Wear-resistant pulverized coal online anemograph

Abstract

The utility model relates to the technical field of anemographs, in particular to a wear-resistant pulverized coal online anemograph which comprises a rectifier, a ceramic protection tube is in threaded connection with one side of the rectifier, an insertion rod is inserted into the other end of the ceramic protection tube, and a small flange is arranged at the end, away from the ceramic protection tube, of the insertion rod. The end, away from the insertion rod, of the small flange is in threaded connection with a mounting flange, and the end, away from the small flange, of the mounting flange is provided with a supporting rod. According to the improved anemograph and the embedded type integrally-formed sensor in threaded installation, a better sealing effect can be provided, pulverized coal is prevented from invading and abrading the insertion rod, the insertion rod can be made to be ultra-strong in abrasion resistance, a rectifier can be conveniently replaced, and the use cost is reduced. Through the arrangement of the wear-resistant shell and the ceramic protection tube, the rectifier and sensitive parts in the insertion rod can be protected from being abraded and impacted by hard particles such as pulverized coal, so that the service life of equipment is prolonged, the maintenance cost is reduced, and the operation reliability of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anemograph, concretely is abrasion -resistant pulverized coal on -line anemograph. BACKGROUND

[0002] Pulverized coal wind speed refers to the flow rate of a mixture of pulverized coal and air in a pulverized coal conveying system. In a pulverized coal combustion system, the control of wind speed is very important because it affects the efficiency of pulverized coal conveying, the uniformity of combustion, and the heat exchange efficiency in the combustion chamber. The measurement of wind speed is usually done using anemometers or wind speed sensors, which can be installed in the piping system to monitor the wind speed in real time. The measurement of wind speed is crucial for optimizing combustion efficiency and reducing pollutant emissions. The control of pulverized coal wind speed needs to consider factors such as the particle size, density of the pulverized coal, the size and shape of the conveying pipe, etc.

[0003] Pulverized coal wind speed flow detection is commonly used in industrial fields such as power plants, cement plants, and chemical plants to monitor and control the wind speed and flow during the conveying of pulverized coal. Pulverized coal wind speed flow detection is crucial for ensuring combustion efficiency, preventing the deposition of pulverized coal, and ensuring production safety. When implementing pulverized coal wind speed flow detection, the characteristics of the pulverized coal, such as particle size, density, humidity, etc., and the temperature and pressure of the flow environment, etc., need to be considered to select appropriate detection techniques and equipment.

[0004] The inventor found that the existing technology has the following problems in the process of implementing the utility model: 1. The existing anemometer mainly uses segmented thread connection, which easily allows pulverized coal to invade from the gap and wear out the equipment; 2. When using the anemometer to detect the wind speed of the pulverized coal inside the pipe, the pulverized coal particles can cause wear to the core components, and the segmented assembly is not enough in overall rigidity and wear resistance. UTILITY MODEL CONTENT

[0005] The utility model discloses a abrasion -resistant pulverized coal on -line anemograph to solve the problem of the existing anemometer mainly using segmented thread connection, which easily allows pulverized coal to invade from the gap and wear out the equipment, and when using the anemometer to detect the wind speed of the pulverized coal inside the pipe, the pulverized coal particles can cause wear to the core components, and the segmented assembly is not enough in overall rigidity and wear resistance. In order to achieve the above purpose, the utility model provides the following technical scheme: an abrasion -resistant pulverized coal on -line anemograph, including rectifier, the one side of rectifier is screwed with ceramic protection pipe, the other end of ceramic protection pipe is inserted with the insertion rod, the end away from ceramic protection pipe of insertion rod is equipped with small flange, the end away from insertion rod of small flange is screwed with mounting flange, the end away from small flange of mounting flange is equipped with support rod, the other end of support rod is screwed with table head.

[0006] Further preferably, the rectifier 1 is provided with a trapezoidal column on the side of the air inlet end, and a piezoelectric sensor is arranged on the rear end of the trapezoidal column.

[0007] Further preferably, the ceramic protection tube is provided with a mounting screw plate on the end close to the rectifier, and the mounting screw plate and the rectifier are connected in an embedded flange connection.

[0008] Further preferably, the insertion rod is provided with an induction probe rod on the end close to the rectifier, and the induction probe rod penetrates into the interior of the rectifier.

[0009] Further preferably, the ceramic protection tube is provided with a retaining ring at the joint with the insertion rod.

[0010] Further preferably, the support rod and the surface head are connected in a threaded connection through a locking nut.

[0011] Further preferably, the rectifier and the insertion rod are provided with a wear-resistant shell on the outside.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In the utility model, the ceramic protection tube and the rectifier are connected in an embedded flange connection through the mounting screw plate, so that the entire insertion rod and the rectifier form a wear-resistant protective sensor. In actual detection, the ceramic protection tube can effectively protect the insertion rod from being abraded by coal particles due to its high hardness and wear resistance, thereby prolonging the service life of the instrument. The embedded flange installation of the mounting screw plate can provide better sealing effect, prevent coal particles and other particulate matters from entering the interior of the insertion rod, ensure the measurement accuracy and long-term stable operation of the equipment, and due to the integral molding of the ceramic protection tube and the rectifier, the sensor reduces the connection points and welding points, thereby improving the strength and durability of the overall structure, especially in the harsh environment of abrasive coal and the like, the sensor can withstand greater scouring stress and abrasion, and the integrated structure also reduces the potential leakage points and the risk of loosening of the connection structure, improves the safety, stability and reliability of the equipment operation, and provides reliable data monitoring for the safety of the boiler combustion speed measurement.

[0014] The utility model discloses a rectifier and the outside of the insertion rod is provided with wear -resisting shell, and its wear -resisting shell can protect rectifier and the inside sensitive component of insertion rod, makes it avoid the wear and tear and impact of hard particle such as coal powder, thereby prolongs the service life of equipment, and wear -resisting shell is made of hard material, can resist the wear and tear of coal powder, ensures the durability and reliability of rectifier and insertion rod under the bad working condition, wear -resisting shell can also prevent the harmful substance in coal powder from entering rectifier and insertion rod inside, thereby reducing the corrosion to electronic component and the influence to measurement accuracy, not only improve the durability of equipment, also ensure the accuracy of measurement, and the ceramic protection tube of insertion rod outer wall sleeve joint has very high wear resistance, can resist the wear and tear of hard particle such as coal powder to insertion rod, protects insertion rod from being damaged, makes insertion rod also can keep good state under the bad working condition, effectively prolongs the overall life of insertion rod, and because of the wear -resistant characteristics of ceramic protection tube, also can reduce the replacement frequency of insertion rod due to wear and tear, thereby reducing maintenance cost and improving the operation reliability of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view structure schematic diagram of the utility model;

[0016] Figure 2 It is the front view sectional structure schematic diagram of the utility model;

[0017] Figure 3 It is the rectifier structure schematic diagram of the utility model;

[0018] Figure 4 It is the top view structure schematic diagram of the utility model.

[0019] In the drawing: 1, rectifier;101, trapezoidal column;102, piezoelectric sensor;2, ceramic protection tube;201, mounting screw plate;202, baffle ring;3, insertion rod;301, inductive probe rod;4, small flange;5, mounting flange;6, support rod;601, locking nut;7, meter head. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0021] Please refer to Figures 1 to 4The utility model provides a technical scheme: wear -resisting coal powder on -line anemograph, including rectifier 1, the one side of rectifier 1 is provided with ceramic protection tube 2, and the other end of ceramic protection tube 2 is inserted with insertion rod 3, and the one end of insertion rod 3 away from ceramic protection tube 2 is equipped with small flange 4, and the one end of small flange 4 away from insertion rod 3 is provided with installation flange 5, and the one end of installation flange 5 away from small flange 4 is equipped with support 6, and the other end of support 6 is provided with table head 7.

[0022] In the embodiment, as shown in Figure 2 and Figure 3 The rectifier 1 is provided with a trapezoidal column 101 on the air inlet side, and the rear end of the trapezoidal column 101 is provided with a piezoelectric sensor 102. It should be noted that the operator needs to connect the rectifier 1 with the pipeline to be measured. After the coal powder gas flow in the pipeline enters the rectifier 1 from the air inlet end, it will successively contact the trapezoidal column 101 and the piezoelectric sensor 102. During this period, the design of the trapezoidal column 101 can enhance the vortex effect generated when the coal powder flows through the rectifier 1, thereby improving the accuracy and linearity of the vibration frequency detected by the piezoelectric sensor 102, and further improving the accuracy of the wind speed measurement. Through the vibration frequency of the vortex, the piezoelectric sensor 102 can detect a strong signal. After amplification and conversion, these signals will be converted into signals proportional to the flow rate. The flow rate is displayed at the rectifier table head 7, so that the wind speed can be more accurately reflected. At the same time, the trapezoidal column 101 inside the rectifier 1 helps to disperse the direct impact of the coal powder particles on the sensor, reduces wear and tear, and prolongs the service life of the equipment. The piezoelectric sensor 102 can work stably in harsh environments such as coal powder due to its strong environmental adaptability, and can respond quickly to changes in vibration frequency through its high sensitivity, thereby being suitable for real-time monitoring of changes in coal powder flow rate.

[0023] In the embodiment, as shown in Figure 3 and Figure 4As shown, the ceramic protective tube 2 is provided with a mounting screw plate 201 at one end close to the rectifier 1, and is connected with the rectifier 1 in an embedded threaded connection through the mounting screw plate 201; it should be noted that the ceramic protective tube 2 is sleeved on the part of the insertion rod 3 close to the rectifier 1, and is connected with the rectifier 1 in an embedded threaded connection through the mounting screw plate 201, so that the entire insertion rod 3 and the rectifier 1 form an integrally formed sensor, and in actual detection, the ceramic protective tube 2 can effectively protect the insertion rod 3 from being worn by coal particles due to its extremely high hardness and wear resistance, thereby prolonging the service life of the instrument, and the embedded threaded installation of the mounting screw plate 201 can provide better sealing effect to prevent coal particles and other particulate matters from entering the inside of the insertion rod 3, thereby ensuring the measurement accuracy and long-term stable operation of the equipment, and since the ceramic protective tube 2 and the rectifier 1 are integrally formed, the sensor reduces the connection points and welding points, thereby improving the strength and durability of the overall structure, especially in harsh environments such as wear-resistant coal, which can withstand greater pressure and wear, and the integrated structure also reduces the risk of potential leakage and loosening, improves the safety of equipment operation, and helps to improve the stability and reliability of the equipment, thereby improving the performance of the entire wind speed monitoring system.

[0024] In the embodiment, as shown in Figure 2 and Figure 3 , the insertion rod 3 is provided with a sensing probe 301 at one end close to the rectifier 1, and the sensing probe 301 penetrates the inside of the rectifier 1; it should be noted that in the utility model, the insertion rod 3 and the rectifier 1 adopt an insertion structure, and the sensing probe 301 provided at one end of the insertion rod 3 can penetrate the inside of the rectifier 1 and be located at one end of the piezoelectric sensor 102, in actual use, the insertion of the sensing probe 301 into the inside of the rectifier 1 can increase the connection stability between the insertion rod 3 and the rectifier 1, reduce loosening or falling caused by vibration or impact during measurement, and since the sensing probe 301 of the insertion rod 3 is directly inserted into the inside of the rectifier 1 and located at one side of the piezoelectric sensor 102, it can directly collect signals converted by the piezoelectric sensor 102, so that the sensing probe 301 can more accurately and stably transmit the wind speed signal to the meter head 7 and display it.

[0025] In the embodiment, as shown in Figure 3 and Figure 4The ceramic protection tube 2 is provided with a check ring 202 at the joint with the insertion rod 3; it should be noted that the ceramic protection tube 2 is arranged outside the insertion rod 3 in the utility model, so as to avoid direct contact with the coal particles, and the check ring 202 is further arranged at the joint of the ceramic protection tube 2 and the insertion rod 3, so as to further fix the position connection of the ceramic protection tube 2 and the insertion rod 3; in actual use, the check ring 202 can enhance the structural stability of the connection of the ceramic protection tube 2 and the insertion rod 3, so as to ensure that the ceramic protection tube 2 will not fall off or be damaged in the environment of high wear or high pressure, and the check ring 202 can also prevent the connection of the ceramic protection tube 2 and the insertion rod 3 from being directly rubbed, so as to protect the connection part from being worn, thereby ensuring the safety of the insertion rod 3 and the ceramic protection tube 2, and at the same time, the arrangement of the check ring 202 can increase the sealing property between the insertion rod 3 and the ceramic protection tube 2, prevent the coal powder or other particulate matters from entering the inside of the ceramic protection tube 2 from the gap, and thus cause damage to the insertion rod 3, and also avoid affecting the accuracy of the wind speed measurement.

[0026] In the embodiment, as shown in Figure 2 and Figure 4 , the support rod 6 and the table head 7 are connected through the locking nut 601; it should be noted that the support rod 6 and the table head 7 are connected through the locking nut 601 in the utility model, and the two can be assembled and disassembled with each other, and in actual use, the locking nut 601 allows the operator to easily adjust the assembly and disassembly of the table head 7 and the support rod 6, so as to adapt to various angle observations, and at the same time, the design of the threaded connection is also convenient for disassembly and maintenance, when the table head 7 needs to be replaced or repaired, the operator can quickly disassemble the table head 7 and the support rod 6, so as to replace or repair them, and the locking nut 601 can ensure that the connection between the table head 7 and the support rod 6 is more stable and firm, so as to prevent the table head 7 from loosening due to vibration or impact during the measurement process, and at the same time, the use of the locking nut 601 can provide a certain sealing property, which helps to prevent the coal powder and other particulate matters from entering the inside of the table head 7, so as to protect the measurement equipment and circuit inside from being damaged.

[0027] In the embodiment, as shown in Figure 1 and Figure 4As shown, the rectifier 1 and the outside of the insertion rod 3 are provided with wear-resistant shells; it needs to be explained that, in the utility model, wear-resistant shells are arranged on the outside of the rectifier 1 and the insertion rod 3 away from the one end of the ceramic protection tube 2, the wear-resistant shells can protect the sensitive components inside the rectifier 1 and the front section of the insertion rod 3, so that the two can avoid being worn and impacted by hard particles such as coal powder, thereby prolonging the service life of the equipment, and the wear-resistant shells are made of hard materials, can resist the wear of coal powder, ensure the durability and reliability of the rectifier 1 and the insertion rod 3 under harsh working conditions, and the wear-resistant shells can also prevent harmful substances in the coal powder from entering the inside of the rectifier 1 and the insertion rod 3, thereby reducing the corrosion of electronic components and the influence on measurement accuracy, not only improving the durability of the equipment, but also ensuring the accuracy of measurement.

[0028] The use method and advantages of the utility model are as follows:

[0029] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , first, the support rod 6 and the meter head 7 are fixed by the locking nut 601 to ensure stable connection, and the small flange 4 of the insertion rod 3 is connected with the mounting flange 5 of the support rod 6 to ensure firm combination of the insertion rod 3 and the support rod 6, and the sensing probe 301 of the insertion rod 3 is inserted into the inside of the rectifier 1, and the ceramic protection tube 2 wraps the one end of the insertion rod 3 close to the rectifier 1 to protect it from being worn by coal particles, in the process of measuring the wind speed of coal powder, the coal powder airflow enters the inside of the rectifier 1 from the air inlet end thereof, and successively contacts the trapezoidal column 101 and the piezoelectric sensor 102, during which, the design of the trapezoidal column 101 can enhance the vortex effect generated when the coal powder flows through the rectifier 1, through the vibration frequency of the vortex, the piezoelectric sensor 102 can detect strong signals, and after amplification and conversion, the signals are converted into signals proportional to the flow rate. During this period, the ceramic protection tube 2 can resist the wear of hard particles such as coal powder on the insertion rod 3, and protect the insertion rod 3 from being damaged, and through the embedded thread installation of the mounting plate 201, better sealing effect can be provided to prevent particles such as coal powder from entering the inside of the insertion rod 3, thereby ensuring the measurement accuracy and long-term stable operation of the equipment, and because of the wear-resistant shells outside the ceramic protection tube 2 and the rectifier 1, the internal sensitive components of the rectifier 1 and the insertion rod 3 can be protected, so that they can avoid being worn and impacted by hard particles such as coal powder, thereby prolonging the service life of the equipment, and at the same time, the arrangement of the locking nut 601 can help the operator to easily disassemble the meter head 7 and the support rod 6, thereby performing necessary maintenance or replacement operation.

[0030] The basic principle, main features and advantages of the present application are shown and described above. The technical personnel in the industry should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A coal dust abrasion resistant on-line anemometer comprising a rectifier (1), characterized in that: One side of the rectifier (1) is screwed with a ceramic protection tube (2), the other end of the ceramic protection tube (2) is inserted with an insertion rod (3), the end of the insertion rod (3) away from the ceramic protection tube (2) is provided with a small flange (4), the end of the small flange (4) away from the insertion rod (3) is screwed with a mounting flange (5), the end of the mounting flange (5) away from the small flange (4) is provided with a support rod (6), the other end of the support rod (6) is screwed with a meter head (7).

2. The on-line pulverized coal wear rate monitor of claim 1 wherein: The air inlet end of the rectifier (1) is provided with a trapezoidal column (101), and the rear end of the trapezoidal column (101) is provided with a piezoelectric sensor (102).

3. The abrasion-resistant pulverized-coal online wind-speed meter of claim 1, wherein: The end of the ceramic protection tube (2) close to the rectifier (1) is provided with a mounting screw plate (201), and the mounting screw plate (201) is embeddedly screwed with the rectifier (1).

4. The abrasion-resistant pulverized-coal online wind-speed meter of claim 1, wherein: The end of the insertion rod (3) close to the rectifier (1) is provided with an induction probe rod (301), and the induction probe rod (301) penetrates the inside of the rectifier (1).

5. The abrasion-resistant pulverized-coal online wind-speed meter according to claim 3, characterized in that: The joint of the ceramic protection tube (2) and the insertion rod (3) is provided with a check ring (202).

6. The abrasion-resistant pulverized-coal online wind-speed meter of claim 3, characterized in that: The support rod (6) and the meter head (7) are screwed through a locking nut (601).

7. The abrasion-resistant pulverized-coal online wind-speed meter according to claim 6, characterized in that: The outside of the rectifier (1) and the insertion rod (3) is provided with a wear-resistant shell.

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