Manufacturer of UV disinfection equipment for open channelsSystem:

Hebei Lucheng Environmental Protection Technology Co., Ltd. has carefully designed the JiLucheng brand open channel ultraviolet disinfection system, which adopts a low water resistance ultraviolet disinfection module structure to achieve smaller water resistance and higher reliability. Each standardized UV disinfection module consists of a stainless steel lamp frame, UV sterilization lamp tube, quartz sleeve, cleaning structure, power distribution system, and PLC data acquisition system. The entire UV disinfection system consists of several UV disinfection modules, which are easy to install, operate, and maintain.

Manufacturer of UV disinfection equipment for open channelsTechnical characteristics of ultraviolet disinfection module

1. The low water resistance module structure has lower water resistance than traditional module structures, and the water level changes before and after disinfection are smaller.

2. The waterproof level of the underwater part meets the IP68 standard, and the waterproof level of the above water part meets the IP65 standard, suitable for occasions with strict requirements.

3. Multiple sealing and waterproof treatment, the quartz tube is tightly installed and will not fall off due to friction during automatic cleaning (the tail of the sleeve is designed with a locking device).

4. Install sealing rings in the cable section to effectively prevent short circuit damage to the lamp caused by water ingress into the cable (using 316L16 * 1 stainless steel pipes for separate threading, T-shaped silicone sealing rings, and secondary protective sealing sleeves for the lamp head).

5. Made of high-quality corrosion-resistant stainless steel material -316L, the lamp tube and signal cable are sealed in the disinfection module and will not be exposed to sewage and ultraviolet light.

6. Provide various design structures for each module, ranging from 4 to 12 lamps, based on different customer requirements for water volume, water quality, and sterilization.

Jilu ChengpaiOpen channel ultraviolet sterilizerUV sterilization lamp of the system

One of the core components of the UV disinfection system is the UV sterilization lamp tube. The UV lamp tube used by our company is a first-line brand of low-pressure high-strength mercury amalgam UV lamp tube, installed in a quartz sleeve on the module, parallel or perpendicular to the direction of water flow. The effective working life of the lamp tube is 9000-12000 hours, and the power of a single lamp tube can reach 250-325W (imported lightsources sterilization lamps are 250W and 320W models, Philips sterilization lamps are 325W models). Customers can choose according to their needs.

quartz sleeve

The quartz tube is installed on the module bracket, with a UVC transmittance greater than or equal to 85%. One end of the quartz tube is a closed end and the other end is an open end. Through multiple sealing designs, the protection level is IP68, effectively preventing water from penetrating into the quartz tube and affecting the normal operation of the UV lamp. Using high transmittance (UVT) quartz tubing: High quality quartz tubing is selected to ensure excellent UV penetration and high-intensity UV output (quartz tubing uses Fudong Zhengyou or Pacific brand).

Electronic ballast module

The electronic ballast is another core component of the entire system, and the prominent advantage of the UV disinfection system is the stability of the electronic ballast. The electronic ballasts all use preheating type that matches the ultraviolet sterilization lamp, with built-in fault output and overcurrent protection functions, effectively increasing the service life of the ultraviolet sterilization lamp. The electronic ballast is installed inside the ballast cabinet or module chassis. Made of high-quality corrosion-resistant stainless steel material -304, the lamp tube and signal cable are sealed inside the disinfection module and will not be exposed to sewage and ultraviolet light. We provide various designs of 4 to 12 lamps per module based on different customer requirements for water volume, water quality, and sterilization.

Ballast cabinet: The cabinet has a protection level of IP55 and is equipped with a cooling device (forced air cooling or air conditioning cooling) and an air filtration device to prevent dust and humid outside air from entering, ensuring stable operation of the electronic ballast (the electronic ballast is customized from Kvyi Optoelectronics or Philips brands).

The electronic ballast module is connected to the disinfection lamp module through a connector plug, and the outer wall of the connecting wire is made of anti-corrosion and UV resistant materials.

Automatic Control Center

The control system implements all parameters and controls through the human-machine interface, such as turning on/off disinfection equipment, fault inquiry, lamp running time, UV lamp working status, cleaning interval time, and manual cleaning function parameter settings, etc., to facilitate the operator's monitoring of the operation of the UV disinfection system and provide effective sterilization dosage for the disinfection process.

1. Remote control

2. The automatic control center can exchange data with the central control room through the following methods to achieve remote control:

Active or passive signals

Industrial Ethernet

PRSFBUS IP module

3. The equipment can choose the appropriate PLC brand and interface according to user needs. The standard configuration is Siemens products.

4. Alarm system

When a fault occurs, the alarm device can indicate to the user which fault and its location through sound, visual, and other means, and the fault can be queried and recorded.

UV intensity monitoring system

Each module has a set of ultraviolet intensity monitoring system, which includes accessories such as ultraviolet probes and UV intensity meters. The installation of the ultraviolet probe underwater is convenient for monitoring the scaling situation of the quartz tube and the intensity changes of the ultraviolet lamp.

Automatic Cleaning System

The effectiveness of UV disinfection is often greatly affected by the scaling on the surface of quartz sleeves, resulting in a significant decrease in UV intensity.
The disinfection equipment comes with a built-in cleaning system. This cleaning technology can automatically clean the surface of the casing online within any set time without affecting the operation of the equipment, with high efficiency and low friction without jamming, providing stable and efficient sterilization effect for the UV disinfection system.

The automatic cleaning system is driven by compressed air and linked with the ultraviolet light intensity monitoring device for automatic cleaning, and can easily switch between manual/automatic working states.

Water level control system for open channel ultraviolet sterilization system

1. Water level sensor

The water level sensor is an effective and necessary means of self-protection for the lamp tube. Due to its high power, ultraviolet sterilization lamps must be naturally cooled by sewage. When exposed to air for a long time and lit up, the lamp may burn out due to insufficient heat dissipation. Therefore, it is necessary to ensure that the water level in the open channel can submerge all the lamps. However, the ultraviolet transmittance in sewage is low, and when the water level is too high, it can lead to unsatisfactory disinfection effect of the surface water layer. Therefore, the water level in the open channel cannot be too high. The water level sensor measures the water level value in the open channel online, ensuring that the water level in the channel remains within the designed range. When the water level in the open channel exceeds the set water level for a long time, it can automatically send an alarm to the control system and turn off the light tube.

2. Open channel water level control:

1. Method: Non powered water level control overflow dam gate.

2. Material: 304 stainless steel or completed by civil engineering.

3. Water outlet method: The weir gate adopts top water outlet (bottom water outlet is used for non powered water level control overflow weir gate) to ensure a stable water level change in the open channel. Keep all the lamps submerged within this range of change.

4. Advantages: High precision (when the flow rate changes to 1.30, the water level fluctuation range is less than ± 5cm), fast response, simple structure, easy installation, suitable for occasions with large flow rate changes, no complex mechanical transmission device, no need for external power and intervention, and the entire process is fully automatically adjusted.

5. Head loss: less than 500mm.

Installation: Drainage outlet at the end of the canal