CN110980878A - Water purifier with upper module, U-shaped filter container bin and concentrated water discharging pump - Google Patents

Abstract

The invention relates to the water treatment industry, in particular to drinking water filtration. The invention discloses a water purifier with an overhead module, a U-shaped filter tank bin and a concentrated water discharging pump. The device comprises a plurality of filter liners including reverse osmosis membrane filter liners, an overhead module, a U-shaped filter liner bin, a loose joint device and a filter channel formed by connecting each filter liner and a related water passing control component through a water passing pipeline; the upper module is in upper and lower insertion fit with a U-shaped filter container bin for fixing each filter container and is connected into a whole by a loose joint device; the device also comprises a concentrated water discharging pump; the electric control device monitors concentrated water discharge in a concentrated water discharge pipeline of a reverse osmosis membrane filter liner in the filter channel through a total solubility solid monitoring device or a water quantity monitoring device, and controls a concentrated water discharge pump to operate or close: when the monitoring parameter of the total soluble solid monitoring device or the water quantity monitoring device is lower than the limit value, the concentrated water discharging pump is operated to discharge concentrated water; and when the monitoring parameter of the total dissolved solid monitoring device or the water passing amount monitoring device is lower than the limit value, the concentrated water discharge pump is closed.

Description

Water purifier with upper module, U-shaped filter container bin and concentrated water discharging pump

Prior application title: water purifier provided with concentrated water discharging pump device and total dissolubility solid monitoring device

Prior application No.: 201811211638.4

The invention relates to the water treatment industry, in particular to the aspects of deep filtration and purification of drinking water.

Background

As a consumable of the water purifier, the filter liner needs to be replaced after being used for a period of time. However, with the popularization of water purifiers, the defects and shortcomings of the water purifiers in application are gradually exposed: the middle and low-price water purifiers mostly adopt an open type inner container configuration bare machine mode. The shell with the built-in liner is hung on the machine structure below the base, and although the shell can be reused, the cost of replacing the filter liner by a consumer is correspondingly reduced by 10-20%, the problems of single product structure, difficult liner replacement, difficult cleaning of a filter cavity and the like are correspondingly generated. Generally, a water purifier with an open filter cartridge arranged at the bottom is directly placed in a kitchen cabinet through a shell with an internal liner, the water purifier needs to be taken out and erected when the liner is replaced, a special filter liner wrench is sleeved on the shell from bottom to top, and the shell can be detached by forcibly rotating the special filter liner wrench to be in threaded connection with a base. After the new inner container is replaced, the shell with the inner container is screwed down below the machine base by force, and the whole operation process is very laborious. Because the water purifier filled with water is heavy, and the built-in filter liner in the open type filter cylinder is poured out together with water after the filter cylinder is detached, the water pollution treatment is very troublesome, and a case of cleaning the inner cavity of the filter cylinder is very rare at present. Moreover, because the inner container is placed in the filter cartridge, water leakage is easy to occur carelessly during replacement. As for the horizontal water purifier, the use is very convenient: can be placed on the table-board of a kitchen cabinet and can also be placed in the cabinet; the machine is directly placed on the use position without punching and hanging the machine. Because the filter liner is positioned above the machine base, the filter liner is convenient to replace, and time and labor are saved relatively. But the biggest difficult problem of adopting seat formula purifier structure lies in that the machine operation face is little, and display element and operation controlling means can only set up on the machine side facade, and the top surface is used for changing the filter flask, and water control unit does not have the department and can put moreover. Since the water purifier has limited length and width dimensions, generally less than 500 mm × 200 mm × 450 mm, the installation of the display control device on the side vertical surface of the machine affects the number of the filter cartridges. When the closed filter container is used, the water port of the filter container faces downwards, so that water in the filter container can flow out from the water port of the filter container to pollute the surrounding environment during replacement. The water in the front and back filter containers is discharged from the inlet and outlet pipes of the corresponding base until the water level in the water purifier is balanced, so that the water purifier with the base has the advantage of easy extraction of the filter containers. When the internal filter container of the open type filter cartridge is used, the internal filter container in the existing open type filter cartridge is poured out together with water after the filter cartridge is detached, the operation is very troublesome, and a case of cleaning the inner cavity of the filter cartridge is very rare. Because the environment for placing the water purifier is poor, the water flow speed leaking in the process of replacing the filter liner is too fast and is not easy to remove, thus not only causing inconvenient operation, but also causing the cabinet to be soaked and even damaging the cabinet plate. In view of the whole process that the filter container is always replaced along with the use of the water purifier, the related problems caused by replacing the filter container and cleaning the filter channel can be frequently repeated. In addition, the scaling phenomenon of the filter cartridge and the inner wall of the pipeline of the water purifier is very serious after the water purifier is used for a long time, and the water purifying treatment environment of the water purifier is increasingly poor. Especially, the problems of cleaning the inner cavity of the upper open type filter cylinder, discharging sewage containing a large amount of impurities and extracting the built-in filter liner are not solved, so that a machine model of a lower machine base is rarely adopted. Even, no water purifier capable of cleaning the filter cartridge is available so far. On the other hand, the filter liner replacement and cleaning maintenance of the water purifier require professional personnel to go to the home, which is labor-consuming, time-consuming and not high in charging, and the professional personnel are reluctant to provide the home cleaning service due to lack of cleaning means, so that the problem of machine cleaning is rarely mentioned to users. So that most users only know to replace the filter cartridge, but few know to regularly clean the machine. In addition, the waste of water resource is very serious to current nanofiltration membrane and reverse osmosis membrane purifier. Typically, the "concentrate" discharged by the machine is more than 3 times the "pure water" produced. The concentrated water is purified water which is filtered by a filter liner of a pre-arranged micro-filtration membrane, and is discharged directly. The above-mentioned drawbacks and disadvantages make it difficult to widely popularize the water purifier.

Disclosure of Invention

The invention mainly solves the technical problem of providing a simple and practical water purifier provided with a concentrated water discharging pump device and a total dissolubility solid monitoring device, so as to overcome the defects and shortcomings.

A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module with a pure water pipeline, the U-shaped filter container bin and a loose joint device with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filtering channel for normal operation of each filter liner, wherein the front filter liners connected in series form a front filtering channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device; the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner is provided with three water ports: the water inlet of the water purifier is connected with a front filter liner through a booster pump, a pure water port of the water purifier is connected with a pure water pipeline, a concentrated water discharging pipeline connected with a concentrated water discharging port of the water purifier is provided with a concentrated water discharging flow control component, a concentrated water discharging storage tank and a return water electric control valve which is communicated with an electric water inlet valve in a selective way, a water inlet pipeline of the concentrated water discharging storage tank provided with a water quantity monitoring device is connected with a water outlet end of the concentrated water discharging flow control component, a water inlet end and a water outlet end of the return water electric control valve are respectively connected with a water outlet pipeline at the lower part of the concentrated water discharging storage tank and a water inlet pipeline of the booster pump to form; after the pure water control valve is opened, the electric control device monitors the amount of concentrated water discharged in the concentrated water discharging storage tank through the water amount monitoring device: the electric control device controls the conduction water return electric control valve and the booster pump to operate after the water inlet electric control valve is higher than the lower control limit, and closes the water inlet electric control valve in the pre-filtering channel; the electric control device controls the water inlet electric control valve and the booster pump in the front filtering channel to operate and closes the water return electric control valve after the water inlet electric control valve and the booster pump are lower than the lower control limit, and the electric control device is characterized by further comprising a concentrated water discharge direct discharge pipeline provided with a concentrated water discharge pump and a total dissolved solid monitoring device provided with a TDS limit value; a monitoring probe of the total solubility solid monitoring device is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner; the water inlet end of the concentrated water discharge pump is connected with a water outlet pipeline of the concentrated water discharge flow control component; in the normally operating filtering channel, when the TDS value monitored by the total soluble solid monitoring device is lower than a limit value, the electric control device controls the concentrated water discharge pump to be closed and the concentrated water discharge recycling pipeline system to operate; when the TDS value monitored by the total soluble solid monitoring device is higher than the limit value, the electric control device controls the concentrated water discharge pump to operate, so that concentrated water discharged from the water outlet end of the concentrated water discharge flow control component is discharged to the concentrated water discharge direct-discharge pipeline, and the concentrated water discharge pump is closed until the monitored TDS value is lower than the limit value.

A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module provided with a pure water pipeline and a concentrated water discharge port, the U-shaped filter container bin and a loose joint device provided with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filtering channel for normal operation of each filter liner, wherein the front filter liners connected in series form a front filtering channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device; the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner is provided with three water ports: the water inlet of the device is connected with a preposed filter liner through a booster pump, the pure water port of the device is connected with a pure water pipeline, the concentrated water discharging port of the device is connected with a concentrated water discharging pipeline provided with a concentrated water discharging flow control component and a reverse water stop valve device, and the water outlet end of the reverse water stop valve device is connected with the front end of the preposed filter channel to form a one-way concentrated water discharging recycling channel; a monitoring probe of the total solubility solid monitoring device is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner; the water inlet end of the concentrated water discharge pump is connected with a pipeline between the concentrated water discharge flow control component and the reverse water stop valve device; in the filtering channel in normal operation, when the TDS value monitored by the total dissolved solids monitoring device is lower than a limit value, the electric control device controls the concentrate discharge pump to be closed and the reverse water stop valve device to discharge water; when the TDS value monitored by the total soluble solid monitoring device is higher than the limit value, the electric control device controls the concentrated water discharging pump to operate, the concentrated water discharging flow control component discharges concentrated water at the water outlet end to the concentrated water discharging direct discharging pipeline, and the concentrated water discharging pump is closed until the monitored TDS value is lower than the limit value.

The device also comprises a water purifying pipeline provided with a water purifying and controlling valve; the water inlet end of the purified water control valve is connected with the tail end of the preposed filtering channel.

The water outlet pipeline is provided with a pure water control valve; the water outlet end of the pure water control valve is communicated with the water outlet end of the pure water control valve, and the two control valves are in a closed state or a water outlet state.

A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module with a pure water pipeline, the U-shaped filter container bin and a loose joint device with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filter channel for normal operation of each filter liner, wherein a front filter liner and a water inlet electric control valve which are connected in series form a front filter channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device; the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner is provided with three water ports: the water inlet of the water purifier is connected with a preposed filter liner through a booster pump, the pure water port of the water purifier is connected with a pure water pipeline, the concentrated water discharging port of the water purifier is connected with a concentrated water discharging pipeline provided with a concentrated water discharging flow control component and a concentrated water discharging storage tank, the water inlet pipeline of the concentrated water discharging storage tank provided with a water quantity monitoring device is connected with the water outlet end of the concentrated water discharging flow control component, the water outlet pipeline at the lower part of the concentrated water discharging storage tank is connected with the water inlet pipeline of the booster pump to form a concentrated water discharging recycling pipeline system, and the water quantity monitoring device is either a water level monitoring device or a flow monitoring device and is characterized by also comprising a; the water inlet and outlet pipelines of the concentrated water discharging pump are respectively connected with the water outlet pipeline at the lower part of the concentrated water discharging storage tank and the water inlet pipeline of the booster pump, and the water inlet end of the water purifying pipeline arranged on the upper module is respectively connected with the tail end of the preposed filtering channel and the water outlet pipeline of the concentrated water discharging pump; after the pure water control valve is opened, the electric control device monitors the amount of concentrated water discharged in the concentrated water discharging storage tank through the water amount monitoring device: the electric control device controls the operation of the concentrated water discharging pump and the booster pump after the lower control limit is higher than the lower control limit, and closes the water inlet electric control valve in the pre-filtering channel; the electric control device controls the water inlet electric control valve and the booster pump in the pre-filtering channel to operate and closes the concentrated water discharging pump after the water inlet electric control valve and the booster pump are lower than the lower control limit; in the process of opening the purified water control valve and operating the filtering channel, the electric control device monitors the amount of the concentrated water discharged in the concentrated water discharging storage tank through the water amount monitoring device: the electric control device controls the operation of the concentrated water discharge pump and closes the water inlet electric control valve in the pre-filtering channel after the lower control limit is higher than the lower control limit; and after the water inlet is lower than the lower control limit, the electric control device controls the water inlet electric control valve in the front filtering channel to operate and closes the concentrated water discharging pump.

The system also comprises a dissolubility total solid monitoring device with a limit value, an electric control valve for water inlet and a concentrated water discharging direct discharging pipeline with a water discharging control device; a monitoring probe of the total solubility solid monitoring device is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner; the water inlet electric control valve is connected in a pipeline between the concentrated water discharge flow control component and the concentrated water discharge storage tank; the water inlet end of the drainage control device is also connected with the water outlet end of the concentrated water drainage flow control component, and the drainage control device is either a drainage electric control valve or a concentrated water drainage pump; in the filtering channel in normal operation, when the TDS value monitored by the total dissolved solids monitoring device is lower than a limit value, the electric control device controls the water inlet electric control valve to be switched on and switches off the drainage control device; when the monitoring value of the total soluble solid monitoring device is higher than the limit value, the electric control device controls the water inlet electric control valve to be closed and switches on the drainage control device to operate, the concentrated drainage water at the water outlet end of the concentrated drainage water flow control component is discharged out of the concentrated drainage water direct drainage pipeline, and the electric control device controls the water inlet electric control valve to be switched on and the drainage control device to be closed until the TDS value monitored by the total soluble solid monitoring device is lower than the limit value.

The water outlet pipeline is provided with a pure water control valve; the water outlet end of the pure water control valve is communicated with the water outlet end of the pure water control valve, and the two control valves are in a closed state or a water outlet state.

The U-shaped filter container bin is provided with a U-shaped filter container cavity for placing the filter container and an implementation cavity for placing the water passing control component; the filter container fixed in the filter container cavity is connected through a fastening device, a space between the U-shaped filter container cavity and the filter container cavity forms a concentrated water discharging storage tank, and a water inlet pipeline and a water outlet pipeline are arranged and are respectively communicated with related pipelines in a concentrated water discharging recycling pipeline system.

The upper module is provided with a vertical through hole structure; the filter liner fixed in the U-shaped filter liner bin comprises a self-supporting filter liner provided with an upper fixing structure and a filter liner fixing device, the upper module is matched with the U-shaped filter liner bin up and down, and the through hole structure of the upper module is correspondingly matched with the upper fixing structure of the self-supporting filter liner; the upper fixing device is an independent part separated from the upper module or a movable part movably connected with the upper module to form a whole and only limited to the rotation on the upper module, and is connected and matched with an upper fixing structure corresponding to the self-supporting filter liner through a vertical through hole structure or in a threaded connection mode or a rotary clamping connection mode to form a loose joint device, so that the upper module and the U-shaped filter liner bin are connected to form a whole; the upper fixing device is separated from the connecting and matching of the self-supporting filter liner upper fixing structure, and the upper module is separated from the U-shaped filter liner bin.

The U-shaped filter liner bin is provided with an upper fixing structure; the upper module is provided with a vertical through hole structure; the upper module is matched with the U-shaped filter container bin up and down, and the through hole structure of the upper module is correspondingly matched with the upper fixing structure of the U-shaped filter container bin; the upper fixing device is an independent part separated from the upper module or a movable part movably connected with the upper module to form a whole and only limited to the rotation on the upper module, and is connected and matched with an upper fixing structure corresponding to the U-shaped filter container bin through a vertical through hole structure or in a threaded connection mode or a rotary clamping connection mode to form a loose joint device, so that the upper module and the U-shaped filter container bin are connected to form a whole; the upper fixing device is separated from the U-shaped filter container cabin, and the upper module can be separated from the U-shaped filter container cabin.

Compared with the existing water purifier provided with a concentrated discharge water recycling system, the invention has the following advantages: the machine waterway control structure is simple, the discharge concentrated water utilization system has few related water passing control parts and low cost; the 'concentrated water' that can make full use of reverse osmosis membrane and receive filter cartridge and discharge has apparent water conservation function, and on the basis of guaranteeing machine filtering channel normal operating, reverse osmosis membrane filter cartridge or receive filter cartridge and discharge concentrated water's utilization opportunity and degree has been controlled better, only consider the concentrated water of make full use of in the past, do not consider the condition of the influence of impurity concentration in the concentrated water to relevant filter cartridge bed life-span, lead to relevant filter cartridge life-span to shorten, the problem of corresponding increase filter cartridge replacement cost appears, thereby under the prerequisite of not shortening relevant filter cartridge normal life-span, make reverse osmosis membrane filter cartridge or receive filter cartridge and discharge concentrated water and obtain better utilization, and can carry out' elevation output drainage, thereby make the utilization and the structure setting of water purification pipeline have the variety. In addition, the filter liner is convenient to extract and replace, the situation that water in the filter channel overflows out of the machine to pollute the environment in the filter liner replacing process is avoided, and the filter cartridge for placing the liner can be taken down to be independently detached and cleaned and the U-shaped filter liner cavity can be cleaned; in view of the U-shaped filter liner cavity constitutes the lower filter liner storehouse that supports the filter liner, will cross the water control unit setting and be convenient for maintain on overhead module simultaneously, make the machine constitute double-deck lid structure, thereby in limited size space, have the space is placed to the "last control plane" of great area and cross water control unit and water pipeline, and can conveniently open lower filter liner storehouse, satisfy display control simultaneously, the part is maintained, filter liner is changed, filter the storehouse washs respective functional requirement, and machine structure is simple, low-cost manufacturing requirement, the user can open the upper cover by oneself and change the filter core, avoid by professional reservation door service cause inconvenience and service expenditure, the corresponding use cost that has reduced the filter core, also made things convenient for remote user simultaneously.

Description of the drawings:

FIG. 1 is a schematic diagram of the principle of a water path of a water purifier which adopts a front filtering channel provided with a front filtering liner and a water inlet electric control valve, a booster pump, a reverse osmosis membrane filtering liner or a nanofiltration membrane filtering liner, a rear functionalized filtering liner, a concentrated water discharging pipeline provided with a concentrated water discharging flow control component, a water returning electric control valve, a water returning pipeline of a water storage tank, a pure water pipeline, a total dissolubility solid monitoring device and a concentrated water discharging pump.

FIG. 2 is a schematic diagram of the principle of a water path of a water purifier adopting a front filtering channel with a front filter liner, a booster pump, a reverse osmosis membrane filter liner or a nanofiltration membrane filter liner, a rear functionalized filter liner, a concentrated water discharge pipeline with a concentrated water discharge flow control component, a water return pipeline with a reverse water stop valve device, a pure water pipeline, a total dissolved solid monitoring device and a concentrated water discharge pump.

FIG. 3 is a schematic diagram of the principle of a water path of a water purifier which adopts a front filtering channel with a front filtering liner and a water inlet electric control valve, a booster pump, a reverse osmosis membrane filtering liner or a nanofiltration membrane filtering liner, a rear functionalized filtering liner, a concentrated water discharging pipeline with a concentrated water discharging flow control component, a water returning pipeline with a water returning electric control valve and a water storage tank, a pure water pipeline, a two-in-one pipeline structure of the pure water pipeline and the pure water pipeline, a total solubility solid monitoring device and a concentrated water discharging pump.

Detailed Description

Generally, the filtering channels connecting the filtering bladders and the water passing control component are respectively connected with the water inlet and outlet pipelines of the machine base to form the filtering channels. Selecting a related water passing control part to control related water passing pipelines in the filtering channel of the machine base; the water passing control component is at least one component of a waterway switcher, a water passing control valve, a water pressure control switch, a flow sensor, a water pump, a membrane concentrated water discharge flow control device, an ultraviolet sterilization device, a combined butt joint cavity, a TDS probe or a water level monitoring device, wherein:

the waterway switcher as one of the water passing control components is a device for changing the water passing direction of the water inlet and the water outlet of a certain original controlled filter liner so as to carry out independent back flushing cleaning on the controlled filter liner. The filtering container which is not provided with the waterway switcher or can not change the water passing direction of the water inlet and the water outlet of the filtering container through the waterway switcher and then carry out independent back flushing cleaning on the filtering container does not belong to a controlled filtering container.

The water inlet valve, the water discharge valve, the water return valve, the check valve, the water stop valve and the overflow valve which are used as one of the water passing control valves are all used for controlling the on and off of water passing through the pipeline. In addition, the excess water control valve further includes a pressure reducing valve. The valves may be electrically controlled valves or manually operated valves. The water passing electric control valve comprises a pipeline water passing base structure and a cover plate device consisting of a cover plate and an electric control valve core device.

The high-low water pressure control switch is used as one of the water pressure control switches and is used for controlling a circuit switch through pipeline water pressure change, wherein the low-pressure control switch is provided with a pipeline interface; the high-voltage control switch is provided with an inlet pipeline interface and an outlet pipeline interface. The water pressure control switch comprises a pipeline water passing base structure and a cover plate device consisting of an electric control switch device.

The flow sensor is used for driving the related circuit to output a control signal through the flow of the water and accumulating the flow of the water; in the scheme, the flow sensor also comprises a flow switch which drives the related circuit to output on and off signals only by whether water flows.

The water pump at least comprises but is not limited to a water pump positioned in a reverse osmosis membrane filter container or a nanofiltration membrane water inlet pipeline. The water pump is used for increasing the water pressure in a water inlet pipeline of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner and meeting the operation requirement of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner; in addition, a water pump for pumping water can be arranged in the water passing pipeline which needs to be provided with water pumping, for example, the water pump is arranged in the concentrated water discharging and returning pipeline to deliver water to a high place aiming at the U-shaped water storage cavity.

And the concentrated water discharge flow control device controls the water discharge flow of a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner. The concentrated water discharge flow control device at least comprises one flow control device of a combined electromagnetic valve, an automatic flushing combined valve, an automatic flushing valve, an accumulated flushing valve, an intelligent flushing valve and a waste water ratio.

An ultraviolet sterilizer for sterilizing water flowing through the pipeline by ultraviolet rays.

The combined butt joint cavity is a separable sealed plug-in shell with a built-in filter material layer or membrane concentrated water discharge flow control device. The purpose of the combined butt joint cavity is to facilitate the replacement of a built-in naked liner or a built-in plug-in membrane concentrated water discharge flow control device (such as a wastewater ratio).

TDS probes are used to monitor the total dissolved solids value at each specific location in the filtration channel.

And the water level monitoring device monitors the water level of the water stored in the water storage cavity and outputs a control signal.

The water flow control components are conventional in the prior art, and it is not described that all of the water flow control components are necessarily adopted in the present application. As for the water purifier provided with the microfiltration membrane, the ultrafiltration membrane, the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner, which water passing control components need to be configured, the water passing control components need to be configured according to the specific needs of various models and connected with corresponding water passing pipelines, and the common knowledge in the field is included. The function and principle of the common water control part and the connected water pipeline are not explained in the scheme.

Example 1. A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module with a pure water pipeline, the U-shaped filter container bin and a loose joint device with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filtering channel for normal operation of each filter liner, wherein the front filter liners connected in series form a front filtering channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device.

In the attached figure 1, the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 is provided with three water gaps: the water inlet of the water-saving device is connected with a preposed filter liner 2 through a booster pump 4, the pure water port of the water-saving device is connected with a pure water pipeline 10, a concentrated water discharging pipeline 9 connected with a concentrated water discharging port is provided with a concentrated water discharging flow control component 5, a concentrated water discharging storage tank 15 and a return water electric control valve 7 which is communicated with a water inlet electric control valve 3, a water inlet pipeline 13 of the concentrated water discharging storage tank 15 provided with a water quantity monitoring device (not shown) is connected with the water outlet end of the concentrated water discharging flow control component 5, the water inlet end and the water outlet end of the return water electric control valve 7 are respectively connected with a water outlet pipeline at the lower part of the concentrated water discharging storage tank 15 and a water inlet pipeline of the booster pump 4 to form a concentrated water; after the pure water-making control valve is opened, the electric control device (not shown) monitors the amount of the discharged concentrated water in the discharged concentrated water storage tank through the water amount monitoring device: the electric control device controls the water return electric control valve 7 and the booster pump 4 to operate after the water inlet electric control valve is higher than the lower control limit, and closes the water inlet electric control valve 3 in the pre-filtering channel; and after the water level is lower than the lower control limit, the electric control device controls the water inlet electric control valve 3 and the booster pump 4 in the front filtering channel to operate and closes the water return electric control valve 7. The water purifier also comprises a concentrated water discharging direct discharging pipeline provided with a concentrated water pump 11, and a total dissolved solid monitoring device 8 provided with a TDS limit value; the monitoring probe of the total solubility solid monitoring device 8 is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24. The water inlet end of the concentrated water discharge pump 11 is connected with a water outlet pipeline 13 of the concentrated water discharge flow control component 5. In the filtering channel in normal operation, when the TDS value monitored by the total soluble solid monitoring device 8 is lower than the limit value, the electric control device controls the concentrated water discharging pump to be closed and the concentrated water discharging recycling pipeline system to operate; when the TDS value monitored by the total soluble solids monitoring device 8 is higher than the limit value, the electric control device controls the concentrated water discharging pump 11 to operate to discharge concentrated water at the water outlet end of the concentrated water discharging flow control component 5 to the concentrated water discharging direct discharging pipeline, and the concentrated water discharging pump 11 is closed until the monitored TDS value is lower than the limit value. Through the connection of the water return electric control valve 7 and the water inlet electric control valve 3, the booster pump extracts the concentrated water in the concentrated water discharge storage tank through the water return electric control valve 7 to prepare pure water, or extracts tap water in the water inlet pipeline 1 of the front filtering channel through the water inlet electric control valve to prepare pure water.

In the present case, the pure water pipeline 10 connected to the pure water port of the reverse osmosis membrane filter cartridge or the nanofiltration membrane filter cartridge 24 may be provided with a post-positioned activated carbon filter cartridge 25 and a post-positioned mineralization filter cartridge, may be provided with only the post-positioned activated carbon filter cartridge 25, or may not be provided with a functional filter cartridge.

In general, a portion of the filtration channel before the water inlet end of the reverse osmosis membrane liner or the nanofiltration membrane liner 24 in the filtration channel is referred to as a pre-filtration channel. The booster pump can be located at any position of the pre-filtering channel, including the water inlet and outlet pipelines of the first stage pre-filtering container 21 and the water inlet and outlet pipelines of the second and third stage pre-filtering containers 22 and 23, but is preferably located in the pipeline between the pre-filtering container and the reverse osmosis membrane filtering container or the nanofiltration membrane filtering container, so as to ensure that the reverse osmosis membrane filtering container or the nanofiltration membrane filtering container has enough operating water pressure, and the related filtering container in the pre-filtering channel bears lower water pressure (service water pipe pressure). In addition, two or three preposed filter containers can be combined to form a composite preposed filter container.

As long as the joint of the water outlet end of the water return pipeline of the water return electronic control valve 7 connected in series and the preposed filtering channel is positioned in the preposed filtering channel before the booster pump, the water outlet end of the water return electronic control valve is connected with the water inlet pipeline of the booster pump. In the present case, the positions of the water inlet and outlet ends of the first-stage pre-filter liner 21 and the positions of the water inlet and outlet ends of the second-stage pre-filter liner 22 and the third-stage pre-filter liner 23 (before the booster pump) are both regarded as "water inlet pipelines of the booster pump", wherein the booster pump 4 is preferably located in a pipeline between the pre-filter liner 2 and the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24.

In addition, the water outlet end of the water return electric control valve 7 in the preposed filtering channel can also be connected with the water inlet and outlet pipelines of the first-stage preposed filtering container 21, and the number of the preposed filtering containers in the water inlet and outlet pipelines of the second-stage preposed filtering container 22 can be set according to requirements. Usually 1-4.

The water inlet end of the backwater electric control valve 7 is connected with the water outlet pipeline at the lower part of the concentrated water discharging storage water tank 15, and is connected with the water outlet pipeline of the concentrated water discharging flow control component 5 through the water inlet end of the concentrated water storage water tank 15.

In the present case, the expression that the monitoring probe of the total solubility solid monitoring device 8 is positioned at the water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner includes that the monitoring probe is positioned in a connecting pipeline between the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner and the front filter liner, and is preferably positioned in a pipeline between the booster pump behind the front filter liner and the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner. The expression that the monitoring probe of the total solubility solid monitoring device 8 is positioned at the concentrate discharge port of the reverse osmosis membrane filter cartridge or the nanofiltration membrane filter cartridge includes the water inlet and outlet pipelines of the concentrate discharge flow rate control part 5, wherein the monitoring probe is preferably positioned in the water inlet pipeline of the concentrate discharge flow rate control part 5. The two monitoring modes described above belong to the direct monitoring mode.

In this embodiment, when the TDS preset value exceeds normal TDS (if initial numerical value under the normal operating mode) value of monitoring probe position department is more, arrange dense water pump unit 11 and start less, arrange that dense water TDS concentration is higher and strain the courage to reverse osmosis membrane or receive the influence on filter material layer of filter courage of membrane great.

In the present case, the total soluble solids monitoring device 8 is set to either a single limit or a double limit. For a single limit value, one limit value is adopted to control the operation or the closing of the concentrated water discharging pump device 11; for the double limits, one set of limits is used for controlling the operation and the closing of the drain pump device 11, respectively.

Normally, the operation of the drain pump 11 is controlled by using the upper limit value having a large value, and the drain pump 11 is controlled to be turned off by using the lower limit value having a small value.

Example 2. A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module with a pure water pipeline, the U-shaped filter container bin and a loose joint device with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filtering channel for normal operation of each filter liner, wherein the front filter liners connected in series form a front filtering channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device.

In the attached figure 2, the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 is provided with three water gaps: the water inlet of the water-saving filter is connected with a preposed filter liner through a booster pump 4, the pure water port of the water-saving filter is connected with a pure water pipeline 10, a concentrated water discharging pipeline 9 connected with a concentrated water discharging port of the water-saving filter is provided with a concentrated water discharging flow control component 5 and a reverse water stop valve device 6, and the water outlet end of the reverse water stop valve device 6 is connected with the front end 1 of the preposed filter channel to form a concentrated water discharging recycling pipeline system. The water purifier also comprises a concentrated water discharging direct discharging pipeline 12 provided with a concentrated water discharging pump 11 and a total dissolved solid monitoring device 8 provided with a TDS limit value; the monitoring probe of the total solubility solid monitoring device 8 is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24; the water inlet end of the concentrated water discharge pump 11 is connected with a pipeline between the concentrated water discharge flow control component 5 and the reverse water stop valve device 6; in the normal operation's filtration passageway, when the TDS numerical value that the total solid monitoring device of solubility 8 monitored is less than the limit value after, this drainage concentrate pump 11 of electrically controlled device control is closed and reverse stop valve device 6 is crossed water, and the leading filtration passageway is crossed with the drainage concentrate that reverse stop valve device 6 flows out to the running water of registering one's residence in leading filtration passageway water intake pipe 1. After the TDS numerical value of the total solid monitoring device of dissolubility 8 monitoring is higher than the limit value, this concentrated water pump 11 operation of arranging is controlled to electrically controlled device, strains the courage with reverse osmosis membrane or receives the discharge concentrate straight line pipeline 12 of the concentrated water mouth of 24 row of filter courages of filter courage of filter membrane, closes this concentrated water pump 11 until the TDS numerical value of monitoring is less than the limit value after.

In view of the fact that the water inlet end of the concentrated water discharging pump 11 is connected with the water outlet pipeline of the concentrated water discharging flow control component 5, in a filtering channel in normal operation, no matter whether the concentrated water discharging pump device 11 operates or not, the concentrated water discharging flow control component 5 has a concentrated water discharging flow limiting effect, and water entering from the water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 respectively flows out from the pure water port and the concentrated water port. Therefore, in this embodiment, whether the concentrated water discharge pump device 11 is operated or not only affects the recycling state of the concentrated water discharge in the concentrated water discharge recycling pipeline system, but also does not affect the water outlet of the pure water port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner.

On the basis of the embodiments 1 and 2, the water return control device of the water purifier is a reverse stop valve or a water return electric control valve, and the corresponding concentrated discharge water recycling pipeline system forms two specific recycling modes, wherein:

the first 'backwater reverse stop valve utilization' mode: the water outlet end of the water return pipeline provided with the reverse stop valve 6 is connected in the preposed filtering channel.

For example, the backwater control device employs a reverse water stop valve device 6. The water outlet end of the reverse water stop valve device 6 is connected with a water inlet pipeline of the first-stage preposition 21. In the operation process of the machine, the household tap water of the water inlet pipeline 1 of the machine passes through the first-stage prepositive filter liner, the second-stage prepositive filter liner and the third-stage prepositive filter liner under the action of pipe pressure and the concentrated discharge water flowing through the reverse water stop valve device of the water return pipeline, enters the water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 under the action of the booster pump 4, and then is divided into two paths, and a small part of the household tap water flows out through the pure water port and the pure water pipeline 10; most of the concentrated water flows out from the concentrated water discharging port and is reused through the concentrated water discharging flow control part 5 and the reverse water stop valve device 6. As the concentrate discharge water in the return line 13 is repeatedly used, the concentration (i.e., value) of the soluble total solids in the concentrate discharge water becomes higher and higher, which affects the life of the associated filter cartridge, and thus the concentrate discharge water exceeding the preset limit must be directly discharged. At this time, the concentrate discharge pump 11 operates to discharge the concentrate discharge water at the concentrate discharge port of the reverse osmosis membrane filter cartridge or the nanofiltration membrane filter cartridge 24 under pressure, and when the TDS value monitored by the total soluble solids monitoring device 8 is lower than the limit value, the concentrate discharge pump device 8 is turned off, so that the concentration of the total soluble solids of the concentrate discharge water in the return water pipeline 13 is reduced to a lower and usable state again.

The second 'backwater electric control valve utilization' mode: a backwater electric control valve 7 is adopted. The water purifier adopting the mode also comprises a water storage tank 15 and a water inlet electric control valve 3; the water storage tank 15 is connected in series in a pipeline between the backwater electric control valve 7 and the concentrated water discharge flow control component 5; the water inlet electric control valve 3 is arranged in the front filtering channel; the backwater electric control valve 7 is communicated with the water inlet electric control valve 3 alternatively. For example, the backwater control device adopts a backwater electric control valve and is alternatively communicated with a water inlet electric control valve arranged in the front filtering channel. The water outlet end of the water return electric control valve 7 is connected with a pipeline between the front filter liner 23 and the booster pump 4 positioned behind the front filter liner. When the booster pump 4 pumps the concentrated water in the water return pipeline 13, the water inlet electric control valve 3 for controlling the household tap water in the water inlet pipeline 1 in the preposed filtering channel is closed; when the booster pump 4 pumps the household tap water in the front filtering channel (the water inlet electric control valve 3 is conducted), the water return electric control valve 7 is closed. On the basis, the concentrated discharge water exceeding the preset limit value is directly pressurized and discharged out of the concentrated discharge water port of the upper module through the concentrated discharge water pump device 11.

In the running process of the machine, the water inlet electric control valve 3 is closed, the water return electric control valve 7 is communicated, and the booster pump 4 positioned at the water inlet end of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 pumps the drained concentrated water stored in the water storage tank 15 through the water return pipeline 13 to prepare pure water. When the water storage tank 15 stores little or no concentrated discharge water, the electric control device controls the water inlet electric control valve 3 to be conducted and the water return electric control valve 7 to be closed, and the booster pump 4 pumps the household tap water in the water inlet pipeline 1 through the preposed filtering channel to prepare pure water. As the concentrate discharge in the return line 13 is recycled, the concentration (i.e., value) of the soluble total solids in the concentrate discharge becomes higher and higher until a preset limit value is exceeded. At this time, the concentrate discharge pump 11 operates to discharge the concentrate discharge water at the concentrate discharge port of the reverse osmosis membrane filter cartridge or the nanofiltration membrane filter cartridge 24 under pressure, and when the TDS value monitored by the total soluble solids monitoring device 8 is lower than the limit value, the concentrate discharge pump 11 is turned off, so that the concentration of the total soluble solids in the concentrate discharge water in the return line 13 is reduced to a lower and usable state again.

In embodiment 1 or 2, no matter the "reverse stop valve utilization of water return" mode or the "electric control valve utilization of water return" mode is adopted, the position of the monitoring probe 7 of the total solubility solid monitoring device 8 is preferably placed in the water inlet pipeline of the concentrated water discharge control component 5 of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24, and is placed in the water inlet pipeline of the concentrated water discharge control component 5, and is selected in the pipeline between the booster pump and the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24.

Example 3. On the basis of the embodiments 1 and 2, the water purifier also comprises a purified water pipeline 18 provided with a purified water control valve 17; the water inlet end of the purified water control valve 17 is connected with the tail end of the preposed filtering channel.

As a modification of the present embodiment, the pure water pipeline 10 is provided with a pure water control valve 16; the water outlet end of the purified water control valve 17 is communicated with the water outlet end of the purified water control valve 16, and the purified water control valve 17 and the purified water control valve 16 are in a closed state or a water outlet state (see the attached figure 3).

Example 4. A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module with a pure water pipeline, the U-shaped filter container bin and a loose joint device with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filter channel for normal operation of each filter liner, wherein a front filter liner and a water inlet electric control valve which are connected in series form a front filter channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device; the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner is provided with three water ports: the water inlet of the water tank is connected with the preposed filter liner through a booster pump, the pure water port of the water tank is connected with a pure water pipeline, the concentrated water discharging port of the water tank is connected with a concentrated water discharging pipeline provided with a concentrated water discharging flow control component and a concentrated water discharging storage tank, the water inlet pipeline of the concentrated water discharging storage tank provided with a water quantity monitoring device (not shown) is connected with the water outlet end of the concentrated water discharging flow control component, and the water outlet pipeline at the lower part of the concentrated water discharging storage tank is connected with the water inlet pipeline of the booster pump to form a.

The water quantity monitoring device can be a water level monitoring device for monitoring the water level of the concentrated water in the concentrated water discharging storage tank, and can also be a flow monitoring device for monitoring the quantity of the concentrated water flowing into the concentrated water discharging storage tank.

The water purifier also comprises a concentrated water discharge pump 11 and a purified water pipeline 18 provided with a purified water control valve 17; the water inlet pipeline and the water outlet pipeline of the concentrated water discharging pump 11 are respectively connected with the water outlet pipeline at the lower part of the concentrated water discharging storage tank 15 and the water inlet pipeline of the booster pump 4, and the water inlet end of the water purifying pipeline 18 arranged on the upper module is respectively connected with the tail end of the preposed filtering channel and the water outlet pipeline of the concentrated water discharging pump 11; in the process of opening an additional pure water control valve and operating a filtering channel, the electric control device monitors the amount of the concentrated discharge water in the concentrated discharge water storage tank 15 through a water amount monitoring device: the electric control device controls the operation of the concentrated water discharging pump 11 and the booster pump 4 after the lower control limit is higher than the lower control limit, and closes the water inlet electric control valve 3 in the pre-filtering channel; the electric control device controls the water inlet electric control valve 3 and the booster pump 4 in the pre-filtering channel to operate and closes the concentrated water discharging pump 11 after the water inlet electric control valve is lower than the lower control limit; after the purified water control valve 17 is opened, the electric control device monitors the amount of the discharged concentrated water in the discharged concentrated water storage 15 through the water amount monitoring device: the electric control device controls the operation of the concentrated water discharge pump 11 and closes the water inlet electric control valve 3 in the pre-filtering channel after the lower control limit is higher than the lower control limit; the electric control device controls the water inlet electric control valve 3 in the pre-filtering channel to operate and close the concentrated water discharge pump 11 after the lower control limit is reached (see the embodiments 1 and 2 for relevant contents).

Example 5. On the basis of the embodiment 4, the water purifier further comprises a soluble total solid monitoring device 8 with a limit value, a water inlet electric control valve 51 and a concentrated water discharge straight discharge pipeline 12 with a water discharge control device; the monitoring probe of the total solubility solid monitoring device 8 is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24; the water inlet electric control valve 51 is connected in a pipeline between the concentrated water discharge flow control component 5 and the concentrated water discharge storage tank 15; the water inlet end of the drainage control device is also connected with the water outlet end of the drainage concentration water flow control component 5, and the drainage control device is either a drainage electric control valve 11a or a drainage concentration water pump 11; in the filtering channel in normal operation, when the TDS value monitored by the total dissolved solids monitoring device 8 is lower than the limit value, the electric control device controls the water inlet electric control valve 51 to be switched on and switches off the drainage control device; when the monitoring value of the total dissolved solids monitoring device is higher than the limit value, the electric control device controls the water inlet electric control valve 51 to be closed and switches on the drainage control device to operate, the concentrated drainage water at the water outlet end of the concentrated drainage water flow control part 5 is discharged and drained from the concentrated drainage water direct drainage pipeline 12, and the electric control device controls the water inlet electric control valve 51 to be switched on and switches off the drainage control device until the TDS value monitored by the total dissolved solids monitoring device 8 is lower than the limit value.

In embodiments 1, 2, 3, and 5, it is preferable that the concentrate discharge straight line 12 be provided on the upper module.

Example 6. In addition to the embodiments 3, 4 and 5, the pure water pipeline 10 is provided with a pure water control valve 16; the outlet end of the purified water control valve 17 is communicated with the outlet end of the purified water control valve 16, that is, the purified water pipeline 10 and the purified water pipeline 18 are combined into a single purified water outlet pipeline 14 through two control valves. The pure water control valve 17 and the pure water control valve 16 are either both in a closed state or in an outlet state (see fig. 3).

Example 7. On the basis of the embodiments 1, 2, 3, 4, 5 and 6, the U-shaped filter container bin is provided with a U-shaped filter container cavity for placing the filter container and an implementation cavity for placing the water passing control component; the filtering container fixed in the filtering container cavity is connected through a fastening device, a space between the U-shaped filtering container cavity and the filtering container cavity forms a concentrated water discharging storage tank, and a water inlet pipeline and a water outlet pipeline are respectively communicated with related pipelines (shown in figures 1 and 3) in a concentrated water discharging recycling pipeline system.

Example 8. On the basis of the embodiments 1, 2, 3, 4, 5, 6 and 7, the upper module is provided with a vertical through hole structure; the filter liner fixed in the U-shaped filter liner bin comprises a self-supporting filter liner provided with an upper fixing structure and a filter liner fixing device, the upper module is matched with the U-shaped filter liner bin up and down, and the through hole structure of the upper module is correspondingly matched with the upper fixing structure of the self-supporting filter liner; the upper fixing device is an independent part separated from the upper module or a movable part movably connected with the upper module to form a whole and only limited to the rotation on the upper module, and is connected and matched with an upper fixing structure corresponding to the self-supporting filter liner through a vertical through hole structure or in a threaded connection mode or a rotary clamping connection mode to form a loose joint device, so that the upper module and the U-shaped filter liner bin are connected to form a whole; the upper fixing device is separated from the connecting and matching of the self-supporting filter liner upper fixing structure, and the upper module is separated from the U-shaped filter liner bin.

Example 9. Example 9 is the most preferred example. On the basis of the embodiments 1, 2, 3, 4, 5, 6, 7 and 8, the U-shaped filter container cabin is provided with an upper fastening structure; the upper module is provided with a vertical through hole structure; the upper module is matched with the U-shaped filter container bin up and down, and the through hole structure of the upper module is correspondingly matched with the upper fixing structure of the U-shaped filter container bin; the upper fixing device is an independent part separated from the upper module or a movable part movably connected with the upper module to form a whole and only limited to the rotation on the upper module, and is connected and matched with an upper fixing structure corresponding to the U-shaped filter container bin through a vertical through hole structure or in a threaded connection mode or a rotary clamping connection mode to form a loose joint device, so that the upper module and the U-shaped filter container bin are connected to form a whole; the upper fixing device is disengaged from the connecting and matching of the U-shaped filtering liner bin upper fixing structure, and the upper module is separated from the U-shaped filtering liner bin.

Generally, the ratio of concentrated discharge water discharged from a concentrated discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 to pure water flowing out of a pure water port is about 3: 1, and the quality of the concentrated discharge water is the pure water filtered by the preposed filter liner, so that the concentrated discharge water can be used as clean water for washing, a large amount of waste of water resources caused by directly discharging the concentrated discharge water into a sewer pipeline is avoided, and the loss of a filter liner filter material layer generated by correspondingly treating the concentrated discharge water by the preposed filter liner is reduced.

In the above embodiments, the upward insertion water ports (including the filter liner water port for insertion) arranged in the filter channel are collectively referred to as a lower insertion water port; the downward plugging water port (including the filter liner water port for plugging) is commonly called as an upper plugging water port.

The engine base can be a U-shaped filter container bin, can also be provided with a control module, and can also be a filter container (comprising a self-supporting filter container) fixed on the engine base or the U-shaped filter container bin. The butt joint mode of the filter liner and the water gap of the engine base is conventional three modes:

1. the filter liner is placed from top to bottom and is connected and fixed on the bottom surface of the U-shaped filter liner bin through a filter liner fastening device, or a closed shell or an open shell with a cylinder cover is arranged; the filter container fastening device is of a threaded connection structure, a rotating connection structure or a standard part connection structure; the upward butt joint water gap of each filter container is connected with the downward butt joint water gap of the U-shaped filter container bin bottom surface and the water passing pipeline connected with the water passing control component in a sealing way.

2. Each filter container is put from top to bottom and is connected and fixed on the bottom surface of the U-shaped filter container bin through a filter container fastening device. The upper module is provided with a water passing control part and a water passing pipeline communicated with the water passing control part and a downward upper butt joint water gap; the filter liner comprises a filter liner which is arranged upwards and is butted with the water gap downwards; when the upper module and the lower module are contacted and matched with each other, the upward downward butt joint water gap of the filter liner and the downward upward plug-in water gap of the upper module are in mutual sealing butt joint.

3. The upper module is provided with a downward upper butt joint water gap and a water passing pipeline; an upward downward butt joint water gap and a water passing pipeline are arranged on the bottom surface of the U-shaped filter liner bin; the filter liner is respectively provided with an upward lower butt joint water gap and a downward upper butt joint water gap; after the filter liner is fixed on the bottom surface of the U-shaped filter liner bin through the filter liner fastening device, the downward upper butt joint water gap of the filter liner is mutually sealed and butted with the upward lower plug-in water gap and the water passing pipeline of the bottom surface of the U-shaped filter liner bin; when the upper module is contacted and matched with the upper part and the lower part of the U-shaped filter liner bin, the upward lower butt joint water gap of the filter liner is mutually sealed and butted with the downward upper splicing water gap of the upper module; the water passing control part is arranged in a water passing pipeline of the upper module, or in a water passing pipeline on the bottom surface of the U-shaped filter container bin, or in respective water passing pipelines on the bottom surfaces of the upper module and the U-shaped filter container bin respectively.

In the above embodiment, the U-shaped filter container bin may be a single-cavity structure for placing the filter container, or a double-cavity structure for placing the filter container and the water passing control component. Wherein, for the single-cavity structure, the filter liner or the filter liner and some water passing control components are positioned in a cavity; if the single-chamber structure is set as a water storage cavity, whether the water passing control part arranged in the single-chamber structure needs to be subjected to waterproof treatment or not is considered, a sealing waterproof structure is added if necessary, or the water passing control part is moved out of the water storage cavity. For a dual chamber configuration, the associated water control member is placed within a separate utility chamber. Even if the water storage cavity is arranged, the U-shaped filter container cabin for placing the filter container is only required to be arranged into the water storage cavity, and the facility cavity for placing the water passing control component is still reserved.

As a preferable double-cavity structure, the booster pump and the concentrated water discharging pump device are arranged in the facility cavity, and the filter liner cavity is arranged as the water storage cavity.

As a further improvement of embodiment 7 or 8, the upper module is provided with an external pure water port connected to the pure water pipeline, and an external concentrated water discharge port connected to the water outlet pipeline of the concentrated water discharge pump device, so that the upper module can be conveniently disassembled and assembled. The external pure water port and the external concentrated water discharging port of the machine overhead module are respectively connected with corresponding external hoses. When the loose joint device is disconnected, the upper module and the U-shaped filter container bin are separated, and then the upper module and the external hose are naturally moved away together, so that the U-shaped filter container bin is convenient to assemble and disassemble the filter container, clean the water storage cavity and replace the water passing control component.

In addition, because the external concentrated water discharging port arranged on the upper module is higher than the U-shaped filter container bin, concentrated water discharged from the concentrated water discharging port of the reverse osmosis membrane filter container or the nanofiltration membrane filter container is pressurized and discharged out of the external concentrated water discharging port and the external hose through a concentrated water discharging pump device. Especially for the under cabinet type machine, when the pressurized water outlet pipeline is communicated with the pure water pipeline to form the water outlet pipeline, the concentrated discharge water at the concentrated discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner is pressurized and discharged out of the pure water faucet on the counter through the concentrated discharge pump device.

In the above embodiments relating to the loose joint device, which the machine acts between the upper module and the U-shaped filter container bin (including the self-supporting filter container), is mutually matched and integrated by several connecting structures of the following two types of connecting modes.

In the first mode: when the movable connection device between the upper module and the U-shaped filter container bin is connected in a threaded connection mode, the U-shaped filter container bin can be provided with a bolt structure which is connected and matched with the nut piece. And a bolt structure on the U-shaped filter container bin penetrates through the through hole structure of the upper module to be connected and matched with the nut piece so as to connect the upper module and the U-shaped filter container bin into a whole. In addition, the bolt structure can be set into a screw to be connected and matched with a nut member with a limiting step, which acts on the upper module and penetrates through the through hole structure, so that the upper module and the U-shaped filter liner bin are connected into a whole.

In the second mode: when the loose joint device between the upper module and the U-shaped filter container bin is connected in a threaded connection mode, the U-shaped filter container bin can also be provided with a nut structure which is connected and matched with the bolt piece. And the nut structure on the U-shaped filter container bin is connected and matched with a bolt piece which acts on the upper module and penetrates through the through hole structure to connect and connect the upper module and the U-shaped filter container bin into a whole.

On the basis, the nut structure can be arranged into a step structure and penetrates through the through hole structure of the upper module to be connected and matched with a bolt piece (screw) acting on the upper module to connect and combine the upper module and the U-shaped filter container bin into a whole.

As a derived simple device of a thread structure, the upper module can also adopt a fastening standard piece to be connected and matched with the corresponding thread structure of the U-shaped filter container cabin.

The third mode: when the loose joint device between the upper module and the U-shaped filter container bin is connected in a rotary clamping connection mode, the U-shaped filter container bin can also be provided with a circular arc radial fixing tooth buckle structure which is in rotary joint fit with the circular arc radial tooth buckle, a gap is arranged between the two circular arc radial fixing tooth buckle structures, the circular arc radial tooth buckle structures which penetrate through the through hole structure on the upper module are inserted and rotated, the circular arc radial fixing tooth buckle structures are in mutual rotary joint fit with each other to form inner buckle tooth buckle connection fit, and the upper module and the U-shaped filter container bin are connected into a whole.

In addition, the positions of the arc-shaped radial tooth buckles, the arc-shaped radial fixing tooth buckles and the gaps between the arc-shaped radial fixing tooth buckles in the third screwing mode can be interchanged to form a fourth mode, and the upper module and the U-shaped liner filter bin can be connected into a whole through the inner buckle type tooth buckle connecting structure.

The fourth mode: when the upper module is connected with the U-shaped filter container cabin in a rotary clamping connection mode, the U-shaped filter container cabin can also be a circular arc radial tooth buckle structure which is in rotary connection and matching with a circular arc radial fixed tooth fastener, a gap is arranged between the two circular arc radial tooth buckle structures and used for inserting and rotating the circular arc radial fixed tooth fastener, the circular arc radial tooth buckle structure is in mutual rotary connection and matching to form inner buckle type tooth buckle connection and matching, and the upper module and the U-shaped filter container cabin are connected into a whole.

In view of the fact that the circular arc radial tooth fasteners and the circular arc radial fixed tooth fastener structures related to the internal buckle type tooth fastener connecting structure are matched with each other in a screwing mode, and therefore, the circular arc radial tooth fasteners and the circular arc radial fixed tooth fastener structures are not intrinsically different (only the connecting structures are different), the scheme provides that in an internal buckle type tooth fastener connecting mode that an upper module and a U-shaped filter liner bin are mutually inserted and screwed, the structure placed in the U-shaped filter liner bin is uniformly determined to be the circular arc radial fixed tooth fastener structure; the matched part is determined as a circular arc radial tooth fastener, namely, the fourth screwing and clamping connection mode is regarded as a derivative mode of the third screwing and clamping connection mode.

In the scheme, the upper fixing device adopting two connection modes of a rotary clamping structure and a thread structure can be an independent part separated from the upper module, and also can be a movable part movably connected with the upper module to form a whole and only limited to rotate on the upper module. A card selection configuration is preferred.

When the movable connection device adopts a swinging locking device, a locking piece of the swinging locking device is arranged on the upper module through a swinging shaft, the locking piece swings and elastically deforms to be matched with a clamping seat structure on the U-shaped filter container bin, and the upper module and the U-shaped filter container bin are fixedly connected together. The lock catch piece is opened, so that the connection and the matching between the upper module and the U-shaped filter container bin can be released. The swing locking device comprises a single-shaft swing locking device, a lock catch piece and a connecting rod structure, wherein the lock catch piece is provided with one end hinged to the swing shaft, the other end of the single-shaft swing locking device is connected with the clamping seat structure in a matched mode through swinging and elastic deformation, the lock catch piece is provided with the lock catch piece and the connecting rod structure, the lock catch piece matched with the clamping seat structure and the other end of the connecting rod structure matched with the swing shaft in a hinged mode are hinged to each other through a non-fixed swing shaft, and the double-shaft swing.

In addition, the swinging locking device can also arrange the locking piece on the U-shaped filter container bin through the swing shaft, the clamping seat structure is arranged on the upper module, the upper module and the U-shaped filter container bin (filter container) can be connected into a whole, and a plurality of upper butt joint water gaps of the water passing pipeline of the upper module and lower butt joint water gaps of the corresponding filter container are simultaneously in sealing butt joint.

Similar to the single-swing locking device, the rear end of one of the two parts of the upper module and the U-shaped filter container bin, which is provided with the swing hook piece, is hinged with the fixed shaft, and the swing hook at the front end of the upper module is in contact fit with the clamping seat structure on the one part or the locking column serving as the clamping seat structure under the action of the elastic resetting mechanism. In addition, the locking hook device can also adopt that one of the two components is provided with a moving hook part which is in contact fit with a clamping seat structure on the other component or a locking column serving as the clamping seat structure under the action of a spring, the upper module and the U-shaped filter liner bin (filter liner) are connected into a whole, and a plurality of upper butt joint water gaps of the water passing pipeline of the upper module are simultaneously in sealing butt joint with lower butt joint water gaps of the corresponding filter liner.

When the loose joint device is an elastic buckle device, a first part of the upper module and a first part of the U-shaped filter container bin are provided with a rigid crease connecting structure and a lock catch piece, and are in elastic locking fit with a second part of the U-shaped filter container bin, wherein the rigid crease connecting structure is a rigid body made of the same material and provided with thicker materials at two ends, and the middle part of the rigid crease connecting structure is provided with a thinner material and an elastic buckle device connected into a whole by the crease structure. The lower end of a lock catch piece of the elastic buckle device is connected to a first component through a rigid crease connecting structure, and the upper end buckle of the lock catch piece is in locking fit or disengagement with another component through self swinging and elastic deformation of the lock catch piece.

The loose joint device used between the upper module and the U-shaped filter container bin can be a swing locking device or a locking hook device or an elastic buckle device except two connection modes of a rotary clamping structure and a thread structure, wherein the upper fixing device can be a structure arranged on the upper module or a movable part movably connected with the upper module and integrated with the upper module.

In the present case, the movable connection device can be used for one water purifier in five modes, namely, a swinging locking device, a locking hook device, an elastic buckling device, a screwing structure or a threaded structure, and can also be used for two to five movable connection modes in one water purifier.

The filter container fixed on the U-shaped filter container bin is also regarded as a part of the U-shaped filter container bin. The loose joint device acting between the upper module and the filter container is also regarded as a loose joint device acting between the upper module and the U-shaped filter container bin.

In the scheme, a part of structure (which can be a structure connected with the upper module, an independent part separated from the upper module, or a movable part movably connected with the upper module to form a whole and only limited to rotate on the upper module) arranged on the upper module in the loose joint device is regarded as an upper fixing device; and partial structures arranged on the U-shaped filter container cabin and the self-supporting filter container in the loose joint device are taken as upper fastening devices.

In the scheme, the concentrated water discharging pump is a concentrated water discharging pump with water inlet and water outlet not communicated when the concentrated water discharging pump is in a closed state. Therefore, the water inlet end and the water outlet end of the concentrated water discharge pump device are separated in the closed state, and the water inlet end and the water outlet end are conducted in the running state.

The upper module in each of the above embodiments may also be an "upper control box" structure provided with an openable upper cover, that is, the "upper control box" with the upper cover is also regarded as an upper module structure in this case.

In the above embodiments, the fitting limit for limiting the final fitting position of the upper and lower insertion of the upper module and the U-shaped filter container cabin is a boss structure, and the fitting limit may be set on the upper module, the U-shaped filter container cabin, or the upper module and the U-shaped filter container cabin.

The U-shaped filter chamber in the above embodiments may further have a structure capable of opening the upper cover, that is, the U-shaped filter chamber with the upper cover is also regarded as a U-shaped filter chamber structure in the present application. At the moment, the upper module is arranged in the U-shaped filter container bin with the upper cover, is positioned on the filter container and is fixedly connected with the U-shaped filter container bin with the upper cover through the loose joint device, and the upper module is arranged in the U-shaped filter container bin after the upper cover of the U-shaped filter container bin is closed.

In the above embodiments, the number of the pre-filter liner and the number of the functional filter liners arranged behind the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner do not affect the implementation of the technical scheme. The number of the preposed filter liners can be 1-4; 1-3 post-positioned functional filter liners can be selected. In addition, the functionalized filter liner is not required to be arranged.

The nanofiltration membrane filter container is used as a branch of a reverse osmosis membrane (RO membrane) filter container. In the scheme, the reverse osmosis membrane filter liner comprises a nanofiltration membrane filter liner. In the above embodiments, the reverse osmosis membrane filter cartridge may be a single reverse osmosis membrane filter cartridge, or may be a combination of two reverse osmosis membrane filter cartridges. As the combination of two reverse osmosis membrane filter liners, the combination can be a parallel combination of two reverse osmosis membrane filter liners, and can also be a one-stage two-section type connection combination: the concentrated water discharging port of the previous reverse osmosis membrane filter liner is connected with the water inlet of the next reverse osmosis membrane filter liner; the water outlet of the former reverse osmosis membrane filter liner is connected with the water outlet of the latter reverse osmosis membrane filter liner; the concentrated water discharging port of the back reverse osmosis membrane filter liner is connected with a concentrated water discharging pipeline provided with a concentrated water discharging flow control device.

On the basis of the above embodiments, the protection scope of the present application includes, but is not limited to, the above embodiments. The technical means and principles disclosed in the above embodiments may be recombined to derive new embodiments as required, and are also within the scope of the present application.

Claims (10)

1. A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module with a pure water pipeline, the U-shaped filter container bin and a loose joint device with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filtering channel for normal operation of each filter liner, wherein the front filter liners connected in series form a front filtering channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device; the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner is provided with three water ports: the water inlet of the water purifier is connected with a front filter liner through a booster pump, a pure water port of the water purifier is connected with a pure water pipeline, a concentrated water discharging pipeline connected with a concentrated water discharging port of the water purifier is provided with a concentrated water discharging flow control component, a concentrated water discharging storage tank and a return water electric control valve which is communicated with an electric water inlet valve in a selective way, a water inlet pipeline of the concentrated water discharging storage tank provided with a water quantity monitoring device is connected with a water outlet end of the concentrated water discharging flow control component, a water inlet end and a water outlet end of the return water electric control valve are respectively connected with a water outlet pipeline at the lower part of the concentrated water discharging storage tank and a water inlet pipeline of the booster pump to form; after the pure water control valve is opened, the electric control device monitors the amount of concentrated water discharged in the concentrated water discharging storage tank through the water amount monitoring device: the electric control device controls the conduction water return electric control valve and the booster pump to operate after the water inlet electric control valve is higher than the lower control limit, and closes the water inlet electric control valve in the pre-filtering channel; the electric control device controls the water inlet electric control valve and the booster pump in the front filtering channel to operate and closes the water return electric control valve after the water inlet electric control valve and the booster pump are lower than the lower control limit, and the electric control device is characterized by further comprising a concentrated water discharge direct discharge pipeline provided with a concentrated water discharge pump and a total dissolved solid monitoring device provided with a TDS limit value; a monitoring probe of the total solubility solid monitoring device is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner; the water inlet end of the concentrated water discharge pump is connected with a water outlet pipeline of the concentrated water discharge flow control component; in the normally operating filtering channel, when the TDS value monitored by the total soluble solid monitoring device is lower than a limit value, the electric control device controls the concentrated water discharge pump to be closed and the concentrated water discharge recycling pipeline system to operate; when the TDS value monitored by the total soluble solid monitoring device is higher than the limit value, the electric control device controls the concentrated water discharge pump to operate, so that concentrated water discharged from the water outlet end of the concentrated water discharge flow control component is discharged to the concentrated water discharge direct-discharge pipeline, and the concentrated water discharge pump is closed until the monitored TDS value is lower than the limit value.

2. A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module with a pure water pipeline, the U-shaped filter container bin and a loose joint device with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filtering channel for normal operation of each filter liner, wherein the front filter liners connected in series form a front filtering channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device; the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner is provided with three water ports: the water inlet of the device is connected with a preposed filter liner through a booster pump, the pure water port of the device is connected with a pure water pipeline, the concentrated water discharging port of the device is connected with a concentrated water discharging pipeline provided with a concentrated water discharging flow control component and a reverse water stop valve device, and the water outlet end of the reverse water stop valve device is connected with the front end of a preposed filtering channel to form a concentrated water discharging recycling pipeline system; a monitoring probe of the total solubility solid monitoring device is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner; the water inlet end of the concentrated water discharge pump is connected with a pipeline between the concentrated water discharge flow control component and the reverse water stop valve device; in the filtering channel in normal operation, when the TDS value monitored by the total dissolved solids monitoring device is lower than a limit value, the electric control device controls the concentrate discharge pump to be closed and the reverse water stop valve device to discharge water; when the TDS value monitored by the total soluble solid monitoring device is higher than the limit value, the electric control device controls the concentrated water discharging pump to operate, the concentrated water discharging pipeline is used for discharging concentrated water at the outlet end of the concentrated water discharging flow control component, and the concentrated water discharging pump is closed until the monitored TDS value is lower than the limit value.

3. The water purifier with the overhead module, the U-shaped filter container bin and the concentrated water discharging pump as claimed in claim 1 or 2, further comprising a purified water pipeline provided with a purified water control valve; the water inlet end of the purified water control valve is connected with the tail end of the preposed filtering channel.

4. The water purifier with the overhead module, the U-shaped filter chamber and the concentrated water discharging pump as claimed in claim 3, wherein the water outlet pipeline is provided with a pure water and water control valve; the water outlet end of the pure water control valve is communicated with the water outlet end of the pure water control valve, and the two control valves are in a closed state or a water outlet state.

5. A water purifier with an upper module, a U-shaped filter container bin and a concentrated water discharge pump comprises a plurality of filter containers including a front filter container and a reverse osmosis membrane filter container or a nanofiltration membrane filter container, corresponding fastening devices, an electric control device, a water passing control part, a water passing pipeline, an upper module with a pure water pipeline, the U-shaped filter container bin and a loose joint device with an upper fixing device and an upper fixing structure; a plurality of filter liners, a booster pump and related water passing control components are connected through water passing pipelines to form a filter channel for normal operation of each filter liner, wherein a front filter liner and a water inlet electric control valve which are connected in series form a front filter channel; the fastening device is either a threaded connection structure, a rotating connection structure or a standard component connection structure; the filter liner is put from top to bottom and is connected and fixed in the U-shaped filter liner bin through a fastening device, and the filter liner forms a part of a filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are additionally arranged on the U-shaped filter liner bin in a sealing butt joint mode, or forms a part of the filter channel through an upward lower butt joint water gap and a downward upper butt joint water gap which are additionally arranged on the upper module in a multi-pipeline layer structure in a sealing butt joint mode, or forms a part of the filter channel through a downward upper butt joint water gap and an upward lower butt joint water gap which are respectively and hermetically butt joint with an upward lower butt joint water gap which is additionally arranged on the U-shaped filter liner bin and a downward upper butt joint water gap which is additionally arranged on the upper module in; the filter liner is provided with a closed shell or an open shell with a cylinder cover and a cylinder body; the upper fixing device arranged on the upper module is movably connected and matched with the upper fixing structure of the U-shaped filter container cabin to form a loose joint device; the movable connecting device is connected with the U-shaped filter container bin into a whole through a rotary clamping structure, a threaded structure, a swinging locking device, a locking hook device or an elastic buckling device; the upper module is separated from the U-shaped filter container bin by the disconnecting loose joint device, and then the filter container is separated from the U-shaped filter container bin by the disconnecting filter container fastening device; the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner is provided with three water ports: the water inlet of the water purifier is connected with a preposed filter liner through a booster pump, the pure water port of the water purifier is connected with a pure water pipeline, the concentrated water discharging port of the water purifier is connected with a concentrated water discharging pipeline provided with a concentrated water discharging flow control component and a concentrated water discharging storage tank, the water inlet pipeline of the concentrated water discharging storage tank provided with a water quantity monitoring device is connected with the water outlet end of the concentrated water discharging flow control component, the water outlet pipeline at the lower part of the concentrated water discharging storage tank is connected with the water inlet pipeline of the booster pump to form a concentrated water discharging recycling pipeline system, and the water quantity monitoring device is either a water level monitoring device or a flow monitoring device and is characterized by also comprising a; the water inlet and outlet pipelines of the concentrated water discharging pump are respectively connected with the water outlet pipeline at the lower part of the concentrated water discharging storage tank and the water inlet pipeline of the booster pump, and the water inlet end of the water purifying pipeline arranged on the upper module is respectively connected with the tail end of the preposed filtering channel and the water outlet pipeline of the concentrated water discharging pump; after the pure water control valve is opened, the electric control device monitors the amount of concentrated water discharged in the concentrated water discharging storage tank through the water amount monitoring device: the electric control device controls the operation of the concentrated water discharging pump and the booster pump after the lower control limit is higher than the lower control limit, and closes the water inlet electric control valve in the pre-filtering channel; the electric control device controls the water inlet electric control valve and the booster pump in the pre-filtering channel to operate and closes the concentrated water discharging pump after the water inlet electric control valve and the booster pump are lower than the lower control limit; in the process of opening the purified water control valve and operating the filtering channel, the electric control device monitors the amount of the concentrated water discharged in the concentrated water discharging storage tank through the water amount monitoring device: the electric control device controls the operation of the concentrated water discharge pump and closes the water inlet electric control valve in the pre-filtering channel after the lower control limit is higher than the lower control limit; and after the water inlet is lower than the lower control limit, the electric control device controls the water inlet electric control valve in the front filtering channel to operate and closes the concentrated water discharging pump.

6. The water purifier with the upper module, the U-shaped filter chamber and the concentrated water discharging pump as claimed in claim 5, further comprising a dissolved total solid monitoring device for setting a limit value, an electric control valve for water inlet, and a concentrated water discharging direct discharging pipeline for setting a water discharging control device; a monitoring probe of the total solubility solid monitoring device is positioned at a concentrated water discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner or at a water inlet of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner; the water inlet electric control valve is connected in a pipeline between the concentrated water discharge flow control component and the concentrated water discharge storage tank; the water inlet end of the drainage control device is also connected with the water outlet end of the concentrated water drainage flow control component, and the drainage control device is either a drainage electric control valve or a concentrated water drainage pump; in the filtering channel in normal operation, when the TDS value monitored by the total dissolved solids monitoring device is lower than a limit value, the electric control device controls the water inlet electric control valve to be switched on and switches off the drainage control device; when the monitoring value of the total soluble solid monitoring device is higher than the limit value, the electric control device controls the water inlet electric control valve to be closed and switches on the drainage control device to operate, the concentrated drainage water at the water outlet end of the concentrated drainage water flow control component is directly drained out of the concentrated drainage water direct drainage pipeline, and the electric control device controls the water inlet electric control valve to be switched on and switches off the drainage control device until the TDS value monitored by the total soluble solid monitoring device is lower than the limit value.

7. The water purifier with the overhead module, the U-shaped filter container bin and the concentrated water discharging pump as claimed in claim 5 or 6, wherein the water outlet pipeline is provided with a pure water and water control valve; the water outlet end of the pure water control valve is communicated with the water outlet end of the pure water control valve, and the two control valves are in a closed state or a water outlet state.

8. The water purifier with the upper module, the U-shaped filter container bin and the concentrated water discharging pump as claimed in claim 1, 2, 4, 5 or 6, wherein the U-shaped filter container bin is provided with a U-shaped filter container cavity for placing the filter container and an implementation cavity for placing the water control component; the filter container fixed in the filter container cavity is connected through a fastening device, a space between the U-shaped filter container cavity and the filter container cavity forms a concentrated water discharging storage tank, and a water inlet pipeline and a water outlet pipeline are arranged and are respectively communicated with related pipelines in a concentrated water discharging recycling pipeline system.

9. The water purifier with the upper module, the U-shaped filter container bin and the concentrated water discharging pump as claimed in claim 1, 2, 4, 5 or 6, wherein the upper module is provided with a vertical through hole structure; the filter liner fixed in the U-shaped filter liner bin comprises a self-supporting filter liner provided with an upper fixing structure and a filter liner fixing device, the upper module is matched with the U-shaped filter liner bin up and down, and the through hole structure of the upper module is correspondingly matched with the upper fixing structure of the self-supporting filter liner; the upper fixing device is an independent part separated from the upper module or a movable part movably connected with the upper module to form a whole and only limited to the rotation on the upper module, and is connected and matched with an upper fixing structure corresponding to the self-supporting filter liner through a vertical through hole structure or in a threaded connection mode or a rotary clamping connection mode to form a loose joint device, so that the upper module and the U-shaped filter liner bin are connected to form a whole; the upper fixing device is separated from the connecting and matching of the self-supporting filter liner upper fixing structure, and the upper module is separated from the U-shaped filter liner bin.

10. The water purifier with the upper module, the U-shaped filter container bin and the concentrated water discharging pump as claimed in claim 9, wherein the U-shaped filter container bin is provided with an upper fastening structure; the upper module is provided with a vertical through hole structure; the upper module is matched with the U-shaped filter container bin up and down, and the through hole structure of the upper module is correspondingly matched with the upper fixing structure of the U-shaped filter container bin; the upper fixing device is an independent part separated from the upper module or a movable part movably connected with the upper module to form a whole and only limited to the rotation on the upper module, and is connected and matched with an upper fixing structure corresponding to the U-shaped filter container bin through a vertical through hole structure or in a threaded connection mode or a rotary clamping connection mode to form a loose joint device, so that the upper module and the U-shaped filter container bin are connected to form a whole; the upper fixing device is disengaged from the connecting and matching of the U-shaped filtering liner bin upper fixing structure, and the upper module is separated from the U-shaped filtering liner bin.

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