CN2450453Y

CN2450453Y - Vertical automatic exhaust valve

Info

Publication number: CN2450453Y
Application number: CN 00259636
Authority: CN
Inventors: 崔传杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-08
Filing date: 2000-11-08
Publication date: 2001-09-26
Anticipated expiration: 2010-11-08

Abstract

The utility model relates to a novel vertical automatic exhaust valve. A valve body 1 and a valve cover 9 are connected by threads; a float is arranged on a guide bar 3; a guide sleeve 7 is arranged in the valve cover 9, a primary sealing pad 8 which is arranged at the upper end of the guide sleeve 7 is provided with a through hole at the center and the lower end surface of the through hole is a surface. An antirust lining 10 is arranged in a through hole at the top end of the valve cover 9, and an exhaust sealing cap is arranged at the top end of the valve cover 9. The utility model has the advantages of smooth exhaust, good sealing performance, long service life and flexible opening and closing.

Description

The novel vertical automatic control pressure vent

The utility model relates to a kind of novel vertical automatic control pressure vent, and this outlet valve is applicable to hot water system, comprises the automatic eliminating of pneumatosis in the heat exchanger.

Existing various automatic control pressure vent products, structure is different, all has the chief that deficiency is also respectively arranged.For example: non-ferrous metal shell small and exquisite attractive in appearance, but exhaust velocity is slow, and cost is higher; The volume of ferrous metal shell is bigger, and exhaust is very fast, and cost is lower, but very easily corrosion, and exhaust port becomes rusty after death that valve can lose efficacy, and the rib-loop rust after death can't keep in repair; Have can be under 800kpa pressure can proper functioning, and can't ensure in the lower pressure lower seal performance of 50kpa; The valve that has will soon leak after surpassing the pressure of 400kpa; Most of in a word product adaptation faces are narrower, can reach normal working life 2 years then seldom, though some imported product quality is better, price is very expensive, and exhaust velocity is also slower.

The purpose of this utility model is exactly the deficiency at the said goods, provide a kind of and guarantee that exhaust velocity is fast, good seal performance, long service life, cost of production is low, and fault is few, easy-maintaining, adapt to face width, all can normally use down to 1000kpa, on technical performance, can reach the novel vertical automatic control pressure vent of the leading position of like product at normal pressure.

The purpose of this utility model can realize by following measure:

A kind of novel vertical automatic control pressure vent, it comprises valve body 1, valve gap 9, guide rod 3, big sealing gasket 6, float bottom 4, floating body 5 and guide sleeve 7, valve body 1 and valve gap 9 are by being threaded, be provided with big sealing gasket 6 between them, the bottom of valve body 1 is provided with guide rod 2, guide rod 2 is provided with the float that is formed by being threaded by float bottom 4 and floating body 5, the inner chamber top of valve gap 9 is by the guide sleeve 7 that has been threaded, a through hole is set on the top end of valve gap 9, an antirust lining 10 is set in the through hole, the top of guide sleeve 7 is provided with a primary seal pad 8, in the middle of the primary seal pad 8 is through hole, and the lower end surface of through hole is a cambered surface, is that face contacts with the top of floating body 5, the upper end of valve gap 9 is connected with exhaust sealing cap 12 by screw thread, is provided with little sealing gasket 11 between them.

Valve body 1 and valve gap 9 peripheries are provided with muscle.

Float bottom 4 is provided with the hole of three even cloth.

Concrete advantage is as follows:

1, cast iron housing, simple in structure, beautiful shape, cheap.

2, other like product of exhaust port sectional area ratio that antirust lining is housed increases 2-6 doubly, and exhaust is smooth and easy quick.

3, the float cross section is big, and volume is big, and the inner space is big, and material proportion is little, does not absorb water, and is indeformable, and buoyancy is powerful, has created advantage for improving sealability.

4, float on bottom and be provided with water passage hole (three uniform), can make to enter the water that floats on inner chamber and discharge automatically, prevented that some valve from going to lose the disadvantage that buoyancy lost efficacy because of the float connecting part infilters water.

5, float is by guide rod and guide sleeve location, and lifting is flexible, action accurately, and the cone valve at float top has certain free adjustment again when entering in the primary seal pad R type exhaust port, can guarantee that soft seal is stressed evenly to make sealing reliable.

6, the primary seal pad is the key of this valve quality assurance.Primary seal pad among the design is taked high performance fluosilicic acacia gum made, add unique geometrical shape, can effectively avoid not tight with the driving fit of the float conical surface, or because of the frequent movement deformed damaged, or damage because of material aging, or because of the generation of problems such as the adhesion of being failure to actuate for a long time, the new material that the design adopted performance in these areas will be got well last several times and even tens times than General Purpose Rubber even reclaimed rubber material that other valve adopted.

7, this valve upper end is provided with the exhaust sealing cap, and seal rubber pad is housed in the cap, and when proper functioning, this cap is an opening state, in case influenced sealing because of entering the solid floating debris in the valve, as long as this cap is closed, can guarantee watertight.

8, the Floater Structure among the design, because of bottom is provided with water passage hole, air is discharged in valve, and when water level rose, water also can enter float inside, and when hydraulic pressure hanged down, air was compressed not quite in the float, and water inlet is few.Substantially do not intake in the float under the normal pressure, when hydraulic pressure was high, air compression was many in the float, and it is also many to intake, but the float external and internal pressure is balanced all the time, it is impaired that be difficult for floating life, and when hydraulic pressure raise, float compressed air elasticity increased, ensured powerful buoyancy, that is to say that in the scope from the normal pressure to the nominal pressure, this valve has essential sealing intensity all the time, thus this valve can be under various pressure proper functioning all.

Description of drawings is as follows:

Fig. 1 is the structural drawing in the utility model exhaust work;

Fig. 2 is the structural drawing after the utility model exhaust work finishes;

Be described in further detail by embodiment below in conjunction with accompanying drawing:

The novel vertical automatic control pressure vent is made up of the water passage hole 3 on valve body 1, guide rod 2, the float bottom, float bottom 4, floating body 5, big sealing gasket 6, guide sleeve 7, primary seal pad 8, valve gap 9, antirust lining 10, little sealing gasket 11 and exhaust sealing cap 12; Valve body (1) and valve gap (9) are by being threaded, adorn big sealing gasket 6 between them, the float of being made up of float bottom 4 and floating body 5 is contained on the guide rod 2, valve gap is equipped with guide sleeve 7 in (9), lead 7 upper end primary seal pad 8 is housed, in the middle of the primary seal pad 8 is through hole, the lower end of through hole is a cambered surface, with the top of floating body 5 is that face contacts, the primary seal pad has a ring recess on 8 lower end surfaces, establishes a through hole on valve gap 9 top ends, adorns an antirust lining 10 in the through hole, adorn an exhaust sealing cap 12 on valve gap 9 tops, adorn little sealing gasket 11 between them.Be equipped with three water passage holes 3 on the float bottom on the float bottom 4, primary seal pad 8 adopts high performance fluosilicic acacia gum to make.

Working procedure is introduced: please refer to accompanying drawing, accompanying drawing one be the state in the exhaust work, the sealing state of accompanying drawing two after for the exhaust work end.

This valve must vertically be installed on the easy to accumulate gas place of a water heating system pipeline high position.

When having air to exist in the water heating system pipeline, gas is upwards assembled, and arrives high-orderly, and the port hole by valve body lower portion enters in the valve, and at this moment float sinks naturally in the valve, and gas is by the opening discharge of exhaust port by the exhaust sealing cap.Along with the discharge of pneumatosis, the water surface rises gradually, enters in the valve, float is floated, and seal action is played in the conical surface of float upper end and the R shape face driving fit of primary seal pad vent ports, at this moment remaining small part of gas and water are all again outside the expulsion valve in the valve, and exhaust work finishes.

Build up when there being gas to make progress again, when entering valve body, drawdown in the valve, the water in the float is all discharged under the pressurized air effect, and float sinks naturally, exhaust open, exhaust the workman begin once more.

If the float conical surface and primary seal pad (or fixedly the hollow conical surface and unsteady soft sealing face) driving fit is not tight, outlet valve will leak, if these two parts are sticked together, outlet valve just can not exhaust, therefore the valve inner piece opens and closes flexibly, and sealing is reliable, is still the key of this valve performance.

The utility model design realizes the most reliable guarantee of this key just.

Claims

1, a kind of novel vertical automatic control pressure vent, it comprises valve body (1), valve gap (9), guide rod (3), big sealing gasket (6), float bottom (4), floating body (5) and guide sleeve (7), valve body (1) and valve gap (9) are by being threaded, be provided with big sealing gasket (6) between them, the bottom of valve body (1) is provided with guide rod (2), guide rod (2) is provided with the float that is formed by being threaded by float bottom (4) and floating body (5), the inner chamber top of valve gap (9) is by the guide sleeve that has been threaded (7), it is characterized in that on the top end of valve gap (9) through hole being set, an antirust lining (10) is set in the through hole, the top of guide sleeve (7) is provided with a primary seal pad (8), in the middle of the primary seal pad (8) is through hole, the lower end surface of through hole is a cambered surface, with the top of floating body (5) is that face contacts, the upper end of valve gap (9) is connected with exhaust sealing cap (12) by screw thread, is provided with little sealing gasket (11) between them.

2, novel vertical automatic control pressure vent according to claim 1 is characterized in that described valve body (1) and valve gap (9) periphery are provided with muscle.

3, novel vertical automatic control pressure vent according to claim 1 is characterized in that float bottom (4) is provided with the hole of three even cloth.