CN212361971U - Novel single-tank high-temperature energy storage steam generator - Google Patents
Novel single-tank high-temperature energy storage steam generator Download PDFInfo
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- CN212361971U CN212361971U CN202021738615.1U CN202021738615U CN212361971U CN 212361971 U CN212361971 U CN 212361971U CN 202021738615 U CN202021738615 U CN 202021738615U CN 212361971 U CN212361971 U CN 212361971U
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Abstract
The utility model discloses a novel single-tank high-temperature energy storage steam generator, which belongs to the technical field of industrial steam generators and comprises a molten salt tank, a heating device and a heat exchange coil; the heat exchange coil comprises a spiral pipe, a water injection pipeline and a steam discharge pipeline; the spiral pipe is coiled and fixed on the tank body; on one hand, the molten salt is only used as an energy storage material, an electric heating rod is arranged in the molten salt tank, and the material can be heated in the molten salt tank again after being solidified; on the other hand, the fused salt is not used as a heat transfer medium, a pipeline needs to be arranged between the traditional fused salt furnace and the steam generator, and the high-temperature fused salt needs to enter the steam generator through the pipeline, so that the problem of material solidification and blockage in the pipeline when the fused salt is used as the heat transfer medium is solved; in addition, rivers directly produce steam through the heat transfer of solenoid and jar external wall, simple structure has avoided putting heat transfer coil built-in at jar internal fused salt to the safety risk that heat transfer coil welding point corrodes and lead to simultaneously.
Description
Technical Field
The utility model belongs to the technical field of industrial steam generator technique and specifically relates to a novel single jar high temperature energy storage steam generator is related to.
Background
Steam is widely applied to civil and industrial fields such as textile, chemical industry, drying, disinfection, cleaning and the like, the traditional small-sized coal steam boiler is gradually forced to be eliminated along with the higher and higher environmental protection requirement, the cost of the current electric steam boiler and natural gas steam boiler is higher, and the cost is extremely high mainly in energy consumption, so that the use cost of steam of a user can be greatly reduced by utilizing low-price valley electricity to store heat at night to generate steam;
the method is one of mainstream technologies for generating steam by utilizing high-temperature molten salt heat storage, and the molten salt of the conventional molten salt energy storage system is an energy storage material and a heat transfer medium, so that the method is suitable for a large-scale system, once the system is started, the system can run all the time, the molten salt is required to be kept in a liquid state, and the molten salt is prevented from being solidified in a pipeline or a molten salt tank;
however, for some medium and small-sized systems, many application scenes are discontinuous operation, sometimes the operation is performed according to seasons, and if energy is consumed, the molten salt melting state is kept all the time, energy is wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel single-tank high-temperature energy storage steam generator, which takes the fused salt as the energy storage material, integrates a heating device and a heat exchange coil pipe in a tank body, has high integration level and high safety, can be started and stopped as required, does not need to worry about the fused salt solidification and blockage of a pipeline, can be heated and melted again after the material in the fused salt tank is solidified, and meets the flexible application requirement of a medium-small high-temperature energy storage steam generation system;
in order to solve the technical problems of large energy consumption and poor applicability of a steam generator in the application of some small and medium-sized systems in the prior art, the utility model provides a novel single-tank high-temperature energy storage steam generator, which comprises a molten salt tank, a heating device and a heat exchange coil;
the molten salt tank comprises a tank body and a plurality of support legs; the top end of the tank body is provided with a feeding port, the periphery of the feeding port is provided with a plurality of heating holes, and a plurality of support legs are arranged at the bottom end of the tank body and support the molten salt tank at an installation station;
the heating device comprises a plurality of electric heating rods, the electric heating rods are respectively inserted into the heating holes, and the electric heating rods are connected with an external power supply through cables;
the heat exchange coil comprises a spiral pipe, a water injection pipeline and a steam discharge pipeline; the spiral pipe is coiled and fixed on the tank body, the water injection pipeline is connected to the lower end of the spiral pipe in a penetrating manner, and the steam discharge pipeline is connected to the upper end of the spiral pipe in a penetrating manner.
Preferably, the utility model provides a novel single-tank high-temperature energy storage steam generator, in order to increase the heat exchange area, wherein, the cross section of the spiral pipe is composed of a chord edge and an arc, and the chord edge is tightly attached to the outer side wall of the tank body; the spiral band-shaped structure formed by the chord edges is tightly attached to the outer side wall of the tank body, compared with a round pipe wound on the outer side wall of the tank body, the heat exchange area is obviously increased, high-temperature fused salt in the inner cavity of the tank body transfers heat energy to liquid water in the inner cavity of the spiral pipe through the side wall of the tank body, the liquid water is instantly evaporated to form high-temperature steam, and the structural reasonability is better.
Furthermore, the utility model provides a novel single-tank high-temperature energy storage steam generator, considering that the temperature difference still exists between the upper end and the lower end in the tank body in the actual use process, the temperature of the bottom of the tank body is lower than that of the top under the general condition, in order to make the structural design more reasonable, wherein, the thread pitch of the spiral pipe is increased from top to bottom; borrow this structure to suitably reduce the heat exchange area of jar body bottom, reduce heat conversion rate, set up comparatively intensive spiral pipe in the jar body upper end of high temperature, increase heat exchange area, suitably increase heat conversion rate to this comes the temperature of balanced jar body inner chamber upper and lower extreme, alleviates upper end high temperature creep phenomenon, extension equipment life.
Preferably, the utility model provides a novel single-tank high-temperature energy storage steam generator, also consider that there is the difference in temperature at the upper and lower end in the jar body in the in-service use process, the temperature of jar body bottom is less than the temperature of top under the general condition, for making structural design more reasonable, wherein, the spiral pipe and from bottom to top direction, from being fixed in the jar body lateral wall gradually turns into to bury underground in the jar body lateral wall; through this setting, the spiral pipe that jar body hypomere lateral wall was located to the dish is little with jar body area of contact, can suitably less thermal conversion efficiency, and the spiral pipe that jar body upper segment lateral wall was located to the dish buries underground gradually in jar body lateral wall, and this contact area who has just showing and has increased jar body lateral wall and spiral pipe to this heat conversion rate that increases high temperature zone also can improve structural design rationality, extension equipment life.
Preferably, the utility model provides a novel single-tank high-temperature energy storage steam generator, the application skillfully applies mature prior art to improve the heat conversion efficiency, wherein, the side wall of the tank body is composed of a helical bellows, and the helical bellows is fully paved in the helical groove of the helical bellows; this application is different with the mode of the single increase heat exchange area of tradition, adopts helical bellows as the lateral wall structure of the jar body ingeniously, and the solenoid spreads along the helicla flute fully, and the solenoid just closely laminates in the cell wall of helicla flute along jar radial interior terminal surface promptly, has increased heat exchange area, improves steam output efficiency.
Furthermore, the utility model provides a novel single-tank high-temperature energy storage steam generator, in order to improve the heat conversion efficiency and reduce the heat energy dissipation of the spiral tube, wherein the spiral tube is kept flush with the outer side wall of the tank body along the radial outer end surface of the tank body; different with traditional curved heat exchange coil structure, circular-arc heat exchange coil has increased the heat radiating area of solenoid, and this application has reduced the heat radiating area of solenoid, is about to the outer terminal surface of solenoid set up in flushing with jar external wall, and the area of contact of minimize solenoid and outside has reduced heat radiating area, and more heat energy can be preserved in the solenoid inner chamber and be used as the liquid water of evaporation, improves steam output efficiency.
Further, the utility model provides a novel single jar high temperature energy storage steam generator considers the internal upper and lower extreme of jar to have the difference in temperature in the in-service use process equally, and the temperature of jar body bottom will be less than the temperature at top under the general condition, for making structural design more reasonable, wherein, helical bellows's pitch and from top to bottom direction increase.
Further, the utility model provides a novel single jar high temperature energy storage steam generator, wherein, still includes the shell body, the shell body cladding in the jar body the shell body with load the heat preservation between the jar body.
Further, the utility model provides a novel single jar high temperature energy storage steam generator considers that there is the difference in temperature at the internal upper and lower extreme of jar in the in-service use process, and the temperature of jar body bottom will be less than the temperature at top under the general condition, and is more reasonable for making structural design, wherein, still includes tank bottoms heating plate, tank bottoms heating plate install in jar internal chamber, and install in the bottom of the jar body, external power source is connected to tank bottoms heating plate cable.
Compared with the prior art, the novel single-tank high-temperature energy storage steam generator has the following advantages; on one hand, the molten salt is only used as an energy storage material, an electric heating rod is arranged in the molten salt tank, and the material can be heated in the molten salt tank again after being solidified; on the other hand, the fused salt is not used as a heat transfer medium, a pipeline needs to be arranged between the traditional fused salt furnace and the steam generator, and the high-temperature fused salt needs to enter the steam generator through the pipeline, so that the problem of material solidification and blockage in the pipeline when the fused salt is used as the heat transfer medium is solved; in addition, rivers directly produce steam through the heat transfer of solenoid and jar external wall, simple structure has avoided putting heat transfer coil built-in at jar internal fused salt to the safety risk that heat transfer coil welding point corrodes and lead to simultaneously.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a novel single-tank high-temperature energy storage steam generator of the present invention;
FIG. 2 is a schematic structural view of the novel single-tank high-temperature energy storage steam generator with the outer shell and the heat insulation layer removed in the first embodiment of the invention;
fig. 3 is an exploded view of a first embodiment of a novel single-tank high-temperature energy storage steam generator according to the present invention;
fig. 4 is a schematic cross-sectional view of a spiral tube in a first embodiment of the novel single-tank high-temperature energy storage steam generator of the present invention;
FIG. 5 is a schematic structural view of the novel single-tank high-temperature energy storage steam generator with the outer shell and the heat insulation layer removed in the second embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a spiral tube in a second embodiment of the novel single-tank high-temperature energy storage steam generator of the present invention;
fig. 7 is an exploded view of a third embodiment of a novel single-tank high-temperature energy storage steam generator according to the present invention;
fig. 8 is a schematic diagram of a tank structure of a third embodiment of the novel single-tank high-temperature energy storage steam generator of the present invention;
fig. 9 is a schematic view of a spiral tube structure in a third embodiment of the novel single-tank high-temperature energy storage steam generator of the present invention.
Wherein: 1. a molten salt tank; 2. a heating device; 3. a heat exchange coil; 4. an outer housing; 5. a tank body; 6. a support leg; 7. a material injection port; 8. heating the hole; 9. an electrical heating rod; 10. the tank bottom is provided with a heating plate; 11. a solenoid; 12. a water injection pipeline; 13. a steam discharge conduit; 14. a heat-insulating layer; 15. a helical bellows; 16. a helical groove; 17. a chord edge; 18. a circular arc.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention;
it should be noted that, in the description of the present invention, it should be noted that the terms "front", "back", "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a novel single-tank high-temperature energy storage steam generator, which includes a molten salt tank 1, a heating device 2, a heat exchange coil 3, and an outer shell 4;
the molten salt tank 1 comprises a tank body 5 and a plurality of support legs 6; a feeding port 7 is formed in the top end of the tank body 5, a plurality of heating holes 8 are formed in the periphery of the feeding port 7, and a plurality of support legs 6 are mounted at the bottom end of the tank body 5 and support the molten salt tank 1 at a mounting station;
the heating device 2 comprises a plurality of electric heating rods 9 and a tank bottom heating plate 10; the electric heating rods 9 are respectively inserted into the heating holes 8, and the electric heating rods 9 are connected with an external power supply through cables; the tank bottom heating plate 10 is arranged in the inner cavity of the tank body 5 and at the bottom of the tank body 5, and the tank bottom heating plate 10 is connected with an external power supply through a cable;
the heat exchange coil 3 comprises a spiral pipe 11, a water injection pipe 12 and a steam discharge pipe 13; the spiral pipe 11 is fixed to the tank 5 in a coiled manner, the water injection pipe 12 is connected to the lower end of the spiral pipe 11 in a penetrating manner, and the steam discharge pipe 13 is connected to the upper end of the spiral pipe 11 in a penetrating manner; the section of the spiral tube 11 consists of a chord edge 17 and an arc 18, the chord edge 17 is tightly attached to the outer side wall of the tank body 5, and the pitch of the spiral tube 11 is increased from top to bottom;
the outer shell 4 is coated on the tank body 5, and an insulating layer 14 is filled between the outer shell 4 and the tank body 5.
The working process and principle are as follows: when the electricity is supplied at the valley night, an external water source of the water injection pipeline 12 is started, the electric heating rod 9 and the tank bottom heating plate 10 are started, the material filled in the inner cavity of the tank body 5 is heated, so that the material becomes a high-temperature molten salt state, the external water source continuously fills water into the water injection pipeline 12, when the water passes through the spiral pipe 11, the high temperature of the molten salt is conducted to liquid water in the inner cavity of the spiral pipe 11 through the side wall of the tank body 5 and the spiral pipe 11, and the liquid water is quickly evaporated to form steam which is discharged through the steam discharge pipeline 13; the electric heating rod 9 and the tank bottom heating plate 10 are closed in the peak electricity time period, the tank body 5 is utilized to absorb the heat of the internal energy storage molten salt and then is vaporized to generate steam, on one hand, the molten salt is only used as an energy storage material, the electric heating rod 9 is arranged in the molten salt tank 1, and the material can be heated in the molten salt tank 1 again after being solidified; on the other hand, the fused salt is not used as a heat transfer medium, a pipeline needs to be arranged between the traditional fused salt furnace and the steam generator, and the high-temperature fused salt needs to enter the steam generator through the pipeline, so that the problem of material solidification and blockage in the pipeline when the fused salt is used as the heat transfer medium is solved; in addition, rivers directly produce steam through the heat transfer of solenoid 11 and jar body 5 lateral wall, simple structure has avoided putting heat transfer coil 3 built-in jar body 5 fused salt to the safety risk that heat transfer coil 3 welding point corrodes and lead to simultaneously.
Example 2
As shown in fig. 5 and 6, the present embodiment provides a novel single-tank high-temperature energy-storage steam generator, which includes a molten salt tank 1, a heating device 2, a heat exchange coil 3 and an outer shell 4;
the molten salt tank 1 comprises a tank body 5 and a plurality of support legs 6; a feeding port 7 is formed in the top end of the tank body 5, a plurality of heating holes 8 are formed in the periphery of the feeding port 7, and a plurality of support legs 6 are mounted at the bottom end of the tank body 5 and support the molten salt tank 1 at a mounting station;
the heating device 2 comprises a plurality of electric heating rods 9 and a tank bottom heating plate 10; the electric heating rods 9 are respectively inserted into the heating holes 8, and the electric heating rods 9 are connected with an external power supply through cables; the tank bottom heating plate 10 is arranged in the inner cavity of the tank body 5 and at the bottom of the tank body 5, and the tank bottom heating plate 10 is connected with an external power supply through a cable;
the heat exchange coil 3 comprises a spiral pipe 11, a water injection pipe 12 and a steam discharge pipe 13; the spiral pipe 11 is fixed to the tank 5 in a coiled manner, the water injection pipe 12 is connected to the lower end of the spiral pipe 11 in a penetrating manner, and the steam discharge pipe 13 is connected to the upper end of the spiral pipe 11 in a penetrating manner; the spiral-shaped pipe 11 is gradually changed from being fixed on the outer side wall of the tank body 5 to being embedded in the outer side wall of the tank body 5 from the bottom to the top;
the outer shell 4 is coated on the tank body 5, and an insulating layer 14 is filled between the outer shell 4 and the tank body 5.
The working process and principle are the same, and are not described herein.
Example 3
As shown in fig. 7 to 9, the present embodiment provides a novel single-tank high-temperature energy storage steam generator, which includes a molten salt tank 1, a heating device 2, a heat exchange coil 3, and an outer shell 4;
the molten salt tank 1 comprises a tank body 5 and a plurality of support legs 6; a feeding port 7 is formed in the top end of the tank body 5, a plurality of heating holes 8 are formed in the periphery of the feeding port 7, and a plurality of support legs 6 are mounted at the bottom end of the tank body 5 and support the molten salt tank 1 at a mounting station; wherein, the side wall of the tank body 5 is composed of a spiral corrugated pipe 15;
the heating device 2 comprises a plurality of electric heating rods 9 and a tank bottom heating plate 10; the electric heating rods 9 are respectively inserted into the heating holes 8, and the electric heating rods 9 are connected with an external power supply through cables; the tank bottom heating plate 10 is arranged in the inner cavity of the tank body 5 and at the bottom of the tank body 5, and the tank bottom heating plate 10 is connected with an external power supply through a cable;
the heat exchange coil 3 comprises a spiral pipe 11, a water injection pipe 12 and a steam discharge pipe 13; the spiral pipe 11 is fixed to the tank 5 in a coiled manner, the water injection pipe 12 is connected to the lower end of the spiral pipe 11 in a penetrating manner, and the steam discharge pipe 13 is connected to the upper end of the spiral pipe 11 in a penetrating manner; wherein the helical tube 11 is fully paved in the helical groove 16 of the helical bellows 15; meanwhile, the spiral pipe 11 is kept flush with the outer side wall of the tank body 5 along the outer end surface in the radial direction of the tank body 5;
as a preferable technical solution of this embodiment, the pitch of the helical bellows 15 increases from top to bottom;
the outer shell 4 is coated on the tank body 5, and an insulating layer 14 is filled between the outer shell 4 and the tank body 5.
The working process and principle are the same, and are not described herein.
The details of the present invention are well known to those skilled in the art.
Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (9)
1. A novel single-tank high-temperature energy storage steam generator is characterized by comprising a molten salt tank, a heating device and a heat exchange coil;
the molten salt tank comprises a tank body and a plurality of support legs; the top end of the tank body is provided with a feeding port, the periphery of the feeding port is provided with a plurality of heating holes, and a plurality of support legs are arranged at the bottom end of the tank body and support the molten salt tank at an installation station;
the heating device comprises a plurality of electric heating rods, the electric heating rods are respectively inserted into the heating holes, and the electric heating rods are connected with an external power supply through cables;
the heat exchange coil comprises a spiral pipe, a water injection pipeline and a steam discharge pipeline; the spiral pipe is coiled and fixed on the tank body, the water injection pipeline is connected to the lower end of the spiral pipe in a penetrating manner, and the steam discharge pipeline is connected to the upper end of the spiral pipe in a penetrating manner.
2. The novel single-tank high-temperature energy storage steam generator of claim 1, wherein the cross section of the spiral tube is composed of a chord edge and a circular arc, and the chord edge is tightly attached to the outer side wall of the tank body.
3. The new single-tank high temperature energy storage steam generator of claim 2, wherein the pitch of the spiral tube increases from top to bottom.
4. The novel single-tank high-temperature energy storage steam generator according to claim 1, wherein the spiral pipe gradually changes from being fixed on the outer side wall of the tank body to being buried in the outer side wall of the tank body from the bottom to the top direction.
5. The novel single-tank high-temperature energy storage steam generator according to claim 1, characterized in that the side wall of the tank body is formed by a spiral corrugated pipe, and the spiral pipe is fully paved in the spiral groove of the spiral corrugated pipe.
6. The novel single-tank high-temperature energy storage steam generator of claim 5, wherein the spiral tube is flush with the outer side wall of the tank body along the outer end surface in the radial direction of the tank body.
7. The novel single-tank high-temperature energy storage steam generator of claim 5, wherein the pitch of the helical bellows increases from top to bottom.
8. The novel single-tank high-temperature energy storage steam generator according to any one of claims 1 to 7, further comprising an outer shell, wherein the outer shell is wrapped on the tank body, and an insulating layer is filled between the outer shell and the tank body.
9. The novel single-tank high-temperature energy storage steam generator according to any one of claims 1 to 7, further comprising a tank bottom heating plate, wherein the tank bottom heating plate is mounted in the inner cavity of the tank body and at the bottom of the tank body, and the tank bottom heating plate is connected with an external power supply through a cable.
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| CN202021738615.1U CN212361971U (en) | 2020-08-19 | 2020-08-19 | Novel single-tank high-temperature energy storage steam generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696655A (en) * | 2021-02-03 | 2021-04-23 | 重庆卓旺科技有限公司 | Steam gas storage device for electric steam generating device |
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2020
- 2020-08-19 CN CN202021738615.1U patent/CN212361971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696655A (en) * | 2021-02-03 | 2021-04-23 | 重庆卓旺科技有限公司 | Steam gas storage device for electric steam generating device |
| CN112696655B (en) * | 2021-02-03 | 2022-11-22 | 重庆卓旺科技有限公司 | Steam gas storage device for electric steam generating device |
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