CN211890650U - Piston type cylinder mounting tool for pneumatic valve of nuclear power plant - Google Patents
Piston type cylinder mounting tool for pneumatic valve of nuclear power plant Download PDFInfo
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- CN211890650U CN211890650U CN202020273042.3U CN202020273042U CN211890650U CN 211890650 U CN211890650 U CN 211890650U CN 202020273042 U CN202020273042 U CN 202020273042U CN 211890650 U CN211890650 U CN 211890650U
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Abstract
The utility model discloses a piston cylinder mounting tool for pneumatic valve of nuclear power plant for install the cylinder sleeve on the cylinder piston, piston cylinder includes the cylinder flange, and piston cylinder mounting tool includes balanced flange and pull rod, and the pull rod is connected between cylinder flange and balanced flange, and balanced flange includes direction boss, balanced flange body and piston shaft guide, and the direction boss sets up in balanced flange body bottom, and the piston shaft guide is seted up at balanced flange center and is run through direction boss and balanced flange body. This piston cylinder mounting tool can make each position atress when the cylinder installation even, avoids because the sleeve that artifical installation atress inequality caused sinks, because of the artificial errors such as O ring, cylinder and piston damage, improves the installation effectiveness simultaneously, reduces artifical technical skill requirement, reduction time limit for a project, reduction unnecessary resource preparation.
Description
Technical Field
The utility model relates to a piston cylinder mounting tool suitable for pneumatic valve of nuclear power plant.
Background
The AW40SS series pneumatic power device is applied to a CEX006VL which is a water inlet isolation valve of a deaerator. The influence is kept apart to this valve is big, if a large amount of gas leakage of pneumatic power device cylinder appear, can lead to pneumatic power device closing torque not enough, closes at fortune unit valve mistake, and the oxygen-eliminating device loses the water supply, further leads to the evaporimeter water level to reduce, and then leads to the unit to shut down and stop piling. If a large amount of air leakage of the air cylinder of the pneumatic power device occurs when the machine is started, the closing torque of the pneumatic power device is insufficient, the valve cannot be opened, water cannot be supplied to the deaerator, and the machine cannot be started.
Due to the importance of pneumatic power units, the AW40S series of pneumatic power units have been planned as a spare part for recycling, replacing the pneumatic power units every 3 overhaul periods, and repairing the old pneumatic power units.
The whole body of the valve is 3000 kg, the pneumatic power device is 1000 kg, the single cylinder is 150 kg, the cylinder is heavy, the cylinder is extremely difficult to install no matter spare parts are repaired or the pneumatic power device is overhauled on site, and particularly the cylinder sleeve passes through the piston and the flange O ring area, so that the resistance is higher.
Because the cylinder is heavier and needs to provide vertical upward force for hoisting, the cylinder needs axial force for installing the piston, but the hoisting is difficult to apply large, continuous and uniform axial force. The original installation mode is that a piston and a piston rod of the pneumatic power device are horizontally placed and positioned, a traveling crane is used for lifting a cylinder to a position concentric with a piston shaft (the cylinder cannot be automatically positioned due to difficult adjustment), a sleeper is placed on the outer side of the cylinder, a knocking wrench is used for knocking the sleeper, and the cylinder moves towards the direction of the piston shaft after being stressed; because the knocking is instantaneous force and the clearance between the outer ring of the piston and the inner wall of the cylinder is small, the deformation of the piston and the O-ring of the flange seal is about 2mm, and the piston can rebound rapidly without continuous compression. The higher work responsible person of experienced or skill level, the completion cylinder centering that can be fine, the dynamics of knocking and the direction of control cylinder installation simultaneously to the risk of falling of accuse cylinder, to new man or the people that do not have relevant work experience, difficultly accomplishes cylinder centering and installation, the risk that can't control the cylinder damage simultaneously comprehensively. Therefore, the original installation of the cylinder is difficult, the maintenance efficiency is affected, and even the cylinder falls and is damaged due to uneven stress caused by improper operation.
The utility model discloses a not enough of existence improves in the practice more than, and the material is slim and graceful, simple structure, easy and simple to handle, and the cylinder is automatic to be looked for when can making the cylinder installation and is taken one's place, and each position atress is even, and the sleeve that can not the atress inequality cause sinks, damage such as O ring, cylinder and piston reduces equipment and damages the risk, reduces artifical technical skill requirement simultaneously, provides the technical barrier for reducing the people because of the error, improves the installation effectiveness, reduction of erection time, reduction unnecessary resource preparation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above technical problem, provide a piston cylinder mounting tool for pneumatic valve of nuclear power plant.
The utility model provides a technical scheme as follows:
the utility model provides a piston cylinder mounting tool for pneumatic valve of nuclear power plant for install the cylinder sleeve on the cylinder piston, the piston cylinder includes the cylinder flange, piston cylinder mounting tool includes balanced flange and pull rod, the pull rod connect in the cylinder flange with between the balanced flange, the balanced flange includes direction boss, balanced flange body and piston shaft guide, the direction boss sets up balanced flange body bottom, the piston shaft guide is seted up balanced flange center is run through the direction boss with balanced flange body.
The utility model provides an among the piston cylinder mounting tool for pneumatic valve of nuclear power plant, still include pull rod nut, the pull rod includes the pull rod body and sets up the stay bolt at pull rod body both ends, the stay bolt passes through pull rod nut respectively with the cylinder flange with the balance flange body is fixed.
The utility model provides an among the piston cylinder mounting tool for pneumatic valve of nuclear power plant, be equipped with the through-hole on the balanced flange body.
The utility model provides an among the piston cylinder mounting tool for pneumatic valve of nuclear power plant, the balance flange with the pull rod adopts polytetrafluoroethylene to make.
The utility model discloses a piston cylinder mounting tool for pneumatic valve of nuclear power plant has following beneficial effect: by using the mounting tool provided by the utility model, the position of the cylinder is adjusted by the crane according to the position of the balance flange, and the cylinder, the piston and the piston shaft are automatically centered and kept concentric; when the tool is used, the pull rod bolts are uniformly and symmetrically rotated, the balance flange pushes the cylinder sleeve to slowly sleeve the piston, the piston and the flange O ring deform under uniform and continuous force, the piston and the cylinder flange boss completely enter the sleeve and are in place, and the installation of the piston sleeve of the pneumatic power device is completed; compared with the original installation mode, the automatic centering and positioning device is simple and convenient to operate, the air cylinder can be automatically centered and positioned when the air cylinder is installed, all parts are uniformly stressed, sleeve sinking, O-ring, air cylinder, piston and other damages caused by nonuniform stress are avoided, the equipment damage risk is reduced, the requirement on manual skill is lowered, a technical barrier is provided for reducing human errors, the installation efficiency is improved, the construction period is shortened, and unnecessary resource preparation is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:
FIG. 1 is a block diagram of a piston cylinder installation tool for a nuclear power plant pneumatic valve provided by the present invention;
fig. 2 is a cross-sectional view of the counter balance flange shown in fig. 1.
Detailed Description
The novel technical problem that will solve of this use is: the AW40SS series pneumatic power device is applied to a CEX006VL water inlet isolation valve of a deaerator; the valve has large isolation influence, if a large amount of air leakage occurs in an air cylinder of the pneumatic power device, the closing torque of the pneumatic power device is insufficient, the valve of the unit is mistakenly closed, the deaerator loses water supply, the water level of the evaporator is further reduced, and the unit is stopped and stopped; if a large amount of air leakage of an air cylinder of the pneumatic power device occurs during starting, the closing torque of the pneumatic power device is insufficient, a valve cannot be opened, water cannot be supplied to a deaerator, and the machine cannot be started; therefore, there is a need for a new cylinder installation tool that can reduce manual skill requirements, provide a technical barrier to reduce human error, improve installation efficiency, reduce construction time, and reduce unnecessary resource preparation.
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Exemplary embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
FIG. 1 is a block diagram of a piston cylinder installation tool for a nuclear power plant pneumatic valve provided by the present invention; fig. 2 is a cross-sectional view of the counter balance flange shown in fig. 1. As shown in fig. 1 and 2, the utility model provides a piston cylinder mounting tool for pneumatic valve of nuclear power plant for install the cylinder sleeve on the cylinder piston, the piston cylinder includes cylinder flange 1, piston cylinder mounting tool includes balanced flange, pull rod 5 and pull rod nut 6, pull rod 5 connect in cylinder flange 1 with between the balanced flange, the balanced flange includes direction boss 2, balanced flange body 3 and piston shaft guide 4, direction boss 2 sets up balanced flange body 3 bottom, piston shaft guide 4 sets up balanced flange center is run through direction boss 2 with balanced flange body 3. The balance flange body 3 is provided with a through hole, the pull rod 5 comprises a pull rod body and pull rod bolts arranged at two ends of the pull rod body, and the pull rod bolts are fixed with the cylinder flange 1 and the balance flange body 3 through threaded holes respectively through the pull rod nuts 6. All the components are made of polytetrafluoroethylene, and the pull rod can be made of high-strength materials according to the weight of the air cylinder.
During the use, hoist cylinder sleeve to cylinder piston coaxial position, install pull rod one end to former cylinder flange 1, with the balance flange installation to the pull rod other end, the direction boss entering cylinder sleeve of balance flange, pull rod both sides installation nut, the piston shaft passes the piston shaft guide of balance flange, accomplishes the instrument installation. The position of the cylinder is adjusted through a crane according to the position of the balance flange, and the cylinder, the piston and the piston shaft are automatically centered and kept concentric; when the tool is used, the pull rod bolts are uniformly and symmetrically rotated, the balance flange pushes the cylinder sleeve to slowly sleeve the piston, the piston and the flange O ring are deformed by uniform and continuous force, the piston and the guide boss completely enter the sleeve and are in place, and the installation of the piston sleeve of the pneumatic power device is completed. Compared with the original installation mode, the automatic centering and positioning device is simple and convenient to operate, the air cylinder can be automatically centered and positioned when the air cylinder is installed, all parts are uniformly stressed, sleeve sinking, O-ring, air cylinder, piston and other damages caused by nonuniform stress are avoided, the equipment damage risk is reduced, the requirement on manual skill is lowered, a technical barrier is provided for reducing human errors, the installation efficiency is improved, the construction period is shortened, and unnecessary resource preparation is reduced.
The utility model provides a piston cylinder mounting tool for pneumatic valve of nuclear power plant has following advantage:
1. the air cylinder can be automatically centered and positioned by using the tool.
2. The convenient piston type cylinder mounting tool operated by using a common ratchet wrench can enable the cylinder to be stressed uniformly.
3. The material is light, the structure is simple and the operation is convenient.
4. The tool reduces the risk of equipment damage and guarantees the maintenance quality.
5. The use of this tool reduces manual skill and experience requirements, provides a technical barrier and reduces human error.
6. The installation efficiency is improved, the overhaul period is shortened, the labor and material cost is reduced, and the resources are saved.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
Claims (4)
1. The utility model provides a piston cylinder mounting tool for pneumatic valve of nuclear power plant for install the cylinder sleeve on the cylinder piston, the piston cylinder includes cylinder flange (1), its characterized in that, piston cylinder mounting tool includes balanced flange and pull rod (5), pull rod (5) connect in cylinder flange (1) with between the balanced flange, the balanced flange includes direction boss (2), balanced flange body (3) and piston axle guide (4), direction boss (2) set up balanced flange body (3) bottom, piston axle guide (4) are seted up balance flange center and are run through direction boss (2) with balanced flange body (3).
2. The piston cylinder mounting tool for a pneumatic valve in a nuclear power plant as claimed in claim 1, further comprising a tie rod nut (6), wherein the tie rod (5) comprises a tie rod body and tie rod bolts arranged at two ends of the tie rod body, and the tie rod bolts are respectively fixed with the cylinder flange (1) and the balance flange body (3) through the tie rod nut (6).
3. Piston cylinder mounting tool for pneumatic valves of nuclear power plants according to claim 2, characterized in that said balancing flange body (3) is provided with through holes.
4. Piston cylinder installation tool for pneumatic valves of nuclear power plants, according to claim 1, characterized in that said balancing flange and said tie rod (5) are made of teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273042.3U CN211890650U (en) | 2020-03-06 | 2020-03-06 | Piston type cylinder mounting tool for pneumatic valve of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273042.3U CN211890650U (en) | 2020-03-06 | 2020-03-06 | Piston type cylinder mounting tool for pneumatic valve of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211890650U true CN211890650U (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020273042.3U Active CN211890650U (en) | 2020-03-06 | 2020-03-06 | Piston type cylinder mounting tool for pneumatic valve of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211890650U (en) |
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2020
- 2020-03-06 CN CN202020273042.3U patent/CN211890650U/en active Active
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