CN108330490B - Method for connecting inner container of water storage type electric water heater and magnesium alloy sacrificial anode - Google Patents
Method for connecting inner container of water storage type electric water heater and magnesium alloy sacrificial anode Download PDFInfo
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- CN108330490B CN108330490B CN201810031924.6A CN201810031924A CN108330490B CN 108330490 B CN108330490 B CN 108330490B CN 201810031924 A CN201810031924 A CN 201810031924A CN 108330490 B CN108330490 B CN 108330490B
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- nut
- screw cap
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Details Of Fluid Heaters (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention belongs to the technical field of material processing, and particularly relates to a method for connecting an inner container of a water storage type electric water heater with a magnesium alloy sacrificial anode. The connection method adopts an inner-outer double-layer nut structure, a magnesium rod iron core (5) is welded on a center hole at the top of an inner nut (3) and is connected with the inner nut (3) through threads (4-3); the inner nut (3) is connected with the outer nut (2) through a thread (4-2), and the outer nut (2) is fixed on the inner container of the water heater through the thread (4-1); the inner screw cap (3) and the welding spot (1) are sealed in the inner cavity of the outer screw cap (2), so that the phenomena of water dripping and water leakage of the water heater caused by welding defects or welding seam corrosion are avoided, and the problem that the welding seam of the traditional magnesium anode rod connecting screw cap and the iron core is easy to seep water is effectively solved.
Description
Technical Field
The invention belongs to the technical field of material processing, and particularly relates to a method for connecting an inner container of a water storage type electric water heater with a magnesium alloy sacrificial anode.
Background
In a fresh water environment, the electrode potential of the magnesium alloy anode is relatively negative, and the magnesium alloy anode is widely applied to the protection of the inner container of a water storage type water heater (including an electric water heater). When the electric water heater is used day by day, if corrosion protection is not carried out, the inner container of the water heater can be corroded and perforated, water leakage and electric leakage accidents are caused, and personal safety of users is seriously threatened. Therefore, the anti-corrosion design of the inner container of the electric water heater is made, and the service life of the electric water heater can be effectively prolonged.
In order to play a role in fixing and conducting, an iron wire with the diameter of about 2-3 mm penetrates through the center of the magnesium alloy sacrificial anode rod. The traditional magnesium alloy sacrificial anode bar is fixed on the inner container of the water storage type water heater by adopting a steel nutAnd the conduction between the anode bar and the inner container of the water heater is realized through the screw cap, and electrons are transmitted to the steel inner container to be protected as a cathode. The center of the top of the steel nut is provided with a
The left small hole and the right small hole are used for welding the magnesium rod iron core on the steel cap, and when welding, gap gas between the screw cap and the magnesium rod is heated and rapidly expands and overflows to cause that the welding spot is internally sealed and loosened or the through small hole is formed, and along with the gradual corrosion and dissolution of the magnesium rod, the welding defects generate a water dripping phenomenon under the water pressure action of the inner container of the water heater, so that the electric leakage accident is easily caused.
Disclosure of Invention
The invention aims to provide a method for connecting an inner container of a water storage type electric water heater with a magnesium alloy sacrificial anode, which has the following specific technical scheme:
a connection method of an inner container and a magnesium alloy sacrificial anode of a water storage type electric water heater adopts an inner and outer double-layer nut structure, wherein a magnesium rod iron core 5 is welded on a central hole at the top of an inner nut 3 and is connected with the inner nut 3 through threads 4-3; the inner nut 3 is connected with the outer nut 2 through threads 4-2, and the outer nut 2 is fixed on the inner container of the water heater through the threads 4-1; the inner screw cap 3 and the welding spot 1 are sealed in the inner cavity of the outer screw cap 2, so that the problems of water dripping and water leakage of the water heater caused by welding defects or welding seam corrosion are solved.
When the diameter of the magnesium rod 6 is 25.98mm and the length is 350mm, the inner diameter of the inner nut 3 is
An outer diameter of
Is long as
The diameter of the central hole at the top of the inner nut 3 is
The inner screw cap is a cylindrical steel cap and is provided with an inner thread and an outer thread;
inner diameter of external nut 2
Outer diameter
Long and long
Nut inner height
The outer nut is a hexagonal nut and is provided with an inner thread and an outer thread.
The invention has the beneficial effects that: the connection method can effectively solve the problems of water dripping and water leakage of the water heater caused by welding defects or welding seam corrosion, thereby prolonging the service life of the electric water heater.
Drawings
FIG. 1 is a schematic view of the connection between the inner container of the water storage type electric water heater and the magnesium alloy sacrificial anode of the present invention;
description of reference numerals:
1-welding spots; 2-external screw cap; 3-inner screw cap; 4-1, 4-2 and 4-3-thread connection; 5-iron core; 6-magnesium rod.
Detailed Description
The invention provides a method for connecting an inner container of a water storage type electric water heater with a magnesium alloy sacrificial anode, which is further described by combining the embodiment.
Example 1
The diameter of the magnesium rod 6 is 25.98mm, and the length is 350 mm; the inner diameter of the inner nut 3 is 16.60mm, the outer diameter is 19.60mm, the length is 10.00mm, the inner nut is cylindrical and is provided with an inner thread and an outer thread, and the diameter of the center of the top of the inner nut is 2.00 mm; the outer nut 2 is a hexagonal nut with a length of 20.80mm, an outer diameter of 26.10mm, an inner diameter of 19.64mm and an inner height of 18.60 mm.
The outer thread of one end of the magnesium rod is turned, the diameter of the turned end of the magnesium rod is matched with the inner diameter of the inner nut 3, the turned end of the magnesium rod is connected with the inner nut 3 through the thread 4-3, and the iron core 5 of the magnesium rod is welded on a central hole in the top of the inner nut 3; the inner screw cap 3 is connected with the outer screw cap 2 through threads 4-2, the inner screw cap 3 is screwed into the outer screw cap 2, and the outer screw cap 2 is assembled on the inner container of the water storage type electric water heater through the threads 4-1.
Example 2
The diameter of the magnesium rod 6 is 25.98mm, and the length is 350 mm; the inner diameter of the inner nut 3 is 16.60mm, the outer diameter is 19.56mm, the length is 10.00mm, the inner nut is cylindrical and is provided with an inner thread and an outer thread, and the diameter of the center of the top of the inner nut is 2.00 mm; the outer nut 2 is a hexagonal nut with a length of 20.80mm, an outer diameter of 26.10mm, an inner diameter of 19.62mm and an inner height of 18.60 mm.
The outer thread of one end of the magnesium rod is turned, the diameter of the turned end of the magnesium rod is matched with the inner diameter of the inner nut 3, the turned end of the magnesium rod is connected with the inner nut 3 through the thread 4-3, and the iron core 5 of the magnesium rod is welded on a central hole in the top of the inner nut 3; the inner screw cap 3 is connected with the outer screw cap 2 through threads 4-2, the inner screw cap 3 is screwed into the outer screw cap 2, and the outer screw cap 2 is assembled on the inner container of the water storage type electric water heater through the threads 4-1.
Claims (1)
1. A method for connecting an inner container of a water storage type electric water heater with a magnesium alloy sacrificial anode is characterized in that the method adopts an inner-layer nut structure and an outer-layer nut structure, a magnesium rod iron core (5) is welded on a center hole at the top of an inner nut (3) and is connected with the inner nut (3) through threads (4-3); the inner nut (3) is connected with the outer nut (2) through a thread (4-2), and the outer nut (2) is fixed on the inner container of the water heater through the thread (4-1); the inner screw cap (3) and the welding spot (1) are sealed in the inner cavity of the outer screw cap (2);
the diameter of the magnesium rod (6) is 25.98mm, when the length of the magnesium rod is 350mm, the inner diameter of the inner screw cap (3) is 16.60mm, the outer diameter of the inner screw cap is 19.60mm, the length of the inner screw cap is 10.00mm, and the diameter of a central hole in the top of the inner screw cap (3) is 2.00 mm; the inner nut (3) is a cylindrical steel cap with an inner thread and an outer thread;
the inner diameter of the outer nut (2) is 19.60mm, the outer diameter is 26.10mm, the length is 20.80mm, the inner height of the nut is 18.60mm, and the outer nut (2) is a hexagonal nut and is provided with an inner thread and an outer thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031924.6A CN108330490B (en) | 2018-01-12 | 2018-01-12 | Method for connecting inner container of water storage type electric water heater and magnesium alloy sacrificial anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031924.6A CN108330490B (en) | 2018-01-12 | 2018-01-12 | Method for connecting inner container of water storage type electric water heater and magnesium alloy sacrificial anode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108330490A CN108330490A (en) | 2018-07-27 |
| CN108330490B true CN108330490B (en) | 2020-03-31 |
Family
ID=62924889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810031924.6A Active CN108330490B (en) | 2018-01-12 | 2018-01-12 | Method for connecting inner container of water storage type electric water heater and magnesium alloy sacrificial anode |
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| CN (1) | CN108330490B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476429Y (en) * | 2001-03-15 | 2002-02-13 | 陈昌工业股份有限公司 | Improved fixed bolt for truck wheel |
| CN2820879Y (en) * | 2005-09-25 | 2006-09-27 | 陈太星 | Long life magnesium anode |
| CN202989284U (en) * | 2012-11-29 | 2013-06-12 | 天津东义镁制品股份有限公司 | Sealed built-in resistance magnesium anode |
| CN103542535A (en) * | 2013-10-18 | 2014-01-29 | 天津东义镁制品股份有限公司 | Airtight seal thread structure of magnesium alloy sacrificial anode for water heater |
| CN206159737U (en) * | 2016-11-16 | 2017-05-10 | 新昌县泰斗机械有限公司 | Tee bend of convenient sample |
| CN206438180U (en) * | 2016-12-30 | 2017-08-25 | 北京有色金属研究总院 | A kind of storage water heater's inner bag electron anode |
| CN107394712A (en) * | 2017-09-15 | 2017-11-24 | 安徽红桥金属制造有限公司 | A kind of waterproof construction of connection box |
-
2018
- 2018-01-12 CN CN201810031924.6A patent/CN108330490B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476429Y (en) * | 2001-03-15 | 2002-02-13 | 陈昌工业股份有限公司 | Improved fixed bolt for truck wheel |
| CN2820879Y (en) * | 2005-09-25 | 2006-09-27 | 陈太星 | Long life magnesium anode |
| CN202989284U (en) * | 2012-11-29 | 2013-06-12 | 天津东义镁制品股份有限公司 | Sealed built-in resistance magnesium anode |
| CN103542535A (en) * | 2013-10-18 | 2014-01-29 | 天津东义镁制品股份有限公司 | Airtight seal thread structure of magnesium alloy sacrificial anode for water heater |
| CN206159737U (en) * | 2016-11-16 | 2017-05-10 | 新昌县泰斗机械有限公司 | Tee bend of convenient sample |
| CN206438180U (en) * | 2016-12-30 | 2017-08-25 | 北京有色金属研究总院 | A kind of storage water heater's inner bag electron anode |
| CN107394712A (en) * | 2017-09-15 | 2017-11-24 | 安徽红桥金属制造有限公司 | A kind of waterproof construction of connection box |
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| Publication number | Publication date |
|---|---|
| CN108330490A (en) | 2018-07-27 |
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