CN209083512U - LNG receiving station BOG compressor large-sized wind cooling device - Google Patents
LNG receiving station BOG compressor large-sized wind cooling device Download PDFInfo
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- CN209083512U CN209083512U CN201821990534.3U CN201821990534U CN209083512U CN 209083512 U CN209083512 U CN 209083512U CN 201821990534 U CN201821990534 U CN 201821990534U CN 209083512 U CN209083512 U CN 209083512U
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Abstract
The utility model relates to arrive a kind of LNG receiving station BOG compressor large-sized wind cooling device, it include bracket, heat exchanger tube and level-one cooling fan are provided on bracket, second level cooling fan and three-level cooling fan, level-one cooling fan, second level cooling fan and three-level cooling fan are driven by main motor, it further include having central controller, central controller includes Distributed Control System and temperature measurement on-line element, temperature measurement on-line element testing heat exchanger tube temperature is excessively high, signal is transmitted to Distributed Control System, Distributed Control System opens level-one cooling fan according to temperature conditions, second level cooling fan and three-level cooling fan exchange heat pipe are cooled down, the utility model can realize the efficient cooling of three-level BOG process high-temperature gas;Air quantity can be controlled by three groups of cooling fans and shutter opening angle, realize that 135 DEG C of BOG process gas of every grade of highest are cooled to 40 DEG C;Securely and reliably, it is ensured that BOG compressor long period even running.
Description
Technical field
The utility model is specifically related to a kind of LNG receiving station BOG compressor large-sized wind cooling device.
Background technique
LNG (Liquefied Natural Gas) is the abbreviation of liquefied natural gas, and the main function of LNG receiving station is to connect
Receipts, storage and gasification LNG are simultaneously supplied by natural gas line to plant gas and urban subscriber, and some receiving stations go back as needed
Provided with LNG tank car loading station, LNG is directly supplied to user, LNG is due to its huge clean energy sexual clorminance, at present in state
It is inside greatly developed, wherein the construction of LNG receiving station is like a raging fire at home, is planned according to national energy, and natural gas is in energy
Ratio in the consumption of source rises year by year.
LNG belongs to super-low liquid, although storage tank has good cold insulation thermal-insulation function in storage, still there is heat unavoidably
In incoming tank, LNG is caused to evaporate to be formed BOG (boil-off gas), this part BOG needs to handle in time, and LNG receiving station is general
Using technique and recondensation process processing BOG is directly exported, two kinds of techniques have no the difference of essence only by evaporation gas disposal
It is different in the processing of system boil-off gas.
Evaporation gas processing system is mainly made of BOG compressor, after-condenser and boil-off gas pipe-line system, BOG compressor
Be the key equipment of BOG processing its effect it is the excessive boil-off gas of processing, the constant of pressure in LNG storage tank is maintained, since BOG is pressed
The gas of contracting machine compression is generally hydrocarbon gas, since hydrocarbon gas is inflammable and explosive, so in order to reduce the temperature of hydrocarbon gas,
Must assure that the temperature in BOG compressor is lower, the prior art generally uses water cooling, and water-cooled cooling is restricted larger, installation with
And maintenance is all more troublesome, and its higher cost, is unsuitable for universal be mounted in all BOG compressors.
Utility model content
The utility model lies in that it is simple to propose a kind of structure, easy to operate, preferably a kind of LNG receiving station of cooling effect
BOG compressor large-sized wind cooling device efficiently solves BOG compressor in the prior art and mostly uses water cooling greatly, what inconvenience was popularized
Problem.
Technical solution described in the utility model is as follows;A kind of LNG receiving station BOG compressor large-sized wind cooling device, including
There is bracket, heat exchanger tube is provided on the bracket and is had cooling cooling fan is blowed for heat exchanging pipe, it is described cold
But fan includes level-one cooling fan, second level cooling fan and three-level cooling fan, and the level-one cooling fan, second level are cold
But fan and three-level cooling fan are driven by main motor, further include having central controller, the center control dress
Setting includes the Distributed Control System for controlling main motor and the temperature measurement on-line element for detecting heat exchanger tube temperature, it is described
Line temperature element detection heat exchanger tube temperature is excessively high, transmits signal to Distributed Control System, Distributed Control System is according to temperature conditions
Level-one cooling fan, second level cooling fan and three-level cooling fan exchange heat pipe is opened to be cooled down.
The utility model is further arranged to: further including having shutter, the shutter is located above heat exchanger tube, described
Curtain adjustable angle is arranged on shutter.
The utility model is further arranged to: the two sides on the bracket are extended outward respectively forms work
Platform is separately provided for control level-one cooling fan, second level cooling fan and three-level cooling fan on the workbench
Execute-in-place column.
The utility model is further arranged to: the technique for the disengaging of BOG process gas is provided on the heat exchanger tube
Gas inlet flange mouth and process gas outlet flange port.
The utility model has the beneficial effects that
1, the efficient cooling of three-level BOG process high-temperature gas can be achieved;It can be opened by three groups of cooling fans and shutter
Angle control air quantity is opened, realizes that 135 DEG C of BOG process gas of every grade of highest are cooled to 40 DEG C;Securely and reliably, it is ensured that BOG pressure
The operation of contracting captain's cyclic stationary.
2, three groups of fan motors can realize long-range control by DCS and SIS, can individually open, part is opened, is all opened
The function of opening and all close, then cooperate temperature measurement on-line element, meet and opened in some or all of most hot moon cooling fan,
The independent unlatching of most cold moon cooling fan is all closed, and cooling control is flexibly carried out according to the variation of environment and operating condition.
3, large-sized wind cooling device is equipped with on-line temperature monitoring, when environment temperature >=30 DEG C, to guarantee cooler outlet temperature
40 DEG C, three groups of fan motors are all turned on;As 30 DEG C of 0 DEG C≤environment temperature <, automatically switches to two groups of fans and open;If environment
It 0 DEG C of temperature <, automatically switches to one group of fan and individually opens;Realize electromechanical integration and energy-saving and emission-reduction.It can also control manually simultaneously
Make three groups of fan motors, flexible and convenient operation.
Detailed description of the invention
Fig. 1 is LNG receiving station BOG compressor large-sized wind cooling apparatus structure schematic diagram in the utility model.
Fig. 2 is Fig. 1 schematic cross-sectional view in the utility model.
Fig. 3 is level-one cooling fan theory structure schematic diagram in the utility model.
Fig. 4 is second level cooling fan theory structure schematic diagram in the utility model.
Fig. 5 is three-level cooling fan theory structure schematic diagram in the utility model.
Figure label meaning is as follows: 1- process gas inlet flange mouth;2- process gas outlet flange port;3- cooling fan;4-
Main motor;5- shutter;6- workbench;7- heat exchanger tube.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
The utility model is described in detail below with reference to Fig. 1 to Fig. 5: a kind of LNG receiving station BOG compressor is filled with large-sized wind cooling
It sets, includes bracket, heat exchanger tube 7 is provided on the bracket and is had cooling cooling wind is blowed for heat exchanging pipe 7
Fan 3, the cooling fan 3 include level-one cooling fan, second level cooling fan and three-level cooling fan, and the level-one is cooling
Fan, second level cooling fan and three-level cooling fan are driven by main motor 4, further include having central controller, institute
Stating central controller includes Distributed Control System for controlling main motor 4 and for detecting the online of 7 temperature of heat exchanger tube
Temperature element, 7 temperature of the temperature measurement on-line element testing heat exchanger tube are excessively high, transmitting signal to Distributed Control System, collecting and distributing control
System carries out cold according to temperature conditions opening level-one cooling fan, second level cooling fan and three-level cooling fan exchange heat pipe 7
But.
In above structure: a kind of LNG receiving station BOG compressor large-sized wind cooling device includes level-one cooling fan, two
Grade phoenix fault fan and three-level cooling fan, respectively correspond the cooling grade needed to BOG compressor, when on-line monitoring element testing
When into heat exchanger tube 7, temperature reaches the first order, the Distributed Control System in central controller receives on-line checking element biography
After the temperature information passed, it will control main motor 4 starts level-one cooling fan exchange heat pipe 7 and cools down;When online prison
Element testing is surveyed when temperature reaches the second level into heat exchanger tube 7, the Distributed Control System in central controller receives online
After the temperature information of detecting element transmitting, it will control main motor 4 starts second level cooling fan exchange heat pipe 7 and carries out cooling drop
Temperature;Distributed Control System when temperature reaches the third level to on-line monitoring element testing into heat exchanger tube 7, in central controller
Receive on-line checking element transmitting temperature information after, it will control main motor 4 start three-level cooling fan exchange heat pipe 7 into
Row cools, and realizes that 135 DEG C of BOG process gas of every grade of highest are cooled to 40 DEG C, and the temperature that can be realized exchange heat pipe 7 is timely
It detects to timely start cooling grade accordingly, ensure that BOG compressor long period even running and be in normal work
Temperature.
In the present embodiment: further including having shutter 5, the shutter 5 is located at 7 top of heat exchanger tube, window on the shutter 5
The setting of curtain adjustable angle.
In above structure: shutter 5 is located at 7 top of heat exchanger tube, passes through 5 opening angle of three groups of cooling fans and shutter
Air quantity is controlled, ensure that heat exchanger tube 7 is in ventilation state, heat can shed in time.
In the present embodiment: the two sides on the bracket are extended outward respectively forms workbench 6, the workbench 6
On be separately provided for control level-one cooling fan, second level cooling fan and three-level cooling fan execute-in-place column.
In above structure: being separately provided for control level-one cooling fan, second level cooling fan and three on workbench 6
The execute-in-place column of grade cooling fan, realizes the control to main motor 4 manually by execute-in-place column, prevents center control dress
When setting failure, large-sized wind cooling device can also work on.
In the present embodiment: being provided with the process gas inlet flange mouth 1 for the disengaging of BOG process gas on the heat exchanger tube 7
With process gas outlet flange port 2.
In above structure: being provided with process gas inlet flange mouth 1 and process gas outlet flange port 2, BOG work on heat exchanger tube 7
Skill gas enters in heat exchanger tube 7 from process gas inlet flange mouth 1, by level-one cooling fan, second level cooling fan or three-level
Cooling fan is cooled down, and guarantees that BOG process gas is at normal transport temperature.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications, above-mentioned vacation can also be made
If these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (4)
1. a kind of LNG receiving station BOG compressor large-sized wind cooling device, it is characterised in that: include bracket, set on the bracket
It is equipped with heat exchanger tube and has and cooling cooling fan is blowed for heat exchanging pipe, the cooling fan includes that level-one is cooling
Fan, second level cooling fan and three-level cooling fan, the level-one cooling fan, second level cooling fan and three-level cooling wind
Fan is driven by main motor, further includes having central controller, the central controller includes for controlling main electricity
The Distributed Control System of machine and temperature measurement on-line element for detecting heat exchanger tube temperature, the temperature measurement on-line element testing heat exchanger tube
Temperature is excessively high, and transmitting signal to Distributed Control System, Distributed Control System opens level-one cooling fan, second level according to temperature conditions
Cooling fan and three-level cooling fan exchange heat pipe are cooled down.
2. a kind of LNG receiving station BOG compressor large-sized wind cooling device according to claim 1, it is characterised in that: also wrap
Shutter is included, the shutter is located above heat exchanger tube, curtain adjustable angle setting on the shutter.
3. a kind of LNG receiving station BOG compressor large-sized wind cooling device according to claim 1, it is characterised in that: described
Two sides on bracket are extended outward respectively forms workbench, and it is cold that control level-one is separately provided on the workbench
But the execute-in-place column of fan, second level cooling fan and three-level cooling fan.
4. a kind of LNG receiving station BOG compressor large-sized wind cooling device according to claim 1, it is characterised in that: described
The process gas inlet flange mouth and process gas outlet flange port for the disengaging of BOG process gas are provided on heat exchanger tube.
Priority Applications (1)
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CN201821990534.3U CN209083512U (en) | 2018-11-29 | 2018-11-29 | LNG receiving station BOG compressor large-sized wind cooling device |
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CN201821990534.3U CN209083512U (en) | 2018-11-29 | 2018-11-29 | LNG receiving station BOG compressor large-sized wind cooling device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109340088A (en) * | 2018-11-29 | 2019-02-15 | 浙江强盛压缩机制造有限公司 | LNG receiving station BOG compressor large-sized wind cooling device |
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2018
- 2018-11-29 CN CN201821990534.3U patent/CN209083512U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109340088A (en) * | 2018-11-29 | 2019-02-15 | 浙江强盛压缩机制造有限公司 | LNG receiving station BOG compressor large-sized wind cooling device |
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