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Gas heater comprehensive performance testing equipment (computer type)

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Gas heater comprehensive performance testing equipment (computer type)

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Standards:

Applications:

Product Information:

This equipment is designed based on an advanced control concept, integrating precision components, a computer system, and data acquisition control for automatic calculation and processing. It is mainly used for performance testing of gas-fired heating boilers and gas instantaneous water heaters.This testing system is manufactured in accordance with the requirements of national standards GB 25034-2010 and GB 6932-2011. and it is capable of testing both gas-fired heating boilers and gas water heaters.

Technical parameter

Parameter

Specification

1

Rated working voltage: 220V ~ 50Hz

2

Operating voltage range: 187 ~ 240V

3

Working environment temperature: 5–40°C

4

Voltage regulation: 0 ~ 250V

5

Water flow regulation: 0 ~ 60 L/min

6

Water pressure control range: 0 to 0.56MPa

7

Gas flow rate: 0.1–6 cubic meters/hour

8

Gas pressure regulation: 0–5KPa

9

Water temperature test: 0–120°C

10

Gas temperature test: 0 ~ 50°C

11

Atmospheric pressure: 80 ~ 110KPA

12

Gas humidity: RH0–99%

Technical parameters and accuracy:

Parameter

Specification

Accuracy

1

Gas flow: 1–100 L/min

10.5 (note: unit unclear, possibly % or scale)

2

Gas primary pressure: 0–10 kPa

0.25 level

3

Gas secondary pressure: 0–5 kPa

0.25 level

4

Gas flowmeter pressure: 0–5 kPa

0.5 grade

5

Bathroom water flow: 0–30 L/min

1 level

6

Heating water flow: 0–60 L/min

1 level

7

Heating water temperature: 0–120°C

±0.3°C

8

Heating return water temperature: 0–120°C

±0.3°C

9

Sanitary water inlet temperature: 0–60°C

±0.3°C

10

Bathroom outlet temperature: 0–120°C

±0.3°C

11

Gas temperature: 0–50°C

0.5 grade

12

Cooling water outlet temperature: 0–120°C

±0.2°C

13

Sanitary water inlet pressure: 0–1.0 MPa

±0.001 MPa

14

Heating return water pressure: 0–0.6 MPa

0.5 grade

15

Heating water pressure: 0–1.0 MPa

0.5 grade

16

Machine working voltage: 0–300 V

0.5 grade

17

Machine working current: 0–10 A

0.5 grade

18

Machine power: 0–3 kW

0.5 grade

Testing Functions

1. Heating Furnace Heating System Test

Serial No.

Inspection Item

1

Maximum hot water outlet temperature

2

Minimum start-up temperature

3

Heating thermal efficiency

4

Rated heat input

5

Heating rated heat input, or maximum/minimum heat input and accuracy

6

Heating rated heat output

7

Safety valve pressure relief protection

8

Heating water circuit sealing test

2. Domestic Hot Water System Test

1

Thermal efficiency (hot water mode thermal efficiency under rated load)

2

Hot water production rate

3

Rated heat load

4

Temperature rise after water shutdown

5

Heating time

6

Hot water temperature stabilization time

7

Start-up water flow rate

8

Start-up water pressure

9

Overheating test, water flow overshoot test

10

Water temperature display accuracy

11

Shutdown water flow rate

12

Water circuit sealing test

3. Other Functions

1

Heating heat input (rated heat input, maximum heat input, minimum heat input, ignition heat input)

2

Ignition performance

3

Water pressure regulation

4

Heating performance test (regulation accuracy of heating heat input, heating heat output)

5

Heating thermal efficiency test (heating efficiency at rated heat input, heating efficiency under partial load)

6

Combustion condition test

7

Water flow rate test

8

Gas flow rate test

9

Gas pressure adjustment

10

Water inlet temperature display of water heater

11

Water outlet temperature display of water heater

12

Heating outlet water temperature display

13

Heating return water temperature display

14

Water heater inlet/outlet system configuration display

15

Pipeline pressure display

16

Primary gas pressure display

17

Secondary gas pressure display

18

Gas pipeline flame leakage test

19

Pipeline water blowing (adjustable pressure)

Functional Requirements and Testing Methods:

Operating Condition Monitoring

Able to monitor and record various operating condition data.

Gas Flow Rate

Gas flow rate can be displayed, and acquired data can be stored.

Water Flow Rate

Water flow rate can be displayed, and acquired data can be stored.

Water Circuit Pressure

Water circuit pressure can be displayed, and acquired data can be stored.

Primary and Secondary Gas Pressure

Gas pressure (primary and secondary) can be displayed, and acquired data can be stored.

Inlet and Outlet Water Temperature

Inlet and outlet water temperatures can be displayed, and acquired data can be stored.

Ambient Temperature

Ambient temperature can be displayed, and acquired data can be stored.

Gas Temperature

Gas temperature can be displayed, and acquired data can be stored.

Data Storage Function

All collected data can be saved as local files, facilitating data extraction, editing, and analysis.

Automatic Data Acquisition and Calculation

The system supports automatic data acquisition and calculation after the equipment is properly connected.

Testing Requirements

Testing Process

Step 1: Set the instrument parameters, configure the automatic test process, and select the gas type.

Step 2: Hang the appliance in position, connect water, electricity, gas, and the secondary pressure testing interface, then start the testing program.

Step 3: Ignite the equipment; the software automatically performs detection and data calculation.

Structure and Composition of Testing Equipment

1. Water Test System

Used for testing water pressure, water flow rate, and displaying measurement data：

This system is composed of a water filter, water pressure regulating valve, precision digital flowmeter transmitter, check valve, shock-resistant pressure gauge, solenoid valve, union joint, ferrule connection fittings, tee, straight connector, flexible and rigid pipes, and other components.

2. Gas Test System

Used for testing gas pressure, gas flow rate, and displaying measurement data. It provides normal pressure and start-up water pressure display, and is divided into high-pressure and low-pressure display with supporting high-pressure shock-resistant gauges.

This system is composed of a gas pressure regulating valve, precision digital gas flowmeter, pressure transmitter, humidity and temperature transmitter, manual ball valve, union joint, ferrule connection fittings, tee, straight connector, flexible and rigid pipes, and other components. The test bench is equipped with an open flame test gun.

3. Compressed Air Water Blowing System

This system is used for water blowing operation and is connected to compressed air. It includes a pressure regulating valve to adjust compressed air pressure (0–0.5 MPa), and a matching pressure gauge for pressure display.

The system consists of a check valve, air filter, air pressure regulating valve, solenoid valve, manual ball valve, union joint, ferrule connection fittings, tee, straight connector, flexible and rigid pipes, and other components.

4. Test Bench Main Frame System

Used for connecting the main test bench with the water test system, gas test system, compressed air water blowing system, and other subsystems.

This system consists of a stainless-steel main test bench, auxiliary supports, various instrument mounting brackets, and accessories such as union joints, ferrule fittings, tees, straight connectors, flexible and rigid pipes, etc.

5.Electrical Control System

This system is used to realize the testing and control functions of the water test system, gas test system, and compressed air water blowing system of the testing equipment.

The system adopts a touch screen for operation control, a high-speed PLC for system control, and a high-precision analog-to-digital circuit for data acquisition.

This system is composed of a touch screen, PLC, data acquisition module, high-precision temperature probes, control circuit boards, circuit breakers, switches, indicator lights, leakage protection device, double-pole switch, three-hole and two-hole sockets, rubber wires, control cables, electrical rails, and other accessories.

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