Glove box usually refers to a kind of equipment used in industrial scientific research and production to provide a water-free and oxygen-free environment. This equipment usually has a fully enclosed cavity, which is generally filled with ammonia, ammonia, and xenon. For inert gas, windows and special gloves are installed on one or more sides of the cavity, usually with a transition chamber, which completely isolates the environment inside and outside the cavity, which can isolate air from entering the cavity and avoid contamination of the atmosphere in the cavity. Operators can use gloves to manipulate the materials in the cavity. Due to the water and oxygen permeability of gloves and sealing materials and the water and oxygen contained in the operating materials themselves, a small amount of water and oxygen will enter the glove box. To maintain the extremely low water oxygen content in the environment of the tank, we usually need materials that strongly adsorb water and oxygen and gas purification equipment to continuously adsorb the water oxygen molecules in the tank. In order to know the level of water and chlorine content in the atmosphere in the glove box, an accurate trace water and oxygen probe is usually needed to detect the atmosphere environment in the glove box.

  1. Vacuum glove box
    Purpose of vacuum glove box:
    In the process of scientific experiments, some substances are easily oxidized and deliquescent in the atmosphere, which makes the chemical reaction of the test substance and the pre-treatment of the sample very difficult, which affects the test process and test results.

Vacuum glove box (also known as vacuum inert gas operation box) effectively solves these problems. The device can safely put in and take out test samples, and operate, react and test freely in an oxygen-free and water-free state to ensure The normal conduct of scientific experiments. This product is an ideal device for scientific experiments in universities, research institutes, and enterprise laboratories. It is widely used in biochemistry, metallurgy, electronics, chemical engineering, geology, minerals, medicine and other departments.

Vacuum glove box model specifications:
Specification (mm): 1200×700×1120
Front chamber size (mm): Ф340×400
Glove mouth diameter: Ф145

Technical index of vacuum glove box:
Pre-stage vacuum degree: 0～-0.1Mpa (2.5 level vacuum gauge) 　 hold pressure for 12 hours
Vacuum degree of the main cabinet: 0～-0.1Mpa (2.5 level vacuum gauge) 　　 keep pressure for 12 hours
Use gas: argon, helium, nitrogen (purity above 99.95%)

The main assessment indicators of the vacuum glove box:

  1. Vacuum degree: Only when a certain degree of vacuum is reached, can the atmosphere in the box meet the requirements.
  2. Holding pressure time: Only when a certain negative pressure is reached and kept for a certain period of time, can it be verified whether the tightness of the box meets the requirements.

Features of vacuum glove box:
★ Stainless steel structure, anti-corrosion, easy to clean, no pollution.
★ The viewing angle of the observation window is wide, clear and bright.
★ The vacuum glove box is equipped with porous electrical sockets to facilitate scientific experiments.
★ The vacuum glove box can be equipped with an electric furnace for local heating.
★ Thick latex gloves are used for vacuum glove box operation gloves, which are reliable in sealing.

  1. Anaerobic glove box
    The anaerobic glove box is a special device for bacterial culture and operation in an anaerobic environment. It can provide strict anaerobic condition and constant temperature culture conditions and has a systematic and scientific working area. The operation and cultivation in this device can cultivate anaerobic organisms that are difficult to grow, and can avoid the risk of death of anaerobic organisms exposed to oxygen when operating in the atmosphere. Therefore, the anaerobic glove box is an ideal tool for anaerobic biological testing and scientific research. The anaerobic glove box is also a good instrument with multiple uses, such as changing the operation method to provide good growth conditions for the growth of microaerobes.

Structural composition of anaerobic glove box
The anaerobic glove box is divided into four parts: anaerobic room, transmission cabin, bare-hand sleeve operating hole, air circuit and circuit control system.

  1. Anaerobic chamber
    Mechanical forced convection in the inner cavity and positive pressure in the inner cavity can achieve a stable and uniform state in four aspects of constant temperature, humidity control, deoxygenation, and biological detoxification, and rapid recovery, operation and cultivation are carried out in the same room.
  2. Transmission cabin:
    The compact cylindrical design allows one person to easily transfer samples with one hand.
  3. Bare-hand sleeve operating hole:
    There is no need for vacuuming/nitrogen filling replacement process, hands can go straight in and straight out of the cavity anaerobic.
  4. Control system:
    All-round real-time status self-check and alarm function to ensure the normal operation of the equipment.

Three, industrial glove box
Basic technical indicators of industrial glove box: 　

  1. The water content is less than 1ppm; the oxygen content is less than 1ppm.
  2. The transition chamber can withstand: vacuum degree ≥100pa.
  3. Airtightness: Leakage rate ≤0.05Vol%/h.

Conventional configuration of industrial glove box
Cabinet, rack, tool transition compartment, material transition compartment, shelf, visual panel, glove hole, gloves, power socket, lighting system HEPA filter, vacuum gauge, pressure gauge, foot controller, gas purification system , PLC control system, organic gas adsorber, vacuum pump, water sensor, oxygen sensor, pressure sensor, heating system, refrigeration system, other options, installation environment.

Specific requirements for water, electricity and gas for industrial glove boxes:
Electricity: 220V is required;

Water: The industrial glove box needs to connect ordinary tap water to the cooling water inlet of the purification system, and the water tank does not need to be opened for a long time until the water tank is full;

Gas: Industrial glove box needs to provide inert gas (N2 or Ar) and mixed gas (N2 or Ar accounted for 90%, H2 accounted for 10%). If there is no such mixed gas, it can also be carried out with pure gas of N2 or Ar and H2 in proportion. Mix instead.

Application field of industrial glove box

  1. MOCVD technology in the semiconductor industry
  2. Development and production of special lamps (HID)
  3. Microelectronics, laser and plasma welding
  4. OLED/PLED development and production
  5. Development and production of lithium-ion batteries
  6. Inorganic/organic chemistry research
  7. Research on metal halide/metal powder/ceramic powder
  8. Nanomaterials research
  9. Catalyst research
  10. YAG laser welding

Uses of industrial glove boxes
Industrial glove box operations need to be isolated from the air for experiments. For example, metal lithium reacts with oxygen. Some reactions need to be carried out in an inert gas such as argon. Use an open (unshielded) radioactive source, protected with lead and lead glass. Protect experimenters from toxic chemicals. Industrial glove boxes are more completely insulated than fume hoods, but they are more inconvenient to operate. Industrial glove boxes are mainly used in situations where the toxicity is particularly strong. Conduct experiments that may cause serious biological hazards, such as virulent bacteria.

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