KR970005179Y1 - Exhaust gas recycle device in gas boiler - Google Patents

Abstract

None.

Description

Flue gas reflux device of gas boiler

1 is a schematic diagram of a combustion gas return device of a gas boiler according to the present invention

2 is a cross-sectional view taken along the line II-II of FIG.

2 (a) is a cross-sectional view when the combustion gas switch is closed,

2 (b) is a cross-sectional view when the combustion gas switch is opened.

3 is an exploded perspective view of the warm air device shown in FIG.

* Explanation of symbols for main parts of the drawings

1: boiler body 2: controller

3: igniter 5: switchgear motor

6, 25: communication 7: switchgear

8: shaft 9: motor housing

12, 13, 14: stopper 15, 16: sensor

19: exhaust fan motor 26: warm air device

30 housing 31 filter

35: grill

The present invention relates to a flue gas reflux device of a gas boiler for maximizing heating efficiency by filtering the flue gas of the gas boiler to blow warm air into each room of a home.

In general, a gas boiler for heating is installed in the home, and when the gas boiler is operated, combustion gas is directly discharged to the outside through the flue.

However, at the present time, where energy such as oil and gas are dependent on foreign countries, efficient use of energy requires not only a national level but also a company and a household to have a profound life in terms of profitability, saving, and frugality.

In particular, from a single firm's point of view, it is not necessary to reconsider energy savings such as gas to improve the profitability of the company due to cost reduction or to improve international competitiveness.

In the past 20 years, companies that use a lot of heat in cost have recognized that waste heat recovery is a shortcut to energy saving.In addition, the efficient use of energy is inevitable in the high oil price era due to the recent Middle East situation. Done.

Therefore, the present invention has been devised in view of the above situation, and the combustion gas discharged through the year of operation of the gas boiler in the home is filtered to blow the warm air into each room to maximize the energy efficiency of the national energy saving movement. The purpose is to provide a flue gas reflux device for a gas boiler that actively participates.

The present invention for achieving the object is a flue gas reflux device of a gas boiler that can generate warm air in each room by using the flue gas of the gas boiler, which selectively sucks the flue gas discharged during operation of the gas boiler Or a switch means for blocking, an exhaust fan means for sending high-temperature flue gas to each room when the switch means is opened, and a high-temperature flue gas forcibly sent by the exhaust fan means to filter each room. It was made by means of warm air to send inside.

According to the present invention, the switch means includes a switch motor that rotates during operation of the boiler, a circular switch connected to the rotating shaft of the motor, a sensor for detecting that the switch is completely closed, and a sensor for detecting that the switch is completely opened. And a stopper for limiting the closing and opening operation of the switch.

In addition, the exhaust fan means is preferably composed of a fan motor, an exhaust fan and an auxiliary fan, and a support for supporting the auxiliary fan, the warm air means is a housing installed on each wall, the housing to filter the combustion gas It is preferable to include a plurality of filters inserted in the grill and a grill for adjusting the wind direction.

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

FIG. 1 shows a schematic diagram of an apparatus for maximizing heating efficiency by blowing warm air into each room by utilizing flue gas of a gas boiler. In FIG. 1, reference numeral 1 denotes a gas boiler body. .

This gas boiler 1 is equipped with the controller 2 which controls the igniter 3 which operates the butter (not shown) of the gas boiler, and also controls the switch motor driver 4. By controlling, the switch motor 5 is operated.

On the other hand, the gas boiler main body 1 is provided with a communication 6 for discharging combustion gas, which is formed in a T-shape as shown in FIG. 1, and the switch 7 is provided therein. It is installed. The switch 7 has a circular shape substantially the same as the inner diameter of the communication, and a central axis 8 is formed at the center of the switch 7, which is shown in detail in FIG. It is configured to penetrate from one end of the communication (6) to the other end.

At one end of the central shaft 8 penetrating the communication 6, a switch motor 5 is mounted, and the motor 5 is contained in a rectangular housing 9.

Thus, the switch motor 5 is contained in the housing 9 by any suitable method (such as bonding or riveting). In addition, packings 10 and 11 are installed at both end portions of the central shaft 8 to ensure the airtightness of the combustion gas. In addition, as shown in FIG. 1, the upper and lower stoppers 12 and 13 for stopping the rotational movement of the motor 5 when the switch 7 is completely closed by the motor 5 inside the communication 6. ) Is formed integrally with the communication (6).

In addition, when the switch 7 is completely opened on the lower side of the communication 6, that is, when the switch 7 is rotated 90 ° clockwise as shown by the dotted line of FIG. 1, the switch 7 is no longer opened. Another stopper 14 is provided.

In addition, the stoppers 12 and 14 are disposed with the sensors 15 and 16 to prevent excessive rotational movement of the motor 5 when the stoppers 12 and 14 are completely closed. When moving to the dotted line in Fig., It provides a signal to the controller 2 to indicate that the switch 7 is fully opened, causing the controller 2 to stop driving the motor 5, and the sensor 15 When the switch 7 is completely closed, a signal is provided to the controller 2 to indicate that the switch 7 is closed, causing the controller 2 to stop driving the motor 5.

Referring again to FIG. 1, the T-shaped communication 6 is connected to a communication 18 having an exhaust fan device by means of a plurality of bolts 17, which are connected to a fan motor 19 and a fan. 19A, an auxiliary fan 20, and a support 21, which are firmly fixed to the communication 18 by the bolt 22.

The fan motor 19 is also firmly fixed to the communication 18 as the bolt 24 by the support 23. And the communication 18 is fastened to another communication 25 connected to each room is connected to a plurality of warm air devices 26 installed in each room.

Figure 3 shows a perspective view of the warm air device 26 used in the present invention, as shown, at least one filter 31 for filtering the combustion gas in the four-sided housing 30 A groove 32 into which the insert can be inserted is formed, and a groove 34 into which the grill 33 to adjust the warm air is inserted is formed.

The grill 33 is provided with a plurality of fasteners 35, which are fastened to the fastening groove 36 formed in the housing 30 to connect the grill 33 to the housing 30. It is made up all the time.

The operation of the present invention configured as described above will be described in detail. First, when the gas boiler 1 is operated, that is, when the igniter 3 is initially operated, the controller 2 controls the switch motor driver 4 driving the switch motor 5 so that the switch 7 is operated by the first switch. Position it as shown by the solid line in the figure.

Then, the igniter 3 operates and the burner operates accordingly, and the combustion gas combusted in the gas boiler 1 exits through the communication 6.

Thereafter, after a predetermined time of about 10 seconds has elapsed since the boiler 1 is operated, the controller 2 operates the switch motor 5 and the fan motor 19. At this time, the switch motor 5 is gradually rotated 90 ° clockwise as shown in FIG. 2 (b), and the motor 5 rotates so that one end of the switch 7 connected to the rotary shaft 8 thereof has a stopper 14. When the sensor 16 installed above is operated, the controller 2 recognizes this and stops the operation of the switchgear motor 5.

Thus, the switch 7 is fully opened as shown by the dotted line of FIG. 1 or the second view of FIG.

At this time, as the fan motor 8 rotates, the exhaust fan 19A is rotated, and the auxiliary fan 20 is rotated so that the flue gas passing through the switch 7 is transmitted to the warm air device 26.

Therefore, hot wind comes out of the warm air apparatus 26 installed in each room.

When the gas boiler 1 is automatically stopped, the controller 2 detects this and rotates the switch motor 5 counterclockwise to close the switch 7.

This is because, even though the operation of the boiler 1 is stopped, if the switch 7 is not closed, external backwind passing through the communication 6 may enter each room through the warm air device 26. Therefore, as soon as the operation of the gas boiler 1 is stopped, the switch motor 5 rotates counterclockwise so that the switch 7 is completely closed with the solid line of FIG. 1 or the second figure (a).

Even when the switch 7 is completely closed, the sensor 15 operates to inform the controller 2 so that the controller 2 prevents excessive driving of the motor 5. At the same time, the controller 2 stops the rotation of the fan motor 19 to prevent unnecessary power consumption.

The present invention, which operates as described above, does not operate the switch for a predetermined time in order to prevent leakage of combustion gas into the room at the beginning of operation of the gas boiler, and automatically opens the switch after a predetermined time and operates the fan motor. By blowing gas into each room, the heating efficiency is improved.

Claims (4)

A flue gas reflux device of a gas boiler capable of generating warm air in each room by using flue gas of a gas boiler; Switch means for selectively sucking or blocking the flue gas discharged during operation of the gas boiler (1); Exhaust fan means for delivering high-temperature flue gas to each room when the switch means is opened; Flue gas reflux device of the gas boiler characterized in that it is configured by the warm air means for filtering and sending the high-temperature flue gas sent by the exhaust fan means into each room. The switchgear according to claim 1, wherein the switch means comprises a switch motor (5) which rotates during operation of the boiler, a circular switch (7) connected to the rotary shaft (8) of the motor (5), and the switch (7) Flue gas reflux device of the gas boiler characterized in that it comprises a sensor (16) for detecting that it is completely closed and a stopper (12, 13, 14) for limiting the operating range of the closing and opening of the switch (7). According to claim 1, wherein the exhaust fan means for supporting the fan motor 8, the exhaust fan (19A) and the auxiliary fan 20 and the auxiliary fan (20) connected to the fan motor (19). Flue gas reflux device of the gas boiler, characterized in that consisting of a support (21). The method of claim 1, wherein the warm air means is a housing 30 which can be installed on the wall of each room, at least one filter 31 inserted into the housing 30 to filter the combustion gas, and adjusts the wind direction Flue gas reflux device of the gas boiler, characterized in that it comprises a grill (33) to.