CN104613673B - A kind of jet suction type refrigerated dehumidification unit - Google Patents

A kind of jet suction type refrigerated dehumidification unit Download PDF

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Publication number
CN104613673B
CN104613673B CN201410800572.8A CN201410800572A CN104613673B CN 104613673 B CN104613673 B CN 104613673B CN 201410800572 A CN201410800572 A CN 201410800572A CN 104613673 B CN104613673 B CN 104613673B
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China
Prior art keywords
dehumidifier
unit
generator
outlet
cooler
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CN104613673A (en
Inventor
张丽娜
袁封明
罗成强
陈钦杰
黄明星
陈盼
兰上点
邱剑传
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Ningbo University of Technology
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Ningbo University of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

A kind of jet suction type refrigerated dehumidification unit, including solar refrigeration unit and dehumidifying unit, solar refrigeration unit includes the refrigerant circuit being made up of generator, ejector, condenser, choke valve, vaporizer, and solar refrigeration unit also includes solar heater;Dehumidifying unit includes being connected with each other and being sequentially connected the dehumidifying loop constituting by generator, concentrated solution tank, dehumidifier, cooler, the outlet of vaporizer and the connection of cooler, and cooler is connected with described dehumidifier.The refrigeration system of the present invention makes full use of energy in system and solar energy to drive refrigeration that outdoor damp-heat air is dehumidified, and effectively reduces energy consumption.

Description

A kind of injection-absorption refrigeration dehumidifying unit
Technical field
The present invention relates to a kind of injection-absorption refrigeration dehumidifying unit.
Background technology
With the increasingly raising of people's living standard, also more and more higher is required to environmental amenity, people are to Interior Space The requirement of makings amount also takes much count of it is desirable to room air can be dried and feel nice and cool, so being at this time accomplished by dehydrating unit and system Device for cooling is preferably able to " running neck and neck ", to can carry out dehumidification treatments while air cooling.
Existing some air conditioning unit mostly cool-down dehumidification is carried out by electric compression refrigerating machine, observable index is higher.
Content of the invention
In order to overcome the higher shortcoming of existing air conditioning unit observable index, the present invention provides one kind with the regenerative resource sun Injection-absorption refrigeration dehumidifying the unit in a system can cleverly be merged for driving force, by dehydrating unit and refrigerating plant, Meet the development trend of energy-conserving and environment-protective.
The technical solution used in the present invention is:
A kind of injection-absorption refrigeration dehumidifying unit, including solar refrigeration unit and dehumidifying unit,
Described solar refrigeration unit includes the system being made up of generator, ejector, condenser, choke valve, vaporizer Cold loop, wherein,
The gas outlet of described generator is connected with ejector first entrance, the outlet of described ejector and condenser, section Stream valve is connected with the entrance of described vaporizer after being sequentially connected, and the outlet of described vaporizer is with the second entrance of described ejector even Connect,
Described solar refrigeration unit also includes the solar heater for heating generator inner refrigerant solution, institute State solar heater to connect with described generator, to constitute reheat loop;
Described dehumidifying unit includes the dehumidifying loop being interconnected to constitute by described generator, concentrated solution tank, cooler, Wherein,
The concentrated solution outlet of described generator is connected with the first entrance of dehumidifier after being connected with described concentrated solution tank, described Outlet at bottom one tunnel of dehumidifier is connected with the entrance of described generator, and another road of outlet at bottom of described dehumidifier is cold with described But the Heating medium of device connects, and the heating agent outlet of described cooler is connected with the second entrance of described dehumidifier,
The outlet of described vaporizer is connected with the refrigerant import of cooler, the refrigerant exit of described cooler and described dehumidifying 3rd entrance of device connects.
Further, it is additionally provided between described condenser and choke valve and the draining constituting is sequentially connected by water tank and drain valve Branch road.
Further, be also associated with the first solution pump between described dehumidifier and generator, described dehumidifier and cooler it Between be additionally provided with the second solution pump;It is also associated with solution regulating valve between described concentrated solution tank and described dehumidifier;Described solar energy Heater is connected with described generator and is additionally provided with temperature controller and effusion meter on the reheat loop constituting.
Further, it is provided with filler in described dehumidifier, described dehumidifier is heat insulation-type dehumidifier.
Further, the refrigerant solution of described solar refrigeration unit adopts lithium bromide water solution, and wherein cold-producing medium is water.
The invention has the beneficial effects as follows:
(1) refrigeration unit of the present invention cleverly drives refrigeration using low-grade solar energy, and makes full use of in system Energy, realize energy complement, there is the advantage of multiple energy-saving, be not required to consume high-grade electric energy, saved the energy.
(2) the dehumidifying unit of the present invention is dehumidified to outdoor fresh air using solution circulation, that is, utilize the dehumidifying generation of solution Replace traditional electric drive cooling and dehumidifying, effectively reduce energy consumption.
(3) refrigeration unit uses ejector to replace compressor, has saved the consumption of electric power, so that system is more simplified, compact; According to ejector principle, because it does not require the expenditure of energy so that the energy consumption in refrigeration system reduces, and can provide more Cold-producing medium, makes refrigerating efficiency improve, significant to the area of power supply shortage.
(5) with water as cold-producing medium, refrigeration unit is run under vacuum conditions again, odorless, nontoxic, no explosion danger, safety Reliable, meet the requirement of environmental protection;Whole refrigerating plant, in addition to the solution pump of power very little, does not have other moving components, shakes Dynamic little, noise is low, and running and comparing is quiet, is particularly well-suited to the occasions such as hospital, hotel, dining room, office block, cinema.
(6) cooling in summer, dehumidifying can be separated, improve the accuracy of temperature, humidity regulation, significantly carry The high utilization rate of solar energy system and economy, more can alleviate a summer shortage of electric power difficult problem, for hot-summer and cold-winter area very It is suitable for, improve the kind of refrigeration cycle of traditional air conditioner, reach the purpose of more energy-saving and emission-reduction on the basis of original.
Brief description
Fig. 1 is the systematic schematic diagram of the present invention.
Specific embodiment
Referring to the drawings 1, a kind of injection-absorption refrigeration dehumidifying unit, include solar refrigeration unit and the unit that dehumidifies,
Described solar refrigeration unit includes being made up of generator 1, ejector 2, condenser 3, choke valve 7, vaporizer 8 Refrigerant circuit, wherein,
The gas outlet of described generator 1 is connected with ejector 2 first entrance, the outlet of described ejector 2 and condenser 3rd, choke valve 7 is connected with the entrance of described vaporizer 8 after being sequentially connected, described vaporizer 8 export and described ejector 2 the Two entrances connect,
Described solar refrigeration unit also includes the solar heater for heating generator 1 inner refrigerant solution 16, described solar heater 16 is connected with described generator 1, to constitute reheat loop;
Described dehumidifying unit includes being connected with each other by described generator 1, concentrated solution tank 15, dehumidifier 11, cooler 13 The dehumidifying loop constituting, wherein,
The concentrated solution of described generator 1 is exported and is connected with the first entrance of dehumidifier 11 after being connected with described concentrated solution tank 15 Connect, outlet at bottom one tunnel of described dehumidifier 11 is connected with the entrance of described generator 1, and the outlet at bottom of described dehumidifier 11 is another One tunnel is connected with the Heating medium of described cooler 13, and the heating agent outlet of described cooler 13 enters with the second of described dehumidifier 11 Mouth connects,
The outlet of described vaporizer 8 is connected with the refrigerant import of cooler 13, the refrigerant exit of described cooler 13 and institute The 3rd entrance stating dehumidifier 11 connects;
Further, it is additionally provided between described condenser 3 and choke valve 7 to be sequentially connected by water tank 5 and drain valve 6 and constitute Draining branch road.
Further, it is also associated with the first solution pump 10 between described dehumidifier 11 and generator 1;Described dehumidifier 11 and cold But it is additionally provided with the second solution pump 9 between device 13;It is also associated with solution between described concentrated solution tank 15 and described dehumidifier 11 to adjust Valve 14;Described solar heater 16 connect with described generator 1 constitute reheat loop on be additionally provided with temperature controller 18 and Effusion meter 17.
Further, it is provided with filler in described dehumidifier 11, described dehumidifier 11 is heat insulation-type dehumidifier.
Further, the refrigerant solution of described solar refrigeration unit adopts lithium bromide water solution, and wherein cold-producing medium is water.
Unit principle is:
(1) dehumidify unit
In unit, flowing is refrigerant solution, and the unit adopts lithium bromide water solution, and wherein cold-producing medium is water.Generator Lithium bromide weak solution in 1 becomes concentrated solution after the heating of solar thermal collector 16 and flows into dehumidifying after concentrated solution tank 15 Mix in device 11 and with the low-temperature refrigerant carrying out flash-pot 8, temperature reduces thinning rear the entrance in dehumidifier 11 of solution and sprayed Drench, the solution one after spray in dehumidifier 11 route the first solution pump 10 and returns the utilization of generator 1 interior circulation, another route second Solution pump 9 is returned in cooler 13 and is carried out heat exchange with the low-temperature refrigerant carrying out flash-pot 8, by dehumidifier 11 after temperature reduction Second entrance enter dehumidifier 11 in sprayed.Dehumidifier 11 is first sprayed on filler built with filler, the solution of top Contact with the damp-heat air being flowed by dehumidifier again, damp-heat air is dried, after the moisture in concentrated solution absorption air Return in generator 1, dehumidifying unit achieves the dehumidifying to air using solution circulation.Concentrated solution in dehumidifier 11 from upper and Lower concentration is gradually lowered, and in dehumidifier 11, the filler of setting can be effectively increased contact area and the time of solution and damp-heat air, Strengthen effect on moisture extraction further.
Dehumidifying unit takes full advantage of the cold that vaporizer 8 in refrigeration system exports cold-producing medium, molten to sprayed in advance Liquid carries out pre-cooling, reduces spray temperature, further enhances the effect on moisture extraction in dehumidifier 11.
(2) refrigeration unit
In generator 1, the high-temperature high-pressure steam that is evaporated because of weak solution heating, with the warp carrying out flash-pot 8 Cross heat exchange low temperature and low pressure steam converge after, become the refrigerant vapour of medium temperature and medium pressure through ejector 2 and flow into condenser 3 Interior, condense into water as refrigerant to cooling water heat release, generate low-temp low-pressure gas-liquid two-phase cold-producing medium through choke valve 7, flow in vaporizer 8 Evaporation endothermic, cooling, come the dried hot-air of dehumidifier 11 of hanging oneself, is realized the cooling to hot-air, is completed kind of refrigeration cycle.
It is provided between described condenser 3 and choke valve 7 and the draining branch road constituting is sequentially connected by water tank 5 and drain valve 6, To exclude unnecessary cold-producing medium water in unit.
Generator 1 bottom connects the inlet and outlet of solar heater 16, solar heater 16 respectively by water pipe Heat using the sun heats to the weak solution in generator 1, on the one hand can improve the concentration of solution;On the other hand can Enter ejector 2 using the vapor obtaining evaporation as refrigerant gas to be sprayed, thus preferably energy-conservation.
Content described in this specification embodiment is only enumerating of the way of realization to inventive concept, the protection of the present invention Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention is also and in art technology Personnel according to present inventive concept it is conceivable that equivalent technologies mean.

Claims (5)

1. a kind of injection-absorption refrigeration dehumidifying unit, include solar refrigeration unit with dehumidify unit it is characterised in that:
Described solar refrigeration unit includes the refrigerating ring being made up of generator, ejector, condenser, choke valve, vaporizer Road, wherein,
The gas outlet of described generator is connected with ejector first entrance, the outlet of described ejector and condenser, choke valve It is connected with the entrance of described vaporizer after being sequentially connected, the outlet of described vaporizer is connected with the second entrance of described ejector,
Described solar refrigeration unit also includes the solar heater for heating generator inner refrigerant solution, described too Sun can heater be connected with described generator, to constitute reheat loop;
Described dehumidifying unit includes the dehumidifying loop being interconnected to constitute by described generator, concentrated solution tank, cooler, its In,
The concentrated solution outlet of described generator is connected with the first entrance of dehumidifier after being connected with described concentrated solution tank, described dehumidifying Outlet at bottom one tunnel of device is connected with the entrance of described generator, another road of outlet at bottom of described dehumidifier and described cooler Heating medium connect, the outlet of the heating agent of described cooler is connected with the second entrance of described dehumidifier,
The outlet of described vaporizer is connected with the refrigerant import of cooler, the refrigerant exit of described cooler and described dehumidifier 3rd entrance connects.
2. as claimed in claim 1 one kind injection-absorption refrigeration dehumidify unit it is characterised in that:Described condenser and section It is additionally provided between stream valve and be sequentially connected the draining branch road constituting by water tank and drain valve.
3. as claimed in claim 2 one kind injection-absorption refrigeration dehumidify unit it is characterised in that:Described dehumidifier and send out It is also associated with the first solution pump between raw device, between described dehumidifier and cooler, be additionally provided with the second solution pump;Described concentrated solution It is also associated with solution regulating valve between tank and described dehumidifier;Described solar heater connects adding of composition with described generator Temperature controller and effusion meter are additionally provided with hot loop.
4. as claimed in claim 3 one kind injection-absorption refrigeration dehumidify unit it is characterised in that:Set in described dehumidifier There is filler, described dehumidifier is heat insulation-type dehumidifier.
5. as claimed in claim 4 one kind injection-absorption refrigeration dehumidify unit it is characterised in that:Described solar refrigeration The refrigerant solution of unit adopts lithium bromide water solution, and wherein cold-producing medium is water.
CN201410800572.8A 2014-12-22 2014-12-22 A kind of jet suction type refrigerated dehumidification unit Active CN104613673B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110926053B (en) * 2019-11-29 2021-07-23 四川大学 Lithium bromide absorption type refrigeration cycle system based on AGMD
CN113883741B (en) * 2021-10-14 2023-05-30 青岛海信日立空调系统有限公司 Absorption refrigeration system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4273184A (en) * 1978-09-05 1981-06-16 Osaka Gas Kabushiki Kaisha Solar heat utilized air-conditioning system
CN101240925A (en) * 2007-02-07 2008-08-13 广东志高空调有限公司 Solar energy absorption type liquid dehumidifying air-conditioning system
CN201218626Y (en) * 2008-05-19 2009-04-08 张茂勇 Medium-temperature solar energy-driving and cold-hot bidirectional-utilizing third-kind absorption heat pump
CN203464532U (en) * 2013-07-15 2014-03-05 朱军 Double injection rotating wheel dehumidifying air-conditioning system for automobile
CN203464531U (en) * 2013-07-15 2014-03-05 朱军 Single injection rotating wheel dehumidifying air-conditioning system for automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4273184A (en) * 1978-09-05 1981-06-16 Osaka Gas Kabushiki Kaisha Solar heat utilized air-conditioning system
CN101240925A (en) * 2007-02-07 2008-08-13 广东志高空调有限公司 Solar energy absorption type liquid dehumidifying air-conditioning system
CN201218626Y (en) * 2008-05-19 2009-04-08 张茂勇 Medium-temperature solar energy-driving and cold-hot bidirectional-utilizing third-kind absorption heat pump
CN203464532U (en) * 2013-07-15 2014-03-05 朱军 Double injection rotating wheel dehumidifying air-conditioning system for automobile
CN203464531U (en) * 2013-07-15 2014-03-05 朱军 Single injection rotating wheel dehumidifying air-conditioning system for automobile

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