CN102706699B - On-line water quality analyzing and sampling device and method - Google Patents
On-line water quality analyzing and sampling device and method Download PDFInfo
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- CN102706699B CN102706699B CN201210154436.7A CN201210154436A CN102706699B CN 102706699 B CN102706699 B CN 102706699B CN 201210154436 A CN201210154436 A CN 201210154436A CN 102706699 B CN102706699 B CN 102706699B
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Abstract
The invention discloses an on-line water quality analyzing and sampling device. The device comprises a water pump (such as a submersible pump and a self-sucking pump) positioned at the sampling end of the device, wherein the water pump is connected with a sample inlet; the sample inlet is connected with a throttling ejector; a sample sucking pipe is arranged at the downstream of the throttling ejector; a curve approaching to a right angle and/or an adjusting valve are/is arranged at the downstream of the sample sucking pipe; the throttling ejector is connected with a sample returning channel in a two-way selector valve; the sample sucking pipe is connected with a filter screen through a sample feeding channel of the two-way selector valve; the other end of the sample returning channel and a pipeline between the filter screen and the two-way selector valve forms a tee joint; and a sample storage pipe is arranged on the upper part of the filter screen, and a sampling port for sampling of a sampling pipe and an overflow port are formed in the sample storage pipe. The on-line water-quality analyzing and sampling device is simple in structure and free from maintenance for a long time; and by virtue of the design of high backlash and plugging removal of the device, the fine filter screen is kept to be smooth, and the sampling device is suitable for various poor water bodies.
Description
Technical field
The present invention relates to a kind of water quality on-line analysis sampler and sampling method that can be for a long time non-maintaining, for the online sampling of the water quality monitoring to surface water, process water and sewer, belong to field of Environment Protection.
Background technology
In water quality monitoring field, be generally that water to be measured water pump is carried to the collection of water sample, by sedimentation, filtration, except entering analytic system after the larger particles impurity in anhydrating.But existing sampling system is all more complicated, need to connect even vacuum pump of tap water, there is too many pump valve mechanism, easily cause fault.
Summary of the invention
Object of the present invention provides a kind of water quality on-line analysis sampler that can be for a long time non-maintaining simple in structure.
In order to realize object of the present invention, intend adopting following technical scheme:
One aspect of the present invention relates to a kind of water quality on-line analysis sampler, it comprises the water pump (as submersible pump, self-priming pump) that is positioned at sampling end, water pump is connected with injection port, injection port is connected with throttling thrower, the downstream of throttling thrower is provided with suction tube, and the downstream of suction tube is provided with the bend and/or the variable valve that approach right angle; Throttling thrower is connected with the counter sample passage in two-way selector valve, and suction tube is connected with screen pack by the sample intake passage of two-way selector valve, and the pipeline between the other end of counter sample passage and screen pack and two-way selector valve forms threeway; The top of screen pack is provided with stored one kind of tubes, is provided with sample tap and overflow vent for stopple coupon sampling in stored one kind of tubes.
In a preferred embodiment of the present invention, except being positioned at the water pump of sampling end, there is no other pump.
In a preferred embodiment of the present invention, the filter residue that filters gained when the direction of described strainer tube setting is sample introduction is positioned at the below of filter screen.
In a preferred embodiment of the present invention, the downstream that it is characterized in that described suction tube is provided with the bend and the variable valve that approach right angle.
In a preferred embodiment of the present invention, it is characterized in that described two-way selector valve is eccentric valve, the pipeline at least a portion in sample intake passage and counter sample passage is elastic pipeline.
In a preferred embodiment of the present invention, described eccentric valve comprises vavle shelf, eccentric wheel, motor, the resilient pipeline of tube wall.
In a preferred embodiment of the present invention, characterized by further comprising the programmable controller for controlling water pump and two-way selector valve.
The present invention also relates on the other hand the above-mentioned sampler of use and carries out water quality on-line analysis sampling method, it is characterized in that comprising the steps: that programmable controller control two-way selector valve sample intake passage is open-minded, start water pump, after overflowing a part of water sample in stored one kind of tubes, (also can reach after certain volume at water sample), water pump quits work, water sample rests on stored one kind of tubes, obtains stored one kind of tubes sample by sample tap.After water sample analysis finishes, the counter sample passage in programmable device control two-way selector valve is open-minded, again opens water pump, treats that in stored one kind of tubes, water sample is drained, and stops water pump.
In a preferred embodiment of the present invention, it is characterized in that when sample intake passage in two-way selector valve is different with counter sample passage opening.
Water quality on-line analysis sampler of the present invention, it enters the water pump of system except input water sample, does not re-use filtration that any electronic pump just can complete water sample effectively, cleans, retains, counter-flush.The recoil of device, except stifled design, makes filter screen keep unimpeded, makes sampling apparatus can be applicable to various severe water bodys.
Water quality on-line analysis sampler of the present invention, it can not use any external water purification and pressure gas source, simple in structure can be non-maintaining for a long time, complete reversed-cleaning filter net by water sample self, effectively complete water sample cleaning, retain, counter-flush.The powerful recoil of device, except stifled design, makes filter screen keep unimpeded, makes sampling apparatus can be applicable to various severe water bodys and allow very fine and closely woven filter screen remain unimpeded.
Brief description of the drawings:
Fig. 1: the duty of stored one kind of tubes sample introduction;
Fig. 2: the duty of stored one kind of tubes recoil.
Embodiment:
In order to further illustrate technical scheme of the present invention, by reference to the accompanying drawings 1 and 2, introduce water quality on-line analysis sampler of the present invention and using method thereof.
Water quality on-line analysis sampler of the present invention comprises water pump, throttling thrower, two-way selector valve, stored one kind of tubes, water pipe and manual modulation valve.
Two-way selector valve of the present invention comprises vavle shelf, resilient pipeline, eccentric wheel, motor.This valve is the both sides through basket in vavle shelf by elastic pipeline, eccentric wheel in the middle of two pipelines, driven by motor eccentric wheel 180 degree that often move in turn, a wherein elastic pipeline of compressing, completes opening or closing of two pipelines.Using two pipelines to pinch valve formula selector valve is to cause obstruction because can prevent in water sample that fibrous impurity is hung to stay.
Here said stored one kind of tubes, is made up of body, filter screen, sampling tubule, run-down pipe, and the order number of filter screen can be followed instrument will select water sample according to one's analysis.
The principle of work of system is as follows:
Programmable controller (can be the programmable controller of analytical instrument, also the programmable controller of system autogamy) allow the passage 2 of selector valve in logical, the state of passage 1 in closing, starts water pump, aqueous sample stream is crossed throttling thrower, because the preposition bend pipe of the adjusting of variable valve and variable valve changes current, cause slight hydraulic pressure, make the aqueous sample stream of seldom measuring to passage 2, after filter screen, flow to again stored one kind of tubes, overflow after a part of water sample, water pump stops, and water sample rests on stored one kind of tubes.Instrument is obtained stored one kind of tubes sample by sampling tubule.After water sample analysis finishes, controller instruction selector valve eccentric wheel Rotate 180 degree, passage 1 is in logical, and passage 2 is in closing.Water pump is opened again, aqueous sample stream is crossed the negative pressure of throttling thrower generation can aspirate the water sample in stored one kind of tubes rapidly, very fast because of water sample return velocity, be attached to impurity on filter screen and crossed throttling thrower by flow through passage 1, the aqueous sample stream of flowing through of cleaning down, finally flow to outlet.Take out after light when water sample in sample storage device, water pump stops.Be far smaller than because flow to the water sample flow velocity of filter screen through passage 2 flow velocity that in stored one kind of tubes, water sample recoils, so after each recoil is cleaned, filter screen is all very clean, therefore occur as long as no fault, this sampling system does not need maintenance, and filter screen is without manual cleaning.
When understanding, above-mentioned embodiment is only illustrative explanation, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. a water quality on-line analysis sampler, it comprises the water pump that is positioned at sampling end, and water pump is connected with injection port, and injection port is connected with throttling thrower, the downstream of throttling thrower is provided with suction tube, and the downstream of suction tube is provided with the bend and/or the variable valve that approach right angle; Throttling thrower is connected with the counter sample passage in two-way selector valve, and suction tube is connected with screen pack by the sample intake passage of two-way selector valve, and the pipeline between the other end of counter sample passage and screen pack and two-way selector valve forms threeway; The top of screen pack is provided with stored one kind of tubes, is provided with sample tap and overflow vent for stopple coupon sampling in stored one kind of tubes.
2. water quality on-line analysis sampler according to claim 1, except being positioned at the water pump of sampling end, does not have other pump.
3. water quality on-line analysis sampler according to claim 1, the filter residue that filters gained when the direction of described stored one kind of tubes setting is sample introduction is positioned at the below of filter screen.
4. water quality on-line analysis sampler according to claim 1, is characterized in that the downstream of described suction tube is provided with the bend and the variable valve that approach right angle.
5. water quality on-line analysis sampler according to claim 1, is characterized in that described two-way selector valve is eccentric valve, and the pipeline at least a portion in sample intake passage and counter sample passage is elastic pipeline.
6. water quality on-line analysis sampler according to claim 5, described eccentric valve comprises vavle shelf, eccentric wheel, motor, elastic pipeline.
7. according to the water quality on-line analysis sampler described in claim 1-6 any one, characterized by further comprising the programmable controller for controlling water pump and two-way selector valve.
8. a water quality on-line analysis sampling method, it is characterized in that right to use requires the sampler described in 7, comprise the steps: that programmable controller control two-way selector valve sample intake passage is open-minded, start water pump, after overflowing a part of water sample in stored one kind of tubes or water sample reach after certain volume, water pump quits work, water sample rests on stored one kind of tubes, obtain stored one kind of tubes sample by sample tap, after water sample analysis finishes, the counter sample passage in programmable controller control two-way selector valve is open-minded, again opens water pump, treat that in stored one kind of tubes, water sample is drained, stop water pump.
9. water quality on-line analysis sampling method according to claim 8, the powerful negative pressure that it is characterized in that utilizing throttling thrower to produce makes the large many flow velocity flushing-back filtering nets of flow velocity when filtering of water sample in stored one kind of tubes, to remove the impurity that may be attached on filter screen.
10. water quality on-line analysis sampling method according to claim 8, is characterized in that when sample intake passage in two-way selector valve is different with counter sample passage opening.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210154436.7A CN102706699B (en) | 2012-05-18 | 2012-05-18 | On-line water quality analyzing and sampling device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210154436.7A CN102706699B (en) | 2012-05-18 | 2012-05-18 | On-line water quality analyzing and sampling device and method |
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| Publication Number | Publication Date |
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| CN102706699A CN102706699A (en) | 2012-10-03 |
| CN102706699B true CN102706699B (en) | 2014-10-08 |
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| CN201210154436.7A Active CN102706699B (en) | 2012-05-18 | 2012-05-18 | On-line water quality analyzing and sampling device and method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877857B (en) * | 2014-03-10 | 2016-01-13 | 重庆瑞创仪器仪表有限公司 | A kind of ultrafiltration membrane filter device |
| CN104198749B (en) * | 2014-09-11 | 2015-09-09 | 天俱时工程科技集团有限公司 | A kind of installation method of the sampling line for on-line analysis instrument on-line real-time measuremen |
| CN105865845B (en) * | 2016-06-08 | 2018-07-10 | 太平洋水处理工程有限公司 | A kind of water process on-line period analysis system |
| CN108020510B (en) * | 2017-01-17 | 2020-06-30 | 深圳市科瑞德消毒用品科技开发有限公司 | Water quality monitoring device |
| CN113447318B (en) * | 2021-08-19 | 2022-08-19 | 潍坊水发供水集团有限公司 | Portable water body sampler and use method thereof |
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|---|---|---|---|---|
| US6076410A (en) * | 1998-08-31 | 2000-06-20 | Hanson Research Corporation | Liquid sample collector and liquid return apparatus |
| CN1303007A (en) * | 2001-02-27 | 2001-07-11 | 洪陵成 | Water sampling system |
| CN2494981Y (en) * | 2001-09-12 | 2002-06-12 | 江苏电分析仪器厂 | Water quality monitoring sampling system |
| CN2509575Y (en) * | 2001-11-15 | 2002-09-04 | 徐绕松 | Blockage-free and filtration-free liquid sampling device |
| CN2713459Y (en) * | 2004-05-28 | 2005-07-27 | 丁明光 | Self-cleaning fluid sampling filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57113347A (en) * | 1981-01-06 | 1982-07-14 | Toshiba Corp | Sampling apparatus for sample water |
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2012
- 2012-05-18 CN CN201210154436.7A patent/CN102706699B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6076410A (en) * | 1998-08-31 | 2000-06-20 | Hanson Research Corporation | Liquid sample collector and liquid return apparatus |
| CN1303007A (en) * | 2001-02-27 | 2001-07-11 | 洪陵成 | Water sampling system |
| CN2494981Y (en) * | 2001-09-12 | 2002-06-12 | 江苏电分析仪器厂 | Water quality monitoring sampling system |
| CN2509575Y (en) * | 2001-11-15 | 2002-09-04 | 徐绕松 | Blockage-free and filtration-free liquid sampling device |
| CN2713459Y (en) * | 2004-05-28 | 2005-07-27 | 丁明光 | Self-cleaning fluid sampling filter |
Non-Patent Citations (1)
| Title |
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| JP昭57-113347A 1982.07.14 |
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| CN102706699A (en) | 2012-10-03 |
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