CN221005543U - Refrigerating system and air conditioner - Google Patents

Abstract

The application relates to the technical field of heat exchange systems, and discloses a refrigerating system and an air conditioner. The refrigerating system comprises a compressor, a first heat exchanger, a throttling device and a second heat exchanger which are sequentially connected through a refrigerating pipeline, and the refrigerating system further comprises: a liquid storage device; the first refrigerant pipe is connected between a refrigerating pipeline between the compressor and the first heat exchanger and the liquid storage device; and the second refrigerant pipe is connected between the refrigerating pipeline between the throttling device and the second heat exchanger and the liquid storage device. According to the embodiment, the refrigerant quantity participating in the heat exchange cycle can be adjusted through the liquid storage device, the first refrigerant pipe and the second refrigerant pipe, and the rationality of the refrigerant quantity participating in the heat exchange cycle is improved, so that the energy efficiency of the refrigerating system is improved.

Description

Refrigerating system and air conditioner

The present application claims priority from chinese patent application No. 2023104382822, filed under the name "refrigeration system and air conditioner" No. 2023, 4, 21, the entire contents of which are incorporated herein by reference.

Technical Field

The application relates to the technical field of heat exchange systems, in particular to a refrigerating system and an air conditioner.

Background

Refrigerant in the air conditioning system circularly flows in the system to realize a refrigerating operation or heating operation mode. When the air conditioner runs in a refrigerating mode with different loads or a heating mode with different loads, the optimal refrigerant circulation quantity required by the refrigerating system is different, but the refrigerant filling quantity of the refrigerating system is fixed, and when the refrigerating outside is high in temperature or the heating outside is low in temperature, the rated refrigerant quantity can cause the overload running of the air conditioner system, so that the refrigerating or heating effect is poor; and when the refrigerating outside is low in temperature or the heating outside is high in temperature, the air conditioning system runs under low load, the refrigerant quantity is possibly in the condition of partial surplus, the refrigerant does not play a role in heat exchange in the system running, the running energy efficiency of the temperature regulating equipment unit is low, the optimal performance of the refrigerating system cannot be exerted, and the heat exchange effect of the refrigerating system is poor.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of utility model

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a refrigerating system and an air conditioner, which are used for adjusting the quantity of refrigerants participating in heat exchange circulation in the refrigerating system and improving the performance of the refrigerating system.

According to an embodiment of the first aspect of the present application, there is provided a refrigeration system including a compressor, a first heat exchanger, a throttling device, and a second heat exchanger connected in this order by a refrigeration line, the refrigeration system further including: a liquid storage device; the first refrigerant pipe is connected between a refrigerating pipeline between the compressor and the first heat exchanger and the liquid storage device; and the second refrigerant pipe is connected between the refrigerating pipeline between the throttling device and the second heat exchanger and the liquid storage device.

In some alternative embodiments, the refrigeration system further comprises: the four-way valve is connected with the first heat exchanger through a first port, and a refrigeration pipeline between the first port and the first heat exchanger is connected with a first refrigerant pipe.

In some alternative embodiments, the refrigeration circuit includes a first circuit connected between the throttling device and the second heat exchanger, the second refrigerant circuit is connected to a first location of the first circuit, and a ratio of a distance between the first location and the second heat exchanger to a length of the first circuit ranges fromTo/>And/or the number of the groups of groups,

The refrigerating pipeline comprises a second pipeline which is connected between the compressor and the first heat exchanger, the first refrigerant pipeline is connected with a second position of the second pipeline, and the ratio range of the distance between the second position and the compressor to the length of the second pipeline isTo/>

In some alternative embodiments, the refrigeration system further comprises: the first electromagnetic valve is arranged on the first refrigerant pipe; the second electromagnetic valve is arranged on the second refrigerant pipe.

In some alternative embodiments, the ratio of the distance between the first solenoid valve and the liquid storage device to the length of the first refrigerant pipe ranges fromTo/>And/or the number of the groups of groups,

The ratio range of the distance between the second electromagnetic valve and the liquid storage device to the length of the second refrigerant pipe isTo/>

In some alternative embodiments, the refrigeration system further comprises: and the third refrigerant pipe is connected between the refrigerating pipeline between the first heat exchanger and the throttling device and the liquid storage device.

In some alternative embodiments, the refrigeration system further comprises: and the third electromagnetic valve is arranged on the third refrigerant pipe.

In some alternative embodiments, the ratio of the distance between the third solenoid valve and the liquid storage device to the length between the third refrigerant tubes ranges fromTo/>

In some alternative embodiments, the refrigeration circuit includes a third circuit connected between the first heat exchanger and the throttling device, the third refrigerant circuit being connected to a third location of the third circuit, the ratio of the distance between the third location and the first heat exchanger to the length of the third circuit ranging fromTo/>

According to an embodiment of the second aspect of the present application, there is provided an air conditioner comprising a refrigeration system as described in any of the preceding claims.

The refrigerating system and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

In this embodiment, the first refrigerant pipe is connected between the refrigerating pipeline between the compressor and the first heat exchanger and the liquid storage device, and the second refrigerant pipe is connected between the refrigerating pipeline between the throttling device and the second heat exchanger and the liquid storage device. Therefore, the refrigerant in the refrigeration pipeline can flow into or flow out of the liquid storage device through the first refrigerant pipe and the second refrigerant pipe respectively, so that the refrigerant in the refrigeration pipeline is stored in the liquid storage device, and the amount of the refrigerant participating in the heat exchange cycle is reduced. Or the refrigerant stored in the liquid storage device is supplemented into the refrigerating pipeline, so that the amount of the refrigerant participating in the heat exchange cycle is increased. According to the embodiment, the refrigerant quantity participating in the heat exchange cycle can be adjusted through the liquid storage device, the first refrigerant pipe and the second refrigerant pipe, and the rationality of the refrigerant quantity participating in the heat exchange cycle is improved, so that the energy efficiency of the refrigerating system is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic diagram of an operational state of a refrigeration system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another operating condition of a refrigeration system provided by an embodiment of the present disclosure;

FIG. 3 is a schematic view of an operational state of another refrigeration system provided by an embodiment of the present disclosure;

fig. 4 is a schematic structural view of another operating state of another heat exchange system provided in an embodiment of the present disclosure.

Reference numerals:

100. A compressor; 110. a first pipeline; 120. a second pipeline; 130. a third pipeline; 200. a four-way valve; 300. a first heat exchanger; 400. a throttle device; 500. a second heat exchanger; 600. a liquid storage device; 700. a first refrigerant pipe; 710. a first electromagnetic valve; 800. a second refrigerant pipe; 810. a second electromagnetic valve; 900. a third refrigerant pipe; 910. and a third solenoid valve.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

The embodiment of the present disclosure provides a refrigeration system, as shown in fig. 1 to 4, which includes a compressor 100, a first heat exchanger 300, a throttling device 400, and a second heat exchanger 500, which are sequentially connected through a refrigeration line. The refrigeration system further includes a liquid storage device 600, a first refrigerant pipe 700, and a second refrigerant pipe 800. The first refrigerant pipe 700 is connected between the liquid storage device 600 and a refrigeration line between the compressor 100 and the first heat exchanger 300. The second refrigerant pipe 800 is connected between the liquid storage device 600 and the refrigeration line between the throttle device 400 and the second heat exchanger 500.

The direction of the arrow in fig. 1 to 4 is the flow direction of the refrigerant.

Alternatively, the first heat exchanger 300 is an outdoor heat exchanger and the second heat exchanger 500 is an indoor heat exchanger. As shown in fig. 2 and 4, in the case of the heat exchange system operating in the cooling mode, the refrigerant flows out of the compressor 100, flows through the first heat exchanger 300, the throttling device 400, and the second heat exchanger 500 in this order, and then flows back into the compressor 100 again to complete one refrigeration cycle. At this time, the first heat exchanger 300 serves as a condenser, and the refrigerant condenses and releases heat in the first heat exchanger 300. The second heat exchanger 500 serves as an evaporator, and the refrigerant in the second heat exchanger 500 absorbs heat by evaporation to absorb heat in the room, thereby providing cold to the room and reducing the indoor temperature. As shown in fig. 1 and 3, in case that the heat exchange system operates in the heating mode, the refrigerant flows out of the compressor 100, sequentially passes through the second heat exchanger 500, the throttling device 400, and the first heat exchanger 300, and then flows back into the compressor 100 again to complete one heating cycle. At this time, the second heat exchanger 500 serves as a condenser, and the refrigerant condenses and releases heat in the second heat exchanger 500 to increase heat to the indoor space and increase the indoor temperature. The first heat exchanger 300 serves as an evaporator, and the refrigerant evaporates and absorbs heat in the first heat exchanger 300, and is supplied to the compressor 100 after being changed into a gaseous refrigerant.

Alternatively, the first heat exchanger 300 is an indoor heat exchanger and the second heat exchanger 500 is an outdoor heat exchanger. As shown in fig. 1 and 3, in the case of the heat exchange system operating in the cooling mode, the refrigerant flows out of the compressor 100, flows through the second heat exchanger 500, the throttling device 400, and the first heat exchanger 300 in this order, and then flows back into the compressor 100 again to complete one cooling cycle. At this time, the second heat exchanger 500 serves as a condenser, and the refrigerant condenses and releases heat in the second heat exchanger 500. The first heat exchanger 300 serves as an evaporator, and the refrigerant in the first heat exchanger 300 absorbs heat by evaporation to absorb heat in the room, thereby providing cold to the room and reducing the indoor temperature. As shown in fig. 2 and 4, in case that the heat exchange system operates in the heating mode, the refrigerant flows out of the compressor 100, sequentially passes through the first heat exchanger 300, the throttling device 400, and the second heat exchanger 500, and then flows back into the compressor 100 again to complete one heating cycle. At this time, the first heat exchanger 300 serves as a condenser, and the refrigerant condenses and releases heat in the first heat exchanger 300 to increase heat to the indoor space and increase the indoor temperature. The second heat exchanger 500 serves as an evaporator, and the refrigerant evaporates and absorbs heat in the second heat exchanger 500, and is converted into a gaseous refrigerant, which is supplied to the compressor 100.

In the present embodiment, the first refrigerant pipe 700 is connected between the refrigerating pipeline between the compressor 100 and the first heat exchanger 300 and the liquid storage device 600, and the second refrigerant pipe 800 is connected between the refrigerating pipeline between the throttling device 400 and the second heat exchanger 500 and the liquid storage device 600. In this way, the refrigerant in the refrigeration pipeline can flow into or out of the liquid storage device 600 through the first refrigerant pipe 700 and the second refrigerant pipe 800 respectively, so as to store the refrigerant in the refrigeration pipeline in the liquid storage device 600, and reduce the amount of the refrigerant participating in the heat exchange cycle. Or the refrigerant stored in the liquid storage device 600 is supplemented into the refrigerating pipeline, so as to increase the quantity of the refrigerant participating in the heat exchange cycle. In this embodiment, the refrigerant quantity participating in the heat exchange cycle can be adjusted through the liquid storage device 600, the first refrigerant pipe 700 and the second refrigerant pipe 800, so that the rationality of the refrigerant quantity participating in the heat exchange cycle is improved, and the energy efficiency of the refrigeration system is improved.

In some alternative embodiments, as shown in fig. 1 and 4, the refrigeration system further includes a four-way valve 200, the four-way valve 200 includes a first port, the first port of the four-way valve 200 is connected to the first heat exchanger 300, and a refrigeration line between the first port and the first heat exchanger 300 is connected to the first refrigerant pipe 700.

Further, the four-way valve 200 further includes a second port, a third port, and a fourth port. The second port is connected to the second heat exchanger 500, the third port is connected to the air outlet of the compressor 100, and the fourth port is connected to the air return port of the compressor 100. Wherein the third port is capable of communicating with the first port and the fourth port is capable of communicating with the second port. Or the third port can be in communication with the second port and the first port can be in communication with the fourth port.

With this alternative embodiment, as the refrigerant flows along the compressor 100, the second heat exchanger 500, the throttling device 400, and the first heat exchanger 300 in sequence through the refrigeration line, the air outlet of the compressor 100 communicates with the second heat exchanger 500, the first heat exchanger 300 communicates with the return air port of the compressor 100, the first port communicates with the fourth port, and the third port communicates with the second port. The refrigeration line between the first port and the first heat exchanger 300 is connected to the first refrigerant line 700. In this way, when the refrigerant storage amount of the liquid storage device 600 is increased, the second refrigerant pipe 800 is turned on, and the first refrigerant pipe 700 is turned off. The refrigerant can flow into the liquid storage device 600 through the second refrigerant pipe 800 to increase the refrigerant storage in the liquid storage device 600, thereby reducing the refrigerant quantity participating in the heat exchange cycle. When the refrigerant storage amount of the liquid storage device 600 is reduced, the first refrigerant pipe 700 is turned on, and the second refrigerant pipe 800 is turned off. The refrigerant in the accumulator 600 can also flow into the refrigeration line between the first port and the first heat exchanger 300 through the first refrigerant pipe 700, and thus flows into the return port of the compressor 100 through the first port. This increases the amount of refrigerant involved in the heat exchange cycle. The refrigerant in the liquid storage device 600 can flow into the return port of the compressor 100 through the first refrigerant pipe 700 to supplement air to the compressor 100 and increase the cooling efficiency, thereby increasing the return air amount of the compressor 100 and increasing the heating capacity of the compressor 100.

When the refrigerant flows along the compressor 100, the first heat exchanger 300, the throttling device 400 and the second heat exchanger 500 in sequence through the refrigerating pipeline, the air outlet of the compressor 100 is communicated with the first heat exchanger 300, and the second heat exchanger 500 is communicated with the air return port of the compressor 100. The first port communicates with the third port and the second port communicates with the fourth port. When the refrigerant storage amount of the liquid storage device 600 is reduced, the second refrigerant pipe 800 is turned on, and the refrigerant flows into the refrigeration line through the second refrigerant pipe 800. Further, the first refrigerant pipe 700 may be further turned on, so that the high-pressure gas refrigerant discharged from the compressor 100 may enter the liquid storage device 600 to increase the air pressure in the liquid storage device 600, increase the discharge speed of the liquid refrigerant in the liquid storage device 600 through the second refrigerant pipe 800, and increase the refrigerant release speed of the liquid storage device 600.

In some alternative embodiments, the refrigeration circuit includes a first circuit 110, the first circuit 110 is connected between the throttling device 400 and the second heat exchanger 500, the second refrigerant circuit 800 is connected to a first position of the first circuit 110, and a ratio of a distance between the first position and the second heat exchanger 500 to a length of the first circuit 110 ranges fromTo/>

In this embodiment, when the refrigerant in the first pipe 110 flows into the liquid storage device 600 through the second refrigerant pipe 800, the refrigerant amount in the first pipe 110 is reduced, and the refrigerant in the first pipe 110 is partially flashed, so as to increase the gaseous refrigerant amount in the first pipe 110. The first pipeline 110 is connected between the throttling device 400 and the second heat exchanger 500, and the ratio of the distance between the first position and the second heat exchanger 500 to the length of the first pipeline 110 is in the range ofTo/>That is, the ratio of the distance between the first location and the restriction 400 to the length of the first conduit 110 ranges from/>To/>In this way, in the case that the refrigerant flows along the second heat exchanger 500 to the throttling device 400, the flow path of the gas refrigerant after flash evaporation in the first pipeline 110 can be increased, and the fluctuation of the refrigerant in the first pipeline 110 can be reduced, so that the noise generated by the throttling device 400 during throttling can be reduced, and the user experience can be improved.

Optionally, the ratio of the distance between the first location and the second heat exchanger 500 to the length of the first conduit 110 isOr/>Etc.

In some alternative embodiments, the refrigeration circuit includes a second circuit 120, the second circuit 120 being connected between the compressor 100 and the first heat exchanger 300, the first refrigerant circuit 700 being connected to a second location of the second circuit 120, the ratio of the distance between the second location and the compressor 100 to the length of the second circuit 120 ranging fromTo/>

With this alternative embodiment, the second conduit 120 is connected between the compressor 100 and the first heat exchanger 300, and the ratio of the distance between the second location and the compressor 100 to the length of the second conduit 120 ranges fromTo/>The distance between the second refrigerant pipe 800 and the return air port of the compressor 100 is smaller than the distance between the second refrigerant pipe 800 and the first heat exchanger 300. In this way, when the air is supplied to the compressor 100 through the first refrigerant pipe 700, the time between the refrigerant flowing into the air return port of the compressor 100 in the first refrigerant pipe 700 can be shortened, and the sensitivity of supplying the air to the compressor 100 can be improved.

Optionally, the ratio of the distance between the second location and the compressor 100 to the length of the second conduit 120 isOr/>Etc.

In some alternative embodiments, as shown in fig. 1 to 4, the refrigeration system further includes a first solenoid valve 710, where the first solenoid valve 710 is disposed on the first refrigerant pipe 700. In this embodiment, the first electromagnetic valve 710 is disposed on the first refrigerant pipe 700, and the on-off of the first refrigerant pipe 700 can be achieved by adjusting the on-off of the first electromagnetic valve 710. When the first refrigerant pipe 700 is turned on, that is, when the first solenoid valve 710 is turned on, and when the first refrigerant pipe 700 is turned off, the first solenoid valve 710 is turned off. In this embodiment, the flow rate of the first refrigerant pipe 700 may be adjusted by the opening of the first solenoid valve 710, and when the opening of the first solenoid valve 710 is large, the flow rate of the first refrigerant pipe 700 is large, and when the opening of the first solenoid valve 710 is small, the flow rate of the first refrigerant pipe 700 is small.

In some alternative embodiments, as shown in fig. 1 to 4, the refrigeration system further includes a second solenoid valve 810, and the second solenoid valve 810 is disposed on the second refrigerant pipe 800. In this embodiment, the second electromagnetic valve 810 is disposed in the second refrigerant pipe 800, and the on-off of the second refrigerant pipe 800 can be achieved by adjusting the on-off of the second electromagnetic valve 810. When the second refrigerant pipe 800 is turned on, that is, the second solenoid valve 810 is turned on, and when the second refrigerant pipe 800 is turned off, the second solenoid valve 810 is turned off. In this embodiment, the flow rate of the second refrigerant pipe 800 can be adjusted by the opening of the second electromagnetic valve 810, when the opening of the second electromagnetic valve 810 is larger, the flow rate of the second refrigerant pipe 800 is larger, and when the opening of the second electromagnetic valve 810 is smaller, the flow rate of the second refrigerant pipe 800 is smaller.

Illustratively, the ratio of the distance between the first solenoid valve 710 and the liquid storage device 600 to the length of the first refrigerant pipe 700 ranges fromTo/>

In this embodiment, the first electromagnetic valve 710 is disposed in the first refrigerant pipe 700, and the ratio of the distance between the first electromagnetic valve 710 and the liquid storage device 600 to the length of the first refrigerant pipe 700 is in the range ofTo/>In this way, the distance between the first electromagnetic valve 710 and the liquid storage device 600 is smaller than or equal to the distance between the first electromagnetic valve 710 and the second pipeline 120, so as to adjust the amount of the refrigerant entering the liquid storage device 600 through the first electromagnetic valve 710, and improve the accuracy of refrigerant liquid storage in the liquid storage device 600.

Optionally, the ratio of the distance between the first solenoid valve 710 and the liquid storage device 600 to the length of the first refrigerant pipe 700 isOr/>Etc.

Optionally, the ratio of the distance between the second electromagnetic valve 810 and the liquid storage device 600 to the length of the second refrigerant pipe 800 is in the range ofTo/>

With this alternative embodiment, the second electromagnetic valve 810 is disposed in the second refrigerant pipe 800, and the ratio of the distance between the second electromagnetic valve 810 and the liquid storage device 600 to the length of the second refrigerant pipe 800 is in the range ofTo/>Thus, the distance between the second electromagnetic valve 810 and the liquid storage device 600 is smaller than the distance between the second electromagnetic valve 810 and the first pipeline 110, so as to adjust the amount of the refrigerant entering the liquid storage device 600 through the second electromagnetic valve 810, and improve the accuracy of the refrigerant storage amount in the liquid storage device 600.

Optionally, the ratio of the distance between the second electromagnetic valve 810 and the liquid storage device 600 to the length of the second refrigerant pipe 800 isOr/>Etc.

In some alternative embodiments, as shown in fig. 3 and 4, the refrigeration system further includes a third refrigerant pipe 900, where the third refrigerant pipe 900 is connected between the refrigeration line between the first heat exchanger 300 and the throttling device 400 and the liquid storage device 600.

With this alternative embodiment, the third refrigerant pipe 900 is connected between the refrigerating pipeline between the first heat exchanger 300 and the throttling device 400 and the liquid storage device 600, so that, in the case of providing the first refrigerant pipe 700 and the second refrigerant pipe 800, the refrigerant stored in the liquid storage device 600 can be increased or the refrigerant stored in the liquid storage device 600 can be reduced by switching on/off the third refrigerant pipe 900.

For example, in the case where the refrigerant flows along the compressor 100, the first heat exchanger 300, the throttling device 400, and the second heat exchanger 500, and when the refrigerant storage amount in the liquid storage device 600 is increased, the first refrigerant pipe 700 may be disconnected, the third refrigerant pipe 900 may be connected, and the second refrigerant pipe 800 may be connected, wherein the refrigerant flow rate of the second refrigerant pipe 800 is smaller than the refrigerant flow rate of the third refrigerant pipe 900. In this way, the liquid refrigerant between the first heat exchanger 300 and the throttling device 400 can flow into the liquid storage device 600 through the third refrigerant pipe 900, and the gaseous refrigerant in the liquid storage device 600 can flow into the second heat exchanger 500 through the second refrigerant pipe 800, so as to reduce the pressure in the liquid storage device 600, increase the speed of the liquid refrigerant entering the liquid storage device 600, and increase the amount of the refrigerant stored in the liquid storage device 600.

When the refrigerant storage amount in the liquid storage device 600 is reduced, the first refrigerant pipe 700 may be connected, the second refrigerant pipe 800 may be connected, and the third refrigerant pipe 900 may be disconnected. In this way, the high-pressure gaseous refrigerant discharged from the compressor 100 can flow into the liquid storage device 600 through the first refrigerant pipe 700, so as to increase the air pressure in the liquid storage device 600, enable the refrigerant in the liquid storage device 600 to flow into the refrigeration pipeline between the throttling device 400 and the second heat exchanger 500 through the second refrigerant pipe 800, and increase the flow velocity of the refrigerant in the second refrigerant pipe 800.

In the case that the refrigerant flows along the compressor 100, the second heat exchanger 500, the throttling device 400 and the first heat exchanger 300, and when the refrigerant storage amount in the liquid storage device 600 is increased, the first refrigerant pipe 700 may be disconnected, the second refrigerant pipe 800 may be connected, and the third refrigerant pipe 900 may be connected, wherein the flow rate of the third refrigerant pipe 900 is smaller than the flow rate of the second refrigerant pipe 800. In this way, the liquid refrigerant between the second heat exchanger 500 and the throttling device 400 can flow into the liquid storage device 600 through the second refrigerant pipe 800, and the gaseous refrigerant in the liquid storage device 600 can flow into the first heat exchanger 300 through the third refrigerant pipe 900, so as to reduce the pressure in the liquid storage device 600, increase the speed of the liquid refrigerant entering the liquid storage device 600, and increase the amount of the refrigerant stored in the liquid storage device 600.

When the refrigerant storage amount in the liquid storage device 600 is reduced, the first refrigerant pipe 700 may be turned off, the second refrigerant pipe 800 may be turned on or off at a small flow rate, and the third refrigerant pipe 900 may be turned on. In this way, the pressure of the refrigerant stored in the liquid storage device 600 is greater than the pressure of the refrigerant between the throttling device 400 and the first heat exchanger 300, and the refrigerant can flow out of the liquid storage device 600 through the third refrigerant pipe 900, so as to reduce the refrigerant storage in the liquid storage device 600.

Further, when the air make-up is needed to reduce the discharge temperature of the compressor 100, the first refrigerant pipe 700 may be turned on at a small flow rate when the refrigerant storage amount in the liquid storage device 600 is reduced, the third refrigerant pipe 900 may be turned on at a small flow rate, and the refrigerant in the liquid storage device 600 may flow into the first heat exchanger 300 through the third refrigerant pipe 900, may flow into the first port through the first refrigerant pipe 700, and may flow into the fourth port and the return port of the compressor 100. The small flow conduction of the first refrigerant pipe 700 can realize a throttling effect, a small amount of two-phase refrigerant after throttling is mixed with the refrigerant at the air return port of the compressor 100, so that the suction ineffective overheat is reduced, the mass flow of the compressor 100 is increased, and the low-temperature heating capacity of the compressor 100 is improved.

Illustratively, as shown in fig. 3 and 4, the refrigeration system further includes a third electromagnetic valve 910, and the third electromagnetic valve 910 is disposed in the third refrigerant pipe 900.

In this embodiment, the third electromagnetic valve 910 is disposed in the third refrigerant pipe 900, and the on-off of the third refrigerant pipe 900 can be achieved by adjusting the on-off of the third electromagnetic valve 910. When the third refrigerant pipe 900 is turned on, that is, when the third solenoid valve 910 is turned on, and when the third refrigerant pipe 900 is turned off, the third solenoid valve 910 is turned off. In this embodiment, the flow rate of the third refrigerant pipe 900 may be adjusted by the opening of the third electromagnetic valve 910, and when the opening of the third electromagnetic valve 910 is large, the flow rate of the third refrigerant pipe 900 is large, and when the opening of the third electromagnetic valve 910 is small, the flow rate of the third refrigerant pipe 900 is small.

In some alternative embodiments, the refrigeration circuit includes a third circuit 130, the third circuit 130 is connected between the first heat exchanger 300 and the throttling device 400, the third refrigerant circuit 900 is connected to a third position of the third circuit 130, and a ratio of a distance between the third position and the first heat exchanger 300 to a length of the third circuit 130 ranges fromTo/>

With this alternative embodiment, when the refrigerant in the third pipeline 130 flows into the liquid storage device 600 through the third refrigerant pipe 900, the amount of refrigerant in the third pipeline 130 decreases, and the refrigerant in the third pipeline 130 may have partial flash, so as to increase the amount of gaseous refrigerant in the third pipeline 130. The third pipeline 130 is connected between the throttling device 400 and the first heat exchanger 300, and the ratio of the distance between the third position and the first heat exchanger 300 to the length of the third pipeline 130 is in the range ofTo/>That is, the ratio of the distance between the third position and the throttle 400 to the length of the third conduit 130 ranges from/>To/>In this way, in the case that the refrigerant flows along the first heat exchanger 300 to the throttling device 400, the flow path of the gas refrigerant after flash evaporation in the third pipeline 130 can be increased, and the fluctuation of the refrigerant in the third pipeline 130 can be reduced, so that the noise generated by the throttling device 400 during throttling can be reduced, and the user experience can be improved.

Optionally, the ratio of the distance between the first location and the second heat exchanger 500 to the length of the first conduit 110 isOr/>Etc.

Further, the ratio of the distance between the third electromagnetic valve 910 and the liquid storage device 600 to the length between the third refrigerant pipes 900 is in the range ofTo/>

In the present embodiment, the third electromagnetic valve 910 is disposed in the third refrigerant pipe 900, and the ratio of the distance between the third electromagnetic valve 910 and the liquid storage device 600 to the length of the third refrigerant pipe 900 is in the range ofTo/>Thus, the distance between the third electromagnetic valve 910 and the liquid storage device 600 is smaller than the distance between the third electromagnetic valve 910 and the third pipeline 130, so as to adjust the amount of the refrigerant entering the liquid storage device 600 through the third electromagnetic valve 910, and improve the accuracy of the refrigerant storage amount in the liquid storage device 600.

Optionally, the ratio of the distance between the third electromagnetic valve 910 and the liquid storage device 600 to the length of the third refrigerant pipe 900 isOr/>Etc.

Embodiments of the present disclosure provide an air conditioner including a refrigeration system as described in any one of the above.

The air conditioner provided in the embodiments of the present disclosure, because of including the refrigeration system according to any one of the embodiments, has all the advantages of the refrigeration system according to any one of the embodiments, and is not described herein again.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. The utility model provides a refrigerating system, its characterized in that refrigerating system includes compressor, first heat exchanger, throttling arrangement and the second heat exchanger that connects gradually through the refrigeration pipeline, and refrigerating system still includes:

A liquid storage device;

The first refrigerant pipe is connected between a refrigerating pipeline between the compressor and the first heat exchanger and the liquid storage device;

And the second refrigerant pipe is connected between the refrigerating pipeline between the throttling device and the second heat exchanger and the liquid storage device.

2. The refrigeration system of claim 1, further comprising:

The four-way valve is connected with the first heat exchanger through a first port, and a refrigeration pipeline between the first port and the first heat exchanger is connected with a first refrigerant pipe.

3. A refrigeration system according to claim 1 wherein,

The refrigerating pipeline comprises a first pipeline which is connected between the throttling device and the second heat exchanger, the second refrigerant pipeline is connected with the first position of the first pipeline, and the range of the ratio of the distance between the first position and the second heat exchanger to the length of the first pipeline isTo/>And/or the number of the groups of groups,

The refrigerating pipeline comprises a second pipeline which is connected between the compressor and the first heat exchanger, the first refrigerant pipeline is connected with a second position of the second pipeline, and the ratio range of the distance between the second position and the compressor to the length of the second pipeline isTo/>

4. The refrigeration system of claim 1, further comprising:

The first electromagnetic valve is arranged on the first refrigerant pipe;

the second electromagnetic valve is arranged on the second refrigerant pipe.

5. A refrigeration system according to claim 4 wherein,

The ratio range of the distance between the first electromagnetic valve and the liquid storage device to the length of the first refrigerant pipe isTo/>And/or the number of the groups of groups,

The ratio range of the distance between the second electromagnetic valve and the liquid storage device to the length of the second refrigerant pipe isTo/>

6. The refrigeration system as recited in any one of claims 1 to 5 further comprising:

And the third refrigerant pipe is connected between the refrigerating pipeline between the first heat exchanger and the throttling device and the liquid storage device.

7. The refrigeration system of claim 6, further comprising:

and the third electromagnetic valve is arranged on the third refrigerant pipe.

8. The refrigeration system of claim 7, wherein,

The ratio range of the distance between the third electromagnetic valve and the liquid storage device to the length between the third refrigerant pipes isTo/>

9. The refrigeration system of claim 6, wherein,

The refrigerating pipeline comprises a third pipeline which is connected between the first heat exchanger and the throttling device, the third refrigerant pipeline is connected with a third position of the third pipeline, and the range of the ratio of the distance between the third position and the first heat exchanger to the length of the third pipeline isTo/>

10. An air conditioner, comprising: a refrigeration system according to any of claims 1 to 9.