CN106568194A - Carbon dioxide trans-critical cycle heat pump type hot water system, and heating method of the same - Google Patents
Carbon dioxide trans-critical cycle heat pump type hot water system, and heating method of the same Download PDFInfo
- Publication number
- CN106568194A CN106568194A CN201610908086.7A CN201610908086A CN106568194A CN 106568194 A CN106568194 A CN 106568194A CN 201610908086 A CN201610908086 A CN 201610908086A CN 106568194 A CN106568194 A CN 106568194A
- Authority
- CN
- China
- Prior art keywords
- heat
- pipeline
- outlet
- heat exchanger
- carbon dioxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a carbon dioxide trans-critical cycle heat pump type hot water system, and a heating method of the same. The carbon dioxide trans-critical cycle heat pump type hot water system includes a finned tube evaporator, a heat regenerator, a compressor, a refrigerant-water telescopic heat exchanger, a throttle valve, a finned tube heat exchanger, a heat preservation water tank and a water supply pump, wherein an outlet of the finned tube evaporator is connected with a first inlet of the heat regenerator through a pipeline; a first outlet of the heat regenerator is connected with the compressor through the pipeline; an outlet of the compressor is connected with a first inlet of the refrigerant-water telescopic heat exchanger through the pipeline; a first outlet of the refrigerant-water telescopic heat exchanger is connected with a second inlet of the heat regenerator through the pipeline; a second outlet of the heat regenerator is connected with an inlet of the throttle valve through the pipeline; and an outlet of the throttle valve is connected with an inlet of the finned tube evaporator through the pipeline. The carbon dioxide trans-critical cycle heat pump type hot water system can reduce the adverse influence of heat extraction of subway on the surrounding environment, and can improve the utilization rate of energy.
Description
Technical field
The present invention relates to a kind of heat pump type hot water's system and heating means, more particularly to one kind can be prepared using waste heat from subway
The carbon dioxide trans-critical cycle heat pump type hot water system of domestic hot-water and its heating means, belong to field of heat exchange.
Background technology
Subway carries the huge volume of the flow of passengers daily as the important public transport in city.Train, air-conditioning, illumination,
The operation of elevator and other equipment consumes huge electric energy daily, and the generating of China generates electricity mainly by burning coal, generating efficiency
The fossil fuel powers such as not high and burning coal, oil will necessarily aggravate environmental problem and increase the discharge of carbon.But it is existing
In metro operation, the utilization rate of the energy is not high, and the radiating of subway is discharged into surrounding in vain and is further exacerbated by heat island effect
Should.
There are service trade and the business of prosperity around subway station, thus need a large amount of hot water daily, but be prepared by conventional hot water
Mainly pass through direct electro heating, fire coal, gas heating.The high-grade energy of this mode goes to heat low-grade hot water mode
It is the significant wastage to the energy, while a large amount of burning coals can cause serious environmental problem.
During the operation of subway station, cooling tower and heat extraction air port are constantly by exhaust of hot air to surrounding.In-orbit row area leads to
Special exhaust fan is crossed, Nei Wenduda 33 DEG C or so of hot blasts in tunnel are discharged into into outdoor air by heat extraction air port.Subway
During operation, thermic load is discharged into surrounding by cooling tower and heat extraction air port, and this had both caused the waste of the energy, also exacerbates city
City's tropical island effect, the life to urbanite cause puzzlement.So if being used to subway station heat extraction, system can be reduced just
The energy that standby hot water needs, it will realize good economy, environmental benefit and social benefit.
Carbon dioxide, as a kind of natural refrigerants, from the point of view of the impact to environment (ODP=0, GPD=1), is environment
Friendly refrigeration working medium, also with many unique advantages.The many such as environment, wide material sources are not endangered as carbon dioxide has
Excellent characteristic, is more and more paid close attention to by people, and is described as " cold-producing medium of 21 century most prospect ".
From freon unlike the heat pump of working medium, it is cold that condenser is referred to as gas to carbon dioxide trans-critical cycle heat pump
But device, in CO 2 cross-critical exothermic process, temperature glide is very big and discharge substantial amounts of heat, is adapted with temperature-variable heat source, is
Special Lorenz circulation, this feature are suitable for the hot water for providing higher temperature.
The content of the invention
It is an object of the invention to a kind of carbon dioxide trans-critical cycle heat pump type hot water system is proposed, to reduce subway row
Harmful effect of the heat to surrounding, there is provided the utilization rate of the energy.
The technical solution adopted in the present invention：A kind of carbon dioxide trans-critical cycle heat pump type hot water system, including fin
Tubular evaparator, regenerator, compressor, coolant-water jacket pipe heat exchanger, choke valve, fin-tube heat exchanger, attemperater
And feed pump；Finned tube evaporator outlet is connected with the regenerator first entrance by pipeline, the regenerator the
One outlet is connected with the suction port of compressor by pipeline, and the compressor outlet passes through pipeline and the coolant-water jacket tubular type
Heat exchanger first entrance connects, and the coolant-water jacket pipe heat exchanger first outlet is entered with the regenerator second by pipeline
Mouth connection, the regenerator second outlet are connected with the throttling valve inlet by pipeline, and the throttling valve outlet port is by pipeline
It is connected with the finned tube evaporator entrance；The fin-tube heat exchanger outlet is by pipeline and the coolant-jacket pipe
Formula heat exchanger second entrance connects, and the coolant-water jacket pipe heat exchanger second outlet is entered with the attemperater by pipeline
Mouth connection, the attemperater outlet are connected with the feed pump by pipeline.
Preferably, electric heater is provided with the attemperater.
Preferably, the finned tube evaporator is arranged at waste heat from subway air port.
Preferably, the fin-tube heat exchanger is arranged at subway cooling tower exhaust outlet.
Preferably, the feed pump is connected with user's water heater by pipeline.
Preferably, the finned tube evaporator, fin-tube heat exchanger and coolant-water jacket pipe heat exchanger is adopted
Counter-flow heat exchange.
Preferably, the pipeline outer surface is enclosed with insulation material.
A kind of heating means of carbon dioxide trans-critical cycle heat pump type hot water system, the finned tube evaporator is from ground
In ferrum heat extraction air port absorb heat and by heat transmission to regenerator after, by compressor by heat air work compress so as to
Be changed into the gas of High Temperature High Pressure, and heat transfer is carried out in coolant-water jacket pipe heat exchanger, by being back to regenerator after heat release,
And liquid is returned to finned tube evaporator through choke valve；Meanwhile, heat of the fin-tube heat exchanger by absorption cooling tower thermal wind exhausting
Amount, realizes the preheating to municipal water supply, and the municipal water supply after preheating flows through coolant-water jacket pipe heat exchanger, will using compressor
Heat air work compresses, and the gas for becoming High Temperature High Pressure carries out heat transfer predetermined temperature is heated to municipal water supply, heats
User's water heater is pumped into during hot water afterwards is transported to attemperater and by supplying water.
Compared with prior art, the invention has the beneficial effects as follows：The carbon dioxide trans-critical cycle pump type heat heat of the present invention
Water system, the finned tube evaporator of the system are arranged at waste heat from subway air port, absorb the heat of waste heat from subway, the row of reducing
Hot temperature；The fin-tube heat exchanger is arranged at municipal water supply subway cooling tower exhaust outlet, absorbs cooling tower heat extraction air
Heat, reduce air themperature, the municipal water supply after preheating by coolant-water jacket pipe heat exchanger, in coolant-water jacket tubular type
In heat exchanger, municipal water supply is heated to the temperature of demand；The system adopts carbon dioxide as cold-producing medium, environment friendly and pollution-free；This
Systemic absorption waste heat from subway, improves the utilization rate of the energy, while reducing rejection temperature, slows down urban heat land effect.
Description of the drawings
Fig. 1 is a kind of structural representation of carbon dioxide trans-critical cycle heat pump type hot water system of the invention.
Structural representations of the Fig. 2 for carbon dioxide trans-critical cycle heat pump type hot water's system of the embodiment of the present invention one.
Specific embodiment
Technical scheme is further illustrated with reference to specific embodiment.
