CN2601872Y - Residual heat actuating vehicle-carrying air-conditioning and drinking machine assembly system - Google Patents

Abstract

The utility model relates to a vehicle air conditioner actuated by the residual heat of an engine, which belongs to a refrigeration system formed by organically and integrally combining an ammonia absorption refrigeration system and an ammonia absorption-diffusion type refrigeration system. The system can not be only used as a vehicle air conditioner, but also can provide low temperature for a chill box. In addition, a water heater 4 is arranged in the system. The system is operated via the heat source of a generator 1 provided by a circulating water 2. The ammonia steam generated by 1 enters a condenser 5 after rectified by 4, wherein one path is evaporated for refrigeration in an evaporator 9 after pressure release through a thermoelectric expansion valve 11, and the other path enters a 10 for evaporating and diffusing to hydrogen gas to generate lower temperature after pressure release and expansion through an 18. The evaporated gas is absorbed by the same absorber 11.

Description

Afterheat driven type on-board air conditioner and water dispenser package system

Technical field

The utility model relates to the comprehensive development and utilization of automotive residual heat, and the ammonia absorption type of heat driving freezes and diffusion---the organic assembling body of absorption refrigeration two cover systems, wherein two cover systems are assembled into indivisible a whole set of system with complementing each other.

Background technology

Along with strengthening day by day and national promotion energetically of human environmental consciousness, the exploitation dynamics and the promotion rate of environment-friendly products also strengthen day by day, accelerate.Existing air conditioning for automobiles receives much attention in the face of eliminating the in straitened circumstances of the dichlorodifluromethane that pollutes the atmosphere, the eco-friendly car air-conditioning that with the engine exhaust heat is driven by energy is also among fermenting, by just finding many design plans in the middle of the disclosed information of Patent Office,, also do not have really to implement and success promotes.It is not mature enough that one of reason is exactly these conceptual designs, in other words, has deficiency or defective with regard to a certain scheme, implements and popularization thereby hindered.For example, notification number is that 1223369 invention design just exists system will keep the difficult problem of vacuum for a long time in the environment of vibrations, also promisingly prevent the LiBr crystallization and complicated control problem, these problems can not be resolved in space limited on the automobile of operation and vibrations.Some ammonia-water diffusion type refrigeration system is used for air-conditioning for another example, though according to having or not the free of contamination advantage of mechanical movement noiselessness, but fatal shortcoming is arranged also: can not the quick adjustment refrigerating capacity with reply rapid-varying thermal load, also have, the evaporating temperature of its evaporator can not be controlled in the desired evaporating temperature scope of air conditioning condition effectively, at the particular case of air conditioning for automobiles and the characteristics of luxury goods, so this type systematic is not desirable selection.

Summary of the invention

A whole set of system provided by the utility model has thoroughly solved an above-mentioned difficult problem.Compare with lithium bromide absorption chiller system, there is not the problem of crystallization in it and keeps the problem of system vacuum, has saved expensive real estate and great amount of cost thus; And compare with ammonia-water diffusion type refrigeration system, not only can make things convenient for, fast control and regulate refrigerating capacity freely, to guarantee guaranteeing that under the situation that thermal load changes vehicle interior temperature is constant, and, the evaporating temperature of its evaporator can be regulated to be more suitable for air conditioning condition, with satisfy different customers to the particularly requirement of evaporating temperature different levels of air conditioning condition, and obtain the air-conditioning wind of different qualities, to satisfy the requirement of user individual, this function also is the feature that native system is different from other a/c systemes, is exclusive function and advantage.In addition, present design is also set up a cover cryogenic refrigerating system, the low temperature that can form-18 degree can be used as deep freezer and uses, can select according to dissimilar users to use, when the user does not have the low temperature demand and just water dispenser just needn't be installed the diffuser pipeline that causes low temperature and only the frozen water evaporator of evaporator 10 as water dispenser, simultaneously at the water heater of choosing dress with water dispenser.

Concrete Fang Han is as shown in the figure: engine water tank is changed into the producer of heat exchanger 1 as native system, give working medium-ammonia spirit heating in the producer by cycle of engine water by coil pipe 2, produce ammonia steam, temperature about 90 degree.Above the steam (vapor) outlet 3 of producer, be provided with water dispenser hot water heater 4, when steam thus by the time while obtaining rectifying to heating by hot water, can guarantee in 85 °-96 ℃ of hot water temperatures' the scope that can satisfy infuses tea requires etc.Entering condenser 5 through the higher steam of purity after the rectification and purification through electromagnetic valve 17 is condensed into ammoniacal liquor and enters reservoir 8.Then, enter the purpose that A/C evaporator 9 sweat coolings are realized air-conditioning after the bloated valve 19 step-down throttlings of thermoelectric Peng of ammoniacal liquor process.Another road, sweat cooling provides cold water for water dispenser to ammoniacal liquor in the evaporator 10 through entering behind the thermoelectric valve 18, and the gas after the evaporation is absorbed by resorber 11.When not adorning water dispenser, then select 10 to be refrigerating container evaporator when choosing dress deep freezer in the car.According to the low temperature requirement of deep freezer, ad hoc meter has been installed ammonia hydrogen diffusion system as shown in the figure: storage hydrogen device 27, hydrogen collecting apparatus 25 and corresponding connecting tube system thereof.25 are installed on the highest point of resorber 11, so that be collected into 27 li of storage hydrogen devices when all are dissolved in hydrogen in the solution by resorber.In addition, by the liquefied ammonia after thermoelectric valve 18 decompressional expansions wherein the diffusion of vapor that produces of a part of boiling in hydrogen, and another part liquefied ammonia continues diffusive evaporation in hydrogen, has produced-18 ℃ of low temperature thereby absorb heat, can produce lower temperature as required.

Compare with other system, the native system biggest advantage is more can develop waste heat fully, produces more valuable cold and heat for the user provides abundanter low-temperature receiver and thermal source, has improved the afterheat utilization rate; Second largest advantage is that it can control the cycle of engine coolant-temperature gage effectively in optimum range, guarantees that driving engine moves in the best condition; The 3rd: it has very strong market adaptability, can select the different system that adorns according to client's different needs, also is one of its advantage so can obtain broader applications with promoting this.

Description of drawings

Be accompanying drawing and specifying native system in conjunction with the accompanying drawings below:

Accompanying drawing 1 is a general system diagram, and accompanying drawing 2 is exploded drawingss of thermal control choke valve 26.

The specific embodiment

The utility model is implemented in the following manner:

Importing cooling vessel 6 and 7 through the weak solution behind producer 1 heating evaporation respectively by conduit cools, enter liquid injector 12 by 7 cooled liquid, boost through 12 the pipe that boosts at last and enter reservoir 13, and 12 relatively low pressure one end is connected with resorber 11 bottoms, so that the coned sol that 11 row become is taken away, and is maintained 11 low pressure.Pump into producer 1 after 13 li mixed coned sols of reservoir are boosted by ammonia pump 14 and finish a circulation; Through the weak solution of cooling vessel 6 after flow regulating valve 20 step-downs by shower 24 disposable spray in resorber 11, become fine mist to be beneficial to improve assimilation effect.

Coil pipe 23 within the resorber 11 is cooling coil pipes, and it provides the refrigerant refrigeration cool-down by storage ammonia device 8 fairleads through thermoelectric valve 21 throttlings, and it at first absorbs the heat that is produced by ammonia around the liquid absorption that sprays its outer wall.In addition, thereby the temperature of the aperture scalable resorber 11 by microcomputerized control valve 21 has been regulated 11 pressure that is 9 and 10 evaporating pressure, thus, evaporator 9 and 10 evaporating temperature can be controlled and regulate effectively, and the air-conditioning wind that can select different evaporating temperatures and different qualities is with the requirement of the personalization of satisfying the user.When pump 14 operation balances are constant, by regulating the pressure that 11 pressure is regulated the pressure of reservoir 13 thereafter too and then regulated producer 1.When producer 1 pressure change that is changed the temperature of 1 saturation conditions, the temperature that just can regulate circulating water by heat exchange coil 2.To guarantee that the engine cooling circulating water temperature preferably remains in 80 ℃-90 ℃ of the optimum temperatures with interior in safe range.Equally, when air-conditioning and refrigerator were all closed, for keeping circulating water temperature constant, at this moment micro computer was just opened the power supply of bypass thermoelectric valve 22.Be loaded on the exit of cycle of engine water with the thermally dependent resistors of 22 couplings, the temperature of sensing circulating water, it controls the aperture of thermoelectric valve 22 according to circulating water temperature.Naturally just dwindled by the pressure reduction of producer 1 to reservoir 13 when 22 apertures strengthen, the absolute pressure of natural native system high-pressure side producer 1 has diminished, the also corresponding step-down of its saturation temperature.Same reason cycle of engine coolant-temperature gage is also turned down accordingly.For keeping circulating water temperature in 80 ℃ of-90 ℃ of scopes, ad hocly decide micro computer and open 22 unlatching temperature and be: when air-conditioning, refrigerator contract fully or under the heat supply in winter condition of closing is 86 ℃, unconditionally open-minded when temperature exceeds 98 ℃ for preventing that circulating water temperature from exceeding safe level.An important principle of present design is to guarantee that circulating water temperature moves in ideal range and driving engine turns round under optimum Working.

For guaranteeing that producer 1 normally moves, steam outlet is provided with blocking solution ball cock 3 at an upper portion thereof, for preventing that mixed liquor from entering condenser 5 and polluting and establish, principle is: just to have started after condenser 5 pressure very low when driving engine, be lower than 1 pressure, constantly rise in producer position at interior night, last ball cock 3 is at liquid buoyancy effect float downward valve-off.Along with the top of the increase producer of temperature has produced steam, the ball float of valve 3 slowly breaks away from liquid, and buoyancy is more and more littler, and ball float is at self gravitation and fall open valve up and down under the combined action of difference of pressure at last and make gas enter 4 to arrive condenser 5 again.In addition, cause liquid level to descend when too high or thermoelectric valve 22 is opened when generator temperature, when liquid level when lower limit A taps, the inlet of steam guiding tube 15 exposes liquid level steam and enters and manage 15.Because steam is much smaller than resistance to flow and potential pressure reduction with liquid phase, so steam is imported into cooling vessel 7 very soon, very fast quilt wherein weak solution absorbs in pipe 15.Flow out after cooling, liquid level has kept balance in the producer 1.When ging up along with the variation liquid level repeatedly of system condition, the inlet of pipe 15 is sealed by liquid level, the A of liquid filling pipe 15 holds the C place because A to the very short flow resistance pressure reduction of B point liquid line distance less than the A point to B point liquid level difference, be prevented from so liquid height can not reach the C point.In addition, steam Duan Buhui shortens in the pipe 15, because the liquid by A point one end heat directly over producer rises and replenishes the steam section to the gas heating of steam section and the initial steam that volatilizees, offset near the B point one end absorbed steam that cools, make the steam section keep balance, guaranteed that coned sol that A is ordered is intercepted not detached.Guaranteed that in a word producer moves normally.

Double refrigerator refrigeration and the drinking hot water state of providing of heating is provided into for the temperature information parameter that micro computer provides according to temperature-sensing probe in the car during heat supply in winter, automatic guidance native system: turn-off the power supply of thermoelectric valve 19, open electromagnetic valve 16.The vapours that is produced by producer enters evaporator 9 by valve 16, directly for warm air is provided in the car, has improved the evaporator utilization ratio by air-conditioning fan.9 just are equivalent to a radiator, and its discharge orifice is provided with thermal control resistance steam valve 26 and is loaded on 11 top.Please refer to Fig. 2, its inside is to connect a float valve 30 by two memorial alloy spirals of thickness spring 28, and the top of housing is fixed on its top.The valve seat of float valve 30 is free on the valve body on the shell base just, when temperature was shut base valve under spring 28 effects in time more than 50 ℃, valve 26 this moment resistance vapour delivery valve has just guaranteed that the condensed fluid that radiator 9 produced discharges and stoped the discharge of ammonia vapour.Ammoniacal liquor enters resorber 11 back spray liquids by 24 and dilutes, and then, enters circulation again.Guaranteed that the heating on-cycle normally moves.When air-conditioning was opened, temperature was below 50 ℃, and the valve seat of float valve 30 is opened base valve under spring 28 effects, and at this moment, the ammonia steam that is produced by evaporator 9 evaporations enters resorber 11 by valve 26 smoothly, does not influence air-conditioning and normally moves.

Valve 17 open and close common control by air-conditioning temperature control and freezer temperature control, when one of them is opened, just open, only be subjected to the control of freezer temperature control during heat supply in winter.For guaranteeing of the effective utilization of the stable and heat supply in winter of cycle of engine coolant-temperature gage, ad hocly decide cooling fan and be lower than 80 in temperature and open when spending and work as temperature and be higher than 90 ℃ and close the circulating water heat.

Claims (6)

1. afterheat driven type on-board air conditioner and water dispenser package system, its producer (1) is by the automobile engine residual heat afterheat driven, rectification column (4), condenser (5), storage ammonia device (8), expansion valve (18 or 19), evaporator (9 or 10), resorber (11), reservoir (13), aqua ammonia pump (14) is linked in sequence, and it is characterized in that: deepfreeze evaporator (10), storage hydrogen device (27), the ammonia hydrogen diffusion type refrigeration system formed of collection hydrogen device (25) connects the shared cover aqua-ammonia absorption system in back with A/C evaporator (9) and example, be connected on the drain pipe that stores up ammonia device (8) after the preceding feed pipe of the preceding feed pipe of its feed flow expansion valve (18) and air-conditioning expansion valve (19) is connected; Thereafter gas piping is connected on the resorber (23), and with the shared resorber of A/C evaporator (9) (23), and collection hydrogen device (25) is designed to one with resorber (23).

2. afterheat driven type on-board air conditioner according to claim 1 and water fountain system is characterized in that: be provided with a liquid injector (12) between cooling vessel (7) and reservoir (13), the negative pressure pipe of injector is connected with resorber (11) bottom.

3. afterheat driven type on-board air conditioner according to claim 1 and water dispenser package system, it is characterized in that: between cooling vessel (6) and reservoir (13), add bypass regulator valve (22), regulate the pressure and temperature of producer (1) by the aperture of control cock (22).

4. afterheat driven type on-board air conditioner according to claim 1 and water dispenser package system is characterized in that: be provided with pepe coil type evaporator (23) in receiving device (11).

5. afterheat driven type on-board air conditioner according to claim 1 and water dispenser package system is characterized in that: the fine stiller of producer (1) top is designed to the water heater shape, gives the heating by hot water of water dispenser.

6. afterheat driven type on-board air conditioner according to claim 1 and water dispenser package system, it is characterized in that: be provided with thermal control resistance vapour delivery valve (26) at A/C evaporator (9) steam transmitting pipe and resorber junction, and the unlatching temperature of float valve (30) is＜50 ℃, and the closing temperature of float valve (30) is 〉=50 ℃.

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