Water seal cylinder device for low-level water tank of steam turbine of thermal power plant

Abstract

The utility model discloses a thermal power plant steam turbine low level water tank water seal cylinder device which comprises a main body assembly, a water seal cylinder body, a connecting disc, a sleeve rod, a sliding rod and a limiting piece, the connecting disc is arranged on the outer side of the water seal cylinder body, the sleeve rod is fixed on the outer side of the connecting disc, the sliding rod slides on the inner wall of the sleeve rod, and the limiting piece is arranged on the inner wall of the sleeve rod. The buffer device has the advantages that the buffer device can be conveniently and rapidly disassembled by arranging the main body assembly, when the buffer device is damaged, the buffer device can be disassembled for maintenance, the whole set of buffer device is prevented from being replaced, the working efficiency is improved, meanwhile, material waste is avoided, and the buffer device is convenient to use. By arranging the buffering assembly, the water seal cylinder can be conveniently buffered in the working process, the situation that an existing water seal cylinder is directly installed on a steam turbine, no damping and cushioning measures exist, and consequently the water seal cylinder is loosened is avoided, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power plants, in particular to a water seal cylinder device for a low-level water tank of a steam turbine in a thermal power plant. Background Art

[0002] A thermal power plant, referred to as a thermal power plant, is a factory that uses coal, oil, and natural gas as fuel to produce electricity. Its basic production process is: the fuel burns in the boiler to heat water to generate steam, converting the chemical energy of the fuel into thermal energy, and the steam pressure drives the turbine to rotate, converting thermal energy into mechanical energy, and then the turbine drives the generator to rotate, converting mechanical energy into electrical energy. During the use of the steam turbine in the power plant, the low-level water flows into the low-level water tank through the manifold. The low-level water that passes the test is pumped into the drain tank for standby through the low-level water pump. The Chinese patent application number is: 202120394138.X, a water seal cylinder device for the low-level water tank of a steam turbine in a thermal power plant, and its beneficial effects are: The water seal cylinder device for the low-level water tank of a steam turbine in a thermal power plant of the utility model can detect the temperature and liquid level height in the water seal cylinder respectively through the temperature sensor and the liquid level sensor on the bottom detection plate of the water seal cylinder. The staff can understand the temperature and liquid level in the water seal cylinder by observing the display screen. When the liquid level in the water seal cylinder exceeds the normal range, the single chip computer transmits a signal to the solenoid valve, the solenoid valve is closed, and water is stopped from entering the water seal cylinder to prevent the water in the water seal cylinder from overflowing. However, the above case does not have the function of buffering the water seal cylinder. Since the steam turbine will continuously vibrate during operation, the water seal cylinder is mostly directly installed on the steam turbine, which is not convenient for shock-absorbing and cushioning treatment of the water seal cylinder. Over time, it is easy to cause the water seal cylinder to loosen, thereby affecting its use. At the same time, the existing water seal cylinder device of the low-level water tank of the steam turbine in the thermal power plant is not convenient for disassembly of the buffer equipment. When working for a long time for buffering and unloading, it will cause wear and aging of the equipment. When damage occurs, it cannot be disassembled for repair, and the whole set of equipment can only be replaced, which reduces work efficiency and wastes production materials. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the above and / or existing problems in the water seal cylinder device of the low-level water tank of the steam turbine in the existing thermal power plant, the present utility model is proposed.

[0005] Therefore, the problem to be solved by the utility model is that the prior art is not convenient for shock absorption and disassembly of the shock absorption instrument.

[0006] To solve the above technical problems, the utility model provides the following technical solutions: a water seal cylinder device for a low-level water tank of a steam turbine in a thermal power plant, comprising a main body component, including a water seal cylinder body, a connecting plate, a sleeve rod, a sliding rod and a limiter, wherein the connecting plate is arranged on the outside of the water seal cylinder body, the sleeve rod is fixed on the outside of the connecting plate, the sliding rod slides on the inner wall of the sleeve rod, and the limiter is arranged inside the sleeve rod; and a buffer component, wherein the buffer component is arranged on one side of the connecting plate, and comprises a first fixed block, a first fixed plate, a bearing plate, a second fixed block, a second fixed plate, a buffer, a sliding member and a connecting member, wherein the first fixed block is fixed to one end of the sliding rod, the first fixed plate is fixed to the bottom of the first fixed block, the bearing plate is arranged at the bottom of the first fixed plate, the second fixed block is fixed to the bottom of the bearing plate, the second fixed plate slides on the outside of the second fixed block, the buffer is arranged at the bottom of the first fixed plate, the sliding member is arranged at the top of the bearing plate, and the connecting member is arranged at the bottom of the first fixed block.

[0007] As a preferred solution of the water seal tube device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the limiting member includes a sliding tube and a sleeve, the sliding tube slides on the inner wall of the sliding rod, and the sleeve slides on the outer side of the sliding tube.

[0008] As a preferred solution of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the limiting member further includes a through hole and a slider, the through hole is opened on the inner wall of the sleeve rod, and the slider slides on the outer side of the sleeve rod.

[0009] As a preferred solution of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the buffer member includes a first connecting rod and a second connecting rod, the first connecting rod is fixed to the bottom of the first fixing plate, and the second connecting rod slides on the outside of the first connecting rod.

[0010] As a preferred solution of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the buffer component includes a sliding column and a connecting block, the sliding column is arranged on one side of the second connecting rod, and the connecting block slides on the outside of the sliding column.

[0011] As a preferred solution of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the sliding member includes a fixed frame and a fixed column, the fixed frame is fixed to the top of the bearing plate, and the fixed column is fixed to the inner wall of the fixed frame.

[0012] As a preferred solution of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the sliding member also includes a spring and a moving block, the spring is arranged on the outside of the fixed column, and the moving block slides on the outside of the fixed column.

[0013] As a preferred solution of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the connecting member includes a mounting rod and a first connecting head, the mounting rod is fixed to the inner wall of the first fixed plate, and the first connecting head slides on the outside of the mounting rod.

[0014] As a preferred solution of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the connecting member also includes a second connecting head and a mounting block, the second connecting head rotates on the inner wall of the first connecting head, and the mounting block rotates on one end of the second connecting head.

[0015] As a preferred solution of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant described in the utility model, the connecting member also includes a mounting plate and a connecting column, the mounting plate rotates on the inner wall of the second connecting head, and the connecting column rotates on the inner wall of the mounting plate.

[0016] The beneficial effects of the utility model are as follows: by arranging the main body component, the buffer device can be easily disassembled quickly. When the buffer device is damaged, it can be disassembled for repair, avoiding the replacement of the entire set of buffer equipment, improving work efficiency, and avoiding material waste. By arranging the buffer component, the water seal cylinder can be easily buffered during operation, avoiding the existing water seal cylinder being directly installed on the steam turbine without any shock-absorbing and cushioning measures, causing the water seal cylinder to loosen, thereby improving the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is the overall structural diagram of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant.

[0019] Figure 2 This is the structural diagram of the limiter parts of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant.

[0020] Figure 3 This is the structural diagram of the buffer and sliding parts of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant.

[0021] Figure 4 This is a structural diagram of the second fixed block and the second fixed plate of the water seal cylinder device of the low-level water tank of the steam turbine in a thermal power plant.

[0022] Figure 5 for Figure 4 An enlarged structural diagram of point A is shown.

[0023] Numbers in the figure: 100, main assembly; 101, water seal cylinder body; 102, connecting plate; 103, sleeve rod; 104, slide rod; 105, limiter; 105a, slide tube; 105b, sleeve tube; 105c, perforation; 105d, slider; 200, buffer assembly; 201, first fixed block; 202, first fixed plate; 203, bearing plate; 204, second fixed block; 205, second fixed plate; 206, buffer Stamping; 206a, first connecting rod; 206b, second connecting rod; 206c, sliding column; 206d, connecting block; 207, sliding member; 207a, fixed frame; 207b, fixed column; 207c, spring; 207d, moving block; 208, connecting member; 208a, mounting rod; 208b, first connecting head; 208c, second connecting head; 208d, mounting block; 208e, mounting plate; 208f, connecting column. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1

[0028] Reference Figure 1 to Figure 5 , which is the first embodiment of the utility model, provides a water seal cylinder device for a low-level water tank of a steam turbine in a thermal power plant, including a main component 100 and a buffer component 200, which can facilitate buffering of the water seal cylinder body 101 to avoid loosening due to vibration, and can also facilitate disassembly of the buffer device.

[0029] The main assembly 100 includes a water seal cylinder body 101, a connecting plate 102, a sleeve rod 103, a sliding rod 104 and a limiting member 105. The connecting plate 102 is arranged on the outside of the water seal cylinder body 101, the sleeve rod 103 is fixed on the outside of the connecting plate 102, the sliding rod 104 slides on the inner wall of the sleeve rod 103, and the limiting member 105 is arranged inside the sleeve rod 103.

[0030] By setting the water seal cylinder body 101, the flow of liquid can be facilitated and the air can be controlled at the same time. By setting the connecting plate 102, the water seal cylinder body 101 can be connected easily. By setting the sleeve rod 103, the connecting plate 102 can be connected easily. By setting the sliding rod 104, the sleeve rod 103 can be slid easily.

[0031] The buffer assembly 200 is arranged on one side of the connecting disk 102, and includes a first fixed block 201, a first fixed plate 202, a supporting plate 203, a second fixed block 204, a second fixed plate 205, a buffer member 206, a sliding member 207 and a connecting member 208. The first fixed block 201 is fixed to one end of the sliding rod 104, the first fixed plate 202 is fixed to the bottom of the first fixed block 201, the supporting plate 203 is arranged at the bottom of the first fixed plate 202, the second fixed block 204 is fixed to the bottom of the supporting plate 203, the second fixed plate 205 slides on the outside of the second fixed block 204, the buffer member 206 is arranged at the bottom of the first fixed plate 202, the sliding member 207 is arranged at the top of the supporting plate 203, and the connecting member 208 is arranged at the bottom of the first fixed block 201.

[0032] By setting the first fixed block 201, it is convenient to connect the first fixed plate 202, by setting the first fixed plate 202, it is convenient to connect the first connecting rod 206a, by setting the supporting plate 203, it is convenient to fix the fixed frame 207a, by setting the second fixed block 204, it is convenient to connect the supporting plate 203, by setting the second fixed plate 205, it is convenient to slide the second fixed block 204. It is explained here that a device for resetting the second fixed block 204 is set inside the second fixed plate 205.

[0033] Example 2

[0034] Reference Figure 2 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0035] Specifically, the limiting member 105 includes a sliding tube 105a and a sleeve 105b. The sliding tube 105a slides on the inner wall of the sliding rod 104, and the sleeve 105b slides on the outer side of the sliding tube 105a.

[0036] By providing the slide tube 105a, the through hole 105c can be limited, and by providing the sleeve 105b, the slide tube 105a can be slid. Here, a return spring for moving the slide tube 105a is provided inside the sleeve 105b.

[0037] Specifically, the limiting member 105 further includes a through hole 105 c and a sliding block 105 d . The through hole 105 c is formed on the inner wall of the sleeve rod 103 , and the sliding block 105 d slides on the outer side of the sleeve rod 103 .

[0038] By providing the through hole 105c, the sliding tube 105a can be easily limited, and by providing the slider 105d, the sleeve 105b can be easily reset.

[0039] Example 3

[0040] Reference Figure 3 and Figure 5 , which is the third embodiment of the utility model, and this embodiment is based on the first two embodiments.

[0041] Specifically, the buffer member 206 includes a first connecting rod 206a and a second connecting rod 206b. The first connecting rod 206a is fixed to the bottom of the first fixing plate 202, and the second connecting rod 206b slides on the outer side of the first connecting rod 206a.

[0042] By providing the first connecting rod 206a, the second connecting rod 206b can be easily slid, and by providing the second connecting rod 206b, the first connecting rod 206a can be easily limited.

[0043] Specifically, the buffer member 206 includes a sliding column 206c and a connecting block 206d. The sliding column 206c is disposed on one side of the second connecting rod 206b, and the connecting block 206d slides on the outer side of the sliding column 206c.

[0044] By providing the sliding column 206c, the connecting block 206d can be easily slid, and by providing the connecting block 206d, the mounting block 208d can be easily connected.

[0045] Specifically, the sliding member 207 includes a fixing frame 207 a and a fixing column 207 b . The fixing frame 207 a is fixed to the top of the carrying plate 203 , and the fixing column 207 b is fixed to the inner wall of the fixing frame 207 a .

[0046] By setting the fixing frame 207a, Kobeinian is fixed to the fixing column 207b. By setting the fixing column 207b, the spring 207c can be easily installed.

[0047] Specifically, the sliding member 207 further includes a spring 207c and a moving block 207d. The spring 207c is disposed on the outside of the fixed column 207b, and the moving block 207d slides on the outside of the fixed column 207b.

[0048] By providing the spring 207c, the moving block 207d can be easily reset, and by providing the moving block 207d, the mounting plate 208e can be easily connected.

[0049] Specifically, the connecting member 208 includes a mounting rod 208a and a first connecting head 208b. The mounting rod 208a is fixed to the inner wall of the first fixing plate 202, and the first connecting head 208b slides on the outer side of the mounting rod 208a.

[0050] By providing the mounting rod 208a, the first connecting head 208b can be easily moved, and by providing the first connecting head 208b, the second connecting head 208c can be easily rotated.

[0051] Specifically, the connecting member 208 further includes a second connecting head 208c and a mounting block 208d. The second connecting head 208c is rotated on the inner wall of the first connecting head 208b, and the mounting block 208d is rotated on one end of the second connecting head 208c.

[0052] By providing the second connecting head 208c, the mounting plate 208e can be easily rotated, and by providing the mounting block 208d, the second connecting head 208c can be easily rotated.

[0053] Specifically, the connecting member 208 further includes a mounting plate 208e and a connecting column 208f. The mounting plate 208e rotates on the inner wall of the second connecting head 208c, and the connecting column 208f rotates on the inner wall of the mounting plate 208e.

[0054] By setting the mounting plate 208e, the movable block 207d can be easily rotated, and by setting the connecting column 208f, the device on the other side of the first fixed plate 202 can be easily connected. It is explained here that this device is the same as the above-mentioned buffer instrument.

[0055] When in use, when the water seal cylinder body 101 needs to be buffered, the sleeve rod 103 is forced to drive the slide rod 104 to move, the slide rod 104 moves to drive the first fixed block 201 to move, the first fixed block 201 moves to drive the first fixed plate 202 to move, the first fixed plate 202 moves to drive the bearing plate 203 to move, the bearing plate 203 is forced to move by the first connecting rod 206a, and then the second connecting rod 206b unloads the force to achieve the effect, and at the same time, the first connecting head 208b moves to drive the second connecting head 208c to move, and the second connecting head 208c moves to drive the installation The mounting block 208d moves, and the mounting block 208d moves on the sliding column 206c, thereby unloading the force thereon to achieve a buffering effect. At the same time, the bottom is used as a fulcrum by the fixed column 207b, and is reset by the spring 207c, so that the moving block 207d and the mounting plate 208e are reset and buffered, that is, the buffering effect is achieved. When the buffering device needs to be disassembled, first remove the screws at the bottom of the second fixed plate 205, and move the slider 105d at the same time. When the slider 105d contacts the slide rod 104, it is squeezed down. At this time, move the slide rod 104 to disassemble the buffering device.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A water seal device for a low-level water tank of a steam turbine in a thermal power plant, characterized in that: include, The main body component (100) comprises a water seal cylinder body (101), a connection plate (102), a sleeve rod (103), a sliding rod (104) and a stopper (105), wherein the connection plate (102) is arranged on the outside of the water seal cylinder body (101), the sleeve rod (103) is fixed on the outside of the connection plate (102), the sliding rod (104) slides on the inner wall of the sleeve rod (103), and the stopper (105) is arranged inside the sleeve rod (103); and A buffer assembly (200), the buffer assembly (200) is arranged on one side of the connecting plate (102), comprising a first fixed block (201), a first fixed plate (202), a bearing plate (203), a second fixed block (204), a second fixed plate (205), a buffer member (206), a sliding member (207) and a connecting member (208), the first fixed block (201) being fixed to one end of the sliding rod (104), the first fixed plate (202) being fixed to the first fixed block (201) The bottom portion of the carrier plate (203) is arranged at the bottom of the first fixed plate (202), the second fixed block (204) is fixed at the bottom of the carrier plate (203), the second fixed plate (205) slides on the outside of the second fixed block (204), the buffer member (206) is arranged at the bottom of the first fixed plate (202), the sliding member (207) is arranged at the top of the carrier plate (203), and the connecting member (208) is arranged at the bottom of the first fixed block (201).

2. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 1, characterized in that: The limiting member (105) comprises a sliding tube (105a) and a sleeve (105b), wherein the sliding tube (105a) slides on the inner wall of the sliding rod (104), and the sleeve (105b) slides on the outer side of the sliding tube (105a).

3. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 2, characterized in that: The limiting member (105) further comprises a through hole (105c) and a sliding block (105d); the through hole (105c) is formed on the inner wall of the sleeve rod (103); and the sliding block (105d) slides on the outer side of the sleeve rod (103).

4. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 3, characterized in that: The buffer member (206) comprises a first connecting rod (206a) and a second connecting rod (206b), wherein the first connecting rod (206a) is fixed to the bottom of the first fixing plate (202), and the second connecting rod (206b) slides on the outer side of the first connecting rod (206a).

5. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 4, characterized in that: The buffer member (206) comprises a sliding column (206c) and a connecting block (206d), wherein the sliding column (206c) is arranged on one side of the second connecting rod (206b), and the connecting block (206d) slides on the outer side of the sliding column (206c).

6. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 5, characterized in that: The sliding member (207) comprises a fixed frame (207a) and a fixed column (207b), wherein the fixed frame (207a) is fixed to the top of the supporting plate (203), and the fixed column (207b) is fixed to the inner wall of the fixed frame (207a).

7. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 6, characterized in that: The sliding member (207) further comprises a spring (207c) and a moving block (207d), wherein the spring (207c) is arranged on the outside of the fixed column (207b), and the moving block (207d) slides on the outside of the fixed column (207b).

8. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 7, characterized in that: The connecting member (208) comprises a mounting rod (208a) and a first connecting head (208b), wherein the mounting rod (208a) is fixed to the inner wall of the first fixing plate (202), and the first connecting head (208b) slides on the outer side of the mounting rod (208a).

9. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 8, characterized in that: The connecting member (208) further comprises a second connecting head (208c) and a mounting block (208d), wherein the second connecting head (208c) is rotated on the inner wall of the first connecting head (208b), and the mounting block (208d) is rotated on one end of the second connecting head (208c).

10. The water seal device for the low-level water tank of a steam turbine in a thermal power plant according to claim 9, characterized in that: The connecting member (208) further comprises a mounting plate (208e) and a connecting column (208f), wherein the mounting plate (208e) is rotated on the inner wall of the second connecting head (208c), and the connecting column (208f) is rotated on the inner wall of the mounting plate (208e).

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