Pure water treatment device

Abstract

The utility model relates to a pure water treatment device. The pure water treatment device comprises a collecting box, a first channel assembly capable of being opened and closed, and single-stage or multi-stage filtering units which are sequentially cascaded, the filtering unit comprises a filter, a liquid storage tank and a water quality detector arranged in the liquid storage tank, and the filter is communicated with the liquid storage tank; each liquid storage box is communicated with the collecting box through a group of corresponding first channel assemblies; wherein the first channel assembly is configured to be opened when a detection value of the water quality detector in the corresponding liquid storage tank exceeds a preset threshold value, so that liquid in the corresponding liquid storage tank is discharged into the collection tank. The pure water treatment device disclosed by the utility model is relatively high in liquid treatment quality and relatively low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a pure water treatment device. Background Art

[0002] In the semiconductor manufacturing process, most processes require chemical treatment, and each chemical treatment is inseparable from ultrapure water. At present, ultrapure water is usually obtained by filtering raw water with pure water treatment equipment. However, most of the existing pure water treatment equipment has a short filter life, and the filter is not replaced in time, resulting in substandard water quality after treatment. Utility Model Content

[0003] Based on this, it is necessary to provide a pure water treatment device with high liquid treatment quality and low cost.

[0004] The pure water treatment device provided in the embodiment of the present application comprises a collection box, an openable and closable first channel component, and a single-stage or multi-stage cascaded filtering unit;

[0005] The filter unit comprises: a filter, a liquid storage tank, and a water quality detector arranged in the liquid storage tank, and the filter is connected with the liquid storage tank;

[0006] Each liquid storage tank is connected to the collection tank through a corresponding set of first channel components;

[0007] Wherein, the first channel component is configured to open when the detection value of the water quality detector in the corresponding liquid storage tank exceeds a preset threshold value, so that the liquid in the corresponding liquid storage tank is discharged into the collection box.

[0008] In one embodiment, the first channel assembly includes a first pipeline and a first opening and closing valve arranged on the first pipeline, and two ends of the first pipeline are respectively connected to the liquid storage tank and the collection tank.

[0009] In one embodiment, the liquid storage box comprises an inlet and a liquid discharge port, the inlet is connected to the liquid outlet of the filter, and the end of the first pipe facing away from the collection box is connected to the liquid discharge port.

[0010] In one embodiment, the pure water treatment device further comprises an openable and closable second channel component, and the filter unit directly connected to the source of the liquid to be treated is defined as a primary filter unit;

[0011] The collection box is also connected to the liquid inlet end of the filter of the primary filter unit through the second channel assembly.

[0012] In one embodiment, the second channel component includes a second pipeline and a second on-off valve disposed on the second pipeline.

[0013] In one embodiment, the water quality detector is configured as a submersible turbidity sensor or a flow-through turbidity sensor.

[0014] In one of the embodiments, a collection box water quality detector is provided in the collection box.

[0015] In one of the embodiments, a liquid level sensor is provided in each liquid storage tank.

[0016] In one of the embodiments, the liquid storage tank further includes an outlet;

[0017] The filter units are configured as multiple stages cascaded in sequence;

[0018] The filtration unit directly connected to the source of the liquid to be treated is defined as a primary filtration unit, and the filtration units other than the primary filtration unit are defined as secondary filtration units;

[0019] The liquid inlet end of the filter of the primary filter unit is connected to a source of liquid to be treated;

[0020] The liquid inlet end of the filter of each secondary filter unit is connected to the outlet of the liquid storage tank of the filter unit adjacent to the upstream side.

[0021] In one of the embodiments, a one-way valve is provided between the filter of the same secondary filter unit and the inlet of the liquid storage tank.

[0022] Beneficial effects of the above-mentioned pure water treatment device:

[0023] Each liquid storage tank is connected to the collection tank through a set of corresponding first channel components, and the first channel component is configured to open when the detection value of the water quality detector in the corresponding liquid storage tank exceeds a preset threshold value, so that when the quality of the liquid in the liquid storage tank does not meet the standard, the liquid in the liquid storage tank can be discharged to the collection tank through the first channel component, and the part of the liquid that does not meet the quality standard will not be directly used as a processed liquid product, or will no longer continue to flow to the lower filter unit. In this way, when the quality of the liquid does not meet the standard, the liquid that does not meet the standard can be discharged in time, so as to finally obtain a liquid with reliable treatment quality. In the case where the filter unit is a multi-stage cascade, the liquid that does not meet the quality standard in the filter unit with quality problems can be discharged in time, and no longer pass through other filter units, so as to avoid the situation where the liquid that does not meet the quality standard still does not meet the standard after being filtered step by step in the filter units at each level, which can increase the service life of the filters in the remaining filter units, reduce costs, and ultimately improve the quality of liquid treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of the structure of a pure water treatment device provided in an embodiment of the present application;

[0025] FIG. 2 is a schematic diagram of another structure of a pure water treatment device provided in an embodiment of the present application.

[0026] Description of Figure Numbers:

[0027] 100. Pure water treatment device;

[0028] 10. First channel assembly; 11. First pipeline; 12. First opening and closing valve; 20. Collection box; 21. Collection box water quality detector;

[0029] 30. Filter unit; 31. Filter; 311. Liquid inlet end of the filter; 312. Liquid outlet end of the filter; 32. Liquid storage tank; 321. Inlet; 322. Outlet; 323. Liquid outlet; 324. Liquid level sensor; 33. Water quality detector;

[0030] 40. primary filter unit; 50. secondary filter unit;

[0031] 60. Second channel assembly; 61. Second pipeline; 62. Second opening and closing valve;

[0032] 70. Check valve. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0039] FIG1 is a schematic diagram of the structure of a pure water treatment device provided in an embodiment of the present application, and FIG2 is a schematic diagram of another structure of a pure water treatment device provided in an embodiment of the present application.

[0040] The pure water treatment device 100 of the embodiment of the present application is described below in conjunction with the accompanying drawings. The pure water treatment device 100 is used to filter the liquid to be treated and obtain pure water after the treatment. The liquid to be treated can be raw water.

[0041] 1 and 2 , a pure water treatment device 100 provided in an embodiment of the present application includes a collection box 20 , an openable and closable first channel assembly 10 , and a single-stage or multi-stage cascaded filtering unit 30 .

[0042] The filter unit 30 includes: a filter 31, a liquid storage tank 32, and a water quality detector 33 disposed in the liquid storage tank 32. The filter 31 is connected to the liquid storage tank 32. The filter 31 and the liquid outlet tank 32 jointly define a filtration channel. Each liquid storage tank 32 is connected to the collection box 20 through a corresponding set of first channel components 10.

[0043] The first channel assembly 10 is configured to be opened when the detection value of the water quality detector 33 in the corresponding liquid storage tank 32 exceeds a preset threshold value, so that the liquid in the corresponding liquid storage tank 32 is discharged into the collection tank 20. The preset threshold value here can be a predetermined water quality standard value, which can be determined according to actual needs.

[0044] Since each liquid storage tank 32 is connected to the collection tank 20 through a corresponding set of first channel components 10, and the first channel component 10 is configured to be turned on when the detection value of the water quality detector 33 in the corresponding liquid storage tank 32 exceeds a preset threshold value, the liquid in the liquid storage tank 32 can be discharged to the collection tank 20 through the first channel component 10 when the quality of the liquid in the liquid storage tank 32 does not meet the standard, and the liquid that does not meet the quality standard will not be directly used as a processed liquid product, or will no longer continue to flow to the next level of the filter unit 30. In this way, when the quality of the liquid does not meet the standard, the liquid that does not meet the standard can be discharged in time, so as to facilitate the final treatment of liquid with reliable quality. In the case where the filter unit 30 is a multi-stage cascade, the liquid that does not meet the quality standard in the filter unit 30 with quality problems can be discharged in time, and no longer pass through other filter units 30, so as to avoid the situation that the liquid that does not meet the quality standard still does not meet the standard after being filtered step by step in the filter units 30 at each level, and the service life of the filter 31 in the remaining filter units 30 can be increased, the cost can be reduced, and the liquid treatment quality can be finally improved.

[0045] In the case where the filter unit 30 is a single-stage filter, the liquid in the liquid storage tank 32 is directly used as the treated liquid after filtering. In the case where the filter unit 30 is multi-stage, the liquid in the liquid storage tank 32 is filtered by one or more subsequent filter units 30 before being used as the treated liquid. It is understood that when the filter unit 30 is multi-stage, the filter units 30 of each stage are cascaded in sequence, which means that the filter units 30 of each stage are connected in series in sequence, so that the liquid to be treated can be filtered by the filter units 30 of each stage in sequence to obtain the treated liquid.

[0046] The water quality detector 33 can be used to detect the quality of the liquid in the liquid storage tank 32. For example, the water quality detector 33 is configured as a submersible turbidity sensor or a flow-through turbidity sensor. When the water quality detector 33 is a flow-through turbidity sensor, the water quality detector 33 can be arranged in the liquid storage tank 32 near the inlet 321. When the water quality detector 33 is a submersible turbidity sensor, the water quality detector 33 can be installed in the liquid storage tank 32 via a mounting bracket (not shown).

[0047] In the embodiment of the present application, the first channel component 10 includes a first pipe 11 and a first opening and closing valve 12 arranged on the first pipe 11, and the two ends of the first pipe 11 are respectively connected to the liquid storage tank 32 and the collection tank 20. In this way, the opening and closing of the first pipe 11 can be achieved by simply turning on and off the first opening and closing valve 12. In specific implementation, when the detection value of the water quality detector 33 in the liquid storage tank 32 exceeds the preset threshold, the corresponding first opening and closing valve 12 is opened, and the liquid in the liquid storage tank 32 is discharged into the collection tank 20 through the opened first pipe 11. Of course, when the detection value of the water quality detector 33 in the liquid storage tank 32 does not exceed the preset threshold, the corresponding first opening and closing valve 12 is closed, and the liquid in the liquid storage tank 32 does not enter the collection tank 20.

[0048] The pure water treatment device 100 may include a controller (not shown), which is electrically connected to each water quality detector 33 and the first opening and closing valve 12, and is used to record the detection data of the water quality detector 33, and the controller is used to control the first opening and closing valve 12 corresponding to the liquid storage tank 32 to open when the detection value of the water quality detector 33 in the liquid storage tank 32 exceeds a preset threshold value, so that the liquid in the liquid storage tank 32 is discharged into the collection tank 20 through the opened first pipe 11. Of course, the controller is also used to control the first opening and closing valve 12 corresponding to the liquid storage tank 32 to be in a closed state when the detection value of the water quality detector 33 in the liquid storage tank 32 does not exceed the preset threshold value.

[0049] Continuing to refer to FIG. 1 , the liquid storage tank 32 includes an inlet 321 and a drain port 323, the inlet 321 is connected to the liquid outlet 312 of the filter, and the drain port 323 is connected to the collection box 20 through the first pipe 11. In other words, the end of the first pipe 11 away from the collection box 20 is connected to the drain port 323. At this time, the liquid to be filtered is first filtered by the filter 31 and then enters the liquid storage tank 32, and the liquid storage tank 32 is used to store the filtered water. Of course, it can also be that the inlet 321 of the liquid storage tank 32 is connected to the source of the liquid to be treated, and the outlet 322 is connected to the liquid inlet end 311 of the filter. At this time, the liquid storage tank 32 is used to store the liquid to be filtered, which is equivalent to the original liquid tank. When the quality of the liquid in the liquid storage tank 32 is not up to standard, the filter 31 is closed, and the first channel assembly 10 is opened. The substandard liquid is discharged from the liquid storage tank 32 in time without passing through the filter 31, and then the liquid storage tank 32 is re-added with qualified liquid, which can also increase the service life of the filter 31. Ensure that the quality of the liquid stored in the liquid storage tank 32 is above a certain standard, reduce the processing load on the pure water treatment device 100, increase the resistivity of the treated liquid, and reduce the conductivity.

[0050] In the embodiment of the present application, a collection box water quality detector 21 is also provided in the collection box 20. The detector provided here can detect the quality of the liquid in the collection box 20, and the collection box water quality detector 21 and the water quality detector 33 in the liquid storage tank 32 can be of the same type or of different types.

[0051] In the embodiment of the present application, each liquid storage tank 32 may be provided with a liquid level sensor 324. Two liquid level sensors 324 may be provided, which are respectively used to detect the high liquid level and the low liquid level in the liquid storage tank 32. For example, when the liquid level in the liquid storage tank 32 reaches the high liquid level, the liquid inlet operation to the liquid storage tank 32 may be stopped. When the liquid level in the liquid storage tank 32 reaches the low liquid level, the first channel assembly 10 may be closed to stop the discharge of liquid to the collection tank 20.

[0052] In the embodiment of the present application, with continued reference to Figures 1 and 2, the pure water treatment device 100 also includes a second channel component 60 that can be opened and closed, and the filter unit 30 directly connected to the source of the liquid to be treated is defined as a primary filter unit 40, wherein the source of the liquid to be treated is a component for providing the liquid to be treated. Of course, when the filter unit 30 is a single-stage, the filter unit 30 is the primary filter unit 40. As shown in Figure 1, when the filter unit 30 is a multi-stage cascade, the filter unit 30 directly connected to the source of the liquid to be treated is the primary filter unit 40, and the remaining filter units 30 are secondary filter units 50.

[0053] The collection box 20 is also connected to the liquid inlet end 311 of the filter of the primary filter unit 40 through the second channel assembly 60. In this way, the substandard liquid in the collection box 20 can enter the primary filter unit 40 again through the second channel assembly 60 for filtration, and the cycle can be repeated to achieve the reuse of the substandard liquid and reduce costs.

[0054] In a specific implementation, the second channel assembly 60 includes a second pipeline 61 and a second opening and closing valve 62 disposed on the second pipeline 61. The second pipeline 61 can be opened and closed by controlling the second opening and closing valve 62. Of course, the second opening and closing valve 62 can be electrically connected to the controller, and the opening and closing of the second opening and closing valve 62 can be controlled by the controller.

[0055] In the embodiment of the present application, the liquid storage tank 32 also includes an outlet 322. When the filter unit 30 is a single-stage filter unit, the liquid flowing out of the outlet 322 can be used as the processed liquid. When the filter unit 30 is a multi-stage cascade, the connection method of the outlet 322 of each liquid storage tank 32 is slightly different.

[0056] For example, as mentioned above, when the filter units 30 are configured to be cascaded in multiple stages, the filter units 30 directly connected to the source of the liquid to be treated are defined as primary filter units 40, and the filter units 30 other than the primary filter units 40 are defined as secondary filter units 50. In addition, the embodiment of the present application is described by taking one primary filter unit 40 and two secondary filter units 50 as an example, and the case where the number of secondary filter units 50 is other is similar to this, and will not be repeated here.

[0057] The liquid inlet end 311 of the filter of the primary filter unit 40 is connected to a source of liquid to be treated (not shown). The liquid inlet end 311 of the filter of each secondary filter unit 50 is connected to the outlet 322 of the liquid storage tank 32 of the filter unit 30 adjacent to the upstream side. Of course, in each filter unit 30, the liquid outlet end 312 of the filter is connected to the inlet 321 of the corresponding liquid storage tank 32 through a pipeline.

[0058] Furthermore, a one-way valve 70 is provided between the filter 31 of the same secondary filter unit 50 and the inlet 321 of the liquid storage tank 32. The conducting direction of the one-way valve 70 is from the filter 31 toward the liquid storage tank 32, so that the water in the downstream filter unit 30 can be prevented from flowing back into the upstream filter unit 30 to cause secondary pollution.

[0059] In the embodiment of the present application, for the case of a multi-stage cascaded filter unit 30, for any liquid storage tank 32, when the detection value detected by the water quality detector 33 in the liquid storage tank 32 exceeds the preset threshold value, the first opening and closing valve 12 on the corresponding first channel component 10 is opened, and the source of the liquid to be treated and the one-way valve 70 set between the liquid storage tank 32 and the downstream liquid storage tank 32 are closed, so that the liquid in the liquid storage tank 32 is discharged to the collection tank 20 through the corresponding first pipeline 11. When the second opening and closing valve 62 is opened, the liquid in the collection tank 20 can enter the primary filter unit 40 again for circulation filtration under the action of an external circulation drive component, such as a circulation pump, to form a filtration cycle. Of course, the control process can be controlled and realized by a controller. It can be understood that in the embodiment of the present application, a plurality of driving pumps (not shown) are also provided to drive the flow of the liquid, and the flow direction of the liquid is shown by the arrow in 2.

[0060] Optionally, in the embodiment of the present application, both the on-off valve and the one-way valve may be solenoid valves to facilitate control by a controller.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pure water treatment device, characterized in that: It includes a collecting box, an openable and closable first channel component, and a single-stage or multi-stage cascaded filtering unit; The filter unit comprises: a filter, a liquid storage tank, and a water quality detector arranged in the liquid storage tank, wherein the filter is in communication with the liquid storage tank; Each of the liquid storage tanks is connected to the collection tank through a corresponding set of the first channel components; Wherein, the first channel component is configured to open when the detection value of the water quality detector in the corresponding liquid storage tank exceeds a preset threshold value, so that the liquid in the corresponding liquid storage tank is discharged into the collection box.

2. The pure water treatment device according to claim 1, characterized in that: The first channel assembly includes a first pipeline and a first opening and closing valve arranged on the first pipeline, and two ends of the first pipeline are respectively connected to the liquid storage tank and the collection tank.

3. The pure water treatment device according to claim 2, characterized in that: The liquid storage box comprises an inlet and a liquid discharge port, the inlet is connected to the liquid outlet end of the filter, and the end of the first pipe facing away from the collection box is communicated with the liquid discharge port.

4. The pure water treatment device according to claim 3, characterized in that: The pure water treatment device further comprises an openable and closable second channel component, wherein the filter unit directly connected to the source of the liquid to be treated is defined as a primary filter unit; The collecting box is also connected to the liquid inlet end of the filter of the primary filter unit through the second channel assembly.

5. The pure water treatment device according to claim 4, characterized in that: The second channel component includes a second pipeline and a second opening and closing valve arranged on the second pipeline.

6. The pure water treatment device according to claim 1, characterized in that: The water quality detector is configured as a submersible turbidity sensor or a flow-through turbidity sensor.

7. The pure water treatment device according to claim 1, characterized in that: The collecting box is provided with a collecting box water quality detector.

8. The pure water treatment device according to claim 1, characterized in that: Each of the liquid storage tanks is provided with a liquid level sensor.

9. The pure water treatment device according to any one of claims 3 to 8, characterized in that: The liquid storage tank also includes an outlet; The filtering units are configured as multiple stages cascaded in sequence; The filtering unit directly connected to the source of the liquid to be treated is defined as a primary filtering unit, and the filtering units other than the primary filtering unit are defined as secondary filtering units; The liquid inlet end of the filter of the primary filter unit is connected to the source of the liquid to be treated; The liquid inlet end of the filter of each secondary filter unit is connected to the outlet of the liquid storage tank of the filter unit adjacent to the upstream side.

10. The pure water treatment device according to claim 9, characterized in that: A one-way valve is provided between the filter of the secondary filter unit and the inlet of the liquid storage tank.

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