CN201306561Y

CN201306561Y - 45 DEG Y-shaped forging tee structure

Info

Publication number: CN201306561Y
Application number: CNU200820157197XU
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 45 DEG Y-shaped forging tee structure which comprises a main pipe and a branch pipe; and center lines in length directions of the branch pipe and the main pipe form an angle of 45 DEG. The forging tee structure is characterized in that the inner hole of the main pipe is provided with unequal diameters; the inner hole of the main pipe (5) is integrally connected by a front variable diameter hole (11) and a back straight hole (12); and the variable diameter hole (11) is in a shrinkage graded state from the main pipe inlet (13) to the intersection (14). The forging tee structure of the utility model can improve the forced state of the forging tee, increase the reinforcement area, and lower the stress level; and furthermore, the forging tee structure can reduce the structure size of the forging tee, thereby reducing the price of the forging.

Description

A kind of 45 ° of Y swaged forging three-port structures

Technical field

The utility model relates to a kind of 45 ° of Y swaged forging three-port structures.

Background technique

In the pipeline of power station, often have by a pipeline that diameter is bigger, be the situation that the 45 direction splits into two pipelines along former direction with former direction respectively.In this case, the structure of the general forging threeway of adopting comprises the person in charge 1, arm 2 and CONCENTRIC REDUCER 3 at present, and the isodiametric person in charge 1 isolates arm 2, is responsible for to add CONCENTRIC REDUCER 3 of weldering on 1 again, as shown in Figure 1.Wherein arm 2 be responsible for 1 length direction center line and be the α angle, α=45 °.On the one hand, be equal diameter owing to be responsible for 1, this structure causes the stress level height for a short time the person in charge 1 and intersecting line place, arm 2 right side 4 region of high stress reinforcement areas, and the forging threeway of part specification needs bigger physical dimension come reinforcement.On the other hand, this structure needs to make in addition a CONCENTRIC REDUCER, and has more the butt joint weld bond one.Therefore, the forging threeway of this structure not only stress level height causes Security low, and the physical dimension increasing causes manufacture cost high.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of 45 ° of Y swaged forging three-port structures are provided, it can not only improve the stress of forging threeway, reduce stress level, but also CONCENTRIC REDUCER parts and butt joint weld bond have been omitted, reduced to forge the physical dimension of threeway, thereby reduced manufacture cost.

The technological scheme that realizes above-mentioned purpose is: a kind of 45 ° of Y swaged forging three-port structures, comprise and being responsible for and arm, it is characterized in that, described person in charge's endoporus is that the straight hole one by the reducing hole of front portion and rear portion is linked to be, described reducing hole is for being contraction gradual change state from being responsible for ingress to prong, and the aperture of described straight hole is identical with the aperture of the endoporus of described arm.The person in charge and the intersecting line place of arm are outer gibbosity.Because the reducer of being responsible for endoporus has increased the area at intersecting line place, thereby reduced stress level, also reduced to forge the physical dimension of threeway simultaneously between ingress and prong place.

The technological scheme of the open-celled structure that welding tee of the present utility model is responsible for compared with prior art has following advantage:

1. improve the stress of forging threeway, increased the reinforcement area, reduced stress level, thereby improve the Security of forging threeway.

2. satisfying under the situation of requirement of strength, reducing to forge the physical dimension of threeway, reducing the forging price.

Description of drawings

Fig. 1 is the schematic representation of the forging three-port structure of prior art;

The schematic representation of Fig. 2 forging three-port structure of the present utility model.

Embodiment

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

See also Fig. 2, forging three-port structure of the present utility model comprises and is responsible for 1 and arm 2, arm 2 be responsible for 1 length direction center line and be the α angle, α=45 °.The above-mentioned person in charge's 1 endoporus is made up of a reducing hole and a straight hole for becoming diameter, and its vary in diameter mode is: be responsible for 1 diameter of bore and 13 begin to be contraction gradual change shape from entering the mouth, be contracted to prong 4 places vertically gradually, thereby form a reducing hole 11.4 places begin from prong, and the person in charge 1 endoporus rear portion is an isodiametric straight hole 12.Described straight hole 12 is linked to be with reducing hole 11 one, and equates with the aperture of the endoporus 21 of arm 2.The person in charge 1 is outer gibbosity with the right side intersection 3 of arm 2.Can be the obtuse angle, also can be fillet.The reducing hole 11 of being responsible for 1 endoporus between ingress 13 and prong 14, thereby increased be responsible for 1 with the area of the intersection 3 of arm 2, promptly increased the reinforcement area, reduced stress level.As mentioned above, finish in the person in charge self inside, do not need to add in addition CONCENTRIC REDUCER of weldering, thereby reduced the physical dimension of forging threeway owing to be responsible for the vary in diameter of endoporus.

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 45 ° Y swaged forging three-port structures, comprise the person in charge (1) and arm (2), it is characterized in that, the described person in charge (1) endoporus is that straight hole (12) one by the reducing hole (11) of front portion and rear portion is linked to be, and described reducing hole (11) is for being the gradual change state that shrinks from being responsible for inlet (13) to prong (14).

2. forging three-port structure according to claim 1 is characterized in that, the aperture of described straight hole (12) is identical with the aperture of described arm (2).

3. forging three-port structure according to claim 1 and 2 is characterized in that, the described person in charge (1) and arm (2) intersecting line place (3) are outer gibbosity.