Grain storage warehouse surface rapid cooling and air conditioning all-in-one machine

Abstract

The utility model discloses a grain storage warehouse surface rapid cooling and air conditioning all-in-one machine which comprises a shell, the shell is provided with an air supply outlet, an air return inlet and a fresh air opening, and an air supply outlet electric closed air valve, an air return inlet electric closed air valve and a fresh air opening electric closed air valve are installed at the air supply outlet, the air return inlet and the fresh air opening respectively. A compressor, a gas-liquid separator, a condenser, a condensation axial flow fan, a drying filter, an expansion valve, an evaporator, a humidifier and an air feeder are arranged in the shell, the compressor is connected with the condenser and the gas-liquid separator through pipelines, and the gas-liquid separator is connected with the evaporator through a pipeline. The condenser is connected with the drying filter through a pipeline, and the drying filter is connected with the expansion valve through a pipeline. According to the air conditioner, rapid cooling in summer is considered, meanwhile, the humidifying module is arranged, indoor humidity is maintained, ventilation in winter and transition seasons is considered, indoor cooling is achieved in a ventilation mode, and energy consumption of the whole machine is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grain warehouse temperature control machines, in particular to an integrated air-conditioning machine for rapid surface cooling of a grain storage warehouse. Background Art

[0002] To prevent insects, granaries must be fumigated regularly. The insect repellent phosphine used is highly corrosive to copper. Furthermore, the dust flying around in the granary can also negatively impact air conditioning equipment and temperature and humidity sensors.

[0003] While ensuring the ideal temperature in the granary, grain air conditioning also requires careful monitoring of moisture loss in the grain. Conventional air conditioning and single cooling units, due to their low evaporation temperatures, can remove significant amounts of moisture from the air.

[0004] The air conditioner in the grain warehouse pretends to have an outdoor temperature and humidity probe, and the internal unit is equipped with a closed valve. When the unit detects that the outdoor temperature and humidity are the same as the indoor temperature and humidity, the compressor is turned off and the equipment only runs for ventilation.

[0005] Due to the special environment and grain storage requirements of granaries, low temperature and low humidity environments are conducive to grain storage. The grain surface air conditioners currently on the market have a single function, which only has a cooling function and cannot control the humidity. Most of them cannot be ventilated. For this reason, we propose an integrated air conditioner for rapid cooling of the surface of grain storage warehouses. Utility Model Content

[0006] The purpose of the utility model is to provide an integrated air-conditioning machine for rapidly cooling the surface of a grain storage warehouse, so as to solve the problems in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated air-conditioning unit for rapid cooling of the surface of a grain storage warehouse, comprising an outer shell, the outer shell being provided with an air supply port, a return air port and a fresh air port, the air supply port, the return air port and the fresh air port being respectively equipped with an electric closed air valve for the air supply port, an electric closed air valve for the return air port and an electric closed air valve for the fresh air port; a compressor, an air-liquid separator, a condenser, a condensing axial flow fan, a drying filter, an expansion valve, an evaporator, a humidifier and an air supply fan are arranged in the outer shell, the compressor is respectively connected to the condenser and the air-liquid separator through pipes, the air-liquid separator is connected to the evaporator through a pipe, the condenser is connected to the drying filter through a pipe, the drying filter is connected to the expansion valve through a pipe, a condensing axial flow fan is arranged on one side of the condenser, and an air supply fan is arranged on one side of the humidifier.

[0008] Preferably, the evaporator is made of all-aluminum material or copper-aluminum material, and the fin spacing of the evaporator is 2mm-3mm.

[0009] Preferably, a high-pressure switch and a high-pressure pressure gauge are installed on the pipeline between the compressor and the condenser, and a low-pressure switch, a needle valve and a low-pressure pressure gauge are installed on the pipeline between the compressor and the gas-liquid separator.

[0010] Preferably, the air supply outlet, return air outlet and fresh air outlet are respectively provided with an air supply outlet flange, a return air outlet flange and a fresh air outlet flange, the shell is installed with a return air outlet metal filter at the return air outlet, and a fresh air outlet metal filter is installed in the fresh air outlet.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. Rapid cooling in summer is taken into consideration, and a humidification module is provided to maintain indoor humidity. In addition, ventilation in winter and other transitional seasons is taken into consideration during the design, so that the indoor temperature can be cooled by ventilation to reduce the energy consumption of the whole machine.

[0013] 2. Evaporator fin design: The fin spacing is set at 2mm-3mm, effectively preventing dust clogging. The lower part of the evaporator is designed with a high water level drain pan and a thicker diameter drain pipe. After a period of use, dust adhering to the evaporator can be directly rinsed clean with a water spray bottle, effectively ensuring stable evaporator performance. In actual operation: the fan is first activated to blow away dust adhering to the evaporator surface, and then the compressor is activated for cooling. This effectively reduces dirt accumulation on the evaporator and successfully solves the problem of reduced heat exchange efficiency.

[0014] 3. Install a pressure regulating valve on the refrigerant pipeline to finely adjust the evaporation pressure and accurately control the evaporation temperature to ensure that the difference between the evaporation temperature and the warehouse temperature is always higher than the critical point of condensation, thereby avoiding condensation or less condensation when the air conditioner is running, thereby achieving excellent results in preserving moisture and quality of the grain pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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:

[0016] Figure 1 It is a system diagram of the utility model;

[0017] Figure 2 It is a structural diagram of the present utility model.

[0018] In the figure: 1. Compressor; 2. Gas-liquid separator; 3. Condenser; 4. Condensing axial fan; 5. Dry filter; 6. Expansion valve; 7. Evaporator; 8. Humidifier; 9. Supply fan; 10. Electric sealed air valve for supply air outlet; 11. Supply air outlet flange; 12. Return air outlet flange; 13. Electric sealed air valve for return air outlet; 14. Metal filter for return air outlet; 15. Fresh air outlet flange; 16. Metal filter for fresh air outlet; 17. Electric sealed air valve for fresh air outlet; 18. Low-pressure pressure switch; 19. High-pressure pressure switch; 20. Microcomputer control system. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention 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 present invention.

[0020] See also Figure 1-2 In an embodiment of the utility model, a grain storage warehouse surface rapid cooling air-conditioning integrated machine includes a shell, the shell is provided with an air supply outlet, a return air outlet and a fresh air outlet, the air supply outlet, return air outlet and fresh air outlet are respectively equipped with an electric closed air valve 10 for the air supply outlet, an electric closed air valve 13 for the return air outlet and an electric closed air valve 17 for the fresh air outlet; the air supply outlet, return air outlet and fresh air outlet are respectively provided with an air supply outlet flange 11, a return air outlet flange 12 and a fresh air outlet flange 15, the shell is provided with a return air outlet metal filter 14 at the return air outlet, and a fresh air outlet metal filter 16 is installed in the fresh air outlet.

[0021] A compressor 1, a gas-liquid separator 2, a condenser 3, a condensing axial flow fan 4, a drying filter 5, an expansion valve 6, an evaporator 7, a humidifier 8 and a blower 9 are provided in the shell. The compressor 1 is connected to the condenser 3 and the gas-liquid separator 2 through pipelines respectively, the gas-liquid separator 2 is connected to the evaporator 7 through a pipeline, the condenser 3 is connected to the drying filter 5 through a pipeline, and the drying filter 5 is connected to the expansion valve 6 through a pipeline. A condensing axial flow fan 4 is provided on one side of the condenser 3, and a blower 9 is provided on one side of the humidifier 8.

[0022] The evaporator 7 is made of all-aluminum or copper-aluminum, with a fin pitch of 2mm-3mm. It uses a surge nano-coating or is constructed of all-aluminum, its surface plated with a special thermally conductive, anti-corrosion material, and its temperature sensor meticulously soaked in anti-corrosion paint. This effectively addresses the issue of phosphine fumigation gas corroding the internal unit, significantly extending the air conditioner's service life.

[0023] The evaporator fin design features a fin spacing of 2-3 mm, effectively preventing dust clogging. The lower section of the evaporator is equipped with a high-water level drain pan and a thicker drain pipe. After a period of use, dust adhering to the evaporator can be directly rinsed clean with a watering can, effectively ensuring stable evaporator performance. In actual operation, the fan is first activated to blow away dust adhering to the evaporator surface, and then the compressor is activated for cooling. This effectively reduces dirt accumulation on the evaporator and successfully resolves the problem of reduced heat exchange efficiency.

[0024] A high-pressure switch 19 and a high-pressure pressure gauge are installed on the pipeline between the compressor 1 and the condenser 3 , and a low-pressure switch 18 , a needle valve and a low-pressure pressure gauge are installed on the pipeline between the compressor 1 and the gas-liquid separator 2 .

[0025] Install a pressure regulating valve on the refrigerant pipeline to finely adjust the evaporation pressure and accurately control the evaporation temperature, ensuring that the difference between the evaporation temperature and the warehouse temperature is always higher than the critical point of condensation, avoiding condensation or less condensation when the air conditioner is running, thereby achieving excellent results in preserving moisture and quality of the grain pile.

[0026] It also includes a microcomputer control system 20, which includes a micro-precision controller to accurately control indoor temperature and humidity, a 7-inch true color control screen, a friendly human-computer interaction interface, and multiple safety protections (shutdown, overload, antifreeze, compressor, etc. protection).

[0027] The first circuit is a direct expansion cooling circuit for hot summer weather, and the second circuit is a ventilation and humidification circuit for winter and its transitional seasons.

[0028] The first circuit comprises a compressor 1, a condenser 3, a filter drier 5, an expansion valve 6, an evaporator 7, and a gas-liquid separator 2. This circuit also includes the air supply fan 9 and the condensing fan 4 in the ventilation system. This circuit is designed to rapidly cool the surface of the grain warehouse during high summer temperatures. Air supply fan 9 is designed with variable frequency control and operates at high frequency when powered on to remove dust from the evaporator surface and prevent clogging. When powered off, it continues to operate for three minutes to dry out condensed water on the evaporator surface and prevent dust accumulation.

[0029] The utility model also includes a second circuit for ventilation and humidification, which is designed to be in energy-saving mode and is controlled by an outdoor temperature and humidity probe. When the outdoor temperature and humidity probe detects that the outdoor temperature and humidity are relatively consistent with the set temperature and humidity, the device starts to switch to the second circuit, which includes a blower 9, a humidifier 8, a closed air valve 10 for the air supply outlet, a closed air valve 13 for the return air outlet, and a closed air valve 17 for the fresh air outlet. The compressor of this circuit does not start, and the energy-saving ventilation mode is operated. At this time, the blower 9 is turned on, the closed air valve 13 for the return air outlet is closed, the closed air valve 17 for the fresh air outlet is opened, and the closed air valve 10 for the air supply outlet is opened. At this time, the fresh air mode is operated, and the device is linked to the exhaust fan at the top of the grain depot. In this mode, the granary exhaust fan and the grain depot air conditioner are started and shut down at the same time. When the humidity is low during ventilation, the humidifier water valve is opened, the humidifier is started, and the air is humidified to meet the humidity requirements of the grain depot. In this mode, only the fan of the device is turned on, which effectively saves energy.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A grain storage warehouse surface rapid cooling air conditioning integrated machine, including a housing, characterized by: The housing is provided with an air supply port, an air return port and a fresh air port, wherein the air supply port, the air return port and the fresh air port are respectively provided with an air supply port electric sealed air valve (10), an air return port electric sealed air valve (13) and a fresh air port electric sealed air valve (17); A compressor (1), a gas-liquid separator (2), a condenser (3), a condensing axial flow fan (4), a drying filter (5), an expansion valve (6), an evaporator (7), a humidifier (8) and a blower (9) are arranged in the shell. The compressor (1) is connected to the condenser (3) and the gas-liquid separator (2) through pipelines, respectively. The gas-liquid separator (2) is connected to the evaporator (7) through a pipeline. The condenser (3) is connected to the drying filter (5) through a pipeline. The drying filter (5) is connected to the expansion valve (6) through a pipeline. A condensing axial flow fan (4) is arranged on one side of the condenser (3), and a blower (9) is arranged on one side of the humidifier (8).

2. The grain storage warehouse surface rapid cooling air conditioning integrated machine according to claim 1, characterized in that: The evaporator (7) is made of all-aluminum material or copper-aluminum material, and the fin spacing of the evaporator (7) is 2mm-3mm.

3. The grain storage warehouse surface rapid cooling air conditioning integrated machine according to claim 1, characterized in that: A high-pressure switch (19) and a high-pressure pressure gauge are installed on the pipeline between the compressor (1) and the condenser (3).

4. The grain storage warehouse surface rapid cooling air conditioner according to claim 1 or 3, characterized in that: A low-pressure switch (18), a needle valve and a low-pressure gauge are installed on the pipeline between the compressor (1) and the gas-liquid separator (2).

5. The grain storage warehouse surface rapid cooling air conditioner according to claim 1, characterized in that: The air supply outlet, return air outlet and fresh air outlet are respectively provided with an air supply outlet flange (11), a return air outlet flange (12) and a fresh air outlet flange (15); the shell is provided with a return air outlet metal filter (14) at the return air outlet, and a fresh air outlet metal filter (16) is installed in the fresh air outlet.

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