What is a mercury lamp used for? What is the light source of mercury lamp

It is used to produce ultraviolet sterilization, and someone should not open it!

Mercury lamps are gas light sources that produce mercury vapor to obtain visible light when mercury is discharged. Mercury vapor lamps for short, mercury lamps, are the oldest HID lamps, and mercury vapor lamps emit light in a discontinuous spectrum. In its spectrum, there is a lack of red light components, and the green area, blue area and ultraviolet spectrum are strong, so it is not suitable for color photography light source, and is mostly used for urban street lighting.

Mercury lamps are gas light sources, and are electric light sources that produce mercury vapor to obtain visible light when mercury is discharged. Mercury vapor lamps are the oldest HID lamps, and mercury vapor lamps emit a discontinuous spectrum of light. In its light spectrum, there is a lack of red light components, and the green area, blue area and ultraviolet spectrum are strong, so it is not suitable for color photography light source, and is mostly used for urban street lighting.

What does mercury lamp mean? What does mercury lamp mean? [Mercury lamp] means:

Also known as mercury lamp. A type of gas-discharge lamp that uses mercury vapor. The lamp is equipped with electrodes at both ends, and air is extracted and filled with mercury and a small amount of argon.

When energized, the mercury in the tube evaporates and is ionized by electron excitation. According to the positive pressure of mercury vapor, it is divided into three types: high-pressure mercury lamp (used for square lighting), low-pressure mercury lamp (used for work and life lighting) and ultra-high pressure mercury lamp (used for optical instruments). Mercury lamp in the early draft of the brigade in the Modern Chinese Dictionary, page 456 of the mercury lamp in the explanation of the Chinese Cihai.

What does mercury lamp mean?

Also known as mercury lamp. A gas-discharged stool lamp using mercury vapor. The lamp is equipped with electrodes at both ends, and air is extracted and filled with mercury and a small amount of argon.

When energized, the mercury in the tube evaporates and is ionized by electron excitation. According to the mercury vapor pressure, it is divided into three types: high-pressure mercury lamps (used for square lighting), low-pressure mercury lamps (used for work and life lighting) and ultra-high-pressure mercury lamps (used for optical instruments).

Mercury lamp in page 456 of the Modern Chinese Dictionary Mercury lamp Explanation of the English word for mercury lamp in the Chinese Cihai Mercury lamp

Use mercury lamps to form sentences.

1.High pressure mercury lamp external ballast 2Fluorescent low-pressure mercury lamp 3When the user uses high-pressure mercury lamp, high-pressure sodium lamp, and metal halide lamp source, it must be equipped with a corresponding flameproof ballast box. >

The explanation of the word mercury lamp is: also known as "mercury lamp". A gas discharge lamp that uses mercury tomato to prepare vapor.

The lamp is equipped with electrodes at both ends, and air is extracted and filled with mercury and a small amount of argon. After the electricity is applied, the mercury in the tube evaporates and ionizes and emits light by the electron stimulation. According to the mercury vapor pressure, it is divided into three types: high-pressure mercury lamps (used for square lighting), low-pressure mercury lamps (used for work and life lighting) and ultra-high-pressure mercury lamps (used for optical instruments).

The explanation of the word mercury lamp is: also known as "mercury lamp". A type of gas-discharge lamp that uses mercury vapor.

The lamp is equipped with electrodes at both ends, and air is extracted and filled with mercury and a small amount of argon. When energized, the mercury in the tube evaporates and is ionized by electron excitation. According to the mercury vapor pressure, it is divided into three types: high-pressure mercury lamps (used for square lighting), low-pressure mercury lamps (used for work and life lighting) and ultra-high-pressure mercury lamps (used for optical instruments).

The phonetic pronunciation is: The structure is: mercury (upper and lower structure) lamp (left and right structure).

Pinyin is: gǒngdēng.

What is the specific explanation of mercury lamp, we will introduce it to you through the following aspects:

1. Online explanation [click here to view the details of the plan].

Mercury lampMercury lampMercury lamp (mercurylamp) is an electric light source that produces mercury vapor to obtain visible light when mercury is discharged. Mercury lamps can be divided into three types: low-pressure mercury lamps, high-pressure mercury lamps, and ultra-high-pressure mercury lamps. When a low-pressure mercury lamp is lit, the mercury vapor pressure is less than one atmosphere, and the mercury atoms mainly emit ultraviolet light.

The inner wall of the commonly used "fluorescent lamp" lamp is coated with calcium halophosphate phosphor, which converts ultraviolet light into visible light. The inner wall of the energy-saving fluorescent lamp is coated with rare earth phosphor, which has a higher luminous efficiency.

Idioms about mercury lamps.

Wine lamps, red lights, fires, snow cases, fluorescent lamps, sand and mercury lamps, red wine lamps, dry lamps, dry lamps, lanterns, thousands of lights, hanging lights, colorful green wine red lights.

Words about mercury lamps.

Fighting sand and making mercury, going off the lamp, snow case, fluorescent lamp, lamp light, making up for the lamp, making sand and mercury, ten thousand lights, wine, red light, sand and mercury, hanging lamp.

Sentence formation about mercury lamp.

1. It can be equipped with incandescent lamp, mercury lamp, high-pressure sodium lamp and metal halide lamp.

2. The photocatalytic degradation reaction of different concentrations of photocatalyst and ultraviolet radiation intensity on malachite green waste liquid under the action of simulated sunlight and high-pressure mercury lamp was studied.

3. By measuring the characteristic spectrum of low-pressure mercury lamp, the influence of different slit widths on spectral resolution was analyzed.

4. It can be equipped with incandescent lamps, mercury lamps, high-pressure sodium lamps, and metal halide lamps, and umbrellas can be installed according to user requirements.

5. Experiments have proved that high-pressure mercury lamps can stimulate the light response of naphthalene more effectively than natural sunlight.

The poles of the energy-saving lamp are ordinary tungsten filaments. When the tungsten filament is energized and heated, it emits electrons. An electric field is formed by adding a relatively high voltage to both sides of the lamp, and these electrons will be accelerated in the lamp, forming an electron flow with a certain speed and energy.

The lamp is pumped into a vacuum and filled with mercury, which we call mercury. When the lamp is energized and heated, the mercury evaporates from a liquid state to a gaseous state. Mercury atoms in a free state are formed.

The electrons in the electron flow hit the mercury atom at a certain velocity, causing the mercury atom to be excited and turn into an ionized state. It is said that there is a step, and the mercury in the excited state spontaneously falls back to its original state after a short period of time, while releasing ultraviolet light, which cannot be used for illumination. So we coated some fluorescent substances on the inner wall of the lamp, and under the bombardment of ultraviolet light, the fluorescent substances were excited and could emit more natural light, which could be used for our lighting.

The more common energy-saving lamps on the market include ordinary lamps and tri-color lamps, which are becoming more and more mainstream, which have the advantages of saving electricity compared with incandescent bulbs. The difference is that the color rendering of ordinary lamps is low, while the lamps of three primary colors show a natural sunlight color, and are better than ordinary lamps in terms of color rendering and light efficiency. From the above, we can know that mercury plays an intermediary role in energy-saving lamps, and without mercury energy-saving lamps they will not emit light.

There is very little mercury in each lamp. It was found that a coarse fluorescent lamp with a diameter of 36 mm contained 25 45 milligrams of mercury, a thin fluorescent lamp with a diameter of 26 mm contained 20 milligrams of mercury, and a compact fluorescent lamp with a diameter of 10 mm contained 10 milligrams of mercury.

Mercury is liquid at room temperature and is a silvery-white liquid metal that flows easily. Mercury exists as a gas discharge medium in fluorescent tubes, which not only improves the luminous efficiency of the lamp, but also enriches the types of light sources. Therefore, current energy-saving lighting sources contain mercury.

Because the boiling point of mercury is very low, it can evaporate at room temperature, and after the discarded fluorescent tube is broken, mercury vapor is immediately emitted to the surroundings, and the mercury concentration in the surrounding air can reach 10 20 milligrams per cubic meter instantaneously, and the maximum allowable concentration of mercury in the air stipulated by the state is milligrams per cubic meter. It can also flow with air. Once the amount of mercury entering the human body exceeds a certain threshold, it will damage the central nervous system of the human body, causing great harm to the body.

Mercury is difficult to remove once it enters the body. Workers at my factory have not been exposed to mercury for more than a decade, but their levels of mercury are still high when examined, and they are still being injected at any time. Therefore, the author has an instinctive fear of energy-saving lamps.

In fact, mercury-containing lamps generally do not have any pollution in the process of use, and the pollution is mainly that the electric light source is discarded at will after being scrapped, and the rupture causes mercury to diffuse into the air, endangering human health and polluting the environment. Because the difficulty and value are too low, and it has many other ills, the only way is to eliminate it.

Mercury vapor produces ultraviolet rays under the bombardment of electrons, and ultraviolet rays will shine when irradiated to phosphors, and mercury vapor is mainly used to produce ultraviolet rays.

Mercury plays an intermediary role in energy-saving lamps, without which they do not emit light.

Mercury vapor acts as an excitation for phosphors to emit light.

In fluorescent lamps, it is the gaseous electrons of mercury that come into play.

In fluorescent lamps, liquid mercury with a purity of liquid mercury will evaporate into a gaseous state, and the mercury gas pressure of the evaporation is high at a high temperature, and the mercury gas pressure is about 40 degrees Celsius.

Because liquid mercury is not easy to **, it is harmful to the environment. Gu invented "solid mercury", that is, the combination of mercury and other metals, called amalgam, or other names, which is convenient and also changes the relationship between temperature and the unilateral rise of mercury pressure.

Solid mercury is formed in granular form. Some are placed in the lamp tube like liquid mercury (internal solid mercury), and some are placed in the lamp base (external mercury). At the beginning, the temperature is high, and the mercury gas is high; After a certain temperature, the mercury gas pressure no longer increases.

Storage method: Store in a cool place and seal and store away from direct sunlight.

1) It must be equipped with transformers and capacitors of corresponding specifications when using;

2) The surface of the lamp must be wiped clean with absolute ethanol before use, and it is strictly forbidden to touch it directly with your hands;

3) the lamp is discharged by high-pressure mercury vapor to produce strong long-wave violet radiation (the main wavelength is 365 nm);

4) Strong ultraviolet rays can burn the eyes and **, direct exposure to lights should be avoided during use;

5) If the lamp is accidentally damaged, resulting in mercury vapor dissipation, the on-site personnel must leave immediately and let the site be continuously ventilated for 20-30 minutes to prevent mercury vapor from being inhaled into the body and causing poisoning; When it is safe, the site should be cleaned up in time, and the mercury raw materials of ** can be retained for experimental purposes.