CN102252877B - Full-automatic multichannel air passage switching atmospheric sampling device - Google Patents
Full-automatic multichannel air passage switching atmospheric sampling device Download PDFInfo
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- CN102252877B CN102252877B CN2011101627929A CN201110162792A CN102252877B CN 102252877 B CN102252877 B CN 102252877B CN 2011101627929 A CN2011101627929 A CN 2011101627929A CN 201110162792 A CN201110162792 A CN 201110162792A CN 102252877 B CN102252877 B CN 102252877B
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Abstract
The invention discloses a full-automatic multichannel air passage switching atmospheric sampling device which can be widely applied to various atmospheric sampling systems. The full-automatic multichannel air passage switching atmospheric sampling device comprises an atmospheric sampler (1), a closed multichannel air passage switching device (4) and a control unit (5). The full-automatic multichannel air passage switching atmospheric sampling device can be widely applied to the field of detection of environmental gas. According to the working requirement, the communication or closing of each channel can be controlled in the sampling process of the atmospheric sampling device by switching the air passages, so that the collection time and sequence of all sampling passages can be controlled; and the full-automatic multichannel air passage switching atmospheric sampling device has the advantages of small volume, low energy consumption and the like.
Description
Technical field
The present invention relates to a kind of Full-automatic multi-channel gas path switching atmospheric sampling device, be mainly used in the collection of various atmospheric samples.
Background technology
Along with socioeconomic develop rapidly, mankind's process of industrialization also obtains develop rapidly, but incident problem is, the discharge of " three wastes " in a large number, in air, various harmful gases are as sulphuric dioxide, the harmful gases such as oxynitrides have formed important threat to the mankind's health, and the mankind's living environment goes from bad to worse.The topmost function of multichannel air passage switch sampling system is exactly to collect the gas discharged, and by the gas experiment Analysis to collected, draw composition and the content of collected gas, thereby draw the conclusion that whether needs need to carry out institute's emission gases harmless treatment.
Existing multi-channel sampling system is mainly to control the conversion of a plurality of gas circuits by controlling a plurality of solenoid valves, and how many passages are arranged, and needs how many solenoid valves, and each solenoid valve all will be switched on always during work.Its shortcoming is: volume is comparatively huge, and energy consumption is relatively high.
Summary of the invention
The present invention has overcome existing technical disadvantages, and a kind of Full-automatic multi-channel gas path switching atmospheric sampling device is provided.
For addressing the above problem, technical scheme of the present invention is: a kind of Full-automatic multi-channel gas path switching atmospheric sampling device comprises air sampler 1, rotary type multichannel gas path switching device 4, control module 5.Air sampler is connected with the gas port of rotary type multichannel gas path switching device by silicone tube, the other end of air sampler is connected with gas collecting device, the sampling Startup time that control module arranges according to keyboard, sampling channel, sampling time, and the signal of inputting by sensor, determine the channel position of rotary type multichannel gas path switching device, control electric motor starting and stop, controlling the start and stop of air sampler; The rotary type multichannel gas path switching device has a plurality of passages, and gas circuit is regulated in rotation, gathers different samples.
The rotary type multichannel gas path switching device is by motor (7), and rotation gas circuit switching construction forms.Selected motor (7) can be stepper motor or servomotor or common electric machine.Fix an anti-dazzling screen (6) on the motor shaft of common electric machine, and the sensor (9) parallel with anti-dazzling screen (6) direction is installed.
The rotary type multichannel gas path switching device is by upper cover (11), outlet nozzle (14), shaft collar (15), lower cover (17), admission piece (19), spring-loaded plunger (21), rotating disk (22) forms, upper cover (11) center has circular hole, is used for by motor shaft, and motor shaft is connected with rotating disk (22); Its surrounding four through holes that kept to the side are uniform; Also have four groups not penetrate threaded hole, in order to fixation of sensor (9), it is blow-by when preventing this device work that threaded hole does not penetrate.Being furnished with sealing shroud (23) at upper cover (11) central hole location, is sealing between motor shaft and upper cover (11) when its effect is assurance work.Below upper cover (11), be sealing gasket (12), the following of sealing gasket (12) is shaft collar (15).Upper cover (11), upper each uniform four threaded holes of sealing gasket (12) and shaft collar (15), can be fastened as a whole it by screw (10); Shaft collar (15) surrounding has five holes, and wherein four holes are uniform, is venthole, and another hole is the middle of two ventholes therein, is air admission hole, and its effect connects respectively admission piece (19) and outlet nozzle (14).In the place of shaft collar (15) air inlet/outlet, four outlet nozzles (14) and an admission piece (19) are arranged, be the access way of gathered sample., there is a rotating disk (22) inside of shaft collar (15), and a perforate axle sleeve is stretched out at uniform four the Kong，Qi centers of the surrounding of rotating disk (22), at opening axis, puts out threaded hole, with screw (13), rotating disk (22) and motor shaft fixed.In four holes of rotating disk (22), three spring-loaded plungers (21) are arranged, between the steel ball of spring-loaded plunger (21) and pillar, there is spring to be connected, can adjust length according to the large freedom in minor affairs of pressure.Uniform four through holes in shaft collar (15) surrounding, have four O-ring seals (20), when it act as work, guarantees to seal between spring-loaded plunger (21) and circular hole.Below shaft collar (15), be sealing gasket (16) and lower cover (17) and screw (18), by screw (10), (18) can be fastened as a whole and good seal whole device.
Rotary type multichannel gas path switching device dress is comprised of outer tube and inner tube, by the inner tube dress within the outer tube, on outer tube, there are four to be positioned on same bus and the equal gas outlet of spacing, on inner tube, have four axial locations corresponding with the outer tube gas outlet, radially with 90 ° of gas outlets that increase progressively, inner tube extension arm and motor shaft are bolted, and the air intake opening on inner tube other end side face is connected with the air pump gas outlet by silicone tube.
Rotary type multichannel gas path switching device dress is comprised of swivel becket, spiracular plate and set collar, orifice plate is installed on the set collar end face, both fix by screw, then swivel becket is installed in set collar, make radial passage center line on set collar and the pore centerline on swivel becket on an xsect, the swivel becket other end is fixed on motor shaft.
Comprise anti-dazzling screen (6), motor (7), control circuit (8) and sensor (9) for the control module of controlling the gas circuit switching.Wherein control circuit (8) comprises the single-chip microcomputer of controlling motor, whole circuit is provided to the circuit of power supply, and the driving circuit of drive motor flows to single-chip microcomputer by the disk position signal and processed, and makes rotating disk can forward the sensor feedback circuit of assigned address to.The keyboard signal output port connects the keyboard input port of single-chip microcomputer, by keyboard, sampling channel, sampling Startup time, sampling time is set, and transfers data on liquid crystal display and show by single-chip microcomputer; The signal output port of sensor connects the input port of capturing of single-chip microcomputer, and single-chip microcomputer obtains the electric machine rotation whether enabling signal of signal and air pump that whether puts in place; The output port of single-chip microcomputer is connected with the signal input port of liquid crystal display, the transmission displaying contents is on liquid crystal display, the output port of single-chip microcomputer is connected with the signal input port of air pump control circuit, the sampling of control air pump, the output port of single-chip microcomputer is connected with the signal input port of DC motor control circuit, controls the startup of direct current generator and stops.
Surface in upper cover (11), can fix four sensors (9) by screw, open threaded hole on motor shaft, fix an anti-dazzling screen (6), make anti-dazzling screen (6) parallel with sensor (9) simultaneously, by air sampler (1), sampler bag (2), silicone tube (3) and circuit control section (8) connect, then start power supply, motor (7) moves together with the anti-dazzling screen on moving axis (6) while rotating, when anti-dazzling screen (6) goes under the projection of sensor (9), because sensor (9) is now blocked and can't respond to by anti-dazzling screen (6), motor (7) quits work, now start air sampler (1) and start sampling, the sample collected enters airtight rotary type multichannel gas path switching device by silicone tube (3), because other three ventholes now all seal, so the gas gathered can only enter by the passage of opening sampler bag (2), after the sample collection of this passage is complete, motor (7) drives anti-dazzling screen (6) and again rotates.In the time of under arriving next sensor (9) projection, motor (7) stops operating again, carries out the collection of sample next time, and so circulation, until sampled.
The invention has the beneficial effects as follows: with the sensor of small volume, replace the relatively large solenoid valve of volume; When motor goes to correct position and starts to sample, motor quits work, without energy consumption.There is volume little, low power consumption and other advantages.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described further, wherein:
The overall schematic that Fig. 1 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention;
The schematic diagram that Fig. 2 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention;
The partial sectional view that Fig. 3 is Full-automatic multi-channel gas path switching atmospheric sampling device rotating disk of the present invention and spring-loaded plunger;
The motor that Fig. 4 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention and shadow shield connection diagram.
The module frame chart of the control module that Fig. 5 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention;
The rotary type multichannel gas path switching device of the second embodiment that Fig. 6 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention;
The rotary type multichannel gas path switching device inner tube schematic diagram of the second embodiment that Fig. 7 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention;
The rotary type multichannel gas path switching device inner tube sectional view of the second embodiment that Fig. 8 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention;
The rotary type multichannel gas path switching device porous inner tube schematic diagram of the second embodiment that Fig. 9 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention;
The rotary type multichannel gas path switching device schematic diagram of the third embodiment that Figure 10 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention.
The rotary type multichannel gas path switching device outer shroud schematic diagram of the third embodiment that Figure 11 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention;
Ring schematic diagram in the rotary type multichannel gas path switching device of the third embodiment that Figure 12 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention.
The rotary type multichannel gas path switching device orifice plate schematic diagram of the third embodiment that Figure 13 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe in detail and introduce various embodiments of the present invention.
Fig. 1 to Fig. 5 is the first embodiment of the present invention.As Fig. 1 is the overall schematic that the full-automatic gas circuit of the present invention is switched atmosphere sampler, its structure comprises air sampler (1), sampler bag (2), silicone tube (3), airtight rotary type multichannel gas path switching device (4) and belong to circuit control unit (5).Wherein circuit control unit (5) comprises anti-dazzling screen (6), motor (7), control circuit (8) and sensor (9).
The schematic diagram that Fig. 2 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention, its structure comprises screw (10), upper cover (11), sealing gasket (12), screw (13), outlet nozzle (14), shaft collar (15), sealing gasket (16), lower cover (17), screw (18), admission piece (19), O-ring seal (20), spring-loaded plunger (21), rotating disk (22), sealing shroud (23) etc.
Fig. 3 is the full-automatic gas circuit switching atmosphere sampler rotating disk (22) of the present invention and spring-loaded plunger (21) partial sectional view.
The position connection diagram of the motor that Fig. 4 is Full-automatic multi-channel gas path switching atmospheric sampling device of the present invention (7) and anti-dazzling screen (6).
During concrete operations, first spring-loaded plunger (21) is embedded in four holes of rotating disk (22), install O-ring seal (20) in four outlet nozzles of shaft collar (15), rotating disk (22) is put into to shaft collar (15), and make spring-loaded plunger (21) aim at venthole, then by screw (10), (18) by sealing gasket (12), (16), upper cover (11), lower cover (17) and shaft collar (15) connect as one, again four outlet nozzles (14) and an admission piece (19) are fixed on shaft collar (15), cover upper sleeve gasket (23), the rotary type multichannel gas path switching device installs.
With screw, four sensors (9) are fixed in four holes of upper cover (11), anti-dazzling screen (6) is fixed on motor shaft, the opening axis that by screw (13), motor (7) is fixed in to rotating disk (22) again puts, by air sampler (1), sampler bag (2), silicone tube (3) connects, last connecting circuit control section (8) and power supply.Motor (7) can be stepper motor, common electric machine.Select according to actual needs different motor, what embodiment mono-selected is common electric machine.
During work, first start power supply, drive the rotation of whole rotary type multichannel gas path switching device by the rotation of motor (7), anti-dazzling screen on motor shaft (6) go to sensor (9) projection under the time, sensor (9) is covered fully, motor (7) quits work, now air sampler (1) is started working, having three in four passages due to rotating disk (22) is blocked by spring-loaded plunger (21), therefore the gas gathered can only enter sampler bag (2) from that remaining passage, after sample collection, motor (7) rotates again, in the time of under anti-dazzling screen (6) goes to next sensor (9) projection, motor (7) stops operating again, air sampler (1) again starts and carries out the collection of sample next time.So circulate repeatedly, until complete the collection of all passage samples, thus reach the purpose of the full-automatic gas circuit switch sampling of hyperchannel.
Fig. 6 to Fig. 9 is the second of the present invention enforcement side example.The second embodiment is that from the key distinction of the first embodiment rotary type multichannel gas path switching device structure is different.As shown in Figure 6, the rotary type multichannel gas path switching device is comprised of outer tube 24 and inner tube 25, interior 25 pipes are contained in outer tube 24, on outer tube, there are four to be positioned on same bus and gas port 26 that spacing is equal, on inner tube, there are four axial locations corresponding with the outer tube gas port, radially with 90 ° of gas outlets that increase progressively.Inner tube extension arm and motor shaft are bolted, and the air intake opening on inner tube other end side face is connected with the air pump gas outlet by silicone tube.Inner tube can be by radially with 90 °, increasing progressively and set out gas port, every 90 ° of gas outlets that one to four different number, diverse location are set, while realizing concrete the utilization, by adjusting angle, arrive the purpose of adjusting different gas outlets and adjusting gas port quantity.
During work, motor rotates inner tube.Along with the corresponding angle of the rotation of inner tube, contraposition is realized in a certain group of gas outlet of inner tube and the corresponding gas outlet of outer tube.Now gas circuit conducting, gas is carried by this gas circuit.Correspondingly, inner tube is rotated further, until contraposition is realized in gas outlet corresponding to outer tube, the gas outlet of appointment, completes the gas circuit switching.
Figure 10 to Figure 13 is the third enforcement side's example of the present invention.The present embodiment mainly is that from the difference of the first and the second embodiment rotary type multichannel gas path switching device structure is different.This rotary type multichannel gas path switching device is comprised of swivel becket, set collar and orifice plate, orifice plate and set collar adopt screw to fix, then swivel becket is installed in set collar, makes radial passage center line on set collar and the pore centerline on swivel becket on an xsect and guarantee the impermeability between the two.The swivel becket other end is fixed on motor shaft.
During work, electric machine rotation also drives swivel becket and rotates in set collar.Pore on swivel becket docks successfully with a certain passage on set collar, and this gas circuit is opened, and other each roads are closed.Now motor stops, and starts to gather gas.After this road gas collecting, electromechanics rotates, until the pore on swivel becket docks successfully with another passage on set collar, realizes the gas circuit switching, starts the gas collecting of next gas circuit.
According to above-mentioned design of the present invention, those skilled in the art also can make to this various modifications and conversion.Similar this conversion and modification all belong to essence of the present invention.
Claims (2)
1. a Full-automatic multi-channel gas path switching atmospheric sampling device, it comprises atmosphere sampler (1), rotary type multichannel gas path switching device (4), control module (5), it is characterized in that: atmosphere sampler is connected with the gas port of rotary type multichannel gas path switching device by silicone tube, the other end of atmosphere sampler is connected with gas collecting device, the sampling Startup time that control module arranges according to keyboard, sampling channel, sampling time, and the signal of inputting by sensor, determine the channel position of rotary type multichannel gas path switching device, control electric motor starting and stop, control the start and stop of atmosphere sampler, the rotary type multichannel gas path switching device has a plurality of passages, gas circuit is regulated in rotation, gather different samples, described rotary type multichannel gas path switching device is by motor (7), rotation gas circuit switching construction forms, described rotary type multichannel gas path switching device is by upper cover (11), outlet nozzle (14), shaft collar (15), lower cover (17), admission piece (19), spring-loaded plunger (21), rotating disk (22) forms, and upper cover (11) center has circular hole, be used for by motor shaft, motor shaft is connected with rotating disk (22), upper cover (11) surrounding four through holes that kept to the side are uniform, also have four groups of threaded holes that do not penetrate in order to fixation of sensor (9), is furnished with sealing shroud (23) at upper cover (11) central hole location, the following of upper cover (11) is shaft collar (15), shaft collar (15) surrounding has five holes, wherein four holes are uniform, for venthole, another hole is the middle of two ventholes therein, is air admission hole, connects respectively admission piece (19) and outlet nozzle (14), in the place of shaft collar (15) air inlet/outlet, four outlet nozzles (14) and an admission piece (19) are arranged, be the access way of gathered sample, , there is a rotating disk (22) inside of shaft collar (15), and a perforate axle sleeve is stretched out at uniform four the Kong，Qi centers of the surrounding of rotating disk (22), at opening axis, puts out threaded hole, with screw (13), rotating disk (22) and motor shaft fixed, in four holes of rotating disk (22), three spring-loaded plungers (21) are arranged, between the steel ball of spring-loaded plunger (21) and pillar, have spring to be connected, uniform four through holes in shaft collar (15) surrounding, four O-ring seals (20) are arranged, guarantee during work to seal between spring-loaded plunger (21) and circular hole, below shaft collar (15), be sealing gasket (16) and lower cover (17).
2. a kind of Full-automatic multi-channel gas path switching atmospheric sampling device according to claim 1, is characterized in that described motor (7) is stepper motor or common electric machine.
3. require 2 described a kind of Full-automatic multi-channel gas path switching atmospheric sampling devices according to profit, it is characterized in that fixing an anti-dazzling screen (6) on the motor shaft of common electric machine, and the sensor (9) parallel with anti-dazzling screen (6) direction is installed.
4. a kind of Full-automatic multi-channel gas path switching atmospheric sampling device according to claim 1, it is characterized in that the keyboard signal delivery outlet connects the data-in port of single-chip microcomputer, can sampling channel, sampling Startup time, sampling time be set by keyboard, and transfer data on liquid crystal display and show; The signal output port of sensor is connected with the signal input port of single-chip microcomputer respectively, and single-chip microcomputer obtains respectively the electric machine rotation whether enabling signal of signal and air pump that whether puts in place; The signal output port of single-chip microcomputer is connected with the signal input port of liquid crystal display, in order to control output display; The signal output port of single-chip microcomputer is connected with the signal input interface of atmosphere sampler control circuit, in order to control atmosphere sampler (1) sampling; The signal output port of single-chip microcomputer is connected with the signal input port of circuit for controlling motor, controls the startup of motor (7) and stops.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101627929A CN102252877B (en) | 2011-06-16 | 2011-06-16 | Full-automatic multichannel air passage switching atmospheric sampling device |
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| CN2011101627929A CN102252877B (en) | 2011-06-16 | 2011-06-16 | Full-automatic multichannel air passage switching atmospheric sampling device |
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| CN102252877A CN102252877A (en) | 2011-11-23 |
| CN102252877B true CN102252877B (en) | 2013-12-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3683701A (en) * | 1970-08-25 | 1972-08-15 | Stauffer Chemical Co | Multiport sampling valve |
| CN2387530Y (en) * | 1999-07-26 | 2000-07-12 | 重庆市环境科学研究院技术开发部 | Intelligent automatic continuous sampler for environmental air |
| CN2924656Y (en) * | 2006-05-31 | 2007-07-18 | 朱庆文 | Delivery module for vending machine |
| CN201327457Y (en) * | 2008-12-29 | 2009-10-14 | 深圳市华测检测技术股份有限公司 | A multi-channel timing control automatic atmospheric sampling system |
| CN202204709U (en) * | 2011-06-16 | 2012-04-25 | 深圳国技仪器有限公司 | Full-automatic multi-channel gas path switching atmospheric sampling device |
-
2011
- 2011-06-16 CN CN2011101627929A patent/CN102252877B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3683701A (en) * | 1970-08-25 | 1972-08-15 | Stauffer Chemical Co | Multiport sampling valve |
| CN2387530Y (en) * | 1999-07-26 | 2000-07-12 | 重庆市环境科学研究院技术开发部 | Intelligent automatic continuous sampler for environmental air |
| CN2924656Y (en) * | 2006-05-31 | 2007-07-18 | 朱庆文 | Delivery module for vending machine |
| CN201327457Y (en) * | 2008-12-29 | 2009-10-14 | 深圳市华测检测技术股份有限公司 | A multi-channel timing control automatic atmospheric sampling system |
| CN202204709U (en) * | 2011-06-16 | 2012-04-25 | 深圳国技仪器有限公司 | Full-automatic multi-channel gas path switching atmospheric sampling device |
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