CN112986448B - Petrochemical torch waste gas emission monitoring system - Google Patents
Petrochemical torch waste gas emission monitoring system Download PDFInfo
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- CN112986448B CN112986448B CN202110440065.8A CN202110440065A CN112986448B CN 112986448 B CN112986448 B CN 112986448B CN 202110440065 A CN202110440065 A CN 202110440065A CN 112986448 B CN112986448 B CN 112986448B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
Abstract
The invention discloses a petrochemical engineering torch waste gas emission monitoring system, and belongs to the technical field of waste gas monitoring. The system comprises a sampling device, a pretreatment device, detection equipment and a gas recovery device, wherein the sampling device comprises a probe, the probe is connected with the pretreatment device through a heat tracing pipeline, one end of the pretreatment device, which is far away from the heat tracing pipeline, is connected with the detection equipment, the outer wall of the detection equipment is connected with an exhaust pipe, one end of the exhaust pipe, which is far away from the detection equipment, is connected with the gas recovery device, an impeller shell is connected between the probe and the heat tracing pipeline, the outer wall of the impeller shell is connected with a driving motor, an impeller is arranged in the impeller shell, and the output end of the driving motor is connected with a rotating shaft. The invention can realize the collection and detection of waste gas in the torch as required, improves the accuracy of the waste gas monitoring result by changing the parameter influence conditions of the waste gas sample, and is also beneficial to improving the efficiency of waste gas recovery.
Description
Technical Field
The invention relates to a waste gas monitoring technology, in particular to a petrochemical engineering torch waste gas emission monitoring system.
Background
The torch refers to a treatment device for safely burning waste gas of a factory in a chemical industry enterprise. When discharged from the flare, the exhaust gas may contain significant amounts of flammable, toxic, and Highly Reactive Volatile Organic Compounds (HRVOCs). This waste gas has certain harm, especially harmful gas and the particulate matter of polluted environment, in the inevitable time in the production process, need carry out strict management and control according to national standard or industry standard. Therefore, the waste gas treatment in the petrochemical production equipment or the discharge device of the heavy machinery needs to be detected in real time, and the emission and pollution are reduced through detection, so that the generation is prevented from the source.
Patent application No. CN202010939952.5 among the prior art discloses an online monitoring system of petrochemical industry torch discharge waste gas component and calorific value, this system is mainly by sampling device, leak-proof preprocessing device, gas recovery device and chromatograph constitute, sampling device and gas recovery device wherein also have a great deal of not enough in the application process of reality, sampling device arranges the torch in for a long time, the adhesion of particulate matter and pollutant leads to the effect of monitoring not good, also adopt traditional collection including gas recovery device.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects of the monitoring equipment and the detection technology of petrochemical engineering torch waste gas in the prior art, the invention aims to provide a petrochemical engineering torch waste gas emission monitoring system.
The technical scheme is as follows: the petrochemical engineering torch waste gas emission monitoring system comprises a sampling device, a pretreatment device, detection equipment and a gas recovery device, wherein in the monitoring system, the sampling device is provided with a probe for sampling petrochemical engineering torch waste gas, the probe is connected with the pretreatment device through a heat tracing pipeline, the pretreatment device adjusts the temperature, the pressure and the flow of the waste gas and then conveys the waste gas to the detection equipment, and the waste gas detected by the detection equipment is recovered by the gas recovery device;
the sampling device comprises a probe and an impeller mechanism, the probe comprises a front shell and a rear shell, a cleaning mechanism is arranged in the front shell, the cleaning mechanism comprises a side plate capable of swinging to adjust the air flow direction of air inlet, and a filter screen is arranged in the rear shell; the probe is connected with an impeller shell, an impeller is arranged in the impeller shell, and the impeller is driven by a motor arranged on the outer wall of the impeller shell;
the gas recovery device comprises two groups of gas storage steel cylinders and a control mechanism for realizing switching between the two groups of gas storage steel cylinders, wherein the control mechanism is driven by a cylinder, and realizes that gas pipes are connected to different gas storage steel cylinders through a power rod and a track groove.
Furthermore, the probe and the outer wall of the impeller shell are both connected with positioning plates, two positioning plates are connected with moving rods in a sliding mode, the outer wall of the rotating shaft is connected with a cam, and the cam is movably abutted to the moving rods.
The cleaning mechanism comprises a side plate, the side plate is connected in the probe in a rotating mode through a rotating shaft, the outer wall of the side plate is movably connected with a push rod, one end, far away from the side plate, of the push rod penetrates through the probe and is connected with a stress plate, the stress plate is movably abutted to a moving rod, a first elastic element is sleeved on the outer wall of the push rod, and two ends of the first elastic element are connected with the stress plate and the probe respectively.
Be provided with annular feed chute between procapsid and the back casing, procapsid outer wall fixedly connected with front end housing, back casing outer wall swing joint has the rear end cap, front end housing and rear end cap outer wall connection have the first otic placode of matched with, two swing joint has first bolt between the first otic placode, the rear end cap includes two semicircle casings, two semicircle casing outer wall connection has the second otic placode of matched with, two swing joint has the second bolt between the second otic placode.
The pretreatment device comprises a double-isolation discharge valve which is a group of three-way valves formed by connecting two three-way valves.
The gas recovery device comprises a base, wherein the outer wall of the top of the base is connected with a U-shaped frame, the outer wall of the U-shaped frame is connected with a fan, the gas inlet end of the fan is connected with an exhaust pipe, the end of the fan, which is far away from the exhaust pipe, is connected with a gas pipe, the two sides of the base are both connected with gas storage steel cylinders, the two gas storage steel cylinders are symmetrically arranged on the two sides of the U-shaped frame, the outer wall of the U-shaped frame is connected with a cylinder, the output end of the cylinder penetrates through the U-shaped frame and is connected with a power rod, the outer wall of the power rod is connected with a sleeve pipe, the outer wall of the U-shaped frame is connected with a track plate through a connecting rod, the outer wall of the track plate is provided with a track groove, a movable rod is movably connected in the track groove, the outer wall of the movable rod is fixedly connected with a connecting plate, the outer wall of the connecting plate is connected with a connecting rod, the connecting rod is rotatably connected in the sleeve pipe, and the end, which is far away from the connecting plate, is connected with an inflation shell, the inflatable shell is connected with the gas pipe.
The track groove includes the cross slot and erects the groove, the cross slot with erect the mutual intercommunication in groove, cross slot inner wall connection has the fixed block, fixed block both sides outer wall all is provided with first inclined plane, two first inclined plane all offsets with the movable rod activity.
The gas storage steel bottle outer wall is connected with inflation inlet and gas vent, the annular groove is dug to the inflation inlet inner wall, and the annular groove inner wall is connected with first sealed the pad, and the annular groove inner wall still swing joint has closed piece, and closed piece outer wall is connected with the second sealed pad, and the second sealed pad offsets with the activity of first sealed pad, and closed piece outer wall is connected with the spring telescopic link, the one end that closed piece was kept away from to the spring telescopic link links to each other with the gas storage steel bottle inner wall.
The outer wall of the inflatable shell is connected with an inflation tube, the inflation tube is movably connected in the inflation opening, the outer wall of the inflatable shell is further connected with a leakage-proof pipeline, and the leakage-proof pipeline is sleeved on the outer side of the inflation opening.
The chromatograph is a Siemens MAXUMII industrial chromatograph.
Furthermore, the monitoring system is provided with a heating device for maintaining the temperature of the gas pipeline through which the exhaust gas flows.
Has the advantages that: compared with the prior art, the petrochemical engineering torch waste gas emission monitoring system provided by the invention has the following remarkable progress:
1. the sampling device is divided into a front end shell and a rear end shell on the basis of probe sampling, a side plate is arranged to adjust the air inlet direction, the adopted air blowing at different angles can play a cleaning role, the flow and the speed of the air entering are controlled by an impeller, the probe collects the air in a torch to obtain sample air, the air is filtered and purified in the process, the filtered air is transmitted to a pretreatment device through a heat tracing pipeline in a temperature-controlled manner, the impeller has another effect of increasing the air pressure in the impeller shell to form stable air flow, the sampling flow can be controlled by the control of a driving motor, and the cleaning of the sampling device and the probe can be realized by back blowing;
2. according to the petrochemical plant torch waste gas emission monitoring system, the cam is driven to intermittently abut against the moving rod when the rotating shaft rotates, the moving rod is enabled to move left and right in the positioning plate, the moving rod is further enabled to extrude the stress plate, the stress plate drives the push rod to move, the first elastic element contracts, the push rod drives the side plates to swing by taking the rotating shaft as a circle center when moving, and further the gas inlet direction is adjusted, so that the gas blows and cleans impurities intercepted on the filter screen, and the impurities pass through the annular feeding groove along the radian of the filter screen into the rear end cover to be collected and processed;
3. the invention can realize the collection of waste gas in the torch according to the requirement, improve the accuracy of the waste gas monitoring result, reduce the labor intensity of workers, improve the waste gas recovery efficiency and further improve the waste gas monitoring efficiency.
4. This petrochemical plant torch exhaust emission monitoring system through setting up two design of preventing, two isolation bleeder valves are in order to realize accuse temperature and pressure balance promptly, avoid the easy problem of revealing of producing of body pretreatment process.
5. This petrochemical plant torch exhaust emission monitoring system, make the fan take out the gas after detecting equipment detects through the blast pipe, and inside getting into inflatable housing through the gas-supply pipe, make inside gas pours into the steel bottle of giving vent to anger, after the steel bottle of giving vent to anger is full, control cylinder operation, make the output of cylinder pass through power rod and drive the sleeve pipe and remove, make the connecting rod drive the movable rod through the connecting plate and remove in the track inslot, and then make inflatable housing overturn one hundred eighty degrees in the motion process, inflatable housing drives inside the gas tube translation to the inflation inlet afterwards, and make the gas tube extrusion closure piece, make the shrink of spring telescopic link, first sealed pad separates with the sealed pad of second, gas gets into the inside storage of steel bottle from the space, be favorable to reducing workman intensity of labour, improve waste gas recovery's efficiency.
Drawings
FIG. 1 is a block diagram of a monitoring system of the present invention;
FIG. 2 is a schematic structural diagram of a sampling device according to the present invention;
FIG. 3 is a schematic cross-sectional view of a probe according to the present invention;
FIG. 4 is a schematic structural view of a gas recovery apparatus according to the present invention;
FIG. 5 is a schematic structural view of a U-shaped frame of the present invention;
fig. 6 is a schematic structural view of a track slab according to the present invention;
FIG. 7 is a schematic cross-sectional view of a gas storage cylinder according to the present invention;
fig. 8 is a schematic structural view of a portion a in fig. 7.
In the figure: 1. a probe; 101. a front housing; 102. a rear housing; 1021. a filter screen; 2. an exhaust pipe; 3. an impeller housing; 301. a drive motor; 302. a rotating shaft; 3021. a cam; 4. positioning a plate; 401. a travel bar; 5. a side plate; 501. a push rod; 502. a stress plate; 503. a first elastic element; 6. an annular feed chute; 7. a front end cover; 8. a rear end cap; 801. a semi-circular housing; 9. a first ear plate; 10. a second ear panel; 11. a base; 12. a U-shaped frame; 121. a cylinder; 122. a power rod; 123. a sleeve; 13. a fan; 131. a gas delivery pipe; 14. a gas storage steel cylinder; 141. an inflation inlet; 142. an exhaust port; 15. a track plate; 151. a track groove; 1511. a transverse groove; 1512. a vertical slot; 1513. a fixed block; 16. a movable rod; 161. a connecting plate; 162. a connecting rod; 17. an inflatable housing; 171. an inflation tube; 172. a leak-proof conduit; 18. an annular groove; 181. a first gasket; 19. a closing block; 191. a second gasket; 20. the spring is a telescopic rod.
Detailed Description
In order to disclose the technical scheme of the invention in detail, the following description is further explained by combining the drawings and the specific embodiments.
The invention relates to a flare waste gas emission monitoring system of a petrochemical plant, which mainly comprises four parts, namely a sampling device, a pretreatment device, detection equipment and a gas recovery device, as shown in figure 1. Sampling device is used for the sample in the petrochemical industry torch waste gas, draw forth partly waste gas, then carry preprocessing device with waste gas through the heat tracing pipeline, preprocessing device's main objective plays safe operation and harmful gas and keeps apart, prevent dangerous emergence such as burning or explosion, detection equipment is sent into to preprocessing device's waste gas, detection equipment generally includes chemical composition such as chromatograph and harmful gas's content analysis instrument, through detection equipment, obtain the harmful gas composition in this waste gas sample and whether reach emission standard. And finally, the waste gas is recycled through a gas recycling device, so that pollution is prevented.
Before further describing the specific structure of the present invention, it should be noted that for the detection of flare gas, the use of a heating device is also noted, and the addition of the heating device to the pipeline or corresponding equipment for collecting gas helps to keep the gas molecules alive and also to prevent the attachment of pollutants and insufficiently burned particles in the equipment and the pipeline to some extent. Secondly, the petrochemical waste gas contains harmful gas components such as carbon monoxide, sulfide and the like, so the whole system needs to realize sealed connection among all parts while considering maintenance, replacement and cleaning. Finally, pollution problems due to direct emissions or improper disposal should also be noted for the exhaust gas after detection.
For the present invention, further, the knot of the sampling device of the present invention is shown in fig. 2. The sampling device comprises a probe 1, the probe 1 is connected with a pretreatment device through a heat tracing pipeline, one end of the pretreatment device, which is far away from the heat tracing pipeline, is connected with detection equipment, the outer wall of the detection equipment is connected with an exhaust pipe 2, and the other end of the exhaust pipe 2 is connected with a gas recovery device. Be connected with impeller housing 3 between probe 1 and the heat tracing pipeline, 3 outer wall connections of impeller housing have driving motor 301, be provided with the impeller in the impeller housing 3, driving motor 301's output is connected with axis of rotation 302, the one end that driving motor 301 was kept away from to axis of rotation 302 passes impeller housing 3 and links to each other with the impeller, probe 1 includes procapsid 101 and back casing 102, procapsid 101 and back casing 102 can be dismantled and connect, procapsid 101 is provided with the collection mouth, back casing 102 links to each other with impeller housing 3, back casing 102 inner wall is provided with filter screen 1021, be provided with clean mechanism in the procapsid 101, clean mechanism sets up the filter screen including setting up wobbling curb plate 5 and department such as interface.
The probe 1 and the outer wall of the impeller shell 3 are both connected with positioning plates 4, the two positioning plates 4 are slidably connected with a moving rod 401, the outer wall of the rotating shaft 302 is connected with a cam 3021, and the cam 3021 is movably abutted to the moving rod 401. The cam 3021 is non-circular and may include an oval or other geometric shape. It should be noted that the cam 3021 rotates under the action of the driving motor 301 and the rotating shaft 302, the positioning plate 4 is disposed on the moving rod 401, and a fastening point is also disposed on the positioning plate for fixing a spring to reset the moving rod 401, the cam 3021 abuts against the moving rod 401, the spring is in a stretching state, and has a shrinking movement trend, and accordingly, the moving rod 401 moves to the right.
Referring to fig. 3, for the side plate 5 of the cleaning mechanism, the side plate 5 is rotatably connected in the probe 1 through a rotating shaft, the outer wall of the side plate 5 is movably connected with a push rod 501, one end of the push rod 501, which is far away from the side plate 5, penetrates through the probe 1 and is connected with a stress plate 502, the stress plate 502 is movably abutted to the moving rod 401, the outer wall of the push rod 501 is sleeved with a first elastic element 503, and two ends of the first elastic element 503 are respectively connected with the stress plate 502 and the probe 1.
Be provided with annular feed chute 6 between procapsid 101 and the back casing 102, procapsid 101 outer wall fixedly connected with front end housing 7, back casing 102 outer wall swing joint has rear end housing 8, front end housing 7 and the 8 outer wall connection of rear end housing have the first otic placode of matched with 9, swing joint has first bolt between two first otic placodes 9, rear end housing 8 includes two semi-circular shell bodies 801, two semi-circular shell bodies 801 outer wall connection have matched with second otic placode 10, swing joint has the second bolt between two second otic placodes 10.
The pretreatment device comprises a double-isolation discharge valve which is a group of three-way valves formed by connecting two three-way valves.
With further reference to fig. 4-8, the gas recovery device includes a base 11, a U-shaped frame 12 is disposed on an outer wall of the top of the base 11, a fan 13 is disposed on an outer wall of the U-shaped frame 12, an air inlet end of the fan 13 is connected to the exhaust pipe 2, and the other end of the fan 13 is connected to an air pipe 131. The blower 13 also functions to control the flow direction and the internal pressure of the gas, helping to prevent the backflow of the gas to some extent. Base 11 both sides all have gas storage steel bottle 14, two 14 symmetries of gas storage steel bottle set up the both sides at U-shaped frame 12, U-shaped frame 12 outer wall still is equipped with cylinder 121, the output of cylinder 121 passes U-shaped frame 12 and is connected with power rod 122, power rod 122 outer wall connection has sleeve pipe 123, U-shaped frame 12 outer wall is connected with track board 15 through the connecting rod, track groove 151 is dug to track board 15 outer wall, swing joint has movable rod 16 in the track groove 151, 16 outer wall fixedly connected with connecting plates 161 of movable rod, 161 outer wall connection of connecting plates has connecting rod 162, connecting rod 162 rotates to be connected in sleeve pipe 123, and connecting rod 162 keeps away from the one end of connecting plate 161 and is connected with inflatable shell 17, inflatable shell 17 links to each other with gas-supply pipe 131.
The outer wall of the gas storage steel cylinder 14 is connected with an inflation inlet 141 and an exhaust outlet 142, the inner wall of the inflation inlet 141 is provided with an annular groove 18, the inner wall of the annular groove 18 is connected with a first sealing gasket 181, the inner wall of the annular groove 18 is movably connected with a closing block 19, the outer wall of the closing block 19 is connected with a second sealing gasket 191, the second sealing gasket 191 is movably abutted to the first sealing gasket 181, the outer wall of the closing block 19 is connected with a spring telescopic rod 20, and one end, far away from the closing block 19, of the spring telescopic rod 20 is connected with the inner wall of the gas storage steel cylinder 14.
The outer wall of the inflatable shell 17 is connected with an inflation tube 171, the inflation tube 171 is movably connected in the inflation port 141, the outer wall of the inflatable shell 17 is further connected with a leakage-proof pipeline 172, and the leakage-proof pipeline 172 is sleeved on the outer side of the inflation port 141.
The detection equipment can be a chromatograph, is used for analyzing components of gas, can monitor a calorific value when necessary, and can be a Siemens MAXUMII industrial chromatograph for specific application.
When the system works, the flow and the speed of gas entering are controlled by the impeller, so that the gas in a torch is collected by a collection port at the front end of the probe 1 to obtain sample gas, the gas is filtered and purified in the process, when the impeller is driven by the driving motor 301 to work, the rotating shaft 302 synchronously drives the cam 3021 to intermittently abut against the moving rod 401, the moving rod 401 moves leftwards and rightwards in the positioning plate 4, the moving rod 401 further reciprocates to extrude the stress plate 502, the stress plate 502 drives the push rod 501 to move, the first elastic element 503 contracts, the push rod 501 drives the side plates 5 to swing around the rotating shaft when moving, the direction of gas entering is further adjusted, the gas blows and cleans impurities intercepted on the filter screen 1021, the gas passes through the annular feed chute 6 along the radian of the filter screen 1021 to enter the rear end cover 8, the impurities are collected, and the filtered gas is transmitted to the pretreatment device through a heat tracing pipeline under the temperature control, through setting a double-prevention design, namely, double-isolation relief valves are arranged to realize temperature control and pressure balance, so as to avoid the problems of easy leakage and the like in the pretreatment process, the temperature, pressure and flow of waste gas are controlled and then transmitted to a chromatograph for analyzing the components and heat value of sample gas, the analyzed sample gas is recovered by a gas recovery device, a fan 13 is enabled to pump out the detected gas in the chromatograph through an exhaust pipe 2 and enter the inflatable shell 17 through a gas transmission pipe 131, the gas is filled into a gas cylinder, after the gas cylinder 14 is filled, the operation of the cylinder 121 is controlled, the output end of the cylinder 121 is enabled to drive a sleeve 123 to move through a power rod 122, a connecting rod 162 is enabled to drive a movable rod 16 to move in a track groove 151 through a connecting plate 161, in the process that the movable rod 16 moves from one end of a transverse groove 1511 to the other end, firstly, the movable rod 16 and the connecting rod 162 are in the same plane, the movable rod 16 is located at the front side of the connecting rod 162, after the movable rod 16 is stressed to move horizontally, the movable rod 16 firstly abuts against one side inclined plane of the fixed block 1513, the movable rod 16 moves towards the top end of the vertical slot 1512 along the fixed block 1513, at the moment, the movable rod 16 is located at the top, the sleeve 123 pushed by the power rod 122 is located at the bottom, the ninety-degree turnover of the inflatable shell 17 is realized, as the air cylinder 121 continues to apply force to the power rod 122, the power rod 122 continues to drive the connecting rod 162 to move through the sleeve 123, at the moment, the movable rod 16 is still located in the vertical slot 1512 and is relatively located at the rear side of the connecting rod 162, and then slides downwards along the other side inclined plane of the fixed block 1513, when the movable rod 16 leaves the vertical slot 1512 and is located right behind the connecting rod 162, as shown in fig. 3, the inflatable shell 17 has been turned over by one hundred eighty degrees during the movement, and then the inflatable shell 17 drives the inflatable tube 171 to translate to the interior of the steel cylinder charging port 141, and causes the inflatable tube 171 to extrude the closing block 19, the spring telescopic rod 20 is contracted, the first sealing gasket 181 is separated from the second sealing gasket 191, and gas enters the gas storage steel cylinder 14 from the gap for storage.
In the implementation of the technical scheme of the invention, the following three improvements and effect descriptions are provided by combining the control circuit of the driving motor and the control requirement of petrochemical waste gas sampling drainage and the like on the basis of the prior art:
1) the invention can also set up further seal in each part of the system and gas channel junction, prevent the pollution and leakage of the harmful waste gas;
2) the invention can set heating device in the probe and gas pipe of the sampling device to keep the sampling temperature, or increase the activity of gas molecule by temperature, to provide the detecting precision of the detecting device, which comprises changing the gas flow by controlling the impeller of the sampling device, to change the flow data to obtain the waste gas detecting data under different conditions. The changeable variables also comprise temperature, the waste gas detection data comprise harmful gas finished products and heat values obtained by the analysis of a chromatograph, higher detection requirements are realized through data under different conditions, and a plurality of threshold intervals are set according to industrial emission requirements to measure the emission standard of the waste gas;
3) the invention comprises the arrangement of the impeller and the driving motor, and also realizes back flushing, the probe and the inner wall of the pipeline can be cleaned by reverse gas in the cleaning process, and according to the test effect, the control of the impeller can effectively ensure that the gas reaches the effective amount of a chromatograph through the pretreatment device while forming stable gas flow.
Claims (8)
1. The utility model provides a petrochemical torch exhaust emission monitoring system, includes sampling device, preprocessing device, check out test set and gas recovery unit, its characterized in that: the sampling device is provided with a probe (1) for sampling and guiding the torch waste gas, the probe (1) is communicated with the pretreatment device through a heat tracing pipeline, the pretreatment device adjusts the temperature, the pressure and the flow of the waste gas and then conveys the waste gas to the detection equipment, and the waste gas detected by the detection equipment is recovered by the gas recovery device;
the sampling device comprises a probe (1) and an impeller mechanism, wherein the probe (1) comprises a front shell (101) and a rear shell (102), a cleaning mechanism is arranged in the front shell (101), a side plate (5) capable of swinging is arranged on the cleaning mechanism to adjust the direction of air flow, and a filter screen (1021) is arranged in the rear shell (102); the probe (1) is communicated with the impeller shell (3), an impeller is arranged in the impeller shell (3), and the impeller is controlled by a driving motor (301) positioned on the outer wall of the impeller shell (3);
the cleaning mechanism comprises a side plate (5), the side plate (5) is rotatably connected into the probe (1) through a rotating shaft, the outer wall of the side plate (5) is movably connected with a push rod (501), the other end of the push rod (501) penetrates through the probe (1) and is connected with a stress plate (502), the stress plate (502) is movably abutted to the moving rod (401), the outer wall of the push rod (501) is sleeved with a first elastic element (503), and two ends of the first elastic element (503) are respectively connected with the stress plate (502) and the probe (1);
the gas recovery device comprises two groups of gas storage steel cylinders (14) and a control mechanism for realizing switching between the two groups of gas storage steel cylinders (14), the control mechanism is driven by a cylinder (121), and a gas pipe (131) is connected to different gas storage steel cylinders (14) through a power rod (122) and a track groove;
the gas recovery device comprises a base (11), wherein the outer wall of the top of the base (11) is connected with a U-shaped frame (12), the outer wall of the U-shaped frame (12) is connected with a fan (13), the gas inlet end of the fan (13) is connected with an exhaust pipe (2), the other end of the fan (13) is connected with a gas pipe (131), both sides of the base (11) are connected with gas storage steel cylinders (14), the two gas storage steel cylinders (14) are symmetrically arranged on both sides of the U-shaped frame (12), the outer wall of the U-shaped frame (12) is connected with a cylinder (121), the output end of the cylinder (121) penetrates through the U-shaped frame (12) and is connected with a power rod (122), the outer wall of the power rod (122) is connected with a sleeve (123), the outer wall of the U-shaped frame (12) is connected with a track plate (15) through a connecting rod, the outer wall of the track plate (15) is provided with a track groove (151), and a movable rod (16) is movably connected in the track groove (151), the outer wall of the movable rod (16) is fixedly connected with a connecting plate (161), the outer wall of the connecting plate (161) is connected with a connecting rod (162), the connecting rod (162) is rotatably connected into the sleeve (123), one end, far away from the connecting plate (161), of the connecting rod (162) is connected with an inflatable shell (17), and the inflatable shell (17) is communicated with the air conveying pipe (131).
2. The petrochemical flare exhaust emission monitoring system of claim 1, wherein: probe (1) and impeller casing (3) outer wall all are connected with locating plate (4), and sliding connection has carriage release lever (401) in two locating plates (4), and axis of rotation (302) outer wall is connected with cam (3021), cam (3021) offset with carriage release lever (401) activity.
3. The petrochemical flare exhaust emission monitoring system of claim 1, wherein: be provided with annular feed chute (6) between procapsid (101) and back casing (102), procapsid (101) outer wall fixedly connected with front end housing (7), back casing (102) outer wall swing joint has rear end housing (8), front end housing (7) and rear end housing (8) outer wall connection have first otic placode of matched with (9), swing joint has first bolt between two first otic placodes (9), rear end housing (8) include two semicircle casings (801), and two semicircle casings (801) outer wall connections have matched with second otic placode (10), and swing joint has the second bolt between two second otic placodes (10).
4. The petrochemical flare exhaust emission monitoring system of claim 1, wherein: the pretreatment device comprises a double-isolation discharge valve which is a group of three-way valves formed by connecting two three-way valves.
5. The petrochemical flare exhaust emission monitoring system of claim 1, wherein: track groove (151) include transverse groove (1511) and erect groove (1512), and transverse groove (1511) and erect groove (1512) communicate each other, and transverse groove (1511) inner wall connection has fixed block (1513), and fixed block (1513) both sides outer wall all is provided with first inclined plane, and two first inclined planes all offset with movable rod (16) activity.
6. The petrochemical flare exhaust emission monitoring system of claim 1, wherein: the gas storage steel bottle (14) outer wall is connected with inflation inlet (141) and gas vent (142), and inflation inlet (141) inner wall is excavated annular groove (18), annular groove (18) inner wall is connected with first sealed pad (181), and annular groove (18) inner wall still swing joint has closing piece (19), closing piece (19) outer wall is connected with the sealed pad of second (191), and the sealed pad of second (191) offsets with the activity of first sealed pad (181), and closing piece (19) outer wall is connected with spring telescopic rod (20), and the one end that closing piece (19) was kept away from in spring telescopic rod (20) links to each other with gas storage steel bottle (14) inner wall.
7. The petrochemical flare exhaust emission monitoring system of claim 1, wherein: aerify casing (17) outer wall connection and have gas tube (171), gas tube (171) swing joint is in inflation inlet (141), it still is connected with leak protection pipeline (172) to aerify casing (17) outer wall, and leak protection pipeline (172) cup joint in the outside of inflation inlet (141).
8. The petrochemical flare exhaust emission monitoring system of claim 1, wherein: the monitoring system is also provided with a heating device for maintaining the temperature of the gas line through which the exhaust gas flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110440065.8A CN112986448B (en) | 2021-04-23 | 2021-04-23 | Petrochemical torch waste gas emission monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110440065.8A CN112986448B (en) | 2021-04-23 | 2021-04-23 | Petrochemical torch waste gas emission monitoring system |
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| Publication Number | Publication Date |
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| CN112986448A CN112986448A (en) | 2021-06-18 |
| CN112986448B true CN112986448B (en) | 2021-08-03 |
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