CN108840485A - Leading filtration system of drinking water - Google Patents

Abstract

The invention relates to a drinking water pre-filtering system, which belongs to the technical field of water purifying equipment and comprises a shell, wherein a water inlet pipe, an ultrafiltration unit, a resin filtering unit, an active carbon filtering unit, a composite active carbon filtering unit and a post-carbon filtering unit are sequentially arranged on the shell according to the water flow direction, a three-way joint is arranged between the composite active carbon filtering unit and the post-carbon filtering unit, a water inlet of the three-way joint is connected with the composite active carbon filtering unit through a pipeline, one water outlet of the three-way joint is communicated with the post-carbon filtering unit through a pipeline, the other water outlet of the three-way joint is connected with a pressure sensing pipeline, and one end, far away from the three-way joint, of the pressure sensing pipeline. According to the technical scheme, the effect of purifying water quality is realized by filtering harmful substances such as rust, bacteria, organic matters, heavy metals and acid radical ions in the drinking water through each filtering unit, and meanwhile, the taste of the water is improved through the post-carbon filtering unit, so that the water purifying device is safe, environment-friendly and good in sanitation.

Description

A pre-filter system for drinking water

technical field

The invention relates to a pre-filtration system for drinking water, which belongs to the technical field of water purification equipment.

Background technique

The water purification device is a water treatment equipment that performs deep filtration and purification treatment of water quality according to the requirements of water use. The water purification device can effectively filter out rust, sand, colloid, and adsorb residual chlorine, smell, color, pesticides and other chemicals in the water. It can effectively remove bacteria, germs, toxins, heavy metals and other impurities in water. The application of water purification technology in the field of drinking water will make the phenomenon of "acclimatization" soon a thing of the past, and effectively solve the endemic diseases caused by excessive harmful substances in groundwater in many places. At the same time, tap water or groundwater sources are susceptible to secondary pollution for various reasons. Filtering drinking water can effectively block and filter harmful substances such as sand, mud, rust and bacteria. However, if the filter element material is used for a long time and is not replaced in time, it will also cause secondary or tertiary pollution of the water quality, which is detrimental to people's drinking water health. At the same time, since the main water pipe is mainly made of metal or plastic for water supply, after a period of use, it will be polluted by rust, sand and mud, and the water pipe will easily age, burst and leak, which will affect normal life and cause property loss. Drinking water pre-filtration system is of great significance.

Contents of the invention

In order to solve the problems existing in the prior art, the embodiment of the present invention provides a pre-filter system for drinking water, which filters the drinking water through a plurality of filter units, and the filtered water is hygienic and safe for family use. The specific technical scheme is as follows:

A pre-filter system for drinking water, comprising a shell, on which a water inlet pipe, an ultrafiltration unit, a resin filter unit, an activated carbon filter unit, a composite activated carbon filter unit, and a post carbon filter unit are sequentially arranged in accordance with the direction of water flow, A three-way joint is arranged between the composite activated carbon filter unit and the rear carbon filter unit, the water inlet of the three-way joint is connected to the pipeline of the composite activated carbon filter unit, and one of the water outlets of the three-way joint is connected to the The post-mounted carbon filter unit is connected with pipelines, the other water outlet of the three-way joint is connected with a pressure sensing pipeline, and the end of the pressure sensing pipeline far away from the three-way joint is provided with a low-pressure sensor.

As an improvement of the above technical solution, a flow meter is arranged between the water inlet pipe and the ultrafiltration unit.

As an improvement of the above technical solution, a manual sewage outlet is also provided on one side of the ultrafiltration unit.

As an improvement of the above technical solution, the housing is provided with an ultrafiltration unit fixing seat for fixing the ultrafiltration unit.

As an improvement of the above technical solution, the casing is also provided with a fixing bracket for fixing the rear carbon filter unit.

As an improvement of the above technical solution, a protective cover is provided on the housing, and the ultrafiltration unit and the rear carbon filter unit are located inside the housing and the protective cover.

As an improvement of the above technical solution, a resin filter unit upper cover is arranged above the resin filter unit, and a filter unit water inlet and a filter unit water outlet are arranged on the resin filter unit upper cover, and a porous filter unit is arranged inside the resin filter unit. A filter screen, the porous filter screen has a gap with the inner wall of the resin filter unit, the porous filter screen is filled with resin filter material, and there is a filter screen joint above the porous filter screen, and the filter screen joint communicates with the water inlet of the filter unit .

As an improvement of the above technical solution, there is a groove on the end of the porous filter which is away from the filter joint.

As an improvement of the above technical solution, a soft water-permeable cushion is wrapped around the surface of the groove and the porous filter.

As an improvement of the above technical solution, a KDF filter unit is also arranged after the post carbon filter unit.

Above-mentioned technical scheme has the effect of following two aspects:

(1) Through each filter unit, the harmful substances such as rust, bacteria, organic matter, heavy metals and acid radical ions in drinking water can be purified to achieve the effect of purifying water quality, and at the same time, the post-installed carbon filter unit can improve the taste, which is safe, environmentally friendly and hygienic;

(2) The filtration system can be equipped with multiple sensors to monitor the water quality TDS value and ORP value in real time, and has the function of early warning of water leakage. The processed data can be transmitted to the display structure such as the display screen by using the control chip. It can be transmitted to a computer, mobile phone or server through wireless transmission, and the corresponding information can be displayed in real time, which is convenient for management and maintenance.

Description of drawings

FIG. 1 is a schematic structural diagram of a drinking water pre-filtration system in Embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of the internal structure of a drinking water pre-filter system in Embodiment 1 of the present invention after the protective cover is removed.

Fig. 3 is a flow chart of filtering of each unit in the system in Embodiment 1 of the present invention.

Fig. 4 is a schematic diagram of the internal structure of the resin filtration unit in the third embodiment of the present invention.

Detailed ways

In order to make the purpose, 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 in conjunction with this specific embodiment.

Embodiment one

As shown in Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention firstly provides a drinking water pre-filtration system, including a housing 10, on which a water inlet pipe 20 and an ultrafiltration unit are sequentially arranged according to the direction of water flow 22. Resin filter unit 23, activated carbon filter unit 24, composite activated carbon filter unit 25, post-position carbon filter unit 27, between composite activated carbon filter unit 25 and post-position carbon filter unit 27, there is a three-way joint 26, the three-way joint 26 The water inlet is connected with the composite activated carbon filter unit 25 pipeline, one of the water outlets of the three-way joint 26 is connected with the rear carbon filter unit 27 pipeline, and the other water outlet of the three-way joint 26 is connected with a pressure sensing pipeline 40, A low pressure sensor 41 is provided on the end of the pressure sensing pipeline 40 away from the tee joint 26 . A KDF filter unit 28 can also be arranged after the post carbon filter unit 27, and the KDF filter unit 28 can filter heavy metals and chlorine in the water.

The ultrafiltration unit 22 is one of the membrane separation technologies driven by pressure. Under the pressure, water flows through the surface of the membrane, and the water smaller than the membrane pores and small molecule solutes permeate the membrane to become purified water and impurities larger than the membrane pores. Is trapped and discharged with the water flow. The ultrafiltration process is a dynamic filtration, and the separation is completed in a flowing state. Impurities are limitedly deposited on the membrane surface, and the ultrafiltration rate decays to a certain extent and tends to balance. The filtration function can be restored by cleaning the impurities. The ultrafiltration unit can filter impurities such as rust and bacteria larger than 0.01 μm in the water.

The resin filter unit 23 is filled with a resin filter material 50. The resin filter material 50 is a type of polymer, also called an adsorption resin, which can be used to remove organic matter in water, decolorize sugar solution, and separate and refine natural products and biochemical products. Wait. There are many kinds of adsorption resins, and changes in monomers and functional groups on monomers can endow the resins with various special properties. Polymers such as polystyrene resin and polyacrylate resin are commonly used. Adsorption resin is a resin adsorbent characterized by adsorption and has a porous three-dimensional structure. It is a newly developed porous resin in the field of polymers in recent years. It is made of monomers such as styrene and divinylbenzene in the presence of organic solvents such as toluene. Small circles like fish roe are prepared by suspension copolymerization. ball. The resin filter unit 23 has the following functions: it can absorb organic matter in water; calcium carbonate; it can decolorize, clarify and make the filtered liquid transparent; it can filter particles and impurities; it has good deodorizing effect; it can remove residual chlorine in water.

Activated carbon filter unit 24 is filled with activated carbon, which can use the porosity of activated carbon to absorb fine substances in water. It is often used in water treatment for decolorization, deodorization, dechlorination, removal of organic matter and heavy metals, removal of synthetic detergents, bacteria, viruses and radioactivity, etc. pollutants.

The composite activated carbon filter unit 25 uses PP cotton core composite activated carbon, which can filter 1 micron floating matter and chloride ions, etc. The rear carbon filter unit 27 is mainly filled with coconut shell activated carbon, which can absorb other flavors in the water and improve the taste .

The three-way joint 26 is divided into a water inlet and two water outlets, wherein the water inlet is connected with the composite activated carbon filter unit 25 pipelines, and a water outlet of the three-way joint 26 is connected with the rear carbon filter unit 27 pipelines, and the three-way joint Another water outlet of 26 is connected with low-pressure sensor 41, and low-pressure sensor 41 can sense the size of water pressure in the system, and real-time monitoring pressure drops or the situation of no pressure.

KDF filter unit 28 is filled with KDF filter material. KDF is a high-purity zinc-copper alloy, which can perfectly remove heavy metals, acid radical ions, chloride ions and chlorine gas in water, improve the degree of activation of water, and be more conducive to the human body's ability to absorb water. Absorption, protection of human health, and promotion of human metabolism. A water outlet pipe 29 is connected to the rear end of the KDF filter unit 28, and a water outlet solenoid valve 291 is arranged on the water outlet pipe 29.

Further, a flow meter 21 is arranged between the water inlet pipe 20 and the ultrafiltration unit 22 , and the flow of water in the system can be detected through the flow meter 21 .

Furthermore, a sewage outlet is provided on one side of the ultrafiltration unit 22, and the sewage outlet can be a manual sewage outlet 30 or an electric sewage valve 31, and the impurities filtered by the ultrafiltration unit 22 are discharged through the sewage outlet.

In the above scheme, the housing 10 is provided with an ultrafiltration unit fixing seat 13 for fixing the ultrafiltration unit 22, and the housing 10 is also provided with a fixing frame 12 for fixing the rear carbon filtration unit 27 and the KDF filtration unit 28, and the ultrafiltration unit The fixing seat 13 and the fixing frame 12 can improve the reliability of each structure in the casing 10 . The housing 10 is provided with a protective cover 11 , and the ultrafiltration unit 22 , post carbon filter unit 27 and KDF filter unit 28 are located in the enclosed space formed by the housing 10 and the protective cover 11 .

Embodiment two

On the basis of the main structure of Embodiment 1, a water quality detection sensor, a water leakage detection sensor, a control chip and a corresponding parameter display structure can be added in the filtration system, wherein the water quality detection sensor can be arranged after the ultrafiltration unit 22 and the KDF filtration unit 28, The water leakage detection sensor can be set in the casing 10, and the control chip can analyze the data detected by the low pressure sensor 41, the flow meter 21, the water quality detection sensor and the water leakage detection sensor, calculate the water quality TDS value, ORP value, and have a water leakage early warning function , the control chip can transmit the processed data to a display structure such as a display screen, or transmit it to a computer, mobile phone or server through wireless transmission, and display corresponding information in real time. In the present embodiment, the low-voltage sensor 41 can adopt the ITiGER quick-connect, 1828-A low-voltage switch sensor; the water quality detection sensor adopts a TDS water quality probe; the probe of the water leakage detection sensor adopts an analog resistance design, when there is no moisture on the surface of the probe, The resistance value is infinite, and when moisture exists, the resistance value decreases with the increase of humidity, thereby realizing the water leakage warning function.

Embodiment three

As shown in Figure 4, based on the main structure of the drinking water pre-filtration system above, the filter structure of the resin filter unit 23, activated carbon filter unit 24 or composite activated carbon filter unit 25 can be further improved, taking the resin filter unit 23 as an example, The specific structure is as follows: a resin filter unit upper cover 231 is arranged above the resin filter unit 23, a filter unit water inlet 232 and a filter unit water outlet 233 are arranged on the resin filter unit upper cover 231, and a porous filter screen 234 is arranged inside the resin filter unit 23 There is a gap between the porous filter screen 234 and the inner wall of the resin filter unit 23, the resin filter material 50 is filled in the porous filter screen 234, the filter screen joint 235 is arranged above the porous filter screen 234, and the filter screen joint 235 communicates with the water inlet 232 of the filter unit.

In this embodiment, the upper cover 231 of the resin filter unit is detachably connected to the porous filter screen 234. During the installation process, the resin filter material 50 is first filled in the porous filter screen 234, and then the porous filter screen 234 is connected to the upper cover 231 of the resin filter unit. , and then the resin filter unit upper cover 231 is fixedly connected with the main structure of the resin filter unit 23 . The water flow first enters the filter screen joint 235 from the filter unit water inlet 232, then enters the inside of the porous filter screen 234, passes through the filtration of the resin filter material 50, and enters the porous filter screen 234 and the resin filter unit 23 from the mesh of the porous filter screen 234. The gap of the inner wall then exits from the water outlet 233 of the filter unit. This structure can increase the stroke of the water flow in the resin filter unit 23, thereby improving the filtering effect.

Further, the end of the porous filter 234 away from the filter joint 235 has a groove 236 , and a soft water-permeable cushion 60 is wrapped around the surface of the groove 236 and the porous filter 234 . During the filtration process of the resin filter unit 23, due to the continuous flow of water, the porous filter screen 234 will vibrate. In order to reduce the vibration and improve the service life, a soft permeable cushion layer 60 is used to protect the outside of the porous filter screen 234, and filter through the resin. The direction of the water flow in the unit 23 can be found that the bottom of the resin filter unit 23 is prone to impurity deposition, so the water flow is filtered to a certain extent through the isolation of the soft water-permeable cushion layer 60 to prevent impurities from entering this position, and the soft water-permeable cushion Layer 60 may be made in the form of a porous sponge. The structure of the groove 236 has three functions, one is to reduce the volume in the porous filter screen 234 and reduce the consumption of the resin filter material 50; the other is to improve the tightness of the soft permeable cushion 60 to prevent falling off; the third is because The porous filter 234 has a certain degree of flexibility, and when the porous filter 234 is inserted into the inner wall of the resin filter unit 23 , it can gradually realize a compressed state with the inner wall of the resin filter unit 23 .

Although, the present invention has been described in detail with general description and specific embodiments above, some modifications or improvements can be made on the basis of the embodiments of the present invention, which will be obvious to those skilled in the art . Therefore, the modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the protection scope of the present invention.

Claims (10)

1. A pre-filtration system for drinking water, characterized in that it comprises a housing (10), on which the housing (10) is successively provided with a water inlet pipe (20), an ultrafiltration unit (22), resin Filter unit (23), activated carbon filter unit (24), composite activated carbon filter unit (25), post carbon filter unit (27), between the composite activated carbon filter unit (25) and post carbon filter unit (27) A three-way joint (26) is provided, and the water inlet of the three-way joint (26) is connected to the pipeline of the composite activated carbon filter unit (25), and one of the water outlets of the three-way joint (26) is connected to the rear The carbon filter unit (27) is in pipeline communication, and the other water outlet of the three-way joint (26) is connected with a pressure sensing line (40), and the pressure sensing line (40) is far away from the three-way joint ( 26) is provided with a low-voltage inductor (41) at one end. 2. The drinking water pre-filtration system according to claim 1, characterized in that a flow meter (21) is arranged between the water inlet pipe (20) and the ultrafiltration unit (22). 3. A drinking water pre-filtration system according to claim 2, characterized in that a manual sewage outlet (30) is further provided on one side of the ultrafiltration unit (22). 4. A drinking water pre-filtration system according to claim 1, characterized in that, the housing (10) is provided with an ultrafiltration unit fixing seat (13) for fixing the ultrafiltration unit (22). 5 . The drinking water pre-filter system according to claim 4 , characterized in that, the housing ( 10 ) is also provided with a fixing frame ( 12 ) for fixing the rear carbon filter unit ( 27 ). 6 . 6. A kind of drinking water pre-filtration system as claimed in claim 1, characterized in that, the housing (10) is provided with a protective cover (11), the ultrafiltration unit (22) and the post carbon The filter unit (27) is located inside the housing (10) and the protective cover (11). 7. A kind of drinking water pre-filtration system as claimed in claim 1, characterized in that, a resin filter unit upper cover (231) is arranged above the resin filter unit (23), and the resin filter unit upper cover ( 231) is provided with a filter unit water inlet (232) and a filter unit water outlet (233), the inside of the resin filter unit (23) is provided with a porous filter screen (234), and the porous filter screen (234) is connected with the resin filter The inner wall of the unit (23) has a gap, the porous filter screen (234) is filled with a resin filter material (50), and the porous filter screen (234) has a filter screen joint (235) above the filter screen joint (235). ) communicates with the filter unit water inlet (232). 8. A pre-filter system for drinking water according to claim 7, characterized in that a groove (236) is provided on the end of the porous filter (234) away from the filter joint (235). 9 . The drinking water pre-filter system according to claim 8 , characterized in that, a soft water-permeable cushion ( 60 ) is wound on the surface of the groove ( 236 ) and the porous filter screen ( 234 ). 10. A drinking water pre-filter system according to claim 1, characterized in that, a KDF filter unit (28) is also arranged after the post carbon filter unit (27).