Auxiliary device for disassembling and assembling valve head of high-pressure regulating steam valve of steam turbine

Abstract

The utility model discloses a steam turbine high-pressure adjusting steam valve head dismounting auxiliary device which comprises a dismounting table, a stand column fixedly arranged on the surface of the bottom end of the dismounting table, a pushing device fixedly arranged on the surface of the top end of the dismounting table, a fixing device fixedly arranged on the surface of the top end of the pushing device, and a locking device arranged on one side of the pushing device. And the pushing plate drives the pushing block to move in the pushing seat along the guide rod until the head of the valve head is pushed to the butt joint ring. The butt joint rolling wheel can assist the valve head to be smoothly connected into the locking hoop in a butt joint mode, and accurate butt joint of the valve head is guaranteed. The fixing knob is rotated to be connected with the fixing hole. The valve head is ensured not to move accidentally in the connecting process, the safety and reliability of the device are improved, the dismounting table is pushed upwards, the dismounting table drives the telescopic rod to move to the proper height, then the positioning knob is rotated, the positioning knob is connected with the corresponding positioning hole, the height of the dismounting table is fixed, and the dismounting table is fixed. And the device can be conveniently adjusted according to different working requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steam turbine high pressure governing valve valve head dismounting, especially relates to a steam turbine high pressure governing valve valve head dismounting auxiliary device. BACKGROUND

[0002] Steam turbine is also called steam turbine engine, is a kind of rotary steam power device, high temperature and high pressure steam passes through fixed nozzle and becomes accelerated airflow and is injected onto blade, makes the rotor with blade row rotates, simultaneously does work to outside.Steam turbine is the main equipment of modern thermal power plant, is also used in metallurgical industry, chemical industry, ship power device, at present, steam turbine when using, its internal high pressure governing valve plays the role of steam turbine admission governing, regular maintenance is very important, but the valve head dismounting process is difficult, although valve head and sleeve are all provided with dismounting hole groove, but in actual dismounting process on site, because there is no force point, manpower cannot easily disassemble, especially after long-period operation of valve, on-site manpower cannot disassemble, often needs to be sent to processing factory and then disassembled after being fixed on machine tool, when responding to different types of high pressure governing valve, it needs to replace the matching parts, for this purpose, we propose a steam turbine high pressure governing valve valve head dismounting auxiliary device.

[0003] At present, the existing patent with publication number CN217020131U discloses a steam turbine high pressure governing valve valve head dismounting auxiliary device, including base frame and dismounting unit;The upper right corner of base frame is provided with a circular shelf in the notch, the outer arc surface of circular shelf is provided with evenly distributed positioning bolts, four positioning bolts are connected with valve head, the left end of valve head is provided with valve stem, the outer arc surface left end of valve head is threadedly connected with sleeve;Dismounting unit includes dismounting device and connecting rod, the dismounting device is movably inserted into the outer arc surface of sleeve through the boss, the outer arc surface of dismounting device is provided with connecting rod, the dismounting unit further includes operating cylinder, the operating cylinder is threadedly connected to the outer side end of connecting rod, and the centering unit is arranged on the right end surface of circular shelf, the right end of valve head extends to the inside of centering unit, the steam turbine high pressure governing valve valve head dismounting auxiliary device achieves the purpose of quickly disassembling or fastening valve head, although the device solves the above problems, but at the same time, the following problems appear: the height of the device cannot be adjusted, cannot be adjusted according to different work requirements, and when the device is docked, manpower is pushed, which is troublesome for workers, therefore, a new steam turbine high pressure governing valve valve head dismounting auxiliary device is needed. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a steam turbine high pressure governing valve valve head dismounting auxiliary device, which aims to overcome the problem that the height of the device cannot be adjusted, cannot be adjusted according to different work requirements, and when the device is docked, manpower is pushed, which is troublesome for workers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary device for disassembling and assembling a high-pressure regulating valve head of a steam turbine, comprising a disassembly and assembly platform, a column fixedly provided on the bottom surface of the disassembly and assembly platform, a pushing device fixedly provided on the top surface of the disassembly and assembly platform, a fixing device fixedly provided on the top surface of the pushing device, and a locking device provided on one side of the pushing device.

[0006] As a further description of the above technical solution:

[0007] The locking device includes a locking platform, a locking clamp, a locking knob, a locking rod, a docking ring, and a docking roller. A locking clamp is fixedly installed on the top surface of the locking platform, a locking knob is installed on the surface of the locking clamp, a locking rod is fixedly installed on the bottom surface of the locking knob, a docking ring is fixedly installed on one side surface of the locking clamp, and a docking roller is fixedly installed on the inner wall of the docking ring.

