Air conditioning enthalpy difference room

Air conditioning enthalpy difference roomOverview

This system has been carefully selected and composed of the world's most advanced equipment, reaching the international leading level

1.The refrigeration system is designed by international experts (using German grain wheels), with low energy consumption and stable and fast operating conditions

2.The temperature sensor uses world-class products and Qianye PT100

Yokogawa, Japan for pressure sensors

Regulating instrument for Yokogawa 550, Japan

3.The algorithm adopts the world's advanced algorithms, which are more scientific and advanced than Japan's Daisuke

4.Large screen TFT full-color LCD display,

ELO infrared touch screen control in the United States

5.The storage body is made of British ISOAU polyurethane storage board, which does not condense and has strong thermal insulation performance

6Fully automatic fuzzy working condition control, automatic stability judgment

7.Professional after-sales service, 24-hour service hotline

Please refer to the laboratory floor plan on the next page for detailed information

(If there are any differences between the written and the drawings, the floor plan shall prevail

5Technical agreement for enthalpy difference chamber

Basic requirements:

1， Summary

This enthalpy difference chamber uses the enthalpy difference method as the basic testing method for the cooling and heating capacity of air conditioning mechanisms. Provided a relatively complete and high-precision testing method for laboratories and factories, requiring thermocouples, computer automatic acquisition, display, and reliable operation Advanced manufacturing technology

2， Main equipment and engineering:

(1)Laboratory room structure (2) Compression condensing unit (3) Air reprocessing equipment

(4)Humidifier heater (5) Air volume testing device (6) Control cabinet

(7)Measurement instruments (8) Refrigeration system piping engineering (9) Water distribution system

(10)Electrical wiring (11) Cooling and water supply and drainage system (12) Computer system

3， Other equipment and engineering

(1)Condensed water removal (2) Laboratory lighting

(3)Standard machine (provided by Party A for calibrating this laboratory)

4， According to the standard:

(1)The system and experimental method are based on GB/T7725-96 "Room Air Conditioner" and GB/T17758-1999 "Unit Air Conditioner"

(2)Construction rules are based on relevant national standards for HVAC and plumbing engineering construction

5， Test project:

(1) Cooling capacity

(2)Cooling power consumption

(3)High temperature cooling capacity

(4)Heat pump heating capacity

(5)Heat pump consumes power

(6)Electric heating power consumption

(7)Low temperature, ultra-low temperature cooling capacity

(8)Maximum operating cooling

(9)Minimum operating refrigeration

(10) Maximum operating heating

(11) Minimum operation heating of heat pump

(12) Freezing experiment (air circulation, dripping water)

(13) Condensation experiment

(14) Discharge of condensate water

(15) Automatic defrosting

(16) Energy efficiency ratio

(17) Performance parameters

6， Technical conditions:

(1) Using standard machine calibration, the deviation is less than 2% compared to the national testing center under rated operating conditions.

(2) The repeatability deviation of the cooling capacity measured continuously for 5 times during one-time installation is less than 2%.

(3) The deviation of air volume measurement for 7 consecutive times during one-time installation is less than 2%.

(4) The system is of automatic control measurement type

(5) The system has overheat and water level protection, and the heating and humidification are interlocked with the operation of the fan

(6) The system has a fault display function

(7) In addition to normal testing experiments, the system has added thermocouple temperature measurement, 1-point compressor frequency measurement, and 2-point refrigerant pressure testing

(8) Compartment temperature control range: indoor side 10 ℃ -35 ℃, outdoor side -8 ℃ -55 ℃, control accuracy 0.2 ℃, measurement accuracy 0.1 ℃, temperature field control: within the range of 2300mm above the ground, the vertical temperature gradient within the range of -8 ℃ -55 ℃ is ≤ 0.5 ℃/m, and the rest is ≤ 1 ℃/m (divided into three layers, with distances of: lower layer 300mm from the ground; middle layer 1000mm from the ground; upper layer 650mm from the ceiling). Use an air sampler to sample the temperature of the tested machine

7， Venue requirements:

(1)Floor area: 10MX10M factory building net height>3.8M

(2)Power supply: 3-phase 5-wire 380V 50HZ 150KVA

(3)Water supply: 2T/H to the construction site

(4)Laboratory ground load: 0.5T/mm

1， Air conditioning enthalpy difference roomTechnical conditions:

(1) Using standard machine calibration, the deviation is less than 2% compared to the national testing center under rated operating conditions.

(2) The repeatability deviation of the cooling capacity measured continuously for 5 times during one-time installation is less than 2%.

(3) The deviation of air volume measurement for 7 consecutive times during one-time installation is less than 2%.

(4) The system is of automatic control measurement type

(5) The system has overheat and water level protection, and the heating and humidification are interlocked with the operation of the fan

(6) The system has a fault display function

(7) In addition to normal testing experiments, the system has added thermocouple temperature measurement, 1-point compressor frequency measurement, and 2-point refrigerant pressure testing

(8) Compartment temperature control range: indoor side 10 ℃ -35 ℃, outdoor side -8 ℃ -55 ℃, control accuracy 0.2 ℃, measurement accuracy 0.1 ℃, temperature field control: within the range of 2300mm above the ground, the vertical temperature gradient within the range of -8 ℃ -55 ℃ is ≤ 0.5 ℃/m, and the rest is ≤ 1 ℃/m (divided into three layers, with distances of: lower layer 300mm from the ground; middle layer 1000mm from the ground; upper layer 650mm from the ceiling). Use an air sampler to sample the temperature of the tested machine

2， Venue requirements:

(1)Floor area: 10MX10M factory building net height>3.8M

(2)Power supply: 3-phase 5-wire 380V 50HZ 150KVA

(3)Water supply: 2T/H to the construction site

(4)Laboratory ground load: 0.5T/mm