Quick-response electric throttle valve

Abstract

The invention relates to the technical field of throttle valves, and discloses a quick-response electric throttle valve which comprises a valve body. A cylinder body; the control mechanism is used for controlling the flow of the valve body; the control mechanism comprises an electric control assembly, a magnetic induction assembly and a pressure over-limit action assembly; the electric control assembly is used for electrically controlling the flow rate of the valve body; the magnetic induction assembly is used for controlling the electric control assembly to automatically control the circulation channel of the valve body to be reset and closed when the electric control assembly is powered off. According to the quick-response electric throttle valve, the magnetic induction assembly is arranged, the principle that magnetism is generated through electrification is integrally utilized, in the power-on state, magnetic attraction is carried out to control upward movement of the sliding plate, then the two half sleeves are blocked and limited, the two half sleeves and the valve rod are controlled to be subjected to threaded locking again, and therefore power-off protection automatic sealing reset of the electric throttle valve is integrally achieved; the problem that in the prior art, active control over the throttle valve is tedious after power failure is solved, and the safety and stability of the throttle valve in oil and gas exploitation are improved.

Description

Technical Field

[0001] The invention relates to the technical field of throttle valves, in particular to a fast-response electric throttle valve. Background Art

[0002] In the process of oil and gas field development, the electric throttle valve is the main component of the Christmas tree and the manifold. It is mainly used to transport the oil collected from the well through the electric throttle valve on the Christmas tree and control the oil wellhead production through the electric throttle valve.

[0003] Compared with the traditional manual throttle valve, the electric throttle valve in the existing technology has many characteristics such as fast response and fast flow control rate. However, if the electric throttle valve is controlled by electric means, "electricity" is required. If a power outage occurs, the electric component will lose direct control over it, which will directly lead to the throttle valve being unable to control the flow. When the flow cannot be actually controlled during oil and gas production, the throttle valve cannot be reset and closed in time, which can easily cause certain safety hazards. Therefore, although the electric throttle valve has certain characteristics, the use of electricity has also become a "shortcoming" of the throttle valve. Although the existing technology will design manual and electric parts to control the throttle valve, manual control requires the operator to move to the side of the throttle valve for manual control, while electric control only requires remote operation. Therefore, after the power outage, after the operator moves to the vicinity of the throttle valve, this period of time may have caused oil leakage or overflow, safety accidents have occurred, and losses have occurred. Therefore, a fast-response electric throttle valve is proposed to solve the above-mentioned problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a quick-response electric throttle valve, which solves the problem that the electric throttle valve in the prior art cannot be controlled in time after power failure, resulting in safety accidents such as leakage or overflow during oil and gas extraction, affecting the safe use of the throttle valve.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a fast-response electric throttle valve, comprising a valve body; a cylinder body; a control mechanism for controlling the flow of the valve body; the control mechanism comprises an electric control component, a magnetic induction component, and a pressure over-limit action component; the electric control component is used to electrically control the flow rate of the valve body; the magnetic induction component is used to control the electric control component to automatically control the flow channel of the valve body to reset and close when the power is off; the pressure over-limit action component is used to synchronously control the valve body to reset and close for protection when the flow pressure of the valve body exceeds the bearing pressure value; the cylinder body is installed on the valve body through a connecting piece, an inlet pipe is arranged at the bottom of the valve body, and an outlet pipe is arranged at the side of the valve body.

[0008] Preferably, the electronic control component includes a control motor, which is installed on the cylinder body through a connecting piece, and the output end of the control motor is connected to a connecting shaft, and a driving worm is fixedly connected to the connecting shaft, and a driving worm is meshed with a driving worm wheel on the surface of the driving worm, and a valve stem is arranged in the driving worm wheel, and a threaded sleeve is threadedly connected to the surface of the valve stem, and the threaded sleeve is arranged inside the cylinder body, and the bottom of the valve stem is connected to a valve cover, and the bottom of the valve cover is connected to a valve seat through two connecting rods.

[0009] Preferably, a plurality of through holes are provided inside the valve body, a plurality of perforations are provided on the valve seat, and the plurality of through holes and the plurality of perforations are distributed in a circular array with the center of the valve seat as the center point, and the array angles of the plurality of perforations and the plurality of through holes are staggered, and a ferrule is fixedly connected to the driving worm gear, and the ferrule is slidably connected to the valve stem through a keyway.

[0010] Preferably, the threaded sleeve includes two half sleeves, and the surfaces of the two half sleeves are fixedly connected with triangular prisms, the interior of the cylinder body is provided with a slide groove, the half sleeves are slidably connected inside the slide groove, and the triangular prism is clamped with the magnetic induction component.

[0011] Preferably, the magnetic induction component includes a connector, which is fixed on the cylinder body, and a core rod is connected to the interior of the connector. An induction coil is wound around the surface of the core rod, and two ends of the induction coil are respectively connected to the positive and negative electrodes of the control motor through wires. A sliding plate is provided under the core rod, and the sliding plate is slidably connected to the interior of the cylinder body. A clearance groove is provided on the side of the sliding plate, and the induction coil generates a magnetic force on the core rod when energized to magnetically attract the sliding plate to move upward.

[0012] Preferably, two sliding plates are provided, and the two sliding plates are symmetrically distributed with the center line of the valve stem as the symmetry axis, and a magnetic sensing sheet is fixedly connected to the bottom of the core rod, and the magnetic sensing sheet magnetically attracts the two sliding plates.

[0013] Preferably, the pressure overlimit action assembly includes a pressure rod, which is slidably connected to the inside of the valve stem, the top of the pressure rod is connected to a core shaft, the surface of the core shaft is sleeved with a pressure spring, a rising plate is connected to the core shaft through a pin shaft, the surface of the valve stem is slidably connected to an abutment plate, the abutment plate is fixedly connected to a sliding tooth plate, a center gear is meshed on the sliding tooth plate, the surface of the center gear is meshed with a side tooth plate, the top of the side tooth plate is connected to the bottom of the sliding plate, and the center gear is rotatably connected to the inside of the cylinder body.

[0014] Preferably, a slide groove is provided on the valve stem, and the pin shaft is slidably connected to the slide groove.

[0015] Preferably, it also includes a pressure indicator component, which includes a pressure dial, a pointer is connected to the center of the pressure dial, the pointer is connected to a pinion through an axle, a small tooth plate is meshed on the surface of the pinion, and the small tooth plate is clamped on the rising plate through a connecting piece.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a fast-response electric throttle valve, which has the following beneficial effects:

[0018] 1. The quick-response electric throttle valve, through the magnetic induction component, can use gravity to control the overall sliding separation of the threaded sleeve during the process of controlling the power failure of the motor, thereby releasing the thread lock of the valve stem. After that, the oil and gas pressure in the well will push the valve seat to automatically move up and press against the inlet position of the valve body, thereby realizing automatic resetting and closure. The overall principle of magnetism generated by electricity is used. In the power-on state, magnetic attraction is used to control the upward movement of the sliding plate, and then the two half sleeves are blocked and limited, and they are controlled to be threadedly locked again with the valve stem, thereby realizing the automatic closure and resetting of the power-off protection of the electric throttle valve as a whole, solving the problem of cumbersome active control of the throttle valve after power failure in the prior art, and improving the safety and stability of the throttle valve in oil and gas production.

[0019] 2. The quick-response electric throttle valve, through the set pressure over-limit action component, can reverse the sliding plate after the throttle valve exceeds its own pressure limit value, so that it can also contact the limit of the threaded sleeve to achieve double protection reset closure, avoid the instability of the throttle valve during high-pressure operation, and cause pressure damage to the internal components, thereby indirectly improving the quick response of the electric throttle valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a fast-response electric throttle valve proposed by the present invention;

[0021] Figure 2This is a schematic diagram of the overall cross-sectional structure of a fast-response electric throttle valve proposed by the present invention;

[0022] Figure 3 A schematic diagram of the structure of an electric control component of a fast-response electric throttle valve proposed by the present invention;

[0023] Figure 4 A schematic diagram of a valve seat connection structure of a fast-response electric throttle valve proposed by the present invention;

[0024] Figure 5 A schematic diagram of the connection structure between the valve stem and the valve cover of a fast-response electric throttle valve proposed by the present invention;

[0025] Figure 6 A schematic diagram of the connection structure of a threaded sleeve of a fast-response electric throttle valve proposed by the present invention;

[0026] Figure 7 A schematic diagram of the structure of a magnetic induction component of a fast-response electric throttle valve proposed by the present invention;

[0027] Figure 8 A schematic diagram of a pressure over-limit action component of a fast-response electric throttle valve proposed by the present invention;

[0028] Fig. 9 A schematic diagram of a pressure display component of a fast-response electric throttle valve proposed by the present invention.

[0029] In the figure: 1, valve body; 2, cylinder body; 3, control mechanism; 301, control motor; 302, connecting shaft; 303, driving worm; 304, driving worm wheel; 305, ferrule; 306, threaded sleeve; 3061, half sleeve; 3062, triangular column; 3063, slideway; 307, valve stem; 308, valve cover; 309, valve seat; 310, connecting rod; 311, perforation; 312, through hole; 313, core rod; 314, induction Coil; 315, connector; 316, magnetic plate; 317, sliding plate; 318, give way groove; 319, pressure rod; 320, pressure spring; 321, pin shaft; 322, rising plate; 323, abutment plate; 324, sliding tooth plate; 325, center gear; 326, side tooth plate; 327, pressure dial; 328, pointer; 329, small gear; 330, small tooth plate; 331, core shaft; 4, inlet pipe; 5, outlet pipe. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-Figure 9 A fast response electric throttle valve comprises a valve body 1; a cylinder body 2; a control mechanism 3 for controlling the flow of the valve body 1; the control mechanism 3 comprises an electric control component, a magnetic induction component, and a pressure over-limit action component; the electric control component is used to electrically control the flow of the valve body 1; the magnetic induction component is used to control the electric control component to automatically control the flow channel of the valve body 1 to reset and close when the power is off; the pressure over-limit action component is used to synchronously control the valve body 1 to reset and close when the flow pressure of the valve body 1 exceeds the bearing pressure value; the cylinder body 2 is installed on the valve body 1 through a connecting piece, an inlet pipe 4 is arranged at the bottom of the valve body 1, and an outlet pipe 5 is arranged at the side of the valve body 1.

[0032] In this embodiment, the electric control component includes a control motor 301, which is installed on the cylinder body 2 through a connecting piece. The output end of the control motor 301 is connected to a connecting shaft 302, and a driving worm 303 is fixedly connected to the connecting shaft 302. The surface of the driving worm 303 is meshed with a driving worm wheel 304, and a valve stem 307 is arranged in the driving worm wheel 304. The surface of the valve stem 307 is threadedly connected with a threaded sleeve 306, and the threaded sleeve 306 is arranged inside the cylinder body 2. The bottom of the valve stem 307 is connected to a valve cover 308, and the bottom of the valve cover 308 is connected to a valve seat 309 through two connecting rods 310. The rotation of the control motor 301 is controlled, and then the rotation of the control motor 301 will drive the rotation of the driving worm 303, and the meshing of the worm wheel and the worm The transmission will drive the rotation of the ferrule 305, and the ferrule 305 rotates with the valve stem 307 through the keyway, and the rotation of the valve stem 307 will be transmitted through the thread on its surface and the threaded sleeve 306, thereby driving the valve stem 307 to move up and down, and the up and down movement of the valve stem 307 will drive the bottom valve cover 308 to move up and down, and then drive the valve seat 309 to move up and down through the connecting rod 310, and the up and down movement of the valve seat 309 will control the size of the flow port of the valve body 1. When the valve seat 309 moves up, it will be close to the flow port of the valve body 1, so the distance between them will become smaller, and the amount of fluid entering will become smaller, while when it moves down, the distance becomes larger, and on the contrary, so controlling the up and down movement of the valve seat 309 will achieve the overall flow control effect of the throttle valve.

[0033] Furthermore, a plurality of through holes 312 are arranged inside the valve body 1, and a plurality of perforations 311 are arranged on the valve seat 309, and the plurality of through holes 312 and the plurality of perforations 311 are arranged in a circular array with the center of the valve seat 309 as the center point, and the array angles of the plurality of perforations 311 and the plurality of through holes 312 are staggered, and a ferrule 305 is fixedly connected to the driving worm gear 304, and the ferrule 305 is slidably connected to the valve stem 307 through a keyway. The plurality of perforations 311 are arranged to reduce the resistance generated by the valve seat 309 itself during the oil and gas circulation process, so that the circulation is relatively smooth and there will be no obstruction. After that, the airflow will enter the internal cavity of the valve body 1 from the mouth and the position of the through hole 312, and then flow out from the left side, and the angle stagger is to enable the upper surface of the valve seat 309 to abut and seal the through hole 312 after it moves up, and after opening, another flow channel is generated to reduce the resistance of the valve seat 309 itself in the middle of the oil circuit.

[0034] Furthermore, the threaded sleeve 306 includes two half sleeves 3061, and the surfaces of the two half sleeves 3061 are fixedly connected with triangular pillars 3062, the interior of the cylinder body 2 is provided with a slide groove 3063, the half sleeve 3061 is slidably connected inside the slide groove 3063, and the triangular pillar 3062 is engaged with the magnetic induction component. Through the structure of the two half sleeves 3061, the threaded connection of the valve stem 307 is realized, and the conditions for releasing the threaded connection constraint are released, which facilitates the subsequent automatic rapid response reset process after power failure and pressure overrun.

[0035] In addition, the magnetic induction component includes a connector 315, which is fixed on the cylinder body 2. The interior of the connector 315 is connected to a core rod 313. An induction coil 314 is wound around the surface of the core rod 313. The two ends of the induction coil 314 are respectively connected to the positive and negative electrodes of the control motor 301 through wires. A sliding plate 317 is arranged under the core rod 313. The sliding plate 317 is slidably connected to the interior of the cylinder body 2. A clearance groove 318 is provided on the side of the sliding plate 317. When the induction coil 314 is energized, it generates a magnetic force on the core rod 313 to magnetically attract the sliding plate 317 to move upward. When the power is off, no current will appear on the control motor 301, so the induction coil 314 will not generate a magnetic force on the core rod 313, and the sliding plate 317 will slide down with gravity, so that the clearance groove 318 is aligned with the triangular prism 3062. At this time, the two half sleeves 3061 are not limited by the abutment of the sliding plate 317, and they will separate. Because during the threaded connection process, when there is no external limit, the thread itself will have an outward tension, so the two half sleeves 3061 will separate and produce a certain spacing. Finally, the two half sleeves 3061 will be separated from the threaded connection of the valve stem 307, and the valve stem 307 will be in a state of no constraint up and down, and the triangular prism 3062 on the two half sleeves 3061 will slide horizontally to the position of the clearance groove 318. At this time, after the valve stem 307 is not restricted by the thread, the inlet pipe 4 at the bottom of the valve body 1 is subject to the upward output pressure of the oil and gas, which will push the valve seat 309 to move upward, thereby realizing the automatic closure of the reset pipeline.

[0036] In addition, two sliding plates 317 are provided, and the two sliding plates 317 are symmetrically distributed with the center line of the valve stem 307 as the symmetry axis. The bottom of the core rod 313 is fixedly connected with a magnetic sensing sheet 316, and the magnetic sensing sheet 316 magnetically attracts the two sliding plates 317. Because two half sleeves 3061 are provided, two sliding plates 317 must be provided, and the longer magnetic sensing sheet 316 will generate a magnetic attraction phenomenon on the two sliding plates 317 after being energized and magnetized, thereby achieving synchronous attraction on both sides.

[0037] It is worth noting that the pressure overlimit action component includes a pressure rod 319, which is slidably connected to the inside of the valve stem 307. The top of the pressure rod 319 is connected to a core shaft 331, and the surface of the core shaft 331 is sleeved with a pressure spring 320. The core shaft 331 is connected to a rising plate 322 through a pin shaft 321. The surface of the valve stem 307 is slidably connected to an abutment plate 323, and the abutment plate 323 is fixedly connected to a sliding tooth plate 324. The sliding tooth plate 324 is meshed with a center gear 325, and the surface of the center gear 325 is meshed with a side tooth plate 326. The top of the side tooth plate 326 is connected to the bottom of the sliding plate 317, and the center gear 325 is rotatably connected to the inside of the cylinder body 2. By setting a pressure over-limit action component, the main function is to prevent the throttle valve from having excessive flow pressure when in use, which would cause a large internal pressure loss in the valve body 1. Under long-term operation, it is easy to cause life damage to the internal structural components. Therefore, a component that automatically closes and protects the throttle valve when the flow pressure exceeds a certain value is set. When oil and gas enter the internal cavity of the valve body 1, that is, the lateral connecting space of the outlet pipe 5, the oil and gas pressure will act on the inside of the pressure rod 319, thereby lifting the pressure rod 319. During the lifting process, the pressure spring 320 will be squeezed. When the pressure rod 319 moves upward, it will drive the core shaft 331 When the core shaft 331 moves upward, the upward movement of the core shaft 331 will drive the upward movement of the rising piece 322 through the pin shaft 321. When the core shaft 331 moves upward to contact the contact piece 323, it means that the pressure value has basically reached the critical value. After exceeding a certain pressure, the contact piece 323 will be synchronously lifted upward, thereby driving the upward movement of the sliding tooth plate 324. The upward movement of the sliding tooth plate 324 will drive the rotation of the central gear 325. At this time, the side tooth plate 326 on the other side will slide downward in the opposite direction, thereby driving the sliding plate 317 to move downward, driving the sliding plate 317 to squeeze and slide downward. At this time, the two half sleeves 3061 will still release the limit, thereby realizing the release of the upper and lower constraints of the valve stem 307. The valve stem 307 is provided with a slide groove 3063, and the pin shaft 321 is slidably connected to the slide groove 3063. The slide groove 3063 is provided to provide an upper and lower sliding space for the pin shaft 321, thereby controlling the upper and lower movement of the pressure change of the rising piece 322.

[0038] It is worth mentioning that it also includes a pressure display component, which includes a pressure dial 327, a pointer 328 is connected to the center of the pressure dial 327, and the pointer 328 is connected to a small gear 329 through a shaft rod. A small tooth plate 330 is meshed on the surface of the small gear 329, and the small tooth plate 330 is clamped on the rising piece 322 through a connecting piece. The purpose of setting the clamping is that when the rising piece 322 rotates, the small tooth plate 330 also rotates, so to ensure that the rising piece 322 rotates, the angle of the small tooth plate 330 will not change. The specific clamping structure is that the clamping plate in the upper and lower positions is clamped in the position of the rising piece 322, and the up and down movement of the rising piece 322 will only drive the up and down movement of the small tooth plate 330, and the small tooth plate 330 will not be affected in the rotating state. The pressure display component is set up to display the real-time pressure value inside the throttle valve. When the pressure rod 319 is moved upward by the oil and gas pressure, it will drive the rising plate 322 to move upward, and then drive the small tooth plate 330 to move upward, and then drive the small gear 329 to rotate. The rotation of the small gear 329 will drive the pointer 328 to rotate on the pressure dial 327. Finally, the rotation of the pointer 328 can check the internal flow pressure value of the throttle valve at this time, which can also facilitate the subsequent regulation of the internal flow of the throttle valve. If the pressure is too high, the flow rate can be increased. The specific adjustment method is adjusted according to the situation on site.

[0039] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device for controlling a computer or the like.

[0040] Working principle: first, during the oil and gas production process, when the throttle valve needs to be electrically controlled, the rotation of the control motor 301 needs to be controlled remotely, and then the rotation of the control motor 301 will drive the rotation of the drive worm 303, and the meshing transmission of the worm gear will drive the rotation of the sleeve 305, and the sleeve 305 is rotated through the keyway and the valve stem 307, and the rotation of the valve stem 307 will be threadedly connected with the threaded sleeve 306 through the thread on its surface, thereby driving the valve stem 307 to move up and down, and the up and down movement of the valve stem 307 will drive the bottom valve cover 308 to move up and down, and then drive the valve seat 309 to move up and down through the connecting rod 310, and the up and down movement of the valve seat 309 will control the size of the flow port of the valve body 1, and when the valve seat 309 moves up, it will be close to the flow port of the valve body 1, so the spacing between them will become smaller, and the amount of fluid entering will become smaller, and when it moves down, the spacing becomes larger, and on the contrary, so controlling the up and down movement of the valve seat 309 will realize the overall flow control of the throttle valve. And multiple perforations 311 are provided to reduce the resistance of the valve seat 309 itself during the oil and gas circulation process, so that the circulation is smoother and there will be no blockage. Then the airflow will enter the internal cavity of the valve body 1 from the mouth and the through hole 312, and then flow out from the left side. The entire throttle valve relies on the control motor 301 to control the flow, so the operator can remotely operate the control motor 301 to achieve rapid flow control and improve the response rate of the throttle valve. If a power outage occurs, the safety of the oil well and the pipeline must be guaranteed, so the throttle valve needs to be controlled for reset protection.The device is provided with a magnetic induction component, which uses the principle of magnetization when power is on and demagnetization when power is off to control the movement of the sliding plate 317. Specifically, when power is on, that is, the motor 301 is controlled to always keep the circuit powered, electricity will be transmitted to the induction coil 314 through the connection of the wire, and then the core rod 313 will be powered to generate magnetism, generating a certain magnetic force, and then the magnetic force will be transmitted to the magnetic sensing sheet 316, and the magnetic sensing sheet 316 will generate magnetic attraction to the sliding plate 317, thereby controlling the upward movement of the sliding plate 317, and the upward movement of the sliding plate 317 will control The vertical surface of the control sliding plate 317 abuts against the triangular column 3062, thereby driving the two half sleeves 3061 to merge and squeeze, and abut against the valve stem 307 to form a threaded connection state. Therefore, the rotation of the valve stem 307 at this time will be realized by the threaded connection. The flow control effect of the throttle valve itself is realized. If the power is off, there will be no current on the control motor 301 at this time, so the induction coil 314 will not generate a magnetic force on the core rod 313, and the sliding plate 317 will slide down following the gravity, so that the throttle valve 313 can be opened. The positioning groove 318 is aligned with the triangular column 3062. At this time, the two half sleeves 3061 are not limited by the abutment of the sliding plate 317, and they will separate. Because in the process of threaded connection, when there is no external limit, the thread itself will have an outward tension, so the two half sleeves 3061 will separate and produce a certain distance. Finally, the threaded connection between the two half sleeves 3061 and the valve stem 307 will be separated and released. At this time, the valve stem 307 will be in a state of no restraint up and down, and the triangular column 3062 on the two half sleeves 3061 will slide horizontally. When the throttle valve 307 is in a closed position, the valve stem 307 is free from the restriction of the thread. The inlet pipe 4 at the bottom of the valve body 1 is subjected to the upward output pressure of the oil and gas, which will push the valve seat 309 upward. Because the valve seat 309 is at the center of gravity of the flow channel, it will produce a certain resistance to the flow channel. Therefore, the valve seat 309 will be automatically pressed against the position of the internal flow port of the valve body 1, achieving an overall automatic resetting and sealing effect. There is no need for the operator to manually control the valve, which indirectly improves the overall power-off response rate of the throttle valve and improves the safety of the oil pipe during power-off.In addition, the technical solution is also provided with a pressure overlimit action component, the main function of which is to prevent the throttle valve from having excessive flow pressure when in use, which would cause a large internal pressure loss in the valve body 1. Under long-term operation, it is easy to cause life damage to the internal structural components. Therefore, a component is provided that automatically closes and protects the throttle valve when the flow pressure exceeds a certain value. Specifically, when oil and gas enter the internal cavity of the valve body 1, that is, the lateral connecting space of the outlet pipe 5, the oil and gas pressure will act on the inside of the pressure rod 319, thereby lifting the pressure rod 319, and the pressure spring 320 will be squeezed during the lifting process. When the pressure rod 319 moves upward, it will drive the core shaft 331 to move upward. The upward movement of the core shaft 331 will drive the upward movement of the rising piece 322 through the pin shaft 321. When it moves upward to contact with the abutment piece 323, it means that the pressure value has basically reached the critical value. When it exceeds a certain pressure, the abutment piece 323 will be synchronously lifted. The sliding plate 317 is pressed downwards and the two half sleeves 3061 are still released from the limit position, thereby releasing the upper and lower constraints on the valve stem 307. Similarly, the oil and gas pressure of the bottom inlet pipe 4 will lift the valve seat 309 again to achieve the self-sealing effect of the flow port. Therefore, the overall solution realizes double-layer reset protection, thereby improving the overall operating stability of the throttle valve and the response rate under pressure over-limit and power-off conditions, and finally protecting the pipeline to avoid oil and gas leakage and overflow caused by the throttle valve not being reset and closed in time after power off.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A fast response electric throttle valve, characterized in that: include Valve body (1); Cylinder body (2); A control mechanism (3) for controlling the flow of the valve body (1); The control mechanism (3) comprises an electric control component, a magnetic induction component, and a pressure over-limit action component; The electric control component is used to electrically control the flow rate of the valve body (1); The magnetic induction component is used to control the electric control component to automatically control the flow channel of the valve body (1) to reset and close when the power is off; The pressure over-limit action component is used to synchronously control the valve body (1) to reset and close for protection when the flow pressure of the valve body (1) exceeds the bearing pressure value; The cylinder body (2) is mounted on the valve body (1) via a connecting piece; an inlet pipe (4) is provided below the valve body (1); and an outlet pipe (5) is provided on the side of the valve body (1).

2. A fast response electric throttle valve according to claim 1, characterized in that: The electric control component comprises a control motor (301), wherein the control motor (301) is mounted on the cylinder body (2) via a connecting piece, wherein the output end of the control motor (301) is connected to a connecting shaft (302), wherein a driving worm (303) is fixedly connected to the connecting shaft (302), wherein the surface of the driving worm (303) is meshed with a driving worm wheel (304), wherein a valve stem (307) is arranged inside the driving worm wheel (304), wherein the surface of the valve stem (307) is threadedly connected to a threaded sleeve (306), wherein the threaded sleeve (306) is arranged inside the cylinder body (2), wherein the bottom of the valve stem (307) is connected to a valve cover (308), wherein the bottom of the valve cover (308) is connected to a valve seat (309) via two connecting rods (310).

3. A fast response electric throttle valve according to claim 2, characterized in that: The valve body (1) is provided with a plurality of through holes (312) inside, and the valve seat (309) is provided with a plurality of perforations (311), and the plurality of through holes (312) and the plurality of perforations (311) are distributed in a circular array with the center of the valve seat (309) as the center point, and the array angles of the plurality of perforations (311) and the plurality of through holes (312) are staggered, and a ferrule (305) is fixedly connected to the driving worm gear (304), and the ferrule (305) is slidably connected to the valve stem (307) via a keyway.

4. A fast response electric throttle valve according to claim 3, characterized in that: The threaded sleeve (306) includes two half sleeves (3061), and the surfaces of the two half sleeves (3061) are fixedly connected with triangular pillars (3062). The cylinder body (2) is provided with a slide groove (3063) inside. The half sleeve (3061) is slidably connected inside the slide groove (3063), and the triangular pillar (3062) is clamped with the magnetic induction component.

5. A fast response electric throttle valve according to claim 4, characterized in that: The magnetic induction component comprises a connector (315), the connector (315) is fixed on the cylinder body (2), a core rod (313) is connected inside the connector (315), an induction coil (314) is wound around the surface of the core rod (313), two ends of the induction coil (314) are respectively connected to the positive and negative electrodes of the control motor (301) through electric wires, a sliding plate (317) is arranged below the core rod (313), the sliding plate (317) is slidably connected to the inside of the cylinder body (2), a side surface of the sliding plate (317) is provided with a clearance groove (318), and the induction coil (314) generates a magnetic force on the core rod (313) when powered on, so as to magnetically attract the sliding plate (317) to move upward.

6. A fast response electric throttle valve according to claim 5, characterized in that: Two sliding plates (317) are provided, and the two sliding plates (317) are symmetrically distributed with the center line of the valve stem (307) as the symmetry axis. The bottom of the core rod (313) is fixedly connected with a magnetic sensing sheet (316), and the magnetic sensing sheet (316) magnetically attracts the two sliding plates (317).

7. A fast response electric throttle valve according to claim 6, characterized in that: The pressure overlimit action assembly comprises a pressure rod (319), the pressure rod (319) is slidably connected to the inside of the valve stem (307), the top of the pressure rod (319) is connected to a core shaft (331), the surface of the core shaft (331) is sleeved with a pressure spring (320), the core shaft (331) is connected to a rising plate (322) through a pin shaft (321), the surface of the valve stem (307) is slidably connected to an abutment plate (323), the abutment plate (323) is fixedly connected to the sliding tooth plate (324), the sliding tooth plate (324) is meshed with a central gear (325), the surface of the central gear (325) is meshed with a side tooth plate (326), the top of the side tooth plate (326) is connected to the bottom of the sliding plate (317), and the central gear (325) is rotatably connected to the inside of the cylinder body (2).

8. A fast response electric throttle valve according to claim 7, characterized in that: The valve stem (307) is provided with a slide groove (3063), and the pin shaft (321) is slidably connected to the slide groove (3063).

9. A fast response electric throttle valve according to claim 8, characterized in that: It also includes a pressure display component, which includes a pressure dial (327), a pointer (328) is connected to the center of the pressure dial (327), the pointer (328) is connected to a pinion (329) through a shaft, the surface of the pinion (329) is meshed with a small tooth plate (330), and the small tooth plate (330) is clamped on the rising plate (322) through a connecting piece.

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