DE6606293U - INTERMEDIATE TANK AS AN INSTALLATION PART OF A BURNER SYSTEM - Google Patents

Description

Patent attorney "· ■" ·· "" .. *:: * .. ·

Dipl.-Ing. H. straw tavern

8 Munich 60
Musäusstrasse 5

R 3U 25Q / 2Ub Obm 9 .U .1970-SLaCO

Pilade Riello

163-516H

^ M? i '! Λ. ^αΒβ ι ^B f ^s * ^relbun 9 V ^ Schulzanjpr.) Is the last submitted; it differs from def WorliJSJUng of the '' * ■ equally submitted sub-agan, from., The legal "meaning of the deviation lit not QeprOft. The original el "- '.. T" _n ^{U. N} .h ^Q ' ⁿ b "nndtn borrowed in the amliocles. They can be drawn in at any time without Naäweii Fofocopies or film creditors are also supplied with the usual prell «". ! (o.oi} ■. 0 «· ΒΑ« 1> βΙ «Μβ» Ι, CbroiiAini.ii.nt.il. '=' 4

• 'C.Zv / ischGnbehältGj? as a built-in part of a Burner system

The accrual refers to an interim booster as Self-contained component for a burner system for liquids Fuel that is used to deliver the fuel supplied from a lower container to a high-pressure deo burner serves with slope.

Such a known intermediate container is only sur Venting of the line leading to the burner denotes why the container is vented at an upper point. However, this has the disadvantage that for high production of the fuel to the intermediate container a special feed pump is required, which is normally in the lower container is arranged. However, this requires a considerable amount of effort, since the additional pump requires a drive that usually consists of an electric motor, which in turn can be connected to a circuit nUij.

The task is based on the aforementioned to avoid defects and the pumping of the fuel even with a very deep arrangement of the container in a different way without the need for an electrically driven one to ensure a separate pump.

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The object set is achieved according to the innovation in that with the intermediate container mentioned at the beginning, one for connection connected to the high pressure pump and provided for sucking in the fuel supplied from the lower container jet pump is.

Such a connection of the intermediate container with one Jet pump makes it possible to use part of the burner itself ZUP available transport energy of the fuel for operation to use the jet pump located on the intermediate container, which is thus able to reliably deliver the fuel to suck up the lower container »By the fact that the Fuel can then continue to flow from the intermediate container with a gradient to the burner, is also available at the start of burner operationoG enough fuel is available to supply the jet pump with a sufficient amount of fuel to be able to provide a sufficient watch delivery of Ensures fuel from the lower container *

According to a preferred embodiment of the innovation, the pressure line of the jet pump opens into the intermediate vessel at a distance above its bottom, whereby the possibility is provided that can sink to the bottom of the container in the fuel possibly present Vfasseranteile without obtained at the off * jet pump as back to be able to flow back into the lower reservoir. According to a further embodiment of the innovation, it is particularly useful if the jet pump is arranged directly in this intermediate container.

According to another, likewise preferred embodiment of the innovation, the intermediate container is closed, as a result of which the one above the fuel level in the container

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Air cushion in the event that the fuel delivery after the high pressure pump falls below the fuel supply via the jet pump, creating a counter pressure that causes an automatic drop the delivery rate of the jet pump causes.

According to yet another embodiment of the innovation, the inlet-side opening of the high-pressure pump is located leading suction line in the intermediate container at a distance above its bottom, which avoids that. from the intermediate container Water fractions approximately below separated after the high pressure pump the burner could be sucked off.

After further refinements of the innovation it is finally proposed that the intermediate container close to its bottom with a drain cock and is provided on its top wall with a ventilation valve that opens under negative pressure, which is preferably at the same time as a safety valve venting the interior of the intermediate container above a certain internal pressure to the outside can be formed. V7enn from time z \? Time the drain cock open to drain any accumulated v / ater , then the amount of water flowing out via the ventilation valve is always automatically controlled by a corresponding Air volume replaced.

In the drawing, the innovation is illustrated for example; show it:

1 shows an embodiment of the intermediate container according to the invention in connection with a high pressure burner system in a schematic side view :

FIG. 2 shows the closed intermediate container of the system according to FIG. 1 accommodating a jet pump in one compared to Fig. 1 shown enlarged, axially guided to the jet pump vertical section.

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The high pressure burner system shown in Fig. 1 has a high pressure burner 1 with a burner nozzle 2, the the fuel via a pressure line 3 from a high-pressure pump usually arranged in the high-pressure burner i or on it M- is fed «

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trels of a subset of the conveyed, pressurized Fuel is supplied to the nozzle 6 of a jet pump 7, which has a venturi tube, which will be described in more detail below a throttle part 8, which is located directly at the outlet point of the nozzle 6. Through the from the Fuel ejected from the nozzle 6 creates a suction in the jet pump 7, which widens upwards, by multiplying fuel from a container located below the jet pump 7 9 sucked in through a suction line 10 and from the jet pump 7 together with the one that emerged from the nozzle 6 Fuel in a subsequent above the jet pump 7 upwards Pressure line 11 is fed in. Perforated from the tubular wall and on the outlet side Pressure line 11, the fuel enters an intermediate container 12 which receives the jet pump 7 and which is arranged approximately at the same height or slightly higher than the high-pressure burner 1.

In the upper area of the intermediate container 12 there is not only the outlet from the pressure line 11, but also the inlet opening of a suction line 14 which leads from the intermediate container 12 to the inlet point of the high pressure pump ^ . The inlet opening of the suction line V ± is provided with a filter 15 in the usual manner.

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In the top wall of the intermediate container 12 is still a Ventilation valve 16 provided while in the Bereicla of the soil

13 of the intermediate container, a drain cock 17 is arranged. If water components have been carried along with the pumped fuel, then these water components will settle at the bottom 13 of the intermediate container 12 and can be drained from time to time via the drain valve 17. The drained Liquid is replaced by air flowing in via the ventilation valve 16. There is an air leak but not possible from the ventilation valve 16.

The suction line 10 also has a step-side end at its end located near the bottom of the intermediate container 9 Filter 18 on.

From Fig. 2 go structural details of the intermediate container 12 and the parts arranged therein. At the bottom 13 of the intermediate container 12 there is a connection nozzle 30 arranged on the inside of the inlet end of the suction line 14 connects to it, while the high-pressure burner on the outside 4 leading remaining part of the suction line 14 (cf. Fig. 1) is connected »The outer part of the suction line

14 can be provided in the usual way with a thread Ansenlußnipel of the AnschXu.istutzens 30 connected be. The inlet end of the suction line 14 is closed at 31 and has a row of radial holes 32. via the end part of the suction pipe which has the holes 32 14, a filter 15 is pushed in the usual way and held in place on the suction line 1 ** by means of elastic rings 3 3.

The jet pump is also on the floor 13 of the intermediate container 12 7 arranged, the outside of which is essentially cylindrical

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Venturi tube 34 is inserted into a bore of a housing 36 and sealed therein by means of a sealing ring 35. Below of the sealing ring 35 is the Venturi tube 34 with his Throttle point 8 leading radial bores 37 provided to the around the bore of the housing 36 receiving the Venturi tube 34 is widened to form an annular chamber 38. This annular chamber 3 stands over a channel 39 with a, also at the end 13 provided connection nipple 40 in connection to which the suction line 10 (see Fig. * 1) is connected *

In the bore of the housing 3 6 that receives the Venturi tube 34, at the point of a lower inner annular shoulder The nozzle 6 of the jet pump 7 is inserted via a seal 41 and is screwed into the housing 36 via the Venturi tube 34 pressed tightly against said inner ring shoulder. In the tapered end adjoining the nozzle 6 downwards a pipe connection screw 42 is screwed into the bore of the housing 36 from the outside of the intermediate container 12, Via which the return line 5 or a branched off from the pressure line 3 of the high pressure burner 1 (not line shown) is connected.

The pressure line 11 is connected to the upper end of the Venturi tube 34, which is open at the top and close to its upper end The end is provided with a number of radial bores 43.

The pressure line 11 protrudes so high into the intermediate container 12 in that the bores 43 were at a considerable distance above the bottom 3.3; en.

l.'cnn t'.ie high-pressure pump 4 is put into operation wirci, v; ird Fuel is initially drawn in from the intermediate container 12 through the suction line 14. Part of the funded fuel

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The substance arrives at the burner nozzle 2 and is _{sprayed there 3} while a further part of the fuel is conveyed through the return bypass 5 to the jet nozzle 6, where the jet inlet 7 starts up. As a result, additional fuel is conveyed from the container 9 by the jet pump 7 through the suction line 10 and the jet pump 7 via the pressure line Ii into the intermediate container 12, from the jet pump 7 down into the pressure line

11 and the intermediate container 12, the fuel injected from the nozzle 5 is also conveyed. As a result, after the high pressure pump ¹ I out weggeförderte fuel quantity jev / Eils durcä into the required through the pressure line 11 into the intermediate tank 12 the fuel quantity replaced.

Should the consumption of the high pressure burner 1 be slightly lower than that through the pressure line 11 into the intermediate container 12 be the amount of fuel delivered, then arises in the intermediate container 12 an overpressure above the fuel level, due to which the delivery rate of the jet pump 7 is reduced will. Due to the closed design of the intermediate container

12 an automatically operating regulation is thus made possible, which the delivery rate of the jet pump 7 to the fuel consumption of the pressure burner 1 adapts.

Must be expected to turn around, ^ ate about water with the Fuel is fed into the intermediate container 12, then the drain cock 17 is only needed from time to time to be opened until the accumulated V.'asser has expired. The expired. Liquid is then replaced by air, through the vent valve 16 into the intermediate container 12 can flow in.

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The innovation is not bound to all details of the described and illustrated exemplary embodiments. For example, the ventilation valve 16 can also be designed as an upper pressure safety valve ₃ which ventilates the interior of the container 12 to the outside when a certain internal pressure is exceeded. There are also other modifications and configurations of the described and illustrated embodiment possible without thereby departing from the scope of protection laid down in the claims below.

Protection claims:

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Claims (7)

ti • I · - 9 - Claims for protection 1 «Intermediate container as an independent built-in part for a burner system for liquid fuels, which is used to dispense the fuel supplied from a lower container to a high-pressure pump of the burner with a gradient is used, marked by that with the intermediate container (12) one for connection to the high pressure pump (4) and for sucking in the from the lower container (9) supplied fuel jet pump (7) is connected. 2. intermediate container according to claim I _9, characterized in that the pressure line (11) of the jet pump (7) opens into the intermediate container (12) at a distance above its bottom (13). 3. intermediate container according to claim 1 or 2, characterized in that that the jet pump (7) is arranged in it. 4. intermediate container according to one of the preceding claims, characterized in that the intermediate container (12) is closed. 5. Intermediate container according to one of the preceding claims, characterized in that the inlet-side opening of the suction line (I ¹ O in the intermediate container (12) leading to the cooking pressure pump (4) lies at a distance above its bottom (13). 6. intermediate container according to one of the preceding claims, characterized in that the intermediate container (12) is provided with a drain cock (17) near its bottom (13). 6606293 23rd IZ 70 »» T - 10 - 7. Intermediate container according to one of the preceding claims, characterized in that the intermediate container (12) at its Beck wall is provided with a ventilation valve ClG) that opens when there is negative pressure. Z. Intermediate container according to claim 7, characterized in that the ventilation valve (15) is designed at the same time as a safety valve which opens from a certain overpressure and thus ventilates the interior of the Swiss-made container (12) to the outside. 860629323.1170