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WO1998041858A3 - Fume extraction apparatus - Google Patents

Fume extraction apparatus Download PDF

Info

Publication number
WO1998041858A3
WO1998041858A3 PCT/GB1998/000780 GB9800780W WO9841858A3 WO 1998041858 A3 WO1998041858 A3 WO 1998041858A3 GB 9800780 W GB9800780 W GB 9800780W WO 9841858 A3 WO9841858 A3 WO 9841858A3
Authority
WO
WIPO (PCT)
Prior art keywords
filters
air
fumes
warning signal
detector
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.)
Ceased
Application number
PCT/GB1998/000780
Other languages
French (fr)
Other versions
WO1998041858A2 (en
Inventor
Neil Edward Flynn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OK International Ltd
Original Assignee
OK International Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GBGB9705281.5A external-priority patent/GB9705281D0/en
Priority claimed from GBGB9718288.5A external-priority patent/GB9718288D0/en
Application filed by OK International Ltd filed Critical OK International Ltd
Publication of WO1998041858A2 publication Critical patent/WO1998041858A2/en
Publication of WO1998041858A3 publication Critical patent/WO1998041858A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G01N33/0014—Sample conditioning by eliminating a gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance
    • 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
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
    • G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

Fume extraction apparatus comprises filters (4, 5, 6) to remove fumes from air, and a semi-conductor type detector (13) which is located downstream of the filters to detect fumes in the filtered air and which is adapted to issue a warning signal to indicate the presence of fumes. Control means (15) calibrates the apparatus under one or more known fume conditions so as to trigger said warning signal at a predetermined level of fumes. A sample of air is tested on a continuous basis by drawing air via conduits (10, 11) through a chamber (12) containing the detector (13). Filters (4, 5, 6) remove particles from the air, and a pressure detector (16) detects the drop in pressure across the filters and issues a warning signal for a predetermined pressure drop corresponding to a predetermined level of blockage of the filters.
PCT/GB1998/000780 1997-03-14 1998-03-16 Fume extraction apparatus Ceased WO1998041858A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9705281.5A GB9705281D0 (en) 1997-03-14 1997-03-14 Gas monitoring transducer
GB9705281.5 1997-03-14
GBGB9718288.5A GB9718288D0 (en) 1997-08-29 1997-08-29 Fume extraction apparatus
GB9718288.5 1997-08-29

Publications (2)

Publication Number Publication Date
WO1998041858A2 WO1998041858A2 (en) 1998-09-24
WO1998041858A3 true WO1998041858A3 (en) 1998-12-03

Family

ID=26311183

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/000780 Ceased WO1998041858A2 (en) 1997-03-14 1998-03-16 Fume extraction apparatus

Country Status (1)

Country Link
WO (1) WO1998041858A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795510B1 (en) * 1999-06-24 2001-08-03 Air Liquide INSTALLATION FOR ANALYZING THE ATMOSPHERE OF A BRAZING OR TINNING ENCLOSURE USING A METAL ALLOY
DE60035213T2 (en) * 1999-11-05 2007-09-27 Delaware Capital Formation, Inc., Wilmington FLUE EXTRACTION DEVICE AND ARRANGEMENT
CA2648616A1 (en) 2006-04-21 2007-11-01 Tomatec Oil leakage detector
JP6200223B2 (en) * 2013-07-01 2017-09-20 アズビル株式会社 Hume food management system and management method
CN106338587A (en) * 2016-10-28 2017-01-18 厦门大学嘉庚学院 Device for monitoring molecular-state pollutants in waste gas and control method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485666A (en) * 1981-09-11 1984-12-04 Coal Industry (Patents) Limited Gas analyzer
US4751501A (en) * 1981-10-06 1988-06-14 Honeywell Inc. Variable air volume clogged filter detector
US5036754A (en) * 1990-04-17 1991-08-06 Diversitech Equipment & Sales (1984) Ltd. Autotracking fume extraction exhaust hood

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485666A (en) * 1981-09-11 1984-12-04 Coal Industry (Patents) Limited Gas analyzer
US4751501A (en) * 1981-10-06 1988-06-14 Honeywell Inc. Variable air volume clogged filter detector
US5036754A (en) * 1990-04-17 1991-08-06 Diversitech Equipment & Sales (1984) Ltd. Autotracking fume extraction exhaust hood

Also Published As

Publication number Publication date
WO1998041858A2 (en) 1998-09-24

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