CN219606271U - Composite catheter assembly and liquid reservoir - Google Patents
Composite catheter assembly and liquid reservoir Download PDFInfo
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- CN219606271U CN219606271U CN202223236351.1U CN202223236351U CN219606271U CN 219606271 U CN219606271 U CN 219606271U CN 202223236351 U CN202223236351 U CN 202223236351U CN 219606271 U CN219606271 U CN 219606271U
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- conduit
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- housing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a composite catheter assembly and a liquid reservoir, wherein the composite catheter assembly comprises a catheter and at least one connecting sleeve; one end of the catheter is provided with a pipe orifice connecting part, and the connecting sleeve is sleeved on the pipe orifice connecting part; the material of the guide pipe is carbon steel, or the material of the guide pipe is stainless steel; the connecting sleeve is made of copper metal. The utility model also discloses a liquid storage device, which comprises a shell, wherein the shell is connected with the composite conduit assembly, and the composite conduit assembly is sleeved with a connecting sleeve made of copper metal on a conduit made of steel pipe, so that the difficulty in pipeline welding of the conduit is reduced, the welding quality of pipeline connection of the conduit is improved, and a composite conduit structure is formed in a sleeved mode, so that the preparation cost of the conduit can be effectively reduced.
Description
Technical Field
The utility model mainly relates to the technical field of refrigeration equipment, in particular to a composite conduit assembly and a liquid reservoir.
Background
The blast pipe of present reservoir and the input of compressor are connected with each other generally to adopt welded mode, because refrigerating system is high to the gas tightness requirement, need ensure to have good welding quality between reservoir blast pipe and the compressor, and the reservoir among the prior art generally adopts the copper pipe as the blast pipe, connects the input of compressor through the copper pipe, is convenient for carry out welded fastening, and welding quality is good moreover, and compressor and copper pipe connection gas tightness are good.
However, copper is expensive, and the manufacturing cost of the liquid reservoir is increased by adopting a copper pipe to manufacture the exhaust pipe of the liquid reservoir.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a composite conduit assembly and a liquid reservoir.
The utility model provides a composite catheter assembly, which comprises a catheter and at least one connecting sleeve;
one end of the catheter is provided with a pipe orifice connecting part, and the connecting sleeve is sleeved on the pipe orifice connecting part;
the material of the guide pipe is carbon steel, or the material of the guide pipe is stainless steel;
the connecting sleeve is made of copper metal.
Further, the catheter is further provided with a housing connection portion for connecting to the reservoir housing.
Further, the connecting sleeve is sleeved on the shell connecting part, or the connecting flange is sleeved on the shell connecting part.
Further, the wall thickness of the connecting sleeve is t1, and the wall thickness of the catheter is t2;
the constraint relation between t1 and t2 is: t1 is more than or equal to 0.2mm and less than or equal to 2 t2.
Further, the diameter of the pipe orifice connecting portion is D1, the inner diameter of the connecting sleeve is D1, and the constraint relation between D1 and D1 is: D1-D1 is less than or equal to 0.5mm and less than or equal to 0.5mm.
Further, the length of the connecting sleeve is h1, and the constraint relation of h1 is as follows: h1 is more than 3mm.
Further, the length of the pipe orifice connecting portion is L1, and the constraint relationship between L1 and h1 is: h1 is more than or equal to 0.6 and less than or equal to L1 and less than or equal to 8, and h1.
Further, the diameter of the shell connecting part is D2, and the diameter of the conduit is D;
the constraint relation between D2 and D is as follows: d2 is 0.9 x.ltoreq.d2 is 1.1 x D.
Further, a welding seam part is arranged between the guide pipe and the connecting sleeve, the length of the welding seam part is L2, and the constraint relation of the L2 is as follows: l2 is more than or equal to 3mm.
The utility model also provides a liquid storage device, which comprises a shell, wherein the composite catheter assembly is arranged on the shell;
the lower end of the shell is provided with at least one exhaust port, and the shell connecting part of the guide pipe is welded and fixed at the exhaust port position of the shell.
Further, the welding mode is furnace soldering, high-frequency welding, flame soldering, resistance welding, argon arc welding, laser welding, double-protection welding or CMT welding.
