CN213177669U - Gasification unit is retrieved to tank wagon raffinate - Google Patents
Gasification unit is retrieved to tank wagon raffinate Download PDFInfo
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- CN213177669U CN213177669U CN202020959809.8U CN202020959809U CN213177669U CN 213177669 U CN213177669 U CN 213177669U CN 202020959809 U CN202020959809 U CN 202020959809U CN 213177669 U CN213177669 U CN 213177669U
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- gasification unit
- tank car
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Abstract
The utility model discloses a tank car residual liquid recovery gasification unit, which comprises a gasification conveying pipeline for unloading the low-temperature liquefaction carrier of the tank car, a gasification unit, a bypass and a BOG gasifier; wherein the gasification unit comprises a plurality of gasifiers connected in series; a gasification inlet valve is arranged at the inlet end of the gasification conveying pipeline, and a gasification check valve is arranged between the gasification unit and the BOG gasifier bypass; and a BOG gasification valve is arranged on the bypass. The utility model discloses well gasification unit comprises the vaporizer of a plurality of series connections, has effectively improved gasification efficiency, avoids the risk that follow-up equipment breaks, equipment damages because of the pipeline that low temperature overload arouses. The BOG gasifier arranged through the bypass effectively improves the recovery efficiency of residual liquid, ensures the balance of the pressure of the tank car end and the output end, and is flexible in bypass arrangement and control and high in equipment use safety. Furthermore, through setting up the gasification check valve, avoid the pressure of BOG vaporizer bypass to get into the gasification unit, improve equipment's security.
Description
Technical Field
The utility model relates to a natural gas recovery technical field, more specifically relates to a gasification unit is retrieved to remaining liquid of tank wagon.
Background
Generally, in the unloading process of the LNG tank wagon in the station, the LNG tank wagon is unloaded by using a vaporization device, the kinetic energy is a liquid level difference and a pressure difference, the pressure of the LNG storage tank and the pressure of the LNG tank wagon gradually tend to be balanced before the unloading is finished, and a part of liquid left in the LNG tank wagon cannot be unloaded into the LNG storage tank. At this time, the remaining liquid in the tank car needs to be recovered by an unloading pressurization device and a BOG residual gas recovery device. However, the existing tank car residual liquid recovery device has low gasification efficiency, incomplete gasification and low flow rate, on one hand, the efficiency of unloading is influenced, so that the liquefied gas supply capacity is low, on the other hand, because the tank car is filled with energy-carrying liquid at ultralow temperature, the gasification efficiency directly influences the safety of subsequent equipment, for example, low-temperature overload occurs, and even the phenomenon of pipeline breakage occurs.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to above-mentioned defect with not enough, provide a gasification unit is retrieved to tank wagon residual liquid that gasification efficiency is high, avoid low temperature to transship, effectively improve supply pipe and equipment security.
In order to achieve the above object, the utility model discloses a specific technical scheme be:
the utility model discloses a tank car residual liquid recovery gasification unit, which comprises a gasification conveying pipeline for unloading the low-temperature liquefaction carrier of the tank car, a gasification unit arranged on the gasification conveying pipeline, and a BOG gasifier connected with the gasification conveying pipeline through a bypass; wherein the gasification unit comprises a plurality of gasifiers connected in series; a gasification inlet valve is arranged at the inlet end of the gasification conveying pipeline, and a gasification check valve is arranged between the gasification unit and the BOG gasifier bypass; and a BOG gasification valve is arranged on the bypass.
In order to further reasonably improve the gasification efficiency, the gasification unit comprises a gasifier, and the treatment capacity of the gasifier is 800m in sequence3/h、800m3H and 500m3/h。
In order to improve the safety and the early warning performance, a low-temperature alarm is arranged on the gasification unit.
In order to monitor the working condition of the equipment unit, the output end of the gasification conveying pipeline is provided with a pressure gauge and a flow meter.
For better non-return, the gasification check valve is a long shaft stop valve.
In order to reasonably select a conveying mode and meet the conveying requirements under different conditions, the tank wagon residual liquid recovery gasification unit further comprises a liquid storage conveying pipeline connected with the gasification conveying pipeline and used for storing a tank wagon low-temperature liquefaction carrier, and a liquid storage valve and a storage tank are sequentially arranged on the liquid storage conveying pipeline. The tank wagon residual liquid recovery gasification unit also comprises a direct transportation pipeline which is connected with the gasification transportation pipeline in parallel and used for unloading the tank wagon liquefied gas, and a direct transportation valve is arranged on the direct transportation pipeline.
In order to better control the pipeline, the gasification air inlet valve, the BOG gasification valve, the liquid storage valve and the direct delivery valve are all electromagnetic valves.
In order to facilitate control, the tank car residual liquid recovery gasification unit further comprises a control cabinet, and the gasification unit, the BOG gasifier, the gasification air inlet valve, the BOG gasification valve, the liquid storage valve and the direct delivery valve are all electrically connected with the control cabinet.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses well gasification unit comprises the vaporizer of a plurality of series connections, has effectively improved gasification efficiency, avoids the risk that follow-up equipment breaks, equipment damages because of the pipeline that low temperature overload arouses. The BOG gasifier arranged through the bypass effectively improves the recovery efficiency of residual liquid, ensures the balance of the pressure of the tank car end and the output end, and is flexible in bypass arrangement and control and high in equipment use safety. Furthermore, through setting up the gasification check valve, avoid the pressure of BOG vaporizer bypass to get into the gasification unit, improve equipment's security.
The present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a tank car residual liquid recovery gasification unit in a preferred embodiment of the present invention.
Fig. 2 is a schematic side view of a tank car residual liquid recovery gasification unit in the preferred embodiment of the present invention.
Description of reference numerals:
1 gasification conveying pipeline, 11 air inlet ends, 12 gasification air inlet valves, 13 gasification check valves, 2 gasification units, 21 gasifiers, 3 bypasses, 31BOG gasification valves, 4BOG gasifiers, 5 liquid storage conveying pipelines, 51 liquid storage valves, 52 storage tanks, 6 direct conveying pipelines, 61 direct conveying valves, 7 control cabinets, 8 pressure gauges, 9 flow meters and 101 low-temperature alarms.
Detailed Description
The present invention is further explained and illustrated by the following embodiments, it should be understood that the following embodiments are for the purpose of making the technical solution of the present invention clearer and easier to understand, and do not limit the scope of the claims.
As shown in fig. 1, the gasification unit for recycling tank car residual liquid according to the present invention comprises a gasification transportation pipeline 1 for unloading the low temperature liquefied carrier of the tank car, a gasification unit 2 disposed on the gasification transportation pipeline 1, and a BOG gasifier 4 connected to the gasification transportation pipeline 1 through a bypass 3; wherein, the gasification unit 2 comprises a plurality of gasifiers 21 connected in series; the gas inlet end 11 of the gasification conveying pipeline 1 is provided with a gasification gas inlet valve 12, and a gasification check valve 13 is arranged between the gasification unit 2 and the BOG gasifier 4 bypass 3; the bypass 3 is provided with a BOG gasification valve 31.
As shown in FIGS. 1 to 2, in a preferred embodiment, in order to further increase the gasification efficiency, the gasification unit 2 comprises 3 gasifiers 21, and the throughput thereof is 800m in this order3/h、800m3H and 500m3H is used as the reference value. In order to improve the safety and the early warning performance, a low-temperature alarm is arranged on the gasification unit 2. In order to monitor the working condition of the equipment unit, the output end of the gasification conveying pipeline 1 is provided with a pressure gauge 8 and a flow meter 9. For better non-return, the gasification check valve 13 is a long axis stop valve. In order to reasonably select a conveying mode and meet the conveying requirements under different conditions, the tank car residual liquid recovery gasification unit further comprises a liquid storage conveying pipeline 5 which is connected with the gasification conveying pipeline 1 and used for storing a low-temperature liquefaction carrier of the tank car, and a liquid storage valve 51 and a storage tank 52 are sequentially arranged on the liquid storage conveying pipeline 5. Tank car residual liquid recovery gasificationThe unit also comprises a direct transportation pipeline 6 which is connected with the gasification transportation pipeline 1 in parallel and used for unloading the liquefied gas of the tank car, and a direct transportation valve 61 is arranged on the direct transportation pipeline 6. For better control of the pipeline, the gasification inlet valve 12, the BOG gasification valve 31, the liquid storage valve 51 and the direct delivery valve 61 are all electromagnetic valves. For convenient control, the tank car residual liquid recovery gasification unit further comprises a control cabinet 7, and the gasification unit 2, the BOG gasifier 4, the gasification inlet valve 12, the BOG gasification valve 31, the liquid storage valve 51 and the direct transportation valve 61 are all electrically connected with the control cabinet 7.
The working principle of the utility model is as follows:
firstly, the infusion end of the tank car is connected with the air inlet end 11 of the gasification conveying pipeline 1, and the gasification air inlet valve 12 and the gasification check valve 13 are opened; the gasifiers 21 in the gasification units 2 are turned on, and the gasification efficiency of the gasifiers is set to 800m in turn3/h、800m3/h、500m3H; the liquid temperature conveyed to the gasification unit 2 from the tank wagon can be monitored through the low-temperature alarm 101, the temperature is prevented from being too low, and low-temperature overload is avoided. And opening a BOG gasification valve and starting the BOG gasifier. Meanwhile, the liquid conveying end of the tank car can be connected with the liquid storage conveying pipeline 5 and the direct conveying pipeline 6, and the liquid storage valve 51 and the direct conveying valve 61 need to be opened at the moment. The opening and the starting of each valve and equipment can be controlled through the control cabinet 7; the condition of the pipeline can be monitored by means of a pressure gauge 8 and a flow meter 9.
The present invention has been described in terms of embodiments, but not limitations, and other variations of the disclosed embodiments, as would be readily apparent to one skilled in the art, are intended to be included within the scope of the present invention as defined in the following claims, in view of the description of the present invention.
Claims (9)
1. The utility model provides a gasification unit is retrieved to tank wagon raffinate which characterized in that: the system comprises a gasification conveying pipeline (1) for unloading the low-temperature liquefied carrier of the tank car, a gasification unit (2) arranged on the gasification conveying pipeline (1), and a BOG gasifier (4) connected with the gasification conveying pipeline (1) through a bypass (3); wherein the gasification unit (2) comprises a plurality of gasifiers (21) connected in series; a gasification inlet valve (12) is arranged at an inlet end (11) of the gasification conveying pipeline (1), and a gasification check valve (13) is arranged between the gasification unit (2) and the BOG gasifier (4) bypass (3); and a BOG gasification valve (31) is arranged on the bypass (3).
2. The tank car raffinate recovery gasification unit of claim 1, wherein: the gasification unit (2) comprises 3 gasifiers (21) with the treatment capacity of 800m in sequence3/h、800m3H and 500m3/h。
3. The tank car raffinate recovery gasification unit of claim 1, wherein: and a low-temperature alarm (101) is arranged on the gasification unit (2).
4. The tank car raffinate recovery gasification unit of claim 1, wherein: the output end of the gasification conveying pipeline (1) is provided with a pressure gauge (8) and a flowmeter (9).
5. The tank car raffinate recovery gasification unit of claim 1, wherein: the gasification check valve (13) is a long shaft stop valve.
6. The tank car raffinate recovery gasification unit of claim 1, wherein: the tank wagon residual liquid recycling gasification unit further comprises a liquid storage conveying pipeline (5) connected with the gasification conveying pipeline (1) and used for storing a tank wagon low-temperature liquefaction carrier, and a liquid storage valve (51) and a storage tank (52) are sequentially arranged on the liquid storage conveying pipeline (5).
7. The tank car raffinate recovery gasification unit of claim 1, wherein: the tank car residual liquid recovery gasification unit further comprises a direct transportation pipeline (6) which is connected with the gasification transportation pipeline (1) in parallel and used for unloading liquefied gas of the tank car, and a direct transportation valve (61) is arranged on the direct transportation pipeline (6).
8. The tank car raffinate recovery gasification unit of claim 1, wherein: the gasification air inlet valve (12), the BOG gasification valve (31), the liquid storage valve (51) and the direct delivery valve (61) are all electromagnetic valves.
9. The tank car raffinate recovery gasification unit of claim 1, wherein: the tank car residual liquid recycling gasification unit further comprises a control cabinet (7), and the gasification unit (2), the BOG gasifier (4), the gasification air inlet valve (12), the BOG gasification valve (31), the liquid storage valve (51) and the direct transportation valve (61) are all electrically connected with the control cabinet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020959809.8U CN213177669U (en) | 2020-05-29 | 2020-05-29 | Gasification unit is retrieved to tank wagon raffinate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020959809.8U CN213177669U (en) | 2020-05-29 | 2020-05-29 | Gasification unit is retrieved to tank wagon raffinate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213177669U true CN213177669U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020959809.8U Active CN213177669U (en) | 2020-05-29 | 2020-05-29 | Gasification unit is retrieved to tank wagon raffinate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213177669U (en) |
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2020
- 2020-05-29 CN CN202020959809.8U patent/CN213177669U/en active Active
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