Refrigerator performance laboratory DMS

Six station refrigerator performance testing laboratory

+Eight workstations（4+4）Refrigerator Performance Testing Laboratory

(Three rooms) Refrigerator Performance Laboratory

Technical Solution

4

General matters

1. Overview: The refrigerator performance laboratory is mainly used for type testing and operating condition testing of refrigerators, providing stable and reliable environmental conditions. Can accommodate both at the same time6Taiwan500Refrigerators with a capacity of less than one liter (or4Conduct performance tests on refrigerators and other electrical and electrical products. Simultaneously equipped with explosion-proof devices using HC refrigerant. Its main technical conditions comply with national standards:GB8059.1～3-1995Zhongdi6.1.1～6.1.4The requirements andGB8059.4-93Zhongdi5.1～5.1.2Requirements and compliance with the new versionGB/T8059Requirements for (draft for approval). The system is equipped with semi-automatic working condition control, automatic measurement and recording, automatic printing of test reports, and the ability to analyze test results and data.

2. Responsibilities of Party A

（1）Interval engineering, air conditioning, and lighting engineering for measurement rooms and computer rooms

（2）Mechanical room ventilation and lighting engineering

（3）Primary side water supply and drainage piping engineering

（4）Primary side electrical engineering (please connect to the main circuit breaker of the power supply panel of this device)

（5）Subject matter

（6）Calibration instruments

（7）There are no recorded items in this quotation

（8）System measurement

3Quotation project

（1）Laboratory Room

（2）Refrigerator equipment

（3）Air conditioning equipment

（4）Control instruments and meters

（5）Measuring instruments

（6）CPUAnd software development

（7）Installation and transportation costs

（8）Design and debugging fees

（9）Power supply

4. Acceptance conditions

（1）The second party shall provide the first party with laboratory system drawings and data:

a.Layout plan.

b.Non standard equipment diagram.

c.Schematic diagram and wiring diagram of the measurement and control system.

d.Test system software backup and user manual.

e.Laboratory operation, maintenance, and repair manual.

f.User manual for purchased instruments and meters.

（2）The second party shall provide the first party with spare parts and a list of spare parts.

（3）The measurement test results meet the contract requirements:

a.Indoor environmental wind speed

b.Uniformity and fluctuation of temperature in the laboratory environment

c.Temperature gradient in the laboratory environment

d.Temperature and humidity regulation range and temperature rise and fall speed in the laboratory environment

e.The testing scope and accuracy indicators in the testing project

5Refrigerator Performance Laboratory Warranty

（1）The warranty period is after delivery12A month.

（2）During the warranty period, any malfunctions will be repaired free of charge. After the warranty period, lifelong paid repairs will be provided (only materials and travel expenses will be charged). When the equipment malfunctions,8Response within hours, if necessary,48Arrived within hours.

（3）During the warranty period,The repair costs incurred due to misoperation by the operators of Party A or force majeure shall be borne by Party A.

6Public works (Party A is responsible for)

(1) Power supply:3Φ5Ｗ380Ｖ60KVA

（2）Independent ground wire: grounding resistance≤4Ω

（3）Water supply: pipe connection diameterΦ20water pressure≥0.15MPaThe water quality is clean and free of impurities

（4）Drainage: Pipe connection diameterΦ100

**Chapter Device Overview

1、 Applicable regulations, specifications and standards

1GB8059.1~4-1995 and GB8059-**The requirements for laboratories in the new standard.

2The technical agreement signed by both parties.

3Both companies shall negotiate and handle matters without applicable specifications, construction standards, or special instructions.

4The illuminance meets the requirementsGB/T21001.2-2007Standard requirements

2、 Test project

（1）Storage temperature

（2）Cooling rate

（3）Power consumption

（4）Freezing capacity, cooling capacity

（5）Load temperature rise rate

（6）Voltage, current, power, power factor

（7）Condensation test

（8）Performance testing of air-cooled refrigerator

3、 Laboratory environmental conditions

（1）Temperature and humidity control range and accuracy: Dry bulb temperature:0～50℃±0.3℃relative humidity45～95％ＲＨ±3％ＲＨ （16℃Above)

（2）Temperature distribution: in accordance with GB standards

（3）Temperature fluctuation range: The specified ambient temperature should be maintained at each measuring point, and its fluctuation range should be within the specified range±0.5℃Within.

（4）Temperature gradient: from the ground2300mmWithin a high range, the vertical temperature gradient is10～45℃within the scope of≤0.90K/m, the rest≤1.5K/m(Divided into three levels, with a distance of: the lower level is above the ground)300mmMiddle to ground distance1000mmThe upper level is located above the ceiling650mm）.

（5）Wind speed: Wind speed in any direction at all specified measuring points≤0.20 m /s

（6）Heating and cooling speed: from10℃rise to50℃The time is less than120minute; from50℃drop to10℃The time is less than150minute

4、 Applicable power supply

Single phase70～250Ｖ50／60ＨＺ

5、 Measurement system accuracy

The measurement method shall be carried out in accordance with the requirements of the national standard,According to the requirements of GB8059.1-4

(1) Temperature

scope:－40℃～＋50℃precision:－40℃～+50℃：±0．3℃, other areas±1℃

(2) Accuracy of power consumption:±1.0％;resolution0.001ＫＷｈ

(3) Current

scope: 0～10Ａ 精度: ≤±0.5%Full-scale meter

(4) Voltage

scope: 0～300V accuracy: ≤±0.5%Full-scale meter

(5) Power

scope: 0～2KW accuracy: ≤±0．5%Full-scale meter

**Chapter: Using Equipment

1、 Laboratory

（1）Prefabricated panel assembly type, with top perforated panel for air supply and air return from the lower side of the air conditioning cabinet.

（2）External dimension D6500×Ｗ4200×Ｈ3300 Internal dimension D6300×Ｗ4000×Ｈ3100 Orifice plate to ground H2800

（3）Thermal insulation100Mm rigid polyurethane foam insulation

（4）The walls and ceilings are both inside and outside0.6mmColored steel plate0.6Mm aluminum alloy perforated plate ceiling

（5）Floor single room structure2.5Mm single-sided stainless steel100Mm rigid polyurethane foam insulation board combination; Twin Room100Mm rigid polyurethane foam insulation boardPVCBoard

（6）Double doorD(400+1200)×Ｈ2100 Each1A300ｍｍ×350Mm observation window (two-layer glass), anti condensation

（7）Lighting double tube fluorescent lamp40Ｗ～10Zhan Zhan（220V) Dual channel control

（8）Alarm for explosive gas leakage, automatic power-off, and explosion-proof function for starting the exhaust fan (this function is not available in the double room), as well as alarm functions for overheating, high and low pressure, water shortage, etc

（9）Prototype testing wooden platform: provided by Party A

2Adjust the unit again

（1）Aluminum alloy air conditioner+Spray coated sandwich panel1Multi blade fan with double inlet air cooler and copper tube with hydrophilic film aluminum evaporator heater22.5ＫＷ

（2）Air cooled compression condensing unit (imported fully enclosed head)2Taiwan model5HP*1+6HP*1To ensure that the refrigeration unit can operate normally in both summer and winter, ensure that the condenser area is large enough and the fan is automatically adjustable in speed

（3）Humidifier1Taiwan model shallow groove specification22.5ＫＷ

（4）Inverter (Mitsubishi)1Table typeFR－E740

3Universal machine

（1）Power and Measurement Cabinet1Platform type, steel plate, independent type

（2）Tested machine power box6A5

Type: Stainless steel plate hanging wall type. Each workstation has2Selection of power sources; In addition, the power socket of the testing station should have a European grounding method for easy testing.

（3）Thermocouple box6A type of stainless steel plate wall hanging type20ＣＨ

(4）Explosion proof systema.Sensors2A specificationR600A sensor

b.Fan1A domestically produced explosion-proof fan with a certain specification1000ｍ3／ｈ

c.Air door2A specificationΦ300Automatic switch

d.Pneumatic valve for air door control2A specification

e.Air compressor(0.5HP) 1Taiwan

Chapter 3 Temperature and Humidity Control

1Temperature and humidity measuring device (Qiano, Japan)1Set up

Model R221－30 Automatic water replenishment method

2Temperature and humidity regulator (island power)4Taiwan

Model numberSR93

Specification input platinum resistance accuracy±0.3%FS output4～20ｍＡC/ＤＣ

3．SCRPower regulator6A

Model numberSAM40100DSpecifications100Ａ

Chapter 4: Data Processing Devices

1Data Collector (Yokogawa)1Nested typeDA100Specifications120point+120Point data collection system

2Digital power meter (Yokogawa)6Taiwan6

Model numberWT210+Aino digital power meter8720

3Microcomputer and related devices

（1）Computer（HP(Provided by Party A)2Set specificationsP4 2GMemory, hard drive320G、17inchLCDPower supply AC220Ｖ50Ｈｚ

（2）Printer（HP）1Table specificationsA4Inkjet color printer power supply AC220Ｖ50Ｈｚ

（3）Variable frequency power supply 1 of the tested machine (Taiwan, China, ChinaAFC）2Taiwan model31020(Precision)1%Internal specification variable frequency power supply20K. 65334;A

（4）Variable frequency power supply 2 of the tested machine (Taiwan, China, ChinaAFC）2Taiwan model31010(Precision)1%Internal specification variable frequency power supply10K. 65334;A

Chapter 5 Software

VB on the Windows platform6.0Written with excellent human-machine dialogue function, flexible and convenient operation, capable of conducting experiments on different projects simultaneously at each station, and able to print reports and observe test data and partial curves at each station.

1Can be used for testing both direct cooling refrigerators and indirect cooling refrigerators, and can be tested simultaneously.

2You can enter or exit the testing of one or several refrigerators at any time without affecting the refrigerator being tested.

3Print the flow report or test report of one or several refrigerators at any time without any impact on the refrigerator being tested.

4Can display and print cooling curves.

5Add annotation function and layout diagram to each refrigerator. That is to say, for newly added refrigerators, the computer will provide prompts to enter the experimental purpose, refrigerator condition, and the location of each test point. At the end of the test, a conclusion will be required. When printing the test report, the experimental summary can be entered. The above items can be printed together when printing the flow report.

6.The background power or current for the on/off of the refrigerator can be manually set.7The test data of the refrigerator is stored in the hard drive. To prevent data loss, when retesting an existing numbered refrigerator, the computer will prompt twice:“The test data with this number already exists. If entering the test, all original data will be lost!”

Chapter 6 Other

1The electrical control cabinet and electrical wiring shall have long-term markings, be consistent with the drawings, and comply with relevant national standards.

2The equipment is powered by a three-phase five wire system. Reliable protection of personal safety. Equipped with leakage protection function (leakage action current)）Each refrigerator power switch is equipped with a leakage protection function.

3Add a power switch to the testing system, which can provide power of different frequencies to each station(Simultaneously including one mains power supply for each unit)

4The laboratory has a high-temperature protection device.

5The system can prevent the humidifier from burning out.

6It has overcurrent, leakage protection, and fuses.

7When the air conditioning unit is abnormal, it will interlock separately.

8Explosion proof system in the laboratory: Install 2 sensing probes in the room. The testing unit is placed outdoors to monitor whether the gas inside the laboratory exceeds the standard at any time. Alarm System Division2Level Control1Activate the sound alarm when the level alarm is triggered, and do not cut off the circuit at this time. When the concentration continues to increase, it reaches2When the alarm is triggered, the alarm will automatically open the air valve to start the exhaust system and cut off the laboratory power supply.

9Separate the signal line from the power line.

The refrigerator performance laboratory requires additional configuration

Other items that the customer needs to prepare include: computers, printers, computer desks and chairs, enclosure and partition projects, etc.

Specific construction schedule for refrigerator performance laboratory

1. After the contract is signed and payment is received, the design, external processing, and assembly (not at the customer's location) will be completed within about 45 days;

2After the contract is signed and becomes effective and payment is receivedComplete the procurement of imported instruments (mainly YOKOGAWA equipment) in about 45 days;

3After the contract is signed and becomes effective and payment is receivedAfter 60 days, complete preliminary debugging and ship to the location of the demand party; (The transportation time thereafter is approximately 5 days)

4After the goods arrive, personnel will be in place to install them, which may requireAbout 10-15 days;

5. Debugging, acceptance, and handover within 7-10 days after installation.

P．S：The specific construction time is our company's standard construction time, and the detailed construction schedule can be based on customer requirements.