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
- Publication number
- 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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- China
- Prior art keywords
- valve
- combustion furnace
- fuel system
- safety cut
- valves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
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 present invention relates to industrial combustion furnace safety control technology field, particularly relate to a kind of combustion furnace fuel system safety cut-off valve leakage monitor.
Background technology
At present, in the combustion furnace safe operation process of petroleum chemical industry, fuel system security control holds the balance, and is directly connected to the emergency of combustion furnace when the safe operation of nominal situation and abnormal operation condition.Safety cut-off valve in combustion furnace fuel system is of paramount importance proterctive equipment in combustion furnace fuel system.Due to the change of production task or production status, combustion furnace is when being required to cut out, and because the internal valve of safety cut-off valve likely leaks, the fuel of leakage enters in the burner hearth of combustion furnace, causes the accident of burner hearth blast on fire of common occurrence.In order to prevent the internal valve of safety cut-off valve from leaking, current way is exactly the turn(a)round at petrochemical plant, carries out off-line air-leakage test to safety cut-off valve.The checkout equipment that off-line air-leakage test needs safety cut-off valve to be positioned over specialized agency detects.So, safety cut-off valve internal valve in production process leaks, and can not detect in time and likely cause security incident, and is being removed from fuel system by safety cut-off valve, carries, detects, is being installed to fuel system again, need to drop into a large amount of manpower and materials, work consuming is consuming time.
Summary of the invention
The object of the present invention is to provide a kind of combustion furnace fuel system safety cut-off valve leakage monitor to realize the real-time detection to safety cut-off valve.
The invention provides a kind of combustion furnace fuel system safety cut-off valve leakage monitor, fuel pump deliver line between safety cut-off valve and combustion furnace is connected with monitoring pipeline, monitoring pipeline is connected with flow sensor and the first Long-distance Control stop valve in turn, and flow sensor and the first Long-distance Control stop valve all signal are connected remote controllers.
Further, monitor on pipeline between flow sensor and safety cut-off valve, be connected with the first manual stop valve.
Further, monitor line end and be connected with fuel recovery container.
Further, remote controller signal connects combustion furnace.
Further, remote controller signal connects alarm.
Further, fuel pump deliver line was provided with before safety cut-off valve the second Long-distance Control stop valve, remote controller signal connects the second Long-distance Control stop valve.
Further, fuel pump deliver line was provided with before safety cut-off valve the second manual stop valve.
Compared with prior art, combustion furnace fuel system safety cut-off valve leakage monitor of the present invention has following characteristics and advantage:
1, combustion furnace fuel system safety cut-off valve leakage monitor of the present invention, need not carry out off-line air-leakage test to safety cut-off valve, realize safety cut-off valve Real-Time Monitoring.
2, combustion furnace fuel system safety cut-off valve leakage monitor of the present invention, does not affect existing Fuel Furnace fuel system, realizes the replacing of parts in checkout gear.
3, combustion furnace fuel system safety cut-off valve leakage monitor of the present invention, stops fuel leakage and pollutes external environment condition in observation process.
4, combustion furnace fuel system safety cut-off valve leakage monitor of the present invention, monitors safety cut-off valve and leaks, the switch of control combustion stove, prevent security incident from occurring.
5, combustion furnace fuel system safety cut-off valve leakage monitor of the present invention, alarm is closed fuel system or is automatically controlled to close fuel system, prevents security incident from occurring.
After reading the specific embodiment of the present invention by reference to the accompanying drawings, the other features and advantages of the invention will become clearly.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of combustion furnace fuel system safety cut-off valve leakage monitor in the embodiment of the present invention;
Wherein,
1, safety cut-off valve, the 2, first long-range stop valve, the 3, first manual stop valve, 4, flow sensor, 5, remote controllers, 51, alarm.6, fuel recovery container, the 7, second long-range stop valve, 8, combustion furnace, 91, fuel pump deliver line, 92, monitoring pipeline.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, the present embodiment provides a kind of combustion furnace fuel system safety cut-off valve leakage monitor, fuel pump deliver line 91 between safety cut-off valve 1 and combustion furnace 8 is connected with monitoring pipeline 92, monitoring pipeline 92 is connected with flow sensor 4 and the first Long-distance Control stop valve 2 in turn, and flow sensor 4 and the first Long-distance Control stop valve 2 all signal are connected remote controllers 5.When combustion furnace 8 normally runs, remote controllers 5 control the first Long-distance Control stop valve 2 and are in closed condition, and the fuel in fuel pump deliver line 91 directly enters in combustion furnace 8 and carries out subsequent combustion process.When combustion furnace 8 carry out driving igniting, emergency or chain parking time, now safety cut-off valve 1 is closed, if the internal valve of safety cut-off valve 1 leaks, the fuel of leakage enters in combustion furnace 8 security incidents such as likely causing that burner hearth in combustion furnace 8 is blasted.Controlled by remote controllers 5, open the first long-range stop valve 2, the fuel leaked after testing pipeline 92 is responded to by flow sensor 4, flow process sensor 4 up-delivering signal is to remote controllers 5, the internal valve that remote controllers 5 place can show safety cut-off valve 1 leaks, and prompting maintenance personal carries out emergency processing.Monitoring pipeline 92 is connected with the first manual stop valve 3 between flow sensor 4 and safety cut-off valve 1.When needs change flow sensor 4, first Long-distance Control stop valve 2 and fuel recovery container 6, by closing the first manual stop valve 3, do not affect the normal operation of existing Fuel Furnace fuel system, realize the replacing of flow sensor 4, first Long-distance Control stop valve 2 and fuel recovery container 6.Monitoring pipeline 92 end is connected with fuel recovery container 6, collects the fuel of leakage in observation process, stops fuel leakage and pollutes external environment condition.Remote controllers 5 signal connects combustion furnace 8, the internal valve monitoring safety cut-off valve at flow sensor 4 leaks, flow sensor 4 up-delivering signal is to remote controllers 5, the switch of remote controllers 5 control combustion stove 8, such as forbid that staff lights a fire operation, occur to prevent the security incidents such as blast.Remote controllers 5 signal connects alarm 51, fuel pump deliver line 91 is provided with the second Long-distance Control stop valve 7 before safety cut-off valve 1, remote controllers 5 signal connects the second Long-distance Control stop valve 7, also or on fuel pump deliver line 91, be provided with the second manual stop valve (not indicating in accompanying drawing) before safety cut-off valve 1.The internal valve that flow sensor 4 monitors safety cut-off valve leaks, flow sensor 4 up-delivering signal is to remote controllers 5, remote controllers 5 control alarm 51 and report to the police, staff can be pointed out to close the second manual stop valve or control closedown second Long-distance Control stop valve 7 to close fuel system by remote controllers 5, preventing the security incidents such as blast from occurring.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (7)
1. a combustion furnace fuel system safety cut-off valve leakage monitor, it is characterized in that: the fuel pump deliver line between safety cut-off valve and combustion furnace is connected with monitoring pipeline, monitoring pipeline is connected with flow sensor and the first Long-distance Control stop valve in turn, and flow sensor and the first Long-distance Control stop valve all signal are connected remote controllers.
2. combustion furnace fuel system safety cut-off valve leakage monitor according to claim 1, is characterized in that: monitoring pipeline is connected with the first manual stop valve between flow sensor and safety cut-off valve.
3. according to the combustion furnace fuel system safety cut-off valve leakage monitor of claim 1 or 2, it is characterized in that: monitoring line end is connected with fuel recovery container.
4. combustion furnace fuel system safety cut-off valve leakage monitor according to claim 3, is characterized in that: remote controller signal connects combustion furnace.
5. combustion furnace fuel system safety cut-off valve leakage monitor according to claim 4, is characterized in that: remote controller signal connects alarm.
6. combustion furnace fuel system safety cut-off valve leakage monitor according to claim 5, it is characterized in that: fuel pump deliver line was provided with before safety cut-off valve the second Long-distance Control stop valve, remote controller signal connects the second Long-distance Control stop valve.
7. combustion furnace fuel system safety cut-off valve leakage monitor according to claim 5, is characterized in that: fuel pump deliver line was provided with before safety cut-off valve the second manual stop 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 |
Family
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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 |
Country Status (1)
| Country | Link |
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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 internal combustion engine gas leak checking device and method for same |
-
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 internal combustion engine gas leak checking device and method for same |
| 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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| RJ01 | Rejection of invention patent application after publication |