CN2078399U - Automatic exhuast valve - Google Patents

Abstract

The utility model provides an automatic air exhaust valve. The automatic air exhaust valve is suitable for the circulating line system which has definite temperature and pressure and takes the liquid as the medium in the mechanical equipment or the device which automatically exhausts the stored or accumulated air in a sealed container. The utility model is composed of a valve cap 1, a sealing cushion 2, an air exhaust hole cushion 3, a floating ball 4, a retainer ring 5, a copper net 6 and a valve body 7. When the interior of the system or the container is filled with liquid, the floating ball 4 is pushed up, and the through hole of the air exhaust hole cushion 3 is sealed. When the interior of the system or the container is accumulated with air, the floating ball 4 has no liquid support and falls down as the self weight, and the air automatically exhausts through the upper part of the floating body 4. The utility model has no need of opening the air exhaust valve or the air exhaust cock by hands, has convenient management and labor saving, and keeps the safety and normal use of the pipe system and the container.

Description

Automatic exhuast valve

The utility model relates to a kind of automatic control pressure vent, is useful in all have uniform temperature, pressure are in the cycle cooling plating drum of medium with liquid or wherein store or accumulate gas device with automatic discharging on the seal container on the various mechanical equipment configurations.

In prior art, when in the liquid circulation pipeline system or the seal container inner product of carrying liquid must earlier gas be guided to the place, high-order bit of this system or this container when having gas, much more general open outlet valve or turn venting plug door so that gas is overflowed with manual mode, make the pipeline circulating resistance reduce the normal circulation that keeps liquid, prevent turbulent flow or produce noise.

The purpose of this utility model provides a kind of automatic control pressure vent, is to be in order to the automatic discharging device of gas wherein with liquid in the cycle cooling plating drum of medium or on the seal container what have uniform temperature and pressure.

A kind of automatic control pressure vent of the utility model, it is made of valve gap, sealing gasket, valve body, back-up ring and copper mesh, it is characterized in that the bottom surface of valve gap ［ 1 ］ is provided with the annular ditch groove in swallow-tail form cross section, have exhaust port pad ［ 3 ］ the hemisphere concave surface, that the center has connects exhaust port with valve gap ［ 1 ］ and be fixed in the annular ditch groove of valve gap ［ 1 ］, and tighten the ball float ［ 4 ］ that outer spherical surface and exhaust port pad ［ 3 ］ hemisphere concave surface corresponding matching are housed in the valve body ［ 7 ］ of sealing by valve gap ［ 1 ］, sealing gasket ［ 2 ］ with protruding circle.Valve body ［ 7 ］ lower end inlet is equipped with the fixing copper mesh ［ 6 ］ of back-up ring ［ 5 ］.

The utility model compared with prior art, in can the manually opened fluid pipeline circulatory system or outlet valve or venting plug door on the seal container of carrying liquid, and when their storages or accumulation exhausting air automatically during gas, save manpower, convenient management, guarantee the safe and reliable of piping and container and use.

Accompanying drawing: the total ssembly drawing of automatic control pressure vent

Part name in the figure:

1. valve gap 2. sealing gaskets 3. exhaust port pads 4. ball floats 5. back-up rings 6. copper mesh 7. valve bodies

An accompanying drawings specific embodiment of the present utility model: accompanying drawing is depicted as the automatic control pressure vent that is used for hot water system, valve gap ［ 1 ］ and valve body ［ 7 ］ with the common grey iron manufacturing, with 1 1/4 " the pipe round thread connects; on have and make under outside diameter φ 27, the interior circle annular ditch groove of the swallow-tail form of diameter phi 16 dark 8mm on diameter phi 18, the interior circle on the bottom surface of circular valve gap ［ 1 ］ of six square toes, the center also is drilled with φ 4 through holes.And valve body ［ 7 ］ the lower inlet end place that the external diameter φ 38mm of six square toes is arranged down is provided with the groove of diameter phi 20.5 wide 1.5mm, and interior dress is with the fixing copper mesh made from per inch 25 order copper mesh ［ 6 ］ of 19mm circlip for hole ［ 5 ］.The sealing gasket ［ 2 ］ of sealing usefulness has exhaust port pads ［ 3 ］ R13.5mm hemisphere concave surface and φ 5 through holes all with the rubber manufacturing that can bear uniform temperature.The hollow float ［ 4 ］ of external diameter φ 25 thick 2mm is with the duroplasts manufacturing.The automatic control pressure vent finished of assembling need be cleared up and test, all threaded connection places and ball float ［ 4 ］ all must not leak with exhaust port pad ［ 3 ］ sphere junction point.Should make outlet valve be placed on the extreme higher position of whole tubing during installation and must keep plumbness substantially.Full of liquid in the cycle cooling plating drum when user mode, buoyancy aid ［ 4 ］ is closed tight by jack-up, the sealing of exhaust port pad ［ 3 ］ through hole.And when accumulation in the system has gas, gas rises to the outlet valve inside of high-order bit, ball float ［ 4 ］ no liquid rest is owing to own wt falls, and gas is promptly by discharging automatically above the ball float ［ 4 ］, till the gas emptying refills liquid and closes exhaust port pad ［ 3 ］.The utility model also can be used for return elbow in other liquid circulation pipeline systems or seal container and all and is easy to the automatic vent at trapped gas place, have acidity for being used in, alkalescence and when the liquid medium of higher temperature, pressure is arranged its sealing gasket ［ 2 ］, exhaust port pad ［ 3 ］ and ball float ［ 4 ］ must adopt the corresponding material of acidproof, alkaline-resisting and high temperature high voltage resistant, other parts also must carry out the processing of acid-proof, alkali and adopt quality material.

Claims (2)

1, a kind of automatic control pressure vent, it is by valve gap, sealing gasket, valve body, back-up ring and copper mesh constitute, it is characterized in that the bottom surface of valve gap [1] is provided with the annular ditch groove in swallow-tail form cross section, have exhaust port pad [3] the hemisphere concave surface, that the center has connects exhaust port with valve gap [1] and be fixed in the annular ditch groove of valve gap [1], and tighten the ball float [4] that outer spherical surface and exhaust port pad [3] hemisphere concave surface corresponding matching are housed in the valve body [7] of sealing by valve gap [1], sealing gasket [2] with protruding circle.

2, outlet valve according to claim 1 is characterized in that described valve body ［ 7 ］ lower end inlet is equipped with the fixing copper mesh ［ 6 ］ of back-up ring ［ 5 ］.