CN112935739A - Manufacturing method of heat exchanger cover plate of water heater - Google Patents
Manufacturing method of heat exchanger cover plate of water heater Download PDFInfo
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- CN112935739A CN112935739A CN202110345079.1A CN202110345079A CN112935739A CN 112935739 A CN112935739 A CN 112935739A CN 202110345079 A CN202110345079 A CN 202110345079A CN 112935739 A CN112935739 A CN 112935739A
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- cover plate
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- heat exchanger
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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
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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Abstract
The invention discloses a method for manufacturing a heat exchanger cover plate of a water heater, which is characterized by comprising the following steps of: A. stamping a groove body on the main cover plate; B. laying a copper berth sheet on the auxiliary cover plate; C. covering the groove body notch of the main cover plate on the auxiliary cover plate downwards and clamping the copper berth sheet between the groove body notch and the auxiliary cover plate; D. welding the main cover plate and the auxiliary cover plate together to form a cover plate main body; E. heating the cover plate main body at a high temperature until the copper flakes are melted into a liquid state; F. the invention aims to overcome the defects of the prior art and provides a method for manufacturing a heat exchanger cover plate with a cavity.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of water heaters, in particular to a method for manufacturing a heat exchanger cover plate of a water heater.
[ background of the invention ]
The invention relates to a heat exchanger, in particular to a heat exchanger, which is characterized in that a pipeline for heating is arranged on a traditional heat exchanger in a penetrating way, and the pipeline is partially exposed outside, so that the structure is complex, and heat is easy to dissipate.
The present invention has been made in view of the above-mentioned disadvantages.
[ summary of the invention ]
The invention aims to overcome the defects of the prior art and provide the method for manufacturing the heat exchanger cover plate with the cavity, the method is convenient and efficient to process, and the processed cover plate main body is compact and reliable in structure.
The invention is realized by the following technical scheme:
a method for manufacturing a heat exchanger cover plate of a water heater is characterized by comprising the following steps: A. stamping a groove body on the main cover plate; B. laying a copper berth sheet on the auxiliary cover plate; C. covering the groove body notch of the main cover plate on the auxiliary cover plate downwards and clamping the copper berth sheet between the groove body notch and the auxiliary cover plate; D. welding the main cover plate and the auxiliary cover plate together to form a cover plate main body; E. heating the cover plate main body at a high temperature until the copper flakes are melted into a liquid state; F. and cooling to form a compact cavity between the main cover plate and the auxiliary cover plate.
The method for manufacturing a heat exchanger cover plate as described above is characterized in that the step B further comprises the following steps: b1, processing an upward flanging at the edge of the auxiliary cover plate; b2, laying a copper gasket on the auxiliary cover plate and between the flanges. The step C also comprises the following steps: c1, covering the groove body notch of the main cover plate on the auxiliary cover plate downwards, and placing the main cover plate between the flanges; and C2, stamping the flanging to rivet the main cover plate and the auxiliary cover plate.
The method for manufacturing a heat exchanger cover plate as described above is characterized in that: in step D, the main cover plate and the sub cover plate are subjected to multi-spot butt welding.
The method for manufacturing a heat exchanger cover plate as described above is characterized in that: at least two pipe installation holes are processed on the auxiliary cover plate at positions corresponding to the tank body in step A, and the auxiliary cover plate of the cover plate main body is placed and heated downwards towards the upper main cover plate in step E.
The method for manufacturing a heat exchanger cover plate as described above is characterized in that: the pipeline mounting hole is a flanging hole, and the flanging faces to the outer side of the cover plate main body.
The method for manufacturing a heat exchanger cover plate as described above is characterized in that: in step E, the cover plate body is placed in a brazing furnace and heated at a high temperature.
The method for manufacturing a heat exchanger cover plate as described above is characterized in that: the main cover plate and the auxiliary cover plate are made of stainless steel.
The method for manufacturing a heat exchanger cover plate as described above is characterized in that: in step E, the cover plate body is heated to between 1100 ℃ and 1300 ℃.
Compared with the prior art, the invention has the following advantages:
according to the manufacturing method, the cavity for containing water flow is manufactured in the cover plate main body, the pipeline in the heat exchanger is connected with the cavity, so that the water flow can pass through the cavity, the heat on the cover plate main body is absorbed, the energy utilization rate is improved, the manufacturing method is convenient and efficient to process, and the processed cover plate main body is compact and reliable in structure.
[ description of the drawings ]
FIG. 1 is an assembled schematic view of a heat exchanger cover plate of the present invention;
FIG. 2 is a perspective view of the present conventional heat exchanger;
fig. 3 is a perspective view of the heat exchanger of the present invention.
[ detailed description ] embodiments
The invention is further described below with reference to the accompanying drawings:
the orientations of the present specification, such as "upper", "lower", "left", "right", "front", "back", etc., are based on the orientation of the drawings, and are for the purpose of describing the relationship between the respective components, and do not indicate a unique or absolute positional relationship between the respective components, but merely indicate one embodiment of the present invention, and do not limit the embodiments thereof.
As shown in fig. 2, the conventional heat exchanger has a U-shaped tube on the housing, which is complicated in structure and easy to dissipate heat, and as shown in fig. 3, the inventor of the present invention has invented a heat exchanger structure, in which a hollow cavity is formed on the cover plate 4 of the heat exchanger, and the hollow cavity is connected to an internal pipe, so that a water flow flows through the hollow cavity, the structure is more compact and reliable, and the heat conversion efficiency is improved, and therefore, the present invention is directed to a method for forming a hollow accommodating cavity on the cover plate 4 of the heat exchanger.
As shown in fig. 1, a method for manufacturing a heat exchanger cover plate of a water heater is characterized by comprising the following steps:
A. stamping one or more grooves 11 in the main cover plate 1;
B. processing an upward flanging 21 at the edge of the auxiliary cover plate 2;
C. a copper berth sheet 3 is laid on the auxiliary cover plate 2 and between the flanges 21
D. Covering the groove body 11 of the main cover plate 1 on the auxiliary cover plate 2 with the notch facing downwards and clamping the copper berth sheet 3 between the auxiliary cover plate and the auxiliary cover plate, and placing the main cover plate 1 between the turned-over edges 21;
E. stamping the flanging 21 to rivet the main cover plate 1 and the auxiliary cover plate 2;
F. welding the main cover plate 1 and the auxiliary cover plate 2 together to form a cover plate main body 4, wherein the main cover plate 1 and the auxiliary cover plate 2 can be welded together through spot welding, and the edges of the main cover plate 1 and the auxiliary cover plate 2 can also be welded through common welding;
G. heating the cover plate main body 4 at a high temperature until the copper poisson 3 is melted into a liquid state, wherein the liquid copper flows and fills a gap between the main cover plate 1 and the auxiliary cover plate 2, and the main cover plate 1 and the auxiliary cover plate 2 are made of metal materials with higher melting points than the copper poisson 3, such as stainless steel, titanium alloy and the like;
H. and (3) cooling, wherein a gap between the main cover plate 1 and the auxiliary cover plate 2 is filled after cooling, and the groove wall of the groove body 11 and the upper surface of the auxiliary cover plate 2 form a compact cavity.
In addition, the flanging 21 is not required to be arranged in the step B, the main cover plate 1 and the auxiliary cover plate 2 are not required to be riveted in the step E, the main cover plate and the auxiliary cover plate are clamped by a clamp and then welded together, the flanging 21 is firstly riveted together, and the positioning, reinforcing and other effects can be achieved, so that the structural reliability is improved, and the processing efficiency is improved.
Through the manufacturing method, the cavity for containing water flow is manufactured in the cover plate main body 4, and the pipeline in the heat exchanger is connected with the cavity, so that the water flow can pass through the cavity, the heat on the cover plate main body 4 is absorbed, the energy utilization rate is improved, the manufacturing method is convenient and efficient to process, and the processed cover plate main body is compact and reliable in structure.
As a preferable scheme, in the step D, the main cover plate 1 and the auxiliary cover plate 2 are subjected to multi-point butt welding, the main cover plate 1, the auxiliary cover plate 2 and the copper backing 3 are spot-welded together by using an energy storage butt welding machine, the multi-point butt welding can enable the main cover plate 1 and the auxiliary cover plate 2 to be less in deformation and small in surface oxidation, parts do not need to be positioned, subsequent polishing or other surface treatment is not needed, and the optimization of the processing procedure is facilitated.
Preferably, in the step a, at least two pipeline installation holes 22 are processed at the position, corresponding to the tank body 11, on the auxiliary cover plate 2, and in the step E, the auxiliary cover plate 2 of the cover plate main body 4 is placed and heated towards the upper main cover plate 1, so that the molten liquid copper cannot flow out from the pipeline installation holes 22, and thus, a water inlet and a water outlet of the cavity can be processed for connecting other pipelines, and thus, the processing is convenient, and the production efficiency is high. Of course, the pipe installation hole 22 may be formed by drilling or the like after all the above steps are completed.
Preferably, the pipe installation hole 22 is a flanged hole, which can be machined in the same way as the through hole, and the flanged edge faces the outer side of the cover plate main body 4, so that when being connected to other pipes, the flanged edge can play a role in fixing the pipes and providing a welding space.
Preferably, in step E, the cover plate body 4 is placed in a brazing furnace and heated at a high temperature, so that the processing efficiency is high and the processing cost is low, but it is needless to say that other heating equipment may be used and the copper shim 3 may be heated to be molten.
The main cover plate 1 and the auxiliary cover plate 2 are made of stainless steel, the price of the materials is low, the production is facilitated, the tap water generally contains electrolyte solution, the electrolyte solution and the copper pipe form a primary battery, the pitting phenomenon in typical electrochemical corrosion occurs, brittle verdigris is formed, the gradual corrosion causes the perforation of an oxygen-free copper water pipe, the oxygen-free copper heat exchanger in certain severe areas is corroded and penetrated in a medium-short period during use, the water leakage phenomenon is caused, and the risk of metal corrosion is greatly reduced by adopting the stainless steel.
Preferably, in step E, the cover plate body 4 is heated to between 1100 ℃ and 1300 ℃ so that the copper poisson's 3 can be sufficiently melted without affecting the main cover plate 1 and the auxiliary cover plate 2.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. A method for manufacturing a heat exchanger cover plate of a water heater is characterized by comprising the following steps:
A. punching a groove body (11) on the main cover plate (1);
B. a copper berth sheet (3) is laid on the auxiliary cover plate (2);
C. the notch of the groove body (11) of the main cover plate (1) is downwards covered on the auxiliary cover plate (2) and the copper bottom sheet (3) is clamped between the groove body and the auxiliary cover plate;
D. welding the main cover plate (1) and the auxiliary cover plate (2) together to form a cover plate main body (4);
E. heating the cover plate main body (4) at a high temperature until the copper bottom sheet (3) is melted into a liquid state;
F. and cooling to form a compact cavity between the main cover plate (1) and the auxiliary cover plate (2).
2. The method for manufacturing a heat exchanger cover plate according to claim 1, further comprising the following steps in step B:
b1, processing an upward flanging (21) at the edge of the auxiliary cover plate (2);
b2, paving a copper berth sheet (3) on the auxiliary cover plate (2) and between the flanges (21); the step C also comprises the following steps:
c1, covering the notch of the groove body (11) of the main cover plate (1) downwards on the auxiliary cover plate (2), and placing the main cover plate (1) between the flanges (21);
and C2, stamping the flanging (21) to rivet the main cover plate (1) and the auxiliary cover plate (2).
3. The method of manufacturing a heat exchanger cover plate according to claim 1, wherein: in step D, the main cover plate (1) and the auxiliary cover plate (2) are subjected to multi-point butt welding treatment.
4. The method of manufacturing a heat exchanger cover plate according to claim 1, wherein: in step A, at least two pipeline mounting holes (22) are processed on the auxiliary cover plate (2) at positions corresponding to the groove body (11), and in step E, the auxiliary cover plate (2) of the cover plate main body (4) is placed and heated downwards towards the upper main cover plate (1).
5. The method of manufacturing a heat exchanger cover plate according to claim 4, wherein: the pipeline mounting hole (22) is a flanging hole, and the flanging faces the outer side of the cover plate main body (4).
6. The method of manufacturing a heat exchanger cover plate according to claim 1, wherein: in step E, the cover plate body (4) is placed in a brazing furnace and heated at a high temperature.
7. The method of manufacturing a heat exchanger cover plate according to claim 1, wherein: the main cover plate (1) and the auxiliary cover plate (2) are both made of stainless steel.
8. The method of manufacturing a heat exchanger cover plate according to claim 7, wherein: in step E, the cover plate body (4) is heated to between 1100 ℃ and 1300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345079.1A CN112935739A (en) | 2021-03-31 | 2021-03-31 | Manufacturing method of heat exchanger cover plate of water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345079.1A CN112935739A (en) | 2021-03-31 | 2021-03-31 | Manufacturing method of heat exchanger cover plate of water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112935739A true CN112935739A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110345079.1A Pending CN112935739A (en) | 2021-03-31 | 2021-03-31 | Manufacturing method of heat exchanger cover plate of water heater |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305086A (en) * | 1999-10-22 | 2001-07-25 | 株式会社荏原制作所 | Plate type heat exchanger |
| EP1376041A2 (en) * | 2002-06-21 | 2004-01-02 | Behr GmbH & Co. | Process for manufacturing a stacked heat exchanger and stacked heat exchanger |
| EP2138793A2 (en) * | 2008-06-26 | 2009-12-30 | Behr GmbH & Co. KG | Stacked plates heat exchanger for a motor vehicle |
| US20180056362A1 (en) * | 2015-04-07 | 2018-03-01 | Alfa Laval Corporate Ab | Method of producing a plate heat exchanger |
| CN109269107A (en) * | 2018-11-09 | 2019-01-25 | 崇州杨明电子产品有限公司 | Heat exchanger and its production technology |
| WO2020226260A1 (en) * | 2019-05-09 | 2020-11-12 | 두성산업(주) | Plate-shaped heat exchanger assembly and method for manufacturing plate-shaped heat exchanger |
| CN112513553A (en) * | 2018-07-24 | 2021-03-16 | 齐尔美特股份公司 | Plate heat exchanger with reinforced cover and method for producing the reinforced cover and assembly thereof |
-
2021
- 2021-03-31 CN CN202110345079.1A patent/CN112935739A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305086A (en) * | 1999-10-22 | 2001-07-25 | 株式会社荏原制作所 | Plate type heat exchanger |
| EP1376041A2 (en) * | 2002-06-21 | 2004-01-02 | Behr GmbH & Co. | Process for manufacturing a stacked heat exchanger and stacked heat exchanger |
| EP2138793A2 (en) * | 2008-06-26 | 2009-12-30 | Behr GmbH & Co. KG | Stacked plates heat exchanger for a motor vehicle |
| US20180056362A1 (en) * | 2015-04-07 | 2018-03-01 | Alfa Laval Corporate Ab | Method of producing a plate heat exchanger |
| CN112513553A (en) * | 2018-07-24 | 2021-03-16 | 齐尔美特股份公司 | Plate heat exchanger with reinforced cover and method for producing the reinforced cover and assembly thereof |
| CN109269107A (en) * | 2018-11-09 | 2019-01-25 | 崇州杨明电子产品有限公司 | Heat exchanger and its production technology |
| WO2020226260A1 (en) * | 2019-05-09 | 2020-11-12 | 두성산업(주) | Plate-shaped heat exchanger assembly and method for manufacturing plate-shaped heat exchanger |
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Application publication date: 20210611 |
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