Intelligent pollution discharge mechanism of pre-filter

By integrating a TDS sensor and a flow sensor into the pre-filter, and combining them with a microcontroller to automatically control the sewage discharge valve, the problem of inconvenience in manual sewage discharge in existing technologies is solved, achieving automated and precise sewage discharge, thus improving water quality and user experience.

CN224056874UActive Publication Date: 2026-03-31HAINING MEIKANG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-22
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing pre-filters require manual operation for waste removal, which leads to insufficient or inappropriate waste removal frequency, affecting water quality and resulting in a poor user experience.

Method used

By combining a TDS sensor and a flow sensor with a microcontroller, water quality and flow rate are automatically detected, the amount of purified water is calculated, and the sewage discharge valve is controlled to achieve precise automatic sewage discharge.

Benefits of technology

It has achieved an automated and precise sewage discharge process, improving water quality stability and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an intelligent sewage discharging mechanism of a pre-filter, and belongs to the technical field of filtering devices. The technical problems of water quality reduction, inconvenience and the like caused by insufficient pollution discharge or too low pollution discharge frequency in the prior art are solved. The intelligent pollution discharge mechanism of the pre-filter comprises a pollution discharge electric control valve arranged on a pollution discharge port of the pre-filter, a TDS sensor and a flow sensor are arranged on a water outlet of the pre-filter, and the pollution discharge electric control valve, the TDS sensor and the flow sensor are electrically connected with a microcontroller; the TDS sensor is used for obtaining the TDS value of water passing through the water outlet; and the flow sensor is used for measuring the instantaneous pulse frequency and pulse period of the water flow at the water outlet. The utility model has the advantages that the detection result of the sensor is accurate, pollution discharge can be automatically and accurately adjusted, the detachable structure is convenient to maintain and the like.
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Description

Technical Field

[0001] This utility model belongs to the technical field of filtration devices, and relates to pre-filter devices, and in particular to an intelligent sewage discharge mechanism for a pre-filter. Background Technology

[0002] A pre-filter, also known as a pre-water purifier, is primarily used to filter impurities from water. Pre-filters typically have a "T" shaped structure, with the inlet and outlet at the left and right ends of the top horizontal section, the main body and internal cylindrical filter screen at the bottom vertical section, and the drain outlet at the very bottom. Because impurities gradually accumulate in pre-filters during use, they need to be drained. This has led to extensive research and the development of various solutions.

[0003] In existing technologies, sewage is typically discharged by manually opening the drain valve. This method can lead to water quality degradation due to insufficient discharge or infrequent discharge. Furthermore, manual discharge is inconvenient and provides a poor user experience. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an intelligent sewage discharge mechanism for a pre-filter that can automatically discharge sewage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pre-filter intelligent sewage discharge mechanism, including a sewage discharge electrically controlled valve installed on the sewage discharge port of the pre-filter, a TDS sensor and a flow sensor installed on the outlet of the pre-filter, and the sewage discharge electrically controlled valve, the TDS sensor and the flow sensor being electrically connected to a microcontroller.

[0006] A TDS sensor is used to obtain the TDS value of water passing through the outlet.

[0007] A flow sensor is used to measure the instantaneous pulse frequency and pulse period of water flow at the outlet.

[0008] The TDS value of the water at the outlet is obtained by a TDS sensor, and the instantaneous pulse frequency and pulse period of the water flow at the outlet are obtained by a flow sensor. The data of both are transmitted to a microcontroller, which calculates the total clean water volume and determines the sewage discharge time based on the TDS value and the total clean water volume, thereby achieving the effect of precise automatic sewage discharge.

[0009] The total net water volume is calculated based on the instantaneous pulse frequency and pulse period, both of which are existing technologies.

[0010] In the aforementioned intelligent pre-filter sewage discharge mechanism, a water outlet pipe is provided on the water outlet, and the TDS sensor and flow sensor are installed on the water outlet pipe. The TDS sensor can monitor the TDS value of the water passing through the water outlet in real time, that is, the total amount of dissolved solids in the water. The flow sensor can measure the instantaneous pulse frequency and pulse period of the water flow.

[0011] In the aforementioned intelligent pre-filter sewage discharge mechanism, the TDS sensor is connected to the outlet pipe via a first detachable structure. The design of the first detachable structure allows the TDS sensor to be easily installed on the outlet pipe, and also facilitates disassembly and maintenance when needed.

