Smoke monitoring device with automatic cleaning function

Abstract

The utility model discloses a smoke dust monitoring device with an automatic cleaning function, which comprises a monitor host, the monitor host is connected with a shell, the monitor host is provided with a back flushing interface, the back flushing interface is connected with an air filter, the air filter comprises a filter cylinder, the filter cylinder is provided with honeycomb-shaped air inlet holes, and the air inlet holes are communicated with the air inlet holes. The outer surface of the filter cylinder is coated with a plurality of layers of filter screens, one end of the air filter is rotatably connected with the back flushing connector, the other end of the air filter is rotatably connected with the shell, the air filter is further connected with the driving motor, and the air filter can rotate with the central axis of the air filter as the center under the action of the driving motor. A cleaning system is arranged in the shell and comprises a cleaning brush, a spraying device and an air blowing device, the cleaning brush is arranged on one side of the air filter and connected with the shell through a telescopic device, and the spraying device and the air blowing device are arranged on the upper side and the lower side of the air filter respectively.

Description

Technical Field

[0001] The utility model relates to a smoke and dust monitoring device with an automatic cleaning function. Background Art

[0002] The laser smoke monitor is a commonly used smoke concentration detection device that primarily measures dust concentration through the interaction between a light beam emitted by a laser or LED light source and dust particles. Its working principle generally uses the light scattering method to measure smoke concentration. During measurement, one end of the housing is sealed, and the other end is connected to the area to be measured. The laser light source is then turned on, emitting a laser of a predetermined wavelength through the housing into the smoke to be measured. The laser light of the predetermined wavelength is scattered by the smoke and enters the housing. The light scattered by the smoke to be measured includes the laser light of the predetermined wavelength and interference light. A filter is used to filter out the interference light, remove sunlight, refracted light, etc., and allow the scattered light of the laser light of the predetermined wavelength to pass through. In this way, the light received by the receiving source circuit board is the laser light of the predetermined wavelength scattered by the smoke. Under certain conditions of the optical system and dust properties, the scattered light intensity is proportional to the dust concentration. The receiving source circuit board calculates the dust concentration based on the scattered laser light intensity.

[0003] Laser smoke monitors are generally equipped with a backflush unit, which is connected to an air compressor and can blow air into the chimney to prevent smoke from entering the monitor. This effectively isolates the monitor from contacting the smoke exhaust system, ensuring that no smoke or dust adheres to the glass or other sealed surfaces of the monitor.

[0004] The backflush unit generally includes an air filter. After the laser smoke monitor has been working for a long time, the air filter will be clogged with dust, affecting the air intake and causing the data of the laser smoke monitor to be inaccurate. At this time, the operator is generally required to remove the air filter for cleaning or replacement, but this step is very inconvenient and will affect the operation of the laser smoke monitor. Utility Model Content

[0005] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a smoke monitoring device with an automatic cleaning function.

[0006] A smoke monitoring device with an automatic cleaning function includes a monitor host, which is connected to a shell. The monitor host is provided with a back-blowing interface, which is connected to an air filter. The air filter includes a filter cylinder, which is provided with a honeycomb air inlet. The outer surface of the filter cylinder is covered with several layers of filter mesh. One end of the air filter is rotatably connected to the back-blowing interface, and the other end of the air filter is rotatably connected to the shell. The air filter is also connected to a drive motor. The air filter can rotate around its own central axis under the action of the drive motor. A cleaning system is provided in the shell. The cleaning system includes a cleaning brush, a spray device and a blowing device. The cleaning brush is provided on one side of the air filter, and the cleaning brush is connected to the shell through a telescopic device. The upper and lower sides of the air filter are respectively provided with a spray device and a blowing device.

[0007] As a further improvement, the rotatable connection structure between the air filter and the back-blowing interface includes an air intake pipe of the back-blowing interface, a bearing is provided on the air intake pipe, the bearing is connected to the air intake pipe through a clamp, a cylindrical connector is provided on the outside of the bearing, one side of the cylindrical connector has a bottom and the other side has no bottom, a small hole is provided on the side of the cylindrical connector with a bottom, the cylindrical connector is sleeved on the air intake pipe through the small hole and connected to the bearing, a sealing gasket is provided at the connecting surface of the cylindrical connector and the bearing, and the side of the cylindrical connector without a bottom is provided with an internal thread and is threadedly connected to the air filter.

[0008] As a further improvement, the rotatable connection structure between the air filter and the shell includes a connecting base, a card slot is provided on one side of the connecting base, a card block matching the card slot is provided on the air filter, the air filter is detachably connected to the connecting base, and a transmission shaft is provided on the other side of the connecting base, which passes through the bearing seat on the shell and is connected to the drive motor.

[0009] As a further improvement, the telescopic device is provided with a limiter for adjusting the travel range of the cleaning brush.

[0010] As a further improvement, the filter screen is made of stainless steel, and the pore size of the filter screen is 0.5 to 1.5 mm.

[0011] As a further improvement, the water spray holes of the spray device are distributed along the axial direction of the air filter, and an atomizer is provided on the water spray holes to adjust the size of water droplets.

[0012] As a further improvement, the blowing device is provided with a regulating valve for adjusting the size of the air flow.

[0013] Beneficial effects:

[0014] This utility model is cleverly designed, and its automatic cleaning function can effectively avoid monitoring errors caused by dust accumulation on the sensor, thereby improving monitoring accuracy; it reduces the frequency of manual cleaning and lowers maintenance costs; it is suitable for a variety of scenarios such as industry, cities, and homes, and has good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of a smoke and dust monitoring device with an automatic cleaning function;

[0016] Figure 2 It is a schematic diagram of the internal structure of a smoke and dust monitoring device with an automatic cleaning function;

[0017] Figure 3 This is a schematic diagram of the structure in which the air filter and the backflush interface are rotatably connected;

[0018] Figure 4 2. It is a schematic diagram of the rotatable connection structure between the air filter and the housing;

[0019] 1. Housing 2. Monitor main unit 3. Backflush port 31. Inlet pipe 32. Bearing 33. Clamp 34. Cylindrical connector 35. Sealing gasket 4. Air filter 5. Cleaning brush 6. Telescopic device 7. Spray device 8. Air blowing device 9. Connecting base 91. Slot 92. Block 93. Drive shaft DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0021] like Figures 1 to 4 As shown, a smoke monitoring device with automatic cleaning function includes a shell 1, a monitor host 2, a backflush interface 3, an air inlet pipe 31, a bearing 32, a clamp 33, a cylindrical connector 34, a sealing gasket 35, an air filter 4, a cleaning brush 5, a telescopic device 6, a spray device 7, an air blowing device 8, a connecting base 9, a slot 91, a block 92 and a transmission shaft 93.

[0022] A smoke monitoring device with an automatic cleaning function includes a monitor host 2, the monitor host 2 is connected to a housing 1, a back-blowing interface 3 is provided on the monitor host 2, the back-blowing interface 3 is connected to an air filter 4, the air filter 4 includes a filter cylinder, the filter cylinder is provided with a honeycomb-shaped air inlet hole, the outer surface of the filter cylinder is covered with several layers of filter screen, the filter screen is made of stainless steel, the mesh size of the filter screen is 0.5 to 1.5 mm, one end of the air filter 4 is rotatably connected to the back-blowing interface 3, and the air filter 4 and the back-blowing interface 3 are rotatable. The ground connection structure includes an air intake pipe 31 of the backflush interface 3, a bearing 32 is provided on the air intake pipe 31, and the bearing 32 is connected to the air intake pipe 31 through a clamp 33. A cylindrical connector 34 is provided on the outside of the bearing 32. The cylindrical connector 34 has a bottom on one side and no bottom on the other side. The side of the cylindrical connector 34 with a bottom is provided with a small hole. The cylindrical connector 34 is sleeved on the air intake pipe 31 through the small hole and connected to the bearing 32. A sealing gasket 35 is provided at the connection surface between the cylindrical connector 34 and the bearing 32. The side of the cylindrical connector 34 without a bottom is provided with an internal thread and is threadedly connected to the air filter 4. The air The other end of the filter 4 is rotatably connected to the housing 1. The rotatable connection structure of the air filter 4 and the housing 1 includes a connecting base 9, a card slot 91 is provided on one side of the connecting base 9, and a card block 92 matching the card slot 91 is provided on the air filter 4. The air filter 4 is detachably connected to the connecting base 9. A transmission shaft 93 is provided on the other side of the connecting base 9. The transmission shaft 93 passes through the bearing 32 seat on the housing 1 and is connected to the drive motor. The air filter 4 is also connected to the drive motor. The air filter 4 can rotate around its own central axis under the action of the drive motor. The housing A cleaning system is provided in the body 1, which includes a cleaning brush 5, a spray device 7 and an air blowing device 8. The cleaning brush 5 is provided on one side of the air filter 4, and the cleaning brush 5 is connected to the housing 1 through a telescopic device 6. The telescopic device 6 is provided with a limiter for adjusting the stroke range of the cleaning brush 5. A spray device 7 and an air blowing device 8 are provided on the upper and lower sides of the air filter 4 respectively. The water spray holes of the spray device 7 are distributed along the axial direction of the air filter 4, and an atomizer is provided on the water spray hole for adjusting the size of water droplets. The air blowing device 8 is provided with a regulating valve for adjusting the size of the airflow.

[0023] The automatic cleaning function of this device can effectively avoid monitoring errors caused by dust accumulation on the sensor, thereby improving monitoring accuracy; reducing the frequency of manual cleaning and lowering maintenance costs; it is suitable for various scenarios such as industry, cities, and homes, and has good adaptability.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A smoke monitoring device with automatic cleaning function, characterized in that: The utility model comprises a monitoring instrument host, which is connected to the shell; a back-blowing interface is provided on the monitoring instrument host, and the back-blowing interface is connected to the air filter; the air filter comprises a filter cylinder, a honeycomb-shaped air inlet is provided on the filter cylinder, and the outer surface of the filter cylinder is covered with several layers of filter mesh; one end of the air filter is rotatably connected to the back-blowing interface, and the other end of the air filter is rotatably connected to the shell; the air filter is also connected to the driving motor; the air filter can rotate around its own central axis under the action of the driving motor; a cleaning system is provided in the shell, and the cleaning system comprises a cleaning brush, a spray device and a blowing device; the cleaning brush is provided on one side of the air filter, and the cleaning brush is connected to the shell through a telescopic device; a spray device and a blowing device are respectively provided on the upper and lower sides of the air filter.

2. The smoke monitoring device with automatic cleaning function according to claim 1, characterized in that: The air filter and the back-blowing interface rotatably connected structure includes an air intake pipe of the back-blowing interface, a bearing is provided on the air intake pipe, the bearing is connected to the air intake pipe through a clamp, a cylindrical connecting piece is provided on the outside of the bearing, one side of the cylindrical connecting piece has a bottom and the other side has no bottom, the side of the cylindrical connecting piece with the bottom is provided with a small hole, the cylindrical connecting piece is sleeved on the air intake pipe through the small hole and connected to the bearing, a sealing gasket is provided at the connecting surface of the cylindrical connecting piece and the bearing, the side of the cylindrical connecting piece without a bottom is provided with an internal thread and is threadedly connected to the air filter.

3. The smoke monitoring device with automatic cleaning function according to claim 1, characterized in that: The rotatable connection structure between the air filter and the shell includes a connecting base, a card slot is provided on one side of the connecting base, a card block matching the card slot is provided on the air filter, the air filter is detachably connected to the connecting base, and a transmission shaft is provided on the other side of the connecting base, which passes through the bearing seat on the shell and is connected to the drive motor.

4. The smoke monitoring device with automatic cleaning function according to claim 1, characterized in that: The telescopic device is provided with a limiter for adjusting the travel range of the cleaning brush.

5. The smoke monitoring device with automatic cleaning function according to claim 1, characterized in that: The filter screen is made of stainless steel, and the aperture of the filter screen is 0.5-1.5 mm.

6. The smoke monitoring device with automatic cleaning function according to claim 1, characterized in that: The water spray holes of the spray device are distributed along the axial direction of the air filter, and an atomizer is provided on the water spray holes to adjust the size of water droplets.

7. The smoke monitoring device with automatic cleaning function according to claim 1, characterized in that: The air blowing device is provided with a regulating valve for adjusting the size of the air flow.

Images