CN213934882U - Exhaust gas collection efficiency evaluation device and exhaust gas collection device - Google Patents

Exhaust gas collection efficiency evaluation device and exhaust gas collection device Download PDF

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CN213934882U
CN213934882U CN202022909120.7U CN202022909120U CN213934882U CN 213934882 U CN213934882 U CN 213934882U CN 202022909120 U CN202022909120 U CN 202022909120U CN 213934882 U CN213934882 U CN 213934882U
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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 utility model relates to a waste gas collection efficiency evaluation device and waste gas collection device, wherein, waste gas collection efficiency evaluation device includes: the first sensor is arranged on the exhaust gas collecting flow path and used for acquiring first exhaust gas data; and a second sensor disposed proximate the exhaust gas source for acquiring second exhaust gas data. The first exhaust gas data and the second exhaust gas data can be used for calculating the exhaust gas collection efficiency, and the beneficial effects are that: by acquiring the first exhaust gas data and the second exhaust gas data, the user is provided with data of the exact exhaust gas collection efficiency of the exhaust gas collection device.

Description

Exhaust gas collection efficiency evaluation device and exhaust gas collection device
Technical Field
The utility model relates to a waste gas treatment technical field especially relates to a waste gas collection efficiency evaluation device and a waste gas collection 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, the exhaust gas collection device in the prior art is not provided with a sensor for evaluating the exhaust gas collection efficiency, and therefore, the data of the exhaust gas collection efficiency of the exhaust gas collection device cannot be provided to the user necessarily through automatically acquiring the data, which is not beneficial to further promotion of the exhaust gas pollution treatment result.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide an exhaust gas collection efficiency evaluation device that evaluates exhaust gas collection efficiency by a sensor.
In addition, an exhaust gas collecting device is also provided.
An exhaust gas collection efficiency evaluation device comprising:
the first sensor is used for acquiring first exhaust data on an exhaust gas collecting flow path; and
a second sensor for obtaining second exhaust data proximate an exhaust source, the first exhaust data and the second exhaust data used to calculate an exhaust collection evaluation efficiency.
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.
At one isIn an 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 device for evaluating the collection efficiency of the exhaust gas comprises a first sensor and a second sensor, wherein the first sensor is used for collecting first exhaust gas data on a flow path of the exhaust gas collection, the second sensor is used for collecting second exhaust gas data near an exhaust gas source, the first exhaust gas data and the second exhaust gas data can be used for calculating the collection efficiency of the exhaust gas, and the device has the advantages that: by acquiring the first exhaust gas data and the second exhaust gas data, the user is provided with data of the exact exhaust gas collection efficiency of the exhaust gas collection device.
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; and
and the second sensor is arranged near the exhaust gas source and used for acquiring second exhaust gas data, and the first exhaust gas data and the second exhaust gas data are used for calculating the exhaust gas collection evaluation efficiency.
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 and a second sensor, wherein the waste gas collecting port is used for collecting waste gas, the first sensor is used for collecting first waste gas data on a waste gas collecting flow path, the second sensor is used for collecting second waste gas data near a waste gas source, and the first waste gas data and the second waste gas data can be used for calculating waste gas collecting efficiency. The beneficial effects are as follows: by acquiring the first exhaust gas data and the second exhaust gas data, the user is provided with data of the exact exhaust gas collection efficiency of the exhaust gas collection device while collecting the exhaust gas.
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Fig. 1 is a schematic structural diagram of an exhaust gas collection efficiency evaluation device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another exhaust collection efficiency evaluation device according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of an exhaust gas collecting device according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another exhaust gas collecting device according to an embodiment of the present application.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present 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, an exhaust gas collection efficiency evaluation apparatus according to an embodiment includes a first sensor 20 and a second sensor 30.
The first sensor 20 is provided on the exhaust gas collecting flow path R in the exhaust gas collecting operation, and is configured to acquire first exhaust gas data on the exhaust gas collecting flow path R, where the first exhaust gas data is used to calculate a total mass M of exhaust gas collected per unit timeTC。
Preferably, referring to fig. 2, the first sensor 20 is located 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 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 V1Can be used for calculating the total mass M of the waste gas collected in unit timeTC。
The second sensor 30 is disposed near the exhaust gas source 01, and is configured to obtain second exhaust gas data near the exhaust gas source 01, where the second exhaust gas data is used to calculate a total amount of exhaust gas diffusion M per unit timeTD。
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。
In the exhaust gas collection efficiency evaluation operation process, a calculation module in the exhaust gas collection efficiency evaluation device can calculate the exhaust gas collection efficiency eta 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 BDA0002821749770000041
wherein the content of the first and second substances,
Figure BDA0002821749770000042
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 time1For a plurality of exhaust gas concentration data C1And calculating the average value after summing.
Figure BDA0002821749770000043
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 time1For a plurality of exhaust gas flow rate data V1And calculating the average value after summing. S is the cross-sectional area of the exhaust gas collecting flow-through path, preferably S is the cross-sectional area of the exhaust gas collecting port, and compared with an invisible exhaust gas collecting flow-through path, the visible exhaust gas collecting port is easier to measure and calculate the cross-sectional area, and the calculation accuracy is improved.
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 per unit timeΔC2According 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 time2At least two 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 volume V of exhaust gas diffusion per unit time may also be determined in other manners, and any other method capable of calculating the equivalent volume V of exhaust gas diffusion per unit time may also be used in the method for evaluating exhaust gas collection efficiency of the present invention.
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 BDA0002821749770000051
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 situation, and when the waste gas collecting efficiency is abnormal, the user can take measures to correct the waste gas collecting efficiency situation in time, so that the pollution to the environment when the waste gas collecting is abnormal is avoided.
The above exhaust gas collection efficiency evaluation device includes a first sensor 20 and a second sensor 30, the first sensor 20 is used for collecting first exhaust gas data on the exhaust gas collection flow path R, the second sensor 30 is used for collecting second exhaust gas data near the exhaust gas source 01, the first exhaust gas data and the second exhaust gas data can be used for calculating the exhaust gas collection efficiency, and the beneficial effects are that: the first exhaust gas data and the second exhaust gas data are acquired by the first sensor 20 and the second sensor 30, thereby providing the user with data of the exact exhaust gas collecting efficiency of the exhaust gas collecting apparatus.
Referring to fig. 3, an embodiment of an exhaust gas collecting device includes an exhaust gas collecting port 10, a first sensor 20, and a second sensor 30.
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 in the exhaust gas collecting operation, and is configured to acquire first exhaust gas data on the exhaust gas collecting flow path R, where the first exhaust gas data is used to calculate a total mass M of exhaust gas collected per unit timeTC。
Preferably, referring to fig. 4, the first sensor 20 is located 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 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 V1Can be used for calculating the total mass M of the waste gas collected in unit timeTC。
The second sensor 30 is disposed near the exhaust gas source 01, and is configured to obtain second exhaust gas data near the exhaust gas source 01, where the second exhaust gas data is used to calculate a total amount of exhaust gas diffusion M per unit timeTD。
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。
In the exhaust gas collection efficiency evaluation operation process, a calculation module in the exhaust gas collection efficiency evaluation device can calculate the exhaust gas collection efficiency eta 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 BDA0002821749770000071
wherein the content of the first and second substances,
Figure BDA0002821749770000072
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 time1For a plurality of exhaust gas concentration data C1And calculating the average value after summing.
Figure BDA0002821749770000073
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 time1For a plurality of exhaust gas flow rate data V1And calculating the average value after summing. S is the cross-sectional area of the exhaust gas collecting flow-through path, preferably S is the cross-sectional area of the exhaust gas collecting port, and compared with an invisible exhaust gas collecting flow-through path, the visible exhaust gas collecting port is easier to measure and calculate the cross-sectional area, and the calculation accuracy is improved.
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 time2At least two 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 volume V of exhaust gas diffusion per unit time may also be determined in other manners, and any other method capable of calculating the equivalent volume V of exhaust gas diffusion per unit time may also be used in the method for evaluating exhaust gas collection efficiency of the present invention.
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 BDA0002821749770000074
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 situation, and when the waste gas collecting efficiency is abnormal, the user can take measures to correct the waste gas collecting efficiency situation in time, so that the pollution to the environment when the waste gas collecting is abnormal is avoided.
The exhaust gas collecting device comprises an exhaust gas collecting port 10, a first sensor 20 and a second sensor 30, wherein the exhaust gas collecting port 10 is used for collecting exhaust gas, 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 first exhaust gas data and the second exhaust gas data can be used for calculating the exhaust gas collecting efficiency. The beneficial effects are as follows: the first exhaust gas data and the second exhaust gas data are acquired by the first sensor 20 and the second sensor 30, thereby providing a user with data of exact exhaust gas collection efficiency of the exhaust gas collection device while collecting exhaust gas.
Specific examples are as follows.
Example 1
The present embodiment provides an exhaust collection efficiency evaluation apparatus, please refer to fig. 1, which includes a first sensor 20 and a second sensor 30.
The first sensor 20 is disposed on the exhaust gas collecting flow path R in the exhaust gas operation 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 for acquiring second exhaust data.
When the exhaust gas collection efficiency evaluation device is operated, the first sensor 20 and the second sensor 30 can respectively send the first exhaust gas data and the second exhaust gas data to the calculation module, and the calculation module can calculate to obtain a unit according to the first exhaust gas dataTotal mass M of exhaust gas collected over timeTCCalculating 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 beneficial effects are as follows: the first exhaust gas data and the second exhaust gas data are acquired by the first sensor 20 and the second sensor 30, thereby providing the user with data of the exact exhaust gas collecting efficiency of the exhaust gas collecting apparatus.
Referring to fig. 3, the present embodiment further provides an exhaust gas collecting device, which includes an exhaust gas collecting port 10, a first sensor 20, and a second sensor 30.
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 in the exhaust gas collecting process, and is used 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 for acquiring second exhaust data.
When the exhaust gas collecting device works, the first sensor 20 and the second sensor 30 can respectively send the first exhaust gas data and the second exhaust gas data to the calculating module, and the calculating 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 beneficial effects are as follows: the first exhaust gas data and the second exhaust gas data are acquired by the first sensor 20 and the second sensor 30, thereby providing a user with data of exact exhaust gas collection efficiency of the exhaust gas collection device while collecting exhaust gas.
Example 2
The present embodiment provides an exhaust collection efficiency evaluation apparatus, please refer to fig. 2, which includes a first sensor 20 and a second sensor 30.
The first sensor 20 is disposed on the exhaust gas collecting flow path R in the exhaust gas collecting process, and is used for acquiring first exhaust gas data, in this embodiment, the first sensor 20 is disposed in the exhaust gas collecting port 10, and the first exhaust gas data at least includes exhaust gas concentration data C1And exhaust gas flow rate data V1。
A second sensor 30 is disposed proximate the exhaust source for acquiring second exhaust data including at least exhaust concentration data C2。
When the exhaust gas collection efficiency evaluation device works, the first sensor 20 and the second sensor 30 can respectively send the first exhaust gas data and the second exhaust gas data to the calculation module, and 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 beneficial effects are as follows: the first exhaust gas data and the second exhaust gas data are acquired by the first sensor 20 and the second sensor 30, thereby providing the user with data of the exact exhaust gas collecting efficiency of the exhaust gas collecting apparatus. In addition, collect mouthful 10 with waste gas and acquire first waste gas data in waste gas collection mouthful 10 as the passageway that converges that waste gas was collected, can improve the accuracy of first waste gas data by a wide margin, and then be favorable to improving the accuracy of waste gas collection efficiency eta.
Referring to fig. 4, the present embodiment further provides an exhaust gas collecting device, which includes an exhaust gas collecting port 10, a first sensor 20, and a second sensor 30.
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 in the exhaust gas collecting process, and is used for acquiring first exhaust gas data, in this embodiment, the first sensor 20 is disposed in the exhaust gas collecting port 10, and the first exhaust gas data at least includes exhaust gas concentration data C1And exhaust flow rate dataV1。
A second sensor 30 is disposed proximate the exhaust source for acquiring second exhaust data including at least exhaust concentration data C2。
When the exhaust gas collecting device works, the first sensor 20 and the second sensor 30 can respectively send the first exhaust gas data and the second exhaust gas data to the calculating module, and the calculating 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 beneficial effects are as follows: the first exhaust gas data and the second exhaust gas data are acquired by the first sensor 20 and the second sensor 30, thereby providing a user with data of exact exhaust gas collection efficiency of the exhaust gas collection device while collecting exhaust gas. In addition, collect mouthful 10 with waste gas and acquire first waste gas data in waste gas collection mouthful 10 as the passageway that converges that waste gas was collected, can improve the accuracy of first waste gas data by a wide margin, and then be favorable to improving the accuracy of waste gas collection efficiency eta.
Example 3
The present embodiment provides an exhaust collection efficiency evaluation apparatus, please refer to fig. 2, which includes a first sensor 20 and a second sensor 30.
The first sensor 20 is disposed on the exhaust gas collecting flow path R in the exhaust gas collecting process, and is used for acquiring first exhaust gas data, in this embodiment, the first sensor 20 is disposed in the exhaust gas collecting port 10, and the first exhaust gas data at least includes exhaust gas concentration data C1And exhaust gas flow rate data V1。
A second sensor 30 is disposed proximate the exhaust source for acquiring second exhaust data. In this embodiment, the second sensor 30 is disposed in a sensitive diffusion region B near the source of exhaust gas, and the second exhaust gas data includes at least exhaust gas concentration data C2。
The first sensor 20 and the second sensor are operated when the exhaust gas collection efficiency evaluation device is operatedThe device 30 can send the first exhaust gas data and the second exhaust gas data to the calculation module, and 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 beneficial effects are as follows: the first exhaust gas data and the second exhaust gas data are acquired by the first sensor 20 and the second sensor 30, thereby providing the user with data of the exact exhaust gas collecting efficiency of the exhaust gas collecting apparatus. In addition, the second sensor 30 is provided with the sensitive diffusion area B, and since the exhaust gas has the characteristic of uniform diffusion in the sensitive diffusion area B, more accurate second exhaust gas data can be obtained, thereby being beneficial to improving the accuracy of the exhaust gas collection efficiency η.
Referring to fig. 2, the present embodiment further provides an exhaust gas collecting device, which includes an exhaust gas collecting port 10, a first sensor 20, and a second sensor 30.
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 in the exhaust gas collecting process, and is used for acquiring first exhaust gas data, in this embodiment, the first sensor 20 is disposed in the exhaust gas collecting port 10, and the first exhaust gas data at least includes exhaust gas concentration data C1And exhaust gas flow rate data V1。
A second sensor 30 is disposed proximate the exhaust source for acquiring second exhaust data. In this embodiment, the second sensor 30 is disposed in a sensitive diffusion region B near the source of exhaust gas, and the second exhaust gas data includes at least exhaust gas concentration data C2。
When the exhaust gas collecting device works, the first sensor 20 and the second sensor 30 can respectively send the first exhaust gas data and the second exhaust gas data to the calculating module, and the calculating module can calculate the total mass M of the exhaust gas collected in unit time according to the first exhaust gas dataTCCalculating the total amount of exhaust gas diffusion in unit time according to the second exhaust gas dataMTDAccording 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 beneficial effects are as follows: the first exhaust gas data and the second exhaust gas data are acquired by the first sensor 20 and the second sensor 30, thereby providing a user with data of exact exhaust gas collection efficiency of the exhaust gas collection device while collecting exhaust gas. In addition, the second sensor 30 is provided with the sensitive diffusion area B, and since the exhaust gas has the characteristic of uniform diffusion in the sensitive diffusion area B, more accurate second exhaust gas data can be obtained, thereby being beneficial to improving the accuracy of the exhaust gas collection efficiency η.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. 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; and
a second sensor for obtaining second exhaust data proximate an exhaust source, the first exhaust data and the second exhaust data used to calculate an exhaust collection evaluation efficiency.
2. The exhaust gas collection efficiency evaluation device according to claim 1, wherein the first sensor is provided in an exhaust gas collection port.
3. The exhaust gas collection efficiency evaluation device according to claim 2, wherein the second sensor is provided in a sensitive diffusion region.
4. The exhaust gas collection efficiency evaluation device according to claim 1, 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 device according to claim 1, characterized in that the second exhaust gas data includes at least exhaust gas concentration data C2。
6. 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; and
and the second sensor is arranged near the exhaust gas source and used for acquiring second exhaust gas data, and the first exhaust gas data and the second exhaust gas data are used for calculating the exhaust gas collection evaluation efficiency.
7. The exhaust collection device of claim 6, wherein the first sensor is disposed within the exhaust collection port.
8. The exhaust gas collection device of claim 7, wherein the second sensor is located in a sensitive diffusion region.
9. The exhaust gas collection device of claim 6, wherein the first exhaust gas data includes at least exhaust gas concentration data C1And exhaust gas flow rate data V1。
10. The exhaust gas collection device of claim 6, wherein the second exhaust gas data includes at least exhaust gas concentration data C2。
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