CN113587213A - Low-noise refrigerating and heating bidirectional dehumidifying air conditioner - Google Patents
Low-noise refrigerating and heating bidirectional dehumidifying air conditioner Download PDFInfo
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- CN113587213A CN113587213A CN202110960072.0A CN202110960072A CN113587213A CN 113587213 A CN113587213 A CN 113587213A CN 202110960072 A CN202110960072 A CN 202110960072A CN 113587213 A CN113587213 A CN 113587213A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Magnetically Actuated Valves (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a low-noise refrigerating and heating bidirectional dehumidifying air conditioner, which comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger; the indoor heat exchanger comprises an indoor upper heat exchanger and an indoor lower heat exchanger, and the indoor upper heat exchanger and the indoor lower heat exchanger are connected in series through a capillary tube-one-way stop solenoid valve pipeline assembly; the outdoor heat exchanger is provided with an electronic expansion valve, one end of the outdoor heat exchanger is connected with the indoor upper heat exchanger, the other end of the outdoor heat exchanger is connected with the compressor, and the other end of the compressor is connected with the indoor lower heat exchanger; the capillary-one-way stop solenoid valve pipeline assembly is a parallel pipeline assembly consisting of a mute throttle capillary and two one-way stop solenoid valves; the two one-way cut-off electromagnetic valves are connected in series, and the one-way cut-off directions are opposite. The invention can well solve the problems of insufficient dehumidification capacity of the common split air conditioner and temperature drop of indoor side rooms in the dehumidification process, and can also reduce noise generated in the dehumidification process of the indoor unit.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a low-noise refrigerating and heating bidirectional dehumidifying air conditioner.
Background
The existing household air conditioner has a dehumidification function, but the traditional household air conditioner can only dehumidify when a refrigeration system operates, and in the dehumidification process, not only is room dehumidification performed, but also the temperature of a room is reduced. When the dehumidification function is turned on, a whiz dehumidification cold blast is blown to the user, causing discomfort. Accordingly, the application company designs a refrigeration and heating bidirectional dehumidification air conditioner (patent application number CN202110061834.3), and the air conditioner not only has a dehumidification function, but also can realize the effects of no cooling and dehumidification during refrigeration operation and heat and dehumidification during heating operation. However, the air conditioner still has the disadvantages that in the running process of the air conditioner, when the internal refrigerant flows, the dehumidification valve component adopted by the indoor unit of the air conditioner generates serious airflow sound of the refrigerant due to sudden change of the section of the internal pipeline, and the irregular abnormal noise generated by the indoor unit greatly reduces the user experience.
Accordingly, there is a need for a low-noise bi-directional dehumidification air conditioner for cooling and heating.
Disclosure of Invention
The invention aims to provide a low-noise refrigerating and heating bidirectional dehumidifying air conditioner.
The invention adopts the following technical scheme to solve the technical problems:
a low-noise refrigerating and heating bidirectional dehumidifying air conditioner comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger; the indoor heat exchanger comprises an indoor upper heat exchanger and an indoor lower heat exchanger, and the indoor upper heat exchanger and the indoor lower heat exchanger are connected in series through a capillary tube-one-way stop solenoid valve pipeline assembly; the outdoor heat exchanger is an outdoor heat exchanger with an electronic expansion valve, one end of the outdoor heat exchanger is connected with the indoor upper heat exchanger, the other end of the outdoor heat exchanger is connected with the compressor, and the other end of the compressor is connected with the indoor lower heat exchanger; the capillary-one-way stop solenoid valve pipeline assembly is a parallel pipeline assembly consisting of a mute throttle capillary and two one-way stop solenoid valves, the two one-way stop solenoid valves are connected in series, and the one-way stop directions are opposite.
In a preferred embodiment of the present invention, the inner diameter of the noise reduction capillary tube has a configuration in which the ends are thick and the middle is thin, and the thickness gradually changes.
In a preferred embodiment of the present invention, the maximum inner diameter of the silencing orifice capillary is 3.0mm, and the minimum inner diameter is 1.0 mm.
As one preferable mode of the present invention, the one-way cut-off solenoid valve has two states of "on" and "off"; when the one-way cut-off solenoid valve is in an electrified state, the one-way cut-off solenoid valve cuts off the flow of the refrigerant in one way; when the one-way cut-off solenoid valve is in a power-off state, the inside of the one-way cut-off solenoid valve is completely opened to form a refrigerant free flow channel.
As one of the preferable modes of the invention, two one-way cut-off solenoid valves in the capillary tube-one-way cut-off solenoid valve pipeline assembly are respectively a one-way cut-off solenoid valve a and a one-way cut-off solenoid valve B; the one-way cut-off solenoid valve A and the one-way cut-off solenoid valve B are connected in series, and meanwhile, the one-way cut-off direction of the one-way cut-off solenoid valve A is upward, and the one-way cut-off direction of the one-way cut-off solenoid valve B is downward.
As one preferable mode of the present invention, when the unidirectional cut-off solenoid valve a is in an "on" state and the unidirectional cut-off solenoid valve B is in a "off" state, the refrigerant flowing through the capillary-unidirectional cut-off solenoid valve pipeline assembly flows upward through the branch where the mute throttling capillary tube is located; when the one-way cut-off solenoid valve B is in an 'electrified' state and the one-way cut-off solenoid valve A is in a 'power-off' state, the refrigerant flowing through the capillary tube-one-way cut-off solenoid valve pipeline assembly flows downwards through the branch where the mute throttle capillary tube is located.
In a preferred embodiment of the present invention, the inner diameter of the pipe connecting the mute throttle capillary and another structure in the capillary-unidirectional cut-off solenoid valve pipe assembly is 4.5 mm.
As one of the preferable modes of the invention, the two one-way cut-off solenoid valves in the capillary tube-one-way cut-off solenoid valve pipeline assembly adopt solenoid valves-FDF-A02040-036-RK 1 produced by Zhejiang three-flower refrigeration group Limited.
In a preferred embodiment of the present invention, a two-way stop valve is disposed between the outdoor heat exchanger and the indoor upper heat exchanger, a four-way valve is disposed between the outdoor heat exchanger and the compressor, and a three-way stop valve is disposed between the compressor and the indoor lower heat exchanger.
As one of the preferable modes of the invention, the invention also comprises a cross-flow fan; the cross flow fan is disposed at the indoor heat exchanger.
As one of the preferable modes of the invention, the invention also comprises an indoor machine drain pipe; one end of the indoor unit drain pipe is connected with the indoor heat exchanger, and the other end of the indoor unit drain pipe is connected with the outside.
The air conditioner of the invention has two dehumidification modes: (1) a dehumidification mode (thermal dehumidification) in the heating operation of the air conditioning system; (2) and (4) a dehumidification mode (no temperature reduction and dehumidification) under the refrigeration operation of the air conditioning system.
When heating operation dehumidification (hot dehumidification) is performed: the high-temperature and high-pressure gas refrigerant discharged by the compressor enters the indoor lower heat exchanger to be condensed into liquid refrigerant, and heat is released to heat indoor air; then, as the one-way cut-off solenoid valve A is adjusted to be in an 'on' state and the one-way cut-off solenoid valve B is adjusted to be in an 'off' state, the liquid refrigerant is transported through the branch where the mute throttling capillary tube is located, and the mute throttling is carried out on the refrigerant in the mute throttling capillary tube; and then, the throttled low-pressure refrigerant flows into the indoor upper heat exchanger to evaporate and absorb heat, so that certain indoor air temperature is reduced, and the dehumidification function is realized.
When the dehumidification mode (cooling-free dehumidification) is performed in the cooling operation: the high-temperature and high-pressure gas refrigerant discharged by the compressor enters the outdoor heat exchanger to be condensed into liquid refrigerant; then, as the electronic expansion valve of the outdoor heat exchanger is completely opened without throttling, the liquid refrigerant enters the indoor upper heat exchanger to carry out secondary condensation heat release; then, as the one-way cut-off solenoid valve B is adjusted to be in an 'on' state and the one-way cut-off solenoid valve A is adjusted to be in an 'off' state, the liquid refrigerant is transported through a branch where the mute throttling capillary tube is located, and the mute throttling is carried out on the refrigerant in the mute throttling capillary tube; and finally, the throttled low-pressure refrigerant flows into the lower indoor heat exchanger to evaporate and absorb heat, so that certain indoor air temperature is reduced, and the dehumidification function is realized.
Compared with the prior art, the invention has the advantages that:
(1) the invention cancels a dehumidification valve generating abnormal noise, and uses a mute throttling capillary tube to reduce abnormal noise of 'water flow sound' and 'airflow sound' generated by the flow of a refrigerant in the heat exchanger of the indoor unit; specifically, an indoor heat exchanger is divided into two parts of heat exchangers which are connected in series, and a capillary tube-one-way stop solenoid valve pipeline assembly is used for carrying out low-noise non-cooling dehumidification during the refrigerating operation and low-noise heat dehumidification during the heating operation of the air-conditioning refrigerating system (not only cooling is not carried out in the dehumidification process, but also the temperature of a room can be raised, and meanwhile, abnormal noise of an indoor unit is eliminated);
(2) the inner diameter of a pipeline of the existing refrigerating and heating bidirectional dehumidifying air conditioner is generally 4.5mm, the inner diameter of the pipeline inside a dehumidifying valve is 0.5mm, and corresponding noise is caused based on the inner diameter difference; the invention adopts the mute throttle capillary tube to replace the dehumidification valve, and the inner diameter of the throttle capillary tube is in a structural form of gradually thinning (1.0mm) from thick (3.0mm) to thick (3.0mm), the design can lead the flowing section of the refrigerant in the capillary tube to slowly and gradually change (transition from 4.5mm to 3.0mm to 1.0mm to 3.0mm), thereby effectively avoiding the generation of airflow sound of the flowing refrigerant;
(3) the invention integrates the room air conditioner and the dehumidifier into a whole, simplifies the number of components, reduces the occupied space of the components and reduces the cost;
(4) the mute throttling capillary tube is controlled by the two one-way stop electromagnetic valves, so that when a refrigerant in the mute throttling capillary tube flows during heating and refrigerating, the one-way flow is ensured; the air conditioner of the invention has two dehumidification modes: the method comprises the following steps of (1) dehumidifying mode (thermal dehumidification) under heating operation of an air conditioning system and (non-cooling dehumidification) under refrigerating operation of the air conditioning system); when heating operation (thermal dehumidification) is carried out, the dehumidification amount is small, the dehumidification device is suitable for room environment at the temperature of 8-20 ℃, not only can dehumidify a room, but also can heat the room, and the requirements of large-humidity, cool and humid weather in winter at seaside and in southern areas are met; when the refrigeration operation (cooling and dehumidification are not performed), the dehumidification amount is large, and the power-saving dehumidification device is suitable for long-term power saving dehumidification under the condition that a room is not occupied;
(5) the common dehumidifier needs to often and manually remove accumulated water in the water tank, and the operation is troublesome; the condensed water produced in the dehumidification process of the air conditioner can be directly discharged to the outdoor side through the indoor unit drain pipe, so that the trouble caused by frequent water pouring is avoided.
In conclusion, the invention not only can well solve the problems of insufficient dehumidification capacity of the common split air conditioner and temperature reduction of the indoor side room in the dehumidification process, but also can reduce noise generated in the dehumidification process of the indoor unit, and bring excellent experience to users.
Drawings
FIG. 1 is a schematic structural diagram of a low-noise refrigerating and heating bidirectional dehumidifying air conditioner in the heat dehumidifying mode in embodiment 1;
fig. 2 is a schematic structural diagram of the low-noise cooling and heating bidirectional dehumidifying air conditioner in embodiment 1 in a non-cooling dehumidifying mode.
In the figure: the heat exchanger comprises a compressor 1, an outdoor heat exchanger 2, an indoor heat exchanger 3, an indoor upper heat exchanger 31, an indoor lower heat exchanger 32, a capillary tube-one-way stop solenoid valve pipeline assembly 4, a mute throttling capillary tube 41, a one-way stop solenoid valve 42, a one-way stop solenoid valve A421, a one-way stop solenoid valve B422, an electronic expansion valve 5, a two-way stop valve 6, a four-way valve 7, a three-way stop valve 8 and a cross-flow fan 9.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
As shown in fig. 1 to 2, the low-noise cooling and heating bidirectional dehumidifying air conditioner of the present embodiment includes a compressor 1, an outdoor heat exchanger 2, and an indoor heat exchanger 3. The indoor heat exchanger 3 comprises an indoor upper heat exchanger 31 and an indoor lower heat exchanger 32, and the indoor upper heat exchanger 31 and the indoor lower heat exchanger 32 are connected in series through a capillary tube-one-way cutoff solenoid valve pipeline assembly 4. The outdoor heat exchanger 2 is an outdoor heat exchanger 2 with an electronic expansion valve 5, one end of the outdoor heat exchanger 2 is connected with the indoor upper heat exchanger 31, the other end of the outdoor heat exchanger 2 is connected with the compressor 1, and the other end of the compressor 1 is connected with the indoor lower heat exchanger 32. The capillary-one-way cut-off solenoid valve pipeline assembly 4 is a parallel pipeline assembly formed by a mute throttle capillary 41 and two one-way cut-off solenoid valves 42, the two one-way cut-off solenoid valves 42 are connected in series, and the one-way cut-off directions are opposite.
Further, in the present embodiment, the inside diameter of the mute throttle capillary 41 is represented by a structural state in which both ends are thick and the middle is thin, and the thickness gradually transits, and the maximum inside diameter of the mute throttle capillary 41 is 3.0mm, and the minimum inside diameter is 1.0 mm. Meanwhile, the inner diameter of the pipeline connecting the mute throttle capillary 41 with other structures is the conventional size in the field, namely 4.5 mm.
Further, in the present embodiment, the two one-way shutoff solenoid valves 42 are a one-way shutoff solenoid valve a 421 and a one-way shutoff solenoid valve B422, respectively. The one-way cut-off solenoid valve a 421 is connected in series with the one-way cut-off solenoid valve B422, and meanwhile, the one-way cut-off direction of the one-way cut-off solenoid valve a 421 is upward (see an arrow direction "↓" inside the one-way cut-off solenoid valve a 421 in fig. 1 and 2) and the one-way cut-off direction of the one-way cut-off solenoid valve B422 is downward (see an arrow direction "↓" inside the one-way cut-off solenoid valve B422 in fig. 1 and 2).
Further, in the present embodiment, the one-way cutoff solenoid valve a 421 and the one-way cutoff solenoid valve B422 have two states of "power on" and "power off", respectively; it should be noted that, when the one-way shutoff solenoid valve 42 is in the "power on" state, the one-way shutoff solenoid valve 42 can only unidirectionally shut off the flow of the refrigerant in its "one-way shutoff direction" (for the refrigerant in the reverse direction, the flow of the refrigerant cannot be blocked); when the one-way cut-off solenoid valve 42 is in the power-off state, the inside of the one-way cut-off solenoid valve 42 is completely opened, and the internal refrigerant flows smoothly.
Specifically, when the one-way cut-off solenoid valve a 421 is in an "on" state and the one-way cut-off solenoid valve B422 is in a "off" state, the refrigerant flowing through the capillary tube-one-way cut-off solenoid valve pipeline assembly 4 flows upward through the branch where the mute throttle capillary tube 41 is located; when the one-way cut-off solenoid valve B422 is in the "power-on" state and the one-way cut-off solenoid valve a 421 is in the "power-off" state, the refrigerant flowing through the capillary tube-one-way cut-off solenoid valve pipeline assembly 4 flows downward through the branch where the mute throttle capillary tube 41 is located.
In the present embodiment, in order to facilitate the realization and operation of the respective functions, a two-way shutoff valve 6 is provided between the outdoor heat exchanger 2 and the indoor upper heat exchanger 3, a four-way valve 7 is provided between the outdoor heat exchanger 2 and the compressor 1, and a three-way shutoff valve 8 is provided between the compressor 1 and the indoor lower heat exchanger 3. During the dehumidification operation, the electronic expansion valve 5 of the exterior heat exchanger 2 is fully opened, and the refrigerant therein is not throttled.
Meanwhile, in the present embodiment, in order to facilitate the indoor heat exchange process, the present embodiment apparatus is further provided with a cross flow fan 9. The cross flow fan 9 is provided at the indoor heat exchanger 3 to promote heat exchange thereat.
In addition, in the present embodiment, in order to facilitate outflow of condensed water generated during the dehumidification process, the apparatus of the present embodiment is further provided with an indoor unit drain pipe (not shown); one end of the indoor unit drain pipe is connected with the indoor heat exchanger 3, and the other end is connected with the outdoor.
The air conditioner of the embodiment has two dehumidification modes: (1) a dehumidification mode (thermal dehumidification) in the heating operation of the air conditioning system; (2) and (4) a dehumidification mode (no temperature reduction and dehumidification) under the refrigeration operation of the air conditioning system.
Referring to fig. 1 (an arrow "→" on a pipe in fig. 1 indicates a refrigerant flow direction), when the heating operation dehumidification (thermal dehumidification) is performed: the high-temperature and high-pressure gas refrigerant discharged by the compressor 1 enters the indoor lower heat exchanger 32 to be condensed into liquid refrigerant, and releases heat to heat indoor air; then, as the one-way cut-off electromagnetic valve A421 is adjusted to be in the power-on state and the one-way cut-off electromagnetic valve B422 is adjusted to be in the power-off state, the liquid refrigerant is transported through the branch where the mute throttling capillary tube 41 is located, and the mute throttling is performed on the refrigerant in the mute throttling capillary tube 41; then, the throttled low-pressure refrigerant flows into the indoor upper heat exchanger 31 to be evaporated and absorb heat, so that a certain indoor air temperature is reduced to realize a dehumidification function.
Referring to fig. 2 (an arrow "→" on a pipe in fig. 2 indicates a flow direction of the refrigerant), when the dehumidification mode (cooling-free dehumidification) is performed in the cooling operation: the high-temperature and high-pressure gas refrigerant discharged by the compressor 1 enters the outdoor heat exchanger 2 to be condensed into liquid refrigerant; then, as the electronic expansion valve 5 of the outdoor heat exchanger 2 is completely opened without throttling, the liquid refrigerant enters the indoor upper heat exchanger 31 for secondary condensation and heat release; then, as the one-way cut-off solenoid valve B422 is adjusted to be in the power-on state and the one-way cut-off solenoid valve A421 is adjusted to be in the power-off state, the liquid refrigerant is transported through the branch where the mute throttling capillary tube 41 is located, and the mute throttling is performed on the refrigerant in the liquid refrigerant through the mute throttling capillary tube 41; finally, the throttled low-pressure refrigerant flows into the lower indoor heat exchanger 32 to evaporate and absorb heat, so that a certain indoor air temperature is reduced to realize a dehumidification function.
The beneficial effects of the embodiment are as follows:
(1) the inner diameter of a pipeline of the existing refrigerating and heating bidirectional dehumidifying air conditioner is generally 4.5mm, the inner diameter of the pipeline inside a dehumidifying valve is 0.5mm, and corresponding noise is caused based on the inner diameter difference; in the embodiment, the mute throttling capillary tube 41 is adopted to replace a dehumidification valve, the inner diameter of the capillary tube is designed to be in a form of gradually thinning (1.0mm) from thick (3.0mm) to thick (3.0mm), and the design can enable the flow section of the refrigerant in the capillary tube to slowly and gradually change (transition from 4.5mm to 3.0mm to 1.0mm to 3.0mm), so that the airflow sound of the flowing refrigerant is effectively avoided;
(2) the indoor heat exchanger 3 is divided into two parts of heat exchangers which are connected in series, and the capillary tube-one-way stop solenoid valve pipeline assembly 4 is used for carrying out low-noise non-cooling dehumidification during the refrigerating operation and low-noise heat dehumidification during the heating operation of the air-conditioning refrigerating system (the temperature is not reduced during the dehumidification process, the temperature can be raised for a room, and meanwhile, the abnormal noise of the indoor unit is eliminated).
In view of the above, this embodiment not only can be fine solve the problem that ordinary split air conditioner dehumidification is not enough and dehumidification in-process indoor side room temperature descends, can also reduce the noise that indoor set dehumidification in-process produced, bring fabulous experience for the user.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A low-noise refrigerating and heating bidirectional dehumidifying air conditioner is characterized by comprising a compressor, an outdoor heat exchanger and an indoor heat exchanger; the indoor heat exchanger comprises an indoor upper heat exchanger and an indoor lower heat exchanger, and the indoor upper heat exchanger and the indoor lower heat exchanger are connected in series through a capillary tube-one-way stop solenoid valve pipeline assembly; the outdoor heat exchanger is an outdoor heat exchanger with an electronic expansion valve, one end of the outdoor heat exchanger is connected with the indoor upper heat exchanger, the other end of the outdoor heat exchanger is connected with the compressor, and the other end of the compressor is connected with the indoor lower heat exchanger; the capillary-one-way stop solenoid valve pipeline assembly is a parallel pipeline assembly consisting of a mute throttle capillary and two one-way stop solenoid valves, the two one-way stop solenoid valves are connected in series, and the one-way stop directions are opposite.
2. The low-noise refrigerating and heating bidirectional dehumidifying air conditioner of claim 1 wherein the inner diameter of the mute throttle capillary tube is in a structural state of being thick at two ends and thin in the middle and gradually transiting between the thick and thin.
3. The low-noise refrigerating and heating bidirectional dehumidifying air conditioner of claim 2, wherein the maximum inner diameter of the mute throttle capillary tube is 3.0mm, and the minimum inner diameter is 1.0 mm.
4. The low-noise refrigerating and heating bidirectional dehumidification air conditioner as claimed in claim 1, wherein the one-way cutoff solenoid valve has two states of "power on" and "power off"; when the one-way cut-off solenoid valve is in an electrified state, the one-way cut-off solenoid valve cuts off the flow of the refrigerant in one way; when the one-way cut-off solenoid valve is in a power-off state, the inside of the one-way cut-off solenoid valve is completely opened to form a refrigerant free flow channel.
5. The low-noise refrigerating and heating bidirectional dehumidification air conditioner according to claim 4, wherein the two unidirectional cut-off solenoid valves in the capillary-unidirectional cut-off solenoid valve pipeline assembly are a unidirectional cut-off solenoid valve A and a unidirectional cut-off solenoid valve B, respectively; the one-way cut-off solenoid valve A and the one-way cut-off solenoid valve B are connected in series, and meanwhile, the one-way cut-off direction of the one-way cut-off solenoid valve A is upward, and the one-way cut-off direction of the one-way cut-off solenoid valve B is downward.
6. The low-noise refrigerating and heating bidirectional dehumidification air conditioner according to claim 5, wherein when the unidirectional cut-off solenoid valve A is in an "on" state and the unidirectional cut-off solenoid valve B is in a "off" state, the refrigerant flowing through the capillary-unidirectional cut-off solenoid valve pipeline assembly flows upwards through a branch where a mute throttle capillary is located; when the one-way cut-off solenoid valve B is in an 'electrified' state and the one-way cut-off solenoid valve A is in a 'power-off' state, the refrigerant flowing through the capillary tube-one-way cut-off solenoid valve pipeline assembly flows downwards through the branch where the mute throttle capillary tube is located.
7. The low-noise refrigerating and heating bidirectional dehumidification air conditioner according to claim 1, wherein an inner diameter of a pipeline connecting the mute throttle capillary tube and other structures in the capillary tube-unidirectional cut-off solenoid valve pipeline assembly is 4.5 mm.
8. The low-noise refrigerating and heating bidirectional dehumidifying air conditioner of claim 1, wherein a two-way stop valve is disposed between the outdoor heat exchanger and the indoor upper heat exchanger, a four-way valve is disposed between the outdoor heat exchanger and the compressor, and a three-way stop valve is disposed between the compressor and the indoor lower heat exchanger.
9. The low-noise refrigerating and heating bidirectional dehumidifying air conditioner as claimed in any one of claims 1 to 8, further comprising a cross-flow fan; the cross flow fan is disposed at the indoor heat exchanger.
10. The low-noise refrigerating and heating bidirectional dehumidifying air conditioner according to any one of claims 1 to 8, further comprising an indoor unit drain pipe; one end of the indoor unit drain pipe is connected with the indoor heat exchanger, and the other end of the indoor unit drain pipe is connected with the outside.
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| CN202110960072.0A CN113587213A (en) | 2021-08-20 | 2021-08-20 | Low-noise refrigerating and heating bidirectional dehumidifying air conditioner |
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| CN202110960072.0A CN113587213A (en) | 2021-08-20 | 2021-08-20 | Low-noise refrigerating and heating bidirectional dehumidifying air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165844A (en) * | 2021-11-26 | 2022-03-11 | 青岛海信日立空调系统有限公司 | Air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165844A (en) * | 2021-11-26 | 2022-03-11 | 青岛海信日立空调系统有限公司 | Air conditioner |
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