Three box thermal shock test chamber

Serial number:

20131023001

Date:

2014-10-23

Unit Name:

:

:

:

project

instrument

the number of pages:

5

Product Name

Model

unit price

Delivery time

Three box thermal shock test chamber

DZCJ-150L， Large and medium-sized instruments

1、 Main technical indicators:

1. Inner box size:500×600500mm（H×W×D）

2. Outer box size: approximately1950×1700×2100mm（H×W×D）

3. Machine weight: approximately 600KG

4. Preheating temperature range:+60 ℃~180 ℃;

5. Heating time:+60 ℃~180 ℃ ≤ 30 minutes;

6. Pre cooling temperature range:-70～-10℃；

7. Cooling time:+20 ℃~-70℃≤90min； (Note: The cooling time refers to the performance when the low-temperature chamber is operated separately.)

8. Test method: Pneumatic damper switches to 3 temperature zones;

9. Temperature shock range: (+60 ℃~+150 ℃)/(-40℃～-10℃）

10. Temperature fluctuation: ± 0.5 ℃

11. Temperature deviation: ± 2.0 ℃

12. Temperature recovery time: ≤ 3-5 minutes (5KG plastic load)

13. Sample restriction: This experimental equipment prohibits the testing or storage of samples containing flammable, explosive, or volatile substances; Testing or storage of corrosive substance samples; Testing or storage of biological samples; Testing or storage of strong electromagnetic emission source samples.

2、 Box structure and materials:

1. Outer box material: stainless steel plate SUS # 304;

2. Inner box material: stainless steel plate SUS # 304;

3. Box insulation material: rigid polyurethane foam+glass fiber;

4. Door insulation material: rigid polyurethane foam

5. Air conditioning channels: fan, heater, evaporator, damper, temperature sensor;

6. Standard configuration: 2 sample compartment racks, 4 adjustment feet, 6 adjustment wheels, and 1 power cord (3 meters);

3、 Refrigeration system:

1. Working mode: Mechanical compression binary cascade refrigeration method;

2. Refrigeration compressor: originalTaikang, Francecompressortwo units；

3. Evaporator: finned tube heat exchanger;

4. Condenser: jacketed heat exchanger;

5. Throttle device: thermal expansion, capillary tube;

6. Evaporative condenser: stainless steel brazed plate heat exchanger;

7. Control mode of refrigeration machine: The PLC (programmable logic controller) of the control system automatically adjusts the operating conditions of the refrigeration machine and the compressor return air cooling circuit and energy regulation circuit according to the test conditions.

8. Refrigerant: R404A/R23 (with an ozone depletion index of 0)

9. Other: Compressor cooling fan (optional according to compressor model size)

4、 Heating and air circulation system:

1. Adopting a multi blade centrifugal circulating fan with reinforced shaft and high and low temperature resistant rotating blades made of aluminum alloy to achieve forced convection;

2. High temperature/ambient temperature exposure fan: 3 Φ, 400W centrifugal type; Low temperature exposure fan: 3 Φ, 400W centrifugal type;

3. Nickel chromium alloy electric wire heater;

4. Heater control method: contactless equal period pulse width modulation, SSR (solid-state relay)

5、 Electrical control system:

1. Display: Adopting original color touch screen microcomputer large LCD Chinese and English display.

2. Operation mode: Program mode.

(1) Control the exposure temperature of the experimental area of the controlled object

Preheating temperature in the high-temperature constant temperature zone

Pre cooling temperature in low-temperature constant temperature zone

Defrosting temperature in low-temperature constant temperature zone

(2) Indication accuracy 0.1 ℃

(3) Input thermocouple T DIN

(4) Control method: microcomputer PID+SSR control

3. Setting method: Chinese menu, touch screen input.

4. Program capacity: 1000 sets of programs, with each program being the largest by 3 steps; Each program can have 2000 cycles, with the maximum cycle set at 9999 cycles;

5. Setting range:

Temperature shock upper limit+155 ℃; Lower limit of temperature shock:-40℃

6. Display resolution: Temperature: 0.1 ℃ Time: 0.1min;

7. Communication function: RS-232 interface,

8. Control method: anti integral saturation PID, fuzzy algorithm; BTC balanced temperature control method;

9. Auxiliary functions: fault alarm and cause, processing prompt function, fault record, over temperature protection, upper and lower temperature protection, power-off protection, test pause, alarm output, test end output, temperature reaching output, timed start and automatic stop function, self diagnosis function;

6、 Safety protection device:

1. Compressor overpressure;

2. Compressor overheating;

3. Compressor overcurrent;

4. Circulating cooling water supply

7. Main power phase sequence and phase loss protection relay, residual current circuit breaker

8. High/low temperature room over temperature protection switch, high/low temperature room over temperature protection

9. Thermal relay and motor temperature protection for circulating fans;

10. Compressed air pressure switch and exhaust valve;

7、 Equipment usage conditions:

1. The ground is flat and well ventilated;

2. There is no strong vibration around the equipment;

3. There is no strong electromagnetic field around the equipment;

4. There are no flammable, explosive, corrosive substances or dust around the equipment;

5. There is a drainage floor drain near the equipment;

6. Ground bearing capacity of the venue: not less than 800kg/㎡;

7. Environmental conditions: Temperature: 5 ℃~35 ℃; Relative humidity: ≤ 85%; Air pressure: 86kpa to 106kpa;

8. Cooling water temperature: circulating cooling water temperature: ≤+30 ℃;

9. Cooling water pressure: circulating cooling water supply pressure: 0.25MPa~0.4MPa; The design and construction of the cooling water pipeline system should ensure that the inlet pressure of the refrigeration machine is 0.25MPa to 0.4MPa at the rated flow rate; The pressure drop from the outlet of the refrigeration machine to the cooling water tower shall not exceed 0.05 MPa;

10. Flow rate: 7t/h (if using circulating chilled water from the air conditioning system, please specify in advance);

11. Air source (compressed air): pressure: (5-7) kg/c ㎡; Diameter of connecting pipe: Φ 8mm; Flow rate: 0.1 cubic/min;

12. Requirements for storage environment: When the equipment is not working, the temperature of the environment should be kept within 0 ℃ to+45 ℃. When the ambient temperature is below 0 ℃, the water remaining in the equipment should be discharged completely to prevent the water in the pipeline from freezing and damaging the pipeline.

8、 Equipment power supply conditions:

1. Power supply voltage: 380V AC (± 10%), single-phase wire+protective ground wire, grounding resistance ≤ 4 Ω;

2. Frequency: 50 ± 0.5Hz

3. Power switch: Air switch (100A prohibits the use of knife switches or power sockets);

5. Require users to configure corresponding capacity air or power switches for the equipment at the installation site, and this switch must be used independently for the equipment;

6. Power capacity: 35kw maximum current: 80A

9、 Meet the test standards:

1. GB/T 2423.1-2001 Test A: Low temperature test method;

2. GB/T 2423.2-2001 Test B: High temperature test method;

3. GB/T2423.22-2002 Test N: Temperature Change Test Method

4. GJB/150.3-1986 High temperature test

5. GJB/150.4-1986 Low temperature test

6. GJB/150.5-1986 Temperature Shock Test

10、 Excluded items from quotation:

1. Preparation and construction of transportation and installation sites

2. Compressed air piping construction

3. Water supply and drainage construction

90000

25sky