CN102997038A - Central gas supply system of LNG (Liquefied Natural Gas) vaporizing station - Google Patents
Central gas supply system of LNG (Liquefied Natural Gas) vaporizing station Download PDFInfo
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- CN102997038A CN102997038A CN2012105094472A CN201210509447A CN102997038A CN 102997038 A CN102997038 A CN 102997038A CN 2012105094472 A CN2012105094472 A CN 2012105094472A CN 201210509447 A CN201210509447 A CN 201210509447A CN 102997038 A CN102997038 A CN 102997038A
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Abstract
The invention discloses a central gas supply system of an LNG (Liquefied Natural Gas) vaporizing station. A regulating-metering odorization crowbar is internally provided with an LNG pressure regulating pipeline system, an anti-explosion electrical cabinet and an LNG odorization system. The central gas supply system is characterized in that the regulating-metering odorization crowbar is also internally provided with an electric heating tower, a horizontal gas pipe is arranged at the top of the electric heating tower, the LNG pressure regulating pipeline system is distributed on the horizontal gas pipe, and the anti-explosion electrical cabinet and the LNG odorization system are arranged below the LNG pressure regulating pipeline system in parallel. According to the central gas supply system, an integral skid-mounting structure can be effectively integrated, the floor space of a whole skid-mounted body can be reduced, the stability of the integral skid-mounting structure can be improved, and thus the integral skid-mounting structure can meet the requirements on long-distance transportation of a trailer. In addition, the floor space in site is reduced, and the equipment maintenance is facilitated.
Description
Technical field
The present invention relates to a kind of LNG air supply system, specifically, relate in particular to a kind of LNG Vaporizing Station central gas supply system.
Background technique
In the LNG air supply system, the skid technology is widely used, a LNG air supply system roughly is divided into unloading deck standard sled, LNG low-temperature storage tank sled, storage tank pressurization control sledge, pressure regulation metering and adds smelly sled, and wherein LNG low-temperature storage tank sled, storage tank pressurization control sledge can be that multi-set parallel is arranged.Producer welds some rectangular frames at production site with channel-section steel or I-steel, and these rectangular frames more as required, are welded and fixed different equipment at base as the base of these skids, form corresponding skid.Transporting skid to the use scene with trailer at last assembles.Also have producer to carry out the sausage welding assembly at the use scene, owing to do not adopt modularized production mode, corresponding cost of production is just too high.
Wherein pressure regulation metering adds and is furnished with LNG pressure regulation pipe-line system, explosion-proof electric control cubicle and LNG in the smelly sled and adds smelly system, and it is regional also to be furnished with BOG zone and EAG, and an equipment or one group of pipe net arrangement are in a zone, and the floor space of the whole skid that is is too huge.
The shortcoming of prior art is: the skid floor space is large, quality is high, be not easy to transportation, and pipeline is very many in the skid, and integrally-built stability also is difficult to deal with the requirement of long-distance transport.
Summary of the invention
The object of the invention is to provide a kind of LNG Vaporizing Station central gas supply system, and the overall structure of energy effective integration skid is dwindled the whole space of taking up an area of skid, simultaneously, improve the integrally-built stability of skid, can satisfy the requirement of trailer long-distance transport, simultaneously, reduce the floor space of using the scene.
For achieving the above object, the invention provides a kind of LNG Vaporizing Station central gas supply system, prized by the unloading deck standard, LNG low-temperature storage tank sled, storage tank pressurization control sledge, pressure regulation metering adds smelly sled and forms, wherein the LNG output pipe of unloading deck standard sled communicates with storage tank pressurization control sledge, the LNG pilot line Lu Zuyu LNG low-temperature storage tank sled of storage tank pressurization control sledge communicates, the LNG output pipe of storage tank pressurization control sledge adds smelly sled with pressure regulation metering and communicates, described pressure regulation metering adds and is provided with LNG pressure regulation pipe-line system in the smelly sled, explosion-proof electric control cubicle and LNG add smelly system, and its key is:
Described pressure regulation metering adds and also is provided with the electric heating tower in the smelly sled, the bottom of this electric heating tower is equipped with suction tude and communicates with described storage tank pressurization control sledge, the top of this electric heating tower is equipped with steam outlet pipe and communicates with a horizontal snorkel, described LNG pressure regulation pipeline system layout is on this horizontal snorkel, and described explosion-proof electric control cubicle and LNG add smelly system and be arranged side by side in this LNG pressure regulation pipe-line system below;
The bottom of described storage tank pressurization control sledge is the rectangular frame that channel-section steel is welded into, and the base of described electric heating tower is welded on this rectangular frame, and described explosion-proof electric control cubicle and LNG add smelly system and also be welded on this rectangular frame;
The column of described explosion-proof electric control cubicle cabinet is channel-section steel, and this column protrudes upward the cabinet top of explosion-proof electric control cubicle;
The column that described LNG adds smelly system shell is channel-section steel, and this column protrudes upward the top that LNG adds smelly system;
The welded top of described electric heating tower has column;
The top of all described columns all is welded with fixedly anchor ear mechanism of snorkel, and snorkel fixedly anchor ear mechanism secures the above horizontal snorkel;
Be welded with transverse tube between the adjacent upright posts, the column that adds between the smelly system at described explosion-proof electric control cubicle and LNG is welded with at least two transverse tubes, and column and transverse tube that described explosion-proof electric control cubicle and LNG add between the smelly system form cat ladder.
All columns, LNG tracheae, transverse tube interfix, and form a three-dimensional tubing string net, by this tubing string net, all devices in the skid are fixed together, and have improved on the whole the stability of skid.
Simultaneously, because cancellated fixation arranged, LNG pressure regulation pipe-line system can be added smelly system with explosion-proof electric control cubicle, LNG and carry out space overlap layout, the floor space of having dwindled skid.
Simultaneously, the cat ladder that utilizes transverse tube to form just can be realized detection and the maintenance of skid eminence equipment.
Described snorkel fixedly anchor ear mechanism comprises the channel-section steel bar of horizontal arrangement, this channel-section steel bar is welded on the described column, and channel-section steel bar upper end is fixed with heat insulation damping pad, and this heat insulation damping pad is rectangular block, heat insulation damping pad upper surface has circular-arc groove, is fixed with anchor ear on the heat insulation damping pad;
Have vertical through hole on the groove dike of described circular-arc groove both sides, described anchor ear is n shape, and two straight flanges of this anchor ear are screw rod, after two straight flanges are passed down through respectively described vertical through hole, is fixed on the described channel-section steel bar through nut.
By channel-section steel and n shape anchor ear pipeline is fixed, variable contact position is reduced to one, significantly improved Systems balanth and Security.
One side channel wall of described channel-section steel bar is welded on described column upper end, and the opposite side cell wall has via hole, after two straight flanges of described anchor ear pass this via hole, is set with described nut.
Only need two nuts, just can finish the fixing of one section pipeline, simplified assembly process.
Described heat insulation damping pad is glass fibre reinforced plastics or polyurethane foam.
At the leading portion of pipeline, need to guarantee the thermal insulation effect, heat insulation damping pad has improved the thermal insulation effect, and at the back segment of pipeline, heat insulation damping pad mainly plays damping effect.
After described horizontal snorkel adds smelly system through described LNG, be connected with downward vertically LNG snorkel through 90 degree bend pipes, this LNG snorkel adds the other horizontal bending of foul smell delivery port of smelly system at described LNG, on the LNG snorkel on this bending part side the foul smell delivery pipe is installed, this foul smell delivery pipe communicates with the delivery outlet that described LNG adds smelly system, and the described LNG snorkel after the horizontal bending is outwards carried and added smelly rear LNG combustion gas.
Adopt nearby principle to add smelly system with LNG and be connected, simultaneously, the delivery outlet position that LNG is added smelly system moves down, and reduces the equipment center of gravity, also is convenient to fast and safely be connected with the pipeline equipment in downstream.
Also be fixed with fixedly anchor ear mechanism of snorkel on described foul smell delivery pipe and the LNG snorkel, this snorkel fixedly anchor ear mechanism is welded on the described rectangular frame through channel steel upright post.
Described LNG adds on the column of smelly system and is fixed with horizontal columns, one end of this horizontal columns is welded on the column that described LNG adds smelly system, the other end of horizontal columns is welded with fixedly anchor ear mechanism of vertical snorkel, this vertical snorkel fixedly the structure of anchor ear mechanism fixedly the anchor ear mechanism structure is consistent with described snorkel, snorkel fixedly behind anchor ear mechanism integral-rotation 90 degree, just forms fixedly anchor ear mechanism of described vertical snorkel.
Vertical snorkel also is fixed, improves on the whole the stability of whole grid framework structure.
The invention has the beneficial effects as follows: the overall structure of energy effective integration skid, dwindle the whole space of taking up an area of skid, simultaneously, improve the integrally-built stability of skid, can satisfy the requirement of trailer long-distance transport, simultaneously, on-the-spot floor space is used in minimizing.Simultaneously, be convenient to the device maintenance inspection.
Description of drawings
Fig. 1 is the structured flowchart of LNG Vaporizing Station central gas supply system;
Fig. 2 is the fixedly structural representation of anchor ear mechanism of snorkel;
Fig. 3 is the frame relations figure that pressure regulation metering adds smelly sled.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Such as Fig. 1, shown in 3: a kind of LNG Vaporizing Station central gas supply system, by unloading deck standard sled 1, LNG low-temperature storage tank sled 2, storage tank pressurization control sledge 3, pressure regulation metering adds smelly sled 4 and forms, wherein the LNG output pipe of unloading deck standard sled 1 communicates with storage tank pressurization control sledge 3, the LNG pilot line Lu Zuyu LNG low-temperature storage tank sled 2 of storage tank pressurization control sledge 3 communicates, the LNG output pipe of storage tank pressurization control sledge 3 adds smelly sled 4 with pressure regulation metering and communicates, described pressure regulation metering adds in the smelly sled 4 and is provided with electric heating tower 5, LNG pressure regulation pipe-line system, explosion-proof electric control cubicle 6 and LNG add smelly system 7.
The bottom of electric heating tower 5 is equipped with suction tude 5a and communicates with described storage tank pressurization control sledge 3, the top of this electric heating tower 5 is equipped with steam outlet pipe 5b and communicates with a horizontal snorkel 14, be furnished with LNG pressure regulation pipe-line system on this horizontal snorkel 14, horizontal snorkel 14 passes through from the top that explosion-proof electric control cubicle 6 and LNG add smelly system 7 successively;
The bottom of described storage tank pressurization control sledge 3 is the rectangular frame 8 that channel-section steel is welded into, and the base of described electric heating tower 5 is welded on this rectangular frame 8, and described explosion-proof electric control cubicle 6 and LNG add smelly system 7 and also be welded on this rectangular frame 8;
The column of explosion-proof electric control cubicle 6 cabinets is channel-section steel, and this column protrudes upward the cabinet top of explosion-proof electric control cubicle 6;
The column that described LNG adds smelly system 7 shells is channel-section steel, and this column protrudes upward the top that LNG adds smelly system 7;
The welded top of described electric heating tower 5 has column;
As shown in Figure 2: the top of all columns all is welded with fixedly anchor ear mechanism of snorkel, and snorkel fixedly anchor ear mechanism secures the above horizontal snorkel 14;
Be welded with transverse tube between the adjacent upright posts, the column that adds between the smelly system 7 at described explosion-proof electric control cubicle 6 and LNG is welded with at least two transverse tubes, and column and transverse tube that described explosion-proof electric control cubicle 6 and LNG add between the smelly system 7 form cat ladder.
After described horizontal snorkel 14 adds smelly system 7 through LNG, be connected with downward vertically LNG snorkel through 90 degree bend pipes, this LNG snorkel adds the other horizontal bending of foul smell delivery port of smelly system 7 at described LNG, on the LNG snorkel on this bending part side foul smell delivery pipe 12 is installed, this foul smell delivery pipe 12 communicates with the delivery outlet that described LNG adds smelly system 7, and the described LNG snorkel after the horizontal bending is outwards carried and added smelly rear LNG combustion gas.
Also be fixed with fixedly anchor ear mechanism of snorkel on described foul smell delivery pipe 12 and the LNG snorkel, this snorkel fixedly anchor ear mechanism is welded on the described rectangular frame 8 through channel steel upright post.
Shown in Fig. 2,3: as described in LNG add on the column of smelly system 7 and be fixed with horizontal columns 13, one end of this horizontal columns 13 is welded on the column that described LNG adds smelly system 7, the other end of horizontal columns 13 is welded with fixedly anchor ear mechanism of vertical snorkel, this vertical snorkel fixedly the structure of anchor ear mechanism fixedly the anchor ear mechanism structure is consistent with described snorkel.
As shown in Figure 2: described snorkel fixedly anchor ear mechanism comprises the channel-section steel bar 9 of horizontal arrangement, this channel-section steel bar 9 is welded on the described column, channel-section steel bar 9 upper ends are fixed with heat insulation damping pad 10, this heat insulation damping pad 10 is rectangular block, heat insulation damping pad 10 upper surfaces have circular-arc groove, are fixed with anchor ear 11 on the heat insulation damping pad 10;
Have vertical through hole on the groove dike of described circular-arc groove both sides, described anchor ear 11 is n shape, and two straight flanges of this anchor ear 11 are screw rod, after two straight flanges are passed down through respectively described vertical through hole, is fixed on the described channel-section steel bar 9 through nut.
One side channel wall of described channel-section steel bar 9 is welded on described column upper end, and the opposite side cell wall has via hole, after two straight flanges of described anchor ear 11 pass this via hole, is set with described nut.
Described heat insulation damping pad 10 is glass fibre reinforced plastics or polyurethane foam.
The above only is preferred embodiment of the present invention; not in order to limit the present invention; all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc.; change angle steel or I-steel such as column, channel-section steel support into by channel-section steel, changing the anchor ear mode and be welding manner etc. all should be included within protection scope of the present invention.
Claims (7)
1. LNG Vaporizing Station central gas supply system, by unloading deck standard sled (1), LNG low-temperature storage tank sled (2), storage tank pressurization control sledge (3), pressure regulation metering adds smelly sled (4) and forms, wherein the LNG output pipe of unloading deck standard sled (1) communicates with storage tank pressurization control sledge (3), the LNG pilot line Lu Zuyu LNG low-temperature storage tank sled (2) of storage tank pressurization control sledge (3) communicates, the LNG output pipe of storage tank pressurization control sledge (3) adds smelly sled (4) with pressure regulation metering and communicates, described pressure regulation metering adds and is provided with LNG pressure regulation pipe-line system in the smelly sled (4), explosion-proof electric control cubicle (6) and LNG add smelly system (7), it is characterized in that:
Described pressure regulation metering adds and also is provided with electric heating tower (5) in the smelly sled (4), the bottom of this electric heating tower (5) is equipped with suction tude (5a) and communicates with described storage tank pressurization control sledge (3), the top of this electric heating tower (5) is equipped with steam outlet pipe (5b) and communicates with a horizontal snorkel (14), described LNG pressure regulation pipeline system layout is on this horizontal snorkel (14), and described explosion-proof electric control cubicle (6) and LNG add smelly system (7) and be arranged side by side in this LNG pressure regulation pipe-line system below;
The bottom of described storage tank pressurization control sledge (3) is the rectangular frame (8) that channel-section steel is welded into, the base of described electric heating tower (5) is welded on this rectangular frame (8), and described explosion-proof electric control cubicle (6) and LNG add smelly system (7) and also be welded on this rectangular frame (8);
The column of described explosion-proof electric control cubicle (6) cabinet is channel-section steel, and this column protrudes upward the cabinet top of explosion-proof electric control cubicle (6);
The column that described LNG adds smelly system (7) shell is channel-section steel, and this column protrudes upward the top that LNG adds smelly system (7);
The welded top of described electric heating tower (5) has column;
The top of all described columns all is welded with fixedly anchor ear mechanism of snorkel, and snorkel fixedly anchor ear mechanism secures the above horizontal snorkel (14);
Be welded with transverse tube between the adjacent upright posts, be positioned at the column that described explosion-proof electric control cubicle (6) and LNG add between the smelly system (7) and be welded with at least two transverse tubes, column and transverse tube that described explosion-proof electric control cubicle (6) and LNG add between the smelly system (7) form cat ladder.
2. LNG Vaporizing Station central gas supply system according to claim 1, it is characterized in that: described snorkel fixedly anchor ear mechanism comprises the channel-section steel bar (9) of horizontal arrangement, this channel-section steel bar (9) is welded on the described column, channel-section steel bar (9) upper end is fixed with heat insulation damping pad (10), this heat insulation damping pad (10) is rectangular block, heat insulation damping pad (10) upper surface has circular-arc groove, is fixed with anchor ear (11) on the heat insulation damping pad (10);
Have vertical through hole on the groove dike of described circular-arc groove both sides, described anchor ear (11) is n shape, two straight flanges of this anchor ear (11) are screw rod, after two straight flanges are passed down through respectively described vertical through hole, are fixed on the described channel-section steel bar (9) through nut.
3. LNG Vaporizing Station central gas supply system according to claim 2, it is characterized in that: a side channel wall of described channel-section steel bar (9) is welded on described column upper end, the opposite side cell wall has via hole, after two straight flanges of described anchor ear (11) pass this via hole, is set with described nut.
4. LNG Vaporizing Station central gas supply system according to claim 2, it is characterized in that: described heat insulation damping pad (10) is glass fibre reinforced plastics or polyurethane foam.
5. LNG Vaporizing Station central gas supply system according to claim 1, it is characterized in that: after described horizontal snorkel (14) adds smelly system (7) through described LNG, be connected with downward vertically LNG snorkel through 90 degree bend pipes, this LNG snorkel adds the other horizontal bending of foul smell delivery port of smelly system (7) at described LNG, on the LNG snorkel on this bending part side foul smell delivery pipe (12) is installed, this foul smell delivery pipe (12) communicates with the delivery outlet that described LNG adds smelly system (7), and the described LNG snorkel after the horizontal bending is outwards carried and added smelly rear LNG combustion gas.
6. according to claim 1 and 2 or 3 or 4 or 5 described LNG Vaporizing Station central gas supply systems, it is characterized in that: also be fixed with fixedly anchor ear mechanism of snorkel on described foul smell delivery pipe (12) and the LNG snorkel, this snorkel fixedly anchor ear mechanism is welded on the described rectangular frame (8) through channel steel upright post.
7. according to claim 2 or 5 described LNG Vaporizing Station central gas supply systems, it is characterized in that: described LNG adds on the column of smelly system (7) and is fixed with horizontal columns (13), one end of this horizontal columns (13) is welded on the column that described LNG adds smelly system (7), the other end of horizontal columns (13) is welded with fixedly anchor ear mechanism of vertical snorkel, this vertical snorkel fixedly the structure of anchor ear mechanism fixedly the anchor ear mechanism structure is consistent with described snorkel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509447.2A CN102997038B (en) | 2012-12-03 | 2012-12-03 | Central gas supply system of LNG (Liquefied Natural Gas) vaporizing station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509447.2A CN102997038B (en) | 2012-12-03 | 2012-12-03 | Central gas supply system of LNG (Liquefied Natural Gas) vaporizing station |
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| Publication Number | Publication Date |
|---|---|
| CN102997038A true CN102997038A (en) | 2013-03-27 |
| CN102997038B CN102997038B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210509447.2A Active CN102997038B (en) | 2012-12-03 | 2012-12-03 | Central gas supply system of LNG (Liquefied Natural Gas) vaporizing station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358998A (en) * | 2014-11-05 | 2015-02-18 | 中国海洋石油总公司 | Synergetic operating device with integration of inner pipelines and longitudinal maintenance ladders in LNG storage tank |
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| WO2009143165A1 (en) * | 2008-05-21 | 2009-11-26 | Raytheon Company | Isothermal gas supply and method for minimizing the temperature excursion of a gas mixture released therefrom |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104358998A (en) * | 2014-11-05 | 2015-02-18 | 中国海洋石油总公司 | Synergetic operating device with integration of inner pipelines and longitudinal maintenance ladders in LNG storage tank |
| CN104358998B (en) * | 2014-11-05 | 2016-04-13 | 中国海洋石油总公司 | LNG storage tank gut line equipment integrative coordinated with vertical maintenance ladder |
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| Publication number | Publication date |
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| CN102997038B (en) | 2014-08-06 |
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Address after: 402560 No. 186 longan Avenue, Dongcheng Street office, Tongliang District, Chongqing (Industrial Park) Patentee after: CHONGQING XINYU PRESSURE CONTAINER MANUFACTURE Co.,Ltd. Address before: 400036 Chongqing Shapingba District Shapingba Geleshan Xinxing Industrial Park Patentee before: CHONGQING XINYU PRESSURE CONTAINER MANUFACTURE Co.,Ltd. |
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Address after: 402560 No. 186 longan Avenue, Dongcheng Street office, Tongliang District, Chongqing (Industrial Park) Patentee after: Chongqing Xinyu Pressure Vessel Co.,Ltd. Address before: 402560 No. 186 longan Avenue, Dongcheng Street office, Tongliang District, Chongqing (Industrial Park) Patentee before: CHONGQING XINYU PRESSURE CONTAINER MANUFACTURE Co.,Ltd. |