CN216918887U - Centralized direct drinking water equipment - Google Patents

Abstract

The utility model relates to centralized direct drinking water equipment which comprises a precision filter, an aseptic water tank and a water supply pump, wherein the precision filter is used for filtering suspended matters in water, the water outlet end of a tap water pipe is communicated with the water inlet end of the precision filter through a sand filter and a carbon filter in sequence, the water outlet end of the precision filter is communicated with the water inlet end of the aseptic water tank through an NF (nitrogen-fluoride) filter, and the water outlet end of the aseptic water tank is communicated with a water using end through the water supply pump. The utility model can directly treat tap water, effectively filter impurities and toxic substances in the tap water, and further prevent direct drinking water from being easily subjected to secondary pollution.

Description

Centralized direct drinking water equipment

Technical Field

The utility model relates to the technical field of water treatment, in particular to centralized direct drinking water equipment.

Background

The household small-sized water purifier uses tap water as a raw material, and the tap water is generally obtained by further purifying the tap water through technologies such as distillation, membrane filtration or reverse osmosis. The technologies remove harmful substances in water and simultaneously remove beneficial substances in the water, so that the content, hardness and pH value of dissolved total solids (TDS) in purified water are lower than those of tap water, trace elements which are beneficial to human bodies are reduced, and the health of the human bodies is not good for long-term drinking of the water. In addition, the small household water purifiers sold in the market place need to replace the filter element and the filter material regularly, so that the possibility of secondary pollution is high.

In the 'barreled water + water dispenser' mode, due to the low technical threshold and low capital requirement, the product quality and the sanitary standard can not be ensured by the addition of a plurality of 'individual workshops', for example, a 'black heart barrel' which adopts waste plastics, foreign garbage, medical needle tubes and the like as raw materials and 'black heart water' which is used for simply and roughly filtering the pure water by using tap water are adopted. Even the regular high-quality barreled water is difficult to maintain the stability of water quality, and the pollution problem caused by operations such as water changing of the barreled water in a water feeding link also exists; the barreled water is long in household use time, a matched water dispenser needs to be cleaned regularly, thallus organic matters are easy to accumulate in the water dispenser for a long time, and insects enter a water outlet and the like, so that the problem of secondary pollution is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a centralized direct drinking water device which can effectively filter impurities and toxic substances in tap water so as to prevent direct drinking water from being easily subjected to secondary pollution.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a centralized straight drinking water equipment, including precision filter, aseptic water tank and the working shaft that is used for filtering aquatic suspended solid, the water pipe goes out the water end and loops through sand filter and carbon filter with precision filter's the end intercommunication of intaking, precision filter's play water end pass through the NF filter with aseptic water tank's the end intercommunication of intaking, aseptic water tank's play water end passes through working shaft and water end intercommunication.

And an NF membrane is also arranged between the NF filter and the sterile water tank.

The sterile water tank is internally equipped with an air filter for preventing bacteria in the air outside the tank from entering the sterile water tank.

A first ultraviolet sterilizer is arranged between the water supply pump and the water using end.

The water using end is communicated with the water inlet end of the sterile water tank through a post-filter, and the post-filter is used for filtering impurities in water flowing back to the sterile water tank from the water using end.

And a second ultraviolet sterilizer is arranged between the water using end and the post-filter.

And a first sampling valve is arranged between the precision filter and the NF filter.

And a pure water flowmeter and a second sampling valve are sequentially arranged between the NF membrane and the sterile water tank.

And a low-pressure switch, a water feeding electromagnetic valve and a raw water flowmeter are sequentially arranged between the water outlet end of the tap water pipe and the sand filter.

The sewage draining ports of the sand filter, the carbon filter and the NF membrane are communicated with a sewage draining pipe, and a wastewater flowmeter is further arranged on the sewage draining pipe.

Advantageous effects

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following advantages and positive effects: the utility model has the advantages of directly treating tap water and further preventing direct drinking water from being easily subjected to secondary pollution, and solves the problems that the household small water purifier needs to replace a filter element and a filter material regularly, has high possibility of secondary pollution, does not generate bacterial organic matters which are easy to accumulate in a water dispenser for a long time due to long family use time and need to be cleaned regularly when being matched with the water dispenser, and is easy to cause secondary pollution when insects enter a water outlet and the like because of the long family use time; the utility model ensures that NF water inflow does not damage a membrane component and ensures safe use of nanofiltration by arranging the precision filter for removing most suspended matters; the utility model can filter out tiny particle impurities and bacteria brought in the process of water storage and water quality adjustment when the pipe network flows back to the machine room through the post-filter, thereby ensuring the sanitation and safety of secondary water supply.

Drawings

FIG. 1 is a schematic structural framework of an embodiment of the present invention;

FIG. 2 is a schematic front view of an embodiment of the present invention;

fig. 3 is a schematic view of the internal structure of the embodiment of the present invention.

Detailed Description

The utility model will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

The embodiment of the utility model relates to centralized direct drinking water equipment, please refer to fig. 1-3, which comprises a precision filter 6, a sterile water tank 13 and a water supply pump 14, wherein the precision filter 6 is communicated with the water outlet end of a tap water pipe through a low-pressure switch 1, and a water supply electromagnetic valve 2, a raw water flow meter 3, a sand filter 4 and a carbon filter 5 are sequentially connected between the low-pressure switch 1 and the precision filter 6; refined quartz sand is filled in the sand filter 4, the particle size of the quartz sand is 0.5-10mm, the filter material layer is the same as the sand filter layer of the filter tank, the bottom layer particles are the largest, the particles are gradually reduced, the particles on the uppermost layer are the smallest, and the flow is satisfied: 4m³H; flow rate: 15m/h, the quartz sand has the function of filtering particulate matters in water, and the quartz sand filter material is prepared by crushing and washing fine sieves and the like by using natural quartz ore as a raw material, is the most widely used water purification material with the largest amount in the water treatment industry, has no impurities, resists compression and abrasion, has high mechanical strength, stable chemical property, strong pollutant interception capability, high benefit and long service cycle, and is suitable for single-layer and double-layer filter tanks, filters and ion exchangers. The carbon filter 5 is filled with high-efficiency active carbon, which has the characteristics of high adsorption speed and large adsorption capacity, water passing through the sand filter 4 enters the carbon filter 5, trace residual chlorine in the water reacts with the active carbon rapidly to be removed, and the water comprises carcinogen Trihalomethane (THM) and haloacetic acid which can be effectively adsorbed by the active carbon, so that the residual chlorine in the water is removed, a Nanofiltration (NF) membrane (namely the NF membrane 10) cannot be damaged by impurities such as chlorine and the like to prolong the service life of the NF membrane, and after the carbon filter 5 works for a certain time, dirt on the surface of the active carbon needs to be subjected to treatmentBackwashing and forward washing. The precise filter 6 is communicated with the water inlet of the sterile water tank 13 through an NF filter 9, the high separation performance of an NF membrane 10 is utilized to separate water molecules and dissolved impurities in water and remove all toxic and harmful substances, the NF membrane 10 adopts a membrane separation method to remove the harmful substances such as bacteria, germs and the like in the water by controlling the operation pressure and keep the characteristics of beneficial trace elements and mineral substances, and the power consumption of the system is lower, the principle is that the water and the solution are separated by a permeable membrane, the water permeates into the solution, the osmotic pressure exists between the two phases, if the pressurization on the solution phase is greater than the osmotic pressure, the water in the solution phase permeates in the opposite direction of the water phase, the pure water is obtained by nanofiltration, namely, the raw water passes through the permeable membrane to become the pure water under enough pressure, the water dissolved matters and suspended matters which do not pass through the membrane, the concentration of the suspended matters is gradually increased, the precise filter 6 is used for removing most suspended matters, the NF water inlet is ensured not to damage the membrane component and the safe use of nanofiltration is ensured, and a first sampling valve 7 is arranged between the precision filter 6 and the NF filter 9.

An NF membrane 10, a pure water flowmeter 11 and a second sampling valve 12 are sequentially arranged between the NF filter 9 and the sterile water tank 13; the sand filter 4, the carbon filter 5 and the sewage outlet of the NF membrane 10 are all communicated with a sewage pipe, a waste water flowmeter 18 is also arranged on the sewage pipe, the water outlet of the sterile water tank 13 is communicated with a water using end 19 through a water supplying pump 14, a first ultraviolet sterilizer 16 is connected between the water supplying pump 14 and the water using end 19, a second ultraviolet sterilizer 17 is connected between the water using end 19 and a post-filter 15, and the microorganisms are irradiated by ultraviolet light with 253.7nm which is specially emitted by ultraviolet rays so as to change and destroy the tissue structure (DNA nucleic acid) of the microorganisms, so that the nucleic acid structure mutation, the organism loss replication, the reproductive capacity and the functions are destroyed, and the aims of sterilization and disinfection are achieved; the water end 19 is communicated with the water inlet of the sterile water tank 13 through the post-filter 15, the post-filter 15 can filter out tiny particle impurities and bacteria brought in the process of water storage and water quality adjustment when a pipe network flows back to a machine room, and the sanitation and safety of secondary water supply are ensured.

The working principle of the embodiment is as follows:

when in use, water enters the sand filter 4 through the water inlet to filter particles in the water, then enters the carbon filter 5, the carbon filter 5 is filled with high-efficiency active carbon, the water passing through the sand filter 4 enters the carbon filter 5, a small amount of residual chlorine in the water rapidly reacts with the active carbon to be removed, and the water including carcinogenic Trihalomethane (THM) and haloacetic acid can be effectively adsorbed by the active carbon, so that the residual chlorine in the water is removed, the NF membrane 10 cannot be damaged by impurities such as chlorine and the like to prolong the service life of the NF membrane, then the precision filter 6 is used for removing most suspended matters to ensure that the NF water enters the NF filter 9 without damaging the membrane component and ensure the safe use of nanofiltration, then the water enters the NF filter 9, the water molecules and dissolved impurities in the water are separated by utilizing the high separation performance of the NF membrane 10, all toxic and harmful substances are removed, and the principle is that the water is separated from the solution by a permeable membrane, water permeates into the solution, osmotic pressure exists between two phases, if the pressure on the solution phase is higher than the osmotic pressure, the water in the solution phase permeates in the opposite direction of the water phase, pure water is obtained by nanofiltration, namely, raw water is changed into pure water through the osmotic membrane under enough pressure, the concentration of water solubles and suspended matters which do not pass through the membrane is gradually increased, then the water enters the sterile water tank 13, the sterile water tank 13 is made of stainless steel materials, the sterile water tank 13 is provided with an air filter which can prevent bacteria in the air outside the tank from entering the water tank and ensure that the pure water is not polluted by external bacteria, the sterile water tank 13 is also provided with a water level controller and a water level meter which ensure the normal height of the water level of the water tank and ensure the safety and reliability of water supply, the water in the sterile water tank 13 is pumped out through a water supply pump 14 and is disinfected through a first ultraviolet sterilizer 16, and the ultraviolet rays emit specific 253.7nm ultraviolet light to irradiate microorganisms, so as to change and destroy the tissue structure (DNA nucleic acid) of the microorganism to cause the mutation of the nucleic acid structure, the organism loses the replication, the reproductive capacity and the function are destroyed, thereby achieving the aims of sterilization and disinfection; the physical and chemical properties of water are not changed, pollution caused by additives brought into pure water is avoided, and the water purifier has the characteristics of low energy consumption, no toxic or side effect and no secondary pollution, circulating water generated by a water end 19 is disinfected by a second ultraviolet sterilizer 17, and filtered by a post-filter 15, and the post-filter 15 can filter out tiny particle impurities and bacteria brought in the water storage and water quality adjusting process of a pipe network flowing back to a machine room, so that the sanitation and safety of secondary water supply are ensured.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The utility model provides a centralized straight drinking water equipment, its characterized in that, including precision filter (6), aseptic water tank (13) and working shaft (14) that are used for filtering aquatic suspended solid, the water pipe play water end loop through sand filter (4) and carbon filter (5) with the end intercommunication of intaking of precision filter (6), the play water end of precision filter (6) pass through NF filter (9) with the end intercommunication of intaking of aseptic water tank (13), the play water end of aseptic water tank (13) passes through working shaft (14) and end (19) intercommunication with water.

2. Centralized direct drinking water apparatus according to claim 1, characterized in that an NF membrane (10) is further arranged between the NF filter (9) and the aseptic water tank (13).

3. A centralized direct drinking water apparatus according to claim 1, characterized in that the aseptic water tank (13) is internally equipped with an air filter for preventing bacteria in the air outside the tank from entering the aseptic water tank (13).

4. A centralized direct drinking water apparatus according to claim 1, wherein a first ultraviolet sterilizer (16) is provided between the water supply pump (14) and the water using end (19).

5. A centralized direct drinking water apparatus according to claim 1, wherein the water usage end (19) is further communicated with the water inlet end of the aseptic water tank (13) through a post-filter (15), and the post-filter (15) is used for filtering out impurities in the water returned from the water usage end (19) to the aseptic water tank (13).

6. A centralized direct drinking water apparatus according to claim 5, wherein a second UV sterilizer (17) is arranged between the water using end (19) and the post-filter (15).

7. A centralized direct drinking water apparatus according to claim 1, wherein a first sampling valve (7) is arranged between the precision filter (6) and the NF filter (9).

8. A centralized direct drinking water apparatus according to claim 2, characterized in that a pure water flow meter (11) and a second sampling valve (12) are arranged between the NF membrane (10) and the aseptic water tank (13) in sequence.

9. The centralized direct drinking water device according to claim 1, wherein a low pressure switch (1), an upper water electromagnetic valve (2) and a raw water flow meter (3) are sequentially arranged between the water outlet end of the tap water pipe and the sand filter (4).

10. A centralized direct drinking water device according to claim 2, wherein the sewage outlets of the sand filter (4), the carbon filter (5) and the NF membrane (10) are all communicated with a sewage pipe, and a wastewater flow meter (18) is arranged on the sewage pipe.

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