• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a combustion method in a gas boiler burner, and more particularly, when a flame lift phenomenon caused by pure wind occurs during combustion in a burner, this method eliminates an infrared sensor that is stably burned in the burner. The present invention relates to a combustion control method when generating pure wind. In the combustion control method using the infrared sensor of the present invention in the generation of pure wind, the main controller 27 detects the combustion state in the burner 5 and outputs a salt voltage corresponding to the flame state in the main controller 27. Sensing a first step; A second step of judging from the main control word 27 as one of the extinguishing voltage V1, the combustion voltage V2, or the combustion control voltage V3 based on the salt voltage sensed in the first step; A third step of performing a fire extinguishing stroke when the salt voltage determined in the second step is a extinguishing voltage (V1), performing a combustion stroke when the combustion voltage (V2), and increasing a predetermined amount of gas pressure when the combustion control voltage (V3); And after detecting the salt voltage input from the infrared sensor 9 for a predetermined time after increasing the gas pressure in the third step, when the salt voltage reaches the combustion voltage V2, normal combustion is performed and the combustion voltage V2 is reached. Otherwise it comprises a fourth step of raising the gas pressure again.
    公开号:KR19980054853A
    申请号:KR1019960074038
    申请日:1996-12-27
    公开日:1998-09-25
    发明作者:장완식
    申请人:배순훈；대우전자 주식회사；
    IPC主号:
    专利说明:

    Combustion Control Method of Pure Wind Using Infrared Sensor
    The present invention relates to a combustion method in a gas boiler burner, and more particularly, when a flame lift phenomenon caused by pure wind occurs during combustion in a burner, this method eliminates an infrared sensor that is stably burned in the burner. The present invention relates to a combustion control method when generating pure wind.
    Gas boilers, which use clean fuel gas for indoor heating and hot water supply, are increasingly being used due to the convenience of use and the advantages of significantly reducing the emission of pollutants. First, a gas boiler will be described with reference to FIGS. 1 and 2.
    1 is a schematic configuration diagram of a conventionally used gas boiler, with reference to this it will be described the operating state of the boiler. The boiler supplies a predetermined amount of gas to the burner 5 through the gas valve 1 and then generates sparks in the spark plug 7 to ignite the gas. When the ignition is completed, the burner 5 generates a flame due to combustion, and the infrared sensor 9 detects the combustion state according to the flame and notifies the main control part (27 of FIG. 2) that the ignition is completed in the burner 5. .
    The gas is combusted by the ignition and the hot gas generated by the combustion rises to the upper side. The heat exchanger 11 for heating heating water is provided in the upper side of the burner 5. The heat exchanger 11 is configured such that the heating water circulates therein, and the direct water supply pipe 19 passes through the heat exchanger 11. Therefore, the heating water or the direct water is heated by the combustion in the burner 5. In the boiler, it is controlled to supply heating water in heating mode and hot water in hot water mode.
    That is, when the boiler is operated in the heating mode, the heating water heated by the heat exchanger 11 is discharged to the heating pipe installed in the room through the heating supply pipe (P1) and then returned through the heating return pipe (P2). Since the heating water moving to the heating return pipe P2 loses heat while passing through the room, the heating water returns to the water tank 25 at a lower temperature than when it is discharged from the heat exchanger 11. The heating water returned to the water tank 25 passes through the three-way 23-circulation pump 21 and flows back into the heat exchanger 11. The introduced heating water is again heated in the heat exchanger 11 and then discharged through the heating supply pipe P1. The three-way (23) is to control the flow path in the heating mode is controlled to move the heating water from the water tank 25 to the heat exchanger 11, in the hot water mode in the heat exchanger (11) three-way (23)- The circulation pump 21 is controlled to circulate the closed circuit of the heat exchanger 11. Therefore, the direct water introduced into the heat exchanger 11 through the direct water supply pipe 19 is discharged after being heated to high temperature hot water by heat exchange with heating water.
    On the other hand, the exhaust gas which has lost heat while passing through the heat exchanger 11 after being burned in the burner 5 is forcibly discharged by the exhaust fan 15 while passing through the exhaust hood 13 after the temperature is significantly lowered. . Typically, the exhaust hood 13 is installed at the end of the exhaust hood 13 to the outside to discharge the exhaust gas to the outside.
    In the boiler operating as described above, pure air is generated by external influences during combustion in the burner 5, and combustion defects are generated in the burner. That is, when the outside air pressure is high and the inside air pressure is low, if the indoor air is rapidly discharged to the outside by the pressure difference between the inside and the outside, the burner 5 of the boiler is supplied through the gas valve 1 to be suitable for normal combustion. According to the amount of gas to be generated, the air flows through the lower portion of the burner 5, the forward wind phenomenon occurs, the lifting phenomenon occurs that the spark is blown, the burner 5 ignited, the problem of repeating the fire extinguishing occurs.
    The present invention has been made in order to solve the above problems, the object of the present invention is the pure wind using an infrared sensor that can maintain a normal combustion state by increasing the gas pressure when the normal wind is not possible to control the normal combustion in the burner It is to provide a combustion control method at the time of occurrence.
    Combustion control method when generating a pure wind using the infrared sensor of the present invention for achieving the above object, the main control unit for detecting the signal of the infrared sensor for outputting a predetermined voltage corresponding to the flame state by detecting the combustion state in the burner Stage 1; A second step of determining, by the main controller, one of the extinguishing voltage V1, the combustion voltage V2, or the combustion control voltage V3 based on the predetermined voltage detected in the first step; A third step of performing a fire extinguishing stroke if the voltage determined in the second step is a extinguishing voltage (V1), performing a combustion stroke if the combustion voltage (V2), and increasing a predetermined amount of gas pressure if the combustion control voltage (V3); And after detecting the salt voltage input from the infrared sensor for a predetermined time after increasing the gas pressure in the third step, normal combustion is performed when the salt voltage reaches the combustion voltage V2, and gas pressure is not reached when the flame voltage reaches the combustion voltage V2. The fourth step of raising the back.
    1 is a schematic configuration diagram of a gas boiler conventionally used;
    2 is a partial block circuit diagram of the gas boiler of FIG.
    3 is a flowchart for explaining a combustion control method for generating pure air using the infrared sensor of the present invention.
    Explanation of symbols for the main parts of the drawings
    1: gas valve, 3: control panel,
    5: burner, 7: spark plug,
    9: infrared sensor, 11: heat exchanger,
    13: exhaust hood, 15: exhaust fan,
    15a: exhaust fan driver, 17 flow valve,
    19: direct supply pipe, 21: circulation pump,
    23: three-way, 25: water tank,
    27: main fisherman, P1: heating pipe,
    P2: heating return pipe.
    Hereinafter, a combustion control method for generating pure wind using the infrared sensor of the present invention will be described in detail with reference to the accompanying drawings.
    The method of the present invention is a method for preventing pure air from being generated during the combustion stroke in a burner of a boiler and preventing the boiler from being controlled. An infrared sensor is used to detect a salt voltage generated according to a combustion state, and When the voltage is in the range where the lifting phenomenon occurs, the gas supply amount is increased by a certain amount, that is, by increasing the gas pressure to maintain the salt voltage in a steady state to prevent ignition and extinguishing. In particular, by setting the gas pressure not to exceed a certain amount, safety from explosion ignition is maintained.
    The method of the present invention includes the following steps: a first step of detecting a signal of the infrared sensor 9 which detects a combustion state in the burner 5 and outputs a salt voltage corresponding to a flame state in the main controller 27 ; A second step of judging from the main control word 27 as one of the extinguishing voltage V1, the combustion voltage V2, or the combustion control voltage V3 based on the salt voltage sensed in the first step; A third step of performing a fire extinguishing stroke if the voltage determined in the second step is a extinguishing voltage (V1), performing a combustion stroke if the combustion voltage (V2), and increasing a predetermined amount of gas pressure if the combustion control voltage (V3); And after detecting the salt voltage input from the infrared sensor 9 for a predetermined time after increasing the gas pressure in the third step, when the salt voltage reaches the combustion voltage V2, normal combustion is performed to the combustion voltage V2. If not reached, a fourth step of increasing the gas pressure again, and if the increase in the gas pressure in the third step is a predetermined amount, that is, the total gas pressure increase exceeds 30mmH 2 O to maintain the safety by performing a fire extinguishing.
    The method of the present invention as described above will be described in detail using the flowchart of FIG. When the boiler is operated by the user, the main controller 27 of the boiler detects a salt voltage input from the infrared sensor 9.
    In the normal combustion state without external influence, the standard salt voltage (experimental value) is 4.55V or less, and if it is 4.8V or more, the burning phenomenon in the burner is severe and incomplete combustion occurs. The reference salt voltage is a value that can be changed at the time of heating or design of the boiler in one embodiment. The reference salt voltage value is data previously stored in the main controller 27.
    The main controller 27 determines the combustion state by comparing the salt voltage value detected by the infrared sensor 9 with the salt voltage value stored in the main controller 27 in advance. That is, the main controller 27 classifies the salt voltage value measured according to the reference salt voltage value into the extinguishing voltage V1, the combustion voltage V2, or the combustion control voltage V3.
    The extinguishing voltage (V3) is a non-combustion state is a value that requires an extinguishing stroke, the combustion voltage (V2) is a value that can be normally burned, and the combustion control voltage (V3) can be adjusted to a normal combustion state as a control object of the present invention. Represents a value.
    In the present invention, the extinguishing voltage V1, which is the reference salt voltage, is 4.8 V or more, and the combustion voltage V2 is 4.55 V or less, which is the salt voltage value of the minimum stable combustion condition, and the combustion control voltage V3 is 4.65 V. Up to 4.8V. Of course, the salt voltage setting range can be changed. 4.65V is an experimental value at which spark lifting occurs in the burner.
    The main controller 27 classifying the salt voltage value inputted from the infrared sensor 9 as described above performs a predetermined stroke according to the corresponding state. For example, if the salt voltage value is 4.7 V, this is the voltage at which spark lift is generated, and the main controller 27 controls the gas valve 1 to increase the gas pressure. At this time, the increased gas pressure is set to about 5 mmH 2 O and is increased once.
    After this increase, the main controller 27 detects whether there is a change in the salt voltage by re-measuring the salt voltage value input from the infrared sensor 9. If there is no change in the salt voltage value, the main controller 27 again increases the secondary gas pressure. Therefore, compared with the initial value, a total gas pressure of 10 mmH 2 O is increased.
    This increase in gas pressure is carried out until the salt voltage reaches 4.55 V, that is, the salt voltage value of the minimum stable combustion condition. However, increasing the gas pressure indefinitely may cause an explosion, so increase the gas pressure only until the total amount of gas pressure exceeds the gas pressure increase limit of 30 mmH 2 O. If the measured salt voltage is less than 4.65V, normal combustion stroke is performed.
    If the salt voltage value does not drop below 4.55V even if the gas pressure increase limit is exceeded, this is a state in which pure wind is generated for a long time, and thus a condition for removing the cause is required. The main control unit 27 may perform a digestive administration to remove the cause for safety.
    When the salt voltage reaches the combustion voltage V2 while increasing the gas pressure as described above, the main controller 27 maintains the gas pressure value and continues combustion. The flame voltage is also measured continuously to detect the flame condition in the burner.
    As described above, according to the present invention, when the pure wind is generated and normal combustion control in the burner is impossible, the gas pressure is increased to a certain amount to prevent incomplete combustion, ignition, and small strokes from being repeated.
    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 modifications and variations can be made within the spirit and scope of the invention, and such variations or modifications will belong to the appended claims. .
    权利要求:
    Claims (4)
    [1" claim-type="Currently amended] In the gas boiler measuring the salt voltage by using the infrared sensor 9, the main controller is configured to detect a combustion state of the burner 5 and output a predetermined voltage corresponding to the flame state. Detecting in step 27);
    A second step of determining the predetermined salt voltage detected in the first step by one of the extinguishing voltage (V1), the combustion voltage (V2), or the combustion control voltage (V3) by the main keyword (27);
    A third step of performing a fire extinguishing stroke if the voltage determined in the second step is a extinguishing voltage (V1), performing a combustion stroke if the combustion voltage (V2), and increasing a predetermined amount of gas pressure if the combustion control voltage (V3); And
    After increasing the gas pressure in the third step, the salt voltage input from the infrared sensor 9 is detected for a predetermined time, and when the salt voltage reaches the combustion voltage V2, normal combustion is performed and the combustion voltage V2 is not reached. And a fourth step of increasing the gas pressure again.
    [2" claim-type="Currently amended] The infrared sensor according to claim 1, wherein the extinguishing voltage V1 in the second step is 4.8 V, the combustion voltage V2 is 4.55 V, and the combustion control voltage V3 is 4,65 to 4.8 V. Combustion control method during pure wind generation using
    [3" claim-type="Currently amended] The combustion control method according to claim 1, wherein the gas pressure increase amount in the third step is 5 mmH 2 0.
    [4" claim-type="Currently amended] 4. The combustion control method according to claim 3, wherein when the gas pressure increase exceeds 30 mmH 2 O, a fire extinguishing stroke is performed for safety from explosion.
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    同族专利:
    公开号 | 公开日
    KR100214225B1|1999-08-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-27|Application filed by 배순훈, 대우전자 주식회사
    1996-12-27|Priority to KR1019960074038A
    1998-09-25|Publication of KR19980054853A
    1999-08-02|Application granted
    1999-08-02|Publication of KR100214225B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019960074038A|KR100214225B1|1996-12-27|1996-12-27|Controling method of spread of fire using infrared rays sensor|
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