CN105465818A - Leakage monitoring device for safety shut-off valves of fuel system for combustion furnace - Google Patents
Leakage monitoring device for safety shut-off valves of fuel system for combustion furnace Download PDFInfo
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- CN105465818A CN105465818A CN201511004837.4A CN201511004837A CN105465818A CN 105465818 A CN105465818 A CN 105465818A CN 201511004837 A CN201511004837 A CN 201511004837A CN 105465818 A CN105465818 A CN 105465818A
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- Prior art keywords
- valve
- combustion furnace
- fuel
- shut
- safety
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
- F23M11/04—Means for supervising combustion, e.g. windows
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention provides a leakage monitoring device for safety shut-off valves of a fuel system for a combustion furnace. A monitoring pipe is connected to a fuel delivering pipe between the safety shut-off valves and the combustion furnace, and a flow sensor and a first remote control shut-off valve are sequentially connected to the monitoring pipe, and are both connected with a remote controller through signals. The leakage monitoring device has the beneficial effects that off-line gas tightness detection of the safety shut-off valves is avoided, and real-time monitoring for the safety shut-off valves is achieved; a fuel system for an existing fuel furnace is not influenced, and replacing of parts in a detecting device is achieved; pollution, caused by fuel leakage, to the external environment is avoided in the monitoring process; when leakage of the safety shut-off valves is monitored, the combustion furnace is controlled to be opened or closed, and safety accidents are prevented; and the fuel system is closed in an alarm reminding manner or an automatic control manner, and safety accidents are prevented.
Description
Technical Field
The invention relates to the technical field of safety control of industrial combustion furnaces, in particular to a leakage monitoring device for a safety shut-off valve of a fuel system for a combustion furnace.
Background
At present, in the safe operation process of a combustion furnace in the petrochemical industry, the safety control of a fuel system is important, and the safety control is directly related to the safe operation of the combustion furnace under normal working conditions and the safe stop of the combustion furnace under abnormal operating conditions. Safety shut-off valves in furnace fuel systems are the most important protective equipment in furnace fuel systems. Due to the change of production tasks or production working conditions, when the combustion furnace is required to be closed, because the internal valve of the safety shut-off valve is likely to leak, leaked fuel enters the hearth of the combustion furnace, and the accidents of hearth fire and explosion are frequent. In order to prevent the leakage of the internal valve of the safety shut-off valve, the conventional method is to perform off-line air tightness detection on the safety shut-off valve during the maintenance period of the petrochemical device. Offline air tightness detection requires that a safety shut-off valve is placed on detection equipment of a special mechanism for detection. So, the safety cut-off valve internal valve in the production process takes place to leak, can not in time detect and probably cause the incident to demolish, transport, detect, install fuel system again with the safety cut-off valve from fuel system, need invest a large amount of manpower and materials, consume the labour consuming time.
Disclosure of Invention
The invention aims to provide a leakage monitoring device for a safety shut-off valve of a fuel system for a combustion furnace, so as to realize real-time detection of the safety shut-off valve.
The invention provides a leakage monitoring device for a safety shut-off valve of a fuel system for a combustion furnace, wherein a fuel conveying pipeline between the safety shut-off valve and the combustion furnace is connected with a monitoring pipeline, a flow sensor and a first remote control shut-off valve are sequentially connected on the monitoring pipeline, and the flow sensor and the first remote control shut-off valve are in signal connection with a remote controller.
Furthermore, a first manual cut-off valve is connected between the flow sensor and the safety cut-off valve on the monitoring pipeline.
Furthermore, the tail end of the monitoring pipeline is connected with a fuel recovery container.
Further, the remote controller is in signal connection with the combustion furnace.
Furthermore, the remote controller is in signal connection with an alarm.
Furthermore, a second remote control cut-off valve is arranged on the fuel conveying pipeline before the safety cut-off valve, and the remote controller is in signal connection with the second remote control cut-off valve.
Furthermore, a second manual cut-off valve is arranged on the fuel conveying pipeline before the safety cut-off valve.
Compared with the prior art, the leakage monitoring device for the safety shut-off valve of the fuel system for the combustion furnace has the following characteristics and advantages:
1. the leakage monitoring device for the safety shut-off valve of the fuel system for the combustion furnace does not need to perform off-line air tightness detection on the safety shut-off valve, and realizes real-time monitoring on the safety shut-off valve.
2. The leakage monitoring device for the safety shut-off valve of the fuel system for the combustion furnace does not influence the fuel system for the existing fuel furnace, and realizes the replacement of parts in the detection device.
3. The fuel system safety shut-off valve leakage monitoring device for the combustion furnace stops fuel leakage from polluting the external environment in the monitoring process.
4. The leakage monitoring device for the safety shut-off valve of the fuel system for the combustion furnace, disclosed by the invention, has the advantages that the leakage of the safety shut-off valve is monitored, the opening and closing of the combustion furnace are controlled, and the occurrence of safety accidents is prevented.
5. The leakage monitoring device of the safety shut-off valve of the fuel system for the combustion furnace has the advantages that the fuel system is closed by alarm prompt or is automatically controlled to be closed, and safety accidents are prevented.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a leak monitoring device for a safety shut-off valve of a fuel system for a combustion furnace according to an embodiment of the present invention;
wherein,
1. safety shut-off valve, 2, first long-range shut-off valve, 3, first manual shut-off valve, 4, flow sensor, 5, remote control ware, 51, alarm. 6. Fuel recovery vessel, 7, second remote shut-off valve, 8, burner, 91, fuel delivery line, 92, monitoring line.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1, the present embodiment provides a leakage monitoring device for a safety shut-off valve of a fuel system for a combustion furnace, wherein a monitoring pipeline 92 is connected to a fuel conveying pipeline 91 between the safety shut-off valve 1 and the combustion furnace 8, a flow sensor 4 and a first remote control shut-off valve 2 are sequentially connected to the monitoring pipeline 92, and the flow sensor 4 and the first remote control shut-off valve 2 are in signal connection with a remote controller 5. When the combustion furnace 8 is normally operated, the remote controller 5 controls the first remote control cut-off valve 2 to be in a closed state, and the fuel in the fuel delivery pipeline 91 directly enters the combustion furnace 8 for a subsequent combustion process. When the combustion furnace 8 is started for ignition, safely stopped or stopped in a chain manner, the safety cut-off valve 1 is closed, and if the internal valve of the safety cut-off valve 1 leaks, the leaked fuel enters the combustion furnace 8, which may cause a safety accident such as explosion of the furnace chamber in the combustion furnace 8. Through remote control 5 control, open first remote cutoff valve 2, the fuel of leaking is responded to by flow sensor 4 through detection pipeline 92, and flow sensor 4 uploads signal to remote control 5, and remote control 5 department can show that the internal valve of safety cutoff valve 1 takes place to leak, and the suggestion maintenance personal carries out emergency treatment. A first manual shut-off valve 3 is connected to the monitoring line 92 between the flow sensor 4 and the safety shut-off valve 1. When the flow sensor 4, the first remote control cut-off valve 2 and the fuel recovery container 6 need to be replaced, the first manual cut-off valve 3 is closed, so that the normal operation of the fuel system for the conventional fuel furnace is not influenced, and the replacement of the flow sensor 4, the first remote control cut-off valve 2 and the fuel recovery container 6 is realized. The end of the monitoring pipeline 92 is connected with a fuel recovery container 6, leaked fuel is collected in the monitoring process, and the fuel leakage is prevented from polluting the external environment. The remote controller 5 is in signal connection with the combustion furnace 8, the flow sensor 4 monitors that the internal valve of the safety shut-off valve leaks, the flow sensor 4 uploads a signal to the remote controller 5, and the remote controller 5 controls the opening and closing of the combustion furnace 8, for example, ignition operation of workers is prohibited, so that safety accidents such as explosion are prevented. The remote controller 5 is in signal connection with an alarm 51, a second remote control cut-off valve 7 is arranged in front of the safety cut-off valve 1 on the fuel conveying pipeline 91, the remote controller 5 is in signal connection with the second remote control cut-off valve 7, or a second manual cut-off valve (not shown in the drawing) is arranged in front of the safety cut-off valve 1 on the fuel conveying pipeline 91. The flow sensor 4 monitors that the inner valve of the safety shut-off valve leaks, the flow sensor 4 uploads a signal to the remote controller 5, the remote controller 5 controls the alarm 51 to give an alarm, and a worker can be prompted to close the second manual shut-off valve or close the second remote control shut-off valve 7 through the control of the remote controller 5 so as to close a fuel system, so that safety accidents such as explosion are prevented.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a fuel system safety shut-off valve leakage monitoring device for combustion furnace which characterized in that: the fuel conveying pipeline between the safety shut-off valve and the combustion furnace is connected with a monitoring pipeline, the monitoring pipeline is sequentially connected with a flow sensor and a first remote control shut-off valve, and the flow sensor and the first remote control shut-off valve are in signal connection with a remote controller.
2. The fuel system safety shut-off valve leakage monitoring device for a combustion furnace according to claim 1, characterized in that: and a first manual cut-off valve is connected between the flow sensor and the safety cut-off valve on the monitoring pipeline.
3. The fuel system safety shut-off valve leakage monitoring device for a combustion furnace according to claim 1 or 2, characterized in that: the tail end of the monitoring pipeline is connected with a fuel recovery container.
4. The fuel system safety shut-off valve leakage monitoring device for a combustion furnace according to claim 3, characterized in that: the remote controller is in signal connection with the combustion furnace.
5. The device for monitoring the leakage of the safety shut-off valve of the fuel system for the combustion furnace according to claim 4, characterized in that: the remote controller is in signal connection with the alarm.
6. The fuel system safety shut-off valve leakage monitoring device for a combustion furnace according to claim 5, characterized in that: and a second remote control cut-off valve is arranged on the fuel conveying pipeline before the safety cut-off valve, and the remote controller is in signal connection with the second remote control cut-off valve.
7. The fuel system safety shut-off valve leakage monitoring device for a combustion furnace according to claim 5, characterized in that: and a second manual cut-off valve is arranged on the fuel conveying pipeline before the safety cut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004837.4A CN105465818A (en) | 2015-12-29 | 2015-12-29 | Leakage monitoring device for safety shut-off valves of fuel system for combustion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004837.4A CN105465818A (en) | 2015-12-29 | 2015-12-29 | Leakage monitoring device for safety shut-off valves of fuel system for combustion furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105465818A true CN105465818A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511004837.4A Pending CN105465818A (en) | 2015-12-29 | 2015-12-29 | Leakage monitoring device for safety shut-off valves of fuel system for combustion furnace |
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| CN (1) | CN105465818A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1936430A (en) * | 2006-04-03 | 2007-03-28 | 浙江麦姆龙仪表有限公司 | Microleak automatic protection apparatus based on microflow detection and method thereof |
| CN102928181A (en) * | 2012-10-31 | 2013-02-13 | 中国石油化工股份有限公司 | Simulation system for inner leak detection of hydrocarbon valve |
| CN203395571U (en) * | 2013-06-25 | 2014-01-15 | 上海佳豪船舶工程设计股份有限公司 | Fuel adding device applicable for small LNG (liquefied natural gas) power driving vessel |
| CN103672904A (en) * | 2013-12-19 | 2014-03-26 | 江阴江顺铝型材成套设备制造有限公司 | Gas line of combustor |
| CN105026839A (en) * | 2013-03-29 | 2015-11-04 | 三菱重工业株式会社 | Gas leakage detection device and method for gas internal combustion engine |
-
2015
- 2015-12-29 CN CN201511004837.4A patent/CN105465818A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1936430A (en) * | 2006-04-03 | 2007-03-28 | 浙江麦姆龙仪表有限公司 | Microleak automatic protection apparatus based on microflow detection and method thereof |
| CN102928181A (en) * | 2012-10-31 | 2013-02-13 | 中国石油化工股份有限公司 | Simulation system for inner leak detection of hydrocarbon valve |
| CN105026839A (en) * | 2013-03-29 | 2015-11-04 | 三菱重工业株式会社 | Gas leakage detection device and method for gas internal combustion engine |
| CN203395571U (en) * | 2013-06-25 | 2014-01-15 | 上海佳豪船舶工程设计股份有限公司 | Fuel adding device applicable for small LNG (liquefied natural gas) power driving vessel |
| CN103672904A (en) * | 2013-12-19 | 2014-03-26 | 江阴江顺铝型材成套设备制造有限公司 | Gas line of combustor |
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Application publication date: 20160406 |
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