CN203743834U - Device for converting liquefied natural gas to compressed natural gas - Google Patents
Device for converting liquefied natural gas to compressed natural gas Download PDFInfo
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- CN203743834U CN203743834U CN201320761081.8U CN201320761081U CN203743834U CN 203743834 U CN203743834 U CN 203743834U CN 201320761081 U CN201320761081 U CN 201320761081U CN 203743834 U CN203743834 U CN 203743834U
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Abstract
The utility model discloses a device for converting liquefied natural gas to compressed natural gas, which comprises a conversion pipeline and an electrical control plate, wherein a liquefied natural gas low-temperature storage bottle, a high-pressure low-temperature plunger pump, a high-pressure air temperature type vaporizer, a high-pressure gas storage bottle group and a gas filling machine are on the conversion pipeline; the liquefied natural gas low-temperature storage bottle, high-pressure low-temperature plunger pump, high-pressure air temperature type vaporizer and gas filling machine are connected in series through pipelines; a low-temperature stop valve a is arranged on the pipeline between the liquefied natural gas low-temperature storage bottle and the high-pressure low-temperature plunger pump; a low-temperature stop valve b is arranged on the pipeline between the high-pressure low-temperature plunger pump and the high-pressure air temperature type vaporizer; a high-pressure ball valve a and a high-pressure ball valve b are arranged on the pipeline between the high-pressure air temperature type vaporizer and the gas filling machine; the high-pressure gas storage bottle group is communicated with a pipeline between the high-pressure ball valve a and the high-pressure ball valve b; a pressure transmitter, a pressure meter and a low-temperature safety valve are respectively arranged on the pipeline between the high-pressure low-temperature plunger pump and the high-pressure air temperature type vaporizer; a high-pressure safety valve is arranged on a connecting pipeline of the high-pressure gas storage bottle group; the electrical control plate is connected with the high-pressure low-temperature plunger pump and the pressure transmitter respectively through cables. The device has the advantages that the liquefied natural gas is compressed to 20Mpa through the high-pressure low-temperature plunger pump according to the incompressibility of liquid.
Description
(1) technical field
The utility model relates to compressed natural gas Preparation equipment, particularly a kind of conversion equipment from LNG Liquefied natural gas to compressed natural gas.
(2) background technique
Compressed natural gas is widely used in compact car as clean energy resource.The preparation of compressed natural gas be generally by rock gas gas well gas or pipe natural gas after filtration, the operation such as dry, compression obtains.In preparation process, compression link will consume a large amount of electric energy.We have developed the conversion equipment from LNG Liquefied natural gas to compressed natural gas for this reason.That this device only needs is compressed, gasification can obtain compressed natural gas and this compression process will consume little electric energy, can be to refueling through filling machine, and using effect is well stable.
(3) model utility content
The purpose of this utility model is for above-mentioned existing problems, and a kind of conversion equipment from LNG Liquefied natural gas to compressed natural gas is provided, and this apparatus structure is simple, easy to implement, little power consumption, easy to maintenance, can guarantee the normal operation of system air feed and safe and reliable.
The technical solution of the utility model:
A kind of conversion equipment from LNG Liquefied natural gas to compressed natural gas, formed by conversion pipeline and electrical control dish, equipment on conversion pipeline comprises LNG Liquefied natural gas low temperature storage bottle, high pressure low temperature plunger pump, high pressure air temperature type device, high-pressure gas cylinder group and filling machine, wherein LNG Liquefied natural gas low temperature storage bottle, high pressure low temperature plunger pump, high pressure air temperature type device and filling machine are connected in series by pipeline, pipeline between LNG Liquefied natural gas low temperature storage bottle and high pressure low temperature plunger pump is provided with cryogenic globe valve a, pipeline between high pressure low temperature plunger pump and high pressure air temperature type device is provided with cryogenic globe valve b, pipeline between high pressure air temperature type device and filling machine is provided with high-pressure ball valve a and high-pressure ball valve b, high-pressure gas cylinder group is connected by the pipeline between pipeline and high-pressure ball valve a and high-pressure ball valve b, on the pipeline between high pressure low temperature plunger pump and high pressure air temperature type device, be respectively equipped with pressure transmitter, pressure gauge and low-temperature safety valve, on the connecting tube of high-pressure gas cylinder group, be provided with high-pressure safety valve, electrical control dish is connected with high pressure low temperature plunger pump and pressure transmitter respectively by cable.
Working procedure of the present utility model:
This conversion equipment is in the time of normal operation, low-temperature liquefaction natural gas via high pressure low temperature plunger pump compression in LNG Liquefied natural gas low temperature storage bottle enters high pressure air-heating type gasifier, and LNG Liquefied natural gas is gasificated into high-pressure natural gas at high pressure air-heating type gasifier absorbing environmental heat energy and enters filling machine to refueling.In order to ensure to export compressed natural gas pressure stability, between high pressure gasifier outlet and filling machine, high pressure tank group is set.Thereby electrical control dish is accepted the motion speed that the pressure transmitter on liquefaction natural gas line provides pressure signal to control high pressure low temperature plunger pump, ensure high pressure low temperature outlet of plunger pump pressure stability.
The applicable pressure range of this conversion equipment is: LNG Liquefied natural gas pressure 0.4-0.8MPa; Compressed natural gas outlet pressure 18-20MPa.。
The utility model has the advantages that: this conversion equipment utilizes the incompressibility of liquid, by high pressure low temperature plunger pump, LNG Liquefied natural gas is compressed to 20Mpa, utilize high pressure air-heating type gasifier, absorbing environmental heat energy can become compressed natural gas by liquefied natural gas gasifying, this conversion device structure is simple, easy to implement, little power consumption, easy to maintenance, can guarantee the normal operation of system air feed and safe and reliable.
(4) brief description of the drawings
Accompanying drawing is this conversion equipment schematic diagram.
In figure: 1. LNG Liquefied natural gas low temperature storage bottle 2. high pressure low temperature plunger pump 3. high pressure air temperature type device 4. high-pressure gas cylinder group 5. filling machine 6. cryogenic globe valve a7. cryogenic globe valve b 8. high-pressure ball valve a 9. high-pressure ball valve b 10. pressure transmitter 11. pressure gauge 12. low-temperature safety valve 13. high-pressure safety valve 14. electrical control dishes
(5) embodiment
Embodiment:
A kind of conversion equipment from LNG Liquefied natural gas to compressed natural gas, formed by conversion pipeline and electrical control dish, equipment on conversion pipeline comprises LNG Liquefied natural gas low temperature storage bottle 1, high pressure low temperature plunger pump 2, high pressure air temperature type device 3, high-pressure gas cylinder group 4 and filling machine 5, wherein LNG Liquefied natural gas low temperature storage bottle 1, high pressure low temperature plunger pump 2, high pressure air temperature type device 3 and filling machine 5 are connected in series by pipeline, pipeline between LNG Liquefied natural gas low temperature storage bottle 1 and high pressure low temperature plunger pump 2 is provided with cryogenic globe valve a6, pipeline between high pressure low temperature plunger pump 2 and high pressure air temperature type device 3 is provided with cryogenic globe valve b7, pipeline between high pressure air temperature type device 3 and filling machine 5 is provided with high-pressure ball valve a8 and high-pressure ball valve b9, high-pressure gas cylinder group 4 is connected by the pipeline between pipeline and high-pressure ball valve a8 and high-pressure ball valve b9, on the pipeline between high pressure low temperature plunger pump 2 and high pressure air temperature type device 3, be respectively equipped with pressure transmitter 10, pressure gauge 11 and low-temperature safety valve 12, on the connecting tube of high-pressure gas cylinder group 4, be provided with high-pressure safety valve 13, electrical control dish 14 is connected with high pressure low temperature plunger pump 2 and pressure transmitter 10 respectively by cable.
In this embodiment, LNG Liquefied natural gas air cylinder model is DP160; The model of cryogenic globe valve is DJ61F-40P DN20, the model of low-temperature high-pressure plunger pump is BP600/250, the model of high pressure air-heating type gasifier is HAV-200 type, and high-pressure gas cylinder model is ZTP273-78-25, and the model of high-pressure ball valve is BKH-DN25-PN315; The model of low-temperature safety valve is DA61F-40PDN15, and the model of high-pressure safety valve is WSL-1/2 "; Cryogenic piping adopts 304 Stainless Steel Tubes, specification Φ 32mm × 3mm; High pressure pipe line adopts 20G, specification Φ 35mm × 6mm, and filling machine is that model is HJY-200 type.Practice shows, effect is good.
Claims (1)
1. the conversion equipment from LNG Liquefied natural gas to compressed natural gas, it is characterized in that: formed by conversion pipeline and electrical control dish, equipment on conversion pipeline comprises LNG Liquefied natural gas low temperature storage bottle, high pressure low temperature plunger pump, high pressure air temperature type device, high-pressure gas cylinder group and filling machine, wherein LNG Liquefied natural gas low temperature storage bottle, high pressure low temperature plunger pump, high pressure air temperature type device and filling machine are connected in series by pipeline, pipeline between LNG Liquefied natural gas low temperature storage bottle and high pressure low temperature plunger pump is provided with cryogenic globe valve a, pipeline between high pressure low temperature plunger pump and high pressure air temperature type device is provided with cryogenic globe valve b, pipeline between high pressure air temperature type device and filling machine is provided with high-pressure ball valve a and high-pressure ball valve b, high-pressure gas cylinder group is connected by the pipeline between pipeline and high-pressure ball valve a and high-pressure ball valve b, on the pipeline between high pressure low temperature plunger pump and high pressure air temperature type device, be respectively equipped with pressure transmitter, pressure gauge and low-temperature safety valve, on the connecting tube of high-pressure gas cylinder group, be provided with high-pressure safety valve, electrical control dish is connected with high pressure low temperature plunger pump and pressure transmitter respectively by cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320761081.8U CN203743834U (en) | 2013-11-27 | 2013-11-27 | Device for converting liquefied natural gas to compressed natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320761081.8U CN203743834U (en) | 2013-11-27 | 2013-11-27 | Device for converting liquefied natural gas to compressed natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743834U true CN203743834U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320761081.8U Expired - Fee Related CN203743834U (en) | 2013-11-27 | 2013-11-27 | Device for converting liquefied natural gas to compressed natural gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN203743834U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776312A (en) * | 2015-04-20 | 2015-07-15 | 中国石油化工股份有限公司 | Device type selection method for L-CNG station |
| CN106015927A (en) * | 2016-05-06 | 2016-10-12 | 王宁 | Liquified natural gas efficient gasification supercharger |
| CN106051456A (en) * | 2016-08-04 | 2016-10-26 | 沈阳洪生气体有限公司 | High-pressure filling system apparatus for oxygen, nitrogen and argon |
| CN108916647A (en) * | 2018-06-25 | 2018-11-30 | 杭州新亚低温科技有限公司 | A kind of cryogenic liquid is converted into the carburetion system of high pressure gas |
-
2013
- 2013-11-27 CN CN201320761081.8U patent/CN203743834U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776312A (en) * | 2015-04-20 | 2015-07-15 | 中国石油化工股份有限公司 | Device type selection method for L-CNG station |
| CN104776312B (en) * | 2015-04-20 | 2017-02-01 | 中国石油化工股份有限公司青岛安全工程研究院 | Device type selection method for L-CNG station |
| CN106015927A (en) * | 2016-05-06 | 2016-10-12 | 王宁 | Liquified natural gas efficient gasification supercharger |
| CN106051456A (en) * | 2016-08-04 | 2016-10-26 | 沈阳洪生气体有限公司 | High-pressure filling system apparatus for oxygen, nitrogen and argon |
| CN108916647A (en) * | 2018-06-25 | 2018-11-30 | 杭州新亚低温科技有限公司 | A kind of cryogenic liquid is converted into the carburetion system of high pressure gas |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20161127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |