CN217237660U - Easy-to-maintain smoke concentration measuring instrument - Google Patents
Easy-to-maintain smoke concentration measuring instrument Download PDFInfo
- Publication number
- CN217237660U CN217237660U CN202220865437.1U CN202220865437U CN217237660U CN 217237660 U CN217237660 U CN 217237660U CN 202220865437 U CN202220865437 U CN 202220865437U CN 217237660 U CN217237660 U CN 217237660U
- Authority
- CN
- China
- Prior art keywords
- concentration measuring
- laser
- smoke concentration
- measuring chamber
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The application provides an easy-maintenance type smoke concentration measuring instrument, which comprises a cabinet, an extraction probe, a jet pump and a laser smoke concentration measuring chamber, wherein the laser smoke concentration measuring chamber and the jet pump are both arranged in the cabinet; the first end of a four-way piece in the back flushing assembly is communicated with a variable-frequency air supply device through an air outlet pipe, the second end of the four-way piece is communicated with an extraction probe through a first back flushing pipe, the third end of the four-way piece is communicated with a laser smoke concentration measuring chamber through a second back flushing pipe, and the fourth end of the four-way piece is connected with the other input end of the jet pump through an air guiding pipe. The back washing machine can respectively carry out back washing of different frequencies on parts with different pollution degrees, each part is not easy to block, the parts are not needed to be manually disassembled and replaced difficultly, and the effect of convenient maintenance is achieved.
Description
Technical Field
The application relates to the technical field of flue gas detection, in particular to an easy-maintenance type smoke concentration measuring instrument.
Background
Soot refers to airborne particulates formed during combustion, high temperature melting, chemical reactions, etc. of fuels. Typical smoke is black smoke from a chimney, i.e., small black carbon particles that burn incompletely. The particle size of the smoke dust is very small, the smoke dust can cause pollution to the environment and harm the health of production personnel, and the concentration of the smoke dust needs to be detected.
The smoke and dust is measured by light scattering method, that is, when the floating smoke and dust in darkroom is irradiated with light, the scattered light intensity of the smoke and dust is proportional to the mass concentration of the smoke and dust under the condition of certain physical property of the smoke and dust, and the relative mass concentration of the smoke and dust can be measured by converting the scattered light intensity into pulse count. The existing measuring instrument for measuring the smoke concentration by adopting a light scattering method contains precise parts, and once the smoke is blocked, the smoke needs to be manually disassembled and replaced with great effort, so that the problem of inconvenient maintenance exists.
SUMMERY OF THE UTILITY MODEL
The application provides an easy maintenance formula smoke and dust concentration measurement appearance for solve the inside accurate part that contains that adopts the light scattering method to measure the measuring apparatu of smoke and dust concentration now, in case the smoke and dust blocks up to need artifical dismantlement hard and change, there is the inconvenient problem of maintenance.
The application provides an easy-maintenance smoke concentration measuring instrument, which comprises a cabinet, an extraction probe, a jet pump and a laser smoke concentration measuring chamber for detecting smoke concentration, wherein the laser smoke concentration measuring chamber and the jet pump are both arranged in the cabinet;
the back flushing component comprises a variable-frequency air supply device, an air outlet pipe, a first back flushing pipe, a second back flushing pipe, a four-way piece and an air guiding pipe, wherein the first end of the four-way piece is communicated with the variable-frequency air supply device through the air outlet pipe, the second end of the four-way piece is communicated with the extraction probe through the first back flushing pipe, the third end of the four-way piece is communicated with the laser smoke concentration measuring chamber through the second back flushing pipe, and the fourth end of the four-way piece is connected with the other input end of the jet pump through the air guiding pipe.
In an embodiment of the application, a first electromagnetic valve is arranged between the laser smoke concentration measuring chamber and an extraction probe at the front end of the laser smoke concentration measuring chamber, a second electromagnetic valve is arranged on the first recoil pipe, a third electromagnetic valve is arranged on the second recoil pipe, and a fourth electromagnetic valve is arranged on the induced draft pipe.
In an embodiment of the application, the variable frequency air supply device comprises a frequency converter and a fan, wherein the frequency converter is electrically connected with the fan and is used for controlling the rotating speed of the fan.
In an embodiment of the application, a blow-off hole which is communicated from top to bottom is formed in the bottom wall of the laser smoke concentration measuring chamber, a dust collecting chamber is arranged in the cabinet below the laser smoke concentration measuring chamber, the dust collecting chamber is communicated with the laser smoke concentration measuring chamber through the blow-off hole, and a cleaning opening is formed below the side wall of the cabinet where the dust collecting chamber is located.
