CN113866117A - CO for industrial production exhaust gas2On-line monitoring device and using method thereof - Google Patents
CO for industrial production exhaust gas2On-line monitoring device and using method thereof Download PDFInfo
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- CN113866117A CN113866117A CN202111120499.6A CN202111120499A CN113866117A CN 113866117 A CN113866117 A CN 113866117A CN 202111120499 A CN202111120499 A CN 202111120499A CN 113866117 A CN113866117 A CN 113866117A
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- 238000009776 industrial production Methods 0.000 title claims abstract description 27
- 238000012806 monitoring device Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 302
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 151
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 151
- 238000010521 absorption reaction Methods 0.000 claims abstract description 79
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 100
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000002912 waste gas Substances 0.000 claims description 22
- 239000006185 dispersion Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Spectroscopy & Molecular Physics (AREA)
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Abstract
The invention provides CO for exhaust gas of industrial production2The invention relates to an on-line monitoring device and a using method thereof, which comprises an air inlet pipe, an air guide shell, a three-way valve, a connecting pipe and a pair of absorption main bodies for absorbing carbon dioxide, wherein the air inlet pipe is arranged at the top of the air guide shell, the three-way valve is arranged at the bottom of the air guide shell, three connecting holes of the three-way valve are respectively connected with the air guide shell and the pair of absorption main bodies through the connecting pipes, a mesh plate is arranged in the air guide shell, a first infrared carbon dioxide sensor arranged below the mesh plate is arranged in the air guide shell, the first infrared carbon dioxide sensor is connected with a computer through a data line, the design transmits the detected concentration data of the carbon dioxide sensor into the computer for storage by using the first infrared carbon dioxide sensor, and the invention has the function of convenient on-line real-time monitoring, the structure of the invention is reasonable,the on-line real-time monitoring device is convenient to assemble and install, convenient to monitor in real time, convenient to absorb and high in detection precision.
Description
Technical Field
The invention relates to CO used in waste gas exhaust of industrial production2An on-line monitoring device and a using method thereof, belonging to CO used in the exhaust gas of industrial production2Monitoring devices technical field.
Background
In industrial production, the emission of waste gas is needed, and the emission of carbon dioxide in the waste gas is a main cause of greenhouse effect and constitutes a serious threat to the ecological environment, so that the waste discharge of industrial production is neededCO for gas treatment2And a monitoring device.
In the prior art, CO used for the exhaust gas of industrial production is used2When the monitoring device is used, the concentration of carbon dioxide at the exhaust gas discharge part is inconvenient to carry out online real-time monitoring; carbon dioxide at the waste gas discharge position is inconvenient to absorb, monitoring is not timely, and carbon dioxide discharge harms the ecological environment; during monitoring, the detection precision is low, the use of a user is influenced, and the CO used for the exhaust gas of industrial production is urgently needed2The online monitoring device solves the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide CO for industrial production exhaust gas2The invention relates to an online monitoring device and a using method thereof, aiming at solving the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: CO for industrial production exhaust gas2On-line monitoring device, including being used for carrying out intake pipe, air guide casing, three-way valve, connecting pipe and a pair of absorption main part that is used for absorbing carbon dioxide of being connected with waste gas department, the intake pipe sets up at air guide casing top, the three-way valve sets up in air guide casing bottom, the three connecting hole of three-way valve is connected with air guide casing, a pair of absorption main part through the connecting pipe respectively, the inside mesh board that is provided with of air guide casing, the inside infrared carbon dioxide sensor of arranging mesh board below in that is provided with of air guide casing, an infrared carbon dioxide sensor is connected with the computer through the data line.
Further, absorption main part internally mounted has the box of placing that is used for storing NAOH, be provided with on the absorption main part lateral wall and be used for with place the closing plate that the box goes on being connected, the closing plate has been seted up on the absorption main part lateral wall, closing plate and seal groove phase-match.
Furthermore, a piston which is movable and is arranged in the absorption main body is arranged in the connecting pipe, a telescopic pipe is arranged at the bottom of the piston, an air guide plate is arranged at the bottom of the telescopic pipe, a plurality of dispersing pipes used for leading gas into the interior of the NAOH are uniformly arranged at the bottom of the air guide plate, an air hole used for leading the connecting pipe and the telescopic pipe to be communicated is formed in the piston, and an electric push rod used for being connected with the air guide plate is arranged on the upper side of the inner wall of the absorption main body.
Further, the inside infrared carbon dioxide sensor of second that is provided with of absorption main part, it has the blast pipe to absorb main part side wall mounting, install the fourth valve on the blast pipe, it is a pair of be provided with the conveyer pipe between the absorption main part, install fan and third valve on the conveyer pipe in proper order, it is a pair be provided with first valve, second valve on the connecting pipe between absorption main part and the three-way valve respectively.
Further, be provided with the PLC controller in the absorption main part, the PLC controller input is provided with the AD converter, PLC controller output is provided with the DA converter, first infrared carbon dioxide sensor, the infrared carbon dioxide sensor of second respectively with AD converter electric connection, fan, first valve, second valve, third valve and fourth valve respectively with DA converter electric connection.
Further, install the alarm on the absorption main part, alarm and D/A converter electric connection.
Furthermore, the bottom of the absorption main body is provided with an electronic scale which is connected with a computer through a data line.
Furthermore, a one-way valve is arranged on the connecting pipe, the first valve and the fourth valve are in an open state, and the second valve and the third valve are in a closed state.
CO for industrial production exhaust gas2The use method of the online monitoring device comprises the following steps:
monitoring the concentration of carbon dioxide gas at the exhaust gas discharge part;
absorbing carbon dioxide gas at the exhaust gas;
detecting and discharging the carbon dioxide gas in the gas after absorbing the carbon dioxide gas;
and (D) replacing the liquid absorbing the carbon dioxide gas in the placing box.
Further, the step (A) specifically includes the following steps
(A1) Introducing the waste gas after dust removal and temperature reduction into the gas inlet pipe, and allowing the gas to enter the gas guide shell along the gas inlet pipe;
(A2) the gas is uniformly dispersed in a plurality of meshes on the mesh plate, the first infrared carbon dioxide sensor detects the concentration of carbon dioxide in the uniformly dispersed gas, and transmits the detected numerical value to a computer for storage, and online real-time monitoring is carried out;
(A3) when the first infrared carbon dioxide sensor detects that the concentration of carbon dioxide is greater than a set value, the PLC enables the alarm to work to send out a warning, and workers check the reason of high concentration of carbon dioxide to ensure the quality of industrial production products;
the step (B) specifically includes the following steps
(B1) The gas containing carbon dioxide enters one of the absorption bodies along the three-way valve and the first valve and enters the gas guide plate on the extension tube along the gas hole on the piston;
(B2) uniformly dispersing the carbon dioxide into the NAOH by blowing from a plurality of dispersion pipes, uniformly absorbing the carbon dioxide, weighing the weight absorbed by the carbon dioxide by using an electronic scale, and transmitting the data to a computer for storage;
the step (C) specifically comprises the following steps
(C1) The gas after absorbing the carbon dioxide moves upwards along the inner wall of the absorption body and is blown out from the exhaust pipe;
(C2) when the second infrared carbon dioxide sensor detects that the concentration of the carbon dioxide in the exhaust gas is greater than a set value, the PLC controller enables the fourth valve and the first valve to be closed, and simultaneously opens the third valve and the second valve and enables the fan to work;
(C3) when the fan works, the gas in the absorption main body with the carbon dioxide concentration larger than the set value is sent to the inside of the other absorption main body, when the second infrared carbon dioxide sensor detects that the carbon dioxide concentration is smaller than or equal to the set value, the fan stops working, the third valve is closed, meanwhile, the fourth valve on the absorption main body connected with the second infrared carbon dioxide sensor which detects that the carbon dioxide concentration is smaller than or equal to the set value is opened, and as the carbon dioxide density is larger than the air density, after a period of time, the carbon dioxide discharged by the fan into the other absorption main body sinks to the inside of the NAOH to be absorbed;
(C4) introducing the waste gas subjected to dust removal and temperature reduction into the other absorption main body;
(C5) if the second infrared carbon dioxide external sensor in the other absorption main body detects that the concentration of the carbon dioxide is greater than the set value, the PLC controller closes the fourth valve and the second valve which are connected with the other absorption main body, simultaneously opens the third valve and the first valve and enables the fan to work, and executes the operation of the step (C3);
the step (D) specifically includes the following steps
(D1) The electric push rod works to drive the air guide plate to move upwards, the air guide plate moves upwards to drive the telescopic pipe to move upwards, the telescopic pipe moves upwards to drive the piston to move upwards, the piston moves to seal the joint, and the air guide plate moves upwards to drive the dispersion pipe to be separated from the inside of the placing box and reach an avoiding position;
(D2) and the placing box for placing the NAOH is taken out by applying force to the sealing plate, and the new NAOH is replaced.
The invention has the beneficial effects that: the invention relates to CO used in the waste gas exhaust of industrial production2When the on-line monitoring device is used:
1. the first infrared carbon dioxide sensor is used for transmitting the detected concentration data of the carbon dioxide sensor to the interior of a computer for storage, so that the effect of facilitating on-line real-time monitoring is achieved;
2. the method comprises the steps that through the use of meshes uniformly arranged on a mesh plate, waste gas containing carbon dioxide is uniformly dispersed, and then the concentration of the carbon dioxide in the uniformly dispersed waste gas containing carbon dioxide is detected by using a first infrared carbon dioxide sensor, so that the detection precision is improved;
3. the PLC controller enables the alarm to work to send out warning through the first infrared carbon dioxide sensor detecting that the concentration of the carbon dioxide is greater than a set value, and workers check the reason of high concentration of the carbon dioxide to ensure the quality of industrial production products;
4. the gas containing carbon dioxide enters one of the absorption bodies along the three-way valve and the first valve, enters the gas guide plate on the telescopic pipe along the gas hole on the piston, is blown out from the plurality of dispersion pipes and is uniformly dispersed into the NAOH, and the effect of absorbing the carbon dioxide in the waste gas is achieved;
5. the electric push rod works to drive the air guide plate to move upwards, the air guide plate moves upwards to drive the dispersion pipe to be separated from the interior of the placing box and reach the avoiding position, the placing box is convenient to take out, the NAOH for absorbing carbon dioxide in the interior of the placing box is replaced, the absorption continuity of the carbon dioxide is guaranteed, and the service life is prolonged;
6. when detecting exhaust gas carbon dioxide concentration and being greater than the setting value through using the infrared carbon dioxide sensor of second, the PLC controller makes fourth valve and first valve close, open the third valve simultaneously, the second valve with make fan work, fan work sends the inside gas of absorption main part that carbon dioxide concentration is greater than the setting value to inside another absorption main part, because carbon dioxide density is greater than air density, after a period, the carbon dioxide that the fan was discharged in another absorption main part sinks to inside the absorption of NAOH, play the effect of being convenient for carry out abundant absorption to the carbon dioxide of exhaust gas department, avoid monitoring untimely, lead to carbon dioxide to discharge harm ecological environment.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 shows CO used in the exhaust gas of an industrial process according to the invention2A front cross-sectional view of the on-line monitoring device;
FIG. 2 shows CO used in the exhaust gas of an industrial process according to the present invention2An elevational cross-sectional view of an absorbent body in an in-line monitoring device;
FIG. 3 is a schematic view of the control system of the present invention;
in the figure: 1-air inlet pipe, 2-air guide shell, 3-mesh plate, 4-first infrared carbon dioxide sensor, 5-three-way valve, 6-first valve, 61-second valve, 7-one-way valve, 8-telescopic pipe, 9-second infrared carbon dioxide sensor, 10-electric push rod, 11-air guide plate, 111-dispersion pipe, 12-placing box, 13-computer, 14-electronic scale, 15-sealing plate, 16-conveying pipe, 17-blower, 18-absorption main body, 181-alarm, 19-third valve, 20-connecting pipe, 21-piston, 211-air hole, 22-exhaust pipe and 23-fourth valve.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-3, the present invention provides a technical solution: CO for industrial production exhaust gas2The on-line monitoring device comprises an air inlet pipe 1 used for being connected with a waste gas position, an air guide shell 2, a three-way valve 5, a connecting pipe 20 and a pair of absorption main bodies 18 used for absorbing carbon dioxide, wherein the air inlet pipe 1 is arranged at the top of the air guide shell 2, the three-way valve 5 is arranged at the bottom of the air guide shell 2, three connecting holes of the three-way valve 5 are respectively connected with the air guide shell 2 and the pair of absorption main bodies 18 through the connecting pipe 20, a mesh plate 3 is arranged inside the air guide shell 2, a first infrared carbon dioxide sensor 4 arranged below the mesh plate 3 is arranged inside the air guide shell 2, the first infrared carbon dioxide sensor 4 is connected with a computer 13 through a data line, the design transmits the detected concentration data of the carbon dioxide sensor to the inside of the computer 13 for storage by using the first infrared carbon dioxide sensor 4, and the function of facilitating on-line real-time monitoring is achieved, the mesh that evenly sets up on 3 through the mesh board will contain the waste gas homodisperse of carbon dioxide, then uses first infrared carbon dioxide sensor 4, detects the carbon dioxide concentration in the homodisperse contains carbon dioxide waste gas, improves and detects the precision.
The absorption body 18 is internally provided with a placing box 12 for storing NAOH, the side wall of the absorption body 18 is provided with a sealing plate 15 for connecting with the placing box 12, the side wall of the absorption body 18 is provided with the sealing plate 15, the sealing plate 15 is matched with the sealing groove, the design improves the sealing performance of the connecting part and is convenient for taking out the placing box 12, the connecting pipe 20 is internally provided with a piston 21 which can move and is arranged in the absorption body 18, the bottom of the piston 21 is provided with an extension pipe 8, the bottom of the extension pipe 8 is provided with an air guide plate 11, the bottom of the air guide plate 11 is uniformly provided with a plurality of dispersion pipes 111 for leading gas into the NAOH, the piston 21 is provided with an air hole 211 for communicating the connecting pipe 20 and the extension pipe 8, the upper side of the inner wall of the absorption body 18 is provided with an electric push rod 10 for connecting with the air guide plate 11, and the design enables the electric push rod 10 to work, drive air guide plate 11 and upwards remove, air guide plate 11 upwards removes and drives flexible pipe 8 rebound, flexible pipe 8 rebound drives piston 21 rebound, piston 21 removes and is used for sealing up the junction, air guide plate 11 upwards removes and drives dispersion pipe 111 and break away from and place inside box 12, reach and dodge the position, be convenient for take out box 12 will be placed, change the NAOH of placing the inside absorption carbon dioxide of box 12, guarantee to carbon dioxide absorbent continuation, improve life.
The absorption main body 18 is internally provided with a second infrared carbon dioxide sensor 9, the side wall of the absorption main body 18 is provided with an exhaust pipe 22, the exhaust pipe 22 is provided with a fourth valve 23, a delivery pipe 16 is arranged between the pair of absorption main bodies 18, the delivery pipe 16 is sequentially provided with a fan 17 and a third valve 19, a first valve 6 and a second valve 61 are respectively arranged on a connecting pipe 20 between the pair of absorption main bodies 18 and the three-way valve 5, the design is convenient for gas to flow, the absorption main body 18 is provided with a PLC (programmable logic controller), the input end of the PLC is provided with an A/D (analog to digital) converter, the output end of the PLC is provided with a D/A (digital to analog) converter, the first infrared carbon dioxide sensor 4 and the second infrared carbon dioxide sensor 9 are respectively and electrically connected with the A/D converter, the fan 17, the first valve 6, the second valve 61, the third valve 19 and the fourth valve 23 are respectively and electrically connected with the D/A converter, install alarm 181 on the absorption main part 18, alarm 181 and DA converter electric connection, this design makes first infrared carbon dioxide sensor 4 detect carbon dioxide concentration and is greater than the setting value, and the PLC controller makes alarm 181 work send out the warning, and the staff examines the reason that carbon dioxide concentration is high, ensures the quality of industrial production product.
The absorption body 18 is provided at the bottom thereof with an electronic scale 14, the electronic scale 14 is connected to a computer 13 through a data line, the electronic scale 14 is used to weigh the weight absorbed by the carbon dioxide and transmit the data to the computer 13 for storage, the connection pipe 20 is provided with a check valve 7, the first valve 6 and the fourth valve 23 are opened, and the second valve 61 and the third valve 19 are closed.
CO for industrial production exhaust gas2The use method of the online monitoring device comprises the following steps:
monitoring the concentration of carbon dioxide gas at the exhaust gas discharge part;
absorbing carbon dioxide gas at the exhaust gas;
detecting and discharging the carbon dioxide gas in the gas after absorbing the carbon dioxide gas;
and (D) replacing the liquid absorbing the carbon dioxide gas in the placing box 12.
The step (A) specifically comprises the following steps
(A1) Introducing the waste gas after dust removal and temperature reduction into the gas inlet pipe 1, and allowing the gas to enter the gas guide shell 2 along the gas inlet pipe 1;
(A2) the gas is uniformly dispersed in a plurality of meshes of the mesh plate 3, the first infrared carbon dioxide sensor 4 detects the concentration of carbon dioxide in the uniformly dispersed gas, the detected numerical value is transmitted to the computer 13 for storage, online real-time monitoring is carried out, the waste gas containing carbon dioxide is uniformly dispersed through the meshes uniformly arranged on the mesh plate 3, then the first infrared carbon dioxide sensor 4 is used for detecting the concentration of carbon dioxide in the uniformly dispersed waste gas containing carbon dioxide, and the detection precision is improved;
(A3) when the first infrared carbon dioxide sensor 4 detects that the concentration of carbon dioxide is greater than a set value, the PLC controller enables the alarm 181 to work to send out a warning, and workers check the reason of high concentration of carbon dioxide to ensure the quality of industrial production products;
the step (B) specifically includes the following steps
(B1) The gas containing carbon dioxide enters the inside of one of the pair of absorption bodies 18 along the three-way valve 5 and the first valve 6, and enters the inside of the gas guide plate 11 on the telescopic tube 8 along the gas hole 211 on the piston 21;
(B2) the carbon dioxide is blown out from the plurality of dispersion pipes 111 and uniformly dispersed into the interior of the NAOH for uniformly absorbing the carbon dioxide, and the electronic scale 14 weighs the weight absorbed by the carbon dioxide and transmits the data to the computer 13 for storage, so that the carbon dioxide in the waste gas can be conveniently absorbed;
the step (C) specifically comprises the following steps
(C1) The gas after absorbing carbon dioxide moves upward along the inner wall of the absorption body 18, and is blown out from the exhaust pipe 22;
(C2) when the second infrared carbon dioxide sensor 9 detects that the concentration of carbon dioxide in the exhaust gas is higher than the set value, the PLC controller closes the fourth valve 23 and the first valve 6, opens the third valve 19 and the second valve 61, and operates the blower 17, and the blower 17 can move the gas bidirectionally between the pair of absorption bodies 18;
(C3) the fan 17 works to send the gas in the absorption main body 18 with the carbon dioxide concentration larger than the set value to the other absorption main body 18, when the second infrared carbon dioxide sensor 9 detects that the carbon dioxide concentration is smaller than or equal to the set value, the fan 17 stops working, the third valve 19 is closed, and meanwhile, the fourth valve 23 on the absorption main body 18 connected with the second infrared carbon dioxide sensor 9 which detects that the carbon dioxide concentration is smaller than or equal to the set value is opened, because the carbon dioxide density is larger than the air density, after a period of time, the carbon dioxide discharged into the other absorption main body 18 by the fan 17 sinks to the interior of NAOH to be absorbed, and the design has the function of fully absorbing the carbon dioxide at the waste gas discharge position, so that the carbon dioxide is prevented from being discharged to harm the ecological environment due to untimely monitoring;
(C4) the exhaust gas after dust removal and temperature reduction is introduced into the other absorption body 18 from the opened second valve 61;
(C5) if the second infrared carbon dioxide external sensor in the other absorption main body 18 detects that the concentration of the carbon dioxide is greater than the set value, the PLC controller closes the fourth valve 23 and the second valve 61 connected with the other absorption main body 18, simultaneously opens the third valve 19 and the first valve 6, enables the fan 17 to work, and executes the step (C3), the design has the effect of facilitating the full absorption of the carbon dioxide at the waste gas discharge position, and the phenomenon that the carbon dioxide is discharged to harm the ecological environment due to untimely monitoring is avoided;
the step (D) specifically includes the following steps
(D1) Making the electric push rod 10 work to drive the air guide plate 11 to move upwards, the air guide plate 11 moves upwards to drive the extension tube 8 to move upwards, the extension tube 8 moves upwards to drive the piston 21 to move upwards, the piston 21 moves to seal the connection part, and the air guide plate 11 moves upwards to drive the dispersion tube 111 to separate from the inside of the placing box 12 and reach the avoiding position;
(D2) through the application of force to sealing plate 15, will place the box 12 of placing of NAOH and take out, it can only to change new NAOH, this design is convenient for change the NAOH that fully absorbs carbon dioxide gas, guarantees the continuation of absorbing carbon dioxide, and the NAOH that absorbs carbon dioxide can generate baking soda, can be used to medical.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. CO for industrial production exhaust gas2On-line monitoring device, its characterized in that: including being used for carrying out intake pipe (1), air guide casing (2), three-way valve (5), connecting pipe (20) and a pair of absorption main part (18) that are used for absorbing carbon dioxide with waste gas department, intake pipe (1) sets up at air guide casing (2) top, three-way valve (5) set up in air guide casing (2) bottom, the three connecting hole of three-way valve (5) is connected with air guide casing (2), a pair of absorption main part (18) through connecting pipe (20) respectively, air guide casing (2) inside is provided with mesh board (3), air guide casing (2) inside is provided with first infrared carbon dioxide sensor (4) of arranging mesh board (3) below in, first infrared carbon dioxide sensor (4) are connected with computer (13) through the data line.
2. CO for exhaust gas of industrial production according to claim 12On-line monitoring device, its characterized in that: absorb main part (18) internally mounted have and be used for carrying out the box (12) of placing that stores to NAOH, be provided with on absorption main part (18) lateral wall and be used for with place box (12) and carry out closing plate (15) of being connected, closing plate (15) have been seted up on absorption main part (18) lateral wall, closing plate (15) and seal groove phase-match.
3. CO for exhaust gas of industrial production according to claim 12On-line monitoring device, its characterized in that: a piston (21) which can move and is arranged in the absorption main body (18) is arranged in the connecting pipe (20), an extension pipe (8) is arranged at the bottom of the piston (21), and an air guide is arranged at the bottom of the extension pipe (8)The gas absorption device comprises a plate (11), wherein a plurality of dispersion pipes (111) used for introducing gas into the interior of the NAOH are uniformly arranged at the bottom of the gas guide plate (11), a gas hole (211) used for communicating a connecting pipe (20) and a telescopic pipe (8) is formed in the piston (21), and an electric push rod (10) used for being connected with the gas guide plate (11) is arranged on the upper side of the inner wall of the absorption main body (18).
4. CO for exhaust gas of industrial production according to claim 12On-line monitoring device, its characterized in that: absorb main part (18) inside be provided with infrared carbon dioxide sensor of second (9), install blast pipe (22) on absorption main part (18) lateral wall, install fourth valve (23), it is a pair of on blast pipe (22) be provided with conveyer pipe (16) between absorption main part (18), install fan (17) and third valve (19) on conveyer pipe (16) in proper order, it is a pair of be provided with first valve (6), second valve (61) on connecting pipe (20) between absorption main part (18) and three-way valve (5) respectively.
5. CO for exhaust gas of industrial process according to claim 42On-line monitoring device, its characterized in that: absorb and be provided with the PLC controller on main part (18), the PLC controller input is provided with the AD converter, the PLC controller output is provided with the DA converter, first infrared carbon dioxide sensor (4), second infrared carbon dioxide sensor (9) respectively with AD converter electric connection, fan (17), first valve (6), second valve (61), third valve (19) and fourth valve (23) respectively with DA converter electric connection.
6. CO for exhaust gas of industrial production according to claim 52On-line monitoring device, its characterized in that: the absorption body (18) is provided with an alarm (181), and the alarm (181) is electrically connected with the D/A converter.
7. CO for exhaust gas of industrial production according to claim 12On-line monitoring device, its characterized in that: an electronic scale (14) is arranged at the bottom of the absorption main body (18), and the electronic scale (14) is connected with a computer (13) through a data line.
8. CO for exhaust gas of industrial production according to claim 52On-line monitoring device, its characterized in that: the connecting pipe (20) is provided with a one-way valve (7), the first valve (6) and the fourth valve (23) are in an open state, and the second valve (61) and the third valve (19) are in a closed state.
9. CO for use in exhaust gas of industrial processes according to any of claims 1 to 82The use method of the on-line monitoring device is characterized in that: the method comprises the following steps:
monitoring the concentration of carbon dioxide gas at the exhaust gas discharge part;
absorbing carbon dioxide gas at the exhaust gas;
detecting and discharging the carbon dioxide gas in the gas after absorbing the carbon dioxide gas;
and (D) replacing the liquid absorbing the carbon dioxide gas in the placing box (12).
10. CO for exhaust gas treatment of industrial processes according to claim 92The use method of the on-line monitoring device is characterized in that:
the step (A) specifically comprises the following steps
(A1) Introducing the waste gas after dust removal and temperature reduction into the gas inlet pipe (1), and introducing the gas into the gas guide shell (2) along the gas inlet pipe (1);
(A2) gas is uniformly dispersed in a plurality of meshes of the mesh plate (3), the first infrared carbon dioxide sensor (4) detects the concentration of carbon dioxide in the uniformly dispersed gas, and the detected numerical value is transmitted to a computer (13) for storage, so that online real-time monitoring is carried out;
(A3) when the first infrared carbon dioxide sensor (4) detects that the concentration of carbon dioxide is greater than a set value, the PLC controller enables the alarm (181) to work to send out a warning, and workers check the reason of high concentration of carbon dioxide to ensure the quality of industrial production products;
the step (B) specifically includes the following steps
(B1) The gas containing carbon dioxide enters the interior of one of the absorption bodies (18) along the three-way valve (5) and the first valve (6) and enters the interior of the gas guide plate (11) on the telescopic pipe (8) along the gas hole (211) on the piston (21);
(B2) uniformly dispersing the carbon dioxide into the NAOH by blowing from a plurality of dispersion pipes (111) for uniformly absorbing the carbon dioxide, weighing the weight absorbed by the carbon dioxide by using an electronic scale (14), and transmitting the data to a computer (13) for storage;
the step (C) specifically comprises the following steps
(C1) The gas after absorbing the carbon dioxide moves upward along the inner wall of the absorption body (18) and is blown out from the exhaust pipe (22);
(C2) when the second infrared carbon dioxide sensor (9) detects that the concentration of the carbon dioxide in the exhaust gas is greater than a set value, the PLC closes the fourth valve (23) and the first valve (6), and simultaneously opens the third valve (19) and the second valve (61) and enables the fan (17) to work;
(C3) when the fan (17) works to send gas in the absorption main body (18) with the carbon dioxide concentration larger than a set value to the inside of the other absorption main body (18), when the second infrared carbon dioxide sensor (9) detects that the carbon dioxide concentration is smaller than or equal to the set value, the fan (17) stops working, the third valve (19) is closed, meanwhile, the fourth valve (23) on the absorption main body (18) connected with the second infrared carbon dioxide sensor (9) which detects that the carbon dioxide concentration is smaller than or equal to the set value is opened, and as the carbon dioxide density is larger than the air density, after a period of time, the carbon dioxide discharged into the other absorption main body (18) by the fan (17) sinks to the inside of the NAOH to be absorbed;
(C4) the exhaust gas after dust removal and temperature reduction is introduced into the other absorption main body (18);
(C5) if the second infrared carbon dioxide external sensor in the other absorption main body (18) detects that the carbon dioxide concentration is greater than the set value, the PLC controller closes the fourth valve (23) and the second valve (61) connected with the other absorption main body (18), simultaneously opens the third valve (19) and the first valve (6) and enables the fan (17) to work, and executes the operation of step (C3);
the step (D) specifically includes the following steps
(D1) Enabling an electric push rod (10) to work to drive an air guide plate (11) to move upwards, enabling the air guide plate (11) to move upwards to drive a telescopic pipe (8) to move upwards, enabling the telescopic pipe (8) to move upwards to drive a piston (21) to move upwards, enabling the piston (21) to move to be used for sealing a joint, and enabling the air guide plate (11) to move upwards to drive a dispersing pipe (111) to be separated from the inside of a placing box (12) to reach an avoiding position;
(D2) and the sealing plate (15) is forced to take out the housing box (12) housing the NAOH, and the new NAOH is replaced.
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|---|---|---|---|
| CN202111120499.6A CN113866117A (en) | 2021-09-24 | 2021-09-24 | CO for industrial production exhaust gas2On-line monitoring device and using method thereof |
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| CN202111120499.6A CN113866117A (en) | 2021-09-24 | 2021-09-24 | CO for industrial production exhaust gas2On-line monitoring device and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942298A (en) * | 2022-07-26 | 2022-08-26 | 安徽燃博智能科技有限公司 | VOC gas environment-friendly online monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942298A (en) * | 2022-07-26 | 2022-08-26 | 安徽燃博智能科技有限公司 | VOC gas environment-friendly online monitoring system |
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Application publication date: 20211231 |