CN104591450B - A kind of running water low temperature Intelligent antibacterial pipe-line system - Google Patents

Abstract

The invention provides a low-temperature intelligent sterilization pipeline system for tap water, which includes a water tank and a control cabinet. A pressure gauge, a valve, a pre-activated carbon filter, a backflow preventer and Ozone generator, the water outlet of the water tank is connected with post activated carbon filter, remote pressure gauge, first lift pump, active sand filter, iron and manganese removal filter, multimedia filter, water softener, security filter, Ultrafiltration equipment, nanofiltration equipment, ultraviolet sterilizer, secondary lift pump, water outlet pressure sensor and sterile water storage tank, countercurrent forming device and filter screen are installed inside the water tank, and cooling circulating water is passed through the outer wall of the water tank. Through the tap water low-temperature intelligent sterilization pipeline system of the present invention, the water quality of tap water after treatment can reach or exceed the standard of the new version of "Drinking Water Hygienic Standard" (GB5749-2006).

Description

A low-temperature intelligent sterilization pipeline system for tap water

technical field

The invention relates to a tap water low-temperature intelligent sterilization pipeline system, which belongs to the technical field of tap water treatment.

Background technique

Tap water refers to the water that is purified and disinfected by tap water treatment plants and meets the corresponding standards for people's living and production use. Domestic water is mainly drawn from rivers, lakes, groundwater, and surface water through the water intake pumping station of the water plant, and the water plant is processed by the water plant in accordance with the "National Domestic Drinking Water Relevant Hygienic Standards" through processes such as sedimentation, disinfection, and filtration, and finally passes through the water distribution pumping station sent to each user.

Tap water is closely related to people's lives, and the quality of tap water is closely related to people's health. my country's water quality standards are still far behind the international standards. At present, the safety of water supply is facing the dual pressure of increasingly serious water source pollution and gradual improvement of water quality standards, which puts forward higher requirements for advanced water treatment technology.

The traditional water treatment process mainly adopts the following processes: extracting water source→coagulation→sedimentation→filtering→sending it to a clean water tank for disinfection→inputting it into a water supply pipeline. However, the pollution of water resources is becoming increasingly serious, especially heavy metal pollution and organic matter pollution. According to statistics, about 50% of my country's surface water sources are polluted, and hundreds of organic compounds and heavy metal ions enter the water source; groundwater sources contain fluorine, arsenic, and iron. , manganese and other excessive phenomena. However, most of the water plants in our country still use traditional water treatment processes. If the water source is polluted by heavy metal ions and organic compounds, the above-mentioned traditional processes will be powerless. Therefore, it is necessary to carry out advanced treatment of water supply.

Although the pollution of water source water quality is increasing, but with the improvement of people's living standards, higher requirements are put forward for the quality of drinking water. For this reason, the "Drinking Water Hygienic Standard" (GB5749-2006) was implemented on July 1, 2007. The water quality indicators in the new standard increased from 35 in 1985 to 106, and the limits of many indicators were more stringent. The new standard focuses on strengthening the control requirements for microorganisms, heavy metals and organic pollutants, and is basically in line with the water quality standards of international organizations and developed countries.

With the progress of society, people are using more and more intelligent control systems. Therefore, in order to further ensure the safety of water supply, for people's health and social development, it is necessary to research and develop a new type of intelligent tap water treatment System, the system can automatically control the equipment to carry out advanced treatment of tap water supply, so that the quality of the treated water can meet the new standards stipulated by the state.

Contents of the invention

Purpose of the invention: The purpose of the invention is to solve the deficiencies of the prior art and provide a low-temperature intelligent sterilization pipeline system for tap water.

