JP2019203614A - Combustion device and fuel supply device - Google Patents

Abstract

To prevent vibration of a pump from being transmitted to a housing through a pumping pipe to cause noise.SOLUTION: A combustion device includes: a pump 12 which supplies a fuel to a storage tank 9; a pumping pipe 16 with which an oil feed hose 18 from an external tank is connected; and a movement restriction member 19 which restricts movement of the pumping pipe 16. A housing 1 has a housing hole part 1f on its side surface, and the pumping pipe 16 has: a vertical part 16b extending from an inlet of the pump 12 in a substantially perpendicular direction; and a horizontal part 16c extending from an inlet end 16a in a substantially horizontal direction. The movement restriction member 19 has: a horizontal plate 19a which has a cutout part 20 through which the vertical part 16b of the pumping pipe 16 is inserted and is substantially orthogonal to an axial direction of the vertical part 16b; and a vertical plate 19b which has a restriction hole part 21 into which the horizontal part 16c of the pumping pipe 16 is inserted and is substantially orthogonal to the axial direction of the horizontal part 16c. The housing hole part 1f, the cutout part 20, and the restriction hole part 21, and the pumping pipe 16 are in a non-contact state.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a combustion apparatus and a fuel supply apparatus provided with a pumping pump.

  Conventionally, in a combustion apparatus equipped with this type of pumping pump, as shown in Patent Document 1, a combustion part for burning fuel oil inside the housing, a fuel pump for supplying fuel oil to the combustion part, A storage tank for storing fuel supplied to the combustion section, a pump for supplying fuel from an external tank to the storage tank, and an oil supply hose from the external tank are connected to the inlet of the pump There was one with a pumping pipe to be used.

Japanese Patent No. 2870221

  However, in this conventional type, the inlet end of the pumping pipe is fixed to the side of the casing through a metal fitting, so the vibration of the pumping pump is transmitted to the casing through the pumping pipe and noise is generated. It was something to do.

  In order to solve the above-described problems, a combustion apparatus according to the present invention stores a combustion part that burns fuel oil, a fuel pump that supplies the combustion part with fuel, and fuel oil that is supplied to the combustion part. A storage tank, a pump for supplying fuel oil from an external tank into the storage tank, a pumping pipe connected to an inlet of the pumping pump to which an oil supply hose from the external tank is connected, and the pumping pipe A movement restricting member for restricting the movement of the housing, and the housing has a housing hole portion that faces an inlet end of the pumping tube on a side surface thereof, and the pumping tube extends in a substantially vertical direction. A vertical portion extending in a substantially horizontal direction from the inlet end, and the movement restricting member includes a notch portion through which the vertical portion of the pumping pipe is inserted. A horizontal plate substantially perpendicular to the axial direction of the A vertical plate having a restriction hole portion through which the horizontal portion of the pumping pipe is inserted and substantially perpendicular to the axial direction of the horizontal portion, and the housing hole portion, the notch portion, and the restriction hole portion, The pumping tube is in a non-contact state.

  In addition, the vertical plate of the movement restricting member is provided to hang from an end portion of the horizontal plate that is substantially orthogonal to the side surface of the cutout portion on the open end side.

  Further, the movement restricting member is provided with a bent piece on the side surface of the horizontal plate opposite to the open end of the notch.

  The fuel supply device of the present invention includes a storage tank that stores fuel supplied to a combustion unit that burns fuel, a tank lid that closes an upper surface of the storage tank, and a fuel that is provided in the tank lid and is provided in the combustion unit. A pump for supplying fuel, a pump for supplying fuel from an external tank to the storage tank, and an oil level sensor for detecting the oil level in the storage tank A pumping pipe connected to an inlet of the pumping pump, a tank support member for mounting and fixing the storage tank, a pumping pipe fixed to the tank support member and connected to the pumping pipe. A movement restricting member for restricting movement, and the pumping pipe has a vertical portion extending in a substantially vertical direction and a horizontal portion extending in a substantially horizontal direction from the inlet end, The movement restricting member includes a horizontal plate that is substantially orthogonal to the axial direction of the vertical portion and an end that is substantially orthogonal to the axial direction of the horizontal portion and is substantially orthogonal to the side surface of the horizontal plate on the open end side of the notch portion. A vertical plate that hangs down from the portion, and a vertical portion of the pumping pipe is inserted through the horizontal plate, and the cutout portion has a cutout width larger than the outer diameter of the pumping tube. The horizontal portion of the pumping tube is inserted through the vertical plate, and a restriction hole portion having an inner diameter larger than the outer diameter of the pumping tube is provided.

  According to the present invention, since the pumping pipe and the movement restricting member are not in contact with each other, vibration of the pumping pump can be cut off, generation of noise can be suppressed, and oil can be supplied to the pumping pipe while being non-contact. Large displacement and deformation of the pumping pipe when the hose is attached and detached can be prevented.

1 is a partially transparent perspective view of a combustion apparatus according to an embodiment of the present invention. The perspective view of the fuel supply apparatus of the same embodiment The perspective view of the movement control member of the same embodiment

Next, an embodiment in which the present invention is applied to a forced air supply / exhaust petroleum hot air heater will be described with reference to the drawings.
Reference numeral 1 denotes a casing of the oil hot air heating apparatus, which includes a front panel 1a, left and right side plates 1b, a back plate 1c, a top plate 1d, and a bottom plate 1e.

  2 is a warm air outlet that is opened on the front surface of the housing 1 and blows out hot air, 3 is an operation unit provided at the top of the housing 1, 4 is for intake of combustion air, and exhausts exhaust gas after heat exchange An air supply / exhaust pipe made of a double pipe for the purpose, 5 is an air supply / exhaust top exposed to the outdoors, 6 is an air supply hose for supplying combustion air from the air supply / exhaust pipe 4 to a combustion section (not shown) Is a heat exchanger for exchanging heat with indoor air blown from a blower fan (not shown) provided on the back of the casing 1 through which the combustion gas from the combustion part flows, and 8 is a fuel such as kerosene in the combustion part. A fuel supply device for supplying.

  When the heating operation is started, the combustion oil from the fuel supply device 8 and the combustion air from the combustion fan (not shown) connected to the air supply hose 6 are supplied to the combustion section and combustion is performed. The combustion gas from the combustion section is heat-exchanged with the room air in the heat exchanger 7 and becomes exhaust gas that passes through the supply / exhaust pipe 4 and is discharged from the supply / exhaust top 5 to the outside, while the room air is blown by a fan. Is heated by the heat exchanger 7 and blown out from the hot air outlet 2 for heating.

Next, the fuel supply device 8 will be described in detail.
The fuel supply device 8 detects a fuel tank 10 that stores fuel oil supplied to the combustion unit, a fuel pump 10 that supplies fuel oil from the storage tank 9 to the combustion unit, and detects the oil level of the fuel oil in the storage tank 9. The oil level sensor 11 and the pumping pump 12 for supplying fuel oil from an outdoor external tank (not shown) up to a predetermined height when the oil level in the storage tank 9 falls below a predetermined height. I have.

  The upper surface of the storage tank 9 is closed with a tank lid 13, and a fuel pump 10 and an oil level sensor 11 are attached to the tank lid 13. The fuel pump 10 is provided with a suction end (not shown) in the storage tank 9, and supplies fuel in the storage tank 9 in an amount corresponding to the combustion amount to the combustion section via the fuel pipe 14. The oil level sensor 11 has a float (not shown) that moves up and down according to the vertical movement of the oil level in the storage tank 9, and detects the lower limit oil level and the upper limit oil level. The oil level sensor 11 may be an optical sensor.

  The storage tank 9 is mounted and fixed to the bottom plate 1e by a tank support member 15. The tank support member 15 includes a base portion 15a and a pair of rising portions 15b, and the base portion 15a is connected to the bottom plate via a rubber bush 15c. 1e, and the upper end flange (not shown) of the storage tank 9 and the tank lid 13 are fastened together with screws at the upper end of the rising portion 15b so that the bottom of the storage tank 9 is fixed in a floating state. Yes.

  The tank lid 13 has an extending portion 13a extending to one end side from the upper surface of the storage tank 9, and the pumping pump 12 is fixed to the extending portion 13a. The pumping pump 12 has an L-shaped pumping pipe 16 connected to the lower inlet side and a pumping discharge pipe 17 connected to the upper outlet side. The pumping discharge pipe 17 is opened in the storage tank 9 through an introduction hole 13 b opened in the tank lid 9.

  The inlet end 16a of the pumping pipe 16 is exposed to the outside of the casing through a casing hole 1f opened on the side surface (here, the back plate 1c) of the casing 1, and the inlet end 16a is made of rubber from an external tank. The oil feeding hose 18 is connected and fixed by a hose clip (not shown). The outdoor external tank and the pumping pipe 16 are connected to an outdoor copper pipe (not shown) connected to the external tank, an indoor main plug (not shown) connected to the outdoor copper pipe and disposed indoors, The oil supply hose 18 is connected. The inner diameter of the casing hole 1f is larger than the outer diameter of the pumping pipe 16, and the casing 1 and the pumping pipe 16 are not in contact with each other.

  The pumping pipe 16 has an L-shape, and a vertical portion 16b extending in a substantially vertical direction from a lower inlet of the pumping pump 12, and a horizontal portion 16c extending in a substantially horizontal direction from the inlet end 16a. And an R portion 16d that connects the lower end of the vertical portion 16b and the opposite end of the horizontal portion 16c. At the upper end of the vertical portion 16b, a joint portion 16e connected to the inlet of the pumping pump 12 with a cap nut is provided.

  The pumping pipe 16 is restricted by the movement restricting member 19 from moving or deforming the pipe when the oil feeding hose 18 is attached. The movement restricting member 19 is composed of a sheet metal member, and includes a horizontal plate 19a that is substantially orthogonal to the axial direction of the vertical portion 16b of the pumping tube 16, and a vertical plate 19b that is approximately orthogonal to the axial direction of the horizontal portion 16c of the pumping tube 16. The pumping pipe 16 has an L-shaped shape rotated 180 degrees so that the vertical board 19b hangs down from the tip of the horizontal plate 19a on the inlet end 16a side of the pumping pipe 16. ing.

  On the side surface of the horizontal plate 19a, a bent piece 19c is provided that bends the side edge of the horizontal plate 19a to improve the bending strength. The bent piece 19 c is provided with a screw hole 19 d for fixing to the rising portion 15 b of the tank support member 15, and is fixed to the tank support member 15 via the rising piece 15 b so as to be relative to the pumping pump 12. The target position is fixed.

  The horizontal plate 19a is provided with a notch 20 through which the vertical portion 16b of the pumping pipe 16 is inserted so that an open end is opened at an end surface that is substantially orthogonal to the vertical plate 19b and has no bent piece 19c. Yes. The vertical plate 19b is provided with a restriction hole portion 21 through which the horizontal portion 16c of the pumping pipe 16 is inserted. The notch 20 and the regulation hole 21 have a notch width or an inner diameter larger than the outer diameter of the pumping pipe 16, and are not in contact with the pumping pipe 16.

  The restriction hole 21 has stress concentrated on the horizontal portion 16c of the pumping pipe 16 in order to alleviate transmission of vibration when the horizontal portion 16c of the pumping pipe 16 comes into contact with the regulating hole portion 21 or with a relatively thin plate thickness of the vertical plate 19b. A bush 22 made of a soft resin such as rubber is provided so as to cover the end face of the restriction hole 21 so as not to be applied. The inner diameter of the bush 22 is also larger than the outer diameter of the pumping pipe 16 and is not in contact with the pumping pipe 16.

  Then, when the fuel in the storage tank 9 is consumed by the heating operation and the oil level sensor 11 detects that the fuel has been reduced to the lower limit oil level, the pumping pump 12 is started to drive, and the fuel from the external tank is stored in the storage tank. 9, when the oil level sensor 11 detects that the amount of fuel has increased to the upper limit oil level, the pumping pump 12 is stopped and a certain amount of fuel oil is held in the storage tank 9. Note that the driving stop of the pumping pump 12 may be stopped when a predetermined time elapses from the start of driving of the pumping pump 12.

  Since the pumping pipe 16 is not in contact with the casing 1 and the movement restricting member 19 by being configured in this manner, vibrations through the pumping pipe 16 among the vibrations of the pumping pump 12 are applied to the casing 1. Can be cut off and noise generation can be suppressed

  Even when the oil feeding hose 18 is inserted into or pulled out from the inlet end 16a of the pumping pipe 16, even if a force that shifts in the radial direction (vertical and horizontal directions) of the horizontal portion 16c of the pumping pipe 16 is applied, The movement of the horizontal portion 16c is restricted by the restriction hole portion 21 of the vertical plate 19b of the movement restricting member 19, and the pressing force or the pulling force is applied in the axial direction of the horizontal portion 16c of the pumping pipe 16 (the internal direction of the housing 1). Even so, the movement of the vertical portion 16 b of the pumping pipe 16 is restricted by the inner surface of the cutout portion 20 of the horizontal plate 19 a of the movement restricting member 19.

  Therefore, the pumping pipe 16 is not greatly moved or deformed, and the oil feeding hose 18 can be easily inserted and pulled out.

  At this time, since the movement of the horizontal portion 16c of the pumping pipe 16 in the radial direction (particularly in the left-right direction) is restricted by the restriction hole portion 21, the vertical portion 16b of the pumping pipe 16 may be detached from the notch portion 20. Therefore, the cutout portion 20 is always in a position where it can act on the vertical portion 16b of the pumping pipe 16, and excessive deformation in the axial direction (inner direction of the housing 1) can be reliably prevented.

  In addition, since the rotation about the vertical portion 16b of the pumping pipe 16 is restricted by the restriction hole portion 21, the pumping pipe 16 and the pumping pump 12 resulting from the insertion / extraction work of the oil feeding hose 18 are connected. Looseness of the joint portion 16e can also be suppressed.

  Since the bent piece 19c is provided on the side surface of the horizontal plate 19a of the movement restricting member 19, the rigidity against the force applied in the thickness direction (vertical direction) of the plate of the horizontal plate 19a is enhanced, and the deformation of the pumping pipe 16 against the stronger force is prevented. Or the thickness of the movement restricting member 19 itself can be reduced.

  At the time of assembly such as manufacturing or maintenance, the horizontal portion 16c of the pumping tube 16 is passed through the restriction hole portion 21 of the vertical plate 19b of the movement restricting member 19, and then the vertical portion 16b of the pumping tube 16 is passed through the horizontal plate 19a of the movement restricting member 19. The pumping pipe 16 and the movement restricting member 19 are relatively rotated around the horizontal part 16c of the pumping pipe 16 so as to be inserted into the notch part 20 of the pumping pipe 16, and the joint part 16e of the pumping pipe 16 is connected to the pumping pump 12. Since it is assembled so as to be connected to the inlet, the pumping pipe 16 can be easily and uniformly set at a predetermined position, and assembly can be facilitated.

  Note that the present invention is not limited to the above-described embodiment, and can be modified without changing the gist, and has been described by taking a forced air supply / exhaust petroleum hot air heating device as an example. It may be a radiant oil heating device or an oil hot water boiler.

  Moreover, the combustion part should just be a well-known thing which receives the fuel supply from the fuel pump 10, and combusts, and should just be a vaporization type burner, a pot type burner, a gun burner etc.

DESCRIPTION OF SYMBOLS 1 Case 1f Case hole part 8 Fuel supply apparatus 9 Storage tank 10 Fuel pump 11 Oil level sensor 12 Pumping pump 13 Tank cover 15 Tank support member 16 Pumping pipe 16a Inlet end 16b Vertical part 16c Horizontal part 18 Oil supply hose 19 Movement Restriction member 19a Horizontal plate 19b Vertical plate 19c Bending piece 20 Notch 21 Restriction hole

Claims (4)

Inside the housing, a combustion part for burning the fuel oil, a fuel pump for supplying the combustion part with the fuel oil, a storage tank for storing the fuel oil supplied to the combustion part, and an external tank in the storage tank A pump for supplying fuel, a pumping hose connected to an oil feed hose from the external tank, connected to an inlet of the pump, and a movement regulating member for regulating movement of the pumping pipe,
The housing has a housing hole portion that faces the inlet end of the pumping pipe on a side surface thereof,
The pumping pipe has a vertical portion extending in a substantially vertical direction, and a horizontal portion extending in a substantially horizontal direction from the inlet end,
The movement restricting member has a notch portion through which a vertical portion of the pumping pipe is inserted, and a horizontal plate substantially orthogonal to the axial direction of the vertical portion, and a restriction hole portion through which the horizontal portion of the pumping tube is inserted. And a vertical plate substantially orthogonal to the axial direction of the horizontal portion,
The combustion apparatus, wherein the casing hole part, the notch part, the restriction hole part, and the pumping pipe are in a non-contact state. 2. The combustion according to claim 1, wherein the vertical plate of the movement restricting member is provided so as to hang from an end portion of the horizontal plate that is substantially orthogonal to a side surface of the cutout portion on the open end side. apparatus. The combustion apparatus according to claim 2, wherein the movement restricting member is provided with a bent piece on a side surface of the horizontal plate opposite to an open end of the notch. A storage tank for storing fuel oil supplied to a combustion section for burning the fuel oil;
A tank lid for closing the upper surface of the storage tank;
A fuel pump provided on the tank lid and supplying fuel to the combustion section;
A pump that is provided in the tank lid and supplies fuel from an external tank into the storage tank;
An oil level sensor provided on the tank lid for detecting the oil level in the storage tank;
A pumping pipe connected to an oil feeding hose from the external tank and connected to an inlet of the pumping pump;
A tank support member for mounting and fixing the storage tank;
A movement regulating member fixed to the tank support member and regulating movement of the pumping pipe,
The pumping pipe has a vertical portion extending in a substantially vertical direction, and a horizontal portion extending in a substantially horizontal direction from the inlet end,
The movement restricting member includes a horizontal plate that is substantially orthogonal to the axial direction of the vertical portion, and is substantially orthogonal to the axial direction of the horizontal portion, and is substantially orthogonal to the side surface of the horizontal plate on the open end side of the notch portion. A vertical plate hanging from the end, and
In the horizontal plate, a vertical portion of the pumping pipe is inserted, and a cutout portion having a cutout width larger than an outer diameter of the pumping pipe is provided,
A fuel supply device, wherein a horizontal portion of the pumping pipe is inserted into the vertical plate, and a restriction hole portion having an inner diameter larger than an outer diameter of the pumping pipe is provided.

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