Temperature and pressure reduction device

Abstract

The invention discloses a temperature and pressure reduction device. The temperature and pressure reduction device comprises a pressure reduction valve with one end connected with a steam inlet end, wherein the other end of the pressure reduction valve is connected with a steam mixing pipeline provided with a steam outlet end, a temperature reduction system and a safety protection system are sequentially arranged on the steam mixing pipeline, and an adjustment valve used for adjusting temperature reduction water is arranged in a temperature reduction branch where the temperature reduction system is located; and the temperature reduction system comprises a temperature reduction nozzle assembly, the temperature reduction nozzle assembly comprises a nozzle main body, a pressure accumulation cavity and a medium flow channel communicating with the pressure accumulation cavity are formed in the nozzle main body, a movable nozzle core matched with the pressure accumulation cavity is arrangedin the pressure accumulation cavity to form an airtight cavity body, the nozzle main body is elastically connected with the movable nozzle core and opened when the pressure of the pressure accumulation cavity is greater than elasticity, the movable nozzle core forms a conical surface in the pressure accumulation cavity, a preset angle is formed between the medium flow channel and the axis of the movable nozzle core, and a preset chamfer angle is formed between the medium flow channel and the conical surface, so that water flow is ejected onto the conical surface and rotationally ejected out. Due to the arrangement, the use performance and the adjustment performance of the device are improved.

Description

technical field [0001] The invention relates to the field of valves, more specifically, to a temperature and pressure reduction device. Background technique [0002] The output steam evaporated by the boiler is generally above the parameters of high temperature and high pressure. In the equipment where steam is used as the power source, specific steam pressure and temperature are often required. Temperature and decompression. Traditional desuperheating and decompression devices have problems such as small adjustable range of flow rate, poor quality of steam after desuperheating, low control precision, and large noise and vibration. [0003] To sum up, how to effectively solve the problems of poor desuperheating steam quality and small adjustable range of traditional desuperheating and decompression devices is an urgent problem for those skilled in the art. Contents of the invention [0004] In view of this, the purpose of the present invention is to provide a temperature...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a temperature and pressure reduction device to solve the problems of poor quality of desuperheating steam and small adjustable range of traditional temperature and pressure reduction devices.

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