JP2010202477A - Hydrogen-containing gas producing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hydrogen-containing gas producing apparatus capable of preventing discharging a fuel gas for heating or carbon monoxide gas as it has a high concentration to the outside even when a combustion detecting sensor is not provided in a combustion part. <P>SOLUTION: The hydrogen-containing gas producing apparatus includes an exhaust fan 58 exhausting a combustion waste gas to the outside, from a combustion part for heating a reforming treatment part by combusting the fuel gas for heating and an operation control means C is structured to control operations so that the exhaust fan operation treatment for operating the exhaust fan 58 is carried out when an operation starting command is ordered and after that, a combustion treatment for operating a combustion part is carried out and next, a reforming treatment for reforming in a reforming treatment part when the reforming starting condition is satisfied and further when it is detected by an exhaust fan working condition detecting means that the exhaust fan is not under operation condition through the exhaust fan is scheduled to be under the operation condition, the combustion treatment and the reforming treatment are not carried out. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention includes a reforming processing unit that reforms a mixed gas containing a raw fuel gas containing hydrocarbons and water vapor to generate a reformed gas containing hydrogen gas,
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. The present invention relates to a hydrogen-containing gas generator configured to be controlled.

The hydrogen-containing gas generating device is configured to generate a reformed gas containing hydrogen gas by reforming a mixed gas containing a raw fuel gas containing hydrocarbons and steam in a reforming processing unit, For example, reformed gas is supplied to the fuel cell (see, for example, Patent Documents 1 and 2).
The hydrogen-containing gas generation device includes a shift processing unit that converts carbon monoxide contained in the reformed gas after being reformed by the reforming processing unit into carbon dioxide, and a process performed by the shift processing unit. A selective oxidation unit that selectively oxidizes carbon monoxide remaining in the generated gas is also provided.

  Although not described in the exemplified Patent Documents 1 and 2, generally, the combustion part is provided with a combustion detection sensor such as a frame rod that acts on the flame to detect the combustion state of the combustion part. If the combustion control of the combustion part is not detected by the combustion detection sensor after the operation control means starts the combustion process for activating the combustion part, the combustion part is not properly ignited. If the combustion state of the combustion part is no longer detected based on the detection information of the combustion detection sensor after starting the reforming process after starting the combustion of the combustion part or starting the reforming process, the combustion part will misfire. It is determined that the non-combustion state is present.

  Incidentally, in the hydrogen-containing gas generation device described in Patent Document 2, the combustion chamber that forms the combustion space in the combustion section has its transfer to one side of the heat transfer plate that transfers the heat of the combustion section to the reforming processing section. A reforming chamber, which is provided in a state of being formed in a thin flat rectangular parallelepiped shape in the thickness direction of the heat plate and forms a space for reforming processing in the reforming processing section, is provided on the other side surface of the heat transfer plate. The heat transfer plate is provided in a state of being formed in a flattened rectangular parallelepiped shape that is thin in the thickness direction of the heat transfer plate.

JP 2008-251446 A JP 2008-247697 A

  By the way, in the conventional hydrogen-containing gas generation device, a combustion detection sensor is provided in the combustion section. From various viewpoints such as simplifying the configuration and improving the durability of the apparatus, combustion detection is performed in the combustion section. It has been considered that no sensor is provided.

  To explain that it is necessary to improve the durability of the apparatus, the hydrogen-containing gas generator described in Patent Document 2 has a thin flat combustion chamber that forms a combustion space in the combustion section as described above. In the hydrogen-containing gas generating apparatus as described in Patent Document 2, when a combustion detection sensor is provided in the combustion part, a combustion space is formed in the combustion part. The combustion detection sensor is inserted so as to penetrate the combustion chamber forming member, and the combustion chamber forming member and the combustion detection sensor are attached by welding.

In the hydrogen-containing gas generating device described in Patent Document 2, when the reforming process is performed, the combustion unit is, for example, about several hundred degrees Celsius in order to maintain the temperature of the reforming unit at a high temperature suitable for reforming. It will be a high temperature. As described above, the combustion section is in a high temperature state when the reforming process is performed, but when the reforming process is not performed, the supply of the heating fuel gas and the combustion air is stopped, so that the temperature of the combustion section is low. If the state where the reforming process is executed and the state where the reforming process is not executed are alternately repeated, the combustion section repeats the high temperature state and the low temperature state, so that the combustion chamber forming member repeatedly expands and contracts. become.
As a result, if the period of use of the hydrogen-containing gas generation device becomes long, the combustion chamber forming member repeatedly expands and contracts, and there is a possibility that the welded portion between the combustion chamber forming member wall surface and the combustion detection sensor may be fatigued. There is a risk that the durability is low.

  Therefore, it has been considered to detect an incombustion state or an incomplete combustion state of the combustion portion without providing a combustion detection sensor in the combustion portion.

  That is, when the temperature of the reforming processing unit detected by the reforming temperature detecting unit does not rise properly as the operation control unit starts from the combustion process to the start of the reforming process, The combustion section is not properly ignited, or the combustion section is combusting, but the amount of air required for combustion is insufficient for fuel, etc. In the case where the temperature of the reforming processing unit detected by the reforming temperature detecting means is inappropriately lowered after starting the reforming process after determining that it is in a complete combustion state, It may be configured to determine that the combustion section is in a non-combustion state such as misfiring or an incomplete combustion state in which the combustion section is not properly combusting. And if an operation control means discriminate | determines that a combustion part is a non-combustion state or an incomplete combustion state, it will comprise so that a combustion process may be stopped.

  By the way, when the sensor that detects the temperature of the shift treatment unit and the selective oxidation unit is equipped, the temperature of the shift treatment unit and the selective oxidation unit is not appropriate after the operation control means starts the reforming process. In such a case, it may be configured to discriminate that it is in the non-combustion state or the incomplete combustion state, and the combustion process may be stopped.

  By the way, even if the operation control means starts the combustion process, the temperature of the reforming process part does not rise rapidly but rises slowly. It takes a long time to determine whether or not the temperature of the fuel has risen reliably, and it takes a long time to determine that the combustion section is in the non-combustion state after starting the combustion process. Take it. Similarly, even when an incomplete combustion state occurs, it takes time until it is determined that the combustion portion is in an incomplete combustion state after the combustion process is started.

  In addition, after the operation control means starts the reforming process, when the combustion unit is switched from the combustion state to the non-combustion state, the temperature of the reforming processing unit will decrease, Since the temperature of the reforming unit gradually decreases, it is necessary to determine whether or not the temperature of the reforming unit is reliably lowered from the time when the combustion unit switches from the combustion state to the non-combustion state. Takes a long time. Similarly, even when an incomplete combustion state has occurred, the temperature of the shift treatment part and the selective oxidation part gradually decreases from the time when the combustion part switches from the combustion state to the incomplete combustion state. It takes a long time to determine whether or not the temperature has surely dropped from the time when the part switches from the combustion state to the incomplete combustion state.

For this reason, when the operation control means determines that the combustion part is in the non-combustion state or the incomplete combustion state, in the case where the combustion process is configured to stop, the combustion part is incomplete when the combustion process is started. Even if it is a combustion state or an incomplete combustion state, the heating fuel gas is supplied to the combustion section until it is determined that the combustion state is incomplete or incomplete and the combustion process is stopped. Even if the combustion part switches from the combustion state to the non-combustion state or the incomplete combustion state after the reforming process is started after the state is continued, the combustion part is in the non-combustion state or the incomplete combustion from that point. The state in which the heating fuel gas is supplied to the combustion section continues until it is determined that the state is in the state and the combustion process is stopped.
Therefore, when the operation control means determines that the combustion part is in the non-combustion state or the incomplete combustion state, it is determined that the temperature is surely lowered when the combustion process is configured to stop. Until the combustion process is stopped, the state in which the fuel gas for heating continues to be supplied to the combustion section continues even though the combustion section is in the non-combustion state or incomplete combustion state. There is a risk that the fuel gas for heating supplied to the combustion section will be discharged to the outside with a high concentration, or a carbon monoxide gas generated due to incomplete combustion may be discharged to the outside with a high concentration. There is a need to avoid this situation.

  An object of the present invention is to provide hydrogen that can prevent heating fuel gas and carbon monoxide gas from being discharged outside in a high concentration even when no combustion detection sensor is provided in the combustion section. It is in providing a contained gas generating device.

A hydrogen-containing gas generating apparatus according to the present invention includes a reforming processing unit that generates a reformed gas containing hydrogen gas by reforming a mixed gas containing a raw fuel gas containing hydrocarbons and steam.
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. Is configured to control,
The operation control means is
If the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. If the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition after the reforming process is started, the combustion process and the reforming process are stopped. Configured to
An exhaust fan for exhausting combustion exhaust gas from the combustion section to the outside;
Exhaust fan operating state detecting means for detecting whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists is provided,
The operation control means is
When the exhaust fan is scheduled to be in the operating state and the exhaust fan operating state detecting means detects that the exhaust fan is not in the operating state, the combustion process and the reforming process are not executed. It is in the point.

  That is, when the operation start command is instructed, the operation control means executes a combustion process for causing the combustion section to perform a combustion operation, and then the temperature detected by the reforming temperature detecting means satisfies the condition for starting the reforming process. When satisfied, the operation of the heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means is performed in order to perform the reforming process for reforming in the reforming processing section. If the temperature detected by the reforming temperature detecting means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is performed. Will stop.

As the initial combustion confirmation condition, for example, there is a condition such as whether or not the temperature increase rate of the detected value of the reforming temperature detecting means is larger than the set increase rate. The control means determines that the initial combustion confirmation condition is satisfied if the temperature increase rate of the detected value of the reforming temperature detection means is greater than the set increase rate. On the other hand, if the temperature increase rate of the detected value of the reforming temperature detection means is equal to or less than the set increase rate, it is determined that the initial combustion confirmation condition is not satisfied.
In addition to the above-described conditions, there are various conditions such as whether or not the detected value of the reforming temperature detecting means rises to the temperature for determining combustion start after starting the combustion process. The following conditions can be used.

  As described above, when the operation control means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. It can be avoided that the operation control means continues to execute the combustion process while the part is in the non-combustion state or the incomplete combustion state and the heating fuel gas is supplied to the combustion part.

  In addition, after the reforming process is started, the operation control unit stops the combustion process and the reforming process when the temperature detected by the reforming temperature detection unit does not satisfy the reforming combustion confirmation condition. It will be.

As the combustion confirmation condition during reforming, for example, there is a condition such as whether or not the detected value of the reforming temperature detecting means is higher than a set lower limit value. If this condition is adopted, the operation control means If the detection value of the reforming temperature detecting means is higher than the set lower limit value, the combustion confirmation condition during reforming is satisfied, and when the detected value of the reforming temperature detecting means falls below the set lower limit value, It is determined that the condition for confirming combustion during reforming is not satisfied.
In addition to the above-described conditions, the reforming combustion confirmation conditions include various conditions such as whether or not the temperature decrease rate of the detected value of the reforming temperature detection means is smaller than the set decrease rate. The following conditions can be used.

  As described above, when the operation control means starts the reforming process and determines that such a reforming combustion confirmation condition is not satisfied, the combustion process and the reforming process are stopped. Therefore, the operation control means continuously executes the combustion process and the reforming process while the combustion part remains in the non-combustion state or the incomplete combustion state, and the combustion part remains heated in the non-combustion state or the incomplete combustion state. It can be avoided that the fuel gas is continuously supplied to the combustion section.

  As described above, when the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process. After the combustion process is stopped and the reforming process is started, if the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition, the combustion process and the reforming process are performed. In the case of stopping, that is, when the operation control means determines that the combustion section is in the non-combustion state or the incomplete combustion state, the operation control means is configured to stop the combustion process. Until the combustion process is stopped, although the combustion part is in the non-combustion state or incomplete combustion state, the state in which the fuel gas for heating continues to be supplied to the combustion part continues. Combustion exhaust from the section Since an exhaust fan that exhausts the air to the outside is provided, even if the combustion fuel is supplied to the combustion portion while the combustion portion remains in an incombustible state or an incomplete combustion state due to the operation of the exhaust fan, The fuel gas for heating and the carbon monoxide gas generated by incomplete combustion can be discharged to the outside in a state diluted with air ventilated by an exhaust fan.

  Moreover, it is detected by the exhaust fan operating state detecting means whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists, and the operation control means is scheduled to be in the operating state. When the exhaust fan operating state detecting means detects that the engine is not in the operating state, the combustion process and the reforming process are not executed. For example, the exhaust fan drive circuit fails. When the exhaust fan is not in operation due to abnormalities such as, even if an operation start command is commanded, the operation control means does not start the combustion process, and the exhaust fan is not operating and the combustion section is heated. The exhaust fan operating state detecting means detects that the fuel gas is not in operation when the combustion gas and the reforming process are being executed. If that results in stopping the combustion process and reforming process, the exhaust fan can be avoided heating fuel gas is supplied to the combustion portion in a state where no operation.

  For example, if the operation control unit is configured to control the operation and stop of the exhaust fan, the operation control unit performs a process for starting the operation of the exhaust fan and then performs the operation of the exhaust fan. If the time until the process of stopping the operation is performed corresponds to the time when the operation state is scheduled, and if the exhaust fan is configured to always operate, the operation control means Since it is assumed that the exhaust fan is always in operation in the activated state, it corresponds to the case where all the times when the operation control means is activated are scheduled to be in the activated state. become.

  Therefore, according to the first characteristic configuration, even when the combustion detection sensor is not provided in the combustion section, it is possible to prevent the heating fuel gas and the carbon monoxide gas from being discharged to the outside with a high concentration. A hydrogen-containing gas generator capable of achieving the above has been provided.

A second characteristic configuration of the present invention is a reforming processing unit that reforms a mixed gas containing a raw fuel gas containing hydrocarbons and steam to generate a reformed gas containing hydrogen gas,
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. A hydrogen-containing gas generator configured to control, comprising:
The operation control means is
If the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. If the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition after the reforming process is started, the combustion process and the reforming process are stopped. Configured to
An exhaust fan that starts operating as the operation start command is commanded or constantly operates and exhausts the combustion exhaust gas from the combustion section to the outside;
Exhaust fan operating state detecting means for detecting whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists is provided,
The operation control means is
When the exhaust fan is scheduled to be in the operating state between the time when the operation start command is issued and the time when the combustion process is started, the exhaust fan operating state detecting means is not in the operating state. When the is detected, the combustion process is not started.

  According to the second characteristic configuration, the temperature detected by the reforming temperature detecting means satisfies the initial combustion confirmation condition between the time when the operation control means starts the combustion process and the time when the reforming process is started. If not, after the combustion process is stopped and the reforming process is started, the combustion process and the reforming are performed when the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition. Since the process is configured to be stopped, the operation control means continues the combustion process while the combustion part remains in the non-combustion state or the incomplete combustion state, similarly to the effect described for the first characteristic configuration. It is possible to avoid the situation where the fuel gas for heating is supplied to the combustion section. Since the initial combustion confirmation condition, the reforming combustion confirmation condition, and the processing contents of the operation control means based on the conditions are the same as those in the first characteristic configuration, detailed description thereof is omitted here.

  Further, according to the second feature configuration, similarly to the operation and effect described for the first feature configuration, when the operation control means determines that the combustion section is in the non-combustion state or the incomplete combustion state, the combustion process is stopped. In this case, until the operation control means stops the combustion process, the fuel gas for heating continues to the combustion portion even though the combustion portion is in the non-combustion state or incomplete combustion state. Although the supplied state continues, an exhaust fan that exhausts the combustion exhaust gas from the combustion section to the outside is provided, so that the operation of the exhaust fan keeps the combustion section in the non-combustion state or incomplete combustion state. Even if the heating fuel gas is supplied to the combustion section, the heating fuel gas or carbon monoxide gas generated by incomplete combustion is discharged to the outside in a state diluted with air ventilated by an exhaust fan. The ones that can Rukoto.

  Moreover, it is detected by the exhaust fan operating state detection means whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists, and the operation control means performs the combustion process after the operation start command is commanded. When the exhaust fan is scheduled to be in the operating state until the start of the operation, if the exhaust fan operating state detecting means detects that the exhaust fan is not in the operating state, the combustion processing is not started. Therefore, for example, when the exhaust fan operating state detecting means detects that the exhaust fan drive circuit is out of operation due to an abnormality such as a failure of the exhaust fan drive circuit, the operation is not performed even if the operation start command is commanded. Since the control means does not execute the combustion process, it can be avoided that the heating fuel gas is supplied to the combustion section when the exhaust fan is not operating.

In other words, if the exhaust fan starts operating when the operation start command is commanded, the operation control means performs an operation to operate the exhaust fan when the operation start command is commanded. If it is detected by the exhaust fan operating state detection means that the engine is not in an operating state before the combustion process is started, the combustion process is not started. In other words, this case corresponds to a case where the operation state after the operation of operating the exhaust fan in accordance with the operation start command is scheduled to be in the operation state.
If the exhaust fan is always operating, the operation control means detects that the exhaust fan operating state detection means is not in an operating state after the operation start command is issued until the combustion process is started. If so, the combustion process is not started. That is, this case corresponds to a case where the operation state is scheduled after the operation start command is issued.

  Therefore, according to the second feature configuration, even when the combustion detection sensor is not provided in the combustion section, it is possible to prevent the heating fuel gas and the carbon monoxide gas from being discharged outside in a high concentration. A hydrogen-containing gas generator capable of achieving the above has been provided.

A third characteristic configuration of the present invention is a reforming processing unit that generates a reformed gas containing hydrogen gas by reforming a mixed gas containing a raw fuel gas containing hydrocarbon and steam.
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. A hydrogen-containing gas generator configured to control, comprising:
The operation control means is
If the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. If the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition after the reforming process is started, the combustion process and the reforming process are stopped. Configured to
An exhaust fan that starts operating as the operation start command is commanded or constantly operates and exhausts the combustion exhaust gas from the combustion section to the outside;
Exhaust fan operating state detecting means for detecting whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists is provided,
The operation control means is
When the exhaust fan operating state detecting means detects that the engine is not in an operating state between the start of the combustion process and the start of the reforming process, the combustion process is stopped and the reforming is performed. After the processing is started, the combustion processing and the reforming processing are stopped when the exhaust fan operating state detecting means detects that the operating state is not in operation.

  According to the third characteristic configuration, the temperature detected by the reforming temperature detecting means satisfies the initial combustion confirmation condition between the time when the operation control means starts the combustion process and the time when the reforming process is started. If not, after the combustion process is stopped and the reforming process is started, the combustion process and the reforming are performed when the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition. Since the process is configured to be stopped, the operation control means continues the combustion process while the combustion part remains in the non-combustion state or the incomplete combustion state, similarly to the effect described for the first characteristic configuration. It is possible to avoid the situation where the fuel gas for heating is supplied to the combustion section. Since the initial combustion confirmation condition, the reforming combustion confirmation condition, and the processing contents of the operation control means based on the conditions are the same as those in the first characteristic configuration, detailed description thereof is omitted here.

  Further, according to the third feature configuration, similarly to the operation and effect described for the first feature configuration, when the operation control means determines that the combustion section is in the non-combustion state or the incomplete combustion state, the combustion process is stopped. In this case, until the operation control means stops the combustion process, the fuel gas for heating continues to the combustion portion even though the combustion portion is in the non-combustion state or incomplete combustion state. Although the supplied state continues, an exhaust fan that exhausts the combustion exhaust gas from the combustion section to the outside is provided, so that the operation of the exhaust fan keeps the combustion section in the non-combustion state or incomplete combustion state. Even if the heating fuel gas is supplied to the combustion section, the heating fuel gas or carbon monoxide gas generated by incomplete combustion is discharged to the outside in a state diluted with air ventilated by an exhaust fan. The ones that can Rukoto.

  In addition, when the operation control means detects that the exhaust fan operating state detection means is not in the operating state between the start of the combustion process and the start of the reforming process, the combustion process is stopped, and After the reforming process is started, the combustion process and the reforming process are stopped when it is detected by the exhaust fan operating state detecting means that the engine is not operating. In other words, the exhaust fan operating state detecting means is detected due to an abnormality such as a failure of the drive circuit of the exhaust fan after the combustion process is started until the reforming process is started or after the reforming process is started. If it is detected that the engine is not in an operating state, the combustion process and the reforming process are stopped by stopping the combustion process and the reforming process. Supply of the heating fuel gas can be avoided.

  Incidentally, when it is detected that the exhaust fan operating state detecting means is not in the operating state at the same time when the combustion process is started, there is a possibility that the heating fuel gas is temporarily supplied to the combustion part, Thereafter, the combustion process is immediately stopped, so there is no problem because the amount of the heating fuel gas supplied to the combustion section is very small.

  Therefore, according to the third feature configuration, even when the combustion detection sensor is not provided in the combustion section, it is possible to avoid the heating fuel gas and the carbon monoxide gas from being discharged outside with a high concentration. A hydrogen-containing gas generator can be provided.

A fourth characteristic configuration of the present invention is a reforming processing unit that generates a reformed gas containing hydrogen gas by reforming a mixed gas containing a raw fuel gas containing hydrocarbons and steam.
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. A hydrogen-containing gas generator configured to control, comprising:
The operation control means is
If the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. If the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition after the reforming process is started, the combustion process and the reforming process are stopped. Configured to
An exhaust fan that starts operating as the operation start command is commanded or constantly operates and exhausts the combustion exhaust gas from the combustion section to the outside;
Exhaust fan operating state detecting means for detecting whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists is provided,
The operation control means is
When the exhaust fan is scheduled to be in the operating state between the time when the operation start command is issued and the time when the combustion process is started, the exhaust fan operating state detecting means is not in the operating state. Is detected, the combustion process is not started, and
If it is detected by the exhaust fan operating state detection means that the engine is not in an operating state between the start of the combustion process and the start of the reforming process, the combustion process is stopped and the modified After the start of the quality treatment, the combustion processing and the reforming processing are stopped when the exhaust fan operating state detecting means detects that the engine is not in an operating state.

  According to the fourth characteristic configuration, the temperature detected by the reforming temperature detecting means satisfies the initial combustion confirmation condition between the time when the operation control means starts the combustion process and the time when the reforming process is started. If not, after the combustion process is stopped and the reforming process is started, the combustion process and the reforming are performed when the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition. Since the process is configured to be stopped, the operation control means continues the combustion process while the combustion part remains in the non-combustion state or the incomplete combustion state, similarly to the effect described for the first characteristic configuration. It is possible to avoid the situation in which the heating fuel gas, which is a combustible gas, is supplied to the combustion section. Since the initial combustion confirmation condition, the reforming combustion confirmation condition, and the processing contents of the operation control means based on the conditions are the same as those in the first characteristic configuration, detailed description thereof is omitted here.

  Further, according to the fourth feature configuration, similarly to the effect described for the first feature configuration, when the operation control means determines that the combustion section is in the non-combustion state or the incomplete combustion state, the combustion process is stopped. In this case, until the operation control means stops the combustion process, the fuel gas for heating continues to the combustion portion even though the combustion portion is in the non-combustion state or incomplete combustion state. Although the supplied state continues, an exhaust fan that exhausts the combustion exhaust gas from the combustion section to the outside is provided, so that the operation of the exhaust fan keeps the combustion section in the non-combustion state or incomplete combustion state. Even if the heating fuel gas is supplied to the combustion section, the heating fuel gas or carbon monoxide gas generated by incomplete combustion is discharged to the outside in a state diluted with air ventilated by an exhaust fan. The ones that can Rukoto.

  Moreover, it is detected by the exhaust fan operating state detection means whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists, and the operation control means performs the combustion process after the operation start command is commanded. When the exhaust fan is scheduled to be in the operating state until the start of the operation, if the exhaust fan operating state detecting means detects that the exhaust fan is not in the operating state, the combustion processing is not started. Therefore, for example, when the exhaust fan operating state detecting means detects that the exhaust fan drive circuit is out of operation due to an abnormality such as a failure of the exhaust fan drive circuit, the operation is not performed even if the operation start command is commanded. Since the control means does not execute the combustion process, it can be avoided that the heating fuel gas is supplied to the combustion section when the exhaust fan is not operating.

In other words, if the exhaust fan starts operating when the operation start command is commanded, the operation control means performs an operation to operate the exhaust fan when the operation start command is commanded. If it is detected by the exhaust fan operating state detection means that the engine is not in an operating state before the combustion process is started, the combustion process is not started. In other words, this case corresponds to a case where the operation state after the operation of operating the exhaust fan in accordance with the operation start command is scheduled to be in the operation state.
If the exhaust fan is always operating, the operation control means detects that the exhaust fan operating state detection means is not in an operating state after the operation start command is issued until the combustion process is started. If so, the combustion process is not started. That is, this case corresponds to a case where the operation state is scheduled after the operation start command is issued.

  Further, according to the fourth feature configuration, when the operation control means detects that the exhaust fan operating state detection means is not in the operating state between the start of the combustion process and the start of the reforming process. After the combustion process is stopped and the reforming process is started, the combustion process and the reforming process are stopped when the exhaust fan operating state detecting means detects that the engine is not in the operating state. Exhaust fan operating state detection means due to an abnormality such as failure of the exhaust fan drive circuit after the combustion process is started until the reforming process is started or after the reforming process is started When it is detected that the engine is not in operation, the combustion process and the reforming process are stopped by stopping the combustion process and the reforming process, so that the exhaust fan is not operating. In heating the fuel gas in the combustion portion can be prevented from being supplied.

  Incidentally, when it is detected that the exhaust fan operating state detecting means is not in the operating state at the same time when the combustion process is started, there is a possibility that the heating fuel gas is temporarily supplied to the combustion part, Thereafter, the combustion process is immediately stopped, so there is no problem because the amount of the heating fuel gas supplied to the combustion section is very small.

  In short, according to the fourth feature configuration, when the operation start command is instructed and before the combustion process is started and when the exhaust fan is scheduled to be in operation, the modification is made after the combustion process is started. The combustion process and the reforming process are stopped if the exhaust fan operating state detecting means detects that the engine is not in the operating state until the quality process is started and after the reforming process is started. Even if the exhaust fan becomes in an abnormal state at any time, it is possible to prevent the heating fuel gas from being supplied to the combustion section while the exhaust fan is not operating.

  Therefore, according to the fourth feature configuration, even when the combustion detection sensor is not provided in the combustion section, it is possible to avoid discharging the heating fuel gas and the carbon monoxide gas to the outside with a high concentration. A hydrogen-containing gas generator can be provided.

  According to a fifth feature configuration of the present invention, in addition to any one of the first feature configuration to the fourth feature configuration, when the operation control unit is detected by the exhaust fan operating state detection unit to be out of operation, The raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means are configured to include a forcible operation circuit for forcibly operating the raw fuel gas supply intermittent means to the cutoff state.

  That is, a forcible operation circuit for forcibly operating the raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means to the cutoff state when the operation control means detects that the exhaust fan operating state detection means is not in the operating state. Therefore, for example, there is less risk of malfunction as compared with a configuration configured using a microcomputer that executes processing according to a control program, and the raw fuel gas supply intermittent means is reliably provided when the exhaust fan is not in operation. In addition, by switching the heating fuel gas supply intermittent means to the cutoff state, it becomes possible to accurately stop the supply of the heating fuel gas to the combustion section and the supply of the raw fuel gas to the reforming section.

  Therefore, according to the fifth characteristic configuration, when the exhaust fan operating state detecting means detects that it is not in the operating state, the raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means are accurately switched to the cutoff state. It has become possible to provide a hydrogen-containing gas generation device that enables the above.

According to a sixth characteristic configuration of the present invention, in addition to the fifth characteristic configuration, the exhaust fan operating state detection unit detects and acts on a rotating member that rotates integrally with the exhaust fan, and corresponds to the rotation speed of the rotating member. Comprising a detection unit that outputs an electrical signal, and a comparison unit that compares the electrical signal of the detection unit with a reference value for determination, and outputs an operating state signal and a non-operating state signal,
The forcible operation circuit is configured to forcibly operate the raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means to a cutoff state when a non-operation state signal is output from the comparison unit. It is in.

That is, the exhaust fan operating state detecting means detects the rotating member integrally rotating with the exhaust fan and outputs an electric signal corresponding to the rotational speed of the rotating member. The operation signal and the non-operating state signal are output by comparing the electric signal of 1 and the discrimination reference value.
The forcible operation circuit forcibly operates the raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means to the cutoff state when the non-operating state signal is output from the comparison unit in the exhaust fan operating state detection means. Become.

  Thus, the exhaust fan operating state detecting means detects the rotating member that rotates integrally with the exhaust fan, outputs an electrical signal corresponding to the rotational speed of the rotating member, and outputs the electrical signal and the determination reference value. Therefore, the operating state signal and the non-operating state signal are output as signals corresponding to whether or not the exhaust fan is in the operating state, and the exhaust fan rotates to exhaust the combustion exhaust gas to the outside. By detecting whether or not the exhaust fan is operating, it is possible to accurately detect whether or not the exhaust fan is in operation.

  Therefore, according to the sixth feature, whether or not the exhaust fan is in an operating state is accurately detected, and when the exhaust fan is not in an operating state based on the detection result, the raw fuel gas supply intermittent means and the heating fuel gas A hydrogen-containing gas generating device that can accurately operate the supply interrupting means to be shut off can be provided.

In addition to the sixth feature configuration, the seventh feature configuration of the present invention includes:
The raw fuel gas supply intermittent means intermittently interrupts the supply of the original fuel gas and the supply of the original fuel gas through the original fuel valve to the reforming unit as the raw fuel gas. And consists of a raw fuel valve that
The heating fuel gas supply intermittent means comprises the original fuel valve and a combustion fuel valve for intermittently supplying the original fuel gas supplied through the original fuel valve as the heating fuel gas to the combustion section. And
The forcible operation circuit is configured to forcibly operate the original fuel valve in a shut-off state.

  That is, switching the raw fuel gas supply intermittent means to the cutoff state can be handled by switching either the original fuel valve or the raw fuel valve to the cutoff state, while the heating fuel gas supply intermittent means is cut off. In order to switch to, one of the original fuel valve and the combustion fuel valve can be switched to the shut-off state. That is, when the original fuel valve is switched to the cutoff state, each of the raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means can be switched to the cutoff state all at once.

  Therefore, according to the seventh characteristic configuration, by switching the original fuel valve to the cut-off state, each of the raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means can be switched to the cut-off state all at once. Compared to switching between the gas supply intermittent means and the heating fuel gas supply intermittent means, it has become possible to provide a hydrogen-containing gas generator capable of simplifying the configuration of the forced operation circuit. .

In addition to any of the first to seventh feature configurations, the eighth feature configuration of the present invention houses the entire apparatus and has a casing formed with an inlet and an exhaust port, and ventilates the inside of the casing. A ventilation fan, and a ventilation fan operating state detection means for detecting whether the ventilation fan is rotating or in an operating state in which ventilation by the ventilation fan exists, are provided,
The operation control means is
When the ventilation fan operating state detecting means detects that the ventilation fan is not in the operating state, an abnormality countermeasure process is executed.

  That is, the entire apparatus is housed in a casing, and the inside of the casing is ventilated by a ventilation fan. For example, there is a case where the ventilation fan fails due to an abnormality such as a failure of the exhaust fan drive circuit or the ventilation fan is not in operation even though the operation control means malfunctions and should be ventilated. Conceivable.

  Therefore, in the eighth characteristic configuration, the ventilation fan operating state detecting means detects whether the ventilation fan is rotating or is in an operating state in which ventilation is provided by the ventilation fan, and the operation control means is configured to operate the ventilation fan. When it is detected by the state detection means that the ventilation fan is not in an operating state, abnormality countermeasure processing is executed.

  The ventilation fan not only cools the heat generating part in the casing, but also prevents hydrogen-containing gas, raw fuel gas, combustion exhaust gas, etc. from leaking inside the casing. Have a role. For this reason, as the abnormality countermeasure processing, for example, the raw fuel gas supply intermittent means is switched to the cutoff state, the supply of the raw fuel gas to the reforming processing unit is shut off, and the heating fuel gas supply intermittent means is set to the cutoff state. For example, the supply of the heating fuel gas to the combustion section may be shut off by switching.

  Therefore, according to the eighth characteristic configuration, when the ventilation fan is not in an operating state, for example, the countermeasure for the abnormal state can be taken by executing the abnormality countermeasure processing such as stopping the supply of the raw fuel gas or the heating fuel gas. A hydrogen-containing gas generating device that can be taken quickly can be provided.

  According to a ninth characteristic configuration of the present invention, in addition to the eighth characteristic configuration, the ventilation fan operating state detection unit detects and acts on a rotating member that rotates integrally with the ventilation fan, and corresponds to the rotation speed of the rotating member. The detection unit is configured to output an electrical signal, and a comparison unit that compares the electrical signal of the detection unit with a reference value for determination and outputs an operating state signal and a non-operating state signal.

  That is, in the ventilation fan operating state detection means, the detection unit detects and acts on a rotating member that rotates integrally with the ventilation fan, and outputs an electrical signal corresponding to the rotation speed of the rotating member. The electric signal and the reference value for discrimination are compared, and an operating state signal and a non-operating state signal are output.

  In this way, the ventilation fan operating state detection means detects and acts on the rotating member that rotates integrally with the ventilation fan, and outputs an electrical signal corresponding to the rotational speed of the rotating member. Are compared to output an operating state signal and a non-operating state signal as signals corresponding to whether the ventilation fan is in an operating state, and whether the ventilation fan is rotating to ventilate the inside of the casing. It is possible to accurately detect whether or not the ventilation fan is in an operating state.

  Therefore, according to the ninth feature configuration, it is possible to accurately detect whether or not the ventilation fan is in an operating state, and when the ventilation fan is not in an operating state based on the detection result, it is possible to accurately execute an abnormality countermeasure process. As a result, a hydrogen-containing gas generating device can be provided.

In addition to any of the first to ninth feature configurations, the tenth feature configuration of the present invention includes:
A combustion chamber forming a combustion space in the combustion section is a flat rectangular parallelepiped that is thin in the thickness direction of the heat transfer plate on one side of the heat transfer plate that transfers heat of the combustion section to the reforming processing section. Provided in the state formed,
In a state in which the reforming chamber forming the reforming space in the reforming unit is formed in a thin rectangular parallelepiped shape on the other side of the heat transfer plate in the thickness direction of the heat transfer plate. It is in the point provided.

  That is, the combustion chamber that forms the combustion space in the combustion section is provided in a state of being formed in a flattened rectangular parallelepiped shape that is thin in the thickness direction of the heat transfer plate, and the reforming chamber that forms the space for the reforming process is provided. Since the heat transfer plate is provided on the other side of the heat transfer plate in a state of being formed in a thin rectangular parallelepiped shape in the thickness direction of the heat transfer plate, the heat generated in the combustion chamber passes through the heat transfer plate. However, since one side of each of the large areas of the combustion chamber and the reforming chamber formed in a flat rectangular parallelepiped shape is in contact with the heat transfer plate, the heat transfer area is increased. Thermal efficiency is high. Moreover, each of the combustion chamber and the reforming chamber has a small size in the thickness direction of the heat transfer plate, and can be configured in a compact shape as a whole.

  Therefore, according to the tenth characteristic configuration, the combustion part and the reforming part can be accommodated in a compact shape while the heat of the combustion part can be heated with high heat transfer efficiency. It came to be able to provide the hydrogen-containing gas production | generation apparatus which became possible.

It is a schematic block diagram of a fuel gas production | generation means. It is a vertical side view of a fuel gas production | generation means. It is a perspective view of a modification process part. It is a vertical side view of a modification | reformation process part. It is a block diagram which shows the arrangement | positioning state inside a casing. It is a figure which shows the structure of a forced operation circuit. It is an operation | movement time chart by an operation control means. It is a flowchart of control operation. It is a block diagram which shows the structure of a forced operation circuit.

[First Embodiment]
Hereinafter, the case where the first embodiment of the hydrogen-containing gas generation device according to the present invention is applied to a hydrogen-containing gas generation device that generates a fuel gas to be supplied to a fuel cell as a hydrogen-containing gas will be described with reference to the drawings. .

The hydrogen-containing gas generation device is configured to include a fuel gas generation means P that generates the fuel gas and an operation control means C that controls the operation. The fuel gas generation means P is configured as follows. Has been.
That is, as shown in FIGS. 1 and 2, the fuel gas generating means P includes a desulfurization processing unit 1 for desulfurizing a hydrocarbon-based raw fuel gas such as a natural gas-based city gas to be supplied, and a raw fuel gas. A reforming process unit 3 for reforming the fuel, a combustion unit 4 for heating the reforming process unit 3 by burning the raw fuel gas and the exhaust fuel gas discharged from the fuel cell G, and generating steam for the reforming process From the steam generation section S as the steam generation means, the modification processing section 5 for processing so as to reduce the carbon monoxide gas contained in the reformed gas reformed by the reforming processing section 3, from the modification processing section 5 A selective oxidation treatment unit 6 or the like for removing carbon monoxide remaining in the exhausted conversion treatment gas is provided so as to generate a hydrogen-rich fuel gas having a low carbon monoxide gas concentration (for example, 10 ppm or less). It is configured.

  The steam generation section S includes a steam generation heating flow section 11 through which the combustion exhaust gas discharged from the combustion section 4 flows, a pump 20 that supplies raw water through the raw water supply path 25, and raw water supplied. And an evaporation processing unit 2 for evaporating the water by heating by the steam generation heating flow-through unit 11.

  The reforming processing unit 3 is filled with a large number of porous ceramic particles holding a reforming catalyst such as ruthenium, nickel, platinum, etc. in a state where it can be ventilated, and a gas to be reformed (desulfurization processing) The raw fuel gas is reformed by flowing the mixed raw fuel gas and water vapor).

  The combustion section 4 is provided with a heating burner 44 so that the raw fuel gas and the exhaust fuel gas supplied to the burner 44 are combusted to generate combustion heat for reforming the raw fuel gas. It is configured. In other words, the combustion unit 4 is configured to combust the heating fuel gas with the burner 44 in a state of forming a flame, and to the flame combustion unit 4F, the flame combustion unit 4F. The catalyst combustion unit 4C is disposed on the lower side of the 4F flame formation direction and combusts the exhaust fuel gas that has not been burned in the flamed combustion unit 4F by the combustion catalyst 4c.

  The fuel gas generating means P is supplied with a high temperature reformed gas discharged from the reforming processing unit 3 to keep the reforming processing unit 3 warm, and a high temperature reforming unit 7. The reformed gas heat exchanger Ep for heating the reformed gas supplied to the reforming processing unit 3 by the quality gas, and the raw fuel gas supplied to the desulfurization processing unit 1 by the high temperature reformed gas The raw fuel gas heat exchanger Ea, the transformation part cooling flow part 8 for allowing the cooling fluid to flow in order to cool the transformation part 5, and the cooling fluid for cooling the transformation part 5 A shift section cooling flow section 9 through which the flow passes and a cooling fan 10 that cools the shift processing section 5 and the selective oxidation processing section 6 are provided.

The to-be-reformed gas heat exchanger Ep includes an upstream reformed gas flow section 12 through which the reformed gas discharged from the heat retaining flow section 7 flows and a reformed gas to be supplied to the reforming processing section 3. Heat exchange is performed with the reformed gas flow section 13 through which the quality gas flows.
The raw fuel gas heat exchanger Ea is supplied to the downstream reformed gas flow section 15 through which the reformed gas discharged from the upstream reformed gas flow section 12 flows and to the desulfurization processing section 1. Heat is exchanged with the raw fuel gas flow passage 16 through which the fuel gas flows.

  1 and 2, a gas supply path 21 is connected to the raw fuel gas flow passage 16 of the raw fuel gas heat exchanger Ea as indicated by a white line arrow, and the raw fuel gas flow portion. 16, Desulfurization processing section 1, reformed gas flow section 13 of reformed gas heat exchanger Ep, reforming process section 3, heat retaining flow section 7, upstream of reformed gas heat exchanger Ep A gas treatment path that flows in the order of the side reformed gas flow section 12, the downstream reformed gas flow section 15 of the raw fuel gas heat exchanger Ea, each of the shift treatment sections 5, and the selective oxidation treatment section 6 is formed. These are connected by a gas processing flow path 22.

  The raw fuel gas supplied from the gas supply path 21 is desulfurized in the desulfurization processing unit 1, the desulfurized raw fuel gas and the water vapor from the water vapor path 26 are mixed, and supplied to the reforming processing unit 3. The reforming process is performed, the reformed gas is sequentially supplied to the four-stage shift processing unit 5, the carbon monoxide gas is converted to carbon dioxide gas, and the shift process gas is supplied to the selective oxidation processing unit 6. The carbon monoxide gas is selectively oxidized.

The selective oxidation treatment gas discharged from the selective oxidation treatment unit 6 is supplied to the fuel cell G through the fuel gas passage 23 as the fuel gas, and the exhaust fuel gas (exhaust gas) discharged from the fuel cell G is discharged to the exhaust fuel gas passage. The fuel gas for heating is supplied to the burner 44 through 24.
Further, the temperature of the selective oxidation treatment gas discharged from the selective oxidation treatment unit 6 is about 110 ° C., and the operating temperature of the polymer fuel cell G is about 80 ° C. A fuel gas cooling heat exchanger 33 that cools the selective oxidation treatment gas discharged from the oxidation treatment unit 6 to near the operating temperature of the fuel cell G is provided.

  The fuel gas passage 23 is provided with a fuel gas supply valve V2 that can be switched between a state in which the selective oxidation treatment gas (fuel gas) is supplied to the fuel cell G and a supply stop state in which the supply is stopped. 23, an exhaust passage 51 having an opening at the other end side outward is branched from a portion on the gas flow direction higher than the fuel gas supply valve V2, and a pressure relief valve V3 is connected to the exhaust passage 51. Is provided. Further, a pressure sensor 52 for detecting the internal pressure is provided at a location on the upper side of the fuel gas passage 23 with respect to the gas flow direction.

  In the reforming processing unit 3, when the natural gas mainly composed of methane gas is the raw fuel gas, the reforming reaction of methane gas and water vapor is performed by the following reaction formula under heating at about 700 to 750 ° C., for example. Then, the reforming process is performed to a gas containing hydrogen gas and carbon monoxide gas.

[Chemical formula 1]
CH ₄ + H ₂ O → CO + 3H ₂

  In the shift treatment unit 5, the carbon monoxide gas and water vapor in the reformed gas undergo a shift reaction according to the following reaction formula at a reaction temperature of about 200 ° C., for example, and the carbon monoxide gas is carbon dioxide gas. Transformed into

[Chemical 2]
CO + H ₂ O → CO ₂ + H ₂

  In the selective oxidation treatment unit 6, the carbon monoxide gas remaining in the shift treatment gas is selectively oxidized at a reaction temperature of about 100 ° C. by the catalytic action of ruthenium.

A raw water preheating heat exchanger that preheats raw water flowing through the raw water supply passage 25 with the conversion gas in the gas processing flow path 22 that connects the last-stage shift treatment section 5 and the selective oxidation treatment section 6. 17 is provided.
A drain trap 34 for removing condensed water from the shift gas is provided at a location downstream of the raw water preheat heat exchanger 17 and preheats the raw water by heat exchange between the shift gas and the raw water. At the same time, the modification gas is cooled.

  Since the temperature of the shift gas discharged from the shift treatment section 5 is about 200 ° C., and the reaction temperature in the selective oxidation treatment section 6 is about 100 ° C., in the heat exchanger 17 for raw water preheating, the shift treatment is performed. The gas is cooled to a temperature close to the reaction temperature in the selective oxidation treatment unit 6, and the amount of heat recovered by the cooling is used for preheating the raw water.

  In FIG. 1 and FIG. 2, a raw water supply path 25 for supplying raw water for steam generation is connected to the evaporation processing chamber 2 of the steam generation section S and generated in the evaporation processing chamber 2 as indicated by solid arrows. The steam passage 26 for delivering the steam is connected to a gas processing flow path 22 that connects the desulfurization processing section 1 and the reformed gas flow section 13 and desulfurization flows through the gas processing flow path 22. The reforming steam is mixed with the raw fuel gas.

A raw material water preheating heat exchanger 17 is provided in the middle of the raw material water supply path 25, and the raw water is meandered at a location downstream of the raw material water preheating heat exchanger 17 in the raw water supply path 25. A meandering flow portion 18 is provided to flow through the flow path.
The meandering flow portion 18 is provided so as to be able to conduct heat to a portion of the outer wall portion of the fuel gas generation means P that covers the combustion portion 4 so as to be able to conduct heat, and heat conduction from the outer wall portion of the fuel gas generation means P and The raw water flowing through the meandering flow passage 18 is preheated by radiant heat.
And the raw material water supplied to the water vapor | steam production | generation part S is preheated with the heat exchanger 17 for raw material water preheating, and the meandering flow part 18. FIG.

In FIG. 1 and FIG. 2, as shown by the broken line arrows, the flue gas discharged from the combustion unit 4 is flowed in the order of the steam generating heating flow part 11 and the metamorphic part cooling flow part 8. The combustion section 4, the steam generation heating flow section 11, and the shift section cooling flow section 8 are connected by a combustion exhaust gas passage 27.
In the steam generation heating flow-through portion 11, the evaporation treatment chamber 2 is heated by the combustion exhaust gas, and in the shift-flow cooling flow portion 8, a shift treatment in which a shift reaction that is an exothermic reaction is performed by the combustion exhaust gas. The unit 5 is configured to be cooled.

  Incidentally, the temperature of the combustion exhaust gas discharged from the steam generation heating flow-through portion 11 is about 120 ° C., and the combustion exhaust gas flows through the shift portion cooling flow-through portion 8 to cool the shift treatment portion 5. Since the temperature of the combustion exhaust gas discharged from the metamorphic part cooling flow section 8 has risen to about 150 ° C., an exhaust heat recovery heat exchanger (not shown) is provided to recover the exhaust heat from the combustion exhaust gas, And produce hot water.

1 and 2, the air from the combustion blower 28 is supplied as the combustion air to the burner 44 after flowing through the metamorphic portion cooling flow-through portion 9 as indicated by a one-dot chain line arrow. The combustion blower 28 and the metamorphic portion cooling flow passage 9 are connected by a combustion air passage 29. A combustion air bypass path 30 is connected to the combustion air path 29 so that the combustion air is bypassed through the transformation section cooling flow section 9.
Further, an oxidizing air supply path 31 connected to the combustion blower 28 is connected to the last-stage modification processing unit 5 and the selective oxidation so that air from the combustion blower 28 is supplied to the selective oxidation processing unit 6 as oxidizing air. The gas processing flow path 22 is connected to the processing unit 6.

Combustion air is supplied to the burner 44 through the metamorphic part cooling flow passage 9 and supplied through the combustion air bypass passage 30 while bypassing the metamorphic part cooling flow section 9. On-off valves 35 and 36 are provided for switching to the state to be performed.
Incidentally, normally, the on-off valves 35 and 36 are switched so that the combustion air flows through the combustion air bypass passage 30, but when the cooling capacity of the shift treatment section 5 is insufficient, for example, in summer When the air temperature is high, the on-off valves 35 and 36 are switched so that the combustion air flows through the metamorphic portion cooling flow passage 9, and the metamorphosis processing portion 5 is cooled by the combustion air.

  As shown in FIG. 2, the fuel gas generation means P includes a plurality of rectangular plate-like flat containers B arranged side by side in the thickness direction of the plate-like shape. A flow part, a combustion part 4 and the like are configured. The plurality of containers B are in a state in which those that need to transfer heat are in close contact with each other, and the heat transfer amount adjusting heat insulating material 19 is interposed between those that need to adjust the amount of heat transfer. They are arranged side by side.

  Among the containers B, the reforming section container Bk for forming the reforming processing section 3 is a combustion of the combustion section 4 provided on one side of the heat transfer plate 43 as shown in FIGS. The chamber 50 is formed in a flat rectangular parallelepiped shape that is thin in the thickness direction of the heat transfer plate 43 by the dish-shaped container forming member 41 located on one side of the heat transfer plate 43, and is formed on the other side of the heat transfer plate 43. The reforming chamber 49 of the reforming unit 3 provided is formed in a flat rectangular parallelepiped shape that is thin in the thickness direction of the heat transfer plate 43 by the dish-shaped container forming member 41 located on the other side of the heat transfer plate 43. Has been.

  The reforming processing unit 3 is filled with a large number of ceramic porous granular materials holding a reforming catalyst in the reforming chamber 49 so as to be ventilated. The raw fuel gas is reformed with steam to be reformed into a reformed gas mainly composed of hydrogen gas. A reforming temperature sensor 38 is provided as reforming temperature detecting means for detecting the reforming temperature Tr in the reforming processing unit 3.

As shown in FIG. 1, the gas supply path 21 is provided with a main fuel valve V <b> 1 that intermittently supplies the main fuel gas supplied through the gas supply path 21. On the upper side of the gas flow direction of the desulfurization unit 1 in the gas processing channel 22 connected to the gas supply channel 21, the original fuel gas supplied through the original fuel valve V1 is supplied to the reforming processing unit 3 as the raw fuel gas. A process gas valve V4 is provided as a raw fuel valve that interrupts the operation. Further, a heating flow path 53 is branched from the process gas valve V4 in the gas processing flow path 22 from the upper side in the gas flow direction, and the original fuel gas supplied to the heating flow path 53 through the original fuel valve V1. Is provided with a burner gas valve V5 as a combustion fuel valve for intermittently supplying the fuel gas to the burner 44 as a heating fuel gas. The process gas valve V4 and the burner gas valve V5 are provided so that the gas flow rate can be changed and adjusted and can be switched to the fully closed state.
In FIG. 1, only one original fuel valve V1 is provided. However, in order to improve safety, a plurality of original fuel valves V1 are arranged in series to provide a plurality of original fuel valves V1. It is good also as a structure controlled to open and close the fuel valve V1 simultaneously.

  Therefore, the raw fuel gas supply intermittent means Vg that can be switched between the fuel supply state for supplying the raw fuel gas to the reforming unit 3 and the supply stop state for stopping the supply is provided by the original fuel valve V1 and the process gas valve V4. Composed. Further, the heating fuel gas supply intermittent means Vk which can be switched between the fuel supply state for supplying the heating fuel gas to the burner 44 and the supply stop state for stopping the supply is constituted by the original fuel valve V1 and the burner gas valve V5. The

  FIG. 5 shows an arrangement state of the fuel cell system including the fuel gas generating means P and the fuel cell G. In this fuel cell system, the entire apparatus including the fuel gas generating means P and the fuel cell G includes a casing 54. It is deployed in a state of being housed inside. The casing 54 is formed with a suction port 55 and an exhaust port 56, respectively, and a ventilation fan 57 that exhausts the air inside the casing 54 from the exhaust port 56 to the outside of the casing 54 is provided. The ventilation fan 57 is configured to ventilate the inside of the casing 54 by exhausting air inside the casing 54 and sucking outside air from the suction port 55.

  The fuel cell G includes, for example, a polymer type fuel cell, hydrogen in the fuel gas generated by the fuel gas generation means P and supplied through the fuel gas passage 23, and reaction air from the reaction blower 14. Electricity is generated by causing an electrochemical reaction with oxygen in the air supplied through the passage 32.

  In addition to the ventilation fan 57, an exhaust fan 58 for exhausting the combustion exhaust gas generated by the combustion of the heating fuel gas in the combustion section 4 is provided. The exhaust fan 58 is configured to suck the combustion exhaust gas in the combustion section 4 through the combustion exhaust gas passage 27 and exhaust the exhaust gas from the exhaust port 59 to the outside of the casing 54 when the exhaust fan 58 is rotated and activated.

In other words, as shown in FIG. 5, the exhaust fan 58 takes outside air from the intake portion 58a and exhausts it outside through the exhaust portion 58b. The outlet is faced, and the exhaust gas is sucked through the combustion exhaust gas passage 27 along with the ventilation operation by the exhaust fan 58 and exhausted from the exhaust port 59 to the outside of the casing 54. By comprising in this way, combustion exhaust gas is discharged | emitted outside in the state diluted with the air inhaled from the intake part 58a through the combustion exhaust gas path 27. FIG.
In FIG. 5, a propeller fan is used as the exhaust fan 58, but another type of fan such as a sirocco fan may be used.

The operation control means C includes a control device 60 composed of a microcomputer as a main part, and when the operation start command is instructed, the control device 60 starts the operation of the exhaust fan 58. After the fan operation process is executed, the combustion process and the reforming process are executed.
That is, when the operation start command is instructed, the control device 60 executes an exhaust fan operation process for operating the exhaust fan 58, and thereafter executes a combustion process for operating the combustion unit 4 for combustion. When the temperature detected by the temperature sensor 38 satisfies the condition for starting the reforming process, the heating fuel gas supply intermittent means Vk, the combustion The blower 28, the raw fuel gas supply intermittent means Vg, and the water vapor generating means S are configured to be controlled.

  Also, when the temperature detected by the reforming temperature sensor 38 does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process. If the temperature detected by the reforming temperature sensor 38 does not satisfy the reforming combustion confirmation condition after the combustion process is stopped and the reforming process is started, the combustion is performed. The process and the reforming process are stopped.

Although a detailed configuration will be described later, as shown in FIG. 6, an exhaust fan 58 that starts operation in response to an operation start command and exhausts combustion exhaust gas from the combustion unit 4 to the outside. Exhaust fan operating state detecting means H1 for detecting whether or not the rotating operating state is present is provided. Although not shown, when the determination result of the exhaust fan operating state detecting means H1 is input to the control device 60, the control device 60 is scheduled to be in the operating state. When the exhaust fan operating state detecting means H1 detects that it is not in the operating state, the combustion processing and the reforming processing are not executed.
That is, when the exhaust fan 58 is scheduled to be in an operating state from when the operation start command is issued until the control device 60 starts the combustion process, the exhaust fan operating state detecting means H1 It is configured not to start the combustion process when it is detected that it is not in the operating state, and is operated by the exhaust fan operating state detection means H1 between the start of the combustion process and the start of the reforming process. When it is detected that the engine is not in the state, the combustion process is stopped, and after the reforming process is started, if the exhaust fan operating state detecting means H1 detects that the engine is not in the operating state, the combustion process and the reforming are performed. It is configured to stop processing.

  Note that the operation control means C is detected by the exhaust fan operating state detection means H1 in addition to the control device 60 as a main control unit that executes the combustion process, the reforming process, and the like. The raw fuel gas supply intermittent means Vg and the heating fuel gas supply intermittent means Vk are provided with a forcible operation circuit 61 for forcibly operating them in a cut-off state.

Next, the control operation of the control device 60 will be described with reference to FIG.
The control device 60 has a start timing for starting the operation of the fuel cell G. For example, an operation start command is issued by another control means such as a control device for the fuel cell that manages the operation of the fuel cell G or a manual operation tool. When commanded, exhaust fan operation processing for starting the operation of the exhaust fan 58 is executed. That is, the control device 60 instructs the fan drive circuit 58A for rotating the exhaust fan 58 to receive an operation start command for switching the fan operation control terminal to a high level and an operation stop command for switching the fan operation control terminal to a low level. When the operation by the exhaust fan 58 is started, an operation start command is issued to the fan drive circuit 58A.

  After the exhaust fan operation process for starting the operation of the exhaust fan 58 is executed, the combustion process is executed. That is, with the igniter 4i activated, the original fuel valve V1 is opened, the burner gas valve V5 is opened, the operation of the combustion blower 28 is started, and combustion air is supplied. Burning of the burner 44 is started. At this time, the opening degree of the burner gas valve V5 is adjusted so as to become the set raw fuel supply amount for starting.

  When the combustion of the burner 44 is started and the temperature of the reforming processing unit 3 rises and the reforming temperature detected by the reforming temperature sensor 38 reaches the set temperature for starting the steam purge, the operation of the pump 20 is started. Then, the supply of water vapor generated by the water vapor generator 2 is started, and the water vapor replacement control for replacing the raw fuel gas and the like filled in the fuel gas generating means P and the fuel cell G with water vapor as described later is performed. Execute. Subsequently, when the reforming temperature Tr detected by the reforming temperature sensor 38 reaches the raw fuel supply start set temperature Ts1 (for example, 650 ° C.), the original fuel valve V1 is already opened at that time. The process gas valve V4 is opened and the supply of the raw fuel gas to the reforming processing unit 3 is started. At this time, the opening degree of the process gas valve V4 is adjusted so as to become the set raw fuel supply amount for reforming. After the supply of the raw fuel gas is started, the fuel gas supply valve V2 is opened, and the supply of the fuel gas generated by the fuel gas generation means P to the fuel cell G is started.

  Further, after the process gas valve V4 is opened and the supply of the raw fuel gas to the reforming unit 3 is started, the burner gas valve V5 is closed. That is, when the exhaust fuel gas is discharged from the fuel cell G and the raw fuel gas can be reformed by the combustion heat of the exhaust fuel gas, the supply of the raw fuel gas to the burner 44 is stopped. Then, the entire amount of the exhaust fuel gas discharged from the fuel cell G is supplied to the burner 44 and combusted in the combustion unit 4, and the raw fuel gas is reformed in the reforming processing unit 3 by the combustion heat.

  The period from the start of combustion of the burner 44 until the reforming temperature Tr reaches the raw fuel supply start set temperature Ts1 corresponds to the start-up operation, and the reforming temperature Tr is equal to or higher than the raw fuel supply start set temperature Ts1. The power generation operation corresponds to the period after the temperature is raised to the high temperature and the operation stop is instructed.

  When the stop timing is reached to stop the operation of the fuel cell G, and an operation stop command is instructed by the other control means or the manual operation tool, the operation control means C controls the original fuel valve V1, the process gas valve V4, and The fuel gas supply valve V2 is closed to stop the reforming process in the reforming unit 3 and stop the power generation of the fuel cell G. At this time, the hydrogen-containing gas generating device including the reforming unit 3 A steam purge process is performed to replace the interior with steam.

  The steam purge process will be described. After the supply of the raw fuel gas to the reforming processing unit 3 is stopped, the supply of water to the steam generator 2 is continued and the generation of steam is continued. Further, a pressure relief process is performed in which the pressure relief valve V3 or the fuel gas supply valve V2 is opened only for a set time so that water vapor is supplied into the gas treatment channel 22. As a result, the gas in the apparatus remaining in the gas processing flow path 22 by the generated water vapor is discharged, and the hydrogen-containing gas generation apparatus including the reforming processing unit 3 is replaced with water vapor.

After that, when the reforming temperature Tr detected by the reforming temperature sensor 38 is lowered to the lower determination setting temperature Ts2, the original fuel valve V1 and the process gas valve V4 are opened to supply the raw fuel gas. Thus, a gas purge process for replacing the inside of the hydrogen-containing gas generating apparatus including the reforming processing unit 3 with the raw fuel gas is executed.
At this time, since both the fuel gas supply valve V2 and the pressure relief valve V3 are in the closed state, the internal pressure increases due to the supply of the raw fuel gas, and the detected pressure P of the pressure sensor 52 is the first set upper limit value. When the pressure becomes equal to or higher than the set pressure Ps1 (for example, 3 kPa or higher), the original fuel valve V1 and the process gas valve V4 are closed and the gas purge process is ended. The lowering determination set temperature Ts2 is set to a temperature (for example, 200 ° C.) that can prevent carbon deposition due to thermal decomposition.

  After that, when the detected pressure P of the pressure sensor 52 becomes equal to or lower than the second set pressure Ps2 (for example, 1 kPa or less) as the set lower limit value lower than the first set pressure Ps1, the original fuel valve V1 and the process gas valve V4. Is switched to the open state, and when the pressure becomes equal to or higher than the first set pressure Ps1, the original fuel valve V1 and the process gas valve V4 are switched to the closed state (shut off state), and the pressure in the apparatus is changed to the second set pressure Ps2 and the first set pressure. The in-apparatus pressure maintenance process maintained between Ps1 is executed.

As shown in FIG. 7, the control device 60 continues the exhaust operation even after the operation stop command is instructed, and opens the original fuel valve V1 and the process gas valve V4 as described above to open the raw fuel gas. When the detected pressure P of the pressure sensor 52 is equal to or higher than the first set pressure Ps1, the exhaust operation is performed when the set time X elapses after the gas purge process for closing the main fuel valve V1 and the process gas valve V4 is completed. The operation of the exhaust fan 58 is controlled so as to be stopped.
Further, as shown in FIG. 7, when the control device 60 is executing the in-device pressure maintaining process, the detected pressure P of the pressure sensor 52 is set slightly higher than the second set pressure Ps2. When the pressure falls below the third set pressure, the exhaust operation is started, and then, after maintaining the pressure, the main fuel valve V1 and the process gas valve V4 are switched to the open state and the raw fuel gas is supplied. The operation of the exhaust fan 58 is controlled so that the exhaust operation is stopped when the time X elapses. Thereafter, such control is repeatedly executed. Therefore, when the detected pressure P of the pressure sensor 52 becomes equal to or lower than the second set pressure Ps2 and the main fuel valve V1 and the process gas valve V4 are switched to the open state, the exhaust fan 58 is switched to the operating state.

  Specifically, the detected pressure P of the pressure sensor 52 is lowered to the third set pressure Ps3 or less to start the operation of the exhaust fan 58, and then the detected pressure P of the pressure sensor 52 is set to the second set pressure Ps2. In the following, the original fuel valve V1 and the process gas valve V4 are opened to supply the raw fuel gas, and then the detected pressure P of the pressure sensor 52 becomes equal to or higher than the first set pressure Ps1 and the original fuel valve V1 and the process are supplied. After the set time X has elapsed since the gas valve V4 was closed, the operation of the exhaust fan 58 is stopped.

Next, the non-combustion fuel supply stop process will be described with reference to FIG.
That is, when the operation start command is instructed, the start-up operation is being executed until the reforming temperature Tr reaches the raw fuel supply start setting temperature Ts1 after the combustion of the burner 44 is started, and the burner 44, when the heating fuel gas is being supplied (steps 1 and 2), the temperature increase rate of the reforming temperature Tr detected by the reforming temperature sensor 38 is larger than the set temperature increasing rate. (Step 3). Specifically, when the amount of increase in the reforming temperature Tr from the start of combustion of the burner 44 to the elapse of the set elapsed time (3 minutes) exceeds the set amount (45 degrees), It is determined that the temperature increase rate is greater than the set temperature increase rate. If the increase amount of the reforming temperature Tr is less than the set amount (45 degrees), it is determined that the temperature increase rate is smaller than the set temperature increase rate.

  If it is determined that the amount of increase in the reforming temperature Tr is less than the set amount (45 degrees) and the temperature increase rate is smaller than the set temperature increase rate, the burner 44 is not ignited or the burner 44 burns. However, in order to switch the original fuel valve V1 to the closed state, it is considered that it is an incomplete combustion state that is not properly combusted due to an insufficient amount of air necessary for combustion. A valve closing control signal is output as a valve control signal (step 4).

  When the power generation operation is being executed after the combustion of the burner 44 is started and the reforming temperature Tr becomes equal to or higher than the raw fuel supply starting set temperature Ts1, the reforming temperature detected by the reforming temperature sensor 38 is being performed. When the state where the temperature Tr is lower than the determination lower limit value Ts3 (for example, 600 ° C.) and is lower than the determination lower limit value Ts3 continues for the set standby time (2 minutes) or longer, the burner 44 is considered to be in a non-combustion state in which a misfire has occurred, or an incomplete combustion state as described above, and therefore a valve closing control signal is output as a valve control signal in order to switch the original fuel valve V1 to a valve closing state ( Steps 5, 6, 4).

  Therefore, the reforming temperature sensor 38 detects that the temperature increase rate of the reforming temperature Tr is smaller than the set temperature increasing rate between the start of the combustion process and the start of the reforming process. This corresponds to the case where the temperature does not satisfy the initial combustion confirmation condition. Then, after the reforming process is started, this corresponds to a case where the temperature detected by the reforming temperature sensor 38 does not satisfy the reforming combustion confirmation condition.

Next, the exhaust fan operating state detection means H1 and the forced operation circuit 61 will be described.
The exhaust fan operating state detecting means H1 detects a rotating shaft 63 as a rotating member that rotates integrally with the exhaust fan 58, and outputs an electric signal corresponding to the rotational speed of the rotating member 63; Comparing the electric signal of the detection unit 64 with the reference value for determination, the comparison unit 65 outputs an operating state signal and a non-operating state signal, and the forcible operation circuit 61 is not operated from the comparing unit 65. When the signal is output, the raw fuel gas supply intermittent means Vg and the heating fuel gas supply intermittent means Vk are forcibly operated to the cutoff state.

Hereinafter, a specific configuration will be described.
As shown in FIG. 6, the exhaust fan operating state detection means H1 detects and acts on the protrusion 66 formed integrally with the rotary shaft 63, which is a rotary member that rotates integrally with the exhaust fan 58, and corresponds to the rotational speed of the rotary member. A pulse generator 67 for outputting a pulse signal to be output, an F / V (frequency / voltage) converter 68 as a voltage conversion circuit for converting the frequency of the pulse signal of the pulse generator 67 into a voltage signal, and the F / V Compares the electrical signal (voltage signal) of the converter 68 with the reference voltage generated by the reference voltage generator 69 as a reference value for discrimination, and corresponds to the high level signal corresponding to the operating state signal and the non-operating state signal And a comparator 70 that outputs a low level signal. Therefore, the pulse generator 67 and the F / V converter 68 constitute the detection unit 64, and the reference voltage generator 69 and the comparator 70 constitute a comparison unit 65.

The forcible operation circuit 61 does not include a microcomputer unlike the control device 60, and as shown in FIG. 6, an AND circuit 71 to which the output of the comparator 70 and the valve control signal from the control device 60 are input respectively. When the output of the AND circuit 71 becomes a high level state, the switching transistor 72 becomes conductive, and when the output of the AND circuit 71 becomes a low level state, the switching transistor 72 becomes non-conductive, and the output of the AND circuit 71 drives the switching transistor 72. And a drive circuit 71A for this purpose.
When the switching transistor 72 becomes conductive, the solenoid for operating the valve body of the original fuel valve V1 is energized, and the valve body biased by the spring is opened to open the original fuel valve V1. When the switching transistor 72 is turned off, the valve body is returned to the closed state by the biasing force of the spring, and the original fuel valve V1 is closed.

Next, processing operations of the exhaust fan operating state detection means H1 and the forcible operation circuit 61 will be described.
When the exhaust fan 58 rotates to start the exhaust operation, the pulse generator 67 outputs a pulse signal, and the pulse signal becomes a voltage that becomes higher as the frequency of the pulse signal becomes higher in the F / V converter 68. Converted to a signal. By the way, in order to obtain the blown air amount necessary for diluting and exhausting the combustion exhaust gas from the burner 44, the exhaust fan 58 needs to be rotated at a set rotational speed or more. Therefore, a voltage corresponding to the set rotational speed is set in advance as a reference voltage, and the reference voltage is generated by the reference voltage generator 69. The output voltage of the F / V converter 68 is The reference voltage input to the non-inverting input terminal and generated by the reference voltage generating circuit 69 is input to the inverting input terminal of the comparator 70. The comparator 70 outputs a high level signal when the output voltage of the F / V converter 68 is higher than the reference voltage, and outputs a low level signal when the output voltage of the F / V converter 68 is lower than the reference voltage. To do.

  If both the output signal of the comparator 70 and the valve control signal from the control device 60 are high level signals, the output of the AND circuit 71 becomes high level, the switching transistor 72 becomes conductive, and the original fuel valve V1 opens. It becomes a state. On the other hand, if at least one of the output signal of the comparator 70 and the valve control signal from the control device 60 is a low level signal, the output of the AND circuit 71 is in a low level state, and the switching transistor 72 is in a non-conductive state. Thus, the original fuel valve V1 is cut off, that is, closed.

  Therefore, when the non-operating state signal (low level signal) is output from the comparator 70, the forcible operation circuit 61 sets the original fuel valve V1 in a shut-off state (closed state), whereby the raw fuel gas supply intermittent means Vg. In addition, the heating fuel gas supply intermittent means Vk is forcibly operated in the shut-off state.

  Then, the output signal of the comparator 70 (the high level signal corresponding to the operating state signal and the low level signal corresponding to the non-operating state signal), which is the determination result of the exhaust fan operating state detecting means H1, is also input to the control device 60. In response to the operation start command, the control device 60 executes the exhaust fan operation process, and after that, when the non-operating state signal is output from the comparator 70, the combustion process is performed. Configured not to start.

  When the non-operating state signal is output from the comparator 70 between the start of the combustion process and the start of the reforming process, the control device 60 stops the combustion process and performs the reforming process. After the start, when the non-operation state signal is output from the comparator 70, the combustion process and the reforming process are stopped.

  That is, the exhaust fan operating state detection means H1 may not be in an operating state after the control device 60 executes the exhaust fan operating process in response to the operation start command and before starting the combustion process. When detected, the control device 60 does not start the combustion process. Further, the exhaust fan operating state detecting means is detected due to an abnormality such as a failure of a drive circuit of the exhaust fan after the combustion process is started until the reforming process is started and after the reforming process is started. When it is detected in H1 that the engine is not operating, the control device 60 stops the combustion process and the reforming process.

  In this embodiment, after the operation for operating the exhaust fan 58 is performed in response to the operation start command, specifically, after the control device 60 executes the exhaust fan operation process, It will respond when it is scheduled.

  In this embodiment, a forcible operation circuit 61 is provided in addition to the control device 60. When the exhaust fan operating state detecting means H1 detects that the engine is not in an operating state, the forcible operation circuit 61 Since the raw fuel gas supply intermittent means Vg and the heating fuel gas supply intermittent means Vk are forcibly operated to the cutoff state by setting V1 to the cutoff state (valve closed state), the exhaust fan operating state detection means H1 Even if it is detected that the engine is not in operation, the control device 60 may output a valve control signal for opening the main fuel valve V1 due to a malfunction. Maintains the shut-off state (valve closed state).

  Therefore, even though it is detected that the exhaust fan operating state detecting means H1 is not in the operating state, an operation start command is issued, and the control device 60 may try to start the combustion process due to a malfunction. However, since the original fuel valve V1 is maintained in the shut-off state (valve closed state), the combustion process is not started. Also, when the exhaust fan operating state detecting means H1 detects that the engine is not in an operating state from the start of the combustion process to the start of the reforming process and after the reforming process is started. Even if the control device 60 malfunctions, the original fuel valve V1 is forcibly operated to the shut-off state (closed state), so that the combustion process and the reforming process can be stopped.

  In the above configuration, since the forcible operation circuit 61 is provided, the operation start command is not instructed, and the control device 60 is not performing any of the combustion process and the reforming process. If it is detected by the exhaust fan operating state detecting means H1 that it is not in the operating state, the combustion process or the reforming process can be prevented from being executed even if an operation start command is instructed thereafter.

  When a control device for a fuel cell that manages the operation of the fuel cell G is provided, if the exhaust fan operating state detection means H1 detects that the fuel cell G is not in an operating state, the control device for the fuel cell It is necessary to manage the operation of the fuel cell G based on the detection information of the exhaust fan operating state detection means H1, such as not starting the operation of G or stopping the operation of the fuel cell G.

[Second Embodiment]
Next, a second embodiment will be described.
In this embodiment, there is provided a ventilation fan operating state detecting means H2 for detecting whether the ventilation fan 57 is rotating or in an operating state where ventilation by the ventilation fan 57 exists, and the operation control means C is provided. However, when the ventilation fan operating state detection means H2 detects that the ventilation fan 57 is not in the operating state, it is different from the first embodiment in that an abnormality countermeasure process is executed. Since the other configuration is the same as that of the first embodiment, only different points will be described.

  That is, in this embodiment, as shown in FIG. 9, in addition to the exhaust fan operating state detecting means H1, the ventilation fan operating state detecting means H2 is provided, and the ventilation fan operating state detecting means H2 is provided with the ventilation fan 57. In the exhaust fan operating state detection means H1 of the first embodiment, a detection unit 81 that detects and acts on a rotary shaft 80 as a rotary member that rotates integrally with the rotary shaft 80 and outputs an electrical signal corresponding to the rotational speed of the rotary shaft 80 is used. A pulse generator 82 and an F / V converter 83 similar to those of the detection unit are provided, and an operation state signal (high level signal) and a non-operation state are compared by comparing an electric signal of the detection unit 81 with a discrimination reference value. A reference voltage generator 85 and a comparator 86 are provided as a comparator 84 that outputs a signal (low level signal).

  In addition to the AND circuit 71 and the switching transistor 72 of the first embodiment, the forcible operation circuit 61 includes an AND circuit 87 to which an output of the comparator 86 and a valve control signal from the control device 60 are input, The AND circuit 88 to which the output of the AND circuit 87 and the output of the AND circuit 71 are respectively input, and when the output of the AND circuit 88 is in a high level state, the conductive state is established, and when the output of the AND circuit 88 is in a low level state. A switching transistor 72 that is in a non-conducting state and a drive circuit 88A for driving the switching transistor 72 by the output of the AND circuit 88 are provided.

  With such a configuration, each of the exhaust fan operating state detecting means H1 and the ventilation fan operating state detecting means H2 detects that it is in an operating state and is a valve for opening the valve by the control device 60. When the control signal is output, the original fuel valve V1 is operated to open, and it is detected that at least one of the exhaust fan operating state detecting means H1 and the ventilation fan operating state detecting means H2 is not in the operating state. Then, the original fuel valve V1 is in a closed state (blocking state).

[Another embodiment]
Hereinafter, other embodiments are listed.

(A) The exhaust fan operating state detecting means may be configured as follows.
That is, in detecting whether the exhaust fan is in operation or not based on whether the exhaust fan is rotating, in the above embodiment, the protrusion formed integrally with the rotary shaft 63 that is a rotating member that rotates integrally with the exhaust fan 58. Although the pulse generator 67 that detects and acts on the portion 66 and outputs a pulse signal corresponding to the rotation speed of the rotating member is provided, instead of the configuration in which such a protrusion is provided, the outer peripheral portion of the rotating member is magnetically provided. A magnetic sensor is provided in a fixed position at a location where the magnetic body approaches and separates as the rotating member rotates, and the magnetic sensor detects the magnetic body to detect the rotating member. It may be configured to generate a pulse corresponding to the rotational speed.

  Further, instead of detecting whether the exhaust fan is operating or not depending on whether the exhaust fan is rotating or not, whether or not the exhaust fan is operating is detected based on whether or not ventilation by the exhaust fan exists. It is good also as a structure. For example, an air volume sensor that detects the amount of air blown by the exhaust fan, a wind speed sensor that detects the wind speed of air blown by the exhaust fan, a wind pressure sensor that detects the wind pressure of air blown by the exhaust fan, and whether or not the wind pressure of the air blown by the exhaust fan is greater than or equal to the set wind pressure Any one of wind pressure switches or the like that detect this is provided, and the information of the detection values detected by these sensors is converted into an electrical signal, and the air flow rate is equal to or larger than the set amount as in the above embodiments. It is good also as a structure which discriminate | determines whether it is or not and switches the open / close state of the original fuel valve V1.

  For example, in the case where a wind pressure switch is provided, the wind pressure switch is turned on when the wind pressure of the ventilation fan is higher than the set wind pressure and outputs a high level signal, and is turned off when the wind pressure of the ventilation fan is less than the set wind pressure. It may be configured to enter a state and output a low level signal. As a result, when a high level signal is output, the forcible operation circuit 61 switches the original fuel valve V1 to an open state, and when a low level signal is output, the forcible operation circuit 61 switches the original fuel valve V1 to a closed state.

  (B) When the operation control means detects that the exhaust fan operation state detection means is not in an operating state from the start of the exhaust fan operation process to the start of the combustion process, the combustion process The exhaust fan operating state detecting means is configured to start from the combustion process until the reforming process is started and after the reforming process is started. Even if it is detected that the engine is not in an operating state, the combustion process and the reforming process may not be stopped. And when it is detected that the exhaust fan operating state detecting means is not in the operating state and the combustion process is not started, a notification operation by the notifying means is executed to notify the user that the state is abnormal. To do.

  (C) When the operation control means detects that the exhaust fan operating state detection means is not in an operating state between the start of the combustion process and the start of the reforming process, the combustion After the process is stopped and the reforming process is started, the combustion process and the reforming process are stopped when the exhaust fan operating state detecting means detects that the engine is not in an operating state. In addition, from the start of the exhaust fan operation process to the start of the combustion process, the combustion process is started even if the exhaust fan operation state detecting means detects that the engine is not in an operating state. You may comprise. Then, during the execution of the combustion process or the reforming process, it is detected that the exhaust fan operating state detecting means is not in the operating state, and when the combustion process or the reforming process is not continued, the notifying operation by the notifying means is performed. It is set as the structure which alert | reports to a user that it is executed and is in an abnormal state.

(D) In the above embodiment, the exhaust fan starts to operate as the operation start command is issued, that is, the operation control means starts the operation of the exhaust fan when the operation start command is issued. Exemplified is an example in which the combustion process and the reforming process are performed after the exhaust fan operation process is performed. Instead of such a structure, the exhaust fan is configured to always operate. But you can.
For example, a drive circuit may be provided in which the exhaust fan starts operating as the hydrogen-containing gas generator is installed at the installation location and the power is turned on. Further, the exhaust fan may start operating as the driving power source for the operation control means is turned on and operated. In these configurations, when power is supplied to the operation control means, driving power is supplied to the exhaust fan, so that power is supplied to the operation control means. In other words, all the times when the operation control means is activated correspond to the time when the exhaust fan is scheduled to be in operation.

  In such a configuration in which the exhaust fan is always operated, the operation control means is configured such that when the exhaust fan is scheduled to be in operation, that is, when driving power is supplied to the exhaust fan. When it is detected by the exhaust fan operating state detecting means that it is not in the operating state, the combustion process and the reforming process are not executed.

  In other words, the operation control means does not start the combustion process when it is detected that the exhaust fan operating state detection means is not in the operating state between the time when the operation start command is issued and the time when the combustion process is started. . If the operation control means detects that the exhaust fan operating state detection means is not in the operating state between the start of the combustion process and the start of the reforming process, the combustion control is stopped, and After the reforming process is started, if the exhaust fan operating state detecting means detects that the engine is not in the operating state, the combustion process and the reforming process are stopped.

  Further, when the operation start command is not commanded and neither the combustion process nor the reforming process is executed by the operation control means, it is detected that the exhaust fan operating state detection means is not in the operating state. Then, even if an operation start command is instructed thereafter, it is possible to configure so that subsequent processing is not performed.

  Further, in the configuration provided with the exhaust fan operating state detecting means, the exhaust fan always operating may be configured as follows.

For example, if the operation start command is commanded to the operation control means by the manual operation tool, the operation from the manual operation tool to the operation control means is detected when the exhaust fan operating state detection means detects that the operation is not in operation. It is good also as a structure provided with the command prevention means which blocks that a start command is commanded.
Further, if the operation start command is commanded from the control means other than the operation control means to the operation control means, it is detected by the exhaust fan operating state detection means that the other control means is not in the operating state. Then, it may be configured not to give an operation start command to the operation control means.

  In short, when the operation start command is not instructed, and the operation stop state where neither the combustion process nor the reforming process is executed by the operation control means, the exhaust fan operating state detection means is not in the operating state. If detected, an operation start command may not be issued to the operation control means.

  (E) In the above embodiment, the operation control means C is provided with the control device 60 and the forcible operation circuit 61 composed of a microcomputer. However, the control device is not provided with such a forcible operation circuit. When the exhaust fan operating state detecting means detects that the engine 60 is not in an operating state between the start of the exhaust fan operation process and the start of the combustion process, control is performed so that the combustion process is not started. And when the exhaust fan operating state detecting means H1 detects that the engine is not in an operating state between the start of the combustion process and the start of the reforming process, the combustion process is performed. When the exhaust fan operating state detecting means H1 detects that the engine is not in an operating state after stopping and starting the reforming process, the combustion process is performed. Fine the modification treatment may be executed a control to stop.

  (F) In the above embodiment, the case where the fuel gas generating means is provided with the shift unit 5 and the selective oxidation unit 6 is illustrated, but the fuel cell does not require a low carbon monoxide concentration in the fuel gas. It is possible to omit the selective oxidation unit 6 or omit the transformation unit 5 and the selective oxidation unit 6. The fuel cell is not limited to a polymer type, and various types of fuel cells such as a solid oxide type and a phosphoric acid type can be used.

  (G) The hydrocarbon-based raw fuel gas is not limited to the natural gas-based city gas exemplified in the above embodiment, and various kinds of alcohols such as kerosene, propane gas, and methanol are used. Can be used.

  (H) In the above embodiment, the combustion part and the reforming part are exemplified as a flat rectangular parallelepiped shape. For example, a cylindrical body having an internal combustion part is provided, and the combustion part is A cylindrical body having a diameter larger than that of the cylindrical body to be formed is provided concentrically with the cylindrical body forming the combustion portion, so that the reforming processing section is formed between the inner and outer cylindrical bodies, The form of the combustion part and the reforming part can be variously changed, for example, formed in a so-called cylindrical shape.

(I) In the above embodiment, the reforming temperature detecting means is configured to use the reforming temperature sensor 38 that detects the temperature of the reforming processing unit 3, but instead of the reforming temperature sensor 38, combustion is performed. It is good also as a structure which includes the temperature sensor which detects the temperature of a part, and detects the temperature of the modification | reformation process part 3 indirectly based on the detection information of the temperature sensor.
In the above embodiment, the non-combustion state or the incomplete combustion state is determined based on the temperature detection information of the reforming processing unit 3 detected by the reforming temperature detecting means. In addition to the above, for example, as in the above embodiment, a plurality of containers for forming each part such as the transformation part and the selective oxidation part as well as the combustion part and the reforming part are rectangular flat containers B. If the configuration is such that a plurality of these are arranged side by side in the thickness direction of the plate-like shape, the shift treatment section and the selective oxidation section are thermally affected by the combustion state of the combustion section. A temperature sensor for detecting the temperature of the oxidation unit is provided, and after the operation control unit starts the reforming process, the temperature of the shift treatment unit and the selective oxidation unit detected by the temperature sensor is inappropriately lowered. If this is That a may be configured to determine.

DESCRIPTION OF SYMBOLS 3 Reforming process part 4 Combustion part 28 Combustion air supply means 38 Reforming temperature detection means 43 Heat-transfer plate 49 Reformation chamber 50 Combustion chamber 54 Casing 57 Ventilation fan 58 Exhaust fan 61 Forced operation circuit 63 Rotating member 64 Detection part 65 Comparison part 81 Detection part 84 Comparison part C Operation control means H1 Exhaust fan operation state detection means H2 Ventilation fan operation state detection means S Steam generation means V1 Original fuel valve V4 Raw fuel valve V5 Combustion fuel valve Vk Heating fuel gas supply intermittent means Vg Raw fuel gas supply intermittent means

Claims (10)

A reforming processing unit for reforming a mixed gas containing a raw fuel gas containing hydrocarbons and water vapor to generate a reformed gas containing hydrogen gas;
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. A hydrogen-containing gas generator configured to control, comprising:
The operation control means is
If the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. If the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition after the reforming process is started, the combustion process and the reforming process are stopped. Configured to
An exhaust fan for exhausting combustion exhaust gas from the combustion section to the outside;
Exhaust fan operating state detecting means for detecting whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists is provided,
The operation control means is
When the exhaust fan is scheduled to be in the operating state and the exhaust fan operating state detecting means detects that the exhaust fan is not in the operating state, the combustion process and the reforming process are not executed. A hydrogen-containing gas generator. A reforming processing unit for reforming a mixed gas containing a raw fuel gas containing hydrocarbons and water vapor to generate a reformed gas containing hydrogen gas;
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. A hydrogen-containing gas generator configured to control, comprising:
The operation control means is
If the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. If the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition after the reforming process is started, the combustion process and the reforming process are stopped. Configured to
An exhaust fan that starts operating as the operation start command is commanded or constantly operates and exhausts the combustion exhaust gas from the combustion section to the outside;
Exhaust fan operating state detecting means for detecting whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists is provided,
The operation control means is
When the exhaust fan is scheduled to be in the operating state between the time when the operation start command is issued and the time when the combustion process is started, the exhaust fan operating state detecting means is not in the operating state. A hydrogen-containing gas generation device configured not to start the combustion process when a gas is detected. A reforming processing unit for reforming a mixed gas containing a raw fuel gas containing hydrocarbons and water vapor to generate a reformed gas containing hydrogen gas;
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. A hydrogen-containing gas generator configured to control, comprising:
The operation control means is
If the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. If the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition after the reforming process is started, the combustion process and the reforming process are stopped. Configured to
An exhaust fan that starts operating as the operation start command is commanded or constantly operates and exhausts the combustion exhaust gas from the combustion section to the outside;
Exhaust fan operating state detecting means for detecting whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists is provided,
The operation control means is
If it is detected by the exhaust fan operating state detection means that the engine is not in an operating state between the start of the combustion process and the start of the reforming process, the combustion process is stopped and the modified A hydrogen-containing gas generator configured to stop the combustion process and the reforming process when the exhaust fan operating state detecting means detects that the engine is not in an operating state after starting a quality treatment. A reforming processing unit for reforming a mixed gas containing a raw fuel gas containing hydrocarbons and water vapor to generate a reformed gas containing hydrogen gas;
A combustion section for burning the fuel gas for heating and heating the reforming treatment section;
Raw fuel gas supply intermittent means for intermittently supplying raw fuel gas to the reforming unit;
Steam generating means for generating steam to be supplied to the reforming unit;
Heating fuel gas supply intermittent means for intermittently supplying the heating fuel gas to the combustion section;
Combustion air supply means for supplying combustion air to the combustion section;
A reforming temperature detecting means for detecting the temperature of the reforming processing unit;
Operation control means for controlling operation is provided,
The operation control means is
When an operation start command is commanded, a combustion process for performing combustion operation of the combustion section is executed. Next, when the temperature detected by the reforming temperature detecting means satisfies the reforming process start condition, the reforming process is performed. The heating fuel gas supply intermittent means, the combustion air supply means, the raw fuel gas supply intermittent means, and the water vapor generating means are operated in order to perform a reforming process for reforming in the quality treatment section. A hydrogen-containing gas generator configured to control, comprising:
The operation control means is
If the temperature detected by the reforming temperature detection means does not satisfy the initial combustion confirmation condition between the start of the combustion process and the start of the reforming process, the combustion process is stopped. If the temperature detected by the reforming temperature detecting means does not satisfy the reforming combustion confirmation condition after the reforming process is started, the combustion process and the reforming process are stopped. Configured to
An exhaust fan that starts operating as the operation start command is commanded or constantly operates and exhausts the combustion exhaust gas from the combustion section to the outside;
Exhaust fan operating state detecting means for detecting whether the exhaust fan is rotating or in an operating state where ventilation by the exhaust fan exists is provided,
The operation control means is
When the exhaust fan is scheduled to be in the operating state between the time when the operation start command is issued and the time when the combustion process is started, the exhaust fan operating state detecting means is not in the operating state. Is detected, the combustion process is not started, and
If it is detected by the exhaust fan operating state detection means that the engine is not in an operating state between the start of the combustion process and the start of the reforming process, the combustion process is stopped and the modified A hydrogen-containing gas generator configured to stop the combustion process and the reforming process when the exhaust fan operating state detecting means detects that the engine is not in an operating state after starting a quality treatment.   A forcible operation circuit for forcibly operating the raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means to a cutoff state when the operation control means detects that the exhaust fan operating state detection means is not in an operating state The hydrogen-containing gas generating device according to claim 1, wherein the hydrogen-containing gas generating device is provided. The exhaust fan operating state detecting means detects a rotating member that rotates integrally with the exhaust fan and outputs an electric signal corresponding to the rotational speed of the rotating member, and the electric signal of the detecting unit is discriminated. Comparing with the reference value for operation, it is composed of a comparison unit that outputs an operation state signal and a non-operation state signal,
The forcible operation circuit is configured to forcibly operate the raw fuel gas supply intermittent means and the heating fuel gas supply intermittent means to a cutoff state when a non-operation state signal is output from the comparison unit. Item 6. The hydrogen-containing gas generator according to Item 5. The raw fuel gas supply intermittent means intermittently interrupts the supply of the original fuel gas and the supply of the original fuel gas through the original fuel valve to the reforming unit as the raw fuel gas. And consists of a raw fuel valve that
The heating fuel gas supply intermittent means comprises the original fuel valve and a combustion fuel valve for intermittently supplying the original fuel gas supplied through the original fuel valve as the heating fuel gas to the combustion section. And
The hydrogen-containing gas generation device according to claim 6, wherein the forcible operation circuit is configured to forcibly operate the original fuel valve in a shut-off state. A casing in which the entire apparatus is housed and an air inlet and an air outlet are formed, a ventilation fan that ventilates the inside of the casing, and an operating state in which the ventilation fan is rotating or ventilation is provided by the ventilation fan A ventilation fan operating state detection means for detecting whether or not,
The operation control means is
The hydrogen according to any one of claims 1 to 7, wherein an abnormality countermeasure process is executed when the ventilation fan operating state detecting means detects that the ventilation fan is not in the operating state. Contained gas generator.   The ventilating fan operating state detecting means detects a rotating member that rotates integrally with the ventilating fan and outputs an electric signal corresponding to the rotational speed of the rotating member, and the electric signal of the detecting unit is discriminated. The hydrogen-containing gas generation device according to claim 8, further comprising a comparison unit that compares the reference value for operation and outputs an operation state signal and a non-operation state signal. A combustion chamber forming a combustion space in the combustion section is a flat rectangular parallelepiped that is thin in the thickness direction of the heat transfer plate on one side of the heat transfer plate that transfers heat of the combustion section to the reforming processing section. Provided in the state formed,
In a state in which the reforming chamber forming the reforming space in the reforming unit is formed in a thin rectangular parallelepiped shape on the other side of the heat transfer plate in the thickness direction of the heat transfer plate. The hydrogen-containing gas generator according to any one of claims 1 to 9, which is provided.

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