Intelligent control valve

Abstract

The utility model provides an intelligent control valve, which is applied to the technical field of control valves, and adopts the technical scheme that the intelligent control valve comprises a valve body, a ball valve core movably arranged in the valve body, valve seats arranged on the valve body on two sides of the ball valve core, and sealing rings arranged between the valve seats and the valve body; a mounting seat is fixedly arranged at the top of the valve body, a valve rod fixedly connected with the ball valve element is rotationally connected to the mounting seat, and an executing mechanism for driving the valve rod to rotate is connected to the valve rod; a liquid inlet section and a liquid outlet section are respectively arranged on the valve body on two sides of the ball valve core; a baffle plate is fixedly arranged in the liquid outlet section, and a plurality of liquid outlet holes are formed in the baffle plate; the utility model has the technical effects that the regulating performance of the valve is improved, the valve is easy to open and use, the flushing to a pipeline is reduced, and the use safety and the service life are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of control valves, in particular to an intelligent control valve. Background Art

[0002] Fossil energy is the foundation of modern industry, especially gasoline, diesel, and liquefied gas, which are the lifeblood of modern operation. They are therefore known as soft gold. Their wide range of uses is self-explanatory. During their transportation, storage, loading and unloading, valves must meet the requirements of two-way sealing, frequent opening and closing, and adjustment.

[0003] At present, the Chinese utility model with publication number CN218954089U discloses a forged steel pneumatic automatic closing hard-seal floating ball valve, including a valve structure, a lower sealing section and an upper sealing section. The valve structure includes a valve body, a valve cover and a ball. The valve body and the valve cover are fixedly connected by mounting nuts and mounting studs. A left metal valve seat and a right metal valve seat are respectively provided on both sides of the ball, and the top of the ball is connected to the bottom end of the valve stem; the lower sealing section includes a valve seat spring, a No. 5 O-ring and a wound graphite gasket. The valve seat spring is arranged between the valve cover and the left metal valve seat. The connection between the valve cover and the valve body is sealed with a wound graphite gasket and a No. 5 O-ring; the upper sealing section is located between the valve stem and the valve body.

[0004] Due to the characteristics of minimum throttling gap and maximum flow rate, when existing ball valves are used with a small opening, they are prone to cause serious erosion of the inner wall of the pipeline behind the valve, thereby affecting the service life of the valve. Utility Model Content

[0005] The purpose of the utility model is to provide an intelligent control valve, which has the advantages of improving valve adjustment performance, easy opening and use, while reducing scouring of pipelines, ensuring safety in use and service life.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides the following technical solutions:

[0007] An intelligent control valve comprises a valve body, a spherical valve core movably arranged in the valve body, valve seats are arranged on the valve body on both sides of the spherical valve core, and a sealing ring is arranged between the valve seat and the valve body; a mounting seat is fixedly arranged on the outside of the valve body, a valve stem fixedly connected to the spherical valve core is rotatably connected to the mounting seat, and an actuator for driving the valve stem to rotate is connected to the valve stem; a liquid inlet section and a liquid outlet section are respectively provided on the valve body on both sides of the spherical valve core; a baffle is fixedly arranged in the liquid outlet section, and a plurality of liquid outlet holes are provided on the baffle.

[0008] In one embodiment of the present invention, a through hole is opened in the middle of the baffle, and a plurality of the liquid outlet holes are equidistantly arranged around the through hole.

[0009] In one embodiment of the present invention, a rotating shaft coaxially arranged with the valve stem is fixedly provided on one side of the spherical valve core, and the rotating shaft is rotatably connected to the valve body.

[0010] In one embodiment of the present invention, a worm gear box is provided between the valve stem and the actuator.

[0011] In one embodiment of the present invention, the actuator includes a sealed housing, a rotating shaft rotatably connected to the sealed housing, a main chamber disposed in the sealed housing, and two auxiliary chambers located on both sides of the main chamber; one end of the rotating shaft is connected to the turbine housing;

[0012] A first cylinder assembly is disposed in the main chamber, and a second cylinder assembly is disposed in the sub-chamber.

[0013] In one embodiment of the present invention, the first cylinder assembly includes a gear fixed on the rotating shaft, two racks located above and below the gear and meshing with the gear, and two main piston plates fixedly connected to the two racks and sliding horizontally back and forth in the main chamber; elastic members are connected between the two main piston plates and the side walls of the main chamber;

[0014] A first main air hole communicating with the main chamber is provided on the side wall of the sealing housing between the two main piston plates;

[0015] A second main air hole communicating with the main chamber is provided on the side wall of the sealing shell between the two piston plates and the corresponding side wall of the main chamber.

[0016] In one embodiment of the present invention, the second cylinder assembly includes a secondary piston plate that slides back and forth horizontally in the secondary chamber, and a valve position regulating rod fixed to the secondary piston plate;

[0017] An opening is provided on the side wall of the main chamber, and one end of the valve position regulating rod passes through the opening and enters the main chamber;

[0018] A first auxiliary air hole and a second auxiliary air hole communicating with the auxiliary chamber are respectively formed on the side walls of the sealing shell located on both sides of the auxiliary piston plate.

[0019] As described above, the intelligent control valve of the present utility model has the following beneficial effects:

[0020] 1. A baffle is installed at the liquid outlet section. When the valve is used with a small opening, the liquid falls directly onto the baffle, which blocks the liquid, thereby reducing the erosion of the liquid on the liquid outlet section wall, thereby increasing the service life of the valve body. In addition, the through holes and liquid outlet holes provided on the baffle facilitate liquid outflow without affecting the flow of the liquid, and also avoid turbulence.

[0021] 2. The first cylinder assembly is used to control the full opening or closing of the valve. When air is inflated into the main chamber through the first or second main air hole, the main piston plate slides left or right within the main chamber under the action of the air pressure difference, thereby driving the rack drive gear to rotate clockwise or counterclockwise, thereby controlling the full opening or closing of the valve.

[0022] The second cylinder assembly is used to adjust the valve opening and closing to the size required by the working conditions. When air is inflated into the secondary chamber through the first secondary air hole or the second secondary air hole, the secondary piston plate slides left or right in the secondary chamber under the action of the air pressure difference, thereby adjusting the length of the valve position adjustment rod entering the main chamber. The valve position adjustment rod is used to limit the sliding distance of the main piston plate, thereby adjusting the valve opening and closing to the position required by the working conditions, thereby improving the adjustment performance of the control valve.

[0023] 3. The first cylinder assembly and the second cylinder assembly work together to ensure that even if the second cylinder assembly fails, the first cylinder assembly can still ensure that the valve is fully opened and closed, ensuring the safe use of the control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 2 This is a cross-sectional view of a valve body according to an embodiment of the present utility model;

[0026] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0027] Figure 4 This is a schematic structural diagram of a baffle according to an embodiment of the present utility model;

[0028] Figure 5 It is a cross-sectional view of the actuator of the embodiment of the utility model.

[0029] Figure markings: 1. valve body; 2. spherical valve core; 3. valve seat; 4. sealing ring; 5. mounting seat; 6. valve stem; 7. actuator; 8. liquid inlet section; 9. liquid outlet section; 10. baffle; 11. liquid outlet hole; 12. through hole; 13. rotating shaft; 14. worm gear box; 71. sealing shell; 72. rotating shaft; 73. main chamber; 74. auxiliary chamber; 19. first cylinder assembly; 20. second cylinder assembly; 191. gear; 192. rack; 193. main piston plate; 194. elastic member; 195. first main air hole; 196. second main air hole; 201. auxiliary piston plate; 202. valve position adjusting rod; 203. first auxiliary air hole; 204. second auxiliary air hole. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0031] See also Figures 1 to 5 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.

[0032] See also Figures 1 to 4 The utility model provides an intelligent control valve, comprising a valve body 1 and a spherical valve core 2. The spherical valve core 2 is movably mounted in the valve body 1. Valve seats 3 are provided in the valve body 1 on both sides of the spherical valve core 2. A sealing ring 4 is embedded between the valve seat 3 and the valve body 1. The sealing ring 4 in this embodiment is an O-ring. A mounting seat 5 is fixed by bolts on the outer side of the valve body 1, wherein a valve stem 6 is rotatably connected to the mounting seat 5. One end of the valve stem 6 is fixedly connected to the spherical valve core 2, and the other end of the valve stem 6 is connected to an actuator 7 that drives the valve stem 6 to rotate.

[0033] A rotating shaft 13 coaxially arranged with the valve stem 6 is fixedly provided on one side of the spherical valve core 2, and the rotating shaft 13 is rotatably connected to the valve body 1;

[0034] A liquid inlet section 8 and a liquid outlet section 9 are respectively provided on the valve body 1 on both sides of the spherical valve core 2; a baffle 10 is fixedly provided in the liquid outlet section 9, and a circular through hole 12 is opened in the middle of the baffle 10, and a number of liquid outlet holes 11 are equidistantly provided on the baffle 10 located around the through hole 12. In this embodiment, 8 liquid outlet holes 11 are provided on the baffle 10; since ball valves are prone to cause serious erosion of the inner wall of the liquid outlet section 9 when used with a small opening, affecting the service life of the valve; therefore, a baffle 10 is provided in the liquid outlet section 9, and when the valve is used with a small opening, the liquid falls directly onto the baffle 10, and the baffle 10 is used to block the liquid, thereby reducing the erosion of the liquid on the wall of the liquid outlet section 9, thereby improving the service life of the valve body 1; and the through holes 12 and the liquid outlet holes 11 provided on the baffle 10 facilitate the outflow of liquid, do not affect the flow of liquid, and also avoid the generation of turbulence.

[0035] See also Figure 5 A worm gear box 14 is provided between the valve stem 6 and the actuator 7. The actuator 7 includes a sealed housing 71, a rotating shaft 72, a main chamber 73, two auxiliary chambers 74, a first cylinder assembly 19, and two second cylinder assemblies 20;

[0036] The rotating shaft 72 is rotatably connected to the sealed housing 71, and one end of the rotating shaft 72 is connected to the turbine box;

[0037] The main chamber 73 and the two sub-chambers 74 are both disposed within the sealed housing 71, wherein the main chamber 73 is disposed in the middle of the sealed housing 71, and the two sub-chambers 74 are disposed on either side of the main chamber 73. The first cylinder assembly 19 is disposed within the main chamber 73, and the two second cylinder assemblies 20 are disposed within the two sub-chambers 74. The first cylinder assembly 19 is used to control the full opening or closing of the valve; the second cylinder assembly 20 is used to adjust the valve opening and closing to the required degree of the working condition.

[0038] The first cylinder assembly 19 includes a gear 191 fixed to the rotating shaft 72, two racks 192 respectively located above and below the gear 191 and meshingly connected to the gear 191, and two main piston plates 193; the two main piston plates 193 are respectively integrally connected to the two racks 192, and the two main piston plates 193 are horizontally reciprocatingly slidably arranged in the main chamber 73. The two main piston plates 193 are connected to an elastic member 194 on the side away from the rack 192, and the other end of the elastic member 194 is connected to the side wall of the main chamber 73. The elastic member 194 in this embodiment is a spring;

[0039] A first main air hole 195 communicating with the main chamber 73 is formed on the side wall of the sealed housing 71 between the two main piston plates 193; a second main air hole 196 communicating with the main chamber 73 is formed on the side wall of the sealed housing 71 between the two piston plates and the corresponding side walls of the main chamber 73;

[0040] When air is inflated into the main chamber 73 through the first main air hole 195 or the second main air hole 196, the main piston plate 193 slides to the left or right in the main chamber 73 under the action of the air pressure difference, thereby driving the rack 192 to drive the gear 191 to rotate clockwise or counterclockwise, thereby achieving full opening or full closing of the control valve.

[0041] See also Figure 5 The second cylinder assembly 20 includes a secondary piston plate 201 that slides horizontally back and forth in the secondary chamber 74, and a valve position adjustment rod 202 fixed to the secondary piston plate 201; the valve position adjustment rod 202 is fixed to the middle of the secondary piston plate 201, wherein the valve position adjustment rod 202 is perpendicular to the main piston plate 193;

[0042] An opening is formed on the side wall of the main chamber 73, and one end of the valve position adjustment rod 202 passes through the opening and enters the main chamber 73;

[0043] A first auxiliary air hole 203 and a second auxiliary air hole 204 communicating with the auxiliary chamber 74 are respectively formed on the side walls of the sealing housing 71 on both sides of the auxiliary piston plate 201;

[0044] When air is inflated into the sub-chamber 74 through the first sub-air hole 203 or the second sub-air hole 204, the sub-piston plate 201 slides to the left or right in the sub-chamber 74 under the action of the air pressure difference, thereby adjusting the length of the valve position adjustment rod 202 entering the main chamber 73. The valve position adjustment rod 202 is used to limit the sliding distance of the main piston plate 193, thereby adjusting the valve switch to the position required by the working conditions.

[0045] In summary, the present invention improves valve adjustment performance, facilitates opening and operation, reduces erosion of the pipeline, and ensures safety and service life. Therefore, the present invention effectively overcomes various shortcomings of the prior art and has high industrial application value.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. An intelligent control valve, comprising a valve body (1), a spherical valve core (2) movably arranged in the valve body (1), valve seats (3) being arranged on the valve body (1) on both sides of the spherical valve core (2), and a sealing ring (4) being arranged between the valve seat (3) and the valve body (1); a mounting seat (5) being fixedly arranged on the outside of the valve body (1), a valve stem (6) fixedly connected to the spherical valve core (2) being rotatably connected to the mounting seat (5), and an actuator (7) for driving the valve stem (6) to rotate being connected to the valve stem (6); a liquid inlet section (8) and a liquid outlet section (9) being respectively arranged on the valve body (1) on both sides of the spherical valve core (2); and characterized in that: A baffle (10) is fixedly arranged in the liquid outlet section (9), and a plurality of liquid outlet holes (11) are arranged on the baffle (10).

2. The intelligent control valve according to claim 1, characterized in that: A through hole (12) is provided in the middle of the baffle (10), and a plurality of liquid outlet holes (11) are arranged at equal intervals around the through hole (12).

3. The intelligent control valve according to claim 1, characterized in that: A rotating shaft (13) coaxially arranged with the valve stem (6) is fixedly provided on one side of the spherical valve core (2), and the rotating shaft (13) is rotatably connected to the valve body (1).

4. The intelligent control valve according to claim 1, characterized in that: A worm gear box (14) is provided between the valve stem (6) and the actuator (7).

5. The intelligent control valve according to claim 4, characterized in that: The actuator (7) comprises a sealed housing (71), a rotating shaft (72) rotatably connected to the sealed housing (71), a main chamber (73) disposed in the sealed housing (71), and two auxiliary chambers (74) respectively located on both sides of the main chamber (73); one end of the rotating shaft (72) is connected to a turbine housing; A first cylinder assembly (19) is disposed in the main chamber (73), and a second cylinder assembly (20) is disposed in the sub-chamber (74).

6. The intelligent control valve according to claim 5, characterized in that: The first cylinder assembly (19) comprises a gear (191) fixed on a rotating shaft (72), two racks (192) respectively located above and below the gear (191) and meshingly connected to the gear (191), and two main piston plates (193) respectively fixedly connected to the two racks (192) and capable of horizontally reciprocating sliding in the main chamber (73); elastic members (194) are connected between the two main piston plates (193) and the side walls of the main chamber (73); A first main air hole (195) communicating with the main chamber (73) is provided on the side wall of the sealing housing (71) between the two main piston plates (193); A second main air hole (196) communicating with the main chamber (73) is provided on the side wall of the sealing housing (71) between the two piston plates and the corresponding side wall of the main chamber (73).

7. The intelligent control valve according to claim 6, characterized in that: The second cylinder assembly (20) includes a secondary piston plate (201) that slides back and forth horizontally in the secondary chamber (74), and a valve position regulating rod (202) fixed on the secondary piston plate (201); An opening is provided on the side wall of the main chamber (73), and one end of the valve position regulating rod (202) passes through the opening and enters the main chamber (73); A first auxiliary air hole (203) and a second auxiliary air hole (204) communicating with the auxiliary chamber (74) are respectively provided on the side walls of the sealing shell (71) located on both sides of the auxiliary piston plate (201).

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