CN117366372A - Multilayer protection heat preservation compensator unit with leakage detection early warning function - Google Patents
Multilayer protection heat preservation compensator unit with leakage detection early warning function Download PDFInfo
- Publication number
- CN117366372A CN117366372A CN202311314578.XA CN202311314578A CN117366372A CN 117366372 A CN117366372 A CN 117366372A CN 202311314578 A CN202311314578 A CN 202311314578A CN 117366372 A CN117366372 A CN 117366372A
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- CN
- China
- Prior art keywords
- sealing
- unit
- pipe
- heat
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 238000004321 preservation Methods 0.000 title claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 229920001971 elastomer Polymers 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000010008 shearing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/21—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for expansion-compensation devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a multilayer protection heat-preservation compensator unit with leakage detection and early warning, which belongs to the field of compensators. The invention is provided with a four-layer sealing composite structure, wherein the compensation unit forms a first layer of sealing, the water-swelling rubber in the first sealing unit is a second layer of sealing, the special-shaped structure rubber is a third layer of sealing, and the composite sealing structure formed by the two layers and the three layers can move on the working tube under normal conditions; the seal in the second sealing unit is a fourth layer seal. Through the structure, the problems of pipeline corrosion, heat preservation leakage, secondary damage caused by medium leakage and the like at the compensating unit are avoided, the service life of the compensating unit is prolonged, and the worry of using the corrugated pipe compensator by a user is relieved.
Description
Technical Field
The invention relates to the field of compensators, in particular to a multilayer protection heat-preservation compensator unit with leakage detection and early warning functions.
Background
The heat preservation structure of the prefabricated direct-buried heat preservation compensator is as follows: the movable end and the fixed end are both in a polyurethane heat preservation mode, the movable end and the fixed end are in relative motion, the waterproof seal of the heat preservation outer protection is generally made of a rubber corrugated pipe, and the two ends of the waterproof seal are bonded by a shrinkage belt or rigidly fixed on the outer protection pipe of the heat preservation layer by a pulling rivet. The direct-buried compensator is laid underground along with the pipeline, the external working environment of the direct-buried compensator is often in a water accumulation state due to raining and other reasons, once leakage and infiltration of water accumulation outside the heat-insulating layer occur, the heat-insulating layer is quickly damaged, the working pipe is corroded, and the pipeline is finally leaked after the working pipe is in failure.
Disclosure of Invention
The invention aims to provide a corrugated pipe sleeve composite multilayer sealing direct-buried compensator.
The technical scheme of the invention is as follows: the multilayer protection heat-preservation compensator unit with the leakage detection early warning comprises a core tube, heat-preservation units and compensation units, wherein the heat-preservation units and the compensation units are arranged on the outer ring of the core tube, each heat-preservation unit comprises a shearing ring welded at two ends of the core tube, heat-preservation pipes arranged on the outer ring of each shearing ring, a wave compensation outer sleeve plate arranged on the outer ring of the compensation unit, and outer sleeve steel arranged on the outer ring of the wave compensation outer sleeve plate; the sleeve outside that is close to the sealed tube is provided with first sealing unit, detection subassembly, and first sealing unit, detection subassembly set up between compensation unit and core pipe, are provided with the second sealing unit between annular slab and the pull rod subassembly.
According to a further technical scheme, the first sealing unit comprises a connecting flange sleeved on the core pipe, a base fixed on the connecting flange through a fastener, the base is arranged between the sleeve and the connecting flange, a connecting pipe is arranged between the connecting flange and the sleeve, a sealing cavity is formed among the connecting pipe, the sleeve, the connecting flange and the core pipe, and a water-swelling type water stop rubber ring and a sealing rubber ring are arranged in the sealing cavity; the detection cavity is formed on one side of the sealing cavity between the connecting pipe, the sleeve and the core pipe, the detecting pipe communicated with the detection cavity is arranged on the connecting pipe, the detecting component is arranged on the detecting pipe, and the detecting component comprises a temperature detector, a pressure detector, an alarm and a valve which are sequentially arranged on the detecting pipe.
According to a further technical scheme, a sealing piece is arranged in the second sealing unit.
According to a further technical scheme, the compensation unit comprises a plurality of corrugated pipes connected through corrugated pipe connecting plates, one end of the compensation unit is fixed on the core pipe, and the other end of the compensation unit is connected to the adjacent sleeve.
According to a further technical scheme, a first heat-preserving cavity is formed between the outer sleeve steel and the corrugated outer sleeve plate as well as between the outer sleeve plate and the sealing pipe, a second heat-preserving cavity is formed between the heat-preserving pipe and the core pipe, and heat-preserving fillers are filled in the first heat-preserving cavity and the second heat-preserving cavity.
The invention has the beneficial effects that:
the invention is provided with four layers of sealing composite structures, an external pressure compensator with operation detection and leakage alarm functions is provided, and an external heat insulation layer prefabricated in a factory is provided. The compensation unit forms a first layer of seal, the water-swelling rubber in the first seal unit is a second layer of seal, the special-shaped structure rubber is a third layer of seal, and the composite seal structure formed by the two layers and the three layers can move on the working tube under normal conditions; the sealing element in the second sealing unit is a fourth layer of sealing, so that external dust is prevented from entering the inner cavity, and the product is protected. Through the structure, the problems of pipeline corrosion, heat preservation leakage, secondary damage caused by medium leakage and the like at the compensating unit are avoided, the service life of the compensating unit is prolonged, and the worry of using the corrugated pipe compensator by a user is relieved.
Drawings
Figure 1 is a schematic diagram of the structure of the present invention,
figure 2 is an enlarged schematic view of figure 1 at a,
wherein, 1, a core tube, 2, a shearing ring, 3, a heat preservation tube, 4, a wave compensation outer sleeve plate, 5, outer sleeve steel, 6, a sleeve, 7, a sealing tube, 8, a ring plate, 9, a pull rod component, 10, a first sealing unit, 11, a connecting flange, 12, a fastener, 13, a base, 14, a connecting tube, 15, a sealing cavity, 16 and a water-swelling type water-stopping rubber ring, 17, sealing rubber rings, 18, detection cavities, 19, detection pipes, 20, temperature detectors, 21, pressure detectors, 22, alarms, 23, valves, 24, second sealing units, 25, sealing elements, 26, corrugated pipes, 27, corrugated pipe connecting plates, 28, first heat preservation cavities, 29 and second heat preservation cavities.
Detailed Description
The invention will be further illustrated by the following non-limiting examples, which illustrate the invention.
As shown in fig. 1-2, the invention provides a multilayer protection heat insulation compensator unit with leakage detection early warning, which comprises a core tube 1, a heat insulation unit and a compensation unit, wherein the heat insulation unit and the compensation unit are arranged on the outer ring of the core tube 1, the heat insulation unit comprises shear rings 2 welded at two ends of the core tube 1, heat insulation pipes 3 arranged on the outer ring of each shear ring 2, a corrugated outer sleeve plate 4 arranged on the outer ring of the compensation unit, and outer sleeve steel 5 arranged on the outer ring of the corrugated outer sleeve plate 4, the compensation unit is arranged between the two heat insulation pipes 3, sleeves 6 are arranged between the inner walls of two ends of the corrugated outer sleeve plate 4 and the core tube 1, the right end part of the corrugated outer sleeve plate 4 is connected with the adjacent heat insulation pipes 3 through a sealing pipe 7, the sleeves 6 are fixed on the corrugated outer sleeve plate 4, the left end of the outer sleeve steel 5 is connected with the heat insulation pipes 3, the right end of the outer sleeve steel 5 is connected with the sealing pipe 7 through a ring plate 8, and the ring plate 8 close to one side of the sealing pipe 7 is connected with the core tube 1 through a pull rod assembly 9; a first sealing unit 10 and a detection component are arranged outside the sleeve 6 close to the sealing tube 7, the first sealing unit 10 and the detection component are arranged between the compensation unit and the core tube 1, and a second sealing unit 24 is arranged between the annular plate 8 and the pull rod component 9.
The first sealing unit 10 comprises a connecting flange 11 sleeved on the core tube 1, a base 13 fixed on the connecting flange 11 through a fastener 12, the base 13 is arranged between the sleeve 6 and the connecting flange 11, a connecting pipe 14 is arranged between the connecting flange 11 and the sleeve 6, a sealing cavity 15 is formed among the connecting pipe 14, the sleeve 6, the connecting flange 11 and the core tube 1, and a water-swelling type water stop rubber ring 16 and a sealing rubber ring 17 are arranged in the sealing cavity 15; the water-sealing expansion rubber, the self-sealing rubber ring, the base 13 and the like form combined sealing, and the sealing structure can move on the working tube under normal conditions;
a detection cavity 18 is formed between the connecting pipe 14, the sleeve 6 and the core pipe 1 at one side of the sealing cavity 15, a detection pipe 19 communicated with the detection cavity 18 is arranged on the connecting pipe 14, a detection component is arranged on the detection pipe 19, and the detection component comprises a temperature detector 20, a pressure detector 21, an alarm 22 and a valve 23 which are sequentially arranged on the detection pipe 19. The pressure detector 21 sets working pressure, the temperature detector 20 sets working temperature detection, and the working pressure is used as leakage detection and early warning after the first layer of sealing failure of the product, and detection and early warning information is sent out.
A sealing member 25 is provided in the second sealing unit 24, where a dust-proof structure is provided, preventing external dust from entering the inner cavity, protecting the product.
The compensating unit comprises a number of bellows 26 connected by bellows connection plates 27, one end of the compensating unit being fixed to the core tube 1 and the other end being connected to the adjacent sleeve 6. And a single or a plurality of corrugated pipe 26 pipe sections are adopted according to different compensation amounts, so that the requirements of different compensation amounts are met, and the economical efficiency and the applicability of the product are improved.
A first heat preservation cavity 28 is formed between the outer sleeve steel 5 and the corrugated outer sleeve plate 4 as well as between the outer sleeve steel 7 and the sealing pipe, a second heat preservation cavity 29 is formed between the heat preservation pipe 3 and the core pipe 1, and heat preservation fillers are filled in the first heat preservation cavity 28 and the second heat preservation cavity 29. The prefabricated outer thermal insulation layer of mill can promote the heat preservation quality. Effectively reduces the surface temperature and realizes the effects of energy conservation and emission reduction.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The multilayer protection heat-preservation compensator unit with the leakage detection early warning comprises a core tube, heat-preservation units and compensation units, wherein the heat-preservation units and the compensation units are arranged on the outer ring of the core tube, each heat-preservation unit comprises a shearing ring welded at two ends of the core tube, heat-preservation pipes arranged on the outer ring of each shearing ring, a wave compensation outer sleeve plate arranged on the outer ring of the compensation unit, and outer sleeve steel arranged on the outer ring of the wave compensation outer sleeve plate; the method is characterized in that: the sleeve outside that is close to the sealed tube is provided with first sealing unit, detection subassembly, and first sealing unit, detection subassembly set up between compensation unit and core pipe, be provided with the second sealing unit between annular plate and the pull rod subassembly.
2. The multi-layer protection thermal insulation compensator unit with leak detection pre-warning according to claim 1, wherein: the first sealing unit comprises a connecting flange sleeved on the core pipe, a base fixed on the connecting flange through a fastener, the base is arranged between the sleeve and the connecting flange, a connecting pipe is arranged between the connecting flange and the sleeve, a sealing cavity is formed among the connecting pipe, the sleeve, the connecting flange and the core pipe, and a water-swelling type water stop rubber ring and a sealing rubber ring are arranged in the sealing cavity; the detection cavity is formed on one side of the sealing cavity between the connecting pipe, the sleeve and the core pipe, the detecting pipe communicated with the detection cavity is arranged on the connecting pipe, the detecting component is arranged on the detecting pipe, and the detecting component comprises a temperature detector, a pressure detector, an alarm and a valve which are sequentially arranged on the detecting pipe.
3. The multi-layer protection thermal insulation compensator unit with leak detection pre-warning according to claim 1, wherein: and a sealing piece is arranged in the second sealing unit.
4. The multi-layer protection thermal insulation compensator unit with leak detection pre-warning according to claim 1, wherein: the compensation unit comprises a plurality of corrugated pipes connected through corrugated pipe connecting plates, one end of the compensation unit is fixed on the core pipe, and the other end of the compensation unit is connected to the adjacent sleeve.
5. The multi-layer protection thermal insulation compensator unit with leak detection pre-warning according to claim 1, wherein: a first heat-preserving cavity is formed between the outer sleeve steel and the corrugated outer sleeve plate as well as between the outer sleeve steel and the sealing pipe, a second heat-preserving cavity is formed between the heat-preserving pipe and the core pipe, and heat-preserving fillers are filled in the first heat-preserving cavity and the second heat-preserving cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311314578.XA CN117366372A (en) | 2023-10-11 | 2023-10-11 | Multilayer protection heat preservation compensator unit with leakage detection early warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311314578.XA CN117366372A (en) | 2023-10-11 | 2023-10-11 | Multilayer protection heat preservation compensator unit with leakage detection early warning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117366372A true CN117366372A (en) | 2024-01-09 |
Family
ID=89405249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311314578.XA Pending CN117366372A (en) | 2023-10-11 | 2023-10-11 | Multilayer protection heat preservation compensator unit with leakage detection early warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117366372A (en) |
-
2023
- 2023-10-11 CN CN202311314578.XA patent/CN117366372A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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