CN104502151A - Quantitative clear liquid suction device for portable automatic liquid sampler - Google Patents
Quantitative clear liquid suction device for portable automatic liquid sampler Download PDFInfo
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- CN104502151A CN104502151A CN201410847840.1A CN201410847840A CN104502151A CN 104502151 A CN104502151 A CN 104502151A CN 201410847840 A CN201410847840 A CN 201410847840A CN 104502151 A CN104502151 A CN 104502151A
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Abstract
The invention relates to a quantitative clear liquid suction device for a portable automatic liquid sampler. The quantitative clear liquid suction device comprises a quantitative liquid suction flask, a liquid leak-proof middle flask and a vacuum pump, wherein the bottom end part of the quantitative liquid suction flask is connected with a liquid inlet pipe and a liquid outlet pipe, and the inlet end of the liquid inlet pipe is connected with a sampling pipe and a discarded liquid pipe in parallel; the inlet end of the sampling pipe is connected with a sampling head, and the liquid outlet pipe is provided with a liquid outlet one-way valve; the liquid leak-proof middle flask is connected with the vacuum pump through a vacuumizing pipeline, and is connected with a liquid suction pipeline through the quantitative liquid suction flask. The quantitative clear liquid suction device provided by the invention has the advantages of simple structure, easiness in operation, stability and reliability in use, and low cost; the clear liquid sampling is adopted, so that the pretreatment program is omitted.
Description
Technical field
The present invention relates to a kind of urban wastewater treatment equipment technical field, the present invention especially relates to a kind of quantitative aspirator of clear liquid of portable automatic liquid sampler.
Background technology
Along with the continuous deterioration of water environment, country is more and more higher to the science research input of water treatment, correlative study problem constantly increases, Test And Research Work amount is large, wherein the filtration pre-service of timing sampling and water sample occupies basic unit scientific research personnel a large amount of time, scientific research personnel can free by portable sampler from the sampling work of heavy repetition, but the various sampler of selling in the market, the overwhelming majority is imported product, fluid sample suction is completed by the peristaltic pump of conputer controlled, the rotating of conputer controlled peristaltic pump realizes pipeline cleaning, in cleaning process, current bubble impact power is large, and cannot clear liquid extraction be carried out.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide that a kind of structure is simple, reliable and stable, lightweight is littlely convenient for carrying, be easy to processing and manufacturing, the cheap quantitative aspirator of clear liquid being applicable to the portable automatic liquid sampler of small size sampling.
According to technical scheme provided by the invention, the quantitative aspirator of clear liquid of described portable automatic liquid sampler, it comprises liquid quantitative and takes out bottle and vacuum pump in the middle of bottle, liquid tight sealed engagement, the bottom of taking out bottle at liquid quantitative is connected with liquid inlet tube and liquid outlet tube, be connected in parallel to stopple coupon at the entrance point of liquid inlet tube and abandon liquid pipe, be connected with sampling head at the entrance point of stopple coupon, liquid outlet tube is provided with liquid outlet retaining valve; In the middle of described liquid tight sealed engagement, bottle is connected by vacuum lead with vacuum pump, and the middle bottle of liquid tight sealed engagement is taken out bottle with liquid quantitative and is connected by liquid suction pipe.
Described liquid quantitative is taken out bottle and is comprised sampling bottle cap and sampling bottle, and bottle cap is spun on sampling bottle; Cover at described sampling jar and be provided with safety air release valve and liquid pumping surfaces, liquid pumping surfaces is connected with described liquid suction pipe, be fixed with support at the sampling bottle cap lower surface of liquid pumping surfaces position, support is provided with float;
The bottle base plate of sampling bottle is fixed with baffle plate, the bottle base plate of the sampling bottle of baffle plate side is provided with liquid gravity flow export, liquid gravity flow export is connected with described liquid outlet tube, the bottle base plate of the sampling bottle of baffle plate opposite side is provided with inlet, inlet is connected with described liquid inlet tube.
Sampling pipe retaining valve is provided with in the junction of liquid inlet tube and stopple coupon, to be provided with the junction abandoning liquid pipe at liquid inlet tube and to abandon liquid line check valve, sampling pipe retaining valve is contrary with abandoning liquid line check valve direction, sampling pipe retaining valve with abandon liquid line check valve and be provided with UNICOM's mouth, and sampling pipe retaining valve is upwards open-minded, abandon liquid line check valve open-minded downwards.
Hollow fiber filter membrane or dull and stereotyped filter membrane is provided with in described sampling head.
Structure of the present invention is simple, is easy to operation; The present invention uses reliable and stable, and cost is low; The present invention adopts clear liquid to sample, and decreases preprocessor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation that in the present invention, liquid quantitative takes out bottle.
Fig. 3 is sampling pipe retaining valve and the structural representation abandoning liquid line check valve in the present invention.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
The quantitative aspirator of clear liquid of this portable automatic liquid sampler, it comprises liquid quantitative and takes out bottle 5 and vacuum pump 6 in the middle of bottle 1, liquid tight sealed engagement, the bottom of taking out bottle 1 at liquid quantitative is connected with liquid inlet tube 8 and liquid outlet tube 9, be connected in parallel to stopple coupon 10 at the entrance point of liquid inlet tube 8 and abandon liquid pipe 4, be connected with sampling head 3 at the entrance point of stopple coupon 10, liquid outlet tube 9 is provided with liquid outlet retaining valve 7; In the middle of described liquid tight sealed engagement, bottle 5 is connected by vacuum lead 11 with vacuum pump 6, and the middle bottle 5 of liquid tight sealed engagement is taken out bottle 1 with liquid quantitative and is connected by liquid suction pipe 12.
Described liquid quantitative is taken out bottle 1 and is comprised sampling bottle cap 1.1 and sampling bottle 1.2, and bottle cap 1.1 is spun on sampling bottle 1.2; Described sampling bottle cap 1.1 is provided with safety air release valve 1.11 and liquid pumping surfaces 1.14, liquid pumping surfaces 1.14 is connected with described liquid suction pipe 12, be fixed with support 1.12 at sampling bottle cap 1.1 lower surface of liquid pumping surfaces 1.14 position, support 1.12 is provided with float 1.13;
The bottle base plate of sampling bottle 1.2 is fixed with baffle plate 1.21, the bottle base plate of the sampling bottle 1.2 of baffle plate 1.21 side is provided with liquid gravity flow export 1.22, liquid gravity flow export 1.22 is connected with described liquid outlet tube 9, the bottle base plate of the sampling bottle 1.2 of baffle plate 1.21 opposite side is provided with inlet 1.23, inlet 1.23 is connected with described liquid inlet tube 8.
Sampling pipe retaining valve 2.1 is provided with at liquid inlet tube 8 and the junction of stopple coupon 10, to be provided with the junction abandoning liquid pipe 4 at liquid inlet tube 8 and to abandon liquid line check valve 2.2, sampling pipe retaining valve 2.1 is contrary with abandoning liquid line check valve 2.2 direction, sampling pipe retaining valve 2.1 with abandon liquid line check valve 2.2 and be provided with UNICOM's mouth, and sampling pipe retaining valve 2.1 is upwards open-minded, abandon liquid line check valve 2.2 open-minded downwards.
Hollow fiber filter membrane or dull and stereotyped filter membrane is provided with in described sampling head 3.
The present invention is in the self-cleaning stage, vacuum pump 6 starts, take out in bottle 1 at liquid quantitative and cause negative pressure, liquid outlet retaining valve 7 is closed, liquid upwards flows through sampling pipe retaining valve 2.1, liquid enters liquid quantitative from sampling head 3 mistake sampling pipe retaining valve 2.1 and takes out bottle 1, this stage vacuum pump 6 stops when liquid does not cover baffle plate 1.21, and the liquid in the residual sampling head 3 of guarantee is all by sampling pipe retaining valve 2.1, after vacuum pump 6 stops, liquid flows downward through abandoning liquid line check valve 2.2, abandon sampling pipe retaining valve 2.1 when liquid line check valve 2.2 is opened to close, liquid flows out from the liquid mouth of abandoning abandoning liquid pipe 4, abandon liquid enter reactor according to testing requirements or directly discharge, determine self-cleaning number of times as required.
