CN201373172Y

CN201373172Y - 'S'-shaped corrugated diaphragm stop valve

Info

Publication number: CN201373172Y
Application number: CN200820118175U
Authority: CN
Inventors: 彭新民; 彭真武
Original assignee: Individual
Current assignee: Peng Xinmin; Peng Zhenwu
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-12-30
Anticipated expiration: 2018-06-13

Abstract

The utility model relates to a diaphragm stop valve (figure 1) with excellent sealing performance, which is technically characterized by consisting of a structure of a round 'S'-shaped corrugated membrane, and being capable of working under working state of high temperature, high pressure, large pass amount and non leakage for a long time; the diaphragm stop valve combines the advantages of a diaphragm valve, a stop valve and a corrugated tube valve, improves the use safety of the valve, and solves the headache problems of incapability of high-temperature resistance and high-pressure resistance of the diaphragm valve and leakage of the stop valve at the sealed part of a valve rod; furthermore, the diaphragm valve can be sterilized under high temperature and high pressure, has no sanitation dead angel during application, is the optimal choice of application in industries such as bioengineering, nuclear energy source extraction, gas delivery, thermal power generation, boilers, sewage disposal, water supply and discharge and the like, and has simple structure, convenient maintenance, wide application and the like, thus being the orientation of valve improvement.

Description

" S " type ripple barrier film stop valve

Affiliated technical field

A, the utility model relate to a kind of novel " S " type ripple series barrier film stop valve (Fig. 1), are applicable to biochemical industry, in the industries such as pharmacy, fermentation, food, health, and do not have the corner or spot as yet untouched by a clean-up campaign can sterilize the time under high temperature, high pressure.

The barrier film stop valve that B, this series metal diaphragm are formed can be applicable to that nuclear power source is extracted, the requirement of combustion gas course of conveying, does not have functions such as leakage and warning.

C, the utility model relate to a kind of novel " S " type ripple series diaphragm, are applicable to the application of industries such as thermal power generation, boiler, sewage treatment, water supply and draining.

Background technique

Present diaphragm valve is with rubber (EPDM) or poly-tetrafluoro (PDFE) or by the double-film diaphragm valve of (EPDM)+(PDFE) form; Thus Zu He membrane valve it stimulate the menstrual flow little, working pressure is little, the heatproof degree is low, working life is shorter; The external leakage at stop valve valve stem seal place is serious, has the corner or spot as yet untouched by a clean-up campaign again, and the application surface press for extracting juice is little etc.; Deficiency factors such as the structure of bellows stop valve is complicated again, working life is short.

Summary of the invention

The technological scheme that its technical problem that solves the utility model adopts is:

1. barrier film stop valve, connection, " S " type ripple diaphragm, flap, valve rod, loam cake and handwheel on low bit-type valve body, it is characterized in that: " S " type diaphragm is fixed on the flap, connects valve rod on the flap, valve rod passes valve gap, the handwheel of packing on the valve rod; Be " S " type diaphragm, valve gap on the valve body, carry out fixedly connected with bolt.

2. " S " according to claim 1 type ripple barrier film stop valve is characterized in that: the structure of being somebody's turn to do " S " type ripple barrier film stop valve valve body is to adopt a kind of structure of low bit-type valve body.

3. " S " according to claim 1 type ripple barrier film stop valve is characterized in that: " S " type ripple barrier film stop valve diaphragm is divided into multilayer metal foil and laminates moulding and teflon nonmetallic material moulding two classes.

4. " S " type ripple barrier film stop valve according to claim 1 is characterized in that: the working stroke of this series " S " type ripple diaphragm: the position h1 that diaphragm moves down when closing and being made up of the position h2 that moves on the diaphragm when opening; That is: the stroke of diaphragm work is H=h1+h2.

Beneficial effect

The beneficial effects of the utility model are: in conjunction with the combination that the advantage of membrane valve, stop valve, Bellows valves is carried out, improved the Security that valve uses, solved the hang-up that membrane valve non-refractory, high pressure and stop valve leak at the valve stem seal place; And can under high temperature, high pressure, sterilize, there is not the corner or spot as yet untouched by a clean-up campaign during application; It is the optimal selection of sector applications such as bioengineering, nuclear power source extraction, combustion gas conveying, thermal power generation, boiler, sewage treatment, water supply and sewage; And simple in structure, the maintenance convenient.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the working state figure of the utility model " S " type ripple barrier film stop valve when closing.

Fig. 2 is the utility model " S " type ripple membrane valve stop valve valve body structure schematic representation.

Fig. 3 is the utility model " S " type ripple barrier film stop valve diaphragm structure schematic representation.

Fig. 4 is the utility model " S " type ripple barrier film stop valve diaphragm, concerns schematic representation when opening and closing.

Embodiment

Valve body in Fig. 1 (1) is the road warp that fluid flows, and sealing valve port circle (2) has been the effect of airtight valve port, and it is fixed on flap (4) lower end by flap lower cover (3) by stainless steel screw (14)." S " type convolution diaphragm (5) is fixed on the flap upper end by two semi-ring formula flap upper press covers (6) by stainless steel screw (15), " S " type convolution diaphragm the other end outer ring is fixed between valve body (1) and the valve gap (10) by bolt (13), has separated fluid thus to external leakage.Flap upper press cover (6) is fixedly also being fixed valve rod (7) in the diaphragm, and valve rod (7) has certain free gap between flap (4) and flap loam cake (6), and it mainly has been the effect of doing aligning and rotation.Handwheel (11) is fixed on the valve rod upper end position by nut (17), driving valve rod when rotating handwheel rotates, because the effect of screw thread between valve rod and loam cake, make valve rod produce certain moving up and down, valve rod moves up and down the drive flap and moves up and down, and thus valve port has been produced the effect of closing and opening.At valve rod (4) middle part one regulating ring (8) is arranged, the thickness that can regulate it is regulated the Lift of flap, reaches the flow of regulating valve.Being provided with a secondary between valve rod (7) and loam cake (10) does not have pressure valve rod " h " RunddichtringO (9), and seal ring (9) is in work under the normal pressure when the valve proper functioning, and this moment, its wearing and tearing were little; When valve working and diaphragm has leakage phenomenon, seal ring this moment (9) is in the compression seal working state, and it can effectively carry out secondary seal.