CN110068001B - Electrode heating rod device for electrode boiler - Google Patents
Electrode heating rod device for electrode boiler Download PDFInfo
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- CN110068001B CN110068001B CN201910384640.XA CN201910384640A CN110068001B CN 110068001 B CN110068001 B CN 110068001B CN 201910384640 A CN201910384640 A CN 201910384640A CN 110068001 B CN110068001 B CN 110068001B
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- electrode
- electrode tip
- sleeve
- protective sleeve
- boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/30—Electrode boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Prevention Of Electric Corrosion (AREA)
- Resistance Heating (AREA)
Abstract
The application discloses electrode boiler heating electrode rod device, including conducting rod and insulating cover, the conducting rod sets up in insulating cover, still includes the electrode tip, just the electrode tip is solid electrode tip, and the electrode tip is directly or indirectly fixed together with the conducting rod. The invention has the following beneficial effects: the electrode tip adopts a solid electrode tip, no space exists in the electrode tip, no residual substance is accumulated in the electrode tip, and stable operation parameters of the electric boiler during working are ensured; and meanwhile, the outer wall surface of the electrode tip is provided with the groove, so that the contact area of the electrode tip and water is increased, the resistance between the electrode tip and the water is increased, the surface current of the electrode tip is reduced, and the safety coefficient of the electrode tip is increased.
Description
Technical Field
The invention relates to the field of electrode boilers, in particular to an electrode rod heating device of an electrode boiler.
Background
The consumption of the existing electric boiler is getting bigger and bigger, the electrode is a very critical part in the electric boiler, patent CN 2016342402 provides a novel immersed heating electrode, a round hole (serial number 4 in the reference numeral) is arranged at the bottom of the arc of the body (serial number 1 in the reference numeral) of the electrode, but water in the boiler can enter the body from the round hole, and as long as the electric boiler is in the working process state, the body of the electrode is always in the state of being immersed by the water, so the water inside the body is the 'dead water', when the boiler is used up to discharge water for a certain time, the inside and the outside of the body are both adhered with the water, the dissolved substances in the water can be separated out on the inner wall and the outer wall of the body, when people wash the body, only the separated substances on the outer wall of the body can be washed out, and the substances separated out on the inner wall of the body can not be washed out.
The water used by the electric boiler in the using process is not pure water but water dissolved with certain electrolyte, the electrolyte used by the electric boiler in each time is not fixed and is determined according to specific using requirements, for example, the electrolyte A is used at this time, and the electrolyte B is probably used next time, so that the problem exists.
Disclosure of Invention
The invention provides an electrode rod heating device for an electrode boiler aiming at the problems.
The technical scheme adopted by the invention is as follows:
the utility model provides an electrode boiler heating electrode stick device, includes conducting rod and insulating cover, the conducting rod sets up in the insulating cover, still includes the electrode tip, just the electrode tip is solid electrode tip, and the electrode tip is directly or indirectly fixed together with the conducting rod.
The electrode tip adopts the solid core electrode tip in this device, and there is not the space inside the electrode tip, and residual material can not piled up inside the electrode tip, has guaranteed that electric boiler operating parameter is stable.
Meanwhile, because the electrode tip is a solid core, no 'dead water' is formed in the electrode tip, and because the 'dead water' corrodes the electrode tip greatly, the solid electrode tip is not easy to corrode, and the service life is longer.
Optionally, the electrode tip is a square electrode tip or a cylindrical electrode tip or a bullet-shaped electrode tip, and a groove is arranged on the outer wall of the electrode tip.
Because when the voltage is a fixed value, the larger the contact between the electrode tip and the water is, the smaller the current per unit area on the electrode tip is, and the smaller the current per unit area is, the higher the safety factor when the electrode boiler is operated is; the grooves are formed in the outer wall surface of the electrode tip, so that the contact area of the electrode tip and water is increased, the unit area current on the electrode tip can be reduced, and the safety factor of the electrode boiler during operation is improved.
Optionally, the electrode tip is bullet shape electrode tip, the recess has a plurality ofly, a plurality of recesses all distribute on the outer wall of electrode tip, and the recess is from electrode tip circumferencial direction longitudinal distribution.
The electrode head of the device can be provided with a plurality of grooves, and when the electrode head is provided with four grooves, and the distances among the four grooves are equal, the cross section of the electrode head is in a cross shape; when the electrode head is provided with eight grooves, the section of the electrode head is plum blossom-shaped. In the scheme, an electrode head with four grooves is preferably arranged.
Optionally, the insulating sleeve is a ceramic insulating sleeve.
The insulating sleeve has the function of insulating and protecting the conductive rod and completely isolating the conductive rod from water.
Optionally, the electrode assembly further comprises a rigid protective sleeve and a flexible protective sleeve, the rigid protective sleeve and the flexible protective sleeve are fixed together to form a closed protective cavity, the conductive rod and the insulating sleeve are located in the protective cavity, and the electrode tip is located outside the protective cavity.
The flexible protective sleeve and the rigid protective sleeve are opposite, the flexible protective sleeve is soft and foldable, the rigid protective sleeve is hard and not foldable, the flexible protective sleeve in the device is made of ceramic materials, and the rigid protective sleeve is made of steel materials. Because the rigid protective sleeve and the flexible protective sleeve are fixed together to form the closed protective cavity, water in the boiler cannot seep into the protective cavity, so that the conducting rod in the protective cavity is protected against water, and the conducting rod is protected against water doubly due to the fact that the insulating sleeve is arranged on the conducting rod, so that the safety coefficient is higher during use.
Optionally, the electrode assembly further comprises a conductive block, two ends of the conductive block are detachably matched with the electrode tip and the conductive rod respectively, and part of the conductive block is located in the protective sleeve.
Optionally, the number of the flexible protective sleeves is two, and the two flexible protective sleeves are respectively arranged at two openings of the rigid protective sleeve.
The flexible protective sleeve is made of ceramic materials, the rigid protective sleeve is made of steel materials, and the ceramic protective sleeves are respectively arranged on two sides of the steel protective sleeve. In contrast to CN2016100342402, which uses a ceramic insulating sheath (reference number 6 in this patent document), the ceramic is very brittle and easily breaks when an external force is applied (especially, the middle part of the ceramic insulating sheath). Therefore, the ceramic protective sleeves are respectively arranged on two sides of the steel protective sleeve, and the steel is high in strength and not easy to break when stressed, so that the device is higher in rigidity compared with an immersed electrode in CN 2016100342402.
Optionally, a compression spring is sleeved on the conductive rod and used for directly or indirectly ejecting the rigid protective sleeve and the flexible protective sleeve to the electrode tip; and the compression spring is used for keeping the protection cavity closed.
Optionally, the rigid protective sleeve is a steel protective sleeve, and the flexible protective sleeve is a ceramic protective sleeve.
Optionally, an inner insulating spacer bush is arranged between the insulating bush and the conducting rod.
The inner insulating spacer is made of an insulating and elastic material, and for example, the inner insulating spacer can be made of rubber, silica gel or plastic.
The invention has the beneficial effects that:
1. the electrode tip adopts a solid electrode tip, no space exists in the electrode tip, no residual substance is accumulated in the electrode tip, and stable operation parameters of the electric boiler during working are ensured;
2. meanwhile, the outer wall surface of the electrode tip is provided with the longitudinal groove, so that the contact area of the electrode tip and water is increased, the surface current on the electrode tip is reduced, and the safety coefficient of the electrode boiler during operation is increased;
3. adopt in this device to set up a ceramic protective sheath respectively at a steel protective sheath both ends to make ceramic protective sheath and steel protective sheath combined action form inclosed protection chamber, played the dual insulation effect to the conducting rod, can prevent simultaneously when using that water from oozing into the protection intracavity, played good waterproof and water proof effect, and make this device for having higher rigidity.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of a heating electrode bar device of an electrode boiler;
FIG. 2 is an enlarged schematic diagram at A in FIG. 1;
FIG. 3 is an enlarged schematic diagram at B of FIG. 1;
FIG. 4 is an enlarged schematic diagram at C of FIG. 1;
FIG. 5 is an enlarged schematic block diagram at D of FIG. 1;
FIG. 6 is an enlarged schematic diagram at E in FIG. 1;
FIG. 7 is an enlarged schematic block diagram at F of FIG. 1;
FIG. 8 is a schematic view of the structure of example 1 of the electrode head;
fig. 9 is a schematic view of the structure of example 2 of the electrode head.
The figures are numbered: 1. lifting lug, 2, gland nut, 3, conducting rod, 4, connect electric copper bar, 5, bearing, 6, backing plate, 7, pressure spring, 8, end cover, 9, bolt, 10, lining insulating spacer bush, 11, flexible protective sheath, 12, insulating cover, 1301, flange board, 1302, connecting plate, 14, rigidity protective sheath, 15, supplementary fixed cover, 16, conducting block, 17, screw rod, 18, electrode tip, 1801, recess.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
As shown in the attached figure 1, the electrode heating device for the electrode boiler comprises a conductive rod 3, an insulating sleeve 12 and an electrode head 18, wherein the conductive rod 3 is arranged in the insulating sleeve 12, the electrode head 18 is a solid electrode head 18, and the electrode head 18 is directly or indirectly fixed with the conductive rod 3.
Electrode tip 18 adopts solid core electrode tip 18 in this device, and there is not the space in the inside of electrode tip 18, and residual material can not piled up in the inside of electrode tip 18, has guaranteed that electric boiler operating parameter is stable.
Meanwhile, in the device, because the electrode head 18 is solid, no 'dead water' is formed in the electrode head 18, and because the 'dead water' corrodes the electrode head 18 greatly, the solid electrode head 18 is not easy to corrode, and the service life is longer.
As shown in fig. 1, fig. 3, fig. 6 and fig. 7, the end cap 8 and the conductive block 16 work together to clamp and fix the two flexible protective sleeves 11 and the rigid protective sleeve 14 firmly due to the presence of the compression spring 7. The design can ensure that the rigid protective sleeve 14 and the flexible protective sleeve 11 are firmly clamped together to form a closed protective cavity, and the compression spring 7 is elastic, so that the closed protective cavity can be ensured to be always in a closed state.
As shown in attached drawings 1, 2 and 3, the lifting lug 1 is installed at the end, where the electrode tip 1 is not installed, of the conductive rod 3, the compression nut 4 is screwed on the conductive rod 3, the backing plate 6, the bearing 5 and the power connection copper bar 4 are sleeved between the compression spring 7 and the compression nut 4 at one time, and the compression nut 4 and the compression spring 7 work to clamp the power connection copper bar 4, the bearing 5 and the backing plate 6 together. The power can be supplied to the electrode head 18 after the power-on copper bar 4 is connected with a power supply.
As shown in fig. 1, 8 and 9, a groove 1801 is formed on the outer wall of the electrode head 18.
Because when the voltage is a constant value, the greater the contact between the electrode head 18 and the water, the smaller the current per unit area on the electrode head 18, and the smaller the current per unit area, the higher the safety factor when the electrode boiler is operated; in the present case, the outer wall surface of the electrode head 18 is provided with the groove 1801, so that the contact area of the electrode head 18 and water is increased, the current per unit area on the electrode head 18 can be reduced, and the safety factor of the electrode boiler during operation is improved.
As shown in fig. 8 and fig. 9, the electrode head 18 is a bullet-shaped electrode head 18, there are a plurality of grooves 1801, and the plurality of grooves 1801 are all distributed on the outer wall of the electrode head 18, and the grooves 1801 are longitudinally distributed from the circumferential direction of the electrode head.
In the present device, there may be a plurality of grooves 1801 on the electrode head 18, and when there are four grooves 1801 on the electrode head 18 and the distances between the four grooves 1801 are equal, the cross section of the electrode head 18 is cross-shaped, and the three-dimensional structure of the electrode head is as shown in fig. 8.
When there are eight grooves 1801 on the electrode head 18, the cross section of the electrode head 18 is quincunx, and the cross section of the electrode head 18 is as shown in fig. 9.
In the present case, an electrode head 18 with four grooves 1801 is preferred, that is, the electrode head 18 shown in fig. 8.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the insulating sleeve 12 is a ceramic insulating sleeve 12.
The insulating sleeve 12 is used for insulating and protecting the conductive rod 3 and completely isolating the conductive rod from water.
As shown in fig. 3, 4, 5 and 6, the electrode assembly further includes a rigid protective sleeve 14 and a flexible protective sleeve 11, the rigid protective sleeve 14 and the flexible protective sleeve 11 are fixed together to form a closed protection cavity, the conductive rod 3 and the insulating sleeve 12 are located in the protection cavity, and the electrode head 18 is located outside the protection cavity.
Here, the flexible protection sleeve 11 is opposite to the rigid protection sleeve 14, which means that the flexible protection sleeve 11 is soft and foldable, but the rigid protection sleeve 14 is hard and non-foldable, because the flexible protection sleeve 11 is made of ceramic material and the rigid protection sleeve 14 is made of steel material in this embodiment. Because the rigid protective sleeve 14 and the flexible protective sleeve 11 are fixed together to form a closed protective cavity, water in the boiler cannot seep into the protective cavity, so that the conducting rod 3 in the protective cavity is protected against water, and the conducting rod 3 is protected against water doubly due to the fact that the insulating sleeve 12 is arranged on the conducting rod 3, so that the safety coefficient is higher during use.
As shown in fig. 3 and fig. 6, an inner insulating spacer 10 is disposed between the conductive rod 3 and the insulating sleeve 12, and the inner insulating spacer 10 is used to ensure that the relative position between the conductive rod 3 and the insulating sleeve 12 is stable.
As shown in fig. 3, a portion of the end cap 8 is inserted into a gap between the insulating sheath 12 and the flexible protective sheath 11, so that the insulating sheath 12 and the flexible protective sheath 11 are prevented from shifting and shaking.
As shown in fig. 4 and fig. 5, two ends of the rigid protection sleeve 14 are fixed to the flexible protection sleeves 11 through the flange plate 1301 and the connecting plate 1302 respectively, because the rigid protection sleeve 14 is made of steel, and the flexible protection sleeve 11 is made of ceramic, the flange plate 1301 and the connecting plate 1302 both use steel plates, the specific flange plate 1301 and the connecting plate 1302 are fixed to two ends of the rigid protection sleeve 14 through welding, the flange plate 1301 and the connecting plate 1302 both have annular grooves, and the two flexible protection sleeves 11 are respectively embedded in the annular grooves of the flange plate 1301 and the connecting plate 1302. The flange plate 1301 is provided with bolts 9, and when the apparatus is mounted on the furnace body of an electrode boiler, the bolts 9 fix the flange plate 1301 and the furnace body together.
As shown in fig. 1 and fig. 6, the device further includes a conductive block 16, two ends of the conductive block 16 are detachably matched with the electrode head 18 and the conductive rod 3, respectively, and a part of the conductive block 16 is located in the protective sleeve.
As shown in fig. 6, an auxiliary fixing sleeve 15 is disposed between the insulating sleeve 12 and the conductive block 16, and the auxiliary fixing sleeve 15 is used for fixing the conductive rod 13 to prevent the conductive rod 3 and the insulating sleeve 12 from shifting. The auxiliary fixing sleeve 15 in the device can be directly fixed on the conductive block 16 or not fixed on the conductive block 16.
As shown in fig. 1, there are two flexible protection sleeves 11, and the two flexible protection sleeves 11 are respectively disposed at two cylindrical openings of the rigid protection sleeve 14.
The flexible protective sleeve 11 is made of ceramic, the rigid protective sleeve 14 is made of steel, and two ceramic protective sleeves are respectively arranged on two sides of the steel protective sleeve. In contrast to CN2016100342402, which uses a ceramic insulating sheath (reference number 6 in this patent document), the ceramic is very brittle and easily breaks when an external force is applied (especially, the middle part of the ceramic insulating sheath). Therefore, the ceramic protective sleeves are respectively arranged on two sides of the steel protective sleeve, and the steel is high in strength and not easy to break when stressed, so that the device is higher in rigidity compared with an immersed electrode in CN 2016100342402.
As shown in fig. 1 and fig. 2, a pressing spring 7 is sleeved on the conductive rod 3, and the pressing spring 7 is used for directly or indirectly bouncing the rigid protective sleeve 14 and the flexible protective sleeve 11 towards the electrode head 18; and the hold-down spring 7 is used to keep the protection chamber closed. In other equivalent embodiments, other types of elastic devices, such as torsion springs or tension springs, may be used.
As shown in fig. 1, the rigid protective sheath 14 is a steel protective sheath, and the flexible protective sheath 11 is a ceramic protective sheath.
As shown in fig. 3 and 6, an inner insulating spacer 10 is disposed between the insulating sleeve 12 and the conductive rod 3.
Specifically, the inner insulating spacer 10 is made of an insulating and elastic material, for example, the inner insulating spacer 10 may be made of rubber, silica gel or plastic.
Reference is made to fig. 8 and 9, which show the electrode tip 8 as two preferred types of electrode tips for the device.
Referring to fig. 1, the beneficial effects of the conductive rod 3 in the present embodiment are further stated, the conductive rod 3 in the present embodiment is made of conductive metal, so that the conductive rod 3 can be conductive on one hand, and the conductive block 16, the gland nut 2 and the gland spring 7 are mounted on the conductive rod 3 on the other hand, and the conductive block 16, the gland nut 2 and the gland spring 7 are used for elastically tightening the flexible protective sleeve 11 and the rigid protective sleeve 14 together to form a closed protective cavity, so that the conductive rod 3 also plays a role of a "pull rod" to tighten the conductive block 16, the flexible protective sleeve 11, the rigid protective sleeve 14 and the end cover 8 together.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (7)
1. The electrode heating device for the electrode boiler comprises a conductive rod and an insulating sleeve, wherein the conductive rod is arranged in the insulating sleeve; the electrode head is characterized by further comprising a rigid protective sleeve and a flexible protective sleeve, wherein the rigid protective sleeve and the flexible protective sleeve are fixed together to form a closed protective cavity, the conductive rod and the insulating sleeve are located in the protective cavity, and the electrode head is located outside the protective cavity; the two flexible protective sleeves are respectively arranged at two cylinder openings of the rigid protective sleeve; the rigid protective sleeve is a steel protective sleeve, and the flexible protective sleeve is a ceramic protective sleeve.
2. The electrode rod device for heating electrode boiler of claim 1, wherein the electrode head is a square electrode head or a cylindrical electrode head or a bullet-shaped electrode head, and the outer wall of the electrode head is provided with a groove.
3. The electrode rod apparatus for heating of electrode boiler as set forth in claim 2, wherein said electrode head is a bullet-shaped electrode head, said grooves are plural, said plural grooves are all distributed on the outer wall of the electrode head, and the grooves are distributed longitudinally from the circumferential direction of the electrode head.
4. The electrode-boiler heating electrode rod assembly of claim 1, wherein said insulating sleeve is a ceramic insulating sleeve.
5. The electrode rod device for heating electrode boiler of claim 1, further comprising a conductive block, both ends of said conductive block are detachably fitted with the electrode head and the conductive rod, respectively, and a part of the conductive block is located in the protective cover.
6. The electrode boiler heating electrode bar device of claim 1, wherein a compression spring is sleeved on the conductive bar and used for directly or indirectly springing the rigid protective sleeve and the flexible protective sleeve to the electrode head; and the compression spring is used for keeping the protection cavity closed.
7. The electrode-boiler-heating electrode rod assembly according to claim 1, wherein an inner insulating spacer is disposed between the insulating sleeve and the conductive rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910384640.XA CN110068001B (en) | 2019-05-09 | 2019-05-09 | Electrode heating rod device for electrode boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910384640.XA CN110068001B (en) | 2019-05-09 | 2019-05-09 | Electrode heating rod device for electrode boiler |
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| Publication Number | Publication Date |
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| CN110068001A CN110068001A (en) | 2019-07-30 |
| CN110068001B true CN110068001B (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910384640.XA Active CN110068001B (en) | 2019-05-09 | 2019-05-09 | Electrode heating rod device for electrode boiler |
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| CN (1) | CN110068001B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2732683A1 (en) * | 1977-07-20 | 1979-02-01 | Normbau Gmbh | Steam generator with immersion electrode for three=phase supply - has screw control rod to adjust current from outside by varying electrode to liq. contact area |
| JP2002013812A (en) * | 2000-06-26 | 2002-01-18 | Toto Ltd | Warm water apparatus |
| CN101252794A (en) * | 2007-12-27 | 2008-08-27 | 王子金 | Conductive rod seal insulating device of electric heating stove and electric heating stove using the same |
| CN104142023A (en) * | 2013-05-08 | 2014-11-12 | 表行珠 | The construct for electrode bar of electrode boiler |
| CN104891802A (en) * | 2015-05-27 | 2015-09-09 | 台嘉玻璃纤维有限公司 | Electrode bar mounting structure |
| CN206244636U (en) * | 2016-12-16 | 2017-06-13 | 上海宝钢节能环保技术有限公司 | A kind of top insertion electrode for heat top kiln |
| CN207849734U (en) * | 2018-01-26 | 2018-09-11 | 浙江上能锅炉有限公司 | A kind of electric pole type hot-water boiler |
| CN207945820U (en) * | 2018-01-26 | 2018-10-09 | 浙江上能锅炉有限公司 | A kind of heated by electrodes boiler |
| CN208169516U (en) * | 2018-04-20 | 2018-11-30 | 杭州华源前线能源设备有限公司 | A kind of high-voltage isulation sealing device |
| CN109005606A (en) * | 2018-10-11 | 2018-12-14 | 无锡博睿奥克电气有限公司 | High voltage appearance heating element ferrule structure |
-
2019
- 2019-05-09 CN CN201910384640.XA patent/CN110068001B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2732683A1 (en) * | 1977-07-20 | 1979-02-01 | Normbau Gmbh | Steam generator with immersion electrode for three=phase supply - has screw control rod to adjust current from outside by varying electrode to liq. contact area |
| JP2002013812A (en) * | 2000-06-26 | 2002-01-18 | Toto Ltd | Warm water apparatus |
| CN101252794A (en) * | 2007-12-27 | 2008-08-27 | 王子金 | Conductive rod seal insulating device of electric heating stove and electric heating stove using the same |
| CN104142023A (en) * | 2013-05-08 | 2014-11-12 | 表行珠 | The construct for electrode bar of electrode boiler |
| CN104891802A (en) * | 2015-05-27 | 2015-09-09 | 台嘉玻璃纤维有限公司 | Electrode bar mounting structure |
| CN206244636U (en) * | 2016-12-16 | 2017-06-13 | 上海宝钢节能环保技术有限公司 | A kind of top insertion electrode for heat top kiln |
| CN207849734U (en) * | 2018-01-26 | 2018-09-11 | 浙江上能锅炉有限公司 | A kind of electric pole type hot-water boiler |
| CN207945820U (en) * | 2018-01-26 | 2018-10-09 | 浙江上能锅炉有限公司 | A kind of heated by electrodes boiler |
| CN208169516U (en) * | 2018-04-20 | 2018-11-30 | 杭州华源前线能源设备有限公司 | A kind of high-voltage isulation sealing device |
| CN109005606A (en) * | 2018-10-11 | 2018-12-14 | 无锡博睿奥克电气有限公司 | High voltage appearance heating element ferrule structure |
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| Publication number | Publication date |
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| CN110068001A (en) | 2019-07-30 |
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Denomination of invention: Electrode heating electrode rod device of electrode boiler Effective date of registration: 20221127 Granted publication date: 20200626 Pledgee: Dongguan Sub-branch of Zhejiang Shangyu Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG SHANGNENG BOILER Co.,Ltd. Registration number: Y2022330003250 |
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