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Low temperature cold trap/capture pump


Capture water vapor and harmful gases emitted from vacuum drying boxes or vacuum concentration devices, improve the efficiency of the vacuum system, significantly reduce the steam intake of the vacuum pump, and extend the service life of the vacuum pump.

Keyword:

LED

Category:

Cryogenic Refrigeration Unit

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Low temperature cold trap/capture pump

  • DESCRIPTION
  • Main features
  • Model
  • Application
  • Main production:

    (Fast circulating water vapor cryogenic pump, ultra-low temperature capture pump, ultra-low temperature cold trap, -100°C ultra-low temperature freezer, ultra-low temperature capture pump, ultra-low temperature cold trap, -100°C ultra-low temperature freezer, -100°C ultra-low temperature freezer, vacuum coated cold trap, ultra-low temperature condensing exhaust machine, vacuum coated cold trap, ultra-low temperature condensing exhaust machine, -135 °C water vapor trap, cryogenic equipment, °C water vapor trap, cryogenic equipment, –60 °C, °C, –86 °C, °C, –120 °C, -150 °C series ultra-low temperature freezer, °C, -135°C series ultra-low temperature freezer, –135°C metal cryogenic treatment box, ultra-low temperature liquid bath, °C metal cryogenic treatment box, ultra-low temperature liquid bath, –120°C to °C to –135°C ultra-low temperature refrigeration unit, °C ultra-low temperature refrigeration unit, –120°C to °C to –135°C ultra-low temperature heat sink test unit. °C ultra-low temperature heat sink test unit.

    The -145°C cryogenic water vapor freezer developed and produced by the company adopts a single compressor, automatic cascade refrigeration method, imported brand-name compressor and refrigeration accessories, and environmentally friendly hybrid refrigerant production, replacing liquid nitrogen and saving costs. It has the characteristics of fast refrigeration speed, high efficiency, low temperature and convenient maintenance, and its performance indicators are in a leading position, reaching or even exceeding the international advanced level. More than 40% energy saving than similar domestic products.

    Products are widely used in vacuum coating, surface treatment, optoelectronics, aerospace, quartz crystals, solar collectors, scientific research institutes, biopharmaceutical, chemical, electronic industry, metal processing and other industries.

    Application principle of cold trap (-45°C~-135°C):

    There are certain residual gases in the high vacuum environment using oil diffusion pumps, more than 80% are water vapor, oil vapor and other high boiling point steam, but its ability to extract residual gases is low, long time, and the residual gas is also a source of pollution of the workpiece, so that the output and quality of the product are affected, ultra-low temperature capture pump is the best choice to solve the problem.

    There are certain residual gases in the high vacuum environment using oil diffusion pumps, more than 80% are water vapor, oil vapor and other high boiling point steam, but its ability to extract residual gas is low, the time is long, and the working principle of the residual water vapor capture pump: a refrigeration coil that can reach below -130 °C is placed in the vacuum chamber or the pump port of the oil diffusion pump, and the residual gas of the vacuum system is quickly captured through the low-temperature condensation effect on its surface. As a result, the evacuation time can be greatly shortened (60-90% of the pumping time can be shortened) and a clean vacuum environment is obtained (the vacuum degree can be increased by half an order of magnitude, reaching 10-8Torr, 10ˉ5Pa).

    The working principle of the water vapor capture pump: a refrigeration coil that can reach below -130 °C is placed in the vacuum chamber or the pump port of the oil diffusion pump to quickly capture the residual gas of the vacuum system through the low-temperature condensation effect on its surface. As a result, the evacuation time can be greatly shortened (60-90% of the pumping time can be shortened) and a clean vacuum environment is obtained (the vacuum degree can be increased by half an order of magnitude, reaching 10-8Torr, 10ˉ5Pa).
    Production volume requirements of each customer. There are differences in product temperature requirements and site size and location, and we will provide them according to your special needs. Design the perfect solution. Special quick-freezing can be tailored according to various materials and production process characteristics. Refrigeration equipment, according to the customer's actual production of different working conditions for temperature point demand, targeted to adopt the optimal combination of freezing. The cooling method to achieve the expected production process requirements is our company's unique advantage. Our company can design targeted freezing according to the different needs of users. Cooling scheme. The temperature from -30 °C ~ -120 °C can meet the food. Chemical, pharmaceutical, electronic. The demand for low temperatures in different aviation industries. And to provide users with planning, engineering design, construction, installation, equipment production and maintenance integration services. The project content includes: refrigeration system, automatic control system, electrical control, pipeline insulation, installation and other projects turnkey projects.

    Concentrate:

    1. Can shorten the pumping time of 30%~80% 2. Can improve production capacity by 30%~100%

    3. It can be quickly cooled and reheated, and can be recycled for a long time

    4. Dual-way load can be designed, and installed in the vacuum chamber and oil diffusion pump port at the same time

    5. There is no need to use expensive liquid nitrogen, which can quickly recover the cost

    6. Siemens PLC+ touch screen control is adopted, and the control is accurate

    7. It can be flexibly installed on the existing vacuum coating system, and the installation is simple, not affected by joints, intake pipes and valves

    8. The system is stable, easy to operate and easy to maintain

  • Cold trap (-45°C~-135°C) use characteristics:

    Capture the water vapor and harmful gases discharged from the vacuum drying box or vacuum concentration device, improve the efficiency of the vacuum system, greatly reduce the steam intake amount of the vacuum pump, and extend the service life of the vacuum pump.

    1. The temperature display of the cold trap is convenient to control the starting time of the vacuum pump and prevent the water in the piping from being pumped into the pump.

    2. The cold trap tank is made of SUS 304 stainless steel, which can be used for aqueous and ethanol-based experiments, and can be applied to acid-based and organic solvent-based experiments after being equipped with a glass condenser.

    3. It can be used as a pre-freezing tank and a low-temperature tank.

    4. Equipped with drain valve to facilitate drainage.

    5. Ultra-low temperature cold trap, ultra-low temperature capture pump, vacuum coating freezer, cascade low temperature freezer can provide 0 °C ~ -135 °C cryogenic liquid cooling source-, ultra-low temperature capture pump, refrigeration unit compressor adopts German BITZER Bitzer, American Copeland Copeland, and other brands; Imported semi-hermetic screw compressor or fully hermetic scroll compressor as the refrigeration host, the main components are Danfoss, ALCO, American merson and other international well-known brands; It has stable performance, energy saving and high efficiency. Ultra-low temperature trap pump. Vacuum coating freezer, low-temperature cascade low-temperature freezing unit adopts advanced PLC and microcomputer control system, which has the characteristics of stable performance, safety and reliability.

  • Model

    Unit

    RXLG-140-500

    RXLG-140-700

    RXLG-140-1000

    RXLG-140-1200

    RXLG-140-1500

    Cooling capacity

    In

    500

    1200

    1850

    2600

    3500

    Compressor power

    KW

    4.5

    6.3

    7.5

    10

    12.2

    Refrigeration temperature

    -120℃~-145℃

    Pumping speed

    L/sec

    55000

    74000

    105000

    150000

    256000

    Maximum operating pressure

    dry

    5x10-8

    1.5x10-8

    1.5x10-8

    5x10-9

    1.5x10-9

    Refrigeration pipe surface area

    0.4

    0.55

    0.8

    1.1

    2

    Refrigeration pipe length and outer diameter

    m ,mm

    12m, 10mm

    14m, 12.7mm

    16m, 16mm

    22,16mm

    40m,16mm

    Connection pipe length and outer diameter

    Air intake (m, mm)

    3 m,6mm

    3 m,6mm

    3 m,6mm

    3 m,8mm

    3 m,8mm

    Return air (m, mm)

    3 m,8mm

    3 m,8mm

    3 m,10mm

    3 m,12.7mm

    3 m,12.7mm

    Cooling water flow

    15℃

    L/min

    5

    7.5

    15

    20

    20

    25℃

    12

    17

    30

    35

    35

    30℃

    20

    28

    55

    60

    60

    Cooling water pipe diameter

     in

     1/2

     3/4

    Rated voltage, current

    IN ,A

    380VAC,3PH50/60Hz,5A

    380VAC,3PH50/60Hz,7A

    380VAC,3PH50/60Hz,10A

    380VAC,3PH50/60Hz,12A

    380VAC,3PH50/60Hz,15A

    Pre-cooling time

     min

      ≤30

    ≤30

       ≤30

       ≤35

       ≤35

    Cooling time

     min

      ≤4

       ≤4

       ≤5

       ≤5

       ≤7

    Defrost time

    min

      ≤2

       ≤2

       ≤2

       ≤3

       ≤3

    Refrigeration time

     min

      ≤4

       ≤4 

       ≤5

       ≤5

       ≤6

    Oil distribution expansion pump caliber

    mm

      ≤500

       ≤800

       ≤1000

    Dual or multi-way cooling is possible

    Dual or multi-way cooling is possible

    With vacuum chamber diameter

    mm

      ≤1000

       ≤1400

    ≤1600

    ≤1800

    ≤2200

     

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