JPS60149842A - Indirect heating type water heating device - Google Patents

Abstract

PURPOSE:To enable to utilize the amount of heat accumulated in a buffer tank without heat dissipation and obtain the less heat loss indirect heating type water heating device by arranging a buffer tank in a heat receiving body. CONSTITUTION:A buffer tank 3 is arranged in a hot-water storage tank 10, the buffer tank 3 and the lower part of a heat exchanger 2 are connected with a discharging pipe 6 penetrating through the wall of the hot-water storage tank 10. Further, the buffer tank 3 and a heater 4 are connected with a return pipe 7 penetrating through the wall of the hot-water tank 10, a pump 13 is provided on the return pipe 7. Thereby, a heating medium heated by the heater 4 is supplied to the heat exchanger 2 through a supply pipe 5 by the operation of the pump 13, the heat of a water in the hot-water storage tank 10 and the heating medium are exchanged each other in the heat exchanger 2 and utilized for heating the water in the hot-water storage tank 10. Then the heating medium in the heat exchanger 2 is transferred into the buffer tank 3 through the discharging pipe 6, the heat of the heating medium is accumulated in the buffer tank 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an indirect heating boiler apparatus in which a heat receiving body such as a hot water storage tank is indirectly heated by a heat medium passed through a heat exchanger.

[Mon'kei' technique]

When performing heat exchange through the heat medium heated by the boiler (4) to the heat exchanger (2) of the heat receptor (fl) such as the hot water storage tank (10) or the floor heating panel (11), the heating capacity of the boiler (4) is determined. is larger than the heat exchange capacity of the heat exchanger (2), the temperature of the heat medium will rise abnormally, so the boiler (4) is equipped with a A safety device is provided to check the temperature and stop combustion in the boiler (4). Even if combustion in the boiler (4) is stopped, the pump 03) continues to operate and the heat medium is transferred to the boiler (4).
) and the heat exchanger (2), and the heat exchanger (
When the temperature of the heating medium decreases due to the heat dissipation in step 2), combustion in the boiler (4) can be started again. However, the boiler (
4) When this combustion ignition and extinguishing is repeated in a short time,
Problems arise as a result of the so-called chiseta ringing phenomenon, in which noise is produced and the front surface of the boiler (4) is shortened. Therefore, in order to prevent this chatter, there is a
As shown in Figure 2, a buffer tank (al) is installed, and part of the heat from the heat medium circulating between the boiler (4) and the heat receiver (1) is transferred into the buffer shoulder tank (3). The temperature rise rate of the heating medium is adjusted to prevent the temperature of the heating medium from rising to the set temperature of the safety device (I2) of the boiler (4) in a short period of time, thereby preventing the occurrence of chiseta rings. However, in this case, the buffer tank (
3) The heat stored in the interior is not used and is ultimately radiated into the atmosphere and becomes Ds. In particular, the heat generation capacity of the boiler (4) and the heat conversion capacity of the heat exchanger (2) are The larger the difference, the greater this heat loss, which poses an energy saving problem.

[Purpose of the invention]

The invention was made in view of the above points, and the object of the present invention is to provide an indirect heating type boiler equipment line that can utilize the heat stored in the buffer tank without dissipating all of the heat, and has less heat loss. It is something to do.

[Disclosure of originating IJJ]

However, the indirect heating boiler device related to the misfire (g) consists of a heat exchanger (2) provided in the heat receiver (1) and a buffer tank i31 arranged in the heat receiver (1). and a heat exchanger (
A supply pipe (5) that connects the upper part of the heat exchanger (2) and the boiler (4), a discharge pipe (6) that connects the F part of the heat exchanger (2) and the buffer tank (3), and a ) and the boiler (4), and the buffer tank (3) is connected to the heat receiver fl)
The above purpose is achieved by arranging it within.

Hereinafter, the present invention will be used as a heat receptor (1) in a hot water storage tank (lO).
This will be explained by an example using . As shown in Fig. 5, a heat exchanger (2) of the type P1 is attached to the outer periphery of the hot water storage tank (lO).
) and the upper part of the heat exchanger (2) are connected by a supply pipe.The buffer tank (3) is connected to the hot water storage tank (1
The buffer tank (3) and the lower part of the heat exchanger (2) are connected by a discharge pipe (6) that penetrates the wall of the hot water storage tank (10). be. Furthermore, buffer tank (3)
The boiler (4) is connected to the hot water storage tank (10) by a return pipe (I7) that penetrates the wall, and the return pipe (7) is equipped with a pump (I (branch). The heating medium heated by the boiler (4) is heated by the boiler (4).
13), the hot water is supplied to the heat exchanger (2) by the supply pipe (5), and in the heat exchanger (2), the hot water is supplied to the storage tank (10).
The water and heat medium in the tank undergo heat exchange and are used to boil water in the hot water storage tank (10). The heat medium in the heat exchanger (2) is transferred into the buffer tank (3) through the discharge pipe (6), and the heat of the heat medium is stored in the buffer tank +31. Here, it is preferable to put a latent heat storage material such as paraffin in the buffer tank (3) so that heat storage can be carried out efficiently. Next, the heat medium in the buffer tank (3) is transferred to the return pipe (7).
) is returned to the boiler (4). In this way, the heat medium circulates between the boiler (4) and the heat exchanger (2) to boil water in the hot water storage tank (lO).
In addition, since a part of the heat of the heat medium is stored in the buffer tank (3), the heat conversion capacity of the heat exchanger (2) is reduced by the boiler (4).
) Even if the heat generation capacity is lower than that of
By increasing the time it takes for the heat medium to heat up to the set temperature of the safety device of the boiler (4), it is possible to prevent the occurrence of oxidation. When the temperature of the heat medium rises to the set temperature of the safety device (I2), the boiler (4
) is extinguished as in the case of Fig. 1, and when the temperature of the heat medium circulating δ by the action of the pump 3) decreases due to heat exchange by the heat exchanger (2), the boiler ( 4) will be ignited again. In this device, since the buffer tank (3) is located inside the hot water storage tank (lO), the amount of heat stored in the buffer tank (3) is dissipated into the hot water storage tank (10). The hot water storage tank (lO
) will contribute to keeping the water warm. Similarly, the water supplied into the water supply port (11) and the hot water storage tank (10) is heated as described above and is stored as hot water through the hot water supply port (I7).

FIG. 4 shows another embodiment of the present invention, in which the discharge pipe (6) and the return pipe (7) are switched between the valve 5+1.
19 are connected. A pair of passage steel pipes (1) are installed in the closure (09) in the switching valve (18), and in the initial state of boiling water, the discharge pipe (
The heat exchanger (2) side portion (6a) of 6) and the boiler (4) side portion (?a) of the return pipe (7) are communicated through passage 4),
Without passing the heating medium through the buffer tank (3), the boiler (4) and heat 3? are connected as shown by arrow a in Figure 4. ' The circulation δ is exchanged between the exchanger (2) and the exchanger (2). - When the temperature of the heating medium rises to a temperature slightly lower than the set temperature of the safety device (1), this temperature is detected by the heat sensor 122 and the closure (19) is activated by electrical power.
45 As shown in Fig. 45(b), the rotation pipe is connected to the heat exchanger (2) side portion (6a) of the discharge pipe (6) and the buffer tank (3) side portion (O
b) and the boiler (4) side portion (7a) of the return pipe (7) and the buffer tank (3) side portion (
7b) through a passage circle so that the heat medium coming out of the heat exchanger (2) passes through the buffer tank (3) as shown by arrow b in Figure 4, so that the temperature of the heat medium does not exceed this level. This is to prevent the temperature from rising too quickly.

〔Effect of the invention〕

As described above, according to the present invention, the buffer tank is disposed within the heat receiver, so that the heat in the buffer tank, in which part of the heat of the heat medium is stored, is dissipated within the heat receiver. This will be used as heat to heat the M receptor, thereby reducing heat loss.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are schematic diagrams of a conventional example, FIG. 3 is a schematic diagram of an embodiment of the present invention, and FIG. 4 is a schematic diagram of another embodiment of the same.
FIGS. 5(a) and 5(b) are enlarged sectional views of a portion of the same as above. Il+ is the heat receiving body, (2) is the heat exchanger, (3) is the buffer tank, (4) is the boiler, (5) is the Hongei pipe, (6) is the discharge pipe, and (7) is the return pipe. be. Agent Patent Attorney Ishi 1) Chief 7 Figure 1 Figure 4

Claims (1)

[Claims] 111 A heat exchanger provided in the heat receiver, a buffer tank provided in the heat receiver, a supply a connecting the upper part of the heat exchanger and the boiler, and a lower part of the heat exchanger and the buffer tank. 1. An indirect heating type boiler device comprising: a discharge pipe connecting the buffer tank and the boiler; and a return pipe connecting the buffer tank and the boiler.