Multifunctional flange protective sleeve

Abstract

The utility model relates to the technical field of flange protection equipment, in particular to a multifunctional flange protection sleeve which comprises an upper sleeve body, a lower sleeve body, a fixing block, a fastening bolt, a connecting plate, an arc-shaped hopper, a protection plate, a fixing plate, a pressure sensor, a pressing rod and a spring, a plurality of T-shaped rods are fixedly connected to the inner bottom wall of the lower sleeve body, and a plurality of through holes are formed in the surface of the arc-shaped hopper. The inner walls of the plurality of through holes are in sliding connection with the surfaces of the plurality of corresponding T-shaped rods respectively, and a chemical sensor is fixedly mounted on the inner bottom wall of the lower sleeve; according to the utility model, through the arrangement of the partition device, the pressure sensor and the chemical sensor can be blocked, step-by-step detection is realized, the pressure sensor can be protected, the pressure sensor is prevented from being damaged due to corrosion, and the problems that the sensing patch is not protected when detection is carried out through the sensing patch and the sensing patch cannot be protected when strong acid and strong alkali are encountered are solved. And a pressure sensor arranged in the sensing patch may be damaged due to corrosion.

Description

Technical Field

[0001] The utility model relates to the technical field of flange protection equipment, in particular to a multifunctional flange protection sleeve. Background Technique

[0002] Flange protection sleeves are usually made of materials such as rubber, plastic or metal, and have good sealing performance and chemical stability. Flange protection sleeves are widely used in various industrial equipment such as pipelines and containers, especially in industries such as chemical industry, petroleum, natural gas, metallurgy, and electric power, which are of great significance for protecting equipment safety and personnel health.

[0003] For example, the Chinese patent with the publication number of CN220670863U discloses a sealing protection sleeve for flange leakage detection, including an annular pressing strip. An induction patch is arranged on the inner side wall of the annular pressing strip. Sealing structures are arranged at the ports at both ends of the annular pressing strip, and the induction patch is placed between the sealing structures at both ends. This patent can seal the flange gasket seam; can real-time master the leakage situation at the flange connection; has good corrosion resistance, high strength and hardness; good sealing effect; and is convenient to install.

[0004] However, although this patent is provided with an induction patch to detect the leakage situation at the flange connection in real time, when detecting through the induction patch, the induction patch is not protected. When encountering strong acids and alkalis, the pressure sensor arranged inside the induction patch may be corroded and damaged. Therefore, a multifunctional flange protection sleeve is proposed to solve the above problems. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model proposes a multifunctional flange protection sleeve. Through the arranged partition device, the pressure sensor and the chemical sensor can be blocked to realize step-by-step detection, and the pressure sensor can be protected to avoid being corroded and damaged.

[0006] The technical solution for achieving the purpose of the present utility model is as follows: A multifunctional flange protective sleeve, including an upper sleeve, one end of the upper sleeve is rotatably connected to one end of a lower sleeve through a rotating shaft. Fixed blocks are fixedly connected to the ends of the upper sleeve and the lower sleeve away from the rotating shaft. The two fixed blocks are detachably connected by two fastening bolts in a threaded manner. Two connecting plates are slidably arranged on the inner wall of the lower sleeve. The same arc-shaped hopper is fixedly connected to the opposite surfaces of the two connecting plates. Protective plates are fixedly connected to both sides of the arc-shaped hopper. Two fixing plates are arranged on the inner wall of the lower sleeve. Pressure sensors are fixedly installed on the upper surfaces of the two fixing plates. Pressure rods are fixedly connected to the lower surfaces of the two connecting plates. Springs are sleeved on the surfaces of the two pressure rods. The two ends of the two springs are fixedly connected to the opposite surfaces of the connecting plates and the fixing plates respectively. A plurality of T-shaped rods are fixedly connected to the inner bottom wall of the lower sleeve. A plurality of through holes are formed on the surface of the arc-shaped hopper. The inner walls of the plurality of through holes are respectively slidably connected to the surfaces of the corresponding plurality of T-shaped rods. A chemical sensor is fixedly installed on the inner bottom wall of the lower sleeve.

[0007] In some embodiments, two dovetail grooves are formed on the inner wall of the lower sleeve. A dovetail block one and a dovetail block two are slidably connected to the inner walls of the two dovetail grooves respectively. The opposite surfaces of the two dovetail block ones are respectively fixedly connected to the opposite surfaces of the two connecting plates.

[0008] In some embodiments, damping sheets are fixedly installed on the opposite surfaces of the two dovetail block twos. The opposite surfaces of the two dovetail blocks are respectively fixedly connected to the opposite surfaces of the two fixing plates.

[0009] In some embodiments, corrosion-resistant coatings are arranged on the inner walls of the lower sleeve and the upper sleeve. Sealing strips are fixedly installed on the opposite surfaces of the lower sleeve and the upper sleeve.

[0010] In some embodiments, triangular reflective strips are arranged on the surface of the upper sleeve. Two pipelines are arranged inside the upper sleeve and the lower sleeve. The opposite surfaces of the two pipelines are fixedly communicated through a flange body.

[0011] Compared with the prior art, the remarkable advantages of the present utility model are:

[0012] First: When there is a leak at the connection of the flange body of the present utility model, the leaked substance will leak to the lower sleeve under the action of gravity. The leaked liquid will be stored in the arc-shaped bucket. When the arc-shaped bucket is subjected to the weight of the leaked substance, it will descend inside the dovetail groove through the first dovetail block. Then, the arc-shaped bucket drives the connecting plate to descend, and the descending connecting plate drives the pressure rod to descend. The descent of the pressure rod will contact the pressure sensor, thereby sensing the change in pressure inside the protective sleeve. Through the design of the arc-shaped bucket, it is possible to prevent the leaked substance from directly contacting the pressure sensor, avoiding corrosion of the pressure sensor caused by the leaked substance. During the descent of the arc-shaped bucket, the through hole opened at the bottom of the arc-shaped bucket will slide on the surface of the T-shaped rod. When it slides to the area where the diameter of the lower part of the T-shaped rod is thinner, the inner wall of the through hole will no longer fit the surface of the T-shaped rod, and the leaked substance will fall from the inside of the arc-shaped bucket to the inside of the lower sleeve. At this time, the leaked substance can be detected by the chemical sensor;

[0013] Second: The present utility model can fix the upper sleeve and the lower sleeve through the provided fixing blocks and fastening bolts, thereby protecting the flange body. A sealing strip is provided at the contact part between the protective sleeve and the pipeline to ensure no leakage point and prevent strong acids and alkalis from penetrating. The triangular reflective strips provided on the upper sleeve can remind workers to pay attention to the safety of the flange part;

[0014] Third: Through the design of the second dovetail block, the damping piece and the dovetail groove, the present utility model can directly slide the arc-shaped bucket out of the inside of the lower sleeve after the upper sleeve and the lower sleeve are opened. At this time, it is convenient to calibrate the pressure sensor and the chemical sensor. The function of the damping piece can make the sliding friction force of the second dovetail block on the inner wall of the dovetail groove greater than the sliding friction force of the first dovetail block. Therefore, when the arc-shaped bucket is reset by the spring, the second dovetail block can remain stationary.

[0015] It solves the problem that although the prior art is provided with an induction patch to detect the leakage at the flange connection in real time, however, when detecting through the induction patch, the induction patch is not protected. When encountering strong acids and alkalis, the pressure sensor set inside the induction patch may be corroded and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further explains the present utility model in conjunction with the drawings and embodiments:

[0017] Figure 1 is a three-dimensional structure schematic diagram provided by the present utility model in an embodiment;

[0018] Figure 2 is a connection flange structure schematic diagram provided by the present utility model in an embodiment;

[0019] Figure 3 is a sectional structure schematic diagram of the protective sleeve provided by the present utility model in an embodiment;

[0020] Figure 4 This is provided in an embodiment of the present utility model Figure 3 Schematic diagram of the enlarged structure at position A in

[0021] Explanation of reference numerals in the drawings:

[0022] 1. Upper sleeve; 2. Lower sleeve; 3. Triangular reflective strip; 4. Fixed block; 5. Fastening bolt; 6. Sealing strip; 7. Pipeline; 8. Flange body; 9. T-shaped rod; 10. Chemical sensor; 11. Corrosion-resistant coating; 12. Dovetail groove; 13. First dovetail block; 14. Second dovetail block; 15. Connecting plate; 16. Fixed plate; 17. Arc-shaped bucket; 18. Pressing rod; 19. Spring; 20. Pressure sensor; 21. Protective plate; 22. Damping sheet. Detailed implementation manners

[0023] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides a multifunctional flange protective sleeve through improvement. The technical solution of the present utility model is as follows:

[0025] As Figures 1 - 4As shown in the figure, a multifunctional flange protective cover includes an upper sleeve 1. One end of the upper sleeve 1 is rotatably connected to one end of a lower sleeve 2 through a rotating shaft. The upper sleeve 1 and the lower sleeve 2 are integrally rotatably arranged. Fixed blocks 4 are fixedly connected to the ends of the upper sleeve 1 and the lower sleeve 2 away from the rotating shaft. The two fixed blocks 4 are threadedly and detachably connected by two fastening bolts 5. The two fixed blocks 4 provide a fixed space for the connection between the upper sleeve 1 and the lower sleeve 2. Two connecting plates 15 are slidably arranged on the inner wall of the lower sleeve 2. The same arc-shaped hopper 17 is fixedly connected to the opposite surfaces of the two connecting plates 15. Protective plates 21 are fixedly connected to both sides of the arc-shaped hopper 17. The design of the protective plates 21 can prevent the leaked liquid from overflowing on both sides of the arc-shaped hopper 17. Two fixing plates 16 are arranged on the inner wall of the lower sleeve 2. Pressure sensors 20 are fixedly installed on the upper surfaces of the two fixing plates 16. The pressure sensors 20 are prior art. Pressure rods 18 are fixedly connected to the lower surfaces of the two connecting plates 15. Springs 19 are sleeved on the surfaces of the two pressure rods 18. The two ends of the two springs 19 are fixedly connected to the opposite surfaces of the connecting plates 15 and the fixing plates 16 respectively. When the arc-shaped hopper 17 descends, the pressure rods 18 can be driven to descend synchronously through the pressure rods 18, so that the pressure sensors 20 are subjected to pressure changes. A plurality of T-shaped rods 9 are fixedly connected to the inner bottom wall of the lower sleeve 2. The purpose of the design of the T-shaped rods 9 is to introduce the leaked substances on the arc-shaped hopper 17 into the lower sleeve 2 through the diameter difference of the two parts of the T-shaped rods 9 for detection by a chemical sensor 10. The chemical sensor 10 is a pH sensor, which is a special sensor for measuring the acidity and alkalinity of a solution. A plurality of through holes are formed on the surface of the arc-shaped hopper 17. The inner walls of the plurality of through holes are respectively slidably connected to the surfaces of the corresponding plurality of T-shaped rods 9. The chemical sensor 10 is fixedly installed on the inner bottom wall of the lower sleeve 2.

[0026] As Figure 3 and Figure 4 shown, in an embodiment, two dovetail grooves 12 are formed on the inner wall of the lower sleeve 2. A dovetail block one 13 and a dovetail block two 14 are slidably connected to the inner walls of the two dovetail grooves 12 respectively. The opposite surfaces of the two dovetail blocks one 13 are fixedly connected to the opposite surfaces of the two connecting plates 15 respectively.

[0027] Damping sheets 22 are fixedly installed on the opposite surfaces of the two dovetail blocks two 14. The opposite surfaces of the two dovetail blocks are fixedly connected to the opposite surfaces of the two fixing plates 16 respectively. The function of the damping sheets 22 can make the sliding friction of the dovetail block two 14 on the inner wall of the dovetail groove 12 greater than the sliding friction of the dovetail block one 13. Therefore, when the arc-shaped hopper 17 is reset by the spring 19, the dovetail block two 14 can remain stationary.

[0028] As Figure 1 and Figure 3As shown, in one embodiment, corrosion-resistant coatings 11 are provided on the inner walls of the lower sleeve 2 and the upper sleeve 1. Sealing strips 6 are fixedly installed on the opposite surfaces of the lower sleeve 2 and the upper sleeve 1. Sealing strips 6 are provided at the contact part between the protective sleeve and the pipeline 7 to ensure no leakage points and prevent strong acids and alkalis from penetrating.

[0029] Triangle reflective strips 3 are provided on the surface of the upper sleeve 1. Two pipelines 7 are provided inside the upper sleeve 1 and the lower sleeve 2. The opposite surfaces of the two pipelines 7 are fixedly connected through a flange body 8. The triangle reflective strips 3 provided on the upper sleeve 1 can remind workers to pay attention to the safety of the flange part.

[0030] The specific working method is as follows: When protecting the flange, first put the upper sleeve 1 and the lower sleeve 2 on the flange body 8, and then close the upper sleeve 1 and the lower sleeve 2 to the position shown in the attached Figure 1 figure. The upper sleeve 1 and the lower sleeve 2 can be fixed by the set fixing blocks 4 and fastening bolts 5, so as to protect the flange body 8. Sealing strips 6 are provided at the contact part between the protective sleeve and the pipeline 7 to ensure no leakage points and prevent strong acids and alkalis from penetrating. The triangle reflective strips 3 provided on the upper sleeve 1 can remind workers to pay attention to the safety of the flange part. When there is a leak at the connection of the flange body 8, the leaked substance will leak to the lower sleeve 2 along with gravity. The leaked liquid will be stored in the arc-shaped hopper 17. When the arc-shaped hopper 17 is affected by the weight of the leaked substance, it will descend inside the dovetail groove 12 through the dovetail block one 13. Then the arc-shaped hopper 17 drives the connecting plate 15 to descend. The descent of the connecting plate 15 drives the pressure rod 18 to descend. The descent of the pressure rod 18 will contact the pressure sensor 20, so as to sense the change of the pressure inside the protective sleeve. Through the design of the arc-shaped hopper 17, it can be avoided that the leaked substance directly contacts the pressure sensor 20, resulting in corrosion of the pressure sensor 20 caused by the leaked substance. During the descent of the arc-shaped hopper 17, the through hole opened at the bottom of the arc-shaped hopper 17 will slide on the surface of the T-shaped rod 9. When it slides to the area where the lower diameter of the T-shaped rod 9 is thinner, the inner wall of the through hole will no longer fit the surface of the T-shaped rod 9, and the leaked substance will fall from the inside of the arc-shaped hopper 17 to the inside of the lower sleeve 2. At this time, the leaked substance can be detected by the chemical sensor 10. The pressure sensor 20 and the chemical sensor 10 are connected to an external monitoring system. The monitoring system can display the state inside the protective sleeve in real time and give an audible and visual alarm when a leak occurs, reminding workers to take measures in time. Through the design of the dovetail block two 14, the damping piece 22 and the dovetail groove 12, after the upper sleeve 1 and the lower sleeve 2 are opened, the arc-shaped hopper 17 can be directly slid out from the inside of the lower sleeve 2. At this time, it is convenient to calibrate the pressure sensor 20 and the chemical sensor 10.

[0031] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. The matters not covered in the present utility model belong to the common general knowledge of those skilled in the art.

Claims

1. A multifunctional flange protective sleeve, comprising an upper sleeve (1), characterized in that: One end of the upper sleeve (1) is rotatably connected to one end of the lower sleeve (2) via a rotating shaft; the ends of the upper sleeve (1) and the lower sleeve (2) away from the rotating shaft are fixedly connected to a fixing block (4); the two fixing blocks (4) are detachably connected by threads via two fastening bolts (5); the inner wall of the lower sleeve (2) is slidably provided with two connecting plates (15); the opposite surfaces of the two connecting plates (15) are fixedly connected to the same arc-shaped bucket (17); both sides of the arc-shaped bucket (17) are fixedly connected to a guard plate (21); the inner wall of the lower sleeve (2) is provided with two fixing plates (16); the upper surfaces of the two fixing plates (16) are A pressure sensor (20) is fixedly installed, and the lower surfaces of the two connecting plates (15) are fixedly connected to pressure rods (18), and the surfaces of the two pressure rods (18) are sleeved with springs (19), and the two ends of the two springs (19) are respectively fixedly connected to the opposite surfaces of the connecting plates (15) and the fixed plate (16). The inner bottom wall of the lower sleeve (2) is fixedly connected to a plurality of T-shaped rods (9), and the surface of the arc-shaped bucket (17) is provided with a plurality of through holes, and the inner walls of the plurality of through holes are respectively slidably connected to the surfaces of the corresponding plurality of T-shaped rods (9), and the inner bottom wall of the lower sleeve (2) is fixedly installed with a chemical sensor (10).

2. The multifunctional flange protective sleeve according to claim 1, characterized in that: The inner wall of the lower sleeve (2) is provided with two dovetail grooves (12), the inner walls of the two dovetail grooves (12) are slidably connected with dovetail blocks 1 (13) and 14, and the opposite surfaces of the two dovetail blocks 1 (13) are fixedly connected to the opposite back surfaces of the two connecting plates (15).

3. The multifunctional flange protective sleeve according to claim 2, characterized in that: The opposite surfaces of the two dovetail blocks (14) are both fixedly mounted with damping sheets (22), and the opposite surfaces of the two dovetail blocks are respectively fixedly connected to the opposite surfaces of the two fixing plates (16).

4. The multifunctional flange protective sleeve according to claim 1, characterized in that: The inner walls of the lower sleeve (2) and the upper sleeve (1) are both provided with a corrosion-resistant coating (11), and the opposite surfaces of the lower sleeve (2) and the upper sleeve (1) are both fixedly mounted with sealing strips (6).

5. The multifunctional flange protective sleeve according to claim 4, characterized in that: The surface of the upper sleeve (1) is provided with a triangular reflective strip (3), and two pipes (7) are provided inside the upper sleeve (1) and the lower sleeve (2), and the opposite surfaces of the two pipes (7) are fixedly connected through a flange body (8).

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