CN110702444A - LNG heat exchanger real ship simulation test system - Google Patents
LNG heat exchanger real ship simulation test system Download PDFInfo
- Publication number
- CN110702444A CN110702444A CN201911010444.2A CN201911010444A CN110702444A CN 110702444 A CN110702444 A CN 110702444A CN 201911010444 A CN201911010444 A CN 201911010444A CN 110702444 A CN110702444 A CN 110702444A
- Authority
- CN
- China
- Prior art keywords
- lng
- propane
- control valve
- gasifier
- vaporizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
Abstract
The invention belongs to the technical field of testing of compact LNG heat exchangers, and particularly relates to a real-ship simulation testing system for an LNG heat exchanger. The gasification unit comprises an LNG storage tank, an LNG booster pump, an LNG vaporizer and a heater which are connected through pipelines, an exhaust pipe is arranged on the LNG storage tank, a first control valve is arranged on the exhaust pipe, a first flow meter is arranged between the LNG booster pump and the LNG vaporizer, and a second control valve is arranged between the LNG vaporizer and the heater. The heat exchange unit comprises a propane buffer tank, a propane pump and a propane gasifier which are connected through pipelines, the propane buffer tank and the propane gasifier are respectively connected with the LNG gasifier, a third control valve and a second flowmeter are arranged between the propane pump and the propane gasifier, a water supply pipeline and a water return pipeline are further arranged on the propane gasifier, and a fourth control valve and a third flowmeter are arranged on the water supply pipeline.
Description
Technical Field
The invention belongs to the technical field of testing of compact LNG heat exchangers, and particularly relates to a real-ship simulation testing system for an LNG heat exchanger.
Background
In recent years, with the increasing of the use proportion of clean energy LNG (liquefied natural gas) year by year, the LNG market is seized by all countries in the world, and LNG receiving stations and floating LNG storage regasification devices are vigorously built to meet the supply demand of the LNG market in China. One large core technology in LNG receiving stations and floating LNG storage regasification plants is LNG vaporizers. The LNG vaporizers in the LNG receiving station are mainly classified into an open rack vaporizer, a submerged combustion vaporizer, and an intermediate medium vaporizer. The LNG vaporizers in the floating LNG storage regasification facilities are mainly classified into shell and tube vaporizers and printed circuit board heat exchangers. The printed circuit board heat exchanger has the advantages of light weight, small volume, no leakage and the like, and is widely applied to a floating LNG storage and re-gasification device in recent years. However, the core technology of the printed circuit board heat exchanger is always controlled by foreign companies, and the price is expensive in China.
In order to break the monopoly situation, a plurality of domestic companies and research units carry out cooperative research, a compact LNG heat exchanger prototype is manufactured in a trial mode, the compact LNG heat exchanger prototype is manufactured by adopting a 3D printing technology, the compact LNG heat exchanger prototype has the advantages of light weight, small volume, no leakage and the like, can gradually replace a printed circuit board heat exchanger, and is applied to a floating type LNG storage and regasification device and an LNG receiving station. The invention provides a real ship simulation test system for carrying out industrial test on a trial-produced compact LNG heat exchanger prototype.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a real-ship simulation test system for an LNG heat exchanger.
The technical scheme of the invention is as follows:
the invention provides a real-ship simulation test system for an LNG heat exchanger, which comprises a gasification unit and a heat exchange unit which are matched for use.
The gasification unit comprises an LNG storage tank, an LNG booster pump, an LNG gasifier and a heater which are sequentially connected through pipelines, wherein an exhaust pipe is arranged on the LNG storage tank, a first low-temperature hose is arranged on the exhaust pipe, a first control valve is arranged on the exhaust pipe, a first flow meter is arranged on the pipeline between the LNG booster pump and the LNG gasifier, a second control valve and a second low-temperature hose are arranged on the pipeline between the LNG gasifier and the heater, and the LNG storage tank, the LNG booster pump and the LNG gasifier are arranged on a swing platform and used for simulating swing of a real ship;
the heat exchange unit comprises a propane buffer tank, a propane pump and a propane gasifier which are sequentially connected through pipelines, wherein the propane buffer tank and the propane gasifier are respectively connected with the LNG gasifier, a third low-temperature hose is arranged between the LNG gasifier and the propane buffer tank, a third control valve and a second flowmeter are arranged on the pipeline between the propane pump and the propane gasifier, a water supply pipeline and a water return pipeline are further arranged on the propane gasifier, a fourth control valve and a third flowmeter are arranged on the water supply pipeline, and a fourth low-temperature hose is arranged between the propane gasifier and the LNG gasifier.
In an embodiment of the present invention, the LNG tank and the propane buffer tank are each provided with a pressure sensor and a level sensor, wherein the pressure sensor on the LNG tank is used to control the first control valve, the pressure sensor on the propane buffer tank is used to control the fourth control valve and the third flow meter, and the level sensor on the propane buffer tank is used to control the third control valve.
In an embodiment of the present invention, the pressure sensor on the propane buffer tank is connected to the first flow meter, and a change in the flow rate of LNG in the first flow meter can be used to control the pressure in the propane buffer tank.
In an embodiment of the present invention, a pressure sensor and a temperature sensor are disposed on each of pipelines between the LNG vaporizer and the LNG booster pump, the propane buffer tank, and the propane vaporizer, and a pressure sensor and a temperature sensor are disposed on each of pipelines between the LNG and the heater.
In an embodiment of the present invention, the pressure sensor on the pipeline between the LNG vaporizer and the heater may be further used to control the second control valve.
In an embodiment of the present invention, the inverter motor is used for driving the LNG booster pump.
Has the advantages that: the LNG heat exchanger real ship simulation test system provided by the invention can complete real ship simulation test of the heat exchanger, correct the theoretical calculation model according to the test data, facilitate formation of accurate heat exchanger basic design data and lay a solid foundation for the practical application of the heat exchanger.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a structural diagram of a real-ship simulation test system for an LNG heat exchanger provided by the invention.
Shown in the figure: 1-LNG heat exchanger real ship simulation test system; 2-an LNG storage tank; 3-LNG booster pump; 4-an LNG vaporizer; 5-a heater; 6-a first control valve; 7-a first flow meter; 8-a second control valve; a 9-propane surge tank; a 10-propane pump; an 11-propane gasifier; 12-a third control valve; 13-a second flow meter; 14-a fourth control valve; 15-a third flow meter; 16-a variable frequency motor; 17-a first cryogenic hose; 18-a second cryogenic hose; 19-a third cryogenic hose; 20-a fourth cryogenic hose; 21-rocking platform.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example (b):
as shown in fig. 1, the present embodiment provides an LNG heat exchanger real-vessel simulation test system 1, which includes a gasification unit and a heat exchange unit used in cooperation.
The gasification unit comprises an LNG storage tank 2, an LNG booster pump 3, an LNG vaporizer 4 and a heater 5 which are sequentially connected through pipelines, wherein an exhaust pipe is arranged on the LNG storage tank 2, a first low-temperature hose 17 is arranged on the exhaust pipe, a first control valve 6 is arranged on the exhaust pipe, a first flow meter 7 is arranged on the pipeline between the LNG booster pump 3 and the LNG vaporizer 4, a second control valve 8 and a second low-temperature hose 18 are arranged on the pipeline between the LNG vaporizer 4 and the heater 5, and the LNG storage tank 2, the LNG booster pump 3 and the LNG vaporizer are arranged on a swing table 21 and used for simulating swing of a real ship.
The heat exchange unit includes a propane buffer tank 9, a propane pump 10 and a propane vaporizer 11 which are connected in sequence through pipelines, wherein the propane buffer tank 9 and the propane vaporizer 11 are respectively connected with the LNG vaporizer 4, a third low temperature hose 19 is provided between the LNG vaporizer 4 and the propane buffer tank 9, a third control valve 12 and a second flowmeter 13 are provided on the pipeline between the propane pump 10 and the propane vaporizer 11, a water supply pipeline and a water return pipeline are provided on the propane vaporizer 11, a fourth control valve 14 and a third flowmeter 15 are provided on the water supply pipeline, and a fourth low temperature hose 20 is provided between the propane vaporizer 11 and the LNG vaporizer 4.
Specifically, the LNG vaporizer 4 is provided with an LNG inlet, an LNG outlet, a propane inlet, and a propane outlet. Wherein LNG import and LNG booster pump 3 link to each other for in sending into LNG vaporizer 4 with LNG, the LNG export is arranged in passing through heater 5 with the LNG after the gasification and carries to outside gas supply pipe network, propane import and propane vaporizer 11 link to each other for send into LNG vaporizer 4 with the LNG in with the high temperature propane after the gasification and carry out the heat transfer, thereby make LNG become gaseous natural gas, and propane after the heat transfer then flows into to propane buffer tank 9 through the propane export. The first low-temperature hose 17, the second low-temperature hose 18, the third low-temperature hose 19, and the fourth low-temperature hose 20 are all for satisfying the requirement of the swing platform 21.
In the present embodiment, the LNG tank 2 and the propane buffer tank 9 are each provided with a pressure sensor and a level sensor, wherein the pressure sensor on the LNG tank 2 controls the first control valve 6, the pressure sensor on the propane buffer tank 9 controls the fourth control valve 14 and the third flow meter 15, and the level sensor on the propane buffer tank 9 controls the third control valve 12.
Specifically, the pressure sensor on the LNG storage tank 2 is a pressure sensor (PC), and may be used to control the opening degree of the first control valve 6. And the level sensor on the LNG tank 2 is a level measurement sensor (LT) for measuring the level of the liquid in the LNG tank 2 and transmitting the measured value to an external display screen. The pressure sensor (PC) of the propane buffer tank 9 is used to control the opening of the fourth control valve 14, thereby controlling the amount of hot water flowing into the propane vaporizer 11, and the fourth control valve 14 in turn controls the third flow meter 15, and the third flow meter 15 is used to measure the amount of hot water flowing into the propane vaporizer 11. When the pressure in the propane buffer tank 9 changes, the fourth control valve 14 regulates the flow rate of the hot water in the third flow meter 15 according to the change of the pressure. The liquid level sensor of the propane buffer tank 9 is a liquid level control sensor (LC), and when the liquid level in the propane buffer tank 9 reaches a certain height, the third control valve 12 can be opened, and the opening degree of the third control valve 12 changes along with the change of the liquid level height in the propane buffer tank 9.
In this embodiment, the pressure sensor of the propane buffer tank 9 is connected to the first flow meter 7, the first flow meter 7 is used for measuring the flow rate of LNG flowing into the LNG vaporizer 4, and the change in the flow rate of LNG in the first flow meter 7 can be used for controlling the internal pressure of the propane buffer tank 9, and vice versa.
Similarly, when the LNG flow rate in the first flow meter 7 changes, the pressure in the propane buffer tank 9 changes, and the fourth control valve 14 controls the third flow meter 15 to measure the amount of hot water flowing into the propane vaporizer 11.
In this embodiment, a pressure sensor (PT) and a temperature sensor (TT) are provided in each of the lines between the LNG vaporizer 4 and the LNG booster pump 3, the propane buffer tank 9, and the propane vaporizer 11, and a pressure sensor (PC) and a temperature sensor (TT) are provided in each of the lines between the LNG and the heater 5.
In this embodiment, the pressure sensor on the line between the LNG vaporizer 4 and the heater 5 may also be used to control the second control valve 8.
Specifically, the second control valve 8 is opened when the pressure in the line between the LNG vaporizer 4 and the heater 5 reaches a predetermined value.
In this embodiment, the LNG booster pump 3 is provided with a variable frequency motor 16, and the variable frequency motor 16 is used for driving the LNG booster pump 3.
The test method of the LNG heat exchanger real-ship simulation test system 1 provided by the embodiment is as follows:
1) firstly, adding a certain amount of LNG into an LNG storage tank 2, and adding a certain amount of liquid propane into a propane buffer tank 9 to serve as a heating medium;
2) starting the swing platform 21, starting the LNG booster pump 3, boosting the LNG to 13MPa, and then sending the LNG to the LNG vaporizer 4, wherein propane in the propane buffer tank 9 passes through the propane vaporizer 11 under the action of the propane pump 10 and then becomes high-temperature gaseous propane, the LNG is vaporized into natural gas after the heat exchange between the gaseous propane and the LNG in the LNG vaporizer 4, and the high-temperature gaseous propane becomes a gas-liquid mixed state and enters the propane buffer tank 9 to start the next heat cycle;
3) the gas natural gas in the LNG gasifier 4 is reheated by the heater 5 and then sent into the external gas supply pipe network, and whether various indexes of the natural gas in the external gas supply pipe network reach the industrial requirement indexes is judged by detecting the indexes of the natural gas in the external gas supply pipe network;
4) in the test process, the flow of the LNG booster pump 3 is adjusted by adjusting the rotating speed of the variable frequency motor 16, so that the flow of the first flow meter 7 is changed, the pressure in the propane buffer tank 9 is changed, the flow measured by the third flow meter 15 is adjusted by the fourth control valve 14, the LNG amount flowing into the LNG vaporizer 4 is matched with the high-temperature gaseous propane amount exchanging heat with the LNG, and the LNG in the LNG vaporizer 4 is completely vaporized into gaseous natural gas.
The LNG heat exchanger real ship simulation test system that this embodiment provided's beneficial effect does: the LNG heat exchanger real ship simulation test system provided by the invention can complete real ship simulation test of the heat exchanger, correct the theoretical calculation model according to the test data, facilitate formation of accurate heat exchanger basic design data and lay a solid foundation for the practical application of the heat exchanger.
Although the present invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (6)
1. A real ship simulation test system for an LNG heat exchanger is characterized by comprising a gasification unit and a heat exchange unit which are matched with each other;
the LNG pressure pump is arranged on the LNG storage tank, the LNG vaporizer is arranged on the LNG storage tank, the first low-temperature hose is arranged on the exhaust pipe, the first control valve is arranged on the exhaust pipe, the first flow meter is arranged on the pipeline between the LNG pressure pump and the LNG vaporizer, the second control valve and the second low-temperature hose are arranged on the pipeline between the LNG vaporizer and the heater, and the LNG storage tank, the LNG pressure pump and the LNG vaporizer are arranged on the swing platform and used for simulating swing of a real ship;
the heat exchange unit comprises a propane buffer tank, a propane pump and a propane gasifier which are sequentially connected through pipelines, wherein the propane buffer tank and the propane gasifier are respectively connected with the LNG gasifier, the LNG gasifier is provided with a third low-temperature hose between the propane buffer tanks, the propane pump is provided with a third control valve and a second flowmeter on the pipelines between the propane gasifiers, the propane gasifier is further provided with a water supply pipeline and a water return pipeline, a fourth control valve and a third flowmeter are arranged on the water supply pipeline, and a fourth low-temperature hose is arranged between the propane gasifier and the LNG gasifier.
2. The LNG heat exchanger real-ship simulation test system according to claim 1, wherein a pressure sensor and a liquid level sensor are arranged on each of the LNG storage tank and the propane buffer tank, wherein the pressure sensor on the LNG storage tank is used for controlling the first control valve, the pressure sensor on the propane buffer tank is used for controlling the fourth control valve and the third flow meter, and the liquid level sensor on the propane buffer tank is used for controlling the third control valve.
3. The LNG heat exchanger real-vessel simulation test system according to claim 2, wherein the pressure sensor on the propane buffer tank is connected to the first flow meter, and changes in LNG flow in the first flow meter can be used to control the pressure in the propane buffer tank.
4. The LNG heat exchanger real-ship simulation test system according to claim 1, wherein pressure sensors and temperature sensors are provided on pipelines between the LNG vaporizer and the LNG booster pump, the propane buffer tank, and the propane vaporizer, and pressure sensors and temperature sensors are provided on pipelines between the LNG and the heater.
5. The LNG heat exchanger real-vessel simulation test system of claim 4, wherein a pressure sensor on a line between the LNG vaporizer and the heater is further operable to control the second control valve.
6. The LNG heat exchanger real-ship simulation test system according to claim 1, wherein a variable frequency motor is provided on the LNG booster pump, and the variable frequency motor is used for driving the LNG booster pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911010444.2A CN110702444A (en) | 2019-10-23 | 2019-10-23 | LNG heat exchanger real ship simulation test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911010444.2A CN110702444A (en) | 2019-10-23 | 2019-10-23 | LNG heat exchanger real ship simulation test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110702444A true CN110702444A (en) | 2020-01-17 |
Family
ID=69200957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911010444.2A Pending CN110702444A (en) | 2019-10-23 | 2019-10-23 | LNG heat exchanger real ship simulation test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110702444A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061999A (en) * | 2021-11-12 | 2022-02-18 | 沪东中华造船(集团)有限公司 | High-efficiency compact heat exchanger testing device and testing method thereof |
| CN114112463A (en) * | 2021-11-12 | 2022-03-01 | 沪东中华造船(集团)有限公司 | Novel installation and debugging method for compact efficient heat exchanger |
| CN114252475A (en) * | 2020-09-22 | 2022-03-29 | 宝山钢铁股份有限公司 | Method for checking efficiency of heat exchanger |
-
2019
- 2019-10-23 CN CN201911010444.2A patent/CN110702444A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252475A (en) * | 2020-09-22 | 2022-03-29 | 宝山钢铁股份有限公司 | Method for checking efficiency of heat exchanger |
| CN114252475B (en) * | 2020-09-22 | 2023-10-17 | 宝山钢铁股份有限公司 | Method for verifying efficiency of heat exchanger |
| CN114061999A (en) * | 2021-11-12 | 2022-02-18 | 沪东中华造船(集团)有限公司 | High-efficiency compact heat exchanger testing device and testing method thereof |
| CN114112463A (en) * | 2021-11-12 | 2022-03-01 | 沪东中华造船(集团)有限公司 | Novel installation and debugging method for compact efficient heat exchanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110702444A (en) | LNG heat exchanger real ship simulation test system | |
| CN103308293B (en) | A kind of high temperature valve detection experiment system | |
| CN103033532B (en) | Experimental device for condensation heat-exchange of steam containing multi-component non-condensable gases | |
| CN108109708A (en) | Villiaumite cools down ball bed high-temperature heap reactor core fluid interchange experimental system for simulating | |
| CN101576518B (en) | Experimental device for evaporation, absorption and mass transferring of falling film of vertical tube | |
| CN207404852U (en) | A kind of liquefied ammonia prepares ammonium hydroxide device | |
| CN210834211U (en) | LNG heat exchanger real ship simulation test system | |
| CN210834210U (en) | LNG heat exchanger test system | |
| CN203259337U (en) | High-temperature valve detection test system | |
| CN110702443A (en) | LNG heat exchanger test system | |
| CN109630877A (en) | A kind of LNG regas system and working method | |
| CN110702851B (en) | Performance test system and method for phase change energy storage device | |
| CN208140618U (en) | Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery | |
| CN203500840U (en) | Recuperative electric heating device | |
| CN209342399U (en) | A kind of heat exchanger test device | |
| CN110189593B (en) | Accurate heat transfer comprehensive experiment device | |
| CN108593054A (en) | A kind of scaling method and device of cryogenic flow meter | |
| CN114755260A (en) | Intermediate medium type heat transfer test platform | |
| CN213121148U (en) | Gas heater testing arrangement | |
| CN208951669U (en) | A kind of double metering dispensers based on single current gauge | |
| CN204961061U (en) | Special heat transfer device of internal -combustion engine | |
| CN209783928U (en) | Vaporizer performance test device for LNG truck | |
| CN210742176U (en) | Performance test system for phase change energy storage device | |
| CN210090347U (en) | Energy storage system for laboratory | |
| CN202974679U (en) | Minitype water cooler measuring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |