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Filter bypass overflow valve

A relief valve and bypass valve technology, applied in fluid pressure actuators, fluid pressure actuation system components, servo motor components, etc., can solve the problem of no overflow valve, single function of relief valve, and drilling hydraulic system High life requirements and other issues, to achieve the effect of ensuring reliability, strong dirt holding capacity and long service life

Active Publication Date: 2013-05-01
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, domestic relief valves have a single function and generally have independent pressure regulating and stabilizing functions. Due to the high cost of oil drilling, this type of product cannot meet the use requirements of the vertical drilling hydraulic system, and the working life of the drilling hydraulic system is relatively high. high
[0006] There are many kinds of relief valves at home and abroad, and the single performance is very high, but there is no relief valve with both the function of relief valve and the function of filtering and bypass safety protection.

Method used

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  • Filter bypass overflow valve
  • Filter bypass overflow valve
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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 The structure of the filter element assembly 3 shown includes a circular left cover 10 and a right cover 11, wherein the centers of the left cover 10 and the right cover 11 are respectively processed into circular bosses 33, and the center of the right cover 11 is processed into a circular mounting In the hole 34, the sealing ring 8 is embedded on the hole wall, and a circular groove is processed inward at the position of the circular boss 33 of the left cover 10. The cylindrical filter frame 14 is fitted between the left cover 10 and the right cover 11 through the circular boss 33 . At the same time, the filter core frame 14 is covered with a filter screen 12 and a backing screen 13 .

[0025] Such as figure 2 In the structure of the bypass valve 2 shown, the valve rod 17 of the bypass valve is installed i...

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Abstract

The invention belongs to the field of perpendicular drilling hydraulic systems for oil drilling, and particularly discloses a filter bypass overflow valve, which comprises a valve body. An overflow valve and a bypass valve are arranged in the valve body. The valve body is fixedly connected with a shell in a sealed way. A filter element component is arranged in the shell, so that a separation channel is formed between the shell and the filter element component. The filter element component is designed at an inlet of the overflow valve to filter oil entering the overflow valve, so that the cleanness of the oil is ensured; in addition, the bypass valve is designed, so that the oil can enter the overflow valve through the bypass valve, and finally flows out when the filter element component is jammed and the oil cannot be discharged in case of serious oil pollution; and furthermore, a filter gauze manufactured by a stainless steel fiber sintered felt and a stainless steel woven lining mesh are designed in the filter element component, so that the valve is high in pollutant-assimilative capacity and long in service life, and the reliability of equipment is ensured.

Description

technical field [0001] The invention belongs to the field of oil drilling vertical drilling hydraulic systems, and in particular relates to an overflow valve. Background technique [0002] At present, the technical development of foreign countries in the field of vertical drilling hydraulic systems for oil drilling is as follows: [0003] After nearly a hundred years of development, foreign hydraulic companies have developed mature overflow valve technology. The products manufactured according to this technology have superior performance and are widely used. However, in order to improve the reliability of the vertical drilling hydraulic system, the general relief valve product can stabilize the hydraulic system pressure, but for the oil drilling hydraulic system with serious oil pollution, it cannot adapt to the reliable vertical drilling hydraulic system. work needs. [0004] The technical development of relief valves in China is as follows: [0005] At present, domestic...

Claims

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Application Information

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IPC IPC(8): F15B13/02F15B21/04
Inventor 曹建玲朱熠韩志富李冀鹏
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS