Two color quartz tube level gauge (kehaoyb. com)Suitable for interface measurement of two different medium densities. The color liquid level gauge is installed on various containers and boilers to directly observe changes in liquid level. The liquid phase display is green, the gas phase display is red, and the interface measurement is a three color interface. The contrast between its liquid and gas displays is significant, making it clear and distinct for long-distance observation and nighttime patrols. It successfully solves the problem of bulky and large sealing area of ordinary plate level gauges. Easy to leak, unclear display, and difficult to determine liquid level at close range, it is currently the ideal direct reading liquid level gauge both domestically and internationally.
Structural principle:
Dual color quartz tube level gaugeIt mainly consists of a special shaped quartz glass tube, a color filtered green glass sheet, a body, upper and lower valves, and a drain valve. The liquid level gauge and the flange on the container form a connector, which uses the optical principle of natural light refraction and reflection in the liquid to make the liquid phase appear green and the gas phase appear red with the help of color filter red green glass sheets. The red and green displays are clear and can be observed from a distance and patrolled at night.
The working principle is to use the optical principle of color level gauge refraction to achieve a three color display interface due to the differences in light and density of different liquids. A colored float floats between the interfaces of the two liquid levels, making the two interfaces distinct.
characteristic:
The direct reading instrument has clear liquid and vapor phase display, no blind spots, good sealing performance, high temperature resistance, high pressure resistance, and anti viscosity. Lightweight, long-lasting, leak free, simple structure, easy to rinse and maintain. This structure of the balancing device serves as a buffer, balances pressure, protects the position of the quartz glass liquid, and prevents high-temperature and high-pressure media from instantly entering the tube and causing violent impact, leading to the rupture of the quartz glass tube. It is recommended to use this device for working conditions above 6.4Mpa to ensure safe production.
Main technical indicators:
1. Measurement range (flange center distance): 500, 800, 1100, 1400, 1700, 2000mm (other center distances can be negotiated for supply);
2. Boiler water level gauge: ± 150, ± 200, ± 220mm;
3. Observation range: flange center distance;
4. Observation width: 20mm;
5. Display mode: vapor phase red, liquid phase green;
6. Material: Carbon steel, stainless steel (1Cr18Ni9Ti, 304, 316L);
7. Work pressure: 1.2, 2.5, 4.0, 6.4 (6.3) MPa;
8. Working temperature: Carbon steel ≤ 350 ℃; Stainless steel ≤ 450 ℃;
9. Discharge valve form: G1/2 "globe valve;
10. Connection flange diameter: DN15, DN20, or DN25. If the user needs to use other standards (such as GB, ANSI, DIN, etc.), they can design according to their needs;
11. Flange sealing surface: flat (RF) or convex (M);
12. Heat tracing steam jacket interface: ZG1/2 "external thread;
13. Working pressure of heat tracing steam: ≤ 1.0 MPa；
14. Electric heat tracing: using self limiting temperature tracing tape;
15. Steel ball sealing action pressure: ≥ 0.3 MPa；
16. Light source power supply: 220VAC;
17. Environmental temperature:- 50~ 80℃；
18. Explosion proof grade: Exia Ⅱ CT5.
instructions:
1. When using a water level gauge, the valve should be slowly opened to allow liquid to enter, and then the special glass tube should be preheated for 20-30 minutes. After reaching a certain temperature, the valves at both ends can be fully opened to allow water or other media to enter.
2. During use, it is required to regularly discharge pollutants to avoid blockage of channels due to erosion and false water levels.
3. When the quartz tube is accidentally damaged, using the upper and lower handles of the instrument to turn the plugs of the upper and lower plugs 90 degrees can prevent the medium in the container from continuing to flow out. At this time, the damaged parts can be replaced. ()