CN111306829A

CN111306829A - Compressed air heat exchange system

Info

Publication number: CN111306829A
Application number: CN201911194009.XA
Authority: CN
Inventors: 赵帅; 白崇俨; 魏留柱; 袁紫琪; 朱兴丹
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-06-19

Abstract

The application provides a compressed air heat transfer system includes: a processor; a heat exchanger including a first flow path and a second flow path arranged in parallel; the fan is electrically connected with the processor and used for driving outdoor fresh air to flow into the room through the second flow path; the pressurization expansion assembly is electrically connected with the processor and is communicated with the first flow path, the pressurization expansion assembly is provided with an air return opening and an air exhaust opening, and the humidification module is electrically connected with the processor and can be communicated with an outlet of the second flow path; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the humidifying module and the fan to operate so as to guide the humidified outdoor fresh air into the room. By implementing the technical scheme, air is directly adopted as a refrigerant to replace a compound refrigerant adopted in the related technology, so that the indoor humidification effect is realized, and the harm to the environment can be reduced.

Description

Compressed air heat exchange system

Technical Field

The application relates to the field of household operation control, in particular to a compressed air heat exchange system.

Background

In the related art, a heat exchange system having a cooling and/or heating function generally can only perform a dehumidification operation, and cannot achieve a humidification function, and in addition, a refrigerant adopted in the heat exchange system is harmful to the environment, such as a greenhouse effect and an ozone hole.

Disclosure of Invention

The present application is directed to solving at least one of the problems of the prior art or the related art.

Therefore, the purpose of the application is to provide a novel compressed air heat exchange system.

In order to achieve at least one of the above objects, a compressed air heat exchange system is provided, which specifically comprises: a processor; a heat exchanger including a first flow path and a second flow path arranged in parallel; the fan is electrically connected with the processor and used for driving outdoor fresh air to flow into the room through the second flow path; the pressurization expansion assembly is electrically connected with the processor and is communicated with the first flow path, the pressurization expansion assembly is provided with an air return opening and an air exhaust opening, and the humidification module is electrically connected with the processor and can be communicated with an outlet of the second flow path; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the humidifying module and the fan to operate so as to guide the humidified outdoor fresh air into the room.

In the technical scheme, the operation of the pressurization expansion assembly and the fan is controlled, indoor air enters the pressurization expansion assembly through the air return opening, the pressurization expansion assembly applies work to the indoor air to generate a gas to be exchanged, the gas to be exchanged enters the first flow path to exchange heat with outdoor fresh air in the second flow path, and the outdoor fresh air after heat exchange enters the room or enters the room after being humidified by the humidifying module.

Wherein, the humidification module can cooperate the operation with the fan, also can cooperate the operation together with fan and pressure boost expansion unit.

In the technical scheme, the compressed air heat exchange system comprises a processor, a pressure boost expansion assembly, a heat exchanger, a fan and a humidification module, wherein the heat exchanger is an air-cooled heat exchanger and at least comprises a first flow path and a second flow path which can exchange heat with each other, outdoor fresh air is adopted as a refrigerant in the second flow path, air led out from the indoor space is adopted as the refrigerant in the first flow path, the first flow path is communicated with the pressure boost expansion assembly, the pressure boost expansion assembly is used for doing work on the led-out indoor air, the fan is driven, the outdoor fresh air in the second flow path is humidified through the humidification module after being cooled in the refrigeration mode, the indoor humidification is realized in the refrigeration mode, and the indoor humidification is realized in the heating mode after the outdoor fresh air in the second flow path is heated up through the humidification module.

The technical scheme of this application, on the one hand, directly adopt the air to replace the compound class refrigerant of adoption in the correlation technique as the refrigerant, combine the operation of compressor and expander, when regard the air as the refrigerant, the realization is to indoor humidification effect, save the cost that sets up of refrigerant, and reduce the harm to the environment, on the other hand, whole compressed air heat transfer system homoenergetic enough sets up in outdoor side, can reduce the occupation to the room space, on the other hand again, compressed air heat transfer system in this application, when realizing the humidification function, can also realize introducing indoor new trend.

In the above technical solution, the pressure boost expansion assembly includes: the compressor and the expander are connected through a rotating shaft, the compressor is connected to one end of the first flow path, and the expander is connected to the other end of the first flow path; the motor is electrically connected with the processor and is used for driving the rotating shaft to rotate; the motor drives the rotating shaft to rotate, so as to drive the compressor and the expander to operate, so that the air entering the compressor is boosted to be heated, and the air entering the expander is reduced in pressure and temperature; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the motor to operate.

In the technical scheme, the supercharging expansion component comprises a compressor, an expander, a high-speed motor and a bearing, the expander is coaxially connected with the compressor, the high-speed motor is controlled by a processor to drive the compressor to do work on air, so that the temperature and the pressure of the air are simultaneously increased, the expander is pushed by high-pressure air, partial work is compensated for the compressor through a rotating shaft, and the temperature and the pressure of the air are reduced along with the work.

Specifically, in the cooling mode, the outlet of the expander is connected to the inlet of the first flow path, and in the heating mode, the outlet of the compressor is connected to the inlet of the first flow path.

The compressed air heat exchange system in the application can only have refrigeration and humidification functions or only have heating and humidification functions based on different pipeline connection modes, or can realize the switching of the refrigeration function and the heating function by arranging the reversing assembly in one pipeline connection mode while realizing the humidification function.

In any one of the above solutions, the bearing includes: a circular bearing seat; and the elastic foil is arranged on the inner side wall of the bearing seat, and a lubricating gas film is arranged on the inner side wall of the elastic foil to support the rotating shaft.

In this technical scheme, foil dynamic pressure gas bearing includes the bearing frame and sets up in the inboard elasticity foil structure of bearing frame, and when motor drive pivot was high-speed to operate, rely on the relative high-speed motion between bearing frame and the foil, it provides the support for the pivot to form the dynamic pressure gas film, is favorable to promoting the high-speed moving stability of pivot.

Compared with a static pressure gas bearing and a magnetic suspension bearing, the foil dynamic pressure gas bearing has the advantages of simpler structure and lower cost, and is more suitable for being applied to humidification products.

In any of the above technical solutions, the expander is provided with an exhaust port and is communicated with an outlet of the first flow path, the compressor is provided with an air return port and is communicated with an inlet of the first flow path, wherein indoor air enters the compressor through the air return port to be heated, enters the first flow path to exchange heat with the second flow path, and then returns to the expander, and outdoor fresh air in the second flow path is heated, humidified through the humidification module and enters the room.

In the technical scheme, the air return opening is connected with an indoor air outlet, so that indoor air firstly enters the compressor to form high-temperature high-pressure gas, the high-temperature high-pressure gas enters the first flow path and exchanges heat with outdoor fresh air in the second flow path to heat the outdoor fresh air, the operation of the humidifying module is combined, the heated and humidified outdoor fresh air is led into the room, the gas flowing out of the first flow path enters the expansion machine to be cooled and depressurized, and then is exhausted to the outdoor after being exhausted, and the heating function of the compressed air heat exchange system is achieved.

In any of the above technical solutions, the compressor is provided with an exhaust port and is communicated with an outlet of the first flow path, the expander is provided with a return air port and is communicated with an inlet of the first flow path, wherein indoor air enters the expander through the return air port to be cooled, enters the first flow path and exchanges heat with the second flow path, then returns to the compressor, and outdoor fresh air in the second flow path is cooled, humidified through the humidifying module and enters the room.

In the technical scheme, the air return opening is connected with an indoor air outlet so that indoor air firstly enters the expansion machine to form low-temperature low-pressure gas, the low-temperature low-pressure gas enters the first flow path and exchanges heat with outdoor fresh air in the second flow path so as to cool the outdoor fresh air, the humidification module is combined to operate so that the warm and humidified outdoor fresh air is led into the room, the gas flowing out of the first flow path enters the compressor and is exhausted to the outside after being heated and pressurized, and the refrigeration function of the compressed air heat exchange system is realized.

In any one of the above technical solutions, the compressor is provided with a return air inlet, and the expander is provided with an exhaust port, and further comprises: the first reversing assembly is electrically connected with the processor, is connected with the air return opening, the inlet of the expansion machine, the outlet of the first flow path and the air outlet of the room, and is used for communicating the air return opening with the air outlet of the room, the inlet of the expansion machine with the outlet of the first flow path or communicating the air return opening with the outlet of the first flow path and the inlet of the expansion machine with the air outlet of the room; the second reversing assembly is electrically connected with the processor, is connected with the inlet of the first flow path, the outlet of the compressor, the exhaust port and the room air inlet, and is used for communicating the outlet of the compressor with the inlet of the first flow path and the exhaust port with the room air inlet or communicating the outlet of the compressor with the room air inlet and the exhaust port with the inlet of the first flow path; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the conduction state of the first reversing assembly and the second reversing assembly so as to switch the compressed air heat exchange system between a cooling mode and a heating mode.

In the technical scheme, the first reversing assembly and the second reversing assembly are arranged, and the switching of the compressed air heat exchange system under the heating mode and the cooling mode is realized by combining the control of the processor on the conduction direction of the reversing assemblies, namely the compressed air heat exchange system has the functions of heating, humidifying and refrigerating and humidifying at the same time.

In any of the above technical solutions, the first reversing component is a first four-way valve, and four ports of the first four-way valve are respectively communicated with the air return inlet, the inlet of the expansion machine, the outlet of the first flow path, and the air outlet of the room.

In the technical scheme, as a simple and reliable implementation mode, the first reversing assembly and the second reversing assembly are both four-way valves.

In any of the above technical solutions, the second reversing component is a second four-way valve, and four ports of the second four-way valve are respectively communicated with the inlet of the first flow path, the outlet of the compressor, the exhaust port and the air inlet of the room.

In any one of the above technical solutions, the method further includes: the air inlet flow path is connected to the outlet end of the second flow path, the air inlet flow path can be communicated with the indoor space, and the humidifying module can be communicated with the air inlet flow path; the humidifying module is also provided with a water tank; and the gas-liquid separator is arranged on the air inlet flow path, is arranged between the outlet end of the second flow path and the connecting point of the humidifying module and the air inlet flow path, can be communicated with the water tank and is used for guiding condensed water separated out from the air inlet flow path into the water tank in a refrigeration mode.

In the technical scheme, under the refrigeration mode, after outdoor fresh air in the second flow path exchanges heat with the first flow path, part of condensed water vapor can be generated, in the process of transmitting the condensed water vapor to the indoor through the air inlet flow path, the condensed water is separated by the gas-liquid separator, the gas is input into the indoor through the gas-liquid separator, and the liquid is introduced into the humidification module to realize water storage.

In any one of the above technical solutions, the method further includes: the humidity sensor is electrically connected with the processor and used for detecting indoor relative humidity; the processor is further configured to execute the computer instructions to perform the steps of: the state of the humidification module is configured according to the indoor relative humidity.

In any of the above solutions, the processor is further configured to execute the computer instructions to perform the following steps: if the indoor relative humidity is smaller than the humidity threshold value and the humidity difference value between the humidity threshold value and the indoor relative humidity is larger than a preset difference value, controlling to start the humidifying module; and if the humidity difference value is smaller than or equal to the preset difference value, controlling to close the humidifying module.

In the technical scheme, the indoor relative humidity is detected through the humidity sensor, and compared with the humidity threshold value, if the indoor relative humidity is smaller, and the humidity difference value between the humidity threshold value and the indoor relative humidity is larger than a preset difference value, the indoor humidification is indicated to be needed, if the humidity difference value is reduced to be smaller than or equal to the preset difference value, the current indoor relative humidity meets the comfortable requirement of a user, and the requirements for heating and refrigerating the room are met by combining the introduction of the heating fresh air or the refrigerating fresh air of the compressed air heat exchange system.

In any of the above solutions, the working pressure ratio between the outlet end and the inlet end of the compressor is greater than 1 and less than or equal to 3; and/or the operating pressure ratio between the inlet end and the outlet end of the expander is greater than 1 and less than or equal to 3.

In this solution, the operating efficiency of the system can be optimized by defining the above-mentioned operating pressure ratio.

In any one of the above technical solutions, the humidification module includes any one of an ultrasonic humidification module, an evaporation core type humidification module, a centrifugal humidification module, and a thermal steam type humidification module.

In any one of the above technical solutions, the method further includes: a memory for storing computer instructions executable on the processor.

One or more technical solutions provided by the present application have at least the following technical effects or advantages:

(1) on one hand, air is directly used as a refrigerant to replace compound refrigerants adopted in the related technology, and the operation of a compressor and an expander is combined, so that the indoor humidification effect is achieved while the air is used as the refrigerant, the setting cost of the refrigerant is saved, and the harm to the environment is reduced.

(2) The foil dynamical pressure gas bearing is used, a dynamical pressure lubricating pressure gas film is generated by means of high-speed relative motion between the shaft and the bearing, the assembly requirement is low, the rotor misalignment is prevented, the stability at high speed is good, and compared with a static pressure gas bearing and a magnetic suspension bearing, the foil dynamical pressure gas bearing is simpler in structure, lower in cost and more suitable for a household air conditioner.

(3) The humidification function is realized, and simultaneously, the introduction of indoor fresh air can also be realized.

(4) The whole compressed air heat exchange system can be arranged outside the room, and the occupation of the space in the room can be reduced.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 illustrates a schematic structural view of a compressed air heat exchange system according to an embodiment of the present application;

FIG. 2 shows a schematic structural diagram of a compressed air heat exchange system according to another embodiment of the present application;

FIG. 3 illustrates a first flow schematic of a compressed air heat exchange system according to yet another embodiment of the present application;

FIG. 4 illustrates a second flow schematic of a compressed air heat exchange system according to another embodiment of the present application;

FIG. 5 shows a schematic flow diagram of a humidification control method for a compressed air heat exchange system according to an embodiment of the present application;

FIG. 6 shows a schematic block diagram of a compressed air heat exchange system according to an embodiment of the present application.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

102 heat exchanger, 1022 first flow path, 1024 second flow path, 104 fan, 106 humidifying module, 108 expander, 110 motor, 112 bearing, 114 compressor, 116 inlet air flow path, 118 water tank, 120 gas-liquid separator, 122 first reversing component, 124 second reversing component and 126 humidity sensor.

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

The following describes the compressed air heat exchange system and the humidification control method thereof in the present application by determining the sleep mode as the designated operation mode.

Example one

As shown in fig. 1, the compressed air heat exchange system includes: a processor (see fig. 6), a booster expansion module, a heat exchanger 102, a fan 104, and a humidification module 106.

Wherein the processor is configured to execute the computer instructions.

The heat exchanger 102 is an air-cooled heat exchanger 102, and includes at least a first flow path 1022 and a second flow path 1024, which are capable of exchanging heat with each other.

And the fan 104 is electrically connected with the processor and is used for driving outdoor fresh air to flow into the room through the second flow path 1024.

The pressure boost expansion assembly, electrically connected to the processor, is in communication with the first flow path 1022, and is provided with an air return and an exhaust.

The humidification module 106 is electrically connected to the processor and is capable of communicating with the outlet of the second flow path 1024.

The humidification module 106 includes any one of an ultrasonic humidification module 106, an evaporation core type humidification module 106, a centrifugal humidification module 106, and a thermal steam type humidification module 106.

The processor is further configured to execute the computer instructions to perform the steps of: and controlling the humidifying module 106 and the fan 104 to operate so as to guide the humidified outdoor fresh air into the room.

The processor is further configured to execute the computer instructions to perform the steps of: the operation of the boost expansion assembly and the fan 104 is controlled, indoor air enters the boost expansion assembly through the air return opening, the boost expansion assembly applies work to the indoor air to generate a gas to be exchanged, the gas to be exchanged enters the first flow path 1022 to exchange heat with outdoor fresh air in the second flow path 1024, and the outdoor fresh air after heat exchange enters indoors or enters indoors after being humidified by the humidification module 106.

Specifically, outdoor fresh air is adopted in the second flow path 1024 as a refrigerant, air led out from the indoor space is adopted in the first flow path 1022 as the refrigerant, the first flow path 1022 is communicated with the pressure boosting expansion assembly to apply work to the led-out indoor air through the pressure boosting expansion assembly, the fan 104 is used for driving, in the cooling mode, the outdoor fresh air in the second flow path 1024 is cooled and then humidified through the humidifying module 106, so that the indoor humidification in the cooling mode is realized, in the heating mode, the outdoor fresh air in the second flow path 1024 is heated and then humidified through the humidifying module 106, and the indoor humidification in the heating mode is realized.

In this embodiment, compare with the humidification scheme among the correlation technique, on the one hand, directly adopt the air as the compound class refrigerant that adopts among the correlation technique of refrigerant replacement, combine the operation of compressor 114 and expander 108, when regard the air as the refrigerant, realize the humidification effect to indoor, save the cost of setting up of refrigerant, and reduce the harm to the environment, on the other hand, whole compressed air heat transfer system all can set up in the outdoor side, can reduce the occupation to the room space, on the other hand, compressed air heat transfer system in this application, when realizing the humidification function, can also realize introducing indoor new trend.

In some embodiments, the structure of the booster expansion assembly is specifically defined to include: a compressor 114 and an expander 108 connected by a rotating shaft, the compressor 114 being connected to one end of the first flow path 1022, the expander 108 being connected to the other end of the first flow path 1022; the motor 110 is electrically connected with the processor and used for driving the rotating shaft to rotate; the bearing 112 is arranged at the joint of the compressor 114 and the rotating shaft and the joint of the expander 108 and the rotating shaft, the motor 110 drives the rotating shaft to rotate to drive the compressor 114 and the expander 108 to operate, so that the pressure of the air entering the compressor 114 is increased, the temperature of the air is increased, and the pressure of the air entering the expander 108 is decreased; the processor is further configured to execute the computer instructions to perform the steps of: controlling the operation of the motor 110.

In this embodiment, the pressure boost expansion assembly includes a compressor 114, an expander 108, a high speed motor 110 and a bearing 112, the expander 108 and the compressor 114 are coaxially connected, the high speed motor 110 is controlled by the processor to drive the compressor 114 to apply work to the air, so that the temperature and the pressure of the air are simultaneously increased, the expander 108 is pushed by the high pressure air, a part of the work is compensated to the compressor 114 through the rotating shaft, and the temperature and the pressure of the air are reduced accordingly.

Specifically, in the cooling mode, the outlet of the expander 108 is connected to the inlet of the first flow path 1022, and in the heating mode, the outlet of the compressor 114 is connected to the inlet of the first flow path 1022.

In some embodiments, the bearing 112 described above is further defined: the bearing 112 includes: a circular bearing seat; the elastic foil is arranged on the inner side wall of the bearing seat, and a lubricating gas film is arranged on the inner side wall of the elastic foil to support the rotating shaft, so that a foil dynamic pressure gas bearing is defined.

In this embodiment, the foil dynamical pressure gas bearing, that is, the bearing 112 includes a bearing seat and an elastic foil structure disposed inside the bearing seat, when the motor 110 drives the rotating shaft to operate at a high speed, a dynamical pressure gas film is formed to support the rotating shaft by virtue of the relative high-speed motion between the bearing seat and the foil, which is beneficial to improving the stability of the rotating shaft in high-speed operation.

Example two

According to the compressed air heat exchange system of this embodiment, based on different pipeline connected mode, can only have heating and humidification function.

As shown in FIG. 2, in some embodiments, one particular arrangement of the booster expansion assembly comprises: the expander 108 is provided with an exhaust port and is communicated with an outlet of the first flow path 1022, the compressor 114 is provided with an air return port and is communicated with an inlet of the first flow path 1022, indoor air enters the compressor 114 through the air return port to be heated, enters the first flow path 1022 and exchanges heat with the second flow path 1024, then returns to the expander 108, and outdoor fresh air in the second flow path 1024 is heated, humidified through the humidification module 106 and enters the indoor space.

In this embodiment, the air return opening is connected to the indoor air outlet, so that the indoor air firstly enters the compressor 114 to form high-temperature high-pressure gas, the high-temperature high-pressure gas enters the first flow path 1022 and exchanges heat with the outdoor fresh air in the second flow path 1024 to heat the outdoor fresh air, the operation of the humidification module 106 is combined, the heated and humidified outdoor fresh air is introduced into the indoor, the gas flowing out of the first flow path 1022 enters the expander 108 to be cooled and depressurized, and then is exhausted to the outdoor after being exhausted, and the heating function of the compressed air heat exchange system is realized.

EXAMPLE III

According to the compressed air heat exchange system of this embodiment, based on different tube coupling modes, can only have refrigeration and humidification function.

As shown in fig. 1, in some embodiments, in another specific configuration of the pressure boost expansion assembly, the compressor 114 is provided with an exhaust port and is communicated with an outlet of the first flow path 1022, the expander 108 is provided with a return air port and is communicated with an inlet of the first flow path 1022, wherein the indoor air enters the expander 108 through the return air port to be cooled, enters the first flow path 1022 and exchanges heat with the second flow path 1024, and then returns to the compressor 114, and the outdoor fresh air in the second flow path 1024 is cooled and then is humidified by the humidification module 106 and enters the room.

In this embodiment, the air return opening is connected to the indoor air outlet, so that the indoor air firstly enters the expander 108 to form low-temperature low-pressure gas, the low-temperature low-pressure gas enters the first flow path 1022 and exchanges heat with the outdoor fresh air in the second flow path 1024 to cool the outdoor fresh air, the humidification module 106 is operated to guide the warm and humidified outdoor fresh air into the room, the gas flowing out of the first flow path 1022 enters the compressor 114 and is heated and pressurized, and then is exhausted to the outdoor, and the refrigeration function of the compressed air heat exchange system is achieved.

The compressed air heat exchange system further comprises: an inlet air flow path 116 connected to an outlet end of the second flow path 1024, the inlet air flow path 116 being capable of communicating with the room, and the humidification module 106 being capable of communicating with the inlet air flow path 116; the humidification module 106 is also provided with a water tank 118; and a gas-liquid separator 120 disposed on the intake air flow path 116 and between an outlet end of the second flow path 1024 and a connection point of the humidification module 106 and the intake air flow path 116, wherein the gas-liquid separator 120 is capable of communicating with the water tank 118 and guiding condensed water precipitated in the intake air flow path into the water tank 118 in a cooling mode.

In this embodiment, in the cooling mode, after the outdoor fresh air in the second flow path 1024 exchanges heat with the first flow path 1022, a part of condensed water vapor can be generated, and in the process of being transmitted to the indoor through the air inlet flow path 116, the condensed water is separated by the gas-liquid separator 120 through the gas-liquid separator 120, and then the gas is input into the indoor, and the liquid is introduced into the humidification module 106 to realize the water storage.

Example four

In a pipeline connection mode, the reversing assembly is arranged, so that the humidifying function is realized, and meanwhile, the refrigerating function and the heating function are switched.

Specifically, the compressor 114 is provided with a return air inlet, the expander 108 is provided with an exhaust port, and the compressed air heat exchange system further comprises: a first reversing component 122, electrically connected to the processor, and connected to the air return opening, the inlet of the expansion machine 108, the outlet of the first flow path 1022 and the room air outlet, for communicating the air return opening with the room air outlet and the inlet of the expansion machine 108 with the outlet of the first flow path 1022, as shown in fig. 3, or communicating the air return opening with the outlet of the first flow path 1022 and the inlet of the expansion machine 108 with the room air outlet, as shown in fig. 4; the second reversing component 124, electrically connected to the processor, is connected to the inlet of the first flow path 1022, the outlet of the compressor 114, the exhaust port, and the room air inlet, and is used for connecting the outlet of the compressor 114 with the inlet of the first flow path 1022 and the exhaust port with the room air inlet, as shown in fig. 3, or connecting the outlet of the compressor 114 with the room air inlet and the exhaust port with the inlet of the first flow path 1022, as shown in fig. 4.

The processor is further configured to execute the computer instructions to perform the steps of: and controlling the conduction state of the first reversing assembly 122 and the second reversing assembly 124 so as to switch the compressed air heat exchange system between the cooling mode and the heating mode.

In this embodiment, by providing the first reversing component 122 and the second reversing component 124, and combining with the control of the processor on the conduction direction of the reversing component, the switching between the heating mode and the cooling mode of the compressed air heat exchange system is realized, that is, the compressed air heat exchange system has both heating and humidifying functions and both cooling and humidifying functions.

In any of the above embodiments, the first reversing component 122 is a first four-way valve, and four ports of the first four-way valve are respectively communicated with the air return opening, the inlet of the expander 108, the outlet of the first flow path 1022, and the room air outlet.

EXAMPLE five

As shown in fig. 1, the compressed air heat exchange system further includes: a humidity sensor 126 electrically connected to the processor, the humidity sensor 126 being configured to detect the indoor relative humidity; the processor is further configured to execute the computer instructions to perform the steps of: the state of the humidification module 106 is configured according to the indoor relative humidity.

As shown in fig. 5, based on the setting of the humidity sensor, the processor is further configured to execute computer instructions to perform the steps of:

502, receiving a humidification instruction, and controlling a compressed air heat exchange system to operate;

step 504, controlling the humidifying module to operate for a specified time, and detecting indoor relative humidity;

step 506, if the indoor relative humidity is smaller than the humidity threshold value and the humidity difference between the humidity threshold value and the indoor relative humidity is larger than a preset difference value, controlling to start the humidification module;

and step 508, if the humidity difference value is smaller than or equal to a preset difference value, controlling to close the humidification module.

In the process, the fan and the humidifying module operate together, and the pressure boosting expansion assembly is determined to be opened or not according to whether the temperature regulation requirement exists or not.

In the embodiment, the humidity sensor is used for detecting the indoor relative humidity, and comparing the indoor relative humidity with the humidity threshold value, if the indoor relative humidity is smaller and the humidity difference between the humidity threshold value and the indoor relative humidity is larger than a preset difference value, the indoor humidification is required, if the humidity difference value is reduced to be smaller than or equal to the preset difference value, the current indoor relative humidity meets the comfortable requirement of a user, and the requirement for heating and cooling the room is met by combining the introduction of the heating fresh air or the cooling fresh air of the compressed air heat exchange system.

In any of the above embodiments, the operating pressure ratio between the outlet end and the inlet end of the compressor is greater than 1 and less than or equal to 3; and/or the operating pressure ratio between the inlet end and the outlet end of the expander is greater than 1 and less than or equal to 3.

In this embodiment, the operating efficiency of the system can be optimized by defining the operating pressure ratio as described above.

As shown in fig. 6, the compressed air heat exchange system according to the embodiment of the present application further includes: a memory 602 and a processor 604.

A memory 602 for storing program code; the processor 604, i.e. the processor in the foregoing embodiment, is configured to call a program code to execute the operation control method of the compressed air heat exchange system in any of the foregoing embodiments.

In an embodiment of the present application, a computer readable storage medium is provided, having a computer program stored thereon, which, when being executed by a processor, carries out the steps of the method for controlling humidification of a compressed air heat exchange system according to any one of the preceding claims.

In this embodiment, the computer program is executed by the processor to implement the steps of the method for controlling a compressed air heat exchange system according to any one of the above embodiments, so that the method has all the beneficial technical effects of the method for controlling a compressed air heat exchange system, and is not described herein again.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compressed air heat exchange system, comprising:

a processor;

a heat exchanger including a first flow path and a second flow path arranged in parallel;

the fan is electrically connected with the processor and used for driving outdoor fresh air to flow into the room through the second flow path;

a pressure boost expansion assembly electrically connected with the processor and communicated with the first flow path, wherein the pressure boost expansion assembly is provided with an air return inlet and an air exhaust outlet,

a humidification module electrically connected to the processor and capable of communicating with an outlet of the second flow path;

the processor is further configured to execute the computer instructions to perform the steps of: and controlling the humidifying module and the fan to operate so as to guide the humidified outdoor fresh air into the room.

2. The compressed air heat exchange system of claim 1, wherein the processor is further configured to execute computer instructions to perform the steps of:

and controlling the operation of the pressurization expansion assembly and the fan, allowing indoor air to enter the pressurization expansion assembly through the air return opening, applying work to the indoor air by the pressurization expansion assembly to generate a to-be-exchanged gas, allowing the to-be-exchanged gas to enter the first flow path to exchange heat with outdoor fresh air in the second flow path, and allowing the heat-exchanged outdoor fresh air to enter the room or allowing the heat-exchanged outdoor fresh air to enter the room after being humidified by the humidification module.

3. The compressed air heat exchange system of claim 2, wherein the booster expansion assembly comprises:

a compressor and an expander connected by a rotating shaft, the compressor being connected to one end of the first flow path, the expander being connected to the other end of the first flow path;

the motor is electrically connected with the processor and is used for driving the rotating shaft to rotate;

the motor drives the rotating shaft to rotate, so as to drive the compressor and the expander to operate, so that the air entering the compressor is boosted and heated, and the air entering the expander is reduced in pressure and temperature;

the processor is further configured to execute the computer instructions to perform the steps of: and controlling the motor to operate.

4. The compressed air heat exchange system of claim 3, wherein the bearing comprises:

a circular bearing seat;

and the elastic foil is arranged on the inner side wall of the bearing seat, and a lubricating gas film is arranged on the inner side wall of the elastic foil to support the rotating shaft.

5. The compressed air heat exchange system of claim 3,

the expander is provided with the exhaust port and communicated with the outlet of the first flow path, the compressor is provided with the return air inlet and communicated with the inlet of the first flow path,

indoor air enters the compressor through the air return opening to be heated, enters the first flow path and exchanges heat with the second flow path, then returns to the expansion machine, and outdoor fresh air in the second flow path is heated, humidified through the humidification module and enters the indoor space.

6. The compressed air heat exchange system of claim 3,

the compressor is provided with the exhaust port and communicated with the outlet of the first flow path, the expander is provided with the return air inlet and communicated with the inlet of the first flow path,

indoor air enters the expansion machine through the air return opening to be cooled, enters the first flow path and exchanges heat with the second flow path, then returns to the compressor, and outdoor fresh air in the second flow path is cooled, then is humidified through the humidification module and enters the indoor space.

7. The compressed air heat exchange system of claim 3, wherein the compressor is configured with the return air inlet and the expander is configured with the exhaust port, further comprising:

the first reversing assembly is electrically connected with the processor, is connected with the air return opening, the inlet of the expansion machine, the outlet of the first flow path and the room air outlet, and is used for communicating the air return opening with the room air outlet and the inlet of the expansion machine with the outlet of the first flow path or communicating the air return opening with the outlet of the first flow path and the inlet of the expansion machine with the room air outlet;

the second reversing assembly is electrically connected with the processor, is connected with the inlet of the first flow path, the outlet of the compressor, the air outlet and the room air inlet, and is used for communicating the outlet of the compressor with the inlet of the first flow path and the air outlet with the room air inlet or communicating the outlet of the compressor with the room air inlet and the air outlet with the inlet of the first flow path;

the processor is further configured to execute the computer instructions to perform the steps of: and controlling the conduction state of the first reversing assembly and the second reversing assembly so as to switch the compressed air heat exchange system between a cooling mode and a heating mode.

8. The compressed air heat exchange system of claim 7,

the first reversing assembly is a first four-way valve, and four ports of the first four-way valve are respectively communicated with the air return opening, the inlet of the expansion machine, the outlet of the first flow path and the air outlet of the room.

9. The compressed air heat exchange system of claim 7,

the second reversing component is a second four-way valve, and four ports of the second four-way valve are respectively communicated with the inlet of the first flow path, the outlet of the compressor, the exhaust port and the air inlet of the room.

10. The compressed air heat exchange system of claim 6 or 7, further comprising:

the air inlet flow path is connected to the outlet end of the second flow path, the air inlet flow path can be communicated with the indoor space, and the humidifying module can be communicated with the air inlet flow path;

the humidifying module is also provided with a water tank;

and the gas-liquid separator is arranged on the air inlet flow path, is arranged between the outlet end of the second flow path and the connection point of the humidifying module and the air inlet flow path, can be communicated with the water tank and is used for guiding condensed water separated out in the air inlet flow path into the water tank in a refrigeration mode.

11. A compressed air heat exchange system according to any one of claims 3 to 9 further comprising:

the humidity sensor is electrically connected with the processor and is used for detecting indoor relative humidity;

the processor is further configured to execute the computer instructions to perform the steps of: configuring a state of the humidification module according to the indoor relative humidity.

12. The compressed air heat exchange system of claim 11, wherein the processor is further configured to execute computer instructions to perform the steps of:

if the indoor relative humidity is smaller than a humidity threshold value, and a humidity difference value between the humidity threshold value and the indoor relative humidity is larger than a preset difference value, controlling to start the humidifying module;

and if the humidity difference value is smaller than or equal to the preset difference value, controlling to close the humidification module.

13. Compressed air heat exchange system according to any one of claims 3 to 9,

the working pressure ratio between the outlet end and the inlet end of the compressor is more than 1 and less than or equal to 3; and/or

The working pressure ratio between the inlet end and the outlet end of the expander is greater than 1 and less than or equal to 3.

14. Compressed air heat exchange system according to any one of claims 3 to 9,

the humidifying module comprises any one of an ultrasonic humidifying module, an evaporation core type humidifying module, a centrifugal humidifying module and a hot steam type humidifying module.

15. A compressed air heat exchange system according to any one of claims 3 to 9 further comprising:

a memory for storing the computer instructions executable on the processor.