WO2023173390A1 - 一种高压大流量乳化液泵站智能化控制系统 - Google Patents
一种高压大流量乳化液泵站智能化控制系统 Download PDFInfo
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- WO2023173390A1 WO2023173390A1 PCT/CN2022/081606 CN2022081606W WO2023173390A1 WO 2023173390 A1 WO2023173390 A1 WO 2023173390A1 CN 2022081606 W CN2022081606 W CN 2022081606W WO 2023173390 A1 WO2023173390 A1 WO 2023173390A1
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- emulsion
- pressure
- liquid
- flow
- pump
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- 239000000839 emulsion Substances 0.000 title claims abstract description 247
- 239000007788 liquid Substances 0.000 claims abstract description 174
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000001914 filtration Methods 0.000 claims abstract description 44
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- 238000001223 reverse osmosis Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 238000005086 pumping Methods 0.000 claims description 13
- 238000005065 mining Methods 0.000 claims description 11
- 230000008030 elimination Effects 0.000 claims description 10
- 238000003379 elimination reaction Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 5
- 235000020681 well water Nutrition 0.000 claims description 4
- 239000002349 well water Substances 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 239000002455 scale inhibitor Substances 0.000 claims description 2
- 238000011109 contamination Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 21
- 238000011068 loading method Methods 0.000 description 9
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- 239000003245 coal Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
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- 230000010349 pulsation Effects 0.000 description 3
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- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
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- 230000009172 bursting Effects 0.000 description 1
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- 230000009699 differential effect Effects 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Definitions
- the invention relates to the technical field of underground pumping stations, and in particular to an intelligent control system for high-pressure and large-flow emulsion pumping stations.
- Emulsions are indispensable in the industrial production process. Without the emulsion system, the production equipment will not be able to work properly. If the emulsion supply is insufficient, it will also cause damage to the equipment and bring safety hazards to production and life. Therefore, emulsions are As an indispensable production factor in the industrial production process, the issue of emulsion supply is very important.
- the emulsion supply process requires the participation of emulsion pump stations. With the process of equipment modernization, more and more large-scale equipment are put into use. The required supply volume of emulsion pumping stations is also increasing, and the problem of insufficient supply capacity of existing emulsion pumping stations has become increasingly prominent. If the emulsion supply capacity is insufficient during equipment operation, production safety will be jeopardized.
- the emulsion pump station system is the power source of comprehensive mechanized mining equipment such as the hydraulic support of the working face. It is a key equipment to achieve high productivity and efficiency of the working face. The continuity, stability and reliability of its work are crucial to ensuring the safe production of coal enterprises and improving the economy. Benefits are of great importance.
- the control system of emulsion pump stations commonly used in coal mines still has problems such as complexity, low automation, and insufficient reliability.
- the present invention provides an intelligent control system for high-pressure and large-flow emulsion pump stations.
- an intelligent control system for the emulsion pumping station of the ultra-large mining height fully mechanized mining face was designed to improve the performance of the ultra-high-power transmission system.
- the present invention proposes an intelligent control system for a high-pressure and large-flow emulsion pump station, including a large-flow water treatment system, a large-flow automatic liquid dispensing device, a large-capacity emulsion tank, and a large-flow emulsion liquid supply.
- the mine water passes through the large-flow water treatment system for coarse filtration, fine filtration, and reverse osmosis treatment, and the water after reverse osmosis treatment is used for the preparation of emulsion
- the large-flow automatic liquid dispensing device is used to control the opening and running time of the electromagnetic water valve and water pump according to the liquid level height and concentration value of the emulsion in the large-flow emulsion tank, and set the emulsion in the large-flow emulsion tank.
- the emulsion in the large-capacity emulsion tank is pressurized by the pipeline booster pump, and the large-flow emulsion is transported to each emulsion pump through the pipeline booster pump, and the emulsion is sucked and mixed by each emulsion pump.
- Drainage work transport the emulsion to a large-flow emulsion supply station for centralized liquid supply.
- the high-pressure backwash filter station is used to backwash the emulsion and remove impurities in the emulsion. .
- the large-flow water treatment system includes rough filtration, fine filtration, and reverse osmosis treatment; the rough filtration uses a water inlet blue filter; the fine filtration includes a fiber ball filter, a scale inhibitor, and a bag filter. Precision filter with filter material; reverse osmosis membrane is used for reverse osmosis treatment.
- the large-flow automatic liquid preparation device includes an emulsion concentration sensor, an emulsion PH value sensor, an emulsion conductivity sensor, and an electromagnetic water valve; the emulsion concentration value is monitored in real time through the emulsion concentration sensor, and the emulsion PH value is used to monitor the emulsion concentration value in real time.
- the sensor monitors the PH value of the emulsion in real time, and the emulsion conductivity sensor monitors the conductivity of the emulsion in real time.
- the electromagnetic water valve is used to control the opening and closing of the water path used to configure the emulsion.
- a liquid level sensor is installed in the large-capacity emulsion tank, and the liquid level information in the emulsion tank is monitored through the liquid level sensor, and the action of the electromagnetic water valve is controlled based on the liquid level information.
- the large-flow emulsion liquid supply station adopts a centralized liquid supply method, and the high-pressure liquid output of all emulsion pumps is concentrated in the liquid supply station for unified liquid supply.
- the large-flow emulsion liquid supply station includes a hydraulic pulse elimination module, an inlet and outlet connection module, and a hydraulic debugging module;
- the hydraulic pulse elimination module is an accumulator, used to supplement leakage during high-pressure processes, absorb pressure pulses during high-pressure processes, and eliminate pipeline jitter caused by pulses;
- the liquid inlet connection module includes a liquid inlet collection block and high-pressure ball valves, which centrally supply the high-pressure liquid of each emulsion pump through the liquid inlet connection module, and connect or isolate the high-pressure liquid supply ports of each emulsion pump through the high-pressure ball valve;
- the liquid outlet connection module includes a liquid outlet collector The liquid block and liquid outlet joint collect the high-pressure liquid through the liquid outlet liquid collection block, connect it to the high-pressure liquid supply pipeline of the working surface through the liquid outlet joint, and finally transport the high-pressure liquid to the working surface equipment for use;
- the hydraulic debugging module is The pressure relief ball valve is used to simulate the fluid demand on the working surface by operating the opening of the pressure relief ball valve, and is used to debug system pressure changes when the system is loaded and unloaded.
- the high-pressure backwash filter station includes multiple parallel filter cartridges, which perform backwash filtration at the same time.
- Pressure sensors are configured at the inlet and outlet respectively.
- Four backwash electromagnetic pilot valves are configured on the backwash circuit to set the pressure. Differential action value and flushing interval.
- the system also includes a backwash and filtering station for backwashing and filtering the emulsion.
- the backwashed and filtered emulsion flows back to the large-flow emulsion tank for reuse. .
- the invention proposes an intelligent control system for a high-pressure and large-flow emulsion pump station, which solves the problem of liquid supply hydraulic pulsation by setting up a hydraulic pulse elimination module, ensures the balance of pressure inside and outside the pipeline, and eliminates the phenomenon of pipeline jitter and vibration.
- a hydraulic pulse elimination module ensures the balance of pressure inside and outside the pipeline, and eliminates the phenomenon of pipeline jitter and vibration.
- the large-flow water treatment system and high-pressure backwash filter station are used to realize emulsion filtration and mine water purification, and realize multi-stage filtration function and intelligent backwash function to ensure real-time continuous liquid supply to the emulsion pump while satisfying the pump station system. Control requirements for media contamination.
- Figure 1 is the overall layout of the intelligent control system of the medium-high pressure and large flow emulsion pump station of the present invention
- Figure 2 is a working principle diagram of the intelligent control system of the medium-high pressure and large flow emulsion pumping station of the present invention
- FIG. 3 is a working principle diagram of the large flow water treatment system in the present invention.
- Figure 4 is a flow chart of the intelligent control system of the medium-high pressure and large flow emulsion pumping station of the present invention
- an intelligent control system for high-pressure and large-flow emulsion pump stations includes a large-flow water treatment system, a large-flow automatic liquid dispensing device, a large-capacity emulsion tank, and a large-flow emulsion supply station.
- the flow automatic liquid dispensing device is used to control the opening and running time of the solenoid water valve and water pump according to the liquid level value and concentration value of the emulsion in the large-flow emulsion tank, and set the concentration of the emulsion in the large-flow emulsion tank.
- Automatic preparation the emulsion in the large-capacity emulsion tank is pressurized by the pipeline booster pump, and the large-flow emulsion is transported to each emulsion pump through the pipeline booster pump, and the liquid is sucked and discharged through each emulsion pump.
- Working, the emulsion is transported to the high-flow emulsion supply station, and the liquid is supplied through the high-flow emulsion supply station.
- the high-pressure backwash filter station is used to backwash the emulsion and remove impurities in the emulsion.
- the large-flow water treatment system first performs a primary rough filtration of the incoming water, filters large particulate matter and suspended solids through the inlet blue filter, and then reduces the inlet water pressure to the pretreatment operating pressure through the inlet pressure reducing valve.
- the water inlet safety valve protects the working pressure of subsequent equipment from damage to the equipment body due to overpressure caused by uncontrollable factors.
- One line supplies water to the spray pump, and the other line supplies fiber ball filter for secondary fine filtration.
- the fiber ball filter consists of a shell, inlet and outlet water filter cage/filter plate, fiber filter material, multi-way valve, hydraulic motor, etc.
- the filter cage/filter plate can effectively intercept large particles in the incoming water and prevent the filter material from escaping. It is the double insurance of the filter.
- the gaps in the filter material gradually become smaller along the direction of the water flow, and the fiber density becomes larger, forming an almost ideal filtration layer.
- the irregular stacking of the modified fiber filter material makes the filtration process both longitudinal and deep filtration. , and there is transverse deep filtration. Large suspended solids will be intercepted in the upper part, while small suspended solids that cannot be intercepted will flow downward. As the gaps in the filter bed gradually become smaller, they will be intercepted in the lower part, effectively Improved filtration accuracy and filtration speed.
- a three-stage precision filter is carried out, and 2 sets of bag filter material precision filters are used for combined filtration to thoroughly filter and remove all water-insoluble particles and heavy metal substances larger than 5 ⁇ m in the raw water to prevent contamination of the reverse osmosis membrane. clogged.
- This precision filter set does not have a separate water outlet and is only used for reverse osmosis water production.
- the reverse osmosis membrane group uses membrane separation and filtration technology powered by pressure difference. The pore size is nanoscale. Under a certain pressure, water molecules can pass through the membrane, while inorganic salts, heavy metal ions, organic matter, colloids, bacteria, and viruses in the source water are eliminated.
- the stainless steel purified water tank is used as a temporary storage tank for the final reverse osmosis water. It has a built-in remote control float valve that is linked to the water pump. It stops when the water is full and starts when the liquid level is low. No personnel is required.
- the large-flow automatic liquid dispensing device includes an emulsion concentration sensor, an emulsion PH value sensor, and an emulsion conductivity sensor. It monitors the emulsion concentration, PH value, and conductivity in real time and transmits the signals to the control system.
- Liquid level sensors are installed in the emulsified oil tank and emulsion tank respectively to collect and process liquid level information.
- the solenoid water valve is used to control the opening and closing of the water path used to configure the emulsion. Through the obtained information, the system processes and controls the start and stop of the proportioning pump motor and solenoid water valve according to the set parameter settings to ensure real-time replenishment of the emulsion tank.
- the automatic liquid dispensing process can be divided into manual mode and automatic mode.
- manual operation can be selected, or automatic judgment operation can be performed according to the system's liquid supply needs.
- the solenoid water valve and proportioning pump motor can be started and stopped.
- replenishment manually open the solenoid water valve, replenish water to the liquid tank, and detect the emulsion concentration at the same time. If the concentration is lower than the set value, turn on the proportioning pump motor to replenish oil until the concentration reaches the specified requirement; in automatic mode, when When it detects that the emulsion liquid level is low, it automatically opens the electromagnetic water valve for liquid replenishment, automatically detects the concentration, and turns on the proportioning pump for oil replenishment control to achieve the set concentration value.
- the large-flow automatic liquid dispensing device Through the large-flow automatic liquid dispensing device, real-time online monitoring of emulsion concentration, emulsion liquid level, and emulsified oil level can be realized, and real-time closed-loop feedback can automatically adjust precise liquid dispensing, replacing manual liquid dispensing.
- the large-flow water treatment system and high-pressure backwash filter station are used to realize emulsion filtration and mine water purification, and realize multi-stage filtration function and intelligent backwash function to ensure real-time continuous liquid supply to the emulsion pump while satisfying the pump station system. Control requirements for media contamination.
- the emulsion concentration sensor uses the principle of optical refraction to refract the shadow line between the bright area and the dark area generated by the refractometer. After detection by the digital CCD camera, it is automatically converted into a digital form based on the corresponding refractive index of different emulsified oil products. emulsion concentration value. With the support of a computer-controlled feedback system, the emulsion concentration sensor can automatically compensate and correct according to temperature, and can accurately detect the emulsion concentration. Since the detected emulsion circulates, the sensor does not need frequent cleaning and is basically maintenance-free.
- the emulsified oil is stored in the emulsified oil tank for liquid preparation (if there is insufficient emulsified oil in the emulsified oil tank, the oil pump can be turned on to refuel).
- the solenoid valve in the dispensing device opens the water inlet and detects the emulsion concentration online in real time to calculate the refueling time of the proportioning pump, and then controls the working time of the proportioning motor to achieve the set concentration value.
- the online detection of emulsion concentration can detect the emulsion concentration in the emulsion box in real time by turning on the circulation pump to circulate the emulsion.
- the detected concentration is transmitted to the control box in the form of a current signal (such as the concentration value is too low or the concentration value is too high), and the system in the control box will make adjustments to ultimately reach the emulsion concentration we set.
- the large-capacity emulsion tank adopts an intrinsically safe large-capacity emulsion tank to meet the working needs of high-pressure and extra-large flow high-end pump stations.
- the large-capacity emulsion tank is equipped with a liquid level sensor to monitor the emulsion level in real time. Once it falls below the minimum When the working liquid level is high, the liquid level sensor transmits the signal to the control center, and the control center then feeds back to the large-flow automatic proportioning device to control the water and oil inflow to the emulsion tank for liquid replenishment.
- the liquid level sensor sends a signal and stops replenishing liquid to the emulsion tank according to the above control method to achieve the liquid level control requirement of the emulsion tank.
- the large-capacity emulsion tank is also equipped with a pipeline boosting module (i.e., pipeline booster pump), which provides emulsion with a certain pressure for the large-flow emulsion pump to absorb liquid, ensuring that the large-flow emulsion pump absorbs sufficient liquid and avoids suction. Empty will affect the normal operation of the pump and ensure real-time and continuous liquid supply to the emulsion pump.
- the large-capacity emulsion tank in this embodiment is composed of two emulsion tanks.
- the two emulsion tanks exist at the same time to ensure sufficient supply of emulsion.
- the main tank of the emulsion tank is equipped with a sub-controller to control the supply of emulsion. Box to realize intelligent supply, use computer control to complete the supply work and ensure the reliability of emulsion supply; set up a backflush filter station before supplying liquid to the hydraulic support to backwash the emulsion to ensure the cleanliness of the emulsion , to prevent impurities in the emulsion from affecting the reliability of the hydraulic support.
- the sub-control box collects the emulsified liquid level, liquid temperature and emulsified oil level through the junction box, and at the same time communicates data with the main control box and other sub-control boxes through the bus.
- the solenoid valve In automatic mode, when the emulsion liquid level is lower than the "liquid level low” setting parameter, the solenoid valve is automatically opened until the liquid level is higher than the "liquid level high”. When the liquid level is lower than the "liquid level ultra-low", the system shuts down. Similarly, the liquid level, oil level, and liquid temperature can all be corrected for display values.
- the large-flow emulsion liquid supply station is designed with a centralized liquid supply method.
- the high-pressure liquid output from all emulsion pumps is finally concentrated at the liquid supply station for unified liquid supply.
- the pipeline connection method is simple and neat.
- the hydraulic pulse elimination module is an accumulator, used to supplement leakage in the high-pressure system, thereby reducing the number of actions of the electro-hydraulic unloading valve of each pump, extending the service life of the hydraulic components in the hydraulic system, and absorbing the pressure in the high-pressure system. Pulse to eliminate pipeline jitter caused by pulses.
- the accumulator adopts a capsule type, and the capsule is filled with nitrogen gas of a certain pressure.
- the accumulator is in a pressure accumulation state, that is, the interior of the accumulator is filled with high-pressure liquid with a certain capacity.
- the pump station When there is no demand for liquid supply, the pump station is in the unloading and liquid return state, and the high-pressure liquid supply pipeline instantly produces pressure loss and pressure pulses, which easily causes pipeline jitter. At this time, the high-pressure liquid in the accumulator replenishes the pressure in the pipeline in time.
- the inlet connection module includes an inlet liquid collection block and a high-pressure ball valve, which are used to connect the high-pressure liquid supply pipelines of each emulsion pump to connect the high-pressure liquid supply lines of each pump.
- the liquid is uniformly discharged to the liquid inlet collecting block for centralized liquid supply.
- the high-pressure ball valve can connect or isolate the high-pressure liquid supply port of each pump, so that each pump can be inspected without affecting the normal operation of the system, thus ensuring the normal liquid supply needs of the working surface;
- the liquid outlet connection module includes the outlet liquid collection
- the block and liquid outlet joint are used to concentrate the high-pressure liquid into the outlet liquid collection block, and are connected to the high-pressure liquid supply pipeline of the working surface through the liquid outlet joint.
- the high-pressure liquid is transported to the working surface equipment for use.
- the liquid outlet joint can be configured according to the requirements of different users, with flexible design and easy installation.
- the hydraulic debugging module mainly includes a pressure relief ball valve for debugging and connecting pipelines.
- the fluid demand on the working surface is simulated for debugging.
- the system pressure changes when the system is loaded and unloaded, so that the system can meet the automatic control fluid demand.
- the development of a large-flow emulsion liquid supply station with a hydraulic pulse elimination module, inlet and outlet liquid connection modules, and hydraulic debugging modules solves the problem of hydraulic pulsation in liquid supply, ensures pressure balance inside and outside the pipeline, and eliminates pipe jitter and vibration.
- the high-pressure backwash filter station uses multiple filter cartridges connected in parallel to perform filtration at the same time. It is equipped with pressure sensors at the inlet and outlet to detect the pressure difference.
- the backwash circuit is equipped with 4 backwash electromagnetic pilot valves.
- the control system performs backwash action according to the "pressure difference mode" or "time mode” selected by the operator.
- the pressure difference action value and flushing time interval can be set.
- the solenoid valve In the normal filtration state, the solenoid valve is in a de-energized state, the thrust piston on the recoil reversing valve is in the upper extreme position under the action of the spring force, and the moving piston in the recoil valve will be in the upper extreme position under the action of hydraulic force.
- the sewage outlet is closed, so the high-pressure liquid enters the outer cavity of the filter through the backwash valve, is filtered by the filter element, and is sent to the hydraulic support of the working surface.
- the filter When there is a significant pressure difference between the two pressure gauges on the liquid inlet end and the liquid outlet end, and reaches the preset set value, it means that dirt has partially blocked the filter holes of the filter element. At this time, the filter can be inspected. Backwash.
- the solenoid valve sends a signal, causing the solenoid valve to be energized to produce an action.
- the high-pressure fluid enters the thrust piston chamber above the recoil reversing valve.
- the moving piston in the recoil valve moves downward under the hydraulic pressure of the thrust piston, and Close the high-pressure liquid inlet and open the sewage outlet at the same time. Even if the original liquid inlet and sewage outlet are connected, the liquid filtered by other filters will flow out from the middle of the filter element, and the particles attached to the filter will be removed. The dirt is washed away and discharged from the drain outlet. After the sewage discharge is completed, the backwashing work of the next filter will be automatically carried out according to the preset program.
- the large-flow backwash filter station can discharge pollutants out of the filter station more thoroughly and improve the dirt-holding capacity of the filter element.
- the filter station has a reasonable layout, compact structure, simple installation and operation, and high reliability, which can meet the control requirements of the pump station system for medium pollution.
- the pumping station system contains 3 emulsion pumps, and the separate controls detect various data of the pumping station in real time, including oil temperature, oil pressure, oil level, motor winding temperature, motor bearing temperature, and electromagnetic unloading valve Working conditions, outlet pressure, inlet water pressure status, emulsion tank level, emulsified oil level, emulsion temperature, etc., and can adjust the operating status of the pump station through the signals fed back by each sensor.
- the emulsion enters the hydraulic support through the high-pressure backwash filter station, and the high-pressure backwash filter station cleans the emulsion.
- the cleaned emulsion enters the hydraulic support to prevent the emulsion from containing impurities and affecting the hydraulic support.
- the emulsion completes the working cycle, it enters the return liquid backwash filter station, where the emulsion is filtered again, and then the emulsion is fed into the emulsion system.
- the liquid tank enters the next working cycle to realize the recycling of emulsion, which is energy-saving, environmentally friendly, safe and reliable, reducing manual participation as much as possible and avoiding safety hazards caused by unfavorable supervision.
- the control system detects system pressure through an external system pressure sensor through a junction box, and performs bus communication control with the respective sub-control boxes of emulsion pump A, emulsion pump B, and emulsion pump C. In this mode, press the "Start” button on the main control box to start the system, and press the "Stop” button to stop.
- the booster pump When starting the pump, the booster pump will be automatically started to determine the pressure of the booster pump. If the pressure is normal, the emulsion pump will be started. If there is insufficient pressure, the emulsion pump will be started. The system stops.
- the electromagnetic unloading valve of the main pump loads immediately, the auxiliary pump delays loading with the "loading delay” set by the main control box, and the backup pump delays loading with 2 times the "loading delay”.
- the electromagnetic unloading valve of No. 1 pump unloads.
- the electromagnetic unloading valve of emulsion pump B unloads.
- the electromagnetic unloading valve of emulsion pump C unloads. uninstall.
- the deviation between the pressure sensor display value and the actual value is adjusted according to the "pressure correction %" coefficient.
- the system performs over-pressure shutdown protection according to the "over-pressure” pressure parameter setting, and the system performs over-pressure shutdown protection according to the "loss of pressure” pressure parameter setting and the pressure loss exceeds the "loss of pressure delay” "Time to perform shutdown protection due to pressure loss and pipe bursting.
- the booster pump is under-pressured, the emulsion level is low, the emulsion temperature is high, over-pressure or pressure loss occurs, the entire system shuts down.
- a certain pump fails locally or the local emergency stop button is pressed, the pump cannot start. Through the system pressure Whether it is reached is used to determine whether to start the next pump.
- the intelligent control system is divided into two control modes: “automatic” and “manual".
- the automatic control mode the start and stop of the motors of each pump station and the opening and closing of the unloading valves of each pump are centrally controlled by the main control box.
- the box monitors the status of the entire control system and performs display, alarm, and protection.
- the working process of the automatic mode is: first automatically start the emulsion pump A, using a frequency converter with a switchable industrial frequency conversion circuit.
- pump No. 1 runs with a variable frequency.
- emulsion pump A can only run at power frequency (automatic conversion) even in automatic mode.
- the frequency converter will increase the frequency rapidly.
- the emulsion pump B/ will be turned on in an automatic cycle.
- Emulsion pump C No. 2 automatically starts and stops the cycle, and emulsion pump B is a backup pump. If the pressure does not reach the "loading pressure" within the "start delay 3" time, the emulsion pump C will start.
- Manual control independently controls the manually started pump motor and unloading valve, and the system displays, alarms and protects the status information of the pump.
- the sub-control box collects crankcase lubricating oil status, motor temperature, etc. through the junction box, and at the same time communicates data with the main control box and other sub-control boxes through the bus.
- the operator must go to a certain pump and manually control the start and stop through the "start" button and "emergency stop” button.
- the booster pump When starting the pump, the booster pump will be automatically started. Loading and unloading pressure and solenoid valve action are the same as in automatic mode.
- the pump stops immediately when the lubricating oil temperature is too high, the oil pressure is too low, the oil level is too low, or the bearing temperature is too high.
- the booster pump when the booster pump is under-pressure, the emulsion level is low, the emulsion temperature is high, over-pressure, or under-pressure, the entire system shuts down.
- the above alarm values of each pump are set independently in their respective control boxes and do not affect each other.
- the intelligent unmanned control system of the high-pressure and large-flow emulsion pump station makes the hydraulic system in the coal mine underground safer and more reliable, has strong work continuity, is more efficient, and meets the needs of intelligence.
- the invention provides an intelligent control system for a high-pressure and large-flow emulsion pump station, which includes a large-capacity emulsion tank, a large-flow emulsion supply station, a large-flow automatic liquid dispensing device, a large-flow water treatment system, and a large-flow backwash. Filtration stations, emulsion pumps and pipeline booster pumps, etc.
- a large-flow emulsion liquid supply station with a hydraulic pulse elimination module, an inlet and outlet liquid connection module, and a hydraulic debugging module has been developed to solve the problem of hydraulic pulsation in the liquid supply, ensure the balance of pressure inside and outside the pipeline, and eliminate the phenomenon of pipe jitter and vibration. .
- the large-flow automatic liquid dispensing device Through the large-flow automatic liquid dispensing device, real-time online monitoring of emulsion concentration, emulsion liquid level, and emulsified oil level can be realized, and real-time closed-loop feedback can automatically adjust precise liquid dispensing, replacing manual liquid dispensing.
- the large-flow water treatment system and high-pressure backwash filter station are used to realize emulsion filtration and mine water purification, and realize multi-stage filtration function and intelligent backwash function to ensure real-time continuous liquid supply to the emulsion pump while satisfying the pump station system. Control requirements for media contamination.
- the invention can make the underground work in the coal mine more convenient and faster, with a relatively low degree of manual participation, making the underground work in the coal mine safer, reducing labor costs and labor intensity of workers, and saving time. It makes the work more accurate, reliable and efficient, which not only saves energy, but also reduces the loss of the pump station, saves production costs, and meets the needs of intelligent underground work.
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Abstract
一种高压大流量乳化液泵站智能化控制系统,系统包括大流量水处理系统(1)、大流量自动配液装置(3)、大容量乳化液箱(8)、大流量乳化液供液站(14)、高压反冲洗过滤站(19)、乳化液泵和管道增压泵。本控制系统能够在线监控,自动配液,保证管路内外压力平衡,消除管路抖动,满足泵站系统对介质污染的控制要求。
Description
本发明涉及井下泵站技术领域,具体涉及一种高压大流量乳化液泵站智能化控制系统。
在工业生产过程中乳化液不可或缺,若缺少乳化液系统所在的生产设备将无法正常工作,若乳化液供给不足也会造成设备的损坏,给生产生活带来安全隐患,因此,乳化液是工业生产过程中不可或缺的生产要素,乳化液供给问题就显得非常重要,乳化液供给过程中需要乳化液泵站的参与,随着设备现代化的进程,越来越多的大型设备投入使用,所需乳化液泵站的供给量也越来越大,现存乳化液泵站的供给能力不足问题愈发凸显,若设备工作过程中乳化液供给能力不足,将会危害生产安全。
目前,随着采矿技术的发展,各方面的技术都在飞速提升。乳化液泵站系统是工作面液压支架等综合机械化开采设备的动力源,是实现工作面高产高效的关键设备,其工作的连续性、稳定性与可靠性对于保证煤炭企业的安全生产和提高经济效益具有非常重要的意义。但是煤矿井下常用乳化液泵站控制系统仍存在复杂、自动化程度低、可靠性不足等问题。针对高压特大流量高端泵站的设计开发相对较少,制约了我们千万吨级综采工作面安全高效生产水平,不能满足当今高产高效综采工作面的使用要求。
发明内容
针对现有技术的不足,本发明提供一种高压大流量乳化液泵站智能化控制系统,为了满足超大采高综采工作面乳化液用液需求,针对现有乳化液泵站系统存在单台泵站流量低、传动系统可靠性不高、吸排液阀寿命短、系统响应速度慢等问题,设计一种超大采高综采工作面乳化液泵站智能化控制系统,提高超大功率传动系统在高速重载条件下的寿命和稳定性,改善吸排液阀性能,提高系统的响应速度。针对煤矿综采面对高压和特大流量的需求,进行乳化液的自动配液,使整个系统在无人值守的条件下工作,根据系统需求进行乳化液的智能化供给,实现自动化矿井生产,全面推进数字化矿井建设。
为实现上述技术效果,本发明提出了一种高压大流量乳化液泵站智能化控制系统,包括大流量水处理系统、大流量自动配液装置、大容量乳化液箱、大流量乳化液供液站、高压反冲洗过滤站、乳化液泵和管道增压泵;矿用井水经过大流量水处理系统进行粗过滤、精过滤、反渗透处理,反渗透处理后的水用于乳化液的配置,大流量自动配液装置用于根据大流量乳化液箱内乳化液的液位高度值、浓度值控制电磁水阀、水泵的开启和运行时间,对大流量乳化液箱内的乳化液进行设定浓度的自动配制,大容量乳化液箱内的乳化液经过管道增压泵进 行增压,通过管道增压泵将大流量乳化液输送至各个乳化液泵,经各个乳化液泵进行吸液与排液工作,将乳化液输送至大流量乳化液供液站,通过大流量乳化液供液站进行集中供液,高压反冲洗过滤站用于对乳化液进行反冲洗,去除乳化液中的杂质。
进一步地,所述大流量水处理系统包括粗过滤、精过滤、反渗透处理;所述粗过滤采用进水蓝式过滤器;所述精过滤包括含纤维球过滤器、阻垢剂、袋式滤料精密过滤器;采用反渗透膜进行反渗透处理。
进一步地,所述大流量自动配液装置包括乳化液浓度传感器、乳化液PH值传感器、乳化液电导率传感器、电磁水阀;通过乳化液浓度传感器实时监测乳化液浓度值,通过乳化液PH值传感器实时监测乳化液的PH值,通过乳化液电导率传感器实时监测乳化液的电导率,电磁水阀用于控制配置乳化液用的水路通断。
进一步地,所述大容量乳化液箱内安装有液位传感器,通过液位传感器监测乳化液箱内的液位信息,根据液位信息控制电磁水阀动作。
进一步地,所述大流量乳化液供液站采用集中供液方式,所有乳化液泵的高压出液都集中在供液站进行统一供液。
进一步地,所述大流量乳化液供液站包括液压脉冲消除模块,进、出液连接模块,液压调试模块;
所述液压脉冲消除模块为蓄能器,用于补充高压过程中的漏损,吸收高压过程中的压力脉冲,消除脉冲产生的管路抖动现象;所述进液连接模块包括进液集液块和高压球阀,通过进液连接模块将各台乳化液泵的高压液进行集中供液,通过高压球阀联通或隔断各台乳化液泵的高压供液口;所述出液连接模块包括出液集液块和出液接头,通过出液集液块集中收集高压液,通过出液接头与工作面高压供液管路相连接,最后将高压液输送至工作面设备使用;所述液压调试模块为泄压球阀,通过操作泄压球阀的开度来模拟工作面用液需求,用于调试系统加载和卸载时的系统压力变化。
进一步地,所述高压反冲洗过滤站包括多个并联的过滤筒,同时进行反冲洗过滤,在入口、出口分别配置压力传感器,反冲洗回路上配置4个反冲洗电磁先导阀,用于设置压差动作值和冲洗时间间隔。
进一步地,为了实现水资源的循环利用,所述系统还包括回液反冲过滤站,用于对乳化液进行反冲洗过滤,反冲洗过滤后的乳化液流回大流量乳化液箱进行重复利用。
本发明的有益效果是:
本发明提出了一种高压大流量乳化液泵站智能化控制系统,通过设置液压脉冲消除模块解决了供液液压脉动难题,保证了管路内外压力平衡,消除了管路抖动震动现象。通过大流 量自动配液装置,实现了乳化液浓度、乳化液位、乳化油位实时在线监控,实时闭环反馈自动调节精准配液,代替人工配液。利用大流量水处理系统以及高压反冲洗过滤站,实现了乳化液过滤和矿井水净化,实现多级过滤功能和智能反冲洗功能,保证为乳化液泵实时连续供液的同时,满足泵站系统对介质污染的控制要求。
图1为本发明中高压大流量乳化液泵站智能化控制系统总体布图;
图2为本发明中高压大流量乳化液泵站智能化控制系统工作原理图;
图3为本发明中大流量水处理系统工作原理图;
图4为本发明中高压大流量乳化液泵站智能化控制系统流程图;
图1中,1-大流量水处理系统,2-电磁阀A,3-大流量自动配液装置,4-乳化液浓度传感器,5-液位传感器A,6-乳化液PH值传感器,7-乳化液电导率传感器,8-大容量乳化液箱,9-液位传感器B,10-增压模块,11-液压脉冲消除模块,12-进液连接模块,13-液压调试模块,14-大流量乳化液供液站,15-出液连接模块,16-进口压力传感器,17-进口压力表,18-反冲阀,19-大流量反冲洗过滤站,20-电磁阀B,21-出口压力传感器,22-出口压力表。
下面结合附图和具体实施实例对发明做进一步说明。
如图1-4所示,一种高压大流量乳化液泵站智能化控制系统,包括大流量水处理系统、大流量自动配液装置、大容量乳化液箱、大流量乳化液供液站、高压反冲洗过滤站、乳化液泵和管道增压泵;矿用井水经过大流量水处理系统进行粗过滤、精过滤、反渗透处理,反渗透处理后的水用于乳化液的配置,大流量自动配液装置用于根据大流量乳化液箱内乳化液的液位高度值、浓度值控制电磁水阀、水泵的开启和运行时间,对大流量乳化液箱内的乳化液进行设定浓度的自动配制,大容量乳化液箱内的乳化液经过管道增压泵进行增压,通过管道增压泵将大流量乳化液输送至各个乳化液泵,经各个乳化液泵进行吸液与排液工作,将乳化液输送至大流量乳化液供液站,通过大流量乳化液供液站进行集中供液,高压反冲洗过滤站用于对乳化液进行反冲洗,去除乳化液中的杂质。
大流量水处理系统先进行一级进水粗过滤,通过进水蓝式过滤器过滤大颗粒物质、悬浮物,经过进水减压阀,降低进水压力使其达到预处理的运行压力,再经过进水安全阀来保护后续设备工作压力不因不可控因素而引起的超压损坏设备本体。一路供给喷雾泵用水,一路供给纤维球过滤器进行二级精过滤。纤维球过滤器由壳体、进出水滤笼/滤板、纤维滤料、多路阀、水力马达等组成。滤笼/滤板可有效拦截进水大颗粒物质进入及防止滤料跑出,是过滤器的双保险。过滤时,在水力作用下,滤料顺水流方向空隙由大逐渐变小,纤维密度变大, 形成近乎理想的过滤层面,改性纤维滤料的不规则堆叠使其过滤过程既有纵向深层过滤,又有横向深层过滤,大的固体悬浮物将在上部被截留,而小的未能被截留的固体悬浮物将下行,由于滤床的空隙逐渐变小,必将在下部被截留,有效地提高了过滤精度和过滤速度。之后进行三级精密过滤器,通过2组袋式滤料精密过滤器组合式过滤,彻底过滤清除原水中的大于5μm及以上的一切不溶于水的颗粒物和重金属物质,防止造成对反渗透膜污染堵塞。此精密过滤器组不设单独出水口,仅供反渗透制水。最后反渗透膜组利用压力差为动力的膜分离过滤技术,孔径为纳米级,在一定的压力下,水分子可以通过膜,而源水中的无机盐、重金属离子、有机物、胶体、细菌、病毒等杂质无法透过膜,从而使可以透过的纯水和无法透过的浓缩水严格区分开来。不锈钢净化水箱作为反渗透最终出水暂存水箱,内置遥控浮球阀与水泵联动,水满停机,低液位启动,无需人员值守。
大流量自动配液装置包括乳化液浓度传感器、乳化液PH值传感器、乳化液电导率传感器,实时监测乳化液浓度、PH值及电导率并将信号传送至控制系统。乳化油箱、乳化液箱内分别安装有液位传感器,采集并处理液位信息,电磁水阀用于控制配置乳化液用的水路通断。系统通过得到的信息,经过处理并根据设置的参数设置值对配比泵电机和电磁水阀进行起停控制,保证乳化液箱的实时补液。自动配液过程可分为手动模式和自动模式。根据现场实际操作要求,可选择人工手动操作,也可根据系统供液需求进行自动判断操作。对于手动模式下的乳化液浓度自动配比,可对电磁水阀和配比泵电机进行启停。当需要补液时,手动打开电磁水阀,向液箱补水,同时检测乳化液浓度,若浓度低于设定值,则打开配比泵电机进行补油直至浓度达到规定要求;自动模式下,当检测到乳化液位低时,自动开启电磁水阀进行补液,同时自动进行浓度检测,并开启配比泵进行补油控制,从而达到设定的浓度值。通过大流量自动配液装置,实现乳化液浓度、乳化液位、乳化油位实时在线监控,实时闭环反馈自动调节精准配液,代替人工配液。利用大流量水处理系统以及高压反冲洗过滤站,实现了乳化液过滤和矿井水净化,实现多级过滤功能和智能反冲洗功能,保证为乳化液泵实时连续供液的同时,满足泵站系统对介质污染的控制要求。
乳化液浓度传感器,利用光学的折射原理,经折光仪折射产生的亮区和暗区的分界阴影线,数字CCD照相机检测后,依据不同的乳化油品乘以相应的折光系数自动转化为数字形式的乳化液浓度值。乳化液浓度传感器在计算机控制反馈系统的支持下,能够依温度自动补偿修正,能够精确检测乳化液浓度;由于被检测乳化液循环流动,传感器不需要频繁清洗,基本是免维护。乳化油储存在乳化油箱内,供配液使用(如乳化油箱内乳化油不足可开启抽油泵加油)。需要配液时,配液器内的电磁阀打开进水,通过实时在线检测乳化液浓度,从而计算配比泵加油时间,然后控制配比电机的工作时间来达到设定的浓度值。乳化液浓度在线 检测通过开启循环泵将乳化液以循环的形式,实时检测乳液箱内的乳化液浓度。检测到的浓度以电流信号形式传给控制箱(如浓度值太低或浓度值太高),控制箱中的系统将会实施调整最终达到我们设定的乳化液浓度。
大容量乳化液箱采用本安型大容量乳化液箱,以满足高压特大流量高端泵站的工作需求,大容量乳化液箱中安装有液位传感器,实时监测乳化液液位,一旦低于最低工作液位,则液位传感器将信号传输给控制中心,控制中心再反馈至大流量自动配比装置来控制配液进水和进油到乳化液箱,从而进行补液。当液位上升到最高工作液位时,液位传感器发出信号,按照上述控制方式停止向乳化液箱补液,实现控制乳化液箱的液位要求。大容量乳化液箱内还配有管道增压模块(即管道增压泵),为大流量乳化液泵吸液时提供具有一定压力的乳化液,保证大流量乳化液泵吸液充足,避免吸空,影响泵的正常运行,保证为乳化液泵实时连续供液。
本实施例中的大容量乳化液箱是由两个乳化液箱构成的,两个乳化液箱同时存在保证乳化液供给量充足,在乳化液箱主箱上配备有控制乳化液供给的分控制箱,实现智能化供给,利用计算机进行控制,完成供给工作,确保乳化液供给的可靠性;在向液压支架供液前设置反冲过滤站,对乳化液进行反冲洗,确保乳化液的清洁性,防止乳化液中带有杂质,影响液压支架工作的可靠性,设有回液反冲过滤站,将液压支架使用后回液的乳化液进行反冲洗处理,防止乳化液中含有杂质的乳化液泵的正常工作带来影响,确保乳化液的清洁性,防止由于杂质带来的设备损坏,使整个工作过程的可靠性得到保证。
分控制箱通过分线盒采集乳化液位、液温、乳化油位,同时通过总线与主控箱和其他分控箱进行数据通信。自动模式时当乳化液位低于“液位低”设置参数时自动开启电磁阀直到液位高于“液位高”为止,液位低于“液位超低”时系统停机。同样液位、油位、液温均可进行显示值的修正。
大流量乳化液供液站采用集中供液方式设计,所有乳化液泵的高压出液最后都集中在供液站进行统一供液,管路连接方式简单、整齐。包括液压脉冲消除模块、进液连接模块、出液连接模块、液压调试模块等。液压脉冲消除模块为蓄能器,用于补充高压系统中的漏损,从而减少各台泵电液卸载阀的动作次数,延长液压系统中的液压元件的使用寿命,同时吸收高压系统中的压力脉冲,消除脉冲产生的管路抖动现象。蓄能器采用胶囊式,胶囊内充有一定压力的氮气,当系统处于正常供液状态时,蓄能器处于蓄压状态,也就是蓄能器内部充满了具有一定容量的高压液,当系统无供液需求时,泵站处于卸载回液状态,高压供液管路瞬间产生压力损失而发生压力脉冲,容易造成管路抖动,此时蓄能器内的高压液及时补充管路内的压力损失,从而吸收了压力脉冲,消除了管路抖动现象;进液连接模块包括进液集液块 和高压球阀,用于连接各台乳化液泵的高压供液管路,将各台泵的高压液统一排放到进液集液块进行集中供液。同时,高压球阀可联通或隔断各台泵的高压供液口,便于各台泵在检修时不影响系统的正常运行,从而保证工作面的正常供液需求;出液连接模块包括出液集液块和出液接头,用于将高压液集中到出液集液块,通过出液接头与工作面高压供液管路相连接,最后将高压液输送至工作面设备使用。出液接头可根据不同用户的要求配置,灵活设计,安装方便;液压调试模块主要包括调试用泄压球阀和连接管路,通过操作泄压球阀的开度来模拟工作面用液需求,来调试系统加载和卸载时的系统压力变化,从而使系统满足自动控制用液需求。开发具有液压脉冲消除模块、进、出液连接模块、液压调试模块的大流量乳化液供液站,解决了供液液压脉动难题,保证了管路内外压力平衡,消除了管路抖动震动现象。
高压反冲洗过滤站利用多个过滤筒并联,同时进行过滤,在入口、出口分别配置压力传感器,检测其压差。反冲洗回路上配置4个反冲洗电磁先导阀,控制系统根据操作者选择的“压差模式”或“时间模式”进行反冲洗动作,可以设置压差动作值和冲洗时间间隔。在正常过滤状态时,电磁阀处于失电的状态,反冲换向阀上面的推力活塞在弹簧力的作用下,处于上极端位置,反冲阀中的移动活塞在液压力的作用下,将排污口关闭,于是高压液经反冲阀进入过滤器的外腔,经滤芯过滤后,送至工作面的液压支架。当进液端与出液端的二个压力表有明显的压力差时,并达到预先设定的设定值时,表示脏物已将滤芯的过滤孔堵塞了一部分,此时可对过滤器进行反冲洗。电磁阀发出信号,使电磁阀带电后而产生一个动作,高压液进入反冲换向阀上面的推力活塞腔,反冲阀中的移动活塞在推力活塞的液压力作用下,向下运动,并将高压液的进液口关闭,同时将排污口打开,即使原进液口与排污口相通,于是经其他过滤器过滤后的液体,从滤芯的中间向外流出,将附着在滤网上面的脏物冲走并从排污口排出。排污完成后,自动按预先设定的程序,依次进行下一个过滤器的反冲洗工作。大流量反冲洗过滤站能比较彻底地将污染物排出过滤站,提高滤芯的纳污能力。过滤站布局合理,结构紧凑,安装操作简单,可靠性高,能满足泵站系统对介质污染的控制要求。
如图2所示,泵站系统内包含3个乳化液泵,分控实时检测泵站的各类数据,包括油温、油压、油位、电机绕组温度、电机轴承温度、电磁卸载阀的工作情况、出口压力、进液口水压状态、乳化液箱液位、乳化油油位、乳化液温度等,并能通过各个传感器反馈的信号来调节泵站运行状态。
利用反渗透处理的方法对井水进行过滤与反渗透,确保矿用井水的清洁度能够满足工作需要,接着,通过自动配比的方法配置出适合系统工作浓度的乳化液,将配置好的乳化液输送至乳化液箱,乳化液箱分为乳化液箱主箱与乳化液箱辅箱,乳化液经管道增压泵增压,增压后进入三个并联的乳化液泵A、乳化液泵B、乳化液泵C,三个乳化液泵共同向供液站供 液,确保乳化液的供给,乳化液经过高压反冲洗过滤站进入液压支架,高压反冲洗过滤站对乳化液进行清洁,清洁后的乳化液进入液压支架,以免乳化液中含有杂质,对液压支架造成影响,当乳化液完成工作循环以后进入回液反冲洗过滤站,将乳化液再次进行过滤,接着将乳化液输入乳化液箱,进入下一次工作周期,实现乳化液的循环利用,节能环保、安全可靠,尽可能降低人工参与,避免监管不利带来的安全隐患。
该控制系统通过分线盒外接系统压力传感器从而检测系统压力,并与乳化液泵A、乳化液泵B、乳化液泵C各自的分控制箱进行总线通信控制。该模式下在主控箱按“起动”按钮起动系统,按“停止”按钮停止,起泵时自动起动增压泵,判断增压泵压力,若压力正常则起动乳化液泵,若欠压则系统停止。压力降低到“加载压力”时,主泵电磁卸载阀立即加载,辅泵以主控箱设置的“加载延时”延时加载,备用泵以2倍“加载延时”延时加载。压力达到“卸载压力”时,1号泵电磁卸载阀卸载,压力达“卸载压力”98%时乳化液泵B电磁卸载阀卸载,压力达“卸载压力”96%时乳化液泵C电磁卸载阀卸载。根据“压力修正%”系数来调整压力传感器显示值与实际值的偏差,系统根据“过压”压力参数设置进行过压停机保护,根据“失压”压力参数设置并失压超过“失压延时”时间进行失压爆管停机保护。当增压泵欠压、乳化液位低、乳化液温度高、过压、失压时整个系统停机,某台泵本地发生故障或本地急停按钮按下时该台泵不能起动,通过系统压力是否达到来判断是否起动下一台泵。
所述智能化控制系统分为“自动”和“手动”2种控制模式,自动控制模式对各个泵站电机的起停、各台泵卸载阀的开闭均由主控箱集中控制,主控箱监控整个控制系统状态并进行显示、报警、保护。自动模式工作过程为:先自动起动乳化液泵A,采用工变频回路可切换的变频器,变频回路正常时1号泵变频运行。变频回路故障时即使自动模式下乳化液泵A也只能工频运行(自动转换)。系统压力低于“加载压力”时变频器迅速升频,若变频器已达到50Hz且“起延时2”时间内压力还达不到“加载压力”则以自动循环方式开启乳化液泵B/乳化液泵C;2号自动进行循环起停动作,乳化液泵B为备用泵。若“起延时3”时间内压力还达不到“加载压力”则乳化液泵C起动。
手动控制则是单独对手动起动的泵电机和卸载阀进行控制,系统对本台泵的状态信息进行显示和报警及保护。分控箱通过分线盒采集曲轴箱润滑油状态、电机温度等,同时通过总线与主控箱和其他分控箱进行数据通信。操作者必须到某台泵手动通过“起动”按钮和“急停”按钮进行起停控制,起泵时自动起动增压泵。加载卸载压力以及电磁阀动作与自动模式时相同。润滑油温过高、油压过低、油位过低或轴承温度过高时泵立即停机。同样,当增压泵欠压、乳化液位低、乳化液温度高、过压、欠压时整个系统停机。每台泵的上述报警值均在各自控制箱单独设置,互不影响。
该高压大流量乳化液泵站智能无人控制系统使煤矿井下的液压系统工作更加安全可靠,工作连续性强,更加有效率,满足智能化需求。
本发明提供了一种高压大流量乳化液泵站智能化控制系统,包括大容量乳化液箱、大流量乳化液供液站、大流量自动配液装置、大流量水处理系统、大流量反冲洗过滤站、乳化液泵和管道增压泵等。开发了具有液压脉冲消除模块、进、出液连接模块、液压调试模块的大流量乳化液供液站,解决了供液液压脉动难题,保证了管路内外压力平衡,消除了管路抖动震动现象。通过大流量自动配液装置,实现乳化液浓度、乳化液位、乳化油位实时在线监控,实时闭环反馈自动调节精准配液,代替人工配液。利用大流量水处理系统以及高压反冲洗过滤站,实现了乳化液过滤和矿井水净化,实现多级过滤功能和智能反冲洗功能,保证为乳化液泵实时连续供液的同时,满足泵站系统对介质污染的控制要求。
本发明能够使煤矿井下的工作更加方便快捷,人工参与的程度比较低,使煤矿井下工作更加安全,也降低人工成本与工人劳动强度,节约时间。使得工作更加精确可靠、高效,不但能起到节能的作用,还能降低泵站的损耗,节约生产成本,满足井下工作智能化需求。
Claims (8)
- 一种高压大流量乳化液泵站智能化控制系统,其特征在于,包括大流量水处理系统、大流量自动配液装置、大容量乳化液箱、大流量乳化液供液站、高压反冲洗过滤站、乳化液泵和管道增压泵;矿用井水经过大流量水处理系统进行粗过滤、精过滤、反渗透处理,反渗透处理后的水用于乳化液的配置,大流量自动配液装置用于根据大流量乳化液箱内乳化液的液位高度值、浓度值控制电磁水阀、水泵的开启和运行时间,对大流量乳化液箱内的乳化液进行设定浓度的自动配制,大容量乳化液箱内的乳化液经过管道增压泵进行增压,通过管道增压泵将大流量乳化液输送至各个乳化液泵,经各个乳化液泵进行吸液与排液工作,将乳化液输送至大流量乳化液供液站,通过大流量乳化液供液站进行集中供液,高压反冲洗过滤站用于对乳化液进行反冲洗,去除乳化液中的杂质。
- 根据权利要求1所述的一种高压大流量乳化液泵站智能化控制系统,其特征在于,所述大流量水处理系统包括粗过滤、精过滤、反渗透处理;所述粗过滤采用进水蓝式过滤器;所述精过滤包括含纤维球过滤器、阻垢剂、袋式滤料精密过滤器;采用反渗透膜进行反渗透处理。
- 根据权利要求1所述的一种高压大流量乳化液泵站智能化控制系统,其特征在于,所述大流量自动配液装置包括乳化液浓度传感器、乳化液PH值传感器、乳化液电导率传感器、电磁水阀;通过乳化液浓度传感器实时监测乳化液浓度值,通过乳化液PH值传感器实时监测乳化液的PH值,通过乳化液电导率传感器实时监测乳化液的电导率,电磁水阀用于控制配置乳化液用的水路通断。
- 根据权利要求1所述的一种高压大流量乳化液泵站智能化控制系统,其特征在于,所述大容量乳化液箱内安装有液位传感器,通过液位传感器监测乳化液箱内的液位信息,根据液位信息控制电磁水阀动作。
- 根据权利要求1所述的一种高压大流量乳化液泵站智能化控制系统,其特征在于,所述大流量乳化液供液站采用集中供液方式,所有乳化液泵的高压出液都集中在供液站进行统一供液。
- 根据权利要求5所述的一种高压大流量乳化液泵站智能化控制系统,其特征在于,所述大流量乳化液供液站包括液压脉冲消除模块,进、出液连接模块,液压调试模块;所述液压脉冲消除模块为蓄能器,用于补充高压过程中的漏损,吸收高压过程中的压力脉冲,消除脉冲产生的管路抖动现象;所述进液连接模块包括进液集液块和高压球阀,通过进液连接模块将各台乳化液泵的高压液进行集中供液,通过高压球阀联通或隔断各台乳化液泵的高压供液口;所述出液连接模块包括出液集液块和出液接头,通过出液集液块集中收集高压液,通过出液接头与工作面高压供液管路相连接,最后将高压液输送至工作面设备使用; 所述液压调试模块为泄压球阀,通过操作泄压球阀的开度来模拟工作面用液需求,用于调试系统加载和卸载时的系统压力变化。
- 根据权利要求1所述的一种高压大流量乳化液泵站智能化控制系统,其特征在于,所述高压反冲洗过滤站包括多个并联的过滤筒,同时进行反冲洗过滤,在入口、出口分别配置压力传感器,反冲洗回路上配置4个反冲洗电磁先导阀,用于设置压差动作值和冲洗时间间隔。
- 根据权利要求1所述的一种高压大流量乳化液泵站智能化控制系统,其特征在于,为了实现水资源的循环利用,所述系统还包括回液反冲过滤站,用于对乳化液进行反冲洗过滤,反冲洗过滤后的乳化液流回大流量乳化液箱进行重复利用。
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CN102120151A (zh) * | 2010-01-07 | 2011-07-13 | 淮南矿业(集团)有限责任公司 | 乳化液配置系统和方法 |
CN102188927A (zh) * | 2010-03-19 | 2011-09-21 | 淮南矿业(集团)有限责任公司 | 乳化液自动配比系统及液压供给系统 |
CN109516598A (zh) * | 2018-12-10 | 2019-03-26 | 山东东山新驿煤矿有限公司 | 一种应用在乳化泵站水处理净化系统 |
CN209714792U (zh) * | 2019-02-26 | 2019-12-03 | 安徽千一智能设备股份有限公司 | 一种矿用自动净化配比供液循环装置 |
CN110541452A (zh) * | 2019-09-16 | 2019-12-06 | 辽宁联胜机械制造有限公司 | 一种泵站多级过滤系统 |
CN215927463U (zh) * | 2021-09-22 | 2022-03-01 | 无锡威顺煤矿机械有限公司 | 一种集成电液一体化系统 |
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