KR910008815Y1 - Vertical type hot-water boiler - Google Patents

Abstract

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Description

Vertical Hot Water Boiler

1 is a longitudinal sectional view of the present invention.

2 is a front view of a part of the present invention incision.

3 is a partial plan view for showing a state in which the blocking plate of the present invention is disposed.

4 is a longitudinal sectional view showing a modification of the present invention.

* Explanation of symbols for the main parts of the drawings

1: boiler body 1a: side wall

1b: upper wall 2: combustion chamber

3: side chamber 4: upper chamber

5: burner 6: year

7: water pipe group 7a: water pipe

7b: gas guide 8: heat exchange pipe

9: heated water inlet 10: cold water outlet

11: cold water inlet pipe 12: hot water outlet pipe

13: heat exchanger 14: flange

15: blocking plate 16: heating outlet pipe

16 ': heating return pipe 17: grate

18: cleaning tool

The present invention relates to a vertical hot water boiler, and more particularly, to a vertical hot water boiler in which the heat transfer efficiency is improved and the liquid fuel and the solid fuel can be selectively used as needed.

In the conventional vertical hot water boiler, the indirect heating type boiler, in which the direct heating water heated in the combustion chamber of the boiler is sent to the heat exchanger, indirectly heats the hot water for heating, and then returns to the heating chamber through the heat exchanger outlet, is connected to the heat exchanger inlet. Since the outlet parts are in communication with each other, some low-temperature direct heating water discharged from the heat exchanger outlet after completion of the heat exchange does not enter the water pipes arranged in the combustion chamber, but is piggybacked by the flow of the direct heating water which is heated in the combustion chamber as it is. Therefore, in the event that the temperature of the direct heating water is maintained at a high temperature, it is not injected into the heat exchanger and mixed with the direct heating water exiting the heat exchange, so that it is re-introduced into the heat exchanger in a state where the temperature is relatively low. The heat exchange efficiency of indirect heated water There is a problem.

In addition, since most conventional vertical hot water boilers are manufactured to use only liquid fuel such as diesel oil or bunker C oil, solid fuel such as coal or wood cannot be used, and it is difficult to make a separate order if necessary. This was followed, and the boiler once installed had the inconvenience of no choice of fuel.

Therefore, the present invention was devised to solve the above problems, and the inlet and the outlet of the heat exchanger are not mixed with the high temperature direct heating water flowing into the heat exchanger and the low temperature direct heating water cooled after the heat exchange in the heat exchanger. By installing a blocking plate in between, the direct heating water flows into the heat exchanger while being heated to a high temperature while passing through the water pipe and the heating chamber, and the low temperature direct heating water passing through the heat exchanger is introduced again into the water pipe to increase the heat exchange efficiency. In the combustion chamber, however, a burner for using liquid / gas fuel and a grate for using solid fuel are provided to provide a vertical boiler in which the fuel can be selectively used as needed.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

According to the present invention, a combustion chamber 2 formed inside the boiler body 1 and a quadrilateral side chamber 3 are formed along the entire circumference of the side wall 1a of the body 1, and the combustion chamber 2 and An upper chamber 4 in communication with the side chamber 3 is formed between the upper wall 1b of the main body 1 and between the burner 5 and the flue 6 installed below the combustion chamber 2. In the middle, both ends are arranged to be inclined such that a plurality of rows of water pipe groups 7 communicated with the front and rear side chambers 3, respectively, from the front to the back, while the water pipe groups 7 are left, right, top, bottom, and bottom. A small diameter water pipe 7a arranged to form a plurality of rows in a direction, and a part of the water pipe 9a arranged in the transverse direction while extending obliquely across the combustion chamber 2 in the left and right directions. In addition to being penetrated, it is suitable to move up and down from the bottom row of the water pipe 7a. With the case is in front, they are shifted from each other in the back arranged burner (5) structure are connected to each other with the combustion gas guide plate (7b) to give guide the flow of gas generated from.

On the other hand, one side wall (1a) of the boiler body (1) is arranged with a plurality of heat exchange pipes (8) inside the heating inlet (9) and the cold outlet (1), and cold water inlet pipe (11) ) And the heat exchanger 13 to which the hot water outlet pipe 12 is connected to each other are installed so that they can be disassembled / assembled through the flange 14, and the heating inlet 9 of the boiler body 1 It is connected to the upper chamber 4, the cold export port 10 is connected to the lower side of the side chamber (3).

On the other hand, between the heating inlet 9 and the low temperature export port 10 inside the front side chamber 3 in which the heat exchanger 13 is installed, the front side chamber 3 is disposed as shown in FIG. The heat exchanger 13 is installed by extending to a part of the left and right chambers 3 completely transversely to separate the heating inlet 9 and the cold outlet 10 of the heat exchanger 3. After the heat exchange in the lower portion of the low temperature water discharged through the outlet 10 is to be prevented from entering the upper chamber (4).

In addition, the heating outlet pipe 16 is installed on the upper wall 1b of the boiler body 1 so that the high temperature direct heating water can be directly extracted from the upper chamber 4 and used for heating. 16) is installed, and a heating return pipe 16 'is installed at the lower part of the side chamber 3 so as to correspond to the heating outlet pipe 16, while wood, coal, etc. are provided at the lower part of the combustion chamber 2; A grate 17 is provided to allow combustion.

Next, the effect of the present invention will be described.

When the combustion operation of the burner 5 starts, the flame and the combustion gas are guided by the gas guide plates 7b arranged in a zigzag at predetermined intervals inside the combustion chamber 2, and are inclined while flowing through the longest path possible. The radiant and convective heat is transferred to the plurality of rows of pipes 7 and then discharged to the year 6, wherein the water contained in each of the pipes 7a constituting the plurality of rows of pipes 7 is at that temperature. As the temperature increases, the water contained in the water pipe 7a inclined due to the density difference becomes high temperature direct heating water and goes up the water pipe 7a inclined due to the density difference as the temperature increases in temperature. Through the rear side chamber (3) is introduced into the upper upper chamber (4) and then enters the heat exchanger (13).

At this time, the direct heating water introduced into the heat exchanger 13 transfers convective heat to the heat exchanger pipe 8 arranged in a plurality of rows to the heat exchanger 13 to indirectly heat the cold water in the heat exchanger pipe 8. Then, as the temperature gradually decreases, the water becomes low temperature water and flows into the water pipe group 7 through the front side chamber 3 through the low temperature water outlet 10 and receives heat into the combustion chamber 2 to perform a reheating operation. It is repeated.

However, in the related art, a part of the low temperature water discharged from the low temperature export port 10 of the heat exchanger 13 flows into the front side chamber 3 and then the water pipe 7a of the water pipe group 7 is caused by the high temperature of the combustion chamber. As it does not flow into the inside and rises upward, it receives heat from the combustion chamber (2) and mixes with the direct heating water flowing into the upper chamber (4) from the water pipe group (7) and the rear side chamber (3), As a result, there was a problem that the heat exchange efficiency is lowered by lowering the temperature of the heated water flowing into the heat exchanger 13. In the present invention, the front side chamber 3 as shown in FIGS. 1 and 3 is designed. And a "c" shaped blocking plate 15 on the upper left and right side chamber chambers 3 and discharged from the cold outlet 10 of the heat exchanger 13 to the front side chamber 3 as described above. In addition to preventing low temperature water from flowing into this front chamber (4), The high temperature water of the upper chamber 4 is prevented from flowing into the water pipe group 7 immediately without flowing into the heat exchanger 13.

Therefore, the blocking plate 15 ensures that the circulation path of the direct heating water in the boiler is always made in only one direction, and is heated in the water pipe group 7 and flows into the heat exchanger 13 through the upper chamber 4. By not being mixed with the cooled low-temperature direct heating water after the high-temperature direct-heated water heat exchange, which is the result, it is possible to improve the overall efficiency of the heat exchanger 13 to increase the temperature of the hot water supply.

In addition, since the heat exchanger 13 is connected to the main body 1 by the flange 14, it is easy to install the boiler, and the heat exchanger 13 can be replaced by a heat exchanger having an appropriate capacity according to the increase or decrease of the hot water load. On the other hand, the grate 17 is installed under the combustion chamber 2 to burn solid fuel such as coal and wood, in which case the solid fuel is burned and scraped through the cleaning tool 18. You can remove me.

On the other hand, Figure 4 is a modification of the present invention, except that the heat exchanger 13 is installed on the side wall (1a) of the burner (5) on the opposite side of the boiler body 1 and its configuration in FIG. And action is the same.

As described in the above description, the present invention is provided with a "c" shaped blocking plate 15 on one side of the side chamber 3 so that the low-temperature water that has undergone heat exchange from the heat exchanger 13 is directly introduced into the upper chamber 4. In addition to preventing this, the low temperature water is led to the mode water pipe group 7 so as to receive heat from the combustion chamber 2 to be reheated, thereby increasing the temperature of the direct heating water to increase the overall efficiency of the heat exchanger 13. It is possible to increase the temperature of the hot water supply, while the heat exchanger 13 is connected to the main body 1 by the flange 14, thereby simplifying the assembly and replacing the heat exchanger having a different capacity according to the hot water load. In addition, there is an effect that the grate 17 is installed to be able to burn solid fuel such as coal or wood.

Claims (1)

The combustion chamber 2, the side chamber 3, and the upper chamber 4 are respectively formed in the boiler main body 1, and the combustion chamber 2 is provided with a plurality of rows of water pipe groups 7 arranged therein, and the main body 1 In a standing hot water boiler in which a heat exchanger (13) is installed in communication between a side chamber (3) and an upper chamber (4) of the side chamber (3), a block for preventing the mixing of cold water and direct heating water on one side of the side chamber (3). The plate 15 is installed, the heat exchanger 13 is connected to the flange 14 so as to be separated from the main body 1, while the lower portion of the combustion chamber 2 has a grate 17 is installed Vertical hot water boiler, characterized in that the.