A reference liquid preparation device for a water quality detection device, a water quality detection device

Abstract

The utility model discloses a kind of reference liquid preparation devices for water quality detection equipment, water quality detection equipment;Reference liquid preparation device integration has first fluid switching valve group, power pump, purification component;Among them, first fluid switching valve group includes first fluid control component, second fluid control component;First fluid control component one end connects standard liquid water inlet end, other end power pump is connected;Power pump other end connects purification component, standard liquid is formed reference liquid after being purified by power pump to purification component and is connected to the water quality analysis device of water quality detection equipment;Second fluid control component one end connects straight drinking water water inlet end, other end connects the water quality analysis device of water quality detection equipment;When double waterway water inlet, the water source that enters water quality analysis device is switched by the on-off of each valve body in first fluid switching valve group.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically to a reference solution preparation device and water quality testing equipment. Background Technology

[0002] Water quality testing plays a crucial role in environmental protection, industrial production, and drinking water safety. Accurate water quality test results are of great significance for protecting the ecological environment and human health. Water quality sensors are affected by various factors during long-term use, such as the adhesion of impurities in the water, temperature fluctuations, and sensor performance drift caused by chemical reactions, which can lead to deviations in water quality test results. Therefore, regular calibration of water quality sensors is an essential maintenance measure to ensure the reliability of monitoring results.

[0003] Traditional water quality testing equipment calibration systems often consist of multiple independent components, scattered across the board. This results in a loosely structured system, occupying a significant amount of space and increasing the difficulty of installation and maintenance. Furthermore, the complex wiring between components makes them prone to malfunctions, and troubleshooting and repairing any faulty component is challenging, greatly impacting the efficiency of water quality sensor calibration.

[0004] Therefore, it is necessary to provide a new approach to solve the aforementioned technical problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the primary objective of this utility model is to provide a reference solution preparation device for water quality testing equipment;

[0006] The technical solution of this utility model is summarized as follows:

[0007] The reference liquid preparation device integrates a first fluid switching valve group, a power pump, and a purification component.

[0008] The first fluid switching valve assembly includes a first fluid control component and a second fluid control component;

[0009] One end of the first fluid control component is connected to the standard solution inlet, and the other end is connected to the power pump; the other end of the power pump is connected to the purification component, and the standard solution is purified by the power pump to the purification component to form a reference solution, which is then connected to the water quality analysis device of the water quality testing equipment.

[0010] The second fluid control component is connected at one end to the drinking water inlet and at the other end to the water quality analysis device of the water quality testing equipment;

[0011] When water enters through dual water channels, the water source entering the water quality analysis device is switched by opening and closing each valve in the first fluid switching valve group.

[0012] Furthermore, the standard solution includes raw water or drinking water.

[0013] Furthermore, the reference solution preparation device also integrates a first fluid guiding component and a second fluid guiding component; wherein, one end of the first fluid guiding component is connected to the second fluid control component, and the other end is connected to the water quality analysis device of the water quality testing equipment; one end of the second fluid guiding component is connected to the purification component, and the other end is connected to the water quality analysis device of the water quality testing equipment.

[0014] Furthermore, when the first fluid control component is turned on / off, the power pump is turned on / off synchronously.

[0015] Furthermore, the purification component includes a reverse osmosis membrane filter element.

[0016] Furthermore, the reference solution preparation device also integrates a flow regulation component; wherein, one end of the flow regulation component is connected to the purification component, and the other end is connected to the drainage end of the water quality testing equipment.

[0017] Furthermore, the purification assembly also includes one or more of the following: CF filter, UF filter, PP cotton filter, activated carbon filter, and ceramic filter.

[0018] The second objective of this utility model is to provide a water quality testing device, comprising:

[0019] The reference solution preparation apparatus for water quality testing equipment as described above;

[0020] A water quality analysis device, wherein the water quality analysis device integrates a second fluid switching valve group and a water quality sensing component;

[0021] The second fluid switching valve group includes a third fluid control component, one end of which is connected to the reference liquid preparation device and the other end of which is connected to the water quality sensing component.

[0022] The main control unit, the first fluid switching valve group in the reference solution preparation device, the power pump, and the second fluid switching valve group in the water quality analysis device receive control signals from the main control unit and switch between drinking water and reference solution, thereby changing the water source entering the water quality analysis device.

[0023] Furthermore, the second fluid switching valve assembly also integrates a fourth fluid control component; wherein, one end of the fourth fluid control component is connected to the third fluid control component, and the other end is connected to the drinking water inlet or the water quality sensing component.

[0024] Furthermore, one end of the water quality sensing component is connected to the second fluid switching valve group, and the other end is connected to the drain end of the water quality detection equipment.

[0025] Furthermore, the water quality sensing component includes at least a TOC sensor.

[0026] Furthermore, the water quality sensing component also includes a TDS sensor and a temperature sensor.

[0027] Furthermore, the water quality analysis device also integrates a TDS sensor and / or a temperature sensor; wherein, one end of the TDS sensor and / or temperature sensor is connected to the water quality sensing component, and the other end is connected to the water outlet.

[0028] Furthermore, the water quality testing equipment also includes:

[0029] The display unit displays the water source of the water quality analysis device and the water quality data detected by the water quality sensing component.

[0030] The main control unit, the display unit, the reference solution preparation device, and the water quality analysis device are connected and communicate via the communication unit.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0032] This invention provides a reference solution preparation device and a water quality testing device for use in water quality testing equipment.

[0033] The reference liquid preparation device of this invention integrates the first fluid switching valve group, power pump, and purification components into a single unit, changing the traditional situation of scattered components in reference liquid preparation devices and making the entire device structure more compact. This not only reduces the footprint of the equipment and improves the space utilization rate, but also facilitates installation and maintenance under various space conditions.

[0034] This invention integrates purification components with a power pump and other parts. By controlling the on / off state of each valve in the first fluid switching valve group, it filters raw water / drinking water to form a reference solution which enters the water quality analysis device. This allows for switching of the water source entering the analysis device, eliminating the need for complex manual operation of multiple valves as in traditional methods. It also enables automatic calibration of the water quality sensing components in the analysis device using the reference solution, improving calibration efficiency and reducing the risk of errors due to human error.

[0035] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0037] Figure 1 The principle of the reference solution preparation device for water quality testing equipment described in Example 1 Figure 1 ;

[0038] Figure 2 The principle of the reference solution preparation device for the water quality testing equipment described in Example 1 Figure 2 ;

[0039] Figure 3 The principle of the reference solution preparation device for the water quality testing equipment described in Example 1 Figure 3 ;

[0040] Figure 4 The principle of the water quality testing equipment described in Example 2 Figure 1 ;

[0041] Figure 5 The principle of the water quality testing equipment described in Example 2 Figure 2 ;

[0042] Figure 6 The principle of the water quality testing equipment described in Example 2 Figure 3 ;

[0043] Figure 7 This is a schematic diagram of the assembly structure of the water quality testing equipment described in Example 2;

[0044] Figure 8 This is a schematic diagram of the system integration of the water quality testing equipment described in Example 2.

[0045] In the figure: 10, reference liquid preparation device; 101, first fluid control component; 102, second fluid control component; 103, power pump; 104, purification component; 105, first fluid guiding component; 106, second fluid guiding component; 107, flow regulation component;

[0046] 20. Water quality analysis device; 201. Third fluid control component; 202. Water quality sensing component; 203. Fourth fluid control component; 204. TDS sensor; 205. Temperature sensor. Detailed Implementation

[0047] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0048] In the accompanying drawings, shapes and dimensions may be enlarged for clarity, and the same reference numerals will be used in all figures to indicate the same or similar parts.

[0049] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, and lower are defined relative to the structure shown in the accompanying drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These are relative concepts and may vary depending on their location and usage. Therefore, these or other orientations should not be interpreted as restrictive terms.

[0050] Terms involving attachment, connection, etc. (e.g., “connection” and “attachment”) refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through an intermediate structure, as well as movable or rigid attachments or relationships, unless otherwise explicitly stated.

[0051] Example 1

[0052] This utility model embodiment provides a reference solution preparation device 10 for water quality testing equipment, the schematic diagram of which is shown below. Figure 1 As shown, the reference liquid preparation device 10 integrates a first fluid switching valve group, a power pump 103, and a purification component 104.

[0053] The first fluid switching valve group includes a first fluid control component 101 and a second fluid control component 102.

[0054] One end of the first fluid control component 101 is connected to the standard solution inlet, and the other end is connected to the power pump 103; the other end of the power pump 103 is connected to the purification component 104. The standard solution is purified by the power pump 103 and the purification component 104 to form a reference solution, which is then connected to the water quality analysis device 20 of the water quality testing equipment.

[0055] The second fluid control component 102 is connected at one end to the drinking water inlet and at the other end to the water quality analysis device 20 of the water quality testing equipment;

[0056] When water enters through dual water channels, the water source entering the water quality analysis device 20 is switched by opening and closing each valve in the first fluid switching valve group.

[0057] Specifically, it should be understood that the reference solution is the calibration water formed after the standard solution is purified by the purification component 104.

[0058] In a preferred embodiment, both the first fluid control component 101 and the second fluid control component 102 are two-way solenoid valves.

[0059] This invention, through the on / off combination of the first fluid control component 101 and the second fluid control component 10, can flexibly switch the water source entering the detection device 20, realizing detection modes for three different water sources: calibration water, raw water, and drinking water. This allows the water quality detection system to perform diversified detection according to different needs, comprehensively assessing the water quality status. The different detection modes work together to promptly detect changes in water quality and potential deviations in the water quality analysis device. The calibration water detection mode calibrates the water quality analysis device by comparing the water source flowing through it with the drinking water data stored in the device, ensuring the accuracy of the device in subsequent detections. The raw water and drinking water detection modes directly reflect the actual water quality situation, providing reliable data support for water quality monitoring and treatment.

[0060] In some embodiments, such as Figure 2 As shown, the reference solution preparation device 10 also integrates a first fluid guiding component 105 and a second fluid guiding component 106; wherein, one end of the first fluid guiding component 105 is connected to the second fluid control component 102, and the other end is connected to the water quality analysis device 20 of the water quality testing equipment; one end of the second fluid guiding component 106 is connected to the purification component 104, and the other end is connected to the water quality analysis device 20 of the water quality testing equipment.

[0061] The present invention, by setting the first fluid guiding component 105 and the second fluid guiding component 106 in the reference liquid preparation device 10, effectively prevents backflow of water, ensures that the water flows in a predetermined direction, guarantees normal cooperation between components and stability of water flow, improves the operating efficiency of the equipment, and avoids malfunctions and damage caused by backflow of water.

[0062] In some embodiments, the standard solution includes raw water or drinking water. Specifically, it should be understood that one end of the first fluid control component 101 can be connected to either the raw water inlet or the drinking water inlet.

[0063] In a preferred embodiment, when the first fluid control component 101 is in the open state and the second valve body 102 is in the closed state, the water source entering the water quality analysis device 20 is the standard solution inlet water.

[0064] Specifically, when the first fluid control component 101 is turned on and the second fluid control component is turned off, the water quality detection system activates the calibration water detection mode. The power pump 103 is turned on. It should be noted that the standard solution can be switched to raw water or drinking water depending on the actual application environment. The standard solution flows into the first fluid control component 101 through the inlet and reaches the power pump 103. The power pump 103 pumps the standard solution to the purification component 104 for filtration. The resulting reference solution is used as calibration water. The calibration water flows through the second fluid guide component 106 to the inlet water path of the water quality analysis device 20. The wastewater generated by filtration is discharged through the flow regulating component 107 to the outlet. When the calibration water flows through the water quality analysis device 20, the calibration water data obtained after detection by the water quality analysis device 20 is compared with the drinking water data stored in the water quality analysis device 20. Based on the comparison result, the water quality sensing component 203 in the water quality analysis device 20 is calibrated.

[0065] In calibration water testing mode, the data obtained after the calibration water is detected by the water quality sensor component 203 in the water quality analyzer 20 is compared with the stored drinking water data. Based on the comparison results, the water quality sensor component 203 is calibrated. This process ensures that the water quality analyzer 20 can accurately reflect the water quality status of the calibration water, improves the reliability of the test results, and provides users with more accurate water quality information.

[0066] In a preferred embodiment, when the first fluid control component 101 is in the closed state and the second valve body 102 is in the open state, the water source entering the water quality analysis device 20 is direct drinking water.

[0067] Specifically, when the first fluid control component 101 is off and the second valve body 102 is on, the water quality detection system activates the direct drinking water detection mode. The power pump 103 is off, and the direct drinking water flows into the second fluid control component 102 through the direct drinking water inlet and reaches the inlet water path of the water quality analysis device 20. After being detected by the water quality sensing component 203 in the water quality analysis device 20, the direct drinking water is discharged through the drain end.

[0068] In some embodiments, when the first fluid control component 101 is turned on / off, the power pump 103 is turned on / off synchronously.

[0069] This invention links the on / off states of the first fluid control component 101 and the power pump 103. When the first fluid control component 101 is turned on / off, the power pump 103 turns on / off synchronously. This avoids ineffective operation. When the first fluid control component 101 is turned on and the standard liquid flows in, the power pump 103 operates synchronously, preventing the power pump from running dry when there is no water intake, reducing energy consumption and equipment wear. When the first fluid control component 101 is turned off, the power pump 103 also stops working, avoiding unnecessary losses and improving equipment operating efficiency and lifespan. Furthermore, it ensures stable water flow. When the standard liquid flows in, the power pump 103 operates immediately, ensuring that the standard liquid passes through the purification component 104 at a suitable pressure and flow rate, maintaining a stable purification effect and avoiding unstable water flow due to asynchrony affecting the test results.

[0070] In some embodiments, the purification component 101 includes a reverse osmosis membrane filter.

[0071] The purification component 104 of this utility model includes a reverse osmosis membrane filter element, which has high-precision filtration capabilities and can effectively remove various impurities in water, such as dissolved salts, colloids, microorganisms and other tiny pollutants, converting raw water or drinking water into high-purity calibration water, providing accurate and reliable standard samples for the calibration of the water quality analysis device 20, thereby ensuring the high accuracy of water quality test results.

[0072] In some embodiments, such as Figure 3 As shown, the reference solution preparation device 10 also integrates a flow regulation component 107; wherein, one end of the flow regulation component 107 is connected to the purification component 104, and the other end is connected to the drain end of the water quality testing equipment.

[0073] In a preferred embodiment, the flow regulating component 107 used in this invention is a 300CC throttle valve.

[0074] The flow regulating component 107 of this invention plays a crucial role in flow control and pressure regulation during the purification process. By properly adjusting the throttle valve 107, the discharge rate and flow rate of wastewater generated by the purification component 104 can be controlled, maintaining stable pressure inside the purification component 104, ensuring the normal operation of purification components such as the reverse osmosis membrane filter, and improving filtration efficiency and effectiveness. Simultaneously, the flow regulating component 107 can effectively prevent damage to the equipment caused by excessively rapid wastewater discharge or abnormal pressure, extending the equipment's service life.

[0075] In some embodiments, the purification component 104 further includes one or more of the following: CF filter, UF filter, PP cotton filter, activated carbon filter, and ceramic filter.

[0076] In addition to the reverse osmosis membrane filter, the purification component 104 includes one or more of the following: CF filter, UF filter, PP cotton filter, activated carbon filter, and ceramic filter. These different types of filters work together to form a multi-stage filtration system. The PP cotton filter first filters out larger suspended solids and sediment in the water, reducing the burden on subsequent filters; the activated carbon filter adsorbs discoloration, odors, and organic matter in the water, improving the taste; the CF, UF, and ceramic filters further remove bacteria, colloids, and some viruses from the water, working synergistically with the reverse osmosis membrane filter to comprehensively improve the filtration effect and enhance the quality of the calibration water. The multi-stage filtration system also enhances the adaptability and stability of the filtration component, ensuring that the quality of the calibration water meets requirements even if the water quality changes compared to the standard solution, thus improving the reliability and practicality of the water quality testing equipment.

[0077] Example 2

[0078] This utility model provides a water quality testing device, such as... Figures 4-8 As shown, where, Figure 4 The schematic diagram of the water quality testing equipment is shown below. Figure 7 A schematic diagram of the assembly structure of the water quality testing equipment. Figure 8 A system integration diagram of the water quality testing equipment, including:

[0079] The reference solution preparation apparatus 10 for water quality testing equipment as described in Example 1;

[0080] Water quality analysis device 20, which integrates a second fluid switching valve group and a water quality sensing component 202.

