1 Introduction
In recent years, my country's gas industry has achieved unprecedented rapid development. Large gas fields in Shaanxi, Gansu and Ningxia, Qinghai, Xinjiang, East China Sea, and Bohai Sea have successively discovered large gas fields.
Tian and my country's agreement to import natural gas from Russia provides necessary conditions for the development of my country's industrial users. In addition, with the continuous development of industry
, energy consumption is increasing day by day, and environmental pollution is getting worse day by day; people's awareness of environmental protection and calls for improving the environment have prompted the government to increase
Efforts to use mandatory policies to guide the energy consumption structure to change to clean and energy-saving energy. Affected by the above factors, gas and fuel oil are highly efficient
Clean energy is increasingly favored by industrial and commercial enterprises, especially small and medium-sized coal-fired boilers and kilns, which account for 70% of pollution sources, are under strong pressure
The next also accelerated the pace of transformation to gas and fuel oil. Therefore, the application and development of small and medium-sized oil and gas industrial burners also emerged at the historic moment.
Due to historical reasons, foreign countries have studied gas and fuel oil application technology, including industrial burners, for a long time, and have been engaged in combustion
A professional manufacturer of instrument production, relying on its rich experience and industry status in this field, relying on scientific production management and advanced technical equipment
, to ensure the reliable quality, excellent performance and perfect automatic control system of its products quickly occupied a considerable share in the Chinese market, and also won the
The trust and reputation of our customers, of course, earned a lot of foreign exchange. Such as American Eclipse, Bekty, North American Company, German Weishaupt, British Liwei
, Italy Black & Decker, Riello, Zac, etc. are the representatives. In addition, the state or industry management departments do not treat industrial burners like they do for civilian burning appliances.
There are also clear unified standards and special inspection departments, so that local industry management departments have no way to rely on, no inspection methods, and no ability to implement inspections.
inspection supervision. For imported burners, because domestic manufacturers often manufacture the equipment themselves and only import burners, the burners often do not match.
, can not operate normally or difficult to meet the process requirements, unable to debug, low thermal efficiency and many other situations, causing losses to direct users. Commodity inspection department
There is also no way to test import checks. Faced with this situation, we believe that the development and establishment of multi-functional small and medium-sized oil and gas industrial burner testing facilities in Harbin University
A test bench is very necessary.
2 Our advantages and laboratory construction
2.1 Existing conditions
At present, Harbin Jianda Gas Laboratory has a total area of more than 500 square meters, fully equipped with water, electricity and gas, and can provide more than ten kinds of teaching experiments for undergraduates
, and the Harbin City Stove Testing Station is located in this laboratory, which conducts more accurate tests on the composition, calorific value, and flame propagation speed of the gas:
The thermal characteristics of gas appliances, the analysis of combustion flue gas, the pressure and temperature in the furnace are accurately tested, and the transmission and distribution, storage and gasification of residential areas have been carried out for many years.
Extensive and in-depth research has been carried out on the development and development of gas supply, gas combustion, and gas appliances, especially in recent years, the development and development of gas appliances, etc.
Extensive and in-depth research has been carried out, especially in recent years, on gas heaters, gas kilns, gas boilers, gas heat pumps, gas vehicles, etc.
Conducted fruitful research and development. At present, there are favorable conditions for the development and research of gas burners.
2.2 Significant benefits
The establishment of the test platform can increase the inspection items of the gas testing station on the one hand, directly serve the society, and increase the income of the school and department; on the other hand, it can
Through this window, Harbin Jianda’s status in the same industry in the country, and even its extensive influence in the world; more importantly, the construction of this test bench
Establishment will greatly strengthen the basic strength of scientific research of our department, strive for more scientific research projects in the country, and improve and give full play to the talents of teachers in the teaching and research section.
Mingcai provides a very good place to lay a good foundation for the training of graduate students.
3 Design of test furnace body
For the establishment of the test bench and the development of several large-scale test projects in the future, the construction of the combustion test laboratory will be carried out first.
(The existing conditions are basically satisfied).
In order to test various types of industrial oil and gas burners, the entire test furnace adopts a flexible structure to enhance adaptability.
(1) The entire test length direction is divided into three sections, namely the furnace head, furnace body and furnace tail. The middle part of the furnace can be removed, or the furnace head can be shortened to
Adapt to the requirements for the length of the furnace. Moreover, the three sections are equipped with wheels and placed on the light rail, which can be moved and docked, which also brings convenience to the maintenance of the furnace.
The approximate size is 1 meter for the furnace head, 1.8 meters for the furnace body and 1.7 meters for the furnace tail.
(2) The net size of the furnace section is 900×900, which meets the requirements of large diameter flames.
(3) The size of the burner installation hole of the burner head can be changed, only need to process a mounting plate according to the diameter of the burning head of the burner, and then it can be fixed on the burner head
Set some fire viewing holes.
(4) There are 12 water-cooled tubes that can move up and down on the top of the furnace body, which are driven by the motor to change the insertion depth and the heating area in the furnace, so as to
To achieve the purpose of regulating heat absorption and furnace temperature.
(5) The main heat exchanger is installed at the end of the furnace, and the exhaust gas temperature can be adjusted by changing the water volume.
(6) The chimney is 8 meters high, and the wind range is set behind the roof. A butterfly valve is installed in the flue, and the opening degree can adjust the pressure in the furnace.
(7) A 12-meter aluminum alloy instrument control room is established, and all test results are processed by computer and printed out.
4 Data Acquisition System
The data detection system is designed, taking into account the requirements of automation and accuracy. In addition to the temperature detection of primary instruments, domestic thermal resistance thermocouples are used.
, Gas pressure regulator, gas flow, gas pressure, water flow, furnace pressure, component analysis and other detection instruments are imported equipment.
(1) Coal gas: The medium pressure gas is measured after pressure regulation, and the waist wheel gas meter sends the volume flow to the computer. At the same time, the thermal resistance sends the gas pressure signal
It is sent to the computer processing system together, which can display the gas flow rate under the standard state. The measured gas is regulated by a pneumatic butterfly valve,
The hose can be easily connected with the burner.
(2) Cooling water: Divided into four groups, each group sends the temperature signal of the inlet and outlet water measured by the thermal resistance and the flow signal of the water meter to the computer for data acquisition
system that calculates the heat removed by the water. Among them, three groups are the heat absorption of the variable heat transfer surface of the furnace body, and one group is the heat absorption of the main heat exchanger at the furnace tail.
(3) Furnace pressure: Through the opening of the chimney butterfly valve, the furnace pressure can be changed within -200-1000Pa. As a result, the four-point hearth from top to bottom on the side of the furnace
Pressure, the task of signal transmission will be completed by the pressure transmitter.
(4) Temperature: The signal conversion and transmission tasks are completed by the ten-point thermocouple in another example of the furnace body. And each thermocouple can be plugged in and pulled out, by moving
Moving can see the temperature distribution on a certain plane.
(5) Analysis of gas composition in the furnace
From the furnace head to the furnace tail, there are four sampling points. The composition of each point can be analyzed one by one through the automatic switching of the solenoid valve, and CO, C02,
02, N0x and other four components, such signals are also processed and printed out by computer.
(6) Computer system
Through the collection and processing of data by industrial computers, it can not only display the current detection conditions online, but also store historical data and start operations. You can see the online
The temperature changes, and finally output the test report.
5. equipment investment
Body construction 100,000 yuan
Computer monitoring system 60,000 yuan
Gas pressure regulating system 50,000 yuan
Gas leakage alarm and emergency cut-off valve DN100 30,000 yuan
Two gas and oil burners 40,000 yuan
Water tank, oil tank and valve, circulation pump 30,000 yuan
Construction cost 50,000 yuan
Total: 360,000 yuan
1 Introduction
In recent years, my country's gas industry has achieved unprecedented rapid development. Large gas fields in Shaanxi, Gansu and Ningxia, Qinghai, Xinjiang, East China Sea, and Bohai Sea have successively discovered large gas fields.
Tian and my country's agreement to import natural gas from Russia provides necessary conditions for the development of my country's industrial users. In addition, with the continuous development of industry
, energy consumption is increasing day by day, and environmental pollution is getting worse day by day; people's awareness of environmental protection and calls for improving the environment have prompted the government to increase
Efforts to use mandatory policies to guide the energy consumption structure to change to clean and energy-saving energy. Affected by the above factors, gas and fuel oil are highly efficient
Clean energy is increasingly favored by industrial and commercial enterprises, especially small and medium-sized coal-fired boilers and kilns, which account for 70% of pollution sources, are under strong pressure
The next also accelerated the pace of transformation to gas and fuel oil. Therefore, the application and development of small and medium-sized oil and gas industrial burners also emerged at the historic moment.
Due to historical reasons, foreign countries have studied gas and fuel oil application technology, including industrial burners, for a long time, and have been engaged in combustion
A professional manufacturer of instrument production, relying on its rich experience and industry status in this field, relying on scientific production management and advanced technical equipment
, to ensure the reliable quality, excellent performance and perfect automatic control system of its products quickly occupied a considerable share in the Chinese market, and also won the
The trust and reputation of our customers, of course, earned a lot of foreign exchange. Such as American Eclipse, Bekty, North American Company, German Weishaupt, British Liwei
, Italy Black & Decker, Riello, Zac, etc. are the representatives. In addition, the state or industry management departments do not treat industrial burners like they do for civilian burning appliances.
There are also clear unified standards and special inspection departments, so that local industry management departments have no way to rely on, no inspection methods, and no ability to implement inspections.
inspection supervision. For imported burners, because domestic manufacturers often manufacture the equipment themselves and only import burners, the burners often do not match.
, can not operate normally or difficult to meet the process requirements, unable to debug, low thermal efficiency and many other situations, causing losses to direct users. Commodity inspection department
There is also no way to test import checks. Faced with this situation, we believe that the development and establishment of multi-functional small and medium-sized oil and gas industrial burner testing facilities in Harbin University
A test bench is very necessary.
2 Our advantages and laboratory construction
2.1 Existing conditions
At present, Harbin Jianda Gas Laboratory has a total area of more than 500 square meters, fully equipped with water, electricity and gas, and can provide more than ten kinds of teaching experiments for undergraduates
, and the Harbin City Stove Testing Station is located in this laboratory, which conducts more accurate tests on the composition, calorific value, and flame propagation speed of the gas:
The thermal characteristics of gas appliances, the analysis of combustion flue gas, the pressure and temperature in the furnace are accurately tested, and the transmission and distribution, storage and gasification of residential areas have been carried out for many years.
Extensive and in-depth research has been carried out on the development and development of gas supply, gas combustion, and gas appliances, especially in recent years, the development and development of gas appliances, etc.
Extensive and in-depth research has been carried out, especially in recent years, on gas heaters, gas kilns, gas boilers, gas heat pumps, gas vehicles, etc.
Conducted fruitful research and development. At present, there are favorable conditions for the development and research of gas burners.
2.2 Significant benefits
The establishment of the test platform can increase the inspection items of the gas testing station on the one hand, directly serve the society, and increase the income of the school and department; on the other hand, it can
Through this window, Harbin Jianda’s status in the same industry in the country, and even its extensive influence in the world; more importantly, the construction of this test bench
Establishment will greatly strengthen the basic strength of scientific research of our department, strive for more scientific research projects in the country, and improve and give full play to the talents of teachers in the teaching and research section.
Mingcai provides a very good place to lay a good foundation for the training of graduate students.
3 Design of test furnace body
For the establishment of the test bench and the development of several large-scale test projects in the future, the construction of the combustion test laboratory will be carried out first.
(The existing conditions are basically satisfied).
In order to test various types of industrial oil and gas burners, the entire test furnace adopts a flexible structure to enhance adaptability.
(1) The entire test length direction is divided into three sections, namely the furnace head, furnace body and furnace tail. The middle part of the furnace can be removed, or the furnace head can be shortened to
Adapt to the requirements for the length of the furnace. Moreover, the three sections are equipped with wheels and placed on the light rail, which can be moved and docked, which also brings convenience to the maintenance of the furnace.
The approximate size is 1 meter for the furnace head, 1.8 meters for the furnace body and 1.7 meters for the furnace tail.
(2) The net size of the furnace section is 900×900, which meets the requirements of large diameter flames.
(3) The size of the burner installation hole of the burner head can be changed, only need to process a mounting plate according to the diameter of the burning head of the burner, and then it can be fixed on the burner head
Set some fire viewing holes.
(4) There are 12 water-cooled tubes that can move up and down on the top of the furnace body, which are driven by the motor to change the insertion depth and the heating area in the furnace, so as to
To achieve the purpose of regulating heat absorption and furnace temperature.
(5) The main heat exchanger is installed at the end of the furnace, and the exhaust gas temperature can be adjusted by changing the water volume.
(6) The chimney is 8 meters high, and the wind range is set behind the roof. A butterfly valve is installed in the flue, and the opening degree can adjust the pressure in the furnace.
(7) A 12-meter aluminum alloy instrument control room is established, and all test results are processed by computer and printed out.
4 Data Acquisition System
The data detection system is designed, taking into account the requirements of automation and accuracy. In addition to the temperature detection of primary instruments, domestic thermal resistance thermocouples are used.
, Gas pressure regulator, gas flow, gas pressure, water flow, furnace pressure, component analysis and other detection instruments are imported equipment.
(1) Coal gas: The medium pressure gas is measured after pressure regulation, and the waist wheel gas meter sends the volume flow to the computer. At the same time, the thermal resistance sends the gas pressure signal
It is sent to the computer processing system together, which can display the gas flow rate under the standard state. The measured gas is regulated by a pneumatic butterfly valve,
The hose can be easily connected with the burner.
(2) Cooling water: Divided into four groups, each group sends the temperature signal of the inlet and outlet water measured by the thermal resistance and the flow signal of the water meter to the computer for data acquisition
system that calculates the heat removed by the water. Among them, three groups are the heat absorption of the variable heat transfer surface of the furnace body, and one group is the heat absorption of the main heat exchanger at the furnace tail.
(3) Furnace pressure: Through the opening of the chimney butterfly valve, the furnace pressure can be changed within -200-1000Pa. As a result, the four-point hearth from top to bottom on the side of the furnace
Pressure, the task of signal transmission will be completed by the pressure transmitter.
(4) Temperature: The signal conversion and transmission tasks are completed by the ten-point thermocouple in another example of the furnace body. And each thermocouple can be plugged in and pulled out, by moving
Moving can see the temperature distribution on a certain plane.
(5) Analysis of gas composition in the furnace
From the furnace head to the furnace tail, there are four sampling points. The composition of each point can be analyzed one by one through the automatic switching of the solenoid valve, and CO, C02,
02, N0x and other four components, such signals are also processed and printed out by computer.
(6) Computer system
Through the collection and processing of data by industrial computers, it can not only display the current detection conditions online, but also store historical data and start operations. You can see the online
The temperature changes, and finally output the test report.
5. equipment investment
Body construction 100,000 yuan
Computer monitoring system 60,000 yuan
Gas pressure regulating system 50,000 yuan
Gas leakage alarm and emergency cut-off valve DN100 30,000 yuan
Two gas and oil burners 40,000 yuan
Water tank, oil tank and valve, circulation pump 30,000 yuan
Construction cost 50,000 yuan
Total: 360,000 yuan