CN110567851A - High-precision oil smoke monitor and working method thereof - Google Patents
High-precision oil smoke monitor and working method thereof Download PDFInfo
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- CN110567851A CN110567851A CN201910822090.5A CN201910822090A CN110567851A CN 110567851 A CN110567851 A CN 110567851A CN 201910822090 A CN201910822090 A CN 201910822090A CN 110567851 A CN110567851 A CN 110567851A
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- 239000000779 smoke Substances 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000009413 insulation Methods 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000004868 gas analysis Methods 0.000 claims abstract description 39
- 239000011229 interlayer Substances 0.000 claims abstract description 11
- 239000003595 mist Substances 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 113
- 238000005070 sampling Methods 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 24
- 239000003517 fume Substances 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 18
- 239000004519 grease Substances 0.000 claims description 17
- 239000010410 layer Substances 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000004964 aerogel Substances 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims description 2
- 239000004071 soot Substances 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005085 air analysis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- 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
- G01N1/34—Purifying; Cleaning
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- 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
- G01N1/40—Concentrating samples
- G01N1/4022—Concentrating samples by thermal techniques; Phase changes
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- 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
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
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- 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
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- 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
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- 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
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4088—Concentrating samples by other techniques involving separation of suspended solids filtration
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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a high-precision oil smoke monitor and a working method of the oil smoke monitor, and the high-precision oil smoke monitor comprises a monitor box body, wherein a gas heater and a gas analysis chamber are arranged in the monitor box body; the gas heater comprises an inner heating shell and an outer heat insulation shell, wherein the outer heat insulation shell wraps the inner heating shell and forms an airflow heat insulation interlayer; the air inlet end and the air outlet end of the outer heat insulation shell are separated by a distance, and airflow enters the airflow heat insulation interlayer from the air inlet end of the outer heat insulation shell, dispersedly surrounds the periphery of the inner heating shell and then enters the inner heating shell; and the air outlet end of the inner heating shell is communicated with the air inlet end of the gas analysis chamber. The invention can heat the extracted oil smoke gas, eliminate water mist in the oil smoke and improve the precision of the oil smoke monitor.
Description
Technical Field
The invention relates to the technical field of oil smoke monitoring, in particular to a high-precision oil smoke monitor and a working method of the oil smoke monitor.
Background
In recent years, with the continuous development and improvement of national economic level of China, the oil smoke pollution in the food industry becomes a big problem of urban environmental pollution, and is one of the hot spots of environmental complaints, and according to incomplete statistics, the food industry related complaints account for 40% of all the complaints in all the environmental complaints.
The oil smoke monitor can monitor the oil smoke emission condition in real time, however, the oil smoke emitted by the food industry contains various foreign matters such as impurities, dust and water vapor, which causes great interference when the oil smoke monitor analyzes gas and influences the normal operation of the oil smoke monitor, so that the oil smoke gas needs to be filtered before the oil smoke gas is sampled and analyzed; when the oil fume monitor performs oil fume sampling analysis, oil fume can be adhered to the interior of an air-exhaust pump body and is extremely difficult to clean, and the accumulation of oil grease can also influence the service life of the oil fume monitor; the oil smoke discharged by the food industry contains water mist which is difficult to avoid, and when the oil smoke monitor extracts oil smoke for analysis, the water mist influences the measurement of the oil smoke concentration by the sensor based on the working principle of the oil smoke analysis sensor, so that the precision of the oil smoke monitor is influenced; the existing oil smoke monitor has the problems, and the oil smoke monitor needs to be correspondingly improved and optimized.
disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the high-precision oil smoke monitor and the working method of the oil smoke monitor, which can heat the extracted oil smoke gas, eliminate water mist and improve the precision of the oil smoke monitor.
The technical scheme is as follows: in order to achieve the purpose, the high-precision oil smoke monitor comprises a monitor box body, wherein a gas heater and a gas analysis chamber are arranged in the monitor box body; the gas heater comprises an inner heating shell and an outer heat insulation shell, wherein the outer heat insulation shell wraps the inner heating shell and forms an airflow heat insulation interlayer; the air inlet end and the air outlet end of the outer heat insulation shell are separated by a distance, and airflow enters the airflow heat insulation interlayer from the air inlet end of the outer heat insulation shell, dispersedly surrounds the periphery of the inner heating shell and then enters the inner heating shell; and the air outlet end of the inner heating shell is communicated with the air inlet end of the gas analysis chamber.
Furthermore, an airflow heating channel is arranged in the inner shell, and a plurality of heat exchange plates are arranged in the airflow heating channel in a staggered mode to form a zigzag structure; the edges of the heat exchange plates are curved towards the input end of the gas flow; the circumferential distance between the air inlet end and the air outlet end of the outer heat insulation shell is at least three quarters of circumference.
Furthermore, the air outlet end of the air heater is connected with the air inlet end of the air analysis chamber through a heat insulation pipeline, and a heat insulation aerogel layer or a phenolic foam layer is arranged on the outer layer of the heat insulation pipeline.
Further, a temperature sensor is arranged in the gas analysis chamber, and a signal output end of the temperature sensor is connected with a signal input end of the gas heater.
Further, an air suction pump, a coarse filter and a processor are arranged in the monitor box body; a gas sensor is arranged in the gas analysis chamber, and the signal output end of the gas sensor is connected with the signal input end of the processor; the air inlet end of the coarse filter is connected with the outside through an oil fume sampling pipeline, and the air outlet end of the coarse filter is connected with the air inlet end of the air heater; and a filter screen filtering device is arranged at the joint of the oil fume sampling pipeline.
Furthermore, one end of the filter screen filtering device is provided with a pipeline plug-in port which is connected with the oil smoke sampling pipeline; the other end of the filter is a flow-dividing air exhaust port which is columnar, a plurality of air exhaust holes are uniformly distributed on the side wall, and metal filter screens are arranged on the air exhaust holes; the periphery of the shunting air exhaust port is provided with a detachable metal dust cover which is of a metal net structure, and the diameter of the net is larger than that of the metal filter screen.
Furthermore, a large-aperture composite filter screen is arranged in the coarse-effect filter, and the composite filter screen sequentially comprises a stainless steel filter screen, a fiber filter screen and an electrostatic dust removal filter screen from outside to inside; the oil smoke sampling pipeline is a transparent hose and adopts a splicing structure.
Further, an air suction pump and an oil-water separator are arranged in the monitor box body; the gas outlet end of the gas analysis chamber is connected with the gas inlet end of the oil-water separator, the gas outlet end of the oil-water separator is connected with the gas inlet end of the air pump, and the gas outlet end of the air pump is communicated to the outside; an oil storage tank is arranged in the oil-water separator and is detachably arranged.
Further, an annular connecting port is arranged at the lower end of the oil-water separator, and the surface of the outer ring of the annular connecting port is an elastic body; the oil storage tank is arranged below the oil-water separator, and the notch is upwards sleeved on the annular connecting port and clamped tightly; the oil storage tank is arranged in a transparent manner and is marked with oil storage scale marks; a converging groove is formed below the filtering piece in the oil-water separator; the converging groove is funnel-shaped, the convergence converging part of the funnel structure is an opening, and the converging part is connected with an oil guide rod; the oil guide rod is vertically arranged and extends to point to the oil storage tank.
Further, a buzzer is arranged in the monitor box body, a grease height measuring device is arranged in the oil storage tank, and a signal output end of the grease height measuring device is connected with a signal input end of the buzzer.
The invention relates to a working method of a high-precision oil smoke monitor, which comprises the following specific steps:
The oil fume sampling pipeline extracts oil fume gas, and the oil fume gas enters the gas heater after being filtered by the filter screen filtering device and the coarse filter; the oil smoke gas is subjected to water mist elimination pretreatment in the gas heater and then enters the gas analysis chamber; a gas sensor in the gas analysis chamber analyzes and detects the oil smoke concentration of the oil smoke gas and transmits information to the processor; the oil-smoke gas enters the oil-water separator from the gas analysis chamber, the oil-water separator filters and separates grease components in the oil-smoke gas, and the filtered oil-smoke gas enters the air extraction pump and then is discharged to the outside.
Has the advantages that:
1. The extracted oil smoke gas is subjected to heating pretreatment, water mist in the oil smoke gas is eliminated, and the influence of the water mist on the accuracy of an oil smoke monitor is reduced;
2. an airflow heat insulation layer is arranged in the gas heater to insulate heat of the oil smoke gas; a heat insulation pipeline is arranged between the gas heater and the gas analysis chamber, so that the heat loss is further reduced;
3. an oil-water separator is additionally arranged between the gas analysis chamber and the air suction pump to separate grease, so that the service life of the oil fume monitor is prolonged;
4. A detachable oil storage tank is arranged in the oil-water separator, and a buzzer sends out a signal after the oil storage tank is filled with oil, so that the oil-water separator is convenient to detach and clean in time;
5. An oil guide rod is arranged in the oil-water separator, so that oil can be conveniently collected; the gas analysis chamber is connected with the outside through a transparent and detachable oil smoke sampling pipe, so that the oil smoke sampling pipe is convenient to detach and clean;
6. A filter screen filtering device is arranged at the interface of the oil fume sampling pipeline to block large particle foreign matters, and the double filtering of the port and the dust cover improves the filtering effect;
7. The oil fume sampling pipeline and the filter screen filtering device are in a plug-in design, so that the oil fume sampling pipeline and the filter screen filtering device are easy to disassemble and clean;
8. The large-aperture composite filter screen is arranged in the coarse-effect filter, so that the measurement of the oil smoke concentration is not influenced.
Drawings
FIG. 1 is a schematic diagram of the relationship of components of a soot monitor;
FIG. 2 is a schematic view of an oil-water separator;
FIG. 3 is a schematic view of a screen filter apparatus;
FIG. 4 is a schematic half-section of a gas heating chamber without a heat exchange plate;
FIG. 5 is a schematic half-section of a gas heating chamber with heat exchange plates;
Figure 6 is a perspective schematic view of a gas heating chamber.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
the high-precision oil smoke monitor and the working method of the oil smoke monitor as shown in the attached figures 1 to 6 comprise a monitor box body 1, wherein a gas heater 5 and a gas analysis chamber 2 are arranged in the monitor box body 1; the gas heater 5 comprises an inner heating shell 52 and an outer heat insulation shell 51, wherein the outer heat insulation shell 51 covers the inner heating shell 52 and forms a gas flow heat insulation interlayer 53; the air inlet end and the air outlet end of the outer heat insulation shell 51 are separated by a distance, and air flow enters the air flow heat insulation interlayer 53 from the air inlet end of the outer heat insulation shell 51, is dispersed and surrounded around the inner heating shell 52 and then enters the inner heating shell 52; the gas outlet end of the inner heating shell 52 is communicated with the gas inlet end of the gas analysis chamber 2.
because the device is applied to the food industry, water mist is difficult to avoid in the oil smoke gas extracted by the oil smoke monitor, the gas heater 5 heats the extracted oil smoke gas, the water mist is eliminated, and the influence on the measurement precision of the gas sensor 9 is reduced; the gas heater 5 comprises an inner heating shell 52 and an outer heat insulation shell 51, the outer heat insulation shell 51 covers the inner heating shell 52 and forms a gas flow heat insulation interlayer 53, so that the gas flow firstly forms a layer of heat insulation of the gas flow around the inner heating shell 52 before entering the inner heating shell 52; the air inlet end and the air outlet end of the outer heat insulation shell 51 are separated by a distance, so that the air flow can be dispersed and wrapped on the whole inner heating shell 52; the airflow enters the airflow heat insulation interlayer 53 from the air inlet end of the outer heat insulation shell 51, is scattered around the inner heating shell 52, and then enters the inner heating shell 52, so that a stable airflow heat insulation layer is formed; the gas flow is heated in the inner heating shell 52, the gas outlet end of the inner heating shell 52 is communicated with the gas inlet end of the gas analysis chamber 2, and the gas flow enters the gas inlet end of the gas analysis chamber 2 from the gas outlet end of the inner heating shell 52.
An airflow heating channel 54 is arranged inside the inner heating shell 52, and a plurality of heat exchange plates 55 are staggered in the airflow heating channel 54 to form a zigzag structure; the heat exchange plate 55 can increase the gas heating area, and the zigzag structure can increase the gas heating time and improve the heating effect of the gas heater 5.
the edges of the heat exchange plates 55 are bent towards the input end of the air flow, slowing down the air flow movement and increasing the heating time of the air flow.
the circumferential distance between the air inlet end and the air outlet end of the outer heat insulation shell 51 is at least three quarters of circumference, so that the air flow can be dispersed and filled in the whole air flow heat insulation interlayer 53, and the heat insulation effect of the air flow is improved.
The gas outlet end of the gas heater 5 is connected with the gas inlet end of the gas analysis chamber 2 through a heat insulation pipeline 13, and a heat insulation aerogel layer or a phenolic foam layer is arranged on the outer layer of the heat insulation pipeline 13, so that heat loss when heated gas enters the gas analysis chamber 2 is reduced.
The gas analysis chamber 2 is internally provided with a temperature sensor 10 for detecting the temperature condition in the gas analysis chamber 2 and preventing the temperature in the gas analysis chamber 2 from overheating and damaging parts, the signal output end of the temperature sensor 10 is connected with the signal input end of the gas heater 5, and the output power of the gas heater 5 is fed back and adjusted according to the temperature condition in the gas analysis chamber 2.
An air suction pump 4, a coarse filter 6 and a processor 8 are arranged in the monitor box body 1; a gas sensor 9 is arranged in the gas analysis chamber 2, and the signal output end of the gas sensor 9 is connected with the signal input end of the processor 8; the air inlet end of the coarse filter 6 is connected with the outside through an oil smoke sampling pipeline 7, the air outlet end of the coarse filter 6 is connected with the air inlet end of the gas heater 5, and oil smoke gas entering the gas heater 5 is filtered; a filter screen filtering device 7 is arranged at the interface of the oil fume sampling pipeline 7 to primarily filter dust and sundries;
because the oil smoke discharged by the food industry contains various foreign matters such as impurities, dust, water vapor and the like, great interference can be caused when the oil smoke monitor carries out gas analysis, and the normal work of the oil smoke monitor is influenced, so that the oil smoke gas needs to be filtered before the oil smoke gas is sampled and analyzed; the coarse filter 6 is matched with the filter screen filtering device 7 for use, and compared with the traditional single filter piece, the possibility that the oil smoke sampling pipeline 7 is blocked due to the adhesion of foreign matters can be reduced, and the structural arrangement of the device is more reasonable.
One end of the filter screen filtering device 7 is provided with a pipeline inserting port 71 which is connected with the oil smoke sampling pipeline 7, and the arrangement of the pipeline inserting port 71 is convenient for the disassembly and assembly of the filter screen filtering device 7 and is easy for the cleaning and the replacement of the filter screen filtering device 7; the other end of the filter screen filtering device 7 is a shunting air exhaust port 72, the shunting air exhaust port 72 is columnar, a plurality of air exhaust holes 73 are uniformly distributed on the side wall, the total area of the air exhaust holes 73 is increased by the arrangement of the plurality of air exhaust holes 73, the air exhaust effect is better than that of a single air exhaust hole, the influence on the oil fume monitor caused by the blockage of the air exhaust holes 73 can be reduced by the arrangement of the plurality of air exhaust holes 73, and the metal filter screen 74 is arranged on the air exhaust holes 73 to perform coarse filtration on dust and sundries.
the periphery of the shunting air exhaust port 72 is provided with a detachable metal dust cover 75, the metal dust cover 75 is inserted into or screwed with the shunting air exhaust port 72, the detachable design facilitates the replacement and the detachment of the metal dust cover 75, and meanwhile, the metal dust cover 75 can be replaced according to different environments, so that the action effect of the metal dust cover 75 is more targeted; metal dust cover 75 is as the filter screen of large granule foreign matter, with metal filter screen 74 realizes dual filtration, promotes the filter effect of filter screen filter equipment 7 reduces the foreign matter adhesion simultaneously and blocks up the possibility of reposition of redundant personnel port 72 of bleeding, metal dust cover 75 is metal network structure, and the net diameter is greater than metal filter screen 74 plays the filterable effect of layering.
Oil smoke sampling pipeline 7 is transparent hose, conveniently observes oil smoke sampling pipeline 7, just oil smoke sampling pipeline 7 adopts the grafting structure, with filter screen filter device 7's pipeline interface 71 cooperation is convenient for oil smoke sampling pipeline 7 with filter screen filter device 7's dismouting.
Be provided with the compound filter screen of large aperture in coarse filter 6, the large aperture makes compound filter screen has coarse effect's filter effect, can not the measurement of oil smoke concentration and produce the influence, compound filter screen outside-in is stainless steel filter screen, fiber filter screen and electrostatic precipitator filter screen in proper order for filter debris and dust.
An air suction pump 4 and an oil-water separator 3 are arranged in the monitor box body 1; the gas outlet end of the gas analysis chamber 2 is connected with the gas inlet end of the oil-water separator 3, the gas outlet end of the oil-water separator 3 is connected with the gas inlet end of the air pump 4, and the gas outlet end of the air pump 4 is communicated to the outside; an oil storage tank 31 is arranged in the oil-water separator 3, the oil storage tank 31 is detachably arranged, and the oil storage tank is convenient to detach and clean after being fully stored; when the oil smoke monitor performs oil smoke sampling analysis, oil smoke can be adhered to the interior of an air-exhaust pump body and is extremely difficult to clean; the oil-water separator 3 separates grease before oil smoke enters the air pump 4, and the service life of the oil smoke monitor is prolonged.
After entering the gas analysis chamber 2, the extracted oil smoke gas is sensed by the gas sensor 9, and data are transmitted to the processor 8; the oil-water separator 3 is used for separating oil from water in the gas to separate grease, so that fine oil smoke particles are prevented from being adhered to the inside of the air extracting pump 4 to influence the normal work of the monitor.
The lower end of the oil-water separator 3 is provided with an annular connecting port 32, and the outer ring surface of the annular connecting port 32 is an elastic body; the oil storage tank 31 is arranged below the oil-water separator 3, and the notch is upwards sleeved on and clamped with the annular connecting port 32; because the outer ring surface of the annular connecting port 32 is an elastic body, the sealing performance of the oil-water separator 3 can be improved when the oil storage tank 31 is tightly sleeved and clamped. Oil storage tank 31 is transparent setting, and is marked the oil storage capacity scale mark, and is convenient right the oil mass in the oil storage tank 31 is observed.
A confluence groove 33 is arranged below the filtering piece in the oil-water separator 3; the converging groove 33 is funnel-shaped, the convergent converging part of the funnel structure is an opening, and an oil guide rod 34 is connected to the opening; the oil guide rod 34 is vertically arranged, extends to the oil storage tank 31 and guides collected oil into the oil storage tank 31; grease in the oil smoke gas is adsorbed by the filtering element when passing through the oil-water separator 3, and the grease is condensed into drops and then drops to the confluence groove 33 under the action of gravity, and is converged to the opening along the confluence groove 33 and then slides to the oil storage tank 31 along the oil guide rod 34; the arrangement of the converging groove 33 and the oil guide rod 34 enables the converging process of the grease to be standardized, and the grease in the oil-water separator 3 is prevented from flowing randomly.
A buzzer 14 is arranged in the monitor box body 1, a grease height measuring device 35 is arranged in the oil storage tank 31, and a signal output end of the grease height measuring device 35 is connected with a signal input end of the buzzer 14; after the oil storage tank 31 is full, the oil height measuring device 35 sends out a signal and transmits the signal to the buzzer 14; the buzzer 14 buzzes an alarm to remind the user to clean the oil storage tank 31 timely.
According to the high-precision oil smoke monitor, the working method comprises the following steps: the oil fume sampling pipeline 12 is used for extracting oil fume gas, and the oil fume gas enters the gas heater 5 after being filtered by the filter screen filtering device 7 and the coarse filter 6; the oil smoke gas is subjected to water mist elimination pretreatment in the gas heater 5 and then enters the gas analysis chamber 2; the gas sensor 9 in the gas analysis chamber 2 analyzes and detects the oil smoke concentration of the oil smoke gas and transmits the information to the processor 8; oil smoke gas enters the oil-water separator 3 from the gas analysis chamber 2, the oil-water separator 3 filters and separates grease components in the oil smoke gas, and the filtered oil smoke gas enters the air pump 4 and then is discharged to the outside.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. the utility model provides a high accuracy oil smoke monitor which characterized in that: the monitoring instrument comprises a monitoring instrument box body (1), wherein a gas heater (5) and a gas analysis chamber (2) are arranged in the monitoring instrument box body (1); the gas heater (5) comprises an inner heating shell (52) and an outer heat insulation shell (51), wherein the outer heat insulation shell (51) wraps the inner heating shell (52) and forms an airflow heat insulation interlayer (53); the air inlet end and the air outlet end of the outer heat insulation shell (51) are separated by a distance, and air flow enters the air flow heat insulation interlayer (53) from the air inlet end of the outer heat insulation shell (51), is scattered around the inner heating shell (52) and then enters the inner heating shell (52); the gas outlet end of the inner heating shell (52) is communicated with the gas inlet end of the gas analysis chamber (2).
2. The high accuracy oil smoke monitor of claim 1, characterized in that: an airflow heating channel (54) is arranged inside the inner shell (52), and a plurality of heat exchange plates (55) are arranged in the airflow heating channel (54) in a staggered mode to form a zigzag structure; the edges of the heat exchange plates (55) are bent towards the input end of the gas flow; the circumferential distance between the air inlet end and the air outlet end of the outer heat insulation shell (51) is at least three quarters of a circle.
3. the high accuracy oil smoke monitor of claim 1, characterized in that: the gas outlet end of the gas heater (5) is connected with the gas inlet end of the gas analysis chamber (2) through a heat insulation pipeline (13), and a heat insulation aerogel layer or a phenolic foam layer is arranged on the outer layer of the heat insulation pipeline (13); and a temperature sensor (10) is arranged in the gas analysis chamber (2), and the signal output end of the temperature sensor (10) is connected with the signal input end of the gas heater (5).
4. the high accuracy oil smoke monitor of claim 1, characterized in that: an air suction pump (4), a coarse filter (6) and a processor (8) are arranged in the monitor box body (1); a gas sensor (9) is arranged in the gas analysis chamber (2), and the signal output end of the gas sensor (9) is connected with the signal input end of the processor (8); the air inlet end of the coarse filter (6) is connected with the outside through an oil smoke sampling pipeline (12), and the air outlet end of the coarse filter (6) is connected with the air inlet end of the air heater (5); and a filter screen filtering device (7) is arranged at the joint of the oil fume sampling pipeline (12).
5. The high accuracy oil smoke monitor of claim 4, wherein: one end of the filter screen filtering device (7) is provided with a pipeline socket (71) which is connected with the oil smoke sampling pipeline (12); the other end is a shunt air exhaust port (72), the shunt air exhaust port (72) is columnar, a plurality of air exhaust holes (73) are uniformly distributed on the side wall, and a metal filter screen (74) is arranged on each air exhaust hole (73); the reposition of redundant personnel port of bleeding (72) periphery is equipped with detachable metal dust cover (75), metal dust cover (75) are metal network structure, and the net diameter is greater than metal filter screen (74).
6. The high accuracy oil smoke monitor of claim 4, wherein: a large-aperture composite filter screen is arranged in the coarse filter (6), and the composite filter screen sequentially comprises a stainless steel filter screen, a fiber filter screen and an electrostatic dust removal filter screen from outside to inside; the oil smoke sampling pipeline (12) is a transparent hose, and the oil smoke sampling pipeline (12) adopts a plug-in structure.
7. The high accuracy oil smoke monitor of claim 1, characterized in that: an air pump (4) and an oil-water separator (3) are also arranged in the monitor box body (1); the gas outlet end of the gas analysis chamber (2) is connected with the gas inlet end of the oil-water separator (3), the gas outlet end of the oil-water separator (3) is connected with the gas inlet end of the air pump (4), and the gas outlet end of the air pump (4) is communicated to the outside; an oil storage tank (31) is arranged in the oil-water separator (3), and the oil storage tank (31) is detachably arranged.
8. The high accuracy oil smoke monitor of claim 7, wherein: an annular connecting port (32) is formed in the lower end of the oil-water separator (3), and the outer ring surface of the annular connecting port (32) is an elastic body; the oil storage tank (31) is arranged below the oil-water separator (3), and a notch is upwards sleeved on the annular connecting port (32) and clamped; the oil storage tank (31) is arranged in a transparent manner and is marked with oil storage scale marks; a confluence groove (33) is arranged below the filtering piece in the oil-water separator (3); the converging groove (33) is funnel-shaped, the convergence converging part of the funnel structure is an opening, and an oil guide rod (34) is connected with the convergence converging part; the oil guide rod (34) is vertically arranged and extends to point to the oil storage tank (31).
9. The high accuracy oil smoke monitor of claim 7, wherein: the monitor is characterized in that a buzzer (14) is arranged in the monitor box body (1), a grease height measuring device (35) is arranged in the oil storage tank (31), and a signal output end of the grease height measuring device (35) is connected with a signal input end of the buzzer (14).
10. The operating method of the high-precision soot monitor as set forth in claims 1 to 9, wherein: the oil fume sampling pipeline (12) is used for extracting oil fume gas, and the oil fume gas enters the gas heater (5) after being filtered by the filter screen filtering device (7) and the coarse filter (6); the oil smoke gas is subjected to water mist elimination pretreatment in the gas heater (5) and then enters the gas analysis chamber (2); a gas sensor (9) in the gas analysis chamber (2) analyzes and detects the oil smoke concentration of the oil smoke gas and transmits information to the processor (8); oil smoke gas enters the oil-water separator (3) from the gas analysis chamber (2), the oil-water separator (3) filters and separates grease components in the oil smoke gas, and the filtered oil smoke gas enters the air suction pump (4) and is then discharged to the outside.
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