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Automatic check valve

A check valve, automatic technology, applied in the valve details, control valve, valve device and other directions, can solve the problems of easy aging of the sealing ring, low degree of automation, short service life, etc., to achieve good sealing effect, high degree of automation, use long life effect

Inactive Publication Date: 2015-09-02
DAFENG NANYA VALVE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Check valves are used in pipelines in petroleum, chemical and other industries to cut off liquid in pipelines. Existing check valves are generally opened and closed manually, which is troublesome to operate and low in automation. The medium check effect is poor, and it will easily lead to check failure after a long time, and the service life is short. At the same time, the sealing performance between the valve disc and the valve seat of the check valve is poor. Meet the use requirements

Method used

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Embodiment Construction

[0008] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0009] Such as figure 1 As shown, the automatic check valve includes: a valve body 1 and a valve cover 2, the valve body 1 and the valve cover 2 are connected by bolts 3 and nuts 4, and an inlet channel 5 is arranged in the valve body 1 and the outlet channel 6, a valve seat 7 is provided on one side of the inlet channel 6 inside the valve body 1, a sealing ring 8 is provided on the valve seat 7, and a valve that communicates with the inlet channel 5 is arranged in the valve seat 7 Passage 9, a disc 10 cooperating with the valve seat 7 is provided in the valve body 1, the upper end of the valve disc 10 is connected with a valve stem 11, and the upper end of the valve stem 11 is slidably arranged on the valve cover 2 Inside the chute 12, a spring 13 is arranged in the chute 12, one end of the spring 13 is against the v...

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Abstract

The invention discloses an automatic check valve with high automation degree. The automatic check valve comprises a valve body and a valve cover, wherein the valve body is connected with the valve cover through a bolt and a nut; an inlet channel and an outlet channel are formed in the valve body; a valve seat is arranged on one side of the inlet channel in the valve body; a channel communicated with the inlet channel is formed in the valve seat; the upper end of a valve clack is connected with a valve rod; the upper end of the valve rod is arranged in a sliding chute in the inner side of the valve cover in a sliding manner; a spring is arranged in the sliding chute; the lower end of the valve clack is connected with a movable iron core; a groove matched with the movable iron core is formed in the valve body; a static iron core matched with the movable iron core is arranged at the lower end of the valve body; an induction coil is wound on the static iron core and is connected with a power supply control cabinet; a secondary sealing ring is also arranged on the valve clack on the inner side of a sealing ring.

Description

technical field [0001] The invention relates to a valve, in particular to an automatic check valve. Background technique [0002] Check valves are used in pipelines in petroleum, chemical and other industries to cut off liquid in pipelines. Existing check valves are generally opened and closed manually, which is troublesome to operate and low in automation. The medium check effect is poor, and it will easily lead to check failure after a long time, and the service life is short. At the same time, the sealing performance between the valve disc and the valve seat of the check valve is poor. Meet the use requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an automatic check valve with a high degree of automation. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: an automatic check valve, comprising: a valve body and a valve cove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/18F16K15/06F16K31/06F16K47/02
CPCF16K15/063F16K15/18F16K31/0655F16K47/023F16K47/0111F16K31/084F16K27/0209
Inventor 王亚军
Owner DAFENG NANYA VALVE
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