CN209890375U

CN209890375U - Equipment for cleaning inner membrane element of water purifier

Info

Publication number: CN209890375U
Application number: CN201920290890.2U
Authority: CN
Inventors: 冯维华; 孙科; 屠锦军; 曾华元
Original assignee: Zhejiang Qinyuan Water Treatment Technology Co Ltd
Current assignee: Zhejiang Qinyuan Water Treatment Technology Co Ltd
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2020-01-03
Anticipated expiration: 2029-03-07

Abstract

The utility model relates to the field of water purifiers, and discloses equipment for cleaning inner membrane elements of a water purifier, which comprises a booster pump, an RO membrane filter element and a concentrated water drainage electromagnetic valve, wherein the booster pump is connected with the RO membrane filter element, and the RO membrane filter element is connected with the concentrated water drainage electromagnetic valve; the device also comprises a water inlet electromagnetic valve, a first electromagnetic valve and a feeding device, wherein the water inlet electromagnetic valve is connected with the booster pump, one end of the first electromagnetic valve is connected to a pipeline between the water inlet electromagnetic valve and the booster pump, and the other end of the first electromagnetic valve is connected to a pipeline between the RO membrane filter core and the concentrated water discharge electromagnetic valve; install the second solenoid valve on the pipeline between booster pump and the RO membrane filter core, feeding device one end is connected on the pipeline between booster pump and second solenoid valve, and the feeding device other end is connected on the pipeline between second solenoid valve and the RO membrane filter core. When the cleaning system is used for cleaning, the RO membrane filter element forms a closed-loop cleaning system, cleaning agents in the cleaning system are released quantitatively through the feeding device, and people do not need to add the cleaning agents in the feeding device frequently.

Description

Equipment for cleaning inner membrane element of water purifier

Technical Field

The utility model relates to a water purifier field especially relates to an equipment for rinsing water purifier inner membrance component.

Background

Along with the continuous improvement of the requirement of people on the healthy living standard, the water purifier has become an indispensable article in the healthy drinking water link, and after the water purifier is used for a period of time, can adhere to and form a layer of dirt because of colloid, calcareous etc. in the quality of water on RO membrane, pipeline, washing solenoid valve, influence the filter effect, lead to the water yield to descend fast, serious or even need maintain or change the part in the short-term, and the tradition is difficult to wash away this layer of dirt by the washing mode of increase displacement, this sense of experience that just makes the consumer poor to also because of the maintenance or the change that cause for this reason, consumer's cost has been improved.

The inside part of current cleaning equipment is more, and the system pipeline is more complicated, and the increase of part leads to the increase of leakage point, for example application number: 200920177062.4, respectively; the utility model discloses the name: laboratory water purifier RO membrane automatic reagent belt cleaning device.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the shortcoming that cleaning system is more complicated among the prior art, the leakage point is many, provide an equipment for rinsing water purifier inner membrance component.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

a device for cleaning inner membrane elements of a water purifier comprises a booster pump, an RO membrane filter element and a concentrated water discharge electromagnetic valve, wherein the booster pump is connected with a raw water port of the RO membrane filter element, and a concentrated water port of the RO membrane filter element is connected with the concentrated water discharge electromagnetic valve; the device also comprises a water inlet electromagnetic valve, a first electromagnetic valve and a feeding device with cleaning agents, wherein the water inlet electromagnetic valve is connected with the booster pump, one end of the first electromagnetic valve is connected to a pipeline between the water inlet electromagnetic valve and the booster pump, and the other end of the first electromagnetic valve is connected to a pipeline between the RO membrane filter core and the concentrated water discharge electromagnetic valve; install the second solenoid valve on the pipeline between booster pump and the RO membrane filter core, feeding device one end is passed through first pipe connection on the pipeline between booster pump and second solenoid valve, and the feeding device other end passes through the second pipe connection on the pipeline between second solenoid valve and RO membrane filter core, installs the third solenoid valve on the first pipeline, installs the check valve on the second pipeline. This equipment is through the control solenoid valve of intaking, the booster pump, the second solenoid valve, the third solenoid valve, the switching of dense water drainage solenoid valve and first solenoid valve, make the RO membrane filter core form a closed loop cleaning system, when wasing, feeding device switches on first pipeline and second pipeline under hydraulic effect, release the cleaner of reinforced intracavity simultaneously, the cleaner soaks and washes the RO membrane filter core, thereby make the dirt on RO membrane filter core inner membrance surface can be thoroughly dissolved and the sanitization.

Preferably, the feeding device comprises an upper cover, a charging barrel and a lower cover, the charging barrel is arranged between the upper cover and the lower cover, a motor used for driving the charging barrel to rotate is fixed on the upper cover, a first channel is arranged at the upper end of the upper cover, a plurality of feeding cavities containing cleaning agents are arranged in the charging barrel, an upper sealing film is connected between the first channel and the feeding cavities in a sealing mode, a second channel is arranged at the lower end of the lower cover, a lower sealing film is connected between the second channel and the feeding cavities in a sealing mode, a first ejector pin device used for puncturing the upper sealing film is installed in the first channel, a second ejector pin device used for puncturing the lower sealing film is installed in the feeding cavities, the first channel is connected with a first pipeline, and the second channel is connected with a second pipeline. During cleaning, the water pressure pushes the first ejector pin device to pierce the upper sealing film, the first ejector pin device pushes the second ejector pin device, and the second ejector pin device pierces the lower sealing film, so that the cleaning agent in the feeding cavity is released. The feeding device is used for feeding cleaning agents into the cleaning pipeline, the feeding device can be opened by controlling the water pressure flowing into the feeding device, and feeding is convenient and fast. When cleaning next time, the motor drives the charging barrel to rotate, so that the other charging cavity filled with cleaning agent corresponds to the first ejector pin device. The cleaning agent is quantitative, waste is avoided, the cleaning times are clear, and people can conveniently change the cleaning agent in fixed times.

Preferably, the water supply device further comprises a water inlet connector, one end of the water inlet connector is connected with the first pipeline, the other end of the water inlet connector is connected with the first channel, the first ejector pin device comprises a piston, a first ejector pin and a first spring, one end of the piston is used for sealing the first channel, the other end of the piston is fixedly connected with the first ejector pin, and the first spring is sleeved on the first ejector pin. The water inlet connector is convenient to connect the first pipeline on one hand, and the piston is limited to move on the other hand, so that the opening of the water inlet connector can be conveniently sealed by the piston when the water inlet connector is not cleaned. When water pressure dropped to the default, first spring can drive first thimble and reset, made things convenient for motor drive feed cylinder to rotate, waited for next washing.

Preferably, the second ejector pin device comprises a second ejector pin and a second spring, a limiting block for limiting the second spring to move is arranged on the second ejector pin, and the second spring is sleeved on the second ejector pin and connected with the limiting block. When water pressure drops to the default, the second spring can drive the second thimble and reset, makes things convenient for motor drive feed cylinder to rotate, waits for next washing.

Preferably, the feeding device further comprises a feeding barrel cover, the feeding barrel cover is arranged between the upper cover and the feeding barrel, a first groove and a first annular groove are formed in the feeding barrel cover, the number of the first groove and the number of the first annular groove are the same as that of the feeding cavity and correspond to the feeding cavity, the first annular groove surrounds the periphery of the first groove, a first sealing ring is installed in the first annular groove, a through hole penetrating through the feeding barrel cover is formed in the bottom surface of the first groove, the through hole is communicated with the feeding cavity, and an upper sealing film is placed in the first groove and seals the through hole. The sealing between the charging barrel cover and the upper cover is tight, and an upper sealing film is conveniently placed on the charging barrel cover.

Preferably, the lower end face of the charging barrel is provided with a second groove communicated with the charging cavity, the lower sealing film is placed in the second groove, the lower end face of the charging barrel is further provided with a second annular groove concentric with and surrounding the second groove, and a second sealing ring is installed in the second annular groove. The charging barrel and the lower cover are tightly sealed, so that the cleaning agent in the charging cavity can not be leaked into a system pipeline, and the cleaning agent is prevented from causing drinking pollution.

Preferably, a flushing valve is arranged on a pipeline between the RO membrane filter element and the concentrated water discharge electromagnetic valve, and one end of the first electromagnetic valve is arranged on a pipeline between the flushing valve and the concentrated water discharge electromagnetic valve through a pipeline. When the circulation is washd, the flushometer flux is big, makes things convenient for cleaning system to wash the RO membrane filter core.

Preferably, the water purifier also comprises a preposed filter element which is connected with the water inlet electromagnetic valve through a pipeline. Leading filter core can filter the great impurity of volume, guarantees RO membrane filter core's life.

Preferably, the purified water outlet of the RO membrane filter element is connected with a purified water flowmeter, the other end of the purified water flowmeter is connected with a high-pressure switch, and the other end of the high-pressure switch is connected with a purified water faucet.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect:

this equipment is through the control solenoid valve of intaking, the booster pump, the second solenoid valve, the third solenoid valve, the switching of dense water drainage solenoid valve and first solenoid valve, make the RO membrane filter core form a closed loop cleaning system, when wasing, feeding device switches on first pipeline and second pipeline under hydraulic effect, release the cleaner of reinforced intracavity simultaneously, the cleaner soaks and washes the RO membrane filter core, thereby make the dirt on RO membrane filter core inner membrance surface can be thoroughly dissolved and the sanitization.

Drawings

Fig. 1 is a schematic diagram of the frame structure of the present invention.

Fig. 2 is a schematic view of an exploded structure of the charging device in fig. 1.

Fig. 3 is a schematic sectional structure view of the feeding device in fig. 1.

The names of the parts indicated by the numerical references in the above figures are as follows: wherein, 10-booster pump, 11-RO membrane filter core, 12-concentrated water drainage solenoid valve, 13-water inlet solenoid valve, 14-first solenoid valve, 15-feeding device, 16-second solenoid valve, 17-first pipeline, 18-flushing valve, 19-prepositive filter core, 20-purified water flowmeter, 21-high pressure switch, 22-purified water tap, 23-second pipeline, 24-third solenoid valve, 25-check valve, 151-upper cover, 152-charging barrel, 153-lower cover, 154-motor, 155-upper sealing membrane, 156-lower sealing membrane, 157-first thimble device, 158-second thimble device, 159-water inlet joint, 15 a-charging barrel cover, 15 b-first sealing ring, 15 c-second sealing ring, 1511-first channel, 1521-feeding cavity, 1522-second groove, 1523-second annular groove, 1531-second channel, 1571-piston, 1572-first thimble, 1573-first spring, 1581-second thimble, 1582-second spring, 1583-limit block, 15a 1-first groove, 15a 2-first groove, 15a 3-through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings 1-3 and examples.

Example 1

A device for cleaning inner membrane elements of a water purifier comprises a booster pump 10, an RO membrane filter element 11 and a concentrated water discharge electromagnetic valve 12, wherein the booster pump 10 is connected with a raw water port of the RO membrane filter element 11 through a pipeline, and a concentrated water port of the RO membrane filter element 11 is connected with the concentrated water discharge electromagnetic valve 12 through a pipeline; the device also comprises a water inlet electromagnetic valve 13, a first electromagnetic valve 14 and a feeding device 15 with cleaning agent, wherein the water inlet electromagnetic valve 13 is connected with the booster pump 10, one end of the first electromagnetic valve 14 is connected with a pipeline between the water inlet electromagnetic valve 13 and the booster pump 10 through a pipeline, and the other end of the first electromagnetic valve 14 is connected with a pipeline between the RO membrane filter element 11 and the concentrated water discharge electromagnetic valve 12 through a pipeline; install second solenoid valve 16 on the pipeline between booster pump 10 and the RO membrane filter core 11, 15 one ends of feeding device are connected on the pipeline between booster pump 10 and second solenoid valve 16 through first pipeline 17, 15 other ends of feeding device pass through second pipeline 23 and connect on the pipeline between second solenoid valve 16 and RO membrane filter core 11, install third solenoid valve 24 on the first pipeline 17, install check valve 25 on the second pipeline 23.

The feeding device 15 comprises an upper cover 151, a charging barrel 152 and a lower cover 153, wherein the charging barrel 152 is arranged between the upper cover 151 and the lower cover 153, a motor 154 for driving the charging barrel 152 to rotate is fixed on the upper cover 151, an output shaft of the motor 154 penetrates through the upper cover 151 to be fixedly connected with the charging barrel 152, a first channel 1511 is arranged at the upper end of the upper cover 151, a first connector which protrudes upwards is fixed on the upper end surface of the upper cover 151, the first connector and the upper cover 151 are integrated, the first channel 1511 penetrates through the first connector, a plurality of feeding cavities 1521 containing cleaning agents are arranged in the charging barrel 152, the feeding cavities 1521 are cylindrical feeding cavities, the number of the feeding cavities 1521 is four, an upper sealing film 155 is hermetically connected between the first channel 1511 and the feeding cavities 1521, a second channel 1531 is arranged at the lower end of the lower cover 153, a second connector is fixed at the lower end of the lower cover 153, the second connector and the lower cover 153 are integrated, the second channel 1531 penetrates through the second connector, a lower sealing film 152156 is hermetically connected between the, a first ejector pin device 157 for puncturing the upper sealing film 155 is installed in the first channel 1511, a second ejector pin device 158 for puncturing the lower sealing film 156 is installed in the feeding cavity 1521, the first channel 1511 is connected with the first pipeline 17 through a first joint, and the second channel 1531 is connected with the second pipeline 23 through a second joint.

The water inlet joint 159 is further included, one end of the water inlet joint 159 is connected to the first pipeline 17, the water inlet joint 159 is mounted on the first joint, the other end of the water inlet joint is connected to the first joint and communicated with the first channel 1511, the first thimble device 157 includes a piston 1571, a first thimble 1572 and a first spring 1573, one end of the piston 1571 is used for sealing the opening of the first channel 1511, the other end of the piston 1571 is fixedly connected to the first thimble 1572, and the first spring 1573 is sleeved on the first thimble 1572. During cleaning, water pressure rushes the piston 1571, the piston 1571 drives the first thimble 1572 to move downwards and pierce the upper sealing film 155, raw water flows into the feeding cavity 1521 and dissolves a cleaning agent, the first thimble 1572 pushes the second thimble 1581 and enables the second thimble 1581 to move downwards, the second thimble 1581 pierces the lower sealing film 156, and the cleaning agent flows into the second pipeline 23 through the second channel 1531.

The second thimble device 158 includes a second thimble 1581 and a second spring 1582, a limiting block 1583 for limiting the movement of the second spring 1582 is arranged on the second thimble 1581, the limiting block 1583 is integrated with the second thimble 1581 in this embodiment, the limiting blocks 1583 are four in number and are uniformly distributed on the outer circumferential side wall of the second thimble 1581, and the second spring 1582 is sleeved on the second thimble 1581 and is connected with the limiting block 1583.

The charging barrel comprises an upper cover 151 and a charging barrel 152, the charging barrel cover 15a is arranged between the upper cover 151 and the charging barrel 152, the charging barrel cover 15a is fixedly connected with the charging barrel 152, first grooves 15a1 and first annular grooves 15a2 which are the same as and correspond to the charging cavity 1521 in number are arranged on the charging barrel cover 15a, the first annular grooves 15a2 surround the first grooves 15a1, first sealing rings 15b are installed in the first annular grooves 15a2, through holes 15a3 penetrating through the charging barrel cover 15a are formed in the bottom surface of the first grooves 15a1, the through holes 15a3 are communicated with the charging cavity 1521, and an upper sealing film 155 is placed in the first grooves 15a1 and seals the through holes 15a 3.

The lower end surface of the charging barrel 152 is provided with a second groove 1522 communicated with the charging cavity 1521, the lower sealing film 156 is placed in the second groove 1522, the lower end surface of the charging barrel 152 is further provided with a second annular groove 1523 concentric with the second groove 1522 and surrounding the periphery of the second annular groove 1522, and a second sealing ring 15c is installed in the second annular groove 1523.

A flushing valve 18 is arranged on a pipeline between the RO membrane filter element 11 and the concentrated water discharge electromagnetic valve 12, and one end of the first electromagnetic valve 14 is arranged on a pipeline between the flushing valve 18 and the concentrated water discharge electromagnetic valve 12 through a pipeline.

The water inlet electromagnetic valve further comprises a front filter element 19, and the front filter element 19 is connected with the water inlet electromagnetic valve 13 through a pipeline.

The purified water outlet of the RO membrane filter element 11 is connected with a purified water flow meter 20, the other end of the purified water flow meter 20 is connected with a high-pressure switch 21, and the other end of the high-pressure switch 21 is connected with a purified water tap 22.

In a normal working state, after the purified water tap 22 is opened, the high-pressure switch 21 is switched on, the water inlet electromagnetic valve 13 and the second electromagnetic valve 16 are opened, the flushing valve 18 is in a normal working state, the concentrated water discharge electromagnetic valve 12 is opened, the first electromagnetic valve 14 is closed, the third electromagnetic valve 24 is closed, and the booster pump 10 works. The water flow flows through the preposed filter element 19, the water inlet electromagnetic valve 13, the second electromagnetic valve 16 and the RO membrane filter element 11 under the action of the booster pump 10, the concentrated water flows into the concentrated water discharge electromagnetic valve 12 from the flushing valve 18, the purified water flows out from the purified water faucet 22 through the purified water flowmeter 20 and the high-voltage switch 21, and the water purifier works in a normal water production state.

When the scaling condition of the pipeline reaches the preset cleaning condition, the preset cleaning condition is as follows: after the prototype is installed and operated for 48 hours for the first time, continuously recording the purified water flow for 5 times, and taking the average value as an initial purified water flow value to be stored in an electronic memory; during the period, the water flow is detected by the water purification flowmeter in real time, when the flow is detected for 5 times continuously and is less than 85% of the initial purified water flow value, the cleaning condition is reached, and the automatic descaling cleaning program is prompted to be started. After the descaling and cleaning program is started, the water inlet electromagnetic valve 13 is closed, the second electromagnetic valve 16 is closed, the concentrated water discharge electromagnetic valve 12 is closed, the flushing valve 18 is switched to a flushing state after being powered on, the first electromagnetic valve 14 is opened, the third electromagnetic valve 24 is opened, the upper opening and the lower opening of the feeding cavity 1521 are communicated with the inlet and the outlet of the feeding device 15 which can be automatically switched, the feeding cavity 1521 is connected into a water path, the booster pump 10 works, and the system enters the descaling state.

The water flows circularly between the booster pump 10, the third electromagnetic valve 24, the automatically switchable feeding device 15, the check valve 25, the RO membrane filter cartridge 11, the flushing valve 18 and the first electromagnetic valve 14. Water flows through the feeding cavity 1521, and the descaling powder is dissolved and then injected into the second pipeline 23, so that the function of quantitatively adding the descaling powder is realized. When the descaling powder is completely dissolved, the concentration of the descaling liquid in the pipeline reaches a preset level. The descaling and cleaning procedure automatically controls the operation and stop time of the booster pump 10, thereby realizing repeated washing and soaking, and removing the dirt attached to the pipeline, the booster pump 10, the RO membrane filter element 11 and the flush valve 18. After the rinsing and soaking process is finished after the rinsing and soaking process reaches the preset time, the descaling and cleaning program controls the concentrated water drainage electromagnetic valve 12 to be opened, and the water inlet electromagnetic valve 13 to be opened. After the washing machine continues to work for a certain time, the second electromagnetic valve 16 is opened, the first electromagnetic valve 14 is closed, the third electromagnetic valve 24 is closed, and after the washing machine continues to wash for a certain time, the booster pump 10, the water inlet electromagnetic valve 13, the second electromagnetic valve 16 and the concentrated water discharge electromagnetic valve 12 are automatically closed by a program, the washing valve 18 is switched to a normal working state after being de-energized, and the washing program is automatically ended. During the operation of the descaling cleaning program, any key does not work, and an indicator lamp and a buzzer prompt that the descaling cleaning program is in operation; the cleaning has a power-off maintaining function, namely, power is off during the operation of the cleaning program, and after the power is turned on again, the program is continuously executed until the whole cleaning process is finished.

When the water purifier sends a feeding instruction, water starts to enter, and when the water enters the upper cover 151, the piston 1571 is pushed open due to the water pressure of the water, so that the first thimble 1572 presses the first spring 1573 downwards, the sharp part at the bottom of the first thimble 1572 punctures the upper sealing film 155 on the cylinder cover 15a, so that the water enters the cylinder 152, meanwhile, the bottom of the first thimble 1572 pushes the second thimble 1581, so that the second thimble 1581 moves downwards to puncture the lower sealing film 156 at the bottom of the cylinder 152, and the water enters the second pipeline 23 needing descaling through the second channel 1531. When the detergent in one of the cartridges 152 is used up, the water inlet is closed, the water pressure in the entire feeding device 15 is kept balanced without pressure difference, the first spring 1573 returns to its original position, and the first ejector pin 1572 is pushed upward, so that the piston 1571 abuts against the water inlet of the water inlet connector 159; meanwhile, the second spring 1582 is restored to the original position, so that the second thimble 1581 is also restored to the original position. The one-time feeding process is finished.

According to the scaling severity of the membrane element of the water purifier, when the water purifier control program sends a feeding instruction again, the motor 154 rotates to drive the material cylinder cover 15a and the material cylinder 152 to rotate and switch to the next feeding cavity 1521, and then the water inlet is opened to feed the next descaling agent into the second pipeline 23. The process is repeated for several times during the life cycle of the water purifier until all the descaling agent in the cylinder 152 is used up.

Example 2

Embodiment 2 is substantially the same as embodiment 1 except that embodiment 2 does not have the cartridge cover 15a between the upper cover 151 and the cartridge 152, wherein the first groove 15a1 and the first annular groove 15a2 are provided on the lower end surface of the upper cover 151.

Example 3

Embodiment 3 has substantially the same features as embodiment 1, except that a cartridge base (not shown) is disposed between the cartridge 152 and the lower cover 153 in embodiment 3, the cartridge base has the same structure as the cartridge cover 15a, the cartridge base and the cartridge cover 15a are symmetrically disposed at the upper and lower ends of the cartridge 152, the lower end surface of the cartridge 152 in this embodiment has no second groove 1522 and no second annular groove 1523, and the second groove 1522 and the second annular groove 1523 are disposed on the cartridge base.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. A device for cleaning inner membrane elements of a water purifier comprises a booster pump (10), an RO membrane filter element (11) and a concentrated water discharge electromagnetic valve (12), wherein the booster pump (10) is connected with a raw water port of the RO membrane filter element (11), and a concentrated water port of the RO membrane filter element (11) is connected with the concentrated water discharge electromagnetic valve (12); the method is characterized in that: the device also comprises a water inlet electromagnetic valve (13), a first electromagnetic valve (14) and a feeding device (15) with cleaning agents, wherein the water inlet electromagnetic valve (13) is connected with the booster pump (10), one end of the first electromagnetic valve (14) is connected to a pipeline between the water inlet electromagnetic valve (13) and the booster pump (10), and the other end of the first electromagnetic valve (14) is connected to a pipeline between the RO membrane filter element (11) and the concentrated water discharge electromagnetic valve (12); install second solenoid valve (16) on the pipeline between booster pump (10) and RO membrane filter core (11), feeding device (15) one end is connected on the pipeline between booster pump (10) and second solenoid valve (16) through first pipeline (17), feeding device (15) other end passes through second pipeline (23) and connects on the pipeline between second solenoid valve (16) and RO membrane filter core (11), install third solenoid valve (24) on first pipeline (17), install check valve (25) on second pipeline (23).

2. An apparatus for cleaning an inner membrane member of a water purifier according to claim 1, wherein: the feeding device (15) comprises an upper cover (151), a charging barrel (152) and a lower cover (153), the charging barrel (152) is arranged between the upper cover (151) and the lower cover (153), a motor (154) for driving the charging barrel (152) to rotate is fixed on the upper cover (151), a first channel (1511) is arranged at the upper end of the upper cover (151), a plurality of feeding cavities (1521) containing cleaning agents are arranged in the charging barrel (152), an upper sealing film (155) is hermetically connected between the first channel (1511) and the feeding cavities (1521), a second channel (1531) is arranged at the lower end of the lower cover (153), a lower sealing film (156) is hermetically connected between the second channel (1531) and the feeding cavities (1521), a first thimble device (157) used for puncturing the upper sealing film (155) is arranged in the first channel (1511), a second thimble device (158) used for puncturing the lower sealing film (156) is arranged in the feeding cavity (1521), and the first channel (1511) is connected with a first pipeline (17), the second channel (1531) is connected to the second conduit (23).

3. An apparatus for cleaning an inner membrane member of a water purifier according to claim 2, wherein: still include water supply connector (159), water supply connector (159) one end is connected with first pipeline (17), and its other end is connected with first passageway (1511), and first thimble device (157) includes piston (1571), first thimble (1572) and first spring (1573), and piston (1571) one end is used for sealing first passageway (1511), and its other end and first thimble (1572) fixed connection, and first spring (1573) suit is on first thimble (1572).

4. An apparatus for cleaning an inner membrane member of a water purifier according to claim 2, wherein: the second ejector pin device (158) comprises a second ejector pin (1581) and a second spring (1582), a limiting block (1583) for limiting the movement of the second spring (1582) is arranged on the second ejector pin (1581), and the second spring (1582) is sleeved on the second ejector pin (1581) and connected with the limiting block (1583).

5. An apparatus for cleaning an inner membrane member of a water purifier according to claim 2 or 3, wherein: still include feed cylinder lid (15a), feed cylinder lid (15a) are established between upper cover (151) and feed cylinder (152), be equipped with quantity and feed chamber (1521) the same and rather than corresponding first recess (15a1) and first annular groove (15a2) on feed cylinder lid (15a), first annular groove (15a2) encircle around first recess (15a1), install first sealing washer (15b) in first annular groove (15a2), first recess (15a1) bottom surface is equipped with through-hole (15a3) that runs through feed cylinder lid (15a), through-hole (15a3) and feed chamber (1) intercommunication, go up seal membrane (152155) and place in first recess (15a1) and seal through-hole (15a 3).

6. An apparatus for cleaning an inner membrane member of a water purifier according to claim 2 or 4, wherein: the lower terminal surface of feed cylinder (152) is equipped with second recess (1522) with feeding chamber (1521) intercommunication, seals membrane (156) down and places in second recess (1522), and the lower terminal surface of feed cylinder (152) still is equipped with second recess (1522) concentric and encircle second annular groove (1523) around it, installs second sealing washer (15c) in second annular groove (1523).

7. An apparatus for cleaning an inner membrane member of a water purifier according to claim 1, wherein: a flushing valve (18) is arranged on a pipeline between the RO membrane filter element (11) and the concentrated water discharge electromagnetic valve (12), and one end of the first electromagnetic valve (14) is arranged on a pipeline between the flushing valve (18) and the concentrated water discharge electromagnetic valve (12) through a pipeline.

8. An apparatus for cleaning an inner membrane member of a water purifier according to claim 1, wherein: the water inlet device also comprises a preposed filter element (19), wherein the preposed filter element (19) is connected with the water inlet electromagnetic valve (13) through a pipeline.

9. An apparatus for cleaning an inner membrane member of a water purifier according to claim 1, wherein: the purified water outlet of the RO membrane filter element (11) is connected with a purified water flow meter (20), the other end of the purified water flow meter (20) is connected with a high-voltage switch (21), and the other end of the high-voltage switch (21) is connected with a purified water tap (22).