CN112944746B - Liquid distributor, falling film type heat exchanger and air conditioner - Google Patents
Liquid distributor, falling film type heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN112944746B CN112944746B CN201911259290.0A CN201911259290A CN112944746B CN 112944746 B CN112944746 B CN 112944746B CN 201911259290 A CN201911259290 A CN 201911259290A CN 112944746 B CN112944746 B CN 112944746B
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- liquid
- gas
- plate
- cavity
- fluid channel
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- 239000007788 liquid Substances 0.000 title claims abstract description 179
- 239000011552 falling film Substances 0.000 title claims abstract description 15
- 238000000926 separation method Methods 0.000 claims abstract description 41
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 238000009826 distribution Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 18
- 239000003507 refrigerant Substances 0.000 description 26
- 239000012071 phase Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a liquid distributor, a falling film type heat exchanger and an air conditioner. The liquid distributor comprises a liquid distribution cavity and a gas-liquid separation part, wherein a fluid channel is arranged in the liquid distribution space, and the gas-liquid separation part is arranged in the fluid channel and is used for separating liquid contained in gas in the fluid channel. A gas-liquid separation piece is arranged in a fluid channel in the liquid distribution cavity to intercept liquid drops carried by gas, so that the liquid drops are prevented from being discharged out of the liquid distributor along with the gas; meanwhile, the additionally arranged gas-liquid separation piece increases the flow path of the gas discharged from the liquid distributor, and further improves the gas-liquid separation efficiency.
Description
Technical Field
The invention belongs to the technical field of falling film heat exchangers, and particularly relates to a liquid distributor, a falling film heat exchanger and an air conditioner.
Background
The falling film evaporator mainly comprises a liquid inlet pipe 11, a liquid distributor, a supporting plate 3, a heat exchange pipe 4, a steam outlet and the like, and the heat exchange process mainly utilizes the liquid distributor to uniformly distribute the refrigerant from the liquid inlet pipe 21 to the heat exchange pipe 4 to form a layer of film, so that heat exchange occurs to evaporate, and the evaporated and converted gas flows out from the air outlet to realize vaporization and conversion.
The gas-liquid two-phase mixed refrigerant enters the liquid distributor from the liquid inlet pipe 11, and the gaseous refrigerant can interfere the uniform distribution of the liquid refrigerant in the liquid distributor, so that the uniformity and stability of liquid distribution on the heat exchange pipe are affected, and therefore, the two-phase refrigerant needs to be separated as much as possible, and the gas-liquid two-phase separation effect of the existing liquid distributor structure is poor.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of providing a liquid distributor, a falling film type heat exchanger and an air conditioner, which can improve the separation effect of gas phase and liquid phase.
In order to solve the problems, the invention provides a liquid distributor, which comprises a liquid distribution cavity and a gas-liquid separation piece, wherein a fluid channel is arranged in the liquid distribution space, and the gas-liquid separation piece is arranged in the fluid channel and is used for separating liquid contained in gas in the fluid channel.
Preferably, the gas-liquid separation piece comprises a baffle, one end of the baffle is fixed on the wall between the liquid distribution cavities, and the surface of the baffle shields part of the fluid channel.
Preferably, the panel includes an inclined or arcuate surface.
Preferably, the plate surface is formed as a concave-convex surface.
Preferably, the concave-convex surface is provided with one or a combination of a V-shaped groove, a U-shaped groove and an arc-shaped groove.
Preferably, the extending direction of the grooves on the concave-convex surface is parallel or perpendicular to the first extending direction of the plate surface.
Preferably, the liquid distribution cavity at least comprises a first cavity surrounded by a liquid-homogenizing plate and an upper cover plate, and first folded edges which are connected with the upper cover plate are arranged on two sides of the liquid-homogenizing plate; the bottom of the liquid-homogenizing plate is provided with a drip hole, and the first folding edge is provided with a first air hole; the fluid passage is a passage through which fluid in the chamber flows out of the first chamber through the first air hole.
Preferably, the liquid distribution space further comprises a second chamber, the second chamber is surrounded by the liquid-homogenizing plate, the upper cover plate and the sealing plate, second folded edges which are connected with the upper cover plate are arranged on two sides of the sealing plate, and the sealing plate is sleeved on the periphery of the first chamber; the bottom of the sealing plate is provided with a drip hole, and the second folded edge is provided with a second air hole; the fluid channel is a channel through which fluid in the first chamber flows out of the liquid distribution cavity through the first air hole and the second air hole in sequence.
Preferably, one end of the gas-liquid separation member is connected to the upper cover plate, and the gas-liquid separation member is located at one side of the first air hole or the second air hole.
According to another aspect of the present invention there is provided a falling film heat exchanger comprising a liquid distributor as described above.
According to another aspect of the present invention there is provided an air conditioner comprising a liquid distributor as described above or a falling film heat exchanger as described above.
The invention provides a liquid distributor, which comprises a liquid distribution cavity and a gas-liquid separation piece, wherein a fluid channel is arranged in the liquid distribution cavity, and the gas-liquid separation piece is arranged in the fluid channel and is used for separating liquid contained in gas in the fluid channel. A gas-liquid separation piece is arranged in a fluid channel in the liquid distribution cavity to intercept liquid drops carried by gas, so that the liquid drops are prevented from being discharged out of the liquid distributor along with the gas; meanwhile, the additionally arranged gas-liquid separation piece increases the flow path of the gas discharged from the liquid distributor, and further improves the gas-liquid separation efficiency.
Drawings
FIG. 1 is a schematic cross-sectional view of a conventional falling film heat exchanger;
FIG. 2 is a schematic view of a liquid distributor according to an embodiment of the present invention;
FIG. 3 is an exploded view of a liquid distributor according to an embodiment of the present invention;
FIG. 4 is a schematic view of the working state of the liquid distributor according to the embodiment of the present invention;
FIG. 5 is a diagram showing four different cross-sectional shapes of the air baffle in the liquid distributor according to the embodiment of the present invention;
FIG. 6 is a schematic view of four different cross-sectional shapes of a gas shield in a liquid distributor according to an embodiment of the present invention;
FIG. 7 is a left side view of still another construction of a gas shield in a liquid distributor according to an embodiment of the present invention;
FIG. 8 is a front view of FIG. 7;
fig. 9 is a view in the A-A direction of fig. 8.
The reference numerals are expressed as:
1. A housing; 11. a liquid inlet pipe; 12. a first gas port; 13. a first liquid port; 2. a liquid distribution cavity; 21. a first chamber; 22. a liquid homogenizing plate; 221. a first hem; 222. a first air hole; 23. a baffle; 24. a sealing plate; 241. a second flanging; 242. a second air hole; 25. an upper cover plate; 26. a second chamber; 3. a support plate; 4. a heat exchange tube.
Detailed Description
Referring to fig. 1 to 7 in combination, according to an embodiment of the present invention, a liquid distributor includes a liquid distribution cavity 2, a fluid passage and a gas-liquid separation member are provided in the liquid distribution cavity 2, and the gas-liquid separation member is provided in the fluid passage for separating liquid contained in a gas in the fluid passage.
In the fluid channel of the liquid distribution cavity 2, a gas-liquid separation piece is arranged, so that liquid drops entrained in the gas can be separated conveniently, and the discharged gas is ensured to contain little or no liquid. Because the gas-liquid separation piece is additionally arranged in the fluid channel, the shape of the fluid channel is changed, the path through which the gas flows is relatively prolonged, the collision opportunity of the gas and the gas-liquid separation piece is increased, and the gas-liquid separation efficiency is improved.
The gas-liquid separation piece comprises a baffle plate 23, one end of the baffle plate 23 is fixed on the wall of the liquid distribution cavity 2, and the surface of the baffle plate 23 shields part of the fluid channel; the gas-liquid separation piece with a plate structure is adopted, so that the contact area of the gas and the gas-liquid separation piece is improved; one end of the baffle plate 23 is fixed, so that gas can only bypass by the other end of the baffle plate 23, the path of the gas is relatively prolonged, and the efficiency of separating liquid is improved.
In some embodiments, the plate surface includes an inclined surface or an arc surface, as shown in fig. 5, the included angle between the plate surface and the wall of the liquid distribution cavity 2 may be a right angle, an acute angle, an obtuse angle, or the plate surface itself is an arc, so that the effect of improving the gas-liquid separation can be achieved.
To further increase the contact area between the gas and the baffle plate 23, the plate surface of the baffle plate 23 is formed to be uneven. Preferably, the relief surface comprises one or a combination of V-grooves, U-grooves and arcuate grooves. The plate surface can also be provided with concave-convex surface with convex point structure or combined structure mode of the above-mentioned multiple forms.
In some embodiments, the grooves on the asperity plane extend in a direction parallel or perpendicular to the first direction of extension of the plate surface, facilitating contact with the gas and simultaneously facilitating collection of the separated liquid. The first extending direction of the board surface is a specific extending direction of the board surface, and the baffle 23 extends in a direction perpendicular to the paper surface as shown in fig. 1.
For the liquid distribution cavity 2, the liquid distribution cavity 2 can comprise a first cavity 21, the first cavity 21 is surrounded by a liquid homogenizing plate 22 and an upper cover plate 25, first folded edges 221 which are connected with the upper cover plate 25 are arranged on two sides of the liquid homogenizing plate 22, and one end of a liquid inlet pipe 11 penetrates through the upper cover plate 25 and extends into the first cavity; the bottom of the liquid-homogenizing plate 22 is provided with a dripping hole, and the first folded edge 221 is provided with a first air hole 222; the fluid passage is a passage through which fluid in the first chamber flows out of the first chamber 21 through the first air hole 222.
The gas-liquid two-phase mixed refrigerant enters the first chamber 21 from the liquid inlet pipe 11, the gas phase can be discharged out of the first chamber 21 along the first air hole 222, and the liquid phase flows down from the drip hole; during the process of discharging the gas phase containing the liquid drops from the first chamber 222, the gas-liquid separation member shields the first gas hole 222, but is spaced therebetween, so that the flowing gas phase can collide with the gas-liquid separation member, the liquid drops are trapped, and the discharged gas is reduced or no liquid drops are entrained.
The liquid distribution cavity 2 can also comprise a second cavity 26, the second cavity is surrounded by a liquid homogenizing plate 22, an upper cover plate 25 and a sealing plate 24, two sides of the sealing plate 24 are provided with second folded edges 241 which are connected with the upper cover plate 25, and the sealing plate 24 is sleeved on the periphery of the first cavity 21; the bottom of the sealing plate 24 is provided with a drip hole, and the second flange 241 is provided with a second air hole 242; the fluid channel is a channel formed by the fluid in the first chamber flowing out of the liquid distribution cavity 2 through the first air hole 222 and the second air hole 242 in sequence.
One end of the gas-liquid separation member is connected to the upper cover plate 25, the gas-liquid separation member is disposed at one side of the first air hole 222 or the second air hole 242, and the gas collides with the gas-liquid separation member when passing through the first air hole 222 or the second air hole 242, thereby separating the liquid from the gas.
The gas-phase refrigerant discharged from the first air hole 222 into the first chamber 21 is discharged from the second air hole 242 into the liquid distribution cavity 2, and the gas-liquid separation member can be arranged between the first air hole 222 and the second air hole 242 or near the first air hole 222 in the first chamber 21, so that the phenomenon that liquid is trapped when the gas-phase refrigerant is discharged can be realized, and the liquid content of the gas-phase refrigerant is reduced.
According to an embodiment of the invention, a falling film heat exchanger comprises a liquid distributor as described above.
As shown in fig. 1, the lower part in the shell 1 is provided with a heat exchange tube 4 and support plates 3 at two sides of the heat exchange tube 4, and a liquid distributor is arranged above the heat exchange tube 4; the bottom of the liquid homogenizing plate 22 and the bottom of the sealing plate 24 in the liquid distributor are provided with drip holes for uniformly dispersing liquid, the sides of the liquid homogenizing plate 22 and the sealing plate 24 are provided with air holes for circulating gaseous refrigerants, as shown in fig. 4, the gas flow direction inside the liquid distributor is that the gas-liquid mixed refrigerant entering from the liquid inlet pipe 11 firstly hits the bottom wall surface of the liquid homogenizing plate 22, the liquid refrigerant is converged at the bottom and flows out along with the drip holes playing a role of uniform flow on the liquid homogenizing plate 22, the air flow direction is changed rapidly, the gas-liquid mixed refrigerant after being changed in direction flows out along the whole slant of the first air holes 222 on the first folded edge 221, then hits the baffle plate 23 and is baffled, then hits the bottom wall surface of the sealing plate 24, gas-liquid separation is performed again, the liquid refrigerant is converged at the bottom of the sealing plate 24 and flows out along with the drip holes on the bottom of the 24, the air flow direction is changed rapidly again, the gas-liquid mixed refrigerant after being changed in direction flows out along the whole slant of the second air holes 242 on the second folded edge 241, and flows out again through the upper cover plate 25. The gas-liquid mixed refrigerant realizes gas-liquid separation through baffling, liquid blocking and filtering of the baffle plate 23 in the whole process.
The baffle 23 can be configured in various structures such as right angle, acute angle, obtuse angle and arc, which can effectively adjust the scouring degree of the gaseous refrigerant to the liquid refrigerant in the limited air passage space between the liquid-homogenizing plate 22 and the sealing plate 24 in the liquid distributor.
The surface of the baffle plate 23 is designed into a V-shaped groove or U-shaped groove structure in the horizontal or vertical direction, so that the surface area of the gas-liquid mixed refrigerant, which impacts the gas baffle plate 23, is increased, small liquid drops are separated to the greatest extent, and the filtering effect is increased. Meanwhile, each groove can play a role in converging the flow guiding of liquid drops, the larger the liquid drops are, the smaller the probability of being entrained by ascending air flow is, the smaller the opposite liquid drop flow resistance is, the easier the liquid drops are dropped, and the lower the probability of being entrained by the entrainment of refrigerant air flow is finally.
The invention has larger practical applicability, the falling film type liquid distributor is internally provided with the baffle plates 23 with different types of structures, and the groove structure can be adopted to enlarge the surface area of the baffle plates 23 impacted by the gas-liquid mixed refrigerant under the condition that the overall size of the baffle plates 23 is unchanged, and the gas-liquid separation is realized to the maximum extent through baffling, liquid blocking and filtering.
When the liquid-liquid phase separation device is used, the gas-liquid two-phase mixed refrigerant is injected into the liquid distribution space 2 through the liquid inlet pipe 11, gas-liquid separation is realized through baffling, liquid blocking and filtering of the baffle plate 23, the gaseous refrigerant bypasses the upper cover plate and flows upwards to be discharged through the first air port 12 on the shell 1, the liquid refrigerant dripped in the liquid distribution space 2 is subjected to heat exchange in the heat exchange pipe 4 to evaporate, the liquid refrigerant is also discharged through the first air port 12, and the liquid refrigerant without phase change can be discharged through the first liquid port 13.
According to an embodiment of the invention, an air conditioner comprises a liquid distributor as described above or a falling film heat exchanger as described above.
It is easy to understand by those skilled in the art that the above embodiments can be freely combined and overlapped without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (7)
1. The liquid distributor is characterized by comprising a liquid distribution cavity (2) and a gas-liquid separation piece, wherein a fluid channel is arranged in the liquid distribution cavity (2), and the gas-liquid separation piece is arranged in the fluid channel and is used for separating liquid contained in gas in the fluid channel;
The gas-liquid separation piece comprises a baffle plate (23), one end of the baffle plate (23) is fixed on the wall of the liquid distribution cavity (2), and the plate surface of the baffle plate (23) shields part of the fluid channel;
the liquid distribution cavity (2) at least comprises a first cavity surrounded by a liquid homogenizing plate (22) and an upper cover plate (25), and first folded edges (221) which are connected with the upper cover plate (25) are arranged on two sides of the liquid homogenizing plate (22); the bottom of the liquid homogenizing plate (22) is provided with a dripping hole, and the first folded edge (221) is provided with a first air hole (222); the fluid passage is a passage through which fluid in the first chamber flows out of the first chamber through the first gas hole (222);
The liquid distribution cavity (2) further comprises a second cavity, the second cavity is surrounded by the liquid distribution plate, the upper cover plate and the sealing plate (24), second folded edges (241) which are connected with the upper cover plate (25) are arranged on two sides of the sealing plate (24), and the sealing plate (24) is sleeved on the periphery of the first cavity; the bottom of the sealing plate (24) is provided with a drip hole, and the second folded edge (241) is provided with a second air hole (242); the fluid channel is a channel for fluid in the first chamber to flow out of the liquid distribution cavity (2) through the first air hole (222) and the second air hole (242) in sequence;
one end of the gas-liquid separation piece is connected to the upper cover plate (25), and the gas-liquid separation piece is located at one side of the first air hole (222) or the second air hole (242).
2. The liquid distributor of claim 1, wherein the deck comprises an inclined or arcuate surface.
3. The liquid distributor according to claim 1 or 2, wherein the plate surface is provided as a concave-convex surface.
4. A liquid distributor as claimed in claim 3 wherein the relief surface is provided with one or a combination of V-grooves, U-grooves and arcuate grooves.
5. The liquid distributor as claimed in claim 4, wherein the extending direction of the grooves on the uneven surface is parallel or perpendicular to the first extending direction of the plate surface.
6. A falling film heat exchanger comprising a liquid distributor as claimed in any one of claims 1 to 5.
7. An air conditioner comprising the liquid distributor according to any one of claims 1 to 5 or the falling film heat exchanger according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259290.0A CN112944746B (en) | 2019-12-10 | 2019-12-10 | Liquid distributor, falling film type heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259290.0A CN112944746B (en) | 2019-12-10 | 2019-12-10 | Liquid distributor, falling film type heat exchanger and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112944746A CN112944746A (en) | 2021-06-11 |
| CN112944746B true CN112944746B (en) | 2024-07-09 |
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ID=76225632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911259290.0A Active CN112944746B (en) | 2019-12-10 | 2019-12-10 | Liquid distributor, falling film type heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112944746B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669123B (en) * | 2022-03-10 | 2023-10-20 | 山东海化集团有限公司 | Method for recycling filtered and centrifuged mother liquor in soda ash production by ammonia-soda process |
| CN115540411A (en) * | 2022-09-28 | 2022-12-30 | 浙江银轮机械股份有限公司 | Gas-liquid separator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211503337U (en) * | 2019-12-10 | 2020-09-15 | 珠海格力电器股份有限公司 | Liquid distributor, falling film type heat exchanger and air conditioner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6868695B1 (en) * | 2004-04-13 | 2005-03-22 | American Standard International Inc. | Flow distributor and baffle system for a falling film evaporator |
| CN102853575B (en) * | 2012-08-22 | 2015-02-18 | 南京五洲制冷集团有限公司 | Air source falling film water chiller-heater unit |
| CN103727707A (en) * | 2013-12-30 | 2014-04-16 | 麦克维尔空调制冷(武汉)有限公司 | Full-falling-film evaporator with double refrigerant distribution devices |
| CN206724521U (en) * | 2017-02-23 | 2017-12-08 | 大连冷冻机股份有限公司 | Suitable for the labyrinth type liquid baffle structure of falling film evaporator |
| CN110044103A (en) * | 2018-01-15 | 2019-07-23 | 杭州赛富特设备有限公司 | A kind of falling film type shell-tube evaporator and air-conditioning system |
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2019
- 2019-12-10 CN CN201911259290.0A patent/CN112944746B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211503337U (en) * | 2019-12-10 | 2020-09-15 | 珠海格力电器股份有限公司 | Liquid distributor, falling film type heat exchanger and air conditioner |
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| CN112944746A (en) | 2021-06-11 |
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