CN107165221B - Quality-divided water supply equipment and water supply method thereof - Google Patents

Quality-divided water supply equipment and water supply method thereof Download PDF

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CN107165221B
CN107165221B CN201710486376.1A CN201710486376A CN107165221B CN 107165221 B CN107165221 B CN 107165221B CN 201710486376 A CN201710486376 A CN 201710486376A CN 107165221 B CN107165221 B CN 107165221B
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water
quality
water supply
main
filter
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CN107165221A (en
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张明亮
王学成
王英杰
谢雄
张占丰
崔新光
秦汉东
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Qingdao Sanli Zhongdemei Water Equipment Co Ltd
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Qingdao Sanli Zhongdemei Water Equipment Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00Methods or layout of installations for water supply
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/07Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/07Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
    • E03B7/074Arrangement of water treatment devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/152Water filtration

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses a quality-divided water supply device and a water supply method thereof. The quality-divided water supply equipment comprises a direct drinking water treatment module and a water quality monitoring module; the direct drinking water treatment module comprises a pre-filtering component, a first water pump, a filter membrane component and a purified water tank which are sequentially connected to form a filtering waterway, wherein the pre-filtering component comprises a multi-media filter and an activated carbon filter which are connected to the filtering waterway; the water quality monitoring module comprises a monitor, a closed water tank and a first water quality sensor, the closed water tank is connected between the filter membrane component and the purified water tank, the first water quality sensor is arranged in the closed water tank, and the first water quality sensor is connected with the monitor; wherein the filter membrane component is a nanofiltration membrane component or an ultrafiltration membrane component. The detection precision and the detection range of the water quality parameters of the quality-divided water supply equipment are improved, so that the user experience is improved.

Description

Quality-divided water supply equipment and water supply method thereof
Technical Field
The invention relates to the technical field of water supply equipment, in particular to quality-divided water supply equipment and a water supply method thereof.
Background
At present, with the improvement of the living standard of people, the demand of direct drinking water is greatly increased, and the direct drinking water supply technology is continuously developed. The direct drinking water supply equipment generally comprises a water supply module, a filter assembly, a filter membrane assembly and other devices, and after raw water conveyed by an external water source enters the water supply module, the raw water is conveyed by the water supply module into the filter assembly and the filter membrane assembly for treatment so as to obtain direct drinking water. Chinese patent No. CN2012201564775 discloses a non-negative pressure direct drinking water preparing and supplying device, wherein the water outlet of the water purifying tank and the output pipeline connected to the user end are connected with a water quality comprehensive online measuring and controlling device, however, in the actual use process, the number of the water quality sensors arranged on the pipeline is limited, which results in limited detection parameters, and the water output from the water purifying tank is also easily influenced by external factors, which results in the change of water quality and affects the detection accuracy. The invention aims to solve the technical problem of how to design direct drinking water supply equipment which has high detection precision and wide detection range and improves the user experience.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the quality-divided water supply equipment and the water supply method thereof are provided, so that the detection precision and the detection range of the water quality parameters of the quality-divided water supply equipment are improved, and the user experience is improved.
The invention provides a quality-divided water supply device, which comprises a direct drinking water treatment module and a water quality monitoring module; the direct drinking water treatment module comprises a pre-filtering component, a first water pump, a filter membrane component and a purified water tank which are sequentially connected to form a filtering waterway, wherein the pre-filtering component comprises a multi-media filter and an activated carbon filter which are connected to the filtering waterway; the water quality monitoring module comprises a monitor, a closed water tank and a first water quality sensor, the closed water tank is connected between the filter membrane component and the purified water tank, the first water quality sensor is arranged in the closed water tank, and the first water quality sensor is connected with the monitor; wherein the filter membrane component is a nanofiltration membrane component or an ultrafiltration membrane component.
Furthermore, the multi-media filter and the activated carbon filter are respectively connected to the filtering water path through corresponding valve assemblies, each valve assembly comprises a first valve and two second valves, the first valves are connected in series to the filtering water path, two ports of each first valve are respectively connected to the corresponding second valves, and the multi-media filter and the activated carbon filter are respectively connected between the two corresponding second valves of the corresponding valve assemblies.
Furthermore, the quality-divided water supply equipment further comprises a raw water tank and a pressure pump which are connected together, and the pressure pump is connected with the pre-filtering component.
Further, divide matter water supply installation still includes no negative pressure water supply module, no negative pressure water supply module is including connecting gradually main inlet tube, stationary flow compensator, main feed pump and the main outlet pipe that constitutes the main water route, main outlet pipe be used for to prefiltration subassembly and user water end supply water.
Furthermore, the water quality monitoring module is including connecting second water quality sensor in the main water route, the water inlet of main outlet pipe with still be connected with first bypass pipe between the delivery port of first water pump, be provided with first automatically controlled valve on the first bypass pipe.
Furthermore, a second bypass pipe is connected between the water outlet of the steady flow compensator and the water inlet of the first water pump, and a second electric control valve is arranged on the second bypass pipe.
Furthermore, the water quality monitoring module also comprises a third water quality sensor connected to the water outlet of the multi-media filter and/or the water outlet of the activated carbon filter.
The invention also provides a water supply method of the quality-divided water supply equipment, which comprises a water quality adjusting water supply mode;
the water quality adjusting and supplying mode comprises: when the water quality detected by the second water quality sensor does not reach the standard, water output by the main water outlet pipe in the non-negative-pressure water supply module is filtered by the pre-filtering assembly, pressurized by the first water pump and then conveyed to the main water outlet pipe through the first bypass pipe.
Further, the water quality adjusting water supply mode specifically comprises:
when the water impurities detected by the second water quality sensor exceed the standard, the water output by the main water outlet pipe is filtered by the multi-medium filter;
and/or when the water detected by the second water quality sensor has peculiar smell and different colors, the water output by the main water outlet pipe is filtered by the activated carbon filter.
Further, the water supply method further comprises an energy-saving water supply mode, in the energy-saving water supply mode, when the total water consumption of the user side is lower than a set value, the main water supply pump stops running, water introduced by the main water inlet pipe is conveyed to the first water pump through the second bypass pipe, and is pressurized by the first water pump and then conveyed to the main water outlet pipe through the first bypass pipe.
Compared with the prior art, the invention has the advantages and positive effects that: the invention provides quality-divided water supply equipment and a water supply method thereof.A closed water tank is arranged between a filter membrane component and a water purification tank, and a first water quality sensor in a water quality monitoring module is placed in the closed water tank to detect the water quality parameter of direct drinking water; and the first quality of water sensor is installed to the closed water pitcher that sets up independently, can install different kinds of sensors at closed water pitcher as required to can detect the parameter of more kinds of quality of water, widen detection range, realize having improved quality of water supply equipment's quality of water parameter detection precision and detection range, in order to improve user experience nature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a first schematic diagram of a pipeline arrangement of an embodiment of the quality-based water supply equipment of the invention.
FIG. 2 is a second schematic diagram of the piping arrangement of the dual water supply apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the quality-divided water supply apparatus of the present embodiment includes a direct drinking water treatment module 200 and a water quality monitoring module; the direct drinking water treatment module 200 comprises a pre-filtering component 21, a first water pump 22, a filter membrane component 23 and a purified water tank 25 which are sequentially connected to form a filtering waterway, wherein the pre-filtering component 21 comprises a multi-media filter 211 and an activated carbon filter 212 which are selectively connected to the filtering waterway; the water quality monitoring module comprises a monitor (not shown), a closed water tank 501 and a first water quality sensor 502, the closed water tank 501 is connected between the filter membrane component 23 and the purified water tank 25, the first water quality sensor 502 is arranged in the closed water tank 501, and the first water quality sensor 502 is connected with the monitor.
Specifically, in the quality-divided water supply equipment of the embodiment, the independent closed water tank 501 is connected between the filter membrane module 23 and the purified water tank 25, the direct drinking water output by the filter membrane module 23 flows through the closed water tank 501 and then enters the purified water tank 25, the direct drinking water flowing in the closed water tank 501 is not interfered by external factors, and the first water quality sensor 502 is arranged in the closed water tank 501 and can accurately detect relevant parameter indexes of the direct drinking water, so that the detection accuracy is improved; compare in prior art at water purification case 25 or set up the sensor in the outlet conduit of water purification case 25, water in water purification case 25 and the outlet conduit water very easily are influenced by external factors and lead to the quality of water to change, and the water in the closed water pitcher 501 directly comes from the delivery port of filter membrane module 23, and, in direct drinking water supplies the in-process, the water flow in closed water pitcher 501 can be guaranteed to the straight drinking water of filter membrane module 23 output, make the real-time dynamic quality of water parameter of the straight drinking water of detection of first water quality sensor 502, and, utilize the watch-dog can show the relevant quality of water parameter that detects for the user, thereby make the user can audio-visually see relevant information, realize effectively monitoring water quality online in the true sense.
Wherein, the first water quality sensor 502 can be a PH/ORP sensor, a conductivity sensor, a turbidity sensor, a dissolved oxygen sensor, a residual chlorine sensor, a COD sensor, a salinity sensor, an ammonia nitrogen sensor, etc., and the embodiment does not limit the concrete representation entity of the first water quality sensor 502.
In practical use of the dual water supply apparatus of this embodiment, a corresponding water supply source is required to provide raw water, and as shown in fig. 1, the water supply source 100 includes a raw water tank 11 and a pressure pump 12 connected together, and the pressure pump 12 is connected to the pre-filtering assembly 21. Specifically, the raw water tank 11 contains water to be treated, the water in the raw water tank 11 is conveyed to the pre-filtering component 21 through the pressure pump 12, and the water is treated by the pressure maintaining filter 24 and the reverse osmosis component 23 to obtain direct drinking water.
Similarly, as shown in fig. 2, the water supply source may adopt a non-negative pressure water supply module 100, wherein the non-negative pressure water supply module 100 includes a main water inlet pipe 11, a main water supply pump 12 and a main water outlet pipe 13 which are connected in sequence to form a main water path, and the main water outlet pipe 13 is used for supplying water to the pre-filtering assembly 21 and a user water supply pipe 1000 (i.e. a user water end). Specifically, the conventional residential area needs to be equipped with the non-negative pressure water supply module 100 to supply domestic water, and the non-negative pressure water supply module 100 in the dual water supply device of the present embodiment is also used for sharing a water source with the direct drinking water treatment module 200, besides meeting the domestic water supply requirement of the user. Preferably, the water quality monitoring module comprises a second water quality sensor 101 connected to the main water channel, a first bypass pipe 301 is further connected between the water inlet of the main water outlet pipe 13 and the water outlet of the first water pump 22, and a first electric control valve (not marked) is arranged on the first bypass pipe 301. Specifically, this embodiment divides matter water supply equipment to be connected with municipal pipe network through no negative pressure water supply module 100, realizes supplying water to the resident family in the district, wherein, the water of main outlet pipe 13 output can be connected with user's end delivery pipe 1000 in the resident district, realize supplying resident domestic water, utilize the no negative pressure water supply module 100 of district to carry out straight drinking water supply simultaneously and supply, the water of main outlet pipe 13 output still carries and supplies straight drinking water processing module 200, the water of main outlet pipe 13 output enters into in the prefiltering subassembly 21 and handles the back, rethread first water pump 22 pressurizes the back and obtains straight drinking water through the reverse osmosis treatment of filter membrane subassembly 23, straight drinking water of user's end in the district can be connected to the straight drinking water pipe 2000 of direct drinking water processing module 200 output to the realization is supplied with straight drinking water to the user. The quality-divided water supply equipment of the embodiment shares the set of non-negative-pressure water supply module 100, so that the supply of the conventional domestic water and the direct drinking water in the residential area can be met, and the installation and use cost is effectively reduced. More importantly, by arranging the first bypass pipe 301 between the water inlet of the main water outlet pipe 13 and the water outlet of the first water pump 22, when the water quality conveyed by the municipal pipe network is reduced, the water quality of domestic water of a user is also reduced, at the moment, the water quality in the main water path is monitored by the second water quality sensor 101 to be reduced, the first electric control valve is opened, part of water output by the main water outlet pipe 13 is treated by the pre-filtering assembly 21, the treated water quality is effectively improved and is conveyed to the water inlet of the main water outlet pipe 13 through the first bypass pipe 301, so that the treated high-quality water can be mixed with water input from the municipal pipe network, the function of adjusting the water quality is realized, the domestic water obtained by the user finally reaches the standard, and the water quality of the user is improved. And as for the second water quality sensor 101, a sensor capable of detecting impurities, peculiar smell and color, high hardness and/or heavy metal content of the water quality can be adopted as required, and the installation position of the second water quality sensor 101 can be arranged at the water outlet of the main water inlet pipe 11, the water inlet and the water outlet of the main water supply pump 12 or the water inlet and the water outlet of the main water outlet pipe 13, so that the dynamic real-time water quality monitoring is realized.
