CN218884331U - Air conditioner - Google Patents

Abstract

The application provides an air conditioner relates to the air conditioning technology field for it is more to solve the solder joint in the air conditioner, leads to the refrigerant to reveal the higher technical problem of risk. The air conditioner includes a compressor, a condenser, an evaporator, an economizer, and a distributor. The evaporator comprises a first shell provided with a first accommodating cavity, an air outlet and a liquid inlet, wherein the air outlet and the liquid inlet are communicated with the first accommodating cavity; the economizer is arranged in the first accommodation chamber, and the economizer includes: the second housing is provided with a second accommodating cavity, the second housing is also provided with a second air supplementing port communicated with the second accommodating cavity, the second accommodating cavity is communicated with one end of the liquid inlet, the other end of the liquid inlet is communicated with the outlet, and the second air supplementing port is also communicated with the first air supplementing port so as to enable the gaseous refrigerant in the economizer to flow back to the compressor; the second shell is provided with a liquid outlet communicated with the distributor, and the distributor is arranged in the first accommodating cavity and used for distributing liquid refrigerant flowing out of the economizer to the first accommodating cavity.

Description

Air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to an air conditioner.

Background

In the field of traditional large central air conditioners, such as centrifugal chiller and screw chiller products. In order to improve the performance of the water chilling unit, a refrigeration system of an external flash type economizer or a plate type economizer plus a flooded evaporator is generally adopted.

The refrigerating system of the water chilling unit mainly comprises an evaporator, a condenser, a compressor, a throttling device, an economizer, an electric control system and the like. The large-scale water chilling unit usually adopts a flash tank as an economizer, and has the functions of leading gas with intermediate pressure generated by primary throttling flash to a compressor medium-pressure air supplement port and stabilizing liquid refrigeration medium in an expansion refrigeration mode so as to improve the refrigeration cycle capacity and efficiency.

However, when the chiller refrigeration system is configured with the economizer, the economizer needs to be respectively communicated with the evaporator, the condenser and the compressor through pipelines, so that the number of welding points of the pipeline of the chiller refrigeration system is large, and the leakage risk is high.

SUMMERY OF THE UTILITY MODEL

The application provides an air conditioner for it is more to solve the solder joint in the air conditioner, leads to the refrigerant to reveal the higher technical problem of risk.

The application provides an air conditioner, includes:

a compressor, the compressor comprising: the air suction port, the air exhaust port and the first air supplement port;

a condenser, the condenser comprising: an outlet and an inlet, wherein the inlet is in communication with the exhaust port;

an evaporator, comprising: the first shell is internally provided with a first accommodating cavity; the first shell is provided with an air outlet and a liquid inlet which are communicated with the first accommodating cavity, and the air outlet is communicated with the air suction port so as to enable the gaseous refrigerant in the evaporator to flow back to the compressor;

an economizer disposed in the first receiving chamber, the economizer including: the second shell is internally provided with a second accommodating cavity; the second shell is also provided with a second air supplement port communicated with the second accommodating cavity, the second accommodating cavity is communicated with one end of the liquid inlet, the other end of the liquid inlet is communicated with the outlet so that the liquid refrigerant in the condenser flows to the economizer, and the second air supplement port penetrates through the first shell through a connecting pipeline and is communicated with the first air supplement port so that the gaseous refrigerant in the economizer flows back to the compressor; a liquid outlet is also formed in the second shell;

the distributor is arranged in the first accommodating cavity and communicated with the liquid outlet, and is used for distributing liquid refrigerants flowing out of the economizer to the first accommodating cavity so as to enable the liquid refrigerants to be evaporated into gaseous refrigerants through the evaporator.

The air conditioner in this application includes compressor, condenser, evaporimeter, economic ware and distributor, and wherein, this compressor includes: the air suction port, the air exhaust port and the first air supplement port; the condenser includes: an outlet and an inlet. Wherein the inlet is in communication with the exhaust port. The evaporator includes: the first shell is internally provided with a first accommodating cavity; the first shell is provided with an air outlet and an air inlet which are communicated with the first accommodating cavity, and the air outlet is communicated with the air suction port so as to enable the gaseous refrigerant in the evaporator to flow back to the compressor. An economizer is disposed in the first receiving chamber, the economizer including: the second housing is internally provided with a second accommodating cavity, the second housing is also provided with a second air supplementing port communicated with the second accommodating cavity, the second accommodating cavity is communicated with one end of the liquid inlet, the other end of the liquid inlet is communicated with the outlet so as to enable liquid-state refrigerant in the condenser to flow to the economizer, and the second air supplementing port penetrates through the first housing through a connecting pipeline and is communicated with the first air supplementing port so as to enable gas-state refrigerant in the economizer to flow back to the compressor; a liquid outlet is also formed in the second shell; the distributor is arranged in the first accommodating cavity, is communicated with the liquid outlet and is used for distributing liquid refrigerants flowing out of the economizer to the first accommodating cavity so as to enable the liquid refrigerants to be evaporated into gaseous refrigerants through the evaporator.

Therefore, the economizer is arranged in the first accommodating cavity of the evaporator, so that the inner space of the evaporator can be fully utilized, and the gas supplement amount of the economizer is increased. In addition, because the economizer is arranged in the evaporator, the economizer is not required to be additionally communicated with the compressor and the condenser, and the economizer is only required to be communicated with the compressor through the second air supplementing port and is communicated with the outlet of the condenser through the liquid inlet. The welding spots of the air conditioner pipeline are greatly reduced, so that the assembly efficiency of the air conditioner unit is improved, and the refrigerant leakage possibility is reduced.

In some embodiments of the present application, the economizer is of unitary construction with the evaporator.

In some embodiments of the present application, the cross-sectional area in a direction perpendicular to the direction of extension of the liquid inlet is smaller than the cross-sectional area in a direction perpendicular to the direction of extension of the second gas supplementing port.

In some embodiments of the present application, the cross-section along the direction perpendicular to the liquid inlet is a first circle, and the cross-section along the direction perpendicular to the second air supplement port is a second circle, and the diameter of the second circle is greater than that of the first circle.

In some embodiments of the present application, the evaporator is a falling film evaporator.

In some embodiments of the present application, the economizer is a flash-type economizer.

In some embodiments of the present application, the first casing of the evaporator is cylindrical, the liquid inlet, the gas outlet and the second air supplement port are arranged along the axial direction of the first casing at intervals, and the gas outlet is located between the liquid inlet and the second air supplement port.

In some embodiments of the present application, the liquid inlet, the gas outlet and the second gas supplementing opening are all located in a first direction of the economizer, the distributor is located in a second direction of the economizer, and the second direction is the opposite direction of the first direction.

In some embodiments of the present application, the economizer is located in the receiving chamber on a side thereof adjacent the inlet port.

In some embodiments of the present application, a long side direction of the second housing is parallel to an axial direction of the first housing, and a short side direction of the second housing is parallel to the liquid inlet, the distributor, and the economizer.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

Fig. 1 is a schematic structural diagram of a related art air conditioner according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a second schematic structural diagram of an air conditioner according to an embodiment of the present disclosure;

FIG. 4 is a front view of an evaporator according to an embodiment of the present disclosure;

FIG. 5 is a left side view of an evaporator provided in accordance with an embodiment of the present application;

fig. 6 is a third schematic structural diagram of an air conditioner according to an embodiment of the present disclosure;

fig. 7 is a second front view of an evaporator according to an embodiment of the present disclosure;

fig. 8 is a schematic perspective view of an evaporator according to an embodiment of the present application;

fig. 9 is a third front view of an evaporator according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of a second housing according to an embodiment of the present application.

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.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

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 the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. 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 addition, when a pipeline is described, the terms "connected" and "connected" are used in this application to have a meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

For the sake of understanding, the basic concepts of some terms or techniques related to the embodiments of the present invention will be briefly described and explained.

A refrigeration system: the compressor of the air conditioner sucks the low-temperature and low-pressure gaseous refrigerant evaporated by the evaporator into a compressor cavity, compresses the low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant, and enters the condenser. The high-temperature high-pressure gas refrigerant is condensed into a high-temperature high-pressure liquid refrigerant in the condenser, then is throttled by a throttling element such as a capillary tube, is changed into a low-temperature low-pressure liquid refrigerant, enters the evaporator for evaporation, and finally returns to the compressor, so that the whole refrigeration cycle is completed.

Refrigerant (or called refrigerant): a substance which is easily changed into gas by heat absorption and liquid by heat release. In the air conditioner, heat energy is transferred through evaporation and condensation of a refrigerant, and a refrigeration effect is generated.

Degree of superheat: the difference between the actual temperature of the refrigerant at the outlet of the evaporator and the corresponding saturation temperature of the refrigerant at the pressure is referred to, that is, the difference between the outlet temperature of the evaporator and the evaporation temperature.

A throttle valve: the throttle valve controls the fluid flow by changing the throttle section or the throttle length, and can realize large flow regulation range and smooth pressure difference change.

Fig. 1 is a schematic structural diagram illustrating a related art air conditioner according to an embodiment of the present application, and as shown in fig. 1, the air conditioner includes: compressor 01, condenser 02, economizer 03, evaporator 04, primary throttle 05, and secondary throttle 06.

The economizer 03 is used for introducing gas at an intermediate pressure generated by throttling and flashing through the first-stage throttle valve 05 to an intermediate-pressure air supplement port of the compressor 01, and stabilizing a liquid refrigerant in an expansion refrigeration mode to improve the capacity and efficiency of a refrigeration cycle.

However, as shown in fig. 1, when the economizer 03 is disposed in the air conditioner, the economizer 03 needs to be communicated with the condenser 02 (i.e., communicated with the condenser 02 through the first-stage throttle valve 05), the evaporator 04 (i.e., communicated with the evaporator 04 through the second-stage throttle valve 06), and the compressor 01 through a pipeline, which results in many welding spots of the pipeline of the air conditioner and a high refrigerant leakage risk.

The application provides an air conditioner for it is more to solve the solder joint in the air conditioner, leads to the refrigerant to reveal the higher technical problem of risk.

Fig. 2 shows a schematic structural diagram of an air conditioner provided in an embodiment of the present application, and as shown in fig. 2, the air conditioner 100 may include: a compressor 10, a condenser 20, an evaporator 30, an economizer 40, and a distributor 50.

It will be appreciated that the compressor 10 is a driven fluid machine that raises low pressure gas to high pressure gas, and is the heart of the refrigeration system of the air conditioner 100. As shown in fig. 3, the compressor 10 may include: an intake port 11, an exhaust port 12, and a first air supplement port 13. The low-temperature and low-pressure refrigerant gas is sucked from the suction port 11 of the compressor 10, and after the pneumatic component is driven by the operation of the motor to compress the refrigerant gas, the high-temperature and high-pressure gaseous refrigerant is discharged to the exhaust port 12 of the compressor, so as to provide power for the refrigeration cycle of the air conditioner 100.

In one possible implementation, the compressor 10 may be a speed-type compressor. In the speed type compressor, the increase of gas pressure is converted from the speed of gas, i.e. firstly, the sucked gas obtains a certain high speed, then the sucked gas is slowly reduced, the kinetic energy of the sucked gas is converted into the pressure energy of the gas, and the gas is discharged after the pressure is increased. It can be seen that the suction and discharge processes of the speed type compressor can be continuously performed, and the flow thereof is stable.

The speed compressor may be a centrifugal compressor or an axial compressor, which is not limited in the present application.

The compressor 10 of the embodiment of the present application may be preferably a centrifugal compressor, which has the characteristics of large flow rate, high rotation speed, and the like, so that the refrigerating capacity of the air conditioner 100 can be ensured.

In another possible implementation, the compressor 10 may also be a positive displacement compressor. In a positive displacement compressor, a volume of gas is first drawn into a cylinder where it is then forced to contract and the pressure rises. When a certain pressure is reached, the gas is forced out of the cylinder. Therefore, the suction and discharge processes of the displacement compressor are intermittently performed, and the flow is not continuously stable.

The condenser 20, which is a component of the refrigeration system of the air conditioner 100, is one type of heat exchanger, and the condenser 20 can convert gas or vapor into liquid to transfer heat from the condenser 20 to the air (or other coolant) in the vicinity of the condenser 20 in a rapid manner. The condenser 20 operation is an exothermic process. As also shown in fig. 3, the condenser 20 may include: and an outlet 21 and an inlet 22, wherein the inlet 22 is communicated with the discharge port 12, so that the gaseous refrigerant discharged from the discharge port 12 of the compressor 10 flows into the condenser 20, and is converted into a liquid refrigerant after heat exchange in the condenser 20.

The evaporator 30 is an important component of a refrigeration system of an air conditioner, and the low-temperature condensed liquid passes through the evaporator 30 to exchange heat with the outside air (or other secondary refrigerant) to absorb heat through gasification, thereby achieving the refrigeration effect. As also shown in fig. 3, the evaporator 30 may include: the first housing 31 has a first accommodating cavity 310 formed in the first housing 31, and the first housing 31 has an air outlet 311 and a liquid inlet 312 communicated with the first accommodating cavity 310. The outlet 311 is connected to the suction port 11 to allow the gaseous refrigerant in the evaporator 30 to flow back to the compressor 10.

In one possible implementation, the evaporator 30 may be a falling film evaporator 30. After entering from the top of the falling-film evaporator 30, the liquid refrigerant flows down along the inner wall of the tube in a film shape under the action of gravity and is evaporated and concentrated. Thus, the falling film evaporator 30 can effectively reduce the refrigerant charge amount of the refrigeration system and reduce the cost of the air conditioner 100.

The economizer, i.e., a heat exchanger, subcools another portion of the refrigerant by absorbing heat through throttling evaporation of the refrigerant itself. The economizer is arranged in the air conditioner 100, so that the superheat degree of return air of the air conditioner 100 can be improved, and the compression efficiency is improved. In addition, the return air pressure of the air conditioner 100 can be increased, and liquid impact can be effectively prevented. Meanwhile, the oil return amount of the compressor 10 can be increased, and the service life of the compressor 10 is guaranteed.

Fig. 4 shows a front view of an evaporator provided in an embodiment of the present application, and fig. 5 shows a left side view of an evaporator provided in an embodiment of the present application, and as shown in fig. 4 and 5, the economizer 40 is disposed in the first receiving chamber 310, and the economizer 40 may include: the second housing 41 has a second accommodating cavity 410 formed therein, the second housing 41 may further have a second air supplement port 313 formed therein and communicated with the second accommodating cavity 41, and the second accommodating cavity 410 is communicated with one end of the liquid inlet 312, so that the liquid refrigerant flowing out of the condenser 20 enters the economizer 40. The second air supplement port 313 penetrates the first casing 31 through a connection pipeline to communicate with the first air supplement port 13, and it should be understood that in the air conditioner 100, a throttling device (also referred to as a throttle valve) is usually provided on a pipeline between the condenser 20 and the evaporator 30, so that a high-low pressure region is generated in a refrigeration system of the air conditioner 100, and a stable refrigerant circulation is ensured. In this way, the second air supplement port 313 can introduce the intermediate-pressure refrigerant gas generated by the throttling flash of the throttling device into the compressor 10.

The other end of the inlet 312 communicates with the outlet 21 of the condenser 20 to allow the liquid refrigerant in the condenser 20 to flow to the economizer. The other end of the second air supplement port 313 communicates with the first air supplement port 13 to allow the gaseous refrigerant in the economizer 40 to flow back into the compressor 10. In addition, the second housing 41 is further provided with a liquid outlet 411.

In addition, the distributor 50 is also disposed in the first accommodating chamber 310, and the distributor 50 is communicated with the liquid outlet 411 of the economizer 40, and is configured to distribute the liquid refrigerant flowing out of the economizer 40 into the first accommodating chamber 310, so that the liquid refrigerant is evaporated into a gaseous refrigerant by the evaporator 30, and the gaseous refrigerant flows back to the compressor 10 through the gas outlet 311 and the suction port 11.

The air conditioner 100 in the present application includes a compressor 10, a condenser 20, an evaporator 30, an economizer 40, and a distributor 50, wherein the compressor 10 includes: an intake port 11, an exhaust port 12, and a first air supplement port 13; the condenser 20 includes: an outlet 21 and an inlet 22. Wherein the inlet 22 communicates with the exhaust port 12. The evaporator 30 includes: a first housing 31, in which a first accommodating chamber 310 is formed in the first housing 31; the first casing 31 is opened with an air outlet 311 and an liquid inlet 312 communicated with the first accommodating cavity 310, and the air outlet 311 is communicated with the suction port 11, so that the gaseous refrigerant in the evaporator 30 flows back to the compressor 10. The economizer 40 is disposed in the first receiving chamber 310, the economizer 40 including: the second housing 41, the second housing 41 has a second accommodating cavity 410 therein, and the second housing 41 has a second air supplement opening 313 communicating with the second accommodating cavity 410. The second accommodating cavity 410 is communicated with one end of the liquid inlet 312, the other end of the liquid inlet 312 is communicated with the outlet 21, so that the liquid refrigerant in the condenser 20 flows to the economizer 40, and the second air supplement port 313 penetrates through the first shell 31 through a connecting pipeline to be communicated with the first air supplement port 13, so that the gaseous refrigerant in the economizer 40 flows back to the compressor 10; the second casing 41 is further provided with a liquid outlet 411; the distributor 50 is disposed in the first accommodating chamber 310, and the distributor 50 is communicated with the liquid outlet 411 and is configured to distribute the liquid refrigerant flowing out of the economizer 40 into the first accommodating chamber 310, so that the liquid refrigerant is evaporated into the gaseous refrigerant by the evaporator 30.

In this way, the economizer 40 is disposed in the first accommodating chamber 310 of the evaporator 30, so that the internal space of the evaporator 30 can be fully utilized, and the air supplement amount of the economizer 40 can be increased. In addition, since the economizer 40 is built into the evaporator 30, there is no need to additionally communicate the economizer 40 with the compressor 10 and the condenser 20, and the economizer 40 only needs to communicate with the compressor 10 through the second air make-up port 313 and with the outlet 21 of the condenser 20 through the liquid inlet 312. Therefore, the welding spots of the air conditioner 100 pipeline are greatly reduced, the assembly efficiency of the air conditioner 100 unit is improved, and the refrigerant leakage possibility is reduced. In addition, the economizer 40 belongs to a pressure container, and the number of the pressure containers of the air conditioner 100 can be reduced by arranging the economizer 40 in the evaporator 30, so that the subsequent maintenance cost of the air conditioner 100 is reduced.

In some embodiments, the economizer 40 is designed as a one-piece construction with the evaporator 30. Therefore, the economizer 40 has fewer welding points with the evaporator 30, the whole structure of the air conditioner 100 is compact, and the size of the air conditioner 100 is reduced.

In some embodiments, as shown in fig. 6, the air conditioner 100 may further include: and a first throttle valve 60, the first throttle valve 60 being provided on a line between the evaporator 30 and the condenser 20. The first throttle 60 is a valve for controlling or adjusting the flow rate and pressure of a medium (i.e., refrigerant) by changing the passage area. The first throttle valve 60 may also be referred to as a first electronic expansion valve, and the first throttle valve 60 is used for reducing the saturated liquid or the supercooled liquid in the condenser 20 to the evaporation pressure and the evaporation temperature after being throttled by the first throttle valve 60.

Thus, the pressure at the front end (i.e., the end of the condenser 20) of the first throttle valve 60 is high, and the pressure at the rear end (i.e., the end of the evaporator 30) is low, so that there is a pressure difference between the evaporator 30 and the condenser 20, and the refrigerant flashes at the moment that the refrigerant flows out of the throttle valve to absorb heat in the refrigerant, thereby facilitating the subsequent circulation of the refrigerant in the air conditioner 100.

It will be appreciated that the high pressure liquid refrigerant from the condenser 20 enters the inlet 312 and is split into two portions, one of which is further cooled by throttling, by thermal expansion, to reduce the temperature of the other portion, thereby subcooling it. Thus, the stabilized supercooled liquid refrigerant directly enters the first accommodating chamber 310 of the evaporator 30 through the liquid outlet 411 for refrigeration. And the other part of the uncooled gaseous refrigerant passes through the second air supplement port 313 to the first air supplement port 13 and reenters the compressor 10 to continue to be compressed and enter the cycle. The liquid refrigeration medium is stabilized by an expansion refrigeration mode to improve the capacity and the efficiency of the system.

However, when the aperture of the liquid inlet 312 is smaller than or equal to the aperture of the second gas supplementing port 313 and the pressure of the refrigerant entering from the liquid inlet 312 is high, the gaseous refrigerant flowing out of the second gas supplementing port 313 is easily accompanied by some liquid refrigerant, so that the gas-liquid refrigerant of the economizer 40 is not well separated, and the liquid impact occurs in the air conditioner 100.

Thus, in some embodiments of the present application, as shown in FIG. 7, the area of the cross-section taken perpendicular to the direction of extension of inlet port 312 (i.e., the cross-section taken along direction A in FIG. 7) is less than the area of the cross-section taken perpendicular to the direction of extension of second gas replenishment port 313 (i.e., the cross-section taken along direction B in FIG. 7).

In this way, the aperture of the liquid inlet 312 is larger than the aperture of the second air supplement port 313, which is helpful for separating the gaseous and liquid refrigerants and preventing the air conditioner 100 from liquid impact.

In one possible implementation, the cross-section taken perpendicular to the direction of extension of the inlet port 312 is a first circle, and the cross-section taken perpendicular to the direction of extension of the second plurality of gas orifices 313 is a second circle having a larger diameter than the first circle. That is, the liquid inlet 312 and the second gas supplementing opening 313 are both cylindrical. In this way, the components of the air conditioner 100 (i.e., the evaporator 30 and the condenser 20) can be communicated through the circular pipes. The area surrounded by the same perimeter is the largest in a circle, and the circle is the most economical. In addition, circular tubing is relatively easy to seal, has high strength, and has the lowest flow resistance coefficient of all shapes.

In some embodiments, the economizer 40 can be a flash economizer 40. The flash economizer 40 (also called flash tank, power economizer, flash evaporation power economizer) is an energy saving device used by a cold water unit in the air conditioner 100, after the refrigerant liquid is throttled and flashed by a first throttle valve, the refrigerant enters a second accommodating cavity 410 of the flash economizer 40 through a liquid inlet 312, wherein part of the liquid refrigerant is evaporated in the second accommodating cavity 410, the gas refrigerant generated by flash evaporation and evaporation returns to a high-pressure stage of the compressor 10 or the high-pressure stage compressor 10 jointly compressed by the two compressors 10 through a second air supplementing port 313 to be compressed again, the heat of the unevaporated liquid refrigerant is taken away by the evaporated refrigerant, the temperature is reduced to the saturation temperature corresponding to the intermediate pressure, the liquid refrigerant flows out of a liquid outlet 411 and enters the evaporator 30 to be evaporated after being distributed by the distributor 50. Thus, the cooling capacity of the air conditioner 100 is increased, the power consumption is reduced, and the purpose of energy saving is achieved.

In some embodiments of the present application, as shown in fig. 8, the first housing 31 of the evaporator 30 is cylindrical, the liquid inlet 312, the gas outlet 311 and the second air supplement port 313 are arranged at intervals along the axial direction of the first housing 31, and the gas outlet 311 is located between the liquid inlet 312 and the second air supplement port 313, that is, the liquid inlet 312 and the second air supplement port 313 are located on two opposite sides of the gas outlet 311. Thus, when the liquid refrigerant evaporates in the second receiving cavity 410, the evaporated refrigerant can sufficiently take away heat of the unevaporated liquid refrigerant. Thereby increasing the cooling capacity of the air conditioner 100 and reducing the energy consumption of the air conditioner 100.

In some embodiments, as shown in fig. 9, the liquid inlet 312, the gas outlet 311, and the second air supplement port 313 are all located in a first direction of the economizer 40 (i.e., a Y-axis direction in fig. 9), and the distributor 50 is located in a second direction of the economizer 40 (i.e., an opposite direction of the Y-axis direction in fig. 9), which is an opposite direction of the first direction.

Thus, the refrigerant entering from the liquid inlet 312 can enter the economizer 40 under the action of gravity, and the liquid refrigerant flowing from the liquid outlet 411 of the economizer 40 can reach the distributor 50 under the action of gravity, so that an additional pump is not required, and the cost of the air conditioner 100 is reduced.

In one possible implementation, the economizer 40 is located in the first receiving chamber 310 on a side thereof adjacent the inlet port 312. I.e., the economizer 40 is located at the top of the evaporator 30.

So, do not need additionally to set up the suction baffle among this evaporimeter 30, gaseous refrigerant when in the evaporimeter 30 from subsidiary a little vapor state liquid refrigerant to the first top that holds the chamber 310 rise, when vapor state liquid refrigerant contacts the second and holds the outer wall surface of chamber 410, this vapor state liquid refrigerant is attached to the second and holds on the outer wall surface of chamber 410 to reduce the probability that air conditioner 100 takes place the liquid hammer. Thus, the evaporator 30 does not need to be additionally provided with a suction baffle, which is beneficial to reducing the cost of the air conditioner 100.

In some embodiments, as shown in fig. 10, the long side direction of the second housing 41 is parallel to the axial direction of the first housing 31 (i.e., the X-axis direction in fig. 9, 10), and the short side direction of the second housing 41 is parallel to the arrangement direction of the loading port 312, the distributor 50, and the economizer 40 (i.e., the Y-axis direction in fig. 9, 10). That is, the economizer 40 is designed to be flatly disposed in the first accommodating chamber 310, so that the axial space of the first accommodating chamber 310 is fully utilized, and the gas compensation amount of the economizer 40 is increased.

Optionally, the second housing 41 may have a rectangular parallelepiped structure as shown in fig. 10, and optionally, the second housing 41 may also have other shapes such as a triangular prism, which is not limited in this application.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. An air conditioner, comprising:

a compressor, the compressor comprising: the air suction port, the air exhaust port and the first air supplement port;

a condenser, the condenser comprising: an outlet and an inlet, wherein the inlet is in communication with the exhaust port;

an evaporator, the evaporator comprising: the first shell is internally provided with a first accommodating cavity; the first shell is provided with an air outlet and a liquid inlet which are communicated with the first accommodating cavity, and the air outlet is communicated with the air suction port so as to enable the gaseous refrigerant in the evaporator to flow back to the compressor;

an economizer disposed in the first receiving chamber, the economizer comprising: the second shell is internally provided with a second accommodating cavity; the second shell is also provided with a second air supplement port communicated with the second accommodating cavity, the second accommodating cavity is communicated with one end of the liquid inlet, the other end of the liquid inlet is communicated with the outlet so that liquid refrigerant in the condenser flows to the economizer, and the second air supplement port penetrates through the first shell through a connecting pipeline and is communicated with the first air supplement port so that gaseous refrigerant in the economizer flows back to the compressor; a liquid outlet is also formed in the second shell;

the distributor is arranged in the first accommodating cavity, is communicated with the liquid outlet and is used for distributing the liquid refrigerant flowing out of the economizer into the first accommodating cavity so as to evaporate the liquid refrigerant into the gaseous refrigerant through the evaporator.

2. The air conditioner of claim 1, wherein the economizer is of unitary construction with the evaporator.

3. The air conditioner according to claim 1, wherein a cross-sectional area in a direction perpendicular to an extending direction of the liquid inlet is smaller than a cross-sectional area in a direction perpendicular to an extending direction of the second air supplement port.

4. The air conditioner of claim 3, wherein a cross section perpendicular to the liquid inlet extending direction is a first circle, and a cross section perpendicular to the second air supplement port extending direction is a second circle, and a diameter of the second circle is larger than a diameter of the first circle.

5. The air conditioner of claim 1, wherein the evaporator is a falling film evaporator.

6. The air conditioner of claim 5, wherein the economizer is a flash-type economizer.

7. The air conditioner as claimed in claim 6, wherein the first housing of the evaporator is cylindrical, the liquid inlet, the air outlet and the second air supplement port are arranged at intervals along an axial direction of the first housing, and the air outlet is located between the liquid inlet and the second air supplement port.

8. The air conditioner of claim 7, wherein the liquid inlet, the air outlet, and the second air supplement port are all located in a first direction of the economizer, and the distributor is located in a second direction of the economizer, the second direction being opposite to the first direction.

9. The air conditioner of claim 8, wherein the economizer is located in the first receiving chamber on a side thereof adjacent to the inlet port.

10. The air conditioner according to claim 8, wherein a long side direction of the second housing is parallel to an axial direction of the first housing, and a short side direction of the second housing is parallel to an arrangement direction of the liquid inlet, the distributor and the economizer.

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