JP3597339B2 - Combustion equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a combustion apparatus of a type in which kerosene or other liquid fuel is supplied to two pot-type burners via one constant oil level unit .
[0002]
[Prior art]
A liquid fuel is supplied to a pot type burner through a leveling device, wherein the leveling device is provided with an on-off valve for opening and closing the fuel inlet, and the on-off valve is used to supply the oil of the leveling device. of the opening provided to face the pot burner (air holes), those to set at a position lower than the opening in the lowest position is known in Japanese Unexamined Utility Model Publication No. 58 over 142 517, moreover two combustion apparatus comprising a pot burner also Ru known Tei.
[0003]
However, since the above-mentioned combustion device is provided with each constant oil level device corresponding to each pot type burner, there is a problem that the installation takes space.
[0004]
In view of this, the present applicant has previously proposed a fuel supply system for supplying fuel to two pot-type burners via one common oil leveling device (Japanese Utility Model Application No. 5-54883).
[0005]
[Problems to be solved by the invention]
When fuel is supplied to two pot-type burners from a common oil leveler, if one pot-type burner is extinguished due to non-ignition or misfire, if the supply of fuel continues, the fuel will accumulate in the pot-type burner. start. Therefore, it has been proposed to return the fuel to the constant oil level via the return pipe. However, when returned to Teiabura surface unit, the fuel is likely to flow to the other pot-type burner side. To prevent this, the constraint that the oil surface height position of the Teiabura surface unit must be set sufficiently lower than a certain opening in the lowest position of the opening provided in the pot-type burner (air holes) there is received Ru non condition. Therefore, an object of the present invention is to provide a combustion device free of such a problem.
[0006]
[Means for Solving the Problems]
The present invention provides a combustion apparatus of a type in which liquid fuel is supplied to a first pot-type burner and a second pot-type burner through a single constant oil level unit in order to achieve the above object. The constant oil leveler is provided with an on-off valve for opening and closing the fuel inflow port. The on-off valve controls the oil level of the constant-level oil leveler to a constant level, and is provided on a first pot type burner. The oil level of the oil leveling device was set at a position lower than the lowest opening in the plurality of openings and the lowest opening in the second plurality of openings provided in the second pot type burner. In the combustion device, a first riser pipe and a second riser pipe respectively connected to the first and second pot-type burners are provided outside the leveler, and the riser pipes are provided on the respective riser pipes. Connect the discharge sides of the first pump and the second pump that suck up fuel , A first return pipe and a second return pipe for connecting the first and second riser pipes and the constant oil level device are provided, and a second riser pipe connected to the second pot type burner is provided. Connecting one end of the second return pipe to a position lower than the lowest opening of the second pot type burner, and connecting the other end of the second return pipe to the second pot type burner. The second return pipe is connected to the first riser pipe which is open to the inside of the constant oil leveler above the oil level at a position lower than the lowest opening and is connected to the first pot type burner. One end of the first return pipe is connected to a position higher than the opening position inside the constant return surface of the first return pipe, and the other end of the first return pipe is connected to the opening position inside the constant return level of the second return pipe. It is characterized in that it is opened to the inside of the constant oil leveler at a lower position.
[0007]
[Action]
The operation of the present invention will be described below with reference to FIG.
For example, if fuel continues to be supplied when one of the first pot-type burners X is extinguished due to unignition or misfire for some reason, the fuel starts to accumulate in the pot-type burner X. Since the return pipe 8 is provided, the fuel returns to the constant oil level unit 1 before flowing out of the burner X from the opening (air hole).
[0008]
Further, the first return pipe 8 because not open within Teiabura surface vessel 1 at a second position lower L4 than the opening position L2 of the return pipe 9, via a second return pipe 9 second pot There is no backflow to the formula burner Y.
[0009]
On the other hand, the second pot burner Y is, similarly when extinguishing with non-ignition or misfire, the fuel returns to Teiabura surface vessel 1 before overflowing from air hole.
[0010]
That is, even if the overflowing fuel attempts to flow back to the first pot-type burner X through the first return pipe 8, the first return pipe 8 communicating with the first pot-type burner X remains in the second pot-type burner X. Since the second return pipe 9 communicating with the type burner Y is connected to the first riser pipe 4 at a position L3 higher than the opening height position L2 inside the constant oil level unit 1 inside the constant oil leveler 1, the overflowed fuel is discharged to the second It does not reach the inside of one pot type burner X.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes one common oil leveling device for supplying fuel to two first and second pot-type burners X and Y, and the two pot-type burners X and Y and the oil leveling device 1 and is Ru Tei provided housed in a common housing 2.
[0012]
The leveling unit 1 is provided with an on-off valve 3 for opening and closing the fuel inlet 1a (shown in FIG. 5 ). The on-off valve 3 controls the oil level L1 of the leveling unit 1 to a constant level. The oil level L1 is the lowest opening (air hole) X1 of the plurality of air holes X1, Y1 as the first and second plurality of openings provided in both pot type burners X, Y, respectively. -a and a position lower than the opening (air hole) Y1-a.
[0013]
As shown in FIG. 2, FIG. 4, and FIG. 6, first and second riser pipes 4 and 5 connected to pot-type burners X and Y are provided outside the constant oil leveling device 1. Discharge sides of first and second pumps 6 and 7 for sucking up fuel from the leveling device 1 are connected to upper portions of the leveling devices 4 and 5, respectively . The two return pipes 8 and 9 are connected.
[0014]
To explain this, the second riser pipe 5 connected to the second pot-type burner Y has a lower position than the air hole Y1-a at the lowest position of the second pot-type burner Y as shown in FIG. lower position to connect the one end of the second return pipe 9, the other end of said return pipe 9, to and lowest position of the second pot type burner Y above side than the oil level L1 of Teiabura surface vessel 1 you communication opening inside Teiabura surface vessel 1 at a lower position L2 than is the air hole Y1-a.
[0015]
Further , one end of the first return pipe 8 is communicated with the first riser pipe 4 connected to the other first pot type burner X at a position L3 higher than the opening position L2 of the second return pipe 9 and in Teiabura surface device 1 inside the lower position L4 than the opening position L2 of the other end the return pipe 9 of said return tube 8, Ru is communication opening to first inner Teiabura surface unit.
[0016]
As shown in FIG. 4, the second riser pipe 5 has an opening 5a-1 at one end connected to the constant oil level device 1 and an opening 5a-2 at the other end connected to the pot-type burner Y. a second horizontal pipe 5a which is disposed on, constituted by a second vertical tube 5b rises from the horizontal pipe 5a, connected to the discharge port side of the second pump 7 from the upper end of the vertical pipe 5 b The second pipe 7a was inserted to supply fuel into the second riser pipe 5.
[0017]
As shown in FIG. 6, the first riser pipe 4 is provided with a first horizontal pipe 4a provided substantially horizontally and having an opening 4a-1 connected to the first pot type burner X, and the horizontal pipe 4a. constituted by a first vertical tube 4b rising from a first riser pipe 4 by inserting the first pipe 6a continuing from an upper end of said vertical tube 4b on the discharge port side of said first pump 6 To be supplied with fuel.
[0018]
Before Stories second return pipe 9, as shown in FIG. 4, the leverage portion of the horizontal pipe 5a, the vertical direction were rise to horizontal pipe 5a and this and communicated thereby to Teiabura surface vessel 1 And the tube 9a.
[0019]
Before SL first return pipe 8, as shown in FIG. 6, the leverage portion of vertical tube 4b, standing on another vertical tube 8a and Teiabura surface vessel 1 continues from the intermediate position of the vertical tube 4b It was composed of the upper and lower direction of the riser pipe 8b to go up.
[0020]
1 shows a heating device 10 of the type person that dissipates heat of combustion of the first pot burner X in the radiator 10a or the like, a second circulating a heat medium fluid between the floor heating radiator 11 a hot water boiler 13 towards type of heating heat exchanger 12 provided in the combustion cylinder of pot type burner Y indicates a combustion device with accommodated in the common housing 2, first and second respective pot formula burner X, Y is fed exhausted with the first and second supply passage 14, 15 through the first and second exhaust passages 16 and 17 connected to a common air supply and exhaust top 18.
[0021]
Reference numerals 19 and 20 denote blower fans interposed in the respective air supply passages 14 and 15 , and reference numeral 21 denotes a pump interposed in a circulation path 22 between the floor heating radiator 11 and the heat exchanger 12. As shown in FIG. 5, the on-off valve 3 is a float valve that opens and closes with a float 23.
[0022]
By the way , when a back wind or the like acts on the air supply / exhaust top 18, the pressure in the first and second pot type burners X and Y temporarily increases, and the fuel is pushed by the pressure and the fuel in each of the pot type burners X and Y. There is a risk that it will not flow inside. To prevent this, on the oil surface of Teiabura surface vessel 1 of the oil surface as well as on the first and second riser pipe 4, the pot burner X through the connecting pipe 24, the pressure in Y Placing was to so that.
[0023]
Although the air holes X1-a and Y1-a are shown as the first and second plural openings, the air holes X1-a and Y1-a of the first and second pot-type burners X and Y will be described. If there is an opening or gap of the insertion hole such as ignition heater at a low position and open it, ing to set the oil level of Teiabura surface vessel 1 it as a reference.
[0024]
The Teiabura surface unit 1 within the opening height of the first return pipe 8, as indicated by a chain line b in FIG. 6, may be under oil level of Teiabura surface unit 1.
[0025]
Next , the operation of the combustion device of the present invention will be described.
[0026]
Under normal combustion conditions, the fuel fed quantitatively at a time by the first and second pump 6,7, first and second pot burner X and Y are the continued combustion.
[0027]
However, when one pot type burner X is extinguished due to non-ignition or misfire for some reason, the fuel starts to accumulate in the pot type burner X, but the first return pipe 8 is interposed at the above-mentioned related position . to reason, fuel Ru is returned to Teiabura surface vessel 1 through said return tube 8 before the fuel out Re overflowing from air hole X1-a provided on the pot burner X. Further , the opening height position L2 inside the leveling unit 1 of the second return pipe 9 connected to the second pot type burner Y is determined by the leveling level of the first return pipe 8 communicating with the pot type burner X. Since it is higher than the opening height position L <b> 4 inside 1, it does not flow back to the pot type burner Y via the second return pipe 9.
[0028]
Further, when the other pot-type burner Y is extinguished due to non-ignition or misfire, fuel starts to accumulate in the pot-type burner Y. However, the fuel from the opening Y1-a provided on the second pot type burner Y is before issuing Re spilled fuel returns to Teiabura surface vessel 1 through a second return pipe 9. In this case, the opening height position L4 of the first return pipe 8 connected to the first pot type burner X inside the oil leveling device 1 is set to be higher than the opening position L2 of the second return pipe 9 inside the oil leveling device 1. low order, overflowing fuel Suruga going to flow back to the first pot burner X side through the first return pipe 8, the return pipe 8 communicating with the first pot burner X first riser pipe 4 is higher than the opening position L2 of the second return pipe 9 inside the constant oil level unit 1, the returned fuel does not flow back to the pot type burner X.
[0029]
【The invention's effect】
According to the present invention , as described above, when the first pot-type burner is extinguished due to non-ignition or misfire, fuel starts to accumulate in the pot-type burner. However, the fuel through the (air holes in the lowest position) opening provided in the first pot type burner before issuing Re spilled fuel returns to Teiabura surface unit through the first return pipe. Moreover, the opening height of the first return pipe of Teiabura surface vessel portion is lower than the opening height of the second return pipe of the internal Teiabura surface unit, a via a second return pipe No fuel flows back into the second pot burner.
[0030]
Further, when the second pot type burner is extinguished due to non-ignition or misfire, fuel starts to accumulate in the pot type burner. However, before the fuel through the (air holes in the lowest position) opening provided in the second pot burner issues Re spilled fuel returns to Teiabura surface vessel via a second return pipe. Moreover, the overflowing fuel tends to flow back to the first pot-type burner via the first return pipe, but the first return pipe communicating with the first pot-type burner is connected to the second return pipe. Since it is connected to the first riser pipe 4 at a position higher than the opening height position inside the constant oil leveler, the overflowed fuel does not reach the first pot type burner .
[Brief description of the drawings]
FIG. 1 is a diagram showing an example of an embodiment of the present invention. FIG. 2 is a cutaway side view showing an embodiment. FIG. 3 is a plan view of a leveling device. FIG. 4 is a line AA in FIG. 截 sectional view Figure 5 along line B-B transverse section view of FIG. 3 and FIG. 6 C over C line cutting off side view of FIG. 3 and FIG. 7 is a plan view of a state in which Remove the lid of Teiabura surface unit [ Explanation of code]
DESCRIPTION OF SYMBOLS 1 Constant oil leveler 3 On-off valve 4 First riser pipe 5 Second riser pipe 6 First pump 7 Second pump 8 First return pipe 9 Second return pipe X First pot type Burner Y Second pot type burner X1 First plurality of openings Y1 Second plurality of openings X1-a Lowest opening Y1-a Lowest opening L1 Oil level L2 Opening position

Claims (1)

A combustion apparatus of a type in which liquid fuel is supplied to a first pot-type burner and a second pot-type burner through one common oil leveling device, wherein the leveling device has a fuel inlet. An open / close valve that opens and closes, while controlling the oil level of the constant oil level unit to a constant level by the open / close valve, the opening at the lowest position among the first plurality of openings provided in the first pot type burner; In a combustion device in which the oil level of a constant level unit is set at a position lower than the lowest position of the second plurality of openings provided in the second pot type burner, the first unit is located outside the constant level unit. And a first riser pipe and a second riser pipe connected to each of the second pot-type burners, and the first pump and the second pump which suck up fuel from the constant oil level in each riser pipe are provided. Connect each discharge side, first and second riser pipes and oil level The first return pipe and the second return pipe are connected to each other, and the second riser pipe connected to the second pot-type burner is provided with a lower opening than the lowest position of the second pot-type burner. One end of the second return pipe is connected to the lower position, and the other end of the second return pipe is located above the oil level at a position lower than the lowest opening of the second pot-type burner. The first riser pipe that communicates with the inside of the oil level unit and communicates with the first pot-type burner has a first return pipe located at a position higher than the opening position of the second return pipe inside the constant oil level unit. One end of the pipe is connected, and the other end of the first return pipe is communicated with the inside of the oil level basin at a position lower than the opening position of the second return pipe inside the oil level basin. And combustion equipment .

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