Anti-corrosion steel pipe

Abstract

The utility model provides an anti-corrosion steel pipe which comprises a steel pipe body, a protection groove, a heat preservation layer, a protection sleeve and an installation disc, the steel pipe body comprises a protection inner layer pipe body, an outer layer pipe body and a reinforcing layer, and a plurality of sets of first reinforcing supporting rods are evenly arranged at the connecting position of the outer wall of the protection inner layer pipe body and the reinforcing layer. A first sound insulation layer is arranged between the protective inner-layer pipe body and the reinforcing layer, a plurality of second reinforcing supporting rods are evenly arranged at the joint of the outer wall of the reinforcing layer and the outer-layer pipe body, a second sound insulation layer is arranged between the reinforcing layer and the outer-layer pipe body, a protective groove is formed in the outer wall of the steel pipe body, and a heat preservation layer is arranged in the protective groove. The outer sides of the protection groove and the heat preservation layer are wrapped with protection sleeves, and the installation discs are fixed to the two ends of the steel pipe body. The sound insulation and heat preservation door can adapt to the complex corrosion environment, has good sound insulation and heat preservation performance, is provided with a convenient and fast installation structure, and improves the overall practicability and applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe technical field especially is related to a kind of anticorrosive steel pipes. BACKGROUND

[0002] Anticorrosive steel pipe refers to the steel pipe that can effectively prevent or slow down chemical or electrochemical reaction caused corrosion phenomenon in the process of transportation and use after anticorrosion process processing.Its main function is to prolong the service life of steel pipe,reduce steel pipe operating cost and reduce economic loss caused by steel pipe corrosion.

[0003] Prior art discloses the stainless steel pipe with strong compression resistance of application number: 202421958695.X, including the steel pipe body of setting;The steel pipe body is constituted by inner steel pipe and outer steel pipe, the inner steel pipe is welded in the inner side of outer steel pipe, adopts the welding method of argon arc welding and is welded, so that the wall thickness of steel pipe body whole increases, the steel pipe body is provided with hierarchical assembly, the hierarchical assembly includes the oxidation-resistant layer installed on the surface of steel pipe body, the oxidation-resistant layer is the rustproof paint material, the oxidation-resistant layer is provided with fireproof layer inside, the fireproof layer is the refractory mortar material, the fireproof layer is provided with heat insulation layer inside.The stainless steel pipe with strong compression resistance, steel pipe body is welded by inner steel pipe and outer steel pipe, adopts the welding method of argon arc welding and is welded, not only reduces the problem of cost increase caused by additional material reinforcement, but also reduces the corrosion problem caused by gap at internal connection, improves the service life of steel pipe body.But prior art still has although can improve compression resistance and corrosion resistance to some extent, but only by increasing wall thickness and setting simple oxidation-resistant layer, and the adaptability to complex and diverse corrosion environment is insufficient, for example in high humidity and containing strong corrosive chemical industrial wastewater delivery scene, cannot resist corrosion for a long time.Meanwhile, its function is relatively single, does not have sound insulation capacity, when being used in city underground pipe gallery and other occasions that have noise reduction requirements, cannot meet the demand.In addition, only provided with heat insulation layer, in the pipeline delivery scene that needs to be insulated, such as central heating system, cannot effectively maintain the temperature of medium in pipe, and energy loss is large.Moreover, there is no convenient positioning and installation auxiliary structure in installation process, so that construction efficiency is low.Therefore we propose a kind of anticorrosive steel pipe to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the above problems, the utility model provides an anticorrosive steel pipe, which can adapt to complex corrosion environment, has good sound insulation and heat preservation performance, and has a convenient installation structure, improving the overall practicality and applicability.

[0005] To solve the above problems, the technical scheme provided by the utility model is as follows:

[0006] The utility model provides an anticorrosive steel pipe, including steel pipe body, protection groove, heat preservation layer, protective sleeve and mounting disc, the steel pipe body includes protection inner layer pipe body, outer layer pipe body and reinforcing layer, the outer wall of protection inner layer pipe body is connected with even set up a plurality of reinforcing branch pole group one at reinforcing layer, the sound insulation layer no.

[0007] Further, a plurality of mounting holes are evenly distributed on the mounting disc, and the inner wall of the mounting hole is provided with a thread for cooperation with a bolt.

[0008] Further, a plurality of mounting holes are evenly distributed on the mounting disc, and the inner wall of the mounting hole is provided with a thread for cooperation with a bolt.

[0009] Further, the protection inner layer pipe body is made of stainless steel material.

[0010] Further, the reinforcing layer is a steel wire mesh layer, and the steel wire mesh is woven by high-strength carbon steel wire.

[0011] Further, the sound insulation layer no. and the sound insulation layer two are made of sound-absorbing cotton material.

[0012] Further, the heat preservation layer is made of polyurethane foam material.

[0013] Further, the protective sleeve is made of polyethylene plastic material.

[0014] Further, the reinforcing branch pole one and the reinforcing branch pole two are made of aluminum alloy material, and the reinforcing branch pole one and the reinforcing branch pole two are fixedly connected with the protection inner layer pipe body, the reinforcing layer and the outer layer pipe body respectively by welding.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. Strong corrosion resistance: stainless steel protection inner layer pipe body is matched with aluminum alloy reinforcing branch pole, which is suitable for complex corrosion environment and prolongs the service life.

[0017] 2. Excellent sound insulation: two layers of sound-absorbing cotton sound insulation layer effectively block internal and external noise and are suitable for noise-sensitive areas.

[0018] 3. Excellent heat preservation: polyurethane foam heat preservation layer reduces heat transfer, reduces energy loss and meets the heat preservation demand.

[0019] 4. Easy to install: threaded mounting hole with positioning block, mounting disc of positioning groove, improve installation accuracy and efficiency.

[0020] In summary, the anti-corrosion steel pipe has wide practicability to solve the problems in the background art that the existing technology can improve the compression resistance and corrosion resistance to a certain extent, but the adaptability to complex and diverse corrosion environments is insufficient, for example, in the industrial wastewater conveying scene with high humidity and strong corrosive chemicals, it cannot resist corrosion for a long time. At the same time, the function is relatively single and does not have sound insulation capability, and when used in urban underground pipe gallery and other occasions requiring noise reduction, it cannot meet the demand. In addition, only the heat insulation layer is provided, and in the pipeline conveying scene requiring heat preservation, such as central heating system, it cannot effectively maintain the temperature of the medium in the pipe, and the energy loss is large. Moreover, there is no convenient positioning and installation auxiliary structure in the installation process, which makes the construction efficiency low. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a structural schematic diagram of the utility model;

[0022] Fig. 2 is a side view structural schematic diagram of the steel pipe body of the utility model;

[0023] Fig. 3 is a side view structural schematic diagram of the mounting disc of the utility model.

[0024] MAIN ELEMENT SYMBOL EXPLANATION:

[0025] 1-steel pipe body, 101-protective inner layer pipe body, 102-outer layer pipe body, 103-reinforcing layer, 104-sound insulation layer one, 105-sound insulation layer two, 106-reinforcing strut one, 107-reinforcing strut two, 2-protective groove, 3-heat preservation layer, 4-protection sleeve, 5-mounting disc, 501-positioning block, 502-positioning groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model will be further described in detail below combined with the drawings and examples, but the examples are not as the limitation of the utility model.

[0027] For example, as shown in the drawings, the utility model discloses a steel pipe body, a protective inner layer pipe body, an outer layer pipe body, a reinforcing layer, a sound insulation layer one, a sound insulation layer two, a reinforcing strut one, a reinforcing strut two, a protective groove, a heat preservation layer, a protection sleeve and a mounting disc are arranged in sequence. Figs. 1-3As shown, the embodiment of the utility model includes steel pipe body 1, protection groove 2, heat preservation layer 3, protective sleeve 4 and mounting disc 5, steel pipe body 1 includes protection inner layer pipe body 101, outer layer pipe body 102 and reinforcing layer 103, the outer wall of protection inner layer pipe body 101 and the connecting place of reinforcing layer 103 are evenly provided with multiple groups of reinforcing branch 106, the sound insulation layer one 104 is arranged between protection inner layer pipe body 101 and reinforcing layer 103, the outer wall of reinforcing layer 103 and the connecting place of outer layer pipe body 102 are evenly provided with multiple groups of reinforcing branch two 107, the sound insulation layer two 105 is arranged between reinforcing layer 103 and outer layer pipe body 102.

[0028] Reinforcing branch one 106 and reinforcing branch two 107 all adopt aluminum alloy material, reinforcing branch one 106 and reinforcing branch two 107 are fixedly connected with protection inner layer pipe body 101, reinforcing layer 103 and outer layer pipe body 102 respectively by welding, reinforcing branch one 106 adopts aluminum alloy material, is evenly arranged at the connecting place of the outer wall of protection inner layer pipe body 101 and reinforcing layer 103, and is fixedly connected with protection inner layer pipe body 101 and reinforcing layer 103 by welding. Aluminum alloy material has certain strength, is relatively light, can effectively connect protection inner layer pipe body 101 and reinforcing layer 103 together without increasing too much weight, enhances the structural stability between two layers, ensures that each layer cooperates under stress without relative displacement; reinforcing branch two 107 also adopts aluminum alloy material, is evenly arranged at the connecting place of the outer wall of reinforcing layer 103 and outer layer pipe body 102, and is welded and fixed. Reinforcing branch two 107 firmly connects reinforcing layer 103 and outer layer pipe body 102, further improves the structural strength and stability of the whole steel pipe. Protection inner layer pipe body 101 adopts stainless steel material.

[0029] Reinforcing layer 103 is a steel wire mesh layer, and the steel wire mesh is woven from high-strength carbon steel wire.

[0030] Sound insulation layer one 104 and sound insulation layer two 105 all adopt sound-absorbing cotton material, sound insulation layer one 104 adopts sound-absorbing cotton material and is arranged between protection inner layer pipe body 101 and reinforcing layer 103. The sound-absorbing cotton has good sound-absorbing performance, can effectively absorb and block the noise generated by the fluid flowing in the pipe, reduces the noise propagation to the outside, and provides a relatively quiet condition for the use environment; sound insulation layer two 105 also adopts sound-absorbing cotton material and is located between reinforcing layer 103 and outer layer pipe body 102. It cooperates with sound insulation layer one 104 to further enhance the sound insulation effect and make the steel pipe perform better in sound insulation.

[0031] The outer wall of the steel pipe body 1 is provided with a protective groove 2, the protective groove 2 is provided with a heat preservation layer 3, the outer side of the protective groove 2 and the heat preservation layer 3 is wrapped with a protective sleeve 4, the heat preservation layer 3 adopts polyurethane foam material, the protective sleeve 4 adopts polyethylene plastic material, the protective groove 2 is arranged on the outer wall of the steel pipe body 1, and the main function is to provide installation space for the heat preservation layer 3, and the heat preservation layer 3 is protected to a certain extent, so that the heat preservation layer 3 is prevented from being directly damaged by external force; the heat preservation layer 3 adopts polyurethane foam material and is filled in the protective groove 2. The polyurethane foam has excellent heat preservation performance, can effectively reduce the heat transfer between the inside of the steel pipe and the outside environment, and reduce energy loss. For fluid media with temperature requirements, such as hot water, steam and the like, the heat preservation layer 3 can ensure that the medium maintains a suitable temperature during the conveying process, and improves energy utilization efficiency; the protective sleeve 4 adopts polyethylene plastic material and is wrapped on the outer side of the protective groove 2 and the heat preservation layer 3. The polyethylene plastic has good weather resistance, corrosion resistance and mechanical properties, can prevent the erosion and damage of external environmental factors (such as ultraviolet rays, rainwater, chemicals and the like) to the heat preservation layer 3 and the protective groove 2, prolongs the service life of the heat preservation layer 3 and the protective groove 2, thereby indirectly protecting the steel pipe body 1.

[0032] The mounting disc 5 is fixed at both ends of the steel pipe body 1, a plurality of mounting holes are arranged on the mounting disc 5, the inner wall of the mounting hole is provided with a thread for cooperation with a bolt, and the mounting disc 5 is uniformly provided with a positioning block 501 at one side edge and is provided with a positioning groove 502 at the corresponding position on the other side, the shapes of the positioning block 501 and the positioning groove 502 are opposite to each other, in the installation process, the positioning block 501 can be inserted into the positioning groove 502 of the adjacent steel pipe mounting disc, so as to play a positioning role, ensure that the steel pipes can be accurately aligned when connected, improve the installation precision and efficiency, and guarantee the sealing performance and stability of the whole pipeline system.

[0033] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A corrosion-proof steel pipe comprising a steel pipe body (1), a protective groove (2), a thermal insulation layer (3), a protective sleeve (4) and a mounting disc (5), characterized in that, The steel pipe body (1) comprises a protective inner layer pipe body (101), an outer layer pipe body (102) and a reinforcing layer (103), the outer wall of the protective inner layer pipe body (101) is uniformly provided with a plurality of reinforcing strut groups one (106) at the connection with the reinforcing layer (103), the protective inner layer pipe body (101) and the reinforcing layer (103) are provided with a sound insulation layer one (104) therebetween, the outer wall of the reinforcing layer (103) is uniformly provided with a plurality of reinforcing strut groups two (107) at the connection with the outer layer pipe body (102), the reinforcing layer (103) and the outer layer pipe body (102) are provided with a sound insulation layer two (105) therebetween, the outer wall of the steel pipe body (1) is provided with a protective groove (2), the protective groove (2) is provided with a heat preservation layer (3) therein, the outer side of the protective groove (2) and the heat preservation layer (3) is wrapped with a protective sleeve (4), and the mounting disc (5) is fixed at both ends of the steel pipe body (1).

2. A corrosion protected steel pipe as defined in claim 1, wherein A plurality of mounting holes are uniformly arranged on the mounting disc (5), and the inner wall of the mounting hole is provided with a thread for cooperation with a bolt.

3. A corrosion protected steel pipe as defined in claim 2 wherein, A positioning block (501) is uniformly arranged at one side edge of the mounting disc (5), and a positioning groove (502) is arranged at the corresponding position on the other side, and the shapes of the positioning block (501) and the positioning groove (502) are opposite to each other.

4. A corrosion protected steel pipe as defined in claim 3 wherein, The protective inner layer pipe body (101) is made of stainless steel.

5. A corrosion protected steel pipe as defined in claim 4 wherein, The reinforcing layer (103) is a steel wire mesh layer, and the steel wire mesh is woven by high-strength carbon steel wire.

6. A corrosion protected steel pipe as defined in claim 5 wherein, The sound insulation layer one (104) and the sound insulation layer two (105) are both made of sound-absorbing cotton material.

7. A corrosion protected steel pipe as defined in claim 6 wherein, The heat preservation layer (3) is made of polyurethane foam material.

8. A corrosion protected steel pipe as defined in claim 7, wherein The protective sleeve (4) is made of polyethylene plastic material.

9. A corrosion protected steel pipe as defined in claim 8 wherein, The reinforcing strut groups one (106) and the reinforcing strut groups two (107) are both made of aluminum alloy material, and the reinforcing strut groups one (106) and the reinforcing strut groups two (107) are fixedly connected with the protective inner layer pipe body (101), the reinforcing layer (103) and the outer layer pipe body (102) respectively by welding.

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