CN218724411U - Liquid accurate metering and control device - Google Patents
Liquid accurate metering and control device Download PDFInfo
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- CN218724411U CN218724411U CN202222627170.5U CN202222627170U CN218724411U CN 218724411 U CN218724411 U CN 218724411U CN 202222627170 U CN202222627170 U CN 202222627170U CN 218724411 U CN218724411 U CN 218724411U
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Abstract
The utility model discloses a liquid accurate metering and controlling device, belonging to the technical field of glass substrate cleaning devices, comprising a liquid supply unit and a circulating water tank, wherein the liquid supply unit is communicated with the circulating water tank through a first pipeline; the temporary storage water tank is communicated with the first pipeline; the first pipeline is provided with a constant delivery pump, and the constant delivery pump can convey liquid in the first pipeline to the temporary storage water tank. The utility model discloses can prevent that the washing liquid from being detained for a long time in the pipeline and causing the pipeline to corrode, prolong the life of equipment.
Description
Technical Field
The utility model relates to a glass substrate belt cleaning device technical field, specifically speaking relates to an accurate measurement of liquid and controlling means.
Background
The glass substrate for liquid crystal is a member supplied to the liquid crystal display device in a form called mother glass, and the size of the mother glass depends on the size of a plurality of glass substrates required for one liquid crystal display device. The size of the mother glass is conventionally expressed by "generation", for example, the size of the 6 th generation mother glass is 1500mm × 1850mm. The mother glass is obtained by cutting a glass plate shaped into a plate shape into a specific size. In addition, in order to remove stains, cutting chips, and the like generated when the glass plate is cut, it is necessary to clean the glass substrate for liquid crystal, which is mother glass.
In the process of cleaning a TFT-LCD (liquid crystal display) glass substrate, liquid is generally sprayed on the surface of the liquid crystal glass substrate to achieve the purpose of cleaning. In order to improve the cleaning ability of the liquid and reduce the surface defects of the glass substrate, a certain amount of cleaning liquid is usually added into the liquid. The concentration of washing liquid has decided the cleaning performance at to a great extent, and current automatic draw-out device of liquid has the not enough problem of accuracy, easily causes the fluctuation of washing liquid concentration, and the washing liquid is detained for a long time and is easily caused the pipeline to corrode in the pipeline, has the hidden danger in the aspect of product quality and equipment.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The utility model discloses there is the washing liquid to current liquid automatic draw-out device and is detained the problem that easily causes the pipeline corruption in the pipeline for a long time, provides a liquid accurate measurement and controlling means, can avoid the problem that the washing liquid is detained in the pipeline for a long time.
2. Technical scheme
In order to achieve the purpose, the utility model provides a liquid accurate metering and control device, which comprises a liquid supply unit and a circulating water tank, wherein the liquid supply unit is communicated with the circulating water tank through a first pipeline; the temporary storage water tank is communicated with the first pipeline; the first pipeline is provided with a constant delivery pump, and the constant delivery pump can convey liquid in the first pipeline to the temporary storage water tank.
Furthermore, the temporary storage water tank is communicated with the first pipeline through a second pipeline, and a switch valve is arranged at the joint of the second pipeline and the first pipeline.
Further, the fixed displacement pump is arranged on a first pipeline between the circulating water tank and the temporary storage water tank.
Furthermore, a flow control valve is arranged on a first pipeline between the liquid supply unit and the temporary storage water tank.
Further, the liquid supply unit comprises a liquid supply tank body and a water pump, and the water pump is used for pumping out liquid in the liquid supply tank body and inputting the liquid into the circulating water tank or the temporary storage water tank.
Further, the bottom of the circulating water tank is provided with a conductivity meter.
Furthermore, the device also comprises a control unit, and the conductivity measuring meter is electrically connected with the control unit.
Furthermore, a stirring device is arranged in the circulating water tank.
Furthermore, the control unit is respectively and electrically connected with the liquid supply unit and the quantitative pump.
Further, the water pump is electrically connected with the control unit; the liquid supply tank body is provided with a liquid supplement port, and the liquid supplement port is provided with a sealing cover.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:
(1) The utility model discloses an accurate measurement of liquid and controlling means supplies the liquid unit can supply the washing liquid for circulating water tank, and the washing liquid gets into circulating water tank through first pipeline, can have remaining washing liquid in the first pipeline, and the constant delivery pump can be carried remaining washing liquid in the first pipeline to the water tank of keeping in, prevents that the washing liquid from being detained for a long time in the pipeline and causing the pipeline to corrode, has prolonged the life of equipment.
(2) The utility model discloses an accurate measurement of liquid and controlling means, switching valve set up in the junction of first pipeline and second pipeline, and when supplying the liquid unit and carry the washing liquid to circulation tank, switching valve can close, prevents that the washing liquid from getting into the water tank of keeping in. When the dosing pump conveys the residual liquid in the pipeline, the switch valve is opened, so that the liquid enters the temporary storage water tank. The constant delivery pump is located between circulation tank and the water tank of keeping in, is close to the terminal position of washing liquid flow direction, can be with more remaining liquid input to the water tank of keeping in. The flow control valve can control the flow rate of the cleaning liquid. The liquid supply unit comprises a liquid supply tank body and a water pump, and the water pump can pump out liquid in the liquid supply tank body and input the liquid into the water tank or the temporary storage water tank
(3) The utility model discloses a liquid accurate measurement and controlling means, circulating water tank's bottom is provided with the conductivity meter, can calculate the dosage of washing liquid in the circulating water tank through the conductivity measurement. The stirring device can uniformly stir the cleaning liquid in the circulating water tank, and is favorable for improving the accuracy of the conductivity measurement of the cleaning liquid in the circulating water tank by the conductivity measuring meter. The conductivity meter can transmit the data of the conductivity of the cleaning liquid in the circulating water tank to the control unit, the control unit monitors the concentration change of the cleaning liquid in real time through the conductivity meter, and when the dosage of the cleaning liquid needing to be supplemented in the circulating water tank is within the dosage range of the cleaning liquid in the temporary storage water tank, the cleaning liquid can be directly supplemented into the circulating water tank from the temporary storage water tank through the dosing pump. When the dosage that needs to be supplemented in the circulating water tank exceeds the dosage range of the temporary storage water tank, the control unit can control the water pump to supplement new cleaning liquid from the liquid supply unit to the circulating water tank, and accurate measurement and accurate control of the dosage of the cleaning liquid discharged into the circulating water tank are achieved.
Drawings
In the drawings, the size and the proportion do not represent the size and the proportion of an actual product. The figures are merely illustrative and certain unnecessary elements or features have been omitted for clarity.
Fig. 1 is a schematic structural diagram of a liquid precise metering and controlling device according to an embodiment of the present invention.
The reference numbers in the schematic drawings illustrate:
1. a liquid supply unit; 2. temporarily storing a water tank; 3. a constant delivery pump; 4. a circulating water tank; 5. a conductivity meter; 6. a first conduit; 7. a second conduit.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. What has been described herein is merely a preferred embodiment in accordance with the present invention, and those skilled in the art will appreciate that other ways of implementing the present invention on the basis of the preferred embodiment will also fall within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Examples
As shown in fig. 1, the present embodiment provides a liquid precise metering and controlling device, which includes a liquid supply unit 1, a temporary storage water tank 2, and a circulation water tank 4, wherein the liquid supply unit 1 is communicated with the circulation water tank 4 through a first pipeline 6, and the liquid supply unit 1 can supplement a cleaning liquid to the circulation water tank 4. The water tank 2 of keeping in communicates with first pipeline 6, is provided with constant delivery pump 3 on the first pipeline 6, and constant delivery pump 3 can carry the liquid in first pipeline 6 to the water tank 2 of keeping in, prevents that the washing liquid from being detained for a long time in the pipeline and causing the pipeline to corrode, has prolonged the life of equipment.
It should be noted that, as shown in fig. 1, the temporary storage water tank 2 is communicated with the first pipeline 6 through a second pipeline 7, and a switch valve is arranged at the joint of the second pipeline 7 and the first pipeline 6. The switch valve is arranged at the joint of the first pipeline 6 and the second pipeline 7, and can be closed when the liquid supply unit 1 conveys the cleaning liquid to the circulating water tank 4, so that the cleaning liquid is prevented from entering the temporary storage water tank 2. When the metering pump 3 is used for conveying the residual liquid in the pipeline, the switch valve is opened, so that the liquid enters the temporary storage water tank 2. The constant delivery pump 3 is located on the first pipeline 6 between the circulation water tank 4 and the temporary storage water tank 2, is close to the terminal position of the flowing direction of the cleaning liquid, and can input more residual liquid into the temporary storage water tank 2. A flow control valve is arranged on the first pipeline 6 between the liquid supply unit 1 and the temporary water storage tank 2, and can control the flowing speed of the cleaning liquid and the amount of the liquid flowing into the temporary water storage tank 2. The liquid supply unit 1 comprises a liquid supply tank body and a water pump, and the water pump is used for pumping out liquid in the liquid supply tank body and inputting the liquid into the circulating water tank 4 or the temporary storage water tank 2. The liquid supply tank body is provided with a liquid supplement port, cleaning liquid can be supplemented into the liquid supply tank body from the liquid supplement port, and the liquid supplement port is provided with a sealing cover which can seal the liquid supply tank body, so that the cleanness of the cleaning liquid in the liquid supply tank body is kept, and the cleaning liquid is prevented from being polluted by the outside.
Further, in order to control the concentration of the cleaning liquid, as shown in fig. 1, in the present embodiment, a conductivity meter 5 is provided at the bottom of the circulation tank 4, and the conductivity meter 5 can measure the concentration of the cleaning liquid in the circulation tank 4 by the conductivity of the cleaning liquid. The conductivity meter 5 is electrically connected with the control unit, the conductivity meter 5 transmits the measured data to the control unit, and the control unit calculates the dosage of the cleaning liquid in the circulating water tank 4 according to the data. Be provided with agitating unit in the circulation tank 4, agitating unit can be with the washing liquid stirring in the circulation tank 4, is favorable to improving the accuracy that the electric conductivity meter 5 measured the washing liquid electric conductivity in the circulation tank 4. The control unit is respectively electrically connected with the liquid supply unit 1 and the constant delivery pump 3. The water pump is electrically connected with the control unit. The control unit monitors the concentration change of the cleaning liquid in real time through the conductivity meter 5, and when the dosage of the cleaning liquid to be supplemented in the circulating water tank 4 is within the dosage range of the cleaning liquid in the temporary storage water tank 2, the cleaning liquid can be directly supplemented from the temporary storage water tank 2 to the circulating water tank 4 through the constant delivery pump 3. When the dosage needing to be supplemented in the circulating water tank 4 exceeds the dosage range of the temporary storage water tank 2, the control unit can control the water pump to supplement new cleaning liquid from the liquid supply unit 1 to the circulating water tank 4, and accurate metering and accurate control of the dosage of the cleaning liquid discharged into the circulating water tank 4 are achieved.
The working process is as follows: when the surface of the glass substrate needs to be cleaned, cleaning solution supply unit 1 pumps cleaning solution into circulation water tank 4, residual liquid still exists in the pipeline at the moment, constant delivery pump 3 pumps the residual liquid in the pipeline into temporary storage water tank 2, the raw solution is pumped into circulation water tank 4 and is fully stirred by a stirring device, conductivity meter 5 measures the conductivity of the mixed liquid at the moment, and the difference between the current value and the process set value is calculated by a control unit, so that the cleaning solution dosage needing to be replenished again is obtained. In the production process, as the production amount increases and the cleaning liquid runs off, the concentration in the circulation tank 4 gradually decreases. The control unit monitors the concentration change in real time through the conductivity meter 5, and when the dosage of the cleaning liquid to be supplemented in the circulating water tank 4 is within the dosage range of the temporary storage water tank 2, the dosage of the cleaning liquid to be supplemented can be directly extracted from the temporary storage water tank 2 into the circulating water tank 4 through the dosing pump 3. When the dosage of the cleaning liquid to be supplemented in the circulating water tank 4 exceeds the dosage range of the temporary storage water tank 2, new cleaning liquid needs to be supplemented into the circulating water tank 4 from the cleaning liquid supply unit 1, and accurate measurement and accurate control of the dosage of the cleaning liquid discharged into the circulating water tank 4 are achieved.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. The liquid precise metering and controlling device comprises a liquid supply unit (1) and a circulating water tank (4), wherein the liquid supply unit (1) is communicated with the circulating water tank (4) through a first pipeline (6); the device is characterized by further comprising a temporary storage water tank (2), wherein the temporary storage water tank (2) is communicated with the first pipeline (6); the first pipeline (6) is provided with a constant delivery pump (3), and the constant delivery pump (3) can convey liquid in the first pipeline (6) to the temporary storage water tank (2).
2. The precise metering and control device for liquid according to claim 1, characterized in that the temporary water storage tank (2) is communicated with the first pipeline (6) through a second pipeline (7), and a switch valve is arranged at the joint of the second pipeline (7) and the first pipeline (6).
3. A liquid precision metering and control device according to claim 1, characterized in that the dosing pump (3) is located on the first conduit (6) between the circulation tank (4) and the buffer tank (2).
4. A device for the precise metering and control of liquids as claimed in claim 1, characterised in that a flow control valve is arranged in the first conduit (6) between the liquid supply unit (1) and the buffer tank (2).
5. The device for accurately metering and controlling the liquid as claimed in claim 1, wherein the liquid supply unit (1) comprises a liquid supply tank body and a water pump, and the water pump is used for pumping out the liquid in the liquid supply tank body and inputting the liquid into the circulating water tank (4) or the temporary storage water tank (2).
6. A device for the precise metering and control of liquids as claimed in claim 1, characterized in that the bottom of the circulation tank (4) is provided with a conductivity meter (5).
7. A device according to claim 6, characterized in that it further comprises a control unit, said conductivity meter (5) being electrically connected to said control unit.
8. A device for the precise metering and control of liquids as claimed in claim 6, characterized in that stirring means are provided in the circulation tank (4).
9. The device for accurately metering and controlling the liquid as claimed in claim 7, wherein the control unit is electrically connected with the liquid supply unit (1) and the quantitative pump (3), respectively.
10. The apparatus as claimed in claim 5, wherein the water pump is electrically connected to the control unit; the liquid supply tank body is provided with a liquid supplement port, and the liquid supplement port is provided with a sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222627170.5U CN218724411U (en) | 2022-09-30 | 2022-09-30 | Liquid accurate metering and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222627170.5U CN218724411U (en) | 2022-09-30 | 2022-09-30 | Liquid accurate metering and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218724411U true CN218724411U (en) | 2023-03-24 |
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ID=85638900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222627170.5U Active CN218724411U (en) | 2022-09-30 | 2022-09-30 | Liquid accurate metering and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218724411U (en) |
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2022
- 2022-09-30 CN CN202222627170.5U patent/CN218724411U/en active Active
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