High-safety stainless steel welded pipe for fluid transportation

Abstract

The utility model belongs to the technical field of stainless steel welded pipe application, and particularly discloses a high-safety stainless steel welded pipe for fluid transportation, which comprises a roadbed surface embedded pipe, a hollow flange plate, a plurality of screw grooves, a fluid transportation stainless steel welded pipe, a fixed flange plate, a locking fixed plate, a plurality of bolt screw holes, bolts and the like. The high-safety stainless steel welded pipe for fluid conveying has the advantages that the roadbed surface embedded pipe and the fluid conveying stainless steel welded pipe form a double-layer structure, the pressure resistance of the fluid conveying stainless steel welded pipe is improved, the bearing performance is high, and then safe fluid conveying is achieved; and 2, the whole body adopts a combined design, so that the construction, the inspection and the maintenance are convenient, meanwhile, the service life of the fluid conveying stainless steel welded pipe is effectively prolonged, frequent hidden danger troubleshooting is not needed, and the use cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of stainless steel welded pipe applications, and particularly relates to a high-safety stainless steel welded pipe for fluid transportation. The utility model is used for fluid transportation, has high load-bearing capacity, and realizes safe fluid transportation. Background Art

[0002] Stainless steel welded pipe, referred to as welded pipe, is a steel pipe made by welding steel or steel strip after being curled and formed by a unit and a mold. The production process of welded steel pipe is simple and the production efficiency is high.

[0003] Applications: ① GB / T12770-2002 (Welded stainless steel pipe for mechanical structures). Mainly used for machinery, automobiles, bicycles, furniture, hotel and restaurant decoration, and other mechanical components and structural parts. Representative materials include 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, and 0Cr18Ni11Nb.

[0004] Application: ② GB / T12771-2008 (welded stainless steel pipe for fluid transportation). Primarily used for conveying low-pressure corrosive media. Representative materials include 06Cr19Ni10, 022Cr19Ni10, 06Cr19Ni110Ti, 00Cr17, 0Cr18Ni11Nb, and 06Cr17Ni12Mo2.

[0005] The current stainless steel welded pipe structure only has the function of fluid transportation, and its pressure resistance (bearing capacity) is poor. When paved and used on the road, it is very easy to be deformed and broken, which greatly affects the normal transportation of the fluid and also poses a major safety hazard (when transporting dangerous liquids). This requires improvement.

[0006] Therefore, based on the above problems, the present invention provides a high-safety stainless steel welded pipe for fluid transportation. Utility Model Content

[0007] Purpose of the utility model: The purpose of the utility model is to provide a high-safety stainless steel welded pipe for fluid transportation, so as to solve the problems existing in the use of the fluid transportation stainless steel welded pipe structure in the background technology.

[0008] Technical solution: The high-safety stainless steel welded pipe for fluid transportation of the utility model includes a pre-buried pipe on the roadbed surface, and a hollow flange plate is provided on any end face of the pre-buried pipe on the roadbed surface, and a plurality of screw grooves are provided on one side of the hollow flange plate. A fluid transportation stainless steel welded pipe with both ends protruding from the end faces of the pre-buried pipe on the roadbed surface is provided in the pre-buried pipe on the roadbed surface, and a fixed flange plate is provided on one end face of the fluid transportation stainless steel welded pipe. A locking fixing plate is provided on the outer wall of one end of the fluid transportation stainless steel welded pipe and on one side of the fixed flange plate. A plurality of bolt holes are provided in the outer layer of the locking fixing plate, and the hollow flange plate and the locking fixing plate are fixed by bolts through the bolt holes and screw grooves.

[0009] In the technical solution, the high-safety stainless steel welded pipe for fluid transportation further includes an external threaded layer arranged on the outer wall of one end of the fluid transportation stainless steel welded pipe and located on one side of the fixed flange plate.

[0010] In this technical solution, the high-safety stainless steel welded pipe for fluid transportation also includes a hollow externally threaded sleeve arranged in the end face of the other end of the fluid transportation stainless steel welded pipe, and a detachable flange plate arranged on one side of the hollow externally threaded sleeve.

[0011] In the technical solution of the present invention, the outer wall of the fluid conveying stainless steel welded pipe does not contact the inner wall of the pre-buried pipe on the roadbed surface after being fixed.

[0012] Compared with the existing technology, the beneficial effects of the high-safety stainless steel welded pipe for fluid transportation of the utility model are: 1. The pre-buried pipe on the roadbed surface and the fluid transportation stainless steel welded pipe form a double-layer structure, which improves the pressure resistance and load-bearing capacity of the fluid transportation stainless steel welded pipe, thereby realizing safe fluid transportation; 2. The overall modular design is convenient for construction and maintenance, and also effectively extends the service life of the fluid transportation stainless steel welded pipe, eliminates the need for regular hidden danger inspections, and reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the main structure of the high-safety stainless steel welded pipe for fluid transportation of the utility model before assembly;

[0015] Figure 2 This is a schematic diagram of the main structure of the high-safety stainless steel welded pipe for fluid transportation after assembly according to the utility model;

[0016] Among them, the serial numbers in the figure are as follows: 100-embedded pipe on the roadbed surface, 101-hollow flange plate, 102-screw groove, 103-fluid conveying stainless steel welded pipe, 104-locking fixing plate, 105-bolt screw hole, 106-bolt, 107-external threaded layer, 108-fixed flange plate, 109-detachable flange plate, 110-hollow external threaded sleeve. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle", "inside", "top", "bottom end", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, they can mean fixed connection, detachable connection, or integral connection; they can mean mechanical connection or electrical connection; they can mean direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Example 1

[0020] like Figure 1 and Figure 2 The high-safety stainless steel welded pipe for fluid transportation shown includes a pre-buried pipe 100 on the roadbed surface.

[0021] A hollow flange plate 101 is provided on any end face of the roadbed embedded pipe 100.

[0022] One side of the hollow flange plate 101 is provided with a plurality of screw grooves 102.

[0023] The roadbed pre-buried pipe 100 is provided with a fluid conveying stainless steel welded pipe 103 with both ends protruding from the end surfaces of the roadbed pre-buried pipe 100.

[0024] One end of the fluid conveying stainless steel welded pipe 103 is provided with a fixed flange plate 108.

[0025] The outer wall of one end of the fluid conveying stainless steel welded pipe 103 and one side of the fixed flange plate 108 is set as a locking fixed plate 104.

[0026] The outer layer of the locking plate 104 is provided with a plurality of bolt holes 105.

[0027] The hollow flange plate 101 and the locking fixing plate 104 are fixed together by bolts 106 through the bolt holes 105 and the screw grooves 102;

[0028] Among them, the diameters of the hollow flange plate 101 and the locking and fixing plate 104 are the same, and the locking and fixing plate 104 is fixedly arranged on the outer wall of the fluid conveying stainless steel welded pipe 103. After the hollow flange plate 101 and the locking and fixing plate 104 are fixedly installed, it is ensured that the roadbed surface embedded pipe 100 and the fluid conveying stainless steel welded pipe 103 do not contact each other; the fixed flange plate 108 is fixedly installed on one end face of the fluid conveying stainless steel welded pipe 103.

[0029] The working principle is as follows: (1) first, the roadbed surface embedded pipe 100 is embedded in the road surface, and both ends of the roadbed surface embedded pipe 100 are ensured to protrude from the road surface;

[0030] (2) Then, insert the fluid conveying stainless steel welded pipe 103 into the roadbed surface pre-buried pipe 100 from one end of the hollow flange plate 101, and push it horizontally until the fluid conveying stainless steel welded pipe 103 protrudes from the roadbed surface pre-buried pipe 100;

[0031] (3) Finally, the hollow flange plate 101 and the locking fixing plate 104 are locked and fixed by means of the bolt holes 105 and the screw grooves 102 through the bolts 106. The fixing flange plate 108 is used to connect the liquid outlet of the transition fluid pipe.

[0032] Example 2

[0033] On the basis of the first embodiment, the high-safety stainless steel welded pipe for fluid transportation further includes an external threaded layer 107 provided on the outer wall of one end of the fluid transportation stainless steel welded pipe 103 and located on one side of the fixed flange plate 108;

[0034] Among them, the locking fixing plate 104 is rotationally assembled with the external thread layer 107, and the locking fixing plate 104 slides horizontally on the surface of the fluid conveying stainless steel welded pipe 103 through the external thread layer 107. The connection surface between the locking fixing plate 104 and the external thread layer 107 is set as an internal thread structure.

[0035] The purpose of the above is to facilitate the adjustment of the horizontal position of the fluid conveying stainless steel welded pipe 103 during construction and assembly by locking the relative positions of the fixing plate 104 and the external threaded layer 107, thereby improving its construction efficiency.

[0036] Example 3

[0037] The high-safety stainless steel welded pipe for fluid transportation based on the first or second embodiment further includes a hollow externally threaded sleeve 110 disposed in the other end surface of the fluid transportation stainless steel welded pipe 103, and a detachable flange plate 109 disposed on one side of the hollow externally threaded sleeve 110;

[0038] The connection surface between the fluid conveying stainless steel welded pipe 103 and the hollow external threaded sleeve 110 is configured as a threaded structure.

[0039] The purpose of the above is to facilitate the horizontal construction and assembly of the fluid conveying stainless steel welded pipe 103 and the roadbed pre-buried pipe 100, and to facilitate disassembly and use.

[0040] In addition, it is preferred that the outer wall of the fluid conveying stainless steel welded pipe 103 does not contact the inner wall of the roadbed surface embedded pipe 100 after being fixed. If the roadbed surface embedded pipe 100 does not abut the fluid conveying stainless steel welded pipe 103 after deformation, a certain deformation gap space is reserved to ensure the safe liquid material transportation of the fluid conveying stainless steel welded pipe 103.

[0041] It should be noted that, in this document, terms such as "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A high-safety stainless steel welded pipe for fluid transportation, comprising a pre-buried pipe (100) on a roadbed surface, characterized in that: Any end face of the roadbed surface embedded pipe (100) is provided with a hollow flange plate (101). One side of the hollow flange plate (101) is provided with a plurality of screw grooves (102). The roadbed surface pre-buried pipe (100) is provided with a fluid conveying stainless steel welded pipe (103) with both ends protruding from the end surfaces of the roadbed surface pre-buried pipe (100). One end surface of the fluid conveying stainless steel welded pipe (103) is provided with a fixed flange plate (108). The outer wall of one end of the fluid conveying stainless steel welded pipe (103) and located on one side of the fixed flange plate (108) is provided as a locking fixed plate (104). The outer layer of the locking and fixing plate (104) is provided with a plurality of bolt holes (105). The hollow flange plate (101) and the locking fixing plate (104) are fixed together by bolts (106) through bolt holes (105) and screw grooves (102).

2. The high-safety stainless steel welded pipe for fluid transportation according to claim 1, characterized in that: The high-safety stainless steel welded pipe for fluid transportation also includes an external threaded layer (107) arranged on the outer wall of one end of the fluid transportation stainless steel welded pipe (103) and located on one side of the fixed flange plate (108).

3. The high-safety stainless steel welded pipe for fluid transportation according to claim 1 or 2, characterized in that: The high-safety stainless steel welded pipe for fluid transportation also includes a hollow externally threaded sleeve (110) arranged in the end surface of the other end of the fluid transportation stainless steel welded pipe (103), and a detachable flange plate (109) arranged on one side of the hollow externally threaded sleeve (110).

4. The high-safety stainless steel welded pipe for fluid transportation according to claim 1, characterized in that: After being fixed, the outer wall of the fluid conveying stainless steel welded pipe (103) does not contact the inner wall of the roadbed surface pre-buried pipe (100).

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