Air conditioning unit with drying function and control method thereof

Abstract

The application discloses an air conditioning unit with a drying function and a control method thereof, wherein the unit comprises: a heat pump unit, comprising: a compressor, a four-way valve and a throttling device connected in sequence; a first heat exchange water tank, a refrigerant pipeline between the first end of the four-way valve and the throttling device passing through the first heat exchange water tank and performing heat exchange with the first heat exchange water tank; a second heat exchange water tank, a refrigerant pipeline between the throttling device and the second end of the four-way valve passing through the second heat exchange water tank and performing heat exchange with the second heat exchange water tank; a drying device, comprising: a drying bin, a first condensation drying module and a second condensation drying module located in the drying bin, wherein the first condensation drying module is communicated with the first heat exchange water tank through a first waterway, and the second condensation drying module is communicated with the second heat exchange water tank through a second waterway. The application solves the problem that the condensation heat of the air conditioning system in the prior art is not fully utilized in daily operation, resulting in low energy utilization rate, and realizes efficient utilization of energy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioning unit with drying function and a control method thereof. BACKGROUND

[0002] Household air conditioners are increasingly popular, helping users improve comfort while releasing a large amount of condensing heat during operation. With the discharge of condensing heat, not only will it cause the ambient air temperature around the residential building to rise, forming a "heat island effect", but also because the heat is wasted and not utilized, it will also cause low energy utilization.

[0003] The common condensing heat recovery method at present is to recover the condensing heat to the heat exchange medium through the heat recovery heat exchanger, and then use the collected condensing heat for domestic water or other aspects through heat exchange of the heat exchange medium. The whole process requires a large number of heat exchanges, and in this process, the energy utilization efficiency is greatly reduced.

[0004] And the heat exchange medium commonly used is a coolant with good thermal properties, but the coolant has high requirements for equipment sealing and pressure resistance, and the coolant itself is expensive, which will greatly increase the heat recovery cost and is not conducive to popularization.

[0005] In view of the problem that the condensing heat of the air conditioning system in the related art is not fully utilized in daily operation, resulting in low energy utilization, an effective solution has not been proposed so far. SUMMARY

[0006] The present application provides an air conditioning unit with drying function and a control method thereof, to at least solve the problem that the condensing heat of the air conditioning system in the prior art is not fully utilized in daily operation, resulting in low energy utilization.

[0007] To solve the above technical problems, according to one aspect of an embodiment of the present application, a kind of air conditioning unit with drying function is provided, comprising: heat pump unit, comprising: compressor, four-way valve, throttling device connected in sequence;First heat exchange water tank, the refrigerant pipeline between the first end of the four-way valve and the throttling device passes through the first heat exchange water tank, and carries out heat exchange with the first heat exchange water tank;Second heat exchange water tank, the refrigerant pipeline between the throttling device and the second end of the four-way valve passes through the second heat exchange water tank, and carries out heat exchange with the second heat exchange water tank;Drying equipment, comprising: drying bin, first condensing drying module and second condensing drying module located in the drying bin, wherein, the first condensing drying module is communicated with the first heat exchange water tank by first waterway, for when the heat pump unit refrigeration, using the heat of the first heat exchange water tank for the drying bin to carry out drying, when the heat pump unit heating, using the cold of the first heat exchange water tank for the drying bin to carry out condensation drainage;The second condensing drying module is communicated with the second heat exchange water tank by second waterway, for when the heat pump unit refrigeration, using the cold of the second heat exchange water tank for the drying bin to carry out condensation drainage, when the heat pump unit heating, using the heat of the second heat exchange water tank for the drying bin to carry out drying.

[0008] Further, the heat pump unit further comprises: indoor side, comprising indoor heat exchanger and indoor electromagnetic valve, the indoor heat exchanger and the indoor electromagnetic valve are communicated by third waterway, the third waterway is connected with the second heat exchange water tank, for using the second heat exchange water tank and the indoor side to carry out heat exchange.

[0009] Further, the heat pump unit further comprises: electromagnetic valve, on the pipeline between the throttling device and the first heat exchange water tank;Backup heat exchanger is arranged in parallel with the electromagnetic valve;Wherein, when the first heat exchange water tank cannot meet the outdoor side heat exchange demand, the electromagnetic valve is closed, and the backup heat exchanger is used to carry out heat exchange with the first heat exchange water tank.

[0010] Further, the drying equipment further comprises: water receiving tray, located below the first condensing drying module and the second condensing drying module, for receiving condensation drainage;First circulating water pump, located on the first waterway, for accelerating water circulation of the first waterway;Second circulating water pump, located on the second waterway, for accelerating water circulation of the second waterway;The heat pump unit further comprises: third circulating water pump, located on the third waterway, for controlling water flow of the third waterway.

[0011] Further, it further comprises: first domestic water module, connected with the first heat exchange water tank;Second domestic water module, connected with the second heat exchange water tank.

[0012] According to another aspect of the embodiment of the present application, a control method of an air conditioning unit with drying function is provided, which is applied to the air conditioning unit with drying function as described above, and the method comprises: detecting an operation mode of the air conditioning unit with drying function; wherein the operation mode at least comprises: a refrigeration drying mode, a refrigeration mode, a heating drying mode, a heating mode, and a drying mode; and controlling the operation of a heat pump unit and a drying device according to the operation mode.

[0013] Further, when the operation mode is the refrigeration drying mode, the operation of the heat pump unit and the drying device according to the operation mode comprises: controlling a four-way valve of the heat pump unit to enter the refrigeration mode, and controlling an electromagnetic valve and a third circulating water pump of the heat pump unit to be turned on; obtaining a refrigerant temperature of a refrigerant pipeline between a throttling device of the heat pump unit and the electromagnetic valve, and controlling an opening degree of the throttling device of the heat pump unit according to the refrigerant temperature; and controlling the first circulating water pump and the second circulating water pump of the drying device to be turned on.

[0014] Further, when the operation mode is the refrigeration mode, the operation of the heat pump unit and the drying device according to the operation mode comprises: controlling a four-way valve of the heat pump unit to enter the refrigeration mode, and controlling an electromagnetic valve and a third circulating water pump of the heat pump unit to be turned on; when hot water is not needed in the first domestic water module, controlling the electromagnetic valve to be turned off, and using a standby heat exchanger to jointly perform heat exchange with the first heat exchange water tank; obtaining a refrigerant temperature of a refrigerant pipeline between a throttling device of the heat pump unit and the electromagnetic valve, and controlling an opening degree of the throttling device of the heat pump unit according to the refrigerant temperature; and controlling the first circulating water pump and the second circulating water pump of the drying device to be turned off.

[0015] Further, when the operation mode is the heating drying mode, the operation of the heat pump unit and the drying device according to the operation mode comprises: controlling a four-way valve of the heat pump unit to enter the heating mode, and controlling a third circulating water pump of the heat pump unit to be turned on, and controlling an electromagnetic valve of the heat pump unit to be turned off, and using a standby heat exchanger to jointly perform heat exchange with the first heat exchange water tank; obtaining a refrigerant temperature of a refrigerant pipeline between a throttling device of the heat pump unit and the electromagnetic valve, and controlling an opening degree of the throttling device of the heat pump unit according to the refrigerant temperature; and controlling the first circulating water pump and the second circulating water pump of the drying device to be turned on.

[0016] Further, when the operation mode is the heating mode, the operation of the heat pump unit and the drying device is controlled according to the operation mode, including: controlling the four-way valve of the heat pump unit to enter the heating mode, the third circulating water pump of the heat pump unit to be turned on, the electromagnetic valve of the heat pump unit to be closed, and the standby heat exchanger to be used for heat exchange with the first heat exchange water tank; obtaining the refrigerant temperature of the refrigerant pipeline between the throttling device of the heat pump unit and the electromagnetic valve, and controlling the opening degree of the throttling device of the heat pump unit according to the refrigerant temperature; controlling the first circulating water pump and the second circulating water pump of the drying device to be closed.

[0017] Further, when the operation mode is the drying mode, the operation of the heat pump unit and the drying device is controlled according to the operation mode, including: controlling the four-way valve of the heat pump unit to enter the cooling mode, the electromagnetic valve of the heat pump unit to be turned on; obtaining the refrigerant temperature of the refrigerant pipeline between the throttling device of the heat pump unit and the electromagnetic valve, and controlling the opening degree of the throttling device of the heat pump unit according to the refrigerant temperature; controlling the first circulating water pump and the second circulating water pump of the drying device to be turned on.

[0018] According to another aspect of the embodiments of the present application, a storage medium containing computer executable instructions is provided, which, when executed by a computer processor, is used to perform the control method of the air conditioning unit with drying function as described above.

[0019] This invention provides a heat pump system integrated with a dryer, comprising: a heat pump unit, wherein the heat pump system uses a first hot water exchange tank as a condenser, allowing the condensation heat to be fully absorbed by the water in the tank, thereby further utilizing the condensation heat. For this purpose, the first condensing drying module in the drying equipment is connected to the first hot water exchange tank via a first water circuit, so that when the heat pump unit is cooling, the heat from the first hot water exchange tank is used to dry the drying chamber. This allows the heat pump system to meet daily cooling and heating functions while simultaneously utilizing the condensation heat from the air conditioning system for drying and the evaporation cooling energy for condensation drainage, achieving efficient energy utilization. Furthermore, to achieve the complete functionality of the dryer, a second condensing drying module is also provided, using a second hot water exchange tank as an evaporator, so that the water cooled by evaporation becomes condensate for condensation drainage of the drying chamber. The first and second condensing drying modules are interchangeable, allowing the heat pump system to perform condensation drainage and drying of the drying chamber regardless of whether it is in cooling or heating mode. Therefore, the air conditioning unit with drying function in this invention effectively solves the problem of low energy utilization caused by the underutilization of condensation heat in the prior art, achieving high-efficiency energy utilization, and fully meeting the condensation drainage and drying functions of the dryer, enriching the functions of the unit. Compared with the system of full-process flowing refrigerant heat exchange, the dryer uses water as the heat exchange medium, which is not only simpler in structure, more convenient to install, and lower in cost. Attached Figure Description

[0020] Figure 1 This is an optional structural schematic diagram of an air conditioning unit with a drying function according to an embodiment of the present invention;

[0021] Figure 2 This is an optional flowchart of a control method for an air conditioning unit with a drying function according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the operation of an air conditioning unit in refrigeration and drying mode according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the operation of an air conditioning unit in cooling mode according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the operation of an air conditioning unit in heating and drying mode according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the operation of an air conditioning unit in heating mode according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the operation of an air conditioning unit in drying mode according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] 1, compressor; 2, four-way valve; 3, first heat exchange water tank; 4, dryer; 5, temperature sensing bag; 6, standby heat exchanger; 7, first circulating water pump; 8, first electromagnetic valve; 9, second electromagnetic valve; 10, third electromagnetic valve; 11, fourth electromagnetic valve; 12, indoor side; 13, indoor heat exchanger; 14, second circulating water pump; 15, electromagnetic valve; 16, drying bin; 17, second condensate drainage module; 18, first condensate drainage module; 19, water receiving tray; 20, first domestic water module; 21, second domestic water module; 22, third circulating water pump; 23, throttling device; 24, second heat exchange water tank. DETAILED DESCRIPTION

[0029] In order to make the objects, technical solutions and advantages of the present application clearer, the following will further describe the present application with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall into the protection scope of the present application.

[0030] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0031] It should be understood that the term "and / or" used herein only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0032] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe the controllers, these controllers should not be limited to these terms. These terms are only used to distinguish the controllers connected to different devices. For example, the first controller can also be referred to as the second controller, and similarly, the second controller can also be referred to as the first controller without departing from the scope of the embodiments of the present application.

[0033] Depending on the context, the word "if" as used herein can be interpreted to mean "when" or "while" or "in response to determining" or "in response to detecting." Similarly, the phrase "if it is determined" or "if [a stated condition or event] is detected" can be interpreted to mean "upon determining" or "in response to determining" or "upon detecting [the stated condition or event]" or "in response to detecting [the stated condition or event]."

[0034] It is also to be noted that the terms "comprising", "including", and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or process that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such product or process. An element proceeded by "comprises a" does not, without more constraints, exclude the existence of additional identical elements in the product or process that comprises the recited element.

[0035] The preferred embodiments of the present application will be described in detail below with reference to the drawings.

[0036] Embodiment 1

[0037] In the preferred embodiment 1 of the present application, an air conditioning unit with drying function is provided, in particular, Figure 1 An optional structural schematic diagram of the unit is shown, as shown in Figure 1 The unit comprises:

[0038] The heat pump unit comprises: a compressor 1, a four-way valve 2, and a throttling device 23 connected in sequence; a first heat exchange water tank 3, a refrigerant pipeline between the throttling device and the four-way valve 2 passing through the first heat exchange water tank 3 and exchanging heat with the first heat exchange water tank 3; a second heat exchange water tank 24, a refrigerant pipeline between the throttling device 23 and the second end of the four-way valve 2 passing through the second heat exchange water tank 24 and exchanging heat with the second heat exchange water tank 24;

[0039] The drying equipment comprises a drying bin 16, a first condensation drying module 18 and a second condensation drying module 17 located in the drying bin 16, wherein the first condensation drying module 18 is communicated with the first heat exchange water tank 3 through a first water channel, and is used for drying the drying bin 16 by using the heat of the first heat exchange water tank 3 when the heat pump unit is in refrigeration mode, and is used for condensing and draining water of the drying bin 16 by using the cold of the first heat exchange water tank 3 when the heat pump unit is in heating mode; the second condensation drying module 17 is communicated with the second heat exchange water tank 24 through a second water channel, and is used for condensing and draining water of the drying bin 16 by using the cold of the second heat exchange water tank 24 when the heat pump unit is in refrigeration mode, and is used for drying the drying bin 16 by using the heat of the second heat exchange water tank 24 when the heat pump unit is in heating mode. The drying machine is provided with the drying module and the condensation and drainage module which can interchange functions, so that the air conditioning system can meet the daily refrigeration and heating functions, and can perform drying operation by using the condensation heat of the air conditioning system and can perform condensation and drainage operation by using the evaporation cold, thereby realizing efficient utilization of energy. The refrigerant flows in the flow path of the heat pump unit, and the drying machine exchanges heat with the water tank and the pump system, so as to achieve the drying and condensation and drainage functions in the drying machine. Compared with the system in which the refrigerant flows in the whole heat exchange process, the system uses water as the medium in the partial heat exchange process, and has simpler structure, is more convenient to install and has lower cost.

[0040] In the above embodiment, the heat pump system matched with the drying machine comprises a heat pump unit, the heat pump system uses the first heat exchange water tank as a condenser, so that the condensation heat is fully absorbed by the water in the water tank, thereby further realizing utilization of the condensation heat. Therefore, the first condensation drying module in the drying equipment is communicated with the first heat exchange water tank through a first water channel, so as to dry the drying bin by using the heat of the first heat exchange water tank when the heat pump unit is in refrigeration mode, and to condense and drain water of the drying bin by using the cold of the first heat exchange water tank when the heat pump unit is in heating mode, so that the heat pump system can meet the daily refrigeration and heating functions, and can perform drying operation by using the condensation heat of the air conditioning system and can perform condensation and drainage operation by using the evaporation cold, thereby realizing efficient utilization of energy. In addition, in order to realize the complete function of the drying machine, the drying machine is further provided with a second condensation drying module, the second heat exchange water tank is used as an evaporator, so that the water after evaporation cooling is used as condensation water to condense and drain water of the drying bin. The first condensation drying module and the second condensation drying module can interchange functions, so that the drying bin can be condensed and drained and dried when the heat pump system is in refrigeration mode or heating mode. Therefore, by using the air conditioning unit with the drying function in the present application, the problem that the condensation heat is not fully utilized in the prior art and the energy utilization rate is low is effectively solved, the energy is efficiently utilized, the condensation and drainage and drying functions of the drying machine are fully met, the function of the unit is enriched, and compared with the system in which the refrigerant flows in the whole heat exchange process, the drying machine uses water as the heat exchange medium, so that the structure is simpler, the installation is more convenient and the cost is lower.

[0041] As Figure 1As shown, the air conditioning unit should have at least one indoor unit, a compressor, a heat pump dryer with a drying module and a condensing drainage module, a throttling device for controlling the refrigerant flow of the heat exchanger, and a standby condenser and water tank to help the outdoor unit heat exchange. The air conditioning system should have at least refrigeration and heating functions. The indoor side of the air conditioning unit can include multiple sets of heat exchangers and control valves to meet the heat exchange needs of multiple rooms.

[0042] Therefore, the heat pump unit further comprises: an indoor side 12, including an indoor heat exchanger 13 and indoor electromagnetic valves 8-11, the indoor heat exchanger 13 and the indoor electromagnetic valves are connected by a third water circuit, the third water circuit is connected with the second heat exchange water tank 24, for heat exchange between the second heat exchange water tank 24 and the indoor side 12. The heat pump unit further comprises: a third circulating water pump 22 located on the third water circuit, for controlling the water flow of the third water circuit. Using water as the household heat transfer medium, the equipment structure is simpler, and the installation is flexible and reliable. And directly heat exchanges with the second heat exchange water tank 24, avoiding energy loss caused by multiple and multiple medium heat exchange, improving energy utilization.

[0043] In a preferred embodiment of the present application, the first heat exchange water tank 3 serves as a condenser, thereby realizing complete absorption of condensing heat. Since the air conditioning unit can realize multiple functions, such as refrigeration operation and long-time non-use of hot water, the first heat exchange water tank 3 cannot meet the heat exchange demand of the indoor side, therefore, the heat pump unit further comprises: an electromagnetic valve 15 located on the pipeline between the throttling device and the first heat exchange water tank 3; a standby heat exchanger 6 arranged in parallel with the electromagnetic valve 15; wherein when the first heat exchange water tank 3 cannot meet the heat exchange demand of the outdoor side, the electromagnetic valve 15 is closed, and the standby heat exchanger 6 is used for heat exchange with the first heat exchange water tank 3. The refrigerant after heat exchange of the first heat exchange water tank 3 enters the standby heat exchanger 6 for reheat exchange, which will release a small amount of condensing heat, but ensures the refrigeration effect of the unit and improves the operation stability of the unit.

[0044] As shown in the figure, Figure 1 As shown, the drying equipment further comprises: a water pan 19 located below the first condensing drying module 18 and the second condensing drying module 17, for receiving condensing drainage; a first circulating water pump 7 located on the first water circuit, for accelerating the water circulation of the first water circuit; a second circulating water pump 14 located on the second water circuit, for accelerating the water circulation of the second water circuit. The water pan can receive condensing drainage to avoid the trouble caused by condensing drainage discharge. The circulating water pump can control the opening and closing of the water circuit, and when the water tank and the condensing drying module need to be used for heat exchange, the circulating water pump is controlled to be turned on, the water circuit is turned on and the water circulation is accelerated, so that the heat exchange efficiency is improved, thereby improving the drying effect.

[0045] In addition, the air conditioning unit further comprises: a first domestic water module 20 connected with the first heat exchange water tank 3; and a second domestic water module 21 connected with the second heat exchange water tank 24. The domestic water module can directly provide hot water to users, so that the air conditioning unit in the application integrates refrigeration, heating, drying and domestic heating, has multiple functions, meets the needs of different users, reduces the cost of users, effectively improves the energy utilization rate, and achieves the effect of energy saving and emission reduction.

[0046] Embodiment 2

[0047] In the preferred embodiment 2 of the application, a control method of the air conditioning unit with drying function is provided, which is applied to the air conditioning unit with drying function in the above-mentioned embodiment 1. Specifically, Figure 2 An optional flow chart of the method is shown as Figure 2 The method comprises the following steps S202-S204:

[0048] S202: detecting the operation mode of the air conditioning unit with drying function; wherein the operation mode at least comprises: refrigeration and drying mode, refrigeration mode, heating and drying mode, heating mode, drying mode;

[0049] S204: controlling the operation of the heat pump unit and the drying equipment according to the operation mode.

