CN210773631U - Plate heat exchanger attach fitting - Google Patents
Plate heat exchanger attach fitting Download PDFInfo
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- CN210773631U CN210773631U CN201920949079.0U CN201920949079U CN210773631U CN 210773631 U CN210773631 U CN 210773631U CN 201920949079 U CN201920949079 U CN 201920949079U CN 210773631 U CN210773631 U CN 210773631U
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- stainless steel
- copper
- copper bush
- heat exchanger
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Abstract
The utility model discloses a plate heat exchanger attach fitting, including stainless steel takeover and copper bush, the stainless steel interface is equipped with the flaring section, the flaring section that the stainless steel was taken over is located to the copper bush, the inner wall that the stainless steel was taken over is hugged closely to the copper bush, copper bush and stainless steel takeover welded fastening, the flaring section inboard that the stainless steel was taken over is equipped with bronze and welds the ring, the inner wall that the stainless steel was taken over and copper bush's bottom is hugged closely to bronze and welds the ring, make when welding stainless steel was taken over and copper bush, regard as the solder with bronze to weld the ring, make stainless steel takeover and copper bush welding firm through melting bronze welding ring. The utility model discloses set up the copper bush in the stainless steel is taken over more easily, realize the reliable being connected of stainless steel takeover and copper pipe through the welding of copper bush and copper pipe.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, especially, relate to a plate heat exchanger attach fitting.
Background
Products in the refrigeration technology field include household air conditioners, refrigerators, freezers and the like, generally, copper pipes are used as connecting pipes for connecting two parts of the systems, and in order to be conveniently connected with the copper pipes, a plurality of parts are correspondingly made of copper materials. The plate heat exchanger is a high-efficiency heat exchanger formed by stacking a series of metal sheets with certain corrugated shapes. Thin rectangular channels are formed between the various plates through which heat is exchanged. The plate heat exchanger is an ideal device for heat exchange of liquid-liquid and liquid-vapor. The plate heat exchanger is mainly made of stainless steel connecting pipes, so that how to realize reliable connection between the stainless steel connecting pipes and copper pipes is a problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solves the above-mentioned technical problem that exists among the prior art, provides a plate heat exchanger attach fitting, can realize that the stainless steel is taken over and the copper intertube is reliably connected, and reduce cost improves production efficiency.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a plate heat exchanger attach fitting, includes that stainless steel is taken over and copper bush, and the stainless steel interface is equipped with the flaring section, and during the flaring section that stainless steel was taken over was located to the copper bush, the inner wall that stainless steel was taken over was hugged closely to the copper bush, and welded fastening is taken over with the stainless steel to the copper bush, sets up the flaring section and makes and set up the copper bush in stainless steel is taken over more easily, realizes the reliable connection of stainless steel takeover and copper pipe through the welding of copper bush and copper pipe.
Further, the inside of the flaring section of the stainless steel connecting pipe is provided with a bronze welding ring, and the bronze welding ring is tightly attached to the inner wall of the stainless steel connecting pipe and the bottom end of the copper bush, so that when the stainless steel connecting pipe and the copper bush are welded, the bronze welding ring is used as a welding flux, and the stainless steel connecting pipe and the copper bush are firmly welded by melting the bronze welding ring.
Furthermore, the outer side of the copper bush is flush with the outer side of the stainless steel connecting pipe, so that the stainless steel connecting pipe is more attractive in appearance.
Further, the bottom end of the flaring section is provided with an arc guide angle which can clamp the bronze welding ring.
Further, the melting point of the copper bush is 1083 ℃, the melting point of the bronze welding ring is 1020 ℃, so that only the bronze welding ring is melted and the copper bush is not melted during welding.
Further, an upper pressure plate is connected to the stainless steel connecting pipe, and one end of the stainless steel connecting pipe is connected to the bottom of the upper pressure plate in an expanding mode; this connector structure is simple, and the practicality is strong, and the material is extravagant few, compares the plate heat exchanger's of direct purchase screwed joint, and the cost of manufacture is low, economical and practical, the batch production of being convenient for.
Furthermore, the upper pressure plate is provided with the reinforcing ring, the reinforcing ring is arranged on the stainless steel connecting pipe, the effect of fixedly supporting the stainless steel connecting pipe is achieved, meanwhile, the connecting strength of the stainless steel connecting pipe and the upper pressure plate is increased, the sealing performance of the connecting position of the reinforcing ring and the stainless steel connecting pipe is enhanced, and the sealing performance of the connecting position of the upper pressure plate and the stainless steel connecting pipe is enhanced.
Furthermore, a copper foil is arranged between the upper pressing plate and the reinforcing ring and is used as a welding flux, the reinforcing ring is welded at the bottom of the upper pressing plate, the reinforcing ring plays a role in fixedly supporting the stainless steel connecting pipe, meanwhile, the connecting strength of the stainless steel connecting pipe and the upper pressing plate is increased, and the sealing performance of the connecting position of the upper pressing plate and the stainless steel connecting pipe is enhanced.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
1) the utility model discloses set up the flaring section and make and set up the copper bush more easily in stainless steel is taken over, weld the ring through bronze and weld the copper bush on stainless steel is taken over for the stainless steel is taken over can with the easier welding of copper pipe, and the welding degree of difficulty of copper and copper is less than the welding degree of difficulty of copper and stainless steel far away.
2) The stainless steel connecting pipe is connected with the copper pipe in a brazing mode, Ag30 is adopted for brazing, the cost is high, and 2% of low-silver brazing filler metal is only needed for brazing the copper and the copper, so that the cost is low, and the welding is easy.
3) The copper and the copper brazing are easier to weld and have high production efficiency.
4) The copper and the copper brazing do not need to add auxiliary agents, can be directly brazed, and simultaneously has no residual flux.
5) The copper is connected with the copper, the solderability of the soldering phase is excellent, the wettability is good, and the filling of the solder is uniform.
6) The corrosion resistance of the welding seam is improved.
In conclusion, the utility model discloses at flaring section inside lining copper bush to preset bronze and weld the ring, weld through the stove and connect and form, thereby it is sealed to be connected the brazing that reaches the same kind of material with plate heat exchanger to reach user's refrigeration air conditioning system's pipeline spare, makes the copper pipe more reliable with being connected of stainless steel takeover, saves the cost, and the solder flux is remained to the nothing, and production efficiency is high.
The utility model adopts the expansion joint process to expand one end of the stainless steel connecting pipe on the upper pressure plate, and the upper pressure plate and one end of the stainless steel connecting pipe generate certain extrusion pressure to be tightly attached together, thereby achieving the purpose of sealing, fastening and connecting and having low cost; and the copper foil is used as a welding flux, the reinforcing ring is welded at the bottom of the upper pressure plate, the reinforcing ring plays a role in fixedly supporting the stainless steel connecting pipe, the connecting strength of the stainless steel connecting pipe and the upper pressure plate is increased, and the sealing property of the connecting part of the upper pressure plate and the stainless steel connecting pipe is enhanced. The utility model discloses simple structure, the practicality is strong, and the material is extravagant few, and the cost of manufacture is low, economical and practical, the batch production of being convenient for.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a plate heat exchanger joint of the present invention;
FIG. 2 is a schematic structural view of the welding process of the present invention;
fig. 3 is a schematic structural view of the copper pipe connection of the present invention.
In the figure, 1-stainless steel adapter tube; 2-copper bush; 3-flaring section; 4-bronze weld ring; 5-arc guide angle; 6-a reinforcing ring; 7-an upper pressing plate; 8-copper foil.
Detailed Description
As shown in fig. 1 to 3, do the utility model relates to a plate heat exchanger attach fitting, take over 1 and copper bush 2 including the stainless steel, the stainless steel interface is equipped with flaring section 3, during stainless steel takeover 1's flaring section 3 was located to copper bush 2, the inner wall of stainless steel takeover 1 was hugged closely to copper bush 2, copper bush 2 and stainless steel takeover 1 welded fastening, set up flaring section 3 and make and set up copper bush 2 in stainless steel takeover 1 more easily, realize through the welding of copper bush 2 and copper pipe that stainless steel takeover 1 and copper pipe are reliably connected.
The melting point of the copper bush 2 is 1083 ℃, the melting point of the bronze welding ring 4 is 1020 ℃, so that only the bronze welding ring 4 is melted but the copper bush 2 is not melted during welding, the bronze welding ring 4 is arranged on the inner side of the flaring section 3 of the stainless steel connecting pipe 1, the bronze welding ring 4 is tightly attached to the inner wall of the stainless steel connecting pipe 1 and the bottom end of the copper bush 2, so that the bronze welding ring 4 is used as a welding flux when the stainless steel connecting pipe 1 and the copper bush 2 are welded, and the bronze welding ring 4 is melted to enable the stainless steel connecting pipe 1 to be firmly welded with the copper bush 2.
The outer side of the copper bush 2 is flush with the outer side of the stainless steel connecting pipe 1, so that the stainless steel connecting pipe 1 is more attractive in appearance.
The bottom end of the flaring section 3 is provided with an arc guide angle 5 which can clamp the bronze welding ring 4.
An upper pressure plate 7 is connected to the stainless steel connecting pipe 1, and one end of the stainless steel connecting pipe 1 is connected to the bottom of the upper pressure plate 7 in an expanding mode; this connector structure is simple, and the practicality is strong, and the material is extravagant few, compares the plate heat exchanger's of direct purchase screwed joint, and the cost of manufacture is low, economical and practical, the batch production of being convenient for.
Be equipped with reinforcing ring 6 on the top board 7, on stainless steel takeover 1 was located to reinforcing ring 6, played the effect that fixed stay stainless steel takeover 1, increased the intensity that stainless steel takeover 1 and top board 7 are connected simultaneously, not only strengthened the leakproofness of reinforcing ring 6 and stainless steel takeover 1 junction, strengthened the leakproofness of top board 7 and stainless steel takeover 1 junction moreover.
Be equipped with copper foil 8 between top board 7 and the reinforcing ring 6, copper foil 8 is as the solder, with reinforcing ring 6 welding in the bottom of top board 7, and reinforcing ring 6 plays the effect of fixed stay stainless steel takeover 1, has increased the intensity that stainless steel takeover 1 and top board 7 are connected simultaneously, has strengthened the leakproofness of top board 7 and stainless steel takeover 1 junction moreover.
The copper bush 2 is welded on the stainless steel connecting pipe 1 through the bronze welding ring 4, so that the stainless steel connecting pipe 1 can be easily welded with a copper pipe, and the welding difficulty of copper and copper is far lower than that of copper and stainless steel; the stainless steel connecting pipe 1 is connected with the copper pipe by brazing, Ag30 is adopted for brazing, the cost is high, and the cost is low because 2% of low-silver brazing filler metal is only needed for brazing the copper and the copper; copper and copper brazing are easier to weld and the production efficiency is high; copper and copper brazing do not need to add auxiliary agents, can be directly brazed, and meanwhile, flux remains; the corrosion resistance of the welding line is improved; the copper is connected with the copper, the solderability of the soldering phase is excellent, the wettability is good, and the filling of the solder is uniform. The utility model discloses at 3 inside lining copper bush 2 in flaring section to preset bronze and weld ring 4, weld through the stove and connect and form, thereby it is sealed to be connected the brazing that reaches the same kind of material with plate heat exchanger to reach the pipeline spare of user's refrigeration air conditioning system, makes copper pipe and stainless steel takeover 1 be connected more reliably, saves the cost, and the solder flux is remained to the nothing, and production efficiency is high.
The utility model adopts the expansion joint process to expand one end of the stainless steel connecting pipe 1 onto the upper pressure plate 7, and the upper pressure plate 7 and one end of the stainless steel connecting pipe 1 generate certain squeezing pressure to be tightly attached together, thereby achieving the purpose of sealing, fastening and connecting, and having low cost; and then the copper foil 8 is used as a welding material, the reinforcing ring 6 is welded at the bottom of the upper pressure plate 7, the reinforcing ring 6 plays a role in fixedly supporting the stainless steel connecting pipe 1, meanwhile, the connecting strength of the stainless steel connecting pipe 1 and the upper pressure plate 7 is increased, and the sealing performance of the connecting part of the upper pressure plate 7 and the stainless steel connecting pipe 1 is enhanced. The utility model discloses simple structure, the practicality is strong, and the material is extravagant few, and the cost of manufacture is low, economical and practical, the batch production of being convenient for.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.
Claims (7)
1. The plate heat exchanger connecting joint comprises a stainless steel connecting pipe and is characterized in that: still include the copper bush, the stainless steel interface is equipped with the flaring section, the copper bush is located in the flaring section that the stainless steel was taken over, the copper bush hugs closely the inner wall that the stainless steel was taken over, the copper bush with welded fastening is taken over to the stainless steel, be connected with the top board on the stainless steel was taken over, the one end expanded joint that the stainless steel was taken over is in the bottom of top board.
2. A plate heat exchanger joint according to claim 1, characterized in that: and a bronze welding ring is arranged on the inner side of the flaring section of the stainless steel connecting pipe, and the bronze welding ring is tightly attached to the inner wall of the stainless steel connecting pipe and the bottom end of the copper bush.
3. A plate heat exchanger joint according to claim 1, characterized in that: the outer side of the copper bush is flush with the outer side of the stainless steel connecting pipe.
4. A plate heat exchanger joint according to claim 1, characterized in that: and an arc guide angle is arranged at the bottom end of the flaring section.
5. A plate heat exchanger joint according to claim 2, characterized in that: the melting point of the copper bush is 1083 ℃, and the melting point of the bronze welding ring is 1020 ℃.
6. A plate heat exchanger joint according to claim 1, characterized in that: and the upper pressure plate is provided with a reinforcing ring, and the reinforcing ring is arranged on the stainless steel connecting pipe.
7. A plate heat exchanger attach fitting according to claim 6, wherein: and a copper foil is arranged between the upper pressing plate and the reinforcing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920949079.0U CN210773631U (en) | 2019-06-23 | 2019-06-23 | Plate heat exchanger attach fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920949079.0U CN210773631U (en) | 2019-06-23 | 2019-06-23 | Plate heat exchanger attach fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210773631U true CN210773631U (en) | 2020-06-16 |
Family
ID=71038904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920949079.0U Active CN210773631U (en) | 2019-06-23 | 2019-06-23 | Plate heat exchanger attach fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210773631U (en) |
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2019
- 2019-06-23 CN CN201920949079.0U patent/CN210773631U/en active Active
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