EP2264369A1 - Sicherheitsvorrichtung für einen ölbefeuerten Kessel - Google Patents

Sicherheitsvorrichtung für einen ölbefeuerten Kessel Download PDF

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Publication number
EP2264369A1
EP2264369A1 EP09156534A EP09156534A EP2264369A1 EP 2264369 A1 EP2264369 A1 EP 2264369A1 EP 09156534 A EP09156534 A EP 09156534A EP 09156534 A EP09156534 A EP 09156534A EP 2264369 A1 EP2264369 A1 EP 2264369A1
Authority
EP
European Patent Office
Prior art keywords
oil
buffer tank
water
safety device
supply
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Withdrawn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
EP09156534A
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English (en)
French (fr)
Inventor
designation of the inventor has not yet been filed The
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.)
Alley Enterprises Ltd
Original Assignee
Alley Enterprises 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
Application filed by Alley Enterprises Ltd filed Critical Alley Enterprises Ltd
Priority to EP09156534A priority Critical patent/EP2264369A1/de
Publication of EP2264369A1 publication Critical patent/EP2264369A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/08—Preparation of fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/05083—Separating watery fractions from liquid fuel

Definitions

  • the present invention relates to an oil supply safety device for the delivery of oil to an oil fired boiler.
  • an oil supply safety device for the delivery of oil to an oil fired boiler for fitting between an oil supply tank and the oil fired burner, the device comprising:
  • control means provides a warning of the level of the water reaching a height somewhat less than the critical height in the buffer tank.
  • the householder wishes to have a warning on the onset of a problem before the system us shut down. This allows the householder to take corrective action.
  • the control means for causing the oil supply to the buffer tank to be shut off comprises a pair of spaced-apart electrodes operatively connected to an electrical circuit forming part of the control means whereby, on water rising to immerse both of the electrodes, the electrical circuit is made and the electrical supply is shut off.
  • electrodes is particularly advantageous, as they are relatively inexpensive and almost foolproof.
  • the buffer tank comprises a pair of chambers, namely, an oil inlet chamber and an oil outlet chamber and an oil filter interspersed between the chambers, whereby the oil is filtered on being delivered from the inlet chamber to the outlet chamber for subsequent delivery to the oil fired burner.
  • a de-aerator is mounted in the buffer tank.
  • a temperature sensing device is mounted remote from the boiler and operatively connected to the control means whereby on the temperature rising above a predetermined level, the electrical supply is shut off, thus closing the oil supply off and shutting down the oil fired burner.
  • a waste water tank connected via a pump to an inlet adjacent the bottom of the buffer tank whereby, on the water level reaching a predetermined depth in the buffer tank, the pump is activated to remove a preset quantity of water from the buffer tank.
  • a safety device hereinafter a safety device, indicated generally by the reference numeral 1 and associated control means, namely a control box 2, and associated electrodes, as described below. Strictly speaking, the control means forms part of the overall safety device1.
  • the control box 2 connects power supply lines 8 to an oil-fired burner, not shown, and is in turn fed by lines 9 from a main supply, not shown.
  • a buffer tank 3 divided into two chambers, namely, an inlet chamber 4 and an outlet chamber 5, connected together by a feed pipe 6 between the inlet chamber 4 and the outlet chamber 5, which is fed directly by an oil filter, in this embodiment, a 15 ⁇ filter and identified by the reference numeral 7.
  • the buffer tank 3 has a bottom, identified by the reference numeral 19.
  • a drain-off pipe 25 and associated hand-operated valve 26 are mounted in the bottom 19.
  • An oil supply pipe 10 feeds from an oil supply tank, not shown, through a standard valve 11.
  • the oil supply pipe 10 delivers oil from the oil supply tank to the inlet chamber 4 of the buffer tank 3.
  • a water sensing device mounted in the outlet chamber 5 is a water sensing device, identified generally by the reference numeral 18, comprising a pair of electrodes, namely, a positive electrode 15 and a negative electrode 16 connected to the control box 2.
  • the electrodes 15 and 16 are spaced apart a distance from the bottom 19 of the buffer tank 3. The distance chosen is one which, when the depth of water reaches that height in the buffer tank 3, a warning should be given to the householder of the need to carry out maintenance by removing the water from the buffer tank 3.
  • the electrodes 15 and 16 are connected to a suitable electrical circuit and audible and visual warning devices. It will be appreciated that when the electrodes 15 and 16 are no longer immersed in oil, but in a liquid, namely, water, which is conductive, a circuit will be made between them and then depending on the control circuit, necessary operations may take place which, in this case, as mentioned above, is simply the delivery of a warning to the householder. These are conventional and do not need to be described or illustrated as they are well known to most industries.
  • An oil burner supply pipe 12 feeds, via a motorised valve 13 from the outlet chamber 5, an oil burner mounted in an oil fired boiler, neither of which are shown.
  • the motorised valve 13 could, for example, be a normally open solenoid valve.
  • a further electrode 17 which can, it would be appreciated, be either positive or negative is mounted in the buffer tank 3 above the electrodes 15 and 16.
  • the height of the electrode 17 above the bottom 19 is chosen as a critical depth for water in the buffer tank 3. Again, as before, when the depth of water rises to reach the electrode 17, the electrical circuit to which it is connected is made. In this case, it is a critical depth and a signal is sent from the control box 2 to cut off the electrical supply. This disconnection of the electrical supply causes the motorised valve 13 to shut down and the oil burner to stop operating.
  • a temperature sensing device 22 provided by a thermostat or thermistor, is mounted in the boiler house or externally thereof and again is not shown, which is in turn connected to the control board 2, whereby, on the thermostat 22 reaching a critical temperature, the electrical supply is cut off.
  • a temperature sensing device 22 provided by a thermostat or thermistor
  • the control board 2 which is in turn connected to the control board 2, whereby, on the thermostat 22 reaching a critical temperature, the electrical supply is cut off.
  • suitable fire alert messages both audible and visual. This will require the use of additional fire alerting devices.
  • the drain-off pipe 25 facilitates the removal of water during maintenance or indeed may be used, in certain circumstances, when the warning is given of the water having reached the two electrodes 15 and 16. In this way, the water never reaches the critical depth causing the electrical supply to be cut off due to the presence of water in the buffer tank 3.
  • FIG. 2 there is illustrated an alternative construction of safety device, indicated generally by the reference numeral 28. Parts similar to those described with reference to the previous drawings are identified by the same reference numerals.
  • the electrode 17 has been removed. It will be appreciated that equally, one of the electrodes 15 and 16 could have been omitted.
  • a waste water tank 30 fed by a waste water pipe 31 and a pump 32 from a bottom of the outlet chamber 5 of the buffer tank 3.
  • the pump 32 is activated and a preset quantity of water is delivered out of the outlet chamber 5 into the waste water tank 30.
  • the capacity of the waste water tank 30 may be chosen so that, under normal usage, it may only require to be emptied during planned maintenance.
  • the construction of the waste water tank 30 may be so chosen as to comply with all disposal regulations.
  • the water in the buffer tank may be disposed of, such as, for example, the use of some form of bleed-off valve connected to a much larger container, whereby, on the volume of water in the buffer tank exceeding a predetermined amount and hence an excess weight, the water would trickle out the buffer tank into a separate removable water storage tank. It could also just be a simple additional tank mounted below the buffer tank and connected thereto by a pipe and associated valve.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
EP09156534A 2009-03-27 2009-03-27 Sicherheitsvorrichtung für einen ölbefeuerten Kessel Withdrawn EP2264369A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09156534A EP2264369A1 (de) 2009-03-27 2009-03-27 Sicherheitsvorrichtung für einen ölbefeuerten Kessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09156534A EP2264369A1 (de) 2009-03-27 2009-03-27 Sicherheitsvorrichtung für einen ölbefeuerten Kessel

Publications (1)

Publication Number Publication Date
EP2264369A1 true EP2264369A1 (de) 2010-12-22

Family

ID=41059839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09156534A Withdrawn EP2264369A1 (de) 2009-03-27 2009-03-27 Sicherheitsvorrichtung für einen ölbefeuerten Kessel

Country Status (1)

Country Link
EP (1) EP2264369A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345978A (en) * 1965-08-26 1967-10-10 John W Yates Liquid fuel feeding system
US3485370A (en) * 1967-11-20 1969-12-23 Matsushita Electric Ind Co Ltd Liquid-fuel-water separator for liquid fuel burners
US4539109A (en) * 1983-02-01 1985-09-03 Davco Manufacturing Corporation Drain system for fuel processor apparatus
US4960513A (en) * 1989-08-21 1990-10-02 Young James T Separator for liquids of different densities
US5378353A (en) * 1991-04-03 1995-01-03 Koch; Berthold Arrangement for the separation of floating oil from oil/water mixtures
US20080150552A1 (en) * 2006-12-21 2008-06-26 Straub Robert D Apparatus and method for sensing water within a fuel-water separator assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345978A (en) * 1965-08-26 1967-10-10 John W Yates Liquid fuel feeding system
US3485370A (en) * 1967-11-20 1969-12-23 Matsushita Electric Ind Co Ltd Liquid-fuel-water separator for liquid fuel burners
US4539109A (en) * 1983-02-01 1985-09-03 Davco Manufacturing Corporation Drain system for fuel processor apparatus
US4960513A (en) * 1989-08-21 1990-10-02 Young James T Separator for liquids of different densities
US5378353A (en) * 1991-04-03 1995-01-03 Koch; Berthold Arrangement for the separation of floating oil from oil/water mixtures
US20080150552A1 (en) * 2006-12-21 2008-06-26 Straub Robert D Apparatus and method for sensing water within a fuel-water separator assembly

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