JP2870221B2 - Oil water heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil hot water heater used for domestic hot water supply and heating equipment.

[0002]

2. Description of the Related Art In general, an oil hot water supply system in which oil is pumped and then supplied to a sub-tank in an apparatus main body is as shown in FIG. Reference numeral 1 denotes a pump for pumping oil from an oil tank (not shown) installed on the ground to a sub-tank 2 in the main body of the pumping device via a pipe 3. Reference numeral 4 denotes a lid of the sub-tank 2 in the apparatus main body. An electromagnetic pump 5 for sending oil to a burner is provided on the upper surface of the lid 4. Lid 4
Is provided with an insertion hole 4a of the pipe 3 with a gap. The sub-tank 2 and the pump 1 are attached to the tank base 6 and then fixed to the equipment exterior 7. Further, a socket 8 and a plug 9 are provided for drainage for draining oil and water at the time of production / shipment and maintenance in the market.
The O-ring 10 is attached to the lower surface of the sub tank 2.

[0003]

However, such a conventional sub-tank has the following problems. That is, in the production process of a combustion appliance, it is usual to ship after performing a combustion inspection, so it is necessary to put oil into the sub-tank 2 at the time of the inspection. Next, when the combustion test is completed, a gap between the insertion hole 4a provided in the lid 4 for inserting the electromagnetic pump 5 and the pipe 3 on the upper surface of the lid 4 and the pipe 3, and the lid 4 and the sub tank 2
It is necessary to drain the oil from the sub-tank 2 because the oil spills out during the transportation from the gap. For this purpose, a socket 8, a plug 9, and an O-ring 10 for draining oil are attached to the sub tank 2. However, as described above, providing the structure of the oil drain to the sub tank 2, production costs up next
After the end of production, remove plug 9 each time to remove oil
However , the installation has resulted in a large loss in production man-hours. Furthermore, the oil in the sub tank has a large oil viscosity and remains on the bottom of the tank due to surface tension, so it is very difficult to completely remove the oil. quotient there is that defile
In some cases, the quality was significantly impaired . Also, after installation in the market, it is used connected to the oil tank, but if you forget to close the oil tank lid when refilling the oil tank, water accumulated in the oil tank during rainy weather Water may be sucked by the pump and enter the sub-tank, causing poor combustion. For this reason, even if the oil is drained, the water accumulated in the sub-tank is not completely drained, and the sub-tank may be rusted due to poor combustion or left for a long period of time, and the sub-tank may be perforated.

An object of the present invention is to solve the above-mentioned problems and to provide an oil hot water heater capable of simplifying oil removal after completion of combustion inspection in a production process.

[0005]

In order to solve the above-mentioned problems, the present invention provides a sub-tank having an open upper surface and an outer bottom surface.
A hat-shaped lid attached and an electromagnetic pon that supplies oil to the burner
And a liquid level control sensor that detects the oil level in the sub tank.
And a pump to supply oil to the sub tank
The hat-shaped lid opens the sub tank on the back side of the upper surface
Attach as if to cover the part, the height is twice the height of the sub tank
If you secure a space area that can enter and exit from below
In both cases, the electromagnetic pump and
And a liquid level control sensor, and
The pump is fitted with a pump .

[0006]

The oil hot water heater of the present invention has a sub
Since the attachment and detachment of the tank is very easy, the test tank after completion performed combustion testing the different test tank to the sub tank the factory during combustion test was temporarily fixed on the back side of the upper surface of the hat-shaped lid of the production process After removing the sub-tank, an unused sub-tank is attached to the back side of the upper surface of the hat-shaped lid, thereby preventing an increase in production cost and loss of production man-hours due to drainage of oil from the sub-tank. Also, Oite at the time of shipment transportation
Since no oil is contained in the sub-tank, it is possible to prevent oil from being scattered from the sub-tank. Furthermore, in the market, even if water accumulates in the sub tank and causes combustion failure, only the sub tank can be easily removed from the space under the hat-shaped lid, so that after maintenance, combustion failure does not occur In addition, since the water can be completely removed, the sub-tank does not open due to rust.

[0007]

An embodiment of the present invention will be described below with reference to FIG. In FIG. 1, reference numeral 11 denotes a pump for pumping oil from an oil tank (not shown) installed on the ground and supplying the oil to a sub-tank 13 in the apparatus main body via a pipe 12. The sub-tank 13 has a flange on the upper surface and opens the upper surface. Reference numeral 14 denotes a hat-shaped lid that covers an open portion of the sub-tank 13 and has a height that is at least twice the height of the sub-tank 13 and is fixed to the bottom surface of the exterior 15. Reference numeral 16 denotes a screw for fixing the sub-tank 13 and the hat-shaped lid 14. Further, an electromagnetic pump 17 for sending oil to the burner and a sensor 18 for controlling the liquid level are provided on the upper surface of the hat-shaped lid 14. 19 is a leg of the device.

In the above configuration, at the time of the combustion inspection in the production process, the combustion inspection is performed by temporarily fixing a test tank different from the sub tank 13 at the time of shipment to the back side of the upper surface of the cap-shaped lid 14. After the inspection, remove the test tank and insert an unused sub-tank 13 from the space below the cap 14
Then, it can be attached to the back side of the upper surface of the hat-shaped lid 14 to prevent loss of production man-hours due to oil drainage of the sub-tank 13,
Also, it is possible to prevent oil from being scattered from the sub tank 13 during shipping and transportation. Further, in the market, even if water accumulates in the sub-tank 13 and causes combustion failure, the mounting height of the sub-tank 13 is more than twice as large as that of the sub-tank 13,
3 can be easily removed from the bottom of the main body, that is, the space below the hat-shaped lid 14, so that after maintenance, combustion failure does not occur, and water can be completely removed. It will not rust and cause perforation.

In addition, a screw 16 is provided for fixing the hat-shaped lid 14 and the sub-tank 13 in one embodiment of the present invention.
As shown in FIG. 2, the same effect can be obtained by supporting the sub-tank 13 upward from the lower surface of the sub-tank 13 with the spacer 20.

[0010]

As described above, according to the present invention, a sub-tank having an upper surface opened in the exterior and a space area which is at least twice as high as the height of the sub-tank and facilitates taking in and out of the sub-tank are provided.
And a hat-shaped lid that covers the opening of the sub-tank by detachably attaching the sub-tank to the back side of the upper surface, and an electromagnetic pump on the upper surface of the lid facing the opening of the sub-tank
In addition, by providing a liquid level detection sensor and providing a pump at the end of the upper surface , oil drainage during the production process can be simplified and oil can be prevented from scattering from the sub-tank during shipping and transportation. Further, in the market, even if water accumulates in the sub-tank and a combustion failure occurs, the sub-tank can be easily removed from the main body, so that a maintenance failure does not occur after the maintenance. Further, the water can be completely removed, and it is possible to prevent the sub-tank from being rusted and causing a perforation.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a sub-tank configuration of an oil water heater according to one embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of a sub-tank configuration of an oil water heater according to another embodiment.

FIG. 3 is a front view of a sub-tank configuration of a conventional oil water heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Pump-up pump 12 Pipe 13 Sub-tank 14 Hat-shaped lid 15 Exterior 16 Screw 17 Electromagnetic pump 18 Liquid level control sensor 20 Spacer

Continuation of the front page (72) Inventor Yuuki Kubota 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-3-181705 (JP, A) .Cl. ⁶ , DB name) F24H 9/02 301 F23K 5/14 501 F24H 9/18 302

Claims (1)

(57) [Claims] 1. A sub-tank having an open top surface and a bottom surface of an exterior.
A hat-shaped lid attached, an electromagnetic pump for supplying oil to the burner, a liquid level control sensor for detecting the level of oil in the sub-tank, and a pump for supplying oil to the sub-tank; Is attached to the back of the upper surface so as to cover the opening, and the height is set to 2
More than doubled to secure a space that can be freely accessed from below.
In addition, an oil water heater in which an electromagnetic pump and a liquid level control sensor are mounted on the upper surface facing the sub-tank opening, and a pump is mounted on an end thereof .