JP2020204437A - Combustion system, terminal device, and program - Google Patents

Abstract

To provide a method of detecting a component of combustion exhaust gas from a combustion facility while protecting a detection part for detecting the component of the combustion exhaust gas.SOLUTION: A combustion system 1 includes a combustion facility 10 in which combustion for heating a heat product is carried out, a detection part 24 which detects a component of combustion exhaust gas from the combustion facility, and a control part which carries out control of intermittently introducing the combustion exhaust gas into the detection part. The control part commands, on the basis of a temperature of the temperature measurement part 23 and process information of production management information, the suction part 52 to suction the combustion exhaust gas into an introduction passage 51. A damage of an oxygen concentration measurement part 24 caused by the heat of the combustion exhaust gas, and an attachment of dust to the oxygen concentration measurement part 24 are prevented.SELECTED DRAWING: Figure 6

Description

The present invention relates to combustion systems, terminals and programs.

For example, in Patent Document 1, two or more flue tubes through which burnt exhaust gas passes, and two or more light transmission tubes that are installed at predetermined intervals in a direction orthogonal to the gas flow direction of combustion exhaust gas and pass laser light, and a light transmission tube. A part of the light is divided into a predetermined distance, and the laser light from the laser emitting part is sequentially reflected in the measurement area exposed to the measurement field of the flue and the outside of the flue, and the laser light is emitted into the two or more transmission tubes. A light transmitting unit having two or more light transmitting reflecting units and two or more light transmitting cylinders that have passed through the measurement region outside the flue are sequentially reflected and introduced into the laser receiving unit. A light receiving unit provided with two or more light receiving and reflecting parts, and when measuring the gas component concentration of combustion exhaust gas, the timing of reflection between the light receiving and reflecting part of the light transmitting unit and the light receiving and reflecting part of the light receiving unit. Disclosed is a gas component concentration distribution measuring device characterized in that laser light is sequentially introduced into a plurality of light transmitting cylinders and light is received by receiving the laser light in synchronization with each other.

Japanese Unexamined Patent Publication No. 2015-127687

If the components of the combustion exhaust gas in the combustion equipment can be detected, it becomes possible to provide the user with combustion information regarding the combustion of the combustion equipment based on the measurement results of the components of the combustion exhaust gas. However, for example, if the combustion exhaust gas has a high temperature or the combustion exhaust gas contains a large amount of water or dust, the detection unit that detects the components of the combustion exhaust gas may be damaged. Therefore, it has been difficult to always install a detector for measuring the components of the combustion exhaust gas in the combustion equipment.
An object of the present invention is to detect the components of the combustion exhaust gas of the combustion equipment while protecting the detection unit that detects the components of the combustion exhaust gas.

For this purpose, the present invention has a combustion facility in which combustion is performed to heat an object to be heated, a detection unit that detects a component of the combustion exhaust gas of the combustion facility, and a combustion exhaust gas intermittently in the detection unit. It is a combustion system characterized by including a control unit that controls to guide the vehicle.
Here, the control unit is characterized in that the combustion exhaust gas is intermittently guided to the detection unit based on the information related to the combustion conditions of the combustion equipment.
The control unit is characterized in that the combustion exhaust gas is intermittently guided to the detection unit by using the time information regarding the combustion time in the combustion equipment.
Further, the control unit is characterized in that the combustion exhaust gas is intermittently guided to the detection unit by using the temperature information regarding the temperature of the combustion exhaust gas.
Furthermore, the control unit is characterized in that the combustion exhaust gas is intermittently guided to the detection unit by using the processing information regarding the processing of the object to be heated in the combustion equipment.
Here, the control unit is characterized in that when it does not guide the combustion exhaust gas to the detection unit, it guides air to at least the detection unit.
Further, a suction unit for sucking a part of the combustion exhaust gas from the combustion equipment and introducing the combustion exhaust gas into the introduction path is provided, the detection unit is provided in the introduction path, and the control unit controls the suction unit. By doing so, the combustion exhaust gas is guided from the combustion equipment to the detection unit via the introduction path.
Then, when the suction unit supplies air as a drive fluid from the supply unit to the ejector to introduce the combustion exhaust gas from the combustion equipment into the introduction path, and the control unit guides the combustion exhaust gas to the detection unit. The present invention is characterized in that air is supplied from the supply unit to the ejector, and when the combustion exhaust gas is not guided to the detection unit, air is supplied from the supply unit to the introduction path.
Further, for this purpose, the present invention has a control unit that intermittently guides the combustion exhaust gas to a detection unit that detects a component of the combustion exhaust gas of the combustion equipment in which combustion is performed, and a combustion detected by the detection unit. It is a terminal device including an acquisition unit that acquires component information of exhaust gas from the detection unit.
Further, for this purpose, the present invention has a function of controlling the computer to intermittently guide the combustion exhaust gas by a detection unit that detects a component of the combustion exhaust gas of the combustion equipment in which combustion is performed, and the detection unit. It is a program that realizes the function of acquiring the component information of the detected combustion exhaust gas from the detection unit.

According to the present invention, it is possible to detect the components of the combustion exhaust gas of the combustion equipment while protecting the detection unit that detects the components of the combustion exhaust gas.

It is a schematic diagram of the combustion system of Embodiment 1. It is a detailed explanatory view of the measuring apparatus of Embodiment 1. FIG. It is a functional block diagram of the terminal device of Embodiment 1. It is an overall view of the combustion system of Embodiment 2. It is an overall view of the drain pot of Embodiment 2. It is an overall view of the combustion system of Embodiment 3. FIG. 5 is an operation flow chart executed by the measurement control unit of the combustion system of the third embodiment. It is explanatory drawing of the operation of the combustion system of Embodiment 3. It is an overall view of the combustion system of Embodiment 4. It is an overall view of the drain pot part of Embodiment 4. It is explanatory drawing of the water level adjustment part of Embodiment 4. It is explanatory drawing of the operation of the combustion system of Embodiment 4. (A) is an explanatory diagram of the water level adjusting unit of the modified example 1, and (B) is an explanatory diagram of the water level adjusting unit of the modified example 2. (A) is an explanatory diagram of the water level adjusting unit of the modified example 3, and (B) is an explanatory diagram of the water level adjusting unit of the modified example 4.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings.
<Embodiment 1>
FIG. 1 is a schematic view of the combustion system 1 of the first embodiment.

The combustion system 1 of the first embodiment includes a combustion facility 10 that burns fuel such as city gas to heat an object to be heated, a measuring device 20 that measures components of combustion exhaust gas generated in the combustion facility 10, and the like. A terminal device 30 that controls the combustion equipment 10 and the measuring device 20 is provided.

In this embodiment, the description will be given based on an example in which city gas as a fuel (for example, natural gas containing methane as a main component) and air as an oxidizing agent are used. However, the combination of fuel and oxidant is not limited to the embodiment of the present embodiment. For example, the combustion facility 10 may use LPG (for example, liquefied petroleum gas containing propane or butane as a main component) or oil as the fuel, or oxygen or the like as the oxidizing agent.

[Combustion equipment 10]
The combustion facility 10 includes a furnace chamber 11 in which an object to be heated is installed, and a main burner 12 that generates a flame in the furnace chamber 11. Further, the combustion facility 10 includes a fuel supply unit 13 that supplies fuel to the main burner 12, an air supply unit 14 that supplies air to the main burner 12, and a flue that forms a path for discharging combustion exhaust gas. It has 15.
The combustion facility 10 of the first embodiment is an example in which the temperature of the combustion exhaust gas in the furnace chamber 11 or the flue 15 is relatively high (for example, 900 ° C. or higher), such as in a forging path, a rolling path, or an aluminum melting furnace. Is.

Here, in the present embodiment, combustion exhaust gas is generated by burning fuel in the furnace chamber 11, and the generated combustion exhaust gas is discharged to the outside of the furnace chamber 11 through the flue 15. Further, the combustion exhaust gas of the flue 15 is discharged to the atmosphere from, for example, a chimney (not shown) extending to the outside of the building where the combustion equipment 10 is installed.
In the following description, when the direction of the flow of the combustion exhaust gas is explained, the furnace chamber 11 side where the combustion exhaust gas is generated is referred to as an upstream side, and the chimney side is referred to as a downstream side.

In the furnace chamber 11, the object to be heated is installed, and a chamber for heating the object to be heated is formed.
The main burner 12 generates a flame by burning fuel and an oxidizer, and raises the temperature inside the furnace chamber 11.
The fuel supply unit 13 supplies fuel to the main burner 12. The flow rate of the fuel supplied by the fuel supply unit 13 is adjusted by a fuel adjustment unit (not shown). The fuel adjusting unit can be controlled by, for example, the terminal device 30.

The air supply unit 14 supplies air, which is an oxidant, to the main burner 12. The flow rate of the air supplied by the air supply unit 14 is adjusted by an air adjustment unit (not shown). The air adjusting unit can be controlled by, for example, the terminal device 30. Further, in the first embodiment, the air supply unit 14 is provided with, for example, a blower (that is, a fan) that supplies air at a predetermined pressure ratio, or a compressor (for example, a compressor) that supplies air at a pressure ratio higher than that of the blower. A pump or blower) can be used.

Further, the air supply unit 14 of the present embodiment supplies air not only to the main burner 12 but also to the suction unit 22 described later of the measuring device 20. That is, the air supply unit 14 of the present embodiment has both a function of supplying air to the combustion equipment 10 and a function of supplying air to the measuring device 20. The supply of air to the measuring device 20 will be described in detail later.

The flue 15 is provided on the ceiling portion 11R in the furnace chamber 11. Then, the flue 15 of the first embodiment forms a path through which the combustion exhaust gas in the furnace chamber 11 is discharged to the outside of the furnace chamber 11. In the present embodiment, a heat exchanger for combustion exhaust gas (not shown) is provided on the downstream side of the flue 15. Therefore, in the combustion equipment 10 of the first embodiment, the heat of the combustion exhaust gas generated in the furnace chamber 11 is recovered by the heat exchanger. Then, the combustion exhaust gas is released to the atmosphere, for example, in a state where the temperature is lowered by the heat exchanger.

The flue 15 of the first embodiment includes a first flue portion 15V extending in a substantially vertical direction and a second flue portion 15H connected to the first flue portion 15V and extending in a substantially horizontal direction.
The upstream side of the first flue portion 15V is connected to the inside of the furnace by the ceiling portion 11R of the furnace chamber 11, and the downstream side is connected to the second flue portion 15H. In the first flue portion 15V, a flow of combustion exhaust gas is formed from the lower side in the vertical direction to the upper side in the vertical direction by the action of the updraft.
The upstream side of the second flue section 15H is connected to the first flue section 15V, and the downstream side is connected to a heat exchanger and a chimney (not shown). Then, in the second flue portion 15H, a flow of combustion exhaust gas is formed from the first flue portion 15V toward the heat exchanger and the chimney (not shown) along a substantially horizontal direction.

[Measuring device 20]
As shown in FIG. 1, the measuring device 20 measures the temperature of the introduction path 21 in which a part of the combustion exhaust gas is guided from the flue 15, the suction unit 22 that sucks the combustion exhaust gas into the introduction path 21, and the combustion exhaust gas. It includes a temperature measuring unit 23 and an oxygen concentration measuring unit 24 (an example of a detecting unit) for measuring the oxygen component of the combustion exhaust gas.

Subsequently, the structure of the measuring device 20 will be described in detail.
FIG. 2 is a detailed explanatory view of the measuring device 20 of the first embodiment.

(Introduction road 21)
As shown in FIG. 2, the introduction path 21 includes a connection flow path portion 211 connected to the flue 15, a cooling flow path portion 212 (an example of a temperature lowering portion) for lowering the temperature of the combustion exhaust gas, and an oxygen concentration measurement unit 24. Has a measurement flow path portion 213 provided with.

The connection flow path portion 211 is connected to the first flue portion 15V on the upstream side and is connected to the cooling flow path portion 212 on the downstream side. The height of the connecting flow path portion 211 in the vertical direction is lower on the upstream side than on the downstream side. That is, the connection flow path portion 211 is provided so as to be inclined so that the height on the first flue portion 15V side is lower.
The connection flow path portion 211 of the first embodiment is inclined so that the height of the first flue portion 15V side becomes low, so that when moisture or the like is generated in the introduction path 21, the generated moisture has an oxygen concentration. It is designed to flow toward the first flue section 15V without flowing into the measuring section 24.

The cooling flow path portion 212 is connected to the connection flow path portion 211 on the upstream side and is connected to the measurement flow path portion 213 on the downstream side. Further, the cooling flow path portion 212 is provided so as to extend along the vertical direction. Further, the cooling flow path portion 212 is configured by using a material having a higher thermal conductivity than the flue 15. When the material of the flue 15 is, for example, stainless steel, copper can be used as the material of the cooling flow path portion 212 of the first embodiment. Then, in the first embodiment, when the combustion exhaust gas flows through the cooling flow path portion 212, the combustion exhaust gas flowing in the cooling flow path portion 212 is cooled by exchanging heat with the ambient air (atmosphere), and the temperature of the combustion exhaust gas is raised. I'm trying to lower it.

The measurement flow path portion 213 is connected to the cooling flow path portion 212 on the upstream side and is connected to the suction passage portion 22 on the downstream side. In the present embodiment, the measurement flow path portion 213 is formed so as to extend along the horizontal direction. Then, the oxygen concentration measuring unit 24 is attached to the measuring flow path unit 213.

Further, the measurement flow path portion 213 of the first embodiment is configured by using a material having a lower thermal conductivity than the cooling flow path portion 212. As a result, the measurement flow path portion 213 prevents dew condensation from occurring due to the temperature of the combustion exhaust gas being lowered more than necessary.
The measurement flow path portion 213 may be configured so that the temperature of the combustion exhaust gas flowing through the measurement flow path portion 213 is maintained at a certain temperature or higher by installing a heating portion such as a heater.
Further, the material of the measurement flow path portion 213 is not limited to having a lower thermal conductivity than the cooling flow path portion 212, and may be the same material or have a higher thermal conductivity than the cooling flow path portion 212. Is also good.

(Suction unit 22)
The suction unit 22 includes an ejector 221 that sucks the combustion exhaust gas, a drive gas supply path 222 that draws the drive gas into the ejector 221, an discharge path 223 that discharges the sucked combustion exhaust gas, and a flow of the drive gas in the drive gas supply path 222. It has an electromagnetic valve 224 and a control valve 224.

The ejector 221 uses a gas as a driving gas and sucks combustion exhaust gas as a suction gas. The ejector 221 of the present embodiment sucks the combustion exhaust gas from the introduction path 21 by supplying air as the drive gas from the drive gas supply path 222, and discharges the gas obtained by mixing the air and the combustion exhaust gas from the discharge path 223. To do.

One of the drive gas supply paths 222 is connected to the air supply unit 14 (see FIG. 1), and the other is connected to the ejector 221. Then, the drive gas supply path 222 supplies the air flow generated by the air supply unit 14 to the ejector 221. That is, the air supply unit 14 of the present embodiment supplies the air for combustion in the combustion equipment 10 to the combustion equipment 10, and also supplies the air as the driving fluid to the ejector 221.

One of the discharge passages 223 is connected to the ejector 221 and the other is connected to the second flue portion 15H. Then, the discharge path 223 forms a path through which the gas in which the air discharged from the ejector 221 and the combustion exhaust gas are mixed is discharged.

The solenoid valve 224 is provided in the drive gas supply path 222 and opens and closes the drive gas supply path 222. Then, the solenoid valve 224 of the present embodiment controls the flow of the driving gas from the air supply unit 14 (see FIG. 1) toward the ejector 221. Specifically, the solenoid valve 224 limits the supply of drive gas from the air supply unit 14 to the ejector 221 when the drive gas supply path 222 is closed. Further, the solenoid valve 224 allows the supply of the drive gas from the air supply unit 14 to the ejector 221 when the drive gas supply path 222 is closed.

(Temperature measuring unit 23)
The temperature measuring unit 23 can use, for example, a thermocouple or the like. The temperature measuring unit 23 of the first embodiment is provided in the connecting flow path unit 211. Specifically, the temperature measuring unit 23 is installed in the connecting flow path portion 211 along the axis of the connecting flow path portion 211. Then, in the temperature measuring unit 23, a cable for communicating with the terminal device 30 is pulled out on the downstream side of the connecting flow path unit 211, and toward the first flue unit 15V on the upstream side of the connecting flow path unit 211. It is protruding. Then, the temperature measuring unit 23 measures the temperature of the combustion exhaust gas flowing through the flue 15 and sends the measured temperature information to the terminal device 30. The temperature measuring unit 23 of the present embodiment is arranged at the central portion or the like in the cross section of the flow path of the first flue portion 15V, and measures the temperature (mean value or representative value) of the flowing combustion exhaust gas.

(Oxygen concentration measuring unit 24)
For the oxygen concentration measuring unit 24, for example, a zirconia type oxygen sensor or the like can be used. Then, the oxygen concentration measuring unit 24 measures the oxygen concentration of the combustion exhaust gas flowing through the flue 15, and sends the measured oxygen concentration information to the terminal device 30.
In the first embodiment, the oxygen concentration measuring unit 24 is provided on the upstream side of the flow of the combustion exhaust gas with respect to the heat exchanger (not shown).

The oxygen concentration measuring unit 24 is provided at a position higher than the cooling flow path unit 212 in the vertical direction. As a result, in the first embodiment, the oxygen concentration measuring unit 24 is affected by the moisture generated by the dew condensation (condensation) of the water vapor in the combustion exhaust gas as the temperature of the combustion exhaust gas is lowered in the cooling flow path portion 212. It's difficult.

Further, the oxygen concentration measuring unit 24 of the first embodiment is provided on the upper side of the measuring flow path unit 213 in the vertical direction. Further, the oxygen concentration measuring unit 24 is installed so that the sensor surface for detecting the oxygen concentration faces the lower side in the vertical direction in the measuring flow path unit 213. As a result, in the measuring device 20 of the first embodiment, even when water or dust is generated in the measurement flow path portion 213, the moisture or dust is present on the measuring portion of the oxygen concentration measuring portion 24. It makes it difficult to adhere or accumulate.

The measuring device 20 of the first embodiment will be described with an example of detecting the oxygen concentration as a component of the combustion exhaust gas, but the measurement target of the component of the combustion exhaust gas is not limited to the oxygen concentration. For example, the measuring device 20 may detect carbon monoxide concentration, VOC (volatile organic compound), or the like as a component of the combustion exhaust gas. This also applies to other embodiments.

[Terminal device 30]
As shown in FIG. 1, as the terminal device 30, a fixed terminal device such as a personal computer or a portable information terminal such as a tablet terminal or a smartphone can be used. Then, the terminal device 30 receives the measurement result measured by the combustion equipment 10 from the combustion equipment 10. Further, the terminal device 30 can transmit information about the combustion equipment 10 to a server device (not shown).
Further, as described above, the terminal device 30 of the present embodiment can also control the combustion of the combustion equipment 10.

Here, a server device (not shown) will be described. In the server device of the present embodiment, the combustion information regarding the combustion of the combustion equipment 10 is created based on the measurement information of the combustion equipment 10 acquired through the terminal device 30. The combustion information includes, for example, time-series information on the combustion state of the combustion equipment 10, advice information on the operation of the combustion equipment 10, and the like. Here, as the time series information, it can be exemplified that the measurement information (for example, oxygen concentration information, temperature information, etc.) measured by the measuring device 20 is displayed side by side at a predetermined time interval. In addition, the advice information can exemplify a proposal to the user regarding the combustion conditions (for example, adjustment of the combustion air ratio) of the combustion equipment 10 obtained by analyzing the measurement information measured by the measuring device 20.

FIG. 3 is a functional block diagram of the terminal device 30 of the first embodiment.
As shown in FIG. 3, the terminal device 30 includes a measurement control unit 31 (an example of a control unit) that controls each measurement unit in the measurement device 20, and an acquisition unit 32 that acquires information on measurement results from the measurement device 20. It has a storage unit 33 that stores information about the measurement result. Further, the terminal device 30 includes a transmission unit 34 that transmits information about the measurement result to the server device, a reception unit 35 that receives information about the combustion equipment 10 specified based on the measurement result from the server device, and the terminal device 30. It has a presentation unit 36 that presents information to the user on the screen.

The measurement control unit 31 of the first embodiment controls the operations of the temperature measurement unit 23, the oxygen concentration measurement unit 24, and the solenoid valve 224 (see FIG. 2). The measurement control unit 31 receives a measurement instruction by the measurement device 20 from the user via the terminal device 30, and receives a measurement command from the server device (not shown). Then, the measurement control unit 31 controls the solenoid valve 224 so that suction is performed on the suction unit 22, so that the drive gas is supplied from the air supply unit 14 to the ejector 221. Further, the measurement control unit 31 causes the temperature measurement unit 23 and the oxygen concentration measurement unit 24 to measure the temperature and the oxygen concentration, respectively.

The acquisition unit 32 acquires measurement information regarding the temperature of the combustion exhaust gas from the temperature measurement unit 23. Further, the acquisition unit 32 acquires measurement information of the oxygen concentration of the combustion exhaust gas from the oxygen concentration measurement unit 24. Then, the acquisition unit 32 sends the acquired combustion exhaust gas temperature measurement information and oxygen concentration measurement information to the storage unit 33. Further, when the acquisition unit 32 sends the temperature measurement information and the oxygen concentration measurement information to the storage unit 33, the acquisition unit 32 adds time information, which is the date and time when each measurement information was measured, to each measurement information to the storage unit 33. Send to.

The storage unit 33 stores the measurement information sent from the acquisition unit 32 in association with the time information. Further, the storage unit 33 stores the combustion information of the combustion equipment 10 received from the server device by the receiving unit 35.

The transmission unit 34 transmits the measurement information stored in the storage unit 33 to the server device at a predetermined timing.

The receiving unit 35 receives various information from the server device. For example, the receiving unit 35 receives the combustion information of the combustion equipment 10 from the server device. Then, the receiving unit 35 sends the received combustion information to the storage unit 33. Further, for example, the receiving unit 35 receives a measurement command using the temperature measuring unit 23 and the oxygen concentration measuring unit 24 from the server device. Then, the receiving unit 35 sends the received command information to the measurement control unit 31.

Further, the receiving unit 35 acquires the production management information related to the production using the combustion equipment 10 from the management terminal (not shown) of the production management system. The production management information includes, for example, various information related to production such as delivery date, inventory, process, and cost of a manufactured product using the combustion equipment 10.

The presentation unit 36 displays the measurement information by the temperature measuring unit 23 and the oxygen concentration measuring unit 24 and the combustion information of the combustion equipment 10 created by the server device on the screen of the terminal device 30. Then, the presentation unit 36 presents the measurement information and the combustion information to the user.

Next, the operation of the combustion system 1 of the first embodiment will be described.
As shown in FIG. 2, in the combustion system 1 of the first embodiment, when combustion is performed in the combustion equipment 10, the combustion exhaust gas generated in the combustion equipment 10 is discharged through the flue 15. Then, in the combustion system 1 of the first embodiment, the measurement control unit 31 of the terminal device 30 controls the temperature measurement unit 23, the oxygen concentration measurement unit 24, and the electromagnetic valve 224 to measure the temperature and oxygen concentration of the combustion exhaust gas. Execute. In the combustion system 1 of the first embodiment, when the combustion equipment 10 is performing combustion, the temperature measuring unit 23 and the oxygen concentration measuring unit 24 always perform the measurement.

Specifically, in the first embodiment, the solenoid valve 224 is controlled by the measurement control unit 31, and the air as the driving gas is supplied to the ejector 221 of the measurement device 20 from the air supply unit 14 that supplies air to the main burner 12. Is supplied. As a result, a part of the combustion exhaust gas flowing through the flue 15 is guided to the introduction path 21.

First, the temperature of the combustion exhaust gas is measured by the temperature measuring unit 23 when flowing through the first flue unit 15V.
Further, when the combustion exhaust gas guided to the introduction path 41 passes through the cooling flow path portion 212, the temperature of the combustion exhaust gas is lowered. Then, when the combustion exhaust gas whose temperature has been lowered flows through the measurement flow path unit 213, the oxygen concentration is measured by the oxygen concentration measurement unit 24. In the first embodiment, the temperature of the combustion exhaust gas flowing through the measurement flow path portion 213 is lower than the temperature of the combustion exhaust gas in the furnace chamber 11, so that the oxygen concentration measurement portion 24 is suppressed from being exposed to the high temperature combustion exhaust gas. Will be done. As a result, in the first embodiment, for example, it is not essential to provide the oxygen concentration measuring unit 24 with a special structural part for measuring the oxygen concentration of the high-temperature combustion exhaust gas, or the oxygen concentration measuring unit 24 itself. Damage caused by high temperature heat can be suppressed.

After that, the combustion exhaust gas that has flowed into the measurement flow path portion 213 is mixed with air as a driving gas at the suction section 22, and flows to the downstream side of the connection flow path portion 211 in the second flue section 15H.

In the introduction path 21, for example, when the temperature of the combustion exhaust gas drops, dew condensation may occur in the introduction path 21. In this case, in the first embodiment, since the connection flow path portion 211 connected to the flue 15 is inclined, the water in the introduction path 21 flows toward the flue 15 and is discharged from the introduction path 21. It has become like.

<Embodiment 2>
Subsequently, the combustion system 1 to which the second embodiment is applied will be described.
FIG. 4 is an overall view of the combustion system 1 of the second embodiment.
In the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 4, the combustion system 1 of the second embodiment includes a combustion facility 10, a measuring device 40, and a terminal device 30 (see FIG. 1).
Then, in the combustion system 1 of the second embodiment, the basic configurations of the combustion equipment 10 and the terminal device 30 are the same as those of the first embodiment. However, in the combustion system 1 of the second embodiment, the configuration of the measuring device 40 is different from that of the measuring device 20 of the first embodiment. Further, the measuring device 40 of the second embodiment sucks the combustion exhaust gas for a longer distance than the measuring device 20 of the first embodiment to measure the oxygen concentration of the combustion exhaust gas.

[Measuring device 40]
The measuring device 40 includes an introduction path 41 in which a part of the combustion exhaust gas is guided from the combustion equipment 10, a suction unit 22 that sucks the combustion exhaust gas into the introduction path 41, and an oxygen concentration measuring unit 24 that measures the oxygen concentration of the combustion exhaust gas. , Equipped with.

(Introduction road 41)
The introduction path 41 has a connection flow path portion 411 connected to the inlet of the flue (not shown) connected to the furnace chamber 11 or the furnace chamber 11, a vertical flow path portion 412 extending in the vertical direction, and the temperature of the combustion exhaust gas. It has a cooling flow path portion 413 for lowering, a measurement flow path portion 414 provided with an oxygen concentration measuring unit 24, and a drain pot 415 for collecting drain water.
Here, in the combustion system 1 of the second embodiment, a part of the combustion exhaust gas is introduced into the furnace chamber 11 or the introduction path 41 connected to the inlet of the flue connected to the furnace chamber 11, and the components of the combustion exhaust gas are measured. ing. Then, in the combustion system 1 of the second embodiment, the exhaust gas from the combustion exhaust gas from the furnace chamber 11 is mainly discharged in a flue (not shown).

The connection flow path portion 411 is connected to the furnace chamber 11 or the inlet of the flue connected to the furnace chamber 11 on the upstream side, and is connected to the vertical flow path portion 412 on the downstream side. The height of the connecting flow path portion 411 in the vertical direction is lower on the upstream side than on the downstream side. That is, the connection flow path portion 411 is inclined so that the height on the furnace chamber 11 side is lower.
The connection flow path portion 411 of the second embodiment is inclined so that the height on the furnace chamber 11 side is low, so that when drain water is generated in the introduction path 41, the generated drain water is directed toward the furnace chamber 11. I try to make it flow.

The upper and lower flow paths 412 are connected to the connection flow path 411 and the drain pot 415 on the upstream side, respectively, and are connected to the cooling flow path 413 on the downstream side. The vertical flow path portion 412 of the present embodiment is provided so as to extend along a substantially vertical direction.

The cooling flow path portion 413 is connected to the vertical flow path portion 412 on the upstream side, and is connected to the measurement flow path portion 414 on the downstream side. Further, the cooling flow path portion 413 is formed so that the flow path of the combustion exhaust gas rises or falls along the vertical direction on the rotating surface while rotating. That is, the cooling flow path portion 413 of the second embodiment is formed in a spiral shape, and the cooling effect of the combustion exhaust gas can be enhanced by increasing the surface area of the cooling flow path portion 413 in contact with the ambient air.
As the material of the cooling flow path portion 413 of the second embodiment, for example, a stainless steel material of SUS316 can be used. In the second embodiment, by using the stainless steel material of SUS316 as the material of the cooling flow path portion 413, the cooling flow path portion 413 has heat resistance to high-temperature combustion exhaust gas and resistance to moisture such as drain water generated from the combustion exhaust gas. It is highly corrosive.

The measurement flow path portion 414 is connected to the cooling flow path portion 413 on the upstream side and is connected to the suction passage portion 22 on the downstream side. Further, the measurement flow path portion 414 of the present embodiment is formed so as to extend along the vertical direction. Then, the oxygen concentration measuring unit 24 is attached to the measuring flow path unit 414.

The measurement flow path portion 414 is provided with a heating section such as a heater in order to suppress dew condensation of the combustion exhaust gas, so that the temperature of the combustion exhaust gas flowing through the measurement flow path section 414 is maintained above a certain temperature. You may.

FIG. 5 is an overall view of the drain pot 415 of the second embodiment.
The drain pot 415 (an example of a collecting part) of the second embodiment has a water storage part 415S for accommodating water and a lid part 415F (an example of a suppressing part) for covering the water storage part 415S. Then, the drain pot 415 collects the drain water generated in the introduction path 41.

The water storage portion 415S has a bottomed cylindrical shape in which a portion where the lid portion 415F is provided is opened. Then, the water storage unit 415S accommodates a predetermined amount of water.
The lid portion 415F is provided so as to cover the opening provided on the upper side of the water storage portion 415S in the vertical direction. Then, the lid portion 415F suppresses the evaporation of water including the drain water in the water storage portion 415S. The drain pot 415 of the second embodiment is provided relatively close to the combustion equipment 10 among the plurality of components constituting the measuring device 40. Therefore, in the second embodiment, the lid portion 415F is provided so that the water in the water storage portion 415S does not evaporate too much.

Further, the lid portion 415F has a through hole C between the lid portion 415F and the water storage portion 415S. The height H of the through hole C in the drain pot 415 is set based on the height at which the water in the water storage unit 415S is not drained from the water storage unit 415S due to the furnace pressure in the furnace chamber 11. Specifically, if the head pressure h specified by the height of the water surface from the lower end 412E in the vertical direction of the vertical flow path portion 412 is equal to or higher than the furnace pressure in the furnace chamber 11, the combustion exhaust gas is the drain pot 415. It is suppressed that the combustion equipment 10 is discharged into the building where the combustion equipment 10 is installed. The height H of the through hole C is set based on the height at which the head pressure h is secured.

(Suction unit 22)
As shown in FIG. 4, the basic configuration of the suction unit 22 of the second embodiment is the same as that of the first embodiment. That is, the suction unit 22 of the second embodiment has an ejector 221, a drive gas supply path 222, a discharge path 223, and a solenoid valve 224. Here, the measurement flow path portion 414 is connected to the suction portion 22 of the second embodiment, and a part of the combustion exhaust gas is sucked from the combustion equipment 10 via the introduction path 41. Further, the suction unit 22 of the second embodiment uses the air supplied by the air supply unit 14 that sends air to the combustion equipment 10 as the driving gas. The supply of the driving gas to the suction unit 22 is controlled by the solenoid valve 224.

(Oxygen concentration measuring unit 24)
The oxygen concentration measuring unit 24 of the second embodiment is provided on a side portion of the measuring flow path portion 414. In particular, the oxygen concentration measuring unit 24 is installed so that the sensor surface for detecting the oxygen concentration is along the vertical direction. As a result, in the second embodiment, for example, even when water or dust is generated in the measurement flow path portion 414, the moisture or dust is less likely to adhere to or accumulates on the measurement site in the oxygen concentration measuring portion 24. It's difficult.

Further, the oxygen concentration measuring unit 24 of the second embodiment is provided at a position higher than the cooling flow path unit 413 in the vertical direction. As a result, in the second embodiment, the oxygen concentration measuring unit 24 is affected by the moisture generated by the dew condensation (condensation) of the water vapor in the combustion exhaust gas as the temperature of the combustion exhaust gas is lowered in the cooling flow path portion 413. It's difficult.

Next, the operation of the combustion system 1 of the second embodiment will be described.
As shown in FIG. 4, in the combustion system 1 of the second embodiment, when combustion is performed in the combustion equipment 10, combustion exhaust gas is generated in the combustion equipment 10. Then, in the combustion system 1 of the second embodiment, the measurement control unit 31 (see FIG. 3) of the terminal device 30 controls the oxygen concentration measurement unit 24 and the solenoid valve 224 to measure the oxygen concentration of the combustion exhaust gas. To. In the combustion system 1 of the second embodiment, when the combustion equipment 10 is performing combustion, the oxygen concentration measuring unit 24 always performs the measurement.

Specifically, in the second embodiment, the solenoid valve 224 is controlled by the measurement control unit 31, and the air as the driving gas is supplied from the air supply unit 14 that supplies air to the main burner 12 to the ejector 221 of the measurement device 20. Is supplied. As a result, a part of the combustion exhaust gas in the furnace chamber 11 or the inlet of the flue is guided to the introduction path 41.

The temperature of the combustion exhaust gas guided to the introduction path 41 is lowered when it passes through the cooling flow path portion 413. Then, when the combustion exhaust gas whose temperature has been lowered flows through the measurement flow path unit 414, the oxygen concentration is measured by the oxygen concentration measurement unit 24. In the second embodiment, the temperature of the combustion exhaust gas flowing through the measurement flow path portion 414 is lower than the temperature of the combustion exhaust gas in the furnace chamber 11, so that the oxygen concentration measuring portion 24 is suppressed from being exposed to the high temperature combustion exhaust gas. Will be done. As a result, in the second embodiment, for example, it is not essential to provide the oxygen concentration measuring unit 24 with a special structural part for measuring the oxygen concentration of the high-temperature combustion exhaust gas, or the oxygen concentration measuring unit 24 itself. Damage caused by high temperature heat can be suppressed.

After that, the combustion exhaust gas flowing into the measurement flow path portion 414 is mixed with air as a driving gas at the suction portion 22, and in the second embodiment, it is dissipated to the atmosphere outside the building where the combustion equipment 10 is installed.

<Embodiment 3>
Subsequently, the combustion system 1 to which the third embodiment is applied will be described.
FIG. 6 is an overall view of the combustion system 1 of the third embodiment.
In the third embodiment, the same components as those in the other embodiments described above are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 6, the combustion system 1 of the third embodiment includes a combustion facility 10, a measuring device 50, and a terminal device 30 (see FIG. 1).
Then, in the combustion system 1 of the third embodiment, the basic configurations of the combustion equipment 10 and the terminal device 30 are the same as those of the other embodiments. However, in the combustion system 1 of the third embodiment, the configuration of the measuring device 50 is different from that of the measuring device 20 of the first embodiment and the measuring device 40 of the second embodiment. Further, the combustion equipment 10 of the third embodiment is an example in which the temperature of the combustion exhaust gas is high (for example, 1200 ° C.) and the combustion exhaust gas contains a relatively large amount of dust (for example, a glass volatile component).

[Measuring device 50]
The measuring device 50 includes an introduction path 51 in which a part of the combustion exhaust gas is guided from the combustion equipment 10, a suction unit 52 that sucks the combustion exhaust gas into the introduction path 51, a temperature measurement unit 23 that measures the temperature of the combustion exhaust gas, and combustion. It includes an oxygen concentration measuring unit 24 for measuring the oxygen component of the combustion exhaust gas for measuring the temperature of the exhaust gas.

(Introduction road 51)
A part of the combustion exhaust gas generated in the combustion equipment 10 is guided to the introduction path 51 when suction is performed by the suction unit 52. Further, the introduction path 51 is provided with at least a portion where the oxygen concentration measuring unit 24 is provided along the horizontal direction.
The introduction path 51 is provided so as to be inclined so that the height on the oxygen concentration measuring unit 24 side is higher than that on the combustion equipment 10 side. As a result, the measuring device 50 allows the drain water generated in the introduction path 51 to flow toward the furnace chamber 11 or the inlet of the flue (not shown).

In the combustion system 1 of the third embodiment, a part of the combustion exhaust gas is introduced into the furnace chamber 11 or the introduction path 51 connected to the inlet of the flue, and the components of the combustion exhaust gas are measured. Then, in the combustion system 1 of the third embodiment, the exhaust gas from the combustion exhaust gas from the furnace chamber 11 is mainly discharged in a flue (not shown).

(Suction unit 52)
The suction unit 52 controls the ejector 521 that sucks the combustion exhaust gas, the air supply unit 522 that supplies the drive gas to the ejector 521, the discharge path 523 that discharges the sucked combustion exhaust gas, and the gas flow in the discharge path 523. It has an electromagnetic valve 524 and.

The ejector 521 uses air as a driving gas and sucks combustion exhaust gas as a suction gas. The ejector 521 of the third embodiment sucks the combustion exhaust gas from the introduction path 51 by supplying air as the driving gas from the air supply unit 522, and discharges the gas obtained by mixing the driving gas and the combustion exhaust gas from the discharge path 523. To do.

The air supply unit 522 supplies air to the ejector 521. For the air supply unit 522 of the third embodiment, for example, a blower that supplies air at a predetermined pressure ratio, a compressor that supplies air at a pressure ratio higher than that of the blower, or the like can be used.

One of the discharge passages 523 is connected to the ejector 521, and the other extends to the outside of the building where the combustion equipment 10 is installed or into the flue. Then, the discharge path 523 forms a path through which the gas obtained by mixing the air discharged from the ejector 521 and the combustion exhaust gas is discharged outdoors or into the flue.

The solenoid valve 524 is provided in the discharge path 523 and opens and closes the discharge path 523. Then, the solenoid valve 524 of the third embodiment controls the flow of gas from the ejector 221 to the outside. Specifically, the solenoid valve 524 allows the exhaust of a mixture of air and combustion exhaust gas from the ejector 521 toward the outside when the discharge path 523 is opened. On the other hand, when the discharge path 523 is closed, the solenoid valve 524 limits the discharge of gas from the ejector 221 through the discharge path 523 to the outside.

(Temperature measuring unit 23)
The temperature measuring unit 23 of the third embodiment is provided on the upstream side of the oxygen concentration measuring unit 24 in the introduction path 51. Then, the temperature measuring unit 23 measures the temperature of the combustion exhaust gas flowing through the introduction path 51, and sends the measured temperature information to the terminal device 30.

(Oxygen concentration measuring unit 24)
The oxygen concentration measuring unit 24 of the third embodiment is provided on the upper side of the introduction path 51 in the vertical direction. Further, the oxygen concentration measuring unit 24 is installed so that the sensor surface for detecting the oxygen concentration faces downward in the vertical direction in the introduction path 51.

[Terminal device 30]
The basic configuration of the terminal device 30 of the third embodiment is the same as that of the first embodiment. However, in the third embodiment, the measurement control unit 31 (see FIG. 3) controls the air supply unit 522 and the solenoid valve 524 to perform "intermittent suction control" in the measurement device 50 and "backwashing" in the measurement device 50. "Control".

(Intermittent suction control)
In the intermittent suction control, the combustion exhaust gas is intermittently sucked by the suction unit 52 while the combustion equipment 10 is performing combustion. That is, the measuring device 50 of the third embodiment does not always suck the combustion exhaust gas by the suction unit 52 while the combustion equipment 10 is performing combustion, for example.
In the third embodiment, the measurement control unit 31 performs intermittent suction control by controlling the operations of the air supply unit 522 and the solenoid valve 524. More specifically, when the measurement control unit 31 sucks the combustion exhaust gas in the intermittent suction control, the measurement control unit 31 drives the air supply unit 522 to supply air to the ejector 521, and the solenoid valve 524 opens the discharge path 523. To.

Then, the intermittent suction control of the third embodiment is executed based on the information related to the combustion conditions of the combustion equipment. For example, the intermittent suction control includes (1) suction control subject to time information regarding the combustion time of the combustion equipment 10, and (2) suction control subject to temperature information regarding the temperature of the combustion exhaust gas of the combustion equipment 10. , (3) Suction control subject to treatment information regarding treatment of the object to be heated in the combustion equipment 10.

(1) Intermittent suction control based on time information As an example of intermittent suction control based on time information, the measurement control unit 31 has a predetermined time cycle when the combustion time of the combustion equipment 10 continues for a certain period of time. Intermittent suction control is performed. When the combustion time in the combustion equipment 10 elapses, the measurement control unit 31 sucks the combustion exhaust gas for a predetermined time. For example, the measurement control unit 31 causes the combustion exhaust gas to be sucked into the introduction path 51 by the suction unit 52 for 15 minutes each time in a cycle of once an hour.

(2) Intermittent suction control based on temperature information The measurement control unit 31 uses the suction unit 52 as an example of intermittent suction control based on temperature information when the temperature of the combustion exhaust gas flowing through the introduction path 51 is within a predetermined temperature range. The combustion exhaust gas is sucked into the introduction path 51. Then, when the temperature of the combustion exhaust gas flowing through the introduction path 51 falls outside the predetermined temperature range, the measurement control unit 31 stops the suction of the combustion exhaust gas by the suction unit 52.

The predetermined temperature range can be exemplified by, for example, a temperature range in which the temperature of the combustion exhaust gas is 100 ° C. or higher and 1300 ° C. or lower. For example, when the temperature of the combustion exhaust gas is lower than the saturation temperature (dew point), the water vapor generated by the dew condensation (condensation) of the water vapor in the combustion exhaust gas adheres to the oxygen concentration measuring unit 24, and causes the oxygen concentration measuring unit 24 to adhere. It may deteriorate. Therefore, in the third embodiment, as an example, the lower limit of the temperature range is set to 100 ° C., which is slightly higher than the saturation temperature of the combustion exhaust gas (about 50 to 60 ° C.). Further, for example, when the temperature of the combustion exhaust gas becomes higher than 1300 ° C., the oxygen concentration measuring unit 24 may be damaged by the heat of the combustion exhaust gas. Therefore, in the third embodiment, the upper limit of the temperature range is set to 1300 ° C. as an example.

(3) Intermittent suction control based on processing information As an example of intermittent suction control based on processing information, the measurement control unit 31 has process information among the production control information of the combustion equipment 10 received by the receiving unit 35 (see FIG. 3). Based on the above, the suction unit 52 sucks the combustion exhaust gas into the introduction path 51. In particular, the measurement control unit 31 of the third embodiment uses the information of the process in which the combustion exhaust gas is contaminated with dust or the like more than the process of simply burning in the furnace chamber 11 to control the intermittent suction. I do. Then, the measurement control unit 31 causes the combustion exhaust gas to be sucked into the introduction path 51 by the suction unit 52 when a specific process in which dust is likely to adhere to the oxygen concentration measurement unit 24 is not executed in the combustion exhaust gas. On the other hand, the measurement control unit 31 does not suck the combustion exhaust gas by the suction unit 52 when a specific process in which dust is likely to adhere to the oxygen concentration measurement unit 24 is being executed.

As a specific example, the measurement control unit 31 stops the suction of the combustion exhaust gas by the suction unit 52 when the process in which the flux treatment is performed is specified as the processing information in the combustion equipment 10 used as the aluminum melting furnace. On the other hand, the measurement control unit 31 sucks the combustion exhaust gas by the suction unit 52 when the flux treatment is not performed.

The measurement control unit 31 may execute intermittent suction control based on any one of the conditions of time information, temperature information, and processing information. Further, the measurement control unit 31 may execute intermittent suction control by combining at least two conditions or all of the plurality of conditions which are time information, temperature information, and processing information.

(Backwash control)
The backwash control causes a flow in the measuring device 50 in the direction opposite to the flow when the combustion exhaust gas is sucked into the introduction path 51. Then, in the backwash control, when the combustion exhaust gas is not guided to the oxygen concentration measuring unit 24, air is guided to the oxygen concentration measuring unit 24. In the third embodiment, the measurement control unit 31 performs backwash control by controlling the operations of the air supply unit 522 and the solenoid valve 524.

More specifically, when performing backwash control, the measurement control unit 31 drives the air supply unit 522 to supply air to the ejector 521, and the solenoid valve 524 closes the discharge path 523. That is, the measurement control unit 31 supplies air from the air supply unit 522 to the ejector 521 with the solenoid valve 524 closed in the discharge path 523, thereby generating an air flow from the suction unit 52 toward the combustion equipment 10. Let me.
Then, the backwash control of the third embodiment is executed during the period when the combustion exhaust gas is not sucked from the combustion equipment 10 by the suction unit 52 in the above-mentioned intermittent suction control.

When the measurement control unit 31 executes the intermittent suction control based on the time information, the measurement control unit 31 executes the backwash control during the period when the combustion exhaust gas is not sucked. For example, when the measurement control unit 31 performs intermittent suction control for 15 minutes in the 1-hour combustion period, it executes backwash control in the remaining 45 minutes of the 1-hour combustion period.

Further, when the measurement control unit 31 executes the intermittent suction control based on the temperature information, the measurement control unit 31 executes the backwash control when the temperature of the combustion exhaust gas is out of the predetermined temperature range. For example, when the measurement control unit 31 performs intermittent suction control when the temperature of the combustion exhaust gas is 100 ° C. or higher and 1300 ° C. or lower, the opposite is true when the temperature of the combustion exhaust gas is less than 100 ° C. or higher than 1300 ° C. Perform wash control.

Similarly, when the measurement control unit 31 executes the intermittent suction control based on the processing information, the measurement control unit 31 executes the backwash control when a specific processing is being executed. For example, when the measurement control unit 31 performs intermittent suction control when the flux treatment is not executed in the combustion equipment 10, the measurement control unit 31 executes the backwash control when the flux treatment is performed in the combustion equipment 10.

In the above-mentioned example, the backwash is always performed when the combustion exhaust gas is not sucked from the combustion equipment 10 to the introduction path 51, but the present invention is not limited to this example. For example, the measurement control unit 31 does not always perform backwashing when the combustion exhaust gas is not sucked from the combustion equipment 10 to the introduction path 51, but limits the backwashing control to a predetermined period. You may do it. In this case, the measurement control unit 31 stops the air supply unit 522 and closes the discharge path 523 by the solenoid valve 524. As described above, the measurement control unit 31 may provide a stop period in which neither the intermittent suction control nor the backwash control is performed during the combustion period of the combustion equipment 10.

Further, the measurement control unit 31 performs backwash control when combustion is being performed in the combustion equipment 10, but the present invention is not limited to this example. For example, the backwash control may be executed when combustion is not performed in the combustion equipment 10.

Subsequently, the operation of the combustion system 1 of the third embodiment will be described.
FIG. 7 is an operation flow diagram executed by the measurement control unit 31 of the combustion system 1 of the third embodiment.
FIG. 8 is an explanatory diagram of the operation of the combustion system 1 of the third embodiment.

As shown in FIG. 7, the measurement control unit 31 determines whether or not combustion is being performed in the combustion equipment 10 (S101). Then, when the combustion equipment 10 is not burning (No in S101), the measurement control unit 31 returns to S101 again and continues to determine whether or not the combustion equipment 10 is burning. ..
Further, when the combustion equipment 10 is burning (Yes in S101), the measurement control unit 31 acquires time information regarding the combustion time of the combustion equipment (S102). Further, the measurement control unit 31 determines whether or not the burning time has elapsed (S103). Then, when the combustion time has passed a predetermined time (Yes in S103), the measurement control unit 31 executes a specific process based on the information of the process contents performed in the combustion facility 10. Whether or not it is determined (S104). Further, the measurement control unit 31 determines whether or not the temperature of the combustion exhaust gas is within a predetermined temperature range when the specific process is not executed (No in S104) (S105).

Then, when the measurement control unit 31 determines that the temperature of the combustion exhaust gas is within a predetermined temperature range (Yes in S105), the measurement control unit 31 sucks the combustion exhaust gas by the ejector 521, and the oxygen concentration measuring unit 24 sucks the combustion exhaust gas. Oxygen concentration is measured (S106).
In the third embodiment, when the oxygen concentration is measured in S106, the measurement of the combustion time performed in S103 is reset, and when the measurement returns to S103 again, the combustion time of the combustion equipment 10 is reduced from zero. Count.

Here, as shown in FIG. 8A, when combustion is performed in the combustion equipment 10, the measurement control unit 31 drives the air supply unit 522 to transfer air as a driving gas to the ejector 521. Supply. Further, the measurement control unit 31 keeps the solenoid valve 524 open in the discharge path 523. As a result, the ejector 521 draws a part of the combustion exhaust gas from the furnace chamber 11 into the introduction path 51. Then, the oxygen concentration of the combustion exhaust gas flowing through the introduction path 51 is measured by the oxygen concentration measuring unit 24.

Further, as shown in FIG. 7, the measurement control unit 31 determines whether or not the suction of the combustion exhaust gas has elapsed the predetermined time (S107). If the suction of the combustion exhaust gas does not elapse the predetermined time (No in S107), the measurement control unit 31 returns to S106 and continues the suction of the combustion exhaust gas. On the other hand, when the measurement control unit 31 determines that the suction of the combustion exhaust gas has passed the predetermined time (Yes in S107), the measurement control unit 31 stops the suction of the combustion exhaust gas and then executes the backwash control (S108). ..

Here, as shown in FIG. 8B, when combustion is performed in the combustion equipment 10, the measurement control unit 31 drives the air supply unit 522 to transfer air as a driving gas to the ejector 521. Supply. Further, the measurement control unit 31 keeps the solenoid valve 524 closed in the discharge path 523. As a result, in the measuring device 50, an air flow opposite to that when a part of the combustion exhaust gas is drawn from the combustion equipment 10 into the introduction path 51 is generated. That is, in the measuring device 50, an air flow occurs from the introduction path 51 toward the combustion equipment 10. As a result, for example, the dust and drain water contained in the introduction path 51 are returned to the inside of the furnace chamber 11, and the introduction path 51 is cleaned. Further, in the measuring device 50, the intrusion of dust from the combustion equipment 10 into the introduction path 51 is suppressed by the air flow in the direction from the suction unit 52 to the combustion equipment 10.

When the measurement control unit 31 determines in S103 that the burning time has not elapsed (No in S103) and determines in S104 that a specific process is being executed (in S104). Yes), if it is determined that the temperature of the combustion exhaust gas is out of the predetermined temperature range (No in S105), the process proceeds to S108 to execute the backwash control.

As described above, in the combustion system 1 of the third embodiment, a part of the combustion exhaust gas is intermittently sucked into the introduction path 51 from the combustion equipment 10 based on predetermined conditions, and the oxygen concentration of the combustion exhaust gas is measured. Intermittent suction control is performed. As a result, in the third embodiment, as compared with the case where the oxygen concentration of the combustion exhaust gas is always measured when the combustion equipment 10 is performing combustion, the oxygen concentration measuring unit 24 has a relatively high temperature of the combustion exhaust gas. The period of exposure to the combustion exhaust gas is reduced, and damage to the oxygen concentration measuring unit 24 due to the measurement of the combustion exhaust gas is suppressed. Further, in the third embodiment, the backwash control is performed when the combustion exhaust gas is not sucked in the intermittent suction control. As a result, in the measuring device 50, the introduction path 51 including the oxygen concentration measuring unit 24 is cleaned, and the occurrence and damage of measurement defects due to the adhesion of water and dust to the oxygen concentration measuring unit 24 are suppressed.

<Embodiment 4>
Subsequently, the combustion system 1 to which the fourth embodiment is applied will be described.
FIG. 9 is an overall view of the combustion system 1 of the fourth embodiment.
In the fourth embodiment, the same reference numerals are given to the same configurations as those of the other embodiments described above, and detailed description thereof will be omitted.

As shown in FIG. 9, the combustion system 1 of the fourth embodiment includes a combustion facility 10, a measuring device 60, and a terminal device 30 (see FIG. 1).
Then, in the combustion system 1 of the fourth embodiment, the basic configurations of the combustion equipment 10 and the terminal device 30 are the same as those of the other embodiments. However, the combustion system 1 of the fourth embodiment has a different configuration of the measuring device 60 from the other embodiments. Further, in the combustion equipment 10 of the fourth embodiment, the temperature of the combustion exhaust gas is high (for example, 1200 ° C.), and the combustion exhaust gas contains a larger amount of dust (for example, a glass volatile component) as compared with the third embodiment. This is an example.

[Measuring device 60]
The measuring device 60 includes an introduction path 61 in which a part of the combustion exhaust gas is guided from the combustion equipment 10, a suction section 62 that sucks the combustion exhaust gas into the introduction path 61, and a cleaning section that cleans the introduction path 61 by supplying intake air. 63, a drain pot portion 64 (an example of a liquid storage portion) for collecting drain water in the introduction path 61, and an air suction unit 65 for drawing in the air sucked into the introduction path 61 are provided. Further, the measuring device 60 includes a temperature measuring unit 23 for measuring the temperature of the combustion exhaust gas and an oxygen concentration measuring unit 24 for measuring the oxygen component of the combustion exhaust gas.

(Introduction path 61)
One of the introduction paths 61 of the fourth embodiment is connected to the combustion equipment 10, and the other is connected to the suction unit 62. Then, a part of the combustion exhaust gas generated in the combustion equipment 10 is guided to the introduction path 61 when the suction is performed by the suction unit 62.
Further, the introduction path 61 has a first solenoid valve 611. The first solenoid valve 611 opens and closes the introduction path 61. Then, the first solenoid valve 611 of the fourth embodiment controls the flow of gas from the combustion equipment 10 to the suction unit 62. Specifically, when the introduction path 61 is opened, the first solenoid valve 611 allows the combustion exhaust gas to be sucked from the combustion equipment 10 toward the suction portion 62. On the other hand, when the introduction path 61 is closed, the first solenoid valve 611 limits the suction of the combustion exhaust gas from the combustion equipment 10 toward the suction unit 62.

In the combustion system 1 of the fourth embodiment, a part of the combustion exhaust gas is introduced into the introduction path 61 directly connected to the furnace chamber 11 to measure the components of the combustion exhaust gas. Then, in the combustion system 1 of the fourth embodiment, the exhaust gas from the combustion exhaust gas from the furnace chamber 11 is mainly discharged in a flue (not shown).

(Suction unit 62)
The suction unit 62 includes an ejector 621 that sucks the combustion exhaust gas, a first air supply unit 622 that supplies the drive gas to the ejector 621, and a discharge path 623 that discharges the sucked combustion exhaust gas.

The ejector 621 uses air as a driving gas and sucks combustion exhaust gas as a suction gas. The ejector 621 of the fourth embodiment sucks the combustion exhaust gas from the introduction path 61 by supplying air as a driving gas from the first air supply unit 622, and sends the mixed gas of the air and the combustion exhaust gas to the discharge path 623. Discharge toward.

The first air supply unit 622 supplies air to the ejector 621. The first air supply unit 622 of the fourth embodiment includes, for example, a blower (that is, a fan) that supplies air at a predetermined pressure ratio, or a compressor (for example, a pump) that supplies air at a pressure ratio higher than that of the blower. And blower) can be used.

One of the discharge passages 623 is connected to the ejector 621, and the other extends to the outside of the building where the combustion equipment 10 is provided. Then, the discharge path 623 forms a path in which the gas in which the air discharged from the ejector 621 and the combustion exhaust gas are mixed is discharged to the outside.

(Cleaning section 63)
The cleaning unit 63 includes a cleaning flow path 631 through which air flows, a second air supply unit 632 that supplies air to the cleaning flow path 631, and a second solenoid valve 633 that opens and closes the cleaning flow path 631.

One of the cleaning flow paths 631 is connected to the introduction path 61, and the other is connected to the second air supply unit 632. Further, the cleaning flow path 631 is connected between the first solenoid valve 611 and the combustion equipment 10 in the introduction path 61.
The second air supply unit 632 supplies air to the cleaning flow path 631. The second air supply unit 632 of the fourth embodiment includes, for example, a blower (that is, a fan) that supplies air at a predetermined pressure ratio, or a compressor (for example, a pump) that supplies air at a pressure ratio higher than that of the blower. And blower) can be used. Further, the first air supply unit 622 and the second air supply unit 632 can be shared.

The second solenoid valve 633 opens and closes the cleaning flow path 631. Then, the second solenoid valve 633 of the fourth embodiment controls the flow of gas between the cleaning flow path 631 and the introduction path 61. Specifically, the second solenoid valve 633 allows the flow of air from the cleaning flow path 631 to the introduction path 61 when the cleaning flow path 631 is opened. On the other hand, when the cleaning flow path 631 is closed, the second solenoid valve 633 limits the inflow of combustion exhaust gas from the introduction path 61 toward the cleaning flow path 631.

(Drain pot part 64)
FIG. 10 is an overall view of the drain pot portion 64 of the fourth embodiment.
FIG. 11 is an explanatory diagram of the water level adjusting unit 70 of the fourth embodiment.

As shown in FIG. 10, the drain pot portion 64 includes a first pot portion 64A (an example of a first liquid reservoir) and a second pot portion 64B (second liquid reservoir) connected in series with the first pot portion 64A. It has a connection flow path 64J that enables the flow of combustion exhaust gas between the first pot portion 64A and the second pot portion 64B.

The first pot unit 64A includes a water storage unit 641 capable of accommodating water, an inflow flow path 642 connecting the introduction path 61 and the water storage unit 641, and a water level adjusting unit 70 for adjusting the water level in the water storage unit 641 (see FIG. 11). ) And. The water level adjusting unit 70 will be described in detail later.

The water storage unit 641 is sealed except for a portion where an inflow flow path 642, a connection flow path 64J, a water supply channel 721 and a drainage channel 731, which will be described later, are provided. Then, in the fourth embodiment, a predetermined amount of water is stored in the water storage unit 641. In the water storage unit 641, water supplied by the water supply unit 72 described later and drain water flowing in from the introduction path 61 through the inflow flow path 642 are collected. Further, the first pot portion 64A of the fourth embodiment is adjusted by the water level adjusting portion 70 so that the amount of water stored in the water storage portion 641 is maintained at a predetermined amount.

One of the inflow flow paths 642 is connected to the introduction path 61, and the other is connected to the water storage unit 641. Further, the inflow flow path 642 is provided so that the position of the other end portion 642E on the water storage portion 641 side is lower than the water level of the water stored in the water storage portion 641. Then, the inflow flow path 642 submerges the combustion exhaust gas led from the introduction path 61 into the water stored in the water storage unit 641. That is, the inflow flow path 642 bubbles the combustion exhaust gas guided from the introduction path 61 at the water storage unit 641.

One of the connection flow paths 64J is connected to the water storage section 641 of the first pot section 64A, and the other is connected to the water storage section 641 of the second pot section 64B. Further, the connection flow path 64J is provided so that the position of one end J1 on the water storage portion 641 side of the first pot portion 64A is above the water level of the water stored in the water storage portion 641 of the first pot portion 64A. Be done. Further, in the connection flow path 64J, the position of the other end J2 on the water storage portion 641 side of the second pot portion 64B is lower than the water level of the water stored in the water storage portion 641 of the second pot portion 64B. Provided.
Then, the connection flow path 64J further sends the combustion exhaust gas after diving in the water stored in the water storage section 641 of the first pot section 64A to the water storage section 641 of the second pot section 64B on the downstream side.

The basic configuration of the second pot portion 64B is the same as that of the first pot portion 64A. That is, the second pot portion 64B has a water storage portion 641, a water level adjusting portion 70, and a discharge flow path 643.
One of the discharge flow paths 643 is connected to the water storage unit 641 and the other is connected to the introduction path 61. Further, the discharge flow path 643 is provided so that the position of one end 643E on the water storage portion 641 side is above the water level of the water stored in the water storage portion 641. Then, the discharge flow path 643 returns the combustion exhaust gas after diving in the water stored in the water storage section 641 of the second pot section 64B to the introduction path 61.

As described above, in the drain pot portion 64 of the fourth embodiment, moisture and dust contained in the combustion exhaust gas are removed by passing the combustion exhaust gas through the first pot portion 64A and the second pot portion 64B connected in series, respectively. I am doing it.

Next, the water level adjusting unit 70 for adjusting the water level in the water storage unit 641 of the drain pot unit 64 described above will be described in detail.

As shown in FIG. 11, the water level adjusting unit 70 includes a water level detection sensor 71, a water supply unit 72 that supplies water to the water storage unit 641, a drainage unit 73 that discharges water from the water storage unit 641, and their constituent parts. It has a water level control unit 74 that adjusts the water level in the water storage unit 641 by controlling the water level.

In the water level detection sensor 71 of the fourth embodiment, a plurality of electrodes to which an AC voltage is applied are installed in the water storage unit 641, and the water storage unit 641 is based on the electrode through which a current flows when water comes into contact with the plurality of electrodes. Identify the water level. In this example, the water level detection sensor 71 has a high water level electrode 71H capable of detecting a high water level H, a low water level electrode 71L capable of detecting a low water level L, and a medium water level M between the high water level H and the low water level L. It has a medium water level electrode 71M capable of detecting the above, and a common electrode (that is, an earth electrode) (not shown). Then, the water level detection sensor 71 sends the detection result of each electrode to the water level control unit 74.

In the first pot portion 64A, the position of the lower end portion of the low water level electrode 71L is provided above the end portion 642E (see FIG. 10) of the inflow flow path 642. This is so that the end portion 642E of the inflow flow path 642 is always in the water of the water storage portion 641. Further, in the first pot portion 64A, the position of the lower end portion of the high water level electrode 71H is provided below the end portion J1 (see FIG. 10) of the connection flow path 64J. This is so that the end portion J1 of the connection flow path 64J is always above the water surface of the water storage portion 641.
Further, in the second pot portion 64B, the position of the lower end portion of the low water level electrode 71L is provided above the end portion J2 (see FIG. 10) of the connection flow path 64J. Further, in the second pot portion 64B, the position of the lower end portion of the high water level electrode 71H is provided below the end portion 643E (see FIG. 10) of the discharge flow path 643.

The water supply unit 72 has a water supply channel 721 through which the supplied water flows, and a water supply solenoid valve 722 provided between the water supply channel 721 and the water storage unit 641. The water supply solenoid valve 722 is controlled by the water level control unit 74 to allow water to flow from the water supply channel 721 to the water storage unit 641 in a state where the valve is open and a water storage unit from the water supply channel 721. It forms a closed state with a valve that limits the flow of water into 641.

The drainage unit 73 has a drainage channel 731 through which the discharged water flows, and a drainage solenoid valve 732 provided between the water storage unit 641 and the drainage channel 731. The drainage solenoid valve 732 is controlled by the water level control unit 74 to allow water to be discharged from the water storage unit 641 to the drainage channel 731, in a state where the valve is open and a drainage channel from the water storage unit 641. It forms a closed state with a valve that limits the drainage of water to 731.

The water level control unit 74 controls the drainage unit 73 according to the water level detection result by the water level detection sensor 71 to maintain the water stored in the water storage unit 641 at a constant water level. Specifically, when the water level control unit 74 detects that the water level in the water storage unit 641 has reached the high water level H or higher by the high water level electrode 71H, the water level control unit 74 controls the drainage unit 73 to discharge the water in the water storage unit 641. .. Then, the water level control unit 74 stops the drainage by the drainage unit 73 at the timing when the state where the water is detected by the medium water level electrode 71M shifts to the state where the water is not detected.

Further, the water level control unit 74 controls the water supply unit 72 according to the water level detection result by the water level detection sensor 71 to maintain the water level of the water storage unit 641 within a certain range. Specifically, when the water level control unit 74 detects that the water level in the water storage unit 641 has become lower than the low water level L by the low water level electrode 71L, the water level control unit 74 controls the water supply unit 72 to supply water to the water storage unit 641. At this time, the water level control unit 74 stops the water supply by the water supply unit 72 at the timing when the state where the water is not detected by the medium water level electrode 71M shifts to the state where the water is detected.

Further, the water level control unit 74 of the fourth embodiment gives a predetermined notification to the user according to the water level detection result by the water level detection sensor 71. Specifically, when the high water level electrode 71H detects the high water level H or the low water level electrode 71L detects the low water level L, the water level control unit 74 sets a warning lamp provided at a predetermined position. It is turned on or a warning message regarding the water level is displayed on the screen by the terminal device 30.

(Atmospheric suction unit 65)
As shown in FIG. 9, the air suction unit 65 has a suction flow path 651 that sucks air from the atmosphere and a third solenoid valve 652 that controls the flow of gas in the suction flow path 651.
One of the suction flow paths 651 faces the atmosphere in the building where the combustion equipment 10 is installed, and the other is connected to the introduction path 61. Further, the suction flow path 651 is connected between the drain pot portion 64 and the oxygen concentration measuring portion 24 in the introduction path 61.
The third solenoid valve 652 allows air to flow from the suction flow path 651 into the introduction path 61, restricts the flow of air from the suction flow path 651 into the introduction path 61 when the valve is open, and the valve Form a closed state.

(Temperature measuring unit 23)
The temperature measuring unit 23 of the fourth embodiment is provided on the upstream side of the oxygen concentration measuring unit 24 in the introduction path 61. Then, the temperature measuring unit 23 measures the temperature of the combustion exhaust gas flowing through the introduction path 61, and sends the measured temperature information to the terminal device 30.

(Oxygen concentration measuring unit 24)
The oxygen concentration measuring unit 24 of the fourth embodiment is provided on the upper side of the introduction path 61 in the vertical direction. Further, the oxygen concentration measuring unit 24 is installed so that the sensor surface for detecting the oxygen concentration faces the lower side in the vertical direction in the measuring flow path unit 213.

[Terminal device 30]
The basic configuration of the terminal device 30 of the fourth embodiment is the same as that of the third embodiment. However, in the fourth embodiment, the measurement control unit 31 (see FIG. 3) controls the air supply unit 522 and the solenoid valve 524 to perform "intermittent suction control" in the measurement device 60 and "backwashing" in the measurement device 60. "Control".

(Intermittent suction control)
In the intermittent suction control of the fourth embodiment, the combustion exhaust gas is not always sucked into the introduction path 61 while the combustion equipment 10 is performing the combustion, but the combustion is performed while the combustion equipment 10 is performing the combustion. Exhaust gas is intermittently sucked into the introduction path 61. In the fourth embodiment, the measurement control unit 31 intermittently controls the operations of the first air supply unit 622, the second air supply unit 632, the first solenoid valve 611, the second solenoid valve 633, and the third solenoid valve 652. Perform suction control.
More specifically, when the measurement control unit 31 sucks the combustion exhaust gas into the introduction path 61, the measurement control unit 31 drives the first air supply unit 622 to supply air to the ejector 621, and the first solenoid valve 611 sends the introduction path 61. Make it open. Further, when the measurement control unit 31 sucks the combustion exhaust gas into the introduction path 61, the air supply by the second air supply unit 632 is stopped, the second solenoid valve 633 sets the cleaning flow path 631, and the third solenoid valve 652. Keeps the suction flow paths 651 closed.

Then, the intermittent suction control of the fourth embodiment is executed based on predetermined conditions as in the third embodiment. That is, in the fourth embodiment, the measurement control unit 31 executes intermittent suction control based on any one of the conditions of time information, temperature information, and processing information.
Also in the fourth embodiment, the measurement control unit 31 executes the intermittent suction control by combining at least two conditions or all the conditions among the plurality of conditions which are the time information, the temperature information, and the processing information. You may.

(Backwash control)
The backwash control of the fourth embodiment causes a flow different from the flow when the combustion exhaust gas is sucked into the introduction path 61 in the measuring device 60. In the fourth embodiment, the measurement control unit 31 controls the operations of the first air supply unit 622, the second air supply unit 632, the first solenoid valve 611, the second solenoid valve 633, and the third solenoid valve 652. Perform wash control.

More specifically, the measurement control unit 31 of the fourth embodiment keeps the third solenoid valve 652 open and drives the first air supply unit 622 to supply air to the ejector 621 when performing backwash control. .. That is, the measurement control unit 31 creates an air flow from the suction flow path 651 to the introduction path 61.
Further, when performing backwash control, the measurement control unit 31 drives the second air supply unit 632 by keeping the first solenoid valve 611 in a closed state and the second solenoid valve 633 in an open state. That is, the measurement control unit 31 creates a flow of air from the cleaning flow path 631 through the introduction path 61 toward the combustion equipment 10.
Then, the backwash control of the fourth embodiment is executed during the period in which the combustion exhaust gas is not sucked by the ejector 621 in the above-mentioned intermittent suction control.

Subsequently, the operation of the combustion system 1 in the fourth embodiment will be described.
FIG. 12 is an explanatory diagram of the operation of the combustion system 1 of the fourth embodiment.

As shown in FIG. 12A, combustion is performed in the combustion equipment 10. Then, when the predetermined conditions are satisfied, the measurement control unit 31 executes the intermittent suction control by intermittently drawing the combustion exhaust gas from the combustion equipment 10 into the introduction path 61. Specifically, the measurement control unit 31 supplies air as a driving gas to the ejector 621 by driving the first air supply unit 622. Further, the measurement control unit 31 keeps the introduction path 61 open by the first solenoid valve 611. As a result, the suction unit 62 draws a part of the combustion exhaust gas from the combustion equipment 10 into the introduction path 61. Moisture and dust are removed from the combustion exhaust gas drawn into the introduction path 61 at the drain pot portion 64. Then, the oxygen concentration of the combustion exhaust gas flowing through the introduction path 61 is measured by the oxygen concentration measuring unit 24.

Further, as shown in FIG. 12B, combustion is performed in the combustion equipment 10. Then, in the fourth embodiment, when the combustion exhaust gas is not sucked in the intermittent suction control, the measurement control unit 31 executes the backwash control. That is, in the backwash control of the fourth embodiment, when the combustion exhaust gas is not guided to the oxygen concentration measuring unit 24, air is guided to the oxygen concentration measuring unit 24.
Specifically, the measurement control unit 31 supplies air as a driving gas to the ejector 621 by driving the first air supply unit 622. Further, the measurement control unit 31 keeps the suction flow path 651 open by the third solenoid valve 652. Then, the ejector 621 causes an air flow from the suction flow path 651 to the introduction path 61. As a result, for example, dust and drain water adhering to the introduction path 61, the temperature measuring unit 23, and the oxygen concentration measuring unit 24 are discharged from the discharge path 623 to the outside.

Further, the measurement control unit 31 drives the second air supply unit 632 with the first solenoid valve 611 closed and the second solenoid valve 633 open. Then, the second air supply unit 632 causes an air flow from the cleaning flow path 631 to the combustion facility 10 through the introduction path 61. As a result, for example, the dust and drain water adhering to the introduction path 61 are pushed back to the furnace chamber 11 of the combustion equipment 10.
In particular, in the fourth embodiment, the drain pot portion 64 is provided in the path of the introduction path 61. Therefore, in the fourth embodiment, the air flow in the backwash control bypasses the drain pot portion 64.

As described above, in the combustion system 1 of the fourth embodiment, a part of the combustion exhaust gas is intermittently sucked into the introduction path 61 from the combustion equipment 10 based on predetermined conditions to reduce the oxygen concentration of the combustion exhaust gas. Intermittent suction control for measurement is performed. As a result, in the fourth embodiment, as compared with the case where the oxygen concentration of the combustion exhaust gas is always measured when the combustion equipment 10 is performing combustion, the oxygen concentration measuring unit 24 has a relatively high temperature of the combustion exhaust gas. The period of exposure to the combustion exhaust gas is reduced, and the consumption of the oxygen concentration measuring unit 24 due to the measurement of the combustion exhaust gas is suppressed. Further, in the fourth embodiment, the backwash control is performed when the combustion exhaust gas is not sucked in the intermittent suction control. As a result, in the measuring device 60, the introduction path 61 including the oxygen concentration measuring unit 24 is cleaned, so that measurement defects and damages due to dirt on the oxygen concentration measuring unit 24 are suppressed.

Subsequently, the water level adjusting unit 70 of the modified example will be described.
13 (A) is an explanatory view of the water level adjusting unit 70 of the modified example 1, and FIG. 13 (B) is an explanatory view of the water level adjusting unit 70 of the modified example 2.
FIG. 14 (A) is an explanatory diagram of the water level adjusting unit 70 of the modified example 3, and FIG. 14 (B) is an explanatory diagram of the water level adjusting unit 70 of the modified example 4.

<Modification example 1>
The basic configuration of the water level adjusting unit 70 of the first modification is the same as that of the fourth embodiment described above.
As shown in FIG. 13A, the water level adjusting unit 70 of the first modification has a water level detection sensor 71, a water supply unit 72, a drainage unit 73, and a water level control unit 74. The water level detection sensor 71 of the water level adjusting unit 70 of the first modification has a high water level electrode 71H capable of detecting a high water level, a low water level electrode 71L capable of detecting a low water level, and a common electrode (not shown). ing. That is, unlike the water level adjusting unit 70 of the fourth embodiment, the water level adjusting unit 70 of the modified example 1 does not have the medium water level electrode 71M.

Then, when the water level adjusting unit 70 of the modification 1 detects that the water level of the water stored in the water storage unit 641 becomes lower than the low water level L by the low water level electrode 71L, the water level adjusting unit 70 controls the water supply unit 72 to cause the water storage unit 641. Supply water. At this time, the water level control unit 74 supplies water by the water supply unit 72 for a predetermined time. This predetermined time is specified based on the time when the water level becomes the medium water level M by supplying water from the water supply unit 72.

Further, when the water level adjusting unit 70 of the modified example 1 detects that the water level in the water storage unit 641 becomes higher than the high water level H by the high water level electrode 71H, the water level adjusting unit 70 controls the drainage unit 73 to discharge water from the water storage unit 641. To do. At this time, the water level control unit 74 drains water by the drainage unit 73 for a predetermined time. This predetermined time is specified based on the time when the water level becomes the medium water level M when the drainage unit 73 discharges water.

<Modification 2>
The basic configuration of the water level adjusting unit 70 of the second modification is the same as that of the fourth embodiment described above.
As shown in FIG. 13B, the water level adjusting unit 70 of the second modification is a pressure sensor that detects the hydrostatic pressure of the water stored in the water supply unit 72, the drainage unit 73, the water level control unit 74, and the water storage unit 641. Has 75. That is, the water level adjusting unit 70 of the second modification has a pressure sensor 75 instead of the water level detecting sensor 71 of the water level adjusting unit 70 of the fourth embodiment.

The pressure sensor 75 is installed on the lower end side of the water storage unit 641 in the vertical direction and slightly above the bottom portion of the water storage unit 641. Then, the pressure sensor 75 detects the hydrostatic pressure of the water stored in the water storage unit 641.
The water level of the water accumulated in the water storage unit 641 is proportional to the amount of water accumulated in the water storage unit 641, that is, the hydrostatic pressure of the water. Therefore, the water level adjusting unit 70 of the second modification 2 identifies the water level of the water accumulated in the water storage unit 641 by detecting the hydrostatic pressure of the water storage unit 641.

Then, the water level control unit 74 controls the water supply unit 72 and the drainage unit 73 according to the water level specified based on the pressure sensor 75. For example, when the specified water level exceeds the high water level H, the water level control unit 74 of the second modification discharges water from the water storage unit 641 using the drainage unit 73 until the medium water level M is specified. On the other hand, when the specified water level falls below the low water level L, the water level control unit 74 of the second modification supplies water to the water storage unit 641 using the water supply unit 72 until the medium water level M is specified.

<Modification example 3>
The basic configuration of the water level adjusting unit 70 of the modified example 3 is the same as that of the fourth embodiment described above.
As shown in FIG. 14A, the water level adjusting unit 70 of the modified example 3 has a weight sensor 76 that detects the weight of the water supply unit 72, the drainage unit 73, the water level control unit 74, and the water storage unit 641. .. That is, the water level adjusting unit 70 of the modified example 3 has a weight sensor 76 instead of the water level detection sensor 71 of the water level adjusting unit 70 of the fourth embodiment.

The weight sensor 76 detects the weight of the water stored in the water storage unit 641. The water level of the water accumulated in the water storage unit 641 is proportional to the amount of water accumulated in the water storage unit 641, that is, the weight of the water. Therefore, the water level adjusting unit 70 of the modified example 3 identifies the water level of the water accumulated in the water storage unit 641 by detecting the weight of the water storage unit 641.

Then, the water level control unit 74 controls the water supply unit 72 and the drainage unit 73 according to the water level specified based on the weight sensor 76. For example, when the specified water level exceeds the high water level H, the water level control unit 74 of the third modification discharges water from the water storage unit 641 using the drainage unit 73 until the medium water level M is specified. On the other hand, when the specified water level falls below the low water level L, the water level control unit 74 of the second modification supplies water to the water storage unit 641 using the water supply unit 72 until the medium water level M is specified.

<Modification example 4>
The basic configuration of the water level adjusting unit 70 of the modified example 4 is the same as that of the fourth embodiment described above.
As shown in FIG. 14B, the water level adjusting unit 70 of the modified example 4 has a water supply unit 72, a drainage unit 73, a water level control unit 74, a pressure sensor 75, and a weight sensor 76. That is, the water level adjusting unit 70 of the modified example 4 has a pressure sensor 75 and a weight sensor 76 instead of the water level detection sensor 71 of the water level adjusting unit 70 of the fourth embodiment.

The water level adjusting unit 70 of the modified example 4 basically controls the water supply unit 72 and the drainage unit 73 based on the water level specified by using the weight sensor 76, as in the modified example 3.
Further, the water level adjusting unit 70 of the modified example 4 specifies the water level using the pressure sensor 75 as in the modified example 2. Here, when dust or the like is accumulated on the bottom of the water storage unit 641 in a certain amount or more, between the water level specified based on the pressure sensor 75 and the water level specified based on the weight sensor 76. There is a difference. Therefore, the water level control unit 74 of the modified example 4 can identify that dust is accumulated in the water storage unit 641 based on the detection result by the pressure sensor 75 and the detection result by the weight sensor 76. That is, in the water level adjusting unit 70 of the modified example 4, the water supply unit 72, the drainage unit 73, and the water level control unit 74 (an example of the specific unit) specify the amount of dust (that is, foreign matter) accumulated in the water storage unit 641. ..

When the water level control unit 74 of the modified example 4 determines that dust is accumulated on the water storage unit 641, the warning lamp provided at a predetermined location is turned on, or the terminal device 30 warns about dust accumulation. Display a message on the screen.

Here, the hardware configuration of the terminal device 30 of the present embodiment will be described.
The terminal device 30 includes a CPU (Central Processing Unit) as a computing means, a memory as a main storage means, a magnetic disk device (HDD: Hard Disk Drive), a network interface, a display mechanism including a display device, a voice mechanism, and a voice mechanism. , Equipped with input devices such as keyboard and mouse.
The OS program and the application program are stored in the magnetic disk device. Then, by reading these programs into the memory and executing them in the CPU, the functions of each functional unit in each of the terminal devices 30 of the present embodiment are realized.
Further, in the combustion system 1 of the present embodiment, the program for realizing a series of operations in the terminal device 30 may be provided not only by communication means but also by storing in various recording media.

The configuration for realizing a series of functions performed in the combustion system 1 of the present embodiment is not limited to the above-mentioned example. For example, the function realized by the single terminal device 30 in the above-described embodiment may be realized by a plurality of terminal devices 30 or other devices.

Further, as described above, in the first to fourth embodiments and the first to fourth modifications, all or a part of the configurations described in one embodiment or one modification may be used in other embodiments or other embodiments. It may be applied to or combined with a modified example of.

For example, in the first embodiment, the component of the combustion exhaust gas directly derived from the furnace chamber 11 may be measured, and in the second to fourth embodiments, the component of the combustion exhaust gas derived from the flue 15 has an oxygen concentration. It may be measured by the measuring unit 24.
Further, in the first to fourth embodiments, for example, when an updraft in the flue 15 or a furnace pressure in the furnace chamber 11 causes a flow of combustion exhaust gas in an amount sufficient for the component measurement by the oxygen concentration measuring unit 24. The configuration of the suction unit (22, 52, 62) is not essential.

1 ... Combustion system, 10 ... Combustion equipment, 20 ... Measuring device, 21 ... Introduction path, 22 ... Suction unit, 23 ... Temperature measuring unit, 24 ... Oxygen concentration measuring unit, 30 ... Terminal device, 31 ... Measurement control unit, 32 ... acquisition unit, 33 ... storage unit, 34 ... transmission unit, 35 ... reception unit, 36 ... presentation unit, 40 ... measurement device, 41 ... introduction path, 50 ... measurement device, 51 ... introduction path, 52 ... suction unit, 60 ... Measuring device, 61 ... Introduction path, 62 ... Suction part, 70 ... Water level adjustment part

Claims (10)

Combustion equipment that burns to heat the object to be heated,
A detector that detects the components of the combustion exhaust gas of the combustion equipment,
A control unit that controls to intermittently guide the combustion exhaust gas to the detection unit,
Combustion system characterized by being equipped with. The combustion system according to claim 1, wherein the control unit intermittently guides combustion exhaust gas to the detection unit based on information related to combustion conditions of the combustion equipment. The combustion system according to claim 2, wherein the control unit intermittently guides combustion exhaust gas to the detection unit by using time information regarding a combustion time in the combustion equipment. The combustion system according to claim 2, wherein the control unit intermittently guides the combustion exhaust gas to the detection unit using temperature information regarding the temperature of the combustion exhaust gas. The combustion system according to claim 2, wherein the control unit intermittently guides combustion exhaust gas to the detection unit by using processing information regarding processing of the object to be heated in the combustion equipment. The combustion system according to claim 1, wherein the control unit guides air to at least the detection unit when the combustion exhaust gas is not guided to the detection unit. A suction unit that sucks a part of the combustion exhaust gas from the combustion equipment and introduces the combustion exhaust gas into the introduction path is provided.
The detection unit is provided in the introduction path and is provided.
The combustion system according to claim 1, wherein the control unit controls the suction unit to guide combustion exhaust gas from the combustion equipment to the detection unit via the introduction path. The suction unit supplies air as a driving fluid from the supply unit to the ejector to introduce combustion exhaust gas from the combustion equipment into the introduction path.
The control unit supplies air from the supply unit to the ejector when guiding the combustion exhaust gas to the detection unit, and when the combustion exhaust gas is not guided to the detection unit, the control unit supplies the combustion exhaust gas to the introduction path. The combustion system according to claim 7, wherein the control for supplying air is performed. A control unit that intermittently guides the combustion exhaust gas to the detection unit that detects the components of the combustion exhaust gas of the combustion equipment where combustion is performed,
An acquisition unit that acquires component information of combustion exhaust gas detected by the detection unit from the detection unit, and
A terminal device characterized by comprising. On the computer
A function that intermittently guides the combustion exhaust gas to the detector that detects the components of the combustion exhaust gas of the combustion equipment where combustion is performed, and
A function to acquire the component information of the combustion exhaust gas detected by the detection unit from the detection unit, and
A program that realizes.