CN112395544A - Exhaust gas collection efficiency evaluation method, data processing method and device - Google Patents

Exhaust gas collection efficiency evaluation method, data processing method and device Download PDF

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CN112395544A
CN112395544A CN202011419711.4A CN202011419711A CN112395544A CN 112395544 A CN112395544 A CN 112395544A CN 202011419711 A CN202011419711 A CN 202011419711A CN 112395544 A CN112395544 A CN 112395544A
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王成林
黄娟
李金菊
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Huize Nanjing Environmental Protection Technology Co ltd
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Abstract

The invention relates to a waste gas collection efficiency evaluation method, a data processing method and a device, wherein the waste gas collection efficiency evaluation method comprises the following steps: acquiring first exhaust gas data and second exhaust gas data, wherein the first exhaust gas data is acquired from an exhaust gas collecting flow path, and the second data is acquired from the vicinity of an exhaust gas source; and calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data. The method for evaluating the exhaust gas collection efficiency obtains the first exhaust gas data on the exhaust gas collection flow path, obtains the second exhaust gas data near the exhaust gas source, and calculates the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data, and has the advantages that: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.

Description

Exhaust gas collection efficiency evaluation method, data processing method and device
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a waste gas collection efficiency evaluation method, a data processing method and a data processing device.
Background
In recent years, in order to protect the air quality, a series of laws, regulations and standards are established and produced by the nation, and the treatment of waste gas pollution by various industries is also strongly promoted, so that the further deterioration of the air pollution problem is effectively controlled. However, at the present stage, the following problems exist in the exhaust gas collection: there is no effective means for evaluating the efficiency of exhaust gas collection, and the effectiveness of exhaust gas collection can only be judged by the original way of smelling the odor through the nose. Is not beneficial to the further promotion of air pollution control.
Disclosure of Invention
Based on this, the embodiment of the application provides an exhaust gas collection efficiency evaluation method, a data processing method and a device, which are used for judging the exhaust gas collection efficiency of an exhaust gas collection device.
In a first aspect, an embodiment of the present application provides an exhaust gas collection efficiency evaluation method, including the following steps:
acquiring first exhaust gas data and second exhaust gas data, wherein the first exhaust gas data is acquired from an exhaust gas collecting flow path, and the second data is acquired from the vicinity of an exhaust gas source;
and calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data.
In one embodiment, the step of calculating the exhaust gas collection efficiency η according to the first exhaust gas data and the second exhaust gas data is specifically:
calculating the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total amount of exhaust diffusion M per unit time based on the second exhaust dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDAnd calculating the waste gas collection efficiency eta.
In one embodiment, the first exhaust data is acquired from within an exhaust collection port.
In one embodiment, the first exhaust gas data comprises at least exhaust gas concentration data C1And exhaust gas flow rate data V1。
In one embodiment, said calculating of total mass M of exhaust gas collected per unit time from said first exhaust gas dataTCThe concrete formula of the steps is as follows:
Figure BDA0002821750460000021
wherein, the
Figure BDA0002821750460000022
Is the average exhaust gas concentration per unit time, said
Figure BDA0002821750460000023
The S is a cross-sectional area of a path through which the exhaust gas is collected as an average flow velocity of the exhaust gas per unit time.
In one embodiment, the second exhaust data is obtained from a sensitive diffusion region.
In one embodiment, the second exhaust gas data comprises at least exhaust gas concentration data C2。
In one embodiment, the total amount of exhaust diffusion M per unit time is calculated based on the second exhaust dataTDThe method comprises the following specific steps:
according to the exhaust gas concentration data C2Determining the exhaust gas concentration variation DeltaC per unit time2According to the change value deltaC of the exhaust gas concentration per unit time2Calculating the total amount M of exhaust gas diffusion in the unit timeTD。
In one embodiment, theAccording to the change value delta C of the exhaust gas concentration in the unit time2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe calculation formula of the steps is as follows:
MTD＝ΔC2*V
wherein V is the equivalent volume of exhaust gas diffusion per unit time.
In one embodiment, the equivalent volume V of exhaust gas diffusion per unit time may be determined by any one of numerical simulation, experimental evaluation, or theoretical calculation.
In one embodiment, said mass M is determined by the total mass of exhaust gases collected per unit of timeTCAnd the total amount M of exhaust gas diffused per unit timeTDThe calculation formula of the step of calculating the waste gas collection efficiency eta is as follows:
Figure BDA0002821750460000024
in one embodiment, the exhaust gas concentration C1Said exhaust gas flow velocity V1And the exhaust gas concentration C2The data is monitored in real time.
The method for evaluating the exhaust gas collection efficiency obtains the first exhaust gas data on the exhaust gas collection flow path, obtains the second exhaust gas data near the exhaust gas source, and calculates the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data, and has the advantages that: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.
In a second aspect, an embodiment of the present application provides an exhaust gas collection efficiency evaluation device, including:
the first sensor is used for acquiring first exhaust data on an exhaust gas collecting flow path;
a second sensor for acquiring second exhaust data proximate the exhaust source; and
the calculation module is simultaneously electrically connected with the first sensor and the second sensor, and the calculation module calculates the waste gas collection efficiency eta according to the first waste gas data and the second waste gas data.
In some embodiments, the calculation module calculates the exhaust gas collection efficiency η based on the first exhaust gas data and the second exhaust gas data by:
the calculation module calculates and obtains total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total diffusion quantity M of the exhaust gas in unit time according to the second exhaust gas dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
In some embodiments, the first sensor is disposed within the exhaust collection port.
In some embodiments, the second sensor is disposed in a sensitive diffusion region.
In some embodiments, the first exhaust data comprises at least exhaust concentration data C1And exhaust gas flow rate data V1。
In some embodiments, the second exhaust gas data comprises at least exhaust gas concentration data C2。
Above-mentioned exhaust gas collection efficiency evaluation device, through gathering at the waste gas and flowing through the route and acquireing first waste gas data, acquireing second waste gas data near the waste gas source to according to first waste gas data and second waste gas data calculation waste gas collection efficiency eta, its beneficial effect is: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.
In a third aspect, an embodiment of the present application provides an exhaust gas collecting apparatus, including:
the waste gas collecting port is arranged near the waste gas source and used for collecting waste gas;
the first sensor is arranged on the exhaust gas collecting flow path and used for acquiring first exhaust gas data;
the second sensor is arranged near the exhaust gas source and used for acquiring second exhaust gas data; and
the calculation module is simultaneously electrically connected with the first sensor and the second sensor, and the calculation module calculates the waste gas collection efficiency eta according to the first waste gas data and the second waste gas data.
In one embodiment, the calculation module calculates the exhaust gas collection efficiency η based on the first exhaust gas data and the second exhaust gas data by:
the calculation module calculates and obtains total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total diffusion quantity M of the exhaust gas in unit time according to the second exhaust gas dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
In one embodiment, the first sensor is disposed within the exhaust collection port.
In one embodiment, the second sensor is located in the sensitive diffusion region.
In one embodiment, the first exhaust gas data comprises at least exhaust gas concentration data C1And exhaust gas flow rate data V1。
In one embodiment, the second exhaust gas data comprises at least exhaust gas concentration data C2。
The waste gas collecting device comprises a waste gas collecting port, a first sensor, a second sensor and a calculating module, wherein the first sensor is used for collecting first waste gas data on a waste gas collecting flow-through path, the second sensor is used for collecting second waste gas data near a waste gas source, and the calculating module is used for calculating waste gas collecting efficiency eta according to the first waste gas data and the second waste gas data. The beneficial effects are as follows: the exhaust gas collection efficiency can be calculated while collecting the exhaust gas, thereby providing a data basis for evaluating the exhaust gas collection efficiency of the exhaust gas collection device.
In a fourth aspect, an embodiment of the present application provides a data processing method, including the following steps:
receiving first exhaust gas data acquired from an exhaust gas collection flow path and second exhaust gas data acquired from a vicinity of an exhaust gas source;
and calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data.
In some embodiments, the step of calculating the exhaust gas collection efficiency η according to the first exhaust gas data and the second exhaust gas data is specifically:
calculating to obtain the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total diffusion quantity M of the exhaust gas in unit time according to the second exhaust gas dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
In some embodiments, the total mass M of exhaust gas collected per unit time is calculated from the first exhaust gas dataTCThe calculation formula of the steps is as follows:
Figure BDA0002821750460000051
wherein, the
Figure BDA0002821750460000052
Is the average exhaust gas concentration per unit time, said
Figure BDA0002821750460000053
The S is a cross-sectional area of a path through which the exhaust gas is collected as an average flow velocity of the exhaust gas per unit time.
In some embodiments, the value Δ C varies according to the exhaust gas concentration per unit time2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe calculation formula of the steps is as follows:
MTD＝ΔC2*V
wherein V is the equivalent volume of exhaust gas diffusion per unit time.
In some embodiments, said mass M is determined by the total mass of exhaust gases collected per unit of timeTCAnd the total amount M of exhaust gas diffused per unit timeTDThe calculation formula of the step of calculating the waste gas collection efficiency eta is as follows:
Figure BDA0002821750460000054
the data processing method has the advantages that the first waste gas data obtained from the waste gas collecting flow path and the second waste gas data obtained from the position near the waste gas source are received, and the waste gas collecting efficiency eta is calculated according to the first waste gas data and the second waste gas data: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.
In a fifth aspect, an embodiment of the present application provides a data processing apparatus, including:
the first receiving module is used for receiving first exhaust gas data, and the first exhaust gas data is acquired from an exhaust gas collecting flow path;
a second receiving module for receiving second exhaust gas data, the second exhaust gas data being obtained from a vicinity of an exhaust gas source; and
and the calculation module is electrically connected with the first receiving module and the second receiving module and is used for calculating the waste gas collection efficiency eta according to the first waste gas data and the second waste gas data.
Above-mentioned data processing apparatus receives first waste gas data through first receiving module, and second receiving module receives second waste gas data, and calculation module calculates waste gas collection efficiency eta according to first waste gas data and second waste gas data, and its beneficial effect is: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.
In a sixth aspect, an embodiment of the present application provides a data processing apparatus, including: a processor, memory, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps of the third aspect of embodiments of the present application.
In a seventh aspect, this application embodiment provides a computer-readable storage medium for storing a computer program, where the computer program can make a computer execute the step instructions in the third aspect of this application embodiment.
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FIG. 1 is a flow chart of an exhaust collection efficiency assessment method according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of another exhaust collection efficiency assessment method provided by an embodiment of the present application;
fig. 3 is a schematic structural diagram of an exhaust gas collection efficiency evaluation device according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of another exhaust collection efficiency evaluation device according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of an exhaust gas collecting device according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of another exhaust collection device provided in an embodiment of the present application;
fig. 7 is a flowchart of a data processing method according to an embodiment of the present application;
FIG. 8 is a flow chart of another data processing method provided by an embodiment of the present application;
fig. 9 is a block diagram illustrating functional blocks of a data processing apparatus according to an embodiment of the present disclosure;
fig. 10 is a block diagram illustrating functional blocks of another data processing apparatus according to an embodiment of the present disclosure.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention can be embodied in many different forms than those herein described and many modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" or "in communication with" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "vertical", "horizontal", "left", "right" and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, 3 and 4, an embodiment of the method for evaluating exhaust collection efficiency includes the following steps:
step S10: first exhaust gas data is acquired from an exhaust collection flow path and second exhaust gas data is acquired from a vicinity of an exhaust source.
Specifically, first exhaust gas data is acquired by the first sensor 20, and second exhaust gas data is acquired by the second sensor 30. The first sensor 20 is disposed on the exhaust gas collecting flow path R during the exhaust gas collecting operation, and the second sensor 30 is disposed near the exhaust gas source 01. Through acquireing first exhaust data on route R is flowed through in the waste gas collection, acquireing second exhaust data near waste gas source 01, can ensure that first exhaust data and second exhaust data have higher accuracy, and then help improving the accuracy of waste gas collection efficiency eta.
Preferably, referring to fig. 3, the first exhaust data is obtained from the exhaust gas collecting port 10, the exhaust gas collecting port 10 is used as a collecting channel for collecting the exhaust gas, and the first exhaust data is obtained from the exhaust gas collecting port 10, so that the accuracy of the first exhaust data can be greatly improved.
In some embodiments, the first exhaust data includes at least exhaust concentration data C1And exhaust gas flow rate data V1Two data, exhaust gas concentration data C1And exhaust gas flow rate data V1AsCalculating the total mass M of the exhaust gas collected in unit timeTCIs obtained on the exhaust gas collecting flow path R by the first sensor 20.
Preferably, referring to fig. 4, the second exhaust gas data is obtained from a sensitive diffusion area B near the exhaust gas source 01, where the exhaust gas has a uniform diffusion characteristic, and the obtaining of the second exhaust gas data in the sensitive diffusion area B helps to improve the accuracy of the second exhaust gas data, and thus helps to improve the accuracy of the exhaust gas collection efficiency η.
In some embodiments, the second exhaust gas data includes at least exhaust gas concentration data C2. Exhaust gas concentration data C2As a total amount M of exhaust gas diffused per unit timeTDIs used for calculating the total amount of exhaust gas diffusion M per unit timeTD。
Step S30: and calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data.
Referring to fig. 2, step S30 further includes step S301, step S302, and step S303.
Step S301: calculating the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTC。
Specifically, the calculation module is used for calculating the concentration data C of the exhaust gas1And exhaust gas flow rate data V1Calculating the total mass M of the exhaust gas collected in unit timeTCThe calculation formula is as follows:
Figure BDA0002821750460000081
wherein the content of the first and second substances,
Figure BDA0002821750460000082
to pass through C1The calculated average exhaust gas concentration per unit time can be obtained by acquiring a plurality of exhaust gas concentration data C per unit time1And for a plurality of exhaust gas concentration data C1And calculating the average value after summing.
Figure BDA0002821750460000083
To pass through V1The calculated average exhaust gas flow rate per unit time can be obtained by acquiring a plurality of exhaust gas flow rate data V per unit time1And for a plurality of exhaust gas flow rate data V1And calculating the average value after summing. S is a cross-sectional area of the exhaust gas collecting flow path R at the position of the first sensor 10, and can be obtained by measurement. Preferably, when the first sensor 10 is disposed in the exhaust gas collection port, S is the cross-sectional area of the exhaust gas collection port 10, and the tangible exhaust gas collection port 10 is easier to measure and calculate than the intangible exhaust gas collection flow path R, thereby contributing to an increase in calculation accuracy.
Step S302: calculating the total diffusion quantity M of the exhaust gas in unit time according to the second exhaust gas dataTD。
Specifically, the calculation module is used for calculating the concentration data C of the exhaust gas according to the second exhaust gas data2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe method specifically comprises the following steps: according to exhaust gas concentration data C2Determining the exhaust gas concentration variation DeltaC per unit time2According to the change value deltaC of the exhaust gas concentration per unit time2Calculating the total amount M of exhaust gas diffusion per unit timeTD. Exhaust gas concentration change value Δ C per unit time2Two exhaust gas concentration data C may be acquired per unit time by the second sensor 302And by calculating two exhaust gas concentration data C2The difference of (a) is obtained. By exhaust gas concentration data C2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe formula of (1) is as follows:
MTD＝ΔC2*V
where V is the equivalent volume of exhaust gas diffusion per unit time. The equivalent volume V of the exhaust gas diffusion per unit time can be determined by any one of numerical simulation, experimental evaluation, and theoretical calculation. It should be understood that the equivalent exhaust gas diffusion volume per unit time V can be determined in other ways, and any other method capable of calculating the equivalent exhaust gas diffusion volume per unit time V can be used to calculate the total amount of exhaust gas diffusion M per unit time according to the present inventionTD。
Step S303: according to the total mass M of the exhaust gas collected in unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta.
Specifically, the calculation module calculates the total mass M of the exhaust gas collected per unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta. The calculation formula is as follows:
Figure BDA0002821750460000091
wherein M isTCIs the total mass of exhaust gas collected per unit time, MTDIs the total amount of exhaust gas diffused per unit time.
It should be understood that, when step S30 is executed, the order of step S301 and step S302 may be changed, step S301 may be executed first and step S302 may be executed second, step S302 may be executed first and step S301 may be executed second, or step S301 and step S302 may be executed simultaneously.
In some embodiments, the exhaust gas concentration C1Exhaust gas flow velocity V1And exhaust gas concentration C2The method has the advantages that the real-time monitoring data are adopted to calculate the waste gas collecting efficiency eta, so that a user can obtain the current actual waste gas collecting efficiency condition, and when the waste gas collecting efficiency is abnormal, the method is favorable for the user to take measures to correct in time, and the environment is prevented from being polluted due to the abnormal waste gas collecting.
The method for evaluating the exhaust gas collection efficiency obtains the first exhaust gas data on the exhaust gas collection flow path R, obtains the second exhaust gas data near the exhaust gas source 01, and calculates the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data, and has the advantages that: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.
Referring to fig. 3, an embodiment of an exhaust collection efficiency evaluation apparatus includes: a first sensor 20, a second sensor 30 and a calculation module (not shown).
The first sensor 20 is provided on the exhaust gas collecting flow path R for acquiring first exhaust gas data for calculating the total mass M of exhaust gas collected per unit timeTCBy acquiring the first exhaust gas data on the exhaust gas collecting flow path R, it is advantageous to acquire the more accurate first exhaust gas data.
In some embodiments, referring to fig. 4, the first sensor 20 is disposed in the exhaust gas collecting port 10, the exhaust gas collecting port 10 is used as a collecting channel for collecting the exhaust gas, and the first sensor 20 is disposed in the exhaust gas collecting port 10 for obtaining the first exhaust gas data, so that the accuracy of the first exhaust gas data can be greatly improved, and the accuracy of the exhaust gas collecting efficiency η can be further improved.
In some embodiments, the first exhaust data includes at least exhaust concentration data C1And exhaust gas flow rate data V1Exhaust gas concentration data C1And exhaust gas flow rate data V1For calculating the total mass M of exhaust gas collected per unit timeTCIs obtained by the first sensor 20 on the exhaust gas collecting flow path.
The second sensor 30 is provided near the exhaust gas source for acquiring second exhaust gas data for calculating the total amount of exhaust gas diffusion M per unit timeTDAnd the second exhaust gas data is acquired near the exhaust gas source, so that the more accurate second exhaust gas data can be acquired.
Preferably, the second sensor 30 is disposed in a sensitive diffusion area B near the exhaust gas source 01, the exhaust gas has a uniform diffusion characteristic in the sensitive diffusion area B, and the second exhaust gas data is acquired in the sensitive diffusion area B, so that the accuracy of the second exhaust gas data is improved, and the accuracy of the exhaust gas collection efficiency η is improved.
In some embodiments, the second exhaust gas data includes at least exhaust gas concentration data C2. Exhaust gas concentration data C2As a total amount M of exhaust gas diffused per unit timeTDBy obtaining exhaust gas concentration data C in the second exhaust gas data2For calculating the total amount of exhaust gas diffusion M per unit timeTD。
A calculation module (not shown) electrically connected to the first sensor 20 and the second sensor 30, wherein the calculation module can calculate the exhaust gas collection efficiency η according to the first exhaust gas data and the second exhaust gas data.
Specifically, the calculation module can calculate the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCThe total amount M of the exhaust gas diffusion in unit time can be calculated according to the second exhaust gas dataTDAnd according to the total mass M of exhaust gas collected per unit timeTCAnd total amount of exhaust gas diffused M per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
Further, the calculation module utilizes the exhaust gas concentration data C in the first exhaust gas data1And exhaust gas flow rate data V1Calculating the total mass M of the exhaust gas collected in unit timeTCThe formula of (1) is:
Figure BDA0002821750460000111
wherein the content of the first and second substances,
Figure BDA0002821750460000112
to pass through C1The calculated average exhaust gas concentration per unit time can be obtained by acquiring a plurality of exhaust gas concentration data C per unit time1And for a plurality of exhaust gas concentration data C1And calculating the average value after summing.
Figure BDA0002821750460000113
To pass through V1The calculated average exhaust gas flow rate per unit time can be obtained by acquiring a plurality of exhaust gas flow rate data V per unit time1And for a plurality of exhaust gas flow rate data V1And calculating the average value after summing. S is a cross-sectional area of the exhaust gas collecting flow path R at the position of the first sensor 10, and can be obtained by measurement. Preferably, when the first sensor 10 is disposed in the exhaust gas collection port, S is the cross-sectional area of the exhaust gas collection port 10, and the shaped exhaust gas collection port 10 is more than the non-shaped exhaust gas collection flow path RThe cross-sectional area is easy to measure and calculate, thereby being beneficial to improving the calculation accuracy.
The calculation module is used for calculating the concentration data C of the exhaust gas in the second exhaust gas data2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe method specifically comprises the following steps: according to exhaust gas concentration data C2Determining the exhaust gas concentration variation DeltaC per unit time2According to the change value deltaC of the exhaust gas concentration per unit time2Calculating the total amount M of exhaust gas diffusion per unit timeTD. Exhaust gas concentration change value Δ C per unit time2Two exhaust gas concentration data C may be acquired per unit time by the second sensor 302By calculating two exhaust gas concentration data C2The difference of (a) is obtained. By exhaust gas concentration data C2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe formula of (1) is as follows:
MTD＝ΔC2*V
where V is the equivalent volume of exhaust gas diffusion per unit time. The equivalent volume V of the exhaust gas diffusion per unit time can be determined by any one of numerical simulation, experimental evaluation, and theoretical calculation. It should be understood that the equivalent exhaust gas diffusion volume per unit time V can be determined in other ways, and any other method capable of calculating the equivalent exhaust gas diffusion volume per unit time V can be used to calculate the total amount of exhaust gas diffusion M per unit time according to the present inventionTD。
The calculation module is used for calculating the total mass M of the waste gas collected in unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta. The calculation formula is as follows:
Figure BDA0002821750460000121
wherein M isTCIs the total mass of exhaust gas collected per unit time, MTDIs the total amount of exhaust gas diffused per unit time.
In some embodiments, the exhaust gas concentration C1Exhaust gas flow velocity V1And exhaust gas concentration C2For monitoring data in real time, real time is adoptedMonitoring data calculates waste gas collection efficiency eta, so that a user can obtain the current actual waste gas collection efficiency situation, and when the waste gas collection efficiency is abnormal, the user can take measures to correct the waste gas collection efficiency situation in time, and the environment pollution caused by the abnormal waste gas collection is avoided.
Above-mentioned exhaust gas collection efficiency evaluation device, through gathering at the exhaust gas and flowing through on route R and acquireing first exhaust gas data, acquireing the second exhaust gas data near exhaust gas source 01 to according to first exhaust gas data and second exhaust gas data calculation exhaust gas collection efficiency eta, its beneficial effect is: the operability is strong, and the waste gas collecting efficiency can be calculated, so that a data basis is provided for evaluating the waste gas collecting efficiency of the waste gas collecting equipment.
Referring to fig. 5, an embodiment of an exhaust gas collecting apparatus includes: an exhaust gas collection port 10, a first sensor 20, a second sensor 30, and a calculation module (not shown).
An exhaust gas collection port 10 is provided near the exhaust gas source 01 for collecting the exhaust gas.
The first sensor 20 is provided on the exhaust gas collecting flow path R for acquiring first exhaust gas data for calculating the total mass M of exhaust gas collected per unit timeTCBy acquiring the first exhaust gas data on the exhaust gas collecting flow path R, it is advantageous to acquire the more accurate first exhaust gas data.
Preferably, referring to fig. 6, the first sensor 20 is disposed in the exhaust gas collecting port 10, the exhaust gas collecting port 10 is used as a collecting channel for collecting the exhaust gas, and the first sensor 20 is disposed in the exhaust gas collecting port 10 and is used for acquiring the first exhaust gas data, so that the accuracy of the first exhaust gas data can be greatly improved, and the accuracy of the exhaust gas collecting efficiency η is further improved.
In some embodiments, the first exhaust data includes at least exhaust concentration data C1And exhaust gas flow rate data V1Exhaust gas concentration data C1And exhaust gas flow rate data V1For calculating the total mass M of exhaust gas collected per unit timeTCIs obtained by the first sensor 20 on the exhaust gas collecting flow path.
The second sensor 30 is disposed at the wasteNear the gas source for obtaining second exhaust gas data, which is used for calculating total exhaust gas diffusion M in unit timeTDAnd the second exhaust gas data is acquired near the exhaust gas source, so that the more accurate second exhaust gas data can be acquired.
Preferably, referring to fig. 6, the second sensor 30 is disposed in the sensitive diffusion area B near the exhaust gas source 01, and since the exhaust gas has a uniform diffusion characteristic in the sensitive diffusion area B, the accuracy of the second exhaust gas data is improved by acquiring the second exhaust gas data in the sensitive diffusion area B, so as to improve the accuracy of the exhaust gas collection efficiency η.
In some embodiments, the second exhaust gas data includes at least exhaust gas concentration data C2. Exhaust gas concentration data C2As a total amount M of exhaust gas diffused per unit timeTDBy obtaining exhaust gas concentration data C in the second exhaust gas data2For calculating the total amount of exhaust gas diffusion M per unit timeTD。
A calculation module (not shown) electrically connected to the first sensor 20 and the second sensor 30, wherein the calculation module can calculate the exhaust gas collection efficiency η according to the first exhaust gas data and the second exhaust gas data.
Specifically, the calculation module can calculate the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCThe total amount M of the exhaust gas diffusion in unit time can be calculated according to the second exhaust gas dataTDAnd according to the total mass M of exhaust gas collected per unit timeTCAnd total amount of exhaust gas diffused M per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
Further, the calculation module utilizes the exhaust gas concentration data C in the first exhaust gas data1And exhaust gas flow rate data V1Calculating the total mass M of the exhaust gas collected in unit timeTCThe formula of (1) is:
Figure BDA0002821750460000131
wherein the content of the first and second substances,
Figure BDA0002821750460000132
to pass through C1The calculated average exhaust gas concentration per unit time can be obtained by acquiring a plurality of exhaust gas concentration data C per unit time1And for a plurality of exhaust gas concentration data C1And calculating the average value after summing.
Figure BDA0002821750460000141
To pass through V1The calculated average exhaust gas flow rate per unit time can be obtained by acquiring a plurality of exhaust gas flow rate data V per unit time1And for a plurality of exhaust gas flow rate data V1And calculating the average value after summing. S is a cross-sectional area of the exhaust gas collecting flow path R at the position of the first sensor 10, and can be obtained by measurement. Preferably, when the first sensor 10 is disposed in the exhaust gas collection port, S is the cross-sectional area of the exhaust gas collection port 10, and the tangible exhaust gas collection port 10 is easier to measure and calculate than the intangible exhaust gas collection flow path R, thereby contributing to an increase in calculation accuracy.
The calculation module is used for calculating the concentration data C of the exhaust gas in the second exhaust gas data2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe method specifically comprises the following steps: according to exhaust gas concentration data C2Determining the exhaust gas concentration variation DeltaC per unit time2According to the change value deltaC of the exhaust gas concentration per unit time2Calculating the total amount M of exhaust gas diffusion per unit timeTD. Exhaust gas concentration change value Δ C per unit time2Two exhaust gas concentration data C may be acquired per unit time by the second sensor 302By calculating two exhaust gas concentration data C2The difference of (a) is obtained. By exhaust gas concentration data C2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe formula of (1) is as follows:
MTD＝ΔC2*V
where V is the equivalent volume of exhaust gas diffusion per unit time. The equivalent volume V of the exhaust gas diffusion per unit time can be determined by any one of numerical simulation, experimental evaluation, and theoretical calculation.
The calculation module is used for calculating the total mass M of the waste gas collected in unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta. The calculation formula is as follows:
Figure BDA0002821750460000142
wherein M isTCIs the total mass of exhaust gas collected per unit time, MTDIs the total amount of exhaust gas diffused per unit time.
In some embodiments, the exhaust gas concentration C1Exhaust gas flow velocity V1And exhaust gas concentration C2The method has the advantages that the real-time monitoring data are adopted to calculate the waste gas collecting efficiency eta, so that a user can obtain the current actual waste gas collecting efficiency condition, and when the waste gas collecting efficiency is abnormal, the method is favorable for the user to take measures to correct in time, and the environment is prevented from being polluted due to the abnormal waste gas collecting.
The exhaust gas collecting device comprises an exhaust gas collecting port 10, a first sensor 20, a second sensor 30 and a calculating module, wherein the first sensor 20 is used for acquiring first exhaust gas data, the second sensor 30 is used for acquiring second exhaust gas data, and the calculating module is used for calculating exhaust gas collecting efficiency eta according to the first exhaust gas data and the second exhaust gas data. The beneficial effects are as follows: the exhaust gas collection efficiency can be calculated while collecting the exhaust gas, thereby providing a data basis for evaluating the exhaust gas collection efficiency of the exhaust gas collection device.
Referring to fig. 7, a data processing method according to an embodiment includes the following steps:
step S01: first exhaust data and second exhaust data are received.
Specifically, the data processing device receives first exhaust gas data and second exhaust gas data, the first exhaust gas data is acquired from the exhaust gas collection flow path R by the first sensor 20, the second exhaust gas data is acquired from the vicinity of the exhaust gas source by the second sensor 30, and the first exhaust gas data is acquired from the exhaust gas collection flow path R and the second exhaust gas data is acquired from the vicinity of the exhaust gas source, so that the first exhaust gas data and the second exhaust gas data which are more accurate are acquired.
Preferably, the first exhaust data is obtained from the exhaust gas collecting port 10, the exhaust gas collecting port 10 is used as a gathering channel for collecting the exhaust gas, and the first exhaust data is obtained from the exhaust gas collecting port 10, so that the accuracy of the first exhaust data can be greatly improved.
In some embodiments, the first exhaust data includes at least exhaust concentration data C1And exhaust gas flow rate data V1Two data, exhaust gas concentration data C1And exhaust gas flow rate data V1As a total mass M of exhaust gas collected per unit timeTCIs obtained on the exhaust gas collecting flow path R by the first sensor 20.
Preferably, the second sensor 30 is disposed in the sensitive diffusion area B near the exhaust gas source 01, and since the exhaust gas has a uniform diffusion characteristic in the sensitive diffusion area B, the accuracy of the second exhaust gas data is improved by acquiring the second exhaust gas data in the sensitive diffusion area B, so that the accuracy of the exhaust gas collection efficiency η is improved.
In some embodiments, the second exhaust gas data includes at least exhaust gas concentration data C2. Exhaust gas concentration data C2As a total amount M of exhaust gas diffused per unit timeTDIs used for calculating the total amount of exhaust gas diffusion M per unit timeTD。
Step S03: and calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data.
Referring to fig. 8, step S03 further includes step S031, step S032 and step S033.
Step S031: calculating the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTC。
Specifically, the calculation module is used for calculating the concentration data C of the exhaust gas1And exhaust gas flow rate data V1Calculating the total mass M of the exhaust gas collected in unit timeTCThe calculation formula is as follows:
Figure BDA0002821750460000161
wherein the content of the first and second substances,
Figure BDA0002821750460000162
to pass through C1The calculated average exhaust gas concentration per unit time can be obtained by acquiring a plurality of exhaust gas concentration data C per unit time1And for a plurality of exhaust gas concentration data C1And calculating the average value after summing.
Figure BDA0002821750460000163
To pass through V1The calculated average exhaust gas flow rate per unit time can be obtained by acquiring a plurality of exhaust gas flow rate data V per unit time1And for a plurality of exhaust gas flow rate data V1And calculating the average value after summing. S is a cross-sectional area of the exhaust gas collecting flow path R at the position of the first sensor 10, and can be obtained by measurement. Preferably, when the first sensor 20 is disposed in the exhaust gas collection port, S is the cross-sectional area of the exhaust gas collection port 10, and the tangible exhaust gas collection port 10 is easier to measure and calculate than the intangible exhaust gas collection flow path R, thereby contributing to an increase in calculation accuracy.
Step S032: calculating the total diffusion quantity M of the exhaust gas in unit time according to the second exhaust gas dataTD。
Specifically, the calculation module is used for calculating the concentration data C of the exhaust gas according to the second exhaust gas data2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe method specifically comprises the following steps: according to exhaust gas concentration data C2Determining the exhaust gas concentration variation DeltaC per unit time2According to the change value deltaC of the exhaust gas concentration per unit time2Calculating the total amount M of exhaust gas diffusion per unit timeTD. Exhaust gas concentration change value Δ C per unit time2Two exhaust gas concentration data C may be acquired per unit time by the second sensor 302And by calculating two exhaust gas concentration data C2The difference of (a) is obtained. By exhaust gas concentration data C2Calculating the total amount M of exhaust gas diffusion in unit timeTDFormula (2)The following were used:
MTD＝ΔC2*V
where V is the equivalent volume of exhaust gas diffusion per unit time. The equivalent volume V of the exhaust gas diffusion per unit time can be determined by any one of numerical simulation, experimental evaluation, and theoretical calculation. It should be understood that the equivalent exhaust gas diffusion volume per unit time V can be determined in other ways, and any other method capable of calculating the equivalent exhaust gas diffusion volume per unit time V can be used to calculate the total amount of exhaust gas diffusion M per unit time according to the present inventionTD。
Step S033: according to the total mass M of the exhaust gas collected in unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta.
Specifically, the calculation module calculates the total mass M of the exhaust gas collected per unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta. The calculation formula is as follows:
Figure BDA0002821750460000171
wherein M isTCIs the total mass of exhaust gas collected per unit time, MTDIs the total amount of exhaust gas diffused per unit time.
In some embodiments, the exhaust gas concentration C1Exhaust gas flow velocity V1And exhaust gas concentration C2The method has the advantages that the real-time monitoring data are adopted to calculate the waste gas collecting efficiency eta, so that a user can obtain the current actual waste gas collecting efficiency condition, and when the waste gas collecting efficiency is abnormal, the method is favorable for the user to take measures to correct in time, and the environment is prevented from being polluted due to the abnormal waste gas collecting.
The data processing method has the advantages that the first exhaust gas data obtained on the exhaust gas collecting flow path R and the second exhaust gas data obtained near the exhaust gas source 01 are received, and the exhaust gas collecting efficiency eta is calculated according to the first exhaust gas data and the second exhaust gas data: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.
Referring to fig. 9, a data processing apparatus 400 according to an embodiment includes a first receiving module 410, a second receiving module 420, and a calculating module 430.
The first receiving module 410 is configured to receive first exhaust data obtained by the first sensor 20 disposed on the exhaust collecting flow path R. Through acquireing first exhaust data on route R is flowed through in the exhaust-gas collection, can ensure that first exhaust data has higher accuracy, and then help improving the accuracy of exhaust-gas collection efficiency eta.
Preferably, the first sensor 20 is disposed in the exhaust gas collecting port 10, and the exhaust gas collecting port 10 is used as a gathering channel for collecting exhaust gas, so as to obtain the first exhaust gas data in the exhaust gas collecting port 10, thereby greatly improving the accuracy of the first exhaust gas data.
In some embodiments, the first exhaust data includes at least exhaust concentration data C1And exhaust gas flow rate data V1Two data, exhaust gas concentration data C1And exhaust gas flow rate data V1As a total mass M of exhaust gas collected per unit timeTCIs obtained by the first sensor 20 on the exhaust gas collecting flow path.
And a second receiving module 420 for receiving second exhaust gas data, wherein the second exhaust gas data is obtained by a second sensor 30 disposed near the exhaust gas source.
Preferably, the second sensor 30 is disposed in the sensitive diffusion area B near the exhaust gas source 01, and since the exhaust gas has a uniform diffusion characteristic in the sensitive diffusion area B, the accuracy of the second exhaust gas data is improved by acquiring the second exhaust gas data in the sensitive diffusion area B, so that the accuracy of the exhaust gas collection efficiency η is improved.
In some embodiments, the second exhaust gas data includes at least exhaust gas concentration data C2. Exhaust gas concentration data C2As a total amount M of exhaust gas diffused per unit timeTDIs used for calculating the total amount of exhaust gas diffusion M per unit timeTD。
And the calculating module 430 is electrically connected with the first receiving module and the second receiving module, and is used for calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data.
Specifically, the calculation module is used for calculating the concentration data C of the exhaust gas1And exhaust gas flow rate data V1Calculating the total mass M of the exhaust gas collected in unit timeTCCalculating the total amount of exhaust diffusion M per unit time based on the second exhaust dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta.
The calculation module is used for calculating the concentration data C of the exhaust gas1And exhaust gas flow rate data V1Calculating the total mass M of the exhaust gas collected in unit timeTCThe calculation formula is as follows:
Figure BDA0002821750460000181
wherein the content of the first and second substances,
Figure BDA0002821750460000182
to pass through C1The calculated average exhaust gas concentration per unit time can be obtained by acquiring a plurality of exhaust gas concentration data C per unit time1And for a plurality of exhaust gas concentration data C1And calculating the average value after summing.
Figure BDA0002821750460000183
To pass through V1The calculated average exhaust gas flow rate per unit time can be obtained by acquiring a plurality of exhaust gas flow rate data V per unit time1And for a plurality of exhaust gas flow rate data V1And calculating the average value after summing. S is a cross-sectional area of the exhaust gas collecting flow path R, which can be obtained by measurement. Preferably, when the exhaust gas collecting flow path R is located in the exhaust gas collecting port, S is the cross-sectional area of the exhaust gas collecting port 10, and the tangible exhaust gas collecting port 10 is easier to measure and calculate the cross-sectional area than the intangible exhaust gas collecting flow path RThereby contributing to improvement of calculation accuracy.
The calculation module is used for calculating the concentration data C of the exhaust gas in the second exhaust gas data2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe method specifically comprises the following steps: according to exhaust gas concentration data C2Determining the exhaust gas concentration variation DeltaC per unit time2According to the change value deltaC of the exhaust gas concentration per unit time2Calculating the total amount M of exhaust gas diffusion per unit timeTD. Exhaust gas concentration change value Δ C per unit time2Two exhaust gas concentration data C may be acquired per unit time by the second sensor 302And by calculating two exhaust gas concentration data C2The difference of (a) is obtained. By exhaust gas concentration data C2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe formula of (1) is as follows:
MTD＝ΔC2*V
where V is the equivalent volume of exhaust gas diffusion per unit time. The equivalent volume V of the exhaust gas diffusion per unit time can be determined by any one of numerical simulation, experimental evaluation, and theoretical calculation. It should be understood that the equivalent exhaust gas diffusion volume per unit time V can be determined in other ways, and any other method capable of calculating the equivalent exhaust gas diffusion volume per unit time V can be used to calculate the total amount of exhaust gas diffusion M per unit time according to the present inventionTD。
The calculation module is used for calculating the total mass M of the waste gas collected in unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta. The calculation formula is as follows:
Figure BDA0002821750460000191
wherein M isTCIs the total mass of exhaust gas collected per unit time, MTDIs the total amount of exhaust gas diffused per unit time.
In some embodiments, the exhaust gas concentration C1Exhaust gas flow velocity V1And exhaust gas concentration C2For real-time monitoring of the data, the real-time monitoring data is used to calculate the exhaust gas collection efficiencyThe rate eta can enable a user to obtain the current actual waste gas collection efficiency condition, and when the waste gas collection efficiency is abnormal, the method is beneficial for the user to take measures in time to correct and modify, thereby avoiding the pollution of the waste gas collection abnormality to the environment.
The data processing apparatus 400 receives the first exhaust data through the first receiving module 410, receives the second exhaust data through the second receiving module 420, and calculates the exhaust collection efficiency η according to the first exhaust data and the second exhaust data through the calculating module 430, which has the following beneficial effects: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.
Referring to fig. 10, a data processing apparatus 500 according to another embodiment includes a processor 510 and a memory 520, wherein the processor 510 is communicatively connected to the memory 520, and one or more computer programs are stored in the memory 520.
Among other things, processor 510 may include at least one of the following types: a general purpose Central Processing Unit (CPU), a Digital Signal Processor (DSP), a microprocessor, an Application Specific Integrated Circuit (ASIC), a Microcontroller (MCU), a Field Programmable Gate Array (FPGA), or an integrated circuit for implementing logical operations. For example, the processor 510 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The multiple processors or units included within processor 510 may be integrated in one chip or located on multiple different chips.
Memory 520 may be a nonvolatile Memory such as an EMMC (Embedded Multi media card), an UFS (Universal Flash Storage) or a Read-Only Memory (ROM), and optionally Memory 520 may include other types of static Storage devices capable of storing static information and instructions, a nonvolatile Memory such as a Random Access Memory (RAM) or other types of dynamic Storage devices capable of storing information and instructions, an Electrically erasable programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc Storage, optical Disc Storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, optical Disc, etc.), a Storage medium, or other magnetic Storage devices, Or any other computer-readable storage medium that can be used to carry or store program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such.
The computer program comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the method embodiments above. The computer program product may be a software installation package, the computer comprising an electronic device.
Embodiments of the present application also provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, the computer program enables a computer to execute part or all of the steps of any one of the methods as described in the above method embodiments, and the computer includes an electronic device.
Specific examples are as follows.
Example 1
Referring to fig. 1, 2 and 3, the method for evaluating the exhaust gas collection efficiency includes the following steps:
(1) acquiring first exhaust gas data and second exhaust gas data;
first exhaust gas data are acquired by a first sensor 20 arranged on the exhaust gas collecting flow path R, wherein the first exhaust gas data comprise at least exhaust gas concentration data C1And exhaust gas flow rate data V1。
Second exhaust gas data, which at least comprise exhaust gas concentration data C, are acquired by means of a second sensor 30 arranged in the vicinity of the exhaust gas source 012。
(2) And calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data.
The calculation module calculates the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCBased on the second exhaust gas dataCalculating the total amount M of exhaust gas diffusion in unit timeTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd total amount of exhaust gas diffusion M per unit timeTDAnd calculating the waste gas collection efficiency eta.
The method for evaluating the exhaust gas collection efficiency obtains the first exhaust gas data on the exhaust gas collection flow path R, obtains the second exhaust gas data near the exhaust gas source 01, and calculates the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data, and has the advantages that: the operability is strong, and the efficiency of collecting the waste gas can be quantitatively evaluated, so that a reliable evaluation standard is provided for judging the efficiency of collecting the waste gas.
The present embodiment further provides an exhaust collection efficiency evaluation apparatus, referring to fig. 3, which includes a first sensor 20, a second sensor 30 and a calculation module (not shown).
The first sensor 20 is disposed on the exhaust gas collecting flow path R for obtaining first exhaust gas data, in this embodiment, the first sensor 20 is disposed between the exhaust gas collecting port 10 and the exhaust gas source 01, and the first exhaust gas data at least includes exhaust gas concentration data C1And exhaust gas flow rate data V1。
The second sensor 30 is disposed near the exhaust source 01 for obtaining second exhaust data, in this embodiment, the second sensor 30 is disposed outside the sensitive diffusion area B, and the second exhaust data at least includes exhaust concentration data C2。
A calculation module electrically connected to the first sensor 20 and the second sensor 30, wherein the calculation module can calculate the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total diffusion quantity M of the exhaust gas in unit time according to the second exhaust gas dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd total amount of exhaust gas diffused M per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
The exhaust gas collection efficiency evaluation device comprises a first sensor 20, a second sensor 30 and a calculation module, wherein the first sensor 20 is used for collecting first exhaust gas data on an exhaust gas collection flow path R, the second sensor 30 is used for collecting second exhaust gas data near an exhaust gas source 01, and the calculation module is used for calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data. The beneficial effects are as follows: the exhaust gas collection efficiency can be calculated, thereby providing a data basis for evaluating the exhaust gas collection efficiency of the exhaust gas collection device.
Referring to fig. 5, the present embodiment further provides an exhaust gas collecting device, which includes an exhaust gas collecting port 10, a first sensor 20, a second sensor 30, and a calculating module (not shown).
And the waste gas collecting port 10 is arranged near the waste gas source 01 and is used for collecting waste gas.
The first sensor 20 is disposed on the exhaust gas collecting flow path R for acquiring first exhaust gas data, and in this embodiment, the first sensor 20 is disposed between the exhaust gas collecting port 10 and the exhaust gas source 01.
A second sensor 30 is disposed proximate the exhaust source 01 for acquiring second exhaust data, in this embodiment, the second sensor 30 is disposed outside the sensitive diffusion area B.
A calculation module electrically connected to the first sensor 20 and the second sensor 30, wherein the calculation module can calculate the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total diffusion quantity M of the exhaust gas in unit time according to the second exhaust gas dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd total amount of exhaust gas diffused M per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
The exhaust gas collecting device comprises an exhaust gas collecting port 10, a first sensor 20, a second sensor 30 and a calculating module, wherein the first sensor 20 is used for collecting first exhaust gas data on an exhaust gas collecting flow path R, the second sensor 30 is used for collecting second exhaust gas data near an exhaust gas source 01, and the calculating module is used for calculating exhaust gas collecting efficiency eta according to the first exhaust gas data and the second exhaust gas data. The beneficial effects are as follows: the exhaust gas collection efficiency can be calculated while collecting the exhaust gas, thereby providing a data basis for evaluating the exhaust gas collection efficiency of the exhaust gas collection device.
Example 2
Referring to fig. 1, 2 and 4, the steps of the method for evaluating the exhaust gas collection efficiency provided in this embodiment are similar to those of embodiment 1, except that the first exhaust gas data is obtained from the exhaust gas collection port 10.
According to the method for evaluating the waste gas collecting efficiency, the waste gas collecting port 10 is used as a gathering channel for collecting waste gas, first waste gas data are obtained in the waste gas collecting port 10, the accuracy of the first waste gas data can be greatly improved, and the accuracy of the waste gas collecting efficiency eta is further improved.
The present embodiment further provides an exhaust collection efficiency evaluation apparatus, please refer to fig. 4, which is similar to the exhaust collection efficiency evaluation apparatus provided in embodiment 1, except that the first sensor 20 is disposed in the exhaust collection port 10.
Above-mentioned waste gas collection efficiency evaluation device, waste gas are collected mouthful 10 and are acquireed first waste gas data as the passageway that assembles that waste gas was collected in waste gas collection mouthful 10, can improve the accuracy of first waste gas data by a wide margin, and then are favorable to improving the accuracy of waste gas collection efficiency eta.
Referring to fig. 6, the present embodiment further provides an exhaust gas collecting device, which is similar to the exhaust gas collecting device provided in embodiment 1, except that the first sensor 20 is disposed in the exhaust gas collecting port 10.
Above-mentioned exhaust gas collection device, waste gas are collected mouthful 10 and are acquireed first waste gas data as the passageway that assembles that waste gas was collected in waste gas collection mouthful 10, can improve the accuracy of first waste gas data by a wide margin, and then are favorable to improving the accuracy of waste gas collection efficiency eta.
Example 3
Referring to fig. 1, 2 and 4, the steps of an exhaust gas collection efficiency evaluation method provided in this embodiment are similar to those of embodiment 2, except that the second exhaust gas data is obtained from the sensitive diffusion area B.
According to the method for evaluating the waste gas collection efficiency, the second waste gas data is obtained from the sensitive diffusion area B, and the waste gas has the characteristic of uniform diffusion in the sensitive diffusion area B, so that the second waste gas data can be obtained more accurately, and the accuracy of the waste gas collection efficiency eta is improved.
This embodiment also provides an exhaust gas collection efficiency evaluation device, please refer to fig. 4, which is similar to the exhaust gas collection efficiency evaluation device provided in embodiment 2, except that the second exhaust gas data is obtained from the sensitive diffusion area B.
Above-mentioned exhaust gas collection efficiency evaluation device, second exhaust gas data are obtained from sensitive diffusion zone B, because exhaust gas has the characteristic of even diffusion at sensitive diffusion zone B, obtain second exhaust gas data at this position, can obtain more accurate second exhaust gas data, and then are favorable to improving the accuracy of exhaust gas collection efficiency eta.
The present embodiment further provides an exhaust gas collecting device, referring to fig. 6, which is similar to the exhaust gas collecting device provided in embodiment 2, except that the second sensor 30 is disposed in the sensitive diffusion region B.
Above-mentioned exhaust gas collection device, second exhaust gas data are obtained from sensitive diffusion zone B, because exhaust gas has the characteristic of even diffusion at sensitive diffusion zone B, obtain second exhaust gas data at this position, can obtain more accurate second exhaust gas data, and then are favorable to improving the accuracy of exhaust gas collection efficiency eta.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (32)

1. An exhaust gas collection efficiency evaluation method characterized by comprising the steps of:
acquiring first exhaust gas data and second exhaust gas data, wherein the first exhaust gas data is acquired from an exhaust gas collecting flow path, and the second data is acquired from the vicinity of an exhaust gas source;
and calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data.
2. The exhaust gas collection efficiency evaluation method according to claim 1, wherein the step of calculating the exhaust gas collection efficiency η from the first exhaust gas data and the second exhaust gas data is embodied as:
calculating the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total amount of exhaust diffusion M per unit time based on the second exhaust dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDAnd calculating the waste gas collection efficiency eta.
3. The exhaust gas collection efficiency evaluation method according to claim 2, wherein the first exhaust gas data is acquired from within an exhaust gas collection port.
4. The exhaust gas collection efficiency evaluation method according to claim 3, characterized in that the first exhaust gas data includes at least exhaust gas concentration data C1And exhaust gas flow rate data V1。
5. The exhaust gas collection efficiency evaluation method according to claim 4, characterized in that the total mass M of exhaust gas collected per unit time is calculated from the first exhaust gas dataTCThe concrete formula of the steps is as follows:
Figure FDA0002821750450000011
wherein, the
Figure FDA0002821750450000012
Is the average exhaust gas concentration per unit time, said
Figure FDA0002821750450000013
Is the average exhaust gas per unit timeA flow velocity, S being a cross-sectional area of a path through which the exhaust gas is collected to flow.
6. The exhaust gas collection efficiency evaluation method according to claim 2, wherein the second exhaust gas data is obtained from a sensitive diffusion area.
7. The exhaust gas collection efficiency evaluation method according to claim 6, characterized in that the second exhaust gas data includes at least exhaust gas concentration data C2。
8. The exhaust gas collection efficiency evaluation method according to claim 7, characterized in that the total amount of exhaust gas diffusion M per unit time is calculated from the second exhaust gas dataTDThe method comprises the following specific steps:
according to the exhaust gas concentration data C2Determining the exhaust gas concentration variation DeltaC per unit time2According to the change value deltaC of the exhaust gas concentration per unit time2Calculating the total amount M of exhaust gas diffusion in the unit timeTD。
9. The exhaust gas collection efficiency evaluation method according to claim 8, characterized in that the change value Δ C in accordance with the exhaust gas concentration per unit time is set2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe calculation formula of the steps is as follows:
MTD＝ΔC2*V
wherein V is the equivalent volume of exhaust gas diffusion per unit time.
10. The exhaust gas collection efficiency evaluation method according to claim 9, wherein the equivalent volume V of exhaust gas diffusion per unit time is determined by any one of numerical simulation, experimental evaluation, or theoretical calculation.
11. The exhaust gas collection efficiency evaluation method according to any one of claims 1 to 10, characterized in that the exhaust gas collection efficiency is evaluatedAccording to the total mass M of the waste gas collected in the unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDThe calculation formula of the step of calculating the waste gas collection efficiency eta is as follows:
Figure FDA0002821750450000021
12. the exhaust gas collection efficiency evaluation method according to claim 11, characterized in that the exhaust gas concentration C1Said exhaust gas flow velocity V1And the exhaust gas concentration C2The data is monitored in real time.
13. An exhaust gas collection efficiency evaluation device characterized by comprising:
the first sensor is used for acquiring first exhaust data on an exhaust gas collecting flow path;
a second sensor for acquiring second exhaust data proximate the exhaust source; and
the calculation module is simultaneously electrically connected with the first sensor and the second sensor, and the calculation module calculates the waste gas collection efficiency eta according to the first waste gas data and the second waste gas data.
14. The exhaust gas collection efficiency evaluation device according to claim 13, wherein the calculation module calculates the exhaust gas collection efficiency η based on the first exhaust gas data and the second exhaust gas data, specifically:
the calculation module calculates and obtains total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total diffusion quantity M of the exhaust gas in unit time according to the second exhaust gas dataTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
15. The exhaust gas collection efficiency evaluation device according to claim 14, wherein the first sensor is provided in an exhaust gas collection port.
16. The exhaust gas collection efficiency evaluation device according to claim 15, wherein the second sensor is provided in a sensitive diffusion region.
17. The exhaust gas collection efficiency evaluation device according to claim 14, characterized in that the first exhaust gas data includes at least exhaust gas concentration data C1And exhaust gas flow rate data V1。
18. The exhaust gas collection efficiency evaluation device according to claim 17, characterized in that the second exhaust gas data includes at least exhaust gas concentration data C2。
19. An exhaust gas collection device, comprising:
the waste gas collecting port is arranged near the waste gas source and used for collecting waste gas;
the first sensor is arranged on the exhaust gas collecting flow path and used for acquiring first exhaust gas data;
the second sensor is arranged near the exhaust gas source and used for acquiring second exhaust gas data; and
the calculation module is simultaneously electrically connected with the first sensor and the second sensor, and the calculation module calculates the waste gas collection efficiency eta according to the first waste gas data and the second waste gas data.
20. The exhaust gas collection device according to claim 19, wherein the calculation module calculates an exhaust gas collection efficiency η based on the first exhaust gas data and the second exhaust gas data by:
the calculation module calculates and obtains total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCAccording to the second exhaust gasThe total amount M of the exhaust gas diffusion in unit time is obtained through data calculationTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
21. The exhaust collection device of claim 20, wherein the first sensor is disposed within the exhaust collection port.
22. The exhaust gas collection device of claim 21, wherein the second sensor is located in a sensitive diffusion region.
23. The exhaust gas collection device of claim 20, wherein the first exhaust gas data includes at least exhaust gas concentration data C1And exhaust gas flow rate data V1。
24. The exhaust gas collection device of claim 23, wherein the second exhaust gas data includes at least exhaust gas concentration data C2。
25. A data processing method, comprising the steps of:
receiving first exhaust gas data acquired from an exhaust gas collection flow path and second exhaust gas data acquired from a vicinity of an exhaust gas source;
and calculating the exhaust gas collection efficiency eta according to the first exhaust gas data and the second exhaust gas data.
26. The data processing method according to claim 25, wherein the step of calculating an exhaust gas collection efficiency η based on the first exhaust gas data and the second exhaust gas data comprises:
calculating to obtain the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating a unit from the second exhaust gas dataTotal amount of exhaust gas diffusion M in timeTDAccording to the total mass M of exhaust gases collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDAnd calculating to obtain the waste gas collection efficiency eta.
27. The data processing method of claim 26, wherein the total mass M of exhaust gas collected per unit time is calculated from the first exhaust gas dataTCThe calculation formula of the steps is as follows:
Figure FDA0002821750450000041
wherein, the
Figure FDA0002821750450000042
Is the average exhaust gas concentration per unit time, said
Figure FDA0002821750450000043
The S is a cross-sectional area of a path through which the exhaust gas is collected as an average flow velocity of the exhaust gas per unit time.
28. The data processing method according to claim 26, wherein the change value Δ C according to the exhaust gas concentration per unit time is set to2Calculating the total amount M of exhaust gas diffusion in unit timeTDThe calculation formula of the steps is as follows:
MTD＝ΔC2*V
wherein V is the equivalent volume of exhaust gas diffusion per unit time.
29. The data processing method according to claim 26, wherein the step of collecting the exhaust gas is performed according to the total mass M of the exhaust gas collected per unit timeTCAnd the total amount M of exhaust gas diffused per unit timeTDThe calculation formula of the step of calculating the waste gas collection efficiency eta is as follows:
Figure FDA0002821750450000051
30. a data processing apparatus, comprising:
the first receiving module is used for receiving first exhaust gas data, and the first exhaust gas data is acquired from an exhaust gas collecting flow path;
a second receiving module for receiving second exhaust gas data, the second exhaust gas data being obtained from a vicinity of an exhaust gas source; and
and the calculation module is electrically connected with the first receiving module and the second receiving module and is used for calculating the waste gas collection efficiency eta according to the first waste gas data and the second waste gas data.
31. A data processing apparatus, comprising: a processor, memory, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising steps for performing a method according to any of claims 25-29.
32. A computer-readable storage medium for storing a computer program, wherein the computer program is adapted to make a computer execute the steps of the method according to any of claims 25 to 29.
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