GB/T 39773-2021Energy consumption test technical regulation for flat glass manufacturing (English PDF)

5.2.4 Test methods and data processing

5.2.4.1 Test method

The energy consumption test and calculation method of the kiln system are carried out in accordance with the regulations of JC/T 488. Electric energy consumption test is in accordance with Appendix C get on.

5.2.4.2 Data processing

According to the 72h test results for energy consumption calculation, the number of energy consumption tests of the kiln system should be no less than 3 times, and the results of the 3 test data The deviation should not be more than 5%.

5.3 Energy consumption test of forming annealing system

5.3.1 Test boundary

The forming annealing system includes forming and annealing two parts. The energy consumption test boundary of the molding system is the tin bath, edge-drawing machine, cooling fan, cooling water, Protective gas, electric heating, see Figure 5.The energy consumption test boundary of the annealing system is the annealing kiln, cooling fan, and electric heating, as shown in Figure 6.

Figure 6 Energy consumption test boundary of annealing system

5.3.2 Test requirements

5.3.2.1 The statistical period of energy consumption test of the forming annealing system shall not be less than 72 hours continuously.

5.3.2.2 During the test, the thickness and width of the formed glass plate should not be changed, and the electric heating power used in the tin bath remains unchanged. Stable annealing conditions, Without frying plates, production is stable and normal. The amount of protective gas produced remains unchanged.

5.3.2.3 The process control during the energy consumption test of the forming annealing system shall meet the requirements of Table 6, and the main operating parameters shall not be changed during the test.

5.3.3 Test content

The energy consumption test content and test frequency of the forming annealing system are shown in Table 7.

5.3.4 Test methods and data processing

5.3.4.1 Test method

The temperature of the glass plate at the exit of the tin bath is measured by the infrared thermometer installed on the top of the tin bath, and the temperature of the glass plate in the annealing furnace is annealing.

The value measured by the infrared thermometer installed on the top of the kiln, the thickness and width of the glass plate are measured in accordance with the regulations of GB 11614, and the protective gas flow and pressure The force uses the displayed value of the flowmeter and pressure gauge. The electrical energy consumption test is carried out in accordance with the provisions of Appendix C.

5.3.4.2 Data processing

According to the 72h test results, the energy consumption is calculated. The energy consumption test times of the forming annealing system are not less than 3 times, and the deviation of the test results Should not be greater than 5%. The energy consumption test of the forming annealing system is mainly the power consumption of the system, and the test parameters are based on the power rooms, transformers and electrical equipment in the system.

The power consumption of the equipment and the output of the corresponding products are expressed.

5.4 Energy consumption test of cutting and stacking system

5.4.1 Test boundary

The energy consumption test boundary of the cutting and stacking system includes roller conveyor, cutting, and stacking parts.

5.4.2 Test requirements

5.4.2.2 The thickness and width of the glass plate remain unchanged.

5.4.2.1 Carry out under normal production conditions

5.4.3 Test content

Mainly test power consumption.

5.4.4 Test methods and data processing

5.4.4.1 Test method

The energy consumption of the cutting and stacking system is mainly based on enterprise statistics. The electrical energy consumption test is carried out in accordance with the provisions of Appendix C.

5.4.4.2 Data processing

The energy consumption test result of the cutting and stacking system is mainly the system power consumption. The system energy consumption test parameters are based on the power rooms, transformers and application The power consumption of electrical equipment and the output of corresponding products are expressed.

5.5.1 Test boundary

The entire waste heat power generation system from the waste heat boiler inlet of the waste heat power generation system to the steam turbine and cooling tower is shown in Figure 7.

Figure 7 Boundary of energy consumption test of waste heat power generation system

5.5.2 Test requirements

5.5.2.1 During the energy consumption test of the waste heat power generation system, the output of the kiln, fuel consumption, the output of the kiln and the power generation of the waste heat power generation system shall be calculated The fluctuation range of the amount should not exceed ±5% of the average value during the test; the test should be no less than 72h, and the kiln system and the waste heat power generation system should be It should be carried out under normal and stable operating conditions, that is, the kiln and waste heat power generation system should not be stopped during the test, otherwise the energy consumption test should be repeated.

5.5.2.2 During the energy consumption test of the waste heat power generation system, the process control of the kiln system shall meet the requirements of Table 3.

5.5.2.3 The test of thermal parameters of the waste heat power generation system shall be carried out in accordance with the regulations of JC/T 488.

5.5.3 Test content

The energy consumption test content and test frequency of waste heat power generation system are shown in Table 8.

5.5.4 Test methods and data processing

5.5.4.1 Test method

The pressure, temperature and flow rate in the test content of the waste heat power generation system can be carried out in accordance with the regulations in JC/T 488. Electric energy consumption test Follow the provisions of Appendix C.

5.5.4.2 Data processing

According to the 72h test data for data processing, the number of energy consumption tests shall not be less than 3 times, and the difference between the results of each energy consumption test More than 5%, otherwise the energy consumption test should be repeated.

5.6 Energy consumption test of flue gas purification system

5.6.1 Test boundary

The test boundary of the flue gas purification system includes the desulfurization part, the denitration part, the dust removal part, and the sewage treatment part.

5.6.2 Test requirements

5.6.2.2 The working conditions of the kiln are stable, and the output and fuel types of the kiln are stable.

5.6.2.3 Multiple production lines use a flue gas purification system, and the energy consumption of each production line is weighted according to output.

5.6.2.4 The emission concentration of flue gas air pollutants shall meet the requirements of GB 26453 and local standards.

5.6.2.1 Carry out under normal production conditions

5.6.3 Test content

The energy consumption test content and test frequency of the flue gas purification system are shown in Table 9.

5.6.4 Test methods and data processing

5.6.4.1 Test method

The particulate matter concentration, sulfur dioxide concentration and nitrogen oxide concentration in the test content of the flue gas purification system are tested in accordance with GB 26453 The regulations are carried out. The electrical energy consumption test is carried out in accordance with the provisions of Appendix C.

5.6.4.2 Data processing

The energy consumption test result of the flue gas purification system is mainly the power consumption of the system. The energy consumption test parameters are based on the electrical power of each power room and electrical equipment in the system. Quantity consumption and corresponding product output.

5.7 Energy consumption test of auxiliary production system

5.7.1 Test boundary

The auxiliary production system includes air compressor, water pump room, factory lighting, machine repair workshop, oil pump room, etc.

5.7.2 Test requirements

5.7.2.1 It should be carried out under normal operating conditions of the production line system.

5.7.2.2 In the case of the entire production line running, the statistical time should be no less than 72h.

5.7.3 Test content

Mainly test power consumption.

5.7.4 Test methods and data processing

5.7.4.1 Test method

The energy consumption of the auxiliary production system is mainly based on enterprise statistics, and the statistics of power consumption under normal operation conditions.

5.7.4.2 Data processing

The energy consumption test result of the auxiliary production system is mainly the system power consumption. The energy consumption test parameters are based on the power rooms, transformers and power equipment in the system.

The power consumption of the equipment and the output of the corresponding products are expressed.

A.1 Overview

This appendix gives the preparation content of the energy consumption test outline for flat glass manufacturing. During the energy consumption test of the flat glass manufacturing system, It is advisable to refer to this appendix to write a test outline.

A.2 Contents of Energy Consumption Test Outline

A.2.2 Test content

Determine the test content according to the purpose and requirements of the test, the process flow of the test system and the characteristics of the equipment.

A.2.3 Test arrangement and work content

The test arrangement and work content are shown in Table A.1.

B.1 Overview

This appendix gives the contents of the basic situation table of different systems during the energy consumption test. Before the energy consumption test of the flat glass manufacturing process, you should Compile the basic situation table of energy consumption test according to the requirements of this appendix.

B.2 Basic situation of raw material system

The basic situation of the raw material system includes the following.

a) Raw material system process drawing and equipment table;

b) Design indicators such as raw material conditions, composition, and moisture used in the design of the raw material system;

c) The recent production quality report of the raw material system;

d) The nameplate parameters of the distribution transformer and the nameplate parameters of the main motors;

e) Power distribution system diagram;

f) Configuration drawing of electric energy measuring instruments, and the magnification of each electric energy meter.

B.3 Basic situation of kiln system

The basic situation of the kiln system includes the following.

a) Process drawing and equipment list of kiln system;

b) Furnace system design parameters and actual operation reports, including fuel quantity, melting temperature, fuel temperature, system power consumption and other parameters;

c) The nameplate parameters of the distribution transformer and the nameplate parameters of the main motors;

d) Diagram of power distribution system;

e) Configuration drawing of electric energy measuring instruments, and the magnification of each electric energy meter.

B.4 Basic situation of forming annealing system

The basic situation of the forming annealing system includes the following.

a) Process drawing and equipment list of forming annealing system;

b) The design parameters and actual operation reports of the forming annealing system, including the amount of draw, the thickness of the glass plate, the width of the glass plate, the temperature of the tin liquid, the system Parameters such as system power consumption;

c) The nameplate parameters of the distribution transformer and the nameplate parameters of the main motors;

d) Diagram of power distribution system;

e) Configuration drawing of electric energy measuring instruments, and the magnification of each electric energy meter.

B.5 Basic situation of cutting and stacking system

The basic situation of the cutting and stacking system includes the following.

a) Cutting and stacking system process drawing and equipment table;

b) The nameplate parameters of the distribution transformer and the nameplate parameters of the main motors;

c) Diagram of power distribution system;

d) Configuration diagram of electric energy measuring instruments, and the magnification of each electric energy meter.

B.6 Basic situation of waste heat power generation system

The basic situation of the waste heat power generation system includes the following.

a) Process drawing and equipment list of waste heat power generation system;

b) Relevant design parameters of waste heat power generation system;

c) The recent production and operation report of the waste heat power generation system;

d) Other information required for electrical energy efficiency testing.

B.7 Basic situation of flue gas purification system

The basic situation of the flue gas purification system includes the following.

a) Process drawing and equipment table of the flue gas purification system;

b) The relevant design parameters of the flue gas purification system;

c) The nameplate parameters of the distribution transformer and the nameplate parameters of the main motors;

d) Diagram of power distribution system;

e) Configuration drawing of electric energy measuring instruments, and the magnification of each electric energy meter.

B.8 Basic situation of auxiliary production system

The basic situation of the auxiliary production system includes the following.

a) Design indicators such as the host system configuration of the auxiliary production system;

b) Auxiliary production system statistical period power consumption report;

c) The nameplate parameters of the distribution transformer and the nameplate parameters of the main motors;

d) Diagram of power distribution system;

e) Configuration drawing of electric energy measuring instruments, and the magnification of each electric energy meter.

C.1 Power supply and distribution system and motor running state test

The operation status monitoring of the power supply and distribution system and the operation status test of the main motors are in accordance with the requirements of GB/T 16664 and GB/T 12497.

C.2 Product comprehensive power consumption test method

C.2.1 Statistical test method

C.2.1.1 Statistical content

Statistics should be based on the meter records of the power consumption of the production line and each production process and the output records of the products in the corresponding time period.

For enterprises with multiple production lines, they should be divided according to output.

C.2.1.2 Statistical period

The statistical period for the comprehensive power consumption test of a unit product should be one month.

C.2.1.3 Statistical scope

C.2.1.3.1 Raw material system

The electricity consumed during the entire raw material production process from when the raw materials enter the factory to when the mixture enters the kiln silo does not include those used for infrastructure and technological transformation. The electricity consumed by the construction of the project.

C.2.1.3.2 Melting system

The electricity consumed during the entire production process from the time the mixture enters the kiln to when the molten glass enters the tin bath, including the fuel production process Electricity consumption does not include electricity consumed for the construction of infrastructure, technological transformation and other projects.

C.2.1.3.3 Forming annealing system

The electricity consumed during the entire production process from when the molten glass enters the tin bath to when the glass plate leaves the annealing furnace, including the electricity consumed for the preparation of protective gas The amount does not include the electricity consumed for the construction of infrastructure, technological transformation and other projects.

C.2.1.3.4 Cutting and stacking system

The electricity consumed during the entire production process from when the glass plates exit the annealing kiln to when the glass plates are stacked in the rack, excluding those used for infrastructure, technological transformation, etc. Electricity consumed by project construction.

C.2.2 Field test method

C.2.2.1 Test content

Test the power consumption of the production line and each production process and the corresponding product output.

C.2.2.2 Electricity and output measuring points

Before testing, it should be based on the actual situation of the company's power supply and distribution wiring, power supply and distribution equipment, power meter configuration, and output measurement device settings. Condition, determine the measuring point.

a) The electric energy measuring point can be based on the test object, purpose and configuration of the enterprise electric energy meter, according to the high-voltage motor, low-voltage electrical equipment Determined separately. The high-voltage motor should be selected in its start control cabinet, and the low-voltage electrical equipment should be selected in the low-voltage distribution room to the production workers.

At the electrical energy metering meter of the sequence power distribution, and corresponding to the position of the electricity metering meter of the statistical content.

b) The measuring point of output should correspond to the procedure of electric energy measurement.

C.2.2.3 Test scope

In accordance with the provisions of C.2.1.3.

C.2.2.4 Test time and recording period

All measuring points in the same system should start testing and recording at the same time.

a) The continuous test time of raw material feeding, mixing and conveying is 72h, which can be tested in different periods according to the production shift, and each continuous test period is not less than 6h, the number of downtimes during the test should not be more than 2 times, and the recording time interval is 0.5h.

b) Furnace, forming annealing, cutting and stacking system.

The continuous test time is 72h, which can be tested continuously or in time intervals according to the shift. Each continuous test period should not be less than 8h, record the time The interval is 0.5h.

c) Auxiliary production system. Continuous test 72h, recording time interval 0.5h.

C.2.2.5 Test instrument

The test accuracy of the electricity meter should meet the requirements of GB 17167 and should be within the validity period of calibration or verification.

C.2.2.6 Calculation method

C.2.2.6.1 Raw material system

Calculate according to formula (C.1).