CN203396176U - LNG (liquefied natural gas) energy comprehensive utilization system - Google Patents
LNG (liquefied natural gas) energy comprehensive utilization system Download PDFInfo
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- CN203396176U CN203396176U CN201320419854.4U CN201320419854U CN203396176U CN 203396176 U CN203396176 U CN 203396176U CN 201320419854 U CN201320419854 U CN 201320419854U CN 203396176 U CN203396176 U CN 203396176U
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Abstract
The utility model provides an LNG (liquefied natural gas) energy comprehensive utilization system. The LNG energy comprehensive utilization system comprises a cooling recycling system, a distributed energy system, an ice storage air conditioning system, a water collector, a water segregator and air-conditioner end equipment, wherein the cooling recycling system and the ice storage air conditioning system are connected with an ice storage device through cooling recycling equipment; the distributed energy system is connected with the cooling recycling system; and the ice storage air conditioning system and the distributed energy system are connected with the water segregator through the water collector. According to the LNG energy comprehensive utilization system, a high-efficient LNG energy comprehensive utilization system is formed through the organic combination among LNG gasification and cooling recycling equipment, natural gas generation and waste heat recovery equipment, the ice storage device and air-conditioner equipment, so that energy cascade utilization and comprehensive utilization are realized. The LNG energy comprehensive utilization system takes LNG as source; the final discharge is a little low-temperature flue gas; the carbon emission is greatly reduced; the heat emission is greatly reduced; the energy comprehensive utilization efficiency is greatly improved.
Description
Technical field
The utility model relates to cold recovery, distributed energy, ice-storage air-conditioning system, relates in particular to LNG energy comprehensive utilization system.
Background technology
LNG is the cryogenic liquid mixture of-162 ℃, during LNG gasification per ton, can produce about 230kWh cold energy, rationally utilizes this part cold energy can produce considerable economic benefit.The application that the natural gas of take is set up distributed energy station as the energy and generating is provided, freezes, heat is more and more, but because electricity needs, refrigeration demand and the asynchronism that heats demand cause the efficiency of energy utilization at distributed energy station to be restricted.In addition, conventional ice-storage air-conditioning system is to utilize night low-price electricity to carry out ice-reserving, power consumption when ice-melt cooling reduces load peak during air conditioner load on daytime peak, and the power consumption of ice-storage system does not reduce on the contrary and increases.Also do not integrate at present the energy comprehensive utilization system of cold energy recovery, distributed energy supply and ice storage air conditioner.
When LNG cold energy is used for air-conditioning cooling, asynchronous due on LNG gasification and cooling load of air-condition life period and space, when utilizing LNG gasification cold energy as cold source of air conditioning, can to cold energy, store by ice storage air conditioner mode, thereby improve cold energy service efficiency.The natural gas that LNG gasification produces can be used for distributing-supplying-energy system, meets user's hot and cold, electric demand, realizes energy cascade utilization.LNG cold energy and distributed energy cooling can be realized combination by ice storage air conditioner, by the group net operation of air-conditioning system, are realized and being complemented each other with standby.
Utility model content
In order to solve the problems of the prior art, the utility model provides a kind of LNG energy comprehensive utilization system.
The utility model provides a kind of LNG energy comprehensive utilization system, comprise cold recovery system, distributed energy resource system, ice-storage air-conditioning system, water collector, water knockout drum, air conditioner end equipment, described cold recovery system comprises LNG storage tank, LNG pump, cold reclaimer, gasifier, described LNG storage tank is connected with described LNG pump intake end, described LNG pump discharge end is connected with described cold reclaimer arrival end, and the described cold reclaimer port of export is connected with described gasifier arrival end; Described distributed energy resource system comprises gas turbine, lithium bromide refrigerator, described gas turbine is communicated with the described gasifier port of export, natural gas burns and generates electricity in described gas turbine, described gas turbine is connected with described lithium bromide refrigerator, the high-temperature flue gas that described gas turbine combustion produces enters described lithium bromide refrigerator, and described lithium bromide refrigerator is reduced to described air conditioner end equipment by kind of refrigeration cycle by Air-conditioning Cycle coolant-temperature gage air conditioning water is provided; Described ice-storage air-conditioning system comprises ice storage unit, heat exchanger, described ice storage unit is connected with described cold reclaimer with the 8th connecting pipe by the 7th connecting pipe, and described ice storage unit is connected with described heat exchanger with the tenth connecting pipe by the 9th connecting pipe; Described distributed energy resource system is connected with described water collector and described water knockout drum respectively, and described ice-storage air-conditioning system is connected with described water collector and described water knockout drum respectively, and described air conditioner end equipment is connected with described water collector and described water knockout drum respectively.
As further improvement of the utility model, described distributed energy resource system also comprises domestic hot-water's water supply line, domestic hot-water's water return pipeline, smoke discharge tube road, described lithium bromide refrigerator has heat-production functions, and described lithium bromide refrigerator is connected with described domestic hot-water's water supply line, described domestic hot-water's water return pipeline, described smoke discharge tube road respectively.
As further improvement of the utility model, described ice storage unit comprises the first Ice Storage Tank, the second Ice Storage Tank, the 11 connecting pipe, the 12 connecting pipe, the 13 connecting pipe, the 14 connecting pipe, the 15 connecting pipe, the 16 connecting pipe, the 17 connecting pipe, the 18 connecting pipe, the first motor-driven valve, the second motor-driven valve, the 3rd motor-driven valve, the 4th motor-driven valve, the 5th motor-driven valve, the 6th motor-driven valve, the 7th motor-driven valve, the 8th motor-driven valve, described the 11 connecting pipe one end is communicated with described the second Ice Storage Tank, described the 11 connecting pipe other end is communicated with described the 7th connecting pipe, described the 3rd motor-driven valve is arranged in described the 11 connecting pipe, described the 12 connecting pipe one end is communicated with described the first Ice Storage Tank, described the 12 connecting pipe other end is communicated with described the 9th connecting pipe one end, described the 9th connecting pipe other end is communicated with described heat exchanger, and described the 4th motor-driven valve is arranged in described the 12 connecting pipe, described the 13 connecting pipe one end is communicated with described the 7th connecting pipe, and described the 13 connecting pipe other end is communicated with described the first Ice Storage Tank, and described the first motor-driven valve is arranged in described the 13 connecting pipe, described the 14 connecting pipe one end is communicated with described the 9th connecting pipe, and described the 14 connecting pipe other end is communicated with described the second Ice Storage Tank, and described the second motor-driven valve is arranged in described the 14 connecting pipe, described the 15 connecting pipe one end is communicated with described the second Ice Storage Tank, and described the 15 connecting pipe other end is communicated with described the 8th connecting pipe, and described the 7th motor-driven valve is arranged in described the 15 connecting pipe, described the 16 connecting pipe one end is communicated with described the first Ice Storage Tank, described the 16 connecting pipe other end is communicated with described the tenth connecting pipe one end, described the tenth connecting pipe other end is communicated with described heat exchanger, and described the 8th motor-driven valve is arranged in described the 16 connecting pipe, described the 17 connecting pipe one end is communicated with described the 8th connecting pipe, and described the 17 connecting pipe other end is communicated with described the first Ice Storage Tank, and described the 6th motor-driven valve is arranged in described the 17 connecting pipe, described the 18 connecting pipe one end is communicated with described the tenth connecting pipe, and described the 18 connecting pipe other end is communicated with described the second Ice Storage Tank, and described the 5th motor-driven valve is arranged in described the 18 connecting pipe.
As further improvement of the utility model, described lithium bromide refrigerator is communicated with by the first connecting pipe with described water collector, and described the first connecting pipe is for inputing to described lithium bromide refrigerator by the air-conditioner circulating water in described water collector; Described lithium bromide refrigerator is for formation air conditioning water that air-conditioner circulating water is cooled, described lithium bromide refrigerator is connected by the second connecting pipe with described water knockout drum, and described the second connecting pipe is for inputing to described water knockout drum by the cooled air conditioning water of described lithium bromide refrigerator.
As further improvement of the utility model, described heat exchanger is communicated with described water knockout drum by the 5th connecting pipe, and described the 5th connecting pipe is for inputing to described water knockout drum by the air conditioning water in described heat exchanger; Described heat exchanger is communicated with described water collector by the 6th connecting pipe, and described the 6th connecting pipe is for inputing to described heat exchanger by the air-conditioner circulating water in described water collector; Ethylene glycol solution in described heat exchanger by described the tenth connecting pipe be delivered in described the first Ice Storage Tank or the second Ice Storage Tank with described the first Ice Storage Tank or the second Ice Storage Tank in phase change medium heat exchange, the ethylene glycol solution in described the first Ice Storage Tank or the second Ice Storage Tank is entered and in described heat exchanger, is formed circulation by described the 9th connecting pipe.
As further improvement of the utility model, described water knockout drum is connected by the 3rd connecting pipe with described air conditioner end equipment, described the 3rd connecting pipe is for inputing to described air conditioner end equipment by the air conditioning water in water knockout drum, described air conditioner end equipment is used for discharging cold makes the rising of air-condition freezing coolant-temperature gage form air-conditioner circulating water, described air conditioner end equipment is connected by the 4th connecting pipe with described water collector, and described the 4th connecting pipe is for inputing to described water collector by the air-conditioner circulating water in described air conditioner end equipment.
As further improvement of the utility model, described the second connecting pipe is provided with valve, and described the 3rd connecting pipe is provided with valve, and described the 5th connecting pipe is provided with valve; Described the first connecting pipe is provided with valve, and described the 4th connecting pipe is provided with valve, and described the 6th connecting pipe is provided with valve.
As further improvement of the utility model, described the 7th connecting pipe is provided with valve, and described the 8th connecting pipe is provided with valve, and described the 9th connecting pipe is provided with valve, and described the tenth connecting pipe is provided with valve.
As further improvement of the utility model, described ice-storage air-conditioning system also comprises main frame, and described main frame two ends are connected with described the tenth connecting pipe with described the 9th connecting pipe respectively, and described main frame is provided with valve with the pipeline that described the 9th connecting pipe is communicated with.
The beneficial effects of the utility model are: LNG energy comprehensive utilization system of the present utility model has following advantage:
1. this LNG energy comprehensive utilization system comprises three using energy source core: LNG gasify cold reclaimer, natural gas power and waste heat recovery apparatus, ice-reserving and air-conditioning equipment, this three using energy source cores acting in conjunction, form an efficient LNG energy comprehensive utilization system, realized cascade utilization and the comprehensive utilization of the energy;
2. this LNG energy comprehensive utilization system first carries out cold recovery when LNG gasifies, and utilizes the cold of cold recovery to carry out ice-reserving, has reduced the loss of refrigeration capacity in LNG gasification;
3. the natural gas that this LNG energy comprehensive utilization system utilizes LNG gasification to produce generates electricity, and reclaims the high-temperature flue gas heat that generating produces, and utilizes lithium bromide refrigerator to freeze, and for air-conditioning system provides chilled water, also can prepare domestic hot-water and heating;
4. the remaining cigarette that lithium bromide refrigerator and generator are drained can also be prepared domestic hot-water by UTILIZATION OF VESIDUAL HEAT IN and carry out commercial distribution, creates economic benefit, reduces hot water user's carbon emission on a small scale;
5. the cold that in this LNG energy comprehensive utilization system, ice-storage air-conditioning system stores derives from the cold in LNG gasification, there is no extra energy resource consumption, not discharge;
6. the energy source of this LNG energy comprehensive utilization system and user side, in gas turbine, does not need extra mains supply, has increased substantially generating and power consumption efficiency;
7. this LNG energy comprehensive utilization system has been realized cold energy recycle and heat energy recycle, and primary energy (LNG) is increased substantially to the Transform efficiency of secondary energy sources (electric energy);
8. this LNG energy comprehensive utilization system takes full advantage of phase transformation potential and the heat energy of LNG, can whole electricity needs, refrigeration demand is efficiently provided and heat demand for user, does not rely on utility network and public gas ductwork;
9. this LNG energy comprehensive utilization system YiLNGWei source, final discharge is only a small amount of low-temperature flue gas, and carbon emission amount significantly reduces, and hot type high-volume significantly reduces, and has improved largely comprehensive utilization rate of energy source.
Accompanying drawing explanation
Fig. 1 is LNG energy comprehensive utilization system theory diagram of the present utility model.
Fig. 2 is LNG energy comprehensive utilization system one embodiment theory diagram of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model discloses a kind of LNG energy comprehensive utilization system, comprise cold recovery system, distributed energy resource system, ice-storage air-conditioning system, water collector 201, water knockout drum 202, air conditioner end equipment 203, described cold recovery system comprises LNG storage tank 501, LNG pump 502, cold reclaimer 208, gasifier 209, described LNG storage tank 501 is connected with described LNG pump 502 arrival ends, described LNG pump 502 ports of export are connected with described cold reclaimer 208 arrival ends, and described cold reclaimer 208 ports of export are connected with described gasifier 209 arrival ends; Described distributed energy resource system comprises gas turbine 204, lithium bromide refrigerator 205, described gas turbine 204 is communicated with described gasifier 209 ports of export, natural gas burns and generates electricity in described gas turbine 204, described gas turbine 204 is connected with described lithium bromide refrigerator 205, the high-temperature flue gas that described gas turbine 204 burnings produce enters described lithium bromide refrigerator 205, and described lithium bromide refrigerator 205 is reduced to described air conditioner end equipment 203 by kind of refrigeration cycle by Air-conditioning Cycle coolant-temperature gage air conditioning water is provided; Described ice-storage air-conditioning system comprises ice storage unit, heat exchanger 206, described ice storage unit is connected with described cold reclaimer 208 with the 8th connecting pipe 312 by the 7th connecting pipe 311, and described ice storage unit is connected with described heat exchanger 206 with the tenth connecting pipe 314 by the 9th connecting pipe 313; Described distributed energy resource system is connected with described water collector 201 and described water knockout drum 202 respectively, described ice-storage air-conditioning system is connected with described water collector 201 and described water knockout drum 202 respectively, and described air conditioner end equipment is connected with described water collector 201 and described water knockout drum 202 respectively.
Described distributed energy resource system also comprises domestic hot-water's water supply line 308, domestic hot-water's water return pipeline 309, smoke discharge tube road 310, described lithium bromide refrigerator 205 has heat-production functions, and described lithium bromide refrigerator 205 is connected with described domestic hot-water's water supply line 308, described domestic hot-water's water return pipeline 309, described smoke discharge tube road 310 respectively.
Described ice storage unit comprises the first Ice Storage Tank 210, the second Ice Storage Tank 211, the 11 connecting pipe 315, the 12 connecting pipe 316, the 13 connecting pipe 317, the 14 connecting pipe 318, the 15 connecting pipe 319, the 16 connecting pipe 320, the 17 connecting pipe 321, the 18 connecting pipe 322, the first motor-driven valve V1, the second motor-driven valve V2, the 3rd motor-driven valve V3, the 4th motor-driven valve V4, the 5th motor-driven valve V5, the 6th motor-driven valve V6, the 7th motor-driven valve V7, the 8th motor-driven valve V8, described the 11 connecting pipe 315 one end are communicated with described the second Ice Storage Tank 211, described the 11 connecting pipe 315 other ends are communicated with described the 7th connecting pipe 311, described the 3rd motor-driven valve V3 is arranged in described the 11 connecting pipe 315, described the 12 connecting pipe 316 one end are communicated with described the first Ice Storage Tank 210, described the 12 connecting pipe 316 other ends are communicated with described the 9th connecting pipe 313 one end, described the 9th connecting pipe 313 other ends are communicated with described heat exchanger 206, and described the 4th motor-driven valve V4 is arranged in described the 12 connecting pipe 316, described the 13 connecting pipe 317 one end are communicated with described the 7th connecting pipe 311, and described the 13 connecting pipe 317 other ends are communicated with described the first Ice Storage Tank 210, and described the first motor-driven valve V1 is arranged in described the 13 connecting pipe 317, described the 14 connecting pipe 318 one end are communicated with described the 9th connecting pipe 313, and described the 14 connecting pipe 318 other ends are communicated with described the second Ice Storage Tank 211, and described the second motor-driven valve V2 is arranged in described the 14 connecting pipe 318, described the 15 connecting pipe 319 one end are communicated with described the second Ice Storage Tank 211, and described the 15 connecting pipe 319 other ends are communicated with described the 8th connecting pipe 312, and described the 7th motor-driven valve V7 is arranged in described the 15 connecting pipe 319, described the 16 connecting pipe 320 one end are communicated with described the first Ice Storage Tank 210, described the 16 connecting pipe 320 other ends are communicated with described the tenth connecting pipe 314 one end, described the tenth connecting pipe 314 other ends are communicated with described heat exchanger 206, and described the 8th motor-driven valve V8 is arranged in described the 16 connecting pipe 320, described the 17 connecting pipe 321 one end are communicated with described the 8th connecting pipe 312, and described the 17 connecting pipe 321 other ends are communicated with described the first Ice Storage Tank 210, and described the 6th motor-driven valve V6 is arranged in described the 17 connecting pipe 321, described the 18 connecting pipe 322 one end are communicated with described the tenth connecting pipe 314, and described the 18 connecting pipe 322 other ends are communicated with described the second Ice Storage Tank 211, and described the 5th motor-driven valve V5 is arranged in described the 18 connecting pipe 322.
Described lithium bromide refrigerator 205 is communicated with by the first connecting pipe 301 with described water collector 201, and described the first connecting pipe 301 is for inputing to described lithium bromide refrigerator 205 by the air-conditioner circulating water in described water collector 201; Described lithium bromide refrigerator 205 is for formation air conditioning water that air-conditioner circulating water is cooled, described lithium bromide refrigerator 205 is connected by the second connecting pipe 302 with described water knockout drum 202, and described the second connecting pipe 302 is for inputing to described water knockout drum 202 by the cooled air conditioning water of described lithium bromide refrigerator 205.
Described heat exchanger 206 is communicated with described water knockout drum 202 by the 5th connecting pipe 305, and described the 5th connecting pipe 305 is for inputing to described water knockout drum 202 by the air conditioning water in described heat exchanger 206; Described heat exchanger 206 is communicated with described water collector 201 by the 6th connecting pipe 306, and described the 6th connecting pipe 306 is for inputing to described heat exchanger 206 by the air-conditioner circulating water in described water collector 201; Ethylene glycol solution in described heat exchanger 206 is delivered to the phase change medium heat exchange in described the first Ice Storage Tank 210 or the second Ice Storage Tank 211 and in described the first Ice Storage Tank 210 or the second Ice Storage Tank 211 by described the tenth connecting pipe 314, and the ethylene glycol solution in described the first Ice Storage Tank 210 or the second Ice Storage Tank 211 enters the interior formation of described heat exchanger 206 by described the 9th connecting pipe 313 again and circulates.
Described water knockout drum 202 is connected by the 3rd connecting pipe 303 with described air conditioner end equipment 203, described the 3rd connecting pipe 303 is for inputing to the air conditioning water in water knockout drum 202 described air conditioner end equipment 203, described air conditioner end equipment 203 makes the rising of air-condition freezing coolant-temperature gage form air-conditioner circulating water for discharging cold, described air conditioner end equipment 203 is connected by the 4th connecting pipe 304 with described water collector 201, and described the 4th connecting pipe 304 is for inputing to described water collector 201 by the air-conditioner circulating water in described air conditioner end equipment 203.
Described the second connecting pipe 302 is provided with valve, and described the 3rd connecting pipe 303 is provided with valve, and described the 5th connecting pipe 305 is provided with valve; Described the first connecting pipe 301 is provided with valve, and described the 4th connecting pipe 304 is provided with valve, and described the 6th connecting pipe 306 is provided with valve.
Described the 7th connecting pipe 311 is provided with valve, and described the 8th connecting pipe 312 is provided with valve, and described the 9th connecting pipe 313 is provided with valve, and described the tenth connecting pipe 314 is provided with valve.
Described ice-storage air-conditioning system also comprises main frame 207, and described main frame 207 two ends are connected with described the tenth connecting pipe 314 with described the 9th connecting pipe 313 respectively, and described main frame 207 is provided with valve with the pipeline that described the 9th connecting pipe 313 is communicated with.
When the first Ice Storage Tank 210 ice-reservings, the second Ice Storage Tank 211 let cool, the first motor-driven valve V1 opens, the second motor-driven valve V2 opens, the 3rd motor-driven valve V3 closes, the 4th motor-driven valve V4 closes, the 5th motor-driven valve V5 opens, the 6th motor-driven valve V6 opens, the 7th motor-driven valve V7 closes, the 8th motor-driven valve V8 closes.
When the second Ice Storage Tank 211 ice-reservings, the first Ice Storage Tank 210 let cool, the first motor-driven valve V1 closes, the second motor-driven valve V2 closes, the 3rd motor-driven valve V3 opens, the 4th motor-driven valve V4 opens, the 5th motor-driven valve V5 closes, the 6th motor-driven valve V6 closes, the 7th motor-driven valve V7 opens, the 8th motor-driven valve V8 opens.
Ethylene glycol solution in described heat exchanger 206 exports in described the first Ice Storage Tank 210 or the second Ice Storage Tank 211 and the phase change medium heat exchange in described the first Ice Storage Tank 210 or the second Ice Storage Tank 211 melts the ice, and the ethylene glycol solution that temperature reduces enters the interior formation circulation of heat exchanger 206 again.
As shown in Figure 2, as an embodiment of the present utility model, this LNG energy comprehensive utilization system also comprises natural gas line 307, and described gasifier 209 is communicated with gas distributing system by described natural gas line 307, and described gas turbine 204 is connected with described natural gas line 307.
In LNG energy comprehensive utilization system of the present utility model, LNG must gasification before using as fuel.LNG enters all or part of gasification of cold reclaimer 208 after 502 pressurizations of LNG pump, temperature raises, enter gasifier 209 temperature and be increased to normal temperature, LNG all gasification is natural gas, be divided into two-way, one tunnel enters distributed energy resource system combustion power generation, and another road gas enters gas distributing system and supplies with resident or industrial gas.
It is fuel that distributed energy resource system be take the natural gas that LNG gasification produces, and natural gas is combustion power generation in gas turbine 204, supplies with user power utilization demand.The high-temperature flue gas that burning produces enters lithium bromide refrigerator 205.Lithium bromide refrigerator 205 reclaims the heat of the generating flue gas that produces, and by cold-producing medium refrigerating and air conditioning recirculated water, the Air-conditioning Cycle of 12 ℃ is water-cooled to the air conditioning water of 7 ℃, supplies with air-conditioning system institute chilling requirement.Lithium bromide refrigerator 205 can be prepared domestic hot-water simultaneously.
The chilled water of distributed energy resource system and the chilled water of ice storage air conditioner and converge at water collector 201 and water knockout drum 202 places of air-conditioning system, Personalized air conditioning end-equipment 203 can be air conditioning terminal user cooling simultaneously.Ice-storage air-conditioning system and distributed energy resource system cooling are realized air-conditioning system group net operation.
Ice-storage air-conditioning system reclaims LNG cold energy by cold reclaimer 208, and is stored in the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211.The ethylene glycol solution of ice-storage air-conditioning system and LNG heat exchange in cold reclaimer 208, ethylene glycol solution obtains cold, temperature reduces, then enters in the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211, in the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211, discharges cold.Phase change medium in the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211 (phase transition temperature is 0 ℃) undergoes phase transition, and cold is stored.
During ice storage air conditioner cooling, the ethylene glycol solution of 3.5 ℃ that the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211 provide and air-conditioner circulating water heat exchange in heat exchanger 206 of 12 ℃ of left and right, after heat exchange, Air-conditioning Cycle coolant-temperature gage is reduced to 7 ℃ by 12 ℃, enters air conditioner end equipment 203.Ethylene glycol solution in heat exchanger 206 after heat exchange temperature be increased to 10 ℃, get back to the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211, with the phase change medium heat exchange in the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211, phase change medium melts gradually emits cold, ethylene glycol solution temperature is down to 3.5 ℃, enter again heat exchanger 206, form circulation.
Ice storage system and lithium bromide refrigerator 205 as two independent cooling sources simultaneously for user provides air conditioner refrigerating, at water knockout drum 202 and water collector 201, import and export are set respectively, mounted valve on the pipeline of turnover water collector 201 and water knockout drum 202, controls respectively the running status of two cover systems.Independent separately at water collector 201 and front two cover systems of water knockout drum 202, water collector 201 and water knockout drum 202, to terminal temperature difference partial common, complement each other between system with standby.
LNG energy comprehensive utilization system tool has the following advantages:
LNG energy comprehensive utilization system, according to energy demand and the supply characteristic of the recovery of LNG cold energy, distributed energy, ice-storage air-conditioning system, by optimizing and mating, has improved efficiency of energy utilization;
The natural gas that LNG gasification produces is used for generating as the raw material of distributed energy, and the electric power producing can provide electric power for electrically-actuated devices such as the lithium bromide refrigerator 205 in system, main frame 207, air conditioner end equipment 203, pumps;
The domestic hot-water that distributed energy resource system produces can meet user domestic hot-water demand, and unnecessary part can be carried out commercial distribution, can produce economic benefit, also can reduce the high energy consumption that some little users prepare hot water, reduces discharge;
The cold that LNG gasification produces reclaims by cold reclaimer 208, be stored in first Ice Storage Tank 210 and/or the second Ice Storage Tank 211 of ice-storage air-conditioning system the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211 released cold quantities when cold or refrigeration duty is larger in idle call.The cold that the first Ice Storage Tank 210 and the second Ice Storage Tank 211 store can provide conventional air-conditioning refrigeration, and cold air distribution or other places that has low temperature to need also can be provided;
Air conditioner load has fluctuation, stable cold during system operation, lithium bromide refrigerator 205 being provided is as main low-temperature receiver, the part of the cold deficiency that lithium bromide refrigerator 205 provides is supplemented by ice-storage air-conditioning system, because the first Ice Storage Tank 210 and/or the second Ice Storage Tank 211 let cool speed, can regulate, can guarantee flexibly the demand that air conditioner load changes; Having under the situation of extra excess load refrigeration requirement, also can start main frame 207 cooperations, extra cold is being provided.
For large size city synthesis or the Regional Energy center of containing regional area requirement of low temperature (as rink, freezer, pharmaceutical technology factory building etc.), can utilize lithium bromide refrigerator 205 that conventional air-conditioning is provided, with ice-storage air-conditioning system, provide low-temperature air conditioner to meet the energy resource consumption of zones of different in the heart in Regional Energy.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. a LNG energy comprehensive utilization system, it is characterized in that: comprise cold recovery system, distributed energy resource system, ice-storage air-conditioning system, water collector (201), water knockout drum (202), air conditioner end equipment (203), described cold recovery system comprises LNG storage tank (501), LNG pump (502), cold reclaimer (208), gasifier (209), described LNG storage tank (501) is connected with described LNG pump (502) arrival end, described LNG pump (502) port of export is connected with described cold reclaimer (208) arrival end, described cold reclaimer (208) port of export is connected with described gasifier (209) arrival end, described distributed energy resource system comprises gas turbine (204), lithium bromide refrigerator (205), described gas turbine (204) is communicated with described gasifier (209) port of export, natural gas burns and generates electricity in described gas turbine (204), described gas turbine (204) is connected with described lithium bromide refrigerator (205), the high-temperature flue gas that described gas turbine (204) burning produces enters described lithium bromide refrigerator (205), described lithium bromide refrigerator (205) is reduced to described air conditioner end equipment (203) by kind of refrigeration cycle by Air-conditioning Cycle coolant-temperature gage air conditioning water is provided, described ice-storage air-conditioning system comprises ice storage unit, heat exchanger (206), described ice storage unit is connected with described cold reclaimer (208) with the 8th connecting pipe (312) by the 7th connecting pipe (311), and described ice storage unit is connected with described heat exchanger (206) with the tenth connecting pipe (314) by the 9th connecting pipe (313), described distributed energy resource system is connected with described water collector (201) and described water knockout drum (202) respectively, described ice-storage air-conditioning system is connected with described water collector (201) and described water knockout drum (202) respectively, and described air conditioner end equipment is connected with described water collector (201) and described water knockout drum (202) respectively.
2. LNG energy comprehensive utilization system according to claim 1, it is characterized in that: described distributed energy resource system also comprises domestic hot-water's water supply line (308), domestic hot-water's water return pipeline (309), smoke discharge tube road (310), described lithium bromide refrigerator (205) has heat-production functions, and described lithium bromide refrigerator (205) is connected with described domestic hot-water's water supply line (308), described domestic hot-water's water return pipeline (309), described smoke discharge tube road (310) respectively.
3. LNG energy comprehensive utilization system according to claim 2, is characterized in that: described ice storage unit comprises the first Ice Storage Tank (210), the second Ice Storage Tank (211), the 11 connecting pipe (315), the 12 connecting pipe (316), the 13 connecting pipe (317), the 14 connecting pipe (318), the 15 connecting pipe (319), the 16 connecting pipe (320), the 17 connecting pipe (321), the 18 connecting pipe (322), the first motor-driven valve (V1), the second motor-driven valve (V2), the 3rd motor-driven valve (V3), the 4th motor-driven valve (V4), the 5th motor-driven valve (V5), the 6th motor-driven valve (V6), the 7th motor-driven valve (V7), the 8th motor-driven valve (V8), described the 11 connecting pipe (315) one end is communicated with described the second Ice Storage Tank (211), described the 11 connecting pipe (315) other end is communicated with described the 7th connecting pipe (311), and described the 3rd motor-driven valve (V3) is arranged in described the 11 connecting pipe (315), described the 12 connecting pipe (316) one end is communicated with described the first Ice Storage Tank (210), described the 12 connecting pipe (316) other end is communicated with described the 9th connecting pipe (313) one end, described the 9th connecting pipe (313) other end is communicated with described heat exchanger (206), and described the 4th motor-driven valve (V4) is arranged in described the 12 connecting pipe (316), described the 13 connecting pipe (317) one end is communicated with described the 7th connecting pipe (311), described the 13 connecting pipe (317) other end is communicated with described the first Ice Storage Tank (210), and described the first motor-driven valve (V1) is arranged in described the 13 connecting pipe (317), described the 14 connecting pipe (318) one end is communicated with described the 9th connecting pipe (313), described the 14 connecting pipe (318) other end is communicated with described the second Ice Storage Tank (211), and described the second motor-driven valve (V2) is arranged in described the 14 connecting pipe (318), described the 15 connecting pipe (319) one end is communicated with described the second Ice Storage Tank (211), described the 15 connecting pipe (319) other end is communicated with described the 8th connecting pipe (312), and described the 7th motor-driven valve (V7) is arranged in described the 15 connecting pipe (319), described the 16 connecting pipe (320) one end is communicated with described the first Ice Storage Tank (210), described the 16 connecting pipe (320) other end is communicated with described the tenth connecting pipe (314) one end, described the tenth connecting pipe (314) other end is communicated with described heat exchanger (206), and described the 8th motor-driven valve (V8) is arranged in described the 16 connecting pipe (320), described the 17 connecting pipe (321) one end is communicated with described the 8th connecting pipe (312), described the 17 connecting pipe (321) other end is communicated with described the first Ice Storage Tank (210), and described the 6th motor-driven valve (V6) is arranged in described the 17 connecting pipe (321), described the 18 connecting pipe (322) one end is communicated with described the tenth connecting pipe (314), described the 18 connecting pipe (322) other end is communicated with described the second Ice Storage Tank (211), and described the 5th motor-driven valve (V5) is arranged in described the 18 connecting pipe (322).
4. LNG energy comprehensive utilization system according to claim 3, it is characterized in that: described lithium bromide refrigerator (205) is communicated with by the first connecting pipe (301) with described water collector (201), described the first connecting pipe (301) is for inputing to described lithium bromide refrigerator (205) by the air-conditioner circulating water in described water collector (201); Described lithium bromide refrigerator (205) is for formation air conditioning water that air-conditioner circulating water is cooled, described lithium bromide refrigerator (205) is connected by the second connecting pipe (302) with described water knockout drum (202), and described the second connecting pipe (302) is for inputing to described water knockout drum (202) by the cooled air conditioning water of described lithium bromide refrigerator (205).
5. LNG energy comprehensive utilization system according to claim 4, it is characterized in that: described heat exchanger (206) is communicated with described water knockout drum (202) by the 5th connecting pipe (305), described the 5th connecting pipe (305) is for inputing to described water knockout drum (202) by the air conditioning water in described heat exchanger (206); Described heat exchanger (206) is communicated with described water collector (201) by the 6th connecting pipe (306), and described the 6th connecting pipe (306) is for inputing to described heat exchanger (206) by the air-conditioner circulating water in described water collector (201); Ethylene glycol solution in described heat exchanger (206) is delivered to the phase change medium heat exchange in described the first Ice Storage Tank (210) or the second Ice Storage Tank (211) and in described the first Ice Storage Tank (210) or the second Ice Storage Tank (211) by described the tenth connecting pipe (314), and the ethylene glycol solution in described the first Ice Storage Tank (210) or the second Ice Storage Tank (211) is entered in described heat exchanger (206) again and formed and circulate by described the 9th connecting pipe (313).
6. LNG energy comprehensive utilization system according to claim 5, it is characterized in that: described water knockout drum (202) is connected by the 3rd connecting pipe (303) with described air conditioner end equipment (203), described the 3rd connecting pipe (303) is for inputing to described air conditioner end equipment (203) by the air conditioning water in water knockout drum (202), described air conditioner end equipment (203) makes the rising of air-condition freezing coolant-temperature gage form air-conditioner circulating water for discharging cold, described air conditioner end equipment (203) is connected by the 4th connecting pipe (304) with described water collector (201), described the 4th connecting pipe (304) is for inputing to described water collector (201) by the air-conditioner circulating water in described air conditioner end equipment (203).
7. LNG energy comprehensive utilization system according to claim 6, is characterized in that: described the second connecting pipe (302) is provided with valve, and described the 3rd connecting pipe (303) is provided with valve, and described the 5th connecting pipe (305) is provided with valve; Described the first connecting pipe (301) is provided with valve, and described the 4th connecting pipe (304) is provided with valve, and described the 6th connecting pipe (306) is provided with valve.
8. LNG energy comprehensive utilization system according to claim 7, it is characterized in that: described the 7th connecting pipe (311) is provided with valve, described the 8th connecting pipe (312) is provided with valve, described the 9th connecting pipe (313) is provided with valve, and described the tenth connecting pipe (314) is provided with valve.
9. LNG energy comprehensive utilization system according to claim 8, it is characterized in that: described ice-storage air-conditioning system also comprises main frame (207), described main frame (207) two ends are connected with described the tenth connecting pipe (314) with described the 9th connecting pipe (313) respectively, and described main frame (207) is provided with valve with the pipeline that described the 9th connecting pipe (313) is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419854.4U CN203396176U (en) | 2013-07-15 | 2013-07-15 | LNG (liquefied natural gas) energy comprehensive utilization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419854.4U CN203396176U (en) | 2013-07-15 | 2013-07-15 | LNG (liquefied natural gas) energy comprehensive utilization system |
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| CN203396176U true CN203396176U (en) | 2014-01-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335467A (en) * | 2013-07-15 | 2013-10-02 | 深圳市燃气集团股份有限公司 | LNG energy comprehensive utilization system |
| CN103954090A (en) * | 2014-04-10 | 2014-07-30 | 天津城建大学 | Cold-storage refrigeration house system capable of fully utilizing cold energy of liquefied natural gas |
| CN104748280A (en) * | 2015-04-13 | 2015-07-01 | 江苏科技大学 | Refrigerating/heating system of air-conditioner of LNG (Liquefied Natural Gas) power-driven vessel |
-
2013
- 2013-07-15 CN CN201320419854.4U patent/CN203396176U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335467A (en) * | 2013-07-15 | 2013-10-02 | 深圳市燃气集团股份有限公司 | LNG energy comprehensive utilization system |
| CN103954090A (en) * | 2014-04-10 | 2014-07-30 | 天津城建大学 | Cold-storage refrigeration house system capable of fully utilizing cold energy of liquefied natural gas |
| CN103954090B (en) * | 2014-04-10 | 2015-12-16 | 天津城建大学 | A kind of cold-storage refrigeration storage system that can make full use of cold energy of liquefied natural gas |
| CN104748280A (en) * | 2015-04-13 | 2015-07-01 | 江苏科技大学 | Refrigerating/heating system of air-conditioner of LNG (Liquefied Natural Gas) power-driven vessel |
| CN104748280B (en) * | 2015-04-13 | 2017-08-11 | 江苏科技大学 | A kind of LNG Power Vessels air conditioner refrigerating/heating system |
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