CN1098779C - Adsorbed air contioner for driver's cab of diesel locomotive - Google Patents
Adsorbed air contioner for driver's cab of diesel locomotive Download PDFInfo
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- CN1098779C CN1098779C CN00127965A CN00127965A CN1098779C CN 1098779 C CN1098779 C CN 1098779C CN 00127965 A CN00127965 A CN 00127965A CN 00127965 A CN00127965 A CN 00127965A CN 1098779 C CN1098779 C CN 1098779C
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- evaporator
- adsorber
- regenerator
- cab
- diesel locomotive
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Abstract
The present invention relates to an absorption type air conditioner for a cab of a diesel locomotive. The air conditioner comprises an absorber, a condenser, a liquid reservoir, a U-shaped return preventing pipe, a vacuum valve, an evaporator, a regenerator, an airflow switching device, a fan coil pipe, a pressure balancing pipe, a pump and a fin pipe heat exchanger, wherein the airflow switching device is connected with the absorber; the absorber is communicated with the condenser through a pipeline; the condenser is communicated with the evaporator through a pipeline; the evaporator is connected with the fan coil pipe through the fin pipe heat exchanger; the regenerator is connected with the evaporator through a pipeline and an orifice plate; the evaporator is connected with the absorber through a pipeline.
Description
What the present invention relates to is a kind of diesel locomotive absorption type A/C, and particularly a kind of adsorbed air contioner for driver's cab of diesel locomotive belongs to fridge equipment technology type field.
At present, the diesel locomotive a/c system all utilizes the electric power of locomotive electrical generator output, converts direct current (DC) to alternating current by inverter, drives refrigerating compressor and freezes.This refrigerating method needs to consume a large amount of diesel oil.And the complex structure of inverter, involve great expense and reliability low.Now the A/C of entrucking to adopt CFCs and HCFCs be the open type compressor of refrigerant more, this refrigerant leaks easily, destroys atmospheric ozone layer and produces green-house effect, both contaminated environment, use cost is also very high, thereby this type of refrigerant is forbidden successively in the world.And new alternative working medium research and development are made slow progress.The external adsorption type air-conditioning system that also once proposed with the engine exhaust driving, as U.S. D.Tchemev (" A Waste Heat DrivenAutomotive Air Conditioning System ", Proc.Of the Int.Sorption Heat Pump Conf., 65-70,1999) (" automotive air-conditioning system of afterheat driven ", " 99 ' international absorption-adsorption type heat pump proceeding ", P65-70,1999) once proposing a kind of is the right absorption type automotive air-conditioning system of refrigeration working medium with molecular sieve-methyl alcohol.Because methyl alcohol has severe toxicity, can decompose when temperature is higher than 150 ℃, causes system not work, therefore use the thermal source highest temperature of the absorption type system of methyl alcohol refrigerant to be restricted.Studies show that in recent years, methyl alcohol also can decompose under the catalytic action of molecular sieve.The exhaust temperature of combustion engine generally can reach 500～600 ℃, and the resolution temperature of molecular sieve is easy to cause Methanol Decomposition above 150 ℃, so methyl alcohol is not suitable for the refrigerant as the adsorption refrigeration system of afterheat of IC engine driving.D.Tchemev has studied under 100 ℃ of heat source temperatures, the refrigeration performance of molecular sieve-methyl alcohol, but do not provide the complete scheme of this technology.
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of new adsorbed air contioner for driver's cab of diesel locomotive is provided, it is according to the absorption type refrigerating principle, exhaust heat and locomotive wind surface with diesel locomotive drive adsorbent refrigerator, and by regenerator, realize to locomotive cab continuously, cooling stably.
Technical scheme of the present invention is as follows: adsorbed air contioner for driver's cab of diesel locomotive comprises adsorber, condenser, reservoir, anti-return U type pipe, vacuum valve, evaporator, regenerator, the air-flow shifter, fan coil, pressure equalizing pipe, pump and finned tube exchanger, the air-flow shifter is connected with adsorber, adsorber communicates with condenser by pipeline, condenser is connected with evaporator by pipeline, evaporator links to each other with fan coil by finned tube exchanger, regenerator passes through pipeline, orifice plate links to each other with evaporator, and evaporator links to each other with adsorber by pipeline.Consider the particularity of locomotive operation to requirements such as the safety of system, reliability, maintainability, manufacturabilities, adsorber selects for use molecular sieve-water right as refrigeration working medium, and molecular sieve is an adsorbent, and water is refrigerant.This refrigeration working medium is right, and desorption temperature is applicable to the high-temperature exhaust air afterheat driven of diesel locomotive up to 200～300 ℃.Condensing temperature is 50～80 ℃, the wind surface direct quenching in the time of fully can be by locomotive driving; When the locomotive stagnation of movement, adsorber then utilizes blower fan that adsorber is carried out forced cooling if be in absorption phase.Adsorber adopts shell-and-tube heat exchanger, and flue gas or air pass through in pipe, and the molecular sieve of filler particles shape leaves the refrigerant vapor passage between the fin of the pipe outside in adsorber, to strengthen mass transfer effect.Condenser adopts the air cooling type heat exchanger, gives condensation with locomotive high speed wind surface, and the heat that is discharged when refrigerant vapour condenses is by the wind surface exhaust to atmosphere.Evaporator and regenerator are integrated, compact conformation, and installing space is little.Its in-to-in water is both as refrigerant, again as cool storage medium, utilizes the forced convection of water between evaporator and the regenerator to realize putting coldly to the cold-peace of filling of regenerator, reaches the cold-storage and the external purpose of cooling.Separate with orifice plate evaporator and regenerator inside, and the outside anti-return U type pipe that adopts is communicated with micro pump of parallel series.Fluid column in the anti-return U type pipe can be offset the difference of pressure between evaporator and the regenerator, and micro pump can be sent to evaporator from regenerator with cryogenic freezing water, and micro pump is when quitting work, and chilled water can not be back to evaporator from regenerator.Heat exchanger in the evaporator is a finned tube exchanger, be immersed in the refrigerant, adopt the indirect heat exchange mode in the pipe of finned tube exchanger between the refrigerant chilled water in the chilled water and the outside,, system is moved under good vacuum state with the possibility that reduces to leak.Adsorber is in absorption phase, and the pipeline between evaporator and the adsorber can guarantee that the refrigerant vapour in the evaporator can enter adsorber smoothly under the control of vacuum valve.
The operation sheet of adsorbed air contioner for driver's cab of diesel locomotive of the present invention is:
Gas by the air-flow shifter is controlled, conversion enters adsorber makes the locomotive exhaust heat enter adsorber, drives adsorber, and adsorbent temperature, pressure raise, and refrigerant is resolved.Refrigerant vapour after the parsing enters condenser, enters evaporator with sweat cooling after condensing into liquid, and cold then is sent to by fan coil by the fin tube heat parallel operation in the evaporator needs the air conditioner refrigerating part, as locomotive cab.Subsequently, under the control of air-flow shifter, the locomotive wind surface enters adsorber, adsorbent temperature, pressure reduces, refrigerant evaporation in the evaporator, refrigerant vapour is adsorbed agent absorption after piping enters adsorber, the cold more than needed that produces in the evaporator by refrigerant storage in regenerator, when adsorber is in parse state or the of short duration stagnation of movement of locomotive, micro pump is sent to evaporator from regenerator through anti-return U type pipe with cryogenic freezing water, and be sent to by the chilled water in the fin tube heat parallel operation pipe and need the air conditioner refrigerating part, make diesel locomotive absorption type A/C of the present invention have continous-stable cooling function.
In the gross calorific power that fuel of internal combustion engine burning produces, have an appointment 30～35% heat exhaust to atmosphere and waste.With the 16240ZB diesel engine is example, locomotive is under the full load operating mode, the COP=0.20 that the air-conditioning cooling load of diesel locomotive cab is pressed 5kW, adsorbent refrigerator calculates, the required heating power of exhaust thermal source is 25kW, this heat only be diesel locomotive exhaust heat total amount (2009kW) 1.24%.Thereby, utilize the exhaust heat of diesel locomotive to drive adsorber and can realize.As thermal source, the adsorber heating is resolved with the waste heat of diesel locomotive exhaust, need in freeing pipe, install adsorber additional, so that from exhaust, obtain partial heat energy.Consider the factors such as on-way resistance, local resistance of exhaust, under design conditions, exhaust can be controlled in the 150Pa by adsorber and the total pressure drop behind Cheng Guandao, increases the back pressure ranges (2000Pa) that device allows much smaller than the combustion engine turbine.The operation conditions complexity of diesel locomotive, under some operating mode, burning is also insufficient, and imperfect combustion carbide metal in the smoke discharging accumulates in heat exchanger surface easily and causes knot carbon.Because the coefficient of thermal conductivity of dirty carbon is low, thermal resistance is increased, cause heat transfer deterioration easily.Thereby adsorber adopts the fire tube structure, and heat-transfer pipe adopts the manufacturing of strong corrosion resistant nickel alloy, has high speed flue gas stream to purge in the pipe, and in conjunction with the adsorber time-based maintenance, tube wall knot carbon can be effectively controlled.The pipeline of adsorption refrigeration system switches by machinery, electric apparatus to be finished automatically.Use the damping technology of various maturations in the system, good insulation measure is all taked at positions such as evaporator, regenerator, chilled water connecting line, to reduce loss of refrigeration capacity effectively.
Adsorbed air contioner for driver's cab of diesel locomotive of the present invention owing to be under the driving of diesel locomotive exhaust heat, is realized refrigeration with locomotive wind surface cooling adsorber and condenser; Compare by traditional refrigeration modes that inverter drives refrigerating compressor with the electric power of exporting by the locomotive electrical generator, saved the consumption of diesel oil, improved the locomotive rate of energy; It is simple with control to have structure simultaneously, and initial investment is few, and over-the-road expense is low, long service life, advantages such as noiselessness.Absorption type refrigerating A/C so that molecular sieve-water conservancy project is verified can utilize low grade heat energy by actv., and non-environmental-pollution is a kind of green energy conservation type A/C.
Below in conjunction with accompanying drawing, the present invention is further described:
Fig. 1 is a structural representation of the present invention.
Adsorbed air contioner for driver's cab of diesel locomotive comprises adsorber 1, condenser 2, reservoir 3, anti-return U type pipe 4, vacuum valve 5 (totally three), evaporator 6, regenerator 7, air-flow shifter 8, fan coil 9, pressure equalizing pipe 10, pump 11 and finned tube exchanger 12, air-flow shifter 8 is connected with adsorber 1, adsorber 1 is connected with condenser 2 by pipeline, condenser 2 is connected with evaporator 6 by pipeline, evaporator 6 links to each other with fan coil 9 by finned tube exchanger 12, regenerator 7 links to each other with evaporator 6 by pipeline, and evaporator 6 links to each other with adsorber 1 by pipeline.Consider the particularity of locomotive operation to requirements such as the safety of system, reliability, maintainability, manufacturabilities, adsorber 1 selects for use molecular sieve-water right as refrigeration working medium, and molecular sieve is an adsorbent, and water is refrigerant.This refrigeration working medium is right, and desorption temperature is applicable to the high-temperature exhaust air afterheat driven of diesel locomotive up to 200～300 ℃.Condensing temperature is 50～80 ℃, the wind surface direct quenching in the time of fully can be by locomotive driving; When the locomotive stagnation of movement, adsorber 1 then utilizes blower fan that adsorber is carried out forced cooling if be in absorption phase.Adsorber adopts shell-and-tube heat exchanger, and flue gas or air pass through in pipe, and the molecular sieve of filler particles shape leaves the refrigerant vapor passage between the fin of the pipe outside in adsorber, to strengthen mass transfer effect.Condenser adopts the air cooling type heat exchanger, gives condensation with locomotive high speed wind surface, and the heat that is discharged when refrigerant vapour condenses is by the wind surface exhaust to atmosphere.Evaporator 6 and regenerator 7 are integrated, compact conformation, and installing space is little.Its in-to-in water is both as refrigerant, again as cool storage medium, utilizes the forced convection of water between evaporator 6 and the regenerator 7 to realize putting coldly to the cold-peace of filling of regenerator 7, reaches the cold-storage and the external purpose of cooling.Separate with orifice plate evaporator 6 and regenerator 7 inside, outside with micro pump of anti-return U type pipe 4 connection parallel seriess.Fluid column in the anti-return U type pipe 4 can be offset the difference of pressure between evaporator 6 and the regenerator 7, micro pump can be sent to evaporator 6 from regenerator 7 with the chilled water of low temperature, when micro pump quit work, the chilled water in the evaporator 6 can not be back to regenerator 7 again automatically.Heat exchanger in the evaporator 6 is a finned tube exchanger 12, is immersed in the refrigerant, adopts the indirect heat exchange mode between the chilled water in finned tube exchanger 12 pipes and the refrigerant in the outside, and the possibility that can reduce to leak is moved system under good vacuum state.Adsorber is in absorption phase, and the pipeline between evaporator 6 and the adsorber 1 can guarantee that the refrigerant vapour in the evaporator 6 can successfully enter adsorber 1 under the control of vacuum valve 5.Pressure equalizing pipe 10 between evaporator 6 and the regenerator 7 both can be kept equilibrium of pressure under the automatic guidance of vacuum valve 5, adsorber is fully adsorbed, to increase refrigerating capacity.
Claims (6)
1, device is transferred in the empty absorption type of a kind of diesel locomotive driver chamber, comprise adsorber (1), condenser (2), reservoir (3), anti-return U type pipe (4), vacuum valve (5), evaporator (6), regenerator (7), air-flow shifter (8), fan coil (9), pressure equalizing pipe (10), pump (11) and finned tube exchanger (12), air-flow shifter (8) is connected with adsorber (1), adsorber (1) is connected with condenser (2) by pipeline, condenser (2) is connected with evaporator (6) by pipeline, evaporator (6) links to each other with fan coil (9) by finned tube exchanger, evaporator (6) is connected with adsorber (1) by pipeline, it is characterized in that also comprising a regenerator (7), regenerator (7) passes through pipeline, orifice plate is connected with evaporator (6).
2, adsorbed air contioner for driver's cab of diesel locomotive according to claim 1, its feature also are refrigeration working medium in the adsorber (1) to for molecular sieve-water, and molecular sieve is an adsorbent, and water is refrigerant.
3, adsorbed air contioner for driver's cab of diesel locomotive according to claim 1, its feature are that also regenerator (7) and evaporator (6) are integrated, and separate with orifice plate inside.
4, adsorbed air contioner for driver's cab of diesel locomotive according to claim 1, its feature are that also evaporator (6) and the outside anti-return U type pipe (4) of using of regenerator (7) are communicated with.
5, adsorbed air contioner for driver's cab of diesel locomotive according to claim 1, its feature also are to be connected a pressure equalizing pipe (10) between evaporator (6) and the regenerator (7).
6, adsorbed air contioner for driver's cab of diesel locomotive according to claim 1, its feature are that also adsorber is the fire-tube type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00127965A CN1098779C (en) | 2000-12-21 | 2000-12-21 | Adsorbed air contioner for driver's cab of diesel locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00127965A CN1098779C (en) | 2000-12-21 | 2000-12-21 | Adsorbed air contioner for driver's cab of diesel locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1294989A CN1294989A (en) | 2001-05-16 |
| CN1098779C true CN1098779C (en) | 2003-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN00127965A Expired - Fee Related CN1098779C (en) | 2000-12-21 | 2000-12-21 | Adsorbed air contioner for driver's cab of diesel locomotive |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777582A (en) * | 2012-08-20 | 2012-11-14 | 中国重汽集团济南动力有限公司 | Cooling system of automatic transmission |
| CN104676945B (en) * | 2015-02-13 | 2017-01-11 | 福建工程学院 | Vehicle exhaust afterheat utilization-based adsorption air conditioning device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4007776A (en) * | 1974-12-23 | 1977-02-15 | Universal Oil Products Company | Heating and cooling system utilizing solar energy |
| CN1050927A (en) * | 1989-10-11 | 1991-04-24 | 华东工学院 | Utilize the adsorption refrigerating device of utilizing waste heat for refrigeration |
| JPH05296641A (en) * | 1990-12-26 | 1993-11-09 | Mitsubishi Juko Reinetsu Service Kk | Freeze-cold storage refrigerator with cold-heat accumulator |
| CN2161874Y (en) * | 1993-05-15 | 1994-04-13 | 王惠林 | Adsorption type refrigeration machine |
-
2000
- 2000-12-21 CN CN00127965A patent/CN1098779C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4007776A (en) * | 1974-12-23 | 1977-02-15 | Universal Oil Products Company | Heating and cooling system utilizing solar energy |
| CN1050927A (en) * | 1989-10-11 | 1991-04-24 | 华东工学院 | Utilize the adsorption refrigerating device of utilizing waste heat for refrigeration |
| JPH05296641A (en) * | 1990-12-26 | 1993-11-09 | Mitsubishi Juko Reinetsu Service Kk | Freeze-cold storage refrigerator with cold-heat accumulator |
| CN2161874Y (en) * | 1993-05-15 | 1994-04-13 | 王惠林 | Adsorption type refrigeration machine |
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| CN1294989A (en) | 2001-05-16 |
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