CN210772889U - Heat exchanger system and water chilling unit - Google Patents
Heat exchanger system and water chilling unit Download PDFInfo
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- CN210772889U CN210772889U CN201920605793.8U CN201920605793U CN210772889U CN 210772889 U CN210772889 U CN 210772889U CN 201920605793 U CN201920605793 U CN 201920605793U CN 210772889 U CN210772889 U CN 210772889U
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Abstract
The application relates to the technical field of heat exchange, and discloses a heat exchanger system and a water chilling unit. The heat exchanger system is used in a refrigeration loop or a heating loop and comprises an evaporator and a condenser; the evaporator comprises an auxiliary heat exchange tube arranged inside the evaporator, and the auxiliary heat exchange tube comprises an inlet and an outlet which are respectively communicated with the condenser. When the first refrigerant in the evaporator is about to flow out of the evaporator, the first refrigerant and the auxiliary heat exchange tube are subjected to heat exchange, so that the residual liquid refrigerant is vaporized, and the phenomenon of air suction and liquid entrainment of the compressor is improved.
Description
Technical Field
The application relates to the technical field of heat exchange, for example to a heat exchanger system and a water chilling unit.
Background
In an air conditioning apparatus, a compressor generally forms a refrigeration circuit or a heating circuit together with an evaporator and a condenser. The compressor sucks the gaseous refrigerant transmitted by the evaporator through the air suction port, outputs the gaseous refrigerant to the condenser to release heat and liquefy, and then enters the evaporator again to form a cycle.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the phenomenon of air suction and liquid carrying of a plurality of compressors is serious, particularly, the problem of air suction and liquid carrying of a magnetic suspension centrifuge is fatal, and the general problem of air suction and liquid carrying can cause wet compression of a press, increase work of the press and further reduce energy efficiency. Severe suction entrainment can also damage the impeller.
SUMMERY OF THE UTILITY MODEL
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The disclosed embodiments provide a heat exchanger system.
In some embodiments, the heat exchanger system is used in a refrigeration circuit or a heating circuit, comprising an evaporator and a condenser; the evaporator comprises an auxiliary heat exchange tube arranged inside the evaporator, and the auxiliary heat exchange tube comprises an inlet and an outlet which are respectively communicated with the condenser.
In some embodiments, the condenser includes a first input pipeline for inputting a first refrigerant to the condenser, the first refrigerant being a refrigerant circulating in the refrigeration circuit or the heating circuit; the inlet of the auxiliary heat exchange tube is communicated with the first input pipeline through a first bypass pipeline, the outlet of the auxiliary heat exchange tube is communicated with the first input pipeline through a second bypass pipeline, and the second bypass pipeline is provided with a pumping device.
In some embodiments, the condenser includes a first output pipeline for outputting a first refrigerant circulating in the condenser, the first refrigerant being a refrigerant circulating in the refrigeration circuit or the heating circuit; the inlet of the auxiliary heat exchange tube is communicated with the first output pipeline through a first bypass pipeline, the outlet of the auxiliary heat exchange tube is communicated with the first output pipeline through a second bypass pipeline, and the second bypass pipeline is provided with a pumping device.
In some embodiments, a first refrigerant and a second refrigerant flow through the condenser, the first refrigerant is a refrigerant flowing in the refrigeration circuit or the heating circuit, and the second refrigerant is a refrigerant exchanging heat with the first refrigerant; the condenser comprises a second input pipeline and a second output pipeline, the second input pipeline is used for inputting a second refrigerant to the condenser, and the second output pipeline is used for outputting the second refrigerant; the inlet of the auxiliary heat exchange tube is communicated with the second input pipeline through a first bypass pipeline, and the outlet of the auxiliary heat exchange tube is communicated with the second output pipeline through a second bypass pipeline.
