CN106198897A - The detection device of a kind of cooking fume remover and detection method thereof - Google Patents
The detection device of a kind of cooking fume remover and detection method thereof Download PDFInfo
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- CN106198897A CN106198897A CN201610779267.4A CN201610779267A CN106198897A CN 106198897 A CN106198897 A CN 106198897A CN 201610779267 A CN201610779267 A CN 201610779267A CN 106198897 A CN106198897 A CN 106198897A
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Abstract
The invention belongs to field of lampblack purification, relate to the detection device of a kind of cooking fume remover, including the oil smoke generator set gradually along oil smoke flow direction, exhaust fume collecting hood, oil smoke air channel and frequency conversion fan, cooking fume remover to be detected is positioned at the middle part in oil smoke air channel.Also provide for the detection method of a kind of cooking fume remover, by in the case of air quantity necessarily different oil smoke concentrations, and in the case of oil smoke concentration necessarily different air quantity, modeling of sampling respectively, obtain corresponding profit and drip data, and profit drips the relation between number and oil smoke concentration.This invention simplifies the detection cycle, improve accuracy of detection, be that the parameter of emulation flue gas is in controllable state.
Description
Technical field
The invention belongs to field of lampblack purification, relate to detection device and the detection method thereof of a kind of cooking fume remover.
Background technology
Currently, it is still about the type approval test of fume purifying and operates by GB16157-2001, will be installed by inspection equipment
In laboratory wind-tunnel stage casing, by emulation, oil smoke occurring, before and after by inspection equipment, thieff hatch uses parallel-sampling instrument to sample, by cigarette
Suspended particulate substance in gas is collected in the filter cylinder of sampling instrument, is then proposed by residue by extraction and infrared weight method
Come, through quantitative analysis, instruct the purification efficiency by inspection equipment and relevant parameter.Its subject matter is: the acquisition of data is delayed
In detection 3 ~ 4 days, it is clear that can not meet actual demand.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that the detection device of a kind of cooking fume remover and detection side thereof
Method, simplifies the detection cycle, improves accuracy of detection.
For realizing above-mentioned technical purpose, the scheme that the present invention provides is: the detection device of a kind of cooking fume remover, including edge
Oil smoke generator, exhaust fume collecting hood, oil smoke air channel and the frequency conversion fan that oil smoke flow direction sets gradually, cooking fume remover position to be detected
Middle part in oil smoke air channel.Described oil smoke generator includes adjustable profit flow control assembly and oil-water evaporation assembly；Described
Being provided with in exhaust fume collecting hood with exhaust fume collecting hood cross section is the homogenizing plate of 25 ° ~ 30 ° of angles；It is positioned at described cooking fume remover to be detected forward and backward
Oil smoke air channel on offer the forward and backward thieff hatch adapted with sample devices respectively；Described cooking fume remover to be detected with after adopt
Dry hygrometer, thermometer and airflow pressure meter are set on the oil smoke air channel between sample hole.
And, described adjustable profit flow control assembly includes that two control oil, the peristaltic pump of water wager amount respectively.
And, described oil-water evaporation assembly uses 6kw temp.-regulating type electricity to take off stove, and plate surface temperature 0 ~ 300 DEG C is adjustable.
And, described even flow plate is the zinc-plated orifice plate through forward and reverse 90 ° of toothing sections of bending.
And, the cross-sectional area of described exhaust fume collecting hood is S1, the sectional area of described fume tube is S2, S1=2~2.5S2。
And, the length in the oil smoke air channel connecting exhaust fume collecting hood and cooking fume remover to be detected is that self equivalent of oil smoke air channel is straight
6.5 ~ 7.5 times of footpath, and/or, the length in the oil smoke air channel connecting cooking fume remover to be detected and frequency conversion fan is oil smoke air channel
6.5 ~ 7.5 times of self equivalent diameter.
And, described front thieff hatch is opened in 2.5 times of oil smoke air channel equivalent diameters before cooking fume remover to be detected
Position, and/or, the position of 4 ~ 5 times of oil smoke air channel equivalent diameters after cooking fume remover to be detected is located in described post-sampling hole.
And, described dry hygrometer and thermometer are all fixedly installed in the oil smoke air channel upper inner surface before post-sampling hole,
And be 1 times of oil smoke air channel equivalent diameter with the distance in post-sampling hole, quantity form precision 2.5 grades；Described airflow pressure is calculated as skin
Trustship, is fixedly installed on the oil smoke air channel axis after post-sampling hole, and is that 2 times of oil smoke air channels are worked as with the distance in post-sampling hole
Amount diameter, airflow pressure meter with oil smoke air channel outside display screen be connected.
The present invention also provides for the detection method of a kind of cooking fume remover, comprises the steps.
Step one, sets gradually oil smoke generator, exhaust fume collecting hood, oil smoke air channel and frequency conversion fan, structure along oil smoke flow direction
Build the detection line of cooking fume remover.
Step 2, is set in air quantity under a certain magnitude stationary state, and the wager amount of water is 2 times of oil, and simulation occurs extremely
The flue gas concentration of few 3 kinds of concentrations above magnitudes, the oil droplet note number of correspondence of sampling respectively, water droplet are noted number, are made oil smoke temperature, use form
Record and model；More than at least 3 kinds under the conditions of different magnitude of air quantity, remain that flue gas concentration is in a certain setting
Being worth constant, the wager amount of water is 2 times of oil, and the oil droplet note number of correspondence of sampling respectively, water droplet are noted number, made oil smoke temperature, use form
Record and model.
Step 3, the mathematical model induction and conclusion obtained according to previous step goes out formula one:
, in formula, n is that oil droplet notes number, and unit n/min, C is oil smoke concentration, unit mg/m3, Q is air quantity unit m3/ h(can be converted at this
m3/ min), K0It is the residual rate of oil smoke generator, K1It is ambient temperature coefficient, K2It is humidity of flue gas coefficient, K3It it is concentration correction
Coefficient, σ is test oil product bulkfactor.
Step 4, is positioned over the middle part in oil smoke air channel by cooking fume remover to be detected, according to detection time to oil smoke concentration
Requirement, utilizes formula one to control corresponding profit and drips number, manufacture the oil smoke of respective concentration, start frequency conversion fan and oil smoke to be detected
Depurator, frequency conversion fan is by oil smoke suction oil smoke air channel, and oil smoke is purified by cooking fume remover to be detected.
Step 5, samples to the flue gas in the forward and backward oil smoke air channel of cooking fume remover to be detected respectively, and detection is treated
The humidity of flue gas, temperature and blast, wind speed, flow in oil smoke air channel after detection cooking fume remover.
Step 6, according to formula two, obtaining the purifying rate of this cooking fume remover, P is
The purifying rate of cooking fume remover to be detected, C0It is the oil smoke concentration mg/m before cooking fume remover to be detected3, Q0It is oil to be detected
Flue gas flow m before fume purifier3/ h, C1It is cooking fume remover to be detected oil smoke concentration mg/m below3, Q1It is to be detected
Cooking fume remover flue gas flow m below3/h。
The beneficial effects of the present invention is: simplify the detection cycle, improve accuracy of detection, be at the parameter of emulation flue gas
In controllable state.
Accompanying drawing explanation
Fig. 1 is the structure of the detecting device schematic diagram of cooking fume remover.
Fig. 2 is the structural representation of oil smoke generator.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
The present embodiment provides the detection device of a kind of cooking fume remover, as it is shown in figure 1, include along oil smoke flow direction successively
Oil smoke generator, exhaust fume collecting hood, oil smoke air channel and the frequency conversion fan arranged, cooking fume remover to be detected is positioned in oil smoke air channel
Portion.Described oil smoke generator includes adjustable profit flow control assembly and oil-water evaporation assembly, as shown in Figure 2；Described collection cigarette
Being provided with in cover with exhaust fume collecting hood cross section is the homogenizing plate of 25 ° ~ 30 ° of angles, to balance the bend pipe in 90 ° of oil smoke air channel, top to air-flow
Impact；Be positioned on the oil smoke air channel that described cooking fume remover to be detected is forward and backward offer respectively adapt with sample devices before,
Post-sampling hole；Arrange on oil smoke air channel between described cooking fume remover to be detected and post-sampling hole dry hygrometer, thermometer and
Airflow pressure meter.
