CN217685413U - Fresh air conditioner - Google Patents
Fresh air conditioner Download PDFInfo
- Publication number
- CN217685413U CN217685413U CN202221996729.5U CN202221996729U CN217685413U CN 217685413 U CN217685413 U CN 217685413U CN 202221996729 U CN202221996729 U CN 202221996729U CN 217685413 U CN217685413 U CN 217685413U
- Authority
- CN
- China
- Prior art keywords
- fresh air
- heat exchanger
- port
- exhaust
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to the technical field of air conditioning, the utility model provides a fresh air conditioner, fresh air conditioner includes the compressor, heat transfer device, a plurality of fresh air heat exchangers, a plurality of throttling arrangement, first refrigerant branch road, the second refrigerant branch road, first switching-over device and second switching-over device, the compressor has the import, first gas vent and second gas vent, the atmospheric pressure of second gas vent is less than first gas vent, heat transfer device has first port and second port, first refrigerant branch road is provided with at least one throttling arrangement and at least one fresh air heat exchanger, the second refrigerant branch road is provided with at least one throttling arrangement and at least one fresh air heat exchanger, first switching-over device sets up on first refrigerant branch road, second switching-over device sets up on the second refrigerant branch road. The fresh air heat exchanger on the first refrigerant branch and the fresh air heat exchanger on the second refrigerant branch have different temperatures, and gradient utilization of refrigerant energy can be realized.
Description
Technical Field
The application relates to the technical field of air conditioning, in particular to a fresh air conditioner.
Background
The fresh air machine usually uses the total heat exchanger for the heat exchange between the fresh air and the indoor exhaust air to realize the cold quantity or heat quantity recovery of the indoor exhaust air, and the fresh air machine can not process the cold and heat load. In the related art, an additional device is required to provide a cold and heat source such as an air conditioner indoor unit to handle cold and heat loads, but such a simple superposition causes a large temperature span in the whole process when the outdoor temperature is low, for example, 0 ℃, fresh air is introduced from the outdoor and is heated to a higher temperature, for example, 50 ℃ for heating due to the low temperature of the outdoor air, and when a single-stage compression cycle is adopted, the system efficiency is low, and the power consumption is large.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present application is expected to provide a fresh air conditioner capable of improving heat exchange efficiency.
In order to achieve the above object, an embodiment of the present application provides a fresh air conditioner, including:
a compressor having an inlet, a first exhaust port, and a second exhaust port having a lower gas pressure than the first exhaust port;
a heat exchange device having a first port and a second port;
a plurality of fresh air heat exchangers;
a plurality of throttling devices;
the first refrigerant branch is communicated with the first port, the second port and the first exhaust port and provided with at least one throttling device and at least one fresh air heat exchanger;
the second refrigerant branch is communicated with the first port, the second port and the second exhaust port, and is provided with at least one throttling device and at least one fresh air heat exchanger;
the first reversing device is arranged on the first refrigerant branch and between the first port and the first exhaust port;
and the second reversing device is arranged on the second refrigerant branch and between the first port and the second exhaust port.
In some embodiments, the fresh air conditioner includes a heating mode, a cooling mode, and a dehumidification mode;
in the heating mode, each fresh air heat exchanger is a condenser, and the heat exchange device is an evaporator;
in the refrigeration mode, each fresh air heat exchanger is an evaporator, and the heat exchange device is a condenser;
in the dehumidification mode, the fresh air heat exchanger on the second refrigerant branch is an evaporator, and the fresh air heat exchanger on the first refrigerant branch is a condenser.
In some embodiments, the fresh air conditioner includes a fresh air duct, each of the fresh air heat exchangers is disposed in the fresh air duct, and in a flow direction of an air flow in the fresh air duct, the fresh air heat exchanger on the second refrigerant branch is located at an upstream of the fresh air heat exchanger on the first refrigerant branch.
In some embodiments, at least one of the first reversing device and the second reversing device is a four-way valve.
In some embodiments, the first reversing device is a three-way valve and the second reversing device is a four-way valve.
In some embodiments, the fresh air conditioner includes an exhaust air duct, the heat exchanging device includes two exhaust heat exchangers both disposed in the exhaust air duct, each exhaust heat exchanger has the first port and the second port, one of the exhaust heat exchangers is disposed on the first refrigerant branch path, and the other exhaust heat exchanger is disposed on the second refrigerant branch path.
In some embodiments, the exhaust heat exchanger on the second refrigerant branch is located downstream of the exhaust heat exchanger on the first refrigerant branch in the flow direction of the air flow in the exhaust duct.
In some embodiments, the heat exchange device is for exchanging heat with a liquid.
In some embodiments, the heat exchanging device includes a heat exchanger having the first port and the second port, and the first refrigerant branch and the second refrigerant branch are both communicated with the first port and the second port of the heat exchanger.
In some embodiments, the fresh air conditioner includes a one-way device disposed on the first refrigerant branch, and the one-way device restricts a unidirectional flow of the refrigerant into the first port of the heat exchanger.
The fresh air conditioner that this application embodiment provided, on the one hand, the compressor has first gas vent and the second gas vent that atmospheric pressure is different, and the refrigerant of different pressure and temperature can independently be exhausted to first refrigerant branch road and second refrigerant branch road respectively. Therefore, the fresh air heat exchanger on the first refrigerant branch, such as the first fresh air heat exchanger, and the fresh air heat exchanger on the second refrigerant branch, such as the second fresh air heat exchanger, have different temperatures, and in the process that fresh air from the outside flows through the first fresh air heat exchanger and the second fresh air heat exchanger, the cascade utilization of refrigerant energy can be realized, the temperature of the fresh air is regulated step by step, and the heat exchange is reduced
Loss, high refrigerating capacity, low power consumption and high efficiencyHigh power consumption and low cost. On the other hand, the flow direction of the refrigerant is changed through the first reversing device and the second reversing device, the temperature of the fresh air can be increased or reduced, and heating or cooling of the fresh air is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a fresh air conditioner in an embodiment of the present application, in which hollow arrows schematically show the flowing direction of an air flow;
fig. 2 is a schematic structural diagram of a fresh air conditioner in an embodiment of the present application, in which dashed arrows and solid arrows schematically show the flowing direction of air flow;
FIG. 3 is a schematic diagram of a fresh air conditioner in another embodiment of the present application, wherein the hollow arrows schematically show the flowing direction of the airflow;
FIG. 4 is a schematic diagram of a fresh air conditioner in another embodiment of the present application, wherein the hollow arrows schematically show the flowing direction of the airflow;
fig. 5 is a schematic structural view of a fresh air conditioner in a further embodiment of the present application, wherein hollow arrows schematically show the flow direction of the air flow.
Description of the reference numerals
A compressor 1; an inlet 1a; a first exhaust port 1b; a second exhaust port 1c;
a heat exchange device 2; a first port 2a; a second port 2b; an exhaust air heat exchanger 201; a first exhaust heat exchanger 201'; a second exhaust heat exchanger 201"; a heat exchanger 202;
a fresh air heat exchanger 3; a first fresh air heat exchanger 3'; a second fresh air heat exchanger 3";
a throttle device 4; a first throttle device 4'; a second throttling means 4";
a first refrigerant branch 5;
a second refrigerant branch 6;
a first commutation device 7;
a second commutation device 8;
a fresh air duct 9; an air inlet 9a; an air outlet 9b;
an exhaust duct 10; an air inlet 10a; an air outlet 10b;
a one-way device 11;
the total heat exchanger 12.
Detailed Description
It should be noted that the embodiments and technical features of the embodiments in the present application may be combined with each other without conflict, and the detailed description in the detailed description should be understood as an explanation of the gist of the present application and should not be construed as an undue limitation to the present application.
The positional or positional relationships in the description of the embodiments of the present application are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present application.
Referring to fig. 1 to 5, an embodiment of the present application provides a fresh air conditioner, which includes a compressor 1, a heat exchanging device 2, a plurality of fresh air heat exchangers 3, a plurality of throttling devices 4, a first refrigerant branch 5, a second refrigerant branch 6, a first reversing device 7, and a second reversing device 8. Specifically, the fresh air heat exchanger 3 is used for exchanging heat for fresh air.
In the present application, the plurality includes two and more than two.
For convenience of description, the number of the fresh air heat exchangers 3 and the number of the throttling devices 4 are illustrated as two examples in the present application. It is understood that the number of the fresh air heat exchangers 3 may be three or more. The first refrigerant branch 5 may be connected in series with a plurality of fresh air heat exchangers 3, for example, two fresh air heat exchangers 3, etc. The second refrigerant branch 6 may be connected in series with a plurality of fresh air heat exchangers 3, for example, two fresh air heat exchangers 3, etc.
The compressor 1 has an inlet 1a, a first exhaust port 1b, and a second exhaust port 1c, the second exhaust port 1c having a lower gas pressure than the first exhaust port 1b. The refrigerant in the compressor 1 is discharged through the first discharge port 1b and the second discharge port 1 c. The refrigerant flows back into the compressor 1 through the inlet 1a.
The pressure of the refrigerant at the second discharge port 1c is lower than the pressure of the refrigerant at the first discharge port 1b. That is, the temperature of the refrigerant discharged from the first discharge port 1b is higher than the temperature of the refrigerant discharged from the second discharge port 1 c.
The heat exchanging device 2 has a first port 2a and a second port 2b. One of the first port 2a and the second port 2b is used for refrigerant to enter the heat exchange device 2, and the other of the first port 2a and the second port 2b is used for refrigerant to be discharged from the heat exchange device 2.
The first refrigerant branch 5 is communicated with the first port 2a, the second port 2b and the first exhaust port 1b, and the first refrigerant branch 5 is provided with at least one throttling device 4 and at least one fresh air heat exchanger 3. Specifically, on the first refrigerant branch 5, each throttling device 4 is located on a refrigerant flow path between each fresh air heat exchanger 3 and the second port 2b. For convenience of description, the fresh air heat exchanger 3 on the first refrigerant branch 5 is defined as a first fresh air heat exchanger 3', and the throttling device 4 on the first refrigerant branch 5 is defined as a first throttling device 4'. The first throttling device 4 'is positioned on the refrigerant flow path between the first fresh air heat exchanger 3' and the second port 2b.
The second refrigerant branch 6 is communicated with the first port 2a, the second port 2b and the second exhaust port 1c, and the second refrigerant branch 6 is provided with at least one throttling device 4 and at least one fresh air heat exchanger 3. Specifically, on the second refrigerant branch 6, each throttling device 4 is located on a refrigerant flow path between each fresh air heat exchanger 3 and the second port 2b. For convenience of description, the fresh air heat exchanger 3 on the second refrigerant branch 6 is defined as a second fresh air heat exchanger 3", and the throttling device 4 on the second refrigerant branch 6 is defined as a second throttling device 4". The second throttling device 4 'is positioned on a refrigerant flow path between the second fresh air heat exchanger 3' and the second port 2b.
Specifically, at least one of the first refrigerant branch 5 and the second refrigerant branch 6 communicates with the inlet 1a. This allows the refrigerant to flow back into the compressor 1.
The first direction changing device 7 is disposed on the first refrigerant branch 5 between the first port 2a and the first exhaust port 1b. The first direction switching device 7 switches the flow direction of the refrigerant from the first exhaust port 1b. For example, the first reversing device 7 conducts the refrigerant from the first exhaust port 1b to the heat exchanging device 2 or the first fresh air heat exchanger 3'.
The second direction changing device 8 is disposed on the second refrigerant branch 6 and between the first port 2a and the second exhaust port 1 c. The second direction switching device 8 is used for switching the flow direction of the refrigerant from the second discharge port 1 c. For example, the second reversing device 8 conducts the refrigerant from the second exhaust port 1c to the heat exchange device 2 or the second fresh air heat exchanger 3 ″.
The fresh air conditioner provided by the embodiment of the application, on the one hand, the compressor 1 has the first exhaust port 1b and the second exhaust port 1c with different air pressures, and refrigerants with different pressures and temperatures can be respectively and independently exhausted to the first refrigerant branch 5 and the second refrigerant branch 6. Therefore, the fresh air heat exchanger 3 on the first refrigerant branch 5, such as the first fresh air heat exchanger 3', and the fresh air heat exchanger 3 on the second refrigerant branch 6, such as the second fresh air heat exchanger 3' have different temperatures, and in the process that the fresh air from the outside flows through the first fresh air heat exchanger 3 'and the second fresh air heat exchanger 3', the cascade utilization of the refrigerant energy can be realized, the temperature of the fresh air is regulated step by step, and the heat exchange is reduced
Loss, improved compressor 1's refrigerating output, reduce power consumption, efficient, the power consumption is low, practices thrift the cost. On the other hand, the flow direction of the refrigerant is changed through the first reversing device 7 and the second reversing device 8, so that the temperature of the fresh air can be increased or reduced, and the heating or the cooling of the fresh air is realized.
The application scenario of the fresh air conditioner in the embodiment of the application is not limited, and for example, the fresh air conditioner is used in a bathroom or a kitchen, and the like.
Illustratively, the throttling device 4 includes, but is not limited to, a throttle expansion valve.
The fresh air heat exchanger 3 includes, but is not limited to, a finned tube heat exchanger or a microchannel heat exchanger.
In one embodiment, the fresh air conditioner comprises a heating mode, a cooling mode and a dehumidifying mode.
In the heating mode, each fresh air heat exchanger 3 is a condenser, and the heat exchange device 2 is an evaporator. That is, the first fresh air heat exchanger 3' and the second fresh air heat exchanger 3 ″ are both condensers.
The condenser refers to a heat exchanger which can change the refrigerant from gaseous heat release to liquid state. The evaporator means that the refrigerant can change from liquid state to heat absorption to gas state. The refrigerant is compressed by the compressor 1 to become a high-pressure high-temperature gaseous refrigerant, and the high-pressure high-temperature gaseous refrigerant is discharged from the first discharge port 1b and the second discharge port 1c to the first refrigerant branch 5 and the second refrigerant branch 6, respectively. The throttling device 4 throttles and decompresses the refrigerant to form a low-temperature and low-pressure gas-liquid mixture.
In the heating mode, on the first refrigerant branch 5, the first reversing device 7 conducts the gaseous refrigerant from the first exhaust port 1b to the first fresh air heat exchanger 3', the fresh air absorbs the heat of the refrigerant in the first fresh air heat exchanger 3', the refrigerant in the first fresh air heat exchanger 3 'is converted into liquid from gaseous heat release, the refrigerant in the first fresh air heat exchanger 3' flows through the first throttling device 4', the first throttling device 4' throttles and decompresses the refrigerant to form a low-temperature and low-pressure gas-liquid mixture, the gas-liquid mixture enters the heat exchange device 2 through the second port 2b to absorb heat and is converted into gaseous from liquid, and the refrigerant from the heat exchange device 2 flows back to the compressor 1 through the first port 2a and the inlet 1a. Thus, the temperature of the fresh air is raised by continuous circulating heat exchange. The flow direction of the refrigerant in the second refrigerant branch 6 is the same as that of the refrigerant in the first refrigerant branch 5, and the description thereof is omitted.
Under the refrigeration mode, each fresh air heat exchanger 3 is an evaporator, and the heat exchange device 2 is a condenser. That is, the first fresh air heat exchanger 3' and the second fresh air heat exchanger 3 ″ are both evaporators.
In a refrigeration mode, on a first refrigerant branch 5, a first reversing device 7 conducts a refrigerant from a first exhaust port 1b to a first port 2a, the refrigerant in the heat exchange device 2 is converted into a liquid state from gaseous heat release, the refrigerant in the heat exchange device 2 flows through a first throttling device 4' through a second port 2b, the first throttling device 4' throttles and decompresses the refrigerant to form a low-temperature and low-pressure gas-liquid mixture, the gas-liquid mixture enters a first fresh air heat exchanger 3', the refrigerant in the first fresh air heat exchanger 3' absorbs heat of fresh air and is converted into a gaseous state, the temperature of the fresh air is reduced after heat release, and the refrigerant from the first fresh air heat exchanger 3' flows back to the compressor 1 through an inlet 1a. The continuous circulation heat exchange realizes the cooling of the fresh air. The flow direction of the refrigerant in the second refrigerant branch 6 is the same as that of the refrigerant in the first refrigerant branch 5, and the description thereof is omitted.
In the dehumidification mode, the fresh air heat exchanger 3 on the second refrigerant branch 6 is an evaporator, and the fresh air heat exchanger 3 on the first refrigerant branch 5 is a condenser. Specifically, in the flow direction of the fresh air, the fresh air heat exchanger 3 on the second refrigerant branch 6 is located at the upstream of the fresh air heat exchanger 3 on the first refrigerant branch 5.
In the dehumidification mode, the second direction changing device 8 conducts the refrigerant from the second discharge port 1c to the first port 2a in the second refrigerant branch 6. On the first refrigerant branch 5, the first reversing device 7 conducts the refrigerant from the first exhaust port 1b to the first fresh air heat exchanger 3'. The fresh air exchanges heat with the refrigerant in the second fresh air heat exchanger 3 'for cooling and dehumidifying, and the cooled and dehumidified fresh air exchanges heat with the refrigerant in the first fresh air heat exchanger 3' for warming, so that constant-temperature dehumidification is basically realized.
The new trend air conditioner of this embodiment can realize heating, refrigeration and constant temperature dehumidification to the new trend, and the function is more comprehensive, and user experience is good.
In an embodiment, referring to fig. 1, fig. 3, fig. 4 and fig. 5, the fresh air conditioner includes a fresh air duct 9, each fresh air heat exchanger 3 is disposed in the fresh air duct 9, and in a flow direction of an air flow in the fresh air duct 9, the fresh air heat exchanger 3 on the second refrigerant branch 6 is located at an upstream of the fresh air heat exchanger 3 on the first refrigerant branch 5. That is, the second fresh air heat exchanger 3 "is located upstream of the first fresh air heat exchanger 3'.
Here, the air inlet 9a of the fresh air duct 9 communicates with the outdoor space, the air outlet 9b of the fresh air duct 9 communicates with the indoor space, and the fresh air duct 9 is used for introducing outdoor fresh air into the indoor space. The second fresh air heat exchanger 3 ″ is located upstream of the first fresh air heat exchanger 3', that is, the second fresh air heat exchanger 3 ″ is located on the side of the first fresh air heat exchanger 3' close to the air inlet 9 a. Thus, the fresh air from the air inlet 9a flows through the second fresh air heat exchanger 3 ″ and then flows through the first fresh air heat exchanger 3'. Taking the heating mode as an example, because the temperature of the refrigerant in the second fresh air heat exchanger 3 ″ is lower than that of the refrigerant in the first fresh air heat exchanger 3', the temperature of the fresh air can be adjusted step by step, and the cascade utilization of energy can be realized.
In one embodiment, the fresh air conditioner includes a fresh air blower for driving outdoor air flow into the indoor space through a fresh air duct 9.
In some embodiments, referring to fig. 1, 3, 4 and 5, at least one of the first reversing device 7 and the second reversing device 8 is a four-way valve. In an exemplary embodiment, the first reversing device 7 is a four-way valve. Four valve ports of the first reversing device 7 are respectively connected with the first exhaust port 1b, the inlet 1a, the first port 2a and a first fresh air heat exchanger 3'. In one embodiment, the second reversing device 8 is a four-way valve. Four valve ports of the second reversing device 8 are respectively connected with the second exhaust port 1c, the inlet 1a, the first port 2a and a second fresh air heat exchanger 3". In one embodiment, the first reversing device 7 and the second reversing device 8 are both four-way valves.
For example, the first reversing device 7 and the second reversing device 8 are both solenoid valves. Therefore, the control device of the fresh air conditioner can control the on or off of the first reversing device 7 and the second reversing device 8 conveniently.
In one embodiment, referring to fig. 5, the first reversing device 7 is a three-way valve, and the second reversing device 8 is a four-way valve. Three valve ports of the first reversing device 7 are respectively connected with the first exhaust port 1b, the first port 2a and the first fresh air heat exchanger 3', and four valve ports of the second reversing device 8 are respectively connected with the second exhaust port 1c, the inlet 1a, the first port 2a and the second fresh air heat exchanger 3". Thus, the pipeline of the first refrigerant branch 5 is simpler and uses fewer pipes.
In an embodiment, referring to fig. 1, the fresh air conditioner includes an exhaust air duct 10, the heat exchanging device 2 includes two exhaust heat exchangers 201 both disposed in the exhaust air duct 10, each exhaust heat exchanger 201 has a first port 2a and a second port 2b, one of the exhaust heat exchangers 201 is disposed on the first refrigerant branch 5, and the other exhaust heat exchanger 201 is disposed on the second refrigerant branch 6. An air inlet 10a of the air exhaust duct 10 communicates with the indoor space, and an air outlet 10b of the air exhaust duct 10 communicates with the outdoor space. Specifically, the first port 2a of one of the exhaust air heat exchangers 201 is connected with the first reversing device 7, and the second port 2b is connected with the first throttling device 4'. The first port 2a of the other exhaust air heat exchanger 201 is connected to the second reversing device 8, and the second port 2b is connected to the second throttling device 4".
For convenience of description, the exhausting heat exchanger 201 on the first refrigerant branch 5 is defined as a first exhausting heat exchanger 201', and the exhausting heat exchanger 201 on the second refrigerant branch 6 is defined as a second exhausting heat exchanger 201 ″. Therefore, the refrigerant in the first refrigerant branch 5 and the refrigerant in the second refrigerant branch 6 flow independently, and the gradient utilization of the refrigerant energy can be realized in the process that indoor exhaust air flows through the first exhaust heat exchanger 201' and the second exhaust heat exchanger 201 ″, so that the heat exchange is reduced
And (4) loss.
In an embodiment, referring to fig. 1, in the flow direction of the air flow in the exhaust air duct 10, the exhaust heat exchanger 201 on the second refrigerant branch 6 is located downstream of the exhaust heat exchanger 201 on the first refrigerant branch 5. That is, the air flow in the exhaust duct 10 firstly flows through the exhaust heat exchanger 201, such as the first exhaust heat exchanger 201', on the first refrigerant branch 5, and then flows through the exhaust heat exchanger 201, such as the second exhaust heat exchanger 201", on the second refrigerant branch 6. Taking the refrigeration mode as an example, because the temperature of the refrigerant in the second fresh air heat exchanger 3 ″ is lower than that of the refrigerant in the first fresh air heat exchanger 3', the gradual temperature adjustment of the exhaust air can be realized, and the step utilization of energy can be realized.
In one embodiment, the fresh air conditioner includes an exhaust fan for driving the indoor air flow to be exhausted to the outdoor space through the exhaust duct 10.
Illustratively, the exhaust air heat exchanger 201 includes, but is not limited to, a finned tube heat exchanger or a microchannel heat exchanger, or the like.
In an embodiment, referring to fig. 2, the fresh air conditioner includes a total heat exchanger 12 disposed at the junction of the fresh air duct 9 and the exhaust air duct 10, and the fresh air and the indoor exhaust air respectively enter the fresh air duct 9 and the exhaust air duct 10 after performing heat-mass exchange in the total heat exchanger 12.
In one embodiment, referring to fig. 4 and 5, the heat exchange device 2 is used for exchanging heat with a liquid. That is, the liquid absorbs heat of the refrigerant or releases heat to the refrigerant. Therefore, the air exhaust duct 10 is not arranged on the fresh air conditioner, so that the fresh air conditioner is convenient to arrange in a suspended ceiling of a bathroom or a kitchen, and the wall punching is reduced.
The type of liquid is not limited, and exemplary liquids include, but are not limited to, water. For example, the fresh air conditioner includes a liquid storage tank for storing liquid, and the heat exchanging device 2 is accommodated in the liquid storage tank. The liquid may be sprayed onto the heat exchange device 2 or the heat exchange device 2 may be immersed in the liquid in the tank.
The source of the water is not limited, and in one embodiment, the water can be tap water. That is, the water supply line supplies water to the reservoir. Illustratively, tap water enters the liquid storage tank to exchange heat with the refrigerant of the heat exchange device 2.
It can be understood that the refrigerant in the heat exchanger 2 and the liquid have a temperature difference to realize heat exchange.
In an embodiment, referring to fig. 3 to fig. 5, the heat exchanging device 2 includes a heat exchanger 202, the heat exchanger 202 has a first port 2a and a second port 2b, and the first refrigerant branch 5 and the second refrigerant branch 6 are both communicated with the first port 2a and the second port 2b of the heat exchanger 202. The fresh air conditioner has simpler structure, fewer pipes for refrigerant pipelines and lower cost.
In one embodiment, referring to fig. 3 and 4, the fresh air conditioner includes a one-way device 11 disposed on the first refrigerant branch 5, and the one-way device 11 restricts one-way flow of the refrigerant into the first port 2a of the heat exchanger 202. That is, the refrigerant from the first port 2a of the heat exchanger 202 cannot flow through the first direction changing device 7. The heat exchanger 202 may be in heat exchange relationship with outdoor air flow or liquid heat exchange relationship.
The check device 11 includes, but is not limited to, a check valve.
Four embodiments of the present application, a first embodiment, will be shown below:
referring to fig. 1 and 2, the fresh air conditioner includes a total heat exchanger 12 disposed at the intersection of an exhaust air duct 10 and a fresh air duct 9, the first reversing device 7 and the second reversing device 8 are both four-way valves, the first refrigerant branch 5 is provided with a first fresh air heat exchanger 3', a first throttling device 4' and a first exhaust heat exchanger 201', and the second refrigerant branch 6 is provided with a second fresh air heat exchanger 3", a second throttling device 4 ″ and a second exhaust heat exchanger 201".
After heat and mass exchange is carried out on fresh air and exhaust air in the total heat exchanger 12, the fresh air respectively enters the fresh air duct 9 and the exhaust air duct 10, wherein the fresh air sequentially flows through the second fresh air heat exchanger 3 'and the first fresh air heat exchanger 3' in the fresh air duct 9, so that gradual temperature rise or reduction of the fresh air is realized, the energy utilization efficiency of the fresh air conditioner is improved, and the whole fresh air conditioner is improved
Efficiency.
In the heating mode: the slide block of the first reversing device 7 is cut to the right end, at the moment, the first exhaust port 1b is communicated with the first fresh air heat exchanger 3', and the refrigerant coming out of the first exhaust port 1b sequentially flows through the first reversing device 7, the first fresh air heat exchanger 3', the first throttling device 4 'and the first exhaust heat exchanger 201', so that a first heating loop is formed. The right end is cut to the slide block of the second reversing device 8, the second exhaust port 1c is communicated with the second fresh air heat exchanger 3", and the refrigerant coming out of the second exhaust port 1c sequentially flows through the second reversing device 8, the second fresh air heat exchanger 3", the second throttling device 4 "and the second exhaust heat exchanger 201", so that a second heating loop is formed.
In the cooling mode: the slide block of the first reversing device 7 is cut to the left end, at this time, the first exhaust port 1b is communicated with the first exhaust heat exchanger 201', and the refrigerant coming out of the first exhaust port 1b sequentially flows through the first reversing device 7, the first exhaust heat exchanger 201', the first throttling device 4 'and the first fresh air heat exchanger 3' to form a first refrigeration loop. The slide block of the second reversing device 8 is cut to the left end, the second air exhaust port 1c is communicated with the second air exhaust heat exchanger 201", and the refrigerant coming out of the second air exhaust port 1c sequentially flows through the second reversing device 8, the second air exhaust heat exchanger 201", the second throttling device 4 "and the second fresh air heat exchanger 3" to form a second refrigeration loop.
In the dehumidification mode: the slide block of the first reversing device 7 is cut to the right end, at this time, the first exhaust port 1b is communicated with the first fresh air heat exchanger 3', and the refrigerant coming out of the first exhaust port 1b sequentially flows through the first reversing device 7, the first fresh air heat exchanger 3', the first throttling device 4 'and the first exhaust heat exchanger 201', so that a heating and warming loop is formed. The slide block of the second reversing device 8 is cut to the left end, the second air exhaust port 1c is communicated with the second air exhaust heat exchanger 201", and the refrigerant coming out of the second air exhaust port 1c sequentially flows through the second reversing device 8, the second air exhaust heat exchanger 201", the second throttling device 4 "and the second fresh air heat exchanger 3" to form a refrigerating and dehumidifying loop.
The second embodiment:
referring to fig. 3, the difference from the first embodiment is: the heat exchanger 2 comprises a heat exchanger 202 and the first refrigerant branch 5 is provided with a one-way device 11. Other structural components are the same as those of the first embodiment, and are not described again. Therefore, the refrigerant pipeline of the fresh air conditioner can be simplified, and the short circuit between the two high-low pressure flow paths of the first refrigerant branch 5 and the second refrigerant branch 6 can be prevented.
In the heating mode: the slide block of the first reversing device 7 is cut to the right end, at the moment, the first exhaust port 1b is communicated with the first fresh air heat exchanger 3', and the refrigerant coming out of the first exhaust port 1b sequentially flows through the first reversing device 7, the first fresh air heat exchanger 3' and the first throttling device 4' to form a first heating loop. The right end is cut to the slider of second switching-over device 8, and second gas vent 1c is linked together with second new trend heat exchanger 3", and the refrigerant that comes out from second gas vent 1c flows through second switching-over device 8, second new trend heat exchanger 3" and second throttling arrangement 4 "in proper order, forms the second and heats the return circuit. The two paths of refrigerants of the first heating loop and the second heating loop are gathered and then enter the heat exchanger 202, and then due to the action of the one-way device 11, the gathered refrigerants flow into the inlet 1a through the low-pressure suction pipe of the second reversing device 8.
In the cooling mode: the slide block of the first reversing device 7 is cut to the left end, and the first exhaust port 1b is communicated with the first exhaust heat exchanger 201'; the slide block of the second reversing device 8 is cut to the left end, and the second exhaust port 1c is communicated with the first exhaust heat exchanger 201'; the refrigerant discharged from the first discharge port 1b and the second discharge port 1c join together and enter the heat exchanger 202. The refrigerant coming out of the heat exchanger 202 enters the first fresh air heat exchanger 3 'and the second fresh air heat exchanger 3 "after passing through the first throttling device 4' and the second throttling device 4", and finally flows into the inlet 1a through the low-pressure air suction pipes of the first reversing device 7 and the second reversing device 8.
In the dehumidification mode: the slide block of the first reversing device 7 is cut to the right end, at the moment, the first exhaust port 1b is communicated with the first fresh air heat exchanger 3', and the refrigerant coming out of the first exhaust port 1b sequentially flows through the first reversing device 7 and the first fresh air heat exchanger 3' to form a heating and temperature-rising loop. The slide block of the second reversing device 8 is cut to the left end, and the second exhaust port 1c is communicated with the first exhaust heat exchanger 201'. The refrigerant from the second air outlet 1c flows through the second reversing device 8 and the first exhaust heat exchanger 201' in sequence; the first throttling device 4 'can be in a fully opened state, two refrigerants are finally gathered in front of the second throttling device 4', then are throttled by the second throttling device 4', enter the second fresh air heat exchanger 3' for refrigeration and dehumidification, and finally flow into the inlet 1a through the low-pressure air suction pipe of the second reversing device 8.
The third embodiment:
referring to fig. 4, the difference from the second embodiment is: the heat exchanger 202 is used to exchange heat with a liquid. The heat exchanger 202 may be coupled to a water circuit of a ground source, water source, and/or solar power system. Other structural components are the same as those of the second embodiment, and the refrigerant flow paths in the heating mode, the cooling mode, and the dehumidifying mode are also the same as those of the second embodiment, and thus, detailed description thereof is omitted.
Illustratively, the heat exchanger 202 includes, but is not limited to, a liquid dividing wall type heat exchanger 202 for exchanging heat between a refrigerant and a liquid such as water.
The fourth embodiment:
referring to fig. 5, the difference from the third embodiment is: the first reversing device 7 is a three-way valve, and the first refrigerant branch 5 is not connected with the inlet 1a. The one-way device 11 on the first refrigerant branch 5 is eliminated. Other structural components are the same as those of the third embodiment, and are not described again.
In the heating mode: the three-way valve is conducted, at this time, the first exhaust port 1b is communicated with the first fresh air heat exchanger 3', and the refrigerant coming out of the first exhaust port 1b sequentially flows through the three-way valve, the first fresh air heat exchanger 3' and the first throttling device 4' to form a first heating loop. The right end is cut to the slider of second switching-over device 8, and second gas vent 1c is linked together with second new trend heat exchanger 3", and the refrigerant that comes out from second gas vent 1c flows through second switching-over device 8, second new trend heat exchanger 3" and second throttling arrangement 4 "in proper order, forms the second and heats the return circuit. The two paths of fluid of the first heating loop and the second heating loop are gathered and then enter the heat exchanger 202, and the gathered refrigerant flows into the inlet 1a through the low-pressure suction pipe of the second reversing device 8.
In the cooling mode: the three-way valve is communicated, and at the moment, the first exhaust port 1b is communicated with the first exhaust heat exchanger 201'; the slide block of the second reversing device 8 is cut to the left end, and the second exhaust port 1c is communicated with the first exhaust heat exchanger 201'; the refrigerant discharged from the first discharge port 1b and the second discharge port 1c join together and enter the heat exchanger 202. The refrigerant coming out of the heat exchanger 202 enters the second fresh air heat exchanger 3 "after passing through the second throttling device 4", and finally flows into the inlet 1a through the low-pressure suction pipe of the second reversing device 8. At this time, the first throttle device 4' is in a closed state.
In the dehumidification mode: the three-way valve is conducted, at this time, the first exhaust port 1b is communicated with the first fresh air heat exchanger 3', and the refrigerant coming out of the first exhaust port 1b sequentially flows through the first reversing device 7 and the first fresh air heat exchanger 3', so that a heating and temperature rising loop is formed. The slide block of the second reversing device 8 is cut to the left end, the second exhaust port 1c is communicated with the first exhaust heat exchanger 201', and the refrigerant coming out of the second exhaust port 1c sequentially flows through the second reversing device 8 and the heat exchanger 202; the first throttling device 4 'can be in a fully opened state, two refrigerants are gathered in front of the second throttling device 4', then are throttled by the second throttling device 4', enter the second fresh air heat exchanger 3' for refrigeration and dehumidification, and finally flow into the inlet 1a through the low-pressure air suction pipe of the second reversing device 8.
The various embodiments/implementations provided herein can be combined with each other without contradiction.
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 to the present application 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 (10)
1. A fresh air conditioner is characterized by comprising:
a compressor having an inlet, a first exhaust port, and a second exhaust port, the second exhaust port having a lower gas pressure than the first exhaust port;
a heat exchange device having a first port and a second port;
a plurality of fresh air heat exchangers;
a plurality of throttling devices;
the first refrigerant branch is communicated with the first port, the second port and the first exhaust port, and is provided with at least one throttling device and at least one fresh air heat exchanger;
the second refrigerant branch is communicated with the first port, the second port and the second exhaust port, and is provided with at least one throttling device and at least one fresh air heat exchanger;
the first reversing device is arranged on the first refrigerant branch and between the first port and the first exhaust port;
and the second reversing device is arranged on the second refrigerant branch and between the first port and the second exhaust port.
2. The fresh air conditioner as claimed in claim 1, wherein the fresh air conditioner comprises a heating mode, a cooling mode and a dehumidifying mode;
in the heating mode, each fresh air heat exchanger is a condenser, and the heat exchange device is an evaporator;
in the refrigeration mode, each fresh air heat exchanger is an evaporator, and the heat exchange device is a condenser;
in the dehumidification mode, the fresh air heat exchanger on the second refrigerant branch is an evaporator, and the fresh air heat exchanger on the first refrigerant branch is a condenser.
3. The fresh air conditioner according to claim 1, wherein the fresh air conditioner comprises a fresh air duct, each fresh air heat exchanger is disposed in the fresh air duct, and the fresh air heat exchanger on the second refrigerant branch is located upstream of the fresh air heat exchanger on the first refrigerant branch in a flow direction of an air flow in the fresh air duct.
4. The fresh air conditioner as claimed in claim 1, wherein at least one of the first direction changing device and the second direction changing device is a four-way valve.
5. The fresh air conditioner as claimed in claim 1, wherein the first direction changing device is a three-way valve and the second direction changing device is a four-way valve.
6. The fresh air conditioner as claimed in claim 1, wherein the fresh air conditioner includes an exhaust air duct, the heat exchange device includes two exhaust heat exchangers disposed in the exhaust air duct, each exhaust heat exchanger has the first port and the second port, one of the exhaust heat exchangers is disposed on the first refrigerant branch, and the other exhaust heat exchanger is disposed on the second refrigerant branch.
7. The fresh air conditioner as claimed in claim 6, wherein the exhaust heat exchanger of the second refrigerant branch is located downstream of the exhaust heat exchanger of the first refrigerant branch in the flow direction of the air flow in the exhaust duct.
8. The fresh air conditioner as claimed in claim 1, wherein the heat exchange device is used for exchanging heat with liquid.
9. The fresh air conditioner as claimed in claim 1, wherein the heat exchanging device comprises a heat exchanger having the first port and the second port, and the first refrigerant branch and the second refrigerant branch are both communicated with the first port and the second port of the heat exchanger.
10. The fresh air conditioner as claimed in claim 9, wherein the fresh air conditioner comprises a one-way device disposed on the first refrigerant branch, the one-way device restricting a unidirectional flow of the refrigerant into the first port of the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221996729.5U CN217685413U (en) | 2022-07-29 | 2022-07-29 | Fresh air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221996729.5U CN217685413U (en) | 2022-07-29 | 2022-07-29 | Fresh air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217685413U true CN217685413U (en) | 2022-10-28 |
Family
ID=83720376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221996729.5U Active CN217685413U (en) | 2022-07-29 | 2022-07-29 | Fresh air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217685413U (en) |
-
2022
- 2022-07-29 CN CN202221996729.5U patent/CN217685413U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101713599B (en) | Air-conditioning heat pump device | |
| CN102645060A (en) | Multi-split air conditioning system | |
| EP2541169A1 (en) | Air conditioner and air-conditioning hot-water-supplying system | |
| CN106705298B (en) | Multi-connected fresh air conditioning unit with exhaust heat pump heat recovery function and heat exchange method | |
| CN104101125A (en) | Air conditioner | |
| CN101625175A (en) | Multifunctional air-condition heat pump device of single-double level compression and capable of free switch | |
| JP4041067B2 (en) | Air conditioner with air conditioning function | |
| CN210951942U (en) | Thermal management system | |
| CN2884059Y (en) | Cold/hot parallel type cold water supply set | |
| JP2005515395A5 (en) | ||
| CN212511480U (en) | Air conditioner heat exchanger, refrigerant circulating system and air conditioner | |
| CN203203288U (en) | Air conditioner | |
| CN210832213U (en) | Air conditioner | |
| CN215892840U (en) | Energy-saving dehumidifying refrigeration heat exchange device | |
| CN217685413U (en) | Fresh air conditioner | |
| CN111412687A (en) | Refrigeration and heating integrated heat exchange system | |
| CN215930176U (en) | Refrigerating system | |
| CN215638112U (en) | Refrigerating system | |
| CN215930175U (en) | Refrigerating system | |
| CN114877721A (en) | Heat exchange device and heat exchange system | |
| CN104121721A (en) | Single-and-double-stage switchable heat pump | |
| CN210832348U (en) | Multi-connected refrigerating system | |
| CN114046612A (en) | Air conditioner/floor heating/ground cooling multi-connected system with double evaporation temperatures | |
| CN109631171B (en) | Multi-heat exchanger window type air conditioner with fresh air function | |
| CN115523678A (en) | Heat pump system, vehicle and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |