Suction filtration mechanism and device

Abstract

The utility model discloses a suction filtration mechanism and device, relates to the technical field of suction filtration, and adopts the technical scheme that the suction filtration mechanism comprises a suction filtration assembly which comprises a suction filtration bottle, a funnel and a suction pump; the hydrochloric acid assembly and the acid liquor pump can convey acid liquor of the hydrochloric acid supply unit to the funnel; the pure water assembly comprises a first water pump and a heating assembly; the water outlet end of the first water pump communicates with the water inlet end of the heating assembly. The heating assembly can heat pure water and then convey the pure water to the funnel; the waste liquid assembly comprises a waste liquid discharge unit and a waste liquid pump, and the waste liquid pump can discharge waste liquid in the suction filtration bottle to the waste liquid discharge unit. The suction filtration mechanism disclosed by the utility model has the beneficial effects that the suction filtration assembly, the hydrochloric acid assembly, the pure water assembly and the waste liquid assembly are subjected to integrated module design, so that the processes of automatic pure water heating and leaching, automatic quantitative hydrochloric acid solution filling, automatic suction filtration and automatic waste discharge can be completed. The automation of suction filtration and cleaning work is realized, the trouble of manual guarding is relieved, and the labor force is liberated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of filtration technology, concretely to a filtration mechanism and device. BACKGROUND

[0002] The existing free silicon dioxide filtration method generally uses scattered equipment such as a heating furnace, a beaker, a conical glass funnel, a waste liquid container and a negative pressure pump to build. The conical funnel is fixed on the waste liquid container, the waste liquid container is connected with the negative pressure pump, filter paper is placed in the conical funnel, a worker pours pure water into the beaker, and the pure water is heated to a suitable temperature by the heating furnace for standby. After the sample after the heating reaction is completed is poured into the conical funnel, the negative pressure pump is started to perform filtration, and then the pure water and hydrochloric acid solution are manually poured.

[0003] The whole process needs manual operation for multiple times, which is time-consuming and laborious, and when operating, the worker needs to contact the acid liquid and the heated pure water and other substances, so that safety hazards exist. UTILITY MODEL CONTENTS

[0004] In view of one of the deficiencies of the prior art, the utility model provides a filtration mechanism and device to solve the problem of mechanism integration in the free silicon dioxide filtration process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a filtration mechanism, comprising:

[0006] A filtration assembly, comprising a filtration bottle, a funnel and an air suction pump, the liquid outlet end of the funnel and the liquid inlet end of the filtration bottle are communicated, and the air inlet end of the air suction pump is communicated with the inside of the filtration bottle through a pipeline;

[0007] A hydrochloric acid assembly, comprising a hydrochloric acid supply unit and an acid liquid pump, the acid liquid pump can deliver the acid liquid of the hydrochloric acid supply unit to the funnel;

[0008] A pure water assembly, comprising a first water pump and a heating assembly, the water inlet end of the first water pump is communicated with a pure water supply source; the water outlet end of the first water pump is communicated with the water inlet end of the heating assembly; the heating assembly can heat the pure water and then deliver it to the funnel;

[0009] A waste liquid assembly, comprising a waste liquid discharge unit and a waste liquid pump, the waste liquid pump is communicated with the inside of the filtration bottle, and can discharge the waste liquid in the filtration bottle to the waste liquid discharge unit.

[0010] Preferably, the air suction pump is a vacuum pump;

[0011] The filtration assembly further comprises:

[0012] A filtration three-way valve is arranged between the air suction pump and the filtration bottle, the filtration three-way valve is an electromagnetic valve, the first port of the filtration three-way valve is communicated with the filtration bottle through a pipeline, and the second port is communicated with the air inlet end of the air suction pump.

[0013] Preferably, a negative pressure gauge is further arranged between the first port of the suction filter three-way valve and the suction filter bottle.

[0014] Preferably, the acid pump of the hydrochloric acid assembly is a peristaltic pump.

[0015] The hydrochloric acid assembly further comprises:

[0016] A hydrochloric acid waste liquid bottle for receiving waste hydrochloric acid liquid;

[0017] A second acid valve, which is a three-way electromagnetic valve, has a liquid inlet end in communication with the liquid outlet end of the acid pump, a first liquid outlet end in communication with the liquid inlet end of the funnel through a pipeline, and a second liquid outlet end in communication with the hydrochloric acid waste liquid bottle through a pipeline.

[0018] Preferably, the hydrochloric acid assembly further comprises:

[0019] A first acid valve, which is a three-way electromagnetic valve, is arranged between the liquid inlet end of the acid pump and the hydrochloric acid supply unit, has a first inlet end in communication with the hydrochloric acid supply unit, and has an outlet end in communication with the liquid inlet end of the acid pump.

[0020] Preferably, the hydrochloric acid assembly further comprises:

[0021] A hydrochloric acid burette, which has a liquid inlet end connected to the outlet end of the first acid valve and a liquid outlet end connected to the liquid inlet end of the second acid valve, and is arranged on the acid pump, has an internal volume corresponding to the volume of hydrochloric acid required in the suction filtration process.

[0022] Preferably, the pure water assembly further comprises:

[0023] A pure water container for containing pure water required in the suction filtration process;

[0024] A pure water three-way valve, which is a three-way electromagnetic valve, has a first port in communication with the outlet end of the first water pump, a second port in communication with the inside of the pure water container, and a third port in communication with the heating assembly.

[0025] Preferably, a liquid level sensor is arranged in the pure water container, and the pure water assembly further comprises:

[0026] A second water pump arranged between the pure water three-way valve and the heating assembly.

[0027] Preferably, the heating assembly comprises:

[0028] A heating element, which is an electric heating component;

[0029] A coil pipe arranged around the heating element, and in communication with the second water pump.

[0030] A heating sensor can feed back the temperature of the heating element.

[0031] A suction filtration device uses the suction filtration mechanism as described above.

[0032] Compared with the prior art, the suction filtration mechanism has the following beneficial effects: the suction filtration mechanism integrates the suction filtration assembly, the hydrochloric acid assembly, the pure water assembly and the waste liquid assembly in a modular design, and can complete the processes of automatic pure water heating and elution, automatic quantitative hydrochloric acid solution filling, automatic suction filtration and automatic waste discharge. The automation of suction filtration and cleaning work is realized, the human value is relieved, and the labor is liberated. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The structure principle of the embodiment of the present application is shown in the figure;

[0034] Figure 2 The overall structure of the embodiment of the present application is shown in the figure.

[0035] In the figure:

[0036] 1, suction filtration assembly; 11, suction filtration bottle; 12, funnel; 13, suction pump; 14, suction filtration three-way valve; 15, negative pressure gauge;

[0037] 2, hydrochloric acid assembly; 21, hydrochloric acid supply unit; 22, acid pump; 23, hydrochloric acid waste liquid bottle; 24, first acid valve; 25, second acid valve;

[0038] 3, pure water assembly; 31, first water pump; 32, heating assembly; 33, pure water three-way valve; 34, pure water container; 35, second water pump; 36, pure water supply source;

[0039] 4, waste liquid assembly; 41, waste liquid discharge unit; 42, waste liquid pump; 43, two-way valve,

[0040] 100, shell; 101, placement table; 102, cleaning pipe; 103, touch screen; 104, cooling fan; 105, power switch; 106, power connector; 107, fuse; 108, leakage protector. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0042] Please refer to Figure 1, this application provides the following technical solutions:

[0043] A filtration mechanism includes a filtration assembly 1, which is used for filtration operations. The filtration assembly 1 includes a filtration bottle 11, a funnel 12, and an air pump 13, wherein the air pump 13 is a vacuum pump. The funnel 12 is arranged on the filtration bottle 11, the liquid discharge end of the funnel 12 is connected to the liquid inlet end of the filtration bottle 11, and the air inlet end of the air pump 13 is connected to the upper position inside the filtration bottle 11 through a pipeline. A waste liquid assembly 4 is provided, which is connected to the filtration bottle 11 of the filtration assembly 1, and the waste liquid assembly 4 is used to extract and discharge the waste liquid in the filtration bottle 11. The waste liquid assembly 4 includes a waste liquid discharge unit 41 and a waste liquid pump 42. The waste liquid pump 42 is connected to the interior of the filtration bottle 11 and can discharge the waste liquid in the filtration bottle 11 to the waste liquid discharge unit 41. The waste liquid discharge unit 41 can be set up in different ways, such as directly connecting through a pipeline to discharge the waste liquid into a specific external pipeline, or the waste liquid discharge unit 41 can also use a waste liquid bottle or a waste liquid box to collect the waste liquid first and then process it later.

[0044] In addition to the filtration assembly 1, this mechanism also features a hydrochloric acid assembly 2 and a pure water assembly 3 for post-filtration cleaning. The hydrochloric acid assembly 2 is used to deliver hydrochloric acid to the funnel 12, removing any residue in the funnel 12 with the hydrochloric acid. The pure water assembly 3 is used to clean the funnel 12 again with pure water after the hydrochloric acid reaction. The hydrochloric acid assembly 2 includes a hydrochloric acid supply unit 21 and an acid pump 22. The acid pump 22 delivers acid from the hydrochloric acid supply unit 21 to the funnel 12. The hydrochloric acid supply unit 21 can be connected to an external hydrochloric acid source via a pipeline or directly via a hydrochloric acid bottle, requiring only replenishment based on hydrochloric acid consumption. The pure water assembly 3 includes a first water pump 31 and a heating assembly 32. The water inlet of the first water pump 31 is connected to the pure water supply source 36, while the water outlet of the first water pump 31 is connected to the water inlet of the heating assembly 32. The heating assembly 32 heats the pure water before delivering it to the funnel 12. The pure water supply source 36 can be connected to an external larger water supply source through a pipeline according to actual conditions, or a pure water bucket can be directly set up for supply.

[0045] Based on the above implementation plan, see Figure 1 The filtration component 1 also includes a filtration three-way valve 14 provided between the suction pump 13 and the filtration bottle 11. The filtration three-way valve 14 is a solenoid valve. The first port of the filtration three-way valve 14 is connected to the filtration bottle 11 through a pipeline, the second port is connected to the air inlet end of the suction pump 11, and the third port is used for air intake. You can directly choose not to connect the pipeline, or connect the pipeline and the filter screen. Figure 1The figure is for reference only. The three ends of the suction three-way valve 14 are r, p, and a respectively. When the suction is carried out, ra is connected, the vacuum pump 13 is used to pump air, and a negative pressure is formed inside the suction bottle 11, and the funnel 12 is filtered. When the work is completed, the suction three-way valve 14 is switched to pa for connection, and the air flow enters the suction bottle 11 to balance the pressure. A negative pressure gauge 15 is also provided between the first port of the suction three-way valve 14 and the suction bottle 11, and the negative pressure value during the suction is confirmed by the negative pressure gauge 15.

[0046] Based on the above embodiment, the acid pump 22 of the hydrochloric acid assembly 2 is a peristaltic pump. The hydrochloric acid assembly 2 is also provided with a hydrochloric acid waste bottle 23 for receiving hydrochloric acid waste liquid. A second acid valve 25 is provided on the inlet pipeline of the hydrochloric acid waste bottle 23. The second acid valve 25 is also a three-way solenoid valve. The liquid inlet of the second acid valve 25 is connected to the liquid outlet of the acid pump 22. The first liquid outlet of the second acid valve 25 is connected to the liquid inlet of the funnel 12 via a pipeline, and the second liquid outlet is connected to the hydrochloric acid waste bottle 23 via a pipeline.

[0047] by Figure 1 As shown in the example, the three ends of the second acid valve 25 are respectively com, no, and nc. The com end serves as the inlet of hydrochloric acid, the nc end is connected to the hydrochloric acid waste bottle 23, and the no end can output hydrochloric acid to the funnel 12. Through this structure, before injecting hydrochloric acid into the funnel 12, the second acid valve 25 can be adjusted to com-nc connection, and the acid pump 22 is started to discharge the hydrochloric acid remaining in the pipeline into the hydrochloric acid waste bottle 23. At the same time, new hydrochloric acid is pumped into the pipeline to ensure the subsequent cleaning effect. After the original residual hydrochloric acid in the pipeline is discharged, the second acid valve 25 is switched to com-no connection, and hydrochloric acid can be output to the funnel 12.

[0048] Based on the above embodiment, the hydrochloric acid component 2 is provided with a first acid liquid valve 24 between the liquid inlet end of the acid liquid pump 22 and the hydrochloric acid supply unit 21; the first acid liquid valve 24 is also a three-way solenoid valve, and the first inlet end of the first acid liquid valve 24 is connected to the hydrochloric acid supply unit 21, and the outlet end is connected to the inlet end of the acid liquid pump 22.

[0049] The same is Figure 1 For reference, the three terminals of the first acid valve 24 are terminal NO, terminal NC, and terminal COM. Terminal NO is connected to the hydrochloric acid supply unit 21, terminal COM is connected to the acid pump 22, and terminal NC can be left unconnected, or a combination of pipe filters can be used to ensure air intake. In this structure, the pipeline between the first acid valve 24 and the second acid valve 25 is a hydrochloric acid metering tube. The inlet end of the hydrochloric acid metering tube is directly connected to the outlet end of the first acid valve 24, and the outlet end of the hydrochloric acid metering tube is directly connected to the inlet end of the second acid valve 25. The acid pump 22 is mounted on the hydrochloric acid metering tube; the internal volume of the hydrochloric acid metering tube corresponds to the volume of hydrochloric acid required during the filtration process.

[0050] By the structure of this program, the hydrochloric acid that needs to be used each time is quantitatively carried out with the hydrochloric acid quantitative pipe. When the suction filtration is completed and the funnel needs to be cleaned, first the second acid valve 25 switches to the com-nc passage, and the first acid valve 24 is the com-no passage. The acid pump 22 works, and extracts hydrochloric acid solution and fills the hydrochloric acid quantitative pipe. The acid pump 22 stops working, and the first acid valve 24 switches to the com-nc passage. The acid pump 22 works, and now, no new hydrochloric acid is no longer introduced in the hydrochloric acid quantitative pipe. The hydrochloric acid therein is discharged in the hydrochloric acid waste liquid bottle 23, and the acid pump 22 stops working. The first acid valve 24 switches to the com-no passage again, and the second acid valve 25 switches to the com-no passage. The acid pump 22 timing is carried out and extracts hydrochloric acid solution, and stops working after the timing is completed. The first acid valve 24 switches to the com-nc passage, and the acid pump 22 starts, and the hydrochloric acid in the hydrochloric acid quantitative pipe is exported to the funnel 12, realizing the quantitative supply of hydrochloric acid.

[0051] Based on the above embodiment, the pure water assembly 3 also includes a pure water container 34, which is used to hold the pure water required for the filtration process. A pure water three-way valve 33 is provided at the inlet of the pure water container 34. The pure water three-way valve 33 is a three-way solenoid valve. The first port of the pure water three-way valve 33 is connected to the outlet of the first water pump 31, the second port is connected to the interior of the pure water container 34, and the third port is connected to the heating assembly 32. A liquid level sensor 341 is provided inside the pure water container 34. The liquid level sensor 341 is electrically connected to the pure water three-way valve 33 and the first water pump 31 to form a control circuit, which is used to control the replenishment of water in the pure water container 34.

[0052] The same is Figure 1 As shown in the example, the three terminals of a pure water three-way valve 33 are com, no, and nc. The com terminal is connected to a pure water container 34, the no terminal is connected to a first water pump 31, and the nc terminal is connected to a heating assembly 32. The provision of pure water container 34 enables quantitative control of the supply of pure water for cleaning. A second water pump 35 is also provided between the pure water three-way valve 33 and the heating assembly 32. The water inlet of the second water pump 35 is connected to the nc terminal of the pure water three-way valve 33, and the water outlet is connected to the water inlet of the heating assembly 32.

[0053] When pure water is needed to clean the funnel 12, the heating assembly 32 is first heated to a preset temperature. Then, the pure water three-way valve 33 is switched to the com-no position. The first water pump 31 pumps water from the pure water supply source 36 into the pure water container 34. The liquid level sensor 341 detects the water level and shuts off the first water pump 31. The pure water three-way valve 33 is switched to the com-nc position, and the second water pump 35 operates, pumping water from the pure water container 34 to the heating assembly 32. After being heated by the heating assembly 32, the water is used to clean the funnel 12.

