CN114260264A - Low-carbon intelligent instrument cleaning system - Google Patents
Low-carbon intelligent instrument cleaning system Download PDFInfo
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- CN114260264A CN114260264A CN202210085685.9A CN202210085685A CN114260264A CN 114260264 A CN114260264 A CN 114260264A CN 202210085685 A CN202210085685 A CN 202210085685A CN 114260264 A CN114260264 A CN 114260264A
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Abstract
The invention discloses a low-carbon intelligent instrument cleaning system which comprises a water tank, a diesel tank, a cleaning agent tank, a waste liquid transfer tank, a chemical pump, an ultrasonic cleaning device, a hydraulic expansion piece, a cleaning pipeline, a separation and purification device and an intelligent control unit, wherein the cleaning agent tank is arranged in the water tank; the system adopts advanced computer control technology, frequency conversion control technology, ultrasonic cleaning technology, sensor technology and medium environmental protection processing technology, the whole cleaning process is controlled by an intelligent control unit, the switching of cleaning media, the adjustment of ultrasonic cleaning intensity, the starting and stopping of a chemical pump, the flow rate adjustment, the adjustment of cleaning medium temperature and the judgment of instrument cleanliness are automatically completed, and when an instrument is cleaned, the generated waste liquid is separated and then reused, so that full automation and no pollution are realized. The instrument cleaning finishing system automatically generates cleaning records, and is convenient to query. According to the cleanliness of the instrument, the system comprises a heavy oil instrument cleaning mode, a light oil and chemical product instrument cleaning mode and a water instrument cleaning mode. And carrying out mode selection on the upper computer.
Description
Technical Field
The invention belongs to the technical field of instrument cleaning, and relates to a low-carbon intelligent instrument cleaning system.
Background
Low-carbon economy has become the main direction of economic development in China, however, in the process of economic development, solid garbage, waste liquid and waste water are inevitably generated, and the treatment of the waste is usually carried out by heating separation, incineration and other treatment methods, and the methods all generate a large amount of carbon emission. In the process of calibrating the instrument in the flow calibration industry, the amount of waste liquid generated cannot be ignored. In recent years, transformation and upgrading of the Chinese industry are continuously promoted, the traditional low-end manufacturing industry is gradually upgraded to science and technology and digitization, more and more instruments are applied to various fields, the quantity is multiplied, the accuracy requirement on the instruments is higher and higher, and the requirements on verification and calibration of the flow meter are increased. Due to the different environments of the instruments, the operating media are very different, if the instruments are not cleaned before verification or calibration, the examination media can be polluted, and the minimum volume of the examination media is 100m for a general flow standard device3More detection media can even reach 3000m3At most, the cost of replacing each meter is very large, and if a set of flow standard device is separately built for each medium meter, the cost is immeasurable. It is a preferred practice in most laboratories to clean the meter prior to verification or calibration, and meter cleaning devices are becoming a self-contained product of flow calibration devices.
Traditional instrument belt cleaning device relies on manual operation completely, and is inefficient, and the multiple medium mixed liquid of discharge can cause the pollution to the environment moreover, handles these waste liquids and can increase the carbon emission volume of china.
Disclosure of Invention
In order to improve the cleaning efficiency of the instrument and reduce the carbon emission, the invention provides the low-carbon intelligent instrument cleaning system which has the advantages of more instrument cleaning calibers, high automation degree, intelligent judgment of the cleaning degree of the instrument, intelligent selection of the type and the amount of a cleaning medium, capability of recycling the generated waste liquid, less pollutant emission, reduction of the carbon emission and the like. The instrument online detection device has the advantages that the instrument online detection device can be thoroughly cleaned before online detection, waste liquid is collected, separated, purified and recycled, resource waste is reduced, and carbon emission is reduced.
The invention provides a low-carbon intelligent instrument cleaning system, which comprises: the device comprises a water tank, a diesel tank, a cleaning agent tank, a waste liquid transfer tank, a chemical pump, an ultrasonic cleaning device, a hydraulic expansion bend, a cleaning pipeline, a separation and purification device and an intelligent control unit; the water tank, the diesel tank and the cleaning agent tank are respectively connected with an inlet end of a chemical pump through pipelines, an outlet end of the chemical pump is connected with an inlet end of a cleaning pipeline through a pipeline, the instrument is installed on the cleaning pipeline and is clamped and fixed through a hydraulic expansion piece, and a pair of probes of the ultrasonic cleaning device are respectively installed on the cleaning pipelines at the front end and the rear end of the instrument; the outlet end of the cleaning pipeline is respectively connected with the inlet of the water tank, the inlet of the diesel tank, the inlet of the cleaning agent tank and the inlet of the waste liquid transfer tank through pipelines, the outlet of the waste liquid transfer tank is connected with a separation and purification device through pipelines, the separation and purification device is respectively connected with the water tank and the diesel tank, the separated diesel oil is returned to the diesel tank, and the purified water is returned to the water tank; all be equipped with the solenoid valve on the pipeline that water tank, diesel tank and cleaner case and chemical pump are connected, all be equipped with the solenoid valve on the pipeline of water tank, diesel tank, cleaner case and waste liquid transfer case and washing pipe connection, be equipped with velocity of flow governing valve and density changer at the exit end that washs the pipeline, the different cleaning medium cleaning instrument of on-off state control chemical pump extraction that intelligent control unit passes through the corresponding solenoid valve of control, intelligent control unit is according to the opening size of the numerical control velocity of flow governing valve of density changer and the on-off state of each solenoid valve.
