Filtering device and liquid detection system

Abstract

The application provides a filtering device and a liquid detection system, wherein the filtering device comprises: a raw liquid supply component for conveying raw liquid to be analyzed; a pure water supply component for conveying pure water; a converging pipeline, the output end of the raw liquid supply component and the output end of the pure water supply component are both connected to the input end of the converging pipeline; a filtering component, the liquid inlet of the filtering component is connected to the output end of the converging pipeline, and the liquid outlet of the filtering component is used for connecting a liquid analysis device; wherein the raw liquid supply component and the pure water supply component can be independently operated. The filtering device provided by the application can reduce manual operation in the sample collection and filtering process, is conducive to realizing online analysis and detection, reduces the possibility of sample pollution in the transfer process, reduces the possibility of liquid analysis device blockage and damage, provides protection for the smooth progress of the analysis and detection process, and improves the result accuracy of the analysis and detection of the raw liquid to be analyzed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection equipment, in particular to a filtering device and a liquid detection system. BACKGROUND

[0002] In chemical production activities, sometimes it is necessary to analyze and detect the liquid involved in the production process to provide data reference for subsequent production. However, in the current production process, the collection of liquid samples is mainly completed by manual operation, so on the one hand, the analysis and detection efficiency is low, and the analysis result lags behind, and the detected data is difficult to provide reliable reference for the continuous production operation; on the other hand, in the process of filtering the sample by using the filtering device, the sample needs to be put in manually, so the sample transfer process is also easy to be contaminated, which limits the further improvement of the accuracy of the analysis result. SUMMARY

[0003] The present application aims at least to solve one of the problems existing in the prior art or related art.

[0004] To this end, the first aspect of the present application provides a filtering device.

[0005] The second aspect of the present application provides a liquid detection system.

[0006] Therefore, according to the first aspect of the present application, a filtering device is provided, which comprises: a raw liquid supply assembly for conveying raw liquid to be analyzed; a pure water supply assembly for conveying pure water; a converging pipeline, the output end of the raw liquid supply assembly and the output end of the pure water supply assembly are both connected to the input end of the converging pipeline; a filtering assembly, the liquid inlet of the filtering assembly is connected to the output end of the converging pipeline, and the liquid outlet of the filtering assembly is used to connect a liquid analysis device; wherein the raw liquid supply assembly and the pure water supply assembly can be independently operated.

[0007] In a feasible implementation, the raw liquid supply assembly comprises: a raw liquid pipeline, the input end of the raw liquid pipeline is used to access the raw liquid to be analyzed, and the output end of the raw liquid pipeline is connected to the input end of the converging pipeline; a first metering pump arranged in the raw liquid pipeline and used to convey the raw liquid to be analyzed along the direction from the input end of the raw liquid pipeline to the output end of the raw liquid pipeline; a first valve body arranged between the input end of the raw liquid pipeline and the first metering pump.

[0008] In a feasible implementation, the pure water supply assembly comprises: a water supply pipeline, the input end of the water supply pipeline is used to access pure water, and the output end of the water supply pipeline is connected to the input end of the converging pipeline; a second metering pump arranged in the water supply pipeline and used to pump pure water along the direction from the input end of the water supply pipeline to the output end of the water supply pipeline; a second valve body arranged between the input end of the water supply pipeline and the second metering pump.

[0009] In an embodiment, the filter assembly comprises: a first container, the first container being formed with an open first accommodating cavity and a liquid outlet; a second container, the second container being formed with an open second accommodating cavity and a liquid inlet; a filter medium, the filter medium being detachably arranged between the first container and the second container; and a first driving part, the first driving part being configured to drive the second container to move relative to the first container so as to move the second container to be close to or away from the first container; wherein the filter assembly has a working state and a separation state; in the working state, the second container is connected to the first container, one side of the filter medium covers the open first accommodating cavity, and the other side of the filter medium covers the open second accommodating cavity; in the separation state, a space is formed between the first container and the second container.

[0010] In an embodiment, the filter assembly further comprises: a second driving part, the second driving part being connected to the filter medium and configured to drive the filter medium to move relative to the first container.

[0011] In an embodiment, the second driving part comprises: a support; a first roller rotatably arranged on the support, the filter medium being a filter paper strip, one end of the filter paper strip being connected to the first roller; and a second roller rotatably arranged on the support, the other end of the filter paper strip being connected to the second roller, the first roller and the second roller being arranged in a first direction, the first container being located between the first roller and the second roller; and a first driving member connected to the first roller and configured to drive the first roller to rotate.

[0012] In an embodiment, the second driving part further comprises: a second driving member connected to the support and configured to drive the support to move in a second direction so as to move the filter paper strip to be located between the first container and the second container or away from the first container and the second container; wherein the second direction intersects the first direction.

[0013] In an embodiment, the second driving part further comprises: a damping member connected to the second roller; a displacement detection member configured to detect displacement information of the filter paper strip in the first direction; and / or a paper pressing member configured to tension the part of the filter paper strip located between the first roller and the second roller.

[0014] In an embodiment, the filter device further comprises: a vacuum pump, the first container being formed with an exhaust port, the exhaust port being communicated with the first accommodating cavity, and the vacuum pump being communicated with the exhaust port; wherein the second container is formed with an air inlet.

[0015] According to a second aspect of the embodiments of the present application, a liquid detection system is provided, comprising: a raw liquid accommodating device configured to accommodate raw liquid to be analyzed; a pure water accommodating device configured to accommodate pure water; a filter device according to any one of the first aspect; a raw liquid supply assembly connected to the raw liquid accommodating device; a pure water supply assembly connected to the pure water accommodating device; and a photometric analysis device, an inlet of the photometric analysis device being connected to the liquid outlet.

[0016] Compared with the prior art, the present application at least has the following beneficial effects: the filtering device provided by the embodiment of the present application comprises a raw liquid supply assembly, a pure water supply assembly, a converging pipeline and a filtering assembly, wherein the raw liquid supply assembly and the pure water supply assembly can be operated relatively independently and are respectively used for conveying raw liquid to be analyzed and pure water, the output end of the raw liquid supply assembly and the output end of the pure water supply assembly are connected with the input end of the converging pipeline, the input end of the converging pipeline is connected with the liquid inlet of the filtering assembly, and the liquid outlet of the filtering assembly is used for being connected with a liquid analysis device. Therefore, based on the foregoing arrangement, in actual application, the raw liquid supply assembly of the filtering device provided by the embodiment of the present application can be used for being connected with a raw liquid containing device to access raw liquid to be analyzed and convey the raw liquid to be analyzed to the converging pipeline, and then the raw liquid to be analyzed is input to the filtering assembly for filtering through the converging pipeline, which can reduce manual operation in the process of sample collection and filtering, reduce the labor burden of workers, improve the execution efficiency of the sampling process, is conducive to realizing online analysis and detection, and reduces the possibility of sample pollution in the transfer process; the pure water supply assembly can be used for being connected with a pure water containing device to access pure water and convey the pure water to the converging pipeline, and then the pure water is input to the filtering assembly through the converging pipeline, and then on one hand, before the raw liquid to be analyzed is input to the filtering assembly, the pure water supply assembly can be used for conveying pure water in advance to clean the filtering assembly with the pure water, improve the cleanliness of the filtering assembly, further reduce the possibility of sample pollution, and is conducive to improving the accuracy of the analysis and detection result; on the other hand, in the process of conveying the raw liquid to be analyzed to the filtering assembly through the raw liquid supply assembly, the pure water supply assembly can be started at the same time, so that the pure water and the raw liquid to be analyzed are collected in the converging pipeline, and the pure water is used to dilute the raw liquid to be analyzed, which is conducive to improving the filtering efficiency and reducing the possibility of damage of the filtering device and the liquid analysis device; the filtering assembly can filter the liquid output by the converging pipeline, separate the insoluble substances in the raw liquid to be analyzed, reduce the possibility of blockage and damage of the liquid analysis device, provide further protection for the smooth progress of the analysis and detection process, and facilitate the determination of the solid content of the raw liquid to be analyzed, and improve the accuracy of the analysis and detection result of the raw liquid. BRIEF DESCRIPTION OF DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the illustrative implementations. The drawings are for purposes of illustration only and are not to be construed as limiting the application. Moreover, in the drawings, like reference numerals designate like parts throughout the several views, and in which:

[0018] Figure 1 a schematic structural view of the filtering device of one embodiment provided by the present application;

[0019] Figure 2Fig. 1 is a schematic structural diagram of a filter assembly according to an embodiment of the present application;

[0020] Figure 3 Fig. 2 is a schematic structural diagram of a second driving part according to an embodiment of the present application;

[0021] Figure 4 Fig. 3 is a schematic structural diagram of a sealing member according to an embodiment of the present application;

[0022] Figure 5 Fig. 4 is a schematic structural diagram of a liquid detection system according to an embodiment of the present application.

[0023] wherein, Figures 1 to 5 The correspondence between the reference signs and the component names is as follows:

[0024] 100 filter device; 200 stock solution containing device; 300 pure water containing device; 400 photometric analysis device; 500 waste liquid containing device;

[0025] 110 stock solution supply assembly; 120 pure water supply assembly; 130 converging pipeline; 140 filter assembly; 150 vacuum pump; 160 liquid discharge pump;

[0026] 111 stock solution pipeline; 112 first metering pump; 113 first valve body;

[0027] 121 water supply pipeline; 122 second metering pump; 123 second valve body;

[0028] 141 first container; 142 second container; 143 filter material; 144 first driving part; 145 second driving part; 146 sealing member; 147 support;

[0029] 1451 support member; 1452 first roller; 1453 second roller; 1454 first driving member; 1455 second driving member; 1456 damping member; 1457 displacement detection member; 1458 paper pressing member;

[0030] 1461 aperture plate; 1462 sealing ring;

[0031] 1401 liquid outlet; 1402 liquid inlet; 1403 gas outlet; 1404 gas inlet. DETAILED DESCRIPTION

[0032] Exemplary embodiments of the present application will be described in detail with reference to the drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0033] As shown in Figures 1 to 5 According to a first aspect of the embodiments of the present application, a filtering device 100 is provided, comprising: a raw liquid supply assembly 110 configured to deliver raw liquid to be analyzed; a pure water supply assembly 120 configured to deliver pure water; a converging pipeline 130, an output end of the raw liquid supply assembly 110 and an output end of the pure water supply assembly 120 are both connected to an input end of the converging pipeline 130; a filtering assembly 140, a liquid inlet 1402 of the filtering assembly 140 is connected to an output end of the converging pipeline 130, and a liquid outlet 1401 of the filtering assembly 140 is configured to be connected to a liquid analysis device; wherein the raw liquid supply assembly 110 and the pure water supply assembly 120 can be independently operated.

[0034] The filtering device 100 provided by the embodiments of the present application comprises a raw liquid supply assembly 110, a pure water supply assembly 120, a converging pipeline 130 and a filtering assembly 140. The raw liquid supply assembly 110 and the pure water supply assembly 120 can be independently operated and are respectively configured to deliver raw liquid to be analyzed and pure water. The output end of the raw liquid supply assembly 110 and the output end of the pure water supply assembly 120 are both connected to the input end of the converging pipeline 130. The input end of the converging pipeline 130 is connected to the liquid inlet 1402 of the filtering assembly 140. The liquid outlet 1401 of the filtering assembly 140 is configured to be connected to a liquid analysis device.

[0035] Therefore, based on the foregoing arrangement, in actual application, the raw liquid supply assembly 110 of the filtering device 100 provided by the embodiments of the present application can be connected to a raw liquid containing device 200 to access raw liquid to be analyzed, and deliver the raw liquid to be analyzed to the converging pipeline 130, and then deliver the raw liquid to be analyzed to the filtering assembly 140 through the converging pipeline 130 for filtering. This can reduce manual operation in the process of sample collection and filtering, reduce the labor burden of workers, improve the execution efficiency of the sampling process, facilitate online analysis and detection, and reduce the possibility of sample contamination during transfer.

[0036] It can be understood that in chemical production, liquid materials and slurry need to be analyzed and detected to understand the physicochemical parameters of raw materials or intermediate products. Taking the aluminum industry as an example, the raw liquid to be analyzed can be, but is not limited to, intermediate slurry or liquid in the production process, such as crude liquid, refined liquid, decomposition mother liquor, etc. Correspondingly, the raw liquid containing device 200 can be a device or equipment on the production line for containing or containing the raw liquid to be analyzed. In actual application, the input end of the raw liquid supply assembly can be connected to the raw liquid containing device 200, so that the filtering device 100 can obtain the raw liquid to be analyzed.

[0037] The pure water supply assembly 120 can be connected to the pure water storage device 300 to access the pure water and deliver the pure water to the converging pipeline 130, and then the pure water is poured into the filter assembly 140 through the converging pipeline 130. On the one hand, before the sample solution is poured into the filter assembly 140, the pure water can be delivered through the pure water supply assembly 120 in advance to clean the filter assembly 140 with the pure water, improve the cleanliness of the filter assembly 140, further reduce the possibility of sample contamination, and improve the accuracy of the analysis result. On the other hand, during the process of delivering the sample solution to the filter assembly 140 through the sample solution supply assembly 110, the pure water supply assembly 120 can be started at the same time to make the pure water and the sample solution converge in the converging pipeline 130, and the pure water can be used to dilute the sample solution, which is beneficial to improve the filtering efficiency and reduce the possibility of damage to the filtering device 100 and the liquid analysis equipment.

[0038] It can be understood that the aforementioned pure water storage device 300 can be a pure water preparation device, a pure water tank, a pure water tank, or other devices for preparing or storing pure water. The input end of the pure water supply assembly 120 can be connected to the aforementioned pure water storage device 300 to facilitate the filtering device 100 to obtain pure water.

[0039] It can be understood that some sample solutions can be in a solid-liquid mixed state, that is, the sample solution can carry solid insoluble substances, so that the sample solution needs to be filtered before liquid analysis. If the content of solid insoluble substances carried in the sample solution is high, the sample solution will directly enter the filter assembly 140, which will easily cause strong impact or blockage of the filter assembly 140. The filtering device 100 provided by the embodiment of the present application can disperse the aforementioned solid insoluble substances by diluting the sample solution with pure water during the process of supplying the sample solution to the filter assembly 140, thereby reducing the impact of the solid insoluble substances on the filter assembly 140 and reducing the possibility of damage or blockage of the filter assembly 140.

[0040] The filter assembly 140 can filter the liquid output from the converging pipeline 130, separate the insoluble substances in the sample solution, reduce the possibility of blockage and damage of the liquid analysis equipment, provide further protection for the smooth analysis and detection process, and facilitate the determination of the solid content of the sample solution. In actual application, the output end of the filter assembly 140 can be connected to the input end of the liquid analysis equipment, so that the filter assembly 140 can also supply the filtered liquid to the liquid analysis equipment, further reducing the labor intensity of the sample transfer process and reducing the possibility of sample contamination.

[0041] It can be understood that in actual production, different analysis and detection of the to-be-detected raw liquid are usually required based on different production needs, such as solid content detection, ion content detection, and the like. Correspondingly, some liquid analysis equipment often requires that the liquid input therein is in the form of a solution or a suspension carrying small particle size insoluble matter due to its own characteristics or test requirements, and the foregoing liquid analysis equipment can be, but is not limited to, a photometric analyzer, an ion chromatograph, and the like. Therefore, based on the arrangement of the filter assembly 140, the insoluble matter content of the to-be-analyzed raw liquid can be reduced, thereby ensuring the stable operation of the liquid analysis equipment and improving the accuracy of the analysis and detection results.

[0042] For example, taking the solid content of the to-be-detected raw liquid tested by the photometric analyzer as an example, since the photometric analyzer usually has a range limit, the photometric analyzer has certain requirements for the particle size and content of the insoluble matter carried by the liquid input therein. Correspondingly, the filtering precision of the filter assembly 140 can be set in combination with the range of the photometric analyzer, thereby ensuring the measurement accuracy of the photometric analyzer. In combination with the range of the photometric analyzer, the pure water supplied by the pure water supply assembly 120 can be used to dilute the to-be-analyzed raw liquid to adapt to or meet the requirements of the photometric analyzer. Then, the content data of the to-be-measured element in the raw liquid can be calculated according to the instrument detection result, thereby facilitating the guidance of production according to the analysis and detection result, such as adjusting the amount of the target element in the raw liquid. In combination with the actual solid content test requirements, the insoluble matter filtered out by the filter assembly 140 can also be collected and weighed to facilitate the analysis of the insoluble matter content in different particle size ranges in the to-be-analyzed raw liquid in combination with the test result of the photometric analyzer.

[0043] As shown in Figure 1 and Figure 5 In some examples, the raw liquid supply assembly 110 includes a raw liquid pipeline 111, an input end of the raw liquid pipeline 111 being used for accessing the to-be-analyzed raw liquid, and an output end of the raw liquid pipeline 111 being connected to an input end of the converging pipeline 130; a first metering pump 112 arranged in the raw liquid pipeline 111 and used for conveying the to-be-analyzed raw liquid along a direction from the input end of the raw liquid pipeline 111 to the output end of the raw liquid pipeline 111; and a first valve body 113 arranged between the input end of the raw liquid pipeline 111 and the first metering pump 112.

[0044] In the technical solution, the aforementioned raw solution supply assembly 110 can include a raw solution pipeline 111, a first metering pump 112, and a first valve body 113. The input end of the raw solution pipeline 111 is used to access the raw solution to be analyzed, that is, the input end of the raw solution pipeline 111 can be connected to the output end of the raw solution containing device 200. The output end of the raw solution pipeline 111 is connected to the input end of the converging pipeline 130, thereby facilitating the introduction of the raw solution to be analyzed to the converging pipeline 130, so as to mix and dilute the raw solution to be analyzed with pure water or further flow to the filtering assembly 140 for filtering. The first metering pump 112 is arranged on the aforementioned raw solution pipeline 111, thereby providing power for the flow of the raw solution to be analyzed, improving the supply efficiency of the raw solution to be analyzed, and facilitating the further improvement of the execution efficiency of the sampling process. At the same time, the supply amount of the raw solution to be analyzed can be controlled by the first metering pump 112, which is beneficial to control the sampling amount and facilitate the control of the pure water supply amount of the pure water supply assembly 120, realize the proportional dilution of the raw solution to be analyzed, reduce the difficulty of manual operation of diluting the raw solution to be analyzed, reduce the dilution proportion error caused by manual operation, and further improve the result accuracy of analysis and detection. The first valve body 113 is arranged on the aforementioned raw solution pipeline 111, thereby controlling the conduction or cutoff of the raw solution pipeline 111 by switching the opening and closing state of the first valve body 113, thereby improving the controllability of the sampling process of the raw solution to be analyzed, and facilitating the further control of the sampling amount.

[0045] Exemplarily, the aforementioned first valve body 113 can be, but is not limited to, a solenoid valve.

[0046] As shown in Figure 1 and Figure 5 , in some examples, the pure water supply assembly 120 includes a water supply pipeline 121, the input end of the water supply pipeline 121 is used to access pure water, and the output end of the water supply pipeline 121 is connected to the input end of the converging pipeline 130; a second metering pump 122 is arranged on the water supply pipeline 121 and is used to pump pure water along the direction from the input end of the water supply pipeline 121 to the output end of the water supply pipeline 121; and a second valve body 123 is arranged between the input end of the water supply pipeline 121 and the second metering pump 122.

[0047] In the technical solution, the foregoing pure water supply assembly 120 can include a pure water pipeline, a second metering pump 122, and a second valve body 123. The input end of the pure water pipeline is used to access pure water, that is, the input end of the pure water pipeline can be connected to the output end of the pure water containing device 300. The output end of the pure water pipeline is connected to the input end of the converging pipeline 130, thereby facilitating the guiding of the to-be-analyzed pure water to the converging pipeline 130, so as to dilute the to-be-analyzed stock solution with the pure water or clean the filter assembly 140 with the pure water. The second metering pump 122 is arranged on the foregoing pure water pipeline, thereby providing power for the flow of the pure water, improving the supply efficiency of the pure water, and being beneficial to further improving the execution efficiency of the filtering and cleaning processes. Meanwhile, the supply amount of the to-be-analyzed pure water can be controlled by the first metering pump 112, which is beneficial to cooperating with the control of the supply amount of the to-be-analyzed stock solution of the stock solution supply assembly 110, realizing the constant-ratio dilution of the to-be-analyzed stock solution, reducing the manual operation difficulty of the dilution of the to-be-analyzed pure water, reducing the dilution ratio error caused by the manual operation, and being beneficial to further improving the result accuracy of the analysis and detection. The second valve body 123 is arranged on the foregoing pure water pipeline, thereby controlling the conduction or cutoff of the pure water pipeline by switching the open and closed states of the second valve body 123, and further improving the controllability of the pure water supply process.

[0048] Exemplarily, the foregoing second valve body 123 can be, but is not limited to, an electromagnetic valve.

[0049] It can be understood that, as shown in Figure 1 and Figure 5 , the stock solution pipeline 111, the pure water pipeline, and the converging pipeline 130 can be connected through a three-way joint.

[0050] As shown in Figure 1 , Figure 2 and Figure 5 , in some examples, the filter assembly 140 includes a first container 141, the first container 141 being formed with an open first containing cavity and a liquid outlet 1401; a second container 142, the second container 142 being formed with an open second containing cavity and a liquid inlet 1402; a filter material 143, the filter material 143 being detachably arranged between the first container 141 and the second container 142; and a first driving part 144, the first driving part 144 being used to drive the second container 142 to move relative to the first container 141, so that the second container 142 approaches or moves away from the first container 141. The filter assembly 140 has a working state and a separation state. In the case that the filter assembly 140 is in the working state, the second container 142 is connected to the first container 141. One side of the filter material 143 covers the open first containing cavity, and the other side of the filter material 143 covers the open second containing cavity. In the case that the filter assembly 140 is in the separation state, a spacing is formed between the first container 141 and the second container 142.

[0051] In the technical solution, the filter assembly 140 can include a first container 141, a second container 142, a filter material 143, and a first driving part 144. The first container 141 and the second container 142 are both formed with open accommodating cavities. The liquid inlet 1402 of the filter assembly 140 is formed in the second container 142, and the liquid outlet 1401 is formed in the first container 141. The first driving part 144 is used to drive the second container 142 to move, so that the second container 142 is close to or away from the first container 141, to switch between the working state and the separated state of the filter assembly 140. When the filter assembly 140 is in the working state, the second container 142 can be connected to the first container 141 through the filter material 143. The filter material 143 is located between the first container 141 and the second container 142, and covers the openings of the first accommodating cavity and the second accommodating cavity on both sides, so that the first accommodating cavity and the second accommodating cavity can be separated by the filter material 143. When the to-be-analyzed raw liquid flows into the second accommodating cavity through the liquid inlet 1402, the filter material 143 can be further close to and filtered by the filter material 143. The insoluble substances in the to-be-analyzed raw liquid can be blocked by the filter material 143. The filtered liquid can further flow to the first accommodating cavity and flow to the liquid analysis device through the liquid outlet 1401. When the filter assembly 140 is in the separated state, the second container 142 is away from the first container 141 and forms a space between the first container 141 and the second container 142, so that the filter material 143 can be easily disassembled for replacement and cleaning, improving the convenience of replacing the filter material 143 of the filter assembly 140, and further reducing the difficulty of manual operation of the filter device 100.

[0052] It can be understood that the filter material 143 can be, but is not limited to, a filter screen, filter paper, filter cloth, etc.

[0053] Exemplarily, as Figure 1 , Figure 2 and Figure 5In actual applications, the filter assembly 140 can further include a support 147, the first container 141 and the first driving part 144 are fixedly arranged on the support 147 and are spaced apart, the second container 142 is connected to the first driving part 144 and is located between the first container 141 and the first driving part 144, the opening of the first containing cavity is arranged towards the opening of the second containing cavity, the first driving part 144 can drive the second container 142 to be close to or away from the first container 141, so that the opening of the second containing cavity is correspondingly close to or away from the opening of the first containing cavity, the filter material 143 is arranged between the first container 141 and the second container 142, so that when the first driving part 144 drives the second container 142 to be close to the first container 141, the end of the second container 142, in which the opening of the second containing cavity is formed, can abut against one side of the filter material 143, and the opening of the second containing cavity can be covered by the filter material 143, and the other side of the filter material 143 abuts against the end of the first container 141, in which the opening of the first containing cavity is formed, and covers the opening of the first containing cavity, correspondingly, when the first driving part 144 drives the second container 142 to be away from the first container 141, a space is formed between the second container 142 and the first container 141, so that the filter material 143 can be conveniently taken off from the first container 141 or the second container 142, and the convenience of replacing the filter material 143 is improved.

[0054] It should be noted that the filter assembly 140 can also have a cleaning state, in the case that the filter assembly 140 is in the working state, the second container 142 is connected to the first container 141, so that the opening of the first containing cavity is communicated with the opening of the second containing cavity, that is, in the cleaning state, the filter material 143 is taken off from between the first container 141 and the second container 142, in the case that the filter assembly 140 is in the cleaning state, the pure water supply assembly 120 can be used to supply pure water into the first containing cavity through the return pipeline and the liquid inlet 1402, the pure water can further flow to the second containing cavity and be discharged through the liquid outlet 1401, so that the interior of the first container 141 and the second container 142 can be conveniently cleaned by pure water.

[0055] In some possible examples, the first driving part 144 can be a linear servo motor or a hydraulic telescopic cylinder.

[0056] In some possible examples, the liquid inlet 1402, the opening of the second containing cavity, the opening of the first containing cavity and the liquid outlet 1401 can be sequentially arranged along the direction of gravity, and the position height of the liquid inlet 1402 is higher than the position height of the liquid outlet 1401, so that the flow efficiency of the liquid in the first container 141 and the second container 142 is improved, the filtering efficiency of the filter assembly 140 is improved, and the possibility of liquid backflow is reduced.

[0057] As Figure 1 ,Figure 4 and Figure 5 As shown in FIGS. 13, 14, 15 and 16, in some possible examples, the filter assembly 140 can further include a sealing member 146, which includes a hole plate 1461 and two sealing rings 1462. The hole plate 1461 has a first connecting groove and a second connecting groove formed on two opposite sides in the thickness direction of the hole plate 1461. The two sealing rings 1462 are arranged in the first connecting groove and the second connecting groove, respectively. The first container 141 has an open end of a first accommodating cavity arranged in the first connecting groove, and the hole plate 1461 is sealingly connected to the first container 141 through the sealing ring 1462. The filter element 143 abuts against the side of the hole plate 1461 where the second connecting groove is formed. When the filter assembly 140 is in the working state or the cleaning state, the open end of a second accommodating cavity of the second container 142 is located in the second connecting groove and is sealingly connected to the hole plate 1461 through the sealing ring 1462. Based on the arrangement of the sealing member 146, the leakage of the filter assembly 140 during use can be prevented, the use cleanliness of the filter assembly 140 can be improved, and the loss of liquid can be reduced.

[0058] As shown in FIGS. 13, 14, 15 and 16, in some examples, the filter assembly 140 further includes a second driving part 145 connected to the filter element 143 and configured to drive the filter element 143 to move relative to the first container 141. Figure 1 Figure 3 Figure 5 As shown in FIGS. 13, 14, 15 and 16, in some examples, the filter assembly 140 further includes a second driving part 145 connected to the filter element 143 and configured to drive the filter element 143 to move relative to the first container 141.

[0059] In this technical solution, the filter assembly 140 can further include the second driving part 145 connected to the filter element 143 and configured to drive the filter element 143 to move, so that the position of the filter element 143 relative to the first container 141 changes. Thus, after the filter assembly 140 performs the filtering operation during use, the filter assembly 140 can be in the separated state, and the second driving part 145 can drive the used filter element 143 to move away from the first container 141, so that the used filter element 143 is conveniently replaced. Correspondingly, the filter element 143 to be used can be arranged on the second driving part 145 and transferred to the direction close to the first container 141 by the second driving part 145, so that the filter element 143 to be used is arranged between the first container 141 and the second container 142. Thus, the arrangement of the second driving part 145 can further improve the convenience of replacing the filter element 143 of the filter device 100, reduce the manual operation during the analysis and detection process, and further improve the execution efficiency of the analysis and detection process.

[0060] As shown in FIGS. 13, 14, 15 and 16, in some examples, the filter assembly 140 further includes a second driving part 145 connected to the filter element 143 and configured to drive the filter element 143 to move relative to the first container 141. Figure 1 Figure 3 Figure 5 ​​​​As shown, in some examples, the second driving part 145 comprises a support 1451, a first roller 1452 rotatably arranged on the support 1451, the filter material 143 being a filter paper strip, one end of the filter paper strip being connected to the first roller 1452, a second roller 1453 rotatably arranged on the support 1451, the other end of the filter paper strip being connected to the second roller 1453, the first roller 1452 and the second roller 1453 being arranged at intervals along the first direction, the first container 141 being located between the first roller 1452 and the second roller 1453, and a first driving member 1454 connected to the first roller 1452 and configured to drive the first roller 1452 to rotate.

[0061] In this technical solution, the second driving part 145 can comprise the support 1451, the first roller 1452, the second roller 1453, and the first driving member 1454, wherein the first roller 1452 and the second roller 1453 are both rotatably arranged on the support 1451, and the first roller 1452 and the second roller 1453 are arranged at intervals, the first container 141 can be arranged between the first roller 1452 and the second roller 1453, the filter material 143 can be a filter paper strip, and the two ends of the filter paper strip are respectively connected to the first roller 1452 and the second roller 1453, so that the part of the filter paper strip between the first roller 1452 and the second roller 1453 can extend along the first direction and pass through the first container 141, and the first driving member 1454 can drive the first roller 1452 to rotate, so that when it is necessary to replace the filter paper, the first driving member 1454 can be operated to make the used part of the filter paper strip close to the first roller 1452 and correspondingly away from the first container 141, while making the part of the filter paper strip to be used close to the first container 141, thereby achieving replacement of the filter paper strip, further improving the replacement efficiency and convenience of the filter material 143, reducing manual operation when replacing the filter material 143, and being beneficial to improving the overall operation efficiency of the filtering device 100 and the execution efficiency of the analysis and detection process.

[0062] It can be understood that the part of the filter paper strip to be used can be wound on the second roller 1453, and as the amount of the filter paper strip used increases, the used part of the filter paper strip will be continuously wound on the first roller 1452, and the length of the filter paper strip can be greater than the interval distance between the first roller 1452 and the second roller 1453, so as to facilitate movement of the filter paper strip during use and winding of part of the filter paper strip on the first roller 1452 and / or the second roller 1453.

[0063] In some feasible examples, the first driving member 1454 can be a servo motor.

[0064] As shown in FIG. 1, the filtering device 100 comprises a first container 141, a second container 142, a filter material 143, and a driving part 140. Figure 1 , Figure 3 and Figure 5As shown, in some examples, the second driving part 145 further comprises:

[0065] The second driving member 1455 is connected to the support member 1451 and is configured to drive the support member 1451 to move in a second direction so as to position the filter paper strip between the first container 141 and the second container 142 or away from the first container 141 and the second container 142; wherein the second direction intersects the first direction.

[0066] In this technical solution, the second driving part 145 can further comprise a second driving member 1455 connected to the support member 1451. The second driving member 1455 can drive the support member 1451 to move in a second direction so as to position the filter paper strip between the first container 141 and the second container 142 or away from the first container 141 and the second container 142. Thus, during use, when the filter assembly 140 needs to be cleaned, the filter assembly 140 can be first placed in a separated state, and the second driving member 1455 can be controlled to drive the support member 1451 to move so as to position the filter paper strip away from the first container 141 and the second container 142. Then, the second container 142 can be moved towards the first container 141 to be in a cleaning state, so as to clean the first container 141 and the second container 142 with pure water. This can avoid the filter material 143 from blocking the pure water or from being wetted to affect the subsequent analysis and detection results. After cleaning, the filter assembly 140 can be first placed in a separated state, and the second driving member 1455 can be controlled to drive the support member 1451 to move so as to position the filter paper strip between the first container 141 and the second container 142. Thus, when the filter assembly 140 is in a working state, the filter paper strip can be used to cover the openings of the first receiving cavity and the second receiving cavity. Thus, the provision of the second driving member 1455 can further improve the convenience of use of the filter device 100 and the convenience of cleaning of the filter assembly 140, and can further reduce the manual operation during analysis and detection, and improve the execution efficiency and the analysis and detection accuracy.

[0067] It should be noted that, Figure 3 A1 is used to schematically represent the first direction, and A2 is used to schematically represent the second direction.

[0068] In some feasible examples, the second driving member 1455 can be a linear servo motor.

[0069] As Figure 1 , Figure 3 and Figure 5As shown, in some examples, the second driving part 145 further comprises: a damping member 1456 connected to the second roller 1453; and / or a displacement detection member 1457 for detecting displacement information of the filter paper strip along the first direction; and / or a paper pressing member 1458 for tensioning the part of the filter paper strip between the first roller 1452 and the second roller 1453.

[0070] In this technical solution, the second driving part 145 can further comprise the damping member 1456 connected to the second roller 1453, so that the damping member 1456 can be used to increase the movement resistance of the second roller 1453, and in the case that the rotation speed of the first roller 1452 is reduced or stopped, the second roller 1453 can be prevented from continuing to maintain a high rotation speed and generating a large rotation amount under the action of inertia, and the second roller 1453 can be prevented from feeding an excessive amount of filter paper strip to the first roller 1452 and the second roller 1453, which is beneficial to keeping the part of the filter paper strip between the first roller 1452 and the second roller 1453 in a relatively flat state, and further guarantees the covering effect of the filter paper strip on the openings of the first containing cavity and the second containing cavity, provides protection for the filtering effect of the filter assembly 140, and is beneficial to improving the movement stability of the filter paper strip and the second roller 1453.

[0071] In this technical solution, the second driving part 145 can further comprise the displacement detection member 1457 for detecting displacement information of the filter paper strip along the first direction, so that the displacement detection member can be used to detect the displacement amount of the filter paper strip along the first direction, which is beneficial to providing a reference basis for the control of the conveying amount of the filter paper strip during the replacement of the filter material 143, and improving the utilization rate of the filter paper strip.

[0072] In this technical solution, the second driving part 145 can further comprise the paper pressing member 1458 for tensioning the part of the filter paper strip between the first roller 1452 and the second roller 1453, so that the paper pressing member 1458 can be used to improve the flatness of the part of the filter paper strip between the first roller 1452 and the second roller 1453, which is beneficial to avoiding that the part of the filter paper strip between the first roller 1452 and the second roller 1453 is too long or entangled, and further improves the use stability and reliability of the filter assembly 140.

[0073] As shown, in some examples, the second driving part 145 further comprises: a damping member 1456 connected to the second roller 1453; and / or a displacement detection member 1457 for detecting displacement information of the filter paper strip along the first direction; and / or a paper pressing member 1458 for tensioning the part of the filter paper strip between the first roller 1452 and the second roller 1453. Figure 3 As shown, in some examples, the second driving part 145 further comprises: a damping member 1456 connected to the second roller 1453; and / or a displacement detection member 1457 for detecting displacement information of the filter paper strip along the first direction; and / or a paper pressing member 1458 for tensioning the part of the filter paper strip between the first roller 1452 and the second roller 1453.

[0074] As shown, in some examples, the second driving part 145 further comprises: a damping member 1456 connected to the second roller 1453; and / or a displacement detection member 1457 for detecting displacement information of the filter paper strip along the first direction; and / or a paper pressing member 1458 for tensioning the part of the filter paper strip between the first roller 1452 and the second roller 1453. Figure 1 and Figure 5As shown, in some examples, the filter device 100 further includes: a vacuum pump 150, a first container 141 having an exhaust port 1403 connected to a first receiving cavity, and the vacuum pump 150 being connected to the exhaust port 1403; wherein, a second container 142 has an air inlet 1404.

[0075] In this technical solution, the filtration device 100 may further include a vacuum pump 150. The first container 141 may have an exhaust port 1403 connected to the first receiving cavity, and the second container 142 may have an air inlet 1404 connected to the second receiving cavity. The vacuum pump 150 is connected to the aforementioned exhaust port 1403. Based on the aforementioned configuration, when the filtration assembly 140 is in the aforementioned working state, the aforementioned vacuum pump 150 can be turned on to evacuate the first receiving cavity. Gas can flow through the aforementioned air inlet 1404, the second receiving cavity, the filter material 143, the first receiving cavity, and the exhaust port 1403 in sequence through the filtration assembly 140, thereby creating a larger pressure gradient between the first receiving cavity and the second receiving cavity. This will cause the liquid in the second receiving cavity to flow into the first receiving cavity with higher efficiency, which is beneficial to improving the filtration efficiency of the filtration assembly 140 and further improving the execution efficiency of the analysis and detection process.

[0076] like Figure 1 and Figure 5 As shown, in some feasible examples, the filter assembly 140 may also include a drain pump 160 and an outlet valve. The outlet valve is located at the outlet 1401 and is used to open or close the outlet 1401. The drain pump 160 is connected to the outlet 1401 and is located between the liquid analysis device and the outlet 1401. The drain pump 160 can be used to pump the liquid flowing out of the outlet 1401 to the liquid analysis device, thereby improving the efficiency of the filter assembly 100 when supplying liquid to the liquid analysis device.

[0077] In some feasible examples, the aforementioned outlet valve can be a solenoid valve or a manual valve.

[0078] like Figure 5 As shown, a liquid detection system is proposed according to a second aspect of the embodiments of this application, comprising: a stock solution container 200 for containing a stock solution to be analyzed; a pure water container 300 for containing pure water; a filtration device 100 as described in any of the first aspects above, a stock solution supply component 110 connected to the stock solution container 200, a pure water supply component 120 connected to the pure water container 300; and a photometric analysis device 400, the inlet end of which is connected to the outlet 1401.

[0079] The liquid detection system provided by the embodiments of the present application comprises a raw liquid containing device 200, a pure water containing device 300, a photometric analysis device 400, and the filtering device 100 according to any one of the first aspect. The raw liquid supply assembly 110 of the filtering device 100 is connected to the raw liquid containing device 200, and the pure water supply assembly 120 is connected to the pure water containing device 300. The raw liquid containing device 200 and the pure water supply device are respectively used for containing raw liquid to be analyzed and pure water. The liquid inlet of the photometric analysis device 400 is connected to the liquid outlet 1401 of the filtering device, so that based on the above arrangement, the raw liquid to be analyzed in the raw liquid containing device 200 can flow to the photometric analysis device 400 through the filtering device 100 and be filtered by the filtering device 100, and the raw liquid to be analyzed can be diluted by using the pure water supply assembly 120, thereby greatly reducing the manual operation in the sample analysis and detection process, realizing online sampling and analysis of the raw liquid to be analyzed, and being beneficial to improving the raw liquid analysis efficiency and improving the reference value of the analysis and detection result to the production activities.

[0080] It can be understood that the photometric analysis device 400 can be used to detect the solid content of the liquid.

[0081] As shown in Figure 5 In some possible examples, the liquid detection system can further comprise a waste liquid containing device 500, and the output end of the photometric analysis device 400 is connected to the waste liquid containing device 500.

[0082] In some possible examples, the liquid detection system can further comprise a control device, and the photometric analysis device 400, the first driving part 144, the first valve body 113, the second valve body 123, the first metering pump 112, the second metering pump 122, the first driving member 1454, the second driving member 1455, the displacement detection member 1457, the damping member 1456, the vacuum pump 150, and the liquid discharge pump 160 are all signal-connected to the control device. The control device can be used to control the operation or shutdown of the above components. For example, the control device can store a program, and when the program is running, the control device can further control the operation of the above components. The program can be compiled according to the actual needs of the detection process and detection data, which is not limited here.

[0083] In addition, since the liquid detection system provided by the embodiments of the present application comprises the filtering device 100 according to any one of the first aspect, it has all the beneficial effects of the filtering device 100, which is not repeated here.

[0084] In the present application, the terms "first", "second", "third" are only used for descriptive purpose, and should not be understood as indicating or implying relative importance. The term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mount", "connect", "connection", "fix", and the like should be interpreted broadly, for example, "connection" can be fixed connection, or detachable connection, or integral connection; "connection" can be direct connection, or indirect connection through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0085] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, should not be understood as a limitation on the present application.

[0086] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment", and the like, mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0087] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A filtration device, characterized in that, include: The raw material supply component is used to deliver the raw material to be analyzed; Pure water supply components are used to transport pure water; The output end of the raw liquid supply component and the output end of the pure water supply component are both connected to the input end of the manifold. A filter assembly, wherein the inlet of the filter assembly is connected to the output end of the manifold, and the outlet of the filter assembly is used to connect to a liquid analysis device. The raw liquid supply component and the pure water supply component can operate independently; The filtering component includes: A first container, the first container having an open first receiving cavity and the liquid outlet; A second container, the second container having an open second receiving cavity and the liquid inlet; The filter media is detachably disposed between the first container and the second container; A first driving unit is used to drive the second container to move relative to the first container, so as to make the second container move closer to or away from the first container; The filtering component also includes: The second drive unit is connected to the filter material and is used to drive the filter material to move relative to the first container; The second drive unit includes: Support components; A first roller is rotatably mounted on the support member, and the filter material is a filter paper strip, one end of which is connected to the first roller. The second roller is rotatably mounted on the support member, and the other end of the filter paper belt is connected to the second roller. The first roller and the second roller are arranged at intervals along a first direction, and the first container is located between the first roller and the second roller. A first driving component is connected to the first roller and is used to drive the first roller to rotate; The second drive unit also includes: The second driving member, connected to the support member, is used to drive the support member to move along the second direction so that the filter paper strip is located between or away from the first container and the second container; The second direction intersects with the first direction.

2. The filtration device according to claim 1, characterized in that, The raw material supply component includes: The raw material pipeline has an input end for connecting the raw material to be analyzed and an output end connected to the input end of the manifold. A first metering pump is installed in the raw liquid pipeline to deliver the raw liquid to be analyzed along the direction from the input end of the raw liquid pipeline to the output end of the raw liquid pipeline. The first valve body is located between the input end of the raw liquid pipeline and the first metering pump.

3. The filtration device according to claim 1, characterized in that, The pure water supply component includes: A water supply pipeline, wherein the input end of the water supply pipeline is used to connect to the pure water, and the output end of the water supply pipeline is connected to the input end of the manifold; A second metering pump is installed in the water supply pipeline and is used to pump the pure water in the direction from the input end of the water supply pipeline to the output end of the water supply pipeline. The second valve body is located between the inlet end of the water supply pipeline and the second metering pump.

4. The filtration device according to any one of claims 1 to 3, characterized in that, in, The filter assembly has a working state and a separation state; When the filter assembly is in the working state, the second container is connected to the first container, one side of the filter material covers the opening of the first receiving cavity, and the other side covers the opening of the second receiving cavity; when the filter assembly is in the separated state, a gap is formed between the first container and the second container.

5. The filtration device according to claim 1, characterized in that, The second drive unit also includes: Damping element, connected to the second roller; and / or A displacement detection element, used to detect the displacement information of the filter paper strip along the first direction; and / or A paper tensioner is used to tension a portion of the filter paper belt located between the first roller and the second roller.

6. The filtration device according to claim 4, characterized in that, Also includes: A vacuum pump, wherein the first container has an exhaust port, the exhaust port is connected to the first receiving cavity, and the vacuum pump is connected to the exhaust port; The second container has an air inlet.

7. A liquid detection system, characterized in that, include: A stock solution container is used to contain the stock solution to be analyzed. A pure water container for holding pure water; The filtration apparatus as described in any one of claims 1 to 6, wherein the raw liquid supply component is connected to the raw liquid container, and the pure water supply component is connected to the pure water container; A photometric analysis device, wherein the inlet end of the photometric analysis device is connected to the outlet end.

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