CN212267189U - Separated solar adsorption type refrigeration air conditioner for bus - Google Patents
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- CN212267189U CN212267189U CN202021060374.XU CN202021060374U CN212267189U CN 212267189 U CN212267189 U CN 212267189U CN 202021060374 U CN202021060374 U CN 202021060374U CN 212267189 U CN212267189 U CN 212267189U
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Abstract
The utility model relates to a solar energy adsorbs formula refrigerating system field, the utility model discloses a disconnect-type solar energy adsorbs formula refrigeration air conditioner for bus, including adsorption bed, condenser, evaporimeter, liquid storage pot, flat solar collector, water pump, pipeline and pipeline valve. The utility model adopts the alternate circulation of the double adsorption beds, and improves the heat utilization rate and the adsorption efficiency of the adsorption beds by recovering the heat from the desorption state to the adsorption state of the adsorption beds; the condensation heat of the condenser and the adsorption heat of the adsorption state adsorption bed are taken away by utilizing the high-speed windward in the driving process of the bus, so that the energy is saved, and the structure is more compact. The adsorption bed is composed of a plurality of layers of sub-adsorption beds at intervals, fins are added on the outer wall of the internal heat exchange tube of the sub-adsorption bed and the inner and outer walls of the upper part and the bottom of the bed shell, the utilization rate of solar energy is improved, and the heat dissipation of the adsorption bed in an adsorption state is enhanced. The utility model discloses can effectively utilize solar energy refrigeration, reduce the energy consumption of bus air conditioner, improve its continuation of the journey mileage.
Description
Technical Field
The utility model belongs to solar energy absorption formula refrigerating system field, concretely relates to disconnect-type solar energy absorption formula refrigeration air conditioner for bus.
Background
As an important component for developing and utilizing new energy in the world, solar energy is clean and pollution-free renewable energy. The solar energy radiation amount is matched with the seasonal peak height of the refrigerating capacity, and the solar refrigeration system has the advantages of energy conservation, environmental protection and environmental protection, so that the solar refrigeration system has bright application prospect. Compared with the solar absorption refrigeration, the solar absorption refrigeration does not need a solution pump or a fractionation device, does not have the phenomena of corrosion and crystallization in the absorption refrigeration, and can utilize low-grade heat energy. Therefore, from the perspective of energy utilization and environmental protection, the solar adsorption refrigeration with simple structure, energy conservation, environmental protection and low noise has great development potential.
With the aggravation of energy crisis and environmental protection requirements, governments and automobile enterprises have increased the development investment on buses. Meanwhile, as an auxiliary system with the largest energy consumption in the bus, namely an electric air conditioning system, the consumed energy generally accounts for 20% -40% of the energy consumption of the whole bus, energy waste is caused when the power is too large, and driving comfort is influenced when the power is too small. The solar adsorption type refrigerating system is combined with the existing bus system, so that the energy consumption of an air conditioning system can be reduced, and the power performance and the endurance mileage of the bus can be improved.
Patent No. CN106627047A discloses a solar adsorption type refrigeration air conditioner for a bus. The air conditioning system comprises an adsorption type refrigerating device, a solar heat collecting device, a ventilation system and a control device. This solar energy adsorption type air conditioner solar panel for bus and adsorption bed direct contact carry out the heat transfer of solar heat collection device and adsorption bed only through heat conduction, and the heat conduction is little, and heat transfer effect is poor, and the temperature is inhomogeneous in the adsorption bed moreover.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model provides a disconnect-type solar energy adsorption refrigeration air conditioner for bus, the heat conduction is big, and heat transfer effect is good, and the temperature is even in the adsorption bed.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a separated solar adsorption type refrigeration air conditioner for a bus comprises a first adsorption bed, a second adsorption bed, a heat collection plate, a condenser and an evaporator; the first adsorption bed and the second adsorption bed respectively comprise a plurality of layers of sub-adsorption beds, a gap is arranged between every two adjacent layers of sub-adsorption beds, an outer fin is arranged on the outer wall of each layer of sub-adsorption bed, an inner fin and a hot water pipe are arranged inside each layer of sub-adsorption bed, the inner fin is sleeved on the hot water pipe, and through holes for passing refrigerants are formed in the inner fins; the hot water pipes between the main water inlet and the main water outlet on the first adsorption bed and the second adsorption bed are the same-way pipelines, and the hot water pipes in each layer of the sub-adsorption beds are also the same-way pipelines;
refrigerant outlets of the first adsorption bed and the second adsorption bed are respectively communicated with an inlet end of the condenser through a first pipeline and a second pipeline, and a first valve and a second valve are respectively arranged on the first pipeline and the second pipeline; the outlet end of the condenser is communicated with the inlet end of the evaporator through a third pipeline; the outlet end of the evaporator is respectively communicated with the refrigerant inlets of the first adsorption bed and the second adsorption bed through a fourth pipeline and a fifth pipeline, and a third valve and a fourth valve are respectively arranged on the fourth pipeline and the fifth pipeline;
the water outlet end of the heat collecting plate is respectively communicated with the main water inlets of the first adsorption bed and the second adsorption bed through a sixth pipeline and a seventh pipeline, and a fifth valve and a sixth valve are respectively arranged on the sixth pipeline and the seventh pipeline; the total water outlets of the first adsorption bed and the second adsorption bed are respectively communicated with the water inlet end of the heat collecting plate through an eighth pipeline and a ninth pipeline, and a seventh valve and an eighth valve are respectively arranged on the eighth pipeline and the ninth pipeline.
Further, the sixth pipeline is communicated with the seventh pipeline, the total water outlets of the first adsorption bed and the second adsorption bed are also communicated with the water inlet end of the heat collecting plate through a tenth pipeline and an eleventh pipeline respectively, and a ninth valve and a tenth valve are arranged on the tenth pipeline and the eleventh pipeline respectively.
Furthermore, a water pump is arranged at the water inlet end of the heat collecting plate, the input end of the water pump is communicated with the eighth pipeline and the ninth pipeline respectively, and the output end of the water pump is communicated with the water inlet end of the heat collecting plate.
Furthermore, an electric valve is arranged between the output end of the water pump and the water inlet end of the heat collection plate.
Further, a guide rail is arranged between the first adsorption bed and the second adsorption bed, a heat insulation cover capable of moving along the guide rail is arranged on the guide rail, and the heat insulation cover is used for covering the first adsorption bed or the second adsorption bed.
Further, a liquid storage tank is arranged on the third pipeline and used for containing liquid refrigerants.
Furthermore, an electromagnetic expansion valve is further arranged on the third pipeline, and the electromagnetic expansion valve is located between the liquid storage tank and the inlet end of the evaporator.
Furthermore, the gap between two adjacent sub-adsorption beds is 10-25 mm.
Further, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve, and the tenth valve are all solenoid valves.
