CN205480201U - Liquefied natural gas double - circuit precise measurement system - Google Patents
Liquefied natural gas double - circuit precise measurement system Download PDFInfo
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- CN205480201U CN205480201U CN201620245891.1U CN201620245891U CN205480201U CN 205480201 U CN205480201 U CN 205480201U CN 201620245891 U CN201620245891 U CN 201620245891U CN 205480201 U CN205480201 U CN 205480201U
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Abstract
The utility model discloses a liquefied natural gas double - circuit precise measurement system, including be responsible for, branch pipe no. 1, branch pipe no. 2 and branch pipe no. 3, the person in charge's branch point anterior segment is equipped with first relief valve, first manometer in proper order, branch pipe no. 1 and branch pipe no. 2 join mutually to the back end of being responsible for on, be equipped with the branch pipe of being connected with branch pipe no. 2 no. 3 on the branch pipe no. 1, the both ends of branch pipe no. 3 are connected respectively between the second manometer and third ball valve on branch pipe no. 1, branch pipe no. 2, are equipped with the 5th ball valve on the branch pipe no. 3, the dare tower crust flowmeter of flowmeter for being equipped with lithium cell, data interface, memory and signal interface, the lithium cell links respectively has MCU, the dare tower clings to sensor, LED display screen, and MCU even has data interface, signal interface, memory, LED display screen, dare tower crust sensor. The utility model discloses a technique aim at provide one kind have double - circuit precise measurement structure, make things convenient for maintenance and maintenance, liquefied natural gas double - circuit precise measurement system that continuous operation nature is good.
Description
Technical field
This utility model relates to liquefied natural gas facility system, particularly a kind of liquefied natural gas two-way accurate metering 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 needs to measure accurately in the course of conveying of medium, and the accurate measurement of liquefied natural gas is conducive to the fair and reasonable of LNG Trade.But, metering in the air delivering pipeline system of traditional liquefied natural gas generally uses the metering method of single-pipeline, and need to stop the supple of gas or steam maintenance when effusion meter breaks down, thus reduce the speed of production, traditional delivery pipeline system is when the big flow of needs, it is impossible to the rate-of flow in enough pipe-line systems of increase in time.
Utility model content
The deficiency existed for above-mentioned liquefied natural gas system, technical purpose of the present utility model is to provide and a kind of has two-way accurate measurement structure, facilitates the liquefied natural gas two-way accurate metering system of C&M, continuous Workable.
This utility model is achieved through the following technical solutions:
A kind of liquefied natural gas two-way accurate metering system, it is characterized in that, including supervisor, arm one, arm two and arm three, described supervisor is arranged with arm one, arm two, the branch point leading portion of supervisor is sequentially provided with the first relief valve, first Pressure gauge, described arm one is sequentially provided with the first ball valve on arm two respectively, filter, effusion meter, second ball valve, second Pressure gauge, 3rd ball valve, pressure regulator, 3rd Pressure gauge and the 4th ball valve, described arm one and arm two converge to mutually on the back segment of supervisor, the back segment of supervisor is provided with the 4th Pressure gauge and Safety relief valve；Described arm one is provided with the arm three being connected with arm two, and the two ends of arm three are connected between the second Pressure gauge on arm one, arm two and the 3rd ball valve, and arm three is provided with the 5th ball valve；
Described flow is calculated as Deltaflow meter, described Deltaflow meter is provided with lithium battery, data-interface, memorizer and signaling interface, lithium battery is connected with MCU, Delta bar sensor, LED display respectively, MCU is connected with data-interface, signaling interface, memorizer, LED display, Delta bar sensor, and described lithium battery is arranged on the outside of Deltaflow meter.
In technique scheme, by being provided with arm one, arm two, arm three, make can pass through respectively arm one when pumped (conveying) medium, arm two carries out medium conveying, also can arm one, arm two is worked in coordination by arm three and is carried medium, this mode of movement can be: closes the first ball valve on arm one, second ball valve, open the 3rd ball valve, 4th ball valve, open the first ball valve on arm two, second ball valve, close the 3rd ball valve, 4th ball valve, open the 5th ball valve on arm three, make medium from being responsible for the first ball valve through arm two, second ball valve place pipeline section, again through arm three, by the 3rd ball valve on arm one, 4th ball valve place pipeline section, flow into supervisor to transfer out, the first half section of arm one can also be first passed through in turn, second half section through arm two flows to supervisor again；Also the 5th ball valve on arm three can be closed so that arm one, arm two carry out pumped (conveying) medium simultaneously, thus quickly improve the conveying capacity of pipe-line system；Impurity can be filtered by the filter being provided with, it is ensured that the safe operation of system, and the pressure regulator being provided with can pressure in control system and output pressure, in order to the needs of cooperation natural gas facility.
By effusion meter is set to Deltaflow meter, Deltaflow meter is little to pipeline dynamic loss, and certainty of measurement is high, and operating cost is low, and the workload of installation is little, the advantage such as is not easily blocked；The devices such as MCU, Delta bar sensor, LED display can be powered by the lithium battery being provided with, the data signal transmission that measurement is arrived by Delta bar sensor is to MCU, the data that Delta bar sensor on arm one, arm two is recorded by MCU are added, data that Delta bar sensor on arm one, arm two is recorded by MCU and the data on flows after being added are sent to LED display, LED display shows corresponding flow value so that system pipeline person can know the conveying capacity of pipe-line system at any time；The data-interface being provided with can facilitate the derivation of data, in order to carries out data analysis；Memorizer can store the data recorded, for the inquiry when data process or calculate.
Further, described first ball valve, the second ball valve, the 3rd ball valve, the 4th ball valve, the 5th ball valve are cryogenic ball valve, the valve seat of described cryogenic ball valve uses rustless steel built-up welding cobalt base hard alloy, and cryogenic ball valve uses long neck structure, and the material of cryogenic ball valve valve body uses CF8.
In technique scheme; the sealing property of valve can be improved by valve seat being set to rustless steel built-up welding cobalt base hard alloy; the pressure born making valve is bigger; cryogenic ball valve uses long neck structure; filler can be protected; the material of cryogenic ball valve valve body uses CF8 to make valve also be able to keep reliable intensity at low temperatures, and will not be corroded.
Further, described first Pressure gauge, the second Pressure gauge, the 3rd Pressure gauge and the 4th Pressure gauge are the intelligent digital Pressure gauge being connected with MCU.
In technique scheme, the pressure in pipe-line system can accurately be measured by intelligent digital Pressure gauge, and it is connected with MCU, also can send the data recorded to MCU, process through MCU, pressure data is shown in LED display, and can store data in memorizer, in order to after having an accident, the pressure data in pipeline is analyzed.
Further, described MCU is 32 high performance MCU.
Further, the quantity of described lithium battery is two pieces, and one piece of lithium battery electric discharge practicality, another block is standby, so can improve persistence and the reliability of the work of metering system.
The beneficial effects of the utility model are:
1, by being provided with arm one, arm two, arm three, the mode that liquefied natural gas is carried is more, more flexible, arm one can be passed through respectively, arm two carries out medium conveying, also by arm one, arm two is worked in coordination by arm three and is carried medium, when making the equipment in arm one/arm two have partial destruction, media feed system also is able to normally work, so that metering system facilitates C&M, Workable continuously, arm one, the Deltaflow meter that arm two is provided with, make the loss of metering system pipeline dynamic little, certainty of measurement is high, operating cost is low, the workload installed is little, it is not easily blocked.
2, the sealing property of valve can be improved by valve seat being set to rustless steel built-up welding cobalt base hard alloy; the pressure born making valve is bigger; cryogenic ball valve uses long neck structure; filler can be protected; the material of cryogenic ball valve valve body uses CF8 to make valve also be able to keep reliable intensity at low temperatures, and will not be corroded.
3, the pressure in pipe-line system can accurately be measured by intelligent digital Pressure gauge, and it is connected with MCU, also can send the data recorded to MCU, process through MCU, pressure data is shown in LED display, and can store data in memorizer, in order to after having an accident, the pressure data in pipeline is analyzed.
Accompanying drawing explanation
Fig. 1 is the structural representation of liquefied natural gas two-way accurate metering system of the present utility model.
Labelling in figure: 1 be effusion meter, 2 be the first Pressure gauge, 3 be the first ball valve, 4 be the second ball valve, 5 be the second Pressure gauge, 6 be the 3rd ball valve, 7 be pressure regulator, 8 be the 3rd Pressure gauge, 9 be the 4th ball valve, 10 be the 4th Pressure gauge, 11 be the 5th ball valve, a be arm one, b be arm two, c be arm three.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in detail.
nullLiquefied natural gas two-way accurate metering system as shown in Figure 1，Including effusion meter 1、First Pressure gauge 2、First ball valve 3、Second ball valve 4、Second Pressure gauge 5、3rd ball valve 6、Pressure regulator 7、3rd Pressure gauge 8、4th ball valve 9、4th Pressure gauge 10、5th ball valve 11、Arm one a、Arm two b、Arm three c，Described supervisor is arranged with arm one a、Arm two b，Supervisor、Arm one a、Arm two b is respectively stainless-steel seamless pipe，The branch point leading portion of supervisor is sequentially provided with the first relief valve、First Pressure gauge 2，The first ball valve 3 it is sequentially provided with respectively on described arm one a and arm two b、Filter、Effusion meter 1、Second ball valve 4、Second Pressure gauge 5、3rd ball valve 6、Pressure regulator 7、3rd Pressure gauge 8 and the 4th ball valve 9，Described arm one a and arm two b converges to mutually on the back segment of supervisor，The back segment of supervisor is provided with the 4th Pressure gauge 10 and Safety relief valve；Described arm one a is provided with arm three c being connected with arm two b, and the two ends of arm three c are connected between the second Pressure gauge 5 and the 3rd ball valve 6 on arm one a, arm two b, and arm three c is provided with the 5th ball valve 11；
Described effusion meter 1 is Deltaflow meter, described Deltaflow meter is provided with lithium battery, data-interface, memorizer and signaling interface, lithium battery is connected with MCU, Delta bar sensor, LED display respectively, MCU is connected with data-interface, signaling interface, memorizer, LED display, Delta bar sensor, and described lithium battery is arranged on the outside of Deltaflow meter.
Described first ball valve the 3, second ball valve the 4, the 3rd ball valve the 6, the 4th ball valve the 9, the 5th ball valve 11 is cryogenic ball valve, the valve seat of described cryogenic ball valve uses rustless steel built-up welding cobalt base hard alloy, cryogenic ball valve uses long neck structure, the valve body material of cryogenic ball valve uses CF8, valve rod material selection 304 rustless steel.
Described first Pressure gauge the 2, second Pressure gauge the 5, the 3rd Pressure gauge 8 and the 4th Pressure gauge 10 are the intelligent digital Pressure gauge being connected with MCU；Described MCU is 32 high performance MCU；The quantity of described lithium battery is two pieces, and one piece of lithium battery electric discharge practicality, another block is standby, and lithium battery can be poly-lithium battery, and poly-lithium battery is safer.
nullBy being provided with arm one a、Arm two b、Arm three c，Make can pass through respectively arm one a when pumped (conveying) medium、Arm two b carries out medium conveying，Also can arm one a、Arm two b is worked in coordination by arm three c and carries medium，This mode of movement can be: closes the first ball valve 3 on arm one a、Second ball valve 4，Open the 3rd ball valve 6、4th ball valve 9，Open the first ball valve 3 on arm two b、Second ball valve 4，Close the 3rd ball valve 6、4th ball valve 9，Open the 5th ball valve 11 on arm three c，Make medium from being responsible for the first ball valve 3 through arm two b、Second ball valve 4 place pipeline section，Again through arm three c，By the 3rd ball valve 6 on arm one a、4th ball valve 9 place pipeline section，Flow into supervisor to transfer out，The first half section of arm one a can also be first passed through in turn，Second half section through arm two b flows to supervisor again；Also the 5th ball valve 11 on arm three c can be closed so that arm one a, arm two b carry out pumped (conveying) medium simultaneously, thus quickly improve the conveying capacity of pipe-line system；
By effusion meter is set to Deltaflow meter, Deltaflow meter is little to pipeline dynamic loss, and certainty of measurement is high, and operating cost is low, and the workload of installation is little, the advantage such as is not easily blocked；The devices such as MCU, Delta bar sensor, LED display can be powered by the lithium battery being provided with, the data signal transmission that measurement is arrived by Delta bar sensor is to MCU, the data that Delta bar sensor on arm one a, arm two b is recorded by MCU are added, data that Delta bar sensor on arm one a, arm two b is recorded by MCU and the data on flows after being added are sent to LED display, LED display shows corresponding flow value so that system pipeline person can know the conveying capacity of pipe-line system at any time；The data-interface being provided with can facilitate the derivation of data, in order to carries out data analysis；Memorizer can store the data recorded, for the inquiry when data process or calculate.
This liquefied natural gas accurate metering system makes to measure more accurate, and when device fails needs repairing or needs maintenance, system also is able to work, and the measuring accuracy of system is higher, workability is more preferable continuously, it is possible to adapting to bigger range of flow, the temperature range of adaptation is wider.
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 (5)
1. a liquefied natural gas two-way accurate metering system, it is characterized in that, including supervisor, arm one (a), arm two (b) and arm three (c), described supervisor is arranged with arm one (a), arm two (b), the branch point leading portion of supervisor is sequentially provided with the first relief valve, first Pressure gauge (2), the first ball valve (3) it is sequentially provided with respectively on described arm one (a) and arm two (b), filter, effusion meter (1), second ball valve (4), second Pressure gauge (5), 3rd ball valve (6), pressure regulator (7), 3rd Pressure gauge (8) and the 4th ball valve (9), described arm one (a) and arm two (b) converge to mutually on the back segment of supervisor, the back segment of supervisor is provided with the 4th Pressure gauge (10) and Safety relief valve；Described arm one (a) is provided with the arm three (c) being connected with arm two (b), the two ends of arm three (c) are connected between the second Pressure gauge (5) on arm one (a), arm two (b) and the 3rd ball valve (6), and arm three (c) is provided with the 5th ball valve (11)；
Described effusion meter (1) is Deltaflow meter, described Deltaflow meter is provided with lithium battery, data-interface, memorizer and signaling interface, lithium battery is connected with MCU, Delta bar sensor, LED display respectively, MCU is connected with data-interface, signaling interface, memorizer, LED display, Delta bar sensor, and described lithium battery is arranged on the outside of Deltaflow meter.
2. liquefied natural gas two-way accurate metering system as claimed in claim 1, it is characterized in that, described first ball valve (3), the second ball valve (4), the 3rd ball valve (6), the 4th ball valve (9), the 5th ball valve (11) are cryogenic ball valve, the valve seat of described cryogenic ball valve uses rustless steel built-up welding cobalt base hard alloy, cryogenic ball valve uses long neck structure, and the valve body material of cryogenic ball valve uses CF8.
3. liquefied natural gas two-way accurate metering system as claimed in claim 2, it is characterised in that described first Pressure gauge (2), the second Pressure gauge (5), the 3rd Pressure gauge (8) and the 4th Pressure gauge (10) are the intelligent digital Pressure gauge being connected with MCU.
4. liquefied natural gas two-way accurate metering system as claimed in claim 3, it is characterised in that described MCU is 32 high performance MCU.
5. liquefied natural gas two-way accurate metering system as claimed in claim 4, it is characterised in that the quantity of described lithium battery is two pieces, one piece of lithium battery electric discharge practicality, another block is standby.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620245891.1U CN205480201U (en) | 2016-03-29 | 2016-03-29 | Liquefied natural gas double - circuit precise measurement system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620245891.1U CN205480201U (en) | 2016-03-29 | 2016-03-29 | Liquefied natural gas double - circuit precise measurement system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185932A (en) * | 2019-05-20 | 2019-08-30 | 中国石油天然气集团有限公司 | A kind of processed oil pipeline pressure-reducing station hot standby regulator online |
| CN114370605A (en) * | 2021-12-20 | 2022-04-19 | 上海中远船务工程有限公司 | Floating LNG stores and regasification device correlation formula gas metering system |
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2016
- 2016-03-29 CN CN201620245891.1U patent/CN205480201U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185932A (en) * | 2019-05-20 | 2019-08-30 | 中国石油天然气集团有限公司 | A kind of processed oil pipeline pressure-reducing station hot standby regulator online |
| CN110185932B (en) * | 2019-05-20 | 2020-07-10 | 中国石油天然气集团有限公司 | Online hot standby pressure regulating device of pressure reducing station of finished oil pipeline |
| CN114370605A (en) * | 2021-12-20 | 2022-04-19 | 上海中远船务工程有限公司 | Floating LNG stores and regasification device correlation formula gas metering system |
| CN114370605B (en) * | 2021-12-20 | 2024-03-12 | 上海中远船务工程有限公司 | Floating LNG stores and regasification device correlation formula gas metering system |
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