CN211145786U - Heat insulation covering piece - Google Patents
Heat insulation covering piece Download PDFInfo
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- CN211145786U CN211145786U CN201922199122.9U CN201922199122U CN211145786U CN 211145786 U CN211145786 U CN 211145786U CN 201922199122 U CN201922199122 U CN 201922199122U CN 211145786 U CN211145786 U CN 211145786U
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Abstract
The utility model relates to a heat insulation covering piece, which is used for covering a pipe fitting through a fastening device; the heat insulation covering piece is formed by splicing a first heat insulation sleeve and a second heat insulation sleeve in a sewing combination mode. The first heat insulation sleeve and the second heat insulation sleeve are heat insulation pieces consisting of an outer protection layer with a flexible metal plate, a middle heat insulation layer and an inner protection layer, and the heat insulation pieces are sewn at the edge of the inner protection layer and the edge of the outer protection layer through sewing threads. Through sewing up the concatenation, make this thermal-insulated covering can the sealed pipe fitting completely, be applicable to the pipe fitting of various specifications and shape, the range of application is wide, and the initial stage input cost is low, and simple to operate is swift, the security is high and environmental protection, and the heat-proof quality is strong, long service life.
Description
Technical Field
The utility model relates to a pipe fitting heat-proof device specifically is a thermal-insulated covering.
Background
The statements in this section merely provide background information related to the present disclosure and may constitute prior art. In implementing the present invention, the inventors found that there are at least the following problems in the prior art.
It is known that internal combustion engines operate with inlet and exhaust pipe surface temperatures as high as several hundred degrees celsius. In the using process, if the thermal insulation protection is not carried out on the glass, scalding accidents are easily caused; leakage of fuel or gas, resulting in fire; the auxiliary electrical equipment of the internal combustion engine is exposed in a high-temperature environment for a long time, and the electrical equipment is easy to distort and lose efficacy, so that the service life of the electrical equipment is shortened, and safety accidents are possibly caused.
In order to solve the problems, in the prior art, spraying, nailing by a nail gun or welding by using metal as an appearance material are adopted to carry out heat insulation protection on the inlet and exhaust pipes of the internal combustion engine, and due to the complex spraying technology process and the vibration of the internal combustion engine during operation and the expansion and contraction of the inlet and exhaust pipes, the coating is cracked and falls off frequently, and the preset heat insulation effect is reduced.
For a product adopting a nail gun sewing process, for example, in a patent named as 'a pipeline heat insulation device and a manufacturing method thereof' with the application number 201610872592.5, a certain distance is left between every two nails after the nails are sewed independently; meanwhile, the nail needs to penetrate through the inner protective net, the inner heat-insulating layer, the middle heat-insulating layer, the outer heat-insulating layer and the outer protective net, and due to the fact that the high-temperature cloth adopted by the protective layer is used, after the nail penetrates through the process, a heat-insulating product forms a large pinhole gap, when the diesel engine runs and vibrates like the diesel engine, the high-temperature cloth is not limited to the two conditions, and fibers or nano dust particles are easy to overflow, potential harm is caused to human bodies, and along with falling of the particles, the heat-insulating effect and.
The process of welding protection by adopting metal as an appearance material needs to weld or rivet the two ends of a heat insulation sleeve on the end part of a pipe fitting in order to seal the two sides of the pipe fitting or prevent the heat insulation sleeve from shifting during vibration, although the possibility of overflowing of fiber or nano dust particles is temporarily solved, the phenomenon that the appearance metal material is cracked due to the fact that the heat insulation sleeve is welded on the pipe fitting easily to cause infirm welding spots due to continuous vibration during the operation of an internal combustion engine, particularly for the pipe fitting with the telescopic inner parts such as a corrugated pipe and the like. Meanwhile, the welding process is difficult, needs to be certified, causes production limitation and has extremely low production efficiency; and the process is formed by one-time welding, can not be disassembled, and can not find out the fault of the corrugated pipe or the exhaust pipe in time, thereby causing the occurrence of safety accidents. Nailing by a nail gun also has the problem that the two ends of the heat insulation sleeve are welded at the end part of the pipe fitting when the side surface is not sealed well. And some less regular pipe fittings are difficult to be completely sealed by adopting the two methods, the process requirement is high, a die needs to be opened, the cost is high, and the method is not suitable for initial investment.
