CN201306563Y

CN201306563Y - Forged T-shaped tee structure with small main pipe and large branch pipe

Info

Publication number: CN201306563Y
Application number: CNU2008201571999U
Authority: CN
Inventors: 宣鸣跃; 安锦平
Original assignee: SHANGHAI DIANTOU PIPING ENEGINEERING CO Ltd
Current assignee: SHANGHAI DIANTOU PIPING ENEGINEERING CO Ltd
Priority date: 2008-12-16
Filing date: 2008-12-16
Publication date: 2009-09-09
Anticipated expiration: 2018-12-16

Abstract

The utility model discloses a forged T-shaped tee structure with a small main pipe and a large branch pipe. The tee structure comprises a straight pipe-shaped tee body; two coaxial main pipe ports with the same diameter and a branch pipe port arranged on the tee body are arranged on the tee body, and the length center and the axis of the branch pipe are perpendicular to the axis of the main pipe; and the diameter of the main pipe port is smaller than the diameter of the branch pipe port. The tee structure is characterized in that the inner cavity structure of the main pipe is a cylinder hole; the inner cavity structure of the branch pipe is that firstly, a line above the shoulder extends from the port to the highest line of the inner cavity wall of the main pipe in a manner of forming the cylinder hole, and the line intersects the highest line at a point P; and then a line at the belly extends from the cross point P until being tangent with the inner cavity wall of the main pipe in a manner of forming a conical bore. The T-shaped tee structure of the utility model can greatly reduce the structure size of the straight pipe of the forged tee body under the circumstance of satisfying strength requirements, thereby reducing the weight of the forging and greatly lowering the manufacture cost of the forging.

Description

Forge and be responsible for the big T type three-port structure of smaller branch pipe

Technical field

The utility model relates to a kind of three-port structure, is specifically related to a kind of the forging and is responsible for the big T type three-port structure of smaller branch pipe.

Background technique

Welding tee is the pipe fitting of using always in the pipeline of power station, a kind of situation is arranged, be by a pipe that diameter is bigger, be diverted in the less pipe of two vertical with it diameters, or be flowed in the bigger pipe of a vertical with it diameter by the less pipe of the diameter of two coaxial lines.In this case, equal diameter of general employing is forged threeway (or extruded piping branch tee), weld a major part and a microcephaly respectively at person in charge two ends, as shown in Figure 1, this structural type is the equal diameter threeway owing to forge threeway body 1 when Intensity Design, consider that reinforcement needs, therefore the straight pipeline physical dimension of required threeway body is bigger, also will make a major part 11 and a microcephaly 20 in addition again, just has more a pair of soldering opening.Because using the forging equipment tonnage is with the required increase of forging physical dimension, and makes price increase at double, so the manufacture cost of this structure is higher.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiencies in the prior art, provides a kind of the forging to be responsible for the big T type three-port structure of smaller branch pipe, and it can reduce manufacture cost greatly under the prerequisite of proof strength.

A kind of technological scheme that realizes above-mentioned purpose is: a kind of forging is responsible for the big T type three-port structure of smaller branch pipe, the threeway body that comprises straight tube-like, this threeway body is provided with two and is located at the length center of threeway body and its axis normal in a tube opening of being responsible for axis with diameter and coaxial person in charge's port and, the diameter of described person in charge's port is less than the diameter of a tube opening, wherein, the described person in charge's inner-cavity structure is a cylindrical hole; The inner-cavity structure of described arm is: the perforate mode with cylindrical hole intersects at the P point from port until the internal chamber wall ceiling for accumulation with the person in charge more than shoulder earlier, begins until tangent with the internal chamber wall of being responsible for from described crosspoint P in the perforate mode of belly with conical bore again.

The big T type three-port structure of smaller branch pipe is responsible in above-mentioned forging, and wherein, described threeway body is that isosceles are trapezoidal in opposing longitudinal cross-section, bottom in Zhi Guanduan.

The technological scheme of the T type three-port structure that forging person in charge smaller branch pipe of the present utility model is big compared with prior art has following advantage:

1. satisfying under the situation of requirement of strength, can reduce to forge the physical dimension (also littler) of threeway body straight pipeline greatly, therefore reducing the manufacture cost that forge weight can reduce forging greatly than the forging physical dimension that does not contain CONCENTRIC REDUCER in the former design.

2. a major part, a microcephaly have been saved with soldering opening.

3. the price that saves a major part, a microcephaly or reduce the forging physical dimension and save one soldering opening is greater than far away because the price of the required increase straight pipeline of above variation length.

Description of drawings

Fig. 1 is the schematic representation that the big T type three-port structure of smaller branch pipe is responsible in the forging of prior art;

Fig. 2 a, Fig. 2 b are the schematic representation that the big T type three-port structure of smaller branch pipe is responsible in forging of the present utility model.

Embodiment

In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:

See also Fig. 2, the big T type three-port structure of smaller branch pipe is responsible in forging of the present utility model, the threeway body that comprises straight tube-like, this threeway body is provided with two and is responsible for 11,12 and one tube openings 20 of port, wherein, be responsible for

ports

11,12 with diameter and coaxial line for two, a tube opening 20 is located at the length center of threeway body and its axis normal in the axis of being responsible for 10, is responsible for the diameter of the diameter of

port

11,12 less than a tube opening 20.

Forging of the present utility model is responsible in the big T type three-port structure of smaller branch pipe, and the person in charge 10 inner-cavity structure is a cylindrical hole; The inner-cavity structure of arm 2 is: the perforate mode with cylindrical hole 21 intersects at the P point from port until the internal chamber wall ceiling for accumulation with the person in charge 10 more than shoulder earlier, begins until tangent with the internal chamber wall of being responsible for 10 from crosspoint P in the perforate mode of belly with conical bore 22 again.

Threeway body 1 is that isosceles are trapezoidal in opposing longitudinal cross-section, bottom in Zhi Guanduan 2.

Forging of the present utility model is responsible for the big T type three-port structure of smaller branch pipe and has been saved a major part, a microcephaly with soldering opening, in addition, owing to make predominant tube diameter less, under the situation that intensity meets the demands, reduce to send out the length dimension (forging that does not contain CONCENTRIC REDUCER than former design is also little) of forging threeway, thereby under the prerequisite of proof strength, greatly reduce manufacture cost.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model the above embodiment's variation, modification.

Claims

1. one kind is forged the big T type three-port structure of person in charge's smaller branch pipe, the threeway body that comprises straight tube-like, this threeway body is provided with two and is located at the length center of threeway body and its axis normal in a tube opening of being responsible for axis with diameter and coaxial person in charge's port and, the diameter of described person in charge's port is less than the diameter of a tube opening, it is characterized in that the described person in charge's inner-cavity structure is a cylindrical hole; The inner-cavity structure of described arm is: the perforate mode with cylindrical hole intersects at the P point from port until the internal chamber wall ceiling for accumulation with the person in charge more than shoulder earlier, begins until tangent with the internal chamber wall of being responsible for from described crosspoint P in the perforate mode of belly with conical bore again.

2. the big T type three-port structure of smaller branch pipe is responsible in forging according to claim 1, it is characterized in that described threeway body is that isosceles are trapezoidal in opposing longitudinal cross-section, bottom in Zhi Guanduan.