CN213686217U - Novel BOG of movable retrieves device - Google Patents
Novel BOG of movable retrieves device Download PDFInfo
- Publication number
- CN213686217U CN213686217U CN202022859035.4U CN202022859035U CN213686217U CN 213686217 U CN213686217 U CN 213686217U CN 202022859035 U CN202022859035 U CN 202022859035U CN 213686217 U CN213686217 U CN 213686217U
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- Prior art keywords
- bog
- storage tank
- control valve
- electric heater
- compressor
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- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000002120 nanofilm Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000003949 liquefied natural gas Substances 0.000 description 33
- 239000007789 gas Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000007701 flash-distillation Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a novel BOG of movable retrieves device, including compressor, multi-stage filter, electric heater, control system, multi-stage filter is connected to the compressor left end, electric heater is connected to the compressor right-hand member, one-way quick-operation joint is connected in multi-stage filter upper end left side, the multi-stage filter left end is passed through outlet line and is retrieved the storage tank upper end with BOG and be connected, the check valve is connected on electric heater lower extreme right side, BOG entry control valve is connected to the check valve right-hand member, metal hose quick-operation joint is connected to BOG entry control valve right-hand member, the electric heater right-hand member is connected with LNG storage tank upper end through the entry pipeline, control system retrieves storage tank pressure gauge, BOG with BOG and retrieves storage tank control valve, pressure control valve, temperature control table and LNG. The utility model discloses a novel BOG of movable retrieves device can effectively retrieve the BOG in LNG storage tank, LNG transportation tank wagon etc. reduces BOG and discharges, avoids the environmental destruction and the energy extravagant.
Description
Technical Field
The utility model relates to a BOG gas treatment technical field especially relates to a novel BOG of movable recovery unit.
Background
Cryogenic liquefied natural gas storage tank receives the thermal invasion of external environment, and partial mechanical energy turns into heat energy when immersed pump moves in the LNG storage tank, and this all can make in the storage tank LNG gasification produce flash distillation gas, and these flash distillation gas are exactly BOG gas, and BOG can make the interior gas phase space's of storage tank pressure rise.
Sometimes, the demand of a user is insufficient but the LNG tank car transports the LNG to the user, the residual liquid in the tank car cannot be fully utilized and cannot be returned to the LNG receiving station again, and a general tank car owner can throttle and gasify the residual LNG in the tank car into BOG through a safety valve at a safe place to discharge, however, the treatment mode causes energy waste and environmental damage.
Tank cars full of LNG have a relatively large risk during road transportation, and when a tank car fails or is in danger, LNG cannot be directly throttled and gasified into BOG to be discharged to the atmosphere sometimes because of surrounding environments (such as expressways and people flow dense areas).
Therefore, need for a safe economic novel mobilizable BOG recovery unit at present, can effectively retrieve the BOG that produces when meeting emergency in LNG storage tank, the LNG tank wagon back of unloading and the LNG tank wagon transportation, the emission of less BOG avoids environmental destruction and energy waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a novel BOG recovery unit of movable who has solved among the prior art LNG storage tank, LNG tank wagon after unloading and in the LNG tank wagon transportation through the extravagant problem of environmental destruction and the problem of BOG processing that the relief valve emptys cause is provided.
In order to solve the technical problem, the utility model provides a novel BOG recovery unit of movable, including compressor, multi-stage filter, electric heater, control system, its characterized in that: the left end of the compressor is connected with a multi-stage filter, the upper end of the compressor is fixedly connected with a pressure control valve, the right end of the compressor is connected with an electric heater, the left side of the upper end of the multistage filter is fixedly connected with a BOG recovery storage tank control valve, the left end of the control valve of the BOG recovery storage tank is connected with a one-way quick connector, the left end of the multistage filter is connected with the upper end of the BOG recovery storage tank through an outlet pipeline, the left side of the upper end of the electric heater is fixedly connected with a temperature control table, the right side of the lower end of the electric heater is fixedly connected with a check valve, the right end of the check valve is connected with a BOG inlet control valve, the right end of the BOG inlet control valve is connected with a metal hose quick coupling, the electric heater right-hand member is connected with LNG storage tank upper end through the entry pipeline, control system retrieves storage tank manometer, BOG and retrieves storage tank control valve, pressure control valve, temperature control table and LNG storage tank pressure control table with BOG and is connected.
