JPH1182995A - Gasified petroleum hot water supply unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a gasified petroleum hot water supply unit in which resonance of an oil tank due to vibration of a pump during operation and transmission of resonance noise to other machine are prevented. SOLUTION: A pump 17 supplies oil from an oil tank 18 through piping 19 to a subtank 22 provided with a sensor 23 for controlling the oil level. An accumulator 24 disposed at the sucking section of the pump introduces oil from the oil tank through piping to the subtank in the body through pumping action produced by up/down motion of a plunger. The oil in the oil piping is vibrated through start/stop operation incident to the pump action but when the accumulator is disposed closest to the pump, vibration incident to the pump action is buffered at a generation source where the vibration is strongest and resonance of oil tank and transmission of resonance noise to other machine are prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing vibration noise generated during operation of a gasification type oil water heater used for domestic hot water supply and heating equipment.

[0002]

2. Description of the Related Art An oil water heater for vaporizing fuel will be described with reference to FIG. In FIG. 5, reference numeral 1 denotes a burner head, which is covered by a burner head case 2 having a U-shaped periphery and a vaporizer 3 having a heater having a U-shaped facing surface. Reference numeral 4 denotes a nozzle for ejecting fuel to the vaporizer 3. The nozzle 4 injects the oil sent from the oil supply pulse pump 5 to the vaporizer 3 through the nozzle pipe 6.

Reference numeral 7 denotes a pump for supplying oil from an oil tank 8 to a sub-tank through a pipe 9, an oil feed pipe 10 and a feed pipe 11. Reference numeral 12 denotes a sensor provided in the sub tank for controlling the oil level. Reference numeral 13 denotes a branch pipe branched in the middle of the oil pipe and connected to another petroleum product 14.

[0004]

In a petroleum water heater, as a product using a gun tamping burner, a pressure type pump for atomizing and spraying oil is used. In this pump, a pressure buffer is provided in the pump to buffer high-pressure pulsations.

On the other hand, a product using a vaporizing burner includes a pulse pump for supplying oil to the burner and a pump for guiding oil from an oil tank into the product.

[0006] Further, since the gasification type oil water heater requires a constant oil level for the pulse pump in order to supply stable oil to the burner, a sensor for controlling the oil level provided in the sub tank is provided. When there is no oil in the sub-tank, the pump is operated if there is no oil in the sub-tank.If there is oil in the sub-tank, the pump is stopped to maintain a constant oil level in the sub-tank. The stable oil was supplied to the burner through the nozzle.

This pump uses a flow rate pump whose plunger moves up and down because it does not need to atomize oil and does not need internal pressure.

This pump is installed at a position far from the oil tank depending on the installation conditions of the oil water heater, or installed on a wall above the oil tank in order to save the installation space. For this purpose, a pump having a strong suction force for sucking oil is provided.

However, the vertical movement of the plunger of the pump causes the oil in the pipe from the product to the oil tank to propagate and oscillate, and depending on the conditions of the pipe and the oil tank, a resonance sound may be generated in the oil tank. Also, when the piping is branched off from another oil-using device, vibration may propagate to other devices to generate resonance vibration sound depending on the piping conditions. It is an object of the present invention to solve the above-mentioned problems and to prevent a resonance to an oil tank and a resonance vibration to other devices due to a vibration noise during movement of a pump.

[0010]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides a sub-tank having a pulse pump for supplying oil to a burner in a main body and a sensor for oil level control, A pump for supplying oil is provided, and an accumulator is provided in the piping between the pump and the oil tank.

With the above structure, the gasification type oil hot water supply device of the present invention has the case covered with the vibration (generated by the start / stop movement of the fluid in the oil piping) generated by the pumping action due to the vertical movement of the plunger of the pump. By damping the vibration caused by the starting and stopping movements in the pipe by the accumulator having the elastic body, the resonance and the resonance generated by various construction works can be eliminated.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a sub-tank having a pulse pump for supplying oil to a burner in a main body and a sensor for controlling an oil level, and an oil from the oil tank to the sub-tank. The pump is provided with an accumulator in the middle of the piping between the pump and the oil tank. The accumulator is generated by the start / stop movement of the fluid in the oil piping due to the pump action due to the vertical movement of the plunger of the pump. An accumulator having an elastic body whose vibration is covered by a case has an operation of buffering vibration caused by starting and stopping movements in the pipe.

According to a second aspect of the present invention, the accumulator is connected in close proximity to the suction portion of the pump, and the movement of the fluid in the oil pipe by the pump action due to the vertical movement of the plunger of the pump. By setting the vibration generated at the position closest to the pump,
Vibration due to start and stop movements is buffered at the largest source.

According to a third aspect of the present invention, the accumulator is connected to the middle of the piping outside the main body in the vicinity of the suction part of the suction pump, and when the accumulator cannot be set at the suction part of the suction pump due to the structure of the product, By setting the oil pipe at the outlet of the main body, the vibration caused by the start / stop movement is buffered closer to the source.

According to a fourth aspect of the present invention, a plurality of accumulators are connected at a concentrated position, and a large buffering action is provided by concentrating the ability to buffer vibrations caused by starting and stopping movements in one place. doing.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is an overall configuration diagram of Embodiment 1 of the present invention.

In FIG. 1, reference numeral 11 denotes a burner head, which is covered by a burner head case 12 having a U-shape and a vaporizer 13 having a U-shape facing the heater. 1
Reference numeral 4 denotes a nozzle for ejecting fuel to the carburetor 13. The nozzle 14 jets oil sent from a pulse pump 15 for oil supply to a vaporizer 13 through a nozzle pipe 16. A pump 17 supplies oil from an oil tank 18 to a sub-tank 22 through a pipe 19, an oil feed pipe 20, and a feed pipe 21. 23 is a sensor provided on the sub tank for controlling the oil level. Reference numeral 24 denotes an accumulator set at the suction part of the pump. Reference numeral 25 denotes a branch pipe branched in the middle of the oil pipe and connected to another petroleum product 26.

Next, the operation and function will be described. The oil from the oil tank is guided to the sub-tank in the main body through the oil pipe by the pumping action by the vertical movement of the plunger of the pump. At this time, the oil in the oil pipe generates vibration generated by the start and stop movement by the pump action, but by setting the accumulator to the position closest to the pump, the vibration due to the start and stop movement at the largest source is generated. It is a buffer.

(Embodiment 2) FIG. 2 is an overall configuration diagram of Embodiment 2 of the present invention.

The difference from the first embodiment is that two accumulators 22 provided at the suction part of the pump are provided at a position where they are concentrated by the accumulator 22 provided at the oil outlet of the main body 27 and connected to the oil pipe 19.

The components having the same reference numerals as in the first embodiment have the same configuration, and the description is omitted. Next, the operation and action will be described. If the accumulator cannot be set at the suction part of the pump, because of the product configuration, the vibration caused by the start / stop motion is located closer to the source by setting the accumulator at the oil pipe outlet of the main body. ing. Also, two accumulators are provided at a position where the accumulators are concentrated, and the ability to buffer vibrations caused by the starting and stopping movements is concentrated in one place, thereby having a large damping action.

[0023]

As described above, according to the present invention, by providing the accumulator in the middle of the piping between the pump and the oil tank, it is possible to eliminate the resonance and the resonance generated due to various construction works.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an evaporative oil hot water heater according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the gasification type oil hot water heater.

FIG. 3 is an overall configuration diagram of a vaporized oil hot water heater according to Embodiment 2 of the present invention.

FIG. 4 is a sectional view of a main part of the gasification type oil hot water heater.

FIG. 5 is an overall configuration diagram of a conventional vaporized oil hot water heater.

[Explanation of symbols]

 15 Pulse pump 17 Pumping pump 18 Oil tank 19 Oil pipe 22 Sub tank 24 Accumulator 27 Main body

Claims (4)

[Claims] A sub-tank having a pulse pump for supplying oil to a burner in a main body and a sensor for controlling an oil level; a pump for supplying oil from the oil tank to the sub-tank; Evaporated oil water heater equipped with an accumulator in the middle of piping. 2. The evaporative petroleum water heater according to claim 1, wherein the accumulator is connected near the suction part of the pump. 3. The evaporative petroleum water heater according to claim 1, wherein the accumulator is connected in the middle of a pipe outside the main body near the suction part of the pump. 4. The vaporized petroleum water heater according to claim 2, wherein a plurality of accumulators are connected to a centralized position.