[0054] On the basis of the above-mentioned embodiments, the heating assembly 32 comprises a heating element and a coil pipe, the heating element can be selected as an electric heating rod; the coil pipe is arranged around the heating element, the coil pipe is communicated with the second water pump 35, and the pure water used for cleaning the funnel 12 is heated when passing through the coil pipe. In addition, the heating assembly 32 is further provided with a heating sensor, the temperature of the heating element can be fed back through the heating sensor, and the heating sensor can be selected as a PT100 platinum resistance.

[0055] On the basis of the above-mentioned embodiments, the waste liquid assembly 4 is further provided with a two-way valve 43, the two-way valve 43 is selected as an electromagnetic valve and is arranged between the suction filter bottle 11 and the waste liquid pump 42.

[0056] On the basis of the above-mentioned embodiments, a four-way valve 5 is arranged on the output pipeline of the funnel 12 corresponding to the hydrochloric acid assembly 2 and the pure water assembly 3, the four-way valve 5 is also selected as an electromagnetic valve, and the final control of the hydrochloric acid assembly 2 and the pure water assembly 3 output to the funnel 12 is realized through the switching of the working state of the four-way valve 5.

[0057] The present scheme also provides a suction filtration device, see Figure 2 The suction filtration device uses the suction filtration mechanism as described above. In Figure 1 On the basis of the suction filtration mechanism shown, the suction filtration device can be provided with multiple suction filtration assemblies 1, mainly multiple suction filtration bottles 11 and funnels 12, so as to realize the effect that multiple suction filtration positions can work at the same time.

[0058] The other related structures in the suction filtration assembly 1, the hydrochloric acid assembly 2, the pure water assembly 3 and the waste liquid assembly 4 can be correspondingly provided with multiple sets. The hydrochloric acid and the pure water are separately supplied to each set of suction filtration bottles 11 and funnels 12.

[0059] Different from the multiple set scheme described above, only the suction filtration bottles 11 and the funnels 12 can be provided with multiple, and the other assemblies are shared by one set through pipeline connection and valve control. For example, a cleaning pipe is arranged corresponding to each funnel 12, and the cleaning pipe is respectively communicated with the hydrochloric acid assembly 2 and the pure water assembly 3 through the four-way valve 5. A hydrochloric acid pipe and a pure water pipe can also be arranged corresponding to each funnel 12, and the supply of the hydrochloric acid and the pure water is separated and output. The above-mentioned mode can be set according to actual needs.

[0060] See Figure 2The filter device further comprises a shell 100, the shell 100 is provided with a placing table 101, the placing table 101 is provided with four placing positions, one filter bottle 11 can be placed on each placing position, one funnel 12 is arranged corresponding to each filter bottle 11, and a cleaning pipe 102 is arranged on the shell 100 corresponding to each funnel 12. The cleaning pipe 102 is communicated with the hydrochloric acid assembly 2 and the pure water assembly 3 through an internal pipeline. In addition, a touch screen 103 is further arranged on the front side of the shell 100, which is used for operating the device. A cooling fan 104, a power switch 105, a power connector 106, a fuse 107, a leakage protector 108 and the like are arranged on the side of the device.

[0061] In the description of the present application and the embodiments thereof, it should be understood that the terms "top", "bottom", "height" 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 devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0062] In the present application and the embodiments thereof, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, can be electrically connected, or can be communicated; can be directly connected, or indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements. 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.

[0063] In the present application and the embodiments thereof, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0064] The foregoing disclosure provides many different embodiments or examples for implementing different structures of the present application. For purposes of simplicity of the present disclosure, the foregoing description has set forth various aspects of the present application in connection with specific examples. It should be apparent to those skilled in the art that certain aspects of the application can be practiced without all of the details of the above-described embodiments. In addition, it should be apparent that certain aspects of the application can be practiced using more advanced structures and techniques. For example, at times, the present application is described in the context of a single processor system. However, one of ordinary skill in the art will recognize that the mechanisms of the present application can advantageously be employed in a multi-processor system. Also, where appropriate, functions described herein can be performed in one or more of: hardware, software, firmware, digital electronic circuitry, or computer software, firmware or hardware, including the structures disclosed in this document and their structural equivalents, or in combinations of them. The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It will be apparent to those skilled in the art that the disclosed techniques can be employed in a variety of other formats, structures, and protocols without departing from the spirit or scope of the present application. In other instances, well-known structures have not been described in detail in order to avoid obscuring aspects of the present application.

[0065] While the preferred embodiments of the application have been described above, it will be recognized and understood that various modifications and changes can be made to the application by those skilled in the art that fall within the spirit and scope of the application. Accordingly, the appended claims are intended to embrace all such modifications and changes that fall within the spirit and scope of the application.

[0066] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A filtration mechanism, characterized in that: include: The filtration assembly includes a filtration bottle, a funnel and an air pump. The discharge end of the funnel is connected to the liquid inlet end of the filtration bottle, and the air inlet end of the air pump is connected to the interior of the filtration bottle through a pipeline. A hydrochloric acid component, comprising a hydrochloric acid supply unit and an acid pump, wherein the acid pump can deliver acid from the hydrochloric acid supply unit to the funnel; The pure water component includes a first water pump and a heating component. The water inlet of the first water pump is connected to the pure water supply source; the water outlet of the first water pump is connected to the water inlet of the heating component; the heating component can heat the pure water and then deliver it to the funnel; The waste liquid component includes a waste liquid discharge unit and a waste liquid pump. The waste liquid pump is connected to the interior of the suction filtration bottle and can discharge the waste liquid in the suction filtration bottle to the waste liquid discharge unit.

2. The filtration mechanism according to claim 1, wherein: The filtration assembly further comprises: The three-way suction valve is arranged between the suction pump and the suction bottle. The three-way suction valve is a solenoid valve. The first port of the three-way suction valve is connected to the suction bottle through a pipeline, and the second port is connected to the air inlet end of the suction pump.

3. The filtration mechanism according to claim 2, wherein: A negative pressure gauge is also provided between the first port of the suction filtration three-way valve and the suction filtration bottle.

4. The filtration mechanism according to claim 1, wherein: The hydrochloric acid assembly also includes: Hydrochloric acid waste liquid bottle, used to receive hydrochloric acid waste liquid; The second acid valve is a three-way solenoid valve, and the liquid inlet end of the second acid valve is connected to the liquid outlet end of the acid pump; the first liquid outlet end of the second acid valve is connected to the liquid inlet end of the funnel through a pipeline, and the second liquid outlet end is connected to the hydrochloric acid waste liquid bottle through a pipeline.

5. The filtration mechanism according to claim 4, characterized in that: The hydrochloric acid assembly also includes: The first acid valve is arranged between the liquid inlet end of the acid pump and the hydrochloric acid supply unit; the first acid valve is a three-way solenoid valve, the first inlet end of the first acid valve is connected to the hydrochloric acid supply unit, and the outlet end is connected to the inlet end of the acid pump.

6. The filtration mechanism according to claim 5, characterized in that: The hydrochloric acid component also includes: A hydrochloric acid metering tube, the liquid inlet of which is connected to the outlet of the first acid valve, and the liquid outlet of which is connected to the liquid inlet of the second acid valve; the acid pump is arranged on the hydrochloric acid metering tube; the internal volume of the hydrochloric acid metering tube corresponds to the volume of hydrochloric acid required in the filtration process.

7. The filtration mechanism according to claim 1, wherein: The pure water component also includes: Pure water container, which can hold the pure water needed in the filtration process; The pure water three-way valve is a three-way solenoid valve, the first port of which is connected to the outlet end of the first water pump, the second port is connected to the interior of the pure water container, and the third port is connected to the heating component.

8. The filtration mechanism according to claim 7, characterized in that: A liquid level sensor is provided in the pure water container; the pure water component further comprises: The second water pump is arranged between the pure water three-way valve and the heating component.

9. The filtration mechanism according to claim 8, characterized in that: The heating assembly comprises: Heating element, which is an electric heating element; a coil, disposed around the heating element, the coil being connected to the second water pump; The heating sensor can provide feedback on the temperature of the heating element.

10. A filtration device, characterized in that: Use the filtration mechanism described in any one of claims 1 to 9.

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