CN204627797U - A kind of gas electricity unit blending LNG fuel apparatus - Google Patents
A kind of gas electricity unit blending LNG fuel apparatus Download PDFInfo
- Publication number
- CN204627797U CN204627797U CN201520344314.3U CN201520344314U CN204627797U CN 204627797 U CN204627797 U CN 204627797U CN 201520344314 U CN201520344314 U CN 201520344314U CN 204627797 U CN204627797 U CN 204627797U
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- CN
- China
- Prior art keywords
- lng
- gas
- heat exchanger
- electricity unit
- female pipe
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- 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
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a kind of gas electricity unit blending LNG fuel apparatus, comprise gas conveying female pipe, LNG storage tank, heat exchanger and LNG gasification installation, described heat exchanger is positioned at described gas and carries female pipe, described heat exchanger is provided with LNG inlet opening and LNG delivery outlet, and described LNG storage tank is crossed by the first pipeline communication in described LNG inlet opening; Described LNG delivery outlet is communicated with described LNG gasification installation by second pipe, and described LNG gasification installation is arranged on described gas and carries on female pipe.The utility model device can realize blending LNG fuel.When gas fluctuates about 8%, existing gas electricity unit can be made full use of, improve the utilization ratio of equipment; And the gas of gas density below 8% also can be fully used, that improves fuel utilizes space and utilization ratio; Heat exchanger can carry out degree of depth disengaging to the water of the free state in methane gas simultaneously, is conducive to the raising of gas electricity unit generation efficiency.
Description
Technical field
The utility model relates to a kind of gas electricity unit blending LNG fuel apparatus, belongs to low concentration gas and utilizes apparatus field.
Background technique
Now gas utilization situation is commercially according to the difference of gas density, is mainly divided into following several: one is high concentration gas generator set, and the gas density of requirement is more than 30% be used for generating; One is low-concentration gas power generation unit, and the gas density of requirement is generally 8%-30% and is used for generating electricity; A kind of low especially for gas density, the method adopting weary wind to be oxidized processes; A kind of is be greater than 30% directly utilize as fuel for gas density.
Through the accumulation of long market survey data, regular the fluctuating about 8% of gas density of the colliery extraction found that there is, and domestic gas density is lower than 8% substantially cannot utilize.Now, the double fuel unit that Domestic market has is transformation on the basis of diesel engine, when gas concentration lower than 8% time, or continue to spray into diesel oil and produce, or be in dead status, waste device resource.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of gas electricity unit blending LNG fuel apparatus, overcomes in prior art and low-concentration gas power generation unit cannot realize concentration lower than the utilization of methane gas of 8%, cause the defect of energy waste.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of gas electricity unit blending LNG fuel apparatus, comprise gas conveying female pipe, LNG storage tank, heat exchanger and LNG gasification installation, described heat exchanger is positioned at described gas and carries female pipe, described heat exchanger is provided with LNG inlet opening and LNG delivery outlet, and described LNG storage tank is crossed by the first pipeline communication in described LNG inlet opening; Described LNG delivery outlet is communicated with described LNG gasification installation by second pipe, and described LNG gasification installation is arranged on described gas and carries on female pipe.
The beneficial effects of the utility model are: carry on female pipe at gas and heat exchanger is housed, and which is provided with LNG inlet opening and LNG delivery outlet, LNG inlet opening was communicated with LNG storage tank, and the connection of LNG delivery outlet is arranged on the upper LNG gasification installation of the female pipe of gas conveying, and this device can realize blending LNG fuel.
When gas fluctuates about 8%, existing gas electricity unit can be made full use of, improve the utilization ratio of equipment; And the gas of gas density below 8% also can be fully used, that improves fuel utilizes space and utilization ratio; Heat exchanger can carry out degree of depth disengaging to the water of the free state in methane gas simultaneously, is conducive to the raising of gas electricity unit generation efficiency.
On the basis of technique scheme, the utility model can also do following improvement.
The utility model a kind of gas electricity unit blending LNG fuel apparatus described above, further, also comprise flowmeter, gas concentration sensor, electrically-controlled valve and controller, described flowmeter, gas concentration sensor are arranged on described gas and carry on female pipe, and described electrically-controlled valve is arranged on described second pipe; Described controller connects described flowmeter, gas concentration sensor and electrically-controlled valve by datawire.
The above-mentioned further beneficial effect of the utility model employing is: be provided with flowmeter owing to carrying female pipe at gas, gas concentration sensor, electrically-controlled valve and being all connected with controller, the size that can realize LNG straying quatity carries the data of the gas concentration sensor on female pipe and flowmeter to import controller into by gas, by the internal calculation of controller, thus send command adapted thereto to control the opening time of electrically-controlled valve and to open interval, and then accurately control and measure the straying quatity of the rear LNG of vaporization, reach the object of blending LNG gas generating, thus reduce the discharge of low concentration gas, to company, society brings considerable economic benefit and social benefit.
The utility model a kind of gas electricity unit blending LNG fuel apparatus described above, further, described heat exchanger is spiral tube heat exchanger.
The above-mentioned further beneficial effect of the utility model employing is: effectively can improve heat exchange efficiency.
The utility model a kind of gas electricity unit blending LNG fuel apparatus described above, further, described LNG gasification installation is two or more.
The above-mentioned further beneficial effect of the utility model employing is: the heat exchange efficiency that can realize LNG fast, and sprays into more even; The temperature of effective reduction methane gas, realizes the deep dehydration to free state water in methane gas, ensures the safety in operation of unit.
A kind of gas electricity unit blending LNG fuel process that the utility model oil recovery work above-mentioned gas electricity unit blending LNG fuel apparatus is implemented, comprise the following steps: step 1) when extraction station gas density lower than 8% time, open LNG storage tank, carry the LNG inlet opening on the heat exchanger in female pipe to input LNG in heat exchanger by being arranged on gas, the LNG in heat exchanger and gas carry the gas in female pipe to carry out heat exchange;
Step 2) after heat exchange, LNG gas vaporization, reduces the temperature of methane gas simultaneously, realizes the deep dehydration to free state water in methane gas;
Step 3) LNG after vaporization sprays into gas uniformly by nozzle or gasification installation and carries in female pipe.It is 8.5% that LNG after preferred vaporization sprays into by nozzle or gasification installation the concentration obtaining mixed gas in the female pipe of gas conveying uniformly.
Described LNG spray into time and interval carry the flow in female pipe to take into account the data of the detection of gas concentration sensor by the gas that controller receives after so that control opening time and the open compartment of electrically-controlled valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of gas electricity unit of the utility model blending LNG fuel apparatus.
In accompanying drawing, the list of parts representated by each label is as follows:
1, LNG storage tank, 2, LNG storage tank opening/shutting valve, 3, heat exchanger, 4, the female pipe of gas conveying, 5, flowmeter, 6, gas concentration sensor, 7, controller, 8, electrically-controlled valve, 9, LNG gasification installation, the 10, first pipeline, 11, second pipe.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of gas electricity unit blending LNG fuel apparatus, comprise gas and carry female pipe 4, LNG storage tank 1, heat exchanger 3 and LNG gasification installation 9, described heat exchanger 3 is positioned at described gas and carries female pipe 4, described heat exchanger 3 is provided with LNG inlet opening and LNG delivery outlet, and described LNG inlet opening was communicated with described LNG storage tank 1 by the first pipeline 10; Described LNG delivery outlet is communicated with described LNG gasification installation 9 by second pipe, and described LNG gasification installation 9 is arranged on described gas and carries on female pipe 4.Described heat exchanger is spiral tube heat exchanger.First pipeline 10 is also provided with LNG storage tank opening/shutting valve 2.
The utility model a kind of gas electricity unit blending LNG fuel apparatus described above, in a kind of concrete implementation process, also comprise flowmeter 5, gas concentration sensor 6, electrically-controlled valve 8 and controller 7, described flowmeter 5, gas concentration sensor 6 are arranged on described gas and carry on female pipe 4, and described electrically-controlled valve 8 is arranged on described second pipe 11; Described controller connects described flowmeter, gas concentration sensor and electrically-controlled valve by datawire.Gas carries the data of the gas concentration sensor on female pipe and flowmeter to import controller into, by the internal calculation of controller, thus send command adapted thereto to control the opening time of electrically-controlled valve and to open interval, and then accurately control and measure the straying quatity of the rear LNG of vaporization, reach the object of blending LNG gas generating.Described controller 7 can be the conventional electronic control unit with reception, processing data and control.
The utility model also provides a kind of method of gas electricity unit blending LNG Liquefied natural gas (LNG), comprise the following steps: step 1) when extraction station gas density lower than 8% time, open LNG storage tank, carry the LNG inlet opening on the heat exchanger in female pipe to input LNG in heat exchanger by being arranged on gas, the LNG in heat exchanger and gas carry the gas in female pipe to carry out heat exchange;
Step 2) after heat exchange, LNG gas vaporization, reduces the temperature of methane gas simultaneously, realizes the deep dehydration to free state water in methane gas;
Step 3) LNG after vaporization sprays into gas uniformly by nozzle or gasification installation and carries in female pipe; Described LNG spray into time and interval carry the flow in female pipe to take into account the data of gas concentration sensor by the gas that controller receives after so that control opening time and the open compartment of electrically-controlled valve.
Embodiment 1
Take combined amount as 100m
3/ min, the gas density 7% detected for gas concentration sensor 6, mixing the gas scale before LNG is 7m
3/ min; After adding LNG, make the gas density after blending reach 8.5%, need the electrically-controlled valve 8 control LNG scale under the blending standard condition to be 1.6393m as calculated
3the speed of/min sprays into; Concentration after blending is 8.5%, and mixed amount is 101.64m
3/ min, makes gas density reach power generation requirements.The speed that sprays into of LNG (LNG Liquefied natural gas), to spray into the time different according to the concentration of low concentration gas and the difference of jet size.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a gas electricity unit blending LNG fuel apparatus, it is characterized in that, comprise gas conveying female pipe, LNG storage tank, heat exchanger and LNG gasification installation, described heat exchanger is positioned at described gas and carries female pipe, described heat exchanger is provided with LNG inlet opening and LNG delivery outlet, and described LNG storage tank is crossed by the first pipeline communication in described LNG inlet opening; Described LNG delivery outlet connects described LNG gasification installation by second pipe, and described LNG gasification installation is arranged on described gas and carries on female pipe.
2. a kind of gas electricity unit blending LNG fuel apparatus according to claim 1, it is characterized in that, also comprise flowmeter, gas concentration sensor, electrically-controlled valve and controller, described flowmeter, gas concentration sensor are arranged on described gas and carry on female pipe, and described electrically-controlled valve is arranged on described second pipe; Described controller connects described flowmeter, gas concentration sensor and electrically-controlled valve by datawire.
3. a kind of gas electricity unit blending LNG fuel apparatus according to claim 1 or 2, it is characterized in that, described heat exchanger is spiral tube heat exchanger.
4. a kind of gas electricity unit blending LNG fuel apparatus according to claim 1 or 2, it is characterized in that, described LNG gasification installation is two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344314.3U CN204627797U (en) | 2015-05-25 | 2015-05-25 | A kind of gas electricity unit blending LNG fuel apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344314.3U CN204627797U (en) | 2015-05-25 | 2015-05-25 | A kind of gas electricity unit blending LNG fuel apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627797U true CN204627797U (en) | 2015-09-09 |
Family
ID=54046835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520344314.3U Withdrawn - After Issue CN204627797U (en) | 2015-05-25 | 2015-05-25 | A kind of gas electricity unit blending LNG fuel apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912696A (en) * | 2015-05-25 | 2015-09-16 | 北京扬德环境科技股份有限公司 | Device and method for mixing LNG fuel into methane electric generator set |
-
2015
- 2015-05-25 CN CN201520344314.3U patent/CN204627797U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912696A (en) * | 2015-05-25 | 2015-09-16 | 北京扬德环境科技股份有限公司 | Device and method for mixing LNG fuel into methane electric generator set |
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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: 20150909 Effective date of abandoning: 20171017 |
|
| AV01 | Patent right actively abandoned |