CN103837391B - Water quality monitoring water sample preprocessing apparatus - Google Patents

Water quality monitoring water sample preprocessing apparatus Download PDF

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Publication number
CN103837391B
CN103837391B CN201410114304.0A CN201410114304A CN103837391B CN 103837391 B CN103837391 B CN 103837391B CN 201410114304 A CN201410114304 A CN 201410114304A CN 103837391 B CN103837391 B CN 103837391B
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water sample
water
pipe
basin
settling basin
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CN103837391A (en
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马志明
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马志明
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Abstract

The invention provides a kind of water quality monitoring water sample preprocessing apparatus, comprising: back flush water collecting basin, water sample settling basin, with the water sample water inlet pipe communicated bottom back flush water collecting basin, the air hose be connected with water sample settling basin top, with the discharge pipeline be connected that communicates bottom water sample settling basin, to communicate with discharge pipeline run-down pipe and overflow air pipe, the sampling pipe that communicates with water sample settling basin.The present invention has that reasonable in design, small volume, structure are simple, cost is lower, without the need to special cleaning water source, without the need to all kinds of valve, automatically can complete the advantage of water sample filtration, device flushing, filter screen recoil, water sample precipitation, sampling analysis, spoil disposal all processes.

Description

Water quality monitoring water sample preprocessing apparatus
Technical field
The present invention relates to a kind of water sample preprocessing apparatus, particularly relate to a kind of water sample preprocessing apparatus for water quality monitoring.
Background technology
In water quality monitoring industry, the method such as photometer measuring method, spectroscopic methodology be used accurately to measure the water-quality guideline such as COD, ammonia nitrogen.
If all kinds of high suspended matter sewage can not carry out effective pre-service in early stage, water sample to be measured is made to meet the requirement of said determination method to Suspended Substance in Water Sample content, suspension in water sample will produce tremendous influence to the accuracy measured, and even causes measurement to carry out.
Therefore the pretreated effect of water sample become water quality monitoring equipment can the key factor of precise and stable measurement.
Water quality of the prior art prison system water sample preprocessing apparatus ubiquity volume is comparatively large, complicated, the easy blocking of equipment, cleaning difficulty, need special cleaning water source, difficulty that maintenance workload is large.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of water quality monitoring water sample preprocessing apparatus is provided, it is reasonable in design, small volume, structure simple, cost is lower, without the need to special cleaning water source, without the need to all kinds of valve, automatically can complete water sample filtration, device flushing, filter screen recoil, water sample precipitation, sampling analysis, water sample sludge from sedimentation tank all processes.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of water quality monitoring water sample preprocessing apparatus, is characterized in that: comprise back flush water collecting basin, with the water sample water inlet pipe be communicated with bottom back flush water collecting basin, the water sample settling basin that is communicated with back flush water collecting basin top and air hose, with the discharge pipeline be communicated with bottom water sample settling basin, to be communicated with discharge pipeline run-down pipe and overflow air pipe, with the sampling pipe be communicated with in the middle part of water sample settling basin, the chemical feed pipe, the liquid level sensor be arranged on air hose that are communicated with water sample settling basin top.
Above-mentioned water quality monitoring water sample preprocessing apparatus, is characterized in that: described water sample settling basin is communicated with discharge pipeline, and form " U " type structure, both connecting portions are lower than described sampling pipe.
Above-mentioned water quality monitoring water sample preprocessing apparatus, is characterized in that: be communicated with water sample water inlet pipe bottom described back flush water collecting basin, or adopts same pipeline to form.
Above-mentioned water quality monitoring water sample preprocessing apparatus, is characterized in that: described back flush water collecting basin top and described water sample settling basin and air line, three forms a trifid structure jointly, and its connecting portion is higher than described sampling pipe.
Above-mentioned water quality monitoring water sample preprocessing apparatus, is characterized in that: described discharge pipeline, run-down pipe, overflow air pipe are communicated with, and a common composition trifid structure, the connecting portion of three is higher than described sampling pipe.
Above-mentioned water quality monitoring water sample preprocessing apparatus, alternatively, liquid level sensor is installed by described air duct.
Above-mentioned water quality monitoring water sample preprocessing apparatus, alternatively, chemical feed pipe is arranged at described water sample settling basin top.
The present invention has the following advantages with prior art ratio.
Reasonable in design, structure is simple, cost is lower.
Without the need to special cleaning water source, make it require to reduce to erecting stage, adaptability improves, and is beneficial to popularization.
Without the need to all kinds of valve, overcome various valve blockage in existing water sample preconditioning technique, damage the fault caused, can accomplish non-maintaining.
Can full-closed structure be made, the smell of sewage is enclosed in device inside, improve working environment.
As long as control the working time of sampling water pump (not shown), the present invention can complete that water sample filters, device rinses automatically, filter screen recoil, water sample precipitation, water sample sludge from sedimentation tank all processes, stable, reliability is high.
Scouring media is monitoring water sample, avoids wash-down water and remains in device thus the diluting effect produced water sample, improve the precision of monitoring.
Accompanying drawing explanation
Fig. 1 is the structure diagram of the water quality monitoring water sample preprocessing apparatus according to the embodiment of the present invention 1.
Fig. 2 is the structure diagram of the water quality monitoring water sample preprocessing apparatus according to the embodiment of the present invention 2.
Fig. 3 is the structure diagram of the water quality monitoring water sample preprocessing apparatus according to the embodiment of the present invention 3.
Fig. 4 is the workflow diagram of water quality monitoring water sample preprocessing apparatus of the present invention.
Description of reference numerals.
The connecting portion of 1-back flush water collecting basin, 2-water sample settling basin, 3-water sample water inlet pipe, 4-air hose, 5-discharge pipeline, 6-run-down pipe, 7-overflow air pipe, 8-sampling pipe, 9-chemical feed pipe, 10-liquid level sensor, a-water sample settling basin and discharge pipeline connecting portion, b-back flush water collecting basin, settling basin, air hose three, c-discharge pipeline, run-down pipe, the connecting portion of overflow air pipe three, 11-dividing plate, 12-connecting pipe.
Embodiment
Fig. 1-4 and following description describe Alternate embodiments of the present invention and how instruction those skilled in the art implement and reproduce the present invention.In order to instruct technical solution of the present invention, some conventional aspects are simplified.
Embodiment 1.
Fig. 1 schematically illustrates structure diagram of the present invention, as shown in Figure 1, the water sample preprocessing apparatus of described water quality monitoring comprises: back flush water collecting basin, water sample settling basin, water sample water inlet pipe, air hose, discharge pipeline, run-down pipe, overflow air pipe, sampling pipe, chemical feed pipe, liquid level sensor, dividing plate.
Container is divided into two regions by dividing plate, and the left side is back flush water collecting basin, and the right is water sample settling basin.
Described back flush water collecting basin top and water sample settling basin and air line, three forms a trifid structure jointly, and the connecting portion " b " of three is higher than described sampling pipe.
Be communicated with water sample water inlet pipe bottom described back flush water collecting basin.
Described water sample settling basin is communicated with discharge pipeline, and composition " U " type structure, both connecting portions " a " are lower than described sampling pipe.Described discharge pipeline, run-down pipe, overflow air pipe three are communicated with, and a common composition trifid structure, the connecting portion " c " of three is higher than described sampling pipe.
Alternatively, liquid level sensor installed by air duct.
Alternatively, chemical feed pipe is arranged at described water sample settling basin top.
Fig. 4 is the workflow diagram of water quality monitoring water sample preprocessing apparatus of the present invention, and be also the course of work of above-mentioned water quality monitoring water sample preprocessing apparatus, as shown in Figure 4, the pre-service of described water quality monitoring water sample preprocessing apparatus to water sample comprises the following steps.
(A1) water pump (water pump and filter screen not shown) starts and starts upper water, and water sample enters water quality monitoring water sample preprocessing apparatus through filter screen, water pump, water sample water inlet pipe, period filter screen water sample is filtered.
(A2) water pump continues upper water, and water sample constantly enters back flush water collecting basin to the water filling of back flush water collecting basin by water inlet pipe.
(A3) water pump continues upper water, when back flush water collecting basin water level exceedes dividing plate upper end, water sample is crossed dividing plate and is entered water sample settling basin, along with water sample settling basin liquid level rising base pressure increases, when the pressure of water sample settling basin side, " a " left side, place is greater than the pressure of discharge pipeline side, the right, discharged by run-down pipe after accumulation water sample in water sample settling basin and sediment enter run-down pipe by discharge pipeline, complete water sample sludge from sedimentation tank process.
(A4) water pump continues upper water, and water sample is constantly by flowing out after water sample water inlet pipe, back flush water collecting basin, water sample settling basin, discharge pipeline, run-down pipe, and this process is rinsed this device each several part.
(B1) Pump Failure, water sample in back flush water collecting basin is back to former sampling place by water sample water inlet pipe, water pump, filter screen under gravity, water sample in the process in filter screen is reversed flow relative to former upper water process, filter screen is recoiled, makes because in first front upper water process, the foreign material be attached on filter screen come off.
In (B1) filter screen back flushing process, air enters water sample settling basin and back flush water collecting basin by air hose, destroys the syphonic effect formed by back flush water collecting basin and water sample settling basin, avoids the water sample in water sample settling basin to be sucked out through back flush water collecting basin.
(C1) after water pump stops upper water, water sample in water sample settling basin due to linker effect will continue through discharge pipeline, run-down pipe discharge, until after water sample height in water sample settling basin and " c " place height level, the pressure of water sample settling basin side, " a " left side and the pressure of discharge pipeline side, the right reach balance, and water sample stops flowing.
The remaining water sample of run-down pipe relies on gravity Natural excrement, and now overflow air pipe can make air enter run-down pipe, the syphonic effect that destruction discharge pipeline and run-down pipe are formed, and avoids the water sample of water sample settling basin to be sucked out through discharge pipeline.
(C2) chemical feed pipe is installed alternatively in water sample settling basin top, can add medicament needed for the pre-service such as stabilizing agent, flocculating agent.
(C3) in water sample settling basin, water sample leaves standstill, and the suspension in water sample is after a while deposited to bottom water sample settling basin, and the water sample suspension content in water sample settling basin reduces the detection requirement reaching monitoring device.
(C4) water sample monitoring device is monitored from water sample preprocessing apparatus water sample pipe extraction water sample, and described sampling monitoring process is the state of the art, does not repeat them here.
(C5) water quality monitoring water sample preprocessing apparatus is idle, and the residue water sample after monitoring accumulates in water sample settling basin, waits for the carrying out of next time monitoring, and monitoring next time repeats the above-mentioned course of work after starting again.
On water pump during water, air hose likely enters water sample, the maximum height of water sample when the height of air hose should be greater than water on water pump under normal circumstances.
Air hose installs liquid level sensor alternatively, the maximum height of water sample when setting height(from bottom) is greater than water on water pump under normal circumstances.
Under extreme case, discharge pipeline blocks, on water pump, in water process, water sample settling basin pressure sharply increases, water sample liquid level rises will arrive liquid level sensor height, now liquid level sensor issues a signal to opertaing device (not shown), stop water pump operation after opertaing device perception and send alerting signal, above perception liquid level warning process is the state of the art, does not repeat them here.
The time of filter screen recoil, determined by the volume of back flush water collecting basin and the speed of water-break.
Filter screen back washing strength is generally determined by the vertical height of filter screen to back flush water collecting basin, in order to increase filter screen back washing strength, can common one-way water pump be changed into two way water pump, power water-break is relied on to force back flush, described power-forced backwash mode is the state of the art, does not repeat them here.
Air hose, overflow air pipe can be upwards uncovered, and also can receive outdoor with the gaseous contamination indoor environment avoiding water sample to diffuse out, in the present embodiment, air hose and overflow air manifold are received near sampled point aerial after closing.
Embodiment 2.
Fig. 2 schematically illustrates the structure diagram of the rear Split type structure of another distortion of the present invention, as shown in Figure 2, back flush water collecting basin and water sample settling basin are Split type structure compared with embodiment 1, without the need to dividing plate, back flush water collecting basin top is communicated with by connecting pipe with water sample settling basin, the course of work is similar to embodiment 1, does not repeat them here.
Because back flush water collecting basin top communicates with water sample settling basin top, so air hose both can be arranged on water sample settling basin, also can arrange on back flush water collecting basin, effect was identical.
Embodiment 3.
Fig. 3 simplifies the structure diagram of structure after schematically illustrating another kind distortion of the present invention, back flush water collecting basin tube cavity is as pond body and use same pipeline with water sample water inlet pipe, top is for forming back flush water collecting basin, water sample water inlet pipe is formed at bottom, and the cavity that water sample settling basin utilizes pipeline to be formed is as pond body.
The present embodiment is applicable to observation process needs the little filter screen of water sample amount to recoil less demanding occasion.
The course of work is similar to front two embodiments, does not repeat them here.
The above is only preferred embodiment of the present invention, not imposes any restrictions the present invention, every according to the technology of the present invention in fact embodiment do any simple modification, change and equivalent structure change, all still belong to the protection domain of technical solution of the present invention.

Claims (7)

1. a water quality monitoring water sample preprocessing apparatus, described device comprises: back flush water collecting basin (1), the water sample settling basin (2) that is communicated with back flush water collecting basin (1) and air hose (4), the water sample inlet channel (3) is communicated with back flush water collecting basin (1) bottom, with the discharge pipeline (5) be communicated with bottom water sample settling basin (2), the run-down pipe (6) that is communicated with discharge pipeline (5) and overflow air pipe (7), with the sampling pipe (8) be connected in the middle part of water sample settling basin (2).
2. water sample preprocessing apparatus according to claim 1, described back flush water collecting basin (1) bottom is communicated with water sample water inlet pipe (3), or same pipeline of sampling is formed.
3. water sample preprocessing apparatus according to claim 1, described water sample settling basin (2) bottom is communicated with discharge pipeline (5) one end, and form " U " type structure, described water sample settling basin and discharge pipeline connecting portion (a) are lower than described sampling pipe (8).
4. water sample preprocessing apparatus according to claim 1, described back flush water collecting basin (1) top is communicated with air hose (4) with described water sample settling basin (2).
5. water sample preprocessing apparatus according to claim 4, described back flush water collecting basin (1), water sample settling basin (2), air hose (4) be a composition trifid structure jointly, and the connecting portion (b) of described back flush water collecting basin, water sample settling basin, air hose three is higher than described sampling pipe (8).
6. water sample preprocessing apparatus according to claim 1, described discharge pipeline (5), run-down pipe (6), overflow air pipe (7) are communicated with.
7. water sample preprocessing apparatus according to claim 6, described discharge pipeline (5), run-down pipe (6), overflow air pipe (7) be a composition trifid structure jointly, and the connecting portion (c) of described discharge pipeline, run-down pipe, overflow air pipe three is higher than described sampling pipe (8).
CN201410114304.0A 2014-03-26 2014-03-26 Water quality monitoring water sample preprocessing apparatus Active CN103837391B (en)

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Application Number Priority Date Filing Date Title
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CN108663259A (en) * 2017-03-30 2018-10-16 上海捷辰仪器有限公司 A kind of water quality nutritive salt in-line analyzer pretreating device

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CN101503235B (en) * 2008-12-25 2011-03-02 滨海环保装备(天津)有限公司 Seawater desalination pretreatment diversion system and working method thereof
CN101974933B (en) * 2010-07-28 2011-12-07 苏州顶裕节能设备有限公司 Overflow siphon automatic blow-down device
CN201914984U (en) * 2010-11-25 2011-08-03 广州益方田园环保科技开发有限公司 Integrated sewage treatment and sedimentation combination device
CN202810928U (en) * 2012-08-06 2013-03-20 煤炭工业太原设计研究院 Negative pressure U type water collecting and draining device of ventilation air methane delivery pipe
CN203264456U (en) * 2013-05-19 2013-11-06 鞍钢集团矿业公司 Wet sticking-piece type cyclone dust collector
CN103332806A (en) * 2013-06-24 2013-10-02 宜兴市全洲水工设备厂 Automatic water processing system
CN203745264U (en) * 2014-03-26 2014-07-30 马志明 Water sample pretreatment device for water quality monitoring

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