CN217876562U - Heat regenerator, refrigerating system and refrigerating equipment - Google Patents

Abstract

The application discloses regenerator, refrigerating system and refrigeration plant. The exhaust pipe is arranged in the muffler in a penetrating mode and comprises an exhaust inlet end, an exhaust outlet end and an exhaust passage located between the exhaust inlet end and the exhaust outlet end, the exhaust passage is spiral, and the spiral inner diameter of the exhaust passage is different in the direction from the exhaust inlet end to the exhaust outlet end. In regenerator, refrigerating system and refrigeration plant of this application, because in the blast pipe wears to locate the return air pipe, the exhaust passage of blast pipe is the heliciform, and in the direction of exhaust inlet end to exhaust outlet end, exhaust passage's spiral internal diameter is different. Therefore, when the return air pipe returns air, the return air pipe is disturbed by the exhaust passage, so that the return air can be dispersed on the exhaust pipe, the heat exchange area of the return air in the return air pipe and the exhaust pipe is further increased, and therefore the heat exchange efficiency of the heat regenerator is improved.

Description

Heat regenerator a refrigerating system and refrigerating equipment

Technical Field

The present application relates to the field of refrigeration technologies, and more particularly, to a heat regenerator, a refrigeration system having the heat regenerator, and a refrigeration apparatus having the refrigeration system.

Background

In the refrigeration equipment with a refrigeration system on the market at present, a regenerator generally adopts the laminating heat transfer of a capillary tube and an air return heat exchange tube to solve the problem of heat return, the energy efficiency is improved, the problems of condensation and the like are solved, and the heat exchange efficiency is low because thermal resistance exists in two pipelines of the capillary tube and the air return heat exchange tube when the two pipelines are laminated.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a heat regenerator, a refrigerating system and refrigerating equipment.

The heat regenerator that this application embodiment provided includes muffler and blast pipe. The exhaust pipe is arranged in the muffler in a penetrating mode and comprises an exhaust inlet end, an exhaust outlet end and an exhaust passage located between the exhaust inlet end and the exhaust outlet end, the exhaust passage is spiral, and the spiral inner diameter of the exhaust passage is different in the direction from the exhaust inlet end to the exhaust outlet end.

In certain embodiments, the spiral inner diameter of the exhaust passage has a tendency to vary from large to small or from small to large in a direction from the exhaust gas inlet end to the exhaust gas outlet end.

In some embodiments, the exhaust gas passage is provided in plurality in a direction from the exhaust gas inlet end to the exhaust gas outlet end, and the change tendencies of the spiral inner diameters of the adjacent exhaust gas passages are opposite or the same.

In some embodiments, the spiral inner diameter of the exhaust passage has a trend of first decreasing from larger to smaller and then decreasing to larger in a direction from the exhaust gas inlet end to the exhaust gas outlet end.

In some embodiments of the present invention, the substrate is, the air return pipe comprises a cylinder body, an air return inlet part which protrudes and extends from the outer wall of the cylinder body, and an air return outlet part which protrudes and extends from the outer wall of the cylinder body; the exhaust inlet end extends out of the air return outlet portion to the outside of the air return pipe, and the exhaust outlet end extends out of the air return inlet portion to the outside of the air return pipe.

In some embodiments, the side of the return air outlet part is provided with a through hole, and the exhaust inlet end extends out of the return air pipe from the through hole and is welded to the through hole in a sealing mode; the side surface of the air return inlet part is provided with a through hole, the exhaust outlet end extends out of the through hole to the outside of the muffler and is welded to the through hole in a sealing mode.

In some implementations in the mode of the method, the first step, at least part of the exhaust pipe close to the air return inlet part is a capillary pipe.

The refrigeration system provided by the embodiment of the application comprises the regenerator in any one of the above embodiments. The heat regenerator comprises that a gas return pipe and an exhaust pipe. The exhaust pipe is arranged in the muffler in a penetrating mode and comprises an exhaust inlet end, an exhaust outlet end and an exhaust passage located between the exhaust inlet end and the exhaust outlet end, the exhaust passage is spiral, and the spiral inner diameter of the exhaust passage is different in the direction from the exhaust inlet end to the exhaust outlet end.

In some embodiments, the refrigeration system further comprises a compressor, a condenser, an evaporator, and a capillary tube, an outlet of the compressor is in communication with an inlet of the condenser, an outlet of the condenser is in communication with a discharge gas inlet end of the discharge tube, the exhaust outlet end of the exhaust pipe is communicated with the inlet of the capillary, the outlet of the capillary is communicated with the inlet of the evaporator, the outlet of the evaporator is communicated with the air return inlet part, and the air return outlet part is communicated with the inlet of the compressor.

The embodiment of the present application provides a refrigeration apparatus comprises the refrigeration system of any of the above embodiments.

The embodiment of the application provides a further refrigeration equipment the regenerator comprises the regenerator in any one of the above embodiments.

In regenerator, refrigerating system and the refrigeration plant of this application, because in the blast pipe wears to locate the return air pipe, the exhaust passage of blast pipe is the heliciform, and in the direction of exhaust inlet end to exhaust outlet end, exhaust passage's spiral internal diameter is different. Therefore, when the air return pipe returns air, the air return pipe is disturbed by the exhaust channel, so that the air return can be dispersed on the exhaust pipe, the heat exchange area between the air return pipe and the exhaust pipe is further increased, and the heat exchange efficiency of the heat regenerator is improved.

Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 shows an embodiment of the present application the external structure of the regenerator is schematically shown;

FIG. 2 is the regenerator of FIG. 1 the internal structure of (1);

FIG. 3 is an exploded schematic view of the regenerator of FIG. 1;

fig. 4 is a schematic structural view of a regenerator according to another embodiment of the present application;

FIG. 5 is an exploded schematic view of the regenerator shown in FIG. 4;

fig. 6 is a schematic view of a regenerator of another embodiment of the present application;

FIG. 7 is a schematic structural view of a regenerator in accordance with yet another embodiment of the present application;

FIG. 8 is a schematic view of the construction of the return tube of the regenerator of FIG. 7;

FIG. 9 is a schematic diagram of a refrigeration system in certain embodiments of the present application;

fig. 10 is a schematic diagram of a refrigeration unit in certain embodiments of the present application.

Description of the main element symbols:

a refrigeration apparatus 1000;

a refrigeration system 100; a heat regenerator 10; the air return pipe 11, the cylinder body 111, the air return inlet part 112, the air return outlet part 113, the through hole 1121 and the through hole 1131; an exhaust pipe 12, an exhaust inlet port 121, an exhaust outlet port 122, an exhaust passage 123; a compressor 20; a condenser 30; an evaporator 40; a capillary tube 50.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, it is worth mentioning that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of the description of the embodiments of the present application, but do not indicate or imply that the device or element referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the embodiments of the present application. The features defined as "first", "second" may explicitly or implicitly include one or more of the features described. In the description of the embodiments of the present application, "a plurality" means two or more unless explicitly defined otherwise.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, a fixed connection, a detachable connection, or an integral connection unless otherwise explicitly stated or limited; may be mechanically, electrically or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. Specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

In embodiments of the present application, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "under" a first feature includes both directly beneath and obliquely beneath the second feature, or simply that the first feature level is less than the second feature.

The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the application. In order to simplify the disclosure of the embodiments of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and, and is not intended to limit the present application. Embodiments of the present application may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. Embodiments of the present application provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 3, a regenerator 10 according to an embodiment of the present disclosure includes a return pipe 11 and an exhaust pipe 12. The exhaust pipe 12 is inserted into the muffler 11, the exhaust pipe 12 includes an exhaust inlet end 121, an exhaust outlet end 122 and an exhaust passage 123 located between the exhaust inlet end 121 and the exhaust outlet end 122, the exhaust passage 123 is spiral, and the spiral inner diameters of the exhaust passage 123 are different in a direction from the exhaust inlet end 121 to the exhaust outlet end 122.

In the regenerator 10 of the present application, because the exhaust pipe 12 is disposed through the muffler 11, the exhaust passage 123 of the exhaust pipe 12 is spiral, and the spiral inner diameter of the exhaust passage 123 is different in the direction from the exhaust inlet end 121 to the exhaust outlet end 122. Therefore, when the return air is returned from the return air pipe 11, the disturbance of the exhaust channel 123 is applied, so that the return air can be dispersed on the exhaust pipe 12, and the heat exchange area between the exhaust air in the return air pipe 11 and the exhaust pipe 12 is further increased, thereby increasing the heat exchange efficiency of the regenerator 10.

The present application is described in further detail below with reference to the drawings attached hereto.

Referring to fig. 1, regenerator 10 includes a return pipe 11 and an exhaust pipe 12. Wherein, the exhaust pipe 12 is arranged in the muffler 11 in a penetrating way. It can be understood that when the regenerator 10 is in operation, the return air in the return air pipe 11 can exchange heat and cold with the exhaust air in the exhaust pipe 12 located in the return air pipe 11, thereby improving the heat exchange efficiency of regenerator 10.

Referring to fig. 2 and 3, the exhaust pipe 12 includes an exhaust inlet end 121, an exhaust outlet end 122 and an exhaust passage 123. Wherein the exhaust passage 123 is located between the exhaust gas inlet end 121 and the exhaust gas outlet end 122. It is understood that, when the exhaust pipe 12 is operated, the exhaust gas passes through the exhaust gas inlet port 121, the exhaust gas passage 123, and the exhaust gas outlet port 122 in this order, and is finally discharged from the exhaust gas outlet port 122.

Specifically, referring to fig. 3, the return air pipe 11 may include a barrel 111, a return air inlet 112 and a return air outlet 113.

The air return inlet 112 and the air return outlet 113 both extend from the outer wall of the barrel 111 in a protruding manner in a direction away from the barrel 111. The return air outlet 113 communicates with the inlet of the compressor 10, and the return air inlet 112 communicates with the outlet of the evaporator 40 (shown in fig. 9). Thus, the gas discharged from the evaporator 40 enters the return pipe 11 through the return inlet 112 to exchange heat with the discharge pipe 12 in the return pipe 11, and is discharged from the return outlet 113 to the inside of the compressor 10 after the heat exchange, so as to complete the refrigeration cycle of the refrigeration system 100.

Referring again to fig. 2 and 3, the exhaust inlet port 121 extends from the return air outlet portion 113 to the outside of the return air pipe 11, and the exhaust outlet port 122 extends from the return air inlet portion 112 to the outside of the return air pipe 11. It is understood that the exhaust gas inlet port 121 and the return gas outlet port 113 are located at the same end of the regenerator 10, while the exhaust gas outlet port 122 and the return gas inlet port 112 are located at the same end of the regenerator 10.

As shown in fig. 3, a through hole 1131 is formed on a side surface of the return air inlet 112, and a through hole 1121 is formed on a side surface of the return air outlet 113. Referring to fig. 2, when the exhaust inlet end 121 extends from the return air outlet 113 to the outside of the return air pipe 11, the exhaust inlet end 121 extends from the through hole 1121 to the outside of the return air pipe 11 and is hermetically welded to the through hole 1121. When the exhaust outlet 122 extends from the air return inlet 112 to the outside of the air return pipe 11, the exhaust outlet 122 extends from the through hole 1131 to the outside of the air return pipe 11 and is hermetically welded to the through hole 1131, so that the exhaust pipe 12 can be completely fixed on the air return pipe 11, and the exhaust pipe 12 is prevented from being separated from the air return pipe 11, thereby ensuring the stability of the heat regenerator 10. Meanwhile, the air tightness can be guaranteed in a sealing welding mode, and the heat exchange efficiency is improved.

In some embodiments, an end surface (a surface far away from the barrel 111) of the return air inlet 112 may be provided with a return air inlet, an end surface (a surface far away from the barrel 111) of the return air outlet 113 may be provided with a return air outlet, the exhaust inlet end 121 may protrude to the outside of the return air pipe 11 through the return air outlet, and the exhaust outlet end 122 may protrude to the outside of the return air pipe 11 through the return air inlet.

Further, as shown in fig. 2, it can be seen that the exhaust-gas inlet port 121 and the exhaust-gas outlet port 122 are opposed, and the return-gas outlet portion 113 and the return-gas inlet portion 112 are opposed. It can be understood that the exhaust direction of the return pipe 11 and the exhaust direction of the exhaust pipe 12 are opposite, and as can be seen from fig. 1 and fig. 2, the return direction of the return pipe 11 flows from the return inlet 112 to the return outlet 113 from bottom to top, and the exhaust direction of the exhaust pipe 12 flows from the inlet 121 to the outlet 122 from top to bottom. In this way, the heat exchange efficiency of regenerator 10 can be further improved.

In some embodiments, at least a portion of the exhaust pipe 12 proximate to the return air inlet portion 112 is a capillary tube, and as shown in fig. 1 and 2, the exhaust pipe 12 proximate to the return air inlet portion 112 is an exhaust outlet end 122 of the exhaust pipe 12. That is, the exhaust outlet end 122 may be a capillary tube, or the exhaust outlet end 122 and at least a portion of the exhaust pipe 12 connected to the exhaust outlet end 122 may be capillary tubes, so that when the exhaust gas of the condenser 30 (as shown in fig. 9) flows from the exhaust inlet end 121 of the exhaust pipe 12 to the exhaust outlet end 122, the exhaust outlet end 122 may perform a throttling operation to reduce the pressure of the exhaust gas flowing out from the exhaust outlet end 122 because the exhaust outlet end 122 is a capillary tube.

Further, as shown in fig. 9, when at least a portion of the exhaust pipe 12 near the return air inlet 112 is a capillary tube, the exhaust pipe 12 can also perform throttling operation on the exhaust gas when the exhaust gas of the condenser 30 is exhausted to the outside of the regenerator 10, so that the capillary tube 50 is not required to be additionally disposed in the refrigeration system 100, that is, the exhaust outlet end 122 of the exhaust pipe 12 is directly connected to the evaporator 40.

Referring to fig. 3, the exhaust channel 123 is spiral, so that the overall length of the exhaust pipe 12 in the return pipe 11 is longer, thereby improving the heat exchange efficiency of the return pipe 10.

Specifically, the spiral inner diameter of the exhaust passage 123 is different in the direction from the exhaust inlet end 121 to the exhaust outlet end 122, so that when the return air pipe 11 returns air, the return air is disturbed by the exhaust passage 123, so that the return air can be dispersed on the exhaust pipe 12, the heat exchange area between the return air in the return air pipe 11 and the exhaust pipe 12 is further increased, and the heat exchange efficiency of the regenerator 10 is improved.

In one embodiment, as shown in fig. 3, the spiral inside diameter of the exhaust passage 123 in the direction from the exhaust-gas inlet end 121 to the exhaust-gas outlet end 122 tends to vary from small to large, i.e., the spiral inside diameter of the exhaust passage 123 decreases closer to the exhaust-gas inlet end 121. Similarly, the trend of the spiral inner diameter of the exhaust passage 123 may also be from large to small in the direction from the exhaust inlet end 121 to the exhaust outlet end 122, i.e., the spiral inner diameter of the exhaust passage 123 is larger closer to the exhaust inlet end 121. Thus, when the return air pipe 11 returns air, the return air will be dispersed toward the pipe wall of the exhaust pipe 12 in the flowing direction of the return air due to the different spiral inner diameters of the exhaust passage 123, so that the contact area between the return air and the exhaust pipe 12 is increased, and the heat exchange efficiency of the heat regenerator 10 is increased.

In some embodiments, please refer to fig. 4 and 5, the number of the exhaust passages 123 may also be multiple, such as 2, 3, 4 and more, in the direction from the exhaust inlet end 121 to the exhaust outlet end 122, and the spiral inner diameters of the adjacent exhaust passages 123 have opposite trend. As shown in fig. 5, the spiral inner diameters of the adjacent two exhaust passages 123 in the direction from the exhaust inlet end 121 to the exhaust outlet end 122 are first large to small, and then small to large.

Similarly, the spiral inner diameters of the two adjacent exhaust passages 123 in the direction from the exhaust inlet end 121 to the exhaust outlet end 122 may also be first smaller to larger and then smaller to larger. Like this, when muffler 11 carries out the return air, the return air can be because of the change of the multiple spiral internal diameter of exhaust passage 123 to make the flow direction of return air more dispersedly flow to on the pipe wall of blast pipe 12, thereby improved the area of contact of return air and blast pipe 12, in order to improve regenerator 10's heat exchange efficiency.

As shown in fig. 6, the trend of change in the spiral inner diameters of the adjacent exhaust passages 123 may also be the same in the direction from the exhaust-gas inlet end 121 to the exhaust-gas outlet end 122. That is, the spiral inner diameters of the adjacent two exhaust passages 123 are each small to large in the direction from the exhaust inlet end 121 to the exhaust outlet end 122. Like this, when muffler 11 carries out the return air, the return air can be because of the change of the multiple spiral internal diameter of exhaust passage 123 to make the flow direction of return air more dispersedly flow to on the pipe wall of blast pipe 12, thereby improved the area of contact of return air and blast pipe 12, in order to improve regenerator 10's heat exchange efficiency.

In addition, referring to fig. 6, a throat 1111 may be opened on the barrel 111 of the return pipe 11, and the exhaust channel 123 may be fixed on the inner wall 1112 of the return pipe 11 through the throat 111, so as to prevent the exhaust pipe 12 inside the return pipe 11 from vibrating, thereby preventing the heat regenerator 10 from generating noise during heat exchange, and improving the user experience.

Specifically, the barrel 111 may further include a first sub-barrel 1113 and a second sub-barrel 1114. The number of the first sub-barrel 1113 may be plural, and the number of the second sub-barrel 1114 is at least one.

As shown in fig. 6, the number of the second sub-barrels 1114 is 1, the number of the first sub-barrels 1113 is 2, and the second sub-barrel 1114 is located between the two first sub-barrels 1113 to communicate the two first sub-barrels 1113. For another example, when the number of the first sub-barrels 1113 is 3, the number of the second sub-barrels 1114 is two to space three first sub-barrels 1113. That is, the first sub-barrel 1113 and the second sub-barrel 1114 are alternately connected.

More specifically, the outer wall dimension of the second sub-barrel 1114 is smaller than the outer wall dimension of the first sub-barrel 1113. Wherein, the first sub-barrel 1113 may be a cylinder, a cube, etc., and the shape of the second sub-barrel 1114 conforms to the shape of the first sub-barrel 1113.

In one embodiment, when the first sub-barrel 1113 and the second sub-barrel 1114 are both cubic in shape, then the length, width, and height of the second sub-barrel 1114 are each less than the length, width, and height of the first sub-barrel 1113.

In yet another embodiment, when the first sub-barrel 1113 and the second sub-barrel 1114 are both cylindrical in shape, then the outside diameter of the bottom surface of the second sub-barrel 1114 is less than the outside diameter of the bottom surface of the first sub-barrel 1113, and the height of the second sub-barrel 1114 is less than the height of the first sub-barrel 1113. Referring to fig. 6, it can be seen that the necking 1111 of the outer wall of the barrel 111 can be regarded as being formed by the second sub-barrel 1114 and the plurality of first sub-barrels 1113 together.

Referring to fig. 6, the exhaust tube 12 disposed in the first sub-barrel 1113 is spiral, and the exhaust tube 12 disposed in the second sub-barrel 1114 is elongated. As shown in fig. 6, the elongated exhaust pipe 12 may be fixed to the inner wall 1112 located in the second sub-barrel 1114, that is, the elongated exhaust pipe 12 is fixed to the throat 1111, so that the exhaust pipe 12 can be fixed in the air return pipe 11, thereby avoiding the exhaust pipe 12 from vibrating when the heat regenerator 10 works, thereby reducing noise and improving user experience.

In addition, the exhaust pipe 12 in the first sub-cylinder 1113 may also interfere with the inner wall 1112 at the first sub-cylinder 1113. Wherein, because the exhaust pipe 12 in the first sub-barrel 1113 is the heliciform, consequently, the exhaust pipe 12 in the first sub-barrel 1113 still can contradict with the inner wall 1112 of first sub-barrel 1113 department, the biggest spiral diameter of the exhaust pipe 12 in the first sub-barrel 1113 is slightly less than or equals first sub-barrel 1113's internal diameter promptly, alright make the exhaust pipe 12 in the first sub-barrel 1113 just block in first sub-barrel 1113, thereby further fixed exhaust pipe 12, in order to avoid at regenerator 10 during operation, exhaust pipe 12 vibrates, thereby noise reduction, user's use experience is improved.

On the other hand, the exhaust pipe 12 collides with the inner wall 1112 at the first sub-barrel 1113, that is, the exhaust pipe 12 is in full contact with the return pipe 11, and the heat exchange efficiency of the heat regenerator 10 can be further improved. On the other hand, the spiral arrangement of the exhaust pipe 12 in the first sub-barrel 1113 can make the overall length of the exhaust pipe 12 in the return pipe 11 longer, thereby improving the heat exchange efficiency of the return pipe 10.

It should be noted that, the barrel 111 of the return air pipe 11 is provided with the reducing port 1111, so that when the return air pipe 11 is in operation, in the process that the gas discharged from the evaporator 40 flows to the return air outlet 113 through the return air inlet 112, the gas discharged from the evaporator 40 passes through the reducing port 1111, so that at the position of the reducing port 1111, the gas discharged from the evaporator 40 is throttled by the reducing port 1111, and then after passing through the reducing port 1111, the flow rate of the gas discharged from the evaporator 40 is restored, so that the pulse frequency of the gas discharged from the evaporator 40 inside the return air pipe 11 is changed, thereby reducing the refrigerant noise generated by the gas discharged from the evaporator 40 inside the return air pipe 11, that is, reducing the noise generated by the heat regenerator 10, and improving the user experience.

In some embodiments, please refer to fig. 7, the return air inlet 112 of the return air pipe 11 can also extend into the inner portion of the barrel 111.

Specifically, referring to fig. 8, an opening 1122 is disposed at an end of the air return inlet 112 located inside the barrel 111, and the opening 1122 includes a first flow guide 11221 and a second flow guide 11222. When the gas exhausted from the evaporator 40 flows to the return air inlet 112, the first and second flow guiding portions 11221 and 11222 can work together to guide the gas exhausted from the evaporator 40 to the inner wall 1112 of the barrel 111, and according to the above, the exhaust pipe 12 is fixed to the inner wall 1112 of the barrel 111, therefore, the opening 1122 can guide the gas exhausted from the evaporator 40 to the exhaust pipe 12 through the first and second flow guiding portions 11221 and 11222, so that the heat exchange effect of the return air pipe 11 and the exhaust pipe 12 can be improved, that is, the heat exchange effect of the heat regenerator 10 is improved.

Referring to fig. 9, the present embodiment provides a refrigeration system 100, and the refrigeration system 100 includes the heat regenerator 10, the compressor 20, the condenser 30, the evaporator 40, and the capillary tube 50 of any of the above embodiments.

The outlet of the compressor 20 is communicated with the inlet of the condenser 30, the outlet of the condenser 30 is communicated with the exhaust inlet end 121 of the exhaust pipe 12, the exhaust outlet end 122 of the exhaust pipe 12 is communicated with the inlet of the capillary tube 50, the outlet of the capillary tube 50 is communicated with the inlet of the evaporator 40, the outlet of the evaporator 40 is communicated with the return air inlet portion 112 of the return air pipe 11, and the return air outlet portion 113 is communicated with the inlet of the compressor 20.

Referring to fig. 2, it can be understood that the gas discharged from the evaporator 40 flows from the return pipe 11 to the compressor 20 from the bottom to the top. The gas discharged from the condenser 30 flows from the exhaust pipe 12 into the capillary 50 from the top to the bottom. Namely, the return direction of the return pipe 11 is opposite to the exhaust direction of the exhaust pipe 12, to improve the heat exchange efficiency of regenerator 10.

With continued reference to fig. 9, the following brief description of the operation of the refrigeration system 100 is provided:

the compressor 20 can suck normal temperature gas and compress the normal temperature gas to convert the normal temperature gas into high temperature and high pressure gas, then the high temperature and high pressure gas passes through the condenser 30 to be converted into medium temperature and high pressure liquid, and enters the inside of the exhaust pipe 12 from the inlet end 121 of the exhaust pipe 12, and is discharged into the capillary tube 50 through the outlet end 122 of the exhaust pipe 12 to be converted into low temperature and low pressure liquid, and then the low temperature and low pressure liquid passes through the evaporator 40 to be converted into low temperature and low pressure return air, which enters the inside of the return air pipe 11 through the return air inlet 112, and after performing cold and heat exchange with the gas inside the exhaust pipe 12, the return air coming out of the return air outlet 113 enters the compressor 10 to complete the refrigeration process of the refrigeration system 100.

Referring to fig. 2 and fig. 10, a refrigeration apparatus 1000 is provided in an embodiment of the present disclosure, and the refrigeration apparatus 1000 may include the refrigeration system 100 of the above embodiment. Or, refrigeration apparatus 1000 can include regenerator 10 according to any of the embodiments described above. The refrigeration apparatus 1000 may be any refrigeration apparatus 1000 that includes the refrigeration system 100. Such as a refrigerator, an air conditioner, etc., the present application is drawn only by taking the refrigeration apparatus 1000 as an example of an air conditioner. Wherein, the refrigeration device 1000 can further include a housing 200, and the refrigeration system 100 or the regenerator 10 is disposed inside the housing 200.

In the refrigeration system 100 and the refrigeration apparatus 1000 of the present application, since the exhaust pipe 12 is inserted into the muffler 11, the exhaust passage 123 of the exhaust pipe 12 is spiral, and the spiral inner diameter of the exhaust passage 123 is different in the direction from the exhaust inlet end 121 to the exhaust outlet end 122. Therefore, when the return air is returned from the return air pipe 11, the return air is disturbed by the exhaust passage 123, so that the return air can be dispersed to the exhaust pipe 12, the heat exchange area between the return air in the return air pipe 11 and the exhaust pipe 12 is further increased, so that the heat exchange efficiency of the heat regenerator 10 is improved.

In the description of the present specification, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

It is to be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. The features defined as "first" and "second" may explicitly or implicitly include at least one feature. In the description of this application, "plurality" means at least two, and in one embodiment two, three, unless explicitly defined otherwise.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application, which is defined by the claims and their equivalents.

Claims (10)

1. A regenerator for a household appliance, comprising:

an air return pipe; and

the exhaust pipe, the exhaust pipe is worn to locate in the muffler to include exhaust inlet end, exhaust outlet end and be located exhaust inlet end with exhaust passage between the exhaust outlet end, exhaust passage is the heliciform exhaust inlet end extremely on exhaust outlet end's the direction, exhaust passage's spiral internal diameter is different.

2. The regenerator of claim 1 wherein the spiral inside diameter of the exhaust gas channel has a trend of increasing to decreasing or decreasing to increasing in the direction from the exhaust gas inlet end to the exhaust gas outlet end.

3. The regenerator of claim 1, wherein the exhaust gas passages are plural in the direction from the exhaust gas inlet end to the exhaust gas outlet end, and the spiral inner diameters of the adjacent exhaust gas passages have opposite or the same trend.

4. The regenerator of claim 3 wherein the spiral inside diameter of the exhaust gas channel has a trend of first decreasing and then decreasing in a direction from the exhaust gas inlet end to the exhaust gas outlet end.

5. The regenerator of claim 1 wherein the return gas tube comprises a barrel, a return gas inlet portion that projects from an outer wall of the barrel, and a return gas outlet portion that projects from an outer wall of the barrel; the exhaust inlet end extends out of the air return outlet part to the outside of the air return pipe, and the exhaust outlet end extends out of the air return inlet part to the outside of the air return pipe.

6. The regenerator of claim 5 wherein the side of the return gas outlet port is provided with a perforation, the exhaust gas inlet port extends from the perforation to the outside of the return gas pipe and is hermetically welded to the perforation; the side of the air return inlet part is provided with a through hole, and the exhaust outlet end extends out of the air return pipe from the through hole and is welded to the through hole in a sealing mode.

7. The regenerator of claim 5 wherein at least a portion of the exhaust pipe proximate the return air inlet section is a capillary tube.

8. A refrigeration system, comprising: the regenerator of any one of claims 1-7.

9. The refrigeration system according to claim 8, wherein the heat regenerator includes a gas return pipe and a gas discharge pipe, the gas return pipe includes a barrel, a gas return inlet portion protruding from an outer wall of the barrel, and a gas return outlet portion protruding from an outer wall of the barrel, the refrigeration system further includes a compressor, a condenser, an evaporator, and a capillary tube, an outlet of the compressor is communicated with an inlet of the condenser, an outlet of the condenser is communicated with an exhaust inlet end of the gas discharge pipe, an exhaust outlet end of the gas discharge pipe is communicated with an inlet of the capillary tube, an outlet of the capillary tube is communicated with an inlet of the evaporator, an outlet of the evaporator is communicated with the gas return inlet portion, and the gas return outlet portion is communicated with an inlet of the compressor.

10. A refrigeration apparatus, comprising the refrigeration system of claim 9; or, comprising a regenerator according to any of claims 1-7.

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