CN115266281B - Burning dust generating device - Google Patents
Burning dust generating device Download PDFInfo
- Publication number
- CN115266281B CN115266281B CN202211188675.4A CN202211188675A CN115266281B CN 115266281 B CN115266281 B CN 115266281B CN 202211188675 A CN202211188675 A CN 202211188675A CN 115266281 B CN115266281 B CN 115266281B
- Authority
- CN
- China
- Prior art keywords
- combustion
- gas
- outlet
- communicated
- air
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 99
- 238000002485 combustion reaction Methods 0.000 claims abstract description 108
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 238000007664 blowing Methods 0.000 claims abstract description 15
- 239000010453 quartz Substances 0.000 claims description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 66
- 238000007789 sealing Methods 0.000 claims description 34
- 238000005245 sintering Methods 0.000 claims description 33
- 238000010926 purge Methods 0.000 claims description 16
- 238000010410 dusting Methods 0.000 claims 6
- 238000010408 sweeping Methods 0.000 claims 4
- 239000000779 smoke Substances 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000004088 simulation Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 135
- 239000013618 particulate matter Substances 0.000 description 6
- 239000002775 capsule Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004164 analytical calibration Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
- G01N33/0072—Arrangements to check the analyser by generating a test gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N2001/2893—Preparing calibration standards
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Incineration Of Waste (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention discloses a combustion dust generating device, which belongs to the technical field of dust simulation and comprises a box body, wherein a combustion chamber is fixed on the box body, a combustion head is vertically and slidably installed on the box body and driven by a lifting power device, a gas nozzle and a combustion-supporting air chamber are arranged on the combustion head, a dust filtering device is arranged in the combustion-supporting air chamber, the gas nozzle is communicated with a gas inlet joint, the combustion-supporting air chamber is communicated with the combustion-supporting air inlet joint, the gas inlet joint is communicated with a gas quantitative supply system, the combustion-supporting air inlet joint is communicated with a compressed air quantitative supply system, a dust outlet and a blowing port are arranged at the bottom of the combustion chamber, the blowing port is communicated with a quantitative blowing pipeline, and the dust outlet is communicated with a dust outlet pipeline with a dust concentration measuring instrument. The combustion dust generating device can generate dust-containing smoke gas to simulate automobile tail gas through incomplete combustion, so that a detection scene is restored as far as possible, and the calibration requirement of an automobile tail gas detection system is met.
Description
Technical Field
The invention relates to the technical field of dust simulation, in particular to a combustion dust generating device which is used for generating smoke through incomplete combustion to simulate automobile exhaust.
Background
The automobile tail gas detecting system is one tail gas detecting system for motor vehicle running in set speed range, and can measure the tail gas value of motor vehicle on road without affecting the normal running of motor vehicle, and the tail gas of motor vehicle has mainly gaseous pollutant and particle matter, including CO, CO2, HC and NO.
The automobile exhaust detection system needs to be calibrated before leaving a factory or after being used for a period of time so as to avoid the detection result from having larger errors, and therefore an auxiliary calibration device is needed to be used for calibration.
However, in the current automobile exhaust gas detection system, the simulation of the particulate matter of the exhaust gas is mainly realized by quantitative dust generation through a dust generation device, for example, a publication in CN202010178896.8 discloses a portable dust instrument calibration device, in which a dust generation device is disclosed, which can realize quantitative dust generation, and then the state of the dust generated by the dust generation device is not the same as the state of the particulate matter in the automobile exhaust gas, and the dust generated by the dust generation device is not a smoke gas but a dust-containing gas, and the visibility of the dust generation device and the particulate matter is not the same, so that the calibration of the automobile exhaust gas detection system using the dust generation device for generating dust is not reasonable, and the calibration result is difficult to convincite. In addition, the concentration of particulate matters in the smoke, the flow rate of the particulate matters and the like are required during calibration, and it is obvious that the current dust generating device cannot completely and accurately simulate the tail gas of the automobile.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a burning dust device, this burning dust device can not the incomplete combustion produce the simulation automobile exhaust of dusty flue gas to the scene is detected in the reduction as far as, satisfies automobile exhaust detecting system's calibration requirement.
In order to solve the technical problem, the technical scheme of the invention is as follows: the utility model provides a burning dust generating device, includes the box, be fixed with the combustion chamber on the box, the upper end opening of combustion chamber, vertical slidable mounting has the combustion head by lift power device drive on the box, the combustion head by the sealed cooperation of the upper end opening of lift power device drive and combustion chamber, be provided with gas nozzle and combustion-supporting air chamber on the combustion head, combustion-supporting air chamber's export surrounds the gas nozzle, be provided with dust filter in the combustion-supporting air chamber, the gas nozzle communicates with the one end of gas air inlet joint, combustion-supporting air chamber communicates with the one end of combustion-supporting air inlet joint, the other end and the gas quantitative supply system intercommunication of gas air inlet joint, combustion-supporting air inlet joint's the other end and compressed air quantitative supply system intercommunication, the bottom of combustion chamber is provided with out dirt mouth and sweeps the mouth, mouthful department sweep in the box and with quantitative sweep the pipeline intercommunication, go out dirt mouth and the play dirt pipeline intercommunication of taking dust concentration measuring instrument.
As a preferred scheme, the gas quantitative supply system comprises a gas storage bottle and a gas flowmeter, an outlet of the gas storage bottle is communicated with an inlet of the gas flowmeter, a gas path adapter is fixed outside the box body, the gas path adapter is provided with a first gas inlet joint and a first gas outlet joint, a second gas inlet joint and a second gas outlet joint, a third gas inlet joint and a third gas outlet joint, a fourth gas inlet joint and a fourth gas outlet joint which are correspondingly communicated one by one, the first gas inlet joint, the second gas inlet joint, the third gas inlet joint and the fourth gas inlet joint are located inside the box body, and the first gas outlet joint, the second gas outlet joint, the third gas outlet joint and the fourth gas outlet joint are located outside the box body; the outlet of the gas flowmeter is communicated with a first gas inlet joint, and the first gas outlet joint is communicated with a gas inlet joint through a pipeline;
the compressed air quantitative supply system comprises a compressed air fan for providing air power, an air outlet of the compressed air fan is communicated with an inlet end of a four-way joint fixed on a box body, a first outlet end and a second outlet end of the four-way joint are communicated with an inlet of a first air flow meter and an inlet of a second air flow meter respectively, the first air flow meter and the second air flow meter are fixed outside the box body, the first air flow meter and a blowing port are communicated to form the quantitative blowing pipeline, an outlet of the second air flow meter is communicated with a second air inlet joint, a second air outlet joint is communicated with a combustion air inlet joint through a pipeline, a lifting power device is a lifting cylinder, a control valve for controlling the lifting cylinder to move is fixed on the box body, an air inlet control port, a first air outlet control port and a second air outlet control port are arranged on the control valve, a third outlet end of the four-way joint is communicated with an air inlet control port of the control valve through a pipeline, the first air outlet control port and the second air outlet control port are communicated with a third air inlet joint and a fourth air inlet joint of a switching seat respectively, and the third air outlet control port and the fourth air valve are communicated with an air inlet control port on the lifting cylinder respectively. By adopting the structure, the dust generating device simplifies and integrates the control gas circuit, the purging gas circuit, the gas circuit and the combustion air circuit of the lifting cylinder by utilizing the four-way connector and the gas circuit adapter, thereby being more convenient for connecting the gas circuits.
As a preferable scheme, the combustion chamber comprises an upper seat and a lower seat, the upper seat and the lower seat are connected through a connecting rod, a quartz tube assembly is installed between the upper seat and the lower seat, a combustion chamber is formed inside the quartz tube assembly, a purging chamber communicated with the combustion chamber is arranged on the lower seat, the dust outlet and the purging port are both arranged on the lower seat, the purging port is connected with a purging joint, and the dust outlet is communicated with a dust outlet joint outside the box body through a pipeline;
an upper guide fixing cylinder is fixed on the upper seat and fixedly connected with the upper end of the quartz tube assembly, a closed guide cavity is arranged on the upper guide fixing cylinder, and the guide cavity is matched with an outlet of the combustion-supporting air cavity. After the structure is adopted, the combustion chamber is simple and reasonable in structure, the state of internal flame can also be observed as the combustion chamber high temperature resistance while utilizing the quartz tube assembly, and simultaneously, the fixed section of thick bamboo of direction is provided with on the seat of honour, go up the direction cavity that is provided with the binding off on the fixed section of thick bamboo of direction, combustion air is through the direction cavity binding off when flowing from combustion air chamber's export like this, combustion air's air current can be increased like this, make the better parcel gas nozzle's of combustion air outside, the length of better control flame, thereby the degree of better control incomplete combustion.
As a preferred scheme, the quartz tube assembly comprises an outer quartz tube and an inner quartz tube, the lower ends of the outer quartz tube and the inner quartz tube are connected in a positioning manner through a lower connecting seat, the lower connecting seat comprises a lower positioning ring protruding upwards, the inner quartz tube is inserted into the lower positioning ring, a lower communicating hole for communicating the inner quartz tube with the purging chamber is arranged in the lower positioning ring on the lower connecting seat, the outer quartz tube is sleeved outside the lower positioning ring, a lower mounting step opening is arranged on the lower seat, the lower connecting seat is mounted in the lower mounting step opening and supported by a step, the outer wall of the outer quartz tube is in positioning contact with the vertical surface of the lower mounting step opening, a lower fixing ring plate is sleeved outside the outer quartz tube, a lower sealing member is arranged in the lower mounting step opening, the lower fixing ring plate is fixed on the lower seat and tightly seals the lower sealing member, the lower port of the upper guiding fixing cylinder is sleeved outside the inner quartz tube, the upper end of the upper guiding fixing cylinder is provided with a positioning outer edge, the upper fixing ring opening is in positioning fit with an upper fixing step opening, the upper fixing ring and an upper fixing sealing member is arranged in a sealing structure which is arranged in a manner that the upper fixing ring and an upper fixing step opening and an upper fixing sealing member is connected with the upper fixing ring and an upper fixing step opening, and an upper fixing sealing member are arranged in a quartz tube, and a lower fixing structure which are arranged in a quartz tube, and a quartz tube which is arranged on the quartz tube, and a quartz tube which are arranged outside fixing structure which are arranged on the quartz tube, and the outer quartz capsule can effectual thermal-insulated processing to utilize lower connecting seat, lower fixed ring board, upper bracket and last fixed ring board can be better fixed outer quartz capsule and interior quartz capsule and fine sealed, thereby guarantee good gas tightness.
As an optimal scheme, the combustion head includes the combustion head body, be provided with the gas passageway on the combustion head body, the inlet end of gas passageway can be dismantled and is connected with the gas air inlet joint, the gas nozzle vertical insert the combustion head this internal and with the end intercommunication of giving vent to anger of gas passageway, combustion-supporting air chamber sets up on the combustion head body and is located the below of gas passageway, dust filter equipment sets up in the gas air chamber, combustion-supporting air chamber's lower extreme opening just is provided with the even flow device that makes things convenient for combustion-supporting air to pass through, utilizes dust filter equipment can effectual filtration dust, avoids drawing new particulate matter, simultaneously, utilizes even flow device can make the more even outflow of combustion-supporting air, and the stability of the incomplete combustion of gas is higher like this, and the state when avoiding burning is undulant.
As a preferred scheme, dust filter equipment and even flow device are same even flow device of filtering, even flow device of filtering includes at least one sintering crown plate, the sintering crown plate is fixed in on the inner wall of combustion-supporting air cavity lower extreme exit, the gas nozzle pass through the adapter sleeve connect in the centre bore of sintering crown plate, consequently can filter the dust in the combustion-supporting air through this sintering crown plate, simultaneously because the sintering crown plate is formed through sintering process, the sintering crown plate has very many micropores, this micropore can make things convenient for combustion-supporting air to pass through to with combustion-supporting air even flow, consequently, carried out function combination with dust filter equipment and even flow device, the structure is simpler, and the reliability is also higher.
As a preferred scheme, the quantity of sintering crown plate is two, combustion-supporting air chamber lower extreme export is provided with the ladder installing port, and two sintering crown plates are installed and are provided with the backing ring in the ladder installing port and between them, be provided with the locking snap ring that compresses tightly the sintering crown plate of below on the inner wall of combustion-supporting air chamber lower extreme export, this sintering crown plate's quantity is two, the even flow of assurance that can be further and the filterable effect of dust, and simultaneously, utilize the locking snap ring can make things convenient for clamping of sintering crown plate very much fixedly, and the backing ring can effectual support sintering crown plate.
As a preferable scheme, the connecting sleeve comprises a sleeve body clamped into the centers of the two sintered annular plates, a positioning flange is arranged at the upper end of the sleeve body, and a central snap ring is clamped at the lower end of the sleeve body. The connecting sleeve can be convenient for the gas nozzle to be supported and fixed.
As a preferred scheme, the upper opening of the upper seat is provided with a sealing step protruding upwards, the periphery of the sealing step is provided with a guide chamfer, the lower end of the combustion head body is provided with a sealing ring, and the opening at the lower end of the combustion head body is sleeved on the sealing step and extrudes the sealing ring to be in sealing fit. Through the structure, the upper seat and the combustion head body can be better and conveniently aligned, the guide chamfer is convenient to guide, and the combustion head body and the upper seat can be more reliably sealed.
After the technical scheme is adopted, the invention has the effects that: because the combustion dust generating device comprises a box body, a combustion chamber is fixed on the box body, the upper end of the combustion chamber is opened, a combustion head driven by a lifting power device is vertically and slidably installed on the box body, the combustion head is driven by the lifting power device to be in sealing fit with the upper end opening of the combustion chamber, a gas nozzle and a combustion-supporting air chamber are arranged on the combustion head, an outlet of the combustion-supporting air chamber surrounds the gas nozzle, a dust filtering device is arranged in the combustion-supporting air chamber, the gas nozzle is communicated with one end of a gas inlet joint, the combustion-supporting air chamber is communicated with one end of a combustion-supporting air inlet joint, the other end of the gas inlet joint is communicated with a gas quantitative supply system, the other end of the combustion-supporting air inlet joint is communicated with a compressed air quantitative supply system, and a dust outlet and a blowing opening are formed in the bottom of the combustion chamber, the blowing port is positioned in the box body and is communicated with the quantitative blowing pipeline, the dust outlet is communicated with the dust outlet pipeline with the dust concentration measuring instrument, after the structure is adopted, the gas is quantitatively introduced into the gas nozzle through the gas quantitative supply system, meanwhile, the combustion-supporting air is quantitatively introduced into the combustion-supporting air chamber through the compressed air quantitative supply system, the incomplete combustion degree can be controlled by controlling the amount of the gas and the combustion-supporting air, the flame can generate dust-containing smoke gas after incomplete combustion in the closed combustion chamber, meanwhile, because the flame is arranged downwards, the length of the flame during combustion can be reduced, the incomplete combustion of the gas can be better controlled, the dust filtering device can effectively filter particles in the combustion-supporting air, and the inaccuracy of a calibration result caused by leading out other particles can be avoided, the dust-containing smoke with incomplete combustion is very similar to dust-containing smoke generated by incomplete combustion of an automobile engine, and the degree of incomplete combustion can be controlled, so that the dust generation amount is accurately controlled, the sweep gas is quantitatively introduced into the quantitative sweep pipeline to blow the dust-containing smoke out of the dust outlet, the amount of the sweep gas is controllable, the flow speed and the flow of the whole dust-containing gas can be controlled, then the dust concentration value of the dust-containing smoke can be obtained after the dust-containing smoke passes through the dust concentration measuring instrument, the dust concentration measuring instrument is a calibrated standard instrument, the dust-containing smoke is introduced into a calibration cavity of a calibration device of an automobile exhaust detection system, at the moment, light is scattered and attenuated after passing through the calibration cavity, characteristics such as spectrum and intensity received by a receiving end can be changed, so that the calibration is convenient, the dust content of the dust-containing smoke emitted by the combustion dust generating device is known and controllable, so that the emission of automobile exhaust can be simulated, and the calibration accuracy of the automobile exhaust detection system is ensured.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a perspective view of another angle configuration of an embodiment of the present invention;
FIG. 3 is a schematic view of the internal structure of the combustion dust-generating device with the housing hidden;
FIG. 4 is a schematic view of another angle of the internal structure of the combustion dust-generating apparatus with the housing hidden;
FIG. 5 is a top view of an embodiment of the present invention;
FIG. 6 isbase:Sub>A cross-sectional view at A-A of FIG. 5;
FIG. 7 is an enlarged cross-sectional view of FIG. 6 at B;
FIG. 8 is a partial cross-sectional view of the combustion chamber;
in the drawings: 1. a combustion dust generating device; 11. a box body; 12. a burner head; 121. a gas channel; 122. a combustion air chamber; 123. sintering the ring plate; 124. a backing ring; 125. a seal ring; 126. locking the snap ring; 127. connecting sleeves; 128. a center snap ring; 13. a lifting cylinder; 14. a gas nozzle; 15. a combustion chamber: 151. an upper seat; 152. A lower seat; 1521. a step opening is arranged at the lower part; 1522. a purge port; 153. a lower stationary ring plate; 154. an upper stationary ring plate; 155. an outer quartz tube; 156. an inner quartz tube; 157. an upper guide fixing cylinder; 1571. a guide chamber; 1572. positioning the outer edge; 158. A lower connecting seat; 1581. a lower positioning ring; 159. a lower communication hole; 1510. purging the chamber; 1511. a step opening is arranged on the upper part; 1512. a lower seal member; 1513. sealing the step; 1514. guiding and chamfering; 1515. an upper seal member; 16. a control valve; 161. a first outlet control port; 162. a second outlet control port; 163. an air inlet control port; 17. A gas flow meter; 18. a first air flow meter; 19. a second air flow meter; 110. a gas path adapter; 1101. a first air intake joint; 1102. a first air outlet joint; 1103. a second air inlet joint; 1104. a second air outlet joint; 1105. a third air inlet joint; 1106. a third air outlet joint; 1107. a fourth air intake joint; 1108. a fourth air outlet joint; 111. a four-way joint; 1111. an inlet end; 1112. a first outlet end; 1113. a second outlet end; 1114. a third outlet end; 112. a dust outlet; 113. a gas inlet joint; 114. a combustion air inlet joint; 115. purging the joint; 116. a gas supply pipe joint.
Detailed Description
The present invention is described in further detail below with reference to specific examples.
As shown in fig. 1 to 8, a combustion dust generating device 1 includes a box 11, a combustion chamber 15 is fixed on the box 11, an upper end of the combustion chamber 15 is open, a combustion head 12 driven by a lifting power device is vertically and slidably mounted on the box 11, the lifting power device preferably employs a lifting cylinder 13, although other linear power devices, such as a linear motor, are not excluded.
The combustion head 12 is driven by a lifting power device to be in sealing fit with an opening at the upper end of a combustion chamber 15, a gas nozzle 14 and a combustion-supporting air chamber 122 are arranged on the combustion head 12, an outlet of the combustion-supporting air chamber 122 surrounds the gas nozzle 14, a dust filtering device is arranged in the combustion-supporting air chamber 122, the gas nozzle 14 is communicated with one end of a gas inlet joint 113, the combustion-supporting air chamber 122 is communicated with one end of a combustion-supporting air inlet joint 114, the other end of the gas inlet joint 113 is communicated with a gas quantitative supply system, the other end of the combustion-supporting air inlet joint 114 is communicated with a compressed air quantitative supply system, wherein the combustion-supporting air directly adopts external air, and the gas adopts ethane or propane; the bottom of combustion chamber 15 is provided with dust outlet 112 and sweeps mouthful 1522, sweep mouthful 1522 in box 11 and with quantitative sweep pipeline intercommunication, dust outlet 112 communicates with the play dirt pipeline of taking dust concentration measuring instrument. The dust concentration measuring instrument is of a current structure, and can select a detection device of a dust concentration detector as described in patent number CN201721218267.3, so that the concentration of particulate matters in dust-containing smoke in the dust outlet 112 can be timely and accurately detected, and the concentration is used as particulate matter concentration contrast for calibrating an automobile exhaust gas detection system.
As shown in fig. 3 and 4, the gas metering system includes a gas cylinder and a gas flow meter 17, and the gas flow meter 17 and a first air flow meter 18 and a second air flow meter 19, which will be mentioned later, are rotameters, and can monitor and regulate the flow rate.
An outlet of the gas storage bottle is communicated with an inlet of a gas flowmeter 17, generally, the gas storage bottle is arranged outside a box body 11, a gas path adapter 110 and a gas supply pipe joint 116 are fixed outside the box body 11, the gas storage bottle is communicated with the gas supply pipe joint 116 through a gas supply pipeline, the gas supply pipe joint 116 is communicated with the inlet of the gas flowmeter 17, the gas path adapter 110 is provided with a first gas inlet joint 1101 and a first gas outlet joint 1102, a second gas inlet joint 1103 and a second gas outlet joint 1104, a third gas inlet joint 1105 and a third gas outlet joint 1106, a fourth gas inlet joint 1107 and a fourth gas outlet joint 1108 which are correspondingly communicated one by one, the first gas inlet joint 1101, the second gas inlet joint 1103, the third gas inlet joint 1105 and the fourth gas inlet joint 1107 are positioned inside the box body 11, and the first gas inlet joint 1102, the second gas outlet joint 1104, the third gas outlet joint 1106 and the fourth gas outlet joint are positioned outside the box body 11; the outlet of the gas flowmeter 17 is communicated with a first gas inlet joint 1101, and the first gas outlet joint 1102 is communicated with a gas inlet joint 113 through a pipeline;
the compressed air quantitative supply system comprises a compressed air fan for providing air power, the compressed air fan directly uses air outside a box body 11 as combustion-supporting air, an air outlet of the compressed air fan is communicated with an inlet end 1111 of a four-way joint 111 fixed on the box body 11, a first outlet end 1112 and a second outlet end 1113 of the four-way joint 111 are respectively communicated with an inlet of a first air flow meter 18 and an inlet of a second air flow meter 19, the first air flow meter 18 and the second air flow meter 19 are fixed outside the box body 11, the first air flow meter 18 is communicated with a blowing port 1522 to form the quantitative blowing pipeline, an outlet of the second air flow meter 19 is communicated with a second air inlet joint 1103, a second air outlet joint 1104 is communicated with the combustion-supporting air inlet joint 114 through a pipeline, the lifting power device is a lifting cylinder 13, a control valve 16 for controlling the movement of the lifting cylinder 13 is fixed on the box body 11, an air inlet control port 163, a first air outlet control port 161 and a second air outlet control port 162 are arranged on the control valve 16, a third outlet control port 163 of the four-way joint 111 is communicated with an air inlet control port 163 of the fourth air inlet joint 1106 and a fourth air inlet control joint 1106, and a fourth air inlet control joint 110 and a fourth air inlet control joint 1106. The dust generating device utilizes the four-way connector 111 and the air path adapter 110 to simplify and integrate the control air path, the purging air path, the fuel gas air path and the combustion air path of the lifting cylinder 13, thereby facilitating the connection of the air paths better.
As shown in fig. 6 to 8, the combustion chamber 15 includes an upper seat 151 and a lower seat 152, the upper seat 151 and the lower seat 152 are connected by a connecting rod, a quartz tube assembly is installed between the upper seat 151 and the lower seat 152, a combustion chamber is formed inside the quartz tube assembly, a purging chamber 1510 communicated with the combustion chamber is provided on the lower seat 152, the dust outlet 112 and the purging port 1522 are both provided on the lower seat 152, the purging port 1522 is connected with a purging joint 115, and the dust outlet 112 is in pipe communication with a dust outlet joint outside the box 11;
an upper guide fixing cylinder 157 is fixed on the upper seat 151, the upper guide fixing cylinder 157 is fixedly connected with the upper end of the quartz tube assembly, a closed guide chamber 1571 is arranged on the upper guide fixing cylinder 157, and the guide chamber 1571 is matched with an outlet of the combustion-supporting air chamber 122.
In this embodiment, the quartz tube assembly includes a transparent outer quartz tube 155 and an inner quartz tube 156, the lower ends of the outer quartz tube 155 and the inner quartz tube 156 are connected in a positioning manner by a lower connecting base 158, the lower connecting base 158 includes a lower positioning ring 1581 protruding upward, the inner quartz tube 156 is inserted into the lower positioning ring 1581, a lower communication hole 159 for communicating the inner cavity of the inner quartz tube 156 with the purging chamber 1510 is provided in the lower positioning ring 1581 on the lower connecting base 158, the outer quartz tube 155 is sleeved outside the lower positioning ring 1581, a lower mounting step hole 1521 is provided on the lower base 152, the lower connecting base 158 is mounted in the lower mounting step hole 1521 and supported by a step, the outer wall of the outer quartz tube 155 is in positioning contact with the vertical surface of the lower mounting step hole 1521, a lower fixing ring plate 153 is sleeved outside the outer quartz tube 155, a lower sealing element 1512 is arranged in the lower mounting stepped port 1521, the lower fixing ring plate 153 is fixed on the lower seat 152 to press and seal the lower sealing element 1512, the lower port of the upper guide fixing cylinder 157 is sleeved outside the inner quartz tube 156, the upper end of the upper guide fixing cylinder 157 is provided with a positioning outer edge 1572, the upper end of the outer quartz tube 155 is in positioning fit with the positioning outer edge 1572, the upper seat 151 is provided with an upper mounting stepped port 1511, the upper guide fixing cylinder 157 is inserted into the upper mounting stepped port 1511 from top to bottom, the upper end of the outer quartz tube 155 is simultaneously positioned and supported by the positioning outer edge 1572 and the step of the upper mounting stepped port 1511, the outer wall of the upper end of the outer quartz tube 155 is in positioning contact with the vertical surface of the upper mounting stepped port 1511, an upper sealing element 1515 is arranged in the upper mounting stepped port 1511, the outer part of the outer quartz tube 155 is sleeved with the upper fixing ring plate 154, after the structure is adopted, the lower ends of the inner quartz tube 156 and the outer quartz tube 155 are firstly sleeved on the lower connecting seat 158, the upper guide fixing cylinder 157 is sleeved outside the inner quartz tube 156, the outer positioning edge 1572 of the upper guide fixing sleeve can abut against the upper end of the outer quartz tube 155 at the moment, a quartz tube assembly is formed at the moment, the lower connecting seat 158 of the quartz tube assembly is placed on the lower mounting step opening 1521 of the lower seat 152, the upper seat 151 is mounted to enable the upper end of the outer quartz tube 155 to be in contact positioning with the step of the upper mounting step, and finally the lower fixing ring plate 153 and the upper fixing ring plate 154 are mounted to achieve sealing and fixing.
As shown in fig. 6 and 7, the combustion head 12 includes the combustion head 12 body, be provided with gas channel 121 on the combustion head 12 body, the inlet end of gas channel 121 can be dismantled and is connected with gas air inlet joint 113, gas nozzle 14 vertically insert combustion head 12 this internal and with the end intercommunication of giving vent to anger of gas channel 121, combustion-supporting air chamber 122 sets up on the combustion head 12 body and is located the below of gas channel 121, dust filter sets up in the gas air chamber, the lower extreme opening of combustion-supporting air chamber 122 just is provided with the even flow device that makes things convenient for combustion-supporting air to pass through, utilizes dust filter can effectual filtration dust, avoids drawing new particulate matter out, simultaneously, utilizes even flow device can make combustion-supporting air more even outflow, and the stability of the incomplete combustion of gas is higher like this, state when avoiding burning is undulant.
In this embodiment, the dust filtering device and the uniform flow device are the same uniform flow device for filtering, the uniform flow device for filtering comprises at least one sintering annular plate 123, the sintering annular plate 123 is fixed on the inner wall of the outlet at the lower end of the combustion air chamber 122, the gas nozzle 14 is connected with the center hole of the sintering annular plate through a connecting sleeve 127, so that dust in combustion air can be filtered through the sintering annular plate 123, meanwhile, the sintering annular plate 123 is formed through a sintering process, the sintering annular plate 123 has a plurality of micropores, the micropores can facilitate the passage of combustion air, and the combustion air is uniformly flowed, so that the dust filtering device and the uniform flow device are functionally combined, the structure is simpler, and the reliability is higher. Further preferably, the number of the sintering ring plates 123 is two, a stepped mounting opening is formed in an outlet at the lower end of the combustion-supporting air chamber 122, the two sintering ring plates 123 are mounted in the stepped mounting opening, a backing ring 124 is arranged between the two sintering ring plates 123, and two locking snap rings 126 for compressing the sintering ring plates 123 below are arranged on the inner wall of the outlet at the lower end of the combustion-supporting air chamber 122;
the connecting sleeve 127 comprises a sleeve body clamped into the centers of the two sintered annular plates 123, the upper end of the sleeve body is provided with a positioning flange, and the lower end of the sleeve body is clamped with a central snap ring 128. The connecting sleeve 127 can facilitate the supporting and fixing of the gas nozzle 14.
The upper mouth of upper seat 151 is provided with the sealed step 1513 of upwards protruding stretching, the periphery of sealed step 1513 is provided with direction chamfer 1514, the lower extreme of combustion head 12 body is provided with sealing washer 125, the lower extreme opening suit of combustion head 12 body is in on the sealed step 1513 and the extrusion sealing washer 125 is sealed the cooperation. Through the structure, the alignment between the upper seat 151 and the combustion head 12 body can be better facilitated, the guide chamfer 1514 facilitates the guide, and the reliable sealing between the combustion head 12 body and the upper seat 151 can be realized.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.
Claims (7)
1. A burning dust generating device is characterized in that: the dust removal device comprises a box body, wherein a combustion chamber is fixed on the box body, the upper end of the combustion chamber is opened, a combustion head driven by a lifting power device is vertically and slidably mounted on the box body, the combustion head is driven by the lifting power device to be in sealing fit with the upper end opening of the combustion chamber, a gas nozzle and a combustion-supporting air chamber are arranged on the combustion head, an outlet of the combustion-supporting air chamber surrounds the gas nozzle, a dust filtering device is arranged in the combustion-supporting air chamber, the gas nozzle is communicated with one end of a gas inlet joint, the combustion-supporting air chamber is communicated with one end of a combustion-supporting air inlet joint, the other end of the gas inlet joint is communicated with a gas quantitative supply system, the other end of the combustion-supporting air inlet joint is communicated with a compressed air quantitative supply system, a dust outlet and a blowing opening are formed in the bottom of the combustion chamber, the blowing opening is positioned in the box body and is communicated with a quantitative blowing pipeline, and the dust outlet is communicated with a dust outlet pipeline with a dust concentration measuring instrument; the gas quantitative supply system comprises a gas storage bottle and a gas flowmeter, an outlet of the gas storage bottle is communicated with an inlet of the gas flowmeter, a gas path adapter is fixed outside the box body, a first gas inlet connector and a first gas outlet connector, a second gas inlet connector and a second gas outlet connector, a third gas inlet connector and a third gas outlet connector, a fourth gas inlet connector and a fourth gas outlet connector which are communicated in a one-to-one correspondence mode are arranged on the gas path adapter, the first gas inlet connector, the second gas inlet connector, the third gas inlet connector and the fourth gas inlet connector are located inside the box body, and the first gas outlet connector, the second gas outlet connector, the third gas outlet connector and the fourth gas outlet connector are located outside the box body; the outlet of the gas flowmeter is communicated with a first gas inlet joint, and the first gas outlet joint is communicated with a gas inlet joint through a pipeline;
the compressed air quantitative supply system comprises a compressed air fan for providing air power, an air outlet of the compressed air fan is communicated with an inlet end of a four-way joint fixed on a box body, a first outlet end and a second outlet end of the four-way joint are respectively communicated with an inlet of a first air flow meter and an inlet of a second air flow meter, the first air flow meter and the second air flow meter are fixed outside the box body, the first air flow meter and a blowing port are communicated to form the quantitative blowing pipeline, an outlet of the second air flow meter is communicated with a second air inlet joint, a second air outlet joint is communicated with a combustion air inlet joint through a pipeline, the lifting power device is a lifting cylinder, a control valve for controlling the lifting cylinder to act is fixed on the box body, an air inlet control port, a first air outlet control port and a second air outlet control port are arranged on the control valve, a third outlet end of the four-way joint is communicated with an air inlet control port of the control valve through a pipeline, the first air outlet control port and the second air outlet control port are respectively communicated with a third air inlet joint and a fourth air inlet joint of a switching seat, and two air nozzles on the lifting cylinder are respectively communicated with an air inlet control port of a gas circuit; the combustion chamber comprises an upper seat and a lower seat, the upper seat and the lower seat are connected through a connecting rod, a quartz tube assembly is installed between the upper seat and the lower seat, a combustion chamber is formed inside the quartz tube assembly, a sweeping chamber communicated with the combustion chamber is arranged on the lower seat, a dust outlet and a sweeping port are both arranged on the lower seat, the sweeping port is connected with a sweeping joint, and the dust outlet is communicated with a dust outlet joint outside the box body through a pipeline;
an upper guide fixing cylinder is fixed on the upper seat and fixedly connected with the upper end of the quartz tube assembly, a closed guide cavity is arranged on the upper guide fixing cylinder, and the guide cavity is matched with an outlet of the combustion-supporting air cavity.
2. A combustion dusting apparatus as claimed in claim 1, wherein: the quartz tube assembly comprises an outer quartz tube and an inner quartz tube, the lower ends of the outer quartz tube and the inner quartz tube are connected in a positioning mode through a lower connecting seat, the lower connecting seat comprises a lower positioning ring protruding upwards, the inner quartz tube is inserted into the lower positioning ring, a lower communicating hole which is communicated with the inner quartz tube and is used for purging the cavity is formed in the lower positioning ring, the outer quartz tube is sleeved outside the lower positioning ring, a lower mounting step opening is formed in the lower seat, the lower connecting seat is mounted in the lower mounting step opening and supported by a step, the outer wall of the outer quartz tube is in positioning contact with the vertical surface of the lower mounting step opening, a lower fixing ring plate is sleeved outside the outer quartz tube, a lower sealing element is arranged in the lower mounting step opening and fixed on the lower seat, the lower end opening of an upper guide fixing cylinder is sleeved outside the inner quartz tube, a positioning outer edge is arranged at the upper end of the upper guide fixing cylinder, the upper end of the outer quartz tube is in positioning cooperation with the positioning outer edge, an upper mounting step opening is arranged on the upper seat, the upper guide fixing cylinder is inserted into the upper end of the upper guide fixing cylinder, the upper fixing cylinder is connected with the outer fixing step opening, and the upper fixing ring plate is sleeved inside the outer fixing step opening, and the outer fixing plate, and the upper end of the outer fixing tube is connected with the outer fixing step opening, and the outer fixing plate, and the upper fixing sealing element are connected with the outer fixing sealing element, and the upper sealing element, and the outer fixing sealing element are arranged on the outer fixing tube.
3. A combustion dusting apparatus as claimed in claim 2, wherein: the burner includes the burner body, be provided with the gas passageway on the burner body, the inlet end of gas passageway can be dismantled and is connected with the gas air inlet connection, the gas nozzle vertical insert the burner this internal and with the end intercommunication of giving vent to anger of gas passageway, combustion-supporting air chamber sets up on the burner body and is located the below of gas passageway, dust filter equipment sets up in the gas air chamber, combustion-supporting air chamber's lower extreme opening just is provided with the even device that makes things convenient for combustion-supporting air to pass through.
4. A combustion dusting apparatus as claimed in claim 3, wherein: the dust filtering device and the uniform flow device are the same filtering uniform flow device, the filtering uniform flow device comprises at least one sintering annular plate, the sintering annular plate is fixed on the inner wall of an outlet at the lower end of a combustion-supporting air chamber, and the gas nozzle is connected with a center hole of the sintering annular plate through a connecting sleeve.
5. A combustion dusting apparatus as claimed in claim 4, wherein: the quantity of the sintering annular plates is two, a step mounting opening is formed in the lower end outlet of the combustion-supporting air chamber, two sintering annular plates are mounted in the step mounting opening, a backing ring is arranged between the two sintering annular plates, and a locking clamping ring for compressing the sintering annular plates below is arranged on the inner wall of the lower end outlet of the combustion-supporting air chamber.
6. A combustion dusting apparatus as claimed in claim 5, wherein: the connecting sleeve comprises two sleeve bodies clamped into the centers of the sintering annular plates, a positioning flange is arranged at the upper end of each sleeve body, and a central clamping ring is clamped at the lower end of each sleeve body.
7. A combustion dusting apparatus as claimed in claim 6, wherein: the upper port of the upper seat is provided with a sealing step protruding upwards, the periphery of the sealing step is provided with a guide chamfer, the lower end of the combustion head body is provided with a sealing ring, and the opening at the lower end of the combustion head body is sleeved on the sealing step and extrudes the sealing ring to be in sealing fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211188675.4A CN115266281B (en) | 2022-09-28 | 2022-09-28 | Burning dust generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211188675.4A CN115266281B (en) | 2022-09-28 | 2022-09-28 | Burning dust generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115266281A CN115266281A (en) | 2022-11-01 |
| CN115266281B true CN115266281B (en) | 2022-12-16 |
Family
ID=83756295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211188675.4A Active CN115266281B (en) | 2022-09-28 | 2022-09-28 | Burning dust generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115266281B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB619036A (en) * | 1944-10-09 | 1949-03-02 | Bendix Aviat Corp | Improvements in or relating to combustion gas generators for gas turbines and like power plants |
| GB1521308A (en) * | 1975-12-09 | 1978-08-16 | Consultant Gas Eng Ltd | Fuel burners |
| CN104266188B (en) * | 2014-10-16 | 2016-07-06 | 陈维汉 | Gas oxygen-enriched combustion-supporting premixed swirl combustion device |
| CN106122954B (en) * | 2016-06-30 | 2018-03-20 | 南通业顺机械制造有限公司 | A kind of high-precision buner system |
| CN107238663B (en) * | 2017-05-04 | 2023-11-24 | 北京博赛德科技有限公司 | System and method for detecting residual components after combustion by using large-volume headspace sampler |
| CN110687244B (en) * | 2019-08-29 | 2022-04-05 | 中国科学院广州能源研究所 | Aeroengine fuel combustion characteristic experiment detection system |
-
2022
- 2022-09-28 CN CN202211188675.4A patent/CN115266281B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115266281A (en) | 2022-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115290570B (en) | Auxiliary calibration device and auxiliary calibration method for automobile exhaust detection system | |
| KR101256546B1 (en) | Particulate Matter Measuring Apparatus Comprising Rotating Changing Type Filter Cartridge | |
| CN203894139U (en) | Cooking fume particle testing device of extractor hood | |
| CN111122407A (en) | Testing device and testing method for measuring filtering efficiency of air filtering material | |
| CN115266281B (en) | Burning dust generating device | |
| CA1219531A (en) | Downflow air filter construction and methods for air flow adjustment and leak testing thereof | |
| CN107036665B (en) | A kind of experimental rig and method measuring burner inner liner air inlet discharge coefficient | |
| CN108562440A (en) | The combustor test device and its test method of air mass flow zonal control | |
| CN109239282A (en) | Coal mine dust, methane, the simulation of humidity environment ball-type and control device and method | |
| CN109357928A (en) | The calibrating installation and its method of aerosol diluter thinner ratio | |
| CN209296533U (en) | A kind of test device measuring air filtrate filter efficiency | |
| CN107576601A (en) | Suitable for the particulate matter on-line checking and analysis meter in urban track traffic place | |
| CN116818623A (en) | Urban particulate matter detection system and detection method based on hyperspectral technology | |
| CN2581986Y (en) | Sample burner for analyzing organic element content | |
| CN108444738B (en) | Method for rapidly evaluating accumulated purification amount of filter material particles | |
| CN207123472U (en) | Suitable for the particulate matter on-line checking and analysis meter in urban track traffic place | |
| CN101441145B (en) | Dynamic detection wind tunnel of air line type stepless speed regulating aerosol | |
| CN213600659U (en) | Gas measuring instrument calibrating device and gas buffer tank thereof | |
| CN112710786A (en) | Online gas monitoring device of unmanned aerial vehicle | |
| CN208922607U (en) | A kind of temperature adjustment speed regulation gas emission transaction device | |
| CN112229456A (en) | Multifunctional airflow distribution standard component | |
| CN207463749U (en) | A kind of unperturbed back-blowing device | |
| CN214972454U (en) | Air filtering system | |
| CN207221527U (en) | A kind of external particulate filter | |
| CN110441202A (en) | A kind of calibration system and its calibration method of aerodynamic size spectrometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |