Boiler cyclone separator level measurement device and method of measuring thereof

Abstract

The present application relates to the technical field of boiler cyclone separator, and particularly relates to a boiler cyclone separator material level measuring device and a measuring method thereof, which comprises a material level measuring device main body; further comprises a hanging rope, a weighing sensor, a weighing transmitter, a protection assembly and a load monitor; the weighing sensor and the weighing transmitter are designed as a modular structure, so that the weighing sensor and the weighing transmitter are convenient to disassemble and replace; high-temperature protection measures are designed outside the weighing sensor and the weighing transmitter, so that the influence of high temperature on the performance of the device is reduced; the load monitor can present the load conditions of each supporting point of the large cyclone separator to the operation monitoring personnel in an intuitive way, so that the operation personnel can evaluate and adjust the circulation of the boiler ash in real time, and can provide overload warning, which plays a crucial role in the safe and stable operation of the generator set of the power generation company, and has great reference value for the same type of circulating fluidized bed generator set.

Description

Technical Field

[0001] This invention relates to the field of boiler cyclone separator technology, and more particularly to a material level measuring device and method for boiler cyclone separators. Background Technology

[0002] A circulating fluidized bed boiler is a type of boiler that utilizes the most advanced clean coal combustion technology in industrial applications. It employs a fluidized combustion method and its main structure consists of two parts: a combustion chamber and a circulating return furnace. During operation, solid particles (such as fuel particles and desulfurizing agent particles) are fluidized and burned in the bed. The cyclone separator effectively separates solid particles carried in the high-temperature flue gas leaving the furnace, ensuring that unburned fuel particles can return to the furnace for complete combustion. It also ensures the rational circulation of solid materials within the boiler, maintaining a stable bed material level by sending the separated particles back to the bottom of the furnace.

[0003] However, if the ash powder cannot be returned to the furnace in time during the circulation process, it will accumulate in the cyclone separator. When the ash powder level in the cyclone separator is too high, the cyclone separator may tilt or even collapse. In addition, the cyclone separator cylinder is composed of boiler pipes, in which high-temperature steam flows, and its internal chamber is also filled with high-temperature flue gas. It is impossible to use a more direct method to measure the particle material level in the cyclone separator chamber. Therefore, installation at high temperature will affect the performance of the measuring equipment and reduce its service life.

[0004] Therefore, in order to address the problems of difficulty in accurately monitoring the amount of fuel inside the cylinder during the operation of existing cyclone separators, and the impact of high-temperature environments on the use of measuring equipment, a material level measuring device and its measuring method for boiler cyclone separators can be designed. Summary of the Invention

[0005] To overcome the problems of existing cyclone separators having difficulty accurately monitoring the amount of fuel inside the cylinder during operation, and the high-temperature environment affecting the use of measuring equipment.

[0006] The technical solution of this invention is as follows: a boiler cyclone separator material level measuring device, including a material level measuring device body; it also includes a lifting rope, a weighing sensor, a weighing transmitter, a protection component, and a load monitor. A support foot is fixed to the lower end of the material level measuring device body. A lifting ring is fixed to the lower end of the top of the material level measuring device body. A lifting rope is connected to the lower end of the lifting ring. An upper connecting component is provided at the lower end of the lifting rope. The upper connecting component includes a connector. A measuring cylinder shell is connected to the lower end of the upper connecting component. A weighing sensor is installed inside the measuring cylinder shell. A weighing transmitter is installed at the upper end of the weighing sensor. A protection component is provided on the outer side of the measuring cylinder shell. The protection component includes a protective shell. A lower connecting component is provided at the lower end of the measuring cylinder shell. A cyclone separator is welded to the lower end of the lower connecting component. A mounting bracket is fixed to the back of the material level measuring device body. A load monitor is installed on the back of the mounting bracket.

[0007] Preferably, by setting up a weighing sensor, a weighing transmitter, and a load monitor, the weight of the cyclone separator can be monitored and measured accurately in real time. The upper connecting component facilitates the installation of the weighing sensor and the weighing transmitter under the suspension rope, and the lower connecting component facilitates the installation of the measuring cylinder shell on the cyclone separator. Furthermore, the set protection components ensure that the weighing sensor and the weighing transmitter can operate stably in high-temperature environments. Through the reasonable layout of the weighing sensor, the use of high-temperature resistant materials, and modular design, this equipment achieves real-time monitoring and accurate measurement of the weight of the cyclone separator, providing a strong guarantee for the safe and stable operation of the boiler system.

[0008] Preferably, the lifting rings are evenly spaced, with 16 lifting rings in total, and the lifting ropes are matched one-to-one with the lifting rings.

[0009] Preferably, the lower end of the suspension rope is connected to a connector, the lower end of the connector is connected to a connecting post, the surface of the connecting post is connected to a first washer, the surface of the connecting post is connected to a first nut, and the first nut is threadedly connected to the connecting post.

[0010] Preferably, a protective shell is provided on the outside of the measuring cylinder, an air inlet is provided at the lower end of the protective shell, and a miniature fan is installed on the inside of the air inlet.

[0011] Preferably, a guide plate is fixed on the inner side of the protective shell. The guide plate has a spiral structure, and an air outlet is opened on the surface of the protective shell.

[0012] Preferably, the inner side of the measuring cylinder is provided with a heat insulation layer, which is made of silicate thermal insulation material.

[0013] Preferably, a protrusion is fixed at the lower end of the measuring cylinder shell, and a mounting block is connected to the lower end of the protrusion. The mounting block is fitted and connected to the protrusion. A bolt is connected to the inner side of the mounting block, and a second washer is connected to the surface of the bolt. The bolt is threadedly connected to a second nut.

[0014] Preferably, the load cell is electrically connected to the load transmitter, and the load transmitter is electrically connected to the load monitor.

[0015] A method for measuring the material level in a boiler cyclone separator, including the aforementioned boiler cyclone separator material level measuring device, comprises the following steps: The first step is initial weight calibration. With the cyclone separator unloaded, its initial weight is measured and recorded using a load cell. This weight serves as the reference value for subsequent measurements. The second step is real-time monitoring. The weighing sensor is activated to continuously collect the weight data of the cyclone separator and transmits it in real time through the weighing transmitter. The third step is weight change analysis, which compares the real-time monitored weight with the initial weight and calculates the weight change. An increase in weight indicates an increase in the degree of accumulation of particulate material, while a decrease in weight indicates the discharge of particulate material. The fourth step is to determine the degree of accumulation. Based on the weight change, the design parameters of the cyclone separator, and the characteristics of the material, a reasonable threshold is set. When the weight change exceeds the set threshold, an alarm is triggered, prompting the operator to take appropriate measures.

[0016] The beneficial effects of this invention are as follows: The boiler cyclone separator material level measuring device and its measuring method are modularized by designing the key components of the weighing sensor and weighing transmitter into a modular structure, which facilitates disassembly and replacement. When a component fails, it can be quickly repaired without stopping the machine. Furthermore, by designing high-temperature protection measures on the outside of the weighing sensor and weighing transmitter, the impact of high temperature on equipment performance is reduced, and the service life of the equipment is extended. Moreover, by presenting the load status of each bearing point of the large cyclone separator to the operation monitoring personnel in an intuitive way, the operators can make real-time assessments and adjustments to the circulation of boiler ash. It can also provide overload alarms, which greatly prevents unsafe situations such as overloading, tilting, or even collapse of the cyclone separator caused by material blockage. At the same time, this equipment plays a vital role in the safe and stable operation of the generator set of the power company and has great reference value for similar circulating fluidized bed generator sets. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention; Figure 4 This is an exploded view of the protective casing of the present invention; Figure 5This is a schematic diagram of the three-dimensional structure of the protective shell of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the cross-section of the measuring cylinder shell according to the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Main body of the material level measuring equipment; 2. Support leg; 3. Lifting ring; 4. Lifting rope; 5. Upper connecting assembly; 6. Measuring cylinder shell; 7. Weighing sensor; 8. Weighing transmitter; 9. Protection assembly; 10. Lower connecting assembly; 11. Cyclone separator; 12. Mounting bracket; 13. Load monitor; 501. Connector; 502. Connecting column; 503. First gasket; 504. First nut; 901. Protective shell; 902. Air inlet; 903. Miniature fan; 904. Guide plate; 905. Air outlet; 906. Insulation layer; 1101. Protrusion; 1102. Mounting block; 1103. Bolt; 1104. Second gasket; 1105. Second nut. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figures 1-6 This invention provides an embodiment of a boiler cyclone separator material level measuring device, including a material level measuring device body 1; it also includes a lifting rope 4, a weighing sensor 7, a weighing transmitter 8, a protection component 9, and a load monitor 13. A support foot 2 is fixed to the lower end of the material level measuring device body 1. A lifting ring 3 is fixed to the lower end of the top of the material level measuring device body 1. The lower end of the lifting ring 3 is connected to the lifting rope 4. An upper connecting component 5 is provided at the lower end of the lifting rope 4. The upper connecting component 5 includes a connector 501. A measuring cylinder shell 6 is connected to the lower end of the upper connecting component 5. A weighing sensor 7 is installed inside the measuring cylinder shell 6. A weighing transmitter 8 is installed at the upper end of the weighing sensor 7. A protection component 9 is provided on the outer side of the measuring cylinder shell 6. The protection component 9 includes a protective shell 901. A lower connecting component 10 is provided at the lower end of the measuring cylinder shell 6. A cyclone separator 11 is welded to one end. A mounting bracket 12 is fixed to the back of the main body 1 of the material level measuring device. A load monitor 13 is installed on the back of the mounting bracket 12. By setting up a weighing sensor 7, a weighing transmitter 8, and a load monitor 13, the weight of the cyclone separator 11 can be monitored and measured in real time and accurately. The upper connecting component 5 facilitates the installation of the weighing sensor 7 and the weighing transmitter 8 under the suspension rope 4. The lower connecting component 10 facilitates the installation of the measuring cylinder 6 on the cyclone separator 11. The protective component 9 ensures that the weighing sensor 7 and the weighing transmitter 8 can operate stably in a high-temperature environment. Through the reasonable layout of the weighing sensor 7, the use of high-temperature resistant materials, and modular design, this device realizes the real-time monitoring and accurate measurement of the weight of the cyclone separator 11, providing a strong guarantee for the safe and stable operation of the boiler system.

[0021] Please see Figures 3-4 In this embodiment, the lifting rings 3 are evenly spaced, and there are 16 lifting rings 3. The lifting ropes 4 are arranged in a one-to-one correspondence with the lifting rings 3. The lower end of the lifting rope 4 is connected to a connector 501, and the lower end of the connector 501 is connected to a connecting post 502. A first washer 503 is connected to the surface of the connecting post 502, and a first nut 504 is connected to the surface of the connecting post 502. The first nut 504 is threadedly connected to the connecting post 502. The connecting post 502 is inserted into the insertion hole on the connector 501, and the first nut 504 is tightened to fix the measuring cylinder shell 6 on the connector 501. A protective shell 901 is provided on the outside of the measuring cylinder shell 6. An air inlet 902 is provided at the lower end of the protective shell 901. A micro fan 903 is installed on the inner side of the air inlet 902. By starting the micro fan 903, the air flow near the protective shell 901 can be accelerated, and heat dissipation can be achieved, thereby reducing the impact of high temperature on the performance of the equipment.

[0022] Please see Figures 4-6 In this embodiment, a guide plate 904 is fixed to the inner side of the protective shell 901. The guide plate 904 has a spiral structure. An air outlet 905 is opened on the surface of the protective shell 901. External air is guided by the spiral structure guide plate 904 to form a spiral airflow and rise, so as to remove the heat from the outer surface of the measuring cylinder shell 6. A heat insulation layer 906 is provided on the inner side of the measuring cylinder shell 6. The heat insulation layer 906 is made of silicate thermal insulation material. The selection of high temperature resistant material can further reduce the impact of high temperature on equipment performance and extend the service life of the equipment. A protrusion 1101 is fixed to the lower end of the measuring cylinder shell 6. A mounting block 1102 is connected to the lower end of the protrusion 1101. The mounting block 1102 is fitted and connected to the protrusion 1101. Bolt 1103 is connected to the inner side of the device. A second washer 1104 is connected to the surface of bolt 1103. Bolt 1103 is threadedly connected to second nut 1105. The device is inserted into mounting block 1102 through protrusion 1101 and locked by bolt 1103 and second nut 1105. This can fix mounting block 1102 to measuring cylinder shell 6 together, and facilitate disassembly. Weighing sensor 7 is electrically connected to weighing transmitter 8. Weighing transmitter 8 is electrically connected to load monitor 13. Weighing sensor 7 can accurately measure the vertical pressure borne by the hanging device. Then, weighing transmitter 8 stably transmits the digital signal to load monitor 13 to display the change in material weight in cyclone separator 11 in real time, which is convenient for operators to monitor and analyze.

[0023] A method for measuring the material level in a boiler cyclone separator, including the aforementioned boiler cyclone separator material level measuring device, comprises the following steps: The first step is initial weight calibration. With the cyclone separator 11 unloaded, its initial weight is measured and recorded by the weighing sensor 7. This weight is used as the reference value for subsequent measurements. The second step is real-time monitoring. The weighing sensor 7 is activated to continuously collect the weight data of the cyclone separator 11 and transmit and process it in real time through the weighing transmitter 8. The third step is weight change analysis, which compares the real-time monitored weight with the initial weight and calculates the weight change. An increase in weight indicates an increase in the degree of accumulation of particulate material, while a decrease in weight indicates the discharge of particulate material. The fourth step is to determine the degree of accumulation. Based on the weight change, the design parameters of the cyclone separator 11, and the material characteristics, a reasonable threshold is set. When the weight change exceeds the set threshold, an alarm is triggered to prompt the operator to take appropriate measures.

[0024] In use, first insert the connecting post 502 into the socket on the connector 501, then put on the first washer 503, and then tighten the first nut 504 so that the measuring cylinder shell 6 can be fixed on the connector 501. Then, insert the protrusion 1101 into the mounting block 1102, then insert the bolt 1103, then put on the second washer 1104 and tighten the second nut 1105, thereby fixing the mounting block 1102 under the measuring cylinder shell 6. Finally, weld the bottom of the mounting block 1102 to the cyclone separator 11 to complete the installation of the measuring equipment.

[0025] Through the above steps, the key components of the weighing sensor and weighing transmitter can be quickly disassembled and installed using the upper and lower connecting components. By designing high-temperature protection measures on the outside of the weighing sensor and weighing transmitter, the impact of high temperature on equipment performance is reduced. Furthermore, the load monitor can present the load status of each bearing point of the large cyclone separator to the operation monitoring personnel in an intuitive way, allowing the operators to conduct real-time assessment and adjustment of the boiler ash circulation. It can also provide overload alarms to solve the problems of difficulty in accurately monitoring the amount of fuel in the cylinder during the operation of existing cyclone separators, and the impact of high-temperature environment on the use of measuring equipment.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A boiler cyclone separator material level measuring device, comprising a material level measuring device body (1); characterized in that: It also includes a lifting rope (4), a weighing sensor (7), a weighing transmitter (8), a protection component (9), and a load monitor (13). The lower end of the main body (1) of the material level measuring device is fixed with a support foot (2). The lower end of the top of the main body (1) of the material level measuring device is fixed with a lifting ring (3). The lower end of the lifting ring (3) is connected to a lifting rope (4). The lower end of the lifting rope (4) is provided with an upper connecting component (5). The upper connecting component (5) includes a connector (501). The lower end of the upper connecting component (5) is connected to a measuring cylinder shell (6). A weighing sensor (7) is installed on the inner side of the shell (6), and a weighing transmitter (8) is installed on the upper end of the weighing sensor (7). A protective component (9) is provided on the outer side of the measuring cylinder shell (6). The protective component (9) includes a protective shell (901). A lower connecting component (10) is provided at the lower end of the measuring cylinder shell (6). A cyclone separator (11) is welded to the lower end of the lower connecting component (10). A mounting bracket (12) is fixed on the back of the main body (1) of the material level measuring device. A load monitor (13) is installed on the back of the mounting bracket (12).

2. The boiler cyclone separator material level measuring device according to claim 1, characterized in that: The lifting rings (3) are evenly spaced, and there are 16 lifting rings (3). The lifting ropes (4) are set one-to-one with the lifting rings (3).

3. The boiler cyclone separator material level measuring device according to claim 2, characterized in that: The lower end of the suspending rope (4) is connected to a connector (501), the lower end of the connector (501) is connected to a connecting post (502), the surface of the connecting post (502) is connected to a first washer (503), the surface of the connecting post (502) is connected to a first nut (504), and the first nut (504) is threadedly connected to the connecting post (502).

4. The boiler cyclone separator material level measuring device according to claim 1, characterized in that: A protective shell (901) is provided on the outside of the measuring cylinder (6), and an air inlet (902) is provided at the lower end of the protective shell (901). A miniature fan (903) is installed on the inside of the air inlet (902).

5. The boiler cyclone separator material level measuring device according to claim 4, characterized in that: A guide plate (904) is fixed on the inner side of the protective shell (901). The guide plate (904) has a spiral structure, and an air outlet (905) is opened on the surface of the protective shell (901).

6. The boiler cyclone separator material level measuring device according to claim 4, characterized in that: The inner side of the measuring cylinder shell (6) is provided with a heat insulation layer (906), which is made of silicate heat insulation material.

7. The boiler cyclone separator material level measuring device according to claim 5, characterized in that: The lower end of the measuring cylinder shell (6) is fixed with a protrusion (1101), and the lower end of the protrusion (1101) is connected to a mounting block (1102). The mounting block (1102) is fitted and connected to the protrusion (1101). The inner side of the mounting block (1102) is connected to a bolt (1103). The surface of the bolt (1103) is connected to a second washer (1104). The bolt (1103) is threadedly connected to a second nut (1105).

8. The boiler cyclone separator material level measuring device according to claim 1, characterized in that: The load cell (7) is electrically connected to the load transmitter (8), and the load transmitter (8) is electrically connected to the load monitor (13).

9. A method for measuring the material level in a boiler cyclone separator, characterized in that: The boiler cyclone separator level measuring device according to claim 1 comprises the following steps: The first step is to calibrate the initial weight. Under no-load conditions, the initial weight of the cyclone separator (11) is measured and recorded by the weighing sensor (7). The second step is to monitor in real time, start the weighing sensor (7), continuously collect the weight data of the cyclone separator (11), and transmit and process it in real time through the weighing transmitter (8). The third step is weight change analysis, which compares the real-time monitored weight with the initial weight and calculates the amount of weight change. The fourth step is to determine the degree of accumulation. The condition of the material inside the cyclone separator (11) is determined based on the change in weight.

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