Three-way reducer union

Abstract

The utility model discloses a three-way reducer union which comprises a first connector, a second connector and a third connector, the first connector, the second connector and the third connector are connected through a connecting part, a communicating space is arranged in the connecting part, and the first connector, the second connector and the third connector are integrally communicated in the communicating space. The communicating space is in a first circular truncated cone shape, the interior of the third connector communicates with the communicating space through an arc-shaped channel, the arc-shaped channel penetrates through the connecting part, and the inner edge of the arc-shaped channel extends to the first inner end face of the first connector from the third inner end face of the third connector; the three-way reducer union is used for reducing connection of pipe fittings, the requirement difference of fluid transmission between different systems is met, the third connector is communicated with the connecting part through the arc-shaped channel, fluid assistance is reduced, and the smoothness of material circulation in the union is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a three-way reducing joint. Background Art

[0002] With the increase in the nature and types of media transported by pipelines, the requirements for the fluid transportation performance of the transportation pipelines are also getting higher and higher. In traditional T-shaped three-way joints, the fluid usually flows in from the straight end, and the outflow ends are respectively horizontally and vertically communicated with the inflow end. When the fluid flows through, large eddies will be generated at the right-angle side, increasing the flow resistance and pressure loss, and increasing the fluid transportation cost. When the joint is used for the high-speed and high-pressure transportation of powdery solid particles, the impact of the eddy on the three-way connection is also serious, which is easy to cause erosion and damage at the three-way, affecting the stable operation of the equipment. Content of the Utility Model

[0003] In view of the large flow resistance in the prior art when the outflow end of the T-shaped three-way joint is vertically communicated with the inflow end, the utility model provides a three-way reducing joint, which reduces the fluid resistance through an arc-shaped channel for guiding.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A three-way reducing joint includes a first connecting head, a second connecting head and a third connecting head. The first connecting head, the second connecting head and the third connecting head are connected through a connecting part. The connecting part is coaxially arranged with the first connecting head and the second connecting head. The axis of the third connecting head is perpendicular to the axes of the connecting part, the first connecting head and the second connecting head respectively. A communicating space is arranged inside the connecting part. The first connecting head, the second connecting head and the third connecting head are integrally communicated at the communicating space. The inner diameter of the first connecting head is larger than that of the second connecting head. The communicating space is in the shape of a first frustum. The inside of the third connecting head is communicated with the communicating space through an arc-shaped channel. The arc-shaped channel penetrates the connecting part. The inner edge of the arc-shaped channel extends from the third inner end face of the third connecting head to the first inner end face of the first connecting head. The first tangent line of the inner edge near the first connecting head is parallel to the axis of the first connecting head. The second tangent line of the inner edge near the third connecting head is parallel to the axis of the third connecting head.

[0006] Preferably, the radial section of the arc-shaped channel is circular, and the diameter of the circle is smaller than the inner diameter of the third connecting head.

[0007] Preferably, the central axis of the radial section of the arc-shaped channel intersects with the axis of the third connecting head.

[0008] Preferably, the center of the arc corresponding to the arc-shaped channel is located at the midpoint of the intersection line of the plane where the third inner end face is located and the plane where the first inner end face is located. The inner edge of the arc-shaped channel passes through the edge of the first end face of the connecting space.

[0009] Preferably, the central angle corresponding to the inner edge of the arc-shaped channel is 90°.

[0010] Preferably, the inner diameter of the connection space at the connection end with the first connector is smaller than the inner diameter of the first connector, and the inner diameter of the connection space at the connection end with the second connector is smaller than the inner diameter of the second connector, so as to form an internal thickened part of the connection part.

[0011] Preferably, the outer wall of the first connector is cylindrical, and the connection part and the outer wall of the second connector form a second frustum shape in combination, and the large-diameter end face of the second frustum shape is connected to the first connector.

[0012] Preferably, the outer wall of the first connector is cylindrical, and the connection part and the outer wall of the second connector form a second frustum shape in combination, and the large-diameter end face of the second frustum shape is connected to the first connector.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. This three-way reducing joint includes a first connector, a second connector and a third connector with different inner diameters, which is used for reducing-diameter connection of pipe fittings to meet the demand differences of fluid transmission between different systems. The third connector and the connection part are connected through an arc-shaped channel, reducing fluid resistance and maintaining the smooth flow of materials inside the joint.

[0015] 2. The inner edge of the arc-shaped channel of this three-way reducing joint extends from the third inner end face of the third connector to the first inner end face of the first connector. The fluid near the pipe wall part of the joint close to the inner edge can flow between the first connector and the third connector along the inner edge of the arc-shaped channel, forming a direct flow of part of the materials between the first connector and the third connector, reducing the resistance of the fluid at the turning point and reducing the fluid dynamic loss.

[0016] 3. The arc-shaped channel of this three-way reducing joint has a circular cross-section. The mold corresponding to the arc-shaped channel and the molds corresponding to the first connector, the second connector and the third connector are designed separately. The mold corresponding to the arc-shaped channel can be removed from the first connector, the second connector or the third connector according to the actual situation, and the demolding is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of this three-way reducing joint;

[0018] Figure 2 is a schematic structural diagram of the first flow state of this three-way reducing joint;

[0019] Figure 3 is a schematic structural diagram of the second flow state of this three-way reducing joint.

[0020] In the figure: 1. First connector; 2. Second connector; 3. Third connector; 4. Connecting part; 5. Communicating space; 6. Arc-shaped channel; 11. First inner end face; 21. Second inner end face; 31. Third inner end face; 61. Inner edge; 611. First tangent line; 612. Second tangent line. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Refer to Figure 1 , a three-way reducing joint, including a first connector 1, a second connector 2 and a third connector 3. The first connector 1, the second connector 2 and the third connector 3 are connected through a connecting part 4. A communicating space 5 is arranged inside the connecting part 4. The first connector 1, the second connector 2 and the third connector 3 are integrally communicated at the communicating space 5, enhancing the integrity and sealing performance of the joint, reducing the risk of leakage, and at the same time simplifying the installation and maintenance process.

[0023] Furthermore, the connecting part 4 is coaxially arranged with the first connector 1 and the second connector 2. The axis of the third connector 3 is perpendicular to the axes of the connecting part 4, the first connector 1 and the second connector 2 respectively, forming a "T"-shaped structure in appearance. The inner diameter dimension of the first connector 1 is larger than the inner diameter dimension of the second connector 2, allowing for transitional connection between pipes of different diameters and meeting the demand differences for fluid transmission between different systems.

[0024] The communicating space 5 is in the shape of a first frustum of a cone, which is beneficial for the fluid to smoothly transition from the larger first connector 1 to the smaller second connector 2, reducing fluid resistance and turbulence, and can also increase the strength of the connecting part 4 to a certain extent and improve its pressure-bearing capacity. A first inner end face 11 is arranged at the connection between the first connector 1 and the connecting part 4, and a second inner end face 21 is arranged at the connection between the second connector 2 and the connecting part 4. The first end face of the communicating space 5 is located at the first inner end face 11, and the second end face of the communicating space 5 is located at the second inner end face 21.

[0025] Furthermore, the outer diameter of the first end face of the communicating space 5 is smaller than the inner diameter dimension of the first connector 1, and the outer diameter of the second end face of the communicating space 5 is smaller than the inner diameter dimension of the second connector 2, so as to form an internal thickening part of the connecting part 4, improving the overall strength and stability of the three-way joint, enabling the joint to withstand higher-pressure or high-flow fluids.

[0026] The outer wall of the first connector 1 is cylindrical. The connecting portion 4 and the outer wall of the second connector 2 are combined to form a second frustum shape. The large-sized end face of the second frustum shape is connected to the first connector 1. The outer diameter of the large-sized end face of the second frustum shape is equal to the outer diameter of the first connector 1, forming a smooth outer shape of this connector. Compared with the cylindrical connector outer shape, this structure can save materials.

[0027] Reference Figure 1 , the interior of the third connector 3 is communicated with the communication space 5 through the arc-shaped channel 6, and the arc-shaped channel 6 penetrates through the connecting portion 4. A third inner end face 31 is provided at the connection between the third connector 3 and the connecting portion 4. The inner edge 61 of the arc-shaped channel 6 extends from the third inner end face 31 of the third connector 3 to the first inner end face 11 of the first connector 1, reducing the resistance and eddy current when the fluid converts in the arc-shaped channel 6, and facilitating the fluid to flow more smoothly in the arc-shaped channel 6 and the interior of the third connector 3.

[0028] Furthermore, the radial cross-section of the arc-shaped channel 6 is circular, and the diameter size of the circle is smaller than the inner diameter size of the third connector 3, facilitating the demolding of the mold corresponding to the arc-shaped channel 6 at the third connector 3. In this embodiment, the mold corresponding to the arc-shaped channel 6 can be removed from the first connector 1, the second connector 2 or the third connector 3 according to the actual situation.

[0029] In this embodiment, the central axis of the radial cross-section of the arc-shaped channel 6 intersects with the axis of the third connector 3, which is used to keep the fluid flowing more smoothly in the arc-shaped channel 6 and the interior of the third connector 3.

[0030] Furthermore, the center O of the circle corresponding to the arc-shaped channel 6 is located at the midpoint of the intersection line of the plane where the third inner end face 31 is located and the plane where the first inner end face 11 is located. The inner edge 61 of the arc-shaped channel 6 passes through the edge of the first end face of the communication space 5. The central angle corresponding to the inner edge 61 of the arc-shaped channel 6 is 90°. The first tangent line 611 of the inner edge 61 close to the first connector 1 is parallel to the axis of the first connector 1, and the second tangent line 612 of the inner edge 61 close to the third connector 3 is parallel to the axis of the third connector 3, ensuring that the fluid can maintain a stable flow direction and flow rate when entering and leaving the arc-shaped channel, thereby improving the hydrodynamic performance of the entire connector. The inner edge 61 of the arc-shaped channel 6 can guide the fluid, and the fluid in the pipe wall part close to the inner edge 61 can flow between the first connector 1 and the third connector 3 along the inner edge 61 of the arc-shaped channel 6, forming a direct circulation of part of the material between the first connector 1 and the third connector 3, reducing the resistance of the fluid at the turning point and reducing the fluid dynamic loss.

[0031] The first connector 1, the second connector 2 and the third connector 3 are used to insert and connect pipe fittings. The first connector 1, the second connector 2 and the third connector 3 can be hot-melt connected to the corresponding pipe fittings to achieve the flow of fluid materials. The first inner end face 11, the second inner end face 21 and the third inner end face 31 are used for end limiting of the pipe fittings. Refer to Figure 2 and Figure 3 , the three-way reducing joint in this embodiment is mainly used to achieve the flow of materials from the first connector 1 to the second connector 2 and the third connector 3 or the flow of materials from the second connector 2 and the third connector 3 to the first connector 1.

[0032] This three-way reducing joint is produced by extrusion molding. During production, the internal mold filled in the joint includes a first mold corresponding to the first connector 1, a second mold corresponding to the second connector 2, a third mold corresponding to the third connector 3, a fourth mold corresponding to the communication space 5, and a fifth mold corresponding to the arc-shaped channel 6. The fourth mold and the first mold are fixedly connected as a whole, and the other molds are designed in a split manner. After molding, the first mold and the fourth mold, the second mold and the third mold are taken out, and then the fifth mold is taken out. The split-designed molds are convenient for demolding.

[0033] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A three-way reducer, comprising a first connector, a second connector and a third connector, wherein the first connector, the second connector and the third connector are connected via a connecting portion, wherein the connecting portion is coaxially arranged with the first connector and the second connector, wherein the axis of the third connector is respectively perpendicular to the axes of the connecting portion, the first connector and the second connector, wherein a connecting space is arranged inside the connecting portion, wherein the first connector, the second connector and the third connector are integrally connected at the connecting space, and wherein: The inner diameter of the first connecting head is larger than the inner diameter of the second connecting head, the connecting space is a first truncated cone, the interior of the third connecting head is connected to the connecting space through an arc channel, the arc channel runs through the connecting part, the inner edge of the arc channel extends from the third inner end face of the third connecting head to the first inner end face of the first connecting head, the first tangent of the inner edge of the arc channel close to one end of the first connecting head is parallel to the axis of the first connecting head, and the second tangent of the inner edge of the arc channel close to one end of the third connecting head is parallel to the axis of the third connecting head.

2. The three-way reducer according to claim 1, characterized in that: The radial cross section of the arc-shaped channel is circular, and the diameter of the circle is smaller than the inner diameter of the third connector.

3. The three-way reducer according to claim 2, characterized in that: The central axis of the radial cross section of the arc-shaped channel intersects with the axis of the third connector.

4. The three-way reducer according to claim 3, characterized in that: The center of the arc corresponding to the arc-shaped channel is located at the midpoint of the intersection line of the plane where the third inner end surface is located and the plane where the first inner end surface is located, and the inner edge of the arc-shaped channel passes through the first end surface edge of the connection space.

5. The three-way reducer according to claim 4, characterized in that: The central angle corresponding to the inner edge of the arc-shaped channel is 90°.

6. The three-way reducer according to any one of claims 1 to 5, characterized in that: The inner diameter of the connecting space and the connecting end of the first connector is smaller than the inner diameter of the first connector, and the inner diameter of the connecting space and the connecting end of the second connector is smaller than the inner diameter of the second connector, so as to form an internal thickened portion of the connecting part.

7. The three-way reducer according to claim 6, characterized in that: The outer wall of the first connector is cylindrical, the connecting portion and the outer wall of the second connector are combined to form a second truncated cone, and the large-sized end surface of the second truncated cone is connected to the first connector.

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