[0012] In the aforementioned intelligent pre-filter sewage discharge mechanism, the first detachable structure includes a threaded interface on the outlet pipe that allows water flow in the outlet pipe to contact the TDS sensor. The TDS sensor is screwed to the threaded interface via a threaded connector. A sealing ring seals the threaded connector and the threaded interface, ensuring a tight connection and preventing water leakage, thereby guaranteeing that the TDS sensor can accurately measure water quality.

[0013] In the aforementioned intelligent pre-filter sewage discharge mechanism, the flow sensor is connected to the outlet pipe via a second detachable structure. The impeller of the Hall effect flow sensor is installed inside the outlet pipe. The detachable structure allows for the selection and installation of different types of flow sensors according to actual needs.

[0014] In the aforementioned intelligent pre-filter sewage discharge mechanism, the second detachable structure includes a flow sensor mounting base mounted on the flow sensor. The flow sensor mounting base secures the flow sensor with at least two bolts. The flow sensor and the flow sensor mounting base are sealed with a sealing ring. Fixing the flow sensor mounting base to the outlet pipe or related structure with at least two bolts ensures the stability of the flow sensor installation and avoids loosening or detachment caused by water flow impact or vibration.

[0015] In the aforementioned intelligent pre-filter discharge mechanism, the flow sensor includes any one of a Hall effect flow sensor, ultrasonic flow meter, electromagnetic flow meter, vortex flow meter, or Coriolis flow meter. The use of multiple types of flow sensors in the intelligent pre-filter discharge mechanism can adapt to different flow rate ranges and operating environments, enhancing the system's adaptability and flexibility.

[0016] In the aforementioned intelligent pre-filter drainage mechanism, the filter includes a connector whose bottom is connected to a filter bottle. The filter bottle contains a filter assembly, and a drainage electrically controlled valve is located at the bottom of the filter bottle. This valve includes a valve body and a manual / electric integrated controller. The filter employs an integrated design, resulting in a compact structure. The manual / electric integrated controller allows the filter to automatically or manually perform drainage operations as needed, improving the overall flexibility and reliability of the system.

[0017] In the aforementioned intelligent sewage discharge mechanism for the pre-filter, the drive end of the dual-purpose (manual and electric) controller is connected to the valve core of the valve body. The dual-purpose controller is fixed to the valve body housing via a third detachable structure and is electrically connected to a microcontroller. The third detachable structure includes several bolts securing the valve body and the dual-purpose controller. The electrical connection between the dual-purpose controller and the microcontroller allows the microcontroller to automatically control the opening and closing of the sewage discharge valve, achieving automatic control of the sewage discharge process. The bolted connection design allows the dual-purpose controller to adapt to different models and specifications of valve bodies, increasing the equipment's versatility and flexibility.

[0018] In the aforementioned intelligent sewage discharge mechanism of the pre-filter, a first annular groove is provided on the outer wall of the outlet. One end of the outlet pipe is fitted onto the outlet, and two radially symmetrical locking holes are provided on that end of the outlet pipe, which can communicate with the first annular groove. The two ends of a U-shaped pipe lock are inserted into the two locking holes, and the U-shaped pipe lock extends into the first annular groove. At least one sealing ring is provided between the outlet pipe and the outlet, and the sealing ring is embedded in a sealing ring groove on the outer wall of the outlet and / or the inner wall of the outlet pipe. Providing a sealing ring between the outer wall of the outlet and the outlet pipe can further enhance the sealing performance of the system and prevent malfunctions.

[0019] Compared to existing technologies, the advantages of this pre-filter's tool storage structure are: 1. The sensor is located at the outlet, ensuring accurate detection results. 2. It is equipped with a microcontroller for automatic and precise adjustment of wastewater discharge. 3. It employs multiple detachable structural designs for easy maintenance, replacement, and installation. Attached Figure Description

[0020] Figure 1 This is a front structural diagram provided by this utility model.

[0021] Figure 2 This is a schematic diagram of the rear structure provided by this utility model.

[0022] Figure 3 This is a top view structural diagram of the present invention.

[0023] Figure 4 This is a cross-sectional structural diagram provided by this utility model.

