CN206998811U - A kind of provision for disengagement of stifled valve - Google Patents

A kind of provision for disengagement of stifled valve Download PDF

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Publication number
CN206998811U
CN206998811U CN201721008301.4U CN201721008301U CN206998811U CN 206998811 U CN206998811 U CN 206998811U CN 201721008301 U CN201721008301 U CN 201721008301U CN 206998811 U CN206998811 U CN 206998811U
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Prior art keywords
bonnet
bearing plate
force bearing
load
valve body
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CN201721008301.4U
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Chinese (zh)
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庞弋骧
刘彤
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NANJING ELECTRIC POWER PLANT OF DATANG GROUP
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NANJING ELECTRIC POWER PLANT OF DATANG GROUP
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Abstract

The utility model provides a kind of provision for disengagement of stifled valve, and stifled valve includes valve body, bonnet and locating part, and described bonnet is installed on valve body by locating part, and described provision for disengagement includes load part and driving part:The load part can be fixedly connected with the valve body, and driving part is arranged on bonnet upper limit between load part and bonnet, and driving part pushes bonnet to dismantle locating part;The load part can be fixedly connected with bonnet, and driving part is arranged on valve body upper limit between load part and valve body, and driving part lifts load part to dismantle bonnet.Provision for disengagement of the present utility model is connected by changing load part with valve body or bonnet, the corresponding active position for changing drive device, first HTHP is overcome to push bonnet, after taking out locating part, bonnet is taken out by drive device again, the working strength of maintainer is greatly alleviated, and greatly improves the efficiency of dismounting, more securely and reliably.

Description

A kind of provision for disengagement of stifled valve
Technical field
The extracting tool technical field of valve is the utility model is related to, in particular it relates to a kind of provision for disengagement of stifled valve.
Background technology
Power plant blocks up valve and is used for power plant reheaing steam pipe, the isolating device as the static water pressure test.After the stifled valve of installing, The intermediate pressure cylinder of the reheater of boiler and steam turbine can be separated, the water pressure test can be carried out to each part of boiler respectively, and grasp Make simplicity, be again started up eliminating the hidden danger that heating surface and connecting pipe easily leak for unit, be the safe operation of unit Provide guarantee.During system normal operation, it is opening state (centre installs communicating pipe additional) to block up valve, and the pressure loss is minimum.Work as needs When carrying out the water pressure test, closure plate device only need to be put into valve body, adjusted slightly, you can realized isolation, complete the water pressure test.
Power plant's reheater high temperature section steam can reach 603 DEG C, pressure 5.98MPa, high temperature section block up valve because of high temperature deformation and The reasons such as oxidation cause gap to diminish, and dismounting is extremely difficult.Stifled valve dismounting be most difficult to one close be exactly bonnet dismounting, due to by The effect bonnet dismounting difficulty of HTHP is big, and existing method for dismounting generally requires 8 people and stifled valve could disassembled for 2 days, Not only time-consuming for method for dismounting, and waste of manpower, dangerous.
In view of this, it is special to propose the utility model.
Utility model content
In order to solve the above problems, the utility model provides a kind of provision for disengagement of stifled valve, specifically, employs as follows Technical scheme:
A kind of provision for disengagement of stifled valve, stifled valve include valve body, bonnet and locating part, and described bonnet is spacing by locating part On valve body, described provision for disengagement includes load part and driving part:The load part can be fixed with valve body to be connected Connect, driving part is arranged on bonnet upper limit between load part and bonnet, and driving part pushes bonnet spacing to dismantle Part;The load part can be fixedly connected with bonnet, and driving part is arranged on valve body upper limit between load part and valve body, Driving part lifts load part to dismantle bonnet.
Further, described load part includes the first load part and the second load part:The first described load Part is fixedly connected with the valve body, and driving part is arranged on bonnet upper limit between the first load part and bonnet, driving part Bonnet is pushed to dismantle locating part;The second described load part is fixedly connected with bonnet, and driving part is arranged on valve body It is spacing between the second load part and valve body, driving part lifts the second load part to dismantle bonnet.
Further, the first described load part includes the first force bearing plate and the first connector, first force bearing plate End be fixedly connected with the valve body respectively by the first connector, the drive device includes a telescopic output end, driving Device is arranged on bonnet, and its output end is only against on the first force bearing plate, by the way that the output end of drive device is stretched out into reaction Pushed on bonnet.
