KR100201317B1 - The atmosphere open type gas furnace - Google Patents

Abstract

The present invention suppresses the occurrence of lack of heating water due to overflow by restraining the overflow of the heating water due to abnormal boiling and expansion of the remaining air in the heating pipe, thereby heating at night. The present invention relates to an atmospheric open gas boiler that prevents the boiler from shutting down due to lack of water.

Gas boiler of the present invention is a heating return pipe (6), circulating pump (8), heat exchanger (9) for heating the heating water, heating water supply pipe (10), water supplement pipe (11) to replenish the heating water, the In the open-air gas boiler including the supplementary water valve 12 installed on the water filling pipe (11), the separator 25 is formed so as to be discharged only when the heating water level is above a certain level, the separator 25 A casting tank 20 having a passage plate 26 formed around the lower portion and extending to a lower side to form a passage, and having an outlet 21 formed therein; The outlet 31 is formed, the inlet pipe 32 is installed therein, the separator extending from the lower portion to the upper portion so that the heating water is discharged through the outlet 31 only when the heating water level is above a certain level ( An auxiliary tank 30 in which 33 is configured; And it includes a connection pipe 40 for connecting the inlet pipe 32 of the outlet 21 and the auxiliary tank 30 of the casting tank 20.

Description

Atmospheric Open Gas Boiler

The present invention relates to an atmospheric open gas boiler in which the heating water is in communication with the atmosphere, and more particularly, the occurrence of overflow of the heating water due to abnormal boiling and expansion of residual air in the heating pipe. The present invention relates to an atmospheric open gas boiler that suppresses the phenomenon of lack of heating water due to overflow and thereby prevents the boiler from stopping due to lack of heating water at night.

In general, a gas boiler burns gas using fuel, heats water using heat generated during the combustion process, and circulates the heated water along a heating pipe in a room to heat the bathroom, sink, and the like. It has a function of supplying hot water.

In addition, the gas boiler may be classified into an open air gas boiler in which heating water communicates with the atmosphere, and an air blocking gas boiler in which the heating water is blocked from the atmosphere.

1 is a schematic configuration diagram of an atmospheric open gas boiler according to a conventional embodiment.

As shown, a conventional atmospheric open gas boiler is a gas inlet pipe 1 through which external gas is introduced, and a gas valve 2 installed on the gas inlet pipe 1 to adjust a pressure of a gas supplied to a burner. , The burner (3) which burns by mixing the gas and air introduced through the gas inlet pipe (1), the flue (4) for discharging the burned exhaust gas, and the intake air at the same time as the burner (3) And an exhaust fan 5 for forcibly discharging the exhaust gas.

In addition, the gas boiler is a water tank for temporarily storing the heating water returned as installed on the heating return pipe (6), the heating return pipe (6) to return the heating water from the heating pipe (not shown) in the room to be heated. (7), a circulation pump (8) for circulating the heating water, a heat exchanger (9) for heating the heating water, a heating water supply pipe (10) for supplying the heated heating water to the heating pipe, a water supplement for replenishing the heating water Tube 11, supplemental water valve 12 installed on the water supplement pipe 11, direct water supply pipe 13 for supplying direct water to the heat exchanger 9 when using hot water, hot water for discharging hot water heated in the heat exchanger Supply pipe 14, and a flow switch (15) for detecting the flow of direct water when using hot water is configured.

The atmospheric open gas boiler as described above works as follows.

The heating water is circulated by the circulation pump, which is returned from the heating pipe of each room through the heating return pipe 6 and stored in the water tank 7, and then enters the heat exchanger 9 via the circulation pump 8. The heating water is heated by the combustion heat of the gas in the heat exchanger 9 and then supplied to the heating pipes in each room through the heating water supply pipe 10.

Then, when hot water is used, the direct water enters the heat exchanger 9 through the direct water supply pipe 13 and is heated by heat exchange with the heating water in the heat exchanger 9 and then supplied to the user through the hot water supply pipe 14. At this time, the flow switch 15 senses the flow of direct water and outputs a signal to the control device that the user is using hot water.

In the gas boiler as described above, the water tank 7 serves to absorb the pressure change of the heating water during contraction and expansion of the heating water and to compensate for the slight lack of the heating water. That is, when the heating water is heated and expanded, the water level in the water tank 7 rises, and when the heating water evaporates or contracts, the water level in the water tank 7 decreases so as to alleviate the pressure change of the heating water and always fill the proper heating water in the heating pipe. Doing.

If there is excessive heating water in the heating pipe, the level of the heating water in the water tank 7 rises and is discharged into the atmosphere through the over-proof pipe 17. When the heating water is insufficient, the heating water level in the water tank 7 is lowered, and when the water level is lowered by a certain level, the float switch 16 operates to stop the operation of the boiler.

When the boiler is stopped due to lack of heating water, the corresponding lamp of the control device is turned on, so the user opens the supplemental water valve 12 to replenish the direct water to the heating pipe. That is, replenish the heating water manually.

As described above, in the open-air gas boiler to manually replenish the heating water when the heating water is insufficient, the heating water level in the water tank 7 is increased due to abnormally excessive boiling of the heating water or expansion of residual air in the heating pipe. Heating water is discharged to the outside through the overflow pipe (17). In this state, when the temperature of the heating water returns to normal, the heating water level in the water tank 7 is lowered and, in severe cases, the boiler is stopped due to the lack of heating water.

In this case, the user must manually replenish the heating water by opening the replenishing water valve 12, but if the above-mentioned phenomenon occurs at night while sleeping, the heating water is not replenished, and thus, the boiler is stopped at night. There is a problem of having a cold night.

In order to solve the above problems, the size of the water tank 7 may be increased to prevent the heating water from overflowing, but in this case, the overall size of the boiler may be increased, thereby increasing the size of the water tank 7. Can not be adopted without permission.

The present invention has been made to solve the above problems of the prior art, the heating water due to the abnormal boiling of the heating water or the expansion of the remaining air in the heating pipe without increasing the water tank and accordingly the overall size of the boiler. It is an object of the present invention to provide an atmospheric open gas boiler which prevents the boiler from shutting down due to lack of heating water by preventing the exhaust pipe from being completely discharged into the atmosphere.

Atmospheric opening type gas boiler of the present invention for achieving the above object is a heating return pipe for heating water is returned, a circulating pump for circulating the heating water, a heat exchanger for heating the heating water, heating water for supplying the heated heating water to the heating pipe An atmospheric opening type gas boiler comprising a supply pipe, a water supplement pipe for replenishing heating water, and a supplemental water valve installed on the water supplement pipe; A casting tank installed on the heating return pipe, the outlet tank configured to discharge heating water when the heating water overflows; In the case of storing the heating water discharged from the casting tank, an outlet is formed at one side of the lower wall, and an inlet pipe extending from the upper side to the adjacent position of the lower surface is installed at the inner center and the heating water level becomes higher than a certain level. An auxiliary tank having a separator extending from a lower portion to an upper portion so that only the heating water is discharged through the discharge hole; And it characterized in that it comprises a connecting pipe for connecting the inlet pipe of the outlet and the auxiliary tank of the casting tank.

1 is a schematic configuration diagram of a conventional atmospheric gas boiler;

2 is a configuration diagram showing a partial structure of a gas boiler according to the present invention.

Explanation of symbols for main parts of the drawings

1: gas inlet pipe 2: gas valve

3: burner 4: year

5: exhaust fan 6: heating return pipe

7: water tank 8: circulation pump

9: heat exchanger 10: heating water supply pipe

11: Water refill pipe 12: Refill water valve

13: direct water supply pipe 14: hot water supply pipe

15: flow switch 16, 23: float switch

17: overflow pipe 20: casting tank

21, 31: outlet 22, 24: sealing material

25, 33: separator 26: passage plate

30: auxiliary tank 32: inlet pipe

40: connector

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

2 is a configuration diagram showing a partial structure of a gas boiler according to the present invention.

In the gas boiler according to the present invention, parts not shown in FIG. 2 are the same as those in FIG. 1. That is, the heating return pipe (6) in which the heating water is returned from the heating pipe in the heating room, the circulation pump (8) for circulating the heating water, the heat exchanger (9) for heating the heating water, and the heated heating water Heating water supply pipe (10) to be supplied to the piping, water supplement pipe (11) for replenishing the heating water, supplemental water valve (12) installed on the water supplement pipe (11), direct water when using hot water to the heat exchanger (9) The hot water supply pipe 13 for supplying, the hot water supply pipe 14 for discharging the heated hot water from the heat exchanger 9, and the flow switch 15 for detecting the flow of direct water when the hot water is used.

The gas boiler of the present invention has a water tank structure that specifically absorbs the pressure change of the heating water during contraction and expansion of the heating water and supplements it when the heating water is slightly insufficient in the heating pipe.

That is, the present invention is installed on the heating return pipe (6), the casting tank 20 is composed of a discharge port 21 for discharging the heating water when the heating water overflows, and the heating water discharged from the casting tank 20 As it stores, the outlet 31 is formed on one side of the lower wall and the inlet pipe 32 extending from the upper side to the adjacent position of the lower surface is installed in the inner center and only when the heating water level is above a certain level Auxiliary tank 30, which is composed of a separator 33 extending from the bottom to the upper side so that the heating water is discharged through the outlet 31, and the outlet 21 and the auxiliary tank 30 of the casting tank 20 It includes a connection pipe 40 for connecting the inlet pipe (32).

In the casting tank 20, a sealing material 22 is inserted between the upper case and the lower case in order to improve airtightness, and the sealing material 24 is also configured in the installation portion of the float switch 23 of the upper case. The upper case and the lower case of the casting tank 20 are fastened by bolts after inserting the sealing material 22 or ultrasonic welding after inserting the sealing material 22. Therefore, the airtightness of the casting tank 20 is greatly improved compared with the case of only ultrasonic welding without a conventional sealing material.

The upper case and the lower case of the auxiliary tank 30 performs ultrasonic welding without a sealing material as in the conventional case.

In the casting tank 20, a separator 25 extending from the bottom to the top is configured to be discharged only when the heating water level is higher than a predetermined level. When the heating water is overheated and the temperature is lowered and the pressure becomes lower than atmospheric pressure, the heating water once moved to the auxiliary tank 30 is returned to the casting tank 20 so as to return to the casting tank 20. The channel | path board 26 which forms the heating water path is formed in this.

The inlet pipe 32 of the auxiliary tank 30, the connecting pipe 40, the passage formed by the separator 25 and the case wall of the casting tank 20, and the separator 25 and the passage plate 26 The passage forms a siphon passage through which the heating water flows when the heating water of the auxiliary tank 30 returns to the casting tank 20 due to the pressure difference.

The atmospheric open gas boiler of the present invention configured as described above operates as follows.

If the heating water level of the casting tank 20 rises more than a predetermined time due to abnormal boiling of the heating water and expansion of the remaining air in the heating pipe, the heating water passes over the separator 25 and the casting tank 20 through the outlet 21. Exit Subsequently, the heating water enters the auxiliary tank 30 through the inlet pipe 32 of the connecting pipe 40 and the auxiliary tank 30.

As such, when the heating water of a predetermined level or more moves from the casting tank 20 to the auxiliary water tank 30, the heating water level of the casting tank 20 is lowered, so that the float switch 23 operates, and thus the operation of the boiler is stopped.

As described above, when the boiler water is stopped and the heating water temperature is not lowered or the boiler is not stopped, the abnormal boiling and the expansion of the residual air in the heating pipe are eliminated, so that a negative pressure is generated in the heating pipe and the siphon effect is generated. The water in the auxiliary tank 30 is moved to the casting tank 20 by the. At this time, since the airtightness of the casting tank 20 is good, it does not interfere with suction of the water of the auxiliary tank 30 by the pressure difference with atmospheric pressure.

As described above, the present invention does not discharge the heating water completely to the outside when the abnormal boiling of the heating water and the residual air expansion in the heating pipe occur, but temporarily stores the auxiliary water in the auxiliary tank 30, and then again when the state of the heating water becomes normal. Since the return to the casting tank 20, the phenomenon that the heating water is insufficient due to the abnormal boiling of the heating water and the remaining air expansion in the heating pipe does not occur.

In the present invention, the size of the casting tank 20 is made as small as possible, and the auxiliary tank 30 may be formed in a suitable size and shape to fit the free space in the boiler, thereby reducing the size of the boiler.

As described above, the atmospheric open gas boiler of the present invention does not completely discharge the heating water during the boiling of the abnormal boiling water and the remaining air expansion in the heating pipe, and thus, the heating water shortage does not occur. It is effective to prevent the boiler from shutting down due to abnormal heating water at night.

In addition, since the auxiliary tank is installed in the free space of the boiler without increasing the size of the casting tank in order to prevent the heating water is completely discharged to the outside, the overall size of the boiler does not increase.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made within the spirit and scope of the invention, and such changes or modifications are consequent to the appended claims. You will have to belong to the range.

Claims (4)

A heating return pipe 6 through which the heating water is returned, a circulation pump 8 circulating the heating water, a heat exchanger 9 for heating the heating water, a heating water supply pipe 10 for supplying the heated heating water to the heating pipe, In the atmospheric opening type gas boiler comprising a water supplement pipe (11) for replenishing the heating water, a supplementary water valve (12) provided on the water supplement pipe (11), As installed on the heating return pipe 6, the separator 25 is formed so as to be discharged only when the heating water level is above a certain level, and the passage plate surrounding the separator 25 and extending to the lower side to form a passageway. (26) is formed, the casting tank 20 is formed with an outlet 21 for discharging the heating water when the heating water overflows; As the storage of the heating water discharged from the casting tank 20, the outlet 31 is formed on one side of the lower wall, the inlet pipe 32 extending from the upper side to the adjacent position of the lower surface is installed therein Auxiliary tank 30, the separator 33 extends from the bottom to the upper portion so that the heating water is discharged through the outlet 31 only when the heating water level is above a certain level; And Connecting pipe 40 for connecting the inlet pipe 32 of the outlet 21 and the auxiliary tank 30 of the casting tank 20 Atmospheric opening type gas boiler comprising a. According to claim 1, The casting tank 20 is a sealing material 22 is inserted between the upper case and the lower case for airtightness, the upper case and the lower case is bolted or ultrasonic after the insertion of the sealing material 22 Atmospheric opening gas boiler characterized in that coupled by welding. The method of claim 1 or 2, wherein the casting tank (20) is an atmosphere open gas boiler characterized in that the sealing member 24 is inserted into the installation portion of the float switch (23). The method according to claim 1, wherein the auxiliary tank (30) is an atmosphere open gas boiler characterized in that the upper case and the lower case is coupled by ultrasonic welding without inserting a sealing material therebetween.

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