Electrostatic dust precipitator

By designing an electronic dust collection cylinder and utilizing a lifting mechanism and automatic calibration device, the high energy consumption, high cost, and error problems of existing dust collection detection technologies have been solved, enabling accurate on-site dust collection monitoring.

CN110967275BActive Publication Date: 2025-11-11JIANGSU DUST CONTROL INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN201811157543.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2018-09-30
Publication Date
2025-11-11
Estimated Expiration
2038-09-30

AI Technical Summary

Technical Problem

Current dustfall measurement methods require laboratory testing, which is energy-intensive, costly, and prone to operational errors. Sample transportation is also inconvenient, making it difficult to achieve accurate on-site monitoring.

Method used

An electronic dust collection chamber is used, which consists of a measuring chamber, a dust collection chamber, a refrigeration unit, and a constant temperature and humidity chamber composed of temperature and humidity sensors. The dust collection amount is measured on-site using a lifting mechanism and a micro-weight sensor, and the measurement accuracy is ensured by an automatic calibration device.

Benefits of technology

It enables accurate monitoring of dustfall, reduces costs, avoids the inconvenience of sample transportation, and allows for automatic online measurement at the collection point.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides an electronic dust collection chamber, comprising a constant temperature and humidity chamber consisting of a measuring chamber, a dust collection chamber, a refrigeration unit, and temperature and humidity sensors. It utilizes a localized microenvironment to monitor dust collection volume. When not measuring, the tray is embedded in a heating plate, which is fixed to the dust collection chamber above the measuring chamber. The dust collection bin is placed on the heating plate. When measurement is required, the heating plate is lowered by a lifting mechanism, gradually detaching the tray from the heating plate. The tray then lifts the dust collection bin, transferring its entire weight onto the tray, which is then measured using a micro-weight sensor. This method achieves both high measurement accuracy and cost savings, and is flexible and convenient, allowing for direct on-site testing at the collection point, thus achieving automatic online monitoring.
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Description

Technical Field

[0001] This invention relates to the fields of environmental protection and safe production management technology, specifically to an electronic dust collection cylinder. Background Technology

[0002] Dustfall is the deposition of particulate matter in the atmosphere. It refers to the settling of airborne particulate matter into a dust collection tank containing an aqueous ethylene glycol solution. After evaporation, drying, and weighing, the amount of dustfall is calculated. With the increasing frequency and severity of sandstorms nationwide, research on atmospheric dustfall has intensified. Currently, monitoring of atmospheric dustfall typically requires personnel to travel back and forth to collect samples and bring the dust collection tanks back to the laboratory for testing.

[0003] Current dustfall measurement methods are primarily suitable for precision measurements in laboratory environments, such as weight measurements in environmental monitoring and chemical engineering. However, these methods require dedicated laboratories with constant temperature and humidity, resulting in high energy consumption and costs. Furthermore, different operators using the same sample can produce different data, leading to significant measurement errors. Additionally, if the dust collection point and the laboratory are not located together, sample transportation and storage must be considered, making the method extremely inconvenient. Summary of the Invention

[0004] To address the shortcomings of the existing technologies, the present invention aims to provide an electronic dust collection cylinder that uses a localized microenvironment to monitor dust collection levels. This approach satisfies both measurement accuracy and cost-effectiveness, while also offering flexibility and convenience. It allows for direct on-site testing at the collection point, achieving automatic online monitoring.

[0005] According to one aspect of the present invention, an electronic dust collection chamber is provided, comprising a constant temperature and humidity chamber consisting of a measuring chamber, a dust collection chamber, a refrigeration unit, a temperature and humidity sensor, and a controller. The measuring chamber and the dust collection chamber are separated by a partition. The dust collection chamber is located above the measuring chamber. The measuring chamber is provided with a micro-weight sensor fixed to the bottom of the measuring chamber and a lifting mechanism partially disposed in the measuring chamber. Another part of the lifting mechanism is disposed in the dust collection chamber. The dust collection chamber is provided with a heating plate, a tray, and a dust collection bucket. The heating plate is placed on the lifting mechanism, the heating plate is embedded in the tray, and the dust collection bucket is placed on the heating plate. The micro-weight sensor is connected to the tray via a measuring rod. A support arm is mounted on the measuring rod, and an automatic calibration device is provided at the end of the support arm away from the measuring rod.

[0006] Furthermore, in the aforementioned electronic dust collection cylinder, the lifting mechanism consists of at least one set of linear servo motors and at least one top head. The linear servo motors are fixed on the partition plate, the top head is fixed on the output shaft of the linear servo motors, and the heating plate is placed on the top head.

