Long-distance heat supply network steam pipeline with anti-corrosion structure

Abstract

The utility model discloses a long-distance heat supply network steam pipeline with an anti-corrosion structure, which comprises a heat supply network steam main pipeline and a heat supply network steam connecting pipeline, the end part of the heat supply network steam main pipeline is sleeved with a connecting ring a, and the end part of the heat supply network steam connecting pipeline is sleeved with a connecting ring b; the connecting ring a and the connecting ring b are arranged in an attached mode, and a fixing ring is installed outside the heat supply network steam main pipeline and located on the rear side of the connecting ring a; a rotating groove is formed in the upper end of the side wall of the fixing ring, a hinge rod is assembled in the rotating groove, and a hinge plate is assembled on the outer wall of the hinge rod; a limiting hoop is assembled at the top end of the hinged plate and connected to the joint of the connecting ring a and the connecting ring b in a sleeving mode. According to the long-distance heat supply network steam pipeline with the anti-corrosion structure, the limiting hoop is arranged at the butt joint position of the long-distance heat supply network steam pipeline and the anti-corrosion bolt body, the joint position can be sealed, hooped and fixed, and under fastening of the anti-falling bolt body, the problem that when the steam pipeline shakes, the steam pipeline is prone to falling off, and normal work of the steam pipeline is affected is solved.

Description

Technical Field

[0001] This utility model relates to the field of long-distance heat transmission network steam pipeline technology, specifically a long-distance heat transmission network steam pipeline with an anti-corrosion structure. Background Technology

[0002] Steam pipelines have good mechanical and thermal insulation properties. Under normal circumstances, they can withstand high temperatures of 120℃. Through modification or combination with other insulation materials, they can withstand high temperatures of 180℃. They are suitable for insulation projects of various cold and hot water high and low temperature pipelines. Long-distance heat transmission network steam pipelines are in harsh environments of high temperature, high pressure and high humidity for a long time, which makes them very susceptible to corrosion, resulting in thinning of the pipeline wall, decrease in strength, and even causing safety accidents such as leakage and explosion.

[0003] However, in the existing technology, when using steam pipelines in long-distance heat transmission networks, it is necessary to connect the steam pipelines together. Usually, flanges and bolts are used to connect the steam pipelines. However, when the steam pipelines shake, they are prone to falling off, which affects the normal operation of the steam pipelines. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a long-distance heat transmission network steam pipeline with a corrosion-resistant structure, in order to solve the problem mentioned in the background art that, when using long-distance heat transmission network steam pipelines, it is necessary to connect the steam pipelines together. Usually, flanges and bolts are used to connect the steam pipelines. However, when the steam pipeline shakes, it is easy for the steam pipeline to fall off, which affects the normal operation of the steam pipeline.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a long-distance heat network steam pipeline with an anti-corrosion structure, comprising a heat network steam main pipeline and a heat network steam connecting pipeline, wherein a connecting ring a is sleeved at the end of the heat network steam main pipeline and a connecting ring b is sleeved at the end of the heat network steam connecting pipeline.

[0006] The connecting ring a and connecting ring b are fitted together, and a bearing ring is installed on the outside of the main steam pipeline of the heating network, located behind the connecting ring a;

[0007] The upper end of the side wall of the bearing ring is provided with a rotating groove, the rotating groove is equipped with a hinge rod, and the outer wall of the hinge rod is equipped with a hinge plate.

[0008] The top of the hinge plate is fitted with a limiting hoop, which is sleeved at the connection between connecting ring a and connecting ring b.

[0009] Both ends of the opening of the limiting hoop are equipped with fastening plates, and fastening holes are opened through the side walls of the fastening plates. Bolt bodies are assembled inside the fastening holes.

[0010] The exterior of the main steam pipeline and the connecting steam pipeline of the heating network are coated with an anti-corrosion coating.

[0011] As a preferred embodiment of this utility model, the bottom end of the bolt body is provided with a circular groove, the bolt rod is installed inside the circular groove, the bolt rod passes through the fastening hole and is screwed with a nut, the end of the bolt rod is provided with a fastening groove, and a fastening bolt is assembled inside the fastening groove.

[0012] As a preferred embodiment of this utility model, the fastening groove has four slots inside, and the inner wall of the fastening groove has a reverse internal thread that mates with the external thread of the fastening bolt.

[0013] As a preferred embodiment of this utility model, a fixing ring is fitted around the outside of the bolt rod, and an annular pressure plate, a spring, and an annular rubber sheet are fitted around the circumferential surface of the bolt rod.

[0014] As a preferred embodiment of this invention, an extrusion plate is fixedly installed at the lower edge of the annular pressure plate.

[0015] As a preferred embodiment of this invention, the inner walls of the connecting ring a and the connecting ring b are fitted with a rubber pad layer b.

[0016] As a preferred embodiment of this utility model, slots are provided around the sidewalls of the connecting ring a, and insert rods are installed around the sidewalls of the connecting ring b, with the insert rods being inserted into the slots.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This long-distance heat network steam pipeline with an anti-corrosion structure is simple in structure and easy to operate. It is connected by setting connecting rings a and b at the connection between the main steam pipeline and the connecting steam pipeline of the heat network. A limiting clamp is set at the connection point to seal and fix the connection. With the tightening of the anti-loosening bolt body, the steam pipeline is prevented from easily falling off when shaking, which would affect the normal operation of the steam pipeline. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the limiting clamp of this utility model;

[0021] Figure 3 This is a schematic diagram of the bolt body of this utility model;

[0022] Figure 4 This is a top view of the bolt rod of this utility model.

[0023] In the diagram: 1. Main steam pipeline of the heating network; 2. Steam connection pipeline of the heating network; 3. Limiting clamp; 4. Bearing ring; 5. Connecting ring; 6. Slot; 7. Rubber pad b; 8. Insert rod; 9. Connecting ring b; 10. Hinge plate; 11. Hinge rod; 12. Bolt body; 121. Bolt rod; 122. Annular rubber sheet; 123. Circular groove; 124. Annular pressure plate; 125. Extrusion plate; 126. Fixing ring; 127. Spring; 13. Fastening hole; 14. Fastening hole; 15. Fastening groove; 16. Fastening bolt; 17. Reverse internal thread; 18. Groove; 19. Rubber pad a. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution:

[0026] In this technical solution, a long-distance heating network steam pipeline with an anti-corrosion structure includes a main heating network steam pipeline 1 and a connecting heating network steam pipeline 2. A connecting ring a5 is sleeved at the end of the main heating network steam pipeline 1, and a connecting ring b9 is sleeved at the end of the connecting heating network steam pipeline 2. The connecting rings a5 and b9 are fitted together. A bearing ring 4 is installed on the outside of the main heating network steam pipeline 1, behind the connecting ring a5. A rotating groove is formed on the upper end of the side wall of the bearing ring 4, and a hinge rod 11 is fitted into the rotating groove. A hinge plate 10 is fitted on the outer wall of the hinge rod 11. A limiting clamp 3 is fitted at the top of the hinge plate 10, and the limiting clamp 3 is sleeved at the connection between the connecting ring a5 and the connecting ring b9. Fastening plates 13 are installed at both ends of the opening of the limiting clamp 3. Fastening holes 14 are formed through the side walls of the fastening plates 13, and bolt bodies 12 are fitted inside the fastening holes 14. The exterior of the main heating network steam pipeline 1 and the connecting heating network steam pipeline 2 are coated with an anti-corrosion coating.

[0027] In this technical solution, the main steam pipeline 1 and the connecting steam pipeline 2 of the heating network are arranged opposite each other for docking. Connecting ring a5 is fixed to the end of the main steam pipeline 1, and connecting ring b9 is fixed to the end of the connecting steam pipeline 2. When the main steam pipeline 1 and the connecting steam pipeline 2 are docked, connecting ring a5 and connecting ring b9 are fitted together. A fixing ring 14 is installed on the outside of the main steam pipeline 1, behind connecting ring a5. The distance between the fixing ring 14 and connecting ring a5 is greater than the length of the hinge plate 10. Therefore, after connecting ring a5 and connecting ring b9 are docked, the hinge plate 10 can be rotated 90° by the rotation of the hinge rod 11 within the rotating groove, and the limiting clamp 3 is fitted onto the docking point of connecting ring a5 and connecting ring b9. The limiting clamp 3 is made of elastic material. After the limiting clamp 3 is fitted onto the docking point of connecting ring a5 and connecting ring b9, the connection is secured by a fastening plate. 13 are relatively fitted together, the limiting clamp 3 is tightened, and the two fastening plates 13 are fixed by the bolt body 12. The anti-corrosion coating on the outside of the main steam pipeline 1 and the connecting steam pipeline 2 of the heating network is divided into the following steps: Step 1: Surface treatment, the surface of the long-distance heating network steam pipeline is pretreated by rust removal, oil removal, dust removal, etc., to ensure that the surface is clean, dry and has appropriate roughness; Step 2: Primer coating, epoxy zinc-rich primer or inorganic zinc-rich primer is evenly coated on the pipeline surface to form a dense anti-rust layer; Step 3: Intermediate paint coating, epoxy micaceous iron oxide intermediate paint is evenly coated on the primer surface to increase the coating thickness and improve the anti-corrosion performance; Step 4: Topcoat coating, high temperature resistant and weather resistant polyurethane topcoat or fluorocarbon topcoat is evenly coated on the intermediate paint surface to form a protective film and improve the corrosion resistance, wear resistance and decoration of the coating.

[0028] In some technical solutions, a circular groove 123 is provided at the bottom end of the bolt body 12, and a bolt rod 121 is installed inside the circular groove 123. After the bolt rod 121 passes through the fastening hole 14, a nut 128 is screwed on. A fastening groove 15 is provided at the end of the bolt rod 121, and a fastening bolt 16 is assembled inside the fastening groove 15.

[0029] In this technical solution, after the bolt shank 121 in the bolt body 12 passes through the fastening hole 14, a nut 128 is screwed into its exterior. The two fastening plates 13 are fastened by the threaded engagement between the nut 128 and the bolt shank 121. After the nut 128 is screwed into the bolt shank 121, the fastening bolt 16 is screwed into the fastening groove 15 to limit the nut 128. The fastening bolt 16 is a collision bolt.

[0030] In some technical solutions, the fastening groove 15 has four slots 18 inside, and the inner wall of the fastening groove 15 has a reverse internal thread 17 that matches the external thread of the fastening bolt 16.

[0031] In this technical solution, after the fastening bolt 16 and the reverse internal thread 17 are screwed into the fastening groove 15, the bolt rod 121, which is divided into four parts by the slot 18, can be opened up to prevent the nut 128 from falling off.

[0032] In some technical solutions, a retaining ring 126 is fitted on the outside of the bolt rod 121, and an annular pressure plate 124, a spring 127 and an annular rubber sheet 122 are fitted on the circumferential surface of the bolt rod 121.

[0033] In this technical solution, the annular pressure plate 124 is located above the fixed ring 126, the spring 127 is located above the annular pressure plate 124, and the annular rubber sheet 122 is located below the fixed ring 126.

[0034] In some technical solutions, an extrusion sheet 55 is fixedly installed at the lower edge of the annular pressure plate 54.

[0035] In this technical solution, during the tightening process, the annular rubber sheet 122 slides upward due to the action of the bolt rod and nut. With further tightening, the annular rubber sheet 122 contacts the fixing ring 126. The annular rubber sheet 122 deforms due to the action of the fixing ring 126, sealing the tightening hole. The spring 127 is located on the upper side of the annular pressure plate 124, causing the annular pressure plate 124 to be pressed downward due to the action of the spring 127. The compression block is pressed downward due to the action of the annular pressure plate 124, which further compresses the edge of the annular rubber sheet 122, thereby improving the sealing effect.

[0036] In some technical solutions, the inner wall of the limiting hoop 3 is fitted with a rubber pad layer a19, and the inner wall of the connecting ring a5 and the connecting ring b9 is fitted with a rubber pad layer b7.

[0037] In this technical solution, the sealing performance of the inner wall of the limiting hoop 3 can be improved by the rubber pad a19, and the sealing performance of the connecting ring a5 and the connecting ring b9 can be improved by the rubber pad b7.

[0038] In some technical solutions, slots 6 are provided around the side wall of connecting ring a5, and insert rods 8 are installed around the side wall of connecting ring b9, with the insert rods 8 inserted into the slots 6.

[0039] In this technical solution, the insertion rod 8 and the slot 6 are interference fit, so that the insertion rod 8 is inserted into the slot 6 to mate the connecting ring a5 and the connecting ring b6.

[0040] Working principle: In use, first, connect the connecting ring a5 and connecting ring b9 together, and insert the plug rod 8 into the slot 6 to connect the main steam pipeline 1 and the connecting steam pipeline 2 of the heating network. Then, rotate the limiting clamp 3 to open it outward and fit it onto the joint of the connecting ring a5 and connecting ring b9. Then, insert the bolt rod 121 in the bolt body 12 into the fastening hole 14 and screw the nut 128 into the bolt rod 121. As the nut 128 is further screwed in, the two fastening plates 13 move relative to each other, tightening the limiting clamp 9. Then, screw the fastening bolt 16 into the fastening groove 15 to fix the nut 128.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A long heat distribution network steam pipeline having an anticorrosion structure, comprising a heat network steam main pipeline (1) and a heat network steam connection pipeline (2), characterized in that, The end of the heat network steam main pipeline (1) is sleeved with a connecting ring a (5), and the end of the heat network steam connecting pipeline (2) is sleeved with a connecting ring b (9); The connecting ring a (5) and the connecting ring b (9) are arranged in abutment, and the outside of the heat network steam main pipeline (1) is mounted with a bearing ring (4) at the rear side of the connecting ring a (5); A rotating groove is formed in the side wall of the bearing ring (4), the rotating groove is provided with a hinged rod (11), and the outer wall of the hinged rod (11) is provided with a hinged plate (10); The top end of the hinged plate (10) is provided with a limiting hoop (3), and the limiting hoop (3) is sleeved at the connection between the connecting ring a (5) and the connecting ring b (9); Fastening plates (13) are mounted at both ends of the opening of the limiting hoop (3), fastening holes (14) are formed in the side wall of the fastening plate (13), and bolt bodies (12) are arranged in the fastening holes (14); The heat network steam main pipeline (1) and the heat network steam connecting pipeline (2) are coated with an anti-corrosion coating.

2. A long heating steam pipe with anti-corrosion structure according to claim 1, characterized in that: A circular groove (123) is formed in the bottom end of the bolt body (12), a bolt rod (121) is mounted in the circular groove (123), a nut (128) is screwed on the bolt rod (121) after passing through the fastening hole (14), a fastening groove (15) is formed in the end of the bolt rod (121), and a fastening bolt (16) is arranged in the fastening groove (15).

3. A long heating steam pipe with anti-corrosion structure according to claim 2, characterized in that: Four grooves (18) are formed in the fastening groove (15), and reverse internal threads (17) matched with external threads of the fastening bolt (16) are formed in the inner wall of the fastening groove (15).

4. The long heating network steam pipeline with anti-corrosion structure according to claim 2, characterized in that: A fixing ring (126) is sleeved on the outside of the bolt rod (121), and an annular pressing piece (124), a spring (127) and an annular rubber sheet (122) are sleeved on the circumferential surface of the bolt rod (121).

5. A long heating steam pipe with anti-corrosion structure according to claim 4, characterized in that: An extrusion piece (125) is fixedly mounted at the lower end edge of the annular pressing piece (124).

6. A long heating steam pipe with anti-corrosion structure according to claim 1, characterized in that: A rubber pad layer a (19) is arranged in the limiting hoop (3), and a rubber pad layer b (7) is arranged in the inner wall of the connecting ring a (5) and the connecting ring b (9).

7. A long heating steam pipe with anti-corrosion structure according to claim 1, characterized in that: Insertion grooves (6) are formed around the side wall of the connecting ring a (5), and insertion rods (8) are mounted around the side wall of the connecting ring b (9), and the insertion rods (8) are inserted into the insertion grooves (6).

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