CN203940649U - The cascade high-temperature heat pump that a kind of high efficiency heats - Google Patents
The cascade high-temperature heat pump that a kind of high efficiency heats Download PDFInfo
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- CN203940649U CN203940649U CN201420327445.6U CN201420327445U CN203940649U CN 203940649 U CN203940649 U CN 203940649U CN 201420327445 U CN201420327445 U CN 201420327445U CN 203940649 U CN203940649 U CN 203940649U
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- heat exchanger
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- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses the cascade high-temperature heat pump that a kind of high efficiency heats, it comprises low-pressure system, high-pressure system and connects the second heat exchanger between low-pressure system, high-pressure system, low-pressure system comprises the first compressor, the first cross valve, First Heat Exchanger, the first gas-liquid separator, separating tube, first throttle device and high pressure fluid reservoir, and described high-pressure system comprises the second compressor, the second cross valve, the second gas-liquid separator, the 3rd heat exchanger, the second throttling arrangement and high pressure fluid reservoir; Between the auxilairy air intake of described the first compressor and first throttle device, be parallel with EVI loop or/and be parallel with EVI loop between the auxilairy air intake of described the second compressor and the second throttling arrangement.By increase EVI loop in high-pressure system and low-pressure system, greatly promote high-pressure system and the heating efficiency with low-pressure system, expand greatly the scope of application of unit.
Description
Technical field
The utility model relates to a kind of cascade high-temperature heat pump, the cascade high-temperature heat pump that particularly a kind of high efficiency heats.
Background technology
Existing air source heat pump is in the winter time under the too low limiting condition of environment temperature, heating efficiency can significantly reduce, even normally stable operation, so just greatly limit the range of operation of air source heat pump, and, common air source heat pump also cannot be produced high-temperature-hot-water, has limited greatly the scope of application of air source heat pump.
Utility model content
The purpose of this utility model, the cascade high-temperature heat pump that provides a kind of high efficiency to heat is provided.
The solution that the utility model solves its technical problem is: the cascade high-temperature heat pump that a kind of high efficiency heats, it comprises low-pressure system, high-pressure system and connection low-pressure system, the second heat exchanger between high-pressure system, described low-pressure system comprises the first cross valve that has the first compressor of gas returning port and exhaust outlet and be communicated with the exhaust outlet of the first compressor, the C mouth of described the first cross valve is communicated with the second heat exchanger, the S mouth of the first cross valve is communicated with the gas returning port of the first compressor by after the first gas-liquid separator, the E mouth of the first cross valve is communicated with First Heat Exchanger, between described First Heat Exchanger and the second heat exchanger, be communicated with successively separating tube by pipeline, first throttle device and high pressure fluid reservoir, described high-pressure system comprises the second cross valve that has the second compressor of gas returning port and exhaust outlet and be communicated with the exhaust outlet of the second compressor, the C mouth of described the second cross valve is communicated with the 3rd heat exchanger, the S mouth of the second cross valve is communicated with the gas returning port of the second compressor by after the second gas-liquid separator, the E mouth of the second cross valve is communicated with the second heat exchanger, between described the second heat exchanger and the 3rd heat exchanger, is communicated with successively the second throttling arrangement and high pressure fluid reservoir by pipeline, between the auxilairy air intake of described the first compressor and first throttle device, be parallel with EVI loop or/and be parallel with EVI loop between the auxilairy air intake of described the second compressor and the second throttling arrangement.
As the further improvement of technique scheme, EVI loop in low-pressure system comprises the first hydrojet magnetic valve and the first economizer between auxilairy air intake and the first throttle device that is connected in parallel on the first compressor, between described the first economizer and first throttle device, the first electric expansion valve is installed, two interfaces of remainder of the first economizer are communicated with high pressure fluid reservoir and the first throttle device of low-pressure system respectively, EVI loop in high-pressure system comprises the second hydrojet magnetic valve and the second economizer between auxilairy air intake and the second throttling arrangement that is connected in parallel on the second compressor, between described the second economizer and the second throttling arrangement, the second electric expansion valve is installed, two interfaces of remainder of the second economizer are communicated with the 3rd heat exchanger and the second throttling arrangement respectively.
As the further improvement of technique scheme, described the second heat exchanger is refrigerant-refrigerant heat exchanger; Described First Heat Exchanger is air-refrigerant heat exchanger; Described the 3rd heat exchanger is water-refrigerant heat exchanger.
The beneficial effects of the utility model are: the utility model, by increase EVI loop in high-pressure system, has promoted the heating efficiency of high-pressure system greatly, make system can produce the high-temperature-hot-water up to 85 DEG C, expand greatly the scope of application of unit.And the second hydrojet magnetic valve in EVI loop can effectively control the delivery temperature of high-pressure system, ensure high-pressure system safe and highly efficient operation; By increase EVI loop in low-pressure system, greatly promote the heating efficiency of low-pressure system, system can efficiently be heated under low temperature environment.Greatly expanded the range of operation of air source heat pump, and the first hydrojet magnetic valve in EVI loop can effectively control the delivery temperature of high-pressure system, ensure high-pressure system safe and highly efficient operation.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, instead of whole embodiment, and those skilled in the art is not paying under the prerequisite of creative work, can also obtain other designs and accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation that the utility model middle-and-high voltage system and low-pressure system are all installed EVI loop;
Fig. 2 is the structural representation that the utility model middle-and-high voltage system is installed EVI loop;
Fig. 3 is the structural representation that the utility model middle low-pressure system is installed EVI loop.
Detailed description of the invention
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is clearly and completely described, to understand fully the purpose of this utility model, feature and effect.Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiment that those skilled in the art obtains under the prerequisite of not paying creative work, all belong to the scope that the utility model is protected.In addition, all connection/annexations of mentioning in literary composition, not singly refer to that member directly joins, and refer to and can, according to concrete performance, connect auxiliary by adding or reducing, and form more excellent draw bail.
With reference to Fig. 1 ~ 3, the cascade high-temperature heat pump that a kind of high efficiency heats, it comprises low-pressure system 20, high-pressure system 21 and connection low-pressure system 20, the second heat exchanger 5 between high-pressure system 21, described low-pressure system 20 comprises the first cross valve 2 that has the first compressor 4 of gas returning port and exhaust outlet and be communicated with the exhaust outlet of the first compressor 4, the C mouth of described the first cross valve 2 is communicated with the second heat exchanger 5, the S mouth of the first cross valve 2 passes through to be communicated with the gas returning port of the first compressor 4 after the first gas-liquid separator 3, the E mouth of the first cross valve 2 is communicated with First Heat Exchanger 1, between described First Heat Exchanger 1 and the second heat exchanger 5, be communicated with successively separating tube by pipeline, first throttle device 9 and high pressure fluid reservoir 13, described high-pressure system 21 comprises the second cross valve 6 that has the second compressor 8 of gas returning port and exhaust outlet and be communicated with the exhaust outlet of the second compressor 8, the C mouth of described the second cross valve 6 is communicated with the 3rd heat exchanger 18, the S mouth of the second cross valve 6 passes through to be communicated with the gas returning port of the second compressor 8 after the second gas-liquid separator 7, the E mouth of the second cross valve 6 is communicated with the second heat exchanger 5, between described the second heat exchanger 5 and the 3rd heat exchanger 18, is communicated with successively the second throttling arrangement 14 and high pressure fluid reservoir 13 by pipeline, between the auxilairy air intake of described the first compressor 4 and first throttle device 9, be parallel with EVI loop or/and be parallel with EVI loop between the auxilairy air intake of described the second compressor 8 and the second throttling arrangement 14.Certainly, also comprise the water pump 19 being connected with the 3rd heat exchanger 18.
Be further used as preferred embodiment, EVI loop in low-pressure system 20 comprises the first hydrojet magnetic valve 10 and the first economizer 12 between auxilairy air intake and the first throttle device 9 that is connected in parallel on the first compressor 4, between described the first economizer 12 and first throttle device 9, the first electric expansion valve 11 is installed, two interfaces of remainder of the first economizer 12 are communicated with high pressure fluid reservoir 13 and the first throttle device 9 of low-pressure system 20 respectively, EVI loop in high-pressure system 21 comprises the second hydrojet magnetic valve 15 and the second economizer 17 between auxilairy air intake and the second throttling arrangement 14 that is connected in parallel on the second compressor 8, between described the second economizer 17 and the second throttling arrangement 14, the second electric expansion valve 16 is installed, two interfaces of remainder of the second economizer 17 are communicated with the 3rd heat exchanger 18 and the second throttling arrangement 14 respectively.
Be further used as preferred embodiment, described the second heat exchanger 5 is refrigerant-refrigerant heat exchanger; Described First Heat Exchanger 1 is air-refrigerant heat exchanger; Described the 3rd heat exchanger 18 is water-refrigerant heat exchanger.
Below the embodiment that low-pressure system 20 and high-pressure system 21 are all provided with EVI loop.
Heating operation: the second compressor 8 is first opened, the rear unlatching of the first compressor 4.
High-pressure system: the second compressor 8 is discharged the refrigerant gas of HTHP, high-temperature high-pressure refrigerant gas flows to from the D mouth of the second cross valve 6, flow out from the C mouth of the second cross valve 6, enter in the 3rd heat exchanger 18, carry out becoming cryogenic high pressure refrigerant liquid after heat exchange with the cold water entering in the 3rd heat exchanger 18 simultaneously, the cryogenic high pressure refrigerant liquid flowing out from the 3rd heat exchanger 18 divides two-way to flow, and a road is major loop, Wei Fu loop, another road.The refrigerant liquid of major loop enters the second economizer 17, the refrigerant liquid in auxiliary loop becomes the gas-liquid mixture of low pressure after the second electric expansion valve 16 step-downs, also enter the second economizer 17 simultaneously, two-way cold-producing medium produces after heat exchange in the second economizer 17, and the cold-producing medium draw heat in auxiliary loop is sucked by the auxilairy air intake of the second compressor 8 after becoming gas.The cold-producing medium of main road flows out from the cold outlet of mistake of the second economizer 17, becomes after subcooled liquid, flows into reducing pressure by regulating flow in the second throttling arrangement 14, then flows in the second heat exchanger 5 by high pressure fluid reservoir 13.The refrigerant liquid of low-temp low-pressure has absorbed the second heat exchanger 5 heat that condensation discharges in low-pressure system for evaporation in the second heat exchanger 5, complete low-temperature low-pressure refrigerant gas after evaporation successively through E mouth, the S mouth of the second cross valve 6, enter the second gas-liquid separator 7, flow out from the second gas-liquid separator 7 again, get back to the second compressor 8 from the gas returning port of the second compressor 8.In the time of high-pressure system excessive discharge temperature, the second hydrojet magnetic valve 15 is opened to the delivery temperature of fast reducing system, the safe and stable operation of guarantee high-pressure system.
Low-pressure system: the first compressor 4 is discharged the refrigerant gas of HTHP, high-temperature high-pressure refrigerant gas flows to from the D mouth of the first cross valve 2, flow out from the C mouth of the first cross valve 2, enter in the second heat exchanger 5 with high-pressure system in the refrigerant liquid of low-temp low-pressure carry out becoming after heat exchange the refrigerant liquid of cryogenic high pressure, the cryogenic high pressure refrigerant liquid flowing out from the second heat exchanger 5 point two-way high pressure fluid reservoir 13 of flowing through flows, one tunnel is major loop, Wei Fu loop, another road.The refrigerant liquid of major loop enters the first economizer 12, the refrigerant liquid in auxiliary loop becomes the gas-liquid mixture of low pressure after the first electric expansion valve 11 step-downs, also enter the first economizer 12 simultaneously, two-way cold-producing medium produces after heat exchange in the first economizer 12, and the cold-producing medium draw heat in auxiliary loop is sucked by the auxilairy air intake of the first compressor 4 after becoming gas.The cold-producing medium of main road flows out from the cold outlet of mistake of the first economizer 12, becomes after subcooled liquid, in inflow first throttle device 9, after reducing pressure by regulating flow, enters in First Heat Exchanger 1 and evaporates.Complete evaporation low-temperature low-pressure refrigerant gas afterwards successively through E mouth, the S mouth of the first cross valve 2, enter the first gas-liquid separator 3, then flow out from the first gas-liquid separator 3, get back to the first compressor 4 from the gas returning port of the first compressor 4.In the time of low-pressure system excessive discharge temperature, the first hydrojet magnetic valve 10 is opened to the delivery temperature of fast reducing system, the safe and stable operation of guarantee low-pressure system.
More than that preferred embodiments of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to the utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (3)
1. the cascade high-temperature heat pump that high efficiency heats, it comprises low-pressure system, high-pressure system and connection low-pressure system, the second heat exchanger between high-pressure system, it is characterized in that: described low-pressure system comprises the first cross valve that has the first compressor of gas returning port and exhaust outlet and be communicated with the exhaust outlet of the first compressor, the C mouth of described the first cross valve is communicated with the second heat exchanger, the S mouth of the first cross valve is communicated with the gas returning port of the first compressor by after the first gas-liquid separator, the E mouth of the first cross valve is communicated with First Heat Exchanger, between described First Heat Exchanger and the second heat exchanger, be communicated with successively separating tube by pipeline, first throttle device and high pressure fluid reservoir, described high-pressure system comprises the second cross valve that has the second compressor of gas returning port and exhaust outlet and be communicated with the exhaust outlet of the second compressor, the C mouth of described the second cross valve is communicated with the 3rd heat exchanger, the S mouth of the second cross valve is communicated with the gas returning port of the second compressor by after the second gas-liquid separator, the E mouth of the second cross valve is communicated with the second heat exchanger, between described the second heat exchanger and the 3rd heat exchanger, is communicated with successively the second throttling arrangement and high pressure fluid reservoir by pipeline, between the auxilairy air intake of described the first compressor and first throttle device, be parallel with EVI loop or/and be parallel with EVI loop between the auxilairy air intake of described the second compressor and the second throttling arrangement.
2. the cascade high-temperature heat pump that high efficiency according to claim 1 heats, it is characterized in that: the EVI loop in low-pressure system comprises the first hydrojet magnetic valve and the first economizer between auxilairy air intake and the first throttle device that is connected in parallel on the first compressor, between described the first economizer and first throttle device, the first electric expansion valve is installed, two interfaces of remainder of the first economizer are communicated with high pressure fluid reservoir and the first throttle device of low-pressure system respectively, EVI loop in high-pressure system comprises the second hydrojet magnetic valve and the second economizer between auxilairy air intake and the second throttling arrangement that is connected in parallel on the second compressor, between described the second economizer and the second throttling arrangement, the second electric expansion valve is installed, two interfaces of remainder of the second economizer are communicated with the 3rd heat exchanger and the second throttling arrangement respectively.
3. the cascade high-temperature heat pump that high efficiency according to claim 1 heats, is characterized in that: described the second heat exchanger is refrigerant-refrigerant heat exchanger; Described First Heat Exchanger is air-refrigerant heat exchanger; Described the 3rd heat exchanger is water-refrigerant heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420327445.6U CN203940649U (en) | 2014-06-18 | 2014-06-18 | The cascade high-temperature heat pump that a kind of high efficiency heats |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420327445.6U CN203940649U (en) | 2014-06-18 | 2014-06-18 | The cascade high-temperature heat pump that a kind of high efficiency heats |
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| CN203940649U true CN203940649U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420327445.6U Expired - Lifetime CN203940649U (en) | 2014-06-18 | 2014-06-18 | The cascade high-temperature heat pump that a kind of high efficiency heats |
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| CN (1) | CN203940649U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066496A (en) * | 2015-07-27 | 2015-11-18 | 刘秋克 | Centralized heating substituting unit of capacity-variable two-stage-heat-pump boiler |
| CN107917549A (en) * | 2017-12-23 | 2018-04-17 | 田铭 | Air injection enthalpy-increasing air energy twin-stage heating heat pump type air conditioning system |
| CN108644747A (en) * | 2018-05-18 | 2018-10-12 | 江苏科技大学 | It is a kind of to utilize super pressure-high temperature vapour system in the generation of dyeing waste water waste heat |
| CN109186114A (en) * | 2018-09-27 | 2019-01-11 | 爱能森（深圳）高端智能装备有限公司 | A kind of heat-pump apparatus |
| CN116507865A (en) * | 2020-12-01 | 2023-07-28 | 大金工业株式会社 | Refrigeration cycle system |
| CN116529542A (en) * | 2020-12-01 | 2023-08-01 | 大金工业株式会社 | Refrigeration cycle system |
| CN116601443A (en) * | 2020-12-01 | 2023-08-15 | 大金工业株式会社 | Refrigeration cycle system |
| US12385675B2 (en) | 2020-05-08 | 2025-08-12 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
-
2014
- 2014-06-18 CN CN201420327445.6U patent/CN203940649U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066496A (en) * | 2015-07-27 | 2015-11-18 | 刘秋克 | Centralized heating substituting unit of capacity-variable two-stage-heat-pump boiler |
| CN107917549A (en) * | 2017-12-23 | 2018-04-17 | 田铭 | Air injection enthalpy-increasing air energy twin-stage heating heat pump type air conditioning system |
| CN108644747A (en) * | 2018-05-18 | 2018-10-12 | 江苏科技大学 | It is a kind of to utilize super pressure-high temperature vapour system in the generation of dyeing waste water waste heat |
| CN109186114A (en) * | 2018-09-27 | 2019-01-11 | 爱能森（深圳）高端智能装备有限公司 | A kind of heat-pump apparatus |
| US12385675B2 (en) | 2020-05-08 | 2025-08-12 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
| CN116507865A (en) * | 2020-12-01 | 2023-07-28 | 大金工业株式会社 | Refrigeration cycle system |
| CN116529542A (en) * | 2020-12-01 | 2023-08-01 | 大金工业株式会社 | Refrigeration cycle system |
| CN116601443A (en) * | 2020-12-01 | 2023-08-15 | 大金工业株式会社 | Refrigeration cycle system |
| EP4257892A4 (en) * | 2020-12-01 | 2024-08-07 | Daikin Industries, Ltd. | Refrigeration cycle system |
| CN116601443B (en) * | 2020-12-01 | 2024-10-29 | 大金工业株式会社 | Refrigeration cycle system |
| US12410956B2 (en) | 2020-12-01 | 2025-09-09 | Daikin Industries, Ltd. | Refrigeration cycle system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141112 |