CN203214195U - Thermoelectric power generation technology based LNG (Liquefied Natural Gas) engine energy recovery device - Google Patents
Thermoelectric power generation technology based LNG (Liquefied Natural Gas) engine energy recovery device Download PDFInfo
- Publication number
- CN203214195U CN203214195U CN2013201639795U CN201320163979U CN203214195U CN 203214195 U CN203214195 U CN 203214195U CN 2013201639795 U CN2013201639795 U CN 2013201639795U CN 201320163979 U CN201320163979 U CN 201320163979U CN 203214195 U CN203214195 U CN 203214195U
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- China
- Prior art keywords
- lng
- pipe
- thermoelectric generator
- porous flat
- cooling liquid
- 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.)
- Withdrawn - After Issue
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 239000003949 liquefied natural gas Substances 0.000 title abstract description 64
- 238000011084 recovery Methods 0.000 title abstract description 8
- 238000010248 power generation Methods 0.000 title abstract 5
- 239000000110 cooling liquid Substances 0.000 claims abstract description 30
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 13
- 238000002309 gasification Methods 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000875 corresponding Effects 0.000 claims description 3
- 230000001808 coupling Effects 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000005435 mesosphere Substances 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 12
- 238000011068 load Methods 0.000 abstract description 3
- 239000000295 fuel oil Substances 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 230000005678 Seebeck effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910002089 NOx Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model discloses a thermoelectric power generation technology based LNG (Liquefied Natural Gas) engine energy recovery device, which comprises a thermoelectric generator. An exhaust port of an LNG gas tank is connected to the thermoelectric generator through an LNG inlet pipe; an LNG outlet pipe of the thermoelectric generator after passing through a filter cleaner and a pressure stabilizer is connected to a mixer. The thermoelectric power generation technology based LNG engine energy recovery device can utilizes the thermoelectric power generation technology to recover energy while achieving the LNG function. The thermoelectric power generation technology based LNG engine energy recovery device can utilize both the afterheat energy of the engine and special cold energy of LNG vehicles, so that energy recovery efficiency is improved to the maximum extent, and economic property of the fuel oil of the vehicle is improved. Meanwhile, the temperature of inlet gas of the engine can be controlled through adjustment of parameters, such as the flow of a cooling liquid and the load of the thermoelectric generator, so that heat management of the LNG engine is realized.
Description
Technical field
The utility model relates to the thermo-electric generation technical field, is specifically related to a kind of based on thermo-electric generation technology LNG engine power recovering device.
Background technique
Fast development along with China's vehicle guaranteeding organic quantity, we are many simultaneously to bring great challenge aspect the energy and the environmental protection also for us to automobile easily bringing, by the end of the year 2011, whole nation vehicle guaranteeding organic quantity is 2.25 hundred million, wherein only automobile just has 1.06 hundred million, this wherein power source still based on motor.Though motor has experienced 100 years of development, but its thermal efficiency is still lower, having nearly in the fuel, about 60% energy is not utilized effectively, wherein only the heat taken away of engine exhaust just accounts for about 30%～45% of fuel combustion heat, the heat that is used for cooling accounts for about 30%, these energy overwhelming majority are lost in the air with the form of waste heat, have caused huge energy waste and serious environmental to pollute.
Rock gas is the energy a kind of as an alternative, has greater advantage at aspects such as CO, NOx and HC dischargings, become one of trend of world's cleaning vehicle development.LNG(rock gas particularly) automobile though start late, because its cleaning, efficient, economic fuel characteristic, is acknowledged as the important directions of following gas-fueled vehicles development.The fuel of its use is the rock gas that liquid form stores, storing temperature is about-162～-140 ℃, needing heating and gasifying is that gaseous natural gas under the normal temperature and pressure just can be delivered to motor car engine, in gasification, need to absorb a large amount of heats, be cold energy, LNG will have considerable economic and social benefit with this part cold of containing at low temperatures.
Cold when therefore, LNG being gasified and engine exhaust heat energy reclaim for the fuel economy and the thermal efficiency that improve motor important effect.
The thermo-electric generation technology is to utilize the Seebeck effect of thermoelectric material (Seebeck effect) directly heat energy to be converted into the technology of electric energy, as long as exist the temperature difference just can produce electric energy, have and need not to increase characteristics such as engine loading, noiseless, volume be little, be a kind of comparatively desirable energy recovery technology, the application intends studying reclaiming based on thermo-electric generation technology LNG engine power for this reason.
The prerequisite that utilizing the thermo-electric generation technology to carry out the engine power recovery needs is that the thermoelectric generator two ends have certain temperature difference, also is that thermoelectric generator needs low-temperature receiver and thermal source.When utilizing the thermo-electric generation technology that the engine exhaust heat energy is reclaimed, be that tail gas or cooling water all are the thermals source as thermoelectric generator, and low-temperature receiver adopts the mode of water-cooled or air-cooled radiator to realize that the cold energy that produces in the LNG motor gasification process then is a kind of desirable low-temperature receiver.Simultaneously, for gas engine, its intake temperature is for the engine performance important influence, if can adjust its temperature then can effectively improve the fuel economy of motor.
The model utility content
The utility model is purpose based on energy recycling, reduction energy consumption, existing LNG motor gasification device (vaporizer) is redesigned, can enough when finishing the LNG gasification function, can also utilize the thermo-electric generation technology to carry out the device that energy reclaims.
The utility model is achieved through the following technical solutions: a kind of based on thermo-electric generation technology LNG engine power recovering device, comprise thermoelectric generator, the relief opening of LNG gas tank is connected with the thermoelectric generator cold side inlet by the LNG suction tude, the outlet of LNG motor gasification device is connected with the thermoelectric generator hot side inlet by the cooling liquid inlet pipe, the outlet of thermoelectric generator hot junction is connected with LNG motor gasification device entrance, the thermoelectric generator cold side outlet is connected with voltage stabilizer with filter cleaner successively by the LNG steam outlet pipe, is connected the fuel as the LNG motor afterwards with mixer.
Described thermoelectric generator comprises the porous flat pipe of at least three layers of mutual superposition, every layer of porous flat pipe inner chamber is provided with interlayer and constitutes a plurality of passages, uniform arrangement fixedly has the thermo-electric generation sheet in each passage, the thickness of thermo-electric generation sheet and width are less than height and the width of passage, the two ends of every layer of porous flat pipe are provided with seals pipeline, the side of sealing pipeline is provided with side opening, and the side opening coupling is sleeved on corresponding porous flat pipe end and sealing and fixing, and an end that respectively seals pipeline is sealed; Upper strata porous flat pipe cooling passage, one end are the cooling liquid inlet pipe, and the other end is the cooling liquid inlet pipe; Adjacent lower floor's porous flat pipe is the LNG passage, and the one end is the LNG suction tude, and the other end is the LNG steam outlet pipe; Cooling passage and LNG passage are alternately arranged.
Have three layers of porous flat pipe, the upper strata porous flat pipe is cooling passage, and the one end is the cooling liquid inlet pipe, and the other end is that cooling liquid goes out pipe; The mesosphere porous flat pipe is the LNG passage, and the one end is the LNG suction tude, and the other end is the LNG steam outlet pipe; Lower floor's porous flat pipe cooling passage, one end are the cooling liquid inlet pipe, and the other end is that cooling liquid goes out pipe; Cooling liquid is opposite as the flow direction of low-temperature receiver with LNG as the flow direction of thermal source.
The utlity model has following advantage: 1. the utility model redesigns existing LNG motor gasification device (vaporizer), utilize the thermo-electric generation principle, high temperature adopts engine cooling water, the low temperature that low temperature adopts the LNG gasification to produce, can enough can also utilize the thermo-electric generation technology to carry out energy when finishing the LNG gasification function reclaims, can either utilize the waste heat energy of motor, can utilize the distinctive cold energy of LNG vehicle again, farthest improve energy recovery efficiency, improve the fuel economy of vehicle.
2. the LNG fuel supply system after improving utilizes thermoelectric generator to replace original vaporizer, adopt three layers or multilayer heat exchange structure, LNG is from its middle passing, form the cold junction of thermoelectric generator, also enter thermoelectric generator from the cooling water of motor or the hot water of process gas exhaust piping simultaneously, form the hot junction of thermoelectric generator, it can either be reclaimed the used heat energy of motor.Simultaneously, parameters such as flow that can also be by adjusting cooling liquid, thermoelectric generator load are controlled Engine Inlet Temperature, realize the heat management of LNG motor.
Description of drawings
Fig. 1 is the structural representation of the utility model ability recovering device;
Fig. 2 is the perspective view of thermoelectric generator among Fig. 1;
Fig. 3 is porous flat pipe and interior dress thermo-electric generation chip architecture schematic representation among Fig. 2;
Fig. 4 is the pipeline schematic representation that is connected with porous flat pipe.
Among the figure, label 1 is the LNG gas tank, and 2 is thermoelectric generator, and 3 is filter cleaner, and 4 is voltage stabilizer, and 5 is the LNG suction tude, and 6 is the LNG steam outlet pipe, and 7 is the cooling liquid inlet pipe, and 8 for cooling liquid goes out pipe, and 9 is the thermo-electric generation sheet, and 10 are capping, and 11 is side opening, and 12 is porous flat pipe.
Embodiment
Embodiment 1: a kind of based on thermo-electric generation technology LNG engine power recovering device, referring to Fig. 1, this device comprises parts such as LNG gas tank, thermoelectric generator, filter cleaner, voltage stabilizer and mixer.Wherein, the relief opening of LNG gas tank 1 is connected with thermoelectric generator 2 cold side inlets by LNG suction tude 5, the outlet of LNG motor gasification device is connected with thermoelectric generator 2 hot side inlet by cooling liquid inlet pipe 7, the outlet of thermoelectric generator 2 hot junctions is connected with LNG motor gasification device entrance, and thermoelectric generator 2 cold side outlets are connected the fuel as the LNG motor with filter cleaner 3, voltage stabilizer 4, mixer successively by the LNG steam outlet pipe.
As Fig. 2-shown in Figure 4, thermoelectric generator 2 comprises the porous flat pipe 12 of three layers of mutual superposition, every layer of porous flat pipe 12 inner chamber are provided with interlayer and constitute a plurality of passages, uniform arrangement fixedly has thermo-electric generation sheet 9 in each passage, the thickness of thermo-electric generation sheet 9 and width are less than height and the width of passage, the two ends of every layer of porous flat pipe 12 are provided with seals pipeline, the side of sealing pipeline is provided with side opening 11, side opening 11 couplings are sleeved on corresponding porous flat pipe 12 ends and sealing and fixing, and an end that respectively seals pipeline adopts capping 10 sealings.Seal pipeline and go out pipe 8 uses as LNG suction tude 5, LNG steam outlet pipe 6, cooling liquid inlet pipe 7 and cooling liquid respectively, specifically be allocated as follows: upper strata porous flat pipe 12 is as cooling passage, and the one end is cooling liquid inlet pipe 7, and the other end is that cooling liquid goes out pipe 8; The mesosphere is that porous flat pipe 12 is the LNG passage, and the one end is LNG suction tude 5, and the other end is LNG steam outlet pipe 6; Lower floor's porous flat pipe 12 is cooling passage also, and the one end is cooling liquid inlet pipe 7, and the other end is that cooling liquid goes out pipe 8; Cooling liquid is opposite as the flow direction of low-temperature receiver with LNG as the flow direction of thermal source.
Embodiment 2: accompanying drawing is not drawn, and content is substantially the same manner as Example 1, and something in common does not repeat, different is: thermoelectric generator comprises the porous flat pipe of five layers of mutual superposition, upper strata porous flat pipe cooling passage, one end are the cooling liquid inlet pipe, and the other end is that cooling liquid goes out pipe; Adjacent lower floor's porous flat pipe is the LNG passage, and the one end is the LNG suction tude, and the other end is the LNG steam outlet pipe; Cooling passage and LNG passage are alternately arranged.
Claims (3)
1. one kind based on thermo-electric generation technology LNG engine power recovering device, comprise thermoelectric generator, it is characterized in that: the relief opening of LNG gas tank is connected with the thermoelectric generator cold side inlet by the LNG suction tude, the outlet of LNG motor gasification device is connected with the thermoelectric generator hot side inlet by the cooling liquid inlet pipe, the outlet of thermoelectric generator hot junction is connected with LNG motor gasification device entrance, the thermoelectric generator cold side outlet is connected with voltage stabilizer with filter cleaner successively by the LNG steam outlet pipe, is connected the fuel as the LNG motor afterwards with mixer.
2. according to claim 1 based on thermo-electric generation technology LNG engine power recovering device, it is characterized in that: described thermoelectric generator comprises the porous flat pipe of at least three layers of mutual superposition, every layer of porous flat pipe inner chamber is provided with interlayer and constitutes a plurality of passages, uniform arrangement fixedly has the thermo-electric generation sheet in each passage, and the thickness of thermo-electric generation sheet and width are less than height and the width of passage; The two ends of every layer of porous flat pipe are provided with seals pipeline, and the side of sealing pipeline is provided with side opening, and the side opening coupling is sleeved on corresponding porous flat pipe end and sealing and fixing, and an end that respectively seals pipeline is sealed; Upper strata porous flat pipe cooling passage, one end are the cooling liquid inlet pipe, and the other end is the cooling liquid inlet pipe; Adjacent lower floor's porous flat pipe is the LNG passage, and the one end is the LNG suction tude, and the other end is the LNG steam outlet pipe; Cooling passage and LNG passage are alternately arranged.
3. according to claim 2 based on thermo-electric generation technology LNG engine power recovering device, it is characterized in that: have three layers of porous flat pipe, the upper strata porous flat pipe is cooling passage, and the one end is the cooling liquid inlet pipe, and the other end is that cooling liquid goes out pipe; The mesosphere porous flat pipe is the LNG passage, and the one end is the LNG suction tude, and the other end is the LNG steam outlet pipe; Lower floor's porous flat pipe cooling passage, one end are the cooling liquid inlet pipe, and the other end is that cooling liquid goes out pipe; Cooling liquid is opposite as the flow direction of low-temperature receiver with LNG as the flow direction of thermal source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201639795U CN203214195U (en) | 2013-04-03 | 2013-04-03 | Thermoelectric power generation technology based LNG (Liquefied Natural Gas) engine energy recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201639795U CN203214195U (en) | 2013-04-03 | 2013-04-03 | Thermoelectric power generation technology based LNG (Liquefied Natural Gas) engine energy recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214195U true CN203214195U (en) | 2013-09-25 |
Family
ID=49203740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201639795U Withdrawn - After Issue CN203214195U (en) | 2013-04-03 | 2013-04-03 | Thermoelectric power generation technology based LNG (Liquefied Natural Gas) engine energy recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214195U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174549A (en) * | 2013-04-03 | 2013-06-26 | 河南农业大学 | Liquefied natural gas (LNG) engine energy recovery device and energy recovery method based on thermoelectric power generation technology |
| CN109356680A (en) * | 2018-12-17 | 2019-02-19 | 大连理工大学 | A kind of Rankine cycle electricity generation system with thermo-electric generation heat exchanger using LNG cold energy |
| WO2022268306A1 (en) | 2021-06-23 | 2022-12-29 | Wärtsilä Gas Solutions Norway AS | An arrangement for managing temperature of liquefied gas fuel in a fuel tank of a marine vessel |
-
2013
- 2013-04-03 CN CN2013201639795U patent/CN203214195U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174549A (en) * | 2013-04-03 | 2013-06-26 | 河南农业大学 | Liquefied natural gas (LNG) engine energy recovery device and energy recovery method based on thermoelectric power generation technology |
| CN103174549B (en) * | 2013-04-03 | 2015-09-23 | 河南农业大学 | Based on thermoelectric generation LNG engine power recovering device and method |
| CN109356680A (en) * | 2018-12-17 | 2019-02-19 | 大连理工大学 | A kind of Rankine cycle electricity generation system with thermo-electric generation heat exchanger using LNG cold energy |
| WO2022268306A1 (en) | 2021-06-23 | 2022-12-29 | Wärtsilä Gas Solutions Norway AS | An arrangement for managing temperature of liquefied gas fuel in a fuel tank of a marine vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130925 Effective date of abandoning: 20150923 |
|
| RGAV | Abandon patent right to avoid regrant |