High-temperature pipeline heat preservation structure

Abstract

The utility model discloses a high-temperature pipeline heat preservation structure in the technical field of pipeline heat preservation, which comprises two heat preservation pipes, connecting pieces are arranged on the opposite sides of the two heat preservation pipes, and clamping pieces are fixedly sleeved on the left side and the right side of each connecting piece. The side faces of the two heat preservation pipes are movably sleeved with air leakage detectors, annular grooves are formed in the side faces of the two heat preservation pipes, and every two T-shaped strips in one set drive arc-shaped strips on the side faces of the T-shaped strips to stretch front and back to extrude second compression springs, so that the side faces of the heat preservation pipes are sleeved with sealing cylinders, the T-shaped strips are loosened, and the heat preservation pipes are sealed. The T-shaped strip drives the arc-shaped strip to move into the annular groove through the second compressed spring, the sealing cylinder is fixed to the two heat preservation pipes, when high-temperature gas in the pipeline is conveyed, the gas leakage condition of the heat preservation pipes can be rapidly judged by observing the state of the gas pressure detection strip, and then the heat preservation pipes with gas leakage can be rapidly fixed and sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline insulation, in particular to a high-temperature pipeline insulation structure. Background Art

[0002] Pipelines are widely used in all walks of life, especially in the material transmission of chemical enterprises, as well as the transportation of materials used underground and in the ocean. The convenience and efficiency brought by pipelines should not be underestimated. Pipelines are as important as bridges between different enterprises and regions. Therefore, the actual demand for pipelines is getting higher and higher. The industrial pipelines used, the medium temperature of which exceeds 450°C, are generally considered high-temperature pipelines. High-temperature pipelines refer to metal high-temperature resistant thermal engineering pipeline materials that transport high temperature and high pressure. With the advancement of science and technology and the rapid development of industry, the demand for high-temperature pipes is increasing.

[0003] The existing patent (Announcement No.: CN111765327A) discloses a high-temperature pipe insulation structure, which includes a first pipe, a second pipe and a connector. The cross-sections of the first pipe and the second pipe are both circular. When installed in a cold state, the hard pipe is installed closely, and the expansion joint insulation is connected to the hard shell with a flange outside the hard insulation, which is convenient for disassembly. If the colder pipes tend to be close to each other in the running state, a second insulation layer of low-density insulation material with good elasticity is filled between the hard pipes. However, this technical solution still has shortcomings, as follows:

[0004] The above device uses flanges and different materials to insulate the high-temperature pipes. When two high-temperature pipes need to be installed and combined, they need to be connected by connecting parts and other structures, which makes it easy for the connection between the pipes to leak. To this end, we propose a high-temperature pipe insulation structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide a high-temperature pipe insulation structure, which can solve the existing problem of thermal insulation connection of high-temperature pipes through flanges and the use of different materials. When two high-temperature pipes need to be installed and combined, it is necessary to use connecting parts and other structures to connect the pipes, which leads to the problem of air leakage at the connection between the pipes.

[0007] In order to solve the above technical problems, the utility model provides a high-temperature pipeline insulation structure, which adopts the following technical solution: comprising an insulation pipe, the number of the insulation pipes is two, the two insulation pipes are provided with connecting pieces on opposite sides, the left and right sides of the connecting pieces are fixedly sleeved with clamps, and the sides of the two insulation pipes are movably sleeved with gas leakage detectors;

[0008] The sides of the two insulation pipes are provided with annular grooves, the front and rear sides of the gas leakage detector are movably connected with fixing parts, the sides of the fixing parts are in contact with the inside of the annular grooves, and the inside of the insulation pipes is provided with L-shaped grooves.

[0009] By adopting the above technical solution, this solution makes it easy to observe the state of the air pressure detection strip to quickly determine the leakage of the insulation pipe, and can quickly re-fix and seal the insulation pipe with leakage, and can quickly connect the two insulation pipes to the connecting tube.

[0010] Optionally, the connecting part includes a connecting tube, and the left and right sides of the connecting tube are respectively movably inserted into the interior of the opposite sides of the two insulation pipes, and the side of the connecting tube is fixedly sleeved with a sealing ring, and the left and right sides of the sealing ring are respectively in contact with the opposite sides of the two insulation pipes, and the left and right sides of the sealing ring are fixedly connected with O-rings.

[0011] By adopting the above technical solution, the present solution can connect and seal two insulation pipes through a connecting piece.

[0012] Optionally, the clamping member includes eight round blocks, four of the eight round blocks are grouped together and fixedly connected in a ring shape at equal distances to the sides of two connecting cylinders, a T-shaped groove is provided inside the round block, a T-shaped block is slidably connected inside the T-shaped groove, a first compression spring is fixedly connected to the bottom of the cross block of the T-shaped block, and one end of the first compression spring is fixedly connected to the inside of the T-shaped groove.

[0013] By adopting the above technical solution, the present solution can connect the connecting piece to the thermal insulation pipe through the clamping piece.

[0014] Optionally, the side of the round block is slidably connected to the inside of the L-shaped groove, the number of the L-shaped grooves is eight, and the eight L-shaped grooves are equidistantly arranged in an arc shape inside the two connecting tubes. A limiting groove is arranged on the side of the transverse groove of the L-shaped groove, and a slot is arranged on the side of the limiting groove. The inside of the slot contacts the side of the vertical block of the T-shaped block.

[0015] By adopting the above technical solution, the round block can drive the T-shaped block to move from the L-shaped groove to the inside of the limiting groove, and move the vertical block of the T-shaped block to the inside of the slot, so that the two insulation pipes can be quickly connected and fixed.

[0016] Optionally, the air leakage detector comprises a sealing tube, which is movably sleeved on the middle part of the sides of the two insulation tubes, and an air pressure detection gauge is fixedly plugged into the upper side of the sealing tube.

[0017] By adopting the above technical solution, the present solution can detect whether there is air leakage after two insulation pipes are connected through an air pressure detection gauge.

[0018] Optionally, the fixing member includes four T-shaped bars, and the four T-shaped bars are grouped into two and are movably inserted into the front and rear sides of the left and right sides of the two sealing cylinders respectively, one side of the horizontal bar of the T-shaped bar is fixedly connected with an arc-shaped bar, and the side surface of the arc-shaped bar is slidably connected to the inside of the annular groove, and the side surface of the horizontal bar of the T-shaped bar is fixedly sleeved with a second compression spring, one end of the second compression spring is fixedly connected to the side surface of the arc-shaped bar, and the other end of the second compression spring is fixedly connected to the inside of the sealing cylinder.

[0019] By adopting the above technical solution, the sealing cylinder can be moved to the sides of the two insulation pipes by moving the T-shaped bar to the front and rear sides, and then the T-shaped bar drives the arc bar to move to the inside of the annular groove, so that the sealing cylinder can be fixed on the side of the insulation pipe.

[0020] Optionally, both left and right sides of the insulation pipe are movably sleeved with polyurethane insulation sleeves, and the outer diameter of the polyurethane insulation sleeve is equal to the outer diameter of the sealing tube.

[0021] By adopting the above technical solution, the polyurethane insulation sleeve has high specific strength, low thermal conductivity, high density, anti-aging, acid and alkali resistance, and has good insulation effect.

[0022] Optionally, the side surfaces of the circular block and the side surfaces of the vertical block of the T-shaped block are both rounded.

[0023] By adopting the above technical solution, the T-shaped block with rounded corners has less resistance when it moves out of the slot.

[0024] In summary, the present invention has at least one of the following beneficial effects:

[0025] The arc-shaped bars on the sides are stretched to the front and rear sides by two T-shaped bars in a group, and the second compression spring is squeezed to make the sealing cylinder sleeve on the side of the insulation pipe, and the T-shaped bar is loosened to make the T-shaped bar drive the arc-shaped bar to move into the annular groove through the second compression spring, and the sealing cylinder is fixed on the two insulation pipes. When the high-temperature gas inside the pipeline is transported, the state of the air pressure detection bar can be observed to quickly determine the leakage of the insulation pipe, and the insulation pipe with leakage can be quickly re-fixed and sealed.

[0026] By putting the insulation pipe on the connecting tube, the opposite sides of the two insulation pipes are in contact with the side of the sealing ring. At this time, the round block and the T-shaped block are in the L-shaped groove, and the T-shaped block moves into the T-shaped groove by contacting the inside of the L-shaped groove, compressing the first compression spring, and by rotating the insulation pipe, the insulation pipe drives the L-shaped groove, the limit groove and the slot to rotate, so that the round block drives the T-shaped block to move from the inside of the L-shaped groove to the limit groove, and at the same time, the T-shaped block moves into the slot through the first compression spring, so that the two insulation pipes can be quickly connected to the connecting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0029] Figure 2 It is a partial three-dimensional structure expansion diagram of the utility model;

[0030] Figure 3 It is a partial three-dimensional structural cross-sectional view of the sealing cylinder of the utility model;

[0031] Figure 4 It is a partial three-dimensional structural schematic diagram of the thermal insulation pipe of the utility model;

[0032] Figure 5 It is a partial three-dimensional structural cross-sectional view of the connector of the utility model;

[0033] Figure 6 For the utility model Figure 5 A magnified view of the structure in the middle.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. Insulation pipe; 101. Polyurethane insulation sleeve; 2. L-shaped groove; 201. Limit groove; 202. Slot; 3. Connector; 301. Connecting tube; 302. Sealing ring; 303. O-ring; 4. Clamp; 401. Round block; 402. T-shaped groove; 403. T-shaped block; 404. First compression spring; 5. Leakage detector; 501. Sealing tube; 502. Air pressure detection gauge; 6. Annular groove; 7. Fixing part; 701. T-shaped strip; 702. Arc strip; 703. Second compression spring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6 The utility model is described in further detail.

[0036] Embodiment 1, refer to Figure 1-6 In this embodiment, in order to solve the existing problem of thermal insulation connection of high-temperature pipelines through flanges and different materials, when two high-temperature pipelines need to be installed and combined, it is necessary to use a connecting piece and other structures to connect the pipelines, which leads to the problem that the connection between the pipelines is prone to leakage. The utility model discloses a high-temperature pipeline thermal insulation structure.

[0037] The invention comprises two heat-insulating pipes 1 , and the sides of the two heat-insulating pipes 1 are both provided with annular grooves 6 , and the front and rear sides of the gas leakage detector 5 are both movably plugged with fixing parts 7 .

[0038] The air leakage detector 5 comprises a sealing tube 501, which is movably sleeved on the middle of the sides of the two insulation tubes 1. An air pressure detection gauge 502 is fixedly plugged into the upper side of the sealing tube 501. The air pressure detection gauge 502 can detect whether there is air leakage after the two insulation tubes 1 are connected.

[0039] The fixing member 7 includes four T-shaped bars 701, and the four T-shaped bars 701 are grouped in two and are movably inserted into the front and rear sides of the left and right sides of the two sealing cylinders 501 respectively. One side of the horizontal bar of the T-shaped bar 701 is fixedly connected with an arc-shaped bar 702, and the side of the arc-shaped bar 702 is slidably connected to the inside of the annular groove 6. The side of the horizontal bar of the T-shaped bar 701 is fixedly sleeved with a second compression spring 703, one end of the second compression spring 703 is fixedly connected to the side of the arc-shaped bar 702, and the other end of the second compression spring 703 is fixedly connected to the inside of the sealing cylinder 501. By moving the T-shaped bar 701 to the front and rear sides, the sealing cylinder 501 can be moved to the sides of the two insulation pipes 1, and then the T-shaped bar 71 drives the arc-shaped bar 702 to move to the inside of the annular groove 6, so that the sealing cylinder 501 can be fixed to the side of the insulation pipe 1.

[0040] The specific working principle is: first, after the two insulation pipes 1 are fixed, two T-shaped bars 701 in a group drive the arc-shaped bars 702 on their sides to be stretched to the front and rear sides respectively, the second compression spring 703 is squeezed, and the sealing tube 501 is sleeved on the side of the insulation pipe 1, and the T-shaped bar 701 is loosened, so that the T-shaped bar 701 drives the arc-shaped bar 702 to move to the inside of the annular groove 6 through the rebound force of the second compression spring 703, and then the sealing tube 501 is fixed to the sides of the two insulation pipes 1. By observing the state of the air pressure detection bar 502 during the transmission of the high-temperature gas inside the pipeline, the leakage of the insulation pipe 1 can be quickly judged, and the insulation pipe 1 with leakage can be quickly re-fixed and sealed.

[0041] Example 2, refer to Figure 1-6 In order to solve the problem of inconvenient connection between existing high-temperature pipes in this embodiment, based on the same concept as the above-mentioned embodiment 1, the high-temperature pipe insulation structure also includes:

[0042] Insulation pipe 1, the number of insulation pipes 1 is two, and connecting parts 3 are opened on the opposite sides of the two insulation pipes 1. The connecting part 3 includes a connecting tube 301, and the left and right sides of the connecting tube 301 are respectively movably inserted into the inside of the opposite sides of the two insulation pipes 1. The side of the connecting tube 301 is fixedly sleeved with a sealing ring 302, and the left and right sides of the sealing ring 302 are respectively in contact with the opposite sides of the two insulation pipes 1. The left and right sides of the sealing ring 302 are fixedly connected with O-rings 303, and the two insulation pipes 1 can be connected and sealed through the connecting part 3.

[0043] The clamp 4 includes eight round blocks 401, and the eight round blocks 401 are fixedly connected to the sides of the two connecting tubes 301 in a ring-shaped manner with four of each group at equal distances. A T-shaped slot 402 is provided inside the round block 401, and a T-shaped block 403 is slidably connected inside the T-shaped slot 402. The bottom of the cross block of the T-shaped block 403 is fixedly connected to a first compression spring 404, and one end of the first compression spring 404 is fixedly connected to the inside of the T-shaped slot 402. The connector 3 can be connected to the insulation pipe 1 through the clamp 4.

[0044] The side of the round block 401 is slidably connected to the inside of the L-shaped groove 2. There are eight L-shaped grooves 2, which are equidistant and arc-shaped inside the two connecting tubes 301. A limiting groove 201 is provided on the side of the transverse groove of the L-shaped groove 2. A slot 202 is provided on the side of the inner part of the limiting groove 201. The inside of the slot 202 contacts the side of the vertical block of the T-shaped block 403. The round block 401 can drive the T-shaped block 403 to move from the L-shaped groove 2 to the inside of the limiting groove 201, and move the vertical block of the T-shaped block 403 to the inside of the slot 202, so that the two insulation pipes 1 can be quickly connected and fixed.

[0045] The specific working principle is: by respectively putting the two insulation tubes 1 on the left and right sides of the connecting tube 301, and making the opposite sides of the two insulation tubes 1 contact with the side of the sealing ring 302, at this time, the round block 401 and the T-shaped block 403 are on the side inside the L-shaped groove 2, and the T-shaped block 403 contacts with the inside of the L-shaped groove 2, so that the T-shaped block 403 moves to the inside of the T-shaped groove 402, compresses the first compression spring 404, and then rotates the insulation tube 1, so that the insulation tube 1 drives the L-shaped groove 2, the limiting groove 201 and the slot 202 inside it to rotate, so that the round block 401 drives the T-shaped block 403 to move from the inside of the L-shaped groove 2 to the side of the inner wall of the limiting groove 201, and at the same time, the T-shaped block 403 moves to the inside of the slot 202 through the rebound force of the first compression spring 404, so that the two insulation tubes 1 and the connecting tube 301 can be quickly connected.

[0046] Example 3, refer to Figure 1-6In this embodiment, in order to solve the problem that the high temperature inside the existing insulation pipe is prone to leakage, thereby resulting in poor insulation effect, based on the same concept as the above-mentioned embodiment 1, the high-temperature pipeline insulation structure also includes:

[0047] Insulation pipe 1, the number of insulation pipes 1 is two, and connecting parts 3 are provided on the opposite sides of the two insulation pipes 1, and clamps 4 are fixedly sleeved on the left and right sides of the connecting parts 3. Leakage detectors 5 are movably sleeved on the sides of the two insulation pipes 1, and annular grooves 6 are provided on the sides of the two insulation pipes 1, and fixing parts 7 are movably inserted on the front and back sides of the leakage detector 5.

[0048] The fixing member 7 includes four T-shaped bars 701, and the four T-shaped bars 701 are grouped in two and are movably inserted into the front and rear sides of the left and right sides of the two sealing cylinders 501 respectively. One side of the horizontal bar of the T-shaped bar 701 is fixedly connected with an arc-shaped bar 702, and the side of the arc-shaped bar 702 is slidably connected to the inside of the annular groove 6. The side of the horizontal bar of the T-shaped bar 701 is fixedly sleeved with a second compression spring 703, one end of the second compression spring 703 is fixedly connected to the side of the arc-shaped bar 702, and the other end of the second compression spring 703 is fixedly connected to the inside of the sealing cylinder 501. By moving the T-shaped bar 701 to the front and rear sides, the sealing cylinder 501 can be moved to the sides of the two insulation pipes 1, and then the T-shaped bar 71 drives the arc-shaped bar 702 to move to the inside of the annular groove 6, so that the sealing cylinder 501 can be fixed to the side of the insulation pipe 1.

[0049] The left and right sides of the insulation pipe 1 are movably connected with a polyurethane insulation sleeve 101, the outer diameter of the polyurethane insulation sleeve 101 is equal to the outer diameter of the sealing tube 501, and the polyurethane insulation sleeve 101 has high specific strength, small thermal conductivity, high density, anti-aging, acid and alkali resistance, and has a good insulation effect.

[0050] The specific working principle is: by moving the two arc strips 702 to the inside of the annular groove 6, the sealing tube 501 is fixed at the connection between the two insulation pipes 1, and at the same time, the side of the insulation pipe 1 is insulated by the polyurethane insulation sleeve 101, and the polyurethane insulation sleeve has good anti-aging and heat preservation effects, so it can effectively insulate the high-temperature pipeline and reduce the heat outflow of the insulation pipeline.

[0051] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high-temperature pipeline insulation structure, comprising an insulation pipe (1), characterized in that: The number of the insulation pipes (1) is two, and a connecting piece (3) is provided on opposite sides of the two insulation pipes (1), and clamping pieces (4) are fixedly sleeved on both sides of the connecting piece (3), and a gas leakage detector (5) is movably sleeved on the side surfaces of the two insulation pipes (1); The sides of the two insulation pipes (1) are each provided with an annular groove (6), the front and rear sides of the gas leakage detector (5) are both movably connected with fixing members (7), the sides of the fixing members (7) are in contact with the inside of the annular groove (6), and the inside of the insulation pipe (1) is provided with an L-shaped groove (2).

2. A high-temperature pipeline insulation structure according to claim 1, characterized in that: The connecting member (3) comprises a connecting tube (301), the left and right sides of the connecting tube (301) are respectively movably inserted into the interior of opposite sides of the two insulating tubes (1), a sealing ring (302) is fixedly sleeved on the side of the connecting tube (301), the left and right sides of the sealing ring (302) are respectively in contact with opposite sides of the two insulating tubes (1), and the left and right sides of the sealing ring (302) are both fixedly connected to O-rings (303).

3. A high-temperature pipeline insulation structure according to claim 2, characterized in that: The clamping member (4) comprises eight round blocks (401), four of the eight round blocks (401) are arranged in a group and are equidistantly and annularly fixedly connected to the sides of the two connecting cylinders (301), a T-shaped slot (402) is provided inside the round block (401), a T-shaped block (403) is slidably connected inside the T-shaped slot (402), a first compression spring (404) is fixedly connected to the bottom of the transverse block of the T-shaped block (403), and one end of the first compression spring (404) is fixedly connected to the inside of the T-shaped slot (402).

4. A high-temperature pipeline insulation structure according to claim 3, characterized in that: The side surface of the round block (401) is slidably connected to the inside of the L-shaped groove (2). The number of the L-shaped grooves (2) is eight. The eight L-shaped grooves (2) are arranged in an arc shape at equal distances inside the two connecting tubes (301). The side surface of the transverse groove of the L-shaped groove (2) is provided with a limiting groove (201). The side surface inside the limiting groove (201) is provided with a slot (202). The inside of the slot (202) contacts the side surface of the vertical block of the T-shaped block (403).

5. A high-temperature pipeline insulation structure according to claim 1, characterized in that: The gas leakage detector (5) comprises a sealing tube (501), the sealing tube (501) being movably sleeved on the middle of the sides of the two insulation tubes (1), and a gas pressure detection gauge (502) being fixedly plugged into the upper side of the sealing tube (501).

6. A high-temperature pipeline insulation structure according to claim 1, characterized in that: The fixing member (7) comprises four T-shaped bars (701), and the four T-shaped bars (701) are grouped in two and are movably inserted into the front and rear sides of the left and right sides of the two sealing cylinders (501), one side of the horizontal bar of the T-shaped bar (701) is fixedly connected with an arc-shaped bar (702), and the side of the arc-shaped bar (702) is slidably connected to the inside of the annular groove (6), and the side of the horizontal bar of the T-shaped bar (701) is fixedly sleeved with a second compression spring (703), one end of the second compression spring (703) is fixedly connected to the side of the arc-shaped bar (702), and the other end of the second compression spring (703) is fixedly connected to the inside of the sealing cylinder (501).

7. A high-temperature pipeline insulation structure according to claim 6, characterized in that: The left and right sides of the insulation pipe (1) are both movably sleeved with a polyurethane insulation sleeve (101), and the outer diameter of the polyurethane insulation sleeve (101) is equal to the outer diameter of the sealing tube (501).

8. A high-temperature pipeline insulation structure according to claim 3, characterized in that: The side surfaces of the round block (401) and the side surfaces of the vertical blocks of the T-shaped blocks (403) are both rounded.

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