CN212430058U

CN212430058U - Ring pressure type connecting thin-wall stainless steel pipe and stainless steel pipe combination

Info

Publication number: CN212430058U
Application number: CN202021015741.4U
Authority: CN
Inventors: 娄一鸣; 黄澍; 胡晓莲; 蓝九元; 余宏辉
Original assignee: JIANGXI FIRST CONSTRUCTION ENGINEERING CORP
Current assignee: JIANGXI FIRST CONSTRUCTION ENGINEERING CORP
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-01-29
Anticipated expiration: 2030-06-05

Abstract

The utility model provides a nonrust steel pipe of thin wall and nonrust steel pipe combination are connected to ring pressure formula, it includes the connecting pipe, and the connecting pipe is equipped with first body tip, and first body tip cup joints at tubular product one end outer wall, and just first body tip is connected with tubular product ring pressure. A first sealing structure is arranged at the end part of the first pipe body. The utility model discloses in, first seal structure includes that the ring presses first slot rolling and the second slot rolling that forms, sets up and forms the cavity between first body tip and the tubular product between first slot rolling and the second slot rolling, and the inside packing of cavity has insulating seal spare. The utility model discloses a nonrust steel pipe of thin wall and nonrust steel pipe combination are connected to ring pressure formula, and the first body tip of connecting pipe passes through the ring pressure and forms seal structure, has promoted the stability and the leakproofness of pipe connection department. The safety and the reliability of the thin-wall stainless steel pipe in ring pressure connection after the pipe is put into use are improved; the problem of repair is reduced, the maintenance cost is reduced, and the integral grade of the building is improved.

Description

Ring pressure type connecting thin-wall stainless steel pipe and stainless steel pipe combination

Technical Field

The utility model relates to a pipe connection technical field, in particular to ring pressure formula is connected nonrust steel pipe of thin wall and nonrust steel pipe combination.

Background

Along with the improvement of living standard of people, the requirements of people on energy conservation, environmental protection and improvement of living quality are higher and higher. Galvanized steel pipes used in water supply pipe systems of conventional construction engineering are being gradually replaced by plastic pipes and stainless steel pipes. Because the stainless steel pipeline has good corrosion resistance, good water supply quality, high pipeline strength and long service life of up to 70 years, the stainless steel pipeline is more economical and more environment-friendly than galvanized steel pipes, plastic pipes and the like, and is gradually widely applied.

At present, the problems of unstable pipeline joints and poor sealing performance of the pipeline joints are easy to occur in the construction process of thin-wall stainless steel pipes.

Therefore, it is necessary to provide a ring-pressing type thin-wall stainless steel pipe and a stainless steel pipe combination to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a nonrust steel pipe of thin wall is connected to ring pressure formula, its first body tip through the connecting pipe passes through the ring pressure and forms seal structure, has solved the unstable of thin wall stainless steel pipeline junction among the prior art, the poor problem of pipeline junction sealing performance.

In order to solve the technical problem, the utility model adopts the technical scheme that: a ring-pressing type thin-wall stainless steel pipe comprises a connecting pipe,

the connecting pipe is provided with a first pipe body end part which is sleeved on the outer wall of the pipe and is in annular pressure connection with the pipe, and a first sealing structure is arranged at the first pipe body end part;

the first sealing structure comprises a first rolling groove and a second rolling groove which are formed through ring pressing, a cavity is formed between the end part of a first pipe body arranged between the first rolling groove and the second rolling groove and the pipe, and an insulating sealing element is filled in the cavity.

In the utility model, the first pipe end part comprises

A first circular pipe section for conveying a fluid;

the first opening section is arranged at an opening at the end part of the first pipe body, the first opening section is in annular pressure connection with the pipe, and the first sealing structure is arranged at the first opening section; and

the first opening section is connected with the first circular tube section through a first transition section;

the diameters of the first opening section, the first transition section and the first circular pipe section are sequentially reduced, the diameter of the first opening section is larger than that of the pipe, the diameter of the first transition section is smaller than that of the pipe, the position of the pipe is limited by the first transition section, and the efficiency of annular pressing operation of the pipeline is improved.

In the utility model, the first opening section comprises a limit pipe and an extension pipe, the limit pipe is connected with the first transition section through the extension pipe,

the inner ring of the limiting pipe is connected with the outer ring of the insulating sealing element, the section diameter of the limiting pipe is larger than that of the extension pipe, and a limiting surface used for limiting the position of the insulating sealing element is arranged at the joint of the limiting pipe and the extension pipe. The position of insulating seal has been injectd to spacing face, has promoted pipe connection's stability.

The utility model discloses in, first seal structure still includes the third slot rolling, the third slot rolling sets up first slot rolling with between the second slot rolling, the inner wall extrusion of third slot rolling insulating seal has promoted first seal structure's compactness.

The utility model discloses in, the connecting pipe is the nonrust steel pipe of S316 thin wall, the diameter range of connecting pipe is between 15mm ~ 100mm, the pipe wall thickness of connecting pipe is between 0.6mm ~ 1.2 mm.

The utility model discloses in, insulating seal spare is high temperature resistant silica gel circle, and the practicality is strong, non-deformable.

The utility model also provides another ring-pressing type thin-wall stainless steel connecting pipe, which comprises a connecting pipe, wherein the connecting pipe is provided with a second pipe end part which is inserted in the pipe fitting, the second pipe end part is provided with a second sealing structure,

the second seal structure includes a fourth rolling groove and a fifth rolling groove formed by ring pressing.

The fifth rolling groove and the fourth rolling groove which are formed by annular pressing are formed in the end portion of the second pipe body, so that a constructor can be connected with the connecting pipe and the pipe fitting in an annular pressing mode conveniently, the stability of the pipeline structure is improved, and limitation of pipeline threaded connection to the size of threads is avoided.

The utility model also provides a ring-pressing type thin-wall stainless steel pipe combination, which comprises a plurality of connecting pipes, wherein part of the connecting pipes comprise the first pipe body end parts, and part of the connecting pipes comprise the second pipe body end parts;

the connecting pipe with the first pipe body end is connected with the connecting pipe with the second pipe body end to form the stainless steel pipe combination.

In the utility model, the distance between the first rolling groove and the second rolling groove is equal to the distance between the fifth rolling groove and the fourth rolling groove;

after the connection of the connecting pipe is completed, the end part of the first pipe body is connected with the end part of the second pipe body, the first rolling groove is connected with the fifth rolling groove, and the second rolling groove is connected with the fourth rolling groove. After the pipeline connection is finished, the joints are tightly attached, so that the attractiveness and the sealing performance of the pipeline joints are improved, and the building decoration grade is improved.

The utility model discloses in, adjacent two have distance between the connecting pipe of first body tip is greater than 1 cm.

The utility model discloses compare in prior art, its beneficial effect is: the utility model discloses a nonrust steel pipe of thin wall and nonrust steel pipe combination are connected to ring pressure formula, and the first body tip of connecting pipe passes through the ring pressure and forms seal structure, has promoted the stability and the leakproofness of pipe connection department.

The utility model discloses an among the nonrust steel pipe of thin wall is connected to ring crush formula, the first opening section diameter of first body tip is greater than the diameter of tubular product, and the diameter of first changeover portion is less than the diameter of tubular product, and the position of tubular product has been injectd to first changeover portion, has promoted the stability that tubular product and first connecting pipe are connected, has avoided second connecting pipe and the easy gliding problem of second connecting pipe among the first connecting pipe ring crush process.

Furthermore, the section diameter of the limiting pipe of the first opening section is larger than that of the extension pipe, so that a limiting surface is formed at the joint of the limiting pipe and the first connecting pipe, and the position of the insulating sealing element can be limited; the operating efficiency of the ring pressing process of the steel pipe is improved, and the insulating sealing element is prevented from sliding and falling in the first connecting pipe.

In addition, the ring-pressing type thin-wall stainless steel pipe improves the safety and reliability of the connecting pipe after being put into use; the problem of repair is reduced, the maintenance cost is reduced, and the integral grade of the building is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.

Fig. 1 is a schematic structural view of the first pipe end of the ring-pressing thin-walled stainless steel pipe of the present invention.

Fig. 2 is a schematic structural diagram of the ring-pressing type thin-walled stainless steel tube according to the present invention before the ring-pressing of the first tube end.

Fig. 3 is a schematic structural view of a second embodiment of the ring-pressing type connecting end of the first pipe body of the thin-walled stainless steel pipe of the present invention.

Fig. 4 is a schematic structural view of the second pipe end of the ring-pressing thin-walled stainless steel pipe of the present invention.

Fig. 5 is the overall structure schematic diagram of the ring-pressing type thin-wall stainless steel tube combination of the present invention.

Fig. 6 is a schematic diagram of the ring-pressing front structure of the ring-pressing type thin-wall stainless steel tube combination of the present invention.

Fig. 7 is a schematic view of the overall structure of the second embodiment of the ring-crush connecting thin-walled stainless steel pipe assembly of the present invention.

Fig. 8 is another schematic structural diagram of the second embodiment of the ring-crush connecting thin-walled stainless steel tube assembly of the present invention.

Fig. 9 is a length diagram of the second connecting pipe of the ring-pressing type thin-wall stainless steel pipe assembly of the present invention.

Reference numerals:

first embodiment of the connecting tube: the first pipe end 11, the first circular pipe section 111, the first opening section 112, the limiting pipe 1121, the extension pipe 1122, the first transition section 113, the first sealing structure 114, the first rolling groove 1141, the second rolling groove 1142, the chamber 1143, and the insulating sealing element 115.

Second embodiment of the first tubular body end: first tube end 21, first seal structure 214, first rolling groove 2141, second rolling groove 2142, cavity 2143, third rolling groove 2144, insulating seal 215,

Reference numbers for another connecting tube: the second tubular body end portion 12, the second seal structure 121, the fifth rolling groove 1211, and the fourth rolling groove 1212;

combining stainless steel pipes: first connecting tube 31, first pipe body end 311, first circular tube section 3111, first opening section 3112, limiting tube 31121, extension tube 31122, first transition section 3113, first sealing structure 3114, first rolling groove 31141, second rolling groove 31142, cavity 31143, insulating sealing member 3115, second connecting tube 32, second pipe body end 321, second sealing structure 3211, fifth rolling groove 32111, fourth rolling groove 32112.

Second embodiment of stainless steel tube combination: first connection tube 41, first tube end 411, first seal structure 4114, first groove 41141, second groove 41142, chamber 41143, third groove 41144, insulation seal 4115.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the drawings, elements having similar structures are denoted by the same reference numerals.

The terms "first," "second," and the like in the terms of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor should they be construed as limiting in any way.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a first pipe end portion of a ring-pressing type thin-wall stainless steel pipe according to the present invention.

Following do the utility model provides a pair of thin wall nonrust steel pipe is connected to ring pressure formula that can solve above technical problem, it includes the connecting pipe, and the connecting pipe is equipped with first body tip 11, and first body tip 11 cup joints at tubular product one end outer wall, and first body tip 11 is connected with tubular product ring pressure. The first tube end 11 is provided with a first seal 114.

In this embodiment, the first sealing structure 114 includes a first rolling groove 1141 and a second rolling groove 1142 formed by ring rolling, a cavity 1143 is formed between the first pipe end 11 and the pipe disposed between the first rolling groove 1141 and the second rolling groove 1142, and the interior of the cavity 1143 is filled with the insulating sealing element 115.

Referring to fig. 2, fig. 2 is a schematic structural diagram of the first tube body end before ring pressing of the ring-pressing type thin-walled stainless steel tube according to the present invention. The structure of the first pipe end 11 in this embodiment will be described in detail:

the first body end 11 in this embodiment includes a first circular tube section 111, a first open section 112, and a first transition section 113. The first circular pipe section 111 is used for conveying fluid; the first opening section 112 is arranged at the opening of the first pipe end 11, the first opening section 112 is in annular pressure connection with the pipe, and the first sealing structure 114 is arranged at the first opening section 112; the first transition section 113 is disposed in the middle of the first pipe end 11, and the first opening section 112 is connected to the first circular pipe section 111 through the first transition section 113.

Wherein, the diameter of first opening section 112, first changeover portion 113 and first circle pipeline section 111 reduces in proper order, and first opening section 112 diameter is greater than the tubular product diameter, and the diameter of first changeover portion 113 is less than the tubular product diameter, and first changeover portion 113 has injectd the position of tubular product, has promoted the stability that tubular product and connecting pipe are connected, has avoided tubular product and the easy gliding problem of tubular product of connecting pipe ring crush in-process.

Further, in the present embodiment, the first opening section 112 includes a limiting tube 1121 and an extension tube 1122, and the limiting tube 1121 is connected to the first transition section 113 through the extension tube 1122.

In the present embodiment, the inner ring of the limiting tube 1121 is connected to the outer ring of the insulating sealing element 115, and the cross-sectional diameter of the limiting tube 1121 is greater than the cross-sectional diameter of the extension tube 1122, so that the connection portion of the limiting tube 1121 and the connection tube forms a limiting surface, and the limiting surface is used for limiting the position of the insulating sealing element 115. The position of the insulating sealing element 115 can be limited by the difference of the section sizes of the joints of the limiting pipes 1121 and the extension pipes 1122, the operation efficiency of the steel pipe ring pressing process is improved, and the insulating sealing element 115 is prevented from sliding and falling in the connecting pipe.

In this embodiment, the connecting pipe is an S316 thin-walled stainless steel pipe, the diameter range of the connecting pipe is 15mm to 100mm, and the wall thickness of the connecting pipe is 0.6mm to 1.2 mm.

In this embodiment, the insulating sealing member 115 is a high temperature resistant silicone ring.

Referring to fig. 3, fig. 3 is a schematic structural view of a second embodiment of the ring-pressing type connecting thin-walled stainless steel tube of the present invention. The second embodiment of the ring-pressing connection thin-wall stainless steel pipe of the utility model is provided as follows;

the connecting pipe of this embodiment, the connecting pipe are equipped with first body tip 21, and first body tip 21 cup joints at tubular product one end outer wall, and first body tip 21 is connected with tubular product ring crush. The first tube end 21 is provided with a first seal 214.

In this embodiment, the first sealing structure 214 includes a first rolling groove 2141, a second rolling groove 2142 and a third rolling groove 2144 formed by ring pressing, a cavity 2143 is formed between the first pipe end 21 and the pipe disposed between the first rolling groove 2141 and the second rolling groove 2142, and the interior of the cavity 2143 is filled with the insulating sealing element 215; the third rolling groove 2144 is disposed between the first rolling groove 2141 and the second rolling groove 2142, and the inner wall of the third rolling groove 2144 presses the insulating seal 215, which improves the tightness of the first sealing structure 214.

Referring to fig. 4, fig. 4 is a schematic structural view of a second pipe end of the ring-pressing thin-walled stainless steel pipe of the present invention. As follows the utility model provides a thin-walled stainless steel pipe is connected to another kind of ring pressure formula that can solve above technical problem, it includes the connecting pipe, and the connecting pipe is equipped with second body end 12, and second body end 12 is pegged graft in the pipe fitting, and second body end 12 is equipped with second seal structure 121, and second seal structure 121 includes fifth rolling groove 1211 and fourth rolling groove 1212 that form through the ring pressure.

The connecting pipe in this embodiment is provided with the fifth rolling groove 1211 and the fourth rolling groove 1212 that are formed by ring crush through the second pipe end 12, so that the constructor can connect the connecting pipe with the pipe fitting by ring crush, and the stability of the pipe structure is improved.

With reference to fig. 5 and fig. 6, fig. 5 is a schematic diagram of the overall structure of the ring-pressing type connection thin-walled stainless steel tube assembly, and fig. 6 is a schematic diagram of the ring-pressing type connection thin-walled stainless steel tube assembly.

Following do the utility model provides a pair of thin-walled stainless steel tube combination is connected to ring pressure formula that can solve above technical problem, it includes a plurality of connecting pipes, including the first connecting pipe 31 that has first body tip 311 among a plurality of connecting pipes to and the second connecting pipe 32 that has second body tip 321. The first connection pipe 31 is connected with the second connection pipe 32 to form a stainless steel pipe combination.

In this embodiment, the first connecting pipe 31 has a first pipe end 311, the first pipe end 311 is sleeved on an outer wall of one end of the second connecting pipe 32, and the first pipe end 311 is connected to the second connecting pipe 32 in an annular pressing manner. The first tube end 311 is provided with a first seal 3114.

In this embodiment, the first sealing structure 3114 includes a first rolling groove 31141 and a second rolling groove 31142 formed by ring pressing, a cavity 31143 is formed between the first pipe body end 311 and the second connecting pipe 32, which are disposed between the first rolling groove 31141 and the second rolling groove 31142, and the cavity 31143 is filled with an insulating sealing material 3115.

The first body end 311 in this embodiment includes a first tubular segment 3111, a first open segment 3112, and a first transition segment 3113. A first pipe segment 3111 for conveying fluid; the first opening section 3112 is disposed at an opening of the first pipe body end 311, the first opening section 3112 is press-fitted to the second connection pipe 32, and the first sealing structure 3114 is disposed at the first opening section 3112; first transition 3113 is disposed in the middle of first body end 311, and first opening section 3112 is connected to first pipe section 3111 through first transition 3113.

Wherein, first opening section 3112, first changeover portion 3113 and first pipe section 3111's diameter reduces in proper order, first opening section 3112 diameter is greater than second connecting pipe 32 diameter, first changeover portion 3113's diameter is less than second connecting pipe 32 diameter, first changeover portion 3113 has injectd the position of second connecting pipe 32, the stability that second connecting pipe 32 is connected with first connecting pipe 31 has been promoted, the problem of second connecting pipe 32 and the easy slip of first connecting pipe 31 ring pressure in-process second connecting pipe 32 has been avoided.

Further, in this embodiment, the first opening section 3112 includes a limiting tube 31121 and an extending tube 31122, and the limiting tube 31121 is connected to the first transition section 3113 through the extending tube 31122.

In this embodiment, the inner ring of the limiting tube 31121 is connected to the outer ring of the insulating sealing member 3115, and the cross-sectional diameter of the limiting tube 31121 is larger than that of the extension tube 31122, so that the connection between the limiting tube 31121 and the first connection tube 31 forms a limiting surface for limiting the position of the insulating sealing member 3115. Through spacing pipe 31121 and extension pipe 31122 junction cross-sectional dimension difference, can inject the position of insulating seal 3115, promoted the operating efficiency of steel pipe ring pressure technology, avoided insulating seal 3115 to slide in first connecting pipe 31 and drop.

In this embodiment, the first connection pipe 31 is an S316 thin-walled stainless steel pipe, the diameter range of the first connection pipe 31 is between 15mm and 100mm, and the thickness of the pipe wall of the first connection pipe 31 is between 0.6mm and 1.2 mm.

In this embodiment, the insulating sealing member 3115 is a high temperature resistant silicone ring.

The second connecting pipe 32 in this embodiment has a second pipe end 321 inserted into the first pipe end 311, and the second pipe end 321 has a second sealing structure 3211,

the second seal structure 3211 includes a fifth rolling groove 32111 and a fourth rolling groove 32112 formed by ring pressing.

In the connecting pipe in this embodiment, the fifth rolling groove 32111 and the fourth rolling groove 32112 formed by annular pressing are formed in the end 321 of the second pipe body, so that the constructor can annularly press and connect the first connecting pipe 31 and the second connecting pipe 32, and the efficiency of the pipe connection operation is improved.

In this embodiment, a distance between the first rolling groove 31141 and the second rolling groove 31142 is equal to a distance between the fifth rolling groove 32111 and the fourth rolling groove 32112; after the connection pipe assembly is completed, the first pipe body end 311 is connected to the second pipe body end 321, the first rolling groove 31141 is connected to the fifth rolling groove 32111, and the second rolling groove 31142 is connected to the fourth rolling groove 32112.

In this embodiment, the second connecting pipe 32 has second pipe ends 321 at two ends, one end of the second connecting pipe 32 is connected to the first connecting pipe 31 having the first pipe end 311, and the other end of the second connecting pipe 32 is connected to the third connecting pipe having the first pipe end 311 in an annular pressing manner. The distance between the first connection pipe 31 and the second connection pipe 32 is greater than 1 cm.

Referring to fig. 7, fig. 7 is a schematic view of the overall structure of a second embodiment of the ring-pressing type thin-walled stainless steel tube assembly according to the present invention. This embodiment provides the utility model discloses a ring crush formula is connected the second kind embodiment of thin wall stainless steel pipe combination: the stainless steel tube assembly includes a plurality of connection tubes including a first connection tube 41 having a first tube end 411 and a second connection tube 42 having a second tube end 421. The first connection pipe 41 is connected with the second connection pipe 42 to form a stainless steel pipe combination.

In this embodiment, the first connecting pipe 41 is provided with a first pipe end 411, the first pipe end 411 is sleeved on an outer wall of one end of the second connecting pipe 42, and the first pipe end 411 is annularly pressed and connected with the second connecting pipe 42. A first sealing structure 4114 is disposed on the first tube end 411.

In this embodiment, the first sealing structure 4114 includes a first rolling groove 41141, a second rolling groove 41142, and a third rolling groove 41144, which are formed by ring pressing. A chamber 41143 is formed between the first pipe end 411 and the second connecting pipe 42, which are disposed between the first rolling groove 41141 and the second rolling groove 41142, and the inside of the chamber 41143 is filled with an insulating seal 4115. The third rolling groove 41144 is disposed between the first rolling groove 41141 and the second rolling groove 41142, and an inner wall of the third rolling groove 41144 presses the insulating seal 4115, thereby improving the tightness of the first seal structure.

Further, as shown in fig. 8, the stainless steel combination may be further provided as: the first body tip of first connecting pipe is provided with the first seal structure of multiunit, forms the first seal structure of multiunit through the ring crush, has promoted stainless steel built-up connection's leakproofness, has promoted pipeline overall structure's stability.

Combine fig. 6 and fig. 7, right the utility model discloses the construction flow of the stainless steel pipe combination of thin wall is connected to ring pressure formula explains:

firstly, before the pipeline is installed, construction preparation is needed.

Firstly, training constructors in the aspect of thin-wall stainless steel water supply pipe compression ring connection construction technology is conducted before construction, and the application requirements of special tools and machines are mastered.

Secondly, the construction machines, materials, constructors, water for field construction and electricity utilization are confirmed to be in place. The specification, the model and the quality of raw materials such as the approach pipe fitting and the like must meet the requirements of the design and the national current standard, have quality qualified certificates, report the verification to a supervision engineer, and can be used after being checked to be qualified; and confirming that the stacking position of the pipeline needs to be flat and is strictly forbidden to be in contact with carbon steel materials, so as to avoid electrochemical reaction.

Then, workers need to carefully check a civil engineering structure drawing, a building drawing and each professional installation drawing, check whether the space occupied by the pipeline arrangement is reasonable or not, check whether the coordinates and elevations of various pipelines have a cross phenomenon or not, and make reasonable construction schemes or measures in advance; the pipe hole or the mounting sleeve is reserved at the position where the pipeline penetrates through the wall, the hole size and the sleeve specification meet the requirements, the coordinate and the elevation are correct, and the template and sundries at the mounting position along the pipeline are cleaned up.

And secondly, prefabricating and processing the pipeline.

1. The lengths of the prefabricated and spliced pipelines are determined according to the specific conditions of the site construction operation; connecting the prefabricated and spliced pipe sections into a joint of a through long pipeline system, and keeping the joint at a position which is convenient for ring pressing operation as far as possible, wherein the main pipe is preferably no more than 10 meters; the branch pipe prefabrication length is that the vertical pipe is flapped to the tail end of the branch pipe without being influenced by the structure.

2. And determining the length of the pipe section according to the construction drawing and the length actually measured on site, and scribing and cutting the pipe. Because the ring-pressing connection mode is a one-step forming process, the pipe end and the pipe fitting can not be reused after being disassembled, and the length of the pipe section is determined to be accurate.

3. And (6) shaping the pipeline. And shaping the cut pipe, removing burrs left by cutting, and correcting the roundness of the pipe.

And thirdly, manufacturing and installing the pipeline bracket.

1. The pipeline support is installed to ensure the correct position and is embedded smoothly and firmly. The pipeline bracket comprises a fixed bracket and a sliding bracket.

2. The fixed bolster will closely contact with the pipeline, promotes the stability of pipeline laying structure.

3. The sliding support is flexible, a gap of 3-5mm is reserved between the sliding support and the two sides of the sliding groove, and the longitudinal gap and the longitudinal movement amount meet the design requirements.

4. The hanger boom of the non-heat-elongation pipeline should be installed vertically. The hanger boom with the thermally elongated pipe should be offset against the direction of thermal expansion.

5. The pipeline bracket and the hanging bracket fixed on the building structure can not influence the safety of the structure.

6. When the pipeline with the nominal diameter not more than 25mm is installed, a plastic pipe clamp can be adopted. When the pipe clamp or the bracket made of metal is adopted, a plastic tape or a soft object spacer such as rubber is added between the pipeline and the bracket.

7. The distance between adjacent fixed brackets is less than 15m, and the fixed brackets are arranged at the positions of reducing, branching and connecting ports and the two sides of the bearing wall and the floor slab.

And fourthly, installing a pipeline. And conveying the prefabricated pipe sections to the installation positions according to the numbers for installation.

The stainless steel pipe should install the sleeve pipe additional when passing wall, floor, and the clearance between sleeve pipe and the stainless steel pipe should not be less than 10mm to pack the insulator in the space, can adopt the asbestos cord, must not fill with the debris that contain iron fillings, rust.

The pipe sections are connected by ring pressing, and the operation steps of connecting the pipe sections by ring pressing are described as follows by taking the first connecting pipe 31 and the second connecting pipe 32 as an example:

1. and (5) breaking the pipe.

The pipe cutting tool (pipe cutter, professional cutter, abrasive wheel cutter, saw blade cutter, etc.) cuts the second connection pipe 32 by a desired length. The cut section should be perpendicular to the axis of the second connecting pipe 32 and the burr is removed.

The main points of pipe cutting quality control are as follows:

when cutting the pipe, the pipe cutting tool cuts the pipe perpendicular to the axial lead of the pipe. If the cut is inclined, it may result in an incorrect insertion amount of the second connection tube 32. Pipe cutting by a pipe cutting machine which cuts non-stainless steel materials is not needed; pipe cutters that cut through non-stainless steel materials tend to rust the pipe. The second connecting pipe 32 is not cut by the second connecting pipe 32, and the pipe opening is shrunk by cutting the second connecting pipe 32, so that the second connecting pipe 32 and the first connecting pipe 31 cannot be matched.

2. And (6) blanking.

The gauge is used to determine the length of the second connector tube 32 required.

Referring to fig. 9, a length L4 of the second connection pipe 32 is a sum of an insertion length L1 of the first connection pipe 31, an insertion length L2 of the third connection pipe 33, and a distance L3 between the first connection pipe 31 and the third connection pipe 33; wherein the distance L3 between the first connecting tube 31 and the third connecting tube 33 should be greater than or equal to 11 cm.

3. The second connection pipe 32 is preloaded with the insulating seal 3115 and inserted into the first connection pipe 31.

The insulating seal 3115 of the present embodiment is preferably a gasket. The insulating seal 3115 of this embodiment may be a plastic, rubber, or asbestos rubber sheet containing no chlorine ions.

The sealing ring is firstly sleeved on the second connecting pipe 32 (the sealing ring cannot be cut), then the second connecting pipe 32 is inserted into the first connecting pipe 31 and reaches the bottom, and finally the sealing ring is completely arranged in the gap between the second connecting pipe 32 and the first connecting pipe 31.

The cross-sectional diameter of the stopper tube 31121 of the first open section 3112 is greater than the cross-sectional diameter of the extension tube 31122, such that the junction of the stopper tube 31121 and the first connection tube 31 forms a stopper surface that can define the position of the insulating seal 3115; the operating efficiency of the steel pipe press ring process is promoted, and the insulating sealing member 3115 is prevented from sliding and falling in the first connecting pipe 31.

4. And (5) performing ring pressing connection.

After confirming the positions of the two connecting pipes, the end part of the first connecting pipe 31 is clamped by a special hydraulic clamp, and the ring pressure connection of the pipeline is completed by pressurizing by a hydraulic tool. And when the mark surface of the jaw of the ring pressing tool is consistent with the outer port surface of the first connecting pipe 31, ring pressing is carried out, and when the module is completely closed, the pressure is stabilized for more than or equal to 3 seconds, and then pressure is released.

And fifthly, testing the pressure of the pipeline.

Before the pipeline strength test, whether each interface and node of the system pipeline are perfect and whether the pipeline support is firm or not should be checked. During the test, the pipeline joints are exposed.

When the pipeline is tested, water is slowly injected into the pipeline, and air in the pipeline is removed completely. The pressure should be increased slowly during the pressure increase.

The hydrostatic test pressure of the indoor water supply pipeline must meet the design requirements. When the design is not noted, the test pressure of the water supply pipeline system is 1.5 times of the working pressure, but not less than 0.6MPa, the test pressure of the hot water pipeline system is the working pressure of the system vertex plus 0.1MPa, and the test pressure of the system vertex is not less than 0.3 MPa.

The detection method comprises the following steps: the water supply pipeline system is observed under the test pressure for 10min, the pressure drop is not more than 0.02MPa, and then the pressure is reduced to the working pressure for inspection, and the water supply pipeline system is not allowed to leak.

When the pipeline system is pressurized and water leakage is found or the pressure drops to exceed the specified value, the pipeline is checked, and after the reason of the water leakage is eliminated, the pressure is tested again according to the requirements until the requirements are met.

When the water pressure test and the water passing capability inspection are carried out in the environment with the temperature lower than 5 ℃, reliable anti-freezing measures are adopted, and after the test is finished, the stored water is completely discharged.

Sixthly, flushing the pipeline.

The pipeline must be washed and disinfected before being delivered for use, and the pipeline can be used according with the prescription of national drinking water standard after sampling inspection by relevant departments. The washing and the disinfection of the pipeline system are carried out after the pressure test of the pipeline is qualified.

Before flushing, instruments in the system are protected, all pipeline accessories such as a throttle valve and a check valve which obstruct flushing work are dismantled and stored properly, and the pipeline accessories are reset after flushing. The proper positions of the pipeline flushing water inlet and the water outlet are selected, and the impurities in the pipeline system can be ensured to be flushed completely.

The water supply pipeline is flushed at the maximum flow rate of the system and the flow speed of not less than 1.5m until the water color and the transparency at the outlet are consistent with those at the inlet by visual inspection.

In order to prevent chloride ions from corroding the pipeline, the pipeline is preferably filled with 0.03% potassium permanganate disinfectant for disinfection, and the disinfectant is kept still in the pipeline for 24 hours and then is emptied and then is flushed with drinking water.

Seventhly, heat preservation is carried out on the pipeline.

The hot water pipe, the hot water return pipe and the hot water heating equipment are required to be insulated by adopting an insulation material so as to prevent heat loss. The heat insulating material is made of flame-retardant foamed rubber and plastic, the heat conductivity coefficient is less than 0.037w/(m.k), the oxygen index is greater than or equal to 32, and the heat insulating material is bonded by special glue. The heat-insulating material is coated with aluminum skin with the thickness of 1.5 mm. The thickness of the heat-insulating layer is required to meet the requirements of relevant terms in the national public building energy-saving design standard (GB 50189-2005); and the binding is tight and uniform during the heat preservation construction, the surface is smooth, and the phenomenon of unevenness is avoided.

Thus, the construction process of the ring-pressing type connection thin-wall stainless steel pipe combination of the preferred embodiment is completed.

The ring-pressing type thin-wall stainless steel connecting pipe of the preferred embodiment is connected according to the ring-pressing requirement, and the stability and the sealing performance of the connecting position of the pipeline are improved. The safety and the reliability of the thin-wall stainless steel pipe in ring pressure connection after the pipe is put into use are improved; the problem of repair is reduced, the maintenance cost is reduced, and the integral grade of the building is improved.

The thin-wall stainless steel pipe ring pressing connection installation construction machine is light and handy, and does not need large-scale equipment. Compared with the traditional stainless steel pipe connection mode, the construction time is greatly shortened. After the pipe is inserted into the pipe fitting, the connection operation can be completed instantly by using a special ring pressing tool for ring pressing, so that the convenience of operation of constructors is improved, the working efficiency of the constructors is improved, the labor cost is saved, and the construction period is shortened. The thin-wall stainless steel pipe ring pressure connection does not need complex threading operation during threaded connection, and does not need pretreatment and post-treatment operation during welding, so that the comprehensive cost of pipeline construction is greatly reduced.

The annular pressure type connection thin-wall stainless steel pipe construction process of the preferred embodiment does not need to use electrogas welding, does not produce waste gas pollution and noise pollution to the atmosphere, is an environment-friendly construction process, and only needs to recycle and stack short materials and waste materials after construction, so that green construction is achieved.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. The ring-pressing type thin-wall stainless steel connecting pipe is characterized by comprising a connecting pipe,

2. The ring crush connected thin-walled stainless steel tube of claim 1, wherein the first tube body end comprises

A first circular pipe section for conveying a fluid;

wherein the diameters of the first opening section, the first transition section and the first circular pipe section are sequentially reduced, the diameter of the first opening section is larger than that of the pipe, the diameter of the first transition section is smaller than that of the pipe, and the first transition section limits the position of the pipe.

3. The ring crush connected thin-walled stainless steel tube of claim 2, wherein the first open section comprises a stopper tube and an extension tube, the stopper tube connected to the first transition section by the extension tube,

the inner ring of the limiting pipe is connected with the outer ring of the insulating sealing element, the section diameter of the limiting pipe is larger than that of the extension pipe, and a limiting surface used for limiting the position of the insulating sealing element is arranged at the joint of the limiting pipe and the extension pipe.

4. The ring crush connection thin-walled stainless steel tube of claim 3, wherein the first seal structure further comprises a third rolling groove disposed between the first rolling groove and the second rolling groove, an inner wall of the third rolling groove pressing against the insulating seal.

5. The ring-crush connecting thin-walled stainless steel tube as claimed in claim 1, wherein the connecting tube is an S316 thin-walled stainless steel tube, the diameter of the connecting tube ranges from 15mm to 100mm, and the wall thickness of the connecting tube ranges from 0.6mm to 1.2 mm.

6. The ring-crush connecting thin-walled stainless steel tube of claim 1, wherein the insulating seal is a high temperature resistant silicone ring.

7. The ring-pressing type thin-wall stainless steel connecting pipe is characterized by comprising a connecting pipe, wherein the connecting pipe is provided with a second pipe body end part which is inserted in a pipe fitting, the second pipe body end part is provided with a second sealing structure,

8. A ring-pressure type connection thin-walled stainless steel tube assembly comprising a plurality of connection tubes, part of said connection tubes comprising a first tube end according to any one of claims 1 to 6, and part of said connection tubes comprising a second tube end according to claim 7;

9. The ring-crush connecting thin-walled stainless steel tube assembly of claim 8,

the distance between the first rolling groove and the second rolling groove is equal to the distance between the fifth rolling groove and the fourth rolling groove;

after the connection of the connecting pipe is completed, the end part of the first pipe body is connected with the end part of the second pipe body, the first rolling groove is connected with the fifth rolling groove, and the second rolling groove is connected with the fourth rolling groove.

10. The ring crush connected thin-walled stainless steel tube assembly as claimed in claim 8, wherein the distance between two adjacent connecting tubes with the first tube ends is greater than 1 cm.