CN204437685U - A kind of LNG ration loading system - Google Patents
A kind of LNG ration loading system Download PDFInfo
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- CN204437685U CN204437685U CN201520100563.8U CN201520100563U CN204437685U CN 204437685 U CN204437685 U CN 204437685U CN 201520100563 U CN201520100563 U CN 201520100563U CN 204437685 U CN204437685 U CN 204437685U
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Abstract
The utility model relates to liquefaction coalbed quantifying and loading device, is specially a kind of LNG ration loading system.Solve the technical problem of the defect of conventional entrucking technology existence and the potential safety hazard of existence.Comprise liquid phase delivery pipe and gas phase delivery pipe, reflow pipe and control gear, described liquid phase delivery pipe is provided with mass flowmenter, liquid phase modulating valve, safety check, liquid phase control valve, liquid discharging valve, gas-phase transport pipe is provided with gas phase control valve, and described reflow pipe is provided with safety check and recycle control valve, described liquid phase delivery pipe, gas-phase transport pipe, reflow pipe all connect blow-down pipe, described mass flowmenter, liquid phase modulating valve, liquid phase control valve, gas phase control valve, recycle control valve is all connected with remote control.Utilize and program controlly realize quantifying and loading, avoid the energy waste that overcharge brings, greatly reduce the potential safety hazard of operating process simultaneously, improve working efficiency, realize safety, accurately, efficient, environmental protection entrucking.
Description
Technical field
The utility model relates to liquefaction coalbed quantifying and loading device, is specially a kind of LNG ration loading system.
Background technique
The history that to take coal as main energy sources be based on China's energy development, single Coal Energy Source not only causes serious environmental pollution, and can restrict China's rapid development of economy.There is abundant coal bed gas resource in China, therefore develops coal bed gas resource, not only can make up coal supply breach, and can improve energy quality.Development of natural gas resource, Optimization of Energy Structure has become the important component part of Chinese energy safety strategy.
But restriction cbm development utilize reason have: the distribution of coal-seam gas gas well away from large-scale industrial district, away from residential belt, big city; The distribution of gas well large size, do not concentrate, source of the gas can not form scale; Well yield is large not, and reserves are limited, can the productive life short.And be difficult to long distance delivery.
Solve the way of coal-seam gas long distance transportation: lay feed channel at a distance, huge investment; Normal temperature high voltage gas cylinder vehicle-mounted transport---" iron and steel transport ", cost is too high; What cost was minimum is the transport of low-temperature atmosphere-pressure liquefaction tank car.
The advantage of coal gas gasification: with special LNG tank car, steamer, the rock gas of outlying, desert, marine dispersion, carry out long-distance transportation to market through post liquefaction, it can save great amount of investment than pipeline gas transmission, and convenient and reliable, risk is little, strong adaptability.Efficiency of storage is high, take up an area less, less investment.Be conducive to the balance adjustment of city load.After some popularizations, because civilian tolerance winter use is many, summer grade is few, or because undergoing technological transformation with the maintenance of the chemical plant of gas or natural gas plant itself, or even gas line network is out of order, the imbalance of regular or irregular air feed is caused in capital, and builds the effect that LNG storage tank just can play peak load shifting.The cold recoverable discharged in production process.Low-temperature liquefaction also separable go out the useful by-product of part.LNG can be used as the vehicle fuel of high-quality.Compared with burning gasoline with automobile, it has, and octane value is high, antiknock quality good, burning is complete, exhaust pollution is few, engine life is long, reduce the advantages such as cost of transportation; Production and application is safer.Be conducive to environmental protection, reduce municipal pollution.The advantage that coal gas gasification stores: Large LNG storage tank can reach 7,000 ~ 200,000 cubic metre of LNG Liquefied natural gas, small-sized LNG storage tank can deposit 5 ~ 50 cubic metres of LNG Liquefied natural gas, LNG Liquefied natural gas just again can become gaseous state through simple gasification dress Ge and use, and the rock gas of liquefied storage may be used for urban pipe network and solves a peak regulation difficult problem for Natural Gas Power Plant.It is large that coal gas gasification overcomes long-distance pipeline installation cost, and covering area is limited, and do not possess the shortcoming of storage and peak modulation capacity.
The most terminal of liquefied coal bed device of air is exactly loading system, how safely and efficiently by liquefaction coalbed entrucking, is the technical problem that we will solve.Traditional scheme, LNG is in entrucking process, or LNG whether to be had to discharge by observing relief valve, this original method judges whether tank car is filled, so both cause the waste of the energy, also efficiently, accurately cannot carry out entrucking, a large amount of combustion gas very easily occurs simultaneously in discharge process and assembles, cause security incident, cause casualties.
Summary of the invention
The utility model, in order to solve the technical problem of the safety in truck-loading of liquefaction coalbed, provides a kind of LNG ration loading system.Realize liquefaction coalbed safety, accurately, environmental protection, efficient entrucking.
The technical solution of the utility model is: a kind of LNG ration loading system, comprise liquid phase delivery pipe and gas phase delivery pipe, reflow pipe and control gear, described liquid phase delivery pipe is provided with mass flowmenter, liquid phase modulating valve, safety check, liquid phase control valve, liquid discharging valve, gas-phase transport pipe is provided with gas phase control valve, described reflow pipe is provided with safety check and recycle control valve, described liquid phase delivery pipe, gas-phase transport pipe, reflow pipe all connects blow-down pipe, described mass flowmenter, liquid phase modulating valve, liquid phase control valve, gas phase control valve, recycle control valve is all connected with remote control.
Described liquid phase delivery pipe is provided with pressure transmitter, temperature transmitter.Remote control is also connected with anti-explosion static grounding controller, and anti-explosion static grounding controller connects electrostatic chuck.
The utility model needs the process conditions possessed: after tank car arrives entrucking position, must connect static grounding system, connect entrucking oil filling riser.Operating procedure of the present utility model: after loading condition possesses, first start remote control entrucking, control system can point out N
2purge, gas-phase transport pipe is used to purge oil filling riser gas, liquid according to technological requirement, after purging completes, operator press entrucking key, control system can open gas phase control valve automatically, then opens liquid phase control valve, closing volume liquid phase circulation control valve, flow control valve control system, with the loading of freight waggon of 5%, carries out system and the cold car of tank car; Cold car terminates slowly to open flow control valve, with the full flow entrucking designed afterwards.In entrucking process, controller can add up flux signal; When reaching the large advancement amount of the entrucking of setting, the flow entrucking of 10 ~ 20% of controller adjust flux control valve, prevents entrucking to overflow tank, when the loading of freight waggon reaches little advancement amount (loading of freight waggon close to setting), controller opens circulation control valve, closes entrucking control valve, then closes gas phase control valve.
When systems axiol-ogy liquidus temperature is high or the low meeting of entrucking pressure is reported to the police in entrucking process; Can report to the police when detecting gas phase temperature and being low; Entrucking is complete to be purged oil filling riser liquid phase according to technological requirement.
The beneficial effects of the utility model: utilize and program controlly realize quantifying and loading, avoid the energy waste that overcharge brings, greatly reduce the potential safety hazard of operating process simultaneously, improve working efficiency, realize safety, accurately, efficient, environmental protection entrucking.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure: 1 pressure transmitter, 2 temperature transmitters, 3 liquid discharging valves, 4 liquid phase control valves, 5 safety check, 6 liquid phase modulating valve, 7 mass flowmenters, 8 liquid phase delivery pipes, 9 gas-phase transport pipes, 10 collecting pipes, 11 power supply and communications, 12 electrostatic chuck, 13 blow-down pipes, 14 anti-explosion static grounding controllers, 15 quantitative controllers, 16 remote controls, 17 recycle control valve 18 gas phase control valves.
Embodiment
In order to more clearly the technical solution of the utility model can be understood, below in conjunction with accompanying drawing, the utility model is further illustrated.
As shown in Figure 1, a kind of LNG ration loading system, comprise liquid phase delivery pipe 8 and gas phase delivery pipe 9, reflow pipe 10 and remote control 16, described liquid phase delivery pipe 8 is provided with mass flowmenter 7, liquid phase modulating valve 6, safety check 5, liquid phase control valve 4, liquid discharging valve 3, gas-phase transport pipe 9 is provided with gas phase control valve 18, described reflow pipe 10 is provided with safety check and recycle control valve 17, described liquid phase delivery pipe 8, gas-phase transport pipe 9, reflow pipe 10 all connects blow-down pipe 13, described mass flowmenter 7, liquid phase modulating valve 6, liquid phase control valve 4, gas phase control valve 18, recycle control valve 17 is all connected with remote control 16.
Described liquid phase delivery pipe is provided with pressure transmitter 1, temperature transmitter 2, and temperature transmitter, pressure transmitter are used for the temperature and pressure in testing pipes,
Telecontrol fills on 16 and is also connected with anti-explosion static grounding controller 14, anti-explosion static grounding controller 14 is connected with electrostatic chuck 12.Electrostatic grounding controller (1) configuration electrostatic chuck is arranged near oil filling riser, electrostatic chuck reliably must be connected with tank car, prevent static focus during entrucking.
Claims (2)
1. a LNG ration loading system, it is characterized in that: comprise liquid phase delivery pipe (8) and gas phase delivery pipe (9), reflow pipe (10) and remote control (16), described liquid phase delivery pipe (8) is provided with mass flowmenter (7), liquid phase modulating valve (6), safety check (5), liquid phase control valve (4), liquid discharging valve (3), gas-phase transport pipe (9) is provided with gas phase control valve (18), described reflow pipe (10) is provided with safety check and recycle control valve (17), described liquid phase delivery pipe (8), gas-phase transport pipe (9), reflow pipe (10) all connects blow-down pipe (13), described mass flowmenter (7), liquid phase modulating valve (6), liquid phase control valve (4), gas phase control valve (18), recycle control valve (17) is all connected with remote control (16).
2. LNG ration loading system according to claim 1, it is characterized in that: described liquid phase delivery pipe is provided with pressure transmitter (1), temperature transmitter (2), remote control (16) is also connected with anti-explosion static grounding controller (14), anti-explosion static grounding controller (14) is connected with electrostatic chuck (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100563.8U CN204437685U (en) | 2015-02-12 | 2015-02-12 | A kind of LNG ration loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100563.8U CN204437685U (en) | 2015-02-12 | 2015-02-12 | A kind of LNG ration loading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204437685U true CN204437685U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520100563.8U Expired - Fee Related CN204437685U (en) | 2015-02-12 | 2015-02-12 | A kind of LNG ration loading system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204437685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865474A (en) * | 2017-03-29 | 2017-06-20 | 中国石油天然气集团公司 | Adjusting means is measured in a kind of high-temperature sticky liquid entrucking |
| CN108280936A (en) * | 2017-12-05 | 2018-07-13 | 山东思达特测控设备有限公司 | A kind of control system and its implementation sold for heat death theory and fast sale |
-
2015
- 2015-02-12 CN CN201520100563.8U patent/CN204437685U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865474A (en) * | 2017-03-29 | 2017-06-20 | 中国石油天然气集团公司 | Adjusting means is measured in a kind of high-temperature sticky liquid entrucking |
| CN108280936A (en) * | 2017-12-05 | 2018-07-13 | 山东思达特测控设备有限公司 | A kind of control system and its implementation sold for heat death theory and fast sale |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20160212 |