Steady flow tee joint for water distribution pipeline

Abstract

The utility model discloses a steady flow tee joint for a water distribution pipeline. The steady flow tee joint comprises a water inlet pipe, a first shunt pipe and a second shunt pipe, one end of the water inlet pipe is an open end, a connecting plate is fixedly arranged on the outer wall of the water inlet pipe around the open end, the other end of the water inlet pipe is a closed end, the closed end is of an arc structure, and the first flow dividing pipe and the second flow dividing pipe are coaxially and fixedly arranged at the two ends of the same diameter of the water inlet pipe in the same diameter mode. The water inlet pipe, the first flow dividing pipe and the second flow dividing pipe are of an approximately-cross-shaped structure. The water inlet pipe, the first flow dividing pipe and the second flow dividing pipe are communicated at the joint, a first arc wall is formed at the joint of the inner wall of the water inlet pipe and the inner wall of the first flow dividing pipe, a second arc wall is formed at the joint of the inner wall of the water inlet pipe and the inner wall of the second flow dividing pipe, and the radian of the first arc wall is the same as that of the second arc wall. The flow stabilizing tee joint for the water distribution pipeline can restrain boundary layer separation and turbulent flow generation and reduce on-way head loss.

Description

TECHNICAL FIELD

[0001] The utility model relates to water distribution pipeline technical field, concretely relates to a water distribution pipeline is with steady flow three ways. BACKGROUND

[0002] The plastic three-way pipe fitting widely used in the current water distribution pipeline system generally adopts the traditional T-shaped structure design, the structure is convenient for injection molding, but there is obvious fluid mechanics defect. When water flows through the three-way, the straight flow in the main pipeline generates 90° turning at the T-shaped branch, leading to the formation of strong boundary layer separation in the inside area of the projection line of the inner wall of the branch mouth, and further causing local turbulent effect. This unstable flow state increases the head loss along the way by 30%-50%, causing the system energy consumption to rise. At the same time, the pressure pulsation caused by the sudden change of fluid momentum can reach 1.5-2 times of the working pressure, leading to mechanical vibration of the pipeline system, and the effective value of the measured vibration acceleration exceeds 0.8g, forming periodic impact on the middle part of the three-way cross pipe. In long-term operation, this water hammer effect makes the internal pressure peak of the three-way exceed the design pressure by 120%, accelerating the material fatigue aging, and the actual service life is only 40%-60% of the theoretical value. The prior art attempts to improve the strength by locally thickening the pipe wall or adding reinforcing ribs, but it does not fundamentally solve the problem of fluid power imbalance. SUMMARY

[0003] Therefore, the utility model provides a water distribution pipeline is with steady flow three ways to be able to suppress boundary layer separation and turbulence generation, reduce head loss along the way.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A water distribution pipeline is with steady flow three ways, including water inlet pipe, first shunt pipe and second shunt pipe, one end of the water inlet pipe is open end, the outer wall of the water inlet pipe is fixed with connecting plate around the open end, the other end of the water inlet pipe is closed end, the closed end is circular arc structure, the first shunt pipe and the second shunt pipe are coaxial and fixed in the same diameter of the two ends of the water inlet pipe, so that the water inlet pipe, the first shunt pipe and the second shunt pipe are approximately cross-shaped structure, the inner wall of the water inlet pipe and the inner wall of the first shunt pipe form first circular arc wall at the junction, the inner wall of the water inlet pipe and the inner wall of the second shunt pipe form second circular arc wall at the junction, the first circular arc wall and the second circular arc wall have the same curvature.

[0006] To better realize the above-mentioned technical scheme, optionally, the first shunt pipe and the second shunt pipe are provided with first reinforcing ribs on the outer wall connected with the water inlet pipe.

[0007] Optionally, the connecting plate is provided with a second reinforcing rib in the circumferential direction of the outer wall of the water inlet pipe.

[0008] Optionally, the connecting plate is in the form of a circular arc that is adapted to the water distribution pipeline.

[0009] Optionally, the water inlet pipe, the first shunt pipe and the second shunt pipe are integrally formed by an integral molding process.

[0010] Optionally, the water outlet end of the first shunt pipe and the second shunt pipe are provided with an internal thread connection structure.

[0011] Optionally, the water inlet pipe is provided with a third reinforcing rib in the circumferential direction of the inner wall of the water inlet pipe.

[0012] Optionally, the closed end of the water inlet pipe is provided with a water hammer prevention mechanism.

[0013] Optionally, the water hammer prevention mechanism comprises a floating plate, a mounting plate and an elastic telescopic rod, the mounting plate is connected to the bottom of the closed end of the water inlet pipe, one end of the elastic telescopic rod is fixed to the center of the mounting plate, the other end is connected to the floating plate, and the floating plate and the inner wall of the closed end of the water inlet pipe form a sliding fit in the axial direction.

[0014] The utility model discloses a beneficial effect:

[0015] The utility model discloses a kind of water distribution pipeline with steady flow three-way, first pipe and second pipe adopt same inner diameter, under the condition of same pressure and pipe diameter, same water flow can be obtained, to ensure that the amount of spray from the water outlet end of first shunt pipe and second shunt pipe is consistent;In addition, water inlet pipe is transitioned with the circular arc wall of same radian with first shunt pipe and second shunt pipe respectively, so that water flow can keep relatively stable flow rate and pressure in the shunt process, reduce the pressure fluctuation and energy loss generated due to wall surface mutation.

[0016] The utility model discloses a kind of water distribution pipeline with steady flow three-way, when the pressure in water distribution pipeline suddenly increases, impact water pressure is directly acted on floating plate, floating plate moves towards the end of the closed end of water inlet pipe at this time, and drives elastic telescopic rod to compress, the impact energy generated by water hammer is absorbed by elastic telescopic rod and converted into elastic potential energy, so as to buffer the impact of water hammer pressure on three-way pipe.In the reduction of water pressure, floating plate restores to initial position under the reset action of elastic telescopic rod, so as to avoid water hammer phenomenon in waterway, so as to reduce the force of water pressure on three-way pipe, to improve the service life of three-way pipe, reduce damage probability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-dimensional schematic view of the utility model embodiment 1 water distribution pipeline with steady flow three-way;

[0018] Figure 2 is Figure 1 a top view of

[0019] Figure 3 is Figure 2 A-A sectional view in

[0020] Figure 4 is Figure 1 a bottom view of

[0021] Figure 5 is a sectional view of the water distribution pipeline flow stabilizing tee with waterproof hammer mechanism according to the second embodiment of the present application;

[0022] Figure 6 is a sectional view of the water inlet pipe in the water distribution pipeline flow stabilizing tee according to the second embodiment of the present application;

[0023] Reference signs:

[0024] water inlet pipe 10, open end 101, closed end 102, first circular arc wall 103, second circular arc wall 104, first reinforcing rib 105, second reinforcing rib 106, third reinforcing rib 107, guide straight-through groove 108, positioning ring groove 109, locking recess 110, first shunt pipe 20, second shunt pipe 30, connecting plate 40, connecting hole 401, floating plate 51, mounting plate 52, elastic telescopic rod 53, spring bead 54. DETAILED DESCRIPTION

[0025] The technical solutions of the present application are described in detail below in combination with the drawings and specific embodiments. Identical parts are denoted by identical reference signs.

[0026] Embodiment 1

[0027] Please refer to Figures 1 to 4The utility model discloses a kind of steady flow three-way pipes for distribution pipeline, including water inlet pipe 10, first shunt pipe 20 and second shunt pipe 30, one end of water inlet pipe 10 is open end 101, as the entrance of water flow, connection plate 40 is fixed on the outer wall of water inlet pipe 10 around water inlet end, this connection plate 40 is used to fix steady flow three-way pipe on distribution pipeline, the other end of water inlet pipe 10 is closed end 102, closed end 102 is circular arc structure, first shunt pipe 20 and second shunt pipe 30 are coaxially and fixedly arranged at the two ends of water inlet pipe 10 with same diameter, so that water inlet pipe 10, first shunt pipe 20 and second shunt pipe 30 are approximately cross-shaped structure, water inlet pipe 10, first shunt pipe 20 and second shunt pipe 30 are communicated at junction, the junction of the inner wall of water inlet pipe 10 and the inner wall of first shunt pipe 20 forms first circular arc wall 103, the junction of the inner wall of water inlet pipe 10 and the inner wall of second shunt pipe 30 forms second circular arc wall 104, the arc of first circular arc wall 103 and second circular arc wall 104 is same.

[0028] A kind of steady flow three-way pipe for distribution pipeline in the utility model embodiment, first pipe and second pipe adopt same inner diameter, according to flow continuity equation, under the condition of same pressure and pipe diameter, same water flow can be obtained, to ensure that the amount of water from first shunt pipe 20 and second shunt pipe 30 outlet is consistent;In addition, water inlet pipe 10 is transitioned with first shunt pipe 20 and second shunt pipe 30 using arc wall with same radian, so that water flow can maintain relatively stable flow rate and pressure in the process of shunting, reduce pressure fluctuation and energy loss caused by wall surface mutation.

[0029] In the embodiment of the utility model, first shunt pipe 20 and second shunt pipe 30 are circumferentially spaced apart from the outer wall connected to water inlet pipe 10, and first reinforcing rib 105 can be provided in 4-6 according to the outer diameter of first shunt pipe 20 and second shunt pipe 30.Under the action of water flow impact and pressure, the connection between first shunt pipe 20 and second shunt pipe 30 and water inlet pipe 10 will bear a large stress, and first reinforcing rib 105 can disperse part of the stress, further increase the strength of first shunt pipe 20 and second shunt pipe 30 at the connection with water inlet pipe 10, prevent structural damage caused by stress concentration.

[0030] In the embodiment of the utility model, second reinforcing rib 106 is spaced apart from the outer wall connected to water inlet pipe 10 in the circumferential direction, and each corner of connection plate 40 is provided with connecting hole 401, and the steady flow three-way pipe is fixed on the distribution pipeline by using screws passing through connecting hole 401 and embedded in the pre-installed hole of the distribution pipe, and second reinforcing rib 106 also plays a role in enhancing the strength of connection plate 40, so that it can better withstand external force when fixing the steady flow three-way pipe.Screw connection is a mature technology, easy to assemble and disassemble.

[0031] In the embodiment of the utility model, the connecting plate 40 is arc structure which is adapted to the distribution pipeline, adopting the structure can better fit the outer surface of the distribution pipeline, increase the contact area, improve the stability of connection.

[0032] In the embodiment of the utility model, the water inlet pipe 10, the first shunt pipe 20 and the second shunt pipe 30 are integrally formed structure, adopt integrally formed mechanism's steady flow tee joint, its strength is higher, can bear greater pressure and water flow impact, improve the reliability and service life of structure.

[0033] In the embodiment of the utility model, the water outlet end of the first shunt pipe 20 and the second shunt pipe 30 has internal thread connection structure, set up internal thread connection structure facilitates the water jet pipe through the threaded mode installation on the first shunt pipe 20 and the second shunt pipe 30.

[0034] In the embodiment of the utility model, the inner wall circumferential direction of the water inlet end of the water inlet pipe 10 is provided with the third reinforcing rib 107, the third reinforcing rib 107 can enhance the pipe wall strength of the water inlet end of the water inlet pipe 10, disperse the stress generated by water flow impact, prevent the water inlet end from being deformed or damaged due to long-term water flow impact, further improve the strength of the water inlet end of the water inlet pipe 10.

[0035] Embodiment 2

[0036] As shown in Figure 5 And Figure 6 The embodiment is further improved based on embodiment 1, and the improvement lies in that the closed end 102 of the water inlet pipe 10 is connected with a waterproof hammer mechanism.

[0037] Specifically, the waterproof hammer mechanism includes a floating plate 51, a mounting plate 52 and an elastic telescopic rod 53, the mounting plate 52 is connected to the bottom of the closed end 102 of the water inlet pipe 10, one end of the elastic telescopic rod 53 is fixedly arranged at the center of the mounting plate 52, the other end is connected with the floating plate 51, and the floating plate 51 is in sliding fit with the inner wall of the closed end 102 of the water inlet pipe 10 in the axial direction.

[0038] As shown in Figure 6 The inner wall of the closed end 102 of the water inlet pipe 10 is symmetrically provided with two guide through grooves 108 extending in the axial direction of the water inlet pipe 10 and a positioning ring groove 109 extending in the circumferential direction of the water inlet pipe 10, the positioning ring groove 109 is connected with the end portion of the guide through groove 108 away from the opening end of the water inlet pipe 10, at least two locking pits 110 are arranged in the positioning ring groove 109, and the circumferential outer wall of the mounting plate 52 is symmetrically embedded with spring beads 54 in the radial direction.

[0039] In the installation of the waterproof hammer mechanism, two spring balls 54 are first correspondingly clamped into two guide through grooves 108, and then the waterproof hammer mechanism is pushed along the length direction of the guide through grooves 108 to move to the position where the spring balls 54 enter the positioning ring grooves 109, and then the waterproof hammer mechanism is rotated until the spring balls 54 are clamped into the corresponding locking recesses 110, wherein the spring balls 54 are in a compressed state when cooperating with the guide through grooves 108 and the positioning ring grooves 109, and are in a reset state when cooperating with the locking recesses 110, the guide through grooves 108 provide axial guidance for the installation of the waterproof hammer mechanism, ensuring the accuracy of the installation position, and the cooperation of the positioning ring grooves 109 and the locking recesses 110 with the spring balls 54 can realize the circumferential positioning and fixing of the waterproof hammer mechanism, which is simple in structure and has little improvement on the structure of the closed end 102 of the water inlet pipe 10, and can ensure firm installation of the waterproof hammer mechanism without causing great influence on the original structure of the water inlet pipe 10.

[0040] In the embodiment, the elastic telescopic rod 53 is preferably a spring rod that can only axially extend and contract but cannot circumferentially rotate, and the spring rod can elastically deform under force and restore to the original state after the force disappears.

[0041] The stable flow tee joint for water distribution pipeline of the embodiment of the utility model, when the pressure in the water distribution pipeline suddenly increases, the impact water pressure directly acts on the floating plate 51, because the floating plate 51 and the mounting plate 52 are connected through the elastic telescopic rod 53, at this time the floating plate 51 moves to the direction of the end of the closed end 102 of the water inlet pipe 10 and drives the elastic telescopic rod 53 to compress, the impact energy generated by the water hammer is absorbed by the elastic telescopic rod 53 and converted into elastic potential energy, thereby buffering the impact of the water hammer pressure on the tee joint. After the water pressure decreases, the floating plate 51 restores to the initial position under the reset action of the elastic telescopic rod 53, so that the water hammer phenomenon is avoided in the waterway, thereby reducing the force of the water pressure on the tee joint, so as to improve the service life of the tee joint and reduce the damage probability.

[0042] The technical scheme of the utility model is described in detail in combination with specific embodiments, and the specific embodiments are used to help understand the idea of the utility model. The deduction and deformation of the skilled person in the art on the basis of the specific embodiments of the utility model also belong to the protection scope of the utility model.

Claims

1. A flow stabilizing tee for water distribution piping, characterized by The water inlet pipe (10), the first shunt pipe (20) and the second shunt pipe (30) are integrally formed into a whole structure. One end of the water inlet pipe (10) is an open end (101), and a connecting plate (40) is fixedly arranged on the outer wall of the water inlet pipe (10) around the open end. The other end of the water inlet pipe (10) is a closed end (102) in a circular arc structure. The first shunt pipe (20) and the second shunt pipe (30) are coaxially and fixedly arranged at two ends of the water inlet pipe (10) with the same diameter, so that the water inlet pipe (10), the first shunt pipe (20) and the second shunt pipe (30) are approximately in a cross shape. The water inlet pipe (10), the first shunt pipe (20) and the second shunt pipe (30) are communicated at the joint. The inner wall of the water inlet pipe (10) and the inner wall of the first shunt pipe (20) form a first circular arc wall (103) at the joint. The inner wall of the water inlet pipe (10) and the inner wall of the second shunt pipe (30) form a second circular arc wall (104) at the joint. The first circular arc wall (103) and the second circular arc wall (104) have the same curvature.

2. The flow stabilizing tee for water distribution lines according to claim 1, characterized in that The first shunt pipe (20) and the second shunt pipe (30) are provided with first reinforcing ribs (105) at intervals in the circumferential direction of the outer wall connected with the water inlet pipe (10).

3. The flow stabilizing tee for water distribution lines according to claim 1, characterized in that The connecting plate (40) is provided with second reinforcing ribs (106) at intervals in the circumferential direction of the outer wall connected with the water inlet pipe (10).

4. The flow stabilizing tee for water distribution lines according to claim 1, characterized in that The connecting plate (40) is in a circular arc structure matched with the water distribution pipeline.

5. The flow stabilizing tee fitting for water distribution lines of claim 1 wherein, The water inlet pipe (10), the first shunt pipe (20) and the second shunt pipe (30) are integrally formed into a whole structure.

6. The flow stabilizing tee for water distribution lines according to claim 1, wherein The water outlet end of the first shunt pipe (20) and the water outlet end of the second shunt pipe (30) are provided with internal thread connection structures.

7. The flow stabilizing tee fitting for water distribution lines of claim 1 wherein, The inner wall of the water inlet end of the water inlet pipe (10) is provided with third reinforcing ribs (107) at intervals in the circumferential direction.

8. The flow stabilizing tee for water distribution lines according to claim 1, wherein The closed end (102) of the water inlet pipe (10) is connected with a waterproof hammer mechanism.

9. The flow stabilizing tee for water distribution lines according to claim 8, characterized in that The waterproof hammer mechanism comprises a floating plate (51), a mounting plate (52) and an elastic telescopic rod (53). The mounting plate (52) is connected to the bottom of the closed end (102) of the water inlet pipe (10). One end of the elastic telescopic rod (53) is fixedly arranged at the center of the mounting plate (52), and the other end is connected with the floating plate (51). The floating plate (51) and the inner wall of the closed end (102) of the water inlet pipe (10) are in sliding fit in the axial direction.

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