CN203550706U - Gradient heat accumulator with U-shaped tubes - Google Patents
Gradient heat accumulator with U-shaped tubes Download PDFInfo
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- CN203550706U CN203550706U CN201320569677.8U CN201320569677U CN203550706U CN 203550706 U CN203550706 U CN 203550706U CN 201320569677 U CN201320569677 U CN 201320569677U CN 203550706 U CN203550706 U CN 203550706U
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- medium container
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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
The utility model relates to a gradient heat accumulator with U-shaped tubes. By the aid of the gradient heat accumulator, a series of problems of internal liquid phase retention, air blockage, low heat exchange efficiency and the like of heat exchange tubes of an existing box type heat accumulator can be solved. The gradient heat accumulator with the U-shaped tubes comprises a heat accumulation medium container and heat exchange tubes, the heat exchange tubes penetrate the heat accumulation medium container, and heat exchange media flow in the heat exchange tubes. The gradient heat accumulator is characterized in that the heat accumulation medium container is an airtight shell, a tube plate is arranged on one side of the airtight shell, the other sides of the airtight shell are closed, the heat exchange tubes are the U-shaped tubes, bent portions of the heat exchange tubes are positioned in the heat accumulation medium container, and two ends of each heat exchange tube penetrate the tube plate and are hermetically fixedly welded with the tube plate. The gradient heat accumulator has the advantages that thermal expansion of the heat exchange tubes is unconstrained by the heat accumulation medium container, and the heat exchange tubes can be horizontal tubes, so that the problems of liquid phase retention and air blockage due to bending of existing heat exchange tubes can be solved; the heat accumulation medium container is divided into a plurality of heat accumulation chambers by partition plates and support plates, so that temperature gradients can be formed in the heat accumulation medium container, and the heat exchange efficiency can be improved.
Description
Technical field
The utility model relates to a kind of heat-exchange apparatus, relates in particular to a kind of U pipe gradient storage heater.
Background technology
Traditional box type storage heater, is exactly that heat transfer medium passes through in heat exchanger tube, and heat storage medium is placed in the housing of box-shaped, and heat exchanger tube passes from box-shaped shell both sides respectively through heat storage medium.
The advantage of box type storage heater: place steadily, supporting construction is simple, easily manufacture, convenient transportation, the little operating mode of the straight heat exchanger tube amount of expanding with heat and contract with cold while being applicable to low temperature.
The shortcoming of box type storage heater: 1. because the amount of expanding with heat and contract with cold of heat exchanger tube is greater than the amount of expanding with heat and contract with cold of casing, therefore heat exchanger tube can not two ends simultaneously and welding box body, at least one end passes freely through casing; 2. heat exchanger tube will cause heat storage medium to leak from pass freely through casing lower than heat storage medium face, therefore heat exchanger tube need to be bent upwards from passing casing higher than heat storage medium face, if heat transfer medium is that yes is feasible for single-phase (liquid phase or gas phase) fluid, if but heat transfer medium is the two-phase fluid (as water) that can undergo phase transition in heat-accumulating process, liquid phase fluid will be trapped in horizontal segment, gaseous fluid is trapped in bending two ends section in pipe and forms vent plug, is therefore an impediment to flowing and conducting heat of heat transfer medium; 3. heat exchanger tube free end is upwards folded into higher than heat storage medium face and passes freely through casing, single heat exchange tube is that existing traversing section, the solid that has again vertical section are arranged, causing in single case can not multilayer stringing, affects heat exchange efficiency, therefore causes the volume of whole regenerative apparatus and scale large.
Summary of the invention
The purpose of this utility model is that the heat exchanger tube that overcomes existing box type storage heater passes from casing both sides, and the heat exchanger tube casing amount of expanding with heat and contract with cold is inconsistent, cause heat exchanger tube can not two ends simultaneously and welding box body, and then cause heat exchanger tube need be bent upwards from import and export being set higher than heat storage medium position, thereby bring a series of problems such as liquid phase residual in heat exchanger tube, vent plug, heat exchange efficiency are low, provide a kind of U-shaped pipe that adopts from the U pipe gradient storage heater of one-sided turnover casing.
The utility model solves the technical scheme that its technical problem adopts: a kind of U pipe gradient storage heater, comprise heat storage medium container and through the heat exchanger tube of heat storage medium container, circulation heat transferring medium in heat exchanger tube, described heat storage medium container is that a side is provided with the closed shell that tube sheet, all the other each side seals close, heat exchanger tube is U-shaped pipe, bending part is positioned at heat storage medium container, and heat exchanger tube two ends all pass and fix with Tube-sheet Welding sealing from tube sheet.Heat exchanger tube is U-shaped turnover in heat storage medium container, the two ends while welded seal that heat exchanger tube is passed in and out to heat storage medium container is fixed on the tube sheet of the same side, the part that heat exchanger tube is arranged in heat storage medium container can have the flexible free degree at heat storage medium container, meet the demand that heat exchanger tube expands with heat and contract with cold, compare with the box type storage heater described in background technology, the import and export of heat exchanger tube turnover heat storage medium container become one-sided from both sides, avoided heat storage medium container and the heat exchanger tube inconsistent problem of expanding with heat and contract with cold, therefore, heat exchange pipeline can be and is horizontally disposed with, avoided the liquid phase residual that in heat exchange pipeline, heat transferring medium liquid-gas phase transition causes, the rough sledding such as vent plug.Meanwhile, because each heat exchanger tube only occupies a horizontal plane, in heat storage medium container, the heat exchanger tube of multilayer can be set at different from top to bottom horizontal planes, improve heat exchange efficiency, reduce volume and the scale of regenerative apparatus integral body.
As preferably, described heat exchanger tube two ends are the heat exchange house steward with Tube-sheet Welding, middle part is to be arranged on many U-shaped heat exchange arms in heat storage medium container, the corresponding many heat exchange arms of heat exchange house steward, and heat exchange house steward changes docking with many corresponding heat exchange arms by header.The U-shaped section of heat exchanger tube is positioned at the bosom that heat exchange arm stretches into heat storage medium container.Heat exchange house steward connects header, through header current stabilization, is connected a plurality of heat exchange arms after shunting, and many heat exchange arms arrange increase heat exchange area, improves heat exchange efficiency.
As preferably, the heat exchange arm of same heat exchanger tube is arranged in same level, and the crooked process radius of the heat exchange arm of arranging from outside to inside reduces gradually.Guarantee flowing of heat transferring medium in every heat exchange arm.
As preferably, in described heat storage medium container, be arranged with from top to bottom many separate, mutual disconnected heat exchanger tubes.The tube sheet seal welding of heat exchanger tube and heat storage medium container end face, can seepage even if make heat exchanger tube pass that heat storage medium container place is positioned under heat storage medium liquid level also not, make every heat exchanger tube can be set to only occupy the horizontal tube of a horizontal plane, heat storage medium container arranges many heat exchanger tubes at different level, form three-dimensional heat exchange arm tube bank, heat exchange efficiency is high.In heat storage medium container, heat exchanger tube divides many, every heat exchanger tube is all the horizontal tube that includes heat exchange supervisor, header, heat exchange arm, circulation heat transferring medium in heat exchanger tube, and between each heat exchanger tube, be not communicated with, so just can avoid this meeting of gas-liquid layering greatly to affect the situation generation that storage heater thermograde is set up.Compare with traditional heat exchangers, the header of this device is also in heat storage medium container, and what pass tube sheet is only heat exchange house steward rather than more heat exchange arm, has reduced and has needed passing through a little of welded seal.
As preferably, the height of header is greater than the height of heat exchange house steward and heat exchange arm, and the header of neighbouring heat exchanger tube staggers mutually along heat exchanger tube throughput direction.After header staggers mutually, can in the vertical direction form certain overlappingly, heat exchange pipeline is arranged tightr.
As preferably, in described heat storage medium container, be also provided with the gripper shoe of some support heat exchange arms, gripper shoe outer rim and heat storage medium inner surface of container are adaptive, gripper shoe is provided with multirow pore, each pore of every a line is positioned at same level height, and each heat exchange arm corresponding pore gripper shoe passes.Heat exchange branch diameter is little, and length is large, gripper shoe heat exchanging arm is set and supports, and avoids heat exchange arm distortion, in heat storage medium container, a gripper shoe is set every one section, according to heat exchange, props up the quantity that length of tube is selected gripper shoe.
As preferably, the pore in gripper shoe is symmetrical arranged, and two craspedodrome part pipeline symmetries of U-shaped heat exchange arm are erected in the pore of the symmetrically arranged both sides of gripper shoe.
As preferably, described gripper shoe forms a plurality of support bars along the centre-height line cutting in every line pipe hole, and support bar and heat exchange arm stack after assembling successively, and neighbouring support bar spot welding is fixed.Gripper shoe adopts line cutting to be divided into a plurality of horizontal strips, is convenient to and the assembling of heat exchange arm, and Multi-layer exchanging heat arm and support bar are stacked alternately assembling, adopt spot welding to retighten into a gripper shoe between support bar.
As preferably, the described heat exchange arm section overcoat weldering helical fin of keeping straight on forms a finned tube, and helical fin leaves the interval for installing at heat exchange arm and gripper shoe link position.
As preferably, in described heat storage medium container, U-shaped heat exchanger tube two keep straight between section, be provided with vertically, dividing plate longitudinally.Heat exchange medium temperature mobile in two craspedodrome sections of U-shaped heat exchanger tube is different, adopts dividing plate to separate formation temperature gradient, raising heat exchange efficiency.
As other preferably, in described heat storage medium container, U-shaped heat exchanger tube two keep straight between section, be provided with vertically, dividing plate longitudinally, described dividing plate is separated into left and right two parts by each gripper shoe, two parts gripper shoe and dividing plate are welded and fixed.Under dividing plate and gripper shoe collaborative, be separated in by cylindrical shell along the heat exchanger tube heat transferring medium Heat Room that direction distributes that flows, form a plurality of accumulation of heats space with thermograde, improve heat exchange efficiency.
As preferably, described heat exchange supervisor and header can be bent to form for same pipeline.Heat exchange is responsible for after end horizontal buckling 90 degree, and the end after bending is header, then at header sidewall, offers a plurality of intercommunicating pores and be connected respectively with heat exchange arm.
As preferably, described told heat storage medium container is square box or horizontal column-shaped barrel.
A manufacture method for above-mentioned U pipe gradient storage heater, comprises the following steps:
A, making heat storage medium container, make the housing of a side opening and the tube sheet matching with open side;
B, make many heat exchanger tubes, every heat exchanger tube is produced as follows: make U-shaped heat exchange arm that many crooked process radius reduce gradually, be aligned to same level from outside to inside, each heat exchange arm two ends are welded on respectively on two headers, the opposite side welding heat exchange house steward of header, cover weldering helical fin on heat exchange arm, helical fin forms and is interrupted for installing with gripper shoe every fixed position;
C, choose some undersized in the steel plate of heat storage medium container section size as gripper shoe, the pore of multirow is established in the punching of gripper shoe middle part, pore aperture and heat exchange arm matched in clearance, every line pipe hole is divided into left and right two parts, corresponding and keep interval consistent with the both sides of the many U-shaped heat exchange arms section of keeping straight on respectively, and every line pipe hole is positioned at same level line;
D, along the vertical center line of gripper shoe, gripper shoe is cut into left and right two parts, and along the horizontal central line in the every line pipe of gripper shoe hole, carry out line cutting every gripper shoe is cut into a plurality of support bars, make two neighbouring support bar adjacent side there is respectively half pore of correspondence;
E, choose the dividing plate with heat storage medium container longitudinal center face height adaptation, insert two of the capable heat exchange arm of U and keep straight between section;
F, left and right, below two support bars are welded and fixed respectively to the bottom of wanting dividing plate both sides, the heat exchange of the heat exchanger tube of lower side is propped up in half pore that pipe clamp is set to supported underneath bar, then the support bar of inferior below be fastened on to the enterprising spot welding of supported underneath bar and be welded and fixed with dividing plate, with this sequence alternate, stack support bar and heat exchanger tube, and keep the simultaneously operating of dividing plate both sides, be formed with the heat exchange arm tube bank of gripper shoe support, baffle for separating;
G, heat exchange house steward through tube sheet and with tube sheet seal welding, the tube bank of heat exchange arm is sent into tube sheet outer rim and heat storage medium container casing open side sealing fastening from heat storage medium container casing open side.
The utility model heat exchanger tube takes the shape of the letter U, from the one side turnover of heat storage medium container, the restriction of expanding with heat and contract with cold and thering is the free degree flexible in heat storage medium container, not being subject to heat storage medium container of heat exchanger tube, heat exchanger tube is imported and exported and can be fixed with heat storage medium container welded seal, can there is not seepage, make heat exchanger tube can be arranged to horizontal tube, liquid phase residual and the vent plug problem of having avoided heat exchanger tube bending to cause, heat transferring medium circulation is more smooth and easy; The many three-dimensional heat exchanger tubes of arranging can be set in heat storage medium container, and heat exchange efficiency is high; Adopt dividing plate and gripper shoe that heat storage medium container is separated into a plurality of regenerator, formation temperature gradient in heat storage medium container, improves heat exchange efficiency; The gripper shoe heat exchanging arm that rear spot welding is cut apart in employing forms support, has simplified assembling process, guarantees the job stability of storage heater integral body.
Accompanying drawing explanation
Fig. 1 is a kind of internal structure schematic diagram of the utility model.
Fig. 2 be the utility model Fig. 1 overlook direction schematic diagram.
Fig. 3 is the utility model gripper shoe positional structure schematic diagram.
Fig. 4 is the front schematic view of the utility model gripper shoe cutting.
Fig. 5 is a kind of header structural representation of the utility model.
Fig. 6 is the utility model the second header structural representation.
In figure: 1-heat exchange supervisor, 2-tube sheet, 3-header, 4-heat exchange arm, 5-gripper shoe, 6-cylindrical shell, 7-dividing plate, 8-bearing, 9-support bar, 10-pore.
The specific embodiment
Below by specific embodiment, also by reference to the accompanying drawings the utility model is further illustrated.
Embodiment 1: a kind of U pipe gradient storage heater, as shown in Figure 1, Figure 2, Figure 5.This device comprises heat storage medium container, and heat storage medium container is horizontal cylindrical barrel 6, and cylindrical shell 6 is provided with tube sheet 2 for one end, the housing that side is all sealed in addition, and the both sides, below of cylindrical shell are respectively equipped with bearing 8.The end of cylindrical shell and tube sheet 2 junction sealings.The interior filling heat storage medium of cylindrical shell 6, heat exchanger tube takes the shape of the letter U and stretches into the heat transferring medium in cylindrical shell from cylindrical shell one end, and heat exchanger tube two ends all pass from the tube sheet of cylindrical shell one end.Every heat exchanger tube comprises through tube sheet 2 and with the two ends heat exchange of tube sheet seal welding the many U-shaped heat exchange arms 4 of being responsible for 1, being positioned at cylindrical shell, shunt by header 3 switchings with heat exchange supervisor 1 respectively at heat exchange arm 4 two ends, and heat exchange supervisor 1, header 3 and heat exchange arm 4 axis of same heat exchanger tube are positioned at same level.In cylindrical shell, be provided with from top to bottom many heat exchanger tubes, as shown in Figure 5, the header 3 of each heat exchanger tube is mutually aliging and is being arranged on a vertical curve.Cylindrical shell longitudinally center is provided with vertical dividing plate 7, and dividing plate inserts two of the capable heat exchanger tube of U and keeps straight between section, will be positioned at two heat exchange supervisors, two headers of cylindrical shell, the craspedodrome section of two heat exchange arms is separated into left and right two parts.
As shown in Figure 1, 2, 3,4 two upper covers of craspedodrome section of U-shaped heat exchange arm are welded with helical fin, and are provided with every a segment distance gripper shoe 5 that supports heat exchange arm 4, and heat exchange arm and gripper shoe junction helical fin have interruption.
Gripper shoe 5 structures as shown in Figure 4, gripper shoe for external diameter and cylindrical shell matched in clearance gripper shoe 5 on offer multirow pore 10, every line pipe centerline hole is in same level, every line pipe hole is symmetrical arranged in the left and right sides of gripper shoe.Gripper shoe is become to left and right two parts along vertical center devision, and along every line pipe hole horizontal center line, support printed line is cut into a plurality of support bars 9, the two-part support bar in left and right coordinates with two sections of keeping straight on of U-shaped heat exchange arm respectively.The heat exchange arm of each support bar and each heat exchanger tube is stacked alternately assembling, and the spot welding of adjacent supports bar is fixed and again formed whole left and right two parts gripper shoe and be welded and fixed respectively with dividing plate two sides.Under the support of gripper shoe, the heat exchange arm of many heat exchanger tubes forms the tube bank of matrix form, and under dividing plate and gripper shoe collaborative, be separated in by cylindrical shell along the heat exchanger tube heat transferring medium Heat Room that direction distributes that flows, form a plurality of accumulation of heats space with thermograde, improve heat exchange efficiency.
The manufacture process of this device is as follows:
A, making heat storage medium container, make the housing of a side opening and the tube sheet matching with open side;
B, make many heat exchanger tubes, every heat exchanger tube is produced as follows: make U-shaped heat exchange arm that many crooked process radius reduce gradually, be aligned to same level from outside to inside, each heat exchange arm two ends are welded on respectively on two headers, the opposite side welding heat exchange house steward of header, cover weldering helical fin on heat exchange arm, helical fin forms and is interrupted for installing with gripper shoe every fixed position;
C, choose some undersized in the steel plate of heat storage medium container section size as gripper shoe, the pore of multirow is established in the punching of gripper shoe middle part, pore aperture and heat exchange arm matched in clearance, every line pipe hole is divided into left and right two parts, corresponding and keep interval consistent with the both sides of the many U-shaped heat exchange arms section of keeping straight on respectively, and every line pipe hole is positioned at same level line;
D, along the vertical center line of gripper shoe, gripper shoe is cut into left and right two parts, and along the horizontal central line in the every line pipe of gripper shoe hole, carry out line cutting every gripper shoe is cut into a plurality of support bars, make two neighbouring support bar adjacent side there is respectively half pore of correspondence;
E, choose the dividing plate with heat storage medium container longitudinal center face height adaptation, insert two of the capable heat exchange arm of U and keep straight between section;
F, left and right, below two support bars are welded and fixed respectively to the bottom of wanting dividing plate both sides, the heat exchange of the heat exchanger tube of lower side is propped up in half pore that pipe clamp is set to supported underneath bar, then the support bar of inferior below be fastened on to the enterprising spot welding of supported underneath bar and be welded and fixed with dividing plate, with this sequence alternate, stack support bar and heat exchanger tube, and keep the simultaneously operating of dividing plate both sides, be formed with the heat exchange arm tube bank of gripper shoe support, baffle for separating;
G, heat exchange house steward through tube sheet and with tube sheet seal welding, the tube bank of heat exchange arm is sent into tube sheet outer rim and heat storage medium container casing open side sealing fastening from heat storage medium container casing open side.
Embodiment 2: a kind of U pipe gradient storage heater, as shown in Figure 6.The height of this device header 3 is greater than the height of heat exchange supervisor 1 and heat exchange arm 4, and the header 3 of adjacent heat exchange tubes staggers in the horizontal direction mutually, and is superimposed with each other in the vertical direction, heat exchanger tube is arranged tightr.
Claims (10)
1. a U manages gradient storage heater, comprise heat storage medium container and through the heat exchanger tube of heat storage medium container, circulation heat transferring medium in heat exchanger tube, it is characterized in that: described heat storage medium container is that a side is provided with the closed shell that tube sheet, all the other each side seals close, heat exchanger tube is U-shaped pipe, bending part is positioned at heat storage medium container, and heat exchanger tube two ends all pass and fix with Tube-sheet Welding sealing from tube sheet.
2. a kind of U according to claim 1 manages gradient storage heater, it is characterized in that: described heat exchanger tube two ends are the heat exchange house steward with Tube-sheet Welding, middle part is for being arranged on many U-shaped heat exchange arms in heat storage medium container, the corresponding many heat exchange arms of heat exchange house steward, heat exchange house steward changes docking with many corresponding heat exchange arms by header.
3. a kind of U pipe gradient storage heater according to claim 2, is characterized in that: the heat exchange arm of same heat exchanger tube is arranged in same level, and the crooked process radius of the heat exchange arm of arranging from outside to inside reduces gradually.
4. according to a kind of U pipe gradient storage heater described in claim 2 or 3, it is characterized in that: in described heat storage medium container, be arranged with from top to bottom many separate, mutual disconnected heat exchanger tubes.
5. a kind of U pipe gradient storage heater according to claim 4, is characterized in that: the height of header is greater than the height of heat exchange house steward and heat exchange arm, and the header of neighbouring heat exchanger tube staggers mutually along heat exchanger tube throughput direction.
6. a kind of U according to claim 4 manages gradient storage heater, it is characterized in that: the gripper shoe that is also provided with some support heat exchange arms in described heat storage medium container, gripper shoe outer rim and heat storage medium inner surface of container are adaptive, gripper shoe is provided with multirow pore, each pore of every a line is positioned at same level height, and each heat exchange arm corresponding pore gripper shoe passes.
7. a kind of U pipe gradient storage heater according to claim 6, is characterized in that: described gripper shoe forms a plurality of support bars along the centre-height line cutting in every line pipe hole, and support bar and heat exchange arm stack after assembling successively, and neighbouring support bar spot welding is fixed.
8. a kind of U pipe gradient storage heater according to claim 6, is characterized in that: the craspedodrome section overcoat weldering helical fin of described heat exchange arm forms finned tube, and helical fin leaves the interval for installing at heat exchange arm and gripper shoe link position.
9. according to a kind of U pipe gradient storage heater described in claim 1 or 2 or 3, it is characterized in that: in described heat storage medium container, U-shaped heat exchanger tube two keep straight between section, be provided with vertically, dividing plate longitudinally.
10. a kind of U according to claim 6 manages gradient storage heater, it is characterized in that: in described heat storage medium container, U-shaped heat exchanger tube two keep straight between section, be provided with vertically, dividing plate longitudinally, described dividing plate is separated into left and right two parts by each gripper shoe, and two parts gripper shoe and dividing plate are welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569677.8U CN203550706U (en) | 2013-09-16 | 2013-09-16 | Gradient heat accumulator with U-shaped tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569677.8U CN203550706U (en) | 2013-09-16 | 2013-09-16 | Gradient heat accumulator with U-shaped tubes |
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| Publication Number | Publication Date |
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| CN203550706U true CN203550706U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320569677.8U Expired - Lifetime CN203550706U (en) | 2013-09-16 | 2013-09-16 | Gradient heat accumulator with U-shaped tubes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215108A (en) * | 2014-09-06 | 2014-12-17 | 刘秋克 | Heat pump energy storage double-pipe heat exchanger |
| WO2015024518A1 (en) * | 2013-08-22 | 2015-02-26 | 上海工电能源科技有限公司 | Cylindrical gradient heat accumulator and manufacturing method thereof |
| CN104457361A (en) * | 2013-09-16 | 2015-03-25 | 上海工电能源科技有限公司 | U tube gradient heat storage device and method for manufacturing the same |
-
2013
- 2013-09-16 CN CN201320569677.8U patent/CN203550706U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015024518A1 (en) * | 2013-08-22 | 2015-02-26 | 上海工电能源科技有限公司 | Cylindrical gradient heat accumulator and manufacturing method thereof |
| CN104457361A (en) * | 2013-09-16 | 2015-03-25 | 上海工电能源科技有限公司 | U tube gradient heat storage device and method for manufacturing the same |
| CN104215108A (en) * | 2014-09-06 | 2014-12-17 | 刘秋克 | Heat pump energy storage double-pipe heat exchanger |
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Owner name: SHANGHAI GONGDIAN ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHENGZHOU GONGDIAN ENERGY TECHNOLOGY CO., LTD. Effective date: 20141117 |
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Free format text: CORRECT: ADDRESS; FROM: 311100 HANGZHOU, ZHEJIANG PROVINCE TO: 201203 PUDONG NEW AREA, SHANGHAI |
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Effective date of registration: 20141117 Address after: Guo Ningjing road 201203 Shanghai Zhangjiang hi tech park, Pudong Software Park No. 498 block 14 22301-1143 Patentee after: SHANGHAI GD ENERGY TECHNOLOGY Co.,Ltd. Address before: Hangzhou City, Zhejiang province 311100 Chang Road Yuhang Economic Development Zone No. 121 Patentee before: HANGZHOU GONGDIAN ENERGY TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20221230 Address after: No. 19, Gaoyou Road, Xuhui District, Shanghai 200031 Patentee after: Shanghai Alliance Investment Ltd. Address before: Block 22301-1143, building 14, Pudong Software Park, 498 guoningjing Road, Zhangjiang hi tech park, Shanghai, 201203 Patentee before: SHANGHAI GD ENERGY TECHNOLOGY Co.,Ltd. |
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