Self-dedusting micro-channel condenser applied to refrigeration display cabinet

Abstract

The self-dedusting micro-channel condenser comprises a water spraying chamber, a micro-channel condenser body and a condensation fan, the top of the water spraying chamber is open, and the condensation fan, a circulating water sprayer, the micro-channel condenser body and a water receiving box are sequentially arranged on the water spraying chamber from top to bottom. The water receiving box is located at a condensate pipe outlet of the display cabinet, a water level sensing element is arranged on the inner wall of the water receiving box, the water receiving box is connected with the circulating water spray head through a water pump water inlet pipe, a micro water pump is arranged on the water pump water inlet pipe, and a processor is arranged on the outer wall of the water spray chamber. And the processor is in communication connection with the condensate fan, the water level sensing element and the micro water pump. While ash deposition of the condenser is reduced, the surface temperature of the condenser is reduced through water circulation evaporation, heat exchange is further enhanced, the energy efficiency of the system is improved, the service life of the system is effectively prolonged, and the manual ash removal cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration equipment technical field especially a kind of self dusting microchannel condenser applied to refrigeration display cabinet. BACKGROUND

[0002] Compared with traditional heat exchanger, microchannel heat exchanger has the advantages of high efficient heat transfer performance, compact design, high flexibility, low cost, strong corrosion resistance of material and obvious system energy efficiency improvement. It is mainly applied in transportation, high-end manufacturing, energy conservation and environmental protection fields.

[0003] At present, microchannel heat exchanger as condenser also starts to be applied to display cabinet refrigeration system, which reduces the space occupancy rate of display cabinet compressor chamber, improves the heat exchange efficiency of system, reduces the production cost of display cabinet, and has high popularization, but in the use process, due to its compact structure, it is often in outdoor commercial environment, and user use is not standard, etc., which leads to dust problem on the surface of microchannel heat exchanger, increases heat transfer thermal resistance, greatly reduces convective heat transfer efficiency, and further reduces the energy efficiency of the whole system. Dust cannot be treated in time, and serious heat exchange air duct obstruction will significantly reduce heat exchange efficiency, cause the whole system to overheat, and cause safety problems. At the same time, due to the compact structure of microchannel heat exchanger itself, the environment of display cabinet compressor chamber is complex, which brings many troubles for manual cleaning, and limits the further popularization of microchannel condenser. UTILITY MODEL CONTENT

[0004] In order to overcome the above problems in the prior art, the utility model provides a self dusting microchannel condenser applied to refrigeration display cabinet.

[0005] The utility model solves the technical scheme that the utility model adopts: a self dusting microchannel condenser applied to refrigeration display cabinet, including water spraying chamber, microchannel condenser, condensing fan, the water spraying chamber top opening, the water spraying chamber is sequentially provided with condensing fan, circulating water nozzle, microchannel condenser, water receiving box from top to bottom, the water receiving box is located at the condensing water pipe export of display cabinet, water level sensing element is arranged on the inner wall of water receiving box, water receiving box is connected with circulating water nozzle through water pump water inlet pipe, micro water pump is arranged on water pump water inlet pipe, processor is arranged on the outer wall of water spraying chamber, the processor is connected with condensing fan, water level sensing element, micro water pump communication.

[0006] The self dusting microchannel condenser applied to refrigeration display cabinet has a hydrophobic coating on the surface of the microchannel condenser.

[0007] The self dusting microchannel condenser applied to refrigeration display cabinet has an alarm device arranged on the water spraying chamber, and the alarm device is connected with the processor in communication.

[0008] The self-dust-removal micro-channel condenser applied to the refrigeration display cabinet has a louvered vent on the side of the water spraying chamber for communicating with the outside air.

[0009] The self-dust-removal micro-channel condenser applied to the refrigeration display cabinet has a water spraying chamber inside the display cabinet box.

[0010] The self-dust-removal micro-channel condenser applied to the refrigeration display cabinet has a water spraying chamber outside the display cabinet box, and the micro-channel condenser is connected with the compressor and the evaporator inside the display cabinet box through pipelines.

[0011] The self-dust-removal micro-channel condenser applied to the refrigeration display cabinet has a water spraying chamber top cover arranged above the water spraying chamber, the water spraying chamber top cover is in a circular truncated cone structure, and a filter screen is arranged at an opening of the water spraying chamber top cover.

[0012] The micro-channel heat exchanger is completely changed in structure, the water spraying chamber circulating water system is used, the problem of micro-channel dust accumulation during use of the display cabinet is solved, the micro-channel condenser is flushed by means of blowing of the condensing fan, the dust accumulation of the condenser is reduced, the surface temperature of the condenser is reduced by water circulation evaporation, heat exchange is further strengthened, and the energy efficiency of the system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the utility model;

[0014] Figure 2 is a front view of the utility model;

[0015] Figure 3 is a use method schematic view of the utility model.

[0016] 1. condensing fan, 2. water spraying chamber top cover, 3. micro-channel condenser, 4. micro water pump, 5. water pump inlet pipe, 6. circulating water spraying head, 7. condensing water pipe, 8. micro-channel condenser outlet, 9. micro-channel condenser inlet, 10. water receiving box, 11. water spraying chamber, 12. water spraying chamber side wall, 13. processor, 14. water level sensing element, 15. louvered vent. DETAILED DESCRIPTION

[0017] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be described in detail below in combination with the drawings and specific embodiments.

[0018] The embodiment discloses a self-dust-removing micro-channel condenser applied to a refrigeration display cabinet, which comprises a water spraying chamber 11, a micro-channel condenser 3 and a condensing fan 1, the water spraying chamber 11 is provided with the condensing fan 1, a circulating water spraying head 6, the micro-channel condenser 3 and a water receiving box 10 from top to bottom in sequence, the water receiving box 10 is located at the outlet of a condensing water pipe 7 of the display cabinet, a water level sensing element 14 is arranged on the inner wall of the water receiving box 10, the water receiving box 10 is connected with the circulating water spraying head through a water pump water inlet pipe 5, a micro water pump 4 is arranged on the water pump water inlet pipe, a processor 13 is arranged on the side wall 12 of the water spraying chamber, and the processor 13 is in communication connection with the condensing fan 1, the water level sensing element 14 and the micro water pump 4.

[0019] The micro-channel condenser 3 is suspended and fixed in the middle of the water spraying chamber 11, the circulating water spraying head 6 sprays the circulating water on the surface of the micro-channel condenser 3 uniformly, the micro-channel condenser is washed under the action of blowing and scraping of the condensing fan 1 and gravity, and the water drops into the water receiving box 10 below after washing is finished. In the process, the circulating water carries away the dust and heat on the surface of the micro-channel condenser, the condensing water remaining on the surface of the micro-channel condenser evaporates and absorbs heat, the micro-channel condenser is cooled, and the system energy efficiency is further improved.

[0020] In order to prevent the circulating water from remaining on the surface of the micro-channel condenser for too long to cause rust of the micro-channel condenser, a hydrophobic layer is arranged on the surface of the micro-channel sensor.

[0021] The water level sensing element 14 is arranged in the water receiving box, when no condensing water is detected in the water receiving box, a signal is transmitted to the processor 13, after the processor 13 receives the signal, the condensing fan is reversed, the system issues an alarm, and the user is reminded to add water. After the user adds water, the water level sensing element detects the water level change, sends a signal to the processor, the processor receives the signal, the alarm is turned off, and a forward rotation instruction is issued to the condensing fan.

[0022] In order to facilitate the user to add circulating water and clean the water receiving box after receiving the system water shortage signal, the water receiving box adopts a drawer structure which is easy to disassemble in the embodiment.

[0023] The side wall 12 of the water spraying chamber is arranged with a louvered vent 15, which is used together with the upper opening of the water spraying chamber to communicate with the outside air, so as to ensure the normal operation of the circulating air.

[0024] The self-dust-removing micro-channel condenser disclosed by the embodiment can be installed in the display cabinet box. Considering the noise generated by the water spraying chamber, the water spraying chamber and the display cabinet can be remotely disposed, that is, the water spraying chamber can be arranged outdoors, and the display cabinet box is arranged indoors. The micro-channel condenser 3 is connected with the compressor and the evaporator in the display cabinet box through the micro-channel condenser inlet 9 and the micro-channel condenser outlet 8. The condensing fan, the micro water pump and the circulating water nozzle can be adjusted to an adjustable structure according to actual needs.

[0025] The water spraying chamber is provided with a water spraying chamber top cover 2, which is in a circular truncated cone structure, and the upper surface of the water spraying chamber top cover is provided with a filter screen. When the water spraying chamber is placed outdoors, the filter screen can effectively prevent large external impurities from falling into the water spraying chamber.

[0026] When the user powers on the display cabinet, the processor 13 detects that the compressor is started, and at the same time, the water level sensing element 14 in the water receiving box detects that there is no water in the water receiving box (in the initial stage of system operation, there is little condensation water). The processor 13 issues an alarm and sends an instruction to the condensing fan 1. The condensing fan 1 reverses (the wind direction is upward), and the heat exchange is accelerated by forced convection. After the user receives the signal, the water receiving box is pulled out to add circulating water. The water level sensing element 4 detects that condensation water begins to appear in the water receiving box, and the signal is transmitted to the processor. The processor 13 sends an instruction to the condensing fan 1 and the micro water pump 4. The condensing fan 1 starts to rotate in the forward direction, and the micro water pump 4 is turned on. The circulating water in the water receiving box 10 is sucked out, flows along the water pump inlet pipe 5, and is finally sprayed out by the circulating water nozzle 6. With the help of the wind power of the condensing fan 1 and the gravity, the micro-channel condenser 9 is flushed, and the dust on the surface of the micro-channel condenser 9 is removed and falls into the water receiving box 10. After a period of operation, as the evaporator defrosts and the system operates, the surface of the evaporator and the inside of the box begin to generate condensation water. The condensation water drips into the water receiving box 10 along the condensation water pipe 7 to supplement the circulating water. Through the reciprocating blowing and the circulating water flushing, the dust on the surface of the micro-channel condenser 3 is removed, and the heat exchange effect of the micro-channel condenser 3 is improved.

[0027] When the water level is 1 / 3 of the water receiving box 10, the circulating water nozzle is adjusted to a small spray opening, and the flow of the micro water pump 4 is at the minimum gear. The condensing fan is converted to the minimum speed.

[0028] When the water level is between 1 / 2 and 2 / 3 of the water receiving box, it is adjusted to a medium spray opening, the flow of the micro water pump 4 is at the medium gear, and the condensing fan is converted to the medium speed.

[0029] When the water level is above 2 / 3 of the water receiving box, it is adjusted to a maximum spray opening, the flow of the micro water pump 4 is at the highest gear, and the condensing fan is converted to the highest speed to accelerate the circulation and evaporation of the circulating water.

[0030] The above examples are only exemplary embodiments of the present application and are not intended to limit the present application. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall also be considered to fall within the protection scope of the present application.

Claims

1. A self-cleaning microchannel condenser for use in a refrigerated display case, comprising: The utility model relates to a water spraying chamber, a microchannel condenser and a condensing fan, wherein the water spraying chamber is open at the top, and the water spraying chamber is sequentially provided from top to bottom with the condensing fan, a circulating water nozzle, the microchannel condenser and a water receiving box, the water receiving box is located at the outlet of the condensing water pipe of the display cabinet, the inner wall of the water receiving box is provided with a water level sensing element, the water receiving box is connected with the circulating water nozzle through a water pump water inlet pipe, a micro water pump is arranged on the water pump water inlet pipe, a processor is arranged on the outer wall of the water spraying chamber, and the processor is in communication connection with the condensing fan, the water level sensing element and the micro water pump.

2. A self-cleaning micro-channel condenser for use in a refrigerated display cabinet according to claim 1, wherein, The surface of the microchannel condenser is provided with a hydrophobic coating.

3. A self-cleaning micro-channel condenser for use in a refrigerated display cabinet according to claim 1, wherein, An alarm device is further arranged on the water spraying chamber and is in communication connection with the processor.

4. A self-cleaning micro-channel condenser for use in a refrigerated display cabinet according to claim 1, wherein, A louvered ventilation opening for communicating with the outside air is arranged on the side of the water spraying chamber.

5. A self-cleaning micro-channel condenser for use in a refrigerated display cabinet according to claim 1, wherein, The water spraying chamber is located inside the display cabinet box.

6. A self-cleaning micro-channel condenser for use in a refrigerated display cabinet according to claim 1, wherein, The water spraying chamber is located outside the display cabinet box, and the microchannel condenser is connected with the compressor and the evaporator in the display cabinet box through a pipeline.

7. A self-cleaning micro-channel condenser for use in a refrigerated display cabinet according to claim 6, wherein, A water spraying chamber top cover is arranged above the water spraying chamber, the water spraying chamber top cover is in the structure of a circular truncated cone, and a filter screen is arranged at the opening of the top of the water spraying chamber top cover.

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