A device for detecting the concentration of exhaust gas particles

Abstract

The present invention discloses an exhaust gas particulate matter concentration emission detection device, which relates to the technical field of detection devices, including a detection mechanism, wherein the processing mechanism includes a connecting block, a cover plate is installed on the top of the connecting block, and an auxiliary optical sensor is installed on the outer surface of the connecting block, a first electric regulating valve is installed on the positive surface of the inner wall of one of the rectangular grooves, a second electric regulating valve is installed on the lower side of the connecting block, a third connecting pipe is fixedly penetrated through one side of the connecting block, and a rubber ring is bonded and connected to the inside of the second cylindrical hole. By setting a processing mechanism, the present invention can know whether the discharged exhaust gas contains oily substances, and can remove the oily substances mixed in the exhaust gas, thereby ensuring the detection effect of the exhaust gas particulate matter concentration emission detection device, which not only improves the use effect of the exhaust gas particulate matter concentration emission detection device, but also improves the use efficiency of the exhaust gas particulate matter concentration emission detection device.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to an exhaust gas particulate matter concentration emission detection device. Background Art

[0002] Exhaust gas particulate matter refers to substances that exist in the form of solid or liquid tiny particles in exhaust gas, and the exhaust gas particulate matter concentration emission refers to the mass of particulate matter contained in a unit volume of exhaust gas. In the industrial production process, in order to ensure that the mass of particulate matter contained in a unit volume of exhaust gas discharged into the environment meets the emission standards, the exhaust gas needs to be tested using an exhaust gas particulate matter concentration emission device before it is discharged.

[0003] In the existing technology, the existing exhaust gas particulate matter concentration emission detection device can measure the mass of particulate matter contained in a unit volume of exhaust gas during actual use, so that the exhaust gas discharged into the environment meets the emission standards, but it does not have the function of detecting whether the exhaust gas contains oily substances and removing the oily substances in the exhaust gas. When the exhaust gas is transported to the inside of the detection device, the detection device that does not have the exhaust gas detection function will not be able to know whether the exhaust gas contains oily substances, and it is also unable to process the oily substances contained in the exhaust gas, thereby causing the oily substances contained in the exhaust gas to enter the inside of the detection device, that is, affecting the normal propagation of the laser beam of the light scattering laser dust concentration sensor and the accurate collection and detection of scattered light. At the same time, the oily substances may also clog the sampling probe and sampling tube and other components of the light scattering laser dust concentration sensor, hindering the normal sampling of the exhaust gas, thereby affecting the detection of the exhaust gas, which not only reduces the use effect of the exhaust gas particulate matter concentration emission detection device, but also reduces the use efficiency of the exhaust gas particulate matter concentration emission detection device.

[0004] The present invention proposes an exhaust gas particulate matter concentration emission detection device to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide an exhaust gas particulate matter concentration emission detection device to solve the problem that the existing exhaust gas particulate matter concentration emission detection device does not have the function of detecting whether the exhaust gas contains oily substances and removing oily substances in the exhaust gas, thereby improving the detection effect of the exhaust gas particulate matter concentration emission detection device on the exhaust gas, which not only improves the use effect of the exhaust gas particulate matter concentration emission detection device, but also improves the use efficiency of the exhaust gas particulate matter concentration emission detection device.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an exhaust gas particulate matter concentration emission detection device, comprising a detection mechanism, wherein a processing mechanism is provided on the detection mechanism;

[0007] The processing mechanism includes a connecting block, a cover plate is installed on the top of the connecting block, a first connecting pipe is fixedly passed through one side of the connecting block, two rectangular grooves are provided on the top of the connecting block, and a limiting groove is provided on the front surface of the inner wall of each rectangular groove and the rear surface of the inner wall of each rectangular groove. The four limiting grooves are divided into two groups, and an adsorption block is arranged between the insides of each group of limiting grooves. An auxiliary optical sensor is installed on the outer surface of the connecting block, a first cylindrical hole is provided on the bottom of the inner wall of one of the rectangular grooves and the front surface of the inner wall of one of the rectangular grooves, a first electric regulating valve is installed on the front surface of the inner wall of one of the rectangular grooves, a second electric regulating valve is installed on the lower side of the connecting block, and a second connecting pipe is installed on the output end of the second electric regulating valve, a second cylindrical hole is provided on the top of the cover plate near the edge, a third connecting pipe is fixedly passed through one side of the connecting block, and a rubber ring is bonded to the inside of the second cylindrical hole.

[0008] Preferably, the interior of the first connecting tube is connected to the interior of one of the rectangular grooves, the bottom of each adsorption block is respectively in contact with the bottom of the inner wall of each rectangular groove, the top of each adsorption block is in contact with the bottom of the cover plate, and the detection end of the auxiliary optical sensor extends to the interior of one of the rectangular grooves.

[0009] Preferably, one of the first cylindrical holes is connected to the interior of another rectangular groove, the interior of the first electric regulating valve is connected to the interior of one of the first cylindrical holes, the second electric regulating valve is connected to the interior of one of the first cylindrical holes, the interior of the second cylindrical hole is connected to the interior of one of the rectangular grooves, and the interior of the third connecting tube is connected to the interior of another rectangular groove.

[0010] Preferably, the detection mechanism includes a box body, the connecting block is installed at the bottom of the inner wall of the box body, a box cover is installed on the top of the box body, the top of the cover plate and the bottom of the box cover are not in contact, and two rectangular holes and a limit hole are opened on the front surface of the inner wall of the box body.

[0011] Preferably, a controller, a display screen and an alarm are installed on the front surface of the inner wall of the box, the control end of the controller is movably sleeved inside one of the rectangular holes, the display end of the display screen is movably sleeved inside the other rectangular hole, and the alarm end of the alarm is movably sleeved inside the limit hole.

[0012] Preferably, a three-way pipe is movably passed through one side of the inner wall of the box body, a main optical sensor is installed at the detection end port of the three-way pipe, the detection end of the main optical sensor extends to the inside of the input end of the three-way pipe, and electric valves are installed at both output ends of the three-way pipe.

[0013] Preferably, the output end of one of the electric valves is installed with the input end of the first connecting pipe, a connecting vessel is fixed to one side of the inner wall of the box, a placing table is fixed to the bottom of the inner wall of the box, a concentration sensor is installed on the top of the placing table, and a fan is installed on the upper side of the placing table. The fan, concentration sensor, two electric valves, main optical sensor, alarm and display screen are all electrically connected to the controller, and the auxiliary optical sensor, first electric regulating valve and second electric regulating valve are all electrically connected to the controller.

[0014] Preferably, both the input end and the output end of the fan are equipped with guide tubes, wherein the input end of one of the guide tubes is installed with the output end of the concentration sensor, the input end of the concentration sensor is installed with the output end of the communicating vessel, and the output end of the other guide tube is installed with an L-shaped tube.

[0015] Preferably, a concave block is fixedly sleeved inside the square hole on the other side of the inner wall of the box body, a filter screen is installed at the opening of the concave block, the filter screen is movably sleeved inside the square hole on the other side of the inner wall of the box body, and two input ends of the communicating vessel are respectively installed with a first one-way valve and a second one-way valve.

[0016] Preferably, the output end of the other electric valve is installed with the other input end of the communicating vessel, the input end of the first one-way valve is installed with the output end of the second communicating tube, the input end of the second one-way valve is installed with the output end of the third communicating tube, and a threading hole is opened on the other side of the inner wall of the box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can determine whether the discharged exhaust gas contains oily substances by setting a processing mechanism, and can remove the oily substances mixed in the exhaust gas, thereby ensuring the detection effect of the exhaust gas particulate matter concentration emission detection device, which not only improves the use effect of the exhaust gas particulate matter concentration emission detection device, but also improves the use efficiency of the exhaust gas particulate matter concentration emission detection device. When the oily substance concentration data received by the controller is higher than the oily substance concentration threshold value set by the controller in advance, at this time, the controller, one of the electric valves, the first connecting pipe, one of the rectangular grooves and the corresponding adsorption block are used to cooperate to realize the exhaust gas output from the three-way pipe. Transport to the interior of one of the rectangular grooves and perform the oily substance removal operation.

[0019] 2. In the present invention, when the oily substance concentration data received by the controller is lower than the oily substance concentration threshold value set in advance by the controller, the cooperation of the controller, the second electric regulating valve, the corresponding first cylindrical hole, the second connecting pipe and the first one-way valve can be used to transport the exhaust gas and exhaust gas particles from which the oily substance has been removed to the interior of the communicating vessel for the next step of exhaust gas particle concentration detection.

[0020] 3. In the present invention, when the oily substance concentration data received by the controller is higher than the oily substance concentration threshold value set in advance by the controller, the controller, the first electric regulating valve, the corresponding first cylindrical hole, another rectangular groove and the corresponding adsorption block can be used to remove the oily substance in the exhaust gas transported from one of the rectangular grooves. Subsequently, the third connecting pipe and the second one-way valve can be used to transport the exhaust gas and exhaust gas particles without the oily substance to the inside of the communicating vessel for the next step of exhaust gas particle concentration detection.

[0021] 4. The present invention can detect the concentration of exhaust gas particles in the exhaust gas by setting a detection mechanism, so as to ensure that the mass of the particles contained in the unit volume of exhaust gas discharged into the environment meets the emission standards. When it is necessary to detect the concentration of particles contained in the discharged exhaust gas, the pipe for conveying the exhaust gas is first allowed to convey the exhaust gas to the input end of the three-way pipe, and then the main optical sensor is used to detect the concentration of oily substances in the exhaust gas entering the input end of the three-way pipe. When the oily substance concentration data received by the controller is lower than the oily substance concentration threshold value set by the controller in advance, the controller and another electric valve are used to cooperate to discharge the exhaust gas without oily substances discharged from the three-way pipe into the interior of the communicating vessel, and then the concentration sensor is used to cooperate to detect the concentration of exhaust gas particles in the exhaust gas.

[0022] 5. In the present invention, when the particle concentration data received by the controller is higher than the particle concentration threshold value set in advance by the controller, the cooperation of the controller, the alarm and the display screen can be used to issue an alarm prompt to the detection personnel, and the concentration value can be displayed on the screen of the display screen for the detection personnel to watch. At the same time, the cooperation of the controller, the fan, the two guide pipes and the L-shaped pipe can be used to guide the detected exhaust gas to the inside of the concave block, and then the cooperation of the filter screen can be used to filter the exhaust gas particles and retain them in the inside of the concave block, and the exhaust gas can be discharged into the environment. When the particle concentration data received by the controller is lower than the particle concentration threshold value set in advance by the controller, the pipe for conveying the exhaust gas and the input end of the three-way pipe are disconnected, and normal exhaust gas discharge can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of an exhaust gas particulate matter concentration emission detection device according to the present invention;

[0024] Figure 2 It is a schematic diagram of a part of the structure of an exhaust gas particulate matter concentration emission detection device according to the present invention from a top view;

[0025] Figure 3 It is a cross-sectional perspective view of a connecting vessel of an exhaust gas particulate matter concentration emission detection device of the present invention;

[0026] Figure 4 It is a partial stereoscopic diagram of an exhaust gas particulate matter concentration emission detection device of the present invention;

[0027] Figure 5 Another partial perspective view of an exhaust gas particulate matter concentration emission detection device according to the present invention;

[0028] Figure 6 It is a partial three-dimensional diagram of an exhaust gas particulate matter concentration emission detection device according to the present invention, viewed from a bottom angle;

[0029] Figure 7 It is a partially cutaway stereoscopic diagram of an exhaust gas particulate matter concentration emission detection device of the present invention;

[0030] Figure 8 A bottom-up perspective view of an exhaust gas particulate matter concentration emission detection device according to the present invention;

[0031] Fig. 9 The present invention is a device for detecting the concentration of exhaust gas particles. Figure 6 Enlarged stereogram of point A in the middle.

[0032] In the figure: 1, detection mechanism; 101, box body; 102, box cover; 103, rectangular hole; 104, controller; 105, display screen; 106, limit hole; 107, alarm; 108, three-way pipe; 109, main optical sensor; 110, electric valve; 111, connecting vessel; 112, placing table; 113, concentration sensor; 114, fan; 115, guide pipe; 116, L-shaped pipe; 117, concave block; 118, filter screen; 119, The first one-way valve; 120, the second one-way valve; 2, the processing mechanism; 201, the connecting block; 202, the cover plate; 203, the first connecting pipe; 204, the rectangular groove; 205, the limit groove; 206, the adsorption block; 207, the auxiliary optical sensor; 208, the first cylindrical hole; 209, the first electric regulating valve; 210, the second electric regulating valve; 211, the second connecting pipe; 212, the second cylindrical hole; 213, the third connecting pipe; 214, the rubber ring; 3, the threading hole. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-Figure 9As shown, the present invention provides a technical solution: an exhaust gas particulate matter concentration emission detection device, comprising a detection mechanism 1, on which a processing mechanism 2 is arranged;

[0035] The processing mechanism 2 includes a connecting block 201, a cover plate 202 is installed on the top of the connecting block 201, a first connecting pipe 203 is fixedly passed through one side of the connecting block 201, two rectangular grooves 204 are provided on the top of the connecting block 201, and a limiting groove 205 is provided on the inner wall front surface of each rectangular groove 204 and the inner wall rear surface of each rectangular groove 204. The four limiting grooves 205 are divided into two groups, and an adsorption block 206 is provided between the inside of each group of limiting grooves 205. An auxiliary optical sensor 207 is installed on the outer surface of the connecting block 201, and a first cylindrical hole 208 is provided on the inner wall bottom of one of the rectangular grooves 204 and the inner wall front surface of one of the rectangular grooves 204, and a first The electric regulating valve 209 and the second electric regulating valve 210 are installed on the lower side of the connecting block 201, and the second connecting pipe 211 is installed on the output end of the second electric regulating valve 210. A second cylindrical hole 212 is opened on the top of the cover plate 202 near the edge. A third connecting pipe 213 is fixedly penetrated on one side of the connecting block 201. A rubber ring 214 is bonded and connected inside the second cylindrical hole 212, which is used for connecting the first electric regulating valve 209 and the controller 104 electrically together with a wire. The interior of the first connecting pipe 203 is connected to the interior of one of the rectangular grooves 204. The bottom of each adsorption block 206 is respectively in contact with the bottom of the inner wall of each rectangular groove 204, and the top of each adsorption block 206 is in contact with the bottom of the cover plate 202. The detection end of the auxiliary optical sensor 207 extends to the interior of one of the rectangular grooves 204, one of the first cylindrical holes 208 is connected to the interior of the other rectangular groove 204, the interior of the first electric regulating valve 209 is connected to the interior of one of the first cylindrical holes 208, the second electric regulating valve 210 is connected to the interior of one of the first cylindrical holes 208, the interior of the second cylindrical hole 212 is connected to the interior of one of the rectangular grooves 204, the interior of the third connecting pipe 213 is connected to the interior of the other rectangular groove 204, and the detection mechanism 1 includes a box body 101, a connecting block 201 is installed at the bottom of the inner wall of the box body 101, a box cover 102 is installed on the top of the box body 101, and the top of the cover plate 202 and the box cover 10 2, the output end of one of the electric valves 110 is installed with the input end of the first connecting pipe 203, the input end of the first one-way valve 119 is installed with the output end of the second connecting pipe 211, the input end of the second one-way valve 120 is installed with the output end of the third connecting pipe 213, the auxiliary optical sensor 207, the first electric regulating valve 209 and the second electric regulating valve 210 are all electrically connected to the controller 104, the controller 104, the display screen 105 and the alarm 107 are installed on the positive surface of the inner wall of the box body 101, a three-way pipe 108 is movably penetrated on one side of the inner wall of the box body 101, the main optical sensor 109 is installed on the detection end port of the three-way pipe 108, and a connecting vessel 111 is fixed on one side of the inner wall of the box body 101,The two input ends of the communicating vessel 111 are respectively provided with a first one-way valve 119 and a second one-way valve 120.

[0036] In this embodiment, when the oily substance concentration data received by the controller 104 is higher than the oily substance concentration threshold value set in advance by the controller 104, it means that the exhaust gas contains oily substances. At this time, the controller 104 will open one of the electric valves 110. At this time, the exhaust gas entering the three-way pipe 108 will enter the first connecting pipe 203 through the cooperation of the opened electric valve 110, and then enter the interior of one of the rectangular grooves 204, and then pass through the interior of the corresponding adsorption block 206. When the exhaust gas passes through the interior of the adsorption block 206, the oily substance in the exhaust gas will be adsorbed and removed, and the exhaust gas and the particulate matter mixed in the exhaust gas will pass through the interior of the adsorption block 206. When the exhaust gas reaches the detection area of ​​the auxiliary optical sensor 207, domain, at this time, the auxiliary optical sensor 207 will detect the exhaust gas transmitted, and directly transmit the detected oily substance concentration data to the controller 104 in the form of an electrical signal, and then the controller 104 will compare the received oily substance concentration data with the oily substance concentration threshold value set in advance by the controller 104. When the oily substance concentration data received by the controller 104 is lower than the oily substance concentration threshold value set in advance by the controller 104, it means that the exhaust gas does not contain oily substances. At this time, the controller 104 will open the second electric control valve 210, and then the exhaust gas in one of the rectangular slots 204 will enter the interior of the opened second electric control valve 210 through the cooperation of the corresponding first cylindrical hole 208, and then Then, the exhaust gas enters the interior of the second connecting pipe 211, and then is transported to the interior of the connecting vessel 111 through the cooperation of the first one-way valve 119, and then the exhaust gas particle size concentration detection operation is performed. When the oily substance concentration data received by the controller 104 is higher than the oily substance concentration threshold value set in advance by the controller 104, it means that the adsorption block 206 in one of the rectangular grooves 204 needs to be replaced, and it also means that the exhaust gas still contains oily substances. At this time, the controller 104 will open the first electric regulating valve 209, and then the exhaust gas in one of the rectangular grooves 204 will enter the interior of the opened first electric regulating valve 209 through the cooperation of the corresponding first cylindrical hole 208, and then enter the interior of the other rectangular groove 204. The exhaust gas passes through the interior of the adsorption block 206, and then passes through the interior of the corresponding adsorption block 206. When the exhaust gas passes through the interior of the adsorption block 206, the oily substances in the exhaust gas will be adsorbed and removed, and the exhaust gas and the particulate matter mixed in the exhaust gas will pass through the interior of the adsorption block 206. The treated exhaust gas will then enter the interior of the third connecting pipe 213, and then enter the interior of the communicating vessel 111 through the cooperation of the second one-way valve 120, and then perform the exhaust gas particle size concentration detection operation. After the exhaust gas particulate matter concentration emission detection operation is completed, the controller 104 is turned off at this time, and then the box cover 102 is removed first, and then the cover plate 202 is removed, and then the adsorption block 206 in one of the rectangular grooves 204 is removed, and then the adsorption block 206 in the other rectangular groove 204 is removed.Then, the adsorption block 206 removed from the other rectangular groove 204 is placed between a set of limiting grooves 205 in one of the rectangular grooves 204, and then a new adsorption block 206 is placed between a set of limiting grooves 205 in another rectangular groove 204. Finally, the cover plate 202 is installed back to the initial position first, and then the box cover 102 is installed back to the initial position.

[0037] Embodiment 2: According to Figure 1-Figure 9 As shown, the detection mechanism 1 includes a box body 101, a box cover 102 is installed on the top of the box body 101, two rectangular holes 103 and a limit hole 106 are opened on the front surface of the inner wall of the box body 101, a controller 104, a display screen 105 and an alarm 107 are installed on the front surface of the inner wall of the box body 101, a control end of the controller 104 is movably sleeved in one of the rectangular holes 103, a display end of the display screen 105 is movably sleeved in another rectangular hole 103, and an alarm end of the alarm 107 is movably sleeved in the limit hole 106. A three-way pipe 108 is movably passed through one side of the inner wall of the box body 101, and a main optical sensor 109 is installed at the detection end port of the three-way pipe 108. The detection end of the main optical sensor 109 extends to the inside of the input end of the three-way pipe 108. Electric valves 110 are installed at both output ends of the three-way pipe 108, and the output end of one of the electric valves 110 is installed with the input end of the first connecting pipe 203. A connecting vessel 111 is fixed to one side of the inner wall of the box body 101, and a placing table 112 is fixed to the bottom of the inner wall of the box body 101. The top of the placing table 112 is installed The concentration sensor 113 is provided, and a fan 114 is installed on the upper side of the placing table 112. The fan 114, the concentration sensor 113, the two electric valves 110, the main optical sensor 109, the alarm 107 and the display screen 105 are all electrically connected to the controller 104. The input end of the fan 114 and the output end of the fan 114 are both installed with a guide tube 115, and the input end of one of the guide tubes 115 is installed with the output end of the concentration sensor 113, and the input end of the concentration sensor 113 is installed with the output end of the connecting vessel 111, and the other guide tube 115 is installed with the output end of the connecting vessel 111. An L-shaped tube 116 is installed at the output end of the tube 115, a concave block 117 is fixedly sleeved inside the square hole on the other side of the inner wall of the box body 101, a filter screen 118 is installed at the opening of the concave block 117, and the filter screen 118 is movably sleeved inside the square hole on the other side of the inner wall of the box body 101, two input ends of the communicating vessel 111 are respectively installed with a first one-way valve 119 and a second one-way valve 120, the output end of another electric valve 110 is installed with the other input end of the communicating vessel 111, and a threading hole 3 is opened on the other side of the inner wall of the box body 101.

[0038] In this embodiment, when it is necessary to detect the concentration of particulate matter contained in the exhaust gas, the controller 104 is first used to open the main optical sensor 109 and the concentration sensor 113, and then the exhaust gas delivery pipe is allowed to deliver the exhaust gas to the input end of the three-way pipe 108. At this time, the opened main optical sensor 109 will detect the concentration of oily substances in the exhaust gas entering the input end of the three-way pipe 108, and directly transmit the detected oily substance concentration data to the controller 104, and then the controller 104 will directly compare the received oily substance concentration data with the oily substance concentration threshold value set in advance by the controller 104. When the oily substance concentration data received by the controller 104 is lower than the oily substance concentration threshold value set in advance by the controller 104, it means that the exhaust gas does not contain oily substances. At this time, the controller 104 will open another electric valve 110 and the fan 114, and then the exhaust gas entering the three-way pipe 108 will enter the opened electric valve 110, then enter the connecting vessel 111, and then enter the concentration sensor 113. When the exhaust gas enters the concentration sensor 113, the concentration sensor 113 will detect the concentration of exhaust gas particles in the exhaust gas and send the detected particles to the exhaust gas sensor 113. The particle concentration data is directly transmitted to the controller 104 in the form of an electrical signal, and then the controller 104 directly compares the received particle concentration data with the particle concentration threshold value pre-set by the controller 104. When the particle concentration data received by the controller 104 is higher than the particle concentration threshold value pre-set by the controller 104, it means that the particle concentration in the exhaust gas is high. At this time, the controller 104 will use the cooperation of the alarm 107 to sound an alarm. At the same time, the controller 104 will also transmit the detected particle concentration data to the display screen 105 and display it on the screen of the display screen 105. For inspection personnel to watch, the exhaust gas passing through the concentration sensor 113 will then enter the concave block 117 through the cooperation of the two guide pipes 115, the L-shaped pipe 116 and the fan 114, and then pass through the mesh of the filter plate 118 and be discharged into the environment, while the particulate matter contained in the exhaust gas will be filtered out and remain in the concave block 117. When the particulate matter concentration data received by the controller 104 is lower than the particulate matter concentration threshold set in advance by the controller 104, it means that the exhaust gas emissions meet the standards. At this time, the pipe conveying the exhaust gas and the input end of the three-way pipe 108 are disconnected to carry out normal exhaust gas emissions.

[0039] The rubber ring 214 is used to facilitate the wires to electrically connect the first electric regulating valve 209 and the controller 104 together.

[0040] The effect and working principle of the whole mechanism are as follows: when it is necessary to detect the concentration of particulate matter contained in the exhaust gas, the controller 104 is first connected to the external power supply by using the prepared power cord and the threading hole 3, and then the controller 104 is turned on, and three concentration thresholds (one for the main optical sensor 109, one for the auxiliary optical sensor 207 and one for the concentration sensor 113) and the basic usage procedures are set, and then the output end of the pipe for conveying exhaust gas is connected to the input end of the three-way pipe 108. When everything is ready, the main optical sensor 109, the auxiliary optical sensor 207 and the concentration sensor 113 are turned on by the controller 104, and then the pipe for conveying exhaust gas is directed to the three-way pipe 108. 08 is used to transport waste gas. At this time, the opened main optical sensor 109 will detect the concentration of oily substances in the waste gas entering the input end of the three-way pipe 108, and directly transmit the detected oily substance concentration data to the controller 104. Then, the controller 104 will directly compare the received oily substance concentration data with the oily substance concentration threshold value set in advance by the controller 104. When the oily substance concentration data received by the controller 104 is lower than the oily substance concentration threshold value set in advance by the controller 104, it means that the waste gas does not contain oily substances. At this time, the controller 104 will open another electric valve 110 and the fan 114. Then, the waste gas entering the inside of the three-way pipe 108 will enter the inside of the opened electric valve 110. Then it enters the interior of the communicating vessel 111, and then enters the interior of the concentration sensor 113. When the exhaust gas enters the interior of the concentration sensor 113, the concentration sensor 113 will detect the exhaust gas particulate matter concentration in the exhaust gas, and directly transmit the detected particulate matter concentration data to the controller 104 in the form of an electrical signal. Then the controller 104 will directly compare the received particulate matter concentration data with the particulate matter concentration threshold value set in advance by the controller 104. When the particulate matter concentration data received by the controller 104 is higher than the particulate matter concentration threshold value set in advance by the controller 104, it means that the concentration of particulate matter in the exhaust gas is high. At this time, the controller 104 will use the cooperation of the alarm 107 to sound an alarm, and the controller 107 will sound an alarm. 04 will also transmit the detected particle concentration data to the display screen 105, and display it on the screen of the display screen 105 for the inspector to watch. Then the exhaust gas passing through the inside of the concentration sensor 113 will enter the inside of the concave block 117 through the cooperation of the two guide pipes 115, the L-shaped pipe 116 and the fan 114, and then pass through the mesh of the filter plate 118 and be discharged into the environment. The particles contained in the exhaust gas will be filtered out and remain in the inside of the concave block 117. When the particle concentration data received by the controller 104 is lower than the particle concentration threshold value set in advance by the controller 104, it means that the exhaust gas emission meets the standard. At this time, the pipe conveying the exhaust gas and the input end of the three-way pipe 108 are disconnected to carry out normal exhaust gas emission.When the oily substance concentration data received by the controller 104 is higher than the oily substance concentration threshold value set in advance by the controller 104, it means that the exhaust gas contains oily substances. At this time, the controller 104 will open one of the electric valves 110. At this time, the exhaust gas entering the three-way pipe 108 will enter the first connecting pipe 203 through the cooperation of the opened electric valve 110, and then enter the interior of one of the rectangular grooves 204, and then pass through the corresponding adsorption block 206. When the exhaust gas passes through the adsorption block 206, the oily substances in the exhaust gas will be adsorbed and removed, and the exhaust gas and the particulate matter mixed in the exhaust gas will pass through the interior of the adsorption block 206. When the exhaust gas reaches the detection area of ​​the auxiliary optical sensor 207, this At this time, the auxiliary optical sensor 207 will detect the exhaust gas transmitted, and directly transmit the detected oily substance concentration data to the controller 104 in the form of an electrical signal. Then, the controller 104 will compare the received oily substance concentration data with the oily substance concentration threshold value set in advance by the controller 104. When the oily substance concentration data received by the controller 104 is lower than the oily substance concentration threshold value set in advance by the controller 104, it means that the exhaust gas does not contain oily substances. At this time, the controller 104 will open the second electric control valve 210, and then the exhaust gas in one of the rectangular slots 204 will enter the interior of the opened second electric control valve 210 through the cooperation of the corresponding first cylindrical hole 208, and then enter The oily substance concentration data received by the controller 104 is higher than the oily substance concentration threshold value set in advance by the controller 104, which indicates that the adsorption block 206 in one of the rectangular grooves 204 needs to be replaced, and it also indicates that the exhaust gas still contains oily substances. At this time, the controller 104 will open the first electric regulating valve 209, and then the exhaust gas in one of the rectangular grooves 204 will enter the opened first electric regulating valve 209 through the corresponding first cylindrical hole 208, and then enter the inside of the other rectangular groove 204. , and then pass through the interior of the corresponding adsorption block 206. When the exhaust gas passes through the interior of the adsorption block 206, the oily substances in the exhaust gas will be adsorbed and removed, and the exhaust gas and the particulate matter mixed in the exhaust gas will pass through the interior of the adsorption block 206. Then the treated exhaust gas will enter the interior of the third connecting pipe 213, and then enter the interior of the communicating vessel 111 through the cooperation of the second one-way valve 120, and continue to enter the remaining same steps mentioned above. After the exhaust gas particulate matter concentration emission detection operation is completed, the controller 104 is turned off at this time, and then the box cover 102 is removed first, and then the cover plate 202 is removed, and then the adsorption block 206 in one of the rectangular grooves 204 is removed, and then the adsorption block 206 in the other rectangular groove 204 is removed.Then, the adsorption block 206 removed from the other rectangular groove 204 is placed between a set of limiting grooves 205 in one of the rectangular grooves 204, and then a new adsorption block 206 is placed between a set of limiting grooves 205 in another rectangular groove 204. Finally, the cover plate 202 is installed back to the initial position first, and then the box cover 102 is installed back to the initial position.

[0041] Among them, the main optical sensor 109 and the auxiliary optical sensor 207 are both based on the infrared absorption principle to detect whether the exhaust gas contains oily substances. The detection principle is: oily substances have specific absorption spectrum characteristics in the infrared band. The optical sensor based on the infrared absorption principle uses this characteristic to emit infrared light in a specific wavelength range to illuminate the exhaust gas. When there are oily substances in the exhaust gas, the molecules of the oily substances will absorb infrared light of a specific wavelength, thereby causing the intensity of the light to change. The sensor detects the change in light intensity and combines it with the known infrared absorption spectrum database of oily substances and related algorithms to infer the concentration of oily substances in the exhaust gas, thereby determining whether the exhaust gas contains oily substances.

[0042] The concentration sensor 113 is a light scattering laser dust sensor. The detection principle is to emit laser, detect the scattered light of particles and convert it into an electrical signal, and then calculate the dust concentration according to the calibration algorithm, thereby measuring the concentration of particles in the exhaust gas.

[0043] Among them, the controller 104 (PLC controller), display screen 105, alarm 107, main optical sensor 109 (based on infrared absorption principle), electric valve 110, concentration sensor 113, fan 114, first one-way valve 119, second one-way valve 120, adsorption block 206 (honeycomb activated carbon block), auxiliary optical sensor 207, first electric regulating valve 209 and second electric regulating valve 210 are all existing technologies, and their models can be selected according to actual conditions, and no excessive explanation is given here.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust gas particulate matter concentration emission detection device, characterized in that: It comprises a detection mechanism (1), wherein a processing mechanism (2) is arranged on the detection mechanism (1); The processing mechanism (2) comprises a connecting block (201), a cover plate (202) is installed on the top of the connecting block (201), a first connecting pipe (203) is fixedly passed through one side of the connecting block (201), two rectangular grooves (204) are provided on the top of the connecting block (201), and a limiting groove (205) is provided on the front surface of the inner wall of each rectangular groove (204) and the rear surface of the inner wall of each rectangular groove (204), and the four limiting grooves (205) are divided into two groups, each group having a Adsorption blocks (206) are arranged between the interiors of the limiting grooves (205), an auxiliary optical sensor (207) is installed on the outer surface of the connecting block (201), a first cylindrical hole (208) is opened at the bottom of the inner wall of one of the rectangular grooves (204) and the inner wall front surface of one of the rectangular grooves (204), a first electric regulating valve (209) is installed on the inner wall front surface of one of the rectangular grooves (204), and a second electric regulating valve (209) is installed on the lower side of the connecting block (201). 10), a second connecting pipe (211) is installed at the output end of the second electric regulating valve (210), a second cylindrical hole (212) is opened at the top of the cover plate (202) near the edge, a third connecting pipe (213) is fixedly passed through one side of the connecting block (201), a rubber ring (214) is bonded and connected inside the second cylindrical hole (212), the inside of the first connecting pipe (203) is connected to the inside of one of the rectangular grooves (204), the detection end of the auxiliary optical sensor (207) extends to the inside of one of the rectangular grooves (204), one of the first cylindrical holes (208) is connected to the inside of another rectangular groove (204), the inside of the first electric regulating valve (209) is connected to the inside of one of the first cylindrical holes (208), the second electric regulating valve (210) is connected to the inside of one of the first cylindrical holes (208), and the inside of the third connecting pipe (213) is connected to the inside of another rectangular groove (204); The detection mechanism (1) comprises a box (101), a three-way pipe (108) movably penetrates one side of the inner wall of the box (101), a main optical sensor (109) is installed at the detection end port of the three-way pipe (108), and electric valves (110) are installed at both output ends of the three-way pipe (108), wherein one output end of the electric valve (110) is installed with the input end of the first connecting pipe (203), a connecting vessel (111) is fixed to one side of the inner wall of the box (101), and the output end of the other electric valve (110) is installed with the other input end of the connecting vessel (111), and a first one-way valve (119) and a second one-way valve (120) are installed at two input ends of the connecting vessel (111), respectively, the input end of the first one-way valve (119) is installed with the output end of the second connecting pipe (211), and the input end of the second one-way valve (120) is installed with the output end of the third connecting pipe (213); When the exhaust gas particulate matter concentration emission detection device is used, the exhaust gas entering the three-way pipe (108) will enter the first connecting pipe (203) through the cooperation of the opened electric valve (110), and then enter the interior of one of the rectangular grooves (204), and then pass through the interior of the corresponding adsorption block (206). When the exhaust gas reaches the detection area of ​​the auxiliary optical sensor (207), the auxiliary optical sensor (207) will detect the exhaust gas delivered. When the exhaust gas delivered does not contain oily substances, the second electric regulating valve (210) is opened, and then the exhaust gas in one of the rectangular grooves (204) will enter the interior of the opened second electric regulating valve (210) through the cooperation of the corresponding first cylindrical hole (208), and then enter The exhaust gas enters the interior of the second connecting pipe (211), and then is transported to the interior of the connecting vessel (111) through the cooperation of the first one-way valve (119). When the exhaust gas still contains oily substances, the first electric regulating valve (209) is opened, and then the exhaust gas in one of the rectangular grooves (204) enters the interior of the opened first electric regulating valve (209) through the cooperation of the corresponding first cylindrical hole (208), and then enters the interior of another rectangular groove (204), and then passes through the interior of the corresponding adsorption block (206). When the exhaust gas passes through the interior of the adsorption block (206), the treated exhaust gas enters the interior of the third connecting pipe (213), and then enters the interior of the connecting vessel (111) through the cooperation of the second one-way valve (120).

2. The exhaust gas particulate matter concentration emission detection device according to claim 1 is characterized in that: The bottom of each adsorption block (206) is in contact with the bottom of the inner wall of each rectangular groove (204), the top of each adsorption block (206) is in contact with the bottom of the cover plate (202), and the interior of the second cylindrical hole (212) is connected to the interior of one of the rectangular grooves (204).

3. The exhaust gas particulate matter concentration emission detection device according to claim 1 is characterized in that: The connection block (201) is mounted on the bottom of the inner wall of the box body (101); a box cover (102) is mounted on the top of the box body (101); the top of the cover plate (202) and the bottom of the box cover (102) are not in contact; and two rectangular holes (103) and a limit hole (106) are provided on the front surface of the inner wall of the box body (101).

4. The exhaust gas particulate matter concentration emission detection device according to claim 3 is characterized in that: A controller (104), a display screen (105) and an alarm (107) are mounted on the front surface of the inner wall of the box (101); a control end of the controller (104) is movably sleeved inside one of the rectangular holes (103); a display end of the display screen (105) is movably sleeved inside another rectangular hole (103); an alarm end of the alarm (107) is movably sleeved inside the limit hole (106); and a detection end of the main optical sensor (109) extends to the inside of the input end of the three-way pipe (108).

5. The exhaust gas particulate matter concentration emission detection device according to claim 4 is characterized in that: A placement table (112) is fixed to the bottom of the inner wall of the box body (101), a concentration sensor (113) is installed on the top of the placement table (112), and a fan (114) is installed on the upper side of the placement table (112). The fan (114), the concentration sensor (113), the two electric valves (110), the main optical sensor (109), the alarm (107) and the display screen (105) are all electrically connected to the controller (104), and the auxiliary optical sensor (207), the first electric regulating valve (209) and the second electric regulating valve (210) are all electrically connected to the controller (104).

6. The exhaust gas particulate matter concentration emission detection device according to claim 5, characterized in that: The input end of the fan (114) and the output end of the fan (114) are both installed with flow guide tubes (115), wherein the input end of one of the flow guide tubes (115) is installed with the output end of the concentration sensor (113), the input end of the concentration sensor (113) is installed with the output end of the connecting vessel (111), and the output end of the other flow guide tube (115) is installed with an L-shaped tube (116).

7. The exhaust gas particulate matter concentration emission detection device according to claim 1 is characterized in that: A concave block (117) is fixedly sleeved inside the square hole on the other side of the inner wall of the box body (101), a filter screen plate (118) is installed at the opening of the concave block (117), and the filter screen plate (118) is movably sleeved inside the square hole on the other side of the inner wall of the box body (101). A threading hole (3) is opened on the other side of the inner wall of the box body (101).

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