Furthermore, pressure control valves are arranged on the front span line and the rear span line of the compressor and are connected or welded through flanges, a metal support is fixedly arranged at the bottom of the compressor, and the electric support is a diesel engine.
Further, the multi-stage filter divides the three-layer filter, and the first layer is the molecular film filter, and the second floor is the active carbon filter, and the third layer is the catalyst filter, fixes in proper order inside it, the multi-stage filter entry is equipped with a plurality of water conservancy diversion shower nozzles, multi-stage filter access & exit pipeline is by flange joint.
Further, electric heater is intelligent accuse electric heater, electric heater's power is provided by vehicle mounted power, electric heater with through flange joint between the compressor.
Further, the inlet pipeline and the outlet pipeline are S-316L stainless steel pipes or low-temperature metal hoses.
Furthermore, the opening of the pressure control valve is controlled by a BOG recovery storage tank pressure gauge and an LNG storage tank pressure control gauge in a split-range mode.
Further, LNG storage tank and BOG retrieve the storage tank upper end and be connected with safe atmospheric valve, the metal collapsible tube quick-operation joint is connected and is located on the flange of pipeline between the safe atmospheric valve in LNG storage tank top and the jar body, one-way quick-operation joint is connected and is located on the flange of pipeline between BOG retrieves storage tank top safe atmospheric valve and the jar body, and flange joint is all adopted to the connected mode.
Further, the BOG inlet control valve, the BOG recovery storage tank control valve and the pressure control valve are all electric valves.
Furthermore, the control system is a PLC control system, according to the feedback LNG storage tank pressure control table and the feedback BOG recovery storage tank pressure gauge, the BOG pressure in the recovery process is controlled by determining the opening degree of the BOG recovery storage tank control valve and the opening degree of the pressure control valve of the compressor, the pressure change of the LNG storage tank and the BOG recovery storage tank is further controlled, and meanwhile, the output power of the electric heater is fed back and controlled according to the temperature control table behind the electric heater so as to maintain the temperature stability of the BOG in the recovery process.
Compared with the prior art, the beneficial effects of the utility model are that: sled dress recovery unit can in time be arranged in the board car and is dragged by BOG recovery tank wagon, reach in time, high efficiency, the purpose of nimble recovery, the BOG that produces in the daily production of recoverable LNG storage tank, retrieve the LNG loss that LNG tank wagon caused after unloading, solve the tank wagon when in danger in the transportation or under the fault condition because the huge potential safety hazard problem that the unable safe discharge of environment leads to, the BOG that needs to discharge at urgent need first passes through BOG entry control valve, a compressor, the control of BOG recovery storage tank control valve and pressure control valve, guarantee recovery in-process BOG pressure stability, thereby guarantee to retrieve stability, then control BOG temperature through electric heater, guarantee that recovery in-process BOG does not take liquid, filter the impurity in the BOG through multi-stage filter at last, the assurance is obtained pure BOG and is got into BOG and is retrieved the storage tank.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numbers in the figures:
1-LNG storage tank pressure control meter 2-metal hose quick coupling 3-BOG inlet control valve
4-check valve 5-electric heater 6-temperature control meter
7-pressure control valve 8-compressor 9-multi-stage filter
10-BOG recovery storage tank control valve 11-one-way quick connector 12-BOG recovery storage tank pressure gauge
13-control system 14-inlet line 15-outlet line
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and the embodiments, so that the features and advantages of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be more clearly and clearly defined.
Referring to fig. 1, a novel movable BOG recovery device comprises a compressor 8, a multistage filter 9, an electric heater 5 and a control system 13, wherein the left end of the compressor 8 is connected with the multistage filter 9, the upper end of the compressor 8 is fixedly connected with a pressure control valve 7, the right end of the compressor 8 is connected with the electric heater 5, the left side of the upper end of the multistage filter 9 is fixedly connected with a BOG recovery storage tank control valve 10, the left end of the BOG recovery storage tank control valve 10 is connected with a one-way quick coupling 11, the left end of the multistage filter 9 is connected with the upper end of a BOG recovery storage tank through an outlet pipeline 15, the left side of the upper end of the electric heater 5 is fixedly connected with a temperature control table 6, the right side of the lower end of the electric heater 5 is fixedly connected with a check valve 4, the right end of the check valve 4 is connected with a BOG, the right end of the electric heater 5 is connected with the upper end of the LNG storage tank through an inlet pipeline 14, and the control system 13 is connected with a BOG recovery storage tank pressure gauge 12, a BOG recovery storage tank control valve 10, a pressure control valve 7, a temperature control table 6 and an LNG storage tank pressure control table 1.
Specifically, the pressure control valves 7 are arranged on the front span line and the rear span line of the compressor 8 and are connected or welded through flanges, a metal support is fixedly arranged at the bottom of the compressor 8, and the electric support is a diesel engine.
Specifically, multistage filter 9 divides the three-layer filter, and the first layer is the molecular film filter, and the second floor is the active carbon filter, and the third layer is the catalyst filter, fixes in proper order inside it, 9 entries of multistage filter are equipped with a plurality of water conservancy diversion shower nozzles, 9 exit pipeline of multistage filter are by flange joint.
Specifically, electric heater 5 is intelligent control electric heater, electric heater 5's power is provided by vehicle mounted power, electric heater 5 with through flange joint between the compressor 8.
Specifically, the inlet line 14 and the outlet line 15 are S-316L stainless steel tubes or low-temperature metal hoses.
Specifically, the opening degree of the pressure control valve 7 is controlled by a BOG recovery storage tank pressure gauge 12 and an LNG storage tank pressure control table 1 in a split-range manner.
Specifically, LNG storage tank and BOG retrieve the storage tank upper end and be connected with safe atmospheric valve, metal collapsible tube quick-operation joint 2 is connected and is located on the flange of pipeline between the safe atmospheric valve in LNG storage tank top and the jar body, one-way quick-operation joint 11 is connected and is located on the flange of pipeline between BOG retrieves storage tank top safe atmospheric valve and the jar body, and flange joint is all adopted to the connected mode.
Specifically, the BOG inlet control valve 3, the BOG recovery tank control valve 10, and the pressure control valve 7 are all electrically operated valves.
Specifically, the control system 13 is a PLC control system. According to the feedback LNG storage tank pressure control table 1 and the feedback BOG recovery storage tank pressure gauge 12, the BOG pressure in the recovery process is controlled by determining the opening of a BOG recovery storage tank control valve 10 and the opening of a pressure control valve 7 of a compressor 8, so that the pressure change of the LNG storage tank and the BOG recovery storage tank is controlled, and meanwhile, the output power of an electric heater 5 is fed back and controlled according to a temperature control table 6 behind the electric heater 5 so as to maintain the temperature stability of the BOG in the recovery process.
The utility model discloses a theory of operation: BOG that the urgent need of discharging is at first through BOG entry control valve 3, compressor 8, BOG recovery storage tank control valve 10 and pressure control valve 7's control, BOG pressure stability among the assurance recovery process to guarantee to retrieve stability, then control the BOG temperature through electric heater 5, guarantee that BOG does not take liquid among the recovery process, filter the impurity in the BOG through multistage filter 9 at last, guarantee to obtain pure BOG and get into BOG recovery storage tank. The skid-mounted recovery device can be timely placed on a plate vehicle and dragged by a BOG recovery tank car, so that the purposes of timely, efficient and flexible recovery are achieved, and the skid-mounted recovery device is suitable for multiple application conditions.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, and for those skilled in the art, equivalent modifications and variations made according to the disclosure of the present invention still fall into the protection scope of the present invention.
Claims (9)
1. The utility model provides a novel BOG recovery unit of movable, includes compressor (8), multistage filter (9), electric heater (5), control system (13), its characterized in that: the left end of the compressor (8) is connected with a multistage filter (9), the upper end of the compressor (8) is connected with a pressure control valve (7), the right end of the compressor (8) is connected with an electric heater (5), the left side of the upper end of the multistage filter (9) is connected with a BOG recovery storage tank control valve (10), the left end of the BOG recovery storage tank control valve (10) is connected with a one-way quick connector (11), the left end of the multistage filter (9) is connected with the upper end of the BOG recovery storage tank through an outlet pipeline (15), the left side of the upper end of the electric heater (5) is connected with a temperature control meter (6), the right side of the lower end of the electric heater (5) is connected with a check valve (4), the right end of the check valve (4) is connected with a BOG inlet control valve (3), the right end of the BOG inlet control valve (3) is connected with a metal, and the control system (13) is connected with a BOG recovery storage tank pressure gauge (12), a BOG recovery storage tank control valve (10), a pressure control valve (7), a temperature control table (6) and an LNG storage tank pressure control table (1).
2. The novel BOG recovery device of claim 1, wherein: the pressure control valve (7) is arranged on the front span line and the rear span line of the compressor (8) and is connected or welded through a flange, a metal support is fixedly arranged at the bottom of the compressor (8), and the electric support is a diesel engine.
3. The novel BOG recovery device of claim 1, wherein: multistage filter (9) divide the three-layer filter, and the first layer is the molecular film filter, and the second floor is the active carbon filter, and the third layer is the catalyst filter, fixes in proper order inside it, multistage filter (9) entry is equipped with a plurality of water conservancy diversion shower nozzles, multistage filter (9) access & exit pipeline is by flange joint.
4. The novel BOG recovery device of claim 1, wherein: electric heater (5) are intelligent control electric heater, electric heater (5)'s power is provided by vehicle mounted power, electric heater (5) with through flange joint between compressor (8).
5. The novel BOG recovery device of claim 1, wherein: the inlet pipeline (14) and the outlet pipeline (15) are S-316L stainless steel pipes or low-temperature metal hoses.
6. The novel BOG recovery device of claim 1, wherein: the opening degree of the pressure control valve (7) is controlled by a BOG recovery storage tank pressure gauge (12) and an LNG storage tank pressure control meter (1) in a split-range mode.
7. The novel BOG recovery device of claim 1, wherein: LNG storage tank and BOG retrieve storage tank upper end and be connected with safe atmospheric valve, metal collapsible tube quick-operation joint (2) are connected and are located on the flange of pipeline between the safe atmospheric valve in LNG storage tank top and the jar body, one-way quick-operation joint (11) are connected and are located on the flange of pipeline between BOG retrieve storage tank top safe atmospheric valve and the jar body, and flange joint is all adopted to the connected mode.
8. The novel BOG recovery device of claim 1, wherein: and the BOG inlet control valve (3), the BOG recovery storage tank control valve (10) and the pressure control valve (7) are all electric valves.
9. The novel BOG recovery device of claim 1, wherein: the control system (13) is a PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022859035.4U CN213686217U (en) | 2020-12-02 | 2020-12-02 | Novel BOG of movable retrieves device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022859035.4U CN213686217U (en) | 2020-12-02 | 2020-12-02 | Novel BOG of movable retrieves device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213686217U true CN213686217U (en) | 2021-07-13 |
Family
ID=76737685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022859035.4U Expired - Fee Related CN213686217U (en) | 2020-12-02 | 2020-12-02 | Novel BOG of movable retrieves device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213686217U (en) |
-
2020
- 2020-12-02 CN CN202022859035.4U patent/CN213686217U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20210713 |