CN219494753U - Heat exchange circulation device of grain dryer - Google Patents
Heat exchange circulation device of grain dryer Download PDFInfo
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- CN219494753U CN219494753U CN202223515989.9U CN202223515989U CN219494753U CN 219494753 U CN219494753 U CN 219494753U CN 202223515989 U CN202223515989 U CN 202223515989U CN 219494753 U CN219494753 U CN 219494753U
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- heat exchanger
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- compressor
- expansion valve
- plate heat
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Abstract
The utility model relates to a heat exchange circulation device of a grain dryer, which comprises: the device comprises a drying hot blast stove, a heat exchanger, a drying tower, a flat plate heat exchanger, a compressor and an expansion valve; the hot-blast stove is connected with a heat exchanger, the heat exchanger is connected with a drying tower, the drying tower is connected with a flat plate heat exchanger, the heat exchanger is connected with an expansion valve, the expansion valve is connected with the flat plate heat exchanger, the flat plate heat exchanger is connected with a compressor, and the compressor is connected with the heat exchanger. The utility model can effectively recycle the hot air generated by the drying hot blast stove and save resources.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a heat exchange circulating device of a grain dryer.
Background
The existing grain dryer has the advantages that according to different grain types, the inlet hot air temperature is about 70 ℃, the outlet hot air temperature is about 40 ℃, and a large amount of waste heat is wasted. When the hot air is dried, the hot air can carry a large amount of impurity particles such as chaff, and if devices such as a fin heat exchanger are arranged in the air outlet duct, the devices can be blocked and the like.
Disclosure of Invention
The utility model aims to provide a heat exchange circulation device of a grain dryer, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a heat exchange circulation device of a grain dryer, comprising: the device comprises a drying hot blast stove, a heat exchanger, a drying tower, a flat plate heat exchanger, a compressor and an expansion valve; the hot-blast stove is connected with a heat exchanger, the heat exchanger is connected with a drying tower, the drying tower is connected with a flat plate heat exchanger, the heat exchanger is connected with an expansion valve, the expansion valve is connected with the flat plate heat exchanger, the flat plate heat exchanger is connected with a compressor, and the compressor is connected with the heat exchanger.
Wherein, the material of dull and stereotyped heat exchanger adopts one of corrosion resistant plate, copper, aluminum plate.
The heat exchanger, the expansion valve, the flat plate heat exchanger and the compressor are used for circulating the refrigerant under the operation of the compressor and the expansion valve.
Wherein, the refrigerant is one of Freon and carbon dioxide.
Hot air generated by the hot air drying furnace enters the bottom of the drying tower through the heat exchanger, the hot air is discharged from the outlet of the top of the drying tower and enters the flat plate heat exchanger, refrigerant forms low-pressure low-temperature refrigerant gas through the expansion valve, the low-pressure low-temperature refrigerant gas enters the flat plate heat exchanger to exchange heat with outlet hot air, the refrigerant gas in the flat plate heat exchanger is extracted by the compressor to be compressed into high-temperature high-pressure refrigerant gas, and the high-temperature high-pressure refrigerant gas is sent into the heat exchanger to be transmitted into inlet hot air for recycling.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the heat exchanger, the expansion valve, the flat plate heat exchanger and the compressor are arranged, so that the waste heat in the hot air at the outlet can be effectively exchanged by the refrigerant and replaced into the hot air at the inlet again, the heat in the recycled hot air is effectively utilized, and the environment-friendly energy-saving hot air recycling device is environment-friendly and can save resources; the flat plate heat exchanger is adopted to exchange heat with the outlet hot air, so that rice husk impurity particles in the outlet hot air are not easy to form accumulation on the flat plate heat exchanger, and the effective operation of the flat plate heat exchanger can be ensured; the flat plate heat exchanger adopts stainless steel plates, copper plates and aluminum plates, so that corrosion and impurity particle impact can be effectively prevented.
Drawings
FIG. 1 is a front view of the present utility model;
in fig. 1: 1-drying hot blast stove, 2-heat exchanger, 3-drying tower, 4-flat plate heat exchanger, 5-compressor, 6-expansion valve.
Detailed Description
So that the manner in which the features and objects of the present utility model can be understood in more detail, a more particular description of the utility model, briefly summarized above, may be had by reference to the appended drawings, which are not necessarily limited to the embodiments described.
Referring to fig. 1, a heat exchange circulation device of a grain dryer includes: the drying hot blast stove 1, the heat exchanger 2, the drying tower 3, the flat plate heat exchanger 4, the compressor 5 and the expansion valve 6; the hot blast stove for drying 1 is connected with heat exchanger 2, heat exchanger 2 is connected with drying tower 3, drying tower 3 is connected with flat plate heat exchanger 4, heat exchanger 2 is connected with expansion valve 6, expansion valve 6 is connected with flat plate heat exchanger 4, flat plate heat exchanger 4 is connected with compressor 5, compressor 5 is connected with heat exchanger 2.
Wherein, the material of the flat plate heat exchanger 4 adopts one of a stainless steel plate, a copper plate and an aluminum plate.
The fluid flowing in the heat exchanger 2, the expansion valve 6, the flat plate heat exchanger 4 and the compressor 5 is a refrigerant, and the refrigerant is circulated by the operation of the compressor 5 and the expansion valve 6.
Wherein, the refrigerant is one of Freon and carbon dioxide.
Hot air generated by the hot air drying furnace 1 enters the bottom of the drying tower 3 through the heat exchanger 2, the hot air passes through the drying tower 3 and is discharged from the outlet at the top of the drying tower 3, the hot air enters the flat plate heat exchanger 4, refrigerant forms low-pressure low-temperature refrigerant gas through the expansion valve 6, the low-pressure low-temperature refrigerant gas enters the flat plate heat exchanger 4 to exchange heat with outlet hot air, the compressor 5 extracts the refrigerant gas in the flat plate heat exchanger 4 to be compressed into high-temperature high-pressure refrigerant gas, the high-temperature high-pressure refrigerant gas is sent into the heat exchanger 2, and the high-temperature heat is transmitted into inlet hot air for recycling.
Through the arrangement of the heat exchanger 2, the expansion valve 6, the flat plate heat exchanger 4 and the compressor 5, the waste heat in the outlet hot air can be effectively exchanged through the refrigerant and replaced into the inlet hot air again, so that the heat in the recycled hot air is effectively utilized, and the energy-saving hot air heat exchanger is environment-friendly and can save resources; the flat plate heat exchanger 4 is adopted to exchange heat with outlet hot air, and rice husk impurity particles in the outlet hot air are not easy to form accumulation on the flat plate heat exchanger 4, so that the effective operation of the flat plate heat exchanger 4 can be ensured; stainless steel plates, copper plates and aluminum plates are adopted by the flat plate heat exchanger 4, so that corrosion and impurity particle impact can be effectively prevented.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A heat exchange circulation device of a grain dryer, characterized by comprising: the hot blast stove for drying (1), the heat exchanger (2), the drying tower (3), the flat plate heat exchanger (4), the compressor (5) and the expansion valve (6); the hot-blast stove for drying (1) is connected with a heat exchanger (2), the heat exchanger (2) is connected with a drying tower (3), the drying tower (3) is connected with a flat plate heat exchanger (4), the heat exchanger (2) is connected with an expansion valve (6), the expansion valve (6) is connected with the flat plate heat exchanger (4), the flat plate heat exchanger (4) is connected with a compressor (5), and the compressor (5) is connected with the heat exchanger (2).
2. A heat exchange circulation device of a grain dryer according to claim 1, wherein: the flat plate heat exchanger (4) is made of one of stainless steel plates, copper plates and aluminum plates.
3. A heat exchange circulation device of a grain dryer according to claim 1, wherein: the fluid flowing in the heat exchanger (2), the expansion valve (6), the flat plate heat exchanger (4) and the compressor (5) is refrigerant.
4. A heat exchange circulation device of a grain dryer according to claim 3, wherein: the refrigerant is one of Freon and carbon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223515989.9U CN219494753U (en) | 2022-12-28 | 2022-12-28 | Heat exchange circulation device of grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223515989.9U CN219494753U (en) | 2022-12-28 | 2022-12-28 | Heat exchange circulation device of grain dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219494753U true CN219494753U (en) | 2023-08-08 |
Family
ID=87513832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223515989.9U Active CN219494753U (en) | 2022-12-28 | 2022-12-28 | Heat exchange circulation device of grain dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219494753U (en) |
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2022
- 2022-12-28 CN CN202223515989.9U patent/CN219494753U/en active Active
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