In some embodiments, a first refrigerant and a second refrigerant flow through the condenser, the first refrigerant is a refrigerant flowing in the refrigeration circuit or the heating circuit, and the second refrigerant is a refrigerant exchanging heat with the first refrigerant; the condenser comprises a second input pipeline and a second output pipeline, the second input pipeline is used for inputting a second refrigerant to the condenser, and the second output pipeline is used for outputting the second refrigerant; the inlet of the auxiliary heat exchange tube is communicated with the second output pipeline through a first bypass pipeline, the outlet of the auxiliary heat exchange tube is communicated with the second output pipeline through a second bypass pipeline, and the second bypass pipeline is provided with a pumping device.
In some embodiments, the auxiliary heat exchange tube includes at least two auxiliary heat exchange branches, and a gap for the first refrigerant to flow to the first outlet is provided between adjacent auxiliary heat exchange branches.
In some embodiments, at least two auxiliary heat exchange branches are arranged side by side.
In some embodiments, the auxiliary heat exchange tubes comprise at least a first row of auxiliary heat exchange legs and a second row of auxiliary heat exchange legs; the first row of auxiliary heat exchange branches and the second row of auxiliary heat exchange branches are arranged in a staggered manner.
The embodiment of the disclosure also provides a water chilling unit.
Optionally, the chiller comprises the aforementioned heat exchanger system.
In some embodiments, the chiller further comprises a compressor, and the compressor, the evaporator and the condenser form a refrigeration loop or a heating loop.
The heat exchanger system provided by the embodiment of the disclosure can realize the following technical effects:
a first refrigerant flows through the evaporator, and the first refrigerant is a refrigerant of a refrigeration loop or a heating loop; the first refrigerant passes through the auxiliary heat exchange tube before exiting the evaporator and exchanges heat with the auxiliary heat exchange tube to vaporize the remaining liquid first refrigerant, thereby being beneficial to improving the dryness of the first refrigerant output from the evaporator and improving the phenomenon of liquid entrainment during air suction of the compressor.
The water chilling unit adopting the heat exchanger system can reduce the work of the compressor and improve the energy efficiency because the phenomenon that the compressor sucks air and carries liquid is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a heat exchanger system according to an exemplary embodiment;
FIG. 2 is a schematic diagram of a heat exchanger system according to an exemplary embodiment;
FIG. 3 is a schematic diagram of a heat exchanger system according to an exemplary embodiment;
FIG. 4 is a schematic diagram of a heat exchanger system according to an exemplary embodiment
FIG. 5 is a top view of the evaporator of FIG. 1 shown in accordance with an exemplary embodiment;
FIG. 6 is a top view of the evaporator of FIG. 1, shown in accordance with an exemplary embodiment;
FIG. 7 is a cross-sectional view of the evaporator of FIG. 1, shown in accordance with an exemplary embodiment;
FIG. 8 is a cross-sectional view of the evaporator of FIG. 1, shown in accordance with an exemplary embodiment;
FIG. 9 is a top view of the evaporator of FIG. 1, shown in accordance with an exemplary embodiment;
fig. 10 is a schematic diagram illustrating a configuration of a chiller according to an exemplary embodiment.
Reference numerals:
1: an evaporator; 11: a first inlet; 12: a first outlet; 13: an auxiliary heat exchange tube; 131: a first bypass line; 132: a second bypass line; 133: an auxiliary heat exchange branch; 1331: a first row of auxiliary heat exchange branches; 1332: a second row of auxiliary heat exchange branches; 134: a gap; 135: a first auxiliary heat exchange branch; 136: a second auxiliary heat exchange branch; 14: a third input line; 15: a third output line; 2: a condenser; 21: a first input line; 22: a first output line; 23: a second input line; 24: a second output line; 3: a first flow regulating valve; 4: a compressor; 41: an air suction port; 5: a second flow regulating valve; 6: a pumping device.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments herein includes the full ambit of the claims, as well as all available equivalents of the claims.
As shown in fig. 1 to 4, the present disclosure provides a heat exchanger system for use in a refrigeration circuit or a heating circuit, including an evaporator 1 and a condenser 2.
Wherein the evaporator 1 has a first inlet 11 and a first outlet 12; the first inlet 11 is for inputting a first refrigerant into the evaporator 1, and the first outlet 12 is for outputting the first refrigerant flowing through the evaporator 1. The first refrigerant is a refrigerant circulating in the refrigeration circuit or the heating circuit.
In some embodiments, the evaporator 1 further comprises a third input line 14 and a third output line 15. The third input pipeline 14 is used for inputting a third refrigerant into the evaporator 1, and the third refrigerant is used for exchanging heat with the first refrigerant circulating in the evaporator 1, so as to realize the function of the evaporator 1 in a refrigeration circuit or a heating circuit, for example, the first refrigerant absorbs heat and is evaporated into a gaseous state; the third output pipeline 15 is used for outputting the third refrigerant after heat exchange.
In some embodiments, the evaporator 1 further includes an auxiliary heat exchange tube 13 disposed inside the evaporator 1, and configured to exchange heat with the first refrigerant flowing to the first outlet 12, for example, to make the first refrigerant flowing to the first outlet 12 absorb heat and evaporate, so as to vaporize the remaining liquid first refrigerant, which is beneficial to increasing the dryness of the first refrigerant output from the first outlet 12 and improving the phenomenon of liquid entrainment in the suction air of the compressor.
In some embodiments, the auxiliary heat exchange tubes 13 include an inlet and an outlet in communication with the condenser 2, respectively.
In the embodiment of the disclosure, since the temperature of the refrigerant flowing through the condenser 2 is higher than the temperature of the first refrigerant flowing through the evaporator 1, and the first refrigerant flowing through the evaporator 1 is sufficiently evaporated and vaporized, the refrigerant in the condenser 2 is introduced into the auxiliary heat exchange tube 13, and before the first refrigerant exits from the evaporator, the first refrigerant passes through the auxiliary heat exchange tube 13 and exchanges heat with the auxiliary heat exchange tube 13, so as to vaporize the remaining liquid first refrigerant, which is beneficial to improving the dryness of the first refrigerant output from the evaporator 1, and improving the phenomenon of liquid entrainment in the air suction of the compressor.
In some embodiments, the condenser 2 includes a first input line 21 for inputting a first refrigerant to the condenser 2; the condenser further comprises a first output pipeline 22 for outputting the first refrigerant circulating in the condenser 2.
In some embodiments, the first inlet 11 may communicate with the first input line 21 of the condenser 2 through other components, such as a compressor, and the first outlet 12 may communicate with the first output line 22 of the condenser 2 through other components, such as a dry filter, to form a cooling circuit or a heating circuit. Alternatively, the first outlet 12 may also communicate directly with the first outlet line 22 of the condenser 2.
In some embodiments, the condenser 2 further includes a second input pipeline 23 and a second output pipeline 24, the second input pipeline 23 is used for inputting a second refrigerant to the condenser 2, and the second output pipeline 24 is used for outputting the second refrigerant; the second refrigerant exchanges heat with the first refrigerant flowing through the condenser 2 to perform a function of the condenser 2 in a refrigeration circuit or a heating circuit, for example, to liquefy the first refrigerant by heat release.
In some embodiments, as shown in fig. 1, the inlet of the auxiliary heat exchange pipe 13 is communicated with the first input pipe 21 through a first bypass pipe 131, the outlet of the auxiliary heat exchange pipe 13 is communicated with the first input pipe 21 through a second bypass pipe 132, and the second bypass pipe 132 is provided with a pumping device.
The first refrigerant to be input into the condenser 2 is introduced into the auxiliary heat exchange tube 13, and the liquid component in the first refrigerant to be output out of the evaporator 1 is evaporated and vaporized, so that the dryness of the first refrigerant output from the evaporator 1 is improved, and the phenomenon of liquid entrainment in the air suction of the compressor is improved. The first refrigerant is sent back to the first input pipeline 21 through the pumping device, and can continuously flow into the condenser 2 to participate in refrigeration or heating, so that the high-temperature heat of the first refrigerant at the first input pipeline 21 is fully utilized.
In some embodiments, as shown in fig. 2, the inlet of the auxiliary heat exchange pipe 13 is communicated with the first output pipeline 22 through a first bypass pipeline 131, the outlet of the auxiliary heat exchange pipe 13 is communicated with the first output pipeline 22 through a second bypass pipeline 132, and the second bypass pipeline 132 is provided with a pumping device.
The first refrigerant of the output condenser 2 is introduced into the auxiliary heat exchange tube 13 in the embodiment of the disclosure, and the liquid component in the first refrigerant to be output to the evaporator 1 is evaporated and vaporized, which is beneficial to improving the dryness of the first refrigerant output from the evaporator 1 and improving the phenomenon of liquid entrainment in the air suction of the compressor. The first refrigerant returns to the first output pipeline 22 through the pumping device, and then returns to the refrigeration loop or the heating loop, so that the high-temperature heat of the first refrigerant at the first output pipeline 22 is fully utilized.
In some embodiments, as shown in fig. 3, the inlet of the auxiliary heat exchange tube 13 communicates with the second input line 23 through a first bypass line 131, and the outlet of the auxiliary heat exchange tube 13 communicates with the second output line 24 through a second bypass line 132.
The embodiment of the disclosure introduces the second refrigerant which is about to flow into the condenser 2 into the auxiliary heat exchange tube, and evaporates and vaporizes the liquid component in the first refrigerant which is about to output from the evaporator 1, which is beneficial to improving the dryness of the first refrigerant output from the evaporator 1 and improving the phenomenon of liquid entrainment in the air suction of the compressor. Because a pressure difference exists between the second input pipeline 23 and the second output pipeline 24 (the pressure of the second input pipeline 23 is greater than that of the second output pipeline 24), a pumping device is not required to be added between the outlet of the auxiliary heat exchange pipe 13 and the second output pipeline 24, and the second refrigerant output from the outlet of the auxiliary heat exchange pipe 13 is input into the second output pipeline 24 under the action of the pressure difference and then is output to the outside of the condenser.
In some embodiments, as shown in fig. 4, the inlet of the auxiliary heat exchange pipe 13 is communicated with the second output pipe 24 through a first bypass pipe 131, the outlet of the auxiliary heat exchange pipe 13 is communicated with the second input pipe 23 through a second bypass pipe 132, and the second bypass pipe 132 is provided with the pumping device 6.
The second refrigerant flowing out of the condenser 2 is introduced into the auxiliary heat exchange tube to evaporate and vaporize the liquid component in the first refrigerant to be output to the evaporator 1, so that the dryness of the first refrigerant output from the evaporator 1 is improved, and the phenomenon of liquid entrainment in the air suction of the compressor is improved. Since the pressure of the second input pipeline 23 is greater than the pressure of the second output pipeline 24, after the second refrigerant is output from the auxiliary heat exchange tube 13, the second refrigerant of the condenser needs to be input into the second input pipeline 23 by the pumping action of the pumping device 6, and then input into the condenser to participate in heat exchange.
In some embodiments, as shown in fig. 1 to 4, the first bypass line 131 is provided with a first flow rate adjusting valve 3 for adjusting the flow rate of the refrigerant input into the auxiliary heat exchange tube 13.
In some embodiments, as shown in fig. 1 to 5, the auxiliary heat exchange tube 13 is disposed at the first outlet 12, so that the first refrigerant flowing out from the first outlet 12 exchanges heat with the auxiliary heat exchange tube 13, the remaining liquid first refrigerant is vaporized, and the suction liquid entrainment phenomenon of the compressor is improved. Optionally, an auxiliary heat exchange tube 13 is provided at the first outlet 12 through the barrel of the evaporator 1.
In some embodiments, as shown in fig. 6 to 9, the auxiliary heat exchange tube 13 includes at least two auxiliary heat exchange branches 133, a gap 134 is disposed between adjacent auxiliary heat exchange branches 133 for flowing the first refrigerant to the first outlet 12, and the flow direction of the first refrigerant is shown by an arrow in fig. 7 or fig. 8. When the first refrigerant in the gas-liquid mixed state flows through the gap 134, the first refrigerant is simultaneously contacted with the two auxiliary heat exchange branches 133 to exchange heat, so that the heat exchange area can be increased, the heat exchange efficiency is improved, and all the liquid first refrigerants are favorably evaporated into a gas state.
In some embodiments, at least two auxiliary heat exchanging branches 133 are provided, and the two or more auxiliary heat exchanging branches 133 are arranged side by side, as shown in fig. 6, the number of the auxiliary heat exchanging branches 133 can be set to cover the projection of the first outlet 12 to the inside of the evaporator after being arranged side by side, for example, the vertical projection from the first outlet 12 to the inside of the evaporator, which is beneficial to enabling all the first refrigerant flowing to the first outlet 12 to exchange heat with the auxiliary heat exchanging branches 133, and further beneficial to enabling all the remaining liquid first refrigerant to be vaporized. Alternatively, as shown in fig. 7, the auxiliary heat exchange branches 133 are arranged in parallel; as shown in fig. 8, the auxiliary heat exchange branches 133 are arranged in parallel in multiple rows, and when the first refrigerant in a gas-liquid mixed state flows through the auxiliary heat exchange branches arranged in multiple rows, the first refrigerant simultaneously contacts with two or more auxiliary heat exchange tubes 13 to exchange heat, so that the heat exchange area can be increased, the heat exchange efficiency can be improved, and all the liquid first refrigerants can be evaporated into a gaseous state.
In some embodiments, as shown in fig. 8, the auxiliary heat exchange tubes 13 comprise at least a first row of auxiliary heat exchange branches 1331 and a second row of auxiliary heat exchange branches 1332; first row of auxiliary heat exchange branches 1331 are staggered with second row of auxiliary heat exchange branches 1332. In the embodiment of the present disclosure, a curved first refrigerant flow path may be formed between the first row of auxiliary heat exchange branches 1331 and the second row of auxiliary heat exchange branches 1332 which are staggered, as shown by arrows in fig. 8, on one hand, the flow rate of the first refrigerant may be reduced, so that the first refrigerant performs sufficient heat exchange with the first row of auxiliary heat exchange branches 1331 and the second row of auxiliary heat exchange branches 1332, and on the other hand, the first refrigerant may contact with more auxiliary heat exchange branches, so that the contact area is increased, the heat exchange efficiency is improved, and it is beneficial to evaporating all the liquid first refrigerants into a gaseous state.
In some embodiments, there are at least two auxiliary heat exchange branches 133, and more than two auxiliary heat exchange branches 133 are intersected, for example, a first auxiliary heat exchange branch 135 arranged along a first direction and a second auxiliary heat exchange branch 136 arranged along a second direction in fig. 9, and the first direction and the second direction are different, so that the first auxiliary heat exchange branch 135 and the second auxiliary heat exchange branch 136 are intersected. This disclosed embodiment can form polygonized structure's clearance 134 through setting up crossing supplementary heat transfer branch road, when the first refrigerant of gas-liquid mixture state flows through this polygonized structure's clearance 134, will contact with a plurality of supplementary heat transfer branch roads simultaneously, carries out the heat exchange, can increase heat transfer area, improves heat exchange efficiency, is favorable to making all liquid first refrigerants all evaporated into gaseous state. Optionally, as shown in fig. 9, a gap 134 with a quadrilateral structure may be formed after the two first auxiliary heat exchange branches 135 and the two second auxiliary heat exchange branches 136 intersect, and when the first refrigerant in a gas-liquid mixed state flows through the gap 134 with the quadrilateral structure, the first refrigerant will contact the two first auxiliary heat exchange branches 135 and the two second auxiliary heat exchange branches 136 at the same time to perform heat exchange, so that the heat exchange area may be increased, the heat exchange efficiency is improved, and it is beneficial to evaporate all the liquid first refrigerants into a gaseous state.
In some embodiments, the inner wall of the auxiliary heat exchange tube 13 is provided with a heat exchange area enlarging structure, or the outer wall of the auxiliary heat exchange tube 13 is provided with a heat exchange area enlarging structure, or both the inner wall and the outer wall of the auxiliary heat exchange tube 13 are provided with heat exchange area enlarging structures, wherein the heat exchange area enlarging structure is used for enlarging the heat exchange area of the auxiliary heat exchange tube 13.
By adopting the above embodiment, when the inner wall of the auxiliary heat exchange tube 13 is provided with the heat exchange area enlarging structure, the heat exchange area between the first refrigerant or the second refrigerant circulating inside the auxiliary heat exchange tube 13 and the auxiliary heat exchange tube 13 can be enlarged, so that the heat transferred to the outer wall of the auxiliary heat exchange tube 13 is increased, and is absorbed by the first refrigerant flowing to the first outlet 12, thereby improving the heat exchange efficiency, and facilitating all the liquid first refrigerants to be evaporated into a gaseous state; when the outer wall of the auxiliary heat exchange tube 13 is provided with the heat exchange area enlarging structure, the heat exchange area between the first refrigerant flowing to the first outlet 12 and the outer wall of the auxiliary heat exchange tube 13 can be enlarged, so that the heat exchange efficiency is improved, and all liquid refrigerants can be favorably evaporated into a gaseous state.
In some embodiments, the heat exchange area enlarging structure is a thread structure.
In some embodiments, the first bypass pipeline 131 is provided with an insulating layer to prevent unnecessary heat loss of the high-temperature refrigerant of the condenser 2 during the process of inputting the high-temperature refrigerant into the auxiliary heat exchange tubes 13.
The embodiment of the disclosure also provides a water chilling unit.
In some embodiments, the chiller includes the aforementioned heat exchanger system.
In some embodiments, as shown in fig. 10, the chiller further includes a compressor 4, and the compressor 4, the evaporator 1 and the condenser 2 form a cooling circuit or a heating circuit.
In some embodiments, the compressor 4 is provided with a suction port 41, and the suction port 41 communicates with the first outlet 12.
By adopting the above embodiment, the first refrigerant in the evaporator 1 exchanges heat with the auxiliary heat exchange tube 13 before being output from the first outlet 12, so that the liquid refrigerant remaining in the first refrigerant absorbs heat and evaporates into a gas, and then is sucked by the suction port 41 of the compressor 4, which is beneficial to avoiding the liquid entrainment in the suction gas of the compressor, thereby being beneficial to avoiding the wet compression of the compressor and improving the energy efficiency of the compressor.
In some embodiments, compressor 4 further includes a discharge port in communication with first input line 21 and first output line 22 in communication with the first inlet.
In some embodiments, the chiller further includes a second flow regulating valve 5 for regulating the flow of the refrigerant between the condenser 2 and the evaporator 1.
In some embodiments, the water chilling unit further includes a drying filter, which is disposed between the condenser 2 and the evaporator 1, and is capable of drying the first refrigerant output by the condenser 2 and then flowing into the evaporator 1, so as to prevent the compressor from sucking air and carrying liquid to some extent.
The embodiment of the disclosure also provides an air conditioner which comprises the water chilling unit.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims.
The words used in this application are words of description only and not of limitation of the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a structure, device or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The disclosed embodiments are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the embodiments of the present disclosure is limited only by the appended claims.
