KR101969455B1 - Pellet combustion device with reserved ignition function - Google Patents

Abstract

A pellet combustion apparatus having a scheduled ignition function disclosed is a combustion object composed of a material which remains ash by combustion; A crater provided to a combustion space of the combustion object; An ignition unit for supplying combustion heat to the combustion object supplied to the crater; Ash cleaning unit for discharging the ash remaining in the crater to the outside by the combustion of the combustion object; And receiving the reservation operation time of the ignition unit from the outside, and comparing the reservation operation time with the current time to operate the re-cleaning unit before a set time prior to the reservation operation time to remove the ashes from the crater. It includes; the system control unit for operating the ignition unit at the time of operation.

Description

Pellet combustion device with reserved ignition function

The present invention relates to a pellet combustion apparatus, and more particularly, to a pellet combustion apparatus having a reservation ignition function which enables ignition to be automatically performed at a set time using a timer.

This section provides background information related to the present disclosure which is not necessarily prior art.

Various boilers commonly used are heated by heating the heat energy of combustion heat to water in the chamber through a water chamber installed on the combustion chamber or a spiral pipe, with the heat source (ie flame) ignited by the burner rising vertically. Hot water is supplied.

In the case of conventional boilers using conventional fossil fuels, since the cost of fuel is difficult to maintain, recently, the use of boilers using alternative fuels replacing fossil fuels is increasing.

Pellet boilers are widely used as one of the boilers using alternative fuels. Pellet boilers are pellets made of pellets formed into small cylindrical shapes through crushing, drying, and compacting processes such as plants and trees.

Prior arts include Korean Patent Publication No. 10-2012-0038323.

1 shows a system configuration for controlling a conventional pellet combustion apparatus, referring to FIG. 1, a conventional pellet combustion apparatus includes a pellet fuel container (a) for storing pellets and a pellet supply device (b) for supplying pellets to a fireball; A fireball (c) which is a place where the pellet is burned, and an ignition device (d) which is an apparatus for initially igniting the pellet. There is an operating device (e) for setting ON / OFF and temperature / time, and a display device (h) and a display device (i) for displaying the set value, and there are harmful elements such as gas or smoke generated when the pellet burns in the fire. It consists of a gas and smoke discharge driver (f) and a discharge communication (g) for discharging gas.

In the system block diagram of FIG. 1, when the ON button of the operation device e is pressed to turn on the pellet combustion device, the pellet fuel container b after the ignition coil of the ignition device d is heated and a sufficient heating time has been reached. The pellet at is introduced into the fireball (c) through the pellet supply device (a) and the initial ignition (ignition) is made by the heated coil of the ignition device.

Once the initial ignition is made, the coil of the ignition device (d) turns off the heating and burns using the fire of the ignited pellets already in the fireball.

At this time, various setting values (temperature, time, etc.) are displayed on the display device i by the display device Driver (h) by the operating device e.

Temperature set by the operating device (e). According to the time (pellet supply time), the pellet in the pellet fuel container (b) is repeatedly injected into the fireball (c) through the pellet supply device (a) and burned.

At this time, the generated gas or smoke is discharged out through the communication g by the operation of the motor (blower) which is the gas / smoke discharge driver f.

When OFF is pressed on the control unit (e), the pellet supply is stopped immediately, and the pellets that have already been put into the crater need some time until they are completely burned. It is difficult to do so, and the fireball needs to be cleaned for the next ignition.

On the other hand, in order to turn on such a conventional pellet combustion device again, the remaining debris or ash in the fireball c must be cleaned before the ON button of the operating device e is pressed.

Otherwise, if the ash is left ON, pellets are supplied to the ash, so the initial ignition is performed by the heated coil of the ignition device (d). When a large amount of pellets accumulate in the crater and continuous heat is applied, ignition occurs at any moment. Too many pellets are burned at one time, so it may burn as if it explodes, causing a fire.

For this reason, the conventional pellet combustion apparatus has a problem that it is impossible to give a function to reserve by setting the ignition time in advance.

1. Korean Patent Publication No. 10-2012-0038323

DISCLOSURE OF THE INVENTION An object of the present invention is to provide a pellet combustion device having a reserved ignition function.

DISCLOSURE OF THE INVENTION One object of the present invention is to provide a pellet combustion apparatus having an automatic cleaning function for removing ash remaining in the crater before the scheduled ignition time.

Here, a summary of the present invention is provided, which should not be understood as limiting the scope of the present invention (This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).

In order to solve the above problems, a pellet combustion device having a pre-ignition function according to an aspect of the present invention, the combustion object composed of a material remaining ash by combustion; A crater provided to a combustion space of the combustion object; An ignition unit for supplying combustion heat to the combustion object supplied to the crater; Ash cleaning unit for discharging the ash remaining in the crater to the outside by the combustion of the combustion object; And receiving the reservation operation time of the ignition unit from the outside, and comparing the reservation operation time with the current time to operate the re-cleaning unit before a set time prior to the reservation operation time to remove the ashes from the crater. It includes; the system control unit for operating the ignition unit at the time of operation.

A pellet combustion apparatus having a pre-ignition function according to an aspect of the present invention, wherein the ash cleaning unit comprises: a ash discharge communication provided to a passage through which ash remaining in the crater is discharged by combustion of the combustion object; And ash discharge blower for blowing the ashes to the ash discharge communication; may include.

A pellet combustion apparatus having a pre-ignition function according to an aspect of the present invention, comprising: a gas / smoke exhaust communication provided as a path through which gas or smoke generated by combustion of the pellets is discharged from the fireball to the outside; And the gas / smoke exhaust communication is provided separately from the ash discharge communication.

In a pellet combustion apparatus having a pre-ignition function according to an aspect of the present invention, the apparatus further comprises a temperature sensor for sensing the temperature of the crater, wherein the system control unit is configured to determine the temperature detected by the temperature sensor. The re-cleaning unit is operated in a state lower than the set reference temperature.

In the pellet combustion device having a pre-ignition function according to an aspect of the present invention, the ash discharge communication, the internal communication provided to the passage through which the ash is discharged; and the structure surrounding the outer surface of the internal communication is disposed External communication; As an external communication through which air is introduced from the outside through a gap formed between the internal communication and.

In a pellet combustion apparatus having a pre-ignition function according to an aspect of the present invention, the air introduced through the gap between the internal communication and the external communication is guided to enter the re-discharge blower. .

A pellet combustion apparatus having a pre-ignition function according to an aspect of the present invention, further comprising: a combustion object storage container in which the combustion object is stored; and a combustion object supply unit supplying the combustion object to the crater; The combustion object is characterized in that it is prepared by any one of pellets, sawdust, wood.

In a pellet combustion apparatus having a reservation ignition function according to an aspect of the present invention, the system control unit controls the operation of the ash cleaning unit to be made independently by a command input from the outside. do.

A pellet combustion apparatus having a reservation ignition function according to an aspect of the present invention, comprising: a manual function in which the reservation operation time is input by a user, and the combustion operation time is input by a user and stored in an inactive memory. It has an automatic function set by the system control unit on the basis of the condition, and the combustion condition is characterized in that the operating cycle or operating temperature.

According to the invention, since the ash remaining in the crater by the system control unit is removed by the ash cleaning unit, it is possible to implement the reservation ignition function.

According to the present invention, it is possible to eliminate the risk of fire by detecting the temperature of the fireball by the temperature sensor before the operation of discharging the ash by the ash cleaning unit so that the re-discharging operation is performed only at or below the set reference temperature.

According to the present invention, the reservation operation time can be set manually or automatically, thereby greatly improving the user's convenience.

1 is a system configuration for controlling a conventional pellet combustion device.
2 is a system configuration diagram of a pellet combustion device having a pre-ignition function according to an embodiment of the present invention.
3 is a system flow diagram of a pellet combustion apparatus having a pre-ignition function according to an embodiment of the present invention.

Hereinafter, an embodiment of implementing a pellet combustion device having a reservation ignition function according to the present invention will be described in detail with reference to the drawings.

However, the spirit of the present invention is not to be limited by the embodiments described below, the possible embodiments thereof, and those skilled in the art who understand the spirit of the present invention are included within the scope of the same technical idea as the present disclosure. Embodiments may be easily proposed by a method of substitution or modification, but this is also included in the technical spirit of the present invention.

In addition, the terms used below are selected for convenience of description, and therefore, in grasping the technical contents of the present invention, they should be appropriately interpreted as meanings corresponding to the technical idea of the present invention without being limited to the dictionary meanings.

2 is a system configuration diagram of a pellet combustion device having a reservation ignition function according to an embodiment of the present invention, and FIG. 3 is a system flowchart of a pellet combustion device having a reservation ignition function according to an embodiment of the present invention.

2 and 3, the pellet combustion device 100 having the reserved ignition function according to the present embodiment includes a combustion object b, a fireball c, an ignition part d, a ash cleaning unit j, k) and a system control unit (MCU).

The combustion object (b) may be any material as long as ash remains by combustion.

Combustion object (b), the pellet will be representative, but may also include sawdust, wood, blocks made by compressing hay, and the like.

The crater c is a configuration provided to the combustion space of the combustion object b.

In the crater (c), the ash generated by the combustion of the combustion object (b) is accumulated, the removal of this causes a great inconvenience to the conventional user as well as a major obstacle to the reservation operation.

The ignition unit d is configured to supply combustion heat to the combustion object b supplied to the fireball c, and may be configured as a coil heated by an externally supplied power source.

The ash cleaning units j and k are configured to discharge ash remaining in the fireball c by the combustion of the combustion object b to the outside.

As a result, an automatic cleaning function is achieved, and as a result, scheduled combustion is possible.

The system control unit (MCU) controls the operation of the combustion device as a whole, but receives the reservation operation time of the ignition unit d from the outside, compares the reservation operation time with the current time, and restarts it before the set time than the reservation operation time. The cleaning unit (j, k) is operated to remove ashes from the crater (c), and the ignition unit (d) is operated at the scheduled operation time.

Here, the system control unit MCU may control the operation of the recleaning units j and k to be independently performed by a command input from the outside.

That is, even if there is no reservation operation command, it is possible to perform the operation of the cleaning unit (j, k).

In addition, the system control unit (MCU) has a manual function in which the reservation operation time is input by the user, and an automatic function set by the system control unit on the basis of combustion conditions inputted by the user and stored in the inactive memory. It is provided to have.

Here, the combustion conditions are characterized in that the operating cycle or operating temperature.

The operation cycle means that the operation is performed at a specific time on a specific day or a specific date, and includes repeating on a specific day or a specific date.

The operating temperature means sensing the ambient temperature and determining whether to operate. This can be used to prepare for unexpected situations such as suddenly falling temperatures. It can also perform the function of maintaining a certain space at a constant temperature.

On the other hand, in this embodiment, it is preferable that the ash cleaning unit j and k is comprised with the ash discharge communication k and the ash discharge blower.

The ash discharge communication k is provided as a passage through which ash remaining in the fireball c is discharged by the combustion of the combustion object b.

The end of the ash discharge k may be exposed to the outside or connected to a reservoir for collecting ash.

The ash discharge blower is configured to blow ash into the ash discharge communication k.

Here, it is preferable that the re-discharge communication k is provided by what is called double communication.

Specifically, it is preferable to have an internal communication provided as a passage through which ash is discharged, and an external communication in which a structure surrounding the outer surface of the internal communication is arranged, and having external communication into which air is introduced from the outside through a gap formed between the internal communication and the internal communication. Do.

According to this, since the heat of ash is cooled by the air which flows in from the outside, it is possible to prevent the burn hazard by contact with the ash discharge communication k.

On the other hand, the air introduced through the gap between the internal communication and the external communication is preferably guided to be introduced into the re-discharge blower.

According to this, it is effective to cool the temperature of the fireball c by external air.

On the other hand, in the present embodiment, it is preferable to further include a temperature sensor for sensing the temperature of the crater (c). This is because there is a risk of fire or burns when ash is discharged to the outside by the ash cleaning unit (j, k) while maintaining a high temperature.

To this end, the system control unit MCU controls the recleaning units j and k to operate only when the temperature sensed by the temperature sensor i is lower than the set reference temperature.

On the other hand, in this embodiment, the gas and smoke discharge communication g provided by the path | route which the gas or smoke which generate | occur | produces by the combustion of the pellet b is discharged | emitted from the fireball c to the outside is provided, and the gas and smoke discharge communication is provided. (g) is provided separately from the ash discharge communication (k).

In addition, in this embodiment, of course, it has the combustion object storage container b in which the combustion object b is stored, and the combustion object supply part a which supplies the combustion object b to the fireball c.

Hereinafter, with reference to the drawings disclosed in Figures 2 and 3, the system configuration and flow of the pellet combustion device 100 having a reserved ignition function according to the present embodiment will be described in detail.

First, referring to FIG. 2, the apparatus includes a conventional system component of FIG. 1 and is configured to enable automatic cleaning and reservation ON / OFF.

There is a pellet fuel container (b) for storing pellets as fuel for the stove and a pellet supply device (a), which is a device for supplying pellets to the crater, and a crater (c) where the pellets are burned.

In the fireball (c), the gas, smoke, etc. generated when the pellets are burned should be discharged out. Generally, it is discharged by using a motor (pump).

A gas and smoke discharge communication g connected to the gas and smoke discharge driver f for driving the motor is provided.

There is an operation device (e) of a button for turning on / off the stove and when it is turned on, there is an ignition device (d) that ignites the pellets by heating the coil for initial ignition. . There is a display device Driver (h) and a display device i for displaying the set value of the time setting button.

The ash discharge driver (j) for the automatic cleaning of the crater (c), which is an element of the present invention, and the ash discharge communication (k) for discharging the ashes are provided separately.

In addition, the button for setting reservation ON / OFF has reservation setting device (m), and this device can be set by selecting manual / auto for reservation ON / OFF, and reservation of system (hearth) according to manual / auto reservation. / OFF will be different.

At this time, there is EEPROM (n) which saves the setting value (manual / auto. ON / OFF time, day of the week ..) etc. This EEPROM (n) is an inactive memory that maintains the setting value even when the system (fireplace) is turned off. Consists of

Manual / auto saved when the system is powered on. It reads the ON / OFF time from EEPROM (n) and operates with the value already set.

In addition, in order to automatically clean the fire zone (c), there is no risk of fire when the residue or ash in the fire zone (c) is sufficiently cooled to discharge the ash when the temperature is low. There is).

This temperature sensor 1 is also used for discharge, but it is also used to prevent overheating to turn off the system (hearth) when there is a risk of fire due to overheating when the hearth is in operation.

Specifically, in FIG. 2, the MCU executes ON / OFF according to the contents (ON / OFF) set by the reservation setting device (m), but before the system (hearth) is turned ON when the ON reservation is made. First of all, by driving the re-discharge driver (j) to discharge the residue or ash in the crater (c) through the re-discharge communication (k) first.

At this time, it does not send out unconditionally but discharges when the temperature of the temperature sensor (1) is sensed at a low enough temperature without fear of fire even if the ash in the fireball (c) is taken out.

In this case, the ash in the fireball (c) is cleaned, so when the ON reservation time, the pellet of the fuel container (b) is introduced into the fireball (c) through the supply device (a) and can be safely ignited. Ignite at the scheduled time without people to warm up the space. Therefore, it is possible to drastically reduce the trouble of ignition after cleaning and the time to wait until the space is warmed up.

In addition, it is possible to provide a user convenience and time savings by allowing the reservation to be divided manually and automatically.

Next, referring to FIG. 3, the present invention relates to a pellet stove system capable of both ON / OFF by a button of the reservation ON / OFF and the operation device e.

First, when the reservation is not made, only the button of the operating device (e) turns on the pellet fuel tank (b) through the pellet feeder (a) when it is time for the coil of the ignition device (d) to be heated and sufficiently heated. Pellet at will accumulate in the crater (c).

This is the initial ignition of the pellets for the first time, if the ash or debris remains in the crater (c) during the initial ignition is not well done.

When pellets are accumulated in the fireball (c), the initial ignition is performed by the heated coil of the ignition device (d), and then the heating of the coil of the ignition device (d) is turned off and the fire of the ignited pellets in the fireball (c) is subsequently turned off. The pellets are fed to the fuel container and combusted.

Gas or smoke is generated by the combustion of the pellet. Generally, the gas and smoke discharge driver (f) using a motor (pump) is driven to discharge out through the gas and smoke discharge communication g.

It is a double-communication that discharges the hot gas and smoke inside and sucks cold new air on the outside to supply air circulation and oxygen.

In addition, since the outside air comes in cold air, the risk of burns can be prevented.

It is also provided in the ash discharge communication k.

Even if the combustibility of the pellet is good, the remaining residue or ash remains in the burner (c).

This ash must be cleaned before turning on the stove next time to make the initial ignition smooth.When turning on the stove without cleaning the fireball, the initial ignition does not work well due to the ash, and there are a lot of pellets in the crater (excess). If the ignition occurs at any moment by the coils being applied, the large amount of pellets may be ignited at once, resulting in a fire hazard.

Therefore, in the present invention, the fireball is automatically re-discharged driver (j) before ON to clean the ashes of the fireball through the re-discharge communication (k). Cleaning is carried out when the temperature is low enough and there is no risk of fire even if the ash is discharged out.

By automatically cleaning the ashes in the crater, the initial ignition by the ashes in the crater is performed smoothly, thus eliminating the risk of fire and eliminating the trouble of having to clean one by one.

Since the crater is automatically cleaned, reservation can be made smoothly because the initial ignition can be made smoothly. In the case of the office, if the stove is turned on in advance in accordance with the time of work, there is an advantage that the work can be performed immediately at the time of work.

Reservation ON / OFF can be implemented in two ways, manual or automatic.

In the case of manual reservation, the ON reservation is set first by pressing the reservation button of the reservation setting device (m) while the current stove is OFF. It will set & indicate how many minutes you want to turn ON.

On the contrary, if the reservation button of the reservation setting device (m) is pressed while the current stove is ON, the display device (i) shows what time it is. It will set & display the number of minutes to turn OFF. At this time, the setting contents and the display contents are stored in the nonvolatile memory EEPROM (n) and reflected in the next operation.

In the case of automatic reservation, set the ON time (hours and minutes) of the stove. OFF time setting. The current time setting and the ON / OFF for each day of the week are set through the reservation setting device (m) and the contents are displayed and stored in the EEPROM (n).

When the current time becomes ON time, it turns ON and when it becomes OFF time (hours / minutes), the operation to turn off is repeated with one setting. At this time, if the corresponding day of the week is already set to OFF at the time of ON, even if the current time is ON time, the state is maintained without turning ON.

While the stove is turned on, the system checks for overheating by the temperature sensor (l) and turns off the system if it is overheated. .

On the contrary, if the stove is turned off with the button in the off state (automatically, if the current time is still before the ON time), it is possible to turn it on even before the set ON time. Therefore, it is a stove that can operate auto / manual freely.

Claims (9)

A combustion object composed of a material in which ash remains by combustion;
A crater provided to a combustion space of the combustion object;
An ignition unit for supplying combustion heat to the combustion object supplied to the crater;
Ash cleaning unit for discharging the ash remaining in the crater to the outside by the combustion of the combustion object; And
The reservation operation time of the ignition unit is input from the outside, and the reservation operation time is compared with the current time to operate the ash cleaning unit before the set time before the reservation operation time to remove the ash from the crater, the reservation operation A system control unit which operates the ignition unit at a time;
The ash cleaning unit includes: a ash discharge communication provided to a passage through which ash remaining in the crater is discharged by combustion of the combustion object; and a ash discharge blower for blowing the ash into the ash discharge communication;
Gas or smoke exhaust communication provided by the gas or smoke generated by the combustion of the pellets to the outside discharge path from the crater; and the gas, smoke exhaust communication is provided separately from the re-discharge communication,
The ash discharge communication, the internal communication provided to the passage through which the ash is discharged; and the external communication disposed in the structure surrounding the outer surface of the internal communication; the air flows in from the outside through the interval formed between the internal communication and Pellet combustion device having a pre-ignition function, characterized in that having; delete delete The method according to claim 1,
Further comprising; a temperature sensor for sensing the temperature of the crater,
The system control unit, the pellet combustion device having a pre-ignition function, characterized in that for operating the re-cleaning unit in a state in which the temperature sensed by the temperature sensor is lower than the set reference temperature. delete The method according to claim 1,
The air flowing through the gap between the internal communication and the external communication is pellet combustion device having a pre-ignition function, characterized in that guided to be introduced into the re-discharge blower. The method according to claim 1,
Combustion object storage container for storing the combustion object; And
Further comprising: a combustion object supply unit for supplying the combustion object to the crater,
The combustion object is a pellet combustion device having a pre-ignition function, characterized in that prepared by any one of pellets, sawdust, wood. The method according to claim 1,
The system control unit,
Pellet combustion device having a reservation ignition function, characterized in that for controlling the operation of the ash cleaning unit can be made independently by a command input from the outside. The method according to claim 1,
A manual function in which the reservation operation time is input by a user;
The reservation operation time is input by the user and has an automatic function set by the system controller based on the combustion conditions stored in the inactive memory,
The combustion condition is a pellet combustion device having a pre-ignition function, characterized in that the operating cycle or operating temperature.

Images