CN210463784U - Double-heat-source multipurpose grain drying air source heat pump hot air unit - Google Patents
Double-heat-source multipurpose grain drying air source heat pump hot air unit Download PDFInfo
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- CN210463784U CN210463784U CN201920484070.7U CN201920484070U CN210463784U CN 210463784 U CN210463784 U CN 210463784U CN 201920484070 U CN201920484070 U CN 201920484070U CN 210463784 U CN210463784 U CN 210463784U
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- 238000001035 drying Methods 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003507 refrigerant Substances 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 239000003673 groundwater Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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Abstract
The utility model relates to a double-heat-source multipurpose grain drying air source heat pump hot air unit, which comprises a lower cabinet body and an upper cabinet body arranged above the lower cabinet body, wherein the top of the upper cabinet body is provided with an air outlet; an evaporator and a fan are arranged in the upper cabinet body, and the fan is arranged at an air outlet at the top of the upper cabinet body; an air inlet is formed in the surface of one side of the lower cabinet body, and an air outlet is formed in the surface of the opposite side of the lower cabinet body; the lower cabinet body is internally provided with a heat exchanger, a gas-liquid separator, a compressor, a filter, a fan, a liquid reservoir, a condenser and an electric heater; the electric heater is arranged at the air outlet of the lower cabinet body; the compressor, the condenser, the filter, the liquid receiver, the heat exchanger, the gas-liquid separator and the compressor are sequentially connected; the inlet end and the outlet end of the evaporator are respectively connected with the liquid reservoir and the gas-liquid separator. The utility model discloses combine together air source heat pump and water source heat pump technique, can realize the heat in energy or the groundwater in the make full use of air, can increase substantially grain drying machine's drying efficiency.
Description
Technical Field
The utility model belongs to the technical field of the heat pump is dried, concretely relates to hot-blast unit of two heat source multipurpose grain drying air source heat pumps.
Background
The heat pump technology is a new energy technology which is paid much attention in the world in recent years, and refers to a device which can obtain low-level heat energy from air, water or soil in the nature and provide high-level heat energy which can be used by people through electric energy to do work. The air source heat pump is one of heat pump technologies which are researched more at present, and particularly, the air source heat pump is widely used in the process of greatly popularizing coal to change clean energy in recent countries.
In recent years, the production of a large number of grain crops as the important aspect of agriculture is rapidly developed. Particularly, with the increase of attention and financial investment of governments at all levels, the level of mechanized equipment for producing bulk food crops is continuously improved. However, the whole mechanization level of the grain production is rapidly improved, and meanwhile, a plurality of short leg links still exist, so that the agricultural modernization propulsion pace is seriously influenced, wherein a short plate with seriously insufficient drying capacity in a grain production place is particularly protruded.
According to statistics, the loss of grains after being harvested in the processes of threshing, airing, storing, transporting, processing, consuming and the like reaches about 18 percent and far exceeds the 5 percent standard specified by the grain agriculture organization of the United nations. Of these losses, the amount of food lost to mold, sprout, etc. due to the grain not having time to sun dry or safe moisture is quite dramatic. In a certain sense, the method promotes the grain drying mechanization and improves the drying capacity of the grain production area, and becomes one of the key links for realizing the whole-course mechanization of the grain production and guaranteeing the grain safety.
However, the currently developed grain drying machine still uses a coal (fuel) fired hot blast stove with high energy consumption, high pollution and low automation degree as a main heat source, and has the problems of large environmental protection pressure, high production cost, labor shortage and the like. Firstly, the development mode of the grain dryer is not consistent with the great situation of energy conservation, emission reduction and environmental protection. In recent years, the grain drying machine developed in China mostly uses a coal (fuel) fired hot blast stove as a main heat source. The coal-fired and fuel-fired grain dryer has the problems of high energy consumption, high emission of pollutants such as smoke dust, carbon dioxide, sulfur dioxide and the like, energy waste and environmental pollution are caused, and the problems are not in accordance with the development target of high-efficiency agriculture, but also in accordance with the current policy concept of China for promoting energy conservation, emission reduction, ecological environment protection and ecological environment sustainable development.
The air energy heat pump technology is a new energy technology which is green, environment-friendly, energy-saving, safe, cost-saving and efficient, and has obvious advantages in the aspects of economy, reliability, environmental protection and the like. But the regions in China are wide, particularly the main grain producing areas in the northern China, the problems that the environment temperature is low in winter and grain drying is still needed exist, only an air source heat pump cannot be used or cannot be used for efficiently drying the grain, the water source conditions of partial regions are high, and the water source heat pump can be completely used as a heat source for drying the grain.
Under the new normal state that the national attention degree and the investment for energy conservation and emission reduction and environmental protection are increasingly increased, the air source or water source heat pump hot air agricultural application technology is greatly developed, and the substitution of clean energy and renewable energy for small coal-fired and oil-fired boilers is in the trend.
The air source heat pump for drying used at present is generally used for occasions such as fruit and wood drying, needs to be provided with a drying room, is not applicable to the existing grain drying, restricts the use of the ultralow temperature air source heat pump, and can not completely meet the use requirements. The air source heat pump drying unit who uses at present exists and can not be applicable to vast northern area, probably appears frosting defrosting problem when having the stoving, and drying efficiency is lower under the low temperature operating mode, and the working cost is higher problem, the unable stoving problem in winter even appears.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model aims to provide a can avoid appearing above-mentioned technical defect's two heat source multipurpose grain drying air source heat pump hot-air unit.
In order to realize the purpose of the utility model, the utility model provides a technical scheme as follows:
a double-heat-source multipurpose grain drying air source heat pump hot air unit comprises a lower cabinet body and an upper cabinet body arranged above the lower cabinet body, wherein the top of the upper cabinet body is provided with an air outlet; an evaporator and a fan are arranged in the upper cabinet body, and the fan is arranged at an air outlet at the top of the upper cabinet body; an air inlet is formed in the surface of one side of the lower cabinet body, and an air outlet is formed in the surface of the opposite side of the lower cabinet body; the lower cabinet body is internally provided with a heat exchanger, a gas-liquid separator, a compressor, a filter, a fan, a liquid reservoir, a condenser and an electric heater; the electric heater is arranged at the air outlet of the lower cabinet body; the compressor, the condenser, the filter, the liquid receiver, the heat exchanger, the gas-liquid separator and the compressor are sequentially connected; the inlet end and the outlet end of the evaporator are respectively connected with the liquid reservoir and the gas-liquid separator.
Further, a first finned evaporator, a second finned evaporator and a fan are arranged in the upper cabinet body; the inlet end of the first finned evaporator and the inlet end of the second finned evaporator are respectively connected with a liquid reservoir; the outlet end of the first finned evaporator and the outlet end of the second finned evaporator are respectively connected with a gas-liquid separator.
Further, a first electromagnetic valve, a first expansion valve and a first one-way valve are further arranged in the lower cabinet body, the outlet end of the liquid reservoir, the first electromagnetic valve and the first expansion valve are sequentially connected, the inlet end of the first finned evaporator and the inlet end of the second finned evaporator are respectively connected with the first expansion valve through refrigerant pipelines, and the heat exchanger, the first one-way valve and the gas-liquid separator are sequentially connected.
Further, a ball valve, a second electromagnetic valve, a second expansion valve and a second one-way valve are further arranged in the lower cabinet body, and the compressor, the condenser, the filter, the liquid storage device, the ball valve, the second electromagnetic valve, the second expansion valve, the heat exchanger, the second one-way valve, the gas-liquid separator and the compressor are sequentially connected.
Further, the first expansion valve and the second expansion valve are a thermostatic expansion valve, an electronic expansion valve, a capillary tube or a capillary tube group.
Further, the compressor is a rotor compressor, a scroll compressor or a screw compressor.
The utility model provides a two heat source multipurpose grain stoving air source heat pump hot-blast units combines together air source heat pump and water source heat pump technique, can realize the energy in the make full use of air or the heat in the groundwater, and is more energy-conserving, and the applied environment wide range can increase substantially grain drying machine's drying efficiency, has reduced energy consumption, can satisfy practical application's needs well.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the double-heat-source multi-purpose grain drying air source heat pump hot air unit comprises an upper cabinet body 2, a lower cabinet body 5, an axial flow fan 1, a first finned evaporator 3, a second finned evaporator 4, a drying air inlet 24, a shell-and-tube heat exchanger 21, a source side water inlet pipe 22, a source side water outlet pipe 23, a compressor 15, a liquid reservoir 10, a first electromagnetic valve 19, a first expansion valve 20, a second electromagnetic valve 12, a second expansion valve 13, a ball valve 11, a first one-way valve 16, a second one-way valve 17, a finned condenser 8, an air supply centrifugal fan 14, a gas-liquid separator 18, an auxiliary electric heater 7, an air outlet 6 and the like. A source-side water inlet tube 22 and a source-side water outlet tube 23 are connected to the shell-and-tube heat exchanger 21.
The upper cabinet body 2 is arranged above the lower cabinet body 5, and the top of the upper cabinet body 2 is provided with an air outlet; the first finned evaporator 3, the second finned evaporator 4 and the axial flow fan 1 are arranged in the upper cabinet body 2, and the axial flow fan 1 is arranged at a position close to the top air outlet.
A drying air inlet 24 is arranged on one side surface of the lower cabinet body 5, and an air outlet 6 is arranged on the opposite side surface. The shell-and-tube heat exchanger 21, the gas-liquid separator 18, the compressor 15, the blower centrifugal fan 14, the liquid receiver 10, the fin condenser 8, and the auxiliary electric heater 7 are disposed inside the lower cabinet 5. The auxiliary electric heater 7 is disposed at the air outlet 6.
The compressor 15 is connected with the inlet of the finned condenser 8 through a gas exhaust pipeline, and the outlet of the finned condenser 8, the filter 9 and the liquid receiver 10 are sequentially connected through a refrigerant liquid outlet pipe.
The outlet end of the liquid receiver 10, the first electromagnetic valve 19 and the first expansion valve 20 are connected in sequence, and the inlet end of the first finned evaporator 3 and the inlet end of the second finned evaporator 4 are connected with the first expansion valve 20 through refrigerant pipelines respectively. Meanwhile, the outlet end of the liquid reservoir 10, the ball valve 11, the second solenoid valve 12, the second expansion valve 13, and the shell-and-tube heat exchanger 21 are sequentially connected by pipes.
The first finned evaporator 3 and the second finned evaporator 4 are connected in parallel with each other to the first expansion valve 20. The outlet end of the first finned evaporator 3 and the outlet end of the second finned evaporator 4 are respectively connected with a first one-way valve 16, and the first one-way valve 16 is connected with a gas-liquid separator 18. The first finned evaporator 3 and the second finned evaporator 4 absorb heat of air in the upper cabinet body 2, and the axial flow fan 1 discharges the air cooled in the upper cabinet body 2 through an air outlet in the top of the upper cabinet body.
The outlet end of the second expansion valve 13 is connected to a shell-and-tube heat exchanger 21 through a refrigerant line, and the shell-and-tube heat exchanger 21, the second check valve 17, and the gas-liquid separator 18 are connected in this order. The outlet end of the gas-liquid separator 18 is connected to the suction port of the compressor 15.
The compressor 15, the fin condenser 8, the filter 9, the liquid receiver 10, the ball valve 11, the second electromagnetic valve 12, the second expansion valve 13, the shell-and-tube heat exchanger 21, the first check valve 17, the gas-liquid separator 18 and the compressor 15 are connected in sequence to form a complete refrigerant cycle.
The first expansion valve 20 and the second expansion valve 13 may be thermal expansion valves, or may be electronic expansion valves, capillary tubes, or capillary tube groups. The compressors 15 may be rotor compressors, scroll compressors, or screw compressors, and the number of the compressors may be 1 or 2 to 5.
The shell-and-tube heat exchanger 21 is used as a second heat source of the grain drying heat pump, and can use underground water or surface water as a heat source, and also can be used as a cold source of a refrigeration air conditioner in summer, water with higher temperature enters the shell-and-tube heat exchanger 21 from the source side water inlet pipe 22, and after heat is released, the water which becomes low temperature is discharged out of the shell-and-tube heat exchanger 21 from the source side water outlet pipe 23 and is used for cooling at the tail end of the air conditioner.
When the air supply centrifugal fan works, cold air is heated from the drying air inlet 24 through the fin condenser 8 under the action of the air supply centrifugal fan 14 to become high-temperature low-humidity hot air, and if the temperature is not enough, the air can be heated by the auxiliary electric heater 7 and then is discharged from the air outlet 6 to the grain dryer for drying grains.
Compared with the existing grain drying technology, the double-heat-source multipurpose grain drying air source heat pump hot air unit is simple in structure and ingenious in design, combines the air source heat pump and the water source heat pump, can fully utilize energy in air or heat in underground water (surface water and air conditioner chilled water), is more energy-saving, wide in application environment range, capable of greatly improving the drying efficiency of a grain dryer and reducing energy consumption, green, energy-saving, safe, cost-saving, efficient, stable and reliable.
In the description of the present invention, if there are terms such as "mounted," "disposed," "connected," "fixed," and the like, unless otherwise expressly specified or limited, such terms are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. A double-heat-source multi-purpose grain drying air source heat pump hot air unit is characterized by comprising a lower cabinet body and an upper cabinet body arranged above the lower cabinet body, wherein the top of the upper cabinet body is provided with an air outlet; an evaporator and a fan are arranged in the upper cabinet body, and the fan is arranged at an air outlet at the top of the upper cabinet body; an air inlet is formed in the surface of one side of the lower cabinet body, and an air outlet is formed in the surface of the opposite side of the lower cabinet body; the lower cabinet body is internally provided with a heat exchanger, a gas-liquid separator, a compressor, a filter, a fan, a liquid reservoir, a condenser and an electric heater; the electric heater is arranged at the air outlet of the lower cabinet body; the compressor, the condenser, the filter, the liquid receiver, the heat exchanger, the gas-liquid separator and the compressor are sequentially connected; the inlet end and the outlet end of the evaporator are respectively connected with the liquid reservoir and the gas-liquid separator;
the heat exchanger is a shell-and-tube heat exchanger (21), and a source side water inlet pipe (22) and a source side water outlet pipe (23) are connected to the shell-and-tube heat exchanger (21).
2. The dual-heat-source multi-purpose grain drying air source heat pump hot air unit as claimed in claim 1, wherein a first finned evaporator, a second finned evaporator and a fan are arranged in the upper cabinet body; the inlet end of the first finned evaporator and the inlet end of the second finned evaporator are respectively connected with a liquid reservoir; the outlet end of the first finned evaporator and the outlet end of the second finned evaporator are respectively connected with a gas-liquid separator.
3. The dual-heat-source multi-purpose grain drying air source heat pump hot air unit as claimed in claim 2, wherein a first solenoid valve, a first expansion valve and a first one-way valve are further disposed in the lower cabinet body, an outlet end of the liquid reservoir, the first solenoid valve and the first expansion valve are sequentially connected, an inlet end of the first finned evaporator and an inlet end of the second finned evaporator are respectively connected with the first expansion valve through refrigerant pipelines, and the heat exchanger, the first one-way valve and the gas-liquid separator are sequentially connected.
4. The dual-heat-source multi-purpose grain drying air source heat pump hot air unit as claimed in claim 3, wherein a ball valve, a second solenoid valve, a second expansion valve and a second one-way valve are further disposed in the lower cabinet body, and the compressor, the condenser, the filter, the liquid reservoir, the ball valve, the second solenoid valve, the second expansion valve, the heat exchanger, the second one-way valve, the gas-liquid separator and the compressor are sequentially connected.
5. The dual-heat-source multi-purpose grain drying air source heat pump hot air unit as claimed in claim 4, wherein the first expansion valve and the second expansion valve are a thermostatic expansion valve, an electronic expansion valve, a capillary tube or a capillary tube set.
6. The dual heat source multi-purpose grain drying air source heat pump hot air unit of claim 4, wherein the compressor is a rotor compressor, a scroll compressor or a screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920484070.7U CN210463784U (en) | 2019-04-11 | 2019-04-11 | Double-heat-source multipurpose grain drying air source heat pump hot air unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920484070.7U CN210463784U (en) | 2019-04-11 | 2019-04-11 | Double-heat-source multipurpose grain drying air source heat pump hot air unit |
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| Publication Number | Publication Date |
|---|---|
| CN210463784U true CN210463784U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920484070.7U Active CN210463784U (en) | 2019-04-11 | 2019-04-11 | Double-heat-source multipurpose grain drying air source heat pump hot air unit |
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| Country | Link |
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| CN (1) | CN210463784U (en) |
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2019
- 2019-04-11 CN CN201920484070.7U patent/CN210463784U/en active Active
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Address after: 225000 West District, Hanjiang District, Jiangsu, Yangzhou, Gansu Province, the west side of the road on the west side of eight Patentee after: Jiangsu new Qicai energy saving Co., Ltd Address before: 225000 Huayuan International Building, 215 Wenhui West Road, Hanjiang District, Yangzhou City, Jiangsu Province Patentee before: BAOLIAN HUAQICAI ENERGY SAVING (JIANGSU) Co.,Ltd. |
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