Claims (10)
1. A heat exchanger system for use in a refrigeration or heating circuit, the heat exchanger system comprising an evaporator and a condenser; the evaporator comprises a first outlet and an auxiliary heat exchange tube arranged in the evaporator, and the auxiliary heat exchange tube is used for exchanging heat with a first refrigerant flowing to the first outlet; the auxiliary heat exchange tube comprises an inlet and an outlet which are respectively communicated with the condenser.
2. The heat exchanger system of claim 1,
the condenser comprises a first input pipeline used for inputting a first refrigerant to the condenser, wherein the first refrigerant is a refrigerant circulating in the refrigeration loop or the heating loop;
the inlet of the auxiliary heat exchange tube is communicated with the first input pipeline through a first bypass pipeline, the outlet of the auxiliary heat exchange tube is communicated with the first input pipeline through a second bypass pipeline, and the second bypass pipeline is provided with a pumping device.
3. The heat exchanger system of claim 1,
the condenser comprises a first output pipeline and a second output pipeline, wherein the first output pipeline is used for outputting a first refrigerant circulating in the condenser, and the first refrigerant is a refrigerant circulating in the refrigerating circuit or the heating circuit;
the inlet of the auxiliary heat exchange tube is communicated with the first output pipeline through a first bypass pipeline, the outlet of the auxiliary heat exchange tube is communicated with the first output pipeline through a second bypass pipeline, and the second bypass pipeline is provided with a pumping device.
4. The heat exchanger system of claim 1,
a first refrigerant and a second refrigerant flow through the condenser, wherein the first refrigerant flows in the refrigeration loop or the heating loop, and the second refrigerant exchanges heat with the first refrigerant;
the condenser comprises a second input pipeline and a second output pipeline, the second input pipeline is used for inputting the second refrigerant to the condenser, and the second output pipeline is used for outputting the second refrigerant;
the inlet of the auxiliary heat exchange tube is communicated with the second input pipeline through a first bypass pipeline, and the outlet of the auxiliary heat exchange tube is communicated with the second output pipeline through a second bypass pipeline.
5. The heat exchanger system of claim 1,
a first refrigerant and a second refrigerant flow through the condenser, wherein the first refrigerant flows in the refrigeration loop or the heating loop, and the second refrigerant exchanges heat with the first refrigerant;
the condenser comprises a second input pipeline and a second output pipeline, the second input pipeline is used for inputting the second refrigerant to the condenser, and the second output pipeline is used for outputting the second refrigerant;
the inlet of the auxiliary heat exchange tube is communicated with the second output pipeline through a first bypass pipeline, the outlet of the auxiliary heat exchange tube is communicated with the second input pipeline through a second bypass pipeline, and the second bypass pipeline is provided with a pumping device.
6. The heat exchanger system according to any one of claims 1 to 5, wherein the auxiliary heat exchange tubes comprise at least two auxiliary heat exchange branches, and a gap for the first refrigerant to flow to the first outlet is formed between adjacent auxiliary heat exchange branches.
7. The heat exchanger system according to claim 6, wherein the at least two auxiliary heat exchange branches are arranged side by side.
8. The heat exchanger system according to any one of claims 1 to 5, wherein the auxiliary heat exchange tubes comprise at least a first row of auxiliary heat exchange legs and a second row of auxiliary heat exchange legs; the first row of auxiliary heat exchange branches and the second row of auxiliary heat exchange branches are arranged in a staggered mode.
9. A water chiller including a heat exchanger system as claimed in any one of claims 1 to 8.
10. The chiller according to claim 9 further comprising a compressor, wherein the compressor, evaporator, and condenser comprise the refrigeration circuit or the heating circuit.
Priority Applications (1)
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| CN201920605793.8U CN210772889U (en) | 2019-04-28 | 2019-04-28 | Heat exchanger system and water chilling unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920605793.8U CN210772889U (en) | 2019-04-28 | 2019-04-28 | Heat exchanger system and water chilling unit |
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| CN210772889U true CN210772889U (en) | 2020-06-16 |
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