CN216644416U - Hot-blast unit of heat pump based on return air waste heat recovery - Google Patents
Hot-blast unit of heat pump based on return air waste heat recovery Download PDFInfo
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- CN216644416U CN216644416U CN202123098592.XU CN202123098592U CN216644416U CN 216644416 U CN216644416 U CN 216644416U CN 202123098592 U CN202123098592 U CN 202123098592U CN 216644416 U CN216644416 U CN 216644416U
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- 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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The utility model relates to a heat pump hot air unit based on return air waste heat recovery, belonging to the technical field of fresh air heat pump air conditioners; the fresh air inlet and the return air inlet are arranged on the same side of the shell, the fresh air outlet is arranged on the other side of the shell, and the return air outlet is arranged on the upper side of the shell; a filter, a fresh return air heat exchanger, a solution heat absorption section, a solution regeneration section and an axial flow fan are sequentially arranged in the shell along the flowing direction of the return air after entering; a filter, a fresh air and return air heat exchanger, a heat pump condenser and a blower are sequentially arranged in the shell along the flowing direction of fresh air after entering; the top of the shell is provided with a solar heat collecting device, and a steam compression type heat pump unit is also arranged in the shell; the waste heat of the return air can be fully utilized, after the heat is absorbed from the return air through direct heat exchange, solution heat absorption and the like of the fresh air and the return air, the heat is deeply taken from the return air through the heat pump, and hot air is prepared and supplied to the indoor space so as to meet the requirements of the production process or improve the production environment.
Description
Technical Field
The utility model belongs to the technical field of fresh air heat pump air conditioners, and particularly relates to a heat pump hot air unit based on return air waste heat recovery.
Background
With the development of economic construction, particularly in various precision processing industries, clothing factories, grain processing enterprises, markets and other places, heating needs to be carried out on factory buildings or markets. When heating in these areas, often need to be furnished with traditional heat pump set or boiler and combination formula air conditioning unit, the operational mode is single, and the energy consumption is huge, and the operation maintenance cost is high.
Under the background of carbon peak reaching and carbon neutralization proposed by the state, indoor waste heat needs to be fully recovered, indoor exhaust waste heat recovery is well done, heat is absorbed by combining solution after heat exchange of fresh air and return air, and large spaces such as a factory building are heated through a heat pump system, so that the requirement of a production process is met or the environment is heated.
In the project that adopts air source heat pump heating, if air relative humidity is great, receive outdoor meteorological condition to influence, air source heat pump can lead to heating temperature unstable because of frosting and defrosting problem, and unit heating efficiency descends, if consequently adopts the degree of depth of return air waste heat to retrieve, can increase substantially energy utilization efficiency, guarantee heating effect.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a heat pump hot air unit based on return air waste heat recovery; the defects of the existing fresh air conditioning unit in the prior art are overcome.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
A heat pump hot air unit based on return air waste heat recovery comprises a shell, wherein a fresh air inlet, a fresh air outlet, a return air inlet and a return air outlet are respectively arranged on the shell, the fresh air inlet and the return air inlet are arranged on the same side of the shell, the fresh air outlet is arranged on the other side of the shell, and the return air outlet is arranged on the upper side of the shell; the inside of the shell is sequentially provided with a filter, a fresh return air heat exchanger, a solution heat absorption section, a solution regeneration section and an axial flow fan along the flowing direction of the return air after entering; a filter, a fresh air and return air heat exchanger, a heat pump condenser and a blower are sequentially arranged in the shell along the flowing direction of fresh air after entering; the top of the shell is provided with a solar heat collecting device, and the inside of the shell is also provided with a steam compression type heat pump unit.
Further, the axial flow fan is arranged below the return air outlet, and the blower is arranged at the fresh air outlet.
Furthermore, the return air inlet is arranged above the fresh air inlet.
Furthermore, the filter is arranged at the fresh air inlet and the return air inlet, and the fresh and return air heat exchanger is arranged at one side of the filter, which is far away from the fresh air inlet and the return air inlet.
Furthermore, the solution heat absorption section and the solution regeneration section are arranged on the upper layer in the shell, and the solution regeneration section is positioned on one side of the solution heat absorption section, which is far away from the return air inlet.
Further, the solution heat absorption section comprises a solution heat absorption pump, a solution heat absorption spray row, a solution heat absorption filler and a water tank, the solution heat absorption spray row is arranged above the solution heat absorption filler, the water tank is arranged below the solution heat absorption filler, and the solution heat absorption pump is arranged inside the water tank.
Further, the solution regeneration section comprises a solution regeneration spray row, a solution regeneration filler, a solution pump and a water tank, the solution regeneration spray row is arranged above the solution regeneration filler and below the axial flow fan, the water tank is arranged below the solution regeneration filler, the solution pump is arranged inside the water tank, the solution pump is connected with an inlet of the solar heat collection device through a pipeline, and an outlet of the solar heat collection device is connected with the solution regeneration spray row through a pipeline.
Further, the steam compression heat pump unit comprises a compressor, an exhaust pipe, a finned condenser, a drying filter, an expansion valve and a titanium pipe evaporator, wherein the finned condenser is arranged on one side of the air feeder away from the fresh air outlet, and the compressor is arranged between the fresh air return heat exchanger and the finned condenser.
Furthermore, the titanium tube evaporator is provided with four interfaces, the compressor is connected with one of the interfaces through an air inlet pipe, the second interface is connected with the outlet of the finned condenser through a pipeline, and the compressor is connected with the inlet of the finned condenser through an exhaust pipe; the expansion valve and the drying filter are sequentially arranged on a pipeline between the titanium tube evaporator and the fin type condenser.
Furthermore, the two remaining interfaces of the titanium tube evaporator are respectively connected with a solution heat absorption pump and a solution heat absorption spray row through a first solution heat extraction pipeline and a second solution heat extraction pipeline.
Compared with the prior art, the utility model has the following beneficial effects:
compared with the prior art of the fresh air conditioning and heating unit, the utility model aims to provide the heat pump fresh air unit based on return air waste heat recovery, which can fully recover the return air waste heat, and can prepare a heat pump for supplying to the indoor space by deeply extracting heat from the return air through direct heat exchange, solution heat absorption and the like of the fresh air and the return air and the like so as to meet the production process requirements or improve the production environment. The utility model combines the fresh air return heat exchange technology with the solution heat absorption, fully and efficiently utilizes the resource of return air waste heat, provides energy utilization efficiency, greatly reduces the energy cost of heating, is energy-saving and environment-friendly, and has strong practicability.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of the present invention as a whole;
the system comprises a fresh air inlet 1, a return air inlet 2, a filter 3, a shell 4, a solar heat collection device 5, a second solution heat taking pipeline 6, a solution heat absorbing spray row 7, a solution heat absorbing filler 8, a return air outlet 9, an axial flow fan 10, a solution regenerating spray row 13, a solution regenerating filler 14, a water tank 15, a solution heat absorbing pump 16, a solution pump 17, a first solution heat taking pipeline 18, a compressor 19, an exhaust pipe 20, a finned condenser 21, a blower 22, a fresh air outlet 23, a drying filter 24, an expansion valve 25, a titanium pipe evaporator 26 and a fresh air return heat exchanger 27.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the utility model provides a heat pump hot air unit based on return air waste heat recovery, which comprises a shell 4, wherein the shell 4 is respectively provided with a fresh air inlet 1, a fresh air outlet 23, a return air inlet 2 and a return air outlet 9, the fresh air inlet 1 and the return air inlet 2 are arranged at the same side of the shell 4, the fresh air outlet 23 is arranged at the other side of the shell 4, and the return air outlet 9 is arranged at the upper side of the shell 4. Fresh air enters from a fresh air inlet 1 of the shell 4 and flows out from a fresh air outlet 23, and return air enters from a return air inlet 2 of the shell 4 and flows out from a return air outlet 9.
The filter 3, the fresh return air heat exchanger 27, the solution heat absorption section, the solution regeneration section and the axial flow fan 10 are sequentially arranged in the shell 4 along the flowing direction of the return air after entering; the inside of the casing 4 is provided with a filter 3, a fresh air and return air heat exchanger 27, a heat pump condenser and a blower 22 in sequence along the flowing direction of fresh air after entering. Fresh air enters from a fresh air inlet 1, return air enters from a return air inlet 2, and the fresh air passes through a filter 3 and a fresh air return heat exchanger 27 in sequence, then the fresh air passes through a heat pump condenser, and finally is output from a fresh air outlet 23 through a blower 22; the return air passes through the solution heat absorption section and the solution regeneration section, and is finally output from the return air outlet through the axial flow fan 10.
The top of the shell 4 is provided with a solar heat collecting device 5 for heating the solution and regenerating the solution. The inside vapor compression heat pump set that still is provided with of casing 4, the heat pump condenser is located vapor compression heat pump set's inside.
The axial flow fan 10 is arranged below the return air outlet 9 and is used for enabling return air in the shell 4 to flow out of the return air outlet 9; the blower 22 is disposed at the fresh air outlet 23, and is configured to discharge fresh air from the fresh air outlet 23 inside the casing 4.
The return air inlet 2 is arranged above the fresh air inlet 1, the filter 3 is arranged at the fresh air inlet 1 and the return air inlet 2, and fresh air and return air entering the shell 4 are filtered by the filter 3 at first. The fresh air and return air heat exchanger 27 is arranged on one side of the filter 3 far away from the fresh air inlet 1 and the return air inlet 2.
