CN104235606A - Liquefied natural gas heating and gasifying device - Google Patents
Liquefied natural gas heating and gasifying device Download PDFInfo
- Publication number
- CN104235606A CN104235606A CN201410336892.2A CN201410336892A CN104235606A CN 104235606 A CN104235606 A CN 104235606A CN 201410336892 A CN201410336892 A CN 201410336892A CN 104235606 A CN104235606 A CN 104235606A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- flue gas
- liquefied natural
- natural gas
- gasifying device
- 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.)
- Pending
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a liquefied natural gas heating and gasifying device. The problems that the conventional liquefied natural gas gasifying device is restricted by environmental temperature by taking seawater or air as a heat source, the load is difficult to regulate and the occupied area is large are mainly solved. The liquefied natural gas heating and gasifying device is characterized in that a burner (2) is arranged in a concrete tank (6); an inlet end of the burner (2) is positioned above the concrete tank (6); an outlet end of the burner (2) is connected with a flue gas distributor (3); a heat exchanger cofferdam (5) is arranged on one side of the burner (2) inside the concrete tank (6); a heat exchanger (4) is arranged inside the heat exchanger cofferdam (5); and the heat exchanger (4) corresponds to the position of the flue gas distributor (3) on the lower part. According to the liquefied natural gas heating and gasifying device, internal combustion gas of a receiving station is utilized as fuel, and the device is high in efficiency, rapid in load regulation and small in occupied area.
Description
Technical field
The present invention relates to Oilfield Natural Gas Plant field, specifically a kind of LNG Liquefied natural gas heating and gasifying device.
Background technique
In recent years, the development of China to LNG Liquefied natural gas industry is more and more paid attention to, and just builds LNG Liquefied natural gas receiving station project in planning and implementation coastal area.No matter be domestic gas or industrial gas in the receiving station, always LNG Liquefied natural gas will gasify and could use after returning to normal temperature.Current gasification installation mostly is and adopts seawater or air to carry out heating and gasifying as thermal source to LNG Liquefied natural gas, and comparatively large by ambient temperature restriction, load not easily regulates, and disposablely has high input, and floor space is large.
Summary of the invention
First seawater or air is adopted to be subject to as thermal source the deficiency that ambient temperature restricts, load not easily regulates, floor space is large in order to overcome existing liquefied natural gas gasifying device, the invention provides a kind of LNG Liquefied natural gas heating and gasifying device, this LNG Liquefied natural gas heating and gasifying device utilizes in receiving station that combustion gas is as fuel, and efficiency is high, Load Regulation is rapid, floor space is little.
Technological scheme of the present invention is: a kind of LNG Liquefied natural gas heating and gasifying device, comprise concrete sump, liquid is filled with in concrete sump, also burner is equipped with in described concrete sump, the entrance point of burner is positioned at above concrete sump, and the outlet end of burner is connected with flue gas distributor, and the side of concrete sump inner burner is also equipped with heat exchanger cofferdam, inside, heat exchanger cofferdam is equipped with heat exchanger, and heat exchanger is corresponding with the flue gas distributor position of its underpart.
Described flue gas distributor comprises flue gas house steward and flue gas distribution piping, wherein flue gas house steward one end is connected with burner outlet, the other end is by baffle plate shutoff, flue gas distribution piping is made up of some Stainless Steel Tubes, chain intermittent weld is in flue gas house steward side, and every root flue gas distribution piping top has at least two row spray-holes.
The center line of described spray-hole becomes 25 °-35 ° with Vertical direction.
Described heat exchanger comprises heat exchanger intake header, heat exchanging tube and heat exchanger exit house steward, the described heat exchanger cofferdam inwall corresponding to heat exchanger intake header is fixed with baffle plate and lower pedal, the longitudinal cross-section of baffle plate is trapezoidal, and wherein base plate is inclined upwardly, and top board is downward-sloping.
In described flue gas distribution piping and top heat exchanger, heat exchanging tube spacing is bottom 150mm-400mm, and two described row spray-hole interlaced arrangement, the center line of two row spray-holes is all positioned at heat exchanging tube gap location.
Described heat exchanger cofferdam inwall and the gap of heat exchanger are less than heat exchanging tube diameter.
The present invention has following beneficial effect: owing to taking such scheme, and in this gasification installation employing receiving station, combustion gas is as fuel, and efficiency is high, Load Regulation is rapid, floor space is little.Meanwhile, flue gas distributor is positioned at the below of heat exchanging tube, flue gas distribution piping has some upper spray-holes, can reasonable distribution flue gas, avoids amount of localized heat not enough; On the inwall of heat exchanger cofferdam, corresponding heat exchanger intake header place is fixed with baffle plate, can strengthen Local Heat Transfer, ensures that deathtrap does not freeze; In concrete sump, be full of water, by improving water circulation, set up and stablizing water-bath flow field, temperature field, ensure that the stable of heat exchange carries out.And this device heat transfer process carries out in concrete sump, influenced by ambient temperature little.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation that heat exchanger house steward locates cofferdam;
Fig. 3 is the structural representation of flue gas distributor;
Fig. 4 is the sectional drawing of flue gas distribution piping;
Fig. 5,6 is the position view of flue gas distribution piping and heat exchanging tube;
Fig. 7 is the schematic diagram of heat exchanger device;
Fig. 8 is F direction view in Fig. 7.
1-blower in figure, 2-burner, 3-flue gas distributor, 4-heat exchanger, 5-heat exchanger cofferdam, 6-concrete sump, 7-chimney, 8-flow-off, 9-firing chamber, 301-flue gas house steward, 302-flue gas distribution piping, 303-spray-hole, 401-heat exchanger intake header, 402-heat exchanging tube, 403-heat exchanger exit house steward, 501-baffle plate, 502-lower pedal.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
By shown in Fig. 1 to Fig. 8, a kind of LNG Liquefied natural gas heating and gasifying device, comprises concrete sump 6, is filled with liquid in concrete sump 6, and this liquid is purified water, forms water-bath.Pool wall is provided with flow-off 8, can regulate height of water level in concrete sump, and Chi Ding lays steel structure deck, avoids pollutant to enter water-bath.Described concrete sump 6 is built-in with burner 2, and the entrance point of burner 2 is positioned at above concrete sump 6, and end higher than the water surface, and is connected with blower 1, and the outlet end of burner 2 is arranged in water-bath, and outlet end is connected with flue gas distributor 3.The side of concrete sump 6 inner burner 2 is also equipped with heat exchanger cofferdam 5, and heat exchanger cofferdam 5 is surrounded by corrosion resistant plate, and top and the bottom are uncovered, and inside and outside making heat exchanger cofferdam 5, water-bath communicates.Inside, heat exchanger cofferdam 5 is equipped with heat exchanger 4, and heat exchanger 4 is corresponding with flue gas distributor 3 position of its underpart, during plant running, in heat exchanger cofferdam 5, water-bath raises under flue gas promotes, heat exchanger 4 submerges, and produces overflow at top, heat exchanger cofferdam 5, forms water circulation.Meanwhile, described heat exchanger cofferdam 5 inwall and the gap of heat exchanger 4 are less than heat exchanging tube 402 diameter and avoid flue gas short circuit.
Shown in, described heat exchanger 4 comprises heat exchanger intake header 401, heat exchanging tube 402 and heat exchanger exit house steward 403, stainless steel pipe is all adopted to make, described heat exchanger intake header 401 is positioned at bottom, heat exchanger exit house steward 403 is positioned at top, makes low-temperature region integrated distribution in the bottom of heat exchanger, close to water-bath high-temperature area, heat is abundant, not-easy-to-freeze.And heat exchanger intake header 401 is provided with sealing vibration damping equipment at concrete sump 6 deck place punch position.In order to ensure water-bath and the abundant heat exchange of heat exchanger pipe bundle, heat exchanging tube 402 is made up of many Stainless Steel Tubes, and two ends connect heat exchanger intake header 401 and heat exchanger exit house steward 403 respectively, adopts stagger arrangement solid matter horizontal reciprocating arrangement (as Fig. 7, Fig. 8).In figure, solid line is A row heat exchanging tubes, A row two heat exchanging tubes are snakelike parallel in same plane, dotted line is B row heat exchanging tubes, B row two heat exchanging tubes are snakelike parallel in same plane, simultaneously A, B two row heat exchanging tube alternately arrange in the horizontal direction, horizontal equivalent L should control at 30 ~ 50mm, and short transverse is staggeredly arranged, and the height H that staggers should be 30 ~ 70mm.Heat exchanging tube adopts Stainless Steel Tube clod wash to make, and external diameter is 30 ~ 60mm, and wall thickness is 2 ~ 8mm, limits by the mechanical property of materials and technique, heat exchanging tube bending radius >=30mm.Heat exchanger pipe bundle is fixed by travelling cradle, and suspension bracket can make heat exchanging tube free shrink vertically.The heat exchange tube structure of this structure is tight, high-temperature flue gas is constantly clashed into heat exchanging tube in uphill process, splits into smaller bubble, increase the heat exchange area in flue gas and the external world.
