CN211977524U - Drying water source heat pump system based on waste heat recovery - Google Patents
Drying water source heat pump system based on waste heat recovery Download PDFInfo
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- CN211977524U CN211977524U CN202020276080.4U CN202020276080U CN211977524U CN 211977524 U CN211977524 U CN 211977524U CN 202020276080 U CN202020276080 U CN 202020276080U CN 211977524 U CN211977524 U CN 211977524U
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- water
- heat pump
- waste heat
- water source
- hot air
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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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- 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 a drying water source heat pump system based on waste heat recovery, include: the drying machine comprises a drying machine and a water source heat pump hot air unit, wherein the water source heat pump hot air unit comprises a water side evaporator and a finned condenser, the water side evaporator is positioned at the source side of the water source heat pump hot air unit, and a compressor and a throttling device are respectively arranged between the water side evaporator and the finned condenser; the air outlet of the dryer is provided with a waste heat recovery water coil pipe, the waste heat recovery water coil pipe is respectively connected with a water side evaporator through a water inlet pipe and a water outlet pipe, and the heat pump air outlet of the water source heat pump hot air unit is connected with the drying air inlet of the dryer through an air pipe pipeline. The waste heat in the exhaust air of the dryer is recovered through the waste heat recovery water coil pipe, and then the recovered waste heat is used as a heat source to generate high-temperature hot air through the water source heat pump hot air unit to be supplied to the dryer, so that the requirement of the grain drying process is met.
Description
Technical Field
The utility model relates to a waste heat recovery system especially relates to a drying water source heat pump system based on waste heat recovery.
Background
In the process of drying by using a grain drying heat pump, low-temperature air is often directly heated to more than 60 ℃ from a low-temperature air environment. The air source heat pump system applied in the current industry has the following problems:
1. with the reduction of the environmental temperature, the heating capacity of the main machine is reduced, so that the air supply temperature is insufficient;
2. the fin evaporator of the air source heat pump is easy to frost in a low-temperature environment or a high-humidity environment, and frequent defrosting is needed for a unit, so that the operation energy efficiency of the system is reduced, and the air supply temperature of the air source heat pump is seriously fluctuated, thereby seriously affecting the drying quality of grains;
3. due to the particularity of the using environment of the air source heat pump for drying the grains, a large amount of dust exists in inlet air evaporated by the fins, so that the fins are easily dirtied and blocked, the heat exchange efficiency of the heat exchanger is influenced, and even the fins are frosted under severe conditions, so that a main machine is stopped, and the system is paralyzed;
4. a large amount of hot and wet tail gas can be discharged by the dryer in the drying process of the grain drying heat pump, and is generally directly discharged to the atmospheric environment, so that the grain drying heat pump is not fully recycled, and serious energy waste is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model provides a drying water source heat pump system based on waste heat recovery, which has stable operation condition, overcomes the problems of capacity attenuation and frosting of an air source at low ambient temperature, greatly improves the energy efficiency ratio of a main machine, and has uniform and stable air supply temperature; the system simultaneously avoids the problems of the fin evaporator, such as reduced host capability, low energy efficiency ratio, low stability and low reliability caused by dust and dirt blockage; and the waste heat of the tail gas of the dryer is fully recycled, so that the effects of energy conservation and environmental protection are really achieved.
The utility model provides a technical scheme that its technical problem adopted is: a drying water source heat pump system based on waste heat recovery comprises: the drying machine comprises a drying machine and a water source heat pump hot air unit, wherein the water source heat pump hot air unit comprises a water side evaporator and a finned condenser, the water side evaporator is positioned at the source side of the water source heat pump hot air unit, and a compressor and a throttling device are respectively arranged between the water side evaporator and the finned condenser;
the air outlet of the dryer is provided with a waste heat recovery water coil pipe, the waste heat recovery water coil pipe is respectively connected with a water side evaporator through a water inlet pipe and a water outlet pipe, and a heat pump air outlet ventilation pipeline of the water source heat pump hot air unit is connected with a drying air inlet of the dryer.
In a preferred embodiment of the present invention, a heat exchange circulating water pump is disposed on the water inlet pipe.
The utility model has the advantages that: the waste heat in the exhaust air of the dryer is recovered through the waste heat recovery water coil pipe, and then the recovered waste heat (hot water) is used as a heat source to supply high-temperature hot air generated by the water source heat pump hot air unit to the dryer, so that the requirement of the drying process of grains is met. The system has the advantages of stable operation condition, high running reliability of the host, uniform and stable air supply temperature and high system running energy efficiency ratio.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
As shown in fig. 1, a heat pump system for drying water source based on waste heat recovery includes: a dryer 1 and a water source heat pump hot air unit 4.
The water source heat pump hot air unit 4 comprises a water side evaporator 4-1 and a finned condenser 4-4, the water side evaporator 4-1 is positioned at the source side of the water source heat pump hot air unit 4, and a compressor 4-2 and a throttling device 4-3 are respectively arranged between the water side evaporator 4-1 and the finned condenser 4-4;
the waste heat recovery water-cooled dryer is characterized in that a waste heat recovery water coil 2 is arranged in an exhaust channel of the dryer 1, the waste heat recovery water coil 2 is connected with a water side evaporator 4-1 through a water inlet pipe 2-1 and a water outlet pipe 2-2 respectively, and a heat pump air outlet of the water source heat pump hot air unit 4 is connected with a drying air inlet of the dryer through a ventilation pipeline 5.
And the water inlet pipe 2-1 is provided with a heat exchange circulating water pump 3 for providing power for the water inlet of the waste heat recovery water coil pipe.
The finned condenser 4-4 is arranged at the use side of the water source heat pump hot air unit 4. And the water source heat pump hot air unit is also provided with a heat pump air inlet opposite to the heat pump air outlet.
Tail gas discharged by the dryer 1 enters an exhaust channel 6, heat in exhaust air is absorbed by a waste heat recovery water coil 2, then water in the exhaust air is heated, the heated water is used as a heat source of a water source heat pump and enters a water side evaporator 4-1 through a water inlet pipe, the water side evaporator 4-1 is evaporated by a refrigerant to absorb heat, the refrigerant absorbing heat is discharged to a compressor 4-2 from an outlet of the water side evaporator 4-1, the refrigerant is discharged to a fin type condenser 4-4 after being compressed and pressurized, after condensation and heat release, fresh air at an air inlet of the heat pump is heated and then discharged through an air outlet of the heat pump to be sent to the dryer 1, and the purpose of drying grains is achieved. The refrigerant after condensing and releasing heat is throttled and decompressed by the throttling device 4-3 and then enters the water side evaporator 4-1 to form a reverse Carnot thermodynamic cycle for heating.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (2)
1. The utility model provides a drying water source heat pump system based on waste heat recovery which characterized in that includes: the drying machine comprises a drying machine and a water source heat pump hot air unit, wherein the water source heat pump hot air unit comprises a water side evaporator and a finned condenser, the water side evaporator is positioned at the source side of the water source heat pump hot air unit, and a compressor and a throttling device are respectively arranged between the water side evaporator and the finned condenser;
the air outlet of the dryer is provided with a waste heat recovery water coil pipe, the waste heat recovery water coil pipe is respectively connected with a water side evaporator through a water inlet pipe and a water outlet pipe, and a heat pump air outlet ventilation pipeline of the water source heat pump hot air unit is connected with a drying air inlet of the dryer.
2. The waste heat recovery-based drying water source heat pump system as claimed in claim 1, wherein a heat exchange circulating water pump is arranged on the water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020276080.4U CN211977524U (en) | 2020-03-09 | 2020-03-09 | Drying water source heat pump system based on waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020276080.4U CN211977524U (en) | 2020-03-09 | 2020-03-09 | Drying water source heat pump system based on waste heat recovery |
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| Publication Number | Publication Date |
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| CN211977524U true CN211977524U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020276080.4U Active CN211977524U (en) | 2020-03-09 | 2020-03-09 | Drying water source heat pump system based on waste heat recovery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091310A (en) * | 2021-04-06 | 2021-07-09 | 江苏华源建筑设计研究院股份有限公司 | Water source heat pump drying system |
| CN113830984A (en) * | 2021-10-23 | 2021-12-24 | 江苏天舒电器有限公司 | Disc type heat pump sludge drying system with heat pipe recovery |
-
2020
- 2020-03-09 CN CN202020276080.4U patent/CN211977524U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091310A (en) * | 2021-04-06 | 2021-07-09 | 江苏华源建筑设计研究院股份有限公司 | Water source heat pump drying system |
| CN113830984A (en) * | 2021-10-23 | 2021-12-24 | 江苏天舒电器有限公司 | Disc type heat pump sludge drying system with heat pipe recovery |
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Address after: No.116 Jinshan Road, Yangzhou Development Zone, Jiangsu Province 225000 Patentee after: Sanop new energy (Jiangsu) Co., Ltd Address before: No.116 Jinshan Road, Yangzhou Development Zone, Jiangsu Province 225000 Patentee before: Baolianhua seven color new energy (Jiangsu) Co.,Ltd. |