Applications and Differences of Medium/High-Pressure and Low-Pressure UV Lamps:

About Medium-Voltage Lamps Introduction

(1) Characteristics of Medium-Pressure UV Lamps:

Single Tube High-Power (400W-10,000W/Single Tube)

2. Energy Efficiency

3. More compact and compact dimensions (length not exceeding 700mm)

4. Reduced the number of UV lamps and the reactor volume (969 tons/hour flow rate, only 4 lamp tubes, extremely compact)

5. Broader wavelength range, with effective irradiation span within 200-400nm (effectively removes bacteria, viruses, chloramine, chloride, and trichloramine).

6. Ultraviolet Biological Effects

(II) Medium-pressure (MP) UV lamps differ significantly from the more widely-known low-pressure (LP) UV lamps, and these differences are a primary reason for choosing medium-pressure UV systems.

Some applications may require the use of medium-pressure UV lamps due to their broader range of emitted wavelengths. These applications include:

At public swimming pools, only ultraviolet light with wavelengths between 200-400nm can effectively eliminate chloramines (combined chlorine) and the taste of chlorine.

2. Two significant reasons for utilizing medium-pressure UV lamps technology are:

To minimize the installation footprint, the high-power medium-voltage lamps have significantly reduced the size of the UV reactor.

2) Due to the higher power of each medium-pressure UV lamp, the number of UV lamps used is significantly reduced.

3) Mid-pressure UV lamps can withstand higher pressure and a wider temperature range, making them suitable for more demanding and stringent application environments (BEST UV can withstand up to 16 kg of pressure and withstand temperatures of up to 100 degrees Celsius).

Section 2: Introduction to Low-Pressure (LP) Lamps

Low Pressure (LP) UV Lamps Features

Significant Differences Between Low-Pressure (LP) and Medium-Pressure (MP) UV Lamps:

The power rating of individual light tubes is relatively low (individual light tubes have a power rating below 320W).

2. Sterilization efficiency, compared to medium-pressure lamps, the sterilization time is longer (from zero to a few seconds under low pressure, less than one second under medium pressure).

3. Low-pressure (LP) UV lamps become longer in size as the wattage increases.

4. The demand for larger capacity UV reactors requires setting the reactor length based on the number and length of the tubes. Therefore, slightly higher power low-pressure UV systems tend to be more space-consuming.

5. Low-pressure ultraviolet lamps can only emit wavelengths at 254nm.

Section II: Applications of low-pressure ultraviolet lamps primarily include:

Low processing volume and low power requirements, particularly in the pure water field.

2. The frequent on-off operation requirements necessitate that medium-pressure UV systems are typically managed by a central controller, with both activation and shutdown featuring delay protection. Consequently, frequent on-off operations are not feasible.

3. Low-pressure ultraviolet lamps offer a high conversion efficiency, with up to 40% of the power converted into sterilization energy. Additionally, the wavelength of 254 nanometers is more targeted in disinfecting against bacteria and viruses.