CN104859404B - The automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial - Google Patents
The automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial Download PDFInfo
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- CN104859404B CN104859404B CN201510263689.1A CN201510263689A CN104859404B CN 104859404 B CN104859404 B CN 104859404B CN 201510263689 A CN201510263689 A CN 201510263689A CN 104859404 B CN104859404 B CN 104859404B
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- branch road
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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
- B60H1/32—Cooling devices
- B60H1/3202—Cooling devices using evaporation, i.e. not including a compressor, e.g. involving fuel or water evaporation
-
- 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
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
-
- 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
- B60H1/32—Cooling devices
- B60H2001/3286—Constructional features
- B60H2001/3289—Additional cooling source
Abstract
The invention discloses a kind of automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial, including：Braking branch road, including first-class control valve, the first empty bath gasifier for setting gradually；Turn to branch road, including second control valve, the second empty bath gasifier for setting gradually；Supply branch road, including first manual stop valve, water-bath gasifier, pressure maintaining valve, vacuum tank and the engine for setting gradually；Refrigeration branch, including the first pipeline and the second pipeline, the first pipeline include the 3rd flow control valve and heat exchanger that are sequentially connected, and the second pipeline includes the heat exchanger, the second hand stop valve, pump, the evaporator that are sequentially connected；Wherein, the entrance point of braking branch road, steering branch road, supply branch road and the first pipeline is all connected with LNG fluid reservoirs, and the port of export of braking branch road, steering branch road, supply branch road and the first pipeline is all connected with water-bath gasifier.The present invention meets heavy-duty commercial vehicle to radiating and the demand freezed in the case where any extra power consumption is not required to.
Description
Technical field
The invention belongs to cold energy recycle technical field, and in particular to a kind of automobile-used LNG (Liquefied of heavy type commercial
Natural Gas：Liquefied natural gas) cold energy comprehensive reutilization system.
Background technology
Energy-conservation is one of matter of utmost importance of current Automobile Design.For LNG heavy-duty commercial vehicles, LNG cold energy is recovered as carrying
High energy source utilization rate opens new effective way.If the cold energy is reclaimed into radiating and the refrigeration demand for vehicle, with section
Can be with the double meaning of environmental protection.
It is well known that heavy-duty commercial vehicle work under bad environment, steering and brakes are both needed to medium temperature control
In zone of reasonableness, even temperature is too high hard steering can be caused stuck, the reduction of brakes service life；It is many using single at present
Extension pipeline traditional wind-cooling heat dissipating, the mode of this traditional wind-cooling heat dissipating, cause braking, Steering take place frequently, fault rate
It is higher.
Meanwhile, the ride comfort of heavy-duty commercial vehicle increasingly becomes driver's first-selection of gradually rejuvenation, for long-distance postscript
Relate to or hurry back and forth for the heavy-duty commercial vehicle driver in mining area, hot summer can drink the cold drink general that ice is felt well good to eat in car
Can be the thing of part " very cruel ", but car refrigerator is generally semiconductor-type and compressor-type refrigeration at present, and the former refrigeration is not
Good, the latter is expensive, and its use on heavy-duty commercial vehicle is near barren；And the traditional air conditioner refrigerating of heavy-duty commercial vehicle is needed
Engine driving compressor is wanted, fuel consumption is increased about 10%, economy is poor.
Therefore, if in the case where any extra power consumption is not required to, LNG cold energy recycles can be met into heavy-duty commercial vehicle
To the demand for radiating and freeze, it will with considerable economic benefit and social value.
The content of the invention
For above technical problem, the present invention provides a kind of automobile-used LNG cold energy utilization system of heavy type commercial.
The technical solution adopted by the present invention is as follows：
A kind of automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial, including：Braking branch road, including set gradually
First-class control valve, the first empty bath gasifier；Turn to branch road, including second control valve, the second empty bath for setting gradually
Gasifier；Supply branch road, including set gradually first manual stop valve, water-bath gasifier, pressure maintaining valve, vacuum tank and start
Machine；Refrigeration branch, including the first pipeline and the second pipeline, first pipeline include the 3rd flow control valve that is sequentially connected and
Heat exchanger, second pipeline includes the heat exchanger, the second hand stop valve, pump, the evaporator that are sequentially connected；Wherein, institute
The entrance point for stating braking branch road, the steering branch road, the supply branch road and first pipeline is connected with LNG fluid reservoirs, institute
The port of export for stating braking branch road, the steering branch road, the supply branch road and first pipeline connects with the water-bath gasifier
Connect.
Preferably, it is respectively provided with the braking branch road, the steering branch road, the supply branch road and the refrigeration branch
There are the first temperature sensor, second temperature sensor, three-temperature sensor and the 4th temperature sensor.
Preferably, the front end of the evaporator is provided with air blower, the rear end of the evaporator is provided with air-conditioning part
With car refrigerator portion.
Preferably, the refrigerator portion is provided with refrigerator air door, refrigerator air duct and the 5th temperature sensor, and the air-conditioning part sets
Air conditioner damper, air conditioning ducts and the 6th temperature sensor are equipped with, the air after the air blower will be cooled down in the evaporator divides
In not being blown into refrigerator air duct, air-conditioning duct by refrigerator air door, air conditioner damper.
Preferably, the entrance point of the described first empty bath gasifier passes through the first-class control valve and the LNG liquid storages
Tank is connected, and the port of export of the described first empty bath gasifier is connected with the entrance point of the water-bath gasifier, and the described first empty bath
Gasifier and braking tracheae arranged crosswise.
Preferably, the entrance point of the described second empty bath gasifier passes through the second control valve and the LNG liquid storages
Tank is connected, and the port of export of the described second empty bath gasifier is connected with the entrance point of the water-bath gasifier, and the described second empty bath
Gasifier and steering oil pipe arranged crosswise.
Preferably, the entrance point of the first manual stop valve is connected with the LNG fluid reservoirs, and the first manual is cut
Only the port of export of valve is connected with the entrance point of the water-bath gasifier.
Preferably, the heat exchanger includes heat exchanging pipe and cooling line, and the entrance point of the heat exchanging pipe is by described
3rd flow control valve is connected with the LNG fluid reservoirs, the import of the port of export of the heat exchanging pipe and the water-bath gasifier
End connection, the entrance point of the cooling line is connected with the port of export of the evaporator, and the port of export of the cooling line passes through
Second hand stop valve and the pump are connected, and the pump is connected with the entrance point of the evaporator.
Preferably, engine coolant is connected by the 4th flow control valve with the entrance point of the water-bath gasifier.
The automobile-used LNG cold energy utilization system of heavy type commercial of the invention is discharged using LNG in gasification, rewarming stage
Substantial amounts of cold energy, give vehicle different zones provide low-temperature receiver, met on the premise of it additionally need not consume the energy vehicle refrigeration,
The demand of radiating, substantially increases the comprehensive utilization ratio of the energy, improves vehicle riding comfort and reliability.
Brief description of the drawings
Fig. 1 is the automobile-used LNG cold energy utilization system structural representation of heavy type commercial of the invention.
(description of reference numerals)
1.LNG fluid reservoirs；2. the first sky bathes gasifier；3. the second sky bathes gasifier；4. heat exchanger；5. evaporator；6. water
Bath gasifier；7. vacuum tank；8. engine；9. the 4th flow control valve；10. first-class control valve；11. second flows are controlled
Valve；12. first manual stop valves；13. the 3rd flow control valves；14. second hand stop valves；15. engine coolant imports；
16. engine coolants are exported；17. air conditioner dampers；18. car refrigerator air doors；19. braking air pipe inlets；20. braking tracheaes go out
Mouthful；21. first temperature sensors；22. steering oil pipe imports；23. steering oil pipes are exported；24. second temperature sensors；25. is steady
Pressure valve；26. air blowers；27. air-conditioning ducts；28. car refrigerator air channels；The TEMP of 29. three-temperature sensor 30. the 4th
Device；31. pumps；The temperature sensor of 32. the 5th temperature sensor 33. the 6th；
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, with reference to the accompanying drawings and examples to this hair
It is bright to further illustrate.Implementation below makes a more detailed description to the present invention, but it does not limit the scope of the invention.
Based on the present embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Fig. 1 is the automobile-used LNG cold energy comprehensive reutilization system structure diagram of heavy type commercial of the invention.With reference to figure
1, LNG cold energy comprehensive reutilization system automobile-used to heavy type commercial of the invention is introduced.
As shown in figure 1, the liquefied natural gas (LNG) from LNG fluid reservoirs 1 out, flows into four branch roads.This four branch roads point
The braking branch road of the temperature of brakes Wei not be adjusted, the steering branch road of the temperature of steering is adjusted, for engine provides combustion
The supply branch road of gas and the refrigeration branch of regulation cabin temperature.The specific composition of this four branch roads is referring to introduced below.
Braking branch road is included in the empty bath gasifier of first-class control valve 10, first set gradually on the dynamic direction of LNG stream
2, i.e., the entrance point of the first empty bath gasifier 2 is connected by first-class control valve 10 with LNG fluid reservoirs 1.For being braking system
System provides the empty bath arranged crosswise of gasifier 2 of braking tracheae 19 and first of brake compression gas.In practice, the first empty bath gasifier
LNG pipelines can be made helix tube form by 2, and then braking tracheae 19 spirals wherein, to increase heat exchange area, promote heat to hand over
Change.
Additionally, being disposed with the first temperature sensor 21 for test temperature on the export pipeline of braking branch road.When cold
When the temperature of the braking compressed gas after but is too high, the adjust automatically LNG of first-class control valve 10 of spiral tube front end is placed in
Flow, increase cold energy produce, it is ensured that the suitable temperature of brake compression gas.
Turn to branch road and be included in the empty bath gasifier of second control valve 11, second set gradually on the dynamic direction of LNG stream
3, i.e., the entrance point of the second empty bath gasifier 3 is connected by second control valve 11 with LNG fluid reservoirs 1.For being rotation system
System provides the empty bath arranged crosswise of gasifier 3 of steering tracheae 22 and second of power steering oil.In practice, the second empty bath gasifier
LNG pipelines can be made helix tube form by 3, and then steering oil pipe 22 spirals wherein, to increase heat exchange area, promote heat to hand over
Change.
Additionally, being disposed with the second temperature sensor 24 for controlling temperature on the export pipeline for turning to branch road.When cold
When the temperature of the power steering oil after but is too high, the stream of the adjust automatically LNG of second control valve 11 of spiral tube front end is placed in
Amount, increases cold energy and produces, it is ensured that the suitable temperature of power steering oil.
Supply branch road, is included in the first manual stop valve 12, water-bath gasifier 6, steady set gradually on the dynamic direction of LNG stream
Pressure valve 25, vacuum tank 7 and engine 8.The port of export of water-bath gasifier 6 is provided with the 3rd TEMP for controlling temperature
Device 29.As shown in figure 1, engine coolant is flowed into by engine coolant import 15, by the 4th flow control valve 9 and water-bath
The entrance point of gasifier 6 is connected, and is then flowed out from engine coolant outlet 16.Engine coolant is to engine radiating
The mixed liquor of a certain proportion of ethylene glycol and water, circulates between radiator and engine.
Additionally, as seen in Figure 1, in the port of export and steering branch road of the first empty bath gasifier 2 in braking branch road
The entrance point of the port of export all with water-bath gasifier 6 of the second empty bath gasifier 3 be connected, that is, brake in branch road first and empty bathe gas
The port of export for changing device 2 and the port of export for turning to the second empty bath gasifier 3 in branch road are all connected to the He of first manual stop valve 12
On pipeline between water-bath gasifier 6.
Supply branch road is easy to the normal work of guarantee engine 8 under the less operating mode of other branch flows.Simultaneously in water-bath
Gasifier outlet side is provided with three-temperature sensor 29, for adjusting the stream of the engine coolant entrance 15 for participating in heat exchange
Amount, so as to ensure the temperature and pressure of the LNG from water-bath gasifier out, supply engine, it is to avoid engine knock.
Refrigeration branch includes the first pipeline and the second pipeline, and the first pipeline includes the 3rd flow control valve 13 being sequentially connected
With heat exchanger 4, the second pipeline includes the heat exchanger 4, the second hand stop valve 14, pump 31, the evaporator 5 that are sequentially connected.In evaporation
The front end 5 of device is provided with air blower, the rear end of evaporator 5 is provided with air-conditioning part (not shown) and car refrigerator portion (does not scheme
Show), the inside of evaporator 5 sets the 4th temperature sensor 30.Car refrigerator portion is provided with refrigerator air door 18, refrigerator air duct 28 and
Five temperature sensors 32.Air-conditioning part is provided with air conditioner damper 17, the temperature sensor 33 of air-conditioning duct 27 and the 6th.So, air blast
Air after machine 26 will be cooled down in evaporator 5 is blown into refrigerator air duct 28, air-conditioner wind by refrigerator air door 18, air conditioner damper 17 respectively
In road 27.
Heat exchanger 4 includes heat exchanging pipe and cooling line.Wherein, the entrance point of heat exchanging pipe is by the 3rd flow control
Valve processed 13 is connected with LNG fluid reservoirs, and the port of export of heat exchanging pipe is connected with the entrance point of water-bath gasifier 6；Cooling line enters
Mouth end is connected with the port of export of evaporator 5, and the port of export of cooling line is connected by the second hand stop valve 14 and pump 31, pump 31
Entrance point with evaporator 5 is connected.
Flowing has refrigerant in heat exchanger 4, and refrigerant can be the nytron such as ethylene glycol solution or ethane, propane
Thing, relatively low and more larger than the thermosol refrigerant of freezing point.
In refrigeration branch, the cold energy supply flowing refrigerant therein of generation is made it lower the temperature by LNG in heat exchanger 4, cold
Matchmaker is delivered to evaporator 5 and air heat-exchange by pump 31, returns again to be recycled in heat exchanger 4.When the temperature in evaporator 5 is passed
When the temperature that sensor 30 measures its interior air is less than 3 DEG C, the 3rd flow control valve 13 is fed back signal to, in refrigeration branch first
The flow of the LNG in pipeline will be reduced automatically, it is to avoid refrigeration transition.Air after cooling is blown into air-conditioner wind by air blower 26
Road 27 and refrigerator air duct 18, for air conditioner refrigerating and fridge freshness retaining.Air conditioner damper 17 and refrigerator air door 18 for adjusting air quantity
Aperture by be respectively placed in air-conditioning duct 27 and refrigerator air duct 28 temperature signal control, temperature control signals are by temperature sensor
32nd, sent after the temperature of 33 detection air-conditionings and refrigerator.
Embodiment
Below as a example by the heavy-duty commercial vehicle by taking certain company matching WP12NG350E52 model natural gas engines as an example, to this
The automobile-used LNG cold energy recycles integrated system of heavy type commercial of invention is described in detail.
The cold energy demand of brakes, steering, car refrigerator and the air-conditioning of the heavy-duty commercial vehicle is adjusted first.
Wherein radiating requirements of refrigeration system：Automobile-used brake compression gas, specific heat C is 1030J/kg DEG C, and density is
0.589kg/m3, flow is 340L/min, and the maximum temperature of inflating pump outlet is 150 DEG C, and compressed gas requirement operating temperature is not
Higher than 60 DEG C, so
QBraking=C*M* Δs t=1030*0.589*340/1000/60*85=292 (W)；
The radiating requirements of steering：Automobile-used power steering oil, specific heat C is 1880J/kg DEG C, and density is 900kg/m3, stream
It is 20L/min to measure, and temperature needs at least to reduce by 20 DEG C, so
QTurn to=C*M* Δs t=1880*900*20/1000/60*20=7501 (W)；
Car refrigerator refrigeration demand：Understood according to the conversion of general domestic refrigerator refrigerating capacity, the volume of car refrigerator is 35L,
Cryogenic temperature is 5 DEG C, and ambient temperature is 25 DEG C, then refrigeration work consumption is about 46W；
Air-conditioning system refrigeration demand：Air specific heat C is 1008J/kg DEG C, and density is 1.29kg/m3, air blower flow is
360m3/ h, indoor difference variation is 15 DEG C, so
QAir-conditioning=C*M* Δs t=1008*1.29*360/3600*15=1950 (W)；
The total a maximum demand of vehicle cold energy is 292+7510+1950+46=9798 (W).
It is 39kg/h that the car operates in the interval gas consumption amount average of economic speed, then utilization system root of the invention
Heat exchanger is designed according to the different demands of gas consumption amount and each region cold energy so that -160 DEG C of liquified natural gas is cold into engine
But liquid before the heat exchanger of thermal source to become -25 DEG C of gaseous natural gas.Specially -160 DEG C of liquified natural gas is from fluid reservoir 1
Out, it is divided into 4 tunnel branches.Wherein all the way for brakes is cooled down, by the first empty bath gasifier 2, its evaporation is set to become -25 DEG C
Gaseous natural gas, latent heat 525.4kJ/kg can be discharged, it is necessary to LNG maximum stream flows be 1.29kg/h；Wherein air-conditioning and car
Carry refrigerator branch, -160 DEG C of liquified natural gas, by heat exchanger 4, make gaseous natural gas that its evaporation becomes -25 DEG C, it is necessary to
LNG maximum stream flows be 8.67kg/h；Wherein all the way for steering is cooled down, -160 DEG C of liquified natural gas is empty by second
Bath gasifier 3, make its evaporation become -25 DEG C gaseous natural gas, it is necessary to LNG maximum stream flows be 33.16kg/h；
When car refrigerator and air-conditioning are all in maximum refrigeration requirement in braking and driver's cabin, it is necessary to (1.29+8.67)
The LNG stream amount of 9.96kg/h, now leaves the maximum LNG stream amount of steering branch for for (39-9.96) 29.04kg/h, accounts for and turns
To (29.04/33.16) 88% of refrigeration requirement, the air-cooled auxiliary during being travelled along with real vehicle can meet to use and want
Ask.
Claims (8)
1. the automobile-used LNG cold energy comprehensive reutilization system of a kind of heavy type commercial, it is characterised in that including：
Braking branch road, including first-class control valve, the first empty bath gasifier for setting gradually；
Turn to branch road, including second control valve, the second empty bath gasifier for setting gradually；
Supply branch road, including first manual stop valve, water-bath gasifier, pressure maintaining valve, vacuum tank and the engine for setting gradually；
Refrigeration branch, including the first pipeline and the second pipeline, first pipeline include the 3rd flow control valve being sequentially connected
And heat exchanger, second pipeline includes the heat exchanger, the second hand stop valve, pump, the evaporator that are sequentially connected；Wherein,
The entrance point of the braking branch road, the steering branch road, the supply branch road and first pipeline all connects with LNG fluid reservoirs
Connect, the port of export of the braking branch road, the steering branch road and first pipeline is all connected with the water-bath gasifier；
The heat exchanger includes heat exchanging pipe and cooling line, and the entrance point of the heat exchanging pipe is controlled by the 3rd flow
Valve is connected with the LNG fluid reservoirs, and the port of export of the heat exchanging pipe is connected with the entrance point of the water-bath gasifier, described cold
But the entrance point of pipeline is connected with the port of export of the evaporator, and the port of export of the cooling line cuts manually by described second
Only valve and the pump are connected, and the pump is connected with the entrance point of the evaporator.
2. the automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial according to claim 1, it is characterised in that described
The first temperature sensor, the second temperature are respectively arranged with braking branch road, the steering branch road, the supply branch road and refrigeration branch
Degree sensor, three-temperature sensor and the 4th temperature sensor.
3. the automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial according to claim 1, it is characterised in that in institute
The front end for stating evaporator is provided with air blower, and the rear end of the evaporator is provided with air-conditioning part and car refrigerator portion.
4. the automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial according to claim 3, it is characterised in that described
Car refrigerator portion is provided with refrigerator air door, refrigerator air duct and the 5th temperature sensor, and the air-conditioning part is provided with air conditioner damper, sky
Adjust passage and the 6th temperature sensor, the air blower by the evaporator cool down after air respectively by refrigerator air door,
Air conditioner damper is blown into refrigerator air duct, air-conditioning duct.
5. the automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial according to claim 1, it is characterised in that described
The entrance point of the first empty bath gasifier is connected by the first-class control valve with the LNG fluid reservoirs, the described first empty bath
The port of export of gasifier is connected with the entrance point of the water-bath gasifier, and the described first empty bath gasifier intersects with braking tracheae
Arrangement.
6. the automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial according to claim 1, it is characterised in that described
The entrance point of the second empty bath gasifier is connected by the second control valve with the LNG fluid reservoirs, the described second empty bath
The port of export of gasifier is connected with the entrance point of the water-bath gasifier, and the described second empty bath gasifier intersects with steering oil pipe
Arrangement.
7. the automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial according to claim 1, it is characterised in that described
The entrance point of first manual stop valve is connected with the LNG fluid reservoirs, the port of export and the water of the first manual stop valve
Bathe the entrance point connection of gasifier.
8. the automobile-used LNG cold energy comprehensive reutilization system of heavy type commercial according to any one of claim 1 to 7, its feature
It is that engine coolant is connected by the 4th flow control valve with the entrance point of the water-bath gasifier.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640330A (en) * | 2016-10-26 | 2017-05-10 | 中山市蓝水能源科技发展有限公司 | Comprehensive utilization device for LNG ship energy |
| CN110525164B (en) * | 2019-07-03 | 2023-04-14 | 一汽解放汽车有限公司 | LNG cold energy utilization air conditioning system and control method |
| CN112393486B (en) * | 2020-11-06 | 2022-06-21 | 中国海洋石油集团有限公司 | Method for utilizing cold energy of liquefied natural gas |
| CN114659022A (en) * | 2020-12-23 | 2022-06-24 | 北汽福田汽车股份有限公司 | Vaporization system of liquid fuel and vehicle |
| CN113082858A (en) * | 2021-03-03 | 2021-07-09 | 佛山市冠恒丰机电设备有限公司 | Tail gas processing apparatus for feed production |
| CN113932513A (en) * | 2021-11-05 | 2022-01-14 | 浙江智海化工设备工程有限公司 | Liquefied natural gas cold energy utilization device |
| CN114484966A (en) * | 2022-01-18 | 2022-05-13 | 东风商用车有限公司 | Chassis refrigerating system of vehicle-mounted refrigerator of LNG commercial automobile and control method |
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