Structure for realizing automatic pressure relief of loading arm

Abstract

The utility model relates to the technical field of petrochemical engineering, and discloses a structure for realizing automatic pressure relief of a crane pipe, which comprises a crane pipe body, an anti-relief valve fixedly connected to the surface of the crane pipe body, a pneumatic valve fixedly connected to the surface of the crane pipe body, and an adjusting mechanism fixedly connected to the surface of the crane pipe body. The pressure transmitter is arranged to monitor the pressure in real time, when the pressure reaches a set value, the electric push rod stretches out and draws back to drive the movable sliding block to slide in the auxiliary sliding groove, when the movable sliding block slides, the adjusting rack fixedly connected with the surface of the movable sliding block moves along with the movable sliding block, and due to the fact that the adjusting rack is meshed with the driving gear, the driving gear is driven to rotate; due to the fact that the driving gear is fixedly connected to the surface of the pneumatic valve, opening or closing operation of the pneumatic valve is achieved, opening and closing of the pneumatic valve are automatically controlled by the adjusting mechanism in the whole pressure relief process, frequent manual intervention is not needed, manual operation errors are reduced, meanwhile, manual pressure relief is not needed, and labor intensity is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum chemical industry especially relates to realize crane pipe automatic pressure relief structure. BACKGROUND

[0002] In the petroleum chemical industry, crane pipe is the key equipment for liquid loading and unloading, and the pressure control in the pipe is crucial in the operation process of the crane pipe, the pipeline between the crane pipe dry valve and the pneumatic valve forms a dead zone, with the change of air temperature, frequent pressure rise may occur, if pressure relief is not timely, it may lead to pipeline pressure leakage, causing material leakage from the weak sealing flange, and the leaked material may cause fire, explosion and other major accidents when encountering static electricity or open flame.

[0003] The traditional crane pipe pressure control often relies on manual operation, and the operator needs to check the pressure in the crane pipe regularly, when the pressure is found to be abnormal, manually operate the related valve to relieve pressure, this manual operation method has many drawbacks, on the one hand, manual inspection is difficult to achieve real-time and accurate monitoring, the operator may not be able to find abnormal changes in pressure in time, which increases the safety risk, such as high pressure may cause crane pipe rupture, leakage and other serious accidents, on the other hand, manual operation of the valve for pressure relief may cause operation errors, such as improper timing of opening and closing the valve or inaccurate opening and closing degree, and moreover, frequent manual intervention increases the labor intensity of the operator and reduces the work efficiency. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a crane pipe automatic pressure relief structure.

[0005] The utility model adopts the following technical scheme: a crane pipe automatic pressure relief structure, comprising a crane pipe body, the surface of the crane pipe body is fixedly connected with a pressure relief valve, the surface of the crane pipe body is fixedly connected with a pneumatic valve, the surface of the crane pipe body is fixedly connected with an adjusting mechanism, the outer surface of the crane pipe body is fixedly connected with a pressure transmitter.

[0006] Through the above technical scheme, the automatic pressure relief function of the crane pipe is realized, through the cooperation of the pressure transmitter and the batch control instrument, the pressure can be detected in time and automatically relieved when the pressure is abnormal, ensuring the safety of the crane pipe system, improving the automation level through the reform of the automatic pressure relief function, realizing the intrinsic safety of the process pressure relief operation, and reducing the labor intensity of the operator.

[0007] As a further improvement of the above scheme, the adjusting mechanism comprises a mounting frame, a surface of the mounting frame is provided with an auxiliary sliding groove, an inner part of the auxiliary sliding groove is slidably connected with a movable sliding block, a surface of the movable sliding block is fixedly connected with an adjusting rack, a surface of the adjusting rack is meshingly connected with a driving gear, and a surface of the movable sliding block is fixedly connected with an electric push rod.

[0008] Through the above technical scheme, the opening and closing of the pneumatic valve can be accurately controlled through the cooperation of the electric push rod, the adjusting rack and the driving gear, so that the precise control of the crane pipe pressure relief process is realized.

[0009] As a further improvement of the above scheme, the driving gear is fixedly connected to the surface of the pneumatic valve.

[0010] Through the above technical scheme, the pneumatic valve can accurately respond to the operation of the adjusting mechanism, and the reliability of the entire crane pipe automatic pressure relief structure is improved.

[0011] As a further improvement of the above scheme, the electric push rod is fixedly connected to the inner wall of the auxiliary sliding groove.

[0012] Through the above technical scheme, the electric push rod can stably push the movable sliding block, thereby ensuring the normal operation of the entire adjusting mechanism, and the stability of the crane pipe automatic pressure relief structure is improved.

[0013] As a further improvement of the above scheme, the surface of the crane pipe body is fixedly connected with a storage tank.

[0014] Through the above technical scheme, the pressure in the crane pipe is discharged into the storage tank, avoiding the safety hazards that may be caused by direct discharge of pressure to the outside, and also realizing the reasonable disposal of pressure, thereby protecting the crane pipe system and the surrounding environment.

[0015] As a further improvement of the above scheme, the movable sliding block is adapted to the auxiliary sliding groove.

[0016] Through the above technical scheme, the friction and jamming phenomenon between components are reduced, the working efficiency and reliability of the adjusting mechanism are improved, and the normal operation of the crane pipe automatic pressure relief structure is ensured.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows:

[0018] The utility model discloses a pressure transmitter real -time monitoring pressure is set to the value, and electric push rod telescopic movement is driven to the inside sliding of auxiliary sliding groove of movable sliding block, and the movable sliding block slides, and its surface fixed connection's adjusting rack follows the movement, and since adjusting rack and driving gear engage, further drive driving gear rotation, since driving gear fixed connection on the surface of pneumatic valve, thereby realize the opening or closing operation of pneumatic valve, and the whole pressure relief process is opened and closed to the automatic control of pneumatic valve by adjusting mechanism, and it is unnecessary to manually frequent intervention, reduces the human operation mistake, and simultaneously it is unnecessary to manually operate pressure relief, and the labor intensity is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic view of the utility model;

[0020] Figure 2 It is the structure schematic view of the storage tank of the utility model;

[0021] Figure 3 It is the structure schematic view of the adjusting mechanism of the utility model;

[0022] Figure 4 It is the structure schematic view of the pressure transmitter of the utility model.

[0023] Main symbol explains:

[0024] 1, the riser body;2, the anti -leak valve;3, pneumatic valve;4, adjusting mechanism;401, mounting frame;402, auxiliary sliding groove;403, movable sliding block;404, adjusting rack;405, driving gear;406, electric push rod;5, pressure transmitter;6, storage tank. DETAILED DESCRIPTION

[0025] Below, combining the drawings and specific implementation, the utility model is further described, and it is explained that under the premise of not conflicting, the following described each embodiment or each technical feature between can be any combination and form new embodiment.

[0026] Embodiment:

[0027] Please combine Figures 1-4The embodiment is an automatic pressure relief structure of a crane pipe, which comprises a crane pipe body 1, a pressure relief valve 2 fixedly connected to the surface of the crane pipe body 1, a pneumatic valve 3 fixedly connected to the surface of the crane pipe body 1, an adjusting mechanism 4 fixedly connected to the surface of the crane pipe body 1, and a pressure transmitter 5 fixedly connected to the outer surface of the crane pipe body 1. The pressure transmitter 5 can connect the pressure signal in the crane pipe body 1 to the batch control instrument for real-time monitoring. When the crane pipe line is idle, the pressure transmitter 5 continuously detects the pressure of the dead zone pipe line, sets a pressure alarm interlocking value, and interlocks the pneumatic valve 3 of the corresponding crane position. When the pressure reaches the set value, the adjusting mechanism 4 is triggered to drive the pneumatic valve 3 to open and start the pressure relief work. After the pressure relief is completed, the adjusting mechanism 4 drives the pneumatic valve 3 to close again.

[0028] The adjusting mechanism 4 comprises a mounting frame 401, an auxiliary sliding groove 402 is formed in the surface of the mounting frame 401, a movable sliding block 403 is slidably connected in the auxiliary sliding groove 402, an adjusting rack 404 is fixedly connected to the surface of the movable sliding block 403, a drive gear 405 is meshingly connected to the surface of the adjusting rack 404, an electric push rod 406 is fixedly connected to the surface of the movable sliding block 403, and the electric push rod 406 performs telescopic movement. Since the electric push rod 406 is fixedly connected to the inner wall of the auxiliary sliding groove 402 and the movable sliding block 403 is matched with the auxiliary sliding groove 402, the telescopic movement of the electric push rod 406 drives the movable sliding block 403 to slide in the auxiliary sliding groove 402. When the movable sliding block 403 slides, the adjusting rack 404 fixedly connected to the surface of the movable sliding block 403 moves together. The adjusting rack 404 is meshingly connected with the drive gear 405, and the movement of the adjusting rack 404 drives the drive gear 405 to rotate. Since the drive gear 405 is fixedly connected to the surface of the pneumatic valve 3, the rotation of the drive gear 405 drives the pneumatic valve 3 to rotate, thereby realizing the opening or closing operation of the pneumatic valve 3.

[0029] The drive gear 405 is fixedly connected to the surface of the pneumatic valve 3. When the adjusting rack 404 drives the drive gear 405 to rotate, the drive gear 405 directly drives the pneumatic valve 3 to rotate, thereby realizing the opening or closing operation of the pneumatic valve 3.

[0030] The electric push rod 406 is fixedly connected to the inner wall of the auxiliary sliding groove 402. When the electric push rod 406 telescopes, it takes the inner wall of the auxiliary sliding groove 402 as a support point to drive the movable sliding block 403 to slide in the auxiliary sliding groove 402, thereby starting the meshing transmission operation of the adjusting rack 404 and the drive gear 405.

[0031] The surface of the gooseneck body 1 is fixedly connected with a storage tank 6, when the pneumatic valve 3 corresponding to the gooseneck is opened, the pressure in the gooseneck body 1 can be discharged into the corresponding storage tank 6, when the pressure in the gooseneck body 1 is higher than the pressure in the storage tank 6, the pressure will flow from the gooseneck body 1 to the storage tank 6.

[0032] The movable sliding block 403 is matched with the auxiliary sliding groove 402, when the electric push rod 406 pushes the movable sliding block 403, the movable sliding block 403 can smoothly slide in the auxiliary sliding groove 402, and the adjusting rack 404 can stably mesh with the driving gear 405 to drive and the like.

[0033] The implementation principle of the gooseneck automatic pressure relief structure in the embodiment of the application is as follows: an operator opens the pressure transmitter 5, so that the pressure signal in the gooseneck body 1 can be input into the batch control instrument to be monitored in real time, when the launch pipeline is idle, the pressure transmitter 5 starts to continuously detect the pressure of the dead zone pipeline, the operator can check the real-time pressure data on the batch control instrument, when the pressure transmitter 5 detects that the pressure reaches the set value, the adjusting mechanism 4 is triggered, in the adjusting mechanism 4, the electric push rod 406 starts to extend and retract, since the electric push rod 406 is fixedly connected to the inner wall of the auxiliary sliding groove 402 and the movable sliding block 403 is matched with the auxiliary sliding groove 402, the extension and retraction of the electric push rod 406 drives the movable sliding block 403 to slide in the auxiliary sliding groove 402, when the movable sliding block 403 slides, the adjusting rack 404 fixedly connected to the surface of the movable sliding block 403 moves together, the adjusting rack 404 is meshed with the driving gear 405, the movement of the adjusting rack 404 drives the driving gear 405 to rotate, since the driving gear 405 is fixedly connected to the surface of the pneumatic valve 3, the rotation of the driving gear 405 drives the pneumatic valve 3 to rotate, so that the opening operation of the pneumatic valve 3 is realized, the pressure in the gooseneck body 1 starts to be discharged into the corresponding storage tank 6, at this time, the operator can check the state of the pneumatic valve 3 and the pressure change on the batch control instrument, when the pressure transmitter 5 detects that the pressure returns to the normal range, the adjusting mechanism 4 works again, the electric push rod 406 reversely extends and retracts, drives the movable sliding block 403 to reversely slide, drives the adjusting rack 404 to reversely move, drives the driving gear 405 to reversely rotate, and then drives the pneumatic valve 3 to close, the operator confirms that the pneumatic valve 3 is closed and the pressure is kept in the normal range on the batch control instrument, and the whole gooseneck system is in the normal monitoring state again.

[0034] The above-mentioned embodiment is only the preferred embodiment of the application, and cannot be used to limit the protection scope of the application, and any non-essential change and replacement made by the person skilled in the art on the basis of the application belongs to the protection scope of the application.

Claims

1. A structure for implementing automatic pressure relief of a loading arm, characterized by, The utility model relates to a kind of air hose, including air hose body (1), the surface of the air hose body (1) is fixedly connected with anti-leak valve (2), the surface of the air hose body (1) is fixedly connected with pneumatic valve (3), the surface of the air hose body (1) is fixedly connected with adjusting mechanism (4), the outer surface of the air hose body (1) is fixedly connected with pressure transmitter (5); The adjusting mechanism (4) includes a mounting bracket (401), the surface of the mounting bracket (401) is provided with an auxiliary sliding groove (402), the inside of the auxiliary sliding groove (402) is slidably connected with a movable sliding block (403), the surface of the movable sliding block (403) is fixedly connected with an adjusting rack (404), the surface of the adjusting rack (404) is meshingly connected with a drive gear (405), the surface of the movable sliding block (403) is fixedly connected with an electric push rod (406).

2. The structure for automatically relieving pressure of a swivel as set forth in claim 1, wherein: The drive gear (405) is fixedly connected to the surface of the pneumatic valve (3).

3. The structure for automatically relieving pressure of a swivel as claimed in claim 1, wherein: The electric push rod (406) is fixedly connected to the inner wall of the auxiliary sliding groove (402).

4. The structure for automatically relieving pressure of a loading arm according to claim 1, wherein: The surface of the air hose body (1) is fixedly connected with a storage tank (6).

5. The structure for automatically relieving pressure of a loading arm according to claim 1, wherein: The movable sliding block (403) is adapted to the auxiliary sliding groove (402).

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