Correcting device for flange reverse opening in blind plate operation of large gas pipeline

Abstract

The utility model discloses a correcting device for a flange reverse opening in large-scale gas pipeline blind plate operation, and relates to the technical field of gas pipeline large-scale blind plate operation, the correcting device comprises a frame body and a telescopic piece, the first end of the frame body is used for being detachably and fixedly connected with a first flange at the position of a flange reverse opening pipeline; the fixed end of the telescopic piece is detachably and fixedly connected with the second end of the frame body, the telescopic end of the telescopic piece is used for abutting against the outer edge of a second flange at the flange reverse opening pipeline and can drive the second flange to move in the direction coinciding with the axis of the first flange, and the structure is simple, use is convenient, and the practicability is high. And the operation time prolonging caused by flange reverse opening is effectively reduced, and the labor intensity is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal gas pipeline large -scale blind plate operation technical field especially relates to a kind of correction device for large -scale coal gas pipeline blind plate operation flange reverse mouth. BACKGROUND

[0002] In metallurgical enterprises, steelmaking, ironmaking and coking process can produce coal gas, as secondary clean energy of industrial enterprise, coal gas is transported to each user by pipeline. In factory and mine production, overhaul and accident handling, stop, send coal gas operation is often needed, to protect the safety of operating personnel and equipment, blind plate operation must be carried out.

[0003] However, in actual operation, coal gas pipeline flange reverse mouth problem often appears, the reasons causing this problem include that pipeline flange is far away from support, valve is heavy, stress influence and construction quality etc. Currently, blast furnace gas, coke oven gas, converter gas and mixed gas used by steel enterprises are all flammable, explosive and toxic gases, which requires that the conveying pipeline has tightness and reliability. Once flange reverse mouth in blind plate operation, operation time is prolonged, coal gas leakage amount is increased, and the probability of accident occurrence is increased.

[0004] The existing treatment methods, such as prying flange with crowbar, knocking flange with hard object or using jack, have many risks. Prying or knocking is easy to cause personal injury accident due to improper use of tools, and sparks generated by friction and impact can also cause coal gas to ignite. Long-time coal gas leakage can easily lead to personnel coal gas poisoning, causing serious safety accidents. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of correction device for large -scale coal gas pipeline blind plate operation flange reverse mouth to solve the problems existing in the prior art, simple structure, convenient to use, effectively reduce the operation time extension caused by flange reverse mouth, effectively reduce labor intensity.

[0006] To achieve the above object, the utility model provides the following scheme:

[0007] The utility model provides a kind of correction device for large -scale coal gas pipeline blind plate operation flange reverse mouth, including: frame body and telescopic part, the first end of the frame body is used to be detachably fixedly connected with the first flange of flange reverse mouth pipeline;The fixed end of the telescopic part is detachably fixedly connected with the second end of the frame body, and the telescopic end of the telescopic part is used to abut with the outer edge of the second flange of the flange reverse mouth pipeline and can drive the second flange to the direction of the axis of the first flange.

[0008] Preferably, the first end of the frame body is an arc-shaped plate, the arc-shaped plate is used for sleeving the top of the gas pipeline connected with the first flange, the top of the arc-shaped plate is provided with a first threaded hole, and a fixing bolt is used for being threadedly connected with the first threaded hole and extending into a mounting hole in the top of the first flange to fix the arc-shaped plate and the first flange.

[0009] Preferably, the second end of the frame body is a horizontal plate, the horizontal plate is vertically and fixedly connected to the top of the arc-shaped plate, and the fixed end of the telescopic piece is vertically and fixedly connected to one end of the horizontal plate, away from the arc-shaped plate.

[0010] Preferably, the telescopic piece comprises a hydraulic cylinder body, a piston rod and a hydraulic supply piece, the hydraulic cylinder body is vertically and fixedly connected to one end of the horizontal plate, away from the arc-shaped plate, one end of the piston rod is slidably connected in the hydraulic cylinder body, one end of the piston rod extending out of the hydraulic cylinder body is used for abutting against the outer edge of the second flange, and the hydraulic supply piece is in communication with the hydraulic cylinder body to drive the piston rod to slide.

[0011] Preferably, the hydraulic supply piece comprises a high-pressure oil pipe and a manual oil pump, one end of the high-pressure oil pipe is in communication with the hydraulic cylinder body, and the other end of the high-pressure oil pipe is in communication with the manual oil pump.

[0012] Preferably, the manual oil pump is provided with a handle.

[0013] Preferably, the manual oil pump is provided with a pressure relief valve.

[0014] Preferably, the horizontal plate, away from the arc-shaped plate, is provided with a through hole, the top of the hydraulic cylinder body is provided with a second threaded hole, and a fixing screw is used for being threadedly connected with the second threaded hole through the through hole to fix the hydraulic cylinder body and the horizontal plate.

[0015] The utility model discloses relative to prior art has obtained following technical effect:

[0016] The utility model provides a kind of correction device for large-scale coal gas pipeline blind plate operation flange reverse mouth, the detachable connection of frame body and first flange, the stable support of device is ensured;Telescopic piece and the abutment design of second flange, the moving direction of second flange can be accurately controlled, can effectively drive it to move to the direction of coinciding with the first flange axis, to reach the purpose of correcting flange reverse mouth, provide reliable flange reverse mouth correction mode for large-scale coal gas pipeline blind plate operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0018] Figure 1 A structural schematic view of the present application is provided for the correction device for the flange reverse port of the large coal gas pipeline blind plate operation.

[0019] In the figure: 1, first flange; 2, second flange; 3, coal gas pipeline; 4, frame body; 5, arc plate; 6, fixing bolt; 7, fixing screw; 8, hydraulic cylinder; 9, piston rod; 10, high-pressure oil pipe; 11, hand oil pump; 12, hydraulic handle; 13, pressure relief valve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] The present application provides a correction device for the flange reverse port of the large coal gas pipeline blind plate operation, which solves the problems in the prior art, has simple structure, is convenient to use, effectively reduces the operation time caused by the flange reverse port, and effectively reduces the labor intensity.

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0023] The present application provides a correction device for the flange reverse port of the large coal gas pipeline blind plate operation, which solves the problems in the prior art, has simple structure, is convenient to use, effectively reduces the operation time caused by the flange reverse port, and effectively reduces the labor intensity. Figure 1As shown, the device comprises a frame body 4 and a telescopic piece, the first end of the frame body 4 is used for detachable fixed connection with the first flange 1 at the reverse flange pipe; the fixed end of the telescopic piece is detachably fixedly connected with the second end of the frame body 4, and the telescopic end of the telescopic piece is used for abutting against the outer edge of the second flange 2 at the reverse flange pipe and can drive the second flange 2 to move in the direction of coinciding with the axis of the first flange 1, so that the flexible installation and dismounting of the correction device on the pipe are facilitated, and the device is convenient to use in the treatment of the reverse flange at different positions. Through the detachable connection of the frame body 4 and the first flange 1, the stable support of the device is ensured; the abutting design of the telescopic piece and the second flange 2 can accurately control the moving direction of the second flange 2, and can effectively drive the second flange 2 to move in the direction of coinciding with the axis of the first flange 1, so as to achieve the purpose of correcting the reverse flange, and provide a reliable reverse flange correction method for the blind plate operation of the large gas pipeline 3.

[0024] In a preferred embodiment, the correction device for the reverse flange of the blind plate operation of the large gas pipeline further comprises a fixing bolt 6, the first end of the frame body 4 is an arc-shaped plate 5, the arc-shaped plate 5 is used for being sleeved on the top of the gas pipeline 3 connected with the first flange 1, the top of the arc-shaped plate 5 is provided with a first threaded hole, the fixing bolt 6 is used for being screwed into the first threaded hole and extending into the mounting hole in the top of the first flange 1 to fix the arc-shaped plate 5 and the first flange 1, and the design of the arc-shaped plate 5 can better fit the top profile of the gas pipeline 3, increase the contact area with the pipeline, and thus improve the stability of the installation of the frame body 4. By screwing the fixing bolt 6 through the first threaded hole of the arc-shaped plate 5 and the mounting hole in the top of the first flange 1, the firm and reliable connection of the frame body 4 and the first flange 1 is realized, so that the frame body 4 can stably support the telescopic piece to work during the reverse flange correction operation, and the connection instability does not affect the correction effect.

[0025] In a preferred embodiment, the second end of the frame body 4 is a horizontal plate, the horizontal plate is fixedly connected to the top of the arc-shaped plate 5 perpendicularly, and the fixed end of the telescopic piece is fixedly connected to the end of the horizontal plate away from the arc-shaped plate 5 perpendicularly, the horizontal plate is fixed to the top of the arc-shaped plate 5 perpendicularly, which provides a stable installation basis for the telescopic piece and ensures that the telescopic piece can be installed in the correct position and direction. The perpendicular fixed connection of the telescopic piece and the horizontal plate enables the telescopic piece to act on the second flange 2 perpendicularly during work, so as to ensure that the direction of the force applied to the second flange 2 is accurate, which is conducive to more efficiently and accurately moving the second flange 2 to the position coinciding with the axis of the first flange 1, and improves the correction accuracy.

[0026] In a preferred embodiment, the telescopic part comprises a hydraulic cylinder 8, a piston rod 9 and a hydraulic supply, the hydraulic cylinder 8 is fixedly connected with the transverse plate vertically away from the arc-shaped plate 5, one end of the piston rod 9 is slidingly connected in the hydraulic cylinder 8, the other end of the piston rod 9 is used to abut against the outer edge of the second flange 2, the hydraulic supply is in communication with the hydraulic cylinder 8 to drive the piston rod 9 to slide, the hydraulic cylinder 8, the piston rod 9 and the hydraulic supply constitute the telescopic part, and the sliding of the piston rod 9 is realized by using the hydraulic principle, so as to push the second flange 2 to move. The hydraulic drive has the characteristics of strong power and stable output, can provide sufficient power to push the relatively heavy second flange 2, and can accurately control the extension length and speed of the piston rod 9, thereby accurately controlling the moving amount and moving speed of the second flange 2, which is beneficial to more accurately correct the reverse opening of the flange.

[0027] In a preferred embodiment, the hydraulic supply comprises a high-pressure oil pipe 10 and a manual oil pump 11, one end of the high-pressure oil pipe 10 is in communication with the hydraulic cylinder 8, the other end of the high-pressure oil pipe 10 is in communication with the manual oil pump 11, the high-pressure oil pipe 10 realizes stable and reliable oil path connection between the manual oil pump 11 and the hydraulic cylinder 8, and can accurately transmit the pressure generated by the manual oil pump 11 to the hydraulic cylinder 8, so as to drive the piston rod 9 to work. The manual oil pump 11 is simple in structure and convenient to operate, does not need a complex power source, and can be flexibly controlled in size by an operator through manual operation according to actual correction requirements, so as to meet the flange reverse opening correction work in different situations.

[0028] In a preferred embodiment, the manual oil pump 11 is provided with a handle 12, the handle 12 provides a convenient force point for the operator, so that the operator can easily operate the manual oil pump 11 manually, convert mechanical energy into hydraulic energy, and thereby control the telescoping of the piston rod 9. Compared with other complex operation modes, the use of the handle 12 is more intuitive and easy to control, reduces the working difficulty of the operator, and improves the work efficiency.

[0029] In a preferred embodiment, the manual oil pump 11 is provided with a pressure relief valve 13, the pressure relief valve 13 is arranged to ensure that the pressure in the hydraulic cylinder 8 can be released in time when the device is used up or abnormal conditions occur. This not only helps to safely disassemble the parts of the device and avoids accidents caused by residual pressure, but also protects the hydraulic system from damage caused by excessive pressure, prolongs the service life of the device, and improves the safety and reliability of the device.

[0030] In a preferred embodiment, the correction device for the back of the flange of the large coal gas pipeline blind plate operation method further comprises a fixing screw 7, a through hole is arranged at one end of the horizontal plate away from the arc-shaped plate 5, a second threaded hole is arranged at the top of the hydraulic cylinder body 8, and the fixing screw 7 is used for being threadedly connected with the second threaded hole through the through hole to fix the hydraulic cylinder body 8 and the horizontal plate. In the fixing mode of the hydraulic cylinder body 8 and the horizontal plate through the fixing screw 7, the stability of the connection between the telescopic part and the frame 4 is further enhanced. During the operation of the device, the hydraulic cylinder body 8 can be ensured to be firmly installed on the horizontal plate, the hydraulic cylinder body 8 is prevented from loosening or displacement due to vibration or external force, and therefore the stability and reliability of the entire correction device are effectively ensured, so that the device can stably and reliably complete the correction work of the back of the flange.

[0031] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A correction device for the reverse end of a blind flange in a large gas pipeline, characterized in that: include: A frame, the first end of which is detachably fixed to a first flange at the flanged back pipe; The telescopic component has a fixed end that is detachably and fixedly connected to the second end of the frame. The telescopic end of the telescopic component is used to abut against the outer edge of the second flange at the flange reversal pipe and can drive the second flange to move in a direction that coincides with the axis of the first flange.

2. The correction device for the reverse end of a blind flange for large gas pipelines according to claim 1, characterized in that: It also includes fixing bolts. The first end of the frame is an arc-shaped plate, which is used to fit on the top of the gas pipeline connected to the first flange. The top of the arc-shaped plate is provided with a first threaded hole. The fixing bolt is used to thread into the first threaded hole and extend into the mounting hole on the top of the first flange to fix the arc-shaped plate to the first flange.

3. The correction device for the reverse end of a blind flange for large gas pipelines according to claim 2, characterized in that: The second end of the frame is a horizontal plate, which is vertically fixed to the top of the arc-shaped plate. The fixed end of the telescopic component is vertically fixed to the end of the horizontal plate away from the arc-shaped plate.

4. The correction device for the reverse end of a blind flange for large gas pipelines according to claim 3, characterized in that: The telescopic component includes a hydraulic cylinder, a piston rod, and a hydraulic supply component. The hydraulic cylinder is vertically and fixedly connected to the end of the horizontal plate away from the arc-shaped plate. One end of the piston rod is slidably connected to the hydraulic cylinder. The end of the piston rod extending out of the hydraulic cylinder is used to abut against the outer edge of the second flange. The hydraulic supply component communicates with the hydraulic cylinder to drive the piston rod to slide.

5. The correction device for the reverse end of a blind flange for large gas pipelines according to claim 4, characterized in that: The hydraulic supply component includes a high-pressure oil pipe and a manual oil pump. One end of the high-pressure oil pipe is connected to the hydraulic cylinder body, and the other end is connected to the manual oil pump.

6. The correction device for the reverse end of a blind flange for large gas pipelines according to claim 5, characterized in that: The manual oil pump is equipped with a handle.

7. The correction device for the reverse end of a blind flange for large gas pipelines according to claim 6, characterized in that: The manual oil pump is equipped with a pressure relief valve.

8. The correction device for the reverse end of a blind flange for large gas pipelines according to claim 7, characterized in that: It also includes a fixing screw, a through hole at the end of the horizontal plate away from the arc plate, a second threaded hole at the top of the hydraulic cylinder, and the fixing screw is used to pass through the through hole and threadedly connect with the second threaded hole to fix the hydraulic cylinder to the horizontal plate.

Images