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Precautions for installing explosion-proof cameras:
1. The inlet of the explosion-proof camera must be sealed with a rubber seal. It is forbidden to use other methods such as filling and sealing mortar and asbestos rope. It is forbidden to fill any substance in the cavity. Loss of explosion-proof performance; oil on the rubber seal should be scrubbed to prevent age deterioration.
2. It is forbidden to modify the structure of the explosion-proof camera, parts and components and the internal wiring of the equipment. The fastening bolts shall not be interchanged or missing, and the elastic gaskets and metal gaskets of the extra inlet and outlet ports must be kept sealed at the factory, and the compression nut should be tightened to seal the inlet.
3, the best route to take the dark line, there is no way to take the open line, then it is necessary to ensure that the physical part of the line to do the best.
4. When installing, you should pay attention to avoid strong impact explosion-proof infrared camera. Before installation, you must confirm whether the power supply voltage is the specified voltage, so as not to burn out, the lens should not be aligned with strong light, such as sunlight, lighting, etc., otherwise it is easy to appear too bright phenomenon The ccd's service life will also have a certain impact, explosion-proof infrared camera installation location should also avoid moisture, dust, hot, cold, strong electromagnetic radiation and other places.
5, daily operation and maintenance inspection, should try to avoid opening the explosion-proof camera housing, must be opened when the power should be cut off. If the explosion-proof enclosure is opened, the explosion-proof surface shall be properly protected and shall not be damaged. During the inspection, the explosion-proof surface shall be placed upwards, and shall not be in direct contact with the ground. After the scene is cleaned, it shall be coated with a phosphatizing paste or 204 anti-rust oil.
6, explosion-proof infrared camera is based on infrared light emitted by the CCD to reflect infrared light on the object reflected on the CCD camera lens imaging. Therefore, when installing an explosion-proof infrared camera, we should avoid objects that absorb infrared light such as all black objects, empty spaces, and water in the field of view. If infrared rays are absorbed or weakened, the effective radiation effect of the infrared light will be greatly reduced. Thus affecting the explosion-proof infrared camera monitor screen effect.
Double-color Geomembrane is one kind of Hdpe Geomembrane with two side in different color. This Geomembrane liners can be used as Aquaculture, Landfill Water, Treatment System , Mining etc, area.
Black and White geomembranes offer the advantages of both a light reflective white surface and a black damage detection layer.
The liner`s UV resistant white surface reflects light – minimizing associated heat absorption by as much as 50% – and thus reducing the potential for membrane wrinkling due to thermal expansion and contraction. Traditional black HDPE geomembranes can reach temperatures of 160°F or more and experience thermal expansion exceeding 1% depending on temperature swings.
Visual inspection of the liner for damage is greatly improved. Damage is indicated by any scarring beyond the white, light reflective layer as the contrasting black primary layer is clearly exposed.
The following parameters based on the GRI GM13 for your reference.
If you have special needs, please feel free to tell us.
| Properties | Test Value | |||
| 0.75mm | 1.00 mm | 1.50 mm | 2.00 mm | |
| Thickness - mils (min. ave.)· lowest individual of 10 values |
nom. (mil)-10% |
nom. (mil)-10% |
nom. (mil)-10% |
nom. (mil)-10% |
| Density (min.) | 0.940 g/cc | 0.940 g/cc | 0.940 g/cc | 0.940 g/cc |
|
Tensile Properties (1) (min. ave.)· yield strength· break strength· yield elongation· break elongation |
11 kN/m 20 kN/m 12% 700% |
15 kN/m 27 kN/m 12% 700% |
22 kN/m 40 kN/m 12% 700% |
29 kN/m 53 kN/m 12% 700% |
| Tear Resistance (min. ave.) | 93N | 125 N | 187 N | 249 N |
| Puncture Resistance (min. ave.) | 240N | 320 N | 480 N | 640 N |
| Stress Crack Resistance (2) | 300 hr. | 300 hr. | 300 hr. | 300 hr. |
| Carbon Black Content - % | 2.0-3.0% | 2.0-3.0% | 2.0-3.0% | 2.0-3.0% |
| Carbon Black Dispersion | note (4) | note (4) | note (4) | note (4) |
|
Oxidative Induction Time (OIT) (min. ave.) (5) (a) Standard OIT- or - (b) High Pressure OIT |
100 min. 400 min. |
100 min. 400 min. |
100 min. 400 min. |
100 min. 400 min. |
|
Oven Aging at 85°C (5), (6) (a) Standard OIT (min. ave.) - % retained after 90 days- or - (b) High Pressure OIT (min. ave.) - % retained after 90 days |
55% 80% |
55% 80% |
55% 80% |
55% 80% |
|
UV Resistance (7) (a) Standard OIT (min. ave.)- or - (b) High Pressure OIT (min. ave.) - % retained after 1600 hrs |
N.R. (8) 50% |
N.R. (8) 50% |
N.R. (8) 50% |
N. R. (8) 50% |
Geomembrane Main Application
Aquaculture:
Using the geomembrane anti-seepage feature;
Geomembrane liners can be used as fish ponds, shrimp pond, and other aquaculture.
Landfill:
HDPE geomembrane is the most widely used in landfill anti-seepage engineering material,
The use of main parts of the bottom of the landfill liner, landfill sealing cover, leachate regulating pool liner, etc.
HDPE geomembrane structure with smooth surface and textured surface, suitable for different sites.
Water Treatment System:
Geomembrane is applied to the adjustment of the power plant and sewage treatment plants pool;
and a series of water treatment systems.
Mining:
Geomembrane suitable mining: washing pool, pool heap leaching, heap yard, dissolving tank, tank,
storage area, the bottom line of the tailings seepage control, etc
Double-Color Geomembrane,Double Textured Hdpe Geomembrane,Waterproof Hdpe Geomembrane,Hdpe Geomembrane
Shandong Tianhai New Materials Engineering Co., Ltd , https://www.chinatinhy.com