CN204432312U - LNG is heavy, and truck carries cold energy use air conditioner refrigerating machinery - Google Patents
LNG is heavy, and truck carries cold energy use air conditioner refrigerating machinery Download PDFInfo
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- CN204432312U CN204432312U CN201520074734.4U CN201520074734U CN204432312U CN 204432312 U CN204432312 U CN 204432312U CN 201520074734 U CN201520074734 U CN 201520074734U CN 204432312 U CN204432312 U CN 204432312U
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- lng
- cold energy
- electromagnetic valve
- carburetter
- air conditioner
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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Abstract
The utility model discloses the heavy truck of a kind of LNG and carry cold energy use air conditioner refrigerating machinery, comprise LNG steel cylinder, carburetter, air-conditioning, refrigerator, driving engine and controller, described LNG steel cylinder is connected with carburetter by pipeline, and carburetter is connected with circulation pump, driving engine respectively; Circulation pump is connected with heat exchanger, air-conditioning, refrigerator respectively by the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve, and heat exchanger, air-conditioning, refrigerator are connected with carburetter respectively by pipeline; Circulation line is provided with between described heat exchanger and driving engine; Described controller is connected with circulation pump, the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve respectively.Decrease compressor in the utility model, save the fuel driving compressor operation, reclaimed the cold energy of LNG vaporescence, served effect that is energy-saving and cost-reducing, that reduce costs, effectively alleviate ambient pressure; And the utility model structure is simple, concise in technology, is convenient to promote the use of.
Description
Technical field
The present invention relates to the technical field of car air-conditioner refrigerator apparatus, be specifically related to the heavy truck of a kind of LNG and carry cold energy use air conditioner refrigerating machinery.
Background technology
In recent years, LNG(liquefied natural gas) the utilization of field of traffic become Gas Industry development bright spot.The efficient gas utilization project such as LNG automobile and marine fuel is clearly encouraged in country's natural gas development " 12 " planning, and natural gas-powered car is also classified as by October, 2012 new edition " gas utilization policy " first develops class.Under the support of national policy, multiple local government carry out bus in public transport field, taxicar " oil to gas " and propose specific aim.Therefore, LNG achieves fast development as vehicle fuel.
LNG advantages for development are in the automotive industry clearly: its firing point is low; Clean environment firendly after burning, without black smoke, without lime-ash and tar, almost can freely discharge; Volume is little; Energy storage density is large, more than 2 times of continuous operating range normally CNG; Safety performance is good, pressure store low (close to normal pressure), and density (0.45kg/m
3) than density of air (0.55kg/m
3) low, leak in air and also to aerial diffusion, can not affect personal safety; Have good burning performance, antiknock performance is strong.At present, China's LNG automobile industry is in the early stage of development, estimates that the quick growth of following China automobile pollution and the fast development of market for natural gas will drive the sustainable growth of LNG automobile industry, makes LNG automobile developing prospect bright.
LNG as vehicle fuel is the liquid form of natural fuels, is stored in temperature more and is-162 DEG C, and pressure is in the low temperature storage tank of about 0.1MPa.The favourable storage of LNG and transport, but the state gaseous state often when being finally utilized, therefore, LNG wanted first through overflash before being utilized.Facility and the power consumption of current of producing 1 ton of liquefied natural gas are about 850kW
. h, and in LNG acception station, a large amount of cold of releasing during LNG vaporization, its value is about 830-860kJ/kg, and namely LNG vaporescence discharges with a large amount of cold energs.Reclaim this part cold energy, not only effectively make use of the energy, and decrease mechanically refrigerated a large amount of power consumption, there is considerable economic and social profit.And generally, this part cold has been rejected usually in LNG carburetter, cause the waste of mass energy, even also can cause environmental pollution.For this reason, LNG cold energy use causes the extensive concern of Chinese scholars.
At present, LNG cold energy use is generally divided into directly utilization and indirect utilization two kinds of modes.Wherein, direct utilization mainly concentrates on generating, air separation, manufacture dry ice, cold storage warehouse, sea water desalination, air conditioning for automobiles and the aspect such as cold temperature culture, cultivation.The mode of indirect utilization LNG cold energy mainly contains cryogenic pulverization, sewage disposal and sea water desalination etc.Indirect utilization mainly produces liquid nitrogen or liquid oxygen by LNG cold energy, and recycling liquid nitrogen, liquid oxygen carry out cryogenic pulverization, sewage disposal etc. respectively.No matter being direct or the mode of indirect utilization LNG cold energy, is all recycled LNG cold energy by single channel, and from the angle analysis of thermodynamic analysis, single approach can not make full use of LNG cold energy, and its loss is larger.Multiple way of recycling should be carried out comprehensive application, to improve the degree of utilization of LNG cold energy by a lot of expert's suggestion at present.Japan is one of country developing LNG cold energy use project the earliest, and in low-temperature electricity-generating, air luquefaction and frozen food etc., reach degree of being practical, economical, societal benefits are quite remarkable.However, current various countries LNG cold energy use rate is still not high, in areas such as Japan, Korea S and TaiWan, Chinas, only have the LNG cold of 20% to obtain utilization, and this technology of China is started late, and the example of application is little at present.
LNG cryogenic energy utilization is generally used for coach air conditioner and van cooler at automotive field, original mechanical refrigeration unit can be replaced like this, not only save investment, and eliminate electric energy and the noise emission that brings of compressor that mechanical refrigeration consumes, there is the double meaning of energy saving standard.But the application on heavy trucks the driver of LNG cold still belongs to blank.According to statistics, so far, national LNG heavy duty truck recoverable amount is more than 200,000, and only annual newly-increased heavy duty truck 700,000 in 2014, wherein LNG heavily blocks 50,000.Existing LNG lorry air-conditioning system is traditional electrical compress air conditioner, and this not only consumes part onboard fuel, and the use of dichlorodifluromethane class refrigerant simultaneously has also increased the weight of the pressure of environment.Simultaneously, for heavy duty truck, chaufeur is hurried back and forth outside throughout the year, and service conditions is arduous, and diet is put up with, and in truck driver's long-distance transport, usually wish energy convenient diet, present circumstances, carries food with car unrealistic, easily putrid and deteriorated, if car has the fresh-keeping foodstuff that can store 3-5 days magnitudes, will be a kind of behave be popular concerning truck driver.Heavily needing on the one hand in card power fuel LNG use procedure to utilize extra heat LNG vaporization to safe combustion temperature, there is refrigeration demand again in another aspect.According to calculating, the enough operator'ies compartment of this cold energy are for cold-peace one small refrigerator.Therefore, for heavy duty truck is equipped with LNG cold energy use air conditioner refrigerating machinery, there are significant realistic meaning and wide market outlook.
Summary of the invention
The technical problem to be solved in the present invention is to provide the heavy truck of a kind of LNG and carries cold energy use air conditioner refrigerating machinery, it normally can gasify on the basis of provisioning engine normal operation at guarantee LNG, carry out without phase transformation Cooling capacity exchanging, supply take LNG as the cold of the heavily card working space of fuel, effectively can reduce over-the-road expense simultaneously, and the freon refrigerant alleviating conventional compression a/c system uses the ambient pressure brought, and has energy efficiency and the environment protecting of highly significant.
Technical scheme of the present invention is: a kind of LNG is heavy, and truck carries cold energy use air conditioner refrigerating machinery, comprise LNG steel cylinder, carburetter, air-conditioning, refrigerator, driving engine and controller, described LNG steel cylinder is connected with carburetter by pipeline, and carburetter is connected with circulation pump, driving engine respectively; Circulation pump is connected with heat exchanger, air-conditioning, refrigerator respectively by the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve, and heat exchanger, air-conditioning, refrigerator are connected with carburetter respectively by pipeline; Circulation line is provided with between described heat exchanger and driving engine; Described controller is connected with circulation pump, the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve respectively.
Be provided with secondary refrigerant in described carburetter, the LNG in LNG steel cylinder enters driving engine after secondary refrigerant heat exchange vaporization.
Described carburetter is provided with liquid vessel.
Described liquid vessel top is provided with inlet, and liquid vessel bottom is provided with alarm.
Be provided with air outlet and air-condition heat exchanger in described air-conditioning, air outlet place is provided with the first temperature sensor, and air-condition heat exchanger place is provided with the second temperature sensor.
Three-temperature sensor is provided with in described refrigerator.
Described first temperature sensor, the second temperature sensor are connected with controller respectively with three-temperature sensor.
Described refrigerator comprises shell and inner bag, is provided with polyurethane heat insulation material between shell and inner bag, and outer surface of liner is provided with aluminum tube band heat exchanger.
Described aluminum tube band heat exchanger is wrapped in the outside face of inner bag.
Described secondary refrigerant is the secondary refrigerant of low temperature without phase-change heat-exchange refrigerating.
Carburetter in the present invention adopts low temperature to carry out cold energy extraction without phase-change heat-exchange secondary refrigerant, instead of traditional on-board air conditioner, the compressor of refrigerator and condenser, save the fuel driving compressor operation, capacity usage ratio is high, serve effect that is energy-conservation, that reduce costs, and effectively can alleviate the problem of under power when LNG heavily blocks climbing; Meanwhile, this device does not adopt traditional freon refrigerant, effectively alleviates ambient pressure.Controller of the present invention by carrying out adjusting refrigerant flow rate to the control of circulation pump, electromagnetic valve and temperature sensor, thus ensure that truck is in the stability accelerated or under idling mode, air-conditioning and refrigerator run; When the season without air-conditioning, refrigerator, refrigerator can also be converted to soak case, carries out food heat-insulation; Therefore, the recovery that present invention achieves cold before the heavy truck carburretion of LNG is in order to the machinery of on-board air conditioner and refrigerator.And structure of the present invention is simple, concise in technology, only heavily need block on original fuel pipeline at LNG and install the cooling that a carburetter just can realize air-conditioning and refrigerator additional, be convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the section-drawing of refrigerator of the present invention.
Detailed description of the invention
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as limiting to the invention.
A kind of LNG is heavy, and truck carries cold energy use air conditioner refrigerating machinery, as shown in Figure 1, comprises LNG steel cylinder, carburetter, air-conditioning, refrigerator, driving engine and controller.LNG steel cylinder 1 is connected with carburetter 3 by pipeline, is provided with secondary refrigerant 26 in carburetter 3, and secondary refrigerant 26 is that low temperature is without phase-change heat-exchange refrigerating liquid coolant.Namely secondary refrigerant 26 flows in pipeline always in fluid form in pipeline.Carburetter 3 is provided with liquid vessel 27, and liquid vessel 27 is arranged on the position flushed with the height point of whole system pipeline.Liquid vessel 27 top is provided with inlet 29, and bottom is provided with alarm 28.Alarm 28 carries out warning reminding time lower for liquid vessel 27 liquid level.During system worked well, be filled with secondary refrigerant 26 by the inlet 29 of liquid vessel 27 to whole device.Meanwhile, alarm 28 can make liquid vessel 27 be kept above certain liquid level of low liquid level, thus ensures the sufficient supplies of whole system secondary refrigerant 26 and do not carry air, the secondary refrigerant 26 in heat transfer process also can be avoided to expand simultaneously.Carburetter 3 is connected with driving engine 23 by pipeline.LNG in LNG steel cylinder 1 enters in carburetter 3 via pipeline under pressure, and LNG vaporizes in carburetter 3 with after secondary refrigerant 26 heat exchange, then enters driving engine 23, for driving engine 23 provides fuel.
After secondary refrigerant in carburetter 3 26 and LNG heat exchange, temperature reduces, and then enters circulation pump 4.Circulation pump 4 is connected with heat exchanger 22, air-conditioning 11, refrigerator 12 respectively by the first electromagnetic valve 20, second electromagnetic valve 9, the 3rd electromagnetic valve 10, and heat exchanger 22, air-conditioning 11, refrigerator 12 are connected with carburetter respectively by pipeline.Namely the secondary refrigerant 26 that circulation pump 4 is got flow to the first electromagnetic valve 20 by the road, enters in heat exchanger 22 through the first electromagnetic valve 20, carries out thermal exchange, then flow back in carburetter 3 by the road with from the hot water of water jacket in driving engine 23.Air outlet 13 and air-condition heat exchanger 14 is provided with in air-conditioning 11.The secondary refrigerant 26 that circulation pump 4 is got flow to the second electromagnetic valve 9 by the road, then enters air-conditioning 11, and carries out interchange of heat in air-condition heat exchanger 14.The secondary refrigerant 26 that circulation pump 4 is got flow to the 3rd electromagnetic valve 10 by the road, and enters in refrigerator 12 and carry out interchange of heat.Converge after the secondary refrigerant 26 that temperature after heat exchange raises flows out air-conditioning 11 and refrigerator 12 and turn back in carburetter 3 through another pipeline again.Namely in carburetter 3, secondary refrigerant 26 provides to enter in heat exchanger 22, air-conditioning 11, refrigerator 12 after power through circulation pump 4 and carries out interchange of heat, and then turns back in carburetter 3.Carburetter 3 forms circulation line with heat exchanger 22, air-conditioning 11, refrigerator 12 respectively, thus carries out interchange of heat.
