CN112834704A - Distributed flue gas sampling and measuring device - Google Patents
Distributed flue gas sampling and measuring device Download PDFInfo
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- CN112834704A CN112834704A CN202110014270.8A CN202110014270A CN112834704A CN 112834704 A CN112834704 A CN 112834704A CN 202110014270 A CN202110014270 A CN 202110014270A CN 112834704 A CN112834704 A CN 112834704A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0022—General constructional details of gas analysers, e.g. portable test equipment using a number of analysing channels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/26—Devices for withdrawing samples in the gaseous state with provision for intake from several spaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention provides a distributed flue gas sampling and measuring device which comprises a plurality of sampling structures which are uniformly arranged at intervals and arranged on a flue, wherein the sampling structures are communicated with a collecting pipe through an exhaust pipe, and the exhaust pipe is provided with a first electromagnetic valve; a smoke detection structure is arranged inside the collecting pipe, a detection sealing cavity is formed inside the smoke detection structure, a smoke detector and a control box are mounted on the smoke detection structure, and a first controller, a wireless transceiver module and a storage battery are arranged inside the control box; a ventilation pipe is also arranged on the first partition plate, one end of the ventilation pipe extends into the detection sealing cavity, and a third electromagnetic valve is arranged on the ventilation pipe; the wireless receiving and transmitting module is in wireless signal transmission connection with an external control computer; the outer sides of two ends of the collecting pipe are respectively provided with a first air pump and a second air pump, and the smoke detection structure is driven to move by air pressure; the automatic sampling detection device is novel in structure, can perform distributed automatic sampling detection on the flue, and can effectively improve the detection accuracy.
Description
Technical Field
The invention relates to the field of flue gas sampling and detecting equipment, in particular to a distributed flue gas sampling and measuring device.
Background
In order to facilitate sampling detection of flue gas, a plurality of sampling ports are reserved on most of the existing flues, and the sampling detection modes mainly comprise the following two modes: in one mode, the handheld smoke detector performs smoke sampling detection on each sampling port, so that the operation is troublesome and the working strength is high; and another kind mode is then that each sample position department all communicates and is equipped with the trachea, and the trachea converges to converging pipeline department again, and rethread flue gas check out test set detects the flue gas that converges pipeline department, and although reducible work load of this kind of mode, nevertheless because the pipeline is numerous and communicate each other, long distance's transport flue gas, the flue gas that leads to the sample is diluted by the diffusion, causes the inaccuracy of testing effect.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a distributed flue gas sampling and measuring device which is novel in structure, can perform distributed automatic sampling detection on a flue and can effectively improve the detection accuracy.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a distributed flue gas sampling and measuring device which comprises a plurality of sampling structures arranged on a flue, wherein the sampling parts of the sampling structures extend into the flue, and the sampling structures are uniformly arranged at intervals; the sampling structure is provided with exhaust pipes, each exhaust pipe is communicated with the side wall of a collecting pipe, the collecting pipe is fixed on the outer wall of the flue through a pipe bracket, and one end of each exhaust pipe, which is close to the sampling structure, is provided with a first electromagnetic valve; the smoke detection structure is arranged in the collecting pipe and comprises a first partition plate and a second partition plate, the first partition plate and the second partition plate are fixedly connected through a plurality of connecting rods, the outer walls of the first partition plate and the second partition plate are in sliding sealing fit with the inner wall of the collecting pipe, a detection sealing cavity is formed by the first partition plate, the second partition plate, the connecting rods and the inner wall of the collecting pipe, a smoke detector is installed on the first partition plate, the probe end of the smoke detector extends into the detection sealing cavity, a control box is fixedly installed at the end part, far away from the first partition plate, of the smoke detector, a circuit board is arranged in the control box, a first controller, a wireless transceiver module, a storage battery and a wireless charging module are arranged on the circuit board, and the wireless charging module is installed at the bottom of the control box, the bottom surface of the end part of the collecting pipe is embedded with a wireless charger, and when the control box moves in place, the wireless charging module abuts against the top surface of the wireless charger to realize wireless charging; an infrared sensor is fixedly installed on the outer wall of the control box, a probe of the infrared sensor is arranged towards the inner wall of the collecting pipe, a ventilation pipe is further installed on the first partition plate, one end of the ventilation pipe extends into the detection sealing cavity, and a third electromagnetic valve is arranged on the ventilation pipe; the wireless transceiver module is in wireless signal transmission connection with an external control computer; a first end cover and a second end cover are respectively arranged at two ends of the collecting pipe, the first end cover is positioned at one end close to the first clapboard, a first air pressure sensor is arranged in the first end cover, a second air pressure sensor is arranged in the second end cover, the outer sides of the two ends of the collecting pipe are respectively provided with a first air pump and a second air pump which are arranged on a supporting plate at the top of the flue, the support plate extends along the length direction of the flue, a first three-way pipe is arranged at the air outlet of the first air pump, the top of the first three-way pipe and the top of the collecting pipe close to the first end cover are communicated through a first air pipe, a second electromagnetic valve is arranged on the first air pipe, a first air release pipe is communicated with the first three-way pipe, and a fourth electromagnetic valve is arranged on the first air release pipe; a second air pipe and a third air pipe are further arranged on one side of the first air pipe and are communicated with the collecting pipe, when the smoke detection structure moves to a charging state, the third air pipe is communicated with the detection sealing cavity, the second air pipe is located on one side, away from the connecting rod, of the first partition plate, air inlets of the second air pipe, the third air pipe and the first air pump are communicated through a four-way pipe, a second air release pipe is communicated and arranged on the four-way pipe, a fifth electromagnetic valve is arranged on the second air release pipe, a sixth electromagnetic valve is arranged on the second air pipe, and a seventh electromagnetic valve is arranged on the third air pipe; a second three-way pipe is installed at an air outlet of the second air pump, the second three-way pipe is communicated with the top, close to the second end cover, of the collecting pipe through a fourth air pipe, an eighth electromagnetic valve is arranged on the fourth air pipe, a third air release pipe is communicated with the second three-way pipe, a ninth electromagnetic valve is arranged on the third air release pipe, an air inlet of the second air pump is communicated with the collecting pipe on one side of the fourth air pipe through a fifth air pipe, and a tenth electromagnetic valve is arranged on the fifth air pipe; the first air pump, the second air pump, the first electromagnetic valve, the second electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve, the seventh electromagnetic valve, the eighth electromagnetic valve, the ninth electromagnetic valve and the tenth electromagnetic valve are all electrically connected with a second controller, and the second controller is in wireless signal transmission connection with the control computer.
In a preferred technical scheme of the invention, a linear sliding table is arranged below the collecting pipe, the linear sliding table extends along the length direction of the collecting pipe, a mounting frame is fixedly arranged on the top surface of the linear sliding table, the mounting frame is slidably arranged on the collecting pipe, an electromagnet is embedded and arranged in the mounting frame, the electromagnet is in an arc-shaped structure and supports against the outer wall of the collecting pipe to slide, a magnet block is fixedly arranged on the wall surface of the second partition plate, which is far away from the connecting rod, and the magnet block is in magnetic attraction fit with the electromagnet after being electrified.
In a preferred technical scheme of the present invention, each exhaust pipe is further provided with an eleventh electromagnetic valve, and the eleventh electromagnetic valve is disposed at one end of the exhaust pipe close to the collecting pipe.
In a preferred technical scheme of the invention, a guide ring is sleeved on the outer side of the smoke detector, the guide ring is fixed on the outer side of the smoke detector through a support rod, and the outer wall of the guide ring is matched with the inner wall of the collecting pipe.
In a preferred technical scheme of the invention, the sampling structure comprises a sampling tube, a third end cover and a fourth end cover are respectively mounted at two ends of the sampling tube, a lead screw is arranged in the sampling tube, the lead screw is erected between the third end cover and the fourth end cover through a sealing bearing, the top end of the lead screw penetrates through the top of the third end cover, a driving motor is mounted at the top of the third end cover, and an output shaft of the driving motor is connected with the top end of the lead screw through a coupler; a flange plate is fixedly arranged on the outer wall of the sampling tube close to the third end cover, an insertion tube is fixedly arranged on the bottom surface of the flange plate, the inner wall of the insertion tube is tightly attached to the sampling tube, the outer wall of the insertion tube is matched with the mounting hole of the flue, and the flange plate is fixed on the outer side of the mounting hole through screws; the exhaust pipe is positioned on one side of the flange plate close to the third end cover; the outer wall of the sampling tube is provided with a first sampling port, a second sampling port and a third sampling port which are uniformly arranged at intervals, the first sampling port, the second sampling port and the third sampling port are arranged corresponding to the upper part, the middle part and the bottom part of the inner radial direction of the flue, a first blocking piece, a second blocking piece and a third blocking piece are arranged on the screw rod, and the first blocking piece, the second blocking piece and the third blocking piece are sequentially arranged corresponding to the first sampling port, the second sampling port and the third sampling port; the first blocking piece comprises a first lead screw sliding block and a second lead screw sliding block, a first blocking ring is fixedly arranged on the outer side of the first lead screw sliding block through a supporting rod, a second blocking ring is fixedly arranged on the outer side of the second lead screw sliding block through a supporting rod, one sides, away from the first sampling opening, of the first blocking ring and the second blocking ring are connected through a first arc-shaped plate, the distance between the first blocking ring and the second blocking ring is matched with the width of the first sampling opening, and the outer walls of the first blocking ring and the second blocking ring are in sealed rotating fit with the inner wall of the sampling tube; the second blocking piece comprises a third screw rod sliding block and a fourth screw rod sliding block, a third blocking ring is fixedly arranged on the outer side of the third screw rod sliding block through a supporting rod, a fourth blocking ring is fixedly arranged on the outer side of the fourth screw rod sliding block through a supporting rod, one sides, away from the second sampling opening, of the third blocking ring and one sides, away from the second sampling opening, of the fourth blocking ring are connected through a second arc-shaped plate, the distance between the third blocking ring and the fourth blocking ring is matched with the width twice of the first sampling opening, and the outer walls of the third blocking ring and the fourth blocking ring are in sealed rotating fit with the inner wall of the sampling tube; the third blocking piece comprises a fifth screw rod slide block, a sixth screw rod slide block and a seventh screw rod slide block, a fifth blocking ring is fixedly arranged on the outer side of the fifth screw rod slide block through a support rod, a sixth blocking ring is fixedly arranged on the outer side of the sixth screw rod slide block through a support rod, a seventh blocking ring is fixedly arranged on the outer side of the seventh screw rod slide block through a support rod, one sides of the fifth blocking ring and the sixth blocking ring, which are far away from the third sampling opening, are connected through a third arc-shaped plate, one sides of the sixth blocking ring and the seventh blocking ring, which are far away from the third sampling opening, are connected through a fourth arc-shaped plate, the distance between the fifth blocking ring and the sixth blocking ring is matched with the width of the third sampling opening, and the distance between the sixth blocking ring and the seventh blocking ring is matched with the width of the third sampling opening; the driving motor drives the first blocking piece, the second blocking piece and the third blocking piece to move, and the actions of independently opening or completely closing the first sampling port, the second sampling port and the third sampling port are achieved.
In a preferred technical scheme of the invention, at least two first sealing rings are fixedly arranged on the outer wall of the insertion pipe, the first sealing rings are distributed along the axial linear array of the insertion pipe, at least two second sealing rings are fixedly arranged on the bottom surface of the flange plate, and the second sealing rings are sequentially sleeved with a circle center along the radial direction.
The invention has the beneficial effects that:
the distributed flue gas sampling and measuring device provided by the invention is novel in structure, and the design of a plurality of sampling structures can automatically sample flue gas at a plurality of parts of a flue; the smoke detection structure is arranged in the collecting pipe and can move along the collecting pipe under the matching action of the first air pump, the second air pump, the air pipes, the air leaking pipes and the electromagnetic valves, when a certain sampling part needs to be sampled and detected, the smoke detection structure moves to a corresponding position, so that the corresponding exhaust pipe is connected and communicated with the detection sealing cavity, the smoke detector detects smoke entering the detection sealing cavity and transmits data to the control computer through wireless signals, the dilution and diffusion of the smoke in the conveying process are effectively reduced, and the detection accuracy is ensured; after the smoke detection of a certain part is finished, adjusting the air pressure inside the collecting pipe, enabling the smoke detection structure to move back to one end of the first end cover of the collecting pipe, discharging the smoke in the detection sealing cavity and avoiding influencing the subsequent detection; at this position, still can charge to the flue gas detection structure through wireless charger, guarantee to detect and data transfer's stability goes on.
Drawings
FIG. 1 is a schematic structural diagram of a distributed flue gas sampling and measuring device provided in an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is a schematic view of the inside of a bus bar provided in an embodiment of the present invention;
FIG. 5 is a schematic view of a first mating state of a manifold and a smoke detection structure provided in an embodiment of the present invention;
FIG. 6 is a schematic diagram of a second mating state of the manifold and the smoke detection structure provided in an embodiment of the present invention;
FIG. 7 is a schematic diagram of a third mating state of a manifold and smoke detection structure provided in an embodiment of the present invention;
FIG. 8 is a schematic structural view of a sampling structure provided in an embodiment of the present invention;
FIG. 9 is a schematic diagram of the internal structure of a sampling structure provided in an embodiment of the present invention;
FIG. 10 is a schematic diagram of a sampling structure provided in an embodiment of the present invention opening a first sampling port;
FIG. 11 is a schematic diagram of a sampling structure provided in an embodiment of the present invention opening a second sampling port;
FIG. 12 is a schematic diagram of a sampling structure provided in an embodiment of the present invention for opening a third sampling port;
FIG. 13 is a schematic diagram of a sampling structure provided in an embodiment of the present invention with all sampling ports open;
FIG. 14 is a schematic view of a sampling structure provided in an embodiment of the present invention closing all of the sampling ports;
fig. 15 is a schematic perspective view of a first blocking member provided in an embodiment of the present invention;
FIG. 16 is a schematic perspective view of a second barrier provided in an embodiment of the present invention;
fig. 17 is a schematic perspective view of a third blocking member provided in an embodiment of the present invention.
100. A flue; 200. a sampling structure; 201. an exhaust pipe; 202. a first solenoid valve; 203. an eleventh electromagnetic valve; 210. a sampling tube; 211. a first sampling port; 212. a second sampling port; 213. a third sampling port; 220. a lead screw; 230. a drive motor; 240. a flange plate; 241. inserting a tube; 242. a first seal ring; 243. a second seal ring; 250. a first blocking member; 251. a first lead screw slider; 252. a second lead screw slider; 253. a first retainer ring; 254. a second retainer ring; 255. a first arc-shaped plate; 260. a second blocking member; 261. a third lead screw slider; 262. a fourth lead screw slider; 263. a third retainer ring; 264. a fourth retainer ring; 265. a second arc-shaped plate; 270. a third blocking member; 271. a fifth lead screw slide block; 272. a sixth lead screw slider; 273. a seventh lead screw slide block; 274. a fifth baffle ring; 275. a sixth retainer ring; 276. a seventh retainer ring; 277. a third arc-shaped plate; 278. a fourth arc-shaped plate; 300. a collector pipe; 310. a first end cap; 311. a first air pressure sensor; 320. a second end cap; 321. a second air pressure sensor; 400. a smoke detection structure; 410. a first separator; 420. a second separator; 430. a connecting rod; 440. detecting the sealed cavity; 450. a smoke detector; 451. a guide ring; 460. a control box; 470. an infrared sensor; 480. a ventilation tube; 481. a third electromagnetic valve; 490. a magnet block; 510. a wireless charger; 520. controlling a computer; 530. a second controller; 610. a first air pump; 620. a second air pump; 710. a first air pipe; 711. a second solenoid valve; 720. a second air pipe; 721. a sixth electromagnetic valve; 730. a third air pipe; 731. a seventh electromagnetic valve; 740. a fourth gas pipe; 741. an eighth solenoid valve; 750. a fifth gas pipe; 751. a tenth solenoid valve; 760. a first air escape pipe; 761. a fourth solenoid valve; 770. a second air escape pipe; 771. a fifth solenoid valve; 780. a third air escape pipe; 781. a ninth electromagnetic valve; 800. a linear sliding table; 810. installing a frame; 820. an electromagnet.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 4, in an embodiment of the present invention, a distributed flue gas sampling and measuring apparatus is disclosed, which includes a plurality of sampling structures 200 installed on a flue 100, a sampling portion of the sampling structure 200 extends into the flue 100, and the plurality of sampling structures 200 are uniformly spaced; an exhaust pipe 201 is arranged on the sampling structure 200, each exhaust pipe 201 is communicated with the side wall of a collecting pipe 300, the collecting pipe 300 is fixed on the outer wall of the flue 100 through a pipe bracket, and a first electromagnetic valve 202 is arranged at one end of the exhaust pipe 201 close to the sampling structure 200; the inside of collecting pipe 300 is equipped with smoke detection structure 400, smoke detection structure 400 includes first baffle 410, second baffle 420, first baffle 410 reaches through many connecting rod 430 fixed connection between the second baffle 420, first baffle 410 reaches the outer wall of second baffle 420 with the inner wall sliding seal cooperation of collecting pipe 300, first baffle 410 second baffle 420, connecting rod 430 with the inner wall of collecting pipe 300 forms and detects sealed chamber 440, install smoke detector 450 on the first baffle 410, smoke detector 450's probe end stretches into detect sealed chamber 440 inside, smoke detector 450 keeps away from the tip fixed mounting of first baffle 410 and has control box 460, the inside circuit board that is equipped with of control box 460, be equipped with first controller, wireless transceiver module, battery on the circuit board, The wireless charging module is installed at the bottom of the control box 460, a wireless charger 510 is installed on the bottom surface of the end part of the collecting pipe 300 in an embedded mode, and when the control box 460 moves in place, the wireless charging module abuts against the top surface of the wireless charger 510 to achieve wireless charging; an infrared sensor 470 is fixedly installed on the outer wall of the control box 460, a probe of the infrared sensor 470 is arranged towards the inner wall of the collecting pipe 300, a ventilation pipe 480 is further installed on the first partition plate 410, one end of the ventilation pipe 480 extends into the detection sealed cavity 440, and a third electromagnetic valve 481 is arranged on the ventilation pipe 480; the wireless transceiver module is in wireless signal transmission connection with an external control computer 520; the two ends of the collecting pipe 300 are respectively provided with a first end cover 310 and a second end cover 320, the first end cover 310 is located at one end close to the first partition plate 410, the first end cover 310 is internally provided with a first air pressure sensor 311, the second end cover 320 is internally provided with a second air pressure sensor 321, the outer sides of the two ends of the collecting pipe 300 are respectively provided with a first air pump 610 and a second air pump 620, the first air pump 610 and the second air pump 620 are arranged on a supporting plate at the top of the flue 100, the supporting plate extends along the length direction of the flue 100, a first three-way pipe is arranged at an air outlet of the first air pump 610, the top of the collecting pipe 300 close to the first end cover 310 is communicated through a first air pipe 710, a second electromagnetic valve 711 is arranged on the first air pipe 710, a first air release pipe 760 is arranged on the first three-way pipe in a communicating manner, a fourth electromagnetic valve 761 is arranged on the first air leakage pipe 760; a second air pipe 720 and a third air pipe 730 are further arranged on one side of the first air pipe 710, the second air pipe 720 and the third air pipe 730 are both communicated with the collecting pipe 300, when the smoke detection structure 400 moves to a charging state, the third air pipe 730 is communicated with the detection sealing cavity 440, the second air pipe 720 is located on one side, away from the connecting rod 420, of the first partition plate 410, air inlets of the second air pipe 720, the third air pipe 730 and the first air pump 610 are communicated through a four-way pipe, a second air release pipe 770 is communicated with the four-way pipe, a fifth electromagnetic valve 771 is arranged on the second air release pipe 770, a sixth electromagnetic valve 721 is arranged on the second air pipe 720, and a seventh electromagnetic valve 731 is arranged on the third air pipe 730; a second three-way pipe is installed at an air outlet of the second air pump 620, the second three-way pipe is communicated with the top, close to the second end cap 320, of the collecting pipe 300 through a fourth air pipe 740, an eighth electromagnetic valve 741 is arranged on the fourth air pipe 740, a third air release pipe 780 is communicated with the second three-way pipe, a ninth electromagnetic valve 781 is arranged on the third air release pipe 780, an air inlet of the second air pump 620 is communicated with the collecting pipe 300 on one side of the fourth air pipe 740 through a fifth air pipe 750, and a tenth electromagnetic valve 751 is arranged on the fifth air pipe 750; the first air pump, the second air pump, the first electromagnetic valve, the second electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve, the seventh electromagnetic valve, the eighth electromagnetic valve, the ninth electromagnetic valve and the tenth electromagnetic valve are all electrically connected with a second controller 530, and the second controller 530 is in wireless signal transmission connection with the control computer 520; the third electromagnetic valve, the smoke detector, the wireless transceiver module, the wireless charging module, the storage battery and the infrared sensor are all electrically connected with the first controller.
The distributed flue gas sampling and measuring device is novel in structure, and the design of the plurality of sampling structures 200 can automatically sample flue gas at a plurality of positions of the flue 100; the smoke detection structure 400 is arranged inside the collecting pipe 300, under the matching action of the first air pump 610, the second air pump 620, the air pipes, the air release pipes and the electromagnetic valves, the smoke detection structure 400 can move along the collecting pipe 300, when a certain sampling part needs to be sampled and detected, as shown in fig. 5 and 6, the smoke detection structure 400 moves to a corresponding position, so that the corresponding exhaust pipe 201 is connected and communicated with the detection sealing cavity 440, the smoke detector 450 detects smoke entering the detection sealing cavity 440 and transmits data to the control computer 520 through a wireless signal, dilution and diffusion of the smoke in the conveying process are effectively reduced, and the detection accuracy is guaranteed; after the smoke detection of a certain part is completed, adjusting the air pressure inside the collecting pipe 300, as shown in fig. 7, so that the smoke detection structure 400 can move back to one end of the first end cap 310 of the collecting pipe 300, and discharge the smoke inside the detection sealing cavity 440, thereby avoiding affecting the subsequent detection; in this position, the smoke detection structure 400 can be charged by the wireless charger 510, so as to ensure the stable detection and data transmission; it should be noted that the inner wall of the collecting pipe 300 is embedded with a sensing reflection point corresponding to the infrared sensor 470, so that the flue gas detection structure can be conveniently and accurately moved and positioned.
Further, a linear sliding table 800 is arranged below the collecting pipe 300, the linear sliding table 800 extends along the length direction of the collecting pipe 300, a mounting frame 810 is fixedly arranged on the top surface of the linear sliding table 800, the mounting frame 810 is slidably arranged on the collecting pipe 300, an electromagnet 820 is embedded and arranged inside the mounting frame 810, the electromagnet 820 is of an arc-shaped structure and abuts against the outer wall of the collecting pipe 300 to slide, a magnet block 490 is fixedly arranged on the wall surface of the second partition plate 420, which is far away from the connecting rod 430, and the magnet block 490 is in magnetic attraction fit with the electromagnet 820 after being electrified; the straight line slip table can drive the installing frame and remove to through the cooperation of electro-magnet and magnet piece, carry out supplementary drive to the removal of flue gas detection structure, ensure that the flue gas detection structure can move to the position that corresponds.
Furthermore, an eleventh electromagnetic valve 203 is further disposed on each exhaust pipe 201, and the eleventh electromagnetic valve 203 is disposed at one end of the exhaust pipe 201 close to the collecting pipe 300; this structural design can carry out the shutoff to the tip of blast pipe 201, prevents that the flue gas from staying in blast pipe 201 inside, especially moves under the circumstances that has the flue gas in detecting sealed chamber 440, and the flue gas probably gets into in the blast pipe 201 of route, therefore this design can prevent to influence subsequent detection.
Further, a guide ring 451 is sleeved on the outer side of the smoke detector 450, the guide ring 451 is fixed on the outer side of the smoke detector 450 through a support rod, and the outer wall of the guide ring 451 is matched with the inner wall of the collecting pipe 300; and guiding and supporting the movement of the smoke detector.
Further, as shown in fig. 8 and 9, the sampling structure 200 includes a sampling tube 210, a third end cover and a fourth end cover are respectively installed at two ends of the sampling tube 210, a lead screw 220 is installed inside the sampling tube 210, the lead screw 220 is erected between the third end cover and the fourth end cover through a sealing bearing, the top end of the lead screw 220 penetrates through the top of the third end cover, a driving motor 230 is installed at the top of the third end cover, and an output shaft of the driving motor 230 is connected with the top end of the lead screw 220 through a coupling; a flange 240 is fixedly arranged on the outer wall of the sampling tube 210 close to the third end cover, an insertion tube 241 is fixedly arranged on the bottom surface of the flange 240, the inner wall of the insertion tube 241 is tightly attached to the sampling tube 210, the outer wall of the insertion tube 241 is matched with the mounting opening of the flue 100, and the flange 240 is fixed on the outer side of the mounting opening through screws; the exhaust pipe 201 is positioned on one side of the flange plate 240 close to the third end cover;
the outer wall of the sampling tube 210 is provided with a first sampling port 211, a second sampling port 212 and a third sampling port 213 which are uniformly arranged at intervals, the first sampling port 211, the second sampling port 212 and the third sampling port 213 are arranged corresponding to the upper part, the middle part and the bottom part of the inner radial direction of the flue 100, the screw 220 is provided with a first blocking piece 250, a second blocking piece 260 and a third blocking piece 270, and the first blocking piece 250, the second blocking piece 260 and the third blocking piece 270 are arranged corresponding to the first sampling port 211, the second sampling port 212 and the third sampling port 213 in sequence;
as shown in fig. 15, the first blocking member 250 includes a first lead screw slider 251 and a second lead screw slider 252, a first blocking ring 253 is fixedly disposed on an outer side of the first lead screw slider 251 through a support rod, a second blocking ring 254 is fixedly disposed on an outer side of the second lead screw slider 252 through a support rod, sides of the first blocking ring 253 and the second blocking ring 254 away from the first sampling port 211 are connected through a first arc-shaped plate 255, a distance between the first blocking ring 253 and the second blocking ring 254 is adapted to a width of the first sampling port 211, and outer walls of the first blocking ring 253 and the second blocking ring 254 are in sealed and rotatable fit with an inner wall of the sampling tube 210;
as shown in fig. 16, the second stopping member 260 includes a third screw slider 261 and a fourth screw slider 262, a third retaining ring 263 is fixedly disposed on an outer side of the third screw slider 261 through a support rod, a fourth retaining ring 264 is fixedly disposed on an outer side of the fourth screw slider 262 through a support rod, one sides of the third retaining ring 263 and the fourth retaining ring 264, which are far away from the second sampling port 212, are connected through a second arc-shaped plate 265, a distance between the third retaining ring 263 and the fourth retaining ring 264 is adapted to a width twice of the first sampling port 211, and outer walls of the third retaining ring 263 and the fourth retaining ring 264 are in sealed and rotatable fit with an inner wall of the sampling tube 210;
as shown in fig. 17, the third stopping member 270 includes a fifth lead screw block 271, a sixth lead screw block 272 and a seventh lead screw block 273, a fifth baffle ring 274 is fixedly arranged on the outer side of the fifth screw rod sliding block 271 through a supporting rod, a sixth baffle ring 275 is fixedly arranged on the outer side of the sixth screw slide block 272 through a support rod, a seventh baffle ring 276 is fixedly arranged on the outer side of the seventh lead screw sliding block 273 through a support rod, the sides of the fifth retainer ring 274 and the sixth retainer ring 275 remote from the third thief hatch 213 are connected by a third arcuate plate 277, the sixth baffle ring 275 and the seventh baffle ring 276 are connected by a fourth arc-shaped plate 278 on the side far away from the third sampling port 213, the distance between the fifth baffle ring 274 and the sixth baffle ring 275 is adapted to the width of the third sampling port 213, the distance between the sixth baffle ring 275 and the seventh baffle ring 276 is adapted to the width of the third sampling port 213;
the driving motor 230 drives the first blocking member 250, the second blocking member 260 and the third blocking member 270 to move, so as to realize the action of opening or closing the first sampling port, the second sampling port and the third sampling port individually or completely.
More specifically, during the use process, corresponding adjustment and control are performed according to the position to be detected, as shown in fig. 10, only the first sampling port 211 is opened, the second blocking member 260 blocks the second sampling port 212 at this time, and the third blocking member 270 blocks the third sampling port 213; correspondingly, as shown in fig. 11, only the second sampling port 212 is opened, the first blocking member 250 blocks the first sampling port 211, and the third blocking member 270 blocks the third sampling port 213; as shown in fig. 12, only the third sampling port 213 is opened, and the first blocking member 250 blocks the first sampling port 211 and the second blocking member 260 blocks the second sampling port 212; as shown in fig. 13, the first sampling port 211, the second sampling port 212 and the third sampling port 213 are all in an open communication state; as shown in fig. 14, the first sampling port 211, the second sampling port 212 and the third sampling port 213 are all in a closed state; corresponding inspection is carried out according to actual requirements, and the coverage and accuracy of inspection are effectively improved.
Further, the outer wall of intubate 241 is fixed and is equipped with two at least first sealing washer 242, first sealing washer 242 is followed the axial linear array of intubate 241 distributes, the bottom surface of ring flange 240 is fixed and is equipped with two at least second sealing washers 243, second sealing washer 243 radially establishes with the centre of a circle cover in proper order, strengthens the connection leakproofness of sampling structure and installing port, prevents that the flue gas from revealing.
The working principle is as follows:
when the smoke sampling detection is carried out, a worker determines a part needing sampling detection on an operation computer, then the first air pump, the second air pump and the linear sliding table are started, the opening and closing of the electromagnetic valves are coordinated, the electromagnets are in a power connection state, the smoke detection structure is driven to move to a corresponding position, the internal air pressure is detected and fed back through the first air pressure sensor and the second air pressure sensor, and the monitoring is convenient; secondly, adjusting the specific sampling position according to the actual detection requirement, rotating the corresponding driving motor of the sampling structure by a corresponding angle, connecting the corresponding exhaust pipe, enabling the smoke to enter the detection sealing cavity, detecting the entered smoke by the smoke detector, and transmitting the detection data to the control computer; after the detection is finished, closing the corresponding sampling structure and plugging the corresponding exhaust pipe, then starting the first air pump, the second air pump and the linear sliding table, and coordinating the opening and closing among the electromagnetic valves to enable the smoke detection structure to move to one side of the first end cover;
then, the first air pump pumps out the smoke in the detection sealing cavity through the third air pipe, so that the subsequent detection is prevented from being influenced; the control box is positioned above the wireless charger, and if the electric quantity of the internal storage battery is insufficient, the control box is electrified and can wirelessly charge the storage battery; if need carry out the hybrid detection time measuring to holistic flue gas, then at first need remove the flue gas detection structure to second end cover one side, communicate whole blast pipes after that, and the sample connection of each sample structure is in full open mode for the collecting pipe switches on with the flue is inside, restarts the third solenoid valve after that, makes and detects sealed chamber and the inside intercommunication of collecting pipe, and the flue gas detector detects whole flue gas, and with data transfer to control the computer can.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (6)
1. The utility model provides a distributing type flue gas sampling measuring device which characterized in that:
the sampling device comprises a plurality of sampling structures (200) arranged on a flue (100), wherein sampling parts of the sampling structures (200) extend into the flue (100), and the sampling structures (200) are uniformly arranged at intervals; exhaust pipes (201) are arranged on the sampling structure (200), each exhaust pipe (201) is communicated with the side wall of the collecting pipe (300), the collecting pipe (300) is fixed on the outer wall of the flue (100) through a pipe bracket, and a first electromagnetic valve (202) is arranged at one end, close to the sampling structure (200), of each exhaust pipe (201);
the flue gas detection device is characterized in that a flue gas detection structure (400) is arranged inside the collecting pipe (300), the flue gas detection structure (400) comprises a first partition plate (410) and a second partition plate (420), the first partition plate (410) and the second partition plate (420) are fixedly connected through a plurality of connecting rods (430), the outer wall of the first partition plate (410) and the outer wall of the second partition plate (420) are in sliding sealing fit with the inner wall of the collecting pipe (300), the first partition plate (410), the second partition plate (420), the connecting rods (430) and the inner wall of the collecting pipe (300) form a detection sealing cavity (440), a flue gas detector (450) is installed on the first partition plate (410), the probe end of the flue gas detector (450) extends into the detection sealing cavity (440), and a control box (460) is fixedly installed at the end part, far away from the first partition plate (410), of the flue gas detector (450), the wireless charging system is characterized in that a circuit board is arranged in the control box (460), a first controller, a wireless transceiver module, a storage battery and a wireless charging module are arranged on the circuit board, the wireless charging module is installed at the bottom of the control box (460), a wireless charger (510) is embedded and installed on the bottom surface of the end part of the collecting pipe (300), and when the control box (460) moves in place, the wireless charging module abuts against the top surface of the wireless charger (510) to realize wireless charging; an infrared sensor (470) is fixedly installed on the outer wall of the control box (460), a probe of the infrared sensor (470) is arranged towards the inner wall of the collecting pipe (300), a scavenging pipe (480) is further installed on the first partition plate (410), one end of the scavenging pipe (480) extends into the detection sealed cavity (440), and a third electromagnetic valve (481) is arranged on the scavenging pipe (480); the wireless transceiver module is in wireless signal transmission connection with an external control computer (520);
the two ends of the collecting pipe (300) are respectively provided with a first end cover (310) and a second end cover (320), the first end cover (310) is located at one end close to the first partition plate (410), a first air pressure sensor (311) is installed inside the first end cover (310), a second air pressure sensor (321) is installed inside the second end cover (320), a first air pump (610) and a second air pump (620) are respectively arranged on the outer sides of the two ends of the collecting pipe (300), the first air pump (610) and the second air pump (620) are installed on a supporting plate at the top of the flue (100), the supporting plate extends along the length direction of the flue (100), a first three-way pipe is installed at an air outlet of the first air pump (610), and the top of the collecting pipe (300) close to the first end cover (310) are communicated through a first air pipe (710), a second electromagnetic valve (711) is arranged on the first air pipe (710), a first air release pipe (760) is communicated with the first three-way pipe, and a fourth electromagnetic valve (761) is arranged on the first air release pipe (760); a second air pipe (720) and a third air pipe (730) are arranged on one side of the first air pipe (710), the second air pipe (720) and the third air pipe (730) are both communicated with the collecting pipe (300), when the smoke detection structure (400) is moved to a charging state, the third air pipe (730) is communicated with the detection sealing cavity (440), and the second air pipe (720) is positioned on one side of the first partition plate (410) far away from the connecting rod (420), the air inlets of the second air pipe (720), the third air pipe (730) and the first air pump (610) are communicated through a four-way pipe, a second air release pipe (770) is communicated with the four-way pipe, a fifth electromagnetic valve (771) is arranged on the second air release pipe (770), a sixth electromagnetic valve (721) is arranged on the second air pipe (720), and a seventh electromagnetic valve (731) is arranged on the third air pipe (730);
a second three-way pipe is installed at an air outlet of the second air pump (620), the second three-way pipe is communicated with the top, close to the second end cover (320), of the collecting pipe (300) through a fourth air pipe (740), an eighth electromagnetic valve (741) is arranged on the fourth air pipe (740), a third air release pipe (780) is communicated with the second three-way pipe, a ninth electromagnetic valve (781) is arranged on the third air release pipe (780), an air inlet of the second air pump (620) is communicated with the collecting pipe (300) through a fifth air pipe (750) on one side of the fourth air pipe (740), and a tenth electromagnetic valve (751) is arranged on the fifth air pipe (750); the first air pump, the second air pump, the first electromagnetic valve, the second electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve, the seventh electromagnetic valve, the eighth electromagnetic valve, the ninth electromagnetic valve and the tenth electromagnetic valve are all electrically connected with a second controller (530), and the second controller (530) is in wireless transmission signal connection with the control computer (520).
2. A distributed flue gas sampling and measuring device according to claim 1, wherein:
the below of collecting pipe (300) is equipped with sharp slip table (800), sharp slip table (800) are followed the length direction of collecting pipe (300) extends, the top surface of sharp slip table (800) is fixed and is equipped with installing frame (810), installing frame (810) slide to be located on collecting pipe (300), the inside of installing frame (810) is inlayed and is established and install electro-magnet (820), electro-magnet (820) are arc column structure, and support and hold the outer wall of collecting pipe (300) slides, second baffle (420) are kept away from fixed magnet piece (490) that is equipped with on the wall of connecting rod (430), magnet piece (490) with connect after the electricity cooperation is inhaled to electro-magnet (820).
3. A distributed flue gas sampling and measuring device according to claim 1, wherein:
an eleventh electromagnetic valve (203) is further arranged on each exhaust pipe (201), and the eleventh electromagnetic valve (203) is arranged at one end, close to the collecting pipe (300), of each exhaust pipe (201).
4. A distributed flue gas sampling and measuring device according to claim 1, wherein:
the outer side of the smoke detector (450) is sleeved with a guide ring (451), the guide ring (451) is fixed to the outer side of the smoke detector (450) through a support rod, and the outer wall of the guide ring (451) is matched with the inner wall of the collecting pipe (300).
5. A distributed flue gas sampling and measuring device according to claim 1, wherein:
the sampling structure (200) comprises a sampling tube (210), a third end cover and a fourth end cover are respectively installed at two ends of the sampling tube (210), a lead screw (220) is arranged inside the sampling tube (210), the lead screw (220) is erected between the third end cover and the fourth end cover through a sealing bearing, the top end of the lead screw (220) penetrates through the top of the third end cover, a driving motor (230) is installed at the top of the third end cover, and an output shaft of the driving motor (230) is connected with the top end of the lead screw (220) through a coupler; a flange plate (240) is fixedly arranged on the outer wall, close to the third end cover, of the sampling tube (210), an insertion tube (241) is fixedly arranged on the bottom surface of the flange plate (240), the inner wall of the insertion tube (241) is tightly attached to the sampling tube (210), the outer wall of the insertion tube (241) is matched with the mounting opening of the flue (100), and the flange plate (240) is fixed on the outer side of the mounting opening through screws; the exhaust pipe (201) is positioned on one side, close to the third end cover, of the flange plate (240);
the outer wall of the sampling tube (210) is provided with a first sampling port (211), a second sampling port (212) and a third sampling port (213) which are uniformly arranged at intervals, the first sampling port (211), the second sampling port (212) and the third sampling port (213) are arranged corresponding to the upper part, the middle part and the bottom part of the inner radial direction of the flue (100), the screw rod (220) is provided with a first blocking piece (250), a second blocking piece (260) and a third blocking piece (270), and the first blocking piece (250), the second blocking piece (260) and the third blocking piece (270) are arranged corresponding to the first sampling port (211), the second sampling port (212) and the third sampling port (213) in sequence;
the first blocking piece (250) comprises a first lead screw sliding block (251) and a second lead screw sliding block (252), a first blocking ring (253) is fixedly arranged on the outer side of the first lead screw sliding block (251) through a supporting rod, a second blocking ring (254) is fixedly arranged on the outer side of the second lead screw sliding block (252) through a supporting rod, one side, far away from the first sampling opening (211), of the first blocking ring (253) and one side, far away from the second sampling opening (211), of the second blocking ring (254) are connected through a first arc-shaped plate (255), the distance between the first blocking ring (253) and the second blocking ring (254) is matched with the width of the first sampling opening (211), and the outer walls of the first blocking ring (253) and the second blocking ring (254) are in sealed rotating fit with the inner wall of the sampling pipe (210);
the second blocking part (260) comprises a third screw rod sliding block (261) and a fourth screw rod sliding block (262), a third blocking ring (263) is fixedly arranged on the outer side of the third screw rod sliding block (261) through a supporting rod, a fourth blocking ring (264) is fixedly arranged on the outer side of the fourth screw rod sliding block (262) through a supporting rod, one side, far away from the second sampling port (212), of the third blocking ring (263) and one side, far away from the fourth blocking ring (264), of the fourth blocking ring (262) are connected through a second arc-shaped plate (265), the distance between the third blocking ring (263) and the fourth blocking ring (264) is matched with the width twice of the first sampling port (211), and the outer walls of the third blocking ring (263) and the fourth blocking ring (264) are in sealed rotating fit with the inner wall of the sampling pipe (210);
the third blocking part (270) comprises a fifth screw slide block (271), a sixth screw slide block (272) and a seventh screw slide block (273), a fifth blocking ring (274) is fixedly arranged on the outer side of the fifth screw slide block (271) through a support rod, a sixth blocking ring (275) is fixedly arranged on the outer side of the sixth screw slide block (272) through a support rod, a seventh blocking ring (276) is fixedly arranged on the outer side of the seventh screw slide block (273) through a support rod, one sides of the fifth blocking ring (274) and the sixth blocking ring (275) far away from the third sampling port (213) are connected through a third arc-shaped plate (277), the sixth blocking ring (275) and one side of the seventh blocking ring (276) far away from the third sampling port (213) are connected through a fourth arc-shaped plate (278), and the distance between the fifth blocking ring (274) and the sixth blocking ring (275) is matched with the width of the third sampling port (213), the distance between the sixth baffle ring (275) and the seventh baffle ring (276) is adapted to the width of the third sampling port (213);
the driving motor (230) drives the first blocking part (250), the second blocking part (260) and the third blocking part (270) to move, and the actions of independently opening or fully closing the first sampling port, the second sampling port and the third sampling port are achieved.
6. The distributed flue gas sampling and measuring device of claim 5, wherein:
the fixed at least two first sealing washer (242) that are equipped with of outer wall of intubate (241), first sealing washer (242) are followed the axial linear array of intubate (241) distributes, the bottom surface of ring flange (240) is fixed and is equipped with at least two second sealing washer (243), second sealing washer (243) are radially established with the centre of a circle cover in proper order.
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| CN112834704B (en) | 2022-08-23 |
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