The outer protective layer adopts high temperature resistant fibre cloth, and during vibrations, the nail utensil will be easily because vibrations damage the outer protective layer, makes pinhole gap grow, leads to fibre or the excessive aggravation of nanometer dust granule.
Disclosure of Invention
In view of the above, it is an object of the present invention to solve some of the problems of the prior art, or at least alleviate them.
A thermal insulating cover for covering a pipe by fastening means; comprises at least one first heat insulating sleeve; the first heat insulation sleeve comprises a heat insulation piece, and the heat insulation piece comprises an inner protection layer, a middle heat insulation layer and an outer protection layer from inside to outside; the outer protective layer is a flexible metal plate and is in edge sealing and sewing connection with the inner protective layer through sewing threads.
The thermal insulation covering piece further comprises at least one second thermal insulation sleeve with a thermal insulation piece; the second heat insulation sleeve is in seam joint with the first heat insulation sleeve.
Preferably, the second heat insulation sleeve is sewn with the first heat insulation sleeve at the sealed edge of the heat insulation piece through a sewing thread.
The first heat insulation sleeve and the adjacent first heat insulation sleeve are sewn at the edge sealing position of the heat insulation piece through the sewing thread.
Further, the sewing thread is a stainless steel wire. The outer protective layer is a nickel alloy high-temperature-resistant flexible checkered plate.
Furthermore, a fixing net is arranged at the edge sealing position of the outer protective layer and the inner protective layer.
Furthermore, a fixing net is arranged at the edge sealing position of the first heat insulation sleeve and the second heat insulation sleeve.
The heat insulation covering piece further comprises a fastening device which is arranged on the first heat insulation sleeve (7) or/and the second heat insulation sleeve (8).
Furthermore, the fastening device comprises a spring buckle, and a connecting seat and a hanging lug which are respectively arranged at two ends of the first heat insulation sleeve or two ends of the second heat insulation sleeve; one end of the spring fastener is fixed at the end part of the connecting seat, and the other end of the spring fastener is connected with the hanging lug through a hook.
The utility model discloses following beneficial effect has:
1. The outer protective layer and the inner protective layer are sealed and sewn at the edges, the gap between sewing threads is obviously smaller than the gap fixed by a nail gun and the like, and the waterproof and oil-proof performance is more excellent in the capability of preventing fiber or nano dust particles from overflowing;
2. The first heat insulation sleeve and the second heat insulation sleeve can be designed according to the specification and shape characteristics of different pipe fittings, particularly irregular pipe fittings such as bent pipes and the like, and the specification and shape characteristics of different pipe fittings are met by combining a plurality of first heat insulation sleeves and second heat insulation sleeves, so that the pipe fittings are better in sealing performance, more convenient to seal, better in heat insulation and dust prevention effects and the like on the premise of ensuring that the pipe fittings are not displaced due to vibration; in addition, the mould is not required to be opened for manufacturing like welding and the like in the initial stage, so that the cost investment in the early stage is reduced, and the cost is in a controllable state; the system can be customized according to the needs of customers;
3. The seaming tracks are all arranged at the edge sealing positions of the inner and outer protective layers, when the second heat insulation sleeve is seamed on the first heat insulation sleeve, the second heat insulation sleeve cannot penetrate through the inner and outer protective layers due to secondary seaming, so that a gap is generated again, and the prevention of overflow of fiber or nano dust particles and the like is facilitated;
4. The second heat insulation sleeve is adopted to assist the first heat insulation piece to seal the end part of the pipe fitting, so that the covering piece does not need to weld the end part any more, and the situation that the appearance metal material cracks due to infirm welding spots caused by the internal expansion of the pipe fittings such as a corrugated pipe and the like is avoided; and sew up first radiation shield and second radiation shield through the sewing thread for the junction has certain ductility, is difficult for receiving the inside flexible influence of pipe fitting.
5. The outer protective layer is made of flexible metal materials, so that damage to the heat insulation covering part caused by external force such as sharp objects like stones can be prevented; during vibration, the outer protective layer made of metal materials is difficult to damage by sewing threads, so that the service life is greatly prolonged;
6. The fastening device is adopted to fix the heat-insulation covering part, so that the installation and the disassembly are simpler, more convenient and quicker, and the labor cost is greatly reduced; and the fault of the pipe fitting can be conveniently found in time, and the potential safety hazard can be eliminated.
Drawings
The above structure of the present invention can be further explained by the non-limiting examples given in the following figures.
FIG. 1 is a schematic view of the present invention;
Fig. 2 is a cross-sectional view of an insulation member.
Wherein: 1-an inner protective layer; 2-an outer protective layer; 3-intermediate heat-insulating layer; 4-fixing the net; 5-sewing thread; 6-a connecting seat; 7-a first insulating sleeve; 8-a second insulating sleeve; 9-hanging a lug; 10-spring buckle.
Detailed Description
The following description of the present invention will be further described with reference to the accompanying drawings, and the embodiments of the present invention are only used for illustrating the present invention and not for limiting the present invention, and various replacements and modifications can be made according to the common technical knowledge and the conventional means in the field without departing from the technical idea of the present invention, and all should be included in the scope of the present invention.
As shown in fig. 1 or 2, a thermal insulation cover for covering a pipe by a fastening means; comprises at least one first insulating sleeve 7; the first heat insulation sleeve 7 comprises a heat insulation piece, and the heat insulation piece comprises an inner protection layer 1, a middle heat insulation layer 3 and an outer protection layer 2 from inside to outside; the outer protection layer 2 is a flexible metal plate and is in edge sealing and sewing connection with the inner protection layer 1 through sewing threads 5.
As shown in fig. 2, the outer protective layer 2 is sewn to the inner protective layer 1 at the edge seal by a sewing thread 5, so that the intermediate insulating layer 3 is sealed between the outer protective layer 2 and the inner protective layer 1. The seam-joining sealing method can ensure that the sealing gap is obviously smaller than the gap sealed by a nail gun, welding and the like, and has more excellent water-proof and oil-proof capability, particularly the capability of preventing fiber or nano dust particles from overflowing.
The seaming is also more suitable for the actual situation. If the pipe fittings are provided with the extension pipes, the heat insulation parts need to be provided with holes, as shown in figure 1. Adopt conventional mode, need advance trompil on the mould, if the trompil position of another pipe fitting is different just can't be used, cause very big waste. By adopting the heat insulation covering piece, holes can be formed in the manufactured heat insulation piece according to the actual size, and the edges of the holes can be sewn; alternatively, the inner and outer protective layers and the intermediate protective layer 3 may be cut to form holes and then the edges of the holes may be sewn. By adopting the mode, the operation is simple and reliable, the cost is low, and the operation can be carried out according to different requirements.
Optionally, the sewing thread is a stainless steel wire, so that the heat insulation piece is not easy to break when the pipe fitting vibrates and the like, thereby causing the sealing failure.
The outer protection layer 2 is made of flexible metal materials, so that damage to the heat insulation covering part caused by external force such as sharp objects like stones can be prevented; during vibration, the sewing thread is difficult to damage the outer protective layer made of metal materials, and the service life is greatly prolonged. And the density of the metal is greater than that of the cloth, so that oil or dust particles and the like can be better prevented from leaking out through the heat insulation covering piece, and the heat insulation covering piece is safer and more reliable. Optionally, the outer protection layer 2 is a nickel alloy high-temperature resistant flexible checkered plate, and may also be other flexible metal plates meeting the requirements.
The first insulating sleeve 7 can be rolled into a cylinder shape and fixed by the fastening means, as shown in fig. 1.
The insulating cover also comprises at least one second insulating sleeve 8 with insulating elements; the second insulating sleeve 8 is sewn to the first insulating sleeve 7. The second heat insulation sleeve 8 can be arranged on two sides of the first heat insulation sleeve 7 in a cylindrical shape, as shown in fig. 1, and is used for sealing two ends of the pipe fitting, so that the two ends of the heat insulation covering part are not required to be welded or riveted on two end parts of the pipe fitting, full sealing of the pipe fitting can be completed, the sealing effect is better, and the effects of heat insulation, dust prevention and the like are better. The situation that the appearance metal material cracks due to infirm welding points caused by the internal expansion and contraction of the pipe fittings such as the corrugated pipe and the like can be avoided; and because the first heat insulating sleeve 7 and the second heat insulating sleeve 8 are sewn through the sewing thread 5, the joint has certain ductility and is not easily affected by the expansion and contraction of the inside of the pipe fitting.
And the initial stage need not open the mould, only need make according to the specification and the shape characteristics of different pipe fittings, stitching the concatenation can, be particularly useful for some irregular pipe fittings, like the bending tube etc. can satisfy the needs of most pipe fittings. The mold is not opened, the cost investment in the early stage is reduced, the cost is in a controllable state, and the operating risk of a company is reduced. The system can be customized according to the needs of customers, and different requirements of more customers are met.
The second insulating sleeve 8 is sewn to the first insulating sleeve 7 by means of sewing threads 5 at the edge seals of the insulating element, as shown in fig. 1. The edge sealing and sewing mode is adopted, so that when the first heat insulation sleeve 7 and the second heat insulation sleeve are sewn, the sewing thread 5 does not need to pass through the middle heat insulation layer 3 again, and the problem that the heat insulation effect is reduced due to the fact that the sewing thread passes through the middle heat insulation layer 3 for multiple times is avoided. The seaming track is arranged at the edge sealing positions of the inner protective layer and the outer protective layer, the seaming gap between the inner protective layer 1 and the outer protective layer 2 is not increased, and the prevention of overflowing of fibers or nano dust particles and the like is facilitated.
The edge sealing positions of the outer protection layer 2 and the inner protection layer 1 are provided with fixing nets 4, as shown in fig. 2. The fixed net 4 can adopt the steel mesh for fix the banding of interior protective layer 1 and outer protective layer 2, and the rethread stainless steel wire line is sewed up, avoids directly sewing up sealed not firm. Meanwhile, the edge sealing can be well fixed when the pipe fitting vibrates, and the sewing thread is prevented from loosening due to violent vibration and affecting sealing. First radiation shield 7 with the banding department of second radiation shield 8 is equipped with fixed network 4, can prevent that first radiation shield 7 and second radiation shield 8 from playing the fixed action because of reasons such as vibrations separation.
The heat insulation covering part can be formed by splicing 1 or more first heat insulation sleeves 7 or second heat insulation sleeves 8, wherein the first heat insulation sleeves 7 are sewed with the adjacent first heat insulation sleeves 7 at the sealing edges of the heat insulation parts through the sewing threads 5. Adopt above-mentioned mode, more be fit for the actual conditions of pipe fitting. If the pipe is bent, the second heat insulation sleeve 8 can be spliced between the two first heat insulation sleeves 7, so that the bent part of the pipe fitting is completely sealed. The mold does not need to be opened again as in the prior art, and the initial cost input and time are greatly saved.
Of course, the insulating cover can also consist of only 1 or more first insulating sleeves 7 and be fixed to the pipe using fastening means.
The first heat insulating sleeve 7 does not need to be rolled into a cylinder shape, and can be manufactured according to the shape of the pipe fitting. And then the pipe fitting is completely sealed by sewing and splicing with the second heat insulation sleeve 8. The sealing device is suitable for non-cylindrical pipe fittings and can better seal the pipe fittings.
Adopt above-mentioned multiple concatenation mode of sewing up, and outer protective layer 2 is the flexible metal sheet of adoption, make the utility model discloses a when thermal-insulated covering can the totally enclosed pipe fitting, also have comparatively firm outer protection, the hardness combines to the heat insulating sleeve life who makes outer protective layer than the high temperature cloth among the prior art is longer, and the heat insulating sleeve that only adopts the metal sheet to do outer protective layer can complete sealed pipe fitting again, and can not lead to not firm influences such as solder joint to use because of pipe fittings that can stretch out and draw back such as bellows, and serve many purposes.
The heat insulation covering part completes the final sealing work through a fastening device. The number of fastening means can be chosen according to the actual situation. The fastening means may be an external tool, such as a cavern, a fastening ring, etc., which is fixed after the insulating cover completely wraps the pipe.
The thermal insulation covering member may further include a fastening device provided on the first thermal insulation sleeve 7 or/and the second thermal insulation sleeve 8. For example, fastening means may be provided at both ends of the first heat insulating jacket 7 which can be rolled into a cylindrical shape, and the heat insulating cover may be fastened to the pipe by the fastening means. Alternatively, fastening means may be provided at both ends of the second insulating sheath 8, as shown in fig. 1, to fasten the insulating cover to the pipe. Alternatively, the fastening means may be provided at one end of both the first heat insulating jacket 7 and the second heat insulating jacket 8.
Optionally, the fastening device may be disposed at the sealed edge of the first heat insulating sleeve 7 or the second heat insulating sleeve 8, so as to avoid the influence of heat insulation or dust prevention caused by passing through the heat insulating member.
Optionally, as shown in fig. 2, the fastening device includes a spring buckle 10, and a connecting seat 6 and a hanging lug 9 respectively disposed at two ends of the first heat insulating sleeve 7 or two ends of the second heat insulating sleeve 8; one end of the spring fastener 10 is fixed at the end part of the connecting seat 6, and the other end is connected with the hanging lug 9 through a hook. The fastening device is adopted to fix the heat-insulation covering part, so that the installation and the disassembly are simpler, more convenient and quicker, and the labor cost is greatly reduced; and the fault of the pipe fitting can be conveniently found in time, and the potential safety hazard can be eliminated.
Claims (10)
1. A thermal insulating cover for covering a pipe by fastening means; characterized in that it comprises at least one first insulating sheath (7); the first heat insulation sleeve (7) comprises a heat insulation piece, and the heat insulation piece comprises an inner protection layer (1), a middle heat insulation layer (3) and an outer protection layer (2) from inside to outside; the outer protective layer (2) is a flexible metal plate and is in edge sealing and sewing connection with the inner protective layer (1) through sewing threads (5).
2. The thermal insulation cover according to claim 1, further comprising at least one second insulating sleeve (8) with thermal insulation; the second heat insulation sleeve (8) is sewed with the first heat insulation sleeve (7).
3. The insulating cover according to claim 2, characterized in that the second insulating sleeve (8) is sewn to the first insulating sleeve (7) by means of sewing threads (5) at the sealing edges of the insulating element.
4. The insulating cover according to claim 1, characterized in that said first insulating sleeve (7) is sewn to the adjacent first insulating sleeve (7) by said sewing thread (5) at the sealing edges of the insulating element.
5. The thermal cover according to claim 1 or 3 or 4, characterized in that said sewing thread (5) is a stainless steel wire.
6. Thermal cover according to claim 1, characterized in that said outer protective layer (2) is a nickel alloy high temperature resistant flexible checkered plate.
7. The thermal insulation cover according to claim 1, characterised in that fixing nets (4) are provided at the edge sealings of the outer protective layer (2) and the inner protective layer (1).
8. The insulating covering according to claim 2, characterized in that the sealing edges of the first insulating sleeve (7) and the second insulating sleeve (8) are provided with a fixing net (4).
9. The thermal insulation cover according to claim 2, further comprising fastening means provided on said first insulating sleeve (7) or/and said second insulating sleeve (8).
10. The insulating covering according to claim 9, characterized in that said fastening means comprise a snap fastener (10) and a connecting seat (6) and a suspension lug (9) respectively provided at the two ends of said first insulating sleeve (7) or of said second insulating sleeve (8); one end of the spring fastener (10) is fixed at the end part of the connecting seat (6), and the other end of the spring fastener is connected with the hanging lug (9) through a hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922199122.9U CN211145786U (en) | 2019-12-10 | 2019-12-10 | Heat insulation covering piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922199122.9U CN211145786U (en) | 2019-12-10 | 2019-12-10 | Heat insulation covering piece |
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| Publication Number | Publication Date |
|---|---|
| CN211145786U true CN211145786U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922199122.9U Active CN211145786U (en) | 2019-12-10 | 2019-12-10 | Heat insulation covering piece |
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| CN (1) | CN211145786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369661A (en) * | 2021-06-30 | 2021-09-10 | 中国航发动力股份有限公司 | Heat preservation process method for electron beam welding joint |
-
2019
- 2019-12-10 CN CN201922199122.9U patent/CN211145786U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369661A (en) * | 2021-06-30 | 2021-09-10 | 中国航发动力股份有限公司 | Heat preservation process method for electron beam welding joint |
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