CN210770912U

CN210770912U - Three-way pipe connecting structure

Info

Publication number: CN210770912U
Application number: CN201921908409.8U
Authority: CN
Inventors: 杨庆林; 王欢
Original assignee: Northern Engineering and Technology Corp MCC
Current assignee: Northern Engineering and Technology Corp MCC
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-06-16
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses a three-way pipe connection structure, including three-way pipe and the three flange of tip, its characterized in that: further comprising: the first adjusting flange assembly, the second adjusting flange assembly, the third adjusting flange assembly and the bolt assembly; the first adjusting flange assembly, the second adjusting flange assembly and the third adjusting flange assembly are respectively inserted into a first connecting flange, a second connecting flange and a third connecting flange corresponding to the three-way pipe and are fixedly connected with the three-way pipe through bolt assemblies; the second adjusting flange component and the third adjusting flange component have the same structure as the first adjusting flange component. The utility model has the advantages that: simple structure, the operation of being convenient for, every regulation flange all possesses circumference and axial adjustment ability, has greatly strengthened the functional and the adjustment of this three-way pipe connection structure for pipe connection and has rectified poor nature.

Description

Three-way pipe connecting structure

Technical Field

The utility model belongs to the technical field of the pipe connection, concretely relates to three-way pipe connection structure.

Background

In industry, the most commonly used tools for liquid conveying are steel pipes of various types, or the steel pipes are connected one by one in a welding mode or a flange connection mode, in order to ensure the durability of the steel pipes, anti-corrosion wear-resistant materials are often adhered or sprayed inside the steel pipes, the anti-corrosion wear-resistant materials can be damaged due to welding, the pipelines with linings are usually connected by flanges, if all the pipelines are rigidly connected, the three-way joints or the tail ends of the pipelines can be prevented from being butted and installed at part of flange joints due to the accumulation of manufacturing errors and installation errors; the axial force generated by the action of thermal expansion and cold contraction on the installed pipeline can also cause the local position of the rigidly connected pipeline to generate a stress concentration phenomenon, thereby bringing adverse effects on the safe use of the pipeline. In practice, flexible hoses can be used to overcome the above-mentioned adverse effects, but the hoses have insufficient rigidity, the adjustment range of pressure-resistant hoses is limited, and the cost is high. Therefore, a three-way pipe connecting structure is urgently needed, the three-way pipe connecting structure has high rigidity, the adjusting capacity is realized in the circumferential direction and the axial direction of connection, the influence of manufacturing errors and mounting errors on flange butt joint can be effectively overcome, and the influence of expansion with heat and contraction with cold can be eliminated.

Disclosure of Invention

In view of the above problems, the present invention is to provide a three-way pipe connection structure with simple structure, axial extension, 360 ° rotation in circumferential direction, and flexible adjustment and installation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses a three-way pipe connecting structure, which comprises a three-way pipe, wherein the three-way pipe comprises a main steel pipe, a secondary steel pipe, a first connecting flange, a second connecting flange and a third connecting flange; first flange and second flange be connected fixedly with the both ends of main steel pipe respectively, the one end of inferior steel pipe run through mutually and peg graft main steel pipe, the other end is connected fixedly with third flange, its characterized in that: further comprising: the first adjusting flange assembly, the second adjusting flange assembly, the third adjusting flange assembly and the bolt assembly; the first adjusting flange assembly, the second adjusting flange assembly and the third adjusting flange assembly are respectively inserted into the first connecting flange, the second connecting flange and the third connecting flange corresponding to the three-way pipe and are fixedly connected with the three-way pipe through bolt assemblies.

The second adjusting flange component and the third adjusting flange component have the same structure as the first adjusting flange component.

The first adjusting flange assembly comprises a first interface flange, a first interface steel pipe, a first annular baffle, a first pressing flange, a first pressing steel pipe, a first annular pressing plate and a first rubber sealing ring; the first interface flange is fixedly connected with the upper end of the first interface steel pipe, the first annular baffle is fixedly connected with the bottom surface of the first interface steel pipe, and the outer diameter of the first annular baffle is larger than that of the first interface steel pipe and smaller than the inner diameter of the main steel pipe; between first interface flange and first ring baffle, on first interface steel pipe, from the top down overlaps in proper order has first hold-down flange, first steel pipe that compresses tightly, first ring clamp and first rubber seal, first hold-down flange and the first steel pipe upper end fixed connection that compresses tightly, the quantity of first ring clamp is one more than the quantity of first rubber seal, and every first rubber seal is located between two first ring clamps, the bottom surface of the first ring clamp of the bottom contacts with the top surface of first ring baffle, the top and bottom of first rubber seal contacts with two first ring clamps respectively, the bottom surface of the first steel pipe that compresses tightly contacts with the first ring clamp of the top.

The utility model has the advantages that:

1) the interface flange of the utility model can circumferentially rotate by 360 degrees, and when the rigid connection pipeline can be effectively avoided, the flange can not be fixed and connected through the bolt due to circumferential dislocation;

2) the interface flange of the utility model can move axially, which can effectively avoid the situation that when the rigid connection pipeline is connected, the flanges can not be connected because the gaps between the connected flanges are too large or the flanges interfere with each other because of the axial deviation, and the structure has larger axial adjustment space;

3) the multi-layer rubber sealing structure of the utility model can ensure the sealing performance of the pipeline connection;

4) further, the utility model discloses also can remove inferior steel pipe, turn into straight steel pipe and connect.

Drawings

Fig. 1 is a schematic view of the three-way pipe of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the adjusting flange assembly of the present invention.

Fig. 4 is a schematic view of an embodiment of the present invention.

In the figure, 1-three-way pipe, 101-main steel pipe, 102-secondary steel pipe, 103-first connecting flange, 104-second connecting flange, 105-third connecting flange; 2-a first adjusting flange component, 201-a first interface flange, 202-a first interface steel pipe, 203-a first annular baffle, 204-a first pressing flange, 205-a first pressing steel pipe, 206-a first annular pressing plate, 207-a first rubber sealing ring; 3-a second adjusting flange assembly, 301-a second interface flange, 302-a second interface steel pipe, 303-a second annular baffle, 304-a second pressing flange, 305-a second pressing steel pipe, 306-a second annular pressing plate, 307-a second rubber sealing ring; 4-a third adjusting flange component, 401-a third interface flange, 402-a third interface steel pipe, 403-a third annular baffle, 404-a third pressing flange, 405-a third pressing steel pipe, 406-a third annular pressing plate, 407-a third rubber sealing ring; 5-bolt assembly.

Detailed Description

In this specification, the drawings are not to scale and like reference numerals refer to like parts. The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1 and 2, a three-way pipe connecting structure comprises a three-way pipe 1, wherein the three-way pipe 1 comprises a main steel pipe 101, a secondary steel pipe 102, a first connecting flange 103, a second connecting flange 104 and a third connecting flange 105; the first connecting flange 103 and the second connecting flange 104 are respectively connected and fixed with two ends of the main steel pipe 101; one end of the secondary steel pipe 102 is penetrated and inserted with the main steel pipe 101, and the other end is fixedly connected with the third connecting flange 105, and the steel pipe is characterized in that: further comprising: a first adjusting flange component 2, a second adjusting flange component 3, a third adjusting flange component 4 and a bolt component 5; the first adjusting flange component 2, the second adjusting flange component 3 and the third adjusting flange component 4 are respectively inserted into a first connecting flange 103, a second connecting flange 104 and a third connecting flange 105 corresponding to the three-way pipe 1 and are fixedly connected with the three-way pipe 1 through bolt components 5;

the second adjusting flange component 3 and the third adjusting flange component 4 have the same structure as the first adjusting flange component 2.

As shown in fig. 3, the first adjusting flange assembly 2 includes a first interface flange 201, a first interface steel pipe 202, a first annular baffle 203, a first compression flange 204, a first compression steel pipe 205, a first annular compression plate 206 and a first rubber sealing ring 207; the first interface flange 201 is fixedly connected with the upper end of the first interface steel pipe 202, the first annular baffle 203 is fixedly connected with the bottom surface of the first interface steel pipe 202, and the outer diameter of the first annular baffle 203 is larger than that of the first interface steel pipe 202 and smaller than that of the main steel pipe 101; between the first interface flange 201 and the first annular baffle plate 203, the first interface steel pipe 202 is sleeved with a first pressing flange 204, a first pressing steel pipe 205, a first annular pressing plate 206 and a first rubber sealing ring 207 in sequence from top to bottom, the first pressing flange 204 is fixedly connected with the upper end of the first pressing steel pipe 205, the number of the first annular pressing plates 206 is one more than that of the first rubber sealing rings 207, each first rubber sealing ring 207 is positioned between two first annular pressing plates 206, the bottom surface of the lowest first annular pressing plate 206 is contacted with the top surface of the first annular baffle plate 203, the upper surface and the lower surface of the first rubber sealing ring 207 are respectively contacted with the two first annular pressing plates 206, and the bottom surface of the first pressing steel pipe 205 is contacted with the first annular pressing plate 206 at the uppermost end.

Examples

As shown in fig. 4, the crossing point of the central line of setting main steel pipe 101 and time steel pipe 102 is the benchmark, and the axial adjustment distance of every interface flange is 50mm, therefore, the benchmark can be 100mm at main steel pipe 101's axial direction adjustment distance, is 50mm at time steel pipe 102's axial direction adjustment distance, synthesizes, and the benchmark can be adjusted at a parallelogram within range, and this kind of performance characteristics can make the utility model discloses possess very big position adjustment installation ability when practical application. To the pipeline that installs, the utility model discloses an adjusting flange all can effectively eliminate the produced axial force influence of expend with heat and contract with cold.

The utility model discloses an installation operation:

when the connecting pipeline is installed on site, the bolt assembly 5 is firstly loosened, so that the first adjusting flange assembly 2, the second adjusting flange assembly 3 and the third adjusting flange assembly 4 are in a movable state, then the first interface flange 201, the second interface flange and the third interface flange are respectively and fixedly connected with the external flange, at the moment, the first interface flange 201, the second interface flange and the third interface flange are in a fixed state, and the corresponding first annular baffle 203, the second annular baffle and the third annular baffle are also in a fixed state. Then the bolt assembly 5 is locked, under the action of pressure, the annular pressing plate and the rubber sealing ring are pressed on the annular baffle plate, and the rubber sealing ring is elastically deformed to play a sealing role.

Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

Claims

1. A three-way pipe connecting structure comprises a three-way pipe, wherein the three-way pipe comprises a main steel pipe, a secondary steel pipe, a first connecting flange, a second connecting flange and a third connecting flange; the first connecting flange and the second connecting flange are respectively connected and fixed with two ends of the main steel pipe; one end of the secondary steel pipe penetrates through the main steel pipe in an inserting mode, and the other end of the secondary steel pipe is fixedly connected with the third connecting flange, and the secondary steel pipe connecting structure is characterized in that: further comprising: the first adjusting flange assembly, the second adjusting flange assembly, the third adjusting flange assembly and the bolt assembly; the first adjusting flange assembly, the second adjusting flange assembly and the third adjusting flange assembly are respectively inserted into a first connecting flange, a second connecting flange and a third connecting flange corresponding to the three-way pipe and are fixedly connected with the three-way pipe through bolt assemblies; the second adjusting flange component and the third adjusting flange component have the same structure as the first adjusting flange component.

2. The three-way pipe connecting structure according to claim 1, wherein: the first adjusting flange assembly comprises a first interface flange, a first interface steel pipe, a first annular baffle, a first pressing flange, a first pressing steel pipe, a first annular pressing plate and a first rubber sealing ring; the first interface flange is fixedly connected with the upper end of the first interface steel pipe, the first annular baffle is fixedly connected with the bottom surface of the first interface steel pipe, and the outer diameter of the first annular baffle is larger than that of the first interface steel pipe and smaller than the inner diameter of the main steel pipe; between first interface flange and first ring baffle, on first interface steel pipe, from the top down overlaps in proper order has first hold-down flange, first steel pipe that compresses tightly, first ring clamp and first rubber seal, first hold-down flange and the first steel pipe upper end fixed connection that compresses tightly, the quantity of first ring clamp is one more than the quantity of first rubber seal, and every first rubber seal is located between two first ring clamps, the bottom surface of the first ring clamp of the bottom contacts with the top surface of first ring baffle, the top and bottom of first rubber seal contacts with two first ring clamps respectively, the bottom surface of the first steel pipe that compresses tightly contacts with the first ring clamp of the top.