CN201254499Y - Central type drinking water purification system - Google Patents

Abstract

Disclosed is a central type drinking water purification system, and the part which are connected by a purification water pipeline thereof comprises a water purifying unit and a water purifying tank connected with the water purifying unit, a soft water unit and a purification water unit connected with the soft water unit, and a purified water tank connected with the purification water unit. A second control valve is arranged between the water purifying unit and the water purifying tank; a purified water pressure convey pump is arranged between the soft water unit and the purification water tank, and a third control valve is arranged between the purification water unit and the soft water unit; a fourth control valve is arranged between the purified water tank and the purification water unit, and a purified water convey pump is also connected with the purified water tank; and the water purifying unit, the soft water unit, the second control valve, the third control valve and the fourth control valve are all connected on a control system. The central type drinking water purification system can supply water with various quality, such as the purified water, the soft water, the direct drinking water, the pure water and the like; the installation and use is convenient; and the comprehensive water resources utilization efficiency can reach 80% to 90%.

Description

Central drinking water purification system

technical field

The utility model relates to a central drinking water purification system. The central drinking water purification system adopts a central control system to realize automatic control and operation.

Background technique

With the increasingly serious environmental pollution and the continuous improvement of people's pursuit of healthy and comfortable quality of life, the current use of drinking water hygiene, safety, health and comfort has become increasingly prominent, especially for those who focus on quality of life and life health families, as well as many offices, schools, businesses, factories and other places, urgently need special water treatment equipment for secondary purification of municipal tap water and other domestic drinking water to improve the hygiene, health and comfort of drinking water . The existing municipal tap water in my country has problems such as the decline of water source water quality, outdated purification process of water plants, aging of tap water transmission pipe network, secondary water supply pollution, etc., resulting in generally unsatisfactory water quality of tap water terminals, high content of organic pollutants, and excessive heavy metal content , high content of chlorine-containing disinfectants and their by-products, occasional detection of endocrine disruptors, obvious content of mutation-inducing substances, high chroma and turbidity, uneven water hardness and other problems are very prominent.

In order to solve various water quality problems, domestic and commercial drinking water treatment equipment has emerged as the times require. However, the ordinary water purifiers currently on the market can only meet the needs of a small number of people for direct drinking, and due to the one-sided pursuit of low cost and low price, there are often simple or one-sided technology, low equipment processing capacity, and inconvenient installation and use. series of questions. The scientific requirements of healthy and hygienic drinking water (direct drinking, diet, making tea, etc.), comfortable and reasonable water (bathing, washing, cleaning, etc.) have not been achieved.

Existing products often have the following major deficiencies (products of different categories often have different aspects in the following problems):

1. The water supply flow rate is small, which can only meet the most basic direct drinking water, such as the common household RO pure water machine.

2. One-sided or insufficient purification performance: Physical filtration water purification equipment such as ultrafiltration, microfiltration, and precision filtration can only remove particulate matter and impurities and iron visible to the naked eye, while organic pollution dissolved in water substances, heavy metals, disinfectants, disinfectant by-products, etc. are completely ineffective; another example is the central water purifier mainly based on adsorption filtration. At the same time, it can fully retain trace elements and minerals, but it cannot reduce the excessively high water hardness, and it is powerless to solve problems such as excessively high TDS caused by fluorinated water and seawater intrusion; another example is water softening equipment, although it can completely reduce water quality. Hardness greatly improves the water comfort of bathing, laundry, washing and cleaning, but it cannot remove organic pollutants and disinfectants.

3. The waste of water resources is obvious. Especially for products represented by RO pure water machines, the utilization efficiency of water resources is very low, and often only 15-30% of the water can be used, and the rest is discharged into the sewer and wasted in vain.

4. The function of the system is single, and users cannot choose different suitable water quality according to different aspects of domestic water. Although it is also possible to purchase multiple water treatment products with different functions to meet different needs, this will not only lead to high procurement costs, but also cause many inconveniences in use and maintenance because the system cannot be integrated.

Utility model content

The technical problem to be solved by the utility model is to provide a central drinking water purification system in order to overcome many defects in the prior art, such as the single function of the system.

The utility model solves the problems of the technologies described above through the following technical solutions:

A central drinking water purification system is characterized in that the parts connected by the clean water pipeline include:

A clean water unit and a clean water tank connected to it, a second control valve is arranged between the two;

A soft water unit and a purified water unit connected thereto, a purified water booster delivery pump is arranged between the softened water unit and the purified water tank, a third control valve is provided between the purified water unit and the softened water unit;

A purified water tank connected to the purified water unit, a fourth control valve is arranged between the two, and a purified water delivery pump is also connected to the purified water tank;

The water purification unit, the soft water unit, the second control valve, the third control valve and the fourth control valve are all connected to a control system through control lines.

Wherein, the clean water booster delivery pump, soft water unit, purified water unit and purified water delivery pump are respectively connected with clean water interface, soft water interface, direct drinking water interface and pure water interface; The drinking water interface and the pure water interface are respectively equipped with a flow sensor for the purified water interface, a flow sensor for the soft water interface, a flow sensor for the direct drinking water interface and a flow sensor for the purified water interface; the above four sensors are connected to the control system through the control line.

Wherein, the purified water unit is also connected to the purified water tank through a water return pipeline.

Wherein, the central drinking water purification system also includes a pre-filter unit connected to the water purification unit, the pre-filter unit is connected with a first control valve and a raw water interface, and the pre-filter unit is also connected to the control unit through a control line. system connection.

Wherein, the pre-filter unit, the water purification unit and the soft water unit are all connected with sewage outlets.

Wherein, a precision filter unit is also provided between the soft water unit and the purified water unit, and a sterilizer is provided between the purified water unit and the purified water tank.

Wherein, the clean water tank and the purified water tank are provided with three-point liquid level controllers, which are connected with the control system through control lines.

Wherein, several water purification units are also connected in parallel in the water purification unit,

Wherein, each of the control valves is one or more of solenoid valves, electric or pneumatic electric valves.

The positive progressive effect of the present utility model is:

1. Adopt pre-filtration, adsorption purification, ion exchange softening, precision filtration, purification, disinfection and purification and other treatment processes.

2. It can provide water supply of different water quality such as purified water, softened water, direct drinking water and pure water.

3. The system is fully automatic control, modular integrated design, according to the user's requirements, part of the water purification process can be used (such as canceling the soft water unit), and the number of equipment units in each process link can also be increased or decreased according to requirements (such as the water purification unit Then add a water purification unit in parallel), the system will eventually be synthesized into an integrated overall device, which is very convenient to install and use.

4. The utilization rate of water resources is high. Due to the adoption of the concentrated water backflow process, there is no waste water discharge during the normal operation of the equipment, and the sewage discharge process is only in the occasional self-cleaning and regeneration process of pre-filtration, water purification, and soft water units. , will appear for a short time. The comprehensive water resource utilization efficiency of the system can reach 80-90%.

Description of drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.

Detailed ways

A preferred embodiment is given below, and the utility model is described more clearly and completely in conjunction with the accompanying drawings.

As shown in Figure 1. The equipment structure of the whole system is that the whole system and pipeline are integrated by a metal bracket. Various units and pipelines are fixed on this bracket, and only a few equipment can be set aside, such as raw water interface, purified water interface, soft water interface, direct drinking water interface, purified water interface, etc.

1. Overall structure and composition

On the whole, the entire central drinking water purification system is connected through four routes, forming a fully automatic control and modular integrated design. These four pipelines are control pipeline 101 , water purification pipeline 102 , sewage pipeline 103 and control circuit 104 . Wherein, the route of water flow is the water purification pipeline 102, which will be described first.

First, in order from left to right in Figure 1, the parts connected by the water purification pipeline 102 include:

The pre-filter unit 1 is connected with a first control valve 11 and a raw water interface 12 on the pre-filter unit 1; the water purification unit 2 and the clean water tank 3 connected thereto have a second control valve 21 between them; soft water Unit 4 and the purified water unit 6 connected thereto, a purified water booster delivery pump 31 and purified water interface 32 are arranged between the softened water unit 4 and the purified water tank 3, and the purified water unit 6 and the purified water unit 4 A third control valve 41 and precision filter unit 5 are provided, and a soft water interface 42; a purified water tank 7 connected with the purified water unit 6, a fourth control valve 71 and direct drinking water interface 62 are provided between the two, and A sterilizer 61 , the purified water tank 7 is also connected with a purified water delivery pump 72 and a purified water interface 73 .

Next, the other three types of line connections are described.

The water purification unit 2 , the soft water unit 4 , the first control valve 11 , the second control valve 21 , the third control valve 41 and the fourth control valve 71 are all connected to the control system 8 through the control line 101 . The purified water unit 6 is also connected to the purified water tank 3 through a water return pipeline 104 . Both the pre-filter unit 1 and the water purification unit 2 are connected with a sewage pipeline 103 . The clean water tank 3 and the purified water tank 7 are provided with three-point liquid level controllers, which are connected to the control system 8 through a control line 101 .

Afterwards, the flow sensors installed at the respective ports, which are used to open and close the control valve 4, are explained.

Clean water interface 32, soft water interface 42, direct drinking water interface 62 and pure water interface 73 are respectively equipped with purified water interface flow sensor, soft water interface flow sensor, direct drinking water interface flow sensor and purified water interface flow sensor; the above four sensors All are connected to the control system 8 through the control line 101.

Finally, in order to achieve a better operating effect of the system, several water purification units can also be added in parallel in the water purification unit 2, and each control valve is one or more of solenoid valves, electric or pneumatic electric valves.

2. Process description of each main component

The pre-filter unit 1 is designed for some raw water with poor water quality. Mechanical filtration methods such as sand filter and multi-media filter can be used to remove large particles and suspended matter in the water, and appropriately reduce the turbidity and iron and manganese content of the water. . If the water quality basically meets the basic drinking water quality requirements, the pre-filter unit can be canceled. After the unit is used continuously for a period of time (such as once a week or once every 10 days), it is necessary to flush the filter material inside the equipment to discharge the pollutants and impurities trapped by the equipment and restore the filtration performance of the equipment.

The water purification unit 2 is used to significantly reduce the content of chlorine-containing disinfectants, organic pollutants, heavy metals, etc., and significantly improve the color, turbidity, odor and other indicators of water. For example, a central water purifier with the KDF-activated carbon water purification process as the core can be used, which is a commercially available product. After the unit is used continuously for a period of time (such as once a week or once every 10 days), it is necessary to flush the filter material inside the equipment to discharge the pollutants and impurities trapped by the equipment and restore the purification performance of the equipment. After the equipment is used for 1-2 years, the filter material needs to be replaced.

The purified water tank 3 stores the purified water purified from the purified water unit 2 and concentrated water returned from the purified water unit 6, the water in which can directly provide users with a large flow of purified water, and is also the raw water for subsequent water treatment units.

The clean water booster delivery pump 31 increases the water supply pressure to the water in the clean water tank 3, supplies clean water to the user's common clean water water points (such as general kitchen washing, cleaning of sanitary ware, watering flowers and fish, etc.), and for Clean water enters subsequent processing units to provide sufficient water supply pressure.

The water softening unit 4 is used to remove hardness ions such as calcium and magnesium in water, reduce water hardness, and provide for bathing, laundry, cleaning, etc. in homes or similar places, and also provide better performance guarantee for subsequent purification units. Generally, a cation exchange resin type water softener can be used. After the unit has been used continuously for a period of time (it can be determined according to the amount of water produced and the quality of raw water, usually once every 7-14 days), the ion exchange resin inside the equipment needs to be regenerated to restore the softening performance of the equipment. The regeneration process consists of The system completes automatically.

The precision filter unit 5 is used to remove small particulate matter and suspended solids, protect the purified water unit components, and improve its performance and service life. For example, a PPF filter with a precision of 1um can be used, and multiple identical filter elements can be used in parallel. The filter element needs to be replaced every 6-12 months.

Purified water unit 6 is used to completely remove any residual organic matter, heavy metals, carcinogenic, teratogenic and mutagenic substances, as well as viruses, bacteria, sanitary objects, etc., and reduce the content of minerals, salt, and hardness ions in the water to a considerable extent, and obtain relatively pure purified water. The taste is sweet, which meets people's taste requirements for drinking water and perfect hygiene requirements (but it only contains a small amount of minerals and trace elements, so it is not recommended to simply drink this water for a long time). The unit can use reverse osmosis (RO) or nanofiltration (NF) water purification process. However, after a period of use (usually 1-2 years), the filter element needs to be replaced.

The sterilization and disinfection unit (sterilizer 61 ) completely kills the viruses, bacteria or microorganisms remaining or multiplying in the equipment and pipelines. Thoroughly guarantee the drinking water safety of direct drinking water, and extend the water quality guarantee period of the purified water tank.

Purified water tank 7 stores purified water.

The purified water delivery pump 72 is used to deliver the purified water with a large flow rate to the place where a large flow rate of purified water is needed.

Three. Briefly introduce the basic operation principle of the utility model

The water entering through the raw water interface, after pre-filtration, adsorption purification, softening, precision filtration, purification, disinfection and purification, etc., can provide purified water and soft water through the clean water interface, soft water interface, direct drinking water interface and pure water interface. , direct drinking water, pure water and other water supply of different water quality.

Among them, the concentrated water backflow process is also adopted, so that there is no waste water discharge during the normal operation of the equipment, and the sewage discharge process will only occur for a short time during the occasional pre-filtration, water purification, and self-cleaning and regeneration of the equipment in the soft water unit. .

Sensors are also installed at each interface. When the sensor senses the water flow, or when the water flow stops, the water flow is controlled by opening or closing the control valve, locking or unlocking the operation of the pump.

Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that these are only examples, and various modifications can be made to these embodiments without departing from the principle and essence of the present utility model. change or modification. Therefore, the protection scope of the present utility model is defined by the appended claims.

Claims (9)

1, a kind of central type drinking water purification system is characterized in that, it is comprised by the part that water pipeline connects:

One water purification unit and connected clear water tank, this is provided with one second control valve between the two;

One soft water unit and connected purified water unit are provided with a water purification pressurizing delivery pump between this soft water unit and this clear water tank, be provided with one the 3rd control valve between this purified water unit and this soft water unit;

The one purifying water tank that is connected with this purified water unit, this is provided with one the 4th control valve between the two, and this purifying water tank also is connected with a purified water transferpump;

This water purification unit, soft water unit, second control valve, the 3rd control valve and the 4th control valve all are connected on the Controlling System by control circuit.

2, central type drinking water purification system as claimed in claim 1 is characterized in that, on this water purification pressurizing delivery pump, soft water unit, purified water unit and the purified water transferpump, is connected with water purification interface, soft water interface, direct-drinking water interface and pure water interface respectively; This water purification interface, soft water interface, direct-drinking water interface and pure water interface position are separately installed with water purification interface flow transmitter, soft water interface flow transmitter, direct-drinking water interface flow transmitter and purified water interface flow transmitter; Above-mentioned four transmitters all are connected on the Controlling System by control circuit.

3, central type drinking water purification system as claimed in claim 1 is characterized in that, this purified water unit also is connected on the clear water tank by a water return pipeline.

4, central type drinking water purification system as claimed in claim 1, it is characterized in that, this central type drinking water purification system also comprises a pre-filtration units that is connected with this water purification unit, be connected with one first control valve and a former water interface on this pre-filtration units, this pre-filtration units also is connected with Controlling System by a control circuit.

5, central type drinking water purification system as claimed in claim 1 is characterized in that, this pre-filtration units, water purification unit and soft water unit all are connected with sewage draining exit.

6, central type drinking water purification system as claimed in claim 1 is characterized in that, also is provided with a secondary filter unit between this soft water unit and this purified water unit, is provided with a sterilizer between this purified water unit and the purifying water tank.

7, central type drinking water purification system as claimed in claim 1 is characterized in that, is provided with high, normal, basic 3 fluid level controllers in this clear water tank and the purifying water tank, and this fluid level controller is connected with this Controlling System by control circuit.

8, central type drinking water purification system as claimed in claim 1 is characterized in that, in this water purification unit several water purification unit that increase also in parallel,

As the described central type drinking water purification system of above arbitrary claim, it is characterized in that 9, described each control valve is one or several in magnetic valve, the electronic or air operated motorized valve.

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