Embodiment one
A kind of as shown in Figure 1-2, carbon dioxide trans-critical cycle heat pump type hot water system, including finned tube evaporator 5,
Regenerator 4, compressor 1, coolant-water jacket pipe heat exchanger 2, choke valve 3, fin-tube heat exchanger 6, attemperater 7 and water supply
Pump 8；The outlet of the finned tube evaporator 5 is connected with 4 first entrance of the regenerator by pipeline, the regenerator 4 first
Outlet is connected with 1 entrance of the compressor by pipeline, and the outlet of the compressor 1 is by pipeline and the coolant-water jacket tubular type
2 first entrance of heat exchanger connects, and the coolant -2 first outlet of water jacket pipe heat exchanger is by pipeline and the regenerator 4 the
Two entrances connect, and 4 second outlet of the regenerator is connected with 3 entrance of the choke valve by pipeline, and the outlet of the choke valve 3 is logical
Cross pipeline to be connected with 5 entrance of the finned tube evaporator；The outlet of the fin-tube heat exchanger 6 is cold with described by pipeline
Matchmaker -2 second entrance of water jacket pipe heat exchanger connection, the coolant -2 second outlet of water jacket pipe heat exchanger pass through pipeline and institute
The connection of 7 entrance of attemperater is stated, the outlet of the attemperater 7 is connected with the feed pump 8 by pipeline.
In the concrete technical scheme of the present invention, in the attemperater 7, electric heater 10, the fin tube type are provided with
Vaporizer 5 is arranged at waste heat from subway air port, and the fin-tube heat exchanger 6 is arranged at subway cooling tower exhaust outlet, described
Feed pump 8 is connected with user's water heater 9 by pipeline, the finned tube evaporator 5, fin-tube heat exchanger 6 and cold
Matchmaker-water jacket pipe heat exchanger 2 adopts counter-flow heat exchange, the pipeline outer surface to be enclosed with insulation material.
A kind of heating means of carbon dioxide trans-critical cycle heat pump type hot water system, the finned tube evaporator 5 from
In waste heat from subway air port 12 absorb heat and by heat transmission to regenerator 4 after, by compressor 1 by heat air work compress
Become high temperature and high pressure gas and heat transfer is carried out in coolant-water jacket pipe heat exchanger 2, by being back to regenerator 4 after heat release,
And liquid is returned to finned tube evaporator 5 through choke valve 3；Meanwhile, fin-tube heat exchanger 6 is by absorbing 11 thermal wind exhausting of cooling tower
Heat, realize preheating to municipal water supply, the municipal water supply after preheating flows through coolant-water jacket pipe heat exchanger 2, using pressure
Heat air work is compressed by contracting machine 1, and the gas for becoming High Temperature High Pressure carries out heat transfer predetermined temperature is heated to municipal water supply
Degree, is transported to user's water heater 9 during the hot water after heating is transported to attemperater 7 and by feed pump 8.
, when specifically used, in the carrying out practically of the system, finned tube evaporator 5 is from waste heat from subway air port for the present invention
In 12 absorb heat and by heat transmission to regenerator 4 after, by compressor 1 by heat air work compression become High Temperature High Pressure
Gas simultaneously carries out heat transfer in coolant-water jacket pipe heat exchanger 2, by being back to internal exchanger after heat release, and through throttling
Valve 3 returns liquid to finned tube evaporator 5；Meanwhile, heat of the fin-tube heat exchanger 6 by absorption 11 thermal wind exhausting of cooling tower is real
The now preheating to municipal water supply, the municipal water supply after preheating flow through coolant-water jacket pipe heat exchanger 2, using compressor 1 by heat
Amount air work compression becomes high temperature and high pressure gas and carries out heat transfer to be heated to municipal water supply predetermined temperature, the heat after heating
User's water heater 9 is transported to during water is transported to attemperater 7 and by feed pump 8.
When specifically used, the working medium end entrance for inside having the finned tube evaporator 5 of carbon dioxide connects pressure to the present invention
The high-pressure mouth of contracting machine 1, working medium bring out the high-pressure gaseous carbon dioxide of mouth discharge and sequentially pass through：(a) regenerator 4, and in regenerator 4
The gaseous carbon dioxide that High Temperature High Pressure occurs is exchanged heat with low-temp low-pressure liquid carbon dioxide, the gaseous state titanium dioxide of High Temperature High Pressure
Carbon heat release, the liquid carbon dioxide endothermic process of low-temp low-pressure；(b) choke valve 3, and there is the gas of High Temperature High Pressure in choke valve 3
State carbon dioxide becomes low-temp low-pressure liquid carbon dioxide process；(c) finned tube evaporator 5, and in finned tube evaporator 5
There is the process of the heat of the liquid carbon dioxide absorption waste heat from subway of low-temp low-pressure；(d) regenerator 4, and occur in regenerator 4
The gaseous carbon dioxide of High Temperature High Pressure becomes to be carried out exchanging heat, eventually enters into 1 low pressure port of compressor with low-temp low-pressure liquid carbon dioxide
Process.
Wherein, pipeline of the pipeline for carbon dioxide working medium circulation, the colling end of coolant-water jacket pipe heat exchanger 2 lead to
What is crossed is the municipal water supply for needing heating, and municipal water supply is connected municipal administration with attemperater 7 by water pipe.First, municipal water supply leads to
Fin-tube heat exchanger 6 is crossed, the municipal water supply of low temperature passes through fin-tube heat exchanger 6, with 11 high temperature air exhaust heat exchange of cooling tower, reality
The now preheating to municipal water supply；Secondly the municipal water supply after preheating passes through coolant-water jacket pipe heat exchanger 2 and carbon dioxide work
Matter is exchanged heat, heating of the realization to municipal water supply, and is heated to the temperature requirement of supplying hot water, and the municipal water supply stream after heating is arrived
Attemperater 7；Finally by feed pump 8 by the delivery of attemperater 7 to user.
Wherein, carbon dioxide is changed with water through being discharged to coolant-waterpipe type heat exchanger in the presence of compressor 1
Heat, then passes sequentially through regenerator 4, choke valve 3, is arranged on the realization absorption of finned tube evaporator 5 in waste heat from subway air port 12
Heat in waste heat from subway wind, completes one cycle by regenerator 4 and compressor 1.
Wherein, municipal water supply is realized to municipal administration through the fin-tube heat exchanger 6 by being arranged on 11 exhaust outlet of cooling tower
The preheating of water supply, the municipal water supply after preheating is through by coolant-waterpipe type heat exchanger, realizing that heating meets life need again
Attemperater 7 is flowed into after asking, the hot water in attemperater 7 is transported to user's water heater 9 by feed pump 8.
For a person skilled in the art, technical scheme that can be as described above and design, make other each
Plant corresponding change and deform, and all these changes and deforms the protection model that should all belong to the claims in the present invention
Within enclosing.
Claims (8)
1. a kind of carbon dioxide trans-critical cycle heat pump type hot water system, it is characterised in that：Including finned tube evaporator, backheat
Device, compressor, coolant-water jacket pipe heat exchanger, choke valve, fin-tube heat exchanger, attemperater and feed pump；The wing
Finned pipe type evaporator outlet be connected with the regenerator first entrance by pipeline, the regenerator first outlet pass through pipeline and
The suction port of compressor connection, the compressor outlet are connected with the coolant-water jacket pipe heat exchanger first entrance by pipeline
Connect, the coolant-water jacket pipe heat exchanger first outlet is connected with the regenerator second entrance by pipeline, the backheat
Device second outlet is connected with the throttling valve inlet by pipeline, and the throttling valve outlet port is steamed with the fin tube type by pipeline
Send out the connection of device entrance；The fin-tube heat exchanger outlet is by pipeline and the coolant-water jacket pipe heat exchanger second entrance
Connection, the coolant-water jacket pipe heat exchanger second outlet are connected with the attemperater entrance by pipeline, the insulation
Tank outlet is connected with the feed pump by pipeline.
2. a kind of carbon dioxide trans-critical cycle heat pump type hot water system according to claim 1, it is characterised in that：It is described
Electric heater is provided with attemperater.
3. a kind of carbon dioxide trans-critical cycle heat pump type hot water system according to claim 1, it is characterised in that：It is described
Finned tube evaporator is arranged at waste heat from subway air port.
4. a kind of carbon dioxide trans-critical cycle heat pump type hot water system according to claim 1, it is characterised in that：It is described
Fin-tube heat exchanger is arranged at subway cooling tower exhaust outlet.
5. a kind of carbon dioxide trans-critical cycle heat pump type hot water system according to claim 1, it is characterised in that：It is described
Feed pump is connected with user's water heater by pipeline.
6. a kind of carbon dioxide trans-critical cycle heat pump type hot water system according to claim 1, it is characterised in that：It is described
Finned tube evaporator, fin-tube heat exchanger and coolant-water jacket pipe heat exchanger adopts counter-flow heat exchange.
7. a kind of carbon dioxide trans-critical cycle heat pump type hot water system according to claim 1, it is characterised in that：It is described
Pipeline outer surface is enclosed with insulation material.
8. the heating side according to a kind of arbitrary described carbon dioxide trans-critical cycle heat pump type hot water system of claim 1-7
Method, it is characterised in that：The finned tube evaporator absorbs heat and by heat transmission from waste heat from subway air port to regenerator
Afterwards, heat air work is compressed by compressor so as to be changed into the gas of High Temperature High Pressure, and in coolant-water jacket pipe type heat transfer
Device carries out heat transfer, by being back to regenerator after heat release, and returns liquid to finned tube evaporator through choke valve；Meanwhile, wing
Heat of the Flat-tube type heat-exchanger by absorption cooling tower thermal wind exhausting, realizes the preheating to municipal water supply, the municipal water supply after preheating
Coolant-water jacket pipe heat exchanger is flowed through, heat air work is compressed using compressor, the gas for becoming High Temperature High Pressure is carried out
Heat transfer is heated to predetermined temperature to municipal water supply, during the hot water after heating is transported to attemperater and defeated by feed pump
It is sent to user's water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908086.7A CN106568194A (en) | 2016-10-17 | 2016-10-17 | Carbon dioxide trans-critical cycle heat pump type hot water system, and heating method of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908086.7A CN106568194A (en) | 2016-10-17 | 2016-10-17 | Carbon dioxide trans-critical cycle heat pump type hot water system, and heating method of the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106568194A true CN106568194A (en) | 2017-04-19 |
Family
ID=58533799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610908086.7A Pending CN106568194A (en) | 2016-10-17 | 2016-10-17 | Carbon dioxide trans-critical cycle heat pump type hot water system, and heating method of the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106568194A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388614A (en) * | 2017-09-15 | 2017-11-24 | 广东纽恩泰新能源科技发展有限公司 | A kind of carbon dioxide heat-pump circulation loop |
| CN108180666A (en) * | 2018-01-31 | 2018-06-19 | 天津商业大学 | CO is subcooled in a kind of non-azeotropic working medium mechanical-assisted2Cooling and warming integral system |
| CN108180667A (en) * | 2018-01-31 | 2018-06-19 | 天津商业大学 | CO is subcooled in a kind of mechanical-assisted2Trans-critical cycle cooling and warming integral system |
| CN111981685A (en) * | 2020-07-21 | 2020-11-24 | 深圳朴坂科技有限公司 | Refrigeration type hot water unit using natural energy to generate electricity |
| CN113188253A (en) * | 2021-04-25 | 2021-07-30 | 温宝鸿 | Reverse folding type air energy water heating system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141316A (en) * | 1999-11-17 | 2001-05-25 | Sanden Corp | Control mechanism for co2 refrigerating circuit |
| JP2005069608A (en) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Works Ltd | Hot water utilizing system |
| CN202868983U (en) * | 2012-10-18 | 2013-04-10 | 江苏苏净集团有限公司 | Energy-saving type multi-source carbon dioxide hot pump hot water unit |
| CN104697165A (en) * | 2015-03-26 | 2015-06-10 | 广东美的暖通设备有限公司 | Water heater |
| CN205047261U (en) * | 2015-10-26 | 2016-02-24 | 华北理工大学 | Critical CO2 heat pump and rankine cycle's coupled system strides based on waste heat recovery |
-
2016
- 2016-10-17 CN CN201610908086.7A patent/CN106568194A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141316A (en) * | 1999-11-17 | 2001-05-25 | Sanden Corp | Control mechanism for co2 refrigerating circuit |
| JP2005069608A (en) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Works Ltd | Hot water utilizing system |
| CN202868983U (en) * | 2012-10-18 | 2013-04-10 | 江苏苏净集团有限公司 | Energy-saving type multi-source carbon dioxide hot pump hot water unit |
| CN104697165A (en) * | 2015-03-26 | 2015-06-10 | 广东美的暖通设备有限公司 | Water heater |
| CN205047261U (en) * | 2015-10-26 | 2016-02-24 | 华北理工大学 | Critical CO2 heat pump and rankine cycle's coupled system strides based on waste heat recovery |
Non-Patent Citations (1)
| Title |
|---|
| 王永镖，李炳熙: "地铁排热回收热泵系统的技术经济性分析", 《沈阳工程学院学报（自然科学版）》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388614A (en) * | 2017-09-15 | 2017-11-24 | 广东纽恩泰新能源科技发展有限公司 | A kind of carbon dioxide heat-pump circulation loop |
| CN108180666A (en) * | 2018-01-31 | 2018-06-19 | 天津商业大学 | CO is subcooled in a kind of non-azeotropic working medium mechanical-assisted2Cooling and warming integral system |
| CN108180667A (en) * | 2018-01-31 | 2018-06-19 | 天津商业大学 | CO is subcooled in a kind of mechanical-assisted2Trans-critical cycle cooling and warming integral system |
| CN111981685A (en) * | 2020-07-21 | 2020-11-24 | 深圳朴坂科技有限公司 | Refrigeration type hot water unit using natural energy to generate electricity |
| CN113188253A (en) * | 2021-04-25 | 2021-07-30 | 温宝鸿 | Reverse folding type air energy water heating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106568194A (en) | Carbon dioxide trans-critical cycle heat pump type hot water system, and heating method of the same | |
| CN102003833B (en) | Transcritical carbon dioxide heat pump type air conditioning water heater using condensation residual heat | |
| CN105042931A (en) | Combined heat pump system adopting trans-critical circulation and absorption heat pump co-production | |
| CN101975428A (en) | Air-cooling thermotube-type machine room air-conditioning system | |
| CN201964501U (en) | Thermal pump heating system utilizing latent heat progressively | |
| CN105004095B (en) | A kind of trans critical cycle and the combined heat-pump system of two-stage absorption heat pump coproduction | |
| CN203024477U (en) | Ground source heat pump central air-conditioning hot water triple-generation unit | |
| CN201421162Y (en) | Air conditioner total heat recovery system | |
| CN206131515U (en) | A air -cooled absorbed refrigeration machine for car | |
| CN205783983U (en) | The heat high efficiente callback device of air source handpiece Water Chilling Units | |
| CN102494439B (en) | Photovoltaic photo-thermal energy-storage heat pump system | |
| CN204830120U (en) | Carbon dioxide heat pump heating device | |
| CN203848548U (en) | Multipurpose air source heat pump unit | |
| CN206330196U (en) | CO2 net for air-source heat pump units | |
| CN203837330U (en) | CO2 heat pump heat exchange enthalpy increase device | |
| CN203771792U (en) | Evaporative air source trigeneration heat pump | |
| CN206094279U (en) | Slaughterhouse is with multistage full heat recovery hot water system of refrigerating unit | |
| CN209819646U (en) | Large-temperature-difference heating heat exchanger, heat exchange system and thermoelectric heating system using same | |
| CN204757206U (en) | Outer machine of air conditioner and air conditioner hot water all -in -one with heat supply water function | |
| CN201014679Y (en) | Air conditioner with heat pump water heater function | |
| CN200986311Y (en) | Double system air conditioner heat pump water heater | |
| CN103411342B (en) | Solar high-efficient spraying and cooling system | |
| CN207778862U (en) | A kind of solar air source double-source heat pump unit | |
| CN207649106U (en) | One kind carrying efficient Multifunctional heat pump water heater | |
| CN201866992U (en) | Trans-critical carbon dioxide heat pump type air conditioning water heater utilizing residual condensing heat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170419 |
|
| WD01 | Invention patent application deemed withdrawn after publication |