CN219964054U

CN219964054U - Medium filtering system

Info

Publication number: CN219964054U
Application number: CN202320872873.6U
Authority: CN
Inventors: 王世杰; 杨亚洲; 王子晨; 武卓媛; 吴慢慢
Original assignee: Beijing Kangjie Zhichen Water Treatment Co ltd
Current assignee: Beijing Kangjie Zhichen Water Treatment Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-11-07
Anticipated expiration: 2033-04-18

Abstract

The utility model discloses a media filtration system, comprising: the non-electric control valve device comprises a valve body and a control device, wherein the valve body is provided with a water inlet channel, a water outlet channel, a first channel and a second channel, the water inlet channel is communicated with the first channel and the second channel through water inlet control valves, the water outlet channel is communicated with the second channel through water outlet control valves, a regeneration control valve is arranged at the position of a water inlet on the water inlet channel, a backwashing blow-down valve is arranged on the first channel, a normal washing blow-down valve is arranged on the second channel, and the control device is used for controlling the opening and closing of each valve; and the filtering device is communicated with the first channel and the second channel of the non-electric control valve device and is used for filtering the medium to produce water, backwashing and forward washing. The utility model realizes automatic switching and circulation among water production, backwashing and forward washing by the medium itself through the control panel, and has the advantages of no need of manual control and high efficiency.

Description

Medium filtering system

Technical Field

The utility model relates to a water treatment system, in particular to a medium filtering system.

Background

The media filters and their control systems currently available in the market mainly have two control modes: one is manual control, namely, through manual regulation medium filter to produce water, backwash or forward washing state, this kind of mode amount of labour is big, receives personal factor (like workman's operation skill level, responsibility heart) influence greatly, often has the problem such as produce water, forward and backward washing effect is poor, life is shortened. The other is electronic control, namely, the valve opening and closing conditions of the medium filter are controlled through the program design of the singlechip, so that the medium filter can be switched among water production, backwashing and forward washing, and the system cannot normally run if the singlechip is required to be provided with a power supply and has the problems of electric appliance faults or power failure.

Disclosure of Invention

The utility model aims to provide a medium filtering system, which solves the problems that the water production and the forward and backward washing effects are influenced by personal factors, the electric appliance faults or power failure and the like in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a media filtration system comprising:

the non-electric control valve device comprises a valve body and a control device, wherein a water inlet channel, a water outlet channel, a first channel and a second channel are arranged on the valve body, the water inlet channel is communicated with the first channel and the second channel through water inlet control valves, the water outlet channel is communicated with the second channel through water outlet control valves, a regeneration control valve is arranged at the water inlet position on the water inlet channel, a backwashing drain valve is arranged on the first channel, a forward washing drain valve is arranged on the second channel, and the control device is used for controlling the opening and closing of the water inlet control valve, the water outlet control valve, the regeneration control valve, the forward washing drain valve and the backwashing drain valve;

and the filtering device is communicated with the first channel and the second channel of the non-electric control valve device and is used for filtering the medium to produce water, and backwashing and forward washing.

The utility model has the advantages that:

the utility model realizes automatic switching and circulation among water production, backwashing and forward washing by the medium (liquid, commonly referred to as water) by the control panel, does not need manual control, does not need external power supply, has high operation efficiency and is suitable for popularization.

Drawings

FIG. 1 is a schematic diagram of the composition of a media filtration system of the present utility model.

FIG. 2 is a schematic illustration of the on-line operation of the media filtration system of the present utility model.

Detailed Description

As shown in fig. 1, the present utility model provides a media filtration system comprising: the non-electric control valve device 10, the non-electric control valve device 10 comprises a valve body 101 and a control device, a water inlet channel 1A, a water outlet channel 1E, a first channel 1B and a second channel 1F are arranged on the valve body 101, the water inlet channel 1A is communicated with the first channel 1B and the second channel 1F through a water inlet control valve 20, the water outlet channel 1E is communicated with the second channel 1F through a water outlet control valve 30, a regeneration control valve 40 is arranged on the water inlet channel 1A at the position of a water inlet 11, a backwashing drain valve 50 is arranged on the first channel 1B, a forward washing drain valve 60 is arranged on the second channel 1F, and the control device is used for controlling the opening and closing of the water inlet control valve 20, the water outlet control valve 30, the regeneration control valve 40, the forward washing drain valve 60 and the backwashing drain valve 50; and the filtering device is communicated with the first channel 1B and the second channel 1F of the non-electric control valve device 10 and is used for filtering the medium to produce water, and backwashing and forward washing.

As shown in fig. 1, the water inlet channel 1A is further provided with an external source control valve 80, the external source control valve 80 and the regeneration control valve 40 share the same valve outlet, and the external source control valve 80 is used for online operation of a plurality of medium filtering systems of the utility model.

As shown in fig. 1, the filtering device comprises a tank body 100 filled with a filtering material 500, the tank body 100 is connected with a valve body 101, an upper water distributor 300 and a lower water distributor 400 are arranged in the tank body 100, a bottom opening of a middle core pipe 200 is connected with a top opening of the lower water distributor 400, the top opening of the middle core pipe 200 is arranged through the upper water distributor 300, the upper water distributor 300 is communicated with a first channel 1B, and the middle core pipe 200 is communicated with a second channel 1F.

Specifically, the valve body 101 is provided with a bottom opening 13, the tank body 100 is provided with a top opening 110, the top opening 110 of the tank body 100 is connected with the bottom opening 13 of the valve body 101, for example, in a screwed connection manner, a partition plate 14 is arranged in the bottom opening 13 of the valve body 101, the partition plate 14 divides the bottom opening 13 into a first bottom opening 1C and a second bottom opening 1D, the first bottom opening 1C is communicated with the first channel 1B and the upper water distributor 300, and the second bottom opening 1D is communicated with the second channel 1F and the middle core pipe 200. In the tank 100, the upper and lower water distributors 300 and 400 are disposed up and down. The upper water distributor 300 and the lower water distributor 400 comprise a shell forming an inner cavity, gaps for intercepting impurities (particles and the like) are formed in the shell, as shown in fig. 1, a plurality of vertical gaps 310 are formed in the upper water distributor 300, and a plurality of vertical gaps 410 are formed in the lower water distributor 400.

In practical application, the tank 100 is not filled with the filter material 500, but the filter material 500 should be higher than the lower water distributor 400. The media filtration system of the present utility model can be used to filter various media, typically liquids, most often water. The filter material 500 used is different, and for example, the filter material 500 may be quartz sand particles, activated carbon particles, quartz sand particles+anthracite particles, manganese sand particles, and the like, as needed.

As shown in fig. 1, the control device comprises a control panel 102, wherein the control panel 102 is communicated with a water inlet channel 1A and a pressure relief hole 1J through channels, and the control panel 102 is also communicated with a water inlet control valve 20, a water outlet control valve 30, a regeneration control valve 40, a forward washing blowoff valve 60 and a reverse washing blowoff valve 50 through channels for controlling the water inlet control valve 20, the water outlet control valve 30, the regeneration control valve 40, the forward washing blowoff valve 60 and the reverse washing blowoff valve 50 to be respectively communicated with the water inlet channel 1A or the pressure relief hole 1J.

When the media filtration system of the present utility model is operated alone or in tandem with other media filtration systems of the present utility model, the control device further comprises: a water outlet turbine 91, wherein the water outlet turbine 91 is arranged opposite to a water outlet nozzle 71 arranged at a valve outlet of the water outlet control valve 30 and is used for measuring the water yield, and the water outlet turbine 91 is connected with a control panel 102 and is used for driving the control panel 102 to switch to a backwashing state; a regeneration turbine 92, the regeneration turbine 92 is arranged opposite to the regeneration nozzle 72 arranged at the valve outlet of the regeneration control valve 40 and used for measuring the backwash or normal water quantity, the regeneration turbine 92 is connected with the control panel 102 and used for driving the control panel 102 to switch to the normal washing or water producing state; the external control valve 80 is not communicated with the control panel 102, and is always in a closed state under the action of water inlet pressure.

