CN111443640A - Valve position controller based on network communication modularization - Google Patents
Valve position controller based on network communication modularization Download PDFInfo
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- CN111443640A CN111443640A CN202010308190.9A CN202010308190A CN111443640A CN 111443640 A CN111443640 A CN 111443640A CN 202010308190 A CN202010308190 A CN 202010308190A CN 111443640 A CN111443640 A CN 111443640A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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Abstract
The invention discloses a valve position controller based on network communication modularization, which comprises a controller body, a signal processing unit, a power supply control unit and a driving unit, wherein the controller body comprises a controller shell; a display screen is arranged on the controller shell; the lower end of the controller shell is provided with a valve installer; a manual operator is arranged on the left side of the valve installer; the valve installer and the manual operator are respectively connected with the gear transmission; one end of the gear transmission is connected with the torque motor, and the other end of the gear transmission is connected with the gear transmission mechanism; the inside of controller shell is provided with signal processing unit, power control unit, drive unit. The invention can effectively reduce the number of cables and the number of installation accessories, reduce the labor intensity of installation personnel, save the equipment cost, improve the equipment safety, has the advantages of low cost, simple installation, quick construction, stable operation, low failure rate, safety, reliability and the like, and can be widely applied to various control valves.
Description
Technical Field
The invention relates to a valve position controller, in particular to a valve position controller based on network communication modularization.
Background art:
valves are one of the most widely used industrial devices, and are often used to control the flow or stoppage of a medium (e.g., liquid, gas, powder, etc.) or the regulation of the flow rate, etc. within a pipeline or device. The valve position controller in the existing market is controlled by adopting common hard wire connection, the controller is controlled by adopting a mode of not less than 8 control wires in the control operation, so that the aim of controlling the controller to operate and acquiring feedback data of the controller is fulfilled, if the number of the controllers is large, the number of the cables on site is multiplied, other corresponding accessory facilities comprise a bridge frame, a mounting bracket and the manual strength of mounting, and the construction time is multiplied; the signal is transmitted to the control room in a short distance in a hard wire connection mode, the control and acquisition requirements cannot be met in the long distance, and the longer the cable distance is, the larger the voltage attenuation is, and the control component does not work under certain voltage, so that the control operation of the controller is unreliable. Currently, the existing products on the market also have the following defects:
1) the circuit and control part: the cable is connected by adopting common hard wires, the number of cables is large, excessive auxiliary mounting supports are needed for laying the cables, the engineering is complex, more workers are needed, the mounting construction strength is high, the effective transmission distance of signals is short, potential safety hazards such as electric workers and electric leakage exist, meanwhile, a large amount of accessory module equipment is needed for external control equipment to acquire data, the operation cost and the maintenance cost of the equipment are increased, and the failure rate of the equipment is increased;
2) a mechanical part: the mechanical part, the circuit and the control part are installed together, and when the mechanical part leaks oil or the mechanical sealing is poor, the danger of burning out a motor and short circuit and electric leakage of the circuit part is easily caused when water leaks or dust enters;
3) the general controller is controlled by a cam to reach a position, a cam controller is pressed to cut off a zero line to control the operation of the controller, the travel switch is pressed to cut off a zero line loop when the device reaches the position during operation or closing, a power line in a main loop of a motor is still electrified, and a coil of the controller is aged due to overlong application life of the controller, so that the danger of electric man and electricity leakage exists, safety accidents easily occur, the safety performance of the device is low, and the service life of a product is influenced; the mode that manual operation and automatic operation can be carried out simultaneously is adopted, and once misoperation occurs to an operator, potential safety hazards exist in the operator and equipment.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a valve position controller based on network communication modularization.
In order to solve the technical problems, the invention adopts the technical scheme that: a valve position controller based on network communication modularization comprises a controller body, wherein the controller body comprises a controller shell, a signal processing unit, a power supply control unit and a driving unit; a display screen is arranged on the controller shell; the lower end of the controller shell is provided with a valve installer; a manual operator is arranged on the left side of the valve installer; the valve installer and the manual operator are respectively connected with the gear transmission; one end of the gear transmission is connected with the torque motor, and the other end of the gear transmission is connected with the gear transmission mechanism; a signal processing unit, a power supply control unit and a driving unit are arranged in the controller shell;
the signal processing unit is connected with the driving unit through the power supply control unit; the signal processing unit is connected with the power supply control unit through the MCU central control module; the power supply control unit is connected with the driving unit through the position detection and driving device processor; the driving unit receives a driving power supply provided by the power supply control unit, is connected with the signal processing unit through the power supply control unit, and simultaneously receives signals for controlling opening and closing sent by the signal processing unit, and transmits the real-time temperature to the power supply control unit and the signal processing unit to form a closed-loop detection system;
the signal processing unit comprises an MCU central control module, an Ethernet interface module and a 485 bus module; the upper end of the MCU central control module is connected with the display screen display module, and the lower end of the MCU central control module is respectively connected with the fault processing module, the state display module and the signal state processor; the MCU central control module is connected with the communication processor through a copper wire row; one end of the communication processor is connected with the signal processor, and the other end of the communication processor is connected with the interface module; the signal processor is connected with external equipment through the Ethernet interface module; the interface module is connected with the interface equipment through a 485 bus module; the 485 bus module is connected with the address code processor;
the power supply control unit is connected with the signal processing unit through a wire and provides power supply and detection position signals for the signal processing unit; the power supply control unit comprises a position detection and driving device processor and a leakage detection module; the position detection and drive device processor is connected with the controller position locator through the position sensor; the position detection and driving device processor is respectively connected with the state display and alarm module, the AC/DC power converter and the DC/DC power converter; the state display and alarm module is respectively connected with the AC/DC power converter and the DC/DC power converter; the position detection and driving device processor is connected with the electric leakage detection module; one end of the position detection and drive device processor is connected with the MCU central control module, and the other end of the position detection and drive device processor is connected with the drive device through a lead;
the driving unit is connected with the power supply control unit through a wire, so that the fault of burning damage of the torque motor caused by long-time work or blockage is effectively protected; the driving unit comprises a driving device, a torque motor and a gear switching device; the driving device is connected with the gear transmission mechanism through the torque motor; the torque motor is connected with the temperature sensor; one end of the gear switching device is connected with the manual auxiliary transmission mechanism, and the other end of the gear switching device is connected with the gear transmission mechanism; the gear transmission mechanism is connected with the controller position positioner.
Furthermore, the Ethernet interface module is connected with external equipment through a network interface; the external equipment comprises network communication equipment, optical cable transmission equipment, a network port controller and computer equipment.
Further, the 485 bus module is connected with interface equipment through a 485 communication interface; the interface device includes a gateway, a wireless device, a free communication device, a bus device, and a controller device.
Furthermore, the gear switching device is respectively connected with the manual auxiliary transmission mechanism and the gear transmission mechanism through gear engagement.
Further, the manual auxiliary transmission mechanism is a manual operator; the gear switching device is a gear transmission; the manual operator and the valve installer are respectively connected with the controller shell.
Furthermore, the controller bodies are connected in parallel; the controller body is connected with the network switching equipment through a network cable; the network switching equipment is connected with a computer or a network port controller through a network cable or an optical cable.
Compared with the prior art, the invention has the following advantages:
1) the industrial Ethernet and the 485 communication bus are utilized to control the MCU central control module to operate and collect the operating data of the MCU central control module, the signal processing unit, the power supply control unit and the driving unit are independently installed in independent sealed spaces respectively, the signal processing unit and the power supply control unit are installed in an independent space, the driving unit is installed in an independent space, and meanwhile, the shell is shielded by a metal shell, so that the moisture and dust can be prevented, and the electromagnetic interference can be prevented;
2) the CPU of the MCU central control module is used for detecting the position of the position sensor, the electric leakage detection module is additionally arranged in the position detection and driving device processor for detecting electric leakage, and when the position sensor detects that the position sensor reaches the position, the position detection and driving device processor control circuit simultaneously cuts off a power live wire and a power zero wire of the position detection and driving device processor to stop executing actions, so that safety accidents of people and electricity leakage can be effectively prevented, the safety performance of equipment is improved, the service life is prolonged, and the failure rate is reduced;
3) the gear switching device needs to be manually pressed and screwed up, and the gear switching device needs to be manually switched during manual work or automatic work, so that the equipment safety and the safety of operators can be ensured, and misoperation is reduced.
This design adopts the modularization mounting means, the signal processing unit, the power control unit, the drive unit all adopts modular structure, adopt independent installation sealed module ization mechanical structure, can solve the problem that equipment construction installation cost is high and can solve the controller again because the equipment that self mechanical reason caused damages the problem, not only maintain simply, simple to operate, operation safety, and power control unit can in time detect the trouble when the drive unit appears damaging, and report to the police and feed back the user through the signal processing unit with trouble signal output, position detection and drive arrangement treater automated inspection hourglass electric warning outage, when torque motor detected to reach the position, the mode of operation that position detection and drive arrangement treater automatic simultaneous cut off its power line and zero line reduces the emergence of incident.
The design can effectively reduce the number of cables, the number of external control equipment and the number of installation accessories, reduces project construction period, reduces labor intensity of installation personnel, saves equipment cost, improves equipment safety, reduces after-sales service, reduces equipment maintenance rate, has the advantages of low cost, simple installation, quick construction, stable operation, low failure rate, safety, reliability and the like, and can be widely applied to various control valves.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1.
Fig. 3 is an electrical schematic of the present invention.
FIG. 4 is a schematic diagram of the present invention connected via Ethernet TCP/IP communication mode.
FIG. 5 is a schematic diagram of the present invention connected via a 485 bus handspike communication mode.
FIG. 6 is a schematic diagram of the networked TCP/IP communication mode connection via 485 interfaces according to the present invention.
In the figure: 1. a controller housing; 2. a display screen; 3. a valve installer; 4. a manual operator; 5. a gear transmission; 6. a torque motor; 7. a gear transmission mechanism; 8. the MCU central control module; 9. an Ethernet interface; 10. and a 485 communication port.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, a network communication modularization-based valve position controller comprises a controller body, wherein the controller body comprises a controller shell 1, a signal processing unit, a power supply control unit and a driving unit; a display screen 2 is arranged on the controller shell 1; the lower end of the controller shell 1 is provided with a valve mounting device 3; a manual operator 4 is arranged on the left side of the valve installer 3; the valve installer 3 and the manual operator 4 are respectively connected with a gear transmission 5; one end of the gear transmission 5 is connected with the torque motor 6, and the other end is connected with the gear transmission mechanism 7; a signal processing unit, a power supply control unit and a driving unit are arranged in the controller shell 1;
the signal processing unit is connected with the driving unit through the power supply control unit; the signal processing unit is connected with the power supply control unit through the MCU central control module; the power supply control unit is connected with the driving unit through the position detection and driving device processor; the driving unit receives a driving power supply provided by the power supply control unit, is connected with the signal processing unit through the power supply control unit, and simultaneously receives signals for controlling opening and closing sent by the signal processing unit, and transmits the real-time temperature to the power supply control unit and the signal processing unit to form a closed-loop detection system;
the signal processing unit comprises an MCU central control module, an Ethernet interface module and a 485 bus module; the upper end of the MCU central control module is connected with the display screen display module, and the lower end of the MCU central control module is respectively connected with the fault processing module, the state display module and the signal state processor; the MCU central control module is connected with the communication processor through a copper wire row; one end of the communication processor is connected with the signal processor, and the other end of the communication processor is connected with the interface module; the signal processor is connected with external equipment through the Ethernet interface module; the interface module is connected with the interface equipment through a 485 bus module; the 485 bus module is connected with the address code processor;
the display screen display module, MCU central control module, fault processing module, state display module, signal state treater, communication processor, interface module, address code treater, 485 bus module, signal processor, ethernet interface module, above module integration is on a circuit board, all rely on tiny copper row to link together between the components and parts on a circuit board and constitute signal processing unit. The signal processing unit is independently sealed, waterproof, dampproof and dustproof and insulated. Wherein, the 485 bus module is linked to the outside by two wires. The Ethernet interface module, i.e. the network port, is connected to the external device through an 8-core network cable.
The Ethernet interface module is connected with external equipment through a network interface; the external equipment comprises network communication equipment, optical cable transmission equipment, a network port controller and computer equipment.
The 485 bus module is connected with the interface equipment through a 485 communication interface; the interface device includes a gateway, a wireless device, a free communication device, a bus device, and a controller device. The gateway, the wireless equipment, the free communication equipment, the bus equipment, the controller equipment, the network switch, the optical cable transmission equipment, the network port controller and the computer equipment are all connected with the signal processing unit through electric wires and cables and are respectively accessed to corresponding ports of the signal processing unit through peripheral circuits, so that the function of controlling, running and exchanging data through the network bus is achieved.
The controller bodies are connected in parallel; the controller body is connected with the network switching equipment through a network cable; the network switching equipment is connected with a computer or a network port controller through a network cable or an optical cable.
The signal processing unit is connected with the power supply through the power supply interface, the network interface adopts MODBUS _ TCP protocol to carry out Ethernet TCP/IP technical communication with external equipment, and can carry out communication with external network communication equipment, optical cable communication equipment, a network port communicator, computer equipment and the like through the Ethernet interface, as shown in figure 4. This design is not limited to 485 bus communication, also can be through 422 communication, 232 communication, AI bus, can bus, profibus-dp bus, and free port communication mode detects and the operation of control controller body, all is in this patent protection scope.
The network interfaces are connected in a star connection communication mode, namely, a network switch is arranged around the equipment, the equipment is connected to the network switch, a plurality of sets of equipment are respectively connected to the plurality of sets of network switches, star connection is carried out between the network switches, and finally the buses are connected to a network port controller or a computer for centralized control, namely, a distributed centralized network control mode.
The 485 communication interface communicates with external equipment through an MODBUS _ RTU technical protocol, and the 485 communication interface can also communicate with a gateway, wireless equipment, free communication equipment, bus equipment, a network port controller equipment with a 485 communication port and the like. The standard 485 communication can adopt a hand-in-hand mode, the hand-in-hand mode can control 256 devices at most, and the farthest distance is 1200 meters, as shown in fig. 5. The 485 bus access gateway device at the tail end can be converted into a network signal by adopting a hand-in-hand wiring mode within an effective communication distance, a plurality of sets of devices are accessed into a plurality of gateway devices, the gateway devices are connected in a star-type manner through the network communication device and are finally connected into a network port controller or a computer system.
The industrial Ethernet and the 485 communication bus are adopted to control the controller body to operate and simultaneously acquire the operation feedback data of the controller body, so that the industrial field device is intelligentized, networked, simplified and safe, the networked industrial Ethernet is adopted, the control signal and the feedback signal of the original controller body are converted into network signals through the MCU central control module and are fed back to a user through an Ethernet port or a 485 communication interface, only a network switch is needed to be installed on the site, each controller adopts a network cable to control and acquire data, the network cable is plugged into the network switch, a bus is connected from the network switch to a control room, and the control room can be directly plugged into a computer or can be plugged into an external network port controller (such as a P L C controller) and the like, as shown in FIG. 6.
After the controller on site and the controller in the control room exceed 100 meters (485 signals are 1200 meters) in a network bus mode, the optical cable can be used for transmission, the optical cable can be extended to 10 kilometers or 20 kilometers according to requirements, data can be uploaded to a mobile data base station through a wireless remote transmission module and transmitted to the control room through a base station, a receiving and converting device is arranged at the control room end, and the data is transmitted to the controller or a computer, and because the signals are transmitted in the optical cable, the light is not interfered, so that the collected and controlled models are stable and reliable (the distance between the operation site and the control room is rarely over 20 kilometers in industrial occasions), and the data can be transmitted through a local area network in an enterprise, so that the data transmission is stable, reliable and investment is saved. These are not achieved by hard-wired connections. If the wireless remote transmission function is adopted, the device can be received and controlled at any place without regional limitation.
The power supply control unit is connected with the signal processing unit through a wire and provides power supply and detection position signals for the signal processing unit; the power supply control unit comprises a position detection and driving device processor and a leakage detection module; the position detection and drive device processor is connected with the controller position locator through the position sensor; the position detection and driving device processor is respectively connected with the state display and alarm module, the AC/DC power converter and the DC/DC power converter; the state display and alarm module is respectively connected with the AC/DC power converter and the DC/DC power converter; the position detection and driving device processor is connected with the electric leakage detection module; one end of the position detection and drive device processor is connected with the MCU central control module, and the other end of the position detection and drive device processor is connected with the drive device through a lead;
the position detection and driving device processor, the electric leakage detection module, the AC/DC power converter, the DC/DC power converter, the state display and alarm module, the position sensor and the controller position locator, the above modules are integrated on a second circuit board, and components on the second circuit board are linked together by virtue of tiny copper wire rows to form a power control unit. The power control unit is independently sealed, waterproof, dampproof and dustproof.
The AC/DC power supply processor or the DC/DC power supply processor converts the power supply into direct current low voltage to supply to the position detection and driving device processor and the MCU central control module, the position sensor converts the current position of the MCU central control module into an electric signal to be transmitted to the position detection and driving device processor, the position detection and driving device processor automatically processes the signal according to the current position signal and feeds back the electric signal to the driving device so as to control the driving device to control the torque motor to operate, when the torque motor reaches a set position, the position detection and driving device processor automatically controls the driving device to power off (the power supply and the zero line are all powered off), and safety accidents caused by the aging of long-time operation equipment of the position detection and driving device processor are prevented. A leakage detection module in the position detection and driving device processor can effectively detect the leakage of the module, and the power supply is automatically cut off when the leakage occurs. The leakage detection module may be mounted outside the controller housing or within the position detection and drive device processor.
The controller position locator can convert the current position into linear semaphore and feed back the linear semaphore to a user, the user can carry out hard-wire connection or feed back the semaphore to the MCU central control module, the MCU central control module converts the linear semaphore into a network semaphore and outputs the network semaphore, and the user can acquire data through the network semaphore to control the operation of equipment.
The state display and alarm module can effectively display the current running position of the torque motor, can give an alarm in time when the torque motor breaks down, and can exchange data of signals through a network.
The driving device drives the torque motor to operate, working torque generated by the torque motor is fed back to the position detection and driving device processor in real time, the position detection and driving device processor controls the output control signal in real time according to the most effective torque which can be output by the current torque motor to effectively control the driving device to operate under the conditions of optimal energy conservation and optimal torque, and effective closed-loop servo control is implemented.
The position detection and drive device processor automatically monitors the temperature rise parameters of the torque motor according to the transmission signals of the temperature sensor, and automatically calculates data to enable the torque motor to operate in the most effective temperature rise range, so that the service life of a product is prolonged.
When the torque motor runs to reach the position, the power line and the zero line are cut off at the same time, so that the power line and the zero line are not electrified. And an electric leakage detection module is arranged in the position detection and driving device processor, so that the position detection and driving device processor can not generate electric leakage and safety accidents. Meanwhile, because the power live wire and the zero line are simultaneously cut off when the position detection and driving device processor is in a stop state, the situation that the position detection and driving device processor cannot be powered off and is in a continuous working heating state due to the formation of switch misoperation can be avoided, and finally the motor is destroyed to cause equipment damage, so that the service life of the equipment is prolonged. The power supply in the main loop is automatically cut off through the position detection and driving device processor, so that the application is safer, and the application time and the service life of the position detection and driving device processor are longer.
The driving unit is connected with the power supply control unit through a wire, so that the fault of burning damage of the torque motor caused by long-time work or blockage is effectively protected; the driving unit comprises a driving device, a torque motor and a gear switching device; the driving device is connected with the gear transmission mechanism through the torque motor; the torque motor is connected with the temperature sensor; one end of the gear switching device is connected with the manual auxiliary transmission mechanism, and the other end of the gear switching device is connected with the gear transmission mechanism; the gear transmission mechanism is connected with the controller position positioner.
The driving device, the torque motor, the temperature sensor, the manual auxiliary transmission mechanism, the gear switching device and the gear transmission mechanism form a driving unit.
The gear switching device is respectively connected with the manual auxiliary transmission mechanism and the gear transmission mechanism through gear engagement. The manual auxiliary transmission mechanism is a manual operator 4; the gear shifting device is a gear transmission 5; the manual operator 4 and the valve mounting device 3 are respectively connected with the controller housing 1.
The gear switching device is respectively connected with the manual auxiliary transmission mechanism and the gear transmission mechanism in a gear meshing connection mode. When the gear switching device is connected with the manual auxiliary transmission mechanism and the gear transmission mechanism through gear engagement, the gear switching device is only connected with one of the mechanisms at the same time: if the manual operation is needed, the gear switching device is only connected with the manual auxiliary transmission mechanism, and the gear switching device is separated from the gear transmission mechanism; if automatic operation is required, the gear switching device is connected with the gear transmission mechanism through gear engagement, so that artificial safety accidents can be effectively avoided. The function of the gear shifting device is similar to that of a clutch.
The manual auxiliary transmission mechanism and the gear transmission mechanism are switched through the gear switching device, and the manual auxiliary transmission mechanism and the gear transmission mechanism are switched by pressing and screwing up the gear switching device, so that the manual auxiliary transmission mechanism and the gear transmission mechanism are convenient and reliable. The torque motor drives the gear transmission mechanism to rotate, the torque motor is connected with the gear transmission mechanism to drive the gear transmission 5 to rotate, the valve installer 3 can install various types of valve equipment, and the manual auxiliary transmission mechanism, the electric gear transmission mechanism and the gear switching device are installed in a space. By adopting a high-grade waterproof sealing dustproof sealing structure, the metal shell is designed and reliably grounded, so that the electromagnetic interference can be effectively shielded and the safety performance of the controller can be enhanced.
The mechanical mechanism has two operation structure modes: the manual auxiliary transmission mechanism and the gear transmission mechanism can be used for selecting a structural mode by a user according to the practical application condition.
When a user selects a gear transmission mechanism, after the gear switching device and the gear transmission mechanism are meshed and switched, the torque motor is provided with the transmission shaft, the transmission gear is arranged on the transmission shaft, the gear transmission mechanism rotates to drive the gear to rotate, the gear transmission mechanism and the gear transmission 5 are meshed and connected through the gear to drive the gear transmission 5 to rotate, and therefore the gear transmission 5 drives the external valve to rotate.
When a user selects the manual auxiliary transmission mechanism, the gear switching device is connected with the manual auxiliary transmission mechanism through gear meshing, and when the manual auxiliary transmission mechanism is manually rotated by a hand, the manual auxiliary transmission mechanism drives the external valve to rotate through the gear meshing gear transmission 5. Manual operation and automatic operation switching need manual operation to switch gear auto-change over device, and is safer in personnel's operation, and equipment life is longer, and it is more convenient to maintain.
The external valve is mounted on the valve mounting device 3 through screws, so that the effect of fixing the valve is achieved. Lubricating grease is uniformly coated on the manual auxiliary transmission mechanism, the gear switching device and the gear transmission mechanism, so that the gears can be fully lubricated, and the lubricating effect is achieved to prevent hard wear of machinery.
The sealing mechanism is manually installed on the driving unit shell, and the rigid seal plays a role in water and dust prevention. The sealing mechanism ensures that external media cannot enter the inner cavity. The effective modularized closed mechanical structure can ensure that the product is more reliable and flexible, the quality of the product is better, the maintenance amount of a user is lower, and the safety performance is higher.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.
Claims (6)
1. A modularized valve position controller based on network communication comprises a controller body, wherein the controller body comprises a controller shell (1), and the modularized valve position controller is characterized in that: the device also comprises a signal processing unit, a power supply control unit and a driving unit; a display screen (2) is arranged on the controller shell (1); a valve mounting device (3) is arranged at the lower end of the controller shell (1); a manual operator (4) is arranged on the left side of the valve installer (3); the valve installer (3) and the manual operator (4) are respectively connected with the gear transmission (5); one end of the gear transmission (5) is connected with the torque motor (6), and the other end of the gear transmission is connected with the gear transmission mechanism (7); a signal processing unit, a power supply control unit and a driving unit are arranged in the controller shell (1);
the signal processing unit is connected with the driving unit through the power supply control unit; the signal processing unit is connected with the power supply control unit through the MCU central control module; the power supply control unit is connected with the driving unit through the position detection and driving device processor; the driving unit receives a driving power supply provided by the power supply control unit, is connected with the signal processing unit through the power supply control unit, and simultaneously receives signals for controlling opening and closing sent by the signal processing unit, and transmits the real-time temperature to the power supply control unit and the signal processing unit to form a closed-loop detection system;
the signal processing unit comprises an MCU central control module, an Ethernet interface module and a 485 bus module; the upper end of the MCU central control module is connected with the display screen display module, and the lower end of the MCU central control module is respectively connected with the fault processing module, the state display module and the signal state processor; the MCU central control module is connected with the communication processor through a copper wire row; one end of the communication processor is connected with the signal processor, and the other end of the communication processor is connected with the interface module; the signal processor is connected with external equipment through an Ethernet interface module; the interface module is connected with the interface equipment through a 485 bus module; the 485 bus module is connected with an address code processor;
the power supply control unit is connected with the signal processing unit through a wire and used for providing power supply and detection position signals for the signal processing unit; the power supply control unit comprises a position detection and driving device processor and a leakage detection module; the position detection and drive device processor is connected with the controller position positioner through the position sensor; the position detection and driving device processor is respectively connected with the state display and alarm module, the AC/DC power converter and the DC/DC power converter; the state display and alarm module is respectively connected with the AC/DC power converter and the DC/DC power converter; the position detection and driving device processor is connected with the electric leakage detection module; one end of the position detection and drive device processor is connected with the MCU central control module, and the other end of the position detection and drive device processor is connected with the drive device through a lead;
the driving unit is connected with the power supply control unit through a wire, so that the fault of burning damage of the torque motor caused by long-time work or blockage is effectively protected; the driving unit comprises a driving device, a torque motor and a gear switching device; the driving device is connected with the gear transmission mechanism through a torque motor; the torque motor is connected with the temperature sensor; one end of the gear switching device is connected with the manual auxiliary transmission mechanism, and the other end of the gear switching device is connected with the gear transmission mechanism; the gear transmission mechanism is connected with the controller position positioner.
2. The modular network-based valve position controller of claim 1, wherein: the Ethernet interface module is connected with external equipment through a network interface; the external equipment comprises network communication equipment, optical cable transmission equipment, a network port controller and computer equipment.
3. The network communication module-based valve position controller of claim 2, wherein: the 485 bus module is connected with interface equipment through a 485 communication interface; the interface device comprises a gateway, a wireless device, a free communication device, a bus device, and a controller device.
4. The network communication module-based valve position controller of claim 3, wherein: the gear switching device is respectively connected with the manual auxiliary transmission mechanism and the gear transmission mechanism through gear engagement.
5. The modular network-based valve position controller of claim 4, wherein: the manual auxiliary transmission mechanism is a manual operator (4); the gear switching device is a gear transmission (5); the manual operator (4) and the valve installer (3) are respectively connected with the controller shell (1).
6. The network communication module-based valve position controller of any one of claims 1-5, wherein: the controller comprises a plurality of controller bodies, wherein the controller bodies are connected in parallel; the controller body is connected with the network switching equipment through a network cable; the network switching equipment is connected with a computer or a network port controller through a network cable or an optical cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010308190.9A CN111443640A (en) | 2020-04-18 | 2020-04-18 | Valve position controller based on network communication modularization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010308190.9A CN111443640A (en) | 2020-04-18 | 2020-04-18 | Valve position controller based on network communication modularization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111443640A true CN111443640A (en) | 2020-07-24 |
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| CN108980439A (en) * | 2018-09-20 | 2018-12-11 | 济宁安通自控设备有限公司 | A kind of cloud ball valve electric actuator |
| CN110594472A (en) * | 2019-08-26 | 2019-12-20 | 浙江理工大学 | Intelligent electric actuator of flow monitoring valve |
| CN210050361U (en) * | 2019-03-14 | 2020-02-11 | 兰控阀门执行器江苏有限公司 | Protection device for valve actuator |
| CN110998141A (en) * | 2017-07-14 | 2020-04-10 | 柏佛尔德流体动力有限公司 | Actuator of fail-safe valve |
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| CN101478197A (en) * | 2009-01-22 | 2009-07-08 | 河北工业大学 | Intelligent electric actuator apparatus based on frequency conversion control technique |
| CN102252123A (en) * | 2011-06-16 | 2011-11-23 | 常州贝斯特控制设备有限公司 | Mining explosion-proof intrinsic safety type control box for valve electric device |
| CN105840900A (en) * | 2016-05-31 | 2016-08-10 | 无锡莱谱尔科技有限公司 | Foundation Fieldbus type controller for electric valve actuator |
| CN205745547U (en) * | 2016-05-31 | 2016-11-30 | 无锡莱谱尔科技有限公司 | Foundation fieldbus type electric device for valve controller |
| CN205745550U (en) * | 2016-06-30 | 2016-11-30 | 宁波恒富汽车部件发展有限公司 | Water valve actuator |
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| CN110998141A (en) * | 2017-07-14 | 2020-04-10 | 柏佛尔德流体动力有限公司 | Actuator of fail-safe valve |
| CN108980439A (en) * | 2018-09-20 | 2018-12-11 | 济宁安通自控设备有限公司 | A kind of cloud ball valve electric actuator |
| CN210050361U (en) * | 2019-03-14 | 2020-02-11 | 兰控阀门执行器江苏有限公司 | Protection device for valve actuator |
| CN110594472A (en) * | 2019-08-26 | 2019-12-20 | 浙江理工大学 | Intelligent electric actuator of flow monitoring valve |
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