Auxiliary cathode replacement device for plasma maintenance of power plant

Abstract

The utility model discloses a plasma maintenance cathode auxiliary replacement device for a power plant, which relates to the technical field of the power plant and comprises a vehicle body, an inner guide seat is arranged right above the vehicle body, a support arm is arranged in the inner guide seat, a distance adjusting mechanism is arranged on the outer side of the support arm, and the distance adjusting mechanism is arranged on the outer side of the vehicle body. A distance adjusting mechanism is arranged on one side of the supporting arm, the distance adjusting mechanism adjusts the inserting position of the cathode bar according to the height and depth of the horizontal equipment, the cathode bar replacement convenience is met, a clamping mechanism is arranged on the other side of the supporting arm, the clamping mechanism adjusts the clamping distance according to the diameter of the cathode bar, the cathode bars with different diameters are positioned, and the clamping distance is adjusted according to the diameter of the cathode bar. And the cathode bar is driven to be rotationally mounted. When the cathode head is replaced, the plasma cathode bar is partially inserted into the outer sleeve to be fixed, the problem that the plasma cathode head is difficult to disassemble can be conveniently solved, the outer side of the cathode bar is positioned and clamped through the clamps arranged on the two sides, and cathode bars with different diameters can be conveniently clamped and positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of power plants, in particular to a plasma maintenance cathode auxiliary replacement device for power plants. Background Art

[0002] The stable and timely operation of a power plant's plasma ignition system is crucial for low-load operation of generator sets and stable boiler combustion. The plasma cathode assembly is a consumable item with a limited operating life, requiring frequent replacement based on the operating life of the plasma ignition system.

[0003] Since the plasma cathode rod is a smooth cylindrical shape, it is inconvenient to replace the cathode head, and the replacement time is long, which delays the normal operation of the plasma ignition device. There are certain differences in the size and installation height of the horizontal ignition equipment, and it is difficult to adjust the installation equipment of the cathode rod during the use of the replacement device. Therefore, we proposed a plasma maintenance cathode replacement auxiliary device for power plants to better solve the above problems. Summary of the Invention

[0004] The purpose of the utility model is to provide a plasma maintenance cathode auxiliary replacement device for power plants to solve the above-mentioned defects caused by the prior art.

[0005] A plasma maintenance cathode auxiliary replacement device for power plants includes a vehicle body, an inner guide seat is provided directly above the vehicle body, a support arm is provided inside the inner guide seat, and a distance adjustment mechanism is provided on the outer side of the support arm. The distance adjustment mechanism adjusts the insertion position of the cathode rod according to the height and depth of the horizontal equipment to ensure the convenience of cathode rod replacement. A clamping mechanism is provided on the other side of the support arm. The clamping mechanism adjusts the clamping spacing according to the diameter of the cathode rod to meet the positioning requirements of cathode rods of different diameters and drives the cathode rod to be rotated and installed.

[0006] Preferably, the distance adjustment mechanism includes a support arm, a support plate, a transverse support arm, a guide bar and a guide rail. The top of the support arm is connected to the support plate, the top of the support plate is symmetrically provided with a guide rail, the outer side of the guide rail is connected to a guide bar, and the guide bars are symmetrically provided on both sides of the transverse support arm.

[0007] Preferably, the inner guide seat is connected to the bottom end of the support arm via an electric cylinder arranged inside.

[0008] Preferably, the guide rail is connected to one side of the transverse support arm via a guide bar connected on one side.

[0009] Preferably, the clamping mechanism includes a transverse support arm, an outer sleeve, a rolling bearing, a motor, a transverse guide rod, a spring column and a clamp, one side of the transverse support arm is connected to the rolling bearing, the outer side of the rolling bearing is connected to the outer sleeve, one end of the spring column is symmetrically arranged inside the outer sleeve, the other end of the spring column is connected to the clamp, one side of the clamp is connected to the transverse guide rod, the transverse guide rod is symmetrically connected to both sides of the outer sleeve, the motor is installed on one side of the transverse support arm, and the output end of the motor is connected to the tail end of the outer sleeve.

[0010] Preferably, the transverse support arm is connected to the outer side of the outer sleeve via a rolling bearing arranged on the outer side.

[0011] Preferably, the outer sleeve is connected to one side of the clamp via a symmetrically connected transverse guide rod.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. When replacing the cathode head, the plasma cathode rod is partially inserted into the outer sleeve for fixation, which can easily solve the problem of difficult removal of the plasma cathode head. The outer side of the cathode rod is positioned and clamped by the clamps set on both sides, which is convenient for clamping and positioning cathode rods of different diameters, speeding up the entire plasma overhaul and maintenance process, shortening the overhaul time, and increasing the effective investment time of the plasma ignition device, thus ensuring low-load stable combustion and stable operation of the unit.

[0014] 2. During use, the support arm and the support plate are lifted and lowered vertically by the electric cylinder, and the height of the cathode rod and the clamp are adjusted according to the height of the horizontal equipment, so as to facilitate the removal or installation of the cathode rod, and the two sides of the horizontal support arm are positioned by the guide bar, and the horizontal support arm and the clamp are pushed to move laterally, so as to meet the installation position of horizontal equipment and cathode rods of different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the utility model as a whole when viewed from the front.

[0016] Figure 2 This is a schematic diagram of the top view of the horizontal support arm in the present utility model.

[0017] Figure 3 It is a side view structural diagram of the outer sleeve in the present utility model.

[0018] Figure 4 This is a schematic diagram of the front cross-section structure of the support plate in the present utility model.

[0019] in:

[0020] 1. Car body; 2. Inner guide seat; 3. Support arm; 4. Distance adjustment mechanism; 5. Support plate; 6. Horizontal support arm; 7. Guide bar; 8. Outer sleeve; 9. Clamping mechanism; 10. Rolling bearing; 11. Motor; 12. Horizontal guide rod; 13. Guide rail; 14. Spring column; 15. Clamp; 16. Electric cylinder. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 4 As shown, a plasma maintenance cathode auxiliary replacement device for a power plant includes a vehicle body 1, an inner guide seat 2 is provided directly above the vehicle body 1, a support arm 3 is provided inside the inner guide seat 2, and a distance adjustment mechanism 4 is provided on the outer side of the support arm 3. The distance adjustment mechanism 4 adjusts the insertion position of the cathode rod according to the height and depth of the horizontal equipment to meet the convenience of cathode rod replacement. A clamping mechanism 9 is provided on the other side of the support arm 3, and the clamping mechanism 9 adjusts the clamping spacing according to the diameter of the cathode rod to meet the positioning of cathode rods of different diameters and drives the cathode rod to be rotated and installed.

[0023] In this embodiment, the distance adjustment mechanism 4 includes a support arm 3, a support plate 5, a transverse support arm 6, a guide bar 7 and a guide rail 13. The top of the support arm 3 is connected to the support plate 5, and the top of the support plate 5 is symmetrically provided with a guide rail 13. The outer side of the guide rail 13 is connected to the guide bar 7, and the guide bar 7 is symmetrically provided on both sides of the transverse support arm 6.

[0024] In this embodiment, the inner guide seat 2 is connected to the bottom end of the support arm 3 through an electric cylinder 16 provided inside. The electric cylinder 16 pushes the bottom end of the support arm 3, thereby dynamically adjusting the height of the support arm 3.

[0025] In this embodiment, the guide rail 13 is connected to one side of the transverse support arm 6 through a guide bar 7 connected on one side. The outer side of the guide bar 7 is positioned by the guide rail 13, thereby facilitating the sliding of the transverse support arm 6 on the outer side of the guide rail 13.

[0026] In this embodiment, the clamping mechanism 9 includes a transverse support arm 6, an outer sleeve 8, a rolling bearing 10, a motor 11, a transverse guide rod 12, a spring column 14 and a clamp 15. One side of the transverse support arm 6 is connected to the rolling bearing 10, the outer side of the rolling bearing 10 is connected to the outer sleeve 8, one end of the spring column 14 is symmetrically arranged inside the outer sleeve 8, the other end of the spring column 14 is connected to the clamp 15, one side of the clamp 15 is connected to the transverse guide rod 12, the transverse guide rod 12 is symmetrically connected to both sides of the outer sleeve 8, the motor 11 is installed on one side of the transverse support arm 6, and the output end of the motor 11 is connected to the tail end of the outer sleeve 8.

[0027] In this embodiment, the transverse support arm 6 is connected to the outer side of the outer sleeve 8 through a rolling bearing 10 provided on the outer side. The outer side of the outer sleeve 8 is positioned by the rolling bearing 10 to prevent the outer sleeve 8 from being offset during rotation.

[0028] In this embodiment, the outer sleeve 8 is connected to one side of the clamp 15 via a symmetrically penetrating transverse guide rod 12 , and the clamp 15 is guided and positioned by the transverse guide rod 12 .

[0029] The practical application of this plasma maintenance cathode auxiliary replacement device for power plants includes the following work contents:

[0030] Step 1: During the replacement process, first, according to the height of the horizontal equipment, the operator opens the electric cylinder 16 and pushes the bottom end of the support arm 3 through the electric cylinder 16, thereby dynamically adjusting the height of the support arm 3 and adjusting the height of the clamp 15 at the same time. Then, the horizontal support arm 6 is pushed to slide on the outside of the guide rail 13 through the guide strips 7 provided on both sides, and the position of the horizontal support arm 6 is adjusted so that the outer sleeve 8 provided on one side of the horizontal support arm 6 is wrapped with the outside of the cathode rod;

[0031] Step 2: When the cathode rod is inserted into the outer sleeve 8, the clamp 15 moves outward according to the diameter of the electric rod, and the spring columns 14 provided on both sides are used to perform corresponding expansion and contraction processing. At the same time, the transverse guide rod 12 is used to move outside the outer sleeve 8, and then the clamps 15 provided on both sides are used to wrap the outside of the cathode rod. According to the length of the cathode rod, the cathode rod is clamped by two groups or one group of clamps 15;

[0032] Step 3: The operator can then remove the bolts connecting the bottom end of the cathode rod and the ignition device, and then turn on the motor 11 to drive one end of the outer sleeve 8 to rotate. The clamp 15 provided on the outside of the outer sleeve 8 drives the cathode rod to rotate, thereby separating the cathode rod from the device. At the same time, the rolling bearing 10 is used to limit the outer side of the outer sleeve 8 and rotate it.

[0033] Step 4: The operator then pulls the horizontal support arm 6 in the opposite direction. The horizontal support arm 6 slides on the outside of the guide rail 13 through the guide bars 7 set on both sides, and the electrode rod is taken out from the inside of the horizontal equipment. The new electrode rod is then inserted into the inside of the outer sleeve 8. The outer side of the electrode rod is clamped by the clamp 15 set inside the outer sleeve 8, and the new electrode rod is then inserted into the inside of the equipment. The outer sleeve 8 and the electrode rod are driven to rotate by the motor 11, and the electrode rod is assembled with the equipment.

[0034] Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A cathode auxiliary replacement device for plasma maintenance in power plants, characterized by: The invention comprises a vehicle body (1), an inner guide seat (2) is arranged directly above the vehicle body (1), a support arm (3) is arranged inside the inner guide seat (2), a distance adjustment mechanism (4) is arranged on the outside of the support arm (3), the distance adjustment mechanism (4) adjusts the insertion position of the cathode rod according to the height and depth of the horizontal equipment, so as to meet the convenience of cathode rod replacement, and a clamping mechanism (9) is arranged on the other side of the support arm (3), the clamping mechanism (9) adjusts the clamping distance according to the diameter of the cathode rod, so as to meet the positioning of cathode rods of different diameters, and drives the cathode rod to be rotated and installed.

2. The plasma maintenance cathode auxiliary replacement device for a power plant according to claim 1, characterized in that: The distance adjustment mechanism (4) comprises a support arm (3), a supporting plate (5), a transverse supporting arm (6), a guide bar (7) and a guide rail (13); the top end of the support arm (3) is connected to the supporting plate (5); the top end of the supporting plate (5) is symmetrically provided with a guide rail (13); the outer side of the guide rail (13) is connected to a guide bar (7); and the guide bar (7) is symmetrically provided on both sides of the transverse supporting arm (6).

3. The plasma maintenance cathode auxiliary replacement device for a power plant according to claim 1, characterized in that: The inner guide seat (2) is connected to the bottom end of the support arm (3) via an electric cylinder (16) arranged inside.

4. The plasma maintenance cathode auxiliary replacement device for a power plant according to claim 2, characterized in that: The guide rail (13) is connected to one side of the transverse support arm (6) via a guide bar (7) connected on one side.

5. The plasma maintenance cathode auxiliary replacement device for a power plant according to claim 1, characterized in that: The clamping mechanism (9) includes a transverse support arm (6), an outer sleeve (8), a rolling bearing (10), a motor (11), a transverse guide rod (12), a spring column (14) and a clamp (15). One side of the transverse support arm (6) is connected to the rolling bearing (10), the outer side of the rolling bearing (10) is connected to the outer sleeve (8), one end of the spring column (14) is symmetrically arranged inside the outer sleeve (8), the other end of the spring column (14) is connected to the clamp (15), one side of the clamp (15) is connected to the transverse guide rod (12), the transverse guide rod (12) is symmetrically connected to both sides of the outer sleeve (8), the motor (11) is installed on one side of the transverse support arm (6), and the output end of the motor (11) is connected to the tail end of the outer sleeve (8).

6. The plasma maintenance cathode auxiliary replacement device for a power plant according to claim 4, characterized in that: The transverse supporting arm (6) is connected to the outer side of the outer sleeve (8) via a rolling bearing (10) arranged on the outer side.

7. The plasma maintenance cathode auxiliary replacement device for a power plant according to claim 5, characterized in that: The outer sleeve (8) is connected to one side of the clamp (15) via a symmetrically connected transverse guide rod (12).

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