Further, the first described force bearing plate includes the first primary load bearing plate and at least two piece of first auxiliary force bearing plate, described The end of first primary load bearing plate is fixedly connected with the valve body by the first connector respectively, one end of the first auxiliary force bearing plate and the first master Force bearing plate is fixedly connected, and the other end is fixedly connected with the valve body by the first connector;For described drive device including multiple, its is defeated Go out end to be only against on the first primary load bearing plate and/or the first auxiliary force bearing plate respectively.
Further, the middle both sides of the first primary load bearing plate set neck, the described first auxiliary force bearing plate bag respectively Two pieces are included, one end of two piece of first auxiliary force bearing plate is respectively engaged with the neck of the first primary load bearing plate both sides, forms " ten " shape Supporting construction;Described drive device includes four, is respectively supported on four sides of " ten " shape supporting construction.
Further, the first described connector includes being fixedly connected with integral connecting screw and connection neck, described Connecting screw be connected on the installation lifting eye of valve body, the end of the first described force bearing plate is inserted respectively into connection neck It is interior.
Further, the second described load part includes the second force bearing plate and the second connector, second force bearing plate Middle part be fixedly connected by the second connector with bonnet, the end of the second force bearing plate is extended above the valve body of bonnet periphery;Institute Stating drive device includes a telescopic output end, and drive device is arranged on the valve body of bonnet periphery, and its output end is only against On second force bearing plate, lifted by stretching out to act on the second force bearing plate the output end of drive device, to dismantle bonnet.
Further, the second described force bearing plate includes two pieces, and what is be parallel to each other is fixed by the second connector with bonnet Connection, and the holding of the distance between two piece of second force bearing plate and bonnet is equal, described drive device is set respectively including four On the valve body of bonnet periphery, its output end is only against the both ends of two piece of second force bearing plate respectively.
Further, the middle part of the second described force bearing plate vertically sets at least two through holes, and described second connects One end of fitting sets outer connection screw thread, is fixedly connected through through hole by fastening bolt with outer connection screw thread, and described second connects Connection screw thread in the other end setting of fitting, is fixedly connected with the fastening screw on bonnet.
Further, described through hole is ellipse hole, and the outer ring of ellipse hole is hexagonal structure.
Provision for disengagement of the present utility model includes load part and driving part, by change load part and valve body or Bonnet connects, and the corresponding active position for changing drive device, first overcomes HTHP to push bonnet, after taking out locating part, then leads to Over-driving device takes out bonnet.Provision for disengagement of the present utility model greatly alleviates by load part and driving part The working strength of maintainer, and the efficiency of dismounting is greatly improved, more securely and reliably.
Specifically, the provision for disengagement of the stifled valve of the utility model has the following advantages:
(1) provision for disengagement that the utility model blocks up valve borrows the anti-work of hydraulic jack first by the first load part Firmly, bonnet is depressed into below pendant collet, takes out pendant collet;Then by the second load part, equally by hydraulic jack Bonnet is taken out on top out of valve body.It is not readily removable because the reason such as high temperature deformation and oxidation causes gap to diminish to solve the stifled valve of high temperature section The problem of solution.
(2) using after provision for disengagement of the present utility model, originally 8 people is needed stifled valve to be disassembled for 2 days, as long as existing 41 day people's used time just can complete work, improve stifled valve maintenance efficiency, reduce the input of human resources, securely and reliably.
(3) the utility model block up valve provision for disengagement each several part it is disassembled, can flexible assembling, efficiently solve special tool Have an a certain parts damages and caused by kit scrap problem, fixture cost can be saved, improve the service life of this instrument With the life-span, it is and easy to carry.
(4) provision for disengagement of the present utility model is simple in construction, simple for production, low manufacture cost, beneficial to popularization.
Brief description of the drawings
The front view of first primary load bearing plate of Fig. 1 the utility model provisions for disengagement;
The top view of first primary load bearing plate of Fig. 2 the utility model provisions for disengagement;
The side view of first primary load bearing plate of Fig. 3 the utility model provisions for disengagement;
The front view of first auxiliary force bearing plate of Fig. 4 the utility model provisions for disengagement;
The top view of first auxiliary force bearing plate of Fig. 5 the utility model provisions for disengagement;
The side view of first auxiliary force bearing plate of Fig. 6 the utility model provisions for disengagement;
The structural representation of first connector of Fig. 7 the utility model provisions for disengagement;
The front view of second force bearing plate of Fig. 8 the utility model provisions for disengagement;
The top view of second force bearing plate of Fig. 9 the utility model provisions for disengagement;
The side view of second force bearing plate of Figure 10 the utility model provisions for disengagement;
The structural representation of second connector of Figure 11 the utility model provisions for disengagement;
The scheme of installation of first load part of Figure 12 the utility model provisions for disengagement;
The scheme of installation of second load part of Figure 13 the utility model provisions for disengagement.
Label declaration in accompanying drawing:The the first auxiliary force bearing plate 4- connecting screws 5- connections of 3- of 1- the first primary load bearing plate 2- necks Connection screw thread in neck 6- the second force bearing plate 7- through hole 8- hexagonal structures the second connectors of 9- 10-.
Embodiment
A kind of provision for disengagement of stifled valve of the present utility model is described in detail below in conjunction with the accompanying drawings:
As shown in Fig. 1-Figure 13, a kind of provision for disengagement of stifled valve of the present utility model, stifled valve includes valve A, bonnet C and limit Position part, described bonnet C are installed on valve A by locating part, and described provision for disengagement includes load part and driving Part:The load part can be fixedly connected with the valve body, driving part be arranged on bonnet upper limit load part and bonnet it Between, driving part pushes bonnet to dismantle locating part;The load part can be fixedly connected with bonnet, and driving part is arranged on For valve body upper limit between load part and valve body, driving part lifts load part to dismantle bonnet.
Provision for disengagement of the present utility model includes load part and driving part, by change load part and valve A or Person's bonnet C connections, the corresponding active position for changing drive device, first overcome HTHP to push bonnet C, after taking out locating part, Bonnet C is taken out by drive device again.Provision for disengagement of the present utility model greatly subtracts by load part and driving part The light working strength of maintainer, and the efficiency of dismounting is greatly improved, more securely and reliably.
Provision for disengagement of the present utility model is divided into two steps when dismantling bonnet, therefore, as of the present utility model one Kind preferred embodiment, load part described in the utility model include the first load part and the second load part:Described First load part is fixedly connected with the valve body, and driving part is arranged on bonnet upper limit between the first load part and bonnet, Driving part pushes bonnet to dismantle locating part;The second described load part is fixedly connected with bonnet, and driving part is set In valve body upper limit between the second load part and valve body, driving part lifts the second load part to dismantle bonnet.This reality The first load part and the second load part is respectively adopted with corresponding two demounting procedures of new provision for disengagement, can be according to respective Dismounting loading characteristic design the structure design of the first load part and the second load part, it is simply straight when carrying out disassembling section Connect, avoid maloperation.
As shown in Fig. 1-Fig. 7, the first load part described in the utility model includes the first force bearing plate and the first connector, The both ends of first force bearing plate are fixedly connected by the first connector with valve A respectively, and the drive device, which includes one, to stretch The output end of contracting, drive device are arranged on bonnet C, and its output end is only against on the first force bearing plate, by by drive device Output end is stretched out reaction and pushed on bonnet.
Further, the first described force bearing plate includes the first primary load bearing plate 1 and at least two piece of first auxiliary force bearing plate 3, institute The end for stating the first primary load bearing plate 1 is fixedly connected by the first connector with valve A respectively, one end of the first auxiliary force bearing plate 3 with First primary load bearing plate 1 is fixedly connected, and the other end is fixedly connected by the first connector with valve A;Described drive device includes Multiple, its output end is only against on the first primary load bearing plate 1 and/or the first auxiliary force bearing plate 3 respectively.First support of the present utility model Plate includes the first primary load bearing plate 1 and at least two piece of first auxiliary force bearing plate 3, and corresponding drive device includes multiple, its output end point It Zhi not be against on the first primary load bearing plate 1 and/or the first auxiliary force bearing plate 3, the multiple spot active force to bonnet C so can be achieved, be more easy to In realizing depression.
Further, since power plant blocks up, valve overall volume is larger, and the first force bearing plate of the present utility model is by the He of the first primary load bearing plate 1 At least two piece of first auxiliary force bearing plate 3 combination installation is formed, and each several part is disassembled, can flexible assembling, efficiently solve special tool Have an a certain parts damages and caused by kit scrap problem, fixture cost can be saved, improve making for this first force bearing plate With cycle and life-span, and it is easy to carry.
As shown in figs 1 to 6, the middle both sides of the first primary load bearing plate 1 described in the utility model set neck 2 respectively, described The first auxiliary force bearing plate 3 include two pieces, one end of two piece of first auxiliary force bearing plate 3 is respectively engaged with the both sides of the first primary load bearing plate 1 In neck 2, " ten " shape supporting construction is formed;Described drive device includes four, is respectively supported at " ten " shape support knot On four sides of structure.Specifically, described neck 2 is trapezoidal neck.
First primary load bearing plate 1 of the present utility model is the narrow trapezoidal platy structure in middle wide both sides, and the first auxiliary force bearing plate 3 is Cuboid platy structure.In addition, the first primary load bearing plate 1 of the present utility model, the first auxiliary force bearing plate 3 are vertically arranged, so may be used Increase its overall stress intensity, prevent stress and deformation.
As shown in fig. 7, the first connector described in the utility model includes being fixedly connected with integral connecting screw 4 and connected Neck 5 is connect, described connecting screw 4 is connected on the installation lifting eye of valve A, and the end of the first described force bearing plate is inserted respectively Enter into connection neck 5.
As a kind of preferred embodiment of the present utility model, length of side 600mm on the first primary load bearing plate 1 of the first force bearing plate, Lower length of side 900mm, wide 150mm, thick 20mm;First auxiliary force bearing plate (Fig. 4-Fig. 6) shares 2 pieces, long 450mm, wide 100mm, thickness 20mm。
There is a trapezoidal neck at the middle part of first primary load bearing plate 1, the trapezoidal long 100mm of neck, wide 22mm, deep 40mm, and two pieces auxiliary are held Power plate 3 is inserted in trapezoidal neck, that is, forms the instrument of one " cross ".
Long 115mm, wide by 22, the deep 60mm of the connection neck 5 of first connector upper end;The specification of the connecting screw 4 of lower end For M56 × 150mm.
Such as Fig. 8-Figure 11, the second load part described in the utility model includes the second force bearing plate 6 and the second connector 9, The middle part of second force bearing plate 6 is fixedly connected by the second connector 9 with bonnet C, and the end of the second force bearing plate 6 extends bonnet Above the valve A of C peripheries;The drive device includes a telescopic output end, and drive device is arranged on the valve of bonnet C peripheries On body A, its output end is only against on the second force bearing plate 6, and the second force bearing plate 6 is acted on by the way that the output end of drive device is stretched out On lifted, to dismantle bonnet C.
Further, the second described force bearing plate 6 includes two pieces, and what is be parallel to each other is consolidated by the second connector 9 with bonnet C Fixed connection, and the distance between two piece of second force bearing plate 6 and bonnet C holdings are equal, described drive device is distinguished including four It is arranged on the valve A of bonnet C peripheries, its output end is only against the both ends of two piece of second force bearing plate 6 respectively.
The middle part of the second described force bearing plate 6 of the present utility model vertically sets at least two through holes 7, and described the One end of two connectors 9 sets outer connection screw thread, is fixedly connected through through hole 7 by fastening bolt with outer connection screw thread, described Connection screw thread 10 in the other end setting of second connector 9, is fixedly connected with the fastening screw on bonnet C.
Preferably, described through hole 7 is ellipse hole, can carry out certain position surplus adjustment when mounted, be easy to Installation, the required precision of processing is reduced, reduce processing cost.The outer ring of ellipse hole is hexagonal structure, hexagon knot Structure is relatively more firm, ensure that this through hole will not deform by immense pressure.
As a kind of preferred embodiment of the present utility model, the long 1000mm of the second force bearing plate 6, wide 100mm, thick 16mm.
Second force bearing plate 6 is provided with ellipse hole 7, major axis 48mm, short axle 32mm, and holes centre distance is 410mm.
The upper end of second connector 9 is screw portion, and screw rod specification is M30 × 450mm, and lower end is spiral shell in hexagon M30 Line.
As a kind of preferred embodiment of the present utility model, driving part of the present utility model can select to use hydraulic pressure Jack, locating part of the present utility model are pendant collet.
Reference picture 12, the connecting screw 4 of the first connector are separately fixed on the installation lifting eye B of four stifled valves, and first The four edges of force bearing plate insert the connection neck 5 of the first connector respectively.Four hydraulic jack D are placed on bonnet C, valve Cover C diameters 750mm.Hydraulic jack upper end is connected with four sides of the first force bearing plate.When four hydraulic jacks work simultaneously, By reaction force, bonnet C is pushed, so as to take out pendant collet.
Reference picture 13, first four second connectors 9 are fixed on bonnet C fastening screws E, by the second force bearing plate 6 from ellipse Manhole 7 passes through the second connector 9, two piece of second keeping parallelism of force bearing plate 6.The upper end of second connector 9 is consolidated with M30 bolts It is fixed, prevent 6 upward moving of the second force bearing plate.Four hydraulic jacks are placed on valve A, position F.Push up hydraulic jack upper end Two piece of second force bearing plate 6.When four hydraulic jacks simultaneously work when, by bonnet C out of valve A slowly on put forward.
Four hydraulic jacks must be synchronous, and lifting altitude is consistent, and ensures that bonnet is horizontal when above carrying.
The utility model blocks up the provision for disengagement of valve first by the first load part, borrows the reaction of hydraulic jack Power, bonnet is depressed into below pendant collet, takes out pendant collet;Then by the second load part, equally by hydraulic jack Bonnet is taken out out of valve body.It is not easily-disassembled because the reason such as high temperature deformation and oxidation causes gap to diminish to solve the stifled valve of high temperature section Problem, improve stifled valve maintenance efficiency, reduce the input of human resources, securely and reliably.
The provision for disengagement that the utility model blocks up valve is simple in construction, and each several part is disassembled, being capable of flexible assembling, effectively solution Specific purpose tool a certain parts damages and caused by kit scrap problem, fixture cost can be saved, improve this instrument Service life and life-span, and it is easy to carry.
After provision for disengagement of the present utility model, originally need 8 people stifled valve could be disassembled for 2 days, as long as existing 4 people 1 day used time greatly improved operating efficiency with regard to that can complete work.In addition, provision for disengagement of the present utility model is simple in construction, make Simplicity, low manufacture cost, beneficial to popularization.
Embodiment
Such as Fig. 1-Figure 13, a kind of provision for disengagement of stifled valve of the present embodiment, this provision for disengagement mainly includes two sets of load portions Part.First load part includes 1 piece of first primary load bearing plate, 2 piece of first auxiliary force bearing plate, 4 first connectors and 4 hydraulic pressure thousand Jin top, it act as pushing the bonnet of stifled valve, takes out pendant collet.Second load part includes 2 piece of second force bearing plate, 4 Two connectors and 4 hydraulic jacks, its effect are that the bonnet after pushing takes out.
The first load part is connected by the trapezoidal neck among the first primary load bearing plate with the first auxiliary force bearing plate, load Four angles of plate are also to be connected by the connection neck on the first connector.
First connector can be fixed on the cylindrical installation lifting eye of valve body, held by connecting screw equivalent to first The force bearing plate of power part is fixed on valve body, 4 hydraulic jacks is placed among bonnet and force bearing plate, by operating hydraulic pressure thousand Jin top, is pushed bonnet using the reaction force of hydraulic jack.
4 described hydraulic jacks uniformly must be placed on bonnet, and each hydraulic jack corresponding first is held The a line of the force bearing plate of power part, position is identical, and by equably beating hydraulic jack, bonnet is slowly pushed.
The distance between the corner of the force bearing plate of the first described load part and bonnet must be identical, used in us 4 hydraulic jacks are same models, to ensure that the lifting altitude for pushing a hydraulic jack is identical.
There is ellipse hole among second force bearing plate of the second described load part, it is ellipse for interting the second connector The outer ring of manhole is hexagonal structure, and hexagonal structure is relatively more firm, ensure that this hole will not become by immense pressure Shape.
The second connector lower end being interspersed in ellipse hole is hexagon female thread structure, on convenient and bonnet The fastening screw at end is connected.
Two piece of second force bearing plate of the second described load part needs to be placed in parallel when in use and keeps identical height, To ensure uniform force.
The second described connector upper end is tightened with the bolt of the high temperature high voltage resistant carried on stifled valve, and the is fixed with this bolt Two piece of second force bearing plate of two load parts, being allowed to should not upper and lower moving.
Described above is only preferred embodiment of the present utility model, not the utility model is made any formal Limitation, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any to be familiar with The technical staff of this patent is not being departed from the range of technical solutions of the utility model, when the technology contents work using above-mentioned prompting Go out a little change or be modified to the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solutions of the utility model, Any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still belongs to In the range of the utility model.

Claims (10)

1. a kind of provision for disengagement of stifled valve, stifled valve includes valve body, bonnet and locating part, and described bonnet passes through the spacing peace of locating part On valve body, it is characterised in that described provision for disengagement includes load part and driving part:The load part can be with valve Body is fixedly connected, and driving part is arranged on bonnet upper limit between load part and bonnet, driving part by bonnet push with Dismantle locating part;The load part can be fixedly connected with bonnet, driving part be arranged on valve body upper limit load part with Between valve body, driving part lifts load part to dismantle bonnet.
2. the provision for disengagement of a kind of stifled valve according to claim 1, it is characterised in that described load part includes first Load part and the second load part:The first described load part is fixedly connected with the valve body, and driving part is arranged on bonnet It is spacing between the first load part and bonnet, driving part pushes bonnet to dismantle locating part;The second described load portion Part is fixedly connected with bonnet, and driving part is arranged on valve body upper limit between the second load part and valve body, and driving part carries The second load part is risen to dismantle bonnet.
3. the provision for disengagement of a kind of stifled valve according to claim 2, it is characterised in that the first described load part includes First force bearing plate and the first connector, the end of first force bearing plate are fixedly connected with the valve body by the first connector respectively, The drive device includes a telescopic output end, and drive device is arranged on bonnet, and its output end is only against the first load On plate, pushed by the way that the output end of drive device is stretched out into reaction on bonnet.
4. the provision for disengagement of a kind of stifled valve according to claim 3, it is characterised in that the first described force bearing plate includes the One primary load bearing plate and at least two piece of first auxiliary force bearing plate, the end of the first primary load bearing plate pass through the first connector and valve respectively Body is fixedly connected, and one end of the first auxiliary force bearing plate is fixedly connected with the first primary load bearing plate, and the other end passes through the first connector and valve Body is fixedly connected;Described drive device includes multiple, and its output end is only against the first primary load bearing plate and/or first auxiliary held respectively On power plate.
A kind of 5. provision for disengagement of stifled valve according to claim 4, it is characterised in that the centre of the first primary load bearing plate Both sides set neck respectively, and the described first auxiliary force bearing plate includes two pieces, and one end of two piece of first auxiliary force bearing plate is respectively engaged with In the neck of first primary load bearing plate both sides, " ten " shape supporting construction is formed;Described drive device includes four, supports respectively On four sides of " ten " shape supporting construction.
6. the provision for disengagement of a kind of stifled valve according to claim 3-5 any one, it is characterised in that described first connects Fitting includes being fixedly connected with integral connecting screw and connection neck, and described connecting screw is connected to the installation lifting of valve body Kong Shang, the end of the first described force bearing plate are inserted respectively into connection neck.
7. the provision for disengagement of a kind of stifled valve according to claim 2, it is characterised in that the second described load part includes Second force bearing plate and the second connector, the middle part of second force bearing plate are fixedly connected by the second connector with bonnet, and second The end of force bearing plate is extended above the valve body of bonnet periphery;The drive device includes a telescopic output end, drive device It is arranged on the valve body of bonnet periphery, its output end is only against on the second force bearing plate, by the way that the output end of drive device is stretched out Act on the second force bearing plate and lifted, to dismantle bonnet.
8. the provision for disengagement of a kind of stifled valve according to claim 7, it is characterised in that the second described force bearing plate includes two Block, what is be parallel to each other is fixedly connected by the second connector with bonnet, and the distance between two piece of second force bearing plate and bonnet are protected Holding equal, described drive device includes four, is separately positioned on the valve body of bonnet periphery, and its output end is only against two respectively The both ends of the force bearing plate of block second.
9. the provision for disengagement of a kind of stifled valve according to claim 7 or 8, it is characterised in that the second described force bearing plate Middle part vertically sets at least two through holes, and one end of second connector sets outer connection screw thread, led to through through hole Cross fastening bolt to be fixedly connected with outer connection screw thread, in the other end setting of second connector in connection screw thread, with bonnet Fastening screw be fixedly connected.
10. the provision for disengagement of a kind of stifled valve according to claim 9, it is characterised in that described through hole is logical for ellipse Hole, the outer ring of ellipse hole is hexagonal structure.
CN201721008301.4U 2017-08-11 2017-08-11 A kind of provision for disengagement of stifled valve Active CN206998811U (en)

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CN201721008301.4U CN206998811U (en) 2017-08-11 2017-08-11 A kind of provision for disengagement of stifled valve

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107322531A (en) * 2017-08-11 2017-11-07 大唐南京发电厂 A kind of provision for disengagement of stifled valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107322531A (en) * 2017-08-11 2017-11-07 大唐南京发电厂 A kind of provision for disengagement of stifled valve
CN107322531B (en) * 2017-08-11 2024-01-16 大唐南京发电厂 Dismounting device of blocking valve

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