CN201662493U - Sampling weighting device for fine particulate matters - Google Patents
Sampling weighting device for fine particulate matters Download PDFInfo
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- CN201662493U CN201662493U CN2010201131731U CN201020113173U CN201662493U CN 201662493 U CN201662493 U CN 201662493U CN 2010201131731 U CN2010201131731 U CN 2010201131731U CN 201020113173 U CN201020113173 U CN 201020113173U CN 201662493 U CN201662493 U CN 201662493U
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Abstract
The utility model relates to a sampling weighting device for fine particulate matters, which comprises a sampling device, an air extracting pump and an automatic weighting device, wherein a sampling passage is arranged between the sampling device and the air extracting pump, the automatic weighting device is arranged in the sampling passage, and comprises an automatic lifting support frame, a weighting part and a controller, the automatic lifting support frame comprises a servo motor, a lifting arm and a filter screen frame, the servo motor is used for controlling the lifting and the dropping of the lifting support frame, the lifting arm is connected with the servo motor, the filter screen frame is towed and driven by the lifting arm and can collect the fine particulate matters, the weighting part consists of a weighting sensor capable of weighting the filter screen frame and a support frame for supporting the weighting sensor through being connected, the filter screen frame is placed on the weighting sensor, and the controller is respectively connected with the air extracting pump, the servo motor and the weighting sensor. The utility model separately carries out particle collection and automatic weighting, and avoids the unfavorable influence on actual measured data caused by larger sampling flow quantity.
Description
Technical field
The utility model relates to the atmosphere environment supervision analytical instrument, relates in particular to a kind of sampling weighing device that is used for the fine particle sampling.
Background technology
Along with China's urban construction and rapid development of economy, brought the increase of life, industry and traffic discharging waste gas amount inevitably, particulate in air concentration is improved constantly, ambient air quality constantly descends.If these problems do not draw attention, will cause the further decline of environmental quality, will directly influence China's sustainable economic development and people health.Therefore need environment monitoring department to provide in a large number accurately and reliably and environmental monitoring foundation timely continuously.But, China also has many cities also adopting artificial sample, sample presentation to arrive the monitoring method of lab analysis in the pellet monitoring, not only time-consuming, and the analyte capture rate is low, analysis time long, data report slow and quantity of information is few, its monitoring result can not reflect well that the city particle pollutes variation present situation and the rule on room and time, diffusion tendency and influence to the urban environment particulate in air can not be made continuous judgement, thereby have influenced the raising of urban environmental management level.So, be necessary to set up or improve the ambient air particulate matter automatic monitoring system in national main cities.
In particle monitoring, to and weigh to the particle collection, many in the world automatic weighing methods that adopts have: piezoelectric crystal beat method, light scattering method, vibration sedimentation balance method claim TEOM method, β radiation absorption method again, what application was maximum at present is the TEOM method, and the domestic existing pellet automated monitor that uses all adopts this method basically.But these methods are mainly used in all not adopting automatic weighing device in low discharge (the sampled air flow is in the 30L/min) sampling thief in the sampling thief of big or middle flow (the sampled air flow is more than 75L/min).In, the sampling thief of big flow because comparatively speaking in the unit interval sampling quantity bigger, can in the relatively shorter time, collect the sample size that is fit to research experiment, the accuracy that environmental aspect analyzes is of great advantage for improving.But, in, the sampling thief of big flow is because the big flow velocity of wind speed is fast, gathers like this and weighs when carrying out simultaneously automatically, flow velocity can have a strong impact on the weighing results of particle, the result who weighs is just nonsensical, says nothing of and realizes measurement in real time.
The utility model content
A kind of sampling weighing device that is used for the fine particle sampling that technical problem to be solved in the utility model is to provide at the deficiencies in the prior art is during this sampling weighing device can cooperate, traffic sampling device greatly, to the particle collection with weigh.
In order to realize the foregoing invention purpose, a kind of sampling weighing device that is used for the fine particle sampling, it is characterized in that, comprise sampling thief, aspiration pump, automatic weighing device, between sampling thief and aspiration pump, sampling channel is set, described automatic weighing device is arranged in the sampling channel, automatic weighing device comprises the automatic lifting carriage, weigh parts and control device, described automatic lifting carriage comprises the servomotor of control shears lifting, the lifting arm that is connected with servomotor and drive screen holder lifting and that can gather fine particle by lifting arm traction, the described parts of weighing are connected to form by LOAD CELLS that can claim screen holder and the support that supports LOAD CELLS, and screen holder places on the LOAD CELLS; Control device is connected with aspiration pump, servomotor, LOAD CELLS respectively.
Further, in the utility model, servomotor and lifting arm adopt screw drive mode, and servomotor must be a low-speed micro-motor.
The screen holder bottom is installed the trapezoidal locating piece of chamfering and is cooperated with the trapezoidal bearing bar of the chamfering of LOAD CELLS.
Described inter-process device is the programmable microprocessor device.
Described programmable microprocessor is an embedded scm.
Described control device links to each other with memory module.
Described inter-process device connects the data communication interface module of control host computer.
Using method of the present utility model is: aspiration pump starts, sampling thief is started working, to push up on the screen holder by the automatic lifting carriage, in the filter paper on the collected screen holder of fine particle, at this moment, screen holder does not contact with the parts of weighing, so the impulsive force of air can not exert an influence to real-time measuring data.When weighing then, the aspiration pump stall, screen holder drops on the LOAD CELLS, breaks away from lifting arm, and control device just can become weight data with the electrical signal conversion of sensor output, exports in real time on data communication interface or display again.
The utility model has also been avoided greatly measured data being had a negative impact because of sampling flow when helping sampling thief to obtain the real-time mass concentration of sampling particle.So just can reflect well that the city particle pollutes variation present situation and the rule on room and time, can make continuous judgement the diffusion tendency and the influence of urban environment particulate in air.
The utility model is simple in structure, and is easy to process.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the block scheme of control circuit structure.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, sampling channel 11 is set between sampling thief 1 and aspiration pump, and automatic weighing device comprises the automatic lifting carriage, weigh parts and the control device that is connected with these two parts, and automatic weighing device is arranged in the sampling channel 11, top is connected with sampling thief 1, and the bottom is connected with aspiration pump 2.The automatic lifting carriage of automatic weighing device is by servomotor 4, lifting arm 3 and screen holder 5 are formed, servomotor 4 adopts the slip screw kind of drive with lifting arm 3, the Electric Machine Control screw rod rotates, the nut that is fixed on the lifting arm can move up and down, rise or descend with traction lifting arm 3, front end at lifting arm 3 is provided with the protuberance 14 that is used to promote screen holder, on screen holder 5 outer rings, boss 15 is arranged, boss 15 is positioned at the protuberance top, in the present embodiment, protuberance and boss are triangle, when lifting arm 3 rises and descends, protuberance 14 withstands boss 15, makes lifting arm 3 traction screen holders 5 rise simultaneously and descend.Screen holder 5 bottom installing and locating pieces 9 cooperate with the bearing bar 10 of LOAD CELLS, and they all are that to be chamfering trapezoidal, so that screen holder 5 descends and can accurately fall the position on the center of LOAD CELLS 7 when weighing.Servomotor 4 must be a low-speed micro-motor, guarantees that traction screen holder 5 descends when being placed on the LOAD CELLS 7, the result who can unlikely influence gently weighs.The parts of weighing are made up of LOAD CELLS 7 and LOAD CELLS support 8, and LOAD CELLS support 8 is fixed on the outer wall of automatic weighing device, guarantee very firmly to weigh accurately.
As shown in Figure 3, control device is a programmable microprocessor 20, and the electric signal that LOAD CELLS 8 is exported converts weight data to by the software processes algorithm, and the particle weight data is analyzed, and the data of handling is deposited in the memory module (E of connection
2PROM) in, data also can send by the data communication interface module 22 that processor 20 is transferred to host computer, the man-machine conversation 25 of microprocessor 20 is made up of keyboard and display, the interval time of each sampling, can notice microprocessor 20 be set by keyboard, the time showing of keyboard input is convenient to real-time grasp on LCD.Wherein, data processing unit adopts the monolithic embedded computer, passes through I
2The C bus links to each other with storage unit 21, the data sampling input and the man-machine conversation 25 of host computer data communication module 22, LOAD CELLS 7 all adopt the RS232 serial mode to connect, and the control of servomotor 4 and aspiration pump 2 drives the relay realization by general purpose I/O of single-chip microcomputer.
Using method of the present utility model is: during sampling, aspiration pump starts, and sampling thief is started working, and servomotor 4 will withstand on shell upper vent hole inboard on the screen holder 5, is sampled on the collected filter paper 6 of fine particle after device 1 classification.Set the sampling time by keyboard, after sampling is finished, aspiration pump 2 stalls, servomotor 4 work lower screen holder 5 it are dropped on the LOAD CELLS 7, and at this moment lifting arm 3 continues protuberance 14 disengagings of decline on boss on the screen holder 5 15 and lifting arm 3.The electric signal of LOAD CELLS output is transferred to control device 20, converts weight data to, and control device 20 is stored in the qualitative data that sensor obtains in the memory module 21, and shows by display.Related data is sent to host computer data communication module 22 on also can be as required and is shared with system.After one-shot measurement was finished, servomotor 4 drove lifting arm 3 once more and rises, and protuberance 14 and boss 15 are withstood, and with screen holder 5 liftings, can carry out new one again and take turns sampled measurements.
The utility model is when helping sampling thief to obtain the real-time mass concentration of sampling particle, also avoided greatly measured data being had a negative impact because of sampling flow, and it is simple in structure, easy to process, and make that particle capture rate height in the environment, analysis time are short, data report soon, the reporting information amount is many.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. one kind is used for the sampling weighing device that fine particle is sampled, it is characterized in that, comprise sampling thief, aspiration pump, automatic weighing device, between sampling thief and aspiration pump, sampling channel is set, automatic weighing device is arranged in the sampling channel, automatic weighing device comprises the automatic lifting carriage, weigh parts and control device, described automatic lifting carriage comprises the servomotor of control shears lifting, the lifting arm that is connected with servomotor and drive screen holder lifting and that can gather fine particle by lifting arm traction, the described parts of weighing are connected to form by LOAD CELLS that can claim screen holder and the support that supports LOAD CELLS, and screen holder places on the LOAD CELLS; Control device is connected with aspiration pump, servomotor, LOAD CELLS respectively.
2. on-line automatic weighing device according to claim 1 is characterized in that, servomotor and lifting arm adopt screw drive mode.
3. on-line automatic weighing device according to claim 2 is characterized in that servomotor is a low-speed micro-motor.
4. on-line automatic weighing device according to claim 1 is characterized in that, the trapezoidal protuberance of chamfering is set on lifting arm, cooperates with chamfering trapezoid boss on the screen holder outer ring.
5. on-line automatic weighing device according to claim 1 is characterized in that, described inter-process device is the programmable microprocessor device.
6. on-line automatic weighing device according to claim 5 is characterized in that, described programmable microprocessor is an embedded scm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201131731U CN201662493U (en) | 2010-02-11 | 2010-02-11 | Sampling weighting device for fine particulate matters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201131731U CN201662493U (en) | 2010-02-11 | 2010-02-11 | Sampling weighting device for fine particulate matters |
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| Publication Number | Publication Date |
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| CN201662493U true CN201662493U (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201131731U Expired - Fee Related CN201662493U (en) | 2010-02-11 | 2010-02-11 | Sampling weighting device for fine particulate matters |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616168A (en) * | 2012-04-10 | 2012-08-01 | 力合科技（湖南）股份有限公司 | Movable type air monitoring car |
| CN103234616A (en) * | 2013-04-24 | 2013-08-07 | 丹东百特仪器有限公司 | Particulate matter weighing device consistent to environment |
| CN103759988A (en) * | 2014-01-16 | 2014-04-30 | 深圳市华测检测技术股份有限公司 | Atmospheric particulate collection device |
| CN104374456A (en) * | 2014-11-11 | 2015-02-25 | 大庆市日上仪器制造有限公司 | Automatic distilling range weighing device |
| CN105466734A (en) * | 2015-12-18 | 2016-04-06 | 镇江市宇驰检测技术有限公司 | Medium-flow dust sampler for atmosphere sampling investigation |
| CN106092843A (en) * | 2016-06-29 | 2016-11-09 | 上海师范大学 | A kind of PM2.5 real-time detecting system based on Fibre Optical Sensor |
| CN106323828A (en) * | 2015-06-29 | 2017-01-11 | 上海仪器仪表研究所 | Environment sampling and monitoring system and method based on fine particles |
| CN106441539A (en) * | 2016-09-18 | 2017-02-22 | 南京航空航天大学 | Fast weighing balance for logistics and method |
| CN109186847A (en) * | 2018-10-08 | 2019-01-11 | 广州达意隆包装机械股份有限公司 | Jetting pressure detection device and sterile filling production system |
| CN112504711A (en) * | 2020-11-27 | 2021-03-16 | 保定市金马漏水检测有限公司 | Industrial cooling tower thermal performance test system |
| CN113324885A (en) * | 2021-05-21 | 2021-08-31 | 河南建筑职业技术学院 | Gardens greenery patches air particulate matter detects and early warning device |
| CN113405867A (en) * | 2021-07-26 | 2021-09-17 | 天津环科环境规划科技发展有限公司 | Particulate matter sampling device and particulate matter detection device |
| CN117451440A (en) * | 2023-10-09 | 2024-01-26 | 中环清科(嘉兴)环境技术研究院有限公司 | Carbon emission detection equipment for environmental protection |
-
2010
- 2010-02-11 CN CN2010201131731U patent/CN201662493U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616168A (en) * | 2012-04-10 | 2012-08-01 | 力合科技（湖南）股份有限公司 | Movable type air monitoring car |
| CN103234616A (en) * | 2013-04-24 | 2013-08-07 | 丹东百特仪器有限公司 | Particulate matter weighing device consistent to environment |
| CN103759988A (en) * | 2014-01-16 | 2014-04-30 | 深圳市华测检测技术股份有限公司 | Atmospheric particulate collection device |
| CN103759988B (en) * | 2014-01-16 | 2016-05-18 | 华测检测认证集团股份有限公司 | Atmospheric particulates collecting device |
| CN104374456A (en) * | 2014-11-11 | 2015-02-25 | 大庆市日上仪器制造有限公司 | Automatic distilling range weighing device |
| CN106323828A (en) * | 2015-06-29 | 2017-01-11 | 上海仪器仪表研究所 | Environment sampling and monitoring system and method based on fine particles |
| CN105466734A (en) * | 2015-12-18 | 2016-04-06 | 镇江市宇驰检测技术有限公司 | Medium-flow dust sampler for atmosphere sampling investigation |
| CN106092843A (en) * | 2016-06-29 | 2016-11-09 | 上海师范大学 | A kind of PM2.5 real-time detecting system based on Fibre Optical Sensor |
| CN106441539A (en) * | 2016-09-18 | 2017-02-22 | 南京航空航天大学 | Fast weighing balance for logistics and method |
| CN109186847A (en) * | 2018-10-08 | 2019-01-11 | 广州达意隆包装机械股份有限公司 | Jetting pressure detection device and sterile filling production system |
| CN109186847B (en) * | 2018-10-08 | 2023-12-15 | 广州达意隆包装机械股份有限公司 | Spray stamping force detection device and sterile filling production system |
| CN112504711A (en) * | 2020-11-27 | 2021-03-16 | 保定市金马漏水检测有限公司 | Industrial cooling tower thermal performance test system |
| CN113324885A (en) * | 2021-05-21 | 2021-08-31 | 河南建筑职业技术学院 | Gardens greenery patches air particulate matter detects and early warning device |
| CN113324885B (en) * | 2021-05-21 | 2023-08-11 | 河南建筑职业技术学院 | Gardens greenery patches air particulate matter detects and early warning device |
| CN113405867A (en) * | 2021-07-26 | 2021-09-17 | 天津环科环境规划科技发展有限公司 | Particulate matter sampling device and particulate matter detection device |
| CN117451440A (en) * | 2023-10-09 | 2024-01-26 | 中环清科(嘉兴)环境技术研究院有限公司 | Carbon emission detection equipment for environmental protection |
| CN117451440B (en) * | 2023-10-09 | 2024-05-14 | 中环清科(嘉兴)环境技术研究院有限公司 | Carbon emission detection equipment for environmental protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20170211 |