CN217713821U - Electric actuator for gas valve - Google Patents
Electric actuator for gas valve Download PDFInfo
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- CN217713821U CN217713821U CN202220597090.7U CN202220597090U CN217713821U CN 217713821 U CN217713821 U CN 217713821U CN 202220597090 U CN202220597090 U CN 202220597090U CN 217713821 U CN217713821 U CN 217713821U
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Abstract
The utility model discloses an electric actuator for gas valve, which relates to the field of gas ball valves, and comprises a motor, an actuating mechanism for driving the ball valve to control the opening and closing of a ventilation channel of the ball valve, a first acquisition module for acquiring the working state of the motor, a central controller and a power module, wherein the power output end of the motor is connected with the power input end of the actuating mechanism, the action end of the actuating mechanism acts on a valve rod of the ball valve, and the central controller is used for controlling the working state of the motor; the motor is directly powered through the built-in power module, the power is not required to be supplied to the motor from the outside through wiring, safety risks caused by wiring are avoided, meanwhile, the working state of the motor is collected through the first collection module, the motor is monitored by combining the central controller, and meanwhile, the state of the motor can be transmitted to the remote terminal to achieve remote monitoring.
Description
Technical Field
The utility model relates to a gas ball valve field especially relates to an electric actuator for gas valve.
Background
The electric actuators have a wide application range, including large electric actuators applied to long-distance gas or petroleum pipelines, and small electric actuators applied to household or industrial and commercial gas pipelines and tap water pipelines. Domestic gas or industry and commerce gas pipeline mainly adopts manual ball valve or based on the small-size electric actuator of manual ball valve transformation, and this kind of electric actuator needs the power more than 12V just can drive, and must external 220V power, therefore requires to have and connects electric socket and external power line, increases the safety risk. Although some electric valves without external power lines appear in the prior art, such as the patent No. CN202120594691.8, the patent name NB-IOT electric control valve, published as 20211228, the patent still has the problem that the gas leakage cannot be detected, which may cause installation accidents.
SUMMERY OF THE UTILITY MODEL
The object of the utility model is to design an electric actuator for gas valve in order to solve the above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
an electric actuator for a gas valve, comprising:
a motor;
the actuating mechanism is used for controlling the opening and closing of the ventilation channel of the ball valve; the power output end of the motor is connected with the power input end of the actuating mechanism, and the action end of the actuating mechanism acts on the valve rod of the ball valve;
the first acquisition module is used for acquiring the working state of the motor;
a central controller; the central controller is used for controlling the working state of the motor, the data signal output end of the first acquisition module is connected with the data signal input end of the central controller, and the control signal output end of the central controller is connected with the control signal input end of the motor;
a power supply module; the power module is used for supplying power to the motor, the first acquisition module and the central controller, and a signal end of the power module is connected with a signal end of the central controller.
The beneficial effects of the utility model reside in that: the built-in power module directly provides power for the motor, the motor is not required to be provided with power from the outside through wiring, safety risks caused by wiring are avoided, meanwhile, the working state of the motor is collected through the first collection module, the motor is monitored by combining the central controller, and meanwhile, the state of the motor can also be transmitted to a remote terminal to realize remote monitoring; the detection end through setting up the second collection module always communicates with the inlet end of the passageway of ventilating, no matter whether the ball valve is in the closure state, can guarantee that the detection end of second collection module can always carry out the measuring of temperature and pressure to the inlet end of ball valve, avoids appearing the gas leakage incident.
Drawings
Fig. 1 is a schematic structural diagram of an electric actuator for a gas valve according to the present invention;
fig. 2 is a schematic diagram of the internal structure of the electric actuator for a gas valve according to the present invention;
fig. 3 is a schematic structural diagram of a compression spring in the electric actuator for a gas valve according to the present invention;
wherein corresponding reference numerals are:
1-motor, 2-microswitch, 3-actuator, 4-ball valve, 5-temperature and pressure sensor, 6-bearing, 7-valve rod, 8-ventilation channel, 9-sealing element, 10-threaded rod, 11-valve seat, 12-installation channel, 13-rubber ring, 14-push cylinder, 15-compression spring and 16-valve core.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, an electric actuator for a gas valve includes:
a motor 1;
the actuating mechanism 3 is used for controlling the opening and closing of the vent passage 8 of the ball valve 4; the power output end of the motor 1 is connected with the power input end of the actuating mechanism 3, and the action end of the actuating mechanism 3 acts on the valve rod 7 of the ball valve 4;
the first acquisition module is used for acquiring the working state of the motor 1 and is a microswitch 2;
a central controller; the central controller is used for controlling the working state of the motor 1, the data signal output end of the first acquisition module is connected with the data signal input end of the central controller, and the control signal output end of the central controller is connected with the control signal input end of the motor 1;
a power supply module; the power module is used for supplying power to the motor 1, the first acquisition module and the central controller, and a signal end of the power module is connected with a signal end of the central controller.
After the power is on, the motor 1 drives the valve rod 7 of the ball valve 4 to rotate through the actuating mechanism 3, so that the valve core 16 is driven to move, and the opening and closing functions of the ball valve 4 are realized.
The electric actuator also comprises a second acquisition module for detecting the temperature and the pressure of the air inlet end of the ventilation channel 8, the detection end of the second acquisition module is always communicated with the air inlet end of the ventilation channel 8, and the data signal output end of the second acquisition module is connected with the data signal input end of the central controller.
The electric actuator also comprises a detection module for detecting whether the motor 1 is locked, and the signal end of the detection module is connected with the signal end of the central controller.
The detection module comprises a timing module and a judgment module, the timing module is used for calculating the electrifying time of the motor 1, the judgment module is used for judging whether the ball valve 4 is switched in place in preset time, a data signal input end and a data signal output end of the timing module are respectively connected with a data signal output end of the central controller and a data signal input end of the judgment module, and a data signal output end of the judgment module is connected with a data signal input end of the central controller.
When the motor 1 is electrified, the timing module records time length and transmits the time length signal to the judging module, when the preset time is exceeded, the judging module does not receive the signal that the ball valve 4 is switched in place, the motor 1 is judged to be in abnormal locked rotor state, the result is transmitted to the central controller, the central controller controls the power supply module to stop supplying power to the motor 1, and damage to the motor 1 due to long-time locked rotor is avoided.
The electric actuator further comprises a sealing piece 9 and a threaded rod 10 which are used for blocking the circulation of gas inside and outside the ball valve 4, an installation channel 12 is arranged on a valve seat 11 of the ball valve 4, the detection end of a second acquisition module is fixedly installed at the first end of the installation channel 12, the first end of the installation channel 12 is always communicated with the gas inlet end of the ventilation channel 8, the second end of the installation channel 12 is provided with threads, the threaded rod 10 is in threaded connection with the second end of the installation channel 12, a step is arranged on the installation channel 12, the sealing piece 9 is installed between the step and the threaded rod 10, two sides of the sealing piece 9 are in extrusion contact with the step and the threaded rod 10 respectively, the second acquisition module is a temperature and pressure sensor 5, the sealing piece 9 is arranged outside the temperature and pressure sensor 5, the temperature and pressure sensor 5 is fixed through the threaded rod 10, meanwhile, the sealing piece 9 is extruded by the threaded rod 10 to realize the sealing of the temperature and pressure sensor 5, and the mounting position of the temperature and pressure sensor 5 is guaranteed to be airtight.
The electric actuator further comprises a push cylinder 14 and an elastic piece, the push cylinder 14 is installed at the air inlet end of the ventilation channel 8, the push cylinder 14 is always in pressing contact with the valve core 16, the acting force of the elastic piece on the push cylinder 14 is always towards the valve core 16, and the outer diameter of the push cylinder 14 is smaller than the diameter of the ventilation channel 8 at the installation position of the push cylinder 14.
The valve seat 11 is provided with an installation channel 12 for installing the temperature and pressure sensor 5, the position of the installation channel 12 is positioned below the valve core 16, and no matter whether the ball valve 4 is in a closed state or not, the installation channel 12 is always communicated with the air inlet end of the ball valve 4, so that the detection end of the temperature and pressure sensor 5 can always detect the temperature and the pressure of the air inlet end of the ball valve 4.
The elastic part is a compression spring 15, and two ends of the compression spring 15 are respectively in pressing contact with the valve seat 11 and the push cylinder 14.
The air outlet end of the vent passage 8 of the ball valve 4 is provided with a rubber ring 13, and the rubber ring 13 is always in extrusion contact with the side wall of the valve core 16; the valve core 16 is always in close contact with the rubber ring 13, so that the sealing function is realized, the friction torque can be reduced, and the power consumption of the motor 1 for driving the ball valve 4 is reduced.
A bearing 6 is arranged on the outer wall of the valve rod 7, and the outer ring of the bearing 6 is fixedly connected with the valve seat 11; in order to reduce the resistance of the ball valve 4 in the movement process, the functions of positioning and lubricating can be realized at the same time.
The control methods of the electric actuator are divided into two types: one is that the central controller receives a remote control instruction, then controls the power module to supply power to the motor 1, drives the ball valve 4 to open or close through the actuating mechanism 3, and after the ball valve is in place, the central controller receives a in-place signal of the microswitch 2 and controls the power module to stop supplying power to the motor 1; the other is that the temperature and pressure sensor 5 detects that the gas temperature and pressure are abnormal, the central controller receives signals of the temperature and pressure sensor 5 and judges whether the ball valve 4 is in a closed state, if the ball valve 4 is not in the closed state, the power supply module is controlled to supply power to the motor 1, the execution mechanism 3 drives the ball valve 4 to be closed, and after the ball valve is in place, the central controller receives a signal of the microswitch 2 in place and stops supplying power to the motor 1.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (8)
1. An electric actuator for a gas valve, comprising:
a motor;
the actuating mechanism is used for controlling the opening and closing of the ventilation channel of the ball valve; the power output end of the motor is connected with the power input end of the actuating mechanism, and the action end of the actuating mechanism acts on the valve rod of the ball valve;
the first acquisition module is used for acquiring the working state of the motor;
a central controller; the central controller is used for controlling the working state of the motor, the data signal output end of the first acquisition module is connected with the data signal input end of the central controller, and the control signal output end of the central controller is connected with the control signal input end of the motor;
a power supply module; the power supply module is used for supplying power to the motor, the first acquisition module and the central controller, and a signal end of the power supply module is connected with a signal end of the central controller;
and the second acquisition module is used for detecting the temperature and the pressure of the air inlet end of the ventilation channel, the detection end of the second acquisition module is always communicated with the air inlet end of the ventilation channel, and the data signal output end of the second acquisition module is connected with the data signal input end of the central controller.
2. The electric actuator for a gas valve as recited in claim 1, further comprising a detection module for detecting whether the motor is locked, wherein a signal terminal of the detection module is connected to a signal terminal of the central controller.
3. The electric actuator for the gas valve as recited in claim 2, wherein the detection module comprises a timing module and a judgment module, the timing module is used for calculating the time length of the power-on of the motor, the judgment module is used for judging whether the ball valve is in place or not within the preset time, a data signal input end and a data signal output end of the timing module are respectively connected with a data signal output end of the central controller and a data signal input end of the judgment module, and a data signal output end of the judgment module is connected with a data signal input end of the central controller.
4. The electric actuator for the gas valve as claimed in claim 1, wherein the electric actuator further comprises a sealing member and a threaded rod for blocking the gas circulation inside and outside the ball valve, a mounting channel is arranged on a valve seat of the ball valve, the detection end of the second acquisition module is fixedly mounted at the first end of the mounting channel, the first end of the mounting channel is always communicated with the gas inlet end of the ventilation channel, the second end of the mounting channel is provided with threads, the threaded rod is in threaded connection with the second end of the mounting channel, a step is arranged on the mounting channel, the sealing member is mounted between the step and the threaded rod, and two sides of the sealing member are respectively in contact with the step and the threaded rod in an extrusion manner.
5. The electric actuator for a gas valve as recited in claim 4, further comprising a push cylinder and a resilient member, wherein the push cylinder is mounted at the gas inlet end of the vent passage, the push cylinder is always in pressing contact with the valve element, the resilient member exerts a force on the push cylinder always toward the valve element, and the outer diameter of the push cylinder is smaller than the diameter of the vent passage at the location where the push cylinder is mounted.
6. The electric actuator for a gas valve as claimed in claim 5, wherein the resilient member is a compression spring, and both ends of the compression spring are respectively in pressing contact with the valve seat and the push cylinder.
7. The electric actuator for the gas valve as recited in claim 1, wherein the air outlet end of the ball valve vent passage is provided with a rubber ring, and the rubber ring is always in pressing contact with the side wall of the valve core.
8. An electric actuator for a gas valve as claimed in claim 1, wherein the outer wall of the valve stem is provided with a bearing, the outer race of which is fixedly connected to the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220597090.7U CN217713821U (en) | 2022-03-18 | 2022-03-18 | Electric actuator for gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220597090.7U CN217713821U (en) | 2022-03-18 | 2022-03-18 | Electric actuator for gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217713821U true CN217713821U (en) | 2022-11-01 |
Family
ID=83786944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220597090.7U Active CN217713821U (en) | 2022-03-18 | 2022-03-18 | Electric actuator for gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217713821U (en) |
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2022
- 2022-03-18 CN CN202220597090.7U patent/CN217713821U/en active Active
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