CN209012520U - A kind of balanced high pressure air inlet and exhaust valve - Google Patents

Abstract

The utility model discloses a kind of balanced high pressure air inlet and exhaust valve, valve deck and the valve inner floating drum moving up and down including valve body and portion disposed thereon；The valve inner is equipped with inner cavity and intake antrum；The floating drum is located at valve inner；Top guide bar is connected at the top of the floating drum；The floating drum bottom is connected with lower guide rod, and lower guide rod passes through eliminator plate and protrudes into intake antrum；The valve deck is connected with valve body by bolt seal；The valve deck is equipped with air inlet/outlet, is equipped with sealing ring at air inlet/outlet, it is characterised in that: be bolted upper cover above the valve deck；Epicoele is equipped with inside the upper cover；The top guide bar protrudes into inside epicoele, and top guide bar one end is connected with Balance Iron by wirerope；The wirerope is oriented to after being pierced by the top of epicoele by directive wheel；The self weight of the Balance Iron applies a upward pulling force to top guide bar by wirerope.Air inlet and exhaust valve structure described in the utility model is simple, very good solution floating drum overweight the problem of can not floating.

Description

A kind of balanced high pressure air inlet and exhaust valve

Technical field

The utility model relates to air inlet and exhaust valve field more particularly to a kind of balanced high pressure air inlet and exhaust valves.

Background technique

Intake and exhaust are a kind of are often used on water supply pipe in time to the valve of pipeline supplement air and purging line air Door.Its working principle is: causing floating drum (or floating ball) to go up and down automatic open close valve by SEA LEVEL VARIATION in valve.The valve It is typically mounted at the high point of pipeline, when pipeline is cut off the water, floating drum falls valve opening air and timely enters pipeline, avoids pipeline There is vacuum and damages pipeline；The air in timely purging line and valve when water-filling in pipeline；Water in pipeline is ensured that in this way Smoothness is logical.Floating drum is the core component of valve.It is floating that the problem that air inlet and exhaust valve encounters is designed in the high-pressure water pipes such as water generating The contradiction of cylinder intensity and buoyancy.If the thin intensity of floating drum wall is inadequate, it is easy by medium squeeze deformation failure；If instead floating ball Its quality of wall thickness is very heavy and buoyancy is inadequate, therefore limits the high pressure use scope of air inlet and exhaust valve.

The solution that the prior art improves is the setting spring at floating drum, support force is provided to floating drum, in proof strength While, floating drum can also normally float, but spring force is unstable, and spring steel wire is easy fatigue damage and fails, it is possible to Cause valve that can not close, spring force size inconvenience is according to actual user's field condition flexible modulation.

Utility model content

It is simple that a kind of structure is provided the purpose of the utility model is to overcome above-mentioned shortcoming in the prior art, it can According to user's actual conditions flexible modulation balance weight weight, reaches valve and do not close in advance；The safety of energy tonifying Qi in time when cutting off the water High pressure air inlet and exhaust valve.

The utility model is realized in the following way:

A kind of balanced high pressure air inlet and exhaust valve, valve deck and valve inner including valve body and portion disposed thereon can on move down Dynamic floating drum；The valve inner is equipped with inner cavity and intake antrum；The floating drum is located at valve inner；It is connected at the top of the floating drum Top guide bar；The floating drum bottom is connected with lower guide rod, and lower guide rod passes through eliminator plate and protrudes into intake antrum；The valve deck and valve body pass through Bolt seal connection；The valve deck is equipped with air inlet/outlet, is equipped with sealing ring at air inlet/outlet, it is characterised in that: the valve deck Top has been bolted upper cover；Epicoele is equipped with inside the upper cover；The top guide bar protrudes into inside epicoele；The top guide bar One end is connected with Balance Iron by wirerope；The wirerope is oriented to after being pierced by the top of epicoele by directive wheel；Institute The self weight for stating Balance Iron applies a upward pulling force to top guide bar by wirerope.

Further, the wirerope and top guide bar, Balance Iron pass through rope card connection.

Further, the weight of the Balance Iron can be adjusted arbitrarily.

Further, the directive wheel is fixed inside protection pipe.

Further, described protection pipe one end is fixed on top of chamber, and the other end extends to valve body side；The protection pipe It is interior to be equipped with Balance Iron.

Further, the side wall of the valve body is provided with micro-exhaust valve.

The utility model has the beneficial effects that: the top guide bar of floating drum top connection is connected with Balance Iron by wirerope, Wirerope is supported and is oriented to by directive wheel, has protection pipe to prevent Balance Iron from rocking outside Balance Iron.The weight of Balance Iron can be adjusted Section, when designing high pressure air inlet and exhaust valve, the wall thickness of floating drum is not limited by self weight, selects reasonable balance weight of iron that can make floating drum ratio Weighing can float to reasonable numerical value automatically in water, and will not deform because of high pressure.Passed through according to the operating condition that user scene uses Increase and decrease weight mass, floating drum will not be blown afloat by air blast when can accurately reach Valved discharge air closes valve in advance.Configuration To the upward pulling force that floating drum provides be after reasonable Balance Iron weight it is constant, overcome that spring force is unstable or spring failure is led The shortcomings that causing valve that cannot close.

Detailed description of the invention

Fig. 1 the utility model structure sectional view.

Specific embodiment

Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model is made further specifically It is bright.It should be appreciated that the embodiments of the present invention is not limited by the following examples, the utility model is done any Formal accommodation and/or change falls within scope of protection of the utility model.

Embodiment:

As shown in Figure 1, a kind of embodiment of the utility model.A kind of balanced high pressure air inlet and exhaust valve, including valve body 5 and be located at The 5 inside floating drum 4 moving up and down of valve deck 14 and valve body of upper part；Inner cavity 15 and intake antrum are equipped with inside the valve body 5 1；The floating drum 4 is located inside valve body 5；Top guide bar 8 is connected at the top of the floating drum 4；4 bottom of floating drum is connected with lower guide rod 3, lower guide rod 3 passes through eliminator plate 2 and protrudes into intake antrum 1；The valve deck 14 is connected with valve body 5 by bolt seal；The valve deck 14 It is equipped with air inlet/outlet, is equipped with sealing ring 7 at air inlet/outlet, it is characterised in that: be bolted above the valve deck 14 Upper cover 9；Epicoele 91 is equipped with inside the upper cover 9；The top guide bar 8 protrudes into inside epicoele 91；Described 8 one end of top guide bar passes through steel Cord 10 is connected with Balance Iron 12；The wirerope 10 is oriented to after being pierced by from the top of epicoele 91 by directive wheel 11；Institute The self weight for stating Balance Iron 12 applies a upward pulling force to top guide bar 8 by wirerope 10.

Further, the wirerope 10 passes through rope card connection with top guide bar 8, Balance Iron 12；

Further, the weight of the Balance Iron 12 can be adjusted arbitrarily.

Further, the directive wheel is fixed inside protection pipe.

Further, described 13 one end of protection pipe is fixed on 91 top of epicoele, and the other end extends to 5 side of valve body；It is described Balance Iron 12 is equipped in protection pipe 13.

Further, the side wall of the valve body 5 is provided with micro-exhaust valve 6.

The top guide bar 8 is welded on floating drum with lower guide rod 3, and the micro-exhaust valve 6 of 5 side wall of valve body setting is conventional sets Meter, is not described in detail herein.

When pipeline water delivery initial stage, floating drum is in falling state, and matching suitable Balance Iron weight can guarantee that floating drum 4 will not It is blown afloat in advance by air blast, air in pipeline can be emptied in time.When bulk gas enters valve body 5, air first passes through eliminator plate 2 enter inner cavity 15, then by atmosphere is discharged at sealing ring 7；When a large amount of water gush next after valve exhaust, eliminator plate 2 is kept off The impact force for having lived water also protects the safety of floating drum 4 while eliminating most of destructive energy；As water level is in valve body 5 It inside rises rapidly, floating drum 4, which will quickly float, closes rapidly valve.Due to there is Balance Iron to offset a part of floating drum self weight, floating drum 4 is pressed No longer worry not floating according to intensity requirement design wall thickness, reasonably solves the lance of high pressure air inlet and exhaust valve floating drum intensity and self weight Shield, Balance Iron 12 are in outside valve, are conveniently adjusted weight and maintenance, are improved the service life of valve.Protection pipe 13 is protected Balance Iron 12 will not be interfered valve operation by external factor, increase the stability of valve.When cutting off the water, floating drum loses the floating of water Power, since Balance Iron weight is less than floating drum weight, floating drum falls, and quickly gives pipeline tonifying Qi, pipeline is avoided vacuum, protection pipe occur Road safety.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims (6)

1. a kind of balanced high pressure air inlet and exhaust valve, valve deck (14) and valve body (5) including valve body (5) and portion disposed thereon are internal Floating drum (4) moving up and down；Inner cavity (15) and intake antrum (1) are equipped with inside the valve body (5)；The floating drum (4) is located at valve Body (5) is internal；Top guide bar (8) are connected at the top of the floating drum (4)；Floating drum (4) bottom is connected with lower guide rod (3), under lead Bar (3) passes through eliminator plate (2) and protrudes into intake antrum (1)；The valve deck (14) is connected with valve body (5) by bolt seal；The valve It covers (14) and is equipped with air inlet/outlet, be equipped with sealing ring (7) at air inlet/outlet, it is characterised in that: pass through above the valve deck (14) Bolt is fixed with upper cover (9)；Epicoele (91) are equipped with inside the upper cover (9)；It is internal that the top guide bar (8) protrudes into epicoele (91)； Described top guide bar (8) one end is connected with Balance Iron (12) by wirerope (10)；Top of the wirerope (10) from epicoele (91) Portion is oriented to after being pierced by by directive wheel (11)；The self weight of the Balance Iron (12) gives top guide bar (8) by wirerope (10) Apply a upward pulling force.

2. a kind of balanced high pressure air inlet and exhaust valve according to claim 1, it is characterised in that: the wirerope (10) with it is upper Guide rod (8), Balance Iron (12) pass through rope card connection.

3. a kind of balanced high pressure air inlet and exhaust valve according to claim 1, it is characterised in that: the weight of the Balance Iron (12) Amount can be adjusted arbitrarily.

4. a kind of balanced high pressure air inlet and exhaust valve according to claim 1, it is characterised in that: the directive wheel (11) is fixed Setting is internal in protection pipe (13).

5. a kind of balanced high pressure air inlet and exhaust valve according to claim 4, it is characterised in that: described protection pipe (13) one end It is fixed at the top of epicoele (91), the other end extends to valve body (5) side；Balance Iron (12) are equipped in the protection pipe (13).

6. a kind of balanced high pressure air inlet and exhaust valve according to claim 1, it is characterised in that: the side wall of the valve body (5) It is provided with micro-exhaust valve (6).