High-pressure steam rubber hose
By introducing specific structural designs and materials into the rubber tube, the electrostatic risk and wear problems during high-pressure steam transport is solved, the structural strength and service life of the hose are improved, while avoiding contamination of steam.
Patent Information
- Application Number
- CN202423226513.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-12-26
Smart Images
Figure CN223178479U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rubber hoses, and particularly relates to a high-pressure steam rubber hose. Background Art
[0002] With the development of the economy, the industry is becoming more and more developed, and rubber hoses are used in many devices. When transporting media such as petrochemical products, natural gas, combustible gases, high temperature, and high-pressure steam, due to the movement of these media, friction will occur with the inner surface of the rubber hose, generating static electricity, and the static electricity will be distributed on the outer surface of the rubber hose. The accumulation of static electricity is most likely to induce a fire, causing serious economic and property losses. In addition, rubber hoses are inevitably often dragged or even passed through narrow spaces during use, and may also frequently rub against the contacted objects due to external vibrations. Common rubber hoses have poor anti-wear performance. As the degree of wear increases, when encountering bending, the hose will be damaged, greatly reducing the service life of the hose. Moreover, when transporting high-pressure steam, since the steam directly contacts the rubber material, the rubber material has a certain pollution effect on the steam, and traditional rubber hoses are not suitable for transporting domestic steam.
[0003] Therefore, a new rubber hose is needed to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a high-pressure steam rubber hose in view of the deficiencies of the prior art. The specific scheme is as follows:
[0005] A high-pressure steam rubber hose includes a PVC pipe. The outer side of the PVC pipe is successively an inner rubber layer, a braided layer, a middle rubber layer, a compressive layer, an outer rubber layer, a flame-retardant layer, and an abrasion-resistant layer. The braided layer is spirally wound and braided by steel wires and cotton threads. The middle rubber layer partially penetrates into the gaps of the braided layer.
[0006] Based on the above, the braided layer includes multiple strands of spirally wound steel wire strands and multiple strands of spirally wound cotton thread strands. The spiral direction of the steel wire strands is opposite to the spiral direction of the cotton thread strands, and each cotton thread strand is alternately crimped with multiple steel wire strands.
[0007] Based on the above, the crimping order of adjacent two cotton thread strands to the same steel wire strand is opposite.
[0008] Based on the above, the number of strands of the steel wire strands and the cotton thread strands is odd.
[0009] Based on the above, the inner side of the PVC pipe is an anti-corrosion coating, and the material of the anti-corrosion coating is epoxy powder.
[0010] Based on the above, the compressive layer is made of a metal mesh.
[0011] Based on the above, the material of the flame retardant layer is neoprene or chlorosulfonated polyethylene.
[0012] Based on the above, the material of the wear-resistant layer is made of carboxylated nitrile butadiene rubber material added with carbon black and metal powder.
[0013] Based on the above, the metal powder can be one or more of aluminum powder, copper powder or nickel powder.
[0014] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model has the following advantages:
[0015] The high-pressure steam hose provided by the utility model has a structural design that can effectively ensure that the hose has good strength, toughness, compressive resistance, antistatic property and wear resistance. In particular, the structural design of the compressive layer can improve the structural strength of the hose while effectively eliminating static electricity. The structural design is ingenious, reasonable and highly practical. Description of the Drawings
[0016] Figure 1 is a schematic cross-sectional structure diagram of the utility model.
[0017] Figure 2 is a partial structural schematic diagram of the braided layer in the utility model.
[0018] In the figure: 1. Anticorrosive coating; 2. PVC pipe; 3. Inner rubber layer; 4. Braided layer; 4-1. Steel wire strand; 4-2. Cotton thread strand; 5. Middle rubber layer; 6. Compressive layer; 7. Outer rubber layer; 8. Flame retardant layer; 9. Wear-resistant layer. Detailed Embodiments
[0019] The following further describes the technical solutions of the utility model in detail through specific embodiments.
[0020] Embodiment
[0021] As Figure 1-2 shown, the utility model provides a high-pressure steam hose, which includes a PVC pipe 2. The outer side of the PVC pipe 2 is successively an inner rubber layer 3, a braided layer 4, a middle rubber layer 5, a compressive layer 6, an outer rubber layer 7, a flame retardant layer 8 and a wear-resistant layer 9; the braided layer 4 is spirally wound and braided by steel wires and cotton threads; part of the middle rubber layer 5 penetrates into the gaps of the braided layer 4.
[0022] The above-mentioned braided layer 4 includes multiple strands of spirally wound steel wire strands 4-1 and multiple strands of spirally wound cotton thread strands 4-2; the spiral direction of the steel wire strands 4-1 is opposite to the spiral direction of the cotton thread strands 4-2, and each cotton thread strand 4-2 is alternately crimped with multiple steel wire strands 4-1.
[0023] To ensure the structural strength of the braided layer 4, the crimping order of adjacent two cotton yarn strands 4-2 to the same steel wire strand 4-1 is opposite.
[0024] To further enhance the structural strength of the braided layer 4, the number of strands of the above-mentioned steel wire strands 4-1 and cotton yarn strands 4-2 is odd.
[0025] To ensure the service life of the rubber hose, an anti-corrosion coating 1 is provided on the inner side of the PVC pipe 2, and the material of the anti-corrosion coating 1 is epoxy powder.
[0026] The above-mentioned compressive layer 6 is made of a metal mesh, which can not only improve the compressive strength of the rubber hose but also has the function of eliminating local static electricity.
[0027] The material of the above-mentioned flame-retardant layer 8 is chloroprene rubber or chlorosulfonated polyethylene.
[0028] To improve the abrasion resistance of the rubber hose, the material of the above-mentioned wear-resistant layer 9 is made of a carboxylated nitrile rubber material added with carbon black and metal powder.
[0029] In addition, the metal powder can be one or more of aluminum powder, copper powder or nickel powder.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.
Claims
1. A high-pressure steam hose, characterized in that: It includes a PVC pipe (2), and successively on the outer side of the PVC pipe (2) are an inner rubber layer (3), a braided layer (4), a middle rubber layer (5), a compressive layer (6), an outer rubber layer (7), a flame-retardant layer (8), and an abrasion-resistant layer (9); the braided layer (4) is formed by spiral winding and braiding of steel wires and cotton threads; part of the middle rubber layer (5) penetrates into the gaps of the braided layer (4).
2. The high-pressure steam hose according to claim 1, wherein: The braided layer (4) includes multiple strands of spiral-wound steel wire strands (4-1) and multiple strands of spiral-wound cotton thread strands (4-2); the spiral direction of the steel wire strands (4-1) is opposite to the spiral direction of the cotton thread strands (4-2), and each cotton thread strand (4-2) is alternately crimped with multiple steel wire strands (4-1).
3. The high-pressure steam hose according to claim 2, wherein: The crimping order of two adjacent cotton thread strands (4-2) on the same steel wire strand (4-1) is opposite.
4. The high-pressure steam hose according to claim 2, characterized in that: The number of strands of the steel wire strands (4-1) and the cotton thread strands (4-2) is odd.
5. The high-pressure steam rubber hose according to claim 1, wherein: On the inner side of the PVC pipe (2) is an anti-corrosion coating (1), and the material of the anti-corrosion coating (1) is epoxy powder.
6. The high-pressure steam hose according to claim 1, characterized in that: The compressive layer (6) is made of a metal mesh.
7. The high-pressure steam hose according to claim 1, wherein: The material of the flame-retardant layer (8) is chloroprene rubber or chlorosulfonated polyethylene.
8. The high-pressure steam hose according to claim 1, wherein: The material of the abrasion-resistant layer (9) is made of carboxylated nitrile rubber material added with carbon black and metal powder.
9. The high-pressure steam hose according to claim 8, wherein: The metal powder can be one or more of aluminum powder, copper powder, or nickel powder.