ES484663A1 - Dosimetro mejorado - Google Patents
Dosimetro mejoradoInfo
- Publication number
- ES484663A1 ES484663A1 ES484663A ES484663A ES484663A1 ES 484663 A1 ES484663 A1 ES 484663A1 ES 484663 A ES484663 A ES 484663A ES 484663 A ES484663 A ES 484663A ES 484663 A1 ES484663 A1 ES 484663A1
- Authority
- ES
- Spain
- Prior art keywords
- dosimeter
- air
- pump
- flow
- filter
- 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
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000004817 gas chromatography Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0676—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on flow sources
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Automation & Control Theory (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Measurement Of Radiation (AREA)
- Compressor (AREA)
- Measuring Volume Flow (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
1. Dosímetro mejorado que incluye un motor eléctrico, una fuente de suministro de energía, un orificio de descarga, un dispositivo de filtro en el cual se acumulan las partículas o vapores presentes en una corriente de aire bombeada a través del dosímetro a un caudal constante controlado, una bomba de accionamiento variable que presenta un orifico de entrada y un orificio de salida, conectada por medio de un tubo con el dispositivo de filtro y acoplada con el motor eléctrico para aspirar la corriente de aire a través del dispositivo de filtro; estando un orificio calibrado situado en un tubo conectado con la bomba y con un orifico de descarga, con lo cual la corriente de aire es bombeada a través del orificio calibrado, creando así una pérdida de carga en la corriente de aire; un dispositivo para reducir las pulsaciones en la corriente de aire; un presostato diferencial situado en un tubo conectado paralelamente al orificio calibrado y que es activado por un cambio de la pérdida de carga enla corriente de aire, creando así una señal eléctrica de entrada de baja presión; un circuito integrador conectado eléctricamente con una fuente de energía y con el presostato, utilizando la señal de entrada de baja tensión generada por el presostato para integrarla; un circuito amplificador conectado eléctricamente con la fuente de energía y conectado en serie con el circuito integrador y con el motor eléctrico que amplifica la señal generada por el circuito integrador y aplica la señal amplificada al motor eléctrico, controlando así la velocidad del motor que arrastra la bomba de acuerdo con la señal generada por el presostato para mantener la corriente de aire con un caudal constante controlado; estando dicho dosímetro caracterizado por la mejora que consiste en: una válvula de derivación ajustable conectada en paralelo con la bomba de accionamiento variable, con lo cual se reciclan cantidades reguladas de aire procedentes de la salida de la bomba en la entrada de la misma, lo que permite que la bomba proporcione un caudal de aire reducido constante a través del dosímetro.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/948,037 US4257746A (en) | 1978-10-02 | 1978-10-02 | Dosimeter having a low air flow rate |
Publications (1)
Publication Number | Publication Date |
---|---|
ES484663A1 true ES484663A1 (es) | 1980-06-16 |
Family
ID=25487159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES484663A Expired ES484663A1 (es) | 1978-10-02 | 1979-10-02 | Dosimetro mejorado |
Country Status (17)
Country | Link |
---|---|
US (1) | US4257746A (es) |
JP (1) | JPS5550177A (es) |
AR (1) | AR218559A1 (es) |
AU (1) | AU523661B2 (es) |
BE (1) | BE879117A (es) |
BR (1) | BR7906070A (es) |
CA (1) | CA1116434A (es) |
CH (1) | CH641564A5 (es) |
DE (1) | DE2939957A1 (es) |
ES (1) | ES484663A1 (es) |
FR (1) | FR2438291A1 (es) |
GB (1) | GB2033109B (es) |
IT (1) | IT1193235B (es) |
MX (1) | MX147570A (es) |
NL (1) | NL7907321A (es) |
PT (1) | PT70261A (es) |
SE (1) | SE452200B (es) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0040928B1 (en) * | 1980-05-14 | 1984-09-19 | ROTHEROE & MITCHELL LIMITED | Gas sampler |
US4384825A (en) * | 1980-10-31 | 1983-05-24 | The Bendix Corporation | Personal sampling pump |
JPS57108635A (en) * | 1980-12-26 | 1982-07-06 | Toyota Motor Corp | Fixed capacity type exhaust gas collecting device |
GB2091910B (en) * | 1980-12-29 | 1984-09-19 | Landi Den Hartog Bv | Fluid pressure regulating system |
JPS58111738A (ja) * | 1981-12-24 | 1983-07-02 | ギリアン・インストルメント・コ−ポレ−シヨン | 流体試料採取器 |
FR2551869B1 (fr) * | 1983-09-14 | 1988-03-11 | Ifacap | Procede de prelevement d'air sur un poste de travail et dispositif de mise en oeuvre |
US4543891A (en) * | 1984-04-12 | 1985-10-01 | Westinghouse Electric Corp. | Apparatus and process for heat treatment |
US4527953A (en) * | 1984-10-12 | 1985-07-09 | E. I. Du Pont De Nemours And Company | Pump unit for sampling air |
DE3509360A1 (de) * | 1985-02-14 | 1986-08-14 | Bbc Brown Boveri & Cie | Verfahren zur messung des sauerstoffgehalts im abgas von brennkraftmaschinen |
US4841404A (en) * | 1987-10-07 | 1989-06-20 | Spring Valley Associates, Inc. | Pump and electric motor protector |
DE3822360A1 (de) * | 1988-07-01 | 1990-01-04 | Kettrup Antonius | Gasprobennehmer |
FR2651577A1 (fr) * | 1989-09-05 | 1991-03-08 | Siderurgie Fse Inst Rech | Procede et dispositif pour mesurer la concentration dans l'atmosphere de poussieres en suspension entrainees par le vent a partir de tas de materiaux pulverulents. |
JPH02118430A (ja) * | 1989-09-05 | 1990-05-02 | Gilian Instr Corp | 流体試料採取器 |
DE4113695A1 (de) * | 1991-04-26 | 1992-10-29 | Bayer Ag | Kontinuierlich betriebener gasanalysator |
EP0642376A4 (en) * | 1991-11-01 | 1995-04-12 | Sorenson Laboratories, Inc. | Dual mode laser smoke evacuation system with sequential filter monitor and vacuum compensation. |
JP3997318B2 (ja) * | 1998-02-16 | 2007-10-24 | 株式会社サタコ | ポンプの制御方法及び制御装置 |
DE19812551C2 (de) * | 1998-03-21 | 2002-01-24 | Jakob Hois | Vorrichtung zum Prüfen der mikrobiologischen Qualität eines gasförmigen Mediums |
US10005678B2 (en) | 2007-03-13 | 2018-06-26 | Heartland Technology Partners Llc | Method of cleaning a compact wastewater concentrator |
US8679291B2 (en) * | 2007-03-13 | 2014-03-25 | Heartland Technology Partners Llc | Compact wastewater concentrator using waste heat |
US8790496B2 (en) * | 2007-03-13 | 2014-07-29 | Heartland Technology Partners Llc | Compact wastewater concentrator and pollutant scrubber |
US8741100B2 (en) | 2007-03-13 | 2014-06-03 | Heartland Technology Partners Llc | Liquid concentrator |
US8801897B2 (en) * | 2007-03-13 | 2014-08-12 | Heartland Technology Partners Llc | Compact wastewater concentrator and contaminant scrubber |
