CN104729349A - Copper sleeve structure and tube-bundle tube-in-tube heat exchanger - Google Patents
Copper sleeve structure and tube-bundle tube-in-tube heat exchanger Download PDFInfo
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- CN104729349A CN104729349A CN201310722536.XA CN201310722536A CN104729349A CN 104729349 A CN104729349 A CN 104729349A CN 201310722536 A CN201310722536 A CN 201310722536A CN 104729349 A CN104729349 A CN 104729349A
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- copper sheathing
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Abstract
The invention provides a copper sleeve structure and a tube-bundle tube-in-tube heat exchanger. The copper sleeve structure comprises a first copper sleeve and a first cap. The first copper sleeve comprises a first copper sleeve body and a first copper sleeve tail; the inner diameter of the first copper sleeve tail is greater than that of the first copper sleeve body; the first cap is nested in the first copper sleeve tail and is fixedly welded; the first copper sleeve body and the first copper sleeve tail are integrated. Sealing of a copper sleeve and the cap is optimally designed; distances of welding spots are increased to avoid the influence of secondary welding heat; the cap is put in the copper sleeve and fitly welded, operating is easy, and strength of welding parts is enhanced.
Description
Technical field
The present invention relates to field of heat exchangers, particularly relate to a kind of copper sheathing structure for heat exchanger and bundled tube double-tube heat exchanger.
Background technology
Bundled tube double-tube heat exchanger by outer steel pipe and in wear a kind of heat exchanger that many heat exchange copper tubes form, it mainly plays the effect of heat-shift in air-conditioning, refrigerant walked by many in heat exchanger little copper pipes, steel pipe and little plumbers shed are leaked water, and bundled tube double-tube heat exchanger can be divided into single, double fluorine road double-tube heat exchanger.
See Fig. 1, the first fluorine road system in the bundled tube double-tube heat exchanger of Shuan Fu road and the copper sheathing in the second fluorine road system and the hermetically-sealed construction of capping weld after being generally during fabrication and the first copper sheathing 1, first capping 2, second copper sheathing 3 and the second capping 4 being docked again, and this fit structure exists some deficiency:
1, the welding hypotelorism of the first copper sheathing 1, first capping 2 and the second copper sheathing 3, during welding larger because of copper sheathing caliber, the heat time is long, can produce larger heat affecting to welding line.The secondary that welding produces is heated, and easily causes welding to leak;
2, during welding, copper sheathing and capping cooperation place solder mostly are and are deposited in surface, are difficult to incorporate in weld seam, easily cause failure welding to cause heat exchanger coolant leakage;
3, the second copper sheathing 1 is with the first capping 2 for contact point welds, and after welding, compressive strength is inadequate, and collision or assembling use easily splits leakage by the long-term of complete machine coolant system by pressure weld.
Therefore a kind of copper sheathing structure easy to operate, that excellent sealing effect can be ensured is provided to be very urgent demand.
Summary of the invention
In order to overcome above-mentioned deficiency, the object of this invention is to provide a kind of copper sheathing structure and bundled tube double-tube heat exchanger.
Technical scheme of the present invention is as follows:
A kind of copper sheathing structure, comprise the first copper sheathing and the first capping, described first copper sheathing comprises the first copper sheathing main body and the first copper sheathing afterbody, and the internal diameter of described first copper sheathing afterbody is greater than the internal diameter of described first copper sheathing main body;
Described first capping is sleeved on the inside of described first copper sheathing afterbody and is welded and fixed;
Described first copper sheathing main body and described first copper sheathing afterbody one-body molded.
Wherein in an embodiment, the internal diameter 1mm to 2mm larger than the external diameter of described first capping of described first copper sheathing afterbody.
Wherein in an embodiment, described first capping is arranged on the intersection of described first copper sheathing main body and described first copper sheathing afterbody.
Wherein in an embodiment, the length of described first copper sheathing afterbody is 15mm to 30mm.
Wherein in an embodiment, described first capping is provided with the first through hole passed through for heat exchange copper tube, the edge of described first through hole carries out chamfered.
Wherein in an embodiment, the length of the chamfering of described first through hole is 1mm to 2mm, and angle is 30 degree to 45 degree.
Wherein in an embodiment, described copper sheathing structure also comprises the second copper sheathing and the second capping;
Described second copper sheathing comprises the second copper sheathing main body and the second copper sheathing afterbody, and the internal diameter of described second copper sheathing afterbody is greater than the internal diameter of described second copper sheathing main body;
One end of described second copper sheathing main body is stretched into the inside of described first copper sheathing afterbody and is welded and fixed;
Described second capping is sleeved on the inside of described second copper sheathing afterbody and is welded and fixed;
Described second copper sheathing main body and described second copper sheathing afterbody one-body molded.
Wherein in an embodiment, the internal diameter 1mm to 2mm larger than the external diameter of described second capping of described second copper sheathing afterbody;
The external diameter of described second copper sheathing main body equals the external diameter of described first copper sheathing main body; The external diameter of described second capping equals the external diameter of described second copper sheathing main body;
Described second capping is arranged on the intersection of described second copper sheathing main body and described second copper sheathing afterbody;
The length of described second copper sheathing afterbody is 7mm to 15mm.
Wherein in an embodiment, the length that described second copper sheathing main body stretches into described first copper sheathing afterbody is 5mm to 10mm.
Wherein in an embodiment, between described first capping and described first copper sheathing, adopt Welding to fix, between described second capping and described second copper sheathing, adopt Welding to fix.
Wherein in an embodiment, described second capping is provided with the second through hole passed through for heat exchange copper tube, the edge of described second through hole carries out chamfered;
The length of the chamfering of described second through hole is 1mm to 2mm, and angle is 30 degree to 45 degree.
Wherein in an embodiment, the inwall of the end of described first copper sheathing afterbody carries out chamfered, and the length of the chamfering of described first copper sheathing afterbody is 1.5mm to 2.5mm, and angle is 25 degree to 35 degree.
The present invention also provides a kind of bundled tube double-tube heat exchanger, comprises above copper sheathing structure described arbitrarily.
The invention has the beneficial effects as follows: optimal design has been carried out in the sealing of the present invention to copper sheathing and capping, first by the lengthening distance of each pad, avoid the impact that welding secondary is heated; Secondly capping is put in copper sheathing and coordinate welding, easily operate, enhance welding position intensity.
Accompanying drawing explanation
Fig. 1 is the overall schematic of copper sheathing structure of the prior art;
Fig. 2 is the overall schematic of an embodiment of copper sheathing structure of the present invention;
Fig. 3 is the cross-sectional schematic of the copper sheathing structure shown in Fig. 2;
Fig. 4 is the chamfering schematic diagram of the first copper sheathing afterbody in Fig. 2;
Fig. 5 is the chamfering schematic diagram of the first capping through hole in Fig. 2.
Detailed description of the invention
In order to make the object of copper sheathing structure of the present invention and bundled tube double-tube heat exchanger, technical scheme and advantage clearly understand, below in conjunction with concrete drawings and the specific embodiments, the present invention is further elaborated.
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment one
See Fig. 2 and Fig. 3, the invention provides a kind of copper sheathing structure, comprise the first copper sheathing 100 and the first capping 200, described first copper sheathing 100 comprises the first copper sheathing main body 110 and the first copper sheathing afterbody 120, and the internal diameter of described first copper sheathing afterbody 120 is greater than the internal diameter of described first copper sheathing main body 110; Described first capping 200 is sleeved on the inside of described first copper sheathing afterbody 120 and is welded and fixed; Described first copper sheathing main body 110 and described first copper sheathing afterbody 120 one-body molded.
In order to solve problem existing when the first copper sheathing 100 and the first capping 200 are welded, first the present invention improves the first copper sheathing 100, and the tail portion by the first copper sheathing 100 carries out enlarging process, in the present embodiment, the part of having carried out enlarging process is called the first copper sheathing afterbody 120, the other parts of the first copper sheathing are called the first copper sheathing main body 110, namely the first copper sheathing main body 110 in the present embodiment and the molding mode of the first copper sheathing afterbody 120 are for first to produce the first copper sheathing, then arc transition enlarging process is carried out to the afterbody of the first copper sheathing, after enlarging process, the internal diameter of the first copper sheathing afterbody 120 is greater than the internal diameter of the first copper sheathing main body 110, and the internal diameter of the first capping 200 and external diameter are all identical with external diameter with the internal diameter of the first copper sheathing main body 110 of non-enlarging, therefore the first capping 200 can be sleeved on the inside of the first copper sheathing afterbody 110, then by welding, the first capping 200 is fixed on the inwall of the first copper sheathing afterbody 120.The first copper sheathing 100 in the present embodiment and the first capping 200 are not docking welding, but the inwall that the first capping 200 is sleeved on the first copper sheathing 100 welds, so easy operation, and welding portion weld seam solder is saturated, welding quality is good, and welding portion is easy fracture not.
Preferably, as a kind of embodiment, the internal diameter 1mm to 2mm larger than the external diameter of the first capping 200 of the first copper sheathing afterbody 120, namely the first copper sheathing afterbody 120 is carried out to the arc transition process of 2mm to 4mm, like this when the first capping 200 is sleeved on the inside of the first copper sheathing afterbody 120, the gap of 1mm to 2mm is there is between first capping 200 and the first copper sheathing afterbody 120, follow-up like this when carrying out soldering, the solder that welding produces can incorporate completely in the gap of the first copper sheathing afterbody and the first capping and can not be deposited in surface, so not easily produce failure welding, the hermetic unit avoiding copper sheathing and capping is revealed.The preferred internal diameter of the first copper sheathing afterbody 120 1mm larger than the external diameter of the first capping 200 in the present embodiment.
Preferably, as a kind of embodiment, described first capping 200 is arranged on the intersection of described first copper sheathing main body 110 and described first copper sheathing afterbody 120.When preferably installing the first capping 200 in the present embodiment, the flanging of the first capping 200 is withstood on the enlarging circular arc place of the first copper sheathing 100, it is horn-like that the installation place of now the first copper sheathing 100 and the first capping 200 forms a capitate, arranges handled easily like this.
Preferably, as a kind of embodiment, the length of described first copper sheathing afterbody is 15mm to 30mm, preferred 20mm.Namely arc transition enlarging process is carried out to about 20mm place of one end of the first copper sheathing 100, which increase the welding distance between the first copper sheathing 100 and the first capping 200, welding can not produce very large secondary and be influenced by heat, and avoids pad to be heated leakage apart from too small generation secondary welding.
Embodiment two
In the tube bundle heat exchanger of Dan Fu road, the first copper sheathing 100 and the first capping 200 form the first system; And in the tube bundle heat exchanger of Shuan Fu road, also comprise the second system of the second copper sheathing 300 and the second capping 400 formation, wherein the second copper sheathing 300 is consistent with the fixed form of the first capping 100 and the first capping 200 with the fixed form of the second capping 400, and namely described copper sheathing structure also comprises the second copper sheathing 300 and the second capping 400; Described second copper sheathing 300 comprises the second copper sheathing main body 310 and the second copper sheathing afterbody 320, and the internal diameter of described second copper sheathing afterbody 320 is greater than the internal diameter of described second copper sheathing main body 310; Described second capping 400 is sleeved on the inside of described second copper sheathing afterbody 320 and is welded and fixed; Described second copper sheathing main body 310 and described second copper sheathing afterbody 320 one-body molded.Same, the internal diameter 1mm to 2mm larger than the external diameter of described second capping 400 of described second copper sheathing afterbody 320; The external diameter of described second copper sheathing main body 310 equals the external diameter of described first copper sheathing main body 110; The external diameter of described second capping 400 equals the external diameter of described second copper sheathing main body 310; Described second capping 400 is arranged on the intersection of described second copper sheathing main body 310 and described second copper sheathing afterbody 320; The length of described second copper sheathing afterbody 320 is 7mm to 15mm, and preferably the length of the second copper sheathing afterbody is 10mm.Same, when the second capping 400 in the present embodiment is sleeved in the second copper sheathing afterbody 320 can there is the gap of 1mm to 2mm in the inwall of the second capping and the second copper sheathing afterbody, and solder during welding can incorporate in this gap completely.Add man-hour, between described first capping 200 and described first copper sheathing 100, adopt Welding to fix, between described second capping 400 and described second copper sheathing 300, adopt Welding to fix.
Preferably, as a kind of embodiment, also improve in the present embodiment to the fixed form between the first system and second system, the one end by described second copper sheathing main body 310 is stretched into the inside of described first copper sheathing afterbody 120 and is welded and fixed.Because the length of the first copper sheathing afterbody 120 is longer, therefore can not contact with the first capping 200 when the second copper sheathing 200 stretches into the first copper sheathing 100 inside, and between the inwall and the outer wall of the second copper sheathing main body of the first copper sheathing afterbody, there is the gap of 1mm to 2mm, the solder produced during welding also can incorporate in this gap, avoid stacked solder equally on surface, and because the first copper sheathing and the second copper sheathing are not adopt docking welding, second copper sheathing inserts the first copper sheathing internal engagement welding, two copper sheathings coordinate extended length when welding, enhance shock resistance and the compressive strength thereof of welding position.Preferably, described second copper sheathing main body 320 stretches into the length of described first copper sheathing afterbody 110 is 5mm to 10mm.
In order to avoid welding the stacked solder produced further, see Fig. 4, the present invention is all provided with chamfering in the position of welding.The position of so-called welding refers in particular to the welding position of the first copper sheathing 100 and the second copper sheathing 300.Detailed description of the invention carries out chamfered to the inwall of the end of described first copper sheathing afterbody 120, the length of the chamfering of described first copper sheathing afterbody 120 is 1.5mm to 2.5mm (being preferably 2mm), angle is 25 degree to 35 degree (angle is preferably 30 degree), during welding, chamfering can play the effect of water conservancy diversion solder, the plumpness of fill solder weld seam and fusion penetration size when effectively increasing welding, the face of weld simultaneously stacked solder can being avoided further to coordinate at two copper sheathings, what effectively can increase solder incorporates the degree of depth.
Preferably, see Fig. 5, owing to the first capping 200 and the second capping 400 being provided with the through hole 201 passed through for heat exchange copper tube 500, the present embodiment also carries out chamfered to through hole, making length at through hole edge is 1mm to 2mm, and angle is the chamfering of 30 degree to 45 degree, and the chamfering preferred length of through hole is 1.5mm, angle is 30 degree, and the chamfering of through hole is centroclinal to through hole.During welding, chamfering can play the effect of water conservancy diversion solder, the plumpness of fill solder weld seam and fusion penetration size when effectively increasing welding.
The present invention also provides a kind of bundled tube double-tube heat exchanger, comprises the copper sheathing structure described in above any embodiment.Wherein Dan Fu road bundled tube double-tube heat exchanger comprises the copper sheathing structure of embodiment one, and Shuan Fu road bundled tube double-tube heat exchanger comprises the copper sheathing structure of embodiment two.
The present invention, by the lengthening distance of the pad of each parts, reduces welding secondary and is influenced by heat; Capping is put in copper sheathing and is coordinated welding, and it is horn-like that copper sheathing and capping cooperation place form a plektron, easy welded seal; To chamfering on the cooperation position of the first copper sheathing and the second copper sheathing, effectively increase the plumpness that solder fills weld seam; Second copper sheathing inserts in the first copper sheathing and coordinates welding, after two copper sheathing welding lengths of fit lengthen, can strengthen its anti-vibration and compressive strength.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claim.
Claims (13)
1. a copper sheathing structure, comprises the first copper sheathing and the first capping, it is characterized in that, described first copper sheathing comprises the first copper sheathing main body and the first copper sheathing afterbody, and the internal diameter of described first copper sheathing afterbody is greater than the internal diameter of described first copper sheathing main body;
Described first capping is sleeved on the inside of described first copper sheathing afterbody and is welded and fixed;
Described first copper sheathing main body and described first copper sheathing afterbody one-body molded.
2. copper sheathing structure according to claim 1, is characterized in that, the internal diameter 1mm to 2mm larger than the external diameter of described first capping of described first copper sheathing afterbody.
3. copper sheathing structure according to claim 2, is characterized in that, described first capping is arranged on the intersection of described first copper sheathing main body and described first copper sheathing afterbody.
4. copper sheathing structure according to claim 1, is characterized in that, the length of described first copper sheathing afterbody is 15mm to 30mm.
5. copper sheathing structure according to claim 1, is characterized in that, described first capping is provided with the first through hole passed through for heat exchange copper tube, the edge of described first through hole carries out chamfered.
6. copper sheathing structure according to claim 5, is characterized in that, the length of the chamfering of described first through hole is 1mm to 2mm, and angle is 30 degree to 45 degree.
7. the copper sheathing structure according to claim 1 to 6 any one, is characterized in that, described copper sheathing structure also comprises the second copper sheathing and the second capping;
Described second copper sheathing comprises the second copper sheathing main body and the second copper sheathing afterbody, and the internal diameter of described second copper sheathing afterbody is greater than the internal diameter of described second copper sheathing main body;
One end of described second copper sheathing main body is stretched into the inside of described first copper sheathing afterbody and is welded and fixed;
Described second capping is sleeved on the inside of described second copper sheathing afterbody and is welded and fixed;
Described second copper sheathing main body and described second copper sheathing afterbody one-body molded.
8. copper sheathing structure according to claim 7, is characterized in that, the internal diameter 1mm to 2mm larger than the external diameter of described second capping of described second copper sheathing afterbody;
The external diameter of described second copper sheathing main body equals the external diameter of described first copper sheathing main body; The external diameter of described second capping equals the external diameter of described second copper sheathing main body;
Described second capping is arranged on the intersection of described second copper sheathing main body and described second copper sheathing afterbody;
The length of described second copper sheathing afterbody is 7mm to 15mm.
9. copper sheathing structure according to claim 7, is characterized in that, the length that described second copper sheathing main body stretches into described first copper sheathing afterbody is 5mm to 10mm.
10. copper sheathing structure according to claim 7, is characterized in that, adopts Welding to fix between described first capping and described first copper sheathing, adopts Welding to fix between described second capping and described second copper sheathing.
11. copper sheathing structures according to claim 7, is characterized in that, described second capping is provided with the second through hole passed through for heat exchange copper tube, the edge of described second through hole carries out chamfered;
The length of the chamfering of described second through hole is 1mm to 2mm, and angle is 30 degree to 45 degree.
12. copper sheathing structures according to claim 7, is characterized in that, the inwall of the end of described first copper sheathing afterbody carries out chamfered, and the length of the chamfering of described first copper sheathing afterbody is 1.5mm to 2.5mm, and angle is 25 degree to 35 degree.
13. 1 kinds of bundled tube double-tube heat exchangers, is characterized in that, comprise the copper sheathing structure described in claim 1 to 12 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310722536.XA CN104729349B (en) | 2013-12-24 | 2013-12-24 | Copper sleeve structure and tube-bundle tube-in-tube heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310722536.XA CN104729349B (en) | 2013-12-24 | 2013-12-24 | Copper sleeve structure and tube-bundle tube-in-tube heat exchanger |
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| CN104729349A true CN104729349A (en) | 2015-06-24 |
| CN104729349B CN104729349B (en) | 2017-01-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1273356A (en) * | 1999-03-11 | 2000-11-15 | 株式会社日本触媒 | Shell-and-tube heat exchanger and method for controlling polymerization in shell-and-tube heat exchanger |
| CN2861894Y (en) * | 2005-11-30 | 2007-01-24 | 东莞市广大制冷有限公司 | Sleeve tubular heat exchanger for air conditioning system |
| KR20110071616A (en) * | 2009-12-21 | 2011-06-29 | 삼성전자주식회사 | Heat exchanger, welding members and air conditioner |
| CN202254966U (en) * | 2011-08-08 | 2012-05-30 | 安徽达诺新能源科技有限公司 | Sleeve pipe heat exchanger |
| CN202274782U (en) * | 2011-09-21 | 2012-06-13 | 青岛奥利凯中央空调有限公司 | Novel telescopic heat exchanger |
| CN203744812U (en) * | 2013-12-24 | 2014-07-30 | 珠海格力电器股份有限公司 | Copper sleeve structure and tube bundle type casing pipe heat exchanger |
-
2013
- 2013-12-24 CN CN201310722536.XA patent/CN104729349B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1273356A (en) * | 1999-03-11 | 2000-11-15 | 株式会社日本触媒 | Shell-and-tube heat exchanger and method for controlling polymerization in shell-and-tube heat exchanger |
| CN2861894Y (en) * | 2005-11-30 | 2007-01-24 | 东莞市广大制冷有限公司 | Sleeve tubular heat exchanger for air conditioning system |
| KR20110071616A (en) * | 2009-12-21 | 2011-06-29 | 삼성전자주식회사 | Heat exchanger, welding members and air conditioner |
| CN202254966U (en) * | 2011-08-08 | 2012-05-30 | 安徽达诺新能源科技有限公司 | Sleeve pipe heat exchanger |
| CN202274782U (en) * | 2011-09-21 | 2012-06-13 | 青岛奥利凯中央空调有限公司 | Novel telescopic heat exchanger |
| CN203744812U (en) * | 2013-12-24 | 2014-07-30 | 珠海格力电器股份有限公司 | Copper sleeve structure and tube bundle type casing pipe heat exchanger |
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| CN104729349B (en) | 2017-01-25 |
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