In order to enable the domestic water of the user and the direct drinking water processing module 200 to share the non-negative pressure water supply module 100, firstly, the water pressure generated by the main water supply pump 12 in the non-negative pressure water supply module 100 needs to be large enough to meet the water pressure requirement of the domestic water of the conventional residential area, and for the water input into the direct drinking water processing module 200 by the non-negative pressure water supply module 100, a second pressure reducing valve 210 is further arranged between the pre-filtering component 21 and the main water outlet pipe 13, specifically, the second pressure reducing valve 210 can effectively reduce the water pressure entering the direct drinking water processing module 200, so as to avoid the damage to relevant parts in the direct drinking water processing module 200 due to the overlarge domestic water supply pressure of the domestic water of the user, and preferably, a first pressure reducing valve 310 is further arranged on the first bypass pipe 301. In addition, a steady flow compensator 14 is also provided between the main water inlet pipe 11 and the main water supply pump 12. In order to improve the quality of the direct drinking water, a cartridge filter 24 is further arranged between the pre-filtering assembly 21 and the first water pump 22. Meanwhile, the water outlet of the purified water tank 25 is connected with a second water pump 26, and an ultraviolet sterilizer 27 is arranged on a pipeline between the second water pump 26 and the purified water tank 25. Specifically, the water storage of the output of filter membrane module 23 supplies the user to use in water purification tank 25, and the water in water purification tank 25 can be carried to the straight drinking water pipe 2000 of user's end through the pressurization of second water pump 26 to can distribute to different user's homes, and ultraviolet sterilizer 27 can carry out germicidal treatment to the water of water purification tank 25 output as required, in order to improve the quality of water of straight drinking water. In order to conveniently achieve the purpose of adjusting the quality of the domestic water of the user, the multimedia filter 211 and the activated carbon filter 212 are respectively connected to the filtered water path through corresponding valve assemblies, each valve assembly comprises a first valve 201 and two second valves 202, the first valve 201 is connected in series in the filtered water path, two ports of the first valve 201 are respectively connected to the corresponding second valves 202, and the multimedia filter 211 and the activated carbon filter 212 are respectively connected between the two second valves 202 of the corresponding valve assemblies. Specifically, the multi-media filter 211 and the activated carbon filter 212 are respectively controlled by corresponding valve assemblies, and water is selectively filtered by the multi-media filter 211 and the activated carbon filter 212 as required, so that when a certain index of water quality is detected to be not met, the corresponding filter can be selected for treatment, and water quality can be rapidly adjusted.
Further, in order to effectively reduce energy consumption, a second bypass pipe 302 is connected between the water outlet of the main water inlet pipe 11 and the water inlet of the first water pump 22, and a second electronic control valve (not labeled) is disposed on the second bypass pipe 302. Specifically, in the actual use process, the water pump in the conventional non-negative pressure water supply device runs continuously for 24 hours, and at night, under the condition that the water consumption of the user is greatly reduced, the non-negative pressure water supply device keeps running state consistently, a large amount of electric energy is consumed, and under the condition that the water consumption of the user is low, the main water supply pump 12 in the non-negative pressure water supply module 100 is powered off and stops working, at this moment, the second electric control valve is opened, the first water pump 22 is powered on to run, and the water output by the main water inlet pipe 11 is pressurized by the first water pump 22 and then is conveyed to the main water outlet pipe 13 through the second bypass pipe 302, so that the water supply requirement of the user under the condition of low water consumption is met. The water consumption of the user can be monitored by the flow monitoring equipment, when the living water consumption of the user is small, the first water pump 22 is preferentially started to supply water, and when the water supply amount of the first water pump 22 cannot meet the requirement of the user, the main water supply pump 12 is started, so that the energy-saving effect is achieved.
Further, in order to fully utilize the wastewater generated by the direct drinking water treatment module 200, the dual water supply equipment of the embodiment further comprises a concentrated water collection tank 401 and a flushing water collection tank 402, wherein the wastewater discharge port of the filter membrane module 32 is connected with the concentrated water collection tank 401, and the back flushing water discharge ports of the pre-filtering module 21 and the security filter 22 are connected with the flushing water collection tank 402. Specifically, in the process of treating water conveyed by a municipal pipe network to form direct drinking water, the water which is filtered by the pre-filtering component 21 and the security filter 22 and conveyed by the municipal pipe network enters the filter membrane component 32, part of the water entering the filter membrane component 32 forms direct drinking water and is conveyed to the purified water tank 33, ions, organic matters, bacteria, viruses and the like which are intercepted on the water inlet side of the membrane form concentrated water along with the rest water and form a wastewater outlet of the filter membrane component 32, the wastewater collected by the concentrated water collecting tank 401 is only water which has higher hardness and turbidity and cannot meet the requirements of domestic water of users, however, the concentrated water is beneficial to plant growth due to the organic matters and inorganic salts contained in the concentrated water, and the concentrated water collected by the concentrated water collecting tank 401 can be used for irrigation of plants in small areas; the back washing water generated by back washing of the pre-filtering component 21 and the security filter 22, which contains chemicals and has an excessive pH value, cannot be used for plant irrigation, can be collected by the washing water collection box 402, and the water in the washing water collection box 402 can be used as washing water for public toilets in communities. Compare direct drinking water equipment in prior art directly arranges waste water outward, and the water resource that utilizes that this embodiment divides matter water supply equipment can the maximize reduces the waste, realizes green.
The invention also provides a water supply method of the quality-divided water supply equipment, which comprises a water quality adjusting water supply mode;
the water quality adjusting and supplying mode comprises: when the water quality detected by the second water quality sensor does not reach the standard, the water output by the main water outlet pipe is filtered by the pre-filtering component, pressurized by the first water pump and then conveyed to the main water outlet pipe through the first bypass pipe. Specifically, water in the municipal pipe network receives the influence of factors such as season, environment, different periods, quality of water in the municipal pipe network can be different, after the quality of water of municipal pipe network descends, this quality of water that will lead to user's domestic water descends, in order to ensure that the quality of water of user's domestic water keeps higher level, in order to improve user experience, supply the domestic water in-process to the user, when the quality of water that second water quality sensor detected does not reach the standard, then partial water of main outlet pipe output will be handled through the prefilter assembly who directly drinks in the water treatment module, thereby obtain the water source of higher quality of water, then, the water of the high quality of water after rethread first bypass pipe will be handled is carried to main outlet pipe, alright so with the quality of water of effective regulation user's domestic water, thereby make this embodiment quality of water supply equipment's function diversified, the commonality is stronger. Wherein, the water supply mode is adjusted to quality of water, specifically does: when the water impurities detected by the second water quality sensor exceed the standard, the water output by the main water outlet pipe is filtered by the multi-medium filter; and/or when the water detected by the second water quality sensor has peculiar smell and different color, the water output by the main water outlet pipe is filtered by the activated carbon filter.
In the energy-saving water supply mode, when the total water consumption of the user side is lower than a set value, the main water supply pump stops running, water introduced by the main water inlet pipe is conveyed to the first water pump through the second bypass pipe, and is pressurized by the first water pump and then conveyed to the main water outlet pipe through the first bypass pipe. Specifically, at no negative pressure water supply module operation in-process, main working shaft is in order to provide enough big water pressure, the power of main working shaft is great to lead to power consumption great, but, at night phase, user's water consumption is few, this moment, energy-conserving water supply mode starts, main working shaft stall, and utilize the water pressurization of the first water pump in the straight drinking water processing module as power with main inlet tube introduction to carry to the user side, thus, can be under the less condition of water consumption, the energy consumption of effectual this embodiment branch matter water supply equipment of reduction, realize green low carbon operation.
The water supply method of the quality-divided water supply equipment provided by the invention can supply water for the domestic water of a user and the direct drinking water processing module simultaneously by utilizing the non-negative pressure water supply module without independently configuring the non-negative pressure water supply module aiming at the direct drinking water function, thereby greatly reducing the installation cost and the use cost, simultaneously greatly reducing the occupied space of the whole equipment, simultaneously detecting the water quality condition of the water conveyed by the non-negative pressure water supply module by utilizing the second water quality sensor in the main water channel, and returning part of the water to the main water outlet pipe for output after being processed by the pre-filtering component when detecting that the water quality does not meet the requirement, thereby conveniently adjusting the water quality of the domestic water of the user, realizing the diversification of the functions of the quality-divided water supply equipment, reducing the occupied space and reducing the installation and use costs.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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 (6)

1. A quality-divided water supply device is characterized by comprising a direct drinking water treatment module and a water quality monitoring module; the direct drinking water treatment module comprises a pre-filtering component, a first water pump, a filter membrane component and a purified water tank which are sequentially connected to form a filtering waterway, wherein the pre-filtering component comprises a multi-media filter and an activated carbon filter which are connected to the filtering waterway; the water quality monitoring module comprises a monitor, a closed water tank and a first water quality sensor, the closed water tank is connected between the filter membrane component and the purified water tank, the first water quality sensor is arranged in the closed water tank, and the first water quality sensor is connected with the monitor; wherein the filter membrane component is a nanofiltration membrane component or an ultrafiltration membrane component;
the water quality monitoring module comprises a second water quality sensor connected in the main water path, a first bypass pipe is connected between the water inlet of the main water outlet pipe and the water outlet of the first water pump, and a first electric control valve is arranged on the first bypass pipe and is configured to be opened after the second water quality sensor monitors that the water quality in the main water path is reduced so that part of water output by the main water outlet pipe is processed by the pre-filtering assembly and is conveyed to the water inlet of the main water outlet pipe through the first bypass pipe;
a second bypass pipe is connected between the water outlet of the steady flow compensator and the water inlet of the first water pump, and a second electric control valve is arranged on the second bypass pipe;
in addition, divide matter water supply equipment still include former water tank and the force (forcing) pump that links together, the force (forcing) pump with prefiltration subassembly is connected.
2. The dual water supply apparatus according to claim 1, wherein the multi-media filter and the activated carbon filter are connected to the filtered water path through corresponding valve assemblies respectively, each valve assembly comprises a first valve and two second valves, the first valve is connected in series with the filtered water path, two ports of the first valve are connected to the corresponding second valves respectively, and the multi-media filter and the activated carbon filter are connected between the two second valves of the corresponding valve assemblies respectively.
3. The quality-graded water supply equipment according to claim 1, wherein the water quality monitoring module further comprises a third water quality sensor connected to the water outlet of the multi-media filter and/or the water outlet of the activated carbon filter.
4. A method of supplying water to the dual water supply facility as claimed in any one of claims 1 to 3, including a water quality adjusting supply mode;
the water quality adjusting and supplying mode comprises the following steps: when the water quality detected by the second water quality sensor does not reach the standard, the water output by the main water outlet pipe in the non-negative-pressure water supply module is filtered by the pre-filtering component, pressurized by the first water pump and then conveyed to the main water outlet pipe through the first bypass pipe.
5. The water supply method according to claim 4, wherein the water quality adjusting water supply mode is specifically:
when the water impurities detected by the second water quality sensor exceed the standard, the water output by the main water outlet pipe is filtered by the multi-medium filter;
and/or when the water detected by the second water quality sensor has peculiar smell and different colors, the water output by the main water outlet pipe is filtered by the activated carbon filter.
6. The water supply method according to claim 4, further comprising an energy-saving water supply mode that: when the total water consumption of the user side is lower than a set value, the main water supply pump stops running, water introduced by the main water inlet pipe is conveyed to the first water pump through the second bypass pipe, and then is pressurized by the first water pump and conveyed to the main water outlet pipe through the first bypass pipe.
CN201710486376.1A 2017-06-23 2017-06-23 Quality-divided water supply equipment and water supply method thereof Active CN107165221B (en)

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CN108824554A (en) * 2018-06-14 2018-11-16 苏州苏泵水务工程安装有限公司 Have the water system and its application method into water purification and self-cleaning function
CN114380414A (en) * 2022-02-07 2022-04-22 徐海旭 Improved system for pipeline direct drinking water

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