CN103278358A - Prepositioning preprocessor of online water quality analyzer - Google Patents
Prepositioning preprocessor of online water quality analyzer Download PDFInfo
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- CN103278358A CN103278358A CN2013101720414A CN201310172041A CN103278358A CN 103278358 A CN103278358 A CN 103278358A CN 2013101720414 A CN2013101720414 A CN 2013101720414A CN 201310172041 A CN201310172041 A CN 201310172041A CN 103278358 A CN103278358 A CN 103278358A
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- pretreater
- water quality
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Abstract
The invention relates to a prepositioning preprocessor of an online water quality analyzer. The preprocessor comprises a water inlet pipeline, a water outlet pipeline and a filter. The preprocessor is characterized in that an ejector is connected between the water inlet pipeline and the water outlet pipeline; the bottom of the filter is connected in parallel with a sample-injection pinch valve and a back-flushing pinch valve through a pipeline; a sample-injection pinch valve pipeline is connected with the water inlet pipeline; a back-flushing pinch valve pipeline is connected with a suction chamber of the ejector; a filter overflow pipeline is arranged at the filter; a filtering cup is arranged in the filter; and an analyzer water taking pipe is contained in the filtering cup. Under the condition that tap water does not exist, the back flushing to the filter and the pipelines of the preprocessor is realized, so that the long-time use of the preprocessor and the filter are ensured. Therefore, the maintenance cost and the maintenance workload of equipment are lowered.
Description
Technical field
The present invention relates to the water quality online analyzer device in a kind of environmental monitoring, relate in particular to the preposition pretreater of a kind of water quality online analyzer.
Background technology
The preposition pretreater of water quality online analyzer device is a kind of pretreatment unit that has secondary filter device and recoil self-stripping unit.Be mainly used in and need carry out in the sampling occasion of secondary filter granule foreign in the water sample, preprocessing process is all finished by PLC control.Water sample is sampled by the outside water pump of pretreater control; Tap water is used for finishing the self-cleaning of filtration unit and pipeline, guarantees the long-term use of pretreater and filtration unit, reduces maintenance.
There are U.S.'s Hash, Dingli Environmental Protection Science and Technology Co. Ltd., Hangzhou, Wuhan Kang Sheng automatic control Engineering Co., Ltd, Hangzhou optically focused science and technology, day island proper Tianjin company in the manufacturer that existing market is produced above-mentioned preposition pretreater product.In the existing similar products, one of pretreater two kinds of methods commonly used realize preposition preprocessing function.First method, device as shown in Figure 1, sampling water is delivered to pretreater through entering water electromagnetic valve 1 with water sample by the sampling water pump, during water sample process filtrator 2, larger particles and sediment deposition thing are filtered by it, and subsequently, water sample is sent to analytical instrument analysis through COD sampling solenoid valve 3.Tap water is through 2# ball valve 4, and recoil solenoid valve 5 is finished the road self-cleaning of laggard line pipe in sampling.Automatically close earlier entering water electromagnetic valve, sampling solenoid valve, open the recoil solenoid valve, cleaning process begins, through cleaning process end after a while.
Second method device, analytical instrument start the sampling water pump, are entered by water inlet, and filter screen is impacted in water inlet, and a water inlet part enters stirring pool by filter screen, and a part flows out by overflow vent, and this moment, the freeing port pinch valve was closed.When stirring pool water arrived certain position, the water intaking pump was out of service.Stirrer work, after stirring was finished, analytical instrument extracted water sample from stirring pool, sends into instrument analysis.After analysis was finished, the freeing port pinch valve was opened, and discharged unnecessary water sample; After discharging unnecessary water sample, open tap water, tap water washes filter screen and stirring pool.
Said apparatus can't be realized by tap water realization backwashing function because the present major part in field of employment does not have tap water.
Summary of the invention
Fundamental purpose of the present invention is, overcome the defective that the preposition pretreater of existing water quality online analyzer exists, and the preposition pretreater of the water quality online analyzer that a kind of new structure is provided, solution is in the technical matters that does not have to realize under the situation of tap water backwashing function, guarantee the normal operation of preposition pretreater, reduce maintenance of equipment cost and maintenance workload simultaneously, thereby be suitable for practicality more, and have the value on the industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.
The preposition pretreater of a kind of water quality online analyzer according to the present invention's proposition, comprise inlet and outlet pipe and filtrator, it is characterized in that, connect ejector between described inlet pipeline and the outlet pipeline, described filter bottom by pipeline be connected in parallel the sample introduction pinch valve and the recoil pinch valve, described sample introduction pinch valve pipeline connects inlet pipeline, and described recoil pinch valve pipeline connects the suction chamber of ejector.
Ejector normally utilizes jet turbulent fluctuation diffusion, transmits fluid machinery and the mix reaction equipment of energy and quality.It is known to those skilled in the art that ejector generally includes nozzle, suction chamber and diffuser casing.Yet in the present invention, ejector is the nucleus equipment of realizing backwashing function in the preposition pretreater of the present invention.
The preposition pretreater of aforesaid water quality online analyzer is provided with filter bowl in the described filtrator, and stirrer is set in the filter bowl.
The preposition pretreater of aforesaid water quality online analyzer, described filtrator arranges the filtrator overflow passage.
The preposition pretreater of aforesaid water quality online analyzer, described inlet pipeline and described ejector connection are provided with ball valve.
The preposition pretreater of aforesaid water quality online analyzer comprises the in-line analyzer intake pipe in the described filter bowl.
The preposition pretreater of aforesaid water quality online analyzer, described in-line analyzer intake pipe lower end is provided with the ceramic filter head.
By technique scheme, the preposition pretreater of water quality online analyzer of the present invention has following advantage at least:
1, do not having under the condition of tap water, realizing that filtrator, the pipeline to pretreater carried out back flush, guaranteeing the long-term use of pretreater and filtrator, reducing the maintenance of equipment.
2, adopt filter bowl to filter, increased screen area, prolonged maintenance period, reduced maintenance workload.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the structural representation of the preposition pretreater of a kind of water quality online analyzer in the prior art.
Fig. 2 is the structural representation of the preposition pretreater of water quality online analyzer of the present invention.
Fig. 3 is the ejector structural representation.
Fig. 4 is sample introduction process flow synoptic diagram.
Fig. 5 is the backwash process schematic flow sheet.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to the specific embodiment of the present invention describe in detail as after.
The preposition pretreater of water quality online analyzer as shown in Figure 2, be provided with filtrator 107, filtrator 107 bottom connecting tubes are divided into two-way in parallel, the left side is provided with sample introduction pinch valve 113, the right side is provided with recoil pinch valve 105, and sample introduction pinch valve 113 is connected with inlet pipeline 101, and inlet pipeline 101 is with after ejector 103 is connected, ejector 103 connects outlet pipeline 104, and inlet pipeline 101 is provided with ball valve 102 with ejector 103 connections; Recoil pinch valve 105 connects the suction chamber of ejector 103.
The course of work is divided three ones:
1, sample introduction process;
2, stirring, analytical instrument sampling process;
3, backwash process.
The sample introduction process: as shown in Figure 4, analytical instrument starts external water pump, opens sample introduction pinch valve 113, turn-offs recoil pinch valve 105, and the water sample that the scene need be analyzed is delivered to preposition pretreater inlet pipeline 101.Water sample is leaded up to ball valve 102, ejector 103 by outlet pipeline 104 outflows.The sample introduction pinch valve 113 of leading up to enters filtrator 107, and water sample enters filter chamber 109 by filter bowl 108, the elimination granule foreign.Overflow passage 106 is arranged on the filtrator 107, and overflow passage 106 is discharged unnecessary water sample.Filtrator 107 water sample sample introduction speed can be regulated by ball valve 102.
Stirring, analytical instrument sampling process: turn-off sample introduction pinch valve 113, stop external water pump, start stirrer 110, the water quality in the filter bowl 108 that stirs by analyser intake pipe 111, is taken water sample away.Analyser intake pipe 111 front ends are equipped with ceramic filter head 112, carry out secondary filtration.
Backwash process: as shown in Figure 5, turn-off sample introduction pinch valve 113, start external water pump, at this moment current flow into from pretreater inlet pipeline 101, flow out through ball valve 102, ejector 103, outlet pipeline 104.Open recoil pinch valve 105, the water sample in filtrator 107 filter chambers 109 flows out through filter bowl 108, through recoil pinch valve 105, enters ejector 103.Because ejector 103 has had flow, current produce huge suction in 103 pairs of backflushing pipes of ejector, make in the quick exhaust chamber of water in filtrator 107 filter chambers 109, and filter bowl 108 is recoiled.Consider during filter chamber 109 designs to guarantee enough wash waters by filter chamber 109 volumes, guarantee scouring effect.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (6)
1. preposition pretreater of water quality online analyzer, comprise inlet and outlet pipe (101,104) and filtrator (107), it is characterized in that, connect ejector (103) between described inlet pipeline (101) and the outlet pipeline (104), described filtrator (107) bottom is by pipeline be connected in parallel sample introduction pinch valve (113) and the pinch valve (105) that recoils, described sample introduction pinch valve (113) pipeline connects inlet pipeline, and described recoil pinch valve (105) pipeline connects the suction chamber of ejector (103).
2. the preposition pretreater of water quality online analyzer according to claim 1 is characterized in that: be provided with filter bowl (108) in the described filtrator (107), stirrer (110) is set in the filter bowl (108).
3. the preposition pretreater of water quality online analyzer according to claim 1, it is characterized in that: described filtrator (107) arranges filtrator overflow passage (106).
4. the preposition pretreater of water quality online analyzer according to claim 1 is characterized in that: described inlet pipeline (101) is provided with ball valve (102) with described ejector (103) connection.
5. the preposition pretreater of water quality online analyzer according to claim 2 is characterized in that: comprise in-line analyzer intake pipe (111) in the described filter bowl (108).
6. the preposition pretreater of water quality online analyzer according to claim 5, it is characterized in that: described in-line analyzer intake pipe (111) lower end is provided with ceramic filter head (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101720414A CN103278358A (en) | 2013-05-12 | 2013-05-12 | Prepositioning preprocessor of online water quality analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101720414A CN103278358A (en) | 2013-05-12 | 2013-05-12 | Prepositioning preprocessor of online water quality analyzer |
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| CN2013101720414A Pending CN103278358A (en) | 2013-05-12 | 2013-05-12 | Prepositioning preprocessor of online water quality analyzer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132837A (en) * | 2014-08-25 | 2014-11-05 | 烟台东润仪表有限公司 | Pretreating device of online water quality analyzer |
| CN104215496A (en) * | 2014-09-17 | 2014-12-17 | 江苏恩测检测技术有限公司 | Water flocculation pretreatment device |
| CN104614219A (en) * | 2015-02-07 | 2015-05-13 | 杭州安控环保科技有限公司 | Water sample pretreating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201852722U (en) * | 2009-11-20 | 2011-06-01 | 无锡市戈力恩科技有限公司 | Embedded water quality sampling and pretreating device |
-
2013
- 2013-05-12 CN CN2013101720414A patent/CN103278358A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201852722U (en) * | 2009-11-20 | 2011-06-01 | 无锡市戈力恩科技有限公司 | Embedded water quality sampling and pretreating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132837A (en) * | 2014-08-25 | 2014-11-05 | 烟台东润仪表有限公司 | Pretreating device of online water quality analyzer |
| CN104215496A (en) * | 2014-09-17 | 2014-12-17 | 江苏恩测检测技术有限公司 | Water flocculation pretreatment device |
| CN104614219A (en) * | 2015-02-07 | 2015-05-13 | 杭州安控环保科技有限公司 | Water sample pretreating device |
| CN104614219B (en) * | 2015-02-07 | 2017-11-17 | 杭州安控环保科技有限公司 | A kind of water sample preprocessing apparatus |
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Application publication date: 20130904 |