TWI436951B - Clean water supply system and method thereof - Google Patents

Description

Washing water supply system and supply method thereof

The present invention relates to a water supply system and a method of supplying the same, and more particularly to a wash water supply system and a method of supplying the same.

In recent years, liquid crystal displays have been widely used in various electronic products (for example, televisions, mobile phones, notebook computers, satellite navigation devices, etc.) because of their advantages of light weight, small size, and low power consumption.

The process of the liquid crystal display can be mainly divided into a TFT Array process, a color filter process, a liquid crystal panel assembly (LC Cell Assembly), and a liquid crystal panel module assembly, in which a color filter is used. The light process includes steps of cleaning, molding, lithography, and stripping (photoresist removal). In order to ensure the quality of the color filter, a cleaning system is often used in the color filter process to remove impurities, particles, or photoresists adhering to the substrate.

However, in the cleaning system described above, it is often necessary to use a large amount of washing water (for example, deionized water) for the cleaning treatment. Taking the existing cleaning system as an example, most of the washing water is still supplied by the deionized water of the water supply device, so that the utilization rate of the wastewater cannot be improved, and the high water saving efficiency cannot be achieved.

The invention provides a washing water supply system and a supply method thereof, through the arrangement of pipelines and the deployment of control valves, to switch different water supply sources, thereby responding to the use requirements of the washing water and improving the water saving efficiency.

The washing water supply system of the present invention is applied to a target object carried on a washing conveyor belt, and the washing water supply system comprises a first waste water storage tank, a second waste water storage tank, a first water washing treatment room and a first Second washing treatment room. The first wastewater storage tank can be used to store the first wastewater. A second wastewater storage tank can be used to store the second wastewater. The second wastewater storage tank receives the first water source from the first water source through the first pipeline. The second wastewater storage tank also uses a second water source from the second water source through the second pipeline, wherein the second wastewater of the second wastewater storage tank can overflow to the first wastewater storage tank. The first water washing treatment chamber performs a first water washing treatment on the target through the third pipeline using the first wastewater from the first wastewater storage tank. The second water treatment processing chamber uses the second wastewater from the second wastewater storage tank through the fourth pipeline, or the second water treatment processing chamber uses the second water source from the second water source supply through the fifth pipeline to wash in the first water After the treatment, the target material is subjected to a second water washing treatment.

In addition, the method for supplying washing water of the present invention comprises the steps of: firstly, setting a first wastewater storage tank to store the first wastewater, and setting a second wastewater storage tank to store the second wastewater, wherein the second wastewater can overflow To the first wastewater storage tank. Next, a first line is provided to provide a first water source to a second wastewater storage tank of the first water source supply, and a second line is provided to provide a second water source to a second wastewater storage tank of the second water source supply, and A third line is provided to provide a first wastewater of the first wastewater storage tank to the first water treatment chamber, and a fourth line is provided to provide a second wastewater of the second wastewater storage tank to the second water treatment chamber.

Next, the target is transported to the first water washing treatment chamber by the conveyor belt, and the target water is subjected to the first water washing treatment through the third pipeline using the first wastewater from the first wastewater storage tank. Then, using the conveyor belt to carry the target to the second water washing treatment chamber, using the second wastewater from the second wastewater storage tank through the fourth pipeline or using the second water supply device through the fifth pipeline The water source is subjected to a second water washing treatment on the target.

In summary, the washing water supply system and the supply method thereof of the present invention can utilize the recovered wastewater as the main source of water supply for the washing process, and if the recovered wastewater is insufficient for the water source demand for the washing process, it can be adjusted. The state of the control valve (for example, opening or closing) set in each of the pipelines is switched to switch the main water supply source of the washing water by the washing water. Therefore, the washing water supply method proposed by the present invention is preferable. The flexibility of the present invention can also greatly improve the water saving efficiency as compared with the conventional technique in which washing water is used as the main source of water supply for the washing process.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Please refer to FIG. 1. FIG. 1 is a schematic diagram of a washing water supply system according to an embodiment of the present invention. As shown in FIG. 1, the washing water supply system 200 of the embodiment of the present invention includes a first wastewater storage tank 10, a second wastewater storage tank 20, a first water washing treatment chamber 30, and a second water washing treatment chamber 40.

The components of the washing water supply system 200 will be described below. The first wastewater storage tank 10 can be used to store the first wastewater 101. The first wastewater 101 includes, for example, recovered water after washing treatment or other similar properties. In addition, the first wastewater storage tank 10 may also be connected to the first water source supply 70 through the sixth conduit 73, and the first wastewater storage tank 10 may receive the first water source 701 from the first water source supply 70.

As described above, the first control valve 90 is provided in the sixth line 73. The first control valve 90 can be constituted, for example, by a manual valve or an automatic valve. For example, when the first control valve 90 is opened, the first water source 701 of the first water source supply 70 may be correspondingly flown into the first wastewater storage tank 10. When the first control valve 90 is closed, the first water source 701 of the first water source supply 70 can be stopped from flowing into the first wastewater storage tank 10. It is worth mentioning that the first water source supply 70 can collect and/or treat wastewater from other machines (not shown) as a source of the first water source 701.

A second wastewater storage tank 20 is disposed adjacent to the first wastewater storage tank 10 (as shown on the right side of the first wastewater storage tank 10 in FIG. 1). The second wastewater storage tank 20 can be used to store the second wastewater 201. The second wastewater 201 may also include, for example, recovered water after washing or other similar properties.

The second wastewater storage tank 20 is connectable to the first water source supply 70 through the first conduit 71, and the second wastewater storage tank 20 can receive the first water source 701 from the first water source supply 70. In addition, in another embodiment, between the first water source supply 70 and the first pipeline 71 and between the first water source supply 70 and the sixth pipeline 73, one or more filtering devices 75 may be disposed. The purity of the first water source 701 supplied to the first wastewater storage tank 10 and the second wastewater storage tank 20 is increased. The number and position of the filtering devices are not limited here and can be adjusted according to actual needs.

As described above, the second control valve 91 may be provided in the first line 71. The second control valve 91 can be constituted, for example, by a manual valve or an automatic valve. For example, when the second control valve 91 is opened, the first water source 701 of the first water source supply 70 may be correspondingly flown into the second wastewater storage tank 20. When the second control valve 91 is closed, the first water source 701 of the first water source supply 70 can be stopped from flowing into the second wastewater storage tank 20.

In addition, the second wastewater storage tank 20 may also be connected to the second water source supply 80 through the second conduit 83, and the second wastewater storage tank 20 may receive the second water source 801 from the second water source supply 80. The second water source 801 can be, for example, deionized water or pure water. It is worth mentioning that the purity of the first water source 701 is lower than or equal to the purity of the second water source 80, and the purity of the first wastewater 101 is lower than or equal to the purity of the second wastewater 201.

As described above, the third control valve 92 is provided in the second line 83. The third control valve 92 can be opened or closed to allow the second water source 801 of the second water source supplier 80 to flow into the second wastewater storage tank 20, or to stop the second water source 801 of the second water source supplier 80. It flows into the second wastewater storage tank 20. It is worth mentioning that the second water source supply 80 can be, for example, a supply of pure water or deionized water provided by the factory to provide pure water or deionized water as a source of the second water source 801. In addition, the third control valve 92 may be constituted, for example, by a manual valve or an automatic valve, but is preferably an automatic valve and may be opened or closed according to a set fluid pressure value.

As shown in FIG. 1, the second wastewater storage tank 20 has a liquid storage height higher than that of the first wastewater storage tank 10, and therefore, the second wastewater 201 of the second wastewater storage tank 20 can overflow to the first wastewater storage tank 10. In addition, the second wastewater storage tank 20 may have an overflow overflow pipe or an overflow port (not shown) to assist in overflowing the second wastewater 201 to the first wastewater storage tank 10.

A first water washing treatment chamber 30 and a second water washing treatment chamber 40 are disposed above the first wastewater storage tank 10 and the second wastewater storage tank 20, respectively. In addition, the installation positions of the first water washing processing chamber 30 and the second water washing processing chamber 40 are merely illustrative and are not intended to be limiting.

The conveyor belt 210 passes through the first water washing treatment chamber 30 and the second water washing treatment chamber 40, respectively. The conveyor belt 210 can be driven by a member such as a driver (for example, a motor), a roller, or the like. Thereby, the conveyor belt 210 can be used to carry the target 220 to the conveying direction indicated in FIG. The target object 220 can be, for example, a glass substrate, a circuit board, or the like, or an object that needs to be washed after the process of cleaning, developing, stripping, etc., but is not limited thereto. If there is another cleaning requirement, in another embodiment of the present invention, a water washing processing chamber (not shown) may be disposed in front of the first water washing processing chamber 30, or in the first water washing processing chamber 30 and the first A water washing treatment chamber (not shown) is disposed between the two water treatment processing chambers 40 for cleaning the target 220.

The first water washing process chamber 30 is connectable to the first waste water storage tank 10 through the third line 11. The first water washing treatment chamber 30 may perform the first water washing treatment on the target 220 using the first wastewater 101 from the first wastewater storage tank 10. Still further, one or more nozzles 32 may be disposed above the conveyor belt 210 in the first water washing process chamber 30. The first wastewater storage tank 10 and the nozzle 32 are connected through the third conduit 11 so that the nozzle 32 ejects a water column or a water mist to the upper surface of the target 220, thereby removing impurities such as impurities or particles on the upper surface of the target 220. In addition, the first water washing treatment chamber 30 can also discharge the first water-washed wastewater through the first discharge line 31 to a wastewater treatment station (not shown) to perform a related wastewater treatment process.

On the other hand, one or more nozzles 34 may be disposed below the conveyor belt 210 in the first water washing process chamber 30. The nozzle 34 can eject a water column or a water mist to the lower surface of the target 220, thereby removing impurities such as impurities or particles on the lower surface of the target 220. The nozzles 32 and 34 may spray water to the target 220 at the same time or at different times to perform the first water washing treatment on the target 220. In addition, one or more filtering devices 13 may preferably be provided in the third conduit 11 to enhance the purity of the first wastewater 101 supplied to the first water washing treatment chamber 30. The number and position of the filtering devices are not limited here and can be adjusted according to actual needs.

Next, the second water washing process chamber 40 is connectable to the second water source supply 80 through the fifth line 81. Additionally, one or more filtering devices 88 may preferably be provided in the fifth conduit 81 to enhance the purity of the second water source 801 to the second water treatment chamber 40. The number and position of the filtering devices are not limited here and can be adjusted according to actual needs. The second water treatment process chamber 40 can receive and use a second water source 801 from the second water source supply 80. A fourth control valve 93 is provided in the fifth line 81. The fourth control valve 93 can be constituted, for example, by a manual valve or an automatic valve. For example, when the fourth control valve 93 is opened, the second water source 801 of the second water source supplier 80 may be correspondingly flown into the second water washing processing chamber 40. When the fourth control valve 93 is closed, the second water source 801 of the second water source supplier 80 can be stopped from flowing into the second water washing process chamber 40.

The second water washing process chamber 40 is connectable to the second waste water storage tank 20 through the fourth line 21. The second water treatment processing chamber 40 may use the second wastewater 201 from the second wastewater storage tank 20 to perform a second water washing treatment on the target 220 after the first water washing treatment. In addition, the second water washing treatment chamber 40 can also discharge the second water-washed wastewater to the second wastewater storage tank 20 through the second discharge line 41.

A fifth control valve 94 may be provided in the fourth line 21. The fifth control valve 94 can be constituted, for example, by a manual valve or an automatic valve. For example, when the fifth control valve 94 is opened, the second wastewater 201 of the second wastewater storage tank 20 may be correspondingly flown into the second water washing treatment chamber 40. When the fifth control valve 94 is closed, the second wastewater 201 of the second wastewater storage tank 20 can be stopped from flowing into the second water washing treatment chamber 40.

Likewise, one or more nozzles 42 may be disposed above the conveyor belt 210 in the second water treatment process chamber 40. The second wastewater storage tank 20 and the nozzle 42 are connected through the fourth line 21 so that the nozzle 42 ejects the water column or the water mist to the upper surface of the target 220, thereby removing impurities such as impurities or particles on the upper surface of the target 220.

On the other hand, one or more nozzles 44 may be disposed below the conveyor belt 210 in the second water washing process chamber 40. The nozzle 44 can eject a water column or a water mist to the lower surface of the object 220, thereby removing substances such as impurities or particles on the lower surface of the object 220. The nozzles 42 and 44 may spray water to the target 220 at the same time or at different times to perform the second water washing treatment on the target 220. Additionally, one or more filtering devices 28 may preferably be provided in the fourth conduit 21 to enhance the purity of the second wastewater 201 supplied to the second water treatment chamber 40. The number and position of the filtering devices are not limited here and can be adjusted according to actual needs.

Incidentally, a flow meter (not shown) may be disposed in each of the above pipelines, and the flow rate value, pressure value, and the like of each pipeline may be monitored or recorded through a computer system (not shown) to Further remotely adjust the state of each control valve.

The adjustment state of the water supply mode of the washing water supply system 200 will be described below. As shown in FIG. 1 , when the water supply demand of the first water source 701 is smaller than the water demand of the second water source 801, the first control valve 90 can be turned off and the second control valve 91 can be When the third control valve 92 is closed, the fourth control valve 93 is open, and the fifth control valve 94 is closed, the second water source 801 is used as the main supply source, and the first water source 701 is supplied as the auxiliary water supply mode. For example, this water supply mode can be used as the main source of supply of pure water or deionized water, and can be applied to targets that require special cleaning requirements or to elastic applications that match water sources. In the above water supply mode, when the water supply amount of the second water source 801 is less than the water source demand amount of the second water source 801, the first control valve 90 is changed to be opened to replenish the first water source 701 to the first wastewater storage tank. 10. Preferably, each of the above control valves can be adjusted to be turned on or off through a computer system.

In addition, if the water source demand of the first water source 701 is greater than the water source demand of the second water source 801, the first control valve 90 can be turned off and the second control valve 91 can be turned on. The third control valve 92 is closed, the fourth control valve 93 is closed, and the fifth control valve 94 is opened to realize that the first water source 701 is the main source of supply, and the second water source 801 is supplied as the auxiliary water supply mode. For example, this water supply model can recycle used water as the main source of supply, and can be applied to improve the water-saving efficiency of washing or to match the elastic application of the water source. In this water supply mode, when the water supply amount of the first water source 701 is less than the water source demand of the first water source 701, the third control valve 92 may be changed to be opened to replenish the second water source 801 to the second wastewater storage tank. 20. Further, the second wastewater 201 of the second wastewater storage tank 20 is overflowed to the first wastewater storage tank 10.

In addition, in the above water supply mode, in another embodiment of the present invention, when the water supply amount of the first water source 701 is less than the water source demand amount supplied to the first water source 701, the second control valve 91 may be changed to be closed, The fourth control valve 93 is changed to open and the fifth control valve 94 is changed to closed, that is, the first control valve 90 is closed, the second control valve 91 is closed, the third control valve 92 is closed, and the fourth control valve 93 is closed. The opening and fifth control valve 94 are closed to achieve the desired water supply mode. That is to say, the desired mode can be switched according to the elasticity.

Next, please refer to FIG. 2. FIG. 2 is a schematic diagram of the first wastewater storage tank and the second wastewater storage tank of the present invention. As shown in FIG. 2, the first wastewater storage tank 10 is provided with a first sensor 10a, a second sensor 10b, a third sensor 10c and a fourth sensor 10d corresponding to different liquid level heights. The first sensor 10a is disposed at the highest position. Further, the first sensor 10a is disposed farthest from the bottom of the second wastewater storage tank 20. The second sensor 10b is disposed lower than the first sensor 10a. The third sensor 10c is disposed lower than the second sensor 10b. The fourth sensor 10d is disposed lower than the third sensor 10c. Each of the sensors can be used to provide level warning information.

In addition, an overflow pipe 15 may be disposed at a position of the first wastewater storage tank 10 at a side between the first sensor 10a and the second sensor 10b to discharge excess first wastewater 101, thereby avoiding The first wastewater 101 overflows the first wastewater storage tank 10.

When the liquid level of the first wastewater 101 in the first wastewater storage tank 10 is lower than the third sensor 10c (or the allowable liquid level), that is, when the first wastewater 101 is not enough for the first water washing treatment, the individual wastewater can be adjusted. The valve is opened or closed to supply the first water source 701 to the first wastewater storage tank 10. For example, the state of the first control valve 90 is changed to be on to supply the first water source 701 of the first water source supply 70 to the first wastewater storage tank 10.

In addition, in another embodiment of the present invention, when the liquid level of the first wastewater 101 in the first wastewater storage tank 10 is lower than the third sensor 25, that is, the first wastewater 101 will be insufficient for the first water washing treatment. The second wastewater 201 of the second wastewater storage tank 20 can be overflowed to the first wastewater storage tank 10 by adjusting the opening or closing of each control valve. Thereby, the problem that the liquid level in the first wastewater storage tank 10 is too low to cause the washing water supply system 200 to malfunction can be avoided. For example, the state of the third control valve 92 can be changed to be on, so that the second water source 801 of the second water source supplier 80 is supplied to the second wastewater storage tank 20, thereby making the second wastewater of the second wastewater storage tank 20 101 overflows to the first wastewater storage tank 10.

As described above, in the process of overflowing the second wastewater 201 of the second wastewater storage tank 20 to the first wastewater storage tank 10, the first water source 701 of the first water source supply 70 may also be supplied to the second wastewater. The way of storing the tank 20 is achieved. For example, when the state of the second control valve 91 is ON, the first water source 701 of the first water source supply 70 may be supplied to the second wastewater storage tank 20.

Please refer to FIG. 3. FIG. 3 is a flow chart showing the steps of the method for supplying the washing water according to the embodiment of the present invention. For convenience of description, reference may be made to FIG. 1 and FIG. 3 . First, in step S401, a first wastewater storage tank 10 is disposed to store the first wastewater 101, and a second wastewater storage tank 20 is disposed to store the second wastewater 201. The second wastewater 201 may overflow to the first wastewater storage tank 10. It is worth mentioning that the purity of the first water source 701 is lower than the purity of the second water source 801, and the purity of the first wastewater 101 is also lower than the purity of the second wastewater 201.

The first line 71 is provided to provide the first water source 701 to the second wastewater storage tank 20 of the first water source supply 70, and the second line 83 is provided to provide the second water source 801 to the second of the second water source supply 80 The wastewater storage tank 20 is provided with a third pipeline 11 to provide the first wastewater 101 of the first wastewater storage tank 10 to the first water washing treatment chamber 30, and a fourth pipeline 21 is provided to provide the second wastewater of the second wastewater storage tank 20. 201 to the second water washing treatment chamber 40, and a fifth line 81 is provided to connect the second water source supplier 80 to the second water washing processing chamber 40. Further, a sixth line 73 is provided to connect the first water source supply 70 to the first wastewater storage tank 10. A first control valve 90 may be provided in the sixth line 73 to control whether the first water source 701 is delivered to the first wastewater storage tank 10. A second control valve 91 is provided in the first line 71 to control whether the first water source 701 is delivered to the second wastewater storage tank 20. A third control valve 92 is provided in the second line 83 to control whether the second water source 801 is delivered to the second wastewater storage tank 20. A fourth control valve 93 is provided in the fifth line 81 to control whether the second water source 801 is delivered to the second water washing process chamber 40. A fifth control valve 94 is provided in the fourth line 21 to control whether the second wastewater 201 is delivered to the second water washing process chamber 40.

In step S403, the target is transported to the first washing processing chamber 30 by the conveyor belt, and the first water washing treatment is performed on the target by the first wastewater 101 from the first wastewater storage tank 10 through the third conduit 11.

Next, in step S405, the target belt is transported to the second water washing processing chamber 40 by the conveyor belt, and the second wastewater 201 from the second wastewater storage tank 20 is used to pass through the fourth pipeline 21 to the target. a second water washing treatment, and the second water source 801 from the second water source supplier 80 may be used to perform a second water washing treatment through the fifth water line 81, wherein the first water washing treated wastewater can pass through the first discharge The pipeline 31 discharges the first water washing treatment chamber 30 to the wastewater treatment station (not shown) for the relevant wastewater treatment process, and the second water treatment treated wastewater can be discharged to the second water treatment treatment chamber through the second discharge conduit 41. 40 to the second wastewater storage tank 20 to be reused again and to improve water saving efficiency.

Although one of the embodiments of the present invention uses the first water source 701 as the main supply source, the second water source 801 supplies the auxiliary water supply mode, that is, to recover the used water source as the main water supply for the washing water supply system 200. Source, but testing the water quality through a Particle Counter ensures compliance with current target manufacturing processes (eg color filter processes). For example, the particle counters (not shown) are respectively connected to both ends of the filtering device 28 (shown in FIG. 1) to obtain the pre-filtering data and the filtered data, respectively. The sampling time is 50 minutes and sampled 20 times, which is in line with the current color filter process requirements for the purity of the washing water (the number of particles of 0.2 μm is 5 or less).

In summary, the washing water supply system and the supply method thereof of the present invention can utilize one of the first water source and the second water source as the main water supply source of the washing program, but the main water source is insufficient to supply the water source of the washing program. In the case of demand, the state of the control valve (for example, on or off) preset in each pipeline can be adjusted to switch the first water source and the second water source as the auxiliary water supply source of the cleaning program, so The washing water supply method proposed by the invention has better flexibility, and the invention can also greatly improve the water saving efficiency compared with the conventional technology that uses the washing water as the main water supply source of the washing program.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

10. . . First wastewater storage tank

10a. . . First sensor

10b. . . Second sensor

10c. . . Third sensor

10d. . . Fourth sensor

11. . . Third pipeline

13. . . filter

15. . . Overflow pipe

101. . . First wastewater

20. . . Second wastewater storage tank

twenty one. . . Fourth pipeline

28. . . filter

200. . . Washing water supply system

201. . . Second wastewater

210. . . conveyor

220. . . Target

30. . . First washing treatment room

31. . . First discharge line

32. . . nozzle

34. . . nozzle

40. . . Second washing treatment room

41. . . Second discharge line

42. . . nozzle

44. . . nozzle

70. . . First water supply

71. . . First line

73. . . Sixth pipeline

75. . . filter

701. . . First water source

80. . . Second water supply

81. . . Fifth pipeline

83. . . Second pipeline

88. . . filter

801. . . Second water source

90. . . First control valve

91. . . Second control valve

92. . . Third control valve

93. . . Fourth control valve

94. . . Fifth control valve

S401~S405. . . Step process description

FIG. 1 is a schematic diagram of a washing water supply system according to an embodiment of the present invention.

2 is a schematic view of a first wastewater storage tank and a second wastewater storage tank according to an embodiment of the present invention.

3 is a flow chart showing the steps of a method for supplying washing water according to an embodiment of the present invention.

10. . . First wastewater storage tank

11. . . Third pipeline

13. . . filter

15. . . Overflow pipe

101. . . First wastewater

20. . . Second wastewater storage tank

twenty one. . . Fourth pipeline

28. . . filter

200. . . Washing water supply system

201. . . Second wastewater

210. . . conveyor

220. . . Target

30. . . First washing treatment room

31. . . First discharge line

32. . . nozzle

34. . . nozzle

40. . . Second washing treatment room

41. . . Second discharge line

42. . . nozzle

44. . . nozzle

70. . . First water supply

71. . . First line

73. . . Sixth pipeline

75. . . filter

701. . . First water source

80. . . Second water supply

81. . . Fifth pipeline

83. . . Second pipeline

88. . . filter

801. . . Second water source

90. . . First control valve

91. . . Second control valve

92. . . Third control valve

93. . . Fourth control valve

94. . . Fifth control valve

Claims (27)

A washing water supply system for washing a target carried on a conveyor belt, the washing water supply system comprising: a first wastewater storage tank for storing a first wastewater; a second a wastewater storage tank for storing a second wastewater, the second wastewater storage tank receiving a first water source from a first water source through a first pipeline, and the second wastewater storage tank is passed through a first The second pipeline uses a second water source from a second water source supply, wherein the second wastewater of the second wastewater storage tank can overflow to the first wastewater storage tank; a first water treatment chamber passes through The third pipeline uses the first wastewater from the first wastewater storage tank to perform a first water washing treatment on the target; and a second water washing treatment chamber is used in the second wastewater storage through a fourth pipeline The second wastewater of the tank, the second water washing treatment chamber uses the second water source from the second water source through a fifth pipeline, and the second water washing treatment chamber is after the first water washing treatment Carrying out a second wash . The washing water supply system of claim 1, wherein the first water washing treatment chamber discharges the first water-washed wastewater through a first discharge line, and the second water washing treatment chamber passes through A second discharge line discharges the second water-washed wastewater to the second wastewater storage tank. The washing water supply system of claim 1, further comprising: a sixth pipeline for connecting the first water source to the first wastewater storage tank; a first control valve, The second control valve is disposed in the first pipeline; a third control valve is disposed in the second pipeline; and a fourth control valve is disposed in the fifth pipeline a pipeline; and a fifth control valve disposed in the fourth pipeline. The washing water supply system of claim 3, wherein the first control valve is closed, the second control valve is closed, the third control valve is closed, and the fourth control valve is open, When the fifth control valve is closed, the water source demand of the first water source is less than the water source demand of the second water source. The washing water supply system of claim 4, wherein the first control valve is changed to open when the water supply amount of the second water source is insufficient to supply the water source demand of the second water source The first water source is supplemented to the first wastewater storage tank. The washing water supply system of claim 3, wherein the first control valve is closed, the second control valve is open, the third control valve is closed, and the fourth control valve is closed. When the fifth control valve is open, the water source demand of the first water source is greater than the water source demand of the second water source. The washing water supply system of claim 6, wherein the third control valve is changed to open when the water supply amount of the first water source is insufficient to supply the water source demand of the first water source The second water source is supplemented to the second wastewater storage tank. The washing water supply system according to claim 6, wherein the second control valve is changed to closed, the fourth when the water supply amount of the first water source is less than the water supply demand amount of the first water source. The control valve is changed to open and the fifth control valve is changed to closed. The washing water supply system of claim 1, wherein the purity of the first water source is lower than the purity of the second water source, and the purity of the first wastewater is lower than the purity of the second wastewater degree. The washing water supply system of claim 1, wherein the first wastewater storage tank is provided with a first sensor and a second sensor lower than the set position of the first sensor. a third sensor lower than the set position of the second sensor and a fourth sensor lower than the set position of the third sensor, and the first portion of the first waste water storage tank When the wastewater level is lower than the third sensor, the first water source is supplied to the first wastewater storage tank. The washing water supply system of claim 1, wherein the first wastewater storage tank is provided with a first sensor and a second sensor lower than the set position of the first sensor. a third sensor lower than the set position of the second sensor and a fourth sensor lower than the set position of the third sensor, and the first of the first waste water storage tank When the wastewater level is lower than the third sensor, the second wastewater of the second wastewater storage tank overflows to the first wastewater storage tank. The washing water supply system of claim 11, wherein overflowing the second wastewater of the second wastewater storage tank to the first wastewater storage tank comprises supplying the first water source to the second wastewater Storage tank. The washing water supply system of claim 11, wherein overflowing the second wastewater of the second wastewater storage tank to the first wastewater storage tank comprises supplying the second water source to the second wastewater Storage tank. A method for supplying a washing water, comprising the steps of: setting a first wastewater storage tank to store a first wastewater, and providing a second wastewater storage tank to store a second wastewater, wherein the second wastewater can overflow to The first wastewater storage tank is provided with a first pipeline to provide a first water source of the first water source supply to the second wastewater storage tank, and a second pipeline is provided to provide a second water source supply a second water source to the second wastewater storage tank, a third pipeline is provided to provide the first wastewater of the first wastewater storage tank to a first water washing treatment chamber, and a fourth pipeline is provided to provide the second wastewater Storing the second wastewater of the storage tank to a second water treatment processing chamber, providing a fifth pipeline to provide the second water source of the second water source supply to the second water treatment processing chamber; and carrying a target by using a conveyor belt Go to the first water washing treatment chamber, perform a first water washing treatment on the target through the first wastewater from the first wastewater storage tank through the third pipeline; and use the conveyor belt to carry the target to the first Second washing treatment room, Passing the second pipeline from the second wastewater from the second wastewater storage tank or using the second water source from the second water source through the fifth pipeline to perform a second water washing on the target deal with. The method of supplying water according to claim 14, wherein the wastewater after the first water washing treatment is discharged to the first water washing treatment chamber through a first discharge line, and the wastewater after the second water washing treatment passes through The second discharge line discharges the second water treatment processing chamber to the second wastewater storage tank. The method of supplying water according to claim 14, further comprising: providing a sixth pipeline for connecting the first water source to the first wastewater storage tank; and setting a first control a valve is disposed in the sixth pipeline; a second control valve is disposed in the first pipeline; a third control valve is disposed in the second conduit; and a fourth control valve is disposed in the fifth conduit And setting a fifth control valve in the fourth line. The method of supplying water according to claim 16, wherein when the water source demand of the first water source is less than the water source demand of the second water source, the first control valve is closed and the second control valve is closed. Closing the third control valve, opening the fourth control valve, and closing the fifth control valve. The method of supplying water according to claim 17, wherein when the water supply amount of the second water source is insufficient to supply the water source demand of the second water source, the first control valve is changed to open the first A water source is supplemented to the first wastewater storage tank. The method of supplying water according to claim 16, wherein when the water source demand of the first water source is greater than the water source demand of the second water source, the first control valve is closed, the second control valve is opened, Close the third control valve, close The fourth control valve is closed and the fifth control valve is opened. The method of supplying water according to claim 19, wherein when the water supply amount of the first water source is less than the water source demand of the first water source, the third control valve is changed to open the second The water source is supplemented with a second wastewater storage tank. The method of supplying water according to claim 19, wherein when the water supply amount of the first water source is less than the water source demand amount supplied to the first water source, the second control valve is changed to be closed, and the fourth is changed. The control valve and the change close the fifth control valve. The method of supplying water according to claim 14, wherein the purity of the first water source is lower than the purity of the second water source, and the purity of the first wastewater is lower than the purity of the second wastewater. degree. The method of supplying water according to claim 14, wherein the first water source is supplied to the first wastewater when the liquid level of the first wastewater in the first wastewater storage tank is lower than an allowable liquid level Storage tank. The method of supplying water according to claim 14, wherein the second wastewater storage tank is second when the liquid level of the first wastewater in the first wastewater storage tank is lower than a permitted liquid level. The wastewater overflows to the first wastewater storage tank. The method of supplying water according to claim 24, wherein overflowing the second wastewater of the second wastewater storage tank to the first wastewater storage tank comprises supplying the first water source to the second wastewater Storage tank. The method of supplying water according to claim 24, wherein overflowing the second wastewater of the second wastewater storage tank to the first wastewater storage tank comprises supplying the second water source to the second wastewater Storage tank. The method of supplying water according to claim 23, wherein the first wastewater storage tank is provided with a first sensor and a second lower than a position of the first sensor. a sensor, a third sensor lower than the set position of the second sensor, and a fourth sensor lower than the set position of the third sensor, and the first waste water storage tank The first wastewater level is lower than the allowable liquid level when the third sensor is lower than the third sensor.