Solution batching device

Abstract

The utility model discloses a solution batching device which comprises two water phase preparation tanks, a computer and a PLC (Programmable Logic Controller), the water phase preparation tanks are communicated with water conveying pipelines, one ends, close to the water phase preparation tanks, of the water conveying pipelines are provided with first pneumatic ball valves, the intersection of the two water conveying pipelines is communicated with a first pneumatic three-way valve, and the first pneumatic three-way valve is communicated with a second pneumatic three-way valve. The first pneumatic three-way valve is communicated with a water injection pipeline, the two water phase preparation tanks are both communicated with material conveying pipelines, and one ends, close to the water phase preparation tanks, of the material conveying pipelines are both provided with second pneumatic ball valves. The device is simple in structure and convenient to operate, prevents the situation that the quality safety of products is influenced by unqualified water-phase solution caused by human errors, reduces the workload and working time, prevents all risks caused by manual density measurement, and obviously improves the working efficiency and the accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of solution batching, in particular to a solution batching device. Background Technique

[0002] Solution batching refers to the process of dissolving one or more solutes in a solvent in a certain proportion to prepare a solution with specific concentration and properties. This process has extremely important applications in many fields such as chemistry, biology, medicine, and food.

[0003] Solution batching is an important technology in modern industry, scientific research, and medical fields. Currently, manual participation is required in aqueous phase batching and detection. There are certain errors in manual addition of raw materials and measurement, which makes it difficult to guarantee the accuracy of the aqueous phase solution ratio and poses certain potential hazards to production. Content of the Utility Model

[0004] The purpose of the utility model is to provide a solution batching device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A solution batching device, including two aqueous phase preparation tanks, a computer, and a PLC controller. Water supply pipelines are connected to both of the aqueous phase preparation tanks. At one end of each water supply pipeline close to the aqueous phase preparation tank, a first pneumatic ball valve is provided. At the intersection of the two water supply pipelines, a first pneumatic three-way valve is connected. An injection pipeline is connected to the first pneumatic three-way valve. Feeding pipelines are connected to both of the aqueous phase preparation tanks. At one end of each feeding pipeline close to the aqueous phase preparation tank, a second pneumatic ball valve is provided. At the intersection of the two feeding pipelines, a second pneumatic three-way valve is connected. A material injection pipeline is connected to the second pneumatic three-way valve;

[0006] A turning magnetic pump is provided on the material injection pipeline. Mass flow meters are fixedly installed on both the injection pipeline and the material injection pipeline. Refractometer sensors are installed on both of the aqueous phase preparation tanks. The PLC controller is electrically connected to a refractometer display. A safety isolation barrier is provided between the refractometer display and the refractometer sensor.

[0007] Preferably, first manual valves are provided at the middle positions of the water supply pipelines, and second manual valves are provided at the middle positions of the feeding pipelines.

[0008] Preferably, the mass flow meters are arranged at the front end positions of the first pneumatic three-way valve and the second pneumatic three-way valve.

[0009] Preferably, the computer is communicatively connected to the PLC controller, the PLC controller is communicatively connected to the refractometer display, and the refractometer display is communicatively connected to the refractometer sensor.

[0010] Preferably, the PLC controller is electrically connected to the first pneumatic three-way valve, the first pneumatic ball valve, the second pneumatic three-way valve, the second pneumatic ball valve, and the turnover magnetic pump.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The addition of the proportioned raw materials is automatically added through computer counting, reducing manual intervention and errors, preventing the unqualified water-phase solution caused by human errors and affecting the product quality and safety. At the same time, the workload and working time are reduced, all risks brought by manual density measurement are prevented, and the work efficiency and accuracy are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present utility model.

[0013] In the figure: 1, water-phase preparation tank; 2, computer; 3, PLC controller; 4, water delivery pipeline; 5, first pneumatic ball valve; 6, first pneumatic three-way valve; 7, water injection pipeline; 8, material delivery pipeline; 9, second pneumatic ball valve; 10, second pneumatic three-way valve; 11, material injection pipeline; 12, turnover magnetic pump; 13, mass flowmeter; 14, refractometer sensor; 15, refractometer display; 16, safety isolation barrier; 17, first manual valve; 18, second manual valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] Please refer to Figure 1 , the present utility model provides a technical solution: a solution batching device, including two water-phase preparation tanks 1, a computer 2, and a PLC controller 3. The water-phase preparation tanks 1 are each connected to a water delivery pipeline 4. One end of the water delivery pipeline 4 close to the water-phase preparation tank 1 is provided with a first pneumatic ball valve 5. The intersection of the two water delivery pipelines 4 is connected to a first pneumatic three-way valve 6. The first pneumatic three-way valve 6 is connected to a water injection pipeline 7. Each of the two water-phase preparation tanks 1 is connected to a material delivery pipeline 8. One end of the material delivery pipeline 8 close to the water-phase preparation tank 1 is provided with a second pneumatic ball valve 9. The intersection of the two material delivery pipelines 8 is connected to a second pneumatic three-way valve 10. The second pneumatic three-way valve 10 is connected to a material injection pipeline 11.

[0016] A turnover magnetic pump 12 is provided on the charging pipeline 11. Mass flow meters 13 are fixedly installed on both the water injection pipeline 7 and the charging pipeline 11. Refractometer sensors 14 are installed on the aqueous phase preparation tank 1. The PLC controller 3 is electrically connected to a refractometer display 15. A safety isolation barrier 16 is provided between the refractometer display 15 and the refractometer sensor 14. The safety isolation barrier 16 provided between the refractometer sensor 14 and the refractometer display 15 can prevent high voltage from entering the site, meeting the requirements of protecting equipment and explosion protection in the hazardous area. At the same time, both the on-site display panel and the refractometer sensor 14 are explosion-proof products. Also, the connection wires, communication lines, and power supply lines between each point on-site are all laid using cable trays or copper pipes.

[0017] First manual valves 17 are provided at the middle positions of the water conveyance pipelines 4, and second manual valves 18 are provided at the middle positions of the material conveyance pipelines 8. During production, the first manual valve and the second manual valve leading to one of the aqueous phase preparation tanks are normally open, while the manual valves of the other preparation tank are normally closed. The mass flow meter 13 is arranged at the front end position between the first pneumatic three-way valve 6 and the second pneumatic three-way valve 10, facilitating the precise control of the water inlet and feed volume of each preparation tank. The computer 2 is communicatively connected to the PLC controller 3, the PLC controller 3 is communicatively connected to the refractometer display 15, the refractometer display 15 is communicatively connected to the refractometer sensor 14, the mass flow meter 13 is communicatively connected to the PLC controller 3, and the PLC controller 3 is electrically connected to the first pneumatic three-way valve 6, the first pneumatic ball valve 5, the second pneumatic three-way valve 10, the second pneumatic ball valve 9, and the turnover magnetic pump 12, facilitating data transmission and equipment drive.

[0018] Specifically, when using the utility model, after being powered on, turn on the computer 2, start the batching operation program, and after inputting the concentration target value, send corresponding instructions through the PLC controller 3 to automatically open the corresponding inlet of the pneumatic first pneumatic three-way valve 6, and at the same time, the connected first pneumatic ball valve 5 is also automatically opened to realize the filling of process water into the target preparation tank. The process water passes through the mass flowmeter 13, the first pneumatic three-way valve 6, and the first pneumatic ball valve 5 and enters the aqueous phase preparation tank 1. The on-site refractometer sensor 14 collects the internal data of the aqueous phase preparation tank 1, and the collected data is transmitted to the refractometer display 15 through the safety isolation barrier 16. The refractometer display 15 transmits the on-site data to the PLC controller 3 according to the 4-20 mA standard current signal. The PLC controller 3 exchanges and processes data with the connected computer 2, and uses the corresponding batching operation program on the computer 2 to set the production batching data and parameters to control the PLC controller 3 to issue relevant operation instructions. The first pneumatic three-way valve 6 and the first pneumatic ball valve 5 belong to the terminal mechanism of the PLC controller 3 and are responsible for the on-off of the process water. The mass flowmeter 13 is connected to the PLC controller 3 and is responsible for data collection and feedback. When the concentration detection value in the aqueous phase preparation tank 1 reaches the set value or is infinitely close, the PLC controller 3 issues an instruction to automatically close the first pneumatic three-way valve 6 and the first pneumatic ball valve 5, so that the filling of the process water automatically stops. At this time, the operator can view the current value on the display of the refractometer sensor 14 for easy reference and debugging. If the displayed value is infinitely close to the set value, the batching is completed.

[0019] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Solution batching device, characterized in that: It includes two aqueous phase preparation tanks (1), a computer (2) and a PLC controller (3). Water supply pipes (4) are connected to the aqueous phase preparation tanks (1). At one end of each water supply pipe (4) close to the aqueous phase preparation tank (1), a first pneumatic ball valve (5) is provided. At the intersection of the two water supply pipes (4), a first pneumatic three-way valve (6) is connected. An injection water pipe (7) is connected to the first pneumatic three-way valve (6). Feeding pipes (8) are connected to the two aqueous phase preparation tanks (1). At one end of each feeding pipe (8) close to the aqueous phase preparation tank (1), a second pneumatic ball valve (9) is provided. At the intersection of the two feeding pipes (8), a second pneumatic three-way valve (10) is connected. A feeding pipe (11) is connected to the second pneumatic three-way valve (10). A turnover magnetic pump (12) is provided on the feeding pipe (11). Mass flow meters (13) are fixedly installed on both the injection water pipe (7) and the feeding pipe (11). Refractometer sensors (14) are installed on the aqueous phase preparation tanks (1). The PLC controller (3) is electrically connected to a refractometer display (15). A safety isolation barrier (16) is provided between the refractometer display (15) and the refractometer sensor (14).

2. The solution batching device according to claim 1, wherein: First manual valves (17) are provided at the middle positions of the water supply pipes (4). Second manual valves (18) are provided at the middle positions of the feeding pipes (8).

3. The solution batching device according to claim 1, characterized in that: The mass flow meters (13) are arranged at the front end positions of the first pneumatic three-way valve (6) and the second pneumatic three-way valve (10).

4. The solution batching device according to claim 1, wherein: The computer (2) is communicatively connected to the PLC controller (3). The PLC controller (3) is communicatively connected to the refractometer display (15). The refractometer display (15) is communicatively connected to the refractometer sensor (14). The mass flow meter (13) is communicatively connected to the PLC controller (3).

5. The solution batching device according to claim 1, wherein: The PLC controller (3) is electrically connected to the first pneumatic three-way valve (6), the first pneumatic ball valve (5), the second pneumatic three-way valve (10), the second pneumatic ball valve (9) and the turnover magnetic pump (12).

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