CN106370483B - Seven-station turntable type heavy metal enrichment sampling device based on nano functional material - Google Patents
Seven-station turntable type heavy metal enrichment sampling device based on nano functional material Download PDFInfo
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- CN106370483B CN106370483B CN201610964053.4A CN201610964053A CN106370483B CN 106370483 B CN106370483 B CN 106370483B CN 201610964053 A CN201610964053 A CN 201610964053A CN 106370483 B CN106370483 B CN 106370483B
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- cutter
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- air tap
- guide post
- heavy metal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4088—Concentrating samples by other techniques involving separation of suspended solids filtration
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of spectrum analysis instruments, in particular to a seven-station turntable type heavy metal enrichment sampling device based on nano functional materials, which comprises a bottom plate, a cutter, a turntable, a cutter supporting mechanism, a turnover motor, a membrane holder, an upper air tap, a lower air tap and a filter membrane, wherein the bottom plate is provided with a plurality of grooves; the rotary table is driven to rotate by a servo motor arranged on the bottom plate, at least two through holes are formed in the periphery of the disc surface of the rotary table, the membrane support is arranged in each through hole, the turnover motor is fixed on one side of each through hole, the output end of the turnover motor is connected with the membrane support, and the filter membrane is placed on the membrane support; the cutter supporting mechanism is arranged on one side of the turntable and is used for supporting the cutter and controlling the upper air tap and the lower air tap to move to the position of the filter membrane. The process is automatically carried out in the closed space, so that the external interference is shielded, and the detection accuracy is effectively improved.
Description
Technical Field
The invention relates to the technical field of spectrum analysis instruments, in particular to a seven-station turntable type heavy metal enrichment sampling device based on nano functional materials.
Background
In the technical field of gas sampling instruments, the full-automatic sampler is widely applied to automatic sampling of air samples by virtue of high automation degree and strong stability, and a rapid and convenient sampling device is provided for detecting PM10, PM2.5, heavy metals and other components in gas. The full-automatic sampler technology mainly uses a singlechip to control a motor, a mechanical arm and a peristaltic pump, thereby realizing the function of automatic membrane replacement.
At present, the most common gas sampling instrument is an automatic membrane replacement sampling instrument, wherein a filter membrane in an air cylinder is jacked up to a specific station by air pressure, then a gas claw is controlled to send the filter membrane to a sampling station, and after the sampling is finished, the gas claw is sent to a storage cylinder by the filter membrane. Although the design is simple in structure, the filter membrane is easy to pollute in the movement process, so that the subsequent analysis and treatment of the sample are interfered.
Disclosure of Invention
The invention aims to overcome the defects of the technology, and provides a seven-station turntable type heavy metal enrichment sampling device based on nano functional materials, which can avoid the pollution of samples in the process of collection.
The invention adopts the following technical scheme to realize the aim:
seven station carousel formula heavy metal enrichment sampling device based on nano-functional material, its characterized in that: comprises a bottom plate, a cutter, a rotary table, a cutter supporting mechanism, a turnover motor, a membrane support, an upper air tap, a lower air tap and a filter membrane; the rotary table is driven to rotate by a servo motor arranged on the bottom plate, at least two through holes are formed in the periphery of the disc surface of the rotary table, the membrane support is arranged in each through hole, the turnover motor is fixed on one side of each through hole, the output end of the turnover motor is connected with the membrane support, and the filter membrane is placed on the membrane support; the cutter supporting mechanism is arranged on one side of the turntable and is used for supporting the cutter and controlling the upper air tap and the lower air tap to move to the position of the filter membrane.
The cutter supporting mechanism comprises a fixed plate, a left guide column, a right guide column, a first motor and a second motor; the lower parts of the left guide post and the right guide post are respectively fixed on the bottom plate, one end of the fixing plate is fixedly connected with the lower part of the cutter, the other end of the fixing plate is fixedly connected with the upper parts of the left guide post and the right guide post respectively, the first motor is arranged on the fixing plate, the output end of the first motor is provided with a first lead screw, the first lead screw is matched with a first lead screw sleeve, the first lead screw sleeve is fixed at one end of a first sliding plate, the first sliding plate is connected with the left guide post through a first sliding sleeve, the other end of the first sliding plate is connected with a telescopic pipe, the telescopic pipe is inserted into the lower part of the cutter and is in sealing fit with the lower part of the cutter, and the upper air tap is arranged at the lower part of the telescopic pipe; the second motor is fixed on the right guide post through a connecting plate, the output end of the second motor is provided with a second screw rod, the second screw rod is matched with a second screw rod sleeve, the second screw rod sleeve is fixed at one end of a second sliding plate, the second sliding plate is connected with the left guide post through a second sliding sleeve, the other end of the second sliding plate is connected with a fixed pipe, the upper part of the fixed pipe is connected with the lower air tap, and the lower part of the fixed pipe is communicated with a negative pressure pump; the upper air tap and the lower air tap are respectively positioned at the upper side and the lower side of the turntable and correspond to the through holes.
Preferably, eight through holes are uniformly formed in the disc surface of the rotary disc, and each through hole is correspondingly provided with a set of overturning motor and a membrane support.
Preferably, the fixing plates are two, and the left guide post and the right guide post are sequentially fixed with the cutter up and down.
Preferably, the diameters of the upper air tap and the lower air tap are the same as the diameter of the filter membrane.
Compared with the prior art, the invention has the beneficial effects that the two motors can drive the screw rod to rotate, so that the up-and-down movement of the two air nozzles is controlled, the upper air nozzle moves downwards, and the lower air nozzle moves upwards until the two air nozzles clamp the membrane support, thereby forming a closed space, having good air tightness and improving the trapping efficiency of the filter membrane on particles. The filter membrane after gathering is driven by the carousel and rotates, delivers the appointed station with the filter membrane, and the upset of upset motor, the particulate matter on the filter membrane falls into the collection cup, and this process is automatic going on in airtight space, has shielded external interference, the effectual accuracy that improves the detection.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a cutter supporting mechanism according to the present invention.
Detailed Description
The following detailed description of the invention refers to the accompanying drawings and preferred embodiments.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 and 2, a seven-station turntable type heavy metal enrichment sampling device based on nano functional materials comprises a bottom plate 1, a cutter 2 (PM 10 cutter is adopted in the design), a turntable 3, a cutter supporting mechanism 4, a turnover motor 5, a membrane support 6, an upper air tap 7, a lower air tap 8 and a filter membrane 9; the cutter can use impact cutter, principle is that the velocity of flow of gas can increase when the air sample flows from wide bore to narrow bore, in this design, through experimental verification speed can reach about 2m/s, and the below covers with oil to prevent particulate matter bounce, and the air sample can be dispersed into three routes when flowing through the impact surface, and the impurity that particle diameter is greater than 10 mu m can be separated this moment.
The upper air tap and the lower air tap are thermoplastic polyurethane elastomer rubber, can move up and down along with the transfer pipe, are pressed above the filter membrane during sampling, have good air tightness, and improve the trapping efficiency of the filter membrane to particulate matters.
The filter membrane is made of nano functional material, so that the trapping efficiency of the filter membrane to particulate matters can be improved, and the dissolving efficiency of heavy metals from the filter membrane can be improved.
The turntable is controlled by a servo motor to accurately convey the filter membrane to a designated station. At least two through holes are formed in the periphery of the disc surface of the rotary disc, the membrane support is arranged in each through hole, the turnover motor is fixed on one side of each through hole, the output end of the turnover motor is connected with the membrane support, and the filter membrane is placed on the membrane support; in the invention, eight through holes are uniformly formed in the disc surface of the turntable, and each through hole is correspondingly provided with a set of turnover motor and a film support. The 8 overturning motors control overturning of the 8 membrane holders. Before starting the sampling, 8 filters were placed on 8 membrane holders, and the filters were sampled sequentially by internal program control.
The cutter supporting mechanism is arranged on one side of the turntable and is used for supporting a cutter and controlling the upper air tap and the lower air tap to move to the position of the filter membrane, and the cutter supporting mechanism comprises a fixed plate 41, a left guide column 42, a right guide column 43, a first motor 44 and a second motor 45; the lower parts of the left guide post and the right guide post are respectively fixed on the bottom plate, one end of the fixing plate is fixedly connected with the lower part of the cutter, the other end of the fixing plate is fixedly connected with the upper parts of the left guide post and the right guide post respectively, the first motor is arranged on the fixing plate, and in order to improve the stability of the cutter, the fixing plate is two, and the left guide post, the right guide post and the cutter are sequentially fixed up and down.
The output of first motor has first lead screw 46, first lead screw and first lead screw cover cooperation, first lead screw cover is fixed in the one end of first sliding plate 47, first sliding plate pass through first sliding sleeve 48 with left guide post is connected, the other end of first sliding plate is connected with flexible pipe 21, flexible pipe inserts the lower part of cutterbar and with its sealing fit, the upper air cock is installed the lower part of flexible pipe. The first motor drives the first lead screw to rotate, and the lead screw drives the lead screw cover to reciprocate, and the lead screw cover drives first sliding plate simultaneously and removes, and first sliding plate slides on left guide post through first sliding sleeve, can drive left flexible pipe at the flexible removal of cutterbar lower part simultaneously, and this flexible pipe can insert in the cutterbar lower part and very closely with it between, adopts flexible material.
The connecting structure of the second motor is the same as that of the first motor, the second motor is fixed on the right guide post through a connecting plate 49, the output end of the second motor is provided with a second screw rod 50, the second screw rod is matched with a second screw rod sleeve, the second screw rod sleeve is fixed at one end of a second sliding plate 51, the second sliding plate is connected with the left guide post through a second sliding sleeve 52, the other end of the second sliding plate is connected with a fixed pipe 11, the upper part of the fixed pipe is connected with the lower air tap, and the lower part of the fixed pipe is communicated with a negative pressure pump; the upper air tap and the lower air tap are respectively positioned at the upper side and the lower side of the turntable and correspond to the through holes.
The two motors can drive the screw rod to rotate so as to control the up-and-down movement of the two air nozzles, the upper air nozzle moves downwards, and the lower air nozzle moves upwards until the two air nozzles clamp the membrane support, so that a closed space is formed, the air tightness is good, and the trapping efficiency of the filter membrane on particulate matters is improved. The filter membrane after gathering is driven by the carousel and rotates, delivers the appointed station with the filter membrane, and the upset of upset motor, the particulate matter on the filter membrane falls into the collection cup, and this process is automatic going on in airtight space, has shielded external interference, the effectual accuracy that improves the detection.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (4)
1. Seven station carousel formula heavy metal enrichment sampling device based on nano-functional material, its characterized in that: comprises a bottom plate, a cutter, a rotary table, a cutter supporting mechanism, a turnover motor, a membrane support, an upper air tap, a lower air tap and a filter membrane; the rotary table is driven to rotate by a servo motor arranged on the bottom plate, at least two through holes are formed in the periphery of the disc surface of the rotary table, the membrane support is arranged in each through hole, the turnover motor is fixed on one side of each through hole, the output end of the turnover motor is connected with the membrane support, and the filter membrane is placed on the membrane support; the cutter supporting mechanism is arranged on one side of the turntable and is used for supporting the cutter and controlling the upper air tap and the lower air tap to move to the position of the filter membrane; the cutter supporting mechanism comprises a fixed plate, a left guide column, a right guide column, a first motor and a second motor; the lower parts of the left guide post and the right guide post are respectively fixed on the bottom plate, one end of the fixing plate is fixedly connected with the lower part of the cutter, the other end of the fixing plate is fixedly connected with the upper parts of the left guide post and the right guide post respectively, the first motor is arranged on the fixing plate, the output end of the first motor is provided with a first lead screw, the first lead screw is matched with a first lead screw sleeve, the first lead screw sleeve is fixed at one end of a first sliding plate, the first sliding plate is connected with the left guide post through a first sliding sleeve, the other end of the first sliding plate is connected with a telescopic pipe, the telescopic pipe is inserted into the lower part of the cutter and is in sealing fit with the lower part of the cutter, and the upper air tap is arranged at the lower part of the telescopic pipe; the second motor is fixed on the right guide post through a connecting plate, the output end of the second motor is provided with a second screw rod, the second screw rod is matched with a second screw rod sleeve, the second screw rod sleeve is fixed at one end of a second sliding plate, the second sliding plate is connected with the left guide post through a second sliding sleeve, the other end of the second sliding plate is connected with a fixed pipe, the upper part of the fixed pipe is connected with the lower air tap, and the lower part of the fixed pipe is communicated with a negative pressure pump; the upper air tap and the lower air tap are respectively positioned at the upper side and the lower side of the turntable and correspond to the through holes.
2. The seven-station turntable type heavy metal enrichment sampling device based on nano functional materials according to claim 1, wherein the seven-station turntable type heavy metal enrichment sampling device is characterized in that: eight through holes are uniformly formed in the disc surface of the rotary disc, and each through hole is correspondingly provided with a set of overturning motor and a membrane support.
3. The seven-station turntable type heavy metal enrichment sampling device based on nano functional materials according to claim 1, wherein the seven-station turntable type heavy metal enrichment sampling device is characterized in that: the fixing plates are two, and the left guide post and the right guide post are sequentially fixed with the cutter up and down.
4. The seven-station turntable type heavy metal enrichment sampling device based on nano functional materials according to claim 1, wherein the seven-station turntable type heavy metal enrichment sampling device is characterized in that: the diameters of the upper air tap and the lower air tap are the same as the diameter of the filter membrane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964053.4A CN106370483B (en) | 2016-11-04 | 2016-11-04 | Seven-station turntable type heavy metal enrichment sampling device based on nano functional material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964053.4A CN106370483B (en) | 2016-11-04 | 2016-11-04 | Seven-station turntable type heavy metal enrichment sampling device based on nano functional material |
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| Publication Number | Publication Date |
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| CN106370483A CN106370483A (en) | 2017-02-01 |
| CN106370483B true CN106370483B (en) | 2023-10-03 |
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| CN201610964053.4A Active CN106370483B (en) | 2016-11-04 | 2016-11-04 | Seven-station turntable type heavy metal enrichment sampling device based on nano functional material |
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| CN114608903B (en) * | 2022-03-10 | 2023-01-31 | 安徽理工大学 | Intelligent dust collection and analysis device with filter membrane structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4029512A1 (en) * | 1990-09-18 | 1992-03-19 | Ego Elektro Blanc & Fischer | Medium heater esp. steam generator assembled from modules - has supply duct jointed by connection units each with heating chamber level regulator and filling chamber |
| RU2123679C1 (en) * | 1996-07-19 | 1998-12-20 | Украинский научно-технический центр "Сенсор" | Method of liquid sampling for analysis of admixtures in liquid and device intended for its realization |
| CN103558067A (en) * | 2013-11-14 | 2014-02-05 | 丹东百特仪器有限公司 | Automatic membrane changing device of multi-filter-membrane ambient air particle sampler |
| CN203785936U (en) * | 2014-01-06 | 2014-08-20 | 青岛恒远科技发展有限公司 | Membrane sampling device capable of moving in lifting mode |
| CN105510091A (en) * | 2016-01-15 | 2016-04-20 | 青岛绿蓝环保技术有限公司 | Multi-channel air particulate matter sampler flow calibration switching device |
| CN206177650U (en) * | 2016-11-04 | 2017-05-17 | 天津同阳科技发展有限公司 | Seven station carousel formula heavy metal accumulation sampling devices based on nano functional material |
-
2016
- 2016-11-04 CN CN201610964053.4A patent/CN106370483B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4029512A1 (en) * | 1990-09-18 | 1992-03-19 | Ego Elektro Blanc & Fischer | Medium heater esp. steam generator assembled from modules - has supply duct jointed by connection units each with heating chamber level regulator and filling chamber |
| RU2123679C1 (en) * | 1996-07-19 | 1998-12-20 | Украинский научно-технический центр "Сенсор" | Method of liquid sampling for analysis of admixtures in liquid and device intended for its realization |
| CN103558067A (en) * | 2013-11-14 | 2014-02-05 | 丹东百特仪器有限公司 | Automatic membrane changing device of multi-filter-membrane ambient air particle sampler |
| CN203785936U (en) * | 2014-01-06 | 2014-08-20 | 青岛恒远科技发展有限公司 | Membrane sampling device capable of moving in lifting mode |
| CN105510091A (en) * | 2016-01-15 | 2016-04-20 | 青岛绿蓝环保技术有限公司 | Multi-channel air particulate matter sampler flow calibration switching device |
| CN206177650U (en) * | 2016-11-04 | 2017-05-17 | 天津同阳科技发展有限公司 | Seven station carousel formula heavy metal accumulation sampling devices based on nano functional material |
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