During sample phase, vacuum pump 6 is opened, take out in bottle 1 at liquid quantitative and cause negative pressure, liquid flows out from liquid pumping surfaces 1.14, liquid outlet retaining valve 7 is closed, liquid enters liquid quantitative from sampling head 3 mistake sampling pipe retaining valve 2.1 and takes out bottle 1, liquid covers baffle plate 1.21, liquid level rises, float 1.13 floats because of lower than fluid density, move closer to the liquid pumping surfaces 1.14 of liquid quantitative suction bottle cap 1.1, due to the negative pressure near liquid pumping surfaces 1.14, liquid pumping surfaces 1.14 blocks by the conical head of float 1.13, vacuum pump 6 cannot be taken out in bottle 1 at liquid quantitative and aspirate, vacuum pump 6 is out of service by Timer Controlling after running certain hour, liquid quantitative is taken out negative pressure in bottle 1 and is disappeared, liquid outlet retaining valve 7 is opened, the liquid crossing baffle plate 1.21 flows out from liquid outlet retaining valve 7, do not cross the liquid backflow of baffle plate 1.21 to abandoning liquid line check valve 2.2, sampling pipe retaining valve 2.1 is closed, abandon liquid line check valve 2.2 to open, discarded liquid flows out from the liquid mouth of abandoning abandoning liquid pipe 4.
When liquid quantitative take out bottle 1 liquid quantitative suction bottle cap 1.1 in float 1.13 normally cannot block liquid pumping surfaces 1.14 due to pollutant time, liquid enters liquid suction pipe 12 by liquid pumping surfaces 1.14, containing sponge in liquid suction pipe 12, resistance increases when liquid enters, the safety air release valve 1.11 of liquid tight sealed engagement is an anti-clogging air hole structure, be in gas leakage state always, when the tracheae sponge obstruction safety air release valve 1.11 of suction pump, rate of air sucked in required reduces, and safety air release valve 1.11 air leakage amount of liquid tight sealed engagement is certain, now can destroy liquid quantitative and take out negative pressure in bottle 1, prevent from being liquid continuously sucked into bottle 5 in the middle of liquid tight sealed engagement, even vacuum pump 6, vacuum pump 6 is caused to damage.
Claims (4)
1. the quantitative aspirator of the clear liquid of a portable automatic liquid sampler, it is characterized in that: it comprises liquid quantitative and takes out bottle (5) and vacuum pump (6) in the middle of bottle (1), liquid tight sealed engagement, the bottom of taking out bottle (1) at liquid quantitative is connected with liquid inlet tube (8) and liquid outlet tube (9), be connected in parallel to stopple coupon (10) at the entrance point of liquid inlet tube (8) and abandon liquid pipe (4), be connected with sampling head (3) at the entrance point of stopple coupon (10), liquid outlet tube (9) is provided with liquid outlet retaining valve (7); In the middle of described liquid tight sealed engagement, bottle (5) is connected by vacuum lead (11) with vacuum pump (6), and the middle bottle (5) of liquid tight sealed engagement is taken out bottle (1) with liquid quantitative and is connected by liquid suction pipe (12).
2. the quantitative aspirator of clear liquid of portable automatic liquid sampler as claimed in claim 1, is characterized in that: described liquid quantitative is taken out bottle (1) and comprised sampling bottle cap (1.1) and sampling bottle (1.2), and bottle cap (1.1) is spun in sampling bottle (1.2); Described sampling bottle cap (1.1) is provided with safety air release valve (1.11) and liquid pumping surfaces (1.14), liquid pumping surfaces (1.14) is connected with described liquid suction pipe (12), be fixed with support (1.12) at sampling bottle cap (1.1) lower surface of liquid pumping surfaces (1.14) position, support (1.12) is provided with float (1.13);
The bottle base plate of sampling bottle (1.2) is fixed with baffle plate (1.21), the bottle base plate of the sampling bottle (1.2) of baffle plate (1.21) side is provided with liquid gravity flow export (1.22), liquid gravity flow export (1.22) is connected with described liquid outlet tube (9), the bottle base plate of the sampling bottle (1.2) of baffle plate (1.21) opposite side is provided with inlet (1.23), inlet (1.23) is connected with described liquid inlet tube (8).
3. the quantitative aspirator of clear liquid of portable automatic liquid sampler as claimed in claim 1, it is characterized in that: be provided with sampling pipe retaining valve (2.1) at liquid inlet tube (8) and the junction of stopple coupon (10), to be provided with the junction abandoning liquid pipe (4) at liquid inlet tube (8) and to abandon liquid line check valve (2.2), sampling pipe retaining valve (2.1) is contrary with abandoning liquid line check valve (2.2) direction, sampling pipe retaining valve (2.1) with abandon liquid line check valve (2.2) and be provided with UNICOM's mouth, and sampling pipe retaining valve (2.1) is upwards open-minded, abandon liquid line check valve (2.2) open-minded downwards.
4. the quantitative aspirator of clear liquid of portable automatic liquid sampler as claimed in claim 1, is characterized in that: in described sampling head (3), be provided with hollow fiber filter membrane or dull and stereotyped filter membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410847840.1A CN104502151B (en) | 2014-12-31 | 2014-12-31 | The quantitative aspirator of clear liquid of portable automatic liquid sampler |
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| CN201410847840.1A CN104502151B (en) | 2014-12-31 | 2014-12-31 | The quantitative aspirator of clear liquid of portable automatic liquid sampler |
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| CN104502151A true CN104502151A (en) | 2015-04-08 |
| CN104502151B CN104502151B (en) | 2017-01-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706371A (en) * | 2016-12-30 | 2017-05-24 | 深圳市环境监测中心站 | Water quality detection and sampling system |
| CN107300485A (en) * | 2017-08-28 | 2017-10-27 | 杭州春来科技有限公司 | Sample liquid definite value sampling apparatus and method |
| CN108295913A (en) * | 2018-04-08 | 2018-07-20 | 东莞东阳光科研发有限公司 | A kind of micro-fluidic chip |
| CN110608922A (en) * | 2019-09-10 | 2019-12-24 | 北京建筑大学 | Liquid sample vacuum collecting device and control method |
| CN112255051A (en) * | 2020-11-17 | 2021-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Ore pulp sampling device of open type pipeline |
| CN113514281A (en) * | 2021-04-26 | 2021-10-19 | 上海化工院检测有限公司 | Sampling device for residual liquid in barrel |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706371A (en) * | 2016-12-30 | 2017-05-24 | 深圳市环境监测中心站 | Water quality detection and sampling system |
| CN106706371B (en) * | 2016-12-30 | 2019-11-26 | 深圳市环境监测中心站 | Water quality detection sampling system |
| CN107300485A (en) * | 2017-08-28 | 2017-10-27 | 杭州春来科技有限公司 | Sample liquid definite value sampling apparatus and method |
| CN108295913A (en) * | 2018-04-08 | 2018-07-20 | 东莞东阳光科研发有限公司 | A kind of micro-fluidic chip |
| CN108295913B (en) * | 2018-04-08 | 2024-04-05 | 东莞东阳光医疗智能器件研发有限公司 | Microfluidic chip |
| CN110608922A (en) * | 2019-09-10 | 2019-12-24 | 北京建筑大学 | Liquid sample vacuum collecting device and control method |
| CN112255051A (en) * | 2020-11-17 | 2021-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Ore pulp sampling device of open type pipeline |
| CN113514281A (en) * | 2021-04-26 | 2021-10-19 | 上海化工院检测有限公司 | Sampling device for residual liquid in barrel |
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| CN104502151B (en) | 2017-01-04 |
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