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Anti-freezing exhaust valve

An exhaust valve, suction and exhaust technology, applied in valve details, safety valves, balance valves, etc., can solve the problems of unfavorable facility insulation, increase the height of exhaust facilities, etc., and achieve easy maintenance, comprehensive functions, and reduce heat loss. Effect

Pending Publication Date: 2020-02-14
SHANGHAI KARON VALVES MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in order to ensure the maintenance of the valve, it is necessary to install an isolation valve in front of the valve, which increases the height of the exhaust facility and is not conducive to the insulation of the facility

Method used

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Experimental program
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Effect test

Embodiment

[0032] Such as figure 1 As shown, the present invention provides an antifreeze exhaust valve, which mainly consists of the following components:

[0033] Valve body 1, float 2, valve cover 3, suction and exhaust valve 4, valve seat sealing ring 5, valve shaft 6, isolation / buffer plate 7, small hole seat 8, lock nut 9, air cover plate 10, heat preservation cover 11 , sealing ring 12, fastener 13, drive nut assembly 14, filter screen 15 and housing 16.

[0034] The buoy 2 is a fully enclosed annular cylinder structure with both ends closed. The annular inner hole of the cylinder body allows the valve shaft 6 to pass through. When the buoy 2 is submerged in water, its buoyancy is greater than gravity, and the difference between buoyancy and gravity is greater than that of the suction and exhaust valves. The weight of 4 pushes the suction and exhaust valve 4 to move upward, and realizes sealing with the valve seat sealing ring 5.

[0035] The suction and exhaust valve 4 is a rin...

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Abstract

The invention relates to an anti-freezing exhaust valve. The anti-freezing exhaust valve is fixedly arranged on a water conveying pipeline through a cylindrical housing and comprises a cylindrical valve body, a circular-ring-shaped valve cover and a valve shaft, wherein the cylindrical valve body is inserted into the housing and is fixedly connected with the housing; the circular-ring-shaped valvecover is fixed to the upper end face of the valve body and is provided with a central through hole; the valve shaft penetrates through the upper end face and the lower end face of the valve body; thetop end of the valve shaft is rotated; and a locking nut is fixed to the bottom end of the valve shaft. The anti-freezing exhaust valve further comprises an upper sealing exhaust mechanism arranged on the upper end face, a lower sealing exhaust mechanism arranged on the lower end face and a nut driving mechanism fixed to the inner wall of the lower part of the valve body. Compared with the priorart, the anti-freezing exhaust valve has the advantages of being isolated, convenient to maintain, comprehensive in function, capable of reducing heat loss, capable of preventing freezing and sundriesand the like.

Description

technical field [0001] The invention relates to the field of fluid machinery, in particular to an antifreeze exhaust valve. Background technique [0002] The exhaust valve is a commonly used device in the water and fluid transportation industry. It is used to discharge the air in the pipeline when it is under positive pressure. When there is negative pressure in the pipeline, it can also suck in air to prevent the pipeline from being damaged. to a very important role. [0003] At present, most of the exhaust valves commonly used in the market cannot adapt to the cold climate in the north. It is easy to freeze and damage the interior when used in winter, making the valve lose its original function. Therefore, special insulation measures are required. In addition, in order to ensure the maintenance of the valve, it is necessary to install an isolation valve in front of the valve, which increases the height of the exhaust facility and is not conducive to the insulation of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/02F16K31/18F16K24/04F16L59/16B01D35/04
CPCB01D35/04F16K17/02F16K24/042F16K31/18F16L59/161
Inventor 徐勇李政宏
Owner SHANGHAI KARON VALVES MACHINERY
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