Safety protection cover of chemical pipeline

Abstract

The utility model provides a safety protective cover for a chemical pipeline, which belongs to the technical field of chemical pipelines and comprises an upper cover body and a lower cover body arranged below the upper cover body, a liquid level sensor is mounted on the outer wall of one side of the upper cover body, and two groups of symmetrical upper fixing seats are fixedly connected to the outer wall of the upper cover body. The outer wall of the upper side of the upper fixing base is fixedly connected with a supporting spring. According to the utility model, the liquid collecting groove formed in the lower cover body is matched with the collecting box, so that leaked liquid can be collected in time, the liquid is prevented from staying in the cover body for a long time and corroding the outer wall of a pipeline, and meanwhile, the liquid in the liquid collecting groove is prevented from flowing out together and being in contact with a human hand to cause injury after the collecting box is detached subsequently; and a piston arranged in the liquid collecting groove is matched with the liquid guide groove, so that the cover body can be prevented from being expanded due to increased pressure when the cover body is filled with liquid, and liquid in the cover body can be discharged in time, so that the stability of the pressure is ensured, and the sealing effect is prevented from being influenced due to the fact that the cover body is expanded due to overlarge pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical pipelines, in particular to a safety protective cover for a chemical pipeline. Background Art

[0002] The chemical pipeline safety protection cover plays a protective wrapping role on the chemical pipeline joints, wrapping them comprehensively. At the same time, the chemical pipeline safety protection cover can effectively prevent the accidental leakage and splashing of valves and fittings from causing harm to personnel and mechanical equipment. It is suitable for indoor and outdoor installation of high-temperature pipelines such as steam pipelines. It has excellent resistance to acids and alkalis, except hydrochloric acid. With the development needs of the state's safety supervision of the chemical industry, chemical pipeline safety protection covers have been widely used in daily chemical production. Flange protection covers can be selected according to the pipeline medium, pressure and flange process requirements to meet the different safety protection needs of different chemical companies.

[0003] In the prior art, the traditional protective cover is installed at the flange connection of the pipeline to prevent the liquid leaking from the connection from splashing around and causing damage to the surrounding equipment and personnel. The protective effect is single, and the leaked liquid is concentrated inside the cover and cannot be cleaned in time. The liquid can only be cleaned after the cover is disassembled, causing the liquid to stay inside the cover for a long time, causing corrosion to the outer wall of the pipeline immersed in the liquid. How to invent a safety protective cover for chemical pipelines to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a safety protective cover for a chemical pipeline, aiming to improve the problem that the inside of a traditional protective cover cannot clean the liquid in time, causing corrosion to the outer wall of the pipeline immersed in the liquid.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a safety protection cover for a chemical pipeline, comprising an upper cover body and a lower cover body arranged below the upper cover body, a liquid level sensor is installed on one side outer wall of the upper cover body, two groups of symmetrical upper fixing seats are fixedly connected to the outer wall of the upper cover body, a supporting spring is fixedly connected to the upper outer wall of the upper fixing seat, and semi-sealing rings are fixedly connected to the inner walls at both ends of the upper cover body;

[0007] The outer wall of the lower cover body is fixed with two groups of lower fixing seats aligned with the upper fixing seats, the lower fixing seats and the upper fixing seats are fixed by installing bolts and matching nuts, the outer wall of the lower cover body is fixedly connected with a sealing ring that is sealingly connected to the outer wall of the upper cover body, and the bottom inner wall of the lower cover body is provided with a liquid collecting tank.

[0008] Preferably, the detection head of the liquid level sensor extends into the inner wall of the upper cover body, and the liquid level sensor is wirelessly connected to the alarm of the monitoring terminal.

[0009] Preferably, the outer wall of the bolt is plugged into the inner walls of the upper fixing seat and the lower fixing seat, and the outer wall of the bolt is threadedly connected to the nut.

[0010] Preferably, the liquid collecting trough is a trough body slanting downward from the center to both sides, the inner wall of the liquid collecting trough is provided with a mounting groove, the inner wall of the mounting groove is threadedly connected with a mounting tube, one end of the mounting tube is connected and installed with a collection box, and the collection box is made of transparent material.

[0011] By adopting the above technical solution, the upper cover body and the lower cover body are sealed and installed at the connection of the chemical pipeline, and the overall fixation of the cover body is completed by the fixing seat and bolts. When liquid leaks at the connection, the liquid falls into the liquid collecting tank below. When the height of the leaked liquid is higher than the height of the installation pipe, the liquid enters the collection box for collection, thereby preventing the leaked liquid from corroding the outer wall of the pipeline.

[0012] Preferably, the inner walls of both sides of the liquid collecting tank close to the mounting tank are provided with a plurality of liquid guiding grooves, a connecting groove is provided between the liquid guiding grooves on the same side, a liquid discharge hole is provided at one end of the connecting groove, and a liquid discharge pipe is fixedly connected to the outer wall of the lower cover body close to the liquid discharge hole.

[0013] Preferably, the inner wall of the liquid guide groove is slidably connected to a piston, one end of the piston is fixedly connected to a piston rod slidably connected to the inner wall of the lower cover body, the outer wall of the piston rod is sleeved with a return spring fixedly connected to the bottom end of the liquid guide groove, one end of the multiple piston rods is fixedly connected to a connecting plate, and the outer wall of the connecting plate is fixedly connected to a handle.

[0014] By adopting the above technical solution, when the liquid in the collection box is full, the liquid will continue to leak and stay inside the cover body, and the liquid level will gradually rise with the passage of time. When the height of the liquid level is higher than the set value, the liquid level sensor receives a signal and transmits it to the terminal alarm to sound an alarm. When the maintenance personnel react slowly, the inside of the cover body is filled with leaked liquid. At this time, the liquid continues to leak, which will increase the internal pressure and squeeze the piston in the liquid guide groove to make it slide down. The liquid then flows out through the connecting groove and the liquid unloading hole, thereby maintaining the internal pressure and preventing the protective cover from being stretched open due to the leaked liquid due to untimely maintenance, thereby affecting the sealing effect.

[0015] The beneficial effects of the utility model are:

[0016] The liquid collecting tank opened on the lower cover body cooperates with the collecting box to collect the leaked liquid in time, preventing the liquid from staying inside the cover body for a long time and corroding the outer wall of the pipeline. At the same time, after the collecting box is removed later, the liquid in the liquid collecting tank is prevented from flowing out and causing harm to human hands. The piston arranged in the liquid collecting tank cooperates with the liquid guide groove to prevent the pressure from increasing and stretching the cover body when the cover body is full of liquid, and the liquid is discharged from the inside of the cover body in time, so as to ensure the stability of the pressure and prevent the cover body from being stretched due to excessive pressure, affecting the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of a safety shield for a chemical pipeline provided by an embodiment of the utility model;

[0019] Figure 2 This is an exploded view of a safety shield for a chemical pipeline provided by the embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the middle and lower cover of a safety protection cover for a chemical pipeline provided by the embodiment of the utility model;

[0021] Figure 4 This is a half-section view of the lower cover structure of a safety protection cover for a chemical pipeline provided by the embodiment of the utility model;

[0022] Figure 5 This is a safety protection cover for chemical pipelines provided by the utility model. Figure 4 A magnified view of the structure of area A.

[0023] In the figure: 1. upper cover; 2. liquid level sensor; 3. upper fixing seat; 4. supporting spring; 5. semi-sealing ring; 6. lower cover; 7. lower fixing seat; 8. sealing ring; 9. liquid collecting tank; 10. liquid guiding tank; 11. connecting tank; 12. liquid discharge hole; 13. return spring; 14. piston; 15. piston rod; 16. connecting plate; 17. handle; 18. mounting slot; 19. liquid discharge pipe; 20. collecting box; 21. mounting pipe; 22. bolt; 23. nut. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example, see Figure 1-Figure 5 A safety protection cover for a chemical pipeline comprises an upper cover body 1 and a lower cover body 6 arranged below the upper cover body 1, a liquid level sensor 2 is installed on one side outer wall of the upper cover body 1, two groups of symmetrical upper fixing seats 3 are fixedly connected to the outer wall of the upper cover body 1, a support spring 4 is fixedly connected to the upper outer wall of the upper fixing seat 3, and semi-sealing rings 5 ​​are fixedly connected to the inner walls of both ends of the upper cover body 1;

[0026] The outer wall of the lower cover body 6 is fixed with two groups of lower fixing seats 7 aligned with the upper fixing seat 3. The lower fixing seat 7 and the upper fixing seat 3 are fixed by installing bolts 22 and cooperating with nuts 23. The outer wall of the lower cover body 6 is fixedly connected with a sealing ring 8 that is sealed with the outer wall of the upper cover body 1. The bottom inner wall of the lower cover body 6 is provided with a liquid collecting tank 9.

[0027] Furthermore, the detection head of the liquid level sensor 2 extends into the inner wall of the upper cover body 1, the liquid level sensor 2 and the alarm of the monitoring terminal are wirelessly connected, the outer wall of the bolt 22 is plugged into the inner wall of the upper fixing seat 3 and the lower fixing seat 7, the outer wall of the bolt 22 is threadedly connected to the nut 23, the liquid collecting tank 9 is a tank body slanting downward from the center to both sides, and the inner wall of the liquid collecting tank 9 is provided with an installation groove 18, the inner wall of the installation groove 18 is threadedly connected with a mounting tube 21, one end of the mounting tube 21 is connected to a collection box 20 installed, and the collection box 20 is made of a transparent material.

[0028] It should be noted that: the upper cover body 1 and the lower cover body 6 are sealed and installed at the connection of the chemical pipeline, the bolt 22 is placed on the support spring 4 and pressed down so that one end of it passes through the lower fixing seat 7, and the bolt 22 is fixed by the nut 23. At the same time, under the action of the support spring 4, the upper fixing seat 3 is tightly abutted against the lower fixing seat 7, so that the semi-sealing ring 5 on the upper cover body 1 is tightly connected to the outer wall of the pipeline, and the sealing ring 8 on the lower cover body 6 is sealed and connected to the outer wall of the upper cover body 1. At the same time, the lower outer wall of the pipeline is sealed and connected on both sides to further improve the strength of the seal. When liquid leaks at the connection, the liquid falls into the liquid collecting tank 9 below and flows to both sides of the tank body. When the height of the liquid is higher than the height of the installation pipe 21, the liquid that continues to leak will flow into the collection box 20 through the installation pipe 21 for collection, and the leaked liquid is collected in time. By observing the liquid in the collection box 20, the leaking part can be inspected and repaired in time, and the leaked liquid can be prevented from corroding the outer wall of the pipeline.

[0029] Furthermore, a plurality of liquid guiding grooves 10 are provided on the inner walls on both sides of the liquid collecting tank 9 near the mounting groove 18, a connecting groove 11 is provided between the liquid guiding grooves 10 on the same side, a liquid discharge hole 12 is provided at one end of the connecting groove 11, a liquid discharge pipe 19 is fixedly connected to the outer wall of the lower cover body 6 near the liquid discharge hole 12, a piston 14 is slidably connected to the inner wall of the liquid guiding groove 10, one end of the piston 14 is fixedly connected to a piston rod 15 slidably connected to the inner wall of the lower cover body 6, an outer wall of the piston rod 15 is sleeved with a return spring 13 fixedly connected to the bottom end of the liquid guiding groove 10, one end of the plurality of piston rods 15 is fixedly connected to a connecting plate 16, and an outer wall of the connecting plate 16 is fixedly connected to a handle 17.

[0030] It should be noted that: when the liquid in the collection box 20 is full, the liquid will continue to leak and stay inside the cover body, and the liquid level will gradually rise with the passage of time. When the height of the liquid level is higher than the set value, the liquid level sensor 2 receives a signal and transmits it to the alarm of the terminal to sound an alarm. At this time, the maintenance personnel can discover it in time, pull the handle 17 to make the liquid inside the cover body flow out through the liquid discharge pipe 19, and then disassemble the cover body for inspection. When the maintenance personnel react slowly, the inside of the cover body is filled with the leaked liquid. At this time, the liquid continues to leak, which will increase the internal pressure and squeeze the piston 14 in the liquid guide groove 10 to make it slide down. The liquid then flows out through the connecting groove 11 and the liquid discharge hole 12, thereby maintaining the internal pressure and avoiding the protective cover from being stretched due to the leaked liquid that is not inspected in time, affecting the sealing effect.

[0031] The working principle of this safety protection cover for chemical pipelines:

[0032] The upper cover body 1 and the lower cover body 6 are sealed and installed at the connection of the chemical pipeline, and the bolt 22 is placed on the supporting spring 4 and pressed down so that one end thereof passes through the lower fixing seat 7. At this time, the bolt 22 is fixed by the nut 23, and at the same time, the upper fixing seat 3 is tightly abutted against the lower fixing seat 7 under the action of the supporting spring 4, so that the semi-sealing ring 5 on the upper cover body 1 is tightly connected to the outer wall of the pipeline, and at the same time, the sealing ring 8 on the lower cover body 6 is sealed and connected to the outer wall of the upper cover body 1, and at the same time, the lower outer wall of the pipeline is sealed and connected on both sides to improve the strength of the seal. When liquid leaks at the connection, the liquid falls into the liquid collecting tank 9 below and flows to both sides of the tank body. When the height of the liquid is higher than the height of the installation pipe 21, the liquid that continues to leak will flow into the collection box 20 through the installation pipe 21 for collection, and the leaked liquid is collected in time, and the liquid in the collection box 20 can be timely checked by observing the liquid in the collection box 20. The leakage is inspected and repaired, and at the same time, the leaked liquid is prevented from corroding the outer wall of the pipeline. When the liquid in the collection box 20 is full, the liquid continues to leak and will stay inside the cover body and the liquid level will gradually rise with the passage of time. When the height of the liquid level is higher than the set value, the liquid level sensor 2 receives the signal and transmits it to the alarm of the terminal to alarm. At this time, the maintenance personnel can discover it in time, pull the handle 17 to make the liquid inside the cover body flow out through the liquid discharge pipe 19, and then disassemble the cover body for inspection. When the maintenance personnel fail to inspect in time, the inside of the cover body is filled with the leaked liquid. At this time, the continued leakage of the liquid will increase the internal pressure, thereby squeezing the piston 14 in the liquid guide groove 10 to make it slide down, and then the liquid will flow out through the connecting groove 11 and the liquid discharge hole 12, thereby maintaining the internal pressure, avoiding the leakage of liquid caused by untimely inspection to cause the protective cover to open, affecting the sealing effect.

[0033] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0034] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A safety shield for a chemical pipeline, comprising an upper shield (1) and a lower shield (6) arranged below the upper shield (1), characterized in that: A liquid level sensor (2) is installed on one side outer wall of the upper cover body (1); two groups of symmetrical upper fixing seats (3) are fixedly connected to the outer wall of the upper cover body (1); support springs (4) are fixedly connected to the upper outer walls of the upper fixing seats (3); and semi-sealing rings (5) are fixedly connected to the inner walls at both ends of the upper cover body (1); The outer wall of the lower cover body (6) is fixed with two groups of lower fixing seats (7) aligned with the upper fixing seat (3); the lower fixing seats (7) and the upper fixing seat (3) are fixed by bolts (22) and nuts (23); the outer wall of the lower cover body (6) is fixedly connected with a sealing ring (8) sealed with the outer wall of the upper cover body (1); and the bottom inner wall of the lower cover body (6) is provided with a liquid collecting groove (9); The inner walls of the liquid collecting tank (9) on both sides close to the mounting tank (18) are provided with a plurality of liquid guiding grooves (10), the liquid guiding grooves (10) on the same side are connected with each other with a connecting groove (11), one end of the connecting groove (11) is provided with a liquid discharge hole (12), and the outer wall of the lower cover body (6) close to the liquid discharge hole (12) is fixedly connected with a liquid discharge pipe (19).

2. A safety shield for a chemical pipeline according to claim 1, characterized in that: The detection head of the liquid level sensor (2) extends into the inner wall of the upper cover body (1), and the liquid level sensor (2) is wirelessly connected to the alarm of the monitoring terminal.

3. A safety shield for a chemical pipeline according to claim 2, characterized in that: The outer wall of the bolt (22) is plugged into the inner walls of the upper fixing seat (3) and the lower fixing seat (7), and the outer wall of the bolt (22) is threadedly connected to the nut (23).

4. A safety shield for a chemical pipeline according to claim 3, characterized in that: The liquid collecting tank (9) is a tank body which is inclined downward from the center to both sides. The inner wall of the liquid collecting tank (9) is provided with a mounting groove (18). The inner wall of the mounting groove (18) is threadedly connected with a mounting tube (21). One end of the mounting tube (21) is connected and installed with a collection box (20). The collection box (20) is made of a transparent material.

5. A safety shield for a chemical pipeline according to claim 1, characterized in that: The inner wall of the liquid guiding groove (10) is slidably connected to a piston (14); one end of the piston (14) is fixedly connected to a piston rod (15) slidably connected to the inner wall of the lower cover (6); the outer wall of the piston rod (15) is sleeved with a return spring (13) fixedly connected to the bottom end of the liquid guiding groove (10); one end of a plurality of the piston rods (15) is fixedly connected to a connecting plate (16); the outer wall of the connecting plate (16) is fixedly connected to a handle (17).

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