When the media filtration system of the present utility model is operated on-line with other media filtration systems of the present utility model but is not subsequently arranged as a host, as will be understood with reference to fig. 2, the control device further comprises: a regeneration turbine 92', the regeneration turbine 92' is arranged opposite to a regeneration nozzle 72 'arranged at a valve outlet of the regeneration control valve 40' and used for starting backwashing, metering backwashing or metering the water amount of positive washing, and the regeneration turbine 92 'is connected with the control disc 102' and used for driving the control disc 102 to switch to a backwashing, positive washing or water producing state; the outlet of the outlet control valve 30 'is provided with or without an outlet nozzle 71'; the external source control valve 80 'communicates with a control disc 102 of the media filtration system of the present utility model arranged in the preceding for initiating backwash by means of the regeneration turbine 92'.

In the present utility model, taking fig. 1 as an example, a plurality of water outlet turbines 91 are generally provided, all the water outlet turbines 91 form a group to drive the control panel 102 together for operation, and similarly, a plurality of regeneration turbines 92 are generally provided, all the regeneration turbines 92 form a group to drive the control panel 102 together for operation.

As shown in fig. 1, taking fig. 1 as an example, a forcing knob 103 is further installed on the control panel 102, so as to force the control panel 102 to rotate and switch to a backwashing state when the produced water is not qualified. And after the backwashing is finished, forward washing is carried out, and then the process is carried out circularly according to the sequence of water production, backwashing and forward washing.

In the utility model, the control panel is a mechanical control panel, which is driven by a water outlet turbine, a regeneration turbine or a forced knob to rotate, so as to control or switch whether the control hole communicated with each valve is communicated with a water inlet channel or a pressure relief hole.

In the present utility model, taking fig. 1 as an example, the water inlet control valve 20, the water outlet control valve 30, the regeneration control valve 40, the forward-washing drain valve 60, the reverse-washing drain valve 50 and the external source control valve 80 are all mechanical valves driven to operate by water pressure.

The water inlet control valve 20 comprises a valve housing, an inner cavity of the valve housing is divided into an upper cavity 2A and a lower cavity 2B by a piston, the cavities 2A and 2B are communicated with the control disc 102, a piston rod extending out of the valve housing and the water inlet channel 1A form two ports, namely a first port 201 and a second port 202, medium is selectively introduced into the cavities 2A and 2B to control states of the first port 201 and the second port 202, as shown in figure 1, the states of the first port 201 and the second port 202 are opposite, namely the cavity 2A is introduced with medium, the second port 202 is opened, the first port 201 is closed, the cavity 2B is introduced with medium, the first port 201 is opened, the second port 202 is closed, the first port 201 is used for controlling the communication and interception of the water inlet channel 1A and the first channel 1B, and the second port 202 is used for controlling the communication and interception of the water inlet channel 1A and the second channel 1F.

The water outlet control valve 30 comprises a valve housing, an inner cavity of the valve housing is divided into an upper cavity 3A and a lower cavity 3B by a piston, the cavities 3A and 3B are communicated with the control panel 102, a piston rod extending out of the valve housing and the water outlet channel 1E form a valve port, and the cavities 3A and 3B are alternatively filled with media to control the state of the valve port, as shown in figure 1, namely, the cavity 3A is filled with media, the valve port is closed, the cavity 3B is filled with media, the valve port is opened, and the valve port is used for controlling the communication and cutoff of the second channel 1F and the water outlet channel 1E. When the second channel 1F is communicated with the water outlet channel 1E, the medium is sprayed towards the water outlet turbine 91 through the water outlet nozzle 71 and flows out from the water outlet 12, and the water outlet turbine 91 rotates under the action of the medium spraying, so as to drive the control disc 102 to operate, thereby realizing the metering of the water yield or the timing of the water yield state.

