CN206751574U - A kind of medicinal purified water processing system - Google Patents

Abstract

The utility model discloses a medicinal purified water treatment system, which comprises a raw water tank, a softening device, a bag filter, an ultrafiltration system, a first-stage RO system, an EDI system and a purified water tank which are sequentially connected. The water outlet is connected to the tap water pipe, the water outlet of the raw water tank is connected to the water inlet of the softening device, the water outlet of the softening device is connected to the water inlet of the bag filter, the water outlet of the bag filter is connected to the water inlet of the ultrafiltration system, and the water outlet of the ultrafiltration system The water outlet is connected to the water inlet of the first-stage RO system, the water outlet of the first-stage RO system is connected to the water inlet of the EDI system, and the water outlet of the EDI system is connected to the water inlet of the purified water tank. The operating cost is reduced and the utilization rate of raw water is improved. Better removal of organic matter, colloids, bacteria and other suspended fine particle impurities in raw water improves the quality of filtration and makes the purification more thorough, and the bag filter can be used repeatedly, reducing costs and using less chemicals. Pollution is reduced.

Description

A medicinal purified water treatment system

technical field

The utility model relates to the technical field of sewage treatment, in particular to a medicinal purified water treatment system.

Background technique

With the development of society, people have higher and higher requirements for water sanitation, especially for the quality and output of medicinal water. However, the existing water treatment technology mainly removes the salt and most of the dissolved solids, colloidal silicon and organic matter in the raw water, which cannot fully meet the standards of the "Chinese Pharmacopoeia 2015 Edition". Moreover, the water quality produced by the prior art is unstable, the service life of the equipment is low, the cost is high, and even pollution may occur.

Therefore, prior art also needs further improvement and development.

Utility model content

The purpose of this utility model is to provide a medicinal purified water treatment system, aiming to solve the problems of incomplete water purification, unstable water quality, low service life of equipment, high cost and pollution.

The technical solutions adopted are:

A pharmaceutical purified water treatment system, including a raw water tank, a softening device, a bag filter, an ultrafiltration system, a primary RO system, an EDI system and a purified water tank connected in sequence, wherein the water inlet of the raw water tank is connected to a tap water pipe, The water outlet of the raw water tank is connected to the water inlet of the softening device, the water outlet of the softening device is connected to the water inlet of the bag filter, the water outlet of the bag filter is connected to the water inlet of the ultrafiltration system, and the water outlet of the ultrafiltration system is connected to the first stage The water inlet of the RO system, the water outlet of the primary RO system is connected to the water inlet of the EDI system, and the water outlet of the EDI system is connected to the water inlet of the purified water tank.

A raw water pump is arranged on the connecting pipeline between the raw water tank and the softening device.

An ultrafiltration water tank is arranged between the ultrafiltration system and the primary RO system, the water outlet of the ultrafiltration system is connected to the water inlet of the ultrafiltration water tank, and the water outlet of the ultrafiltration water tank is connected to the water inlet of the primary RO system.

A high-pressure pump is arranged on the connecting pipeline between the ultrafiltration water tank and the primary RO system.

There is a backwash pipeline between the ultrafiltration water tank and the ultrafiltration system, the primary RO system and the EDI system, and a backwash water pump is installed on the backwash pipeline.

A disinfection system is connected between the ultrafiltration system and the ultrafiltration water tank.

The disinfection system includes an ultraviolet sterilizer, an ozone generator and a microporous filter device connected in sequence.

Beneficial effects: the utility model provides a new type of medicinal purified water treatment system. The first-stage RO system improves the service life of the equipment, reduces the operating cost, and improves the utilization rate of raw water. The raw water passes through the raw water tank, softening device, bag filter, ultrafiltration system, primary RO system and purified water tank to better remove organic matter, colloids, bacteria and other suspended fine particle impurities in the raw water, improving the quality of filtration , so that the purification is more thorough, and the bag filter can be used repeatedly, which reduces the cost, the amount of chemical agents is less, and the pollution is reduced.

Description of drawings

Fig. 1 is a schematic structural view of a medicinal purified water treatment system in a specific embodiment of the present invention.

detailed description

In order to make the purpose, technical solution and advantages of the utility model more clear and definite, the utility model will be further described in detail below with reference to the accompanying drawings and examples.

A pharmaceutical purified water treatment system as shown in Figure 1, including a raw water tank 100, a softening device 200, a bag filter 300, an ultrafiltration system 400, a primary RO system 500, an EDI system 600 and a purified water tank connected in sequence 700, wherein the water inlet of the raw water tank 100 is connected to the tap water pipe, the water outlet of the raw water tank 100 is connected to the water inlet of the softening device 200, the water outlet of the softening device 200 is connected to the water inlet of the bag filter 300, and the water outlet of the bag filter 300 The water outlet is connected to the water inlet of the ultrafiltration system 400, the water outlet of the ultrafiltration system 400 is connected to the water inlet of the primary RO system 500, the water outlet of the primary RO system 500 is connected to the water inlet of the EDI system 600, and the water outlet of the EDI system 600 Connect the water inlet of the purified water tank.

A raw water pump 800 is provided on the connecting pipeline between the raw water tank 100 and the softening device 200 . The raw water tank 100 is used to store the raw water entering the system. Its purpose is to adjust the change of the incoming water flow, play the role of buffering and adjusting the water volume, ensure the safe and stable operation of the raw water pump 800, and achieve the same level as the water pump through the liquid level control system. The purpose of chain control. The water intake of the raw water tank 100 is controlled by an automatic valve, which automatically enters water according to the liquid level of the raw water tank 100 to ensure normal water supply and to ensure the safe and stable operation of the system. When the liquid level of the raw water tank 100 is low, the raw water pump 800 stops running automatically. The raw water tank 100 is made of stainless steel, and is equipped with relevant emptying valves and the like. The raw water pump 800 provides the power transmission for the bag filter 300 and the ultrafiltration system 400, in order to effectively protect the ultrafiltration system 400 from the impact of water hammer and save electricity consumption during operation.

The softening device 200 includes a softening tank 210 and a brine tank 220 , and the softening operation process is: running, backwashing, salt absorption, slow washing, brine tank replenishment, and forward washing.

Bag filter 300 is a pressure filter device, mainly composed of filter cylinder, filter cylinder cover, quick opening mechanism, stainless steel filter bag reinforcement net and other main components. The filtrate flows into the filter bag from the side inlet pipe of the filter shell , The filter bag itself is installed in the reinforced mesh basket, the liquid penetrates through the filter bag of the required fineness level to obtain qualified filtrate, and the impurity particles are intercepted by the filter bag. The filter bag is easy to replace, there is basically no material consumption for filtering, and the chance of side leakage of the filter bag is small, which ensures the filtration quality, and can be used repeatedly after cleaning, saving costs.

Ultrafiltration (UF) is the most advanced pretreatment filtration technology today. It utilizes the fine pore size of the hollow fiber ultrafiltration membrane made of polyacrylonitrile, polyethersulfone, polysulfone and other materials to filter, remove and separate effective pollutants in water. Particles with a diameter of 0.005-0.1 microns and impurities with a molecular weight in the range of 5,000-150,000 Daltons are widely used in the removal of organic matter, colloids, bacteria, and other suspended fine particle impurities in surface water, seawater, and wastewater. However, the traditional pretreatment process of quartz sand filtration can only remove impurities with a particle size of 5um or more due to the influence of its filtration accuracy, but it cannot remove the most harmful substances such as particles, colloids, and bacteria between 0.1-5um. The traditional pretreatment process has high requirements on operation and requires frequent backwashing to ensure its filtration performance. Once the operation is negligent or the operator does not follow the process, the quality of the filtered water will deteriorate, which will cause problems in the subsequent process. Ultrafiltration system 400 microorganisms, bacteria, E. coli, pathogens (removal rate)>99.99%, suspended solids removal rate: 100%, water quality: turbidity≤0.2NTU SDI≤3, operating temperature: 5-45℃, working Pressure: ≤0.2MPa. The ultrafiltration system 400 does not need continuous dosing, and the dosage of medicine is small, which reduces pollution emissions. High stability, high output, good water purification effect, high degree of automation and convenient operation.

The primary RO system 500 uses a certain pressure to separate the solvent in the solution through a reverse osmosis membrane (or semi-permeable membrane). According to the different osmotic pressures of various materials, the reverse osmosis method greater than the osmotic pressure can achieve the purpose of separation, extraction, purification and concentration. The pretreated water enters the reverse osmosis membrane group. Under the action of pressure, most of the water molecules and traces of other ions pass through the reverse osmosis membrane and become product water after collection, which enters the subsequent equipment through the water outlet; most of the salt and colloid in the water , organic matter, etc. cannot pass through the reverse osmosis membrane, and remain in a small amount of concentrated water, which is discharged from the drain pipe. When the primary RO system 500 is out of operation, it is automatically flushed for 2-5 minutes to remove the dirt deposited on the membrane surface, so that the primary RO system 500 can be effectively maintained.

EDI system 600, operating conditions are:

Water supply: RO pure water, the conductivity of general water is 4-30us/cm;

PH: 5.0-8.0 (under this PH condition, the water hardness should not be too high);

Temperature: 5-35°C;

Water inlet pressure: the maximum is 4kg/cm2 (60psi), the minimum is 1.5kg/cm2 (25psi).

It will not produce acid and alkali, can be produced continuously, has simple structure design, low operating cost and stable water quality.

The purified water tank is used as the water storage tank for the system to produce water, mainly to meet the buffering and storage of water for each subsequent section. The water tank is equipped with a liquid level control system, which is linked with each water pump and system to achieve the function of protecting the system. At the same time, the selection of the purified water tank should take full account of the effective volume to meet the buffer water volume for the continuous operation of the system, and minimize the impact of air or other pollutants on the water caused by the increase in the space of the purified water tank. The purified water tank is made of stainless steel, and liquid level switches are installed to display high, medium and low water levels and implement corresponding interlocking and liquid level alarm devices. The volume of the purified water tank is 2.0m ³ .

An ultrafiltration water tank 410 is arranged between the ultrafiltration system 400 and the primary RO system 500, the water outlet of the ultrafiltration system 400 is connected to the water inlet of the ultrafiltration water tank 410, and the water outlet of the ultrafiltration water tank 410 is connected to the inlet of the primary RO system 500. Shuikou. A high-pressure pump 411 is provided on the connecting pipeline between the ultrafiltration water tank 410 and the primary RO system 500 . The high-pressure pump 411 provides sufficient water inlet pressure for the reverse osmosis membrane group to maintain the normal operation of the reverse osmosis membrane. A backwash pipeline is provided between the ultrafiltration water tank 410 and the ultrafiltration system 400 , the primary RO system 500 and the EDI system 600 , and a backwash water pump 412 is provided on the backwash pipeline.

A disinfection system 700 is connected between the ultrafiltration system 400 and the ultrafiltration water tank 410, which includes an ultraviolet sterilizer, an ozone generator, and a microporous filtration device connected in sequence.

It should be understood that the application of the present utility model is not limited to the above examples, and those skilled in the art can improve or change according to the above description, and all these improvements and changes should belong to the protection of the appended claims of the present utility model scope.

Claims (7)

1. a kind of medicinal purified water processing system, it is characterised in that including the raw water box, softening plant, pocket type mistake being sequentially connected Filter, ultrafiltration system, one-level RO systems, EDI systems and purifying water tank, wherein, the water inlet of raw water box connects running water pipe, raw water The water inlet of the delivery port connection softening plant of case, the water inlet of the delivery port connection bag filter of softening plant, pocket type mistake The water inlet of the delivery port connection ultrafiltration system of filter, the water inlet of the delivery port connection one-level RO systems of ultrafiltration system, one-level The water inlet of the delivery port connection EDI systems of RO systems, the water inlet of the delivery port connection purifying water tank of EDI systems.

2. medicinal purified water processing system according to claim 1, it is characterised in that the raw water box and softening plant it Between connecting line on be provided with raw water pump.

3. medicinal purified water processing system according to claim 1, it is characterised in that the ultrafiltration system and one-level RO systems Ultrafiltration water tank, the water inlet of the delivery port connection ultrafiltration water tank of ultrafiltration system are provided between system, the delivery port of ultrafiltration water tank connects Connect the water inlet of one-level RO systems.

4. medicinal purified water processing system according to claim 3, it is characterised in that the ultrafiltration water tank and one-level RO systems High-pressure pump is provided with connecting line between system.

5. medicinal purified water processing system according to claim 3, it is characterised in that the ultrafiltration water tank and ultrafiltration system Backwash pipeline is provided between system, one-level RO systems and EDI systems, backwash water pump is provided with backwash pipeline.

6. medicinal purified water processing system according to claim 1, it is characterised in that the ultrafiltration system and ultrafiltration water tank Between connect decontamination system.

7. medicinal purified water processing system according to claim 6, it is characterised in that the decontamination system includes connecting successively Ultraviolet sterilization device, ozone generator and the microporous filter connect.