CN117782705B - Online sampling device and method for gas samples - Google Patents
Online sampling device and method for gas samples Download PDFInfo
- Publication number
- CN117782705B CN117782705B CN202410205647.1A CN202410205647A CN117782705B CN 117782705 B CN117782705 B CN 117782705B CN 202410205647 A CN202410205647 A CN 202410205647A CN 117782705 B CN117782705 B CN 117782705B
- Authority
- CN
- China
- Prior art keywords
- groove
- gas
- column
- fixedly connected
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims description 22
- 230000009471 action Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 151
- 230000008569 process Effects 0.000 description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Classifications
-
- 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
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of gas sampling, in particular to an online sampling device and a sampling method for a gas sample, wherein the online sampling device comprises a shell, an accommodating groove is cut on the upper end surface of the shell, a square groove is cut on the left end surface of the shell, a plug post is connected in a sliding manner in the square groove, and a plurality of communicated through holes are cut between the square groove and the accommodating groove; in this scheme through inserting the post and sliding in the square groove, thereby the rethread air supply mechanism air supply realizes supplying air in proper order in to a plurality of gas collection bottle and gathers gaseous, is convenient for control the collection time interval of two adjacent gas collection bottle through the rotational speed of control servo motor output, and then is convenient for gather gaseous sample in different time quantum automation.
Description
Technical Field
The invention relates to the technical field of gas sampling, in particular to an online sampling device and an online sampling method for a gas sample.
Background
The main components in the air are oxygen, nitrogen, carbon dioxide and the like, the main pollutants in the air are sulfur dioxide and the like, the gas sampling is a sampling mode of collecting the air into a container through a sampling pump, and the principle is the same when the harmful gases such as indoor formaldehyde and the like are sampled in order to monitor the air quality.
Most of the existing gas sampling modes are to sample by manually carrying sampling equipment into a field, and because the gas sampling needs to sample the air in different time periods, a sampler needs to sample the gas frequently to and fro the field for many times, which is time-consuming and labor-consuming and very troublesome.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an on-line sampling device and an on-line sampling method for a gas sample.
In order to achieve the above purpose, the invention adopts the following technical scheme: the gas sample on-line sampling device comprises a shell, wherein an accommodating groove is cut in the upper end face of the shell, a square groove is cut in the left end face of the shell, a plug post is connected in the square groove in a sliding mode, and a plurality of communicated through holes are cut between the square groove and the accommodating groove;
A plurality of gas collecting mechanisms are arranged in the accommodating groove and are used for storing gas samples, and the gas collecting mechanisms are respectively communicated with the through holes;
the rear end face of the shell is provided with an air supply mechanism which is used for sending the gas to be collected into the square groove;
A driving mechanism is arranged between the inserted column and the shell and is used for controlling the inserted column to slide left and right in the square groove;
The gas collecting mechanism comprises gas collecting cylinders, a plurality of plugging mechanisms are arranged on the lower sides of the gas collecting cylinders, and the plugging mechanisms are respectively used for sealing air inlets of the gas collecting cylinders.
Preferably, the lower inner wall fixedly connected with first connecting pipe of holding tank, first connecting pipe and through-hole are linked together, first connecting pipe internal thread connection has the second connecting pipe, the second connecting pipe is fixed to be linked together in the lower terminal surface of gas collection bottle, the air intake of gas collection bottle is fixed to be linked together and is had the second check valve, the air outlet of gas collection bottle is fixed to be linked together and is had first check valve.
Preferably, the air supply mechanism comprises a sampling pump, the sampling pump is fixedly connected to the rear end face of the shell, a plurality of second air inlet grooves are formed in the rear inner wall of the square groove, a plurality of first air inlet grooves are formed in the rear inner wall of the second air inlet grooves, an air outlet pipe of the sampling pump is communicated with the first air inlet grooves, and L-shaped air guide holes are formed in the inserting columns.
Preferably, the driving mechanism comprises a servo motor, the servo motor is fixedly connected to the left end face of the shell, a gear is fixedly connected to the output end of the servo motor, an installation groove is cut into the upper end face of the inserting column, a rack is fixedly connected to the lower inner wall of the installation groove, and the gear is connected to the rack in a meshed mode.
Preferably, the plugging mechanism comprises a rubber plate, a chute is cut on the lower inner wall of the square groove, a movable column is connected in the chute in a sliding manner, the rubber plate is fixedly connected to the upper end face of the movable column, a spring is fixedly connected to the lower end face of the movable column, the lower end of the spring is fixedly connected to the lower inner wall of the chute, a plurality of limiting components are arranged in the square groove, and the limiting components are respectively used for limiting the transverse movement of the movable columns.
Preferably, the limiting component comprises a rotating plate, a first storage groove is formed in the lower inner wall of the square groove, the left inner wall of the first storage groove is set to be an inclined plane, the lower end face of the rotating plate is located in the first storage groove and rotationally hinged between the front inner wall and the rear inner wall of the square groove, a second storage groove is formed in the lower inner wall of the first storage groove, an elastic sheet is fixedly connected to the left inner wall of the second storage groove, the other end of the elastic sheet is fixedly connected to the rotating plate, and an arc groove matched with the movable column is formed in the right end face of the inserting column.
Preferably, a plurality of the lower terminal surface of movable column all cuts has first circular slot, and is a plurality of the last inner wall of first circular slot all cuts has the second circular slot, and is a plurality of the equal sliding connection of first circular slot has the traction column, a plurality of the spring overlaps respectively and locates the outside of a plurality of traction columns, a plurality of the equal fixedly connected with traveller of up end of traction column, a plurality of the traveller respectively sliding connection in a plurality of second circular slot, a plurality of the lower inner wall of spout all cuts has the round hole, a plurality of the lower inner wall of round hole cuts has the accommodation chamber, a plurality of the traction column respectively sliding connection in a plurality of round holes, a plurality of the lower terminal surface fixedly connected with connecting plate of traction column, and the connecting plate is located the accommodation intracavity, the last inner wall fixedly connected with electric telescopic handle of accommodation chamber, electric telescopic handle's output fixedly connected with in the up end of connecting plate.
Preferably, the upper end face of the shell is rotationally hinged with a baffle, the left end face of the shell is fixedly connected with a first waterproof shell, the servo motor is located in the first waterproof shell, the inserting column penetrates through the first waterproof shell in a sliding mode, the rear end face of the shell is fixedly connected with a second waterproof shell, the sampling pump is located in the second waterproof shell, and the air inlet pipe of the sampling pump penetrates through the lower end face of the second waterproof shell.
Preferably, the lower inner wall of the accommodating groove is fixedly connected with a plurality of limiting rings, sealing covers are arranged in the limiting rings, and threads matched with the second connecting pipes are engraved on the inner walls of the sealing covers.
A sampling method of a gas sample on-line sampling device comprises the following steps:
Firstly, opening a baffle, rotatably taking down a plurality of sealing covers, respectively putting the sealing covers into a plurality of limiting rings, then rotating a plurality of gas collecting cylinders to enable the gas collecting cylinders to be respectively connected and fixed with a plurality of first connecting pipes, and finally closing the baffle;
Step two, a sampling pump is started to enable gas to be sent into a first air inlet groove, a servo motor is started to drive a plunger to slowly move from right to left in a square groove, a rotating plate is rotated to be sprung off under the action of an elastic sheet after the plunger is not limited, then an L-shaped air entraining hole is communicated with a second air inlet groove and a through hole, gas enters a gas collection bottle through the first air inlet groove to discharge original gas in the gas collection bottle, gas sample collection is achieved, the plunger continues to move until a rubber plate is not limited, the rubber plate slides upwards under the action of a spring to block a second connecting pipe, gas sampling collection is completed once, and the plunger continues to move and repeat until a plurality of gas collection bottles collect gas samples with different sampling times;
And thirdly, closing a servo motor and a sampling pump, opening a baffle in a rotating way, taking down a plurality of gas cylinders in a rotating way, respectively rotationally sealing a plurality of second connecting pipes through a plurality of sealing covers, closing the baffle in a rotating way, opening an electric telescopic rod to draw a rubber plate to reset into a sliding groove, opening the servo motor to enable an output end of the electric telescopic rod to reversely rotate so as to drive a plunger to move from left to right for reset, pushing the rotary plate to rotationally reset in the plunger moving process until the plunger cannot continue to move, closing the servo motor, and opening the electric telescopic rod to enable the connecting plate to move upwards for reset.
Compared with the prior art, the invention has the following beneficial effects:
in this scheme through inserting the post and sliding in the square groove, thereby the rethread air supply mechanism air supply realizes supplying air in proper order in to a plurality of gas collection bottle and gathers gaseous, is convenient for control the collection time interval of two adjacent gas collection bottle through the rotational speed of control servo motor output, and then is convenient for gather gaseous sample in different time quantum automation.
After the gas sample of one gas collecting bottle is collected, the gas collecting bottle is sealed through the plugging mechanism, so that the influence of gas entering the front gas collecting bottle when the gas sample is collected by the subsequent gas collecting bottle on the collection purity of the gas sample is avoided.
This device opens spacing subassembly before shutoff mechanism carries out the shutoff to be convenient for carry out spacingly to the movable column, and then be of value to avoid the rubber slab to upwards remove when the shutoff and take place the transverse inclination, and then be of value to avoid the rubber slab to block when upwards removing the inner wall can not with the second connecting pipe contact shutoff on the inserted column.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a first perspective cross-sectional view of the present invention;
FIG. 4 is an enlarged view at A of FIG. 3;
FIG. 5 is an enlarged view at B of FIG. 3;
FIG. 6 is a second perspective cross-sectional view of the present invention;
FIG. 7 is an enlarged view at C of FIG. 6;
FIG. 8 is a third perspective cross-sectional view of the present invention;
fig. 9 is an enlarged view of fig. 8 at D;
FIG. 10 is a fourth perspective cross-sectional view of the present invention;
FIG. 11 is a fifth perspective cross-sectional view of the present invention;
FIG. 12 is a perspective view of a movable column of the present invention;
fig. 13 is a flow chart of the method of the present invention.
In the figure: 1. a housing; 101. a square groove; 102. a receiving groove; 103. a through hole; 104. a baffle; 105. inserting a column; 106. an L-shaped air vent; 2. a gas collecting bottle; 201. a first one-way valve; 202. a second one-way valve; 203. a first connection pipe; 204. a second connection pipe; 205. a limiting ring; 206. sealing cover; 3. a rubber plate; 301. a movable column; 302. a spring; 303. a chute; 4. a spool; 401. a first circular groove; 402. a traction column; 403. a second circular groove; 404. a round hole; 405. a connecting plate; 406. a receiving chamber; 407. an electric telescopic rod; 5. a first storage tank; 501. a rotating plate; 502. a second storage tank; 503. a spring plate; 504. an arc-shaped groove; 6. a servo motor; 601. a gear; 602. a rack; 603. a mounting groove; 604. a first waterproof case; 7. a sampling pump; 701. a first air inlet groove; 702. a second air inlet groove; 703. and a second waterproof case.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
Referring to fig. 1 to 12, an on-line sampling device for gas samples includes a housing 1, an accommodating groove 102 is cut on an upper end surface of the housing 1, a square groove 101 is cut on a left end surface of the housing 1, a plug 105 is slidably connected in the square groove 101, and a plurality of communicating through holes 103 are cut between the square groove 101 and the accommodating groove 102;
a plurality of gas collecting mechanisms are arranged in the accommodating groove 102 and are used for storing gas samples, and the gas collecting mechanisms are respectively communicated with the through holes 103;
the rear end face of the shell 1 is provided with an air supply mechanism which is used for sending the gas to be collected into the square groove 101;
a driving mechanism is arranged between the plunger 105 and the shell 1, and the driving mechanism is used for controlling the plunger 105 to slide left and right in the square groove 101;
The lower sides of the plurality of gas collection cylinders 2 are respectively provided with a plugging mechanism, and the plurality of plugging mechanisms are respectively used for sealing the air inlets of the plurality of gas collection cylinders 2.
The embodiment is as follows, when the gas sample of different time periods needs to be gathered to this device, connect gas collection mechanism, make gas collection mechanism and through-hole 103 intercommunication, open air supply mechanism and make gas sample enter into square groove 101 in, open actuating mechanism and drive inserted column 105 and remove to the left, when the right-hand member face of inserted column 105 is located the middle part directly over the shutoff mechanism, thereby realize the intercommunication of square groove 101 and a through-hole 103, and then realize that gas sample in the square groove 101 enters into gas collection mechanism and collects, when the right-hand member face of inserted column 105 is located the shutoff mechanism left side, thereby the shutoff mechanism no longer is pressed by inserted column 105 and realizes upwards moving into through-hole 103, thereby realize that shutoff mechanism and gas collection mechanism contact, and then realize carrying out the shutoff to gas collection mechanism behind the collection gas sample, and then be of being of in-process gas entering into this gas collection mechanism, and then be of being of help to avoid the gas sample of collecting to reveal and run off, inserted column 105 continues to remove the repetition cycle, thereby realize that gas sample in the square groove 101 enters into each gas collection mechanism from the right to the left in proper order, through controlling the actuating mechanism's drive speed can control the speed of inserted column 105 and can be moved to realize in order, thereby the time sample collection time is convenient for two adjacent sample time and then frequent sample collection section is not easy to take samples by the time sample.
As an embodiment of the invention, the gas collecting mechanism comprises a gas collecting bottle 2, a first connecting pipe 203 is fixedly connected to the lower inner wall of the accommodating groove 102, the first connecting pipe 203 is communicated with the through hole 103, a second connecting pipe 204 is connected to the first connecting pipe 203 in a threaded manner, the second connecting pipe 204 is fixedly communicated with the lower end face of the gas collecting bottle 2, a second one-way valve 202 is fixedly communicated with the air inlet of the gas collecting bottle 2, and a first one-way valve 201 is fixedly communicated with the air outlet of the gas collecting bottle 2.
The embodiment is as follows, when the gas collecting mechanism needs to be installed, the rotating gas collecting bottle 2 drives the second connecting pipe 204 to rotate, thereby realizing the connection fixation of the second connecting pipe 204 and the first connecting pipe 203, and further realizing the communication between the through hole 103 and the gas collecting bottle 2, and further facilitating the gas sample in the square groove 101 to enter into the gas collecting bottle 2 through the through hole 103 for collection, the second check valve 202 is arranged, the gas sample can only enter into the gas collecting bottle 2 from the second connecting pipe 204, the gas can not enter into the second connecting pipe 204 through the gas collecting bottle 2, the gas in the gas collecting bottle 2 can only be discharged out of the gas collecting bottle 2 through the first check valve 201, the gas outside the gas collecting bottle 2 can not enter into the gas collecting bottle 2 through the first check valve 201, and thus the original gas in the gas collecting bottle 2 can not be extruded and discharged in the gas collecting process, and meanwhile, after the second connecting pipe 204 is plugged by the plugging mechanism, the gas sample in the gas collecting bottle 2 can not be discharged out of the gas collecting bottle 2 through the first check valve 201, and thus the gas sample in the gas collecting bottle 2 can not be prevented from escaping.
As an embodiment of the present invention, the air supply mechanism includes a sampling pump 7, the sampling pump 7 is fixedly connected to the rear end surface of the housing 1, a plurality of second air inlet grooves 702 are cut in the rear inner wall of the square groove 101, a first air inlet groove 701 is cut in the rear inner wall of the plurality of second air inlet grooves 702, an air outlet pipe of the sampling pump 7 is communicated with the first air inlet groove 701, and an L-shaped air entraining hole 106 is cut in the plug 105.
In the specific embodiment, when a gas sample needs to be sent into the square tank 101, the sampling pump 7 is turned on, the sampling pump 7 sucks the gas in the field into the sampling pump 7 and blows the gas sample into the first air inlet tank 701, the gas sample in the first air inlet tank 701 enters into the plurality of second air inlet tanks 702, the second air inlet tanks 702 are shielded by the plug posts 105, so that the gas sample in the second air inlet tanks 702 cannot enter into the square tank 101, after the plug posts 105 move, the positions of the L-shaped air inlet holes 106 on the plug posts 105 are changed along with the movement of the second air inlet tanks, after the L-shaped air inlet holes 106 are communicated with the second air inlet tanks 702 and the through holes 103, the gas sample in the second air inlet tanks 702 enters into the through holes 103 at corresponding positions through the L-shaped air inlet holes 106, and is collected in the gas cylinders 2 through the continuous movement of the plug posts 105, the plurality of second air inlet tanks 702 and the through holes 103 are sequentially communicated, the gas sample in the gas cylinders 2 cannot be inflated and collected, and the gas sample collection mechanism in the gas cylinders 2 can still be sealed, and the gas sample collection process in the gas cylinders 2 cannot be well communicated with the gas sample collection channels even if the gas sample collection process in the front of the gas cylinders 2 is still sealed.
As one embodiment of the invention, the driving mechanism comprises a servo motor 6, the servo motor 6 is fixedly connected to the left end face of the shell 1, the output end of the servo motor 6 is fixedly connected with a gear 601, the upper end face of the plunger 105 is provided with a mounting groove 603, the lower inner wall of the mounting groove 603 is fixedly connected with a rack 602, and the gear 601 is in meshed connection with the rack 602.
The specific implementation manner is that when the plunger 105 needs to be controlled to move, the servo motor 6 is turned on, the output end of the servo motor 6 rotates to drive the gear 601 to rotate, the gear 601 rotates to drive the rack 602 to move, the rack 602 moves to drive the plunger 105 to move in the square groove 101, so that the sequential air supply and collection in the plurality of air collection cylinders 2 are realized, the moving speed of the plunger 105 can be controlled by controlling the rotating speed of the output end of the servo motor 6, the air collection sampling time interval of two adjacent air collection cylinders 2 is conveniently controlled, the time of air supply to each air collection cylinder 2 is conveniently controlled, and the original air in the air collection cylinders 2 is conveniently discharged and collected;
it should be noted that, for those skilled in the art, the rotation speed of the output end of the servo motor 6 is controlled by the pulse signal as in the prior art, so that the description thereof is omitted.
As an embodiment of the present invention, the plugging mechanism includes a rubber plate 3, a chute 303 is cut on the lower inner wall of the square groove 101, a movable column 301 is slidably connected in the chute 303, the rubber plate 3 is fixedly connected to the upper end surface of the movable column 301, the lower end surface of the movable column 301 is fixedly connected to a spring 302, the lower end of the spring 302 is fixedly connected to the lower inner wall of the chute 303, a plurality of limiting components are disposed in the square groove 101, and the plurality of limiting components are respectively used for limiting the lateral movement of the plurality of movable columns 301.
In the specific embodiment, when the insert column 105 is located on the upper surface of the rubber plate 3, the movable column 301 cannot move upwards, the spring 302 is in a compressed state, the insert column 105 moves leftwards until the limiting component is not blocked by the insert column 105, and then the limiting component rotates to open and is supported between the upper inner wall and the lower inner wall of the insert column 105 in an inclined manner, so that the movable column 301 is limited, the upper inner wall of the insert column 105 is prevented from being blocked in the process of upwards moving the movable column 301, the rubber plate 3 can be conveniently contacted with and pressed against the second connecting pipe 204, the insert column 105 continues to move leftwards, when the right end surface of the insert column 105 is located on the left side of the rubber plate 3, the rubber plate 3 is not limited and blocked by the insert column 105, the rubber plate 3 and the movable column 301 are driven to slide into the through hole 103 under the elastic reset of the spring 302 until the rubber plate 3 is pressed against the lower end surface of the second connecting pipe 204, and thus the blocking of the second connecting pipe 204 is realized, and the loss of a gas sample collected in the gas collecting cylinder 2 is avoided.
As an embodiment of the present invention, the limiting component includes a rotating plate 501, a first storage groove 5 is cut on the lower inner wall of the square groove 101, the left inner wall of the first storage groove 5 is set as an inclined plane, the lower end surface of the rotating plate 501 is located in the first storage groove 5 and hinged between the front and rear inner walls of the square groove 101 in a rotating manner, a second storage groove 502 is cut on the lower inner wall of the first storage groove 5, a spring plate 503 is fixedly connected to the left inner wall of the second storage groove 502, the other end of the spring plate 503 is fixedly connected to the rotating plate 501, and an arc groove 504 matched with the movable column 301 is cut on the right end surface of the inserting column 105.
In the specific embodiment, when the plunger 105 is located on the upper side of the rotating plate 501, the rotating plate 501 is blocked and cannot be opened in a rotating mode, when the plunger 105 moves to the left side of the first storage groove 5, the rotating plate 501 is not blocked by the plunger 105, the rotating plate 501 is driven to rotate anticlockwise under the elastic reset of the elastic piece 503, because the left inner wall of the first storage groove 5 is an inclined plane, the upper portion of the rotating plate 501 is located between the chute 303 and the through hole 103 after the rotating plate 501 rotates, when the movable post 301 moves upwards and is in contact with the rotating plate 501, the rotating plate 501 is pressed and aligned by the movable post 301, so that the upper inner wall of the plunger 105 is prevented from being blocked by oblique impact to the right in the process of moving the movable post 301 upwards, when the plunger 105 moves to stop the rubber plate 3, the movable post 301 slides upwards in the arc-shaped groove 504 of the plunger 105, the movable post 301 is prevented from inclining forwards, backwards and leftwards in the three directions in the upward moving process, the movable post 301 is further facilitated to be inserted into the through hole 103 to be in contact and sealed with the second 204, after the sampling is finished, the rubber plate 3 and the movable post 301 is pushed downwards to move to the right in the chute 301, the second storage groove 301 is pushed inwards, and the second storage groove is kept in the position of the movable post 301 is retracted into the chute, and the second storage groove is further convenient.
As an embodiment of the present invention, the lower end surfaces of the movable pillars 301 are all cut with the first circular grooves 401, the upper inner walls of the first circular grooves 401 are all cut with the second circular grooves 403, the traction pillars 402 are all connected in a sliding manner in the first circular grooves 401, the springs 302 are respectively sleeved on the outer sides of the traction pillars 402, the upper end surfaces of the traction pillars 402 are all fixedly connected with the sliding pillars 4, the sliding pillars 4 are respectively connected in the second circular grooves 403, the lower inner walls of the sliding grooves 303 are all cut with round holes 404, the lower inner walls of the round holes 404 are cut with accommodating cavities 406, the traction pillars 402 are respectively connected in the round holes 404 in a sliding manner, the lower end surfaces of the traction pillars 402 are fixedly connected with the connecting plates 405, the connecting plates 405 are positioned in the accommodating cavities 406, the upper inner walls of the accommodating cavities 406 are fixedly connected with the electric telescopic rods 407, and the output ends of the electric telescopic rods 407 are fixedly connected with the upper end surfaces of the connecting plates 405.
In the specific embodiment, when the movable column 301 and the rubber plate 3 need to be retracted into the chute 303 after the sampling is finished, the electric telescopic rod 407 is opened to drive the connecting plate 405 to move downwards, the connecting plate 405 drives the traction column 402 to move downwards in the round hole 404, the traction column 402 drives the sliding column 4 to move downwards until contacting with the lower inner wall of the second round groove 403, thereby driving the movable column 301 to move downwards and retract into the chute 303, the spring 302 is compressed, thereby facilitating the next resetting to drive the movable column 301 to move upwards, when the inserting column 105 moves rightwards and resets, the electric telescopic rod 407 is opened again to enable the connecting plate 405 to move upwards and reset, thereby driving the sliding column 4 to slide upwards in the second round groove 403 and reset, further facilitating the ejecting of the movable column 301 after the inserting column 105 moves away from the rubber plate 3.
As an embodiment of the present invention, the upper end surface of the housing 1 is rotatably hinged with the baffle 104, the left end surface of the housing 1 is fixedly connected with the first waterproof shell 604, the servo motor 6 is located in the first waterproof shell 604, the plug 105 is slidably inserted through the first waterproof shell 604, the rear end surface of the housing 1 is fixedly connected with the second waterproof shell 703, the sampling pump 7 is located in the second waterproof shell 703, and the air inlet pipe of the sampling pump 7 is inserted through the lower end surface of the second waterproof shell 703.
The embodiment is as follows, in being convenient for prevent rainwater or dust from entering into holding tank 102 through setting up baffle 104, it is worth mentioning that the gas in the holding tank 102 can escape through the gap between baffle 104 and shell 1, be convenient for prevent that the rainwater from contacting servo motor 6 and sampling pump 7 and causing the damage of servo motor 6 and sampling pump 7 in the rainy day through setting up first waterproof shell 604 and second waterproof shell 703, the air intake setting of sampling pump 7 is in the downside and is beneficial to preventing the rainwater from entering into in the sampling pump 7 and causing the damage of sampling pump 7.
As an embodiment of the present invention, the lower inner wall of the accommodating groove 102 is fixedly connected with a plurality of limiting rings 205, the sealing covers 206 are placed in the limiting rings 205, and threads matched with the second connecting pipes 204 are engraved on the inner walls of the sealing covers 206.
The specific embodiment is as follows, when the collection of the gas sample in the gas collection bottle 2 is finished, the servo motor 6 and the sampling pump 7 are closed, the gas collection bottle 2 is rotationally taken down, the sealing cover 206 is rotationally connected with the second connecting pipe 204, so that the sealing of the second connecting pipe 204 is realized, the air is prevented from entering the gas collection bottle 2 through the second connecting pipe 204, the collected gas sample in the gas collection bottle 2 is extruded, the purity of the collected gas is maintained, and the subsequent gas inspection is facilitated.
Referring to fig. 13, a sampling method of an on-line sampling device for gas samples includes the following steps:
Firstly, opening the baffle 104, rotating to take down a plurality of sealing covers 206, respectively putting the sealing covers into a plurality of limiting rings 205, rotating a plurality of gas collection cylinders 2 to enable the gas collection cylinders 2 to be respectively connected and fixed with a plurality of first connecting pipes 203, and finally closing the baffle 104;
Step two, a sampling pump 7 is opened to send gas into a first air inlet groove 701, a servo motor 6 is opened to drive a plunger 105 to slowly move from right to left in a square groove 101, a rotary plate 501 is rotated and sprung out under the action of a spring plate 503 after no plunger 105 is limited, then an L-shaped air introducing hole 106 is communicated with a second air inlet groove 702 and a through hole 103, gas enters a gas collection bottle 2 through the first air inlet groove 701 to discharge original gas in the gas collection bottle 2, gas sample collection is realized, the plunger 105 continues to move until a rubber plate 3 is not limited, then the rubber plate 3 slides upwards under the action of a spring 302 to seal a second connecting pipe 204, one-time gas sampling collection is completed, and the plunger 105 continues to move and repeat circulation until a plurality of gas collection bottles 2 collect gas samples with different times;
Step three, the servo motor 6 and the sampling pump 7 are closed, the baffle 104 is opened in a rotating mode, the plurality of gas collection cylinders 2 are removed in a rotating mode, the plurality of second connecting pipes 204 are sealed in a rotating mode through the plurality of sealing covers 206, the baffle 104 is closed in a rotating mode, the electric telescopic rod 407 is opened, the rubber plate 3 is pulled to reset into the sliding groove 303, the servo motor 6 is opened to enable the output end of the servo motor to reversely rotate to drive the inserting column 105 to move from left to right to reset, the rotating plate 501 is pushed to rotate to reset in the moving process of the inserting column 105 until the inserting column 105 cannot continue to move, the servo motor 6 is closed, and the electric telescopic rod 407 is opened to enable the connecting plate 405 to move upwards to reset.
The working principle of the invention is as follows: when the device needs to be used for collecting gas samples in different time periods, the gas collecting mechanism is connected, the gas collecting mechanism is communicated with the through hole 103, the air supply mechanism is opened to enable the gas samples to enter the square groove 101, the driving mechanism is opened to drive the inserted column 105 to move leftwards, when the right end face of the inserted column 105 is located in the middle of the right side of the plugging mechanism, the square groove 101 and one through hole 103 are communicated, and then the gas samples in the square groove 101 are collected in the gas collecting mechanism, when the right end face of the inserted column 105 is located on the left side of the plugging mechanism, the plugging mechanism is not pressed by the inserted column 105 and is moved upwards into the through hole 103, so that the plugging mechanism is contacted with the gas collecting mechanism, and then the gas samples are plugged by the gas collecting mechanism after the gas samples are collected, further, the gas samples in the gas collecting mechanism are prevented from leaking and losing in the subsequent collecting process, the inserted column 105 continues to move and circulate repeatedly, the gas samples in the square groove 101 from left side to enter each gas collecting mechanism in sequence, the automatic speed control can be controlled through controlling the driving speed of the inserted column 105, and then the gas samples can be collected by the operator at different time intervals, and the time can be conveniently and timely and conveniently separated by the operator can be conveniently collected by the gas collecting the gas samples.
The foregoing has shown and described the basic principles, principal 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 foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a gaseous sample on-line sampling device, includes shell (1), its characterized in that: an accommodating groove (102) is formed in the upper end face of the shell (1), a square groove (101) is formed in the left end face of the shell (1), a plug post (105) is connected in the square groove (101) in a sliding mode, and a plurality of communicated through holes (103) are formed between the square groove (101) and the accommodating groove (102);
a plurality of gas collecting mechanisms are arranged in the accommodating groove (102) and are used for storing gas samples, and the gas collecting mechanisms are respectively communicated with the through holes (103);
the rear end face of the shell (1) is provided with an air supply mechanism which is used for sending air to be collected into the square groove (101);
a driving mechanism is arranged between the inserting column (105) and the shell (1), and the driving mechanism is used for controlling the inserting column (105) to slide left and right in the square groove (101);
The gas collecting mechanism comprises gas collecting cylinders (2), plugging mechanisms are arranged on the lower sides of the gas collecting cylinders (2), and the plugging mechanisms are respectively used for sealing air inlets of the gas collecting cylinders (2);
An L-shaped air entraining hole (106) is cut on the inserted column (105);
The plugging mechanism comprises a rubber plate (3), a chute (303) is cut on the lower inner wall of the square groove (101), a movable column (301) is connected in the chute (303) in a sliding mode, the rubber plate (3) is fixedly connected to the upper end face of the movable column (301), a spring (302) is fixedly connected to the lower end face of the movable column (301), the lower end of the spring (302) is fixedly connected to the lower inner wall of the chute (303), a plurality of limiting components are arranged in the square groove (101), and the limiting components are respectively used for limiting the transverse movement of the movable columns (301);
The limiting assembly comprises a rotating plate (501), a first storage groove (5) is formed in the lower inner wall of the square groove (101) in an open mode, the left inner wall of the first storage groove (5) is set to be an inclined plane, the lower end face of the rotating plate (501) is located in the first storage groove (5) and is rotationally hinged between the front inner wall and the rear inner wall of the square groove (101), a second storage groove (502) is formed in the lower inner wall of the first storage groove (5), an elastic sheet (503) is fixedly connected to the left inner wall of the second storage groove (502), the other end of the elastic sheet (503) is fixedly connected to the rotating plate (501), and an arc-shaped groove (504) matched with the movable column (301) is formed in the right end face of the inserting column (105) in an open mode;
A first round groove (401) is formed in the lower end face of each movable column (301), a second round groove (403) is formed in the upper inner wall of each first round groove (401), a traction column (402) is slidably connected in each first round groove (401), a plurality of springs (302) are sleeved on the outer sides of the traction columns (402) respectively, a sliding column (4) is fixedly connected to the upper end face of each traction column (402), the sliding columns (4) are slidably connected in each second round groove (403), round holes (404) are formed in the lower inner walls of the sliding grooves (303), a containing cavity (406) are formed in the lower inner walls of the round holes (404), the traction columns (402) are slidably connected in the round holes (404), a connecting plate (405) is fixedly connected to the lower end face of each traction column (402), the connecting plate (405) is located in the containing cavity (406), and an electric rod (407) is fixedly connected to the upper end face of the electric rod (407), and the electric rod (407) is fixedly connected to the upper end face of the telescopic rod (407);
When the inserting column (105) is positioned on the upper surface of the rubber plate (3), the movable column (301) cannot move upwards, the spring (302) is in a compressed state, the inserting column (105) moves leftwards until the limiting component is not blocked by the inserting column (105), and the limiting component rotates to be obliquely supported between the upper inner wall and the lower inner wall of the inserting column (105), so that the movable column (301) is limited, the upper inner wall of the inserting column (105) is prevented from being blocked during the upward movement of the movable column (301), the rubber plate (3) can be conveniently contacted with and pressed against the sealing second connecting pipe (204), the inserting column (105) continues to move leftwards, when the right end surface of the inserting column (105) is positioned on the left side of the rubber plate (3), the rubber plate (3) is not limited and blocked by the inserting column (105), and the rubber plate (3) and the movable column (301) are driven to slide into the through hole (103) under the elastic reset of the spring (302) until the rubber plate (3) is pressed against the lower end surface of the second connecting pipe (204), and thus the sealing of the second connecting pipe (204) is realized;
When the movable column (301) and the rubber plate (3) are required to be retracted into the sliding groove (303) after sampling is finished, the electric telescopic rod (407) drives the connecting plate (405) to move downwards, the connecting plate (405) drives the traction column (402) to move downwards in the round hole (404), the traction column (402) drives the sliding column (4) to move downwards until contacting with the lower inner wall of the second round groove (403), thereby driving the movable column (301) to move downwards and be retracted into the sliding groove (303), the spring (302) is compressed, thereby facilitating the next reset to drive the movable column (301) to move upwards, after the rightwards movement reset of the inserting column (105) is finished, the electric telescopic rod (407) is opened again to enable the connecting plate (405) to move upwards for reset, thereby driving the sliding column (4) to slide upwards in the second round groove (403) for resetting, further facilitating the sliding of the inserting column (105) to move from the rubber plate (3) and separate from the inner wall of the second round groove (403), the traction column (402) is attached to the inner wall of the second round groove (403) for sliding, and further preventing the sliding column (301) from being further inclined on the inner wall of the round hole (301).
2. The on-line sampling device for gas samples according to claim 1, wherein a first connecting pipe (203) is fixedly connected to the lower inner wall of the accommodating groove (102), the first connecting pipe (203) is communicated with the through hole (103), a second connecting pipe (204) is connected to the first connecting pipe (203) in a threaded manner, the second connecting pipe (204) is fixedly connected to the lower end face of the gas collecting bottle (2), a second one-way valve (202) is fixedly connected to the air inlet of the gas collecting bottle (2), and a first one-way valve (201) is fixedly connected to the air outlet of the gas collecting bottle (2).
3. The on-line sampling device for gas samples according to claim 2, wherein the air supply mechanism comprises a sampling pump (7), the sampling pump (7) is fixedly connected to the rear end face of the housing (1), a plurality of second air inlet grooves (702) are cut into the rear inner wall of the square groove (101), a plurality of first air inlet grooves (701) are cut into the rear inner wall of the second air inlet grooves (702), and an air outlet pipe of the sampling pump (7) is communicated with the first air inlet grooves (701).
4. The on-line sampling device for gas samples according to claim 3, wherein the driving mechanism comprises a servo motor (6), the servo motor (6) is fixedly connected to the left end face of the housing (1), the output end of the servo motor (6) is fixedly connected with a gear (601), an installation groove (603) is cut in the upper end face of the plunger (105), a rack (602) is fixedly connected to the lower inner wall of the installation groove (603), and the gear (601) is connected to the rack (602) in a meshed mode.
5. The on-line sampling device for gas samples according to claim 4, wherein the upper end surface of the housing (1) is rotationally hinged with a baffle plate (104), the left end surface of the housing (1) is fixedly connected with a first waterproof shell (604), the servo motor (6) is located in the first waterproof shell (604), the plug post (105) is slidably penetrated through the first waterproof shell (604), the rear end surface of the housing (1) is fixedly connected with a second waterproof shell (703), the sampling pump (7) is located in the second waterproof shell (703), and an air inlet pipe of the sampling pump (7) penetrates through the lower end surface of the second waterproof shell (703).
6. The on-line sampling device for gas samples according to claim 5, wherein a plurality of limiting rings (205) are fixedly connected to the lower inner wall of the accommodating groove (102), sealing covers (206) are respectively arranged in the limiting rings (205), and threads matched with the second connecting pipes (204) are respectively carved on the inner walls of the sealing covers (206).
7. A sampling method of an on-line sampling device for a gas sample, which is applicable to the on-line sampling device for a gas sample according to claim 6, comprising the following steps:
firstly, opening a baffle plate (104), rotatably taking down a plurality of sealing covers (206) to be respectively put into a plurality of limiting rings (205), rotating a plurality of gas collecting cylinders (2) to enable the gas collecting cylinders (2) to be respectively connected and fixed with a plurality of first connecting pipes (203), and finally closing the baffle plate (104);
Step two, a sampling pump (7) is opened to send gas into a first air inlet groove (701), a servo motor (6) is opened to drive a plunger (105) to slowly move from right to left in a square groove (101), a rotary plate (501) is rotated and sprung out under the action of a spring plate (503) after the plunger (105) is not limited, then an L-shaped air introducing hole (106) is communicated with a second air inlet groove (702) and a through hole (103), gas enters into a gas collection bottle (2) through the first air inlet groove (701) to discharge original gas in the gas collection bottle (2) and then realize gas sample collection, the plunger (105) continues to move until a rubber plate (3) upwards slides to block a second connecting pipe (204) under the action of a spring (302) after the rubber plate (3) is not limited, and gas sample collection is completed once, and the plunger (105) continues to move repeatedly until a plurality of gas collection bottles (2) collect gas samples with different sampling times;
Step three, close servo motor (6) and sampling pump (7), rotatory opening baffle (104), rotatory a plurality of gas cylinders (2) of taking off, respectively through a plurality of sealed lid (206) rotary seal a plurality of second connecting pipes (204), rotatory closing baffle (104), open electric telescopic handle (407) and pull rubber slab (3) and reset to in spout (303), open servo motor (6) again and make its output counter-rotating drive inserted post (105) from left to right remove and reset, the inserted post (105) removes in-process and promotes rotating plate (501) rotatory reset, until inserted post (105) can not continue to remove back closed servo motor (6), open electric telescopic handle (407) and make connecting plate (405) upwards remove reset can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410205647.1A CN117782705B (en) | 2024-02-26 | 2024-02-26 | Online sampling device and method for gas samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410205647.1A CN117782705B (en) | 2024-02-26 | 2024-02-26 | Online sampling device and method for gas samples |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117782705A CN117782705A (en) | 2024-03-29 |
| CN117782705B true CN117782705B (en) | 2024-05-31 |
Family
ID=90391381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410205647.1A Active CN117782705B (en) | 2024-02-26 | 2024-02-26 | Online sampling device and method for gas samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117782705B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118168870B (en) * | 2024-05-13 | 2024-08-13 | 烟台玖樾电力科技有限公司 | Substation monitoring sampling system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038874A (en) * | 1996-07-17 | 1998-02-13 | Cosmo Oil Co Ltd | Disulfide analysis method |
| CA2604184A1 (en) * | 2007-10-31 | 2009-04-30 | John Stephenson | A ready to use diffusion type air sampler for measuring contaminant gases in the atmosphere |
| KR20130076563A (en) * | 2011-12-28 | 2013-07-08 | 경기도 | Apparatus for gas sampling in farming |
| CN107389879A (en) * | 2017-09-04 | 2017-11-24 | 湖州同晟企业管理咨询服务有限公司 | A kind of printing and dyeing industry waste gas Intelligent Measurement processing unit |
| CN116698524A (en) * | 2023-06-09 | 2023-09-05 | 中国石油大学(北京) | VOCs adsorption trapping device for analyzing atmospheric pollution degree |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9341547B2 (en) * | 2013-08-29 | 2016-05-17 | Brian J. David | Automatic re-loading air-sampling and pneumatic transport system |
-
2024
- 2024-02-26 CN CN202410205647.1A patent/CN117782705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038874A (en) * | 1996-07-17 | 1998-02-13 | Cosmo Oil Co Ltd | Disulfide analysis method |
| CA2604184A1 (en) * | 2007-10-31 | 2009-04-30 | John Stephenson | A ready to use diffusion type air sampler for measuring contaminant gases in the atmosphere |
| KR20130076563A (en) * | 2011-12-28 | 2013-07-08 | 경기도 | Apparatus for gas sampling in farming |
| CN107389879A (en) * | 2017-09-04 | 2017-11-24 | 湖州同晟企业管理咨询服务有限公司 | A kind of printing and dyeing industry waste gas Intelligent Measurement processing unit |
| CN116698524A (en) * | 2023-06-09 | 2023-09-05 | 中国石油大学(北京) | VOCs adsorption trapping device for analyzing atmospheric pollution degree |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117782705A (en) | 2024-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117782705B (en) | Online sampling device and method for gas samples | |
| CN114659838A (en) | Hydrological monitoring water quality sampling ship and using method thereof | |
| CN214667971U (en) | Product oil sampling detection device with stratified sampling function | |
| CN220104581U (en) | Sampler | |
| CN112320119B (en) | Wine jar with built-in ceramic pipe | |
| CN220583874U (en) | Groundwater quality of water monitoring sampling device | |
| CN115944991B (en) | Waste gas treatment device | |
| CN116183881B (en) | Industrial wire drawing oil crude oil concentration detection device | |
| CN114931842B (en) | VOCs processing apparatus | |
| CN116625759A (en) | Gas collection device and use method | |
| CN116907917A (en) | Sample collection device for food inspection | |
| CN114324556B (en) | Seawater sample quasi-metal analysis sample introduction device and metal concentration measurement method | |
| CN215525733U (en) | Intelligent environment monitoring device for constructional engineering | |
| CN211262854U (en) | Water quality sampler | |
| CN219104838U (en) | Liquid chromatograph mobile phase stock solution taking device | |
| CN220084368U (en) | Soil environment detects sampling device | |
| CN220339691U (en) | Portable sampling device | |
| CN219774465U (en) | Landfill leachate spouts system delivery pump back | |
| CN212367409U (en) | Positioning precision monitoring device for continuous annealing line trolley | |
| CN217007146U (en) | Automatic purging and trapping equipment for indoor environment detection | |
| CN218212070U (en) | Contaminated soil sampling device | |
| CN219284768U (en) | Dust gas sampling detection device | |
| CN116116789B (en) | Moss cleaner for net cover of water inlet pipe of aquaculture pond | |
| CN218931910U (en) | Fecal sample processing device | |
| CN218444625U (en) | Sampling device for environmental engineering detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |