CN104457361A - U tube gradient heat storage device and method for manufacturing the same - Google Patents
U tube gradient heat storage device and method for manufacturing the same Download PDFInfo
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- CN104457361A CN104457361A CN201310418161.8A CN201310418161A CN104457361A CN 104457361 A CN104457361 A CN 104457361A CN 201310418161 A CN201310418161 A CN 201310418161A CN 104457361 A CN104457361 A CN 104457361A
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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 invention relates to a U tube gradient heat storage device and a method for manufacturing the same, and solves a series of problems of the existing tube box type heat storage device heat exchange tubes such as liquid phase retention, gas lock and low heat exchange efficiency. The U tube gradient heat storage device comprises a heat storage medium container and heat exchange tubes which pass through the heat storage medium container, wherein heat exchange medium circulates in the heat exchange tubes. The U tube gradient heat storage device is characterized in that: a tube plate is arranged on one side of the heat storage medium container, another sides of the heat storage medium container are closed sealed shells, the heat exchange tubes are U-shaped tubes, the bending parts of the heat exchange tubes are arranged in the heat storage medium container, and two ends of the heat exchange tubes pass through the tube plate and are welded, sealed and fixed with the tube plate. Cold shrinkage and thermal expansion of the heat exchange tubes is not limited by the heat storage medium container, the heat exchange tubes can be set as horizontal tubes, so as to prevent liquid phase retention and gas lock problems which are caused by bending of the heat exchange tubes, baffle plates and support plates are adopted to divide the heat storage medium container into a plurality of heat storage chambers, temperature gradient is formed in the heat storage medium container, and heat exchange efficiency is increased.
Description
Technical field
The present invention relates to a kind of heat-exchange apparatus, particularly relate to a kind of U pipe gradient storage heater and manufacture method thereof.
Background technology
Traditional box type storage heater, be exactly that heat transfer medium passes through in heat exchanger tube, heat storage medium is placed in the housing of box-shaped, and heat exchanger tube then 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 operating mode that when being applicable to low temperature, the straight heat exchanger tube amount of expanding with heat and contract with cold is little.
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, thus heat exchanger tube can not two ends simultaneously and welding box body, at least must pass freely through casing in one end; 2. heat exchanger tube will cause heat storage medium to leak from passing freely through casing lower than heat storage medium face, therefore heat exchanger tube needs are bent upwards and pass casing from 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 then trapped in bending two ends section in pipe and forms vent plug, is therefore an impediment to the transient flow zone of heat transfer medium; 3. heat exchanger tube free end is upwards folded into and passes freely through casing higher than heat storage medium face, single heat exchange tube is existing traversing section, the solid having again vertical section is arranged, causing in single case can not multilayer stringing, affects heat exchange efficiency, therefore cause the volume of whole regenerative apparatus and scale large.
Summary of the invention
The heat exchanger tube that the object of the invention is to overcome 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 to be bent upwards arranging import and export from higher than heat storage medium position, thus bring a series of problems such as liquid phase residual in heat exchanger tube, vent plug, heat exchange efficiency are low, there is provided a kind of U-shaped pipe that adopts from the U pipe gradient storage heater of one-sided turnover casing, and the manufacture method of this U pipe gradient storage heater.
The technical solution adopted for the present invention to solve the technical problems is: a kind of U pipe gradient storage heater, comprise heat storage medium container and the heat exchanger tube through heat storage medium container, circulation heat transferring medium in heat exchanger tube, described heat storage medium container is the closed shell that side is provided with 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 from tube sheet and seal with Tube-sheet Welding fixing.Heat exchanger tube is U-shaped turnover in heat storage medium container, two ends heat exchanger tube being passed in and out heat storage medium container simultaneously welded seal are 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, compared 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, avoid heat storage medium container and heat exchanger tube to expand with heat and contract with cold inconsistent problem, therefore, heat exchange pipeline can in being horizontally disposed with, avoid 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, the heat exchanger tube of multilayer can be set at horizontal planes different from top to bottom in heat storage medium container, improve heat exchange efficiency, reduce volume and the scale of regenerative apparatus entirety.
