Compression condensing unit and method capable of quickly evaporating condensate water of air curtain cabinet

Abstract

The invention provides a compression condensing unit and method capable of rapidly evaporating condensate water of an air curtain cabinet, and particularly relates to the technical field of refrigeration equipment. The compression condensing unit is mounted in a compressor chamber at the bottom of an inner container of a box body of the air curtain cabinet, and comprises a condenser, a compressor, a water pump and a condensed water evaporation assembly, the condensate water evaporation assembly comprises a water storage box, an evaporation box and an evaporation coil; the water storage box is connected with a condensate water drainage pipe of the air curtain cabinet; a condensation fan is arranged on the side, close to the compressor, of the condenser. The compressor and the water pump are arranged between the condenser and the condensate water evaporation assembly; and the water pump is controlled by the time relay to regularly pump condensate water from the water storage box to the evaporation box. According to the air curtain cabinet, the aim of efficiently and rapidly evaporating condensate water in the air curtain cabinet can be achieved by considering three factors, namely the liquid surface area, the temperature and the air flowing speed, which influence the liquid evaporation speed.

Description

Technical Field

[0001] The patent of this invention relates to the technical field of refrigeration equipment, and specifically to a compression condensing unit and method that can quickly evaporate condensed water in an air curtain cabinet. Background Art

[0002] Air curtain cabinet is a product that can preserve perishable goods or food at low temperature, as well as display and sell goods or food. The storage and access area is open, and customers can freely touch or take goods, which creates a casual and relaxed shopping environment for consumers and promotes commodity sales. It is especially suitable for large supermarkets with large customer flow and frequent customer access to goods. However, due to the continuous infiltration of ambient air into the display cabinet at the air curtain, it brings in heat. Compared with closed display cabinets, open display cabinets consume more energy and produce a large amount of condensed water.

[0003] At present, the common air curtain cabinets on the market are generally divided into self-contained and remote-mounted structures. Among them, the remote-mounted structure needs to be installed before it can be used normally. The condensed water can be discharged into the corresponding condensed water pipe during the installation process; the self-contained structure can be used by plugging in. For the treatment of condensed water, it is usually equipped with a water bucket for storing condensed water. The clerk is required to pour it out by himself after the water bucket is full. However, this structure has the following problems: the air curtain cabinet is an open structure, and the external ambient air at the air curtain constantly penetrates into the display cabinet and brings in heat, which will produce a large amount of condensed water. The water bucket will be full in a very short time, and the clerk needs to pour the water more frequently; in addition, if the clerk fails to pour out the water in time, the overflowing condensed water will flow to the ground. If the customer steps on the water stains, there is a risk of slipping. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a compression condensing unit and method for rapidly evaporating condensed water of an air curtain cabinet. The specific technical scheme is as follows:

[0005] A compression condensing unit for rapidly evaporating condensed water from an air curtain cabinet is installed in a compressor room at the bottom of an air curtain cabinet body, and comprises a condenser, a compressor, a water pump and a condensed water evaporation component; the condensed water evaporation component comprises a water storage box, an evaporation box and an evaporation coil; the water storage box is connected to a condensed water drain pipe of the air curtain cabinet; the evaporation coil is arranged in the evaporation box; a condensing fan is arranged on the side of the condenser close to the compressor; the compressor and the water pump are arranged between the condenser and the condensed water evaporation component; the water pump is controlled by a time relay to draw condensed water from the water storage box into the evaporation box at a fixed time.

[0006] Preferably, the water storage box is fixed above the evaporation box by a bracket.

[0007] Preferably, the water inlet and the water outlet of the water pump are connected to the water storage box and the evaporation box respectively through water pipes.

[0008] Also preferably, the inlet end of the evaporation coil is connected to the outlet end of the exhaust pipe of the compressor; and the outlet end of the evaporation coil is connected to the inlet end of the condenser.

[0009] Further preferably, the condensing fan adopts an exhaust type structure.

[0010] More preferably, the condenser, condensing fan, water pump, compressor and time relay are all electrically connected to the control system of the air curtain cabinet.

[0011] A method for quickly evaporating condensed water in an air curtain cabinet adopts the above-mentioned compression condensing unit: first, the condensed water generated in the air curtain cabinet is discharged into a water storage box of a condensed water evaporation component through a condensed water drain pipe, and the condensed water in the water storage box is pumped to the evaporation box below by a water pump at a fixed time. The evaporation coil located in the evaporation box is connected to the exhaust pipe outlet end of the compressor and the inlet end of the condenser at its inlet end and outlet end respectively. The high-temperature gas discharged from the exhaust pipe of the compressor increases the temperature of the coil, thereby heating the condensed water in the evaporation box and promoting the evaporation of the condensed water; secondly, the water pump controls the timed and quantitative replenishment of water into the evaporation box through a time relay to ensure that the surface area of ​​the liquid level remains unchanged; finally, the condensing fan absorbs the heat brought by the heat dissipation of the condenser, and blows out hot air toward the side where the evaporation box is located, thereby improving the air flow and increasing the temperature of the condensed water in the water storage box and the evaporation box, further accelerating the evaporation rate of the condensed water.

[0012] The beneficial effects of the present invention are:

[0013] 1. The present invention has a simple structure and is easy to install. The water pump controls the timing and quantitative replenishment of water into the evaporation box by setting a time relay to ensure that the surface area of ​​the liquid surface remains unchanged, thereby avoiding the influence on the evaporation rate due to the gradual reduction of the surface area of ​​the liquid surface during the evaporation process;

[0014] 2. The condensing fan of the present invention absorbs the heat brought by the heat dissipation of the condenser, and the hot air blown out can achieve the purpose of increasing air flow and also play a certain role in heating the condensed water;

[0015] 3. The evaporation coil in the present invention is connected to the high-temperature exhaust pipe outlet of the compressor, so as to effectively heat and evaporate the condensed water in the evaporation box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting the specification of this application are used to provide further understanding of this application and do not constitute improper limitations on this application.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2It is a schematic diagram of the air flow direction during the ventilation process of the present invention;

[0019] In the figure, 1-condenser; 2-condensing fan; 3-water pump; 4-compressor; 5-water storage box; 6-bracket; 7-evaporation box; 8-evaporation coil; 9-tank body. DETAILED DESCRIPTION

[0020] In conjunction with the accompanying drawings and embodiments, the specific implementation manner of a compression condensing unit and method for rapidly evaporating condensed water from an air curtain cabinet provided by the present invention is further described.

[0021] like Figure 1-2 As shown, a compression condensing unit that can quickly evaporate the condensed water of the air curtain cabinet is installed in the compressor room at the bottom of the inner tank 9 of the air curtain cabinet; the unit includes a condenser 1, a water pump 3, a compressor 4 and a condensed water evaporation component, the water storage box 5 is connected to the condensed water drain pipe of the air curtain cabinet, the water inlet and the water outlet of the water pump 3 are respectively connected to the water storage box 5 and the evaporation box 7 through water pipes, and the condensed water generated by the air curtain cabinet is collected into the water storage box 5 through the condensed water drain pipe.

[0022] Preferably, the condensed water evaporation component includes a water storage box 5, an evaporation box 7 and an evaporation coil 8; the water storage box 5 is fixed above the evaporation box 7 by a bracket 6; a condensing fan 2 is provided on the side of the condenser 1 close to the compressor 4; the water pump 3 and the compressor 4 are arranged between the condenser 1 and the condensed water evaporation component.

[0023] Preferably, in order to avoid affecting the evaporation rate of condensed water due to the reduction of the liquid surface area, the water pump 3 is controlled by a time relay to extract condensed water from the water storage box 5 into the evaporation box 7 in a timely and quantitative manner, so that the surface area of ​​the condensed water remains unchanged and is always equal to the horizontal inner cross-sectional area of ​​the evaporation box 7.

[0024] It is also preferred that an evaporation coil 8 made of a material with good thermal conductivity (including but not limited to copper, aluminum, etc.) is further provided in the evaporation box 7, and the inlet end of the evaporation coil 8 is connected to the outlet end of the high-temperature exhaust pipe of the compressor 4; the outlet end of the evaporation coil 8 is connected to the inlet end of the condenser 1; and the condensed water in the evaporation box 7 is heated by the high-temperature evaporation coil 8.

[0025] Further preferably, the condenser 1, condensing fan 2, water pump 3, compressor 4 and time relay are all electrically connected to the control system of the air curtain cabinet to achieve automatic replenishment of condensed water in the evaporation box 7 and normal operation of the refrigeration system.

[0026] A method for rapidly evaporating condensed water from an air curtain cabinet, using the above-mentioned compression condensing unit, specifically comprising:

[0027] First, the condensed water generated by the air curtain cabinet is discharged into the water storage box of the condensed water evaporation component through the condensed water drainage pipe, and the condensed water in the water storage box is pumped to the evaporation box below by a water pump. The evaporation coil located in the evaporation box has its inlet and outlet ends connected to the outlet end of the compressor exhaust pipe and the inlet end of the condenser respectively. The high-temperature gas discharged from the compressor exhaust pipe increases the temperature of the coil, thereby heating the condensed water in the evaporation box and promoting the evaporation of the condensed water (temperature factor);

[0028] Secondly, the water pump controls the timing and quantity of water replenishment into the evaporation box through the time relay to ensure that the surface area of ​​the liquid remains unchanged; the specific principle is: when other evaporation conditions remain unchanged, when the liquid surface area increases, the number of molecules on the liquid surface also increases, that is, the larger the liquid surface area, the faster the evaporation speed (liquid surface area factor);

[0029] Finally, the condensing fan adopts an exhaust structure. The condensing fan absorbs the heat brought by the condenser's own heat dissipation, and blows out hot air toward the side where the evaporation box is located (such as Figure 2 The air flow rate is increased as shown by the arrow in the middle, which increases the temperature of the condensed water in the water storage box and the evaporation box, further accelerating the evaporation rate of the condensed water (air flow factor).

[0030] The present invention has a simple structure, is easy to install and has a low manufacturing cost; and by combining the three factors that affect the evaporation rate of the liquid (temperature, air flow, and liquid surface area), the purpose of efficiently and quickly evaporating the condensed water in the air curtain cabinet can be achieved.

[0031] In the present invention, the orientation or position relationship indicated by terms such as "upper", "lower", "bottom", "top", etc. is based on the orientation or position relationship shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationship of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention. Terms such as "connected" and "connected" should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present invention can be determined according to specific circumstances, and they cannot be understood as limitations on the present invention.

[0032] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A compression condensing unit capable of rapidly evaporating condensed water from an air curtain cabinet, installed in a compressor room at the bottom of the air curtain cabinet casing, characterized in that: Includes condenser, compressor, water pump and condensate evaporation components; The condensed water evaporation assembly includes a water storage box, an evaporation box and an evaporation coil; the water storage box is connected to the condensed water drain pipe of the air curtain cabinet; the evaporation coil is arranged in the evaporation box; A condensing fan is provided on one side of the condenser close to the compressor; The compressor and the water pump are arranged between the condenser and the condensed water evaporation component; The water pump is controlled by a time relay to regularly extract condensed water from the water storage box into the evaporation box.

2. The compression condensing unit capable of rapidly evaporating condensed water from an air curtain cabinet according to claim 1, characterized in that: The water storage box is fixed above the evaporation box through a bracket.

3. The compression condensing unit capable of rapidly evaporating condensed water from an air curtain cabinet according to claim 2, characterized in that: The water inlet and the water outlet of the water pump are connected to the water storage box and the evaporation box respectively through water pipes.

4. The compression condensing unit capable of rapidly evaporating condensed water from an air curtain cabinet according to claim 1, characterized in that: The inlet end of the evaporation coil is connected to the outlet end of the exhaust pipe of the compressor; the outlet end of the evaporation coil is connected to the inlet end of the condenser.

5. The compression condensing unit capable of rapidly evaporating condensed water from an air curtain cabinet according to claim 1, characterized in that: The condensing fan adopts an exhaust type structure.

6. The compression condensing unit capable of rapidly evaporating condensed water from an air curtain cabinet according to claim 1, characterized in that: The condenser, condensing fan, water pump, compressor and time relay are all electrically connected to the control system of the air curtain cabinet.

7. A method for rapidly evaporating condensed water from an air curtain cabinet, using the compression condensing unit according to any one of claims 1 to 6, characterized in that: First, the condensed water generated by the air curtain cabinet is discharged into the water storage box of the condensed water evaporation component through the condensed water drain pipe, and the condensed water in the water storage box is pumped to the evaporation box below by a water pump at a fixed time. The evaporation coil located in the evaporation box is connected to the exhaust pipe outlet of the compressor and the inlet end of the condenser at its inlet and outlet ends respectively. The high-temperature gas discharged from the exhaust pipe of the compressor increases the temperature of the evaporation coil, thereby heating the condensed water in the evaporation box and promoting the evaporation of the condensed water; secondly, the water pump controls the timed and quantitative replenishment of water into the evaporation box through a time relay to ensure that the surface area of ​​the liquid remains unchanged; finally, the condensing fan absorbs the heat brought by the heat dissipation of the condenser, and blows out hot air toward the side where the evaporation box is located, thereby improving the air flow while increasing the temperature of the condensed water in the water storage box and the evaporation box, further accelerating the evaporation rate of the condensed water.

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