Compensator with leakage alarm

Abstract

The utility model relates to a compensator with a leakage alarm function, which is provided with a corrugated pipe, the corrugated pipe comprises a corrugated section and a fixed section, a first connecting flange and a second connecting flange are respectively and fixedly arranged on the fixed section at two ends of the corrugated pipe, a fixed seat is fixedly arranged on the fixed section of the corrugated pipe, and the compensator is further provided with an outer cylinder sleeved on the outer wall of the corrugated pipe. Baffles are fixedly arranged at the two ends of the outer cylinder. A plurality of open grooves are formed in the fixed seat, sliding grooves are formed in the side walls of the open grooves, extension plates are fixedly arranged on the baffles, sliding blocks are fixedly arranged on the extension plates, the outer cylinder is arranged on the fixed seat in a sliding mode through sliding fit of the sliding blocks and the sliding grooves, and the interior of the outer cylinder makes contact with the fixed seat through the baffles to form a closed space; according to the utility model, when the corrugated pipe leaks, maintenance reminding can be given in time, so that the leakage is prevented from becoming larger.

Description

Technical Field

[0001] The utility model relates to a compensator with a leakage alarm. Background Art

[0002] A compensator, also known as an expansion joint or telescopic joint, is a compensating element consisting of a bellows (the working element) and accessories such as end pipes, brackets, flanges, and conduits. It utilizes the effective expansion and contraction of the bellows to absorb dimensional changes caused by thermal expansion and contraction in pipelines, conduits, and containers, or to compensate for axial, lateral, and angular displacement. It offers advantages such as reliable operation, excellent performance, and a compact structure.

[0003] After the compensator has been performing expansion and contraction compensation for a long time, cracks will appear on the bellows of the compensator after multiple expansions and contractions. When the crack depth reaches a certain level, the material in the bellows will leak out from the cracks. After the material in the bellows leaks out, if it is not discovered and maintained in time, the transportation of the material in the bellows will be hindered, affecting normal use.

[0004] There is a need for a compensator that can warn of material leakage, so as to remind operators to discover and perform maintenance in time. Summary of the Invention

[0005] The utility model aims to provide a compensator with a leakage alarm, which can give a maintenance reminder in time when a bellows leaks, so as to prevent the leakage from becoming larger.

[0006] The technical solution for achieving the purpose of the utility model is as follows: the utility model has a bellows, which includes a bellows section and a fixed section. A first connecting flange and a second connecting flange are fixedly provided on the fixed sections at both ends of the bellows, respectively. A fixing seat extending circumferentially with the axis of the bellows as the center is fixed on the fixed section of the bellows, and an outer cylinder sleeved on the outer wall of the bellows is provided. Both ends of the outer cylinder are fixedly provided with baffles extending toward the bellows and forming contact with the fixed seat; the fixing seat is provided with a plurality of slots distributed circumferentially with the axis of the bellows as the center and arranged along the extension direction of the bellows, and the side walls of each slot are provided with a sliding groove arranged along the extension direction of the bellows, and a fixed device is fixed on the baffle. There are multiple extension plates extending toward the slots and capable of forming contact with the slots and arranged in one-to-one correspondence with the slots. The extension plates are distributed circumferentially with the axis of the bellows as the center. A slider that can form a sliding fit with the sliding slot is fixed on the extension plate. The outer tube is slidably arranged on the fixed seat through the sliding fit of the slider and the sliding slot. The interior of the outer tube forms a closed space after forming contact with the fixed seat through the baffle; an alarm is also provided on the lower end of the outer tube, the alarm includes a base fixedly arranged on the outer tube, a trigger end fixedly arranged on the base, and an alarm end fixedly arranged on the base, the trigger end is arranged through the outer tube and can extend toward the bellows, and the alarm end is located on the side of the outer tube facing outward.

[0007] Furthermore, a sealing ring is provided which extends along the contour direction of the baffle and the extension plate. The sealing ring is provided on both the baffle and the extension plate at the same time. The sealing ring can be used to fill the gap between the baffle and the bellows and to fill the gap between the extension plate and the slot when the baffle is in contact with the bellows and the extension plate is in contact with the slot.

[0008] Furthermore, a guide assembly is provided for guiding the corrugated pipe to slide, and the guide assembly includes a first support seat and a second support seat distributed and fixedly arranged on the first connecting flange and the second connecting flange, and a pull rod slidably arranged on the first connecting flange and the second connecting flange at both ends; the first connecting flange and the second connecting flange are provided with an opening for the pull rod to pass through and to form a sliding fit, and a first limit block that can form a limiting fit with the first connecting flange is fixedly provided on the end of the pull rod passing through the first connecting flange, and a second limit block that can form a limiting fit with the second connecting flange is fixed on the end of the pull rod passing through the second connecting flange, and the corrugated pipe forms a sliding guide through the sliding fit between the pull rod and the first connecting flange and the second connecting flange, and the limiting fit between the first limit block and the second limit block and the first connecting flange and the second connecting flange.

[0009] Furthermore, a high temperature resistant layer is provided on the inner wall of the outer cylinder and the extension plate, and the high temperature resistant layer is made of metal fiber material.

[0010] Furthermore, a corrosion-resistant layer is added to the high-temperature resistant layer, a transition space is provided between the corrosion-resistant layer and the high-temperature resistant layer, the corrosion-resistant layer and the high-temperature resistant layer are fixed by a plurality of connecting blocks, and the corrosion-resistant layer is made of tetrafluoroethylene corrosion-resistant material.

[0011] Furthermore, there are three groups of alarms that are evenly arranged along the extension direction of the bellows. The three groups of alarms are respectively a liquid alarm, a gas alarm and a temperature alarm.

[0012] The present invention has positive effects: (1) the interior of the outer tube of the present invention forms a closed space after the baffle comes into contact with the fixed seat, and an alarm is also provided on the lower end of the outer tube, the alarm comprising a base fixed on the outer tube, a trigger end fixed on the base, and an alarm end fixed on the base, the trigger end passing through the outer tube and extending toward the bellows, and the alarm end is located on the side of the outer tube facing outward; the alarm can detect and issue a warning after the material in the bellows leaks into the closed space, prompting the operator to perform maintenance or replacement, and giving timely maintenance reminders to avoid the leakage from becoming larger.

[0013] (2) The baffle and the extension plate of the present invention are provided with sealing rings extending along the contour direction of the baffle and the extension plate. The sealing rings can be used to fill the gap between the baffle and the bellows and to fill the gap between the extension plate and the slot (21) to prevent the material leaked from the bellows from spreading or volatilizing.

[0014] (3) The present invention is also provided with a guide assembly for guiding the bellows to slide. The bellows forms a sliding guide through the sliding fit between the pull rod in the guide assembly and the first connecting flange and the second connecting flange, and the limit fit between the first limit block and the second limit block and the first connecting flange and the second connecting flange. When the bellows is performing telescopic compensation, the guidance of the guide assembly can ensure that the slider and the sliding groove can slide in full fit, avoiding the generation of gaps, which causes the material leaked from the bellows to spread or volatilize from the generated gaps.

[0015] (4) The inner wall and the extension plate of the outer tube of the utility model are both provided with a high temperature resistant layer, and a corrosion resistant layer is added on the high temperature resistant layer. The high temperature resistant layer and the corrosion resistant layer can prevent the high temperature substance or corrosive substance in the bellows from leaking and causing damage to the outer tube.

[0016] (5) The utility model has three groups of alarms which are evenly arranged along the extension direction of the bellows. The three groups of alarms are respectively a liquid alarm, a gas alarm and a temperature alarm. The liquid alarm, the gas alarm and the temperature alarm can detect liquids, gases and high-temperature substances, thereby increasing the range of alarm detection types.

[0017] (6) The sliding block of the utility model forms a sliding fit with the sliding groove in the slot, which can ensure that the expansion and contraction compensation of the bellows is realized normally. At the same time, the interior of the outer tube forms a closed space after coming into contact with the fixed seat through the baffle. The closed space can wrap the bellows inside, ensuring that the material leaked from the inside of the bellows will not reach the outside, thereby preventing the leaked material from polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 It is a side view of the outer cylinder of the utility model;

[0022] Figure 4 For the utility model Figure 2 A partial enlarged view of the middle A;

[0023] Figure 5 For the utility model Figure 2 Partial enlarged view of middle B;

[0024] Figure 6 For the utility model Figure 3 Partially enlarged view of center C. DETAILED DESCRIPTION

[0025] See Figures 1 to 6The utility model has a bellows 1, which includes a bellows section and a fixed section. A first connecting flange 11 and a second connecting flange 12 are fixedly provided on the fixed sections at both ends of the bellows 1, respectively. A fixing seat 2 is fixedly provided on the fixed section of the bellows 1, which extends circumferentially with the axis of the bellows 1 as the center. An outer cylinder 3 is also provided, which is sleeved on the outer wall of the bellows 1. Both ends of the outer cylinder 3 are fixed with baffles 31 extending toward the bellows 1 and forming contact with the fixing seat 2; the fixing seat 2 is provided with a plurality of slots 21 distributed circumferentially with the axis of the bellows 1 as the center and arranged along the extension direction of the bellows 1, and a sliding groove 22 is provided on the side wall of each slot 21 along the extension direction of the bellows 1, and a plurality of sliding grooves 22 are fixed on the baffle 31, which extend toward the slot 21 and can form contact with the slot 21 and form contact with the baffle 31. The slots 21 are provided with extension plates 32 in one-to-one correspondence, and each extension plate 32 is distributed circumferentially with the axis of the bellows 1 as the center. A slider 4 that can form a sliding fit with the sliding groove 22 is fixed on the extension plate 32, and the outer cylinder 3 is slidably set on the fixed seat 2 through the sliding fit of the slider 4 and the sliding groove 22. The interior of the outer cylinder 3 is in contact with the fixed seat 2 through the baffle 31 and the slider 4 forms a sliding fit with the sliding groove 22 to form a closed space; the lower end of the outer cylinder 3 is also provided with an alarm 5, the alarm 5 includes a base 51 fixedly set on the outer cylinder 3, a trigger end 52 fixedly set on the base 51 and an alarm end 53 fixedly set on the base 51, the trigger end 52 is set through the outer cylinder 3 and can extend toward the bellows 1, and the alarm end 53 is located on the side of the outer cylinder 3 facing outward.

[0026] The alarm can detect and issue a warning when the material in the bellows 1 leaks into the confined space, prompting the operator to repair or replace it, and give a maintenance reminder in time to prevent the leakage from getting bigger.

[0027] A sealing ring 6 is also provided which extends along the contour direction of the baffle 31 and the extension plate 32. The sealing ring 6 is provided on both the baffle 31 and the extension plate 32 at the same time. The sealing ring 6 is fixed on the baffle 31 and the extension plate 31. The sealing ring 6 can be used to fill the gap between the baffle 31 and the bellows 1 and to fill the gap between the extension plate 32 and the slot 21 when the baffle 31 is in contact with the bellows 1 and the extension plate 32 is in contact with the slot 21.

[0028] The sealing ring 6 can be used to fill the gap between the baffle 31 and the bellows 1 and to fill the gap between the extension plate 32 and the slot 21 to prevent the material leaking from the bellows 1 from spreading or volatilizing.

[0029] A guide assembly 7 is also provided for guiding the corrugated pipe 1 to slide, and the guide assembly 7 includes a first support seat 71 and a second support seat 72 distributed and fixedly arranged on the first connecting flange 11 and the second connecting flange 12, and a pull rod 73 slidably arranged on the first connecting flange 11 and the second connecting flange 12 at both ends; the first connecting flange 11 and the second connecting flange 12 are provided with an opening for the pull rod 73 to pass through and to form a sliding fit, and a first limit block 8 that can form a limiting fit with the first connecting flange 11 is fixedly provided on one end of the pull rod 73 passing through the first connecting flange 11, and a second limit block 9 that can form a limiting fit with the second connecting flange 12 is fixed on one end of the pull rod 73 passing through the second connecting flange 12. The corrugated pipe 1 forms a sliding guide through the sliding fit between the pull rod 73 and the first connecting flange 11 and the second connecting flange 12, and the limiting fit between the first limit block 8 and the second limit block 9 and the first connecting flange 11 and the second connecting flange 12.

[0030] There are multiple first support seats 71 and second support seats 72, and the first support seats 71 and second support seats 72 are distributed circumferentially on the first connecting flange 11 and the second connecting flange 12 with the axis of the corrugated pipe 1 as the center. Each first support seat 71 and each second support seat 72 are arranged in a one-to-one correspondence, and there are also multiple pull rods 73, which form a sliding fit with each first support seat 71 and each second support seat 72 in a one-to-one correspondence.

[0031] The inner wall of the outer cylinder 3 and the extension plate 32 are both provided with a high temperature resistant layer a, which is made of metal fiber material.

[0032] A corrosion-resistant layer b is added to the high-temperature resistant layer a, a transition space is provided between the corrosion-resistant layer b and the high-temperature resistant layer a, the corrosion-resistant layer b and the high-temperature resistant layer a are fixed by a plurality of connecting blocks, and the corrosion-resistant layer b is made of tetrafluoroethylene corrosion-resistant material.

[0033] A high temperature resistant layer a and a corrosion resistant layer b may also be provided on the outer wall of the bellows 1. The high temperature resistant layer a and the corrosion resistant layer b can prevent the high temperature substances or corrosive substances in the bellows 1 from leaking and causing damage to the outer tube 3 and the bellows 1.

[0034] There are three groups of alarms 5 and they are evenly arranged along the extension direction of the bellows 1 . The three groups of alarms 5 are respectively a liquid alarm, a gas alarm and a temperature alarm.

[0035] The working principle of the present invention is as follows: the outer tube 3 is sleeved on the outside of the bellows 1, and the extension plates 32 on both ends of the outer tube 3 extend into the slots 21 on the corresponding sides. The slider 4 on the extension plate 32 forms a sliding fit with the sliding groove 22 in the slot 21. The sliding fit between the slider 4 and the sliding groove 22 in the slot 21 can ensure that the telescopic compensation of the bellows 1 is normally realized. At the same time, the interior of the outer tube 3 is in contact with the fixing seat 2 through the baffle 31 and the slider 4 forms a sliding fit with the sliding groove 22. A closed space is formed. The closed space can wrap the bellows 1 inside to ensure that the substance leaked from the inside of the bellows 1 will not reach the outside. The liquid alarm, gas alarm and temperature alarm located on the outer tube 3 can detect the substance leaked from the inside of the bellows 1. When the substance reaches a certain concentration, it will trigger the trigger end 52 of the alarm 5, thereby giving a prompt from the alarm end 53 of the alarm 5.

[0036] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A compensator with a leakage alarm, comprising a bellows (1), the bellows (1) comprising a bellows section and a fixed section, a first connecting flange (11) and a second connecting flange (12) being fixedly provided on the fixed sections at both ends of the bellows (1), characterized in that: The fixed section of the bellows (1) is fixed with a fixed seat (2) extending circumferentially with the axis of the bellows (1) as the center, and is also provided with an outer cylinder (3) sleeved on the outer wall of the bellows (1), and both ends of the outer cylinder (3) are fixed with baffles (31) extending toward the bellows (1) and forming contact with the fixed seat (2); the fixed seat (2) is provided with a plurality of slots (21) distributed circumferentially with the axis of the bellows (1) as the center and arranged along the extension direction of the bellows (1), and the side wall of each slot (21) is provided with a sliding slot (22) arranged along the extension direction of the bellows (1), and the baffle (31) is fixed with an extension plate (32) corresponding to each slot (21) and extending toward the slot (21) and capable of forming contact with the slot (21). ), a slider (4) that can form a sliding fit with the sliding groove (22) is fixedly provided on the extension plate (32), and the outer cylinder (3) is slidably arranged on the fixed seat (2) through the sliding fit of the slider (4) and the sliding groove (22), and the interior of the outer cylinder (3) forms a closed space after coming into contact with the fixed seat (2) through the baffle (31); an alarm (5) is also provided at the lower end of the outer cylinder (3), and the alarm (5) includes a base (51) fixedly arranged on the outer cylinder (3), a trigger end (52) fixedly arranged on the base (51), and an alarm end (53) fixedly arranged on the base (51), the trigger end (52) passes through the outer cylinder (3) and can extend toward the bellows (1), and the alarm end (53) is located on the side of the outer cylinder (3) facing outward.

2. The compensator with a leakage alarm according to claim 1, characterized in that: A sealing ring (6) is also provided, which is extended along the contour direction of the baffle (31) and the extension plate (32). The sealing ring (6) is provided on both the baffle (31) and the extension plate (32). The sealing ring (6) can be used to fill the gap between the baffle (31) and the bellows (1) and to fill the gap between the extension plate (32) and the slot (21) when the baffle (31) is in contact with the bellows (1) and the extension plate (32) is in contact with the slot (21).

3. The compensator with a leakage alarm according to claim 1, characterized in that: A guide assembly (7) for guiding the corrugated pipe (1) to slide is also provided, and the guide assembly (7) includes a first support seat (71) and a second support seat (72) distributed and fixedly provided on the first connecting flange (11) and the second connecting flange (12), and a pull rod (73) with two ends respectively slidably provided on the first connecting flange (11) and the second connecting flange (12); the first connecting flange (11) and the second connecting flange (12) are provided with an opening for the pull rod (73) to pass through and to form a sliding fit, and the pull rod (73) passes through the first connecting flange (11) A first limiting block (8) is fixedly provided on one end thereof and can form a limiting fit with the first connecting flange (11); a second limiting block (9) is fixedly provided on one end of the pull rod (73) passing through the second connecting flange (12) and can form a limiting fit with the second connecting flange (12); the bellows (1) forms a sliding guide through the sliding fit between the pull rod (73) and the first connecting flange (11) and the second connecting flange (12) and the limiting fit between the first limiting block (8) and the second limiting block (9) and the first connecting flange (11) and the second connecting flange (12).

4. The compensator with a leakage alarm according to claim 1, characterized in that: A high-temperature resistant layer (a) is provided on the inner wall of the outer cylinder (3) and the extension plate (32), and the high-temperature resistant layer (a) is made of metal fiber material.

5. The compensator with a leakage alarm according to claim 4, characterized in that: A corrosion-resistant layer (b) is added to the high-temperature resistant layer (a), a transition space is provided between the corrosion-resistant layer (b) and the high-temperature resistant layer (a), the corrosion-resistant layer (b) and the high-temperature resistant layer (a) are fixed by a plurality of connecting blocks, and the corrosion-resistant layer (b) is made of a corrosion-resistant tetrafluoroethylene material.

6. The compensator with a leakage alarm according to claim 1, characterized in that: The alarms (5) are provided in three groups and are evenly arranged along the extension direction of the bellows (1). The three groups of alarms (5) are respectively a liquid alarm, a gas alarm, and a temperature alarm.

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