Technical solution: In order to achieve the above purpose, a tap water low-temperature intelligent sterilization pipeline system of the present invention includes a water tank and a control cabinet, the water tank is connected to the water outlet of the raw water, the water inlet of the water tank is connected to the raw water outlet There are also pressure gauges, valves, pre-activated carbon filters, backflow preventers and ozone generators in sequence between the water outlets. The water outlet of the water tank is connected with post-installed activated carbon filters, remote pressure gauges, and the first lift pump. , active sand filter, iron and manganese removal filter, multi-media filter, water softener, security filter, ultrafiltration equipment, nanofiltration equipment, ultraviolet sterilizer, secondary lift pump, outlet pressure sensor and sterile water storage tank, the inside of the water tank is provided with a countercurrent forming device and a filter net, the countercurrent forming device includes two upper and lower funnel-shaped parts, the middle of the bottom of the upper funnel-shaped part is provided with a water flow channel, and the lower The bottom of the funnel-shaped part is sealed, the filter is located below the countercurrent forming device, and the water tank is divided into upper and lower chambers. The bottom of the water tank is provided with a cleaning and sewage outlet, an inflation outlet, and The left and right sides of the lower chamber inside the water tank are provided with ultraviolet sterilizing devices, and the outer wall of the water tank is provided with cooling circulating water, and the cooling circulating water is controlled by a water pump.

The pressure gauge provided in the present invention can display the pressure situation of the water flow in the pipeline;

The pre-activated carbon filter is equipped with a preliminary filter for the raw water to remove impurities and facilitate the next step of operation;

Equipped with a backflow preventer to protect the pipeline and prevent backflow caused by taking medicine and other reasons, which will cause secondary pollution;

The equipped ozone generator can carry out preliminary disinfection and sterilization treatment on the water source, and put the ozone generator before the subsequent flocculation and sedimentation, which can oxidize metal substances, improve the coagulation and filtration effect, replace the previous chlorine disinfection, and reduce the toxicity of chlorine Side effects, but also play a role in sterilization, can oxidize organic matter in water, reduce the difficulty of subsequent treatment, and reduce the role of pollutants;

The primary and secondary lifting pumps are mainly used to realize the gravity lifting of the raw water, so as to realize the gravity flow of the subsequent treatment process and reduce the pressure of the subsequent treatment equipment;

Equipped with an active sand filter, the active sand filter is a high-efficiency filtration treatment device integrating coagulation, clarification and filtration. Compared with the conventional flocculation and sedimentation filtration treatment device, the active sand filter has the following advantages: Filtration runs continuously, no need to stop and backwash, high efficiency; no need to backwash water pumps, fans to flush water tanks and valves, etc.; integrate coagulation, sedimentation and filtration, greatly simplifying the process and occupying space; low operation and maintenance costs; for high Wastewater with SS content does not need pretreatment (influent SS can reach 150mg/L); compared with conventional sand filtration process, it can save 30%-40% of chemical agents; it can save 70% of equipment space; it can realize deep filtration ;The pressure head loss of the filter bed is small, only 0.5m; a single homogeneous filter material is used, no gradation layer is required; the filter material is continuously cleaned, the filtering effect is good, and there is no problem with the initial filtrate; the effluent water quality is stable; easy to expand;

The equipped filter for removing iron and manganese can remove excess iron and manganese in water. Although iron and manganese play an irreplaceable role in maintaining life activities, for the human body, the daily intake of iron is only 20mg, and the human body The content of medium manganese is only 10 ~ 20mg. For such a small amount of iron and manganese demand, human beings can completely make up for it through diet. In order to prevent the occurrence of potential harm to the human body caused by excessive intake of high iron and manganese, it can be removed through iron and manganese filters. excess iron and manganese;

The equipped multi-media filter can make full use of one or several filter media, and pass the water with high turbidity through a certain thickness of granular or non-granular materials under a certain pressure, so as to effectively remove suspended impurities and clarify the water. ;

The equipped water softener can remove the alkali, scale and some inorganic salts in the raw water to reduce the hardness of the water;

The security filter provided is a precision filter. Compared with the coarse filtration in the pre-treatment process, the security filter can further remove some impurities with small particles in the raw water;

