CN2139687Y - Heat-exchanger of gas water heater with black chrome plating - Google Patents
Heat-exchanger of gas water heater with black chrome plating Download PDFInfo
- Publication number
- CN2139687Y CN2139687Y CN 92241797 CN92241797U CN2139687Y CN 2139687 Y CN2139687 Y CN 2139687Y CN 92241797 CN92241797 CN 92241797 CN 92241797 U CN92241797 U CN 92241797U CN 2139687 Y CN2139687 Y CN 2139687Y
- Authority
- CN
- China
- Prior art keywords
- heat
- chrome plating
- black chrome
- water heater
- exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a heat exchanger of a gas water heater with a black chrome plating layer. A snake-shaped tube which penetrates through a row of paratactic fins back and forth is fixed in a soldering or brazing method. One end of the tube is provided with a water inlet, and the other end is provided with a water outlet. Both the tube and the fins are coated with black chrome plating layers.
Description
The utility model relates to a kind of heat exchanger of black chromium plating gas heater, belongs to the technical field of heat exchanger.
Heat exchanger of a great variety, different generally used the copper coiled pipe, adds aluminum heat build-up fin, and be unfavorable to absorbing heat because aluminium itself is white, so the thermal efficiency is relatively low, and expands the thermal etching poor performance, demands urgently improving.
The purpose of this utility model is the heat exchanger that a kind of black chromium plating gas heater will be provided, and it can remedy above-mentioned deficiency, improves the thermal efficiency, long service life, and antiacid alkali erosiveness is strong, good in oxidation resistance.
The purpose of this utility model is achieved in that coiled pipe passes row's fin to and fro, all is coated with black chromium coating at coiled pipe and fin surface, and an end of pipe is a water inlet, and the other end is a delivery port.Through after the black chromium plating, improve the thermal efficiency, both increased service life, heat conductivility significantly improves, thereby reaches energy-conservation, goes out the big purpose of hot water amount.Except black chromium plating, can also adopt oxidation the technology of black at fin surface, form a black heat-sink shell from the teeth outwards, also can reach above-mentioned purpose.
The schematic diagram of Fig. 1 black chromium plating heat exchanger
" A " portion enlarged drawing of Fig. 2 accompanying drawing 1
Now in conjunction with the accompanying drawings the heat converter structure of black chromium plating gas heater is described in detail:
By Fig. 1, coiled pipe (1) is made by materials such as aluminium, copper, steel, and fin (2) is arranged side by side, and Kong Bingyong soldering or soldering that coiled pipe (1) passes on the fin (2) are to and fro fixed, one end of coiled pipe (1) is water inlet (3), and the other end is delivery port (4).
Fig. 2 is accompanying drawing 1 " A " enlarged drawing
Coiled pipe (1) and fin (2) surface all are coated with one deck black chromium coating (3), and its thickness is about 1～3 micron.The process conditions of black chromium plating are as follows:
Chromic anhydride CrO
3180～220 grams per liters
Sodium nitrate NaNO
33.5～4.5 grams per liters
30～50 milliliters/liter of BL catalyst
Brium carbonate BaCO
33～6 grams per liters
Temperature≤40 ℃
Cathode-current density 20～30 peace/decimetres
2
Anode material lead or terne metal
5～7 minutes time
Compared with prior art, the heat exchanger of gas water heater with black chrome plating has following advantage:
1, improve the thermal efficiency, long service life, the oxidation resistance height improves antiacid alkali erosiveness energy.
2, heat transfer efficiency height, correspondingly energy-conservation.
3, simple in structure, be easy to make.
Claims (2)
1, a kind of heat exchanger of black chromium plating gas heater, it is characterized in that coiled pipe (1) passes row's fin (2) arranged side by side to and fro, one end of coiled pipe (1) is a water inlet, and the other end is a delivery port, is coated with one deck black chromium coating (3) at coiled pipe (1) and fin (2) surface.
2, heat exchanger according to claim 1 is characterized in that the thickness of black chromium plating layer is about 1～3 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241797 CN2139687Y (en) | 1992-11-24 | 1992-11-24 | Heat-exchanger of gas water heater with black chrome plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241797 CN2139687Y (en) | 1992-11-24 | 1992-11-24 | Heat-exchanger of gas water heater with black chrome plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2139687Y true CN2139687Y (en) | 1993-08-04 |
Family
ID=33781770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92241797 Expired - Fee Related CN2139687Y (en) | 1992-11-24 | 1992-11-24 | Heat-exchanger of gas water heater with black chrome plating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2139687Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526788C (en) * | 2007-10-12 | 2009-08-12 | 华南理工大学 | Plate-fin type water heat exchanger of gas burner water heater |
| CN104726914A (en) * | 2015-01-23 | 2015-06-24 | 中石化石油工程技术服务有限公司 | Method for treating surface of heat exchange coil of heat furnace |
| CN112414037A (en) * | 2020-11-26 | 2021-02-26 | 岳阳时瑞来饲料有限公司 | Drying equipment |
| CN116772227A (en) * | 2021-12-07 | 2023-09-19 | 北京丰润铭科贸有限责任公司 | Dedicated anti-freezing pipeline of coal fired boiler cooling system |
-
1992
- 1992-11-24 CN CN 92241797 patent/CN2139687Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526788C (en) * | 2007-10-12 | 2009-08-12 | 华南理工大学 | Plate-fin type water heat exchanger of gas burner water heater |
| CN104726914A (en) * | 2015-01-23 | 2015-06-24 | 中石化石油工程技术服务有限公司 | Method for treating surface of heat exchange coil of heat furnace |
| CN104726914B (en) * | 2015-01-23 | 2017-09-29 | 中石化石油工程技术服务有限公司 | A kind of surface treatment method of heating furnace heat exchange coil |
| CN112414037A (en) * | 2020-11-26 | 2021-02-26 | 岳阳时瑞来饲料有限公司 | Drying equipment |
| CN116772227A (en) * | 2021-12-07 | 2023-09-19 | 北京丰润铭科贸有限责任公司 | Dedicated anti-freezing pipeline of coal fired boiler cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |