CN113878312B - Automobile air conditioner coaxial pipe and processing method thereof - Google Patents
Automobile air conditioner coaxial pipe and processing method thereof Download PDFInfo
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- CN113878312B CN113878312B CN202111281126.7A CN202111281126A CN113878312B CN 113878312 B CN113878312 B CN 113878312B CN 202111281126 A CN202111281126 A CN 202111281126A CN 113878312 B CN113878312 B CN 113878312B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The invention discloses an automobile air conditioner coaxial pipe and a processing method thereof, wherein the automobile air conditioner coaxial pipe comprises a high-pressure sleeve and a low-pressure sleeve, the high-pressure sleeve is connected to the outer side of the low-pressure sleeve through a sealing cover, the low-pressure sleeve comprises an outer pipe body, an inner pipe body, heat exchange pipes and a flow guide column, the outer pipe body is connected to two ends of the inner pipe body, at least one heat exchange pipe is arranged on the side surface of the outer circumference of the inner pipe body, the flow guide column is arranged in the inner pipe body, a low-pressure medium enters the inner pipe body through the outer pipe body on one side and then is shunted to the heat exchange pipes through the flow guide column to exchange heat with a high-pressure medium in the high-pressure sleeve, and the low-pressure medium after heat exchange flows out of the outer pipe body on the other end, so that rapid heat exchange between the high-pressure medium and the low-pressure medium is realized. The method comprises the following steps: low-voltage bushing processing, high-voltage bushing processing, coaxial pipe assembling and coaxial pipe testing. Compared with the existing coaxial tube structure, the coaxial tube has the advantages that the heat exchange efficiency is several times or even higher than that of the heat exchange tubes in the prior art, and the heat exchange area depends on the number of the heat exchange tubes.
Description
Technical Field
The invention relates to an automobile air conditioner coaxial pipe and a processing method thereof.
Background
With the increasing popularity of automobiles, the requirements of energy conservation and environmental protection of automobiles are higher and higher, and automobile air conditioners are indispensable parts of each automobile. The automobile air conditioning system mainly comprises equipment such as a compressor, a condenser, an evaporator and the like and a pipeline system for connecting the equipment, wherein the pipeline system comprises an air conditioning refrigeration pipe, the air conditioning refrigeration pipe also comprises a low-pressure pipe and a high-pressure pipe, the low-pressure pipe of the air conditioner is low in temperature and always heated by an engine cabin, and the high-pressure pipe is high in temperature and needs heat dissipation urgently, so that in order to improve the refrigeration effect of the air conditioner, the high-pressure pipe and the low-pressure pipe are combined together in the prior art, namely the high-pressure pipe (an outer pipe) is sleeved outside the low-pressure pipe (an inner pipe) to form a coaxial pipe which is equivalent to an internal heat exchanger, areas where high-pressure (hot) refrigerant gas and low-pressure (cold) refrigerant gas flow are mutually separated in the coaxial pipe, the flow directions are opposite, high-pressure gaseous refrigerant flows out of the compressor, and low-pressure gaseous refrigerant flows out of the evaporator, when the two meet in the coaxial pipe, the high-pressure gaseous refrigerant is cooled, and the refrigeration efficiency of the air conditioning system is improved.
The coaxial tube in the prior art generally adopts two inside and outside sleeves to realize the heat transfer between high-pressure medium and the low-pressure medium, or in order to improve heat transfer efficiency, increases the purpose that heat transfer fin realized the heat transfer, but heat transfer efficiency is lower.
Disclosure of Invention
The invention aims to provide the technical scheme of the automobile air conditioner coaxial pipe and the processing method thereof aiming at the defects in the prior art, through the design of the structure, a low-pressure medium can be distributed and diffused into each heat exchange pipe through a flow guide pipe, and is subjected to heat exchange treatment through a heat exchange pipe and a high-pressure medium, and flows out after heat exchange.
In order to solve the technical problems, the invention adopts the following technical scheme:
coaxial pipe of vehicle air conditioner, its characterized in that: the high-pressure sleeve is connected to the outer side of the low-pressure sleeve through a sealing cover, the low-pressure sleeve comprises an outer pipe body, an inner pipe body, heat exchange pipes and a flow guide column, the outer pipe body is connected to two ends of the inner pipe body, at least one heat exchange pipe is arranged on the side face of the outer circumference of the inner pipe body, the flow guide column is arranged in the inner pipe body, a low-pressure medium enters the inner pipe body through the outer pipe body on one side, is shunted to the heat exchange pipes through the flow guide column and exchanges heat with a high-pressure medium in the high-pressure sleeve, and the low-pressure medium after heat exchange flows out of the outer pipe body on the other end, so that rapid heat exchange between the high-pressure medium and the low-pressure medium is realized; through the design of above-mentioned structure, can be with low pressure medium in each heat exchange tube through honeycomb duct reposition of redundant personnel diffusion, carry out the heat transfer through heat exchange tube and high-pressure medium and handle, flow after the heat transfer, compare in current coaxial tube structure, this application is several times of heat exchange tube efficiency among the prior art with the coaxial tube heat exchange efficiency, and is higher even, and its heat transfer area depends on the quantity of heat exchange tube, and high-tension bushing can play the effect of protection heat exchange tube simultaneously.
Furthermore, the heat exchange tube is of a flat structure, the heat exchange tube is communicated with the inner tube body, and the heat exchange area between the high-pressure medium and the low-pressure medium can be greatly increased by the design of the heat exchange tube of the flat structure, so that the heat exchange efficiency of the coaxial tube is improved.
Furthermore, the two ends of the heat exchange tube are of inclined structures, so that low-pressure media can be conveniently distributed, diffused and gathered, the low-pressure media can be distributed and diffused when entering the heat exchange tube through the inclined structures, the low-pressure media can rapidly enter the heat exchange tube, and after heat exchange is finished, the low-pressure media can be rapidly gathered through the inclined structures, so that the low-pressure media can be conveniently output.
Furthermore, the heat exchange tube is provided with an inlet and an outlet, the diameter of the inlet is h1, the diameter of the outlet is h2, wherein h1 is more than 5mm and h2 is more than 5mm, and the inlet and the outlet are designed to facilitate the low-pressure medium to enter and exit the heat exchange tube.
Further, a heat exchange layer is arranged on the heat exchange tube, the heat exchange layer is made of stainless steel, carbon steel, copper or aluminum, the thickness of the heat exchange layer is 2-5 mm, and the heat exchange efficiency between a low-pressure medium and a high-pressure medium can be greatly improved through the heat exchange layer.
Furthermore, both ends of the flow guide column are conical structures, the length of the flow guide column is smaller than that of the inner pipe body, and due to the design of the conical structures, after the low-pressure medium enters the inner pipe body, the low-pressure medium is diffused all around under the action of the conical structures and enters the heat exchange pipe, so that the low-pressure medium can enter the heat exchange pipe conveniently and quickly due to the fact that the length of the flow guide column is smaller than that of the inner pipe body.
Furthermore, evenly be provided with the location muscle on the outer circumference side of guide post, evenly be provided with the slot on the circumference of interior body, location muscle and slot phase-match through the design of location muscle and slot, can realize the location installation between guide post and the interior body.
Furthermore, a high-pressure outlet joint and a high-pressure inlet joint are respectively arranged on the two sealing covers, and a high-pressure medium enters the high-pressure sleeve through the high-pressure inlet joint and flows out through the high-pressure outlet joint after heat exchange.
The processing method of the coaxial pipe of the automobile air conditioner is characterized by comprising the following steps:
1) low pressure bushing process
a. Firstly, determining the sizes of an inner pipe body and an outer pipe body according to design requirements, processing the corresponding inner pipe body and the outer pipe body, arranging an inlet and an outlet for low-pressure medium circulation between the inner pipe body and the outer pipe body, wherein the inlet and the outlet are positioned at two ends of the inner pipe body, the inlet or the outlet at the same side are distributed along the circumference of the inner pipe body, and the number of the inlet and the outlet is in one-to-one correspondence, so that the installation of heat exchange pipes is facilitated;
b. then, slots are formed along the inner pipe body in a pressing mode, the slots are distributed along the circumference of the inner pipe body, and the slots are convenient for limiting the positioning ribs so that the guide post is fixedly connected with the inner pipe body;
c. then, corresponding guide columns are processed according to the size of the inner pipe body, two ends of each guide column form a conical structure through cutting processing, positioning ribs matched with the slots are installed along the outer circumferential side surfaces of the guide columns, the processed guide columns are inserted into the inner pipe body, the positioning ribs are limited in the corresponding slots and fixed, the fixed connection between the guide columns and the inner pipe body is realized, and low-pressure media can be shunted through the conical structures;
d. finally, processing a corresponding heat exchange tube according to the space between the inlet and the outlet and the design size of the high-pressure sleeve, wherein the middle part of the heat exchange tube is of a linear flat structure, the two ends of the heat exchange tube are of inclined flat structures, the heat exchange tube is welded on the outer circumferential side surface of the inner tube body by internal central control, and through holes at the two ends of the heat exchange tube are respectively aligned with the inlet and the outlet until all the heat exchange tubes are welded;
2) high voltage bushing machining
a. Firstly, processing a corresponding high-voltage sleeve according to the size of the inner tube body, so that the distance between the inner wall of the high-voltage sleeve and the outer end surface of the heat exchange tube is less than 5 mm;
b. then processing a sealing cover with a proper size according to design requirements, and respectively installing a high-pressure outlet joint and a high-pressure inlet joint on the sealing cover;
3) coaxial pipe assembly
a. Firstly, horizontally placing a low-pressure sleeve, and fixing a sealing cover with a high-pressure inlet joint at a set position on the low-pressure sleeve;
b. then sleeving the processed high-voltage sleeve on the outer side of the low-voltage sleeve until one end of the high-voltage sleeve is fixed on the sealing cover, sleeving the sealing cover with the high-voltage outlet joint on a set position of the low-voltage sleeve, and sealing and fixing the two sealing covers and the high-voltage sleeve by welding;
4) coaxial tube testing
The assembled coaxial pipe is horizontally placed, two ends of the low-pressure sleeve are connected with the refrigerant, two ends of the high-pressure sleeve are connected with the heat medium, the refrigerant and the heat medium are respectively injected into the low-pressure sleeve and the high-pressure sleeve, and heat exchange efficiency of the refrigerant and the heat medium is detected.
The processing method has simple process steps, not only can improve the heat exchange efficiency of the coaxial tube by welding a plurality of heat exchange tubes with flat structures, but also has stable and reliable structure and convenient manufacture.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. through the design of above-mentioned structure, can be with low pressure medium in each heat exchange tube through honeycomb duct reposition of redundant personnel diffusion, carry out the heat transfer through heat exchange tube and high-pressure medium and handle, flow after the heat transfer, compare in current coaxial tube structure, this application is several times of heat exchange tube efficiency among the prior art with the coaxial tube heat exchange efficiency, and is higher even, and its heat transfer area depends on the quantity of heat exchange tube, and high-tension bushing can play the effect of protection heat exchange tube simultaneously.
2. The heat exchange tube design of flat structure can greatly increased the heat transfer area between high pressure medium and the low pressure medium, improves the heat exchange efficiency of coaxial pipe.
3. The design of slope structure can shunt the diffusion when the low pressure medium gets into the heat exchange tube, makes the low pressure medium get into the heat exchange tube fast, and the back is accomplished in the heat transfer, can make the low pressure medium assemble fast through the slope structure, the output of the low pressure medium of being convenient for.
4. The design of conical structure can make low pressure medium get into interior body after, to spread all around under conical structure's effect, makes low pressure medium get into in the heat exchange tube, therefore the length of guide post is less than the length of interior body and can be convenient for low pressure medium and get into the heat exchange tube fast.
5. The processing method has simple process steps, not only can improve the heat exchange efficiency of the coaxial tube by welding a plurality of heat exchange tubes with flat structures, but also has stable and reliable structure and convenient manufacture.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a view showing the effect of a coaxial pipe for an automobile air conditioner and a method for manufacturing the same according to the present invention;
FIG. 2 is a schematic view showing the internal structure of a coaxial pipe according to the present invention;
FIG. 3 is a schematic cross-sectional view of a coaxial tube according to the present invention;
fig. 4 is a partial enlarged view of the point i in fig. 3.
In the figure: 1-a low-pressure bushing; 2-high voltage bushing; 3-sealing the cover; 4-a high pressure outlet connection; 5-high pressure inlet joint; 6-inner tube body; 7-a flow guide column; 8-heat exchange tube; 9-an outer body; 10-heat exchange layer; 11-a slot; 12-positioning ribs; 13-an inlet; 14-outlet.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terms first, second and the like in the description and in the claims, and in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
As shown in fig. 1 to 4, the coaxial tube for an automobile air conditioner according to the present invention includes a high pressure sleeve 2 and a low pressure sleeve 1, the high pressure sleeve 2 is connected to the outside of the low pressure sleeve 1 through a sealing cover 3, the low pressure sleeve 1 includes an outer tube 9, an inner tube 6, heat exchange tubes 8 and a guide post 7, the outer tube 9 is connected to two ends of the inner tube 6, at least one heat exchange tube 8 is disposed on the outer circumferential side of the inner tube 6, preferably, 6 heat exchange tubes 8 with the same size are adopted in the present application, and the structures of the heat exchange tubes 8 are the same.
The heat exchange tube 8 is a flat structure, the heat exchange tube 8 is communicated with the inner tube 6, and the heat exchange tube 8 with the flat structure is designed, so that the heat exchange area between a high-pressure medium and a low-pressure medium can be greatly increased, and the heat exchange efficiency of the coaxial tube is improved. The both ends of heat exchange tube 8 are the slope structure, and the reposition of redundant personnel diffusion of the low pressure medium of being convenient for with assemble, the design of slope structure can be shunted the diffusion when the low pressure medium gets into heat exchange tube 8, makes the low pressure medium get into heat exchange tube 8 fast, after the heat exchange, can make the low pressure medium assemble fast through the slope structure, the output of the low pressure medium of being convenient for. The heat exchange tube 8 is provided with an inlet 13 and an outlet 14, the diameter of the inlet 13 is h1, the diameter of the outlet 14 is h2, wherein the diameter of the inlet 13 is more than 5mm and less than h1 and less than h2, and the design of the inlet 13 and the outlet 14 is convenient for low-pressure medium to enter and exit the heat exchange tube 8. The heat exchange layer 10 is arranged on the heat exchange tube 8, the heat exchange layer 10 is made of stainless steel, carbon steel, copper or aluminum, the thickness of the heat exchange layer 10 is 2-5 mm, and the heat exchange efficiency between a low-pressure medium and a high-pressure medium can be greatly improved through the heat exchange layer 10.
The guide column 7 is arranged in the inner pipe body 6, low-pressure media enter the inner pipe body 6 through the outer pipe body 9 on one side, then are shunted to the heat exchange pipe 8 through the guide column 7 to exchange heat with high-pressure media in the high-pressure sleeve 2, and the low-pressure media after heat exchange flow out of the outer pipe body 9 on the other end, so that rapid heat exchange between the high-pressure media and the low-pressure media is realized; through the design of above-mentioned structure, can with low pressure medium in each heat exchange tube 8 through honeycomb duct reposition of redundant personnel diffusion, carry out the heat transfer through heat exchange tube 8 and high-pressure medium and handle, flow after the heat transfer, compare in current coaxial tube structure, this application is several times of heat exchange tube 8 efficiency among the prior art with the pipe heat exchange efficiency, and is higher even, and its heat transfer area depends on the quantity of heat exchange tube 8, and high-voltage bushing 2 can play the effect of protection heat exchange tube 8 simultaneously.
The two ends of the flow guide column 7 are both conical structures, the length of the flow guide column 7 is smaller than that of the inner pipe body 6, and due to the design of the conical structures, low-pressure media can be diffused around under the action of the conical structures after entering the inner pipe body 6, so that the low-pressure media enter the heat exchange pipe 8, and therefore the length of the flow guide column 7 is smaller than that of the inner pipe body 6, and the low-pressure media can conveniently and quickly enter the heat exchange pipe 8.
Evenly be provided with location muscle 12 on the outer circumference side of guide post 7, evenly be provided with slot 11 on the circumference of interior body 6, location muscle 12 and slot 11 phase-match, through the design of location muscle 12 and slot 11, can realize the location installation between guide post 7 and interior body 6.
And the two sealing covers 3 are respectively provided with a high-pressure outlet joint 4 and a high-pressure inlet joint 5, a high-pressure medium enters the high-pressure sleeve 2 through the high-pressure inlet joint 5, and flows out through the high-pressure outlet joint 4 after heat exchange.
The processing method of the coaxial pipe of the automobile air conditioner comprises the following steps:
1) low-pressure bushing 1 machining
a. Firstly, determining the sizes of an inner pipe body 6 and an outer pipe body 9 according to design requirements, processing the corresponding inner pipe body 6 and the corresponding outer pipe body 9, arranging an inlet 13 and an outlet 14 for low-pressure medium circulation between the inner pipe body 6 and the outer pipe body 9, wherein the inlet 13 and the outlet 14 are positioned at two ends of the inner pipe body 6, the inlet 13 or the outlet 14 at the same side are distributed along the circumference of the inner pipe body 6, and the inlet 13 and the outlet 14 are in one-to-one correspondence in number, so that the heat exchange pipes 8 are convenient to install;
b. then, the slots 11 are formed along the inner pipe body 6 in a pressing mode, the slots 11 are distributed along the circumference of the inner pipe body 6, and the insertion openings are convenient for limiting the positioning ribs 12, so that the guide column 7 is fixedly connected with the inner pipe body 6;
c. then, a corresponding guide post 7 is processed according to the size of the inner pipe body 6, two ends of the guide post 7 form a conical structure through cutting processing, positioning ribs 12 matched with the slots 11 are installed along the outer circumferential side surface of the guide post 7, the processed guide post 7 is inserted into the inner pipe body 6, the positioning ribs 12 are limited in the corresponding slots 11 to be fixed, the fixed connection between the guide post 7 and the inner pipe body 6 is realized, and a low-pressure medium can be shunted through the conical structure;
d. finally, processing the corresponding heat exchange tube 8 according to the space between the inlet 13 and the outlet 14 and the design size of the high-voltage sleeve 2, wherein the middle part of the heat exchange tube 8 is of a linear flat structure, the two ends of the heat exchange tube 8 are of inclined flat structures, the inside is controlled, the heat exchange tube 8 is welded on the outer circumferential side surface of the inner tube body 6, and through holes at the two ends of the heat exchange tube 8 are respectively aligned with the inlet 13 and the outlet 14 until all the heat exchange tubes 8 are welded;
2) high voltage bushing 2 machining
a. Firstly, processing a corresponding high-pressure sleeve 2 according to the size of the inner tube body 6, so that the distance between the inner wall of the high-pressure sleeve 2 and the outer end surface of the heat exchange tube 8 is less than 5 mm;
b. then processing a sealing cover 3 with a proper size according to design requirements, and respectively installing a high-pressure outlet joint 4 and a high-pressure inlet joint 5 on the sealing cover 3;
3) coaxial pipe assembly
a. Firstly, horizontally placing a low-pressure sleeve 1, and fixing a sealing cover 3 with a high-pressure inlet joint 5 at a set position on the low-pressure sleeve 1;
b. then, sleeving the processed high-voltage sleeve 2 on the outer side of the low-voltage sleeve 1 until one end of the high-voltage sleeve 2 is fixed on the sealing cover 3, sleeving the sealing cover 3 with the high-voltage outlet connector 4 on a set position of the low-voltage sleeve 1, and sealing and fixing the two sealing covers 3 and the high-voltage sleeve 2 by welding;
4) coaxial tube testing
The assembled coaxial pipes are horizontally placed, two ends of the low-voltage sleeve 1 are connected with the refrigerant, two ends of the high-voltage sleeve 2 are connected with the heat medium, the refrigerant and the heat medium are respectively injected into the low-voltage sleeve 1 and the high-voltage sleeve 2, and heat exchange efficiency of the refrigerant and the heat medium is detected.
The processing method has simple process steps, not only can improve the heat exchange efficiency of the coaxial pipe by welding a plurality of heat exchange pipes 8 with flat structures, but also has stable and reliable structure and convenient manufacture.
The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (8)
1. The processing method of the coaxial pipe of the automobile air conditioner is characterized by comprising the following steps: the automobile air conditioner coaxial pipe comprises a high-pressure sleeve and a low-pressure sleeve, the high-pressure sleeve is connected to the outer side of the low-pressure sleeve through a sealing cover, the low-pressure sleeve comprises an outer pipe body, an inner pipe body, heat exchange pipes and flow guide columns, the outer pipe body is connected to two ends of the inner pipe body, at least one heat exchange pipe is arranged on the side face of the outer circumference of the inner pipe body, the flow guide columns are arranged in the inner pipe body, a low-pressure medium enters the inner pipe body through the outer pipe body on one side, is shunted to the heat exchange pipes through the flow guide columns and exchanges heat with a high-pressure medium in the high-pressure sleeve, and the low-pressure medium after heat exchange flows out of the outer pipe body on the other end, so that rapid heat exchange between the high-pressure medium and the low-pressure medium is realized, and the automobile air conditioner coaxial pipe comprises the following steps:
1) low pressure bushing process
a. Firstly, determining the sizes of an inner pipe body and an outer pipe body according to design requirements, processing the corresponding inner pipe body and the outer pipe body, arranging an inlet and an outlet for low-pressure medium circulation between the inner pipe body and the outer pipe body, wherein the inlet and the outlet are positioned at two ends of the inner pipe body, and the inlet or the outlet at the same side is distributed along the circumference of the inner pipe body;
b. then, pressing the inner pipe body to form inserting slots, wherein the inserting slots are distributed along the circumference of the inner pipe body;
c. then, corresponding guide columns are processed according to the size of the inner pipe body, two ends of each guide column form a conical structure through cutting processing, positioning ribs matched with the slots are installed along the outer circumferential side surfaces of the guide columns, the processed guide columns are inserted into the inner pipe body, the positioning ribs are limited in the corresponding slots and fixed, and the guide columns are fixedly connected with the inner pipe body;
d. finally, processing a corresponding heat exchange tube according to the space between the inlet and the outlet and the design size of the high-pressure sleeve, wherein the middle part of the heat exchange tube is of a linear flat structure, the two ends of the heat exchange tube are of inclined flat structures, the heat exchange tube is welded on the outer circumferential side surface of the inner tube body by internal central control, and through holes at the two ends of the heat exchange tube are respectively aligned with the inlet and the outlet until all the heat exchange tubes are welded;
2) high voltage bushing machining
a. Firstly, processing a corresponding high-voltage sleeve according to the size of the inner tube body, so that the distance between the inner wall of the high-voltage sleeve and the outer end surface of the heat exchange tube is less than 5 mm;
b. then processing a sealing cover with a proper size according to design requirements, and respectively installing a high-pressure outlet joint and a high-pressure inlet joint on the sealing cover;
3) coaxial pipe assembly
a. Firstly, horizontally placing a low-pressure sleeve, and fixing a sealing cover with a high-pressure inlet joint at a set position on the low-pressure sleeve;
b. then sleeving the processed high-voltage sleeve on the outer side of the low-voltage sleeve until one end of the high-voltage sleeve is fixed on the sealing cover, sleeving the sealing cover with the high-voltage outlet joint on a set position of the low-voltage sleeve, and sealing and fixing the two sealing covers and the high-voltage sleeve by welding;
4) coaxial tube testing
The assembled coaxial pipes are horizontally placed, two ends of the low-voltage sleeve are connected with the refrigerant, two ends of the high-voltage sleeve are connected with the heat medium, the refrigerant and the heat medium are respectively injected into the low-voltage sleeve and the high-voltage sleeve, and the heat exchange efficiency of the refrigerant and the heat medium is detected.
2. The processing method of the coaxial pipe of the automobile air conditioner as claimed in claim 1, wherein: the heat exchange tube is of a flat structure and is communicated with the inner tube body.
3. The processing method of the coaxial pipe of the automobile air conditioner as claimed in claim 2, characterized in that: the two ends of the heat exchange tube are of inclined structures, so that the low-pressure medium can be conveniently distributed, diffused and converged.
4. The processing method of the coaxial pipe for the air conditioner of the automobile as set forth in claim 2, wherein: the heat exchange tube is provided with an inlet and an outlet, the diameter of the inlet is h1, the diameter of the outlet is h2, and h1 and h2 are both more than 5 mm.
5. The processing method of the coaxial pipe of the automobile air conditioner as claimed in claim 2, characterized in that: the heat exchange tube is provided with a heat exchange layer, and the heat exchange layer is made of stainless steel, carbon steel, copper or aluminum.
6. The processing method of the coaxial pipe of the automobile air conditioner as claimed in claim 1, wherein: both ends of the flow guide column are of conical structures, and the length of the flow guide column is smaller than that of the inner pipe body.
7. The processing method of the coaxial pipe of the automobile air conditioner as claimed in claim 6, characterized in that: positioning ribs are evenly arranged on the side face of the outer circumference of the flow guide column, slots are evenly arranged on the circumference of the inner pipe body, and the positioning ribs are matched with the slots.
8. The processing method of the coaxial pipe of the automobile air conditioner as claimed in claim 1, wherein: and the two sealing covers are respectively provided with a high-pressure outlet joint and a high-pressure inlet joint.
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4096616A (en) * | 1976-10-28 | 1978-06-27 | General Electric Company | Method of manufacturing a concentric tube heat exchanger |
| CN2923045Y (en) * | 2006-05-08 | 2007-07-18 | 马玉民 | Atomizing nozzle device |
| CN102435019A (en) * | 2011-12-19 | 2012-05-02 | 无锡同方人工环境有限公司 | Coaxial double-pipe heat exchanger for water source heat pump unit |
| CN202382487U (en) * | 2011-12-19 | 2012-08-15 | 无锡同方人工环境有限公司 | Coaxial double-pipe heat exchanger for water source heat pump unit |
| CN207916511U (en) * | 2018-03-19 | 2018-09-28 | 烟台东星空调管路有限公司 | A kind of coaxitron used for automobile air conditioning |
| CN208349894U (en) * | 2018-06-27 | 2019-01-08 | 孔天润 | Novel multi-tube coaxial heat-exchanger rig |
| CN111765784B (en) * | 2020-06-08 | 2021-11-30 | 中石化宁波工程有限公司 | Single-tube-pass floating head type heat exchanger |
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| CN113878312A (en) | 2022-01-04 |
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