US20100176042A1 (en) * | 2007-03-13 | 2010-07-15 | Duesel Jr Bernard F | Wastewater Concentrator |
US7905853B2 (en) * | 2007-10-30 | 2011-03-15 | Baxter International Inc. | Dialysis system having integrated pneumatic manifold |
JP5903272B2 (ja) | 2009-02-12 | 2016-04-13 | ハートランド テクノロジー パートナーズ リミティッド ライアビリティ カンパニーHeartland Technology Partners Llc | 廃熱を使用する小型廃水濃縮装置 |
WO2012100074A2 (en) | 2011-01-21 | 2012-07-26 | Heartland Technology Partners Llc | Condensation plume mitigation system for exhaust stacks |
US9296624B2 (en) | 2011-10-11 | 2016-03-29 | Heartland Technology Partners Llc | Portable compact wastewater concentrator |
US8808497B2 (en) | 2012-03-23 | 2014-08-19 | Heartland Technology Partners Llc | Fluid evaporator for an open fluid reservoir |
FR2991452B1 (fr) * | 2012-05-30 | 2015-01-16 | Ac Sp Etude & Rech En Hygiene Ind | Procede et dispositif de prelevement d'air pour mesure d'amiante atmospherique |
US8741101B2 (en) | 2012-07-13 | 2014-06-03 | Heartland Technology Partners Llc | Liquid concentrator |
US8585869B1 (en) | 2013-02-07 | 2013-11-19 | Heartland Technology Partners Llc | Multi-stage wastewater treatment system |
US9199861B2 (en) | 2013-02-07 | 2015-12-01 | Heartland Technology Partners Llc | Wastewater processing systems for power plants and other industrial sources |
US9651038B2 (en) * | 2013-09-27 | 2017-05-16 | Met One Instruments, Inc. | Pulsation suppressing air flow system for an air sampling instrument |
EP3224593A4 (en) * | 2014-11-27 | 2018-10-10 | Provtagaren AB | Pump control for low flow volumes |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3198121A (en) * | 1962-09-26 | 1965-08-03 | Syncroflo Inc | Tankless water pressure system |
AT254377B (de) * | 1965-03-18 | 1967-05-26 | Oemv Ag | Verfahren und Einrichtung zum Nutzbarmachen brennbarer Abgase von Raffinerien oder andern Anlagen |
FR1482123A (fr) * | 1966-04-08 | 1967-05-26 | Siersatom Sa | Appareil de prélèvement d'aérosols |
US3501899A (en) * | 1968-05-02 | 1970-03-24 | Int Chem & Nuclear Corp | Constant-flow air sampler |
US3789902A (en) * | 1971-06-18 | 1974-02-05 | Chemical Construction Corp | Method for concentrating dilute acidic solutions |
US3953152A (en) * | 1973-08-02 | 1976-04-27 | Sipin Anatole J | Regulated fluid pump |
CA1010382A (en) * | 1973-08-29 | 1977-05-17 | Beckman Instruments | Gas stream cleaning system |
US3882861A (en) * | 1973-09-24 | 1975-05-13 | Vital Assists | Auxiliary control for a blood pump |
US3965748A (en) * | 1974-11-18 | 1976-06-29 | Rader Companies, Inc. | Apparatus for automatically measuring particulate emissions in gas flow |
US4063824A (en) * | 1975-08-05 | 1977-12-20 | E. I. Du Pont De Nemours And Company | Chemical dosimeter having a constant flow air sampling pump |
US4091674A (en) * | 1976-06-09 | 1978-05-30 | Amey Guy C | Air sampling pump |
US4123932A (en) * | 1977-05-25 | 1978-11-07 | E. I. Du Pont De Nemours And Company | Dosimeter for monitoring working areas |
-
1978
- 1978-10-02 US US05/948,037 patent/US4257746A/en not_active Expired - Lifetime
-
1979
- 1979-09-20 MX MX179343A patent/MX147570A/es unknown
- 1979-09-24 BR BR7906070A patent/BR7906070A/pt not_active IP Right Cessation
- 1979-09-26 CA CA000336388A patent/CA1116434A/en not_active Expired
- 1979-09-28 AU AU51305/79A patent/AU523661B2/en not_active Ceased
- 1979-09-28 CH CH873979A patent/CH641564A5/de not_active IP Right Cessation
- 1979-10-01 PT PT70261A patent/PT70261A/pt unknown
- 1979-10-01 SE SE7908111A patent/SE452200B/sv not_active IP Right Cessation
- 1979-10-01 FR FR7924418A patent/FR2438291A1/fr active Granted
- 1979-10-01 BE BE0/197413A patent/BE879117A/fr not_active IP Right Cessation
- 1979-10-01 GB GB7933925A patent/GB2033109B/en not_active Expired
- 1979-10-01 IT IT26162/79A patent/IT1193235B/it active
- 1979-10-02 JP JP12727079A patent/JPS5550177A/ja active Granted
- 1979-10-02 DE DE19792939957 patent/DE2939957A1/de active Granted
- 1979-10-02 ES ES484663A patent/ES484663A1/es not_active Expired
- 1979-10-02 NL NL7907321A patent/NL7907321A/nl not_active Application Discontinuation
- 1979-10-10 AR AR278292A patent/AR218559A1/es active
Also Published As
Publication number | Publication date |
---|---|
CA1116434A (en) | 1982-01-19 |
BR7906070A (pt) | 1980-07-15 |
BE879117A (fr) | 1980-04-01 |
GB2033109A (en) | 1980-05-14 |
DE2939957C2 (es) | 1987-08-27 |
DE2939957A1 (de) | 1980-04-10 |
SE452200B (sv) | 1987-11-16 |
MX147570A (es) | 1982-12-14 |
AR218559A1 (es) | 1980-06-13 |
FR2438291A1 (fr) | 1980-04-30 |
AU5130579A (en) | 1980-04-17 |
GB2033109B (en) | 1982-12-22 |
PT70261A (en) | 1979-11-01 |
IT1193235B (it) | 1988-06-15 |
JPS5550177A (en) | 1980-04-11 |
FR2438291B1 (es) | 1984-04-13 |
NL7907321A (nl) | 1980-04-08 |
US4257746A (en) | 1981-03-24 |
IT7926162A0 (it) | 1979-10-01 |
CH641564A5 (de) | 1984-02-29 |
SE7908111L (sv) | 1980-04-03 |
JPS6247250B2 (es) | 1987-10-07 |
AU523661B2 (en) | 1982-08-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES484663A1 (es) | Dosimetro mejorado | |
ES8700436A1 (es) | Unidad de bomba perfeccionada para toma de muestras de aire | |
GB1196257A (en) | Improvements in or relating to Oral Hygiene Apparatus | |
ES8104568A1 (es) | Un dosimetro mejorado | |
ATE14988T1 (de) | Atemgeraet mit motorunterstuetzter luftreinigung. | |
GB1276450A (en) | Wet scrubber system | |
GB1451747A (en) | Separation of skim milk from milk or cream by filtering | |
ES8606974A1 (es) | Aparato para empalmar una instalacion de riego a una tuberiapara agua a presion | |
MY106899A (en) | Metalworking fluid management system | |
FR2406821A1 (fr) | Dosimetre chimique perfectionne | |
GB1496614A (en) | Sampling apparatus | |
GB1471020A (en) | Apparatus for the extraction of particulate material from air laden therewith | |
JPS5211405A (en) | Pump with inducer | |
JPS52129579A (en) | Method and system for measuring clogging of filter | |
JPS5667733A (en) | Measuring apparatus for discharge of corpuscle | |
GB1207580A (en) | Improved filter installation | |
GB1454116A (en) | Clean air supply unit | |
FR2837562B1 (fr) | Dispositif de traitement d'air et procede de traitement d'air mis en oeuvre dans un tel dispositif | |
ES466936A3 (es) | Mejoras introducidas en un dosimetro quimico para uso indi- vidual | |
JPS56104196A (en) | Control device for centrifugal compressor | |
JPS57190609A (en) | Filter apparatus | |
GB593300A (en) | Portable liquid filtering apparatus | |
GB1137904A (en) | Air purifiers | |
SE7405909L (sv) | Silanordning for trogflytande vetskor eller starkt fororenade vetskor | |
GB1472976A (en) | Filtering apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Patent lapsed |
Effective date: 19960401 |