US3666174A - Blower apparatus for air-supported structures - Google Patents

Blower apparatus for air-supported structures Download PDF

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Publication number
US3666174A
US3666174A US876857A US3666174DA US3666174A US 3666174 A US3666174 A US 3666174A US 876857 A US876857 A US 876857A US 3666174D A US3666174D A US 3666174DA US 3666174 A US3666174 A US 3666174A
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US
United States
Prior art keywords
air
passage
housing
chamber
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 - Lifetime
Application number
US876857A
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English (en)
Inventor
Rudolf Brylka
Hans-Jurgen Kleinwachter
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.)
Fried Krupp AG
KAPPERS KLIMATECHNIK AND CO GmbH Co
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3666174A publication Critical patent/US3666174A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical 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
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
    • F24F2011/0004—Control or safety arrangements for ventilation for admittance of outside air to create overpressure in a room

Definitions

  • the present invention relates to an apparatus for supplying air under pressure to a double-walled or inflatable structure and, more particularly, to a portable apparatus of this type.
  • Air-supported structures and buildings have the advantage of being extremely easy to set up. For this reason they are extremely useful in emergency situations where the existing structures and buildings have been somehow rendered unusable. Such is particularly the case in emergency or ABC (atomic, biological, chemical) situations where such problems as radiation and poisonous substances in the air must be dealt with.
  • ABC atomic, biological, chemical
  • Conventional apparatus for supplying fluid under pressure for inflating or stiffening such structures often simply consists of a large blower which sucks in air through some sort of dust filter and delivers it through a conduit to the structure.
  • a housing may be provided, in some cases, to protect the blower and many air conduits often necessary, especially when the air is to be heated.
  • Dirt and other contaminants invariably manage to get into the air passage downstream of the filter, so that the air fed into the area enclosed by the structure of the chamber between the structures walls is contaminated. Even when a housing is provided, there may be leakage, especially in emergency conditions when the device must be transported, so that the output air is contaminated.
  • a more specific object is to provide such an apparatus which overcomes the above-mentioned disadvantages: i.e., which allows virtually no contaminants to get into the air passage downstream of the filter while being readily adaptable for functioning in ABC catastrophes.
  • a pair of filters is provided, in separate branches, in the passage upstream of the blower, each filter with its own inlet port opening externally of the housing.
  • One of these filters is a standard dust filter while the other (although preferably a pair are used in parallel) is an emergency-use ABC filter. This latter ofiers greater resistance to air flow than the normal dust filter.
  • valve means is provided downstream of the dust filter so that, due to lesser air-flow resistance, in an open condition of this valve practically all air flow goes through the dust filter while with the valve closed all goes through the ABC filters.
  • the ABC filters are effectively cut out of use in normal operating conditions, but may be quickly brought into play when desired.
  • a chamber downstream of the blower which opens through small ports into the interior of the housing, through a conduit directly into the chamber between the walls of the structure, and opens into a further chamber housing a heat exchanger.
  • the air passed through and over this heat exchanger is used to heat the space enclosed by the structure.
  • a thermostatically controlled feedback valve in a conduit connected from the heat exchanger chamber back to a point in the passage upstream of the blower serves to control the amount of heating.
  • FIG. 1 is a perspective view, partly broken away, showing an apparatus according to the present invention
  • FIG. 2 is a horizontal sectional plan view of the apparatus
  • FIG. 3 is a vertical section through the apparatus according to the arrow III of FIG. 2;
  • FIG. 4 is a schematic of the fluid-flow path of the apparatus shown in FIGS. 1 -3.
  • the apparatus as also shown in FIGS. 1 3, has a rectangular-parallelopipedal substantially closed housing 5 formed as a single-axle trailer adapted to ride on a pair of wheels 30 pulled behind an automotive vehicle via a hitch 31.
  • An air inlet 6 is formed in the front and wall of the housing 5, with a dust filter 2 directly behind it.
  • This filter is connected to a box 32 forming a chamber connected through a pair of valves 8 to another chamber compartment 10 on which a blower 9 driven by a motor 19 is mounted.
  • the valves 8 each have a control wheel 33 which is accessible through one of several doors 21 in the sidewalls of the housing.
  • the ABC filters 2 have inlets 7 on the topwall of the housing 5 and are each connected at their bases through an outlet conduit 18 to the chamber 18 mounting the blower 9, which is of the axial-input radial-output type.
  • the blower output is connected through a duct 12 to a distributing compartment 11 formed with four small ports 16 which leak air under pressure into the housing 5 so that this latter is under a superatmospheric pressure.
  • a duct 13 leads directly from the distributing compartment 11 to an outlet 14 on the back of the housing 5 and thence a conduit 35 leads to the chamber 28 between the walls of the structure 25.
  • a heat exchanger 4 which rests on the housing bottom wall and which is heated by an oil burner 17 having its own air intake 36 and exhaust chimney 37. After being heated in the heat exchanger 4, the air can either pass out of the housing 5 through an outlet 15 and into the interior 29 of the structure 25, or can be shunted back via a conduit 23 to the chamber 10.
  • a valve 22 in the conduit 23 is coupled to a thermostat 34 to control the amount of heat imparted to the air and has a manual control handle 38 protruding from the side of the housing 5.
  • This thermostat 34 is preferably responsive to the temperature in the area 29, although it can also be responsive to the ambient temperature.
  • Controls 39 are mounted in a switch box 20 on the side of the housing 5.
  • the air pumped into the area 29 is at lower pressure than that pumped into the chamber 28 since the heat exchanger 4 offers increased resistance to the former, and the shunt 23 also drops the pressure somewhat.
  • valves 8 Under normal nonemergency conditions, the valves 8 are wide open so that dust alone is filtered out of the air. Virtually no air is sucked in through the filters 3 since these ofier a relatively great resistance to air flow. In case of an ABC emergency, the valves 8 are closed so that air must be drawn in only through the highly efficient ABC filters 3.
  • the housing 5 Should the housing 5 be damaged, or spring a leak in some manner, the superatmospheric pressure in its interior will prevent any contaminants from entering, even if the air passage formed by the conduits I2, 13, 18 and the chambers 10, 1 1, 4, and 32 should also have leaks.
  • An apparatus for supplying air under pressure to an airsupported structure formed with an air-support chamber comprising:
  • blower means along said passage for drawing air in through said inlet end and supplying air under pressure to said outlet end;
  • valve means includes a thermostat responsive to temperature in said space, said thermostat being operatively connected to said valve means.
  • said ABC filter offers more internal resistance to air flow than said dust filter
  • said valve means including at least one valve between said dust filter and said blower means, said filters being connected in parallel, said inlet end of said passage being an inlet for said ABC filter and a separate inlet for said dust filter.
  • a dust filter mounted on one end wall of said housing at said inlet end of said passage;
  • a dispersing chamber in said passage downstream of said blower means, said dispersing chamber being formed with at least one port constituting said means communicating between the interior of said housing and said passage;
  • thermostatically-controlled valve means in said shunt for closing same.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)
US876857A 1968-12-06 1969-11-14 Blower apparatus for air-supported structures Expired - Lifetime US3666174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1813089A DE1813089C3 (de) 1968-12-06 1968-12-06 Vorrichtung zum Beaufschlagen eines beweglichen, flexiblen Bauwerks mit Luft

Publications (1)

Publication Number Publication Date
US3666174A true US3666174A (en) 1972-05-30

Family

ID=5715457

Family Applications (1)

Application Number Title Priority Date Filing Date
US876857A Expired - Lifetime US3666174A (en) 1968-12-06 1969-11-14 Blower apparatus for air-supported structures

Country Status (8)

Country Link
US (1) US3666174A (de)
BE (1) BE742650A (de)
CH (1) CH492460A (de)
DE (1) DE1813089C3 (de)
FR (1) FR2025508A1 (de)
GB (1) GB1283597A (de)
NL (1) NL6917677A (de)
SE (1) SE362690B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742657A (en) * 1971-10-01 1973-07-03 Irvin Industries Inc Reversible air supported structure
US4452230A (en) * 1980-05-23 1984-06-05 Nelson Richard C Canopy system for a building structure
US4505481A (en) * 1982-07-06 1985-03-19 Australasian Training Aids (Pty.) Ltd. Inflatable target apparatus
US5283051A (en) * 1990-02-01 1994-02-01 Conoco Inc. Reactor vessel discharge
US6032080A (en) * 1995-05-11 2000-02-29 Automated Air Structures, Inc. Method and apparatus for maintaining an air-supported structure
US20040162017A1 (en) * 2003-02-18 2004-08-19 Israel Pe'er Chamber ventilation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386115A (en) * 1942-01-19 1945-10-02 Galvin Mfg Corp Heating system
US2898836A (en) * 1956-12-13 1959-08-11 John A Lockheed Building pressurization system
US3261659A (en) * 1962-02-23 1966-07-19 Garrett Corp Packaged environmental system for decontaminating air

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386115A (en) * 1942-01-19 1945-10-02 Galvin Mfg Corp Heating system
US2898836A (en) * 1956-12-13 1959-08-11 John A Lockheed Building pressurization system
US3261659A (en) * 1962-02-23 1966-07-19 Garrett Corp Packaged environmental system for decontaminating air

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742657A (en) * 1971-10-01 1973-07-03 Irvin Industries Inc Reversible air supported structure
US4452230A (en) * 1980-05-23 1984-06-05 Nelson Richard C Canopy system for a building structure
US4505481A (en) * 1982-07-06 1985-03-19 Australasian Training Aids (Pty.) Ltd. Inflatable target apparatus
US5283051A (en) * 1990-02-01 1994-02-01 Conoco Inc. Reactor vessel discharge
US6032080A (en) * 1995-05-11 2000-02-29 Automated Air Structures, Inc. Method and apparatus for maintaining an air-supported structure
US20040162017A1 (en) * 2003-02-18 2004-08-19 Israel Pe'er Chamber ventilation device

Also Published As

Publication number Publication date
FR2025508A1 (de) 1970-09-11
CH492460A (de) 1970-06-30
SE362690B (de) 1973-12-17
BE742650A (de) 1970-05-14
GB1283597A (en) 1972-07-26
DE1813089A1 (de) 1970-07-09
DE1813089B2 (de) 1973-07-12
DE1813089C3 (de) 1974-01-31
NL6917677A (de) 1970-06-09

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