Intelligent gas pressure regulator

Abstract

The utility model discloses an intelligent gas pressure regulator, which belongs to the technical field of gas pressure regulation and is characterized in that a gas inlet channel and a gas outlet channel are arranged in a shell; a first-stage pressure reduction bin and a second-stage pressure reduction bin are arranged between the air inlet channel and the air outlet channel; the first-stage pressure adjusting assembly is used for adjusting the air inlet amount of the first-stage pressure reducing bin; the second-stage pressure adjusting assembly is used for adjusting the air inlet amount of the second-stage pressure reducing bin. A driving assembly is arranged on the secondary pressure regulating assembly; a flow pressure sensor is arranged on the air outlet channel; the flow pressure sensor is used for detecting the flow pressure of the gas outlet channel and transmitting a signal to the driving device, and the driving device closes the gas channel. The intelligent fuel gas pressure regulator can effectively solve the problems that when a fuel gas pressure regulating valve in the prior art is in butt joint with a gas stove and other using equipment with the minimum fuel gas flow requirement, leakage of micro flow lower than the minimum fuel gas using amount occurs, and therefore certain life or property losses are caused.

Description

Technical Field

[0001] This utility model belongs to the field of gas pressure regulation technology. Specifically, it relates to an intelligent gas pressure regulator. Background Technology

[0002] In current gas supply systems, after gas is output from liquefied petroleum gas (LPG) cylinders, commonly known as steel cylinders, it typically needs to pass through a pressure regulating valve to ensure a safe and efficient supply to various gas-using devices (such as gas stoves, gas water heaters, and gas boilers). This step is crucial because it ensures that the gas pressure meets the operating pressure requirements of the subsequent equipment, preventing equipment malfunctions or safety hazards caused by excessively high or low pressure.

[0003] Traditional pressure regulating valve designs typically employ a primary and secondary regulation mechanism to achieve precise control of gas pressure. Primary regulation is usually used to reduce the gas supply pressure from a higher level to a relatively lower intermediate pressure range, while secondary regulation further adjusts the intermediate pressure to the precise pressure value required by the gas-using equipment. This tiered regulation method improves the flexibility and stability of the gas supply to some extent.

[0004] However, in practical applications, existing pressure regulating valve designs have also revealed some limitations. In particular, excessive damage or even complete detachment of the pipes connected to the downstream end of existing pressure regulating valves can lead to overflow. Furthermore, when connected to gas stoves and other gas-using appliances, their operation requires a certain gas flow rate. Even small holes caused by pipe aging or minor loosening can result in gas leaks, leading to insufficient gas flow. When the required gas flow is not met, the gas stove and other appliances cannot operate. In severe cases, gas leaks pose a serious threat to the lives and property of users. Utility Model Content

[0005] The purpose of this utility model is to provide an intelligent gas pressure regulator to address the aforementioned shortcomings. This solves the problem that existing gas pressure regulating valves, when connected to appliances with minimum gas flow requirements such as gas stoves, often fail to meet the required flow, leading to minor gas leaks and potential loss of life or property. To achieve this objective, this utility model provides the following technical solution:

[0006] An intelligent gas pressure regulator includes a housing; an inlet channel and an outlet channel are provided within the housing; a primary pressure reducing chamber and a secondary pressure reducing chamber are provided between the inlet channel and the outlet channel; the inlet channel, the primary pressure reducing chamber, the secondary pressure reducing chamber, and the outlet channel are sequentially connected; a primary pressure regulating component is provided within the primary pressure reducing chamber; a secondary pressure regulating component is provided within the secondary pressure reducing chamber; the primary pressure regulating component is used to regulate the air intake of the primary pressure reducing chamber; the secondary pressure regulating component is used to regulate the air intake of the secondary pressure reducing chamber; a drive component is provided on the secondary pressure regulating component; a flow and pressure sensor is provided on the outlet channel; the flow and pressure sensor is used to detect the flow and pressure of the outlet channel and transmit the signal to the drive device, which then closes the gas channel.

[0007] Furthermore, the primary pressure regulating assembly includes a primary diaphragm and a primary adjusting rod; the primary diaphragm is sealed and connected inside the housing and located inside the primary pressure reducing chamber; the primary adjusting rod is connected to the primary diaphragm and located at the connection between the air intake channel and the primary pressure reducing chamber; the primary diaphragm can extend to drive the primary adjusting rod to adjust the air intake volume from the air intake channel to the primary pressure reducing chamber.

[0008] Furthermore, the upper end of the first-stage adjusting rod is provided with a plunger section; the movement of the first-stage adjusting rod can cause the plunger section to block the connection between the air intake channel and the first-stage decompression chamber.

[0009] Furthermore, the primary pressure regulating assembly also includes a first elastic component and a second elastic component disposed within the housing; the first elastic component acts on the lower end of the primary diaphragm; and the second elastic component acts on the upper end of the plunger portion.

[0010] Furthermore, the secondary pressure regulating assembly includes a secondary diaphragm and a secondary adjusting rod; the secondary diaphragm is sealed and connected inside the housing and located inside the secondary pressure reducing chamber; the secondary adjusting rod is connected to the secondary diaphragm and located at the connection between the primary pressure reducing chamber and the secondary pressure reducing chamber; the secondary diaphragm can extend to drive the secondary adjusting rod to adjust the air intake from the primary pressure reducing chamber to the secondary pressure reducing chamber.

[0011] Furthermore, the secondary pressure regulating assembly also includes an adjusting lever rotatably connected within the housing; the lower end of the secondary adjusting rod is connected to the adjusting lever; an air inlet is provided between the primary pressure reducing chamber and the secondary pressure reducing chamber; the extension movement of the secondary diaphragm drives the secondary adjusting rod to move, thereby causing the adjusting lever to cover the air inlet.

[0012] Furthermore, the secondary voltage regulating assembly also includes a third elastic component disposed within the housing; the third elastic component acts on the lower end of the secondary diaphragm.

[0013] Furthermore, the drive assembly includes a drive motor, a drive wheel, a driven wheel, a rotating lead screw shaft, and a connecting block; the output end of the drive motor is connected to the drive wheel; the driven wheel meshes with the drive wheel and is rotatably connected inside the housing; the rotating lead screw shaft is coaxially and fixedly connected to the driven wheel; a connecting block is fitted onto the rotating lead screw shaft; the connecting block is fixedly connected to the upper end of the secondary adjusting rod; the rotation of the rotating lead screw shaft can drive the connecting block to move up and down.

[0014] Furthermore, it also includes a controller; the controller is electrically connected to the flow and pressure sensor and the drive motor respectively; the flow and pressure sensor transmits signals to the controller, and the controller controls the output of the drive motor.

[0015] Furthermore, a reset device is provided on one side of the housing located in the air intake channel; a flow pad is provided in the air intake channel; a steel ball is provided at the front end of the flow pad; the steel ball can contact the flow pad under pressure difference to block the air intake channel; the reset device is used to remove the steel ball from the flow pad, so that the air intake channel is unobstructed.

[0016] The beneficial effects of this utility model are:

[0017] This invention relates to an intelligent gas pressure regulator. Through the cooperation of a flow and pressure sensor installed in the gas outlet channel, a drive device on the secondary pressure regulating component, and a controller, the flow and pressure sensor detects insufficient gas flow at the gas outlet channel and sends feedback to the controller. The controller then controls the drive motor to close the gas inlet at the secondary pressure regulating component, preventing loss of life and property due to gas leakage. This invention also includes a flow pad, a steel ball, and a reset device on one side of the gas inlet channel. If the downstream pipeline becomes detached or damaged, causing an abnormally high flow rate, the pressure difference across the steel ball becomes excessive, squeezing the steel ball onto the flow pad and closing the gas passage. Once the pipeline is reconnected or replaced, the reset switch removes the steel ball from the flow pad, restoring the gas passage. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a side view of the present invention;

[0021] In the attached diagram: 1-Housing; 2-Inlet channel; 3-Outlet channel; 4-Flow and pressure sensor; 5-First-stage diaphragm; 6-First-stage adjusting rod; 7-Plunger section; 8-First elastic component; 9-Second elastic component; 10-Second-stage diaphragm; 11-Second-stage adjusting rod; 12-Adjusting lever; 13-Third elastic component; 14-Drive motor; 15-Driving wheel; 16-Driven wheel; 17-Rotating lead screw shaft; 18-Connecting block; 19-Flow pad; 20-Steel ball; 21-Pressing rod; 22-Fourth elastic component. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] See attached Figures 1-3 A smart gas pressure regulator includes a housing 1, with an inlet channel 2, a primary pressure reducing chamber, a secondary pressure reducing chamber, and an outlet channel 3 extending from one end of the housing 1 to the other. The primary pressure reducing chamber contains a primary pressure regulating component, and the secondary pressure reducing chamber contains a secondary pressure regulating component. After gas is output from the gas supply equipment, it is gradually reduced in pressure by the primary and secondary pressure reducing components, ensuring that the gas pressure in the outlet channel 3 meets the requirements of the gas-using equipment. A flow and pressure sensor 4 is also installed on the outlet channel 3. The secondary pressure regulating component has a drive component that detects the gas flow and controls the drive component to close either the secondary or primary pressure reducing chamber, preventing minor gas leaks.

[0026] Firstly, a flow pad 19 is installed in the air intake channel 2. A steel ball 20 is installed at the front end of the flow pad 19. The diameter of the steel ball 20 is larger than that of the flow pad 19. When the regulator experiences a pipe disconnection or abnormal situation at the rear end during normal operation, causing the flow rate to exceed the specified value, a pressure difference is created between the front and rear of the steel ball. The steel ball 20, under the pressure difference, quickly contacts the flow pad 19, sealing the air intake channel 2 and shutting down the entire regulator to prevent gas leakage. A reset device is installed directly above the steel ball 20. It consists of a pressing rod 21 and a fourth elastic component 22. The pressing rod 21 passes through the housing 1 from the outside and enters the air intake channel 2 above the steel ball 20. A sealing rubber gasket is installed at the connection between the pressing rod 21 and the housing 1. The upper end of the pressing rod 21 is fixedly connected by the fourth elastic component 22. Pressing the pressing rod 21 downwards causes it to contact the steel ball 20, separating the steel ball 20 from the flow pad 19 and completing the reset. After the pressing pressure is released, the pressing rod 21 returns to its original position under the force of the fourth elastic component 22.

[0027] The primary pressure reducing assembly includes a first elastic component 8, a primary adjusting rod 6, a primary diaphragm 5, and a second elastic component 9. The primary diaphragm 5 is sealed to the inside of the housing 1 and is located at the lower end of the primary pressure reducing chamber. The primary adjusting rod 6 is fixedly connected to the upper side of the primary diaphragm 5, and a plunger 7 is connected to the upper end of the primary adjusting rod 6. The plunger 7 is located at the connection port between the intake channel 2 and the primary pressure reducing chamber. Gas enters the primary pressure reducing chamber through the intake channel 2 and the connection port. The primary diaphragm 5 inside the primary pressure reducing chamber is squeezed by the gas pressure, causing it to extend downwards. This causes the primary adjusting rod 6 to move downwards. The plunger 7 on the primary adjusting rod 6 gradually blocks the connection port between the intake channel 2 and the primary pressure reducing chamber, thus gradually reducing the amount of gas entering the primary pressure reducing chamber and lowering the gas pressure inside. The first elastic component 8 is located below the primary diaphragm 5. After the pressure inside the primary pressure reducing chamber decreases, the first elastic component 8 causes the primary diaphragm 5 to recover upwards, thereby causing the plunger 7 to move upwards and separate from the connection port, continuing to ensure gas flow. The upper end of the plunger section 7 is provided with a second elastic component 9. After the pressure in the primary pressure-reducing chamber decreases, the second elastic component 9 can drive the plunger section 7 to move upward, thereby disengaging from the communication port. The connection between the primary adjusting rod 6 and the primary diaphragm 5 can be fixed by welding or other methods, as should be understood by those skilled in the art. The specific pressure in the primary pressure-reducing chamber can be adjusted by adjusting the elastic force of the first elastic component 8 below the primary diaphragm 5. It can be adjusted according to specific circumstances.

[0028] The primary and secondary pressure chambers are connected by an air passage. An air inlet is provided at the front of the air passage. The gas from the primary pressure chamber enters the air passage through the air inlet and then enters the secondary pressure chamber. The secondary pressure chamber assembly includes a secondary diaphragm 10, a secondary adjusting rod 11, and an adjusting lever 12. The upper end of the secondary pressure chamber is sealed with the secondary diaphragm 10. The secondary adjusting rod 11 passes through the secondary diaphragm 10. The adjusting lever 12 is connected below the secondary adjusting rod 11. The adjusting lever 12 is rotatably connected inside the housing 1, for example, through the cooperation of a bearing mounting seat and a bearing, which should be understood by those skilled in the art. One end of the adjusting lever 12 is located below the air inlet. When the pressure in the second pressure-reducing chamber is too high, it will squeeze the secondary diaphragm 10 upwards, thereby causing the secondary adjusting rod 11 to move. The adjusting lever 12 at the lower end of the secondary adjusting rod 11 closes the air inlet. As the gas in the secondary pressure-reducing chamber is gradually consumed and the pressure drops, the third elastic component 13 above the secondary diaphragm 10 causes the secondary diaphragm 10 to return to its original shape, which in turn causes the adjusting lever 12 to open the air inlet, allowing gas to flow and forming a pressure balance. Adjusting the elastic force of the third elastic component 13 above the secondary diaphragm 10 can regulate the specific pressure in the secondary pressure-reducing chamber.

[0029] The drive assembly includes a drive motor 14 housed within the housing 1. A drive wheel 15 is fixedly connected to the output end of the drive motor 14. The drive wheel 15 meshes with a driven wheel 16, which is connected to the housing 1 via a bearing mounting seat and bearing. A rotating lead screw shaft 17 is coaxially fixedly connected to the driven wheel 16, and a connecting block 18 is fitted onto the rotating lead screw shaft 17. The rotation of the drive motor 14 sequentially transmits power to the drive wheel 15 and the driven wheel 16, causing the rotating lead screw shaft 17 to rotate. The connecting block 18 moves along the axial direction of the rotating lead screw shaft 17. The connecting block 18 is fixedly connected to the upper end of the secondary regulating rod 11, thereby driving the movement of the secondary regulating rod 11 and ultimately controlling the regulating lever 12 to open and close the air inlet. The structure of the drive assembly is not limited to being located within the secondary pressure reducing chamber to close the gas passage; it can also be adapted to be located within the housing corresponding to the primary pressure reducing chamber to control the closure of the gas passage within the primary pressure reducing chamber. A flow and pressure sensor 4 is installed on the gas outlet channel 3. This sensor detects the gas flow rate within the channel. If a minor gas leak occurs due to aging pipes, small holes, or loosening of the pipes, resulting in insufficient gas flow and preventing downstream appliances such as gas stoves from operating, the flow and pressure sensor 4 detects the leak and transmits the signal to the controller. The controller then controls the drive motor 14 to move, thereby closing the gas inlet nozzle and preventing safety hazards such as poisoning, fire, or explosion caused by the leak. Furthermore, a reset button is installed on the drive motor 14, located outside the housing 1. Pressing the reset button causes the drive motor 14 to rotate in the opposite direction, thus controlling the adjusting lever 12 to open the gas inlet nozzle. The connection and control relationship between the reset button and the drive motor 14 is understandable to those skilled in the art.

[0030] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A smart gas pressure regulator, characterized in that: The device includes a housing (1); the housing (1) is provided with an air inlet channel (2) and an air outlet channel (3); a primary pressure reducing chamber and a secondary pressure reducing chamber are provided between the air inlet channel (2) and the air outlet channel (3); the air inlet channel (2), the primary pressure reducing chamber, the secondary pressure reducing chamber and the air outlet channel (3) are connected in sequence; a primary pressure regulating component is provided in the primary pressure reducing chamber; a secondary pressure regulating component is provided in the secondary pressure reducing chamber; the primary pressure regulating component is used to regulate the air intake of the primary pressure reducing chamber; the secondary pressure regulating component is used to regulate the air intake of the secondary pressure reducing chamber; a drive component is provided on the secondary pressure regulating component; a flow pressure sensor (4) is provided on the air outlet channel (3); the flow pressure sensor (4) is used to detect the flow of the air outlet channel (3) and transmit the signal to the drive device, which then closes the gas passage.

2. The intelligent gas pressure regulator according to claim 1, characterized in that: The primary pressure regulating assembly includes a primary diaphragm (5) and a primary regulating rod (6); the primary diaphragm (5) is sealed and connected inside the housing (1) and located inside the primary pressure reducing chamber; the primary regulating rod (6) is connected to the primary diaphragm (5) and located at the connection between the air intake channel (2) and the primary pressure reducing chamber; the primary diaphragm (5) can extend to drive the primary regulating rod (6) to adjust the air intake volume from the air intake channel (2) to the primary pressure reducing chamber.

3. The intelligent gas pressure regulator according to claim 2, characterized in that: The upper end of the first-stage adjusting rod (6) is provided with a plunger part (7); the movement of the first-stage adjusting rod (6) can drive the plunger part (7) to block the connection between the air intake channel (2) and the first-stage decompression chamber.

4. The intelligent gas pressure regulator according to claim 3, characterized in that: The primary pressure regulating assembly further includes a first elastic component (8) and a second elastic component (9) disposed within the housing (1); the first elastic component (8) acts on the lower end of the primary diaphragm (5); and the second elastic component (9) acts on the upper end of the plunger (7).

5. The intelligent gas pressure regulator according to claim 1, characterized in that: The secondary pressure regulating assembly includes a secondary diaphragm (10) and a secondary regulating rod (11); the secondary diaphragm (10) is sealed and connected inside the housing (1) and located inside the secondary pressure reducing chamber; the secondary regulating rod (11) is connected to the secondary diaphragm (10) and located at the connection between the primary pressure reducing chamber and the secondary pressure reducing chamber; the secondary diaphragm (10) can extend to drive the secondary regulating rod (11) to adjust the air intake from the primary pressure reducing chamber to the secondary pressure reducing chamber.

6. The intelligent gas pressure regulator according to claim 5, characterized in that: The secondary pressure regulating assembly also includes an adjusting lever (12) rotatably connected inside the housing (1); the lower end of the secondary adjusting rod (11) is connected to the adjusting lever (12); an air inlet is provided between the primary pressure reducing chamber and the secondary pressure reducing chamber; the extension movement of the secondary diaphragm (10) drives the secondary adjusting rod (11) to move, thereby driving the adjusting lever (12) to cover the air inlet.

7. The intelligent gas pressure regulator according to claim 5, characterized in that: The secondary voltage regulating assembly also includes a third elastic component (13) disposed within the housing (1); the third elastic component (13) acts on the lower end of the secondary diaphragm (10).

8. The intelligent gas pressure regulator according to claim 5, characterized in that: The drive assembly includes a drive motor (14), a drive wheel (15), a driven wheel (16), a rotating lead screw shaft (17), and a connecting block (18); the output end of the drive motor (14) is connected to the drive wheel (15); the driven wheel (16) meshes with the drive wheel (15) and is rotatably connected inside the housing (1); the rotating lead screw shaft (17) is coaxially and fixedly connected to the driven wheel (16); the connecting block (18) is fitted on the rotating lead screw shaft (17); the connecting block (18) is fixedly connected to the upper end of the secondary adjusting rod (11); the rotation of the rotating lead screw shaft (17) can drive the connecting block (18) to move up and down.

9. A smart gas pressure regulator according to claim 8, characterized in that: It also includes a controller; the controller is electrically connected to the flow pressure sensor (4) and the drive motor (14) respectively; the flow pressure sensor (4) transmits signals to the controller, and the controller controls the output of the drive motor (14).

10. The intelligent gas pressure regulator according to claim 1, characterized in that: A reset device is provided on one side of the air intake channel (2) on the housing (1); a flow pad (19) is provided on the air intake channel (2); a steel ball (20) is provided at the front end of the flow pad (19); the steel ball (20) can contact the flow pad (19) under pressure difference to block the air intake channel (2); the reset device is used to remove the steel ball (20) from the flow pad (19) so that the air intake channel (2) is unobstructed.

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