Intelligent Water Flow Measure System

1. Well now washing industry research focuses on two aspects:A. Washing device design: such as the superconducting automatic flushing devices and low-energy wells flushing device. They improve flushing technology from the hardware side.B. Washing process choice: such as the self-energy in hot oil flushing process, the hollow rod flushing technology, pollution prevention string technology to automatically clear wax and paraffin control. Their purpose is to choose which kind of flushing material, adding a certain technology, primarily to reduce flushing caused by contamination of wells to improve washing well technology.2. Well washing will certainly involve the control of water, but the current flushing technique is often overlooked that. Therefore, we design intelligent water flow control system, in the well during the course of washing water temperature, water velocity, water flow to be detected, to control the purpose and supported by simple management functions, the number of staff records, flushing time was recorded. To further enhance the efficiency of washing wells.The system can be installed in other flushing devices, or used in a variety of flushing method to improve the control of the process of washing wells. A. The temperature of the water have certain requirements while washing wells, the water temperature too low, reaching less than a wax melting point, nor can the pharmaceutical lotion dissolve, and are not washed well wax purpose; while the water temperature is too high will waste a resources for water heating. Must therefore be real-time monitoring of water temperatures and show that the water temperature must be kept at a certain be considered within the scope of work, when the water temperature is too low or too high alarm, and then adjusted to achieve control purposes.B. The water flow there is a certain requirement while washing wells. When the total flow rate reaches a minimum value in order to achieve the amount of water needed for cleaning oil wells; when more than a certain maximum value on the waste water, and the restoration of the wells have a negative impact on the further exploitation of disadvantage. Therefore, the total water flow must be done real-time monitoring, so that water flow to maintain an appropriate value and show the total water consumption after the end of well washing.C. The water flow there is a certain requirement while washing wells. When the water flow rate is too low, wash well not be strong enough, but will also result in the final total flow is too low; when the flow rate is too high, will inevitably lead to water waste. It must be real-time monitoring and show water flow, so that the water flow to maintain an D. appropriate value. When the water velocity is too low or too high alarm, and then adjusted to achieve control purposes.E. System also should have a simple programming functions can be set when the beginning of each working temperature range of washing water wells, water flow rate range and can enter the number of workers, set the total time of this work.F. The corresponding display function, in two ways: one is prior to start work as a programmer input prompts workers to enter information, and displays the corresponding input. The other is after work began, showed the water temperature, water flow, water flow and working hours.G. The alarm function. Alarm by the combination of two parts, one voice alarm unit, that is, when at work, there are certain indicators can not meet the requirements is that the voice prompt alarm started. Second, is to show that the workers heard the voice of warning is prompted by viewing the information displayed on the indicator to determine is which does not meet the requirements, and then make adjustments.3. Deficiencies in the system:A. This system is based on the completion of the laboratory and the analysis of flow is carried out of simulation, there is no testing in real life situations. That did not use water driven turbine rotation, instead of using other methods to simulate the water driven turbine rotation. In other words turbine rotation speed of the flow rate is not with the value of the corresponding relationship. This deficiency can be tested by water to establish a correspondence relationship.B. Temperature and flow velocity is not a real-time acquisition, the system design is collected once every 10 seconds, so the process of work in the system may give rise to the temperature flow rate does not meet the requirements but have not detected the situation. The solution is to shorten the testing cycle, so check as much as possible to avoid leakage.C. Flow value is used method of counting the number of pulses, while the pulse width may be different, that is the speed of the water will not be uniform. Disturbing the flow of the calculation of the value of the error caused.D. Produced by the Hall element out of the pulse waveform is not a very good pulse shape, there is jitter, directly to the microcontroller processing, may have allowed measurement of the situation. We can plus a pulse-shaping circuit between Hall original interface and the microcontroller output to make the impulse more perfect.E. The system also does not take into account the whole system interference. A system of interference is usually room for interference; from the sun and other celestial bodies, radiation, electromagnetic waves, radio or communication transmitter of electromagnetic waves and so on; power supply system interference; due to high-power switch-off, the motor start and stop and other reasons, there are usually several hundred volts, and even kV pulse interference; the process of channel interference. Input and output signal lines, is too long, too much, or the grounding systems are imperfect, or the measurement unit insulation is not good, could bring about disruption. Interfere with the above three kinds of power supply system AC power interference is the worst.4. System improvements:A. Voice alarm: the system uses the buzzer alarm sounds, you can switch to voice alarm, that alarm at the same time which part of the tips are a problem for quick adjustment. You can use voice-chip T6668. Its internal non-data storage unit, externals RAM to store voice data, when the system problems arise, they call the corresponding voice alarm.B. Keyboard design:a. The original system keyboard is 15 keys, 10 numeric keys plus 4 function keys and an OK button. When pressing a function key such as a certain number, then enter the appropriate number, at last press the OK button. If the input is error, it needs to re-set. We can add a delete key, if the input is error, we can delete the wrong input. That is to add a delete button for input error. b. The system's initial input (number, upper and lower limits of temperature, upper and lower velocity of time) are in the system to wait for input before the start of work completed, and the system work. Once the system is working, then the original input data can not be changed. Here, we can improve to make the system even after the start of work can change these values. Only need to interrupt the method used, that is when the system press the four function keys (No. settings, temperature settings, flow rate settings and time setting) resulting in suspended, pending completion of re-start work input.C. Storage printing function: we can add a memory in the system used to store some data in this work. Then through the printer, the print job data is stored, which can achieve the management objectives.