Anti-explosion pressure relief device for vacuum pipeline

Abstract

The utility model provides an anti-explosion pressure relief device for a vacuum pipeline, which belongs to the technical field of vacuum pipelines and comprises a vacuum pipe, a pressure relief adjusting component and an intelligent auxiliary component, the pressure relief adjusting component comprises a fixing plate arranged at the tops of two connecting frames, and two auxiliary rods are arranged at the bottom of the fixing plate. Springs are arranged on the outer walls of the two auxiliary rods, connecting plates are arranged at the bottoms of the two springs, the interiors of the two connecting plates are slidably connected with the auxiliary rods, a fixing strip is arranged between the two connecting plates, a pipeline sealer is arranged at the bottom of the fixing strip, and the bottom of the pipeline sealer is movably connected with the inner wall of the vacuum pipe. An adjusting strip is arranged at the tops of the two springs, the interior of the adjusting strip is slidably connected with the two auxiliary rods, a supporting strip is arranged at one end of the adjusting strip, a torque motor is arranged at one end of the supporting strip, a gear is arranged at the end of an output shaft of the torque motor, and one side of the gear is meshed with a rack.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vacuum pipeline technical field, concretely relates to a kind of anti-explosion pressure relief device for vacuum pipeline. BACKGROUND

[0002] Gas insulated switchgear is an important component of high-voltage transmission equipment, and in order to insulate and extinguish arc during operation, SF6 gas at a certain pressure is filled in the internal pipeline of the equipment, and a metal corrugated compensator is used to absorb the stress and displacement caused by temperature or mechanical vibration of the pipeline. According to the search, the application number CN202220595399.2 discloses an anti-explosion pressure relief device for vacuum pipeline, which records that when the equipment is working normally, the vacuum pipeline is under negative pressure, the sealing cover of the pressure relief device has self-sealing property, and does not affect the vacuum degree of the vacuum pipeline. When abnormal, the vacuum box appears positive pressure airflow to the helium mass spectrometer end, the spring pressure relief device is lifted by positive pressure, and the first pressure relief is completed. When the residual airflow in the pipeline flows to the corrugated pipe end, the corrugated pipe is under positive pressure, and the sealing cover is lifted by the wave contraction, realizing the second pressure relief. It provides two anti-explosion pressure relief protections, which can effectively complete the pressure relief work after sudden pressure increase in the box, meets the use requirements, and is safe and reliable. When the equipment is working normally, the vacuum pipeline is under negative pressure, the sealing cover of the pressure relief device has self-sealing property, and does not affect the vacuum degree of the vacuum pipeline. When abnormal, the vacuum box appears positive pressure airflow to the helium mass spectrometer end, the spring pressure relief device is lifted by positive pressure, and the first pressure relief is completed. But in actual use, there are still the following problems:

[0003] In actual use, the spring pressure relief cannot be adjusted, resulting in poor adaptability, and the internal pressure of the detector cannot be transmitted to the user to alert.

[0004] Therefore, it is of high practicality to provide a device that can adjust the resistance of spring pressure relief and transmit the internal pressure to the user. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an anti-explosion pressure relief device for vacuum pipeline, to solve the above technical problems.

[0006] The utility model embodiment provides an anti-explosion pressure relief device for vacuum pipeline, which comprises a vacuum pipe, a pressure relief adjusting assembly and an intelligent auxiliary assembly.

[0007] Among them, the top of the vacuum pipe is provided with a first fixing block on both sides, and a connecting frame is arranged on one side of the two first fixing blocks.

[0008] The pressure relief adjusting assembly comprises fixed plates arranged at the top of the two connecting frames, the bottom of each fixed plate is provided with an auxiliary rod, the outer wall of each auxiliary rod is provided with a spring, the bottom of each spring is provided with a connecting plate, the inner part of each connecting plate is slidably connected with the auxiliary rod, a fixed strip is arranged in the middle of each connecting plate, the bottom of the fixed strip is provided with a pipeline sealer, the bottom of the pipeline sealer is movably connected with the inner wall of the vacuum pipe, the top of each spring is provided with an adjusting strip, the inner part of each adjusting strip is slidably connected with the auxiliary rod, one end of each adjusting strip is provided with a supporting strip, one end of each supporting strip is provided with a torque motor, the output shaft end of the torque motor is provided with a gear, and the gear is meshed with a rack on one side.

[0009] The intelligent auxiliary assembly comprises a pressure sensor arranged at the top of the inner wall of the vacuum pipe, a temperature sensor arranged at the middle of the top of the inner wall of the vacuum pipe, a buzzer arranged at the middle of the top of the vacuum pipe, an alarm lamp arranged at the side of the top of the vacuum pipe, and two reinforcing plates arranged at one end of the vacuum pipe, and the inner part of each reinforcing plate is provided with a signal transmitter.

[0010] In one embodiment of the utility model, the top of the rack is provided with a connecting rod, the end of the connecting rod is fixedly connected with the fixed plate, the bottom of the connecting rod is provided with a second fixed block, and one end of the second fixed block is fixedly connected with the vacuum pipe.

[0011] In one embodiment of the utility model, the side of the top of the second fixed block is provided with a limiting rod, the top of the limiting rod is provided with a reinforcing strip, and one end of the reinforcing strip is fixedly connected with the fixed plate.

[0012] In one embodiment of the utility model, the outer wall of the limiting rod is slidably connected with a sliding plate, and one side of the sliding plate is fixedly connected with the torque motor.

[0013] In one embodiment of the utility model, the two sides of the adjusting strip are provided with infrared sensors, and one side of each connecting frame is provided with a scale table.

[0014] In one embodiment of the utility model, each connecting frame is made of tungsten, and the top of the fixed plate is provided with a PLC controller.

[0015] In one embodiment of the utility model, the meshing part of the gear and the rack is coated with lubricating oil.

[0016] In one embodiment of the utility model, the torque motor, the pressure sensor, the temperature sensor, the buzzer, the alarm lamp, the signal transmitter and the infrared sensor are electrically connected with the PLC controller, and the PLC controller is electrically connected with an external power supply.

[0017] Compared with the prior art, the utility model has the advantages of

[0018] 1) when using, need according to the force of spring of vacuum pipe pressure adjustment, and the user opens the torque motor through PLC controller, and the torque motor drives the gear rotation, and then makes the gear move on the rack, and makes the self drive adjustment bar move, and the adjustment bar slides on the auxiliary rod, and then compresses the spring, and the resistance that the spring receives becomes bigger or smaller, and then according to the pressure in the vacuum pipe adjusts the resistance of spring;

[0019] 2) through the pressure sensor of being equipped with, the pressure sensor is detected to exceed the preset value to the pressure in the vacuum pipe through the PLC controller of opening pressure sensor by the user, will the information feedback to PLC controller, makes PLC controller open warning light, buzzer and signal transmitter and pass information to the user, so that the user is vigilant, when pressure is normal, PLC controller will close warning light, buzzer and signal transmitter, make it normal use, to realize the purpose of warning to the user. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of one end of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the top of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the inside of the vacuum pipe of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the gear of the utility model.

[0026] In the drawing: 100, vacuum pipe; 110, connecting frame; 200, pressure relief adjustment assembly; 210, fixed plate; 220, auxiliary rod; 230, spring; 240, connecting plate; 250, sealing device; 260, adjustment bar; 270, torque motor; 280, gear; 290, rack; 300, intelligent auxiliary assembly; 310, pressure sensor; 320, temperature sensor; 330, buzzer; 340, warning light; 350, reinforcing plate; 360, signal transmitter; 400, connecting rod; 500, limiting rod; 600, reinforcing bar; 700, sliding plate; 800, infrared sensor; 900, scale. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] EMBODIMENT

[0029] Please refer to Figures 1-5 An anti-explosion pressure relief device for a vacuum pipeline, comprising a vacuum pipe 100, a pressure relief adjusting assembly 200 and an intelligent auxiliary assembly 300.

[0030] Specifically, please refer to Figure 1 The top of the vacuum pipe 100 is provided with first fixing blocks on both sides, and the sides of the two first fixing blocks are provided with connecting frames 110.

[0031] Please refer to Figure 2 The pressure relief adjusting assembly 200 comprises a fixing plate 210 provided on the top of the two connecting frames 110, two auxiliary rods 220 provided on the bottom of the fixing plate 210, springs 230 provided on the outer walls of the two auxiliary rods 220, connecting plates 240 provided on the bottoms of the two springs 230, the interiors of the two connecting plates 240 in sliding connection with the auxiliary rods 220, a fixing strip provided in the middle of the two connecting plates 240, a pipeline sealer 250 provided on the bottom of the fixing strip, the bottom of the pipeline sealer 250 in movable connection with the inner wall of the vacuum pipe 100, adjusting strips 260 provided on the tops of the two springs 230, the interiors of the adjusting strips 260 in sliding connection with the two auxiliary rods 220, a supporting strip provided on one end of the adjusting strip 260, a torque motor 270 provided on one end of the supporting strip, a gear 280 provided on the output shaft end of the torque motor 270, and a rack 290 meshed with one side of the gear 280.

[0032] In a specific embodiment, the spring 230 is provided to facilitate the use of the vacuum tube 100. When the internal pressure is greater than the preset value, the internal pressure will push the sealing device 250 out. At this time, the spring 230 is retracted and the pressure is discharged from the edge. When the pressure returns to the normal value, the spring 230 disappears and rebounds to reset, thereby resealing the vacuum tube 100. When using, the user adjusts the strength of the spring 230 according to the internal pressure of the vacuum tube 100. The user opens the torque motor 270 through the PLC controller. The torque motor 270 drives the gear 280 to rotate, thereby moving the gear 280 on the rack 290, driving the adjustment bar 260 to move, and sliding the adjustment bar 260 on the auxiliary rod 220, thereby compressing the spring 230 to increase or decrease the resistance of the spring 230, thereby adjusting the resistance of the spring 230 according to the internal pressure of the vacuum tube 100.

[0033] Referring to Figure 1 , the intelligent auxiliary assembly 300 includes a pressure sensor 310 arranged on the inner wall top of the vacuum tube 100, a temperature sensor 320 arranged on the inner wall top of the vacuum tube 100, a buzzer 330 arranged on the top of the vacuum tube 100, an alarm lamp 340 arranged on the side of the top of the vacuum tube 100, and two reinforcing plates 350 arranged on one end of the vacuum tube 100. The inside of the two reinforcing plates 350 is provided with a signal transmitter 360.

[0034] In a specific embodiment, the pressure sensor 310 is provided to facilitate the user to open the pressure sensor 310 through the PLC controller. When the internal pressure of the vacuum tube 100 exceeds the preset value, the pressure sensor 310 detects the information and feeds back to the PLC controller. The PLC controller opens the alarm lamp 340, the buzzer 330 and the signal transmitter 360 to transmit information to the user, so that the user can be vigilant. When the pressure is normal, the PLC controller will close the alarm lamp 340, the buzzer 330 and the signal transmitter 360, so that it can be used normally.

[0035] Referring to Figure 3 , the top of the rack 290 is provided with a connecting rod 400, the end of the connecting rod 400 is fixedly connected with the fixed plate 210, and the bottom of the connecting rod 400 is provided with a second fixed block. One end of the second fixed block is fixedly connected with the vacuum tube 100.

[0036] In a specific embodiment, the connecting rod 400 is provided to facilitate the support and fixation of the rack 290, so that the rack 290 can be more stable during use, avoiding the shaking condition during use, and further increasing the stability.

[0037] Referring to Figure 3The top side of the second fixing block is provided with a limiting rod 500, and the top of the limiting rod 500 is provided with a reinforcing strip 600, one end of the reinforcing strip 600 being fixedly connected with the fixing plate 210.

[0038] In a specific embodiment, the reinforcing strip 600 is arranged to facilitate the support and fixation of the limiting rod 500, so that the limiting rod 500 can be more stable during use, avoiding shaking during use and improving stability.

[0039] Please refer to Figure 4 The outer wall of the limiting rod 500 is slidably connected with a sliding plate 700, and one side of the sliding plate 700 is fixedly connected with the torque motor 270.

[0040] In a specific embodiment, the sliding plate 700 is arranged to facilitate the movement of the torque motor 270, so that the sliding plate 700 can slide on the limiting rod 500, making the torque motor 270 more stable and safe during movement and improving stability.

[0041] Please refer to Figure 1 The two sides of the adjusting strip 260 are provided with infrared sensors 800, and one side of each of the two connecting frames 110 is provided with a scale 900.

[0042] In a specific embodiment, the infrared sensor 800 is arranged to facilitate the adjustment of the resistance of the spring 230 by the user, and the infrared sensor 800 is turned on by the PLC controller, so that the infrared sensor 800 can be driven by the adjusting strip 260 during movement, so that the infrared sensor 800 can scan the scale 900 to record the pressure value of the vacuum tube 100, so that the next time can be directly and quickly adjusted.

[0043] Please refer to Figure 1 The two connecting frames 110 are made of tungsten, and the top of the fixing plate 210 is provided with a PLC controller.

[0044] In a specific embodiment, the tungsten is arranged to facilitate the use of the connecting frame 110, which can utilize the high temperature resistance and firmness of tungsten to make the user use the connecting frame 110 more stably, further improving stability.

[0045] Please refer to Figure 2 The meshing part of the gear 280 and the rack 290 is coated with lubricating oil.

[0046] In a specific embodiment, the lubricating oil is arranged to facilitate the smooth movement of the gear 280 on the rack 290, avoiding the problem of jamming.

[0047] Please refer to Figures 1-5The torque motor 270, the pressure sensor 310, the temperature sensor 320, the buzzer 330, the alarm lamp 340, the signal transmitter 360 and the infrared sensor 800 are electrically connected with the PLC controller, and the PLC controller is electrically connected with the external power supply.

[0048] In a specific embodiment, the PLC controller is provided to facilitate the power-on control of the electrical equipment, and the electrical equipment can be powered on when electricity is needed, thereby avoiding the condition that the electrical equipment cannot be powered on when electricity is needed.

[0049] In use, first, when the internal pressure of the vacuum tube 100 is greater than the preset value, the internal pressure will push the sealing device 250 out, at this time, the spring 230 is contracted and the pressure is discharged from the edge, and when the pressure returns to the normal value, the impact force on the spring 230 disappears, and then the spring 230 rebounds and resets, thereby resealing the vacuum tube 100 with the sealing device 250. Then, when the internal pressure of the vacuum tube 100 needs to be adjusted, the user opens the torque motor 270 through the PLC controller, the torque motor 270 drives the gear 280 to rotate, thereby moving the gear 280 on the rack 290, driving the adjustment bar 260 to move, and the adjustment bar 260 slides on the auxiliary rod 220, thereby compressing the spring 230 and changing the resistance of the spring 230. Then, the pressure sensor 310 is provided to facilitate the user to open the pressure sensor 310 through the PLC controller, so that the pressure sensor 310 detects the internal pressure of the vacuum tube 100 and feeds back information to the PLC controller when the internal pressure exceeds the preset value. The PLC controller opens the alarm lamp 340, the buzzer 330 and the signal transmitter 360 to transmit information to the user, and finally the user is warned, and when the pressure is normal, the PLC controller closes the alarm lamp 340, the buzzer 330 and the signal transmitter 360 to make them work normally.

[0050] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application 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 replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An explosion-proof pressure relief device for use on a vacuum conduit, comprising: Include: Vacuum tube (100), the top of the vacuum tube (100) is provided with a first fixed block on both sides, one side of the two first fixed blocks is provided with a connecting frame (110); Pressure relief adjusting assembly (200), the pressure relief adjusting assembly (200) includes a fixed plate (210) provided at the top of the two connecting frames (110), the bottom of the fixed plate (210) is provided with two auxiliary rods (220), the outer wall of the two auxiliary rods (220) is provided with a spring (230), the bottom of the two springs (230) is provided with a connecting plate (240), the inside of the two connecting plates (240) is slidably connected with the auxiliary rod (220), the middle of the two connecting plates (240) is provided with a fixed strip, the bottom of the fixed strip is provided with a pipeline sealer (250), the bottom of the pipeline sealer (250) is movably connected with the inner wall of the vacuum tube (100), the top of the two springs (230) is provided with an adjusting strip (260), the inside of the adjusting strip (260) is slidably connected with the two auxiliary rods (220), one end of the adjusting strip (260) is provided with a supporting strip, one end of the supporting strip is provided with a torque motor (270), the output shaft end of the torque motor (270) is provided with a gear (280), one side of the gear (280) is engaged with a rack (290); The intelligent auxiliary assembly (300) includes a pressure sensor (310) provided on the inner wall of the top of the vacuum tube (100), a temperature sensor (320) provided on the inner wall of the top of the vacuum tube (100), a buzzer (330) provided on the top of the vacuum tube (100), an alarm lamp (340) provided on the side of the top of the vacuum tube (100), and two reinforcing plates (350) provided on one end of the vacuum tube (100), the inside of the two reinforcing plates (350) is provided with a signal transmitter (360).

2. The anti-explosion pressure relief device for vacuum pipeline according to claim 1, characterized in that: The top of the rack (290) is provided with a connecting rod (400), the end of the connecting rod (400) is fixedly connected with the fixed plate (210), the bottom of the connecting rod (400) is provided with a second fixed block, one end of the second fixed block is fixedly connected with the vacuum tube (100).

3. The anti-explosion pressure relief device for vacuum pipeline according to claim 2, characterized in that: The top side of the second fixed block is provided with a limiting rod (500), the top of the limiting rod (500) is provided with a reinforcing strip (600), one end of the reinforcing strip (600) is fixedly connected with the fixed plate (210).

4. The anti-explosion pressure relief device for vacuum pipeline according to claim 3, characterized in that: The outer wall of the limiting rod (500) is slidably connected with a sliding plate (700), one side of the sliding plate (700) is fixedly connected with the torque motor (270).

5. The anti-explosion pressure relief device for vacuum pipeline according to claim 1, characterized in that: Both sides of the adjusting strip (260) are provided with an infrared sensor (800), one side of the two connecting frames (110) is provided with a scale (900).

6. The anti-explosion pressure relief device for vacuum pipeline according to claim 5, characterized in that: The two connecting frames (110) are made of tungsten, the top of the fixed plate (210) is provided with a PLC controller.

7. The anti-explosion pressure relief device for vacuum pipeline according to claim 1, characterized in that: The meshing part of the gear (280) and the rack (290) is coated with lubricating oil.

8. The anti-explosion pressure relief device for vacuum pipeline according to claim 6, characterized in that: The torque motor (270), pressure sensor (310), temperature sensor (320), buzzer (330), alarm light (340), signal transmitter (360) and infrared sensor (800) are electrically connected with the PLC controller, and the PLC controller is electrically connected with the external power supply.

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