CN211175560U - Intelligent electric actuator of flow monitoring valve - Google Patents
Intelligent electric actuator of flow monitoring valve Download PDFInfo
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- CN211175560U CN211175560U CN201921393175.8U CN201921393175U CN211175560U CN 211175560 U CN211175560 U CN 211175560U CN 201921393175 U CN201921393175 U CN 201921393175U CN 211175560 U CN211175560 U CN 211175560U
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Abstract
The utility model discloses an intelligent electric actuator of a flow monitoring valve, which comprises an electric execution unit, an angular displacement sensor, a pressure sensor, a temperature sensor, a man-machine interaction unit, a cloud interaction unit, a storage unit and a power supply unit, wherein the electric execution unit is used for rotating the valve, and the angular displacement sensor is used for acquiring the accurate position of the current valve; the pressure sensor is used for acquiring pressure value data of the upstream and downstream of the valve; the temperature sensor is used for acquiring the temperature of the fluid in the pipeline; the human-computer interaction module is used for data communication between a user field and the equipment; the storage module is used for storing historical flow information, historical fault information and historical temperature information; the power module is used for supplying power for the normal work of the whole system and each module. The utility model discloses can realize a great deal of practical function such as flow monitoring, flow regulation and control, failure prediction, malfunction alerting, remote data interaction, entire system accords with intelligent, automatic, the practical application scene and the epoch background of thing networking.
Description
Technical Field
The utility model belongs to the technical field of the valve, especially, intelligent electric actuator of flow monitoring valve.
Background
The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. The actuator is the main part of the control valve and can be used for controlling the rotation angle of the valve to control the corresponding valve opening, thereby achieving the purpose of controlling the flow of various types of fluid such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like in the pipeline.
Most of the existing electric actuators simply regulate and control the opening degree of a valve, can control the valve position to be in a fully-opened state, a fully-closed state and the like, but cannot effectively control the flow value in a pipeline, namely cannot automatically regulate the opening degree of the valve according to the flow. Meanwhile, the wireless communication function and the closed-loop regulation control function are not provided.
The flow data acquisition needs to depend on related equipment such as a flowmeter, so that the whole structure of the equipment is complex, the size is large, the assembly is complicated, and the flowmeter data and the actuator data cannot form effective data interaction, which is also a defect.
Corresponding fault monitoring equipment is also lacked in the actual engineering application, and when fluid conveying system broke down and was unusual, the valve can not carry out timely warning, can't learn the exact position in the pipeline and broke down, only can get rid of through artifical patrolling and examining, consumeed manpower and materials and inefficiency.
The related data of the fluid in the pipeline cannot be stored and analyzed, and the temperature of the fluid cannot be known, so that some accidents which can be avoided originally cannot be avoided, and great economic loss is caused. Secondly, the staff can not carry out high in the clouds data interaction through long-range wireless regulation and control valve aperture.
Aiming at the actual project requirements of controllable flow, searchable flow, controllable abnormality, fault alarm, historical storage, data analysis and the like, an electric actuator with complete functions and reliable operation is urgently needed at present, is convenient to install and disassemble, and can directly acquire the flow of a pipeline, control the flow and fluid data in other pipelines.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an intelligent electric actuator of flow monitoring valve, the intelligent electric actuator of this flow monitoring valve can satisfy the needs such as energy saving, reduction maintenance cost, safe and reliable.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides an intelligent electric actuator of flow monitoring valve, its includes electronic execution unit, its characterized in that: the intelligent control system also comprises a control unit, a signal acquisition unit, a man-machine interaction unit, a cloud interaction unit, a storage unit and a power supply unit, wherein the signal acquisition unit, the man-machine interaction unit, the cloud interaction unit, the storage unit and the power supply unit are respectively connected with the control unit;
the signal acquisition unit comprises a pressure sensor, a temperature sensor and an angular displacement sensor,
the pressure sensor collects medium pressure data in upstream and downstream pipelines at two ends of the valve and then transmits the data with the control unit,
the temperature sensor collects the medium temperature data in the upstream and downstream pipelines at the two ends of the valve and then transmits the data to the control unit,
the angular displacement sensor collects valve opening data and transmits the data to the control unit;
the human-computer interaction unit comprises an input module, a liquid crystal display module and an alarm module, the output end of the input module is connected with the control unit, the output end of the control unit is respectively connected with the liquid crystal display module and the alarm module,
the cloud interaction unit comprises a cloud server, and the cloud server is connected with the control unit through a networking module;
the storage unit forms cloud data interaction with the control unit through the signal transmission module.
Further, the pressure sensor is connected with the control unit through a 485 module.
Further, the output control circuit is connected with the control unit through a 485 module.
Furthermore, the electric execution unit performs data interaction with the output control circuit through a built-in MODBUS communication protocol.
Furthermore, the storage unit adopts a W25Q64 Flash memory.
Further, the cloud server performs data interaction with a user PC or a user smart phone through the signal transmission module.
According to the above technical scheme, the utility model discloses can be according to installing the current flow data of pipeline directly to acquire of pressure sensor numerical value on the valve upper and lower trip, can be through fluid temperature in the temperature sensor monitoring pipeline, and carry out real-time abnormal flow monitoring and historical flow information storage inquiry, the user can set for target flow numerical value through the addition and subtraction of human-computer interaction unit at the scene, electric execution unit regulates and control current flow to target flow automatically, and can regularly upload data to high in the clouds server, the user can be connected with high in the clouds server through smart mobile phone APP and PC end and carry out the real-time regulation and the inquiry of flow, can long-rangely open, close the valve.
The present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a block diagram of an overall system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a mounting position of a pressure sensor according to an embodiment of the present invention;
FIG. 3 is a graph of model data obtained from the flow coefficient based on the embodiment of the present invention;
fig. 4 is a schematic block diagram of data communication between the smart phone, the PC terminal and the cloud end according to the embodiment of the present invention;
the system comprises a human-computer interaction unit 17, an input module 1, a liquid crystal display circuit 11, a power circuit 2, a pressure feedback 3, a temperature feedback 5, a valve opening position feedback 6, an output control circuit 7, a storage module 10, a networking module 8, a cloud interaction unit 9, an electric execution unit 16, a cloud server 18, a smart phone end 14, a user PC end 12 and a user PC end 13.
Detailed Description
The specific embodiment of the utility model is shown in fig. 1-4 is a monitoring electric actuator of intelligent flow valve, and it includes electric execution unit 16, the control unit, the signal acquisition unit, human-computer interaction unit 17, memory cell 10, cloud interaction unit 9 and power supply unit 2, and the control unit is by technical staff according to the conventional treater MCU that requires to purchase on the market, and treater MCU is connected with electric execution unit 16 through output control circuit 7; when the output control circuit 7 performs data interaction with the processor, the communication protocol adopts the MODBUS protocol, and the communication data needs to be subjected to CRC check of both parties. Specifically, the MODBUS protocol card adopts a two-wire half-duplex RS485 interface, and can configure and identify bus parameters such as baud rate, device address, parity bits, and the like. The processor MCU adopts an enhanced 51 series (AT89 series) singlechip manufactured by Atmel company in the United states as a core. Of course, due to the development of chip technology, there are many possibilities for the selection of the processor MCU for those skilled in the art, and thus, they are not exemplified here.
The signal acquisition unit comprises a pressure feedback 3, a temperature feedback 5 and a valve opening position feedback 6, and signals are acquired by a pressure sensor, a temperature sensor and an angular displacement sensor respectively;
the pressure sensors are arranged at the upstream and downstream ends of the actuator, and when the pressure sensors acquire medium pressure data in the upstream and downstream pipelines at the two ends of the valve, the pressure sensors perform data transmission with the MCU through serial port communication; when the pressure sensor detects that medium fluid in the pipeline leaks, the processor MCU transmits an alarm signal to the alarm module, and the alarm module sends out alarm information, so that the control loss is further enlarged.
The temperature sensor is arranged in the pipeline and used for measuring the temperature of fluid in the pipeline, and the temperature sensor transmits medium temperature data in the upstream pipeline and the downstream pipeline at the two ends of the valve to the processor MCU after acquiring the medium temperature data; when the temperature is too high, the processor MCU transmits an alarm signal to the alarm module and the alarm module sends alarm information.
The angular displacement sensor collects valve opening data and transmits the data to the processor MCU; the valve body opening and closing position detected by the angular displacement sensor is matched with pressure data obtained by the pressure sensor, so that the current flow data in the pipeline can be obtained.
The principle of obtaining the flow in the pipeline is that two pressure sensors are placed at the positions, which are respectively away from an electric actuator 10D (D is the diameter of the pipeline), of the pipelines at two ends, as shown in figure 2, pressure data of the two pressure sensors are obtained, valve opening positions obtained by an angular displacement sensor are matched, formulas about flow, pressure difference and opening suitable for pipeline scenes are analyzed by using a large amount of data (refer to figure 3) obtained through experiments and MAT L AB software, instantaneous flow in the pipeline at present is calculated, and then the flow can be adjusted in real time by matching with the electric actuator.
The real-time adjustment can be completed through field human-computer interaction and can also be completed through cloud interaction remote operation.
The man-machine interaction unit 17 comprises an input module 1 (keyboard, voice and touch screen), a liquid crystal display module 11 and an alarm module, wherein the output end of the input module 1 is connected with a processor MCU, the output end of the processor MCU is respectively connected with the liquid crystal display module 11 and the alarm module, the input module 1 can modify partial parameters of the electric execution unit 16 in a keyboard input mode, a voice input mode or a touch screen input mode and the like, regulate and control flow or inquire the position and the running state of the electric execution unit 16 and the like, a user is supported to carry out data operation and check, and the current running state of the equipment can be prompted to the user. Alarm module includes pilot lamp and bee calling organ, and when the medium that takes place in the pipeline reveals or the high temperature (can know through signal acquisition unit acquisition signal), alarm module sends alarm signal (pilot lamp scintillation and buzzing sound), can avoid the emergence of bigger loss. When the angular displacement sensor detects that the valve adjusting opening degree is equal to 100% or equal to 0%, the signal is transmitted to the processor MCU, the alarm module sends out an alarm signal, and meanwhile, the output control circuit 7 transmits a signal to the electric execution unit 16 to immediately stop opening or closing the valve; in addition, when the signal is lost and the processor MCU does not receive valid data, the alarm module sends an alarm signal, and the output control circuit 7 transmits a signal to the electric execution unit 16 to stop operating. The output control circuit 7 of the electric actuator 16 is designed by a well-established conventional circuit structure, such as the output circuit disclosed in application No. CN 201210372303.7.
The cloud interaction unit 9 comprises a cloud server, the cloud server is connected with the MCU through the networking module 8, the networking module 8 selects and is not limited to an ESP8266, the ESP8266 is used for configuring network access, and a user can perform data interaction communication with the executor through network remote. The storage unit 10 is a W25Q64 Flash memory, realizes data transmission through WiFi, can store historical flow data, historical temperature data and historical fault data, has the characteristic of no loss in power failure, and can be queried remotely and on site in real time.
The user can be through the interactive remote control scene in high in the clouds, can look over equipment operation data and state, supports to show flow data temperature data fault data with the chart form, and the field data change also can be sent to the high in the clouds server through networking module 8. During checking, instantaneous flow data in a certain time interval can be checked in real time, historical flow data can also be checked, and meanwhile, the temperature, the flow coefficient, the fault type and the fault frequency can also be displayed on the liquid crystal display screen in a chart visual mode such as a curve chart and the like, so that a user can conveniently visually inquire.
The power supply unit 2 comprises a voltage reduction circuit, a filter rectification circuit, an output circuit and a protection circuit, the power supply circuit adopts the prior art, such as the conventional circuit design of the structures of the voltage reduction circuit, the filter rectification circuit and the like disclosed in the patent No. CN20082014299.1, the power supply unit 2 is reduced from 220V alternating current to 5V direct current, the direct current is supplied to a processor MCU after rectification and filtering processing, a liquid crystal display screen, an input module 1, a storage unit 10, a networking module 8, a temperature sensor, a pressure sensor and the like, the power supply unit 2, the input module 1 (the embodiment adopts a keyboard input mode), the liquid crystal display screen, the storage unit 10 and the networking module 8 are directly connected with an IO port of the processor, and a signal acquisition module and an output control circuit 7 are connected with the processor MCU in a serial port communication mode after being converted into a 485 module.
The utility model discloses an electric actuator, it can realize a great deal of functions that accord with market actual demand such as flow monitoring, flow control, temperature monitoring, failure prediction, malfunction alerting, multi-terminal interaction. The user can be connected with the cloud server through smart mobile phone 14APP and PC end 12, 13 and carry out the real-time regulation and the inquiry of flow, can long-rangely open, close the valve. The method breaks through barriers that a plurality of components need to be matched with each other, the assembly and disassembly are inconvenient, the cost is high and the like in an actual project, integrates the practicability and the marketization into a whole, and solves the problem of difficulty in system debugging and maintenance. Therefore, the utility model effectively overcomes various defects of the prior art and has high industrial utilization value.
The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.
Claims (6)
1. The utility model provides an intelligent electric actuator of flow monitoring valve, its includes electronic execution unit, its characterized in that: the intelligent control system also comprises a control unit, a signal acquisition unit, a man-machine interaction unit, a cloud interaction unit, a storage unit and a power supply unit, wherein the signal acquisition unit, the man-machine interaction unit, the cloud interaction unit, the storage unit and the power supply unit are respectively connected with the control unit;
the signal acquisition unit comprises a pressure sensor, a temperature sensor and an angular displacement sensor,
the pressure sensor collects medium pressure data in upstream and downstream pipelines at two ends of the valve and then transmits the data with the control unit,
the temperature sensor collects the medium temperature data in the upstream and downstream pipelines at the two ends of the valve and then transmits the data to the control unit,
the angular displacement sensor collects valve opening data and transmits the data to the control unit;
the human-computer interaction unit comprises an input module, a liquid crystal display module and an alarm module, the output end of the input module is connected with the control unit, the output end of the control unit is respectively connected with the liquid crystal display module and the alarm module,
the cloud interaction unit comprises a cloud server, and the cloud server is connected with the control unit through a networking module;
the storage unit forms cloud data interaction with the control unit through the signal transmission module.
2. The intelligent electric actuator of a flow monitoring valve according to claim 1, wherein: the pressure sensor is connected with the control unit through a 485 module.
3. The intelligent electric actuator of a flow monitoring valve according to claim 1, wherein: the output control circuit is connected with the control unit through a 485 module.
4. The intelligent electric actuator of a flow monitoring valve according to claim 1, wherein: and the electric execution unit performs data interaction with the output control circuit through a built-in MODBUS communication protocol.
5. The intelligent electric actuator of a flow monitoring valve according to claim 1, wherein: the storage unit adopts a W25Q64 Flash memory.
6. The intelligent electric actuator of a flow monitoring valve according to claim 1, wherein: and the cloud server performs data interaction with a user PC or a user smart phone through a signal transmission module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921393175.8U CN211175560U (en) | 2019-08-26 | 2019-08-26 | Intelligent electric actuator of flow monitoring valve |
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| CN201921393175.8U CN211175560U (en) | 2019-08-26 | 2019-08-26 | Intelligent electric actuator of flow monitoring valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594472A (en) * | 2019-08-26 | 2019-12-20 | 浙江理工大学 | Intelligent electric actuator of flow monitoring valve |
| CN112113017A (en) * | 2020-08-24 | 2020-12-22 | 深圳数联天下智能科技有限公司 | Induction water outlet method, water outlet device, electronic equipment and storage medium |
-
2019
- 2019-08-26 CN CN201921393175.8U patent/CN211175560U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594472A (en) * | 2019-08-26 | 2019-12-20 | 浙江理工大学 | Intelligent electric actuator of flow monitoring valve |
| CN112113017A (en) * | 2020-08-24 | 2020-12-22 | 深圳数联天下智能科技有限公司 | Induction water outlet method, water outlet device, electronic equipment and storage medium |
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