CN114917657A - Self-cleaning mechanism of filter core, water treatment facilities and system with fixed brush - Google Patents

Abstract

The invention discloses a filter element self-cleaning mechanism with fixed brushes, a water treatment device and a system, and the filter element self-cleaning mechanism is characterized in that it comprises a brush frame body (201) and a brush arranged on the outer wall of the brush frame (202); the brush frame is fixed on the fixture of the water treatment device; the brush frame is annular; the brush frame and the cylindrical filter element in the water treatment device are coaxially arranged; the brush frame The inner diameter of the filter element is larger than the outer diameter of the cylindrical filter element; when the filter element in the water treatment device rises and falls, the brush can contact the outer surface of the filter element to clean the outer wall of the filter element. The invention can realize automatic filter element cleaning.

Description

A filter element self-cleaning mechanism with a fixed brush, a water treatment device and a system

technical field

The invention relates to a filter element self-cleaning mechanism with a fixed brush, a water treatment device and a system.

Background technique

One of the core requirements of the intelligent water treatment device is the self-cleaning of the filter element. Self-cleaning can ensure the circulating operation of the filter element. Self-cleaning is to remove the solids or stains on the outer wall of the filter element and prevent the filter hole from being blocked.

Therefore, it is necessary to design a filter element self-cleaning mechanism and a water treatment device.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a filter element self-cleaning mechanism, a water treatment device and a system with a fixed brush, which can realize the self-cleaning of the outer wall of the filter element. .

The technical solution of the invention is as follows:

A filter element self-cleaning mechanism with a fixed brush, comprising a brush frame and a brush arranged on the outer wall of the brush frame;

The brush frame is fixed on the fixture of the water treatment device;

The brush frame is annular; the brush frame is coaxial with the cylindrical filter element in the water treatment device; the inner diameter of the brush frame is larger than the outer diameter of the cylindrical filter element; When the filter element is lifted and lowered, the brush can contact the outer surface of the filter element to clean the outer wall of the filter element.

There are multiple self-cleaning water spray holes in the brush frame. The self-cleaning water spray holes are connected to the external water pipes. The function of the water spray holes: when the brush is cleaned, the water spray can assist in cleaning the filter element. The brushes can be washed further, allowing the brushes to be recycled. Preferably, the water spray holes are for spraying clean water, or unfiltered water. Preferably, the self-cleaning water spray holes are arranged in a radial direction.

The brush includes a plurality of independent brush bodies, and all the brush bodies are inclined to the axis of the brush frame. The bristles of the brush may also cover the entire inner wall of the frame. The grouping is inclined to facilitate the discharge of sundries and avoid the accumulation of sundries.

The tilt angle is 30-60 degrees.

The tilt angle is 45 degrees.

The fixing part of the water treatment device is the top of the outer barrel of the water treatment device or the lower end of the boom, and the boom is connected to the beam.

A water treatment device, comprising a container, a filter element, a filter element lifting mechanism and a filter element self-cleaning mechanism;

The filter element self-cleaning mechanism is the aforementioned filter element self-cleaning mechanism;

The filter element lift drive mechanism is used to drive the filter element to move up and down relative to the container; the filter element is located in the container; the filter element self-cleaning mechanism is used to clean the outer surface of the filter element;

The water treatment device also includes a liquid inlet pipe, a liquid discharge mechanism and a waste discharge mechanism;

The liquid inlet pipe is used to add the water to be filtered into the container;

The drainage mechanism is used to discharge the water in the filter element;

The waste discharge mechanism is used to discharge the waste at the bottom of the container.

The water treatment device further includes a control module, which is used to control the filter element lifting and lowering drive mechanism, the liquid inlet pipe, the liquid discharge mechanism and the waste discharge mechanism.

The water treatment device further comprises a filter element rotation drive mechanism connected with the filter element, and the filter element rotation drive mechanism is controlled by the control module. Preferably, the control module is an MCU. Such as PLC, microcontroller, DSP, etc.

A water treatment system includes a plurality of the aforementioned water treatment devices; the plurality of water treatment devices are cascaded; the cascade means that the drainage of the previous water treatment device is used as the influent of the next water treatment device.

The outer circumference of the filter element is a filter screen, and the diameter of the mesh holes on the filter screen is between 0.1-2mm, which is set according to the specific application and requirements. If the filtering effect is good, you can choose a filter hole with a small diameter. If you want high filtering efficiency, you can Choose a filter hole with a large diameter. Or a plurality of water treatment devices are connected in series, and the filter hole diameter of the front stage is larger than the filter hole diameter of the latter stage. The filter screen can be steel wire mesh, preferably, the filter screen can also be produced by etching technology, which has high strength. The size of the filter hole in the figure is for illustration, and does not represent the actual proportional relationship between the filter hole and the equipment, which is hereby explained.

Beneficial effects:

The filter element self-cleaning mechanism of the present invention has the following characteristics:

Advantages description:

1. The outer wall of the filter element can be cleaned in a simple way (brush method);

2. When the brush is combined with the water spray, the cleaning efficiency can be increased.

3. The brushes are divided into multiple groups, and they are set obliquely for better cleaning effect.

In addition, the water treatment device has the following characteristics:

1. The water treatment device (water treatment unit) has a compact structure and an integrated structure; it occupies a small space; it is easy to configure flexibly;

2. Automatic operation; unattended; remote monitoring;

Under the control of the controller, the equipment can run automatically and realize unattended operation. After the controller is connected with a communication module, it can realize remote control. Remote monitoring; therefore, a high degree of automation and digitalization;

The simulated relay control system can also be used to realize the control, and the specific control is the existing mature technology.

3. Adopt modular concept and modular operation;

It can be flexibly paralleled or cascaded; modular operation is convenient for later maintenance;

4. The water treatment device (water treatment unit) has a self-cleaning function;

The whole process and structure are cleverly designed and have strong processing ability.

5. Ultraviolet sterilization and ozone sterilization can be further increased at the outlet pipe;

The invention can treat sewage and can also be used for purifying water in water plants, and has a wide range of applications;

The mesh number of the filter element can be set according to the needs. The larger the mesh number, the finer filter can be realized.

In addition, different chemicals are put into the water, and different treatments are performed.

The liquid level sensor that detects the liquid level in the container can be a magnetic sensor (Hall sensor) or a light sensor (such as an infrared radiation tube, etc.).

The core features of the water treatment device of the present invention are: automatic lifting (the function of lifting, cleaning the filter element and circulating action), self-cleaning, purifying waste water by filtration, and circulating action.

To sum up, the self-cleaning mechanism of the filter element with fixed brush, the water treatment device and the system of the present invention have a high degree of automation, can realize the refined treatment of waste water or water to be purified, are easy to implement, have a compact structure, and are convenient to use. Flexible movement and combination is a major improvement to the existing water treatment equipment, with huge social and economic benefits.

Description of drawings

Figure 1 is a schematic diagram of the brush and the filter element;

Fig. 2 is a schematic diagram of the position of the self-cleaning water spray holes on the brush;

Figure 3 is a schematic diagram of the oblique setting of the brush;

Fig. 4 is the structural representation of the water treatment device (when the rotary filter element descends);

Fig. 5 is the structural representation of the water treatment device (when the rotary filter element is raised);

Fig. 6 is the structural representation of the water treatment device (when the non-rotating filter element is lowered);

Figure 7 is a schematic structural diagram of a water treatment device (when the non-rotating filter element is raised);

8 is a schematic structural diagram of the filter element being arranged on the beam through the vertical pipe;

9 is a schematic structural diagram of a water treatment device with an external liquid pump;

Figure 10 is a schematic structural diagram of three cascaded water treatment devices with external liquid pumps;

Figure 11 is a schematic diagram (one) of the cooperation between the rotating brush and the filter element;

Figure 12 is a schematic diagram of the cooperation between the rotating brush and the filter element (Part 2);

13 is a schematic structural diagram of the rotating brush and the filter element disposed on the beam through the vertical pipe;

Figure 14 is a schematic diagram of a double filter element frame;

Figure 15 is a schematic diagram of a filter screen of a single filter element;

Figure 16 is a schematic diagram of a single filter element frame (front view);

Figure 17 is a schematic diagram of a single filter element frame (top view);

Figure 18 is a schematic diagram of the internal structure of the cascade of three water treatment devices (when the filter element is at the lowermost end);

Figure 19 is a schematic structural diagram of a cascade of water treatment devices (when the filter element is at the top end);

Figure 20 is a schematic structural diagram of a pneumatic rotary filter element (short-axis type);

Figure 21 is a schematic structural diagram of a pneumatic rotary filter element (long axis type);

Figure 22 is a schematic diagram of a single dosing module;

Figure 23 is a schematic diagram of the combination of 3 dosing modules;

Figure 24 is a schematic diagram of a liquid medicine bucket supplying 3 water treatment equipment;

Figure 25 is a schematic diagram of the cooperation between the dosing module and the water treatment device.

Label description: 1-flow sensor, 2-liquid pump, 3-suction pipe, 5-liquid inlet pipe, 6-rotating shaft, 7-filter element, 8-outer barrel, 9-maglev reverse water collector, 10-machine foot; 11- Discharge valve, 12- Discharge pipe, 13- Motor, 17- Electric control lift drive mechanism. 18-lifting platform; 20-beam, 21-sedimentation tank; 77-water inlet, 78-filter screen; 61-central pipe; 62-connecting rod, 63-vertical rod.

201-Brush frame, 202-Brush, 203-Brush self-cleaning mechanism drive motor, 204-Self-cleaning mechanism bearing, 205-Self-cleaning mechanism bracket, 206-Self-cleaning device gear, 207-Drain pipe, 208- Discharge pump, 209-self-cleaning water spray hole, 210-brush cleaning water pipe, 214-impeller, 215-bearing, 216-driving air nozzle.

220- Cartridge frame, 221- Center hole, 222- Support ring, 223- Support spokes.

251-dosing liquid pipe, 252-dosing liquid pump, 253-supporting plate, 254-dosing main pipe, 255-dosing liquid branch pipe, 256-dosing liquid barrel, 257-stirring shaft, 258-stirring blade, 259-draining pipe , 260-liquid pump support.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

Embodiment 1: As shown in Figures 1-5, a filter element self-cleaning mechanism with a fixed brush includes a brush frame (201) and a brush 202 disposed on the outer wall of the brush frame;

The brush frame is fixed on the fixture of the water treatment device;

The brush frame is annular; the brush frame is coaxial with the cylindrical filter element in the water treatment device; the inner diameter of the brush frame is larger than the outer diameter of the cylindrical filter element; When the filter element is lifted and lowered, the brush can contact the outer surface of the filter element to clean the outer wall of the filter element.

There are a plurality of self-cleaning water spray holes 209 in the brush frame, and the self-cleaning water spray holes are connected to the external water pipes. The function of the water spray holes: when the brush is cleaned, water spray can assist in cleaning, 3 cores, in addition, spray out The water can also further clean the brush, so that the brush can be recycled. Preferably, the water spray holes are for spraying clean water, or unfiltered water. Preferably, the self-cleaning water spray holes are arranged in a radial direction.

The brush includes a plurality of independent brush bodies, and all the brush bodies are inclined to the axis of the brush frame. The bristles of the brush may also cover the entire inner wall of the frame. The grouping is inclined to facilitate the discharge of sundries and avoid the accumulation of sundries.

The tilt angle is 45 degrees.

As shown in FIG. 8 , the fixing member of the water treatment device is the top of the outer tub of the water treatment device or the lower end of the boom, and the boom is connected to the beam.

As shown in Figure 4-7, a water treatment device includes a container, a filter element, a filter element lift drive mechanism and a filter element self-cleaning mechanism;

The filter element self-cleaning mechanism is the aforementioned filter element self-cleaning mechanism;

The filter element lift drive mechanism is used to drive the filter element to move up and down relative to the container; the filter element is located in the container; the filter element self-cleaning mechanism is used to clean the outer surface of the filter element;

The water treatment device also includes a liquid inlet pipe, a liquid discharge mechanism and a waste discharge mechanism;

The liquid inlet pipe is used to add the water to be filtered into the container;

The drainage mechanism is used to discharge the water in the filter element;

The waste discharge mechanism is used to discharge the waste at the bottom of the container.

The water treatment device further includes a control module, which is used to control the filter element lifting and lowering drive mechanism, the liquid inlet pipe, the liquid discharge mechanism and the waste discharge mechanism.

The water treatment device further comprises a filter element rotation drive mechanism connected with the filter element, and the filter element rotation drive mechanism is controlled by the control module. Preferably, the control module is an MCU. Such as PLC, microcontroller, DSP, etc.

Figure 4-5 is the case where the filter element rotates, and Figure 6-7 is the case where the filter element only lifts and does not rotate;

As shown in Figures 9-10, a water treatment system includes a plurality of the aforementioned water treatment devices; a plurality of water treatment devices are cascaded; cascade means that the drainage of the previous water treatment device is used as the inlet water of the next water treatment device. The liquid pump is arranged outside the container; it can be fixedly connected with the container, or it can be fixed on the ground or on the support without being connected with the container.

The liquid pumping mechanism includes a liquid pump 2 and a water pumping pipe 3 connected to the liquid pump. The lower end of the water pumping pipe is located at the bottom of the filter element, and is used to extract the treated water in the filter element; the liquid pump is preferably a self-priming water pump;

The discharge mechanism includes a discharge pipe 12 arranged at the bottom of the container for discharging waste materials and a discharge valve 11 provided on the discharge pipe;

The container is provided with a sensor for detecting the liquid amount or liquid depth in the container; the intelligent water treatment device also includes a control module, which is used to control the filter element lifting mechanism, the liquid inlet valve, the liquid pumping mechanism and the discharging action; the sensor and control module connected.

Fig. 8 is for the case where the container is a pool, and Figs. 4-7 are for the case where the container is an outer tub.

As shown in Figures 11-13, a filter element self-cleaning mechanism with a rotating brush includes a brush self-cleaning mechanism drive motor 203, a self-cleaning mechanism bearing 204, a self-cleaning mechanism bracket 205, a brush frame 201 and a The brush 202 on the outer wall of the frame; the drive motor of the brush self-cleaning mechanism is fixed on the fixing part of the water treatment device through the self-cleaning mechanism bracket; the brush frame is annular, and the brush frame is arranged on the bearing of the self-cleaning mechanism The bearing of the self-cleaning mechanism is fixed on the fixture of the water treatment device or the bracket of the self-cleaning mechanism; the outer periphery of the brush frame has convex teeth, and the self-cleaning device gear 26 provided on the rotating shaft of the driving motor of the brush self-cleaning mechanism is the same as the one described above. The protruding teeth meshing; the brush frame and the filter element whose cross section is circular in the water treatment device are arranged coaxially; the inner diameter of the brush frame is larger than the outer diameter of the cylindrical filter element; the brush self-cleaning mechanism drives Driven by the motor, the brush frame can rotate on the bearing of the self-cleaning mechanism. When the filter element in the water treatment device rises and falls, the brush can contact the outer surface of the filter element to clean the outer wall of the filter element.

The filter element is preferably a special-shaped filter element, and the special-shaped filter element is covered with a disc-shaped filter element. The introduction is as follows:

As shown in Figures 14-19, a capped disc-shaped filter element includes a filter element body and a central tube 61. The outer surface of the filter element body is a filter screen 78 with a plurality of filter holes, and the filter element body is buckled by two disc-shaped components The top of the filter element body is provided with a center hole, and the center pipe is inserted into the center hole so as to firmly connect the center pipe and the filter element body into a whole;

The central pipe is provided with a water inlet hole 77, and the water inlet hole is located inside the filter element body.