The ultrafiltration equipment is mainly designed to meet the new water quality standards. The previous water treatment equipment can remove some organic matter and impurities in the water. etc. have strict requirements, therefore, need to use more advanced equipment, and ultrafiltration can be applied to water treatment because of the following unique advantages: (1) ultrafiltration is a green physical separation technology, its separation The mechanism is mainly sieving and diffusion. Even if no coagulant is added, it can effectively remove suspended solids and colloidal substances in the raw water, and reduce the turbidity of the effluent to below 0.1NTU. Therefore, ultrafiltration can use less or even no coagulant, thereby reducing the pollution of coagulant to water quality. (2) Ultrafiltration technology can effectively remove almost all pathogenic microorganisms, including cryptosporidium, giardia, bacteria and viruses, etc., and the quality of effluent water can generally meet the requirements of water quality standards for microbial indicators, so in principle, there is no need to further filter the effluent Sterilize. Of course, it is also necessary to add a small amount of disinfectant to the water to maintain a certain continuous disinfection ability, so as to avoid secondary pollution of the water during the transportation and distribution process. (3) Ultrafiltration can intercept substances with a relative molecular mass ranging from 500 to 106, and most of the molecular weights of organic substances in natural water are also in this range, so ultrafiltration can effectively remove organic substances in raw water. At the same time, because the use of ultrafiltration technology can reduce the amount of disinfectant, it can significantly reduce the generation of disinfection by-products in water, thereby improving the chemical safety of water. (4) In conventional filtration, pollutants are removed by adsorption on the surface of the filter material, which is a random process, so it has volatility. Compared with the traditional treatment process, the process of ultrafiltration to remove pollutants in water is through the direct screening of membrane pores, so it has excellent stability in the removal of pollutants. (5) The operating pressure usually used for ultrafiltration is 0.1~0.4MPa, which is lower than that of nanofiltration membrane, and the energy consumption is relatively low. (6) The filtration time of water passing through the ultrafiltration membrane is very short, which makes the volume of the ultrafiltration membrane equipment very small, which is far beyond the reach of other conventional treatment processes. (7) The application scale and processing capacity can be changed in a large range, the equipment can realize industrial production and automatic control, and the daily operation and maintenance management are more convenient.

The nanofiltration equipment provided is mainly to make up for some shortcomings of ultrafiltration equipment. It acts similarly to reverse osmosis membrane, especially for decolorization, removal of natural organic matter and synthetic organic matter (such as pesticides, etc.), three substances, disinfection The by-products (trihalomethanes and haloacetic acids) and their precursors and volatile organic compounds can ensure the biological stability of drinking water, etc. When used in conjunction with ultrafiltration equipment, it can fully treat drinking water for advanced treatment;

Although the use of membrane technology generally does not require sterilization treatment, tap water is drinking water for people after all, which is directly related to people's water safety. In order to further ensure water safety, it is necessary to further strengthen sterilization treatment. The sterilizer can achieve a thorough sterilization effect. The ultraviolet disinfection method is safe, economical, less selective for bacteria, and the water quality will not change, and it can also remove excess ozone during ozone disinfection;

Equipped with water outlet pressure sensor and remote pressure gauge to detect the pressure in the pipeline and better control the operating system;

The countercurrent forming device in the water tank mainly plays the role of water blocking, water passing, two-way flow formation and water flow mixing, and finally achieves the purpose of adjusting the water body pressure inside the water tank and stabilizing the water flow. At the same time, it can make the water quality of the water tank The sedimentation material is fully precipitated, which makes the filtering effect better, thus enhancing the purification ability of the water tank; the filter screen can be used for preliminary filtration of water, and the ultraviolet sterilizer of the water tank can neutralize the residual ozone in the water tank, and at the same time play a sterilizing role ;

The cooling circulating water can cool down the water tank and prevent the water flow inside the water tank from heating up due to ozone sterilization and ultraviolet sterilization. The low temperature water flow is more convenient for the next series of purification treatment;

The use of sterile water storage tanks for water storage can avoid the contamination of treated sterile water during storage.

The ultrafiltration membrane used in the ultrafiltration equipment is a polysulfone hollow fiber ultrafiltration membrane with a membrane pore size of 0.02-0.1 μm. Compared with other membranes, the hollow fiber has a better sterilization effect. At the same time, the polysulfone membrane has the advantages of good acid-base stability, anti-oxidation, and high strength. Compared with other membrane materials, it has a longer service life. longer.

The nanofiltration membrane used in the nanofiltration equipment is a hollow fiber nanofiltration membrane with a membrane pore size of 1.2-2.0 μm. Compared with other forms of membrane, hollow fiber has better sterilization effect.

The medium of the multimedia filter is quartz sand or anthracite.

The inner wall material of the aseptic water storage tank is PE resin. PE resin has excellent odorless, non-toxic, low temperature resistance (the lowest operating temperature can reach -100~-70°C), good chemical stability, and is a good sterile water storage material.

The ultraviolet sterilizing device is an ultraviolet lamp.

The top of the water tank is provided with a liquid level controller, and at least two horizontally installed nozzles are provided under the inner water inlet of the water tank, the countercurrent forming device is provided under the nozzles, and the countercurrent forming device is provided below the countercurrent forming device. There is said filter. The nozzle makes the incoming tap water more uniform when it passes through the countercurrent forming device, so that the effect of the countercurrent forming device is better, which in turn makes the filtering effect better, and finally makes the water purification effect better. The liquid level controller of the water tank controls the liquid level, which is convenient for filling and discharging water at any time.

The liquid level controller, the remote pressure gauge, the first lift pump, the second lift pump, the water outlet pressure sensor and the water pump are all connected to the control cabinet. Realize automation, mechanization and intelligent operation.

The inner wall of the water tank is provided with a polytetrafluoroethylene layer, and the surface of the polytetrafluoroethylene layer is also provided with a photocatalytic reaction film layer, and the material of the photocatalytic reaction film layer includes the following weight components:

Methyl acrylate: 100 parts;

Nano titanium dioxide: 6-7 parts;

Polylactic acid: 10-15 parts; safe and non-toxic, with good biocompatibility, adding to nano-titanium dioxide can increase its antibacterial property;

Chitosan: 6-8 parts; environmentally friendly antibacterial agent, which can remove heavy metals and harmful bacteria in water, and can increase the overall bactericidal effect;

Cellulose acetate: 5-7 parts; increase the photocatalytic properties and bactericidal properties of nano titanium dioxide;

Epoxypropyltrimethylammonium chloride: 10-15 parts; quaternary ammonium salt, which can react with nano-titanium dioxide to enhance photocatalytic properties, and can also be used as a phase transfer reagent to make the overall mixing of the solution more uniform;

Deionized water: 50-100 parts. The equipped polytetrafluoroethylene layer makes full use of the physical and chemical properties of polytetrafluoroethylene, which can prevent the corrosion caused by the long-term use of the water tank and prolong the service life of the water tank. , can produce photocatalytic reaction, remove harmful substances in water, and achieve the effect of water purification.

The inner wall material of the aseptic water storage tank is PE resin, and the outside of the aseptic water storage tank is provided with a PEF insulation layer. PE resin has excellent odorless, non-toxic, low temperature resistance (minimum operating temperature can reach -100~-70°C), good chemical stability, and is a good sterile water storage material; the external insulation layer , It can play the role of heat preservation and cold protection, so as to prevent the water temperature in the water storage tank from being too low when the temperature is too low in winter.

Beneficial effects: Compared with the prior art, the tap water low-temperature intelligent sterilization pipeline system provided by the present invention has the following advantages:

The tap water low-temperature intelligent sterilization pipeline system of the present invention uses an active sand filter to replace the conventional flocculation and sedimentation process, which reduces the cost, and at the same time combines the membrane technology with the ozone-activated carbon process to fully treat organic matter and heavy metals in the raw water , microorganisms, etc., to achieve advanced treatment of water quality. At the same time, the combination of membrane technology, ozone disinfection and ultraviolet disinfection can thoroughly sterilize water quality and achieve the purpose of water quality sterilization. At the same time, the control cabinet and cooling circulating water are used to achieve Low temperature intelligent operation. Through the tap water low-temperature intelligent sterilization pipeline system of the present invention, the water quality can reach and be higher than the standard of the new version of "Drinking Water Hygienic Standard" (GB5749-2006).

Description of drawings

Fig. 1 is a schematic structural view of a tap water low-temperature intelligent sterilization pipeline system provided by an embodiment of the present invention;

In the figure: 1-pressure gauge, 2-valve, 3-pre-activated carbon filter, 4-backflow preventer, 5-ozone generator, 6-water tank, 7-rear activated carbon filter, 8-remote pressure gauge , 9-first lifting pump, 10-active sand filter, 11-ferromanganese removal filter, 12-multimedia filter, 13-water softener, 14-security filter, 15-ultrafiltration equipment, 16-nano Filter equipment, 17-ultraviolet sterilizer, 18-secondary lift pump, 19-sterile water storage tank, 20-water outlet pressure sensor, 21-control cabinet, 22-liquid level controller, 23-water pump, 61-counterflow Forming device, 62-spray head, 63-filter screen, 64-ultraviolet sterilizing device, 65-cleaning sewage outlet, 66-inflatable exhaust port.

detailed description

The present invention will be described in detail below in conjunction with specific embodiments, but at the same time it is explained that the protection scope of the present invention is not limited to the specific scope of this embodiment. All other embodiments obtained below all belong to the protection scope of the present invention.