As preferably, described heat exchanger tube two ends are the heat transfer manifold with Tube-sheet Welding, middle part is for being arranged on many U-shaped heat exchange arms in heat storage medium container, and the corresponding many heat exchange arms of heat transfer manifold, heat transfer manifold is docked by header conversion with many corresponding heat exchange arms.The U section of heat exchanger tube is positioned at the bosom that heat exchange arm stretches into heat storage medium container.Heat transfer manifold connects header, and be connected multiple heat exchange arm through header current stabilization after shunting, 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 arranged from outside to inside reduces gradually.Ensure the flowing of heat transferring medium in every root heat exchange arm.
As preferably, in described heat storage medium container, be arranged with many separate, mutual disconnected heat exchanger tubes from top to bottom.The tube sheet seal welding of heat exchanger tube and heat storage medium container end face, heat exchanger tube is passed even if heat storage medium container place is positioned under heat storage medium liquid level also can not seepage, make every root 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 root heat exchanger tube is all the horizontal tube including heat exchange supervisor, header, heat exchange arm, circulation heat transferring medium in heat exchanger tube, and be not communicated with between each heat exchanger tube, the situation that this meeting of gas-liquid layering extreme influence storage heater thermograde so just can be avoided to set up occurs.Compared with traditional heat exchangers, the header of this device, also in heat storage medium container, is only heat transfer manifold instead of more heat exchange arm through tube sheet, decreases and needs passing through a little of welded seal.
As preferably, the height of header is greater than the height of heat transfer manifold 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 be formed certain overlapping by the vertical direction, heat exchange pipeline be arranged tightr.
As preferably, the gripper shoe of some support heat exchange arms is also provided with in described heat storage medium container, gripper shoe outer rim and heat storage medium inner surface of container adaptation, gripper shoe is provided with multirow pore, each pore of every a line is positioned at same level height, and the pore that each heat exchange arm is corresponding gripper shoe passes.Heat exchange branch diameter is little, and length is large, arranges gripper shoe heat exchanging arm and supports, avoid heat exchange arm to be out of shape, arrange a gripper shoe in heat storage medium container every one section, props up according to heat exchange the quantity that length of tube selects gripper shoe.
As preferably, the pore in gripper shoe is symmetrical arranged, and two straight part pipeline symmetries of U-shaped heat exchange arm are erected in the pore of gripper shoe symmetrically arranged both sides.
As preferably, described gripper shoe forms multiple support bar along the centre-height Linear cut in every line pipe hole, and after support bar and heat exchange arm stack assembling successively, neighbouring support bar spot welding is fixed.Gripper shoe adopts Linear cut to be divided into multiple horizontal strip, and be convenient to assemble with heat exchange arm, Multi-layer exchanging heat arm and support bar are stacked alternately assembling, adopt spot welding to retighten into one piece of gripper shoe between support bar.
As preferably, described heat exchange arm craspedodrome section overcoat weldering helical fin forms 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, between two craspedodrome sections of U-shaped heat exchanger tube, be provided with vertical, longitudinal dividing plate.The heat exchange medium temperature of flowing in two craspedodrome sections of U-shaped heat exchanger tube is different, adopts dividing plate to separate formation temperature gradient, improves heat exchange efficiency.
As other preferred, in described heat storage medium container, be provided with vertical, longitudinal dividing plate between two craspedodrome sections of U-shaped heat exchanger tube, each gripper shoe is separated into left and right two parts by described dividing plate, and two parts gripper shoe and dividing plate are welded and fixed.Dividing plate and gripper shoe collaborative under will be separated into Heat Room along heat exchanger tube heat transferring medium flowing directional spreding in cylindrical shell, form multiple accumulation of heat spaces with thermograde, improve heat exchange efficiency.
As preferably, described heat exchange supervisor and header can be bent to form for same pipeline.After heat exchange being responsible for end horizontal buckling 90 degree, the end after bending is header, then offers multiple intercommunicating pore at header sidewall 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, the housing making a side opening and the tube sheet matched with open side;
B, make many heat exchanger tubes, every root 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 two headers respectively, the opposite side welding heat transfer manifold of header, cover weldering helical fin on heat exchange arm, helical fin is formed to be interrupted every fixed position and is used for installing with gripper shoe;
C, choose some steel plates being dimensioned slightly smaller than heat storage medium container section size as gripper shoe, in the middle part of gripper shoe, the pore of multirow is established in punching, pore aperture and heat exchange arm matched in clearance, every line pipe hole be divided into left and right two parts, respectively and the both sides craspedodrome section of many U-shaped heat exchange arms corresponding and keep interval consistent, every line pipe hole is positioned at same level line;
D, along gripper shoe vertical center line, gripper shoe is cut into left and right two parts, and carry out Linear cut along the horizontal central line in gripper shoe every line pipe hole every block gripper shoe is cut into multiple support bar, make two neighbouring support bar adjacent side have half corresponding pore respectively;
E, choose the dividing plate with heat storage medium container longitudinal center face height adaptation, between the two craspedodrome sections inserting the capable heat exchange arm of U;
F, two support bars about bottom are welded and fixed the bottom of wanting dividing plate both sides respectively, the heat exchange of the heat exchanger tube of lower side being propped up pipe clamp is set in half pore of bottom support bar, then the support bar of secondary below is fastened on and bottom support bar carries out spot welding and is welded and fixed with dividing plate, support bar and heat exchanger tube is stacked with this sequence alternate, 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 transfer manifold through tube sheet and with tube sheet seal welding, by heat exchange arm tube bank from heat storage medium reservoir housing mouth side send into, tube sheet outer rim and the side seal of heat storage medium reservoir housing mouth fasten.
Heat exchanger tube of the present invention takes the shape of the letter U, pass in and out from heat storage medium container side, expanding with heat and contract with cold of heat exchanger tube has the free degree flexible in heat storage medium container, not by the restriction of heat storage medium container, heat exchanger tube is imported and exported and can be fixed with heat storage medium container welded seal, seepage can not be there is, make heat exchanger tube be arranged to horizontal tube, avoid heat exchanger tube and bend the liquid phase residual and vent plug problem that cause, heat transferring medium circulation is more smooth and easy; Can arrange the many three-dimensional heat exchanger tubes arranged in heat storage medium container, heat exchange efficiency is high; Adopt dividing plate and gripper shoe heat storage medium container to be separated into multiple regenerator, formation temperature gradient in heat storage medium container, improve heat exchange efficiency; After adopting segmentation, the gripper shoe heat exchanging arm of spot welding is formed and supports, and simplifies assembling process, ensures the job stability of storage heater entirety.
Accompanying drawing explanation
Fig. 1 is a kind of internal structure schematic diagram of the present invention.
Fig. 2 be Fig. 1 of the present invention overlook direction schematic diagram.
Fig. 3 is gripper shoe positional structure schematic diagram of the present invention.
Fig. 4 is the front schematic view of gripper shoe of the present invention cutting.
Fig. 5 is a kind of header structural representation of the present invention.
Fig. 6 is the second header structural representation of the present invention.
In figure: 1-heat exchange is responsible for, 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.
Detailed description of the invention
Below by specific embodiment, also the present invention is further described by reference to the accompanying drawings.
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, in addition the housing all closed of side, and the both sides, below of cylindrical shell are respectively equipped with bearing 8.End and tube sheet 2 junction of cylindrical shell seal.Filling heat storage medium in cylindrical shell 6, heat exchanger tube takes the shape of the letter U the heat transferring medium stretched into from cylindrical shell one end in cylindrical shell, and heat exchanger tube two ends all pass from the tube sheet of cylindrical shell one end.Every root heat exchanger tube comprises through tube sheet 2 and is responsible for 1 with the two ends heat exchange of tube sheet seal welding, is positioned at many U-shaped heat exchange arms 4 of cylindrical shell, heat exchange arm 4 two ends are responsible for 1 respectively and transfers shunted by header 3 with heat exchange, the heat exchange of same heat exchanger tube is responsible for 1, header 3 and heat exchange arm 4 axis are positioned at same level.Be provided with many heat exchanger tubes from top to bottom in cylindrical shell, as shown in Figure 5, the header 3 of each heat exchanger tube at mutual alignment on a vertical curve.The center of cylindrical shell longitudinal direction is provided with vertical dividing plate 7, and dividing plate inserts between two craspedodrome sections of U capable heat exchanger tube, by be positioned at two heat exchange supervisors of cylindrical shell, two headers, two heat exchange arms craspedodrome section be separated into left and right two parts.
As shown in Figure 1, 2, 3, in U-shaped heat exchange arm 4 two craspedodrome sections, cover is welded with helical fin, and is provided with the gripper shoe 5 supporting heat exchange arm 4 every a segment distance, and heat exchange arm and gripper shoe junction helical fin have interruption.
Gripper shoe 5 structure 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, and every line pipe hole is symmetrical arranged in the left and right sides of gripper shoe.Gripper shoe is become left and right two parts along vertical center devision, and along every line pipe hole horizontal center line, gripper shoe Linear cut is become multiple support bar 9, the two-part support bar in left and right coordinates with two craspedodrome sections 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 form overall 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 dividing plate and gripper shoe collaborative under will be separated into Heat Room along heat exchanger tube heat transferring medium flowing directional spreding in cylindrical shell, form multiple accumulation of heat spaces with thermograde, improve heat exchange efficiency.
The manufacture process of this device is as follows:
A, making heat storage medium container, the housing making a side opening and the tube sheet matched with open side;
B, make many heat exchanger tubes, every root 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 two headers respectively, the opposite side welding heat transfer manifold of header, cover weldering helical fin on heat exchange arm, helical fin is formed to be interrupted every fixed position and is used for installing with gripper shoe;
C, choose some steel plates being dimensioned slightly smaller than heat storage medium container section size as gripper shoe, in the middle part of gripper shoe, the pore of multirow is established in punching, pore aperture and heat exchange arm matched in clearance, every line pipe hole be divided into left and right two parts, respectively and the both sides craspedodrome section of many U-shaped heat exchange arms corresponding and keep interval consistent, every line pipe hole is positioned at same level line;
D, along gripper shoe vertical center line, gripper shoe is cut into left and right two parts, and carry out Linear cut along the horizontal central line in gripper shoe every line pipe hole every block gripper shoe is cut into multiple support bar, make two neighbouring support bar adjacent side have half corresponding pore respectively;
E, choose the dividing plate with heat storage medium container longitudinal center face height adaptation, between the two craspedodrome sections inserting the capable heat exchange arm of U;
F, two support bars about bottom are welded and fixed the bottom of wanting dividing plate both sides respectively, the heat exchange of the heat exchanger tube of lower side being propped up pipe clamp is set in half pore of bottom support bar, then the support bar of secondary below is fastened on and bottom support bar carries out spot welding and is welded and fixed with dividing plate, support bar and heat exchanger tube is stacked with this sequence alternate, 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 transfer manifold through tube sheet and with tube sheet seal welding, by heat exchange arm tube bank from heat storage medium reservoir housing mouth side send into, tube sheet outer rim and the side seal of heat storage medium reservoir housing mouth fasten.
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 (11)
1. a U pipe gradient storage heater, comprise heat storage medium container and the heat exchanger tube through heat storage medium container, circulation heat transferring medium in heat exchanger tube, it is characterized in that: described heat storage medium container is the closed shell that side is provided with 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 from tube sheet and seal with Tube-sheet Welding fixing.
2. a kind of U pipe gradient storage heater according to claim 1, it is characterized in that: described heat exchanger tube two ends are the heat transfer manifold 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 transfer manifold, heat transfer manifold is docked by header conversion with many corresponding heat exchange arms.
3. a kind of U pipe gradient storage heater according to claim 2, it is characterized in that: the heat exchange arm of same heat exchanger tube is arranged in same level, the crooked process radius of the heat exchange arm arranged from outside to inside reduces gradually.
4. a kind of U pipe gradient storage heater according to Claims 2 or 3, is characterized in that: be arranged with many separate, mutual disconnected heat exchanger tubes in described heat storage medium container from top to bottom.
5. a kind of U pipe gradient storage heater according to claim 4, it is characterized in that: the height of header is greater than the height of heat transfer manifold and heat exchange arm, the header of neighbouring heat exchanger tube staggers mutually along heat exchanger tube throughput direction.
6. a kind of U pipe gradient storage heater according to claim 4, it is characterized in that: the gripper shoe being 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 adaptation, gripper shoe is provided with multirow pore, each pore of every a line is positioned at same level height, and the pore that each heat exchange arm is corresponding gripper shoe passes.
7. a kind of U pipe gradient storage heater according to claim 6, it is characterized in that: described gripper shoe forms multiple support bar along the centre-height Linear cut in every line pipe hole, after support bar and heat exchange arm stack assembling successively, 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. a kind of U pipe gradient storage heater according to claim 1 or 2 or 3, is characterized in that: in described heat storage medium container, be provided with vertical, longitudinal dividing plate between two craspedodrome sections of U-shaped heat exchanger tube.
10. a kind of U pipe gradient storage heater according to claim 6, it is characterized in that: in described heat storage medium container, between two craspedodrome sections of U-shaped heat exchanger tube, be provided with vertical, longitudinal dividing plate, each gripper shoe is separated into left and right two parts by described dividing plate, and two parts gripper shoe and dividing plate are welded and fixed.
The manufacture method of 11. 1 kinds of any described U pipe gradient storage heaters of claim 1 to 10, is characterized in that: comprise the following steps:
A, making heat storage medium container, the housing making a side opening and the tube sheet matched with open side;
B, make many heat exchanger tubes, every root 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 two headers respectively, the opposite side welding heat transfer manifold of header, cover weldering helical fin on heat exchange arm, helical fin is formed to be interrupted every fixed position and is used for installing with gripper shoe;
C, choose some steel plates being dimensioned slightly smaller than heat storage medium container section size as gripper shoe, in the middle part of gripper shoe, the pore of multirow is established in punching, pore aperture and heat exchange arm matched in clearance, every line pipe hole be divided into left and right two parts, respectively and the both sides craspedodrome section of many U-shaped heat exchange arms corresponding and keep interval consistent, every line pipe hole is positioned at same level line;
D, along gripper shoe vertical center line, gripper shoe is cut into left and right two parts, and carry out Linear cut along the horizontal central line in gripper shoe every line pipe hole every block gripper shoe is cut into multiple support bar, make two neighbouring support bar adjacent side have half corresponding pore respectively;
E, choose the dividing plate with heat storage medium container longitudinal center face height adaptation, between the two craspedodrome sections inserting the capable heat exchange arm of U;
F, two support bars about bottom are welded and fixed the bottom of wanting dividing plate both sides respectively, the heat exchange of the heat exchanger tube of lower side being propped up pipe clamp is set in half pore of bottom support bar, then the support bar of secondary below is fastened on and bottom support bar carries out spot welding and is welded and fixed with dividing plate, support bar and heat exchanger tube is stacked with this sequence alternate, 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 transfer manifold through tube sheet and with tube sheet seal welding, by heat exchange arm tube bank from heat storage medium reservoir housing mouth side send into, tube sheet outer rim and the side seal of heat storage medium reservoir housing mouth fasten.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418161.8A CN104457361A (en) | 2013-09-16 | 2013-09-16 | U tube gradient heat storage device and method for manufacturing the same |
| 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 |
|---|---|---|---|
| CN201310418161.8A CN104457361A (en) | 2013-09-16 | 2013-09-16 | U tube gradient heat storage device and method for manufacturing the same |
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| CN104457361A true CN104457361A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310418161.8A Pending CN104457361A (en) | 2013-08-22 | 2013-09-16 | U tube gradient heat storage device and method for manufacturing the same |
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| Country | Link |
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| CN (1) | CN104457361A (en) |
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| CN111366016A (en) * | 2020-04-22 | 2020-07-03 | 河南龙成煤高效技术应用有限公司 | Heat exchanger |
| CN111921484A (en) * | 2020-09-15 | 2020-11-13 | 四川大学 | Metal hydride reactor filled with composite briquettes with different expanded graphite contents |
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| CN115614719A (en) * | 2022-10-17 | 2023-01-17 | 大冶斯瑞尔换热器有限公司 | Steam generator |
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