Circulation line is provided with between heat exchanger 22 and driving engine 23.With the hot water that the fluid of secondary refrigerant 26 heat exchange flowed through in heat exchanger 22 is in driving engine 23 water jacket, hot water flows to driving engine 23 by the road, flows back into heat exchanger 22 through another pipeline 25 from driving engine.The hot water of the secondary refrigerant 26 pairs of driving engines 23 namely in heat exchanger 22 carries out thermal exchange.
For guarantee system is normally run, air outlet 13 place of air-conditioning 11 is provided with the first temperature sensor 15, and air-condition heat exchanger 14 place is provided with the second temperature sensor 16, is provided with three-temperature sensor 17 in refrigerator 12.Circulation pump 4, first electromagnetic valve 20, second electromagnetic valve 9, the 3rd electromagnetic valve 10, first temperature sensor 15, second temperature sensor 16, three-temperature sensor 17 are all connected with controller 21.During operation, controller 21 controls them respectively according to respective feedback signal.
Refrigerator 12 comprises shell 31 and inner bag 30, and shell 31 and inner bag 30 are made up of corrosion-resistant steel.Be provided with polyurethane heat insulation material between shell 31 and inner bag 30, inner bag 31 outside face is provided with aluminum tube band heat exchanger 33.Aluminum tube band heat exchanger 33 is wound around and is attached on the outside face of inner bag 31.
When system is normally run, for air-conditioning 11, the feedback signal of the second temperature sensor 16 the first temperature sensor 15 of leaving air temp, air-condition heat exchanger 14 being responsible for frosting early warning is responsible for by controller 21 according to air outlet 13 place on air-conditioning 11, regulate the aperture of the second electromagnetic valve 9 to regulate secondary refrigerant 26 flow, thus regulate the temperature of air-conditioning 11.Concerning refrigerator 12, controller 21 is by three-temperature sensor 17 feedback signal of monitoring refrigerator 12 inside, and the aperture controlling the 3rd electromagnetic valve 10 regulates secondary refrigerant 26 uninterrupted, thus regulates the temperature of refrigerator 12.If secondary refrigerant 26 temperature is too low, the aperture of the first electromagnetic valve 20 is regulated by controller 21, part secondary refrigerant 26 is allowed to enter in heat exchanger 22 by the road, thermal exchange is carried out with the high-temperature-hot-water from driving engine 23, hot water after heat exchange flows back in driving engine 23 water jacket through another pipeline again, thus improving the temperature of secondary refrigerant 26 in heat exchanger 22, the secondary refrigerant 26 after heat exchange flows back to carburetter 3 by the road again, reduces the temperature of secondary refrigerant 26 in carburetter 3.Meanwhile, return through pipeline after the secondary refrigerant 26 in air-conditioning 11 and refrigerator 12 after heat exchange converges and enter carburetter 3, thus regulate the too low phenomenon of secondary refrigerant 26 temperature.
Therefore, controller 21 by regulating the flow of secondary refrigerant 26 to the control of circulation pump, electromagnetic valve and temperature sensor, thus ensure that truck is in the stability accelerated or under idling mode, air-conditioning 11 and refrigerator 12 run.And its structure is simple, concise in technology, only heavily need block on original fuel pipeline at LNG and install the cooling that a carburetter 3 just can realize air-conditioning 11 and refrigerator 12 additional, be convenient to promote the use of.
When the season without the need to air-conditioning, refrigerator, close the second electromagnetic valve 9 by controller 21, stop the operation of air-conditioning 11.Meanwhile, regulated the aperture of the 3rd electromagnetic valve 10 and the first electromagnetic valve 20 by controller 21, allow the secondary refrigerant 26 of high temperature flow through the aluminum tube band heat exchanger 33 of refrigerator 12, the function of refrigerator 12 changes into soak case.When the season without air-conditioning, refrigerator, the refrigerator 12 that this device relates to can be converted to soak case, carries out food heat-insulation, adds the utility function of refrigerator.
Secondary refrigerant 26 be low temperature without phase-change heat-exchange refrigerating liquid, this device is adopted without phase-change heat-exchange technology, and secondary refrigerant 26 and LNG carry out without phase-change heat-exchange, instead of compressor and the condenser of traditional vehicle-mounted air-conditioning refrigerator, while winter also can be used as insulation can use.This device has effectively reclaimed the part cold energy of LNG, saves fuel, avoids under power problem during heavily card climbing, simultaneously also significant to the aspect such as energy-saving and emission-reduction, environmental protection.
This device is compared with prior art, has energy efficiency and the environment protecting of highly significant.The present invention to before LNG truck carburretion cold reclaim, in order to the machinery of the on-board air conditioner in truck and refrigerator.Carburetter 2 in this device adopts low temperature to carry out cold energy extraction without phase-change heat-exchange secondary refrigerant 26, instead of traditional on-board air conditioner, the compressor of refrigerator and condenser, save the fuel driving compressor operation, capacity usage ratio is high, serve energy-conservation, the effect reduced costs, and the problem effectively can alleviating under power when LNG heavily blocks climbing.Meanwhile, compare traditional air conditioner, this device does not adopt traditional freon refrigerant, effectively alleviates ambient pressure.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. the heavy truck of LNG carries cold energy use air conditioner refrigerating machinery, it is characterized in that comprising LNG steel cylinder (1), carburetter (3), air-conditioning (11), refrigerator (12), driving engine (23) and controller (21), described LNG steel cylinder (1) is connected with carburetter (3) by pipeline, and carburetter (3) is connected with circulation pump (4), driving engine (23) respectively; Circulation pump (4) is connected with heat exchanger (22), air-conditioning (11), refrigerator (12) respectively by the first electromagnetic valve (20), the second electromagnetic valve (9), the 3rd electromagnetic valve (10), and heat exchanger (22), air-conditioning (11), refrigerator (12) are connected with carburetter (3) respectively by pipeline; Circulation line is provided with between described heat exchanger (22) and driving engine (23); Described controller (21) is connected with circulation pump (4), the first electromagnetic valve (20), the second electromagnetic valve (9), the 3rd electromagnetic valve (10) respectively.
2. the heavy truck of LNG according to claim 1 carries cold energy use air conditioner refrigerating machinery, it is characterized in that, be provided with secondary refrigerant (26) in described carburetter (3), the LNG in LNG steel cylinder (1) enters driving engine (23) after secondary refrigerant (26) heat exchange vaporization.
3. the heavy truck of LNG according to claim 2 carries cold energy use air conditioner refrigerating machinery, and it is characterized in that, described carburetter (3) is provided with liquid vessel (27).
4. the heavy truck of LNG according to claim 3 carries cold energy use air conditioner refrigerating machinery, and it is characterized in that, described liquid vessel (27) top is provided with inlet (29), and liquid vessel (27) bottom is provided with alarm.
5. the heavy truck of LNG according to claim 1 carries cold energy use air conditioner refrigerating machinery, it is characterized in that, air outlet (13) and air-condition heat exchanger (14) is provided with in described air-conditioning (11), air outlet (13) place is provided with the first temperature sensor (15), and air-condition heat exchanger (14) place is provided with the second temperature sensor (16).
6. the heavy truck of LNG according to claim 1 carries cold energy use air conditioner refrigerating machinery, and it is characterized in that, described refrigerator is provided with three-temperature sensor (17) in (12).
7. the LNG according to claim 5 or 6 is heavy, and truck carries cold energy use air conditioner refrigerating machinery, it is characterized in that, described first temperature sensor (15), the second temperature sensor (16) are connected with controller (21) respectively with three-temperature sensor (17).
8. the LNG according to claim 1 or 6 is heavy, and truck carries cold energy use air conditioner refrigerating machinery, it is characterized in that, described refrigerator (12) comprises shell (31) and inner bag (30), be provided with polyurethane heat insulation material (32) between shell (31) and inner bag (30), inner bag (30) outside face is provided with aluminum tube band heat exchanger (33).
9. the heavy truck of LNG according to claim 8 carries cold energy use air conditioner refrigerating machinery, and it is characterized in that, described aluminum tube band heat exchanger (33) is wrapped in the outside face of inner bag (30).
10. the heavy truck of LNG according to claim 2 carries cold energy use air conditioner refrigerating machinery, and it is characterized in that, described secondary refrigerant (26) is for low temperature is without the secondary refrigerant of phase-change heat-exchange refrigerating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074734.4U CN204432312U (en) | 2015-02-03 | 2015-02-03 | LNG is heavy, and truck carries cold energy use air conditioner refrigerating machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074734.4U CN204432312U (en) | 2015-02-03 | 2015-02-03 | LNG is heavy, and truck carries cold energy use air conditioner refrigerating machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204432312U true CN204432312U (en) | 2015-07-01 |
Family
ID=53600222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520074734.4U Withdrawn - After Issue CN204432312U (en) | 2015-02-03 | 2015-02-03 | LNG is heavy, and truck carries cold energy use air conditioner refrigerating machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204432312U (en) |
-
2015
- 2015-02-03 CN CN201520074734.4U patent/CN204432312U/en not_active Withdrawn - After Issue
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150701 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |