CN214469474U - Heat pump unit of integrated double-source heat exchanger - Google Patents
Heat pump unit of integrated double-source heat exchanger Download PDFInfo
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- CN214469474U CN214469474U CN202120500228.2U CN202120500228U CN214469474U CN 214469474 U CN214469474 U CN 214469474U CN 202120500228 U CN202120500228 U CN 202120500228U CN 214469474 U CN214469474 U CN 214469474U
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- 239000007788 liquid Substances 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000010354 integration Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model provides a heat pump set of two source heat exchangers of integral type, four working ports of four-way reversing valve (22) are connected heat pump compressor (21), indoor side heat exchanger (23), two source outdoor heat exchanger of integral type (25) and vapour and liquid separator (26) respectively, two source outdoor heat exchanger of integral type (25) have a plurality of heat transfer units, and each heat transfer unit has inlayer sleeve pipe (11) and outer sleeve pipe (12), and inlayer sleeve pipe (11) and outer sleeve pipe (12) are fixed with spacing each other; the inner part of the inner sleeve (11) can be used for heat source liquid to pass through, the outer side of the outer sleeve (12) can be used for heat source gas to pass through, and the ring pipe between the inner sleeve (11) and the outer sleeve (12) can be used for heat exchange working medium of the heat pump unit to pass through. The heat pump heat exchange working medium can simultaneously utilize a gaseous state low-temperature heat source and a liquid state low-temperature heat source according to the outdoor available low-temperature heat source condition, or one of the gaseous state low-temperature heat source and the liquid state low-temperature heat source is selected to effectively increase the heat exchange guarantee rate.
Description
Technical Field
The utility model relates to a heat pump system, in particular to can carry out heat transfer's heat pump set with liquid heat source and gaseous state heat source simultaneously, or one of them.
Background
In the northern area clean heating and the Yangtze river basin winter heating of our country in recent years, the renewable energy source heat pump energy supply is in the leading position, and the remarkable energy-saving and emission-reducing effects are achieved.
The heat pump is a way of effectively utilizing renewable energy, and according to the difference of low-level heat sources of the renewable energy, the heat pump is divided into an air source heat pump and a ground source heat pump, wherein the ground source heat pump comprises: buried pipe ground source heat pumps (including shallow buried pipes and middle and deep buried pipes), underground water ground source heat pumps, surface water ground source heat pumps (including river and lake sea water, sewage and reclaimed water), and the like. The specific renewable energy source is adopted as a low-level heat source, and is related to the resource endowment condition of the place where the project is located and the available condition of the project place. Air is a widely available low-temperature heat source, is widely applied in cold regions and hot-summer and cold-winter regions, and has been increasingly applied in recent years. However, the air source is used as a low-temperature heat source, the energy density is low, the heat exchange quantity of the heat exchanger is obviously influenced by the temperature change of the air, and the performance of the heat pump unit is lower under the low-temperature working condition.
In order to improve the situation, shallow geothermal energy, middle and deep geothermal energy and solar energy are generally used together with air as low-temperature heat sources of heat pumps, and a heat pump system with two different low-level heat sources is mainly connected in parallel, two low-level heat source side heat exchangers are connected in parallel, and the like. By adopting the measures, the problems of heat exchange fluctuation and guarantee rate of a single low-level heat source heat pump system can be solved, and the performance of the heat pump unit and the system can be effectively improved.
However, the existing products still have the following technical defects:
1. heat pump unit heat exchangers are all designed for a single low-level heat source. Because available temperature intervals of different low-level heat sources are different and energy densities are different, the low-level heat source side heat exchanger usually aims at a single heat exchange medium, namely a refrigerant/air heat exchanger or a refrigerant/water heat exchanger. The heat exchange capacity is obviously affected by a single low-temperature heat source, the heat exchange quantity of the heat exchanger can be affected due to the temperature reduction of the low-level heat source, and meanwhile, the evaporation temperature of the heat pump unit can be reduced, so that the performance of the heat pump unit is affected.
2. The multiple heat exchanger units are stacked through devices, so that the integration degree is low, and the investment is increased. Due to the characteristics of a renewable energy source low-level heat source, the heat exchange quantity is obviously influenced by the change of resource conditions. The heat pump unit is connected with a plurality of heat exchangers with different low-temperature heat sources in parallel, or the same heat pump unit is connected with a plurality of heat exchangers with different low-temperature heat sources in parallel, namely different low-temperature heat sources are still used for heat exchange respectively, the equipment is stacked, the integration degree of the heat exchangers is low, the problems of the increase of the volume of the heat exchanger unit with multiple heat exchangers, the increase of the occupied area and the like are caused, and meanwhile, the equipment investment is also increased.
3. There is no integrated double-source heat exchange heat pump set. The heat pump unit is pushed to be applied in a double-source mode in the market, but at present, an integrated double-source heat exchange device and a heat pump unit adopting the device are not adopted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a heat pump set of two source heat exchangers of integral type to realize the gaseous and two source heat exchanges of liquid of integration, can select one or two kinds of renewable energy low temperature heat sources to use according to the actual application condition, the effectual heat transfer assurance rate that has improved heat transfer stability, has improved the heat pump set performance that adopts this kind of two source heat exchangers.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a heat pump set of two source heat exchangers of integral type, four work mouths of four-way reversing valve connect heat pump compressor, indoor side heat exchanger, heat exchanger and vapour and liquid separator respectively, heat pump compressor links to each other with vapour and liquid separator, link to each other its characterized in that through throttle mechanism between indoor side heat exchanger and the heat exchanger:
the heat exchanger is provided with a plurality of heat exchange units, each heat exchange unit is provided with an inner sleeve and an outer sleeve, and the inner sleeves and the outer sleeves are fixed at intervals; the inner layer sleeve pipe can be internally provided with heat source liquid, the outer layer sleeve pipe can be externally provided with heat source gas, and the ring pipe between the inner layer sleeve pipe and the outer layer sleeve pipe can be used for heat exchange working medium of the heat pump unit to pass through.
The heat pump unit of two source heat exchangers of integral type, wherein: the inner casing and the outer casing are fixedly connected through a support body which does not influence the axial flow of the liquid medium.
The heat pump unit of two source heat exchangers of integral type, wherein: the inner side wall of the inner layer sleeve is provided with a spiral rotating rib.
The heat pump unit of two source heat exchangers of integral type, wherein: and the outer side wall of the outer sleeve is provided with heat exchange fins.
The heat pump unit of two source heat exchangers of integral type, wherein: one end of the inner layer sleeve of the plurality of heat exchange units is connected in series/parallel to the heat source liquid main inlet, and the other end of the inner layer sleeve of the plurality of heat exchange units is connected in series/parallel to the heat source liquid main outlet.
The heat pump unit of two source heat exchangers of integral type, wherein: one end of the ring pipe of the plurality of heat exchange units is connected in series/parallel to the working medium main inlet, and the other end of the ring pipe of the plurality of heat exchange units is connected in series/parallel to the working medium main outlet.
The heat pump unit of two source heat exchangers of integral type, wherein: the flow directions of the heat source liquid and the heat exchange working medium of the integrated double-source outdoor heat exchanger are opposite, and the flow directions of the heat source gas at the outermost side of the heat exchanger are perpendicular to the flow directions of the heat source liquid and the heat exchange working medium.
Compared with the prior art, the utility model discloses a heat exchanger configuration optimization can realize utilizing gaseous state and liquid low temperature heat source simultaneously, perhaps utilizes one of them, has effectively increased the heat transfer assurance rate, can realize the extension of low temperature heat source, will be suitable for the low temperature heat source and carry out multisource access, and simultaneously, the integration has effectively realized system integration to the two source heat exchangers of integration, has avoided equipment piling up and has repeated, has saved area, has improved equipment economic nature when improving heat transfer reliability.
Drawings
Fig. 1 is a schematic structural diagram of a heat exchange unit of an integrated double-source heat exchanger.
Fig. 2 is a schematic structural diagram of the integrated double-source heat exchanger.
Fig. 3 is a side view of fig. 2.
Fig. 4 is a system structure diagram of a heat pump unit adopting an integrated double-source heat exchanger.
Description of reference numerals: an inner layer sleeve 11; an outer casing 12; a rotating rib 13; heat exchange fins 14; a heat pump compressor 21; a four-way selector valve 22; an indoor-side heat exchanger 23; a throttle mechanism 24; an integrated dual source heat exchanger 25; a gas-liquid separator 26; a heat source liquid main inlet 31; a heat source liquid main outlet 32; a working medium main inlet 33; a main working fluid outlet 34.
Detailed Description
As shown in fig. 1, the heat exchange unit of the integrated dual-source heat exchanger provided by the present invention comprises an inner casing 11 and an outer casing 12, wherein the inner casing 11 and the outer casing 12 can be fixed by a support (such as a sieve plate, a support column or a spiral rib) that does not affect the axial flow of the liquid medium, so that the inner casing 11 and the outer casing 12 are fixed at intervals; the heat exchange device is characterized in that heat source liquid can pass through the inner layer sleeve 11, heat source gas can pass through the outer layer sleeve 12, a ring pipe between the inner layer sleeve 11 and the outer layer sleeve 12 can be used for heat exchange working medium to pass through, in the process, the heat exchange working medium can exchange heat with the heat source liquid on the inner side and the heat source gas on the outer side simultaneously, and the heat exchange efficiency is improved on the basis of not increasing the equipment cost and the arrangement space greatly.
The flowing directions of the heat source liquid and the heat exchange working medium can be designed into forward flow or reverse flow according to the heat exchange effect requirement, and the reverse flow heat exchange effect is better and opposite.
As shown in fig. 1, in order to increase the heat exchange efficiency between the heat exchange working medium and the heat source liquid inside the heat exchange working medium, the inner side wall of the inner casing 11 is provided with spiral rotating ribs 13, and when the heat source liquid axially flows in the inner casing 11, the heat source liquid is hindered by the rotating ribs 13 to form spiral flow, so that the disturbance of the heat source liquid is increased, and the heat source liquid is enabled to fully exchange heat with the heat exchange working medium.
As shown in fig. 1, in order to increase the heat exchange efficiency between the heat exchange working medium and the heat source gas outside the heat exchange working medium, an annular heat exchange fin 14 is provided on the outer sidewall of the outer sleeve 12 to increase the heat exchange area.
As shown in fig. 2 and fig. 3, which are schematic structural diagrams of the integrated dual-source heat exchanger provided by the present invention, the integrated dual-source heat exchanger is composed of a plurality of heat exchange units, one end of the inner casing 11 of the plurality of heat exchange units is connected in series/parallel to the heat source liquid main inlet 31, and the other end is connected in series/parallel to the heat source liquid main outlet 32; one end of the ring pipe of the plurality of heat exchange units is connected in series/parallel to the working medium main inlet 33, and the other end of the ring pipe of the plurality of heat exchange units is connected in series/parallel to the working medium main outlet 34. Moreover, the heat exchange units are bent repeatedly to form layers which are arranged densely in a staggered mode, and the heat source gas is perpendicular to the sleeve and exchanges heat with the pipeline and the fins (namely, the heat source gas is perpendicular to the flowing direction of the heat source liquid and the heat exchange working medium), so that the heat source gas can pass through the heat exchange units in a concentrated mode, and the heat exchange efficiency is improved.
As shown in fig. 4, it is the utility model provides an adopt heat pump set's of two source heat exchangers of integral type system structure chart, heat pump compressor 21, indoor side heat exchanger 23, the two source heat exchangers of integral type 25 and vapour and liquid separator 26 are connected respectively to four work ports of four-way reversing valve 22, heat pump compressor 21 links to each other with vapour and liquid separator 26, link to each other through throttle mechanism 24 between indoor side heat exchanger 23 and the two source heat exchangers of integral type 25.
When the heat pump unit supplies heat, the circulation of the refrigerant (namely the heat exchange working medium) is as follows: compressor 21 → four-way reversing valve 22 → indoor side heat exchanger 23 → throttle mechanism 24 → integrated double source heat exchanger 25 → four-way reversing valve 22 → gas-liquid separator 26 → heat pump compressor 21; when the heat pump unit heats, the integrated double-source heat exchanger 25 can adopt gas side heat exchange, liquid side heat exchange or the two heat exchanges at the same time to provide heat for the indoor space.
When the heat pump unit supplies cold, the refrigerant circulation is: the heat pump compressor 21 → the four-way selector valve 22 → the integrated double-source heat exchanger 25 → the throttle mechanism 24 → the indoor side heat exchanger 23 → the four-way selector valve 22 → the gas-liquid separator 26 → the heat pump compressor 21; when the heat pump unit is used for refrigerating, the integrated double-source heat exchanger 25 can adopt gas side heat exchange, liquid side heat exchange or the two heat exchanges at the same time to discharge indoor heat to outdoor air or water.
The double sources in the integrated double-source heat exchanger refer to a gas heat source and a liquid heat source, wherein the liquid heat source can be derived from various renewable energy sources, such as circulating heat exchange water provided by a soil buried pipe heat exchanger, underground water, surface water, sewage, reclaimed water, solar circulating water and the like meeting the water quality requirement.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a heat pump set of two source heat exchangers of integral type, four work mouths of four-way reversing valve (22) are connected heat pump compressor (21), indoor side heat exchanger (23), two source outdoor heat exchanger of integral type (25) and vapour and liquid separator (26) respectively, heat pump compressor (21) link to each other with vapour and liquid separator (26), link to each other its characterized in that through throttle mechanism (24) between indoor side heat exchanger (23) and the two source outdoor heat exchanger of integral type (25):
the integrated double-source outdoor heat exchanger (25) is provided with a plurality of heat exchange units, each heat exchange unit is provided with an inner casing (11) and an outer casing (12), and the inner casing (11) and the outer casing (12) are fixed at intervals; the inner layer sleeve (11) can be used for heat source liquid to pass through, the outer layer sleeve (12) can be used for heat source gas to pass through, and the ring pipe between the inner layer sleeve (11) and the outer layer sleeve (12) can be used for heat exchange working medium of the heat pump unit to pass through.
2. The heat pump unit of the integrated double-source heat exchanger as claimed in claim 1, wherein: the inner casing (11) and the outer casing (12) of the integrated double-source outdoor heat exchanger (25) are fixedly connected through a support body which does not influence the axial flow of a liquid medium.
3. The heat pump unit of the integrated double-source heat exchanger as claimed in claim 1, wherein: the integrated double-source outdoor heat exchanger (25) is provided with spiral rotating ribs (13) on the inner side wall of the inner-layer sleeve (11).
4. The heat pump unit of the integrated double-source heat exchanger as claimed in claim 1, wherein: the integrated double-source outdoor heat exchanger (25) is provided with annular heat exchange fins (14) on the outer side wall of the outer sleeve (12).
5. The heat pump unit of the integrated double-source heat exchanger as claimed in claim 1, wherein: the integrated double-source outdoor heat exchanger (25) is characterized in that one end of an inner casing (11) of the plurality of heat exchange units is connected in series/parallel to a heat source liquid main inlet (31), and the other end of the inner casing is connected in series/parallel to a heat source liquid main outlet (32).
6. The heat pump unit of the integrated double-source heat exchanger as claimed in claim 1, wherein: one end of a ring pipe of the plurality of heat exchange units of the integrated double-source outdoor heat exchanger (25) is connected in series/parallel to a working medium main inlet (33), and the other end of the ring pipe is connected in series/parallel to a working medium main outlet (34).
7. The heat pump unit of the integrated double-source heat exchanger as claimed in claim 1, wherein: the flow directions of the heat source liquid and the heat exchange working medium of the integrated double-source outdoor heat exchanger (25) are opposite, and the flow directions of the heat source gas at the outermost side of the heat exchanger are vertical to the flow directions of the heat source liquid and the heat exchange working medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120500228.2U CN214469474U (en) | 2021-03-02 | 2021-03-02 | Heat pump unit of integrated double-source heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120500228.2U CN214469474U (en) | 2021-03-02 | 2021-03-02 | Heat pump unit of integrated double-source heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214469474U true CN214469474U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120500228.2U Active CN214469474U (en) | 2021-03-02 | 2021-03-02 | Heat pump unit of integrated double-source heat exchanger |
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| Country | Link |
|---|---|
| CN (1) | CN214469474U (en) |
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2021
- 2021-03-02 CN CN202120500228.2U patent/CN214469474U/en active Active
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