CN201429518Y - Suspended particulate sample harvester for calibrating water turbidity meter - Google Patents
Suspended particulate sample harvester for calibrating water turbidity meter Download PDFInfo
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- CN201429518Y CN201429518Y CN2009200890648U CN200920089064U CN201429518Y CN 201429518 Y CN201429518 Y CN 201429518Y CN 2009200890648 U CN2009200890648 U CN 2009200890648U CN 200920089064 U CN200920089064 U CN 200920089064U CN 201429518 Y CN201429518 Y CN 201429518Y
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Abstract
The utility model discloses a suspended particulate sample harvester for calibrating a water turbidity meter, which effectively solves the problem that the data of turbidity detected by the prior water turbidity meter frequently deviates from the data of suspended particulate concentration of the same water sample detected through a filtering method. The utility model adopts the structure that a specific water sample inlet with a pipe thread inner diameter is formed at the top end of a hemispheric upper cover, the lower part of the hemispheric upper cover adopts a ring flange A which is connected with the ring flange B at the upper part of the lower cover through bolts and nuts, a rubber pad is arranged between the two ring flanges; a waste water outlet with a pipe thread inner diameter isformed at the bottom part of a hemispheric lower cover; and a ring-shaped bearing pedestal is arranged inside the harvester for supporting a round-hole plate as well as a micro fine screen and layersof standard filter papers arranged thereon. The specific water sample is sampled from the scheduled user water body of the turbidity meter, and after the suspended particulate concentration of the specific water sample is determined through the harvester, the specific water sample serves as a standard liquid for calibrating a water turbidity meter.
Description
One, technical field
The utility model relate to urban water supply water turbidity instrument by family scaling method and collection of specimens system thereof.Specifically, be the suspended particulates sample harvester that matching special equipment in the collection of specimens system is promptly demarcated the water turbidity instrument.The utility model abbreviates as: suspended particulates sample harvester, sample harvester or collector.
Two, background technology
The method of the aerosol concentration of each water factory's detection water sample is vertically to be placed on the water sample bottle on the fixed mount at present, water sample flows out from the bottle below, and after several layers of special filter paper filtered, the suspended particulates in the water sample were stayed on the paper, delicate metering after the drying can be obtained a result divided by volume of water sample.Present method of operating flow control is difficulty, and the specialized equipment precision of demarcating as turbidimeter is not enough, so the improvement of its equipment is imperative with innovation.
Three, utility model content
At above-mentioned situation, for overcoming the defective of prior art, for the knotty problem that " aerosol concentration " data that solve the same water sample that " turbidity " data that present water turbidity instrument measures and filtration method measure often depart from, the utility model provides a kind of suspended particulates sample harvester of demarcating the water turbidity instrument.The applicant has been bid to host patent of invention " water turbidity instrument by family scaling method and collection of specimens system thereof ", and the utility model is the used matching special equipment of sample acquisition system in this invention.
The technical scheme that the utility model solves is, it is the specific water sample water inlet of pipe thread that there is an internal diameter on the top of semisphere loam cake, and the bottom is the ring flange first, connects cap with upper part of the cover ring flange second under the semisphere with bolt and connects, and between two ring flanges rubber blanket is arranged; It is the waste water discharge opening of pipe thread that there is an internal diameter bottom of semisphere lower cover; There is annular support pedestal collector inside, in order to the supporting circular orifice and on fie screen and several layers of standard filter paper.
Know-why of the present utility model is: the water sample taking to come at first is divided into A, B two parts.Immediately water sample A is obturaged with the cover plate that does not absorb water, prevent that its water evaporates from preventing that also extraneous dust storm, dust and other impurities from falling into wherein, after the aerosol concentration for the treatment of water sample B was measured out, water sample A just became the normal fluid that demarcation will be used to take that turbidimeter of water sample.
The method of measuring the aerosol concentration of water sample B is: the volume of measuring water sample B earlier, all be poured in the open containers then water sample B, after the pipeline and water regulating valve of open containers below, be fed into the specific water sample water inlet on the utility model collector top, when water sample B sees through the several metafiltration paper of collector inside, suspended particulates wherein are blocked, and waste water then discharges from the waste water discharge opening of collector bottom.Be blocked delicate metering after the suspended particulates drying of getting off, divided by the volume of water sample B, its quotient is exactly the aerosol concentration of water sample B, equals the aerosol concentration of water sample A.
Its final purpose is to give full play to the advantage that turbidimeter is convenient to use and operating cost is cheap, can make its determination data reflect the truth of aerosol concentration in the water more exactly again.Its cost of paying is: every turbidimeter is before coming into operation, all will be by its user's that orders goods water quality characteristic, gather the suspended particulates sample and turbidimeter is one by one demarcated, rather than present way: use unified predetermined substance (for example formal hydrazine) to demarcate whole turbidimeters that dispatches from the factory.The trouble of doing like this that yes, but its results are huge, and the true service precision of turbidimeter is improved significantly.
Basic function of the present utility model is with commercially available national standard multilayer filter paper the suspended particulates in the specific water sample (to be comprised colloid 1nm～100nm, transition colloid 100nm～1 μ m, with suspended matter 1 μ m～1mm or bigger) filter, but do not comprise solute in the true solution (＜1nm).
Four, description of drawings
Accompanying drawing is a facade view of demarcating the suspended particulates sample harvester of water turbidity instrument.
Five, embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done detailed explanation.
As shown in drawings, the suspended particulates sample harvester is from appearance profile, as an oval-shaped spheroid.Wherein 1 is the specific water sample water inlet, its internal diameter is the DN15 pipe thread, connect with " specific water sample pipe behind the valve " in patent of invention " water turbidity instrument by family scaling method and the collection of specimens system thereof " accompanying drawing, its pressure and flow are regulated through " water regulating valve ", make it safe appropriateness.The 2nd, the semisphere loam cake.The 3rd, the sample that has collected in the collector.The 4th, several layers of standard filter paper, its number of plies is decided according to the actual requirements.Principle is: the aerosol concentration of being gathered water sample is high more, and the number of plies of standard filter paper is few more, and vice versa.The 5th, the conical bellmouth of semisphere loam cake 2, its effect is to cooperate easily when docking with the conical socket 6 of semisphere lower cover 14, finds the center accurately.The 7th, bolt connects cap, and the 8th, the ring flange first of semisphere loam cake 2, the 9th, the rubber blanket that seals, the 10th, the ring flange second of semisphere lower cover 14.The 11st, the annular support pedestal of semisphere lower cover 14 inside, its effect is the circular orifice 13 that support is made by stainless steel or duroplasts, the 12nd, the disc fie screen, it forms with stainless steel wire or copper wire braiding, be placed on the circular orifice 13, on disc fie screen 12 tops, place several layers of standard filter paper 4.The 15th, the waste water discharge opening of semisphere lower cover 14, its internal diameter are the DN15 pipe thread, link with " vent pipe " in patent of invention " water turbidity instrument by family scaling method and the collection of specimens system thereof " accompanying drawing.
By above-mentioned situation as can be seen, structure of the present utility model is, it is the specific water sample water inlet 1 of pipe thread that there is an internal diameter on the top of semisphere loam cake 2, and the bottom is a ring flange first 8, connect cap 7 with the ring flange second 10 usefulness bolts on semisphere lower cover 14 tops and connect, rubber blanket 9 is arranged between two ring flanges; It is the waste water discharge opening 15 of pipe thread that there is an internal diameter bottom of semisphere lower cover 14; There is annular support pedestal 11 collector inside, in order to the supporting circular orifice 13 and on fie screen 12 and several layers of standard filter paper 4.
In order to guarantee result of use, accumulation has the sample 3 that collects on several layers of standard filter paper 4, after specific water sample is all by filter paper 4, takes ring flange first 8, ring flange second 10 apart, and the sample 3 that collects is taken out; The joint of semisphere loam cake 2 and semisphere lower cover 14 has conical bellmouth 5 and conical socket 6 respectively, cooperates easily when making two hemisphere butt joints, finds the center accurately.
Concrete application process of the present utility model is: the water sample taking to come at first is divided into A, B two parts.Immediately water sample A is obturaged with the cover plate that does not absorb water, prevent that its water evaporates from preventing that also extraneous dust storm, dust and other impurities from falling into wherein, after the aerosol concentration for the treatment of water sample B was measured out, water sample A just became the normal fluid that demarcation will be used to take that turbidimeter of water sample.And then be after unit measures its volume with mL water sample B, be poured in the open containers, water sample B relies on flow through successively water sample pipe after water sample pipe before the pressure regulation of open containers below, water regulating valve, the pressure regulation of action of gravity to enter the specific water sample water inlet 1 of semisphere loam cake 2 tops of suspended particulates sample harvester, several metafiltration paper 4 in the collector are tackled the suspended particulates among the water sample B get off, and become the sample 3 that collects; The water that sees through number metafiltration paper 4 then discharges through the waste water discharge opening 15 of semisphere lower cover 14 belows.Water sample B is all by behind the number metafiltration paper 4, collector dismounting is opened, take out number metafiltration paper 4 and on suspended particulates sample 3, dried, with μ g is that unit weighs the total dry weight of several metafiltration paper 4 together with the suspended particulates on it 3, deduct the clean weight of known several metafiltration paper 4, promptly obtain the clean weight of suspended particulates 3, divided by the volume of water sample B, its quotient is the aerosol concentration of water sample B, its unit is μ g/mL, is equal to mg/L, and Chinese is called " degree ".Because water sample B and water sample A are the two parts that are divided into by with the water sample of once taking to come, their aerosol concentration is equal fully, so after the aerosol concentration of having tried to achieve water sample B, also just known the aerosol concentration of water sample A.So at this moment water sample A has also just become to detect the demarcation normal fluid of that turbidimeter of sampling water body.With preceding method the sampling water body is repeatedly taken a sample and measured, will obtain a plurality of data, to satisfy the demarcation demand of turbidimeter.The number of plies of filter paper and the open degree of water regulating valve can influence the turbidity through the waste water of filter paper, should suitably control, and the verification result data error that makes water sample B is in permissible range.
If be limited to the restriction of objective service condition or sample time, can not obtain enough demarcation standard water sample with preceding method, can increase by two kinds of householder methods: the first is blended into quantitative pure water with the higher standard water sample of aerosol concentration, it is diluted to the lower standard water sample of aerosol concentration, perhaps the standard water sample is inserted in the higher moving air of dry temperature, make water evaporates in the standard water sample go out a part, thereby obtain the higher standard water sample of aerosol concentration; It two is after the suspended particulates through oven dry that take out from the suspended particulates sample harvester are the unit weighing with μ g, drop in the pure water of certain volume, be mixed with normal fluid, if repeatedly dilute the lower normal fluid of concentration that just can be made into a plurality of grades with pure water again.But second kind of few as far as possible using of householder method, because comprising organic substance in the suspended particulates, therefore suspended particulates are gathered from water sample, through after the oven dry it being dropped into the normal fluid of making in the pure water again, its optical effect feature may not be identical with the optical effect feature of original water sample.
The utility model suspended particulates sample harvester is the special container of an often unlatching, closure, and its volume is little, uses manually-operated, requires deadweight lighter, so the most handy cast aluminium is made, test pressure is 0.05MPa.Note in the use, can only connect an outer silk short tube in the bottom waste water discharge opening 15 of suspended particulates collector, and feed atmosphere immediately, can not mounted valve after the short tube, otherwise may cause higher hydraulic pressure, damage equipment in the collector.
Claims (2)
1, a kind of suspended particulates sample harvester of demarcating the water turbidity instrument, it is characterized in that: it is the water sample water inlet (1) of pipe thread that there is an internal diameter on the top of semisphere loam cake (2), the bottom is ring flange first (8), connect cap (7) with the ring flange second (10) on semisphere lower cover (14) top with bolt and connect, rubber blanket (9) is arranged between two ring flanges; It is the waste water discharge opening (15) of pipe thread that there is an internal diameter bottom of semisphere lower cover (14); There is annular support pedestal (11) collector inside, in order to the supporting circular orifice (13) and on fie screen (12) and several layers of standard filter paper (4).
2, the suspended particulates sample harvester of demarcation water turbidity instrument according to claim 1 is characterized in that: the joint of semisphere loam cake (2) and semisphere lower cover (14) has conical bellmouth (5) and conical socket (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200890648U CN201429518Y (en) | 2009-03-16 | 2009-03-16 | Suspended particulate sample harvester for calibrating water turbidity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200890648U CN201429518Y (en) | 2009-03-16 | 2009-03-16 | Suspended particulate sample harvester for calibrating water turbidity meter |
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| Publication Number | Publication Date |
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| CN201429518Y true CN201429518Y (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200890648U Expired - Fee Related CN201429518Y (en) | 2009-03-16 | 2009-03-16 | Suspended particulate sample harvester for calibrating water turbidity meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020012A (en) * | 2014-06-25 | 2014-09-03 | 山东绿洁环境检测有限公司 | Sampling filtering bag for cryptospsridium and giardia detection in water |
| CN107063770A (en) * | 2017-03-21 | 2017-08-18 | 上海河口海岸科学研究中心 | A kind of nearly bottom multilayer in sublittoral region region based on transmission-light turbidity instrument control hangs the acquisition method and its device of sand-like product |
| CN114146740A (en) * | 2021-12-29 | 2022-03-08 | 核工业北京地质研究院 | Turbidity meter sample bottle and method for in-situ detection of turbidity of bentonite colloid release liquid |
-
2009
- 2009-03-16 CN CN2009200890648U patent/CN201429518Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020012A (en) * | 2014-06-25 | 2014-09-03 | 山东绿洁环境检测有限公司 | Sampling filtering bag for cryptospsridium and giardia detection in water |
| CN107063770A (en) * | 2017-03-21 | 2017-08-18 | 上海河口海岸科学研究中心 | A kind of nearly bottom multilayer in sublittoral region region based on transmission-light turbidity instrument control hangs the acquisition method and its device of sand-like product |
| CN107063770B (en) * | 2017-03-21 | 2023-09-15 | 上海河口海岸科学研究中心 | Device and method for collecting near-bottom multilayer suspended sand samples in sub-tidal zone area based on transmitted light turbidity meter control |
| CN114146740A (en) * | 2021-12-29 | 2022-03-08 | 核工业北京地质研究院 | Turbidity meter sample bottle and method for in-situ detection of turbidity of bentonite colloid release liquid |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20110316 |