CN217843850U - Black cigarette constant value mechanism and black cigarette generating device - Google Patents

Abstract

The utility model belongs to the technical field of tail gas detection, a black cigarette valuing mechanism and black cigarette generating device is disclosed. Black smoke definite value mechanism includes: the device comprises a constant value shell, a transparent baffle, a light source and a detection assembly. The transparent baffle is arranged in the constant value shell to divide the constant value shell into an air containing cavity and a constant value cavity which are not communicated with each other, and the air containing cavity is used for storing black smoke; the light source is arranged in the constant value cavity and used for irradiating light rays into the air containing cavity. The detection component is arranged in the constant value shell and used for detecting the light intensity of black smoke passing through the air cavity. The black value of the black smoke in the air containing cavity can be determined according to the detected light intensity change through the black smoke value determining mechanism. Therefore, black smoke with a specified blackness value can be sprayed out when the Lingemann blackness detection equipment is calibrated, so that the calibration precision of the Lingemann blackness detection equipment is improved, and the accuracy and reliability of the Lingemann blackness detection equipment are ensured.

Description

Black cigarette constant value mechanism and black cigarette generating device

Technical Field

The utility model relates to a tail gas detection's technical field especially relates to a black cigarette definite value mechanism and black cigarette generating device.

Background

Black smoke generally refers to the visible aerosol produced by a fuel after combustion, and is the product of incomplete combustion of the fuel. It contains a variety of impurities. The tail gas discharged by the fuel oil automobile belongs to black smoke. While the detection of black smoke is generally performed by a lingemann blackness detection device (such as an electronic snapshot system of a black smoke car and a handheld lingemann blackness detection device), the lingemann blackness detection device needs to be measured and calibrated in advance when in use, so as to ensure that the measurement value is accurate and reliable.

In the prior art, the measurement and calibration of the ringelman blackness detection device are mainly implemented by detecting a standard blackness plate by the ringelman blackness detection device, comparing an actual measurement indication value with a ringelman blackness standard value of the standard blackness plate, and completing the measurement and calibration of the ringelman blackness detection device by calculating an indication value error.

However, in the above process, the standard blackness plate is provided with the black line gridding pattern, which cannot simulate the state of black smoke diffusion, the lingermann blackness detection device can capture the pattern on the standard blackness plate to analyze the image during calibration, the area of the black line can be easily identified in the analysis process to calculate the blackness value, but the blackness identification of the whole image is not performed, so that the final calibration result is easy to generate large deviation, and the normal use of the instrument is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a black cigarette definite value mechanism and black cigarette generate device has solved among the prior art and can not take a candid photograph true black cigarette when the calibration, and leads to the problem that great deviation appears easily to the precision of instrument calibration.

To achieve the purpose, the utility model adopts the following technical proposal:

a black smoke threshold mechanism, comprising: the device comprises a fixed value shell, a transparent baffle, a light source and a fixed value assembly. The transparent baffle is arranged in the constant value shell to divide the constant value shell into an air containing cavity and a constant value cavity which are not communicated with each other, and the air containing cavity is used for storing black smoke; the light source is arranged in the constant value cavity and used for irradiating light rays into the air containing cavity. The fixed value assembly is arranged in the fixed value shell and used for detecting the light intensity of black smoke passing through the air containing cavity.

Optionally, the valuing component comprises: the reflecting plate is arranged on the fixed value shell and is opposite to the transparent baffle, and the air containing cavity is positioned above the reflecting plate; and the light receiver is arranged in the constant value cavity and is used for receiving the light which passes through the air containing cavity and is reflected by the reflecting plate so as to output corresponding light intensity.

Through above-mentioned technical scheme, when light passed the appearance air cavity, the particulate matter that contains in the black cigarette of appearance air cavity can absorb light, and its light intensity will weaken, after the reflecting plate reflection, is received and output corresponding light intensity by light receiver again, confirms the blackness value in the appearance air cavity according to the degree of weakening of light intensity.

Optionally, the light source is an LED lamp; and/or the transparent baffle is a transparent glass sheet; and/or the reflecting plate is a piece of opaque white paper.

Through above-mentioned technical scheme, the LED lamp can produce the light of steady intensity, is convenient for shine black cigarette. The transparent glass sheet has good light transmission, has small interference to light, and can fully isolate the air containing cavity. The light-tight white paper sheet has good light reflection performance, and can reflect light to the maximum extent.

The utility model also provides a black cigarette generating device, it includes as above-mentioned arbitrary black cigarette definite value mechanism.

Optionally, the black smoke generating device further comprises: the combustion assembly is used for combusting the oil to generate black smoke; the air distribution assembly is communicated with the combustion assembly and is used for storing and ejecting the black smoke; the combustion assembly and the air distribution assembly are in communication connection with the black smoke constant value mechanism, and the black smoke constant value mechanism is used for detecting the blackness value of black smoke in the air distribution assembly and controlling the running state of the combustion assembly.

Through above-mentioned technical scheme, utilize combustion module to generate black cigarette, and save black cigarette in distribution module, detect the blackness value of black cigarette in the distribution module through black cigarette fixed value mechanism, thereby confirm whether black cigarette satisfies the needs of calibration operation, when black cigarette satisfies the requirement of calibration operation, just can utilize distribution module blowout black cigarette, the diffusion of simulation automobile exhaust, and when black cigarette does not satisfy the calibration operation requirement, just control combustion module and continue to operate or the shutdown, with the blackness value of the black cigarette in the adjustment distribution module.

Optionally, the combustion assembly comprises: an oil tank; the combustion chamber is communicated with the oil tank through a first regulating valve, and the first regulating valve is in communication connection with the black smoke constant value mechanism and is used for controlling the flow of oil liquid; the spark plug is arranged in the combustion chamber and used for igniting oil; and the two ends of the air duct are respectively communicated with the combustion chamber and the air distribution assembly so as to guide the black smoke into the air distribution assembly.

Through above-mentioned technical scheme, when producing black cigarette, just through first governing valve intercommunication oil tank and combustion chamber, fluid will flow in the combustion chamber, utilizes the spark plug to ignite fluid for fluid burns in the oil tank and produces black cigarette, and black cigarette accomplishes the storage in getting into the distribution subassembly through the air duct. And along with the detection of the black smoke in the air distribution assembly by the black smoke constant value mechanism, when the blackness value does not meet the requirement, the first regulating valve can be controlled to be further opened or closed so as to regulate the black smoke generated in the combustion chamber, thereby regulating the blackness value of the black smoke in the air distribution assembly.

Optionally, a heat insulation layer is annularly arranged outside the combustion chamber; and/or a cooling layer is arranged outside the combustion chamber in an annular mode, a cooling cavity for containing cooling liquid is formed in the cooling layer, and a cooling liquid inlet and a cooling liquid outlet which are communicated with the cooling cavity are formed in the cooling layer.

Through above-mentioned technical scheme, the insulating layer can weaken the outside efficiency of transmitting of heat. And after the combustion is finished, the cooling liquid can be simultaneously used through the cooling liquid inlet and the cooling liquid outlet, so that the cooling liquid continuously flows in the cooling layer, and the cooling of the combustion chamber is quickly finished.

Optionally, the black smoke generating device comprises: the cooler is arranged on the air guide pipe and used for cooling the black smoke passing through the air guide pipe; and/or the filter screen is arranged in the air duct to filter the black smoke passing through the air duct; and/or the second regulating valve is arranged in the air duct and is in communication connection with the black smoke constant value mechanism so as to regulate the opening and closing amplitude of the air duct according to the blackness value.

Through above-mentioned technical scheme, when black cigarette was transported in the air duct, the cooler can cool off black cigarette fast to reduce the temperature of black cigarette, thereby reduce the volume of black cigarette, so that can save a large amount of black cigarettes in the distribution unit. The filter screen can filter impurities such as fluid that black cigarette carried, avoids appearing the accumulational phenomenon of fluid in the gas distribution unit. The second governing valve then can control the transmission efficiency of black cigarette, through the real-time detection to the blackness value, just can control opening and shutting of second governing valve to the rate that control black cigarette got into in the distribution subassembly, also can corresponding adjustment black cigarette's blackness value.

Optionally, the air distribution assembly includes: a housing; the gas distribution box is arranged in the shell and is internally provided with a gas distribution cavity which is respectively communicated with the gas guide pipe and the gas containing cavity of the black smoke constant value mechanism; the exhaust plate is connected in the air distribution cavity in a sliding mode and used for pushing the black smoke to flow; and the black smoke nozzle is communicated with the air distribution cavity to spray the black smoke.

Through above-mentioned technical scheme, the air duct is with the leading-in storage in the gas distribution chamber of black cigarette, can real-time detection gas distribution intracavity black cigarette's blackness value through black cigarette definite value mechanism, when the blackness value satisfies the calibration requirement, slides through the air discharge plate and promotes black cigarette and spout through black cigarette nozzle to simulation automobile exhaust diffusion.

Optionally, the black smoke generating device further comprises: the black smoke value setting mechanism is in communication connection with the third throttle valve and is used for controlling the third throttle valve to be selectively opened and closed; and/or a thermal barrier layer disposed on an outer sidewall of the housing; and/or the gas distribution box is formed by using a light-tight plate.

Through the technical scheme, when the blackness value is not in accordance with the requirement, the black smoke constant value mechanism can also control the third throttle valve to be opened, so that air enters the air distribution cavity, the black smoke is partially discharged out of the air distribution cavity, and the blackness value of the black smoke is adjusted. The heat resistance layer can further reduce the possibility of heat change in the air distribution cavity, reduce the influence of the ambient temperature on black smoke and maintain the constant temperature in the air distribution cavity. The distribution box adopts the light-tight board to constitute, can avoid the light in the black cigarette definite value mechanism to shine distribution intracavity black cigarette to avoid causing the interference to black cigarette detection.

The utility model has the advantages that:

1. when carrying out the definite value to black cigarette, utilize black cigarette can produce the absorption and weaken the principle of light intensity to the light that passes, shine light to the black cigarette that holds the gas cavity through the light source, light is after passing transparent baffle, pass the black cigarette that holds the gas cavity again, light intensity will change, definite value subassembly detects this light intensity's change back, and the original intensity of the light that the light source produced can keep unchangeable, consequently, the definite value subassembly can be based on the light intensity change that detects and confirm the blackness value of holding the black cigarette of gas cavity. Therefore, black smoke with a specified blackness value can be sprayed out when the Lingemann blackness detection equipment is calibrated, so that the calibration precision of the Lingemann blackness detection equipment is improved, and the accuracy and reliability of the Lingemann blackness detection equipment are ensured.

2. In the black smoke generating process, the blackness value of the black smoke is detected in real time through the black smoke constant value mechanism, when the blackness value meets the calibration requirement, the black smoke is sprayed out to simulate the diffusion of automobile exhaust, the Lingemann blackness detection equipment can detect the sprayed black smoke, the calibration of the Lingemann blackness detection equipment can be completed by comparing the detection result with the Lingemann blackness standard value given by the black smoke constant value, the calibration precision of instrument calibration is improved, and the normal use of the Lingemann blackness detection equipment is ensured.

Drawings

Fig. 1 is a schematic structural view of a black smoke threshold mechanism according to some embodiments of the present invention.

Fig. 2 is a schematic structural view of a black smoke generating device according to some embodiments of the present invention.

Fig. 3 is a schematic structural view of an operation panel of a black smoke generating device according to some embodiments of the present invention.

In the figure:

100. a constant value shell; 101. a socket; 110. a constant value cavity; 120. a gas containing cavity; 200. a transparent baffle; 300. a light source; 400. a fixed value component; 410. a reflective plate; 420. an optical receiver; 500. a combustion assembly; 510. an oil tank; 511. an oil inlet; 512. an oil quantity indicator; 513. a liquid level meter; 514. an oil outlet pipe; 515. an oil jet; 520. a combustion chamber; 521. a sewage draining hole; 522. a thermal insulation layer; 523. a cooling chamber; 524. a coolant inlet; 525. a coolant outlet; 530. a spark plug; 540. an air duct; 541. a cooler; 542. a filter screen; 543. a second regulating valve; 550. a first regulating valve; 600. a gas distribution assembly; 610. a housing; 620. a gas distribution box; 621. a gas distribution cavity; 622. a flow-through tube; 623. an air inlet pipe; 624. an exhaust pipe; 625. a third throttle valve; 630. an exhaust plate; 631. a telescopic rod; 640. a black smoke nozzle; 650. a gas ejector tube; 660. a thermal barrier layer; 700. an operation panel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Ringelmann blackness is a method for evaluating the blackness of smoke by a visual method, and is divided into 0-5 grades in total, wherein 5 grades are the most serious pollution. The method can be used for monitoring the exhaust gas of a factory or an automobile and used for judging whether the exhaust gas or the exhaust gas exceeds the standard or not. Particularly, along with the gradual improvement of environmental governance standards, the emission supervision of the tail gas of the motor vehicle is also gradually intelligentized. At present, the lingemann blackness measuring device is used for monitoring tail gas, and the device is handheld and also fixed (such as an electronic snapshot system of a black smoke vehicle and handheld lingemann blackness detection equipment). The method is mainly characterized in that whether the blackness of the tail gas exceeds 1 level or not is judged, and the excessive blackness can be considered as exceeding the standard if the blackness exceeds 1 level. Before the measuring device is used, special metering calibration is required to ensure that the measuring result of the measuring device is accurate and reliable.

In the prior art, the calibration of the device is mainly completed by using a standard ringer Mannheim plate. The standard ringer Mannheim plate is formed by drawing a gridded image through black lines. The measuring device identifies the whole black degree of the blackness plate by shooting the image, obtains a Ringelmann blackness measuring value of the blackness plate after algorithm processing, and then finishes calibration by comparing the measured blackness value with a standard blackness value. In the process, partial manufacturers take cheating behaviors, the areas of the black lines of the blackness plates are simply identified, the corresponding Ringelmann blackness is directly calculated, the blackness of the blackness plates is not calculated through the integral blackness of the image identification blackness plates, and the actual calibration program is different from the monitoring program of normally snapshotting black smoke, so that calibration failure is caused. Even if a standard ringer Mannheim plate is used, the method cannot simulate the dynamic diffusion process of tail gas, the snapshot capability of the measuring device on dynamic black smoke cannot be evaluated, the snapshot capability also has great influence on the measurement result, and therefore the accuracy of the calibration method is low.

And the utility model provides a black cigarette definite value mechanism and black cigarette generate device. The fixed value means that a certain action will occur when a certain physical quantity reaches a certain value in the automatic control system. The utility model discloses in, this physical quantity is light intensity, and a certain numerical value indicates the strong and weak judgement standard to light intensity, and the action then indicates the operation or the stop of each structure in the black cigarette generation device.

Example one

Fig. 1 is a schematic structural view of a black smoke setting mechanism according to some embodiments of the present invention. Referring to fig. 1, the black smoke threshold value setting mechanism includes: valuing shell 100, transparent baffle 200, light source 300 and valuing subassembly 400. The transparent baffle 200 is arranged in the constant value shell 100, and the transparent baffle 200 divides the constant value shell 100 into two cavities which are not communicated with each other, wherein one cavity is the constant value cavity 110, the other cavity is the air containing cavity 120, and the air containing cavity 120 is used for storing black smoke. The light source 300 is arranged in the air containing cavity 110 to irradiate light into the air containing cavity 120, and the valuables assembly 400 is arranged in the valuables shell 100 to detect the light intensity of black smoke passing through the air containing cavity 120.

