High-pressure gas high-flow rapid filling interface controller and method

Abstract

The invention discloses a high-pressure gas high-flow rapid filling connector controller and method.The controller comprises a gas inlet connector pipe, a main valve element set and a movable valve element set are installed in the gas inlet connector pipe, and a main sealing seat is installed in the gas inlet connector pipe; the main valve element set is provided with a valve element main flow channel and a gas channel. The movable valve element set is movably arranged at one end of the main valve element set in a sleeved mode, a main valve sealing gasket is installed on the movable valve element set, and the flow of the gas channel is controlled through the contact degree of the main valve sealing gasket and the main sealing seat. The movable valve element set is provided with a pilot flow channel, the pilot flow channel guides pilot gas to flow in the direction away from the main sealing seat and then converge into the valve element main flow channel, and the pilot gas is a part of gas shunted to the front of the main valve element set from the gas inlet connector pipe. After the valve element is improved, the first flow guide channel is utilized, and by means of the pressure difference between the two ends of the valve element, a worker is assisted in controlling high-pressure gas.

Description

Technical Field

[0001] The present invention relates to a high-pressure gas controller, in particular to a high-pressure gas large-flow rapid filling interface controller and method. Background Art

[0002] In the field of high-pressure gas control, especially in high-pressure (usually in the range of 20-100MPa) filling applications such as compressed natural gas (CNG) and high-pressure hydrogen, traditional two-position three-way valves generally face many challenges. These traditional valve designs are often unable to effectively adapt to high-pressure conditions and have many disadvantages. Among them, the more prominent problems include excessive friction resistance of the control valve core and easy jamming of the valve core. These problems not only affect the stability and reliability of the valve, but also increase the difficulty of operation and maintenance costs.

[0003] In response to the above problems, the utility model patent with publication number CN212273133U proposes a plunger-type rack-driven two-position three-way valve. This patent solution overcomes the shortcomings of traditional two-position three-way valves under high-pressure conditions to a certain extent through innovative design ideas, and improves the adaptability and reliability of the valve.

[0004] However, although the utility model patent scheme of CN212273133U has made some technical breakthroughs, some problems are still exposed in the actual application process. Specifically, the movement of the valve core in this scheme mainly relies on manual control. During the filling process of high-pressure and large-flow gas, the staff needs to exert a lot of force to complete operations such as valve core movement, which not only increases the labor intensity of the operator, but also may affect the convenience and safety of the operation. At the same time, the handle of the above-mentioned utility model patent is radially fixed and cannot be rotated. During the control process, if the handle space is limited and cannot be rotated, the operation is inconvenient. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a high-pressure gas large-flow rapid filling interface controller and method. The present invention improves the valve core and utilizes the pilot flow channel to assist the staff in controlling the high-pressure gas with the help of the pressure difference at both ends of the valve core.

[0006] On the one hand, the present invention provides a high-pressure gas large-flow fast filling interface controller, including an air intake interface pipe, in which a main valve core group and a movable valve core group are installed. A main sealing seat is installed in the air inlet interface pipe, and the main valve core group penetrates the main sealing seat; The main valve core assembly is provided with a valve core main flow channel and a gas channel, and the high-pressure gas enters the valve core main flow channel through the gas flow channel after being diverted by the gas flow interface pipe; The movable valve core group is movably sleeved on one end of the main valve core group and is located in the air inlet interface pipe. A main valve sealing gasket is installed on the movable valve core group, and the flow rate of the gas channel is controlled by the contact degree between the main valve sealing gasket and the main sealing seat; The movable valve core group is provided with a pilot flow channel, which guides the pilot gas to flow away from the main sealing seat and then merge into the main flow channel of the valve core. The pilot gas is a part of the gas diverted from the air inlet interface pipe to the main valve core group.

[0007] Optionally, a drainage cover is installed in the air inlet interface pipe, the movable valve core group is movably installed in the drainage cover, and a valve core reset power part is installed between the inner end of the drainage cover and the end surface of the movable valve core group; Optionally, the movable valve core assembly includes a movable valve core seat and a movable valve core cover, and the main valve sealing gasket is installed at the end of the movable valve core seat; The movable valve core seat has a valve core cavity with a central hole, the front part of the movable valve core cover is connected to the valve core cavity, and a pilot groove independent of the valve core cavity is provided at the connecting part of the movable valve core cover and the movable valve core seat, and the air inlet end of the pilot groove is a small gap annular hole formed between the movable valve core seat and the guide cover; A drainage hole is provided between the pilot groove and the valve core cavity to connect the pilot groove and the valve core cavity; One end of the main valve core assembly passes through the valve core cavity and extends to the movable valve core cover; The small gap annular hole, the pilot groove and the drainage hole constitute the pilot flow channel.

[0008] Optionally, the drainage hole is opened in a drainage spacer, and the drainage spacer is installed in the valve core cavity and is fixed by a movable valve core cover with a pressing force.

[0009] Optionally, the main valve core group is provided with an exhaust component, which includes an exhaust seat sleeve, an exhaust valve and an exhaust pipe; The exhaust seat cover is installed on the main valve core group, and has an exhaust channel in the exhaust seat cover. When the main valve core group moves to a specified position, the valve core main flow channel of the main valve core group is connected with the exhaust channel; The exhaust pipe is installed on the exhaust seat sleeve through an exhaust valve and communicates with the exhaust passage.

[0010] Optionally, the main valve core group is equipped with a drive assembly, which includes: an intermediate connecting pipe, a rack ring and a pull rod; The intermediate connecting pipe is connected to the air inlet interface pipe, and the main valve core group is located in the intermediate connecting pipe; The rack ring is rotatably mounted on the main valve core assembly, and an axial force transmission block is radially mounted between the rack ring and the main valve core assembly, and an annular groove for mounting the force transmission block is provided in the rack ring; The shift bar is rotatably installed via a pin shaft, and one end of the shift bar is meshed with the rack ring for transmission.

[0011] Optionally, a mounting portion for mounting a rack ring is provided on the main valve core assembly, and a groove for mounting a force transmission block is formed on the mounting portion.

[0012] Optionally, a gear box is installed on the intermediate connecting pipe, the pin shaft is installed on the gear box, and a handle is installed on the lever sleeve; the handle, lever, gear box and rack ring rotate synchronously with the axis of the main valve core group.

[0013] Optionally, the main valve core assembly includes a main valve core, a main valve core small diameter sleeve and a fastening sleeve. The main valve core comprises a large diameter portion and a small diameter portion, wherein the small diameter portion is inserted into the movable valve core group, and an inclined gas channel is opened at the transition between the large diameter portion and the small diameter portion; The main valve core small diameter sleeve is sleeved on the small diameter part of the main valve core, the fastening sleeve is connected to the front end of the small diameter part and presses the main valve core small diameter sleeve tightly, the main valve core small diameter sleeve is provided with a gas channel, and the main valve core small diameter sleeve and the main valve core gas channel are connected; A gap channel is provided between the small-diameter sleeve of the main valve core and the small-diameter portion of the main valve core. One end of the gap channel is communicated with the pilot flow channel, and the other end is communicated with the main flow channel of the valve core after passing through the gas channel.

[0014] Optionally, the high-pressure gas large-flow rapid filling interface controller also includes an inflation connection component, which is connected to an intermediate connecting pipe.

[0015] On the other hand, the present invention also provides a high-pressure gas large-flow rapid filling control method, which is implemented by using the high-pressure gas large-flow rapid filling interface controller, including a gas source disconnection stage and a ventilation stage; The gas source disconnection stage is to move the main valve core group and the movable valve core group to prevent the gas source from entering the gas receiving device from the controller; The ventilation stage is to move the main valve core group and the movable valve core group to allow the gas source to enter the gas receiving device from the controller The present invention has the following advantages: The present invention is used to control high-pressure and high-flow gas. After reasonably improving the valve core, the pilot flow channel is used to assist the movement of the valve core with the help of the pressure difference at both ends of the valve core, thereby realizing safe and reliable control of high-pressure and high-flow gas. After improving the valve core, it is easier for workers to control high-pressure and high-flow gas, and the use is also safer and more controllable.

[0016] At the same time, through the improvement of the driving component and the use of the rack ring design, the handle can be rotated around the axis of the main valve core, and the movement of the valve core can be controlled by pushing the handle, avoiding the problem that the traditional controller requires the handle to be inconvenient to turn when the position is not suitable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the high-pressure gas large-flow rapid filling interface controller; Figure 2 This is a half-section schematic diagram of the high-pressure gas large-flow rapid filling interface controller (closed process state) Figure 3 yes Figure 2 A partial enlarged schematic diagram of M in the figure (the arrows in the figure indicate the direction of gas flow) Figure 4 This is a half-section schematic diagram of the high-pressure gas large-flow rapid filling interface controller (closed state schematic diagram) Figure 5 yes Figure 4 A partial enlarged schematic diagram of N in the figure (the arrows in the figure indicate the gas flow direction); Figure 6 1. is a half-section schematic diagram of the high-pressure gas large-flow rapid filling interface controller (opening process state); Figure 7 yes Figure 6 A is a partial enlarged schematic diagram (the arrows in the figure indicate the gas flow direction); Figure 8 is a half-section schematic diagram of the high-pressure gas large-flow rapid filling interface controller (fully opened state); Fig. 9 yes Figure 8 A partial enlarged schematic diagram of B in the middle; Fig.10 It is a partial connection diagram of the gear box of the high-pressure gas large-flow rapid filling interface controller; Fig.11 It is a partial schematic diagram of the rack ring connection of the high-pressure gas large-flow rapid filling interface controller; Fig.12 This is a schematic diagram of the main valve core group structure of the high-pressure gas large-flow rapid filling interface controller; Fig.13 is a schematic diagram of the three-dimensional structure of the gear box; Fig.14 This is a schematic diagram of the structure of the rack ring installation force transmission block Fig.15 is a three-dimensional schematic diagram of the movable valve core cover; Fig.16 is a schematic diagram of the three-dimensional structure of the main valve core; Fig.17 is a structural schematic diagram of the small-diameter sleeve; Fig.18 It is a three-dimensional schematic diagram of the small-diameter sleeve from another perspective. DETAILED DESCRIPTION

[0018] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0019] In this document, relational terms such as first and second, etc., are used only 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", "comprises", or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes 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 apparatus.

[0020] In the field of high-pressure gas control, especially in high-pressure (usually in the range of 20-100MPa) filling applications such as compressed natural gas (CNG) and high-pressure hydrogen, traditional two-position three-way valves generally face many challenges. These traditional valve designs are often unable to effectively adapt to high-pressure conditions and have many disadvantages. Among them, the more prominent problems include excessive friction resistance of the control valve core and easy jamming of the valve core. These problems not only affect the stability and reliability of the valve, but also increase the difficulty of operation and maintenance costs.

[0021] In response to the above problems, the utility model patent with publication number CN212273133U proposes a plunger-type rack-driven two-position three-way valve. This patent solution overcomes the shortcomings of traditional two-position three-way valves under high-pressure conditions to a certain extent through innovative design ideas, and improves the adaptability and reliability of the valve.

[0022] However, although the utility model patent scheme of CN212273133U has made some technical breakthroughs, some problems are still exposed in the actual application process. Specifically, the movement of the valve core in this scheme mainly relies on manual control. During the filling process of high-pressure and large-flow gas, the staff needs to exert greater force to complete operations such as gas control, which not only increases the labor intensity of the operator, but also may affect the convenience and safety of the operation. At the same time, the handle of the above-mentioned utility model patent is radially fixed and cannot be rotated. During the control process, if the handle space is limited and cannot be rotated, the operation is inconvenient.

[0023] Based on the above reasons, Figure 1-Figure 14 As shown, this embodiment provides a high-pressure gas large-flow fast filling interface controller, including an air inlet interface pipe 24, a main valve core group 28, a movable valve core group, a guide cover 22, an exhaust assembly, a drive assembly and an air charging connection assembly; A main sealing seat 15 is installed in the interface pipe 23, and the main valve core group 28 penetrates the main sealing seat 15; The main valve core group and the movable valve core group are installed in the air inlet interface pipe 24. The main valve core group is provided with a valve core main flow channel 101 and a gas channel 102. After the high-pressure gas is diverted by the air flow interface pipe 24, it enters the valve core main flow channel 101 through the air flow channel 102. The movable valve core group is movably sleeved on one end of the main valve core group 28 and is located in the air inlet interface pipe 24. A main valve sealing gasket 16 is installed on the movable valve core group. The flow rate of the gas channel 102 is controlled by the contact degree between the main valve sealing gasket 16 and the main sealing seat 15. The movable valve core group is provided with a pilot flow channel, which guides the pilot gas to flow away from the main sealing seat and then merge into the main flow channel of the valve core. The pilot gas is a part of the gas diverted from the air inlet interface pipe to the main valve core group.

[0024] The drainage cover 22 is installed in the air inlet interface pipe 24, the movable valve core group is movably installed in the drainage cover 22, and a valve core reset power member 23 (optionally, a reset spring) is installed between the inner end of the drainage cover 22 and the end surface of the movable valve core group.

[0025] The movable valve core assembly includes a movable valve core seat 17 and a movable valve core cover 21, and the main valve sealing gasket 16 is installed at the end of the movable valve core seat 17; The movable valve core seat 17 has a valve core cavity with a central hole, the front part of the movable valve core cover 21 is connected to the valve core cavity, and a pilot groove 103 independent of the valve core cavity is provided at the connecting part between the movable valve core cover 21 and the movable valve core seat 17 (the pilot groove can be formed by a rectangular through groove 211 provided on the movable valve core cover), and the air inlet end of the pilot groove is a small gap annular hole 104 formed between the movable valve core seat and the guide cover; A drainage hole 105 is provided between the pilot groove 103 and the valve core cavity to connect the pilot groove and the valve core cavity; One end of the main valve core assembly passes through the valve core cavity and extends to the movable valve core cover; The small gap annular hole 104, the pilot groove 103 and the guide hole 105 constitute the pilot flow channel.

[0026] Furthermore, the drainage hole 105 is opened in the drainage spacer 19, and the drainage spacer 19 is installed in the valve core cavity and fixed by a movable valve core cover with a clamping force. Energy storage sealing rings (energy storage sealing ring B16 and energy storage sealing ring C20) are provided at both ends of the drainage spacer for sealing with the contact surface of the main valve movable valve core seat and the main valve movable core cover.

[0027] The exhaust assembly includes an exhaust seat cover 13, an exhaust valve and an exhaust pipe 25; The exhaust seat sleeve 13 is installed on the main valve core assembly 28, and has an exhaust passage 106 in the exhaust seat sleeve. When the main valve core assembly moves to a specified position, the valve core main flow passage of the main valve core assembly is connected with the exhaust passage. The exhaust pipe is installed on the exhaust seat sleeve through an exhaust valve and communicates with the exhaust passage (such as Figure 4 and Figure 5 as shown).

[0028] The drive assembly acts on the main valve core group 28, such as Figure 1 , Figure 2 and Figure 10-Figure 14 As shown, the driving assembly includes an intermediate connecting pipe 7, a gear box 9, a rack ring 8 and a shift bar 10; The intermediate connecting pipe 7 is connected to the air inlet interface pipe 24, and the main valve core group is located in the intermediate connecting pipe; the gear box is rotatably mounted on the intermediate connecting pipe 7; The rack ring 8 is rotatably mounted on the main valve core assembly 28, and an axial force transmission block 12 is radially mounted between the rack ring and the main valve core assembly. An annular groove 81 for mounting the force transmission block is formed in the rack ring. The lever 10 is rotatably mounted on the gear box 9 via a pin, and one end of the lever 10 is meshed with the rack ring 8 for transmission. A handle 11 is mounted on the lever 10; the handle 11, the lever 10, the gear box 9 and the rack ring 8 rotate synchronously with the axis of the main valve core assembly.

[0029] In order to realize the installation and limiting of the force transmission block, a mounting portion 281 for mounting a rack ring is provided on the main valve core assembly, and a groove 284 for mounting the force transmission block is provided on the mounting portion. An annular groove 81 adapted to the force transmission block 12 is provided inside the rack ring.

[0030] The inflation connection assembly is connected to the intermediate connecting pipe, and the inflation connection assembly includes a locking sleeve 1, a locking tongue 2, a matching positioning frame 3, a sealing bushing 4, an inflation nozzle 5 and a connecting body 6. The connecting body 6 is connected to the intermediate body 7. An energy storage sealing ring D is installed between the main valve core and the connecting body. The inflation nozzle is installed in the connecting body through a sealing bushing. The inflation nozzle 5 is installed on the side of the inflation nozzle close to the main valve core through an inflation nozzle spring 30. The matching positioning frame is connected to the front end of the connecting body. The locking tongue is rotatably installed on the matching positioning frame. The locking sleeve is installed on the periphery of the matching positioning frame through a spring to tighten the locking tongue after the air receiving equipment is connected.

[0031] In order to realize the installation and removal of the main valve core assembly, in one embodiment, the main valve core assembly includes a main valve core 280, a main valve core small diameter sleeve 282 and a fastening sleeve 283. The main valve core 28 comprises a large diameter portion 2801 and a small diameter portion 2802, wherein the small diameter portion is inserted into the movable valve core assembly, and an inclined gas channel 102 is opened at the transition between the large diameter portion and the small diameter portion; The main valve core small diameter sleeve 282 is sleeved on the small diameter part of the main valve core 280, and the fastening sleeve is connected to the front end of the small diameter part by threaded connection, and the main valve core small diameter sleeve 282 is pressed tightly. The main valve core small diameter sleeve is provided with a gas channel 102, and the main valve core small diameter sleeve and the gas channel of the main valve core are connected; A gap channel 108 is provided between the small-diameter sleeve of the main valve core and the small-diameter portion of the main valve core, and one end of the gap channel can be communicated with the pilot flow channel (such as Figure 5 As shown), the other end is connected to the main flow channel of the valve core after passing through the gas channel; illustratively, the gap channel can be formed by a through groove 2021 opened inside the small-diameter sleeve of the main valve core.

[0032] In another embodiment, the drainage spacer may be a part of the main valve movable core seat or the main valve movable core cover; the drainage hole may be opened at the front end of the main valve movable core cover.

[0033] The present invention is used to control high-pressure and high-flow gas. After the valve core is reasonably improved, the pilot flow channel is used to assist the movement of the valve core with the help of the pressure difference at both ends of the valve core, thereby realizing safe and reliable control of high-pressure and high-flow gas. After the valve core is improved, it is easier for workers to control high-pressure and high-flow gas, and it is safer and more controllable to use. At the same time, through the improvement of the drive component and the design of the rack ring, the handle can be rotated around the axis of the main valve core, and the movement of the valve core can be controlled by pushing the handle; avoiding the problem that the traditional controller needs to be in an inconvenient position to pull the handle.

[0034] In another embodiment, a high-pressure gas large-flow rapid filling control method is provided, which is implemented using the high-pressure gas large-flow rapid filling interface controller, and includes a gas source disconnection stage and a ventilation stage; The gas source disconnection stage is to prevent the gas source from entering the gas receiving equipment from the controller. The specific process is: Holding the upper part of the handle 11, pull the handle and the gear box 9 inclined surface limit backward (toward the air source), the handle drives the shift bar 10 to rotate around the positioning pin 31, meshing with the rack ring, and drives the main valve core group 28 to move to the left (toward the air receiving equipment) through the force transmission block 12. When the main valve core group moves to the left, the energy storage sealing ring B and the energy storage sealing ring C generate friction. Under the joint push of the rebound force of the valve core reset power member (reset spring) 23, the movable valve core group moves to the left. The closing process is as follows: Figure 2 and Figure 4 As shown, in this state, Figure 3 As shown, the high-pressure gas enters the inclined hole of the drainage cover through the high-pressure hose and the air inlet interface pipe, then enters the small gap ring hole between the drainage cover 22 and the movable valve core seat 17, and then enters the pilot groove and the gap between the movable valve core cover 21 and the drainage cover 22 to form a high-pressure chamber; at the same time, as shown in FIG. Figure 5 As shown, the gas in the inner cavity of the main valve core group 28 and at both ends enters the exhaust channel of the inlet and exhaust seat sleeve through the middle pore 107, pushes open the exhaust valve core 27 and the exhaust valve core spring 26 of the exhaust valve, and enters the exhaust pipe 25 for exhaust and pressure relief. At this time, if the controller is connected to the air receiving equipment interface, the one-way valve in the air receiving equipment will be closed because the internal pressure is higher than the input end pressure, and the internal gas at the input end will be exhausted and pressure relieved through the exhaust pipe 25; if the controller is not connected to the air receiving equipment interface at this time, the inflation nozzle 5 will contact the O-ring in the sealing sleeve 4 under the force of the inflation nozzle spring 30 to form a seal, and the internal gas will be exhausted and pressure relieved through the exhaust pipe 25. In the above case, the rear part of the movable valve core cover 21 is in the pressure difference between the high-pressure chamber and the pressure relief chamber to generate forward thrust. Under the joint push of the rebound force of the valve core reset power member (reset spring) 23, the movable valve core assembly moves to the left until the sealing surface of the main valve sealing gasket 16 contacts and deforms with the main sealing seat 15, sealing the high-pressure gas, thereby realizing the closed state of the controller. The fully closed state is shown in the schematic diagram. Figure 4 and Figure 5 shown.

[0035] The ventilation stage is to allow the gas source to enter the gas receiving device from the controller. The specific process is: Hold the upper part of the handle 11, push the handle forward and rotate it with the inclined limit of the gear box 9. The handle drives the pull bar 10 to rotate around the positioning pin 31 and mesh with the rack ring 8. The main valve core assembly 28 is driven to move to the right (towards the direction of the air source) through the force transmission block 12 until it contacts the bottom surface of the inner cavity of the main valve movable core cover 21. The opening process is shown in the figure. Figure 6 and Figure 7 As shown; In this state, if Figure 7 As shown, the high-pressure gas is connected to the air inlet interface pipe 24 through a high-pressure hose, enters the inclined hole of the drainage cover 22, and then enters the small gap ring hole between the drainage cover 22 and the movable valve core seat 17, and then enters the pilot groove and the gap between the movable valve core cover 21 and the drainage cover 22 and the energy storage sealing ring B18 and the energy storage sealing ring C20 and the annular gap of the outer cylindrical surface of the small end of the rear part of the main valve core group 28, and then flows into the valve core main flow channel of the main valve core group 28 through the drainage hole, and a decompression chamber is formed in the space behind the small gap ring hole of the movable valve core seat 17.

[0036] At this time, the outer cylindrical surface of the main valve core group 28 contacts and seals with the energy storage seal ring A14 and the energy storage seal ring D 29 to form a sealed channel. At this time, if the controller is connected to the gas receiving equipment interface, the one-way valve in the gas receiving equipment will be closed because the internal pressure is higher than the input end pressure. When the internal gas pressure at the input end increases, the one-way valve will be opened to add gas; At this time, if the controller is not connected to the air receiving equipment, the inflation nozzle 5 contacts the O-ring in the sealing bushing 4 under the force of the inflation nozzle spring 30 to form a seal.

[0037] In the above situation, if Figure 7 As shown in the figure, when the drainage cover continues to pass gas, the pressure difference between the high-pressure chamber and the pressure-reducing chamber of the movable valve core seat 17 generates a rightward thrust. Under the joint push of the handle thrust, the rebound force of the valve core reset power member (reset spring) 23 is overcome, and the movable valve group moves rightward to the main valve sealing gasket 16, and the sealing surface of the main valve sealing gasket is disengaged from the main sealing seat 15, thereby realizing the controller opening state. The fully open state is shown in the figure Figure 8 and Fig. 9 shown.

[0038] The present invention is used to control high-pressure and high-flow gas. After reasonably improving the valve core, the pilot flow channel is used to assist the movement of the valve core with the help of the pressure difference at both ends of the valve core, thereby realizing safe and reliable control of high-pressure and high-flow gas. After improving the valve core, it is easier for workers to control high-pressure and high-flow gas, and the use is also safer and more controllable.

[0039] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-pressure gas large-flow rapid filling interface controller, comprising an air inlet interface pipe, characterized in that: A main valve core group and a movable valve core group are installed in the air intake interface pipe. A main sealing seat is installed in the air inlet interface pipe, and the main valve core group penetrates the main sealing seat; The main valve core assembly is provided with a valve core main flow channel and a gas channel, and the high-pressure gas enters the valve core main flow channel through the gas flow channel after being diverted by the gas flow interface pipe; The movable valve core group is movably sleeved on one end of the main valve core group and is located in the air inlet interface pipe. A main valve sealing gasket is installed on the movable valve core group, and the flow rate of the gas channel is controlled by the contact degree between the main valve sealing gasket and the main sealing seat; The movable valve core group is provided with a pilot flow channel, which guides the pilot gas to flow away from the main sealing seat and then merge into the main flow channel of the valve core. The pilot gas is a part of the gas diverted from the air inlet interface pipe to the main valve core group.

2. According to claim 1, a high-pressure gas large-flow rapid filling interface controller is characterized in that: A flow guide cover is installed in the air inlet interface pipe, the movable valve core group is movably installed in the flow guide cover, and a valve core resetting power part is installed between the inner end of the flow guide cover and the end surface of the movable valve core group.

3. According to claim 2, a high-pressure gas large-flow rapid filling interface controller is characterized in that: The movable valve core assembly includes a movable valve core seat and a movable valve core cover, and the main valve sealing gasket is installed at the end of the movable valve core seat; The movable valve core seat has a valve core cavity with a central hole, the front part of the movable valve core cover is connected to the valve core cavity, and a pilot groove independent of the valve core cavity is provided at the connecting part of the movable valve core cover and the movable valve core seat, and the air inlet end of the pilot groove is a small gap annular hole formed between the movable valve core seat and the guide cover; A drainage hole is provided between the pilot groove and the valve core cavity to connect the pilot groove and the valve core cavity; One end of the main valve core assembly passes through the valve core cavity and extends to the movable valve core cover; The small gap annular hole, the pilot groove and the drainage hole constitute the pilot flow channel.

4. According to claim 3, a high-pressure gas large-flow rapid filling interface controller is characterized in that: The drainage hole is opened in the drainage spacer, and the drainage spacer is installed in the valve core cavity and is fixed by a pressing force given by a movable valve core cover.

5. According to claim 3, a high-pressure gas large-flow rapid filling interface controller is characterized in that: The main valve core group is provided with an exhaust component, which includes an exhaust seat sleeve, an exhaust valve and an exhaust pipe; The exhaust seat cover is installed on the main valve core group, and has an exhaust channel in the exhaust seat cover. When the main valve core group moves to a specified position, the valve core main flow channel of the main valve core group is connected with the exhaust channel; The exhaust pipe is installed on the exhaust seat sleeve through an exhaust valve and communicates with the exhaust passage.

6. A high-pressure gas large-flow rapid filling interface controller according to any one of claims 1 to 5, characterized in that: The main valve core group is equipped with a driving assembly, which includes: an intermediate connecting pipe, a rack ring and a pull rod; The intermediate connecting pipe is connected to the air inlet interface pipe, and the main valve core group is located in the intermediate connecting pipe; The rack ring is rotatably mounted on the main valve core assembly, and an axial force transmission block is radially mounted between the rack ring and the main valve core assembly, and an annular groove for mounting the force transmission block is provided in the rack ring; The shift bar is rotatably installed via a pin shaft, and one end of the shift bar is meshed with the rack ring for transmission.

7. A high-pressure gas large-flow rapid filling interface controller according to claim 6, characterized in that: A mounting portion for mounting a rack ring is provided on the main valve core assembly, and a groove for mounting a force transmission block is formed on the mounting portion.

8. A high-pressure gas large-flow rapid filling interface controller according to claim 6, characterized in that: A gear box is installed on the intermediate connecting pipe, the pin shaft is installed on the gear box, and a handle is installed on the lever sleeve; the handle, the lever, the gear box and the rack ring rotate synchronously with the axis of the main valve core group.

9. A high-pressure gas large-flow rapid filling interface controller according to any one of claims 1-5, 7, and 8, characterized in that: The main valve core assembly includes a main valve core, a main valve core small diameter sleeve and a fastening sleeve. The main valve core comprises a large diameter portion and a small diameter portion, wherein the small diameter portion is inserted into the movable valve core group, and an inclined gas channel is opened at the transition between the large diameter portion and the small diameter portion; The main valve core small diameter sleeve is sleeved on the small diameter part of the main valve core, the fastening sleeve is connected to the front end of the small diameter part and presses the main valve core small diameter sleeve tightly, the main valve core small diameter sleeve is provided with a gas channel, and the main valve core small diameter sleeve and the main valve core gas channel are connected; A gap channel is provided between the small-diameter sleeve of the main valve core and the small-diameter portion of the main valve core. One end of the gap channel is communicated with the pilot flow channel, and the other end is communicated with the main flow channel of the valve core after passing through the gas channel.

10. A high-pressure gas large-flow rapid filling control method, characterized in that: The method is implemented by using the high-pressure gas large-flow rapid filling interface controller as claimed in any one of claims 1 to 9, including a gas source disconnection stage and a ventilation stage; The gas source disconnection stage is to move the main valve core group and the movable valve core group to prevent the gas source from entering the gas receiving device from the controller; The ventilation stage is to move the main valve core group and the movable valve core group to allow the air source to enter the air receiving device from the controller.

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