CN1011620B - Full-automatic turbidimeter - Google Patents
Full-automatic turbidimeterInfo
- Publication number
- CN1011620B CN1011620B CN 89105856 CN89105856A CN1011620B CN 1011620 B CN1011620 B CN 1011620B CN 89105856 CN89105856 CN 89105856 CN 89105856 A CN89105856 A CN 89105856A CN 1011620 B CN1011620 B CN 1011620B
- Authority
- CN
- China
- Prior art keywords
- water
- light source
- measure portion
- turbidimeter
- light path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 20
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000008235 industrial water Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000004879 turbidimetry Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention belongs to an instrument for measuring the turbidity of water quality of running water, industrial water and river and lake water, etc., and is specially suitable for automatic monitoring of water quality with high turbidity or large turbidity change range. Meanwhile, the invention can be used for monitoring the content of silt in river water by a hydrological department under the condition of changing the formula. The invention is composed of a measuring part and a computer part into a two-body structure, and adopts full-automatic dynamic light source and light transmission type measurement, which is the key technology of the invention.
Description
The invention belongs to a kind of instrument of measuring water turbidities such as tap water, process water and rivers and lakes water, be specially adapted to high turbidity water quality or turbidity variation water quality greatly and carry out continuous monitoring.Simultaneously, the present invention also can be used for hydrology department monitoring silt charge in river water content under the situation that changes formula.
Domestic and international existing turbidimeter, all adopt constant light source in the light path system of its measure portion, promptly use a specified standard light source, this can only be used for the measurement of water quality in certain turbidity scope, and can not be with the bigger variation of water turbidity conversion measurement range thereupon.In addition, the light source convex lens in light path system, when lens or photoelectric cell superficial dust, constant standard sources can not adapt.
Existing turbidimeter uses reflective measurement structure on light path principle both at home and abroad, be that the light that light source sends is measured through the reflection of the tested water surface, along with the rising of tested water turbidity, measuring system just can enter saturated very soon and can not adapt to the measurement requirement that turbidity raises.
Existing turbidimeter is integral structure on forming, promptly measure portion and computing machine partly connect together becomes an integral body, thereby the installation and maintenance difficulty, the high and selection installation environment of erected cost.Simultaneously, integral structure is owing to needing longer conduit pipe, so the data of surveying easily are offset drawbacks such as actual value.
Domestic existing turbidimeter does not have the microcomputer product, though the turbidimeter of microcomputer product is abroad arranged, existing both at home and abroad turbidimeter all can not carry out the wide range turbidity value and measure.
Because the destruction of ecologic environment, the rivers sediment charge constantly increases, and particularly the high water systems of water turbidity such as China the Yellow River, the Changjiang river and Jia Lingjiang River fail to solve ultra's problems of measurement for many years always.
How to solve turbidimeter and in long-term the use, need not manually adjust or demarcate light source, and make it change automatic transformation light source accurately to measure with water turbidity, particularly to the measurement of still indeterminable high turbidity value water quality both at home and abroad at present, make it be easy to installation and maintenance, easy and simple to handle, energy-conservation and measuring accuracy height is the purpose that the present invention will reach.
It is that measure portion is one (comprising water circuit system and light path system) that the present invention is grouped into two style structure by measure portion and computer department, and computer system is another body.The measure portion structure is shown in accompanying drawing (1), and its water circuit system has: dirty sheet (5) wiped by operating motor (1), suction water vat 2, pull bar (3), light path frame (4), ox-hide and rectangle water jacket (6) is formed.Its light path system has: light source (7), convex lens (8), lens (9), optical attenuation plate (10), photoelectric cell (11) and electric contact thermometer (12) are formed.
Computing machine part comprises as accompanying drawing (2) block diagram shown in: Z80 single card microcomputer, 16 row (band single-chip microcomputer) mini-printers, 14 A/D, 12 D/A(current modes of two-way), execution switching value interface and 1 " composition such as nixie display.
This one of measure portion adopts floating drum installations of bubbling through the water column, and also can be without floating drum install suction pipe additional bottom it, directly draws tested water.This body of computing machine part then is placed in the pulpit, connects with signal cable between two bodies.Connect with the mains, press computer power switch, this turbidimeter can enter duty.
Principle of work is as follows: during the water circuit system suction, operating motor 1 turns clockwise, upstroke in the suction water vat (2), pull bar (3), light path frame (4) and ox-hide are wiped all risings simultaneously of dirty sheet (5) at this moment, tested water is sucked in the rectangle water jacket (6), partly carry out turbidimetry for light path system and computing machine.During the water circuit system draining, the rotation of operating motor (1) inhour, suction water vat (2) inner carrier is descending, this moment pull bar (3), light path frame (4) and ox-hide wipe dirty sheet (5) all the while descending, tested water is discharged rectangle water jacket (6), and like this, ox-hide is wiped dirty sheet (5) and just the lens in the light path system (9) wiped dirt once, and the center of light path frame (4) just in time is parked on the center line of lens (9), and the path of a light is provided for the automatic adjusting light source.
The measurement water layer thickness that rectangle water jacket (6) in the water circuit system is controlled is 30 ± 0.10mm, and inner plane requires smooth bright and clean.
The electric contact thermometer of light path system (12) is the control circuit heating element, make photoelectric cell (11) constant temperature 45 ℃ working temperature to improve the stability of photoelectric cell (11).
The power of light source is done dynamically control by the 0-10mA current signal of computing machine and output, and it is divided into two kinds of duties:
The demarcation of A turbidity light source when 5000 mg/litre are following.
When light path frame (4) fell and overlaps with the center of lens (9), computing machine was adjusted light source by detecting the current value of photoelectric cell (11), makes light source (11) adjust to standard value automatically.
The demarcation and the measurement of B turbidity light source when 5000 mg/litre are above.
When light source can not satisfy that water turbidity raises and when surpassing 5000 milliliters/liter measurement, this moment, light source must strengthen, and after the light source of the demarcating enhancing, if no high turbidity water quality's blocks, light source after the enhancing can burn photoelectric cell (11), when demarcating light source, computing machine sends instruction and earlier optical attenuation plate (10) is moved on to photoelectric cell (11) front end, begins to demarcate light source then for this reason.During measurement, earlier tested water is sucked rectangle water jacket (6), optical attenuation plate (10) is removed just entered turbidimetry then.All measuring processes all are to be handled by computing machine, and it is exported as calculated and draws after the machine linearization process, and so good linearity, error is little, and can be directly and Other Instruments and the supporting use of computing machine carry out continuous monitoring and print record or automatic control.
Computer department divides the work process to see accompanying drawing (3) block diagram.
From accompanying drawing (3) block diagram, can find out that the adjustment of light source and the measurement of turbidity value all are dynamically to realize overall process.Block diagram was measured by 15 minutes and is once worked out in the accompanying drawing (3), also can program by different Measuring Time as requested.
The present invention structurally adopts double-body bike to compare with the integral type of prior art, install simple, overcritical installation environment, erected cost is low, need not install water-transmission line additional, complete machine is water consumption type not fully, than conventional turbidimeter year economizing on water more than 3000 cubic metres.Simultaneous computer is loaded on the indoor Operation and Maintenance of being convenient to.
This is the another significant feature that is different from the constant light source that domestic and international prior art adopts to adopt full-automatic dynamic light source in light path system.Existing turbidimeter all is to use the specified standard light source, and demarcation light source of the present invention is the dynamic light source that thereupon changes with the variation of environmental working condition.When the survey water turbidity bigger variation takes place or at convex lens (8), lens (9), photoelectric cell (11) superficial dust during to the constant light source incompatibility of standard, dynamic light source is with automatic conversion calibration value, accurately measuring, thereby need not in using all the year round, light path system and water circuit system are artificially being cleaned and cleaning.Simultaneously, complete machine of the present invention is realized the gamut automatic measurement, and can realize the measurement of the insurmountable high turbidity value of prior art is also mainly realized by the dynamic light source principle.
Light path system of the present invention has adopted Nonopaque type measurement structure (be light that light source sends pass tested water layer detect to photoelectric cell (11)) to compare with the reflective measurement structure that prior art is adopted, improve the degree of accuracy of measuring greatly, also improved the measurement range of turbidity value simultaneously greatly.
The present invention has adopted rectangle water jacket (6) to replace the design of round water jacket in the prior art in water circuit system, has thickeied the measurement water layer simultaneously, and this also helps the raising of measuring accuracy.
Range ability of the present invention is wide, can carry out full-automatic range and measure in turbidity 0-40000 mg/litre scope.It is CD-1 type (0-40000PPM) turbidimeter that the present invention can not be with mini-printer, and also can be with 16 row mini-printers is CD-1A type (0-40000PPM) turbidimeter.The present invention also can connect with other microcomputer and register instrument, and there is 0-10mA output signal (linearization) the cabinet back and takes advantage of 10 switching value signals output, and when taking advantage of 10 signals to be high level, electric current is on duty 10, direct-reading current value during for low level.The present invention considers the cost problem, so with 12 D/A outputs, add and take advantage of 10 signals, also can adopt 16D/A to remove and take advantage of 10 signals, and gamut just can directly have been read the 0-10mA value.
Be one embodiment of the present of invention shown in accompanying drawing (1), accompanying drawing (2) and the accompanying drawing (3).Wherein, rectangle water jacket (6) adopts the signal bronze casting to be processed into, and its measured hole is 30 ± 0.10mm.Light source (7) adopts the 150W24V halogen tungsten lamp.Convex lens (8) is Φ 50mm, and focal length is 170mm.Photoelectric cell (11) adopts the SR65 silicon photocell, and casing (13) adopts aluminium alloy casting to be processed into.The light path frame adopts the stainless steel material of 25 * 40mm to make.
This body of computing machine part is loaded on the pulpit, and this body and function floating drum of measure portion is installed on the water surface, connects with 9 core shielded cables between two bodies.
1. measurement range: 0-40000 mg/litre (full-automatic range).
2. not repeated :≤1%(demarcates with analyzing pure zeyssatite).
3. minimum division value: during the 0-999 mg/litre, be 0.01 mg/litre; Being 0.1 mg/litre during the 1000-9999 mg/litre, during the 10000-40000 mg/litre, is 1 mg/litre.
4. water consumption: 0.
5. output signal: 0-10mA and take advantage of 10 switching signals (take advantage of at 10 o'clock for " height " level, non-taking advantage of was " low " level at 10 o'clock).
6. supply voltage: 220V ± 10%.
7. power consumption:＜2 degree/days.
8. operating ambient temperature: 0-45 ℃.
9. physical dimension: measure portion 370 * 250 * 420mm.
Computing machine part 430 * 390 * 130mm.
The present invention compares with having transmissometer both at home and abroad now, has the following advantages.
1. range ability wide (0-40000PPM), precision height have solved fails the high turbidity water quality's that realizes a measurement difficult problem for many years always.
2. the machine of exporting is as calculated processed, and good linearity, error be little, can directly support the use with Other Instruments and calculating, carries out continuous monitoring and print record or automatic control.
3. simple installation is not selected the installation site, does not need artificial the adjustment or Calibrating source in long-term the use, more need not hand sweeping, thus easy and simple to handle, guaranteed the continuity that instrument uses.
4. economize on electricity, water consumption not.
Claims (4)
1, a kind of turbidimeter of monitoring water quality, be grouped into by measure portion and computer department, the water circuit system of measure portion has operating motor (1) suction water vat (2), pull bar (3), light path frame (4), ox-hide to wipe dirty sheet (5) and rectangle water jacket (6), the light path system of measure portion has light source (7), convex lens (8), lens (9), optical attenuation plate (10), photoelectric cell (11) and electric contact thermometer 12, it is characterized in that: the light path system light source of measure portion is full-automatic dynamic light source.
2,, it is characterized in that by the described turbidimeter of claim 1: measure portion and the computing machine part one of respectively doing for oneself respectively, form two style structure, between two bodies by cable connection.
3, by the described turbidimeter of claim 2, it is characterized in that: this one of measure portion can float on level with floating drum installs, and also can install suction pipe additional in its bottom and install.
4, by the described turbidimeter of claim 1, it is characterized in that: the light path system of measure portion has an optical attenuation plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105856 CN1011620B (en) | 1989-01-28 | 1989-01-28 | Full-automatic turbidimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105856 CN1011620B (en) | 1989-01-28 | 1989-01-28 | Full-automatic turbidimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1036832A CN1036832A (en) | 1989-11-01 |
| CN1011620B true CN1011620B (en) | 1991-02-13 |
Family
ID=4856491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105856 Expired CN1011620B (en) | 1989-01-28 | 1989-01-28 | Full-automatic turbidimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1011620B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3023768B1 (en) * | 2014-11-21 | 2020-03-04 | Hach Lange GmbH | A nephelometric turbidimeter and method for controlling the humidity of venting air in a nephelometric turbidimeter |
| CN108710374A (en) * | 2018-06-01 | 2018-10-26 | 江苏大学 | A kind of ambulation control method and device of full-automatic fishpond dirt-dredging machine |
| CN109507150B (en) * | 2018-10-19 | 2021-05-14 | 南京帕克光电科技有限公司 | Wide-range insertion type turbidity monitoring probe |
| CN114324246B (en) * | 2021-12-24 | 2024-04-09 | 无锡谱视界科技有限公司 | Water quality detection device, method and control system |
-
1989
- 1989-01-28 CN CN 89105856 patent/CN1011620B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1036832A (en) | 1989-11-01 |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |