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Motor-driven high-temperature-resistant corrugated pipe stop valve

A bellows globe valve, motor-driven technology, used in lift valves, valve details, valve devices, etc., to achieve the effects of reducing energy loss, long service life, and reliable sealing

Inactive Publication Date: 2009-12-09
SHANGHAI HAIXING VALVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the shut-off valve is forced to seal, when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. The invention provides a motor-driven high-temperature-resistant bellows shut-off valve

Method used

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  • Motor-driven high-temperature-resistant corrugated pipe stop valve

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Embodiment Construction

[0007] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0008] In the figure: 1. Valve body, 2. Overlay welding Co-based hard alloy sealing ring, 3. Titanium-plated austenitic stainless steel bellows device, 4. Valve stem, 5. High temperature resistant gasket, 6. Bolt, 7 .Spring washer, 8. Nut, 9. Jack screw, 10. Jack nut, 11. Valve cover, 12 Motor drive head mandrel sleeve, 13. Motor drive head mandrel, 14. Motor drive head mandrel sleeve cross pin , 15. Motor drive head device, 16. Packing gland, 17. Packing, 18. Lower packing pad, 19. Disc.

[0009] In the example shown in the figure: Co-based hard alloy sealing ring 2 is surfacing on the valve body 1, and Co-based hard alloy is surfacing on the sealing surface, which has good wear resistance, corrosion resistance, good friction resistance, long service life, and titanium plating. The austenitic stainless steel bellows device 3 is mechanically connected ...

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Abstract

The invention provides a motor-driven high-temperature-resistant corrugated pipe stop valve and relates to a motor-driven stop valve. The clamp connection type high-temperature-resistant corrugated pipe stop valve comprises a valve body. A titanizing austenitic stainless steel corrugated pipe device is movably and mechanically connected between the lower part of a valve rod and the upper part of a valve clack, the upper part of the valve rod is arranged in a motor drive head mandrel sleeve and is mechanically connected with the motor drive head mandrel sleeve, a lower head of the valve rod is movably and mechanically connected with the valve clack, the motor drive head mandrel sleeve is arranged in a motor drive head mandrel and is mechanically connected with a motor drive head device, the motor drive head mandrel is rotated to enable a lifting rod of the valve rod to drive the titanizing austenitic stainless steel corrugated pipe device to lift by the motor drive head mandrel sleeve, the motor drive head mandrel sleeve is arranged in an interior hole above a valve cover and is mechanically connected with the interior hole, and the motor drive head mandrel is arranged in the motor drive head mandrel sleeve and is mechanically connected with a traverse pin of the motor drive head mandrel sleeve. The dual firm and durable corrugated pipes have convenient disassembly and reliable sealing, and the motor-driven high-temperature-resistant corrugated pipe stop valve is suitable for pipelines with various working conditions in the petroleum industry, the chemical industry, the electric power industry, and the like.

Description

Technical field: [0001] The invention relates to a stop valve driven by a motor. Background technique: [0002] At present, in the known stop valve, the opening and closing part of the stop valve is a plug-shaped valve disc, the sealing surface is a plane or a conical surface, and the valve disc moves linearly along the center line of the fluid. The movement type of the valve stem includes a lifting rod type and a lifting rotating rod type. The stop valve is only suitable for full opening and full closing, and adjustment and throttling are not allowed. It is a forced sealing valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. When the medium enters the valve from the bottom of the disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to o...

Claims

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Application Information

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IPC IPC(8): F16K41/10F16K1/34F16K1/48F16K1/46F16K27/02F16K41/02F16K31/04
Inventor 季祝华
Owner SHANGHAI HAIXING VALVE FACTORY
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