[0050] In the above-mentioned embodiments, a heat pump system matched with a dryer is provided, which comprises: a heat pump unit, the heat pump system uses a first heat exchange water tank as a condenser, so that the condensation heat dissipation is fully absorbed by the water in the water tank, thereby further realizing the utilization of condensation heat dissipation. For this purpose, the first condensation and drying module in the drying equipment is in communication with the first heat exchange water tank through a first water path, so that when the heat pump unit is refrigerating, the heat of the first heat exchange water tank is used to dry the drying bin, so that the heat pump system meets the daily refrigeration and heating functions, and performs drying operation by utilizing the condensation heat of the air conditioning system and performs condensation and drainage operation by utilizing the evaporation cold energy, thereby realizing efficient utilization of energy. In addition, in order to realize the complete function of the dryer, the dryer is also provided with a second condensation and drying module, which uses a second heat exchange water tank as an evaporator, so that the water cooled by evaporation is used as condensation water to perform condensation and drainage on the drying bin. The first condensation and drying module and the second condensation and drying module can interchange functions, so that the drying bin can be condensed and drained and dried regardless of whether the heat pump system is in refrigeration mode or heating mode. Therefore, by using the air conditioning unit with drying function in the application, the problem of low energy utilization rate caused by insufficient utilization of condensation heat in the prior art is effectively solved, efficient utilization of energy is realized, and the condensation and drainage and drying functions of the dryer are completely met, the functions of the unit are enriched, and compared with the system of full-flowing refrigerant heat exchange, the dryer uses water as the heat exchange medium, which is simpler in structure, more convenient to install and lower in cost.

[0051] The operation mode of the air conditioning unit is described below in connection with different operation modes:

[0052] 1) In the refrigeration and drying mode, the operation of the heat pump unit and the drying device is controlled according to the operation mode, including: controlling the four-way valve of the heat pump unit to enter the refrigeration mode, and opening the electromagnetic valve and the third circulating water pump of the heat pump unit; obtaining the refrigerant temperature of the refrigerant pipeline between the throttling device and the electromagnetic valve of the heat pump unit, and controlling the opening degree of the throttling device of the heat pump unit according to the refrigerant temperature; controlling the first circulating water pump and the second circulating water pump of the drying device to be opened.

[0053] Figure 3 The operation schematic diagram of the refrigeration and drying mode air conditioning unit is shown as follows: Figure 3 As shown in the figure, when the refrigeration and drying are operated simultaneously, the refrigerant flows out through the compressor 1 and the four-way valve 2, first flows into the first heat exchange water tank 3 to release heat, then the electromagnetic valve 15 is opened, the refrigerant does not pass through the standby heat exchanger 6, passes through the temperature sensing bag 5 to detect the pipe temperature, determines the throttling strength of the throttling device 23, and finally the refrigerant passes through the throttling to enter the second heat exchange water tank 24 to absorb heat, and then flows back to the compressor 1 through the four-way valve 2.

[0054] The hot water in the first heat exchange water tank 3 can not only be guided into the drying module 18 of the drying machine 4 through the first circulating water pump 7 to perform heat release drying operation, but also can be used by opening the domestic water valve 20. The hot water flows back to the first heat exchange water tank 3 to absorb heat after completing the drying operation.

[0055] The cold water in the second heat exchange water tank 24 can be guided to the drying machine 4 and the indoor side 12 by the circulating water pumps 14 and 22. Part of the cold water is guided to flow into the condensing and draining module 17 of the drying machine 4 to perform heat absorption and condensing and draining work, and then flows back to the second heat exchange water tank 24 to release heat. The condensing water is discharged by the water collecting tray 19. Another part of the cold water is guided to flow into the indoor side 12 through the third circulating water pump 22, enters the indoor heat exchanger 13 through the electromagnetic valves 8, 9, 10 and 11 to absorb heat, and then flows back to the second heat exchange water tank 24 to release heat.

[0056] 2) In the refrigeration mode, the operation of the heat pump unit and the drying device is controlled according to the operation mode, including: controlling the four-way valve of the heat pump unit to enter the refrigeration mode, and opening the electromagnetic valve and the third circulating water pump of the heat pump unit; when the first domestic water module does not need to use hot water, controlling the electromagnetic valve to be closed, and using the standby heat exchanger to exchange heat with the first heat exchange water tank; obtaining the refrigerant temperature of the refrigerant pipeline between the throttling device and the electromagnetic valve of the heat pump unit, and controlling the opening degree of the throttling device of the heat pump unit according to the refrigerant temperature; controlling the first circulating water pump and the second circulating water pump of the drying device to be closed.

[0057] Figure 4 Fig. 2 shows a schematic diagram of the operation of the air conditioner unit in the cooling mode, as shown in Figure 4 As shown in Fig. 2, when only cooling is performed, the process is the same as the above cooling drying mode. During the water circulation process, the first circulating water pump 7 is closed, the hot water in the first heat exchange water tank 3 does not flow through the drying module 18 of the dryer 4, but can be used by opening the domestic water valve 20. The second circulating water pump 14 is closed, and the cold water does not flow through the condensing and draining module 17 of the dryer 4. The third circulating water pump 22 is opened, and the cold water in the second heat exchange water tank 24 flows through the third circulating water pump 22 into the indoor side 12 to absorb heat, and then returns to the second heat exchange water tank 24 for circulation.

