How does the waterproof breathable valve solve the potential problems of the mid-end lamps? The following is a detailed analysis for you. Tpo Photoinitiator,White Powder 95235-30-6,Light Yellow Powder 75980-60-8,Pale Yellow Liquid 84434-11-7 Henan Tianfu Chemical Co.,Ltd , https://www.tianfuchem.com
How does the waterproof breathable valve solve the potential problems of the mid-end lamps? The following is a detailed analysis for you:
Waterproof breathable valve
With the prosperity of the urban economy, urban lighting has received more and more attention, and urban lighting is composed of hundreds of millions of outdoor lighting fixtures, most of which are the reasons for high-power floodlights and lamps. Ordinary light bulb: electric energy → thermal energy → and 80% 80% of the electric energy is ordinary light bulb: electric energy → thermal energy → light energy and more than 80% of the electric energy is converted into heat energy, which is converted into heat energy, then our lamps need At present, the heat dissipation of the well-known heat-generating lamps is generally open vents. At present, the heat-dissipating lamps of the known heat-generating lamps are generally open vents and fans are installed, although the heat dissipation problem is solved, and the fan is installed, although The heat dissipation problem is solved. However, after running for a period of time, the inside of the device will be filled with a lot of dust. After the time, the inside of the device will be filled with a lot of dust, which will reduce the running performance of the device and affect the service life of the device. Suitable for outdoor equipment; can affect the service life of the equipment, etc., and this method is not suitable for outdoor equipment; if in a humid environment Use, if used in a humid environment, water vapor into the interior of the device will cause short circuit or malfunction. Causes a short circuit or malfunction. Therefore, the direct ventilation method is not a perfect cooling solution how to completely solve this problem? How to completely solve this problem? To talk about the cause of water leakage from the luminaire, it is necessary to talk about the cause of water leakage from the luminaire. At present, most of the outdoor high-power floodlights and LED lighting fixtures on the market are IP65. Most of the lighting fixtures are IP65-rated floodlights and LEDs. Most of the lighting fixtures are IP65, which are six-level dust-proof dust particles) multi-grade waterproof (anti-storm), and some are (dust particles) multi-grade waterproof (anti-storm), and some are IP68/IP67 protection. Grade products have a large difference in waterproof performance. Protection grade products, IP68/IP67 protection grade products, where the waterproof performance is quite different. Is it a leaky lamp that does not leak water? Is it a leaky lamp that does not leak water? Field inspection and testing of high-end IP IP-level luminaires in the installation of a current: high-end IP-level luminaires have a process in the installation process - the shell assembly after installation all flood test, but actually in the After the installation of the shell assembly, all the water immersion tests are carried out. After the installation of the process shell assembly, there is still a leakage rate of more than five thousandths after the flood test. After use, there is still a leakage rate of more than five thousandths after use. After the leaking lamp is removed, the water immersed in the non-working state, after the water lamp is removed, the water is immersed for 6 hours in the non-working state, and the water is not leaked. Through analysis, research and inspection of relevant materials, it is learned: through analysis, research and inspection of relevant materials. It is understood that all outdoor high-power luminaires have respiration during work (the power luminaires have respiration during operation (except for explosion-proof lamps that are subject to high-pressure seals). Except for lamps). According to the principle of thermodynamics, for every 1 °C increase in air temperature, according to the thermodynamic principle, for every 1 °C increase in air temperature, the volume expansion rate is 1 °C 1/273, which is 1/273, for example: an ordinary 210W 210W high-power floodlight The net volume of the lamp is, for example, an ordinary 210W high-power floodlight with a net volume of 6.6 liters rising, and an environment with a temperature difference of about 80 °C before and after the lamp is turned on at 20 °C, 80 ° C, 6.6 liters. In the environment of 20 °C, the temperature difference between the lamp cavity before and after turning on the lamp is about 80 °C, 6.6 × 80 / 273 = 1.9 liters, indicating that the lamp housing at work should produce 1.28 ie 6.6 × 80 / 273 = 1.9 liters, indicating working hours The lamp housing is to produce 1.28 atmospheres, one atmosphere, and it is obvious that the lamp housing of any outdoor lamp except the explosion-proof lamp is unbearable. Obviously, except for the explosion-proof lamp, the lamp housing of any outdoor lamp is difficult to bear. This is the exhaust of the outdoor luminaire about 30 minutes before the maximum temperature is reached. This is the process of exhausting the outdoor luminaire for about 30 minutes before the maximum temperature is reached. Even if it rains, it is difficult for the rain to seep into the lamp. After 30 minutes, the gas process, even if it rains, it is difficult for rainwater to penetrate into the lamp. After 30 minutes, the lamp with good air tightness still holds a certain pressure, and the lamp with good density still holds a certain pressure. The pressure inside the lamp depends on the pressure of the elastic fastener, the pressure of the elastic fastener, and of course the air pressure of the lamp with poor airtightness has been balanced internally and externally. This process is a relative balancing process (the longest time), in this Balanced, this process is a relatively balanced process (the longest time). In this process, as the rain is big and small, the time is stopped. During the process, the rain is large and small, the time is stopped, the temperature inside the lamp cavity is The pressure is also slightly undulating, with a small fluctuation. At this time, the probability of leakage outside the lamp with poor air tightness is very small. But the most important is the third stage that has been ignored so far, but the most important is the third stage that has been neglected so far, that is, when inhaling, especially when the light is extinguished, the process is not stopped, especially when the light extinguishes the rain. When it is not stopped, the lamp is cooled down by the rain in the process, the temperature in the lamp cavity drops sharply, the temperature drops in the lamp cavity, and the temperature in the lamp cavity drops sharply. The negative pressure generated forces the waterproof rubber strip or sealing glue to weaken under the action of air pressure. Deformation at the place/thin, forcible inhalation, the strip or sealant is deformed from the weak/thin under the action of air pressure, forcibly inhaling, and the lamp with poor airtightness will directly inhale from each leaking place, and the airtightness Poorly illuminating lamps will directly inhale from various leaking places. This process is the inhalation process. The position of the suction port, the size of the gap, and the process of inhalation are affected by many factors such as the position of the suction port, the size of the gap, and the amount of rainfall. Especially for the lamps with better air tightness, the leakage of water is basically concentrated in this inhalation process. Inhalation process. What should I do if the lamp with good airtightness does not stop after the light is extinguished? In order to dissipate heat, add a fan or open a venting hole, resulting in direct water ingress. In order to dissipate heat, add a fan or open a venting hole, resulting in direct water ingress. When the seal is done well, the luminaire can't escape the fate of the final water if it doesn't have a very strong outer seal. The shell, still can not escape the fate of the final water. However, the physical strength of the lamp housing is forcibly increased, and the cost is too high. However, the physical strength of the lamp housing is forcibly increased, and the cost is too high. And there is a security risk of bursting. In a burst of security risks. Then there is no way to make the water inaccessible, then there is no way to make the water inaccessible, and let the air go in and out at will.
The respirator of the luminaire - the waterproof venting valve has a water vapor molecular diameter of 0.0004 μm, a water vapor molecular diameter of 0.0004 μm, a minimum diameter of 0.0004 μm in the rainwater, a diameter of 20 μm, and a drizzle diameter of up to 400 μm, 20 μm and 400 μm. The diameter of the fog is 20 microns, and the diameter of the drizzle is as high as 400 microns. If a film with a pore diameter between water vapor and rainwater can be produced, and a film with a pore diameter between water vapor and rainwater can be produced, it can be waterproofed. Breathable. Waterproof and breathable. Gore Corporation of the United States used polytetrafluoroethylene (PTFE) to become the first company in the United States to produce the film using polytetrafluoroethylene (PTFE) as the first (PTFE).
GE-VT133 waterproof breathable valve, 0.45um, now our company uses a GE-VT133 waterproof breathable valve with a gas permeability of 0.45um. It maintains water resistance under the pressure of 0.15Mpa and maintains water pressure. The pressure is 0.007Mpa. The water resistance is maintained under a pressure of 0.15 MPa, and under a pressure of 0.007 MPa: 60 120 L of air 60 air per square centimeter per hour. Pass 60-120L of air. The appearance of gas permeable membrane and the appearance of gas permeable membrane can solve the effective protection of the luminaire to liquid water and ensure the air circulation inside and outside the luminaire. Ensure air circulation inside and outside the luminaire.
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