The bottom of the filter element body is provided with a center hole; the lower ends of the center pipe are inserted into the center holes at the top and bottom of the filter element body, the bottom of the filter element body is provided with a center hole which is closed to the outside of the filter element body, or the bottom of the filter element body is provided with a center hole on the With a layer of filter.

The filter element body also includes a filter element frame 220 that is lined with a filter screen.

The filter element frame is connected or integrally formed by a plurality of concentric supporting rings 222 and a plurality of outwardly radial supporting spokes 223 .

The upper end of the central tube is fixed on the lifting platform.

The upper end of the central tube is fixed on the rotating lifting platform.

Including 2 filter element bodies; 2 filter element bodies are connected in series on the central pipe.

In Fig. 18 and Fig. 19, only the filter element frame is shown, in order to show the filter screen outside the frame, it is hereby described.

The filter element is driven by a pneumatic mechanism to rotate; the introduction of the pneumatic drive mechanism:

As shown in Figure 1-2, a pneumatic rotary filter element includes a filter element body, a rotating shaft 6, an installation platform and a driving air nozzle 216;

The filter element body is fixed on the lower end of the rotating shaft, the installation platform is provided with a bearing 215, the upper end of the rotating shaft is inserted in the bearing, an impeller 214 is arranged on the rotating shaft or the filter element body, and the driving air nozzle 216 is arranged on the installation platform to drive the impeller to rotate , the driving air nozzle is connected with the air source through the air pipe, and the air pipe is provided with an air valve. The installation platform is a lifting platform, and the lifting platform is driven by a lifting mechanism. Such as hydraulic lifting mechanism, electric push rod lifting mechanism. The lifting platform is driven by a driving mechanism arranged on the outer cylinder, beam or bracket. Also includes a self-cleaning mechanism for cleaning the outer surface of the filter element.

The advantages of the pneumatic drive mechanism are: light structure, lighter structure than motor drive, more energy saving when lifting and lowering; easy to control.

Description of the working principle of the water treatment device:

Lift the filter element to the highest position, and the water to be treated enters the container through the water inlet pipe (the container is an outer cylinder or a pool). The liquid medicine causes flocs in the water to be treated. After the chemical is fully reacted, the filter element is lowered. During the descending process, water is added to rinse the outer wall of the filter element to realize the self-cleaning of the filter element. After the filter element is lowered, the water in the container is filtered by the filter element and then enters Inside the filter element, a pneumatic liquid pump draws out the filtered liquid; the waste remains in the container or on the outer wall of the filter element; after the water is drained, the filter element rises. During the rising process, the metal pipe enters the water to wash the filter element, and the bottom of the container discharges the material. The pump removes waste from the bottom of the container. After one cycle is completed, enter the next water treatment cycle.

The specific control manner and timing sequence are all in the prior art.

How the water treatment system works:

Multiple water treatment devices are connected in series, that is, cascaded, and the "purified water" formed by the filtration of the previous water treatment device enters the next stage for further treatment, so that more impurities in the water are filtered out, and the water quality is more in line with the relevant national standards.

Dosing mechanism, also known as water treatment solution adding mechanism (device)

One, a single dosing module

As shown in Figures 22 and 25, a water treatment solution adding device includes a drug dosing module, and the drug dosing module includes a drug solution bucket 256, a solution pipe, a drug solution pipe 251 and a drug solution pump 255; the drug solution bucket is used to store water Treatment solution, the water treatment solution is the solution of the water treatment agent powder dissolved in water, or the solution of the water treatment agent solution after further dilution; the liquid addition pipe is fixed on the liquid medicine barrel or on the fixture outside the liquid medicine barrel, and the specific fixed On the liquid pump support seat 260, it is used to add dilution water or liquid medicine to the liquid medicine bucket; a water valve is provided on the liquid addition pipe; The treatment container is a container of a water treatment device for water treatment based on a filter element; a drug solution pump is provided on the drug solution pipe. The liquid medicine barrel is provided with a sensor for detecting the amount of liquid in the liquid medicine barrel; the sensor is a pressure sensor or a liquid level sensor. The liquid pipe includes a liquid addition main pipe 254 and a liquid addition branch pipe 255; the liquid addition main pipe is communicated with the liquid addition branch pipe. The water valve is set on the main pipe or branch pipe for adding liquid. The liquid medicine barrel is provided with an electrically driven stirring mechanism. The water treatment agent added into the liquid medicine tank is bulk powder or medicine bag, and the liquid added by the liquid addition pipe is tap water for diluting the water treatment agent. The pack may be a pack containing a powder of the water treatment agent, or a liquid pack. The medicine is packed with a medicine bag of solid powder, and the packaging bag of the medicine bag is a material that dissolves in water. The medicine bag is put into the medicine bag in a mechanical cycle, which is the prior art.

A water treatment device, comprising a container, a filter element, a filter element lifting mechanism and a filter element self-cleaning mechanism;

The filter element lift drive mechanism is used to drive the filter element to move up and down relative to the container; the filter element is located in the container; the filter element self-cleaning mechanism is used to clean the outer surface of the filter element;

The water treatment device also includes a liquid inlet pipe, a liquid discharge mechanism and a waste discharge mechanism;

The liquid inlet pipe is used to add the water to be filtered into the container;

The drainage mechanism is used to discharge the water in the filter element;

The waste discharge mechanism is used to discharge the waste at the bottom of the container;

The water treatment device further includes a water treatment solution addition device, and the water treatment solution addition device is the aforementioned water treatment solution addition device.

Two, 3 dosing branches, sharing the liquid barrel

As shown in Fig. 24-25, a water treatment solution adding device includes a dosing module. The dosing module includes a liquid medicine tank 256, a liquid addition pipe, a liquid medicine pipe 251 and a liquid medicine pump 255; the liquid medicine tank is used to store water Treatment solution, the water treatment solution is the solution of the water treatment agent powder dissolved in water, or the solution of the water treatment agent solution after further dilution; the liquid addition pipe is fixed on the liquid medicine barrel or on the fixture outside the liquid medicine barrel, and the specific fixed On the liquid pump support base 260, it is used to add dilution water or liquid medicine to the liquid medicine bucket; a water valve is provided on the liquid addition pipe; The treatment container is a container of a water treatment device for water treatment based on a filter element; a drug solution pump is provided on the drug solution pipe. The liquid medicine barrel is provided with a sensor for detecting the amount of liquid in the liquid medicine barrel; the sensor is a pressure sensor or a liquid level sensor. The liquid pipe includes a liquid addition main pipe 254 and a liquid addition branch pipe 255; the liquid addition main pipe is communicated with the liquid addition branch pipe. The water valve is set on the main pipe or branch pipe for adding liquid. The liquid medicine barrel is provided with an electrically driven stirring mechanism. The water treatment agent added into the liquid medicine tank is bulk powder or medicine bag, and the liquid added by the liquid addition pipe is tap water for diluting the water treatment agent. The pack may be a pack containing a powder of the water treatment agent, or a liquid pack. The medicine is packed with a medicine bag of solid powder, and the packaging bag of the medicine bag is a material that dissolves in water. The medicine bag is put into the medicine bag in a mechanical cycle, which is the prior art.

The dosing module includes 3 dosing liquid pipes and 3 medical liquid pumps, each of which is provided with a medical liquid pump. This situation is especially suitable for the situation where three water treatment devices share one chemical. The liquid addition pipe includes the liquid addition main pipe 254 and the liquid addition branch pipe 255; the liquid addition main pipe is communicated with the liquid addition branch pipe;

A water treatment system, wherein a plurality of water treatment devices are cascaded;

The water treatment device includes a container, a filter element, a filter element lift drive mechanism and a filter element self-cleaning mechanism;

The filter element lift drive mechanism is used to drive the filter element to move up and down relative to the container; the filter element is located in the container; the filter element self-cleaning mechanism is used to clean the outer surface of the filter element; the water treatment device also includes a liquid inlet pipe, a liquid discharge mechanism and a waste discharge mechanism; Add the water to be filtered into the container;

The drainage mechanism is used to discharge the water in the filter element;

Cascading means that the drainage of the previous water treatment unit is used as the inlet water of the next water treatment unit.

The water treatment system further includes a water treatment solution addition device, and the water treatment solution addition device is the aforementioned water treatment solution addition device.

Three, 3 independent dosing modules

As shown in Figures 23 and 25, a water treatment solution adding device includes 3 dosing modules, and each dosing module includes a liquid medicine barrel 256, a liquid addition pipe, a chemical liquid addition pipe 251 and a liquid medicine pump 255; It is used to store water treatment solution. The water treatment solution is a solution of water treatment agent powder dissolved in water, or a solution of water treatment agent solution after further dilution; the liquid addition pipe is fixed on the liquid tank or a fixed object outside the liquid tank It is specifically fixed on the liquid pump support seat 260 for adding dilution water or liquid medicine to the liquid medicine bucket; a water valve is provided on the liquid addition pipe; the liquid medicine addition pipe transports the liquid medicine in the liquid medicine bucket to the water treatment In the container, the water treatment container is a container of a water treatment device for water treatment based on a filter element; a liquid medicine pump is arranged on the liquid medicine pipe. The liquid medicine barrel is provided with a sensor for detecting the amount of liquid in the liquid medicine barrel; the sensor is a pressure sensor or a liquid level sensor. The liquid pipe includes a liquid addition main pipe 254 and a liquid addition branch pipe 255; the liquid addition main pipe is communicated with the liquid addition branch pipe. The water valve is set on the main pipe or branch pipe for adding liquid. The liquid medicine barrel is provided with an electrically driven stirring mechanism. The water treatment agent added into the liquid medicine tank is bulk powder or medicine bag, and the liquid added by the liquid addition pipe is tap water for diluting the water treatment agent. The pack may be a pack containing a powder of the water treatment agent, or a liquid pack. The medicine is packed with a medicine bag of solid powder, and the packaging bag of the medicine bag is a material that dissolves in water. The medicine bag is put into the medicine bag in a mechanical cycle, which is the prior art.

That is, there are 3 dosing modules, which are used to provide chemical liquid for 3 water treatment devices. This situation is suitable when three water treatment devices use different water treatment chemicals.

The liquid addition pipe includes a liquid addition main pipe 254 and a liquid addition branch pipe 255; the liquid addition main pipe is communicated with the liquid addition branch pipe; the N water treatment devices share the liquid addition main pipe.

A water treatment system, wherein a plurality of water treatment devices are cascaded;

The water treatment device includes a container, a filter element, a filter element lift drive mechanism and a filter element self-cleaning mechanism;

The filter element lift drive mechanism is used to drive the filter element to move up and down relative to the container; the filter element is located in the container; the filter element self-cleaning mechanism is used to clean the outer surface of the filter element; the water treatment device also includes a liquid inlet pipe, a liquid discharge mechanism and a waste discharge mechanism; Add the water to be filtered into the container;

The drainage mechanism is used to discharge the water in the filter element;

Cascading means that the drainage of the previous water treatment unit is used as the inlet water of the next water treatment unit.

The water treatment system further includes a water treatment solution addition device, and the water treatment solution addition device is the aforementioned water treatment solution addition device.

The water treatment solution adding device also includes an MCU, the sensor is connected to the MCU, and the water valve, the liquid medicine pump, and the stirring mechanism are all controlled by the MCU.

The MCU is also connected with a temperature sensor and a heating mechanism, the temperature sensor is connected with the MCU, and the heating mechanism is controlled by the MCU, because the dissolution of some water treatment is related to temperature, or the work of some sensors (such as pressure sensors) is related to temperature.

Preferably, a flow meter connected to the MCU is provided at the outlet of the dosing liquid pipe for counting the solution entering the water treatment container.

The water treatment solution adding device has the following characteristics:

(1) The liquid medicine tank is installed on the ground or on the bracket, and it does not need to be raised, which is beneficial to the spatial arrangement of the entire water treatment equipment.

(2) Using the mode of medicine bag and diluent, a bag of medicine powder can be quantitatively matched with a bucket of water, which is easy to control the concentration. A liquid medicine concentration detection sensor is arranged in the liquid medicine tank to monitor the stability of the concentration of the water treatment medicine.

(3) Multiple dosing modules can directly correspond to multiple water treatment equipment, the corresponding relationship is clear, and it is easy to control independently.

(4) MC8 is used to control the whole process, with a high degree of automation.

(5) It has a stirring mechanism, which can accelerate the dissolution of the powder.

In conclusion, this water treatment solution adding device is rich in functions and easy to implement.

Claims (10)

1. A filter element self-cleaning mechanism with a fixed brush, characterized in that it comprises a brush frame (201) and a brush (202) arranged on the outer wall of the brush frame; The brush frame is fixed on the fixture of the water treatment device; The brush frame is annular; the brush frame is coaxial with the cylindrical filter element in the water treatment device; the inner diameter of the brush frame is larger than the outer diameter of the cylindrical filter element; When the filter element is lifted and lowered, the brush can contact the outer surface of the filter element to clean the outer wall of the filter element. 2. The filter element self-cleaning mechanism with a fixed brush according to claim 1, wherein a plurality of self-cleaning water spray holes (209) are provided in the brush frame, and the self-cleaning water spray holes are connected to the external water pipes. catch. 3 . The filter element self-cleaning mechanism with fixed brush according to claim 1 , wherein the brush includes a plurality of independent brush bodies, and all the brush bodies are inclined to the axis of the brush frame. 4 . 4 . The filter element self-cleaning mechanism with fixed brush according to claim 3 , wherein the inclination angle is 30-60 degrees. 5 . 5 . The filter element self-cleaning mechanism with fixed brush according to claim 4 , wherein the inclination angle is 45 degrees. 6 . 6. The filter element self-cleaning mechanism with a fixed brush according to any one of claims 1 to 5, wherein the fixing part of the water treatment device is the top of the outer barrel or the lower end of the boom of the water treatment device, and the said The boom is connected to the beam. 7. A water treatment device, characterized in that it comprises a container, a filter element, a filter element lift drive mechanism and a filter element self-cleaning mechanism; The filter element self-cleaning mechanism is the filter element self-cleaning mechanism according to any one of claims 1-6; The filter element lift drive mechanism is used to drive the filter element to move up and down relative to the container; the filter element is located in the container; the filter element self-cleaning mechanism is used to clean the outer surface of the filter element; The water treatment device also includes a liquid inlet pipe, a liquid discharge mechanism and a waste discharge mechanism; The liquid inlet pipe is used to add the water to be filtered into the container; The drainage mechanism is used to discharge the water in the filter element; The waste discharge mechanism is used to discharge the waste at the bottom of the container. 8 . The water treatment device according to claim 7 , further comprising a control module, which is used to control the filter element lift drive mechanism, the liquid inlet pipe, the liquid discharge mechanism and the waste discharge mechanism. 9 . 9 . The water treatment device according to claim 8 , further comprising a filter element rotation driving mechanism connected with the filter element, and the filter element rotation driving mechanism is controlled by a control module. 10 . 10. A water treatment system, characterized in that it comprises a plurality of water treatment devices according to any one of claims 7-9; a plurality of water treatment devices are cascaded; the cascade refers to the drainage of a previous water treatment device As the influent of the next water treatment device.

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