Intelligent gas flow regulating valve

Abstract

The invention discloses an intelligent gas flow regulating valve, which belongs to the technical field of gas valves and comprises a valve body and a ball valve, the ball valve comprises a first-stage valve core and a second-stage valve core, the first-stage valve core and the valve body form an upper liquid storage cavity and a lower liquid storage cavity, a gas detector and a liquid level sensor are arranged in the cavities, a lubricating ring is arranged outside the second-stage valve core, and the valve body is provided with an upper rotating rod and a lower rotating rod. The valve body is provided with a liquid conveying device, an inner cavity and an outer cavity are formed in the second-stage valve element, the second-stage valve element is provided with a gas conveying hole communicated with the outer cavity, a baffle is rotationally connected into the outer cavity, the baffle and an annular plate in the inner cavity are in transmission through a gear, the annular plate is connected with a first reset spring, and the inner cavity is provided with a rectangular hole. The upper cavity is provided with a motor, the first-stage valve element is provided with a first liquid conveying hole communicating with the liquid storage cavity and the lower cavity, and the first-stage valve element is provided with a second liquid conveying hole communicating with the rectangular hole and the lower cavity. The sealing performance of the regulating valve can be improved, and opening and closing of the regulating valve can be automatically and manually controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of gas valves, and in particular to an intelligent gas flow regulating valve. Background Art

[0002] As a core component in the gas pipeline system, the gas regulating valve is usually used to control the flow, pressure and pipeline direction of the gas. During long-term use, the traditional gas regulating valve is prone to problems such as internal rotation of the valve and decreased sealing due to the increase in gas and the pressure generated during the flow. This not only affects the service life of the regulating valve, but also reduces the accuracy of the regulating flow and increases the risk of gas leakage. Especially in industrial and household gas systems, there are more and more safety problems.

[0003] Traditional regulating valves mainly rely on a single-layer sealing structure. Their sealing properties are easily affected by high pressure, high temperature and intermittent gas, and it is difficult to maintain a sealed state efficiently for a long time. Especially after the regulating valve has been used for a long time, the sealing performance is prone to decline, increasing the possibility of gas emissions. In addition, most traditional regulating valves cannot achieve automatic closing function when gas leaks occur, and need to rely on additional safety equipment or manual operation to close the valve. This design has a slow response speed when leaks occur. Summary of the invention

[0004] The purpose of the present invention is to improve the sealing performance of a regulating valve and to be able to automatically and manually control the opening and closing of the regulating valve.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an intelligent gas flow regulating valve, comprising a valve body and a ball valve, the ball valve comprising a primary valve core and a secondary valve core rotatably connected thereto, the primary valve core and the valve body forming two upper and lower liquid storage chambers, a gas detector and a liquid level sensor are installed in the liquid storage chamber, a lubricating ring is arranged outside the secondary valve core, the valve body is provided with two upper and lower rotating rods, the two rotating rods are inserted at the same time to control the rotation of the ball valve, and a liquid infusion device for conveying liquid to the liquid storage chamber is arranged on a pipeline on one side of the valve body;

[0006] An inner chamber and an outer chamber are provided inside the secondary valve core. The secondary valve core is provided with an air delivery hole connected to the outer chamber. A baffle is rotatably connected in the outer chamber. The baffle and the annular plate in the inner chamber are driven by gears. The annular plate is connected with a return spring 1. A rectangular hole is provided on the bottom wall of the inner chamber.

[0007] The first-stage valve core is provided with an upper chamber and a lower chamber. A motor is installed in the upper chamber. The motor drives the second-stage valve core to rotate through gears. An infusion hole 1 connecting the liquid storage chamber and the lower chamber is provided at the bottom of the first-stage valve core. The first-stage valve core is provided with an infusion hole 2 connecting the rectangular hole and the lower chamber.

[0008] As a further description of the above technical solution: the upper and lower sides of the valve body are fixed with cover plates by bolts, the cover plates are installed with limit plates by bolts, the two rotating rods are threaded through the limit plates, the threaded section of the upper rotating rod is longer than the threaded section of the lower rotating rod, the upper and lower sides of the first-level valve core penetrate the valve body and the cover plate, and the cover plate is provided with a lock for locking the first-level valve core.

[0009] As a further description of the above technical solution: an observation window for observing the liquid storage cavity is provided on the front of the valve body, a lubricating ring is fixedly connected to the inner cavity wall of the valve body, and the upper and lower sides of the lubricating ring extend to the liquid storage cavity and block the connection between the upper and lower liquid storage cavities.

[0010] As a further description of the above technical solution: the infusion device includes a liquid storage tank, which is installed on the pipes on both sides of the valve body through a connecting piece. The liquid storage tank is connected to the diverter valve installed on the connecting piece, and the diverter valve is connected to the upper and lower liquid storage chambers respectively through pipes.

[0011] As a further description of the above technical solution: a piston is installed inside the liquid storage tank, an electric push-pull rod penetrating the liquid storage tank is fixed on the top of the piston, and a liquid inlet pipe is provided on the top of the outer ring of the liquid storage tank.

[0012] As a further description of the above technical solution: the annular plate is rotatably connected to the inner wall of the inner chamber, the return spring is fixedly connected to the inner wall of the inner chamber, and the annular plate and the inner wall of the inner chamber form a liquid injection space.

[0013] As a further description of the above technical solution: a convex plate penetrating to the upper chamber is provided on the top of the secondary valve core, and the convex plate is provided with convex teeth meshing with the gear at the output end of the motor, and the motor has a self-locking function when the power is off.

[0014] As a further description of the above technical solution: the first-level valve core is provided with a cylindrical space which passes through from top to bottom, and the two rotating rods both pass through the cover plate and extend to the cylindrical space.

[0015] As a further description of the above technical solution: a sliding member that can slide up and down is clamped in the cylindrical space, the rotating rod below is fixed with a plug plate used in conjunction with the sliding member, and the sliding member is fixed with a plurality of return springs fixed to the inner wall of the cylindrical space.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The lubricating liquid is delivered to the liquid storage chamber through the infusion device to ensure that the ball valve is always in a lubricated state, reduce component wear, and increase the service life of the ball valve. When the gas leaks from the connection between the valve body and the valve cover, the airflow will pass through the liquid storage chamber and contact with the lubricating liquid to generate bubbles. The bubble generation and changes can be monitored through the observation window, so as to quickly identify gas leaks. The gas detector can also detect whether there is gas in the liquid storage chamber. At the same time, the liquid level sensor can detect the change of the lubricating liquid level to ensure that the lubricating liquid is replenished in time when the liquid level is lower than the set value. This design enhances the reliability of the system and helps prevent failures caused by insufficient lubrication.

[0018] 2. The lubricating liquid is transported to the lower liquid storage cavity through the infusion device. The lubricating liquid enters the lower chamber through the infusion hole 1, and then enters the inner chamber of the secondary valve core through the infusion hole 2 and the rectangular hole. With the continuous injection of the lubricating liquid, the annular plate is driven to rotate, and the rotation of the baffle is further driven by the gear transmission to achieve the sealing of the gas transmission hole and more detailed adjustment of the gas flow. The lubricating liquid not only extends the life of the components, but also gives the baffle a driving force to rotate, helping the baffle to achieve the sealing of the gas transmission hole.

[0019] 3. The motor drives the rotation of the secondary valve core, which connects to the pipes on both sides of the valve body through gas holes of different sizes, thereby realizing graded flow regulation. The system allows graded control of flow to meet diverse needs and improves the accuracy and flexibility of regulation. When a gas leak is detected, the motor will automatically drive the secondary valve core to rotate, automatically closing the gas hole to prevent further leakage. This automatic anti-leakage function improves safety and effectively reduces the risk of leakage.

[0020] 4. By rotating the secondary valve core, the gas delivery hole is rotated to the position of the lubrication ring to achieve sealing on the outside. At the same time, the lubricating liquid drives the baffle to rotate inside the secondary valve core, further closing the gas delivery hole from the inside. The internal and external double sealing structure improves the overall sealing performance, preventing external gas from entering or internal gas leakage, and is suitable for harsh environments such as high temperature and high pressure.

[0021] 5. When the motor fails, the user can insert two rotating rods to manually control the ball valve, and can manually deliver lubricating fluid to ensure that the opening and closing of the valve can still be smoothly controlled when the automatic function fails. In addition, the ball valve can only be manually rotated when the two rotating rods are inserted at the same time, which reduces the possibility of misoperation and avoids the risk of gas leakage caused by children accidentally rotating the gas valve, further improving the safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A front view of the present invention is shown;

[0023] Figure 2 A cross-sectional view of the present invention is shown;

[0024] Figure 3 The present invention is shown Figure 2 The enlarged view of point A in the middle;

[0025] Figure 4 A cross-sectional view of a ball valve of the present invention is shown;

[0026] Figure 5 A cross-sectional view of a primary valve core and a secondary valve core of the present invention is shown;

[0027] Figure 6 An exploded view of the ball valve of the present invention is shown;

[0028] Figure 7 A cross-sectional view of the secondary valve core of the present invention is shown;

[0029] Figure 8 A perspective view of the locking device of the present invention is shown;

[0030] Fig. 9 A perspective view of the present invention is shown.

[0031] Legend:

[0032] 10. Valve body; 11. Cover plate; 12. Limit plate; 13. Lock; 14. Observation window;

[0033] 20, ball valve; 21, primary valve core; 211, motor; 212, infusion hole 1; 213, infusion hole 2; 22, secondary valve core; 221, gas delivery hole; 222, baffle; 223, annular plate; 224, return spring 1; 225, rectangular hole; 226, convex plate; 227, convex teeth;

[0034] 30. Gas detector; 31. Liquid level sensor; 32. Lubricating ring; 33. Rotating rod; 34. Sliding part; 35. Insert plate; 36. Reset spring 2;

[0035] 40. Infusion device; 41. Liquid storage tank; 42. Connector; 43. Diverter valve; 44. Piston; 45. Electric push-pull rod; 46. Liquid inlet pipe;

[0036] 50. Liquid storage chamber; 51. Inner chamber; 52. Outer chamber; 53. Upper chamber; 54. Lower chamber; 55. Liquid injection space; 56. Columnar space. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 9 The present invention provides an intelligent gas flow regulating valve, including a valve body 10 and a ball valve 20. The valve body 10 is made of a high temperature resistant and corrosion resistant metal material. A cover plate 11 is fixedly connected to the upper and lower sides of the valve body 10 by bolts. Such a design facilitates the stability of the structure of the valve body 10, and can be easily disassembled and assembled, and is convenient for maintenance and replacement of internal components, thereby reducing maintenance costs.

[0039] The ball valve 20 includes a primary valve core 21 and a secondary valve core 22 rotatably connected thereto, that is, the secondary valve core 22 can rotate around the primary valve core 21. The ball valve 20 is located in the middle part of the inner cavity of the valve body 10 and forms two upper and lower liquid storage chambers 50 with the valve body 10. The upper and lower sides of the primary valve core 21 penetrate the valve body 10 and the cover plate 11. The primary valve core 21 can rotate in the valve body 10. The liquid storage chamber 50 is filled with lubricating liquid. The lubricating liquid in the liquid storage chamber 50 can ensure that the primary valve core 21 is always in a lubricated state, thereby improving the service life of the primary valve core 21.

[0040] A lubrication ring 32 is provided outside the secondary valve core 22, and the lubrication ring 32 is fixedly connected to the inner cavity wall of the valve body 10. The upper and lower sides of the lubrication ring 32 extend to the liquid storage cavity 50 and block the upper and lower liquid storage cavities 50 from being connected. On the one hand, the lubrication ring 32 ensures that the secondary valve core 22 is always lubricated during rotation to avoid wear caused by dry friction. On the other hand, the lubrication ring 32 separates the upper and lower liquid storage cavities 50 to ensure that the lubricating liquid exists independently in their respective cavities.

[0041] A gas detector 30 and a liquid level sensor 31 are provided in the liquid storage chamber 50. The gas detector 30 is used to detect whether there is gas in the liquid storage chamber 50. When gas is detected, an alarm signal is issued to remind the staff that there may be a leak. The liquid level sensor 31 is used to monitor the changes in the lubricating liquid level in the liquid storage chamber 50 and promptly remind to replenish the lubricating liquid. The gas detector 30 is packaged in a corrosion-resistant alloy or stainless steel shell to meet the requirements of the gas environment. The liquid level sensor 31 uses a high-temperature resistant sensing material to ensure that the accuracy is not affected in a long-term working environment.

[0042] When the gas leaks from the connection between the valve body 10 and the cover plate 11, it will pass through the liquid storage chamber 50. Bubbles will be generated after the gas contacts the lubricating liquid. The observation window 14 is installed on the outer wall of the valve body 10, so that the user can observe the state of the lubricating liquid and the bubble situation in the liquid storage chamber 50. Through the observation window 14, the staff can intuitively monitor whether there are bubbles in the liquid storage chamber 50, so as to judge whether there is gas in the liquid storage chamber 50. The observation window 14 is made of high-transparency, high-temperature and pressure-resistant glass material (such as quartz glass), and is equipped with a high-temperature resistant sealing gasket to ensure that no leakage will occur in a high-pressure gas environment. The setting of the observation window 14 not only facilitates the intuitive detection of leaks, but also cooperates with the gas detector 30 and the liquid level sensor 31 to form a complete monitoring system, which provides reliable protection for the safety of the gas flow regulating valve.

[0043] The secondary valve core 22 is provided with two inner and outer chambers, namely an outer chamber 52 and an inner chamber 51. The outer ring of the secondary valve core 22 is provided with a gas transmission hole 221 connected to the outer chamber 52. The gas transmission holes 221 have several different specifications. The outer chamber 52 realizes the circulation and flow control of the gas through these gas transmission holes 221. When the secondary valve core 22 rotates, the gas transmission holes 221 of different specifications can be aligned with the pipes on both sides of the valve body 10, allowing the gas to flow in from one side of the pipe and flow out from the other side after passing through the outer chamber 52, so as to realize the flow transmission of the gas.

[0044] The gas delivery hole 221 has various specifications to meet different flow requirements. By adjusting the angle of the secondary valve core 22 so that the gas delivery hole 221 of a specific size is aligned with the pipeline, the gas flow can be graded and controlled to meet various usage requirements. This flow graded adjustment method greatly improves the accuracy of flow control. Since the secondary valve core 22 needs to work for a long time under high temperature and high pressure environment, it is recommended to use wear-resistant and corrosion-resistant high-strength alloy materials, such as stainless steel or titanium alloy, to enhance its service life and working stability.

[0045] The lubricating ring 32 is fixedly mounted on the inner wall of the valve body 10, and the lubricating ring 32 contacts the outside of the secondary valve core 22. When the secondary valve core 22 rotates to a certain position, the lubricating ring 32 covers and seals all the gas holes 221, thereby closing the gas holes 221 from the outside and completely interrupting the flow of gas. This design forms an external sealing protection to ensure that there is no gas leakage in the gas holes 221 when not in operation.

[0046] The seal of the lubrication ring 32 only acts on the outside, while the inner seal is completed by the baffle 222. The baffle 222 is a rotating element in the outer chamber 52, and is mainly used to close or adjust the flow of the gas hole 221. When the baffle 222 rotates to completely cover the gas hole 221, the gas flow is completely blocked; under adjustment at different angles, the baffle 222 can control the gas flow flowing through gas holes 221 of different specifications, thereby achieving more detailed flow control. The baffle 222 is made of high-temperature resistant and corrosion-resistant ceramic materials or nickel alloys to ensure durability and sealing effects in long-term operation.

[0047] The double sealing structure of the outer lubricating ring 32 and the inner baffle 222 provides higher air tightness and effectively prevents gas leakage.

[0048] The annular plate 223 is located in the inner chamber 51, and is linked to the baffle 222 through the gear, so that the driving force of the lubricating liquid can be transmitted to the baffle 222 to realize its rotational sealing function. The annular plate 223 is connected with a return spring 224, and the annular plate 223 and the inner wall of the inner chamber 51 form a liquid injection space 55. When the lubricating liquid enters the liquid injection space 55, the annular plate 223 is pushed to rotate, and the return spring 224 is compressed. When the return spring 224 is fully compressed, the baffle 222 seals all the air delivery holes 221. Figure 4 When the lubricating fluid is extracted, the return spring 224 automatically causes the annular plate 223 to return to its initial position.

[0049] The rectangular hole 225 is arranged on the inner bottom wall of the inner chamber 51. The rectangular hole 225 is connected with the injection space 55. The rectangular hole 225 can continuously inject lubricating liquid into the injection space 55. Under the push of the lubricating liquid, the annular plate 223 drives the baffle 222 to rotate and seal, and the reset spring 224 restores the initial state after the control is completed.

[0050] The valve body 10 is provided with an infusion device 40 for conveying liquid to the liquid storage chamber 50. The infusion device 40 has two modes, automatic and manual. The automatic mode is used for normal lubrication supply. When the automatic function of the regulating valve fails, lubricating liquid can also be provided manually. Such a design not only improves the reliability of the system, but also ensures that the supply of lubricating liquid is not interrupted in an emergency. In order to ensure that the infusion device 40 operates stably in a high temperature environment, it should be made of high temperature resistant and corrosion resistant materials, such as fluororubber seals with stainless steel structures, to maintain the sealing effect and durability.

[0051] The first-stage valve core 21 is internally provided with two upper and lower chambers, wherein the upper chamber 53 is equipped with a motor 211 for driving the second-stage valve core 22, and the lower chamber 54 is connected with the lower liquid storage chamber 50 through the infusion hole 212 to realize the circulation of the lubricating liquid, and the motor 211 is powered by the battery in the upper chamber 53.

[0052] The motor 211 drives the secondary valve core 22 to rotate through gears. The several gas delivery holes 221 provided on the secondary valve core 22 are driven by the motor 211 to rotate to the pipeline docking or closed position with the valve body 10, thereby realizing rapid switching of the gas flow state. The drive of the motor 211 not only enables the regulating valve to be automatically controlled, but also simplifies the operating steps and improves the response speed of the regulating valve.

[0053] When the infusion device 40 increases the delivery of the lubricating liquid in the lower liquid storage chamber 50, as the liquid level of the lubricating liquid in the lower liquid storage chamber 50 rises, the liquid in the lower liquid storage chamber 50 enters the lower chamber 54 through the infusion hole 1 212. The first-level valve core 21 is provided with an infusion hole 213 connecting the rectangular hole 225 and the lower chamber 54. As the liquid level of the lubricating liquid in the lower chamber 54 rises, the lubricating liquid enters the injection space 55 through the infusion hole 213 and the rectangular hole 225, thereby controlling the rotation of the baffle 222.

[0054] The valve body 10 is provided with two upper and lower rotating rods 33. Only when the two rotating rods 33 are inserted at the same time can the rotation of the ball valve 20 be controlled, thereby preventing children from twisting the gas valve, thereby reducing the possibility of gas leakage.

[0055] Furthermore, the upper and lower sides of the valve body 10 are fixed with a cover plate 11 by bolts, the cover plate 11 is installed with a limit plate 12 by bolts, the two rotating rods 33 are threaded through the limit plate 12, the threaded section of the upper rotating rod 33 is longer than the threaded section of the lower rotating rod 33, the upper and lower sides of the first-level valve core 21 penetrate the valve body 10 and the cover plate 11, and the cover plate 11 is provided with a lock 13 for locking the first-level valve core 21.

[0056] The locker 13 is designed as a fixing screw, and the locker 13 is inserted into the reserved hole of the cover plate 11 and the primary valve core 21 is locked to fix it, thereby preventing the primary valve core 21 from rotating in a non-operating state.

[0057] The first-stage valve core 21 is provided with a cylindrical space 56 that passes through from top to bottom. Two rotating rods 33 pass through the cover plate 11 and extend into the cylindrical space 56. A sliding member 34 is provided in the cylindrical space 56. The sliding member 34 can slide up and down in the cylindrical space 56, and the sliding member 34 is provided with a plurality of return springs 36 for providing a return force to ensure that the sliding member 34 returns to the initial position after the operation is completed, thereby improving the stability of the device and the reliability of repeated use.

[0058] When the automatic function of the regulating valve fails, the upper rotating rod 33 is rotated to rotate the upper rotating rod 33 and insert it into the cylindrical space 56. The upper rotating rod 33 contacts the sliding member 34, and the upper rotating rod 33 drives the sliding member 34 to move to the lower rotating rod 33 in the cylindrical space 56. At this time, the return spring 36 is compressed; while rotating the upper rotating rod 33, the lower rotating rod 33 is rotated. Since the threaded section of the lower rotating rod 33 is shorter, when the threaded section of the lower rotating rod 33 moves between the limit plate 12 and the cover plate 11, the lower rotating rod 33 can move and rotate freely in the cylindrical space 56, and the lower rotating rod 33 drives the plug plate 35 to move toward the sliding member 34; at this time, the plug plate 35 is inserted into the sliding member 34, and the locker 13 is taken out. Rotating the lower rotating rod 33 can drive the sliding member 34 to rotate, thereby driving the primary valve core 21 and the secondary valve core 22 to rotate at the same time.

[0059] If only the upper rotating rod 33 is operated, the sliding member 34 cannot move to the plug plate 35; if only the lower rotating rod 33 is operated, the plug plate 35 cannot be inserted into the sliding member 34. If the lock 13 is not removed, the primary valve core 21 cannot rotate, thereby preventing a child from twisting the gas valve, thereby reducing the possibility of gas leakage.

[0060] Furthermore, the liquid storage tank 41 is the main storage unit for the lubricating liquid, which is firmly mounted on the pipes on both sides of the valve body 10 through the connecting piece 42. This installation method ensures that the lubricating liquid can be quickly delivered to the key position in the valve body 10 when the system is operating. A piston 44 is provided inside the liquid storage tank 41, and an electric push-pull rod 45 is connected to the top of the piston 44. The electric push-pull rod 45 passes through the top of the liquid storage tank 41, so that the piston 44 can move up and down inside the liquid storage tank 41, thereby pushing the lubricating liquid in the liquid storage tank 41 into the pipe. This design enables the piston 44 to cooperate with the electric push-pull rod 45 to achieve precise control of the lubricating liquid.

[0061] Lubricating liquid can be added to the liquid storage tank 41 through the liquid inlet pipe 46, and the piston 44 can be moved by the electric push-pull rod 45 to allow the lubricating liquid in the liquid storage tank 41 to enter the diverter valve 43. The diverter valve 43 can control the lubricating liquid to flow to the upper and lower liquid storage chambers 50. The electric push-pull rod 45 can also be pushed and pulled manually.

[0062] The electric push-pull rod 45 not only provides automated operation, but also can be manually operated, ensuring that the lubricant can still be manually pushed in the event of a power system failure. When the electric push-pull rod 45 is in use, the piston 44 is pushed upward or downward to achieve quantitative release of the lubricant. This dual operation mode ensures continuous operation of the equipment under various working conditions, greatly improving the reliability and applicability of the device.

[0063] Furthermore, the annular plate 223 is rotatably connected to the inner wall of the inner chamber 51, the return spring 224 is fixedly connected to the inner wall of the inner chamber 51, and the secondary valve core 22 is provided with a convex plate 226 extending through the upper chamber 53, and the convex plate 226 is provided with a convex tooth 227 meshing with the gear at the output end of the motor 211. The motor 211 can drive the convex plate 226 to rotate, thereby driving the secondary valve core 22 to rotate.

[0064] When the regulating valve is working, the locker 13 locks the primary valve core 21. At this time, the motor 211 drives the convex plate 226 to rotate, thereby driving the secondary valve core 22 to rotate around the primary valve core 21, aligning the air delivery hole 221 of the secondary valve core 22 with the pipelines on both sides of the valve body 10, and then the lubricating liquid is extracted from the lower liquid storage chamber 50 through the infusion device 40. Under the action of gravity and the return spring 224, the lubricating liquid in the injection space 55 returns to the lower liquid storage chamber 50, thereby controlling the rotation of the baffle 222, and then opening the air delivery hole 221.

[0065] When the regulating valve needs to be closed, the motor 211 drives the convex plate 226 to rotate, thereby driving the secondary valve core 22 to rotate around the primary valve core 21, so that the air delivery hole 221 of the secondary valve core 22 contacts the lubricating ring 32, and the air delivery hole 221 is sealed from the outside. Then, the delivery of the lubricating liquid in the lower liquid storage chamber 50 is increased, so that the lubricating liquid enters the liquid injection space 55, and the baffle 222 rotates, and the baffle 222 seals the air delivery hole 221 from the inside.

[0066] When the automatic function of the regulating valve fails, the lubricating liquid can be controlled to be injected into the lower liquid storage chamber 50 by manually operating the electric push-pull rod 45, thereby controlling the opening of the baffle 222, and simultaneously inserting two rotating rods 33 to control the rotation of the ball valve 20, ensuring that the opening and closing of the valve can still be smoothly controlled when the automatic function fails.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent gas flow regulating valve, comprising a valve body (10) and a ball valve (20), characterized in that: The ball valve (20) comprises a primary valve core (21) and a secondary valve core (22) rotatably connected thereto, the primary valve core (21) and the valve body (10) form two upper and lower liquid storage chambers (50), a gas detector (30) and a liquid level sensor (31) are installed in the liquid storage chamber (50), a lubricating ring (32) is arranged outside the secondary valve core (22), the valve body (10) is provided with two upper and lower rotating rods (33), the rotation of the ball valve (20) can be controlled by inserting the two rotating rods (33) at the same time, and a liquid infusion device (40) for conveying liquid to the liquid storage chamber (50) is arranged on a pipeline on one side of the valve body (10); The secondary valve core (22) is provided with an inner chamber (51) and an outer chamber (52). The secondary valve core (22) is provided with an air delivery hole (221) communicating with the outer chamber (52). A baffle plate (222) is rotatably connected in the outer chamber (52). The baffle plate (222) and an annular plate (223) in the inner chamber (51) are driven by gears. The annular plate (223) is connected with a return spring 1 (224). A rectangular hole (225) is provided on the inner bottom wall of the inner chamber (51). The first-stage valve core (21) is provided with an upper chamber (53) and a lower chamber (54); a motor (211) is installed in the upper chamber (53); the motor (211) drives the second-stage valve core (22) to rotate via a gear; a first infusion hole (212) communicating with the liquid storage cavity (50) and the lower chamber (54) is provided at the bottom of the first-stage valve core (21); and a second infusion hole (213) communicating with the rectangular hole (225) and the lower chamber (54) is provided on the first-stage valve core (21).

2. The intelligent gas flow regulating valve according to claim 1, characterized in that: The valve body (10) is fixed with a cover plate (11) on the upper and lower sides by bolts, the cover plate (11) is installed with a limit plate (12) by bolts, the two rotating rods (33) are threadedly penetrated through the limit plate (12), the thread section of the upper rotating rod (33) is longer than the thread section of the lower rotating rod (33), the upper and lower sides of the primary valve core (21) penetrate the valve body (10) and the cover plate (11), and the cover plate (11) is provided with a locker (13) for locking the primary valve core (21).

3. The intelligent gas flow regulating valve according to claim 1, characterized in that: The front face of the valve body (10) is provided with an observation window (14) for observing the liquid storage cavity (50); the lubricating ring (32) is fixedly connected to the inner cavity wall of the valve body (10); the upper and lower sides of the lubricating ring (32) extend to the liquid storage cavity (50) and block the communication between the upper and lower liquid storage cavities (50).

4. The intelligent gas flow regulating valve according to claim 1, characterized in that: The infusion device (40) comprises a liquid storage tank (41), which is mounted on pipelines on both sides of the valve body (10) via a connecting piece (42), the liquid storage tank (41) is connected to a diverter valve (43) mounted on the connecting piece (42), and the diverter valve (43) is respectively connected to upper and lower liquid storage chambers (50) via pipelines.

5. The intelligent gas flow regulating valve according to claim 3 is characterized in that: A piston (44) is installed inside the liquid storage tank (41), an electric push-pull rod (45) penetrating the liquid storage tank (41) is fixed on the top of the piston (44), and a liquid inlet pipe (46) is provided on the top of the outer ring of the liquid storage tank (41).

6. The intelligent gas flow regulating valve according to claim 1, characterized in that: The annular plate (223) is rotatably connected to the inner wall of the inner chamber (51), a return spring (224) is fixedly connected to the inner wall of the inner chamber (51), and the annular plate (223) and the inner wall of the inner chamber (51) form a liquid injection space (55).

7. The intelligent gas flow regulating valve according to claim 1, characterized in that: The top of the secondary valve core (22) is provided with a convex plate (226) penetrating to the upper chamber (53); the convex plate (226) is provided with a convex tooth (227) meshing with the gear at the output end of the motor (211); and the motor (211) has a power-off self-locking function.

8. The intelligent gas flow regulating valve according to claim 1, characterized in that: The primary valve core (21) is provided with a cylindrical space (56) that penetrates from top to bottom, and the two rotating rods (33) both penetrate the cover plate (11) and extend to the cylindrical space (56).

9. The intelligent gas flow regulating valve according to claim 8, characterized in that: A sliding member (34) capable of sliding up and down is clamped in the cylindrical space (56), a plug plate (35) used in conjunction with the sliding member (34) is fixed to the rotating rod (33) below, and a plurality of return springs (36) are fixed to the sliding member (34) and the inner wall of the cylindrical space (56).

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