CN104021650A - Protection and alarm device for leakage of gas in marine engine room - Google Patents
Protection and alarm device for leakage of gas in marine engine room Download PDFInfo
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- CN104021650A CN104021650A CN201410249521.0A CN201410249521A CN104021650A CN 104021650 A CN104021650 A CN 104021650A CN 201410249521 A CN201410249521 A CN 201410249521A CN 104021650 A CN104021650 A CN 104021650A
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Abstract
The invention provides a protection and alarm device for leakage of gas in a marine engine room. The protection and alarm device for leakage of gas in the marine engine room structurally comprises the marine engine room, wherein a gas delivery pipe and an engine communicated with the gas delivery pipe are arranged in the marine engine room, the gas delivery pipe is sleeved with a closed ventilation pipeline, a certain gap is reserved between the inner side wall of the ventilation pipeline and the outer side wall of the gas delivery pipe, the ventilation pipeline sequentially comprises an air inlet section, a transition section and an air discharging section, a one-way air door used for ventilation from outside to inside is arranged at the position of an air inlet of the air inlet section, an exhaust fan is arranged at the position of an air outlet of the air discharging section, an air pressure sensor is arranged in the air discharging section, and gas concentration sensors are arranged in the air inlet section, the transition section and the air discharging section respectively. Compared with the prior art, the protection and alarm device for leakage of gas in the marine engine room has the advantages that prevention of leakage of gas in the marine engine room can be achieved, whether gas in the engine room is leaked is judged, an alarm is given when gas in the engine room is leaked, and the structure is safe and reliable.
Description
Technical field
The present invention relates to safety protection technique field, specifically the interior gas leakage protection alarming device of a kind of watercraft engine room simple in structure, that eliminate safe hidden trouble.
Background technology
Although world economy is still in fast development, science and technology is also in progress at full speed, the problem that the mankind face seems also to get more and more, the continuous deterioration of global climate, the approach exhaustion of fossil fuel, under these two significant problems, people have to look for effectively, the method of environmental protection, to solve a question at the front gradually, and all the more so for World Shipbuilding Industry.Because product oil price rises steadily, international pollution pact is increasingly strict, makes whole shipping industry have to seek new solution.LNG technology peculiar to vessel seems to have brought hope to us, and it is not only clean, and reserves are abundant, even also abundant than reserves, but existing single fuel LNG watercraft engine room does not also have special gas leakage security protection system.
The mono-fuel watercraft engine room of LNG is furnished with the equipment such as main frame, subsidiary engine, for boats and ships provide various power, is the place of a relatively-high temperature sealing, if combustion gas produces leakage in cabin, will bring very large potential safety hazard.In order to solve the gas leakage safety problem in the mono-fuel watercraft engine room of LNG, the invention provides the gas leakage safeguard alarm system in the mono-fuel watercraft engine room of a kind of LNG.
Summary of the invention
Technical assignment of the present invention is to solve the deficiencies in the prior art, provides that one is skillfully constructed, gas leakage protection alarming device in watercraft engine room.
Technical scheme of the present invention realizes in the following manner, gas leakage protection alarming device in a kind of watercraft engine room, its structure comprises watercraft engine room, the built-in gas supply pipe of this watercraft engine room, the engine being communicated with gas supply pipe, described gas supply pipe outside is socketed with the air pipeline of sealing, the lateral wall of this air pipeline madial wall and gas supply pipe leaves certain interval, described air pipeline order comprises wind inlet section, transition section and exhaustion section, wherein the air inlet place of wind inlet section is provided with the unidirectional air door of ecto-entad conducting, exit at exhaustion section is provided with air exhauster, in this exhaustion section, be also provided with wind pressure sensor, at above-mentioned wind inlet section, in transition section and exhaustion section, be provided with gas concentration sensor.
In technique scheme, if air exhauster ensures pipeline inflammable gas, leakage can be pumped timely to outside atmosphere; Near the wind pressure sensor arranging air exhauster detects blast around, judges air exhauster operational situation, and transmits in real time relevant blast and detect information to staff; The gas arranging in guarantee air trunking of unidirectional air door can only flow from Nei Xiang cabin, cabin, if the combustion gas of revealing while preventing air exhauster fault enters cabin simultaneously; Can be used for detecting the concentration of position combustion gas at the gas concentration sensor of wind inlet section, transition section and exhaustion section setting, and then make staff detect in real time the gas condition of air pipeline inside, to detect as early as possible the gas supply pipe ging wrong, maintain easily.
As preferably, described wind inlet section, transition section are all three fixing, movable open rectangular-shaped of one side; Exhaustion section is round tubular with transition section seamless link.Wind inlet section in this technical scheme, three faces of transition section are fixed in watercraft engine room, and active face is transparent detachable shape, are convenient to change dismounting part and observe instrument parameter, and circular exhaustion section can ensure the sealing of bulkhead.
The beneficial effect that the present invention compared with prior art produced is:
In a kind of watercraft engine room of the present invention gas leakage protection alarming device have simple in structure, easy to use, be skillfully constructed, the feature such as reasonable in design, can protect combustion gas cabin fuel gas pipeline leakage, judge whether cabin combustion gas has leakage, and report to the police in the time of the gas leakage of cabin, structural safety is reliable, practical, applied widely, be easy to promote.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present invention.
Mark in accompanying drawing represents respectively:
1, watercraft engine room, 2, engine, 3, gas supply pipe, 4, unidirectional air door, 5, concentration sensor, 6, wind inlet section, 7, transition section, 8, exhaustion section, 9, wind pressure sensor, 10, air exhauster.
Embodiment
Below in conjunction with accompanying drawing, gas leakage protection alarming device in a kind of watercraft engine room of the present invention is described in detail below.
As shown in Figure 1, gas leakage protection alarming device in a kind of watercraft engine room, its structure comprises watercraft engine room 1, the built-in gas supply pipe 3 of this watercraft engine room 1, the engine 2 being communicated with gas supply pipe 3, described gas supply pipe 3 outsides are socketed with the air pipeline of sealing, ensure that gas can only flow from Nei Xiang cabin, cabin, if the combustion gas of revealing while preventing air exhauster 10 fault enters cabin simultaneously, the lateral wall of this air pipeline madial wall and gas supply pipe 3 leaves certain interval, described air pipeline order comprises wind inlet section 6, transition section 7 and exhaustion section 8, wherein the air inlet place of wind inlet section 6 is provided with the unidirectional air door 4 of ecto-entad conducting, be provided with air exhauster 10 in the exit of exhaustion section 8, in this exhaustion section 8, be also provided with wind pressure sensor 9, at above-mentioned wind inlet section 6, in transition section 7 and exhaustion section 8, be provided with gas concentration sensor 5, different parts in this cabin arranges multiple concentration sensors 5, detect the concentration of combustion gas, in the time that gas concentration reaches 20%LEL, the sense of hearing of gas leakage and visual alarm in there is corresponding cabin pulpit, in the time that combustable gas concentration reaches 40%LEL, main gas valve and engine gas porch solenoid valve move simultaneously, stop air feed.
In the time of host work, air exhauster 10 turns round constantly, guarantees generation negative pressure in air trunking, near the wind pressure sensor 9 arranging air exhauster 10, detects blast around, judges air exhauster operational situation, if air exhauster 10 breaks down, there is the sense of hearing and the visual alarm of corresponding air exhauster 10 faults in pulpit; If fuel gas pipeline leakage, ensures that the combustion gas of revealing is by pumping in the atmosphere to cabin constantly.
Described wind inlet section 6, transition section 7 are all three fixing, movable open rectangular-shaped of one side; Exhaustion section 8 is round tubular with transition section 7 seamless links.
In the time of engine 2 non-normal stop, storage tank drain pipe quick action emergency valve, main gas valve and engine gas porch solenoid valve auto-action, stop air feed, and send the sense of hearing and the visual alarm of engine non-normal stop in pulpit.
The wind pressure sensor 9, the concentration sensor 5 that in this invention, relate to are sensor conventional in prior art, and transmission and the display mode of its connected mode, warning information do not repeat them here.
Finally should be noted that; above content is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although this embodiment part has been done to explain to the present invention; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (3)
1. gas leakage protection alarming device in a watercraft engine room, its structure comprises watercraft engine room, the built-in gas supply pipe of this watercraft engine room, the engine being communicated with gas supply pipe, it is characterized in that: described gas supply pipe outside is socketed with the air pipeline of sealing, the lateral wall of this air pipeline madial wall and gas supply pipe leaves certain interval, described air pipeline order comprises wind inlet section, transition section and exhaustion section, wherein the air inlet place of wind inlet section is provided with the unidirectional air door of ecto-entad conducting, exit at exhaustion section is provided with air exhauster, in this exhaustion section, be also provided with wind pressure sensor, in above-mentioned air pipeline, be provided with gas concentration sensor.
2. gas leakage protection alarming device in a kind of watercraft engine room according to claim 1, is characterized in that: described gas concentration sensor is separately positioned in wind inlet section, transition section and exhaustion section.
3. gas leakage protection alarming device in a kind of watercraft engine room according to claim 1, is characterized in that: described wind inlet section, transition section are all three fixing, movable open rectangular-shaped of one side; Exhaustion section is round tubular with transition section seamless link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249521.0A CN104021650A (en) | 2014-06-09 | 2014-06-09 | Protection and alarm device for leakage of gas in marine engine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249521.0A CN104021650A (en) | 2014-06-09 | 2014-06-09 | Protection and alarm device for leakage of gas in marine engine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104021650A true CN104021650A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410249521.0A Pending CN104021650A (en) | 2014-06-09 | 2014-06-09 | Protection and alarm device for leakage of gas in marine engine room |
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| CN (1) | CN104021650A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608847A (en) * | 2015-12-23 | 2016-05-25 | 江苏现代造船技术有限公司 | Inland river dual fuel power-driven vessel security control system |
| CN110505999A (en) * | 2017-04-07 | 2019-11-26 | 三菱造船株式会社 | Ship |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203966298U (en) * | 2014-06-09 | 2014-11-26 | 山东航宇船业集团有限公司 | Gas leakage protection alarming device in a kind of watercraft engine room |
-
2014
- 2014-06-09 CN CN201410249521.0A patent/CN104021650A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203966298U (en) * | 2014-06-09 | 2014-11-26 | 山东航宇船业集团有限公司 | Gas leakage protection alarming device in a kind of watercraft engine room |
Non-Patent Citations (1)
| Title |
|---|
| 李岳洋 等: "柴油-LNG双燃料动力船舶气体燃料系统设计", 《江苏船舶》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608847A (en) * | 2015-12-23 | 2016-05-25 | 江苏现代造船技术有限公司 | Inland river dual fuel power-driven vessel security control system |
| CN105608847B (en) * | 2015-12-23 | 2019-01-18 | 江苏现代造船技术有限公司 | A kind of inland river double fuel Power Vessel security control system |
| CN110505999A (en) * | 2017-04-07 | 2019-11-26 | 三菱造船株式会社 | Ship |
| CN110505999B (en) * | 2017-04-07 | 2022-07-08 | 三菱造船株式会社 | Ship with a detachable cover |
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Application publication date: 20140903 |
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| WD01 | Invention patent application deemed withdrawn after publication |