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Temperature and pressure reducing valve

A technology for reducing temperature and pressure, and reducing temperature of water, which is applied in the field of temperature and pressure reducing valves, and can solve problems such as large energy consumption, slow balance process, and more work.

Inactive Publication Date: 2015-03-25
HANGZHOU WORLDWISE VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the opening process of the valve, since there is a large pressure difference between the two ends of the main valve disc, and this pressure difference can only be balanced through the vent hole on the main valve disc, this balancing process is very slow and requires an external force on the main valve The action on the flap lasts for a long time, so this opening operation requires more work, which brings about the problems of high energy consumption and high cost

Method used

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  • Temperature and pressure reducing valve

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] A temperature and pressure reducing valve provided in the embodiment of the present application such as figure 1 as shown, figure 1 It is a schematic diagram of a temperature and pressure reduction valve provided in the embodiment of the present application. The temperature and pressure reducing valve includes:

[0024] A valve body 4, the valve body 4 is provided with a steam channel;

[0025] The main disc 5 and the mixing pipe 1 connected to the v...

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Abstract

The invention discloses a temperature and pressure reducing valve which comprises a valve body, a main valve flap, a mixing pipeline, an auxiliary valve flap, an auxiliary valve flap seat and a jetting part. A steam passage is arranged in the valve body. The main valve flap and the mixing pipeline are connected to the valve body. The auxiliary valve flap and the auxiliary valve flap seat are connected to the main valve flap. The jetting part is connected with the mixing pipeline. The main valve flap is provided with air holes. The number of the air holes located in the steam passage can be changed during moving of the main valve flap. The area of the steam passage between the auxiliary valve flap and the auxiliary valve flap seat can be changed during moving of the auxiliary valve flap. The mixing pipeline is used for mixing steam and temperature reducing water. The jetting part is used for jetting the steam and the temperature reducing water. The temperature and pressure reducing valve has the advantages that the energy consumption of valve opening can be reduced, and the cost of valve opening can be reduced.

Description

technical field [0001] The invention relates to the technical field of steam turbines, in particular to a temperature and pressure reduction valve. Background technique [0002] When the unit of the thermal power plant starts and stops with slip parameters, the bypass system of the steam turbine can be used to adjust the steam parameters of the unit without stopping the boiler. Among them, one of the core components of the bypass system is the temperature and pressure reduction valve, which realizes both decompression and temperature reduction of steam in the same device, and improves work efficiency. However, the temperature and pressure reducing valve in the prior art has only one main disc, and the decompression of steam is realized through the vent hole of the main disc. During the opening process of the valve, since there is a large pressure difference at both ends of the main valve disc, and this pressure difference can only be balanced through the vent hole on the ma...

Claims

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Application Information

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IPC IPC(8): F16K17/20
CPCF16K17/20
Inventor 王晖陈立龙刘儒亚王建华喻筠
Owner HANGZHOU WORLDWISE VALVE
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