CN113223272B - Early warning system and method for toxic and harmful gas - Google Patents
Early warning system and method for toxic and harmful gas Download PDFInfo
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- CN113223272B CN113223272B CN202110494387.0A CN202110494387A CN113223272B CN 113223272 B CN113223272 B CN 113223272B CN 202110494387 A CN202110494387 A CN 202110494387A CN 113223272 B CN113223272 B CN 113223272B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0012—In-line filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/14—Toxic gas alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Abstract
The invention belongs to the technical field of gas monitoring, in particular to a toxic and harmful gas early warning system and a method, which comprises a monitoring unit, a data transmission unit, a processing control unit, an alarm unit and a purification unit; wherein: a monitoring unit: monitoring toxic and harmful gas in real time through a gas monitoring sensor, and feeding back data to a data processing unit; the gas monitoring sensor can monitor the concentration value of the toxic and harmful gas in real time, and feed the data back to the processor, when the concentration exceeds the standard, the controller controls the audible and visual alarm to give an alarm to remind a worker, and simultaneously controls the air suction equipment to operate in an accelerated manner to filter and purify the toxic and harmful gas passing through the gas purification device in an accelerated manner.
Description
Technical Field
The invention relates to the technical field of gas monitoring, in particular to a toxic and harmful gas early warning system and a method.
Background
The gas detection system is generally divided into a control part, a sensor part and a management platform part, and can realize the functions of remote unattended operation, real-time data return, overrun alarm, equipment linkage, data analysis and the like.
The gas detection system designs a harmful gas concentration detection alarm system based on a wireless sensor network for different monitoring points, the system comprises a host node responsible for communicating with a PC and a plurality of data acquisition node modules, each data acquisition node acquires the concentration data of toxic and harmful gases through a gas sensor, the data acquisition nodes form nodes through the modules, and then a wireless sensor network system is formed by a plurality of nodes and a main node, however, the existing gas detection system can not carry out targeted rapid filtration and purification when the concentration of the toxic and harmful gases exceeds the standard; therefore, a system and a method for early warning of toxic and harmful gases are provided to solve the above problems.
Disclosure of Invention
The invention provides a toxic and harmful gas early warning system and method, aiming at making up for the defects of the prior art and solving the problem that the conventional gas detection system cannot perform targeted rapid filtration and purification when the concentration of toxic and harmful gas exceeds the standard.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a toxic and harmful gas early warning system, which comprises a monitoring unit, a data transmission unit, a processing control unit, an alarm unit and a purification unit, wherein the monitoring unit is used for monitoring the toxic and harmful gas; wherein:
a monitoring unit: monitoring toxic and harmful gas in real time through a gas monitoring sensor, and feeding back data to a data processing unit;
a data transmission unit: transmitting the data of the monitoring unit to a processing control unit through wireless relay equipment;
a processing control unit: the processing controller receives and processes data transmitted by the wireless relay equipment in real time, and controls the alarm unit and the purification unit at the same time;
an alarm unit: an audible and visual alarm is simultaneously sent to the staff through an audible and visual alarm in the alarm unit to remind the staff;
a purification unit: toxic and harmful gas is filtered and purified by the air suction equipment and the gas purification device and then is discharged.
Preferably, the gas purification device comprises an installation seat, a purification box, a motor and a rotating shaft, wherein the purification box is fixedly connected to the top end face of the installation seat, the motor is fixedly installed in an inner cavity of the installation seat, the output end of the motor is fixedly connected with the rotating shaft, a first bevel gear is sleeved on the rotating shaft and meshed with a second bevel gear, the second bevel gear is sleeved with the rotating shaft, the bottom end of the rotating shaft is rotatably connected with a liquid conveying pipe through a sealing bearing, the other end of the liquid conveying pipe is externally connected with liquid supply equipment, the top end of the rotating shaft extends into the purification box and is rotatably connected with the bottom end of the sealing partition plate through a bearing, the sealing partition plate is fixedly connected with the inner wall of the purification box, a first stirring rod and a second stirring rod are fixedly connected to two sides of the rotating shaft, the first stirring rod and the second stirring rod are hollow rods and are communicated, a plurality of small spray heads are uniformly and fixedly connected to the first stirring rod and the second stirring rod, an air inlet pipe is fixedly connected to the left bottom of the purification box, an outlet pipe is fixedly connected to the right top of the purification box, an air outlet pipe is fixedly connected to the external device, and a liquid outlet pipe is fixedly connected to the right bottom of the purification box; poisonous and harmful gas passes through the intake pipe and gets into the purifying box, the rethread outlet duct is discharged, it rotates to drive the pivot through the motor, make the bevel gear that cup joints with the pivot drive bevel gear two and rotate, and then make the dwang that cup joints with bevel gear two drive puddler one and puddler two and rotate the organic purifying solution in the purifying box together and stir, thereby the intensive mixing of poisonous and harmful gas and organic purifying solution has been realized, organic purifying solution is to poisonous and harmful gas's purifying effect has been improved, organic purifying solution can be continuous to carrying in the dwang through the transfer line, outwards spray organic purifying solution through a plurality of small-size shower nozzles on puddler one and the puddler two, organic purifying solution and poisonous and harmful gas's intensive mixing has been guaranteed.
The sealing partition plate is symmetrically and fixedly connected with two vent pipes, the vent pipes are in an inverted funnel shape, a threaded sleeve is arranged in the center of each vent pipe, a spring is fixedly connected to the bottom end face of the inner cavity of the threaded sleeve, the top end of the spring is fixedly connected with the bottom end of a T-shaped rod, the top end of the T-shaped rod penetrates through the top end of the threaded sleeve and is fixedly connected with the bottom end face of a sealing cover, the bottom of the sealing cover is attached to the top end of the vent pipe, the outer wall of the threaded sleeve is in threaded connection with a filter plate, the outer wall of the filter plate is tightly attached to the inner wall of the vent pipe, and the T-shaped rod is in sliding connection with the inner cavity of the threaded sleeve; can carry out prefiltration to poisonous and harmful gas through the filter that is equipped with on the breather pipe, upwards push open sealed lid when the gas in the breather pipe reachs a certain degree, gas is discharged from the gap between sealed lid and the breather pipe, T type pole with sealed lid bottom rigid coupling drives the spring and stretches, when the gas content in the breather pipe descends, the elastic potential energy of spring drives T type pole and slides down, and then make sealed lid laminate with the breather pipe again, the elastic potential energy through the spring makes sealed lid closely laminate with the breather pipe, it fully contacts with organic clean solution and filter to have ensured poisonous and harmful gas, the effect of filtration purification has been improved, through the screw-thread fit between filter and the threaded sleeve, the staff of being convenient for regularly dismantles the filter and washs.
The bottom end of the filter plate is attached to the top of the first mounting ring, the outer wall of the first mounting ring is in threaded connection with the inner wall of the vent pipe, a second mounting ring is arranged at the center of the first mounting ring and is in threaded connection with the threaded sleeve, and a connecting rod is fixedly connected between the first mounting ring and the second mounting ring; through the threaded connection between the mounting ring I and the vent pipe, the mounting ring I is convenient to detach from the vent pipe, so that the filter plate is convenient to detach, and the threaded sleeve is convenient to fix in the vent pipe through the threaded connection between the mounting ring II and the threaded sleeve.
A support plate is fixedly connected to the inner wall of the purification box above the sealing partition plate, a thread groove is formed in the top end face of the support plate, the top end of the support plate is attached to the bottom end of the fixing ring, the inner wall of the fixing ring is fixedly connected with the outer wall of the filter frame, through holes are formed in the top end face and the bottom end face of the filter frame, a bolt is connected to the fixing ring in a threaded mode, and the bottom end of the bolt is connected with the thread groove in a threaded mode; the active carbon filled in the filter frame can further filter toxic and harmful gas, and through the cooperation between the bolt and the thread groove, the staff of being convenient for installs the fixed ring on the support plate, and then the staff of being convenient for regularly will filter the filter frame and change, guarantees the filter effect of active carbon.
The top end of the support plate is fixedly connected with a positioning block, the positioning block is arranged on the inner side of the thread groove, the bottom end face of the fixing ring is provided with a positioning groove, the inner wall of the positioning groove is fixedly connected with a rubber block, the positioning block is connected with the positioning groove in a sliding mode, and the rubber block is attached to the positioning block; through the sliding fit between the locating piece on the extension board and the constant head tank of solid fixed ring bottom, play assistance-localization real-time's effect to being connected of solid fixed ring and extension board, laminate mutually with the locating piece through the rubber block that is equipped with in the constant head tank, guaranteed the leakproofness between solid fixed ring and the extension board, ensured that poisonous and harmful gas only can follow the filtration frame and pass through.
The top end of the purification box is in threaded connection with a top cover, and a sealing rubber pad is arranged between the top cover and the purification box; through the threaded connection between top cap and the purifying box, the staff of being convenient for is changed and is washd filter frame and filter after dismantling the top cap.
The invention relates to a method for early warning toxic and harmful gases, which comprises the following steps:
s1, monitoring the concentration of toxic and harmful gas in real time through a gas monitoring sensor, and transmitting data to wireless relay equipment;
s2, feeding back the data to a processor through the wireless relay equipment, and processing and judging the data by the processor to determine whether the concentration of the toxic and harmful gas reaches a preset concentration value;
s3, when the concentration of toxic and harmful gases exceeds the standard, the controller controls the audible and visual alarm to give an alarm to remind a worker, and when the concentration of the toxic and harmful gases does not reach a preset value, the audible and visual alarm is in a silent state;
and S4, when the concentration of the toxic and harmful gas exceeds the standard, the controller simultaneously controls the air suction equipment in the gas purification unit to operate in an accelerating mode, the toxic and harmful gas passing through the gas purification device is filtered and purified, and when the concentration of the toxic and harmful gas does not reach a preset value, the air suction equipment operates normally.
The invention has the advantages that:
1. according to the early warning system and method for toxic and harmful gases, the concentration value of the toxic and harmful gases can be monitored in real time through the gas monitoring sensor, data are fed back to the processor, when the concentration exceeds the standard, the audible and visual alarm is controlled by the controller to give an alarm to remind a worker, and meanwhile, the air suction equipment is controlled to operate in an accelerated mode to filter and purify the toxic and harmful gases passing through the gas purification device in an accelerated mode;
2. according to the early warning system and method for the toxic and harmful gases, the toxic and harmful gases are fully mixed with the organic purification solution through the cooperation of the motor, the rotating shaft, the first bevel gear, the second bevel gear, the rotating rod, the first stirring rod and the second stirring rod, the purification effect of the organic purification solution on the toxic and harmful gases is improved, the toxic and harmful gases are fully contacted with the organic purification solution and the filter plate through the cooperation of the threaded sleeve, the spring, the T-shaped rod and the sealing cover, the filtration and purification effects are further improved, and through the cooperation of the first mounting ring, the second mounting ring, the threaded sleeve, the bolt, the fixing ring and the support plate, workers can replace and clean the filter frame and the filter plate regularly, and the filtration effect is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a block diagram showing the overall structure of a first embodiment;
FIG. 2 is a flowchart of an overall method in a first embodiment;
FIG. 3 is a schematic view showing the internal structure of the gas purification apparatus according to the first embodiment;
FIG. 4 is a schematic view of a portion of the enlarged structure at A in FIG. 3;
FIG. 5 is a schematic view of a portion of the enlarged structure at B in FIG. 3;
FIG. 6 is a schematic partial perspective view according to a first embodiment;
fig. 7 is a partial structural schematic diagram of the second embodiment.
In the figure: 1. a mounting seat; 2. a purification box; 3. a motor; 4. a rotating shaft; 5. a first bevel gear; 6. a second bevel gear; 7. rotating the rod; 8. a transfusion tube; 9. a first stirring rod; 10. a second stirring rod; 11. sealing the partition plate; 12. a breather pipe; 13. mounting a ring I; 14. a connecting rod; 15. a threaded sleeve; 16. a spring; 17. a second mounting ring; 18. a T-shaped rod; 19. a sealing cover; 20. a filter plate; 21. a support plate; 22. positioning blocks; 23. a fixing ring; 24. a filter frame; 25. positioning a groove; 26. a rubber block; 27. a thread groove; 28. a bolt; 29. a top cover; 30. an air inlet pipe; 31. an air outlet pipe; 32. a sealing groove; 33. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 to 6, the early warning system for toxic and harmful gases according to the present invention includes a monitoring unit, a data transmission unit, a processing control unit, an alarm unit and a purification unit; wherein:
a monitoring unit: monitoring toxic and harmful gas in real time through a gas monitoring sensor, and feeding back data to a data processing unit;
a data transmission unit: transmitting the data of the monitoring unit to a processing control unit through wireless relay equipment;
a process control unit: the processing controller receives and processes data transmitted by the wireless relay equipment in real time, and controls the alarm unit and the purification unit at the same time;
an alarm unit: an audible and visual alarm is simultaneously sent to the staff through an audible and visual alarm in the alarm unit to remind the staff;
a purification unit: toxic and harmful gas is filtered and purified by the air suction equipment and the gas purification device and then is discharged.
The gas purification device comprises an installation seat 1, a purification box 2, a motor 3 and a rotating rod 7, wherein the purification box 2 is fixedly connected to the top end face of the installation seat 1, the motor 3 is fixedly installed in an inner cavity of the installation seat 1, the output end of the motor 3 is fixedly connected with the rotating shaft 4, a bevel gear 5 is sleeved on the rotating shaft 4, the bevel gear 5 is meshed with a bevel gear 6, the bevel gear 6 is sleeved with the rotating rod 7, the bottom end of the rotating rod 7 is rotatably connected with a liquid conveying pipe 8 through a sealing bearing, the other end of the liquid conveying pipe 8 is externally connected with liquid supply equipment, the top end of the rotating rod 7 extends into the purification box 2 and is rotatably connected with the bottom end of a sealing partition plate 11 through a bearing, the sealing partition plate 11 is fixedly connected with the inner wall of the purification box 2, a first stirring rod 9 and a second stirring rod 10 are fixedly connected to both sides of the rotating rod 7, the first stirring rod 9 and the second stirring rod 10 are hollow rods and communicated, a plurality of small spray nozzles are uniformly fixedly connected to the first stirring rod 9 and the second stirring rod 10, an air inlet pipe 30 is fixedly connected to the bottom of the left side of the purification box 2, a right side of the purification box 2 is fixedly connected with a purification outlet pipe 31, and a right side of the purification box 2 is fixedly connected with a purification outlet pipe; during operation, poisonous and harmful gas passes through intake pipe 30 and gets into purifying box 2, 31 discharges of rethread outlet duct, it rotates to drive pivot 4 through motor 3, make bevel gear 5 that cup joints with pivot 4 drive bevel gear two 6 and rotate, and then make dwang 7 that cup joints with bevel gear two 6 drive puddler one 9 and puddler two 10 and rotate organic purifying solution in purifying box 2 together and stir, thereby poisonous and harmful gas and organic purifying solution's intensive mixing has been realized, organic purifying solution is to poisonous and harmful gas's purifying effect has been improved, can be continuous carry organic purifying solution in dwang 7 through transfer line 8, outwards spray organic purifying solution through a plurality of small-size shower nozzles on puddler one 9 and the puddler two 10, organic purifying solution and poisonous and harmful gas's intensive mixing has been guaranteed.
The two vent pipes 12 are symmetrically and fixedly connected to the seal partition plate 11, the vent pipes 12 are in an inverted funnel shape, a threaded sleeve 15 is arranged at the center of each vent pipe 12, a spring 16 is fixedly connected to the bottom end face of an inner cavity of the threaded sleeve 15, the top end of the spring 16 is fixedly connected to the bottom end of a T-shaped rod 18, the top end of the T-shaped rod 18 penetrates through the top end of the threaded sleeve 15 and is fixedly connected to the bottom end face of a seal cover 19, the bottom of the seal cover 19 is attached to the top end of the vent pipe 12, the outer wall of the threaded sleeve 15 is in threaded connection with a filter plate 20, the outer wall of the filter plate 20 is tightly attached to the inner wall of the vent pipe 12, and the T-shaped rod 18 is in sliding connection with the inner cavity of the threaded sleeve 15; during operation, filter 20 through being equipped with on the breather pipe 12 can carry out prefiltration to poisonous and harmful gas, gaseous when the breather pipe 12 in reachs the certain degree the sealed 19 that backs up, gaseous gap discharge between sealed 19 and the breather pipe 12 of following, T type pole 18 with sealed 19 bottom rigid couplings drives spring 16 tensile, when the gas content in the breather pipe 12 descends, spring 16's elastic potential energy drives T type pole 18 and slides downwards, and then make sealed 19 laminate with breather pipe 12 again, elastic potential energy through spring 16 makes sealed 19 and breather pipe 12 closely laminate, guaranteed that poisonous and harmful gas fully contacts with organic purified solution and filter 20, the effect of filtration purification has been improved, through the screw-thread fit between filter 20 and the threaded sleeve 15, the staff of being convenient for regularly dismantles filter 20 and washs.
The bottom end of the filter plate 20 is attached to the top of the first mounting ring 13, the outer wall of the first mounting ring 13 is in threaded connection with the inner wall of the vent pipe 12, a second mounting ring 17 is arranged at the center of the first mounting ring 13, the second mounting ring 17 is in threaded connection with the threaded sleeve 15, and a connecting rod 14 is fixedly connected between the first mounting ring 13 and the second mounting ring 17; during operation, through the threaded connection between the first mounting ring 13 and the vent pipe 12, the first mounting ring 13 can be conveniently detached from the vent pipe 12, so that the filter plate 20 can be conveniently detached, and through the threaded connection between the second mounting ring 17 and the threaded sleeve 15, the threaded sleeve 15 can be conveniently fixed in the vent pipe 12.
A support plate 21 is fixedly connected to the inner wall of the purification box 2 above the sealing partition plate 11, a thread groove 27 is formed in the top end face of the support plate 21, the top end of the support plate 21 is attached to the bottom end of the fixing ring 23, the inner wall of the fixing ring 23 is fixedly connected with the outer wall of the filter frame 24, through holes are formed in the top end face and the bottom end face of the filter frame 24, a bolt 28 is connected to the fixing ring 23 in a threaded manner, and the bottom end of the bolt 28 is connected with the thread groove 27 in a threaded manner; during operation, can further filter poisonous and harmful gas through the active carbon of crossing the interior packing of filter frame 24, through the cooperation between bolt 28 and thread groove 27, the staff of being convenient for will fix solid fixed ring 23 and install on extension board 21, and then the staff of being convenient for will filter frame 24 regularly and change, guarantee the filter effect of active carbon.
The top end of the support plate 21 is fixedly connected with a positioning block 22, the positioning block 22 is arranged on the inner side of a thread groove 27, the bottom end face of the fixing ring 23 is provided with a positioning groove 25, the inner wall of the positioning groove 25 is fixedly connected with a rubber block 26, the positioning block 22 is connected with the positioning groove 25 in a sliding manner, and the rubber block 26 is attached to the positioning block 22; during operation, through the sliding fit between the locating piece 22 on the extension board 21 and the locating slot 25 at the bottom end of the fixing ring 23, the effect of auxiliary location is played to the connection of the fixing ring 23 and the extension board 21, and the rubber block 26 arranged in the locating slot 25 is attached to the locating piece 22, so that the sealing performance between the fixing ring 23 and the extension board 21 is ensured, and the toxic and harmful gas can only pass through the filter frame 24.
The top end of the purification box 2 is in threaded connection with a top cover 29, and a sealing rubber gasket is arranged between the top cover 29 and the purification box 2; during operation, through the threaded connection between the top cover 29 and the purifying box 2, the filter frame 24 and the filter plate 20 can be conveniently replaced and cleaned after the top cover 29 is detached by a worker.
The invention relates to a method for early warning toxic and harmful gases, which comprises the following steps:
s1, monitoring the concentration of toxic and harmful gas in real time through a gas monitoring sensor, and transmitting data to wireless relay equipment;
s2, feeding back the data to a processor through the wireless relay equipment, and processing and judging the data by the processor to determine whether the concentration of the toxic and harmful gas reaches a preset concentration value;
s3, when the concentration of the toxic and harmful gas exceeds the standard, the controller controls the audible and visual alarm to give an alarm to remind a worker, and when the concentration of the toxic and harmful gas does not reach a preset value, the audible and visual alarm is in a silent state;
and S4, when the concentration of the toxic and harmful gas exceeds the standard, the controller simultaneously controls the air suction equipment in the gas purification unit to operate in an accelerating mode, the toxic and harmful gas passing through the gas purification device is filtered and purified, and when the concentration of the toxic and harmful gas does not reach a preset value, the air suction equipment operates normally.
Example two
Referring to fig. 7, a first comparative example is shown as another embodiment of the present invention; an annular sealing groove 32 is formed in the top end of the vent pipe 12, a sealing ring 33 is fixedly connected to the bottom end face of the sealing cover 19, and the sealing ring 33 is attached to the sealing groove 32; when the air sealing device works, the sealing ring 33 arranged at the bottom end of the sealing cover 19 is matched with the sealing groove 32 on the vent pipe 12, so that the sealing performance when the sealing cover 19 is attached to the vent pipe 12 is ensured.
The working principle is that the poisonous and harmful gas enters the purifying box 2 through the air inlet pipe 30 and is discharged through the air outlet pipe 31, the rotating shaft 4 is driven to rotate by the motor 3, the bevel gear I5 sleeved with the rotating shaft 4 drives the bevel gear II 6 to rotate, the rotating rod 7 sleeved with the bevel gear II 6 drives the stirring rod I9 and the stirring rod II 10 to rotate together to stir the organic purifying solution in the purifying box 2, so that the poisonous and harmful gas and the organic purifying solution are fully mixed, the purifying effect of the organic purifying solution on the poisonous and harmful gas is improved, the organic purifying solution can be continuously conveyed into the rotating rod 7 through the liquid conveying pipe 8, the organic purifying solution is sprayed outwards through a plurality of small-sized spray heads on the stirring rod I9 and the stirring rod II 10, and the full mixing of the organic purifying solution and the poisonous and harmful gas is ensured, the filter plate 20 arranged on the vent pipe 12 can primarily filter poisonous and harmful gas, when the gas in the vent pipe 12 reaches a certain degree, the seal cover 19 is upwards pushed open, the gas is discharged from a gap between the seal cover 19 and the vent pipe 12, the T-shaped rod 18 fixedly connected with the bottom end of the seal cover 19 drives the spring 16 to stretch, when the gas content in the vent pipe 12 is reduced, the elastic potential energy of the spring 16 drives the T-shaped rod 18 to slide downwards, so that the seal cover 19 is attached to the vent pipe 12 again, the seal cover 19 is tightly attached to the vent pipe 12 through the elastic potential energy of the spring 16, the poisonous and harmful gas is ensured to be fully contacted with the organic purification solution and the filter plate 20, the filtering and purifying effects are improved, through the thread fit between the filter plate 20 and the threaded sleeve 15, a worker can conveniently detach and clean the filter plate 20 at regular time, through the thread connection between the mounting ring I13 and the vent pipe 12, the mounting ring I13 is convenient to detach from the ventilation pipe 12, the filter plate 20 is convenient to detach, the mounting ring II 17 is in threaded connection with the threaded sleeve 15, the threaded sleeve 15 is convenient to fix in the ventilation pipe 12, toxic and harmful gas can be further filtered through activated carbon filled in the filter frame 24, through the cooperation between the bolt 28 and the threaded groove 27, a worker can conveniently mount the fixing ring 23 on the support plate 21, the worker can replace the filter frame 24 regularly, the filtering effect of the activated carbon is guaranteed, through sliding fit between the positioning block 22 on the support plate 21 and the positioning groove 25 at the bottom end of the fixing ring 23, the effect of auxiliary positioning is achieved for connection between the fixing ring 23 and the support plate 21, the rubber block 26 and the positioning block 22 which are arranged in the positioning groove 25 are attached to each other, the sealing performance between the fixing ring 23 and the support plate 21 is guaranteed, the toxic and harmful gas can only pass through the filter frame 24, through threaded connection between the top cover 29 and the purification box 2, and the filter frame 24 and the filter plate 20 can be replaced and cleaned after the worker detaches the top cover 29.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (2)
1. The utility model provides a poisonous and harmful gas's early warning system which characterized in that: comprises a monitoring unit, a data transmission unit, a processing control unit, an alarm unit and a purification unit; wherein:
a monitoring unit: monitoring toxic and harmful gas in real time through a gas monitoring sensor, and feeding back data to a data processing unit;
a data transmission unit: transmitting the data of the monitoring unit to a processing control unit through wireless relay equipment;
a processing control unit: the processing controller receives and processes data transmitted by the wireless relay equipment in real time, and controls the alarm unit and the purification unit at the same time;
an alarm unit: an audible and visual alarm is simultaneously sent to the staff through an audible and visual alarm in the alarm unit to remind the staff;
a purification unit: filtering and purifying toxic and harmful gas by using air suction equipment and a gas purification device, and then discharging;
the gas purification device comprises a mounting seat (1), a purification box (2), a motor (3) and a rotating rod (7), wherein the purification box (2) is fixedly connected to the top end surface of the mounting seat (1), the motor (3) is fixedly installed in the inner cavity of the mounting seat (1), the output end of the motor (3) is fixedly connected with a rotating shaft (4), a first bevel gear (5) is sleeved on the rotating shaft (4), the first bevel gear (5) is meshed with a second bevel gear (6) and is connected with the second bevel gear (6), the second bevel gear (6) is sleeved with the rotating rod (7), the bottom end of the rotating rod (7) is rotatably connected with a liquid conveying pipe (8) through a sealing bearing, the other end of the liquid conveying pipe (8) is externally connected with liquid supply equipment, the top end of the rotating rod (7) extends into the purification box (2) and is rotatably connected with the bottom end of a sealing partition plate (11) through a bearing, the sealing partition plate (11) is fixedly connected with the inner wall of the purification box (2), a first stirring rod (9) and a second stirring rod (10) are fixedly connected to the two stirring rods (9) on both sides of the purification box (7), and a plurality of the first stirring rod (10) are uniformly connected with a small-type stirring rod (30) and a plurality of stirring rod (10) fixedly connected with a first stirring rod (10) and a plurality of stirring pipe fixedly connected with a plurality of stirring pipe (30) which are uniformly connected with a plurality of stirring rod fixedly connected with a plurality of stirring pipe (10), the top of the right side of the purification box (2) is fixedly connected with an air outlet pipe (31), and the bottom of the right side of the purification box (2) is fixedly connected with a liquid outlet pipe;
the filter plate is characterized in that two vent pipes (12) are symmetrically and fixedly connected to the sealing partition plate (11), the vent pipes (12) are in an inverted funnel shape, a threaded sleeve (15) is arranged at the center of each vent pipe (12), a spring (16) is fixedly connected to the bottom end face of the inner cavity of the threaded sleeve (15), the top end of the spring (16) is fixedly connected with the bottom end of a T-shaped rod (18), the top end of the T-shaped rod (18) penetrates through the top end of the threaded sleeve (15) and is fixedly connected with the bottom end face of a sealing cover (19), the bottom of the sealing cover (19) is attached to the top end of each vent pipe (12), the outer wall of the threaded sleeve (15) is in threaded connection with the filter plate (20), the outer wall of the filter plate (20) is tightly attached to the inner wall of the vent pipe (12), and the T-shaped rod (18) is in sliding connection with the inner cavity of the threaded sleeve (15);
the bottom end of the filter plate (20) is attached to the top of the first mounting ring (13), the outer wall of the first mounting ring (13) is in threaded connection with the inner wall of the vent pipe (12), a second mounting ring (17) is arranged at the center of the first mounting ring (13), the second mounting ring (17) is in threaded connection with the threaded sleeve (15), and a connecting rod (14) is fixedly connected between the first mounting ring (13) and the second mounting ring (17);
a support plate (21) is fixedly connected to the inner wall of the purification box (2) above the sealing partition plate (11), a thread groove (27) is formed in the top end face of the support plate (21), the top end of the support plate (21) is attached to the bottom end of the fixing ring (23), the inner wall of the fixing ring (23) is fixedly connected with the outer wall of the filter frame (24), through holes are formed in the top end face and the bottom end face of the filter frame (24), a bolt (28) is connected to the fixing ring (23) in a threaded mode, and the bottom end of the bolt (28) is connected with the thread groove (27) in a threaded mode;
the top end of the support plate (21) is fixedly connected with a positioning block (22), the positioning block (22) is arranged on the inner side of a thread groove (27), a positioning groove (25) is formed in the bottom end face of the fixing ring (23), a rubber block (26) is fixedly connected to the inner wall of the positioning groove (25), the positioning block (22) is connected with the positioning groove (25) in a sliding mode, and the rubber block (26) is attached to the positioning block (22);
the top end of the purifying box (2) is in threaded connection with a top cover (29), and a sealing rubber pad is arranged between the top cover (29) and the purifying box (2).
2. A method for early warning of poisonous and harmful gas, which uses a poisonous and harmful gas early warning system as claimed in claim 1, the method comprising the steps of:
s1, monitoring the concentration of toxic and harmful gas in real time through a gas monitoring sensor, and transmitting data to wireless relay equipment;
s2, feeding back the data to a processor through the wireless relay equipment, and processing and judging the data by the processor to determine whether the concentration of the toxic and harmful gas reaches a preset concentration value;
s3, when the concentration of the toxic and harmful gas exceeds the standard, the controller controls the audible and visual alarm to give an alarm to remind a worker, and when the concentration of the toxic and harmful gas does not reach a preset value, the audible and visual alarm is in a silent state;
and S4, when the concentration of the toxic and harmful gas exceeds the standard, the controller simultaneously controls the air suction equipment in the gas purification unit to operate in an accelerating mode, the toxic and harmful gas passing through the gas purification device is filtered and purified, and when the concentration of the toxic and harmful gas does not reach a preset value, the air suction equipment operates normally.
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