CN212157749U - Liquid storage device and air conditioning system with same - Google Patents

Abstract

The utility model provides a reservoir and have its air conditioning system, the reservoir includes casing and honeycomb duct, is formed with confined appearance chamber in the casing, and the honeycomb duct sets up on the casing and has the entering end that stretches into in the appearance chamber, and the honeycomb duct stretches into the end and has seted up the water conservancy diversion hole including being located the first mouth of pipe on stretching into the end, and the water conservancy diversion hole is less than first mouth of pipe on the direction of gravity of casing. The utility model provides a reservoir and have its air conditioning system, be equipped with the water conservancy diversion hole on the end of entering through stretching into at the honeycomb duct, first mouth of pipe is higher than the water conservancy diversion hole in the gravity direction of casing, make the reservoir can steadily and fast supply the refrigerant to air conditioning system and reduced the make-up volume that the refrigerant supplyed to air conditioning system from the reservoir, avoid air conditioning system by the mode of heating switch to when refrigeration or defrosting mode because supply the unable complete evaporation's of refrigerant in the heat exchanger problem because of following the reservoir in the excessive refrigerant leads to getting into, the life of compressor has been improved.

Description

Liquid storage device and air conditioning system with same

Technical Field

The utility model relates to the field of refrigeration technology, especially, relate to a reservoir and have its air conditioning system.

Background

An air conditioning system generally has operation modes such as cooling, heating or defrosting, and the amount of refrigerant used is different in different operation modes, so that the amount of refrigerant used needs to be adjusted by an accumulator in the air conditioning system. For example, the usage amount of the refrigerant in the heating mode of the air conditioning system is less than that of the refrigerant in the cooling or defrosting mode, wherein when the air conditioning system is switched from the cooling or defrosting mode to the heating mode, the redundant refrigerant in the pipeline is stored in the reservoir under the action of the pressure difference; when the air conditioning system is switched from a heating mode to a cooling or defrosting mode, the refrigerant in the liquid storage device is output to the pipeline for refrigerant compensation under the action of pressure difference. The existing liquid reservoir comprises a shell and a straight tubular flow guide pipe, wherein one end of the flow guide pipe is inserted into the bottom of an inner cavity of the shell from the top of the shell, and the other end of the flow guide pipe is connected into a pipeline of an air conditioning system.

When the air conditioning system operates in a heating mode, the pressure and the temperature of the refrigerant in the liquid reservoir are higher, when the heating mode is switched to a refrigerating or defrosting mode, the pressure at the interface of the flow guide pipe can be instantly reduced and is lower than the pressure in the liquid reservoir, and a large amount of refrigerant in the liquid reservoir can be rapidly supplemented into a heat exchanger of the air conditioning system through the flow guide pipe to be evaporated. However, this results in an excessive amount of refrigerant entering the heat exchanger, so that the refrigerant entering the heat exchanger cannot be completely evaporated, thereby affecting the service life of the compressor in the air conditioning system.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an improved accumulator, which can reduce the amount of refrigerant to be supplemented when the air conditioning system is switched from the heating mode to the cooling or defrosting mode, avoid the problem that the refrigerant cannot be completely evaporated in the heat exchanger due to the excessive amount of refrigerant being supplemented, and improve the service life of the compressor.

The utility model provides a liquid storage device, including casing and honeycomb duct, be formed with the confined appearance chamber in the casing, the honeycomb duct sets up on the casing and has the end of stretching into that stretches into in the appearance chamber, and the honeycomb duct stretches into the end and has seted up the water conservancy diversion hole including being located the first mouth of pipe on stretching into the end, and the water conservancy diversion hole is less than first mouth of pipe on the direction of gravity of casing.

The utility model provides a reservoir is equipped with the water conservancy diversion hole that runs through stretching into the end at the honeycomb duct, and first mouth of pipe is higher than the water conservancy diversion hole in the gravity direction of casing, can reduce the replenishment volume of refrigerant when air conditioning system switches to refrigeration or defrosting mode by the mode of heating, avoids because the problem of supplementing excessive refrigerant and leading to the unable complete evaporation of refrigerant in the heat exchanger has improved the life of compressor.

In order to realize that the first pipe orifice of the extending end is higher than the diversion hole in the gravity direction of the casing, in an embodiment of the present invention, the extending end is of a bent pipe structure or a straight pipe structure.

So set up, stretch into end accessible return bend or straight tube structure and all can realize that first mouth of pipe is higher than the water conservancy diversion hole in the direction of gravity of casing, and return bend or straight tube form stretch into end simple structure and easy production, have reduced the manufacturing cost of reservoir.

In order to improve the utilization ratio of the liquid storage device to the refrigerant, in an embodiment of the present invention, when the extending end is of a bent pipe structure, the extending end includes a bent portion, the bent portion is lower than the first pipe orifice in the gravity direction of the casing, and the diversion hole is located on the bent portion.

So set up, the distance between water conservancy diversion hole and the first mouth of pipe is great for the water conservancy diversion hole can be in the darker position in the refrigerant, improves the utilization ratio of reservoir to the refrigerant.

In order to further improve the utilization ratio of the liquid storage device to the refrigerant, in an embodiment of the present invention, the elbow portion includes a flow guiding section, the flow guiding section is located at the farthest position of the elbow portion in the gravity direction along the casing, and the flow guiding hole is located on the flow guiding section.

So set up, the distance between water conservancy diversion hole and the first mouth of pipe further increases, has further improved the utilization ratio of reservoir to the refrigerant.

In order to realize that the refrigerant flows to air conditioning system in with gentle velocity of flow and compromise the manufacturing cost of reservoir in the honeycomb duct, the utility model discloses an embodiment, the shape of stretching into the end is the U type.

So set up, the honeycomb duct can make the refrigerant flow to air conditioning system with mild velocity of flow in, and the processing degree of difficulty of honeycomb duct reduces, has reduced the manufacturing cost of reservoir.

In order to realize improving the utilization ratio of reservoir to the refrigerant the utility model discloses an in the embodiment, the reservoir is still including setting up the connection elbow on stretching into the end, and connection elbow includes relative first end and second end, and the first end is passed through the water conservancy diversion hole and is set up with the lumen intercommunication of honeycomb duct, and the second end extends the setting along the gravity direction of casing.

So set up, the distance between the second end of connecting elbow and the first mouth of pipe is great for the second end of connecting elbow can be in the darker position in the refrigerant, improves the utilization ratio of reservoir to the refrigerant.

In order to realize further improving the reservoir and compromise the manufacturing cost of reservoir simultaneously to the utilization ratio of refrigerant the utility model discloses an in the embodiment, connecting bend is including being located the second mouth of pipe that the second was held, and the second mouth of pipe orientation deviates from the setting of water conservancy diversion hole direction.

So set up, connect the return bend and can extend toward the depth direction to the at utmost under the condition that does not increase length, further improve the utilization ratio of reservoir to the refrigerant. Meanwhile, the connecting bent pipe is simple in structure, and the production cost of the liquid storage device is reduced.

In order to improve the supplement efficiency of the liquid storage device to the refrigerant, the utility model discloses an embodiment, stretch into to serve the interval and be equipped with a plurality of water conservancy diversion holes.

So set up, a plurality of water conservancy diversion holes all can inhale the refrigerant in the chamber in the honeycomb duct with supplement the refrigerant to air conditioning system simultaneously, have reduced the required time of reservoir replenishment refrigerant, have improved the reservoir to the supplementary efficiency of refrigerant.

In order to avoid first mouth of pipe to inhale liquid refrigerant and compromise the manufacturing cost of reservoir the utility model discloses an embodiment, first mouth of pipe orientation deviates from the setting of water conservancy diversion hole direction.

With the arrangement, the first pipe orifice of the extending end is far away from the liquid refrigerant in the cavity, so that the first pipe orifice is prevented from sucking the liquid refrigerant. Meanwhile, the stretching end has a simple structure, and the production cost of the liquid storage device is reduced.

The utility model also provides an air conditioning system, including the reservoir, the reservoir is foretell reservoir.

The utility model provides an air conditioning system can reduce the reservoir and supply the replenishment volume to the refrigerant in the pipeline when the mode switches to refrigeration or defrosting mode by heating, avoids because supply excessive refrigerant and lead to the problem that the refrigerant can't evaporate completely in the heat exchanger, has improved the life of compressor.

Drawings

Fig. 1 is a schematic half-sectional view of a reservoir according to an embodiment of the present invention;

fig. 2 is a schematic half-sectional view of a reservoir according to another embodiment of the present invention;

fig. 3 is a schematic half-sectional view of a reservoir according to another embodiment of the present invention.

Description of the main elements

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic half-sectional view of a liquid reservoir according to an embodiment of the present invention. The air conditioning system comprises a heat exchanger, a throttling device and a liquid storage device, wherein the heat exchanger is connected with the throttling device through a pipeline, and the liquid storage device is connected into the pipeline. The throttling device is for example, but not limited to, an expansion valve. The liquid accumulator has the function of storing the refrigerant and is used for adjusting the using amount of the refrigerant needed by the air conditioning system during operation. The heat exchanger is used as an evaporator when the air conditioning system operates in a cooling mode, and is used as a condenser when the air conditioning system operates in a heating mode.

The reservoir includes casing 100, is formed with confined appearance chamber 101 in the casing 100, and the reservoir still includes honeycomb duct 200, and honeycomb duct 200 sets up on casing 100 and has the end 210 that stretches into in holding chamber 101, and honeycomb duct 200 is including being located the first mouth of pipe 201 that stretches into on end 210, stretches into some water conservancy diversion holes 211 that end 210 seted up, and water conservancy diversion hole 211 is less than first mouth of pipe 201 in the direction of gravity of casing 100.

In the present embodiment, the refrigerant in the accumulator has a gas portion and a liquid portion, and the cavity 101 in the housing 100 is closed, so that the leakage of the gas refrigerant from the housing 100 can be avoided, and the air pressure and temperature of the refrigerant in the accumulator can be maintained. The draft tube 200 is fixed on the casing 100, one end of the draft tube 200 extends into the cavity 101, and the other end of the draft tube 200 is located outside the casing 100 and is connected to the pipeline, so as to communicate the liquid reservoir and the pipeline, and further, the refrigerant in the air conditioning system is stored in the cavity 101 through the draft tube 200 and is supplemented to the air conditioning system through the draft tube 200.

The two ends of the flow guide tube 200 are respectively provided with a tube opening, wherein the tube opening located at the extending end 210 is a first tube opening 201. The first nozzle 201 is located at the end of the projecting end 210. The extending end 210 is further provided with a flow guiding hole 211, and the flow guiding hole 211 penetrates through the side wall of the flow guiding pipe 200 to communicate the pipe cavity of the flow guiding pipe 200 with the cavity 101. The refrigerant in the gas part and the refrigerant in the liquid part in the accumulator are under the action of gravity, the refrigerant in the gas part is located above the refrigerant in the liquid part in the gravity direction of the shell 100, and the first nozzle 201 is located in the refrigerant in the gas part and the flow guide hole 211 is located in the refrigerant in the liquid part because the first nozzle 201 is higher than the flow guide hole 211 in the gravity direction of the shell 100. When the air conditioning system is switched from the heating mode to the cooling or defrosting mode, due to the large pressure difference between the interface of the liquid reservoir and the inner cavity 101, the liquid refrigerant enters the flow guide pipe 200 through the flow guide hole 211 and is supplemented into the air conditioning system, and the gaseous refrigerant also enters the flow guide pipe 200 through the flow guide pipe 200 and flows into the air conditioning system. After the gaseous refrigerant in the liquid reservoir is reduced, the refrigerant liquid in the liquid reservoir can be continuously evaporated to form the gaseous refrigerant, at the moment, the pressure and the temperature in the liquid reservoir can be reduced along with the gaseous refrigerant, so that the pressure difference between the interface of the liquid reservoir and the inner accommodating cavity 101 is reduced until the gaseous refrigerant in the liquid reservoir cannot flow to the air-conditioning system from the flow guide pipe 200, at the moment, the flow guide pipe 200 only supplies the refrigerant to the air-conditioning system stably and quickly through the flow guide hole 211 under a small pressure difference, the supplement amount of the refrigerant from the liquid reservoir to the air-conditioning system is reduced, the refrigerant supplied to the heat exchanger from the liquid reservoir can be completely evaporated, and the problem that the refrigerant entering the heat exchanger cannot be completely evaporated due to the fact that excessive refrigerant is supplied from the liquid reservoir when the air-conditioning system is switched from a. When the refrigerant in the heat exchanger can be completely evaporated, the liquid refrigerant can not flow back to the compressor, and the service life of the compressor is further prolonged.

One end of the flow guide pipe 200 located outside the shell 100 is a connector end 202, and the reservoir is communicated with the heat exchanger and the pipeline of the throttling device through the connector end 202. The interface end 202 of the draft tube 200 is disposed opposite to the gravity direction of the housing 100, so as to directly interface with the interface on the pipeline.

The shape of the diversion hole 211 is, for example, but not limited to, a circle, a square, etc. The guide holes 211 may be linear or curved. The diameter of the flow guide hole 211 is smaller than that of the first pipe opening 201, so that the flow stability of the refrigerant in the flow guide pipe 200 is improved.

In an embodiment of the present invention, the extending end 210 is a bent pipe structure or a straight pipe structure.

In this embodiment, when the extending end 210 is of a bent pipe structure or a straight pipe structure, the first pipe port 201 can be higher than the guiding hole 211 in the gravity direction of the casing 100. The housing 100 has a top end 102 and a bottom end 103 opposite to each other in the gravity direction, and the top end 102 is higher than the bottom end 103. When the extending end 210 is a bent pipe structure, the guiding hole 211 is disposed on a portion of the bent pipe structure lower than the first pipe opening 201 along the gravity direction of the housing 100; when the extending end 210 is a straight pipe structure, the guiding hole 211 is disposed on a portion of the straight pipe structure different from the first pipe opening 201. When the extending end 210 is of an elbow structure, the position of the extending end 210 extending from the housing 100 into the cavity 101 is not limited, for example, the top end 102 of the housing 100 shown in fig. 1 may extend; when the extending end 210 is a straight pipe, the extending end 210 needs to extend into the cavity 101 from the bottom end 103 of the housing 100.

Further, when the extending end 210 is of a bent pipe structure, the extending end 210 includes a bent portion 212, the bent portion 212 is lower than the first pipe opening 201 in the gravity direction of the housing 100, and the guiding hole 211 is located on the bent portion 212. Since the elbow part 212 is lower than the first nozzle 201 in the gravity direction of the housing 100, when the guide hole 211 is disposed on the elbow part 212, it is directly achieved that the first nozzle 201 is higher than the guide hole 211 in the gravity direction of the housing 100. When the diversion hole 211 is arranged on the elbow part 212, the distance between the diversion hole 211 and the first pipe orifice 201 is large, so that the diversion hole 211 can be positioned at a deep position in the refrigerant, and the utilization rate of the liquid accumulator to the refrigerant is improved.

Further, the elbow part 212 includes a flow guiding section, the flow guiding section is located at the farthest position of the elbow part 212 in the gravity direction of the casing 100, and the flow guiding hole 211 is located on the flow guiding section, so that the distance between the flow guiding hole 211 and the first pipe orifice 201 can be further enlarged, and the utilization rate of the liquid accumulator to the refrigerant can be further improved.

Further, the shape of the extending end 210 is U-shaped, which not only reduces the processing difficulty of the flow guide tube 200 and reduces the production cost of the liquid storage device, but also enables the refrigerant to flow into the pipeline at a gentle flow rate in the flow guide tube 200.

It should be understood that the shape of the extending end 210 is not limited to U-shape, and may also be V-shape.

Referring to fig. 2, fig. 2 is a schematic half-sectional view of a reservoir according to another embodiment of the present invention.

The accumulator further includes a connection elbow 220 disposed on the extending end 210, the connection elbow 220 includes a first end and a second end 221, the first end is communicated with the tube cavity of the flow guide tube 200 through the flow guide hole 211, the second end 221 extends along the gravity direction of the housing 100, the distance between the second end 221 of the connection elbow 220 and the first tube orifice 201 is greater than the distance between the flow guide hole 211 and the first tube orifice 201, so that the second end 221 of the connection elbow 220 can be located at a deeper position in the refrigerant, and the utilization rate of the accumulator to the refrigerant is improved.

The connection elbow 220 is fixedly connected to the flow guide tube 200, and the fixed connection manner is, for example, but not limited to, welding. The first end can be inserted into the diversion hole 211 or the first end is butted with one side of the diversion hole 211 far away from the cavity of the diversion pipe 200.

Further, the connection elbow 220 includes a second pipe orifice located at the second end 221, and the second pipe orifice is disposed toward a direction away from the diversion hole 211, so that the connection elbow 220 can extend toward the depth direction to the greatest extent without increasing the length, and the utilization rate of the liquid reservoir to the refrigerant is further improved. Meanwhile, the connecting bent pipe 220 has a simple structure, and the production cost of the liquid storage device is reduced.

Referring to fig. 3, fig. 3 is a schematic half-sectional view of a reservoir according to another embodiment of the present invention.

The extending end 210 is provided with a plurality of flow guide holes 211 at intervals, so that the supplement efficiency of the liquid storage device to the refrigerant is improved, and the condition that the liquid storage device fails due to blockage of part of the flow guide holes 211 can be avoided. Wherein, a plurality of guiding holes 211 may be arranged at intervals along the axial direction of the guiding pipe 200.

In an embodiment of the present invention, the first pipe orifice 201 faces away from the direction of the guiding hole 211, so that the first pipe orifice 201 of the extending end 210 is away from the liquid refrigerant in the accommodating cavity 101, and the first pipe orifice 201 is prevented from sucking the liquid refrigerant. Meanwhile, the extending end 210 is simple in structure, and the production cost of the liquid storage device is reduced.

The utility model also provides an air conditioning system, including the reservoir, the reservoir is the reservoir in the above-mentioned embodiment. Wherein the reservoir is connected to the line between the expansion valve and the heat exchanger via a port 202. When the air-conditioning system operates in a heating mode, redundant refrigerants in the air-conditioning system are stored in the liquid storage device under the action of pressure difference through the pipeline; when the air conditioning system operates in a cooling or defrosting mode, the refrigerant in the liquid storage device is supplemented into the pipeline under the action of the pressure difference and enters the heat exchanger for evaporation.

The utility model provides a reservoir and have its air conditioning system, be equipped with the water conservancy diversion hole 211 that runs through on the end 210 that stretches into at honeycomb duct 200, first mouth of pipe 201 is higher than water conservancy diversion hole 211 in the direction of gravity of casing 100, make the reservoir can steadily and fast supply the refrigerant to air conditioning system and reduced the make-up volume that the refrigerant supplied to air conditioning system from the reservoir, avoid air conditioning system by the mode of heating switch to when refrigeration or defrosting mode because supply excessive refrigerant from the reservoir and lead to getting into the problem of the unable complete evaporation of refrigerant in the heat exchanger, the life of compressor has been improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (10)

1. The utility model provides a reservoir, includes casing (100) and honeycomb duct (200), be formed with confined appearance chamber (101) in casing (100), honeycomb duct (200) set up in casing (100) are gone up and have and stretch into end (210) are stretched into in appearance chamber (101), honeycomb duct (200) are including being located stretch first mouth of pipe (201) on end (210), its characterized in that, stretch into end (210) and seted up water conservancy diversion hole (211), water conservancy diversion hole (211) are in be less than in the direction of gravity of casing (100) first mouth of pipe (201).

2. Reservoir according to claim 1, characterized in that said projecting end (210) is of bent or straight tube configuration.

3. The accumulator according to claim 2, characterized in that, when the projecting end (210) is of elbow structure, the projecting end (210) comprises an elbow portion (212), the elbow portion (212) is lower than the first nozzle (201) in the direction of gravity of the casing (100), and the deflector hole (211) is located on the elbow portion (212).

4. Reservoir according to claim 3, characterized in that the elbow (212) comprises a flow guide section which is located furthest to the elbow (212) in the direction of gravity along the housing (100), on which flow guide hole (211) is located.

5. Reservoir according to claim 3, characterized in that said projecting end (210) has a U-shape.

6. The accumulator according to claim 1, characterized in that it further comprises a connection elbow (220) arranged on the extending end (210), said connection elbow (220) comprising a first end and a second end (221) opposite to each other, said first end being arranged in communication with the lumen of the flow-guiding tube (200) through the flow-guiding hole (211), said second end (221) being arranged extending in the direction of gravity of the casing (100).

7. Reservoir according to claim 6, characterized in that the connection elbow (220) comprises a second orifice on the second end (221), which second orifice is directed away from the deflector hole (211).

8. The reservoir according to claim 1, characterized in that said inlet end (210) is provided with a plurality of said flow-guiding holes (211) at intervals.

9. Reservoir according to claim 1, characterized in that said first orifice (201) is directed away from said deflector orifice (211).

10. An air conditioning system comprising an accumulator, wherein the accumulator is according to any one of claims 1-9.

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