High-pressure-resistant loading arm

Abstract

The utility model belongs to the technical field of crane pipes, and particularly relates to a high-pressure-resistant crane pipe which comprises a crane pipe light base layer. The outer thermal insulation layer is fixedly connected to the inner side of the crane pipe light base layer; the inner thermal insulation layer is arranged on the inner wall of the outer thermal insulation layer; the inner anti-corrosion protection layer is fixedly connected to the inner side of the inner heat preservation layer, and the inner anti-corrosion protection layer comprises an anti-corrosion base layer fixedly connected to the inner wall of the inner heat preservation layer. The anti-corrosion treatment layers are arranged on the inner side and the outer side of the crane pipe, the inner anti-corrosion protection layer is composed of the anti-corrosion base layer and the metal layer arranged on the anti-corrosion base layer, and the cathode protection coating is arranged on the metal layer, so that corrosion reaction can be inhibited, the inner wall of the crane pipe is protected, and the service life of the crane pipe is prolonged. The outer anti-corrosion layer mainly protects the crane pipe through the anti-corrosion coating, and the problem that the anti-corrosion effect of the crane pipe at the present stage is not good enough is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane pipes, in particular to a high-pressure resistant crane pipe. Background Art

[0002] The crane pipe, also known as the liquid loading and unloading arm, is a mechanical equipment used for loading and unloading liquids; its main components include a rotary joint, an inner arm, an outer arm, a vertical pipe control system, etc., and these components can be used to load and unload liquid media.

[0003] After searching, the patent number CN202022846084.4 discloses a high-pressure resistant crane pipe. This solution insulates the pipeline through the setting of an insulation layer, so that even in the cold winter, the liquid in the pipeline will not freeze. The strength of the pipeline is improved by setting a pressure-resistant layer and a reinforcement layer... However, this solution still has some defects and shortcomings when used. First, there is a lack of anti-corrosion treatment layer on the inner and outer walls of the crane pipe. The crane pipe is generally used for the transportation of petroleum, industrial and chemical liquids, which are highly corrosive. Therefore, the inner wall of the crane pipe is easily corroded, and there is still a hidden danger of corrosion from chemical substances on its outer wall. At the same time, the thermal insulation effect in this solution is single, which makes its thermal insulation effect not good enough, so it needs to be improved. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a high-pressure resistant crane pipe, which is achieved by arranging anti-corrosion treatment layers on the inner and outer sides of the crane pipe, wherein the inner anti-corrosion protection layer is composed of an anti-corrosion base layer and a metal layer arranged on the anti-corrosion base layer, and a cathodic protection coating is provided on the metal layer, which can inhibit the occurrence of corrosion reactions and form protection for the inner wall of the crane pipe. The outer anti-corrosion layer mainly protects the crane pipe through the anti-corrosion coating, solving the problem that the anti-corrosion effect of the crane pipe is not good enough at this stage.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A high-pressure resistant crane pipe comprises: a lightweight base layer for the crane pipe; an outer thermal insulation layer, the outer thermal insulation layer being fixedly connected to the inner side of the lightweight base layer for the crane pipe; an inner thermal insulation layer, the inner thermal insulation layer being arranged on the inner wall of the outer thermal insulation layer; an inner anti-corrosion protective layer, the inner anti-corrosion protective layer being fixedly connected to the inner side of the inner thermal insulation layer, the inner anti-corrosion protective layer comprising an anti-corrosion base layer fixedly connected to the inner wall of the inner thermal insulation layer, and a cathodic protection coating being arranged on the metal layer fixed on the inner side of the anti-corrosion base layer, the cathodic protection coating being able to make the inner wall of the crane pipe a cathode, thereby inhibiting the occurrence of corrosion reactions.

[0007] Furthermore, the outer insulation layer is a metal insulation layer.

[0008] Furthermore, the inner thermal insulation layer is a vacuum thermal insulation treatment layer.

[0009] Furthermore, a high-pressure resistant reinforcement layer is fixedly connected to the outer wall of the lightweight base layer of the crane pipe.

[0010] Furthermore, an outer anti-corrosion layer is fixedly connected to the outer wall of the high-pressure resistant reinforcement layer, and the outer anti-corrosion layer includes an outer metal protective layer fixedly connected to the outer wall of the high-pressure resistant reinforcement layer, and an anti-corrosion coating coated on the outer surface of the outer metal protective layer.

[0011] Compared with the prior art, the present invention provides a high-pressure resistant crane pipe with the following beneficial effects:

[0012] The utility model arranges an inner corrosion protection layer on the inner wall of the inner thermal insulation layer. The inner corrosion protection layer mainly includes an anti-corrosion base layer, a metal layer and a cathodic protection coating arranged on the metal layer. The anti-corrosion base layer is a nickel alloy. The nickel alloy itself has good corrosion resistance. A metal layer is arranged on the inner wall of the anti-corrosion base layer, and a cathodic protection coating is arranged on the metal layer. The inner wall of the crane pipe can be used as a cathode, thereby suppressing the occurrence of corrosion reaction and preventing the liquid flowing through the inner wall of the crane pipe from corroding it. At the same time, an outer corrosion protection layer is arranged on the outside of the crane pipe. The outer corrosion protection layer is composed of an outer metal protective layer and an anti-corrosion coating arranged on the outer metal protective layer. It can block direct contact between chemical substances and metal, thereby reducing corrosion and forming protection for the crane pipe. Therefore, the utility model can simultaneously provide corrosion protection for the inner and outer walls of the crane pipe, effectively extending its service life.

[0013] The utility model provides an outer insulation layer and an inner insulation layer, wherein the outer insulation layer is a metal insulation layer, and the crane pipe is insulated by using an insulating metal material, while the inner insulation layer uses a vacuum insulation treatment layer to insulate the liquid, thereby avoiding heat dissipation and effectively increasing the insulation treatment effect. By providing a high-pressure resistant reinforcement layer, the high-pressure resistance strength of the crane pipe can be guaranteed and it is not easy to be damaged. By providing a lightweight base layer of the crane pipe, the overall weight of the crane pipe can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the inner anti-corrosion protective layer in the present invention;

[0016] Figure 3 This is a schematic structural diagram of the outer and inner anti-corrosion layers of the present invention.

[0017] In the figure: 1. Lightweight base layer of crane pipe; 2. External insulation layer; 3. Internal insulation layer; 4. Internal anti-corrosion protective layer; 401. Anti-corrosion base layer; 402. Metal layer; 403. Cathodic protection coating; 5. High-pressure resistant reinforcement layer; 6. External anti-corrosion layer; 601. External metal protective layer; 602. Anti-corrosion coating. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0019] like Figure 1 and Figure 2 As shown, a high-pressure resistant crane pipe proposed in one embodiment of the present invention includes: a crane pipe lightweight base layer 1; an outer thermal insulation layer 2, the outer thermal insulation layer 2 is fixedly connected to the inner side of the crane pipe lightweight base layer 1; an inner thermal insulation layer 3, the inner thermal insulation layer 3 is arranged on the inner wall of the outer thermal insulation layer 2; an inner anti-corrosion protection layer 4, the inner anti-corrosion protection layer 4 is fixedly connected to the inner side of the inner thermal insulation layer 3, the inner anti-corrosion protection layer 4 includes an anti-corrosion base layer 401 fixedly connected to the inner wall of the inner thermal insulation layer 3, and a cathodic protection coating 403 is provided on the metal layer 402 fixed on the inner side of the anti-corrosion base layer 401, and the cathodic protection coating 403 can make the inner wall of the crane pipe a cathode, thereby inhibiting the occurrence of corrosion reaction.

[0020] It should be noted that the crane pipe lightweight base layer 1 is the basic part of the crane pipe. The crane pipe lightweight base layer 1 is made of aluminum alloy material, the overall texture is relatively hard, and the weight is relatively light, which is convenient for carrying, transporting and moving the crane pipe. By arranging an outer insulation layer 2 on the inner wall of the crane pipe lightweight base layer 1, the outer insulation layer 2 can be preliminarily insulated in the form of a metal insulation layer. By arranging an inner insulation layer 3 on the inner side of the outer insulation layer 2, the inner insulation layer 3 is a vacuum insulation treatment layer, which can greatly prevent the heat from dissipating and achieve the purpose of thermal insulation protection. The outer insulation layer 2 and the inner insulation layer 3 cooperate with each other to realize the insulation treatment of the liquid in the crane pipe. An inner anti-corrosion protection layer 4 is arranged on the side, and the inner anti-corrosion protection layer 4 is composed of an anti-corrosion base layer 401, a metal layer 402 and a cathodic protection coating 403. The anti-corrosion base layer 401 is fixed on the inner side of the inner thermal insulation layer 3 and can perform a certain anti-corrosion effect. The anti-corrosion base layer 401 is made of nickel alloy material with good anti-corrosion performance, and a cathodic protection coating 403 is arranged on the metal layer 402. The cathodic protection coating 403 can make the inner wall of the crane pipe a cathode, thereby inhibiting the occurrence of corrosion reaction and playing an anti-corrosion protection role for the inner wall of the crane pipe. Therefore, this crane pipe has good thermal insulation effect and anti-corrosion effect, thereby upgrading the performance of the crane pipe.

[0021] like Figure 1 As shown, in some embodiments, the outer insulation layer 2 is a metal insulation layer.

[0022] It should be noted that the metal insulation layer is made of insulating metal material, which can achieve a certain insulation effect and further prevent heat from dissipating.

[0023] like Figure 1 As shown, in some embodiments, the inner insulation layer 3 is a vacuum insulation treatment layer.

[0024] It should be noted that the vacuum insulation layer has excellent thermal insulation performance, which can effectively prevent heat from dissipating, and then play the role of thermal insulation treatment of the liquid in the crane pipe.

[0025] like Figure 1 As shown, in some embodiments, a high-pressure resistant reinforcement layer 5 is fixedly connected to the outer wall of the crane pipe lightweight base layer 1.

[0026] It should be noted that the high-pressure resistant reinforcement layer 5 is made of a base steel material, which has good strength and can ensure the high-pressure resistant strength of the crane pipe.

[0027] like Figure 1 and Figure 3 As shown, in some embodiments, an outer anti-corrosion layer 6 is fixedly connected to the outer wall of the high-pressure resistant reinforcement layer 5, and the outer anti-corrosion layer 6 includes an outer metal protective layer 601 fixedly connected to the outer wall of the high-pressure resistant reinforcement layer 5, and an anti-corrosion coating 602 coated on the outer surface of the outer metal protective layer 601.

[0028] It should be noted that by providing an outer anti-corrosion layer 6 on the outside of the high-pressure resistant reinforcement layer 5, anti-corrosion treatment of the outside of the crane pipe can be achieved. The outer anti-corrosion layer 6 is composed of an outer metal protective layer 601 and an anti-corrosion coating 602 coated on the outside of the outer metal protective layer 601. The setting of the anti-corrosion coating 602 can block the contact between chemical substances and the outer metal protective layer 601, thereby effectively reducing corrosion and forming anti-corrosion protection for the outside of the crane pipe.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high pressure resistant crane pipe, characterized in that: include: Crane pipe lightweight base (1); An outer thermal insulation layer (2), the outer thermal insulation layer (2) being fixedly connected to the inner side of the crane pipe lightweight base layer (1); An inner thermal insulation layer (3), the inner thermal insulation layer (3) being arranged on the inner wall of the outer thermal insulation layer (2); An inner anti-corrosion protective layer (4), wherein the inner anti-corrosion protective layer (4) is fixedly connected to the inner side of the inner thermal insulation layer (3), the inner anti-corrosion protective layer (4) comprises an anti-corrosion base layer (401) fixedly connected to the inner wall of the inner thermal insulation layer (3), and a cathodic protective coating (403) is provided on the metal layer (402) fixed on the inner side of the anti-corrosion base layer (401), and the cathodic protective coating (403) can make the inner wall of the crane pipe a cathode, thereby inhibiting the occurrence of corrosion reaction.

2. The high-pressure resistant crane pipe according to claim 1, characterized in that: The outer thermal insulation layer (2) is a metal thermal insulation layer.

3. The high-pressure resistant crane pipe according to claim 1, characterized in that: The inner thermal insulation layer (3) is a vacuum thermal insulation treatment layer.

4. The high-pressure resistant crane pipe according to claim 1, characterized in that: A high-pressure-resistant reinforcement layer (5) is fixedly connected to the outer wall of the crane pipe lightweight base layer (1).

5. The high-pressure resistant crane pipe according to claim 4, characterized in that: An outer anti-corrosion layer (6) is fixedly connected to the outer wall of the high-pressure resistant reinforcement layer (5), and the outer anti-corrosion layer (6) comprises an outer metal protective layer (601) fixedly connected to the outer wall of the high-pressure resistant reinforcement layer (5), and an anti-corrosion coating (602) coated on the outer surface of the outer metal protective layer (601).

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