CN103743151A - Automobile waste heat recovering parking air-conditioner based on absorption type refrigerating and working method thereof - Google Patents

Abstract

The invention provides a car waste heat recovery parking air conditioner based on adsorption refrigeration. A chemical adsorbent is arranged in a solid-gas chemical reaction adsorption bed, and a heat exchange coil of the adsorption bed is arranged in the solid-gas chemical reaction adsorption bed. The inlet end of the coil collects the heat of automobile exhaust, and the outlet end of the heat exchange coil of the adsorption bed is connected to the exhaust pipe of the automobile; the solid-gas chemical reaction adsorption bed is in bidirectional communication with the refrigerant liquid receiver through pipeline III; the phase change material storage and the heat exchange tube coil are arranged in the refrigerant liquid storage, and the outlet end and the inlet port of the phase change material storage and the heat exchange tube coil are respectively connected with the car body; meanwhile, the working method thereof is provided. Under the driving condition of the vehicle, the heat of the exhaust gas of the vehicle is used to generate cold energy through the adsorption refrigeration cycle and store it in the phase change material. Working in the parking state, without consuming the original energy in the car, the cooling capacity stored in the phase change material is used for refrigeration and air conditioning, and the temperature in the car is adjusted within the comfortable range.

Description

Vehicle waste heat recovery parking air conditioner based on adsorption refrigeration and its working method

technical field

The invention relates to a device in the technical field of adsorption refrigeration utilization, in particular to an adsorption refrigeration-based automobile waste heat recovery parking air conditioner and a working method thereof.

Background technique

With the improvement of people's living standards, cars have gradually become necessities of life, and people's requirements for car comfort have also been greatly improved. Comfortable and energy-saving air-conditioning systems are one of the important requirements.

The current automobile air conditioner mainly adopts compressor refrigeration, and its energy comes from the drive of internal combustion engine, which consumes extra energy. At the same time, after years of technological updates and improvements, the refrigerant still cannot guarantee that its refrigerant will not damage the ozone layer. Both energy saving and environmental protection have relatively large disadvantages.

Adsorption refrigeration has the characteristics of zero ODP and zero GWP, and can take advantage of the advantages of low-grade heat sources. It is a vigorously developing refrigeration method in the new century. Although it is not yet mature in technology, it has already stepped out of the laboratory and become a refrigeration technology with great practical significance. At present, the automobile air conditioner adopts the vapor compression refrigeration system, which is driven by the shaft power of the engine to provide comfortable air conditioning. The cost is to increase energy consumption and increase air pollution. However, the heat source of the adsorption refrigeration automobile air conditioner is mainly the waste heat of the engine, including automobile cooling. Water waste heat, as well as vehicle exhaust waste heat, is a huge resource that can be utilized. At present, the refrigeration equipment that drives vehicles, trains, ships and other means of transportation needs to consume additional fuel, and the engine exhaust and engine cooling medium of these means of transportation can generate a lot of waste heat. The adsorption refrigeration system is driven by waste heat, does not require additional energy, has a simple structure and good shock resistance, and is especially suitable for refrigeration in transportation vehicles such as automobiles, trains, and ships.

However, automobile waste heat is a low-density energy that changes with time, and has the characteristics of intermittent and unstable. In order to realize the wide application of adsorption parking air conditioners, the efficient energy storage technology of automobile waste heat is implemented to improve the efficiency of energy recovery and utilization. It is a necessary means to solve the contradiction between intermittent, unstable and energy supply and demand time difference. At present, thermal energy storage methods mainly include sensible heat storage and latent heat storage. Among them, the sensible heat storage technology is simple and easy to operate and manage, but the low energy storage density makes the heat storage device bulky. In addition, the sensible heat storage method is adopted The energy storage device has the disadvantage of large output temperature fluctuations during the energy release process. Latent heat energy storage uses phase change materials to realize energy storage. Its energy storage density is high, and the heat storage and heat release processes are approximately isothermal, which is easy to match the system operation and can store refrigeration and cooling capacity.

Especially after a long period of outdoor parking in summer, the temperature inside the car is high. Under the existing vehicle air conditioner conditions, the required cooling time is longer, the energy consumption is larger, and the user's comfort experience is seriously affected. The above problems, the existing domestic and foreign data all do not propose a solution.

According to literature search of the prior art, there is no patent for a parking air-conditioning device that utilizes the waste heat of automobiles to refrigerate and stores the refrigerated cooling capacity by using chemical adsorption technology.

Contents of the invention

Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a car waste heat recovery parking air conditioner based on adsorption refrigeration and its working method. In the case of some energy systems, by using the waste heat when the vehicle is running to perform refrigeration work and refrigeration system control, and store the cooling capacity, the temperature in the car can be kept within a comfortable range when the car is parked in the sun. At the same time, no After the car is started, the original air conditioning system is activated for heat dissipation, which achieves the purpose of improving user comfort experience and saving energy.

The present invention is achieved through the following technical solutions.

According to one aspect of the present invention, a car waste heat recovery parking air conditioner based on adsorption refrigeration is provided, including a solid-gas chemical reaction adsorption bed, an adsorption bed heat exchange coil, a refrigerant liquid reservoir, a phase change material storage and a heat exchange The tube tray, wherein, the inside of the solid-gas chemical reaction adsorption bed is provided with chemical adsorbent, the heat exchange coil of the adsorption bed is arranged inside the solid-gas chemical reaction adsorption bed, and the inlet end of the adsorption bed heat exchange coil passes through Pipeline I collects the heat of automobile exhaust, and the outlet end of the heat exchange coil of the adsorption bed is connected to the exhaust pipe of the automobile through pipeline II to form a flow loop of the air-conditioning heat transfer fluid; the solid-gas chemical reaction adsorption bed passes through pipeline III Two-way communication with the refrigerant liquid receiver constitutes a refrigerant two-way flow loop, so that the refrigerant desorbed in the solid-gas chemical reaction adsorption bed flows in both directions between the solid-gas chemical reaction adsorption bed and the refrigerant liquid receiver; The phase change material storage and the heat exchange tube coil are arranged inside the refrigerant liquid receiver, and the outlet end and the inlet end of the phase change material storage and the heat exchange tube coil are respectively connected to the car body through the pipeline IV and the pipeline V The flow loop of the heat transfer fluid at the cold user end is formed.

Preferably, the pipeline I is located outside the solid-gas chemical reaction adsorption bed, and the pipeline I is provided with an automobile exhaust regulating valve.

Preferably, the pipeline III is provided with a refrigerant regulating valve.

Preferably, the pipeline IV is located outside the refrigerant accumulator, and the pipeline IV is provided with a cooling capacity regulating valve.

Preferably, the pipeline V is located outside the refrigerant accumulator, and the pipeline V is provided with an air circulation pump.

Preferably, the adsorption-type refrigeration-based automobile waste heat recovery parking air conditioner also includes an exhaust gas collector connected to the inlet end of the pipeline I.

According to another aspect of the present invention, there is provided the above-mentioned working method of the above-mentioned adsorption refrigeration-based automobile waste heat recovery parking air conditioner, which includes the following three stages:

The first stage, the thermal energy storage stage of automobile exhaust gas: during the operation of the automobile, the heat obtained by the flow loop of the heat transfer fluid of the air conditioner is used to provide the desorption heat for the chemical adsorbent in the solid-gas chemical reaction adsorption bed, so that the chemical adsorbent The chemical decomposition reaction realizes the conversion and storage of exhaust gas heat energy to chemical adsorption potential energy, and the desorbed refrigerant vapor enters the refrigerant liquid receiver to condense into a liquid for storage, thereby realizing the conversion and storage of automobile exhaust gas heat energy;

The second stage, the storage stage of automobile refrigeration cold capacity: the automobile tail gas regulating valve is closed, the temperature of the solid-gas chemical reaction adsorption bed drops, and the chemical synthesis reaction occurs between the chemical adsorbent in the solid-gas chemical reaction adsorption bed and the refrigerant in the refrigerant liquid receiver , using the refrigerant in the refrigerant liquid receiver to evaporate at low temperature and low pressure to absorb heat from the outside, and store the cooling capacity in the phase change material through the phase change material storage and heat exchange tube disk, so as to realize the cooling of the cold user end cold storage;

The third stage, cooling capacity release stage: After the car stops working, the cooling capacity regulating valve opens to release the cooling capacity, thereby realizing the cooling when the car is parked.

Compared with the prior art, the present invention has the following technical characteristics:

First, high energy storage density: Compared with traditional sensible heat and latent heat energy storage devices, the present invention uses chemical adsorption potential energy to realize energy conversion and storage, and its energy storage density is high, thereby reducing equipment volume and energy storage costs ;

Second, the storage energy loss is small, and it is easy to store for a long time: the traditional energy storage device has a large temperature difference with the external environment, so there is a large energy loss in the energy storage process, while the present invention adopts thermochemical adsorption energy storage technology, as long as refrigeration The agent is separated from the chemical adsorption energy storage material without chemical reaction, the energy will be stored all the time and does not need to consume energy to maintain, so it is convenient for long-term storage;

Third, the temperature fluctuation during the energy release process is small: due to the univariate characteristics of the solid-gas chemical reaction, during the release stage of the heat energy and cooling capacity of the automobile exhaust, the energy output temperature fluctuation is small, which is approximately an isothermal process, and it is easy to match the system operation;

Fourth, the entire system is made of standard components used in adsorption refrigeration workbenches except for the adsorption bed. The design requirements are relatively simplified, and it is also conducive to mass production and market promotion.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a thermodynamic cycle diagram of the present invention;

In the figure: 1 is the automobile exhaust regulating valve, 2 is the solid-gas chemical reaction adsorption bed, 3 is the refrigerant regulating valve, 4 is the heat exchange coil of the adsorption bed, 5 is the chemical adsorbent, 6 is the refrigerant liquid receiver, 7 Refrigerant, 8 is a phase change material storage and heat exchange tube coil, 9 is a cooling capacity regulating valve, 10 is a car body, and 11 is an air flow circulation pump.

Detailed ways

The following is a detailed description of the embodiments of the present invention: this embodiment is implemented on the premise of the technical solution of the present invention, and provides detailed implementation methods and specific operation processes. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

As shown in Figure 1, this embodiment provides a car waste heat recovery parking air conditioner based on adsorption refrigeration, including a solid-gas chemical reaction adsorption bed, an adsorption bed heat exchange coil, a refrigerant liquid storage device, and a phase change material storage device. The heat exchange tube coil, wherein, the interior of the solid-gas chemical reaction adsorption bed is provided with a chemical adsorbent, the adsorption bed heat exchange coil is arranged inside the solid-gas chemical reaction adsorption bed, and the inlet of the adsorption bed heat exchange coil The exhaust gas of the automobile is collected through the pipeline I, and the outlet end of the heat exchange coil of the adsorption bed is connected with the exhaust pipe of the automobile through the pipeline II; the solid-gas chemical reaction adsorption bed is bidirectionally connected with the refrigerant liquid receiver through the pipeline III The phase-change material storage and the heat exchange tube coil are arranged inside the refrigerant liquid receiver, and the outlet end and the inlet port of the phase change material storage and the heat exchange tube coil are respectively connected to the car body through the pipeline IV and the pipeline V. Connected;

The outlet of the pipeline I is connected to the inlet of the heat exchange coil of the adsorption bed, and the outlet of the heat exchange coil of the adsorption bed is connected to the exhaust pipe of the automobile through the pipeline II, thereby forming an air-conditioning heat transfer fluid flow loop; The phase change material storage and the heat exchange tube disk, the pipeline IV, the car body, the pipeline V and the phase change material storage and the heat exchange tube disk are connected in sequence to form a cold user end heat transfer fluid flow loop; the solid gas The chemical reaction adsorption bed, pipeline III and the refrigerant liquid receiver are connected in sequence to form a two-way refrigerant flow loop, so that the refrigerant desorbed in the solid-gas chemical reaction adsorption bed is transferred between the solid-gas chemical reaction adsorption bed and the refrigerant Bi-directional flow between reservoirs.

Further, the pipeline I is located outside the solid-gas chemical reaction adsorption bed, and the pipeline I is provided with an automobile exhaust regulating valve.

Further, the pipeline III is provided with a refrigerant regulating valve.

Further, the pipeline IV is located outside the refrigerant accumulator, and the pipeline IV is provided with a cooling capacity regulating valve.

Further, the pipeline V is located outside the refrigerant accumulator, and the pipeline V is provided with an air circulation pump.

Further, a tail gas heat collector is also included, and the tail gas heat collector is connected to the inlet end of the pipeline I.

As shown in Fig. 2, the car waste heat recovery parking air conditioner based on adsorption refrigeration provided in this embodiment, its working method includes the following three stages:

The first stage, the thermal energy storage stage of automobile exhaust gas: during the operation of the automobile, the heat obtained by the flow loop of the heat transfer fluid of the air conditioner is used to provide the desorption heat for the chemical adsorbent in the solid-gas chemical reaction adsorption bed, so that the chemical adsorbent The chemical decomposition reaction realizes the conversion and storage of exhaust gas heat energy to chemical adsorption potential energy, and the desorbed refrigerant vapor enters the refrigerant liquid receiver to condense into a liquid for storage, thereby realizing the conversion and storage of automobile exhaust gas heat energy;

The second stage, the storage stage of automobile refrigeration cold capacity: the automobile tail gas regulating valve is closed, the temperature of the solid-gas chemical reaction adsorption bed drops, and the chemical synthesis reaction occurs between the chemical adsorbent in the solid-gas chemical reaction adsorption bed and the refrigerant in the refrigerant liquid receiver , using the refrigerant in the refrigerant liquid receiver to evaporate at low temperature and low pressure to absorb heat from the outside, and store the cooling capacity in the phase change material through the phase change material storage and heat exchange tube disk, so as to realize the cooling of the cold user end cold storage;

The third stage, cooling capacity release stage: After the car stops working, the cooling capacity regulating valve opens to release the cooling capacity, thereby realizing the cooling when the car is parked.

This embodiment is specifically:

The car waste heat recovery parking air conditioner based on adsorption refrigeration provided in this embodiment includes: a car exhaust control valve 1, a solid-gas chemical reaction adsorption bed 2, a refrigerant control valve 3, an adsorption bed heat exchange coil 4, and a chemical adsorbent 5 , Refrigerant accumulator 6, refrigerant 7, phase change material storage and heat exchange tube plate 8, cooling capacity regulating valve 9, automobile body 10 and air circulation pump 11.

Among them: the outlet of the automobile exhaust regulating valve 1 is connected to the inlet of the adsorption bed heat exchange coil 4; the outlet of the adsorption bed heat exchange coil 4 is connected to the exhaust pipe of the automobile; the outlet of the solid gas chemical reaction adsorption bed 2 is connected to the The inlet of the regulating valve 3 is connected, the outlet of the refrigerant regulating valve 3 is connected with the inlet of the refrigerant liquid receiver 6, the solid-gas chemical reaction adsorption bed 2 is provided with an adsorption bed heat exchange coil 4, and the chemical adsorbent 5 is filled in In the solid-gas chemical reaction adsorption bed 2, the refrigerant liquid storage device 6 is provided with a phase change material storage and a heat exchange tube plate 8, and the refrigerant 7 is filled in the refrigerant liquid storage device 6; the phase change material storage device and the heat exchange The outlet of the pipe coil 8 is connected with the inlet of the cooling capacity regulating valve 9 , the outlet of the cooling capacity regulating valve 9 is connected with the inlet of the automobile body 10 , and the outlet of the automobile body 10 is connected with the air circulation pump 11 .

The flow direction of the refrigerant is bi-directional. In the stage of heating the adsorption bed by the exhaust gas of the automobile, the refrigerant 7 flows through the solid-gas chemical reaction adsorption bed 2, the refrigerant regulating valve 3 and the refrigerant liquid receiver 6 in sequence; In the cooling stage, the refrigerant 7 flows through the refrigerant liquid receiver 6 , the refrigerant regulating valve 3 and the solid-gas chemical reaction adsorption bed 2 in sequence.

The combination of the automobile tail gas regulating valve 1 and the solid-gas chemical reaction adsorption bed 2 constitutes the heat transfer fluid flow of the solid chemical reaction adsorption bed.

The refrigerant liquid receiver 6, the phase change material storage and the heat exchange tube plate 8, the cooling capacity regulating valve 9, the car body 10 and the air flow circulation pump 11 are connected in sequence to form a heat transfer fluid flow loop at the cooling end .

In the stage of thermal energy storage of automobile exhaust gas, the energy is transferred from the heat exchange coil of the adsorption bed to the solid chemical reaction adsorption bed, and the energy storage is realized by converting the thermal energy of automobile exhaust gas into chemical adsorption potential energy.

During the cold capacity storage stage of automobile refrigeration, the adsorption of the chemical adsorbent 5 in the solid-gas chemical reaction adsorption bed 2 causes the refrigerant 7 in the refrigerant liquid receiver 6 to undergo an evaporation phase change, and the energy is transferred from the refrigerant liquid receiver to the phase change. The material storage 8 generates and stores the energy release stage of the cooling capacity of the automobile exhaust gas. The phase change material storage and the heat exchange tube plate 8 are transferred through the heat transfer fluid flow loop at the cooling end to release the cooling capacity.

The working process of this embodiment includes: the stage of energy storage of automobile waste gas thermal energy, the stage of storage of automobile refrigeration and cold capacity, and the stage of energy release of automobile waste gas refrigeration and cold capacity, wherein:

The first stage is the stage of automobile exhaust heat energy storage. Open the automobile exhaust gas regulating valve 1, close the cooling capacity regulating valve 9, and close the refrigerant regulating valve 3; the automobile exhaust gas is a high-temperature heat transfer fluid, which is transported to the adsorption bed heat exchange coil 4 as the chemical adsorption material in the solid chemical reaction adsorption bed 2 5 provides desorption heat, when the temperature of the chemical adsorption material 5 in the solid chemical reaction adsorption bed 2 is heated to the desorption temperature, the refrigerant regulating valve 3 is opened, and the refrigerant 7 vapor desorbed from the solid chemical reaction adsorption bed 2 is refrigerated The refrigerant regulating valve 3 flows into the refrigerant liquid receiver 6 to condense, and the released condensation heat is discharged into the external environment medium (air and water) through the air flowing outside the automobile, and the refrigerant 7 condensed into a liquid state is stored, thereby realizing the exhaust gas emission of the automobile. Conversion and storage of thermal energy to chemisorption potential energy.

The second stage is the storage stage of automobile refrigeration capacity. The automobile exhaust gas regulating valve 1 is closed, the temperature of the solid chemical reaction adsorption bed 2 drops due to the cooling of the outside air, and the chemical adsorption agent 5 in the solid chemical reaction adsorption bed 2 and the refrigerant 7 in the refrigerant liquid receiver 6 undergo a chemical synthesis reaction, The refrigerant 7 in the refrigerant liquid receiver 6 evaporates at low temperature and low pressure to absorb heat to the outside, and the cooling capacity is stored in the phase change material storage and the heat exchange tube plate 8 through the heat exchange tube, so as to realize the storage of cooling capacity .

