Anti-corrosion granary low-temperature unit

Abstract

The utility model discloses an anti-corrosion granary low-temperature unit which comprises a machine box, the interior of the machine box is divided into a mechanical chamber and a low-temperature air channel through a partition plate, an evaporator is installed in the middle of the low-temperature air channel and comprises two installation plates and a plurality of snakelike copper pipes, and the snakelike copper pipes are installed between the two installation plates. An aluminum foil corrugated pipe is sleeved on the linear section of the snakelike copper pipe; the evaporator divides the low-temperature air channel into an air inlet bin and an air supply bin, an air inlet connecting pipe communicated with the air inlet bin and an air supply connecting pipe communicated with the air supply bin are arranged on the machine box, and an air feeder is installed in the air supply bin. The installation plate, the bent section and the two ends of the snake-shaped copper pipe, the inner side surface of the low-temperature air channel and the surface of the portion, making contact with air, of the air feeder are all coated with an anti-corrosion coating film and a super-hydrophobic coating film. The heat exchanger has the beneficial effects that the aluminum foil corrugated pipe is used for protecting the linear section of the snake-shaped copper pipe, the linear section of the snake-shaped copper pipe is prevented from being corroded, and the aluminum foil corrugated pipe is used as a fin for heat transfer; and the granary low-temperature unit is prevented from being corroded and damaged.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration equipment, in particular to an anti-corrosion type granary low-temperature unit. Background Art

[0002] In order to prevent grain from mildew and pests, improve the quality of grain preservation and extend the storage time of grain, some medicines are added to the barn. These medicines fill the space inside the barn. When the granary low-temperature unit that cools the barn is working, the volatilized medicines will be mixed in the air, and the water vapor in the air will condense into condensed water when it encounters the evaporator of the granary low-temperature unit. The medicines mixed in the air will dissolve in the condensed water. The condensed water with medicines dissolved in it can easily corrode the coil of the evaporator and the places where the air can contact in the granary low-temperature unit. Once the coil is corroded and refrigerant leaks, the air conditioner will not be able to cool normally. The places where the air can contact in the granary low-temperature unit are also prone to damage. Utility Model Content

[0003] The purpose of the utility model is to overcome the above problems existing in the prior art and provide an anti-corrosion type granary low-temperature unit.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A corrosion-resistant granary low-temperature unit comprises a chassis, the interior of the chassis is divided into a mechanical room and a low-temperature air duct by a partition, an evaporator is installed in the middle of the low-temperature air duct, the evaporator comprises two symmetrical mounting plates and a plurality of serpentine copper tubes, the serpentine copper tubes are installed between the two mounting plates, and an aluminum foil corrugated tube is sleeved on the straight section of the serpentine copper tube; the evaporator divides the low-temperature air duct into an air inlet bin and an air supply bin, the chassis is provided with an air inlet connecting pipe communicated with the air inlet bin, and an air supply connecting pipe communicated with the air supply bin, an air blower is installed in the air supply bin, the air inlet of the air blower faces the evaporator, and the air outlet of the air blower is butt-jointed with the air supply connecting pipe; the mounting plate, the curved section and both ends of the serpentine copper tube, the outer surface of the aluminum foil corrugated tube, the inner surface of the low-temperature air duct, and the surface of the air contact part of the air blower are all coated with an anti-corrosion coating and a super-hydrophobic coating, and the super-hydrophobic coating covers the anti-corrosion coating.

[0006] Wherein, the inner diameter of the aluminum foil corrugated tube is equal to the outer diameter of the straight section of the serpentine copper tube.

[0007] Wherein, the outer diameter of the aluminum foil corrugated tube is 1.5 to 3 times the inner diameter of the aluminum foil corrugated tube.

[0008] Among them, the spacing distance between two adjacent serpentine copper tubes is greater than the outer diameter of the aluminum foil corrugated tube, and the spacing distance between two adjacent straight segments on the same serpentine copper tube is greater than the outer diameter of the aluminum foil corrugated tube.

[0009] Wherein, two adjacent vertical rows of aluminum foil corrugated tubes on the evaporator are arranged in a staggered manner.

[0010] Wherein, a concave water receiving groove is arranged in the middle of the partition, and a drainage pipe is arranged at the bottom of the water receiving groove.

[0011] Among them, a compressor, an L-shaped condenser, a liquid storage tank, and an expansion valve are installed in the mechanical room. The compressor, condenser, liquid storage tank, expansion valve, and evaporator are connected by copper pipes to form a closed refrigerant circulation channel; a condensing fan is installed on the front of the mechanical room, and an electrical control box is installed on one side of the mechanical room. The output end of the electrical control box is connected to the compressor, condensing fan, and air supply fan through wires.

[0012] The beneficial effects of the utility model are as follows: an aluminum foil bellows is put on the straight section of the serpentine copper tube, and the aluminum foil bellows is used to protect the straight section of the serpentine copper tube to prevent the straight section of the serpentine copper tube from being corroded, and the aluminum foil bellows is used as a fin to transfer heat; the anti-corrosion coating is used to protect the mounting plate, the curved section and both ends of the serpentine copper tube, the outer surface of the aluminum foil bellows, the inner surface of the low-temperature air duct, and the surface of the part of the blower that is in contact with the air to prevent damage to the low-temperature unit of the granary due to corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 This is a schematic diagram of the front structure of the anti-corrosion type granary low-temperature unit in the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the anti-corrosion type low-temperature unit of the utility model after the front case is partially opened;

[0016] Figure 3 It is a schematic diagram of the structure of the evaporator in the utility model from the side;

[0017] Figure 4 It is a cross-sectional view of the evaporator in the utility model;

[0018] Explanation of the numbers in the figure: chassis 1, partition 2, water trough 21, mechanical room 3, low-temperature air duct 4, air inlet compartment 41, air inlet connecting pipe 411, air supply compartment 42, air supply connecting pipe 421, evaporator 5, mounting plate 51, serpentine copper tube 52, aluminum foil bellows 53, air supply fan 6, compressor 7, condenser 8, liquid storage tank 9, condensing fan 10, electric control box 11. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0020] like Figures 1 to 4 As shown, an anti-corrosion granary low-temperature unit includes a chassis 1, the interior of the chassis 1 is divided into a machine room 3 and a low-temperature air duct 4 by a partition 2, an evaporator 5 is installed in the middle of the low-temperature air duct 4, the evaporator 5 includes two symmetrical mounting plates 51 and a plurality of serpentine copper tubes 52, the serpentine copper tube 52 is installed between the two mounting plates 51, an aluminum foil corrugated tube 53 is sleeved on the straight section of the serpentine copper tube 52, the inner diameter of the aluminum foil corrugated tube 53 is equal to the outer diameter of the straight section of the serpentine copper tube 52, the spacing distance between two adjacent serpentine copper tubes 52 is greater than the outer diameter of the aluminum foil corrugated tube 53, and the spacing distance between two adjacent straight sections on the same serpentine copper tube 52 is greater than the outer diameter of the aluminum foil corrugated tube 53.

[0021] In this embodiment, in order to ensure that the aluminum foil bellows 53 has a sufficiently large contact area with the air, the outer diameter of the aluminum foil bellows 53 is twice the inner diameter of the aluminum foil bellows 53 .

[0022] In addition, the outer diameter of the aluminum foil bellows 53 can be between 1.5 and 3 times the inner diameter of the aluminum foil bellows 53 to meet the design requirements.

[0023] In order to ensure that the air passing through the evaporator 5 is in full contact with the aluminum foil bellows 53 , the aluminum foil bellows 53 in two adjacent vertical rows on the evaporator 5 are arranged in a staggered manner.

[0024] The evaporator 5 divides the low-temperature air duct 4 into an air inlet compartment 41 and an air supply compartment 42. The chassis 1 is provided with an air inlet connecting pipe 411 connected to the air inlet compartment 41 and an air supply connecting pipe 421 connected to the air supply compartment 42. An air supply fan 6 is installed in the air supply compartment 42. The air inlet of the air supply fan 6 faces the evaporator 5, and the air outlet of the air supply fan 6 is connected to the air supply connecting pipe 421.

[0025] The mounting plate 51, the curved section and both ends of the serpentine copper tube 52, the outer surface of the aluminum foil bellows 53, the inner surface of the low-temperature air duct 4, and the surface of the air-contacting part of the blower 6 are all coated with an anti-corrosion coating and a super-hydrophobic coating, and the super-hydrophobic coating covers the anti-corrosion coating. The anti-corrosion coating is used to prevent the mounting plate 51, the curved section and both ends of the serpentine copper tube 52, the outer surface of the aluminum foil bellows 53, the inner surface of the low-temperature air duct 4, and the surface of the air-contacting part of the blower 6 from being corroded, and the super-hydrophobic coating is used to prevent condensed water from adhering to the mounting plate 51, the curved section and both ends of the serpentine copper tube 52, the outer surface of the aluminum foil bellows 53, the inner surface of the low-temperature air duct 4, and the surface of the air-contacting part of the blower 42.

[0026] A concave water receiving groove 21 is provided in the middle of the partition plate 2 , the bottom of the evaporator 5 is inserted into the water receiving groove 21 , and a drain pipe is provided at the bottom of the water receiving groove 21 .

[0027] A compressor 7, an L-shaped condenser 8, a liquid storage tank 9, and an expansion valve are installed in the mechanical room 3. The compressor 7, condenser 8, liquid storage tank 9, expansion valve, and evaporator 5 are connected by copper pipes to form a closed refrigerant circulation channel; a condensing fan 10 is installed on the front of the mechanical room 3, and an electric control box 11 is installed on one side of the mechanical room 3. The output end of the electric control box 11 is connected to the compressor 7, the condensing fan 10, and the air supply fan 6 through wires.

[0028] An aluminum foil bellows is put on the straight section of the serpentine copper tube to protect the straight section of the serpentine copper tube from corrosion, and the aluminum foil bellows is used as a fin to transfer heat. An anti-corrosion coating is used to protect the mounting plate, the curved section and both ends of the serpentine copper tube, the outer surface of the aluminum foil bellows, the inner surface of the low-temperature air duct, and the surface of the air contact part of the blower to prevent damage to the low-temperature unit of the granary due to corrosion.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An anti-corrosion granary low temperature unit, characterized by: It includes a chassis, the interior of the chassis is divided into a mechanical room and a low-temperature air duct by a partition, an evaporator is installed in the middle of the low-temperature air duct, the evaporator includes two symmetrical mounting plates and a plurality of serpentine copper tubes, the serpentine copper tubes are installed between the two mounting plates, and an aluminum foil corrugated tube is sleeved on the straight section of the serpentine copper tube; the evaporator divides the low-temperature air duct into an air inlet bin and an air supply bin, the chassis is provided with an air inlet connecting pipe communicated with the air inlet bin, and an air supply connecting pipe communicated with the air supply bin, an air blower is installed in the air supply bin, the air inlet of the air blower faces the evaporator, and the air outlet of the air blower is connected to the air supply connecting pipe; the mounting plate, the curved section and both ends of the serpentine copper tube, the inner surface of the low-temperature air duct, and the surface of the air contact part of the air blower are all coated with an anti-corrosion coating and a super-hydrophobic coating, and the super-hydrophobic coating covers the anti-corrosion coating.

2. The anti-corrosion type granary low temperature unit according to claim 1 is characterized in that: The inner diameter of the aluminum foil corrugated tube is equal to the outer diameter of the straight section of the serpentine copper tube.

3. The anti-corrosion type granary low temperature unit according to claim 1 is characterized by: The outer diameter of the aluminum foil corrugated pipe is 1.5 to 3 times the inner diameter of the aluminum foil corrugated pipe.

4. The anti-corrosion type granary low temperature unit according to claim 1 is characterized in that: The spacing distance between two adjacent serpentine copper tubes is greater than the outer diameter of the aluminum foil corrugated tube, and the spacing distance between two adjacent straight sections on the same serpentine copper tube is greater than the outer diameter of the aluminum foil corrugated tube.

5. The anti-corrosion type granary low temperature unit according to claim 1 is characterized by: The aluminum foil corrugated tubes in two adjacent vertical rows on the evaporator are arranged in a staggered manner.

6. The anti-corrosion type granary low temperature unit according to claim 1 is characterized by: A concave water receiving groove is arranged in the middle of the partition, and a drainage pipe is arranged at the bottom of the water receiving groove.

7. The anti-corrosion type granary low temperature unit according to claim 1 is characterized by: A compressor, an L-shaped condenser, a liquid storage tank, and an expansion valve are installed in the mechanical room. The compressor, condenser, liquid storage tank, expansion valve, and evaporator are connected by copper pipes to form a closed refrigerant circulation channel; a condensing fan is installed on the front of the mechanical room, and an electrical control box is installed on one side of the mechanical room. The output end of the electrical control box is connected to the compressor, condensing fan, and air supply fan through wires.

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