CN2396252Y - Automatic valve for pressure container - Google Patents

Abstract

The utility model discloses an automatic valve for a pressure container, which is composed of a shell, a connecting valve, a spring, a sealing ring, a sealing gasket, and a piston. The inner part of the shell is T-shaped. The facade of the shell is provided with a venting hole, and the piston is arranged in the shell. The spring, the sealing ring, and the sealing gasket are sheathed on the piston. When internal pressure and external pressure are not balanced, a channel can be closed or be opend through the upward and downward movement of the piston to achieve the purpose of the equalization of the internal pressure and the external pressure. The utility model has the advantages of artful design, strong applicability, and good effect.

Description

The pressurized container self-acting valve

The utility model relates to a kind of safety self-acting valve, particularly a kind of self-acting valve that the pressurized container external and internal pressure is kept in balance at any time.

The Security of pressurized container is a particular importance, the method of existing assurance pressurized container external and internal pressure equilibrium is a lot, but most complex structure, the cost height, and operation is difficult to control, weak effect, particularly can't accurately measure and control for turnover gas (water) amount, the pressurized container pressure inside just can't be measured and accurately control, easily produces explosion, the danger of blast.

Goal of the invention of the present utility model is intended to overcome above-mentioned shortcoming, and a kind of self-acting valve that can keep the equilibrium of pressurized container external and internal pressure automatically is provided.

Goal of the invention of the present utility model be achieved in that the utility model by housing, connect valve, spring, seal ring, seal washer, piston and form, it is characterized in that: housing hollow " T " font, the front has vent, the bottom connects valve by piston and is connected with pressurized container, spring, seal ring, seal washer and piston are positioned at the bottom of housing, spring, seal washer, seal ring are enclosed within the top of piston from top to bottom successively, lower part of piston is with seal ring, and seal ring is " recessed " font.

Connection valve of the present utility model is communicated with pressurized container, and housing top one end is communicated with water inlet (gas) pipe by connecting valve, and the other end is communicated with water outlet (gas) pipe.When pressurized container pressure inside during greater than external pressure, pressure promotes piston and moves up, seal being communicated with of pressurized container and water inlet (gas) pipe with seal ring, reduce outside continue water inlet or air inlet, and by vent draining or exhaust: when pressurized container pressure inside during less than external pressure, under the effect of spring, piston falls after rise, move down, pressurized container is communicated with water inlet (gas) pipe.

The utility model seal ring and seal washer guarantee that water or the gas in the pressurized container does not reflux.

The utility model design is ingenious, simple in structure, has guaranteed that the pressure in the pressurized container is no more than predetermined pressure, can be in critical field the pressure control in the pressurized container, and pressurized container is unlikely blast.

Provide accompanying drawing of the present utility model below.

Fig. 1 just logical plane structure schematic representation of the present utility model.

Fig. 2 the utility model is faced cross-sectional view.

Fig. 3 the utility model piston face the plane structure schematic representation.

Below in conjunction with drawings and Examples, the utility model is described in further detail.

The utility model is made up of housing 1, connection valve 2, spring 3, seal ring 4, seal washer 5, piston 6, it is characterized in that: housing 1 hollow " T " font, the front has vent 7, the bottom is connected with pressurized container by connecting valve, spring 3, seal ring 4, seal washer 5 and piston 6 are positioned at the bottom of housing 1, spring 3, sealing gesture circle 5, seal ring 4 are enclosed within the top of piston 6 from top to bottom successively, and the bottom of piston 6 is with seal ring 4, and sealed picture 4 is " recessed " font.

Connection valve 2 of the present utility model is communicated with pressurized container, and housing 1 top one end is communicated with water inlet (gas) pipe by connecting valve 2, and the other end is communicated with water outlet (gas) pipe.When pressurized container pressure inside during greater than external pressure, pressure promotes piston 6 and moves up, and seals with seal ring 4, and pressurized container is communicated with water inlet (gas) pipe, reduces outside the continuation and intakes or air inlet, and pass through vent draining or exhaust; When pressurized container pressure inside during less than external pressure, under the effect of spring 3, piston 6 falls after rise, moves down, and pressurized container is managed with water inlet (gas) and is communicated with.

The utility model seal ring 4 and seal washer 5 guarantee that water or gas in the pressurized container do not reflux.

The utility model design is ingenious, simple in structure, has guaranteed that the pressure in the pressurized container is no more than predetermined pressure, can be in critical field the pressure control in the pressurized container, and pressurized container is unlikely blast.

Claims (2)

1, a kind of pressurized container self-acting valve, by housing (1), connect valve (2), spring (3), seal ring (4), seal washer (5), piston (6) is formed, it is characterized in that: housing (1) hollow " T " font, the front has vent (7), both upper ends thereof is connected with water inlet and outlet (gas) pipe by connecting valve (2) respectively, the bottom is connected with pressurized container by connecting valve (2), spring (3), seal washer (5), seal ring (4) is enclosed within the top of piston (6) from top to bottom successively, and all be positioned at the bottom of housing (1), seal ring (4) is arranged at the bottom of piston (6).

2, pressurized container self-acting valve according to claim 1 is characterized in that: seal ring (4) is " recessed " font.

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