CN204026130U - A kind of improved LNG central fluid vaporizer - Google Patents
A kind of improved LNG central fluid vaporizer Download PDFInfo
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- CN204026130U CN204026130U CN201420327893.6U CN201420327893U CN204026130U CN 204026130 U CN204026130 U CN 204026130U CN 201420327893 U CN201420327893 U CN 201420327893U CN 204026130 U CN204026130 U CN 204026130U
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- Prior art keywords
- lng
- seawater
- heat exchanger
- preheating
- heat
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- 239000006200 vaporizer Substances 0.000 title claims abstract description 24
- 239000012530 fluid Substances 0.000 title claims abstract description 23
- 239000013535 sea water Substances 0.000 claims abstract description 53
- 239000003381 stabilizer Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000003507 refrigerant Substances 0.000 claims abstract description 6
- 230000002787 reinforcement Effects 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 7
- 239000003949 liquefied natural gas Substances 0.000 description 93
- 238000000034 method Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a kind of LNG central fluid vaporizer of architecture advances, mainly by LNG Preheating unit and LNG heat-exchanger rig, formed, LNG Preheating unit comprises LNG baffle-box, in LNG baffle-box, be provided with the first buffer cavity and the second buffer cavity, the input end of the first buffer cavity is connected respectively LNG supplying tube and LNG preheating heat exchanger with output terminal, the input end of the second buffer cavity and output terminal are connected respectively the LNG input end of LNG preheating heat exchanger and LNG heat-exchanger rig, in the LNG of LNG heat-exchanger rig input end ingress, are provided with stabilizer structure; The input end of the first seawater heat exchanger and output terminal are communicated with respectively thermal source seawater and the first seawater buffer cavity, and the first seawater buffer cavity is communicated with the second seawater heat exchanger, and the second seawater heat exchanger is immersed in the liquid refrigerant of LNG preheating cabinet; Between the second seawater heat exchanger and LNG preheating heat exchanger, be provided with the reinforcement gusset of mechanical connection manner.
Description
Technical field
The utility model relates to a kind of vaporizer, especially a kind of LNG central fluid vaporizer of architecture advances.
Background technique
LNG central fluid vaporizer is the LNG Liquefied natural gas seawater vaporizer mainly using at present, and its main body mainly consists of three parts: seawater-LNG heat exchanging segment, intermediate heat transfer-seawater to make heat exchange section and intermediate heat transfer-LNG heat exchanging segment; Liquified natural gas LNG flow through intermediate heat transfer-LNG heat exchanging segment and seawater-LNG heat exchanging segment, in flow process respectively with vaporizer in central fluid and seawater to make heat exchange after be converted into gaseous natural gas and export through pipeline; As the seawater of thermal source flow through seawater-LNG heat exchanging segment and intermediate heat transfer-seawater to make heat exchange section, in flow process respectively with vaporizer in rock gas and central fluid heat exchange after flow out vaporizer.Utilize the method for two-part heat exchange, avoided saltouing and freezing of thermal source, improved heat exchange efficiency and vaporization efficency.
LNG intermediate fluid type carburetor is used titanium material to improve its corrosion resistance mostly; yet in traditional manufacturing process, welding process usually can be heated to more than 300 ℃; the easy oxidation deterioration of titanium at this temperature, has reduced the corrosion resistance of material, has shortened the working life of LNG central fluid vaporizer.
What each heat exchanging segment of existing LNG intermediate fluid type carburetor adopted is traditional means of fixation, and its part cylindrical shell need be installed two heat exchanging segments, and large easily distortion meets with stresses; When rock gas enters seawater-LNG heat exchanging segment heat exchanger impingement baffle, flow velocity is very fast, and fluid flow resistance is large, and the shake frequency certainly of heat exchanger is low, easily causes heat exchanger from shake, causes flow-disturbing and utters long and high-pitched sounds.
Model utility content
The purpose of this utility model is: the problem existing for above-mentioned prior art, propose a kind of can improve vaporizer meet with stresses, and can extension device the modified model LNG central fluid vaporizer in working life.
In order to reach above object, LNG central fluid vaporizer of the present utility model, mainly by the LNG Preheating unit being interconnected and these two-part of LNG heat-exchanger rig, formed, LNG Preheating unit comprises LNG baffle-box, the inner chamber of LNG baffle-box be provided with two independently chamber be respectively a LNG buffer cavity and the 2nd LNG buffer cavity, the input end of the one LNG buffer cavity and output terminal are connected respectively the input end of LNG supplying tube and LNG preheating heat exchanger, the input end of the 2nd LNG buffer cavity is connected respectively the output terminal of LNG preheating heat exchanger and the LNG input end of LNG heat-exchanger rig with output terminal, in the LNG of LNG heat-exchanger rig input end ingress, be provided with stabilizer structure, effectively increased the heat exchange area of the overheated heat exchanging segment E1 of seawater-LNG, reduced the flow velocity of rock gas at heat exchanger shell pass, improving heat exchanger reaches more than 3 times from shaking frequency, reduced the shake certainly of heat exchanger, thoroughly stopped flow-disturbing and uttered long and high-pitched sounds, stability and the vaporization heat exchange efficiency of heat exchanger have been promoted greatly, in LNG heat-exchanger rig, be penetrated with the first seawater heat exchanger, the input end of the first seawater heat exchanger and output terminal are communicated with respectively the entry end of thermal source seawater and the first seawater buffer cavity, the output terminal of the first seawater buffer cavity is communicated with the input end of the second seawater heat exchanger, the output terminal of the second seawater heat exchanger is communicated with seawater discharge pond, the second seawater heat exchanger and LNG preheating heat exchanger are all placed in LNG preheating cabinet, and wherein the second seawater heat exchanger is immersed in the liquid refrigerant of LNG preheating cabinet, between between the second seawater heat exchanger and LNG preheating heat exchanger, be separated with stiffening rib plate, increase stiffening rib plate structure and avoided the excessive distortion causing of housing stress, improved the stability of LNG central fluid vaporizer.
Preferred version of the present utility model is:
Further, stabilizer structure comprises baffle plate and rectification rod, and rectification rod is horizontal in the LNG of described LNG heat-exchanger rig input end ingress, and the two ends of rectification rod are separately fixed on the sidewall of baffle plate and LNG heat-exchanger rig.
Further, strengthen gusset and be detachably fixed on the sidewall of LNG preheating cabinet, can avoid so the too high titanium material oxidation causing of heat exchanger gusset welding temperature.
Further, strengthen gusset and be bolted on the sidewall of LNG preheating cabinet, between bolts and nuts, spot welding is reinforced.
The utility model beneficial effect is: 1. the former impingement baffle architecture advances of LNG heat-exchanger rig is stabilizer structure, effectively increased the heat exchange area of LNG heat-exchanger rig, reduced the flow velocity of rock gas at heat exchanger shell pass, improving heat exchanger reaches more than 3 times from shaking frequency, reduced the shake certainly of heat exchanger, thoroughly stopped flow-disturbing and uttered long and high-pitched sounds, having promoted greatly stability and the vaporization heat exchange efficiency of heat exchanger; 2. in LNG preheating cabinet, increase stiffening rib plate structure, avoided the excessive distortion causing of housing stress, improved the stability of LNG central fluid vaporizer; 3. reinforcing plate structure is that mechanical structure connects, and reduces the titanium plate oxidation that in welding process, heat causes, and has improved the corrosion resistance of LNG central fluid vaporizer, thereby has extended the working life of LNG central fluid vaporizer.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that Fig. 1 is along the sectional view of I-I;
Fig. 3 is the enlarged view of II in Fig. 1;
Fig. 4 is the enlarged view of III in Fig. 1.
The second seawater heat exchanger E1, LNG preheating heat exchanger E2, LNG heat-exchanger rig E3, the first seawater heat exchanger S1, LNG preheating cabinet S2, LNG baffle-box S3, thermal source seawater A1, the first seawater buffer cavity A2, seawater discharge pond 1, LNG supplying tube 2, the one LNG buffer cavity 3, the two LNG buffer cavitys 4, rectification rod 5, baffle plate 6, strengthens gusset 7, spot welding point 8.
Embodiment
Embodiment one
A kind of improved LNG central fluid vaporizer, as Figure 1-4, it is mainly comprised of LNG heat-exchanger rig E3 and LNG preheating cabinet S2, and the heat exchanger that the first seawater heat exchanger S1 and the second seawater heat exchanger E1 are used is tubular heat exchanger, and LNG preheating heat exchanger E2 is U-shaped heat exchange of heat pipe; The first seawater heat exchanger S1 is arranged in LNG heat-exchanger rig E3, and the second seawater heat exchanger E1 and LNG preheating heat exchanger E2 are arranged in LNG preheating cabinet S2; In LNG preheating cabinet S2, be filled with working medium, can in LNG preheating cabinet S2, freely liquefy and vaporize, liquid refrigerant is arranged in the seawater to make heat exchange of bottom, LNG preheating cabinet S2 space and the second seawater heat exchanger E1, liquid refrigerant heating becomes gaseous working medium, and gaseous working medium rises to the liquified natural gas LNG heat exchange in top, LNG preheating cabinet S2 space and LNG preheating heat exchanger E2; Thermal source seawater A1 is connected with LNG heat-exchanger rig E3 entry end; The first seawater buffer cavity A2 entry end is connected with LNG heat-exchanger rig E3 outlet end, and outlet end is connected with LNG preheating cabinet S2 entry end; Thermal source seawater A1 enters the first seawater heat exchanger S1 and heats its outside LNG rock gas, by the first seawater buffer cavity A2, enters the second seawater heat exchanger E1 heating liquid refrigerant in LNG preheating cabinet S2, then flows into water discharge pond 1; LNG Liquefied natural gas LNG enters LNG preheating heat exchanger E2 and gaseous working medium heat exchange by LNG supplying tube 2 from a LNG buffer cavity 3, after from the 2nd LNG buffer cavity 4, through pipeline, enter seawater to make heat exchange LNG heat-exchanger rig E3 and the first seawater heat exchanger S1, then flow out LNG central fluid vaporizer.
The supporting structure of LNG preheating cabinet S2 has increased stiffening rib plate structure, as shown in Fig. 2-Fig. 3, reinforcement gusset 7 is crossed mechanical connection and is fixed on the sidewall of LNG preheating cabinet, mechanical connection manner comprises that flange connects, is threaded, key connection, spline joint etc., preferably strengthen, on sidewall that gusset 7 is bolted on LNG preheating cabinet, between bolts and nuts, by spot welding point 8, reinforcing.
The LNG input end ingress of LNG heat-exchanger rig E3 is provided with stabilizer structure, as shown in Figure 4, stabilizer structure comprises baffle plate 6 and rectification rod 5, rectification rod 5 is horizontal in the LNG input end ingress of LNG heat-exchanger rig E3, and the two ends of rectification rod 5 are separately fixed on the sidewall of baffle plate 6 and LNG heat-exchanger rig E3.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (4)
1. an improved LNG central fluid vaporizer, mainly by the LNG Preheating unit being interconnected and these two-part of LNG heat-exchanger rig, formed, it is characterized in that: described LNG Preheating unit comprises LNG baffle-box, the inner chamber of described LNG baffle-box be provided with two independently chamber be respectively a LNG buffer cavity and the 2nd LNG buffer cavity, the input end of a described LNG buffer cavity and output terminal are connected respectively the input end of LNG supplying tube and LNG preheating heat exchanger, the input end of the 2nd LNG buffer cavity is connected respectively the output terminal of LNG preheating heat exchanger and the LNG input end of LNG heat-exchanger rig with output terminal, in the LNG of described LNG heat-exchanger rig input end ingress, be provided with stabilizer structure, in described LNG heat-exchanger rig, be penetrated with the first seawater heat exchanger, the input end of described the first seawater heat exchanger and output terminal are communicated with respectively the entry end of thermal source seawater and the first seawater buffer cavity, the output terminal of described the first seawater buffer cavity is communicated with the input end of the second seawater heat exchanger, the output terminal of described the second seawater heat exchanger is communicated with seawater discharge pond, described the second seawater heat exchanger and LNG preheating heat exchanger are all placed in LNG preheating cabinet, and wherein said the second seawater heat exchanger is immersed in the liquid refrigerant of LNG preheating cabinet, between between described the second seawater heat exchanger and LNG preheating heat exchanger, be separated with stiffening rib plate.
2. improved LNG central fluid vaporizer according to claim 1, it is characterized in that: described stabilizer structure comprises baffle plate and rectification rod, described rectification rod is horizontal in the LNG of described LNG heat-exchanger rig input end ingress, and the two ends of described rectification rod are separately fixed on the sidewall of baffle plate and LNG heat-exchanger rig.
3. improved LNG central fluid vaporizer according to claim 1, is characterized in that: described reinforcement gusset is detachably fixed on the sidewall of LNG preheating cabinet.
4. improved LNG central fluid vaporizer according to claim 3, is characterized in that: described reinforcement gusset is bolted on the sidewall of LNG preheating cabinet, and between described bolts and nuts, spot welding is reinforced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420327893.6U CN204026130U (en) | 2014-06-18 | 2014-06-18 | A kind of improved LNG central fluid vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420327893.6U CN204026130U (en) | 2014-06-18 | 2014-06-18 | A kind of improved LNG central fluid vaporizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204026130U true CN204026130U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420327893.6U Expired - Lifetime CN204026130U (en) | 2014-06-18 | 2014-06-18 | A kind of improved LNG central fluid vaporizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204026130U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017168A (en) * | 2016-07-11 | 2016-10-12 | 江苏科技大学 | LNG vaporizer utilizing phase-change heat transfer technology and vaporization method |
| CN107429879A (en) * | 2015-03-31 | 2017-12-01 | 株式会社神户制钢所 | Cold and heat recovery gas evaporators and the gas vapo rizer with cold and heat recovery function |
| CN110382347A (en) * | 2017-03-06 | 2019-10-25 | 株式会社神户制钢所 | Marine floating type facility |
-
2014
- 2014-06-18 CN CN201420327893.6U patent/CN204026130U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107429879A (en) * | 2015-03-31 | 2017-12-01 | 株式会社神户制钢所 | Cold and heat recovery gas evaporators and the gas vapo rizer with cold and heat recovery function |
| CN107429879B (en) * | 2015-03-31 | 2019-08-13 | 株式会社神户制钢所 | Cold and heat recovery gas evaporators and gas vapo rizer with cold and heat recovery function |
| CN106017168A (en) * | 2016-07-11 | 2016-10-12 | 江苏科技大学 | LNG vaporizer utilizing phase-change heat transfer technology and vaporization method |
| CN110382347A (en) * | 2017-03-06 | 2019-10-25 | 株式会社神户制钢所 | Marine floating type facility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |