CN109484129A - The energy recovery utilizing system of the gas-electricity power combined bus of LNG - Google Patents
The energy recovery utilizing system of the gas-electricity power combined bus of LNG Download PDFInfo
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- CN109484129A CN109484129A CN201811424773.7A CN201811424773A CN109484129A CN 109484129 A CN109484129 A CN 109484129A CN 201811424773 A CN201811424773 A CN 201811424773A CN 109484129 A CN109484129 A CN 109484129A
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- waste heat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00371—Air-conditioning arrangements specially adapted for particular vehicles for vehicles carrying large numbers of passengers, e.g. buses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
Abstract
The present invention provides a kind of cold and hot energy comprehensive reutilization systems of the gas-electricity power combined bus of LNG, belong to technical field of energy utilization.It solves the problems, such as that prior art energy regenerating utilization rate is low.This system includes waste heat driven refrigeration module, cold energy cooling supply module, temperature-difference power generation module and residual heat heating module, above-mentioned waste heat driven refrigeration module utilizes engine and waste heat from tail gas, compartment cooling supply is realized by lithium bromide water absorption refrigerating plant, the collectable LNG gasification cooling capacity of above-mentioned cold energy auxiliary cooling supply module realizes that compartment assists cooling supply, above-mentioned temperature-difference power generation module is generated electricity by waste heat and the driving of LNG cooling capacity, and waste heat can directly be delivered at air-conditioning system and realize compartment heating by above-mentioned residual heat heating module.Four module heights are integrated into public transport vehicle-mounted system, it can be achieved that based on summer residual heat refrigeration, the comprehensive energy Land use systems based on winter residual heat heating, based on spring and autumn thermo-electric generation significantly improve the energy utilization rate of vehicle-mounted natural gas system for synthetic operation.
Description
Technical field
The invention belongs to energy recovery technical field, the energy synthesis for being related to a kind of gas-electricity power combined bus of LNG is returned
Receive the system of utilizing.
Background
Using liquefied natural gas (LNG) as the bus of fuel have clean and environmental protection, economical and practical, mileage travelled it is remote,
The series of advantages such as maintenance cost is low, in public transport field by favor.But generally speaking, existing vehicle-mounted natural gas energy benefit
It is not high with rate, there is biggish exploit potentialities.Gas-electricity power combined technology improves vehicle start and stop low speed to a certain extent
The inefficiency problem of operation, but and do not solve the problem of residual heat resources utilize.Since combustion of natural gas temperature is higher, waste heat has
Considerable utility value, and liquefied natural gas creates good condition as low temperature cold source for the comprehensive high-efficiency utilization of cold and hot energy.
Summary of the invention
The first purpose of this invention is in view of the above-mentioned problems existing in the prior art, it is high and can mention to provide a kind of integrated level
The energy recovery utilizing system of the gas-electricity power combined bus of the LNG of high energy source utilization rate.
A second object of the present invention is to provide the operating schemes of above system.
The first purpose of this invention can be realized by the following technical scheme:
A kind of energy recovery utilizing system of the gas-electricity power combined bus of LNG, is arranged in the car body of LNG power bus
On, there is LNG storage tank and air-conditioning device, which is characterized in that this system includes waste heat driven refrigeration module, cold energy confession on car body
Cold module, temperature-difference power generation module and residual heat heating module, above-mentioned waste heat driven refrigeration module can be by engine and exhaust emissions
Locate waste heat driving, cold air can be delivered at air-conditioning device by the waste heat driven refrigeration module after being driven, above-mentioned cold energy cooling supply
Low temperature at LNG storage tank can be delivered at air-conditioning device by module, above-mentioned temperature-difference power generation module can according to waste heat and LNG cooling capacity it
Between the cold and hot temperature difference generate electricity, waste heat at engine and tail gas can be delivered at air-conditioning device by above-mentioned residual heat heating module,
Above-mentioned waste heat driven refrigeration module is connected with cold energy cooling supply module and the two forms an independent module, above-mentioned residual heat heating module
With temperature-difference power generation module and independent module.
Also have in the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, on the car body super
Grade capacitor and battery group, battery temperature-difference power generation module are connected with super capacitor and battery respectively through booster, above-mentioned super
Grade capacitor is for driving car body to travel, and above-mentioned battery is for driving car lighting.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, this system further includes being connected to
The intracorporal temperature sensor of vehicle, above-mentioned temperature sensor pass through controller and above-mentioned waste heat driven refrigeration module, cold energy cooling supply
Module, temperature-difference power generation module are connected with residual heat heating module, the controller when reaching relatively low set temperature value in car body
Open residual heat heating module, when reaching relatively high set temperature value in car body controller open waste heat driven refrigeration module and
Cold energy cooling supply module, when reaching more moderate set temperature value in car body, controller opens temperature-difference power generation module.
The intracorporal temperature sensor of vehicle can detecte its environment temperature, to select corresponding operation side according to environment temperature
Case, specifically.
When temperature is relatively low, residual heat heating module is opened, i.e. winter scheme.
Firstly, the preferential outlet LNG that is oriented to is for preheating LNG after residual heat collection, secondly, starting residual heat heating equipment, most
Afterwards, when temperature sensor detects that residual temperature is eligible, start temperature-difference power generation module.
When temperature is relatively high, waste heat driven refrigeration module, cold energy cooling supply module are opened, i.e. summer scheme.
Firstly, starting auxiliary cooling equipment, LNG cold energy preferentially assist cooling supply, secondly, starting waste heat driven refrigeration module,
As the refrigeration main force, finally, starting temperature-difference power generation module when temperature sensor detects that residual temperature is eligible.
When temperature is more moderate, temperature-difference power generation module is opened, i.e. spring and autumn scheme.
Operating scheme is independently judged according to vehicle interior temperature, and when vehicle interior temperature is lower than preset temperature a, system is transported by winter scheme
Row, when being higher than preset temperature b, system is run by summer scheme.Thermo-electric generation mould is activated individually between a and b in temperature
Block.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, the residual heat heating module packet
Engine exhaust heat heating plant and waste heat from tail gas heating plant are included, above-mentioned engine exhaust heat heating plant is connected at engine,
Above-mentioned waste heat from tail gas heating plant is connected at the exhaust pipe of car body.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, the engine exhaust heat is adopted
Heater device and waste heat from tail gas heating plant are heat pipe waste-heat recoverer.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, the waste heat driven refrigeration mould
Block is lithium bromide water absorption refrigerating plant, the lithium bromide water absorption refrigerating plant include cooling water tank and condenser, evaporator,
Generator and absorber, above-mentioned cooling water tank are connected in car body top, and above-mentioned condenser, evaporator, generator and absorber are solid
It is connected at the engine room of car body, is integral type chamber design.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, the quantity of the refrigeration water tank
It is two.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, the cold energy cooling supply module position
At LNG storage tank, the temperature-difference power generation module is mounted between LNG storage tank and the engine of car body, and the waste heat supplies
Heating module is located at the engine and exhaust emissions of car body.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, the engine and tail gas row
The place of putting is all made of heat pipe waste-heat recoverer.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, the temperature-difference power generation module
For flaky thermoelectric generation film.
Lithium bromide water absorption refrigerating plant is hot-water type single-action unit, and integral type chamber design, main material is using 304 stainless
Steel, can satisfy sealing, anticorrosion requirement, and the corrosion inhibiter of device operation uses lithium chromate (Li2CrO4) or lithium molybdate
(LiMoO4).Temperature-difference power generation module is stacked plate thermo-electric generation plate, compact-sized, and space utilization rate is high, and weight meets vehicle
Carry lightweight demand.
In the energy recovery utilizing system of the above-mentioned gas-electricity power combined bus of LNG, the temperature-difference power generation module
It is mounted between LNG storage tank and the engine of car body.
Temperature is relatively low at LNG storage tank, and temperature is relatively high at car body engine, and temperature-difference power generation module is arranged in the position
The stable carry out thermo-electric generation of energy.
Second object of the present invention can be realized by the following technical scheme:
A kind of workflow of the energy recovery utilizing system of the gas-electricity power combined bus of LNG, which is characterized in that system
Can independently it be judged according to external environment, the different both season schemes of operation, to realize based on winter residual heat heating, summer residual heat
Based on driving refrigeration and cooling capacity supplying cold directly, the comprehensive energy Land use systems based on spring thermo-electric generation.Carrying out practically scheme is such as
Under:
When the temperature that temperature sensor detects is relatively high, waste heat driven refrigeration module, cold energy cooling supply module are opened, i.e.,
Summer scheme: firstly, the preferential cooling supply of cold energy cooling supply module, secondly, starting waste heat driven refrigeration module, as the refrigeration main force, most
Afterwards, when temperature sensor detects that residual temperature is eligible, start temperature-difference power generation module；
When the temperature that temperature sensor detects is relatively low, residual heat heating module is opened, i.e. winter scheme: firstly, waste heat
After collection, the preferential LNG storage tank outlet that is oriented to is for preheating LNG, secondly, waste heat feeds to air-conditioning device, finally, working as temperature sensing
When device detects that residual temperature is eligible, start temperature-difference power generation module；
When temperature is more moderate, temperature-difference power generation module is opened, i.e. spring and autumn scheme: when vehicle interior temperature is lower than preset temperature a,
System is run by winter scheme, and when being higher than preset temperature b, system is run by summer scheme.Temperature is between a and b, individually
Start temperature-difference power generation module.
Compared with prior art, waste heat is driven and is made by the energy recovery utilizing system of the gas-electricity power combined bus of this LNG
Cold module, cold energy cooling supply module, temperature-difference power generation module and residual heat heating module are concentrated on the car body simultaneously, realize summer residual heat
Based on refrigeration, comprehensive energy Land use systems based on winter residual heat heating, based on spring and autumn thermo-electric generation, so that hot and cold can reach
The energy switch process of terminal applies is minimum, to sufficiently realize that waste heat and cold energy resource utilization utilize.
As can be seen that this system is remarkably improved the energy utilization rate of LNG power bus, mileage day is reduced
The consumption and exhaust emissions amount of right gas, have good effects of energy saving and emission reduction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the energy recovery utilizing system of the gas-electricity power combined bus of this LNG.
Fig. 2 is the schematic diagram of the energy recovery utilizing system of the gas-electricity power combined bus of this LNG.
In figure, 1, residual heat heating module；1a, engine exhaust heat heating plant；1b, waste heat from tail gas heating plant；2, waste heat
Drive refrigeration module；2a, cooling water tank；3, cold energy cooling supply module；4, temperature-difference power generation module；5, car body；6, LNG storage tank；7,
Air-conditioning system；8, battery；9, temperature sensor；10, controller；11, engine；12, super capacitor.
Specific embodiment
As depicted in figs. 1 and 2, the energy recovery utilizing system of the gas-electricity power combined bus of this LNG is arranged in LNG power
On the car body 5 of bus, there is LNG storage tank 6 and air-conditioning system 7 on car body 5.
This system includes waste heat driven refrigeration module, cold energy cooling supply module, temperature-difference power generation module and residual heat heating module, on
Stating waste heat driven refrigeration module can be driven by waste heat at engine and exhaust emissions, the waste heat driven refrigeration mould after being driven
Cold air can be delivered at air-conditioning device by block, and low temperature at LNG storage tank can be delivered to air-conditioning device by above-mentioned cold energy cooling supply module
Place, above-mentioned temperature-difference power generation module can generate electricity according to the cold and hot temperature difference between waste heat and LNG cooling capacity, above-mentioned residual heat heating module
Waste heat at engine and tail gas can be delivered at air-conditioning device, above-mentioned waste heat driven refrigeration module is connected with cold energy cooling supply module
And the two forms an independent module, above-mentioned residual heat heating module and temperature-difference power generation module are also independent module.
On the car body also have super capacitor and battery group, battery temperature-difference power generation module through booster respectively with it is super
Capacitor and battery are connected, and above-mentioned super capacitor is for driving car body to travel, and above-mentioned battery is for driving car lighting.
This system further includes being connected to the intracorporal temperature sensor of vehicle, and above-mentioned temperature sensor passes through controller and above-mentioned
Waste heat driven refrigeration module, cold energy cooling supply module, temperature-difference power generation module are connected with residual heat heating module, when reaching ratio in car body
Controller opens residual heat heating module, the control when reaching relatively high set temperature value in car body when lower set temperature value
Device opens waste heat driven refrigeration module and cold energy cooling supply module, the controller when reaching more moderate set temperature value in car body
Open temperature-difference power generation module.
The waste heat driven refrigeration module is lithium bromide water absorption refrigerating plant, the lithium bromide water absorption refrigerating plant packet
Cooling water tank and condenser, evaporator, generator and absorber are included, above-mentioned cooling water tank is connected in car body top, above-mentioned condensation
Device, evaporator, generator and absorber are connected at the engine room of car body, are integral type chamber design.
The cold energy cooling supply module is located at LNG storage tank, and the temperature-difference power generation module is mounted on LNG storage tank and vehicle
Between the engine of body, the residual heat heating module is located at the engine and exhaust emissions of car body.
The engine exhaust heat heating plant 1a and waste heat from tail gas heating plant 1b is heat pipe waste-heat recoverer.
The waste heat driven refrigeration module 2 is lithium bromide water absorption refrigerating plant.
The quantity of the refrigeration water tank is two.
The temperature-difference power generation module 4 is flaky thermoelectric generation film.
The temperature-difference power generation module 4 is mounted between LNG storage tank 6 and the engine 11 of car body 5.
The workflow of the energy recovery utilizing system of the gas-electricity power combined bus of LNG:
This system can independently judge according to external environment, run different both season schemes, to realize that winter waste heat supplies
Based on warm, based on summer residual heat driving refrigeration and cooling capacity supplying cold directly, the comprehensive energy Land use systems based on spring thermo-electric generation.
Carrying out practically scheme is as follows:
When the temperature that temperature sensor detects is relatively high, waste heat driven refrigeration module, cold energy cooling supply module are opened, i.e.,
Summer scheme: firstly, the preferential cooling supply of cold energy cooling supply module, secondly, starting waste heat driven refrigeration module, as the refrigeration main force, most
Afterwards, when temperature sensor detects that residual temperature is eligible, start temperature-difference power generation module；
When the temperature that temperature sensor detects is relatively low, residual heat heating module is opened, i.e. winter scheme: firstly, waste heat
After collection, the preferential LNG storage tank outlet that is oriented to is for preheating LNG, secondly, waste heat feeds to air-conditioning device, finally, working as temperature sensing
When device detects that residual temperature is eligible, start temperature-difference power generation module；
When temperature is more moderate, temperature-difference power generation module is opened, i.e. spring and autumn scheme: when vehicle interior temperature is lower than preset temperature a,
System is run by winter scheme, and when being higher than preset temperature b, system is run by summer scheme.Temperature is between a and b, individually
Start temperature-difference power generation module.
Claims (9)
1. a kind of energy recovery utilizing system of the gas-electricity power combined bus of LNG, is arranged in the car body of LNG power bus
On, there is LNG storage tank and air-conditioning device, which is characterized in that this system includes waste heat driven refrigeration module, cold energy confession on car body
Cold module, temperature-difference power generation module and residual heat heating module, above-mentioned waste heat driven refrigeration module can be by engine and exhaust emissions
Locate waste heat driving, cold air can be delivered at air-conditioning device by the waste heat driven refrigeration module after being driven, above-mentioned cold energy cooling supply
Low temperature at LNG storage tank can be delivered at air-conditioning device by module, above-mentioned temperature-difference power generation module can according to waste heat and LNG cooling capacity it
Between the cold and hot temperature difference generate electricity, waste heat at engine and tail gas can be delivered at air-conditioning device by above-mentioned residual heat heating module,
Above-mentioned waste heat driven refrigeration module is connected with cold energy cooling supply module and the two forms an independent module, above-mentioned residual heat heating module
With temperature-difference power generation module and independent module.
2. the energy recovery utilizing system of the gas-electricity power combined bus of LNG according to claim 1, which is characterized in that
On the car body also have super capacitor and battery group, battery temperature-difference power generation module through booster respectively with super capacitor and storage
Battery is connected, and above-mentioned super capacitor is for driving car body to travel, and above-mentioned battery is for driving car lighting.
3. the energy recovery utilizing system of the gas-electricity power combined bus of LNG according to claim 1, which is characterized in that
This system further includes being connected to the intracorporal temperature sensor of vehicle, and above-mentioned temperature sensor is driven by controller and above-mentioned waste heat
Refrigeration module, cold energy cooling supply module, temperature-difference power generation module are connected with residual heat heating module, set when reaching relatively low in car body
Determine controller when temperature value and open residual heat heating module, when reaching relatively high set temperature value in car body more than controller unlatching
Thermal drivers refrigeration module and cold energy cooling supply module, when reaching more moderate set temperature value in car body, controller opens the temperature difference
Electricity generation module.
4. the energy recovery utilizing system of the gas-electricity power combined bus of LNG according to claim 1, which is characterized in that
The waste heat driven refrigeration module is lithium bromide water absorption refrigerating plant, and the lithium bromide water absorption refrigerating plant includes cooling water
Case and condenser, evaporator, generator and absorber, above-mentioned cooling water tank are connected in car body top, above-mentioned condenser, evaporation
Device, generator and absorber are connected at the engine room of car body, are integral type chamber design.
5. the energy recovery utilizing system of the gas-electricity power combined bus of LNG according to claim 4, which is characterized in that
The quantity of the refrigeration water tank is two.
6. the energy recovery utilizing system of the gas-electricity power combined bus of LNG according to claim 1, which is characterized in that
The cold energy cooling supply module is located at LNG storage tank, and the temperature-difference power generation module is mounted on starting for LNG storage tank and car body
Between machine, the residual heat heating module is located at the engine and exhaust emissions of car body.
7. the energy recovery utilizing system of the gas-electricity power combined bus of LNG according to claim 6, which is characterized in that
Heat pipe waste-heat recoverer is all made of at the engine and exhaust emissions.
8. the energy recovery utilizing system of the gas-electricity power combined bus of LNG according to claim 1, which is characterized in that
The temperature-difference power generation module is flaky thermoelectric generation film.
9. a kind of workflow of the energy recovery utilizing system of the gas-electricity power combined bus of LNG, which is characterized in that system energy
Enough independently to be judged according to external environment, the different both season schemes of operation, to realize based on winter residual heat heating, summer residual heat is driven
Based on dynamic refrigeration and cooling capacity supplying cold directly, the comprehensive energy Land use systems based on spring thermo-electric generation.Carrying out practically scheme is as follows:
When the temperature that temperature sensor detects is relatively high, waste heat driven refrigeration module, cold energy cooling supply module are opened, i.e. summer
Scheme: firstly, the preferential cooling supply of cold energy cooling supply module, secondly, starting waste heat driven refrigeration module, as the refrigeration main force, finally, warm
When degree sensor detects that residual temperature is eligible, start temperature-difference power generation module；
When the temperature that temperature sensor detects is relatively low, residual heat heating module is opened, i.e. winter scheme: firstly, residual heat collection
Afterwards, preferentially the outlet of guiding LNG storage tank is for preheating LNG, secondly, waste heat feeds to air-conditioning device, finally, when temperature sensor is examined
Measure residual temperature it is eligible when, start temperature-difference power generation module；
When temperature is more moderate, temperature-difference power generation module is opened, i.e. spring and autumn scheme: when vehicle interior temperature is lower than preset temperature a, system
It is run by winter scheme, when being higher than preset temperature b, system is run by summer scheme.Temperature is activated individually between a and b
Temperature-difference power generation module.
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| CN201811424773.7A CN109484129A (en) | 2018-11-27 | 2018-11-27 | The energy recovery utilizing system of the gas-electricity power combined bus of LNG |
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| CN107599788A (en) * | 2017-08-03 | 2018-01-19 | 丹阳市利旺车辆部件有限公司 | A kind of double flow LNG low-temperature receivers utilize device |
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| CN1165098A (en) * | 1997-02-18 | 1997-11-19 | 奉政一 | Refrigeration air conditioner without compressor for can (ship) use and allocation method |
| GB2383839A (en) * | 2002-01-04 | 2003-07-09 | Neville Tubb | A liquified gaseous fuel powered vehicle and air conditioner. |
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