CN2332855Y

CN2332855Y - Safety decompression valve of water heater

Info

Publication number: CN2332855Y
Application number: CN 98201375
Authority: CN
Inventors: 李文谦
Original assignee: ZHENJI ELECTRICAL CHEMICAL FACTORY CO Ltd
Current assignee: ZHENJI ELECTRICAL CHEMICAL FACTORY CO Ltd
Priority date: 1998-02-20
Filing date: 1998-02-20
Publication date: 1999-08-11
Anticipated expiration: 2008-02-20

Abstract

The utility model relates to a safety decompression valve for a water heater, comprising a joint, a fixed cap, an adjustable seat, a water inlet valve plug, a plug cap, a decompression valve plug, a spring, etc. The joint is a cross hollow pipe body; a water inlet pipe opening and a delivery pipe opening are mutually vertical; in the pipe body corresponding to the water inlet pipe opening on the other end, the adjustable seat is sheathed on the spring through the fixed cap, the water inlet valve plug is abutted to contain in the pipe body, and a water inlet valve opening is blocked by the water inlet valve plug; the decompression valve plug is matched with the spring and a decompression valve opening of the pipe body opposite to the guide pipe opening on the other end, and the outer end of the pipe body is sealed through the plug cap. The structure can effectively prevent water from outwards flowing during the decompression.

Description

The safety relief valve of water heater

The utility model relates to a kind of safety relief valve of water heater.

Existing gas heater has following shortcoming: one, use and can cause carbon monoxide poisoning accidentally; Two, high buildings and large mansions change the outfit the gas bucket quite inconvenience; Three, the place of hydraulic pressure deficiency can't be used.Gu replaced by the EWH gradually, and general EWH all is provided with safety relief valve based on security consideration, can release of pressure when being beneficial to internal pressure and surpassing, promptly discharge aqueous vapor, yet, general user often can cause the floor humidity for fear of the aqueous vapor that it disengaged, and privately the outlet of its safety valve is stopped up, think and to save many inconvenience, but do not know that this measure is under cover dangerous, in case both vapor pressure postcriticals in the water heater bucket will not have pressure release duct, and then cause gas explosion, very big to the influence of people's livelihood property.

The purpose of this utility model is: a kind of safety relief valve of water heater is provided, makes its safety relief valve that water does not leak outside when release of pressure and release of pressure automatically.

The purpose of this utility model is realized by following technological scheme.

It is mainly by a joint, one locking cap, one adjusts seat, one water inlet valve plug, a cock cap, a pressure release valve plug and two cluster spring are established and are formed, its middle joint is the hollow tube of an approximate cross form, its water inlet pipe mouth is mutually vertically with deriving the mouth of pipe, replaces in a movable water inlet valve plug is placed in and adjust cover for seat knot spring with the locking cap order in holding in addition in the body of relative water inlet pipe mouth, and order water inlet valve plug hinders in intaking valve port; The pressure release valve plug then cooperate spring resistance to be butted on to derive the mouth of pipe in opposite directions hold pressure release valve port in the body in addition, establish with the cock cap envelope body outer end, and this body forms the pressure releasing passages that communicates in water inlet pipe mouth, said structure is mounted on the water inlet tube of water heater road, the cold water of leading into can be pushed into open the water valve plug and sent in the water heater by deriving the mouth of pipe by the water inlet valve port, and when the inner heated pressure of water heater becomes to increasing the need pressure release, hot water refluxes because of the release of pressure effect causes and derives the mouth of pipe in it, bigger pressure can push away and open the pressure release valve plug this moment, make cold water that backflow hot water pressure releasing passages sneaks into water inlet pipe mouth again row import, reach release of pressure and the release of pressure water effect that do not outflow and must recycle automatically.

The utility model compared with prior art has tangible advantage and effect thereof.

1, the water source reusable edible that release of pressure produced, and do not have the puzzlement of outflow.

2, this is the safety valve of one multipotency, has improved the shortcoming that existing safety valve must additionally be established stop valve and check valve and joint discharge opening, and industrial competitiveness improves relatively.

Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Fig. 1 is this novel three-dimensional exploded view

Fig. 2 is this novel combination schematic representation

Fig. 3 is the assembling schematic representation of this novel cooperation water heater and pipeline

Fig. 4 is this novel action schematic representation ()

Fig. 5 is this novel action schematic representation (two)

See also shown in Figure 1ly, the utility model is by joint 1, locking cap 2, adjusts component compositions such as seat 3, water inlet valve plug 4, cock cap 5, pressure release valve plug 6, spring 7 and spring 8 and form.

Joint 1 is the hollow tube of a nearly decussate texture, it is in two vertical bodys respectively is that a water inlet pipe mouth 11 and is derived the mouth of pipe 12, the body of holding in addition of water inlet pipe mouth 11 can be installed with following water inlet valve plug 4 members such as grade in opposite directions, therebetween and form one the water inlet valve port 13, that derives the mouth of pipe 12 in opposite directions holds then ccontaining pressure release valve plug 6 members such as grade of body in addition, have a pressure release valve port 14 therebetween, and this end body forms a pressure releasing passages that communicates 15 with 11 of water inlet pipe mouths.

Locking cap 2 is hollow cylinders of an outside appropriate location moulding screw thread, is arranged with a leak-proof gasket 21 on it.

Adjustment seat 3 is that an end forms a connecting rod 31 that can be placed in the locking cap 2, and it establishes a chase 311 at the place, top, reaches in the end a sheathed leak-proof gasket 32, and the stage casing then is a screw thread cylinder 33, and holds the body of rod to offer a suitable dark duct 34 in other.

Water inlet valve plug 4 is at centre moulding one connecting rod 41, connecting rod 41 sheathed springs 7 and make it place adjusting seat 3 ducts 34.

Cock cap 5 is stepped threaded cylinders, and it is at the sheathed leak-proof gasket 51 of appropriate location, and it offers a duct 52 in inside.

Pressure release valve plug 6 forms a connecting rod 61 in centre, this connecting rod 61 sheathed springs 8 and make its suitable and duct 52 that places cock cap 5.

Two springs 7 can be the spring with different elasticity coefficient or number of turns with 8.

When above-mentioned component composition is implemented, as shown in Figure 2, the screw thread that locking cap 2 utilization takes shape in outer portion be fixed at joint 1 in opposite directions water intake 11 hold the inner corresponding screw thread of body in addition, give the inner containing space of this body that is placed in band locking cap 2 in advance and adjust join spring 7 and water inlet valve plug 4 of seat 3, and water inlet valve plug 4 is suitably blockaded in water inlet valve port 13, and pressure release valve plug 6

connection springs

8 and 5 of cock caps are located at and are derived holding in the body in addition of the mouth of pipe 12 in opposite directions.

When originally novel cooperation water heater and pipeline enforcement group are established, as shown in Figure 3, be to be installed in appropriate location on the cold water inlet road of water heater, and when cold water is entered by water inlet pipe mouth 11, because of the pressure at water inlet pipe mouth 11 places the power of replacing greater than place's pressure and spring 7 in the water inlet valve port 13, so cold water pressure is pushed into water valve plug 4 pressure springs 7, but be a nonocclusive communicating state, make cold water pass through smoothly, this moment, the pressure at water inlet pipe mouth 11 places was the first-class state that flattens weighing apparatus with the pressure of deriving the mouth of pipe 12, as shown in Figure 4.

In addition, see also Fig. 5, when water heater inside is higher than its set point because of heated pressure, promptly deriving the mouth of pipe 12 places bears when responding pressure greater than the pressure of water inlet pipe mouth 11, the action of one release of pressure must be arranged, and the heat hydraulic pressure that reflux because of the release of pressure effect this moment pushes against pressure release valve plug 6 pressure springs 8, and is a non-closed state, hot water is refluxed flow in the water inlet pipe mouth 11, and keep safe condition through pressure releasing passages 15.

Above-mentioned water inlet valve plug 4 cooperates outside the control its opportune moment (pressure size) with the

spring

7 and 8 that the pressurized of pressure release valve plug 6 is opened divided by different elasticity coefficient, and the wherein still available advance and retreat fine setting pushing top spring 7 of adjusting seat 3 changes it and imposes on the into reaction force of water valve plug 4.

In addition, when if desire is implemented maintenance, that can utilize that a screw opener stretches through water intake 11 in opposite directions holds body in addition, it is inserted and is butted on connecting rod 31 chases 311 in addition, pull and tune bed rearrangement 3, other is placed through the water inlet valve plug 4 of the adjusting seat 3 ducts 34 into water valve port 13 of blockading, and makes water inlet pipe mouth 11 be the state that can't communicate with the derivation mouth of pipe 12, refrigeration water can't flow into, in order to the carrying out of maintenance work.

Claims

1. the safety relief valve of a water heater, it is characterized in that: include a joint, one fixed base, one adjusts seat, one water inlet valve plug, one cock cap, members such as a pressure release valve plug and two springs, wherein, joint is nearly cross hollow tube, its water inlet pipe mouth is orthogonal in deriving the mouth of pipe, and holding in addition in the body of water inlet pipe mouth relatively, adjusts cover for seat knot spring with the locking cap order and replaces in a water inlet valve plug is placed in, order water inlet valve plug hinders in the water inlet valve port, the pressure release valve plug cooperate the spring resistance be butted on and derive the mouth of pipe in opposite directions hold pressure release valve port in the body in addition, establish with the cock cap envelope body outer end, this body also forms the pressure releasing passages that communicates with water inlet pipe mouth; This safety valve group is located on the heater inleting pipe road, and the cold water of leading into can be pushed into open the water valve plug and sent in the water heater by deriving the mouth of pipe by the water inlet valve port.