Heat exchanger cofferdam 5 inwall corresponding to heat exchanger intake header 401 is fixed with baffle plate 501, the longitudinal cross-section of baffle plate 501 is trapezoidal, wherein base plate is inclined upwardly away from inwall one end, cofferdam, top board is downward-sloping away from inwall one end, cofferdam, heat transfer space can be reduced like this, effectively utilize flue gas, baffle plate top is open design, cofferdam overflow water enters cavity inside baffle plate by the gap by opening wide, then flow into baffle plate 501 by the hole of baffle plate bottom, heat transfer space that heat exchanger intake header 401, lower pedal 502, cofferdam wallboard are formed.By changing baffle plate lower dimension, adjustable range A, B, change the space size of heat exchanger intake header 401 left-half, to ensure that heat that overflow water provides can make this space bath temperature maintain above freezing.
As shown in Figures 3 to 6, described flue gas distributor 3 comprises flue gas house steward 301 and flue gas distribution piping 302, stainless pipe is all adopted to make, wherein flue gas house steward 301 one end exports with burner 2 and is connected, the other end is by baffle plate shutoff, flue gas distribution piping 302 is made up of some Stainless Steel Tubes, chain intermittent weld is in flue gas house steward 301 side, and every root flue gas distribution piping 302 top has at least two row spray-holes 303, for the flue gas avoiding spray-hole 303 to spray interferes with each other, the level interval a between adjacent flue gas distribution piping 302 is 200mm-400mm.The cross section of flue gas distribution piping 302 is long-round-shape, and spray-hole 303 is driveed at circular arc place, top, and two row spray-hole 303 interlaced arrangement, the center line of spray-hole 303 is positioned at the gap location of adjacent two heat exchanging tubes 402, and becomes 25 °-35 ° with Vertical direction.In described flue gas distribution piping 302 and top heat exchanger 4, heat exchanging tube spacing b is bottom 150mm-400mm.
When gasifying to LNG Liquefied natural gas, by blower 1, pressurized air is produced high-temperature flue gas with fuel gas mixed combustion in the firing chamber 9 of burner 2, high-temperature flue gas enters the flue gas house steward 301 of flue gas distributor 3, ejected by the spray-hole 303 on flue gas distribution piping 302, enter heat exchanger cofferdam 5, stir water-bath in cofferdam, form the hot mixture of flue gas and water.LNG Liquefied natural gas enters in heat exchanger by heat exchanger intake header 401, carry out heat exchange with the hot mixture of the gas-water in heat exchanger cofferdam 5, form gaseous natural gas, discharged by heat exchanger exit house steward 403, after heat exchange, flue gas and steam are discharged by chimney 7, enter air.In heat exchanger cofferdam 5, water-bath is under smoke power effect, forms water circulation, ensures that the stable of heat exchange carries out.
Claims (7)
1. a LNG Liquefied natural gas heating and gasifying device, comprise concrete sump (6), concrete sump is filled with liquid in (6), it is characterized in that: described concrete sump (6) is built-in with burner (2), the entrance point of burner (2) is positioned at concrete sump (6) top, the outlet end of burner (2) is connected with flue gas distributor (3), the side of concrete sump (6) inner burner (2) is also equipped with heat exchanger cofferdam (5), heat exchanger cofferdam (5) inside is equipped with heat exchanger (4), and heat exchanger (4) is corresponding with flue gas distributor (3) position of its underpart.
2. LNG Liquefied natural gas heating and gasifying device according to claim 1, it is characterized in that: described flue gas distributor (3) comprises flue gas house steward (301) and flue gas distribution piping (302), wherein flue gas house steward (301) one end exports with burner (2) and is connected, the other end is by baffle plate shutoff, flue gas distribution piping (302) is made up of some Stainless Steel Tubes, chain intermittent weld is in flue gas house steward (301) side, and every root flue gas distribution piping (302) top has at least two row spray-holes (303).
3. LNG Liquefied natural gas heating and gasifying device according to claim 2, is characterized in that: the center line of described spray-hole (303) becomes 25 °-35 ° with Vertical direction.
4. the LNG Liquefied natural gas heating and gasifying device according to Claims 2 or 3, it is characterized in that: described heat exchanger (4) comprises heat exchanger intake header (401), heat exchanging tube (402) and heat exchanger exit house steward (403), described heat exchanger cofferdam (5) inwall corresponding to heat exchanger intake header (401) is fixed with baffle plate (501) and lower pedal (502), the longitudinal cross-section of baffle plate (501) is trapezoidal, wherein base plate is inclined upwardly, and top board is downward-sloping.
5. LNG Liquefied natural gas heating and gasifying device according to claim 4, it is characterized in that: in described flue gas distribution piping (302) and top heat exchanger (4), heat exchanging tube spacing is bottom 150mm-400mm, two described row spray-hole (303) interlaced arrangement, the center line of two row spray-holes (303) is all positioned at heat exchanging tube (402) gap location.
6. LNG Liquefied natural gas heating and gasifying device according to claim 5, is characterized in that: described heat exchanger cofferdam (5) inwall and the gap of heat exchanger (4) are less than heat exchanging tube (402) diameter.
7. LNG Liquefied natural gas heating and gasifying device according to claim 6, it is characterized in that: described heat exchanging tube (402) adopts stagger arrangement solid matter horizontal reciprocating arrangement, be divided into A, B two row, A, B two row heat exchanging tubes are snakelike parallel in same plane respectively, simultaneously A, B two row heat exchanging tube alternately arrange in the horizontal direction, horizontal equivalent L is 30 ~ 50mm, short transverse is staggeredly arranged, the height H that staggers is 30 ~ 70mm, heat exchanging tube (402) adopts Stainless Steel Tube clod wash to make, external diameter is 30 ~ 60mm, and wall thickness is 2 ~ 8mm, heat exchanging tube bending radius >=30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336892.2A CN104235606A (en) | 2014-07-15 | 2014-07-15 | Liquefied natural gas heating and gasifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336892.2A CN104235606A (en) | 2014-07-15 | 2014-07-15 | Liquefied natural gas heating and gasifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235606A true CN104235606A (en) | 2014-12-24 |
Family
ID=52224239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410336892.2A Pending CN104235606A (en) | 2014-07-15 | 2014-07-15 | Liquefied natural gas heating and gasifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235606A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156882A (en) * | 2015-09-22 | 2015-12-16 | 江苏中圣压力容器装备制造有限公司 | Energy-saving type submerged combustion gasifier |
| CN108266638A (en) * | 2018-01-16 | 2018-07-10 | 中科睿凌江苏低温设备有限公司 | Liquefied natural gas gasifying re-heat integrated device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006078515A2 (en) * | 2005-01-18 | 2006-07-27 | Selas Fluid Processing Corporation | System and method for vaporizing a cryogenic liquid |
| CN101688641A (en) * | 2007-02-16 | 2010-03-31 | 塞拉斯流体工艺设计公司 | The device and the process that are used for submerged combustion/ambient air liquefied natural gas vaporization |
| JP5156929B2 (en) * | 2007-08-29 | 2013-03-06 | 住友精密工業株式会社 | Cryogenic fluid heating / vaporizing device and operation method thereof |
| CN203322726U (en) * | 2013-07-02 | 2013-12-04 | 宁波中能连通机械有限公司 | Immersed gasification device |
| CN103629693A (en) * | 2013-12-02 | 2014-03-12 | 北京市燃气集团有限责任公司 | Control system and control method of LNG immersion combustion gasifier |
| CN204042420U (en) * | 2014-07-15 | 2014-12-24 | 中国石油集团渤海石油装备制造有限公司 | LNG Liquefied natural gas heating and gasifying device |
-
2014
- 2014-07-15 CN CN201410336892.2A patent/CN104235606A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006078515A2 (en) * | 2005-01-18 | 2006-07-27 | Selas Fluid Processing Corporation | System and method for vaporizing a cryogenic liquid |
| WO2006078515A3 (en) * | 2005-01-18 | 2007-10-25 | Selas Fluid Proc Corp | System and method for vaporizing a cryogenic liquid |
| CN101688641A (en) * | 2007-02-16 | 2010-03-31 | 塞拉斯流体工艺设计公司 | The device and the process that are used for submerged combustion/ambient air liquefied natural gas vaporization |
| JP5156929B2 (en) * | 2007-08-29 | 2013-03-06 | 住友精密工業株式会社 | Cryogenic fluid heating / vaporizing device and operation method thereof |
| CN203322726U (en) * | 2013-07-02 | 2013-12-04 | 宁波中能连通机械有限公司 | Immersed gasification device |
| CN103629693A (en) * | 2013-12-02 | 2014-03-12 | 北京市燃气集团有限责任公司 | Control system and control method of LNG immersion combustion gasifier |
| CN204042420U (en) * | 2014-07-15 | 2014-12-24 | 中国石油集团渤海石油装备制造有限公司 | LNG Liquefied natural gas heating and gasifying device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156882A (en) * | 2015-09-22 | 2015-12-16 | 江苏中圣压力容器装备制造有限公司 | Energy-saving type submerged combustion gasifier |
| CN105156882B (en) * | 2015-09-22 | 2017-03-22 | 江苏中圣压力容器装备制造有限公司 | Energy-saving type submerged combustion gasifier |
| CN108266638A (en) * | 2018-01-16 | 2018-07-10 | 中科睿凌江苏低温设备有限公司 | Liquefied natural gas gasifying re-heat integrated device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105156882B (en) | Energy-saving type submerged combustion gasifier | |
| CN204824754U (en) | Gasification equipment | |
| CN101476015B (en) | AOD converter flue gas waste heat recovery apparatus | |
| CN104235606A (en) | Liquefied natural gas heating and gasifying device | |
| CN204042420U (en) | LNG Liquefied natural gas heating and gasifying device | |
| CN203322726U (en) | Immersed gasification device | |
| CN103322406A (en) | Immersed gasification device | |
| CN203836922U (en) | Waste heat recycling equipment applied to coal gasification device | |
| CN201636832U (en) | Exhaust heat boiler of electric steelmaking furnace | |
| CN203454081U (en) | Vertical type carbon waste heat boiler | |
| CN203115956U (en) | Three-dimensional steam boiler for boat | |
| CN201459177U (en) | Gas gasifying and cooling flue of revolving furnace | |
| CN204630028U (en) | Inner bag biomass boiler | |
| CN202125941U (en) | Horizontal backfire coal burning boiler with double-layer water pipe grate | |
| CN202747310U (en) | Vapor generator with automatic deoxidization device | |
| CN102287802A (en) | Gas steam generator | |
| CN206338933U (en) | External scaling fire-tube type normal-pressure hot-water boiler | |
| CN216345386U (en) | Submerged combustion type gasifier with anti-surge demisting device | |
| CN103307624A (en) | Scale-free direct-current gas boiler for heat pipe heat setting pool provided with double coils and furnace flue | |
| CN2901155Y (en) | Energy saving furnace | |
| CN200965355Y (en) | Vacuum tube transversely-placed solar energy water heater | |
| CN203744527U (en) | Pipe-bundle-type boiler | |
| CN203464241U (en) | Bare tube type fractional waste heat recovery coal economizer | |
| CN205717141U (en) | A kind of Quick heating type boiler | |
| CN103486565A (en) | Light tube type graded waste heat recycling economizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141224 |