CN201392050Y - Evaporative condensed water cooling and heating unit with heat recoverer - Google Patents

Evaporative condensed water cooling and heating unit with heat recoverer Download PDF

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Publication number
CN201392050Y
CN201392050Y CN200920053941U CN200920053941U CN201392050Y CN 201392050 Y CN201392050 Y CN 201392050Y CN 200920053941 U CN200920053941 U CN 200920053941U CN 200920053941 U CN200920053941 U CN 200920053941U CN 201392050 Y CN201392050 Y CN 201392050Y
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China
Prior art keywords
heat
condenser
compressor
evaporimeter
cold water
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Expired - Lifetime
Application number
CN200920053941U
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Chinese (zh)
Inventor
李志明
朱新华
吴伟营
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HUADE INDUSTRY Co Ltd GUANGZHOU CITY
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HUADE INDUSTRY Co Ltd GUANGZHOU CITY
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Abstract

The utility model provides an evaporative condensed cooling and heating unit with a heat recoverer, which comprises a compressor, a heat recoverer and a condenser, as well as a liquid storage device, a dry filter barrel, an expansion valve and an evaporator which are connected in sequence. The outlet of the compressor is connected with the heat recoverer and the condenser in series in sequence; the outlet of the condenser is connected with the liquid storage device; the outlet of the compressor is respectively connected with the heat recoverer and the condenser; the outlets of the heat recoverer and the condenser are respectively connected with the liquid storage device, i.e. the heat recoverer is connected with the condenser in parallel; and the outlet of the evaporator is connected with the compressor to form a closed refrigerating circuit. The utility model provides refrigerated water, simultaneously utilizes the heat recoverer to recover 30-70 percent of heat of the unit to prepare domestic hot water of 40-60 DEG C, and can be widely applied to guesthouses, hotels, gymnasiums, hospitals, high-class apartments, schools, emporiums, entertainment and dining places, villas, food processing plants and other public occasions where air conditioners and hot water are required to be intensively and comprehensively provided, thereby having wider application scope.

Description

The evaporating type condensing hot and cold water unit of band recuperation of heat
Technical field
The utility model relates to operation of air conditioning systems, particularly a kind of evaporating type condensing hot and cold water unit with recuperation of heat.
Background technology
In science and technology highly developed today, people pursue more comfortable life, and air-conditioning and hot-water heating system are general for this reason is used for public building and dwelling house.Yet air conditioner industry is big power consumer's (according to statistics, accounting for more than 60% of total energy consumption of building), and air-conditioning together is discharged into indoor heat together with the useless energy of its consumption outdoor, has caused serious thermal pollution to outdoor environment, and has increased the weight of the tropical island effect in city; In addition, hot-water heating system need utilize the new high-quality energy that hot water is provided, and this has caused the dual waste of energy.In the face of the situation of energy growing tension, resource serious waste, the secondary utilization of " energy-conservation ", air-conditioning non-renewable energy resources and the importance of environmental protection day by day show especially in the development process of economic society.
Because the non-renewable energy that the heat that air-conditioning is got rid of is people has spent money to consume, by unnecessary waste condensation waste heat, therefore, must play the effect of environmental protection and energy saving if can be well used, produce good social benefit and economic benefit.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect that above-mentioned prior art exists, and the structure of existing air-conditioning unit is done further improvement, and a kind of evaporating type condensing hot and cold water unit of band recuperation of heat of efficient, energy-conservation, water saving is provided.
The purpose of this utility model is achieved through the following technical solutions: the evaporating type condensing hot and cold water unit of band recuperation of heat comprises compressor, heat regenerator, condenser and the reservoir, dry filter bucket, expansion valve and the evaporimeter that connect successively; The outlet of described compressor and heat regenerator, condenser are connected in series successively, and the outlet of condenser is connected with reservoir; Perhaps the outlet of described compressor is connected with heat regenerator, condenser respectively, and the outlet of heat regenerator and condenser is connected with reservoir respectively, and promptly heat regenerator is in parallel with condenser; The outlet of described evaporimeter is connected with compressor.
Described heat regenerator also is connected with hot water circulation loop.
Described evaporimeter also is connected with the chilled water closed circuit.
Described evaporimeter is dry-expansion shell and tube evaporator, full-liquid type shell-tube evaporator, bushing type evaporimeter, falling film evaporation formula evaporimeter or brazing-sheet type evaporimeter.
Described heat regenerator is dry type case tube heat exchanger, full-liquid type case tube heat exchanger, fin-tube heat exchanger, double pipe heat exchanger, falling film evaporation formula heat exchanger or brazing plate type heat exchanger.
Described compressor is Scroll-type compressor, screw compressor or centrifugal compressor.
Described expansion valve is internal and external equilibrium formula heating power expansion valve or electronic expansion valve.
Described condenser is coil pipe evaporative condenser or tube-plate evaporative condensing device.
Described heat regenerator and condenser are connected in series, and when heat regenerator is the full-liquid type shell-tube evaporator, described heat regenerator is provided with the fluid level controller that is used to control liquid level, the fluid level controller two ends are respectively equipped with the copper ball valve, simultaneously, wherein the pipeline that is connected with reservoir of an end copper ball valve is provided with magnetic valve, and fluid level controller has guaranteed that the copper pipe in the heat regenerator can not expose liquid level and influence the heat exchange effect.
The port of export of described reservoir is provided with liquid-sighting glass and condensing pressure controller successively; The import and export two ends of described dry filter bucket are respectively equipped with the copper ball valve.
The entrance point of described compressor is provided with low-pressure meter, and the port of export is provided with high pressure gauge, and is provided with the two pressure switches of height between high pressure gauge and the low-pressure meter.
Action principle of the present utility model is: compressor, heat regenerator, condenser and the reservoir that connects successively, dry filter bucket, expansion valve and evaporimeter constitute the refrigerating circuit of sealing, and refrigerating circuit utilizes cold-producing medium (as freon etc.) to freeze; Because evaporimeter is connected with the chilled water closed circuit, so cold-producing medium in the refrigerating circuit and the chilled water in the chilled water closed circuit carry out the cold exchange in evaporimeter, thereby reduce the temperature of chilled water, utilize the air in the chilled water cooling chamber again; Heat regenerator is connected with hot water circulation loop simultaneously, the hot water that temperature is lower absorbs the heat that enters the high temperature and high pressure gaseous refrigerant in the heat regenerator of discharging from compressor, produce the higher hot water of temperature, thereby can reclaim the heat that discharges in the unit operation, can improve the unit operation condition again, improve heat exchange efficiency, the purpose of reached energy-saving and environmental protection, reducing expenses; In the refrigerating circuit, when heat regenerator is connected with condenser, after the compressed machine compression of cold-producing medium back becomes the gas of high-temperature high-pressure state, at first enter heat regenerator, utilize its condensation latent heat and super cooled sect sensible heat heating domestic water (import can be running water etc.), the cold-producing medium condensation that is cooled simultaneously, enter further condensation in the condenser again, the liquid of warm high pressure was after reservoir during the gaseous refrigerant of HTHP was cooled into, the dry filter bucket, be to enter in the evaporimeter behind the liquid of low-temp low-pressure to carry out heat exchange by the throttling step-down by expansion valve then with chilled water, with water cooling, the liquid refrigerant of low-temp low-pressure becomes low-temp low-pressure gas after absorbing heat and evaporating in evaporimeter at this moment, come back to compressor, finish the kind of refrigeration cycle process; When heat regenerator is in parallel with condenser, the compressed machine compression of cold-producing medium back becomes the gas of high-temperature high-pressure state, enter heat regenerator and condenser respectively by refrigeration system pipeline, the cold-producing medium that enters in the heat regenerator is emitted heat heating domestic water (import can be running water etc.), and the cold-producing medium that enters in the condenser carries out heat exchange by water and air, the liquid of warm high pressure was after reservoir the cold-producing medium that comes out from heat regenerator and condenser was cooled and is condensed into, the dry filter bucket, be to enter in the evaporimeter behind the liquid of low-temp low-pressure to carry out heat exchange by the throttling step-down by expansion valve then with chilled water, with water cooling, the liquid refrigerant of low-temp low-pressure becomes low-temp low-pressure gas after absorbing heat and evaporating in evaporimeter at this moment, come back to compressor, finish the kind of refrigeration cycle process.
The utility model has following advantage and effect with respect to prior art:
(1) high temperature and high pressure gaseous refrigerant in the heat regenerator is emitted heat heating domestic water, can reclaim 30%~70% heat of unit discharging, produces 40 ℃~60 ℃ domestic hot-water, has remarkable energy saving effect; Compare with former machine with the unit of heat regenerator simultaneously and be equivalent to increase a condenser, enlarged its condensation area, reduce the thermic load of former condenser, make its heat exchanger effectiveness higher.
(2) adopt plane liquid film evaporation formula condensation technology, the complete machine refrigerating efficiency obviously improves, the complete machine Energy Efficiency Ratio is higher than the up-to-date grading index one-level level of handpiece Water Chilling Units energy efficiency country under the standard condition, more than 20%, more energy-conservation more than 35% than general band heat recovery water cold type unit power saving than the general air-cooled unit of band recuperation of heat;
(3) unit need not to dispose cooling tower and powerful cooling water pump, owing to adopt the evaporating type condensing technology, make full use of the evaporation of plate surface moisture film, only need less air quantity and less cooling water inflow can realize the cooling condensation of cold-producing medium by mass transfer with conducting heat, the distribution power and the engineering initial cost of blower fan, water pump obviously reduce.
(4) can make full use of the cooling air of the indoor exhaust wind of low temperature low humidity as evaporative condenser, both utilized the sensible heat (temperature difference) of indoor exhaust wind, utilized the latent heat (psychrometric difference) of indoor exhaust wind again, condensation effect is better than directly adopting outdoor air as the cooling air greatly, avoided the energy loss of ventilating and to cause because of air displacement, energy-saving effect is more remarkable.
(5) need not to dispose cooling tower, advanced reasonably water film type cloth water cooling mode, make cooling water to greatest extent with evaporimeter in condensation plate surface fully wetting, the heat exchange of enforcing condensation plate, and effectively overcome plate planomural moisture film and occur the scale formation that " doing " causes easily; In addition, stopped " flying water " phenomenon that cooling tower exists fully,, can realize that water-saving rate is more than 50% so compare with the water-cooled unit that uses cooling tower.
(6) condensed water that air-conditioning system can be treated emission treatment directly refers in the unit cooling water system as cooling water, because condensate temperature is low, both reclaimed the cold of condensed water, make cooling effect better, because the cooling water consumption has further been saved in the direct recovery of condensed water.
(7) owing to adopted the evaporating type condensing technology, utilize the evaporation of plate surface moisture film, only need less air quantity and less cooling water inflow can realize plate inner refrigerant cooling condensation by mass transfer and heat transfer, the mechanomotive force of joining of blower fan water pump obviously reduces, save unit energy consumption 10%, the unit noise is than the low 10~15dB of general Air cooler (A).
(8) the utility model fundamentally realize to greatest extent energy reclaim and cut down the consumption of energy, the water consumption, efficiently solve air-conditioning system and reclaim condenser heat, improve the problem of systematic function, energy-saving and water-saving and healthy dual performance have been realized, can be widely used in hotel, hotel, gymnasium, hospital, condo, school, market, amusement food and drink, villa, food processing factory and need to concentrate other communal facilitys that air-conditioning and hot water comprehensively are provided, range of application is wider, good market prospect.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is the integrally-built schematic rear view of Fig. 1.
Fig. 3 is heat regenerator systematic schematic diagram of the present utility model when connecting with condenser.
Fig. 4 is heat regenerator systematic schematic diagram of the present utility model when in parallel with condenser.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is done further detailed description, but embodiment of the present utility model is not limited thereto.
Embodiment 1
A kind of evaporating type condensing hot and cold water unit of present embodiment with recuperation of heat, its overall structure as depicted in figs. 1 and 2, comprise compressor 1, heat regenerator 2, condenser 4 and the reservoir 5, dry filter bucket 6, expansion valve 7 and the evaporimeter 8 that connect successively, shown in the systematic schematic diagram of Fig. 3, wherein the outlet of compressor 1 and heat regenerator 2, condenser 4 are connected in series successively, the outlet of condenser 4 is connected with reservoir 5, and the outlet of evaporimeter 8 is connected with compressor 1.
Heat regenerator 2 also is connected with hot water circulation loop; Evaporimeter 8 also is connected with the chilled water closed circuit.
Wherein evaporimeter 8 can be dry-expansion shell and tube evaporator, full-liquid type shell-tube evaporator, bushing type evaporimeter, falling film evaporation formula evaporimeter or brazing-sheet type evaporimeter; Heat regenerator 2 can be dry type case tube heat exchanger, full-liquid type case tube heat exchanger, fin-tube heat exchanger, double pipe heat exchanger, falling film evaporation formula heat exchanger or brazing plate type heat exchanger; Compressor 1 can be Scroll-type compressor, screw compressor or centrifugal compressor; Expansion valve 7 can be internal and external equilibrium formula heating power expansion valve or electronic expansion valve; Condenser 4 can be coil pipe evaporative condenser or tube-plate evaporative condensing device.
When heat regenerator 2 and condenser 4 are connected in series, and when heat regenerator 2 is the full-liquid type shell-tube evaporator, heat regenerator 2 is provided with the fluid level controller 3 that is used to control liquid level, fluid level controller 3 two ends are respectively equipped with copper ball valve 9, simultaneously, wherein the pipeline that is connected with reservoir 5 of an end copper ball valve 9 is provided with magnetic valve 10, and fluid level controller 3 has guaranteed that the copper pipe in the heat regenerator 2 can not expose liquid level and influence the heat exchange effect.
The port of export of reservoir 5 is provided with liquid-sighting glass 11 and condensing pressure controller 12 successively; The import and export two ends of dry filter bucket 6 are respectively equipped with copper ball valve 9; The entrance point of compressor 1 is provided with low-pressure meter 13, and the port of export is provided with high pressure gauge 14, and is provided with the two pressure switches 15 of height between high pressure gauge 14 and the low-pressure meter 13.
The action principle of present embodiment is: compressor 1, heat regenerator 2, condenser 4 and the reservoir 5 that connects successively, dry filter bucket 6, expansion valve 7 and evaporimeter 8 constitute the refrigerating circuit of sealing, and refrigerating circuit utilizes cold-producing medium (as freon etc.) to freeze; Because evaporimeter 8 is connected with the chilled water closed circuit, so cold-producing medium in the refrigerating circuit and the chilled water in the chilled water closed circuit carry out the cold exchange in evaporimeter 8, thereby reduce the temperature of chilled water, utilize the air in the chilled water cooling chamber again; Heat regenerator 2 is connected with hot water circulation loop simultaneously, the hot water that temperature is lower absorbs the heat that enters the high temperature and high pressure gaseous refrigerant in the heat regenerator 2 of discharging from compressor 1, produce the higher hot water of temperature, thereby can reclaim the heat that discharges in the unit operation, can improve the unit operation condition again, improve heat exchange efficiency, the purpose of reached energy-saving and environmental protection, reducing expenses; In the refrigerating circuit, heat regenerator 2 is connected with condenser 4, after the compressed machine of cold-producing medium 1 compression back becomes the gas of high-temperature high-pressure state, at first enter heat regenerator 2, utilize its condensation latent heat and super cooled sect sensible heat heating domestic water (import can be running water etc.), the cold-producing medium condensation that is cooled simultaneously, enter further condensation in the condenser 4 again, the liquid of warm high pressure during the gaseous refrigerant of HTHP is cooled into is after reservoir 5, dry filter bucket 6, be to enter in the evaporimeter 8 behind the liquid of low-temp low-pressure to carry out heat exchange by the throttling step-down by expansion valve 7 then with chilled water, with water cooling, the liquid refrigerant of low-temp low-pressure becomes low-temp low-pressure gas after absorbing heat and evaporating in evaporimeter 8 at this moment, come back to compressor 1, so far finish the kind of refrigeration cycle process.
Embodiment 2
A kind of evaporating type condensing hot and cold water unit of present embodiment with recuperation of heat, shown in the system principle of Fig. 4, compare with embodiment 1, difference is that the outlet of compressor 1 is connected with heat regenerator 2, condenser 4 respectively, and the outlet of heat regenerator 2 and condenser 4 is connected with reservoir 5 respectively, be that heat regenerator 2 is in parallel with condenser 4, simultaneously, when system for this reason during connected mode, need not to be provided with the device of fluid level controller and corresponding connection thereof in the heat regenerator 2.
The action principle of present embodiment is: compressor 1, heat regenerator 2, condenser 4 and the reservoir 5 that connects successively, dry filter bucket 6, expansion valve 7 and evaporimeter 8 constitute the refrigerating circuit of sealing, and refrigerating circuit utilizes cold-producing medium (as freon etc.) to freeze; Because evaporimeter 8 is connected with the chilled water closed circuit, so cold-producing medium in the refrigerating circuit and the chilled water in the chilled water closed circuit carry out the cold exchange in evaporimeter 8, thereby reduce the temperature of chilled water, utilize the air in the chilled water cooling chamber again; Heat regenerator 2 is connected with hot water circulation loop simultaneously, the hot water that temperature is lower absorbs the heat that enters the high temperature and high pressure gaseous refrigerant in the heat regenerator 2 of discharging from compressor 1, produce the higher hot water of temperature, thereby can reclaim the heat that discharges in the unit operation, can improve the unit operation condition again, improve heat exchange efficiency, the purpose of reached energy-saving and environmental protection, reducing expenses; In the refrigerating circuit, heat regenerator 2 is in parallel with condenser 4, the compressed machine compression of cold-producing medium back becomes the gas of high-temperature high-pressure state, enter heat regenerator 2 and condenser 4 respectively by refrigeration system pipeline, the cold-producing medium that enters in the heat regenerator 2 is emitted heat heating domestic water (import can be running water etc.), and the cold-producing medium that enters in the condenser 4 carries out heat exchange by water and air, the liquid of warm high pressure was after reservoir 5 cold-producing medium that comes out from heat regenerator 2 and condenser 4 was cooled and is condensed into, dry filter bucket 6, be to enter in the evaporimeter 8 behind the liquid of low-temp low-pressure to carry out heat exchange by the throttling step-down by expansion valve 7 then with chilled water, with water cooling, the liquid refrigerant of low-temp low-pressure becomes low-temp low-pressure gas after absorbing heat and evaporating in evaporimeter 8 at this moment, come back to compressor 1, so far finish the kind of refrigeration cycle process.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.

Claims (10)

1, the evaporating type condensing hot and cold water unit of band recuperation of heat is characterized in that, comprises compressor, heat regenerator, condenser and the reservoir, dry filter bucket, expansion valve and the evaporimeter that connect successively; The outlet of described compressor and heat regenerator, condenser are connected in series successively, and the outlet of condenser is connected with reservoir; Perhaps the outlet of described compressor is connected with heat regenerator, condenser respectively, and the outlet of heat regenerator and condenser is connected with reservoir respectively, and promptly heat regenerator is in parallel with condenser; The outlet of described evaporimeter is connected with compressor.
2, according to the evaporating type condensing hot and cold water unit of the described band recuperation of heat of claim 1, it is characterized in that described heat regenerator also is connected with hot water circulation loop.
According to the evaporating type condensing hot and cold water unit of the described band recuperation of heat of claim 1, it is characterized in that 3, described evaporimeter also is connected with the chilled water closed circuit.
According to the evaporating type condensing hot and cold water unit of the described band recuperation of heat of claim 1, it is characterized in that 4, described evaporimeter is dry-expansion shell and tube evaporator, full-liquid type shell-tube evaporator, bushing type evaporimeter, falling film evaporation formula evaporimeter or brazing-sheet type evaporimeter.
5, according to the evaporating type condensing hot and cold water unit of the described band recuperation of heat of claim 1, it is characterized in that described heat regenerator is dry type case tube heat exchanger, full-liquid type case tube heat exchanger, fin-tube heat exchanger, double pipe heat exchanger, falling film evaporation formula heat exchanger or brazing plate type heat exchanger.
According to the evaporating type condensing hot and cold water unit of the described band recuperation of heat of claim 1, it is characterized in that 6, described compressor is Scroll-type compressor, screw compressor or centrifugal compressor.
According to the evaporating type condensing hot and cold water unit of the described band recuperation of heat of claim 1, it is characterized in that 7, described expansion valve is internal and external equilibrium formula heating power expansion valve or electronic expansion valve.
According to the evaporating type condensing hot and cold water unit of the described band recuperation of heat of claim 1, it is characterized in that 8, described condenser is coil pipe evaporative condenser or tube-plate evaporative condensing device.
9, according to the evaporating type condensing hot and cold water unit of claim 1 or 5 described band recuperations of heat, it is characterized in that, described heat regenerator and condenser are connected in series, and when heat regenerator is the full-liquid type shell-tube evaporator, described heat regenerator is provided with the fluid level controller that is used to control liquid level, the fluid level controller two ends are respectively equipped with the copper ball valve, and wherein the pipeline that is connected with reservoir of an end copper ball valve is provided with magnetic valve.
According to the evaporating type condensing hot and cold water unit of the described band recuperation of heat of claim 1, it is characterized in that 10, the port of export of described reservoir is provided with liquid-sighting glass and condensing pressure controller successively; The import and export two ends of described dry filter bucket are respectively equipped with the copper ball valve.
CN200920053941U 2009-04-03 2009-04-03 Evaporative condensed water cooling and heating unit with heat recoverer Expired - Lifetime CN201392050Y (en)

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Application Number Priority Date Filing Date Title
CN200920053941U CN201392050Y (en) 2009-04-03 2009-04-03 Evaporative condensed water cooling and heating unit with heat recoverer

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103234301A (en) * 2013-04-25 2013-08-07 广东美的电器股份有限公司 Air conditioner heat exchange system and control method thereof
CN104075510A (en) * 2013-03-27 2014-10-01 约克(无锡)空调冷冻设备有限公司 Part heat recovery air conditioning unit and refrigerant control method thereof
CN107014015A (en) * 2017-05-02 2017-08-04 浙江国祥股份有限公司 Recovery type heat evaporating condensation type handpiece Water Chilling Units

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075510A (en) * 2013-03-27 2014-10-01 约克(无锡)空调冷冻设备有限公司 Part heat recovery air conditioning unit and refrigerant control method thereof
CN104075510B (en) * 2013-03-27 2016-11-09 约克(无锡)空调冷冻设备有限公司 Part heat recovery air conditioner unit and refrigerant control method thereof
CN103234301A (en) * 2013-04-25 2013-08-07 广东美的电器股份有限公司 Air conditioner heat exchange system and control method thereof
CN107014015A (en) * 2017-05-02 2017-08-04 浙江国祥股份有限公司 Recovery type heat evaporating condensation type handpiece Water Chilling Units
CN107014015B (en) * 2017-05-02 2018-08-10 浙江国祥股份有限公司 Recovery type heat evaporating condensation type handpiece Water Chilling Units

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Granted publication date: 20100127