CN104422325B - A kind of straight tube drum type brake storage heater and its manufacture method - Google Patents
A kind of straight tube drum type brake storage heater and its manufacture method Download PDFInfo
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- CN104422325B CN104422325B CN201310367274.XA CN201310367274A CN104422325B CN 104422325 B CN104422325 B CN 104422325B CN 201310367274 A CN201310367274 A CN 201310367274A CN 104422325 B CN104422325 B CN 104422325B
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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
Straight tube drum type brake storage heater and its manufacture method for adapting to that straight heat exchanger tube expands with heat and contract with cold are automatically adjusted the present invention relates to a kind of cylinder, existing box storage heater casing is solved and is connected and can not seal with heat exchanger tube, the problem of causing liquid phase residual, vent plug, low heat exchange efficiency.The present apparatus includes heat storage medium container and the heat exchanger tube through heat storage medium container, and circulate heat transferring medium in heat exchanger tube, it is characterised in that：The heat storage medium container is the cylinder of Horizontal cylinder shape, and cylinder both ends are respectively equipped with tube sheet, and heat exchanger tube seals fixation through tube sheet and with Tube-sheet Welding, the expansion joint of automatic adjusument barrel lenght is additionally provided with cylinder circumference.Liquid phase residual and vent plug problem caused by being bent present invention, avoiding heat exchanger tube, heat transferring medium circulation are more smooth；Cylinder interior energy sets the heat exchanger tube of multigroup three-dimensional arrangement, heat exchange efficiency height；Support is formed using the supporting plate exchange hot leg pipe of spot welding after segmentation, simplifies assembling process.
Description
Technical field
The present invention relates to a kind of heat-exchange apparatus, more particularly to a kind of cylinder automatically adjusts that to adapt to straight heat exchanger tube heat expansion cold
The straight tube drum type brake storage heater and its manufacture method of contracting.
Background technology
Traditional box type storage heater, be exactly heat transfer medium in heat exchanger tube by the way that heat storage medium is placed on the shell of box-shaped
In body, and heat exchanger tube then passes through heat storage medium.
The advantages of box type storage heater：Placement is steady, supporting construction is simple, easy to manufacture, convenient transportation, suitable for low temperature
When the little operating mode of straight heat exchanger tube expanding with heat and contract with cold.
The shortcomings that box type storage heater：1. because the expanding with heat and contract with cold of heat exchanger tube is more than the expanding with heat and contract with cold of casing, and case
The geometric properties of body, which determine to install expansion joint etc. on casing and can reliably seal and can, follows heat exchanger tube heat expansion cold
The structure of contracting, thus heat exchanger tube be unable to both ends simultaneously and welding box body, it is necessary at least one end passes freely through casing；If 2. heat exchanger tube
Both ends all pass freely through casing, then bring another question, i.e. heat exchanger tube is from will through casing less than heat storage medium face
Heat storage medium is caused to leak, heat exchanger tube is bent upwards from higher than heat storage medium face and passes through casing, if heat transfer medium is single-phase (liquid
Mutually or gas phase) fluid is certainly feasible, but if heat transfer medium be the two-phase fluid that can be undergone phase transition in heat-accumulating process (such as
Water), liquid phase fluid will remain in horizontal segment, and gaseous fluid is then trapped in bending two ends section in pipe and forms vent plug, therefore have
For fear of the flowing and heat transfer of heat transfer medium；3. if heat exchanger tube one end is passing freely through casing, the other end higher than heat storage medium face
Less than heat storage medium face and welding box body, then multilayer stringing is unable in single case, influences heat exchange efficiency, therefore causes whole accumulation of heat
The volume and scale of device are big.
The content of the invention
It is an object of the invention to the heat exchanger tube and casing expanding with heat and contract with cold for overcoming existing box type storage heater are inconsistent, lead
Cause heat exchanger tube be unable to both ends simultaneously and welding box body, and then cause heat exchanger tube need to be bent upwards from higher than heat storage medium position set
Inlet and outlet, so as to a series of problem such as bring liquid phase residual in heat exchanger tube, vent plug, heat exchange efficiency low, there is provided a kind of cylinder energy
Expand with heat and contract with cold the straight tube drum type brake storage heater of regulation with heat exchanger tube, and the manufacture method of the straight tube drum type brake storage heater.
The technical solution adopted for the present invention to solve the technical problems is：A kind of straight tube drum type brake storage heater, including accumulation of heat
Media Containers and the heat exchanger tube through heat storage medium container, the interior circulation heat transferring medium of heat exchanger tube, the heat storage medium container is sleeping
The columned cylinder of formula, cylinder both ends are respectively equipped with tube sheet, and heat exchanger tube seals fixation, cylinder circle through tube sheet and with Tube-sheet Welding
The expansion joint of automatic adjusument barrel lenght is additionally provided with week.The Tube-sheet Welding of heat exchanger tube and barrel end seals, using expansion
The difference of expanding with heat and contract with cold that section comes between adaptive adjustment barrel body and heat exchanger tube, with the box type storage heater phase described in background technology
Than, the inlet and outlet of heat exchanger tube disengaging cylinder need not be reached above heat storage medium, and therefore, heat exchange pipeline can be in be horizontally disposed with,
Avoid the rough sledding such as liquid phase residual, vent plug caused by heat transferring medium liquid-gas phase transition in heat exchange pipeline.Simultaneously as each change
Hot channel only occupies a horizontal plane, can set the heat exchange pipeline of multilayer in cylinder from top to bottom, improves heat exchange efficiency, reduces
Regenerative apparatus overall volume and scale.
Preferably, the heat exchanger tube includes and the heat transfer manifold of Tube-sheet Welding and the heat exchange branch being arranged in cylinder
Pipe, a heat transfer manifold correspond to more heat exchange branch pipes, and heat transfer manifold is changed with corresponding more heat exchange branch pipes by header to be docked.
Heat exchange pipeline connects header, and multiple heat exchange branch pipes are connected after header current stabilization and shunting, and more heat exchange branch pipes set increase heat exchange
Area, improve heat exchange efficiency.
Preferably, be arranged with from top to bottom in the cylinder it is a plurality of independently of each other, mutually do not connect heat exchanger tube.Heat exchanger tube and
The sealing welding of body end surface, makes every heat exchanger tube could be arranged to only occupy the horizontal tube of a horizontal plane, and cylinder is interior not
Same level face sets a plurality of heat exchanger tube, forms the heat exchange branch pipe tube bank of solid, and heat exchange efficiency is high.Heat exchanger tube in heat transferring medium container
Divide more, every heat exchanger tube is all to include heat exchange supervisor, header, the horizontal tube for the branch pipe that exchanges heat, and circulation, which exchanges heat, in heat exchanger tube is situated between
Matter, and do not connected between each heat exchanger tube, thus it is avoided that this meeting extreme influence storage heater thermograde of gas-liquid layering is built
Vertical situation occurs.Compared with traditional heat exchangers, the header of the present apparatus is also in heat storage medium container.
Preferably, the height of header is more than the height of heat transfer manifold and the branch pipe that exchanges heat, the connection of neighbouring heat exchanger tube
Case mutually staggers along cylinder direction.It after header mutually staggers, can be formed with the vertical direction certain overlapping, make heat exchange pipeline
Arrangement is closer.
Preferably, the heat exchange branch pipe of same heat exchanger tube is arranged in same level.Ensure in every heat exchange branch pipe
The flowing of heat transferring medium.
Preferably, the supporting plate of support heat exchange branch pipe, supporting plate outer rim and cylinder inner surface are additionally provided with the cylinder
Adaptation, supporting plate are provided with multirow pore, and each pore per a line is located at same level height, and each branch pipe that exchanges heat is from supporting plate
Corresponding pore passes through.Exchanging heat, branch diameter is small, and length is big, sets supporting plate to exchange hot leg pipe and is supported, avoids heat exchange branch
Pipe is deformed, and a supporting plate is set every one section in cylinder, and the quantity of supporting plate is selected according to barrel lenght.
Preferably, the centre-height wire cutting of the supporting plate along often row pore forms multiple support bars, support bar with
After heat exchange branch pipe stacks assembling successively, neighbouring support bar spot welding is fixed.Supporting plate is divided into multiple water using wire cutting
Riglet shape, it is easy to be stacked alternately assembling with heat exchange branch pipe assembling, Multi-layer exchanging heat branch pipe with support bar, spot welding is used between support bar
Retighten into one piece of supporting plate.
Preferably, the heat exchange leg jacket weldering helical fin forms finned tube, helical fin is in heat exchange branch pipe and branch
Fagging link position leaves the interval for installation.
It is bent to form preferably, the heat exchange supervisor and header can be same root pipeline.Heat exchange supervisor end is curved
After 90 degree of folding, the end after bending is header, then opens up multiple intercommunicating pores in header side wall and be connected respectively with heat exchange branch pipe.
Preferably, being provided with the liner plate of annular on the inside of the cylinder of the expansion joint position, liner plate is provided with along cylinder direction
Gap, the cylinder inboard wall of liner plate one end and expansion joint side is welded and fixed, the cylinder of the liner plate other end and expansion joint opposite side
Inwall is slidably matched.Liner plate makes the cylinder inboard wall at expansion joint keep continuity, when the heat-exchanging tube bundle assembled fills in cylinder
Guide effect is played, and ensures that the cylinder of expansion joint both sides will not relative dislocation.Cracked simultaneously on liner plate, when expansion joint stretches
When, heat storage medium can pass in and out expansion joint from gap.
A kind of manufacture method of above-mentioned straight tube drum type brake storage heater, comprises the following steps：
A, cylinder is distinguished two sections, wherein one section of madial wall welding liner plate, liner plate is inserted in another section of cylinder, and will
Two sections of cylinders are fixedly connected by expansion joint；
B, more heat exchanger tubes are made, every heat exchanger tube is produced as follows：More heat exchange branch pipe same level arrangements, each heat exchange branch
Pipe both ends are respectively welded on two headers, the opposite side welding heat transfer manifold of header, set weldering helical fin on the branch pipe that exchanges heat, spiral shell
Rotation fin is used for every fixed position formation interruption and supporting plate is installed；
C, some external diameters are chosen to be slightly less than cylinder internal diameter and the circular steel plate of liner plate can be passed through as supporting plate, supporting plate
Middle part rushes the pore for setting multirow, and pore aperture is adapted to heat exchange branch pipe, often row pore interval and the heat exchange branch pipe of each heat exchanger tube
Interval is consistent, and often row pore is located at same horizontal line；
D, along supporting plate often row pore center line carry out wire cutting every piece of supporting plate is cut into multiple support bars, make up and down
Two adjacent support bar adjacent sides have corresponding half pore respectively；
E, the heat exchange branch pipe clamp of the heat exchanger tube of lower side is set in half pore of bottom support bar, then by secondary lower section
Support bar be fastened on bottom support bar and carry out spot welding, support bar and heat exchanger tube are stacked with this sequence alternate, formed with branch
The heat exchange branch pipe tube bank of fagging support, keeps neighbouring heat exchanger tube header interlaced when stacking；
F, heat exchange branch pipe tube bank is sent into cylinder from cylinder one end, and keeps heat transfer manifold to be located at the both ends of cylinder and export
Place；
G, fasten the tube sheet at cylinder both ends, make heat transfer manifold through tube sheet and with tube sheet sealing welding.
Cylinder and heat exchange pipeline automatic adjusument of the present invention collapses, and heat exchange pipeline and barrel end sealing, ensures heat exchanger tube
Horizontal tube can be arranged to, avoid liquid phase residual and vent plug problem caused by heat exchanger tube bending, heat transferring medium circulation is more smooth；
Cylinder interior energy sets the heat exchanger tube of multigroup three-dimensional arrangement, heat exchange efficiency height；Hot leg pipe is exchanged using the supporting plate of spot welding after segmentation
Support is formed, simplifies assembling process, ensures the overall job stability of regenerative apparatus.
Brief description of the drawings
Fig. 1 is a kind of internal structure schematic diagram of the present invention.
Fig. 2 is Fig. 1 of the present invention overlook direction schematic diagram.
Fig. 3 is supporting plate positional structure schematic diagram of the present invention.
Fig. 4 is the front schematic view of supporting plate cutting of the present invention.
Fig. 5 is a kind of header structural representation of the present invention.
Fig. 6 is second of header structural representation of the invention.
In figure：1-heat exchange supervisor, 2-tube sheet, 3-header, 4-heat exchange branch pipe, 5-supporting plate, 6-cylinder, 7-lining
Plate, 8-expansion joint, 9-bearing.
Embodiment
Below by specific embodiment and with reference to accompanying drawing, the present invention is further described.
Embodiment 1：A kind of straight tube drum type brake storage heater, as shown in Figure 1, Figure 2, Figure 5.The present apparatus includes horizontal cylindric
Cylinder 6, cylinder are divided into two sections of left and right, and centre is docked using expansion joint 8, and liner plate 7, one end welding of liner plate 7 are provided with expansion joint
To on the inside of the cylinder of expansion joint side, other end activity is plugged on the inside of the cylinder of expansion joint opposite side, the lower section of two sections of cylinders
It is respectively equipped with bearing 9.The end of cylinder is sealed using tube sheet 2.Filling heat storage medium in cylinder 6, heat exchanger tube is through cylinder and wears
The heat storage medium crossed in cylinder.Every heat exchanger tube includes being responsible for 1, positioned at cylinder through tube sheet 2 and with the heat exchange of tube sheet sealing welding
More internal heat exchange branch pipes 4, are transferred by header 3 between heat exchange supervisor 1 and heat exchange branch pipe 4 and shunted, same root heat exchanger tube
Heat exchange supervisor 1, header 3 and heat exchange branch pipe 4 axis are located at same level.There are more heat exchange in cylinder from top to bottom
Pipe, as shown in figure 5, the header 3 of each heat exchanger tube is arranged on a vertical curve being mutually aligned.
As shown in Figure 1, 2, 3, set is welded with helical fin on heat exchange branch pipe 4, and a segment distance is provided with support heat exchange branch
The supporting plate 5 of pipe 4, heat exchange branch pipe have interruption with supporting plate junction helical fin.
The structure of supporting plate 5 is as shown in figure 4, supporting plate supports to be slightly less than the round plate of cylinder and liner plate internal diameter with external diameter
Multirow pore 10 is offered on plate 5, often row pore centerline will support printed line in same level along every row pore center line
Cutting into multiple support bars 11, the heat exchange branch pipe of each support bar and each heat exchanger tube is stacked alternately assembling, and by adjacent supports bar point
Solid welding re-forms overall supporting plate surely.Under the support of supporting plate, the heat exchange branch pipe of more heat exchanger tubes forms matrix form
Tube bank, improve heat exchange efficiency.
The manufacturing process of the present apparatus is as follows：
A, cylinder is distinguished two sections, wherein one section of madial wall welding liner plate, liner plate is inserted in another section of cylinder, and will
Two sections of cylinders are fixedly connected by expansion joint；
B, more heat exchanger tubes are made, every heat exchanger tube is produced as follows：More heat exchange branch pipe same level arrangements, each heat exchange branch
Pipe both ends are respectively welded on two headers, the opposite side welding heat transfer manifold of header, set weldering helical fin on the branch pipe that exchanges heat, spiral shell
Rotation fin is used for every fixed position formation interruption and supporting plate is installed；
C, some external diameters are chosen to be slightly less than cylinder internal diameter and the circular steel plate of liner plate can be passed through as supporting plate, supporting plate
Middle part rushes the pore for setting multirow, and pore aperture is adapted to heat exchange branch pipe, often row pore interval and the heat exchange branch pipe of each heat exchanger tube
Interval is consistent, and often row pore is located at same horizontal line；
D, along supporting plate often row pore center line carry out wire cutting every piece of supporting plate is cut into multiple support bars, make up and down
Two adjacent support bar adjacent sides have corresponding half pore respectively；
E, the heat exchange branch pipe clamp of the heat exchanger tube of lower side is set in half pore of bottom support bar, then by secondary lower section
Support bar be fastened on bottom support bar and carry out spot welding, support bar and heat exchanger tube are stacked with this sequence alternate, formed with branch
The heat exchange branch pipe tube bank of fagging support, keeps neighbouring heat exchanger tube header interlaced when stacking；
F, heat exchange branch pipe tube bank is sent into cylinder from cylinder one end, and keeps heat transfer manifold to be located at the both ends of cylinder and export
Place；
G, fasten the tube sheet at cylinder both ends, make heat transfer manifold through tube sheet and with tube sheet sealing welding.
Embodiment 2：A kind of tubular style storage heater, as shown in Figure 6.The height of present apparatus header 3 is more than heat exchange supervisor 1 and changed
The height of hot leg pipe 4, the header 3 of adjacent heat exchange tubes mutually staggers in the horizontal direction, and is superimposed with each other in vertical direction, makes heat exchange
Pipe arrangement is even closer.
Claims (7)
1. a kind of straight tube drum type brake storage heater, including heat storage medium container and the heat exchanger tube through heat storage medium container, heat exchanger tube
Interior circulation heat transferring medium, it is characterised in that：The heat storage medium container is the cylinder of Horizontal cylinder shape, and cylinder both ends are respectively equipped with
Tube sheet, heat exchanger tube seal fixation through tube sheet and with Tube-sheet Welding, automatic adjusument barrel lenght are additionally provided with cylinder circumference
Expansion joint, the heat exchanger tube include and the heat transfer manifold of Tube-sheet Welding and the heat exchange branch pipe being arranged in cylinder, a heat exchange
House steward corresponds to more heat exchange branch pipes, and heat transfer manifold is changed with corresponding more heat exchange branch pipes by header to be docked, in the cylinder
The supporting plate of support heat exchange branch pipe is additionally provided with, supporting plate outer rim is adapted to cylinder inner surface, and supporting plate is provided with multirow pore, often
Each pore of a line is located at same level height, and each branch pipe corresponding pore from supporting plate that exchanges heat passes through；
Manufacture method comprises the following steps：
A, cylinder is divided into two sections, wherein one section of madial wall welding liner plate, liner plate is inserted in another section of cylinder, and by two sections
Cylinder is fixedly connected by expansion joint；
B, more heat exchanger tubes are made, every heat exchanger tube is produced as follows：More heat exchange branch pipe same level arrangements, each branch pipe two that exchanges heat
End is respectively welded on two headers, the opposite side welding heat transfer manifold of header, set weldering helical fin on the branch pipe that exchanges heat, spiral wing
Piece forms interruption every fixed position and is used to install with supporting plate；
C, some external diameters are chosen to be slightly less than cylinder internal diameter and the circular steel plate of liner plate can be passed through as supporting plate, supporting plate middle part
Punching sets the pore of multirow, and pore aperture is adapted to heat exchange branch pipe, often row pore interval and the heat exchange branch interval of each heat exchanger tube
Unanimously, often row pore is located at same horizontal line；
D, along supporting plate often row pore center line carry out wire cutting every piece of supporting plate is cut into multiple support bars, make neighbouring
Two support bar adjacent sides there is corresponding half pore respectively；
E, the heat exchange branch pipe clamp of the heat exchanger tube of lower side is set in half pore of bottom support bar, then by the branch of secondary lower section
Stay, which is fastened on bottom support bar, carries out spot welding, support bar and heat exchanger tube is stacked with this sequence alternate, formed with supporting plate
The heat exchange branch pipe tube bank of support, keeps neighbouring heat exchanger tube header interlaced when stacking；
F, heat exchange branch pipe tube bank is sent into cylinder from cylinder one end, and keeps heat transfer manifold to be located at the both ends exit of cylinder；
G, fasten the tube sheet at cylinder both ends, make heat transfer manifold through tube sheet and with tube sheet sealing welding.
A kind of 2. straight tube drum type brake storage heater according to claim 1, it is characterised in that：Arranged from top to bottom in the cylinder
Show a plurality of separate, mutual disconnected heat exchanger tube.
A kind of 3. straight tube drum type brake storage heater according to claim 2, it is characterised in that：It is total that the height of header is more than heat exchange
The height of pipe and heat exchange branch pipe, the header of neighbouring heat exchanger tube mutually stagger along cylinder direction.
A kind of 4. straight tube drum type brake storage heater according to claim 1 or 2 or 3, it is characterised in that：Same heat exchanger tube
Heat exchange branch pipe is arranged in same level.
A kind of 5. straight tube drum type brake storage heater according to claim 4, it is characterised in that：The supporting plate is along often row pore
Centre-height wire cutting form multiple support bars, after support bar stacks assembling successively with heat exchange branch pipe, neighbouring support
Bar spot welding is fixed.
A kind of 6. straight tube drum type brake storage heater according to claim 4, it is characterised in that：The heat exchange leg jacket weldering spiral shell
Revolve fin and form finned tube, helical fin leaves the interval for installation in heat exchange branch pipe and supporting plate link position.
A kind of 7. straight tube drum type brake storage heater according to claim 1 or 2 or 3, it is characterised in that：The expansion joint position
Cylinder on the inside of be provided with the liner plate of annular, liner plate is provided with the gap along cylinder direction, the cylinder of liner plate one end and expansion joint side
Internal wall is welded and fixed, and the cylinder inboard wall of the liner plate other end and expansion joint opposite side is slidably matched.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310367274.XA CN104422325B (en) | 2013-08-22 | 2013-08-22 | A kind of straight tube drum type brake storage heater and its manufacture method |
| PCT/CN2014/084877 WO2015024518A1 (en) | 2013-08-22 | 2014-08-21 | Cylindrical gradient heat accumulator and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310367274.XA CN104422325B (en) | 2013-08-22 | 2013-08-22 | A kind of straight tube drum type brake storage heater and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104422325A CN104422325A (en) | 2015-03-18 |
| CN104422325B true CN104422325B (en) | 2018-04-03 |
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| CN201310367274.XA Active CN104422325B (en) | 2013-08-22 | 2013-08-22 | A kind of straight tube drum type brake storage heater and its manufacture method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107283082A (en) * | 2017-08-07 | 2017-10-24 | 宁波金凤焊割机械制造有限公司 | A kind of steel pipe bundle annex assemble method |
| CN107569866A (en) * | 2017-10-13 | 2018-01-12 | 茂名瑞派石化工程有限公司 | A kind of new kettle type reboiler and its manufacturing process |
| CN109940347B (en) * | 2019-03-27 | 2020-04-21 | 江苏利柏特股份有限公司 | Forming method of membrane shell tube bundle in module |
| CN111633367B (en) * | 2020-04-13 | 2024-01-19 | 武汉船用机械有限责任公司 | Welding device and welding method for gas turbine bleed strut |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212767Y (en) * | 1994-01-24 | 1995-11-15 | 王闰 | Heat exchanger without fixed pipe plate and pipe shell |
| CN2562156Y (en) * | 2002-06-10 | 2003-07-23 | 清华大学 | Multichannel closed external melting ice and storing ice tank |
| US7225860B2 (en) * | 2005-08-03 | 2007-06-05 | Honeywell International, Inc. | Compact heat battery |
| JP2007225268A (en) * | 2006-02-21 | 2007-09-06 | Michiko Yamaguchi | Latent heat accumulator provided with heat exchanging function |
| CN202204355U (en) * | 2011-07-04 | 2012-04-25 | 德庆县银龙实业有限公司 | Horizontal type heat exchanger |
| CN102679795A (en) * | 2012-05-30 | 2012-09-19 | 中冶南方(武汉)威仕工业炉有限公司 | Zigzag tube plate used for finned tube exchanger |
| CN203550705U (en) * | 2013-08-22 | 2014-04-16 | 杭州工电能源科技有限公司 | Straight tube cylindrical heat accumulator |
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Effective date of registration: 20221221 Address after: No. 19, Gaoyou Road, Xuhui District, Shanghai 200031 Patentee after: Shanghai Alliance Investment Ltd. Address before: 201203 Block 22301-1143, Building 14, Pudong Software Park, No. 498, Guoningjing Road, Zhangjiang Hi Tech Park, Shanghai Patentee before: SHANGHAI GD ENERGY TECHNOLOGY Co.,Ltd. |