CN209053647U - A kind of cold and hot utilization system of ship of more power devices - Google Patents
A kind of cold and hot utilization system of ship of more power devices Download PDFInfo
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- CN209053647U CN209053647U CN201822053384.XU CN201822053384U CN209053647U CN 209053647 U CN209053647 U CN 209053647U CN 201822053384 U CN201822053384 U CN 201822053384U CN 209053647 U CN209053647 U CN 209053647U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model provides a kind of cold and hot utilization system of ship of more power devices, including LNG feed system, Rankine cycle electricity generation system, low-temperature cold store system, air-conditioning system and heat energy utilization system, the cold energy of LNG is transmitted to Rankine cycle electricity generation system using refrigerant by the system, in low-temperature cold store system and air-conditioning system, the cold energy of LNG is used for cold energy generation, the condensation of the cooling supply and exhaust steam in steam turbine of low-temperature cold store and air-conditioning and the cooling of waste heat boiler waste heat flue gas, then the acting that thermal energy caused by the LNG gasification after-combustion for releasing cold energy is used for diesel engine and gas turbine is generated electricity again, the gasification that the waste heat that diesel engine and gas turbine generate is used for refrigerant in the power generation and Rankine cycle electricity generation system of steam turbine is heated simultaneously, and the heating that the waste heat of exhaust steam in steam turbine is used for LNG is gasified.The utility model realizes the comprehensive utilization to LNG cold energy and thermal energy, improves the capacity usage ratio of LNG, has good energy conservation and consumption reduction effects.
Description
Technical field
The utility model relates to a kind of cold and hot utilization system of LNG more particularly to a kind of more power devices, (diesel oil is motor-driven
Power device, gas-turbine power plant and steam turbine power plant) the cold and hot utilization system of ship.
Background technique
In recent years, new demand constantly proposed to the discharge of ship with international regulations, the LNG fuel of low pollution increasingly by
The favor of shipowner, so that more and more ships use LNG fuel.LNG is as a kind of new energy that green is inexpensive, not only
It can produce amount of heat, while as the super-low liquid under normal pressure being -162 DEG C, 1 ton of LNG gasifies from -162 DEG C to 0 DEG C,
The cooling capacity of 230~240kWh can be discharged, if so big cooling capacity is recycled, there is very considerable economic society
Benefit, therefore when using LNG as fuel, the cold and hot total energy approach of total system is carried out, system energy consumption can be greatly reduced.
In the Chinese patent of Patent No. CN105401989A, a kind of disclosed system for comprehensively utilizing LNG energy, this is comprehensive
It closes and the cold energy of LNG is used for freezer cooling supply, the ice making of ice making station and cooling gas turbine inlet air using system, by LNG gas
Change acting power generation and the heating of LNG of the generated thermal energy for gas turbine and steam turbine after burning, although the system
The comprehensive utilization of LNG cold energy and thermal energy is realized, but the system, which is not particularly suited for LNG mainly for the power station of land, to be moved
Power ship yet there are no the cold and hot utilization system of LNG for the more power devices of LNG Power Vessel.
Summary of the invention
The purpose of this utility model is to provide a kind of cold and hot utilization system of more power devices for LNG Power Vessel.
The system realizes the cold and hot comprehensive cascade utilization of LNG, improves the capacity usage ratio of LNG, and LNG cold energy is used for Rankine cycle hair
The condensation of the cooling supply and exhaust steam in steam turbine of electric, low-temperature cold store and air-conditioning and the cooling of waste heat boiler waste heat flue gas, by LNG gasification
For NG burn caused by thermal energy be used for the power generation of diesel engine and gas turbine, while more than diesel engine and gas turbine generated
Heating and gasifying of the heat for the first refrigerant in steam turbine power generation and Rankine cycle electricity generation system, and the thermal energy of exhaust steam in steam turbine is used
Gasify in the heating of LNG.
The technical solution of the utility model includes: a kind of cold and hot utilization system of ship of more power devices, comprising: LNG is supplied
To system, Rankine cycle electricity generation system, low-temperature cold store system, air-conditioning system and heat energy utilization system, the LNG feed system
Successively by LNG storage tank (1), LNG transportation by lighter pump (2), LNG booster pump (3), First Heat Exchanger (4), the second heat exchanger (5) and the
Three heat exchangers (6) are formed and are sequentially connected in series by pipeline, and the LNG transportation by lighter pump (2) is located at the LNG storage tank (1) bottom,
Its outlet is connect through pipeline with LNG booster pump (3) entrance, and LNG booster pump (3) outlet is changed through pipeline with described first
Hot device (4) tube-side inlet connection, First Heat Exchanger (4) the tube side outlet enter through pipeline and the second heat exchanger (5) tube side
Mouth connection, the second heat exchanger (5) tube side outlet are connect through pipeline with third heat exchanger (6) tube-side inlet, wherein
In First Heat Exchanger (4), LNG walks tube side, and the first refrigerant of the Rankine cycle electricity generation system walks shell side, in the second heat exchanger
(5) in, LNG walks tube side, and the second refrigerant of the low-temperature cold store system walks shell side, and in third heat exchanger (6), LNG walks tube side,
Shell-side fluid is the steam exhaust of steam turbine (28).
The Rankine cycle electricity generation system successively by First Heat Exchanger (4), first circulation pump (7), the first proportioning valve (8),
4th heat exchanger (9), expanding machine (10) and the first generator (11) composition, First Heat Exchanger (4) shell-side outlet is through pipe
Road pumps (7) entrance with the first circulation and connect, and first circulation pump (7) outlet is through pipeline and first proportioning valve (8)
Entrance connection, the first proportioning valve (8) outlet are connect through pipeline with the 4th heat exchanger (9) tube-side inlet, and the described 4th
The outlet of heat exchanger (9) tube side is connect through pipeline with the expanding machine (10) entrance, and the expanding machine (10) drives first hair
Motor (11) power generation, the expanding machine (10) outlet are connect through pipeline with the First Heat Exchanger (4) shell side inlet, wherein the
In four heat exchangers (9), the first refrigerant of the Rankine cycle electricity generation system walks tube side, and shell-side fluid is the useless of waste heat boiler (24)
Hot fume.
The low-temperature cold store system pumps (12), the second proportioning valve (13), Yu Kuhuan by the second heat exchanger (5), second circulation
Hot device (14), third proportioning valve (15), meat library heat exchanger (16) and the 5th heat exchanger (17) composition, second heat exchanger
(5) shell-side outlet pumps (12) entrance with the second circulation through pipeline and connect, and second proportioning valve (13) is changed with the fish library
The series pipe and the third proportioning valve (15) and the series pipe of meat library heat exchanger (16) of hot device (14) are connected in parallel,
It is connected after proportioning valve (the 13,15) entrance pipe is in parallel through pipeline and second circulation pump (12) outlet, the heat exchanger
It is connect through pipeline with the 5th heat exchanger (17) tube-side inlet after (14,16) export pipeline is in parallel, the 5th heat exchanger
(17) tube side outlet is connect through pipeline with the second heat exchanger (5) shell side inlet, wherein in the 5th heat exchanger (17), it is described
Second refrigerant of low-temperature cold store system walks tube side, and the third refrigerant of the air-conditioning system walks shell side.
The air-conditioning system is successively by the 5th heat exchanger (17), third circulating pump (18), the 4th proportioning valve (19) and sky
Adjust evaporator (20) form simultaneously be sequentially connected in series by pipeline, the 5th heat exchanger (17) shell-side outlet through pipeline with it is described
The connection of third circulating pump (18) entrance, third circulating pump (18) outlet connect through pipeline and the 4th proportioning valve (19) entrance
It connects, the 4th proportioning valve (19) outlet is connect through pipeline with the A/C evaporator (20) entrance, the A/C evaporator
(20) outlet is connect through pipeline with the 5th heat exchanger (17) shell side inlet.
The heat energy utilization system is by third heat exchanger (6), the 4th heat exchanger (9), the 5th proportioning valve (21), diesel engine
(22), the second generator (23), waste heat boiler (24), the 6th proportioning valve (25), gas turbine (26), third generator (27),
Steam turbine (28), the 4th generator (29), the 7th proportioning valve (30) and the 4th circulating pump (31) composition, the 5th proportioning valve
(21) with the tandem tube of the series pipe of the diesel engine (22) and the 6th proportioning valve (25) and the gas turbine (26)
Road is connected in parallel, and proportioning valve (the 21,25) entrance is connected through pipeline and the outlet of third heat exchanger (6) tube side, the 5th ratio
Example valve (21) is exported and is connect through pipeline with the diesel engine (22) fuel supply mouth, and the diesel engine (22) drives second hair
Motor (23) power generation, diesel engine (22) exhaust outlet are connect through pipeline with the waste heat boiler (24) air inlet, and the described 6th
Proportioning valve (25) outlet is connect through pipeline with the gas turbine (26) fuel supply mouth, described in gas turbine (26) drive
Third generator (27) power generation, gas turbine (26) exhaust outlet are connect through pipeline with the waste heat boiler (24) air inlet,
The exhaust outlet of the diesel engine (22) is located at the middle part of the waste heat boiler (24), and the exhaust outlet position of the gas turbine (26)
In the bottom of waste heat boiler (24), waste heat boiler (24) the superheated steam outlet is through pipeline and the steam turbine (28) air inlet
Connection, the steam turbine (28) drive the 4th generator (29) power generation, the 7th proportioning valve (30) entrance pipe and institute
It is connect after stating the parallel connection of third heat exchanger (6) shell side inlet pipeline with the steam turbine (28) exhaust outlet, the 7th proportioning valve
(30) lead to condensing plant and hot well after export pipeline is in parallel with third heat exchanger (6) the shell-side outlet pipeline, it is described cold
The condensation-water drain of solidifying equipment and hot well is connect through pipeline with the 4th circulating pump (31) entrance, the 4th circulating pump
(31) outlet is connect through pipeline with the waste heat boiler (24) water inlet, waste heat boiler (24) the waste heat discharge mouth through pipeline and
4th heat exchanger (9) the shell side inlet connection, the 4th heat exchanger (9) shell-side outlet lead to atmosphere.
Refrigerant in the Rankine cycle electricity generation system selects R1270, the refrigerant selection in the low-temperature cold store system
R134a, the refrigerant in the air-conditioning system select 50% ethylene glycol solution.
Detailed description of the invention
Fig. 1 is the flow chart of the cold and hot utilization system of the ship.
In figure: 1, LNG storage tank 2, LNG transportation by lighter pump 3, LNG booster pump 4, First Heat Exchanger
5, the second heat exchanger 6, third heat exchanger 7, first circulation pump the 8, first proportioning valve
9, the 4th heat exchanger 10, expanding machine 11, the first generator 12, second circulation pump
13, the second proportioning valve 14, fish library heat exchanger 15, third proportioning valve 16, meat library heat exchanger
17, the 5th heat exchanger 18, third circulating pump 19, the 4th proportioning valve 20, A/C evaporator
21, the 5th proportioning valve 22, diesel engine 23, the second generator 24, waste heat boiler 25,
Six proportioning valves
26, gas turbine 27, third generator 28, steam turbine 29, the 4th generator 30,
Seven proportioning valves
31, the 4th circulating pump.
Specific embodiment
Specific embodiment of the present utility model is described with reference to the accompanying drawing, to more fully understand that this is practical new
Type.
The main working process of system are as follows:
The LNG of LNG storage tank (1) bottom enters pressurization in LNG booster pump (3), pressurization after LNG lighters the conveying of pump (2)
LNG afterwards successively passes through First Heat Exchanger (4) and the second heat exchanger (5), cold energy is transmitted to respectively Rankine cycle electricity generation system,
In low-temperature cold store system and air-conditioning system, then LNG discharges remaining cold energy in third heat exchanger (6), is used for steam turbine
(28) condensation of steam exhaust, while LNG heating being gasified as NG using the thermal energy of steam turbine (28) steam exhaust and is heated to 30 DEG C, finally
NG points enter in heat energy utilization system for two-way.
In Rankine cycle electricity generation system, the R1270 that cold energy is obtained in First Heat Exchanger (4) pumps (7) through first circulation
Pressurization and the first proportioning valve (8) flow adjust after, R1270 enter the 4th heat exchanger (9) in utilize waste heat boiler (24)
Waste heat flue gas is heated to high-temperature gas, subsequently into expansion work in expanding machine (10) and the first generator (11) is driven to carry out
Power generation, the R1270 after acting returns in First Heat Exchanger (4) and condenses again, so recycles, reach LNG cold energy is used for it is bright
Agree the purpose of circulating generation.
In low-temperature cold store system, R134a the adding through second circulation pump (12) of cold energy is obtained in the second heat exchanger (5)
It is divided into two-way after pressure, enters in fish library heat exchanger (14) after the flow of the second proportioning valve (13) is adjusted all the way, fish library is cooling
To -20 DEG C, another way is adjusted in laggard incarnation library heat exchanger (16) through the flow of third proportioning valve (15), meat library is cooled to -
20 DEG C, enters in the 5th heat exchanger (17) after then two-way refrigerant converges, cold energy remaining in R134a is transmitted to air-conditioning system
In, last R134a is returned in the second heat exchanger (5) and is condensed again, is so recycled, is reached LNG cold energy being used for low-temperature cold store
The purpose of cooling supply.
Within air-conditioning systems, 50% ethylene glycol solution of cold energy is obtained in the 5th heat exchanger (17) through third circulating pump
(18) flow of pressurization and the 4th proportioning valve (19) enters after adjusting discharges cold energy in A/C evaporator (20), will flow through steaming
Air between hair device (20) fin is cooled to 20 DEG C, and last 50% ethylene glycol solution returns to cold again in the 5th heat exchanger (17)
It is solidifying, it so recycles, achievees the purpose that LNG cold energy being used for air-conditioning cooling supply.
In heat energy utilization system, NG points for being heated to 30 DEG C are two-way, the flow tune all the way through the 5th proportioning valve (21)
Enter burning expansion in diesel engine (22) after section to do work and the second generator (23) is driven to generate electricity, its waste heat flue gas is discharged into
In waste heat boiler (24), another way enters burning expansion in gas turbine (26) after the flow of the 6th proportioning valve (25) is adjusted and does
Function simultaneously drives third generator (27) to generate electricity, its waste heat flue gas is discharged into waste heat boiler (24), wherein due to diesel engine
(22) delivery temperature is 280 ~ 360 DEG C, and the delivery temperature of gas turbine (26) is 450 ~ 600 DEG C, so diesel engine (22)
Exhaust outlet is located at the middle part of waste heat boiler (24), and the exhaust outlet of gas turbine (26) is located at the bottom of waste heat boiler (24), remaining
Water in waste heat boiler (24) was heated to be by heat boiler (24) using the waste heat of diesel engine (22) and gas turbine (26) flue gas
Hot steam, superheated steam enter acting in steam turbine (28) through pipeline, drive the 4th generator (29) to generate electricity, then steamer
Steam exhaust in machine (28) enters in third heat exchanger (6), and LNG gasification is NG and is heated to 30 DEG C simultaneously by the thermal energy using itself
Steam exhaust is condensed using the remaining cold energy of LNG in third heat exchanger (6), condensed steam exhaust is discharged into condensing plant through pipeline
With further condensed in hot well, by steam turbine (28) steam exhaust total condensation be water, then condensed water through the 4th circulation
Pump return in waste heat boiler (24) after the pressurization of (31) again be heated to be superheated steam, it is useless after finally heated complete condensed water
Hot fume enters in the 4th heat exchanger (9) through pipeline the R1270 in Rankine cycle electricity generation system being heated to be high-temperature gas, simultaneously
Using the cold energy cooled flue gas of R1270, atmosphere is then drained into, is so recycled, reaches and utilizes thermal energy caused by NG burning
And the purpose of LNG cold energy.
In heat energy utilization system, when the temperature of NG is higher than 30 DEG C, the 7th proportioning valve (30) is opened, and steam turbine (28) is weary
Vapour is directly entered condensing plant without third heat exchanger (6) and hot well condenses, when the temperature of NG is lower than 30 DEG C, the 7th ratio
Valve (30) is closed, and wherein third heat exchanger (6) plays booster action to the condensation of steam exhaust, and steam exhaust is mainly in condensing plant and hot water
Well total condensation is water.
Generator (11,23,27,29) is grid-connected in above system, powers to Ship Propeling motor, realizes that marine vessel power pushes away
Into.
And the foregoing is merely the preferred embodiment of the utility model, be not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (2)
1. a kind of cold and hot utilization system of ship of more power devices characterized by comprising LNG feed system, Rankine follow
Ring electricity generation system, low-temperature cold store system, air-conditioning system and heat energy utilization system, the LNG feed system is successively by LNG storage tank
(1), LNG transportation by lighter pump (2), LNG booster pump (3), First Heat Exchanger (4), the second heat exchanger (5) and third heat exchanger (6) group
It is sequentially connected in series at and by pipeline, the LNG transportation by lighter pump (2) is located at the LNG storage tank (1) bottom, exports through pipeline
It is connect with LNG booster pump (3) entrance, LNG booster pump (3) outlet is through pipeline and the First Heat Exchanger (4) tube side
Entrance connection, First Heat Exchanger (4) the tube side outlet is connect through pipeline with the second heat exchanger (5) tube-side inlet, described
The outlet of second heat exchanger (5) tube side is connect through pipeline with third heat exchanger (6) tube-side inlet, wherein in First Heat Exchanger
(4) in, LNG walks tube side, and the first refrigerant of the Rankine cycle electricity generation system walks shell side, and in the second heat exchanger (5), LNG is walked
Second refrigerant of tube side, the low-temperature cold store system walks shell side, and in third heat exchanger (6), LNG walks tube side, and shell-side fluid is
The steam exhaust of steam turbine (28);
The Rankine cycle electricity generation system successively pumps (7), the first proportioning valve (8), the 4th by First Heat Exchanger (4), first circulation
Heat exchanger (9), expanding machine (10) and the first generator (11) composition, First Heat Exchanger (4) shell-side outlet through pipeline with
First circulation pump (7) the entrance connection, first circulation pump (7) outlet is through pipeline and the first proportioning valve (8) entrance
Connection, the first proportioning valve (8) outlet are connect through pipeline with the 4th heat exchanger (9) tube-side inlet, the 4th heat exchange
The outlet of device (9) tube side is connect through pipeline with the expanding machine (10) entrance, and the expanding machine (10) drives first generator
(11) it generates electricity, expanding machine (10) outlet is connect through pipeline with the First Heat Exchanger (4) shell side inlet, wherein changing the 4th
In hot device (9), the first refrigerant of the Rankine cycle electricity generation system walks tube side, and shell-side fluid is the waste heat cigarette of waste heat boiler (24)
Gas;
The low-temperature cold store system pumps (12), the second proportioning valve (13), fish library heat exchanger by the second heat exchanger (5), second circulation
(14), third proportioning valve (15), meat library heat exchanger (16) and the 5th heat exchanger (17) composition, the second heat exchanger (5) shell
Journey outlet pumps (12) entrance with the second circulation through pipeline and connect, second proportioning valve (13) and fish library heat exchanger
(14) series pipe and the third proportioning valve (15) and the series pipe of meat library heat exchanger (16) is connected in parallel, described
It is connected after proportioning valve (13,15) entrance pipe is in parallel through pipeline and second circulation pump (12) outlet, the heat exchanger (14,
16) it is connect through pipeline with the 5th heat exchanger (17) tube-side inlet after export pipeline is in parallel, the 5th heat exchanger (17) pipe
Journey outlet is connect through pipeline with the second heat exchanger (5) shell side inlet, wherein in the 5th heat exchanger (17), the low temperature cold
Second refrigerant of library system walks tube side, and the third refrigerant of the air-conditioning system walks shell side;
The air-conditioning system is successively steamed by the 5th heat exchanger (17), third circulating pump (18), the 4th proportioning valve (19) and air-conditioning
Hair device (20) is formed and is sequentially connected in series by pipeline, and the 5th heat exchanger (17) shell-side outlet is through pipeline and the third
The connection of circulating pump (18) entrance, third circulating pump (18) outlet are connect through pipeline with the 4th proportioning valve (19) entrance,
4th proportioning valve (19) outlet is connect through pipeline with the A/C evaporator (20) entrance, and the A/C evaporator (20) goes out
Mouth is connect through pipeline with the 5th heat exchanger (17) shell side inlet;
The heat energy utilization system by third heat exchanger (6), the 4th heat exchanger (9), the 5th proportioning valve (21), diesel engine (22),
Second generator (23), waste heat boiler (24), the 6th proportioning valve (25), gas turbine (26), third generator (27), steam turbine
(28), the 4th generator (29), the 7th proportioning valve (30) and the 4th circulating pump (31) composition, the 5th proportioning valve (21) with
The series pipe of the diesel engine (22) and the 6th proportioning valve (25) are in parallel with the series pipe of the gas turbine (26)
Connection, proportioning valve (the 21,25) entrance are connected through pipeline and the outlet of third heat exchanger (6) tube side, the 5th proportioning valve
(21) outlet is connect through pipeline with the diesel engine (22) fuel supply mouth, and the diesel engine (22) drives second generator
(23) it generates electricity, diesel engine (22) exhaust outlet is connect through pipeline with the waste heat boiler (24) air inlet, the 6th ratio
Valve (25) outlet is connect through pipeline with the gas turbine (26) fuel supply mouth, and the gas turbine (26) drives the third
Generator (27) power generation, gas turbine (26) exhaust outlet is connect through pipeline with the waste heat boiler (24) air inlet, described
The exhaust outlet of diesel engine (22) is located at the middle part of the waste heat boiler (24), and the exhaust outlet of the gas turbine (26) is positioned at remaining
The bottom of heat boiler (24), waste heat boiler (24) the superheated steam outlet connect through pipeline and the steam turbine (28) air inlet
Connect, the steam turbine (28) drives the 4th generator (29) power generation, the 7th proportioning valve (30) entrance pipe with it is described
It is connect after third heat exchanger (6) shell side inlet pipeline is in parallel with the steam turbine (28) exhaust outlet, the 7th proportioning valve (30)
Lead to condensing plant and hot well after export pipeline is in parallel with third heat exchanger (6) the shell-side outlet pipeline, the condensation is set
Standby and hot well condensation-water drain is connect through pipeline with the 4th circulating pump (31) entrance, and the 4th circulating pump (31) goes out
It mouthful is connect through pipeline with the waste heat boiler (24) water inlet, waste heat boiler (24) the waste heat discharge mouth is through pipeline and described the
The connection of four heat exchangers (9) shell side inlet, the 4th heat exchanger (9) shell-side outlet lead to atmosphere.
2. a kind of cold and hot utilization system of ship of more power devices according to claim 1, it is characterised in that: described
Refrigerant in Rankine cycle electricity generation system selects R1270, and the refrigerant in the low-temperature cold store system selects R134a, the air-conditioning
Refrigerant in system selects 50% ethylene glycol solution.
Priority Applications (1)
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CN201822053384.XU CN209053647U (en) | 2018-12-07 | 2018-12-07 | A kind of cold and hot utilization system of ship of more power devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201822053384.XU CN209053647U (en) | 2018-12-07 | 2018-12-07 | A kind of cold and hot utilization system of ship of more power devices |
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Publication Number | Publication Date |
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CN209053647U true CN209053647U (en) | 2019-07-02 |
Family
ID=67054783
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CN201822053384.XU Expired - Fee Related CN209053647U (en) | 2018-12-07 | 2018-12-07 | A kind of cold and hot utilization system of ship of more power devices |
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Country | Link |
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CN (1) | CN209053647U (en) |
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2018
- 2018-12-07 CN CN201822053384.XU patent/CN209053647U/en not_active Expired - Fee Related
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Granted publication date: 20190702 Termination date: 20191207 |