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Pressure reducing valve

A technology of pressure reducing valve and pressure reducing device, applied in the field of pressure reducing valve, can solve the problems of large space occupied by pressure reducing structure, high cost, many high pressure leakage points, etc. Effect

Active Publication Date: 2018-02-23
BEIJING HUASHI UNITED ENERGY TECH & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For this reason, what the present invention aims to solve is the defect that the decompression structure used in the high-pressure drop decompression system in the prior art occupies a large space, is high in cost, and has many high-pressure leakage points, thereby providing a Pressure reducing valve with small size and low equipment cost

Method used

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Embodiment Construction

[0051] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments. This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims.

[0052] The embodiment of the present invention provides a pressure reducing valve, such as figure 1 and figure 2 shown, the pressure reducing valve consists of,

[0053] The main valve body 3 has a valve cavity formed in the main valve body 3;

[0054] The main valve body 3 is provided with a valve outlet 2 and a valve inlet 1 communicating with the valve cavity;

[0055] Between the valve inlet 1 a...

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Abstract

The invention discloses a pressure reducing valve. The pressure reducing valve comprises a main valve body. A valve cavity is formed inside the main valve body. The main valve body is provided with avalve outlet and a valve inlet, wherein the valve outlet and the valve inlet communicate with the valve cavity. Two or more pressure reducing devices are arranged between the valve inlet and the valveoutlet, wherein the pressure reducing devices are suitable for draining fluid at the valve inlet to the valve outlet after the fluid is depressurized. The pressure reducing valve is small in occupiedspace, low in cost and small in number of high-pressure leakage points; all the pressure reducing devices share the same main valve body, are independent of one another, do not interfere with one another and can be switched flexibly or used at the same time.

Description

technical field [0001] The invention belongs to the technical field of fluid valves, and in particular relates to a pressure reducing valve used in a high pressure drop decompression system, in particular to a pressure reducing valve used for decompressing a hot high fraction to a hot low fraction. Background technique [0002] In the coal tar hydrogenation industry, the existing processes are fixed bed hydrogenation, suspension bed hydrogenation and ebullating bed hydrogenation. The product oil gas enters the low-pressure separator from the high-pressure separator, and realizes the separation of gas, liquid and solid after decompression. [0003] In the above decompression occasions, the differential pressure from the high-pressure separator to the low-pressure separator can reach 5MPa to 100MPa, and the decompression medium after hydrogenation can be liquid, gas-liquid mixture or gas-liquid-solid three-phase mixture, after decompression When the pressure of the liquid at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/22
Inventor 李林王娜李振铎
Owner BEIJING HUASHI UNITED ENERGY TECH & DEV