CN111043779B - Method for treating root of water pipe of inner container of enamel water tank - Google Patents
Method for treating root of water pipe of inner container of enamel water tank Download PDFInfo
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- CN111043779B CN111043779B CN201911403545.6A CN201911403545A CN111043779B CN 111043779 B CN111043779 B CN 111043779B CN 201911403545 A CN201911403545 A CN 201911403545A CN 111043779 B CN111043779 B CN 111043779B
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- water pipe
- chamfer
- end socket
- enamel
- inner container
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 210000003298 dental enamel Anatomy 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000003466 welding Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 abstract description 14
- 230000007547 defect Effects 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 2
- 238000004534 enameling Methods 0.000 description 9
- 229910000428 cobalt oxide Inorganic materials 0.000 description 5
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 5
- 229910000480 nickel oxide Inorganic materials 0.000 description 5
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010433 feldspar Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002320 enamel (paints) Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
-
- 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
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/02—Coating with enamels or vitreous layers by wet methods
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2207/00—Compositions specially applicable for the manufacture of vitreous enamels
- C03C2207/04—Compositions specially applicable for the manufacture of vitreous enamels for steel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention discloses a method for treating the root of a water pipe of an enamel water tank liner. After the inner container end socket and the water pipe are assembled and welded, a chamfering drill bit is adopted to chamfer and smooth the welding position of the water pipe and the end socket along the radial direction of the water pipe; the chamfer structure is gradually transited in size from one side of the water pipe far away from the axis of the end socket to one side of the water pipe close to the axis of the end socket; specifically for at the first side of water pipe, process out first chamfer in the one side that is more close to the head bottom promptly, process out the second chamfer in the second side of water pipe, the one side that is more far away from head center line promptly, the radial chamfer structure size of water pipe, along the second side of keeping away from the head axis from the water pipe, to the first side that the water pipe is close to the head axis, the size passes through gradually. The invention eliminates the gap generated by assembling two workpieces and realizes smooth transition of the surface of the joint of the workpieces. After the welding part of the water pipe and the end socket treated by the process is subjected to enamel treatment, an enamel layer is uniform and continuous, and enamel flaws and defects do not exist.
Description
Technical Field
The invention relates to the technical field of solar water tank enameling, in particular to a method for treating the root of a water pipe of an enamel water tank liner.
Background
With the progress of the current society, energy conservation and emission reduction become important contents of the development of the current society, and the energy conservation and emission reduction become important development directions for the reasonable and effective use of various clean energy sources such as solar energy, wind energy and the like. The vast majority of people in China have abundant solar energy resources, so that the solar water tank serving as a traditional simple solar energy utilization mode is used in a wide area in China for years. The solar water tank can convert solar energy into heat energy, so that water in the liner is heated from low temperature to high temperature, and the requirement of hot water in life and production of people is met.
The existing solar water tanks all comprise inner containers, and circulating media transfer heat to water in the inner containers through heat conduction. Due to the requirement of corrosion resistance, the current solar water tank liner mainly comprises a liner body and an upper end socket and a lower end socket, wherein the end socket is subjected to sand blasting and enameling burning after being welded with a water pipe, however, a certain gap is generated between the end socket and the water pipe due to assembly and welding problems, the end socket and the water pipe are directly subjected to sand blasting treatment and then enameling burning, the whole circle of scorching and oxidation phenomena can occur at the position, the expected protective function of an enamel layer on a steel plate is weakened, and the liner is easy to corrode and leak water after long-term use, and meanwhile, the problem of unbalanced stress is easily generated in the welding process, so that the service life of the liner is shortened.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for treating the root of a water pipe of an inner container of an enamel water tank.
The complete technical scheme of the invention comprises the following steps:
a method for treating the root of a water pipe of an enamel water tank liner is characterized by comprising a liner end socket and a water pipe, wherein after the liner end socket and the water pipe are assembled and welded, a chamfering drill bit is adopted to chamfer and smooth the welding position of the water pipe and the end socket along the radial direction of the water pipe; the chamfer structure is gradually transited in size from one side of the water pipe far away from the axis of the end socket to one side of the water pipe close to the axis of the end socket;
the concrete structure is as follows: a first chamfer is processed on the first side of the water pipe, namely the side closer to the bottom of the end socket, a second chamfer is processed on the second side of the water pipe, namely the side farther from the center contour of the end socket, the first chamfer is provided with a first connecting section away from the inner surface of the end socket, and the second chamfer is provided with a second connecting section away from the inner surface of the end socket; the first connecting section and the second connecting section are the same in height.
The height of the first chamfer from the first connecting section of the inner surface of the end socket is 1mm, the height of the second chamfer from the second connecting section of the inner surface of the end socket is 1mm, the distance between the first chamfer and the outer surface of the water pipe is 4.5mm, the included angle between the first chamfer and the horizontal direction is 60 degrees, the distance between the second chamfer and the outer surface of the water pipe is 1.2mm, and the included angle between the second chamfer and the horizontal direction is 40 degrees;
the radial chamfer structure size of water pipe is along keeping away from the second side of head axis from the water pipe, to the first side that the water pipe is close to the head axis, and the size passes through gradually.
Compared with the prior art, the invention has the obvious effects that: the root of the water pipe of the water tank liner is chamfered, and the height and the angle of the chamfer are designed by changing the chamfer size of the root of the water pipe of the water tank liner, so that the gap generated by assembling two workpieces is eliminated, and the smooth transition of the surface of the joint of the workpieces is realized. After the welding part of the water pipe and the end socket treated by the process is subjected to enamel treatment, an enamel layer is uniform and continuous, and enamel flaws and defects do not exist.
Drawings
FIG. 1 is a schematic view of the root treatment process of the water pipe of the enamel water tank liner of the invention.
FIG. 2 is a structural size diagram for treating the root of a water pipe of an enamel water tank liner.
FIG. 3 is a picture of the root of the water pipe of the liner of the enamel water tank.
FIG. 4 is a three-dimensional view of the root treatment of the water pipe of the liner of the enamel water tank.
In the figure: 1-end enclosure, 2-water pipe, 3-first chamfer, 4-second chamfer, 5-first connecting section and 6-second connecting section.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only illustrative and are not intended to limit the present application.
Firstly, the water pipe and the end enclosure are assembled, then welding is carried out, then, a chamfering drill bit is adopted, chamfering smooth processing is carried out on the welding position of the water pipe and the end enclosure along the radial direction of the water pipe 2, and the chamfering structure is a structure with gradually-transitional size from one side of the water pipe 2, which is far away from the axis of the end enclosure, to the other side of the water pipe 2, which is close to the axis of the end enclosure. For further detailed explanation, as shown in the three-dimensional diagram of the structure of the invention in fig. 4, the central axis of the seal head is set as x1The central axis of the water pipe is x2The plane formed by two parallel axes is a reference plane S1In which S is1And the two sides intersected with the pipe wall of the water pipe are set as a first side on one side closer to the central axis of the end socket and a second side on one side farther away from the central axis of the end socket. The concrete structure is shown in figure 1, and the structure comprises a seal head 1 and a water pipe 2. The first side of water pipe 2, process out first chamfer 3 in the one side that is more close to the head bottom promptly, process out second chamfer 4 in the second side of water pipe 2, the one side that is more far away from head central line promptly, first chamfer 3 has first linkage segment 5 apart from the head internal surface, second chamfer4, a second connecting section 6 is arranged at the inner surface of the end socket.
The dimensions of the first chamfer 3 and the second chamfer 4 are further explained below, as shown in fig. 2, the height of the first chamfer 3 from the first connecting section of the inner surface of the end socket is 1mm, the height of the second chamfer 4 from the second connecting section of the inner surface of the end socket is 1mm, the distance between the first chamfer and the outer surface of the water pipe is 4.5mm, the included angle with the horizontal direction is 60 degrees, the distance between the second chamfer and the outer surface of the water pipe is 1.2mm, and the included angle with the horizontal direction is 40 degrees.
In addition, the size of the radial chamfer structure of the water pipe 2 is gradually transited from the second side of the water pipe 2 far away from the axis of the seal head to the first side of the water pipe 2 close to the axis of the seal head. As shown in fig. 3, the real object diagram of the invention is shown after chamfering the welding position of the water pipe and the end socket.
Before the root of the water pipe of the water tank liner is treated by using the method, the welding joint part is found, the whole circle of burning and oxidation phenomena can be caused by directly performing sand blasting treatment and then performing enamel firing on the welding joint part, the expected protection function of an enamel layer on a steel plate is weakened, and the steel plate is easy to corrode and leak water after long-term use. In order to solve the problems, the inventor adopts chamfering treatment on the root of a water pipe of a liner of a water tank, the process that the radial chamfering angle and the height of the water pipe are kept consistent is adopted for facilitating processing at the beginning, and after the treatment, the uniformity of an enamel layer is improved to some extent, but the service life of the liner is not enough due to the fact that the wall thickness is greatly different due to the fact that the heights of connecting sections at two sides of the water pipe are different, and the stress at two sides and the thickness of the enamel layer are different in the using process. After the welding part of the water pipe and the end socket treated by the process is subjected to enamel treatment, an enamel layer is uniform and continuous, and enamel flaws and defects do not exist.
In addition, the invention also discloses a process and a method for enameling the liner after the root part of the water pipe of the liner of the enamel water tank is treated, wherein the process comprises the following steps:
(1) preparing glaze slip:
the raw material components adopted by the invention at least comprise: SiO 22: 52-58 parts by mass of feldspar powder: 48-50 parts by mass of boric anhydride: 18-25 parts by mass of alumina: 4-6 parts by mass, the sum of cobalt oxide and nickel oxide: 1.2-1.6 parts by mass of soda: 4-6 parts by mass of calcium carbonate: 1-3 parts by mass of kaolin: 2 to 3 parts by mass.
In the components of the invention, silicon oxide and feldspar powder are used as base materials, boric anhydride and alkalis are added as functional components for reducing the melting point of the base materials, and the thermal expansion coefficient of the soda ash is adjusted at the same time. As for the amount of cobalt oxide and nickel oxide, in the actual production, the addition of feldspar powder into cobalt oxide and nickel oxide can make the glaze more fusible, improve the viscosity, reduce the surface tension gradually and make the glaze more easily coated on the surface of a steel plate. After the product is detected, the addition of the cobalt oxide and the nickel oxide can form a partial microcrystalline phase after sintering, and the compressive strength is also obviously improved. Through multiple experiments on the dosage of the base component and each functional component, and comprehensive comparison of the influence on performance and cost consideration, the optimal dosage combination is finally selected, namely, the glaze component of the invention meets the following relationship, (silicon oxide + feldspar powder), (boric anhydride + soda), and (cobalt oxide + nickel oxide) ═ 100: (24 to 28) (1.4 to 1.6)
And uniformly mixing the prepared raw materials by using a ball-milling mixer, and adding deionized water to obtain the glaze slip used by the invention.
(2) Enameling process
After the root of the water pipe of the inner container of the enamel water tank is treated by adopting the method, the enamel is coated on an enamel coating machine, an initial position stroke limit switch is arranged at the initial position of the enamel coating machine, and a guniting position stroke limit switch is arranged at the guniting position; the initial position travel limit switch and the guniting position respectively collect swing bracket limit position signals, and the swinging of the swing bracket, the pause of any angle position, the rotation of the workpiece, and the pressing and loosening of the workpiece are controlled by a control system; the control system comprises a manual control mode and an automatic control mode;
the method comprises the following specific steps:
(1) in a manual control mode, the pressing cylinder is lifted, and the liner is installed in place; then the compressing cylinder descends to compress the inner container, and the inner container is at an initial position and the axis of the inner container is vertical;
(2) in an automatic control mode, the main cylinder drives the swing frame to turn forwards until the swing frame touches a guniting position travel limit switch, and at the moment, the included angle between the axis of the liner and the horizontal plane is 45-55 degrees;
(3) the auxiliary motor is started to drive the inner container to rotate at a constant speed of 10-15rpm, and before the enameling operation is finished, the inner container always rotates at a constant speed;
(4) after the rotation is timed for 30 seconds, the diaphragm pump is started, the glaze slurry is driven into the inner container, the pulping time is 10 seconds, and a compressed air source is started to pressurize the inner container;
(5) the main cylinder drives the swing frame to turn backwards, the turning time is 5 seconds, and the swing frame is stopped until the inner container keeps a horizontal position;
(6) stopping overturning, after the inner container continues to rotate and is timed for 20 seconds, driving the swing frame to overturn backwards again by the main cylinder, wherein the overturning time is 5 seconds, and the swing frame stops overturning, and at the moment, the included angle between the axis of the inner container and the horizontal plane is 25-35 degrees;
(7) stopping overturning, after the inner container continues to rotate and time for 20 seconds, driving the swing frame to continue to overturn backwards by the main cylinder, wherein the overturning time is 5 seconds, and the swing frame stops overturning, and at the moment, the included angle between the axis of the inner container and the horizontal plane is 60-75 degrees;
(8) stopping overturning, after the inner container continues to rotate and is timed for 20 seconds, driving the swing frame to overturn forwards by the main cylinder, wherein the overturning time is 5 seconds, and the swing frame stops overturning, and the included angle between the axis of the inner container and the horizontal plane is 10-15 degrees;
(9) stopping overturning, after the inner container continues to rotate and is timed for 20 seconds, driving the swing frame to overturn backwards by the main cylinder until the swing frame touches the stroke limit switch at the initial position, and at the moment, the inner container is at the initial position and the axis of the inner container is vertical;
(10) the auxiliary motor is turned off after the inner container continues to rotate for 10 seconds, and the inner container stops rotating;
(11) and under a manual control mode, the pressing air cylinder is lifted, the inner container is taken down from the enameling machine and hung on a drying conveying line.
According to the enameling method, except for the initial position and the guniting position, the limit position signal is required to be acquired, the external signal is not required to be acquired when other actions are finished, and the omnibearing enameling inside the workpiece is realized by setting the time length of each action. The control system controls the workpiece to swing and pause at a preset angle relative to the control system for acquiring external signals, and avoids system control abnormity caused by external signal faults. The coating process is controlled by time in a mode of combining manual control and automatic control, and 360-degree coating without dead angles can be achieved.
The above applications are only some embodiments of the present application. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (1)
1. A method for treating the root of a water pipe of an enamel water tank liner is characterized by comprising a liner end socket and a water pipe, wherein after the liner end socket and the water pipe are assembled and welded, a chamfering drill bit is adopted to chamfer and smooth the welding position of the water pipe and the end socket along the radial direction of the water pipe;
the central axis of the seal head is set as x1The central axis of the water pipe is x2The plane formed by two parallel axes is a reference plane S1In which S is1The two sides intersected with the pipe wall of the water pipe are respectively set as a first side at one side closer to the central axis of the end socket and a second side at one side farther from the central axis of the end socket;
the chamfer structure gradually transits from the second side to the first side in size;
the concrete structure is as follows: a first chamfer is processed on the first side of the water pipe, a second chamfer is processed on the second side of the water pipe, the first chamfer is provided with a first connecting section away from the inner surface of the end socket, the second chamfer is provided with a second connecting section away from the inner surface of the end socket,
the height of the first chamfer from the first connecting section of the inner surface of the end socket is 1mm, the height of the second chamfer from the second connecting section of the inner surface of the end socket is 1mm, the distance between the first chamfer and the outer surface of the water pipe is 4.5mm, the included angle between the first chamfer and the horizontal direction is 60 degrees, and the distance between the second chamfer and the outer surface of the water pipe is 1.2mm and the included angle between the second chamfer and the horizontal direction is 40 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911403545.6A CN111043779B (en) | 2019-12-30 | 2019-12-30 | Method for treating root of water pipe of inner container of enamel water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911403545.6A CN111043779B (en) | 2019-12-30 | 2019-12-30 | Method for treating root of water pipe of inner container of enamel water tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111043779A CN111043779A (en) | 2020-04-21 |
| CN111043779B true CN111043779B (en) | 2020-09-04 |
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| CN201911403545.6A Active CN111043779B (en) | 2019-12-30 | 2019-12-30 | Method for treating root of water pipe of inner container of enamel water tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187506A (en) * | 2007-06-15 | 2008-05-28 | 李文荣 | Vacuum tube solar energy enamel water tank and its manufacture method |
| CN202001743U (en) * | 2011-03-25 | 2011-10-05 | 江苏佳佳太阳能有限公司 | Heat exchanger tube connecting piece for water tank of split type solar water heater |
| KR20140011875A (en) * | 2012-07-20 | 2014-01-29 | 고수남 | Assembled type solar hot water storage tank |
| CN103791639A (en) * | 2013-06-17 | 2014-05-14 | 云南火鹰太阳能热水器有限公司 | Solar water heater tank liner seal head and mounting method |
| CN205066162U (en) * | 2015-10-20 | 2016-03-02 | 胡赫（青岛）换热水箱有限公司 | Integral type enamel holding water box and water heater |
| CN109201771A (en) * | 2018-08-20 | 2019-01-15 | 嘉兴永信精密钢管有限公司 | A kind of monotubular of damper, which is swaged, seals manufacturing process |
-
2019
- 2019-12-30 CN CN201911403545.6A patent/CN111043779B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187506A (en) * | 2007-06-15 | 2008-05-28 | 李文荣 | Vacuum tube solar energy enamel water tank and its manufacture method |
| CN202001743U (en) * | 2011-03-25 | 2011-10-05 | 江苏佳佳太阳能有限公司 | Heat exchanger tube connecting piece for water tank of split type solar water heater |
| KR20140011875A (en) * | 2012-07-20 | 2014-01-29 | 고수남 | Assembled type solar hot water storage tank |
| CN103791639A (en) * | 2013-06-17 | 2014-05-14 | 云南火鹰太阳能热水器有限公司 | Solar water heater tank liner seal head and mounting method |
| CN205066162U (en) * | 2015-10-20 | 2016-03-02 | 胡赫（青岛）换热水箱有限公司 | Integral type enamel holding water box and water heater |
| CN109201771A (en) * | 2018-08-20 | 2019-01-15 | 嘉兴永信精密钢管有限公司 | A kind of monotubular of damper, which is swaged, seals manufacturing process |
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| Publication number | Publication date |
|---|---|
| CN111043779A (en) | 2020-04-21 |
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Denomination of invention: A treatment method for the root of water pipe in enamel water tank Effective date of registration: 20220331 Granted publication date: 20200904 Pledgee: Heze rural commercial bank Limited by Share Ltd. Pledgor: Shandong Haohua enamel water tank Co.,Ltd. Registration number: Y2022980003619 |
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