[0081] The second fluid switching valve group includes a third fluid control component 201, one end of which is connected to the reference liquid preparation device 10 and the other end is connected to the water quality sensing component 202.

[0082] The main control unit, the valve bodies in the first fluid switching valve group in the reference liquid preparation device 10, the power pump 103, and the valve bodies in the second fluid switching valve group in the water quality analysis device receive control signals from the main control unit and switch between drinking water and reference liquid, thereby changing the water source entering the water quality analysis device 20.

[0083] In some embodiments, such as Figure 5 As shown, the water quality analysis device 20 also integrates a fourth fluid control component 203; wherein, one end of the fourth fluid control component 203 is connected to the third fluid control component 201, and the other end is connected to the raw water inlet.

[0084] In a preferred embodiment, when the first fluid control component 101 is in the off state and the second fluid control component 102 is in the off state, the reference liquid preparation device 10 is deactivated, the third fluid control component 201 is deactivated, and the fourth fluid control component 203 is activated, the water source entering the water quality analysis device 20 is raw water.

[0085] Specifically, when the first fluid control component 101 and the second fluid control component 102 are closed, the reference liquid preparation device 10 enters a shutdown state. When the third fluid control component 201 is closed and the fourth fluid control component 203 is open, the raw water passes through the fourth fluid control component 203 to the water quality sensing component 202 for detection and is then discharged through the drain end.

[0086] In a preferred embodiment, when the calibration water detection mode or the direct drinking water detection mode is enabled, the reference liquid preparation device 10 enters the enabled state when the first fluid control component 101 is turned on or the second fluid control component 102 is turned on. At this time, when the calibration water or direct drinking water flows through the water quality analysis device 20, the third fluid control component 201 is turned on and the fourth fluid control component 203 is turned off to close the raw water inlet water path, and the water source entering the water quality analysis device 20 is calibration water or direct drinking water.

[0087] In a preferred embodiment, when the water quality sensing component 202 includes only a TOC sensor, such as Figure 6 As shown, the water quality analysis device 20 also integrates a TDS sensor and / or a temperature sensor; wherein, one end of the TDS sensor 204 and / or the temperature sensor 205 is connected to the water quality sensing component 202, and the other end is connected to the water outlet.

[0088] In some embodiments, one end of the water quality sensing component 202 is connected to the second fluid switching valve group, and the other end is connected to the drain end of the water quality detection device.

[0089] In a preferred embodiment, the water quality sensing component 202 includes at least a TOC sensor to obtain the TOC parameters of the water source in the water quality sensing component.

[0090] In another preferred embodiment, the water quality sensing component 202 further includes a TDS sensor and a temperature sensor to obtain the TDS parameters and temperature parameters of the water source in the water quality sensing component, thereby obtaining comprehensive water quality parameter data.

[0091] In some embodiments, the water quality analysis device 20 further includes:

[0092] The display unit 40 displays the water source of the water quality analysis device 20 and the water quality data detected by the water quality sensing component 202.

[0093] The main control unit 30, the display unit 40, the reference solution preparation device 10, and the water quality analysis device 30 are connected and communicate via the communication unit 50.

[0094] The water quality testing equipment provided by this utility model adopts an integrated design. The reference solution preparation device integrates a first fluid switching valve group, a power pump, and purification components, while the water quality analysis device integrates a second fluid switching valve group, water quality sensor components, a TDS sensor, and / or a temperature sensor. This design saves installation space, making the equipment more compact for use in limited spaces, reduces connecting pipes and interfaces, lowers the probability of leakage, improves stability and reliability, and facilitates assembly and debugging, reducing production and maintenance costs. The main control unit controls each valve and power pump, allowing for flexible switching between raw water, reference solution, and drinking water entering the water quality analysis device. This enables multiple water quality testing modes to meet different testing needs and provide users with comprehensive and accurate water quality information. Multiple sensors within the water quality analysis device work collaboratively: the TDS sensor detects the total dissolved solids, the temperature sensor monitors the water temperature, and together with the water quality sensing components, they provide comprehensive and detailed multi-dimensional water quality testing. In addition, the display unit allows users to intuitively view water source information and water quality data, improving the user experience; the communication unit enables efficient and stable data transmission between various components inside the device, facilitating automated control and data processing, and also supports remote monitoring and management, allowing users to remotely obtain water quality testing data through external devices.

[0095] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A reference solution preparation device for water quality testing equipment, characterized in that, The reference liquid preparation device integrates a first fluid switching valve group, a power pump, and a purification component. The first fluid switching valve assembly includes a first fluid control component and a second fluid control component; One end of the first fluid control component is connected to the standard solution inlet, and the other end is connected to the power pump; the other end of the power pump is connected to the purification component, and the standard solution is purified by the power pump to the purification component to form a reference solution, which is then connected to the water quality analysis device of the water quality testing equipment. The second fluid control component is connected at one end to the drinking water inlet and at the other end to the water quality analysis device of the water quality testing equipment; When water enters through dual water channels, the water source entering the water quality analysis device is switched by opening and closing each valve in the first fluid switching valve group.

2. The reference solution preparation device for water quality testing equipment according to claim 1, characterized in that, The standard solution includes raw water or drinking water.

3. The reference solution preparation device for water quality testing equipment according to claim 1, characterized in that, The reference solution preparation device also integrates a first fluid guiding component and a second fluid guiding component; wherein, one end of the first fluid guiding component is connected to the second fluid control component, and the other end is connected to the water quality analysis device of the water quality testing equipment; one end of the second fluid guiding component is connected to the purification component, and the other end is connected to the water quality analysis device of the water quality testing equipment.

4. The reference solution preparation device for water quality testing equipment according to claim 1, characterized in that, When the first fluid control component is turned on / off, the power pump is turned on / off synchronously.

5. The reference solution preparation device for water quality testing equipment according to claim 1, characterized in that, The purification component includes a reverse osmosis membrane filter element.

6. The reference solution preparation device for water quality testing equipment according to claim 5, characterized in that, The reference solution preparation device also integrates a flow regulation component; wherein, one end of the flow regulation component is connected to the purification component, and the other end is connected to the drainage end of the water quality testing equipment.

7. The reference solution preparation apparatus for water quality testing equipment according to claim 5, characterized in that, The purification assembly also includes one or more of the following: CF filter, UF filter, PP cotton filter, activated carbon filter, and ceramic filter.

8. A water quality testing device, characterized in that, include: The reference solution preparation apparatus for water quality testing equipment as described in any one of claims 1 to 7; A water quality analysis device, wherein the water quality analysis device integrates a second fluid switching valve group and a water quality sensing component; The second fluid switching valve group includes a third fluid control component, one end of which is connected to the reference liquid preparation device and the other end of which is connected to the water quality sensing component. The main control unit, the first fluid switching valve group in the reference solution preparation device, the power pump, and the second fluid switching valve group in the water quality analysis device receive control signals from the main control unit and switch between drinking water and reference solution, thereby changing the water source entering the water quality analysis device.

9. The water quality testing equipment according to claim 8, characterized in that, The second fluid switching valve assembly also integrates a fourth fluid control component; wherein, one end of the fourth fluid control component is connected to the third fluid control component, and the other end is connected to the drinking water inlet or the water quality sensing component.

10. The water quality testing equipment according to claim 8, characterized in that, One end of the water quality sensing component is connected to the second fluid switching valve group, and the other end is connected to the drain end of the water quality detection equipment.

11. The water quality testing equipment according to claim 8, characterized in that, The water quality sensing component includes at least a TOC sensor.

12. The water quality testing equipment according to claim 11, characterized in that, The water quality sensing component also includes a TDS sensor and a temperature sensor.

13. The water quality testing equipment according to claim 8, characterized in that, The water quality analysis device also integrates a TDS sensor and / or a temperature sensor; wherein, one end of the TDS sensor and / or temperature sensor is connected to the water quality sensing component, and the other end is connected to the drain end of the water quality detection device.

14. The water quality testing equipment according to claim 8, characterized in that, Also includes: The display unit displays the water source of the water quality analysis device and the water quality data detected by the water quality sensing component. The main control unit, the display unit, the reference solution preparation device, and the water quality analysis device are connected and communicate via the communication unit.

Images