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1. 发明专利

AP201609199A0 METHOD AND PLANT FOR CO-GENERATION OF HEAT AND POWER 未知
公开(公告)号：AP201609199A0
公开(公告)日：2016-05-31
申请号：AP201609199
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , PAPA INIDA , WELGEMOED CORNE
IPC分类号： F01K23/06 , F01K7/18 , F01K13/02 , F01K17/02 , F22G5/12

2. 发明专利

AU2014347765B2 Method and plant for co-generation of heat and power 未知
公开(公告)号：AU2014347765B2
公开(公告)日：2017-12-14
申请号：AU2014347765
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , WELGEMOED CORNE
IPC分类号： F22G5/12 , F01K7/18 , F01K13/02 , F01K17/02 , F01K23/06
摘要： A method of operating a combined heat and power plant (10) (CHP plant) is provided. The CHP plant (10) includes a hot flue gas generator (12) generating hot flue gas which is then cooled in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes a steam evaporator (26) downstream of the hot flue gas generator (12), and at least one steam superheater (22) between the hot flue gas generator (12) and the steam evaporator (26). The steam superheater (22) is configured to superheat, during normal operating conditions of the CHP plant (10), at least steam (110) imported into the HRSG (16). The method includes, when there is insufficient heat removal from the hot flue gas downstream from the hot flue gas generator (12) but upstream of the steam evaporator (26) as a result of insufficient mass flow of imported steam (110) to the steam superheater (22), to the extent that the hot flue gas temperature downstream of the steam superheater (22) will rise or rises to or above a predetermined limit, quenching steam inside the steam superheater (22) or steam being fed to the steam superheater (22) by injecting boiler feed water or condensate (162) into the steam to produce steam in the steam superheater (22) thereby to increase the removal of heat from the hot flue gas and hence to reduce the hot flue gas temperatures downstream of the steam superheater (22).

3. 发明专利

CA2929399A1 CO-GENERATION OF HEAT AND POWER 未知
公开(公告)号：CA2929399A1
公开(公告)日：2015-05-14
申请号：CA2929399
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , PAPA INIDA , WELGEMOED CORNE
IPC分类号： F22G5/12 , F01K7/18 , F01K13/02 , F01K17/02 , F01K23/06
摘要： A method of operating a combined heat and power plant (10) (CHP plant) includes generating hot flue gas in a hot flue gas generator (12) and cooling the hot flue gas in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes an HP steam evaporator (26) downstream of the hot flue gas generator (12) in which HP steam is generated and in which the hot flue gas is cooled, at least one HP steam superheater (20, 22) between the hot flue gas generator (12) and the HP steam evaporator (26) in which at least HP steam from the HP steam evaporator is superheated and in which the hot flue gas is cooled, and an MP steam superheater (24) upstream of the HP steam evaporator (26) in which MP steam is superheated by the hot flue gas and in which hot flue gas is cooled.

4. 发明专利

AU2014347766B2 Method and plant for co-generation of heat and power 未知
公开(公告)号：AU2014347766B2
公开(公告)日：2018-01-25
申请号：AU2014347766
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , PAPA INIDA , WELGEMOED CORNE
IPC分类号： F22G5/12 , F01K7/18 , F01K13/02 , F01K17/02 , F01K23/06
摘要： A method of operating a combined heat and power plant (10) (CHP plant) includes generating hot flue gas in a hot flue gas generator (12) and cooling the hot flue gas in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes an HP steam evaporator (26) downstream of the hot flue gas generator (12) in which HP steam is generated and in which the hot flue gas is cooled, at least one HP steam superheater (20, 22) between the hot flue gas generator (12) and the HP steam evaporator (26) in which at least HP steam from the HP steam evaporator is superheated and in which the hot flue gas is cooled, and an MP steam superheater (24) upstream of the HP steam evaporator (26) in which MP steam is superheated by the hot flue gas and in which hot flue gas is cooled.

5. 发明专利

CA2929346A1 METHOD AND PLANT FOR CO-GENERATION OF HEAT AND POWER 未知
公开(公告)号：CA2929346A1
公开(公告)日：2015-05-14
申请号：CA2929346
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , WESSELS RIAN , WELGEMOED CORNE
IPC分类号： F22G5/12 , F01K7/18 , F01K13/02 , F01K17/02 , F01K23/06
摘要： A method of operating a combined heat and power plant (10) (CHP plant) includes generating hot flue gas and cooling the hot flue gas in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes an LP steam evaporator (36) designed to generate steam at least over a pressure range of from 2 bar(g) to 18 bar(g) so that either LP steam or MP steam can selectively be generated by the LP steam generator (36), thereby to cool the hot flue gas, and an MP steam superheater (24) upstream of the LP steam evaporator (36) to superheat MP steam in heat exchange with the hot flue gas thereby to cool the hot flue gas. The method further includes, when no or insufficient MP steam is being imported to the MP steam superheater (24) to ensure safe operation of the MP steam superheater, and/or when a demand exists for exporting MP steam which cannot be satisfied by imported MP steam superheated in the MP steam superheater (24), and/or when a demand exists for MP steam in the CHP plant which cannot be satisfied by imported MP steam, operating the LP steam evaporator (36) at an operating pressure in the range of between 8 bar(g) and 18 bar(g) to generate MP steam to wet the MP steam superheater (24) and/or to satisfy at least to some extent said demand for MP steam, and thereafter, when sufficient MP steam is being imported to the MP steam superheater (24) from external of the CHP plant (10) to ensure safe operation of the MP steam superheater (24), and/or when any demand for exported MP steam is satisfied by imported MP steam which is superheated in the MP steam superheater (24) and then exported, and/or when there is no more demand for exporting of MP steam, and/or when the demand for MP steam in the CHP plant (10) is being satisfied at least to some extent by imported MP steam, reducing the operating pressure of the LP steam evaporator (36) to a pressure in the range of between 2 bar(g) and 8 bar(g) thereby to generate LP steam.

6. 发明专利

AU2014347767B2 Method and plant for co-generation of heat and power 未知
公开(公告)号：AU2014347767B2
公开(公告)日：2018-08-02
申请号：AU2014347767
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , WESSELS RIAN , WELGEMOED CORNE
IPC分类号： F22G5/12 , F01K7/18 , F01K13/02 , F01K17/02 , F01K23/06
摘要： A method of operating a combined heat and power plant (10) (CHP plant) includes generating hot flue gas and cooling the hot flue gas in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes an LP steam evaporator (36) designed to generate steam at least over a pressure range of from 2 bar(g) to 18 bar(g) so that either LP steam or MP steam can selectively be generated by the LP steam generator (36), thereby to cool the hot flue gas, and an MP steam superheater (24) upstream of the LP steam evaporator (36) to superheat MP steam in heat exchange with the hot flue gas thereby to cool the hot flue gas. The method further includes, when no or insufficient MP steam is being imported to the MP steam superheater (24) to ensure safe operation of the MP steam superheater, and/or when a demand exists for exporting MP steam which cannot be satisfied by imported MP steam superheated in the MP steam superheater (24), and/or when a demand exists for MP steam in the CHP plant which cannot be satisfied by imported MP steam, operating the LP steam evaporator (36) at an operating pressure in the range of between 8 bar(g) and 18 bar(g) to generate MP steam to wet the MP steam superheater (24) and/or to satisfy at least to some extent said demand for MP steam, and thereafter, when sufficient MP steam is being imported to the MP steam superheater (24) from external of the CHP plant (10) to ensure safe operation of the MP steam superheater (24), and/or when any demand for exported MP steam is satisfied by imported MP steam which is superheated in the MP steam superheater (24) and then exported, and/or when there is no more demand for exporting of MP steam, and/or when the demand for MP steam in the CHP plant (10) is being satisfied at least to some extent by imported MP steam, reducing the operating pressure of the LP steam evaporator (36) to a pressure in the range of between 2 bar(g) and 8 bar(g) thereby to generate LP steam.

7. 发明专利

AU2014347766A1 Method and plant for co-generation of heat and power 未知
公开(公告)号：AU2014347766A1
公开(公告)日：2016-06-09
申请号：AU2014347766
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , PAPA INIDA , WELGEMOED CORNE
IPC分类号： F22G5/12 , F01K7/18 , F01K13/02 , F01K17/02 , F01K23/06
摘要： A method of operating a combined heat and power plant (10) (CHP plant) includes generating hot flue gas in a hot flue gas generator (12) and cooling the hot flue gas in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes an HP steam evaporator (26) downstream of the hot flue gas generator (12) in which HP steam is generated and in which the hot flue gas is cooled, at least one HP steam superheater (20, 22) between the hot flue gas generator (12) and the HP steam evaporator (26) in which at least HP steam from the HP steam evaporator is superheated and in which the hot flue gas is cooled, and an MP steam superheater (24) upstream of the HP steam evaporator (26) in which MP steam is superheated by the hot flue gas and in which hot flue gas is cooled.

8. 发明专利

AU2014347767A1 Method and plant for co-generation of heat and power 未知
公开(公告)号：AU2014347767A1
公开(公告)日：2016-06-09
申请号：AU2014347767
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , WESSELS RIAN , WELGEMOED CORNE
IPC分类号： F22G5/12 , F01K7/18 , F01K13/02 , F01K17/02 , F01K23/06
摘要： A method of operating a combined heat and power plant (10) (CHP plant) includes generating hot flue gas and cooling the hot flue gas in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes an LP steam evaporator (36) designed to generate steam at least over a pressure range of from 2 bar(g) to 18 bar(g) so that either LP steam or MP steam can selectively be generated by the LP steam generator (36), thereby to cool the hot flue gas, and an MP steam superheater (24) upstream of the LP steam evaporator (36) to superheat MP steam in heat exchange with the hot flue gas thereby to cool the hot flue gas. The method further includes, when no or insufficient MP steam is being imported to the MP steam superheater (24) to ensure safe operation of the MP steam superheater, and/or when a demand exists for exporting MP steam which cannot be satisfied by imported MP steam superheated in the MP steam superheater (24), and/or when a demand exists for MP steam in the CHP plant which cannot be satisfied by imported MP steam, operating the LP steam evaporator (36) at an operating pressure in the range of between 8 bar(g) and 18 bar(g) to generate MP steam to wet the MP steam superheater (24) and/or to satisfy at least to some extent said demand for MP steam, and thereafter, when sufficient MP steam is being imported to the MP steam superheater (24) from external of the CHP plant (10) to ensure safe operation of the MP steam superheater (24), and/or when any demand for exported MP steam is satisfied by imported MP steam which is superheated in the MP steam superheater (24) and then exported, and/or when there is no more demand for exporting of MP steam, and/or when the demand for MP steam in the CHP plant (10) is being satisfied at least to some extent by imported MP steam, reducing the operating pressure of the LP steam evaporator (36) to a pressure in the range of between 2 bar(g) and 8 bar(g) thereby to generate LP steam.

9. 发明专利

AU2014347765A1 Method and plant for co-generation of heat and power 未知
公开(公告)号：AU2014347765A1
公开(公告)日：2016-06-09
申请号：AU2014347765
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , WELGEMOED CORNE
IPC分类号： F22G5/12 , F01K7/18 , F01K13/02 , F01K17/02 , F01K23/06
摘要： A method of operating a combined heat and power plant (10) (CHP plant) is provided. The CHP plant (10) includes a hot flue gas generator (12) generating hot flue gas which is then cooled in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes a steam evaporator (26) downstream of the hot flue gas generator (12), and at least one steam superheater (22) between the hot flue gas generator (12) and the steam evaporator (26). The steam superheater (22) is configured to superheat, during normal operating conditions of the CHP plant (10), at least steam (110) imported into the HRSG (16). The method includes, when there is insufficient heat removal from the hot flue gas downstream from the hot flue gas generator (12) but upstream of the steam evaporator (26) as a result of insufficient mass flow of imported steam (110) to the steam superheater (22), to the extent that the hot flue gas temperature downstream of the steam superheater (22) will rise or rises to or above a predetermined limit, quenching steam inside the steam superheater (22) or steam being fed to the steam superheater (22) by injecting boiler feed water or condensate (162) into the steam to produce steam in the steam superheater (22) thereby to increase the removal of heat from the hot flue gas and hence to reduce the hot flue gas temperatures downstream of the steam superheater (22).

10. 发明专利

AP201609200A0 METHOD AND PLANT FOR CO-GENERATION OF HEAT AND POWER 未知
公开(公告)号：AP201609200A0
公开(公告)日：2016-05-31
申请号：AP201609200
申请日：2014-10-31
申请人： SASOL TECH PTY LTD
发明人： GASPARINI FRANCO , WESSELS RIAN , WELGEMOED CORNE
IPC分类号： F01K23/06 , F01K7/18 , F01K13/02 , F01K17/02 , F22G5/12

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