CN201269355Y

CN201269355Y - Improved water-sealing high-temperature sluice valve

Info

Publication number: CN201269355Y
Application number: CNU2008201528503U
Authority: CN
Inventors: 尤建明
Original assignee: SHANGHAI MINGZHU VALVE MANUFACTURING Co Ltd
Current assignee: SHANGHAI MINGZHU VALVE MANUFACTURING Co Ltd
Priority date: 2008-09-09
Filing date: 2008-09-09
Publication date: 2009-07-08
Anticipated expiration: 2018-09-09

Abstract

The utility model belongs to the technical field of a water seal gate valve, in particular to an upward-dismantled improved water seal high-temperature gate valve with a ripple pipe. A shaft cover is connected with the beam of a C-shaped bracket through a T-shaped groove, the shaft cover on the upper part of the C-shaped bracket is connected with a handwheel by a buckle, the upper part of the valve rod is connected with the shaft cover and a valve lid from the top to the bottom in sequence, the bottom beam of the C-shaped bracket is fixed on the side of the filling room opening in the upper valve body, the valve lid is fixed on the filling room opening by adopting a valve lid nut, the upper part of the inner wall in the bottom valve body is provided with a support groove, the horizontal surface of a T-shaped seal board is laid on the support groove, the outside of the vertical part of the T-shaped seal board is welded with the upper end of the ripple pipe, the lower end of the ripple pipe is welded on the horizontal round convex surface of the valve rod, the bottom of the valve rod is connected with a reversed H-shaped wedge-shape elastic flashboard by adopting the T-shaped groove. Compared with the prior art, the C-shaped bracket and the dismantled upper and lower valve body are convenient to replacement and servicing of the components in the valve body, the additional seal board and the ripple pipe increase the sealing, and the valve rod shaft shoulder prevents the flying of the valve rod.

Description

A kind of improved water seal high temperature cut-off valve

[technical field]

The utility model belongs to the Water Seal Gate Valves technical field, specifically a kind of improved water seal high temperature cut-off valve of the up dismantled type with bellows.

[background technique]

The Placement of existing Water Seal Gate Valves support and valve body all is to go up the dress formula mostly, causes overhauling, changing the inconvenience of dummy stack; Some gate valve rod is shorter, and valve rod is more smooth again, so cross under the high situation and may fly out in the valve pocket internal pressure.

[summary of the invention]

The purpose of this utility model is to overcome the prior art deficiency, change support into C shape support, form the up dismantled type of opening with valve body and be connected, set up sealing plate up and down between valve body, play sealing and spacing double action, and establish bellows increase sealing on the valve rod in the valve chamber that water contact.

For achieving the above object, a kind of improved water seal high temperature cut-off valve of design, comprise handwheel, valve gap, support, valve body, valve rod, flashboard etc., valve rod runs through valve body, the valve rod top connects handwheel, stem bottom connects flashboard, it is characterized in that: axle sleeve is put the beams in place with C shape support and is connected with T-slot, the axle sleeve on C shape support top is connected with buckle with handwheel, the valve rod top axle sleeve that from top to bottom is threaded successively, valve gap, C shape frame bottom crossbeam is fixed on filler chamber's oral-lateral of upper valve body, valve gap adopts bonnet nut to be fixed on filler chamber's mouth, a bracket is established on the following valve interior wall top that is connected with upper valve body, T shape sealing plate horizontal plane be shelved on the bracket, T shape sealing plate vertical component effect external welding bellows upper end, the bellows lower end is welded on the horizontal circle convex surface of nearly bottom valve rod, stem bottom is connected with " worker " font wedge shape Flexible disc employing T-slot.In the described valve body filler chamber below valve gap filler is housed.Described sealing plate is respectively equipped with sealing gasket with upper and lower valve body surface of contact.Stem lower portion in bellows is provided with the shaft shoulder, the open amount of restriction valve rod.Corresponding " worker " font wedge shape Flexible disc place, valve body bottom is provided with the groove of falling the mushroom-like.

The utility model is compared with prior art, and open C shape support promptly succinctly is convenient to again valve gap is opened the replacing filler; Valve body is also detachable in addition, also is convenient to the repair and replacement of component in the valve body; Set up sealing plate between valve body and play water proof and the effect that limits the valve rod open degree, sealing plate valve stem is down established the shaft shoulder, prevents flying out of valve rod, and the valve rod of sealing plate bottom is set up the sealing that bellows has more increased valve outward.

[description of drawings]

Fig. 1 is a structural representation of the present utility model.

Referring to accompanying drawing 1,1 is handwheel; 2 is valve rod; 3 is valve gap; 4 is bonnet nut; 5 is filler; 6 is upper valve body; 7 is T shape sealing plate; 8 are following valve body; 9 is bellows; 10 is the shaft shoulder; 11 is the horizontal circle convex surface, the bottom position of nearly valve rod; 12 is " worker " font wedge shape Flexible disc; 13 are the groove of falling the mushroom-like, are located at valve body inner bottom part position; 14 is sealing gasket; 15 is C shape support.

[embodiment]

Below in conjunction with accompanying drawing the utility model is further described, the utility model is still more clearly concerning those skilled in the art.

Referring to Fig. 1, when this water seal high temperature cut-off valve is closed condition, " worker " font wedge shape Flexible disc 12 has vertically cut off intake-outlet, adopt the worker " font wedge shape Flexible disc 12, when can indent at the sealing surface on pressure action of medium lower flashboard surface, play a buffer function; distortion has good adaptability to valve body; guaranteed the reliability of sealing, avoided flashboard to fasten the phenomenon that is difficult to open because of overload, be applicable to very much high temperature media.In the time will opening, rotate handwheel 1, drive lower valve rod 2 at screw thread rises, until under the effect of the shaft shoulder 10 and T shape sealing plate 7, stopping rising, the design of the shaft shoulder and the valve rod of lengthening can also prevent the valve rod situation that flies out under high pressure, worker " font wedge shape Flexible disc 12 also rises thereupon and makes the medium circulation.

The double seal pad that is provided with between T shape sealing plate 7 and valve body has promptly increased the sealing between sealing plate and valve body, has reduced the wearing and tearing between them again;

The bellows 9 that welds between T shape sealing plate 7 belows and the stem lower portion horizontal circle convex surface, prevented medium from valve rod and sealing plate contact gap let out, further increased sealing,, filler 5 in the filler chamber has also been arranged as Sealing even after bellows decreases leakage always;

Be located at the groove of falling the mushroom-like 13 of valve body inner bottom part position, promptly flashboard played good fixation, can also filter out the impurity in the medium to a certain extent, reduce the wearing and tearing of impurity the gate valve inner piece.

Claims

1, a kind of improved water seal high temperature cut-off valve, comprise handwheel, valve gap, support, valve body, valve rod, flashboard etc., valve rod runs through valve body, the valve rod top connects handwheel, stem bottom connects flashboard, it is characterized in that: axle sleeve (16) is put the beams in place with C shape support (15) and is connected with T-slot, the axle sleeve (16) on C shape support (15) top is connected with buckle with handwheel, valve rod (2) the top axle sleeve (16) that from top to bottom is threaded successively, valve gap (3), C shape support (15) base cross members is fixed on filler chamber's oral-lateral of upper valve body (6), valve gap (3) adopts bonnet nut (4) to be fixed on filler chamber's mouth, following valve body (8) upper inside wall that is connected with upper valve body (6) is established a bracket, the horizontal plane of T shape sealing plate (7) is shelved on the bracket, vertical component effect external welding bellows (9) upper end of T shape sealing plate (7), bellows (9) lower end is welded on the horizontal circle convex surface (11) of nearly bottom valve rod (2), and valve rod (2) bottom adopts T-slot to be connected with " worker " font wedge shape Flexible disc (12).

2, a kind of improved water seal high temperature cut-off valve as claimed in claim 1 is characterized in that: describedly in the valve body filler chamber of valve gap (3) below filler (5) is housed.

3, a kind of improved water seal high temperature cut-off valve as claimed in claim 1 is characterized in that: described sealing plate (7) is respectively equipped with sealing gasket (14) with upper and lower valve body surface of contact.

4, a kind of improved water seal high temperature cut-off valve as claimed in claim 1 is characterized in that: valve rod (2) bottom in bellows (9) is provided with the shaft shoulder (10).

5, a kind of improved water seal high temperature cut-off valve as claimed in claim 1 is characterized in that: valve body corresponding " worker " font wedge shape Flexible disc in bottom (12) locates to be provided with the groove of falling the mushroom-like (13).