Energy-saving and environment-friendly haze detection device

Abstract

The invention discloses an energy-saving and environment-friendly haze detection device, and relates to the technical field of haze detection.The energy-saving and environment-friendly haze detection device comprises a device body, an air conveying pipe fixedly communicates with the device body, a shielding plate is installed at the upper end of the air conveying pipe in a sealed clamping mode, and a detection assembly is arranged at the lower end of the shielding plate and used for detecting the haze concentration; and a driving assembly is arranged in the device main body. The haze detection device has the advantages that the haze concentration can be detected in real time through the cooperation of the membrane and the sensing assembly, and the power required for sampling during operation of the device is adaptively adjusted according to the detection result, so that the detection effect of the device on different haze concentrations can be effectively improved; meanwhile, the energy-saving and environment-friendly effects of the operation of the device can be improved, and the sensitivity of the device for continuously monitoring the haze concentration and the sensitivity of adaptively adjusting the operation sampling power of the device according to a detection result can be improved through the cooperation of a transmission part and a plurality of scrapers.

Description

Technical Field

[0001] This invention relates to the field of haze detection technology, and in particular to an energy-saving and environmentally friendly haze detection device. Background Technology

[0002] With the acceleration of industrialization and urbanization, air pollution has gradually evolved from a localized phenomenon into a regional and normalized problem. Among them, the core pollutants of smog pollution are fine particulate matter such as PM2.5 and PM10. These pollutants can penetrate the respiratory barrier and enter the bloodstream. Long-term exposure can induce asthma, lung cancer, cardiovascular diseases, and other diseases, endangering human health. At the same time, smog pollution also reduces atmospheric visibility (forming haze), affecting transportation and aviation safety, as well as acidifying soil, polluting water bodies, and destroying plant photosynthesis, causing long-term impacts on agricultural production and the stability of ecosystems. Therefore, in order to take appropriate protective measures in a timely manner according to the smog concentration, smog monitoring devices (such as beta-ray particulate matter concentration meters) are usually set up outdoors or in designated locations to monitor the smog concentration in the air in real time. Traditional beta-ray particulate matter concentration analyzers are mostly continuous long-term operating devices, and the sampling pumps used for internal sampling mostly operate at "constant power." That is, regardless of the concentration of haze in the air, they maintain a fixed power output, forcibly maintaining a sampling flow rate of 16.7 L / min (the minimum effective sampling flow rate required by national standards). However, the concentration of haze in the air is affected by factors such as time-of-day activity differences (such as morning and evening commuting peak hours, surges in vehicle exhaust emissions, etc.), fluctuations in meteorological conditions, and dynamic changes in pollution sources. Its concentration will deviate at different stages. If the sampling pump continues to operate at a constant high power when the concentration of haze in the air decreases, a phenomenon of "power exceeding actual needs" will occur, increasing the operating cost of the device (such as electricity costs). Moreover, the long-term high-power operation of existing analyzers can also reduce the service life of the device. Therefore, we propose an energy-saving and environmentally friendly haze detection device to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to solve the problems mentioned in the background art by proposing an energy-saving and environmentally friendly smog detection device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An energy-saving and environmentally friendly smog detection device includes a device body, an air supply pipe fixedly connected to the device body, a baffle plate sealed and fitted at the upper end of the air supply pipe, a detection component at the lower end of the baffle plate for detecting smog concentration, a drive component inside the device body, and an adjustment component inside the device body for adaptively adjusting the sampling flow rate in cooperation with the drive component. The detection assembly includes a rotating shaft rotatably mounted on the lower end of the baffle plate, a coarse screen rotatably mounted on the rotating shaft, a fine screen rotatably mounted on the rotating shaft, multiple scrapers fixedly mounted on the rotating shaft, and a sensing mechanism jointly installed between the rotating shaft and the air duct. The drive assembly includes a telescopic rod rotatably mounted on the inner wall of the device body, an eccentric conical cylinder fixedly mounted on the telescopic end of the telescopic rod, a drive component installed between the telescopic rod and the device body, and an air collection component installed below the air duct.

[0005] Compared with existing technologies, the advantages of this invention are: 1. In the initial stage of haze concentration detection, the present invention can drive the piston to sample the gas at a lower reciprocating speed and a shorter piston reciprocating stroke through the cooperation of the driving component and the gas collection component. This can help reduce the initial operating cost of the device and improve its energy-saving and environmental protection effect.

[0006] 2. In detecting haze concentration, this invention, through the cooperation of a sensing mechanism and a diaphragm, enables real-time detection of haze concentration levels. Furthermore, through the cooperation of the diaphragm, adjustment components, and drive components, the reciprocating speed and stroke of the piston are adaptively increased or decreased based on the detection results. This allows the device to adaptively adjust its sampling flow rate (i.e., sampling power) according to the haze concentration, thereby effectively improving the detection performance for different haze concentrations and contributing to the energy-saving and environmentally friendly operation of the device.

[0007] 3. In detecting haze concentration, this invention, through the coordination of the adjustment component and the transmission component, can intermittently drive the scraper to clean the coarse and fine screens. This helps to improve the sensitivity and accuracy of continuous haze concentration detection by the coordination of the coarse and fine screens and the membrane, as well as improve the sensitivity and accuracy of adaptive adjustment of the sampling flow rate of the device based on the haze concentration detection results, in coordination with the adjustment and drive components. This contributes to the device's continuous detection effect on different haze concentrations. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of an energy-saving and environmentally friendly smog detection device proposed in this invention; Figure 2 for Figure 1 A frontal view of the main body of the central unit and the air duct after partial cross-section; Figure 3 for Figure 2 A three-dimensional schematic diagram of a medium-voltage air duct; Figure 4 for Figure 3 A schematic diagram of the components at the lower end of the central baffle. Figure 5 for Figure 3 A schematic diagram of the structure of the induction mechanism; Figure 6 for Figure 5 Schematic diagram of the structure of the power transmission component; Figure 7 for Figure 2 A three-dimensional structural diagram of the drive component; Figure 8 for Figure 7 Schematic diagram of the drive component; Figure 9 for Figure 7 Top view of the gas collector component; Figure 10 for Figure 9 A three-dimensional schematic diagram; Figure 11 for Figure 7 A schematic diagram of the structure of the adjustment component; Figure 12 for Figure 11 A front view of the component connecting the central rod and the cylinder; Figure 13 for Figure 7 Schematic diagram of the push-pull component; Figure 14 for Figure 11 Schematic diagram of the transmission components; Figure 15 for Figure 14 A schematic diagram of the structure of the component connecting the middle cylinder and the spur gear.

[0009] In the diagram: 1. Main body of the device; 2. Air duct; 3. Baffle plate; 4. Detection components; 41. Rotating shaft; 42. Rotating gear one; 43. Coarse screen; 44. Fine screen; 45. Scraper; 46. Support plate; 47. Return spring; 48. Diaphragm; 49. Circular roller; 410. Rotating rod; 411. Rotating gear two; 412. Drive rod; 413. Pressing plate; 5. Drive assembly; 51. Air collection cylinder; 52. Servo motor; 53. Rotating shaft; 54. Drive cylinder; 55. Telescopic rod; 56. Drive wheel; 57. Eccentric conical cylinder; 58. Push-pull rod; 59. Compression spring; 510. Piston; 511. One-way air inlet pipe; 512. One-way air outlet pipe; 6. Adjustment assembly; 61. Limiting plate; 62. Round rod; 63. Rack frame; 64. Threaded rod; 65. Drive frame; 66. Parallel shaft gear; 67. Positioning rod; 68. Adjustment plate; 69. Baffle; 610. Cylinder; 611. Connecting rod; 612. Rack; 613. Spur gear; 614. Slot; 615. Spring block. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] Reference Figures 1-15 An energy-saving and environmentally friendly haze detection device includes a device body 1, an air supply pipe 2 fixedly connected to the device body 1, a shield 3 sealed and installed at the upper end of the air supply pipe 2, a detection component 4 set at the lower end of the shield 3 for detecting haze concentration, a drive component 5 set inside the device body 1, and an adjustment component 6 set inside the device body 1 for adaptively adjusting the sampling flow rate in cooperation with the drive component 5.

[0012] The drive assembly 5 includes a telescopic rod 55 rotatably mounted on the inner wall of the device body 1. An eccentric conical cylinder 57 is fixedly mounted on the telescopic end of the telescopic rod 55. A drive component is installed between the telescopic rod 55 and the device body 1. An air collection component is installed under the air duct 2.

[0013] The driving component includes a servo motor 52 fixedly installed on the inner wall of the main body 1 of the device. A rotating shaft 53 is fixedly installed on the driving end of the servo motor 52. A driving cylinder 54 is fixedly installed on the rotating shaft 53. A driving wheel 56 that cooperates with the driving cylinder 54 is fixedly installed on the fixed end of the telescopic rod 55.

[0014] The air collection component includes an air collection cylinder 51 fixedly connected to the lower end of the air supply pipe 2. A push-pull rod 58, which is sealed through and slidably installed on the air supply pipe 2 and cooperates with the eccentric conical cylinder 57, is fixedly installed between the push-pull rod 58 and the air supply pipe 2. A piston 510 is fixedly installed on the push-pull rod 58 and is sealed and slidably installed inside the air collection cylinder 51. A one-way air inlet pipe 511 is fixedly installed on the inner wall of the air supply pipe 2. A one-way air outlet pipe 512 is fixedly connected to the lower end of the air collection cylinder 51.

[0015] When the device is needed to detect the concentration of haze in the air, the servo motor 52 is started first. When the servo motor 52 is running, it can drive the drive cylinder 54 to rotate through the rotating shaft 53. During the rotation of the drive cylinder 54, the drive cylinder moves through the drive grooves that are evenly distributed in a ring on it (in conjunction with...). Figure 8 As can be seen, the drive wheel 56 can rotate together with the telescopic rod 55 and the eccentric conical cylinder 57. During the rotation of the eccentric conical cylinder 57, a rightward thrust is intermittently applied to the push-pull rod 58 through the eccentric conical cylinder 57 (e.g., Figure 9(As shown in the direction), in conjunction with the intermittent leftward resetting driving force applied to the push-pull rod 58 by the compression spring 59, the push-pull rod 58 can drive the piston 510 to move back and forth.

[0016] When the push-pull rod 58 drives the piston 510 to move intermittently to the right (e.g.) Figure 9 (As shown in the direction), through the cooperation of the air supply pipe 2 and the one-way air inlet pipe 511, external gas can be intermittently drawn into the gas collection cylinder 51 to collect the gas. When the push-pull rod 58 is forced to drive the piston 510 to move to the left intermittently and reset, the gas collected inside the gas collection cylinder 51 can be discharged into the conventional haze concentration monitoring instrument installed inside the main body 1 of the device through the one-way exhaust pipe 512 to detect the haze concentration in the collected gas.

[0017] Furthermore, when the servo motor 52 is running, it drives the telescopic rod 55 to rotate through the drive cylinder 54 and the drive wheel 56. According to the formula for linear velocity in circular motion, v=ωr (where v is linear velocity, ω is angular velocity, and r is the radius of the circle), the angular velocity ω is the same at all points on the drive cylinder 54, but the radius r of the drive cylinder 54 gradually increases from top to bottom (i.e., as shown in the diagram). Figure 8 As shown, the radius of the drive cylinder 54 gradually increases from the upper left to the lower right. Therefore, according to the linear velocity formula v=ωr, the linear velocity of the drive cylinder 54 gradually increases from the upper left to the lower right. Specifically, the upper left radius of the drive cylinder 54 is small, and its linear velocity is relatively small, resulting in a shorter arc length rotated in the same amount of time. That is, when the drive wheel 56 contacts the drive groove on the upper left side of the drive cylinder 54, the drive cylinder 54 drives the drive wheel 56 and the telescopic rod 55 to rotate at a relatively slow speed through its upper drive groove. Conversely, the lower right radius of the drive cylinder 54 is large, and its linear velocity is high. The radius is also larger, and the arc length rotated in the same amount of time is longer. When the drive wheel 56 contacts the drive groove on the lower right side of the drive cylinder 54, the drive cylinder 54 drives the drive wheel 56 and the telescopic rod 55 to rotate at a faster speed through its drive groove (for example, when the rocking horse platform rotates, the rocking horse that is closer to the central axis and has a smaller radius rotates at a slower speed than the rocking horse that is farther away from the central axis and has a larger radius). In this way, when the drive wheel 56 contacts the drive cylinder 54 at different radii, the drive cylinder 54 drives the drive wheel 56 and the telescopic rod 55 to rotate at different speeds through its multiple drive grooves.

[0018] The mechanical power output of the servo motor 52 depends entirely on its load resistance. That is, when the servo motor 52 operates in conjunction with the drive component and the gas collection component, and the piston 510 moves back and forth to sample (i.e. collect gas), the faster the piston 510 moves back and forth, the greater the load resistance that the servo motor 52 needs to overcome, and the greater the power output of the servo motor 52, and the more electrical energy it needs to input (power consumption). Conversely, the slower the speed, the less power it consumes. This is completely consistent with the logic that "a fan that spins fast consumes more power and a fan that spins slowly consumes less power." Therefore, based on the above description, in order to reduce the continuous operating cost of the device and improve its energy-saving and environmental protection effect during continuous operation, the upper left end of the drive cylinder 54 can be set to contact the drive wheel 56 during the initial operation of the device (e.g., Figure 8 (As shown in the state), at this time, the servo motor 52 is running. In cooperation with the drive component and the air collection component, the drive piston 510 moves back and forth slowly. The servo motor 52 has a low output power and requires less electrical energy. This can help reduce the initial operating cost of the device and improve its energy-saving and environmental protection effect.

[0019] Meanwhile, according to the above description, when the device, i.e. the servo motor 52, is running at low power in the initial stage of operation, the total amount of gas collected by the piston 510 reciprocating under force will also decrease. That is, the sampling flow rate of the device per unit time will decrease at this time. At this time, the device is suitable for detection during periods of low haze concentration. Because when the haze concentration in the air is low, there are fewer and more uniformly distributed particulate matter in the air. At this time, a small amount of sampling can represent the overall concentration of the environment. At this time, the air sampling flow rate of the device can be reduced to 8-10 L / min.

[0020] In addition, combined Figure 9 It can be seen that the eccentric conical cylinder 57 is eccentrically designed, and its eccentric distance gradually increases from top to bottom. The intermittent rightward movement of the push-pull rod 58 depends on the size of the eccentric distance of the eccentric conical cylinder 57. Therefore, as the contact radius between the push-pull rod 58 and the eccentric conical cylinder 57 gradually increases, the stroke of the eccentric conical cylinder 57 in conjunction with the compression spring 59, driving the push-pull rod 58 and the piston 510 to reciprocate, will also increase accordingly.

[0021] The formula for calculating the sampling flow rate is Q = S × L × f, where Q is the sampling flow rate (in L / min). S is the effective cross-sectional area of ​​piston 510 (fixed value), L is the reciprocating stroke of piston 510, and f is the reciprocating frequency of piston 510 (i.e., reciprocating speed, in times / min). Therefore, when the device is sampling and detecting low-concentration haze, in order to improve the energy-saving and environmental protection characteristics of the device, the reciprocating speed of piston 510 can be reduced. Further reducing the reciprocating stroke of piston 510 can help to further improve the energy-saving and environmental protection effect of the device in continuously sampling and detecting haze concentration.

[0022] Therefore, based on the above description, the uppermost end of the eccentric conical cylinder 57 can be set at the initial stage of operation of the device (e.g., Figure 9(As shown in the direction) When the piston 510 contacts the push-pull rod 58, the eccentric conical cylinder 57 cooperates with the compression spring 59 to drive the push-pull rod 58 to reciprocate with the shortest stroke distance. By shortening the single reciprocating stroke of the piston 510, it can help reduce the "work done per cycle" (work W=F load×2L, where 2L is the total stroke per round trip) required for the servo motor 52 to drive the piston 510. This is more energy-efficient than simply reducing the reciprocating speed of the piston 510. In low-concentration scenarios, the number of particles per unit volume is small, and high-flow sampling is not required (high flow will lead to long-term idleness of the sampling medium and waste of energy). At this time, by "reducing speed + reducing stroke", the sampling flow rate of the device is reduced. This can ensure that the device collects enough effective particles per unit time (to meet the detection accuracy) and reduce the ineffective wear of the sampling components inside the device. This achieves energy saving and environmental protection, and also helps to improve the service life of the device.

[0023] Reference Figures 2-6 The detection component 4 includes a rotating shaft 41 rotatably mounted on the lower end of the baffle plate 3, a coarse screen 43 rotatably mounted on the rotating shaft 41, a fine screen 44 rotatably mounted on the rotating shaft 41, a plurality of scrapers 45 fixedly mounted on the rotating shaft 41, and a sensing mechanism jointly installed between the rotating shaft 41 and the air duct 2.

[0024] The sensing mechanism includes fixed blocks that are uniformly and annularly fixed to the inner wall of the air supply pipe 2. Each fixed block is equipped with a return spring 47. A diaphragm 48 is fixedly mounted between the return springs 47 and is slidably and sealingly mounted on the inner wall of the air supply pipe 2. A support plate 46 is fixedly mounted on the inner wall of the air supply pipe 2. A roller 49 is fixedly mounted at the lower end of the diaphragm 48, and the roller 49 passes through and slidably mounts on the support plate 46. An elastic diaphragm (shown in the figure but not labeled) is fixedly mounted on the air supply pipe 2. Figure 5 As can be seen, the elastic membrane 1 itself can facilitate the compression and stretching of the pressing plate 413 when it moves up and down under force. At the same time, the elastic membrane 1 can also ensure the sealing of the air supply pipe 2. The pressing plate 413 is fixedly installed at the lower end of the roller 49, and the pressing plate 413 passes through and is fixedly installed on the elastic membrane 1. The air supply pipe 2 is equipped with a force transmission component.

[0025] The power transmission component includes a rotating gear 42 fixedly mounted on a rotating shaft 41, a rotating rod 410 passing through and rotatably mounted on the air supply pipe 2, a rotating gear 411 fixedly mounted on the rotating rod 410 that meshes with the rotating gear 42, and a drive rod 412 that cooperates with the pressing plate 413 slidably mounted inside the rotating rod 410.

[0026] When the servo motor 52 operates, driving the piston 510 to intermittently draw in air for sampling, the gas entering the air supply pipe 2 first flows through the coarse screen 43 and the fine screen 44. At this time, the coarse screen 43 can intercept larger haze particles in the gas (such as high-concentration haze PM2.5 > 150 μg / m³), while the fine screen 44 can intercept smaller haze particles in the gas (such as low-concentration haze PM2.5 < 35 μg / m³). Since haze consists of air (gaseous) and particulate matter (solid / solid state), the gas entering the air supply pipe 2 first flows through the coarse screen 43 and the fine screen 44. Since the air is a mixture of liquid and solid particles, the coarse sieve 43 and the fine sieve 44 work together to intercept the large and small particles of haze. This allows the haze particles dispersed in the air to be separated from the airflow and concentrated, forming a "countable and analyzable" solid sample. Therefore, the amount of haze particles intercepted by the coarse sieve 43 and the fine sieve 44 can provide a core basis for determining the level of haze concentration (such as the mass concentration of particles per unit volume mg / m³, the number concentration of particles / L), that is, to realize the automatic detection of haze concentration.

[0027] When the concentration of haze in the gas is low, the coarse sieve 43 and the fine sieve 44 work together to intercept less haze particles. That is, the sum of the clogging rates of haze particles on the sieve holes of the coarse sieve 43 and the fine sieve 44 is small, such as <20%. At this time, the resistance of the gas flowing downward at the upper end of the coarse sieve 43 is small, that is, the gas path resistance is small. At this time, the pressure difference between the upper and lower ends of the diaphragm 48 is small (according to the principle of fluid mechanics, the gas path resistance R and the pressure difference between the upper and lower ends of the diaphragm 48 ΔP=Pupper-Plower are strictly linearly positively correlated). This pressure difference is less than the elastic resistance of the multiple return springs 47. Therefore, when the haze concentration is low, the diaphragm 48 will remain stationary. That is, at this time, the piston 510 cannot be adjusted in terms of reciprocating stroke and reciprocating speed through the cooperation of the diaphragm 48 with the sensing mechanism, the adjustment component 6, and the drive component 5. This ensures that the device still maintains a low sampling flow rate during this stage, reducing the energy consumption required for continuous operation of the device to detect haze concentration, thus improving the energy-saving and environmental protection effect of the device.

[0028] When the concentration of haze particles in the gas is high, the coarse sieve 43 and the fine sieve 44 work together to drastically increase the amount of haze particles intercepted. The blockage rate of haze particles on the sieve holes of the coarse sieve 43 and the fine sieve 44 also increases dramatically, reaching over 60%. At this point, the downward flow resistance of the gas above the coarse sieve 43 increases significantly, meaning the gas path resistance is high. When the pressure difference between the upper and lower ends of the diaphragm 48 exceeds the elastic resistance of the multiple return springs 47, the diaphragm 48, under the force of the pressure difference, will drive the roller 49 and the pressing plate 413 downwards (e.g., ...). Figure 6 direction shown).

[0029] Meanwhile, to ensure that the gas entering the air supply pipe 2 can pass through the coarse screen 43, the fine screen 44, and the diaphragm 48 in sequence before continuing to flow downwards, multiple guide holes need to be opened on the diaphragm 48 (e.g., Figure 5 As shown in the figure, since the force logic of the diaphragm 48 is that the driving force = the pressure difference between the upper and lower ends of the diaphragm 48 (ΔP) × the effective force-bearing area of ​​the diaphragm 48, the sum of the areas of the flow guide holes on the diaphragm 48 must be less than 50% of its total area to ensure that the diaphragm 48 has a sufficiently large force-bearing area to sense the pressure difference between the upper and lower ends. That is, to ensure that when the haze concentration increases and a large pressure difference is generated at the upper and lower ends of the diaphragm 48, the pressure difference can drive the diaphragm 48 to move downward.

[0030] Reference Figures 6-13 The adjustment component 6 includes a limiting plate 61 fixedly installed on the inner wall of the device body 1. A round rod 62 is slidably installed through the limiting plate 61. A push-pull component is installed on the round rod 62. A cylinder 610 is rotatably installed on the limiting plate 61. The lower end of the drive rod 412 is slidably installed inside the cylinder 610. Two baffles 69 are fixedly installed on both the drive rod 412 and the round rod 62. A positioning rod 67 is rotatably installed on the inner wall of the device body 1. An adjustment plate 68 is fixedly installed on the positioning rod 67. A transmission component is installed between the cylinder 610 and the piston 510.

[0031] The push-pull component includes a threaded rod 64 rotatably mounted on the inner wall of the device body 1. Two drive frames 65 are threadedly mounted on the threaded rod 64. A parallel shaft gear 66 is fixedly mounted on the threaded rod 64. A rack frame 63 that meshes with the parallel shaft gear 66 is fixedly mounted on the round rod 62.

[0032] Combination Figure 6 It can be seen that two discs are installed on the drive rod 412 to cooperate with the pressing plate 413. When the smog concentration is high, the pressure at the upper and lower ends of the diaphragm 48 drives the roller 49 and the pressing plate 413 to move downward (e.g. Figure 6 (as shown in the direction), at this time, the driving force applied to the lower end of the drive rod 412 by the right end of the pressing plate 413 can drive the drive rod 412 to move downward.

[0033] When the drive rod 412 is subjected to force, it causes the two baffles 69 on it to move downward (such as...) Figure 12 (as shown in the direction) At this time, the baffle 69 located at the upper end of the drive rod 412 applies a downward driving force to the left end of the adjusting plate 68, which can drive the adjusting plate 68 to rotate counterclockwise around the positioning rod 67 as the axis. During this process, the right end of the adjusting plate 68 applies an upward driving force to the baffle 69 at the upper end of the round rod 62, which can drive the round rod 62 to move upward.

[0034] When the round rod 62 is subjected to force, it causes the rack frame 63 to move upward (as shown in the image). Figure 11 (As shown in the direction), the driving force applied to the parallel shaft gear 66 by the toothed blocks on the rack 63 can drive the parallel shaft gear 66 and the threaded rod 64 to rotate. At this time, the rotation of the threaded rod 64 can drive the two drive frames 65 on it to move to the right (as shown in the direction). Figure 13(as shown in the direction), during this process, the driving force applied to the driving cylinder 54 by the right driving frame 65 can drive the driving cylinder 54 to move to the right, while the right-side driving frame 65 applies a compressive force to the telescopic end of the telescopic rod 55 to the right, which can compress the telescopic rod 55, that is, indirectly drive the eccentric conical cylinder 57 to move to the right.

[0035] As described above, when the drive cylinder 54 moves to the right under force, the radius of the drive wheel 56 gradually increases. At this time, the servo motor 52 cooperates with the rotating shaft 53, the drive cylinder 54, and the drive wheel 56 to drive the telescopic rod 55 and the eccentric conical cylinder 57 to rotate at a gradually increasing speed. The eccentric conical cylinder 57 cooperates with the gas collection component to drive the piston 510 to reciprocate. This effectively ensures that the device can adaptably increase the sampling flow rate when the haze concentration increases. Therefore, in the high-concentration haze stage, only when the sampling volume is sufficient can the filter membrane used to detect haze concentration inside the device capture a sufficient amount of particulate matter to ensure the accuracy of β-ray detection. This helps to ensure the accuracy of the device in monitoring haze of different concentrations.

[0036] At the same time, when the eccentric conical cylinder 57 is subjected to force and moves to the right (such as... Figure 13 (as shown in the direction), that is, moving upwards (e.g.) Figure 9 As the contact radius between the piston 510 and the push-pull rod 58 is gradually increased (in the direction shown), the reciprocating stroke of the piston 510 can be gradually increased through the cooperation of the eccentric conical cylinder 57 and the compression spring 59. This helps to further ensure the accuracy of the sampling flow rate when the device samples high-concentration haze (for example, according to the minimum effective sampling flow rate requirement of the national standard, the sampling flow rate for high-concentration haze needs to be maintained at 16.7L / min. At this time, by increasing the reciprocating stroke of the piston 510, the amount of gas collected by the piston 510 in one reciprocation can be directly increased, ensuring that the gas sampling flow rate of the device can meet the required detection standard at this stage).

[0037] Reference Figures 9-15The transmission components include an elastic diaphragm II fixedly installed on the gas collecting cylinder 51, a connecting rod 611 fixedly installed at the lower end of the piston 510, and the connecting rod 611 is sealed through and fixedly installed on the elastic diaphragm II (the purpose of setting the elastic diaphragm II is to ensure the sealing of the inside of the gas collecting cylinder 51, that is, the gas entering the gas collecting cylinder 51 can only be discharged through the one-way exhaust pipe 512, and through the elasticity of the elastic diaphragm II itself, it is easy for the connecting rod 611 to reciprocate and compress and stretch the elastic diaphragm II when the piston 510 is subjected to force and the connecting rod 611 moves back and forth). A rack 612 is fixedly installed on the connecting rod 611, and a spur gear 613 that meshes with the rack 612 is rotatably installed on the limiting plate 61. The spur gear 613 has a groove 614 that is evenly distributed in a ring on it. A plate is fixedly installed on the cylinder 610, and two spring blocks 615 are fixedly installed on the plate.

[0038] When piston 510 is subjected to force, it drives connecting rod 611 and rack 612 to move back and forth (e.g. Figure 14 (as shown in the direction), that is, when the rack 612 moves up and down reciprocally (as shown in the direction), Figure 15 (As shown in the direction), through the engagement of the upper toothed block of rack 612 with spur gear 613, spur gear 613 can be driven to reciprocate. Furthermore, when rack 612 moves downwards, driving spur gear 613 to rotate counterclockwise (as shown in the direction),... Figure 15 (As shown in the direction), the multiple slots 614 on the spur gear 613 will intermittently compress the adjacent spring blocks 615. That is, during this stage, the rotation of the spur gear 613 will not drive the plate, cylinder 610, drive rod 412, and rotating rod 410 to rotate through the cooperation of the multiple slots 614 and the two spring blocks 615.

[0039] When the rack 612 is subjected to force and moves upward to reset (as shown in the image), Figure 15 When the spur gear 613 is driven to rotate clockwise (as shown in the direction), the engaging force applied to the corresponding spring block 615 through the slot 614 can drive the plate, cylinder 610, drive rod 412 and rotating rod 410 to rotate together (because the drive rod 412 is always slidably installed between the cylinder 610 and the rotating rod 410, when the cylinder 610 is rotated under force, the drive rod 412 can drive the rotating rod 410 to rotate together).

[0040] When the cylinder 610 is subjected to force and drives the rotating rod 410 to rotate via the drive rod 412, the rotating shaft 41 can be driven to rotate along with multiple scrapers 45 through the cooperation of the rotating gear 411 and the rotating gear 42 (in combination). Figure 4It can be seen that two scrapers 45 are respectively provided on the upper surface of the coarse screen 43 and the fine screen 44. During the rotation of multiple scrapers 45, the haze particles filtered and intercepted on the coarse screen 43 and the fine screen 44 can be scraped out and collected. This can help improve the persistence of the device in automatically monitoring the haze concentration in the gas through the cooperation of the coarse screen 43, the fine screen 44 and the membrane 48.

[0041] Meanwhile, through the cooperation of rack 612 with spur gear 613, multiple slots 614, two spring blocks 615, and power transmission components, multiple scrapers 45 can only be driven intermittently to clean the surfaces of coarse screen 43 and fine screen 44 in one direction. Furthermore, only a few teeth on rack 612 are used to drive spur gear 613 to rotate, meaning that the spur gear 613 is only driven by a small arc when driving multiple scrapers 45 to rotate at a time. This driving method helps to reduce the scraping speed of smog particles filtered and intercepted on coarse screen 43 and fine screen 44 by multiple scrapers 45, and avoids the situation where the pressure difference between the upper and lower ends of membrane 48 cannot be formed or the formation time is too short when multiple scrapers 45 work together to scrape and gather the intercepted particles on coarse screen 43 and fine screen 44 too quickly.

[0042] By intermittently driving multiple scrapers 45 through piston 510 and transmission components, not only can "excessively accumulated stubborn particles" on coarse screen 43 and fine screen 44 be effectively removed, preventing complete blockage of the coarse and fine screens by intercepted particles, but also the accuracy of continuous detection of haze particle concentration can be improved by the cooperation of coarse screen 43, fine screen 44, and diaphragm 48. Furthermore, the accuracy of adaptive adjustment of the sampling flow rate of the device based on haze concentration detection results can be improved by the cooperation of diaphragm 48, adjustment component 6, and drive component 5. Simultaneously, the formation of pressure difference between the upper and lower ends of diaphragm 48 can be ensured, thus ensuring the sensitivity of diaphragm 48 in sensing haze concentration. This also ensures the sensitivity of adaptive adjustment of the sampling flow rate of the device based on haze concentration detection results through the cooperation of diaphragm 48, adjustment component 6, and drive component 5, thereby improving the detection effect of the device on different haze concentrations.

[0043] As the device continues to monitor the haze concentration, the haze concentration decreases, and the pressure difference across the diaphragm 48 decreases. When this pressure difference becomes less than the elastic force of the multiple return springs 47, the diaphragm 48 can be driven to move upward and reset under the self-elastic force of the multiple return springs 47 (e.g., Figure 6 (as shown in the direction), during this process, through the cooperation of the diaphragm 48 with the pressing plate 413, the drive rod 412, the adjustment component 6, and the drive component 5, the piston 510 can be driven to gradually decrease to the initial reciprocating speed and the initial reciprocating stroke, that is, to gradually reduce the sampling flow rate of the device, so as to ensure the energy-saving and environmentally friendly effect of the device when detecting low-concentration haze.

[0044] Meanwhile, the distance between the left end of the adjusting plate 68 and the positioning rod 67 is set as the power arm, and the distance between the right end of the adjusting plate 68 and the positioning rod 67 is set as the damping arm (e.g., Figure 12 (As shown in the direction) According to the lever balance formula, effort × effort arm = resistance × resistance arm, when the effort arm > resistance arm, the lever is a force-saving lever. That is, under the pressure difference between the upper and lower ends, the diaphragm 48 drives the drive rod 412 to move downward. The drive rod 412, through the cooperation of the two baffles 69 on it, drives the left end of the adjusting plate 68 to rotate downward or upward (as shown in the direction). Figure 12 During the process (as shown in the direction), the drive rod 412 only requires a small driving force to drive the round rod 62 and the components on the round rod 62 to move up and down through the adjustment plate 68. This further ensures that when the haze concentration changes, the device can adapt the sensitivity and accuracy of the sampling flow rate of the device operation by cooperating with the diaphragm 48, the adjustment component 6, and the drive component 5.

[0045] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0046] In this invention, when the device is needed to detect haze concentration, the servo motor 52 is started first. At this time, the servo motor 52, in cooperation with the drive cylinder 54, drive wheel 56 and eccentric conical cylinder 57, can drive the push-pull rod 58 and piston 510 to collect gas at a low reciprocating left and right movement speed and a low reciprocating stroke. This can help reduce the sampling power required by the device in the initial stage of operation and help improve the energy-saving and environmental protection effect of the device.

[0047] Simultaneously, as the piston 510 reciprocates under force, intermittently drawing external gas into the gas collecting cylinder 51, the coarse sieve 43 and the fine sieve 44 work together to intercept larger and smaller particles in the smog gas. Furthermore, the concentration of smog particles can be indirectly detected based on the total amount of particles intercepted by the coarse and fine sieves. Specifically, when the total amount of particles intercepted by the coarse and fine sieves is small, the pressure difference between the upper and lower ends of the diaphragm 48 is small, making it difficult to resist the elastic resistance of the multiple return springs 47, thus driving the diaphragm 48 downwards. At this point, the device maintains its initial low-frequency sampling state, which helps to further improve the energy-saving and environmentally friendly effect of continuous operation.

[0048] When the total amount of particles intercepted by the coarse screen 43 and the fine screen 44 continues to increase, the pressure difference between the upper and lower ends of the diaphragm 48 continues to increase and exceeds the elastic resistance of the multiple return springs 47, the diaphragm 48 will be driven to move downward under the action of the pressure difference between the upper and lower ends of the diaphragm 48. During the downward movement of the diaphragm 48, through the cooperation of the diaphragm 48 with the power transmission component, the adjustment component 6 and the drive component 5, the reciprocating speed and reciprocating stroke of the piston 510 can be adaptively increased, that is, the sampling flow rate of the device during this stage can be adaptively increased to ensure the detection effect of the device on the haze concentration during this stage.

[0049] In addition, when the piston 510 moves back and forth under force, through the cooperation of the piston 510 with the transmission and power transmission components, multiple scrapers 45 can be intermittently driven to rotate to scrape and clean the particles intercepted on the coarse screen 43 and the fine screen 44, thereby ensuring the accuracy and sensitivity of the device in continuously detecting haze concentration, as well as the accuracy and sensitivity of the device in adapting to the sampling flow rate adjustment based on the concentration detection results.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An energy-saving and environment-friendly haze detection device, comprising a device main body (1), a wind conveying pipe (2) is fixedly connected to the device main body (1), characterized in that, The upper end of the air inlet pipe (2) is sealingly and clampingly installed with a shielding plate (3), the lower end of the shielding plate (3) is provided with a detection assembly (4) for detecting the haze concentration, the device body (1) is provided with a driving assembly (5), and the device body (1) is provided with an adjusting assembly (6) for adaptively adjusting the sampling flow rate in cooperation with the driving assembly (5); The detection assembly (4) comprises a rotating shaft (41) rotatably installed at the lower end of the shielding plate (3), a coarse sieve (43) rotatably installed on the rotating shaft (41), a fine sieve (44) rotatably installed on the rotating shaft (41), and a plurality of scraper plates (45) fixedly installed on the rotating shaft (41), and an induction mechanism is jointly installed between the rotating shaft (41) and the air inlet pipe (2). The driving assembly (5) comprises a telescopic rod (55) rotatably installed on the inner wall of the device body (1), an eccentric conical cylinder (57) fixedly installed on the telescopic end of the telescopic rod (55), and a driving part jointly installed between the telescopic rod (55) and the device body (1), and the air inlet pipe (2) is installed with a gas collecting part.

2. The energy-saving and environment-friendly haze detection device according to claim 1, characterized in that, The induction mechanism comprises a fixed block fixedly and uniformly installed in the form of a ring on the inner wall of the air inlet pipe (2), a reset spring (47) fixedly installed on the fixed block, a diaphragm (48) fixedly and jointly installed between the reset springs (47), the diaphragm (48) being sealingly and slidingly installed on the inner wall of the air inlet pipe (2), a support plate (46) fixedly installed on the inner wall of the air inlet pipe (2), and a circular roller (49) fixedly installed at the lower end of the diaphragm (48) and slidingly installed on the support plate (46); An elastic film one is fixedly installed on the air inlet pipe (2), a pressing plate (413) is fixedly installed at the lower end of the circular roller (49) and fixedly installed on the elastic film one, and a force feeding part is installed on the air inlet pipe (2).

3. The energy-saving and environment-friendly haze detection device according to claim 2, characterized in that, The force feeding part comprises a rotating gear one (42) fixedly installed on the rotating shaft (41), a rotating shaft (410) penetratingly and rotatably installed on the air inlet pipe (2), a rotating gear two (411) fixedly installed on the rotating shaft (410) and engaged with the rotating gear one (42), and a driving rod (412) slidingly installed in the rotating shaft (410) and matched with the pressing plate (413).

4. The energy-saving and environment-friendly haze detection device according to claim 3, characterized in that, The driving part comprises a servo motor (52) fixedly installed on the inner wall of the device body (1), a rotating shaft (53) fixedly installed on the driving end of the servo motor (52), a driving cylinder (54) fixedly installed on the rotating shaft (53), and a driving wheel (56) fixedly installed on the fixed end of the telescopic rod (55) and matched with the driving cylinder (54).

5. The energy-saving and environment-friendly haze detection device according to claim 4, characterized in that, The air collecting component includes an air collecting cylinder (51) fixedly connected at the lower end of the air conveying pipe (2), a push-pull rod (58) sealingly penetrating and slidingly installed on the air conveying pipe (2) and matched with an eccentric conical cylinder (57), a compression spring (59) fixedly installed between the push-pull rod (58) and the air conveying pipe (2), a piston (510) fixedly installed on the push-pull rod (58) and sealingly slidingly installed in the air collecting cylinder (51), a one-way air inlet pipe (511) fixedly installed on the inner wall of the air conveying pipe (2), and a one-way air outlet pipe (512) fixedly connected at the lower end of the air collecting cylinder (51).

6. The energy-saving and environment-friendly haze detection device according to claim 5, characterized in that, The adjusting assembly (6) includes a limiting plate (61) fixedly installed on the inner wall of the device main body (1), a round rod (62) penetrating and slidingly installed on the limiting plate (61), a push-pull component installed on the round rod (62), and a cylinder (610) rotatably installed on the limiting plate (61) and in which the lower end of the drive rod (412) is slidingly installed; The drive rod (412) and the round rod (62) are each fixedly installed with two baffles (69), a positioning rod (67) is rotatably installed on the inner wall of the device main body (1) and is fixedly installed with an adjusting plate (68) thereon, and the cylinder (610) and the piston (510) are jointly installed with a transmission component therebetween.

7. The energy-saving and environment-friendly haze detection device according to claim 6, characterized in that, The push-pull component includes a threaded rod (64) rotatably installed on the inner wall of the device main body (1), two drive frames (65) threadedly installed on the threaded rod (64), a parallel shaft gear (66) fixedly installed on the threaded rod (64), and a rack frame (63) fixedly installed on the round rod (62) and engaged with the parallel shaft gear (66).

8. The energy-saving and environment-friendly haze detection device according to claim 7, characterized in that, The transmission component includes an elastic film two fixedly installed on the air collecting cylinder (51), a connecting rod (611) fixedly installed at the lower end of the piston (510) and sealingly penetrating and fixedly installed on the elastic film two, a rack (612) fixedly installed on the connecting rod (611), a spur gear (613) rotatably installed on the limiting plate (61) and engaged with the rack (612), a plurality of clamping grooves (614) annularly and uniformly arranged on the spur gear (613), a plate body fixedly installed on the cylinder (610), and two spring clamping blocks (615) fixedly installed on the plate body.

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