High-low temperature laboratory, constant temperature and humidity room, walk-in laboratory design

High-low temperature laboratory, constant temperature and humidity room, walk-in laboratory design

product name

Walk-in constant temperature and humidity test chamber

Product number

HG-BW-018

Sample limit

This test equipment prohibits the test of flammable, explosive, volatile substance samples and the test or storage of corrosive substance samples, biological samples, and strong electromagnetic emission source samples.

Volume, size and weight

Content

custom made   

Test room size

4300MM × 4650MM × 2200MM (Deep × width × height) can be customized according to demand

Performance

Functional requirements

1, (air) indoor space cooling, heating, humidification, dehumidification; according to temperature, humidity settings, indoor space to set the temperature, humidity;

2, to provide independent cooling water device;

3. Each function must work independently.

Test environmental conditions

Ambient temperature +25°C, relative humidity ≤85%, no test sample in the test chamber

Test Methods

GB / T 5170.5-1996 electric and electronic products environmental testing equipment basic parameters of test equipment damp heat test method

â–²Temperature range

20°C— +25°C

â–²Humidity range

25 %RH-90%RH

Temperature and humidity curve

â–²Temperature uniformity

When there is blowing, it is ≤± 2°C. (In the working area test, the work area is at a distance of 300 mm from the four sides and the top and bottom walls, and the temperature uniformity is not guaranteed when there is no blowing in the box.)

â–² humidity uniformity

≤± 2.5% when there is a blast (in the working area, the working area is the area of ​​300 mm from the four sides and the top and bottom walls of the work area. If there is no blast, the humidity uniformity is not guaranteed and the humidity cannot be measured.)

â–² warm up time

+0°C～+50°C ≤65min

Note: The heating time is the performance of no-load operation in high-temperature room

â–²Cooling time

+20°C → -40°C≤60min

Non-linear

Satisfy the test standard

1. GB/T10589-1989 cryogenic test chamber technical conditions;

2.GB/T10586-1989 hot and humid test chamber technical conditions;

3.GB/T10592-1989 high and low temperature test box technical conditions;

4. GB2423.1-89 low temperature test Aa, Ab;

5. GB2423.3-93 (IEC68-2-3) constant heat test Ca;

6.MIL-STD810D method 502.2 ;

7.GB/T2423.4-93 (MIL-STD810) method 507.2 procedure 3 ;

8.GJB150.9-8 Damp heat test;

9. GB2423.34-86, MIL-STD883C method 1004.2 temperature and humidity combined cycle test.

Structure

Thermal insulation structure

External materials: High-quality carbon steel plates with electrostatic color spray treatment on the surface. (Cold-rolled steel plate t0.5mm (standard color) (cold-rolled steel plate t0.5+ polyamine standard insulation board)

Internal Materials: Wall Plate , Top Plate Stainless Steel Plate (SUS304)

Base plate Stainless steel plate (SUS304)

Observation window: A 300×450cm electric-thermal-membrane moisture-proof temperature-observation observation window (with glass cover) is opened on the door of the box.

Insulation material: high temperature resistant hard polyurethane foam (T100mm).

Cable hole: box cable hole, diameter Ф50 and equipped with a sealed soft plug.

Air conditioning channel

Fans, heaters, evaporators, dampers, temperature sensors

Test chamber door

Single open

Circulation fan

Centrifugal

control panel

Controller display , fault indicator, timer, over-temperature protection setter, total power switch

Machinery room

Refrigeration unit, connection and drainage device, exhaust fan

Distribution control cabinet

Main power leakage circuit breaker, controller, distribution board, cooling fan, high and low temperature circulation fan motor

Heater

Nickel-chromium alloy heating wire heater

Heater control mode: no contact and other periodic pulse width adjustment, SSR (solid state relay)

Power line hole and drain hole

Located on the back of the test chamber body

Laboratory appearance

(See picture)

Cooling System

Way of working

Adopts the leading domestic mechanical compression binary refrigeration technology

â–²Refrigeration compressor

Imported compressor

Evaporator

Finned tube heat exchanger

Condenser

Coil heat exchanger

Throttling device

Thermal expansion valve, capillary

Evaporative condenser

Stainless steel brazed plate heat exchanger

Refrigerator control method

The control system's PLC (Programmable Logic Controller) automatically adjusts the operating conditions of the chiller based on the test conditions

Compressor return air cooling circuit

Energy regulation circuit

Condensate pressure regulator

Refrigerant

Environmental protection refrigerants with zero ozone depletion index

Cooling System

Compressor cooling, cooling system to increase the plate for cooling, plate replacement provided by the purchaser; hot side of the laboratory cooling system electromagnetic cutting, controlled by the switch on the control panel off, cold side users have other uses, and look forward to communicating with the user How much heat.

other

Compressor cooling fan

Cooling water Filter

Electric control system

Controller model

LCD touch programmable color controller

Features

Independent research and development of dedicated controllers for cooling inverter technology.

(In view of considering that the purchaser can not provide other special experimental conditions in detail due to different experimental needs, the equipment has secondary development functions; it can provide PLC control technical support and development services.)

monitor

Color display

Operation mode

Program mode

Setting method

Chinese menu, touch screen mode input

Program capacity

100 programs. Maximum 1000 steps per program; 9999 cycles per program

Predetermined area

Temperature limit +200°C; Temperature limit -99°C (controller)

display resolution

Temperature: 0.1°C

Time: 0.1min

enter

PT100

Communication function

RS-232C

control method

Anti-integral saturation PID, fuzzy algorithm

BTHC Balanced Temperature and Humidity Control

Curve recording function

Save device sampling values ​​and sampling time

Affiliated functions

Fault alarm and cause, processing prompt function, fault record, over-temperature protection, upper and lower limit temperature protection, power failure protection, sensor up/down wind selection, test pause, alarm output, time signal output, test end output, temperature reach output, timing start And automatic stop function, self-diagnosis function

Software use environment

(user provided)

IBM PC compatible, PII and above CPU, 128M or more memory, Simplified Chinese Windows2000 or Simplified Chinese Windows XP operating system

Temperature and humidity measurement

PT100 platinum resistance

Safety protection device

Cooling System

Compressor overpressure

Overheated compressor

Compressor overcurrent

Circulating cooling water supply under pressure

Laboratory

Laboratory temperature is too high, too low protection (controller built-in)

Laboratory temperature too high protection

Laboratory door protection

other

Total power phase sequence and phase loss protection relay

Earth leakage circuit breaker, sample power supply control terminal, external alarm output terminal

Over-temperature protection switch

Circulation fan thermal relay, motor temperature switch

Compressed air pressure switch, exhaust valve

Other configuration

Power cable

Total power leakage circuit breaker

Five-wire (four-core cable + protective grounding cable) 1 cable (4 meters long)

AC380V, 50Hz

Three-phase four-wire + protection ground

transport

The test room is assembled by library board and split transport (steam transport)

Conditions of Use

The user guarantees the following conditions

Environmental conditions

Temperature: 5°C～35°C

Relative humidity: ≤85%

Circulating cooling water

(water temperature, water pressure)

Recirculating cooling water temperature: ≤ +30 °C

Recirculating cooling water supply pressure: 0.25MPa ~ 0.4MPa 　　

The design and construction of the cooling water piping system shall ensure that the pressure at the inlet of the refrigerator at the rated flow is 0.25MPa to 0.4MPa , and the pressure drop at the outlet of the refrigerator to the cooling tower is not more than 0.05MPa.

flow

7t/h

Hose fittings and other

One pair of DN40 threaded joints for refrigeration unit

In accordance with GB 50050-1995 industrial circulating cooling water treatment design specification

It is recommended to install an electrostatic water processor (scale removal, algae removal) on the waterway.

Supply conditions and power

AC380V    Three-phase four-wire + protection ground

Voltage allowable fluctuation range: AC (380± 38 )V

Allowable frequency fluctuation range: (50 ± 0.5 ) Hz

The grounding resistance of the protective ground is less than 4Ω; the TN-S mode power supply or the TT mode power supply

Users are required to configure the air or power switch of the corresponding capacity on the installation site. This switch must be used independently for this equipment.

Maximum power

45KW

Requirements for the storage environment

When the equipment is not working, the temperature of the environment should be kept within 0°C～+45 °C

When the ambient temperature is lower than 0°C, the water remaining in the equipment should be drained.

In order to prevent the water inside the pipe from freezing, the pipe may get worse.

　　　 (Note: If there is any deviation from the plus item in the above equipment , the bidder shall indicate and indicate in the bid document, and the corresponding score will be deducted in the score. The reference brand in the demand is for reference only, and the bidder can provide better than the reference brand. Technical parameters of the brand.)