CN111189316A - Grain drying system based on heat pipe waste heat recovery type water source heat pump - Google Patents
Grain drying system based on heat pipe waste heat recovery type water source heat pump Download PDFInfo
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- CN111189316A CN111189316A CN202010094545.9A CN202010094545A CN111189316A CN 111189316 A CN111189316 A CN 111189316A CN 202010094545 A CN202010094545 A CN 202010094545A CN 111189316 A CN111189316 A CN 111189316A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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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
Abstract
A grain drying system based on a heat pipe waste heat recovery type water source heat pump belongs to the technical field of grain processing equipment and is formed by connecting a dryer, an exhaust channel, an air inlet channel, a heat pipe heat exchange device, a low-temperature heat pipe, a fresh air port, an ash room, a spraying device, a spraying water pipe, a sedimentation tank, a water source heat pump water inlet pipe, a tap water replenishing pipe, a filter, an evaporator, an expansion valve, a compressor, a condenser and an air supply pipeline. The environment is not polluted, and the problems of high energy consumption and pollution discharge of the traditional drying mode are solved.
Description
Technical Field
The invention belongs to the technical field of grain processing equipment, relates to a grain drying heat pump system, and particularly relates to a heat pipe-based waste heat recovery type water source heat pump grain drying system.
Background
In recent years, with the intensive and large-scale development of grain planting, the degree of mechanization of agricultural production is higher and higher, the amount of grains is large, the moisture content is high, centralized airing treatment is difficult, and the grains are easy to mildew and cause loss. According to the investigation of the grain agriculture organization of the united nations, the loss of the global grains caused by drying and improper storage is as high as 5-10%. In the face of large-batch and high-moisture grains, how to reduce the grain loss after harvesting becomes a very difficult task, and the realization of efficient, safe and economic drying of the grains has a profound significance on grain safety.
The common grain drying equipment usually adopts coal, oil or wood as combustion materials, generates a large amount of smoke and waste gas, causes great pollution to the environment and dried objects, and is time-consuming and labor-consuming. Compared with the prior art, the grain heat pump dryer has the characteristics of high efficiency, energy conservation, environmental protection, low drying temperature, high dehydration rate, sanitation, safety and the like. The heat pump drying technology is a mild and natural drying mode, can retain the nutrient components in the dried substance to the maximum extent and does not damage the original structure. Because the required drying time is short, the influence on the germination rate of the grains is low. The heat pump system is used for drying, so that the pollution of waste gas and waste residue caused by combustion can be avoided. The heat pump drying is a novel drying technology, and realizes the transfer of heat in a low-temperature heat source to a high-temperature heat source at the cost of consuming part of high-grade energy. The heat pump drying is becoming a direction for the development of grain drying technology and equipment in China. However, the heat pump drying process generates a large amount of hot exhaust air, which is generally directly exhausted to the atmosphere. The exhaust air contains a large amount of dust and impurities, and the direct exhaust causes pollution to the atmospheric environment and is not environment-friendly; and the exhaust air has high temperature and is directly exhausted into the atmosphere to cause energy waste.
At present, partial heat pump type drying systems and dryers in China directly place evaporators of the drying systems and dryers in an exhaust environment, hot air exhausted by the dryers is used as a heat source, and exhaust air contains a large amount of dust and impurities, so that the exhaust air needs to be subjected to dust removal treatment or the evaporators need to be cleaned at intervals, waste of waste heat resources is caused, and meanwhile, the operation cost is relatively high.
Disclosure of Invention
The invention aims to provide a heat pipe waste heat recovery type water source heat pump grain drying system, which aims at solving the problems that the air environment is polluted by a large amount of dust and impurities contained in the exhaust air of the existing heat pump type drying system, the environment is not environment-friendly, the exhaust air temperature is high, and the energy is wasted due to the exhaust of the air.
The technical scheme of the invention is as follows: the utility model provides a grain drying system based on heat pipe waste heat recovery type water source heat pump which characterized in that: the drying system consists of a dryer, an exhaust channel, an air inlet channel, a first heat pipe heat exchange device, a second heat pipe heat exchange device, a low-temperature heat pipe, a fresh air port, an ash room, a spraying device, a spraying water pipe, a sedimentation tank, a water source heat pump water inlet pipe, a tap water replenishing pipe, a filter, an evaporator, an expansion valve, a compressor, a condenser and an air supply pipeline; the air outlet of the dryer is connected to the air inlet of the ash room through an air exhaust channel, a first heat pipe heat exchange device and a second heat pipe heat exchange device are arranged in the air exhaust channel, a spray device is arranged in the ash room, a sedimentation tank is arranged at the bottom of the ash room, one side of the sedimentation tank is communicated with a tap water replenishing pipe, the bottom of the sedimentation tank is communicated with the water inlet of a filter through a water source heat pump water inlet pipe, the water outlet of the filter is communicated with an evaporator through a water pipe, the evaporator is communicated with a compressor through a refrigeration circulating pipe, the compressor is communicated with a condenser through the refrigeration circulating pipe, the condenser is communicated with an expansion valve through the refrigeration circulating pipe, the expansion valve is communicated with the evaporator through the refrigeration circulating pipe, the evaporator, the compressor, the condenser and the expansion valve form a refrigeration circulating loop, the condenser is placed in an air supply pipeline, and the air supply pipeline is communicated with an air inlet of the dryer.
Be equipped with spray set in the ash room, one side in ash room is equipped with ash room air exit.
And a circulating pump is arranged on a water pipeline between the filter and the evaporator.
The first heat pipe heat exchange device and the second heat pipe heat exchange device are arranged in series, and a plurality of low-temperature heat pipes are arranged in the first heat pipe heat exchange device and the second heat pipe heat exchange device respectively.
The first heat pipe heat exchange device and the second heat pipe heat exchange device are divided into an upper cavity and a lower cavity, the upper cavity is respectively communicated with the fresh air inlet and the air inlet channel, and the lower cavity is respectively communicated with the air exhaust channel and the ash room.
The invention has the beneficial effects that: the invention provides a grain drying system based on a heat pipe waste heat recovery type water source heat pump, which is characterized in that the whole drying system is formed by connecting a dryer, an exhaust channel, an air inlet channel, a first heat pipe heat exchange device, a second heat pipe heat exchange device, a low-temperature heat pipe, a fresh air port, an ash room, a spraying device, a spraying water pipe, a sedimentation tank, a water source heat pump water inlet pipe, a tap water replenishing pipe, a filter, an evaporator, an expansion valve, a compressor, a condenser and an air supply pipeline, the grain drying system is reasonable in structure, heat exchange is carried out between the exhaust air of the dryer and the fresh air, the fresh air is preheated, electric energy is not consumed in the process, the exhaust air cooled by spraying low-temperature cold water is further extracted as the exhaust waste heat, the low-temperature cold water is used as the heat source of the water source heat pump after being heated, the preheated fresh, the method comprises the steps of utilizing a spraying method to carry out spraying dust removal on exhaust air of a grain dryer, carrying out heat exchange on the exhaust air and spray water, discharging generated sewage with a certain temperature into a sedimentation tank, and simultaneously discharging the exhaust air containing a large amount of dust and impurities into the atmosphere through an air outlet of an ash room after the exhaust air is subjected to spraying dust removal.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
In the figure: the system comprises a dryer 1, an exhaust channel 2, an air inlet channel 3, a first heat pipe heat exchange device 4, a second heat pipe heat exchange device 5, a low-temperature heat pipe 6, a fresh air inlet 7, an ash room 8, a spraying device 9, an ash room air outlet 10, a spraying water pipe 11, a sedimentation tank 12, a water source heat pump water inlet pipe 13, a tap water replenishing pipe 14, a filter 15, a circulating pump 16, an evaporator 17, an expansion valve 18, a compressor 19, a condenser 20 and an air supply pipeline 21.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1, a grain drying system based on a heat pipe waste heat recovery type water source heat pump comprises a dryer 1, an exhaust channel 2, an air inlet channel 3, a first heat pipe heat exchange device 4, a second heat pipe heat exchange device 5, a low-temperature heat pipe 6, a fresh air inlet 7, an ash room 8, a spraying device 9, a spraying water pipe 11, a sedimentation tank 12, a water source heat pump water inlet pipe 13, a tap water replenishing pipe 14, a filter 15, an evaporator 17, an expansion valve 18, a compressor 19, a condenser 20 and an air supply pipeline 21; an air outlet of the dryer 1 is connected to an air inlet of an ash chamber 8 through an air exhaust channel 2, a first heat pipe heat exchange device 4 and a second heat pipe heat exchange device 5 are arranged in the air exhaust channel 2, a spraying device 9 is arranged in the ash chamber 8, a sedimentation tank 12 is arranged at the bottom of the ash chamber, one side of the sedimentation tank 12 is communicated with a tap water replenishing pipe 14, the bottom of the sedimentation tank is communicated with a water inlet of a filter 15 through a water source heat pump water inlet pipe 13, a water outlet of the filter 15 is communicated with an evaporator 17 through a water pipe, the evaporator 17 is communicated with a compressor 19 through a refrigeration circulating pipe, the compressor 19 is communicated with a condenser 20 through a refrigeration circulating pipe, the condenser 20 is communicated with an expansion valve 18 through a refrigeration circulating pipe, the expansion valve 18 is communicated with the evaporator 17 through the refrigeration circulating pipe, the evaporator 17, the compressor 19, the condenser 20 and the, the condenser 20 is placed in a blast duct 21, and the blast duct 21 is communicated with an air inlet of the dryer 1.
As shown in fig. 1, a grain drying system based on a heat pipe waste heat recovery type water source heat pump is provided, wherein a spraying device 9 is arranged in an ash room 8, and an ash room air outlet 10 is arranged at one side of the ash room 8; a circulating pump 16 is arranged on a water pipeline between the filter 15 and the evaporator 17; the first heat pipe heat exchange device 4 and the second heat pipe heat exchange device 5 are arranged in series, and a plurality of low-temperature heat pipes 6 are respectively arranged in the first heat pipe heat exchange device 4 and the second heat pipe heat exchange device 5; the first heat pipe heat exchange device 4 and the second heat pipe heat exchange device 5 are divided into an upper cavity and a lower cavity, the upper cavity is respectively communicated with the fresh air inlet 7 and the air inlet channel 3, and the lower cavity is respectively communicated with the air exhaust channel 2 and the ash chamber 8.
As shown in fig. 1, a grain drying system based on a heat pipe waste heat recovery type water source heat pump has the following working principle: after being dried by hot air in the dryer 1, grains generate exhaust air with high relative temperature and containing a large amount of dust and impurities, and the exhaust air passes through the exhaust channel 2, the first heat pipe heat exchange device 4 and the second heat pipe heat exchange device 5 and then enters the dust room 8. In the lower cavities of the first heat pipe heat exchange device 4 and the second heat pipe heat exchange device 5, the evaporation ends of the low-temperature heat pipes 6 absorb the heat of the exhaust air, and the exhaust air enters the ash room 8 after the temperature of the exhaust air is reduced. Because the sectional area of the ash room 8 is suddenly increased, the horizontal flow speed of the exhaust air cooled by the heat pipe in the ash room 8 is obviously reduced, when the exhaust air containing a large amount of dust and impurities moves in the ash room 8, the spraying device 9 is started to spray water and spray dust, the exhaust air and the spray water exchange heat to generate sewage with a certain temperature, and the sewage is discharged into the sedimentation tank 12. The exhaust air after spraying and dust removal is directly discharged into the atmospheric environment through the air outlet 10 of the dust room, and the environmental pollution is avoided.
The sewage with a certain temperature in the sedimentation tank 12 is filtered by a filter 15 and then is pressed into an evaporator 17 under the pressure action of a circulating pump 16, the sewage with a certain temperature is used as a low-temperature heat source of the water source heat pump to carry out heat exchange with a refrigerating working medium in the evaporator 17, and the water after the heat exchange enters a spraying device 9 again through a spraying water pipe 11 to carry out spraying, dedusting and heat extraction, so that a heat extraction cycle of the water source heat pump is formed. The sedimentation tank 12 is connected with a tap water replenishing pipe 14 to ensure the water consumption required by spray water.
The refrigerant is vaporized into low-temperature low-pressure steam in the evaporator 17, the steam is changed into high-temperature high-pressure steam by the compressor 19 and then is discharged into the condenser 20, the heat is released in the condenser 20 and is changed into high-temperature high-pressure liquid, the liquid is throttled and decompressed by the expansion valve 18 and enters the evaporator 17 again to absorb heat and vaporize into low-temperature low-pressure gaseous refrigerant, and the refrigerant is sucked into the compressor 19 to achieve the purpose of circulating refrigeration. The refrigerating medium is subjected to four basic processes of evaporation, compression, condensation and throttling in the system to form a cycle.
Fresh air enters the upper cavities of the first heat pipe heat exchange device 4 and the second heat pipe heat exchange device 5 through the fresh air opening 7, and the condensation end of the low-temperature heat pipe 6 emits heat to preheat the fresh air. The preheated fresh air enters an air inlet of a condenser 19 through an air inlet channel 3 to exchange heat with a refrigeration working medium, and the generated high-temperature hot air is sent into a dryer 1 through an air supply channel 21 to dry grains, so that a drying cycle is realized, and the high-temperature and high-humidity exhaust waste heat containing dust and impurities generated by grain drying is fully recycled.
Claims (5)
1. The utility model provides a grain drying system based on heat pipe waste heat recovery type water source heat pump which characterized in that: the drying system consists of a dryer (1), an exhaust channel (2), an air inlet channel (3), a first heat pipe heat exchange device (4), a second heat pipe heat exchange device (5), a low-temperature heat pipe (6), a fresh air inlet (7), an ash room (8), a spraying device (9), a spraying water pipe (11), a sedimentation tank (12), a water source heat pump water inlet pipe (13), a tap water replenishing pipe (14), a filter (15), an evaporator (17), an expansion valve (18), a compressor (19), a condenser (20) and an air supply pipeline (21); the air outlet of the dryer (1) is connected to the air inlet of the ash room (8) through an air exhaust channel (2), a first heat pipe heat exchange device (4) and a second heat pipe heat exchange device (5) are arranged in the air exhaust channel (2), a spraying device (9) is arranged inside the ash room (8), a sedimentation tank (12) is arranged at the bottom of the ash room, one side of the sedimentation tank (12) is communicated with a tap water replenishing pipe (14), the bottom of the sedimentation tank is communicated with the water inlet of a filter (15) through a water source heat pump water inlet pipe (13), the water outlet of the filter (15) is communicated with an evaporator (17) through a water pipe, the evaporator (17) is communicated with a compressor (19) through a refrigeration circulating pipe, the compressor (19) is communicated with a condenser (20) through a refrigeration circulating pipe, the condenser (20) is communicated with an expansion valve (18) through a refrigeration circulating pipe, and the expansion valve (18) is communicated with the evaporator, the evaporator (17), the compressor (19), the condenser (20) and the expansion valve (18) form a refrigeration cycle loop, the evaporator (17) is communicated with the spraying device (9) through a spraying water pipe (11), the condenser (20) is placed in an air supply pipeline (21), and the air supply pipeline (21) is communicated with an air inlet of the dryer (1).
2. The heat pipe-based waste heat recovery type water source heat pump grain drying system as claimed in claim 1, wherein: be equipped with spray set (9) in ash room (8), one side in ash room (8) is equipped with ash room air exit (10).
3. The heat pipe-based waste heat recovery type water source heat pump grain drying system as claimed in claim 1, wherein: and a circulating pump (16) is arranged on a water pipeline between the filter (15) and the evaporator (17).
4. The heat pipe-based waste heat recovery type water source heat pump grain drying system as claimed in claim 1, wherein: the first heat pipe heat exchange device (4) and the second heat pipe heat exchange device (5) are arranged in series, and a plurality of low-temperature heat pipes (6) are respectively arranged in the first heat pipe heat exchange device (4) and the second heat pipe heat exchange device (5).
5. The heat pipe-based waste heat recovery type water source heat pump grain drying system as claimed in claim 1, wherein: the first heat pipe heat exchange device (4) and the second heat pipe heat exchange device (5) are divided into an upper cavity and a lower cavity, the upper cavity is respectively communicated with the fresh air inlet (7) and the air inlet channel (3), and the lower cavity is respectively communicated with the air exhaust channel (2) and the ash room (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010094545.9A CN111189316A (en) | 2020-02-16 | 2020-02-16 | Grain drying system based on heat pipe waste heat recovery type water source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010094545.9A CN111189316A (en) | 2020-02-16 | 2020-02-16 | Grain drying system based on heat pipe waste heat recovery type water source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111189316A true CN111189316A (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010094545.9A Pending CN111189316A (en) | 2020-02-16 | 2020-02-16 | Grain drying system based on heat pipe waste heat recovery type water source heat pump |
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| CN (1) | CN111189316A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964393A (en) * | 2020-08-21 | 2020-11-20 | 浙江有品生物科技有限公司 | Dust removal dehumidification heated air circulation drying system |
| CN114322370A (en) * | 2021-12-23 | 2022-04-12 | 佩高电子电器(德国)技术有限公司 | Heating system utilizing mine ventilation air energy heat pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010004059A (en) * | 1999-06-28 | 2001-01-15 | 황홍철 | Dryer using refrigcrator |
| CN101071050A (en) * | 2007-07-10 | 2007-11-14 | 王诗英 | Improved low temperature heat pipe heat exchanger |
| CN204987982U (en) * | 2015-07-27 | 2016-01-20 | 恒天重工股份有限公司 | Waste heat recovery device suitable for airflow dryer |
| CN206459472U (en) * | 2017-01-05 | 2017-09-01 | 天津市鑫霞烘干设备制造有限公司 | A kind of layer-stepping high efficiency medicinal material dryer |
| CN108759171A (en) * | 2018-07-18 | 2018-11-06 | 苏州聚焓新能源科技有限公司 | A kind of multi-stage, efficient heat recovery type water source heat pump grain drying machine |
-
2020
- 2020-02-16 CN CN202010094545.9A patent/CN111189316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010004059A (en) * | 1999-06-28 | 2001-01-15 | 황홍철 | Dryer using refrigcrator |
| CN101071050A (en) * | 2007-07-10 | 2007-11-14 | 王诗英 | Improved low temperature heat pipe heat exchanger |
| CN204987982U (en) * | 2015-07-27 | 2016-01-20 | 恒天重工股份有限公司 | Waste heat recovery device suitable for airflow dryer |
| CN206459472U (en) * | 2017-01-05 | 2017-09-01 | 天津市鑫霞烘干设备制造有限公司 | A kind of layer-stepping high efficiency medicinal material dryer |
| CN108759171A (en) * | 2018-07-18 | 2018-11-06 | 苏州聚焓新能源科技有限公司 | A kind of multi-stage, efficient heat recovery type water source heat pump grain drying machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964393A (en) * | 2020-08-21 | 2020-11-20 | 浙江有品生物科技有限公司 | Dust removal dehumidification heated air circulation drying system |
| CN114322370A (en) * | 2021-12-23 | 2022-04-12 | 佩高电子电器(德国)技术有限公司 | Heating system utilizing mine ventilation air energy heat pump |
| CN114322370B (en) * | 2021-12-23 | 2024-03-19 | 佩高电子电器(德国)技术有限公司 | Heat pump heating system utilizing ventilation air methane of mine |
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Application publication date: 20200522 |
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