Today, I will introduce a national invention authorized patent—a smart valve remote control system and its working method. The patent was applied for by Yangzhou Power Equipment Repair Factory Co., Ltd., and was authorized and announced on August 17, 2018.
Content descriptionThe invention relates to the field of remote control of valves.
Background of the inventionIn the process of rapid urbanization in society, high-rise buildings are becoming denser and large-scale industries and residential buildings are getting closer and closer. While making full use of land, it also brings hidden dangers to safety. If a large amount of gas, tap water, chemical toxic gas and other substances leak from the pipeline, the loss caused is immeasurable. The electric actuator, as the control mechanism of various valves, plays a vital role if the valve can be operated in time in the first time of the accident to reduce the discharge of leaking liquid and gas.
If the electric actuator can find the abnormal situation of the on-site environment in the first time, feed back the abnormal information of the pipeline, and transmit the data to the central control system, the central control system operates the valve in time, then the losses caused by the disaster will be greatly reduced. However, the central control system is generally applied in the field of industrial control or large-scale high-end buildings, and is rarely used in ordinary civil buildings or small factories, and it is difficult to ensure the smoothness of the line in the event of an accident. In addition, the system is expensive and technical The requirements are high and the operation is not easy.
Summary of the inventionAiming at the above problems, the present invention proposes a smart structure, low operating difficulty and low cost, which can detect and feed back the abnormal state of the valve in time during use, so that people can quickly make judgments and issue instructions to the electric actuator in time. Type valve remote control system and its working method.
The technical solution of the present invention is: the valve is located in the pipeline, and a signal acquisition device is provided in the pipeline, wherein the control system includes a monitoring center, a communication base station, a number of mobile phone clients and a number of electric actuators;
The electric actuator is used to drive the valve and communicate with the signal acquisition device, the monitoring center communicates with the communication base station through wireless information, and several of the mobile phone clients communicate with the communication base station through wireless information , A number of the electric actuators communicate with the communication base station through wireless information, and the electric actuators have a one-to-one correspondence with the mobile phone client;
The electric actuator includes an electric control module, a signal acquisition module, a signal processing module, and an information transceiver module. The electronic control module is used to control the on-off value of the valve. The signal acquisition module is connected with the signal acquisition device and is used for acquisition. Signal, the signal processing module is connected with the signal acquisition module and used to process the signal, and the information transceiver module is connected with the communication base station through wireless information.
The signal acquisition device includes a temperature sensor, a pressure sensor and a flow sensor. The electronic control module includes a single-chip microcomputer, a 485 module, a power supply module and an AC contactor.
An intelligent valve remote control system works according to the following steps: 1) Signal acquisition: The electric actuator receives the real-time signal measured by the signal acquisition device through the signal acquisition module; 2) Signal processing: first in Set the standard parameter interval in the signal processing module of the electric actuator, and then compare the real-time signal with the preset parameters; 3) Determine whether the valve is abnormal: In the signal processing module, determine whether the real-time signal exceeds the standard parameter interval, if it exceeds, Then it is judged that the valve is abnormal, and go to the next step: if it is not exceeded, the valve is judged to be normal, and go to step 10); 4), signal transmission: the electric actuator sends the valve abnormal information through wireless information through the information transceiver module In the communication base station, and forwarded to the monitoring center via the communication base station; 5) Determine whether a confirmation is passed: the operator confirms that the real-time signal exceeds the standard parameter interval in the monitoring center, if the confirmation is passed, then go to the next step; such as If the confirmation is not passed, go to step 10);
6) Information transmission: The monitoring center sends the valve abnormal information to the communication base station via wireless information, and forwards it to the mobile phone client via the communication base station; 7), judges whether the second confirmation is passed: the user checks the valve through the mobile phone client Confirm the abnormal information. If the confirmation is passed, then go to the next step; if the confirmation is not passed, then go to step 10); 8), instruction sending: the user sends the valve switch adjustment information to the monitoring center through the communication base station , And then the monitoring center sends the action instructions to the information transceiver module of the electric actuator through the communication base station; 9), valve action: the information transceiver module in the electric actuator transmits the action instruction to the electronic control module to drive the valve action; 10) The valve stops and is over.
The present invention has the following beneficial effects: 1. The connection between each part of the present invention and the communication base station is carried out through wireless information, namely GSM or CDMA signals, and its transmission distance is extremely wide. After negotiation with major mobile operators, it can be borrowed Its communication base station. In this way, as long as it is within the coverage of the communication base stations of major mobile operators, the joint operation of the monitoring center, the mobile phone client and the electric actuator can be realized, and the purpose of ultra-remote control can be realized.
2. The present invention greatly shortens the working cycle. Specifically, once an abnormal condition (abnormal temperature, pressure or flow rate) occurs in the pipeline, the electric actuator can make a quick judgment and send a letter (steps 1-4), thereby After one or two confirmations, quickly issue an action command to the electric actuator (step 5-8). The signal transmission is fast, the response time is short, and the working cycle is extremely short.
3. The working method of the present invention includes a first confirmation (step 5) and a second confirmation (step 7), thereby effectively avoiding the wrong action of the electric actuator and greatly reducing the operating error rate.
4. The present invention can be widely used in municipal construction, such as gas pipelines, oil pipelines, water pipelines, steam pipelines, etc., which brings great convenience to the construction of smart cities. In addition, it can also effectively reduce the safety hazards in daily life (gas leaks, broken water pipes, etc.), improve safety and reduce waste of resources.
In summary, the present invention has the characteristics of wide transmission range, convenient communication, simple use, and easy promotion.
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