CN219796411U - Reinforced lining hose for repairing soft lining pipe - Google Patents
Reinforced lining hose for repairing soft lining pipe Download PDFInfo
- Publication number
- CN219796411U CN219796411U CN202223560126.3U CN202223560126U CN219796411U CN 219796411 U CN219796411 U CN 219796411U CN 202223560126 U CN202223560126 U CN 202223560126U CN 219796411 U CN219796411 U CN 219796411U
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- Prior art keywords
- layer
- resin
- reinforced
- liner
- hose
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Links
- 239000011347 resin Substances 0.000 claims abstract description 107
- 229920005989 resin Polymers 0.000 claims abstract description 107
- 238000010521 absorption reaction Methods 0.000 claims abstract description 34
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 239000004760 aramid Substances 0.000 claims description 3
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 230000002745 absorbent Effects 0.000 description 30
- 239000002250 absorbent Substances 0.000 description 30
- 239000003365 glass fiber Substances 0.000 description 16
- 229920006395 saturated elastomer Polymers 0.000 description 6
- 239000012209 synthetic fiber Substances 0.000 description 6
- 229920002994 synthetic fiber Polymers 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model relates to the technical field of soft liner tube repair, in particular to a reinforced liner tube for soft liner tube repair, which comprises an outer layer covering layer, an outer layer resin absorbing layer, a reinforced fiber layer and an inner layer resin absorbing layer, wherein the inner layer resin absorbing layer is arranged in the inner wall of the reinforced fiber layer; according to the utility model, a layer of reinforcing fibers is sandwiched between the inner layer and the outer layer of the resin absorption material, and the resin in the inner resin absorption layer and the outer resin absorption layer encapsulates the fiber layer, so that the resin absorption material is free from the influence of water and other corrosive materials, and the wicking problem is eliminated.
Description
Technical Field
The utility model relates to a lining hose, in particular to an enhanced lining hose for repairing a soft lining pipe, and belongs to the technical field of soft lining pipe repairing.
Background
Most liners in liner hose applications use a layer of nonwoven felt as the resin absorbent layer of the liner hose. One of the purposes of the felt is to provide support for the uncured resin impregnating the liner hose. In the past, practitioners in the liner hose industry have also used a layer of fiberglass as a resin absorbent for the liner hose. The fiberglass mat provides greater structural strength to the uncured and cured innerliner than the nonwoven mat. Despite its superior strength characteristics, glass fibers do not replace felt as the preferred medium for the resin absorbent layer due to the wicking problems associated with glass fibers.
Cured in place liners are typically installed in environments that are continuously exposed to water and other corrosive materials. The cured in place liner may also be exposed to different temperatures and flow conditions. The bond between the glass fiber and the cured resin is subject to constant stress and strain due to the difference in the coefficients of expansion of the resin and the glass fiber. Over time, repeated expansion and contraction of the resin and glass fibers will create a tiny space between the resin and the glass fiber reinforced plastic fibers due to changes in temperature and flow conditions. For conventional cured in place liners using glass fibers, the glass fibers on the inner and outer surfaces of the liner are exposed to water and other corrosive materials. Water and other corrosive materials are absorbed into the minute spaces adjacent to the exposed glass fibers due to capillary or capillary action. The absorption of water and other aggressive materials enhances the expansion and contraction of the resin and glass fibers, further deteriorating the bond between the resin and glass fibers. Corrosion reactions with resin/glass fiber laminates also exacerbate the deterioration of the bond between the resin and the glass fibers. The space between the resin and the glass fiber becomes larger and larger due to the wicking action. Furthermore, as the space between the resin and a given fiber grows in size and length, previously unexposed glass fibers adjacent to the exposed fibers become exposed to water and other corrosive materials. Over time, wicking of water and other corrosive materials can break the bond between the resin and the glass fibers. When this occurs, the forced restraint of the glass fibers is lost, resulting in the liner losing a substantial portion of its structural strength, thereby prematurely ending the service life of the liner.
The present utility model has been made in view of this.
Disclosure of Invention
The present utility model has been made in order to solve the above-mentioned problems, and an object of the present utility model is to provide a reinforced liner hose for a liner tube repair, which is constructed such that a reinforcing fiber layer is sandwiched between an inner layer and an outer layer of a resin absorbent material, the resin in the inner resin absorbent layer and the outer resin absorbent layer encapsulating the fiber layer and protecting it from water and other corrosive materials, and thus the resin absorbent material serves as a protective veil surrounding the reinforcing fiber layer, and the wicking problem is virtually eliminated since the reinforcing fiber is not exposed to water or other corrosive materials.
The utility model realizes the aim through the following technical scheme that the reinforced lining hose for repairing the soft lining pipe comprises an outer covering layer, an outer resin absorption layer, a reinforced fiber layer and an inner resin absorption layer, wherein the inner resin absorption layer is arranged in the inner wall of the reinforced fiber layer, the outer resin absorption layer is arranged in the inner wall of the outer covering layer, and the reinforced fiber layer is arranged between the outer resin absorption layer and the inner resin absorption layer.
In practice of the utility model, the utility model is resin-absorbed by the outer and inner resin-absorbing layers, which are saturated in use by the curable resin, integrally introduced into the pipe, shaped to align with the pipe, and cured in place to form a rigid liner, the reinforcing fiber layers having greater tensile or radial strength than at least one of the inner or outer resin-absorbing layers when saturated with resin, the resin in the outer and inner resin-absorbing layers encapsulating the fiber layers and protecting them from water and other corrosive materials, and thus the outer and inner resin-absorbing layers acting as protective veils around the reinforcing fiber layers, the wicking problem being virtually eliminated as the reinforcing fibers are not exposed to water or other corrosive materials.
A layer of reinforcing fibers is sandwiched between the outer resin absorbent layer and the inner resin absorbent layer to strengthen the liner hose, the reinforcing fibers being located between the inner and outer layers of resin absorbent material, the resin absorbent material being saturated with curable resin prior to installation of the tubular liner, the resin from the outer and inner resin absorbent layers wrapping the synthetic fiber layers by protecting the synthetic fiber layers from water and other corrosive materials, the cured liner being configurable to withstand greater external and internal loads than a conventional cured in place liner, the reinforced liner hose requiring less resin absorbent material and less resin to fully saturate the liner hose than a conventional cured in place liner due to its increased strength, and therefore the liner hose of the present utility model requires less material to produce a stronger final product. In addition, the inner lining hose of the utility model reduces the curing time because of the smaller volume of the cured resin, thereby saving additional funds
Further, the reinforcing fiber layer is specifically aromatic polyamide fiber, and synthetic fiber spun from linear polyamide containing aromatic rings has the characteristics of high strength, high modulus, low specific gravity, excellent high temperature resistance, chemical corrosion resistance, self-extinguishing property and the like.
Further, the outer resin absorption layer and the inner resin absorption layer are both non-woven polyester felt, and have higher resin absorption capacity.
Further, be provided with the impermeable layer on the outer wall of reinforcing fiber layer, be provided with the perforation plastic film on the inner wall of reinforcing fiber layer, play better guard effect.
Further, the reinforcing fiber layer is adhered to the outer resin absorption layer and the inner resin absorption layer in a welding mode, so that the connection strength is ensured.
The utility model has the technical effects and advantages that: the present utility model sandwiches a layer of reinforcing fibers between the outer resin absorbent layer and the inner resin absorbent layer, the resin in the outer resin absorbent layer and the inner resin absorbent layer encapsulating the fibrous layer and protecting it from water and other corrosive materials, and therefore, the outer resin absorbent layer and the inner resin absorbent layer act as protective veils around the reinforcing fiber layer, virtually eliminating wicking problems since the reinforcing fibers are not exposed to water or other corrosive materials.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1. an outer cover layer; 2. an outer resin absorption layer; 3. a reinforcing fiber layer; 4. an inner resin absorption layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a reinforced liner hose for repairing a liner tube comprises an outer covering layer 1, an outer resin absorbing layer 2, a reinforcing fiber layer 3 and an inner resin absorbing layer 4, wherein the inner resin absorbing layer 4 is arranged in the inner wall of the reinforcing fiber layer 3, the outer resin absorbing layer 2 is arranged in the inner wall of the outer covering layer 1, and the reinforcing fiber layer 3 is arranged between the outer resin absorbing layer 2 and the inner resin absorbing layer 4.
In practical use of the present utility model, the present utility model is absorbed by the outer resin absorbent layer 2 and the inner resin absorbent layer 4, the outer resin absorbent layer 2 and the inner resin absorbent layer 4 are saturated by the curable resin in use, the whole is introduced into a pipe, shaped to align with the pipe and cured in place to form a rigid liner, when the outer resin absorbent layer 2 and the inner resin absorbent layer 4 are saturated with resin, the reinforcing fiber layer 3 has a greater tensile strength or radial strength than at least one of the inner or outer layers of the resin absorbent material, the resin in the outer resin absorbent layer 2 and the inner resin absorbent layer 4 encapsulates the fiber layer and protects it from water and other corrosive materials, and thus the outer resin absorbent layer 2 and the inner resin absorbent layer 4 serve as protective veils around the reinforcing fiber layer 3, and the wicking problem is virtually eliminated because the reinforcing fibers are not exposed to water or other corrosive materials.
By adopting the technical solution of the present utility model, a layer of reinforcing fibers is sandwiched between the outer resin absorption layer 2 and the inner resin absorption layer 4 to reinforce the lining hose, the reinforcing fiber layer 3 is located between the inner and outer layers of resin absorption material, the resin absorption material is saturated in curable resin before the tubular liner is installed, the resin from the outer resin absorption layer 2 and the inner resin absorption layer 4 wraps the synthetic fiber layer by protecting the synthetic fiber layer from water and other corrosive materials, the cured liner can be configured to withstand greater external and internal loads than the conventional cured in place liner, and the reinforcing lining hose requires less resin absorption material and less resin than the conventional cured in place liner to fully saturate the lining hose due to its increased strength, so that the lining hose of the present utility model requires less material to produce a stronger final product. In addition, the inner lining hose of the utility model reduces the curing time because of the smaller volume of the cured resin, thereby saving additional funds
As a technical optimization scheme of the utility model, the reinforced fiber layer 3 is specifically aromatic polyamide fiber, and synthetic fiber spun by linear polyamide containing aromatic rings has the characteristics of high strength, high modulus, low specific gravity, excellent high temperature resistance, chemical corrosion resistance, self-extinguishing property and the like.
As a technical optimization scheme of the utility model, the outer resin absorption layer 2 and the inner resin absorption layer 4 are both non-woven polyester felt, and have higher resin absorption capacity.
As a technical optimization scheme of the utility model, the impermeable layer is arranged on the outer wall of the reinforced fiber layer 3, and the perforated plastic film is arranged on the inner wall of the reinforced fiber layer 3, so that a better protection effect is achieved.
As a technical optimization scheme of the utility model, the reinforcing fiber layer 3 is bonded with the outer resin absorption layer 2 and the inner resin absorption layer 4 in a welding mode, so that the connection strength is ensured.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. A reinforced liner hose for use in the repair of a flexible liner, comprising: including outer stratum reticulare (1), outer resin absorbed layer (2), reinforcing fiber layer (3) and inlayer resin absorbed layer (4), inlayer resin absorbed layer (4) set up in the inner wall of reinforcing fiber layer (3), outer resin absorbed layer (2) set up in the inner wall of outer stratum reticulare (1), reinforcing fiber layer (3) set up in between outer resin absorbed layer (2) and inlayer resin absorbed layer (4).
2. A lined reinforced hose for liner repair according to claim 1, wherein: the reinforcing fiber layer (3) is specifically an aromatic polyamide fiber.
3. A lined reinforced hose for liner repair according to claim 1, wherein: the outer resin absorption layer (2) and the inner resin absorption layer (4) are both non-woven polyester felt.
4. A lined reinforced hose for liner repair according to claim 1, wherein: an impermeable layer is arranged on the outer wall of the reinforced fiber layer (3).
5. A lined reinforced hose for liner repair according to claim 1, wherein: the inner wall of the reinforced fiber layer (3) is provided with a perforated plastic film.
6. A lined reinforced hose for liner repair according to claim 1, wherein: the reinforcing fiber layer (3) is bonded to the outer resin absorption layer (2) and the inner resin absorption layer (4) by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223560126.3U CN219796411U (en) | 2022-12-30 | 2022-12-30 | Reinforced lining hose for repairing soft lining pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223560126.3U CN219796411U (en) | 2022-12-30 | 2022-12-30 | Reinforced lining hose for repairing soft lining pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219796411U true CN219796411U (en) | 2023-10-03 |
Family
ID=88183733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223560126.3U Active CN219796411U (en) | 2022-12-30 | 2022-12-30 | Reinforced lining hose for repairing soft lining pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219796411U (en) |
-
2022
- 2022-12-30 CN CN202223560126.3U patent/CN219796411U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |