CN203824164U - Overlapped type carbon dioxide air source heat pump - Google Patents
Overlapped type carbon dioxide air source heat pump Download PDFInfo
- Publication number
- CN203824164U CN203824164U CN201420186170.9U CN201420186170U CN203824164U CN 203824164 U CN203824164 U CN 203824164U CN 201420186170 U CN201420186170 U CN 201420186170U CN 203824164 U CN203824164 U CN 203824164U
- Authority
- CN
- China
- Prior art keywords
- heat pump
- heat
- temperature level
- carbon dioxide
- compressor
- 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.)
- Expired - Lifetime
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 27
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 5
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- PZZOEXPDTYIBPI-UHFFFAOYSA-N 2-[[2-(4-hydroxyphenyl)ethylamino]methyl]-3,4-dihydro-2H-naphthalen-1-one Chemical compound C1=CC(O)=CC=C1CCNCC1C(=O)C2=CC=CC=C2CC1 PZZOEXPDTYIBPI-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model relates to an overlapped type carbon dioxide air source heat pump. The heat pump comprises a low-temperature stage heating system and a high-temperature stage heating system, and the heat pump is formed by overlapping the two-stage heating systems; the low-temperature stage heating system and the high-temperature stage heating system are connected through a condensation evaporator or a plate type heat exchanger in an overlapping manner; the low-temperature stage working medium CO2 absorbs the heat in the external low-temperature environment and transmits the heat to the high-temperature stage working medium R22, the high-temperature stage working medium R22 is cooled by the using side water in a condenser, and the heat is transmitted to the used side water, and finally, the temperature of the used side water is increased to 45 DEG C; the heat pump provides heat for northern households through a fan coil unit or floor radiation. According to the overlapped type carbon dioxide air source heat pump, the heat pump can heat effectively under the condition that the temperature is -30 DEG C, and the machine set heating energy efficiency ratio is higher than 1.665.
Description
Technical field
The utility model relates to a kind of superposition type carbon dioxide air source heat pump, is a kind of air source heat pump that utilizes carbon dioxide cascade system to heat, and can under the operating mode of-30 ℃ of low temperature, efficiently heat.
Background technology
Cold water (heat pump) the unit > > of standard GB/T/T18430.1-2007 < < steam compression cycle cold water (heat pump) unit part 1 industry or business use and similar applications, the air source heat pump heating operation standard condition of cold water (heat pump) the unit > > regulation of GB/T18430.2-2007 < < steam compression cycle cold water (heat pump) unit part 2 family use and similar applications is 7 ℃ of environment temperatures, produce the hot water of 45 ℃, minimum environment temperature can be moved to-7 ℃, standard GB/T/T25127.1-2010 < < low ambient temperature air source heat pump (cold water) unit part 1: heat pump (cold water) the unit > > of industry or business use and similar applications, GB/T25127.2-2010 < < low ambient temperature air source heat pump (cold water) unit part 2: the standard condition of the low ring temperature air source heat pump heating operation of heat pump (cold water) the unit > > regulation of family use and similar applications is environment temperature-12 ℃, produce 41 ℃ of hot water, minimum environment temperature can be moved during to-20 ℃.But northeastward, northwest and high altitude localities, the environment temperature in winter is often lower than-20 ℃, cannot be in these area operations and meet the air source heat pump of above-mentioned standard.Therefore need a kind of air source heat pump that can efficiently heat under the operating mode of-30 ℃ of low temperature.
Single-stage is across critical CO
2heat pump can heat under the low temperature of-30 ℃, it is advantageous that and water temperature directly can be heated to more than 80 ℃ from 15 ℃.But across critical CO
2system is affected greatly by gas cooler inflow temperature, along with the rising of inflow temperature, and unit performance variation, for the circulating water heating of heat supply in winter, as risen to 45 ℃ from 40 ℃, advantage not; And in Air-Cooled Heat Pump Unit heating system, the Inlet and outlet water temperature of fan coil is generally 40 ℃/45 ℃, obviously across critical CO
2heat pump cannot meet this requirement.
Utility model content
The purpose of this utility model is to provide a kind of superposition type carbon dioxide air source heat pump, this heat pump can be under the ultra-low temperature surroundings of-30 ℃, the low enthalpy heat of absorbing environmental temperature, through superposition type carbon dioxide heat-pump, promote heat, produce the hot water of 45 ℃, and heat by fan coil or flooring radiation.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A superposition type carbon dioxide air source heat pump, this heat pump comprises low temperature level heating and high temperature level heating, by two-stage heating---low temperature level heating and high temperature level heating overlapping form.
Between two heatings of low and high temperature level, by condenser/evaporator or plate type heat exchanger, carry out overlapping connection, condenser/evaporator or plate type heat exchanger are the condensers of low temperature level heating, are again the evaporimeters of high temperature level heating simultaneously.
Described superposition type carbon dioxide air source heat pump is mainly by CO
2the compositions such as compressor, condenser/evaporator or plate type heat exchanger, first throttle valve, evaporimeter, R22 compressor, water-side heat and the second choke valve; CO
2compressor, condenser/evaporator or plate type heat exchanger, first throttle valve and evaporimeter are contacted successively by pipeline, form low temperature level heating; R22 compressor, water-side heat, the second choke valve and condenser/evaporator or plate type heat exchanger are contacted successively by pipeline, form high temperature level heating.
The working medium of low temperature level heating is CO
2; The working medium of high temperature level heating is R22.
CO
2compressor can be selected DORIN carbon-dioxide gas compressor, and R22 compressor is selected totally enclosed type screw compressor.
Superposition type carbon dioxide air of the present utility model source heat pump consists of two-stage heating, and first order system is low temperature level heating, CO
2as low temperature level working medium; Second level system is high temperature level heating, and R22 is as high temperature level working medium.Between two systems, by condenser/evaporator or plate type heat exchanger, carry out overlapping, utilize the evaporation of high temperature level R22 to realize low temperature level CO
2condensation.In the ideal case, the sweat cooling amount of high temperature level equals the condensation heat load of low temperature level.Low temperature level working medium CO
2absorb the heat of extraneous low temperature environment, and this heat is passed to high temperature level working medium R22, high temperature level working medium R22 is used side water cooling in condenser, transfers heat to and uses side water, finally uses side water water temperature to raise.Using side water water temperature can be increased to 45 ℃, is northern indoor heating by fan coil or flooring radiation.
Superposition type carbon dioxide air of the present utility model source heat pump can efficiently heat under the operating mode of-30 ℃ of low temperature, and unit heating energy efficiency ratio is higher than 1.665.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of superposition type carbon dioxide air of the present utility model source heat pump.
Fig. 2 is the theoretical circulation pressure-enthalpy chart of superposition type carbon dioxide air of the present utility model source heat pump.
Main Reference numeral:
1 CO
2compressor 2 evaporimeters
3 plate type heat exchanger 4 first throttle valves
5 R22 compressor 6 water-side heats
7 second choke valves
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, be superposition type carbon dioxide air source heat pump system schematic diagram of the present utility model.This heat pump comprises low temperature level heating and high temperature level heating, two-stage heating overlapping, consists of.
Between two heatings of low and high temperature level, by plate type heat exchanger 3, carry out overlapping, plate type heat exchanger 3 is condensers of low temperature level heating, is again the evaporimeter of high temperature level heating simultaneously.
Superposition type carbon dioxide air source heat pump is mainly by CO
2the compositions such as compressor 1, plate type heat exchanger 3, first throttle valve 4, evaporimeter 2, R22 compressor 5, water-side heat 6 and the second choke valve 7; Low temperature level heating is by CO
2the compositions such as compressor 1, plate type heat exchanger 3, first throttle valve 4 and evaporimeter 2, CO
2between compressor 1, plate type heat exchanger 3, first throttle valve 4 and evaporimeter 2, by the pipeline connection of contacting successively, form CO
2side circulation; High temperature level heating is comprised of R22 compressor 5, water-side heat 6, the second choke valve 7 and plate type heat exchanger 3 etc., between R22 compressor 5, water-side heat 6, the second choke valve 7 and plate type heat exchanger 3, by the pipeline connection of contacting successively, form the circulation of R22 side.
CO
2compressor 1, selects DORIN carbon-dioxide gas compressor, and model is CD1000B, theoretical capacity 11.62m
3/ h, volumetric efficiency is taken as 0.85; R22 compressor 5, selects Copeland totally enclosed type screw compressor.CO
2low temperature level working medium as low temperature level heating; R22 is as the high temperature level working medium of high temperature level heating.
CO
2side circulation: low temperature level working medium CO
2the low enthalpy heat of absorbing environmental temperature-30 ℃, flashes to low-temp low-pressure superheated steam, by CO
2compressor 1 is compressed into the CO of HTHP
2steam, CO
2steam is CO through plate type heat exchanger 3(
2the condenser of side circulation), the high temperature level working medium R22 being circulated by R22 side absorbs heat, thereby transfers heat to R22.CO
2steam is condensed into middle temperature highly pressurised liquid, becomes low-temp low-pressure gas-fluid two-phase mixture, then pass through the low enthalpy heat in evaporimeter 2 absorbing environmentals through first throttle valve 4.So circulation is absorbed heat from the Cryogenic air environment of-30 ℃, and after heat is promoted, passes to R22 side.
R22 side circulation: high temperature level working medium R22 is the evaporimeter of R22 side circulation at plate type heat exchanger 3() absorb CO
2side heat, after evaporation, by R22 compressor 5, be compressed into high temperature and high pressure steam, steam is the condenser of R22 side circulation through water-side heat 6(), heat is conducted to using side water, after the water temperature of use side water is heated to 45 ℃, do heating, R22 high temperature and high pressure steam is condensed into middle temperature highly pressurised liquid, through the second choke valve 7, becomes low-temp low-pressure gas-fluid two-phase mixture, then is the evaporimeter of R22 side circulation through plate type heat exchanger 3() absorption CO
2side heat.So circulation, from CO
2side draught heat, and pass to and use side water after heat is promoted, use side water water temperature to raise, for indoor heating.
Between low temperature level heating and high temperature level heating, by condenser/evaporator, carry out overlapping, utilize the evaporation of high temperature level R22 to realize low temperature level CO
2condensation.Low temperature level working medium CO
2absorb the heat of extraneous low temperature environment, and this heat is passed to high temperature level working medium R22, high temperature level working medium R22 is used side water cooling in condenser, transfers heat to and uses side water, finally uses side water water temperature to raise.
As shown in Figure 2, be the theoretical circulation pressure-enthalpy chart of superposition type carbon dioxide air source heat pump.CO
2side thermodynamic cycle is 1-2-3-4-5-1; R22 side thermodynamic cycle is 6-7-8-9-10-6.
Superposition type carbon dioxide air source heat pump can be used for heating under winter low temperature environment;
Winter heating's operating mode, according to environment temperature-30 ℃, is produced the hot water of 45 ℃, and for northern fan coil or floor panel heating, the heating energy efficiency ratio of unit is higher than 1.665.
Claims (5)
1. a superposition type carbon dioxide air source heat pump, it is characterized in that: this heat pump comprises low temperature level heating and high temperature level heating, by two-stage heating overlapping, formed, between described low temperature level heating and high temperature level heating, by condenser/evaporator or plate type heat exchanger, carry out overlapping connection; CO
2compressor, condenser/evaporator or plate type heat exchanger, first throttle valve and evaporimeter are contacted successively by pipeline, form low temperature level heating; R22 compressor, water-side heat, the second choke valve and condenser/evaporator or plate type heat exchanger are contacted successively by pipeline, form high temperature level heating.
2. superposition type carbon dioxide air according to claim 1 source heat pump, is characterized in that: the working medium of described low temperature level heating is CO
2.
3. superposition type carbon dioxide air according to claim 1 source heat pump, is characterized in that: described CO
2compressor is DORIN carbon-dioxide gas compressor.
4. superposition type carbon dioxide air according to claim 1 source heat pump, is characterized in that: the working medium of described high temperature level heating is R22.
5. superposition type carbon dioxide air according to claim 1 source heat pump, is characterized in that: described R22 compressor is totally enclosed type screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186170.9U CN203824164U (en) | 2014-04-16 | 2014-04-16 | Overlapped type carbon dioxide air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186170.9U CN203824164U (en) | 2014-04-16 | 2014-04-16 | Overlapped type carbon dioxide air source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203824164U true CN203824164U (en) | 2014-09-10 |
Family
ID=51479650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420186170.9U Expired - Lifetime CN203824164U (en) | 2014-04-16 | 2014-04-16 | Overlapped type carbon dioxide air source heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203824164U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042672A (en) * | 2015-09-01 | 2015-11-11 | 中国铁道科学研究院 | Air source CO2 heat pump system suitable for connecting heating radiators |
| CN105180433A (en) * | 2015-10-21 | 2015-12-23 | 浙江佳力科技股份有限公司 | Trans-critical CO2 heat pump system meeting requirements of high return water temperature and different heating conditions and manipulation method of trans-critical CO2 heat pump system |
| CN105180514A (en) * | 2015-10-23 | 2015-12-23 | 山东创尔沃热泵技术股份有限公司 | Freezing heat pump machine |
| CN106016802A (en) * | 2016-07-01 | 2016-10-12 | 杭州佳力斯韦姆新能源科技有限公司 | Cascade CO2 heat pump capable of achieving defrosting through reversing of four-way valve and defrosting method of cascade CO2 heat pump |
| CN106322833A (en) * | 2015-06-23 | 2017-01-11 | 北京嘉孚科技有限公司 | Cascading ultralow temperature air source heat pump and heating method thereof |
| CN107024019A (en) * | 2017-05-24 | 2017-08-08 | 江苏苏净集团有限公司 | A kind of carbon dioxide cascade type heat pump heating system |
| CN109595844A (en) * | 2018-12-21 | 2019-04-09 | 无锡市富邦纺机制造有限公司 | A kind of Auto-cascade cycle carbon dioxide air source heat pump |
| CN111084230A (en) * | 2019-12-16 | 2020-05-01 | 北京建筑大学 | Overlapped air source ultra-high temperature instant sterilization device and method |
| WO2021103053A1 (en) * | 2019-11-28 | 2021-06-03 | 江苏苏净集团有限公司 | Carbon dioxide overlapping type heating system, and control method therefor |
| CN113340026A (en) * | 2021-07-06 | 2021-09-03 | 河北中实新能源设备制造有限公司 | High-energy-efficiency air source heat pump in partial load operation |
-
2014
- 2014-04-16 CN CN201420186170.9U patent/CN203824164U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322833A (en) * | 2015-06-23 | 2017-01-11 | 北京嘉孚科技有限公司 | Cascading ultralow temperature air source heat pump and heating method thereof |
| CN105042672A (en) * | 2015-09-01 | 2015-11-11 | 中国铁道科学研究院 | Air source CO2 heat pump system suitable for connecting heating radiators |
| CN105180433A (en) * | 2015-10-21 | 2015-12-23 | 浙江佳力科技股份有限公司 | Trans-critical CO2 heat pump system meeting requirements of high return water temperature and different heating conditions and manipulation method of trans-critical CO2 heat pump system |
| CN105180433B (en) * | 2015-10-21 | 2017-11-17 | 杭州佳力斯韦姆新能源科技有限公司 | Realize high return water temperature and the Trans-critical cycle CO of two kinds of heating condition requirements2Heat pump and its control method |
| CN105180514A (en) * | 2015-10-23 | 2015-12-23 | 山东创尔沃热泵技术股份有限公司 | Freezing heat pump machine |
| CN106016802A (en) * | 2016-07-01 | 2016-10-12 | 杭州佳力斯韦姆新能源科技有限公司 | Cascade CO2 heat pump capable of achieving defrosting through reversing of four-way valve and defrosting method of cascade CO2 heat pump |
| CN107024019A (en) * | 2017-05-24 | 2017-08-08 | 江苏苏净集团有限公司 | A kind of carbon dioxide cascade type heat pump heating system |
| CN109595844A (en) * | 2018-12-21 | 2019-04-09 | 无锡市富邦纺机制造有限公司 | A kind of Auto-cascade cycle carbon dioxide air source heat pump |
| CN109595844B (en) * | 2018-12-21 | 2024-03-19 | 无锡市富邦纺机制造有限公司 | Self-overlapping carbon dioxide air source heat pump |
| WO2021103053A1 (en) * | 2019-11-28 | 2021-06-03 | 江苏苏净集团有限公司 | Carbon dioxide overlapping type heating system, and control method therefor |
| CN111084230A (en) * | 2019-12-16 | 2020-05-01 | 北京建筑大学 | Overlapped air source ultra-high temperature instant sterilization device and method |
| CN113340026A (en) * | 2021-07-06 | 2021-09-03 | 河北中实新能源设备制造有限公司 | High-energy-efficiency air source heat pump in partial load operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |