An automatic backwashing device and method for a refrigeration unit using circulating ammonia waste heat
A technology for refrigerating units and circulating ammonia water, which is applied in the direction of refrigerators, refrigeration and liquefaction, cleaning methods and appliances, etc. It can solve problems such as hindering the flow of ammonia water, reducing the cooling efficiency of refrigerating units, and the cooling capacity cannot meet actual needs, etc., to ensure industrialization Demand, the effect of ensuring efficiency
Active Publication Date: 2021-02-26
HUAYANG COMM TECH CO LTD
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Problems solved by technology
[0003] However, the temperature of high-temperature circulating ammonia water will be cooled during the refrigeration process. At this time, compounds such as tar will still be precipitated, which will accumulate in the pipeline of the circulating ammonia water waste heat utilization refrigeration unit. The cooling efficiency drops, and the cooling capacity cannot meet the actual needs. Therefore, it is necessary to decontaminate the refrigeration unit according to the pipeline blockage.
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[0013] The present invention will be further described below in conjunction with accompanying drawing.
[0014] Such as figure 1 As shown, an automatic backwashing device for a refrigerating unit using circulating ammonia waste heat, including valve V1, valve V2, valve V3, valve V4, valve V5 and differential pressure gauge; the outlet of the ammonia water main road is connected to the refrigerating unit through the pipeline through the valve V1 The inlet of the refrigerating unit, the outlet of the refrigerating unit is connected to the three pipelines, the one pipeline is connected to the valve V1 through the valve V3 to realize the ammonia water circulation of the refrigerating unit, the second pipeline is connected to the inlet of the refrigerating unit through the differential pressure gauge, and the three pipelines pass through the valve in turn V4 and valve V2 are connected to the ammonia water bypass outlet; the water inlet of the refrigeration unit is connected to the ...
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The invention discloses an automatic backwashing device and method of a refrigerating unit for utilizing waste heat of circulating ammonia water, and relates to the technical field of automatic backwashing of a refrigerating unit. The present invention is realized by valve V1, valve V2, valve V3, valve V4, valve V5, differential pressure gauge, waste discharge pool and pipelines. The function of valve V1 is to control the flow of ammonia water into the refrigeration unit; valve V2 realizes bypass flow of ammonia water. Valve V3 realizes the normal flow of ammonia water out of the refrigeration unit, valve V4 realizes the reverse flow of bypass ammonia water into the refrigeration unit, and valve V5 realizes the reverse flushing of ammonia water containing a large amount of tar into the waste discharge pool; the differential pressure gauge 1 realizes the monitoring of the inlet and outlet of the refrigeration unit The differential pressure is monitored, and the waste discharge tank is used to accommodate the waste ammonia water produced after backwashing. Advantages: The refrigeration unit can automatically clean the interior of the refrigeration unit after the excessive accumulation of tar and other compounds precipitated by the further cooling of ammonia water, resulting in a decrease in refrigeration efficiency, and ensures the efficiency of the refrigeration unit in utilizing the waste heat of circulating ammonia water.
Description
technical field [0001] The invention relates to the technical field of automatic backwashing of refrigerating units, in particular to an automatic backwashing device and method for refrigerating units utilizing the residual heat of circulating ammonia water. Background technique [0002] Coal coking is a process in which coking coal is heated to 950-1050°C under air-isolated conditions, and then undergoes high-temperature dry distillation to produce coke, coke oven gas and coking chemical products. Among them, the temperature of the coke oven gas when it escapes from the carbonization chamber through the riser is about 700 ° C. At this time, the gas contains tar gas, benzene group hydrocarbons, water vapor, ammonia, hydrogen sulfide, hydrogen cyanide, naphthalene and other compounds. Recover and process these compounds, spray a large amount of circulating ammonia water in the bridge pipe and gas collecting pipe, when the fine mist of ammonia water is in full contact with the...
Claims
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IPC IPC(8): F25B15/04B08B9/032
CPCB08B9/0321F25B15/04
Inventor 贺广强张永福赵金升袁广振
Owner HUAYANG COMM TECH CO LTD