Refrigerant fluid circulation mechanism for air conditioning

Abstract

The application relates to the technical field of refrigeration and air conditioning, in particular to a circulating mechanism for refrigeration and air conditioning, which circulates and flows refrigerant through a circulating condenser pipe to provide cooling for gas, and the U-shaped extension pipes arranged on the side wall of the circulating condenser pipe main body improve the cooling effect, the U-shaped extension pipes are equidistantly arranged in the interval regions between adjacent U-shaped extension pipes, and when the gas passes through the interval regions, the good cooling effect cannot be obtained, and the refrigeration effect of the gas is improved; the U-shaped extension pipes guide the refrigerant flowing in the circulating condenser pipe main body, the refrigerant flows in the interval regions between adjacent circulating condenser pipe main bodies, and the sufficiency of the gas cooling is improved; the auxiliary pipe cover is further arranged to provide a protection for the U-shaped extension pipes, and an auxiliary refrigeration effect can be provided for the gas passing through the intervals between adjacent circulating condenser pipe main bodies.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration and air conditioning, in particular to a circulating mechanism for refrigeration and air conditioning. BACKGROUND

[0002] The circulating core of refrigeration and air conditioning is refrigerant, which circulates through four components of compressor, condenser, throttling device and evaporator to realize heat transfer.

[0003] Compressor: as the "heart", it compresses low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gas to provide circulating power.

[0004] Condenser: high-temperature and high-pressure gas is cooled to high-pressure liquid by heat dissipation to the outside air.

[0005] Throttling device (such as expansion valve): the high-pressure liquid is throttled and decompressed to become a low-temperature and low-pressure mist mixture.

[0006] Evaporator: low-temperature and low-pressure refrigerant absorbs indoor heat and evaporates into gas to achieve refrigeration effect.

[0007] After the refrigerant circulates into the indoor unit of the air conditioner, the refrigerant is first decompressed and cooled by the expansion valve. The cooled refrigerant flows in the circulating condensing pipe. The existing circulating condensing pipe is arranged in a serpentine shape and is supported by a support frame. A cylindrical impeller is arranged in the indoor unit to transport air. The hot air in the room is sucked in through the cylindrical impeller, then cooled by the circulating condensing pipe and sprayed out to achieve the effect of cooling and refrigeration. In this process, the circulating condensing pipes have a certain interval. When the hot air is sucked in for refrigeration, the refrigeration effect of the hot air directly entering from the interval is poor. The circulating condensing pipe for circulating refrigerant lacks a suitable auxiliary structure to improve the refrigeration effect.

[0008] Therefore, the present application provides a circulating mechanism for refrigeration and air conditioning to solve the above problems. SUMMARY

[0009] The present application aims to provide a circulating mechanism for refrigeration and air conditioning to solve the problems raised in the background.

[0010] To achieve the above purpose, the present application provides the following technical solution: a circulating mechanism for refrigeration and air conditioning, comprising a circulating condensing pipe body and a U-shaped receiving pipe arranged at the position of adjacent circulating condensing pipe bodies, the circulating condensing pipe body and the U-shaped receiving pipe form a circulating condensing pipe, one end of the circulating condensing pipe is provided with a liquid inlet, and the other end is provided with a liquid outlet; the circulating condensing pipe body is supported by the support frame plate.

[0011] The circulation auxiliary assembly is arranged at the interval position of the adjacent circulation condenser pipe bodies, and the circulation auxiliary assembly is arranged equidistantly.

[0012] The circulation auxiliary assembly is arranged at the interval position of the adjacent circulation condenser pipe bodies, and the circulation auxiliary assembly is arranged equidistantly.

[0013] The circulation auxiliary assembly comprises a U-shaped extension pipe arranged at the interval position of the adjacent circulation condenser pipe bodies, so as to improve the circulation flow range of the refrigerant and provide refrigeration effect for the gas passing through the interval position of the adjacent circulation condenser pipe bodies.

[0014] Preferably, the circulation auxiliary assembly further comprises a connecting pipe head connected to the side wall of the circulation condenser pipe body.

[0015] The two connecting pipe heads form a group, and each connecting pipe head is connected to the two end openings of the U-shaped extension pipe.

[0016] Preferably, an external thread ring opening end is fixedly arranged at the opening end of the connecting pipe head, and a sealing insertion opening is arranged in the inner side of the ring opening of the external thread ring opening end.

[0017] The opening of the U-shaped extension pipe is inserted into the sealing insertion opening.

[0018] The U-shaped extension pipe arranged in the circulation condenser pipe body guides the flow of the refrigerant, so that the refrigerant flows through the interval area between the adjacent circulation condenser pipe bodies, thereby improving the sufficiency of gas cooling.

[0019] Preferably, a limiting stop ring is fixedly arranged on the outer side wall of the opening of the U-shaped extension pipe.

[0020] An internal thread connecting pipe head is movably arranged on the U-shaped extension pipe, and the internal thread connecting pipe head is threadedly connected to the external thread ring opening end of the opening end of the connecting pipe head.

[0021] Preferably, an auxiliary thin pipe is equidistantly arranged at the middle position of the U-shaped extension pipe.

[0022] The auxiliary thin pipe is used for shunting the refrigerant in the U-shaped extension pipe.

[0023] Preferably, the circulation auxiliary assembly further comprises an auxiliary structure.

[0024] The auxiliary structure is used for protecting the U-shaped extension pipe and assisting in refrigeration of the gas passing through the interval of the adjacent circulation condenser pipe bodies.

[0025] Preferably, the auxiliary structure comprises a positioning groove body arranged on the outer side wall of the U-shaped extension pipe and an auxiliary pipe cover arranged on the outer side of the U-shaped extension pipe.

[0026] Preferably, the auxiliary pipe cover is spliced by two pipe cover halves;

[0027] The end of the pipe cover half is fixedly provided with a butt joint head, a butt joint screw groove is arranged on the butt joint head of one of the pipe cover halves, and a through groove corresponding to the butt joint screw groove is arranged on the butt joint head of the other pipe cover half;

[0028] After the two pipe cover halves are butted to form the auxiliary pipe cover, the butt joint heads arranged at the ends of the pipe cover halves are butted to form a ring mouth body, and the ring mouth body is connected and fixed by fastening screws.

[0029] Preferably, auxiliary mesh bodies are also uniformly arranged in the pipe cover halves;

[0030] The auxiliary mesh bodies are used for the circulation of gas, so as to cool the U-shaped extension pipe and the auxiliary fine pipe, and also provide a blocking effect for impurities in the gas, so as to prevent the U-shaped extension pipe and the auxiliary fine pipe from being polluted.

[0031] Preferably, a conductive lug is also fixedly arranged on the inner side wall of the pipe cover half;

[0032] The end of the conductive lug is adaptively inserted into the positioning groove body on the side wall of the U-shaped extension pipe to provide a positioning effect for the pipe cover half.

[0033] Compared with the prior art, the present application has the following beneficial effects:

[0034] The circulating fluid circulation mechanism for refrigeration air conditioners designed in the present application comprises a circulating condensing pipe body and a U-shaped receiving pipe arranged at the position adjacent to the circulating condensing pipe body, the circulating condensing pipe body and the U-shaped receiving pipe form a circulating condensing pipe, the circulating condensing pipe is provided with a liquid inlet at one end and a liquid outlet at the other end; the circulating condensing pipe body is supported by the support frame plate arranged thereon; a circulating auxiliary assembly is arranged on one side of the circulating condensing pipe body; the circulating auxiliary assembly is arranged at the interval position adjacent to the circulating condensing pipe body, and the circulating auxiliary assemblies are equidistantly arranged; the circulating auxiliary assembly comprises a U-shaped extension pipe, and the U-shaped extension pipe is arranged at the interval position adjacent to the circulating condensing pipe body, so as to improve the circulating circulation range of the refrigerant and improve the cooling effect on the gas.

[0035] The scheme is based on circulating and flowing the preparation through the circulating condensing pipe to provide cooling for the gas, and the U-shaped extension pipe is arranged on the side wall of the circulating condensing pipe body to improve the cooling effect, that is, the U-shaped extension pipe is equidistantly arranged in the interval area between adjacent U-shaped extension pipes, and when the gas passes through the area, the good cooling effect is avoided, and the refrigeration effect of the gas is improved. That is, the U-shaped extension pipe guides the refrigerant flowing in the circulating condensing pipe body, so that the refrigerant flows in the interval area between adjacent circulating condensing pipe bodies, so as to improve the sufficiency of gas cooling.

[0036] On this basis, the scheme also provides an auxiliary pipe cover to provide a protection effect for the U-shaped extension pipe, the auxiliary pipe cover is formed by butting two pipe cover halves, and the auxiliary mesh bodies are uniformly arranged on the pipe cover halves; the auxiliary pipe cover provides a protection effect for the U-shaped extension pipe, and also provides an auxiliary refrigeration effect for the gas passing through the interval between adjacent circulating condensing pipe bodies; that is, when the gas passes through the interval area between adjacent circulating condensing pipe bodies, in order to avoid that the impurities in the gas adhere to the U-shaped extension pipe, so as to avoid affecting the auxiliary refrigeration effect of the U-shaped extension pipe on the gas; on the basis of protecting the U-shaped extension pipe, the head of the conduction protrusion arranged on the inner side of the pipe cover half is inserted into the positioning groove body on the outer side of the U-shaped extension pipe, and the refrigeration effect in the U-shaped extension pipe can also be conducted to the pipe cover half, that is, when the gas passes through the auxiliary pipe cover, the auxiliary pipe cover can also provide a refrigeration effect for the gas. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a structure schematic view of the fluid circulating mechanism of the refrigeration air conditioner of the application;

[0038] Figure 2 It is a structure schematic view of the fluid circulating mechanism of the refrigeration air conditioner of the application; Figure 1 It is a structure connection enlarged view of A in the middle;

[0039] Figure 3 It is a local structure connection explosion schematic view of the circulating condensing pipe body and the circulating auxiliary assembly of the application;

[0040] Figure 4 It is a structure connection enlarged view of B in the middle; Figure 3 It is a structure connection enlarged view of B in the middle;

[0041] Figure 5 It is a structure connection explosion schematic view of the circulating auxiliary assembly of the application;

[0042] Figure 6 It is a structure connection enlarged view of C in the middle; Figure 5 It is a structure connection enlarged view of C in the middle;

[0043] Figure 7 It is a structure connection schematic view of the U-shaped extension pipe of the application;

[0044] Figure 8 For Figure 7 Structure connection amplification schematic diagram at D;

[0045] Figure 9 For auxiliary pipe cover structure connection explosion schematic diagram of the application;

[0046] Figure 10 For Figure 9 Structure connection amplification schematic diagram at E.

[0047] In the figure: circulating condenser pipe body 1, U-shaped receiving pipe 2, liquid inlet 3, liquid outlet 4, support frame plate 5, connecting pipe head 601, outer threaded ring mouth end 602, sealing socket 603, U-shaped extension pipe 604, limiting baffle ring 605, inner threaded connecting pipe head 606, auxiliary thin pipe 701, positioning groove body 801, pipe cover half 802, butt joint head 803, butt joint screw groove 804, fastening screw 805, auxiliary mesh body 806, conductive lug 807. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the application will be described clearly and completely below. All other embodiments obtained by those of ordinary skill in the art without creative labor on the basis of the embodiments in the application belong to the protection scope of the application.

[0049] Embodiment one: please refer to Figures 1-10 A circulating fluid circulation mechanism for refrigeration air conditioning, comprising a circulating condenser pipe body 1 and a U-shaped receiving pipe 2 arranged at a position adjacent to the circulating condenser pipe body 1, the circulating condenser pipe body 1 and the U-shaped receiving pipe 2 form a circulating condenser pipe, the circulating condenser pipe has a liquid inlet 3 at one end and a liquid outlet 4 at the other end; the circulating condenser pipe body 1 is supported by the support frame plate 5 arranged thereon.

[0050] The circulating auxiliary assembly is arranged at a position adjacent to the circulating condenser pipe body 1 and is equidistantly arranged; the circulating auxiliary assembly comprises a U-shaped extension pipe 604 arranged at a position adjacent to the circulating condenser pipe body 1, so as to improve the circulating flow range of the refrigerant and improve the cooling effect on the gas.

[0051] According to the accompanying Figures 1-4As shown, it can be known that on the basis of circulating the preparation through the circulating condensing pipe to provide cooling for the gas, the scheme improves the cooling effect of the circulating condensing pipe body 1 by setting the U-shaped extension pipe 604 on the side wall of the circulating condensing pipe body 1, that is, the U-shaped extension pipe 604 is equidistantly arranged in the interval area between adjacent U-shaped extension pipes 604, when the gas passes through the area, in order to avoid not getting good cooling effect, which has a positive effect on improving the refrigeration effect of the gas; that is, the U-shaped extension pipe 604 arranged to guide the refrigerant circulating in the circulating condensing pipe body 1, so that the refrigerant circulates in the interval area between adjacent circulating condensing pipe bodies 1, in order to improve the sufficiency of gas cooling.

[0052] In addition, the scheme also provides an auxiliary pipe cover to provide a protection effect for the U-shaped extension pipe 604, which can provide an auxiliary refrigeration effect for the gas passing through the interval between adjacent circulating condensing pipe bodies 1 while providing a protection effect for the U-shaped extension pipe 604.

[0053] Wherein the use of the U-shaped extension pipe 604, combined with the attached Figures 7-8 As shown, the circulating auxiliary assembly further comprises a connecting pipe head 601 connected to the side wall of the circulating condensing pipe body 1; the two connecting pipe heads 601 form a group, and each connecting pipe head 601 is connected to the two end openings of the U-shaped extension pipe 604; an external thread ring port end 602 is fixedly arranged at the opening end of the connecting pipe head 601, and a sealing insertion port 603 is arranged in the inner side of the ring port of the external thread ring port end 602; the opening of the U-shaped extension pipe 604 is adaptively inserted into the sealing insertion port 603; a limiting stop ring 605 is fixedly arranged on the outer side wall of the opening of the U-shaped extension pipe 604; an internal thread connecting pipe head 606 is movably sleeved on the U-shaped extension pipe 604, and the internal thread connecting pipe head 606 is adaptively and threadedly connected with the external thread ring port end 602 of the opening end of the connecting pipe head 601.

[0054] As can be known, the U-shaped extension pipe 604 in the scheme is detachably arranged, when the U-shaped extension pipe 604 is installed, the openings at both ends thereof are inserted into the sealing insertion port 603 on the inner side of the opening of the external thread ring port end 602, wherein two adjacent connecting pipe heads 601 are connected with one U-shaped extension pipe 604, after the openings of the U-shaped extension pipe 604 are inserted into the sealing insertion port 603, until the limiting stop ring 605 arranged thereon is in contact with the port of the external thread ring port end 602, then rotate the internal thread connecting pipe head 606, so that the internal thread connecting pipe head 606 is threadedly connected with the external thread ring port end 602, until the internal thread connecting pipe head 606 at both ends of the U-shaped extension pipe 604 is tightened, at this time, the installation work of the U-shaped extension pipe 604 is completed.

[0055] Combined with the attachedFigures 1-2 As shown, two connecting pipe heads 601 in a group are equidistantly arranged on one side of the circulating condensing pipe body 1, and the connecting pipe heads 601 face the spacing area between adjacent circulating condensing pipe bodies 1, that is, after the U-shaped extension pipe 604 is installed, the U-shaped extension pipe 604 is arranged in the spacing area between adjacent circulating condensing pipe bodies 1.

[0056] The refrigerant enters from the liquid inlet 3 and flows in the circulating condensing pipe body 1 and the U-shaped receiving pipe 2, and in the circulating condensing pipe body 1, the refrigerant also flows in the U-shaped extension pipe 604 connected to the circulating condensing pipe body 1, which guides the refrigerant to the spacing area between adjacent circulating condensing pipe bodies 1, that is, when the gas passes through the spacing area, the U-shaped extension pipe 604 through which the refrigerant flows can also provide a refrigeration effect for the gas, which provides a refrigeration compensation effect for the spacing area between adjacent circulating condensing pipe bodies 1, that is, improves the refrigeration range of the gas, thereby avoiding the problems of refrigeration omission or insufficient refrigeration.

[0057] As shown in the accompanying drawings, Figure 7 The U-shaped extension pipe 604 is equidistantly and continuously arranged at the middle position of the U-shaped extension pipe 604; the refrigerant flowing in the U-shaped extension pipe 604 is divided; when the gas passes through the position of the auxiliary pipe 701, the auxiliary pipe 701 provides better contact refrigeration for the gas, which has a positive effect on improving the refrigeration effect.

[0058] When the gas passes through the spacing area between adjacent circulating condensing pipe bodies 1, in order to avoid that impurities in the gas adhere to the U-shaped extension pipe 604, thereby affecting the auxiliary refrigeration effect of the U-shaped extension pipe 604 on the gas, in combination with the accompanying drawings, Figure 3 and the accompanying drawings, Figures 5-10 The auxiliary structure is also provided to protect the U-shaped extension pipe 604.

[0059] The auxiliary structure includes a positioning groove 801 arranged on the outer sidewall of the U-shaped extension pipe 604 and an auxiliary pipe cover arranged on the outer side of the U-shaped extension pipe 604; the auxiliary pipe cover is spliced by two pipe cover halves 802; the end of the pipe cover half 802 is fixedly provided with a butt joint head 803, the butt joint head 803 of one of the pipe cover halves 802 is provided with a butt joint screw groove 804, and the butt joint head 803 of the other pipe cover half 802 is provided with a through groove corresponding to the butt joint screw groove 804; after the two pipe cover halves 802 are butted to form the auxiliary pipe cover, the butt joint heads 803 arranged at the ends of the pipe cover halves 802 are butted to form a ring mouth body, and the ring mouth body is connected and fixed by a fastening screw 805.

[0060] The auxiliary mesh body 806 is also uniformly arranged in the pipe cover half 802; the auxiliary mesh body 806 arranged here is used for the circulation of gas, so as to cool the U-shaped extension pipe 604 and the auxiliary fine pipe 701; and also used to provide a blocking effect on impurities in the gas, so as to pollute the U-shaped extension pipe 604 and the auxiliary fine pipe 701.

[0061] For the use of the auxiliary pipe cover, that is, after the U-shaped extension pipe 604 is installed and positioned, the auxiliary pipe cover is installed, in order to facilitate the installation of the auxiliary pipe cover, the conductive lug 807 is also fixedly arranged on the inner sidewall of the pipe cover half 802; the end of the conductive lug 807 is adapted to be inserted into the positioning groove 801 on the sidewall of the U-shaped extension pipe 604 to provide a positioning function for the pipe cover half 802; that is, two pipe cover halves 802 are wrapped on the U-shaped extension pipe 604 at the same time, and the conductive lug 807 on the inner side of the pipe cover half 802 needs to be aligned with the positioning groove 801 on the outer sidewall of the U-shaped extension pipe 604, until the end of the conductive lug 807 is inserted into the positioning groove 801, then the other pipe cover half 802 is installed according to the same operation method, that is, the conductive lug 807 on the inner side of the other pipe cover half 802 is inserted into the positioning groove 801 on the other side of the U-shaped extension pipe 604, at this time, the two U-shaped extension pipes 604 are also butted to form an auxiliary pipe cover.

[0062] At this point, the inner wall of the auxiliary tube cover does not contact the outer wall of the U-shaped extension tube 604, meaning there is a gap between them. After the two tube cover halves 802 are joined to form an auxiliary tube cover, the docking head 803 at the end of the tube cover half 802 will form an annular body. A docking screw groove 804 is provided on the docking head 803 at the end of one tube cover half 802, and a through groove is provided in the docking head 803 at the end of the other tube cover half 802. When the docking heads 803 are joined to form an annular body, the through groove will also align with the docking screw groove 804. Then, the fastening screw 805 is inserted into the through groove and threadedly connected to the docking screw groove 804. The splicing and installation of the auxiliary tube cover is then completed.

[0063] Then from the appendix Figure 10 As shown, when the gas passes through the interval area between adjacent circulating condenser tube bodies 1, for the gas passing through the U-shaped extension tube 604, impurities in the gas are blocked by the auxiliary mesh body 806 on the tube cover half 802 to avoid adhering to the side wall of the U-shaped extension tube 604. The auxiliary mesh body 806 provided here is also for the passage of gas, so that the gas passes through the U-shaped extension tube 604 to provide a cooling effect.

[0064] The auxiliary tube cover in this design not only protects the U-shaped extension tube 604 but also provides an auxiliary cooling effect for the gas. When the tube cover half 802 is joined to form an auxiliary tube cover, the head of the conductive protrusion 807 located inside the tube cover half 802 is inserted into the positioning groove 801 outside the U-shaped extension tube 604. Therefore, the insertion of the conductive protrusion 807 and the positioning groove 801 here not only provides positioning for the installation of the tube cover half 802 but also conducts the cooling effect in the U-shaped extension tube 604 to the tube cover half 802. In other words, when the gas passes through the auxiliary tube cover, the auxiliary tube cover can also provide a cooling effect for the gas.

[0065] Combined with the appendix Figure 1 and attached Figure 3 As shown, this solution makes the U-shaped extension tube 604 detachable to facilitate future maintenance. To avoid frequent disassembly and cleaning of the U-shaped extension tube 604, this solution provides an auxiliary tube cover to protect the U-shaped extension tube 604 and prevent impurities in the gas from contaminating it.

[0066] Wherein for the disassembly maintenance work of the auxiliary pipe cover, first, the fastening screw 805 for fixing the ring body is removed, after the fastening screw 805 is disassembled, for the fixing of the spliced auxiliary pipe cover, then the pipe cover half 802 is taken off from the U-shaped extension pipe 604, so that the conductive protrusion 807 inside the pipe cover half 802 is separated from the positioning groove body 801, and the disassembly work of the pipe cover half 802 is completed.

[0067] In combination with the accompanying drawings Figure 4 and the accompanying drawings Figure 8 As shown, if the U-shaped extension pipe 604 needs to be disassembled in this process, first, the inner threaded connection pipe head 606 is rotated, that is, the threaded connection between the inner threaded connection pipe head 606 and the outer threaded ring end 602 is removed, then the U-shaped extension pipe 604 is pulled out along the axis direction of the connection pipe head 601 until the pipe head of the U-shaped extension pipe 604 is separated from the sealing socket 603.

[0068] After the U-shaped extension pipe 604 and the auxiliary pipe cover are disassembled and maintained, the U-shaped extension pipe 604 and the connection pipe head 601 are connected and fixed in turn, and then the auxiliary pipe cover is installed and wrapped on the U-shaped extension pipe 604.

[0069] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fluid circulation mechanism for refrigeration and air conditioning, comprising a circulating condenser tube body (1) and a U-shaped receiving pipe (2) disposed adjacent to the circulating condenser tube body (1), wherein the circulating condenser tube body (1) and the U-shaped receiving pipe (2) together form a circulating condenser tube, wherein an inlet (3) is provided at one end of the circulating condenser tube and an outlet (4) is provided at the other end; the circulating condenser tube body (1) is supported by a support frame plate (5); Its features are: A circulation auxiliary component is provided on one side of the main body of the circulating condenser (1); The circulation auxiliary component is located at the interval between adjacent circulation condenser bodies (1), and the circulation auxiliary components are set at equal intervals; The circulation auxiliary component includes a U-shaped extension tube (604) which is located at the interval between adjacent circulation condenser tube bodies (1) to increase the circulation range of the refrigerant and provide a cooling effect for the gas passing through the interval between adjacent circulation condenser tube bodies (1). The circulation auxiliary component also includes a connecting pipe head (601) connected to the side wall of the circulation condenser body (1). The connecting pipe head (601) is in pairs, and each pair of connecting pipe heads (601) is connected to the two ends of the U-shaped extension pipe (604); An external threaded annular end (602) is fixedly provided at the end of the pipe opening of the connecting pipe head (601), and a sealing socket (603) is provided inside the annular end (602). The port of the U-shaped extension tube (604) is adapted to be inserted into the sealing socket (603); The U-shaped extension tube (604) is provided to guide the refrigerant flowing in the circulating condenser body (1), so that the refrigerant flows from the interval area between adjacent circulating condenser bodies (1) to improve the adequacy of gas cooling.

2. The fluid circulation mechanism for refrigeration and air conditioning according to claim 1, characterized in that: A limit ring (605) is fixedly installed on the outer wall of the pipe opening near the U-shaped extension pipe (604). An internally threaded connecting pipe head (606) is also movably fitted on the U-shaped extension pipe (604), which is threadedly connected to the externally threaded ring end (602) of the pipe opening end of the connecting pipe head (601).

3. The fluid circulation mechanism for refrigeration and air conditioning according to claim 1, characterized in that: Auxiliary thin tubes (701) are equidistantly connected at the middle position of the U-shaped extension tube (604). For the refrigerant to be diverted through the U-shaped extension tube (604).

4. The fluid circulation mechanism for refrigeration and air conditioning according to claim 3, characterized in that: The cycle auxiliary component also includes an auxiliary structure; This auxiliary structure is used to provide protection for the U-shaped extension tube (604) and to provide auxiliary cooling for the gas passing through the space between adjacent circulating condenser tube bodies (1).

5. The fluid circulation mechanism for refrigeration and air conditioning according to claim 4, characterized in that: The auxiliary structure includes a positioning groove (801) disposed on the outer wall of the U-shaped extension tube (604) and an auxiliary tube cover disposed on the outer side of the U-shaped extension tube (604).

6. The fluid circulation mechanism for refrigeration and air conditioning according to claim 5, characterized in that: The auxiliary tube cover is composed of two tube cover halves (802) joined together; The end of the tube cover half (802) is fixedly provided with a docking head (803). A docking screw groove (804) is provided on the docking head (803) of one tube cover half (802), and a through groove corresponding to the docking screw groove (804) is provided on the docking head (803) of the other tube cover half (802). After the two tube cover halves (802) are joined together to form an auxiliary tube cover, the joining heads (803) at the ends of the tube cover halves (802) are joined together to form an annular body, which is connected and fixed by fastening screws (805).

7. The fluid circulation mechanism for refrigeration and air conditioning according to claim 6, characterized in that: Auxiliary mesh bodies (806) are also evenly arranged in the tube cover half (802); The auxiliary mesh body (806) is used for gas flow so that it can be cooled through the U-shaped extension tube (604) and the auxiliary fine tube (701); the auxiliary mesh body (806) is also used to provide a barrier effect against impurities in the gas so as to contaminate the U-shaped extension tube (604) and the auxiliary fine tube (701).

8. The fluid circulation mechanism for refrigeration and air conditioning according to claim 6, characterized in that: A conductive protrusion (807) is also fixedly installed on the inner side wall of the tube cover half (802). The end of the conductive protrusion (807) is fitted into the positioning groove (801) on the side wall of the U-shaped extension tube (604) to provide a positioning function for the tube cover half (802).

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