Quick cooling unit for grains in granary

Abstract

The utility model discloses a quick cooling unit for grains in a granary, which comprises a rack, a variable-frequency compressor is arranged in the rack, a high-pressure pressure switch is mounted on an exhaust pipe of the variable-frequency compressor, a refrigerating loop of the variable-frequency compressor is connected with a gas-liquid separator, and a low-pressure switch is arranged on the refrigerating loop; the refrigeration loop further comprises a liquid storage tank, a drying filter, an expansion valve and an evaporator; the refrigeration loop further comprises a first condenser, and an axial flow fan is arranged on one side of the first condenser. The refrigeration loop further comprises a second condenser, and an electromagnetic valve is installed on the exhaust pipe between the second condenser and the inverter compressor. An air feeder is arranged on one side of the second condenser, and a water baffle is arranged between the second condenser and the air feeder. According to the grain cooling machine, condensation heat recovery is improved, the humidity of the air outlet can be adjusted, the air supply temperature can be increased, the air supply humidity can be reduced, the energy efficiency of the whole machine can be improved, and meanwhile grain condensation around the air outlet caused by too high air supply humidity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grain cooling units, in particular to a grain rapid cooling unit for a granary. Background Art

[0002] The grain cooler uses a compressor to cool the grain, and the blower sends the cooled air into the grain silo to quickly lower the temperature of the grain core in the silo, thereby ensuring safe grain storage.

[0003] At present, most grain machines are idle after purchase. First, they consume a lot of electricity, which increases the cost of grain storage. Second, the humidity of the air outlet is too high, which easily causes water to accumulate in the grain at the air outlet. In order to solve the above technical problems, we propose a grain rapid cooling unit for granaries. Utility Model Content

[0004] The utility model aims to provide a grain rapid cooling unit for granary grains, so as to solve the problem that most grain machines in the prior art are idle after purchase, firstly, they consume a lot of electricity and increase the grain storage cost, and secondly, the air outlet humidity is too high, which easily causes water accumulation in grains at the air outlet.

[0005] To achieve the above object, the utility model provides the following technical solution: a grain rapid cooling unit for granary, comprising a frame, a variable frequency compressor is arranged in the frame, a high pressure switch is installed on the exhaust pipe of the variable frequency compressor, a gas-liquid separator is connected to the refrigeration circuit of the variable frequency compressor, and a low pressure switch is arranged on the refrigeration circuit;

[0006] The refrigeration circuit also includes a liquid storage tank, a drying filter, an expansion valve, and an evaporator;

[0007] The refrigeration circuit also includes a first condenser, and an axial flow fan is arranged on one side of the first condenser;

[0008] The refrigeration circuit also includes a second condenser, and a solenoid valve is installed on the exhaust pipe between the second condenser and the variable frequency compressor; a blower is arranged on one side of the second condenser, and a water baffle is arranged between the second condenser and the blower.

[0009] Preferably, the frame is provided with an air supply outlet at the air supply fan, and an air supply sealing valve is installed at the air supply outlet.

[0010] Preferably, an air inlet is provided on the top of the frame, and a metal corrugated filter and an air inlet sealing valve are installed at the air inlet.

[0011] Preferably, a wheel is installed on one side of the bottom of the frame, a universal turntable is installed on the other side of the bottom of the frame, and a wheel is installed on the bottom end of the universal turntable.

[0012] Compared with the prior art, the beneficial effects of the utility model are: it can automatically operate according to the outdoor temperature and humidity, and when the outdoor temperature and humidity are consistent with the indoor temperature and humidity, it automatically switches to the ventilation mode to achieve energy-saving effects. The unit is a full-frequency unit, which can automatically adjust the compressor and fan frequency as needed to achieve energy-saving effects; the grain cooler has improved condensation heat recovery, can adjust the humidity of the air outlet, increase the supply air temperature, and reduce the supply air humidity, which can improve the energy efficiency of the whole machine, and at the same time effectively avoid condensation of grain around the air outlet due to excessive supply air humidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a system diagram of the utility model;

[0015] Figure 2 It is an appearance diagram of the utility model.

[0016] In the figure: 1. variable frequency compressor; 2. gas-liquid separator; 3. air supply port; 4. air supply sealing valve; 5. water baffle; 6. second condenser; 7. evaporator; 8. expansion valve; 9. drying filter; 10. liquid storage tank; 11. first condenser; 12. axial flow fan; 13. control box; 14. high pressure switch; 15. low pressure switch; 16. metal corrugated filter; 17. air inlet sealing valve; 18. air inlet; 19. wheel; 20. universal turntable; 21. stainless steel frame; 23. solenoid valve; 24. air supply fan. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0018] See also Figure 1-2In an embodiment of the utility model, a grain rapid cooling unit for a granary includes a frame 24 and a control box 13, a variable frequency compressor 1 is arranged in the frame 24, a high pressure switch 14 is installed on the exhaust pipe of the variable frequency compressor 1, a gas-liquid separator 2 is connected to the refrigeration circuit of the variable frequency compressor 1, and a low pressure switch 15 is arranged on the refrigeration circuit; the refrigeration circuit also includes a liquid storage tank 10, a drying filter 9, an expansion valve 8, and an evaporator 7; the refrigeration circuit also includes a first condenser 11, and an axial flow fan 12 is arranged on one side of the first condenser 11; the refrigeration circuit also includes a second condenser 6, and a solenoid valve 23 is installed on the exhaust pipe between the second condenser 6 and the variable frequency compressor 1; a blower 24 is arranged on one side of the second condenser 6, and a water baffle 5 is arranged between the second condenser 6 and the blower 24.

[0019] The frame 21 is provided with an air supply port 3 at the blower, and an air supply sealing valve 4 is installed at the air supply port 3; an air inlet 18 is provided at the top of the frame 21, and a metal corrugated filter 16 and an air inlet sealing valve 17 are installed at the air inlet 18; a wheel 19 is installed on one side of the bottom of the frame 21, and a universal turntable 20 is installed on the other side of the bottom of the frame 21, and a wheel 19 is installed at the bottom of the universal turntable 20, and the universal turntable 20 can make the device rotate in a certain direction.

[0020] The low-voltage switch 15 is a system protection device that can effectively protect the system high voltage;

[0021] The first condenser 11 serves as a heat dissipation condenser to dissipate heat to the outside;

[0022] The axial flow fan 12 is an EC DC motor, which can be infinitely regulated to achieve energy saving;

[0023] The circuit also includes a liquid storage tank 10, a drying filter 9, an expansion valve 8, and an evaporator 7. The evaporator is electrophoresed with epoxy resin and can be used while the grain depot is undergoing circulation fumigation;

[0024] The second condenser 6 is used as an energy recovery condenser, which is controlled by the solenoid valve 23 on the circuit to increase the air volume and temperature at the air outlet to reduce the humidity at the air outlet and achieve energy saving effect;

[0025] The refrigeration circuit has a gas-liquid separator 2; the circuit also includes a water baffle 5. Due to the particularity of the grain depot, in order to prevent the evaporator condenser fins from being blocked by dust, the evaporator and condenser fin spacing is designed to be widened, which causes the condensed water to be carried out by the wind, so the circuit should also have a water baffle 5;

[0026] The blower 24 uses an EC DC variable frequency blower, which can adjust the speed steplessly according to energy requirements to achieve energy saving effect;

[0027] The air supply airtight valve 4 is powered on and opened, and powered off and closed, effectively preventing insects and rodents from entering the machine;

[0028] It includes 3 air supply outlets; it includes 16 metal corrugated filter screen on the air inlet circuit; it includes 17 air inlet sealing valve on the air inlet circuit, which is opened by power and closed by power off; it includes 18 air inlet.

[0029] This application adopts PLC programmable system control, which can automatically operate according to the outdoor temperature and humidity. When the outdoor temperature and humidity are consistent with the indoor temperature and humidity, it automatically switches to ventilation mode to achieve energy saving. The unit is a full-frequency unit, which can automatically adjust the compressor and fan frequency as needed to achieve energy saving. The grain cooler has improved condensation heat recovery, can adjust the humidity of the air outlet, increase the supply air temperature, and reduce the supply air humidity, which can improve the energy efficiency of the whole machine, and at the same time effectively avoid condensation on the grain around the air outlet due to excessive supply air humidity.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A grain rapid cooling unit for granary, characterized in that: The invention comprises a frame (21), wherein a variable frequency compressor (1) is arranged in the frame (21), a high pressure switch (14) is installed on the exhaust pipe of the variable frequency compressor (1), a gas-liquid separator (2) is connected to the refrigeration circuit of the variable frequency compressor (1), and a low pressure switch (15) is arranged on the refrigeration circuit; The refrigeration circuit also includes a liquid storage tank (10), a drying filter (9), an expansion valve (8), and an evaporator (7); The refrigeration circuit also includes a first condenser (11), and an axial flow fan (12) is provided on one side of the first condenser (11); The refrigeration circuit also includes a second condenser (6), and a solenoid valve (23) is installed on the exhaust pipe between the second condenser (6) and the variable frequency compressor (1); a blower (24) is provided on one side of the second condenser (6), and a water baffle (5) is provided between the second condenser (6) and the blower (24); The frame (21) is provided with an air supply port (3) at the air supply fan, and an air supply airtight valve (4) is installed at the air supply port (3); an air inlet (18) is provided at the top of the frame (21), and a metal corrugated filter (16) and an air inlet airtight valve (17) are installed at the air inlet (18); a wheel (19) is installed on one side of the bottom of the frame (21), and a universal turntable (20) is installed on the other side of the bottom of the frame (21), and a wheel (19) is installed at the bottom end of the universal turntable (20).

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