CN215674157U

CN215674157U - Three-way pipeline

Info

Publication number: CN215674157U
Application number: CN202121352417.6U
Authority: CN
Inventors: 周玲
Original assignee: Guangdong Liansu Technology Industrial Co Ltd
Current assignee: Guangdong Liansu Technology Industrial Co Ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-01-28
Anticipated expiration: 2031-06-15

Abstract

The utility model relates to the technical field of pipelines, in particular to a three-way pipeline which comprises a first connecting joint 1, an arc-shaped bent pipe 2, a second connecting joint 3 and a third connecting joint 5, wherein the first connecting joint 1 and the third connecting joint 5 are respectively connected to two ends of the arc-shaped bent pipe 2, the second connecting joint 3 is connected to the arc-shaped bent pipe 2 and positioned between two ends of the arc-shaped bent pipe 2, and the axis of the second connecting joint 3 is vertical to the axes of the first connecting joint 1 and the third connecting joint 5. The three-way pipe is suitable for a pipeline corner intersection scene, the smooth connection of pipelines which are mutually perpendicular or form a certain included angle in space is realized, the head loss is reduced, the shunting or converging effect is realized, and the defect that the conventional three-way pipe cannot be smoothly turned at a large angle at a wall corner is overcome.

Description

Three-way pipeline

Technical Field

The utility model relates to the technical field of pipelines, in particular to a three-way pipeline.

Background

At present, a right-angle tee joint, a flat tee joint and a right-angle elbow are commonly used at the intersection position of a wall corner of a pipeline to change the flow direction and realize flow distribution or flow convergence. At this time, the water flow resistance is large due to the sudden change of direction of the water flow in a short distance, which causes the problems of large pressure loss at the water outlet end and small water outlet amount. And the use of a plurality of pipe fittings has taken up great installation space, and hidden danger under the follow-up construction is buried more to many places welding, has increased human cost and material cost. The three-way pipe fitting has three pipe sections which are perpendicular to each other in pairs, and still has the problems of large head loss, large pressure loss of the tail end of water outlet and small water outlet amount because the corner of the three-way pipe fitting is a right angle.

Chinese utility model patent CN207830803U (the publication date is 2018, 09/07), discloses a formula tee bend converges with arc elbow, be responsible for, vertical branch pipe including the level, the both ends that the level was responsible for are entrance point, exit end respectively, the level is responsible for and is a straight tube, vertical branch pipe's free end with the level is responsible for perpendicularly, the root of vertical branch pipe along smooth pitch arc to the level be responsible for the exit end after crooked with the middle part intercommunication that the level was responsible for, smooth pitch arc is a diameter reducing circular arc line that a diameter gradually becomes big, reducing circular arc line's minimum radius is greater than the level is responsible for 1.5 times of diameter, its vertical branch pipe's one end and the perpendicular pipeline layout of being convenient for of being responsible for, the other end with be responsible for slick and sly connected for fluidic flow resistance is little to can reduce the loss of pressure of whole pipeline. The patent can solve the problem of overlarge flow resistance when the fluids converge in the same plane, but cannot realize the convergence and the diversion of the fluids on different planes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a three-way pipeline which is convenient to connect and small in head loss.

In order to achieve the purpose, the utility model provides a three-way pipeline which comprises a first connecting joint, an arc-shaped bent pipe, a second connecting joint and a third connecting joint, wherein the first connecting joint and the third connecting joint are respectively connected to two ends of the arc-shaped bent pipe, the second connecting joint is connected to the arc-shaped bent pipe and positioned between two ends of the arc-shaped bent pipe, and the axis of the second connecting joint is perpendicular to the axes of the first connecting joint and the third connecting joint.

Preferably, the device further comprises a straight pipe, the second connecting joint is connected to the arc-shaped bent pipe through the straight pipe, one end of the straight pipe is connected to the arc-shaped bent pipe, the second connecting joint is connected with the other end of the straight pipe, and the axis of the straight pipe is perpendicular to the axes of the first connecting joint and the third connecting joint.

Preferably, the axis of the arc-shaped bent pipe is a section of arc; the central angle corresponding to the circular arc is 45-180 degrees.

Preferably, the central angle corresponding to the circular arc is 90 °.

Preferably, the axis of the straight pipe intersects with the axis of the arc-shaped bent pipe, and the intersection point is the midpoint of the axis of the arc-shaped bent pipe.

Preferably, the first connection joint, the second connection joint, and the third connection joint are all straight joints.

Preferably, stepped holes are formed in the end portions of the first connecting joint, the second connecting joint and the third connecting joint.

Preferably, the ends of the first connecting joint, the second connecting joint and the third connecting joint, which are far away from the arc-shaped elbow pipe, are in a chamfer structure.

Preferably, the outer wall of the first connector is provided with a first positioning rib parallel to the axis of the first connector, the outer wall of the second connector is provided with a second positioning rib parallel to the axis of the second connector, and the outer wall of the third connector is provided with a third positioning rib parallel to the axis of the third connector.

Preferably, the arc-shaped bent pipe and the straight pipe are polymer material pipes or metal pipes or cement pipes or nano material pipes.

Compared with the prior art, the utility model has the beneficial effects that:

the second connecting joint is connected with the arc-shaped bent pipe, and is vertical to the plane where the arc-shaped bent pipe is located, so that the flow splitting and converging of fluid on two mutually vertical planes and the flow steering can be realized, the use of pipe fittings is reduced, the cost is reduced, the pipeline connection is reduced, and the leakage risk and the head loss are reduced; and the gradual steering of the arc-shaped bent pipe is utilized, so that the water hammer is effectively reduced, the pressure impact is reduced, the water flow resistance is reduced, and the water flow is smoother. According to the utility model, the second connecting joint is connected to the arc-shaped bent pipe, so that the head loss of the fluid in the second connecting joint after flowing into the arc-shaped bent pipe and then turning can be reduced. In addition, the first connecting joint and the third connecting joint are connected to the two ends of the arc-shaped bent pipe in the embodiment, so that the arc-shaped bent pipe can be conveniently connected with other straight pipes, the pipe fitting disclosed by the utility model is tightly connected with other pipe fittings, and leakage can be avoided and the head loss can be reduced.

Drawings

FIG. 1 is a schematic structural diagram of a three-way pipe of the present invention.

FIG. 2 is a side view of a tee of the present invention.

FIG. 3 is a top view of a tee of the present invention.

In the figure, 1-a first connecting joint, 2-an arc-shaped bent pipe, 3-a second connecting joint, 4-a straight pipe, 5-a third connecting joint, 6-a third positioning rib, 7-a second positioning rib and 8-a first positioning rib.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, a preferred embodiment of a tee pipe according to the present invention includes a first connection joint 1, an arc elbow 2, a second connection joint 3, and a third connection joint 5, wherein the first connection joint 1 and the third connection joint 5 are respectively connected to two ends of the arc elbow 2, the second connection joint 3 is connected to the arc elbow 2 and located between two ends of the arc elbow 2, and an axis of the second connection joint 3 is perpendicular to axes of the first connection joint 1 and the third connection joint 5.

The three-way pipeline further comprises a straight pipe 4, the second connecting joint 3 is connected to the arc-shaped bent pipe 2 through the straight pipe 4, one end of the straight pipe 4 is connected to the arc-shaped bent pipe 2, the second connecting joint 3 is connected with the other end of the straight pipe 4, and the axis of the straight pipe 4 is perpendicular to the axes of the first connecting joint 1 and the third connecting joint 5.

In the embodiment, the second connecting joint 3 is connected with the arc-shaped bent pipe 2, and the second connecting joint 3 is perpendicular to the plane of the arc-shaped bent pipe 2, so that the flow splitting and converging and the flow steering of the fluid on the two mutually perpendicular planes can be realized, the use of pipe fittings is reduced, the cost is reduced, the pipeline connection is reduced, and the leakage risk and the head loss are reduced; and the arc-shaped bent pipe 2 is gradually turned, so that the water hammer is effectively reduced, the pressure impact is reduced, the water flow resistance is reduced, and the water flow is smoother. In the present embodiment, the second connection joint 3 is connected to the curved elbow 2, so that the head loss of the fluid flowing into the curved elbow 2 and then being diverted can be reduced. Moreover, the both ends of the arc-shaped elbow pipe 2 of this embodiment are connected with the first connector 1 and the third connector 5, can conveniently be connected with other straight tubes, make the pipe fitting of this embodiment closely connected with other pipe fittings, can avoid leaking and reduce head loss.

The axis of the arc-shaped bent pipe 2 is a section of arc, so that the arc-shaped bent pipe is suitable for a wall body with a longer length. Further, the circular arc corresponds to a central angle of 45 ° to 180 °. The central angle corresponding to the circular arc of the embodiment is 90 degrees, and the confluence and the diversion of three mutually vertical pipelines can be realized.

In the present embodiment, the axis of the straight tube 4 intersects the axis of the curved tube 2, and the intersection point is the midpoint of the axis of the curved tube 2. The straight pipe 4 of the present embodiment is connected at the midpoint of the curved pipe 2. When the steering is performed through the arc-shaped bent pipe 2, the centrifugal force at the middle point of the arc-shaped bent pipe 2 is the largest, and the pressure difference of the fluid at the middle point is the largest, so that the steering loss of the fluid at the middle point is the largest, therefore, in the embodiment, the straight pipe 4 is connected to the middle point of the arc-shaped bent pipe 2, so that the fluid flowing into the arc-shaped bent pipe 2 from the straight pipe 4 does not need to pass through the middle point of the arc-shaped bent pipe 2 again, and the head loss can be reduced.

The first connecting joint 1, the second connecting joint 3 and the third connecting joint 5 are straight joints, the straight joints can be connected with common straight pipes more conveniently, and the straight joints can reduce head loss caused by water flow turning.

In addition, the end parts of the first connecting joint 1, the second connecting joint 3 and the third connecting joint 5 are all provided with step holes, so that when other external connecting pieces are inserted into the connecting joints, the external connecting pieces abut against the reducing positions of the step holes to play a role in positioning, the inner diameter of a pipeline of the external connecting pieces is the same as the inner diameter of the small-diameter position of the step holes, the diameter of a channel through which fluid flows is prevented from being reduced, and the head loss is reduced.

In addition, the end of the first connecting joint 1, the second connecting joint 3 and the third connecting joint 5 away from the arc-shaped elbow pipe 2 is a chamfer structure, so that burrs in the production of the first connecting joint 1, the second connecting joint 2 and the third connecting joint 5 can be removed, and the installation is convenient. Is beneficial to the smooth insertion and stable welding of the external pipeline.

The outer wall of the first connecting joint 1 is provided with a first positioning rib 8 parallel to the axis of the first connecting joint, the outer wall of the second connecting joint 3 is provided with a second positioning rib 7 parallel to the axis of the second connecting joint, and the outer wall of the third connecting joint 5 is provided with a third positioning rib 6 parallel to the axis of the third connecting joint. The positioning ribs can determine the installation angle and position when each connecting joint is inserted into other pipe fittings for installation, so that the installation is more accurate and convenient.

The arc-shaped bent pipe 2 and the straight pipe 4 are polymer material pipes or metal pipes or cement pipes or nano material pipes. The arc-shaped bent pipe 2 and the straight pipe 4 of the present embodiment are PPR (polypropylene tri-type) pipes.

In summary, the second connection joint 3 is connected with the arc-shaped bent pipe 2, and the second connection joint 3 is perpendicular to the plane of the arc-shaped bent pipe 2, so that the diversion and confluence of fluid and the water flow steering on two mutually perpendicular planes can be realized, the use of pipe fittings is reduced, the cost is reduced, the pipeline connection is reduced, and the risk of leakage and the head loss are reduced; and the arc-shaped bent pipe 2 is gradually turned, so that the water hammer is effectively reduced, the pressure impact is reduced, the water flow resistance is reduced, and the water flow is smoother. In the present embodiment, the second connection joint 3 is connected to the curved elbow 2, so that the head loss of the fluid flowing into the curved elbow 2 and then being diverted can be reduced. Moreover, the both ends of the arc-shaped elbow pipe 2 of this embodiment are connected with the first connector 1 and the third connector 5, can conveniently be connected with other straight tubes, make the pipe fitting of this embodiment closely connected with other pipe fittings, can avoid leaking and reduce head loss.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A tee pipe is characterized in that: including first attach fitting (1), arc return bend (2), second attach fitting (3), third attach fitting (5), first attach fitting (1) and third attach fitting (5) are connected respectively at the both ends of arc return bend (2), and second attach fitting (3) are connected on arc return bend (2), are located between the both ends of arc return bend (2), just the axis of second attach fitting (3) is perpendicular with the axis of first attach fitting (1) and third attach fitting (5).

2. The tee pipeline of claim 1, wherein: still include straight tube (4), second attach fitting (3) are connected on arc return bend (2) through straight tube (4), and wherein the one end of straight tube (4) is connected on arc return bend (2), and second attach fitting (3) are connected with the other end of straight tube (4), and the axis of straight tube (4) is perpendicular with the axis of first attach fitting (1) and third attach fitting (5).

3. The tee pipeline of claim 1, wherein: the axis of the arc-shaped bent pipe (2) is a section of arc; the central angle corresponding to the circular arc is 45-180 degrees.

4. The tee pipeline of claim 3, wherein: the corresponding central angle of the circular arc is 90 degrees.

5. The tee pipe of claim 2, wherein: the axis of the straight pipe (4) is intersected with the axis of the arc-shaped bent pipe (2), and the intersection point is the midpoint of the axis of the arc-shaped bent pipe (2).

6. The tee pipeline of claim 1, wherein: the first connecting joint (1), the second connecting joint (3) and the third connecting joint (5) are straight joints.

7. The tee pipeline of claim 1, wherein: the end parts of the first connecting joint (1), the second connecting joint (3) and the third connecting joint (5) are provided with step holes.

8. The tee pipeline of claim 1, wherein: the first connecting joint (1), the second connecting joint (3) and the third connecting joint (5) are far away from one end of the arc-shaped elbow (2) and are of a chamfer structure.

9. The tee pipeline of claim 1, wherein: the outer wall of the first connecting joint (1) is provided with a first positioning rib (8) parallel to the axis of the first connecting joint, the outer wall of the second connecting joint (3) is provided with a second positioning rib (7) parallel to the axis of the second connecting joint, and the outer wall of the third connecting joint (5) is provided with a third positioning rib (6) parallel to the axis of the third connecting joint.

10. The tee pipeline of claim 1, wherein: the arc-shaped bent pipe (2) and the straight pipe (4) are polymer material pipes or metal pipes or cement pipes or nano material pipes.