Screw type high-temperature-resistant intelligent valve

Abstract

The utility model relates to a screw type high-temperature-resistant intelligent valve, and aims to solve the technical problems that the existing similar products are poor in sealing performance, and particularly lack of battery power supply design and inlet and outlet temperature and pressure sensor arrangement. The intelligent valve is characterized in that a sensor circuit board in a groove in one side of a valve port in the top of a valve body in a valve cover of the intelligent valve is provided with an air inlet temperature and pressure sensor and an air outlet temperature and pressure sensor respectively, and detection heads of the air inlet temperature and pressure sensor and the air outlet temperature and pressure sensor extend into an air inlet and an air outlet in the valve body respectively; the sensor circuit board is connected with a PCB in the valve cover through a wiring terminal, the PCB is connected with a positive and negative electrode contact plate in a battery bin on one side of the valve cover through a circuit, and a battery cover is arranged at a cover opening of the battery bin of the valve cover; an inclined via hole is formed between a groove of a sensor circuit board arranged on one side of the top in the valve body and a cavity at the valve seal; and a detection head of a gas inlet temperature and pressure sensor on the sensor circuit board detects gas entering from one side of the gas inlet in the valve body through the inclined via hole.

Description

Technical Field

[0001] This utility model relates to an electric screw gas valve, which is a screw-type high-temperature resistant intelligent valve. Background Technology

[0002] Gas valves are a type of fluid valve, controlling the flow rate of fluid (gas) by changing its cross-section or length. They are generally classified into straight-through and angle types based on the channel configuration, and into needle, groove, and window types based on the shape of the opening and closing elements. Electric screw valves are valves driven by a motor to close or open. These electric screw gas valves primarily use a motor and corresponding gears to move a screw or lead screw up and down, which in turn moves the valve seal up and down to achieve switching. Some electric screw valves are used as gas valves. For example, the Chinese patent document CN219139829U, authorized on June 6, 2023, with the utility model name "Intelligent Industrial Screw Valve for Fluids," is disclosed. However, this product is mainly used as a gas valve; when used as a fluid valve, it lacks the location and use of inlet and outlet temperature and pressure sensors, and also lacks battery box structure and power supply design. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the purpose of this utility model is to provide a screw-type high-temperature resistant intelligent valve that addresses the technical problems of suboptimal structural design, poor sealing, and, in particular, the lack of battery power supply and inlet / outlet temperature and pressure sensors in existing similar products. This objective is achieved through the following technical solution.

[0004] A screw-type high-temperature resistant intelligent valve is disclosed. The valve body has an air inlet and an air outlet on both sides of its bottom. A valve core assembly is located at the top of the valve body between the air inlet and outlet. The valve core assembly is driven by a motor to rotate a screw, which in turn causes the valve seal to close or open the valve body's outlet. A valve cover and a valve body sealing ring are located on the outside of the valve core assembly and on the outside of a groove on the top of the valve body. An aluminum valve protective cover, sealing the valve core assembly, is located on the top of the valve body inside the valve cover. The key structural design feature is that a sensor circuit board inside the groove on the top of the valve body inside the valve cover houses an air inlet temperature and pressure sensor and an air outlet temperature and pressure sensor. The probes of these sensors extend into the air inlet and outlet of the valve body, respectively. The sensor circuit board is connected to a PCB circuit board inside the valve cover via terminals. The PCB circuit board is connected to a positive and negative contact plate in the battery compartment on one side of the valve cover via wiring. A battery cover is located at the opening of the battery compartment of the valve cover. The aforementioned temperature and pressure sensors monitor parameters such as the flow rate, pressure, and temperature of the gas inside the valve body, facilitating valve closure and sealing in cases of overpressure or overtemperature in the pipeline.

[0005] A slanted through-hole is provided between the groove of the sensor circuit board on one side of the top of the valve body and the valve seal chamber. The sensor circuit board is equipped with an outlet temperature and pressure sensor, an inlet temperature and pressure sensor, and corresponding probes. The probe of the outlet temperature and pressure sensor on the sensor circuit board passes through the lower valve body and extends into the outlet of the valve body. The probe of the inlet temperature and pressure sensor on the sensor circuit board detects the gas entering the valve body from the inlet side through the slanted through-hole. Thus, the gas from the inlet is guided into the corresponding cavity of the valve body below the slanted through-hole, realizing the detection of inlet and outlet pressures on the same sensor circuit board.

[0006] The valve core assembly includes a valve seal, a bracket, a sealing plug, a motor base, a screw, a motor gear, a speed-changing gear, a motor, and a motor cover. One end of the bracket is connected to the sealing element. A sealing plug is provided at the top of the motor base. One end of the screw passes through the sealing plug inside the motor base and is connected to the bracket. The other end of the screw is provided with a fixed gear. The fixed gear meshes with the motor gear through the speed-changing gear. The motor gear is fixedly mounted on the motor shaft. The motor cover at the top of the motor is connected to the seat opening at the top of the motor base. The cavity between the motor cover and the sealing plug encapsulates the motor, the motor gear, the speed-changing gear, and the fixed gear.

[0007] The recessed groove of the valve body above the sensor circuit board is provided with an inner plug and a wiring sealing ring to seal the wires extending from the terminal. The sensor circuit board is fixedly installed in the bottom of the groove of the valve body by screws. The sensor circuit board, the inner plug and the wiring sealing ring are encapsulated in the groove of the valve body by an aluminum pressure sensor plate.

[0008] The top end face of the valve cover is provided with a switch button and an indicator light window, which correspond to the electronic components fixedly installed on the PCB circuit board inside the valve cover.

[0009] This utility model has a reasonable structural design, is convenient to use, install and manufacture, and has good sealing and stability. In particular, it has added a valve protective cover, temperature and pressure sensors and power supply settings. It is suitable for use as a screw-type high-temperature resistant intelligent valve, as well as a structural improvement of similar products. Attached Figure Description

[0010] Figure 1 This is an exploded structural diagram of the present invention.

[0011] Figure 2 yes Figure 1 A schematic diagram of the assembled three-dimensional structure.

[0012] Figure 3 yes Figure 2 The diagram shows a top view of the structure, with sections AA and BB shown.

[0013] Figure 4 yes Figure 3 A schematic diagram of the AA section structure, with part A outlined in the diagram.

[0014] Figure 5 yes Figure 4 Enlarged view of part A.

[0015] Figure 6 yes Figure 3 Schematic diagram of the BB cross-section structure.

[0016] Figure 7 yes Figure 2 The diagram shows the internal structure of the valve after the cover is opened. The dotted lines in the diagram represent the aluminum valve protective cover and the aluminum pressure sensor plate.

[0017] Attached Figures and Their Names: 1. Valve Body; 101. Angled Through Hole; 2. Valve Seal; 3. Bracket; 4. Sealing Plug; 5. Motor Mount; 6. Valve Body Sealing Ring; 7. Screw; 8. Motor Gear; 9. Speed ​​Shift Gear; 10. Motor; 11. Motor Cover; 12. Aluminum Valve Protective Cover; 13. Battery Cover; 14. Valve Cover; 1401. Battery Compartment; 15. Aluminum Pressure Sensor Plate; 16. Wiring Sealing Ring; 17. Wiring Terminal; 18. Sensor Circuit Board; 19. PCB Circuit Board; 20. Air Inlet Quick Connector; 21. Detector Head. Implementation

[0018] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-7As shown, the valve body 1 of the intelligent valve has an air inlet and an air outlet on both sides of its bottom. The valve core assembly is located at the top of the valve body between the air inlet and the air outlet. The valve core assembly is driven by the motor 10 to rotate the screw 7. The screw of the screw drives the valve seal 2 to close or open the valve outlet of the valve body. A valve cover 14 and a valve body sealing ring 6 are provided on the valve body outside the valve core assembly and on the valve body outside the groove on the top of the valve outlet. An aluminum valve protective cover 12 is provided on the top of the valve body outside the valve core assembly inside the valve cover to wrap and seal the valve core assembly. The sensor circuit board 18, located in the groove on one side of the valve port at the top of the valve body inside the valve cover, is equipped with an inlet temperature and pressure sensor and an outlet temperature and pressure sensor, respectively. The probes 21 of the inlet and outlet temperature and pressure sensors extend into the inlet and outlet of the valve body, respectively. The sensor circuit board is connected to the PCB circuit board 19 inside the valve cover via a terminal 17. The PCB circuit board is connected to the positive and negative contact plates in the battery compartment 1401 on one side of the valve cover via wiring. A battery cover 13 is provided at the opening of the battery compartment of the valve cover. Specifically, a slanted through hole 101 is provided between the groove on one side of the top of the valve body where the sensor circuit board is located and the valve seal chamber. The sensor circuit board is equipped with an outlet temperature and pressure sensor, an inlet temperature and pressure sensor, and corresponding probes. The probe of the outlet temperature and pressure sensor on the sensor circuit board penetrates the lower valve body and extends into the outlet of the valve body. The probe of the inlet temperature and pressure sensor on the sensor circuit board detects the gas entering the valve body from the inlet side through the slanted through hole. An inlet quick connector 20 is provided at one end of the inlet of the valve body.

[0019] The aforementioned valve core assembly includes a valve seal, a bracket 3, a sealing plug 4, a motor base 5, a screw rod, a motor gear 8, a speed-changing gear 9, a motor, and a motor cover 11. One end of the bracket is connected to the seal. A sealing plug is located at the top of the motor base. One end of the screw rod passes through the sealing plug inside the motor base and connects to the bracket. The other end of the screw rod is equipped with a fixed gear, which meshes with the motor gear through the speed-changing gear. The motor gear is fixedly mounted on the motor shaft. The motor cover at the top of the motor is connected to the seat opening at the top of the motor base. The cavity between the motor cover and the sealing plug encapsulates the motor, motor gear, speed-changing gear, and fixed gear. A recess in the valve body above the sensor circuit board has an inner plug and a wiring sealing ring 16 for sealing the protruding wiring terminals. The sensor circuit board is fixedly installed in the bottom of the recess in the valve body with screws. The sensor circuit board, inner plug, and wiring sealing ring are encapsulated in the recess of the valve body by an aluminum pressure sensor plate 15. The top end face of the valve cover is equipped with a switch button and an indicator light window, which correspond to the electronic components fixedly installed on the PCB circuit board inside the valve cover.

[0020] The intelligent valve's motor drives a speed-changing gear via a motor gear, which in turn drives the fixed gear of the screw component to rotate. After one revolution, the fixed gear engages with the lead screw, causing the lead screw of the screw component to rotate. The lead screw then drives the bracket to move the valve seal up and down, thus opening and closing the valve. The aluminum components of the aforementioned parts, under high-temperature conditions, reduce the internal temperature of the product, ensuring the valve's sealing condition; the corresponding pressure sensor monitors parameters such as gas flow, pressure, and temperature in real time.

Claims

1. A screw-type high-temperature resistant intelligent valve, wherein the valve body (1) has an air inlet and an air outlet on both sides of its bottom, and a valve core assembly is provided at the top valve port between the air inlet and the air outlet. The valve core assembly is driven by a motor (10) to rotate a screw (7), and the screw drives a valve seal (2) to close or open the valve port of the valve body. A valve cover (14) and a valve body sealing ring (6) are provided on the valve body outside the valve core assembly and on the valve body outside the groove on one side of the top valve port. An aluminum valve protective cover (12) is provided on the top of the valve body outside the valve core assembly inside the valve cover to cover and seal the valve core assembly. The valve cover (14) is equipped with an inlet temperature and pressure sensor and an outlet temperature and pressure sensor respectively in the groove of the valve port side of the valve body (1) at the top. The probes (21) of the inlet temperature and pressure sensor and the outlet temperature and pressure sensor extend into the inlet and outlet of the valve body respectively. The sensor circuit board is connected to the PCB circuit board (19) inside the valve cover through the wiring terminal (17). The PCB circuit board is connected to the positive and negative contact plate in the battery compartment (1401) on one side of the valve cover through the line. The battery compartment of the valve cover is provided with a battery cover (13).

2. The high temperature resistant intelligent valve of claim 1, wherein The valve body (1) has a groove for a sensor circuit board (18) on one side of the top, and an oblique through hole (101) is provided between the groove and the chamber at the valve seal (2). The sensor circuit board is equipped with an outlet temperature and pressure sensor, an inlet temperature and pressure sensor and a corresponding probe (21). The probe of the outlet temperature and pressure sensor on the sensor circuit board passes through the lower valve body and extends into the outlet of the valve body. The probe of the inlet temperature and pressure sensor on the sensor circuit board detects the gas entering the valve body from the inlet side through the oblique through hole.

3. The high temperature resistant intelligent valve of claim 1, wherein The valve core assembly includes a valve seal (2), a bracket (3), a sealing plug (4), a motor base (5), a screw (7), a motor gear (8), a speed-changing gear (9), a motor (10), and a motor cover (11). One end of the bracket is connected to the sealing element. A sealing plug is provided at the top of the motor base. One end of the screw rod passes through the sealing plug inside the motor base and is connected to the bracket. The other end of the screw rod is provided with a fixed gear. The fixed gear meshes with the motor gear through the speed-changing gear. The motor gear is fixedly mounted on the motor shaft of the motor. The motor cover at the top of the motor is connected to the seat opening at the top of the motor base. The cavity between the motor cover and the sealing plug encapsulates the motor, the motor gear, the speed-changing gear, and the fixed gear.

4. The high temperature resistant intelligent valve of claim 1, wherein The groove of the valve body (1) above the sensor circuit board (18) is provided with an inner plug and a wiring sealing ring (16) for sealing the wires extending from the wiring terminal (17). The sensor circuit board is fixedly installed in the bottom of the groove of the valve body by screws. The sensor circuit board, the inner plug and the wiring sealing ring are encapsulated in the groove of the valve body by an aluminum pressure sensor plate (15).

5. The high temperature resistant intelligent valve of claim 1, wherein The top end face of the valve cover (14) is provided with a switch button and an indicator light window, which correspond to the electronic components fixedly installed on the PCB circuit board (19) inside the valve cover.

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