Precise adjustment balance valve

Abstract

The utility model relates to the technical field of valves, in particular to an accurate adjustment balance valve which comprises a hollow valve body with two open ends, a water inlet pipe and a water outlet pipe are sleeved at two ends of the valve body respectively, and a valve ball located in the valve body is rotatably arranged between the water inlet pipe and the water outlet pipe. A plurality of adjusting round holes with different hole diameters are formed in the valve ball in the circumferential direction at intervals. A water outlet hole is formed in the bottom of the valve ball, a valve rod is fixedly connected to the top of the valve ball, and one end of the valve rod extends out of the valve body and is rotationally connected with the valve body; a plurality of water through holes are formed in the circumference of the water outlet pipe at intervals; sealing structures are arranged at the ends, close to the valve ball, of the water inlet pipe and the water outlet pipe. According to the utility model, the flow can be quickly and accurately adjusted, and the required flow can be adjusted without the help of a flow meter; and meanwhile, the phenomenon that the balance valve is blocked by water scales or impurities can be effectively avoided, and therefore pipe network flow unbalance caused by heat supply pipeline flow change is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a precision regulating balancing valve. Background Art

[0002] Winter heating network heat energy refers to the heat energy transmitted through the heating network system, which is mainly used to meet winter indoor heating needs. The heating network system is usually composed of three parts: heat source, heat network and heat users. At present, the heat energy of the winter heating network cannot be accurately regulated or the balancing system is unstable after regulation. The balancing valves are divided into butterfly valves, stop valves, V-type ball valves, etc. The balancing valve can basically adjust the required flow by cooperating with the flow meter, but it must be adjusted with the help of the flow meter, which cannot accurately adjust its flow and is time-consuming. At the same time, due to the presence of scale and debris in the heating pipes, after a period of use, the balancing valve plate and valve body of the balancing valve are easily blocked by scale or debris, causing the flow of the heating pipe to change, thereby disrupting the balance of the entire pipe network. Summary of the Invention

[0003] In order to solve the problems that the existing regulating balancing valves are difficult to accurately adjust the flow and are prone to clogging, the utility model provides a precise regulating balancing valve, which can quickly and accurately adjust the flow and no longer requires the use of a flow meter to adjust the required flow; at the same time, it can also effectively avoid the phenomenon of scale or debris clogging the balancing valve, thereby avoiding changes in the flow of the heating pipeline and causing imbalance in the pipeline network flow.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a precise adjustment balancing valve, comprising a valve body which is hollow inside and open at both ends, wherein the two ends of the valve body are respectively provided with an inlet pipe and an outlet pipe, and a valve ball located inside the valve body is rotatably arranged between the inlet pipe and the outlet pipe, and the flow rate can be precisely adjusted under the action of the valve ball.

[0005] The valve ball is a hollow, spherical structure with multiple circular adjustment holes of varying sizes spaced circumferentially. A water outlet is located at the bottom of the ball, and a valve stem is fixedly connected to the top of the ball. One end of the stem extends outside the valve body and is rotatably connected to the body. Rotating the stem drives the valve ball inside the body, changing the corresponding adjustment hole in the water inlet pipe. These multiple adjustment holes have varying diameters, enabling rapid and precise flow control.

[0006] The outlet pipe is circumferentially provided with multiple water holes at intervals. The inlet and outlet pipes are each equipped with a sealing structure at their ends near the valve ball. Water flows through the outlet holes at the bottom of the valve ball into the valve body and then into the outlet pipe through the water holes. The sealing structure seals the inlet and outlet pipes against the valve ball.

[0007] Furthermore, the water inlet pipe, the water outlet pipe, and the space between the valve ball and the valve body form a water flow cavity; the valve ball is connected to the water flow cavity through the water outlet hole, and the water outlet pipe is connected to the water flow cavity through the water through hole. After entering the valve ball, water can flow into the water flow cavity through the water outlet hole and then into the water outlet pipe through the water through hole.

[0008] Furthermore, a valve stem hole is formed on the top of the valve body, and one end of the valve stem extends through the valve stem hole to the outside of the valve body. The valve stem hole facilitates the valve stem to extend to the outside of the valve body and facilitates the valve stem to drive the valve ball to rotate inside the valve body.

[0009] Furthermore, the diameters of the water inlet pipe and the water outlet pipe at the ends close to the valve ball are smaller than the diameters at the ends away from the valve ball; the diameters of the water inlet pipe and the water outlet pipe at the ends close to the valve ball are smaller than the diameter of the valve ball, the purpose of which is to seal the water inlet pipe and the water outlet pipe and the valve ball through the sealing structure.

[0010] Furthermore, the inlet and outlet pipes are each provided with a step on the inner side of their ends. The sealing structure is located on the step and comprises, from the inside out, a stainless steel flat washer, a spring, a bracket, and a sealing washer. The spring is located between the stainless steel flat washer and the bracket, and the sealing washer is sleeved onto the bracket. The step provides a mounting location for the sealing structure. After the sealing washer wears out over time, the spring, stainless steel flat washer, and bracket ensure that the sealing washer maintains contact with the valve ball.

[0011] Furthermore, the sealing gasket contacts the valve ball, and a circular groove is formed on the outer side of the sealing gasket, and an O-ring is embedded in the inner side of the circular groove. The circular groove provides an installation position for the O-ring, and the O-ring performs a soft seal between the sealing gasket and the water inlet pipe and the water outlet pipe.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model has a reasonable structure and good use effect. It can accurately adjust the required flow rate and no longer needs to rely on a flow meter to adjust the required flow rate. The time spent on adjusting the flow rate is short, thereby saving the time for adjusting the flow balance of the pipeline network; at the same time, it can effectively avoid the phenomenon of scale or debris clogging the balancing valve, thereby achieving the effect of avoiding changes in the flow of the heating pipeline and causing imbalance in the flow of the pipeline network.

[0014] The utility model drives the valve ball to rotate inside the valve body by rotating the valve stem, so that the water inlet pipe corresponds to the regulating circular holes of different apertures, thereby achieving the effect of regulating the flow. The aperture sizes of the multiple regulating circular holes are different, and the aperture of each regulating circular hole is constant, thereby achieving the effect of accurately regulating the flow; the regulating circular holes are circular channels, making it difficult for scale or debris to clog the valve ball, thereby achieving the effect of preventing scale or debris from clogging the balancing valve, shortening the time used for regulating and balancing the flow of the pipeline network, and extending the service life.

[0015] The sealing structure of the utility model can prevent water from directly entering the water flow cavity from the water inlet pipe or directly entering the water flow cavity from the water flow cavity, so as to achieve the purpose of accurately adjusting the flow rate; the stainless steel flat washer increases the sealing area of ​​the water inlet pipe and the water outlet pipe, and the bracket plays the role of installing the sealing gasket. The sealing gaskets of the two sealing structures respectively seal the water inlet pipe and the water outlet pipe and the ball valve, and the O-rings of the two sealing structures respectively perform soft sealing on the water inlet pipe and the water outlet pipe and the sealing gasket; after the sealing gasket is worn out after long-term use, the cooperation of the spring, the stainless steel flat washer and the bracket can make the sealing gasket continue to contact the valve ball to ensure the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a precision regulating balancing valve of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0018] The numbers in the accompanying drawings are: 1 is the valve body, 2 is the water inlet pipe, 3 is the water outlet pipe, 4 is the water hole, 5 is the valve ball, 6 is the valve stem, 7 is the adjusting circular hole, 8 is the water outlet hole, 9 is the water flow cavity, 10 is the step, 11 is the stainless steel flat washer, 12 is the spring, 13 is the bracket, 14 is the sealing gasket, 15 is the circular groove, and 16 is the O-ring. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1 and 2 As shown, a precision regulating balancing valve comprises a valve body 1 having a hollow interior and open ends. An inlet pipe 2 and an outlet pipe 3 are respectively sleeved at each end of the valve body 1. A valve ball 5 is rotatably disposed between the inlet pipe 2 and the outlet pipe 3 and is located within the valve body 1. In this embodiment, one end of each of the inlet pipe 2 and the outlet pipe 3 is sleeved within the valve body 1. Both the inlet pipe 2 and the outlet pipe 3 are tightly and fixedly connected to the valve body 1. The inlet pipe 2 serves as the water inlet, and the outlet pipe 3 serves as the water outlet. The valve ball 5 is located in the middle of the valve body 1, and the valve ball 5 is used to regulate the water flow.

[0021] The valve ball 5 is a spherical structure with a hollow interior. Multiple circular adjustment holes 7 of varying sizes are spaced circumferentially on the valve ball 5. A water outlet 8 is formed at the bottom of the valve ball 5. A valve stem 6 is fixedly connected to the top of the valve ball 5. One end of the valve stem 6 extends to the exterior of the valve body 1 and is rotatably connected to the valve body 1. In this embodiment, the multiple circular adjustment holes 7 have varying sizes, and each circular adjustment hole 7 has a constant diameter. The valve stem 6 drives the valve ball 5 to rotate within the valve body 1, allowing the water inlet pipe 2 to correspond to the circular adjustment holes 7 of varying sizes, achieving precise flow control. A sealing ring can be installed at the connection between the valve stem 7 and the valve body 1 to provide a seal and prevent water from leaking out of the connection between the valve stem 7 and the valve body 1.

[0022] The outlet pipe 3 is provided with a plurality of water holes 4 at intervals around the circumference; the water inlet pipe 2 and the outlet pipe 3 are both provided with a sealing structure at one end near the valve ball 5. In this embodiment, water flows into the valve ball 5 through the water inlet pipe 2 and the regulating circular hole 7, and then flows into the valve body 1 through the water outlet hole 8 at the bottom of the valve ball 5, and then flows into the outlet pipe 3 through the water holes 4. When one regulating circular hole 7 corresponds to the water inlet pipe 2, the other regulating circular holes 7 do not correspond to the water outlet pipe 3, and the water flowing into the valve ball 5 can also enter the valve body 1 through the other regulating circular holes 7. The sealing structure plays a sealing role, and its purpose is to prevent water from directly entering the valve body 1 from the water inlet pipe 2 or directly entering the outlet pipe 3 from the valve body 1.

[0023] The space between the water inlet pipe 2, the water outlet pipe 3, the valve ball 5, and the valve body 1 forms a water flow cavity 9. The valve ball 5 communicates with the water flow cavity 9 via the water outlet hole 8, and the water outlet pipe 3 communicates with the water flow cavity 9 via the water through hole 4. In this embodiment, water flows into the valve ball 5 through the water inlet pipe 2 and the regulating hole 7, and then flows into the water flow cavity 9 through the water outlet hole 8 at the bottom of the valve ball 5.

[0024] A valve stem hole is formed at the top of the valve body 1, through which one end of the valve stem 6 extends to the outside of the valve body 1. In this embodiment, a sealing ring is installed at the valve stem hole, and the valve stem 6 facilitates the rotation of the valve ball 5 inside the valve body 1.

[0025] The diameters of the water inlet pipe 2 and the water outlet pipe 3 at the ends close to the valve ball 5 are both smaller than the diameters at the ends away from the valve ball 5; the diameters of the water inlet pipe 2 and the water outlet pipe 3 at the ends close to the valve ball 5 are both smaller than the diameter of the valve ball 5, the purpose of which is to facilitate the sealing structure to seal the two.

[0026] A step 10 is provided on the inner side of the end of the water inlet pipe 2 and the water outlet pipe 3. The sealing structure is provided at the step 10. The sealing structure includes a stainless steel flat washer 11, a spring 12, a bracket 13 and a sealing gasket 14 arranged in sequence from the inside to the outside. The spring 12 is located between the stainless steel flat washer 11 and the bracket 13, and the sealing gasket 14 is sleeved on the bracket 13. In this embodiment, the step 10 provides an installation position for the sealing structure, the inner diameter of the stainless steel flat gasket 11 is larger than the inner diameter of the end of the water inlet pipe 2 and the water outlet pipe 3, and the stainless steel flat gasket 11 increases the sealing area of ​​the water inlet pipe 2 and the water outlet pipe 3; the bracket 13 is a stainless steel bracket, and the sealing gasket 14 is mounted on the bracket 13, and the bracket 13 plays the role of fixing the sealing gasket 14. The sealing gasket 14 adopts a polytetrafluoroethylene sealing ring, and the sealing gaskets 14 of the two sealing structures respectively seal the water inlet pipe 2 and the ball valve 5, and the water outlet pipe 3 and the ball valve 5; wherein the spring 12 cooperates with the bracket 13 and the stainless steel flat gasket 11, so that the sealing gasket 14 can continue to be in close contact with the ball valve 5. When the sealing gasket 14 is worn after long-term use, the bracket 13 moves outward under the elastic force of the spring 12, so that the sealing gasket 14 is in close contact with the ball valve 5, thereby playing a maintenance-free role.

[0027] The sealing gasket 14 contacts the valve ball 5. A circular groove 15 is formed on the outside of the sealing gasket 14, and an O-ring 16 is embedded in the interior of the circular groove 15. In this embodiment, the circular groove 15 is annular in structure and provides a mounting position for the O-ring 16. The O-rings 16 in the two sealing structures respectively provide a soft seal between the sealing gasket 16 and the water inlet pipe 2, and between the sealing gasket 16 and the water outlet pipe 3.

[0028] The working principle of the present invention is as follows: when it is necessary to adjust the flow of the heating network and the flow of the balancing valve, the staff can rotate the valve stem 6, and the rotation of the valve stem 6 drives the ball valve 5 to rotate inside the valve body 1, and the adjusting hole 7 of the required aperture size is made to correspond to the water inlet pipe 2 according to the required flow, so as to achieve the purpose of accurately adjusting the flow; wherein the water flows into the ball valve 5 through the water inlet pipe 2 and the adjusting hole 7, and the water flows into the water flow cavity 9 through the water outlet hole 8 and other adjusting holes 7 at the bottom of the ball valve 5, and then the water flows into the water outlet pipe 3 through multiple water holes 4, thereby achieving the effect of adjusting the flow of the balancing valve.

[0029] The embodiments described above are only preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, any equivalent changes or modifications made according to the technical solutions described in the patent scope of the utility model should be included in the scope of the patent application of the utility model.

Claims

1. A precision regulating balancing valve, characterized in that: It comprises a valve body (1) which is hollow inside and open at both ends, wherein a water inlet pipe (2) and a water outlet pipe (3) are respectively sleeved on both ends of the valve body (1), and a valve ball (5) located inside the valve body (1) is rotatably arranged between the water inlet pipe (2) and the water outlet pipe (3); The valve ball (5) is a spherical structure with a hollow interior, and a plurality of adjusting circular holes (7) with different apertures are arranged at intervals along the circumferential direction on the valve ball (5); a water outlet hole (8) is provided at the bottom of the valve ball (5), and a valve stem (6) is fixedly connected to the top of the valve ball (5), and one end of the valve stem (6) extends to the outside of the valve body (1) and is rotatably connected to the valve body (1); A plurality of water holes (4) are spaced apart on the circumference of the water outlet pipe (3); and a sealing structure is provided at one end of the water inlet pipe (2) and the water outlet pipe (3) close to the valve ball (5).

2. A precise regulating balancing valve according to claim 1, characterized in that: The water inlet pipe (2), the water outlet pipe (3), the valve ball (5) and the valve body (1) form a water flow cavity (9); the valve ball (5) is connected to the water flow cavity (9) through the water outlet hole (8), and the water outlet pipe (3) is connected to the water flow cavity (9) through the water through hole (4).

3. The precise regulating balancing valve according to claim 1, characterized in that: A valve stem hole is provided at the top of the valve body (1), and one end of the valve stem (6) passes through the valve stem hole and extends to the outside of the valve body (1).

4. The precise regulating balancing valve according to claim 1, characterized in that: The diameters of the water inlet pipe (2) and the water outlet pipe (3) at the ends close to the valve ball (5) are both smaller than the diameters of the ends away from the valve ball (5); the diameters of the water inlet pipe (2) and the water outlet pipe (3) at the ends close to the valve ball (5) are both smaller than the diameter of the valve ball (5).

5. The precise regulating balancing valve according to claim 4, characterized in that: A step (10) is provided on the inner side of the end of each of the water inlet pipe (2) and the water outlet pipe (3). The sealing structure is provided at the step (10). The sealing structure comprises a stainless steel flat washer (11), a spring (12), a bracket (13) and a sealing washer (14) which are arranged in sequence from the inside to the outside. The spring (12) is located between the stainless steel flat washer (11) and the bracket (13), and the sealing washer (14) is sleeved on the bracket (13).

6. A precise regulating balancing valve according to claim 5, characterized in that: The sealing gasket (14) is in contact with the valve ball (5), and a circular groove (15) is provided on the outer side of the sealing gasket (14), and an O-ring (16) is embedded in the inner side of the circular groove (15).

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