CN207179176U - A kind of LNG satellite stations air supply system - Google Patents
A kind of LNG satellite stations air supply system Download PDFInfo
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- CN207179176U CN207179176U CN201720226948.8U CN201720226948U CN207179176U CN 207179176 U CN207179176 U CN 207179176U CN 201720226948 U CN201720226948 U CN 201720226948U CN 207179176 U CN207179176 U CN 207179176U
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- metering
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- bog
- pressure regulation
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Abstract
It the utility model is related to a kind of LNG satellite stations air supply system, including storage tank, the storage tank has been sequentially connected with air temperature type vaporizer, water-bath type NG heaters and pressure regulation metering by liquid-phase tube and prized, the output end of storage tank is connected with BOG heaters by BOG pipes, the BOG heaters connect with pressure regulation metering sled, form BOG recovery path；The pressure regulation metering sled includes the first voltage-regulating system and the second voltage-regulating system, first voltage-regulating system connects the BOG heaters, second voltage-regulating system connects the water-bath type NG heaters, the output end of first voltage-regulating system and the second voltage-regulating system is connected with metering system, and the metering system connects combustion gas city planting ductwork.BOG in LNG satellite stations storage tank can be recovered to combustion gas city planting ductwork when LNG satellite stations repair, improve satellite station combustion gas waste and gas pollution phenomenon by BOG heating paths of the present utility model independently of LNG heating paths.
Description
Technical field
It the utility model is related to supply and the control technology field of natural gas, and in particular to a kind of LNG satellite stations supply system
System.
Background technology
Recently as developing rapidly for Chinese liquefied natural gas (LNG) industry, all parts of the country have built more than 200 in succession
LNG satellite stations.LNG satellite stations, also known as liquefied natural gas（LNG）Stand, be the main yard of cities and towns liquefied natural gas supply, be one
The small-sized LNG of kind reception, storage, gasification station, it is the new highlight of gas utilization.BOG, refer to that LNG evaporates under low-temperature condition
Cryogenic gas.In LNG satellite stations, BOG need to be converted into normal-temperature natural-gas by heater, be transported to city planting ductwork user.
However, the pipeline of BOG heaters by the pipeline of LNG heaters with being shared in LNG satellite stations, when LNG satellite stations repair
Operating mode when, the BOG in LNG storage tank, because city planting ductwork can not be pipelined to, emptying process need to be taken, caused a large amount of
Natural gas waste while pollute surrounding environment.
Therefore, it is necessary to research and develop a kind of LNG satellite stations air supply system, the air supply system can effectively utilize LNG satellite stations
BOG, improve combustion gas waste and gas pollution phenomenon caused by when satellite station repairs.
The content of the invention
For the above situation, the purpose of this utility model is to provide a kind of LNG satellite stations air supply system, the LNG satellites
Stand air supply system BOG heating paths independently of LNG heating paths, can be when LNG satellite stations repair by LNG satellite stations storage tank
BOG be recovered to combustion gas city planting ductwork, improve satellite station combustion gas waste and gas pollution phenomenon.
The technical solution of the utility model is：A kind of LNG satellite stations air supply system, including storage tank, the storage tank pass through liquid
Phase pipe has been sequentially connected with air temperature type vaporizer, water-bath type NG heaters and pressure regulation metering sled, the output end of storage tank and managed by BOG
BOG heaters are connected with, the BOG heaters connect with pressure regulation metering sled, form BOG recovery path；The pressure regulation meter
Amount, which is prized, includes the first voltage-regulating system and the second voltage-regulating system, the first voltage-regulating system connection BOG heaters, and described second
The output end of the voltage-regulating system connection water-bath type NG heaters, the first voltage-regulating system and the second voltage-regulating system is connected with metering system
System, the metering system connect combustion gas city planting ductwork.
Preferably, first voltage-regulating system include the first pressure regulation pipeline parallel with one another, the second pressure regulation pipeline and
Identical filter, pressure regulator and pressure are respectively arranged with 3rd pipeline, the first pressure regulation pipeline and the second pressure regulation pipeline
Power table, the 3rd pipeline are provided with stop valve and the pressure gauge.
Preferably, second voltage-regulating system is provided with and the first pressure regulation of the first voltage-regulating system identical pipeline, the
Two pressure regulation pipelines and the 3rd pipeline, and second voltage-regulating system is in parallel with first voltage-regulating system.
Preferably, the metering system includes the first metering pipeline parallel with one another, the second metering pipeline and the 3rd
Metering pipeline, identical flowmeter, the input of flowmeter are respectively arranged with first metering pipeline and the second metering pipeline
Output both ends are equipped with ball valve, and the 3rd pipeline is provided with the ball valve.
Preferably, the input of first voltage-regulating system, the second voltage-regulating system and metering system is equipped with pressure
Transmitter and temperature transmitter.
Preferably, the air temperature type vaporizer, water-bath type NG heaters, BOG heaters and pressure regulation metering sled are upper equal
It is provided with safety valve.
Preferably, the storage tank, air temperature type vaporizer, water-bath type NG heaters, BOG heaters and pressure regulation metering sled
Output end be equipped with pressure gauge.
Preferably, the output end of the pressure regulation metering sled is also associated with plus smelly system, described plus smelly system are smelly including adding
Tank and compression pump, the output end of the compression pump is connected with plus smelly pressure gauge.
From the above, it is seen that the beneficial effects of the utility model：
1st, the utility model BOG heating paths are independently of LNG heating paths, when LNG satellite stations repair, in storage tank
BOG can be recovered to combustion gas city planting ductwork by the discharge of BOG pipes in time, reduce the pressure hazard of LNG satellite stations inner storage tank, subtract simultaneously
Combustion gas waste and gas pollution phenomenon caused by few BOG discharges；
2nd, the output end of each part is equipped with pressure gauge in whole LNG satellite stations air supply system, can monitor supply system at any time
Pressure change in system, it is convenient to pinpoint the problems in time, and adjust.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is connection diagram of the present utility model；
Fig. 2 is the enlarged drawing of the utility model pressure regulation metering sled.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme carries out clear, complete description.Obviously, described embodiment is only the utility model part of the embodiment, rather than
Whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work
On the premise of obtained by all other embodiment, belong to the scope that the utility model is protected.
With reference to Fig. 1, a kind of LNG satellite stations air supply system, including storage tank 1, the storage tank 1 are sequentially connected with by liquid-phase tube 11
There are air temperature type vaporizer 2, water-bath type NG heaters 3 and pressure regulation metering sled 4, the output end of storage tank 1 is connected with by BOG pipes 12
BOG heaters 5, the BOG heaters 5 are connected with pressure regulation metering sled 4, form BOG recovery path；The pressure regulation metering sled
4 include the first voltage-regulating system and the second voltage-regulating system, and first voltage-regulating system connects the BOG heaters 5, and described second adjusts
The output end of the pressure system connection water-bath type NG heaters 3, the first voltage-regulating system and the second voltage-regulating system is connected with metering system
System 42, the metering system 42 connect combustion gas city planting ductwork.
First voltage-regulating system includes the first pressure regulation pipeline 41-1, the second pressure regulation pipeline 41-2 parallel with one another and the
Identical filter 6 is respectively arranged with three pipeline 41-3, the first pressure regulation pipeline 41-1 and the second pressure regulation pipeline 41-2, is adjusted
Depressor 7 and pressure gauge 8, the 3rd pipeline 41-3 are provided with stop valve 9 and the pressure gauge 8.The second pressure regulation system
System is provided with and the first voltage-regulating system identical the first pressure regulation pipeline 41-1, the second pressure regulation pipeline 41-2 and the 3rd pipeline
41-3, and second voltage-regulating system is in parallel with first voltage-regulating system, the first voltage-regulating system metering flows into combustion gas city
The BOG mass of political affairs pipe network, the second voltage-regulating system metering flow into the LNG mass of combustion gas city planting ductwork, facilitate periodic statistical every
The recovery quality in year BOG, when the filter 6 on the first pressure regulation pipeline 41-1, the second pressure regulation pipeline 41-2, pressure regulator 7 need more
When changing or repairing, in order to ensure not influence BOG recovery, the stop valve 9 on the 3rd pipeline 41-3 can be opened.
The metering system includes the first metering pipeline 42-1 parallel with one another, the second metering pipeline 42-2 and the 3rd meter
Identical flowmeter 10 is respectively arranged with buret road 42-3, the first metering pipeline 42-1 and the second metering pipeline 42-2,
The input and output both ends of flowmeter 10 are equipped with ball valve 13, and the 3rd pipeline 42-3 is provided with the ball valve 13, when the first metering
When flowmeter on pipeline 42-1, the second metering pipeline 42-2 needs repairing or changed, the 3rd pipeline 42-3 ball valve 13 is opened,
The BOG stability and controllability that are recovered to combustion gas city planting ductwork is formed, reduces BOG discharge.
The input of first voltage-regulating system, the second voltage-regulating system and metering system is equipped with the and of pressure transmitter 81
Temperature transmitter 82, accurate recording and the gas pressure and temperature for being conveyed into pressure regulation metering sled 4.
It is provided with the air temperature type vaporizer 2, water-bath type NG heaters 3, BOG heaters 5 and pressure regulation metering sled 4
Safety valve 14, the storage tank 1, air temperature type vaporizer 2, water-bath type NG heaters 3, BOG heaters 5 and pressure regulation metering prize 4
Output end is equipped with pressure gauge 8, when the pressure of pressure gauge 8 is excessive, opens corresponding safety valve 14, prevents system equipment pressure
It is excessive to cause to damage equipment.
The output end of the pressure regulation metering sled 4 is also associated with plus smelly system 20, described plus smelly system 20 include odorizing tank 21
And compression pump 22, the output end of the compression pump 22 is connected with plus smelly pressure gauge 23, before natural gas input combustion gas city planting ductwork
Carry out adding smelly processing, be easy to user to find gas leakage in time.
Working method：LNG in storage tank 1 is flowed out from liquid-phase tube 11, and combustion gas is fed to through overflash, heating, pressure regulation, metering
City planting ductwork, the BOG in storage tank 1 flow into BOG heaters 5 from BOG pipes 12 and are heated to be NG, finally enter combustion by pressure regulation, metering
Gas city planting ductwork.
Various embodiments above is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to foregoing
The utility model is described in detail each embodiment, it will be understood by those within the art that：It still can be with
Technical scheme described in foregoing embodiments is modified, either which part or all technical characteristic are equal
Replace；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technical scheme
Scope.
Claims (10)
1. a kind of LNG satellite stations air supply system, it is characterised in that including storage tank, the storage tank has been sequentially connected with by liquid-phase tube
Air temperature type vaporizer, water-bath type NG heaters and pressure regulation metering sled, the output end of storage tank are connected with BOG heating by BOG pipes
Device, the BOG heaters connect with pressure regulation metering sled, form BOG recovery path；The pressure regulation metering sled includes the first tune
Pressure system and the second voltage-regulating system, first voltage-regulating system connect the BOG heaters, and second voltage-regulating system connects institute
State water-bath type NG heaters, the output end of the first voltage-regulating system and the second voltage-regulating system is connected with metering system, the metering system
System connection combustion gas city planting ductwork.
2. a kind of LNG satellite stations as claimed in claim 1 air supply system, it is characterised in that first voltage-regulating system includes phase
Mutually the first pressure regulation pipeline, the second pressure regulation pipeline and the 3rd pipeline in parallel, the first pressure regulation pipeline and the second pressure regulation pipeline
On be respectively arranged with identical filter, pressure regulator and pressure gauge, the 3rd pipeline is provided with stop valve and the pressure
Power table.
3. a kind of LNG satellite stations as claimed in claim 1 or 2 air supply system, it is characterised in that second voltage-regulating system is provided with
With the first pressure regulation of the first voltage-regulating system identical pipeline, the second pressure regulation pipeline and the 3rd pipeline, and second pressure regulation
System is in parallel with first voltage-regulating system.
4. a kind of LNG satellite stations as claimed in claim 3 air supply system, it is characterised in that the metering system is included mutually simultaneously
The first metering pipeline, the second metering pipeline and the 3rd metering pipeline of connection, first metering pipeline and the second metering pipeline
On be respectively arranged with identical flowmeter, the input and output both ends of flowmeter are equipped with ball valve.
5. a kind of LNG satellite stations as claimed in claim 1 air supply system, it is characterised in that first voltage-regulating system, second are adjusted
The input of pressure system and metering system is equipped with pressure transmitter and temperature transmitter.
6. a kind of LNG satellite stations as claimed in claim 1 air supply system, it is characterised in that the air temperature type vaporizer is at least set
There are two, be connected in parallel on the output end of the storage tank respectively, the output end of air temperature type vaporizer is provided with temperature transmitter.
7. a kind of LNG satellite stations as claimed in claim 1 air supply system, it is characterised in that the air temperature type vaporizer, water-bath type
Safety valve is provided with NG heaters, BOG heaters and pressure regulation metering sled.
A kind of 8. LNG satellite stations air supply system as claimed in claim 1, it is characterised in that the storage tank, air temperature type vaporizer,
The output end of water-bath type NG heaters, BOG heaters and pressure regulation metering sled is equipped with pressure gauge.
A kind of 9. LNG satellite stations as claimed in claim 1 air supply system, it is characterised in that the output end of the pressure regulation metering sled
It is also associated with plus smelly system, described plus smelly system includes odorizing tank and compression pump, the output end of the compression pump, which is connected with, is added
Smelly pressure gauge.
10. a kind of LNG satellite stations as claimed in claim 4 air supply system, it is characterised in that the 3rd pipeline is provided with described
Ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226948.8U CN207179176U (en) | 2017-03-09 | 2017-03-09 | A kind of LNG satellite stations air supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226948.8U CN207179176U (en) | 2017-03-09 | 2017-03-09 | A kind of LNG satellite stations air supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207179176U true CN207179176U (en) | 2018-04-03 |
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ID=61733413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720226948.8U Active CN207179176U (en) | 2017-03-09 | 2017-03-09 | A kind of LNG satellite stations air supply system |
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| CN (1) | CN207179176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361209A (en) * | 2020-09-23 | 2021-02-12 | 北京强度环境研究所 | Liquid nitrogen vaporization voltage stabilizing system |
| CN117829791A (en) * | 2024-03-05 | 2024-04-05 | 成都秦川物联网科技股份有限公司 | Intelligent gas monitoring information processing method and system based on monitoring Internet of things |
-
2017
- 2017-03-09 CN CN201720226948.8U patent/CN207179176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361209A (en) * | 2020-09-23 | 2021-02-12 | 北京强度环境研究所 | Liquid nitrogen vaporization voltage stabilizing system |
| CN117829791A (en) * | 2024-03-05 | 2024-04-05 | 成都秦川物联网科技股份有限公司 | Intelligent gas monitoring information processing method and system based on monitoring Internet of things |
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