Instrument root valve
An instrument and root technology, applied in the field of instrument root valves, can solve problems such as inability to judge whether the production process is normal, complex valve connections, inconvenient maintenance, etc., and achieve the effects of safe use, improved detection efficiency, and easy operation
Inactive Publication Date: 2015-05-20
安策阀门(太仓)有限公司
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Problems solved by technology
This structure has the following disadvantages: 1) The valve connection is complicated, there are many leakage points, there are leakage points between the root valve and the flange, the flange and the steel pipe thread connection, and the connection between the steel pipe and the pressure gauge; 2) No Pressure relief port, close the root valve when the pressure gauge needs to be replaced or repaired. At this time, the medium pressure in the space between the root valve and the pressure gauge is under pressure. Damage; 3) It is inconvenient to overhaul. The pressure gauge is the eyes in the process of production. Without a pressure gauge, it is impossible to judge whether the production process is normal. Therefore, the pressure gauge needs to be checked or replaced regularly; 4) The pressure is sharp when the valve body is opened. Rising, forming a strong impact on the instrument
Method used
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[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0035] Such as Figure 1-9 As shown, the instrument root valve of the present invention includes a valve body 100, an instrument seat 110, a cock member 200, a sealing bush 800, a valve cover 400, a sealing gasket 600 and an operating rotating part 700, wherein: the valve body 100 includes The base 160 of the pipeline connection, the pipeline that allows gas to flow from the process pipeline to the instrument Y, and the chamber 120 located in the middle of the pipeline for matching with the cock part 200; the cock part 200 includes a part 210 for controlling gas on-off and a The part 220 of the ro...
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The invention discloses an instrument root valve. The instrument root valve comprises a valve body, an instrument seat, a cork part, a seal cartridge, a bonnet, a sealing gasket and an operational rotation part. The valve body comprises a base, a pipeline and a chamber, the cork part comprises a part controlling connection and disconnection of medium, and a part used for operating and rotating a cork, the instrument seat is arranged at the upper end of the valve body, the seal cartridge is arranged between the cork part and the valve body, the bonnet is mounted on the outer side of the part controlling connection and disconnection of the medium of the cork part, and the sealing gasket is mounted between the bonnet and the cork part. The operational rotation part is mounted on the rotation part of the cork part and is provided with a limiter. The cork and the valve body are elastically sealed by the seal cartridge, so that VI-level sealing can be achieved. By adopting a welding or integrated forming method in the structure, leak points are reduced, and reliability of the valve is improved; with a pressure relief part, the problem of pressure holding of a pressure gage in the process of maintenance or demounting is solved.
Description
technical field [0001] The invention relates to an instrument valve, in particular to an instrument root valve. Background technique [0002] The main function of the instrument root valve is to cut off the pressure between the pipeline and the instrument, so as to facilitate the maintenance, calibration and replacement of the instrument. At present, there are various structural types of root valves on the market, and there is no fixed type. The mainstream approach is to buy conventional valves, mostly needle valves and ball valves. One end of the valve is connected to the process pipeline, and the other end is connected to the flange. The flange is connected to a steel pipe with a thread. The diameter of the steel pipe is generally 1 / 4", and the other end of the steel pipe is threaded to the pressure gauge. This structure has the following disadvantages: 1) The valve connection is complex, with many leakage points. There are leakage points between the root valve and the f...
Claims
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IPC IPC(8): F16K5/04F16K27/10F16K27/04F16K37/00F16K31/60
CPCF16K5/04F16K5/0407F16K27/06F16K27/107F16K31/60F16K37/00
Inventor 吴晨
Owner 安策阀门(太仓)有限公司