The solution heat absorption section and the solution regeneration section are arranged on the upper layer inside the shell 4, and the solution regeneration section is positioned on one side of the solution heat absorption section, which is far away from the return air inlet 2. The solution heat absorption section comprises a solution heat absorption pump 16, a solution heat absorption spray row 7, a solution heat absorption filler 8 and a water tank 15, wherein the solution heat absorption spray row 7 is arranged above the solution heat absorption filler 8, the water tank 15 is arranged below the solution heat absorption filler 8, and the solution heat absorption pump 16 is arranged inside the water tank 15. The solution regeneration section comprises a solution regeneration spray row 13, a solution regeneration filler 14, a solution pump 17 and a water tank 15, wherein the solution regeneration spray row 13 is arranged above the solution regeneration filler 14 and below the axial flow fan 10, the water tank 15 is arranged below the solution regeneration filler 14, the solution pump is arranged inside the water tank 15 and connected with an inlet of the solar heat collection device 5 through a pipeline, and an outlet of the solar heat collection device 5 is connected with the solution regeneration spray row 13 through a pipeline. The solution regeneration section and the solution heat absorption section share the same water basin 15.
The vapor compression heat pump unit comprises a compressor 19, an exhaust pipe 20, a finned condenser 21, a drying filter 24, an expansion valve 25 and a titanium tube evaporator 26, the heat pump condenser is the finned condenser 21, the finned condenser 21 is arranged on one side of a blower 22 far away from a fresh air outlet 23, and the compressor 19 is arranged between a fresh air return heat exchanger 27 and the finned condenser 21. The titanium tube evaporator 26 is provided with four connectors, the compressor 19 is connected with one connector through an air inlet pipe, the second connector is connected with the outlet of the finned condenser 21 through a pipeline, and the compressor 19 is connected with the inlet of the finned condenser 21 through an exhaust pipe 20. The expansion valve 25 and the dry filter 24 are sequentially arranged on a pipeline between the titanium tube evaporator 26 and the fin type condenser 21.
The remaining two interfaces of the titanium tube evaporator 26 are respectively connected with the solution heat absorption pump 16 and the solution heat absorption spray bank 7 through the first solution heat extraction pipeline 18 and the second solution heat extraction pipeline 6.
The working principle of the utility model is as follows:
in the winter heating working condition: outdoor fresh air enters from the fresh air inlet 2, is filtered by the filter 3, enters the fresh air return heat exchanger 27, is subjected to sensible heat exchange with the fresh air coming from the return air inlet 1 and filtered by the filter 3, is heated to a designed temperature by the fin type condenser 21 in the air supply section after the temperature of the fresh air is increased, and enters indoors through the fresh air outlet 23 under the conveying of the air feeder 22.
Indoor return air passes through the filter 3 from the return air inlet 1, is subjected to damp-heat exchange with outdoor fresh air in the fresh-return air heat exchanger 27, enters the solution heat-taking section after the temperature of the indoor return air is reduced, is subjected to total heat exchange with a solution from the solution heat-absorption spray row 7 in the solution heat-absorption filler 8, and is discharged to the outside through the return air outlet 9 under the action of the axial flow fan 10 after the temperature is reduced.
After the solution in the solution heat-taking section absorbs the total heat in the return air, the temperature of the solution rises, the solution falls into water 15, the solution passes through a solution heat-absorbing pump 16, enters a titanium tube evaporator 26 through a solution heat-taking pipeline I18, and the heat is transferred to a moving fin condenser 21 through a heat pump to heat fresh air. The cooled solution comes out from the titanium pipe evaporator 26, passes through the solution heat taking pipeline II6, passes through the solution heat absorption spray row 7, and is sprayed on the solution heat absorption filler 8 again to absorb heat from return air.
The solution after absorbing heat for many times absorbs moisture from the return air while getting heat, the concentration of the solution is reduced, and the solution passes through the solar heat collecting device 5 under the action of the solution pump 17, is used for heating the solution, is sprayed to 14 under the action of the solution regeneration spraying row 13, is subjected to heat and moisture exchange with the return air again, and is used for solution regeneration.
Compared with the prior art of the fresh air conditioning and heating unit, the utility model aims to provide the heat pump fresh air unit based on return air waste heat recovery, which can fully utilize return air waste heat, and can deeply take heat from return air through direct heat exchange, solution heat absorption and the like of the fresh air and the return air and then the heat pump to prepare hot air to supply the hot air to the indoor so as to meet the production process requirements or improve the production environment. The utility model combines the fresh air return heat exchange technology with the solution heat absorption, fully and efficiently utilizes the resource of return air waste heat, provides energy utilization efficiency, greatly reduces the energy cost of heating, is energy-saving and environment-friendly, and has strong practicability.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a hot-blast unit of heat pump based on return air waste heat recovery which characterized in that: the fresh air and return air integrated device comprises a shell (4), wherein a fresh air inlet (1), a fresh air outlet (23), a return air inlet (2) and a return air outlet (9) are respectively arranged on the shell (4), the fresh air inlet (1) and the return air inlet (2) are arranged on the same side of the shell (4), the fresh air outlet (23) is arranged on the other side of the shell (4), and the return air outlet (9) is arranged on the upper side of the shell (4); the filter (3), the fresh and return air heat exchanger (27), the solution heat absorption section, the solution regeneration section and the axial flow fan (10) are sequentially arranged in the shell (4) along the flowing direction of the return air after entering; a filter (3), a fresh air and return air heat exchanger (27), a heat pump condenser and a blower (22) are sequentially arranged in the shell (4) along the flowing direction of fresh air after entering; the top of the shell (4) is provided with a solar heat collection device (5), a steam compression type heat pump unit is further arranged inside the shell (4), and a heat pump condenser is located in the steam compression type heat pump unit.
2. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 1, characterized in that: the axial flow fan (10) is arranged below the return air outlet (9), and the blower (22) is arranged at the fresh air outlet (23).
3. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 1, characterized in that: the return air inlet (2) is arranged above the fresh air inlet (1).
4. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 1, characterized in that: the filter (3) is arranged at the fresh air inlet (1) and the return air inlet (2), and the fresh air and return air heat exchanger (27) is arranged at one side, away from the fresh air inlet (1) and the return air inlet (2), of the filter (3).
5. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 1, characterized in that: the solution heat absorption section and the solution regeneration section are arranged on the upper layer inside the shell (4), and the solution regeneration section is located on one side, far away from the return air inlet (2), of the solution heat absorption section.
6. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 5, characterized in that: the solution heat absorption section comprises a solution heat absorption pump (16), a solution heat absorption spray row (7), a solution heat absorption filler (8) and a water tank (15), the solution heat absorption spray row (7) is arranged above the solution heat absorption filler (8), the water tank (15) is arranged below the solution heat absorption filler (8), and the solution heat absorption pump (16) is arranged inside the water tank (15).
7. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 5, characterized in that: the solution regeneration section comprises a solution regeneration spray row (13), a solution regeneration filler (14), a solution pump (17) and a water tank (15), wherein the solution regeneration spray row (13) is arranged above the solution regeneration filler (14) and is positioned below the axial flow fan (10), the water tank (15) is arranged below the solution regeneration filler (14), the solution pump is arranged inside the water tank (15), the solution pump is connected with an inlet of the solar heat collection device (5) through a pipeline, and an outlet of the solar heat collection device (5) is connected with the solution regeneration spray row (13) through a pipeline.
8. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 6, characterized in that: the steam compression heat pump unit comprises a compressor (19), an exhaust pipe (20), a finned condenser (21), a drying filter (24), an expansion valve (25) and a titanium pipe evaporator (26), the finned condenser (21) is arranged on one side, away from a fresh air outlet (23), of an air feeder (22), and the compressor (19) is arranged between a fresh air return heat exchanger (27) and the finned condenser (21).
9. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 8, characterized in that: the titanium tube evaporator (26) is provided with four interfaces, the compressor (19) is connected with one of the interfaces through an air inlet pipe, the second interface is connected with the outlet of the finned condenser (21) through a pipeline, and the compressor (19) is connected with the inlet of the finned condenser (21) through an exhaust pipe (20); the expansion valve (25) and the drying filter (24) are sequentially arranged on a pipeline between the titanium tube evaporator (26) and the fin type condenser (21).
10. The heat pump hot air unit based on return air waste heat recovery as claimed in claim 9, characterized in that: the remaining two interfaces of the titanium tube evaporator (26) are respectively connected with a solution heat absorption pump (16) and a solution heat absorption spray bank (7) through a first solution heat absorption pipeline (18) and a second solution heat absorption pipeline (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123098592.XU CN216644416U (en) | 2021-12-10 | 2021-12-10 | Hot-blast unit of heat pump based on return air waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123098592.XU CN216644416U (en) | 2021-12-10 | 2021-12-10 | Hot-blast unit of heat pump based on return air waste heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216644416U true CN216644416U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123098592.XU Active CN216644416U (en) | 2021-12-10 | 2021-12-10 | Hot-blast unit of heat pump based on return air waste heat recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216644416U (en) |
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2021
- 2021-12-10 CN CN202123098592.XU patent/CN216644416U/en active Active
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