CN202392441U - Liquefied natural gas-based energy supply equipment - Google Patents
Liquefied natural gas-based energy supply equipment Download PDFInfo
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- CN202392441U CN202392441U CN 201120574769 CN201120574769U CN202392441U CN 202392441 U CN202392441 U CN 202392441U CN 201120574769 CN201120574769 CN 201120574769 CN 201120574769 U CN201120574769 U CN 201120574769U CN 202392441 U CN202392441 U CN 202392441U
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- natural gas
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Abstract
The utility model provides liquefied natural gas-based energy supply equipment which comprises a storage tank, an output pipeline, at least one gasifying branch pipeline, a turbomachine and a generator, wherein the storage tank is used for storing liquefied natural gas, the output pipeline is used for outputting the boosted natural gas in the storage tank, the at least one gasifying branch pipeline is used for gasifying the liquefied natural gas output from the output pipeline into compressed natural gas; the turbomachine is used for conducting expansion refrigeration on the compressed natural gas output from the at least one gasifying branch pipeline and provided with a gas inlet and a gas outlet, and the gas outlet is used for outputting the compressed natural gas which is subjected to expansion refrigeration; and the generator is used for generating power by utilizing expansion work of the compressed natural gas in the turbomachine, wherein the turbomachine also has a traction shaft which converts the expansion work into traction force for retracting the generator, and the traction shaft is connected with the generator. The liquefied natural gas-based energy supply equipment has high energy utilization efficiency.
Description
Technical field
The utility model relates to a kind of energy supply equipment based on LNG Liquefied natural gas.
Background technique
Existing LNG vaporizing station flow process adopts the LNG vaporization directly to the pipe network air feed.Referring to shown in Figure 1, after the LNG of LNG storage tank 1 goes out pipeline 13 at the bottom of through the LNG storage tank and to pressurized machine 3 in, injects a certain amount of LNG with pressurized machine inlet pipe road 14, end stop valve 2; LNG this moment part in pressurized machine 3 is vaporized and is boosted; Gas after boosting is got back to the top of LNG storage tank 1 through LNG storage tank high pressure air inlet pipe 15; LNG storage tank 1 back of boosting goes out pipeline 16 through LNG storage tank side and gets into vaporizers 34, goes out pipeline 39 outputs through NG after in vaporizer 34, being vaporizated into NG.
The cold energy of existing LNG vaporizing station usually is not utilized.Cause like this: (1) LNG cold energy is not utilized; (2) the potential pressure of LNG can not be utilized; (3) LNG pressure can utilize the secondary cold energy of back generation also not to be utilized.
The model utility content
To the problem that exists in the correlation technique, the purpose of the utility model is to provide a kind of energy supply equipment based on LNG Liquefied natural gas, to improve efficiency of energy utilization.
For realizing above-mentioned purpose; The utility model provides a kind of energy supply equipment based on LNG Liquefied natural gas; Comprise:, also comprise: at least one gasification branch road that will be compressed natural gas from the liquefied natural gas gasifying of output pipe output in order to the storage tank of storing liquefied rock gas, with the output pipe of the output of the rock gas after boosting in the storage tank; The compressed natural gas of this at least one gasification branch road output is carried out the turbine engine of swell refrigeration, have suction port, supply the air outlet of the compressed natural gas output behind the swell refrigeration; The generator that utilizes the expansion acting of this compressed natural gas in turbine engine to generate electricity, wherein turbine engine also has and converts the acting of expanding in order to the pulling electric generator generating axis of traction, and axis of traction is connected with said generator.Be that generator is drawn by axis of traction, under the effect of axis of traction, generator is driven generating.
Preferably; Outlet end at output pipe is connected with distributing valve; Said gasification branch road is drawn from a valve outlet port of distributing valve; And said gasification branch road comprises: vaporizer, and second heat exchanger channels that the refrigerant that have first heat exchanger channels that confession flows through from the LNG Liquefied natural gas of output pipe, feeds to LNG Liquefied natural gas heat release in first heat exchanger channels is flowed through, the inlet of first heat exchanger channels is communicated with a valve outlet port of distributing valve; Gas holder has gas storage inlet and gas storage outlet, and the gas storage inlet is communicated with the outlet of first heat exchanger channels, and the gas storage outlet is communicated with the suction port of turbine engine.
Preferably; The utility model equipment also comprises: heat exchanger; Second heat exchanger channels that the refrigerant that have first heat exchanger channels that the compressed natural gas of the swell refrigeration that confession discharges from turbine engine flows through, feeds to compressed natural gas heat release first heat exchanger channels is flowed through; The inlet of first heat exchanger channels of heat exchanger is communicated with the air outlet of turbine engine, and the outlet of first heat exchanger channels of heat exchanger is communicated with gas distributing system.
Preferably, the utility model equipment also comprises: the ice-reserving case, have first heat exchanging pipe, first heat exchanging pipe respectively with said gasification branch road in second heat exchanger channels of second heat exchanger channels, heat exchanger of vaporizer be communicated with and form the coolant circulating system of parallel connection; Feed the refrigerant pipeline in the ice-reserving case, the outlet end that the refrigeration agent after having the entrance point of the refrigeration agent inflow that feeds to refrigerant heat release in first heat exchanging pipe and supplying heat release flows out.
Preferably; The utility model equipment also comprises: LNG Liquefied natural gas introduction pipeline and stop valve that pressurized machine, the LNG Liquefied natural gas of drawing from the bottom of storage tank are drawn pipeline, drawn from the top of storage tank; The entry end of pressurized machine, pressurized machine inlet pipe road 14, stop valve, LNG Liquefied natural gas are drawn pipeline and are communicated with successively; The outlet end of pressurized machine is communicated with the LNG Liquefied natural gas introduction pipeline, with sending back in the said storage tank as the LNG Liquefied natural gas after described the boosting after the LNG Liquefied natural gas supercharging.
Compared with prior art, the beneficial effect of the utility model is: the utility model equipment can reclaim generating with LNG pressure, the LNG cold energy is reclaimed, thereby possess higher efficiency of energy utilization.
Description of drawings
Fig. 1 is the schematic representation of existing LNG vaporizing station;
Fig. 2 is the schematic representation based on the energy supply equipment of LNG Liquefied natural gas of the utility model.
Among Fig. 1 and Fig. 2:
1 LNG storage tank
2 LNG stop valves
3 pressurized machines
4 LNG distributing valves
5 LNG vaporizer A
6 LNG vaporizer B
7 CNG gas holder A
8 CNG gas holder B
9 CNG turbine engines
10 generators
11 refrigerant heat exchangers
12 ice-reserving casees
Go out pipeline at the bottom of the 13 LNG storage tanks
14 pressurized machine inlet pipe roads
15 LNG storage tank high pressure air inlet pipe roads (LNG Liquefied natural gas introduction pipeline)
16 LNG storage tank sides go out pipeline
17 LNG vaporizer A feed liquor branch roads
18 LNG vaporizer B feed liquor branch roads
19 CNG gas holder A air inlet pipelines
20 CNG gas holder B air inlet pipelines
21 turbine air inlet pipelines
22 electric power outlet lines
23 NG go out pipeline
24 outer circulation refrigerant inlet ends
25 outer circulation refrigerant outlet ends
The circulation refrigerant goes out pipeline in 26
Circulation refrigerant inlet pipe road in 27
Embodiment
The utility model comprises following examples but is not limited to following examples.Below in conjunction with accompanying drawing the utility model technological scheme is specifically described.
Describe the energy supply equipment based on LNG Liquefied natural gas of the utility model referring to Fig. 2, it comprises: in order to the storage tank 1 of storing liquefied rock gas; Output pipe 16 with the output of the rock gas after boosting in the storage tank 1; To be at least one gasification branch road of compressed natural gas from the liquefied natural gas gasifying of output pipe 16 outputs; The compressed natural gas of this at least one gasification branch road output is carried out the turbine engine 9 of swell refrigeration, and turbine engine 9 has suction port, supply the air outlet of the compressed natural gas output behind the swell refrigeration; The generator 10 that utilizes the expansion acting of compressed natural gas in turbine engine 9 to generate electricity; Wherein turbine engine also has axis of traction; Axis of traction will expand to do work and convert the tractive force in order to pulling electric generator to, and axis of traction is connected with generator in order to drive generator 10 generatings.Further; For LNG Liquefied natural gas in the storage tank 1 is sent back to after drawing supercharging; The utility model equipment also comprises: pressurized machine 3, the LNG Liquefied natural gas of drawing from the bottom of storage tank 1 are drawn pipeline 13, the LNG Liquefied natural gas introduction pipeline 15 of drawing from the top of storage tank 1, stop valve 2; The entry end of pressurized machine 3, pressurized machine inlet pipe road 14, stop valve 2, LNG Liquefied natural gas are drawn pipeline 13 and are communicated with successively; The outlet end of pressurized machine 3 is communicated with LNG Liquefied natural gas introduction pipeline 15, with sending back in the storage tank 1 as the rock gas after described the boosting behind the natural gas boosting.Thereby the utility model equipment can reclaim generating with LNG pressure.
Continuation is referring to Fig. 2, is connected with distributing valve 4 at the outlet end of output pipe 16, and every gasification branch road is drawn from a valve outlet port of said distributing valve 4, and every gasification branch road comprises: vaporizer and gas holder.For example; LNG vaporizer A5 has: second heat exchanger channels that first heat exchanger channels that confession is flowed through from the LNG Liquefied natural gas of output pipe 16, the refrigerant that feeds to LNG Liquefied natural gas heat release in first heat exchanger channels are flowed through, and the inlet of first heat exchanger channels is communicated with a valve outlet port of distributing valve 4; CNG gas holder A7 has gas storage inlet and gas storage outlet, and the gas storage inlet is communicated with the outlet of first heat exchanger channels, and the gas storage outlet is communicated with the suction port of turbine engine 9.
Continuation is referring to Fig. 2, and the energy supply equipment of the utility model also comprises: refrigerant heat exchanger 11.Refrigerant heat exchanger 11 has: second heat exchanger channels that first heat exchanger channels that confession is flowed through from the compressed natural gas of the swell refrigeration of turbine engine 9 discharges, the refrigerant that feeds to compressed natural gas heat release this first heat exchanger channels are flowed through.The inlet of first heat exchanger channels of refrigerant heat exchanger 11 is communicated with the air outlet of turbine engine 9, and the outlet of first heat exchanger channels of refrigerant heat exchanger 11 is communicated with gas distributing system.
Continuation is referring to Fig. 2; The energy supply equipment of the utility model also comprises: ice-reserving case 12; Ice-reserving case 12 has first heat exchanging pipe; First heat exchanging pipe respectively with said gasification branch road in second heat exchanger channels, second heat exchanger channels of refrigerant heat exchanger 11 of vaporizer be communicated with, to form the coolant circulating system of parallel connection; And, feeding the refrigerant pipeline in the ice-reserving case 12, this refrigerant pipeline has entrance point 24, outlet end 25.The refrigeration agent of refrigerant heat release flows into from entrance point 24 in first heat exchanging pipe of heat exchanger 11, and the refrigeration agent after the heat release flows out from outlet end 25.Thereby the utility model equipment reclaims the LNG cold energy.
Below referring to Fig. 2, the workflow of the utility model equipment is described:
After the LNG of storage tank 1 (LNG Liquefied natural gas) goes out pipeline 13 at the bottom of through the LNG storage tank and in pressurized machine 3, injects a certain amount of LNG with pressurized machine inlet pipe road 14, utilize stop valve 2 to end; LNG this moment part in pressurized machine 3 is vaporized and is boosted; Gas after boosting is got back to the top of storage tank 1 through LNG storage tank high pressure air inlet pipe road 15; Rock gas after boosting in the storage tank 1 goes out pipeline 16 through LNG storage tank side and gets into LNG distributing valve 4; LNG distributing valve 4 is alternately carried LNG to difference gasification branch road through program; One the tunnel to be example, the overwhelming majority was vaporizated into CNG (compressed natural gas) after LNG got into LNG vaporizer A5 through LNG vaporizer A5 feed liquor branch road 17, got into CNG gas holder A7 through CNG gas holder A7 air inlet pipeline 19 and stored.Expand through turbine air inlet pipeline 21 entering CNG turbine engines 9 then and do work, turbine engine 9 also has aforesaid axis of traction, and this axis of traction drives generator 10 generatings and exported by electric power outlet line 22.The NG of decompression gets into refrigerant heat exchanger 11 in the CNG turbine engine 9, and the back of heating up goes out pipeline 23 outputs through NG.Interior circulation refrigerant is seen off to LNG vaporizer A5, LNG vaporizer B6, refrigerant heat exchanger 11 respectively after from ice-reserving case 12, being gone out pipeline 26 and flowed out by interior circulation refrigerant, reclaim cold after, compile for getting back to ice-reserving case 12 in interior circulation refrigerant inlet pipe road 27; The outer circulation refrigerant is from outer circulation refrigerant inlet end 24 input, get into ice-reserving case 12 get cold after, by 25 outputs of outer circulation refrigerant outlet end.
Referring to the utility model energy supply equipment shown in Fig. 2; With pressure be 1 standard atmospheric pressure, temperature for-162 ℃ be that the LNG of example, 1000kg/h is an example; Turbine engine 9 acting 90kw; LNG vaporizer A5 produces cold energy 185.6kw (because LNG vaporizer A5 and LNG vaporizer B6 are arranged side by side, correspondingly LNG vaporizer B6 also can produce cold energy 185.6kw), and refrigerant heat exchanger 11 produces cold energy 30.7kw.
To sum up, the utility model equipment can reclaim generating with LNG pressure, the LNG cold energy is reclaimed, thereby possess higher efficiency of energy utilization.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. energy supply equipment based on LNG Liquefied natural gas comprises: in order to the storage tank (1) of storing liquefied rock gas, with the output pipe (16) of the output of the rock gas after boosting in the said storage tank (1),
It is characterized in that, also comprise:
To be at least one gasification branch road of compressed natural gas from the liquefied natural gas gasifying of said output pipe (16) output;
The compressed natural gas of said at least one gasification branch road output is carried out the turbine engine (9) of swell refrigeration, have suction port, supply the air outlet of the compressed natural gas output behind the swell refrigeration;
The generator (10) that utilizes the expansion acting of said compressed natural gas in said turbine engine (9) to generate electricity,
Wherein, said turbine engine also has and converts said expansion acting in order to the tractive force of pulling electric generator axis of traction, and said axis of traction is connected with said generator.
2. energy supply equipment according to claim 1 is characterized in that,
Outlet end at said output pipe (16) is connected with distributing valve (4), and said gasification branch road is drawn from a valve outlet port of said distributing valve (4), and said gasification branch road comprises:
Vaporizer; Second heat exchanger channels that the refrigerant that have first heat exchanger channels that confession flows through from the LNG Liquefied natural gas of said output pipe (16), feeds to LNG Liquefied natural gas heat release in said first heat exchanger channels is flowed through, the inlet of said first heat exchanger channels is communicated with a valve outlet port of said distributing valve (4);
Gas holder has gas storage inlet and gas storage outlet, and said gas storage inlet is communicated with the outlet of said first heat exchanger channels, and said gas storage outlet is communicated with the suction port of said turbine engine (9).
3. energy supply equipment according to claim 2 is characterized in that, also comprises:
Heat exchanger (11), second heat exchanger channels that the refrigerant that have first heat exchanger channels that the compressed natural gas of the swell refrigeration that confession discharges from said turbine engine (9) flows through, feeds to compressed natural gas heat release said first heat exchanger channels is flowed through,
Wherein, the inlet of first heat exchanger channels of said heat exchanger (11) is communicated with the air outlet of said turbine engine (9), and the outlet of first heat exchanger channels of said heat exchanger (11) is communicated with gas distributing system.
4. according to claim 2 or 3 described energy supply equipment, it is characterized in that, also comprise:
Ice-reserving case (12) has first heat exchanging pipe, said first heat exchanging pipe respectively with said gasification branch road in second heat exchanger channels of second heat exchanger channels, said heat exchanger (11) of said vaporizer be communicated with and form the coolant circulating system of parallel connection; And
Feed the refrigerant pipeline in the said ice-reserving case (12), the outlet end (25) that the refrigeration agent after having the entrance point (24) of the refrigeration agent inflow that feeds to refrigerant heat release in said first heat exchanging pipe and supplying heat release flows out.
5. energy supply equipment according to claim 1 is characterized in that, also comprises:
Pressurized machine (3), the LNG Liquefied natural gas of drawing from the bottom of said storage tank (1) are drawn pipeline (13), the LNG Liquefied natural gas introduction pipeline (15) of drawing from the top of said storage tank (1) and stop valve (2),
Wherein, the entry end of said pressurized machine (3), pressurized machine inlet pipe road 14, stop valve (2), LNG Liquefied natural gas are drawn pipeline (13) and are communicated with successively, and the outlet end of said pressurized machine (3) is communicated with said LNG Liquefied natural gas introduction pipeline (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120574769 CN202392441U (en) | 2011-12-31 | 2011-12-31 | Liquefied natural gas-based energy supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120574769 CN202392441U (en) | 2011-12-31 | 2011-12-31 | Liquefied natural gas-based energy supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392441U true CN202392441U (en) | 2012-08-22 |
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ID=46667367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120574769 Expired - Lifetime CN202392441U (en) | 2011-12-31 | 2011-12-31 | Liquefied natural gas-based energy supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253294A (en) * | 2017-12-29 | 2018-07-06 | 上海新奥新能源技术有限公司 | A kind of liquefied natural gas supplying system |
| CN110274157A (en) * | 2018-03-14 | 2019-09-24 | 上海强精金属制品有限公司 | A kind of energy-efficient precision element spraying dynamical system |
-
2011
- 2011-12-31 CN CN 201120574769 patent/CN202392441U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253294A (en) * | 2017-12-29 | 2018-07-06 | 上海新奥新能源技术有限公司 | A kind of liquefied natural gas supplying system |
| CN110274157A (en) * | 2018-03-14 | 2019-09-24 | 上海强精金属制品有限公司 | A kind of energy-efficient precision element spraying dynamical system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XIN'AO (CHINA) GAS INVESTMENT CO., LTD. Free format text: FORMER OWNER: XINAO SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20141209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 065001 LANGFANG, HEBEI PROVINCE TO: 100000 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141209 Address after: 100000 Xicheng District, Beijing, Jin Fang street, No. 26, the office of the Austrian Olympic Center C block 501-2 Patentee after: New Austrian (China) Gas Investment Co., Ltd. Address before: Langfang City, Hebei province Guangyang road 065001 North Zone Patentee before: ENN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |