A cleaning component and its acid mist analyzer

Abstract

The invention discloses a cleaning component and an acid mist analyzer thereof, wherein the cleaning component comprises a cleaning brush and a detector, wherein a lens of the detector is installed in a cleaning chamber of a protective shell, and an annular groove is also provided in the cleaning chamber; the cleaning brush is installed in the annular groove, and a brush part and a guide block part are provided on the cleaning brush, wherein the guide block parts are arranged at two ends of the cleaning brush, and the guide block parts are respectively engaged with the corresponding annular grooves and slidably assembled; the brush part is composed of a plurality of bristles, and the cleaning brush is made of a material that can be adsorbed by a magnet; a penetrating blowing hole is provided on the inner wall of the annular groove, and the blowing hole is connected with a gas dividing cavity, which is fixed on the outer wall of the protective shell and is connected with one end of the gas nozzle; a first electromagnet and a second electromagnet are respectively installed at corresponding positions on the two end surfaces of the protective shell and the cleaning brush, wherein the first electromagnet is composed of a first coil wound on a first iron core; and the second electromagnet is composed of a second coil wound on a second iron core.

Description

Technical Field

[0001] The invention relates to acid mist analysis equipment, in particular to a cleaning component and an acid mist analyzer thereof. Background Art

[0002] With the increasingly stringent environmental regulations, acid mist emitted from some chimneys, ships and other exhaust ports must also be tested. Currently, there are few devices that can detect acid mist. The H-SDD100 acid mist analyzer sold by Shanghai Hohen Environmental Protection Technology Co., Ltd. is the main domestic one. It is mainly installed symmetrically on both sides of the exhaust port and detects acid mist by laser beam.

[0003] At present, the H-SDD100 acid mist analyzer mainly uses air blowing to clean the lenses of the two detection modules to prevent the lenses from being covered by impurities, which will affect the use. However, the method of cleaning by air blowing alone obviously cannot meet some special use environments, such as the presence of droplets and sticky dust in the exhaust gas. Moreover, the H-SDD100 acid mist analyzer has not yet been connected to the Internet, which means that it cannot be monitored online. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a cleaning component and an acid mist analyzer thereof, which can quickly clean the lens through the cleaning component and be networked through a wireless module to achieve online monitoring.

[0005] To achieve the above-mentioned purpose, the present invention provides a cleaning assembly, including a cleaning brush and a detector, wherein the lens of the detector is installed in a cleaning chamber of a protective shell, and an annular groove is also provided in the cleaning chamber; the cleaning brush is installed in the annular groove, and the cleaning brush is provided with a brush part and a guide block part, wherein the guide block parts are arranged at both ends of the cleaning brush, and the guide block parts are respectively engaged with the corresponding annular grooves and can be slidably assembled; the brush part is composed of a plurality of bristles, and the cleaning brush is made of a material that can be adsorbed by a magnet;

[0006] The inner wall of the annular groove is provided with a through blowing hole, the blowing hole is connected with the air dividing cavity, the air dividing cavity is fixed on the outer wall of the protective shell and is connected with one end of the air nozzle;

[0007] The first electromagnet and the second electromagnet are respectively installed at the corresponding positions of the two end surfaces of the protective shell and the cleaning brush. The first electromagnet is composed of a first coil wound on a first iron core; the second electromagnet is composed of a second coil wound on a second iron core.

[0008] Preferably, the detector is also provided with an optical fiber connector connected to the first optical fiber or the second optical fiber.

[0009] Preferably, one end of the air pipe is connected to the other end of the air nozzle, the other end of the air pipe is connected to the outlet end of the air filter element, the access end of the air filter element is connected to the exhaust port of the air pump, and the air inlet of the air pump is connected to the air source.

[0010] The invention also discloses an acid mist analyzer, which is applied with the cleaning component.

[0011] Preferably, it further comprises at least one pair of detection modules and a control box, each pair of detection modules is composed of two detection modules, and the detection modules are respectively installed on the exhaust gas exhaust pipe, and each pair of detection modules is installed directly on the exhaust gas exhaust pipe;

[0012] The detection module includes a detector, which is installed in a protective shell. The two detectors in a pair of detection modules are respectively a laser emitting end and a laser receiving end. The laser emitted by the laser emitting end passes through the exhaust gas and is then received by the laser receiving end.

[0013] The detector at the laser emitting end is connected to the laser emitting end of the laser emitter through a first optical fiber, and the laser emitted by the laser emitter is transmitted to the detector at the laser emitting end through the first optical fiber, and then emitted through the detector at the laser emitting end;

[0014] The laser passes through the inner tube of the exhaust gas exhaust pipe and is received by a detector at the laser receiving end. The detector at this end is connected to the laser access end of the laser receiver through a second optical fiber.

[0015] Preferably, the protective shell is also provided with a transition portion and a second flange, the second flange is used to be installed and fixed with the exhaust gas exhaust pipe or assembled and fixed with the first flange installed on the exhaust gas exhaust pipe, the first flange is fixed on the mounting pipe, and the mounting pipe is welded and fixed to the outer wall of the exhaust gas exhaust pipe at one end away from the second flange, the interior of the mounting pipe is a hollow mounting inner pipe, and the mounting inner pipe is connected to the inner pipe.

[0016] Preferably, the control box is built with a wireless module, a main control board, a laser transmitter, and a laser receiver, and the main control board is installed with a controller and a memory;

[0017] The memory is communicatively connected to a first signal terminal of the controller, and a second signal terminal of the controller is communicatively connected to a wireless module, and the wireless module is networked with an external device;

[0018] The control end of the laser transmitter is communicatively connected to the third signal end of the controller, and the signal output end of the laser receiver is communicatively connected to the fourth signal end of the controller.

[0019] Preferably, the control box further comprises a box body and a box door, the interior of the box body is an electrical cavity, and the electrical cavity is open at one end facing the box door, and the opening is closed by the box door;

[0020] The box door is hingedly assembled with the box body through a hinge at one end facing the electrical cavity, and a locking block is arranged on the other end, the locking block comprises two locking block fixing plates, one end of the two locking block fixing plates is connected and fixed by a locking block connecting plate, and a locking bevel is respectively fixed on the inner side of the other end, and a tightening bevel and a locking groove are arranged on the locking bevel, and the tightening bevel is arranged downwardly from top to bottom, from an end away from the locking block connecting plate to an end close to the locking block connecting plate, and the locking groove is engaged and assembled with a locking rod;

[0021] A locking block through groove is formed between the end faces of the two locking oblique blocks that are close to each other, and a locking strip sliding groove is formed between the end faces of the two locking oblique blocks provided with the locking groove, the end faces of the locking block connecting plates, and the inner sides of the two locking block fixing plates;

[0022] The locking rod is fixed on the locking bar, and the locking bar is engaged with the locking bar sliding groove and can be slidably assembled in the length direction;

[0023] A trigger plate is fixed to both ends of the lock bar, and a latching groove is provided on the lock bar, and the latching groove can be meshed with the gear for transmission;

[0024] The gear is fixed to one end of the output shaft, and the other end of the output shaft is installed in the door lock motor, and the door lock motor can drive the output shaft to rotate forward and reverse in the circumferential direction. The door lock motor is installed in the motor slot, and the motor slot is arranged on the power block. The power block is also provided with a gear slot and a lock bar slot, and a gear is installed in the gear slot. The lock bar slot and the lock bar can be slidably assembled; the power block is fixed on the inner wall of the electrical cavity;

[0025] The two trigger plates are respectively opposite to a stroke assembly in the length direction of the lock bar, and the stroke assembly includes a guide cylinder, a stroke switch, and a first stroke fixing plate. The interior of the guide cylinder is a hollow guide inner cylinder, and one end of the stroke switch is a limit end, which is installed in the guide inner cylinder and can slide in the axial direction of the guide cylinder;

[0026] The other end of the travel switch passes through the first travel fixing plate and faces the trigger plate close to it. A spring is installed in the guide cylinder. The spring is used to generate elastic force to hinder the switch from moving toward the guide cylinder. The first travel fixing plate is fixed on the inner wall of the electrical cavity.

[0027] Preferably, the guide tube of one stroke assembly is assembled and fixed to a fixed boss at one end away from the stroke switch, and the fixed boss is fixed to the inner wall of the electrical cavity; the guide tube of another stroke assembly is assembled and fixed to a guide support plate at one end away from the stroke switch, and the guide support plate is fixed to the inner wall of the electrical cavity.

[0028] Preferably, the door lock motor is controlled by a motor driver, the power input wire of the motor driver is connected from the output terminal of the power switch, and the power input terminal of the power switch is conductively connected to the external power supply;

[0029] The control end of the motor driver is communicatively connected to the sixth signal end of the controller, so that the controller can send control instructions to the motor driver; the seventh signal end and the eighth signal end of the controller are also communicatively connected to two travel switches respectively. When the travel switch is triggered, the travel switch is closed, so that the controller obtains signal input.

[0030] The beneficial effects of the present invention are:

[0031] The present invention has a simple structure and can realize rapid and complete cleaning of the lens by arranging the cleaning component, thereby ensuring the accuracy of the detection data.

[0032] The control box of the present invention realizes the opening and closing control of the box door by arranging the lock block lock slots on the box door and the box body, thereby ensuring that the equipment in the electrical cavity is not damaged or illegally modified, and the parameters are not illegally modified. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention.

[0034] Figure 2 It is a schematic diagram of the structure of the detection module of the present invention.

[0035] Figure 3 It is a schematic diagram of the structure of the detection module of the present invention.

[0036] Figure 4 It is a schematic diagram of the structure of the detection module of the present invention.

[0037] Figure 5 It is a schematic diagram of the structure of the detection module of the present invention.

[0038] Figure 6 It is a schematic diagram of the structure of the detection module of the present invention.

[0039] Figure 7 It is a schematic structural diagram of a cleaning brush of the present invention.

[0040] Figure 8 It is a schematic diagram of the control box structure of the present invention.

[0041] Fig. 9 It is a schematic diagram of the control box structure of the present invention.

[0042] Fig.10 It is a schematic diagram of the control box structure of the present invention.

[0043] Fig.11 yes Fig.10 Enlarged view of F1 in the middle.

[0044] Fig.12 It is a schematic diagram of the locking block structure of the present invention.

[0045] Fig.13 It is a schematic diagram of the locking block and locking strip structure of the present invention.

[0046] Fig.14 It is a schematic diagram of the structure of the power block of the present invention. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0048] The present embodiment is an improvement based on the H-SDD100 acid mist analyzer, and its detection head is the detection module in the present embodiment. The control box of the present embodiment is just the control box of the H-SDD100 acid mist analyzer with the structure and wireless module added.

[0049] See also Figure 1-Figure 7 The acid mist analyzer of this embodiment includes at least one pair of detection modules and a control box. Each pair of detection modules is composed of two detection modules, and the detection modules are respectively installed on the exhaust gas exhaust pipe 810. Each pair of detection modules is installed on the exhaust gas exhaust pipe 810 opposite to each other (symmetrically through the center plane of the exhaust gas exhaust pipe 810).

[0050] The detection module includes a detector 710, and the detector 710 is installed in a protective shell 720. The two detectors 710 in a pair of detection modules are respectively a laser emitting end and a laser receiving end, so that the laser emitted by the laser emitting end passes through the exhaust gas and is then received by the laser receiving end. Finally, the acid mist data can be obtained by analyzing the laser at the laser receiving end. This is already achieved by existing products, and the relevant principles will not be described in detail in this embodiment.

[0051] The detector 710 at the laser emitting end is connected to the laser emitting end of the laser transmitter 310 through the first optical fiber 831, so that the laser of the laser transmitter 310 can be transmitted to the detector 710 at the laser emitting end through the first optical fiber 831, and then emitted by the detector 710 at the laser emitting end to pass through the inner tube 811 of the exhaust pipe 810 and then received by the detector 710 at the laser receiving end. The detector 710 at this end is connected to the laser access end of the laser receiver 340 through the second optical fiber, so that the detector 710 at the laser receiving end can transmit the received laser to the laser receiver 340 for processing. This part of the technology is currently the existing design of the H-SDD100 acid mist analyzer.

