CN220453825U - Integrated air conditioning system - Google Patents

Abstract

The utility model relates to the technical field of air conditioners, in particular to an integrated air conditioning system which comprises a compressor, a throttling device, a heating device, a refrigerating device, a heating and refrigerating device and a valve mechanism; the refrigerating device is provided with an evaporation heat exchanger, and the compressor, the condensation heat exchanger, the throttling device and the evaporation heat exchanger are sequentially connected to form a refrigerant circulation loop; the heating and refrigerating device is provided with an indoor heat exchanger; the valve mechanism is used for connecting the indoor heat exchanger into the refrigerant circulation loop so that the indoor heat exchanger is connected with the condensing heat exchanger or the evaporating heat exchanger in parallel. According to the technical scheme, the heating and refrigerating device, the refrigerating device and the heating device are integrated into one system, so that the cost of the whole system is reduced, the energy efficiency of the system is improved, and the noise is reduced.

Description

Integrated air conditioning system

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an integrated air conditioning system.

Background

With the improvement of living standard of people, a heating device, a refrigerating device and a heating and refrigerating device are gradually becoming necessities for people's life, wherein the heating device can be a heat pump water heater, the refrigerating device can be a refrigerator, the heating and refrigerating device can be an air conditioner, and the like. However, the current domestic air conditioner, refrigerator and heat pump water heater are all usually air-cooled systems, which have lower efficiency and higher energy consumption, and simultaneously discharge condensation heat to the outside when the air conditioner is used for refrigerating in summer. When the refrigerator is refrigerating, the condensation heat is discharged into the room, and the air conditioner discharges the condensation heat from the room. And the heat pump water heater needs to absorb heat from the outside to supply hot water. In the whole process, a great amount of heat is wasted, so that the energy efficiency of the air conditioner, the refrigerator and the heat pump water heater is reduced.

Disclosure of Invention

In view of the above, the present utility model provides an integrated air conditioning system, which mainly solves the following technical problems: and the condensing heat generated by the refrigeration of the refrigerating device and the heating and refrigerating device is fully utilized, so that the energy efficiency of the system is improved.

In order to achieve the above purpose, the present utility model mainly provides the following technical solutions:

embodiments of the present utility model provide an integrated air conditioning system comprising a compressor, a throttling device, a heating device, a cooling device, a heating and cooling device, and a valve mechanism;

the refrigerating device is provided with an evaporation heat exchanger, and the compressor, the condensation heat exchanger, the throttling device and the evaporation heat exchanger are sequentially connected to form a refrigerant circulation loop;

the heating and refrigerating device is provided with an indoor heat exchanger; the valve mechanism is used for connecting the indoor heat exchanger into the refrigerant circulation loop so that the indoor heat exchanger is connected with the condensing heat exchanger or the evaporating heat exchanger in parallel.

In some embodiments, the valve mechanism comprises a first on-off valve and a second on-off valve;

one end of the first switch valve and one end of the second switch valve are both used for being connected with a pipeline of one end of the indoor heat exchanger, the other end of the indoor heat exchanger is used for being connected with an air outlet pipeline of the condensing heat exchanger and an air inlet pipeline of the evaporating heat exchanger, the other end of the first switch valve is used for being connected with an air exhaust pipeline of the compressor, and the other end of the second switch valve is used for being connected with an air suction pipeline of the compressor.

In some embodiments, the first on-off valve is open and the second on-off valve is closed, connecting the indoor heat exchanger in parallel with the condensing heat exchanger;

or the first switch valve is closed, and the second switch valve is opened, so that the indoor heat exchanger and the evaporation heat exchanger are connected in parallel.

In some embodiments, the valve mechanism further comprises a third on-off valve for being disposed on a line at the other end of the indoor heat exchanger;

and/or the valve mechanism further comprises a fourth switch valve, wherein the fourth switch valve is used for being arranged on an air outlet pipeline of the condensing heat exchanger;

and/or the valve mechanism further comprises a fifth switch valve, wherein the fifth switch valve is used for being arranged on an air inlet pipeline of the evaporation heat exchanger;

and/or the valve mechanism further comprises a sixth switching valve for being disposed on a discharge line of the compressor;

and/or the valve mechanism further comprises a one-way valve arranged on the air outlet pipeline of the condensing heat exchanger.

In some embodiments, the throttling means comprises a first throttling means, a second throttling means and a third throttling means;

the first throttling device is used for being arranged on an air outlet pipeline of the condensing heat exchanger, and the second throttling device is used for being arranged on an air inlet pipeline of the evaporating heat exchanger; the third throttling device is arranged on a pipeline at the other end of the indoor heat exchanger.

In some embodiments, the heating and cooling device further has an outdoor heat exchanger;

the valve mechanism is also used for connecting the outdoor heat exchanger to the refrigerant circulation loop or disconnecting the outdoor heat exchanger from the refrigerant circulation loop, and connecting the outdoor heat exchanger with the condensing heat exchanger or the evaporating heat exchanger in parallel when the outdoor heat exchanger is connected to the refrigerant circulation loop.

In some embodiments, one end of the outdoor heat exchanger is used for being connected with an exhaust port of the compressor through a first pipeline, and one end of the outdoor heat exchanger is used for being connected with an air suction port of the compressor through a second pipeline; the pipeline at the other end of the outdoor heat exchanger is used for being connected with the air outlet pipeline of the condensing heat exchanger and the air inlet pipeline of the evaporating heat exchanger;

the valve mechanism comprises a seventh switching valve, an eighth switching valve and a ninth switching valve, wherein the seventh switching valve is used for being arranged on the first pipeline, the eighth switching valve is used for being arranged on the second pipeline, and the ninth switching valve is used for being arranged on a pipeline at the other end of the outdoor heat exchanger.

In some embodiments, the seventh, eighth, and ninth switching valves are all closed to disconnect the outdoor heat exchanger from the refrigerant circulation loop;

or the seventh switch valve is opened, the eighth switch valve is closed, and the ninth switch valve is opened, so that the outdoor heat exchanger and the condensing heat exchanger are connected in parallel;

or, the seventh switching valve is closed, and the eighth switching valve is opened, and the ninth switching valve is opened, so that the outdoor heat exchanger is connected in parallel with the evaporation heat exchanger.

In some embodiments, when the other end of the indoor heat exchanger is connected to both the outlet pipe of the condensing heat exchanger and the inlet pipe of the evaporating heat exchanger, the other end of the indoor heat exchanger is also connected to the pipe of the other end of the outdoor heat exchanger.

In some embodiments, the integrated air conditioning system further comprises a liquid pipe, a high-pressure air pipe and a low-pressure air pipe, wherein the liquid pipe, the high-pressure air pipe and the low-pressure air pipe are all used for conveying the refrigerant; when the valve mechanism includes a first on-off valve and a second on-off valve;

the air inlet pipeline of the evaporation heat exchanger, the air outlet pipeline of the condensation heat exchanger, the pipeline at the other end of the indoor heat exchanger and the pipeline at the other end of the outdoor heat exchanger are all used for being connected to the liquid pipe;

the air outlet pipeline of the evaporation heat exchanger, the pipeline at the other end of the second switch valve and the air suction pipeline of the compressor are all used for being connected to a low-pressure air pipe;

the air inlet pipeline of the condensing heat exchanger, the pipeline at the other end of the first switch valve and the exhaust pipeline of the compressor are all used for being connected to a high-pressure air pipe.

In some embodiments, the throttling means comprises a fourth throttling means provided on the line at the other end of the outdoor heat exchanger.

In some embodiments, the heating and cooling device is an air conditioner, and/or the heating device is a heat pump water heater, and/or the cooling device is a refrigerator, freezer, or freezer.

By means of the technical scheme, the integrated air conditioning system has at least the following beneficial effects:

1. the compressor, the condensing heat exchanger, the throttling device and the evaporating heat exchanger are sequentially connected to form a refrigerant circulation loop, so that the condensing heat of the refrigerating device can be transmitted to the heating device for use, the recycling of the condensing heat is realized, the waste of heat is reduced, and the energy efficiency of the system is improved;

2. when the indoor heat exchanger is connected with the condensing heat exchanger in parallel, the indoor heat exchanger is used as a condenser at the moment, and the indoor heat exchanger is matched with the condensing heat exchanger of the refrigerating device, so that respective condensing heat can be transmitted to the heating device for use, and the condensing heat is further recycled, thereby further reducing heat waste and further improving the energy efficiency of the system;

3. when the indoor heat exchanger is connected with the evaporation heat exchanger in parallel, the indoor heat exchanger is used as an evaporator at the moment, and the indoor heat exchanger is matched with the evaporation heat exchanger of the heating device, so that the condensation heat of the refrigerating device can be commonly utilized, the waste of heat is avoided, and the energy efficiency of the system is further improved.

4. Compared with the prior art, the heating device is not provided with an evaporator independently, and the refrigerating device is not provided with a condenser independently, so that at least one evaporator part and one condenser part are saved, the cost of the whole system is reduced, the noises of the saved evaporator and condenser are removed, and the noise of the system is reduced;

5. the outdoor heat exchanger can be selectively connected into the refrigerant circulation loop or not according to different working conditions, so that the application range of the integrated air conditioning system is wider.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an integrated air conditioning system according to an embodiment of the present utility model;

FIG. 2 is a schematic illustration of components of an integrated air conditioning system connected by piping;

FIG. 3 is a refrigerant flow diagram of the integrated air conditioning system under a first operating condition;

FIG. 4 is a refrigerant flow diagram of the integrated air conditioning system under a second operating condition;

FIG. 5 is a refrigerant flow diagram of the integrated air conditioning system under a third operating condition;

FIG. 6 is a refrigerant flow diagram of the integrated air conditioning system in a fourth operating condition;

FIG. 7 is a refrigerant flow diagram of the integrated air conditioning system under a fifth operating condition;

fig. 8 is a refrigerant flow diagram of the integrated air conditioning system under a sixth operating condition.

Reference numerals: 1. a first switching valve; 2. a second switching valve; 3. a third switching valve; 4. a fourth switching valve; 5. a fifth switching valve; 6. a seventh switching valve; 7. an eighth switching valve; 8. a sixth switching valve; 9. a ninth switching valve; 10. a third throttling device; 11. a first throttle device; 12. a second throttle device; 14. a one-way valve; 15. an indoor heat exchanger; 16. a condensing heat exchanger; 17. an evaporative heat exchanger; 18. an outdoor heat exchanger; 19. a compressor; 20. a first pipeline; 21. a second pipeline; 22. a liquid pipe; 23. a low pressure gas pipe; 24. a high pressure gas pipe; 25. an exhaust line; 26. an air suction line; 27. a pipeline at the other end of the outdoor heat exchanger; 151. one end of the indoor heat exchanger; 152. the other end of the indoor heat exchanger; 29. a pipeline at the other end of the indoor heat exchanger; 30. an air inlet pipeline of the condensing heat exchanger; 31. an air outlet pipeline of the condensing heat exchanger; 32. an air inlet pipeline of the evaporation heat exchanger; 33. an air outlet pipeline of the evaporation heat exchanger; 34. a pipeline at the other end of the first switch valve; 35. a pipeline at the other end of the second switch valve; 36. a pipeline at one end of the indoor heat exchanger; 38. a fourth throttling device; 101. the other end of the first switch valve; 201. the other end of the second switch valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1, an embodiment of the present utility model provides an integrated air conditioning system, which includes a compressor 19, a throttle device, a heating device, a cooling device, a heating and cooling device, and a valve mechanism. What needs to be explained here is: the heating device in this example has only a heating function, and the heating device may be a heat pump water heater or the like, and the cooling device has only a cooling function, and the cooling device may be a refrigerator, a freezer or the like. The heating and refrigerating device has both heating and refrigerating functions, and can be an air conditioner and the like.

The aforementioned heating device has a condensing heat exchanger 16, and the refrigerating device has an evaporating heat exchanger 17. What needs to be explained here is: in contrast to the existing heating device, the heating device in this example is provided with only the condensing heat exchanger 16, and no evaporator is provided separately. Also, the refrigeration apparatus in this example is provided with only the evaporation heat exchanger 17, and no condenser alone, as compared with the existing refrigeration apparatus.

The compressor 19, the condensation heat exchanger 16, the throttling device and the evaporation heat exchanger 17 are sequentially connected to form a refrigerant circulation loop, so that the condensation heat of the refrigerating device can be transmitted to the heating device for use, the recycling of the condensation heat is realized, the waste of heat is reduced, and the energy efficiency of the system is improved.

The heating and cooling apparatus has an indoor heat exchanger 15. The valve mechanism is used for connecting the indoor heat exchanger 15 into the refrigerant circulation loop, so that the indoor heat exchanger 15 is connected with the condensing heat exchanger 16 or the evaporating heat exchanger 17 in parallel.

When the indoor heat exchanger 15 is connected in parallel with the condensation heat exchanger 16, the indoor heat exchanger 15 is used as a condenser at this time, the indoor heat exchanger 15 is matched with the condensation heat exchanger 16 of the refrigerating device, and respective condensation heat can be transmitted to the heating device for use, so that the condensation heat is further recycled, the waste of heat can be further reduced, and the energy efficiency of the system is further improved.

When the indoor heat exchanger 15 is connected in parallel with the evaporation heat exchanger 17, the indoor heat exchanger 15 is used as an evaporator at the moment, and the indoor heat exchanger 15 is matched with the evaporation heat exchanger 17 of the heating device, so that the condensation heat of the refrigerating device can be utilized together, the waste of heat is avoided, and the energy efficiency of the system is further improved.

In the above example, the heating apparatus of the present utility model is not provided with an evaporator alone, and the cooling apparatus is not provided with a condenser alone, compared to the prior art, thereby saving at least one evaporator part and one condenser part, thus reducing the cost of the entire system, and eliminating the noise of the omitted evaporator and condenser, thus reducing the noise of the system.

