CN113701407A

CN113701407A - Drying assembly and refrigeration equipment

Info

Publication number: CN113701407A
Application number: CN202010441261.2A
Authority: CN
Inventors: 张明; 黄也贵; 朱啟武
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-11-26
Also published as: WO2021233744A1

Abstract

The embodiment of the invention provides a drying assembly and refrigeration equipment. The drying assembly includes: a drying duct adapted to dry a refrigerant; and a flow divider which is communicated with the drying pipe and divides the refrigerant from the drying pipe so that the refrigerant flows into the at least two output branches in a liquid phase state, a gas phase state or a gas-liquid two-phase state at the same time. Compared with the prior art, the drying assembly provided by the embodiment of the invention can enable the refrigerant to respectively flow to the at least two output branches in the same phase state at the same time, so as to ensure that the refrigerant is uniformly distributed in the at least two output branches, and further balance the refrigeration effect of each chamber in the refrigeration equipment.

Description

Drying assembly and refrigeration equipment

Technical Field

The invention relates to the technical field of household appliances, in particular to a drying assembly and refrigeration equipment.

Background

In the existing refrigeration equipment, a refrigerant is usually filtered by a drying tube and then is shunted by a plurality of capillary tubes, and finally enters different chambers for refrigeration. However, when the refrigerant enters the plurality of capillary tubes, the distribution of the refrigerant in each capillary tube is often unbalanced, and some capillary tubes are mainly liquid-phase refrigerant and some capillary tubes are mainly gas-phase refrigerant, so that the refrigerating effect of each compartment in the refrigerating equipment is unbalanced.

Disclosure of Invention

An object of the present invention is to provide an improved drying assembly and a refrigeration device.

The embodiment of the invention provides a drying component, which comprises: a drying duct adapted to dry a refrigerant; and a flow divider which is communicated with the drying pipe and divides the refrigerant from the drying pipe so that the refrigerant flows into the at least two output branches in a liquid phase state, a gas phase state or a gas-liquid two-phase state at the same time.

Optionally, the flow divider comprises an input end and at least two output ends, the input end is communicated with the drying pipe, and the at least two output ends are respectively communicated with the at least two output branches.

Optionally, at least a portion of at least one of the at least two outputs is formed by at least one of the at least two output branches.

Optionally, the cross-sections of at least two output branches are all the same.

Optionally, the flow divider further comprises a junction communicating with the input end and the at least two output ends simultaneously, refrigerant from the drying duct flowing into the junction through the input end and simultaneously flowing into the at least two output ends through the junction, respectively.

Alternatively, the volume of the junction is set small so that the refrigerant from the drying tube is in a liquid state, a gas state, or a gas-liquid homogeneous mixture state only when filling the junction.

Optionally, the volume of the intersection is less than or equal to 0.5 cubic centimeters.

Optionally, the input end of the flow divider is communicated with the drying pipe through an input branch.

Alternatively, the cross-sectional area or pipe diameter of the input branch or input end is set small enough to allow the refrigerant from the drying tube to flow through the input branch only in a liquid state, a gas state, or a gas-liquid uniform mixing state.

Optionally, the cross-sectional area is less than or equal to 0.09 pi square centimeters.

Optionally, the cross-sectional area is less than or equal to 0.01 pi square centimeters.

Optionally, the input is formed by at least a part of the input branch.

Optionally, the splitter comprises two output branches, the splitter having an inverted Y-shape or an inverted T-shape.

The embodiment of the invention also provides refrigeration equipment which comprises a refrigeration system, wherein the refrigeration system is internally provided with the drying assembly.

Compared with the prior art, the technical scheme of the embodiment of the invention has the beneficial effect. For example, the drying assembly provided by the embodiment of the present invention may enable the refrigerant to flow to the at least two output branches respectively in the same phase state at the same time, so as to ensure balanced distribution of the refrigerant in the at least two output branches, thereby balancing the refrigeration effect of each compartment in the refrigeration apparatus.

For another example, the input branches, the input ends of the flow splitters, and the junctions provided by the embodiments of the present invention may be set to be small enough such that the refrigerant from the drying duct is in a liquid state, a gas state, or a gas-liquid uniform mixing state without phase transition when flowing through the input branches, the input ends, and the junctions, so that the refrigerant may flow to at least two output branches in the same phase state at the same time.

For another example, the drying assembly has a simple structure, low cost and universality for refrigeration equipment.

Drawings

FIG. 1 is a schematic diagram of the construction of a refrigeration apparatus in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a refrigeration circuit of the refrigeration system in an embodiment of the present invention;

FIG. 3 is a schematic diagram of one configuration of a drying assembly in an embodiment of the invention;

FIG. 4 is a schematic view of another configuration of a drying assembly in an embodiment of the present invention;

FIG. 5 is a schematic view of one configuration of a flow diverter in an embodiment of the present invention;

FIG. 6 is a schematic view of another construction of a flow diverter in accordance with an embodiment of the present invention;

FIG. 7 is a schematic view of a first state of operation of the drying assembly in an embodiment of the present invention;

FIG. 8 is a schematic view of a second state of operation of the drying assembly in an embodiment of the present invention;

FIG. 9 is a schematic view of a third operating condition of the drying assembly in an embodiment of the present invention;

fig. 10 is a schematic view of a fourth operating condition of the drying assembly in an embodiment of the present invention.

Detailed Description

In the existing refrigeration equipment, when refrigerant enters a plurality of capillary tubes after being filtered by a drying tube, the refrigerant is often distributed unevenly in each capillary tube, liquid-phase refrigerant is mainly used in some capillary tubes, and gas-phase refrigerant is mainly used in some capillary tubes, so that the refrigeration effect of each chamber in the refrigeration equipment is unbalanced.

Different from the prior art, in the technical solution provided in the embodiment of the present invention, the drying assembly includes: a drying duct adapted to dry a refrigerant; and a flow divider which is communicated with the drying pipe and divides the refrigerant from the drying pipe so that the refrigerant flows into the at least two output branches in a liquid phase state, a gas phase state or a gas-liquid two-phase state at the same time.

Compared with the prior art, the drying assembly provided by the embodiment of the invention can enable the refrigerant to respectively flow to the at least two output branches in the same phase state at the same time, so as to ensure that the refrigerant is uniformly distributed in the at least two output branches, and further balance the refrigeration effect of each chamber in the refrigeration equipment.

In an embodiment of the invention, the refrigeration device may comprise at least two compartments. For convenience of explanation, two chambers are described below as an example.

In order to make the objects, features and advantages of the embodiments of the present invention more comprehensible, specific embodiments accompanied with figures are described in detail below.

Fig. 1 is a schematic structural diagram of a refrigeration apparatus in an embodiment of the present invention.

As shown in fig. 1, the refrigeration appliance 1 comprises a first compartment 10 and a second compartment 20.

In an embodiment of the invention, the refrigeration device 1 further comprises a refrigeration system.

Fig. 2 is a schematic diagram of a refrigeration circuit of the refrigeration system in an embodiment of the present invention.

As shown in fig. 2, the refrigeration system 30 includes a compressor 31, a condenser 32, an evaporator and drying assembly 40.

Specifically, the compressor 31, the condenser 32, the drying assembly 40, the evaporator, and the compressor 31 are connected in series and form a refrigeration circuit suitable for a refrigerant cycle.

In the refrigeration circuit, the compressor 31 is adapted to compress a low-temperature low-pressure gas refrigerant from the evaporator into a high-temperature high-pressure gas refrigerant, the condenser 32 is adapted to condense the high-temperature high-pressure gas refrigerant from the compressor 31 into a low-temperature high-pressure liquid refrigerant, the drying module 40 is adapted to remove moisture and impurities from the low-temperature high-pressure liquid refrigerant from the condenser 32 and throttle the low-temperature high-pressure liquid refrigerant into a low-temperature low-pressure liquid refrigerant, and the evaporator is adapted to evaporate the low-temperature low-pressure liquid refrigerant from the drying module 40 into a low-temperature low-pressure gas refrigerant.

In the process of evaporating the low-temperature low-pressure liquid refrigerant into the low-temperature low-pressure gas refrigerant, the low-temperature low-pressure liquid refrigerant can continuously absorb the heat inside the refrigeration preparation device 1, so that the cooling refrigeration inside the refrigeration device 1 is realized.

In some specific examples, the evaporators comprise a first evaporator 33 adapted to cool down the first compartment 10 and a second evaporator 34 adapted to cool down the second compartment 20. Both the first evaporator 33 and the second evaporator 34 are connected in parallel and are commonly connected in series between the drying assembly 40 and the compressor 31.

The refrigeration circuit may thus comprise a first refrigeration circuit suitable for the desuperheating refrigeration of the first compartment 10 and a second refrigeration circuit suitable for the desuperheating refrigeration of the second compartment 20. The first refrigeration circuit is formed by connecting a compressor 31, a condenser 32, a drying assembly 40, a first evaporator 33 and the compressor 31 in sequence, and the second refrigeration circuit is formed by connecting the compressor 31, the condenser 32, the drying assembly 40, a second evaporator 34 and the compressor 31 in sequence.

In the process of evaporating the low-temperature low-pressure liquid refrigerant in the first refrigeration circuit into the low-temperature low-pressure gas refrigerant, the heat inside the first compartment 10 can be continuously absorbed, so that the cooling refrigeration inside the first compartment 10 is realized.

The low-temperature low-pressure liquid refrigerant in the second refrigeration circuit can continuously absorb heat inside the second compartment 20 in the process of evaporating the low-temperature low-pressure liquid refrigerant into a low-temperature low-pressure gas refrigerant, so that cooling refrigeration inside the second compartment 20 is realized.

Referring to fig. 2, the refrigeration system 30 may further include a valve connected between the drying assembly 40 and the evaporator. The valve is adapted to regulate the flow of refrigerant through the drying assembly 40 to the evaporator and/or to control the opening and closing of the refrigeration circuit.

In some specific examples, the valves may include a first valve 35 disposed in the first refrigeration circuit and a second valve 36 disposed in the second refrigeration circuit.

Fig. 3 is a schematic view showing one configuration of a drying module according to an embodiment of the present invention, and fig. 4 is a schematic view showing another configuration of the drying module according to the embodiment of the present invention.

As shown in fig. 3 and 4, a drying assembly 40 provided by an embodiment of the present invention includes a drying duct 41 and a flow divider 42.

Specifically, the drying agent 411 is provided in the drying pipe 41. The desiccant 411 is adapted to dry the refrigerant from the condenser 32 and remove impurities.

The flow divider 42 is in communication with the drying duct 41, and is adapted to divide the refrigerant from the drying duct 41 and to allow the refrigerant to simultaneously flow into at least two output branches in a liquid phase, a gas phase, or a gas-liquid two-phase state, respectively.

Referring to fig. 3 and 4, the flow divider 42 includes an input end 421 and at least two output ends communicating with each other. The input end 421 is connected to the drying pipe 41, and at least two output ends are connected to at least two output branches respectively.

In some specific examples, at least a portion of at least one of the at least two outputs may be formed by at least one of the at least two output branches.

For example, each output may be integrally formed by an output branch communicating therewith. That is, one output end and one output branch which are communicated with each other may be the same pipeline which is integrally formed.

In other preferred embodiments, the cross-sections of at least two of the output branches are the same. Therefore, the friction resistance of the pipe wall encountered by the refrigerant flowing through the at least two output branches is the same, so that different influences of the friction resistance of the pipe wall on the flow speed of the refrigerant flowing through the at least two output branches are avoided.

In the embodiment of the present invention, the specific number of the at least two output ports and the specific number of the at least two output branches are related to the number of compartments of the refrigeration device 1.

Specifically, each of the at least two output ends is connected to one output branch, each of the at least two output branches is connected to one evaporator, and each evaporator is suitable for cooling and refrigerating one compartment of the refrigeration apparatus 1.

Referring to fig. 3, in some specific examples, the at least two output branches include a first output branch 44 and a second output branch 45. The at least two outputs include a first output 423 and a second output 424. The first output 423 communicates with the first output branch 44. The second output terminal 424 communicates with the second output branch 45.

Referring to fig. 4, in other specific examples, the at least two output branches include a first output branch 44, a second output branch 45, and a third output branch 46. The at least two outputs include a first output 423, a second output 424, and a third output 425. The first output 423 communicates with the first output branch 44, the second output 424 communicates with the second output branch 45, and the third output 425 communicates with the third output branch 46.

For ease of illustration and understanding, the following description will be given by way of example of a drying assembly comprising two outputs.

Fig. 5 is a schematic view of a diverter according to an embodiment of the present invention.

As shown in fig. 5, the shunt 42 including both the first output terminal 423 and the second output terminal 424 may have an inverted Y-shape.

FIG. 6 is a schematic view of another configuration of a flow diverter in an embodiment of the present invention.

As shown in fig. 6, the flow divider 42 including both the first output end 423 and the second output end 424 may also have an inverted T-shape.

With continued reference to fig. 3, the drying assembly 40 may also include an input branch 43. Both ends of the input branch 43 are respectively communicated with the input ends 421 of the drying pipe 41 and the splitter 42. The input branch 43 is adapted to allow the refrigerant from the drying duct 41 to flow into the flow divider 42 through the input branch 43.

In some specific examples, the input 421 of the shunt 42 may also be formed by at least part of the input branch 43.

For example, input 421 of splitter 42 may be formed entirely through input branch 43. That is, the input end 421 and the input branch 43 communicating with each other may be the same pipe integrally formed.

Ideally, the refrigerant flowing through the drying duct 41 should be maintained in a single liquid state. However, in actual operation, the refrigerant flowing through the drying duct 41 may be in a gaseous state due to insufficient condensation, insufficient refrigerant, and the like.

In the embodiment of the present invention, the cross-sectional area or the pipe diameter of the input branch 43 is set small so that the refrigerant from the drying duct 41 is in a liquid state, a gas state, or a gas-liquid uniform mixing state only when flowing through the input branch 43.

In some preferred embodiments, the cross-sectional area of the input branch 43 may be less than or equal to 0.09 pi cm.

Further, the cross-sectional area of input branch 43 may be less than or equal to 0.01 π square centimeters.

In the embodiment of the present invention, the cross-sectional area or the pipe diameter of the input end 421 is also set small so that the refrigerant from the drying duct 41 is only in a liquid state, a gas state, or a gas-liquid uniform mixing state when flowing through the input end 421.

In some preferred embodiments, the cross-sectional area of the input end 421 may be less than or equal to 0.09 pi cm.

Further, the cross-sectional area of the input end 421 may be less than or equal to 0.01 π square centimeters.

With continued reference to fig. 3, the flow diverter 42 also includes a junction 422 in communication with both the input 421, the first output 423, and the second output 424. The refrigerant from the drying duct 41 flows into the junction 422 through the input end 421, and simultaneously flows into the first output end 423 and the second output end 424 through the junction 422, respectively.

In the present embodiment, the volume of the intersection 422 is set so small that the refrigerant 50 from the drying duct 41 is only in a liquid state, a gas state, or a gas-liquid uniform mixing state when filling the intersection 422.

In some preferred embodiments, the volume of intersection 422 may be set to less than or equal to 0.5 cubic centimeters.

By adopting the technical scheme provided by the embodiment of the invention, the refrigerant from the drying pipe 41 is only in a liquid state, a gas state or a gas-liquid uniform mixing state when flowing through the input branch 43, the input end 421 and the intersection 422, and the phase state conversion does not occur, so that the refrigerant can simultaneously flow to at least two output branches in the same phase state respectively, the refrigerant is ensured to be distributed in the at least two output branches in a balanced manner, and the refrigeration effect of each chamber in the refrigeration equipment 1 is further balanced.

In the embodiment of the present invention, the same phase state includes a single liquid state, a single gas state, or a gas-liquid mixed state.

In the embodiment of the present invention, the transition of the phase state means that the refrigerant is changed from the liquid state to the gas state, or the refrigerant is changed from the gas state to the liquid state.

Fig. 7 to 10 are schematic views of four different operating states of the drying assembly in the embodiment of the present invention. Fig. 7 to 10 may show schematic timing diagrams of the drying assembly 40 in a continuous operation state.

In some specific examples, the refrigerant 50 in the refrigeration circuit decreases in order from the example shown in fig. 7 to the example shown in fig. 10.

In the embodiment of the present invention, when the refrigerant in the refrigeration circuit is sufficient, the refrigerant 50 flowing into the drying duct 41 is also sufficient. When the refrigerant in the refrigeration circuit is insufficient, the refrigerant 50 flowing into the drying duct 41 is also insufficient.

Referring to fig. 7, when the refrigeration circuit starts to operate, the refrigerant 50 is dried and removed of impurities by the drying pipe 41 and then flows into the input branch 23.

In the embodiment of the present invention, since the cross-sectional area or the pipe diameter of the input branch 43 can be set to be small enough, the refrigerant from the drying pipe 41 can be in a liquid state, a gas state or a gas-liquid uniform mixing state without phase transition when flowing through the input branch 43.

Referring to fig. 8, the refrigerant 50 from the drying duct 41 flows through the input branch 43 and then sequentially enters the input end 421 and the junction 422.

In the embodiment of the present invention, since the cross-sectional area or the pipe diameter of the input end 421 can be set to be small enough, the refrigerant from the drying pipe 41 can be in a liquid state, a gas state, or a gas-liquid uniform mixing state without phase transition when flowing through the input end 421.

Referring to fig. 9, the refrigerant 50 from the drying duct 41 flows through the input branch 23 and the input end 421 in this order, enters the junction 422, and fills the junction 422.

In the embodiment of the present invention, since the volume of the intersection 422 may be set small enough, the refrigerant 50 from the drying duct 41 may be in a liquid state, a gas state, or a gas-liquid homogeneous mixture state only when filling the intersection 422, and a phase transition may not occur.

Referring to fig. 10, the refrigerant 50 flowing through the intersection 422 simultaneously flows into the first and

second outlet branches

44 and 45, respectively, in the same phase.

In this way, it is ensured that the refrigerant 50 is distributed evenly in the first outlet branch 44 and the second outlet branch 45, so that the refrigeration effect of the first compartment 10 and the second compartment 20 in the refrigeration device 1 is equalized.

While specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless differently stated. In particular implementations, the features of one or more dependent claims may be combined with those of the independent claims as technically feasible according to the actual requirements, and the features from the respective independent claims may be combined in any appropriate manner and not merely by the specific combinations enumerated in the claims.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A drying assembly (40), comprising:

a drying duct (41) adapted to dry the refrigerant (50);

and a flow divider (42) that communicates with the drying duct (41) and divides the refrigerant (50) from the drying duct (41) such that the refrigerant (50) flows into at least two output branches (44, 45, 46) in a liquid phase, a gas phase, or a gas-liquid two-phase state at the same time.

2. Drying assembly (40) according to claim 1, wherein the diverter (42) comprises an input (421) and at least two outputs (423, 424, 425) communicating with each other, the input (421) communicating with the drying duct (41), the at least two outputs (423, 424, 425) communicating with the at least two output branches (44, 45, 46), respectively.

3. Drying assembly (40) according to claim 2, wherein at least a part of at least one outlet (423, 424, 425) of the at least two outlets (423, 424, 425) is formed by at least one outlet branch (44, 45, 46) of the at least two outlet branches (44, 45, 46).

4. Drying assembly (40) according to any one of claims 1 to 3, wherein the cross-sections of the at least two output branches (44, 45, 46) are all identical.

5. The drying assembly (40) of claim 2, wherein the flow diverter (42) further includes a junction (422) in communication with both the input end (421) and the at least two output ends (423, 424, 425), the refrigerant (50) from the drying tube (41) flowing through the input end (421) into the junction (422) and through the junction (422) into the at least two output ends (423, 424, 425), respectively, simultaneously.

6. The drying assembly (40) of claim 5, wherein the volume of the intersection (422) is set small enough such that refrigerant (50) from the drying tube (41) fills the intersection (422) in a liquid state, a gaseous state, or a homogeneous gas-liquid mixture.

7. The drying assembly (40) of claim 6, wherein the intersection (422) has a volume of less than or equal to 0.5 cubic centimeters.

8. Drying assembly (40) according to any one of claims 5 to 7, wherein the input end (421) of the diverter (42) communicates with the drying duct (41) through an input branch (43).

9. Drying assembly (40) according to claim 8, wherein the cross-sectional area or pipe diameter of the input branch (43) or the input end (421) is set so small that the refrigerant (50) from the drying tube (41) flows through it only in liquid state, gaseous state or homogeneous gas-liquid mixture state.

10. The drying assembly (40) of claim 9, wherein the cross-sectional area is less than or equal to 0.09 pi square centimeters.

11. The drying assembly (40) of claim 10, wherein the cross-sectional area is less than or equal to 0.01 pi square centimeters.

12. Drying assembly (40) according to any of claims 8 to 11, wherein the input (421) is formed by at least a portion of the input branch (43).

13. Drying assembly (40) according to any one of claims 1 to 12, wherein the diverter (42) comprises two outlet branches (44, 45), the diverter (42) having an inverted Y-shape or an inverted T-shape.

14. Refrigeration device (1) comprising a refrigeration system (30), characterized in that a drying assembly (40) according to any one of claims 1 to 13 is provided in the refrigeration system (30).