JPH0228364Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a condensation water receiving device for a heat exchanger, which comprises a liquid passage pipe wound vertically in a spiral manner.

(Prior Art) Conventionally, a heat exchanger is installed in a chimney connected to a stove such as a kerosene stove, and the heat exchanger is made by winding a liquid pipe in a vertical spiral.
The one disclosed in Japanese Patent Application Laid-open No. 1983-29942 is a heat exchanger that has a heat exchanger constructed by spirally winding a liquid passage pipe directly inside the combustion shell. known.

(Problem to be solved by the invention) In such a heat exchanger, water vapor contained in the combustion exhaust gas comes into contact with the liquid passage pipes and condensation occurs, especially when the fuel is kerosene, heavy oil, coal, etc. In some cases, sulfur contained in the fuel becomes sulfur dioxide gas as it burns and is contained in the exhaust gas, which dissolves in the dew condensation water and becomes dilute sulfuric acid.

Such condensed water falls from unspecified points in the liquid passage pipe, so for example, as seen in Publication of Utility Model Publication No. 34-659, a condensation water receiving gutter is installed along the lower surface of the spiral liquid passage pipe. This obstructs the contact of the exhaust gas with the liquid passage pipe, which tends to reduce the heat exchange efficiency, and furthermore, the receiving gutter itself becomes larger.

The object of the present invention is to obtain a device free from such disadvantages.

(Means for Solving the Problems) In order to achieve the above object, the present invention has a heat exchanger that faces the inside of the combustion exhaust passage, and a liquid passage tube is wound vertically in a spiral to exhaust air inside and outside of the heat exchanger. In the heat exchanger, the heat exchanger is provided with contact pieces that contact at least the lower surface of the liquid passage pipe at a plurality of locations in the vertical direction of the liquid passage pipe and are connected to each other, A receiving gutter is provided in the lower part of the heat exchanger, and a water guiding piece connected to the lower end of the contact piece faces above the receiving gutter.

(Example) An example of implementing the present invention will be described with reference to the drawings. In the drawing, reference numeral 2 denotes a heat exchanger facing into the passage 1 of hot combustion air, and the heat exchanger 2 is constructed by spirally winding a liquid passage pipe 3.

Up until now, there has been no difference from the conventionally known heat exchanger 2, and the liquid passage pipe 3 constituting the heat exchanger 2 penetrates the side wall 1a of the passage 1 and has both ends 3.
a, 3b are brought out to the outside and connected to a heat radiator A as appropriate.

1 to 4 show an embodiment in which the heat exchanger 2 is provided in a chimney 5 of a stove 4 such as a kerosene stove, which is a passage 1 for hot combustion air.

In such a case, the present invention provides the heat exchanger 2.
, contact pieces 6 that contact at least the lower surface of the liquid passage pipe 3 at a plurality of locations in the vertical direction of the liquid passage pipe 3 and are connected to each other.
At the same time, a receiving gutter 7 is provided below the heat exchanger 2 in the passage 1, and a water guiding piece 8 connected to the lower end of the contact piece 6 faces above the receiving gutter 7, whereby the heat is transferred. The condensed water adhering to the exchanger 2 is surely guided to the receiving gutter 7.

1 to 3, the contact piece 6 is a metal rod 9 equipped with a plurality of notches 9a that match the helical pitch of the liquid pipe 3, and this is attached to the inside of the liquid pipe 3. The water guiding piece 8 was provided as one piece at the lower end of the metal rod 9 by tightening and fixing the metal rod 10 along the outside of the liquid passage pipe 3 with a screw 11. However, the contact piece 6 is not limited to such a thing, and as shown in FIG. The wire 12 constituting the contact piece 6 was wound alternately between the liquid passage pipe 3 and the liquid passage pipe 3 wound around the water passage pipe 3, and the wire 12 constituting the contact piece 6 was wound several times around the lower part of the liquid passage pipe 3 running in the vertical direction to form the water guide piece 8.

When attaching the heat exchanger 2 to the chimney 5, the exhaust pipe 5 is divided into a base pipe 5a connected to the stove 4, a relay pipe 5b in which the heat exchanger 2 is housed in advance, and a tip pipe 5c connected to the outside. In Fig. 1, 13 indicates a floor heater as a radiator A and a heat exchanger 2.
This is a pump interposed between the

(Function) In this case, the water vapor contained in the combustion exhaust comes into contact with the heat exchanger 2 and condensation is transmitted to the lower surface of the spiral liquid passage pipe 3 and gradually moves downward, but the contact piece 6 prevents the condensation. movement is prevented.

For this reason, dew condensation gradually accumulates in the area, and when it reaches a predetermined size, it flows down along the contact piece 6. Therefore, they can be easily collected at a desired location.

(Effect) As described above, when the present invention is used, the heat exchanger 2
In addition, contact pieces 6 are provided which contact at least the lower surface of the liquid passage pipe 3 at a plurality of locations in the vertical direction of the liquid passage pipe 3 and are connected to each other, and a receiving gutter 7 is provided at the bottom of the heat exchanger 2. Since the water guide piece 8 connected to the contact piece 6 is exposed on the upper surface of the water receiving gutter 7, the condensed water adhering to the circumferential surface of the liquid passage pipe 3 is collected by the contact piece 6, and the water is guided. The water can be reliably guided to the water receiving gutter 7 by the piece 8, and it is sufficient to install the water receiving gutter 7 at the lower part of the water guiding piece, resulting in miniaturization and the effect that there are no inconveniences seen in the conventional example. be.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one example of implementing the present invention;
The figure is an enlarged cross-sectional view of the main part, FIG. 3 is an enlarged cross-sectional view of a part thereof, and FIG. 4 is a diagram showing a modification thereof. 1...Passway, 2...Heat exchanger, 3...Liquid passage pipe, 6...Contact piece, 7...Receiving gutter, 8...Water guiding piece.

Claims (1)

[Scope of utility model registration request] In a heat exchanger that faces the combustion exhaust passage, the liquid passage tube is spirally wound in the vertical direction so that the exhaust gas acts on the inside and outside of the heat exchanger. Contact pieces that contact at least the lower surface of the liquid passage pipe and are connected to each other at a plurality of locations in the vertical direction of the pipe are provided, a receiving gutter is provided at the lower part of the heat exchanger, and a water guide piece that is connected to the lower end of the contact piece is provided. A dew condensation water receiving device in a combustor, comprising: facing above the receiving gutter.