Example 1:

As shown in Figure 1:

A low-temperature intelligent sterilization pipeline system for tap water, which includes a water tank 6 and a control cabinet 21, the water tank 6 is connected to the water outlet of the raw water, and the water inlet of the water tank 6 and the water outlet of the raw water are sequentially provided with Pressure gauge 1, valve 2, front activated carbon filter 3, backflow preventer 4 and ozone generator 5, the water outlet of the water tank 6 is connected with a rear activated carbon filter 7, remote pressure gauge 8, first lifting Pump 9, active sand filter 10, iron and manganese removal filter 11, multi-media filter 12, water softener 13, security filter 14, ultrafiltration equipment 15, nanofiltration equipment 16, ultraviolet sterilizer 17, secondary lift pump 18. The water outlet pressure sensor 20 and the sterile water storage tank 19. The water tank 2 is provided with a countercurrent forming device 61 and a filter screen 63. The countercurrent forming device 61 includes two upper and lower funnel-shaped parts. A water flow channel is provided in the middle of the bottom of the upper funnel-shaped part, the bottom of the lower funnel-shaped part is sealed, and the filter screen 63 is located below the countercurrent forming device 61, and the water tank 6 is divided into upper and lower two parts. chamber, the bottom of the water tank 6 is provided with a cleaning sewage outlet 65 and an inflation outlet 66, and the left and right sides of the inner lower chamber of the water tank 6 are provided with an ultraviolet sterilizing device 64, and the outer wall of the water tank 6 is provided with a cooling Circulating water, the cooling circulating water is controlled by a water pump 23, the inner wall of the water tank 6 is provided with a polytetrafluoroethylene layer, and the surface of the polytetrafluoroethylene layer is also provided with a photocatalytic reaction film layer, and the photocatalytic reaction film The layer material consists of the following components by weight:

Methyl acrylate: 100 parts;

Nano titanium dioxide: 6 parts;

Polylactic acid: 10 parts;

Chitosan: 6 parts;

Cellulose acetate: 5 parts;

Epoxypropyltrimethylammonium chloride: 10 parts;

Deionized water: 50 parts.

The ultrafiltration membrane used in the ultrafiltration device 15 is a polysulfone hollow fiber ultrafiltration membrane with a membrane pore size of 0.02 μm. The nanofiltration membrane used in the nanofiltration device 16 is a hollow fiber nanofiltration membrane with a membrane pore size of 1.2 μm.

The medium of the multimedia filter 12 is selected from quartz sand or anthracite.

The inner wall material of the aseptic water storage tank 19 is PE resin, and the outside of the aseptic water storage tank 19 is provided with a PEF insulation layer.

The ultraviolet sterilizing device 64 is an ultraviolet lamp.

The top of the water tank 6 is provided with a liquid level controller 22, and the inner water inlet of the water tank 6 is provided with three horizontally installed nozzles 62 below the nozzles 62. The reverse flow forming device 61 is provided below the nozzle 62, and the reverse flow The filter screen 63 is provided below the forming device 61 .

The liquid level controller 22 , the remote pressure gauge 8 , the first lift pump 9 , the second lift pump 18 , the water outlet pressure sensor 20 and the water pump 23 are all connected to the control cabinet 21 .

Example 2:

As shown in Figure 1:

A low-temperature intelligent sterilization pipeline system for tap water, which includes a water tank 6 and a control cabinet 21, the water tank 6 is connected to the water outlet of the raw water, and the water inlet of the water tank 6 and the water outlet of the raw water are sequentially provided with Pressure gauge 1, valve 2, front activated carbon filter 3, backflow preventer 4 and ozone generator 5, the water outlet of the water tank 6 is connected with a rear activated carbon filter 7, remote pressure gauge 8, first lifting Pump 9, active sand filter 10, iron and manganese removal filter 11, multi-media filter 12, water softener 13, security filter 14, ultrafiltration equipment 15, nanofiltration equipment 16, ultraviolet sterilizer 17, secondary lift pump 18. The water outlet pressure sensor 20 and the sterile water storage tank 19. The water tank 2 is provided with a countercurrent forming device 61 and a filter screen 63. The countercurrent forming device 61 includes two upper and lower funnel-shaped parts. A water flow channel is provided in the middle of the bottom of the upper funnel-shaped part, the bottom of the lower funnel-shaped part is sealed, and the filter screen 63 is located below the countercurrent forming device 61, and the water tank 6 is divided into upper and lower two parts. chamber, the bottom of the water tank 6 is provided with a cleaning sewage outlet 65 and an inflation outlet 66, and the left and right sides of the inner lower chamber of the water tank 6 are provided with an ultraviolet sterilizing device 64, and the outer wall of the water tank 6 is provided with a cooling Circulating water, the cooling circulating water is controlled by a water pump 23, the inner wall of the water tank 6 is provided with a polytetrafluoroethylene layer, and the surface of the polytetrafluoroethylene layer is also provided with a photocatalytic reaction film layer, and the photocatalytic reaction film The layer material consists of the following components by weight:

Methyl acrylate: 100 parts;

Nano titanium dioxide: 6.5 parts;

Polylactic acid: 13 parts;

Chitosan: 7 parts;

Cellulose acetate: 6 parts;

Epoxypropyltrimethylammonium chloride: 13 parts;

Deionized water: 75 parts.

The ultrafiltration membrane used in the ultrafiltration device 15 is a polysulfone hollow fiber ultrafiltration membrane with a membrane pore size of 0.06 μm. The nanofiltration membrane used in the nanofiltration device 16 is a hollow fiber nanofiltration membrane with a membrane pore size of 1.6 μm.

The medium of the multimedia filter 12 is selected from quartz sand or anthracite.

The inner wall material of the aseptic water storage tank 19 is PE resin, and the outside of the aseptic water storage tank 19 is provided with a PEF insulation layer.

The ultraviolet sterilizing device 64 is an ultraviolet lamp.

The top of the water tank 6 is provided with a liquid level controller 22, and the inner water inlet of the water tank 6 is provided with three horizontally installed nozzles 62 below the nozzles 62. The reverse flow forming device 61 is provided below the nozzle 62, and the reverse flow The filter screen 63 is provided below the forming device 61 .

The liquid level controller 22 , the remote pressure gauge 8 , the first lift pump 9 , the second lift pump 18 , the water outlet pressure sensor 20 and the water pump 23 are all connected to the control cabinet 21 .

Example 3:

As shown in Figure 1:

A low-temperature intelligent sterilization pipeline system for tap water, which includes a water tank 6 and a control cabinet 21, the water tank 6 is connected to the water outlet of the raw water, and the water inlet of the water tank 6 and the water outlet of the raw water are sequentially provided with Pressure gauge 1, valve 2, front activated carbon filter 3, backflow preventer 4 and ozone generator 5, the water outlet of the water tank 6 is connected with a rear activated carbon filter 7, remote pressure gauge 8, first lifting Pump 9, active sand filter 10, iron and manganese removal filter 11, multi-media filter 12, water softener 13, security filter 14, ultrafiltration equipment 15, nanofiltration equipment 16, ultraviolet sterilizer 17, secondary lift pump 18. The water outlet pressure sensor 20 and the sterile water storage tank 19. The water tank 2 is provided with a countercurrent forming device 61 and a filter screen 63. The countercurrent forming device 61 includes two upper and lower funnel-shaped parts. A water flow channel is provided in the middle of the bottom of the upper funnel-shaped part, the bottom of the lower funnel-shaped part is sealed, and the filter screen 63 is located below the countercurrent forming device 61, and the water tank 6 is divided into upper and lower two parts. chamber, the bottom of the water tank 6 is provided with a cleaning sewage outlet 65 and an inflation outlet 66, and the left and right sides of the inner lower chamber of the water tank 6 are provided with an ultraviolet sterilizing device 64, and the outer wall of the water tank 6 is provided with a cooling Circulating water, the cooling circulating water is controlled by a water pump 23, the inner wall of the water tank 6 is provided with a polytetrafluoroethylene layer, and the surface of the polytetrafluoroethylene layer is also provided with a photocatalytic reaction film layer, and the photocatalytic reaction film The layer material consists of the following components by weight:

Methyl acrylate: 100 parts;

Nano titanium dioxide: 7 parts;

Polylactic acid: 15 parts;

Chitosan: 8 parts;

Cellulose acetate: 7 parts;

Epoxypropyltrimethylammonium chloride: 15 parts;

Deionized water: 100 parts.

The ultrafiltration membrane used in the ultrafiltration device 15 is a polysulfone hollow fiber ultrafiltration membrane with a membrane pore size of 0.1 μm.

The nanofiltration membrane used in the nanofiltration device 16 is a hollow fiber nanofiltration membrane with a membrane pore size of 2.0 μm.

The medium of the multimedia filter 12 is selected from quartz sand or anthracite.

The inner wall material of the aseptic water storage tank 19 is PE resin, and the outside of the aseptic water storage tank 19 is provided with a PEF insulation layer.

The ultraviolet sterilizing device 64 is an ultraviolet lamp.

The top of the water tank 6 is provided with a liquid level controller 22, and the inner water inlet of the water tank 6 is provided with three horizontally installed nozzles 62 below the nozzles 62. The reverse flow forming device 61 is provided below the nozzle 62, and the reverse flow The filter screen 63 is provided below the forming device 61 .

The liquid level controller 22 , the remote pressure gauge 8 , the first lift pump 9 , the second lift pump 18 , the water outlet pressure sensor 20 and the water pump 23 are all connected to the control cabinet 21 .

The specific working process of the tap water low-temperature intelligent sterilization pipeline system of the present invention is as follows:

The raw water first passes through the pre-activated carbon filter 3 for preliminary filtration, then enters the ozone generator 5 through the backflow preventer 4 for ozone reaction sterilization, and then enters the water tank 6 for filtration, sterilization and disinfection. The sterilization and disinfection in the water tank 6 is mainly the water tank The photocatalytic reaction film layer provided in the middle will undergo a photocatalytic reaction under the irradiation of the ultraviolet lamp tube, thereby sterilizing and disinfecting the water in the water tank 6, and the treated water flows out from the water tank 6, and passes through the rear activated carbon filter 7 Filter again, and then enter the active sand filter 10 under the action of the first lift pump 9 for integrated treatment of flocculation, sedimentation and filtration, and then pass through the iron and manganese removal filter 11 to remove excess iron in the water quality element and manganese; then enter the multi-media filter 12 to remove impurities, the medium in this multi-media filter 12 can be selected from quartz sand or anthracite, and then the water flows into the water softener 13 to soften the water, remove dirt in the water, reduce The hardness of water quality; then the water after softening enters in security filter 14 and carries out fine filtration, further removes the impurity in water; Then water enters in ultrafiltration equipment 15 and nanofiltration equipment 16 and carries out ultrafiltration membrane and nanofiltration membrane treatment, Carry out deep removal of microorganisms, heavy metals and other harmful substances that are difficult to remove in the water; the water after membrane treatment enters the ultraviolet sterilizer 17 for ultraviolet disinfection treatment, and thoroughly removes bacteria in the water to achieve the purpose of water sterility; The treated sterile water is successfully stored in the sterile water storage tank 19 under the lifting action of the secondary lifting pump 18 for the next step of water separation operation.

Wherein it should be explained that the flow direction of water in the water tank 6 is: the water flow enters from the water inlet of the water tank 6, and flows through the internal backflow forming device 61 under the action of the nozzle 62, and the water flow is formed by the middle gap and the edge of the upper part of the backflow forming device 61. The wall gap flows through, and the water body is divided from the whole into a flow with a slower flow rate and a smaller water volume. The purpose is to change the flow direction of the water flow with a higher flow rate in the middle. When flowing through the middle area, it is blocked by the lower part to form a reverse flow. The reverse flow and The positive flow close to the side wall is strongly mixed to achieve the effect of bidirectional flow energy dissipation. The pressure of the water flow in the water tank 6 remains stable.

Through the tap water low-temperature intelligent sterilization pipeline system of the present invention, low-temperature intelligent operation can be realized, and the water quality index of tap water after treatment can fully meet the requirements of the new standard "Drinking Water Hygienic Standard" (GB5749-2006).

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and its purpose is to enable those skilled in the technical field to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (9)

1. a running water low temperature Intelligent antibacterial pipe-line system, is characterized in that: it comprises water tank (6), switch board (21), described water tank (6) is connected with the delivery port of former water, is also provided with successively Pressure gauge (1) between the water inlet of described water tank (6) and the delivery port of former water, valve (2), pre-filter employing active carbon (3), backflow preventer (4) and ozone generator (5), the delivery port of described water tank (6) is connected with Postposition carbon filter (7) in turn, distance-transmission pressure gauge (8), the first elevator pump (9), active sand filter (10), iron-manganese removing filter (11), more medium filter (12), water softener (13), cartridge filter (14), ultrafiltration apparatus (15), nanofiltration equipment (16), ultraviolet ray disinfector (17), second lift pump (18), delivery port pressure sensor (20) and aseptic water tank (19), described water tank inside is provided with adverse current and forms device (61) and screen pack (63), and described adverse current forms device (61) and comprises on two, lower two funnel shaped parts, are provided with water stream channel in the middle of the bottom of described upper hopper shape parts, described lower funnel-shaped part sealed bottom, and described screen pack (63) is positioned at the below of described adverse current formation device (61), and described water tank (6) is divided into, lower two chambers, the bottom of described water tank (6) is provided with cleans sewage draining exit (65), inflation exhaust outlet (66), the left and right sides of the inner lower chambers of described water tank (6) is provided with ultraviolet sterilization apparatus (64), and the outer wall of described water tank (6) is connected with cooling circulating water, and described cooling circulating water is controlled by water pump (23),

The inwall of described water tank (6) is provided with polytetrafluoroethylene floor, and described polytetrafluoroethylene floor surface is also provided with light-catalyzed reaction rete, and the material of described light-catalyzed reaction rete comprises following components by weight percent:

Methyl acrylate: 100 parts; Nano titanium oxide: 6-7 part; PLA: 10-15 part; Shitosan: 6-8 part; Cellulose acetate: 5-7 part; Epoxypropyltrimethylchloride chloride: 10-15 part; Deionized water: 50-100 part.

2. running water low temperature Intelligent antibacterial pipe-line system according to claim 1, is characterized in that: the milipore filter that described ultrafiltration apparatus (15) adopts is that membrane aperture is the polysulfone hollow fibre milipore filter of 0.02-0.1 μ m.

3. running water low temperature Intelligent antibacterial pipe-line system according to claim 1, is characterized in that: the NF membrane that described nanofiltration equipment (16) adopts is the hollow fiber nanofiltration membrane of membrane aperture 1.2-2.0 μ m.

4. running water low temperature Intelligent antibacterial pipe-line system according to claim 1, is characterized in that: the medium of described more medium filter (12) is selected quartz sand or anthracite.

5. running water low temperature Intelligent antibacterial pipe-line system according to claim 1, is characterized in that: the inner-wall material of described aseptic water tank is PE resin.

6. running water low temperature Intelligent antibacterial pipe-line system according to claim 1, is characterized in that: described ultraviolet sterilization apparatus (64) is quartz burner.

7. running water low temperature Intelligent antibacterial pipe-line system according to claim 1, it is characterized in that: the top of described water tank (6) is provided with fluid level controller (22), the inner inlet mouth below of described water tank (6) is provided with the shower nozzle (62) that at least two levels are installed, described shower nozzle (62) below is provided with described adverse current and forms device (61), and the below that described adverse current forms device (61) is provided with described screen pack (63).

8. running water low temperature Intelligent antibacterial pipe-line system according to claim 7, is characterized in that: described fluid level controller (22), distance-transmission pressure gauge (8), the first elevator pump (9), second lift pump (18), delivery port pressure sensor (20), water pump (23) are all connected with described switch board (21).

9. running water low temperature Intelligent antibacterial pipe-line system according to claim 1, is characterized in that: described aseptic water tank (19) inner-wall material is PE resin, and the outside of described aseptic water tank (19) is provided with PEF heat-insulation layer.