Further, described adjustable profit flow control assembly includes that two control oil, the wriggling of water wager amount respectively
Pump.
Further, described oil-water evaporation assembly uses 6kw temp.-regulating type electricity to take off stove, and plate surface temperature 0 ~ 300 DEG C is adjustable.
Further, described even flow plate is the zinc-plated orifice plate through forward and reverse 90 ° of toothing sections of bending.General closed planar shape
The percent of pass (circular hole area sum and the ratio of plate area) only about 60% of zinc-plated orifice plate, orifice plate is converted into zigzag mesh
Be expand breathing area, reduce windage.
Further, the cross-sectional area of described exhaust fume collecting hood is S1, the sectional area of described fume tube is S2, S1=2~2.5S2.This
Sample strengthens the projected area of petticoat pipe, is beneficial to collect oil smoke.
Further, the length in the oil smoke air channel connecting exhaust fume collecting hood and cooking fume remover to be detected is that oil smoke air channel self is worked as
6.5 ~ 7.5 times of amount diameter, and/or, the length in the oil smoke air channel connecting cooking fume remover to be detected and frequency conversion fan is oil smoke
6.5 ~ 7.5 times of air channel self equivalent diameter.Such length is arranged, and can be that detection process provides stable laminar flow shape oil smoke
Air-flow, it is simple to detection.
Further, to be opened in 2.5 times of oil smoke air channel equivalents before cooking fume remover to be detected straight for described front thieff hatch
The position in footpath, and/or, 4 ~ 5 times of oil smoke air channel equivalent diameters after cooking fume remover to be detected are located in described post-sampling hole
Position.Such thieff hatch position, can make sampled data accurate and effective the most.
Further, table on the oil smoke air channel before described dry hygrometer and thermometer are all fixedly installed in post-sampling hole
Face, and be 1 times of oil smoke air channel equivalent diameter with the distance in post-sampling hole, quantity form precision 2.5 grades；Described airflow pressure is calculated as
Pitot tube, is fixedly installed on the oil smoke air channel axis after post-sampling hole, and is 2 times of oil smoke air channels with the distance in post-sampling hole
Equivalent diameter, airflow pressure meter with oil smoke air channel outside display screen be connected.
The present embodiment also provides for the detection method of a kind of cooking fume remover, comprises the steps.
Step one, sets gradually oil smoke generator, exhaust fume collecting hood, oil smoke air channel and frequency conversion fan, structure along oil smoke flow direction
Build the detection line of cooking fume remover.
Step 2, is set in air quantity under a certain magnitude stationary state, and the wager amount of water is 2 times of oil, and simulation occurs extremely
The flue gas concentration of few 3 kinds of concentrations above magnitudes, the oil droplet note number of correspondence of sampling respectively, water droplet are noted number, are made oil smoke temperature, use form
Record and model；More than at least 3 kinds under the conditions of different magnitude of air quantity, remain that flue gas concentration is in a certain setting
Being worth constant, the wager amount of water is 2 times of oil, and the oil droplet note number of correspondence of sampling respectively, water droplet are noted number, made oil smoke temperature, use form
Record and model.
Such as, ambient temperature 14 DEG C, air pressure 101.9KPa, oil smoke generator surface temperature 166 DEG C, air quantity is at 6000m3/
H, for producing different oil smoke concentration (2 mg/m3、4mg/m3、8mg/m3、10 mg/m3) corresponding profit drips number, is shown in Table 1:
Table 1
。
Step 3, the mathematical model induction and conclusion obtained according to previous step goes out formula one:,
In formula, n is that oil droplet notes number, and unit n/min, C is oil smoke concentration, unit mg/m3, Q is air quantity unit m3/ h(is interchangeable at this
It is counted as m3/ min),
K0Be oil smoke generator residual rate (when oil smoke generator surface temperature is in 160 ~ 180 DEG C of intervals, fat residue rate
It is 55 ~ 65%),
K1It is ambient temperature coefficient, is 1 when 20 DEG C, be shown in Table 2:
Table 2
, K2It is humidity of flue gas coefficient, when 3.5%, takes 1, be shown in Table 3:
Table 3
, K3It is concentration correction coefficient, is shown in Table 4:
Table 4
, σ is test oil product bulkfactor, usually 0.85 ~ 0.9.
Step 4, is positioned over the middle part in oil smoke air channel by cooking fume remover to be detected, according to detection time to oil smoke concentration
Requirement, utilizes formula one to control corresponding profit and drips number, manufacture the oil smoke of respective concentration, start frequency conversion fan and oil smoke to be detected
Depurator, frequency conversion fan is by oil smoke suction oil smoke air channel, and oil smoke is purified by cooking fume remover to be detected.
Step 5, samples to the flue gas in the forward and backward oil smoke air channel of cooking fume remover to be detected respectively, and detection is treated
The humidity of flue gas, temperature and blast, wind speed, flow in oil smoke air channel after detection cooking fume remover.
Step 6, according to formula two, obtain the purifying rate of this cooking fume remover, P
It is the purifying rate of cooking fume remover to be detected, C0It is the oil smoke concentration mg/m before cooking fume remover to be detected3, Q0It is to be detected
Flue gas flow m before cooking fume remover3/ h, C1It is cooking fume remover to be detected oil smoke concentration mg/m below3, Q1It is to be checked
Survey cooking fume remover flue gas flow m below3/h。
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvement or deformation, these improve or deformation also should
It is considered as protection scope of the present invention.
Claims (9)
1. a detection device for cooking fume remover, including the oil smoke generator set gradually along oil smoke flow direction, exhaust fume collecting hood,
Oil smoke air channel and frequency conversion fan, cooking fume remover to be detected is positioned at the middle part in oil smoke air channel, it is characterised in that: described oil smoke occurs
Device includes adjustable profit flow control assembly and oil-water evaporation assembly；Be provided with in described exhaust fume collecting hood with exhaust fume collecting hood cross section in
The homogenizing plate of 25 ° ~ 30 ° of angles；It is positioned on the oil smoke air channel that described cooking fume remover to be detected is forward and backward to offer respectively and sets with sampling
The standby forward and backward thieff hatch adapted；On oil smoke air channel between described cooking fume remover to be detected and post-sampling hole, dry and wet is set
Degree meter, thermometer and airflow pressure meter.
The detection device of a kind of cooking fume remover the most according to claim 1, it is characterised in that: described adjustable profit stream
Amount controls assembly and includes that two control oil, the peristaltic pump of water wager amount respectively.
The detection device of a kind of cooking fume remover the most according to claim 1, it is characterised in that: described oil-water evaporation assembly
Using 6kw temp.-regulating type electricity to take off stove, plate surface temperature 0 ~ 300 DEG C is adjustable.
The detection device of a kind of cooking fume remover the most according to claim 1, it is characterised in that: described even flow plate is through just
The zinc-plated orifice plate of 90 ° of toothing sections of inverse bending.
The detection device of a kind of cooking fume remover the most according to claim 1, it is characterised in that: described exhaust fume collecting hood transversal
Area is S1, the sectional area of described fume tube is S2, S1=2~2.5S2。
The detection device of a kind of cooking fume remover the most according to claim 1, it is characterised in that: connect exhaust fume collecting hood and to be checked
The length in the oil smoke air channel surveying cooking fume remover is 6.5 ~ 7.5 times of self equivalent diameter of oil smoke air channel, and/or, connect to be checked
The length in the oil smoke air channel surveying cooking fume remover and frequency conversion fan is 6.5 ~ 7.5 times of self equivalent diameter of oil smoke air channel.
The detection device of a kind of cooking fume remover the most according to claim 6, it is characterised in that: described front thieff hatch is offered
In the position of 2.5 times of oil smoke air channel equivalent diameters before cooking fume remover to be detected, and/or, described post-sampling hole be located at away from
The position of 4 ~ 5 times of oil smoke air channel equivalent diameters after cooking fume remover to be detected.
The detection device of a kind of cooking fume remover the most according to claim 1, it is characterised in that: described dry hygrometer and temperature
Degree meter is all fixedly installed in the oil smoke air channel upper inner surface before post-sampling hole, and is 1 times of oil smoke wind with the distance in post-sampling hole
Road equivalent diameter, quantity form precision 2.5 grades；Described airflow pressure is calculated as pitot tube, after being fixedly installed in post-sampling hole
On the axis of oil smoke air channel, and it is 2 times of oil smoke air channel equivalent diameters with the distance in post-sampling hole, outside airflow pressure meter is with oil smoke air channel
Display screen connect.
9. a detection method for cooking fume remover, comprises the steps:
Step one, sets gradually oil smoke generator, exhaust fume collecting hood, oil smoke air channel and frequency conversion fan along oil smoke flow direction, builds oil
The detection line of fume purifier；
Step 2, is set in air quantity under a certain magnitude stationary state, and the wager amount of water is 2 times of oil, and simulation occurs at least 3 kinds
The flue gas concentration of concentrations above magnitude, the oil droplet note number of correspondence of sampling respectively, water droplet are noted number, are made oil smoke temperature, use charting
Get off and model；More than at least 3 kinds under the conditions of different magnitude of air quantity, remain that flue gas concentration is in a certain setting value not
Becoming, the wager amount of water is 2 times of oil, and the oil droplet note number of correspondence of sampling respectively, water droplet are noted number, made oil smoke temperature, use charting
Get off and model；
Step 3, the mathematical model induction and conclusion obtained according to previous step goes out formula one:,
In formula, n is that oil droplet notes number, and unit n/min, C is oil smoke concentration, unit mg/m3, Q is air quantity unit m3/ h, K0It is that oil smoke occurs
The residual rate of device, K1It is ambient temperature coefficient, K2It is humidity of flue gas coefficient, K3Being concentration correction coefficient, σ is test oil product
Bulkfactor；
Step 4, is positioned over the middle part in oil smoke air channel by cooking fume remover to be detected, according to requirement to oil smoke concentration during detection,
Utilize formula one to control corresponding profit and drip number, manufacture the oil smoke of respective concentration, start frequency conversion fan and fume purifying to be detected
Device, frequency conversion fan is by oil smoke suction oil smoke air channel, and oil smoke is purified by cooking fume remover to be detected；
Step 5, samples to the flue gas in the forward and backward oil smoke air channel of cooking fume remover to be detected respectively, and detects to be detected
The humidity of flue gas, temperature and blast, wind speed, flow in oil smoke air channel after cooking fume remover；
Step 6, according to formula two, obtaining the purifying rate of this cooking fume remover, P is to treat
The purifying rate of detection cooking fume remover, C0It is the oil smoke concentration mg/m before cooking fume remover to be detected3, Q0It it is oil smoke to be detected
Flue gas flow m before depurator3/ h, C1It is cooking fume remover to be detected oil smoke concentration mg/m below3, Q1It is oil to be detected
Fume purifier flue gas flow m below3/h 。
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| CN114136854A (en) * | 2020-09-03 | 2022-03-04 | 宁波方太厨具有限公司 | Multi-working-condition oil fume purification device performance evaluation system and method |
| CN114136854B (en) * | 2020-09-03 | 2024-01-16 | 宁波方太厨具有限公司 | Performance evaluation system and method for multi-working-condition oil smoke purifying device |
| CN112304260A (en) * | 2020-09-30 | 2021-02-02 | 首钢集团有限公司 | Method for determining length of sintering flue gas cover |
| CN112304260B (en) * | 2020-09-30 | 2022-04-19 | 首钢集团有限公司 | Method for determining length of sintering flue gas cover |
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