In the low-carbon intelligent instrument cleaning system, the cleaning system is further provided with a temperature control unit, the temperature control unit comprises a heating pipe and a temperature controller, the temperature controller is respectively connected with the intelligent control unit and the heating pipe, the heating pipe is arranged in a water tank, and a heat insulation layer is arranged outside the water tank.
In the low-carbon intelligent instrument cleaning system, the separation and purification device comprises an oil-water separation device and a water purification device, wherein an outlet of the waste liquid transfer box is arranged at the bottom of the waste liquid transfer box and is connected with an inlet of the oil-water separation device through a pipeline, the separated diesel oil returns to a diesel oil tank through an outlet of the oil-water separation device, and the separated water enters the water purification device, is subjected to purification treatment and then returns to a water tank through a pipeline.
In the low-carbon intelligent instrument cleaning system, the cleaning pipeline is provided with a line sweeping air inlet valve and a line sweeping water outlet valve, and the intelligent control unit controls the line sweeping air inlet valve and the line sweeping water outlet valve to be opened so as to empty residual liquid in the cleaning pipeline.
In the low-carbon intelligent instrument cleaning system, a flow velocity meter, a temperature transmitter and a pressure transmitter are arranged on a pipeline for connecting a chemical pump and a cleaning pipeline, and the flow velocity meter is connected with an intelligent control unit.
In the low-carbon intelligent instrument cleaning system, the bottoms of the water tank, the diesel tank and the cleaning agent tank are provided with drain outlets, are provided with drain valves and are provided with a temperature transmitter, a liquid level transmitter and a density transmitter; the waste liquid transfer box is provided with an air inlet and an air outlet, and a temperature transmitter and a density transmitter are arranged in the waste liquid transfer box.
In the low-carbon intelligent instrument cleaning system, the cleaning system is provided with a frequency converter, the intelligent control unit realizes the control of the starting, the stopping and the speed of the chemical pump through the frequency regulation of the frequency converter, and a filter is arranged in the frequency converter to eliminate the interference of the frequency converter to the outside.
In the low-carbon intelligent instrument cleaning system, a plurality of cleaning pipelines are arranged in the cleaning system, and instruments with different calibers are clamped and fixed on the corresponding cleaning pipelines through hydraulic retractors.
In the low-carbon intelligent instrument cleaning system of the present invention, the intelligent control unit includes an upper computer and a lower computer connected to each other, and the lower computer includes: the system comprises a PLC controller, an A/D module, an I/O module, a D/A module and a power supply module; the power supply module supplies power to other modules of the lower computer;
the A/D module performs AD conversion on analog signals collected by the temperature transmitter, the pressure transmitter, the liquid level transmitter and the density transmitter and then sends the analog signals to the upper computer through a 232 interface, and the PLC converts signals collected by the current meter into pulse signals and then sends the pulse signals to the upper computer through the 232 interface;
the upper computer outputs a control signal according to the numerical value of the density transmitter, and the D/A module converts the control signal output by the upper computer into an analog signal and then controls the opening of the flow rate regulating valve and the frequency converter; the I/O module converts a control signal output by the upper computer into a switching signal and then controls the switching state of each electromagnetic valve so as to control the cleaning process; and the upper computer monitors the state of the cleaning system according to signals collected by the temperature transmitters, the pressure transmitters, the liquid level transmitters and the density transmitter.
Traditional instrument belt cleaning device relies on manual operation completely, and is inefficient, and the multiple medium mixed liquid of discharge can cause the pollution to the environment moreover, handles these waste liquids and can increase the carbon emission volume of china. The low-carbon intelligent instrument cleaning system has the advantages that the caliber of the cleaned instrument is large, the automation degree is high, the cleaning degree of the instrument is intelligently judged, the type and the amount of cleaning media are intelligently selected, the generated waste liquid can be recycled, the pollutant emission is less, the carbon emission is reduced, and the like. The instrument online detection device has the advantages that the instrument online detection device can be thoroughly cleaned before online detection, waste liquid is collected, separated, purified and recycled, resource waste is reduced, and carbon emission is reduced.
Drawings
FIG. 1 is a schematic diagram of a low carbon intelligent instrument cleaning system of the present invention;
FIG. 2 is a functional block diagram of the intelligent control unit of the present invention.
In the figure: 1-a water tank, 2-a diesel tank, 3-a cleaning agent tank, 4-a waste liquid transfer tank, 5-an oil-water separation device, 6-a water purification device, 7-a frequency converter, 8-a flow meter, 9-an ultrasonic cleaning device, 10-a hydraulic expansion piece, 11-a chemical pump, 12-a cleaning pipeline, 13-a heating pipe, 14-a temperature transmitter, 15-a pressure transmitter, 16-a density transmitter, 17-a liquid level transmitter, 18-a meter, 19-a flow rate regulating valve, 20-a scavenging air inlet valve and 21-a drain valve.
Detailed Description
As shown in fig. 1, the low-carbon intelligent instrument cleaning system of the present invention comprises: water tank 1, diesel tank 2, cleaner case 3, waste liquid transfer case 4, chemical industry pump 11, ultrasonic cleaning device 9, hydraulic pressure expansion bend 10, washing pipeline 12, separation purifier and intelligent control unit. Water tank 1, diesel tank 2 and cleaner case 3 are respectively through the entrance point of tube coupling chemical pump 11, and the exit end of chemical pump 11 passes through the entrance point of tube coupling washing pipeline 12, and instrument 18 installs on washing pipeline 12 and fixed through the 10 centre grippings of hydraulic pressure expansion bend, a pair of probe of ultrasonic cleaning device 9 is installed respectively on the washing pipeline 12 of instrument 18 front end and rear end. The exit end of wasing pipeline 12 is respectively through the import of tube coupling water tank 1, the import of diesel tank 2, the import of cleaner case 3 and the import of waste liquid transfer case 4, the export of waste liquid transfer case 4 is through tube coupling separation purifier, separation purifier is connected with water tank 1 and diesel tank 2 respectively, returns the diesel tank and will purify the water after with the diesel oil after the separation and return the water tank. All be equipped with the solenoid valve on the pipeline that water tank 1, diesel tank 2 and cleaner case 3 are connected with chemical pump 11, all be equipped with the solenoid valve on the pipeline that water tank 1, diesel tank 2, cleaner case 3 and waste liquid transfer case 4 are connected with cleaning tube 12, be equipped with flow rate control valve 19 and density changer 16 at the exit end that washs pipeline 12, intelligent control unit washs the instrument through the different cleaning medium of the on-off state control chemical pump 11 extraction of the corresponding solenoid valve of control, and intelligent control unit is according to the opening size of density changer 16's numerical control flow rate control valve 19 and the on-off state of each solenoid valve.
During specific implementation, cleaning system still is equipped with temperature control unit, temperature control unit includes heating pipe 13 and temperature controller, temperature controller is connected with intelligent control unit and heating pipe 13 respectively, and heating pipe 13 sets up in water tank 1, 1 externally mounted of water tank has the heat preservation.
When the device is specifically implemented, the separation and purification device comprises an oil-water separation device 5 and a water purification device 6, the outlet of the waste liquid transfer box 4 is arranged at the bottom of the waste liquid transfer box and is connected with the inlet of the oil-water separation device 5 through a pipeline, diesel oil after separation returns to the diesel oil tank 2 through the outlet of the oil-water separation device, and water after separation enters the water purification device 6 and returns to the water tank 1 through the pipeline after purification treatment.
In specific implementation, the cleaning pipeline 12 is provided with a sweep-line air inlet valve 20 and a drain valve 21, and the intelligent control unit controls the sweep-line air inlet valve 20 and the drain valve 21 to be opened so as to drain residual liquid in the cleaning pipeline 12.
During the concrete implementation, be equipped with velocity of flow appearance 8, temperature transmitter 14 and pressure transmitter 15 on the pipeline that chemical pump 11 and washing pipeline 12 are connected, velocity of flow appearance 8 is connected with the intelligent control unit.
In specific implementation, the bottoms of the water tank 1, the diesel tank 2 and the cleaning agent tank 3 are provided with sewage outlets, are provided with sewage valves and are provided with a temperature transmitter 14, a liquid level transmitter 17 and a density transmitter 16; the waste liquid transfer box 4 is provided with an air inlet and an air outlet, and a temperature transmitter 14 and a density transmitter 16 are arranged in the waste liquid transfer box.
During specific implementation, cleaning system is equipped with converter 7, and intelligent control unit realizes opening the stop, speed control to chemical pump 11 through the regulation to 7 frequencies of converter, be equipped with the wave filter in order to eliminate the converter interference to the external world in the converter 7.
In specific implementation, the cleaning system is provided with a plurality of cleaning pipelines 12, and meters 18 with different calibers are clamped and fixed on the corresponding cleaning pipelines 12 through the hydraulic expansion piece 10.
When the intelligent control unit is specifically implemented, the intelligent control unit comprises an upper computer and a lower computer which are connected with each other, and the lower computer comprises: the device comprises a PLC controller, an A/D module, an I/O module, a D/A module and a power module. The power supply module supplies power for other modules of the lower computer. The analog signals that AD conversion was carried out with temperature transmitter 14, pressure transmitter 15, liquid level transmitter 17 and density transmitter 16 collection to the AD module after send for the host computer through 232 interfaces, the PLC controller sends for the host computer through 232 interfaces after changing the signal conversion that the velocity of flow appearance was gathered into pulse signal. The upper computer outputs a control signal according to the numerical value of the density transmitter 16 at the outlet end of the cleaning pipeline 12, and the D/A module converts the control signal output by the upper computer into an analog signal and then controls the opening of the flow regulating valve 19 and the frequency converter 7; the I/O module converts a control signal output by the upper computer into a switching signal and then controls the switching state of each electromagnetic valve so as to control the cleaning process; and the upper computer monitors the state of the cleaning system according to signals collected by the temperature transmitters 14, the pressure transmitter 15, the liquid level transmitter 17 and the density transmitter 16.
The system adopts advanced computer control technology, frequency conversion control technology, ultrasonic cleaning technology, sensor technology, medium environment-friendly treatment technology and the like, the whole cleaning process is completely controlled by a computer, the switching of cleaning media, the adjustment of ultrasonic cleaning intensity, the starting and stopping of a circulating pump, the adjustment of flow rate, the adjustment of cleaning medium temperature and the judgment of instrument cleanliness are automatically completed, the instrument is cleaned, simultaneously, the generated waste liquid is separated and then recycled, and the full automation and no pollution are really realized. After the instrument is cleaned, the computer system can automatically generate a cleaning record, and the cleaning record is stored in a database for later query.
Technical requirements of the System
1. The cleaning medium employed in the system includes: clean water, diesel oil and a cleaning agent. The cleaning aperture and flow range is DN15-DN 400. The cleaning device can clean various flow instruments, and other cleaning works are completed on an upper computer except that the cleaned instruments need to be manually clamped.
Second, the technical design and selection of the main components of the system
1. Chemical pump:
according to the device washs the demand of bore, the energy-saving chemical pump of Kaiquan company production is selected for use to the pump, can satisfy the circulation requirement of three kinds of media, and chemical pump installation requirement accords with the rotating equipment installation requirement, and chemical pump installation design has independent installing support, installs the shock attenuation sloping iron additional, and chemical pump connecting tube's exit sets up the damping larynx. And (4) reasonably selecting the type according to calculation, and fully considering the optimal working interval of the chemical pump.
2. Water tank and cleaning water
The volume of the water tank is designed to be 2m3The material is 304 stainless steel, the integral welding process is adopted for manufacturing, a drain outlet is designed, a drain valve is installed, and an inlet pipeline connector and an outlet pipeline connector are matched on the water tank. The water tank is filled with clean water, the density is 0.95-1g/ml, and the clean water is one of media for cleaning the instrument. During the washing process, the water may be heated up to 50 ℃ for use.
3. Diesel tank and diesel
The volume of the diesel tank is designed to be 1m3The material is 304 stainless steel, the integrated welding process is adopted for manufacturing, a drain outlet is designed, a drain valve is installed, the diesel tank is in a sealing design, a breather valve is installed on the diesel tank, and an inlet and outlet pipeline connector is arranged on the diesel tank, so that the safety requirement is completely met. The diesel oil tank is filled with diesel oil, the density of the diesel oil is 0.83-0.85g/ml, the diesel oil tank is one of media for cleaning instruments, and the diesel oil tank is mainly used for cleaning the instruments of which the media are heavy oil.
4. Cleaning agent box and cleaning agent
The volume of the cleaning agent box is designed to be 1m3The cleaning agent box is made of 304 stainless steel, is manufactured by adopting an integrated welding process, is provided with a sewage draining outlet and a sewage draining valve, is in a sealing design, is provided with a breather valve and is provided with an inlet and outlet pipeline connector. The cleaning agent box is filled with a cleaning agent, a hydrocarbon quick-drying cleaning agent is selected, the density is 0.7-0.80g/ml, the instrument using light oil or chemical products as a medium is cleaned, and diesel oil remained on the instrument is cleaned at the same time.
5. Waste liquid transfer box
The volume of the waste liquid transfer box is designed to be 2m3The material is 304 stainless steel, the integrated welding process is adopted for manufacturing, a drain outlet is designed, a drain valve is installed, an inlet and outlet pipeline interface is matched on the waste liquid transfer box, and cleaning medium mixed liquid generated in the cleaning process is stored in the transfer box. The waste liquid transfer box has the functions of containing waste liquid and volatilizing, and is used after being usedThe cleaning agent is volatilized in the tank to form gas, which is discharged into the atmosphere. The waste liquid transfer box is provided with an air inlet and an air outlet which are respectively provided with a valve, when in use, low-pressure compressed air is injected into the waste liquid transfer box, the air circulation in the waste liquid transfer box is increased, and the volatilization of the cleaning agent is accelerated.
6. Cleaning pipeline
1) The cleaning pipeline is made of a national standard (GB) fluid steel pipe, 304 stainless steel is adopted, and the surface is polished. The flange is made of 304 stainless steel according to national standards; the welding position of the test pipe section is flat, smooth, beautiful and has no leakage.
2) And each cleaning pipeline is additionally provided with a scavenging line air inlet valve and a scavenging line water outlet valve near the hydraulic meter clamping device, and air is fed to the scavenging line as required. Each cleaning pipeline is additionally provided with a flow direction mark.
3) A water outlet is designed below the pipeline of the cleaned instrument, and water remained in the pipeline is discharged and connected to the water tank after the cleaning is finished.
7. Hydraulic expansion device
1) The hydraulic expansion piece adopts a hydraulic control mode to clamp the cleaned instrument and is provided with a hydraulic station, and the clamping force is adjustable;
2) the liquid receiving part of the hydraulic expansion piece is made of 304 stainless steel.
3) The telescopic length of the hydraulic telescopic device is as follows: the diameter is more than or equal to 200mm, and the cleaning device is combined with the cleaning of the short section, so that the requirement on the installation size of a cleaned instrument can be met;
4) the system designs 3 hydraulic retractors in total, and the specifications are as follows: DN50, DN200, DN 400.
8. Scavenging air inlet valve
A compressed air inlet is designed on the cleaning pipeline, a line sweeping air inlet valve is installed at the upper end of the air inlet, and the on-off of a high-pressure air source is controlled to clean residual water in the pipeline. The scavenging air inlet valve is controlled by DV24V and is of a normally closed type.
9. Frequency converter
The system is provided with 14 KW frequency converter, and can realize the control of starting, stopping, speed regulation and the like of the chemical pump. The built-in wave filter of converter eliminates the converter and disturbs to external ground, accomplishes the control to the chemical industry pump through the frequency control of host computer to the converter, and this kind of control mode can satisfy the needs of velocity of flow regulation, can reduce the running cost of device again to improve the security of whole equipment.
10. Ultrasonic cleaning device
The ultrasonic cleaning device adopts a physical mode to enhance the cleaning capability of the device, and the ultrasonic cleaning device can adjust the intensity of ultrasonic waves according to different cleanliness of the instrument. A total of 3 sets of ultrasonic generating devices are arranged, and each cleaning pipeline is provided with an ultrasonic cleaning device. The ultrasonic cleaning device is installed in an insertion mode, and a pair of ultrasonic generating probes are installed at the front end and the rear end of the cleaned instrument respectively.
11. Flow rate regulating valve
Install the velocity of flow governing valve additional in the pipeline, through host computer automatic control, adjust the velocity of flow of cleaning medium in the pipeline according to the cleanliness of instrument to adjust and wash intensity, the velocity of flow governing valve adopts electric control.
12. Sensor with a sensor element
1) The pressure transmitter:
the measurement accuracy grade is 0.2%, the measurement range is (0-1.0) MPa, the output signal is (4-20) mA, and the power supply DC24V is provided.
2) A temperature transmitter:
the measuring accuracy grade is 0.2 grade (PT100), the measuring range is (0-50) DEG C, the output signal is (4-20) mA, and the power supply DC24V is provided.
3) A flow velocity meter:
the accuracy is 0.5 level, the output signal is a pulse signal, and the supply voltage is AC 220V.
4) A density transmitter:
the measuring range is 0-2g/ml, the precision is 0.001g/ml, the output signal is 4-20mA, and the power supply voltage DC24V is provided.
5) A liquid level transmitter:
the measuring range is 0-1000mm, the precision is 0.5mm, the output signal is 4-20mA, and the power supply voltage DC24V is provided.
13. Intelligent control unit
An upper computer of the intelligent control unit adopts an industrial touch screen integrated machine; the PLC controller adopts a PLC S7-300 programmable controller produced by Siemens.
1) An upper computer: the touch type, I5 processor, 8G running memory, 1T hard disk, 17 inch touch screen;
2) PLC fastener, switching power supply, relay, terminal row's electrical components such as integrate inside the device. And shaping the pulse signals transmitted by the instrument and then transmitting the pulse signals to an upper computer.
3) An I/O module, an A/D module, and a D/A module. The acquisition of field analog signals can be completed; sending an analog quantity signal to the field equipment, and controlling the flow regulating valve and the frequency converter to act; sending a switching value signal to a field to control the action of the solenoid valve; the power module provides stable DC24V, DC12V power for the field instrument.
14. Separation and purification device
1) Oil-water separation equipment: the method comprises the following steps of (1) conveying cleaning mixed liquid in a waste liquid transfer tank into a liquid centrifugal separator by adopting the liquid centrifugal separator, enabling the mixed liquid to enter a rotary drum under the action of a vortex disc, enabling the mixed liquid to rotate synchronously with the rotary drum quickly in a bulkhead area formed by a Fu plate, and enabling heavy-phase liquid with high specific gravity to gradually get away from the center of the rotary drum and lean against the wall of the rotary drum in an upward flowing process under the action of centrifugal force; the light phase liquid with smaller specific gravity gradually gets away from the wall of the rotary drum and leans to the center, the clarified two-phase liquid finally respectively enters the collection chamber through respective weir plates and is respectively led out of the machine through the leading pipe, the diesel oil is sent back to the diesel oil tank, the separated water is conveyed into the water purification equipment, the solid residue generated in the separation process is discharged from the solid waste port, and the whole process is a physical process without adding any chemical reagent. The system adopts CWL550 type liquid centrifugal separator, and the maximum separation capacity is 15m3/h。
2) Water purification apparatus: adopt small-size reverse osmosis water purification unit, can purify the water after the washing to clean water degree, water purification unit concrete purification procedure as follows:
coagulation and precipitation treatment: by adding high molecular substances (flocculating agents) into source water, fine and loose floccules in a water body become thick and dense, and rapid precipitation is facilitated.
② multi-medium filter: the filter is filled with refined filter materials with different sizes and types, which are arranged from top to bottom and from small to big in sequence, and can remove suspended substances, silt, clay, humus and the like in the water body, so that the effluent turbidity achieves an ideal effect.
Activated carbon adsorption filter: the active carbon adsorption filtration is one of the main devices for water quality pretreatment, and can carry out chemical adsorption on substances with various properties and remove peculiar smell, organic matters, colloid, residual chlorine and the like in water.
Softening the unit: the total amount of calcium and magnesium ions in the water is called as the hardness of water, insoluble precipitates (water scale) are easily generated in the daily life and industrial water use process, inconvenience is brought to life and production, and the softening unit can effectively remove the calcium and magnesium ions in the water, so that the hardness of the effluent water is less than or equal to 0.02mmol/L.
Fine filtering: the filter body is made of stainless steel, the filter element is made of PP (polypropylene) through spray melting, the hole shape is of a conical structure, the filter has the characteristics of large dirt holding capacity, long service life, easiness in replacement and the like, and the filtering precision is different from 0.1-50 mu m.
The system is controlled by an industrial computer, and can complete the functions of real-time control, data acquisition, remote operation and the like of equipment such as an on-site chemical pump, a frequency converter, a valve and the like, and realize the automation of control and data processing. The system cleaning control and the power control are completely independent, and the safety is higher. An emergency stop key is arranged on a cleaning interface, so that the emergency stop key can timely respond to abnormal conditions, and the safety of equipment and personnel is guaranteed.
Third, cleaning mode
The system is provided with a heavy oil instrument cleaning mode, a light oil and chemical product instrument cleaning mode and a water instrument cleaning mode according to the cleanliness of the cleaned instrument. In the host computer, provide washing mode selection, after being washd the instrument installation and taking one's place, operating personnel can select corresponding washing mode according to different instruments.
1. Cleaning a heavy oil instrument:
stage one: when an operator selects a heavy oil cleaning mode in the upper computer, the system can automatically start the heating device to heat water in the water tank until the water is heated to 50 ℃ and then automatically stop. After a temperature sensor in the water tank detects that the temperature is 50 ℃, the system can automatically open a diesel tank outlet electromagnetic valve, open a valve of a corresponding cleaning pipeline, open an inlet electromagnetic valve of a waste liquid transfer box, set the opening degree of a flow rate regulating valve to be 20%, start a chemical pump, at the moment, a medium in a pipeline of the whole system can run at an extremely low flow rate, and a flow meter monitors the flow rate of the cleaning medium in the cleaning pipeline in real time and displays the flow rate in an interface of an upper computer. When the cleaning medium-diesel oil is filled in the whole cleaning pipeline, the system reads the density value of the medium in the cleaning pipeline, judges the cleanliness of the instrument according to the density change percentage of the diesel oil, then starts the ultrasonic cleaning device, and adjusts the intensity of the ultrasonic cleaning device according to the cleanliness of the instrument. Opening ultrasonic cleaning device simultaneously, the velocity of flow governing valve aperture is adjusted to 0%, soak the instrument with diesel oil and use ultrasonic cleaning simultaneously, the system timing begins, after 60 seconds, ultrasonic cleaning ends, control velocity of flow governing valve aperture to 100%, the frequency converter frequency sets for 30Hz, improve the velocity of flow of cleaning medium in the washing pipeline, wash the instrument, when the density of diesel oil in the pipeline is when 0.83-0.855g/ml, the host computer can gather 3 times density value in next 6 seconds, if all in this interval, explain stage one and wash the completion. The system automatically closes the chemical pump and closes the outlet valve of the diesel tank.
And a second stage: the system automatically opens an outlet electromagnetic valve of the cleaning agent box, opens an inlet electromagnetic valve of the waste liquid transfer box, starts the chemical pump, the opening degree of the flow rate regulating valve is 50%, the frequency of the frequency converter is set to be 30Hz, the cleaning agent is enabled to flush the instrument, when the density in the pipeline reaches 0.7-0.8g/ml, the upper computer can collect the density value for 3 times in the next 6 seconds, if the density value is in the interval, it is indicated that no diesel oil is left in the instrument, and the cleaning in the second stage is completed. The system can automatically close the chemical pump and close the electromagnetic valve at the outlet of the cleaning agent box.
And a third stage: when closing cleaner case export solenoid valve, open water tank export solenoid valve, the system automatic start chemical industry pump, the frequency sets for 30Hz, flow rate regulating valve opening sets up to 50%, the detergent in the water flushing instrument, when pipeline density is between 0.95-1.0g/ml, the host computer will gather 3 times density value in following 6 seconds, if all in this interval, the system can open the import solenoid valve of water tank, close waste liquid transfer case import solenoid valve, flow rate regulating valve opening sets up to 100%, circulate after 30 seconds, host computer automatic shut chemical industry pump, close water tank inlet and outlet valve, close and wash the pipeline valve.
And a fourth stage: when the cleaning pipeline valve is closed, the system control pipeline scavenging air inlet valve and the drain valve are opened, water in the pipeline can be discharged and returns to the water tank, the system monitors the change of pressure in the cleaning pipeline in real time, when the water in the pipeline is drained, the pressure value is reduced to a certain value, the system can close the scavenging air inlet valve and close the drain valve, and the prompt operator can take down the cleaned instrument.
And a fifth stage: after the full-automatic cleaning of the instrument is finished, the system can record information such as time used in the instrument cleaning process, cleaning media used, cleanliness of the instrument after cleaning, names of operators and the like, and the information is stored in a database in a summarized report form, so that the instrument can be conveniently inquired when needed.
2. Light oil and chemical product instrument cleaning mode:
stage one: after an operator selects a light oil and chemical product instrument cleaning mode in the upper computer, the system can automatically start the heating device to heat water in the water tank until the water is heated to 50 ℃ and then automatically stops. When the temperature sensor detects that the temperature is 50 ℃, the system automatically opens an outlet electromagnetic valve of the cleaning agent box, opens an inlet electromagnetic valve of the waste liquid transfer box, starts a chemical pump, the frequency of a frequency converter is set to be 25Hz, the opening degree of a flow rate regulating valve is 20 percent, so that the cleaning agent is filled in a cleaning pipeline, the cleaning agent circulates at an extremely low flow rate to soak an instrument, the system reads the density value of a medium in the pipeline, judges the cleanliness of the instrument according to the density change percentage of the cleaning agent, sets the opening degree of the flow rate regulating valve to be 0 percent, starts an ultrasonic cleaning device to adjust to proper strength, a timer starts to time, after 60 seconds, sets the opening degree of the flow rate regulating valve to be 50 percent, a density transmitter monitors the density change in the pipeline in real time, when the density in the pipeline reaches 0.7-0.8g/ml, an upper computer can acquire the density value within the next 6 seconds, if the density value is within the interval, the oil stain cleaning in the instrument is completed, the system can automatically close the chemical pump, close the electromagnetic valve at the outlet of the cleaning agent box, and the cleaning in the first stage is completed.
And a second stage: when closing cleaner case export solenoid valve, open water tank export solenoid valve, the system automatic start chemical industry pump, the frequency sets for 30Hz, flow rate regulating valve opening sets up to 50%, the detergent in the water flushing instrument, when pipeline density is between 0.95-1.0g/ml, the system can gather 3 times density value in following 6 seconds, if all in this interval, the system can open water tank inlet valve, close waste liquid transfer case inlet valve, flow rate regulating valve opening sets up to 100%, circulate behind 30 seconds, the system self-closing chemical industry pump, close water tank inlet and outlet valve, close and wash the pipeline solenoid valve. And finishing the cleaning in the second stage.
And a third stage: when the cleaning pipeline valve is closed, the system control pipeline scavenging air inlet valve and the drain valve are opened, water in the pipeline can be discharged and returns to the water tank, the system monitors the change of the pressure in the pipeline in real time, when the water in the pipeline is drained, the pressure value is reduced to a certain value, the system can close the scavenging air inlet valve and close the drain valve, and the prompt operator can take down the pipeline to be cleaned.
And a fourth stage: after the full-automatic cleaning of the instrument is finished, the system can record information such as time used in the instrument cleaning process, cleaning media used, cleanliness of the instrument after cleaning, operators and the like, and the information is stored in a database in a summarized report form, so that the instrument is convenient to inquire later.
3. Cleaning a water meter:
stage one: when an operator selects a water meter cleaning mode in an upper computer, the upper computer automatically opens an outlet valve of a water tank, opens an inlet valve of a waste liquid transfer tank, starts a chemical pump, sets the frequency of a frequency converter to be 25Hz, sets the opening degree of a flow rate regulating valve to be 20 percent, allows water to fill a cleaning pipeline, circulates at an extremely low flow rate, soaks the meter, reads the density value of a medium in the pipeline, judges the cleanliness of the meter according to the percentage of the change of the water density, sets the opening degree of the flow rate regulating valve to be 0 percent, starts an ultrasonic cleaning device, automatically regulates the intensity of ultrasonic waves according to the cleanliness of the meter, starts timing by a timer, sets the opening degree of the flow rate regulating valve to be 50 percent after one minute, improves the flow rate of the pipeline, flushes the meter, monitors the density change in the pipeline in real time by a density transmitter, when the density in the pipeline reaches 0.95-1.00g/ml, the upper computer collects the density value within the next 6 seconds, if all in this interval, it is accomplished to explain impurity washing in the instrument, and the system can close waste liquid transfer case import valve, closes the chemical industry pump. And finishing the cleaning in the first stage.
And a second stage: when closing waste liquid transfer case outlet valve, opening water tank inlet valve, the system automatic start chemical industry pump, the frequency is set for 30Hz, and the velocity of flow governing valve aperture sets up to 100%, circulates 30 seconds, washes the instrument with the water of high velocity of flow, and water this moment gets back to the water tank, and computer automatic shut-down chemical industry pump after 30 seconds closes water tank inlet and outlet valve, closes the pipeline valve, and stage two washs and accomplishes.
And a third stage: after the pipeline valve is closed, the system control pipeline sweeps line admission valve and drain valve and opens, and water in the pipeline can be discharged, gets back to the water tank, and the change of pressure in the real time monitoring pipeline of system this moment, when the pipeline normal water evacuation, when the pressure value drops to a definite value, the system can close and sweep the line admission valve, closes the drain valve, and suggestion operating personnel can take off by the washing instrument.
And a fourth stage: after the full-automatic cleaning of the instrument is finished, the system can record information such as time used in the instrument cleaning process, cleaning media used, cleanliness of the instrument after cleaning, operators and the like, and the information is stored in a database in a summarized report form, so that the instrument is convenient to inquire later.
Fourthly, the system can realize the following control functions:
1. the system can realize the automatic cleaning of the instrument, automatically select cleaning media according to the cleanliness of the instrument, control the cleaning time of each cleaning medium, control the opening and closing of a valve, adjust the flow rate of the cleaning media, open and close an ultrasonic cleaning device and discharge liquid in a pipeline.
2. The system can realize that the computer automatically collects relevant data, can collect signals such as temperature, pressure, liquid level, density, valve opening degree and the like in the operation of the device, and displays the signals on an operation interface of the computer in real time, and the signals can be used as the basis for judging the cleaning process by the computer.
3. The system can collect the temperature in the water tank and control the heating system to heat the water to a set value.
4. The system can collect the temperature in the diesel tank, detect the temperature change in the diesel tank, and when the temperature in the diesel tank rises, can automatic shutdown equipment operation, guarantee the operation safety of device.
5. The temperature in the cleaning agent case can be gathered to the system, prevents that the too high emergence of cleaning agent temperature is dangerous. The system can automatically shut down the device to send out an over-temperature alarm.
6. The temperature in the waste liquid case can be gathered to the system, prevents that waste liquid case high temperature from taking place danger. When the temperature exceeds the set temperature, the system can automatically shut down the device to send out an over-temperature alarm.
7. The system can collect the density in the water tank, and when the density of the water in the water tank is higher than a set value, the system can prompt separation and purification.
8. The system can collect the density in the diesel tank, and when the density of the diesel is higher or lower than a set value, the system can prompt separation and purification.
9. The system can collect the density in the cleaning agent box, and when the density of the cleaning agent is higher or lower than a set value, the system can prompt separation and purification.
10. The system can collect density changes in the cleaning pipeline in real time and display the density changes on a system interface in a curve mode, and an operator can conveniently and visually observe the density changes in the pipeline, so that the changes of the cleanliness of the instrument can be known.
11. The system can gather the liquid level change of water tank, diesel tank, cleaner case, waste liquid case, and when the liquid level was less than the setting value, the system can indicate to add corresponding cleaning medium.
12. And (3) displaying a flow: drawing a cleaning process picture in a dynamic process schematic diagram form, and displaying the running state of each pipeline, parameters such as the flow velocity of a cleaning medium in the pipeline, the pressure, the temperature and the like and the running state of equipment in a plan diagram form.
13. And (3) report management: the main operation parameters, the equipment operation state and the like of the system can be recorded in the report form, and the report form can be manually printed and is convenient to check.
14. Message management: and displaying fault information in the forms of color change, pop-up windows and tables of the main interface, and setting related parameter overrun alarm and equipment fault alarm. Providing an automatic overload protection function for the electronic scale;
15. user/security management: the level needs to be set for operations such as starting and stopping of the field device, setting of parameters and the like, misoperation is prevented, meanwhile, the interlocking function is set for the field device, and the safety of the device and operators is guaranteed through the functions.
16. And (3) system management: system user information is established and maintained. The user is managed, logs of user login and operation are recorded, and the logs can be inquired, so that convenience in inquiry is guaranteed, and system safety is guaranteed.
17. The saving and backup functions are as follows: the test data and related files should be preserved and backed up, and the original records and certificates (reports) can be preserved for more than 7 years.
Claims (9)
1. The utility model provides a low carbon intelligent instrument cleaning system which characterized in that includes: the device comprises a water tank, a diesel tank, a cleaning agent tank, a waste liquid transfer tank, a chemical pump, an ultrasonic cleaning device, a hydraulic expansion bend, a cleaning pipeline, a separation and purification device and an intelligent control unit; the water tank, the diesel tank and the cleaning agent tank are respectively connected with an inlet end of a chemical pump through pipelines, an outlet end of the chemical pump is connected with an inlet end of a cleaning pipeline through a pipeline, the instrument is installed on the cleaning pipeline and is clamped and fixed through a hydraulic expansion piece, and a pair of probes of the ultrasonic cleaning device are respectively installed on the cleaning pipelines at the front end and the rear end of the instrument; the outlet end of the cleaning pipeline is respectively connected with the inlet of the water tank, the inlet of the diesel tank, the inlet of the cleaning agent tank and the inlet of the waste liquid transfer tank through pipelines, the outlet of the waste liquid transfer tank is connected with a separation and purification device through pipelines, the separation and purification device is respectively connected with the water tank and the diesel tank, the separated diesel oil is returned to the diesel tank, and the purified water is returned to the water tank; all be equipped with the solenoid valve on the pipeline that water tank, diesel tank and cleaner case and chemical pump are connected, all be equipped with the solenoid valve on the pipeline of water tank, diesel tank, cleaner case and waste liquid transfer case and washing pipe connection, be equipped with velocity of flow governing valve and density changer at the exit end that washs the pipeline, the different cleaning medium cleaning instrument of on-off state control chemical pump extraction that intelligent control unit passes through the corresponding solenoid valve of control, intelligent control unit is according to the opening size of the numerical control velocity of flow governing valve of density changer and the on-off state of each solenoid valve.
2. The low-carbon intelligent instrument cleaning system according to claim 1, wherein the cleaning system is further provided with a temperature control unit, the temperature control unit comprises a heating pipe and a temperature controller, the temperature controller is respectively connected with the intelligent control unit and the heating pipe, the heating pipe is arranged in the water tank, and an insulating layer is arranged outside the water tank.
3. The low-carbon intelligent instrument cleaning system as claimed in claim 1, wherein the separation and purification device comprises an oil-water separation device and a water purification device, the outlet of the waste liquid transfer tank is arranged at the bottom of the waste liquid transfer tank and is connected with the inlet of the oil-water separation device through a pipeline, the separated diesel oil returns to the diesel oil tank through the outlet of the oil-water separation device, and the separated water enters the water purification device and is purified and then returns to the water tank through a pipeline.
4. The low-carbon intelligent instrument cleaning system of claim 1, wherein a sweep inlet valve and a drain valve are arranged on the cleaning pipeline, and the intelligent control unit controls the sweep inlet valve and the drain valve to be opened to drain residual liquid in the cleaning pipeline.
5. The low-carbon intelligent instrument cleaning system of claim 1, wherein a flow meter, a temperature transmitter and a pressure transmitter are arranged on a pipeline connecting the chemical pump and the cleaning pipeline, and the flow meter is connected with the intelligent control unit.
6. The low-carbon intelligent instrument cleaning system of claim 1, wherein the bottoms of the water tank, the diesel tank and the cleaning agent tank are provided with sewage outlets, are provided with a sewage valve, and are provided with a temperature transmitter, a liquid level transmitter and a density transmitter; the waste liquid transfer box is provided with an air inlet and an air outlet, and a temperature transmitter and a density transmitter are arranged in the waste liquid transfer box.
7. The low-carbon intelligent instrument cleaning system of claim 1, wherein the cleaning system is provided with a frequency converter, the intelligent control unit controls the start, stop and speed of the chemical pump through the frequency adjustment of the frequency converter, and a filter is arranged in the frequency converter to eliminate the interference of the frequency converter to the outside.
8. The low-carbon intelligent instrument cleaning system of claim 1, wherein the cleaning system is provided with a plurality of cleaning pipelines, and instruments with different calibers are clamped and fixed on the corresponding cleaning pipelines through hydraulic retractors.
9. The low-carbon intelligent instrument cleaning system according to any one of claims 1 to 8, wherein the intelligent control unit comprises an upper computer and a lower computer which are connected with each other, and the lower computer comprises: the system comprises a PLC controller, an A/D module, an I/O module, a D/A module and a power supply module; the power supply module supplies power to other modules of the lower computer;
the A/D module performs AD conversion on analog signals collected by the temperature transmitter, the pressure transmitter, the liquid level transmitter and the density transmitter and then sends the analog signals to the upper computer through a 232 interface, and the PLC converts signals collected by the current meter into pulse signals and then sends the pulse signals to the upper computer through the 232 interface;
the upper computer outputs a control signal according to the numerical value of the density transmitter, and the D/A module converts the control signal output by the upper computer into an analog signal and then controls the opening of the flow rate regulating valve and the frequency converter; the I/O module converts a control signal output by the upper computer into a switching signal and then controls the switching state of each electromagnetic valve so as to control the cleaning process; and the upper computer monitors the state of the cleaning system according to signals collected by the temperature transmitters, the pressure transmitters, the liquid level transmitters and the density transmitter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210085685.9A CN114260264A (en) | 2022-01-25 | 2022-01-25 | Low-carbon intelligent instrument cleaning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210085685.9A CN114260264A (en) | 2022-01-25 | 2022-01-25 | Low-carbon intelligent instrument cleaning system |
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