Refrigeration house liquid ammonia valve control device

Abstract

The invention discloses a refrigeration house liquid ammonia valve control device which comprises a speed reducer, a motor fixing plate, a direct current motor, a valve rod fixing plate and a valve rod. The speed reducer is fixedly installed in the center of the motor fixing plate, the direct current motor is fixedly installed on the speed reducer, the valve rod fixing plate is connected with the motor fixing plate through a supporting bolt, and therefore a rectangular frame is formed; and locking nuts are rotatably arranged at the two ends of the supporting bolt, a speed reducer output shaft is perpendicular to the motor fixing plate and fixedly installed at one end of a coupler, and the other end of the coupler is connected with the valve rod through a locking bolt. By means of the refrigeration house liquid ammonia valve control device, mechanical control is achieved, safety accidents are avoided, meanwhile, labor is saved, and cost is reduced.

Description

technical field [0001] The invention relates to the technical field of liquid ammonia valves for cold storage, in particular to a control device for liquid ammonia valves for cold storage. Background technique [0002] Cold storage is a warehouse that uses cooling facilities to create suitable humidity and temperature conditions, also known as cold storage, and is a place for processing and storing agricultural and livestock products. It can get rid of the influence of climate, prolong the storage period of agricultural and livestock products, and adjust the market supply. Cold storage is mainly used for constant temperature storage of food, dairy products, meat, aquatic products, poultry, fruits and vegetables, cold drinks, flowers, tea, medicines, and chemical raw materials. Judging from the current situation and development trend of cold storage, garlic constant-temperature liquid ammonia cold storage has developed rapidly, the proportion of low-temperature storage has i...

AI Technical Summary

Problems solved by technology

If the steel cylinder cannot withstand the pressure of the gas and explodes, it will cause leakage of liquid ammonia. If the pipelines and valves in the refrigeration system are not tight, or the operator violates the operating procedures, the leakage of liquid ammonia will cause poisoning, fire and explosion accidents.

[0003] The liquid ammonia equipment in the cold storage works intermittently, so the liquid ammonia valve needs to be closed when the temperature of the cold storage reaches, and the valve needs to be opened when the temperature of the cold storage rises. At present, the liquid ammonia valve is manually rotated, which is time-consuming and laborious, and the valve is large and needs to be rotated a lot Because of the high friction, it takes a lot of force to turn, so manual closing, there is a problem that the closing is not in place, or a lever needs to be used for the next few turns, and some people even use hammering to close the valve tightly to prevent ammonia leakage , in order to prevent safety accidents and damage to equipment, a cold storage liquid ammonia valve control device is very important

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