Chlorine dioxide sterilizer

1. Product features and main uses

This product has significant features such as advanced technology, easy operation, simple maintenance, low operating costs, and long service life. Its comprehensive performance ranks among the leading levels in China. This device is widely used for disinfection of drinking water, swimming pool water, and hospital sewage; Industrial circulating cooling water for sterilization and algae removal; Industrial wastewater decolorization, deodorization, and removal of reducing pollutants.

2. Composition and representative significance of specifications and models

The specifications of the generator are based on the effective chlorine production per hour of the equipment（Divided by g/h, for example: * * -1000 refers to the Qi Li economic series products, with a rated effective chlorine production of 1000 grams per hour.

3. Operating environment and working conditions

Location: Indoor (well ventilated)

Water source: pipe diameterDN≥25， Water pressure: 0.2-0.4MPa, flow rate Q ≥ 2 cubic meters/hour.

Equipped with power supply:AC220V、50HZ； Power ≥ 1KW

Schematic diagram of chlorine dioxide generator equipment (see section)3 pages)

2、 Structure and working principle

（1） Overall structure and working principle:

Overall structure: The generator consists of a feeding system, a reaction system, an absorption system, and a safety system. The generator casing isPVC material.

Working principle: Sodium chlorate aqueous solution and hydrochloric acid solution enter the reaction chamber through the feeding tube and drip valve under negative pressure conditions from the raw material box, undergo sufficient reaction, and produce disinfectant gas mainly composed of chlorine dioxide. After being absorbed by the water injector and fully mixed with water to form disinfectant, it is introduced into the disinfected water body.

（2） Schematic diagram and description of each component of the equipment (see page 3):

Serial number, component name, function

The liquid level gauge displays the liquid level in the raw material tank

Adjust the amount of raw material added by adding 2 drops of valve

3. Open or close the raw material feeding valve, and use it when starting or stopping the machine

4 suction tubes for adding sodium chlorate solution and hydrochloric acid solution

The 5-connected valve opens when the raw material box is suctioned, and closes after the suction is completed

6. The exhaust valve is closed when the raw material box is suctioned, and opened after the suction is completed

7-outlet one-way valve chlorine dioxide outlet and prevention of water backflow into the equipment

The 8 outlet valves are only closed when the raw material box is sucking material

9. Discharge residual liquid from the reactor during cleaning of the drain valve

10 discharge valve to clear the raw materials in the raw material box

Specific pressure relief pathways for improper operation of safety valve equipment

12 water inlet heating water tank water inlet

13 Drainage outlet Heating water tank drainage outlet

14 Heating Window

15. Air channel during operation of air intake equipment

（3） Main component functions and working principles

1. Water injectorA water jet is a type of air extraction component designed based on the principle of jet flow. When the power water passes through the water jet, negative pressure is generated inside, and external gas is sucked into the water jet under the pressure difference, thus achieving suction. The inhaled chlorine dioxide mixes with water here to form a disinfectant.

2. Drip valveAdjust the dosage of raw materials according to the required amount of chlorine dioxide.

3. Air inletThe channel for equipment operation can be connected to pipelines and opened to the outside during installation, while maintaining communication with the atmosphere.

4. Safety valveSpecific pressure relief pathways for improper operation of equipment. After the safety valve is opened, the fault should be eliminated first, and then the safety valve plug should be reset.

3、 Equipment installation

（1） Installation conditions

1. The equipment should be installed indoors, avoiding direct sunlight, and the working environment temperature requirement for the equipment is 5 ℃ -40 ℃.

2. Due to the strong corrosiveness of chlorine dioxide, it should be avoided to place the equipment in the same room as other electrical equipment when selecting the installation location. A separate equipment room should be set up.

3. The ground between equipment should be paved with cement and equipped with a flushing water source and drainage system.

4. The equipment room should have good ventilation. As chlorine dioxide gas has a higher density than air, a ventilation fan should be installed at the bottom of the wall.

5. The equipment should be equipped with a pressure water source, with a supply pipe diameter of DN ≥ 25 and a pressure of 0.2MPa-0.4MPa.

6. There should be necessary lighting facilities and a 220V, 5A single-phase three hole power socket between the devices.

（2） Security procedures and precautions

1. Installation Program

（1) Determine the disinfectant injection point, water sprayer, and equipment installation location.

（2) Install the water injector and connect the pipeline to the injection point.

（3) Place the device in the appropriate position and connect the water injector inlet to the device outlet.

（4) Install other components of the equipment and check for any air leaks at each interface.

2. Installation precautions

(1) Installation of water injector:

The water injector should generally be fixed on the wall behind the equipment, and its position and height should be staggered from the generator for easy maintenance and operation. The water injector can be installed horizontally or vertically (see installation diagram), and movable joints should be installed at the front and rear of the water injector for easy disassembly and cleaning. A pressure gauge and regulating valve (to be provided by the user) should be installed in front of the water injector.

(2) Installation of equipment:

The installation location of the equipment should generally be chosen to be close to the water source and easy to operate. During installation, attention should be paid to leaving a certain amount of maintenance space for easy maintenance.

For components that have already been installed at the factory, they should be rechecked after opening the box, and loose components should be tightened.

Connect the suction hose to the raw material box.

It is best to use a hard connection between the water injector and the equipment outletPVC pipes can also be connected using flexible hoses.

The inlet pipe of the generator should be connected to an outdoor ventilation area, and the air must be kept unobstructed.

4、 Usage and Operating Procedures

（1） Preparation and inspection before use

1. Precautions to be checked before use

（1) Open the power water valve, adjust the water pressure to 0.3MPa, and check if the water pressure is stable.

（2) Check if all components of the equipment are functioning properly and if there are any leaks.

（3) Check whether the position of each valve switch is accurate.

（4) Check if the safety valve has been reset.

（5) Fill the heating water jacket with water from the water inlet.

（6) Turn on the power switch of the generator and observe if the generator display is normal.

2. Preparation before use:

Preparation and addition of raw materials:

（1) Preparation of sodium chlorate solution: Mix sodium chlorate with water in a ratio of 1:2 (weight ratio), for example: 1 kilogram of sodium chlorate with 2 kilograms of water, stir until completely dissolved.

（2) Addition of sodium chlorate solution: Turn on the power water and adjust the water pressure to 0.3 MPa to ensure the normal operation of the water injector. Place the sodium chlorate suction tube into the sodium chlorate solution, open the sodium chlorate communication valve, close the inlet and outlet valves, and the equipment will start automatic suction. Observe the liquid level from the level pipe of the raw material tank. When the raw material is full, first open the inlet valve and outlet valve, and then close the sodium chlorate communication valve.

（3) Addition of hydrochloric acid: Under normal operation of the water injector, insert the acid suction tube into the hydrochloric acid tank, open the hydrochloric acid communication valve, close the inlet and outlet valves, and the equipment will start to suck material. Observe the liquid level from the level pipe of the raw material tank. When the raw material is full, first open the inlet valve and outlet valve, and then close the hydrochloric acid connecting valve.

（2） Equipment operation

1. Start up

Open the power water valve and adjust the water pressure to0.3MPa (normal working water pressure of the water injector is 0.2MPa-0.4MPa), to ensure the normal operation of the water injector. Activate the heating system to automatically heat it up. Open the raw material feeding valve, adjust the drip rate of the drip valve to the desired flow rate, and the equipment will operate normally. At this point, there should be a bubbling sound inside the device.

Attention: If it is the first time a new device is turned on, it should be sucked in through the air inlet10 liters of clean water, otherwise the equipment will not feed!

2. Adjustment of feeding speed

The feeding speed at the first start-up should be adjusted according to the parameter table, and then corrected based on the amount of residual chlorine in the water. If the residual chlorine in the water is high after the equipment has been running for a period of time, the feed flow rate can be reduced; if the residual chlorine is not enough, the flow rate can be increased.

Attention: During the operation of the equipment, be sure to set the outlet valve to the open position!

3. Shut down

When shutting down, it should be done in advanceClose the raw material feeding valve within 1-2 hours, stop adding materials, and allow the water injector to extract as much gas as possible from the equipment to prevent gas leakage caused by delayed reactions. After 1-2 hours of material stoppage, turn off the power water, the water injector stops working, and the equipment shuts down. If the heating system is not in use for a long time, it should be turned off and the power switch should be turned off.

4. Equipment cleaning

The equipment host and raw material box are equipped with sewage outlets. Equipment should be cleaned and discharged during demolition or long-term shutdown. During cleaning, when the water injector is in normal working condition, clean water is drawn in from the air inlet, and the clean water will be removed by the water injector along with the liquid in the reaction chamber; You can also open the safety valve, inject clean water into it for cleaning, open the drain valve, and drain the residual liquid several times until it is completely cleaned.

5、 Precautions

1. The equipment should be opened and inspected within one week after arrival, and the equipment and accessories should be listed according to the packing list. If there are any deficiencies or damages, please contact us as soon as possible.

2. The raw materials used in the equipment, sodium chlorate and hydrochloric acid, should be stored separately. Sodium chlorate should be stored in a dry, sheltered, and dark place. It is strictly prohibited to store it together with flammable materials such as sawdust, sulfur, phosphorus, etc. It is also strictly prohibited to squeeze or impact it.

3. Industrial hydrochloric acid (concentration 31%) should comply with the requirements of the national standard GB320-93 Industrial Synthetic Hydrochloric Acid. It is strictly prohibited to use waste acid, especially industrial waste acid containing organic matter and oil. Sodium chlorate should comply with the requirements of the national standard GB1618-1995 Sodium chlorate for industrial use.

4. Attention should be paid to antifreeze in winter and necessary heating measures should be taken to avoid damaging equipment. The equipment room should be dry, dark, and well ventilated.

5. Chlorine dioxide has strong oxidizing properties, and the plastic pipes connecting equipment are prone to aging and poorly sealed, so they should be checked and replaced regularly.

6. The drip valve, feeding tube, and water injector are prone to blockage when the raw materials contain impurities, and should be cleaned regularly. The sediment in the raw material box should also be cleaned regularly, and the raw material box should be equipped with a drain outlet.

7. The equipment casing is made of PVC plastic, and collision, compression, and sun exposure are prohibited.

8The equipment water tank is strictly prohibited from operating under pressure, and water can only be added from the water bowl at normal pressure!

6、 Common faults and troubleshooting methods