[0052] The lens 712 of the detector 710 is installed in the cleaning chamber 723 of the protective shell 720. The cleaning chamber 723 is also provided with an annular groove 7231. A cleaning brush 750 is installed in the annular groove 7231. The cleaning brush 750 is provided with a brush part 752 and a guide block part 751. The guide block part 751 is provided at both ends of the cleaning brush 750, and the guide block part 751 is respectively engaged with the corresponding annular groove 7231 and can be slidably assembled;

[0053] The brush part 752 is composed of a plurality of bristles, similar to the brush currently used for washing clothes, and the cleaning brush 750 is made of a material that can be adsorbed by a magnet, such as an iron material.

[0054] The inner wall of the annular groove 7231 is provided with a penetrating blowing hole 724, and the blowing hole 724 is connected to the air dividing cavity 742. The air dividing cavity 742 is fixed on the outer wall of the protective shell 720 and is connected to one end of the air nozzle 741. When in use, the constant temperature and clean gas used to blow air to the lens is connected to the other end of the air nozzle 741 through the air pipe, thereby introducing the corresponding gas into the air dividing cavity 742, and then blowing the too concentrated gas to the surface of the lens through the blowing hole, thereby purging.

[0055] The first electromagnet 731 and the second electromagnet 732 are respectively installed at the corresponding ends of the protective shell 720 and the cleaning brush 750. The first electromagnet 731 is composed of a first coil 7311 wound on a first iron core 7312; the second electromagnet 732 is composed of a second coil 7321 wound on a second iron core 7322; when in use, the first coil and the second coil are energized to generate a magnetic field, which is used to drive the cleaning brush 750.

[0056] The magnetic fields generated by the first coil and the second coil are in opposite directions. If the cleaning brush 750 needs to move from the first electromagnet 731 to the second electromagnet 732, the first electromagnet generates a repulsive force on the cleaning brush 750, while the second electromagnet generates a suction force on the cleaning brush 750. This drives the guide block portion of the cleaning brush 750 to move back and forth in the annular groove 7231. When moving, the brush portion 752 brushes the surface of the lens 712, and combined with the purge of the airflow, the cleanliness of the lens surface can be greatly increased.

[0057] The protective shell 720 is also provided with a transition portion 721 and a second flange 722. The second flange 722 is used to be installed and fixed to the exhaust gas exhaust pipe 810 or assembled and fixed to the first flange 822 installed on the exhaust gas exhaust pipe 810. The first flange 822 is fixed on the mounting tube 820. The end of the mounting tube 820 away from the second flange 822 is welded and fixed to the outer wall of the exhaust gas exhaust pipe 810. The interior of the mounting tube 820 is a hollow mounting inner tube 821, and the mounting inner tube 821 is connected to the inner tube 811, so that the laser can enter the inner tube 811.

[0058] Preferably, the detector 710 is also provided with an optical fiber connector 711 connected to the first optical fiber or the second optical fiber. This design is to facilitate the installation of the first optical fiber or the second optical fiber.

[0059] See also Figure 8-Figure 14 The control box has a built-in wireless module 320, a main control board 330, a laser transmitter 310, and a laser receiver 340. The main control board 330 is installed with a controller and a memory. The controller can be a PLC, MCU, CPU, etc.; the memory is used to store data and can be a hard disk.

[0060] The memory is communicatively connected to a first signal terminal of the controller, and a second signal terminal of the controller is communicatively connected to a wireless module 320. The wireless module can transmit detected data to an external device by networking with the external device.

[0061] The control end of the laser transmitter 310 is communicatively connected to the third signal end of the controller, and the signal output end of the laser receiver 340 is communicatively connected to the fourth signal end of the controller.

[0062] When in use, the controller analyzes and compares the laser information emitted by the laser transmitter 310 and the laser information received by the laser receiver 340 through a built-in program, so that the controller can calculate the value of the acid mist and then store the value in the memory. At the same time, the controller can also send relevant data to an external device through a wireless module or the external device can access the data stored in the memory through the wireless module.

[0063] The control box also includes a box body 200 and a box door 100. The interior of the box body 200 is a hollow electrical cavity 201, and a wireless module 320, a main control board 330, a laser transmitter 310, and a laser receiver 340 are installed in the electrical cavity 201. The electrical cavity 201 is open at one end facing the box door 100, and this opening is closed by the box door 100; the controller is communicatively connected with the wireless module.

[0064] The door 100 is hingedly assembled with the box body 200 at one end facing the electrical cavity 201 through a hinge 230, and a locking block is arranged on the other end. The locking block includes two locking block fixing plates 110, one end of the two locking block fixing plates 110 is connected and fixed through a locking block connecting plate 120, and a locking bevel 130 is respectively fixed on the inner side of the other end. The locking bevel 130 is provided with a tightening bevel 131 and a locking groove 132. The tightening bevel 131 is arranged from top to bottom, from an end away from the locking block connecting plate 120 to an end close to the locking block connecting plate 120. The locking groove 132 is engaged with the locking rod 611, so as to lock the locking block, that is, to lock the door 100 on the box body 200.

[0065] A locking block through groove 111 is formed between the end surfaces of the two locking bevel blocks 130 that are close to each other, and a locking strip sliding groove 112 is formed between the end surfaces of the two locking bevel blocks 130 that are provided with the locking groove 132, the end surface of the locking block connecting plate 120, and the inner side surfaces of the two locking block fixing plates 110;

[0066] The locking rod 611 is fixed on the locking bar 610, and the locking bar 610 is engaged with the locking bar sliding groove 112 and can be slidably assembled in the length direction;

[0067] Trigger plates 620 are fixed to both ends of the lock bar 610 , respectively. The lock bar 610 is also provided with a tooth groove 612 , which can mesh with the gear 650 for transmission, thereby forming a gear rack transmission mechanism.

[0068] The gear 650 is fixed at one end of the output shaft 641, and the other end of the output shaft 641 is installed in the door lock motor 640, and the door lock motor 640 can drive the output shaft to rotate forward and reverse in the circumferential direction. The door lock motor 640 is installed in the motor slot 633, and the motor slot 633 is set on the power block 630. The power block 630 is also provided with a gear slot 632 and a lock bar slot 631. The gear 650 is installed in the gear slot 632, and the lock bar slot 631 and the lock bar 610 can be slidably assembled; the power block is fixed on the inner wall of the electrical cavity.

[0069] The two trigger plates 620 are respectively opposite to the travel assembly in the length direction of the lock bar. The travel assembly includes a guide cylinder 510, a travel switch 520, and a first travel fixing plate 530. The guide cylinder 510 has a hollow guide inner cylinder 511 inside. One end of the travel switch 520 is a limit end 521. The limit end 521 is installed in the guide inner cylinder 511 and can slide in the axial direction of the guide cylinder.

[0070] The other end of the travel switch 520 passes through the first travel fixing plate 530 and faces the trigger plate 620 close to it. A spring 550 is installed in the guide cylinder 510. The spring 550 is used to generate an elastic force that hinders the travel switch 520 from moving toward the guide cylinder. The first travel fixing plate 530 is fixed on the inner wall of the electrical cavity 201.

[0071] One end of the guide cylinder of one of the travel components away from the travel switch 520 is assembled and fixed to the fixed boss 560, and the fixed boss 560 is fixed on the inner wall of the electrical cavity 201;

[0072] The end of the guide cylinder of the other stroke assembly away from the stroke switch 520 is assembled and fixed to the guide support plate 540 , and the guide support plate 540 is fixed on the inner wall of the electrical cavity 201 .

[0073] The door lock motor 640 is controlled by a motor driver, and the power input wire of the motor driver is connected to the output terminal of the power switch 450. The power input terminal of the power switch 450 is conductively connected to an external power source, which can be AC ​​power or a battery.

[0074] The control end of the motor driver is communicatively connected to the fifth signal end of the controller, so that the controller can send a control instruction to the motor driver to control the operating state of the door lock motor 640.

[0075] The sixth signal terminal and the seventh signal terminal of the controller are also respectively connected to two travel switches for communication. When the travel switches are triggered, the travel switches are closed, so that the controller obtains signal input.

[0076] See also Figure 6 In this embodiment, the upper travel switch is called the first travel switch and the lower travel switch is called the second travel switch. When the door 100 is locked, the second travel switch is triggered, and the locking rod 611 is engaged with the locking groove 132, so that the door 100 cannot be opened.

[0077] When the door 100 needs to be opened, the controller sends a control instruction to the motor driver, so that the door lock motor drives the lock bar to move toward the first travel switch through the gear until the first travel switch is triggered, and then the door lock motor stops running. At this time, the lock rod is separated from the lock slot, so that the door can be opened.

[0078] When the door needs to be locked, the door lock motor drives the gear to reverse, thereby driving the lock bar to move toward the second travel switch. During this process, the lock rod first contacts the tensioning slope 131, thereby pulling the door 100 toward the box body 200 through the tensioning slope 131, which makes the door and the end face of the box body close together. Finally, the lock rod is engaged with the lock slot, and the second travel switch is triggered at this time, and the door lock motor stops running.

[0079] Preferably, the opening end of the electrical cavity 201 is further provided with a sealing groove 202, in which a sealing strip 220 is installed, and the box door 100 is pressed against the sealing strip 220 to achieve a seal between the box door and the box body, so as to prevent water or dust from entering the electrical cavity. During the locking process, the box door is pulled toward the box body by the action of the locking rod and the tightening inclined surface 131, thereby squeezing the sealing strip to obtain a better sealing effect.

[0080] When in use, the external device sends control instructions to the controller through the wireless module, thereby controlling the motor to open and close the door. This design has high security, which can prevent others from opening the electrical cavity by mistake, and also prevent others from modifying the internal equipment or adjusting its internal parameters after opening the electrical cavity to avoid monitoring and cause unnecessary losses.

[0081] The signal end of this embodiment only refers to the corresponding pins, and the first, second, third, etc. are only described as different pins. During specific implementation, the corresponding pins need to be selected according to the functions recorded in this embodiment and the corresponding pin definitions.

[0082] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0083] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A cleaning component, characterized in that: include, A cleaning brush and a detector, wherein the lens of the detector is installed in a cleaning chamber of a protective shell, and an annular groove is also provided in the cleaning chamber; the cleaning brush is installed in the annular groove, and the cleaning brush is provided with a brush part and a guide block part, wherein the guide block parts are arranged at both ends of the cleaning brush, and the guide block parts are respectively engaged with the corresponding annular grooves and can be slidably assembled; the brush part is composed of a plurality of bristles, and the cleaning brush is made of a material that can be adsorbed by a magnet; The inner wall of the annular groove is provided with a through blowing hole, the blowing hole is connected with the air dividing cavity, the air dividing cavity is fixed on the outer wall of the protective shell and is connected with one end of the air nozzle; The first electromagnet and the second electromagnet are respectively installed at the corresponding positions of the two end surfaces of the protective shell and the cleaning brush, wherein the first electromagnet is composed of a first coil wound on a first iron core; and the second electromagnet is composed of a second coil wound on a second iron core; The detector is also provided with an optical fiber connector connected to the first optical fiber or the second optical fiber; One end of the air pipe is connected to the other end of the air nozzle, the other end of the air pipe is connected to the outlet end of the air filter element, the access end of the air filter element is connected to the exhaust port of the air pump, and the air inlet of the air pump is connected to the air source.

2. An acid mist analyzer, characterized in that: The cleaning component according to claim 1 is used.

3. The acid mist analyzer according to claim 2, characterized in that: It also includes at least one pair of detection modules and a control box, each pair of detection modules is composed of two detection modules, and the detection modules are respectively installed on the exhaust gas exhaust pipe, and each pair of detection modules is installed directly on the exhaust gas exhaust pipe; The detection module includes a detector, which is installed in a protective shell. The two detectors in a pair of detection modules are respectively a laser emitting end and a laser receiving end. The laser emitted by the laser emitting end passes through the exhaust gas and is then received by the laser receiving end. The detector at the laser emitting end is connected to the laser emitting end of the laser emitter through a first optical fiber, and the laser emitted by the laser emitter is transmitted to the detector at the laser emitting end through the first optical fiber, and then emitted through the detector at the laser emitting end; The laser passes through the inner tube of the exhaust gas exhaust pipe and is received by a detector at the laser receiving end. The detector at this end is connected to the laser access end of the laser receiver through a second optical fiber.

4. The acid mist analyzer according to claim 3, characterized in that: The protective shell is also provided with a transition portion and a second flange, the second flange is used to be installed and fixed to the exhaust gas exhaust pipe or assembled and fixed to the first flange installed on the exhaust gas exhaust pipe, the first flange is fixed to the mounting pipe, and the mounting pipe is welded and fixed to the outer wall of the exhaust gas exhaust pipe at one end away from the second flange, the interior of the mounting pipe is a hollow mounting inner pipe, and the mounting inner pipe is connected to the inner pipe.

5. The acid mist analyzer according to claim 3, characterized in that: The control box is equipped with a wireless module, a main control board, a laser transmitter, and a laser receiver, and the main control board is equipped with a controller and a memory; The memory is communicatively connected to a first signal terminal of the controller, and a second signal terminal of the controller is communicatively connected to a wireless module, and the wireless module is networked with an external device; The control end of the laser transmitter is communicatively connected to the third signal end of the controller, and the signal output end of the laser receiver is communicatively connected to the fourth signal end of the controller.

6. The acid mist analyzer according to claim 3, characterized in that: The control box also includes a box body and a box door. The interior of the box body is an electrical cavity, and the electrical cavity is open at one end facing the box door, and the opening is closed by the box door. The box door is hingedly assembled with the box body through a hinge at one end facing the electrical cavity, and a locking block is arranged on the other end, the locking block comprises two locking block fixing plates, one end of the two locking block fixing plates is connected and fixed by a locking block connecting plate, and a locking bevel is respectively fixed on the inner side of the other end, and a tightening bevel and a locking groove are arranged on the locking bevel, and the tightening bevel is arranged downwardly from top to bottom, from an end away from the locking block connecting plate to an end close to the locking block connecting plate, and the locking groove is engaged and assembled with a locking rod; A locking block through groove is formed between the end faces of the two locking oblique blocks that are close to each other, and a locking strip sliding groove is formed between the end faces of the two locking oblique blocks provided with the locking groove, the end faces of the locking block connecting plates, and the inner sides of the two locking block fixing plates; The locking rod is fixed on the locking bar, and the locking bar is engaged with the locking bar sliding groove and can be slidably assembled in the length direction; A trigger plate is fixed to both ends of the lock bar, and a latching groove is provided on the lock bar, and the latching groove can be meshed with the gear for transmission; The gear is fixed to one end of the output shaft, and the other end of the output shaft is installed in the door lock motor, and the door lock motor can drive the output shaft to rotate forward and reverse in the circumferential direction. The door lock motor is installed in the motor slot, and the motor slot is arranged on the power block. The power block is also provided with a gear slot and a lock bar slot, and a gear is installed in the gear slot. The lock bar slot and the lock bar can be slidably assembled; the power block is fixed on the inner wall of the electrical cavity; The two trigger plates are respectively opposite to a stroke assembly in the length direction of the lock bar, and the stroke assembly includes a guide cylinder, a stroke switch, and a first stroke fixing plate. The interior of the guide cylinder is a hollow guide inner cylinder, and one end of the stroke switch is a limit end, which is installed in the guide inner cylinder and can slide in the axial direction of the guide cylinder; The other end of the travel switch passes through the first travel fixing plate and faces the trigger plate close to it. A spring is installed in the guide cylinder. The spring is used to generate elastic force to hinder the switch from moving toward the guide cylinder. The first travel fixing plate is fixed on the inner wall of the electrical cavity.

7. The acid mist analyzer as claimed in claim 6, characterized in that: one The guide cylinder of the stroke component is assembled and fixed to the fixed boss at one end away from the stroke switch, and the fixed boss is fixed to the inner wall of the electrical cavity; the guide cylinder of the other stroke component is assembled and fixed to the guide support plate at one end away from the stroke switch, and the guide support plate is fixed to the inner wall of the electrical cavity.

8. The acid mist analyzer according to claim 6, characterized in that: The door lock motor is controlled by a motor driver, the power input wire of the motor driver is connected to the output terminal of the power switch, and the power input terminal of the power switch is conductively connected to an external power source; The control end of the motor driver is communicatively connected to the sixth signal end of the controller, so that the controller can send control instructions to the motor driver; the seventh signal end and the eighth signal end of the controller are also communicatively connected to two travel switches respectively. When the travel switch is triggered, the travel switch is closed, so that the controller obtains signal input.

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