[0008] As a further description of the above technical solution:

[0009] The number of locking knobs and locking rods are three, and they are arranged in a circular pattern at equal intervals. The locking rods pass through the locking clamps. The number of docking rollers is four, and they are arranged in a mirror-symmetrical pattern.

[0010] As a further description of the above technical solution:

[0011] The fixing device includes a fixed base, a threaded screw, a knob, and a movable seat. A threaded screw is fixedly installed on one side of the top surface of the fixed base, a knob is fixedly installed on the top surface of the threaded screw, and a movable seat is sleeved on the outer periphery of the threaded screw.

[0012] As a further description of the above technical solution:

[0013] The movable seat and the threaded screw are connected by a matching thread. There are two threaded screws and two knobs, and their positions are mirror-symmetrical.

[0014] As a further description of the above technical solution:

[0015] The pushing device includes a pushing seat, a guide rod, a fixing hole, a pushing block, a pushing plate, and a fixing knob. The guide rod is fixedly installed on the inner wall of the pushing seat, and a fixing hole is provided on the surface of the guide rod. A pushing block is sleeved on the outer periphery of the guide rod, and a pushing plate is fixedly installed on the top surface of the pushing block. A fixing knob is provided on the top surface of the pushing plate.

[0016] As a further description of the above technical solution:

[0017] The fixed knob is positioned to correspond to the fixed hole, and the fixed knob passes through the push plate. There are two push bases, two guide rods, two fixed holes, two push blocks, and two fixed knobs, and their positions are mirror-symmetrical.

[0018] As a further description of the above technical solution:

[0019] The column includes a column body, a positioning knob, a telescopic rod, and positioning holes. A positioning knob is provided on one side surface of the column body, and a telescopic rod is provided inside the column body. Multiple positioning holes are provided on the surface of the telescopic rod.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention involves placing the valve head on the top surface of a fixed base. Then, rotating a knob drives a threaded screw to rotate. The threaded screw is connected to a movable base via threads, causing the movable base to move vertically and fix the tail end of the valve head. This design effectively prevents displacement of the valve head during the pushing process, ensuring the stability of the device.

[0022] By pushing the push plate, the push plate drives the push block to move along the guide rod within the push seat until the valve head is pushed to the docking ring. At this point, the docking roller design assists the valve head in smoothly engaging with the locking ring, ensuring accurate docking of the valve head. Rotating the fixing knob engages it with the fixing hole, thereby fixing the position of the valve head. This ensures that the valve head will not move unexpectedly during the connection process, improving the safety and reliability of the device.

[0023] By pushing the disassembly and assembly platform upwards, the platform moves the telescopic rod to a suitable height. Then, rotating the positioning knob engages with the corresponding positioning hole to fix the height of the disassembly and assembly platform, allowing the device to be easily adjusted according to different work requirements. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of an auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine, as proposed in this utility model.

[0026] Figure 2 This is a front view of the locking device structure of the auxiliary device for disassembling and assembling the valve head of the high-pressure regulating steam valve of a steam turbine, as proposed in this utility model.

[0027] Figure 3 This is a front view of the fixing device structure of the auxiliary device for disassembling and assembling the valve head of the high-pressure regulating steam valve of the steam turbine proposed in this utility model;

[0028] Figure 4 This is a side view of the structure of the pusher device of the auxiliary device for disassembling and assembling the valve head of the high-pressure regulating steam valve of the steam turbine proposed in this utility model;

[0029] Figure 5 This is a side view of the column structure of an auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine, as proposed in this utility model.

[0030] In the diagram: 1. Assembly / Disassembly platform; 2. Column; 3. Pushing device; 4. Fixing device; 5. Locking device; 501. Locking platform; 502. Locking clamp; 503. Locking knob; 504. Locking rod; 505. Connecting ring; 506. Connecting roller; 401. Fixed base; 402. Threaded screw; 403. Knob; 404. Movable seat; 301. Pushing seat; 302. Guide rod; 303. Fixing hole; 304. Pushing block; 305. Pushing plate; 306. Fixing knob; 201. Column; 202. Positioning knob; 203. Telescopic rod; 204. Positioning hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-5 One embodiment of this utility model is a valve head disassembly and assembly auxiliary device for a high-pressure regulating steam valve of a steam turbine, including a disassembly and assembly platform 1, a column 2 fixedly installed on the bottom surface of the disassembly and assembly platform 1, a pushing device 3 fixedly installed on the top surface of the disassembly and assembly platform 1, a fixing device 4 fixedly installed on the top surface of the pushing device 3, and a locking device 5 installed on one side of the pushing device 3.

[0033] The locking device 5 includes a locking platform 501, a locking clamp 502, a locking knob 503, a locking rod 504, a docking ring 505, and a docking roller 506. The locking clamp 502 is fixedly mounted on the top surface of the locking platform 501. The locking knob 503 is mounted on the surface of the locking clamp 502. The locking rod 504 is fixedly mounted on the bottom surface of the locking knob 503. The docking ring 505 is fixedly mounted on one side surface of the locking clamp 502. The docking roller 506 is fixedly mounted on the inner wall of the docking ring 505. The valve head is pushed onto the docking ring 505. The docking roller 506 is designed to assist the valve head in smoothly engaging with the locking clamp 502, ensuring accurate valve docking. Rotating the locking knob 503 drives the locking rod 504, quickly positioning the valve head in place. This design allows operators to easily install and remove the valve, reducing operation time and complexity.

[0034] There are three locking knobs 503 and three locking rods 504, which are arranged in an equidistant ring. The locking rods 504 pass through the locking clamp 502. There are four docking rollers 506, which are arranged in a mirror-symmetrical manner. The three locking knobs 503 and three locking rods 504, which are arranged in an equidistant ring, the locking rods 504, which pass through the locking clamp 502, and the four docking rollers 506, which are arranged in a mirror-symmetrical manner, improve the operability of the device.

[0035] The fixing device 4 includes a fixed base 401, a threaded screw 402, a knob 403, and a movable seat 404. The threaded screw 402 is fixedly mounted on one side of the top surface of the fixed base 401. The knob 403 is fixedly mounted on the top surface of the threaded screw 402. The movable seat 404 is sleeved around the outer periphery of the threaded screw 402. The valve head is placed on the top surface of the fixed base 401. Then, rotating the knob 403 drives the threaded screw 402 to rotate. The threaded screw 402 is connected to the movable seat 404 via threads, causing the movable seat 404 to move vertically and fix the tail end of the valve head. This design effectively prevents displacement of the valve head during the pushing process, ensuring the stability of the device.

[0036] The movable seat 404 and the threaded rod 402 are connected by a matching thread. There are two threaded rods 402 and two knobs 403, and their positions are mirror-symmetrical. The matching thread at the connection between the movable seat 404 and the threaded rod 402, and the two threaded rods 402 and two knobs 403, are mirror-symmetrically arranged to improve the practicality of the device.

[0037] The pushing device 3 includes a pushing seat 301, a guide rod 302, a fixing hole 303, a pushing block 304, a pushing plate 305, and a fixing knob 306. The guide rod 302 is fixedly installed on the inner wall of the pushing seat 301. The fixing hole 303 is provided on the surface of the guide rod 302. The pushing block 304 is sleeved on the outer periphery of the guide rod 302. The pushing plate 305 is fixedly installed on the top surface of the pushing block 304. The fixing knob 306 is provided on the top surface of the pushing plate 305. By pushing the pushing plate 305, the pushing plate 305 drives the pushing block 304 to move along the guide rod 302 within the pushing seat 301 until the valve head is pushed to the docking ring 505, which facilitates the docking and pushing of the device and improves the safety of the device.

[0038] The fixed knob 306 corresponds to the fixed hole 303, and the fixed knob 306 passes through the push plate 305. There are two push seats 301, guide rods 302, fixed holes 303, push blocks 304, and fixed knobs 306, and their positions are mirror-symmetrically arranged. The fixed knob 306 corresponds to the fixed hole 303, and the fixed knob 306 passes through the push plate 305. The number of push seats 301, guide rods 302, fixed holes 303, push blocks 304, and fixed knobs 306 are all two, and their positions are mirror-symmetrically arranged, which improves the safety of the device.

[0039] The column 2 includes a column body 201, a positioning knob 202, a telescopic rod 203, and positioning holes 204. The positioning knob 202 is provided on one side surface of the column body 201, and the telescopic rod 203 is provided inside the column body 201. The surface of the telescopic rod 203 is provided with multiple positioning holes 204. By pushing the disassembly and assembly platform 1 upward, the disassembly and assembly platform 1 drives the telescopic rod 203 to move to a suitable height. Then, the positioning knob 202 is rotated, and the positioning knob 202 connects with the corresponding positioning hole 204 to fix the height of the disassembly and assembly platform 1, so that the device can be easily adjusted according to different work requirements.

[0040] Working principle: Before using the device, push the disassembly platform 1 upwards. The disassembly platform 1 drives the telescopic rod 203 to move to a suitable height. Then, rotate the positioning knob 202. The positioning knob 202 connects with the corresponding positioning hole 204, fixing the height of the disassembly platform 1. This allows the device to be easily adjusted according to different working requirements. When using the device, place the valve head on the top surface of the fixed seat 401. Then, rotate the knob 403. The knob 403 drives the threaded screw 402. The threaded screw 402 drives the movable seat 404 to connect with the thread. The thread drives the movable seat 404 to move vertically, fixing the tail end of the valve head and preventing displacement during device pushing. To maintain device stability, push the push plate 305. The push plate 305 drives the push block 304, which moves along the guide rod 302 within the push seat 301 until the valve head is pushed into the docking ring 505. The docking roller 506 assists the valve head in engaging the locking clamp 502. After pushing to the designated position, rotate the fixing knob 306. The fixing knob 306 connects with the fixing hole 303, facilitating device docking and pushing, and improving device safety. Finally, rotate the locking knob 503. The locking knob 503 drives the locking rod 504, which quickly positions the valve head, making it easy for operators to complete disassembly and assembly.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine, comprising a disassembly and assembly platform (1), characterized in that, The bottom surface of the disassembly and assembly platform (1) is fixedly provided with a column (2), the top surface of the disassembly and assembly platform (1) is fixedly provided with a pushing device (3), the top surface of the pushing device (3) is fixedly provided with a fixing device (4), and a locking device (5) is provided on one side of the pushing device (3).

2. The auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine according to claim 1, characterized in that, The locking device (5) includes a locking platform (501), a locking clamp (502), a locking knob (503), a locking rod (504), a docking ring (505), and a docking roller (506). The locking platform (501) is fixedly provided with a locking clamp (502) on its top surface. The locking clamp (502) is provided with a locking knob (503) on its surface. The locking knob (503) is fixedly provided with a locking rod (504) on its bottom surface. The locking clamp (502) is fixedly provided with a docking ring (505) on one side surface. The docking ring (505) is fixedly provided with a docking roller (506) on its inner wall.

3. The auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine according to claim 2, characterized in that, The number of locking knobs (503) and locking rods (504) are three, and they are arranged in an equidistant ring. The locking rods (504) pass through the locking clamps (502). The number of docking rollers (506) is four, and they are arranged in a mirror-symmetrical manner.

4. The auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine according to claim 1, characterized in that, The fixing device (4) includes a fixed base (401), a threaded screw (402), a knob (403), and a movable seat (404). The threaded screw (402) is fixedly installed on one side of the top surface of the fixed base (401), and the knob (403) is fixedly installed on the top surface of the threaded screw (402). The movable seat (404) is sleeved on the outer periphery of the threaded screw (402).

5. The auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine according to claim 4, characterized in that, The movable seat (404) and the threaded rod (402) are connected by a matching thread. There are two threaded rods (402) and two knobs (403), and their positions are mirror-symmetrical.

6. The auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine according to claim 1, characterized in that, The pushing device (3) includes a pushing seat (301), a guide rod (302), a fixing hole (303), a pushing block (304), a pushing plate (305), and a fixing knob (306). The guide rod (302) is fixedly installed on the inner wall of the pushing seat (301). The fixing hole (303) is provided on the surface of the guide rod (302). The pushing block (304) is sleeved on the outer periphery of the guide rod (302). The pushing plate (305) is fixedly installed on the top surface of the pushing block (304). The fixing knob (306) is provided on the top surface of the pushing plate (305).

7. The auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine according to claim 6, characterized in that, The fixed knob (306) is located at a position corresponding to the fixed hole (303), and the fixed knob (306) passes through the push plate (305). The number of the push seat (301), guide rod (302), fixed hole (303), push block (304), and fixed knob (306) are all two, and their positions are mirror-symmetrical.

8. The auxiliary device for disassembling and assembling the valve head of a high-pressure regulating steam valve for a steam turbine according to claim 1, characterized in that, The column (2) includes a column body (201), a positioning knob (202), a telescopic rod (203), and a positioning hole (204). The positioning knob (202) is provided on one side surface of the column body (201), and the telescopic rod (203) is provided inside the column body (201). The surface of the telescopic rod (203) is provided with multiple positioning holes (204).

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