The third stage is the cooling capacity release stage. After the automobile stops working, the exhaust gas regulating valve 1 of the automobile is closed, the cooling capacity regulating valve 9 is opened, and the cooling capacity is released to the vehicle body 10 through the air flow circulation pump 11, thereby realizing the refrigeration under the parking state of the automobile.

As shown in Fig. 2, P _cond is the working pressure in the storage/release stage of waste heat and heat energy of automobile exhaust gas, P _ev is the working pressure in the cooling capacity release stage, T _a is the adsorption temperature of the adsorbent, and T _g is the desorption temperature of the adsorbent.

In this example, the automobile exhaust regulating valve is arranged on the pipeline I, and the outlet of the automobile exhaust regulating valve is connected with the inlet of the heat exchange coil of the adsorption bed; the outlet of the heat exchange coil of the adsorption bed passes through the pipeline II and the exhaust pipe of the automobile connected; the refrigerant regulating valve is set on pipeline III, the outlet of the solid-gas chemical reaction adsorption bed is connected to the inlet of the refrigerant regulating valve, the outlet of the refrigerant regulating valve is connected to the inlet of the refrigerant liquid receiver, and the solid-gas chemical reaction The adsorption bed is equipped with an adsorption bed heat exchange coil, and the chemical adsorbent is filled in the solid-gas chemical reaction adsorption bed. The cooling capacity regulating valve is set on the pipeline IV, the air circulation pump is set on the pipeline V, the outlet of the phase change material storage and the heat exchange tube plate is connected with the inlet of the cooling capacity regulating valve, and the cooling capacity The outlet of the regulating valve is connected with the inlet of the car body, and the outlet of the car body is connected with the air circulation pump.

The outlet of the automobile tail gas regulating valve is connected to the inlet of the heat exchange coil of the adsorption bed; the outlet of the heat exchange coil of the adsorption bed is connected to the exhaust pipe of the automobile to form a heat transfer fluid flow loop of the device.

The phase change material storage and heat exchange tube disk, the cold user end regulating valve, the cold user end, the low temperature heat transfer fluid circulation pump, the phase change material storage and the heat exchange tube disk are connected in sequence to form the heat transfer fluid at the cold user end flow loop.

The refrigerant liquid storage, phase change material storage, heat exchange tube coil, cooling capacity regulating valve, car body and air circulation pump are connected in sequence to form a heat transfer fluid flow loop at the cooling end.

The solid-gas chemical reaction adsorption bed, the refrigerant regulating valve and the refrigerant liquid receiver are connected in sequence to form a bidirectional flow loop of the refrigerant.

The flow direction of the refrigerant is bidirectional, and the refrigerant flows bidirectionally in the adsorption bed, the refrigerant regulating valve and the refrigerant liquid receiver.

In the stage of thermal energy storage of automobile exhaust gas, the thermodynamic cycle process is ABC, the working pressure is P _cond , and the condensation temperature in the storage process is T _g . In this stage, the heat obtained by using the waste heat of automobile exhaust gas is provided for the chemical adsorbent 5 in the solid-gas chemical reactor 2 Desorption heat realizes the conversion and storage of automobile exhaust heat energy into chemical adsorption potential energy;

When the refrigeration capacity is released, the thermodynamic cycle process is CDA, the working pressure is P _ev , and the adsorption temperature in the release process is T _a . In this stage, the adsorption of the adsorbent 5 in the chemical adsorption bed 2 in the solid chemical adsorption bed is used to make the refrigeration The refrigerant 7 in the liquid storage tank 6 undergoes a phase change at low temperature and low pressure to absorb heat to the outside, and stores the heat in the phase change material storage and the heat exchange tube disk 8 .

Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention.

Claims (7)

1. the automobile waste heat based on absorption type refrigerating reclaims parking air conditioner, it is characterized in that, comprise solid and gas chemical reaction adsorbent bed, adsorbent bed heat exchange coil, cold-producing medium reservoir and phase-change material memory and heat exchanger tube dish, wherein, the inside of described solid and gas chemical reaction adsorbent bed is provided with chemosorbent, described adsorbent bed heat exchange coil is arranged at the inside of solid and gas chemical reaction adsorbent bed, the arrival end of adsorbent bed heat exchange coil is collected automobile exhaust heat by pipeline I, the port of export of adsorbent bed heat exchange coil is connected with automobile exhaust gas blast pipe by pipeline II, form air-conditioning heat-transfer fluid flowloop, described solid and gas chemical reaction adsorbent bed is by pipeline III and cold-producing medium reservoir diconnected, form cold-producing medium two-way flow loop, thereby will in solid and gas chemical reaction adsorbent bed, separate cold-producing medium two-way flow between solid and gas chemical reaction adsorbent bed and cold-producing medium reservoir of sucking-off, described phase-change material memory and heat exchanger tube dish are arranged at the inside of cold-producing medium reservoir, the port of export of phase-change material memory and heat exchanger tube dish and arrival end are connected with motor vehicle body by pipeline IV and pipeline V respectively, have formed cold user side heat-transfer fluid flowloop.

2. the automobile waste heat based on absorption type refrigerating according to claim 1 reclaims parking air conditioner, it is characterized in that, described pipeline I is positioned at the outside of solid and gas chemical reaction adsorbent bed, and pipeline I is provided with vehicle exhaust control valve.

3. the automobile waste heat based on absorption type refrigerating according to claim 1 reclaims parking air conditioner, it is characterized in that, described pipeline III is provided with cold-producing medium control valve.

4. the automobile waste heat based on absorption type refrigerating according to claim 1 reclaims parking air conditioner, it is characterized in that, described pipeline IV is positioned at the outside of cold-producing medium reservoir, and pipeline IV is provided with cold regulation valve.

5. the automobile waste heat based on absorption type refrigerating according to claim 1 reclaims parking air conditioner, it is characterized in that, described pipeline V is positioned at the outside of cold-producing medium reservoir, and pipeline V is provided with Air Flow circulating pump.

6. the automobile waste heat based on absorption type refrigerating according to claim 1 reclaims parking air conditioner, it is characterized in that, also comprise tail gas heat collector, described tail gas heat collector is connected in the arrival end of pipeline I.

7. in claim 1 to 6, the automobile waste heat based on absorption type refrigerating described in any one reclaims the method for work of parking air conditioner, comprises following three phases:

First stage, the automobile exhaust gas heat energy energy storage stage: in car running process, utilize heat that air-conditioning heat-transfer fluid flowloop obtains to provide heat of desorption for the chemosorbent in solid and gas chemical reaction adsorbent bed, make the reaction of chemosorbent generation chemical breakdown, realizing exhaust heat-energy stores to the transformation of energy of chemisorbed gesture, the refrigerant vapour of separating sucking-off enters cold-producing medium reservoir and condenses into fluid storage, thereby realize the hot transformation of energy to automobile exhaust gas, stores;

Second stage, automobile refrigerating cold storage stage: vehicle exhaust control valve cuts out, solid and gas chemical reaction adsorbent bed temperature declines, cold-producing medium generation chemosynthesis reaction in solid and gas chemical reaction adsorbent bed in chemosorbent and cold-producing medium reservoir, utilizing cold-producing medium in cold-producing medium reservoir that evaporation occurs under low-temp low-pressure absorbs heat to the external world, by phase-change material memory and heat exchanger tube dish, refrigeration cold is stored in phase-change material, thereby realizes the storage to cold user side refrigeration cold;

Three phases, refrigeration cold discharges the stage: after automobile quits work, cold regulation valve is opened, and the cold that will freeze discharges, thereby realizes the refrigeration under parking of automobile state.

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