CN209899114U

CN209899114U - Increase of service life's straight drinking water equipment

Info

Publication number: CN209899114U
Application number: CN201920082235.8U
Authority: CN
Inventors: 曾跃武
Original assignee: Guangzhou Longze Environmental Protection Equipment Industrial Co Ltd
Current assignee: Guangzhou Longze Environmental Protection Equipment Industrial Co Ltd
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2020-01-07
Anticipated expiration: 2029-01-18

Abstract

The utility model discloses a direct drinking water device with prolonged service life, which comprises a pretreatment device, an RO filtering device and a water storage container which are communicated in sequence, wherein the pretreatment device is communicated with the water storage container through a back washing pipeline, and the back washing pipeline is provided with a water pump; the waste water pipeline is connected to the pretreatment device and guides the waste water to be discharged; under a normal state, the backwashing pipeline and the waste water pipeline are closed; during back flushing, the pretreatment device is isolated from being communicated with the original water pipeline and isolated from being communicated with the RO filtering device, and the back flushing pipeline and the waste water pipeline are both opened to flush the filter element of the pretreatment device. A backwashing pipeline is additionally arranged to be respectively communicated with the pretreatment device and the water storage container, and the pretreatment device is backwashed by using purified water so as to flush out scale deposits of the filter element and discharge the scale deposits through the waste water pipeline, so that the cleanness of the filter element in the pretreatment device is ensured, and the filtering and purifying effects of the direct drinking water are improved; simultaneously the utility model discloses a structure can be effectual the switching between filtration purification work and the back flush work under the realization straight drinking water equipment normality.

Description

Increase of service life's straight drinking water equipment

Technical Field

The utility model relates to a straight drinking water purifying equipment technical field, in particular to extension life's straight drinking water equipment.

Background

Due to the serious pollution to water resources caused by the industrial pollution discharge of human beings, the pollution of household garbage, the deterioration of the natural environment and the like, not only are a plurality of toxic elements which are potentially harmful to health of municipal water in cities, but also natural water in villages is polluted on a large scale. However, water is a source of life, and people can not survive in moistening water, so that the quality of drinking water directly influences the body health of people, the quality of direct drinking water is guaranteed, and the function of perfecting related equipment becomes a topic of enthusiasm in recent times, and the concept of a development center for continuously innovating and developing direct drinking water purifying equipment by technical personnel in the field is also considered.

At present, with the innovation and the expansion of the field of water purification equipment for many years, direct drinking water purification equipment on the market is diversified, the quality is also varied, products with high selling price and frequently detected problem water, products with multiple functions and complex structure and difficult cleaning, products with simple structure and poor filtering effect and disinfection effect and the like are frequently detected, various direct drinking water purification equipment is basically not provided with cleaning filtering components or disinfection components, even the structure is complex and can not be disassembled for cleaning, after long-time use, water purified by the equipment can not reach the detection standard of direct drinking water, meanwhile, the filtering components are not cleaned for a long time, and the dirt accumulation degree greatly reduces the service life of the equipment.

SUMMERY OF THE UTILITY MODEL

In order to overcome among the prior art direct drinking water purification unit because long-time using in active service and not obtaining the maintenance of wasing, and the direct drinking water that leads to the output can not reach the standard of monitoring and endanger healthily, and can not reach the preliminary treatment effect because the preliminary treatment filter equipment blocks up, and influence the more detailed RO filter equipment of filter fineness and block up easily or impaired, reduce defects such as life, the utility model aims at providing a can realize back flush function's direct drinking water equipment, the usable good water of this equipment is washed scaling back external row to preliminary treatment filter equipment, guarantees better to use up to standard direct drinking water for a long time, and the longer life of RO filter equipment.

In order to solve the above problem, the utility model discloses realize according to following technical scheme:

an increase of service life's straight drinking water equipment, including preprocessing device, RO filter equipment and the retaining container that communicates in proper order, still include:

the pretreatment device is communicated with the water storage container through a backwashing pipeline, and the backwashing pipeline is provided with a water pump;

the waste water pipeline is connected to the pretreatment device and guides the waste water to be discharged;

under a normal state, the backwashing pipeline is closed to block the communication between the pretreatment device and the water storage container, and the waste water pipeline is closed to block the communication between the pretreatment device and the outside;

during back flushing, the pretreatment device is isolated from being communicated with the original water pipeline and isolated from being communicated with the RO filtering device, and the back flushing pipeline and the waste water pipeline are both opened to flush the filter element of the pretreatment device.

As preferred scheme, a increase of service life's straight drinking water equipment still include: the raw water pipeline is communicated with the pretreatment device through a first valve; the waste water pipeline is provided with a second valve; a third valve is arranged between the pretreatment device and the RO filtering device; and a fourth valve is arranged on the back flushing pipeline. The on-off connection relation among all parts in the direct drinking water equipment is controlled through the valve, so that the on-off connection relation among pipelines in a normal state and a backwashing working process is realized.

Preferably, the first valve, the second valve, the third valve and the fourth valve are all solenoid valves. The electromagnetic valve can directly electrically control the action of the valve so as to meet the on-off control requirement of the valve under different conditions, and labor is saved.

As a preferred scheme, the direct drinking water equipment further comprises a control device, wherein the control device adopts a PLC or a singlechip; and the water pump, the first valve, the second valve, the third valve and the fourth valve on the backwashing pipeline are respectively and electrically connected with the control device. According to actual use requirements, a program in a PLC control device or a singlechip control device is programmed, so that multifunctional intelligent control over the direct drinking water equipment for filtering and purifying water sources and cleaning the direct drinking water equipment regularly is realized, for example, a functional program for performing backwashing work at fixed time and fixed points can be edited in the program, and meanwhile, a time recording function is arranged in the equipment or the control device; for example, the functional program of the quality of the stored purified water in the water storage container can be edited in the program and simultaneously the matched detection mechanism is connected with the functional program; in addition, for example, functional programs for further processing of the purified water in the water reservoir and associated corresponding functional components can be edited in the program.

Preferably, the pretreatment device comprises at least one filter element device, and the filter element device can adopt a quartz sand filter element device, a PP cotton filter element device or an activated carbon filter element device; when a plurality of filter element devices are adopted, the filtering precision of the filter element devices is gradually improved along the water inlet direction of raw water and is set. The internal structure of the pretreatment device mainly comprises a plurality of groups of filter core devices which are connected end to end in sequence, and the specific structure and the filtering precision of each filter core device can be designed according to the water quality of raw water required to be purified and the integral structure of the direct drinking water equipment. The filter element device has various types, and a new structure of the filter element device can be selected or created according to the water quality of raw water required to be purified.

As preferred scheme, preprocessing device includes first filter core device and the second filter core device that connects gradually along the raw water direction of intaking, first filter core device adopts cotton filter core device of PP or quartzy sand filter core device, second filter core device adopts active carbon filter core device. The structure is designed to be a preferable embodiment, and can also be set according to the water quality of the required filtering and purifying water and the integral structure of the direct drinking water equipment. And the filter fineness of the active carbon filter element device is higher than that of a PP cotton filter element device and a quartz sand filter element device, so that the filter fineness is higher than that of the PP cotton filter element device and the quartz sand filter element device, and the filter fineness is lower than that of the PP cotton filter element device.

As a preferred scheme, the filter element device is provided with a back washing water inlet and is connected with a back washing pipeline; the filter element devices are provided with wastewater discharge outlets and are connected with wastewater pipelines. According to the direct drinking water equipment each parts between the relation of connection and overall construction and set for whether the filter core device includes back flush water inlet and/or waste water drain to and their concrete position. For example, the back washing water inlet of the filter element device can be designed at the corresponding position on the filter element in the filter element device which is easy to deposit the scale, or the corresponding position which is easy to wash the scale; for example, the waste water discharge outlet of the filter element device can be designed at the position corresponding to the downstream end of the forward backwash water flow or the position corresponding to the position easy to discharge waste water. The filter core devices are provided with backwashing water inlets and wastewater discharge outlets, so that the backwashing pipes can be independently connected with the filter core devices, and the wastewater pipes are also singly spliced to the wastewater pipelines, so that more sufficient backwashing is realized.

As a preferred scheme, the second filter element device is provided with a back washing water inlet and is respectively connected with a back washing pipeline; the first filter element device is provided with a wastewater discharge outlet and is respectively connected with a wastewater pipeline. In the back washing process in the preferred scheme, after water enters the second filter element device from the back washing pipeline from the water storage container to be washed, water flow carries accumulated scale to enter the first filter element device together to wash the first filter element device, and then flows through the waste water pipeline from the waste water drain outlet on the first filter element device to be discharged outside. Because the filter fineness of second filter core device is higher than first filter core device, the waste water that so washed second filter core device can see through first filter core device and arrange outward in the lump along with the scaling of taking on first filter core device.

Preferably, the RO filtration device is provided with a wastewater port and is connected with the wastewater pipeline through a fifth valve, and the fifth valve and the second valve are respectively arranged on the branches of the wastewater pipeline. In order to better realize the on-off relationship between the wastewater pipeline and the corresponding filtering device in the state of box back flushing in the normal state of pure water, the valves on the wastewater pipeline on the pretreatment device and the wastewater pipeline on the RO filtering device need to be arranged on respective branch pipelines.

Preferably, the water storage container is further provided with a UV disinfection lamp, a heating and refrigerating device and a water outlet faucet, the UV disinfection lamp and the heating and refrigerating device are respectively and electrically connected with the control device, and the water outlet faucet is selectively and electrically connected with the control device. The UV disinfection lamp can further disinfect the filtered water in the water storage container so as to sterilize, and the safety index of direct drinking water is improved; the heating and refrigerating device is used for providing direct drinking water with different temperature requirements; the water outlet faucet can be selected and installed according to the integral design structure and the functional requirements of direct drinking equipment, and can be electrically controlled or manually controlled.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a life-prolonging direct drinking water equipment, through adding a back flush pipeline, communicate preprocessing device and retaining container respectively, utilize the water purification that filters disinfection in the retaining container to carry out the back flush to preprocessing filter equipment, in order to wash away the filter core in the preprocessing device and arrange through the waste water pipeline outward, guaranteed the cleanness of filter core in the preprocessing device, long-time use has improved the filtration purification effect of direct drinking water, supplies the people to drink the direct drinking water up to standard for a long time; simultaneously the utility model discloses a structure can be effectual the switching between filtration purification work and the back flush work under the realization straight drinking water equipment normality.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of embodiment 1;

FIG. 3 is a schematic structural view of example 2;

FIG. 4 is a schematic structural view of example 4;

fig. 5 is a diagram illustrating an electrical connection between each electronic control unit and the control device in the embodiment.

In the figure:

a pretreatment device 10; a first filter element arrangement 11; a second filter cartridge arrangement 12;

an RO filter device 20; a waste water port 21;

a water reservoir 30;

a backwash line 40; a water pump 41;

a first valve 51; a second valve 52; a third valve 53; a fourth valve 54; a fifth valve 55;

a control device 60;

a UV disinfection lamp 71; a heating and cooling device 72; a water outlet tap 73;

a waste water line 80;

a raw water line 90.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only for the purpose of illustrating and explaining the present invention, and are not to be considered as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", "third", "fourth", "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those skilled in the art.

Example 1

As shown in fig. 1 and 2, a direct drinking water apparatus for extending a service life according to the present embodiment includes a pretreatment device 10, an RO filter device 20, and a water storage container 30, which are sequentially connected through a water pipe or a connection member;

the pretreatment device 10 is connected with a raw water pipeline 90 through a first valve 51; a third valve 53 is provided between the pretreatment device 10 and the RO filtration device 20; the pretreatment device 10 is provided with a waste water pipeline 80 for guiding waste water to be discharged outside, and the waste water pipeline 80 is provided with a second valve 52;

the RO filter device 20 is provided with a waste water port 21 and is connected with a waste water pipeline 80 through a fifth valve 55, and the fifth valve 55 and the second valve 52 are respectively arranged on the branches of the waste water pipeline 80;

the water storage container 30 is also provided with a UV disinfection lamp 71, a heating and refrigerating device 72 and a water outlet faucet 73, wherein the water outlet faucet 73 adopts an electronic water outlet switch, such as an induction faucet, an electric control faucet and the like, which are electrically controlled;

the direct drinking water device of the embodiment further comprises a back washing pipeline 40 and a control device 60; the pretreatment device 10 is communicated with the water storage container 30 through a back flushing pipeline 40, and a water pump 41 and a fourth valve 54 are arranged on the back flushing pipeline 40;

the first valve 51, the second valve 52, the third valve 53, the fourth valve 54 and the fifth valve 55 are all solenoid valves; the control device 60 may be a PLC or a single chip microcomputer; the water pump 41, the first valve 51, the second valve 52, the third valve 53, the fourth valve 54, the fifth valve 55, the UV disinfection lamp 71, the heating and cooling device 72 and the water outlet faucet 73 on the backwashing pipeline 40 are respectively and electrically connected with the control device 60, as shown in fig. 5.

Wherein, under normal state, the fourth valve 54 on the locking backwashing pipeline 40 is controlled to be closed by the control device 60 so as to disconnect the water storage container 30 from the pretreatment device 10; the water pump 41 on the backwashing pipeline 40 is linked with the fourth valve 54, and the water pump 41 is in a power-off and non-operating state when the fourth valve 54 is closed; controlling the second valve 52 on the locked wastewater line 80 to close by the control device 60 to block the pre-treatment device 10 from communicating with the wastewater line 80; meanwhile, the control device 60 controls the first valve 51 and the third valve 53 to be in an open state, so that raw water enters from the raw water inlet end of the pretreatment device 10, is filtered by the pretreatment device 10, flows through the RO filter device 20 for further reverse osmosis filtration, and is accumulated in the water storage container 30; after being sterilized by the UV light, the water passes through the heating and cooling device 72 and is further processed before flowing out of the water outlet faucet 73 or being stored for human use.

During backwashing, the control device 60 controls the fourth valve 54 on the backwashing pipeline 40 to be opened, so that the water storage container 30 is communicated with the pretreatment device 10; when the fourth valve 54 is opened, the water pump 41 is in an electrified operation state, pumps water in the water storage container 30, pressurizes the water, and supplies the water to the filter element of the pretreatment device 10; the control device 60 controls the second valve 52 on the wastewater pipeline 80 to open, so that the wastewater sewage discharge port of the pretreatment device 10 is communicated with the wastewater pipeline 80, in this embodiment, the wastewater sewage discharge port during backwashing can be arranged between the first valve 51 and the raw water inlet port of the pretreatment device 10 or the pretreatment device 10 is additionally provided with a wastewater sewage discharge port; meanwhile, the control device 60 controls and locks the first valve 51 and the third valve 53 in a closed state, so that the pretreatment device 10 is isolated from the raw water and from the communication with the RO filter device 20, the backwashing pipeline 40 and the wastewater pipeline 80 are both opened, so that the good water in the water storage container 30 is pressurized by the water pump 41 on the backwashing pipeline 40 and then flows backwards into the pretreatment device 10, and the good water is discharged along the wastewater pipeline 80 after washing the filter element with water.

The pretreatment device 10 comprises at least one filter element device, and the filter element device can adopt a quartz sand filter element device, a PP cotton filter element device or an active carbon filter element device; when a plurality of filter element devices are adopted, the filtering precision of the filter element devices is gradually improved along the raw water inlet direction; in the embodiment, the pretreatment device 10 has a filter element device structure, and an activated carbon filter element device is adopted as the pretreatment device 10. Namely, the raw water inlet end of the active carbon filter element device is connected with a raw water pipeline 90 through a first valve 51; the good water outlet end of the activated carbon filter element device is connected with the raw water inlet end of the RO filter device 20 through a third valve 53, and the activated carbon filter element device is provided with a waste water pipe extending out and spliced on a waste water pipeline 80 through a second valve 52; the active carbon filter element device is communicated with the water storage container 30 through a back flushing pipeline 40, and the fourth valve 54 controls the connection and disconnection between the active carbon filter element device and the water storage container 30.

Example 2

As shown in fig. 3, the instant drinking water apparatus with extended service life in this embodiment 2 is similar to the structure in embodiment 1, except that: the pretreatment device 10 comprises a first filter element device 11 and a second filter element device 12 which are sequentially connected along the water inlet direction of raw water; the first filter element device 11 adopts a PP cotton filter element device, and the second filter element device 12 adopts an active carbon filter element device;

the raw water inlet end of the PP cotton filter element device is connected with the raw water pipeline 90 through a first valve 51, the water filtering outlet end on the PP cotton filter element device is connected with the raw water inlet end of the activated carbon filter element device, and the water filtering outlet end of the activated carbon filter element device is connected with the RO filtering device 20 through a third valve 53;

the PP cotton filter element device and the active carbon filter element device are both provided with back washing water inlets and are respectively connected with a back washing pipeline 40; in this embodiment 2, the filter element devices (the PP cotton filter element device and the activated carbon filter element device) are provided with a wastewater discharge outlet and are respectively connected with the wastewater pipeline 80, the wastewater discharge outlet of the PP cotton filter element device and the wastewater pipeline 80 are controlled to be on-off by a second valve 52, the wastewater discharge outlet of the activated carbon filter element device and the wastewater pipeline 80 are controlled to be on-off by another second valve 52, and the two second valves 52 respectively control the wastewater discharge outlet of the two filter element devices and the wastewater pipeline 80 to be on-off.

In a normal state, the control device 60 controls the fourth valve 54 on the locking backwashing pipeline 40 to be closed so as to disconnect the water storage container 30 from the PP cotton filter element device and the activated carbon filter element device; the water pump 41 on the backwashing pipeline 40 is linked with the fourth valve 54, and the water pump 41 is in a power-off and non-operating state when the fourth valve 54 is closed; the control device 60 controls the two second valves 52 on the locking wastewater pipeline 80 to be closed so as to block the communication between the wastewater discharge outlet of the PP cotton filter element device and the wastewater pipeline 80 and also block the communication between the wastewater discharge outlet of the activated carbon filter element device and the wastewater pipeline 80; meanwhile, the control device 60 controls the first valve 51 and the third valve 53 to be in an open state, so that the raw water is filtered by the PP cotton filter element device and then flows through the activated carbon filter element device for filtering, and then enters the RO filter device 20 for further reverse osmosis filtration, and is accumulated in the water storage container 30; and after being sterilized by the UV lamp, the water is passed through the heating and cooling device 72 to be further processed before flowing out of the water outlet faucet 73 or being stored for use.

During backwashing, the control device 60 controls the fourth valve 54 on the backwashing pipeline 40 to be opened, so that the PP cotton filter element device and the activated carbon filter element device are respectively communicated with the water storage container 30; when the fourth valve 54 is opened, the water pump 41 is in an electrified operation state, and water in the water storage container 30 is pumped and pressurized to enter the PP cotton filter element device and the activated carbon filter element device respectively so as to flush the accumulated scale of the filter elements; the control device 60 controls the two second valves 52 on the waste water pipeline 80 to be opened, so that the waste water drain outlet of the PP cotton filter element device and the waste water drain outlet of the active carbon filter element device are respectively communicated with the waste water pipeline 80; meanwhile, the control device 60 controls and locks the first valve 51 to be in a closed state, so that the PP cotton filter element device is isolated from the raw water pipeline 90, and secondary pollution caused by flushing waste water with accumulated scale entering a raw water source in a mixed mode is avoided; and the control device 60 controls and locks the third valve 53 in a closed state, thereby disconnecting the communication between the activated carbon filter element device and the RO filtering device 20; the backwashing pipeline 40 and the waste water pipeline 80 are both opened, so that the good water in the water storage container 30 flows backwards from the backwashing pipeline 40 after being pressurized by the water pump 41 on the backwashing pipeline 40 and respectively enters the filter elements of the PP cotton filter element device and the active carbon filter element device, and is discharged along the waste water pipeline 80 after being washed by the water.

The remaining structures or functions are as described in the above embodiments.

Example 3

As shown in fig. 4, the instant drinking water apparatus with extended service life in this embodiment 3 is similar to the structure in embodiment 1, except that: the pretreatment device 10 comprises a first filter element device 11 and a second filter element device 12 which are sequentially connected along the raw water inlet direction, wherein the first filter element device 11 adopts a quartz sand filter element device, and the second filter element device 12 adopts an active carbon filter element device. The second filter element device 12 is provided with a back washing water inlet and is connected with a back washing pipeline 40; the first filter element means 11 is provided with a waste water drain and is connected to a waste water line 80.

Specifically, a raw water inlet end of the quartz sand filter element device is connected with a raw water pipeline 90 through a first valve 51, a filtered water outlet end of the quartz sand filter element device is connected with a raw water inlet end of the activated carbon filter element device, and a filtered water outlet end of the activated carbon filter element device is connected with the RO filter device 20 through a third valve 53;

the activated carbon filter element device is provided with a back flush water inlet and is connected with a back flush pipeline 40; the quartz sand filter element device is provided with a wastewater discharge port and is respectively connected with the wastewater pipeline 80, the wastewater discharge port of the quartz sand filter element device is controlled to be connected with the wastewater pipeline 80 through a second valve 52, and the second valve 52 controls the connection and disconnection between the wastewater discharge port of the quartz sand filter element device and the wastewater pipeline 80.

In a normal state, the control device 60 controls the fourth valve 54 on the locking backwashing pipeline 40 to be closed so as to disconnect the water storage container 30 from the activated carbon filter element device; the water pump 41 on the backwashing pipeline 40 is linked with the fourth valve 54, and the water pump 41 is in a power-off and outage state when the fourth valve 54 is closed; the second valve 52 on the waste water pipeline 80 is controlled to be locked to be closed through the control device 60 so as to block the communication between the waste water drain outlet of the quartz sand filter element device and the waste water pipeline 80; meanwhile, the control device 60 controls the first valve 51 and the third valve 53 to be in an open state, so that the raw water is filtered by the quartz sand filter element device and then flows through the activated carbon filter element device for filtering, and then enters the RO filter device 20 for further reverse osmosis filtration, and is accumulated in the water storage container 30; after being sterilized by the UV lamp, the water passes through the heating and cooling device 72 and is further processed before flowing out of the water outlet faucet 73 or being stored for later use.

During backwashing, the control device 60 controls the fourth valve 54 on the backwashing pipeline 40 to be opened, so that the activated carbon filter element device is communicated with the water storage container 30; when the fourth valve 54 is opened, the water pump 41 is in an electrified operation state, pumps water in the water storage container 30, pressurizes the water, flows backwards into the activated carbon filter element device, washes scales on the filter element, and enters the quartz sand filter element device from the activated carbon filter element device along with water flow along with the water flow against the raw water inlet direction; the control device 60 controls the second valve 52 on the waste water pipeline 80 to be opened, so that the waste water drain outlet of the quartz sand filter element device is communicated with the waste water pipeline 80, and all accumulated scale flows into the waste water pipeline 80 along with water flow from the waste water drain outlet on the quartz sand filter element device to be discharged; meanwhile, the control device 60 controls and locks the first valve 51 to be in a closed state, so that the quartz sand filter element device is isolated from the raw water pipeline 90, and secondary pollution caused by flushing waste water with scale deposits entering a raw water source in a mixed manner is avoided; and the control device 60 controls and locks the third valve 53 in a closed state, thereby disconnecting the communication between the activated carbon filter element device and the RO filtering device 20; the backwashing pipeline 40 and the waste water pipeline 80 are both opened, so that the good water in the water storage container 30 flows backwards from the backwashing pipeline 40 into a filter element of the activated carbon filter element device after being pressurized by the water pump 41 on the backwashing pipeline 40, the scale deposits enter the quartz sand filter element device along with water flow through scouring the filter element of the activated carbon filter element device, the filter element of the quartz sand filter element device is scoured, and all the scale deposits after the filter element is flushed by water enter from a waste water discharge outlet of the quartz sand filter element device and are discharged along the waste water pipeline 80.

The solenoid valve, the PLC control device 60 or the single chip microcomputer control device 60, the water outlet faucet 73, the UV disinfection lamp 71, the heating and refrigerating device 72 and other structures in the embodiment are shown in the prior art.

The above-mentioned raw water pipeline 90 can adopt external raw water supply pipe, or install a raw water container and be connected with it, or the raw water container of installation still communicates raw water supply schemes such as outside raw water supply pipe, all only belong to do not break away from right the utility model discloses a change, modification or replacement that the purpose made all belong to the utility model discloses the protection within range who limits.

The water outlet faucet 73 is not limited to the electronic water outlet switch in the embodiment, and a manual faucet can be used to manually implement a water parking function.

In the embodiment, "controlled by the control device 60" can be electrically connected with the electrical appliances through the control device 60 by a programming program so as to realize full-automatic control operation; and can be programmed to be semi-automatic, and the corresponding functional structure and the manual operation area are designed according to actual use.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an increase of service life's straight drinking water equipment which characterized in that, includes preprocessing device, RO filter equipment and the retaining container that communicates in proper order, still includes:

2. A life-extending potable water apparatus according to claim 1, further comprising:

the raw water pipeline is communicated with the pretreatment device through a first valve;

the waste water pipeline is provided with a second valve;

a third valve is arranged between the pretreatment device and the RO filtering device;

and a fourth valve is arranged on the back flushing pipeline.

3. A life-extending drinking water apparatus as claimed in claim 2, wherein: the first valve, the second valve, the third valve and the fourth valve are all electromagnetic valves.

4. A life-extending drinking water apparatus as claimed in claim 3, wherein: the direct drinking water equipment also comprises a control device, and the control device adopts a PLC or a singlechip; and the water pump, the first valve, the second valve, the third valve and the fourth valve on the backwashing pipeline are respectively and electrically connected with the control device.

5. A life-extending drinking water apparatus as claimed in claim 1, wherein: the pretreatment device comprises at least one filter element device, and the filter element device can adopt a quartz sand filter element device, a PP cotton filter element device or an activated carbon filter element device; when a plurality of filter element devices are adopted, the filtering precision of the filter element devices is gradually improved along the water inlet direction of raw water and is set.

6. A direct drinking water apparatus for prolonging service life as claimed in claim 5, wherein: the pretreatment device comprises a first filter element device and a second filter element device which are sequentially connected along the water inlet direction of raw water, wherein the first filter element device adopts a PP cotton filter element device or a quartz sand filter element device or an active carbon filter element device, and the second filter element device adopts an active carbon filter element device.

7. A direct drinking water apparatus with an extended service life as claimed in claim 6, wherein: the filter element devices are provided with backwashing water inlets and are connected with backwashing pipelines; the filter element devices are provided with wastewater discharge outlets and are connected with wastewater pipelines.

8. A direct drinking water apparatus with an extended service life as claimed in claim 6, wherein: the second filter element device is provided with a back washing water inlet and is connected with a back washing pipeline; the first filter element device is provided with a wastewater discharge outlet and is connected with a wastewater pipeline.

9. A direct drinking water apparatus with an extended service life as claimed in any one of claims 2 to 4, wherein: the RO filtering device is provided with a waste water port and is connected with the waste water pipeline through a fifth valve, and the fifth valve and the second valve are respectively arranged on branches of the waste water pipeline.

10. A direct drinking water apparatus with an extended service life as claimed in claim 4, wherein: the water storage container is also provided with a UV disinfection lamp, a heating and refrigerating device and a water outlet faucet, wherein the UV disinfection lamp and the heating and refrigerating device are respectively electrically connected with the control device, and the water outlet faucet is selectively electrically connected with the control device.