Compared with the prior art, the utility model discloses following beneficial effect has at least: the utility model provides a separated solar adsorption refrigeration air conditioner for buses, which comprises a first adsorption bed and a second adsorption bed, wherein the first adsorption bed and the second adsorption bed comprise a plurality of layers of sub-adsorption beds, and a gap is arranged between every two adjacent sub-adsorption beds, so that air can conveniently circulate between the adjacent sub-adsorption beds, and the heat dissipation efficiency is improved; the outer wall of each layer of sub-adsorption beds is provided with the outer fins, and for the adsorption beds in an adsorption state, heat brought back by the refrigerant is transferred to the outer fins, so that the heat dissipation efficiency is greatly improved; the inner fin and the hot water pipe are arranged in each layer of the sub-adsorption bed, the inner fin is sleeved on the hot water pipe, the through holes for the refrigerant to pass through are formed in the inner fin, for the adsorption bed in a desorption state, heat in the hot water pipe is conducted to the inner fin, the heat conduction area is increased, the heat conduction amount is increased, large heat transfer amount is achieved, desorption of the refrigerant is greatly improved, the hot water pipes from the main water inlet to the main water outlet on the first adsorption bed and the second adsorption bed are in the same-form pipelines, the hot water pipes in each layer of the sub-adsorption bed are in the same-form pipelines, namely, the flow and the flow speed of hot water entering from the water inlet and flowing through each hot water pipe are the same, and temperature distribution in the adsorption bed is uniform. To sum up, the utility model discloses a two adsorption beds circulate in turn, the condensation heat of condenser and the adsorption state adsorption bed's adsorption heat are taken away to the high-speed windward that utilizes the bus to travel the in-process, not only energy-conservation and structure are compacter, the adsorption bed comprises the sub-adsorption bed of multilayer spaced, and the inside and outside wall of the inside heat exchange tube (hot-water line) outer wall of sub-adsorption bed and sub-adsorption bed shell upper portion and bottom all adds the fin, improve heat transfer efficiency, the utilization ratio of solar energy has been improved, the heat dissipation of adsorption bed under the reinforcing adsorption state, finally, solar energy adsorption refrigeration cop is improved. The utility model discloses can effectively utilize solar energy refrigeration, reduce the energy consumption of bus air conditioner, improve its continuation of the journey mileage, have good popularization and application and worth.
Further, the utility model discloses a sixth pipeline and seventh pipeline intercommunication, the delivery port of first adsorption bed and second adsorption bed still communicate with the end of intaking of thermal-arrest board through tenth pipeline and eleventh pipeline respectively, are provided with ninth valve and tenth valve on tenth pipeline and the eleventh pipeline respectively. The design has the advantages that when the first adsorption bed is transited from the heating desorption state to the adsorption state and the second adsorption bed is transited from the adsorption state to the heating desorption state, water flow can enter the first adsorption bed through the ninth valve and flow into the second adsorption bed after being heated by the waste heat of the first adsorption bed; or when the second adsorption bed is transited from the heating desorption state to the adsorption state and the first adsorption bed is transited from the adsorption state to the heating desorption state, water flow can enter the second adsorption bed through the tenth valve and flows into the first adsorption bed after being heated by the waste heat of the second adsorption bed. Therefore, the design improves the heat utilization rate and the adsorption efficiency of the adsorption bed through heat recovery from the desorption state to the adsorption state of the adsorption bed.
Furthermore, a water pump is arranged at the water inlet end of the heat collecting plate, the input end of the water pump is respectively communicated with the eighth pipeline and the ninth pipeline, the output end of the water pump is communicated with the water inlet end of the heat collecting plate, and the water pump is used for overcoming the on-way resistance and the local resistance of a hot water pipeline and ensuring that the flow rate of hot water in the hot water pipe in the sub-adsorption bed meets the requirement.
Furthermore, an electric valve is arranged between the output end of the water pump and the water inlet end of the heat collection plate, the electric valve can adjust the flow of the pipeline to realize the ratio of the flow to the solar flat plate type heat collection plate to the whole hot water flow when the transitional operation state of the adsorption bed is adjusted, and the other part of low-temperature hot water is led to the adsorption bed from the heating desorption state to the adsorption state, so that the heat recovery from the heating desorption state to the adsorption state is realized.
Furthermore, the utility model is also provided with a heat shield, when the first adsorption bed is in a desorption state, the heat shield is positioned above the first adsorption bed, so that the first adsorption bed in a heating desorption state can be prevented from being cooled by natural wind, and the desorption efficiency of the first adsorption bed can be improved; similarly, when the second adsorption bed is in the desorption state, the heat shield is positioned above the second adsorption bed, so that the second adsorption bed in the heating desorption state can be prevented from being cooled by natural air, and the desorption efficiency of the second adsorption bed can be improved.
Further, the third pipeline is provided with a liquid storage tank, the liquid storage tank is used for containing liquid refrigerant, the design has the advantages that the amount of the liquid refrigerant coming out of the condenser can be unstable due to the fact that the flow of the refrigerant heated and desorbed from the adsorption bed fluctuates periodically, and after the liquid storage tank is added, the flow of the refrigerant going to the electromagnetic expansion valve can be controlled to be constant, so that the evaporator has stable refrigerant flow, and stable refrigerating capacity is achieved at the evaporator.
Furthermore, an electromagnetic expansion valve is further arranged on the third pipeline, the electromagnetic expansion valve is positioned between the liquid storage tank and the inlet end of the evaporator, and the electromagnetic expansion valve can realize an isenthalpic throttling process so that the refrigerant is changed from a high-temperature high-pressure state to a low-temperature low-pressure state.
Furthermore, the gap between two adjacent layers of sub-adsorption beds is 10-25 mm, so that the adsorption beds can be cooled by making full use of the windward when a bus runs, and the whole adsorption bed cannot be too tall.
Furthermore, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve and the tenth valve are all electromagnetic valves, and the electromagnetic valves can automatically cut off or open pipelines so as to realize automatic switching of different operation states.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a system schematic diagram of the separating solar adsorption type refrigeration air conditioner for the bus of the utility model;
fig. 2 is a schematic view of the working principle of the first adsorption bed and the second adsorption bed of the present invention in a heating desorption state and an adsorption state;
fig. 3 is a schematic view of the working principle of the first adsorption bed of the present invention when the first adsorption bed is in the transition from the heating desorption state to the adsorption state, and the second adsorption bed is in the transition from the adsorption state to the heating desorption state;
fig. 4 is a schematic view of the working principle of the second adsorption bed and the first adsorption bed in the heating desorption state and the adsorption state of the present invention;
fig. 5 is a schematic view of the working principle of the second adsorption bed of the present invention when the second adsorption bed is in the transition from the heating desorption state to the adsorption state, and the first adsorption bed is in the transition from the adsorption state to the heating desorption state;
FIG. 6 is a top view of the first and second adsorption beds of the present invention;
FIG. 7 is a cross-sectional view taken along line 1-1 of FIG. 6;
FIG. 8 is an enlarged partial schematic view of FIG. 7;
FIG. 9 is a cross-sectional view taken along line 2-2 of FIG. 6;
fig. 10 is a partially enlarged schematic view of fig. 9.
In the figure: a-a sub-adsorbent bed; b-a hot water pipe; c-outer fins; d-inner fins; e-a through hole; a-a refrigerant outlet; b-a refrigerant inlet; c-total water inlet; d-a total water outlet; 1-a first adsorption bed; 2-a second adsorption bed; 3-heat collecting plate; 4-a condenser; 5-an evaporator; 6-a first valve; 7-a second valve; 8-a third valve; 9-a fourth valve; 10-a fifth valve; 11-a sixth valve; 12-a seventh valve; 13-an eighth valve; 14-a ninth valve; 15-tenth valve; 16-a water pump; 17-an electrically operated valve; 18-a liquid storage tank; 19-an electromagnetic expansion valve; 20-heat shield.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As a specific embodiment of the present invention, as shown in fig. 1, a separated solar adsorption type refrigeration air conditioner for a bus comprises a first adsorption bed 1, a second adsorption bed 2, a heat collecting plate 3, a condenser 4, an evaporator 5, a first valve 6, a second valve 7, a third valve 8, a fourth valve 9, a fifth valve 10, a sixth valve 11, a seventh valve 12, an eighth valve 13, a ninth valve 14, a tenth valve 15, a water pump 16, an electric valve 17, a liquid storage tank 18, an electromagnetic expansion valve 19, and a heat insulating cover 20. As shown in fig. 6, 7, 8, 9 and 10, the first adsorption bed 1 and the second adsorption bed 2 of the present invention each include a plurality of sub-adsorption beds a, and a gap is provided between two adjacent sub-adsorption beds a, preferably, the gap between two adjacent sub-adsorption beds a is 10mm to 25 mm. As shown in fig. 8 and 10, the outer wall of each layer of sub-adsorption bed a is provided with outer fins c, that is, the top and the bottom of each layer of sub-adsorption bed a are both provided with outer fins c; the inner part of each layer of the sub-adsorption bed a is provided with a plurality of inner fins d and a plurality of hot water pipes b, each inner fin d is sleeved on each hot water pipe b, each inner fin d is provided with a through hole e for a refrigerant to pass through, concretely, the inner part of each layer of the sub-adsorption bed a is uniformly provided with a plurality of inner fins d and hot water pipes b, and in each layer of the sub-adsorption bed a, the position, between two adjacent hot water pipes b, of each inner fin d is provided with the through hole e. The hot water pipes b between the main water inlet C and the main water outlet D on the first adsorption bed 1 and the second adsorption bed 2 are same-type pipelines, and the hot water pipes b in each layer of sub-adsorption beds a are same-type pipelines, namely a plurality of hot water pipes are connected in parallel by single-thread pipelines, and the same-type pipelines ensure the thermal uniformity of the adsorption beds, thereby improving the thermal utilization rate. As shown in fig. 6, a refrigerant inlet B and a refrigerant outlet a, and a total water inlet C and a total water outlet D are respectively disposed at both sides of the first adsorption bed 1 and the second adsorption bed 2.
In this embodiment, each of the first adsorption bed 1 and the second adsorption bed 2 includes three sub-adsorption beds a, and a gap between two adjacent sub-adsorption beds a is 10 mm.
As shown in fig. 1 and 6 to 10, the refrigerant outlets a of the first adsorption bed 1 and the second adsorption bed 2 are respectively communicated with the inlet end of the condenser 4 through a first pipeline and a second pipeline, and the first pipeline and the second pipeline are respectively provided with a first valve 6 and a second valve 7. The outlet end of the condenser 4 is connected to the inlet end of the evaporator 5 by a third pipe, and preferably, a liquid storage tank 18 and an electromagnetic expansion valve 19 are disposed on the third pipe, and the electromagnetic expansion valve 19 is located between the liquid storage tank 18 and the inlet end of the evaporator 5, and the liquid storage tank 18 is used for accommodating the liquid refrigerant flowing out of the condenser 4. The outlet end of the evaporator 5 is respectively communicated with the refrigerant inlets B of the first adsorption bed 1 and the second adsorption bed 2 through a fourth pipeline and a fifth pipeline, and the fourth pipeline and the fifth pipeline are respectively provided with a third valve 8 and a fourth valve 9.
The water outlet end of the heat collecting plate 3 is respectively communicated with the total water inlets C of the first adsorption bed 1 and the second adsorption bed 2 through a sixth pipeline and a seventh pipeline, and a fifth valve 10 and a sixth valve 11 are respectively arranged on the sixth pipeline and the seventh pipeline; preferably, the sixth conduit and the seventh conduit are in communication. The total water outlet D of the first adsorption bed 1 and the second adsorption bed 2 is respectively communicated with the water inlet end of the heat collecting plate 3 through an eighth pipeline and a ninth pipeline, and the eighth pipeline and the ninth pipeline are respectively provided with a seventh valve 12 and an eighth valve 13; preferably, the total water outlet D of the first adsorption bed 1 and the second adsorption bed 2 is further communicated with the water inlet end of the heat collecting plate 3 through a tenth pipe and an eleventh pipe, respectively, and the tenth pipe and the eleventh pipe are provided with a ninth valve 14 and a tenth valve 15, respectively.
On the basis of the above embodiment, as the utility model discloses a preferred embodiment, still be provided with water pump 16 at the end of intaking of thermal-arrest board 3, water pump 16's input respectively with eighth pipeline and ninth pipeline intercommunication, water pump 16's output and thermal-arrest board 3 intake the end intercommunication, more preferably, still be provided with motorised valve 17 between water pump 16's output and thermal-arrest board 3's the end of intaking.
In addition to the above embodiment, as another preferred embodiment of the present invention, a guide rail is provided between the first adsorption bed 1 and the second adsorption bed 2, a heat shield 20 that can move along the guide rail is provided on the guide rail, and the heat shield 20 is used to cover the first adsorption bed 1 or the second adsorption bed 2. Specifically, the heat shield 20 is moved along the guide rail by a motor drive.
The utility model discloses in, it is preferred, first valve 6, second valve 7, third valve 8, fourth valve 9, fifth valve 10, sixth valve 11, seventh valve 12, eighth valve 13, ninth valve 14 and tenth valve 15 all adopt the solenoid valve.
The working principle of the present invention will be explained in detail with reference to fig. 2 to 5.
As shown in fig. 2: when the first adsorption bed 1 is in a heating desorption state and the second adsorption bed 2 is in an adsorption state, the second valve 7, the third valve 8, the sixth valve 11, the eighth valve 13, the ninth valve 14 and the tenth valve 15 are all in a closed state, and the heat shield 20 is positioned above the first adsorption bed 1, so that natural wind is prevented from cooling the first adsorption bed 1 in the heating desorption state. The refrigerant of the first adsorption bed 1 is heated and then desorbed, the refrigerant vapor flows out from the refrigerant outlet of the first adsorption bed 1 and is connected with the refrigerant inlet of the condenser 4 through the first valve 6, after the condensation heat is released, the liquid refrigerant flows out from the outlet of the condenser 4 and is connected with the refrigerant inlet of the evaporator 5 through the liquid storage tank 18 and the electromagnetic expansion valve 19, the refrigerant vapor is gasified after absorbing the heat of the environment, the refrigerant vapor flows into the second adsorption bed 2 from the refrigerant inlet of the second adsorption bed 2 through the fourth valve 9 and is absorbed by the adsorbent, and simultaneously the released absorption heat is taken away by the high-speed windward when the bus runs. The hot water heated by the flat plate type solar heat collecting plate 3 enters the first adsorption bed 1 from the hot water inlet of the first adsorption bed 1 through the fifth valve 10, the heat is transferred to the first adsorption bed 1 for heating and desorption of the refrigerant, and then the hot water flows into the flat plate type solar heat collecting plate 3 through the seventh valve 12, the water pump 16 and the electric valve 17, so that closed hot water circulation is completed.
As shown in fig. 3: when the first adsorption bed 1 is transited from the heating desorption state to the adsorption state and the second adsorption bed 2 is transited from the adsorption state to the heating desorption state, the first valve 6, the fourth valve 9, the seventh valve 12 and the tenth valve 15 are all in the closed state, and the heat shield 20 is driven by the motor to move from the upper side of the first adsorption bed 1 to the upper side of the second adsorption bed 2 along the guide rail. The low-temperature hot water in the second adsorption bed 2 flows into the water pump 16 through the eighth valve 13, is pressurized by the water pump 16 and then is divided into two paths, one path enters the flat plate type solar heat collecting plate 3 through the electric valve 17 to be heated, the other path enters the first adsorption bed 1 through the ninth valve 14, is heated by the waste heat of the first adsorption bed 1, then is converged with the hot water flowing out of the flat plate type solar heat collecting plate 3 and flows into the second adsorption bed 2 together, and the heat is transferred into the second adsorption bed 2. The transition state is ended when the temperature difference between the first adsorption bed 1 and the second adsorption bed 2 is reduced to a certain degree.
As shown in fig. 4: when the second adsorption bed 2 is in a heating desorption state and the first adsorption bed 1 is in an adsorption state, the first valve 6, the fourth valve 9, the fifth valve 10, the seventh valve 12, the ninth valve 14 and the tenth valve 15 are all in a closed state, and the heat shield 20 is located above the second adsorption bed 2, so that natural wind is prevented from cooling the second adsorption bed 2 in the heating desorption state. The refrigerant of the second adsorption bed 2 is heated and then desorbed, the refrigerant vapor flows out from the refrigerant outlet of the second adsorption bed 2, is connected with the refrigerant inlet of the condenser 4 through the second valve 7, after the condensation heat is released, the liquid refrigerant flows out from the outlet of the condenser 4, is connected with the refrigerant inlet of the evaporator 5 through the liquid storage tank 18 and the electromagnetic expansion valve 19, is gasified after absorbing the heat of the environment, the refrigerant vapor flows into the first adsorption bed 1 from the refrigerant inlet of the first adsorption bed 1 through the third valve 8 and is absorbed by the adsorbent, and meanwhile, the released absorption heat is taken away by the high-speed head-on wind when the bus runs. The hot water heated by the flat plate type solar heat collecting plate 3 enters the second adsorption bed 2 from the hot water inlet pipe of the second adsorption bed 2 through the sixth valve 11, the heat is transferred to the second adsorption bed 2 for heating and desorption of the refrigerant, and then the hot water flows into the flat plate type solar heat collecting plate 3 through the eighth valve 13, the water pump 16 and the electric valve 17, so that closed hot water circulation is completed.
As shown in fig. 5: when the second adsorption bed 2 is transited from the heating desorption state to the adsorption state and the first adsorption bed 1 is transited from the adsorption state to the heating desorption state, the second valve 7, the third valve 8, the eighth valve 13 and the ninth valve 14 are all in the closed state, and the heat shield 20 is driven by the motor to move from the upper side of the second adsorption bed 2 to the upper side of the first adsorption bed 1 along the guide rail. The low-temperature hot water in the first adsorption bed 1 flows into the water pump 16 through the seventh valve 12, is pressurized by the water pump 16 and then is divided into two paths, one path enters the flat plate type solar heat collecting plate 3 through the electric valve 17 to be heated, the other path enters the second adsorption bed 2 through the tenth valve 15, is heated by the waste heat of the second adsorption bed 2, then is converged with the hot water flowing out of the flat plate type solar heat collecting plate 3 and flows into the first adsorption bed 1 together, and the heat is transferred into the first adsorption bed 1. The transition state ends when the temperature difference between the second adsorption bed 2 and the first adsorption bed 1 decreases to a certain extent.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A separated solar adsorption type refrigeration air conditioner for a bus is characterized by comprising a first adsorption bed (1), a second adsorption bed (2), a heat collection plate (3), a condenser (4) and an evaporator (5); the first adsorption bed (1) and the second adsorption bed (2) respectively comprise a plurality of layers of sub-adsorption beds (a), a gap is arranged between every two adjacent layers of sub-adsorption beds (a), an outer fin (c) is arranged on the outer wall of each layer of sub-adsorption bed (a), an inner fin (d) and a hot water pipe (b) are arranged inside each layer of sub-adsorption bed (a), the inner fin (d) is sleeved on the hot water pipe (b), and a through hole (e) for a refrigerant to pass through is formed in the inner fin (d); the hot water pipes (b) between the main water inlet (C) and the main water outlet (D) on the first adsorption bed (1) and the second adsorption bed (2) are in the same-way type, and the hot water pipes (b) in each layer of the sub-adsorption beds (a) are in the same-way type;
refrigerant outlets (A) of the first adsorption bed (1) and the second adsorption bed (2) are respectively communicated with an inlet end of the condenser (4) through a first pipeline and a second pipeline, and a first valve (6) and a second valve (7) are respectively arranged on the first pipeline and the second pipeline; the outlet end of the condenser (4) is communicated with the inlet end of the evaporator (5) through a third pipeline; the outlet end of the evaporator (5) is respectively communicated with the refrigerant inlets (B) of the first adsorption bed (1) and the second adsorption bed (2) through a fourth pipeline and a fifth pipeline, and a third valve (8) and a fourth valve (9) are respectively arranged on the fourth pipeline and the fifth pipeline;
the water outlet end of the heat collecting plate (3) is respectively communicated with a total water inlet (C) of the first adsorption bed (1) and the second adsorption bed (2) through a sixth pipeline and a seventh pipeline, and a fifth valve (10) and a sixth valve (11) are respectively arranged on the sixth pipeline and the seventh pipeline; the total water outlet (D) of the first adsorption bed (1) and the total water outlet (D) of the second adsorption bed (2) are communicated with the water inlet end of the heat collecting plate (3) through an eighth pipeline and a ninth pipeline respectively, and a seventh valve (12) and an eighth valve (13) are arranged on the eighth pipeline and the ninth pipeline respectively.
2. The separating solar adsorption refrigeration air conditioner for the bus according to claim 1, characterized in that the sixth pipeline is communicated with the seventh pipeline, the total water outlet (D) of the first adsorption bed (1) and the second adsorption bed (2) is also communicated with the water inlet end of the heat collecting plate (3) through a tenth pipeline and an eleventh pipeline respectively, and a ninth valve (14) and a tenth valve (15) are respectively arranged on the tenth pipeline and the eleventh pipeline.
3. The separating solar adsorption type refrigeration air conditioner for the bus according to claim 1, characterized in that a water pump (16) is arranged at the water inlet end of the heat collecting plate (3), the input end of the water pump (16) is respectively communicated with the eighth pipeline and the ninth pipeline, and the output end of the water pump (16) is communicated with the water inlet end of the heat collecting plate (3).
4. The separated solar adsorption type refrigeration air conditioner for the bus as claimed in claim 3, characterized in that an electric valve (17) is further arranged between the output end of the water pump (16) and the water inlet end of the heat collecting plate (3).
5. The separating solar adsorption refrigeration air conditioner for the bus according to claim 1, characterized in that a guide rail is arranged between the first adsorption bed (1) and the second adsorption bed (2), a heat shield (20) capable of moving along the guide rail is arranged on the guide rail, and the heat shield (20) is used for covering the first adsorption bed (1) or the second adsorption bed (2).
6. A split solar adsorption type refrigeration air conditioner for buses according to claim 1, characterized in that a liquid storage tank (18) is arranged on the third pipeline, and the liquid storage tank (18) is used for containing liquid refrigerant.
7. A separating solar adsorption refrigeration air conditioner for bus according to claim 6, characterized in that an electromagnetic expansion valve (19) is further arranged on the third pipeline, and the electromagnetic expansion valve (19) is located between the liquid storage tank (18) and the inlet end of the evaporator (5).
8. The separated solar adsorption type refrigeration air conditioner for buses as claimed in claim 1, wherein the gap between two adjacent sub-adsorption beds (a) is 10-25 mm.
9. A split solar adsorption type refrigeration air conditioner for buses according to claim 2, characterized in that the first valve (6), the second valve (7), the third valve (8), the fourth valve (9), the fifth valve (10), the sixth valve (11), the seventh valve (12), the eighth valve (13), the ninth valve (14) and the tenth valve (15) are all solenoid valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021060374.XU CN212267189U (en) | 2020-06-10 | 2020-06-10 | Separated solar adsorption type refrigeration air conditioner for bus |
Applications Claiming Priority (1)
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| CN111559224A (en) * | 2020-06-10 | 2020-08-21 | 长安大学 | Separated solar adsorption type refrigeration air conditioner for bus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111559224A (en) * | 2020-06-10 | 2020-08-21 | 长安大学 | Separated solar adsorption type refrigeration air conditioner for bus |
| CN111559224B (en) * | 2020-06-10 | 2024-04-19 | 长安大学 | Separated solar adsorption type refrigeration air conditioner for buses |
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