Chemical production self-checking device for explosion-proof distillation retort

Abstract

The utility model relates to the technical field of chemical production equipment, in particular to a chemical production self-checking device for an explosion-proof distillation retort. A sealing mechanism is arranged on the inner side of the support and comprises a sealing ring, the sealing ring is fixedly connected to the bottom end of the support, a monitoring cylinder is fixedly connected to the top end of the sealing ring and communicates with the bottom end of the sealing ring, and a piston is slidably connected into the monitoring cylinder. Through the arranged piston type monitoring structure, gas pressure of a sealing structure, namely a monitoring area, can be monitored in real time through a piston structure, so that when gas pressure fluctuates due to leakage, an alarm can be given to leaked gas in time, the warning effect on workers is improved, meanwhile, the piston type monitoring structure is relatively simple, and the working efficiency is improved. And daily maintenance operation of workers can be facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production equipment, in particular to a chemical production self-inspection device for an explosion-proof distillation tank. Background Art

[0002] Distillation is a thermodynamic separation process that utilizes the different boiling points of components in a mixed liquid or liquid-solid system to evaporate the low-boiling-point component, which is then condensed to separate the entire component in a unit operation process. It is a combination of evaporation and condensation unit operations. Existing explosion-proof distillation tanks with self-inspection functions have a tank cover fixed to the tank by screws and sealed with a gasket. Although the tank cover and the gasket are regularly checked for sealing, leakage may occur during the inspection interval. For chemical explosion-proof distillation tanks, the objects handled are often toxic, which creates a safety hazard.

[0003] The utility model patent with the publication number CN 219963968 U discloses an explosion-proof distillation tank with a self-checking function. In this scheme, a tank body and a tank cover are provided, and the tank body and the tank cover are fixedly connected by multiple screws. The top surface of the tank body is fixed with multiple first fixing plates, and the top surface of the tank body is also provided with a fixing component and a detection component, and the top surface of the tank body is provided with multiple slots. When a leak occurs, the leaked gas enters between the partitions, causing the diaphragm between the partitions to expand, blocking the path between the infrared transmitter and the infrared receiver, so that the infrared receiver cannot receive the signal, thereby constantly detecting the air tightness of the explosion-proof distillation tank, and solving the problem of leakage during the regular detection interval, thereby creating a safety hazard.

[0004] However, there are still some shortcomings in the above scheme. In the above scheme, the leakage self-checking operation is performed through the diaphragm and several infrared detection structures. The infrared detection structure is inconvenient to maintain when it is used in large quantities. When a single infrared detection structure fails, it is impossible to timely alarm the corresponding leakage point. At the same time, a large number of infrared detection structures are expensive, which affects the self-checking of the explosion-proof distillation tank. In view of this, we propose a chemical production self-checking device for explosion-proof distillation tanks. Utility Model Content

[0005] The purpose of the utility model is to provide a chemical production self-inspection device for explosion-proof distillation tanks, which solves the problems in the prior art of performing self-inspection operations on leakage through diaphragms and a plurality of infrared detection structures, the infrared detection structures being inconvenient to maintain when used in large quantities, and the inability to promptly alarm the corresponding leakage point when a single infrared detection structure fails.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A chemical production self-inspection device for an explosion-proof distillation tank, comprising a bracket;

[0008] A sealing mechanism is provided on the inner side of the bracket, and the sealing mechanism includes a sealing ring, which is fixedly connected to the bottom end of the bracket, and a monitoring tube is fixedly connected to the top of the sealing ring. The monitoring tube is communicated with the bottom end of the sealing ring, and a piston is slidably connected inside the monitoring tube.

[0009] Preferably, the bottom end of the bracket is connected to a distillation tank, the top end of the distillation tank is connected to a tank cover, and the sealing ring is movably connected to the top edge of the tank cover.

[0010] Preferably, a sealing seat is fixedly connected to the top of the distillation tank and the inner side of the bottom of the sealing ring, a sealing block corresponding to the sealing seat structure is fixedly connected to the top of the tank cover and the outer side of the bottom of the sealing ring, and limiting blocks are fixedly connected on both sides of the sealing block and the inner side of the sealing seat.

[0011] Preferably, a screw sleeve is fixedly connected to the top of the monitoring tube, an adjusting block is meshingly connected to the inner side of the screw sleeve, the adjusting block is connected to the piston via a supporting rope, and corresponding contact springs are fixedly connected to the top of the piston and the top of the monitoring tube.

[0012] Preferably, a fastening mechanism is provided on the bracket, and the fastening mechanism includes a fastening plate, the fastening plate is fixedly connected to the side of the bracket, a positioning plate is slidably connected to the inner side of the fastening plate, and a positioning block corresponding to the positioning plate structure is fixedly connected to the side of the distillation tank.

[0013] Preferably, a return spring is fixedly connected to the inner side of the positioning plate, and a positioning groove with a wedge-shaped structure is provided on the outer side of the positioning plate, and the positioning groove corresponds to the positioning block structure.

[0014] Preferably, a connecting rod is connected to the inner side of the positioning plate, the connecting rod passes through the fastening plate, a disassembly frame is fixedly connected to the outer side of the fastening plate, a connecting rope is connected to the connecting rod, and the connecting rope passes through the disassembly frame and the connecting rod respectively.

[0015] By means of the above technical solution, the utility model provides a chemical production self-inspection device for explosion-proof distillation tanks. It has at least the following beneficial effects:

[0016] (1) The piston-type monitoring structure provided in the utility model can monitor the gas pressure of the sealing structure, i.e., the monitoring area, in real time through the piston structure, so that when the gas pressure fluctuates due to leakage, the leaked gas can be alarmed in time, thereby improving the warning effect for the staff. At the same time, the piston-type monitoring structure is relatively simple, which can facilitate the daily maintenance operations of the staff.

[0017] (2) The fastening mechanism of the utility model can conveniently install the device on the explosion-proof distillation tank to be self-inspected, and the disassembly structure can simultaneously disassemble the positioning plate used for fixing, thereby improving the disassembly efficiency of the self-inspection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 The internal structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 4 The internal structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 5 It is an enlarged schematic diagram of point A in the utility model.

[0024] In the figure: 1. bracket; 2. sealing mechanism; 201. sealing ring; 202. monitoring tube; 203. piston; 204. sealing seat; 205. sealing block; 206. limiting block; 207. screw sleeve; 208. adjusting block; 209. contact spring; 3. distillation tank; 4. tank cover; 5. fastening mechanism; 501. fastening plate; 502. positioning plate; 503. positioning block; 504. reset spring; 505. connecting rod; 506. disassembly frame; 507. connecting rope. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] A chemical production self-inspection device for explosion-proof distillation tanks, such as Figure 1-Figure 5As shown, it includes a bracket 1; the bottom end of the bracket 1 is connected to a distillation tank 3, the top end of the distillation tank 3 is connected to a tank cover 4, a sealing ring 201 is movably connected to the top edge of the tank cover 4, and a sealing mechanism 2 is provided on the inner side of the bracket 1, the sealing mechanism 2 includes a sealing ring 201, the sealing ring 201 is fixedly connected to the bottom end of the bracket 1, a monitoring tube 202 is fixedly connected to the top end of the sealing ring 201, the monitoring tube 202 is communicated with the bottom end of the sealing ring 201, and a piston 203 is slidably connected inside the monitoring tube 202, the bracket 1 can support the sealing ring 201 and adjust the position of the sealing ring 201, and the sealing mechanism 2 can adjust the gap between the distillation tank 3 and the tank cover 4 The distillation tank 3 is sealed so that leakage can be monitored in time. The diameter of the sealing ring 201 is close to the diameter of the tank cover 4, so the tank cover 4 can be sealed. The monitoring tube 202 can cooperate with the piston 203 and provide feedback in time when leakage occurs in the distillation tank 3. The sensitivity of the monitoring can be conveniently controlled by setting different diameters of the monitoring tube 202. The top of the distillation tank 3 and the inner side of the bottom of the sealing ring 201 are fixedly connected with a sealing seat 204. The top of the tank cover 4 and the outer side of the bottom of the sealing ring 201 are fixedly connected with a sealing block 205 corresponding to the structure of the sealing seat 204. Both sides of the sealing block 205 and the sealing seat 204 are fixedly connected. The inner side is fixedly connected with the limiting block 206, and the sealing seat 204 structure cooperates with the sealing block 205 to improve the sealing performance between the sealing ring 201 and the distillation tank 3 and the tank cover 4. At the same time, the sealing block 205 and the sealing seat 204 cooperate with the sealing ring 201 to form a cavity for storing gas and timely warn of leakage of the distillation tank 3 through the change of internal gas pressure. The top of the monitoring tube 202 is fixedly connected with a screw sleeve 207, and the inner side of the screw sleeve 207 is meshed with an adjusting block 208. The adjusting block 208 is connected to the piston 203 through a supporting rope. The top of the piston 203 and the top of the monitoring tube 202 are fixedly connected to each other. The corresponding contact spring piece 209 and the screw sleeve 207 structure can adjust the raising and lowering of the adjustment block 208. At the same time, the inner thread of the screw sleeve 207 cooperates with the thread of the adjustment block 208 to realize the self-locking of the adjustment block 208 after adjustment. The contact spring piece 209 structure can be connected to the external warning device. When the internal air pressure of the piston 203 rises, the contact spring piece 209 moves synchronously and connects the circuit, thereby realizing the automatic alarm operation. The adjustment block 208 structure can be raised and lowered during use, so that the distance between the two contact spring pieces 209 can be conveniently adjusted to realize the control of the monitoring sensitivity.

[0028] Example 2

[0029] like Figure 1-Figure 3As shown, a fastening mechanism 5 is provided on the bracket 1, and the fastening mechanism 5 includes a fastening plate 501, which is fixedly connected to the side of the bracket 1, and a positioning plate 502 is slidably connected to the inner side of the fastening plate 501, and a positioning block 503 corresponding to the positioning plate 502 structure is fixedly connected to the side of the distillation tank 3. The fastening mechanism 5 can conveniently install and fix the device on the distillation tank 3, and the fastening plate 501 can support the positioning plate 502. The fastening plate 501 and the bracket 1 can be limited by the positioning plate 502 and the positioning block 503 that cooperates with the positioning plate 502. A reset spring 504 is fixedly connected to the inner side of the positioning plate 502. A wedge-shaped positioning groove is provided on the outer side of the positioning plate 502. The positioning groove and the positioning block 503 structure correspond to each other. The positioning groove of the wedge structure can facilitate the positioning block 503 to slide upward along the positioning plate 502 and reset the positioning block 503. 03 is restricted in reverse movement, a connecting rod 505 is connected to the inner side of the positioning plate 502, and the connecting rod 505 is arranged through the fastening plate 501, and a disassembly frame 506 is fixedly connected to the outer side of the fastening plate 501, and a connecting rope 507 is connected to the connecting rod 505, and the connecting rope 507 is respectively arranged through the disassembly frame 506 and the connecting rod 505, and the positioning rod can conveniently move the positioning plate 502, so that when the bracket 1 is disassembled, the positioning plate 502 can be conveniently moved away from the positioning block 503. At the same time, the connecting rods 505 are connected by connecting ropes 507, and the connecting ropes 507 respectively pass through the disassembly frames 506 at both ends of the connecting rods 505, and the height of the disassembly frame 506 is higher than the connecting rod 505, and by tightening the connecting rope 507, the connecting rod 505 can be synchronously moved outwards under the drive of the connecting rope 507, so as to facilitate the disassembly of the entire bracket 1.

[0030] When the explosion-proof distillation tank chemical production self-inspection device of the utility model is in use, the sealing block 205 at the bottom of the sealing ring 201 and the sealing seat 204 are respectively matched with the sealing seat 204 at the top of the distillation tank 3 and the sealing block 205 at the top of the tank cover 4, and the sealing ring 201 can be installed on the distillation tank 3. When the sealing block 205 moves to the inside of the sealing seat 204, the limit on the inner side of the sealing seat 204 and the sealing block 205 can limit the disassembly of the sealing ring 201 to prevent the sealing ring 201 from falling off. At the same time, the sealing seat 204 and the sealing block 205 cooperate with each other to improve the sealing performance inside the sealing ring 201. When the bracket 1 is installed to the top of the distillation tank 3, the positioning plate 502 continues to move downward along the positioning block 503, and the positioning block 503 switches between the positioning grooves on the side of the positioning plate 502. When the installation is completed, the sealing block 205 and the sealing seat 2 04 pushes the sealing ring 201 and the bracket 1 upward through its own elasticity, and the synchronously moving positioning plate 502 is restricted by the positioning groove and the positioning block 503 to fix the bracket 1 on the distillation tank 3, and the monitoring tube 202 can monitor the leakage of the distillation tank 3. When leakage occurs, the air pressure inside the sealing ring 201 and the inside of the monitoring tube 202 increases, and the air pressure pushes the piston 203 to rise, and the contact spring piece 209 on the piston 203 and the contact spring piece 209 inside the monitoring tube 202 contact each other, thereby connecting the circuit of the alarm device, and the staff can be warned in time. When the bracket 1 needs to be disassembled, pull the connecting rope 507 at any point, and the entire connecting rope 507 will be tightened immediately, and the connecting rope 507 will drive the connecting rod 505 to move outward. After the positioning plate 502 is away from the positioning block 503, the bracket 1 can be easily removed from the distillation tank 3.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical production self-inspection device for an explosion-proof distillation tank, comprising a bracket (1), characterized in that: A sealing mechanism (2) is provided on the inner side of the bracket (1), and the sealing mechanism (2) comprises a sealing ring (201), the sealing ring (201) is fixedly connected to the bottom end of the bracket (1), a monitoring tube (202) is fixedly connected to the top end of the sealing ring (201), the monitoring tube (202) and the bottom end of the sealing ring (201) are communicated with each other, and a piston (203) is slidably connected inside the monitoring tube (202).

2. The chemical production self-inspection device for explosion-proof distillation tanks according to claim 1, characterized in that: The bottom end of the support (1) is connected to a distillation tank (3), the top end of the distillation tank (3) is connected to a tank cover (4), and the sealing ring (201) is movably connected to the top edge of the tank cover (4).

3. The chemical production self-inspection device for explosion-proof distillation tanks according to claim 2, characterized in that: A sealing seat (204) is fixedly connected between the top of the distillation tank (3) and the inner side of the bottom of the sealing ring (201); a sealing block (205) corresponding to the structure of the sealing seat (204) is fixedly connected between the top of the tank cover (4) and the outer side of the bottom of the sealing ring (201); and limiting blocks (206) are fixedly connected to both sides of the sealing block (205) and the inner side of the sealing seat (204).

4. The chemical production self-inspection device for explosion-proof distillation tanks according to claim 1, characterized in that: The top of the monitoring tube (202) is fixedly connected with a screw sleeve (207), the inner side of the screw sleeve (207) is meshedly connected with an adjustment block (208), the adjustment block (208) is connected to the piston (203) via a support rope, and the top of the piston (203) and the top of the monitoring tube (202) are fixedly connected with corresponding contact springs (209).

5. The chemical production self-inspection device for explosion-proof distillation tanks according to claim 1, characterized in that: The support (1) is provided with a fastening mechanism (5), the fastening mechanism (5) comprising a fastening plate (501), the fastening plate (501) being fixedly connected to a side surface of the support (1), a positioning plate (502) being slidably connected to the inner side of the fastening plate (501), and a positioning block (503) corresponding to the positioning plate (502) structure being fixedly connected to the side surface of the distillation tank (3).

6. The chemical production self-inspection device for explosion-proof distillation tanks according to claim 5, characterized in that: A return spring (504) is fixedly connected to the inner side of the positioning plate (502). A positioning groove with a wedge-shaped structure is provided on the outer side of the positioning plate (502). The positioning groove corresponds to the positioning block (503) structure.

7. The chemical production self-inspection device for explosion-proof distillation tanks according to claim 5, characterized in that: The inner side of the positioning plate (502) is connected to a connecting rod (505), and the connecting rod (505) is arranged through the fastening plate (501). The outer side of the fastening plate (501) is fixedly connected to a disassembly frame (506), and the connecting rod (505) is connected to a connecting rope (507), and the connecting rope (507) is arranged through the disassembly frame (506) and the connecting rod (505) respectively.

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