Leakage detector for chemical anhydride production pressure reaction kettle

Abstract

The invention provides a chemical anhydride production pressure reaction kettle leakage detector, and relates to the technical field of gas detection equipment, the chemical anhydride production pressure reaction kettle leakage detector comprises a movable base, three supports are fixedly installed at the upper end of the movable base, the three supports are arranged in a U shape, and two opposite supports are provided with first inner grooves; one support is provided with a first inner groove and a display screen, the other support is provided with a second inner groove and a display screen, fixing strips are fixedly installed in the inner walls of the two first inner grooves, inserting grooves are formed in the two fixing strips, a fixing frame is fixedly installed at the upper ends of the three supports, a hydraulic oil cylinder is fixedly installed on the fixing frame, and the hydraulic oil cylinder is electrically connected with an external control circuit. An electric telescopic rod is installed at the output end of the hydraulic oil cylinder, a fixing disc is fixedly installed at the lower end of the electric telescopic rod, the outer wall of the pressure reaction kettle is detected in a spiral descending mode, all-directional and dead-corner-free detection coverage is achieved, the integrity and accuracy of detection are improved, the detection time is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of gas detection equipment, and more specifically, particularly relates to a leakage detector for a pressure reactor in the production of chemical acid anhydride. Background Art

[0002] Pressure reactors are commonly used in the production process of chemical companies. The reactors need to withstand great pressure during the production process. After working for a long time, the surface of the pressure reactor will age. The aged reactor will leak pressure during the production process, seriously affecting the company's safe production. Therefore, if the aged pressure reactor is inspected, timely determining the leakage location of the pressure reactor becomes an urgent problem that needs to be solved in the company's production process.

[0003] However, the existing chemical anhydride production pressure reactor leak detector still has the following shortcomings when used:

[0004] 1. Existing pressure reactors are usually large and inconvenient to move, so it is time-consuming and laborious to position them, and it is difficult to ensure the accuracy and consistency of positioning, which easily affects the subsequent production process and product quality;

[0005] 2. In terms of pressure reactor testing, traditional testing methods often have problems such as limited testing range, susceptibility to interference from external impurities, and low testing efficiency, making it difficult to achieve comprehensive, accurate, and efficient testing;

[0006] 3. During the detection process, if there is a gas leak in the pressure reactor, the leaked gas may contain harmful substances, the spread of which may pose a threat to the health of the inspectors, but the existing detection equipment lacks effective means to deal with such problems.

[0007] In view of the existing structure and defects, improvements are made to provide a leakage detector for a pressure reactor in the production of chemical acid anhydrides. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides a leakage detector for a pressure reactor in the production of chemical anhydrides to solve the above problems.

[0009] A leakage detector for a pressure reactor for producing chemical anhydride, comprising a mobile base, wherein three brackets are fixedly installed on the upper end of the mobile base, the three brackets are arranged in a U shape, two opposite brackets are provided with a first inner groove, the other bracket is provided with a second inner groove, two fixing bars are fixedly installed in the inner walls of the two first inner grooves, two fixing bars are provided with slots inside, a fixing frame is fixedly installed on the upper ends of the three brackets, a hydraulic oil cylinder is fixedly installed on the fixing frame, an electric telescopic rod is installed on the output end of the hydraulic oil cylinder, a fixing plate is fixedly installed on the lower end of the electric telescopic rod, and first rolling balls are provided on both upper and lower ends of the fixing plate;

[0010] A positioning mechanism is disposed inside each of the two first inner grooves;

[0011] The positioning mechanism includes a guide bar, and the two guide bars are respectively slidably installed in the two first inner grooves. The two guide bars are each provided with a first slide groove. The two fixed bars are respectively arranged in the two first slide grooves. Second rolling balls are arranged on the opposite ends of the two guide bars. Inner columns are fixedly installed in the inner walls of the two first slide grooves, and circular rings are symmetrically slidably installed on the two inner columns.

[0012] Preferably, the two groups of circular rings are fixedly mounted with first springs, the ends of the two groups of first springs away from the two groups of circular rings are respectively fixedly connected to the inner walls of the two first slide grooves, the lower ends of the two guide strips are symmetrically provided with dovetail grooves, and dovetail blocks are slidably mounted inside the two groups of dovetail grooves.

[0013] Preferably, sliding columns are fixedly installed at the lower ends of the two groups of dovetail blocks, and second springs are sleeved on the two groups of sliding columns. U-shaped frames are symmetrically fixedly installed in the inner walls of the two first inner grooves, and each group of U-shaped frames is symmetrically arranged with the fixing bar as the central axis.

[0014] Preferably, the upper ends of the two groups of the second springs are fixedly connected to the two groups of dovetail blocks, the lower ends of the two groups of the second springs are fitted with the two groups of U-shaped frames, the two groups of the sliding columns are respectively slidably installed in the two groups of U-shaped frames, and the first inner groove and the movable base are provided with circular grooves adapted to the two groups of sliding columns.

[0015] Preferably, a threaded disk is threadedly installed on the three brackets, a mounting frame is fixedly installed on the upper end of the threaded disk, a placement groove is opened at the center of the upper end of the mounting frame, and three second sliding grooves are opened at the upper end of the mounting frame, and the three second sliding grooves are evenly distributed with the placement groove as the center point.

[0016] Preferably, a mounting plate is provided above the mounting frame, and first screws are evenly and equidistantly fixedly installed on the lower end of the mounting plate, three of the first screws are respectively inserted in three second slide grooves, and first threaded rings are threadedly installed on the three first screws, and a detection cylinder is fixedly installed in the inner wall of the threaded plate.

[0017] Preferably, third sliding grooves are evenly and equidistantly provided on the side wall of the detection cylinder, rectangular frames are slidably installed inside the four third sliding grooves, third springs are fixedly installed in the inner walls of the four rectangular frames, and one end of each third spring away from the rectangular frame is fixedly connected to the detection cylinder.

[0018] Preferably, scrapers are installed symmetrically on the opposite ends of the two rectangular frames in the horizontal direction of the guide bar, cleaning cotton is fixedly installed on the opposite ends of the two rectangular frames in the horizontal direction of the guide bar, and gas sensors are provided on the opposite ends of the two rectangular frames in the vertical direction of the guide bar.

[0019] Preferably, an adsorption box is symmetrically fixedly mounted on the movable base, an adsorption pump is provided in the upper end of the detection cylinder, an air inlet pipe is installed on the adsorption pump, and a second screw is installed on the end of the air inlet pipe away from the adsorption box.

[0020] Preferably, a second threaded ring is threadedly installed on the second screw rod, activated carbon adsorption plates are inserted into the two adsorption boxes, a connecting strip is fixedly installed between the two activated carbon adsorption plates, and the connecting strip is sleeved on the second screw rod.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, by providing a movable base, a fixed disk and a first spring, the deformation of the two groups of first springs will drive the movable base to adjust its position until the two groups of first springs are evenly stressed. At this time, the pressure reactor will be located inside the movable base, in a position directly opposite to the fixed disk and vertically. When in use, the device can be automatically positioned. Through the automatic positioning function of the device, there is no need for cumbersome manual adjustment, and the pressure reactor can be quickly and accurately placed in the correct position, saving time and labor costs.

[0023] In the present invention, by providing a bracket, a threaded disk, a detection cylinder, a third slide groove, a rectangular frame, a third spring and cleaning cotton, the threaded disk will rotate between the three brackets when moving downward, thereby driving the detection cylinder to rotate and move downward. When the detection cylinder is sleeved on the pressure reactor, the top of the pressure reactor will squeeze the four rectangular frames. At this time, the four rectangular frames will be forced to slide toward the outside of the detection cylinder in the third slide groove. At this time, the four groups of third springs will also deform and generate elastic force. The four rectangular frames will keep in contact with the outer wall of the pressure reactor. As the detection cylinder continues to descend, the two cleaning cottons will synchronously clean the outer wall of the pressure reactor, which can effectively reduce the interference of external impurities on the detection results.

[0024] In the present invention, by providing cleaning cotton and gas sensors, after the cleaning cotton cleans the outer wall of the pressure reactor, the two groups of gas sensors will detect the outer wall of the pressure reactor, and detect the outer wall of the pressure reactor in a spiral descending manner, thereby achieving all-round and dead-angle detection coverage, improving the integrity and accuracy of the detection, saving detection time, and improving work efficiency;

[0025] In the present invention, by providing a detection tube, an adsorption box, an air intake pipe, a second screw, a second threaded ring, an activated carbon adsorption plate, a connecting strip and an adsorption pump, the adsorption pump will extract the gas inside the detection tube, and then inject it into the two adsorption boxes through the air intake pipe and the second screw, and then remove the harmful substances in the gas through the adsorption action of the two activated carbon adsorption plates, so that the device can simultaneously avoid the diffusion of harmful substances in the gas during detection, causing harm to the detection personnel, and enhance the detection safety; and when disassembling, the air intake pipe can be removed from the adsorption pump first, and then the second threaded ring can be screwed upward on the second screw to release the limit, and then the activated carbon adsorption plate and the connecting strip can be taken out, so that the device also has the function of easy disassembly and installation;

[0026] The present invention provides a movable base, a bracket, a fixing bar, a slot, a fixing plate, a first rolling ball, a guide bar, an inner column, a circular ring, a first spring, a dovetail block, a sliding column, a second spring, a U-shaped frame, a second sliding groove, a placement groove, a first screw rod and a first threaded ring. During installation, the two circular rings can be moved toward both ends on the inner column. At this time, the two first springs will be compressed accordingly. Then the guide bar can be inserted into the fixing bar. At the same time, the inner column will be inserted into the slot. The two circular rings will be located at both ends of the fixing bar respectively. At this time, the two dovetail blocks will also move accordingly. The two sliding columns will be inserted into the circular grooves in the U-shaped frame and the bracket and the movable base. At this time, the two second springs will also contact the two U-shaped frames. Then the fixing plate can be placed in the placement groove. At this time, the three first screws can be inserted into the three second sliding grooves respectively. Then, the fixing is completed by the first threaded ring. At this time, the first rolling balls installed on both sides of the fixing plate will contact the placement groove and the inner wall of the installation plate. At this time, the installation is completed. The modular installation method is adopted, which is convenient for the disassembly, maintenance and replacement of various components at a later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the support connection structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the explosion structure of the mounting plate connection of the present invention;

[0030] Figure 4 It is a schematic diagram of the connection structure of the adsorption box of the present invention;

[0031] Figure 5 The present invention Figure 2 The enlarged structural diagram at A in the middle;

[0032] Figure 6 It is a schematic diagram of the explosion structure of the rectangular frame connection of the present invention;

[0033] Figure 7 It is a schematic diagram of the connection structure of the hydraulic cylinder of the present invention;

[0034] Figure 8 This is a schematic diagram of the guide strip connection explosion structure of the present invention;

[0035] Fig. 9 It is a schematic diagram of the dovetail block connection explosion structure of the present invention.

[0036] In the figure, the corresponding relationship between the structure names and the reference numerals is as follows: 11, mobile base; 12, bracket; 13, first inner groove; 14, second inner groove; 15, fixed bar; 16, slot; 17, fixed frame; 18, hydraulic cylinder; 19, electric telescopic rod; 21, fixed plate; 22, first rolling ball; 23, guide bar; 24, first slide groove; 25, second rolling ball; 26, inner column; 27, ring; 28, first spring; 31, dovetail groove; 32, dovetail block; 33, slide column; 34, second Spring; 35, U-shaped frame; 41, threaded disk; 42, mounting frame; 43, second slide groove; 44, placement groove; 45, mounting plate; 46, first screw rod; 47, first threaded ring; 51, detection tube; 52, third slide groove; 53, rectangular frame; 54, third spring; 55, scraper; 56, cleaning cotton; 57, gas sensor; 61, adsorption box; 62, air inlet pipe; 63, second screw rod; 64, second threaded ring; 65, activated carbon adsorption plate; 66, connecting strip; 67, adsorption pump. DETAILED DESCRIPTION

[0037] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] See also Figure 1-Figure 9 The present invention provides a leakage detector for a pressure reactor for producing chemical anhydride, comprising a mobile base 11, three brackets 12 are fixedly installed on the upper end of the mobile base 11, the three brackets 12 are arranged in a U shape, two opposite brackets 12 are provided with a first inner groove 13, the other bracket 12 is provided with a second inner groove 14 and a display screen, two fixing bars 15 are fixedly installed in the inner walls of the two first inner grooves 13, and slots 16 are provided inside the two fixing bars 15, a fixing frame 17 is fixedly installed on the upper ends of the three brackets 12, a hydraulic cylinder 18 is fixedly installed on the fixing frame 17, the hydraulic cylinder 18 is electrically connected to an external control circuit, an electric telescopic rod 19 is installed on the output end of the hydraulic cylinder 18, a fixing plate 21 is fixedly installed on the lower end of the electric telescopic rod 19, and first rolling balls 22 are provided on both upper and lower ends of the fixing plate 21;

[0039] Positioning mechanisms are provided inside the two first inner grooves 13;

[0040] The positioning mechanism includes a guide bar 23, and the two guide bars 23 are respectively slidably installed in the two first inner grooves 13. The two guide bars 23 are each provided with a first slide groove 24. The two fixed bars 15 are respectively provided in the two first slide grooves 24. The second rolling balls 25 are provided on the opposite ends of the two guide bars 23. The inner walls of the two first slide grooves 24 are each fixedly installed with an inner column 26. The two inner columns 26 are symmetrically slidably installed with a ring 27. The two groups of rings 27 are each fixedly installed with a first spring 28. The ends of the two groups of first springs 28 away from the two groups of rings 27 are respectively fixedly connected to the inner walls of the two first slide grooves 24. When in use, the equipment can be pushed to move. When the pressure reactor for chemical anhydride production slides into the interior of the mobile base 11, it will contact the two groups of second rolling balls 25. The two The second rolling ball 25 will roll on the pressure reactor for producing chemical anhydride. At this time, the two guide bars 23 will be squeezed and move toward the two ends. At this time, the two fixed bars 15 will push the two groups of rings 27 to slide on the two inner columns 26, and then the two groups of first springs 28 will be deformed. Under the deformation of the two groups of first springs 28, the position of the movable base 11 will be adjusted until the force of the two groups of first springs 28 is uniform. At this time, the pressure reactor will be located inside the movable base 11, in a vertical position facing the fixed plate 21. The equipment can be automatically positioned when in use. Through the automatic positioning function of the equipment, there is no need for cumbersome manual adjustment, and the pressure reactor can be quickly and accurately placed in the correct position, saving time and labor costs.

[0041] The lower ends of the two guide bars 23 are symmetrically provided with dovetail grooves 31, and dovetail blocks 32 are slidably installed inside the two dovetail grooves 31. The lower ends of the two dovetail blocks 32 are fixedly installed with sliding columns 33, and the two sliding columns 33 are sleeved with second springs 34. U-shaped frames 35 are symmetrically fixedly installed in the inner walls of the two first inner grooves 13, and each group of U-shaped frames 35 is symmetrically arranged with the fixed bar 15 as the central axis. The upper ends of the two groups of second springs 34 are fixedly connected to the two groups of dovetail blocks 32, and the lower ends of the two groups of second springs 34 are connected to the two groups of U-shaped frames 35. 5, the two groups of slide posts 33 are slidably installed in the two groups of U-shaped frames 35 respectively, the first inner groove 13 and the movable base 11 are provided with circular grooves adapted to the two groups of slide posts 33, the three brackets 12 are threadedly installed with threaded disks 41, the upper end of the threaded disks 41 is fixedly installed with a mounting frame 42, the center of the upper end of the mounting frame 42 is provided with a placement groove 44, the upper end of the mounting frame 42 is provided with three second slide grooves 43, the three second slide grooves 43 are evenly distributed with the placement groove 44 as the center point, a mounting plate 45 is provided above the mounting frame 42, and the mounting The lower end of the plate 45 is evenly and equidistantly fixed with first screws 46, and the three first screws 46 are respectively inserted into the three second slide grooves 43. When installing, the two rings 27 can be moved to both ends on the inner column 26, and the two first springs 28 will be compressed. Then the guide bar 23 can be inserted into the fixed bar 15. At the same time, the inner column 26 will be inserted into the slot 16, and the two rings 27 will be located at both ends of the fixed bar 15. At this time, the two dovetail blocks 32 will also move accordingly, and the two slide columns 33 will be inserted into the U-shaped frame 35 and the bracket. 12 and the circular groove in the movable base 11, at this time, the two second springs 34 will also contact with the two U-shaped frames 35, and then the fixed plate 21 can be placed in the placement groove 44, at this time, the three first screws 46 can be respectively inserted into the three second slide grooves 43, and then fixed by the first threaded ring 47, at this time, the first rolling balls 22 installed on both sides of the fixed plate 21 will contact with the placement groove 44 and the inner wall of the installation plate 45, and the installation will be completed at this time. The modular installation method is adopted, which is convenient for the later disassembly, maintenance and replacement of various components;

[0042] The three first screw rods 46 are all threadedly installed with a first threaded ring 47, a detection cylinder 51 is fixedly installed in the inner wall of the threaded disk 41, and a third slide groove 52 is evenly and equidistantly provided on the side wall of the detection cylinder 51. A rectangular frame 53 is slidably installed inside the four third slide grooves 52, and a third spring 54 is fixedly installed in the inner wall of the four rectangular frames 53. One end of each third spring 54 away from the rectangular frame 53 is fixedly connected to the detection cylinder 51, and a scraper 55 is symmetrically installed on the opposite ends of the two rectangular frames 53 in the horizontal direction of the guide strip 23. A cleaning cotton 56 is fixedly installed on the opposite ends of the two rectangular frames 53 in the horizontal direction of the guide strip 23. The hydraulic cylinder 18 can be started during detection, and the hydraulic cylinder 18 will drive the electric telescopic rod 19 to extend and retract accordingly. At this time, the electric telescopic rod 19 will drive the fixed disk 21 to move downward. At this time, the fixed disk 21 will drive the mounting frame 42 and the threaded disk 41 to move downward. Since the threaded disk 41 is threadedly mounted in the three brackets 12, the threaded disk 41 will rotate between the three brackets 12 when moving downward, thereby driving the detection tube 51 to rotate and move downward. When the detection tube 51 is sleeved on the pressure reactor, the top of the pressure reactor will squeeze the four rectangular frames 53. At this time, the four rectangular frames 53 will be forced to slide toward the outside of the detection tube 51 in the third slide groove 52. At this time, the four groups of third springs 54 will also be deformed to generate elastic force. The four rectangular frames 53 will keep in contact with the outer wall of the pressure reactor. As the detection tube 51 continues to descend, the two cleaning cottons 56 will synchronously clean the outer wall of the pressure reactor, which can effectively reduce the interference of external impurities on the detection results.

[0043] Gas sensors 57 are provided at opposite ends of the two rectangular frames 53 in a direction perpendicular to the guide strip 23. The gas sensors 57 are electrically connected to an external control circuit. At the same time, the two groups of gas sensors 57 will also rotate and move downward along with the rectangular frames 53. When the cleaning cotton 56 cleans the outer wall of the pressure reactor, the two groups of gas sensors 57 will then detect the outer wall of the pressure reactor. The outer wall of the pressure reactor is detected in a spiral descending manner, achieving all-round and dead-angle detection coverage, improving the integrity and accuracy of the detection, saving detection time, and improving work efficiency.

[0044] An adsorption box 61 is symmetrically fixedly installed on the mobile base 11, an adsorption pump 67 is arranged in the upper end of the detection tube 51, the adsorption pump 67 is electrically connected to the external control circuit, an air inlet pipe 62 is installed on the adsorption pump 67, a second screw 63 is installed on the end of the air inlet pipe 62 away from the adsorption box 61, a second threaded ring 64 is threadedly installed on the second screw 63, activated carbon adsorption plates 65 are inserted in the two adsorption boxes 61, a connecting strip 66 is fixedly installed between the two activated carbon adsorption plates 65, and the connecting strip 66 is sleeved on the second screw 63. When gas leakage occurs during detection, the adsorption pump 67 can be started synchronously at this time, and the adsorption pump 67 will extract the gas inside the detection tube 51, and then inject it into the two adsorption boxes 61 through the air inlet pipe 62 and the second screw 63, and then the harmful substances in the gas will be removed through the adsorption effect of the two activated carbon adsorption plates 65, so that the device can simultaneously avoid the diffusion of harmful substances in the gas during detection and cause harm to the detection personnel, thereby enhancing the safety of detection; and when disassembling, the air inlet pipe 62 can be removed from the adsorption pump 67 first, and then the second threaded ring 64 can be screwed upward on the second screw 63 to release the limit, and the activated carbon adsorption plate 65 and the connecting strip 66 can be taken out at this time, so that the device also has the function of easy disassembly and installation.

[0045] Working principle:

[0046] The first step is to push the equipment to move when in use. When the pressure reactor for producing chemical anhydride slides into the interior of the mobile base 11, it will contact with the two groups of second rolling balls 25. The two groups of second rolling balls 25 will roll on the pressure reactor for producing chemical anhydride. At this time, the two guide bars 23 will be squeezed and move toward both ends. At this time, the two fixed bars 15 will push the two groups of circular rings 27 to slide on the two inner columns 26, and then the two groups of first springs 28 will deform accordingly. Under the deformation of the two groups of first springs 28, the position of the mobile base 11 will be adjusted until the force of the two groups of first springs 28 is uniform. At this time, the pressure reactor will be located inside the mobile base 11, in a position facing vertically with the fixed plate 21. The equipment can be automatically positioned when in use. Through the automatic positioning function of the equipment, there is no need for cumbersome manual adjustment, and the pressure reactor can be quickly and accurately placed in the correct position, saving time and labor costs.

[0047] In the second step, the hydraulic cylinder 18 can be started during the detection, and the hydraulic cylinder 18 will drive the electric telescopic rod 19 to extend and retract accordingly. At this time, the electric telescopic rod 19 will drive the fixed plate 21 to move downward, and the fixed plate 21 will drive the mounting frame 42 and the threaded plate 41 to move downward accordingly. Since the threaded plate 41 is threadedly installed in the three brackets 12, the threaded plate 41 will rotate between the three brackets 12 when moving downward, and then drive the detection tube 51 to rotate and move downward. When the detection tube 51 is sleeved on the pressure reactor, the top of the pressure reactor will squeeze the four rectangular frames 53. At this time, the four rectangular frames 53 will be forced to slide toward the outside of the detection tube 51 in the third slide groove 52. At this time, the four groups of third springs 54 will also be deformed to generate elastic force. The four rectangular frames 53 will keep in contact with the outer wall of the pressure reactor at this time. As the detection tube 51 continues to descend, the two cleaning cottons 56 will synchronously clean the outer wall of the pressure reactor, which can effectively reduce the interference of external impurities on the detection results.

[0048] The third step, at the same time, the two groups of gas sensors 57 will also rotate and move downward with the rectangular frame 53. After the cleaning cotton 56 cleans the outer wall of the pressure reactor, the two groups of gas sensors 57 will immediately detect the outer wall of the pressure reactor, and then display the value on the display screen. If there is a gas leakage problem, it can be detected by the gas sensor 57 after disassembly. The outer wall of the pressure reactor is detected in a spiral descending manner, which realizes all-round and no-dead-angle detection coverage, improves the integrity and accuracy of the detection, saves detection time, and improves work efficiency;

[0049] In the fourth step, when a gas leak occurs during the detection, the adsorption pump 67 can be started synchronously. At this time, the adsorption pump 67 will extract the gas inside the detection tube 51, and then inject it into the two adsorption boxes 61 through the air inlet pipe 62 and the second screw 63. Then, the harmful substances in the gas are removed through the adsorption effect of the two activated carbon adsorption plates 65, so that the equipment can simultaneously avoid the diffusion of harmful substances in the gas during the detection, causing harm to the detection personnel, and enhancing the safety of the detection; and when disassembling, the air inlet pipe 62 can be removed from the adsorption pump 67 first, and then the second threaded ring 64 can be screwed upward on the second screw 63 to release the limit, and the activated carbon adsorption plate 65 and the connecting strip 66 can be taken out at this time, so that the equipment also has the function of easy disassembly and installation;

[0050] The fifth step is to move the two circular rings 27 on the inner column 26 to both ends during installation. At this time, the two first springs 28 will be compressed. Then the guide bar 23 can be inserted into the fixed bar 15. At the same time, the inner column 26 will be inserted into the slot 16. The two circular rings 27 will be located at both ends of the fixed bar 15 respectively. At this time, the two dovetail blocks 32 will also move accordingly. The two sliding columns 33 will be inserted into the U-shaped frame 35 and the circular grooves in the bracket 12 and the movable base 11. At this time, the two second springs 34 will also contact the two U-shaped frames 35. Then the fixed plate 21 can be placed in the placement groove 44. At this time, the three first screws 46 can be inserted into the three second sliding grooves 43 respectively, and then the first threaded ring 47 is used to complete the fixation. At this time, the first rolling balls 22 installed on both sides of the fixed plate 21 will contact the placement groove 44 and the inner wall of the installation plate 45. At this time, the installation will be completed. The modular installation method is adopted to facilitate the disassembly, maintenance and replacement of various components at a later stage.

[0051] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A leak detector for a pressure reactor in the production of chemical anhydrides, comprising a mobile base (11), wherein three brackets (12) are fixedly mounted on the upper end of the mobile base (11), characterized in that: The three brackets (12) are arranged in a U shape, two opposite brackets (12) are each provided with a first inner groove (13), another bracket (12) is provided with a second inner groove (14), a fixing strip (15) is fixedly installed in the inner wall of the two first inner grooves (13), and a slot (16) is provided inside the two fixing strips (15); A fixing frame (17) is fixedly mounted on the upper ends of the three brackets (12); a hydraulic cylinder (18) is fixedly mounted on the fixing frame (17); an electric telescopic rod (19) is mounted on the output end of the hydraulic cylinder (18); a fixing plate (21) is fixedly mounted on the lower end of the electric telescopic rod (19); and first rolling balls (22) are provided at both upper and lower ends of the fixing plate (21); Positioning mechanisms are provided inside the two first inner grooves (13); The positioning mechanism comprises a guide bar (23), wherein the two guide bars (23) are respectively slidably mounted in the two first inner grooves (13), the two guide bars (23) are each provided with a first slide groove (24), the two fixed bars (15) are respectively arranged in the two first slide grooves (24), the two guide bars (23) are each provided with a second rolling ball (25) on the opposite ends, the inner walls of the two first slide grooves (24) are each fixedly mounted with an inner column (26), and the two inner columns (26) are each symmetrically slidably mounted with a circular ring (27).

2. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 1, characterized in that: The two groups of circular rings (27) are both fixedly mounted with first springs (28), and one end of the two groups of first springs (28) away from the two groups of circular rings (27) is respectively fixedly connected to the inner walls of the two first sliding grooves (24); The lower ends of the two guide bars (23) are symmetrically provided with dovetail grooves (31), and dovetail blocks (32) are slidably installed inside the two groups of dovetail grooves (31).

3. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 2, characterized in that: The lower ends of the two groups of dovetail blocks (32) are fixedly mounted with sliding columns (33), and the two groups of sliding columns (33) are sleeved with second springs (34); Wherein, U-shaped frames (35) are symmetrically fixedly installed in the inner walls of the two first inner grooves (13), and each group of the U-shaped frames (35) is symmetrically arranged with the fixing bar (15) as the central axis.

4. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 3, characterized in that: The upper ends of the two groups of the second springs (34) are fixedly connected to the two groups of dovetail blocks (32), the lower ends of the two groups of the second springs (34) are fitted to the two groups of U-shaped frames (35), and the two groups of the sliding columns (33) are slidably installed in the two groups of U-shaped frames (35); The first inner groove (13) and the movable base (11) are provided with circular grooves adapted to the two groups of sliding columns (33).

5. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 1, characterized in that: A threaded disk (41) is threadedly mounted on the three brackets (12); a mounting frame (42) is fixedly mounted on the upper end of the threaded disk (41); and a placement groove (44) is provided at the center of the upper end of the mounting frame (42); The upper end of the mounting frame (42) is provided with three second sliding grooves (43), and the three second sliding grooves (43) are evenly distributed with the placement groove (44) as the center point.

6. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 5, characterized in that: A mounting plate (45) is arranged above the mounting frame (42), and first screw rods (46) are evenly and equidistantly fixedly mounted on the lower end of the mounting plate (45), and three of the first screw rods (46) are respectively inserted into three second sliding grooves (43); A first threaded ring (47) is threadedly mounted on each of the three first screw rods (46), and a detection cylinder (51) is fixedly mounted on the inner wall of the threaded disk (41).

7. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 6, characterized in that: The side wall of the detection cylinder (51) is evenly and equidistantly provided with third sliding grooves (52), and rectangular frames (53) are slidably installed inside the four third sliding grooves (52); A third spring (54) is fixedly installed in the inner wall of each of the four rectangular frames (53), and one end of each of the third springs (54) away from the rectangular frame (53) is fixedly connected to the detection cylinder (51).

8. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 7, characterized in that: A scraper (55) is centrally symmetrically mounted on the opposite ends of the two rectangular frames (53) in the horizontal direction of the guide strip (23), and a cleaning cotton (56) is fixedly mounted on the opposite ends of the two rectangular frames (53) in the horizontal direction of the guide strip (23); Gas sensors (57) are arranged on opposite ends of two rectangular frames (53) in a direction perpendicular to the guide strip (23).

9. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 6, characterized in that: An adsorption box (61) is symmetrically fixedly mounted on the movable base (11), an adsorption pump (67) is provided in the upper end of the detection cylinder (51), and an air intake pipe (62) is installed on the adsorption pump (67); A second screw (63) is installed on one end of the air inlet pipe (62) away from the adsorption box (61).

10. A leak detector for a pressure reactor for producing chemical anhydride as claimed in claim 9, characterized in that: A second threaded ring (64) is threadedly mounted on the second screw rod (63), and activated carbon adsorption plates (65) are inserted into the two adsorption boxes (61); A connecting bar (66) is fixedly installed between the two activated carbon adsorption plates (65), and the connecting bar (66) is sleeved on the second screw rod (63).

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