EP0116059A1 - Appareil nettoyeur a vapeur - Google Patents

Appareil nettoyeur a vapeur

Info

Publication number
EP0116059A1
EP0116059A1 EP83902425A EP83902425A EP0116059A1 EP 0116059 A1 EP0116059 A1 EP 0116059A1 EP 83902425 A EP83902425 A EP 83902425A EP 83902425 A EP83902425 A EP 83902425A EP 0116059 A1 EP0116059 A1 EP 0116059A1
Authority
EP
European Patent Office
Prior art keywords
regulator
air
gas
water
inter
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.)
Withdrawn
Application number
EP83902425A
Other languages
German (de)
English (en)
Other versions
EP0116059A4 (fr
Inventor
Manufacturing Pty. Ltd. Fradic
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.)
FRADIC MANUFACTURING PTY Ltd
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
Publication of EP0116059A1 publication Critical patent/EP0116059A1/fr
Publication of EP0116059A4 publication Critical patent/EP0116059A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam

Definitions

  • the present invention relates to steam cleaning appar ⁇ atus of the type in which combustion of fuel within a chamber is employed to heat water sufficiently to pro ⁇ cute a continuous stream of steam.
  • British Patent No. 773048 describes apparatus which con ⁇ sists of a combustion chamber into which a mixture of fuel and air is burnt after ignition by a spark plug, this combustion chamber being surrounded by a jacket into which is fed a mixture of water and detergent, or some other cleaning liquid.
  • the combustion chamber and the cleaning fluid jacket share a common outlet pipe from which there flows a mixture of the hot combustion prod ⁇ ucts and vaporized cleaning liquid.
  • British Patent No. 1449483 describes an apparatus for steam cleaning comprising a combustion chamber having an inlet passage for a combustible fluid and an exit passage for exhaust gases, said combustion chamber co ⁇ operating in heat exchange relationship with a second chamber having an inlet port for the admission of water and an outlet port for steam, said outlet port and exit passage communicating at a mixing region with a fluid conduit, and means for admitting a cleaning fluid to said fluid conduit downstream of said mixing region.
  • the amount of gas introduced into the mixture be controlled within fairly close tolerance.
  • the pressure of the gas introduced be slightly higher than the pressure of air so as to obtain reliable combustion.
  • problems can arise if the air pressure fluctuates. For example if compressed air is supplied from a compressor the air pressure supplied to the steam cleaning apparatus can drop if the compressor is used to supply compressed air for other purposes. Additionally, problems can also occur if the gas pressure fluctuates. For example, on cold days the pressure of the gas in a bottle can be lowered rapidly because, as gas is drawn off, the rate of gas generation from liquid in the bottle is reduced.
  • OMH OMH
  • a steam cleaning apparatus comprising a combustion chamber having an inlet means arranged to be connected to a source of compressed air and a source of compressed combustible gas, and exhaust gas outlet means, a further inlet means arranged to be connected to a supply of water, said further inlet means being arranged to supply water to a heat receiving location in or adjacent to the combustion chamber so that the water can be heated by combustion of the air and combustible gas, said apparatus further comprises a respective supply line for gas, air and water and each supply line containing a fluid pressure regulator having an active side and a passive side, characterised in that inter-regulator conduit means is provided for applying the regulated fluid pressure from the passive side or sides of one or more regulators to the active sides of at least two regulators.
  • means is provided for introducing a cleaning substance into the aqueous fluid.
  • the regulation means is arranged such that the water pressure is below the air pressure whilst the
  • gas pressure is above the air pressure.
  • FIGURE 1 is a schematic drawing of a steam cleaning ap ⁇ paratus in accordance with the present invention
  • FIGURE 2 is a sectional view of a fluid pressure regulator used in the apparatus of Figure 1;
  • FIGURES 3 to 11 show schematically various alternative regulator systems to the one shown in Figure 1. DESCRIPTION OF THE INVENTION
  • FIG. 1 of the drawings there is shown a steam cleaning apparatus comprising an air supply inlet line 10, a gas supply inlet line 12 and a water supply inlet line 14.
  • the line 10 contains a non-return valve 16 and a fluid pressure regulator 18.
  • the line 12 contains a fluid pressure regulator 20 and the line 14 contains a fluid pressure regulator 22.
  • a suitable regulator for use in the present invention is the SMC air regulator model AR200.
  • the regulators 18 are the SMC air regulator model AR200.
  • O PI_ and 20 are of the general type shown in Figure 2 which comprises a housing 24, and adjustment spindle 26, a locknut 28, a diaphragm 30, a spring 32 between the spindle 26 and the diaphragm 30.
  • the spindle 26 is threaded and is threadedly engaged with the housing 24.
  • a pin 31 extends downwardly from the diaphragm 30 to a disc 33 urged upwardly by a small counter spring 35.
  • the disc 33 is arranged to be urged into engagement with a valve seat by the spring 35 when there is no exerted pressure on the diaphragm 30. In this position no gas can pass through the regulator.
  • Fluid passing between the ports 34 and 36 must pass between the valve seat and the disc 33 which path governs the outlet pressure to a desired level.
  • the level of the outlet pressure is controlled by the position of the diaphragm 30 which controls the position of the disc 33 by means of the pin 31.
  • the diaphragm is lowered (as seen in Figure 2) by exerted pressure, such as from the spring 32, the governed gas pressure of the outlet port is increased.
  • the regulator shown in Figure 2 is modified by having a port 38 on the side of the diaphragm 30 remote from the ports 34 and 36.
  • the port 38 is connected by a conduit, in use, to another regulator so that the regulated fluid pressure of that other regulator is applied to the diaphragm 30 in addition to the pressure of the spring 32.
  • the side of a regulator which has means arranged to act on a dia ⁇ phragm to open same will be called the active side while the opposite side of a regulator will be called the passive side.
  • the regulator 22 is similar to the regulators 18 and 20 except that the spindle 26, locknut 28 and spring 32 are dispensed with.
  • the pressure exerted on the diaphragm 30 is solely fluid pressure.
  • the lines 10 and 12 feed through their respective regulators into a block 40 containing a mixing chamber 42.
  • the mixing chamber 42 contains an air non-return valve 44 and a gas non-return valve 46.
  • the air and gas are admixed in use, in the chamber 42 and the mixture so obtained passes along a mixture line 48 to a combustion chamber 50.
  • the line 48 is provided with a non-return valve 52.
  • the combustion chamber 50 contains an inspection plug 54 to enable the interior of the combustion chamber 50 to be inspected if necessary.
  • the conduit 14 passes through the regulator 22 and then into the combustion chamber 50.
  • the line 14 projects further into the combustion chamber 50 than the line 48, that is the line 14 has its exit downstream of the exit from the line 48.
  • the combustion chamber 50 is also provided with a downstream tapered portion 56 having a fine nozzle 58 at its outer end.
  • the line 48 contains an outlet valve (not shown) which, when opened allows flow of combustible gas-air mixture.
  • the combustion chamber 50 has a transistorised ignitor
  • the box 60 mounted on it.
  • the box 60' has a control means such as a button to enable it to be energised and a power supply such as a small battery.
  • the box 60 is connected to a sparking plug 62 mounted in the combustion chamber 50, by means of an H.T. lead 64.
  • the apparatus further comprises a bottle 66 arranged to contain a supply of liquid cleaner.
  • the bottle is con ⁇ nected via a line 68 to the air inlet line 10 so that the contents of the bottle 66 are under pressure.
  • the bottle 66 has an outlet line 70" leading into the down ⁇ stream tapered portion 56 of the combustion chamber 50.
  • the line 70 contains a tap 72 to control supply of liquid cleaner.
  • the regulator 18 has a conduit 72 leading from its pas ⁇ sive side to the active side of the diaphragm 22, and a conduit 74 leading from its passive side to the active side of the diaphragm 20.
  • a further conduit 76 leads from the passive side of the regulator 18 to an air pressure gauge 78 which indicates the regulated pressure of the air entering the mixing chamber 42 and the pressure of air in the conduits 72 and 74.
  • a conduit 80 leads from the passive side of the regulator 20 to the active side of the regulator 18.
  • a conduit 82 leads from the passive side of the regulator 20 to a gas pressure gauge 84.
  • the gas pressure gauge 84 indicates the regulated gas pressure of the regulator 20 and the pressure in the conduit 80.
  • the regulators 18 and 20 are set to a particular desired regulated pressure by adjusting the positions of the spindles 26 by turning same in their threaded mountings. Thus, the pressure exerted on the diaphragms 30 by the springs 32 is adjusted.
  • the gas regulator 20 spindle is turned in slightly more than the air regulator 18 spindle so that the regulated gas pressure is always slightly higher than the regulated air pressure.
  • the lines 10 and 12 are connected to sources of pressurised air and gas respectively.
  • the line 14 is connected to a source of pressurised water such as the mains water supply. Valves in the water line 14 and air line 10 can be opened to allow the pressurised fluid to reach the regulators 18 and 22 respectively.
  • a valve in the gas line 12 is then opened.
  • the outlet valve in the line 48 is then opened to allow flow of combustible mixture through to a combustion chamber.
  • the ignitor box 60 is energised to ignite the ' combustible mixture from the mixing chamber 42 and the line 48.
  • the regulated air pressure acts on the active side of the diaphragm of the regulator 22 through the line 72 so enabling water to pass along the line 14 into the combustion chamber 50.
  • the regulated air pressure acts on the active side of the diaphragm of the regulator 22 through the line 74. This means that the gas flow through the regulator 20 is increased to a -desired level under normal operating conditions. However, should the regulated air pressure fall for any reason, then the pressure acting on the diaphragm in the regulator 20 will also be decreased. Thus, the rate of gas flow is decreased. Thus, the com ⁇ bustible mixture remains at roughly the same composition even if the available air pressure falls.
  • the pressure on the diaphragm in the regulator 22 decreases so that the amount of water passing to the combustion chamber 50 is lowered.
  • the possiblility of a reduction in the amount of combustible mixture is compensated for by a fall in the amount of water supplied.
  • the regulated gas pressure is applied to the active side of the diaphragm of the regulator 18 by the conduit 80.
  • the regulated air pressure also falls to maintain the composition of the combust ⁇ ible mixture within useable limits.
  • a fall in gas pressure reduces pressure on the diaphragm of the regulator 18 and leads to a fall in air pressure.
  • a fall in air pressure leads to a reduction in pressure on the diaphragms of the regulators 20 and 22 and so leads to a reduction in gas pressure and water pressure.
  • a fall in gas pressure or air pressure will reduce all three pressures but a fall in water pressure will not affect the air and gas pressures.
  • the arrange ⁇ ment is particularly useful in locations where the water pressure is reliable and does not fluctuate, but when the air pressure and/or gas pressure have a tendency to fluctuate.
  • the regulator 22 contains no spring and is therefore closed completely until pressure is exerted from the regulator 18 along the conduit 72.
  • the regulators 18 and .0 contain springs and so can be arranged so that initially low volumes can initially pass through them. Once the flow is established the pressures act on the active sides of the other diaphragms and the regulators are opened fully.
  • the gas regulator 20 is usually ar ⁇ ranged to have a slightly higher applied spring pressure than the air pressure regulator 18 so that the regulated gas pressure always tends to be higher than the regulated air pressures. Similarly, since the regulator 22 contains no spring, the regulated air pressure tends to be higher than the regulated water pressure.
  • the symbol G represents gas supply
  • the symbol W represents water supply
  • the symbol M represents supply of gas-air mixture.
  • FIG 3 there is shown a schematic regu ⁇ lation system for a steam cleaner of the present invention in which the regulated gas pressure acts on the active side of the air regulator and the water regulator so that the latter two pressures drop correspondingly if there is a decrease in gas pressure.
  • the regulated air pressure acts on the active side of the gas regulator to drop the gas pressure if the air pressure drops.
  • the gas pressures are unaffected by water pressure and this arrangement is particularly useful when the gas pressure tends to fluctuate.
  • the arrangement shown in Figure 4 has the regulated water pressure acting on the air regulator while the regulated air pressure acts on the water regulator and the gas reg ⁇ ulator. This arrangement is particularly useful where there is a stable gas supply but where the water pressure and air pressure can fluctuate.
  • the arrangement shown in Figure 5 is similar to that shown in Figure 4 except that the regulated gas pressure acts on the water regulator so that a drop in gas pres ⁇ sure would lower the water pressure but a drop in air pressure would not directly affect the water pressure. However, the water pressure would be indirectly affected by a drop in air pressure by the reduced air pressure acting on the gas regulator.
  • the regulated gas pressure acts on the air regulator
  • the regulated air pressure acts on the water regulator
  • the regulated water pressure acts on the gas regulator.
  • the arrangement shown in Figure 8 has the regulated air pressure acting on the gas and water regulators .
  • a drop in air pressure would lead to a drop in gas and water pressures but a drop in gas pressure or water pressure would not affect other pressures.
  • This arrangement is useful where there is an assured supply of gas and water but the air supply is subject to fluctuations.
  • VIPO supplies are reliable but the water supply is subject to fluctuation.
  • Figure 11 there is shown an arrangement where the regulated gas pressure acts on the air and water regu ⁇ lators. This arrangement is useful where the gas supply is subject to fluctuations but the air and water supplies are reliable.
  • combustion chamber 50 could have another chamber in heat exchange relation to it which other chamber would have the water supply fed to it
  • water regulators have been described without springs but it is to be understood that they can include springs or other means for adjusting the pressure on the diaphragm apart from fluid pressure.

Landscapes

  • Control Of Fluid Pressure (AREA)

Abstract

Appareil nettoyeur à vapeur comprenant une chambre de combustion (50) dotée d'un mécanisme d'admission (48) disposé pour être relié à une source d'air comprimé et à une source de gaz combustible comprimé, d'un mécanisme de sortie des gaz d'échappement (58), d'un autre mécanisme d'admission (14) disposé pour être relié à une alimentation d'eau, ledit autre mécanisme d'admission (14) étant disposé pour fournir de l'eau à un emplacement récepteur de chaleur dans la chambre de combustion (50) ou à côté d'elle, de façon que l'eau puisse être chauffée par la combustion de l'air et du gaz combustible, ledit appareil comprenant en outre des lignes d'alimentation respective (12, 10, 14) de gaz, d'air et d'eau, chaque ligne d'alimentation (12, 10, 14) contenant un régulateur de pression de fluide (20, 18, 22) possédant un côté actif et un côté passif, avec pour caractéristique que le mécanisme de conduit inter-régulateur (72, 74, 80) est prévu pour appliquer la pression de fluide régulée du (des) côté(s) passif(s) d'un régulateur (20, 18, 22) ou plus aux côtés actifs d'au moins deux régulateurs (20,18, 22).
EP19830902425 1982-08-06 1983-08-05 Appareil nettoyeur a vapeur. Withdrawn EP0116059A4 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU5240/82 1982-08-06
AUPF524082 1982-08-06
AU6271/82 1982-10-08
AUPF627182 1982-10-08

Publications (2)

Publication Number Publication Date
EP0116059A1 true EP0116059A1 (fr) 1984-08-22
EP0116059A4 EP0116059A4 (fr) 1987-01-22

Family

ID=25642567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830902425 Withdrawn EP0116059A4 (fr) 1982-08-06 1983-08-05 Appareil nettoyeur a vapeur.

Country Status (2)

Country Link
EP (1) EP0116059A4 (fr)
WO (1) WO1984000801A1 (fr)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents have been disclosed *
See also references of WO8400801A1 *

Also Published As

Publication number Publication date
EP0116059A4 (fr) 1987-01-22
WO1984000801A1 (fr) 1984-03-01

Similar Documents

Publication Publication Date Title
US7905722B1 (en) Control of an adjustable secondary air controller for a burner
US7954479B2 (en) Fuel supply device for gas engine
NO991002L (no) For-fordampende og for-blandende brenner for flytende brennstoff
US8061330B2 (en) Fuel supplying apparatus for gas engine
EP0116059A1 (fr) Appareil nettoyeur a vapeur
AU1824583A (en) Steam cleaning apparatus
US1539630A (en) Pressure-balancing valve for oxyacetylene welding
US4337619A (en) Hot water system
CA1220103A (fr) Machine de nettoyage a la vapeur
CA2541606C (fr) Commande d'un controleur d'air secondaire reglable pour bruleur
US3498029A (en) Fuel feed system
US2258003A (en) Carburetor device
US1762678A (en) Oil burner
US636162A (en) Carbonating apparatus.
JPS6097067A (ja) 作用物質吐出装置
EP0118495A1 (fr) Corps de chauffe a immersion dans un liquide
US2255929A (en) Thermally controlled oil burner
US1585443A (en) Combination oil and gas carburetor
US1752167A (en) Apparatus for preparing hydrocarbon mixtures for combustion
JPH0968123A (ja) 燃料昇温装置
ATE197089T1 (de) Flüssiggasverbrennungsvorrichtung
US1046718A (en) Exhaust-pressure regulator.
US639197A (en) Pressure device for burners.
KR100514300B1 (ko) 산소와 수소 발생기를 위한 불꽃 조정장치
US1024845A (en) Steam-generator.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19840329

AK Designated contracting states

Designated state(s): BE DE FR GB NL

A4 Supplementary search report drawn up and despatched

Effective date: 19870122

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FRADIC MANUFACTURING PTY. LTD.

17Q First examination report despatched

Effective date: 19880902

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19890314