Specifically, the entire dosing housing 100 may have a long bar shape and be disposed in a vertical direction. The cross section of the device can be circular, square or other polygons. The transparent barrier 200 is fixed inside the valuables case 100 at the middle position of the valuables case 100, and the air containing cavity 120 is located under the transparent barrier 200. And the fixing mode of the specific transparent baffle 200 can be bonding, welding or other connection modes capable of keeping the fixed value cavity 110 and the air containing cavity 120 sealed, and the utility model discloses do not do it specifically to limit.

The air-containing cavity 120 communicates with a corresponding black smoke generating device to store black smoke used to calibrate the ringelman blackness detection apparatus within the black smoke generating device. The light source 300 is fixed on the inner top wall of the fixed value chamber 110, and the transparent baffle 200 is positioned right below the light source 300. It should be understood that the fixed value housing 100 may also be disposed along other directions, such as horizontally, in which case the air containing cavity 120 and the fixed value cavity 110 are distributed along the left-right direction. The utility model discloses do not do the injecing to the specific installation direction of definite value shell 100.

Before the Lingemann blackness detection equipment is calibrated, the black smoke is detected by the black smoke constant value mechanism to generate the black smoke required by the calibration operation. When detecting, utilize black cigarette can produce the suction to the light that passes and weaken the principle of light intensity, open light source 300 and shine light to the appearance air cavity 120 in, after light passed the black cigarette in the appearance air cavity 120, its intensity weakens, behind the change of definite value subassembly 400 detection light intensity, calculate the blackness value that corresponds black cigarette according to light intensity change, just can confirm whether the black cigarette satisfies the requirement of calibration operation according to the blackness value, when unsatisfying the requirement, in time adjust the black cigarette in order to satisfy the calibration requirement. When the black cigarette is used for calibration, the calibration precision can be effectively improved, and the normal use of the Ringelmann blackness detection equipment is ensured.

Referring to fig. 1, in some embodiments of the present invention, the constant value component 400 includes: a reflective plate 410 and an optical receiver 420. The reflective plate 410 is disposed on the dosing housing 100, and is disposed opposite to the transparent barrier 200. The air-containing chamber 120 is located above the reflection plate 410. The light receiver 420 is disposed in the fixed cavity 110 for receiving the light passing through the air-containing cavity 120 and reflected by the reflective plate 410 to output a corresponding light intensity.

Specifically, the bottom wall of the fixed value casing 100 is provided with an insertion opening 101, the reflection plate 410 is inserted into the insertion opening 101, the side wall and the top wall of the fixed value casing 100 are made of opaque metal, such as ferrous metal, and the bottom wall is made of a material with high light transmittance. The light generated by the light source 300 passes through the transparent baffle 200, the air containing cavity 120 and the bottom wall of the fixed value casing 100 and irradiates the reflective plate 410, and the reflective plate 410 can reflect the corresponding light. The light receiver 420 is disposed in the fixed value chamber 110, and the light receiver 420 may be a light sensor, which may be disposed near the light source 300.

In the initial state, the light receiver 420 can simultaneously receive the intensity of the light generated by the light source 300 and the intensity of the light reflected by the reflective plate 410 when the air exists in the air containing cavity 120, and the intensity of the light output by the light receiver 420 is set to the initial value. The initial value can be transmitted to a corresponding controller, and the controller converts the initial value into a blackness value according to a set program, wherein the blackness value is 0. The controller can be formed by a PLC module and the like, a corresponding control program is arranged in the controller, and the controller can operate according to the program to control the corresponding mechanism to act after the initial value is obtained. The specific control procedures are all the prior art and are not described herein again.

When the black smoke in the air containing cavity 120 is the most dense, the intensity of the reflected light of the reflecting plate 410 received by the light receiver 420 is weakened, the light intensity is transmitted to the controller, and the controller can convert the light intensity into the light intensity after calculatingThe black level is converted to a black level, which is 5. The specific calculation method may be: setting the initial value to P ₀ When black smoke exists in the air cavity 120, the intensity of the light received by the light receiver 420 is P, and the blackness value = (1-P/P) ₀ )×5。

In some embodiments of the present invention, the light source 300 is an LED lamp. The transparent barrier 200 is a transparent glass sheet. The reflective plate 410 is an opaque white plate. Specifically, the light source 300 employs an LED lamp to form a stable light intensity. The transparent glass sheet has good light transmittance, and light can smoothly pass through the air accommodating cavity 120. The transparent glass plate has good air tightness, the constant value cavity 110 and the air containing cavity 120 can be well isolated, and the transparent glass plate can be a transparent sapphire glass plate and is low in reflectivity. The light-proof white board has good reflectivity, and can reflect the light irradiated on the light-proof white board to the maximum extent. It should be understood that the light source 300 may be of other types, such as incandescent lamp, etc., the transparent barrier 200 may be of other structures with high light transmittance and good sealing performance, and the reflective plate 410 may be of a structure with high light reflection performance, and is not limited to the opaque white board.

This black smoke generating device includes: the black smoke setting mechanism in any of the above embodiments.

Specifically, the black smoke of the black smoke generating device can be synchronously transmitted to the black smoke constant value mechanism. When utilizing this black cigarette generating device to generate black cigarette, through the blackness value of black cigarette fixed value mechanism real-time detection, when the blackness value accords with the calibration requirement, with the diffusion of black cigarette blowout simulation automobile exhaust, linggeman blackness check out test set just can detect spun black cigarette, can accomplish the calibration to linggeman blackness check out test set with this testing result and actual testing result contrast, improve the calibration precision to the instrument calibration with this, ensure the normal use of linggeman blackness check out test set.

The black smoke generating device comprises all technical characteristics of the black smoke constant value mechanism, so that the black smoke generating device has all technical effects of the black smoke constant value mechanism, and is not described again.

Fig. 2 is a schematic structural view of a black smoke generating device according to some embodiments of the present invention. Referring to fig. 2, in some embodiments of the present invention, the black smoke generating apparatus further comprises a combustion assembly 500 and an air distribution assembly 600. The combustion assembly 500 is used to combust oil to generate black smoke. The air distribution assembly 600 communicates with the combustion assembly 500 for storing and ejecting black smoke. The black smoke setting mechanism is connected with the combustion assembly 500 and the air distribution assembly 600 respectively, and is used for detecting black smoke in the air distribution assembly 600 to generate a corresponding black value, and regulating and controlling the operation state of the combustion assembly 500 according to the black value.

Specifically, corresponding oil cavity and combustion chamber can be set up in combustion assembly 500, communicate through control valves such as solenoid valve between the two, control the fluid volume that gets into in the combustion chamber through the control valve to control the degree of burning, thereby adjust produced black cigarette, control valve and black cigarette definite value mechanism all are connected with the controller communication. The controller acquires and controls the data of the control valve and the black smoke constant value mechanism, which are implemented by programs in the prior art, and are not described herein again. And air distribution assembly 600 can set up below or the top in the combustion chamber, and the black cigarette that produces can get into air distribution assembly 600 gradually automatically. The air distribution assembly 600 is communicated with the black smoke constant value mechanism, and the black smoke entering the air distribution assembly 600 can also enter the air containing cavity 120 of the black smoke constant value mechanism so as to ensure the accuracy of the detection result.

When carrying out black cigarette and generating, fluid burns and produces black cigarette in the combustion assembly 500, and black cigarette can save gradually in distribution assembly 600, and black cigarette definite value mechanism can detect the blackness value of the black cigarette in distribution assembly 600, and when the blackness value accords with the calibration requirement, just can utilize distribution assembly 600 blowout black cigarette to the diffusion of simulation automobile exhaust accomplishes the calibration to linggemann blackness check out test set.

In some embodiments of the present invention, the combustion assembly 500 includes an oil tank 510, a combustion chamber 520, a spark plug 530, and an airway 540. The oil tank 510 is used to store oil. The combustion chamber 520 communicates with the oil tank 510 through the first regulator valve 550. The first regulating valve 550 is in communication connection with the soot rating mechanism to control the flow of oil according to the soot value. A spark plug 530 is disposed within the combustion chamber 520 for igniting the oil. The two ends of the air duct 540 are respectively communicated with the combustion chamber 520 and the air distribution assembly 600 to guide the black smoke into the air distribution assembly 600.

Specifically, the oil tank 510 may be rectangular, and a top wall thereof is provided with an oil inlet 511 and an oil indicator 512, respectively, and a liquid level meter 513 may be disposed therein. The diapire of oil tank 510 sets up out oil pipe 514, and first governing valve 550 just sets up on oil pipe 514, and the bottom of going out oil pipe 514 can pass the roof of combustion chamber 520 and stretch into in the combustion chamber 520, and the bottom of going out oil pipe 514 can also set up oil sprayer 515 in order to spray fluid, and oil sprayer 515 can adopt vaporific nozzle, also can adopt other type nozzles, the utility model discloses do not specifically limit. Spark plug 530 is fixed to the inside wall of combustion chamber 520 and is located below fuel injector 515. An air inlet tube 526 is provided on the top wall of the combustion chamber 520 for the inflow of air. The bottom wall of the combustion chamber 520 is provided with a sewage discharge hole 521 for discharging oil stains.

The top end of the air duct 540 passes through the bottom wall of the combustion chamber 520, and the air duct 540 and the oil outlet pipe 514 are arranged in a staggered manner, and can be staggered back and forth or staggered left and right. A special filtering cover may be further disposed on the air duct 540 to prevent oil from directly entering the air duct. It should be understood that the size and type of the fuel tank 510, the combustion chamber 520, the spark plug 530, etc. may be designed according to the requirement of the required generation of black smoke, and the present invention is not specifically designed. In other embodiments, the oil tank 510 may be disposed in parallel with the combustion chamber 520, and the oil pump is connected between the two to pump oil, so as to precisely control the flow rate of the oil.

When black smoke is generated, the controller opens the first regulating valve 550 to communicate the oil tank 510 with the combustion chamber 520, the oil in the oil tank 510 enters the combustion chamber 520, the oil is ignited by the spark plug 530, so that the oil is combusted in the combustion chamber 520 to generate the black smoke, and the black smoke gradually enters the air distribution assembly 600 through the air duct 540. And impurities such as oil stains generated after the oil is combusted are discharged out of the combustion chamber 520 through the drain hole 521.

In some embodiments of the present invention, the outer ring of the combustion chamber 520 is provided with a thermal insulation layer 522. Specifically, the thermal insulation layer 522 covers the outside of the combustion chamber 520 to reduce the possibility of heat dissipation from the combustion chamber 520, maintain the temperature in the combustion chamber 520, and ensure the oil to be combusted. The material of the thermal insulation layer 522 may be heat insulation, such as asbestos, etc., and the present invention is not limited to the material of the thermal insulation layer 522.

In some embodiments of the present invention, the outer ring of the combustion chamber 520 is provided with a cooling layer, the cooling layer is provided with a cooling cavity 523 for accommodating a cooling fluid, and the cooling layer is provided with a cooling fluid inlet 524 and a cooling fluid outlet 525 which are communicated with the cooling cavity 523.

Specifically, a cooling plate is arranged around the inner side of the thermal insulation layer 522 to serve as a cooling layer, and the cooling plate is hollow to serve as a cooling cavity 523. The cooling fluid outlet 525 and the cooling fluid inlet 524 are each provided with a respective cannula, which may be communicated by a cooling pump, such that the cooling fluid can flow within the cooling chamber 523. The cooling liquid can adopt cold water or other liquid with good heat exchange performance.

After combustion is completed, coolant may be injected into the cooling cavity 523 through the coolant inlet 524, so that the coolant flows around the periphery of the combustion chamber 520, thereby rapidly reducing the temperature in the combustion chamber 520. Meanwhile, the heat insulation layer 522 is arranged on the outer side of the cooling layer, so that the possibility of heat exchange between the external temperature and the cooling liquid can be reduced, and the cooling effect on the combustion chamber 520 is effectively improved.

The utility model discloses some embodiments, black smoke generating device still includes: cooler 541, filter screen 542 and second regulating valve 543. A cooler 541 is provided on the air duct 540 to cool the black smoke passing through the air duct 540. The filter 542 is disposed in the air duct 540 to filter the black smoke passing through the air duct 540. A second control valve 543 is disposed in the air duct 540 and is connected to the black smoke threshold mechanism for controlling the opening and closing of the air duct 540 according to the black level.

Specifically, the cooler 541 is located on one side of the air duct 540 close to the combustion chamber 520, and may be annularly disposed outside the air duct 540, the cooler 541 is generally in a sleeve shape, a coolant in a flow channel may be disposed inside the cooler 541, and the inner sidewall of the cooler may be coated with corresponding heat-conducting glue and other materials, so that the cooler 541 may be fixed on the air duct 540, and the heat exchange efficiency between the black smoke and the cooler 541 may be further improved. It should be understood that the cooler 541 may also be of other structures, such as a cooling pipe that can be bolted to the air duct 540, as long as it can cool the black smoke in the air duct 540, and the present invention is not limited to the specific structure of the cooler 541.

Filter screen 542 sets up the intermediate position department at air duct 540, and its filter fineness can design according to the requirement of black cigarette, mainly filters the fluid molecule of unburnt that carries in the black cigarette, also can filter some other impurity for automobile exhaust is pressed close to more to black cigarette, the utility model discloses do not do the injecing to the concrete type and the filter fineness of filter screen 542.

The second adjusting valve 543 is connected to the controller, and the controller can control the opening and closing of the second adjusting valve 543 to adjust the opening and closing of the air duct 540, so as to control whether the black smoke flows into the air distribution assembly 600, and further adjust the black smoke in the air distribution assembly 600. Meanwhile, the second regulating valve 543 can also have a temperature control function, when the temperature of the black smoke is lower than a certain value, the second regulating valve 543 can be controlled by the controller, and the value can be designed according to actual conditions, in the embodiment of the present invention, when the temperature of the black smoke is lower than 40 ℃, the second regulating valve 543 can be controlled.

In some embodiments of the present invention, the air distribution assembly 600 includes: a housing 610, a distribution box 620, an exhaust plate 630 and a black smoke nozzle 640. The distribution box 620 is located in the middle of the housing 610, and the distribution box 620 may be fixed by a corresponding bracket inside thereof. The bottom end of the air tube 540 extends through the top end of the housing 610 and into the air distribution box 620. The air distribution box 620 is internally provided with an air distribution cavity 621 communicated with the air containing cavity 120 of the black smoke constant value mechanism. The exhaust plate 630 is movably connected in the exhaust cavity, and the exhaust plate 630 is used for pushing the black smoke to flow in the air distribution cavity 621. The black smoke nozzle 640 is disposed below the gas distribution box 620 and communicates with the gas distribution chamber 621.

Specifically, the lower side of the air distribution box 620 is provided with a connection hole into which one end of the air guide tube 540 extending into the housing 610 is inserted. And the exhaust plate 630 is positioned above the connection hole to smoothly guide the black smoke into the air distribution chamber 621. It should be understood that the connection hole may be located at other positions of the gas distribution box 620 as long as it is not higher than the highest position of the exhaust plate 630.

Can set up telescopic link 631 on the air discharge plate 630, the top of telescopic link 631 and the interior roof fixed connection of distribution box 620 promote air discharge plate 630 through telescopic link 631 and slide to promote the black cigarette runner, and telescopic link 631 can adopt loop bar sliding connection, also can adopt loop bar threaded connection isotructure to realize. It should be understood that the telescopic rod 631 may be replaced by an air cylinder fixed to the air distribution box 620, and a piston rod thereof is connected to the exhaust plate 630. The telescopic rod 631 may have other structures, and the present invention does not limit the sliding manner of the exhaust plate 630.

The circulation pipe 622 is provided at the lower side of the gas distribution box 620, and the circulation pipe 622 communicates with the gas containing chamber 120. The gas distribution box 620 is made of a light-tight plate, such as a blackboard, to prevent light rays in the constant value case 100 from irradiating the gas distribution box 620 and interfering with the light receiver 420. In the embodiment of the present invention, the gas distribution box 620 is formed by welding six metal plates made of stainless steel, and the metal plates are not reflective after being blackened.

An air injection pipe 650 is further arranged on the bottom wall of the air distribution box 620, the air injection pipe 650 can extend in the vertical direction and extend out of the shell 610, and the black smoke nozzle 640 is arranged at the bottom end of the air injection pipe 650. The black smoke nozzle 640 may employ a power nozzle so as to control the speed and amount of its ejection. Jet-propelled pipe 650 also can adopt the hose to in the orientation of adjustment black cigarette nozzle 640, of course also can adopt the hard tube, avoid black cigarette nozzle 640 to rock when blowout black cigarette, specifically can design according to the application requirement of reality, the utility model discloses do not restrict.

When the black cigarette in the air distribution cavity 621 satisfies the calibration requirement, just utilize air discharge plate 630 to slide in air distribution cavity 621 to promote black cigarette to flow, in pushing black cigarette nozzle 640 through jet-propelled pipe 650 with black cigarette, thereby black cigarette nozzle 640 spouts black cigarette according to the mode of setting for, with the diffusion process of simulation automobile exhaust, and the detection is taken a candid photograph to the lingemann blackness check out test set of being convenient for.

In some embodiments of the present invention, a heat resistant layer 660 is further included on the black smoke generating device. The thermal barrier 660 is annularly provided on the outer sidewall of the housing 610. Specifically, heat resistance layer 660 covers the surface at the shell 610 physically, and its material can be the same with insulating layer 522, also can be different, the utility model discloses do not do the restriction to heat resistance layer 660's material. The heat resistant layer 660 can reduce heat transfer in the external environment, and prevent the temperature of the black smoke in the distribution cavity 621 from rising to interfere with detection and calibration.

In some embodiments, the black smoke generating device further includes an air inlet pipe 623 and an air outlet pipe 624. The air inlet pipe 623 and the exhaust pipe 624 are both communicated with the air distribution cavity 621, a third throttle valve 625 is arranged on the air inlet pipe 623 and the exhaust pipe 624, and the third throttle valve 625 is in communication connection with the black smoke value determining mechanism so as to be selectively opened and closed according to the black smoke value.

Specifically, two pipelines are arranged on the bottom wall of the gas distribution box 620 as the gas inlet pipe 623 and the gas outlet pipe 624, and the other ends of the two pipelines extend out of the housing 610. An end of the air inlet pipe 623 protruding out of the housing 610 may be connected to a blower to inject air into the distribution chamber 621. The end of the exhaust pipe 624 extending out of the housing 610 may be connected to an air pump to pump black smoke out of the distribution chamber 621. It should be understood that the fan and the air extractor may be connected to only one of them, or both.

When the blackness value of the black smoke in the air distribution cavity 621 exceeds the calibration requirement, the two third throttle valves 625 are opened, air is injected into the air distribution cavity 621 through the air inlet pipe 623, and the black smoke is discharged through the exhaust pipe 624, so that the blackness value of the black smoke is reduced.

Fig. 3 is a schematic structural view of an operation panel of a black smoke generating device according to some embodiments of the present invention. Referring to fig. 3, in some embodiments of the present invention, the controller includes a processor and an operation panel 700, and the operation panel 700 may have an initial blackness, a setting blackness, a power switch, an exhaust switch, a distribution status indicator light, and a black smoke spraying speed adjusting knob thereon. When the device is used, the blackness value of the current black smoke in the gas distribution cavity 621 can be determined through the initial blackness, the power supply is turned on by inputting a set value in the set blackness, the blackness value of the black smoke in the gas distribution cavity 621 can be automatically adjusted to the set blackness value, and whether the blackness value is finished or not can be determined according to the gas distribution state indicator lamp. And then the black smoke dispensing speed is adjusted by a black smoke spraying speed adjusting knob so as to simulate the diffusion of automobile exhaust. It should be understood that the control panel may also have other function buttons, and is not limited to the control buttons in the above examples.

The utility model discloses some embodiments, black cigarette generates the whole 220V external power source that can adopt of device, also can adopt portable dismantlement lithium cell to supply power. The bottom wall of the brake device can be provided with four universal brake wheels so as to be convenient to move, and the side surface of the brake device can be adaptively provided with a handle so as to be convenient to push and pull. The black smoke generating device is cuboid, the maximum outer contour size of the black smoke generating device is 45cm 40cm 60cm, and the weight of the black smoke generating device is 20kg at most. It should be understood that the shape of the specific black smoke generating device can be adjusted according to the actual application, for example, a special bracket can be provided to replace a brake wheel, a lifting lug is used to replace a handle, and the above dimensions and weights are also illustrated, and the present invention is not limited thereto.

Example two

Based on the first embodiment, the second embodiment is different from the first embodiment in that the black smoke constant value mechanism can be implemented by image processing analysis. Specifically, a camera is disposed on an inner side wall of the housing 610, the camera is disposed toward the gas distribution box 620, and a side surface of the gas distribution box 620 is made of a high-transmittance material. The image of the black cigarette in the distribution cavity 621 is shot in real time through the camera, and the image is analyzed and processed through an accurate algorithm and then is converted with the Ringelmann blackness value by reference, so that a corresponding blackness value is generated, and whether the black cigarette in the distribution cavity 621 meets the calibration requirement is determined.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A black smoke threshold mechanism, comprising:

a constant value case (100);

the transparent baffle (200) is arranged in the fixed value shell (100) to divide the fixed value shell (100) into an air containing cavity (120) and a fixed value cavity (110) which are not communicated with each other, and the air containing cavity (120) is used for storing black smoke;

the light source (300) is arranged in the constant value cavity (110) and is used for irradiating light rays into the air containing cavity (120); and

the constant value assembly (400) is arranged in the constant value shell (100), and the constant value assembly (400) is used for detecting the light intensity of the black smoke passing through the air containing cavity (120).

2. The black smoke valuing mechanism of claim 1, wherein the valuing assembly (400) comprises:

the reflecting plate (410) is arranged on the constant value shell (100) and is opposite to the transparent baffle (200), and the air containing cavity (120) is positioned above the reflecting plate (410);

a light receiver (420) disposed in the fixed value cavity (110) for receiving the light passing through the air containing cavity (120) and reflected by the reflective plate (410) to output a corresponding light intensity.

3. The black smoke valuing mechanism of claim 2, wherein said light source (300) is an LED light; and/or

The transparent baffle (200) is a transparent glass sheet; and/or

The reflecting plate (410) is made of opaque white paper.

4. A black smoke generating apparatus, comprising:

the black smoke valuing mechanism of any one of claims 1 to 3.

5. The black smoke generating apparatus according to claim 4, further comprising:

the combustion assembly (500) is used for combusting the oil to generate black smoke;

a gas distribution assembly (600) in communication with the combustion assembly (500) for storing and ejecting the black smoke;

the combustion assembly (500) and the air distribution assembly (600) are in communication connection with the black smoke constant value mechanism, and the black smoke constant value mechanism is used for detecting the black smoke black value in the air distribution assembly (600) and controlling the running state of the combustion assembly (500).

6. Black smoke generating device according to claim 5, characterized in that said combustion assembly (500) comprises:

a fuel tank (510);

the combustion chamber (520) is communicated with the oil tank (510) through a first regulating valve (550), and the first regulating valve (550) is in communication connection with the black smoke constant value mechanism and is used for controlling the flow of oil;

a spark plug (530) disposed within the combustion chamber (520) for igniting oil; and

and the two ends of the air duct (540) are respectively communicated with the combustion chamber (520) and the air distribution assembly (600) so as to guide black smoke into the air distribution assembly (600).

7. The black smoke generating apparatus according to claim 6, wherein said combustion chamber (520) is provided with a heat insulating layer (522) at an outer circumference thereof; and/or

The outer ring of the combustion chamber (520) is provided with a cooling layer, a cooling cavity (523) for containing cooling liquid is arranged in the cooling layer, and a cooling liquid inlet (524) and a cooling liquid outlet (525) which are communicated with the cooling cavity (523) are arranged on the cooling layer.

8. The black smoke generating apparatus according to claim 6 or 7, comprising:

a cooler (541) disposed on the air duct (540) to cool the black smoke passing through the air duct (540); and/or

A filter screen (542) disposed in the air duct (540) to filter black smoke passing through the air duct (540); and/or

And the second regulating valve (543) is arranged in the air duct (540) and is in communication connection with the black smoke constant value mechanism so as to regulate the opening and closing amplitude of the air duct (540) according to the black value.

9. The black smoke generating device according to claim 6, wherein said air distribution assembly (600) comprises:

a housing (610);

the gas distribution box (620) is arranged in the shell (610), and a gas distribution cavity (621) which is respectively communicated with the gas guide pipe (540) and the gas containing cavity (120) of the black smoke constant value mechanism is arranged in the gas distribution box (620);

the exhaust plate (630) is connected in the air distribution cavity (621) in a sliding mode and used for pushing the black smoke to flow;

and the black smoke nozzle (640) is communicated with the air distribution cavity (621) to spray the black smoke.

10. The black smoke generating apparatus according to claim 9, further comprising:

the air inlet pipe (623) and the exhaust pipe (624) are both communicated with the air distribution cavity (621), the air inlet pipe (623) and the exhaust pipe (624) are both provided with a third throttle valve (625), and the black smoke value setting mechanism is in communication connection with the third throttle valve (625) and is used for controlling the third throttle valve (625) to be selectively opened and closed; and/or

A heat resistant layer (660) disposed on an outer sidewall of the housing (610); and/or

The gas distribution box (620) is formed by a light-tight plate.

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