Disclosure of Invention
Based on the problems existing in the background technology, the technical scheme of the invention provides a safe mistake-proofing liquid adding device with an automatic identification system, which comprises: the device comprises a power supply component, a communication component, a display/operation panel, a power component, a sensing component, a liquid feeding conveying component, a control component and a box body; the power supply unit includes a power supply unit; the communication component comprises a data transmission CAN bus, and the CAN bus is connected with the chemical generation equipment; the display/operation panel is arranged on the outer side of the box body and comprises liquid level information indicator lamps of at least two chemical liquid storage units in the chemical generation equipment, a data display screen, a manual execution button and an alarm device; the power part comprises a motor and a pump head, and is connected with the liquid feeding conveying part; the liquid feeding conveying part mainly comprises at least two conveying pipelines of chemical liquid, and one end of each conveying pipeline comprises a mechanical pipeline joint; one end of the conveying pipeline is connected with the sensing part and the stock solution barrel, and the other end of the conveying pipeline is connected with a corresponding chemical liquid storage unit in the chemical generation equipment through a mechanical pipeline joint; the control part is mainly an integrated circuit containing an MCU and is connected with the power supply part, the communication part, the display/operation panel, the power part and the sensing part.
Preferably, the liquid feeding conveying component mainly comprises a liquid A conveying pipeline and a liquid B conveying pipeline; the liquid A conveying pipeline comprises a male joint and a liquid A hole connecting unit, the male joint mainly comprises a protruding part, an annular groove is formed in the protruding part, a sealing ring is installed in the annular groove, the liquid A conveying pipeline is fixedly connected with the male joint, the male joint is in unique matching and tight connection with the liquid A hole connecting unit, and the liquid A hole connecting unit is fixedly connected with a liquid inlet of a liquid A storage unit in the chemical engineering generation equipment; liquid B conveying pipeline contains female joint and B liquid hub connection unit, is equipped with the annular groove on the female joint inner wall along the circumferencial direction, and the annular groove is embedded to have the sealing ring, and liquid B conveying pipeline and female joint fixed connection, female joint and B liquid hub connection unit carry out only matching zonulae occludens, the liquid inlet fixed connection of B liquid storage unit in liquid B hub connection unit and the chemical industry generation equipment.
Preferably, the fixed connection is one of welding, riveting or bonding.
Preferably, the joint of the male joint of the liquid A conveying pipeline and the liquid A hole connecting unit is fixed by a buckle, and the joint of the female joint of the liquid B conveying pipeline and the liquid B shaft connecting unit is fixed by a buckle.
Preferably, the power supply unit adopts one of an internal power supply or an external power supply connected through a power supply aviation plug.
Preferably, the pump head is a peristaltic pump head.
Preferably, the sensing component is a pH sensor.
The invention also provides an identification method of the safe wrong liquid adding prevention equipment with the automatic identification system, which is used for the safe wrong liquid adding prevention equipment with the automatic identification system, and comprises the following steps:
step 1: the method comprises the steps that an electrified safe mistake-proofing liquid adding device with an automatic identification system is connected with a chemical generation device and a stock solution barrel through a communication component, a liquid adding conveying component and a sensing component, a data transmission CAN bus mainly obtains unique identification information of the chemical generation device, liquid level information of a chemical solution storage unit and physicochemical information of chemical solution in the storage unit, the information is transmitted to a control component, the control component identifies and pairs the liquid adding device and the chemical generation device, and if the two are not matched, the liquid adding device is powered off;
step 2: and after the liquid adding equipment is successfully matched with the chemical generation equipment, the display/operation panel displays the liquid level information and the sensing part data of the chemical liquid storage unit in the chemical generation equipment. The control component analyzes and identifies whether the data of the sensing component is matched with an expected value, and if not, the alarm device is started; if the liquid level information is matched with the liquid level information, an operator clicks a manual execution button of the display/operation panel to add liquid, the control component identifies whether the liquid level information is a low liquid level, and if the liquid level information is not the low liquid level, the liquid adding equipment does not operate;
and step 3: the data of the sensing part is matched with an expected value, the liquid level information is a low liquid level, no alarm prompt is given, the liquid adding equipment normally operates, if the liquid level of the storage unit reaches a target value, the control part receives and identifies the liquid level information, an instruction is sent to the power part, and the liquid adding equipment stops working; in the normal operation process of the liquid adding equipment, if special abnormal conditions are met, the manual execution button is clicked to stop, the control part sends a stop instruction to the power part after receiving the data, and the liquid adding equipment is interrupted to operate.
Preferably, in step 2, the expected value is a set value of the control part for the pH value ranges of the liquid a and the liquid B or the pH value of the chemical liquid agent in the storage unit of the chemical production equipment.
Preferably, in step 3, in the normal operation process of the liquid adding equipment, if the liquid level reaches a target value, the control part receives and identifies liquid level information, sends an instruction to the power part, stops the liquid adding action of the liquid adding equipment, executes the reverse pumping action, and returns the residual chemical liquid in the liquid adding conveying part to the raw liquid barrel; and if the liquid adding equipment stops working, the residual chemical liquid exists in the pipeline, the manual execution button is clicked to perform reverse pumping until the pipeline does not contain the chemical liquid, and the manual execution button is clicked to stop the operation of the liquid adding equipment.
Compared with the prior art, the invention has the following beneficial technical effects: according to the liquid adding equipment provided by the invention, in the processes of pipeline assembly connection and liquid adding, on one hand, the liquid adding equipment is connected with the chemical generation equipment in a one-to-one correspondence manner, so that the access of unauthorized chemical generation equipment is prevented, the effective management of the liquid adding equipment is ensured, and the safe and stable operation of the chemical generation equipment is ensured; on the other hand, the chemical liquid is prevented from being added into a wrong storage unit of the chemical generation equipment due to human errors, reaction runaway of the chemical generation equipment and generation of dangerous chemical byproducts are avoided, safety accidents are effectively avoided, normal operation and service life of the equipment are maintained, the quality of generated products is ensured, potential safety hazards in a working environment are solved, and production safety is improved; meanwhile, the liquid adding equipment is simple to operate, rapid in identification and stable in system operation, liquid adding automation can be achieved, and working efficiency is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. Therefore, the scope of the invention is not limited by the specific embodiments disclosed below.
Referring to fig. 1-5, the safety mistake-proofing liquid adding device with an automatic identification system according to the embodiment of the present invention includes a power supply unit, a communication unit, a display/operation panel 1, a power unit 2, a sensing unit 3 (shown as a pH sensor in fig. 1), a liquid adding conveying unit 4, a control unit (not shown), and a box 5.
External power supply unit is selected for use to the electrical power unit, is connected with chemical industry generation equipment 6 through the circular connector promptly, is provided electric power for liquid feeding equipment by chemical industry generation equipment 6.
The communication component adopts a data transmission CAN bus 7 to connect the liquid adding equipment with the chemical generation equipment 6, and is mainly used for acquiring the unique identification information of the chemical generation equipment 6, the liquid level information of the chemical liquid storage units 61 and 62 thereof, the pH value information of A, B chemical liquid in the storage units 61 and 62, the software and hardware version information, the positioning information and other basic information.
The display/operation panel 1 is arranged on the outer side of the box body 5, and comprises two liquid level information indicator lamps 11 of A, B chemical liquid storage units, namely a high liquid level and a low liquid level of liquid A and a high liquid level and a low liquid level of liquid B, a sensing part data display screen 12, a manual execution button 13, liquid adding, back pumping and stopping and an alarm device (not shown).
The power part 2 comprises A, B two peristaltic pump heads 21, A, B two motors 22 and provides power support for the liquid feeding and conveying part 4.
The sensing part 3 (i.e., pH sensor) is used to detect pH data of the a liquid and the B liquid stored in the stock solution tank 8.
The liquid feeding conveying component 4 mainly comprises a liquid A conveying pipeline 41 and a liquid B conveying pipeline 42; the liquid a conveying pipeline 41 comprises a male joint 411 and a liquid a hole connecting unit 412, the male joint 411 is mainly composed of a protrusion 4111, the protrusion 4111 is provided with an annular groove 4112, a sealing ring 4113 is installed in the annular groove 4112, the liquid a conveying pipeline 41 is fixedly bonded with the male joint 411, the male joint 411 and the liquid a hole connecting unit 412 are in unique matching and tight connection, and the liquid a hole connecting unit 412 is fixedly connected with a liquid inlet of a liquid a storage unit 61 in the chemical engineering generating equipment 6; the liquid B conveying pipeline 42 comprises a female joint 421 and a liquid B shaft connecting unit 422, an annular groove 4211 is formed in the inner wall of the female joint 421 in the circumferential direction, a sealing ring 4212 is embedded in the annular groove 4211, the liquid B conveying pipeline 42 is fixedly bonded with the female joint 421, the female joint 421 and the liquid B shaft connecting unit 422 are in unique matching and tight connection, and the liquid B shaft connecting unit 422 is fixedly connected with a liquid inlet of a liquid B storage unit 62 in the chemical production equipment 6. The liquid a conveying pipeline 41 and the liquid B conveying pipeline 42 can be made of rubber hoses, and the sealing rings 4113 and 4212 are made of elastic and corrosion-resistant materials.
One end of each of the delivery pipes 41 and 42 is connected to the sensing component 3 (i.e., pH sensor) and the raw liquid barrel 8, and the other end is connected to the liquid inlets of the liquid a storage unit 61 and the liquid B storage unit 62 of the chemical generation device 6 through the pipe joints 411 and 421 and the connection units 412 and 422.
The control part is an integrated circuit containing a Micro Control Unit (MCU), is connected with the display/operation panel 1, the power part 2, the sensing part 3 and the chemical generation equipment 6, can acquire and identify the unique identifier of the chemical generation equipment 6, the liquid level information of the chemical liquid storage units 61 and 62, the pH value information of the liquid A and the liquid B in the storage units, the pH value data of the liquid A and the liquid B stored in the raw material barrel, the manual operation information of the manual execution button 13 and the like, and sends a series of operation instructions to the power part 2 through a control logic.
As CAN be seen from fig. 1 to 5 and the above description, the safe mistake-proofing liquid adding device with an automatic identification system according to the present invention receives and identifies information such as unique identification information, pH data, and the like of the chemical generation device 6 of the data transmission CAN bus 7 and the sensing component 3 (i.e., the pH sensor) through the control component, and if the unique identification information of the chemical generation device 6 is not matched with the liquid adding device, the liquid adding device is powered off, thereby ensuring that the liquid adding device CAN only be connected with a specific chemical generation device, but cannot be connected with other types of chemical generation devices; if the sensing data is not matched with the expected value, an alarm device of the liquid adding equipment is started to remind an operator to check and correct errors, so that the liquid A conveying pipeline 41 in the liquid adding equipment can only be connected with a stock solution barrel stored with the liquid A to convey the liquid chemical agent A, and the liquid B conveying pipeline 42 can only be connected with the stock solution barrel stored with the liquid B to convey the liquid chemical agent B; through the male joint 411 and the liquid A hole connecting unit 412 of the liquid A conveying pipeline 41 and the female joint 421 and the liquid B shaft connecting unit 422 of the liquid B conveying pipeline 42 in the liquid adding equipment, the liquid A conveying pipeline 41 can only be connected with a liquid inlet of the liquid A storage unit 61 of the specific chemical engineering generation equipment 6 but cannot be connected with a liquid inlet of the liquid B storage unit 62, and the liquid B conveying pipeline 41 can only be connected with a liquid inlet of the liquid B storage unit 62 but cannot be connected with a liquid inlet of the liquid A storage unit 61. Finally, the liquid adding equipment is correctly connected with the specific chemical production equipment, the corresponding chemical liquid storage unit and the corresponding stock solution barrel.
Further, as shown in fig. 6 and 7, a clamping groove 413 is formed in the joint of the male joint 411 of the liquid a conveying pipeline 41 and the liquid a hole connecting unit 412 and used for installing a spring buckle 414, the fastening performance of connection can be further guaranteed by the fixing structure, the conveying pipeline is convenient to assemble and disassemble, rotation of the male joint 411 and the liquid a hole connecting unit 412 is achieved, torsion generated in the assembling and using processes of the conveying pipeline is eliminated, the conveying pipeline is prevented from being distorted and liquid leakage is prevented from loosening at the joint, potential safety hazards of liquid leakage are solved, liquid adding work is smoothly conducted, and the use safety of equipment is guaranteed. The same structure is adopted for the connection part of the female joint 421 of the liquid B conveying pipeline 42 and the liquid B shaft connection unit 422.
Furthermore, the connection between the male connector 411 of the liquid a conveying pipeline 41 and the liquid a hole connection unit 412 and the connection between the female connector 421 of the liquid B conveying pipeline 42 and the liquid B shaft connection unit 422 can also adopt a threaded structure, so as to ensure the tightness of the connection.
Furthermore, the end portions of the protrusion 4111 of the male joint 411 and the liquid B shaft connecting unit 422 of the liquid a conveying pipeline 41 are provided with a tapered platform, so that the male joint 411 and the liquid a hole connecting unit 412, and the liquid B shaft connecting unit 422 and the female joint 421 are smoothly inserted, the sealing ring structures of the joints are not damaged, the effective connection between the liquid adding pipelines is realized, and the service life of the conveying pipeline is prolonged.
Further, the fixed connection mode of the liquid A conveying pipeline 41 and the male joint 411 and the fixed connection mode of the liquid B conveying pipeline 42 and the female joint 421 can also adopt detachable connection, such as threaded connection, sleeve type connection and the like, and a chain is arranged between the devices which are connected with each other or different colors are set, so that manual identification is facilitated, and when the conveying pipeline is aged and replaced conveniently, correct assembly of the liquid A conveying pipeline 41 and the male joint 411, and correct assembly of the liquid B conveying pipeline 42 and the female joint 421 are ensured.
Furthermore, the MCU model in the control component selects STM32F103 produced by ST company, the integrated circuit is provided with 12 DI, 20 DO, 2 AI, 1 CAN port and 1 standard RS232 interface, the timer selects two paths, one of the two paths is used for timing or timing function during logic processing, each timing interrupt is set as a logic control minimum time slice, the other one is used for sending high-frequency pulse signals, the interval time is preferably 10-50us, on the premise of controlling the running of the motor and the pump head, the other tasks are not influenced, and the stable running of the control component is ensured.
Furthermore, the handrail is installed on the upper portion of liquid feeding equipment box, and the pulley is installed to the bottom, makes things convenient for the removal of liquid feeding equipment.
Referring to fig. 8, the method for identifying a safe wrong-filling-proof device with an automatic identification system according to an embodiment of the present invention includes the following steps:
step 1: the method comprises the following steps that liquid adding equipment is connected with chemical generation equipment 6 and an A liquid/B liquid stock solution barrel 8 through a data transmission CAN bus 7, a sensing part 3 (namely a pH sensor) and a liquid adding conveying part 4, the data transmission CAN bus 7 acquires the unique identification information of the chemical generation equipment 6 and the liquid level information of chemical liquid storage units 61 and 62, the physical and chemical information of the chemical liquid in the storage units, software and hardware version information, positioning information and other basic information, data are transmitted to a control part, the integrated circuit containing an MCU identifies and pairs the liquid adding equipment and the chemical generation equipment 6, and if the two are not matched, the liquid adding equipment is powered off;
step 2: after the liquid adding device is successfully matched with the chemical production device 6, the display/operation panel 1 displays the liquid level information of the chemical agent storage units 61 and 62 in the chemical production device and the pH value data detected by the sensing component 3 (namely, a pH sensor). The control component analyzes and identifies whether the pH value data is matched with an expected value, and if not, the alarm device is started; if the liquid level information is matched with the liquid level information, an operator clicks a manual execution button 13 of the display/operation panel 1 to add liquid, the control component identifies whether the liquid level information is a low liquid level, and if the liquid level information is not the low liquid level, the liquid adding equipment does not operate;
and step 3: the pH value data detected by the sensing part 3 (namely a pH sensor) is matched with an expected value, the liquid level information is a low liquid level, no alarm prompt is given, the liquid adding equipment normally operates, if the liquid level of the storage unit 61 or 62 reaches a target value, the control part receives and identifies the liquid level information, an instruction is sent to the power part 2, and the conveying pipeline 41 or 42 of the liquid adding equipment stops adding liquid; in the normal operation process of the liquid adding equipment, if special abnormal conditions are met, the manual execution button 13 is clicked to stop, the control part sends a stop instruction to the power part 2 after receiving data, and the liquid adding equipment stops operating.
Further, in step 2, the expected value is a set value of the control part for the pH value ranges of the liquid a and the liquid B or the pH value of the chemical liquid in the storage unit of the chemical production equipment.
Further, in the step 3, in the normal operation process of the liquid adding equipment, if the liquid level reaches a target value, the control part receives and identifies liquid level information, sends an instruction to the power part 2, stops the liquid adding action of the liquid adding equipment, executes the back pumping action, and sends the residual chemical liquid in the liquid adding conveying part back to the stock solution barrel 8; and if the residual chemical liquid exists in the pipeline after the liquid adding equipment stops working, clicking the manual execution button 13 to perform reverse pumping until the pipeline does not contain the chemical liquid, and clicking the manual execution button 13 again to stop the operation of the liquid adding equipment.
Furthermore, the liquid adding device can be used in different chemical fields, such as a device for generating subacid hypochlorous acid water, the liquid A and the liquid B are respectively a sodium hypochlorite solution and a hydrochloric acid solution, and the control part sets the pH value range of the liquid A to be more than 10 and the pH value range of the liquid B to be less than 1. If the sensing component 3 (namely the pH sensor) detects that the pH value of the liquid A in the stock solution barrel is below 1, the control component analyzes and identifies the pH value, the conveying pipeline 41 of the liquid feeding conveying component 4 is judged to be connected with the stock solution barrel wrongly, and the alarm device is started to remind an operator to check and correct the mistake.
Further, the control component obtains the pH value of the chemical liquid agent of the storage units 61 and 62 of the chemical production equipment from the data transmission CAN bus 7, compares and identifies the pH value data of the A liquid and the B liquid in the stock solution barrel detected by the sensing component 3 (namely, a pH sensor), and if the pH value data are not matched, the alarm device is started to remind an operator to check and correct errors.
According to the liquid feeding device, through data information identification among the communication component, the sensing component and the control component and a mechanical pipeline joint structure, normal communication connection between the liquid feeding device and the specific chemical generation device can be guaranteed, the liquid A conveying pipeline of the liquid feeding device is guaranteed to be connected with the stock solution barrel for storing the liquid A and the liquid A storage unit of the specific chemical generation device in a one-to-one correspondence mode, and the liquid B conveying pipeline is connected with the stock solution barrel for storing the liquid B and the liquid B storage unit of the specific chemical generation device in a one-to-one correspondence mode.
According to the liquid adding equipment provided by the invention, in the processes of pipeline assembly connection and liquid adding, on one hand, the liquid adding equipment is connected with the chemical generation equipment in a one-to-one correspondence manner, so that the access of unauthorized chemical generation equipment is prevented, the effective management of the liquid adding equipment is ensured, and the safe and stable operation of the chemical generation equipment is ensured; on the other hand, the chemical liquid is prevented from being added into a wrong storage unit of the chemical generation equipment due to human errors, reaction runaway of the chemical generation equipment and generation of dangerous chemical byproducts are avoided, safety accidents are effectively avoided, normal operation and service life of the equipment are maintained, the quality of generated products is ensured, potential safety hazards in a working environment are solved, and production safety is improved; meanwhile, the liquid adding equipment is simple to operate, rapid in identification and stable in system operation, liquid adding automation can be achieved, and working efficiency is improved.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications, equivalents and changes may occur to those skilled in the art without departing from the inventive concepts herein. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.