CN205560284U - Continuous pressure regulating system of liquefied natural gas - Google Patents
Continuous pressure regulating system of liquefied natural gas Download PDFInfo
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- CN205560284U CN205560284U CN201620245893.0U CN201620245893U CN205560284U CN 205560284 U CN205560284 U CN 205560284U CN 201620245893 U CN201620245893 U CN 201620245893U CN 205560284 U CN205560284 U CN 205560284U
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Abstract
The utility model discloses a continuous pressure regulating system of liquefied natural gas, including be responsible for, branch pipe no. 1, branch pipe no. 2, the middle section of being responsible for is equipped with branch pipe no. 1 and branch pipe no. 2, the person in charge is last to be equipped with the import and to export, be equipped with first ball valve, first manometer, filter and flowmeter on person in charge's import to the person in charge highway section of branch pipe no. 1, branch pipe no. 2 in proper order, be equipped with first butterfly valve, voltage regulator, second manometer, blow -down valve and second butterfly valve on branch pipe no. 1 and the branch pipe no. 2 respectively in proper order, branch pipe no. 1 is equipped with exhaust stack and third manometer with meet to the export of being responsible for of branch pipe no. 2 in proper order, is equipped with the safe valve that diffuses on the exhaust stack. The utility model discloses a technique aim at provide a pressure regulating in succession, continuous operation nature is good, maintenance is convenient continuous pressure regulating system of liquefied natural gas, and this kind of liquefied natural gas pressure regulating system can also the volume of increasing the gas transmission.
Description
Technical field
This utility model relates to liquefied natural gas facility, particularly a kind of liquefied natural gas continuous voltage regulating system.
Background technology
Liquefied natural gas is the cleaning of a kind of ultralow temperature, the efficient energy, and its temperature is-163 DEG C, due to its environment-friendly high-efficiency, is increasingly favored, as the preferred fuels of a lot of equipment.
Liquefied natural gas is required for carrying out pressure regulation at course of conveying and to the gas transmission process of various gas equipments, and the seriality of existing liquefied natural gas voltage-regulating system pressure regulation is bad, needed to stop the supple of gas or steam voltage-regulating system goes wrong when maintenance, thus affects normal production activity；And after the voltage-regulating system of natural gas has used a period of time, being also required to when maintaining voltage-regulating system allow voltage-regulating system quit work, continuous workability is poor, so that the work efficiency of voltage-regulating system reduces.
Utility model content
The deficiency existed for above-mentioned liquefied natural gas voltage-regulating system, technical purpose of the present utility model be provide one can continuous voltage regulating, continuous Workable, maintain convenient liquefied natural gas continuous voltage regulating system, this liquefied natural gas voltage-regulating system can also increase displacement.
This utility model is achieved through the following technical solutions:
A kind of liquefied natural gas continuous voltage regulating system, including supervisor, arm one, arm two, the stage casing of described supervisor is provided with arm one and arm two, described supervisor is provided with inlet and outlet, described supervisor's import is to arm one, it is sequentially provided with the first ball valve on the supervisor section of arm two, first Pressure gauge, filter and effusion meter, the first butterfly valve it is sequentially provided with respectively on described arm one and arm two, pressure regulator, second Pressure gauge, drain valve and the second butterfly valve, described arm one is sequentially provided with exhaust stack and the 3rd Pressure gauge with the meet of arm two to the outlet being responsible for, exhaust stack is provided with Safety relief valve.
In technique scheme, by being provided with arm one and arm two on supervisor, and it is respectively equipped with pressure regulator on arm one and arm two, make when the liquefied natural gas in pipeline is carried out pressure regulation, pressure regulation can be carried out respectively by arm one/arm two, it also is able to carry out pressure regulation by arm one and arm two simultaneously, liquefied natural gas voltage-regulating system can be worked continuously, conveniently maintain, at the displacement that can be increased liquefied natural gas voltage-regulating system by arm one and arm two when carrying out pressure regulation simultaneously；The first ball valve being provided with can cut off the import department of supervisor, the pressure that first Pressure gauge can record when not carrying out pressure regulation in supervisor, impurity in supervisor can be filtered by filter, avoiding the work of equipment in impurity effect voltage-regulating system, effusion meter is used as to measure the amount of the medium after pressure regulation；The first butterfly valve being provided with can control the flow direction of liquefied natural gas; second Pressure gauge can record the pressure after pressure regulator carries out pressure regulation in pipeline; drain valve can the most excessive in pipeline time carry out the protection pressure release to pipeline discharge; second butterfly valve can cut off the end of arm; liquefied natural gas is avoided to flow backward in arm one/arm two; and the 3rd Pressure gauge being provided with in main line exit can record final pressure medium; pressure medium when particularly arm one and arm two work the most simultaneously, the pressure medium that accuracy-control system is discharged.
Further, the supervisor between described first ball valve and the first Pressure gauge is provided with exhaust stack, and exhaust stack is provided with Safety relief valve.
In technique scheme, the exhaust stack that the supervisor between the first ball valve and the first Pressure gauge is provided with and Safety relief valve, it is possible to when pressure in pipeline is excessive, pipe-line system is protected, it is to avoid the generation of accident.
Further, described pressure regulator is axial flow pressure regulator/indirect-action type pressure regulator, and indirect-action type pressure regulator is double-membrane structure.
In technique scheme, axial flow pressure regulator seals tightly, negotiability is big, pressure regulation is stable, and pressure regulator internals are rustless steel manufacture, and service life is longer, the most relatively reliable；The pressure regulation of the indirect-action type pressure regulator of double-membrane structure is more stable, more accurately.
Further, described flow is calculated as coriolis mass flowmeters.
In technique scheme, effusion meter is set to coriolis mass flowmeters so that the flow measured is more accurate, and coriolis mass flowmeters is more suitable for the measurement of liquefied natural gas compared to other effusion meters.
Further, described first butterfly valve and the second butterfly valve are side-mounted ultralow temperature butterfly valve, and the carbon fiber that is sealed into of described side-mounted ultralow temperature butterfly valve weaves packing_seal.
In technique scheme, it is side-mounted ultralow temperature butterfly valve by the first butterfly valve and the second butterfly valve will be stated, and uses carbon fiber to weave packing_seal so that seal relatively reliable, more resistant to low temperature.
Further, described filter is rustless steel low-temperature filter, and filter uses wedge shape filter screen.
In technique scheme, by filter is set to rustless steel low-temperature filter, filter uses wedge shape filter screen so that the cryogenic property of filter is good, and intensity is higher.
The beneficial effects of the utility model are:
1, by being provided with arm one and arm two on supervisor, and it is respectively equipped with pressure regulator on arm one and arm two, make when the liquefied natural gas in pipeline is carried out pressure regulation, pressure regulation can be carried out respectively by arm one/arm two, it also is able to carry out pressure regulation by arm one and arm two simultaneously, liquefied natural gas voltage-regulating system can be worked continuously, conveniently maintain, at the displacement that can be increased liquefied natural gas voltage-regulating system by arm one and arm two when carrying out pressure regulation simultaneously；
2, by pressure regulator being set to axial flow pressure regulator/indirect-action type pressure regulator, indirect-action type pressure regulator is double-membrane structure, and axial flow pressure regulator seals tightly, negotiability is big, pressure regulation is stable, and pressure regulator internals are rustless steel manufacture, service life is longer, the most relatively reliable；The pressure regulation of the indirect-action type pressure regulator of double-membrane structure is more stable, more accurately；
3, pass through to state the first butterfly valve and the second butterfly valve is side-mounted ultralow temperature butterfly valve, and use carbon fiber to weave packing_seal so that seal relatively reliable, more resistant to low temperature；
4, by filter is set to rustless steel low-temperature filter, filter uses wedge shape filter screen so that the cryogenic property of filter is good, and intensity is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of liquefied natural gas continuous voltage regulating system of the present utility model.
Labelling in figure: 1 be the first ball valve, 2 be filter, 3 be the 3rd Pressure gauge, 4 be effusion meter, 5 be the first Pressure gauge, 6 be the first butterfly valve, 7 be pressure regulator, 8 be the second Pressure gauge, 9 be drain valve, 10 be the second butterfly valve, A be arm one, B be arm two.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in detail.
nullLiquefied natural gas continuous voltage regulating system as shown in Figure 1，Including the first ball valve 1、Filter 2、3rd Pressure gauge 3、Effusion meter 4、First Pressure gauge 5、First butterfly valve 6、Pressure regulator 7、Second Pressure gauge 8、Drain valve 9、Second butterfly valve 10、Arm one A、Arm two B，The stage casing of described supervisor is provided with arm one A and arm two B，Supervisor and arm one A、Arm two B can be selected for stainless-steel vacuum pipe，The gasification of liquefied natural gas can be reduced，Described supervisor is provided with inlet and outlet，Described supervisor's import is to arm one A、The first ball valve 1 it is sequentially provided with on the supervisor section of arm two B、First Pressure gauge 5、Filter 2 and effusion meter 4，The first butterfly valve 6 it is sequentially provided with respectively on described arm one A and arm two B、Pressure regulator 7、Pressure gauge 8、Drain valve 9 and the second butterfly valve 10，The meet of described arm one A and arm two B is sequentially provided with exhaust stack and the 3rd Pressure gauge 3 to the outlet of supervisor，Exhaust stack is provided with Safety relief valve.
Supervisor between described first ball valve 1 and the first Pressure gauge 5 is provided with exhaust stack, and exhaust stack is provided with Safety relief valve.
Described pressure regulator 7 is axial flow pressure regulator/indirect-action type pressure regulator, and indirect-action type pressure regulator is double-membrane structure, generally uses the axial flow pressure regulator of novel structure.
Described effusion meter 4 is coriolis mass flowmeters.
Described first butterfly valve 6 and the second butterfly valve 10 are side-mounted ultralow temperature butterfly valve, and the carbon fiber that is sealed into of described side-mounted ultralow temperature butterfly valve weaves packing_seal.
Described filter 2 is rustless steel low-temperature filter, and filter uses wedge shape filter screen, and filter is provided with pressure reduction control, timing controlled automatic cleaning filter core.
By being provided with arm one A and arm two B on supervisor, and it is respectively equipped with pressure regulator 7 on arm one A and arm two B, make when the liquefied natural gas in pipeline is carried out pressure regulation, pressure regulation can be carried out respectively by arm one A and arm two B, it also is able to carry out pressure regulation by arm one A and arm two B simultaneously, liquefied natural gas voltage-regulating system can be worked continuously, conveniently maintain, at the displacement that can be increased liquefied natural gas voltage-regulating system by arm one A and arm two B when carrying out pressure regulation simultaneously；The first ball valve 1 being provided with can cut off the import department of supervisor, the pressure that first Pressure gauge 5 can record when not carrying out pressure regulation in supervisor, impurity in supervisor can be filtered by filter 2, the work of equipment in impurity effect voltage-regulating system, effusion meter 4 is avoided to be used as the amount of the medium after pressure regulation is measured；The first butterfly valve 6 being provided with can control the flow direction of liquefied natural gas; second Pressure gauge 8 can record the pressure after pressure regulator 7 carries out pressure regulation in pipeline; drain valve 9 can the most excessive in pipeline time carry out the protection pressure release to pipeline discharge; second butterfly valve 10 can cut off the end of arm; liquefied natural gas is avoided to flow backward in arm one A and arm two B; and the 3rd Pressure gauge 3 being provided with in main line exit can record final pressure medium; pressure medium when particularly arm one A and arm two B works the most simultaneously, the pressure medium that accuracy-control system is discharged.
By pressure regulator 7 is set to axial flow pressure regulator, axial flow pressure regulator seals tightly, negotiability is big, pressure regulation is stable, and pressure regulator 7 internals are rustless steel manufacture, and service life is longer, the most relatively reliable；It is side-mounted ultralow temperature butterfly valve by the first butterfly valve 6 and the second butterfly valve 10 will be stated, and uses carbon fiber to weave packing_seal so that seal relatively reliable, more resistant to low temperature；By filter 2 is set to rustless steel low-temperature filter, filter uses wedge shape filter screen so that the cryogenic property of filter is good, and intensity is higher.
The regulative mode of liquefied natural gas continuous voltage regulating system of the present utility model:
1, pressure regulation is carried out by one of arm one A/ arm two B, select arm one A to carry out pressure regulation herein, open the first ball valve 1, close the first butterfly valve 6 and the second butterfly valve 10 on arm two B, open the first butterfly valve 6 and the second butterfly valve 10 on arm one A, make liquefied natural gas in supervisor enters into arm one A, and after pressure regulator 7 pressure regulation, the pressure after pressure regulation is understood by the second Pressure gauge 8, again through the 3rd Pressure gauge 3 from the outlet output of supervisor, if there being abnormal conditions, can be tackled by the valve on blinding off a line, when pressure in pipeline is excessive, can be discharged by drain valve.When only carrying out pressure regulation with arm two B, regulative mode is the most identical, and this regulative mode enables to the pressure regulator 7 of voltage-regulating system and arm the using and the reserved so that voltage-regulating system can continuous voltage regulating.
2, carry out pressure regulation by arm one A and arm two B simultaneously, open the first ball valve 1 and the first butterfly valve 6 and the second butterfly valve 10 opening on arm one A, arm two B, after making liquefied natural gas pass through pressure regulator 7 pressure regulation on arm one A and arm two B, converge and enter in supervisor, and after the pressure measurement of the 3rd Pressure gauge 3, export voltage-regulating system, the circulation that this voltage regulating mode enables to voltage-regulating system is bigger, it is possible to increase displacement.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (6)
1. a liquefied natural gas continuous voltage regulating system, it is characterized in that, including supervisor, arm one (A), arm two (B), the stage casing of described supervisor is provided with arm one (A) and arm two (B), described supervisor is provided with inlet and outlet, described supervisor's import is to arm one (A), the first ball valve (1) it is sequentially provided with on the supervisor section of arm two (B), first Pressure gauge (5), filter (2) and effusion meter (4), the first butterfly valve (6) it is sequentially provided with respectively on described arm one (A) and arm two (B), pressure regulator (7), second Pressure gauge (8), drain valve (9) and the second butterfly valve (10), described arm one (A) is sequentially provided with exhaust stack and the 3rd Pressure gauge (3) with the meet of arm two (B) to the outlet being responsible for, exhaust stack is provided with Safety relief valve.
2. liquefied natural gas continuous voltage regulating system as claimed in claim 1, it is characterised in that the supervisor between described first ball valve (1) and the first Pressure gauge (5) is provided with exhaust stack, and exhaust stack is provided with Safety relief valve.
3. liquefied natural gas continuous voltage regulating system as claimed in claim 2, it is characterised in that described pressure regulator (7) is axial flow pressure regulator/indirect-action type pressure regulator, and indirect-action type pressure regulator is double-membrane structure.
4. liquefied natural gas continuous voltage regulating system as claimed in claim 3, it is characterised in that described effusion meter (4) is coriolis mass flowmeters.
5. liquefied natural gas continuous voltage regulating system as claimed in claim 1, it is characterised in that described first butterfly valve (6) and the second butterfly valve (10) are side-mounted ultralow temperature butterfly valve, the carbon fiber that is sealed into of described side-mounted ultralow temperature butterfly valve weaves packing_seal.
6. liquefied natural gas continuous voltage regulating system as claimed in claim 1, it is characterised in that described filter (2) is rustless steel low-temperature filter, and filter uses wedge shape filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620245893.0U CN205560284U (en) | 2016-03-29 | 2016-03-29 | Continuous pressure regulating system of liquefied natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620245893.0U CN205560284U (en) | 2016-03-29 | 2016-03-29 | Continuous pressure regulating system of liquefied natural gas |
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| Publication Number | Publication Date |
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| CN205560284U true CN205560284U (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620245893.0U Ceased CN205560284U (en) | 2016-03-29 | 2016-03-29 | Continuous pressure regulating system of liquefied natural gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641708A (en) * | 2016-11-07 | 2017-05-10 | 山东新兴重工科技发展有限公司 | Small natural gas gasification pry |
| CN107388037A (en) * | 2017-08-08 | 2017-11-24 | 盘锦奥德燃气装备制造有限公司 | Novel voltage-regulating batch meter |
| WO2019022678A1 (en) * | 2017-07-26 | 2019-01-31 | Ptt Public Company Limited | Gas metering and regulating station for hdpe pipeline network |
| CN111174095A (en) * | 2020-01-06 | 2020-05-19 | 阜阳国祯燃气有限公司 | Natural gas conveying airflow pressure regulating system |
| CN113757562A (en) * | 2021-08-24 | 2021-12-07 | 广东欧文莱陶瓷有限公司 | Natural gas supply system and natural gas environmental protection ceramic brick kiln |
-
2016
- 2016-03-29 CN CN201620245893.0U patent/CN205560284U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641708A (en) * | 2016-11-07 | 2017-05-10 | 山东新兴重工科技发展有限公司 | Small natural gas gasification pry |
| WO2019022678A1 (en) * | 2017-07-26 | 2019-01-31 | Ptt Public Company Limited | Gas metering and regulating station for hdpe pipeline network |
| CN107388037A (en) * | 2017-08-08 | 2017-11-24 | 盘锦奥德燃气装备制造有限公司 | Novel voltage-regulating batch meter |
| CN111174095A (en) * | 2020-01-06 | 2020-05-19 | 阜阳国祯燃气有限公司 | Natural gas conveying airflow pressure regulating system |
| CN113757562A (en) * | 2021-08-24 | 2021-12-07 | 广东欧文莱陶瓷有限公司 | Natural gas supply system and natural gas environmental protection ceramic brick kiln |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20200629 Decision number of declaring invalidation: 45024 Granted publication date: 20160907 |
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| IW01 | Full invalidation of patent right |