CN110701596B - Auxiliary pressure control device for boiler - Google Patents
Auxiliary pressure control device for boiler Download PDFInfo
- Publication number
- CN110701596B CN110701596B CN201910952841.5A CN201910952841A CN110701596B CN 110701596 B CN110701596 B CN 110701596B CN 201910952841 A CN201910952841 A CN 201910952841A CN 110701596 B CN110701596 B CN 110701596B
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- China
- Prior art keywords
- pressure regulating
- connecting pipe
- regulating cylinder
- communicated
- shell
- Prior art date
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 116
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000012528 membrane Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000009467 reduction Effects 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 14
- 235000017491 Bambusa tulda Nutrition 0.000 description 14
- 241001330002 Bambuseae Species 0.000 description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 14
- 239000011425 bamboo Substances 0.000 description 14
- 230000003020 moisturizing effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- F22B37/44—Applications, arrangements, or dispositions of alarm or automatic safety devices of safety valves
- F22B37/446—Safety devices responsive to overpressure
-
- 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
- F22B37/26—Steam-separating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
-
- 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
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses an auxiliary pressure control device for a boiler, which comprises an auxiliary pressure regulating device, wherein the auxiliary pressure regulating device is communicated and arranged on a shell and is used for realizing rapid pressure relief of the shell, the auxiliary pressure regulating device comprises a first pressure regulating cylinder, a second pressure regulating cylinder, a third pressure regulating cylinder and a backflow water replenishing assembly, the first pressure regulating cylinder and the second pressure regulating cylinder are symmetrically connected on an exhaust pipe in the shell, one end, far away from the exhaust pipe, of the first pressure regulating cylinder is communicated with a first connecting pipe, one end, far away from the exhaust pipe, of the second pressure regulating cylinder is communicated with a second connecting pipe, the first connecting pipe and the second connecting pipe are communicated, the third pressure regulating cylinder is vertically communicated at the communication position of the first connecting pipe and the second connecting pipe, the backflow water replenishing assembly is sleeved outside the first connecting pipe and the second connecting pipe, the auxiliary pressure regulating device has three modes and can flexibly respond to various conditions, and the backflow water replenishing assembly is arranged, the liquid shortage condition caused by rapid and large-amplitude pressure reduction is solved, and the whole device is safer and more reliable.
Description
Technical Field
The invention relates to the technical field of boiler equipment, in particular to an auxiliary pressure control device for a boiler.
Background
The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or organic heat carrier with certain heat energy, the origin of the boiler refers to a water container heated on fire, the boiler refers to a place where the fuel is combusted, and the boiler comprises a boiler and a furnace.
However, in the existing boilers on the market, pressure reduction can not be rapidly realized when sudden change occurs, and in addition, the pressure reduction process is accompanied with the loss of liquid, so that the boiler has a liquid shortage phenomenon, and is very dangerous. Accordingly, those skilled in the art have provided an auxiliary pressure control apparatus for a boiler to solve the problems set forth in the background art described above.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an auxiliary pressure controlling means for boiler, includes supplementary pressure regulating device, supplementary pressure regulating device intercommunication sets up on the shell for realize carrying out quick pressure release to the shell, supplementary pressure regulating device includes a pressure regulating section of thick bamboo one, a pressure regulating section of thick bamboo two, a pressure regulating section of thick bamboo three and backward flow moisturizing subassembly, a pressure regulating section of thick bamboo one is connected on the inside blast pipe of shell with a pressure regulating section of thick bamboo bisymmetry, the one end intercommunication of keeping away from the blast pipe on the pressure regulating section of thick bamboo one has connecting pipe one, the one end intercommunication of keeping away from the blast pipe on the pressure regulating section of thick bamboo two has connecting pipe two, connecting pipe one and connecting pipe two phase intercommunication just have a pressure regulating section of thick bamboo three in the vertical intercommunication of its intercommunication department, the outside cover of connecting.
Further, as preferred, the bottom of shell is provided with the heating seat, the heating seat passes through the base to be fixed subaerial, the front surface of shell is provided with the viewing aperture, the viewing aperture is the component of toughened glass material, and one side of viewing aperture is provided with the handle, the front surface of shell is located the below position department intercommunication of viewing aperture and has the discharge gate, the front surface of shell is provided with control panel, and one side intercommunication that the upper surface of shell is close to control panel has the feed inlet.
Further, preferably, a stabilizer bar is fixedly connected between the first pressure regulating cylinder and the second pressure regulating cylinder, and valves are arranged on both the first pressure regulating cylinder and the second pressure regulating cylinder.
Preferably, hollow pipes are transversely fixed in the first pressure regulating cylinder and the second pressure regulating cylinder, and water absorbent cotton is embedded in the hollow pipes.
Further, as preferred, backward flow moisturizing subassembly is including leading cold cover and sump, lead cold cover formula as an organic whole and overlap respectively and establish on connecting pipe one and connecting pipe two, the outside of leading cold cover is provided with multiunit sump, is linked together through the water pipe between the multiunit sump, and multiunit water pipe and lead and have arranged the multiunit between the cold cover and lead the cold spring, water in the sump is circulated by outside water supply system and is supplied with.
Preferably, the first connecting pipe and the second connecting pipe are both L-shaped, the first connecting pipe is obliquely arranged, and one end of the first connecting pipe, which is close to the third pressure regulating cylinder, is higher than one end of the first connecting pipe, which is far away from the third pressure regulating cylinder; the second connecting pipe is obliquely arranged, and one end, close to the third pressure regulating cylinder, of the second connecting pipe is higher than one end, far away from the third pressure regulating cylinder, of the second connecting pipe.
Further, preferably, a second fan is arranged in the third pressure regulating cylinder, a separation membrane is further arranged at the bottom of the third pressure regulating cylinder, a first fan is arranged in the second pressure regulating cylinder, and the first fan and the second fan are controlled by a control panel in a unified manner.
Compared with the prior art, the invention has the beneficial effects that: the auxiliary pressure regulating device provided by the device has three optional modes, can flexibly cope with various conditions, and is also provided with a backflow water supplementing assembly, namely, the first connecting pipe is obliquely arranged, and one end of the first connecting pipe, which is close to the third pressure regulating cylinder, is higher than one end of the first connecting pipe, which is far away from the third pressure regulating cylinder; the connecting pipe II is obliquely arranged, one end, close to the pressure regulating cylinder III, of the connecting pipe II is higher than one end, far away from the pressure regulating cylinder III, of the connecting pipe II, so that liquid can flow back downwards along the connecting pipe I and the connecting pipe II, a separation membrane is further arranged in the device, the separation membrane is a water-gas separation membrane, the liquid is prevented from being pumped away by the fan II, and finally the connecting pipe I and the connecting pipe II are cooled through a cold guide sleeve and a water bin, so that liquefied backflow is achieved, and the device is safe and reliable.
Drawings
FIG. 1 is a schematic perspective view of an auxiliary pressure control device for a boiler;
FIG. 2 is a schematic view of an auxiliary pressure regulating device of an auxiliary pressure control device for a boiler;
in the figure: 1. a viewing port; 2. a discharge port; 3. a heating base; 4. a base; 5. a control panel; 11. a feed inlet; 12. A housing; 13. an auxiliary pressure regulating device; 14. a pressure regulating cylinder I; 15. a second pressure regulating cylinder; 16. a first fan; 17. a hollow pipe; 18. A first connecting pipe; 19. a second connecting pipe; a second connecting pipe; 20. a separation membrane; 21. a cold guide sleeve; 22. a water sump; 23. a third pressure regulating cylinder; 24. And a second fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an auxiliary pressure controlling means for boiler, includes auxiliary pressure regulating device 13, auxiliary pressure regulating device 13 intercommunication sets up on shell 12 for the realization carries out quick pressure release to shell 12, auxiliary pressure regulating device 13 includes a pressure regulating section of thick bamboo one 14, two 15, three 23 of a pressure regulating section of thick bamboo and backward flow moisturizing subassembly, a 14 and two 15 symmetric connections of a pressure regulating section of thick bamboo are on the inside blast pipe of shell 12, the one end intercommunication of keeping away from the blast pipe on a 14 of pressure regulating section of thick bamboo has a connecting pipe 18, the one end intercommunication of keeping away from the blast pipe on a two 15 of pressure regulating section of thick bamboo has two 19 of connecting pipes, a 18 of connecting pipe and two 19 of connecting pipe are linked together and have three 23 of pressure regulating section of thick bamboo in the vertical intercommunication of its intercommunication department, the outside cover of a 18 of connecting pipe and two 19 of connecting pipe is.
As shown in fig. 1, the bottom of shell 12 is provided with heating seat 3, heating seat 3 passes through base 4 to be fixed subaerial, the front surface of shell 12 is provided with viewing aperture 1, viewing aperture 1 is the component of toughened glass material, and one side of viewing aperture 1 is provided with the handle, the front surface of shell 12 is located the below position department intercommunication of viewing aperture 1 and has discharge gate 2, the front surface of shell 12 is provided with control panel 5, and the one side intercommunication that the upper surface of shell 12 is close to control panel 5 has feed inlet 11.
In this embodiment, a stabilizer bar is fixedly connected between the first pressure regulating cylinder 14 and the second pressure regulating cylinder 15, and valves are disposed on both the first pressure regulating cylinder 14 and the second pressure regulating cylinder 15.
In this embodiment, the hollow pipes 17 are transversely fixed in the first pressure regulating cylinder 14 and the second pressure regulating cylinder 15, and the water absorbent cotton is embedded in the hollow pipes 17.
In this embodiment, the backflow water supplementing assembly includes a cold guide sleeve 21 and a water bin 22, the cold guide sleeve 21 is integrated and is respectively sleeved on the first connecting pipe 18 and the second connecting pipe 19, a plurality of groups of water bins 22 are arranged outside the cold guide sleeve 21, the plurality of groups of water bins 22 are communicated with each other through water pipes, a plurality of groups of cold guide springs are arranged between the plurality of groups of water pipes and the cold guide sleeve 21, water in the water bin 22 is circularly supplied by an external water supply system, water in the water bin 22 is cold water, in specific implementation, three modes can be selected, a first valve on the first pressure regulating cylinder 14 and a second fan 24 on the third pressure regulating cylinder 23 are opened, a valve on the second pressure regulating cylinder 15 is closed, and at the moment, gas enters the third pressure regulating cylinder 23 through the first pressure regulating cylinder 14 and flows out of the third pressure regulating cylinder 23; the other is that the valve on the first pressure regulating cylinder 14 is closed, the valve on the second pressure regulating cylinder and the first fan are opened, the second fan on the third pressure regulating cylinder 23 is opened, and at the moment, the gas enters the third pressure regulating cylinder 23 through the second pressure regulating cylinder and flows out of the third pressure regulating cylinder 23; finally, the valves on the first pressure regulating cylinder 14 and the second pressure regulating cylinder 15 are opened, the first fan on the second pressure regulating cylinder 15 is opened, the second fan 24 on the third pressure regulating cylinder is started, gas enters the third pressure regulating cylinder 23 from the first pressure regulating cylinder and the second pressure regulating cylinder respectively and flows out from the third pressure regulating cylinder 23, the three modes are all started when rapid and large-amplitude pressure reduction is needed, so that a large amount of liquid can be lost, and the boiler is easy to lack liquid, therefore, the device is also provided with a backflow water replenishing assembly, namely, the first connecting pipe 18 is obliquely arranged, and one end, close to the third pressure regulating cylinder 23, of the first connecting pipe 18 is higher than one end, far away from the third pressure regulating cylinder 23, of the first connecting pipe 18; the second connecting pipe 19 is obliquely arranged, one end, close to the third pressure regulating cylinder 23, of the second connecting pipe 19 is higher than one end, far away from the third pressure regulating cylinder 23, of the second connecting pipe, so that liquid can flow back downwards along the first connecting pipe and the second connecting pipe conveniently, a separation membrane 20 is further arranged in the device, the separation membrane 20 is a water-gas separation membrane, the liquid is prevented from being taken away by the second fan, and finally the first connecting pipe 18 and the second connecting pipe 19 are cooled through a cold guide sleeve 21 and a water bin 22, and the purpose of forming return water through liquefaction is achieved.
In this embodiment, the first connecting pipe 18 and the second connecting pipe 19 are both L-shaped, the first connecting pipe 18 is arranged obliquely, and one end of the first connecting pipe 18 close to the third pressure regulating cylinder 23 is higher than one end of the first connecting pipe far away from the third pressure regulating cylinder 23; the second connecting pipe 19 is obliquely arranged, and one end of the second connecting pipe 19 close to the third pressure regulating cylinder 23 is higher than one end of the second connecting pipe far away from the third pressure regulating cylinder 23.
In this embodiment, the third pressure regulating cylinder 23 is provided with a second fan 24, the bottom of the third pressure regulating cylinder 23 is further provided with a separation membrane 20, the second pressure regulating cylinder 15 is provided with a first fan 16, and the first fan 16 and the second fan 24 are controlled by the control panel 5 in a unified manner.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An auxiliary pressure control device for a boiler comprises an auxiliary pressure regulating device (13), and is characterized in that the auxiliary pressure regulating device (13) is communicated and arranged on a shell (12), used for realizing rapid pressure relief of the shell (12), the auxiliary pressure regulating device (13) comprises a first pressure regulating cylinder (14), a second pressure regulating cylinder (15), a third pressure regulating cylinder (23) and a backflow water replenishing component, the first pressure regulating cylinder (14) and the second pressure regulating cylinder (15) are symmetrically connected on an exhaust pipe in the shell (12), one end of the pressure regulating cylinder I (14) far away from the exhaust pipe is communicated with a connecting pipe I (18), one end of the pressure regulating cylinder II (15) far away from the exhaust pipe is communicated with a connecting pipe II (19), the first connecting pipe (18) is communicated with the second connecting pipe (19), a third pressure regulating cylinder (23) is vertically communicated with the communicated position of the first connecting pipe and the second connecting pipe, the outer parts of the first connecting pipe (18) and the second connecting pipe (19) are sleeved with backflow water replenishing assemblies; the backflow water supplementing assembly comprises a cold guide sleeve (21) and a water bin (22), the cold guide sleeve (21) is integrated and is respectively sleeved on a first connecting pipe (18) and a second connecting pipe (19), a plurality of groups of water bins (22) are arranged outside the cold guide sleeve (21), the plurality of groups of water bins (22) are communicated through water pipes, a plurality of groups of cold guide springs are arranged between the plurality of groups of water pipes and the cold guide sleeve (21), and water in the water bin (22) is circularly supplied by an external water supply system;
the first connecting pipe (18) and the second connecting pipe (19) are both L-shaped, the first connecting pipe (18) is obliquely arranged, and one end, close to the third pressure regulating cylinder (23), of the first connecting pipe (18) is higher than one end, far away from the third pressure regulating cylinder (23), of the first connecting pipe; the second connecting pipe (19) is obliquely arranged, and one end, close to the third pressure regulating cylinder (23), of the second connecting pipe (19) is higher than one end, far away from the third pressure regulating cylinder (23), of the second connecting pipe.
2. The auxiliary pressure control device for the boiler is characterized in that a heating seat (3) is arranged at the bottom end of the shell (12), the heating seat (3) is fixed on the ground through a base (4), an observation port (1) is arranged on the front surface of the shell (12), the observation port (1) is made of toughened glass, a handle is arranged on one side of the observation port (1), a discharge hole (2) is communicated at the position, below the observation port (1), of the front surface of the shell (12), a control panel (5) is arranged on the front surface of the shell (12), and a feed hole (11) is communicated at one side, close to the control panel (5), of the upper surface of the shell (12).
3. The auxiliary pressure control device for the boiler as claimed in claim 1, wherein a stabilizer bar is fixedly connected between the first pressure regulating cylinder (14) and the second pressure regulating cylinder (15), and valves are arranged on the first pressure regulating cylinder (14) and the second pressure regulating cylinder (15).
4. The auxiliary pressure control device for the boiler as claimed in claim 1, wherein hollow pipes (17) are transversely fixed in the first pressure regulating cylinder (14) and the second pressure regulating cylinder (15), and water absorbent cotton is embedded in the hollow pipes (17).
5. The auxiliary pressure control device for the boiler is characterized in that a second fan (24) is arranged in the third pressure regulating cylinder (23), a separation membrane (20) is further arranged at the bottom of the third pressure regulating cylinder (23), a first fan (16) is arranged in the second pressure regulating cylinder (15), and the first fan (16) and the second fan (24) are uniformly controlled by a control panel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952841.5A CN110701596B (en) | 2019-10-09 | 2019-10-09 | Auxiliary pressure control device for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952841.5A CN110701596B (en) | 2019-10-09 | 2019-10-09 | Auxiliary pressure control device for boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110701596A CN110701596A (en) | 2020-01-17 |
| CN110701596B true CN110701596B (en) | 2021-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910952841.5A Active CN110701596B (en) | 2019-10-09 | 2019-10-09 | Auxiliary pressure control device for boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN110701596B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203489236U (en) * | 2013-09-23 | 2014-03-19 | 淮安安鑫家纺有限公司 | Barrel type steam engine with steam recovery water circulation utilization function |
| CN206130941U (en) * | 2016-06-30 | 2017-04-26 | 诸江 | Automatic equipment of control steam volume |
| CN207113251U (en) * | 2017-08-11 | 2018-03-16 | 轻飞扬科技（天津）有限责任公司 | A kind of boiler heating system pressure relief device of energy-saving type |
| CN207438557U (en) * | 2017-08-11 | 2018-06-01 | 吉林省东北袜业园热力有限公司 | A kind of boiler heating system pressure relief device for avoiding thermal loss |
-
2019
- 2019-10-09 CN CN201910952841.5A patent/CN110701596B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203489236U (en) * | 2013-09-23 | 2014-03-19 | 淮安安鑫家纺有限公司 | Barrel type steam engine with steam recovery water circulation utilization function |
| CN206130941U (en) * | 2016-06-30 | 2017-04-26 | 诸江 | Automatic equipment of control steam volume |
| CN207113251U (en) * | 2017-08-11 | 2018-03-16 | 轻飞扬科技（天津）有限责任公司 | A kind of boiler heating system pressure relief device of energy-saving type |
| CN207438557U (en) * | 2017-08-11 | 2018-06-01 | 吉林省东北袜业园热力有限公司 | A kind of boiler heating system pressure relief device for avoiding thermal loss |
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| Publication number | Publication date |
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| CN110701596A (en) | 2020-01-17 |
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Effective date of registration: 20210525 Address after: 215400 room 205, No.4, 109 Dongcang North Road, Taicang Economic Development Zone, Suzhou City, Jiangsu Province Applicant after: TAICANG TAOXIN INFORMATION TECHNOLOGY Co.,Ltd. Address before: No. 10347, 1st floor, Kechuang e-commerce Industrial Park, Yongle North Road, Ningling County, Shangqiu City, Henan Province, 476700 Applicant before: Ningling Chengshi science and Technology Service Center |
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Effective date of registration: 20231228 Address after: No. 28-1, Zimu Village, Yumushan Township, Zhengxiang District, Hengyang City, Hunan Province, 421000 Patentee after: Hengyang Tengfei Boiler Co.,Ltd. Address before: 215400 room 205, No.4, 109 Dongcang North Road, Taicang Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: TAICANG TAOXIN INFORMATION TECHNOLOGY Co.,Ltd. |