Dismounting tool for high-pressure control valve of thermal power plant

Abstract

The utility model discloses a thermal power plant high-pressure control valve dismounting tool, and relates to the technical field of door cover dismounting tools. Comprising a shell, a connecting mechanism and a dismounting mechanism are arranged outside the shell, the dismounting mechanism comprises a fixing cylinder, the fixing cylinder is arranged at one end of the exterior of the shell, and a spring is fixedly connected to the bottom end of the interior of the fixing cylinder. The fixing barrel is installed at one end of the outer portion of the shell, the spring is fixedly connected to the bottom end of the interior of the fixing barrel, the gasket is fixedly connected to the top end of the spring, the matched cross screwdriver is inserted into the fixing barrel, and the multiple evenly-distributed insertion holes are formed in one side of the outer portion of the cross screwdriver and one side of the outer portion of the fixing barrel. The cross screwdriver and the fixing cylinder are connected with matched bolts in an inserted mode through the inserting holes, the bolts are inserted into the different inserting holes, the length of the cross screwdriver can be adjusted, screws at different positions can be detached conveniently, and therefore the detection and maintenance efficiency of the high-pressure control valve of the thermal power plant is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door cover disassembly tools, in particular to a high-voltage regulating valve disassembly tool for a thermal power plant. Background Art

[0002] Although the speed regulating valve is made of heat-resistant metal, the metal is affected by high-temperature and high-pressure steam and under the action of long-term alternating stress, the strength and life of its components are greatly tested. The speed regulating steam valve switches back and forth with the load change, and the valve stem and its steam seal sleeve are eroded by the airflow and wear each other, and the gap between the two increases; the main valve disc and its valve seat, the expected valve and its valve seat collide, causing the sealing line to deform and the stroke to increase; the bolts connecting the valve cover and the valve seat are subjected to pre-tightening force and alternating stress under high temperature, and the metal structure undergoes many changes and the strength is greatly weakened; for the safety and stability of the unit, regular disassembly inspection, maintenance or replacement is required.

[0003] A special tool for disassembling a high-pressure regulating valve cover with publication number CN217620317U has the following defects during use:

[0004] In the process of disassembling the high-voltage regulating valve screw of a thermal power plant, a screwdriver is needed. Since the existing screwdriver cannot be adjusted in length according to the disassembly position during actual use, the disassembly efficiency of the high-voltage regulating valve screw of the thermal power plant is reduced. Therefore, there is an urgent need for a thermal power plant high-voltage regulating valve disassembly tool that is convenient for adjusting the length of the screwdriver. Utility Model Content

[0005] The utility model aims to provide a high-voltage regulating valve disassembly tool for a thermal power plant to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal power plant high-voltage regulating valve disassembly tool, comprising a shell, the outside of which is provided with a connecting mechanism and a disassembly mechanism, the disassembly mechanism comprising a fixing cylinder, the fixing cylinder being arranged at one end of the outside of the shell, the inner bottom end of the fixing cylinder being fixedly connected with a spring, the top end of the spring being fixedly connected with a gasket, the inside of the fixing cylinder being plugged with a matching plum blossom screwdriver, a plurality of evenly distributed plug-in holes are provided on one side of the outside of the plum blossom screwdriver and the fixing cylinder, the plum blossom screwdriver and the fixing cylinder being plugged with matching bolts through the plug-in holes, the other end of the bolt being threadedly connected with a nut, the plum blossom screwdriver and the fixing cylinder being threadedly fastened with the bolt and the nut.

[0007] Preferably, a plurality of evenly distributed thread grooves are formed on one end of the outer wall of the shell opposite to the fixing cylinder, and the connecting mechanism comprises a threaded cover, which is threadedly connected to the shell via the threaded grooves.

[0008] Preferably, a connector is installed at one end of the outer wall of the threaded cover away from the fixing cylinder, an electric wire is installed on the threaded cover through the connector, an end of the electric wire away from the threaded cover is electrically connected to a plug, and a fixing mechanism is installed on the outer wall of the electric wire.

[0009] Preferably, the fixing mechanism includes a connecting plate, the inner wall of the connecting plate is in contact with the outer wall of the electric wire, and a belt and a leather strip are fixedly connected to opposite sides of the outer wall of the connecting plate, a buckle is fixedly connected to the outer side of the end where the belt and the leather strip are in contact, a plurality of evenly distributed tooth blocks are arranged on the inner side of the end where the leather strip and the belt are in contact, and a plurality of evenly distributed tooth grooves are arranged on the side of the buckle close to the belt, and the leather strip and the belt are wound around and fixed by being engaged with each other through the tooth grooves and tooth blocks of the buckle.

[0010] Preferably, a motor is installed inside the shell near one end of the fixing tube, the output end of the motor passes through the outer wall of the shell and is fixed to one end outside the fixing tube, and a switch button is installed on one side of the outer wall of the shell near the motor.

[0011] Preferably, a matching partition is installed inside the shell, one side of the partition is in contact with one side of the outer wall of the motor, the shell is divided into two chambers by the partition, and a plurality of evenly distributed batteries are installed in the chamber inside the shell away from the motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The thermal power plant high-voltage regulating valve disassembly tool comprises a fixing cylinder installed at one end of the outer shell, a connecting spring fixedly connected to the inner bottom end of the fixing cylinder, a connecting gasket fixedly connected to the top end of the spring, a matching plum blossom screwdriver inserted in the fixing cylinder, a plurality of evenly distributed plugging holes are opened on one side of the plum blossom screwdriver and the outer side of the fixing cylinder, matching bolts are plugged into the plum blossom screwdriver and the fixing cylinder through the plugging holes, the bolts are plugged at different plugging holes, the length of the plum blossom screwdriver can be adjusted, so as to facilitate the disassembly of screws at different positions, thereby improving the detection and maintenance efficiency of the high-voltage regulating valve of the thermal power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a high-voltage regulating valve disassembly tool for a thermal power plant according to the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model of a thermal power plant high-voltage regulating valve removal tool;

[0016] Figure 3 It is a structural schematic diagram of the connecting mechanism of the high-voltage regulating valve disassembly tool for thermal power plants of the utility model;

[0017] Figure 4 This is a structural schematic diagram of a fixing mechanism for a high-voltage regulating valve disassembly tool for a thermal power plant according to the utility model;

[0018] Figure 5 The utility model is a structural schematic diagram of a disassembly mechanism of a high-voltage regulating valve disassembly tool for a thermal power plant.

[0019] In the figure: 1. casing; 2. switch button; 3. disassembly mechanism; 301. fixing cylinder; 302. plum blossom screwdriver; 303. plug hole; 304. bolt; 305. nut; 306. spring; 307. gasket; 4. connecting mechanism; 41. threaded cover; 42. connector; 43. wire; 44. fixing mechanism; 441. belt; 442. leather strip; 443. buckle; 444. connecting plate; 45. plug; 5. partition; 6. battery; 7. motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Although the speed regulating valve is made of heat-resistant metal, the metal is affected by high-temperature and high-pressure steam, and under the action of long-term alternating stress, the strength and life of its components are greatly tested. The speed regulating steam valve switches back and forth with the load change, and the valve stem and its steam seal sleeve are eroded by the airflow and wear each other, and the gap between the two increases; the main valve disc and its valve seat, and the expected valve and its valve seat collide, causing the sealing line to deform and the stroke to increase; the bolts connecting the valve cover and the valve seat are subjected to pre-tightening force, and the metal structure undergoes many changes under the action of alternating stress at high temperature, and the strength is greatly weakened; for the safety and stability of the unit, regular disassembly inspection is required. , repair or replacement, the application is to install a fixing cylinder at one end of the outer surface of the shell, fix a connecting spring at the bottom end of the inner part of the fixing cylinder, fix a connecting gasket at the top of the spring, and insert a matching plum blossom screwdriver into the interior of the fixing cylinder, and to open a plurality of evenly distributed plug-in holes on one side of the plum blossom screwdriver and the outer part of the fixing cylinder, and the plum blossom screwdriver and the fixing cylinder are plugged with matching bolts through the plug-in holes. The bolts are inserted in different plug-in holes, and the length of the plum blossom screwdriver can be adjusted to facilitate the removal of screws at different positions, thereby improving the detection and maintenance efficiency of high-voltage regulating valves in thermal power plants.

[0022] like Figure 1-Figure 5As shown, the utility model provides a technical solution: a thermal power plant high-voltage regulating valve disassembly tool, including a shell 1, including the shell 1, the outer portion of the shell 1 is provided with a connecting mechanism 4 and a disassembly mechanism 3, the disassembly mechanism 3 includes a fixing cylinder 301, the fixing cylinder 301 is arranged at one end of the outer portion of the shell 1, the inner bottom end of the fixing cylinder 301 is fixedly connected with a spring 306, the top end of the spring 306 is fixedly connected with a gasket 307, the inner portion of the fixing cylinder 301 is plugged with a matching plum blossom screwdriver 302, the plum blossom screwdriver 302 and one side of the outer portion of the fixing cylinder 301 are provided with a plurality of evenly distributed plugging holes 303, the plum blossom screwdriver 302 and the fixing cylinder 301 are plugged with matching bolts 304 through the plugging holes 303, the other end of the bolt 304 is threadedly connected with a nut 305, the plum blossom screwdriver 30 2 and the fixing cylinder 301 are threadedly fastened by bolts 304 and nuts 305. The fixing cylinder 301 is installed at one end of the outer side of the housing 1, a spring 306 is fixedly connected to the bottom end of the fixing cylinder 301, and a gasket 307 is fixedly connected to the top of the spring 306. A matching plum blossom screwdriver 302 is plugged into the fixing cylinder 301. A plurality of evenly distributed plug holes 303 are opened on one side of the plum blossom screwdriver 302 and the outer side of the fixing cylinder 301. The plum blossom screwdriver 302 and the fixing cylinder 301 are plugged with matching bolts 304 through the plug holes 303. The bolts 304 are plugged into different plug holes 303. The length of the plum blossom screwdriver 302 can be adjusted to facilitate the removal of screws at different positions, thereby improving the detection and maintenance efficiency of the high-voltage regulating valve of the thermal power plant.

[0023] A plurality of evenly distributed thread grooves are formed on one end of the outer wall of the housing 1 opposite to the fixing tube 301 . The connecting mechanism 4 includes a threaded cover 41 , which is threadedly connected to the housing 1 via the threaded grooves.

[0024] A connector 42 is installed at one end of the outer wall of the threaded cover 41 away from the fixing tube 301 , and a wire 43 is installed on the threaded cover 41 through the connector 42 . The end of the wire 43 away from the threaded cover 41 is electrically connected to a plug 45 , and a fixing mechanism 44 is installed on the outer wall of the wire 43 .

[0025] The fixing mechanism 44 includes a connecting plate 444, the inner wall of the connecting plate 444 is in contact with the outer wall of the electric wire 43, and the opposite sides of the outer wall of the connecting plate 444 are respectively fixedly connected with a belt 441 and a leather strip 442, and the outer side of the contacting end of the belt 441 and the leather strip 442 is fixedly connected with a buckle 443, and the inner side of the contacting end of the leather strip 442 and the belt 441 is provided with a plurality of evenly distributed tooth blocks, and the inner side of the buckle 443 close to the belt 441 is provided with a plurality of evenly distributed tooth grooves, and the leather strip 442 and the belt 441 are connected by the tooth grooves and tooth blocks of the buckle 443 to wrap around and fix the electric wire 43.

[0026] A motor 7 is installed at one end of the housing 1 near the fixed cylinder 301 , and the output end of the motor 7 passes through the outer wall of the housing 1 and is fixed to one end outside the fixed cylinder 301 . A switch button 2 is installed on one side of the outer wall of the housing 1 near the motor 7 .

[0027] A matching partition 5 is installed inside the shell 1, one side of the partition 5 is in contact with one side of the outer wall of the motor 7, and the shell 1 is divided into two chambers by the partition 5. A plurality of evenly distributed batteries 6 are installed in the chamber inside the shell 1 away from the motor 7.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A high-voltage regulating valve disassembly tool for a thermal power plant, comprising a housing (1), characterized in that: The outer portion of the housing (1) is provided with a connecting mechanism (4) and a disassembling mechanism (3). The disassembling mechanism (3) comprises a fixing cylinder (301). The fixing cylinder (301) is provided at one end of the outer portion of the housing (1). The inner bottom end of the fixing cylinder (301) is fixedly connected to a spring (306). The upper end of the spring (306) is fixedly connected to a gasket (307). A matching plum blossom screwdriver (302) is inserted into the inner portion of the fixing cylinder (301). A plurality of evenly distributed plug holes (303) are provided on one side of the exterior of the plum blossom screwdriver (302) and the fixing cylinder (301); the plum blossom screwdriver (302) and the fixing cylinder (301) are plugged with matching bolts (304) through the plug holes (303); a nut (305) is threadedly connected to the other end of the bolt (304); and the plum blossom screwdriver (302) and the fixing cylinder (301) are threadedly fastened together through the bolts (304) and the nuts (305).

2. A thermal power plant high-voltage regulating valve disassembly tool according to claim 1, characterized in that: A plurality of evenly distributed thread grooves are provided at one end of the outer wall of the housing (1) opposite to the fixing cylinder (301), and the connecting mechanism (4) comprises a threaded cover (41), wherein the threaded cover (41) is threadedly connected to the housing (1) via the threaded grooves.

3. A thermal power plant high-voltage regulating valve disassembly tool according to claim 2, characterized in that: A connector (42) is installed at one end of the outer wall of the threaded cover (41) away from the fixing cylinder (301); an electric wire (43) is installed on the threaded cover (41) through the connector (42); an end of the electric wire (43) away from the threaded cover (41) is electrically connected to a plug (45); and a fixing mechanism (44) is installed on the outer wall of the electric wire (43).

4. A thermal power plant high-voltage regulating valve disassembly tool according to claim 3, characterized in that: The fixing mechanism (44) comprises a connecting plate (444), the inner wall of the connecting plate (444) being in contact with the outer wall of the electric wire (43), the outer wall of the connecting plate (444) being fixedly connected with a belt (441) and a leather strap (442) on opposite sides, the outer side of the contacting end of the belt (441) and the leather strap (442) being fixedly connected with a buckle (443), the inner side of the contacting end of the leather strap (442) and the belt (441) being provided with a plurality of evenly distributed tooth blocks, the inner side of the buckle (443) being provided with a plurality of evenly distributed tooth grooves on the side close to the belt (441), the leather strap (442) and the belt (441) being connected with each other by the tooth grooves and tooth blocks of the buckle (443) to wrap around and fix the electric wire (43).

5. A thermal power plant high-voltage regulating valve disassembly tool according to claim 1, characterized in that: A motor (7) is installed at one end of the interior of the housing (1) close to the fixed cylinder (301); an output end of the motor (7) passes through the outer wall of the housing (1) and is fixed to one end outside the fixed cylinder (301); and a switch button (2) is installed on one side of the outer wall of the housing (1) close to the motor (7).

6. A thermal power plant high-voltage regulating valve disassembly tool according to claim 5, characterized in that: A matching partition (5) is installed inside the shell (1), one side of the partition (5) is in contact with one side of the outer wall of the motor (7), the shell (1) is divided into two chambers by the partition (5), and a plurality of evenly distributed storage batteries (6) are installed in the chamber inside the shell (1) away from the motor (7).

Images