The utility model provides a composite conduit assembly and a liquid reservoir, wherein the composite conduit assembly can improve the welding connection quality of a conduit by sleeving a copper metal connecting sleeve on the conduit made of a steel pipe material, and can reduce the preparation cost of the conduit by forming a composite conduit structure in a sleeving manner.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a composite catheter assembly in accordance with an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the structure at a of FIG. 1 in accordance with an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a reservoir according to a first embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a housing connection portion according to a second embodiment of the present utility model;
FIG. 5 is a schematic diagram of a reservoir structure according to a third embodiment of the present utility model;
fig. 6 is an enlarged schematic view of the structure at c of fig. 5 in accordance with an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Fig. 1 shows a schematic structural view of a composite catheter assembly according to an embodiment of the present utility model, and fig. 2 shows an enlarged schematic structural view of a portion a of fig. 1 according to an embodiment of the present utility model. The composite conduit assembly comprises a conduit 1 and at least one connecting sleeve, as shown in fig. 1, a conduit connecting part and a shell connecting part 12 are arranged on the conduit 1, the conduit connecting part is positioned at a pipe orifice position at one end of the conduit 1, the shell connecting part 12 is positioned on the conduit 1, the conduit 1 is connected with a connecting pipe of a compressor based on the pipe orifice connecting part 11, and the conduit 1 is connected with a shell of a liquid reservoir based on the shell connecting part 12.
Specifically, the nozzle connecting portion 11 is sleeved with a first connecting sleeve 21, and the first connecting sleeve 21 covers the circumferential outer wall of the catheter 1, so as to improve the connection reliability of the catheter 1 and external equipment.
Further, the material of the conduit 1 may be carbon steel, which has good rigidity strength, and can meet the operation requirement of a refrigerating system, and the material of the conduit 1 may also be stainless steel, so that the corrosion of moisture in air to the conduit 1 can be reduced, the risk of rusting the conduit 1 is reduced, and the service life of the conduit 1 is prolonged.
Further, the material of the first connecting sleeve 21 is copper, that is, the first connecting sleeve 21 is a copper sleeve, and the copper sleeve is arranged to cover the pipe orifice connecting portion 11 and the shell connecting portion 12, so that the welding convenience between the guide pipe 1 and the compressor and the reservoir shell can be improved, and the welding quality of the copper sleeve and the compressor and the reservoir shell is good, so that the welding stability of the guide pipe 1 and the compressor and the reservoir shell can be effectively improved.
Specifically, the first connecting sleeve 21 may be fixed on the catheter 1 based on a welding manner, the welding manner may be soldering in a furnace, the first connecting sleeve 21 is sleeved on the nozzle connecting portion 11, solder is added between the first connecting sleeve 21 and the nozzle connecting portion 11, and the catheter 1 and the first connecting sleeve 21 are placed in the welding furnace to be welded.
Further, the welding temperature of the braze welding in the furnace is set to be T, and the value range of the T is as follows: 650 ℃ T < 1084 ℃, in which the solder between the first joint sleeve 21 and the conduit 1 can be sufficiently melted, so that the first joint sleeve 21 and the nozzle connection 11 are tightly connected.
Further, after the brazing operation in the furnace of the connecting sleeve and the guide pipe 1 is completed, a welding seam part is formed between the first connecting sleeve 21 and the pipe orifice connecting part 11, the welding seam part is used for connecting the first connecting sleeve 21 and the guide pipe 1, the length of the welding seam part is L2, and the value range of the L2 is as follows: l2 is more than or equal to 3mm, and a welding seam part with enough length is formed, so that the stability of a connecting structure between the connecting sleeve and the guide pipe 1 is improved.
Specifically, the wall thickness of the first connecting sleeve 21 is t1, the wall thickness of the catheter 1 is t2, and the constraint relationship between t1 and t2 is: and the first connecting sleeve 21 with a certain thickness is arranged at the position that t1 which is more than or equal to 0.2mm and less than or equal to 2 t2, and the composite conduit assembly cost is prevented from being increased due to the fact that the first connecting sleeve 21 is too thick while the stability of welding connection between the conduit 1 and the compressor and the reservoir shell is ensured.
Specifically, the diameter of the nozzle connecting portion 11 is D1, the inner diameter of the first connecting sleeve 21 is D1, and the constraint relationship between D1 and D1 is: -D1 of 0.5mm or less and 0.5mm or less, i.e. the first connection sleeve 21 and the nozzle connection portion 11 may be a clearance fit, improving the ease of fitting of the first connection sleeve 21 and the nozzle connection portion 11.
Further, the first connecting sleeve 21 and the nozzle connecting portion 11 may be in interference fit, so as to improve the connection stability of the first connecting sleeve 21 and the nozzle connecting portion 11.
Specifically, the length of the first connection sleeve 21 is h1, and the constraint relationship of h1 is: h1 > 3mm, the connection stability between the first connection sleeve 21 and the nozzle connection part 11 can be improved by providing the first connection sleeve 21 with a certain length.
Further, the length of the nozzle connecting portion 11 is L1, and the constraint relationship between L1 and h1 is: h1 is more than or equal to 0.6 and less than or equal to L1 and less than or equal to 8, and h1.
Specifically, fig. 3 shows a schematic structural diagram of a liquid reservoir according to an embodiment of the present utility model, where the liquid reservoir includes a housing 3 and a lower end cover 32, the lower end cover 32 is provided with two exhaust ports 31, and any exhaust port 31 is connected to the composite conduit assembly.
Specifically, the duct 1 is welded and fixed at the position of the exhaust port 31 of the housing 3 based on the housing connecting portion 12, that is, the housing connecting portion 12 contacts with the exhaust port 31 and is connected and fixed based on welding, and the housing connecting portion 12 may be welded to the exhaust port 31 of the housing 3 by using furnace brazing, so that the connection convenience of the duct 1 and the housing 3 may be improved.
Further, the nozzle connecting portion 11 and the first connecting sleeve 21 of the conduit 1 may be welded and fixed by furnace passing brazing, and the housing connecting portion 12 and the reservoir air outlet 31 may be welded and fixed at the same time, thereby improving the welding efficiency.
Embodiment two:
fig. 4 shows a schematic structural diagram of a housing connection portion according to an embodiment of the present utility model, in this embodiment, the housing connection portion 12 is sleeved with a second connecting sleeve 22, a diameter of the housing connection portion 12 is D2, a diameter of the catheter 1 is D, and a constraint relationship between D2 and D is: d2 is greater than or equal to 0.9 and less than or equal to 1.1, that is, the circumferential outer wall portion of the conduit 1 is recessed to form the shell connecting portion 12, so as to facilitate the sleeve connection and fixation of the second connecting sleeve 22; or the circumferential outer wall portion of the catheter 1 is protruded to form the housing connecting portion 12, the connection stability of the housing connecting portion 12 and the reservoir housing can be improved.
Specifically, the second connecting sleeve 22 may be connected to the reservoir housing based on welding, and the welding manner may be flame brazing or high-frequency brazing, which is simple and convenient to operate, and can adopt multiple flames to perform welding operation at the same time.
Further, by providing the second connecting sleeve 22 to be sleeved on the housing connecting portion 12, the welding quality between the housing connecting portion 12 and the exhaust port 31 can be improved, thereby improving the connection air tightness between the housing 3 and the conduit 1.
Further, the structural matching relationship between the second connecting sleeve 22 and the housing connecting portion 12 is the same as the structural matching relationship between the first connecting sleeve 21 and the nozzle connecting portion 11, and specific reference may be made to the structural relationship and the functional effect between the first connecting sleeve 21 and the nozzle connecting portion 11, which are not described in detail herein.
Embodiment III:
fig. 5 shows a schematic diagram of a reservoir according to an embodiment of the present utility model, and fig. 6 shows an enlarged schematic diagram of a structure c of fig. 5 according to an embodiment of the present utility model, where the reservoir includes a housing 3, and the housing 3 is provided with the composite catheter assembly; the lower end of the housing 3 is provided with at least one exhaust port 31, and the housing connecting part 12 of the conduit 1 is matched with the position of the exhaust port 31 of the housing 3.
Specifically, the housing 3 is an integrally formed structure, the lower end of the housing 3 forms the exhaust port 31 through spinning, and the integrally formed structure can improve the air tightness of the integral structure of the reservoir housing 3.
Further, in this embodiment, the connection flange 4 is sleeved on the housing connection portion 12 of the catheter 1, and the connection flange 4 may be fixed on the housing connection portion 12 based on welding, so as to improve the stability of the connection structure of the composite catheter assembly.
Specifically, the conduit 1 is fitted on the housing 3 based on the connection flange 4, the connection flanges 4 may be fixed at the exhaust port 31 of the housing 3 through welding, and the welding mode may be resistance welding, that is, electric current is applied between the connection flange 4 and the exhaust port 31 of the housing 3, local heating is performed by generating resistance heat, and welding connection between the connection flange and the exhaust port 31 is performed in a pressurizing mode without adding solder, so that large-scale industrial production is facilitated.
Furthermore, the welding mode can also be argon arc welding, laser welding, double-protection welding or CMT welding, and different welding modes can be selected according to actual processing requirements.
Specifically, the connecting flange 4 may increase the outer diameter of the housing connecting portion 12, and by sleeving the connecting flange 4 on the housing connecting portion 12, the housing connecting portion 12 may be adapted to the exhaust ports 31 with different sizes.
The embodiment of the utility model provides a composite conduit assembly and a liquid reservoir, wherein a copper metal connecting sleeve is sleeved on a conduit 1 made of steel materials, and the welding quality of the conduit 1 and the input end of a compressor is improved through the connecting sleeve, so that the air tightness of a connecting structure of an exhaust pipe of the liquid reservoir and the compressor is ensured, and the composite conduit structure is formed in a sleeved mode, so that the consumption of copper metal on the conduit 1 can be reduced, and the preparation cost of the conduit 1 is reduced.
In addition, while the foregoing has described in detail a composite catheter assembly and reservoir provided by embodiments of the present utility model, specific examples should be employed herein to illustrate the principles and implementations of the present utility model, the above examples being provided solely to assist in understanding the methods of the present utility model and their core ideas; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (10)
1. A composite catheter assembly comprising a catheter and at least one connection sleeve;
one end of the catheter is provided with a pipe orifice connecting part, and the connecting sleeve is sleeved on the pipe orifice connecting part;
the material of the guide pipe is carbon steel, or the material of the guide pipe is stainless steel;
the connecting sleeve is made of copper metal.
2. The composite conduit assembly of claim 1, wherein the conduit is further provided with a housing connection for connecting to a reservoir housing.
3. The composite catheter assembly of claim 2, wherein the connection sleeve is sleeved on the housing connection portion or a connection flange is sleeved on the housing connection portion.
4. The composite conduit assembly of claim 1 wherein the wall thickness of the connection sleeve is t1 and the wall thickness of the conduit is t2;
the constraint relation between t1 and t2 is: t1 is more than or equal to 0.2mm and less than or equal to 2 t2.
5. The composite conduit assembly of claim 1 wherein said nozzle connection has a diameter D1, said connection sleeve has an inner diameter D1, and the constraint relationship between D1 and D1 is: D1-D1 is less than or equal to 0.5mm and less than or equal to 0.5mm.
6. The composite conduit assembly of claim 1 wherein the length of the connection sleeve is h1, the constraint relationship of h1 being: h1 is more than 3mm.
7. The composite conduit assembly of claim 6 wherein the length of the nozzle connection is L1, the constraint relationship between L1 and h1 being: h1 is more than or equal to 0.6 and less than or equal to L1 and less than or equal to 8, and h1.
8. The composite conduit assembly of claim 2, wherein the housing connection has a diameter D2 and the conduit has a diameter D;
the constraint relation between D2 and D is as follows: d2 is 0.9 x.ltoreq.d2 is 1.1 x D.
9. The composite conduit assembly of claim 1 wherein a weld is provided between the conduit and the connection sleeve, the weld having a length L2, the constraint relationship of L2 being: l2 is more than or equal to 3mm.
10. A reservoir comprising a housing having disposed thereon a composite conduit assembly according to any one of claims 1 to 9;
the lower end of the shell is provided with at least one exhaust port, and the shell connecting part of the guide pipe is welded and fixed at the exhaust port position of the shell;
the welding mode is furnace passing brazing, high-frequency welding, flame brazing, resistance welding, argon arc welding, laser welding, two-protection welding or CMT welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223236351.1U CN219606271U (en) | 2022-12-02 | 2022-12-02 | Composite catheter assembly and liquid reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223236351.1U CN219606271U (en) | 2022-12-02 | 2022-12-02 | Composite catheter assembly and liquid reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219606271U true CN219606271U (en) | 2023-08-29 |
Family
ID=87738617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223236351.1U Active CN219606271U (en) | 2022-12-02 | 2022-12-02 | Composite catheter assembly and liquid reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219606271U (en) |
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2022
- 2022-12-02 CN CN202223236351.1U patent/CN219606271U/en active Active
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