In an embodiment of this application, the extraction probe includes sampling pipe and back flow, and the input of sampling pipe passes through the flange mounting in the flue with the output of back flow, and the output of sampling pipe is connected with laser smoke and dust concentration measurement room, and the input of back flow is connected with jet pump's output.
In an embodiment of the application, a heating cylinder for heating the collected flue gas sample is arranged between the sampling pipe and the laser smoke concentration measuring chamber.
In an embodiment of the application, a controller is arranged on the side wall of the cabinet, and the controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the frequency converter, the fan and the heating cylinder respectively.
In an embodiment of the present application, the input end of the sampling tube and the output end of the return tube are respectively bent in opposite directions.
In an embodiment of the present application, a laser transmitter-receiver is disposed inside the laser smoke concentration measuring chamber, and the laser transmitter-receiver is configured to transmit laser to smoke particles in the laser smoke concentration measuring chamber and receive optical signals reflected by the smoke particles.
The application provides an easy maintenance formula smoke and dust concentration measurement appearance through being provided with extraction probe, laser smoke and dust concentration measurement room and the jet pump that connects gradually, adopts the sampling of fluidic technology completion flue gas for the flue gas that the extraction probe was gathered is drawn by the jet pump and is penetrated and continuously steadily through laser smoke and dust concentration measurement room, and then utilizes the scattered light measurement principle to measure the smoke and dust concentration. In addition, the frequency conversion air supply device designed by the application is respectively connected with the extraction probe and the laser smoke concentration measuring chamber through the four-way piece, and can respectively perform back flushing on the extraction probe and the laser smoke concentration measuring chamber. In conclusion, the laser smoke concentration measuring device can respectively perform backflushing on the extraction probe and the laser smoke concentration measuring chamber under the condition of completing smoke concentration measurement, backflushing cleaning of different frequencies is performed on parts with different pollution degrees, the interiors of the parts are not easy to block, the parts are not required to be manually and laboriously disassembled and replaced, and the effect of convenient maintenance is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic front view of an easy-maintenance smoke concentration measuring instrument according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a framework of an easy-maintenance soot concentration measuring instrument according to an embodiment of the present application;
FIG. 3 is a schematic view illustrating a gas flow direction during measurement by an easy-maintenance soot concentration measuring apparatus according to an embodiment of the present application;
FIG. 4 is a schematic view illustrating a gas flow direction when the easy-maintenance soot concentration measuring apparatus according to an embodiment of the present disclosure recoils a measuring chamber;
fig. 5 is a schematic view illustrating a gas flow direction when the easy-maintenance soot concentration measuring instrument according to an embodiment of the present application performs back flushing on the extraction probe.
Description of reference numerals:
1. extracting the probe; 11. a sampling tube; 12. a return pipe; 13. a flange;
2. a laser smoke concentration measuring chamber; 21. a sewage draining hole;
3. a jet pump;
4. a recoil assembly; 41. a variable frequency air supply device; 411. a frequency converter; 412. a fan; 42. an air outlet pipe; 43. a first recoil pipe; 44. a second recoil pipe; 45. a four-way member; 46. an induced draft pipe;
51. a first solenoid valve; 52. a second solenoid valve; 53. a third electromagnetic valve; 54. a fourth solenoid valve;
6. a dust collecting chamber; 61. cleaning the opening;
7. a heating cylinder;
8. a laser transmitter-receiver;
10. a cabinet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present application, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms referred to in the present application are explained first:
four-way piece: also called four-way joint or four-way joint, etc., which is mainly used for changing the fluid direction and is used at the branch pipe of the main pipeline.
An embodiment of the present application provides an easy maintenance formula smoke and dust concentration measurement appearance, as shown in fig. 1, including rack 10, extraction probe 1, jet pump 3 and be used for smoke and dust concentration detection's laser smoke and dust concentration measurement room 2, laser smoke and dust concentration measurement room 2 and jet pump 3 all set up in rack 10, and rack 10 is used for protecting instruments such as inside laser smoke and dust concentration measurement room 2, jet pump 3 and avoiding invading such as rainwater, still is used for assembling each part of smoke and dust concentration measurement appearance so that carry. A hanging piece for storing the extraction probe 1 can be further arranged on the cabinet 10, so that the extraction probe 1 is convenient to store when not in use.
An extraction probe 1 which is connected into a laser smoke concentration measuring chamber 2 and used for extracting a smoke sample in a flue is arranged outside the machine cabinet 10, an air outlet of the laser smoke concentration measuring chamber 2 is connected with one input end of a jet pump 3, and the laser smoke concentration measuring chamber 2 is further connected with a backflushing assembly 4. The jet pump 3 is used for ejecting the flue gas, so that the flue gas continuously passes through the laser smoke concentration measuring chamber 2, and the scattered light test in the laser smoke concentration measuring chamber 2 can be stably carried out. Jet pump 3 sets up behind laser smoke and dust concentration measurement room 2, and the flue gas in the laser smoke and dust concentration measurement room 2 is not diluted, and the measurement of smoke and dust concentration is more accurate.
The backflushing assembly 4 comprises a variable frequency air supply device 41, an air outlet pipe 42, a first backflushing pipe 43, a second backflushing pipe 44, a four-way piece 45 and an air guide pipe 46.
The first end of the four-way component 45 is communicated with the variable-frequency air supply device 41 through an air outlet pipe 42, and the air outlet pipe 42 is an air outlet pipeline of the variable-frequency air supply device 41 and is used for guiding out air generated by the variable-frequency air supply device 41.
The second end of the four-way member 45 is communicated with the extraction probe 1 through the first backflushing pipe 43, and when the variable frequency air supply device 41 is communicated with the extraction probe 1, high-pressure air generated by the variable frequency air supply device 41 can backflush the extraction probe 1, so that dust accumulated on the extraction probe 1 falls off.
The third end of the four-way member 45 is communicated with the laser smoke concentration measuring chamber 2 through a second backflushing pipe 44, and when the variable frequency air supply device 41 is communicated with the laser smoke concentration measuring chamber 2, high-pressure gas generated by the variable frequency air supply device 41 can backflush an optical mirror surface in the laser smoke concentration measuring chamber 2.
The fourth end of the four-way member 45 is connected with the other input end of the jet pump 3 through the air inducing pipe 46, and when the variable frequency air supply device 41 is communicated with the jet pump 3, high pressure air can be introduced into the jet pump 3, so that smoke is induced, and the smoke concentration is measured.
Because the optical mirror surfaces in the extraction probe 1 and the laser smoke concentration measuring chamber 2 are polluted by smoke at different degrees, the frequency of backflushing is different, the extraction probe 1 is firstly contacted with smoke, a filter layer is always arranged in the extraction probe 1, more smoke is easily accumulated in the filter layer in the extraction probe 1 after long-time use, and more backflushing is needed; and the optical mirror surface in the laser smoke concentration measuring chamber 2 is protected by the filter layer in the extraction probe 1, smoke is not easy to adhere to, the frequency of backflushing is low, and if the extraction probe 1 and the laser smoke concentration measuring chamber 2 are backflushed and cleaned simultaneously, the optical mirror surface in the laser smoke concentration measuring chamber 2 can be damaged by frequent backflushing and cleaning.
The application provides an easy maintenance formula smoke and dust concentration measurement appearance through being provided with extraction probe 1, laser smoke and dust concentration measurement room 2 and the jet pump 3 that connects gradually, adopts the sampling of fluidic technology completion flue gas for the flue gas that extraction probe 1 gathered is drawn by jet pump 3 and is penetrated and continuously steadily through laser smoke and dust concentration measurement room 2, and then utilizes the scattered light measurement principle to measure smoke and dust concentration. In addition, the variable frequency air supply device 41 designed by the application is respectively connected with the extraction probe 1 and the laser smoke concentration measuring chamber 2 through the four-way piece 45, and can respectively perform back flushing on the extraction probe 1 and the laser smoke concentration measuring chamber 2. In conclusion, the extraction probe 1 and the laser smoke concentration measuring chamber 2 can be respectively backflushed under the condition of finishing smoke concentration measurement, backflush cleaning with different frequencies is carried out on parts with different pollution degrees, the interiors of the parts are not easy to block, the parts are not required to be disassembled and replaced by manpower difficultly, and the effect of convenient maintenance is realized.
In some embodiments, as shown in fig. 2 to 5, a first electromagnetic valve 51 is disposed between the laser soot concentration measuring chamber 2 and the extraction probe 1 at the front end thereof, a second electromagnetic valve 52 is disposed on the first recoil pipe 43, a third electromagnetic valve 53 is disposed on the second recoil pipe 44, and a fourth electromagnetic valve 54 is disposed on the induced duct 46.
When the easy-maintenance smoke concentration measuring instrument provided by the application is used for measuring, as shown in fig. 3, the first electromagnetic valve 51 and the fourth electromagnetic valve 54 are opened, other electromagnetic valves are closed, high-pressure gas generated by the variable-frequency air supply device 41 enters the jet pump 3 through the induced air pipe 46 to inject smoke, and the smoke sequentially enters the jet pump 3 through the extraction probe 1 and the laser smoke concentration measuring chamber 2.
When the easy-maintenance smoke concentration measuring instrument provided by the application is used for backflushing the laser smoke concentration measuring chamber 2, as shown in fig. 4, the third electromagnetic valve 53 is opened, other electromagnetic valves are closed, gas generated by the variable-frequency air supply device 41 enters the laser smoke concentration measuring chamber 2 through the second backflushing pipe 44, and is discharged with particulate matter impurities after backflushing.
When the easy-maintenance smoke concentration measuring instrument provided by the application is used for backflushing the extraction probe 1, as shown in fig. 5, the second electromagnetic valve 52 is opened, other electromagnetic valves are closed, gas generated by the variable-frequency air supply device 41 enters the extraction probe 1 through the first backflushing pipe 43, and is discharged from the extraction probe 1 with particulate impurities after backflushing.
In some embodiments, as shown in fig. 1, the variable frequency air supply device 41 comprises a frequency converter 411 and a fan 412, and the frequency converter 411 is electrically connected to the fan 412 and is used for controlling the rotation speed of the fan 412. Because the air flow rate of the high-pressure input end of the jet pump 3, the backflushing air flow rate required by the laser smoke concentration measuring chamber 2 and the backflushing air flow rate required by the extraction probe 1 are different, the frequency converter 411 is used for changing the rotating speed of the fan 412 so as to change the air flow rate emitted by the fan 412, and therefore the jet pump is suitable for different working conditions.
In some embodiments, as shown in fig. 1, a blow-off hole 21 is formed in the bottom wall of the laser soot concentration measuring chamber 2, and after the laser soot concentration measuring chamber 2 is backflushed, the backflush gas with the particulate impurities is discharged from the blow-off hole 21. A dust collection chamber 6 is arranged in the machine cabinet 10 below the laser smoke concentration measuring chamber 2, the dust collection chamber 6 is communicated with the laser smoke concentration measuring chamber 2 through a blow-off hole 21, and the dust collection chamber 6 is used for collecting the back-flushed particulate impurities. A cleaning port 61 is formed in the lower portion of the side wall of the cabinet 10 where the dust collection chamber 6 is located, and particulate impurities which are generated by back flushing are accumulated for a period of time and then are discharged out of the cabinet 10 from the cleaning port 61.
In some embodiments, as shown in fig. 1, the extraction probe 1 comprises a sampling pipe 11 and a return pipe 12, and specifically, the sampling pipe 11 and the return pipe 12 extend from a side wall of the cabinet 10, the side wall is close to a chimney to be sampled, the sampling pipe 11 and the return pipe 12 outside the cabinet 10 are mounted on a flange, and the flange 13 is mounted on a side wall of the chimney at an angle to complete the mounting of the extraction probe 1. When the measurement sampling point needs to be replaced or the extraction probe 1 needs to be replaced, the extraction probe 1 can be taken out of the chimney through the dismounting flange 13, and the mounting and dismounting method of the extraction probe 1 is simple and easy to maintain.
The input of sampling pipe 11 passes through flange 13 with the output of back flow 12 and installs in the flue, the output of sampling pipe 11 is connected with laser smoke and dust concentration measurement room 2, the input of back flow 12 is connected with jet pump 3's output, the flue gas flows through sampling pipe 11 in proper order, laser smoke and dust concentration measurement room 2, jet pump 3, back flow 12 has accomplished the extraction and the return of flue gas, the velocity of flow that makes the flue gas that gets into laser smoke and dust concentration measurement room 2 like this is the same with the velocity of flow of flue gas in the flue, can improve the accuracy of testing result.
In some embodiments, as shown in fig. 1, the input end of the sampling tube 11 and the output end of the return tube 12 are respectively bent in opposite directions. Specifically, sampling pipe 11 and back flow 12 pass through flange 13 to be installed on the chimney lateral wall, and the flue gas in the chimney flows upwards, and sampling pipe 11 is located back flow 12 below, and sampling pipe 11's input bends downwards, and the output of back flow 12 bends upwards, and the pipeline port of bending can get into and discharge for the flue gas and draw probe 1 and provide the direction to do benefit to the circulation of flue gas.
In some embodiments, as shown in fig. 1, a heating cartridge 7 for heating the collected flue gas sample is disposed between the sampling tube 11 and the laser soot concentration measurement chamber 2. The heating cylinder 7 can be a heating cyclone cylinder to continuously heat the flue gas before entering the laser smoke concentration measuring chamber 2, so that the temperature of the flue gas before entering the laser smoke concentration measuring chamber 2 is above the dew point temperature, and the measurement deviation caused by flue gas condensation in the transmission process is prevented. In addition, a heat insulation layer can be sleeved outside the sampling pipe 11 to prevent the temperature of the flue gas from dropping in the collection process.
In some embodiments, as shown in fig. 1, a controller is disposed on a side wall of the cabinet 10, and the controller is electrically connected to the first solenoid valve 51, the second solenoid valve 52, the third solenoid valve 53, the fourth solenoid valve 54, the frequency converter 411, the fan 412, and the heating cylinder 7, respectively. The controller can control the on-off of each solenoid valve respectively according to the operating condition of difference, and the controller can also control the output of converter 411 and fan 412, and the controller can also control start-stop time etc. of cartridge heater 7, makes things convenient for personnel's operation more.
In some embodiments, as shown in fig. 1, the laser soot concentration measuring chamber 2 is a closed dark chamber, and a laser transmitter-receiver 8 is disposed inside the chamber, and the laser transmitter-receiver 8 is used for transmitting laser light to the soot particles in the laser soot concentration measuring chamber 2 and receiving optical signals reflected by the soot particles. Specifically, the laser transmitter-receiver 8 emits a beam of modulated light with a wavelength of about 650nm to smoke particles in the flue gas, scattered light generated by scattering of the smoke particles is recorded by the laser transmitter-receiver 8, and the concentration of the smoke can be obtained after processing by a microprocessor in the laser transmitter-receiver 8 because the intensity of the scattered light is in direct proportion to the concentration of the smoke.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. An easy-maintenance type smoke concentration measuring instrument is characterized by comprising a cabinet (10), an extraction probe (1), a jet pump (3) and a laser smoke concentration measuring chamber (2) for detecting smoke concentration, wherein the laser smoke concentration measuring chamber (2) and the jet pump (3) are both arranged in the cabinet (10), the extraction probe (1) which is connected into the laser smoke concentration measuring chamber (2) and is used for extracting a smoke sample in a flue is arranged outside the cabinet (10), an air outlet of the laser smoke concentration measuring chamber (2) is connected with one input end of the jet pump (3), and the laser smoke concentration measuring chamber (2) is also connected with a recoil assembly (4);
the backflushing component (4) comprises a variable-frequency air supply device (41), an air outlet pipe (42), a first backflushing pipe (43), a second backflushing pipe (44), a four-way part (45) and an air guide pipe (46), wherein the first end of the four-way part (45) is communicated with the variable-frequency air supply device (41) through the air outlet pipe (42), the second end of the four-way part (45) is communicated with the extraction probe (1) through the first backflushing pipe (43), the third end of the four-way part (45) is communicated with the laser smoke concentration measuring chamber (2) through the second backflushing pipe (44), and the fourth end of the four-way part (45) is connected with the other input end of the jet pump (3) through the air guide pipe (46).
2. The easy-to-maintain smoke concentration measuring instrument according to claim 1, wherein a first electromagnetic valve (51) is arranged between the laser smoke concentration measuring chamber (2) and the extraction probe (1) at the front end of the laser smoke concentration measuring chamber, a second electromagnetic valve (52) is arranged on the first recoil pipe (43), a third electromagnetic valve (53) is arranged on the second recoil pipe (44), and a fourth electromagnetic valve (54) is arranged on the induced duct (46).
3. The easy-maintenance smoke concentration measuring instrument according to claim 2, wherein the variable frequency air supply device (41) comprises a frequency converter (411) and a fan (412), and the frequency converter (411) is electrically connected with the fan (412) and used for controlling the rotating speed of the fan (412).
4. The easy-maintenance smoke concentration measuring instrument according to claim 1, wherein a blow-off hole (21) is formed in the bottom wall of the laser smoke concentration measuring chamber (2) and penetrates up and down, a dust collecting chamber (6) is arranged in the cabinet (10) below the laser smoke concentration measuring chamber (2), the dust collecting chamber (6) is communicated with the laser smoke concentration measuring chamber (2) through the blow-off hole (21), and a cleaning opening (61) is formed below the side wall of the cabinet (10) where the dust collecting chamber (6) is located.
5. The easy-maintenance smoke concentration measuring instrument according to claim 3, wherein the extraction probe (1) comprises a sampling pipe (11) and a return pipe (12), an input end of the sampling pipe (11) and an output end of the return pipe (12) are installed in a flue through a flange (13), an output end of the sampling pipe (11) is connected with the laser smoke concentration measuring chamber (2), and an input end of the return pipe (12) is connected with an output end of the jet pump (3).
6. The easy-to-maintain soot concentration measuring instrument according to claim 5, characterized in that a heating cylinder (7) for heating the collected smoke sample is arranged between the sampling tube (11) and the laser soot concentration measuring chamber (2).
7. The easy-to-maintain soot concentration measuring instrument according to claim 6, wherein a controller is disposed on a side wall of the cabinet (10), and the controller is electrically connected to the first solenoid valve (51), the second solenoid valve (52), the third solenoid valve (53), the fourth solenoid valve (54), the frequency converter (411), the fan (412) and the heating cylinder (7), respectively.
8. The easy-to-maintain soot concentration measuring instrument according to claim 5, wherein the input end of the sampling tube (11) and the output end of the return tube (12) are respectively bent in opposite directions.
9. The easy-to-maintain soot concentration measuring instrument according to any one of claims 1-8, wherein the laser soot concentration measuring chamber (2) is internally provided with a laser transmitter-receiver (8), and the laser transmitter-receiver (8) is used for transmitting laser light to soot particles in the laser soot concentration measuring chamber (2) and receiving optical signals reflected by the soot particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220865437.1U CN217237660U (en) | 2022-04-14 | 2022-04-14 | Easy-to-maintain smoke concentration measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220865437.1U CN217237660U (en) | 2022-04-14 | 2022-04-14 | Easy-to-maintain smoke concentration measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217237660U true CN217237660U (en) | 2022-08-19 |
Family
ID=82818274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220865437.1U Active CN217237660U (en) | 2022-04-14 | 2022-04-14 | Easy-to-maintain smoke concentration measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217237660U (en) |
-
2022
- 2022-04-14 CN CN202220865437.1U patent/CN217237660U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205384207U (en) | High sensitivity particulate matter laser monitor based on dilution method | |
| EP1977215B1 (en) | Contaminant analyzer for fuel | |
| CN109737898B (en) | System for realizing online test of high-temperature corrosion of water-cooled wall | |
| CN107219156A (en) | Measuring concentration of granules in certain instrument suitable for low, wet flue gas | |
| CN103813834B (en) | The fire detection method of dust collect plant and dust collect plant | |
| CN104390818A (en) | Smoke constant speed constant current sampling device and method | |
| CN204944994U (en) | A kind of high-humidity gas fume dust concentration on-line measuring device | |
| JPH09257667A (en) | Dust-concentration measuring device | |
| CN109164027A (en) | air filter performance test system | |
| CN107576601A (en) | Suitable for the particulate matter on-line checking and analysis meter in urban track traffic place | |
| CN217237660U (en) | Easy-to-maintain smoke concentration measuring instrument | |
| CN106370573A (en) | Heating extraction type smoke on-line detection system and corresponding detection method | |
| CN211877763U (en) | Optical air chamber probe and pipeline flowing gas real-time detection device | |
| CN108593367A (en) | A kind of flue gas multicomponent multidraw measuring system and method | |
| CN201417249Y (en) | Plug-in type on-line gas analysis system that can be calibrated automatically | |
| CN206038383U (en) | A net multi -point sampling system for monitoring of multi -phase fluid medium composition | |
| CN209961656U (en) | Dust concentration detection device based on multi-angle collected image | |
| CN207096046U (en) | A kind of low concentrations of particulates thing measuring instrument suitable for wet flue gas | |
| CN209606149U (en) | Flue gas smoke detector | |
| CN111307677A (en) | Laser front scattering particulate matter monitoring device | |
| CN201795972U (en) | On-line dust detector | |
| JP2011002232A (en) | Light transmission type analyzer | |
| CN116256030A (en) | Method for detecting flue gas flow by utilizing spectral feature absorption and spectral flowmeter | |
| CN207123472U (en) | Suitable for the particulate matter on-line checking and analysis meter in urban track traffic place | |
| CN212432910U (en) | Device for rapidly measuring concentration of particulate matters in gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |