CN206237147U - The distributed energy of liquefied natural gas plant stand utilizes system - Google Patents
The distributed energy of liquefied natural gas plant stand utilizes system Download PDFInfo
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- CN206237147U CN206237147U CN201621362708.2U CN201621362708U CN206237147U CN 206237147 U CN206237147 U CN 206237147U CN 201621362708 U CN201621362708 U CN 201621362708U CN 206237147 U CN206237147 U CN 206237147U
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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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- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
System is utilized the utility model proposes a kind of distributed energy of liquefied natural gas plant stand, gas internal-combustion engine including incendivity natural gas, cylinder sleeve water out is connected with first pump housing that jacket water can be exported from cylinder sleeve water out, the discharge ends of first pump housing are connected with the lithium bromide unit equipped with lithium bromide refrigerating agent, first entrance is connected with the discharge ends of first pump housing, and first outlet is connected with cylinder sleeve water inlet；The exhaust opening of gas internal-combustion engine is connected with the heat exchanger that can transmit the heat of flue gas to conduction oil, heat exchanger entrance is connected with exhaust opening, and heat exchanger exit is connected with lithium bromide unit, and second entrance is connected with heat exchanger exit, second outlet is connected with air-introduced machine, the outlet air end and atmosphere of air-introduced machine；The clutch end of gas internal-combustion engine is connected with generator, and the power output end of generator is connected to power network；Lithium bromide unit 7 is additionally provided with the 4th entrance and the 4th outlet, and the 4th entrance is connected with the 3rd pump housing 11 that water can be discharged to the 4th entrance.The utility model energy utilization rate is high and low cost.
Description
Technical field
The utility model belongs to natural gas energy resource and utilizes technical field, more particularly to a kind of distribution of liquefied natural gas plant stand
Formula energy utilization system.
Background technology
Liquefied natural gas (LNG) increases sharply as efficient, clean energy resource, its ratio occupied in energy supply.By
Feed gas compressor, refrigerant compressor in liquefied natural gas plant stand are high-power current consuming apparatus, and general using municipal administration
Power supply network is powered, meanwhile, the depickling gas system and dewatering system of liquefied natural gas plant stand typically use electric heater or conduction oil
Stove provides high temperature, therefore, high cost and the low defect of efficiency of energy utilization can be caused.
The content of the invention
The utility model is low for above-mentioned liquefied natural gas plant stand energy utilization rate, and high cost during using energy source
Technical problem, proposes that a kind of energy utilization rate is high and distributed energy of liquefied natural gas plant stand of low cost utilizes system.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of distributed energy of liquefied natural gas plant stand utilizes system, including incendivity natural gas gas internal-combustion engine,
Gas internal-combustion engine includes gas inlet, can discharge the cylinder sleeve water out of gas internal-combustion engine cylinder sleeve inner cylinder liner water, can be in combustion gas
Combustion engine cylinder sleeve is input into the cylinder sleeve water inlet of jacket water, can discharge the exhaust opening of flue gas, and combustion engine powered output end, natural gas
Entrance is connected with natural gas line；
Cylinder sleeve water out is connected with first pump housing that jacket water can be exported from cylinder sleeve water out, the discharge ends of first pump housing
The lithium bromide unit equipped with lithium bromide refrigerating agent is connected with, lithium bromide unit is provided with first entrance and first outlet, and first enters
Mouth is connected with the discharge ends of first pump housing, and first outlet is connected with cylinder sleeve water inlet；
The exhaust opening of gas internal-combustion engine is connected with the heat exchanger that can transmit the heat of flue gas to conduction oil, and heat exchanger is provided with
Heat exchanger entrance and heat exchanger exit, heat exchanger entrance are connected with exhaust opening, and heat exchanger exit is connected with lithium bromide unit, bromination
Lithium unit is provided with second entrance and second outlet, and second entrance is connected with heat exchanger exit, and second outlet is connected with air-introduced machine,
The outlet air end and atmosphere of air-introduced machine；
The clutch end of gas internal-combustion engine is connected with generator, and the power output end of generator is connected to power network.
Preferably, heat exchanger is connected with adjustable the first valve body for entering heat exchanger entrance flue gas flow.
Preferably, be provided with the second valve body between gas internal-combustion engine and lithium bromide unit, the inlet end of the second valve body with
The exhaust opening connection of gas internal-combustion engine, the outlet side of the second valve body is connected with the second entrance of lithium bromide unit.
Preferably, lithium bromide unit is connected with and being connected with water and the cooling unit of water cooling, lithium bromide unit can be set
There are the 3rd outlet and the 3rd entrance, the 3rd outlet is connected with cooling unit, and cooling unit is provided with cooling unit entrance and cooling
Unit is exported, and cooling unit entrance is connected with the 3rd outlet, and cooling unit outlet is connected with the 3rd entrance, and cooling unit is connected with
Cooling water in cooling unit can be input into second pump housing of lithium bromide unit.
Preferably, lithium bromide unit is provided with the 4th entrance and the 4th outlet, the 4th entrance is connected with and can enter to the 4th
3rd pump housing of mouth discharge water, the water side of the 3rd pump housing is connected with the 4th entrance, and the water intake end of the 3rd pump housing is connected with into water
Pipe, the 4th outlet is connected with outlet pipe.
Compared with prior art, advantage of the present utility model and good effect are：
The distributed energy of the utility model liquefied natural gas plant stand is using system by setting lithium bromide unit, generating electricity
Machine, heat exchanger, first pump housing and air-introduced machine, can realize the trilogy supply of cold and hot electric energy：Electric energy is available for whole LNG plant
Stand electricity consumption；Heat energy can be used for depickling gas system and dewatering system；Cold energy can be used for the precooling of natural gas and compressor refrigerant, with
Reduce the load of compressor.Therefore, the distributed energy of the utility model liquefied natural gas plant stand using system to the profit of the energy
It is (more than 70% can be reached) high with rate.
Brief description of the drawings
Fig. 1 utilizes the overall structure diagram of system for the distributed energy of the utility model liquefied natural gas plant stand.
Above in each figure：1st, gas internal-combustion engine；2nd, generator；3rd, the first valve body；4th, the second valve body；5th, heat exchanger；6th, draw
Blower fan；7th, lithium bromide unit；8th, first pump housing；9th, cooling unit；10th, second pump housing；11st, the 3rd pump housing.
Specific embodiment
Below, the utility model is specifically described by exemplary implementation method.It should be appreciated, however, that not having
In the case of being further discussed below, element, structure and features in an implementation method can also be advantageously incorporated into other implementations
In mode.
, it is necessary to explanation, term " first ", " second ", " the 3rd ", " the 4th " only use in description of the present utility model
In description purpose, and it is not intended that indicating or implying relative importance.
As shown in figure 1, a kind of distributed energy of liquefied natural gas plant stand utilizes system, including incendivity natural gas combustion
Gas internal combustion engine 1, gas internal-combustion engine 1 includes gas inlet, can discharge the cylinder sleeve water out of gas internal-combustion engine cylinder sleeve inner cylinder liner water,
The exhaust opening of flue gas can be discharged to the cylinder sleeve water inlet for going out gas internal-combustion engine cylinder sleeve input jacket water, and it is combustion engine powered
Output end, gas inlet is connected with natural gas line；
Further, cylinder sleeve water out is connected with first pump housing 8 that jacket water can be exported from cylinder sleeve water out, first pump housing
8 discharge ends are connected with the lithium bromide unit 7 equipped with lithium bromide refrigerating agent, and lithium bromide unit 7 is provided with first entrance and first
Outlet, first entrance is connected with the discharge ends of first pump housing 8, and first outlet is connected with cylinder sleeve water inlet, above-mentioned first pump housing 8,
Lithium bromide unit 7 may make up cylinder sleeve water loop with gas internal-combustion engine 1：Jacket water flows out from cylinder sleeve water out, defeated through first pump housing 8
Enter to first entrance, and then lithium bromide unit 7 is flowed into through first entrance, and then go out from first after the cooling of lithium bromide unit 7
Mouth output, and then be input into cylinder sleeve water out, most flow back into gas internal-combustion engine cylinder sleeve through jacket water outlet afterwards；
Further, the exhaust opening of gas internal-combustion engine 1 is connected with the heat exchanger 5 that can transmit the heat of flue gas to conduction oil, changes
Hot device 5 is provided with heat exchanger entrance and heat exchanger exit, and heat exchanger entrance is connected with exhaust opening, heat exchanger exit and lithium bromide single
Unit 7 connects, and lithium bromide unit 7 is provided with second entrance and second outlet, and second entrance is connected with heat exchanger exit, second outlet
It is connected with air-introduced machine 6, the outlet air end and atmosphere of air-introduced machine 6, above-mentioned heat exchanger 5, lithium bromide unit 7, air-introduced machine 6 and combustion gas
Internal combustion engine 1 may make up flue main road：Flue gas is exported from the exhaust opening of gas internal-combustion engine 1, is input into heat exchanger through heat exchanger entrance
In exchanged heat, and then exported to second entrance through heat exchanger exit, and then be input into lithium bromide unit 7 through second entrance
Row cooling, and then exported to air-introduced machine 6 through second outlet, most exported to air through air-introduced machine 6 afterwards；
The clutch end of gas internal-combustion engine 1 is connected with generator 2, and the power output end of generator 2 is connected to power network, on
State generator 2, power network and gas internal-combustion engine 1 constitutes generating main road：The kinetic energy exported from the clutch end of gas internal-combustion engine 1 is passed
Generator 2 is handed to, and then generator 2 converts kinetic energy into electric energy, last generator 2 transmits to power network electric energy, for whole
Liquefied natural gas plant stand electricity consumption.
The distributed energy of the utility model liquefied natural gas plant stand is using system by setting lithium bromide unit 7, generating electricity
Machine 2, heat exchanger 5, first pump housing 8 and air-introduced machine 6, can realize the trilogy supply of cold and hot electric energy：Electric energy is available for whole liquefaction natural
Gas plant stand electricity consumption；Heat energy can be used for depickling gas system and dewatering system；Cold energy can be used for the pre- of natural gas and compressor refrigerant
It is cold, to reduce the load of compressor.Therefore, the distributed energy of the utility model liquefied natural gas plant stand utilizes system to the energy
Utilization rate it is (more than 70% can be reached) high.
In addition, heat exchanger 5 is connected with adjustable the first valve body 3 for entering heat exchanger entrance flue gas flow, to control flue
The flow of main road flue gas.
Preferably, the second valve body 4, the inlet end of the second valve body 4 are provided between gas internal-combustion engine 1 and lithium bromide unit 7
Exhaust opening with gas internal-combustion engine 1 is connected, and the outlet side of the second valve body 4 is connected with the second entrance of lithium bromide unit 7, and above-mentioned
Two valve bodies 4, lithium bromide unit 7, air-introduced machine 6 may make up flue branch road with gas internal-combustion engine 1：Row of the flue gas from gas internal-combustion engine 1
Mouth is exported, and is input into second entrance through the second valve body 4, and then is input into lithium bromide unit 7 through second entrance and is cooled down,
And then exported to air-introduced machine 6 through second outlet, most exported to air through air-introduced machine 6 afterwards, with this when depickling gas system and dehydration are
During system thermic load reduction, the high-temperature flue gas that gas internal-combustion engine 1 is produced can be fed directly to by the flue branch road of gas internal-combustion engine 1
Fume hot-water type lithium bromide unit 7.
Further, lithium bromide unit 7 is also associated with being connected with water and can setting the cooling unit 9 of water cooling, lithium bromide unit 7
Be equipped with the 3rd outlet and the 3rd entrance, the 3rd outlet be connected with cooling unit 9, cooling unit 9 be provided with cooling unit entrance and
Cooling unit is exported, and cooling unit entrance is connected with the 3rd outlet, and but unit outlet is connected with the 3rd entrance, and cooling unit 9 connects
Being connected to can be input into the cooling water in cooling unit 9 to second pump housing 10 of lithium bromide unit 7, above-mentioned cooling unit 9, the second pump
Body 10 may make up the first chilled(cooling) water return (CWR) with lithium bromide unit 7：Cooling water after being cooled down through cooling unit 9 is carried in second pump housing 10
Under the power of confession, by cooling unit outlet output to the 3rd entrance, and it is input into lithium bromide unit 7 through the 3rd entrance and is inhaled
Heat, and then exported through the 3rd outlet, cooled down in most flowing back into cooling unit 9 through cooling unit entrance afterwards.
In addition, lithium bromide unit 7 is additionally provided with the 4th entrance and the 4th outlet, the 4th entrance is connected with can be to the 4th entrance
The 3rd pump housing 11 of water is discharged, the water side of the 3rd pump housing 11 is connected with the 4th entrance, and the water intake end of the 3rd pump housing 11 is connected with
Water inlet pipe, the 4th outlet is connected with outlet pipe, and above-mentioned 3rd pump housing 11, water inlet pipe, outlet pipe and lithium bromide unit 7 may make up the
Two chilled(cooling) water return (CWR)s：After cooling water exchanges heat through the heat-exchanger rig of liquefied natural gas plant stand, it is input into the 3rd pump housing 11 by water inlet pipe,
And then exported to the 4th entrance through the 3rd pump housing 11, and then be input into lithium bromide unit 7 through the 4th entrance and cooled down, Jin Erjing
4th outlet output, most returns to liquefied natural gas plant stand through outlet pipe afterwards, is cooled down with to each fluid media (medium).
In order to more fully understand the technical solution of the utility model, as shown in figure 1, the utility model liquefied natural gas plant stand
Distributed energy using system operation principle it is as follows：
The jacket water of gas internal-combustion engine 1 is delivered to lithium bromide unit 7 by first pump housing 8, and the jacket water after heat exchange is by cylinder
Set water loop is delivered to gas internal-combustion engine 1；
The high-temperature flue gas that gas internal-combustion engine 1 is produced are delivered to heat exchanger 5, so that flue gas is delivered into bromination after heating conduction oil
Lithium unit 7 is cooled down, and the flue gas of the discharge of lithium bromide unit 7 is emitted into air through air-introduced machine 6；
Natural gas is delivered to gas internal-combustion engine 1, the clutch end and generator of gas internal-combustion engine 1 by natural gas line
2 connections, generator 2 converts kinetic energy into electric energy, and by electrical energy transportation to power network；
When depickling gas system and the reduction of dewatering system thermic load, can be by the flue branch road of gas internal-combustion engine 1 by combustion gas
The high-temperature flue gas that combustion engine 1 is produced are delivered to lithium bromide unit 7；
The cooling water of cooling unit 9 is delivered to lithium bromide unit 7 by second pump housing 10, and the cooling water after heat exchange is by first
Chilled(cooling) water return (CWR) is delivered to cooling unit 9；
The cooling water that lithium bromide unit 7 is produced is delivered to liquefied natural gas plant stand process unit by the second chilled(cooling) water return (CWR)
Each heat-exchanger rig in area, the cooling water after each heat exchanger heat exchange in process unit area is delivered to lithium bromide by the second chilled(cooling) water return (CWR)
Unit 7.
Claims (5)
1. a kind of distributed energy of liquefied natural gas plant stand utilizes system, it is characterised in that：Combustion including incendivity natural gas
Gas internal combustion engine (1), gas internal-combustion engine (1) includes gas inlet, can discharge the jacket water of gas internal-combustion engine cylinder sleeve inner cylinder liner water
Outlet, can be input into the cylinder sleeve water inlet of jacket water to gas internal-combustion engine cylinder sleeve, can discharge the exhaust opening of flue gas, and internal combustion engine moving
Power output end, gas inlet is connected with natural gas line；
Cylinder sleeve water out is connected with first pump housing (8) that jacket water can be exported from cylinder sleeve water out, the draining of first pump housing (8)
End is connected with the lithium bromide unit (7) equipped with lithium bromide refrigerating agent, and lithium bromide unit (7) is provided with first entrance and first goes out
Mouthful, first entrance is connected with the discharge ends of first pump housing (8), and first outlet is connected with cylinder sleeve water inlet；
The exhaust opening of gas internal-combustion engine (1) is connected with the heat exchanger (5) that can transmit the heat of flue gas to conduction oil, heat exchanger (5)
Heat exchanger entrance and heat exchanger exit are provided with, heat exchanger entrance is connected with exhaust opening, heat exchanger exit and lithium bromide unit (7)
Connection, lithium bromide unit (7) is provided with second entrance and second outlet, and second entrance is connected with heat exchanger exit, second outlet
It is connected with air-introduced machine (6), the outlet air end and atmosphere of air-introduced machine (6)；
The clutch end of gas internal-combustion engine (1) is connected with generator (2), and the power output end of generator (2) is connected to power network.
2. the distributed energy of liquefied natural gas plant stand according to claim 1 utilizes system, it is characterised in that：Heat exchanger
(5) it is connected with adjustable the first valve body (3) for entering heat exchanger entrance flue gas flow.
3. the distributed energy of liquefied natural gas plant stand according to claim 1 utilizes system, it is characterised in that：In combustion gas
The second valve body (4), the inlet end and gas internal-combustion engine of the second valve body (4) are provided between combustion engine (1) and lithium bromide unit (7)
(1) exhaust opening connection, the outlet side of the second valve body (4) is connected with the second entrance of lithium bromide unit (7).
4. the distributed energy of the liquefied natural gas plant stand according to any one of claim 1-3 utilizes system, its feature
It is：Lithium bromide unit (7) is connected with and is connected with water and can be by the cooling unit (9) of water cooling, and lithium bromide unit (7) is provided with
Three outlets and the 3rd entrance, the 3rd outlet are connected with cooling unit (9), and cooling unit (9) is provided with cooling unit entrance and cold
But unit outlet, cooling unit entrance is connected with the 3rd outlet, and cooling unit outlet is connected with the 3rd entrance, cooling unit (9)
Being connected with can be input into the cooling water in cooling unit (9) to second pump housing (10) of lithium bromide unit (7).
5. the distributed energy of liquefied natural gas plant stand according to claim 1 utilizes system, it is characterised in that：Lithium bromide
Unit (7) is provided with the 4th entrance and the 4th outlet, and the 4th entrance is connected with the 3rd pump housing that water can be discharged to the 4th entrance
(11), the water side of the 3rd pump housing (11) is connected with the 4th entrance, and the water intake end of the 3rd pump housing (11) is connected with water inlet pipe, the 4th
Outlet is connected with outlet pipe.
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| CN201621362708.2U CN206237147U (en) | 2016-12-13 | 2016-12-13 | The distributed energy of liquefied natural gas plant stand utilizes system |
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| CN201621362708.2U CN206237147U (en) | 2016-12-13 | 2016-12-13 | The distributed energy of liquefied natural gas plant stand utilizes system |
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