CN114646162A - Heat exchange tube assembly and air-cooled refrigerator - Google Patents
Heat exchange tube assembly and air-cooled refrigerator Download PDFInfo
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- CN114646162A CN114646162A CN202011504828.2A CN202011504828A CN114646162A CN 114646162 A CN114646162 A CN 114646162A CN 202011504828 A CN202011504828 A CN 202011504828A CN 114646162 A CN114646162 A CN 114646162A
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- heat exchange
- capillary tube
- air
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- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 55
- 238000005187 foaming Methods 0.000 abstract description 12
- 238000009413 insulation Methods 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000005057 refrigeration Methods 0.000 description 27
- 238000000034 method Methods 0.000 description 10
- 238000001035 drying Methods 0.000 description 9
- 239000012535 impurity Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
Abstract
The invention discloses a heat exchange tube assembly and an air-cooled refrigerator, wherein the heat exchange tube assembly comprises an air return pipe, a first capillary tube, a second capillary tube and an outer sleeve; wherein the outer sleeve comprises a vacuum chamber, and the air return pipe, the first capillary and the second capillary are suspended in the vacuum chamber together. The air return pipe and the capillary pipe in the heat exchange pipe assembly are respectively suspended in the vacuum cavity of the outer sleeve, so that the problem of energy consumption increase of the refrigerator caused by the fact that heat generated by the high-temperature refrigerant flowing through the air return pipe is conducted to the foaming heat insulation layer of the refrigerator is solved.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to a heat exchange tube assembly and an air-cooled refrigerator.
Background
The heat exchange tube component of the existing single-system air-cooled refrigerator generally uses a copper pipeline and a copper capillary, the copper pipeline and the copper capillary are separated by using an aluminum foil tape, then the copper pipeline and the copper capillary are wrapped by using an aluminum foil, and then a heat-shrinkable sleeve is added for protection; or use the copper product pipeline, the copper product capillary, both are in the same place through the soldering welding, no matter be by two pipelines paste together, still through the welding together, all can lead to the inconsistent and the unreliability of heat exchange efficiency of heat exchange tube assembly, have the manufacturing approach technology complicacy simultaneously, problem with high costs.
In addition, a heat exchange tube assembly composed of an air return tube and a capillary tube in the single-system air-cooled refrigerator is often arranged in a foaming heat insulation layer on the outer side of a refrigerator liner, so that heat generated by a refrigerant flowing through the air return tube can stay in the foaming heat insulation layer, and the problem of high energy consumption of the refrigerator is easily caused.
Disclosure of Invention
The invention aims to improve a heat exchange tube component of a single-system air-cooled refrigerator with a single evaporator so as to solve the problem of high energy consumption of the refrigerator caused by the fact that the heat exchange tube component in the existing single-system air-cooled refrigerator is assembled in a foaming heat insulation layer of the refrigerator.
In order to achieve one of the above objects, an embodiment of the present invention provides a heat exchange tube assembly, which includes a return tube, a first capillary tube, a second capillary tube and an outer sleeve; wherein the outer sleeve comprises a vacuum chamber, and the air return pipe, the first capillary and the second capillary are suspended in the vacuum chamber together.
As an optional technical solution, the outer sleeve is a metal sleeve or a plastic sleeve, the metal sleeve or the plastic sleeve is respectively provided with an air valve, and the air valve is communicated with the vacuum chamber.
As an optional technical solution, the air return pipe, the first capillary and the second capillary are integrally formed.
As an alternative solution, the inner diameter of the first capillary is smaller than the inner diameter of the second capillary.
As an optional technical scheme, the inner diameter of the first capillary is 1.8mm, and the inner diameter of the second capillary is 2.1 mm.
As an alternative solution, the first capillary and the second capillary are symmetrically arranged along a radial direction of the muffler.
As an optional technical scheme, the integrally formed air return pipe, the first capillary and the second capillary are pipelines made of aluminum pipes.
As an optional technical solution, the outer sleeve covers at least a portion where the air return pipe contacts the first capillary and a portion where the air return pipe contacts the second capillary.
As an optional technical scheme, the heat exchange tube assembly is of a flat tube structure.
The invention also provides an air-cooled refrigerator, which comprises a refrigerating system, wherein the refrigerating system comprises: a single evaporator and a heat exchange tube assembly as described above.
Compared with the prior art, the invention provides the heat exchange tube assembly and the air-cooled refrigerator, wherein the air return tube and the capillary tube in the heat exchange tube assembly are respectively suspended in the vacuum chamber of the outer sleeve, so that the problem of energy consumption increase of the refrigerator caused by the fact that heat generated by a high-temperature refrigerant flowing through the air return tube is conducted to the foaming heat insulation layer of the refrigerator is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a heat exchange tube assembly in an embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of the heat exchange tube assembly of fig. 1 taken along line AA.
Fig. 3 is a functional block diagram of a refrigeration system in accordance with an embodiment of the present invention.
Fig. 4 is a flowchart of a control method of the air-cooled refrigerator according to an embodiment of the present invention.
FIG. 5 is a flow chart of a method for controlling an air-cooled refrigerator according to another embodiment of the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 3, the present invention provides a heat exchange tube assembly S, which includes an air return tube 1, a first capillary tube 2, a second capillary tube 3 and an outer sleeve 4, wherein the outer sleeve 4 has a vacuum chamber 5, and the air return tube 1, the first capillary tube 2 and the second capillary tube 3 are suspended in the vacuum chamber 5.
In the invention, the air return pipe 1, the first capillary tube 2 and the second capillary tube 3 are suspended in the vacuum chamber 5 together, i.e. the air return pipe 1, the first capillary tube 2 and the second capillary tube 3 are not in contact with the pipe wall of the outer sleeve 4. When the ventilation pipe assembly S is embedded in a foaming heat insulation layer (not shown) of the refrigerator, the outer sleeve 4 is in contact with the foaming heat insulation layer, so that the phenomenon that the air return pipe 1, the first capillary pipe 2 and the second capillary pipe 3 are in direct contact with the foaming heat insulation layer in the refrigerator is avoided, and the heat of the high-temperature refrigerant flowing through the air return pipe 1 cannot be conducted to the foaming heat insulation layer in the refrigerator through the pipe wall of the air return pipe 1 due to the fact that no heat-conducting medium exists in the vacuum chamber 5, and therefore the problem that energy consumption of the refrigerator is increased can be avoided.
In a preferred embodiment, the outer sleeve 4 is, for example, a metal sleeve or a plastic sleeve with heat insulation function, and has a gas valve (not shown) which is communicated with the vacuum chamber 5, after the outer sleeve 4 is sleeved outside the air return pipe 1, the first capillary tube 2 and the second capillary tube 3, the gas valve is opened, and the pump assembly is used to pump vacuum, so that the outer sleeve 4 forms the vacuum chamber 5.
In a preferred embodiment, the outer sleeve 4 is sleeved on the air return pipe 1, the first capillary tube 2 and the second capillary tube 3, and after the assembly and the vacuumization, the outer sleeve is placed in a refrigerator body and fixed in the foaming heat insulation layer through a foaming process.
In a preferred embodiment, the muffler 1, the first capillary tube 2 and the second capillary tube 3 are integrally formed. Preferably, first capillary 2, second capillary 3 adopts crowded technology simultaneously to extrude with muffler 1 simultaneously, and then guaranteed first capillary 2 in the heat exchange tube subassembly S, the uniformity of second capillary 3 and muffler 1 material, the heat transfer effect has been promoted effectively, and, first capillary 2 has been guaranteed, the area of contact of second capillary 3 and muffler 1, avoided influencing the heat transfer effect because first capillary 2, contact failure between second capillary 3 and the muffler 1, the reliability of heat transfer effect has been guaranteed, and simultaneously, reduce the later stage to the bonding of muffler and capillary and the step of parcel, the production degree of difficulty has been reduced, and the production efficiency is improved.
In addition, the first capillary tube 2, the second capillary tube 3 and the muffler 1 are made of aluminum, namely, the first capillary tube is an aluminum tube pipeline. When the aluminum pipe material is adopted, the capillary tube and the air return pipe have good heat conduction effect, the heat exchange effect of the heat exchange pipe is ensured, the price is low, and the production cost is reduced.
Furthermore, the integrated muffler 1, the first capillary tube 2 and the second capillary tube 3 facilitate the assembly thereof with the outer tube 4.
As shown in fig. 1, the outer tube 4 covers at least a portion of the first capillary tube 2 in contact with the muffler 1 and a portion of the second capillary tube 3 in contact with the muffler 1, and blocks a path through which heat of the high-temperature refrigerant in the muffler 1 is conducted to the outside as much as possible. In other words, the axial length L of the outer sleeve 4 is equal to or greater than a first distance at which the first capillary 2 and the muffler 1 are in contact, and a second distance at which the second capillary 3 and the muffler 1 are in contact. Wherein the first distance and the second distance are equal or approximately equal.
As shown in fig. 1 and 2, the first capillary tube 2 and the second capillary tube 3 are symmetrically arranged along the radial direction of the muffler 1. In other words, as shown in fig. 1 and fig. 2, the first capillary tube 2 and the second capillary tube 3 are located at the upper and lower sides of the muffler 1, but not limited thereto. In other embodiments of the present invention, the first capillary tube and the second capillary tube are located at left and right sides or front and rear sides of the air return pipe, depending on the installation manner of the heat exchange pipe assembly S.
As shown in fig. 2, the cross sections of the first capillary 2, the second capillary 3, the muffler 1 and the outer sleeve 4 are respectively annular, and the annular shape may be an ellipse, a circle, etc. In other embodiments of the present invention, the cross-sections of the first capillary tube, the second capillary tube and the muffler tube may also be polygonal such as rectangular, square, etc.
As shown in fig. 2, the heat exchange tube assembly S has a flat tube structure, such as a flat oval shape. The flat pipe structure is beneficial to the assembly and fixation of the heat exchange pipe assembly S.
In a preferred embodiment, the first capillary 2 has an internal diameter of 1.8mm and the second capillary 3 has an internal diameter of 2.1 mm.
It should be noted that the first capillary tube 2 and the second capillary tube 3 with different inner diameters are mainly used for adjusting the flow rate of the refrigerant therein, so that the single-system air-cooled refrigerator can match the flow rates of different capillary tubes and refrigerants under different refrigeration requirements, and the optimal matching of the refrigeration effect and the rotation speed of the capillary tubes and the compressor is achieved.
The invention also provides an air-cooled refrigerator (not shown) which comprises a refrigerating system, wherein the refrigerating system comprises a single evaporator 50 (shown in figure 3) and a heat exchange tube assembly S (shown in figures 1 and 2), the heat exchange tube assembly S comprises an integrally formed air return tube 1, a first capillary tube 2 and a second capillary tube 3 which are arranged in the vacuum chamber 5 of an outer sleeve 4, the first capillary tube 2 and the second capillary tube 3 are respectively connected with a refrigerant inlet (not shown) of the single evaporator 50, and the air return tube 1 is connected with a refrigerant outlet of the single evaporator 50; preferably, the inner diameter of the first capillary 2 is smaller than the inner diameter of the second capillary 3; and the refrigerant flow rate in the first capillary tube 2 is smaller than the refrigerant flow rate in the second capillary tube 3.
For example, the inner diameter of the first capillary 2 is 1.8mm, and the inner diameter of the second capillary 3 is 2.1 mm. Preferably, the flow rate of the refrigerant in the first capillary tube 2 is 5L/min, and the flow rate of the refrigerant in the second capillary tube 3 is 7L/min.
As shown in fig. 3, the refrigeration system further includes a solenoid valve 40 for controlling the conduction of the first capillary tube 2 and/or the second capillary tube 3.
Specifically, the refrigeration system includes a compressor 10, a condenser 20, a dry filter 30, a solenoid valve 40, a heat exchange tube assembly S (shown in fig. 1) in which refrigerant inlets of a first capillary tube 2 and a second capillary tube 3 are respectively connected to a refrigerant outlet of the dry filter 30, and refrigerant outlets of the first capillary tube 2 and the second capillary tube 3 are respectively connected to a refrigerant inlet of a single evaporator 50, and a single evaporator 50 (corresponding to a freezing evaporator); the refrigerant inlet of the gas return pipe 1 in the heat exchange pipe assembly S is connected to the refrigerant outlet of the single evaporator 50, and the refrigerant outlet of the gas return pipe 1 is connected to the refrigerant outlet of the compressor 10.
The refrigeration process is that the refrigerant flows out from the compressor 10, and is sequentially liquefied by the condenser 20, impurities and moisture are filtered by the drying filter 30, the first capillary tube 2 and/or the second capillary tube 3 are controlled by the electromagnetic valve 40 to reduce pressure and refrigerate, the single evaporator 50 evaporates and absorbs heat, and the high-temperature refrigerant flows back to the compressor 10 through the air return pipe 1, so that a refrigeration cycle is completed.
It should be noted that, before the refrigerant enters the first capillary tube 2 and/or the second capillary tube 3, the control unit of the air-cooled refrigerator performs the determination step, and the control unit outputs a signal to the electromagnetic valve 40, so that the electromagnetic valve 40 can control the conduction and the closing of the first capillary tube 2 and/or the second capillary tube 3, thereby achieving the purpose of adapting the flow rate of the refrigerant and the energy saving of the air-cooled refrigerator.
The refrigeration system of the present invention can realize three different cycles, namely:
when the air-cooled refrigerator is in a forced cooling mode, the electromagnetic valve 40 controls the first capillary tube 2 and the second capillary tube 3 to be conducted at the same time, the refrigerant flows out of the compressor 10, is liquefied through the condenser 20, impurities and moisture are filtered by the drying filter 30, the refrigerant is subjected to pressure reduction and refrigeration through the first capillary tube 2 and/or the second capillary tube 3, the single evaporator 50 is used for evaporation and heat absorption, and the high-temperature refrigerant flows back to the compressor 10 through the air return tube 1.
When the air-cooled refrigerator is in the medium refrigeration mode, the electromagnetic valve 40 controls the second capillary tube 3 to be singly conducted, the refrigerant flows out of the compressor 10, is liquefied through the condenser 20, impurities and moisture are filtered by the drying filter 30, the refrigerant is singly decompressed and refrigerated through the second capillary tube 3, the single evaporator 50 evaporates and absorbs heat, and the high-temperature refrigerant flows back to the compressor 10 through the air return pipe 1.
When the air-cooled refrigerator is in a weak refrigeration mode, the electromagnetic valve 40 controls the first capillary tube 2 to be singly conducted, the refrigerant flows out of the compressor 10, is liquefied through the condenser 20, impurities and moisture are filtered by the drying filter 30, the single pressure reduction refrigeration is carried out through the first capillary tube 2, the single evaporator 50 evaporates and absorbs heat, and the high-temperature refrigerant flows back to the compressor 10 through the air return pipe 1.
The air-cooled refrigerator with the multi-capillary combined single evaporator can enable the appropriate capillary to be matched under different refrigeration modes, so that a refrigeration system can obtain reasonable pressure drop and refrigerant flow, the refrigeration efficiency of the refrigeration system is improved, and the aim of saving energy is fulfilled.
As shown in fig. 4, the present invention further provides a control method 100 of an air-cooled refrigerator, where the control method 100 includes:
s101, acquiring real-time environment temperature;
s102, judging whether the real-time environment temperature is greater than a preset environment temperature; if yes, executing S103, wherein S103 is to control the second capillary to be singly conducted; if not, executing S104;
s104, judging whether the real-time environment temperature is less than the preset environment temperature; if yes, executing S105, wherein S105 is to control the first capillary to be conducted singly;
the air-cooled refrigerator comprises a refrigerating system, the refrigerating system comprises a single evaporator 50 and a heat exchange tube assembly S, the heat exchange tube assembly S comprises an air return tube 1, a first capillary tube 2 and a second capillary tube 3, the first capillary tube 2 and the second capillary tube 3 are respectively connected with a refrigerant inlet of the single evaporator 50, and the air return tube 1 is connected with a refrigerant outlet of the single evaporator 50; the air return pipe 1, the first capillary tube 2 and the second capillary tube 3 are integrally formed; the inner diameter of the first capillary 2 is smaller than the inner diameter of the second capillary 3; and the refrigerant flow rate in the first capillary tube 2 is smaller than the refrigerant flow rate in the second capillary tube 3.
In a preferred embodiment, the predetermined ambient temperature is, for example, 25 ℃; the real-time environment temperature is, for example, the real-time temperature of the refrigerator placement environment; the real-time ambient temperature may be obtained by a temperature sensor disposed on an outer wall surface of the air-cooled refrigerator.
The control method 100 corresponds to a refrigeration cycle including:
the ambient temperature is high, for example more than 25 ℃, and the air-cooled refrigerator is in a medium refrigeration mode; the solenoid valve 40 controls the second capillary tube 3 to be conducted singly, the refrigerant flows out from the compressor 10, is liquefied through the condenser 20, impurities and moisture are filtered by the drying filter 30, the refrigerant is subjected to single pressure reduction refrigeration through the second capillary tube 3, the single evaporator 50 is evaporated to absorb heat, and the high-temperature refrigerant flows back to the compressor 10 through the air return pipe 1.
The ambient temperature is low, for example less than 25 ℃, and the air-cooled refrigerator is in a weak refrigeration mode; the solenoid valve 40 controls the first capillary tube 2 to be conducted singly, the refrigerant flows out from the compressor 10, is liquefied through the condenser 20, impurities and moisture are filtered by the drying filter 30, the single pressure reduction refrigeration is carried out through the first capillary tube 2, the single evaporator 50 evaporates and absorbs heat, and the high-temperature refrigerant flows back to the compressor 10 through the air return pipe 1.
As shown in fig. 5, the present invention further provides a control method 200 of an air-cooled refrigerator, where the control method 200 includes:
s201, acquiring the actual rotating speed of the compressor;
s202, judging whether the actual rotating speed is larger than the maximum value of a preset rotating speed interval or not; if yes, executing S203, wherein S203 is to control the first capillary and the second capillary to be conducted simultaneously; if not, executing S204;
s204, judging whether the actual rotating speed is less than or equal to the maximum value of the preset rotating speed interval and greater than the minimum value of the preset rotating speed interval or not; if yes, executing S205, wherein S205 is to control the second capillary to be conducted singly; if not, executing S206;
s206, judging whether the actual rotating speed is less than or equal to the minimum value of the preset rotating speed interval or not; if yes, executing S207, wherein S207 is to control the first capillary to be conducted singly;
the air-cooled refrigerator comprises a refrigerating system, the refrigerating system comprises a single evaporator 50 and a heat exchange tube assembly S, the heat exchange tube assembly S comprises an air return tube 1, a first capillary tube 2 and a second capillary tube 3, the first capillary tube 2 and the second capillary tube 3 are respectively connected with a refrigerant inlet of the single evaporator 50, and the air return tube 1 is connected with a refrigerant outlet of the single evaporator 50; the air return pipe 1, the first capillary tube 2 and the second capillary tube 3 are integrally formed; the inner diameter of the first capillary 2 is smaller than that of the second capillary 3; and the refrigerant flow rate in the first capillary tube 2 is smaller than the refrigerant flow rate in the second capillary tube 3.
In a preferred embodiment, the predetermined rotation speed interval is 1800 r/min-2500 r/min, for example.
The control method 200 corresponds to a refrigeration cycle including:
when the actual rotating speed of the compressor 10 is greater than 2500r/min (2500 rpm), the air-cooled refrigerator is in a forced cooling mode, the electromagnetic valve 40 controls the first capillary tube 2 and the second capillary tube 3 to be simultaneously conducted, the refrigerant flows out of the compressor 10 and is liquefied by the condenser 20, impurities and moisture are filtered by the drying filter 30, the refrigerant is subjected to pressure reduction and refrigeration by the first capillary tube 2 and/or the second capillary tube 3, the single evaporator 50 is evaporated to absorb heat, and the high-temperature refrigerant flows back to the compressor 10 through the air return pipe 1.
When the actual rotating speed of the compressor 10 is less than or equal to 2500r/min (2500 revolutions per minute) and the actual rotating speed of the compressor 10 is greater than 1800r/min (1800 revolutions per minute), the air-cooled refrigerator is in a medium refrigerating mode; the solenoid valve 40 controls the single conduction of the second capillary tube 3, the refrigerant flows out from the compressor 10, is liquefied by the condenser 20, the impurities and the moisture are filtered by the drying filter 30, the single pressure reduction refrigeration is carried out by the second capillary tube 3, the single evaporator 50 evaporates and absorbs heat, and the high-temperature refrigerant flows back to the compressor 10 through the air return pipe 1.
The actual rotating speed of the compressor 10 is less than or equal to 1800r/min, and the air-cooled refrigerator is in a weak refrigeration mode; the solenoid valve 40 controls the first capillary tube 2 to be conducted singly, the refrigerant flows out from the compressor 10, is liquefied through the condenser 20, impurities and moisture are filtered by the drying filter 30, the single pressure reduction refrigeration is carried out through the first capillary tube 2, the single evaporator 50 evaporates and absorbs heat, and the high-temperature refrigerant flows back to the compressor 10 through the air return pipe 1.
The invention provides a heat exchange tube assembly and an air-cooled refrigerator, wherein an air return tube and a capillary tube in the heat exchange tube assembly are respectively suspended in a vacuum chamber of an outer sleeve, so that the problem of energy consumption increase of the refrigerator caused by the fact that heat generated by a high-temperature refrigerant flowing through the air return tube is conducted to a foaming heat insulation layer of the refrigerator is solved.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A heat exchange tube assembly, characterized by:
the heat exchange tube assembly comprises an air return tube, a first capillary tube, a second capillary tube and an outer sleeve;
wherein the outer sleeve comprises a vacuum chamber, and the air return pipe, the first capillary and the second capillary are suspended in the vacuum chamber together.
2. The heat exchange tube assembly of claim 1, wherein the outer sleeve is a metal sleeve or a plastic sleeve, and an air valve is disposed on each of the metal sleeve and the plastic sleeve and is communicated with the vacuum chamber.
3. The heat exchange tube assembly of claim 1, wherein the muffler, the first capillary tube and the second capillary tube are integrally formed.
4. The heat exchange tube assembly of claim 3, wherein the first capillary tube has an inner diameter smaller than the inner diameter of the second capillary tube.
5. The heat exchange tube assembly of claim 4, wherein the first capillary tube has an inner diameter of 1.8mm and the second capillary tube has an inner diameter of 2.1 mm.
6. The heat exchange tube assembly according to claim 3, wherein the first capillary tube and the second capillary tube are arranged symmetrically along a radial direction of the muffler.
7. The heat exchange tube assembly of claim 3, wherein the integrated return tube, first capillary tube and second capillary tube are aluminum tubing.
8. The heat exchange tube assembly of claim 1, wherein the outer sleeve covers at least a portion of the air return tube in contact with the first capillary tube and a portion of the air return tube in contact with the second capillary tube.
9. The heat exchange tube assembly of claim 1, wherein the heat exchange tube assembly is of a flat tube construction.
10. An air-cooled refrigerator, the air-cooled refrigerator includes refrigerating system, its characterized in that, refrigerating system includes: a single evaporator and a heat exchange tube assembly according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011504828.2A CN114646162A (en) | 2020-12-18 | 2020-12-18 | Heat exchange tube assembly and air-cooled refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011504828.2A CN114646162A (en) | 2020-12-18 | 2020-12-18 | Heat exchange tube assembly and air-cooled refrigerator |
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| CN114646162A true CN114646162A (en) | 2022-06-21 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562139Y (en) * | 2002-06-24 | 2003-07-23 | 广东科龙电器股份有限公司 | Refrigerators |
| CN105352233A (en) * | 2015-11-18 | 2016-02-24 | 合肥华凌股份有限公司 | Refrigerating system and refrigerator with same |
| CN205593227U (en) * | 2016-04-11 | 2016-09-21 | Tcl家用电器（合肥）有限公司 | Heat exchange pipe assembly and refrigeration plant who has it |
| CN206410382U (en) * | 2017-01-05 | 2017-08-15 | 合肥华凌股份有限公司 | Return-air heat exchanger tube, refrigeration system and refrigeration plant |
| CN107166821A (en) * | 2017-06-16 | 2017-09-15 | 合肥华凌股份有限公司 | Heat exchanger tube, refrigeration system, the extrusion die of refrigerator and heat exchanger tube |
| CN207945870U (en) * | 2018-03-13 | 2018-10-09 | 海信容声(广东)冷柜有限公司 | Air-returning pipe component and refrigeration equipment |
| CN210625023U (en) * | 2019-07-01 | 2020-05-26 | 青岛海尔电冰箱有限公司 | Air return assembly and refrigerator with same |
-
2020
- 2020-12-18 CN CN202011504828.2A patent/CN114646162A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562139Y (en) * | 2002-06-24 | 2003-07-23 | 广东科龙电器股份有限公司 | Refrigerators |
| CN105352233A (en) * | 2015-11-18 | 2016-02-24 | 合肥华凌股份有限公司 | Refrigerating system and refrigerator with same |
| CN205593227U (en) * | 2016-04-11 | 2016-09-21 | Tcl家用电器（合肥）有限公司 | Heat exchange pipe assembly and refrigeration plant who has it |
| CN206410382U (en) * | 2017-01-05 | 2017-08-15 | 合肥华凌股份有限公司 | Return-air heat exchanger tube, refrigeration system and refrigeration plant |
| CN107166821A (en) * | 2017-06-16 | 2017-09-15 | 合肥华凌股份有限公司 | Heat exchanger tube, refrigeration system, the extrusion die of refrigerator and heat exchanger tube |
| CN207945870U (en) * | 2018-03-13 | 2018-10-09 | 海信容声(广东)冷柜有限公司 | Air-returning pipe component and refrigeration equipment |
| CN210625023U (en) * | 2019-07-01 | 2020-05-26 | 青岛海尔电冰箱有限公司 | Air return assembly and refrigerator with same |
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Application publication date: 20220621 |