GB1245102A - Automatic control of chemical concentration - Google Patents
Automatic control of chemical concentrationInfo
- Publication number
- GB1245102A GB1245102A GB753768A GB753768A GB1245102A GB 1245102 A GB1245102 A GB 1245102A GB 753768 A GB753768 A GB 753768A GB 753768 A GB753768 A GB 753768A GB 1245102 A GB1245102 A GB 1245102A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pool
- chlorine
- chamber
- motor
- concentration
- 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
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 4
- 229910052801 chlorine Inorganic materials 0.000 abstract 4
- 239000000460 chlorine Substances 0.000 abstract 4
- 230000009182 swimming Effects 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000000645 desinfectant Substances 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- 238000005070 sampling Methods 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
1,245,102. Automatic concentration control. N. C. HARPER, J. H. MARSHMAN and H. T. MARSHMAN. Feb.13, 1969 [Feb.15, 1968], No.7537/68. Heading G3R. The water in a swimming pool is repeatedly sampled at intervals and a disinfectant injector automatically controlled in dependence on measurements of the disinfectant concentration in the samples. In Fig.7, a solenoid-operated valve 81 is periodically opened under the control of a cam driven by a motor 24 so that samples of water drawn from a swimming pool by a pump 12 and being returned to the pool at 15 are periodically collected in a glass test chamber 32. Further cams driven by motor 24 cause operation of a pump 83 to add a quantity of chlorine indicator from a tank 26 to chamber 32 and operation of an electromagnetic vibrator 85 to agitate the mixture. The amount of blue light transmitted through chamber 32 and received by a photo-voltaic cell (not shown) is dependent on the concentration of chlorine in the swimming pool and if, for any sample, this is less than a predetermined value corresponding to a small quantity of free chlorine, a bridge circuit including the photo-cell becomes unbalanced in such sense as to operate, through transistors and a silicon controlled rectifier, an electromagnetic relay which adds a dose of chlorine to the pool. The electronic circuit is duplicated for reliability. In a modification, the motor-driven cams mechanically operate a valve supplying water from the pool to the sampling chamber and a piston pump supplying the indicator to the sample which are integral with a glass block forming the sampling chamber.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB753768A GB1245102A (en) | 1968-02-15 | 1968-02-15 | Automatic control of chemical concentration |
| US3643102D US3643102A (en) | 1968-02-15 | 1969-02-10 | Radiation-sensitive control for the concentration of a chemical |
| ES363675A ES363675A1 (en) | 1968-02-15 | 1969-02-14 | Radiation-sensitive control for the concentration of a chemical |
| DE1907486A DE1907486C3 (en) | 1968-02-15 | 1969-02-14 | Method for regulating the concentration of a disinfectant in the water of a swimming pool and device for carrying out the method |
| CH231969A CH508941A (en) | 1968-02-15 | 1969-02-14 | Regulator for the concentration of chemicals in liquids, in particular a disinfectant in a swimming pool |
| JP1051669A JPS4828230B1 (en) | 1968-02-15 | 1969-02-14 | |
| FR6903594A FR2001959A1 (en) | 1968-02-15 | 1969-02-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB753768A GB1245102A (en) | 1968-02-15 | 1968-02-15 | Automatic control of chemical concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1245102A true GB1245102A (en) | 1971-09-08 |
Family
ID=9835014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB753768A Expired GB1245102A (en) | 1968-02-15 | 1968-02-15 | Automatic control of chemical concentration |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3643102A (en) |
| JP (1) | JPS4828230B1 (en) |
| CH (1) | CH508941A (en) |
| DE (1) | DE1907486C3 (en) |
| ES (1) | ES363675A1 (en) |
| FR (1) | FR2001959A1 (en) |
| GB (1) | GB1245102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016079A (en) * | 1975-09-16 | 1977-04-05 | Aquasol, Inc. | Automatic chlorine and pH control apparatus for swimming pools |
| US11610467B2 (en) | 2020-10-08 | 2023-03-21 | Ecolab Usa Inc. | System and technique for detecting cleaning chemical usage to control cleaning efficacy |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776408A (en) * | 1971-06-28 | 1973-12-04 | Scott Paper Co | Nursing unit |
| US3992109A (en) * | 1973-03-15 | 1976-11-16 | Calspan Corporation | Cyclic colorimetry method and apparatus |
| US4013039A (en) * | 1976-09-02 | 1977-03-22 | International Business Machines Corporation | Wet processing PH control |
| CA2922949A1 (en) * | 2015-03-05 | 2016-09-05 | Pentair Water Pool And Spa, Inc. | Chemical controller system and method |
-
1968
- 1968-02-15 GB GB753768A patent/GB1245102A/en not_active Expired
-
1969
- 1969-02-10 US US3643102D patent/US3643102A/en not_active Expired - Lifetime
- 1969-02-14 ES ES363675A patent/ES363675A1/en not_active Expired
- 1969-02-14 FR FR6903594A patent/FR2001959A1/fr not_active Withdrawn
- 1969-02-14 JP JP1051669A patent/JPS4828230B1/ja active Pending
- 1969-02-14 DE DE1907486A patent/DE1907486C3/en not_active Expired
- 1969-02-14 CH CH231969A patent/CH508941A/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016079A (en) * | 1975-09-16 | 1977-04-05 | Aquasol, Inc. | Automatic chlorine and pH control apparatus for swimming pools |
| US11610467B2 (en) | 2020-10-08 | 2023-03-21 | Ecolab Usa Inc. | System and technique for detecting cleaning chemical usage to control cleaning efficacy |
| US12100285B2 (en) | 2020-10-08 | 2024-09-24 | Ecolab Usa Inc. | System and technique for detecting cleaning chemical usage to control cleaning efficacy |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1907486B2 (en) | 1979-03-22 |
| CH508941A (en) | 1971-06-15 |
| JPS4828230B1 (en) | 1973-08-30 |
| DE1907486A1 (en) | 1969-09-11 |
| US3643102A (en) | 1972-02-15 |
| DE1907486C3 (en) | 1979-11-22 |
| ES363675A1 (en) | 1971-01-01 |
| FR2001959A1 (en) | 1969-10-03 |
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