CN208607052U - A kind of negative-pressure ward atmosphere sampler of achievable Automatic change film - Google Patents
A kind of negative-pressure ward atmosphere sampler of achievable Automatic change film Download PDFInfo
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- CN208607052U CN208607052U CN201821289127.XU CN201821289127U CN208607052U CN 208607052 U CN208607052 U CN 208607052U CN 201821289127 U CN201821289127 U CN 201821289127U CN 208607052 U CN208607052 U CN 208607052U
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- timesharing
- membranous disc
- driver
- air inlet
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Abstract
The utility model discloses a kind of negative-pressure ward atmosphere samplers of achievable Automatic change film, including cabinet, air inlet pipe, more piece sampling head, suction pump, membranous disc, shaft, low-speed micro-motor, timesharing driver, switchboard and battery, air inlet pipe is equipped with notch, membranous disc is equipped with 12 diaphragms, and diaphragm is inserted in notch.The timesharing driver of the utility model controls low-speed micro-motor by pulse signal and angle offset rotation is fixed, to drive membranous disc to rotate clockwise by shaft, achieve the effect that diaphragm is replaced in timing with this, can be derived that atmosphere pollution situation in different time periods within one day.In short, the utility model is designed reasonably, easy to operate, it is suitable for long-time Continuity Analysis and tests.
Description
Technical field
The utility model belongs to environmental protection technical field, and in particular to a kind of negative-pressure ward of achievable Automatic change film is big
Gas sampling apparatus.
Background technique
With the fast development of industry, the range of atmosphere pollution is also increasingly wider, and dust, tail gas etc. are flooded with the week of people
It encloses, has seriously affected people's lives environment, for mankind itself and sustainable development, it is necessary to atmosphere pollution be carried out stringent
Monitoring and improvement.
Currently, when being monitored to atmosphere, it usually needs air is sampled, then carries out constituent analysis again, with
This finds pollution sources, is administered to take reasonable measure from pollution root.The acquisition method of atmospheric sample is generally divided into directly
Sampling method and two kinds of (concentration) sampling method of enrichment are connect, direct sampling method is generally divided into glass syringe sampling method, polybag sampling
Method, bladders sampling method, air collecting pipe sampling method and sampling bottle sampling method etc..Direct sampling method is simple with method, can comparatively fast predict
As a result the advantages that, but can only measure that concentration is larger or the pollutant of monitoring method high sensitivity, and what is obtained is very short time
Interior mean concentration or instantaneous concentration, it is not accurate enough.When relatively low (the ppm-ppb quantity of the pollutant concentration in atmosphere
Grade), direct sampling method tends not to the requirement for meeting analysis method detection limit, therefore needs with enrichment (concentration) sampling method to atmosphere
In pollutant be concentrated.The Concentration Sampling time is generally long, measures the mean concentration that result represents sampling periods, more can
Reflect the truth of atmosphere pollution.But general device is not portable enough, and cumbersome laborious, operating efficiency is not high.
Utility model content
For the technical problem present on, the utility model provides a kind of negative-pressure ward atmosphere of achievable Automatic change film
Sampling apparatus.
The technical solution of the utility model are as follows: a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film, including
Cabinet, air inlet pipe, suction pump, membranous disc, shaft, low-speed micro-motor, timesharing driver, switchboard and battery, wherein low speed
Micromotor and timesharing driver are commercial product, and the suction pump is fixed on the bottom left of the cabinet, suction pump
Gas outlet is located at outside cabinet, and gas outlet is equipped with electronic gas flowmeter, contains independent electrical inside electronic gas flowmeter
Pond, for counting throughput, the lower end of the air inlet pipe is connected with the air inlet of aspiration pump, and upper end upwardly extends and runs through cabinet
Top, and the top of air inlet pipe is connected with more piece sampling head by bearing, air inlet pipe is located in the box body part and offers opening
Notch to the right, the timesharing driver are fixed on the bottom right of the cabinet, and the low-speed micro-motor is electrically connected at
The top of timesharing driver, timesharing driver control low-speed micro-motor by pulse signal and angle offset rotation are fixed,
The shaft is connected to vertically on the output shaft of low-speed micro-motor, and the top of shaft is that diameter is less than through-hole and shaft ontology
Threaded post, the top that the membranous disc is set on threaded post by being located at the through-hole of center, is finally screwed by nut again, will
Membranous disc is fixed on the top of shaft.Circumferentially uniformly distributed on membranous disc to have 12 diaphragms, membranous disc is horizontally through the notch, is used for
Close horizontal be inserted in air inlet pipe of single diaphragm is formed into closing connection, the right side of timesharing driver is arranged in the battery, and
For the power supply of suction pump, timesharing driver and low-speed micro-motor, the switchboard is arranged on the lateral wall of cabinet, in switchboard
Equipped with electronic timer, for controlling the switch of suction pump, timesharing driver, when control of electronic timer, is a length of for 24 hours.
Further, the more piece sampling head includes the 2-5 hollow poles that connection is rotated upwardly and downwardly by bearing, each described
2-3 suction nozzle is horizontally connected on hollow pole, the length of each hollow pole is 50cm, be can be achieved at many levels by splicing
Sampling, so that sample data is more abundant, furthermore the end of suction nozzle is bowl-shape, and suction nozzle, which interlocks, is laterally located at hollow pole side
Face, and hollow pole is connected by bearing, when there is wind, the end stress of suction nozzle can be around bearing rotary, on the one hand can be with
It offsets wind-force to destroy, on the other hand can rotate sampling, sample is more uniform.
Further, the upper end of the air inlet pipe is equipped with electronic valve, and the electronic valve electrically connects with the switchboard
Connect, after electronic timer timing, switchboard is closed, suction pump, low-speed micro-motor including electronic valve, point
When driver be turned off, can prevent air-flow from actively entering in device, diaphragm is further polluted, analytical error is caused.
Further, the membranous disc is equipped with and numbers correspondingly with the diaphragm, convenient for determination each period
Diaphragm.
Further, it is surrounded by 4-6 hand hole close to the through-hole of the membranous disc, convenient for being placed manually to membranous disc,
Taking-up and correct operation.
Further, the top of the box above the membranous disc is equipped with dodge gate, is conveniently replaceable membranous disc.
Further, the diaphragm is the up big and down small double-layer structure in aperture, compared to the diaphragm of single layer structure, the bilayer
The diaphragm of structure can effectively prevent clogging of the diaphragm when long-time is adsorbed, and reduce resistance system, while improving sample
Product collecting efficiency.
The working method of the utility model are as follows: open the dodge gate, user's finger passes through the hand hole, first by membranous disc
It is inserted into the notch, then the threaded post on through-hole alignment shaft top is pressed down on, finally screwed again by nut downwards,
Membranous disc is fixed on to the top of shaft, then membranous disc and shaft are rotated by hand hole, in the membrane registration to notch that first place is numbered,
Position correction is completed, dodge gate is closed.More piece sampling head is connected by bearing in the upper end of air inlet pipe as desired, is started switch
Plate and electronic gas flowmeter, suction pump, low-speed micro-motor, timesharing driver and electronic valve are opened, and suction pump starts
It is evacuated from the suction nozzle of more piece sampling head, after diaphragm of the air-flow through being located at notch carries out interception filtering, then through electronic gas
After flowmeter metering outside discharger, low-speed micro-motor is controlled by pulse signal every 2h timesharing driver, angle is fixed
Offset rotation is spent, drives membranous disc to rotate clockwise by shaft, is located at the diaphragm of next number in notch and is adsorbed, one
After the timing for 24 hours of electronic timer, switchboard closes suction pump including electronic valve, low speed micro electric
Machine, timesharing driver are turned off, and can prevent air-flow from actively entering in device, are further polluted to diaphragm, are caused analytical error.It goes
Except membranous disc, corresponding diaphragm is analyzed according to number above respectively, show that atmosphere in different time periods is dirty within one day
Contaminate situation.
Compared with prior art, the utility model has the following beneficial effects: the timesharing driver of the utility model passes through pulse
Angle offset rotation is fixed in signal control low-speed micro-motor, so that membranous disc be driven to rotate clockwise, reaches timing with this
The effect for replacing diaphragm, waits and enough obtains atmosphere pollution situation in different time periods within one day.In addition, the utility model can lead to
Multi-level sampling is realized in the splicing for crossing hollow pole, so that sample data is more abundant, and hollow pole is rotated by bearing
Connection is provided with suction nozzle the side of hollow pole is also laterally staggered, and when there is wind, the end stress of suction nozzle can be around bearing
On the one hand rotation can offset wind-force destruction, on the other hand can rotate sampling, sample is more uniform.In short, the utility model
Design is rationally, easy to operate, is suitable for long-time Continuity Analysis and tests.
Detailed description of the invention
Fig. 1 is the overall structure cross-sectional view of the utility model；
Fig. 2 is the main view of the membranous disc of the utility model.
Wherein, 1- cabinet, 2- air inlet pipe, 3- suction pump, 4- membranous disc, 5- shaft, 6- low-speed micro-motor, 7- timesharing driving
Device, 8- switchboard, 9- battery, 10- electronic gas flowmeter, 11- bearing, 12- more piece sampling head, 13- notch, 14- through-hole,
15- diaphragm, 16- electronic timer, the hollow pole of 17-, 18- suction nozzle, 19- electronic valve, 20- hand hole, 21- dodge gate.
Specific embodiment
The utility model is further described in detail in 1-2 and specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film, including cabinet 1, air inlet pipe 2,
Suction pump 3, membranous disc 4, shaft 5, low-speed micro-motor 6, timesharing driver 7, switchboard 8 and battery 9, wherein low speed micro electric
Machine 6 and timesharing driver 7 are commercial product, and suction pump 3 is fixed on the bottom left of cabinet 1, and the gas outlet of suction pump 3 is located at
Outside cabinet 1, and gas outlet is equipped with electronic gas flowmeter 10, contains independent battery inside electronic gas flowmeter 10, uses
In statistics throughput, the lower end of air inlet pipe 2 is connected with the air inlet of aspiration pump 3, and upper end upwardly extends and run through 1 top of cabinet,
And the top of air inlet pipe 2 is connected with more piece sampling head 12 by bearing 11, as shown in Figure 1, more piece sampling head 12 includes 2 by axis
The 11 hollow poles 17 for rotating upwardly and downwardly connection are held, 2 suction nozzles 18, each hollow section are horizontally connected on each hollow pole 17
The length of bar 17 is 50cm, and multi-level sampling can be achieved by splicing, so that sample data is more abundant, furthermore suction nozzle 18
End be it is bowl-shape, suction nozzle 18, which interlocks, is laterally located at hollow 17 side of pole, and hollow pole 17 is connected by bearing 11, when
When having wind, the end stress of suction nozzle 18 can be rotated around bearing 11, first is that wind-force destruction can be offset, on the other hand can be rotated
Sampling, sample are more uniform.As shown in Figure 1, the upper end of air inlet pipe 2 is equipped with electronic valve 19,8 electricity of electronic valve 19 and switchboard
Property connection, after 16 timing of electronic timer, switchboard 8 close, the suction pump 3 including electronic valve 19, low speed
Micromotor 6, timesharing driver 7 are turned off, and can prevent air-flow from actively entering in device, are further polluted, are caused to diaphragm 15
Analytical error.The part that air inlet pipe 2 is located in cabinet 1 offers the notch 13 of opening to the right, and timesharing driver 7 is fixed on cabinet
1 bottom right, low-speed micro-motor 6 are electrically connected at the top of timesharing driver 7, and timesharing driver 7 passes through pulse signal
Angle offset rotation is fixed in control low-speed micro-motor 6, and shaft 5 is connected to vertically on the output shaft of low-speed micro-motor 6,
The top of shaft 5 is the threaded post that diameter is less than 5 ontology of through-hole 14 and shaft, and membranous disc 4 passes through the through-hole 14 positioned at center
It is set on the top of threaded post, is finally screwed again by nut, membranous disc 4 is fixed on to the top of shaft 5.As shown in Fig. 2, membranous disc
It is circumferentially uniformly distributed on 4 to have 12 diaphragms 15, wherein membranous disc 4 is equipped with numbers correspondingly with diaphragm 15, convenient for determining
The diaphragm 15 of each period, wherein diaphragm 15 is the up big and down small double-layer structure in aperture, compared to the diaphragm of single layer structure
15, the diaphragm 15 of the double-layer structure can effectively prevent clogging of the diaphragm when long-time is adsorbed, and reduce resistance system,
Sample collecting efficiency is improved simultaneously.Membranous disc 4 is horizontally through notch 13, for horizontal being inserted in single diaphragm 15 is close in air inlet pipe 2
Form closing connection.As shown in Fig. 2, the through-hole 14 close to membranous disc 4 is surrounded by 4 hand holes 20, convenient for carrying out manually to membranous disc 4
Placement, taking-up and correct operation.It as shown in Figure 1, the right side of timesharing driver 7 is arranged in battery 9, and is suction pump 3, timesharing
Driver 7 and low-speed micro-motor 6 are powered, and switchboard 8 is arranged on the lateral wall of cabinet 1, and electric time-keeping is equipped in switchboard 8
Device 16, for controlling the switch of suction pump 3, timesharing driver 7, when control of electronic timer 16, is a length of for 24 hours.Positioned at membranous disc 4
It is equipped with dodge gate 21 at the top of the cabinet 1 of top, is conveniently replaceable membranous disc 4.
The working method of the present embodiment are as follows: open dodge gate 21, user's finger passes through hand hole 20, is first inserted into membranous disc 4
Then through-hole 14 is directed at downwards the threaded post on 5 top of shaft by notch 13, press down on, finally screwed again by nut, by film
Disk 4 is fixed on the top of shaft 5, then rotates membranous disc 4 and shaft 5 by hand hole 20, and the diaphragm 15 of first place number is registered to slot
In mouth 13, position correction is completed, closes dodge gate 21.More piece is connected by bearing 11 in the upper end of air inlet pipe 2 as desired to adopt
Sample head 12 starts switch plate 8 and electronic gas flowmeter 10, suction pump 3, low-speed micro-motor 6, timesharing driver 7 and electronics
Valve 19 is opened, and the beginning of suction pump 3 is evacuated from the suction nozzle 18 of more piece sampling head 12, and air-flow passes through the film positioned at notch 13
After piece 15 carries out interception filtering, then outside discharger, pass through every 2h timesharing driver 7 after the metering of electronic gas flowmeter 10
Angle offset rotation is fixed in pulse signal control low-speed micro-motor 6, drives membranous disc 4 to rotate clockwise by shaft 5, makes
The diaphragm 15 of next number, which is located in notch 13, to be adsorbed, until after the timing for 24 hours of electronic timer 16, switch
Plate 8 closes suction pump 3 including electronic valve 19, low-speed micro-motor 6, timesharing driver 7 are turned off, and can prevent air-flow
Actively enter in device, diaphragm 15 is further polluted, analytical error is caused.Membranous disc 4 is removed, according to number above to correspondence
Diaphragm 15 analyzed respectively, obtain atmosphere pollution situation in different time periods within one day.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or be equal to part of technical characteristic
Replacement；And these are modified or replaceed, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (7)
1. a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film, which is characterized in that including cabinet (1), air inlet pipe
(2), suction pump (3), membranous disc (4), shaft (5), low-speed micro-motor (6), timesharing driver (7), switchboard (8) and battery
(9), the suction pump (3) is fixed on the bottom left of the cabinet (1), and the gas outlet of suction pump (3) is located at cabinet (1) outside
Portion, and gas outlet is equipped with electronic gas flowmeter (10), the lower end of the air inlet pipe (2) and the air inlet phase of suction pump (3)
Even, upper end upwardly extends and runs through at the top of cabinet (1), and the top of air inlet pipe (2) is connected with more piece sampling by bearing (11)
Head (12), the part that air inlet pipe (2) is located in cabinet (1) offer the notch (13) of opening to the right, the timesharing driver (7)
It is fixed on the bottom right of the cabinet (1), the low-speed micro-motor (6) is electrically connected at the top of timesharing driver (7),
The shaft (5) is connected to vertically on the output shaft of low-speed micro-motor (6), and the membranous disc (4) is by being located at center
Through-hole (14) is set on the top of shaft (5), and circumferentially uniformly distributed on membranous disc (4) to have 12 diaphragms (15), membranous disc (4) is laterally
Across the notch (13), for by single diaphragm (15) it is close it is horizontal be inserted in air inlet pipe (2), battery (9) setting exists
The right side of timesharing driver (7), and be suction pump (3), timesharing driver (7) and low-speed micro-motor (6) power supply, the switch
Plate (8) is arranged on the lateral wall of cabinet (1), is equipped with electronic timer (16) in switchboard (8), for control suction pump (3),
The switch of timesharing driver (7).
2. a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film as described in claim 1, which is characterized in that institute
Stating more piece sampling head (12) includes multiple hollow poles (17) that connection is rotated upwardly and downwardly by bearing (11), each hollow pole
(17) 2-3 suction nozzle (18) are horizontally connected on.
3. a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film as described in claim 1, which is characterized in that institute
The upper end for stating air inlet pipe (2) is equipped with electronic valve (19), and the electronic valve (19) and the switchboard (8) are electrically connected.
4. a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film as described in claim 1, which is characterized in that institute
Membranous disc (4) are stated to be equipped with and the one-to-one number of the diaphragm (15).
5. a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film as described in claim 1, which is characterized in that lean on
The through-hole (14) of the nearly membranous disc (4) is surrounded by 4-6 hand hole (20).
6. a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film as described in claim 1, which is characterized in that position
Dodge gate (21) are equipped at the top of the cabinet (1) above the membranous disc (4).
7. a kind of negative-pressure ward atmosphere sampler of achievable Automatic change film as described in claim 1, which is characterized in that institute
Stating diaphragm (15) is double-layer structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821289127.XU CN208607052U (en) | 2018-08-10 | 2018-08-10 | A kind of negative-pressure ward atmosphere sampler of achievable Automatic change film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821289127.XU CN208607052U (en) | 2018-08-10 | 2018-08-10 | A kind of negative-pressure ward atmosphere sampler of achievable Automatic change film |
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| CN208607052U true CN208607052U (en) | 2019-03-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044663A (en) * | 2019-04-18 | 2019-07-23 | 武汉理工大学 | Laboratory flames intermediate product sampling system and analysis method |
| CN110160842A (en) * | 2019-06-14 | 2019-08-23 | 重庆渝佳环境影响评价有限公司 | A kind of atmospheric sampling detector |
| CN114323822A (en) * | 2022-01-06 | 2022-04-12 | 浙江中昱环境工程股份有限公司 | Waste gas sampling monitoring devices in mill's environment |
-
2018
- 2018-08-10 CN CN201821289127.XU patent/CN208607052U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044663A (en) * | 2019-04-18 | 2019-07-23 | 武汉理工大学 | Laboratory flames intermediate product sampling system and analysis method |
| CN110044663B (en) * | 2019-04-18 | 2020-08-25 | 武汉理工大学 | Laboratory flame intermediate product sampling system and analysis method |
| CN110160842A (en) * | 2019-06-14 | 2019-08-23 | 重庆渝佳环境影响评价有限公司 | A kind of atmospheric sampling detector |
| CN110160842B (en) * | 2019-06-14 | 2021-11-30 | 重庆渝佳环境影响评价有限公司 | Atmospheric sampling detector |
| CN114323822A (en) * | 2022-01-06 | 2022-04-12 | 浙江中昱环境工程股份有限公司 | Waste gas sampling monitoring devices in mill's environment |
| CN114323822B (en) * | 2022-01-06 | 2023-11-14 | 浙江中昱环境工程股份有限公司 | Waste gas sampling monitoring device in factory environment |
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