[0024] In the diagram, the components are: pre-filter 1, connector 11, outlet 2, TDS sensor 21, flow sensor 22, Hall effect flow sensor 221, outlet pipe 23, locking hole 231, U-shaped pipe lock 232, first detachable structure 24, threaded interface 241, threaded connector 242, second detachable structure 25, flow sensor mounting base 251, first annular groove 26, sealing ring groove 27, sealing ring 271, microcontroller 3, filter bottle 4, drain outlet 41, drain electric control valve 42, valve body 421, manual / electric dual-use integrated controller 422, filter assembly 43, and third detachable structure 44. Detailed Implementation

[0025] like Figures 1 to 4 As shown, the present invention provides an intelligent sewage discharge mechanism for a pre-filter, including a sewage discharge electrically controlled valve 42 installed on the sewage discharge port 41 of the pre-filter 1, and a TDS sensor 21 and a flow sensor 22 installed on the water outlet 2 of the pre-filter 1. The sewage discharge electrically controlled valve 42, the TDS sensor 21 and the flow sensor 22 are electrically connected to the microcontroller 3.

[0026] TDS sensor 21 is used to obtain the TDS value of the water passing through outlet 2;

[0027] Flow sensor 22 is used to measure the instantaneous pulse frequency and pulse period of the water flow at outlet 2.

[0028] In this embodiment, the microcontroller 3 determines the sewage discharge time based on the TDS value measured by the TDS sensor 21 and the total purified water volume calculated by the flow sensor 22. The microcontroller 3 then controls the opening and closing of the sewage discharge electronic valve 42 to achieve precise and automatic sewage discharge.

[0029] The formula for calculating the total net water volume based on the instantaneous pulse frequency and pulse period is: Total net water volume L = Instantaneous pulse frequency L / min × Pulse period (s) / 60.

[0030] The table below shows the correspondence between sewage discharge duration, total net water volume, and TDS value range.

[0031]

[0032] More specifically, the outlet 2 is equipped with an outlet pipe 23, and the outlet pipe 23 is equipped with a TDS sensor 21 and a flow sensor 22.

[0033] More specifically, the TDS sensor 21 is connected to the outlet pipe 23 via the first detachable structure 24.

[0034] More specifically, the first detachable structure 24 includes a threaded interface 241 provided on the water outlet pipe 23, which allows the water flow in the water outlet pipe 23 to contact the TDS sensor 21. The TDS sensor 21 is screwed to the threaded interface 241 via a threaded joint 242.

[0035] In this embodiment, the threaded joint 242 and the threaded interface 241 are sealed with a sealing ring to further enhance the sealing effect and avoid leakage problems.

[0036] More specifically, the flow sensor 22 is connected to the outlet pipe 23 via the second detachable structure 25.

[0037] In this embodiment, the flow sensor 22 is a Hall effect flow sensor 221. The impeller of the Hall effect flow sensor 221 is disposed inside the outlet pipe 23.

[0038] More specifically, the second detachable structure 25 includes a flow sensor mounting base 251 disposed on the flow sensor 22, which secures the flow sensor 22 with two bolts.

[0039] In this embodiment, the flow sensor 22 and the flow sensor mounting base 251 are sealed with a sealing ring to further enhance the sealing effect and avoid leakage problems.

[0040] More specifically, the pre-filter 1 includes a connector 11, the bottom of which is connected to the filter bottle 4. The filter bottle 4 contains a filter assembly 43, and the bottom of the filter bottle 4 is provided with a drain electric control valve 42. The drain electric control valve 42 includes a valve body 421 and a manual / electric dual-use controller 422.

[0041] More specifically, the drive end of the dual-use flashlight controller 422 is connected to the valve core of the valve body 421. The dual-use flashlight controller 422 is fixed to the outer shell of the valve body 421 through the third detachable structure 44. The dual-use flashlight controller 422 is electrically connected to the microcontroller 3.

[0042] In this embodiment, the third detachable structure 44 includes several bolts that fix the valve body 421 and the dual-use controller 422.

[0043] More specifically, the outer wall of the outlet 2 is provided with a first annular groove 26, one end of the outlet pipe 23 is sleeved on the outlet 2, and two radially symmetrical locking holes 231 are opened on the end of the outlet pipe 23 that can communicate with the first annular groove 26. The two ends of the U-shaped pipe lock 232 are inserted into the two locking holes 231, and the U-shaped pipe lock 232 extends into the first annular groove 26. Two sealing rings 271 are provided between the outlet pipe 23 and the outlet 2, and the sealing rings 271 are embedded in the sealing ring grooves 27 on the outer wall of the outlet 2 and the inner wall of the outlet pipe 23.

[0044] The working principle of this embodiment is that after water enters the pre-filter 1 and is filtered by the filter bottle 4, impurities are collected at the filter component 43 and the drain outlet 41, and the clean water flows to the outlet.

[0045] The TDS value is obtained by the TDS sensor 21 installed at the outlet 2, and the instantaneous pulse frequency and pulse period are obtained by the flow sensor 22.

[0046] The TDS sensor 21 and the flow sensor 22 transmit data to the microcontroller 3. The microcontroller 3 calculates the corresponding sewage discharge time based on the data information and controls the sewage discharge electric control valve 42 to discharge sewage.

[0047] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0048] Although this document uses numerous terms such as pre-filter, connector, outlet, TDS sensor, flow sensor, Hall effect flow sensor, outlet pipe, locking hole, U-shaped pipe lock, first detachable structure, threaded interface, threaded connector, second detachable structure, flow sensor mounting base, first annular groove, sealing ring groove, sealing ring, microcontroller, filter bottle, drain outlet, drain electric control valve, valve body, manual / electric dual-use controller, filter assembly, and third detachable structure, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A pre-filter intelligent blowdown mechanism, characterized in that, The utility model discloses a sewage electric control valve (42) is arranged on the sewage outlet (41) of the prefilter (1), the water outlet (2) of prefilter (1) is equipped with TDS sensor (21) and flow sensor (22), sewage electric control valve (12), TDS sensor (21) and flow sensor (22) are electrically connected with microcontroller (3); TDS sensor (21) is used to obtain the TDS value of water through the water outlet (2); Flow sensor (22) is used to measure the instantaneous pulse frequency and pulse period of water flow through the water outlet (2).

2. The pre-filter intelligent blowdown mechanism of claim 1, wherein, The water outlet (2) is provided with a water outlet pipeline (23), and the water outlet pipeline (23) is provided with the TDS sensor (21) and the flow sensor (22).

3. The pre-filter intelligent blowdown mechanism of claim 2, wherein, The TDS sensor (21) is connected to the water outlet pipeline (23) through a first detachable structure (24).

4. The pre-filter intelligent blowdown mechanism of claim 3, wherein, The first detachable structure (24) includes a threaded interface (241) arranged on the water outlet pipeline (23) and capable of allowing water flow in the water outlet pipeline (23) to contact the TDS sensor (21), and the TDS sensor (21) is screwed to the threaded interface (241) through a threaded joint (242).

5. The prefilter intelligent blowdown mechanism of claim 2, wherein, The flow sensor (22) is connected to the water outlet pipeline (23) through a second detachable structure (25).

6. The pre-filter intelligent blowdown mechanism of claim 5, wherein, The second detachable structure (25) includes a flow sensor mounting seat (251) arranged on the flow sensor (22), and the flow sensor mounting seat (251) is used to fix the flow sensor (22) through at least two bolts.

7. The prefilter intelligent blowdown mechanism of any one of claims 1-6, wherein, The flow sensor (22) includes any one of a Hall flow sensor (221), an ultrasonic flowmeter, an electromagnetic flowmeter, a vortex flowmeter, or a Coriolis flowmeter.

8. The prefilter intelligent blowdown mechanism of any one of claims 1-6, wherein, The prefilter (1) includes a connector (11), the bottom of the connector (11) is connected to a filter bottle (4), the filter bottle (4) is provided with a filter assembly (43) inside, the bottom of the filter bottle (4) is provided with the sewage electric control valve (42), and the sewage electric control valve (42) includes a valve body (421) and a flashlight dual-purpose integrated controller (422).

9. The prefilter intelligent blowdown mechanism of claim 8, wherein, The driving end of the flashlight dual-purpose integrated controller (422) is connected to the valve core of the valve body (421), the flashlight dual-purpose integrated controller (422) is fixed to the shell of the valve body (421) through a third detachable structure (44), and the flashlight dual-purpose integrated controller (422) is electrically connected to the microcontroller (3).

10. The pre-filter intelligent blowdown mechanism of claim 2 or 3 or 4 or 5, wherein, The outer wall of the water outlet (2) is provided with a first annular clamping groove (26), one end of the water outlet pipeline (23) is sleeved on the water outlet (2), two lock holes (231) capable of communicating with the first annular clamping groove (26) are formed on the end of the water outlet pipeline (23) in a radial direction, the two ends of a U-shaped pipe lock (232) are arranged in the two lock holes (231), the U-shaped pipe lock (232) extends into the first annular clamping groove (26), and at least one sealing ring (271) is arranged between the water outlet pipeline (23) and the water outlet (2), the sealing ring (271) is embedded in a sealing ring groove (27) in the outer wall of the water outlet (2) and / or the inner wall of the water outlet pipeline (23).