Evaporation section airtight air conditioner special for granary

Abstract

The utility model belongs to the technical field of granaries, and relates to an evaporation section airtight air conditioner special for a granary, which comprises a compressor, a condenser, an expansion valve and an evaporator which are sequentially connected to form a circulating refrigeration system. One side of the upper cavity is provided with a closed box body for accommodating an evaporator, the other side of the upper cavity is provided with a single-side air inlet centrifugal blower, and the closed box body is provided with a box body side through hole corresponding to a fan air inlet of the single-side air inlet centrifugal blower; an air conditioner air inlet communicated with the closed box body and an air conditioner air outlet corresponding to a fan air outlet of the single-side air inlet centrifugal blower are formed in one side of the machine shell; the evaporator divides the closed box body into a high-temperature cavity and a low-temperature cavity, the air conditioner air inlet is communicated with the high-temperature cavity, and the box body side through hole is communicated with the low-temperature cavity. According to the special air-tightness air conditioner for the evaporation section of the granary, the air tightness of the evaporation section of the air-tightness air conditioner is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain bins and relates to an air conditioner with airtightness for the evaporation section dedicated to grain bins. Background Art

[0002] In order to ensure the storage quality, temperature control and quality preservation are required for storing grains in grain bins. Generally, special air conditioners for grain bins are used for temperature control in grain bins. The special air conditioners for grain bins cool the grain storage rooms to ensure a constant temperature in the granary, meeting the temperature requirements of grains.

[0003] The existing special air conditioners for grain bins are generally installed outdoors and need to be connected to the indoor side by opening holes. Therefore, increasing the airtightness of the evaporation section of the special air conditioner for grain bins not only has an important impact on the performance of the air conditioner, but also has an important relationship with the overall airtightness of the granary. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an air conditioner with airtightness for the evaporation section dedicated to grain bins, improving the airtightness of the evaporation section of the special air conditioner for grain bins, thereby improving the performance of the air conditioner and the overall airtightness of the granary.

[0005] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0006] An air conditioner with airtightness for the evaporation section dedicated to grain bins includes a compressor, a condenser, an expansion valve, and an evaporator that are connected in sequence to form a circulating refrigeration system. An upper cavity and a lower cavity are arranged inside the housing of the air conditioner. One side of the upper cavity is provided with a sealed box for accommodating the evaporator, and the other side is provided with a single-side inlet centrifugal blower. A box-side through hole corresponding to the blower air inlet of the single-side inlet centrifugal blower is arranged on the sealed box. One side of the housing is provided with an air conditioner air inlet communicating with the sealed box and an air conditioner air outlet corresponding to the blower air outlet of the single-side inlet centrifugal blower; the evaporator divides the sealed box into a high-temperature cavity and a low-temperature cavity, the air conditioner air inlet communicates with the high-temperature cavity, and the box-side through hole communicates with the low-temperature cavity.

[0007] In the above air conditioner with airtightness for the evaporation section dedicated to grain bins, the sealed box is formed by surrounding with sheet metal, and a heat-insulating material layer is laid inside the sheet metal. Preferably, the material of the sheet metal is aluminum alloy or stainless steel, and the material of the heat-insulating material layer is heat-insulating cotton, glass fiber or foaming material.

[0008] In the above air conditioner with airtightness for the evaporation section dedicated to grain bins, the evaporator is distributed horizontally in the sealed box and divides the sealed box into a front high-temperature cavity and a rear low-temperature cavity.

[0009] In the above-mentioned airtight air conditioner for the evaporation section dedicated to grain storage, the axis of the single-side inlet centrifugal blower is longitudinally distributed in the upper cavity.

[0010] In the above-mentioned airtight air conditioner for the evaporation section dedicated to grain storage, the air inlet of the air conditioner is directly formed on the sealed box body and passes out from one side of the casing; the side through hole of the box body is connected to the air inlet of the blower by a flexible heat-insulating pipeline.

[0011] In the above-mentioned airtight air conditioner for the evaporation section dedicated to grain storage, the sheet metal of the high-temperature cavity opposite to the evaporator is set as an arc-shaped sheet metal structure, and the arc-shaped sheet metal structure connects the front end of the left-side sheet metal and the rear end of the right-side sheet metal of the high-temperature cavity.

[0012] In the above-mentioned airtight air conditioner for the evaporation section dedicated to grain storage, the condenser is arranged in the lower cavity, the compressor and the expansion valve are arranged outside the casing corresponding to the lower cavity, the compressor is connected with a liquid storage tank, the front end of the expansion valve is connected with a filter, and the refrigerant of the circulating refrigeration system flows into the expansion valve after being filtered by the filter.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides an airtight air conditioner for the evaporation section dedicated to grain storage. The evaporator is placed in a sealed box body, and the heat exchange of the entire evaporation section of the circulating refrigeration system is completed in a sealed space. At the same time, the single-side inlet centrifugal blower is used in cooperation on the low-temperature cavity side of the sealed box body to accurately convey the low-temperature gas in the sealed box body into the grain storage. By improving the airtightness of the evaporation section of the air conditioner dedicated to grain storage and using a centrifugal blower with a specific structure in cooperation, the utility model improves the performance of the air conditioner dedicated to grain storage and the overall airtightness of the grain storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model in the front view direction;

[0016] Figure 2 is a schematic structural diagram of the utility model in the top view direction;

[0017] Reference numerals: 1. Compressor; 2. Condenser; 3. Expansion valve; 4. Evaporator; 5. Casing; 6. Upper cavity; 7. Lower cavity; 8. Sealed box body; 9. Single-side inlet centrifugal blower; 10. Air inlet of the blower; 11. Side through hole of the box body; 12. Air inlet of the air conditioner; 13. Air outlet of the blower; 14. Air outlet of the air conditioner; 15. High-temperature cavity; 16. Low-temperature cavity; 17. Liquid storage tank; 18. Filter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the utility model with specific embodiments in conjunction with the drawings. SeeFigure 1-2 :

[0019] An air conditioner with airtightness for the evaporation section dedicated to a granary, comprising a compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4 which are connected in sequence to form a circulating refrigeration system. An upper cavity 6 and a lower cavity 7 are arranged in the housing 5 of the air conditioner. On one side of the upper cavity 6, there is a sealed box body 8 for accommodating the evaporator 4, and on the other side, there is a single-sided inlet centrifugal blower 9. A box body side through hole 11 corresponding to the blower air inlet 10 of the single-sided inlet centrifugal blower 9 is arranged on the sealed box body 8. On one side of the housing 5, there is an air conditioner air inlet 12 communicated with the sealed box body 8, and an air conditioner air outlet 14 corresponding to the blower air outlet 13 of the single-sided inlet centrifugal blower 9. The evaporator 4 divides the sealed box body 8 into a high-temperature cavity 15 and a low-temperature cavity 16. The air conditioner air inlet 12 is communicated with the high-temperature cavity 15, and the box body side through hole 11 is communicated with the low-temperature cavity 16.

[0020] The working process of this embodiment is as follows: The compressor 1 compresses the gas to form a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is changed into a medium-temperature and high-pressure liquid refrigerant by heat dissipation through the condenser 2. After throttling through the expansion valve 3, it forms a low-temperature and low-pressure liquid refrigerant, and then absorbs heat and evaporates through the evaporator 4 to form a low-temperature and low-pressure gaseous refrigerant after heat exchange, and then circulates back to the compressor 1. The heat exchange process of the evaporation section in this embodiment is as follows: Driven by the single-sided inlet centrifugal blower 9, the high-temperature gas in the granary enters the high-temperature cavity 15 through the air conditioner air inlet 12, and flows from the high-temperature cavity 15 to the low-temperature cavity 16. During the flowing process, it passes through the evaporator 4 and exchanges heat with the refrigerant to form a low-temperature gas. The low-temperature gas enters the blower interior through the blower air inlet 10 of the single-sided inlet centrifugal blower 9, and then enters the granary through the blower air outlet 13 and the air conditioner air outlet 14 in sequence.

[0021] Contrast the attached Figure 2 , in this embodiment, except for the air conditioner air inlet 12 entering the sealed box body 8 and the box body side through hole 11 discharging the sealed box body 8, the sealed box body 8 is of a sealed structure. Therefore, the heat exchange process of the entire evaporation section of the circulating refrigeration system is completed inside the sealed box body 8. In this embodiment, the sealed box body 8 is surrounded by sheet metal. In order to increase the heat exchange effect of the sealed box body 8, a heat-insulating material layer is laid inside the sheet metal. Preferably, the material of the sheet metal is aluminum alloy or stainless steel, and the material of the heat-insulating material layer is heat-insulating cotton, glass fiber or foaming material.

[0022] Its specific layout is that the evaporator 4 is distributed horizontally in the sealed box body 8 and divides the sealed box body 8 into a front high-temperature cavity 15 and a rear low-temperature cavity 16; the axis of the single-sided inlet centrifugal blower 9 is distributed longitudinally in the upper cavity 6.

[0023] To achieve better airtightness and prevent gas leakage at the inlet and outlet of the sealed box body 8, the air inlet 12 of the air conditioner is directly formed on the sealed box body 8 and passes through one side of the casing 5; the through hole 11 on the box body side is connected to the air inlet 10 of the fan by a flexible heat-insulating pipe.

[0024] To facilitate the flow of gas, prevent the existence of gas dead zones, and enable the high-temperature gas in the high-temperature cavity 15 to pass through the evaporator 4 more smoothly into the low-temperature cavity 16, the sheet metal of the high-temperature cavity 15 opposite to the evaporator 4 is set as an arc-shaped sheet metal structure, and the arc-shaped sheet metal structure connects the front end of the left sheet metal and the rear end of the right sheet metal of the high-temperature cavity 15.

[0025] In contrast to the attached Figure 1 , the other structures of the circulating refrigeration system in this embodiment are: the condenser 2 is arranged in the lower cavity 7, the compressor 1 and the expansion valve 3 are arranged outside the casing 5 corresponding to the lower cavity 7, the compressor 1 is connected with a liquid storage tank 17, the front end of the expansion valve 3 is connected with a filter 18, and the refrigerant of the circulating refrigeration system flows into the expansion valve 3 after being filtered by the filter 18.

[0026] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An evaporation section airtight air conditioner for a granary, comprising a compressor (1), a condenser (2), an expansion valve (3) and an evaporator (4) which are sequentially connected to form a circulating refrigeration system. An upper cavity (6) and a lower cavity (7) are arranged in a casing (5) of the air conditioner. It is characterized in that, On one side of the upper cavity (6), there is a sealed box body (8) for accommodating the evaporator (4), and on the other side, there is a single-inlet centrifugal blower (9). A box body side through hole (11) corresponding to the blower air inlet (10) of the single-inlet centrifugal blower (9) is provided on the sealed box body (8). On one side of the machine shell (5), there is an air conditioner air inlet (12) communicating with the sealed box body (8) and an air conditioner air outlet (14) corresponding to the blower air outlet (13) of the single-inlet centrifugal blower (9); the evaporator (4) divides the sealed box body (8) into a high-temperature cavity (15) and a low-temperature cavity (16), the air conditioner air inlet (12) communicates with the high-temperature cavity (15), and the box body side through hole (11) communicates with the low-temperature cavity (16).

2. The airtightness air conditioner for the evaporation section dedicated to a granary according to claim 1, wherein The sealed box body (8) is formed by enclosing sheet metal, and a heat insulation material layer is laid inside the sheet metal.

3. The airtightness air conditioner for the evaporation section dedicated to a granary according to claim 2, characterized in that, The evaporator (4) is horizontally distributed in the sealed box body (8) and divides the sealed box body (8) into a high-temperature cavity (15) at the front side and a low-temperature cavity (16) at the rear side.

4. The airtightness air conditioner for the evaporation section specifically used for a granary according to claim 3, characterized in that, The axis of the single-inlet centrifugal blower (9) is longitudinally distributed in the upper cavity (6).

5. The airtightness air conditioner for the evaporation section dedicated to a granary according to claim 3, characterized in that, The sheet metal of the high-temperature cavity (15) opposite to the evaporator (4) is set as an arc-shaped sheet metal structure, and the arc-shaped sheet metal structure connects the front end of the left sheet metal and the rear end of the right sheet metal of the high-temperature cavity (15).

6. The airtightness air conditioner for the evaporation section specially used in a granary according to claim 1, wherein, The condenser (2) is arranged in the lower cavity (7), the compressor (1) and the expansion valve (3) are arranged outside the machine shell (5) corresponding to the lower cavity (7). The compressor (1) is connected with a liquid storage tank (17), and the front end of the expansion valve (3) is connected with a filter (18). The refrigerant of the circulating refrigeration system flows into the expansion valve (3) after being filtered by the filter (18).

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