CN2055936U - Turbidimeter with fully autornatic measuring range - Google Patents
Turbidimeter with fully autornatic measuring range Download PDFInfo
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- CN2055936U CN2055936U CN 89212755 CN89212755U CN2055936U CN 2055936 U CN2055936 U CN 2055936U CN 89212755 CN89212755 CN 89212755 CN 89212755 U CN89212755 U CN 89212755U CN 2055936 U CN2055936 U CN 2055936U
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- turbidimeter
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- light source
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Abstract
The utility model belongs to an instrument used for measuring water quality turbidity of tap water, industrial water, the water of rivers or lakes, etc. The turbidimeter with fully automatic measuring range is particularly suitable for automatic monitoring of the water quality whose turbidity is high or whose variation range of the turbidity is big; meanwhile, the turbidimeter with fully automatic measuring range is used in hydrological department to monitor the content of silt in the river under the condition of changing a formula. The turbidimeter with fully automatic measuring range is composed of a measuring unit and a computer, and adopts measurements of fully automatic dynamic light source and light transmission types which are the key problem in technology. Compared with the existing turbidimeter, the utility model has the advantages of big measuring ranges, high measuring precision, convenient installation, energy saving, etc.
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, it is measured in the light path system partly and all adopts constant light source, 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.
Have turbidimeter now and be integral structure on forming, i.e. measurement part and computing machine partly connect together and become 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.
Through China Science Technology intelligence Institute ChongQing Branch's hand inspection and international online retrieval, adopt structural principle of the present invention, can reach the turbidimeter that 40000 mg/litre high turbidity water qualities are measured, still not have this precedent (the search report book of seeing Appendix) at present both at home and abroad.
The present invention is by measuring partly and computing machine is partly formed two style structure promptly to measure part be one (comprising water circuit system and light path system), and computer system is another body.Measure partial structure shown in accompanying drawing (1), its water circuit system has: dirty sheet (5) wiped by operating motor (1), suction water vat 2 pull bars (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 partly as accompanying drawing (2) block diagram shown in, comprising: Z80 single card microcomputer, 16 row (band single-chip microcomputer) mini-printers, 14 A/D, 12 D/A(current modes of two-way), compositions such as execution switching value interface and 1 nixie display.
Measure partly this body and adopt floating drum installations of bubbling through the water column, also can be install suction pipe additional bottom it, directly draw tested water without floating drum.Computing machine partly this body then is placed in the pulpit, connects with signal cable between two bodies, connects with the mains, and presses computer power switch, and 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) like this, and 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), be automatic adjusting, light source provides the path of a light.
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 the measurement of 5000 mg/litre, 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.
The computing machine partly course of work is seen 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 garden shape water jacket in the prior art in water circuit system, and this also helps the raising of measuring accuracy to have thickeied the measurement water layer simultaneously.
Range ability of the present invention is wide, can be at turbidity 0---and carry out full-automatic range in the 40000 mg/litre scopes and measure.The present invention can not be with mini-printer be the CD-1 type (0---40000PPM) turbidimeter, also can be with 16 the row mini-printers be the CD-1A type (0---40000PPM) turbidimeter.The present invention also can connect with other microcomputer and register instrument, and the cabinet back has 0---and 10mA output signal (linearization) and take advantage of 10 switching value signals output, 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 read 0---the 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.Casing (13) adopts aluminium alloy casting to be processed into.The light path frame adopts the stainless steel material of 25 * 40mm to make.
Computing machine partly this body is loaded on the pulpit, measures this body and function floating drum of part and 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: 0---during 999 mg/litre, be 0.01 mg/litre; 1000---during 9999 mg/litre 0.1 mg/litre, 10000---during 40000 mg/litre, be 1 mg/litre.
4. water consumption: 0.
5. output signal: 0---10mA and take advantage of 10 switching signals (taking advantage of at 10 o'clock is high level, non-take advantage of at 10 o'clock be low level).
6. supply voltage: 220V ± 10%.
7. power consumption:＜2 degree/days.
8. operating ambient temperature: 0---45 ℃.
9. physical dimension: measure partly 370 * 250 * 420mm.
Computing machine is 430 * 390 * 130mm partly.
The present invention compares with having turbidimeter both at home and abroad now, has the following advantages
Range ability wide (0---40000PPM), the precision height has 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 handled, good linearity, error be little, can be directly with Other Instruments with calculate supporting use, carry 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 the demarcation light 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 (3)
1, a kind of turbidimeter of monitoring water quality, partly form by measuring part and computing machine, the water circuit system of measuring part 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), and measuring light path system partly 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: measure partly light path system light source (7), photoelectric cell (11) connect the full-automatic dynamic light source of composition with computing machine.
2, by the described turbidimeter of claim 1, it is characterized in that: measure partly and the computing machine one of partly respectively doing for oneself respectively the composition two style structure.
3, by the described turbidimeter of claim 1, it is characterized in that: measuring light path system partly has an optical attenuation plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89212755 CN2055936U (en) | 1989-01-28 | 1989-01-28 | Turbidimeter with fully autornatic measuring range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89212755 CN2055936U (en) | 1989-01-28 | 1989-01-28 | Turbidimeter with fully autornatic measuring range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2055936U true CN2055936U (en) | 1990-04-11 |
Family
ID=4868860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89212755 Withdrawn CN2055936U (en) | 1989-01-28 | 1989-01-28 | Turbidimeter with fully autornatic measuring range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2055936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042973A (en) * | 2010-10-18 | 2011-05-04 | 孙玥 | Real-time on-line monitoring system for water turbid degree |
| CN104838252A (en) * | 2012-07-27 | 2015-08-12 | 哈赫公司 | Continuous turbidimetric total iron monitoring |
-
1989
- 1989-01-28 CN CN 89212755 patent/CN2055936U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042973A (en) * | 2010-10-18 | 2011-05-04 | 孙玥 | Real-time on-line monitoring system for water turbid degree |
| CN104838252A (en) * | 2012-07-27 | 2015-08-12 | 哈赫公司 | Continuous turbidimetric total iron monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: LIU DONG TO: CHONGQING SOUTH CHINA MACHINE PLANT |
|
| CP03 | Change of name, title or address |
Address after: Zheng Jie in Sichuan province Chongqing Nanping Nan'an District No. 84-11 Patentee after: Southern China Chongqing Electromechanical Factory Address before: Gulou Street, Shizhong District, Sichuan, Chongqing, 36 Patentee before: Liu Dong |
|
| 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 |