CN207907583U - A kind of two refrigerants liquefaction system of natural gas - Google Patents
A kind of two refrigerants liquefaction system of natural gas Download PDFInfo
- Publication number
- CN207907583U CN207907583U CN201721793099.0U CN201721793099U CN207907583U CN 207907583 U CN207907583 U CN 207907583U CN 201721793099 U CN201721793099 U CN 201721793099U CN 207907583 U CN207907583 U CN 207907583U
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- China
- Prior art keywords
- natural gas
- heat exchanger
- cryogen
- filter device
- pipeline
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Abstract
The utility model discloses a kind of two refrigerants liquefaction systems of natural gas, including natural gas tank, filter device, knockout drum, the first cooling device, control cabinet, the natural gas tank side is provided with the filter device, the filter device is internally provided with filled layer, the filled layer is provided with filter membrane far from the natural gas tank side, and the filter membrane is provided with gas sensor far from the filled layer side.Advantageous effect is：The utility model is provided with the first cryogen heat exchanger and the second cryogen heat exchanger, liquefaction processing is carried out to natural gas by heat exchange twice, it is additionally provided with filter device and denitrification column simultaneously, processing and denitrogenation processing are filtered to natural gas, it ensure that the quality of liquefied natural gas, the utility model is simple in structure, easy to use, substantially increases the working efficiency and work quality of natural gas liquefaction.
Description
Technical field
The utility model is related to natural gas liquefaction system fields, more particularly to a kind of two refrigerants liquefaction system of natural gas
System.
Background technology
Natural gas is gaseous material under natural environmental condition, very uneconomical to user by pipeline over long distances,
It is especially needing across ocean or can not be even more that cannot achieve when transportation pipe line, therefore, to realize the defeated of natural gas
It send and utilizes, it is necessary to which it is liquefied natural gas to be liquefied, and natural gas liquefaction flow includes mainly three kinds：Cascade,
Mix refrigerant liquefaction flow path and liquefaction flow path with expanding machine, current most of natural gas liquefaction devices use mix refrigerant
Liquefaction flow path, but this natural gas liquefaction system workflow is more complex, equipment volume is larger and cost is higher, and is easy
The problem of appearance system work efficiency drop.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of two refrigerants liquefaction system of natural gas
System.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of two refrigerants liquefaction system of natural gas, including natural gas tank, filter device, knockout drum, the first cooling device,
Control cabinet, the natural gas tank side are provided with the filter device, and the filter device is internally provided with filled layer, described to fill out
It fills layer and the natural gas tank side is provided with filter membrane, the filter membrane is provided with gas sensing far from the filled layer side
Device, the filter device are provided with the first cryogen heat exchanger far from the natural gas tank side, on the first cryogen heat exchanger
Side is provided with first cooling device, and first cooling device includes cooler and compressor, the first cryogen heat exchange
Device is provided with the knockout drum far from the filter device side, and the knockout drum is internally provided with the gas sensor, institute
It states knockout drum and the first cryogen heat exchanger side is provided with denitrification column, the denitrification column is internally provided with the gas and passes
Sensor, the denitrification column are provided with the second cryogen heat exchanger, the second cryogen heat exchanger top far from the knockout drum side
It is provided with the second cooling device, second cooling device includes the cooler and the compressor, and second cryogen changes
Hot device is provided with liquified natural gas tank far from the denitrification column side, and the control cabinet front is provided with touch screen and loudspeaker, institute
It states control cabinet and is internally provided with processor and wireless communication chips.
In above structure, the natural gas in the natural gas tank enters the filter device, the filter device filter
Except substances such as moisture, particulate matter, acid in gaseous natural gas, filtered gas enters the first cryogen heat exchanger, low temperature
First cryogen carries out heat exchange with gas, and the first cryogen after heating returns to first cooling device, is again converted into low temperature
First cryogen flows into the first cryogen heat exchanger, at the same occur liquefied heavy hydrocarbon and gaseous lighter hydrocarbons enter the knockout drum into
Promoting the circulation of qi liquid separating treatment, gaseous state lighter hydrocarbons enter the denitrification column and carry out denitrogenation processing, described in the gas entrance by denitrogenation processing
Second cryogen heat exchanger, the second cryogen of low temperature carry out heat exchange with gas, and the second cryogen after heating enters described first and cools down
Device carries out first cooling processing, and return to second cooling device by the second cryogen to cool down for the first time cools down again
Processing, the second cryogen of low temperature after the completion of cooling is handled again again flow into the second cryogen heat exchanger, while liquefied gas
State hydrocarbon enters the liquified natural gas tank, and the natural gas liquefaction data detected are sent to prison by the wireless communication chips timing
Control terminal.
It is the processor and the wireless communication chips, described in order to further increase the working efficiency of natural gas liquefaction
Touch screen, the loudspeaker and gas sensor electrical connection.
In order to further increase the working efficiency of natural gas liquefaction, the natural gas tank passes through pipeline with the filter device
It is connected, the filter device is connected with the first cryogen heat exchanger by pipeline.
In order to further increase the working efficiency of natural gas liquefaction, the first cryogen heat exchanger is filled with first cooling
It sets and is connected by pipeline with the knockout drum.
In order to further increase the working efficiency of natural gas liquefaction, the knockout drum and the first cryogen heat exchanger and institute
Denitrification column is stated by pipeline to be connected.
In order to further increase the working efficiency of natural gas liquefaction, the denitrification column passes through with the second cryogen heat exchanger
Pipeline is connected, and the second cryogen heat exchanger is connected with the liquified natural gas tank by pipeline.
In order to further increase the working efficiency of natural gas liquefaction, the second cryogen heat exchanger is filled with first cooling
It sets and is connected by pipeline with second cooling device.
Advantageous effect is：The utility model is provided with the first cryogen heat exchanger and the second cryogen heat exchanger, by twice
Heat exchange carries out liquefaction processing to natural gas, while being additionally provided with filter device and denitrification column, and processing is filtered to natural gas
And denitrogenation processing, it ensure that the quality of liquefied natural gas, the utility model is simple in structure, easy to use, substantially increases natural
The working efficiency and work quality of gas liquefaction.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the two refrigerants liquefaction system of natural gas described in the utility model；
Fig. 2 is a kind of control cabinet structural schematic diagram of the two refrigerants liquefaction system of natural gas described in the utility model；
Fig. 3 is a kind of filter apparatus configuration schematic diagram of the two refrigerants liquefaction system of natural gas described in the utility model.
The reference numerals are as follows：
1, natural gas tank；2, filter device；3, filled layer；4, filter membrane；5, the first cooling device；6, cooler；7, it compresses
Machine；8, the second cooling device；9, liquified natural gas tank；10, the second cryogen heat exchanger；11, denitrification column；12, knockout drum；13,
One cryogen heat exchanger；14, gas sensor；15, touch screen；16, control cabinet；17, loudspeaker；18, processor；19, it wirelessly communicates
Chip.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1-Figure 3, the two refrigerants liquefaction system of a kind of natural gas, including natural gas tank 1, filter device 2, separation
Tank 12, the first cooling device 5, control cabinet 16,1 side of natural gas tank are provided with filter device 2, and filter device 2 is internally provided with
Filled layer 3, filters out the substances such as particulate matter, moisture, the acid in natural gas, and filled layer 3 is provided with filter membrane far from 1 side of natural gas tank
4, thin to filter, filter membrane 4 is provided with gas sensor 14 far from 3 side of filled layer, detects the gas componant after filtration treatment, filtering
Device 2 is provided with the first cryogen heat exchanger 13 far from 1 side of natural gas tank, and first cooling liquefaction work is carried out to natural gas, the
One cryogen heat exchanger, 13 top is provided with the first cooling device 5, is compressed to the first cryogen and the second cryogen, cooling treatment,
First cooling device 5 includes cooler 6 and compressor 7, and the first cryogen heat exchanger 13 is provided with separation far from 2 side of filter device
Tank 12 detaches liquid heavy hydrocarbon with gaseous state lighter hydrocarbons, and knockout drum 12 is internally provided with gas sensor 14, and the ingredient of detection gas contains
Amount, knockout drum 12 are provided with denitrification column 11 far from 13 side of the first cryogen heat exchanger, carry out denitrogenation work, are set inside denitrification column 11
It is equipped with gas sensor 14, detects the variation of nitrogen content, denitrification column 11 is provided with the second cryogen far from 12 side of knockout drum and changes
Hot device 10 carries out natural gas cooling liquefaction work again, and 10 top of the second cryogen heat exchanger is provided with the second cooling device 8,
Second cryogen is compressed, cooling treatment, the second cooling device 8 includes cooler 6 and compressor 7, the second cryogen heat exchanger
10 are provided with liquified natural gas tank 9 far from 11 side of denitrification column, store liquefied natural gas, 16 front of control cabinet is provided with touch screen
15 and loudspeaker 17, display and setting running parameter, control cabinet 16 are internally provided with processor 18 and wireless communication chips 19, realize
The purpose of remote monitoring.
In above structure, the natural gas in natural gas tank 1 enters filter device 2, and it is natural that filter device 2 filters out gaseous state
The substances such as moisture, particulate matter, acid in gas, filtered gas enter the first cryogen heat exchanger 13, the first cryogen of low temperature and gas
Body carries out heat exchange, and the first cryogen after heating returns to the first cooling device 5, is again converted into the first cryogen of low temperature and flows into first
Cryogen heat exchanger 13, while occurring liquefied heavy hydrocarbon and gaseous lighter hydrocarbons enter knockout drum 12 and carry out gas-liquid separation processing, gaseous state
Lighter hydrocarbons enter denitrification column 11 and carry out denitrogenation processing, and the gas by denitrogenation processing enters the second cryogen heat exchanger 10, low temperature second
Cryogen carries out heat exchange with gas, and the second cryogen after heating enters the first cooling device 5, carries out first cooling processing, passes through
The second cryogen to cool down for the first time returns to the second cooling device 8 and carries out cooling processing again, again the low temperature after the completion of cooling processing
Second cryogen again flows into the second cryogen heat exchanger 10, while liquefied gaseous state lighter hydrocarbons enter liquified natural gas tank 9, wireless communication
The natural gas liquefaction data detected are sent to monitor terminal by 19 timing of chip.
In order to further increase the working efficiency of natural gas liquefaction, processor 18 and wireless communication chips 19, touch screen 15,
Loudspeaker 17 and gas sensor 14 are electrically connected, and natural gas tank 1 is connected with filter device 2 by pipeline, filter device 2 and first cold
Agent heat exchanger 13 is connected by pipeline, and the first cryogen heat exchanger 13 is connected with the first cooling device 5 and knockout drum 12 by pipeline,
Knockout drum 12 is connected with the first cryogen heat exchanger 13 and denitrification column 11 by pipeline, and denitrification column 11 and the second cryogen heat exchanger 10 are logical
Piping is connected, and the second cryogen heat exchanger 10 is connected with liquified natural gas tank 9 by pipeline, the second cryogen heat exchanger 10 and first
Cooling device 5 is connected with the second cooling device 8 by pipeline.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.
Claims (7)
1. a kind of two refrigerants liquefaction system of natural gas, it is characterised in that：Including natural gas tank (1), filter device (2), separation
Tank (12), the first cooling device (5), control cabinet (16), natural gas tank (1) side are provided with the filter device (2), institute
It states filter device (2) and is internally provided with filled layer (3), the filled layer (3) is provided with filter far from the natural gas tank (1) side
Film (4), the filter membrane (4) are provided with gas sensor (14) far from the filled layer (3) side, and the filter device (2) is remote
The natural gas tank (1) side is provided with the first cryogen heat exchanger (13), is arranged above the first cryogen heat exchanger (13)
There is first cooling device (5), first cooling device (5) includes cooler (6) and compressor (7), and described first is cold
Agent heat exchanger (13) is provided with the knockout drum (12) far from the filter device (2) side, is set inside the knockout drum (12)
It is equipped with the gas sensor (14), the knockout drum (12) is provided with denitrogenation far from the first cryogen heat exchanger (13) side
Tower (11), the denitrification column (11) are internally provided with the gas sensor (14), and the denitrification column (11) is far from the separation
Tank (12) side is provided with the second cryogen heat exchanger (10), and the second cooling dress is provided with above the second cryogen heat exchanger (10)
It sets (8), second cooling device (8) includes the cooler (6) and the compressor (7), the second cryogen heat exchanger
(10) denitrification column (11) side is provided with liquified natural gas tank (9), control cabinet (16) front is provided with touch
Screen (15) and loudspeaker (17), the control cabinet (16) are internally provided with processor (18) and wireless communication chips (19).
2. a kind of two refrigerants liquefaction system of natural gas according to claim 1, it is characterised in that：The processor (18)
It is electrically connected with the wireless communication chips (19), the touch screen (15), the loudspeaker (17) and the gas sensor (14).
3. a kind of two refrigerants liquefaction system of natural gas according to claim 1, it is characterised in that：The natural gas tank
(1) it is connected by pipeline with the filter device (2), the filter device (2) passes through with the first cryogen heat exchanger (13)
Pipeline is connected.
4. a kind of two refrigerants liquefaction system of natural gas according to claim 1, it is characterised in that：First cryogen changes
Hot device (13) is connected with first cooling device (5) and the knockout drum (12) by pipeline.
5. a kind of two refrigerants liquefaction system of natural gas according to claim 1, it is characterised in that：The knockout drum (12)
It is connected by pipeline with the first cryogen heat exchanger (13) and the denitrification column (11).
6. a kind of two refrigerants liquefaction system of natural gas according to claim 1, it is characterised in that：The denitrification column (11)
It is connected by pipeline with the second cryogen heat exchanger (10), the second cryogen heat exchanger (10) and the liquified natural gas tank
(9) it is connected by pipeline.
7. a kind of two refrigerants liquefaction system of natural gas according to claim 1, it is characterised in that：Second cryogen changes
Hot device (10) is connected with first cooling device (5) and second cooling device (8) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721793099.0U CN207907583U (en) | 2017-12-20 | 2017-12-20 | A kind of two refrigerants liquefaction system of natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721793099.0U CN207907583U (en) | 2017-12-20 | 2017-12-20 | A kind of two refrigerants liquefaction system of natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207907583U true CN207907583U (en) | 2018-09-25 |
Family
ID=63567987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721793099.0U Expired - Fee Related CN207907583U (en) | 2017-12-20 | 2017-12-20 | A kind of two refrigerants liquefaction system of natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207907583U (en) |
-
2017
- 2017-12-20 CN CN201721793099.0U patent/CN207907583U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20181220 |