CN215559602U - Household dual water supply system - Google Patents

Abstract

The utility model relates to a household dual water supply system, which comprises a main water inlet pipe and an ultrafiltration pipe, wherein unfiltered water subjected to ultrafiltration enters a primary filtering pipeline, and water subjected to ultrafiltration is divided into a secondary filtering pipeline and a tertiary filtering pipeline after passing through a UV (ultraviolet) sterilization device; according to the utility model, three paths of water supply are formed by filtering the water sent by the main water inlet pipe to different degrees so as to meet different water requirements, so that not only can the water safety be ensured, but also the reasonable utilization of water resources is facilitated. The water that comes from the total inlet tube divides into three routes after leading filter and ultrafiltration, connects the unfiltered water of ultrafiltration all the way to supply the laundry, dash the side, bathroom or other non-drinking water to use, supplies to wash the dish, cook or other clean water use after the UV sterilizing equipment lamp is disinfected all the way, supplies directly to drink the water use after passing through UV sterilizing equipment after filtering through active carbon, NF membrane module etc. all the way, has realized supplying water according to the different qualities of water demand.

Description

Household dual water supply system

Technical Field

The utility model relates to a household dual water supply system.

Background

According to the classification of domestic water and the data display of water consumption: the direct drinking water amount of people accounts for 1.8% -2.2% of the domestic water consumption, namely 50 liters of water is used every time, only about 1 liter of water is used as direct drinking water, and the situation of tracking and surveying of domestic water of residents shows that the water consumption difference of different water facilities and different living conditions of residents is large, the water consumption of high-grade residential users with indoor water bath facilities is higher, the domestic quality of life of China is continuously improved, the introduction of intelligent equipment is more important on how to scientifically and effectively utilize water resources, and the water is reasonably saved.

However, the current household water can be roughly divided into three types: the water quality requirements for the water quality are not high, and only large particles such as silt, rust and the like in the water are removed through rough filtration; one type is water for washing vegetables, cooking rice and cleaning, most of the water can be boiled and the like although the water can be partially eaten, and the water has higher requirements on water quality but does not need to reach the water purification degree of direct drinking water; the last type is direct drinking water, which has high requirements on water quality and needs to be filtered by a plurality of filtering procedures.

Therefore, water is filtered in different degrees according to the application, the water safety can be reasonably guaranteed, and unnecessary waste can be avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a household quality-based water supply system which can filter tap water to different degrees so as to meet different water requirements.

The technical scheme adopted by the utility model is as follows: the utility model provides a domestic dual water supply system, its includes total inlet tube and sets up the ultrafiltration on total inlet tube, and the unfiltered water through the ultrafiltration gets into primary filter pipeline, and the water after the ultrafiltration is filtered divides into second grade filter pipeline and tertiary filter pipeline behind the UV sterilizing equipment.

Furthermore, a high-pressure pump and an NF membrane component are sequentially arranged on the three-stage filtering pipeline along the water flow direction.

Furthermore, compressed activated carbon is arranged in front of the high-pressure pump and/or post-positioned activated carbon is arranged behind the NF membrane component.

Further, a concentrated water port of the NF membrane component is communicated with a primary filtering pipeline through a return pipeline, one end of the return pipeline is communicated with the primary filtering pipeline, and the other end of the return pipeline is a water outlet;

the pressure tank is connected to a return pipeline between the NF membrane module and the primary filtering pipeline, a regulating constant pressure valve is arranged on the primary filtering pipeline and in front of a connecting point of the return pipeline and the primary filtering pipeline, and a second electromagnetic valve is arranged on the return pipeline and behind the NF membrane module.

Furthermore, a softening device is arranged in front of the tail end of the primary filtering pipeline.

Furthermore, a water quality detection device is arranged on the tertiary filtering pipeline and behind the NF membrane module.

Furthermore, a bypass pipeline is arranged between the main water inlet pipe and the primary filtering pipeline and between the main water inlet pipe and the secondary filtering pipeline, and an electric ball valve is arranged on the main water inlet pipe and behind the bypass pipeline.

Further, a pre-filter is arranged on the main water inlet pipe and before the ultrafiltration.

Further, a discharge valve is arranged on the pressure tank.

The utility model has the positive effects that: according to the utility model, three paths of water supply are formed by filtering the water sent by the main water inlet pipe to different degrees so as to meet different water requirements, so that not only can the water safety be ensured, but also the reasonable utilization of water resources is facilitated. The water that comes from the total inlet tube divides into three routes after leading filter and ultrafiltration, connects the unfiltered water of ultrafiltration all the way to supply the laundry, dash the side, bathroom or other non-drinking water to use, supplies to wash the dish, cook or other clean water use after the UV sterilizing equipment lamp is disinfected all the way, supplies directly to drink the water use after passing through UV sterilizing equipment after filtering through active carbon, NF membrane module etc. all the way, has realized supplying water according to the different qualities of water demand.

In the thick water of following NF membrane module exhaust can save the overhead tank through return line, the bucket internal pressure can rise, through the adjustment constant pressure valve, in the water inflow primary filter pipeline in the overhead tank when supplying domestic water such as laundry, washing the lavatory, realize waste water cyclic utilization, improve water resource utilization rate.

Drawings

Fig. 1 is a schematic block diagram of the present invention.

Detailed Description

It should be noted that, in the present invention, the terms of orientation such as front and back are used, and the direction of water flow is taken as the front, and the direction of water flow is taken as the back.

As shown in the attached figure 1, the water purifier comprises a main water inlet pipe 1, and an embedded filter 2 and an ultrafiltration 3 which are sequentially arranged on the main water inlet pipe 1, unfiltered water subjected to ultrafiltration 3 enters a primary filtering pipeline 4, and water subjected to ultrafiltration 3 enters a secondary filtering pipeline 7 and a tertiary filtering pipeline 8 respectively after passing through a UV sterilizing device. The primary filter pipeline 4 is mainly used for washing clothes, flushing toilets, bathrooms or other non-drinking water, and a softening device 14 is arranged on the primary filter pipeline 4.

One path of the filtered water passing through the UV sterilizing device is a secondary filtering pipeline 7 which is mainly used for washing vegetables, cooking rice or other clean water, and the water has certain requirements on water quality but can not be directly fed, so that the water quality requirement can be met through the UV sterilizing device.

The other path is a three-stage filtering pipeline 8, and the water path is used for directly drinking water for people to directly drink, and has higher requirement on water quality. The water path is sequentially provided with compressed activated carbon 9, a high-pressure pump 10, an NF membrane component 11 and post-positioned activated carbon 12 along the water flow direction, the tail end of the pipeline is connected with a drinking water faucet, and a pipeline machine interface is reserved. The NF membrane module 11 generates concentrated water when working, the concentrated water flows out from a concentrated water port, the concentrated water port is communicated with the primary filtering pipeline 4 by a return pipeline 16, and meanwhile, one end of the return pipeline 16 is a water outlet. A pressure tank 13 is connected to the return line 16 and between the NF membrane module 11 and the primary filter line 4, a constant pressure regulating valve and a one-way valve for preventing the backflow of the concentrated water are arranged on the primary filter line 4 and in front of the connection point of the return line 16 and the primary filter line 4, and a second electromagnetic valve is arranged on the return line 16 and behind the NF membrane module 11. And a valve is arranged on the loop pipe and between the pressure tank 13 and the NF membrane module 11, and the valve adopts a manually adjustable discharge ball valve, so that the recovery rate is conveniently adjusted, and better water quality is obtained. The connection point of the return line 16 to the primary filter line 4 is located before the softening device 14.

The second solenoid valve is closed, the concentrated water discharged from the NF membrane module can preferentially enter the pressure tank 13, the discharge valve is installed on the pressure tank 13, when the concentrated water in the pressure tank 13 is gradually increased and reaches a certain pressure, the discharge valve is opened, so that the concentrated water in the pressure tank 13 enters the primary filtering pipeline 4, and under the cooperation of the pressure regulating constant pressure valve, the primary filtering pipeline 4 can ensure that the water in the pressure tank 13 is preferentially used, and the secondary use of the concentrated water discharged from the NF membrane module 11 is realized. The primary filtering pipeline 4 is used for non-drinking water such as washing clothes, flushing toilets, bathrooms and the like, has low requirements on water quality, and completely meets the use requirements of the primary filtering pipeline.

And a flow induction switch FS1 is arranged at the outlet of the UV sterilization device 6, the ultraviolet lamp is turned on when the flow exists, and is turned off when the flow does not exist, and the flow induction switch is turned off in a delayed mode. And meanwhile, the device is used for accumulating the flow of ultrafiltration produced water and prompting replacement when the flow reaches a limit value. And a flow induction switch FS2 is arranged on the third-stage filtering pipeline 8 and before the compressed activated carbon 9 and used for accumulating the filter element flow of the NF membrane module, the replaced activated carbon, the NF membrane module and the post-positioned activated carbon filter element are monitored on line through the quality of direct drinking water, and the replacement time is comprehensively determined by combining the flow accumulation of FS 2. And a low-pressure switch PS1 and a first electromagnetic valve are sequentially arranged behind the compressed activated carbon 9, and when the pressure in the pipeline is lower than 0.08MPa, the first electromagnetic valve is closed. A TDS detection module, a purified water quality detection module and a pressure switch PS2 are arranged on a pipeline between the rear-mounted activated carbon 12 and the application faucet.

A bypass pipeline 15 is arranged between the main water inlet pipe 1 and the primary filtering pipeline 4 and between the main water inlet pipe 1 and the secondary filtering pipeline 7, and an electric ball valve is arranged on the main water inlet pipe 1 and behind the bypass pipeline 15. The connecting points between the through pipeline 15 and the primary filtering pipeline 4 and the secondary filtering pipeline 7 are all located at the tail end of the connecting pipelines, when parts or pipelines such as the ultrafiltration 3, the UV sterilization device 6, the NF membrane component 11, the pressure tank 13 and the like need to be maintained, the electric ball valve is closed, and the bypass pipeline 15 directly supplies water for washing clothes, flushing toilets, bathrooms, washing vegetables, cooking and the like, so that daily water is guaranteed.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (7)

1. A household dual water supply system is characterized by comprising a main water inlet pipe (1) and an ultrafiltration pipe (3) arranged on the main water inlet pipe (1), wherein unfiltered water passing through the ultrafiltration pipe (3) enters a primary filtering pipeline (4), and water filtered by the ultrafiltration pipe (3) is divided into a secondary filtering pipeline (7) and a tertiary filtering pipeline (8) after passing through a UV sterilization device; a softening device (14) is arranged in front of the tail end of the primary filtering pipeline (4);

a high-pressure pump (10) and an NF membrane module (11) are sequentially arranged on the three-stage filtering pipeline (8) along the water flow direction, and a pressure tank (13) is connected on a return pipeline (16) between the NF membrane module (11) and the primary filtering pipeline (4).

2. A domestic divided water supply according to claim 1, wherein there is provided compressed activated carbon (9) in front of the high pressure pump (10) and/or post activated carbon (12) behind the NF membrane module (11).

3. A domestic dual water supply system according to claim 1 or 2, wherein the concentrate port of the NF membrane module (11) communicates with the primary filtration line (4) via a return line (16), one end of the return line (16) communicates with the primary filtration line (4), and the other end is a drain port;

a regulating constant pressure valve is arranged on the primary filtering pipeline (4) and in front of a connecting point of the return pipeline (16) and the primary filtering pipeline (4), and a second electromagnetic valve is arranged on the return pipeline (16) and behind the NF membrane module (11).

4. A domestic divided water supply system according to claim 1, wherein a water quality detection means is provided on the tertiary filtration line (8) and behind the NF membrane module (11).

5. A domestic water supply system according to claim 1, wherein a bypass line (15) is provided between the main water inlet pipe (1) and the primary (4) and secondary (7) filter lines, and a motorized ball valve is provided on the main water inlet pipe (1) and behind the bypass line (15).

6. A domestic dual water supply system according to claim 1, wherein a pre-filter (2) is provided on the mains water inlet pipe (1) and before the ultra-filtration (3).

7. A domestic water supply system according to claim 1, wherein a drain valve is provided on the pressure tank (13).

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