[0058] At this time, the first heat exchange water tank 3 acts as a condenser to obtain hot water, and the dryer does not operate. The condensing heat is consumed by the first heat exchange water tank 3 to generate domestic hot water. If the hot water is not used for a long time, the standby heat exchanger 6 needs to be connected to help heat exchange. At this time, a small amount of condensing heat is generated and not consumed by the system. The indoor side 12 is in cooling operation, and the opening degree of the electronic expansion valve can be adjusted as needed to control the outlet air temperature.

[0059] 3) In the heating and drying mode, the operation of the heat pump unit and the drying equipment is controlled according to the operation mode, including: controlling the four-way valve of the heat pump unit to enter the heating mode, the third circulating water pump of the heat pump unit is opened, the electromagnetic valve of the heat pump unit is closed, and the standby heat exchanger is used for heat exchange with the first heat exchange water tank; obtaining the refrigerant temperature of the refrigerant pipeline between the throttling device and the electromagnetic valve of the heat pump unit, and controlling the opening degree of the throttling device of the heat pump unit according to the refrigerant temperature; controlling the first circulating water pump and the second circulating water pump of the drying equipment to be opened.

[0060] Figure 5 Fig. 3 shows a schematic diagram of the operation of the air conditioner unit in the heating and drying mode, as shown in Figure 5 As shown in Fig. 3, when heating and drying are performed simultaneously, the refrigerant flows through the compressor 1 and the four-way valve 2, enters the second heat exchange water tank 24 to release heat, then throttles through the throttling device 23, flows through the temperature sensing bag 5, at this time the electromagnetic valve 15 is closed, the refrigerant flows through the standby heat exchanger 6 to exchange heat, then flows into the first heat exchange water tank 3 to absorb heat and further increase the superheat degree of the refrigerant, and finally flows into the four-way valve 2 and returns to the compressor 1.

[0061] The cold water in the first heat exchange water tank 3 is guided by the first circulating water pump 7, flows into the condensing and draining module 17 of the dryer 4 to perform condensing and draining work, and then flows back to the first heat exchange water tank 3 to release heat and circulate. The condensate is discharged through the water collecting tray 19.

[0062] The hot water in the second heat exchange water tank 24 can be conducted to the dryer 4 and the indoor side 12 by the circulating water pumps 14, 22, and can be used by opening the domestic water valve 21. Part of the hot water is conducted to the drying module 17 of the dryer 4 by the second circulating water pump 14 to perform drying operation, and then flows back to the second heat exchange water tank 24 to absorb heat. At this time, the blowing direction of the warm air in the drying cabin 16 is clockwise blowing. Another part of the hot water is conducted to the indoor side 12 by the third circulating water pump 22, enters the indoor heat exchanger 13 through the electromagnetic valves 8, 9, 10, 11, and then flows back to the second heat exchange water tank 24 to absorb heat.

[0063] 4) In the heating mode, the operation of the heat pump unit and the drying equipment is controlled according to the operation mode, including: controlling the four-way valve of the heat pump unit to enter the heating mode, the third circulating water pump of the heat pump unit is opened, the electromagnetic valve of the heat pump unit is closed, and the standby heat exchanger is used to exchange heat with the first heat exchange water tank; the refrigerant temperature of the refrigerant pipeline between the throttling device and the electromagnetic valve of the heat pump unit is obtained, and the opening degree of the throttling device of the heat pump unit is controlled according to the refrigerant temperature; the first circulating water pump and the second circulating water pump of the drying equipment are controlled to be closed.

[0064] Figure 6 The operation schematic diagram of the air conditioning unit in the heating mode is shown as Figure 6 As shown, when only heating operation is performed, the process is the same as the above heating and drying mode. In the water circulation process, the second circulating water pump 14 is closed, and the hot water in the second heat exchange water tank 24 does not flow through the drying module 17 of the dryer 4. The third circulating water pump 22 is opened, the hot water enters the indoor side 12 to release heat through the water pump 22, and then returns to the second heat exchange water tank 24 to absorb heat. The first circulating water pump 7 is closed, and the cold water in the first heat exchange water tank 3 does not flow through the condensing and draining module 18 of the dryer 4.

[0065] 5) In the drying mode, the operation of the heat pump unit and the drying equipment is controlled according to the operation mode, including: controlling the four-way valve of the heat pump unit to enter the cooling mode, and the electromagnetic valve of the heat pump unit is opened; the refrigerant temperature of the refrigerant pipeline between the throttling device and the electromagnetic valve of the heat pump unit is obtained, and the opening degree of the throttling device of the heat pump unit is controlled according to the refrigerant temperature; the first circulating water pump and the second circulating water pump of the drying equipment are controlled to be opened.

[0066] Figure 7 The operation schematic diagram of the air conditioning unit in the drying mode is shown as Figure 7As shown, when only drying operation, four-way valve 2 access direction default is the same as the refrigeration operation mode. Refrigerant via compressor 1 and four-way valve 2 outflow, first into the first heat exchanger water tank 3 heat, then the solenoid valve 15 open, the refrigerant does not pass through the standby heat exchanger 6, through the temperature sensing bag 5 detection tube temperature, determine the throttling device 23 throttling strength, finally the refrigerant through the throttle into the second heat exchanger water tank 24 heat absorption, then through the four-way valve 2 back to the compressor 1.

[0067] The hot water in the first heat exchanger water tank 3 can not only be sent into the drying module 18 of the dryer 4 via the first circulating water pump 7 for heat release drying operation, but also be used by opening the domestic water valve 20. The hot water flows back to the first heat exchanger water tank 3 for heat absorption after completing the drying operation.

[0068] The cold water in the second heat exchanger water tank 24 can be sent to the dryer 4 by the second circulating water pump 14. The third circulating water pump 22 is closed, the cold water is sent into the condensing and draining module 17 of the dryer 4 by the second circulating water pump 14 for heat absorption and condensing and draining operation, and then flows back to the second heat exchanger water tank 24 for heat release circulation. The condensed water is discharged by the water pan 19.

[0069] The air conditioning system with a dryer is provided in the present application. The dryer is provided with a drying module and a condensing and draining module which can interchange functions, so that the air conditioning system meets the daily refrigeration and heating functions, and performs drying operation by using the condensing heat of the air conditioning system and performs condensing and draining operation by using the evaporation cold energy, thereby realizing efficient use of energy. The refrigerant flows in the flow path of the air conditioning indoor unit, and the heat pump dryer exchanges heat with the air conditioning system through the water tank, thereby achieving the purpose of realizing drying and condensing and draining functions in the dryer. Compared with the system in which the refrigerant flows throughout the heat exchange, part of the heat exchange uses water as a medium, the system structure is simpler, installation is more convenient, and cost is lower.

[0070] Embodiment 3

[0071] Based on the control method of the air conditioning unit with drying function provided in the above embodiment 2, a storage medium containing computer executable instructions for executing the control method of the air conditioning unit with drying function as described above is provided in the preferred embodiment 3 of the present application.

[0072] In the above-mentioned embodiments, a heat pump system matched with a dryer is provided, comprising: a heat pump unit, the heat pump system uses a first heat exchange water tank as a condenser, so that the condensation heat dissipation is fully absorbed by the water in the water tank, thereby further realizing the utilization of condensation heat dissipation. To this end, the first condensation drying module in the drying equipment is communicated with the first heat exchange water tank through a first water path, so that when the heat pump unit is refrigerating, the heat of the first heat exchange water tank is used to dry the drying chamber, so that the heat pump system meets the daily refrigeration and heating functions, and through the utilization of the condensation heat of the air conditioning system for drying operation and the utilization of the evaporation cold quantity for condensation drainage operation, the efficient utilization of energy is realized. In addition, in order to realize the complete function of the dryer, a second condensation drying module is also arranged in the dryer, and a second heat exchange water tank is used as an evaporator, so that the water cooled by evaporation is used as condensate water to condense and drain water from the drying chamber. The first condensation drying module and the second condensation drying module can interchange functions, so that the drying chamber can be condensation drained and dried regardless of whether the heat pump system is in a refrigeration mode or a heating mode. Therefore, through the air conditioning unit with a drying function in the present application, the problem of low energy utilization rate caused by insufficient utilization of condensation heat in the prior art is effectively solved, the efficient utilization of energy is realized, and the condensation drainage and drying functions of the dryer are fully met, the functions of the unit are enriched, and compared with the system of full-flow refrigerant heat exchange, the dryer uses water as the heat exchange medium, which is simpler in structure, more convenient to install and lower in cost.

[0073] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0074] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0075] In the several embodiments provided by the present application, it should be understood that the disclosed technology can be implemented in other ways. Of course, the unit embodiment described above is only illustrative, and for example, the division of units can be a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, unit or module, which can be electrical or other forms.

[0076] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the present embodiment scheme.

[0077] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0078] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various program codes that can be stored in the medium.

[0079] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0080] It should be understood that the present application is not limited to the precise structures described herein and illustrated in the drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the claims that follow.

Claims

1. An air conditioning unit with a drying function, characterized in that, include: A heat pump unit includes: a compressor, a four-way valve, and a throttling device connected in sequence; a first heat exchange tank, wherein a refrigerant pipeline between the first end of the four-way valve and the throttling device passes through the first heat exchange tank and exchanges heat with the first heat exchange tank; and a second heat exchange tank, wherein a refrigerant pipeline between the throttling device and the second end of the four-way valve passes through the second heat exchange tank and exchanges heat with the second heat exchange tank. A drying device includes: a drying chamber, a first condensing drying module and a second condensing drying module located within the drying chamber. The first condensing drying module is connected to a first hot water exchange tank via a first water path, and is used to dry the drying chamber using the heat from the first hot water exchange tank when the heat pump unit is cooling, and to perform condensation drainage from the drying chamber using the cooling capacity of the first hot water exchange tank when the heat pump unit is heating. The second condensing drying module is connected to a second hot water exchange tank via a second water path, and is used to perform condensation drainage from the drying chamber using the cooling capacity of the second hot water exchange tank when the heat pump unit is cooling, and to perform drying from the drying chamber using the heat from the second hot water exchange tank when the heat pump unit is heating. The indoor side includes an indoor heat exchanger and an indoor solenoid valve. The indoor heat exchanger and the indoor solenoid valve are connected by a third water passage, which is connected to the second hot water tank for heat exchange between the indoor side and the second hot water tank.

2. The air conditioning unit with drying function according to claim 1, characterized in that, The heat pump unit also includes: The solenoid valve is located on the pipeline between the throttling device and the first hot water exchange tank; A backup heat exchanger is provided in parallel with the solenoid valve; When the first hot water exchange tank cannot meet the heat exchange demand on the outdoor side, the solenoid valve is closed, and the backup heat exchanger is used to exchange heat together with the first hot water exchange tank.

3. The air conditioning unit with drying function according to claim 1, characterized in that, The drying equipment also includes: A water collection tray, located below the first condensation drying module and the second condensation drying module, is used to collect condensate drainage; The first circulating water pump is located on the first water path and is used to control the water flow rate of the first water path; The second circulating water pump is located on the second water line and is used to control the water flow rate of the second water line; The heat pump unit also includes: The third circulating water pump is located on the third water line and is used to control the water flow rate of the third water line.

4. The air conditioning unit with drying function according to claim 1, characterized in that, Also includes: The first domestic water module is connected to the first hot water exchange tank; The second domestic water module is connected to the second hot water exchange tank.

5. A control method for an air conditioning unit with a drying function, applied to an air conditioning unit with a drying function as described in any one of claims 1 to 4, characterized in that, The method includes: The operating mode of the air conditioning unit with drying function is detected; wherein the operating mode includes at least: cooling drying mode, cooling mode, heating drying mode, heating mode, and drying mode; The operation of the heat pump unit and drying equipment is controlled according to the operating mode.

6. The method according to claim 5, characterized in that, When the operating mode is the refrigeration and drying mode, controlling the operation of the heat pump unit and the drying equipment according to the operating mode includes: The four-way valve of the heat pump unit is controlled to enter the cooling mode, and the solenoid valve and the third circulating water pump of the heat pump unit are turned on. The refrigerant temperature of the refrigerant pipeline between the throttling device of the heat pump unit and the solenoid valve is obtained, and the opening degree of the throttling device of the heat pump unit is controlled according to the refrigerant temperature. The first and second circulating water pumps of the drying equipment are turned on.

7. The method according to claim 5, characterized in that, When the operating mode is the cooling mode, controlling the operation of the heat pump unit and the drying equipment according to the operating mode includes: The four-way valve of the heat pump unit is controlled to enter the cooling mode, the solenoid valve and the third circulating water pump of the heat pump unit are turned on, and when the first domestic water module does not need to use hot water, the solenoid valve is controlled to close, and the backup heat exchanger and the first hot water tank are used for heat exchange. The refrigerant temperature of the refrigerant pipeline between the throttling device of the heat pump unit and the solenoid valve is obtained, and the opening degree of the throttling device of the heat pump unit is controlled according to the refrigerant temperature. The first and second circulating water pumps of the drying equipment are shut down.

8. The method according to claim 5, characterized in that, When the operating mode is the heating and drying mode, controlling the operation of the heat pump unit and the drying equipment according to the operating mode includes: The four-way valve of the heat pump unit is controlled to enter the heating mode, the third circulating water pump of the heat pump unit is turned on, the solenoid valve of the heat pump unit is closed, and the standby heat exchanger and the first heat exchange water tank are used for heat exchange. The refrigerant temperature of the refrigerant pipeline between the throttling device of the heat pump unit and the solenoid valve is obtained, and the opening degree of the throttling device of the heat pump unit is controlled according to the refrigerant temperature. The first and second circulating water pumps of the drying equipment are turned on.

9. The method according to claim 5, characterized in that, When the operating mode is the heating mode, controlling the operation of the heat pump unit and the drying equipment according to the operating mode includes: The four-way valve of the heat pump unit is controlled to enter the heating mode, the third circulating water pump of the heat pump unit is turned on, the solenoid valve of the heat pump unit is closed, and the standby heat exchanger and the first heat exchange water tank are used for heat exchange. The refrigerant temperature of the refrigerant pipeline between the throttling device of the heat pump unit and the solenoid valve is obtained, and the opening degree of the throttling device of the heat pump unit is controlled according to the refrigerant temperature. The first and second circulating water pumps of the drying equipment are shut down.

10. The method according to claim 5, characterized in that, When the operating mode is the drying mode, controlling the operation of the heat pump unit and the drying equipment according to the operating mode includes: The four-way valve of the heat pump unit is controlled to enter the cooling mode, and the solenoid valve of the heat pump unit is opened; The refrigerant temperature of the refrigerant pipeline between the throttling device of the heat pump unit and the solenoid valve is obtained, and the opening degree of the throttling device of the heat pump unit is controlled according to the refrigerant temperature. The first and second circulating water pumps of the drying equipment are turned on.

11. A storage medium containing computer-executable instructions, characterized in that, The computer-executable instructions, when executed by a computer processor, are used to perform the control method for an air conditioning unit with a drying function as described in any one of claims 5 to 10.

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