[0007] Furthermore, in the aforementioned electronic dust collection cylinder, the heating plate is provided with a perforated structure, and the top head cooperates with the perforated structure.

[0008] Furthermore, in the aforementioned electronic dust collection tube, the automatic calibration device comprises a geared motor, a geared motor output shaft, an eccentric wheel, a guide post, a guide groove, a top block, and a calibration weight. The geared motor output shaft and the eccentric wheel are placed inside the geared motor. The eccentric wheel contacts the bottom end of the top block. The top block is provided with a guide post and a guide groove. The guide post moves up and down along the guide groove. The upper end of the top block supports the inner circle of the calibration weight.

[0009] Furthermore, in the aforementioned electronic dust collection cylinder, the upper end of the top block is provided with a groove structure for placing calibration weights.

[0010] Furthermore, in the aforementioned electronic dust collection tube, the support arm comprises two parallel sheet-like structures, each of which has a groove for placing calibration weights.

[0011] Furthermore, in the aforementioned electronic dust collection tube, a calibration weight is placed between two parallel sheet-like structures on the upper end of the top block, and the grooves on the two sheet-like structures of the support arm extend to the inner circle of the calibration weight without contacting it.

[0012] Furthermore, in the aforementioned electronic dust collection bin, a collection port is provided above the dust collection bin.

[0013] Furthermore, in the aforementioned electronic dust collection cylinder, the collection port is fitted with a windproof cover.

[0014] Furthermore, in the aforementioned electronic dust collection cylinder, the collection port is equipped with a door mechanism, which is driven by an internal door motor.

[0015] Furthermore, in the aforementioned electronic dust collection cylinder, the door mechanism consists of two sets of door sliding grooves arranged opposite each other on the left and right.

[0016] Furthermore, in the aforementioned electronic dust collection cylinder, the collection port is equipped with a moving door mechanism controlled by a door guide rail.

[0017] Furthermore, in the aforementioned electronic dust collection cylinder, a camera is provided at the front end of the door mechanism.

[0018] Furthermore, in the aforementioned electronic dust collection bin, a filter membrane is provided inside the dust collection bin.

[0019] Furthermore, in the aforementioned electronic dust collection chamber, a rain sensor and a drain pipe are installed inside the dust collection chamber.

[0020] Furthermore, in the aforementioned electronic dust collection cylinder, the refrigeration unit is a semiconductor refrigeration unit or a compression refrigeration unit.

[0021] Furthermore, in the aforementioned electronic dust collection cylinder, when the refrigeration unit is a compression refrigeration unit, the compression refrigeration unit is also connected to an air duct.

[0022] Furthermore, in the aforementioned electronic dust collection cylinder, an air humidification device is installed inside the air duct.

[0023] Furthermore, in the aforementioned electronic dust collection cylinder, when the refrigeration unit is a semiconductor refrigeration unit, a humidifier is also provided inside the electronic dust collection cylinder.

[0024] Furthermore, the aforementioned electronic dust collection cylinder is equipped with a water inlet.

[0025] Compared with existing technologies, the electronic dust collection cylinder of this invention comprises a measuring chamber, a dust collection chamber, a refrigeration unit, and temperature and humidity sensors, forming a constant temperature and humidity chamber. It utilizes a localized microenvironment to monitor dust collection volume. When not measuring, the tray is embedded in a heating plate, which is fixed to the dust collection chamber above the measuring chamber. The dust collection bin is placed on the heating plate. When measurement is required, the heating plate is lowered by a lifting mechanism, gradually detaching the tray from the heating plate. The tray then lifts the dust collection bin, transferring its entire weight onto the tray, which is then measured by a micro-weight sensor. This method satisfies measurement needs, saves costs, and is flexible and convenient, allowing for direct on-site testing at the collection point and achieving automatic online monitoring. Furthermore, this invention can employ an automatic calibration device to calibrate the data from the micro-weight sensor as needed, ensuring measurement accuracy. Attached Figure Description

[0026] Figure 1 This is a top view of the electronic dust collection cylinder according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 BB section view of semiconductor electronic dust collection cylinder;

[0028] Figure 3 This is a front view of the electronic dust collection cylinder according to an embodiment of the present invention;

[0029] Figure 4 for Figure 3 A cross-sectional view of the semiconductor electronic dust collection cylinder from side AA;

[0030] Figure 5 This is a left view of the electronic dust collection cylinder according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the automatic calibration device before operation according to an embodiment of the present invention;

[0032] Figure 7 This is a front view of the support arm according to an embodiment of the present invention;

[0033] Figure 8This is a top view of the support arm according to an embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the automatic calibration device after operation according to an embodiment of the present invention;

[0035] Figure 10 This is a schematic diagram of the lifting mechanism structure according to an embodiment of the present invention;

[0036] Figure 11 for Figure 1 BB section view of a compression-type electronic dust collection cylinder. Detailed Implementation

[0037] To make the creative features, technical means, and objectives of this invention easier to understand, the invention is further described below in conjunction with specific embodiments.

[0038] like Figure 1-5 As shown, the present invention provides an electronic dust collection chamber, which includes a constant temperature and humidity chamber composed of a measuring chamber 1, a dust collection chamber 2, a refrigeration unit 3, a temperature and humidity sensor 4, and a controller 10. It adopts a local microenvironment approach to monitor the amount of dust collected.

[0039] In this embodiment of the invention, the measuring chamber 1 and the dust collection chamber 2 are separated by a partition 5. The dust collection chamber 2 is located above the measuring chamber 1. The measuring chamber 1 is equipped with a micro-weight sensor 11 fixed to the bottom of the measuring chamber and a lifting mechanism 12 partially disposed in the measuring chamber. The other part of the lifting mechanism 12 is placed inside the dust collection chamber 2. The dust collection chamber 2 is equipped with a heating plate 21, a tray 22 and a dust collection bucket 23. The heating plate 21 is placed on the lifting mechanism 12, the tray 22 is embedded in the heating plate 21, and the dust collection bucket 23 is placed on the heating plate 21. The micro-weight sensor 11 is connected to the tray 22 through a measuring rod 6.

[0040] In this invention, the tray 22 is embedded in the heating plate 21 when not being measured. The heating plate 21 is fixed to the dust collection chamber 2 and is located above the measuring chamber 1. The dust collection bucket 23 is placed on the heating plate 21. When measurement is required, the heating plate 21 is driven by the lifting mechanism 12 and lowered, causing the tray 22 to gradually detach from the heating plate 21. The tray 22 lifts the dust collection bucket 23, so that the entire weight of the dust collection bucket 23 is loaded onto the tray 22, and then transmitted to the micro-weight sensor 11 through the measuring rod 6 for measurement. This not only meets the measurement needs but also saves costs and is flexible and convenient, allowing for direct on-site testing at the collection point.

[0041] like Figure 6 As shown, in this embodiment of the invention, a support arm 61 is installed on the measuring rod 6. An automatic calibration device is provided at the end of the support arm 61 away from the measuring rod 6. When the device is powered on and when calibration is required, the data of the micro-weight sensor can be calibrated through the server command to meet the measurement accuracy.

[0042] Furthermore, such as Figure 6 As shown, the automatic calibration device of the present invention consists of a geared motor 31, a geared motor output shaft 32, an eccentric wheel 33, a guide post 34, a guide groove 35, a top block 36, and a calibration weight 37. The geared motor output shaft 32 and the eccentric wheel 33 are placed inside the geared motor 31. The eccentric wheel 33 is in contact with the bottom end of the top block 36. The top block 36 is provided with a guide post 34 and a guide groove 35. The guide post 34 moves up and down along the guide groove 35. The upper end of the top block 36 supports the inner circle of the calibration weight 37.

[0043] Preferably, the top block 36 has a groove structure 361 for placing calibration weights at its upper end.

[0044] Furthermore, such as Figure 7-8 As shown, the support arm 61 includes two parallel sheet structures 611 and 612, each of which has a groove 613 and 614 for placing calibration weights.

[0045] Furthermore, in the aforementioned electronic dust collection cartridge, such as Figure 6 As shown, the top block 36 passes through the two parallel sheet structures 611 and 612 of the support arm and places the calibration weight 37 between them. The grooves 613 and 614 on the two sheet structures of the support arm extend to the inner circle of the calibration weight and do not contact the calibration weight 37.

[0046] In this invention, when the calibration weight 37 is not calibrated, it is pushed upward by the eccentric wheel 33 on the output shaft 32 of the geared motor by the top block 36. The function of the guide post 34 is to keep the top block 36 moving along the direction of the guide groove 35. Figure 2 Part of the image shows the state when the automatic calibration device is not activated. In this state, the calibration weight 37, the measuring rod 6, and the support arm 61 are not in contact.

[0047] When calibration is required, the present invention controls the rotation of the reduction motor 31 via system commands, thereby driving the rotation of the eccentric wheel 33. The part of the eccentric wheel 33 in contact with the top block 36 will gradually move from the point farthest from the center to the point closest to the center. At the same time, the top block 36, due to the combined effect of its own weight and the weight of the calibration weight 37, will move downwards, and finally the calibration weight will fall completely onto the grooves 613 and 614 on the two plate-like structures of the support arm 61. Because the weight of the calibration weight 37 is a fixed value, the present invention can calibrate the data output by the microweight sensor using the measured data of the calibration weight, such as... Figure 9 The diagram shows the positional relationship of each component after the automatic calibration device is activated.

[0048] Furthermore, the lifting mechanism of the present invention consists of at least one linear servo motor and at least one top head. For example... Figure 10As shown, the lifting mechanism 12 provided in this embodiment of the invention consists of three sets of linear servos and three top heads, specifically, linear servo one 121, linear servo two 122, linear servo three 123, top head one 124, top head two 125, and top head three 126. In practice, linear servos one 121, linear servo two 122, and linear servo three 123 are fixed on the partition plate 5, and top heads one 124, top head two 125, and top head three 126 are respectively fixed on the output shafts of linear servos one 121, linear servo two 122, and linear servo three 123. The heating plate 21 is placed on top heads one 124, top head two 125, and top head three 126.

[0049] Preferably, the heating plate 21 of the present invention is provided with a hole structure, and the top head 124, top head 2 125 and top head 3 126 cooperate with the hole structure.

[0050] Furthermore, such as Figure 2 As shown, a collection port 24 is provided above the dust collection bin 23 of the present invention, and a windproof cover 241 is provided over the collection port 24. Placing the dust collection bin under the windproof cover can effectively reduce the impact of natural wind on dust settling inside the dust collection bin.

[0051] Furthermore, such as Figure 2 As shown, the acquisition port 24 is equipped with a door mechanism 25, which is driven by an internal door motor 26. Preferably, the door mechanism 25 consists of two sets of door slides 27 arranged opposite each other on the left and right.

[0052] Furthermore, such as Figure 11 As shown, the collection port is equipped with a moving door mechanism 25 controlled by a door guide rail 28.

[0053] In this embodiment of the invention, when measuring a sample, the door mechanism 25 is closed, placing the dust collection bin 23 and the weight sensor 11 in the same environment. The sample is then heated by the heating plate 21 to remove moisture. After the temperature and humidity sensor 4 detects that the sample moisture content meets the measurement standards, it adjusts the temperature and humidity of the enclosed environment until the measurement conditions are met. Then, the microweight sensor measures the data and uploads the test data, along with the environmental data from the test, to a remote server, achieving automatic online monitoring.

[0054] Preferably, in the above-mentioned electronic dust collection bin, the front end of the door mechanism 25 is equipped with a camera 251 to monitor in real time whether foreign objects such as leaves and insects enter the dust collection bin and clean them in a timely manner.

[0055] Furthermore, in the aforementioned electronic dust collection bin, a filter membrane is provided inside the dust collection bin 23. In practice, rainwater can be discharged into the bin through the filter membrane, allowing the dust to remain inside the bin.

[0056] Furthermore, in the aforementioned electronic dust collection bin, the dust collection chamber 2 is equipped with a rain sensor 28 and a drain pipe 29 (e.g., Figure 4 As shown in the figure, the rain sensor 28 is mainly used to monitor whether there is rain or water accumulation in the dust collection chamber, which may cause the drain pipe 29 to be unable to drain the water in time. In this way, the door mechanism 25 is closed in time through the server to prevent the water volume in the dust collection chamber from being too large and affecting the dustfall measurement.

[0057] Furthermore, in the aforementioned electronic dust collection cylinder, the refrigeration unit 3 is a semiconductor-type refrigeration unit 311 or a compression-type refrigeration unit 312. In this embodiment of the invention, the temperature within the electronic dust collection cylinder system can be adjusted through the operation of the refrigeration system.

[0058] Furthermore, such as Figure 11 As shown, when the refrigeration unit is a compression refrigeration unit 312, the compression refrigeration unit 312 is also connected to an air duct 313.

[0059] Preferably, in the above-mentioned electronic dust collection cylinder, an air humidification device 314 is installed in the air duct 313 to humidify the air humidity when the humidity is low in this invention.

[0060] Similarly, as Figure 2 As shown, when the refrigeration unit is a semiconductor refrigeration unit 311, a humidifier 315 is also provided inside the electronic dust collection cylinder.

[0061] Furthermore, in the aforementioned electronic dust collection tube, a water inlet 316 is provided on the electronic dust collection tube, which is used to add water to the air humidification device 314 or humidifier 315 when needed.

[0062] This invention calculates dustfall data for a given area by measuring the weight change of a dust collection bin. The dust collection bin uses an improved device with a filter membrane structure, allowing rainwater to drain into the bin while retaining dust. The bin is placed under a windproof cover to effectively reduce the impact of natural wind on dustfall. During sample measurement, the door mechanism is closed, placing the dust collection bin and weight sensor in the same environment. The sample is then heated to remove moisture. Once the temperature and humidity sensor detects that the sample moisture content meets the measurement standards, the temperature and humidity of the enclosed environment are adjusted until the measurement conditions are met. Data is then measured, and the test data, along with the environmental data from the test, is uploaded to a remote server.

[0063] In summary, this invention uses a localized microenvironment approach to monitor dustfall, which satisfies both measurement accuracy and cost savings. It is also flexible and convenient, allowing for direct on-site testing at the collection point to achieve automatic online monitoring.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An electronic dust collection cylinder, characterized in that, The system includes a constant temperature and humidity chamber consisting of a measuring chamber, a dust collection chamber, a refrigeration unit, temperature and humidity sensors, and a controller. The measuring chamber and the dust collection chamber are separated by a partition. The dust collection chamber is located above the measuring chamber. The measuring chamber contains a micro-weight sensor fixed to the bottom and a lifting mechanism partially located within it. The other part of the lifting mechanism is located within the dust collection chamber. The dust collection chamber contains a heating plate, a tray, and a dust collection bin. The heating plate is placed on the lifting mechanism, and the tray is embedded within it. The dust collection bin is placed on the heating plate. The micro-weight sensor is connected to the tray via a measuring rod. A support arm is mounted on the measuring rod, and an automatic calibration device is located at the end of the support arm furthest from the measuring rod. The automatic calibration device consists of a geared motor, a geared motor output shaft, an eccentric wheel, a guide column, a guide groove, a top block, and calibration weights. The system comprises a geared motor, an output shaft and an eccentric wheel housed within the geared motor, with the eccentric wheel contacting the bottom of a top block. The top block has guide posts and guide grooves, with the guide posts moving up and down along the guide grooves. The upper end of the top block supports the inner circle of a calibration weight. The upper end of the top block has a groove structure for placing the calibration weight. The support arm comprises two parallel sheet-like structures, each with a groove for placing the calibration weight. The upper end of the top block passes through the two parallel sheet-like structures of the support arm, placing the calibration weight between them. The grooves on the two sheet-like structures of the support arm extend to the inner circle of the calibration weight without contacting it. A collection port is located above the dust collection bin. The collection port is covered with a windproof cover. A rain sensor and a drain pipe are located inside the dust collection bin. A door mechanism is located on the collection port, driven by an internal door motor.

2. The electronic dust collection cylinder according to claim 1, characterized in that, The lifting mechanism consists of at least one set of linear servos and at least one top head. The linear servos are fixed to the partition plate, the top head is fixed to the output shaft of the linear servos, and the heating plate is placed on the top head.

3. The electronic dust collection cylinder according to claim 2, characterized in that, The heating plate has a perforated structure, and the top head mates with the perforated structure.

4. The electronic dust collection cylinder according to claim 1, characterized in that, The door mechanism consists of two sets of door tracks arranged opposite each other on the left and right.

5. The electronic dust collection cylinder according to claim 1, characterized in that, The collection port is equipped with a moving door mechanism controlled by a door guide rail.

6. The electronic dust collection cylinder according to claim 1 or 5, characterized in that, A camera is installed at the front end of the door mechanism.

7. The electronic dust collection cylinder according to claim 1, characterized in that, The dust collection bin is equipped with a filter membrane.

8. The electronic dust collection cylinder according to claim 1, characterized in that, The refrigeration unit is a semiconductor refrigeration unit or a compression refrigeration unit.

9. The electronic dust collection cylinder according to claim 7, characterized in that, When the refrigeration unit is a compression refrigeration unit, the compression refrigeration unit is also connected to an air duct.

10. The electronic dust collection cylinder according to claim 9, characterized in that, An air humidifier is installed inside the airway.

11. The electronic dust collection cylinder according to claim 8, characterized in that, When the refrigeration unit is a semiconductor refrigeration unit, a humidifier is also provided inside the electronic dust collection cylinder.

12. The electronic dust collection cylinder according to claim 10 or 11, characterized in that, The electronic dust collection tube is equipped with a water inlet.

Citation Information

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