Energy-saving monitoring and early warning device for industrial boiler

Abstract

The utility model relates to the technical field of boiler operation, in particular to an industrial boiler energy-saving monitoring and early warning device which comprises an energy saver arranged at a smoke outlet of a boiler body, an outlet of the energy saver is connected with a smoke outlet pipeline, and the smoke outlet pipeline is provided with a sensor group used for collecting oxygen concentration, carbon monoxide concentration, temperature and smoke flow. The sensor group transmits collected data to a control unit, the control unit analyzes the collected data and transmits the data to a mobile phone, when the data detected by the sensor group exceeds an initial value under a corresponding load for a certain proportion and time, the control unit feeds back information to the mobile phone, and a mobile phone APP terminal displays early warning information and a corresponding numerical value. And an operator checks and analyzes in time and makes effective adjustment according to early warning information and values, so that energy waste is reduced, the combustion efficiency is improved, and the economic benefit is improved.

Description

Technical Field

[0001] This utility model relates to the field of boiler operation technology, specifically to an energy-saving monitoring and early warning device for industrial boilers. Background Technology

[0002] With economic development, the energy consumption of small industrial boilers has gradually attracted attention, especially in industries where boiler fuel costs account for a high proportion of total product costs. Currently, because the combustion status and efficiency of boilers cannot be directly reflected, boiler operating costs are greatly affected by daily operation management and the skill level of the boiler operator. Furthermore, boiler operators' judgment of boiler combustion efficiency is somewhat unreliable, resulting in unstable combustion, an inability to achieve a reasonable ratio of fuel and air supply during combustion, and excessively high flue gas temperatures due to short circuits or scale buildup. Consequently, small industrial boilers generally suffer from high energy consumption and low economic efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an energy-saving monitoring and early warning device for industrial boilers.

[0004] This utility model provides the following technical solution:

[0005] This utility model proposes an energy-saving monitoring and early warning device for industrial boilers, including an energy-saving device installed at the flue gas outlet of the boiler body. The outlet of the energy-saving device is connected to the flue gas pipeline. The flue gas pipeline is equipped with a sensor group for collecting oxygen concentration, carbon monoxide concentration, temperature, and flue gas flow. The sensor group transmits the collected data to a control unit. The control unit analyzes the collected data and transmits it to a mobile phone, which displays early warning information and measured values.

[0006] Furthermore, the sensor array is within one meter of the outlet of the energy-saving device.

[0007] Furthermore, the sensor group includes an oxygen concentration sensor, a carbon monoxide concentration sensor, a smoke temperature sensor, and a smoke flow sensor.

[0008] Furthermore, the output of the sensor group is electrically connected to the ADC analog-to-digital converter of the control unit.

[0009] Furthermore, the control unit is wirelessly connected to the APP on the mobile phone.

[0010] Furthermore, the sensor group is threadedly connected to the smoke outlet pipe.

[0011] Compared with existing technologies, this utility model is simple and easy to operate. The control unit calculates the current load through the flue gas sensor and sets the oxygen content, carbon monoxide content, and flue gas temperature at the optimal thermal efficiency under the corresponding load as initial values. When the sensor group detects that the oxygen content, carbon monoxide content, and flue gas temperature in the flue gas exceed the initial values ​​under the corresponding load by a certain proportion and for a certain period of time, the control unit feeds the information back to the mobile phone. The mobile APP displays the warning information and corresponding values. The operator can check and analyze in time and make effective adjustments based on the warning information and values, thereby reducing energy waste, improving combustion efficiency, and improving economic benefits. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention.

[0013] (The arrows in the diagram indicate the direction of smoke flow.)

[0014] In the diagram, 1-boiler body; 2-energy saver; 3-oxygen concentration sensor; 4-carbon monoxide concentration sensor; 5-flue gas temperature sensor; 6-flue gas flow sensor; 7-(blower, induced) fan; 8-control unit; 9-mobile phone; 10-smoke outlet pipe. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] In the following embodiments, the oxygen concentration sensor is model AGZr02-5 from Anguang Electric; the carbon monoxide concentration sensor is model SINZEN1; the temperature sensor is model SITRANS TS500; and the flue gas flow sensor is HLG-K from Hailian.

[0017] This utility model proposes an energy-saving monitoring and early warning device for industrial boilers, including an energy-saving device 2 installed at the flue gas outlet of the boiler body 1. The outlet of the energy-saving device 2 is connected to the flue gas pipeline 9. The flue gas pipeline 9 is equipped with a sensor group for collecting oxygen concentration, carbon monoxide concentration, temperature and flue gas flow. The sensor group transmits the collected data to a control unit 8. The control unit 8 analyzes the collected data and transmits it to a mobile phone 9, which displays the corresponding measured values ​​and early warning information.

[0018] In practical applications, the control unit calculates the current load using flue gas sensors and, based on the anti-balance calculation formula and heat loss curve, adjusts the optimal air-fuel ratio under the current load, setting the initial values ​​for oxygen content, carbon monoxide content, and flue gas temperature at the optimal thermal efficiency under this load. When the boiler operates under different loads, if the sensor group detects that the oxygen content, carbon monoxide content, and flue gas temperature exceed the initial values ​​under the corresponding load by a certain proportion and for a certain period of time, the control unit feeds the information back to the mobile phone. The mobile APP displays warning information and corresponding values, allowing operators to promptly detect, analyze, and make effective adjustments based on the warning information and values.

[0019] In one embodiment of this utility model, the sensor group is within one meter of the outlet of the energy saver 2 to accurately reflect the flue gas temperature and avoid the impact of heat loss.

[0020] In one embodiment of this utility model, the sensor group includes an oxygen concentration sensor 3 for collecting oxygen concentration, a carbon monoxide concentration sensor 4 for collecting carbon monoxide concentration, a flue gas temperature sensor 5 for collecting flue gas temperature, and a flue gas flow sensor 6 for collecting flue gas flow rate.

[0021] In one embodiment of this utility model, the output terminal of the sensor group is electrically connected to the ADC analog-to-digital converter of the control unit 8.

[0022] In one embodiment of this utility model, the control unit 8 is wirelessly connected to the APP on the mobile phone 9.

[0023] In one embodiment of this utility model, the sensor group is threadedly connected to the smoke outlet pipe 10; this facilitates disassembly and assembly.

[0024] Practical Exercise 1: The control unit calculates the current load using the flue gas sensor (e.g., when the boiler operating load is calculated to be 70%), and adjusts the optimal air-fuel ratio under the current load using the inverse balance method calculation formula (η=1-(q2+q3+q4+q5)). It then sets the initial values ​​for the oxygen content, carbon monoxide content, and flue gas temperature at which the optimal thermal efficiency is achieved under this load (e.g., oxygen content 4%, carbon monoxide 20ppm, flue gas temperature 70℃, etc.). When any one of the oxygen concentration sensor, carbon monoxide concentration sensor, or flue gas temperature sensor provides feedback... If the value given to the control unit exceeds the initial value by 10% and the time exceeds 30 minutes, the control unit will send the information back to the mobile phone. The mobile APP will display the warning information and the corresponding value. The operator can check and analyze the warning information and the value in a timely manner and make effective adjustments (e.g., ① if the oxygen concentration is abnormally high, check and adjust the frequency of the blower and induced draft fan; ② if the carbon monoxide concentration is high, check and adjust the fan frequency. When the equipment is a gas boiler, also check the carbon buildup on the burner; ③ if the flue gas temperature is abnormally high, check for water shortage during combustion, abnormal scale, or flue gas short circuit, etc.).

[0025] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. An energy-saving monitoring and early warning device for industrial boilers, characterized in that: The system includes an energy-saving device installed at the flue gas outlet of the boiler body. The outlet of the energy-saving device is connected to the flue gas pipeline. The flue gas pipeline is equipped with a sensor group for collecting oxygen concentration, carbon monoxide concentration, temperature, and flue gas flow. The sensor group transmits the collected data to a control unit. The control unit analyzes the collected data and transmits it to a mobile phone, which displays warning information and measured values.

2. The industrial boiler energy-saving monitoring and early warning device according to claim 1, characterized in that: The sensor array is within one meter of the outlet of the energy-saving device.

3. The industrial boiler energy-saving monitoring and early warning device according to claim 1, characterized in that: The sensor group includes an oxygen concentration sensor, a carbon monoxide concentration sensor, a smoke temperature sensor, and a smoke flow sensor.

4. The energy-saving monitoring and early warning device for industrial boilers according to claim 1, characterized in that: The output of the sensor group is electrically connected to the ADC analog-to-digital converter of the control unit.

5. The industrial boiler energy-saving monitoring and early warning device according to claim 1, characterized in that: The control unit is wirelessly connected to the APP on the mobile phone.

6. The industrial boiler energy-saving monitoring and early warning device according to claim 1, characterized in that: The sensor group is threadedly connected to the smoke outlet pipe.

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