In order to achieve the aforementioned function of connecting the indoor heat exchanger 15 to the refrigerant circulation circuit and connecting the indoor heat exchanger 15 to the condensing heat exchanger 16 or the evaporating heat exchanger 17 in parallel, the valve mechanism may include a first switching valve 1 and a second switching valve 2 as shown in fig. 1. One end of both the first switch valve 1 and the second switch valve 2 is used for being connected with a pipeline 36 at one end of the indoor heat exchanger, and the other end 152 of the indoor heat exchanger is used for being connected with an air outlet pipeline 31 of the condensing heat exchanger and an air inlet pipeline 32 of the evaporating heat exchanger. The other end 101 of the first switching valve is connected to the discharge line 25 of the compressor 19, and the other end 201 of the second switching valve is connected to the suction line 26 of the compressor 19.

In the above example, the indoor heat exchanger 15 may be connected in parallel with the condensing heat exchanger 16 when the first switching valve 1 is opened and the second switching valve 2 is closed. The indoor heat exchanger 15 may be connected in parallel with the evaporation heat exchanger 17 when the first switching valve 1 is closed and the second switching valve 2 is opened.

In a specific application example, the valve mechanism may further include a third switch valve 3, where the third switch valve 3 is disposed on a pipe 29 at the other end of the indoor heat exchanger, so that the indoor heat exchanger 15 may be disconnected from the refrigerant circuit if necessary, for example, when the heating and refrigerating apparatus is not needed, the third switch valve 3 may be closed.

The valve mechanism further comprises a fourth switch valve 4, and the fourth switch valve 4 is arranged on the air outlet pipeline 31 of the condensing heat exchanger, so that the condensing heat exchanger 16 and the refrigerant loop can be disconnected according to the need, for example, when a heating device is not needed, the fourth switch valve 4 can be closed.

The valve mechanism may further comprise a fifth switch valve 5, where the fifth switch valve 5 is disposed on the air inlet line 32 of the evaporation heat exchanger, so that the evaporation heat exchanger 17 can be disconnected from the refrigerant circuit if necessary, for example, when the refrigeration device is not needed, the fifth switch valve 5 can be closed.

The valve mechanism may further comprise a sixth switching valve 8, the sixth switching valve 8 being arranged in the discharge line 25 of the compressor 19, so that the connection of the evaporation heat exchanger 17 and the condensation heat exchanger 16 to the refrigerant circuit can be disconnected as required, for example, when the use of the refrigerating device and the heating device is not required at the same time, the sixth switching valve 8 can be closed.

The valve mechanism may further include a check valve 14, where the check valve 14 is disposed on the outlet pipe 31 of the condensation heat exchanger, so as to prevent the refrigerant in the system from flowing back along the outlet pipe 31 of the condensation heat exchanger and causing impact damage to the condensation heat exchanger 16.

What needs to be explained here is: the aforementioned throttle device is used for throttling the refrigerant flowing into the evaporation heat exchanger 17. The throttling device is also used to throttle the refrigerant flowing into the indoor heat exchanger 15 when the indoor heat exchanger 15 is connected in parallel with the evaporation heat exchanger 17. In one specific example of application, the restriction device may comprise a first restriction device 11, a second restriction device 12 and a third restriction device 10. The first throttling device 11 is used for being arranged on an air outlet pipeline 31 of the condensing heat exchanger, and the second throttling device 12 is used for being arranged on an air inlet pipeline 32 of the evaporating heat exchanger; the third throttling means 10 are intended to be arranged on a pipe 29 at the other end of the indoor heat exchanger.

In the above example, since the corresponding throttling devices are disposed on the outlet pipe 31 of the condensation heat exchanger, the inlet pipe 32 of the evaporation heat exchanger, and the pipe 29 at the other end of the indoor heat exchanger, the function of the throttling devices can be achieved, so that the throttling devices can throttle the refrigerant flowing into the evaporation heat exchanger 17, and can also throttle the refrigerant flowing into the indoor heat exchanger 15 when the indoor heat exchanger 15 is connected in parallel with the evaporation heat exchanger 17.

In a specific application example, as shown in fig. 1, the aforementioned heating and cooling apparatus further has an outdoor heat exchanger 18. The valve mechanism is also used to connect the outdoor heat exchanger 18 to the refrigerant circulation circuit or disconnect the outdoor heat exchanger 18 from the refrigerant circulation circuit.

When the condensation heat generated by the system is equal to the absorbed evaporation heat, the outdoor heat exchanger 18 is not required to exchange heat, and the valve mechanism disconnects the outdoor heat exchanger 18 from the refrigerant circulation loop, so that the outdoor heat exchanger 18 does not participate in the circulation of the refrigerant.

When the condensation heat generated by the system is not equal to the evaporation heat absorbed, the outdoor heat exchanger 18 needs to be used for heat exchange, such as discharging excessive heat or absorbing heat from the outside, and the valve mechanism connects the outdoor heat exchanger 18 to the refrigerant circulation loop, so that the outdoor heat exchanger 18 is connected in parallel with the condensation heat exchanger 16 or the evaporation heat exchanger 17. When the outdoor heat exchanger 18 is connected in parallel with the condensing heat exchanger 16, the outdoor heat exchanger 18 is used as a condenser at this time. When the outdoor heat exchanger 18 is connected in parallel with the evaporation heat exchanger 17, the outdoor heat exchanger 18 is used as an evaporator at this time.

In the above example, the outdoor heat exchanger 18 may be selectively connected to the refrigerant circulation circuit or not according to different working conditions, so that the application range of the integrated air conditioning system of the present utility model is wider.

In order to realize the function of the valve mechanism, the valve mechanism may connect or disconnect the outdoor heat exchanger 18 to or from the refrigerant circulation circuit, and when the outdoor heat exchanger 18 is connected to or from the refrigerant circulation circuit, connect the outdoor heat exchanger 18 in parallel with the condensation heat exchanger 16 or the evaporation heat exchanger 17, as shown in fig. 1, one end of the outdoor heat exchanger 18 is connected to the exhaust port 191 of the compressor 19 through the first pipe 20, and one end of the outdoor heat exchanger 18 is also connected to the intake port 192 of the compressor 19 through the second pipe 21. The other end of the outdoor heat exchanger is connected to the outlet line 31 of the condensing heat exchanger and to the inlet line 32 of the evaporating heat exchanger. The valve mechanism includes a seventh switching valve 6, an eighth switching valve 7, and a ninth switching valve 9, the seventh switching valve 6 being provided on the first pipe 20, the eighth switching valve 7 being provided on the second pipe 21, the ninth switching valve 9 being provided on the pipe 27 at the other end of the outdoor heat exchanger.

In the above example, the connection of the outdoor heat exchanger 18 to the refrigerant circulation circuit may be disconnected when the seventh switching valve 6, the eighth switching valve 7, and the ninth switching valve 9 are all closed. The outdoor heat exchanger 18 may be connected in parallel with the condensation heat exchanger 16 when the seventh switching valve 6 is opened and the eighth switching valve 7 is closed and the ninth switching valve 9 is opened. When the seventh switching valve 6 is closed and the eighth switching valve 7 is opened and the ninth switching valve 9 is opened, the outdoor heat exchanger 18 can be connected in parallel with the evaporation heat exchanger 17.

What needs to be explained here is: when the other end 152 of the indoor heat exchanger is connected with the air outlet pipeline 31 of the condensing heat exchanger and the air inlet pipeline 32 of the evaporating heat exchanger, the other end 152 of the indoor heat exchanger is also connected with the pipeline 27 at the other end of the outdoor heat exchanger, so that the indoor heat exchanger 15 and the outdoor heat exchanger 18 can be matched for use.

In a specific application example, as shown in fig. 1, the integrated air conditioning system of the present utility model further includes a liquid pipe 22, a high-pressure air pipe 24, and a low-pressure air pipe 23. The liquid pipe 22, the high-pressure gas pipe 24 and the low-pressure gas pipe 23 are all used for conveying the refrigerant. Specifically, the liquid pipe 22, the high-pressure gas pipe 24, and the low-pressure gas pipe 23 are each used for conveying a refrigerant in different states. The air inlet pipe 32 of the evaporation heat exchanger, the air outlet pipe 31 of the condensation heat exchanger, the pipe 29 of the other end of the indoor heat exchanger, and the pipe 27 of the other end of the outdoor heat exchanger are all connected to the liquid pipe 22. The outlet line 33 of the evaporative heat exchanger, the other end 201 of the second on-off valve and the suction line 26 of the compressor 19 are all adapted to be connected to the low pressure air line 23. The inlet line 30 of the condensing heat exchanger, the other end 101 of the first switching valve and the outlet line 25 of the compressor 19 are all intended to be connected to the high-pressure gas line 24.

In the above example, the heating and cooling device, the cooling device, and the heating device can be coupled together by the liquid pipe 22, the high-pressure gas pipe 24, and the low-pressure gas pipe 23 provided, and the flow of the refrigerant in different states is facilitated.

What needs to be explained here is: the throttling device is also used for throttling the refrigerant flowing into the outdoor heat exchanger 18 when the outdoor heat exchanger 18 is connected in parallel with the evaporation heat exchanger 17. In a specific example of application, as shown in fig. 1, the throttling means may comprise a fourth throttling means 38, which fourth throttling means 38 is arranged on the line 27 at the other end of the outdoor heat exchanger for throttling the refrigerant flowing into the outdoor heat exchanger 18 when the outdoor heat exchanger 18 is connected in parallel with the evaporation heat exchanger 17.

What needs to be explained here is: the above-mentioned each switch valve may be an electromagnetic valve, and each throttle device may be a throttle valve. The integrated air conditioning system of the utility model can also comprise a controller, wherein the controller is used for controlling the opening and closing of the switch valves.

The working principle and preferred embodiments of the present utility model are described below.

The utility model aims at designing an integrated air conditioning system which is used for coupling a refrigerating device, a heating device and a heating and refrigerating device into a system, and can fully utilize the condensation heat generated by the system, realize the recycling of the condensation heat, save energy and improve the overall energy efficiency of the system. And the whole system can work under different working conditions by formulating control logic, so that the working range is wider.

In a specific application example, the refrigerating device may be a refrigerator, a freezer or a freezer, the heating device may be a heat pump water heater, and the heating and refrigerating device may be an air conditioner. The heating and refrigerating device, the refrigerating device and the heating device can be coupled together through the high-pressure air pipe 24, the low-pressure air pipe 23 and the liquid pipe 22 to form the integrated air conditioning system. The working principle of the integrated air conditioning system under different working conditions is specifically described below, wherein fig. 2 shows a schematic diagram of the connection of the components of the integrated air conditioning system through pipelines.

1. In the first working condition, the heating and refrigerating device is in a refrigerating state, the sum of the cooling load of the heating and refrigerating device and the load of the refrigerating device is larger than the load of the heating device, and the condensation heat generated by the integrated air conditioning system is larger than the evaporation heat absorbed by the system, so that the outdoor heat exchanger 18 is required to release heat. Under the first working condition, the seventh switch valve 6 and the sixth switch valve 8 are opened, the eighth switch valve 7 is closed, the ninth switch valve 9 is opened, the first switch valve 1 is closed, the second switch valve 2 is opened, a part of high-temperature and high-pressure gas discharged from the compressor 19 enters a condensing heat exchanger 16 of the heating device to condense and release heat, and the other part enters an outdoor heat exchanger 18 to condense and release heat to dissipate redundant heat generated by both the heating and refrigerating devices; the refrigerant entering the outdoor heat exchanger 18 is converged with the refrigerant flowing out of the condensing heat exchanger 16 after passing through the fourth throttling device, then one part of the refrigerant enters the indoor heat exchanger 15 of the heating and refrigerating device through the third throttling device 10 and the third switching valve 3, the other part of the refrigerant enters the evaporating heat exchanger 17 of the refrigerating device through the second throttling device 12 and the fifth switching valve 5, and low-pressure gas flowing out of the indoor heat exchanger 15 and the evaporating heat exchanger 17 enters the air suction pipeline 26 of the compressor 19 to complete a cycle. The circulation flow is shown in the figure.

2. In the second working condition, the heating and refrigerating device is in a refrigerating state, the sum of the cold load of the heating and refrigerating device and the load of the refrigerating device is equal to the load of the heating device, and the condensation heat generated by the integrated air conditioning system is equal to the evaporation heat absorbed by the system, so that the outdoor heat exchanger 18 is not needed to exchange heat. Under the second working condition, the sixth switch valve 8 is opened, the seventh switch valve 6 and the eighth switch valve 7 are closed, the ninth switch valve 9 is closed, the first switch valve 1 is closed, the second switch valve 2 is opened, the high-temperature and high-pressure gas flowing out from the compressor 19 enters the high-pressure gas pipe 24 and then enters the condensing heat exchanger 16 of the heating device to condense and release heat, the high-temperature and high-pressure gas enters the liquid pipe 22 through the fourth switch valve 4 and the first throttling device 11, then enters the indoor heat exchanger 15 of the heating and refrigerating device and the evaporating heat exchanger 17 of the refrigerating device respectively to evaporate and absorb heat, then enters the low-pressure gas pipe 23 after merging, and then enters the compressor 19 to complete one cycle. The circulation flow is shown in the figure.

3. In the third working condition, the heating and refrigerating device is in a refrigerating state, the sum of the cooling load of the heating and refrigerating device and the load of the refrigerating device is smaller than the load of the heating device, and the condensation heat generated by the integrated air conditioning system is smaller than the evaporation heat absorbed by the system, so that the outdoor heat exchanger 18 is required to absorb heat. In this third condition, the eighth switching valve 7 and the sixth switching valve 8 are opened, the seventh switching valve 6 is closed, the ninth switching valve 9 is opened, the first switching valve 1 is closed, and the second switching valve 2 is opened. The circulation flow is shown in the figure.

4. In the fourth working condition, the heating and refrigerating device is in a heating state, the sum of the heat load of the heating and refrigerating device and the heat load of the heating and refrigerating device is larger than the cold load of the refrigerating device, the evaporation heat generated by the integrated air conditioning system is larger than the absorbed condensation heat, the outdoor heat exchanger 18 is required to be utilized for releasing heat at the moment, the seventh switch valve 6 and the sixth switch valve 8 are opened, the eighth switch valve 7 is closed, the ninth switch valve 9 is opened, the second switch valve 2 is closed, the first switch valve 1 is opened, and the circulation flow is shown in the figure.

5. Under the fifth working condition, the heating and refrigerating device is in a heating state, the sum of the heat load of the heating and refrigerating device and the heat load of the heating and refrigerating device is equal to the cold load of the refrigerating device, the evaporation heat generated by the integrated air conditioning system is equal to the absorbed condensation heat, the outdoor heat exchanger 18 is not required to be used for exchanging heat, at the moment, the sixth switch valve 8 is opened, the seventh switch valve 6 and the eighth switch valve 7 are closed, the ninth switch valve 9 is closed, the second switch valve 2 is closed, the first switch valve 1 is opened, and the circulation flow is shown as the figure.

6. Under the sixth working condition, the heating and refrigerating device is in a heating state, the sum of the heat load of the heating and refrigerating device and the heat load of the heating and refrigerating device is smaller than the cold load of the refrigerating device, the evaporation heat generated by the integrated air conditioning system is smaller than the absorbed condensation heat, and the outdoor heat exchanger 18 needs to be utilized to absorb heat, at the moment, the eighth switch valve 7 and the sixth switch valve 8 are opened, the seventh switch valve 6 is closed, the ninth switch valve 9 is opened, the second switch valve 2 is closed, the first switch valve 1 is opened, and the circulation flow is shown as the figure.

The refrigerating circuit and the heating circuit are the most basic refrigerating and heating cycles, and the circuit modification aiming at refrigerating and heating is within the protection scope of the system, such as adding recooling, backheating, air supplementing, multi-stage compression and the like.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (12)

1. An integrated air conditioning system is characterized by comprising a compressor (19), a throttling device, a heating device, a refrigerating device, a heating and refrigerating device and a valve mechanism;

the heating device is provided with a condensing heat exchanger (16), the refrigerating device is provided with an evaporating heat exchanger (17), and the compressor (19), the condensing heat exchanger (16), the throttling device and the evaporating heat exchanger (17) are sequentially connected to form a refrigerant circulation loop;

the heating and refrigerating device is provided with an indoor heat exchanger (15); the valve mechanism is used for connecting the indoor heat exchanger (15) into the refrigerant circulation loop, so that the indoor heat exchanger (15) is connected with the condensing heat exchanger (16) or the evaporating heat exchanger (17) in parallel.

2. The integrated air conditioning system according to claim 1, characterized in that the valve mechanism comprises a first switching valve (1) and a second switching valve (2);

one end of each of the first switch valve (1) and the second switch valve (2) is used for being connected with a pipeline (36) of one end of the indoor heat exchanger, the other end (152) of the indoor heat exchanger is used for being connected with an air outlet pipeline (31) of the condensing heat exchanger and an air inlet pipeline (32) of the evaporating heat exchanger, the other end (101) of the first switch valve is used for being connected with an air outlet pipeline (25) of the compressor (19), and the other end (201) of the second switch valve is used for being connected with an air suction pipeline (26) of the compressor (19).

3. The integrated air conditioning system of claim 2, wherein,

the first switch valve (1) is opened, and the second switch valve (2) is closed, so that the indoor heat exchanger (15) is connected with the condensing heat exchanger (16) in parallel;

or, the first switch valve (1) is closed, and the second switch valve (2) is opened, so that the indoor heat exchanger (15) and the evaporation heat exchanger (17) are connected in parallel.

4. The integrated air conditioning system of claim 2, wherein,

the valve mechanism further comprises a third switch valve (3), and the third switch valve (3) is used for being arranged on a pipeline (29) at the other end of the indoor heat exchanger;

and/or the valve mechanism further comprises a fourth switch valve (4), wherein the fourth switch valve (4) is used for being arranged on an air outlet pipeline (31) of the condensing heat exchanger;

and/or the valve mechanism further comprises a fifth on-off valve (5), the fifth on-off valve (5) being for being arranged on an inlet line (32) of the evaporative heat exchanger;

and/or the valve mechanism further comprises a sixth switching valve (8), the sixth switching valve (8) being intended to be arranged on a discharge line (25) of the compressor (19);

and/or the valve mechanism further comprises a one-way valve (14), the one-way valve (14) being arranged for being on an outlet line (31) of the condensing heat exchanger.

5. The integrated air conditioning system of any of claims 1 to 4, wherein,

the throttling device comprises a first throttling device (11), a second throttling device (12) and a third throttling device (10);

the first throttling device (11) is used for being arranged on an air outlet pipeline (31) of the condensing heat exchanger, and the second throttling device (12) is used for being arranged on an air inlet pipeline (32) of the evaporating heat exchanger; the third throttling device (10) is arranged on a pipeline (29) at the other end of the indoor heat exchanger.

6. An integrated air conditioning system according to any of claims 1 to 4, characterized in that the heating and cooling device further has an outdoor heat exchanger (18);

the valve mechanism is also used for connecting the outdoor heat exchanger (18) into the refrigerant circulation loop or disconnecting the outdoor heat exchanger (18) from the refrigerant circulation loop, and connecting the outdoor heat exchanger (18) with the condensing heat exchanger (16) or the evaporating heat exchanger (17) in parallel when the outdoor heat exchanger (18) is connected into the refrigerant circulation loop.

7. The integrated air conditioning system of claim 6, wherein,

one end of the outdoor heat exchanger (18) is used for being connected with an exhaust port (191) of the compressor (19) through a first pipeline (20), and one end of the outdoor heat exchanger (18) is used for being connected with an air suction port (192) of the compressor (19) through a second pipeline (21); the pipeline (27) at the other end of the outdoor heat exchanger is used for being connected with the air outlet pipeline (31) of the condensing heat exchanger and the air inlet pipeline (32) of the evaporating heat exchanger;

the valve mechanism comprises a seventh switch valve (6), an eighth switch valve (7) and a ninth switch valve (9), wherein the seventh switch valve (6) is used for being arranged on the first pipeline (20), the eighth switch valve (7) is used for being arranged on the second pipeline (21), and the ninth switch valve (9) is used for being arranged on a pipeline (27) at the other end of the outdoor heat exchanger.

8. The integrated air conditioning system of claim 7, wherein,

the seventh switch valve (6), the eighth switch valve (7) and the ninth switch valve (9) are all closed so as to disconnect the outdoor heat exchanger (18) from the refrigerant circulation loop;

or, the seventh switch valve (6) is opened, the eighth switch valve (7) is closed, and the ninth switch valve (9) is opened, so that the outdoor heat exchanger (18) is connected in parallel with the condensing heat exchanger (16);

or, the seventh switching valve (6) is closed, the eighth switching valve (7) is opened, and the ninth switching valve (9) is opened, so that the outdoor heat exchanger (18) is connected in parallel with the evaporation heat exchanger (17).

9. The integrated air conditioning system of claim 7, wherein,

when the other end (152) of the indoor heat exchanger is connected with the air outlet pipeline (31) of the condensing heat exchanger and the air inlet pipeline (32) of the evaporating heat exchanger, the other end (152) of the indoor heat exchanger is also connected with the pipeline (27) of the other end of the outdoor heat exchanger.

10. The integrated air conditioning system according to claim 9, further comprising a liquid pipe (22), a high pressure air pipe (24) and a low pressure air pipe (23), wherein the liquid pipe (22), the high pressure air pipe (24) and the low pressure air pipe (23) are all used for transmitting a refrigerant; when the valve mechanism comprises a first switching valve (1) and a second switching valve (2);

the air inlet pipeline (32) of the evaporation heat exchanger, the air outlet pipeline (31) of the condensation heat exchanger, the pipeline (29) at the other end of the indoor heat exchanger and the pipeline (27) at the other end of the outdoor heat exchanger are all used for being connected to the liquid pipe (22);

the air outlet pipeline (33) of the evaporation heat exchanger, the pipeline (35) at the other end of the second switch valve and the air suction pipeline (26) of the compressor (19) are all used for being connected to a low-pressure air pipe (23);

the air inlet pipeline (30) of the condensing heat exchanger, the pipeline (34) at the other end of the first switch valve and the air outlet pipeline (25) of the compressor (19) are all used for being connected to a high-pressure air pipe (24).

11. The integrated air conditioning system of claim 6, wherein,

the throttling device comprises a fourth throttling device (38), and the fourth throttling device (38) is arranged on a pipeline (27) at the other end of the outdoor heat exchanger.

12. The integrated air conditioning system of any of claims 1 to 4, 7 to 11,

the heating and refrigerating device is an air conditioner; and/or the heating device is a heat pump water heater; and/or the refrigerating device is a refrigerator, a freezer or a freezer.