The regeneration control valve 40 comprises a valve shell, a piston in the valve shell and the valve shell form a cavity 4A, the cavity 4A is communicated with a control panel 102, a piston rod extending out of the valve shell and a water inlet channel 1A form a valve port, and whether medium is introduced into the cavity 4A is used for controlling the state of the valve port, as shown in figure 1, i.e. the cavity 4A is used for introducing the medium, the valve port is opened, so that the water inlet channel 1A is communicated with a valve outlet of the regeneration control valve 40, and then the medium is sprayed towards a regeneration turbine 92 through a regeneration nozzle 72, the regeneration turbine 92 rotates under the action of the medium spraying, and the control panel 102 is driven to operate, so that the backwashing or the normal washing water amount is metered, or the backwashing or the normal washing state is clocked.

The backwash sewage draining valve 50 comprises a valve shell, a piston in the valve shell and the valve shell form a chamber 5A, the chamber 5A is communicated with a control panel 102, a piston rod extending out of the valve shell and a first channel 1B form a valve port, and the state of the valve port is controlled by whether the chamber 5A is filled with medium or not, as shown in figure 1, namely, the chamber 5A is filled with medium, the valve port is opened, so that the first channel 1B is communicated with a valve outlet of the backwash sewage draining valve 50, and backwash sewage draining is realized.

The forward-washing blowoff valve 60 comprises a valve casing, a piston in the valve casing and the valve casing form a chamber 6A, the chamber 6A is communicated with a control panel 102, a piston rod extending out of the valve casing and a second channel 1F form a valve port, and whether medium is introduced into the chamber 6A is used for controlling the state of the valve port, as shown in figure 1, i.e. the chamber 6A is used for introducing medium, the valve port is opened, so that the second channel 1F is communicated with a valve outlet of the forward-washing blowoff valve 60, and forward-washing blowoff is realized.

The external control valve 80 comprises a valve casing, a piston in the valve casing and the valve casing form a cavity 8A, the cavity 8A is communicated with a control panel 102 of another medium filtering system of the utility model when in online operation, a piston rod extending out of the valve casing and the water inlet channel 1A form a valve port, the state of the valve port is controlled by whether the cavity 8A is filled with medium or not, namely, the cavity 8A is filled with medium, the valve port is opened, the water inlet channel 1A is communicated with a valve outlet shared by the external control valve 80 and the regeneration control valve 40, then the medium is sprayed towards a regeneration turbine 92 through a regeneration nozzle 72, the regeneration turbine 92 rotates under the effect of medium spraying, and the self control panel 102 is driven to operate, so that the self-backwashing state is switched (understood by referring to fig. 2).

As shown in fig. 1, the process of the independent operation of the media filtration system of the present utility model is:

when water is produced, under the control of the control panel 102, the medium (water) flowing into the water inlet 11 enters the chamber 2B of the water inlet control valve 20 and the chamber 3B of the water outlet control valve 30 through the control panel 102, water pressure is generated, other chambers of the valves are communicated with the pressure release hole 1J, and no water pressure exists, wherein the chamber 8A of the external source control valve 80 is not communicated with the control panel 102 and is in a closed state (the same applies below). Then, the piston of the water inlet control valve 20 moves upward under the action of the water pressure, the first valve port 201 is opened, the second valve port 202 is closed, the piston of the water outlet control valve 30 moves upward under the action of the water pressure, the valve port of the water outlet control valve 30 is opened, and the second passage 1F communicates with the water outlet 12 via the water outlet control valve 30. And the valve ports of the regeneration control valve 40, the backwash drain valve 50 and the forward wash drain valve 60 are closed. Then, the medium enters from the water inlet 11, flows through the water inlet channel 1A and the water inlet control valve 20, enters the first channel 1B from the first valve port 201, then enters the upper water distributor 300, and enters the tank body 100 through the gap 310 of the upper water distributor 300. The medium then flows through the filter material 500 from top to bottom, particles in the medium are trapped, the filtered clean medium enters the lower water distributor 400 through the gap 410, flows upwards into the middle core pipe 200, then enters the second channel 1F, is sprayed to the water outlet turbine 91 through the water outlet control valve 30 and the water outlet nozzle 71, and flows out for customers to use while measuring the water yield.

When the water turbine 91 drives the control disc 102 to rotate in place under the action of the injected water, that is, when the water yield reaches a preset value, the medium flowing into the water inlet 11 enters the chamber 2A of the water inlet control valve 20, the chamber 3A of the water outlet control valve 30, the chamber 4A of the regeneration control valve 40 and the chamber 5A of the backwashing sewage valve 50 through the control disc 102 to generate water pressure, and other chambers of the valves are communicated with the pressure relief hole 1J without water pressure. Then, the piston of the water inlet control valve 20 moves downward under the action of the water pressure, the first valve port 201 is closed, the second valve port 202 is opened, the piston of the water outlet control valve 30 moves downward under the action of the water pressure, the valve port of the water outlet control valve 30 is closed, the piston of the regeneration control valve 40 is pushed under the action of the water pressure, the valve port of the regeneration control valve 40 is opened, the water inlet channel 1A forms a regeneration channel through the regeneration control valve 40, the piston of the backwash drain valve 50 is pushed under the action of the water pressure, the valve port of the backwash drain valve 50 is opened, and the first channel 1B forms a backwash drain channel through the backwash drain valve 50. And the valve port of the forward washing blowoff valve 60 is in a closed state. Then, the medium flowing from the water inlet 11 into the water inlet passage 1A is split into two paths. One path enters the second channel 1F from the second valve port 202 through the water inlet control valve 20, then flows into the middle core pipe 200 to enter the lower water distributor 400, and enters the filter material 500 of the tank body 100 through the gap 410, so that the medium flows through the filter material 500 from bottom to top, the filter material 500 is reversely washed, impurities (particles) are washed away, and then the washed impurities enter the upper water distributor 300 along with the medium upwards through the gap 310, and then are discharged through the first channel 1B and the backwashing sewage valve 50, and the backwashing process is completed. The other path is directly sprayed to the regeneration turbine 92 through the regeneration control valve 40 and the regeneration nozzle 72, and the backwash water quantity is measured, namely, the backwash is timed.

After the backwashing of the filter material 500 is completed, that is, when the regeneration turbine 92 drives the control disc 102 to rotate in place under the action of the injected water, that is, when the backwashing reaches a preset time, the medium flowing into the water inlet 11 enters the chamber 2B of the water inlet control valve 20, the chamber 3A of the water outlet control valve 30, the chamber 4A of the regeneration control valve 40 and the chamber 6A of the forward-washing blowdown valve 60 through the control disc 102, water pressure is generated, and other chambers of the valves are communicated with the pressure relief hole 1J without water pressure. Then, the piston of the water inlet control valve 20 moves upward under the action of the water pressure, the first valve port 201 is opened, the second valve port 202 is closed, the piston of the water outlet control valve 30 moves downward under the action of the water pressure, the valve port of the water outlet control valve 30 is closed, the piston of the regeneration control valve 40 is pushed under the action of the water pressure, the valve port of the regeneration control valve 40 is opened, the water inlet channel 1A forms a regeneration channel through the regeneration control valve 40, the piston of the forward-washing blowoff valve 60 is pushed under the action of the water pressure, the valve port of the forward-washing blowoff valve 60 is opened, and the second channel 1F forms a forward-washing blowoff channel through the forward-washing blowoff valve 60. And the valve port of the backwash sewage valve 50 is closed. Then, the medium flowing from the water inlet 11 into the water inlet passage 1A is split into two paths. One path enters the first channel 1B from the first valve port 201 through the water inlet control valve 20, then enters the upper water distributor 300, enters the tank body 100 through the gap 310, and then flows through the filter material 500 from top to bottom, so that impurities (particles) remained on the filter material 500 in the backwashing process are washed clean. The flushing water then enters the lower water distributor 400 through the slit 410, flows upward through the middle core pipe 200 into the second channel 1F, and finally is discharged through the forward-washing blow-down valve 60, thereby completing the forward-washing process. The other path is directly sprayed to the regeneration turbine 92 through the regeneration control valve 40 and the regeneration nozzle 72, and the amount of normal washing water is measured, namely, the normal washing is timed.

When the filter material 500 is washed forward, that is, when the regeneration turbine 92 drives the control panel 102 to rotate in place under the action of the injected water, that is, when the forward washing reaches a predetermined time (considered as qualified for drainage), the medium filtering system returns to a water producing state, and circulates in this way.

In FIG. 2, two inventive media filtration systems are shown operating in-line, with the foremost inventive media filtration system being the host and the other inventive media filtration systems being the back. The construction of the media filter system of the present utility model as a host is the same as that shown in fig. 1, and is not described in detail herein, and the construction of the other media filter system of the present utility model is basically the same as that of the media filter system of the present utility model as a host, except for the connection of the external control valve and the omission of the water outlet turbine.

Specifically, as shown in fig. 2, the media filtration system of the present utility model arranged behind the host machine includes an electroless control valve device 10', the electroless control valve device 10' includes a valve body 101 'and a control device, a water inlet channel 1A', a water outlet channel 1E ', a first channel 1B' and a second channel 1F 'are provided on the valve body 101', the water inlet channel 1A 'communicates with the first channel 1B' and the second channel 1F 'via a water inlet control valve 20', the water outlet channel 1E 'communicates with the second channel 1F' via a water outlet control valve 30', the water outlet channel 1E' is provided with a water outlet 12', a regeneration control valve 40' is provided on the water inlet channel 1A 'at the position of the water inlet 11', a backwash drain valve 50 'is provided on the first channel 1B', and a forward wash drain valve 60 'is provided on the second channel 1F'. The water inlet channel 1A 'is also provided with an external source control valve 80', and the external source control valve 80 'and the regeneration control valve 40' share the same valve outlet. The control device comprises a control panel 102', and the control panel 102' is communicated with the water inlet channel 1A ', the pressure relief hole 1J ', the water inlet control valve 20', the water outlet control valve 30', the regeneration control valve 40', the forward washing drain valve 60' and the reverse washing drain valve 50', and is used for controlling the communication of each valve with the water inlet channel 1A ' or the pressure relief hole 1J '. The control device further comprises a regeneration turbine 92', wherein the regeneration turbine 92' is arranged opposite to a regeneration nozzle 72' arranged at a valve outlet of the regeneration control valve 40' and used for starting backwashing, metering backwashing or metering the water amount of forward washing, and the regeneration turbine 92' is connected with the control disc 102' and used for driving the control disc 102' to be switched into a backwashing, forward washing or water producing state. The external source control valve 80 'communicates with a control disc 102 of the media filtration system of the present utility model disposed immediately prior thereto for initiating backwash by means of the regeneration turbine 92'. In addition, a forcing knob 103' is mounted on the control panel 102' for forcing the control panel 102' to rotate and switch to a backwashing state when the produced water is not qualified. The filtering device comprises a tank body 100' filled with a filtering material 500', the tank body 100' is connected with a valve body 101', an upper water distributor 300' and a lower water distributor 400' are arranged in the tank body 100', the bottom opening of a middle core pipe 200' is connected with the top opening of the lower water distributor 400', the top opening of the middle core pipe 200' penetrates through the upper water distributor 300', the upper water distributor 300' is communicated with a first channel 1B ', and the middle core pipe 200' is communicated with a second channel 1F '.

The online operation is described below by taking fig. 2 as an example:

the media filtration system of the present utility model, which is the host, is designated as system a, and the other media filtration system of the present utility model is designated as system B.

The system a is cycled in the order of water production, backwash and forward wash (as described above). When the system A is in the normal washing, the system A drives the control panel 102 to rotate in place by the regeneration turbine 92, and starts the system B to enter the backwashing when switching back to the water producing state, namely, the system B is switched from the water producing state to the backwashing, then the system B is switched to the normal washing, then returns to produce water, and then waits for the backwashing of the system A to start again.

Specifically, the outlet turbine 91 of the system a rotates the control disc 102, so that the medium flowing in from the water inlet 11 enters the chamber 8A 'of the external source control valve 80' of the system B via the control disc 102. Then, the piston of the external control valve 80' is pushed by the water pressure, the valve port is opened, and the medium flowing in the water inlet channel 1A ' is sprayed to the regeneration turbine 92' through the external control valve 80', the regeneration nozzle 72', and the regeneration turbine 92' drives the control disc 102' to rotate, and the state is switched to the backwashing state.

The medium flowing in from the water inlet 11' enters the chamber 2A ' of the water inlet control valve 20', the chamber 3A ' of the water outlet control valve 30', the chamber 4A ' of the regeneration control valve 40' and the chamber 5A ' of the backwash sewage draining valve 50' through the control disc 102', water pressure is generated, and other chambers (such as the chambers 2B ', 3B ', and the like) of each valve are communicated with the pressure relief hole 1J ', and no water pressure exists. Then, the piston of the water inlet control valve 20' moves downward under the action of the water pressure, the first valve port 201' is closed, the second valve port 202' is opened, the piston of the water outlet control valve 30' moves downward under the action of the water pressure, the valve port of the water outlet control valve 30' is closed (the second channel 1F ' is blocked from the water outlet channel 1E '), the piston of the regeneration control valve 40' is pushed under the action of the water pressure, the valve port of the regeneration control valve 40' is opened, the water inlet channel 1A ' forms a regeneration channel through the regeneration control valve 40', the piston of the backwash drain valve 50' is pushed under the action of the water pressure, the valve port of the backwash drain valve 50' is opened, and the first channel 1B ' forms a drain channel through the backwash drain valve 50 '. And the valve port of the forward washing drain valve 60' is in a closed state. Thus, the medium flowing from the water inlet 11 'into the water inlet passage 1A' is divided into two paths. One path enters the second channel 1F 'from the second valve port 202' through the water inlet control valve 20', then flows into the middle core pipe 200' and enters the lower water distributor 400 'through the gap 410' and enters the filter material 500 'of the tank body 100', so that the medium flows through the filter material 500 'from bottom to top to wash the filter material 500', impurities (particles) are washed out, and then the washed impurities enter the upper water distributor 300 'through the gap 310' along with the medium, and then are discharged through the first channel 1B 'and the backwashing sewage discharge valve 50', and the backwashing process is completed. The other path is directly sprayed to the regeneration turbine 92' through the regeneration control valve 40' and the regeneration nozzle 72', and the backwash water quantity is measured, namely, backwash is timed.

When the backwashing of the filter material 500 'is completed, that is, when the regeneration turbine 92' drives the control disc 102 'to rotate in place under the action of the injected water, that is, when the backwashing reaches a predetermined time, the medium flowing into the water inlet 11' enters the chamber 2B 'of the water inlet control valve 20', the chamber 3A 'of the water outlet control valve 30', the chamber 4A 'of the regeneration control valve 40' and the chamber 6A 'of the forward-washing blowdown valve 60' through the control disc 102', water pressure is generated, and other chambers of the valves are communicated with the pressure relief hole 1J', and no water pressure exists. Then, the piston of the inlet control valve 20' moves upward under the water pressure, the first valve port 201' opens, the second valve port 202' closes, the piston of the outlet control valve 30' moves downward under the water pressure, the valve port of the outlet control valve 30' closes (the second passage 1F ' is blocked from the outlet passage 1E '), the piston of the regeneration control valve 40' is pushed under the water pressure, the valve port of the regeneration control valve 40' opens, the inlet passage 1A ' forms a regeneration passage via the regeneration control valve 40', the piston of the forward-wash drain valve 60' is pushed under the water pressure, the valve port of the forward-wash drain valve 60' opens, and the second passage 1F ' forms a forward-wash drain passage via the forward-wash drain valve 60'. And the valve port of the backwash sewage valve 50' is closed. Thus, the medium flowing from the water inlet 11 'into the water inlet passage 1A' is divided into two paths. One path enters the first channel 1B 'from the first valve port 201' through the water inlet control valve 20', then enters the upper water distributor 300', and enters the tank body 100 'through the gap 310', so that impurities (particles) remained on the filter material 500 'in the backwashing process are washed clean through the filter material 500' from top to bottom. The wash water then enters the lower water distributor 400' through the gap 410', flows upward through the middle core tube 200' into the second channel 1F ', and finally is discharged through the forward wash drain valve 60', completing the forward wash process. The other path is directly sprayed to the regeneration turbine 92' through the regeneration control valve 40' and the regeneration nozzle 72', and the amount of the normal washing water is measured, namely, the normal washing is timed.

When the filter material 500' is washed forward, that is, when the regeneration turbine 92' drives the control panel 102' to rotate in place under the action of the injected water, that is, when the forward washing reaches a predetermined time (considered as qualified for drainage), the system B returns to a water producing state, and waits for the system a to start backwashing the system B, and the system a circulates as above.

Therefore, when a plurality of medium filtering systems of the utility model are operated online, the front system is used for starting the system positioned behind the front system to enter backwashing, so that the systems are matched with each other, high-flow water production is realized, and the condition that one system is in a water production state at any time is realized, namely, the backwashing is continuous.

The utility model realizes automatic switching and circulation among water production, backwashing and forward washing by means of the control panel through the medium (liquid, commonly referred to as water) per se, does not need manual control, does not need external power supply, has high operation efficiency, is suitable for popularization, and is a full-process fool-type automatic operation mode.

The foregoing is a description of the preferred embodiments of the present utility model and the technical principles applied thereto, and it will be apparent to those skilled in the art that any modifications, equivalent changes, simple substitutions and the like based on the technical scheme of the present utility model can be made without departing from the spirit and scope of the present utility model.

Claims

1. A media filtration system, comprising:

2. The media filtration system of claim 1, wherein the water inlet channel is further provided with an external control valve, the external control valve and the regeneration control valve share a same valve outlet, and the external control valve is used for online operation of a plurality of the media filtration systems.

3. The media filtration system of claim 2, wherein the control device comprises a control panel in communication with the water inlet channel, the pressure relief aperture, and in communication with the water inlet control valve, the water outlet control valve, the regeneration control valve, the forward wash blowdown valve, and the reverse wash blowdown valve for controlling whether the water inlet control valve, the water outlet control valve, the regeneration control valve, the forward wash blowdown valve, and the reverse wash blowdown valve are in communication with the water inlet channel, or the pressure relief aperture, respectively.

4. The media filtration system of claim 3, wherein the control device further comprises, when the media filtration system is operating alone or arranged forefront as a host to operate on-line with other of the media filtration systems:

the water outlet turbine is opposite to a water outlet nozzle arranged at a valve outlet of the water outlet control valve and is used for metering the water yield, and the water outlet turbine is connected with the control panel and is used for driving the control panel to be switched into a backwashing state;

the regeneration turbine is opposite to a regeneration nozzle arranged at a valve outlet of the regeneration control valve and used for metering backwash or normal water quantity, and the regeneration turbine is connected with the control panel and used for driving the control panel to switch to a normal washing or water producing state;

the external source control valve is not communicated with the control panel and is always in a closed state.

5. The media filtration system of claim 3, wherein when the media filtration system is operating in-line with other of the media filtration systems but is not subsequently hosting, the control device further comprises:

the regeneration turbine is opposite to a regeneration nozzle arranged at a valve outlet of the regeneration control valve and is used for starting backwashing, metering backwashing or metering forward washing water, and the regeneration turbine is connected with the control panel and is used for driving the control panel to be switched into backwashing, forward washing or water producing states;

the exogenous control valve communicates with the control disk of the media filtration system that is arranged in the previous one for initiating backwash by means of the regeneration turbine.

6. The media filtration system of claim 3, 4 or 5, wherein the control panel is provided with a forcing knob for forcing the control panel to switch to a backwashed state when produced water is unacceptable.

7. The media filtration system of claim 1, wherein the filtration device comprises a tank containing filter media, the tank is connected to the valve body, an upper water distributor and a lower water distributor are provided in the tank, a bottom opening of a central tube is connected to a top opening of the lower water distributor, the top opening of the central tube is disposed through the upper water distributor, the upper water distributor is in communication with the first channel, and the central tube is in communication with the second channel.