Lab Highly Efficient Six Ports Single Side Stainless Steel Vacuum Glove Box with Safety Grating

A. Acceptance criteria

Under the standard condition, that is, under the constant temperature of 20-25℃, the relative humidity of 65%, and the inert air source of 99.999%, the circulating water oxygen index of the empty tank body reaches less than 1ppm.

B. The main technical indicators and configuration

1. Box (front window can be opened)

1.1．Size：2440mm（L）×900mm（H）×850mm（W). It consists of two 1200-length glove boxes connected by flanges with detachable side panels.

1.2. Material: stainless steel structure (Type 304), thickness 3mm.

1.3.Filter: Aperture 0.3 micron, placed on the left panel 100mm away from the bottom (no filter at the bottom)

1.4. 6 butyl rubber gloves: original imported from the United States thickness 0.4mm, glove mouth 8 inches, hard aluminum alloy glove mouth (anti-corrosion treatment, anodized aluminum), diameter 220mm.

1.5. Window: Inclined design operating surface, lifting 8mm safety tempered glass front window, wear resistance, corrosion resistance, good light transmission, sealing ring with 3/8 inch thick OMEGA sealing ring.

1.6. Maintain a certain positive and negative pressure (-10mbar-10mbar) during use

1.7. The box is equipped with anti-reflection lighting energy-saving lamps, and the light is soft.

1.8. The box body is provided with a display board 2-layer shelf (Shelf size to be determined)

1.9. The box is equipped with a porous power terminal board (Power supply: 220V±10% 50Hz±10%)

1.10. The box can be configured with six standard KF-40 ports, four KF40 ports at the bottom and three standby ports on the right. The back is perforated according to the customer's drawing.

1.11. Leakage rate: ≤0.001vol%/h.

1.12. Steel structure bracket, including casters 950 mm high, installed with universal casters.

1.13. Two sets of safety grating are installed inside the box. Grating parameters: transmitter: SL2-25ZP2C-16C-E receiver: SL2-25ZP2C-16C-R

Minimum detection object: φ25mm opaque object

Optical axis spacing: 20mm

Detection range: 140-1580mm

Start time after power on: less than 2S

Response time: less than 60ms

Beam element: infrared LED

Connection mode: Connector connection

2. Transition chamber

2.1. Large and small transition chambers (left)

2.1.1. Shape: cylindrical (304 stainless steel), connected to the glove box, with shaft lock type large transition door, easy to operate.

2.1.2. Size: Diameter 360mm, length 600mm large transition chamber, piston door, transition cabin with sliding pallet; Small transition chamber, specifications: diameter 150mm, length 300mm, manual valve control pumping and replenishing.

2.1.3. Pallet: Freely movable extension (large transition chamber configuration)

2.1.4. Vacuum degree ≤1bar(Both large and small right transition chamber are required to be vacuumed and the vacuum value displayed)

3. Control system

3.1. Mode: Including self-diagnosis, power off self-start features, with pressure control and adaptive functions. Automatic control, cycle control, password protection, vacuum chamber control using LCD display. The unit is controlled by Siemens PLC touch screen.

3.2. Pressure control: Control the pressure of the box and the transition chamber at a certain set value.

a) The user can arbitrarily set the working pressure range between +12.5 and -12.5 mbar, and the PLC will automatically adjust the pressure of the box within the set range. The default value of the operating pressure range is -1 to +3 mbar.

b) When the box pressure is greater than 12 mbar, the PLC automatically opens the safety valve to relieve the pressure and protect the gloves, equipment and materials in the box.

c) Use the foot switch to fine-tune the tank pressure.

3.3. Foot pedal: can control the pressure of the glove box, easy operation.

4. Circulation system (including purification and regeneration system)

4.1. Germany BASF, United States UOP purification material, Germany Baode valve. The host system is integrated with modular design, automatic electronic control gas solenoid valve group, PLC control, circuit, circulating pump, purification, display integrated with an independent purifier, forming a compact and simple system.

4.2. Control: Water and oxygen are controlled at less than 1PPm

4.3. Adjustment device: through the PLC touch type adjustment (heating, evacuation, purification, regeneration) the whole process except 2.5 hours of ventilation without human monitoring.

4.4. Working gas: He.N2/ or Ar gas (gas cycle)

4.5. Circulating fan: 0-100m³ high speed variable frequency fan, microprocessor controlled, pressure tested stainless steel device.

4.6. Purification column: single purification column, imported purification material Germany BASF deoxygenation material 5kg, the United States UOP efficient water absorption material 5kg, extremely high life, to ensure that the user in the use of the product purification capacity long-term lasting. Water removal capacity 2.2kg oxygen absorption capacity 63L.

4.7. Purification valve: automatic electro-pneumatic valve.

4.8. Filter: High efficiency filter with HEPA standard 0.3 micron aperture filter.

4.9. Regeneration: used for purification system reuse, so that it is activated; Regeneration requires a mixture of helium /H2, nitrogen /H2, or argon /H2, with H2 accounting for 10%.

5. Display system.

Germany SIEMENS, unit control using Siemens PLC touch screen. Both Chinese and English can be switched.

6. Water analyzer, (imported from abroad) brand material: UK MICHELL

1) Measuring range: 0-1000ppm

2) Accuracy: ±1% ppm

3) Display: The output of the analyzer is connected to the PLC, the detection value is displayed on the touch screen, and the alarm value can be set.

4) Control: The gas circulation system can be controlled according to the user's setting to achieve cycle drop.

5) Environment: -10℃ -50 ℃

7. Oxygen analyzer, (imported from abroad) Brand material: AVCRAY

1) Measurement range can be set: 0-1000ppm

2) Environment: -10℃ -50 ℃

3) Accuracy: ±1% ppm

4) Installation position: The oxygen sensor is installed on the box, regardless of gas circulation or not, the oxygen sensor continuously detects the atmosphere in the box and shows the oxygen content in the glove box.

5) Sensor: electrochemical material battery, its advantages are zero accurate, small drift, to avoid other battery materials easy to be corroded; Low replacement cost (only oxygen battery replacement).

6) Display: The output of the analyzer is connected to the PLC, the detection value is displayed on the touch screen, and the alarm value can be set.

Control: The user can choose the automatic cycling function to maintain the oxygen content in the glove box within the user's specified range.

8. Vacuum system

Added vacuum pump start-stop time control. Vacuum pump selected British Edwards vacuum pump, model RV12, flow 12m3/h, limit vacuum 2x10-3 mbar. The transition chamber can be vacuumed separately and can be controlled separately at any time. (imported from abroad)

9. Automatic cleaning of the box

Automatic gas control plating plate; The user sets the cleaning time, and then touch the start button on the touch screen, the system will start cleaning the box, and automatically stop at the set time.

10. Organic solvent adsorption system

In order to prevent the influence of organic solvents on the purification column, a solvent column is connected in series to the glove box system, and the medium is mainly high-quality and efficient activated carbon and activated alumina to prevent the formation of hydrofluoric acid. The organic solvent adsorption system is filled with 7KG, and there is a KF40 interface on the top and bottom of the column, which is convenient for refueling, and the user can refueling by himself.

11. Equipment working conditions: (provided by the user)

1.0. Power supply: two-phase three-wire AC220V, power ≥1Kw;

1.1. The laboratory should have an independent ground wire: < 3Ω, from the equipment to the ground wire connection is recommended to use ≥10mm2 flat copper wire;

1.2. Water supply: None;

1.3. Relative humidity: < 75%;

1.4. No large amount of dust, no corrosive, flammable and explosive gas in the room;

1.5. Equipment floor area: length × width :3200mm× 1200mm

Package size: (L)3.4*(W)1.2*(H)2.1m

Weight with package:880kg

C. Main configuration