CN206159635U - Stop valve sealing mechanism - Google Patents

Abstract

The utility model discloses a stop valve sealing mechanism, including screw, handle, nut, bolt no. 1 and valve body, the screw is pegged graft at the lateral wall of handle, bolt no. 1 cup joints the inboard at the nut through the screw, bolt no. 1 sets up the top at the valve body, the below of nut sets up to pack to be covered, sealing gland is connected on the base that the filler is covered, the sealing gland zonulae occludens filler, sealing gland and filler all set up the inner chamber at restriction device, interior thread connection bolt no. 2 is passed through to the bottom that the filler is covered, and sealing gland, filler and restriction device all set up the same lateral wall at the warp beam. This stop valve sealing mechanism at the operation state of stop valve in -process, takes the isolating function of multiple article, and the leakproofness of guaranteeing overall structure reaches bestly, later, provides safe, effectual confined space for and then process more effectively, realizes effective transport of inside object then.

Description

One kind cut-off valve seal mechanism

Technical field

The utility model is related to stop valve technical field, specially a kind of cut-off valve seal mechanism.

Background technology

At present high parameter is overcritical, in ultra supercritical unit and the Gas Turbine Plant with combined cycle, due to The problems such as Unit Commitment is often, drain temperature pressure is high, operating condition is severe, cause hydrophobic and blowdown for HTHP Stop valve service life is very short, is used for general employing of hydrophobic, blowdown stop valve both at home and abroad originally and valve seat is processed on valve body, And take the mode of built-up welding to improve hardness.This design valve seat and valve element joint are both sealing surface, are again that valve was being switched The throttleng surface of journey.Valve element typically adopts cone seal.Valve working amount is changed after damage big, high cost.

Utility model content

The purpose of this utility model is to provide a kind of cut-off valve seal mechanism, to solve above-mentioned background technology in propose Problem.

For achieving the above object, the utility model provides following technical scheme：One kind cut-off valve seal mechanism, including screw Nail, handle, nut, bolt one and valve body, the screw is plugged on the side wall of handle, and the bolt one passes through thread bush The inner side of nut is connected on, the bolt one is arranged on the top of valve body, and the lower section of the nut arranges filler and covers, described The base connection sealing gland that filler is covered, the sealing gland closely connects filler, and the sealing gland and filler are equal The inner chamber of restraint device is arranged on, the bottom that described filler covers passes through internal and external threads connecting bolt two, and sealing gland, filling Thing and restraint device are arranged at the same side wall of warp beam.

Preferably, the external wall of upper portion of the warp beam arranges label, the lower bottom end connection tip of the warp beam.

Preferably, the side wall of the warp beam is arranged and covered, and sealing gland, filler and restraint device are respectively positioned under lid Side, the bottom connection gland of the upper lid.

Preferably, the inner chamber of the restraint device arranges valve gap, and the bottom of restraint device arranges packing ring.

Preferably, warp beam side wall arranges solid bolt, and packing ring and solid bolt are symmetricly set on the both sides of warp beam.

Preferably, the port of the screw arranges plug, and plug is shaped as equilateral hexagon.

Compared with prior art, the beneficial effects of the utility model are：The cut-off valve seal mechanism, in the running of stop valve In state procedure, take the isolation features of many heavy objects, it is ensured that integrally-built sealing reach it is best, it is afterwards, more efficient Ground provides safe and effective sealing space for ensuing operation, and effective conveying of internal objects is realized then.

Description of the drawings

Fig. 1 is left side structure schematic diagram of the present utility model；

Fig. 2 is right side structure schematic diagram of the present utility model；

Fig. 3 is main structure diagram of the present utility model；

Fig. 4 is overlooking the structure diagram of the present utility model；

Fig. 5 is plug construction schematic diagram of the present utility model；

Fig. 6 is internal motion step schematic diagram of the present utility model.

In figure：1 screw, 2 handles, 3 labels, 4 nuts, 5 bolts one, 6 fillers are covered, 7 sealing glands, 8 bolts two, 9 Filler, 10 restraint devices, 11 warp beams, 12 tips, 13 valve bodies, lid, 15 glands, 16 valve gaps, 17 packing rings, 18 are consolidated on 14 Bolt, 19 plugs.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.

Fig. 1-6 are referred to, the utility model provides a kind of technical scheme：One kind cut-off valve seal mechanism, including screw 1st, handle 2, nut 4, bolt 1 and valve body 13, the screw 1 is plugged on the side wall of handle 2, and the bolt 1 leads to The inner side that screw thread is socketed in nut 4 is crossed, the bolt 1 is arranged on the top of valve body 13, the port of the screw 1 Plug 19 is set, and plug 19 is shaped as equilateral hexagon, the lower section of the nut 4 arranges filler and covers 6, and described filler is contained The base connection sealing gland 7 of lid 6, the sealing gland 7 closely connects filler 9, and the sealing gland 7 and filler 9 are equal The inner chamber of restraint device 10 is arranged on, the inner chamber of the restraint device 10 arranges valve gap 16, and the bottom of restraint device 10 is arranged Packing ring 17, described filler is covered 6 bottom and is filled by internal and external threads connecting bolt 28, and sealing gland 7, filler 9 and constraint The 10 the same side walls for being arranged at warp beam 11 are put, the side wall of the warp beam 11 arranges upper lid 14, and sealing gland 7, the and of filler 9 Restraint device 10 is respectively positioned on the lower section of lid 14, and the bottom connection gland 15 of the upper lid 14, the external wall of upper portion of the warp beam 11 sets Put label 3, the lower bottom end connection tip 12 of the warp beam 11, the side wall of the warp beam 11 arranges solid bolt 18, and packing ring 17 and solid Bolt 18 is symmetricly set on the both sides of warp beam 11.

Operation principle：The cut-off valve seal mechanism, drives handle 2 so that handle 2 is in running order using screw 1, Rotated using the bolt 1 of the downside of nut 4 afterwards, it is ensured that overall structure is under the control of restraint device 10, and is fettered Filler 9 and the collective effect filler of sealing gland 7 inside device 10 covers 6, carries out the fit sealing of materials inside, while The packing ring 17 of the left and right sides of warp beam 11 and solid bolt 18, common opening movement state, it is ensured that the working stability at tip 12 enters one then Step sealing is internal, while working condition held stationary is carried out.During the operating state of stop valve, take many heavy objects every From function, it is ensured that integrally-built sealing reach it is best, afterwards, more efficiently for ensuing operation provide safely, have The sealing space of effect, realizes effective conveying of internal objects then.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repaiies Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. it is a kind of to end valve seal mechanism, including screw (1), handle (2), nut (4), bolt one (5) and valve body (13), the screw (1) is plugged on the side wall of handle (2), and the bolt one (5) is socketed in the interior of nut (4) by screw thread Side, the bolt one (5) is arranged on the top of valve body (13), it is characterised in that：The lower section of the nut (4) arranges filler Cover (6), described filler covers base connection sealing gland (7) of (6), the sealing gland (7) closely connects filler (9), the sealing gland (7) and filler (9) are arranged at the inner chamber of restraint device (10), and described filler covers the bottom of (6) End is by internal and external threads connecting bolt two (8), and sealing gland (7), filler (9) and restraint device (10) are arranged at warp beam (11) the same side wall.

2. one kind according to claim 1 ends valve seal mechanism, it is characterised in that：The external wall of upper portion of the warp beam (11) Label (3) is set, and the lower bottom end connection of the warp beam (11) is sophisticated (12).

3. one kind according to claim 1 ends valve seal mechanism, it is characterised in that：The side wall of the warp beam (11) is arranged Upper lid (14), and sealing gland (7), filler (9) and restraint device (10) are respectively positioned on lid (14) lower section, the upper lid (14) Bottom connection gland (15).

4. one kind according to claim 1 ends valve seal mechanism, it is characterised in that：The inner chamber of the restraint device (10) Valve gap (16) is set, and the bottom of restraint device (10) arranges packing ring (17).

5. one kind according to claim 1 ends valve seal mechanism, it is characterised in that：Warp beam (11) side wall arranges solid Bolt (18), and packing ring (17) and solid bolt (18) are symmetricly set on the both sides of warp beam (11).

6. one kind according to claim 1 ends valve seal mechanism, it is characterised in that：The port of the screw (1) Plug (19) is set, and plug (19) is shaped as equilateral hexagon.