CN112813435A - Sacrificial anode structure for high-insulation water heater - Google Patents
Sacrificial anode structure for high-insulation water heater Download PDFInfo
- Publication number
- CN112813435A CN112813435A CN202110015929.1A CN202110015929A CN112813435A CN 112813435 A CN112813435 A CN 112813435A CN 202110015929 A CN202110015929 A CN 202110015929A CN 112813435 A CN112813435 A CN 112813435A
- Authority
- CN
- China
- Prior art keywords
- insulating
- sacrificial anode
- gasket
- insulating gasket
- water heater
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/10—Electrodes characterised by the structure
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a sacrificial anode structure for a high-insulation water heater, belonging to the technical field of parts of water heaters. The sacrificial anode structure consists of a sacrificial anode rod, an insulating gasket and a screw head, wherein the insulating gasket is designed into a structure with step type bulges and can be tightly matched with the insulating gasket to form a completely closed insulating isolation layer between the sacrificial anode rod and the screw head. Compared with the existing insulating sealing structure, the invention eliminates the air gap of the horizontal contact surface between the sacrificial anode rod and the screw head in the existing structure, greatly improves the insulating reliability, and ensures the stability of the insulating property to a great extent.
Description
Technical Field
The invention belongs to the technical field of parts of water heaters, and particularly relates to a sacrificial anode structure for a high-insulation water heater.
Background
One or more sacrificial anode rods are generally required to be installed in the existing water storage type water heater to protect a water storage inner container in a long-term service process and prevent corrosion and water leakage. The sacrificial anode needs to be connected with the liner and ensure good electrical conduction. The galvanic cell is formed in the environment of domestic water due to the potential difference between the two, and the protection of the inner container is realized through the self-sacrifice of the anode bar. Therefore, the anode rod is a consumable product, has a certain service life and needs to be replaced regularly. In order to detect the consumption condition of the anode bar in real time and remind a user of replacement in time, a novel intelligent sacrificial anode-signal anode appears in the market. Unlike conventional sacrificial anodes, the sacrificial anode needs to be insulated and connected with the inner container first and then connected with the inner container through a lead. The existing insulation connection structure is generally composed of a sacrificial anode rod 1, an insulation sealing gasket 2, a screw head 3 and a sealing gasket 4 (shown in figure 1). Under the specific use condition, the screw head 3 is connected with the inner container, and the sacrificial anode rod 1 is communicated with the inner container through a lead. However, in such a structure, when the insulating mat 4 is pressed against the screw head 3, a part of the air gap 8 is easily formed between the insulating mat 4 and the insulating mat seal 2. The air gap is short and the left and right ends are not separated by an insulator. By using the finite element electric field analysis, it is found that the air gap can cause the insulation of the device to be reduced under the finite element electric field analysis. Electric field analysis shows that after an air gap is generated under 1000v voltage, the field intensity of the edge surfaces of the insulating sealing gasket 2 and the insulating gasket 4 reaches 0.7kV/mm, and if the field intensity of the air edge surfaces exceeds 0.4 kV/mm, under the conditions of humidity, dirt and the like, an edge surface discharge channel can be generated, so that the resistance is reduced, and the insulativity is reduced. Under high voltage, especially under the condition that air humidity is big, dirty, can follow the surface formation intermittent type nature discharge channel of insulating sealed pad 2, insulating pad 4, can lead to insulating resistance to reduce and form the electric leakage channel, lead to insulating properties to descend, cause the quality unstability in the production process, also can cause simultaneously to have the electric leakage in the use, bring the real-time detection data error of signal positive pole. Therefore, the problem of unstable insulation performance of the magnesium rod insulation protection device of the water heater is urgently solved.
Disclosure of Invention
The invention aims to provide a sacrificial anode structure for a high-insulation water heater, which consists of a sacrificial anode rod 1, an insulation sealing gasket 2, a screw head 3, an insulation gasket 4, a fastening nut 5 and a sacrificial anode rod thread 6, wherein the insulation sealing gasket 2, the screw head 3 and the insulation gasket 4 are sequentially sleeved on the sacrificial anode rod 1 through respective inner holes thereof, and all components are tightly pressed on the sacrificial anode rod 1 through the sacrificial anode rod thread 6 by the fastening nut 5 to form an integral structure; meanwhile, the lower end of the insulating gasket 4 is inserted into the stepped bulge 7 of the insulating gasket 2, so that the totally-enclosed isolated insulation between the sacrificial anode rod 1 and the screw head 3 is realized.
The lower end of the insulating gasket 4 is inserted into the stepped bulge 7 of the insulating gasket 2 and is in tight fit, and the outer diameter of the lower end of the insulating gasket is 0.2mm to 0.3mm larger than the inner diameter of the stepped bulge 7 of the insulating gasket 2.
The stepped bulge 7 of the insulating sealing gasket 2 is inserted into the lower end of the insulating gasket 4 and is in close fit with the lower end of the insulating gasket; the inner diameter of the lower end of the insulating gasket is 0.2mm to 0.3mm smaller than the outer diameter of the stepped bulge 7 of the insulating gasket 2.
The insulating gasket or the insulating sealing gasket is designed into an insulating sealing sleeve structure.
The insulating pad is made of nylon, polypropylene, polytetrafluoroethylene or epoxy resin in a rigid insulating material; the insulating sealing gasket is made of ethylene propylene diene monomer or silicon rubber in high-quality insulating rubber.
The sacrificial anode rod is made of magnesium alloy or aluminum alloy.
The invention has the beneficial effects that:
1. the insulating sealing gasket is designed into a step type, is provided with the raised additional ring, and forms circumferential surface interference overlapping with the insulating gasket when being butted with the insulating gasket. Because this structure does not have the place that insulating cover parcel can not arrive, has guaranteed insulating stability to a great extent.
2. The design process adopts an interference design, so that the contact surface between the lower end of the insulating gasket and the insulating gasket forms interference contact, pressure in the horizontal direction is generated, tight fit is formed between the lower end of the insulating gasket and the insulating gasket, and the air gap phenomenon in the vertical direction, which can be caused by too large gaps, is avoided. The problem of the insulating properties that arouses because machining precision, installation compactness descend by a wide margin is avoided.
3. The interference compresses tightly the design and protruding formula is isolated can effectively avoid external environment like humidity, quality of water, air etc. to insulating nature's of insulating apparatus influence.
Drawings
FIG. 1 is a schematic diagram of an original sacrificial anode with high insulation.
Fig. 2 is a schematic view of a magnesium rod sealing structure.
Fig. 3 is a schematic view of a magnesium rod sealing structure II.
Fig. 4 is a schematic view of the shape of the insulating mat or the insulating gasket designed as an insulating sealing sleeve.
Detailed Description
The invention provides a sacrificial anode structure for a high-insulation water heater, which is further described with reference to the attached drawings.
Fig. 2 and 3 are schematic diagrams showing the structure of the high-insulation sacrificial anode.
As shown in fig. 2, the sacrificial anode structure is composed of a sacrificial anode rod 1, an insulating sealing gasket 2, a screw head 3, an insulating gasket 4, a fastening nut 5 and a sacrificial anode rod thread 6, the insulating sealing gasket 2, the screw head 3 and the insulating gasket 4 are sequentially sleeved on the sacrificial anode rod 1 through respective inner holes thereof, and the fastening nut 5 tightly presses each component on the sacrificial anode rod 1 through the sacrificial anode rod thread 6 to form an integral structure; wherein the insulating sealing gasket 2 is designed into a structure with a step type bulge 7; in the installation state, the fastening nut 5 presses the insulating pad 4 on the screw head 3, and presses the screw head 3 on the upper surface of the insulating sealing pad 2 through force transmission to realize sealing; meanwhile, the lower end of the insulating gasket 4 is inserted into the stepped boss 7 of the insulating gasket 2 and is in close fit with the stepped boss. The outer diameter of the lower end of the insulating gasket 4 is 0.2mm to 0.3mm larger than the inner diameter of the stepped bulge 7 of the insulating gasket 2; and the totally-enclosed isolated insulation between the sacrificial anode rod 1 and the screw head 3 is realized.
As shown in fig. 3, the stepped protrusion 7 of the insulating gasket 2 is inserted into the lower end of the insulating gasket 4 in a tight fit, and the inner diameter of the lower end of the insulating gasket 4 is 0.2mm to 0.3mm smaller than the outer diameter of the stepped protrusion 7 of the insulating gasket 2.
FIG. 4 is a schematic view showing the shape of the sealing insulating pad; the insulating pad 4 is made of a rigid insulating material, and comprises nylon, polypropylene, polytetrafluoroethylene or epoxy resin; the insulating sealing gasket 2 is made of high-quality insulating rubber and is made of ethylene propylene diene monomer or silicon rubber.
The sacrificial anode rod is made of magnesium alloy or aluminum alloy.
Claims (6)
1. A sacrificial anode structure for a high-insulation water heater is composed of a sacrificial anode rod (1), an insulating sealing gasket (2), a screw head (3), an insulating gasket (4), a fastening nut (5) and a sacrificial anode rod thread (6), wherein the insulating sealing gasket (2), the screw head (3) and the insulating gasket (4) are sleeved on the sacrificial anode rod (1) sequentially through respective inner holes of the insulating sealing gasket, the fastening nut (5) tightly presses each part on the sacrificial anode rod (1) through the sacrificial anode rod thread (6) to form an integral structure; the sealing structure is characterized in that the insulating sealing gasket (2) is designed into a structure with a step type bulge (7), in the installation state, the insulating gasket (4) is tightly pressed on the screw head (3) by the fastening nut (5), and the screw head (3) is tightly pressed on the upper surface of the insulating sealing gasket (2) through force transmission to realize sealing; meanwhile, the lower end of the insulating gasket (4) is inserted into the stepped bulge (7) of the insulating gasket (2), so that the fully-closed isolated insulation between the sacrificial anode rod (1) and the screw head (3) is realized.
2. The sacrificial anode structure for the high-insulation water heater is characterized in that the lower end of the insulating gasket (4) is inserted into the stepped bulge (7) of the insulating gasket (2) and is in interference fit; the outer diameter of the lower end of the insulating gasket is 0.2mm to 0.3mm larger than the inner diameter of the stepped bulge (7) of the insulating gasket (2).
3. The sacrificial anode structure for the high-insulation water heater as claimed in claim 1, wherein the stepped protrusion (7) of the insulating gasket (2) is inserted into the lower end of the insulating gasket (4) in an interference fit; the inner diameter of the lower end of the insulating gasket is 0.2mm to 0.3mm smaller than the outer diameter of the step-type protrusion (7) of the insulating gasket (2).
4. The sacrificial anode structure for a high insulation water heater as claimed in claim 1, wherein the insulating pad or the insulating gasket is designed as an insulating sealing sleeve structure.
5. The sacrificial anode structure for the high-insulation water heater is characterized in that the insulating pad (4) is made of nylon, polypropylene, polytetrafluoroethylene or epoxy resin in a rigid insulating material; the insulating sealing gasket (2) adopts ethylene propylene diene monomer or silicon rubber in high-quality insulating rubber.
6. The sacrificial anode structure for the high-insulation water heater as claimed in claim 1, wherein the sacrificial anode rod is made of magnesium alloy or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110015929.1A CN112813435B (en) | 2021-01-07 | 2021-01-07 | Sacrificial anode structure for high-insulation water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110015929.1A CN112813435B (en) | 2021-01-07 | 2021-01-07 | Sacrificial anode structure for high-insulation water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112813435A true CN112813435A (en) | 2021-05-18 |
| CN112813435B CN112813435B (en) | 2022-09-30 |
Family
ID=75858031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110015929.1A Active CN112813435B (en) | 2021-01-07 | 2021-01-07 | Sacrificial anode structure for high-insulation water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112813435B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981452A (en) * | 2021-10-28 | 2022-01-28 | 国网河南省电力公司电力科学研究院 | Anticorrosion method for metal down lead of graphite-based grounding network based on combined protection of sacrificial anode and silicon rubber coating |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1126692A (en) * | 1977-10-03 | 1982-06-29 | Rheem International, Inc. | Non-sacrificial anode and water heater construction |
| US20090188787A1 (en) * | 2008-01-29 | 2009-07-30 | Dr. Bernard Closset Consulting | Sacrificial anode with resistor assembly for metal tank corrosion protection |
| CN204342884U (en) * | 2014-12-16 | 2015-05-20 | 艾欧史密斯(中国)热水器有限公司 | Electron anode and water storage device and water-heater |
| CN205279450U (en) * | 2015-11-10 | 2016-06-01 | 江苏迈能高科技有限公司 | Electron anodal water container for water heater is equipped with |
| CN205329162U (en) * | 2016-02-03 | 2016-06-22 | 西安海镁特镁业有限公司 | Sacrificial anode structure with recess is sealed |
| CN205329161U (en) * | 2016-02-03 | 2016-06-22 | 西安海镁特镁业有限公司 | Sacrificial anode structure |
| CN205529046U (en) * | 2016-02-03 | 2016-08-31 | 西安海镁特镁业有限公司 | Sacrificial anode structure with conical sealing surface |
| CN208594335U (en) * | 2018-07-10 | 2019-03-12 | 广东万家乐燃气具有限公司 | A kind of magnesium bar insulation system |
| JP2020012189A (en) * | 2018-07-20 | 2020-01-23 | 日本防蝕工業株式会社 | Sacrificial anode structure, apparatus for determining consumed state of sacrificial anode, and determination method |
| CN214736101U (en) * | 2021-01-07 | 2021-11-16 | 北京市第一0一中学 | Sacrificial anode structure for high-insulation water heater |
-
2021
- 2021-01-07 CN CN202110015929.1A patent/CN112813435B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1126692A (en) * | 1977-10-03 | 1982-06-29 | Rheem International, Inc. | Non-sacrificial anode and water heater construction |
| US20090188787A1 (en) * | 2008-01-29 | 2009-07-30 | Dr. Bernard Closset Consulting | Sacrificial anode with resistor assembly for metal tank corrosion protection |
| CN204342884U (en) * | 2014-12-16 | 2015-05-20 | 艾欧史密斯(中国)热水器有限公司 | Electron anode and water storage device and water-heater |
| CN205279450U (en) * | 2015-11-10 | 2016-06-01 | 江苏迈能高科技有限公司 | Electron anodal water container for water heater is equipped with |
| CN205329162U (en) * | 2016-02-03 | 2016-06-22 | 西安海镁特镁业有限公司 | Sacrificial anode structure with recess is sealed |
| CN205329161U (en) * | 2016-02-03 | 2016-06-22 | 西安海镁特镁业有限公司 | Sacrificial anode structure |
| CN205529046U (en) * | 2016-02-03 | 2016-08-31 | 西安海镁特镁业有限公司 | Sacrificial anode structure with conical sealing surface |
| CN208594335U (en) * | 2018-07-10 | 2019-03-12 | 广东万家乐燃气具有限公司 | A kind of magnesium bar insulation system |
| JP2020012189A (en) * | 2018-07-20 | 2020-01-23 | 日本防蝕工業株式会社 | Sacrificial anode structure, apparatus for determining consumed state of sacrificial anode, and determination method |
| CN214736101U (en) * | 2021-01-07 | 2021-11-16 | 北京市第一0一中学 | Sacrificial anode structure for high-insulation water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981452A (en) * | 2021-10-28 | 2022-01-28 | 国网河南省电力公司电力科学研究院 | Anticorrosion method for metal down lead of graphite-based grounding network based on combined protection of sacrificial anode and silicon rubber coating |
| CN113981452B (en) * | 2021-10-28 | 2023-05-30 | 国网河南省电力公司电力科学研究院 | Corrosion prevention method for graphite-based grounding grid metal down lead based on combined protection of sacrificial anode and silicone rubber coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112813435B (en) | 2022-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112813435B (en) | Sacrificial anode structure for high-insulation water heater | |
| WO2008016568A3 (en) | Nail-type current collector with non-conductive core and surface metallization for electrochemical cell | |
| CN214736101U (en) | Sacrificial anode structure for high-insulation water heater | |
| CN102376506B (en) | Full-insulated fuse for buried combined transformer | |
| CN111244342A (en) | Sealed power battery apron | |
| CN219731075U (en) | Electrodeless frame high performance hydrogen production electrolysis trough | |
| CN217589189U (en) | Power battery top cap | |
| CN116024588A (en) | Electrodeless frame high performance hydrogen production electrolysis trough | |
| CN212894043U (en) | Electrode binding post sealing structure for sewage treatment electrolysis device | |
| CN204931314U (en) | A kind of insulating pot | |
| CN204022937U (en) | A kind of water cooled electrode of MOCVD reaction chamber | |
| CN208488497U (en) | A kind of conductivity electrode | |
| CN218096637U (en) | Anti-leakage injection molding electronic anode for water heater and water heater using same | |
| CN215673571U (en) | Anti-deformation rubber sealing element | |
| CN216838193U (en) | Sacrificial anode insulation connecting device realized through injection molding | |
| CN216924783U (en) | Resistance gasket for mounting magnesium rod of water heater | |
| CN217239238U (en) | Secondary insulation sleeve seals conducting rod | |
| CN201570331U (en) | Cone step seal electrical appliance insulated porcelain sleeve fixedly mounted in oil tank | |
| CN215010756U (en) | Novel double-hole magnesium oxide rod | |
| CN210397705U (en) | Novel threading sealing device of fast-assembling connection formula | |
| CN208690164U (en) | A kind of environment resistant 2000A pole | |
| CN220772266U (en) | Flowmeter electrode sealing system | |
| CN211170916U (en) | Electrode assembly of portable electrolysis device | |
| CN216671485U (en) | Insulating pull rod and circuit breaker | |
| CN214534458U (en) | Sealing structure of furnace cover of deposition furnace and deposition furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230613 Address after: 100091 building 4, yard 29, Dongbeiwang South Road, Haidian District, Beijing Patentee after: Beijing No.101 Middle School Patentee after: Beijing Huadian new energy Electrical Materials Research Institute Co.,Ltd. Patentee after: MAGONTEC XI'AN Co.,Ltd. Patentee after: Xi'an Pirelli Intelligent Technology Co.,Ltd. Address before: 100091 building 4, yard 29, Dongbeiwang South Road, Haidian District, Beijing Patentee before: Beijing No.101 Middle School Patentee before: Beijing Huadian new energy Electrical Materials Research Institute Co.,Ltd. Patentee before: MAGONTEC XI'AN Co.,Ltd. |