CN110715478A

CN110715478A - Compressed air heat exchange system

Info

Publication number: CN110715478A
Application number: CN201911192275.9A
Authority: CN
Inventors: 袁紫琪; 白崇俨; 赵帅; 朱兴丹; 魏留柱
Original assignee: Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-01-21

Abstract

The application provides a compressed air heat transfer system includes: a processor; the heat exchanger comprises a first flow path and a second flow path which are arranged in parallel, and two ends of the second flow path are communicated with the outdoor; the fan is arranged on the second flow path and used for driving outdoor air to flow through the second flow path; a booster expansion assembly electrically connected to the processor and in communication with the first flow path; the reversing assembly is configured with the conduction direction of the reversing assembly, so that the pressurizing expansion assembly inputs high-temperature gas to the first flow path and refrigerates indoors, or the pressurizing expansion assembly inputs low-temperature gas to the first flow path and heats indoors; and the wind direction adjusting component is configured with the conduction direction of the wind direction adjusting component so as to supply air to the indoor through the first ventilation opening at the upper part when the air is cooled to the indoor or supply air to the indoor through the second ventilation opening at the lower part when the air is heated to the indoor. By executing the technical scheme, the uniformity of indoor distribution of the air flow sent into the room is improved, and therefore the comfort of a user is improved.

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, the compressed air heat exchange system provided with the supercharging expansion assembly can be arranged at the outdoor side and is communicated with the indoor side through a vent arranged on a wall body, the effect of the vent is usually fixed, for example, the first vent is used for supplying air to the indoor, and the second vent is used for supplying air to the compressed air heat exchange system, so that air can only be supplied through the vent at the lower part or the vent at the upper part in a cooling mode or a heating mode, and the comfort degree of a user is influenced.

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 the above object, the present application provides a compressed air heat exchange system, which specifically includes: a processor; the heat exchanger comprises a first flow path and a second flow path which are arranged in parallel, and two ends of the second flow path are communicated with the outdoor; the fan is arranged on the second flow path and used for driving outdoor air to flow through the second flow path; a booster expansion assembly electrically connected to the processor and in communication with the first flow path; a commutation component electrically coupled to the processor, the processor configured to execute computer instructions to perform the steps of: configuring the conduction direction of the reversing assembly, and enabling the pressurizing expansion assembly to input high-temperature gas to the first flow path and refrigerate indoors or enabling the pressurizing expansion assembly to input low-temperature gas to the first flow path and heat indoors; a wind direction adjustment assembly electrically connected to the processor, the processor further configured to execute computer instructions to perform the steps of: the conducting direction of the wind direction adjusting assembly is configured to supply air to the indoor through the first ventilation opening at the upper part when the air is cooled to the indoor or supply air to the indoor through the second ventilation opening at the lower part when the air is heated to the indoor.

In the technical scheme, the compressed air heat exchange system comprises a processor, a booster expansion assembly, a heat exchanger, a fan, a reversing assembly and an air direction adjusting assembly, 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 air is adopted as a refrigerant in the second flow path, the first flow path is communicated with the booster expansion assembly, the booster expansion assembly can receive indoor air and output high-temperature high-pressure gas and low-temperature low-pressure gas through operation, through arranging the reversing component, high-temperature and high-pressure gas is controlled to be input into the first flow path, after exchanging heat with the second flow path, the high-temperature and high-pressure gas returns to the pressurizing and expanding component, after being cooled and depressurized, the high-temperature and high-pressure gas returns to the indoor space, so that the refrigeration mode is realized, or the low-temperature and low-pressure gas is input into the first flow path and returns to the pressurization expansion assembly after being subjected to heat exchange with the second flow path, and the low-temperature and low-pressure gas returns to the room after being heated and pressurized, so that the heating mode is realized.

Further combine wind direction adjusting part and the first vent on the upper portion and the second vent of lower part of seting up on the wall body, through adjusting wind direction adjusting part's the direction that switches on, under the refrigeration mode, from first vent to indoor air supply, under the heating mode, from the second vent to indoor air supply, because low temperature gas changes downflow, high temperature gas changes the upflow, consequently this mode of setting can promote the homogeneity of sending into indoor air current at indoor distribution, thereby promote user's travelling comfort.

