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A negative pressure automatic defrosting system and method thereof

A negative pressure and automatic defrosting technology, which is applied in defrosting, household refrigeration equipment, lighting and heating equipment, etc., can solve the problems of high energy consumption of periodic automatic defrosting, complicated defrosting system structure, and determination of the starting point of defrosting process Incomplete technology and other problems, to achieve the effect of a reasonable and complete negative pressure automatic defrosting system, improve storage quality, and reduce loss rate

Active Publication Date: 2021-05-28
EBARA DENSAN QINGDAO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing technology, and to design a negative pressure automatic defrosting system

Method used

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  • A negative pressure automatic defrosting system and method thereof
  • A negative pressure automatic defrosting system and method thereof
  • A negative pressure automatic defrosting system and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The negative pressure automatic frosting system involved in this embodiment has a main structure including a controller 1, a compressor 2, an air-supply evaporator 3, a wind pressure sensor 4, a defrosting device 5 and a temperature sensor 6; There is an equipment controller structure. The controller 1 is installed outside the cold storage room. The controller 1 is connected to the compressor 2, the air supply evaporator 3, the wind pressure sensor 4 and the temperature sensor 6 respectively. Inside the shell of the air-type evaporator 3, the air pressure sensor 4 is used to detect the air pressure value in the air-supply evaporator 3; the controller 1 is electrically connected with the defrosting device 5, and the controller 1 is electrically connected with the power supply to defrost The device 5 adopts the existing defrosting equipment, and the operation of the whole system is automatically controlled by the controller 1 .

[0070] The air-supply evaporator 3 involve...

Embodiment 3

[0104] A specific automatic frosting method using the negative pressure automatic frosting system described in Example 1 is:

[0105] (1) Press the start key 27 to start the controller 1, press the set key 18 to enter the parameter setting module 12, enter the four-digit password or the initial password 9999 to log in to the parameter setting interface, set the parameters of the automatic frost mode, and the defrosting cycle Set it to 48 hours, set the defrosting air volume to 70Kpa, set the defrosting time to 30 minutes, set the defrosting stop temperature to 0°C, set the defrosting delay to 1 minute, and set the delay after defrosting to 5 minutes, the evaporator delay is set to 1 minute, the compressor delay is set to 1 minute, the power failure start delay is set to 1 minute, the sensor interruption time is set to 10 seconds, and the frosting amount is set to 30% , the temperature range value is 4°C and the temperature rise value is 2°C, and the set parameters are sent to ...

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Abstract

The invention belongs to the technical field of automatic cold storage defrosting equipment, and relates to a negative pressure automatic defrosting system and a method thereof; the system includes a controller, a compressor, an air supply evaporator, a wind pressure sensor, a defrosting device and a temperature sensor , the air-supply evaporator includes a wind pressure sensor, an evaporator coil, a housing, a fan and a fixing block, the evaporator coil is fixed at the open end of the open housing, and two For the fan, a fixed block is arranged between the two fans, the front end of the fixed block is on the same vertical end face as the front end of the fan, the rear end of the fixed block is fixedly connected to the housing, and the front end of the fixed block is fixedly connected to the wind pressure sensor; The system can intelligently detect the amount of frosting on the evaporator, automatically determine the best defrosting time, and achieve the energy-saving goal of optimizing cold storage resources. At the same time, it determines the termination of the defrosting operation according to the temperature change or the set defrosting time, which improves the quality of the stored goods. , reducing the loss rate.

Description

Technical field: [0001] The invention belongs to the technical field of automatic cold storage defrosting equipment, and relates to a cold storage defrosting system and method that utilizes negative pressure to determine the frosting rate of the cold storage to realize automatic defrosting, in particular to a negative pressure automatic defrosting system and the method. Background technique: [0002] With the rapid development of the field of refrigeration equipment, the automation of cold storage refrigeration systems has become an essential function for today's cold storage production management. Good quality is guaranteed; however, the surface of the evaporator in the cold storage is frosted, which hinders the conduction and distribution of cold energy of the refrigeration evaporator (pipe), and ultimately affects the cooling effect. When the thickness of the frost layer (ice layer) on the surface of the evaporator reaches a certain level, the refrigeration efficiency eve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D21/06F25D29/00
CPCF25D21/008F25D21/06F25D29/008F25D2400/361
Inventor 李彦苗笛王磊刘辉辉仲崇庆孙茂虎袁优张磊
Owner EBARA DENSAN QINGDAO TECH
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