CN109357403A - Carbon dioxide air source water heater - Google Patents
Carbon dioxide air source water heater Download PDFInfo
- Publication number
- CN109357403A CN109357403A CN201811196326.0A CN201811196326A CN109357403A CN 109357403 A CN109357403 A CN 109357403A CN 201811196326 A CN201811196326 A CN 201811196326A CN 109357403 A CN109357403 A CN 109357403A
- Authority
- CN
- China
- Prior art keywords
- import
- outlet
- compressor
- regenerator
- expansion valve
- 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
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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
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
Abstract
The present invention relates to a kind of carbon dioxide air source water heaters, it includes compressor, gas cooler, regenerator, first expansion valve, evaporator, economizer, second expansion valve, compressor is air injection enthalpy-increasing double-stage compressor, the first import of compressor is provided on compressor, the second import of compressor, compressor outlet, compressor, gas cooler, economizer, regenerator, first expansion valve, evaporator is connected in turn, it constitutes carbon dioxide air source water heater extraction cycle and utilizes system, carbon dioxide air source water heater of the invention passes through economizer, the reasonably combined and arrangement of the components such as regenerator, improve the system effectiveness and reliability entirely recycled, improve the stability in use of equipment.
Description
Technical field
The present invention relates to technical field of water heaters, especially a kind of carbon dioxide air source water heater.
Background technique
Since carbon dioxide is easy to acquire, greenhouse effects are low, nontoxic non-ignitable, cheap and CO 2 cross-critical
The exothermic process of circulation can match with temperature-variable heat source, recycle closer to Lao Lunzi, can get higher energy consumption efficiency, dioxy
Changing carbon air source water heater is exactly by carbon dioxide as hot medium is passed, so more next welcomed by the people.
Currently, carbon dioxide air source water heater includes compressor, gas cooler, regenerator, expansion valve, evaporator,
Compressor is connected with gas cooler, and gas cooler is connected with regenerator, regenerator be connected with expansion valve after with steaming
Device connection is sent out, the outlet of evaporator passes through again after pipeline is connect with regenerator to be connected with compressor again.It is constituted with upper-part
Carbon dioxide air source water heater extraction cycle utilizes system, the specific workflow of the system are as follows: the gas-liquid two of low-temp low-pressure
Phase carbon dioxide enters from the import of evaporator, is formed with certain temperature after carrying out heat exchange with external environment in evaporator
The carbon dioxide gas of low pressure, the carbon dioxide gas of the low pressure of certain temperature enter compressor after tentatively heating in regenerator
In, the high temperature and pressure carbon dioxide gas after compressor pressurizes enters in gas cooler, passes through heat in gas cooler
After exchange, cold water is heated into hot water for users to use, the carbon dioxide gas after exchange enters back into regenerator with steaming
It sends out the carbon dioxide gas come out in device and carries out heat exchange, it is complete into evaporator after carbon dioxide is cooled down by expansion valve again
At the recycling of water heater.Although setting can make resource obtain certain abundant use in this way, due to passing through gas cooling
The carbon dioxide temperature of device is also higher, is directly entered the carbon dioxide gas heat exchange come out in same evaporator in regenerator
When, the carbon dioxide gas temperature for causing entry into compressor is higher, and the air outlet temperature of compressor also significantly increases, and seriously affects pressure
The reliability service of contracting machine.Meanwhile in whole system, only passes through regenerator by the carbon dioxide of gas cooler and expansion valve will
Temperature is down to external environment hereinafter, the amplitude to cool down every time is larger, the irreversible loss of heat is increased, to regenerator and expansion
Valve it is more demanding, also influence both use, reduce entire water heater using stability.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of carbon dioxide air source water heaters that stability in use is high.
The present invention solves carbon dioxide air source water heater used by its technical problem, including compressor, gas cooling
Device, regenerator, the first expansion valve, evaporator, be provided on gas cooler the first import of cooler, the second import of cooler,
Cooler first outlet, cooler second outlet, the first import of cooler and cooler first outlet are interconnected, cooler the
Two imports and cooler second outlet are interconnected；
The first import of regenerator, the second import of regenerator, regenerator first outlet, regenerator second are provided on regenerator
Outlet, the first import of regenerator and regenerator first outlet are interconnected, the second import of regenerator and regenerator second outlet phase
It is intercommunicated；
The first expansion valve import, the first expansion valve outlet are provided on first expansion valve；
Evaporator, evaporator outlet are provided on evaporator, regenerator first outlet and the first expansion valve import are logical
Piping is connected, and the first expansion valve outlet is connected with evaporator by pipeline, evaporator outlet and regenerator second
Import is connected by pipeline, further includes economizer, the second expansion valve, and compressor is air injection enthalpy-increasing double-stage compressor, compressor
On be provided with the first import of compressor, the second import of compressor, compressor outlet；
The first import of economizer, the second import of economizer, economizer first outlet, economizer second are provided on economizer
Outlet, the first import of economizer and economizer first outlet are interconnected, the second import of economizer and economizer second outlet phase
It is intercommunicated；
The second expansion valve import, the second expansion valve outlet are provided on second expansion valve；
It is provided with triple valve on pipeline between regenerator first outlet and the first expansion valve import, is provided on triple valve
Triple valve first interface, triple valve second interface, triple valve third interface, regenerator first outlet and triple valve first interface are logical
Piping is connected, and the first expansion valve import is connected with triple valve second interface by pipeline；
Cooler first outlet is connected with the first import of economizer by pipeline, economizer first outlet and regenerator the
One import is connected by pipeline；
Second expansion valve import is connected with triple valve third interface by pipeline, the second expansion valve outlet and economizer the
Two imports are connected by pipeline, and economizer second outlet is connected with the second import of compressor by pipeline；
Regenerator second outlet is connected with the first import of compressor by pipeline, compressor outlet and cooler first into
Mouth is connected by pipeline.
Further, the first expansion valve is the electric expansion valve of adjustable aperture.
Further, the second expansion valve is the electric expansion valve of adjustable aperture.
Further, being provided with the first gas-liquid point on pipeline between the first import of regenerator second outlet and compressor
From device.
Further, being provided with the second gas-liquid point on pipeline between the second import of economizer second outlet and compressor
From device.
The beneficial effects of the present invention are: the present invention is by setting economizer, carbon dioxide gas from gas cooler the
After one outlet comes out, after the heat exchange cooling for passing sequentially through economizer, regenerator, then pass through the throttling decrease temperature and pressure of the first expansion valve
To ambient temperature hereinafter, reducing the amplitude to cool down every time, the requirement to equipment, especially the first expansion valve are reduced
Throttling cooling, reduces the thermal loss of throttling, improves the stability in use of equipment.Since the heat exchange for first passing through economizer is cold
But, cooling in the heat exchange by regenerator, in the heat transfer process of regenerator, make the carbon dioxide into the first import of compressor
Temperature rise is unlikely to excessively high, reduces the gas temperature into the carbon dioxide of compressor, also reduces the temperature of compressor outlet,
The temperature that is to say compressor improves the stability in use of compressor.
Compressor of the invention is air injection enthalpy-increasing double-stage compressor, which is by low-temp low-pressure
Carbon dioxide gas obtains the carbon dioxide gas of high temperature and pressure after two second compressions, and first compresses the dioxy of low-temp low-pressure
Change the carbon dioxide that carbon pressure shortens medium temperature and medium pressure into, the pressurized carbon dioxide of medium temperature and medium pressure is shortened into the gas of high temperature and pressure by the second compression
Body, air injection enthalpy-increasing double-stage compressor of the present invention include the first import of compressor, the second import of compressor, and the second import of compressor is set
Set after the first second compression of compressor, before the second second compression, from the second import of compressor enter carbon dioxide gas with
It is further risen after first compressed carbon dioxide gas mixing and carries out the second second compression, and enter the dioxy of the second import of compressor
Changing carbon is after the heat exchange of economizer, regenerator is cooling, by the throttling decrease temperature and pressure of the second expansion valve, using economy
The heat exchange of device heats up, and temperature rise is also not very high, and the carbon dioxide temperature into the second import of compressor is lower than compressor for the first time
Carbon dioxide temperature after compression, then with after carbon dioxide mix after the first second compression, reduce the titanium dioxide in compressor
Carbon temperature further reduced the temperature of compressor outlet, that is to say the temperature of compressor, further improves compressor
Stability in use.
In conclusion carbon dioxide air source water heater of the invention rationally taking by components such as economizer, regenerators
Match and arrange, improves the system effectiveness and reliability entirely recycled, improve the stability in use of equipment.
Detailed description of the invention
Fig. 1 is frame principle of the present invention；
Components, position and number in figure: compressor 1, the first import of compressor 11, the second import of compressor 12, compression
Machine outlet 13, gas cooler 2, the first import of cooler 21, the second import of cooler 22, cooler first outlet 23, cooling
Device second outlet 24, regenerator 3, the first import of regenerator 31, the second import of regenerator 32, regenerator first outlet 33, backheat
Device second outlet 34, the first expansion valve 4, the first expansion valve import 41, the first expansion valve outlet 42, evaporator 5, evaporator
51, evaporator outlet 52, economizer 6, the first import of economizer 61, the second import of economizer 62, economizer first outlet 63, warp
Ji device second outlet 64, the second expansion valve 7, the second expansion valve import 71,72 first gas-liquid separator 8 of the second expansion valve outlet.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, carbon dioxide air source water heater of the present invention, including compressor 1, gas cooler 2, regenerator 3,
First expansion valve 4, evaporator 5 are provided with the first import of cooler 21, the second import of cooler 22, cooling on gas cooler 2
Device first outlet 23, cooler second outlet 24, the first import of cooler 21 and cooler first outlet 23 are interconnected, cooling
The second import of device 22 and cooler second outlet 24 are interconnected；
It is provided with the first import of regenerator 31 on regenerator 3, the second import of regenerator 32, regenerator first outlet 33, returns
Hot device second outlet 34, the first import of regenerator 31 and regenerator first outlet 33 are interconnected, the second import of regenerator 32 with
Regenerator second outlet 34 is interconnected；
The first expansion valve import 41, the first expansion valve outlet 42 are provided on first expansion valve 4；
Evaporator 51, evaporator outlet 52, regenerator first outlet 33 and the first expansion valve are provided on evaporator 5
Import 41 is connected by pipeline, and the first expansion valve outlet 42 is connected with evaporator 51 by pipeline, evaporator outlet
52 are connected with the second import of regenerator 32 by pipeline, further include economizer 6, the second expansion valve 7, and compressor 1 is jet increasing
Enthalpy double-stage compressor is provided with the first import of compressor 11, the second import of compressor 12, compressor outlet 13 on compressor 1；
The first import of economizer 61, the second import of economizer 62, economizer first outlet 63, warp are provided on economizer 6
Help device second outlet 64, the first import of economizer 61 and economizer first outlet 63 are interconnected, the second import of economizer 62 with
Economizer second outlet 64 is interconnected；
The second expansion valve import 71, the second expansion valve outlet 72 are provided on second expansion valve 7；
It is provided with triple valve on pipeline between regenerator first outlet 33 and the first expansion valve import 41, is set on triple valve
It is equipped with triple valve first interface, triple valve second interface, triple valve third interface, regenerator first outlet 33 and triple valve first
Interface is connected by pipeline, and the first expansion valve import 41 is connected with triple valve second interface by pipeline；
Cooler first outlet 23 is connected with the first import of economizer 61 by pipeline, economizer first outlet 63 with return
Hot the first import of device 31 is connected by pipeline；
Second expansion valve import 71 is connected with triple valve third interface by pipeline, the second expansion valve outlet 72 and economy
The second import of device 62 is connected by pipeline, and economizer second outlet 64 is connected with the second import of compressor 12 by pipeline；
Regenerator second outlet 34 is connected with the first import of compressor 11 by pipeline, compressor outlet 13 and cooler
First import 21 is connected by pipeline.
Gas cooler 2, regenerator 3, economizer 6 are all heat-exchange devices.Carbon dioxide air source hot water of the invention
Device extraction cycle utilizes working-flow are as follows: and the carbon dioxide of low-temp low-pressure enters in evaporator 5 from evaporator 51,
The carbon dioxide of the low pressure of certain temperature first passes through and enters in compressor 1 after regenerator 3 in evaporator 5, compressor 1 come out two
After carbonoxide sequentially enters gas cooler 2, economizer 6, regenerator 3, partial CO 2 enters the first expansion valve 4 and enters steaming
It sends out in device 5, another part enters in compressor 1 after the second expansion valve 7, economizer 6, and the circulation for completing water heater makes
With the flow direction of carbon dioxide is as shown by the arrows in Figure 1.
The present invention is come out by setting economizer 6, carbon dioxide gas from the cooler first outlet 23 of gas cooler 2
Afterwards, pass sequentially through economizer 6, regenerator 3 heat exchange it is cooling after, then pass through the throttling decrease temperature and pressure of the first expansion valve 4 to outside
Environment temperature reduces the requirement to equipment, the especially throttling of the first expansion valve 4 hereinafter, reduce the amplitude to cool down every time
Cooling, reduces the thermal loss of throttling, improves the stability in use of equipment.Since the heat exchange for first passing through economizer 6 is cooling,
It is cooling in the heat exchange by regenerator 3, in the heat transfer process of regenerator 3, make the titanium dioxide into the first import of compressor 11
Carbon temperature rise is unlikely to excessively high, reduces the gas temperature of the carbon dioxide into compressor 1, also reduces compressor outlet 13
Temperature that is to say the temperature of compressor 1, improve the stability in use of compressor 1.
Compressor 1 of the invention is air injection enthalpy-increasing double-stage compressor, which is by low-temp low-pressure
Carbon dioxide gas obtain the carbon dioxide gas of high temperature and pressure after two second compressions, the first compression is by the two of low-temp low-pressure
Carbonoxide is compressed into the carbon dioxide of medium temperature and medium pressure, and the pressurized carbon dioxide of medium temperature and medium pressure is shortened into the gas of high temperature and pressure by the second compression
Body, air injection enthalpy-increasing double-stage compressor of the present invention include the first import of compressor 11, the second import of compressor 12, compressor second into
Mouth 12 is arranged after 1 first second compression of compressor, before the second second compression, from the titanium dioxide of the entrance of the second import of compressor 12
Carbon gas further risen after being mixed with the first compressed carbon dioxide gas carry out the second second compression, and enter compressor second into
12 mouthfuls of carbon dioxide is cooled down by the throttling of the second expansion valve 7 and is dropped after the heat exchange of economizer 6, regenerator 3 is cooling
Pressure heats up using the heat exchange of economizer 6, and temperature rise is also not very high, makes the carbon dioxide temperature into the second import of compressor 12
Degree is reduced lower than carbon dioxide temperature after 1 first second compression of compressor, then with after carbon dioxide mix after the first second compression
Carbon dioxide temperature in compressor 1, further reduced the temperature of compressor outlet 13, that is to say the temperature of compressor 1,
Further improve the stability in use of compressor 1.
In conclusion carbon dioxide air source water heater of the invention passes through the reasonable of the components such as economizer 6, regenerator 3
Collocation and arrangement, improve the system effectiveness and reliability entirely recycled, improve the stability in use of equipment.
Specifically, first expansion valve 4 is the electronic expansion of adjustable aperture in order to realize that 13 temperature of compressor outlet is adjustable
Valve.Similarly, the second expansion valve 7 is the electric expansion valve of adjustable aperture, and it is swollen that 13 temperature of compressor outlet similarly passes through second
Swollen valve 7 is adjusted.
In order to guarantee that the carbon dioxide into compressor 1 is gas, the present invention is in regenerator second outlet 34 and compressor
The first gas-liquid separation 8 is provided on pipeline between first import 11.Similarly, economizer second outlet 64 and compressor second into
The second gas-liquid separator is provided on pipeline between mouth 12.
Claims (5)
1. carbon dioxide air source water heater, including compressor (1), gas cooler (2), regenerator (3), the first expansion valve
(4), evaporator (5) are provided with the first import of cooler (21), the second import of cooler (22), cooling on gas cooler (2)
Device first outlet (23), cooler second outlet (24), the first import of cooler (21) and cooler first outlet (23) are mutual
Connection, the second import of cooler (22) and cooler second outlet (24) are interconnected；
The first import of regenerator (31), the second import of regenerator (32), regenerator first outlet are provided on regenerator (3)
(33), regenerator second outlet (34), the first import of regenerator (31) and regenerator first outlet (33) are interconnected, regenerator
Second import (32) and regenerator second outlet (34) are interconnected；
The first expansion valve import (41), the first expansion valve outlet (42) are provided on first expansion valve (4)；
It is provided with evaporator (51), evaporator outlet (52) on evaporator (5), regenerator first outlet (33) and first swollen
Swollen valve import (41) is connected by pipeline, and the first expansion valve outlet (42) is connected with evaporator (51) by pipeline,
Evaporator outlet (52) is connected with the second import of regenerator (32) by pipeline, it is characterised in that: further include economizer (6),
Second expansion valve (7), compressor (1) are air injection enthalpy-increasing double-stage compressor, are provided with the first import of compressor on compressor (1)
(11), the second import of compressor (12), compressor outlet (13)；
The first import of economizer (61), the second import of economizer (62), economizer first outlet are provided on economizer (6)
(63), economizer second outlet (64), the first import of economizer (61) and economizer first outlet (63) are interconnected, economizer
Second import (62) and economizer second outlet (64) are interconnected；
The second expansion valve import (71), the second expansion valve outlet (72) are provided on second expansion valve (7)；
It is provided with triple valve on pipeline between regenerator first outlet (33) and the first expansion valve import (41), is set on triple valve
It is equipped with triple valve first interface, triple valve second interface, triple valve third interface, regenerator first outlet (33) and triple valve the
One interface is connected by pipeline, and the first expansion valve import (41) is connected with triple valve second interface by pipeline；
Cooler first outlet (23) is connected with the first import of economizer (61) by pipeline, economizer first outlet (63) with
The first import of regenerator (31) is connected by pipeline；
Second expansion valve import (71) is connected with triple valve third interface by pipeline, the second expansion valve outlet (72) and economy
The second import of device (62) is connected by pipeline, and economizer second outlet (64) passes through pipeline phase with the second import of compressor (12)
Connection；
Regenerator second outlet (34) is connected with the first import of compressor (11) by pipeline, compressor outlet (13) and cooling
The first import of device (21) is connected by pipeline.
2. carbon dioxide air source water heater as described in claim 1, it is characterised in that: the first expansion valve (4) is adjustable
The electric expansion valve of aperture.
3. carbon dioxide air source water heater as described in claim 1, it is characterised in that: the second expansion valve (7) is adjustable
The electric expansion valve of aperture.
4. carbon dioxide air source water heater as described in claim 1, it is characterised in that: regenerator second outlet (34) and pressure
The first gas-liquid separator (8) are provided on pipeline between the first import of contracting machine (11).
5. the carbon dioxide air source water heater as described in Claims 1-4 any one, it is characterised in that: economizer second
The second gas-liquid separator is provided on pipeline between outlet (64) and the second import of compressor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811196326.0A CN109357403A (en) | 2018-10-15 | 2018-10-15 | Carbon dioxide air source water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811196326.0A CN109357403A (en) | 2018-10-15 | 2018-10-15 | Carbon dioxide air source water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109357403A true CN109357403A (en) | 2019-02-19 |
Family
ID=65349403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811196326.0A Pending CN109357403A (en) | 2018-10-15 | 2018-10-15 | Carbon dioxide air source water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109357403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121342A (en) * | 2019-12-31 | 2020-05-08 | 青岛海信日立空调系统有限公司 | Heat pump system |
| WO2021218147A1 (en) * | 2020-04-28 | 2021-11-04 | 中车大连机车研究所有限公司 | Co2 refrigerant variable-frequency air conditioner for driver cab |
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| CN205843115U (en) * | 2016-07-27 | 2016-12-28 | 山东美琳达再生能源开发有限公司 | A kind of carbon dioxide heat pump device with heating function |
| CN106468476A (en) * | 2016-09-21 | 2017-03-01 | 杭州佳力斯韦姆新能源科技有限公司 | A kind of CO with double back thermal2Air source heat pump system |
| CN108120039A (en) * | 2016-11-27 | 2018-06-05 | 侴乔力 | The heat pump cycle of compressor Suck and exhaust pressure Fast-Balance after shutdown |
| CN207635644U (en) * | 2017-12-15 | 2018-07-20 | 三菱电机(广州)压缩机有限公司 | A kind of heat pump system |
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| JP2601972B2 (en) * | 1991-05-03 | 1997-04-23 | キャリア コーポレイション | Refrigeration circuit and method of controlling economizer in refrigeration circuit |
| CN1376251A (en) * | 1999-09-24 | 2002-10-23 | 三洋电机株式会社 | Multi-stage compression refrigerating device |
| CN2643252Y (en) * | 2003-06-18 | 2004-09-22 | 北京清源世纪科技有限公司 | Middle and high temperature powerdriven compressive heat pump equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121342A (en) * | 2019-12-31 | 2020-05-08 | 青岛海信日立空调系统有限公司 | Heat pump system |
| CN111121342B (en) * | 2019-12-31 | 2021-11-05 | 青岛海信日立空调系统有限公司 | Heat pump system |
| WO2021218147A1 (en) * | 2020-04-28 | 2021-11-04 | 中车大连机车研究所有限公司 | Co2 refrigerant variable-frequency air conditioner for driver cab |
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Application publication date: 20190219 |