CN219433624U - Waste heat recovery device of heat pump drying system - Google Patents
Waste heat recovery device of heat pump drying system Download PDFInfo
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- CN219433624U CN219433624U CN202320870131.XU CN202320870131U CN219433624U CN 219433624 U CN219433624 U CN 219433624U CN 202320870131 U CN202320870131 U CN 202320870131U CN 219433624 U CN219433624 U CN 219433624U
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- drying room
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to the field of heat pump drying equipment, in particular to a waste heat recovery device of a heat pump drying system, which comprises a drying room and a hot air system for providing a heat source, wherein the hot air system is arranged on one side of the drying room, and the waste heat recovery device comprises the following components: an air inlet pipeline communicated with the interior of the drying room is arranged on the drying room, and the air inlet pipeline is positioned at the bottom of the drying room; the drying room is provided with a collecting cover for collecting high-temperature high-humidity waste air of the drying room, the collecting cover is positioned at the top of the drying room, and the collecting cover completely covers the top of the drying room; the collecting cover is provided with an air outlet pipeline communicated with the inside of the collecting cover; the drying system is provided with the recovery device, the air inlet of the evaporation side of the unit is the wet and hot waste gas after cooling through the heat development exchanger, and meanwhile, the temperature of the air inlet of the condensation side of the unit is increased to be higher air through the heat development exchanger, so that the heating effect of the heat pump unit is improved, and the device also has the advantages of convenience in operation and easiness in implementation.
Description
Technical Field
The utility model relates to the field of heat pump drying equipment, in particular to a waste heat recovery device of a heat pump drying system.
Background
The heat pump drying unit mainly comprises an evaporator, a compressor, a condenser and an expansion valve, and the thermodynamic cycle process of evaporation (absorbing heat in an outdoor environment), compression, condensation (releasing heat in an indoor drying room), throttling and re-evaporation is continuously completed by the refrigerant, so that the heat in an external low-temperature environment is transferred into the drying room, and the refrigerant circularly flows in the system under the action of the compressor.
The applicant researches find that the existing directly-heated heat pump drying equipment is generally of an open type. In the process of drying materials, heat is directly discharged into the air and is not effectively utilized, so that heat loss and waste are caused. Particularly in areas where the ambient temperature is low, the operating efficiency of the heat pump is very low.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a waste heat recovery device of a heat pump drying system, wherein the waste heat recovery device is arranged in the drying system and is conveyed to a heat pump unit to be utilized, air inlet at the evaporation side of the unit is cooled wet and hot waste gas through a heat development device, and meanwhile, the temperature of the air inlet at the condensation side of the unit is improved to be higher air by the heat development device, so that the drying system is more efficient.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a waste heat recovery device of a heat pump drying system, which comprises a drying room and a hot air system for providing a heat source, wherein the hot air system is arranged at one side of the drying room, and the waste heat recovery device comprises a heat pump drying system, wherein the heat pump drying system comprises a heat pump and a heat pump, wherein the heat pump drying system comprises a heat pump, a heat pump and a heat supply system, wherein the heat pump is arranged at one side of the heat pump drying room: an air inlet pipeline communicated with the interior of the drying room is arranged on the drying room, and the air inlet pipeline is positioned at the bottom of the drying room; the drying room is provided with a collecting cover for collecting high-temperature high-humidity waste air of the drying room, the collecting cover is positioned at the top of the drying room, and the collecting cover completely covers the top of the drying room; the collecting cover is provided with an air outlet pipeline communicated with the inside of the collecting cover; the hot air system specifically comprises: the drying room comprises a shell, a sensible heat exchanger, an air inlet port and a heat pump unit, wherein the shell is horizontally arranged at one side of the drying room, and the sensible heat exchanger is arranged on the shell and is positioned in the shell; the heat pump unit is also arranged in the shell; the heat development exchanger is provided with at least two air inlets and two air outlets; the shell is also provided with the air inlet port, and the air inlet port conveys natural air to one air inlet of the heat-displaying exchanger through a pipeline; the air outlet pipeline is used for conveying high-temperature and high-humidity waste air to the other air inlet of the heat development exchanger through a pipeline; one air outlet of the heat-displaying exchanger discharges damp and hot waste gas, and the damp and hot waste gas is conveyed to an air inlet end of the heat pump unit through a pipeline; and the other air outlet of the heat exchanger discharges air with higher temperature, and the air with higher temperature is conveyed to the air outlet end of the heat pump unit through a pipeline.
In a preferred technical scheme of the utility model, the heat pump unit specifically comprises: the evaporator is arranged in the shell, the condenser is connected with the evaporator through two pipelines, one pipeline is provided with the compressor, and the other pipeline is provided with the throttle valve.
In the preferred technical scheme of the utility model, the evaporation fan is arranged at the outer wall of the shell, and the evaporation fan can rapidly discharge the waste gas generated by the operation of the heat pump unit from the shell.
In the preferred technical scheme of the utility model, a condensing fan is arranged at the communication part of the shell and the air inlet pipeline, and the condensing fan can rapidly discharge new hot air generated by the operation of the heat pump unit into the drying room through the air inlet pipeline.
The beneficial effects of the utility model are as follows:
(1) When the drying system is used, the waste gas recovery device is arranged in the drying system, waste gas is conveyed to the heat pump unit to be utilized, the air inlet at the evaporation side of the unit is the cooled wet and hot waste gas through the heat development exchanger, and meanwhile, the temperature of the air inlet at the condensation side of the unit is increased to be higher air through the heat development exchanger, so that the heating effect of the heat pump unit is improved.
(2) When the hot air system is used, the hot air system supplies heat to the drying room, hot air continuously enters the drying room, and after the hot air exchanges heat and dries materials in the drying room, the hot air can gather upwards and is collected by the collecting cover, and the air flow with waste heat entering the collecting cover is guided into the hot air system through the air inlet pipeline.
(3) When the heat pump unit is used, after the hot air with residual temperature enters the heat-displaying exchanger, the hot air can be intersected with natural air entering the shell through the air inlet port for temperature change, so that the hot air is cooled to a reasonable range which can be absorbed by the evaporating side of the heat pump unit and then is guided into the evaporator, and the heat pump unit can obtain higher heating capacity; finally, the sensible heat exchanger can also transmit hot air with higher temperature than natural air to the condenser end of the heat pump unit, thereby further improving the heating effect of the heat pump unit.
Drawings
Fig. 1 is a schematic cross-sectional view of a heat recovery device of a heat pump drying system according to the present utility model.
Fig. 2 is a schematic cross-sectional view of the hot air system of the present utility model.
Fig. 3 is a schematic cross-sectional structure of the drying room of the present utility model.
Fig. 4 is a schematic view of the internal gas flow direction of the hot air system of the present utility model.
The reference numerals in the above figures illustrate:
1. a drying room; 2. a hot air system; 3. a heat pump unit; 10. an air inlet pipeline; 11. an air outlet pipeline; 12. a collection cover; 20. a housing; 21. a sensible heat exchanger; 22. an air inlet port; 23. an evaporation fan; 24. a condensing fan; 30. an evaporator; 31. a compressor; 32. a condenser; 33. a throttle valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more clear and clear, the present utility model will be further described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 4, the embodiment discloses a waste heat recovery device of a heat pump drying system, which comprises a drying room 1 and a hot air system 2 for providing a heat source, wherein the hot air system 2 is arranged at one side of the drying room 1, an air inlet pipeline 10 communicated with the inside of the drying room 1 is arranged on the drying room 1, and the air inlet pipeline 10 is positioned at the bottom of the drying room 1; the drying room 1 is provided with a collecting cover 12 for collecting high-temperature high-humidity waste air in the drying room 1, the collecting cover 12 is positioned at the top of the drying room 1, and the collecting cover 12 completely covers the top of the drying room 1; the collecting cover 12 is provided with an air outlet pipeline 11 communicated with the inside of the collecting cover 12; the hot air system 2 specifically includes: the drying room comprises a shell 20, a sensible heat exchanger 21, an air inlet port 22 and a heat pump unit 3, wherein the shell 20 is horizontally arranged on one side of the drying room 1, and the sensible heat exchanger 21 is arranged on the shell 20 and is positioned in the shell 20; the heat pump unit 3 is also arranged in the shell 20; the sensible heat exchanger 21 is provided with at least two air inlets and two air outlets; an air inlet port 22 is also arranged on the shell 20, and the air inlet port 22 conveys natural wind to one air inlet of the sensible heat exchanger 21 through a pipeline; the air outlet pipeline 11 is used for conveying high-temperature high-humidity waste air to the other air inlet of the heat-displaying exchanger 21 through a pipeline; one of the air outlets of the heat-development exchanger 21 discharges damp and hot waste gas, and the damp and hot waste gas is conveyed to the air inlet end of the heat pump unit 3 through a pipeline; the other air outlet of the heat exchanger 21 discharges air with higher temperature, and the air with higher temperature is conveyed to the air outlet end of the heat pump unit 3 through a pipeline;
when the air conditioner is used, firstly, the hot air system 2 supplies heat to the drying room 1, so that hot air continuously enters the drying room 1, and after the hot air exchanges heat and dries materials in the drying room 1, the hot air is gathered upwards and is collected by the collecting cover 12, and the air flow with waste heat entering the collecting cover 12 is guided into the hot air system 2 through the air inlet pipeline 10; then, when the hot air with residual temperature enters the heat-displaying exchanger 21, the hot air is intersected with natural air entering the shell 20 through the air inlet port 22 for temperature change, so that the temperature of the hot air is reduced to a reasonable range which can be absorbed by the evaporation side of the heat pump unit 3, and then the hot air is guided into the evaporator 30, so that the heat pump unit 2 obtains higher heating capacity; finally, the sensible heat exchanger 21 can also transmit hot air with a temperature higher than that of natural air to the condenser 32 end of the heat pump unit 3, thereby further improving the heating effect of the heat pump unit 3.
As shown in fig. 2, the heat pump unit 3 specifically includes: the evaporator 30, the compressor 31, the condenser 32 and the throttle valve 33, wherein the evaporator 30 is arranged in the shell 20, the evaporator 30 is connected with the condenser 32 through two pipelines, one pipeline is provided with the compressor 31, and the other pipeline is provided with the throttle valve 33;
when in use, the evaporator 30 continuously absorbs heat of outdoor environment and recovered waste air, and after the heat is compressed by the compressor 31, hot air is discharged to the air inlet pipeline 10 through the condenser 32, so that hot air flows into the drying room 1.
As shown in fig. 2, an evaporation fan 23 is disposed at the outer wall of the casing 20, and the evaporation fan 23 can rapidly discharge the exhaust gas generated by the operation of the heat pump unit 3 from the casing 20.
As shown in fig. 2, a condensing fan 24 is arranged at the communication position between the casing 20 and the air inlet pipeline 10, and the condensing fan 24 can rapidly discharge new hot air generated by the operation of the heat pump unit 3 into the drying room 1 through the air inlet pipeline 10.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (4)
1. The utility model provides a heat pump drying system's waste heat recovery device, includes stoving room (1) and provides hot air system (2) of heat source, hot air system (2) set up one side in stoving room (1), its characterized in that:
an air inlet pipeline (10) communicated with the interior of the drying room (1) is arranged on the drying room (1), and the air inlet pipeline (10) is positioned at the bottom of the drying room (1);
the drying room (1) is provided with a collecting cover (12) for collecting high-temperature and high-humidity waste air in the drying room (1), the collecting cover (12) is positioned at the top of the drying room (1), and the collecting cover (12) completely covers the top of the drying room (1);
an air outlet pipeline (11) communicated with the inside of the collecting cover (12) is arranged on the collecting cover (12);
the hot air system (2) specifically comprises: the drying room comprises a shell (20), a sensible heat exchanger (21), an air inlet port (22) and a heat pump unit (3), wherein the shell (20) is horizontally arranged on one side of the drying room (1), and the sensible heat exchanger (21) is arranged on the shell (20) and is positioned in the shell (20); the heat pump unit (3) is further arranged in the shell (20);
the sensible heat exchanger (21) is provided with at least two air inlets and two air outlets;
the shell (20) is also provided with the air inlet port (22), and the air inlet port (22) is used for conveying natural wind to one air inlet of the sensible heat exchanger (21) through a pipeline;
the air outlet pipeline (11) is used for conveying high-temperature high-humidity waste air to the other air inlet of the sensible heat exchanger (21) through a pipeline;
one air outlet of the heat-displaying exchanger (21) discharges damp and hot waste gas, and the damp and hot waste gas is conveyed to an air inlet end of the heat pump unit (3) through a pipeline;
the other air outlet of the heat exchanger (21) discharges air with higher temperature, and the air with higher temperature is conveyed to the air outlet end of the heat pump unit (3) through a pipeline.
2. The heat recovery device of a heat pump drying system according to claim 1, wherein: the heat pump unit (3) specifically comprises: the evaporator (30) is arranged in the shell (20), the evaporator (30) is connected with the condenser (32) through two pipelines, one pipeline is provided with the compressor (31), and the other pipeline is provided with the throttle valve (33).
3. The heat recovery device of a heat pump drying system according to claim 1, wherein: an evaporation fan (23) is arranged on the outer wall of the machine shell (20), and the evaporation fan (23) can rapidly discharge waste gas generated by the operation of the heat pump unit (3) from the interior of the machine shell (20).
4. The heat recovery device of a heat pump drying system according to claim 1, wherein: the novel hot air drying device is characterized in that a condensing fan (24) is arranged at the communication position of the shell (20) and the air inlet pipeline (10), and the condensing fan (24) can rapidly discharge new hot air generated by the operation of the heat pump unit (3) into the drying room (1) through the air inlet pipeline (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320870131.XU CN219433624U (en) | 2023-04-18 | 2023-04-18 | Waste heat recovery device of heat pump drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320870131.XU CN219433624U (en) | 2023-04-18 | 2023-04-18 | Waste heat recovery device of heat pump drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219433624U true CN219433624U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320870131.XU Active CN219433624U (en) | 2023-04-18 | 2023-04-18 | Waste heat recovery device of heat pump drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219433624U (en) |
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2023
- 2023-04-18 CN CN202320870131.XU patent/CN219433624U/en active Active
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