JPH0356735Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] The present invention relates to a hot water boiler in which a combustion chamber and a smoke chamber are installed in a solid shape, and an endothermic tube is installed horizontally in the smoke chamber. The gas generator is used to thermally decompose (dissociate) water and burn the generated hydrogen and oxygen.
The present invention relates to an improvement in which the heat of combustion can provide a heating effect to the heat absorption tube. [Prior Art] The present applicant has developed a hot water boiler in which a combustion chamber and a smoke chamber are provided in a vertical manner, a heating water pipe is installed horizontally in the combustion chamber in correspondence with a burner, and heat absorption pipes are arranged in stages in the smoke chamber. It has been proposed earlier. In other words, the hot water boiler has heating water pipes formed in a cone shape (Utility Application No. 61-99616) whose diameter gradually becomes smaller from the base toward the tip, and multiple heating water pipes between the frame-shaped water pipes installed facing each other in the front and rear positions. Heating water pipe formed by horizontally extending a main communication pipe
No. 155999) is installed horizontally in the combustion chamber in correspondence with the burner, while in the smoke chamber connected to the upper part of the combustion chamber, multiple heat absorption pipes with one upper end closed are installed in multiple stages. It is installed horizontally with a slope so that the heating water tube is heated by the combustion flame of the burner, and the heat absorption tube is heated by the residual heat of the combustion. [Problems to be solved by the invention] However, in the heating method described above, since the primary heating effect of the combustion flame on the heating water pipe is obtained, it is not possible to effectively utilize the amount of heat generated by the burner. However, the problem is that the amount of fuel burned in the burner itself, which is the source of heat generation, has not been reduced. This invention is an attempt to improve the above-mentioned problems, and utilizes the property that steam dissociates into hydrogen and oxygen when the temperature reaches high temperatures. It is also characterized by being heated to a high temperature to dissociate into hydrogen and oxygen, and by using the heat obtained by burning the hydrogen and oxygen together with the heat of the burner, the amount of fuel used by the burner is reduced. The specific means and effects are as follows. [Means for solving the problem] A water chamber is provided on the outer periphery, and the combustion chamber and smoke chamber are provided in a rigid shape, and the burner is provided in the combustion chamber facing upward.
In a hot water boiler in which multiple endothermic tubes are installed horizontally in the smoke chamber and communicate with the water chamber, a spiral water tube is installed in the combustion chamber that is tightly wound in correspondence with the burner, and the base of the spiral water tube is connected to the above-mentioned endothermic tube. At the same time, an annular water pipe communicating with the tip of the spiral water pipe is placed opposite to the top of the water pipe, a steam chamber is provided in the center of the annular water pipe, and the steam chamber and the annular water pipe are connected to a plurality of pipes. Communication is made through a heat tube. A heating tube formed in a U-shape is communicated with the steam chamber and vertically installed at the bottom of the steam chamber, and a thin heating tube is extended upward from the heating tube, and its upper end is communicated with the expansion chamber, A gas nozzle is provided in the expansion chamber facing upward. [Operation] The hot water in the heating tube supplied to the spiral water tube becomes steam within the spiral water tube through the heating action of the burner, and is sent into the steam room via the annular water tube and the heat collecting tube. The steam is then sent from the steam room to the heating tube,
It is further heated to a higher temperature within the heating tube and heating capillary and dissociated into hydrogen and oxygen. This mixed gas of hydrogen and oxygen is then sent to the expansion chamber, where it is subjected to static pressure, and then injected from a gas nozzle and combusted. The heat of this combustion provides the effect of heating the heat absorption tube. [Embodiments] Specific embodiments of the present invention will be described below with reference to illustrative drawings. In the drawings, 1 is an outer cylinder formed into a cylindrical shape with a lid;
Reference numeral 2 denotes an inner cylinder built into the outer cylinder 1 and formed into a cylindrical shape with a lid, and a water chamber 3 is formed between the outer cylinder 1 and the inner cylinder 2. A combustion chamber 4 is formed in the lower part of the inner cylinder 2, and a burner 5 is attached to the combustion chamber 4 facing upward.
A gas generating device 6, which will be described later, is provided correspondingly. Further, a smoke chamber 7 is integrally formed in the inner cylinder 2 so as to be continuous above the combustion chamber 4.
A chimney 8 is erected upwardly at the top of the chamber, penetrating into the water chamber 3. In the smoke chamber 7, a plurality of sets of heat-absorbing pipes 9 formed by arranging a plurality of pipes horizontally in a line at regular intervals are horizontally hung in a plurality of stages. Each of the heat absorption tubes 9 is installed horizontally with its tip inclined diagonally upward so as to have a gentle upward slope, and the direction of inclination is shifted by 180 degrees for each stage. Each heat absorption pipe 9... is provided with its rear end open and communicated with the water chamber 3, while its tip is connected to the manifold pipe 1.
0 through a throttle hole 11, and the manifold pipe 10 has a relief hole 12 that opens downward and communicates with the water chamber 3. Also, among the manifold pipes 10, the manifold pipe 1 located in the middle stage thereof
0 is connected to a water conduit 13, which is provided so as to communicate with the manifold pipe 10 through a water inlet 13', extends downward, and is connected to the manifold pipe 10 through a flow rate regulating valve 27. It is communicated with the base of the spiral water pipe 14 that constitutes the gas generating device 6 . The helical water pipe 14 is wound in a tapered manner so as to surround the combustion flame of the burner 5 and is erected, and its tip communicates with an annular water pipe 15 installed horizontally opposite the upper part of the helical water pipe 14. . A circular steam chamber 16 is disposed at the center of the annular water pipe 15, and the steam chamber 16 is communicated with the annular water pipe 15 through a plurality of heat collecting pipes 17. More specifically, the heat collecting pipes 17 are arranged at regular intervals so as to have a radial shape in a plan view, and are hung horizontally so as to communicate with the inner peripheral wall of the annular water pipe 15 and the outer peripheral wall of the steam chamber 16. . A U-shaped heating tube 18 having vertical portions 18a, 18a and a horizontal portion 18b is hung from the bottom wall of the steam chamber 16 to a position near the burner 5, and the heating tube 18 is located at a position 8 near the burner 5. A heating thin tube 19a rising vertically from the horizontal portion 18b and heating thin tubes 19b, 19b extending horizontally orthogonally to the horizontal portion 18b and rising diagonally upward are provided, respectively. The tip thereof is connected so as to communicate with the heating thin tube 19a. The heating thin tube 19a extends upward through the steam chamber 16, and its upper end is connected so as to communicate with the bottom of the first expansion chamber 20 disposed above the steam chamber 16. The first expansion chamber 20 is formed by arranging two large and small pipes in parallel in the vertical direction and connecting both ends thereof. Further, in the upper part of the first expansion chamber 20, a second expansion chamber 21 is provided in steps, which is formed by connecting two large and small pipes in the vertical direction and connecting both ends of the pipes, similar to the same expansion chamber 20. , the second expansion chamber 21 and the first expansion chamber 20 are connected via a communication pipe 22. A balance weight 23 formed in a cylindrical shape is fitted into the communication pipe 22 so as to be vertically movable.
The balance weight 23 is provided with a plurality of small through holes 23' formed in a tapered shape along the vertical direction, and a mesh-shaped filter is provided at the upper position of the balance weight 23. 24 is stretched. Moreover, the second expansion chamber 21
A gas nozzle 25 is provided on the upper part of the screen to project upward, and a top plate 26 is provided above the gas nozzle 25.
is placed. The top plate 26 is formed by cutting out a part of a sphere and is curved in a convex shape.
Numerous small holes 26a are bored in the top plate 26, and a non-flammable layer 26 made of glass fiber or the like is provided on the bottom surface of the top plate 26.
b is provided. In other drawings, 28 indicates a drain valve of the spiral water pipe 14 attached to the water conduit, 29 indicates a drain valve of the heating pipe 18, 30 indicates a drain valve of the first expansion chamber 20,
Further, 31 is a water supply pipe connected to the water chamber 3 from the outside,
Reference numeral 32 indicates a hot water supply port provided at the upper part of the water chamber 3, respectively. Next, its effect will be explained. While the water chamber 3 is filled with water, the flow rate adjustment valve 27 is stopped and the residual water in the gas generator 6 is removed by opening the water drain valves 28, 29, and 30. When ignited, the combustion flame heats the gas generation device 6, while the combustion residual heat that heated the gas generation device 6 rises in the smoke chamber 7 and passes through each heat absorption pipe horizontally installed in the smoke chamber 7. Heat 9. By heating the heat-absorbing tube 9 in this way, the water in the heat-absorbing tube 9 is gradually heated to become hot water, and the hot water moves inside the heat-absorbing tube 9 toward the upper end and reaches the manifold pipe 10. However, since the heat absorption tube 9 is communicated with the manifold tube 10 through the throttle hole 11, the amount of flow into the manifold tube 10 is restricted by the throttle hole 11, and the heat absorption tube The residence time of the hot water in 9 becomes longer, and the effect of heating the water to a higher temperature can be obtained. The manifold is then heated like this.

[Effect of idea]

The present invention is constructed as described above.
A part of the hot water heated by the heat absorption tube as described above is sent to the gas generator, the hot water is heated and vaporized in the gas generator, and the vapor is further heated to dissociate into hydrogen and oxygen. By heating the heat absorption tube by using the heat obtained by burning this mixed gas of hydrogen and oxygen together with the heat of the burner, it is possible to reduce the amount of fuel used by the burner, resulting in low operating costs. I was able to get a hot water boiler.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of a hot water boiler according to the present invention, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, Fig. 3 is a cross-sectional view taken along line B-B in Fig. 1, and Fig. 4 is a section of the gas generator. 5 is an enlarged front view of the same, FIG. 6 is a sectional view taken along line C-C in FIG. 4, and FIG.
It is a sectional view taken along the D line. 1...Outer cylinder, 2...Inner cylinder, 3...Water chamber, 4...
Combustion chamber, 5... burner, 6... gas generator,
7... Smoke chamber, 8... Chimney, 9... Heat absorption pipe, 10...
...Manifold pipe, 11... Throttle hole, 12... Relief hole, 13... Water conduit, 13'... Water inlet, 14
... Spiral water pipe, 15 ... Annular water pipe, 16 ... Steam chamber, 17 ... Heat collection pipe, 18 ... Heating pipe, 18a ...
...Vertical part, 18b...Horizontal part, 19b, 19b...
... Heating thin tube, 20 ... First expansion chamber, 21 ... Second
Expansion chamber, 22...Communication pipe, 23...Balance weight, 23'...Through hole, 24...Filter, 2
5...Gas nozzle, 26...Top plate, 26a...Small hole, 26b...Nonflammable layer, 27...Flow rate adjustment valve, 2
8, 29, 30... Water drain valve, 31... Water supply pipe,
32...Hot water inlet.

Claims (1)

[Scope of utility model registration request] There is a water chamber around the outside, and the combustion chamber and smoke chamber are set in a solid shape, and the burner is installed upward in the combustion chamber.
In a hot water boiler in which a smoke chamber has a plurality of endothermic pipes connected to the water chamber installed horizontally, a spiral water pipe is provided in the combustion chamber that is wound tightly in correspondence with the burner, and the base of the spiral water pipe is connected to the endothermic pipe. While communicating with the discharge side of the pipe, an annular water pipe that communicates with the tip of the spiral water pipe is installed opposite to the top of the spiral water pipe, a steam chamber is provided in the center of the annular water pipe, and multiple steam chambers and annular water pipes are connected. At the same time, a heating tube formed in a U-shape is connected to the steam chamber and hung vertically at the bottom of the steam chamber, and a narrow heating tube is extended upward from the heating tube. , a hot water boiler whose upper end communicates with an expansion chamber, and which has a gas nozzle facing upward.