CN215490042U - Air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner, which comprises a throttle valve and a heat exchanger, wherein a silencing device is connected between the throttle valve and the heat exchanger and comprises a separation shell and a capillary tube, a separation cavity is formed in the separation shell, and the separation cavity is divided into a first separation cavity and a second separation cavity by a dividing part; a plurality of capillaries are formed on the separating part and are used for communicating the first separating cavity with the second separating cavity; the first separation cavity is connected with an input pipeline, the second separation cavity is connected with a first output pipeline and a second output pipeline, a refrigerant sequentially enters the first separation cavity and the second separation cavity through the input pipeline, gas in the refrigerant is separated in the process and is output through the first output pipeline, after the refrigerant is processed by the silencer, secondary gas-liquid separation operation is carried out on the refrigerant, the refrigerant passes through a capillary tube in the gas-liquid separation process, the pressure difference can be effectively reduced, and the noise generated when intermittent foaming in the refrigerant passes through a valve port of the throttle valve is reduced.

Description

Air conditioner

Technical Field

The utility model belongs to the technical field of air conditioning equipment, and particularly relates to an air conditioner.

Background

At present, in air conditioning equipment, the operation state of a refrigerant before flowing through a throttle valve is mostly in a gas-liquid two-phase state, when the dryness of the refrigerant is small, intermittent bubbles 2 flow into a throttle hole 3 of the throttle valve through an input pipe 1, as shown in fig. 1, when the pressure difference between the front valve and the rear valve is large, the flow velocity of the refrigerant in the throttle hole is high, and thus intermittent 'split to split' abnormal noise is generated.

In addition, the pressure difference between the front and the back of the valve is large, even if the front of the valve is in a pure liquid state, the noise after throttling is too large, so that the external machine operates and transmits great transmission noise to the indoor.

The patent document with the application number of CN201720012564.6 discloses a noise elimination device for eliminating two-phase flow noise of a fixed-frequency air conditioner, which comprises a condenser, a throttle valve and an evaporator, wherein a silencing passage is arranged in parallel connection with the throttle valve and is a bypass passage crossing the throttle valve, one end of the silencing passage is arranged at one end of the throttle valve, the other end of the silencing passage is arranged at the other end of the throttle valve, and a controlled valve capable of opening and closing the silencing passage is arranged on the silencing passage.

Patent document No. 201921466512.1 discloses a noise reduction air conditioner, which comprises an evaporator, a condenser, an electronic expansion valve and a capillary tube, wherein a first end of the capillary tube is connected with the evaporator, and a second end of the capillary tube is connected with an outlet end of the electronic expansion valve; the inlet end of the electronic expansion valve is connected with the condenser; the electromagnetic valve is connected with the capillary tube in parallel through a parallel branch, and the noise reduction air conditioner mainly utilizes an expansion type silencer as a silencing device for silencing, so that the assembly cost is high, and the adaptability is low.

Disclosure of Invention

The utility model aims to provide an air conditioner to solve the problems of noise and the like generated when two-phase refrigerants flow through the position of a valve port of a throttle valve in the operation process of the air conditioner in the prior art.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

the utility model provides an air conditioner, which comprises a throttle valve and a heat exchanger, wherein a silencing device is connected between the throttle valve and the heat exchanger, and the silencing device comprises:

the separation device comprises a separation shell, a first separation cavity and a second separation cavity, wherein a separation cavity is formed in the separation shell, a partition part is formed in the separation cavity, and the separation cavity is divided into the first separation cavity and the second separation cavity through the partition part;

a plurality of capillaries formed on the partition portion in a dispersed manner, and communicating the first separation chamber and the second separation chamber;

the first separation cavity is connected with an input pipeline, and the second separation cavity is connected with a first output pipeline and a second output pipeline.

In some embodiments of the present application, the first output line is located above the second output line, which is located at the bottom of the separation housing.

In some embodiments of the present application, the partition is vertically disposed in the separation chamber, and the installation direction of the capillary is horizontal.

In some embodiments of the present application, the separation housing is cylindrical, and the diameter of the separation chamber ranges from 20mm to 200 mm.

In some embodiments of the present application, a plurality of the capillaries are dispersedly formed above a center line of the partition, and mounting positions of the plurality of the capillaries are on different horizontal planes.

In some embodiments of the present application, a plurality of the capillaries are dispersedly formed above a center line of the partition, and the installation positions of the plurality of the capillaries are on different horizontal planes.

In some embodiments of the present application, the capillary tube has a length in the range of 10mm to 200 mm.

In some embodiments of the present application, the capillary has an inner diameter of 0.5mm to 3 mm.

In some embodiments of the present application, the length of the input pipeline extending into the separation chamber ranges from 5mm to 50 mm.

In some embodiments of the present application, the input line is in communication with the heat exchanger and the second output line is in communication with the throttle valve.

Compared with the prior art, the utility model has the advantages and positive effects that:

the air conditioner related to the application firstly enters a first separation cavity through an input pipeline before a refrigerant enters a throttling valve from a heat exchanger, two-phase refrigerants are firstly separated in the first separation cavity, a gaseous refrigerant enters a second separation cavity from a capillary tube and then is output through a first output pipeline; liquid or gas-phase refrigerant with gas phase is finally conveyed into the second separation cavity from the lower layer capillary tube along with the rise of the liquid level in the first separation cavity, gas-liquid separation is carried out for the second time in the process of entering the second separation cavity, the gas-phase refrigerant after secondary separation is output from the first output pipe, and the separated liquid-phase refrigerant is output into the throttle valve from the second output pipe.

After being processed by the silencer, the refrigerant is subjected to secondary gas-liquid separation, and the gas-liquid separation process passes through the capillary tube, so that the pressure difference can be effectively reduced, and the noise generated when intermittent bubbles in the refrigerant pass through the valve port of the throttle valve is reduced.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram illustrating noise generation during transportation of two-phase refrigerant in the prior art;

FIG. 2 is a schematic view showing a position where a muffler assembly of an embodiment of an air conditioner according to the present invention is installed;

fig. 3 is a schematic structural diagram of the muffler device according to an embodiment of the present invention;

FIG. 4 is a schematic view of the capillary tube distribution in the muffling apparatus;

FIG. 5 is a cross-sectional view of the muffler assembly;

FIG. 6 is a schematic view of the refrigerant flowing through the muffler device;

FIG. 7 is a cross-sectional view A-A of FIG. 6;

reference numbers in fig. 1:

1. an input tube; 2. intermittent bubbling; 3. an orifice;

reference numbers in fig. 2:

100. a heat exchanger; 200. a muffler device; 300. a throttle valve;

reference numerals in fig. 3-7:

10. separating the shell; 11. a first separation chamber; 12. a second separation chamber;

20. an input pipeline;

30. a second output line;

40. a first output line;

50. a capillary tube;

60. a partition portion.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve (or a throttle valve), and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve (or throttle valve) expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve (or throttle valve) and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

An outdoor unit (outdoor unit) of an air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, an indoor unit (indoor unit) of the air conditioner includes an indoor heat exchanger, and an expansion valve (or throttle valve) may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

When the refrigerant flows through the expansion valve, due to the change of the pressure of the refrigerant and foaming generated in the refrigerant, intermittent split-split abnormal noise is generated when the refrigerant passes through the expansion valve, and in order to solve the problem, the air conditioner is provided with a silencer in the middle of the refrigerant flowing out of the heat exchanger 100 to the throttle valve 300, and the silencer is used for reducing the noise generated in the flowing process of the refrigerant.

The muffler device 200 includes a separation housing 10 and a capillary 50, a separation chamber is formed in the separation housing 10, a partition portion 60 is formed in the separation chamber, and the separation chamber is partitioned into a first separation chamber 11 and a second separation chamber 12 by the partition portion 60.

A plurality of capillaries 50 are dispersedly formed on the partition portion 60 between the first separation chamber 11 and the second separation chamber 12, the length range of the capillaries 50 is 10 mm-200 mm, and the inner diameter of the capillaries 50 is 0.5 mm-3 mm.

The capillary tube 50 is used to communicate the first separation chamber 11 with the second separation chamber 12, and to convey the liquid refrigerant in the first separation chamber 11 and the gaseous refrigerant partially separated from the liquid refrigerant into the second separation chamber 12.

Specifically, the separation housing 10 is cylindrical so as to ensure smooth circulation of the refrigerant and reduce resistance formed by the inner wall bevel of the separation cavity, and in order to adapt to the size of the existing air conditioner component, the diameter range of the separation cavity is preferably 20mm to 200 mm.

The first separation cavity 11 is connected with an input pipeline 20, the front end of the input pipeline 20 is communicated with the heat exchanger 100 and used for conveying a refrigerant output from the heat exchanger 100 into the separation shell 10, the end part of the input pipeline 20 extends into the separation cavity by a certain length, preferably, the length range of the input pipeline 20 extending into the separation cavity is 5 mm-50 mm, and the installation position of the input pipeline 20 on the separation shell 10 is higher than the capillary tube 50 at the lowest layer position.

The second separation chamber 12 is connected to a first output pipeline 40 and a second output pipeline 30, the first output pipeline 40 is used for conveying a gaseous refrigerant separated from a two-phase refrigerant, and the second output pipeline 30 is used for conveying a separated liquid refrigerant.

The first output line 40 is located above the second output line 30, and the second output line 30 is located at the bottom of the separation case 10, communicating with the throttle valve 300.

Before the refrigerant enters the throttle valve 300, the refrigerant is in a gas-liquid two-phase state, bubbles exist in the refrigerant, the two-phase refrigerant enters the first separation cavity 11 from the input pipeline 20, in the input process, due to the height difference and the like, the bubbles in the two-phase refrigerant are partially separated from the liquid refrigerant, and the separated gaseous refrigerant is conveyed into the second separation cavity 12 through the capillary tube 50 and finally output from the first output pipeline 40.

As the liquid refrigerant input from the input pipeline 20 increases, the liquid level of the refrigerant gradually rises, the liquid refrigerant is also output from the lower layer capillary tube 50 to the second separation chamber 12, in the process from the capillary tube 50 to the second separation chamber 12, the bubbling in the liquid refrigerant carries out secondary separation due to the height difference and the like, the gaseous refrigerant is separated from the liquid refrigerant again, and the liquid refrigerant after the secondary separation is output from the first output pipeline 40.

The liquid refrigerant in the second separation chamber 12 is delivered to the throttle valve 300 through the second output pipeline 30 at the bottom of the separation housing 10, the muffler device 200 can separate gas from two-phase refrigerant output from the heat exchanger 100, bubble content in the refrigerant is reduced, pressure of the refrigerant flowing into the throttle valve 300 and flowing out of the heat exchanger 100 is released, and noise of the refrigerant when entering the throttle valve 300 can be effectively reduced.

Preferably, the partition portion 60 is vertically disposed in the separation chamber, the capillary tubes 50 are horizontally installed, the capillary tubes 50 on the partition portion 60 are dispersedly formed above the center line thereof, the plurality of capillary tubes 50 are located at different heights, the capillary tube 50 located at a higher position is used for passing a gaseous refrigerant separated from a liquid refrigerant, and the capillary tube 50 located at a lower position is used for transferring the liquid refrigerant in the first separation chamber 11 to the second separation chamber 12.

The gaseous refrigerant is finally output from the first output pipeline 40, and the first output pipeline 40 is externally connected with an indoor air pipe outlet to output the gaseous refrigerant.

The silencer 200 is provided in the air conditioner, so that the refrigerant enters the first separation chamber 11 through the input pipeline 20 before entering the throttle valve 300 from the heat exchanger 100, two-phase refrigerant is separated in the first separation chamber 11 for the first time, and gaseous refrigerant enters the second separation chamber 12 from the capillary tube 50 and is then output through the first output pipeline 40.

The separated liquid refrigerant is finally conveyed into the second separation cavity 12 from the lower layer capillary tube 50 along with the rise of the liquid level in the first separation cavity 11, the liquid refrigerant is subjected to second gas-liquid separation in the process of entering the second separation cavity 12, the gas refrigerant subjected to second separation is output from the first output tube, the separated liquid refrigerant is output into the throttle valve 300 from the second output tube, and after being processed by the silencer, the refrigerant is subjected to second gas-liquid separation operation, so that the noise generated when intermittent bubbles in the refrigerant pass through the valve port of the throttle valve 300 is effectively reduced.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention shall be subject to the claims.

Claims (10)

1. The utility model provides an air conditioner, includes choke valve and heat exchanger, its characterized in that, the choke valve and be connected with noise eliminator between the heat exchanger, noise eliminator includes:

the separation device comprises a separation shell, a first separation cavity and a second separation cavity, wherein a separation cavity is formed in the separation shell, a partition part is formed in the separation cavity, and the separation cavity is divided into the first separation cavity and the second separation cavity through the partition part;

a plurality of capillaries formed on the partition portion in a dispersed manner, and communicating the first separation chamber and the second separation chamber;

the first separation cavity is connected with an input pipeline, and the second separation cavity is connected with a first output pipeline and a second output pipeline.

2. The air conditioner according to claim 1,

the first output pipeline is located above the second output pipeline, and the second output pipeline is located at the bottom of the separation shell.

3. The air conditioner according to claim 1,

the separating part is vertically arranged in the separating cavity, and the installation direction of the capillary is horizontal.

4. The air conditioner according to claim 1,

the separation shell is cylindrical, and the diameter range of the separation cavity is 20 mm-200 mm.

5. The air conditioner according to claim 1,

the plurality of capillaries are formed separately above the center line of the partition, and the mounting positions of the plurality of capillaries are on different horizontal planes.

6. The air conditioner according to claim 5,

the height position of the input pipeline is higher than the lowest position of the plurality of capillaries.

7. The air conditioner according to claim 1,

the length range of the capillary tube is 10 mm-200 mm.

8. The air conditioner according to claim 1,

the inner diameter of the capillary tube is 0.5 mm-3 mm.

9. The air conditioner according to claim 1,

the length range that the input pipeline stretches into in the separation chamber is 5mm ~50 mm.

10. The air conditioner according to claim 1,

the input pipeline is communicated with the heat exchanger, and the second output pipeline is communicated with the throttling valve.

Images