In addition, warm air is input into the room through the second ventilation opening at the lower part, and the foot warming effect can be realized.

In above-mentioned technical scheme, pressure boost expansion unit includes the low temperature output of first input and intercommunication, second input and the high temperature output of intercommunication, and the switching-over subassembly includes: the first reversing assembly is electrically connected with the processor and is connected with the low-temperature output end, the high-temperature output end, the inlet end of the first flow path and the wind direction adjusting assembly; the processor is further configured to execute the computer instructions to perform the steps of: the low-temperature output end is controlled to be communicated with the wind direction adjusting assembly, the high-temperature output end is controlled to be communicated with the inlet end, or the low-temperature output end is controlled to be communicated with the inlet end, and the high-temperature output end is controlled to be communicated with the wind direction adjusting assembly; the second reversing component is electrically connected with the processor and is connected with the first input end, the second input end, the outlet end of the first flow path and the wind direction adjusting component; the processor is further configured to execute the computer instructions to perform the steps of: the first input end is controlled to be communicated with the outlet end, the second input end is controlled to be communicated with the wind direction adjusting assembly, or the first input end is controlled to be communicated with the wind direction adjusting assembly, and the second input end is controlled to be communicated with the outlet end.

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 heating and cooling functions at the same time.

Specifically, under the refrigeration mode, control low temperature output end and wind direction adjusting part switch on, high temperature output end and entry end switch on, and first input end and exit end switch on, and the second input end switches on with wind direction adjusting part.

Under the heating mode, the low-temperature output end is controlled to be communicated with the inlet end, the high-temperature output end is controlled to be communicated with the wind direction adjusting assembly, the first input end is communicated with the wind direction adjusting assembly, and the second input end is communicated with the outlet end.

In any one of the above technical solutions, the wind direction adjusting assembly includes: the third reversing assembly is electrically connected with the processor and is connected with the first ventilation opening, the second ventilation opening, the first reversing assembly and the second reversing assembly; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the first ventilation opening to be communicated with the first reversing assembly, controlling the second ventilation opening to be communicated with the second reversing assembly, or controlling the first ventilation opening to be communicated with the second reversing assembly, and controlling the second ventilation opening to be communicated with the first reversing assembly.

In the technical scheme, the third reversing assembly is arranged, so that the air inlet and outlet switching of the first ventilation opening and the second ventilation opening can be adjusted, and the requirements for indoor air supply through different ventilation openings in different modes are met.

Specifically, under the refrigeration mode, the first ventilation opening is controlled to be communicated with the first reversing assembly, and the second ventilation opening is controlled to be communicated with the second reversing assembly so as to supply cold air to the indoor space through the first ventilation opening.

And under the heating mode, the first ventilation opening is controlled to be communicated with the second reversing assembly, and the second ventilation opening is controlled to be communicated with the first reversing assembly so as to supply hot air to the indoor space through the second ventilation opening.

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 connected with the low-temperature output end, the high-temperature output end, the inlet end of the first flow path, and the wind direction adjusting component.

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 connected to the first input end, the second input end, the outlet end of the first flow path, and the wind direction adjusting component.

In any of the above technical solutions, the third reversing component is a third four-way valve, and four ports of the third four-way valve are connected with the first ventilation opening, the second ventilation opening, the first reversing component and the second reversing component.

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

In any one of the above technical solutions, a first port of the third four-way valve is connected to the first vent, and the compressed air heat exchange system further includes: the first air supply flow path is connected to the first port and a third air vent below the first air vent; the first control valve is arranged on the first air supply flow path and is electrically connected with the processor; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the opening and closing of the first control valve to enable the first air supply flow path to be communicated or cut off, wherein the air inlet volume of the first air vent is greater than that of the third air vent.

In any one of the above technical solutions, a second port of the third four-way valve is connected to the second vent, and the compressed air heat exchange system further includes: the second air supply flow path is connected to the second port and a fourth ventilation opening above the second ventilation opening; the second control valve is arranged on the second air supply flow path and is electrically connected with the processor; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the opening and closing of the second control valve to enable the second air supply flow path to be communicated or cut off, wherein the air inlet volume of the second ventilation opening is greater than that of the fourth ventilation opening.

In any of the above solutions, the processor is further configured to execute the computer instructions to perform the following steps: in the refrigeration mode, the first control valve is controlled to be opened, and the second control valve is controlled to be closed, so that air is supplied to the indoor space through the first ventilation opening and the third ventilation opening; and in the heating mode, the first control valve is controlled to be closed, and the second control valve is controlled to be opened, so that air is supplied to the indoor space through the second ventilation opening and the fourth ventilation opening.

In the technical scheme, in order to realize air supply to the indoor from different heights, a first air supply flow path and a second air supply flow path can be further arranged, the first air supply flow path is matched with the first ventilation opening and is opened in the cooling mode, and the second air supply flow path is matched with the second ventilation opening and is opened in the heating mode.

Furthermore, the highest comfort level of the human body is realized by setting the air flow ratio of the upper air inlet and the lower air inlet.

Specifically, in the cooling mode, the air intake of the third ventilation opening should be less than 25% of the total air volume, and too large results in too low foot temperature.

In the heating mode, the air volume of the second ventilation opening accounts for 55-70% of the total air volume, too small results in too low foot temperature, and too large results in too fast air flow rising, which affects the heating effect.

Wherein, the proportion of different intake can be realized through setting up the pipeline of different sectional areas.

In any of the above solutions, the booster expansion module comprises: the compressor and the expander are connected through a rotating shaft, the compressor is provided with a second input end and a high-temperature output end, and the expander is provided with a first input end and a low-temperature output end; the motor is electrically connected with the processor and is used for driving the rotating shaft to rotate; the bearing is arranged at the joint of the compressor and the rotating shaft and the joint of the expander and the rotating shaft, the motor drives the rotating shaft to rotate, the compressor and the expander are driven to operate, the air entering the compressor is boosted and heated, and the air entering the expander is reduced in pressure and temperature.

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 heating mode, the outlet of the expander, i.e., the low-temperature output end, is connected to the inlet of the first flow path, and after heat exchange is performed between the first flow path and the second flow path, the temperature of the expander rises, enters the expander, and returns to the room after further temperature rise.

In a refrigeration mode, the outlet of the compressor, namely the high-temperature output end, is connected with the inlet of the first flow path, and after heat exchange is carried out between the first flow path with higher temperature and the second flow path, the temperature is reduced, the first flow path enters the expansion machine, and the second flow path returns to the indoor space after further temperature reduction.

In any of the above solutions, the bearing includes a bump foil type foil bearing, and the bump foil type foil bearing includes: the bearing seat is provided with a fixed groove on the inner side wall; the multi-layer foil is sleeved on the inner side of the bearing seat and provided with a fixing part, and the fixing part is matched with the fixing groove to fixedly connect the multi-layer foil with the bearing seat; the multilayer foil comprises a flat foil and a bubbling foil sleeved on the radial outer side of the flat foil; wherein the mounting direction of each layer of foil is opposite to the rotation direction of the bearing.

In this technical scheme, the wave foil type foil bearing is chooseed for use to the bearing, through the fixed slot that sets up on the bearing frame, sets up the fixed part on multilayer foil, and the cooperation between accessible fixed slot and the fixed part realizes the fixed of foil and bearing frame to reduce the run-out that takes place at the rotation in-process, in order to influence the normal use of bearing. The multi-layer foil comprises a flat foil and a bubbling foil, and the bubbling foil is sleeved outside the flat foil and is more favorable for generating a pressure air film during rotation, so that the rotating shaft is supported, and the stability of the high-speed rotation of the rotating shaft is improved.

In addition, the installation direction of the foil is opposite to the rotation direction of the bearing, so that the stable operation of the bearing is ensured. If the foil and the bearing are arranged in the same direction due to installation errors, the foil can be wound on the shaft to be clamped when the bearing is started, and the bearing cannot be used normally.

In any one of the above technical solutions, the bubbling foil includes a plurality of arc pieces, the plurality of arc pieces are distributed at intervals along the circumferential direction of the bearing, the number of the flat foils is two, and the flat foils adjacent to the bubbling foil are connected with the plurality of arc pieces; or the bubbling foil is of an integrated structure, and the number of the flat foils is one layer.

In the technical scheme, the bubbling foil can be formed by a plurality of arc sheets which are distributed at intervals along the circumferential direction of the bearing, meanwhile, the flat foil is arranged adjacent to the bubbling foil, and the radial position of the bubbling foil is limited by the flat foil on the basis that the bubbling foil is arranged on the flat foil.

In addition, the bubbling foil can be of an integrated structure, the flat foil on the inner side of the bubbling foil is only one layer, the number of parts during installation can be reduced, the installation efficiency is improved, and meanwhile, the integral weight and the production cost of the bearing can be reduced on the basis of meeting the requirement of rotation.

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

(1) and air is used as a refrigerant, so that the environmental pollution can be reduced, and the cost of the refrigerant can be saved.

(2) Through adjusting wind direction adjusting part's the direction that switches on, under the refrigeration mode, from first vent to indoor air supply, under the heating mode, from second vent to indoor air supply, because low temperature gas changes downflow, high temperature gas changes upflow, consequently this mode of setting can promote the homogeneity of sending into indoor air current at indoor distribution to promote user's travelling comfort.

(3) 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.

(4) The indoor side is not provided with a heat exchanger, so that the indoor occupied space is favorably reduced, and the arrangement of the air supply outlet is more flexible.

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 partial schematic view of a shaft mated with a bearing according to one embodiment of the present application;

FIG. 4 illustrates a schematic structural view of a bearing in a compressed air heat exchange system according to an embodiment of the present application;

FIG. 5 shows a partial schematic of the structure at B in FIG. 4;

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 6 is:

102 heat exchanger, 1022 first flow path, 1024 second flow path, 104 fan, 106 expander, 108 motor, 110 bearing, 112 compressor, 114 first four-way valve, 116 second four-way valve, 118 third four-way valve, 120 rotating shaft, 110A bearing support, 110B blister foil, 110C flat foil.

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 operation control method thereof in the present application, with the sleep mode determined 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 three reversing modules.

Wherein the processor is configured to execute the computer instructions.

The heat exchanger 102 comprises a first flow path 1022 and a second flow path 1024 which are arranged in parallel, and both ends of the second flow path 1024 are communicated with the outdoor; a fan 104 disposed on the second flow path 1024 for driving outdoor air to flow through the second flow path 1024; a booster expansion assembly electrically connected to the processor and in communication with the first flow path 1022; a commutation component electrically coupled to the processor, the processor configured to execute computer instructions to perform the steps of: the conduction direction of the reversing assembly is configured, so that the pressurization expansion assembly inputs high-temperature gas to the first flow path 1022 and cools indoor, or inputs low-temperature gas to the first flow path 1022 and heats indoor; a wind direction adjustment assembly electrically connected to the processor, the processor further configured to execute computer instructions to perform the steps of: the conducting direction of the wind direction adjusting assembly is configured to supply air to the indoor through the first ventilation opening at the upper part when the air is cooled to the indoor or supply air to the indoor through the second ventilation opening at the lower part when the air is heated to the indoor.

In this embodiment, the compressed air heat exchange system includes a processor, a pressure boost expansion assembly, a heat exchanger 102, a fan 104, a reversing assembly and a wind direction adjusting assembly, the heat exchanger 102 is an air-cooled heat exchanger 102 and at least includes a first flow path 1022 and a second flow path 1024 capable of exchanging heat with each other, outdoor air is used as a refrigerant in the second flow path 1024, the first flow path 1022 is communicated with the pressure boost expansion assembly, the pressure boost expansion assembly can receive indoor air and output high-temperature high-pressure gas and low-temperature low-pressure gas by operation, the reversing assembly is arranged to control the high-temperature high-pressure gas to be input into the first flow path 1022, the high-temperature high-pressure gas returns to the pressure boost expansion assembly after exchanging heat with the second flow path 1024, the temperature and pressure are reduced and then returned to the room to realize a refrigeration mode, or the low-temperature low-pressure gas is controlled to be input into the, and returning to the indoor to realize a heating mode.

In the above embodiment, the pressure boost expansion assembly includes a first input connected to the low temperature output, a second input connected to the high temperature output, and the reversing assembly includes: the first reversing assembly is electrically connected with the processor and is connected with the low-temperature output end, the high-temperature output end, the inlet end of the first flow path 1022 and the wind direction adjusting assembly; the processor is further configured to execute the computer instructions to perform the steps of: the low-temperature output end is controlled to be communicated with the wind direction adjusting assembly, the high-temperature output end is controlled to be communicated with the inlet end, or the low-temperature output end is controlled to be communicated with the inlet end, and the high-temperature output end is controlled to be communicated with the wind direction adjusting assembly; the second reversing component is electrically connected with the processor and is connected with the first input end, the second input end, the outlet end of the first flow path 1022 and the wind direction adjusting component; the processor is further configured to execute the computer instructions to perform the steps of: the first input end is controlled to be communicated with the outlet end, the second input end is controlled to be communicated with the wind direction adjusting assembly, or the first input end is controlled to be communicated with the wind direction adjusting assembly, and the second input end is controlled to be communicated with the outlet end.

In this embodiment, the switching of the compressed air heat exchange system between the heating mode and the cooling mode is realized by arranging the first reversing assembly and the second reversing assembly and combining the control of the processor on the conduction direction of the reversing assemblies, that is, the compressed air heat exchange system has both heating and cooling functions.

As shown in fig. 1, specifically, in the cooling mode, the low-temperature output end is controlled to be conducted with the wind direction adjusting assembly, the high-temperature output end is controlled to be conducted with the inlet end, the first input end is controlled to be conducted with the outlet end, and the second input end is controlled to be conducted with the wind direction adjusting assembly.

As shown in fig. 2, in the heating mode, the low-temperature output end is controlled to be conducted with the inlet end, the high-temperature output end is controlled to be conducted with the wind direction adjusting assembly, the first input end is conducted with the wind direction adjusting assembly, and the second input end is conducted with the outlet end.

In any of the above embodiments, the wind direction adjustment assembly comprises: the third reversing assembly is electrically connected with the processor and is connected with the first ventilation opening, the second ventilation opening, the first reversing assembly and the second reversing assembly; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the first ventilation opening to be communicated with the first reversing assembly, controlling the second ventilation opening to be communicated with the second reversing assembly, or controlling the first ventilation opening to be communicated with the second reversing assembly, and controlling the second ventilation opening to be communicated with the first reversing assembly.

In this embodiment, through setting up the third switching-over subassembly, can adjust the business turn over wind switching of first vent and second vent to satisfy under different modes, the demand of supplying air to indoor through different vents does.

As shown in fig. 1, specifically, in the cooling mode, the first ventilation opening is controlled to be communicated with the first reversing assembly, and the second ventilation opening is controlled to be communicated with the second reversing assembly, so as to send cold air to the indoor space through the first ventilation opening.

As shown in fig. 2, in the heating mode, the first ventilation opening is controlled to be communicated with the second reversing assembly, and the second ventilation opening is controlled to be communicated with the first reversing assembly, so that hot air is supplied to the indoor space through the second ventilation opening.

In any of the above embodiments, the first reversing component is the first four-way valve 114, and four ports of the first four-way valve 114 are connected to the low temperature output end, the high temperature output end, the inlet end of the first flow path 1022, and the wind direction adjusting component.

In any of the above embodiments, the second reversing component is a second four-way valve 116, and four ports of the second four-way valve 116 are connected to the first input end, the second input end, the output end of the first flow path 1022, and the wind direction adjusting component.

In any of the above embodiments, the third reversing component is a third four-way valve 118, and four ports of the third four-way valve 118 are connected to the first vent, the second vent, the first reversing component, and the second reversing component.

In this embodiment, as a simple and reliable implementation manner, the first reversing assembly, the second reversing assembly, and the third reversing assembly are all four-way valves.

In any of the above embodiments, the first port of the third four-way valve 118 is connected to the first vent, and the compressed air heat exchange system further comprises: the first air supply flow path is connected to the first port and a third air vent below the first air vent; the first control valve is arranged on the first air supply flow path and is electrically connected with the processor; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the opening and closing of the first control valve to enable the first air supply flow path to be communicated or cut off, wherein the air inlet volume of the first air vent is greater than that of the third air vent.

In any of the above embodiments, the second port of the third four-way valve 118 is connected to the second vent, and the compressed air heat exchange system further comprises: the second air supply flow path is connected to the second port and a fourth ventilation opening above the second ventilation opening; the second control valve is arranged on the second air supply flow path and is electrically connected with the processor; the processor is further configured to execute the computer instructions to perform the steps of: and controlling the opening and closing of the second control valve to enable the second air supply flow path to be communicated or cut off, wherein the air inlet volume of the second ventilation opening is greater than that of the fourth ventilation opening.

In any of the above embodiments, the processor is further configured to execute the computer instructions to perform the steps of: in the refrigeration mode, the first control valve is controlled to be opened, and the second control valve is controlled to be closed, so that air is supplied to the indoor space through the first ventilation opening and the third ventilation opening; and in the heating mode, the first control valve is controlled to be closed, and the second control valve is controlled to be opened, so that air is supplied to the indoor space through the second ventilation opening and the fourth ventilation opening.

In this embodiment, in order to supply air from different heights into the room, a first air supply flow path and a second air supply flow path may be further provided, the first air supply flow path is engaged with the first vent and is opened in the cooling mode, and the second air supply flow path is engaged with the second vent and is opened in the heating mode.

In any of the above embodiments, as shown in fig. 1, the booster expansion assembly comprises: the compressor 112 and the expander 106 are connected through a rotating shaft 120, the compressor 112 is provided with a second input end and a high-temperature output end, and the expander 106 is provided with a first input end and a low-temperature output end; the motor 108 is electrically connected with the processor and used for driving the rotating shaft to rotate; as shown in fig. 3, the bearing 110 is sleeved on the rotating shaft 120 and is disposed at a connection between the compressor 112 and the rotating shaft and a connection between the expander 106 and the rotating shaft, and the motor 108 drives the rotating shaft to rotate to drive the compressor 112 and the expander 106 to operate, so that the air entering the compressor 112 is increased in pressure and temperature, and the air entering the expander 106 is decreased in pressure and temperature.

In this embodiment, the pressure boost expansion assembly includes a compressor 112, an expander 106, a high speed motor 108 and a bearing 110, the expander 106 and the compressor 112 are coaxially connected, the high speed motor 108 is controlled by the processor to drive the compressor 112 to apply work to the air, so that the temperature and the pressure of the air are simultaneously increased, the expander 106 is pushed by the high pressure air, a part of the work is compensated to the compressor 112 through the rotating shaft, and the temperature and the pressure of the air are reduced accordingly.

Specifically, in the heating mode, the outlet of the expander 106, i.e., the low-temperature output end, is connected to the inlet of the first flow path 1022, and after heat exchange is performed between the first flow path 1022 and the second flow path 1024, the temperature of the expander rises, enters the expander 106, and returns to the room after further rising.

In the cooling mode, the outlet of the compressor 112, i.e., the high temperature output end, is connected to the inlet of the first flow path 1022, and after the first flow path 1022 and the second flow path 1024 having a higher temperature exchange heat, the temperature is reduced, and the refrigerant enters the expander 106, is further cooled, and then returns to the indoor.

As shown in fig. 4, in any of the above embodiments, the bearing 110 includes: the bearing includes a bump foil type foil bearing including: the bearing seat 110A is provided with a fixed groove on the inner side wall; the multi-layer foil is sleeved on the inner side of the bearing seat and provided with a fixing part, and the fixing part is matched with the fixing groove to fixedly connect the multi-layer foil with the bearing seat; the multilayer foil comprises a flat foil and a bubbling foil sleeved on the radial outer side of the flat foil; wherein the mounting direction of each layer of foil is opposite to the rotation direction of the bearing.

In the embodiment, the wave foil type foil bearing is selected as the bearing, the fixing part is arranged on the multilayer foil through the fixing groove arranged on the bearing seat, and the fixing of the foil and the bearing seat can be realized through the matching between the fixing groove and the fixing part, so that the radial runout generated in the rotating process is reduced, and the normal use of the bearing is influenced. The multi-layer foil comprises a flat foil and a bubbling foil, and the bubbling foil is sleeved outside the flat foil and is more favorable for generating a pressure air film during rotation, so that the rotating shaft is supported, and the stability of the high-speed rotation of the rotating shaft is improved.

In any of the above embodiments, as shown in fig. 5, the blister foil 110B includes a plurality of arc pieces, the plurality of arc pieces are distributed at intervals along the circumferential direction of the bearing, the number of the flat foil pieces 110C is two, and the flat foil pieces adjacent to the blister foil are connected to the plurality of arc pieces; or the bubbling foil is of an integrated structure, and the number of the flat foils is one layer.

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, which can be electrically connected to the motor, the fan, the four-way valve, the control valve, and the like, is configured to call a program code to execute the operation control method of the compressed air heat exchange system according to any of the 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 of controlling a compressed air heat exchange system according to any one of the preceding claims.

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;

the heat exchanger comprises a first flow path and a second flow path which are arranged in parallel, and two ends of the second flow path are communicated with the outdoor;

the fan is arranged on the second flow path and used for driving outdoor air to flow through the second flow path;

a booster expansion assembly electrically connected to the processor and in communication with the first flow path;

a commutation component electrically coupled to the processor, the processor configured to execute computer instructions to perform the steps of: configuring the conduction direction of the reversing assembly, so that the pressurizing expansion assembly inputs high-temperature gas to the first flow path and refrigerates indoors, or so that the pressurizing expansion assembly inputs low-temperature gas to the first flow path and heats indoors;

a wind direction adjusting component electrically connected with the processor,

the processor is further configured to execute the computer instructions to perform the steps of: and the conduction direction of the wind direction adjusting assembly is configured so as to supply air to the indoor through the first ventilation opening at the upper part when cooling the indoor or supply air to the indoor through the second ventilation opening at the lower part when heating the indoor.

2. The compressed air heat exchange system of claim 1, wherein the booster expansion assembly includes a first input connected to a low temperature output, a second input connected to a high temperature output, and the reversing assembly includes:

the first reversing assembly is electrically connected with the processor and is connected with the low-temperature output end, the high-temperature output end, the inlet end of the first flow path and the wind direction adjusting assembly;

the processor is further configured to execute the computer instructions to perform the steps of: controlling the low-temperature output end to be communicated with the wind direction adjusting assembly, and controlling the high-temperature output end to be communicated with the inlet end, or controlling the low-temperature output end to be communicated with the inlet end, and controlling the high-temperature output end to be communicated with the wind direction adjusting assembly;

the second reversing assembly is electrically connected with the processor and is connected with the first input end, the second input end, the outlet end of the first flow path and the wind direction adjusting assembly;

the processor is further configured to execute the computer instructions to perform the steps of: and controlling the first input end to be communicated with the outlet end, the second input end to be communicated with the wind direction adjusting assembly, or controlling the first input end to be communicated with the wind direction adjusting assembly, and the second input end to be communicated with the outlet end.

3. The compressed air heat exchange system of claim 2, wherein the wind direction adjustment assembly comprises:

the third reversing assembly is electrically connected with the processor and is connected with the first ventilation opening, the second ventilation opening, the first reversing assembly and the second reversing assembly;

the processor is further configured to execute the computer instructions to perform the steps of: and controlling the first ventilation opening to be communicated with the first reversing assembly, and the second ventilation opening to be communicated with the second reversing assembly, or controlling the first ventilation opening to be communicated with the second reversing assembly, and the second ventilation opening to be communicated with the first reversing assembly.

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

the first reversing assembly is a first four-way valve, and four ports of the first four-way valve are connected with the low-temperature output end, the high-temperature output end, the inlet end of the first flow path and the wind direction adjusting assembly.

5. The compressed air heat exchange system of claim 4,

the second reversing assembly is a second four-way valve, and four ports of the second four-way valve are connected with the first input end, the second input end, the outlet end of the first flow path and the wind direction adjusting assembly.

6. The compressed air heat exchange system of claim 4,

the third reversing assembly is a third four-way valve, and four ports of the third four-way valve are connected with the first ventilation opening, the second ventilation opening, the first reversing assembly and the second reversing assembly.

7. The compressed air heat exchange system of claim 6 wherein a first port of the third four-way valve is connected to the first vent, the compressed air heat exchange system further comprising:

a first air supply flow path connected to the first port and a third vent port below the first vent port;

the first control valve is arranged on the first air supply flow path and is electrically connected with the processor;

the processor is further configured to execute the computer instructions to perform the steps of: opening and closing of the first control valve is controlled to open or close the first air blowing flow path,

and the air inlet volume of the first air vent is greater than that of the third air vent.

8. The compressed air heat exchange system of claim 7, wherein a second port of the third four-way valve is connected to the second vent port, the compressed air heat exchange system further comprising:

a second air supply flow path connected to the second port and a fourth vent above the second vent;

the second control valve is arranged on the second air supply flow path and is electrically connected with the processor;

the processor is further configured to execute the computer instructions to perform the steps of: opening and closing of the second control valve is controlled to open or close the second air blowing flow path,

and the air inlet volume of the second ventilation opening is greater than that of the fourth ventilation opening.

9. The compressed air heat exchange system of claim 8, wherein the processor is further configured to execute computer instructions to perform the steps of:

in a cooling mode, the first control valve is controlled to be opened, and the second control valve is controlled to be closed, so that air is supplied to the indoor space through the first ventilation opening and the third ventilation opening;

and in the heating mode, the first control valve is controlled to be closed, and the second control valve is controlled to be opened, so that air is supplied to the indoor space through the second ventilation opening and the fourth ventilation opening.

10. A compressed air heat exchange system according to any one of claims 2 to 9 wherein the booster expansion assembly comprises:

the compressor and the expander are connected through a rotating shaft, the compressor is provided with a second input end and the high-temperature output end, and the expander is provided with a first input end and the low-temperature output end;

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

the bearing, set up in the junction of compressor and pivot, and the expander with the junction of pivot, motor drive the pivot rotates, drives the compressor with the expander operation makes the entering the air of compressor steps up the intensification, gets into the air step-down cooling of expander.

11. The compressed air heat exchange system of claim 10,

the bearing includes a bump foil type foil bearing including:

the bearing seat is provided with a fixing groove on the inner side wall;

the multilayer foil is sleeved on the inner side of the bearing seat and provided with a fixing part, and the fixing part is matched with the fixing groove to fixedly connect the multilayer foil with the bearing seat; the multilayer foil comprises a flat foil and a bubbling foil sleeved on the radial outer side of the flat foil;

wherein the mounting direction of each layer of the foil is opposite to the rotation direction of the bearing.

12. The compressed air heat exchange system of claim 11,

the bubbling foil comprises a plurality of arc sheets, the arc sheets are distributed at intervals along the circumferential direction of the bearing, the number of the flat foils is two, and the flat foils adjacent to the bubbling foil are connected with the arc sheets; or

The bubbling foil is of an integrated structure, and the number of the flat foils is one.