CN214307660U - Fused salt storage tank - Google Patents

Fused salt storage tank Download PDF

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Publication number
CN214307660U
CN214307660U CN202120280789.6U CN202120280789U CN214307660U CN 214307660 U CN214307660 U CN 214307660U CN 202120280789 U CN202120280789 U CN 202120280789U CN 214307660 U CN214307660 U CN 214307660U
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China
Prior art keywords
tank
molten salt
liquid
ring plate
heat preservation
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CN202120280789.6U
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Chinese (zh)
Inventor
郗航
张瑞刚
刘乾
杨博
吴琼
谢小军
刘增博
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Xian Thermal Power Research Institute Co Ltd
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Xian Thermal Power Research Institute Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Abstract

The utility model discloses a fused salt storage tank, wherein a tank top plate is arranged at the top of a tank body; a preheating air inlet pipe is embedded in one side of the tank top plate, an air outlet pipe is arranged on the other side of the tank top plate, the air outlet pipe is connected with an air inlet end of the circulating pump through a pipeline, and an air outlet end of the circulating pump is connected with the preheating air inlet pipe through a pipeline; the outside of the tank body is provided with a heat preservation component. The utility model discloses can be abundant from the outside heat preservation to the jar body of realization to reduce the destruction to tank structure, increase tank structure's intensity, and under the condition of the energy can be saved, effectual guarantee to the temperature maintenance of fused salt, improved the stability of equipment operation.

Description

Fused salt storage tank
Technical Field
The utility model belongs to the technical field of the fused salt storage tank, concretely relates to fused salt storage tank.
Background
The solar power generation technology comprises photovoltaic power generation and photo-thermal power generation, wherein the photo-thermal power generation is to adjust the unstable influence of a power grid caused by unstable solar energy by adding a heat storage system, common heat storage systems include dual-tank heat storage systems and single-tank heat storage systems, both dual-tank heat storage systems and single-tank heat storage systems, the molten salt is used as a reliable medium, the lowest temperature of the molten salt is required to ensure that the molten salt is not solidified, otherwise, more energy is required for restarting, and the solidification of the molten salt can damage the molten salt storage tank, the heat preservation effect of the existing molten salt storage tank is poor, and partial devices are used for improving the heat preservation effect, the heating device is additionally arranged in the tank body, on one hand, the heating device is easy to damage due to the extension of the heating device, on the other hand, the structural strength of the tank body is reduced due to the additional heating device, and in addition, more energy is consumed due to the adoption of an external heat preservation device.
Therefore, it is necessary to provide a molten salt storage tank to solve the problems in the background art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough to among the above-mentioned prior art provides a fused salt storage tank, under the condition of the energy can be saved, the effectual temperature that has ensured to the fused salt keeps, has improved the stability of equipment operation.
The utility model adopts the following technical scheme:
a molten salt storage tank comprises a tank body, wherein a tank top plate is arranged at the top of the tank body; a preheating air inlet pipe is embedded in one side of the tank top plate, an air outlet pipe is arranged on the other side of the tank top plate, the air outlet pipe is connected with an air inlet end of the circulating pump through a pipeline, and an air outlet end of the circulating pump is connected with the preheating air inlet pipe through a pipeline; the outside of the tank body is provided with a heat preservation component.
Specifically, correspond on the jar roof and be provided with notes salt pipe and go out the salt pipe, go out and be provided with temperature sensor in the salt pipe, go out the salt pipe and stretch into the part of the jar body and seted up the bevel connection, the probe end of temperature sensor is placed to bevel connection department.
Further, the salt injection pipe is connected with the liquid collection cylinder through an L-shaped connecting pipe, the liquid outlet end of the liquid collection cylinder is connected with the intercepting cylinder, and liquid spraying cylinders are sleeved outside the liquid collection cylinder and the intercepting cylinder; the liquid spraying cylinder is also provided with a heat conductor.
Specifically, the heat preservation subassembly includes: a base; the supporting ring plate is connected between the base and the bottom of the tank body, so that a liquid storage space is formed among the bottom of the tank body, the base and the supporting ring plate; the structure cylinder is sleeved outside the tank body and fixed on the base; the first sealing ring plate is fixedly sealed at the top of the construction barrel, and a heat preservation space is formed among the first sealing ring plate, the construction barrel, the tank body, the base and the supporting ring plate.
Further, a heating rod is arranged in the liquid storage space, and heat preservation oil is stored in the liquid storage space; the liquid storage space is communicated with the heat preservation space through a pipeline, and one end of the pipeline positioned in the liquid storage space is connected with a suction pump; and when the temperature sensor detects that the temperature of the molten salt in the salt pipe is lower than a threshold value, the heating rod and the suction pump are started.
Furthermore, a first distance meter for measuring the liquid level of the heat preservation oil is arranged on the first sealing ring plate, and a second distance meter for measuring the liquid level of the molten salt is arranged on the tank top plate; the liquid level height of the heat preservation oil is 8-15 cm higher than that of the molten salt.
Furthermore, the base adopts the multiunit lifting piece to fix in the bottom of concrete foundation, and the cross section of concrete foundation is concave structure, and the top of concrete foundation is provided with the detachable baffle.
Further, the outside cover of a structure section of thick bamboo is equipped with a thermal-insulated section of thick bamboo, and a thermal-insulated section of thick bamboo is placed on the concrete ground, and a thermal-insulated top of a section of thick bamboo is located the below of first sealed crown plate, through second sealed crown plate sealing connection between a thermal-insulated section of thick bamboo and the structure section of thick bamboo for construct sealed vacuum space between a thermal-insulated section of thick bamboo, a structure section of thick bamboo, first sealed crown plate and the second sealed crown plate.
Furthermore, a plurality of groups of annular supporting plates are arranged in the sealed vacuum space at intervals.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model relates to a fused salt storage tank utilizes the circulating pump, preheats the air-supply line and goes out the tuber pipe and constitute the circulation and preheat the structure, can avoid fused salt storage tank to take place to freeze stifled accident when the start-up, has improved the stability of equipment operation, and not only energy-conserving temperature that can effectively ensure fused salt storage tank fused salt liquid again.
Furthermore, the part that goes out the salt pipe and stretch into the jar body has seted up the bevel connection, and the bevel connection department has placed temperature sensor's detection end, utilizes temperature sensor can monitor the play salt temperature of salt pipe department in real time.
Furthermore, the liquid collecting barrel and the liquid spraying barrel can be used for enabling the reflowing molten salt to be uniformly sprayed out, and the heat conductor is used for transmitting higher temperature in the tank body to the liquid spraying barrel, so that preheating is realized.
Further, the heat preservation subassembly that sets up can be followed the outside and realized the heat preservation to the jar body, reduces the destruction to jar body structure, improves the intensity and the life of the jar body.
Further, when the temperature sensor monitors that the temperature of the molten salt in the salt outlet pipe is lower than the threshold value during operation, the conveying action of the salt outlet pipe is stopped, the heating rod and the suction pump are started to conduct heat preservation on the tank body through heat preservation oil, the lowest temperature of the molten salt in the molten state is maintained, and the molten salt is guaranteed not to be solidified.
Furthermore, through the measurement of the first distance meter and the second distance meter, the liquid level height of the heat preservation oil is kept 8-15 cm higher than the liquid level height of the molten salt, and the temperature of the molten salt is effectively kept while energy is saved.
Further, carry out the lifting with the base through the lifting piece, avoid the base direct and concrete foundation contact, reduce calorific loss, prevent the influence of the moisture regain of concrete foundation to the base.
Further, the heat transfer can be further reduced by configuring the heat insulation cylinder, the configuration cylinder, the first sealing ring plate and the second sealing ring plate to be a sealed vacuum space.
Furthermore, a plurality of groups of annular supporting plates are arranged in the sealed vacuum space at intervals, so that the stability of the sealed vacuum space can be improved, the sealed vacuum space is separated, and the influence on other areas caused by the damage of the sealed vacuum space in a certain area can be reduced.
To sum up, the utility model discloses can be abundant from the outside heat preservation to the jar body of realization to reduce the destruction to tank structure, increase tank structure's intensity, and under the condition of the energy can be saved, effectual ensured to the temperature maintenance of fused salt, improved the stability of equipment operation.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the middle heat-insulating assembly of the present invention;
fig. 3 is a partially enlarged schematic view of fig. 2.
Wherein, 1, a tank body; 2. preheating an air inlet pipe; 3. a salt injection pipe; 4. a tank roof; 5. an air outlet pipe; 6. a salt outlet pipe; 7. a heat preservation assembly; 8. a circulation pump; 9. a temperature controller; 10. a first range finder; 11. a second rangefinder; 12. a concrete foundation; 13. a partition plate; 14. a connecting pipe; 15. a liquid collection cylinder; 16. an intercepting cylinder; 17. a liquid spraying cylinder; 18. a heat conductor; 19. a liquid ejection hole; 71. a support ring plate; 72. a base; 73. constructing a barrel; 74. a heat insulating cylinder; 75. a first seal ring plate; 76. a second seal ring plate; 77. lifting the block; 78. and a support plate.
Detailed Description
The technical solutions in the embodiments 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 some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "one side", "one end", "one side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Various structural schematics according to the disclosed embodiments of the invention are shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
The utility model provides a molten salt storage tank, which utilizes a circulating pump, a preheating air inlet pipe and an air outlet pipe to form a circulating preheating structure, so that the occurrence of freezing and blocking accidents of the molten salt storage tank during starting can be avoided, and the running stability of equipment is improved; in addition, when the temperature sensor monitors that the temperature of the molten salt in the salt pipe is lower than the threshold value during operation, the conveying action of the salt pipe is stopped, the heating rod and the suction pump are started to conduct heat preservation on the tank body through heat preservation oil, the lowest molten state temperature is maintained, the molten salt is guaranteed not to be solidified, the liquid level height of the heat preservation oil is kept higher than the liquid level height of the molten salt by 8-15 cm through measurement of the first distance meter and the second distance meter, energy is saved, and meanwhile the temperature of the molten salt is effectively guaranteed to be kept.
Referring to fig. 1, the present invention provides a molten salt storage tank, including: the air-conditioning tank comprises a tank body 1, a preheating air inlet pipe 2, an air outlet pipe 5, a heat insulation assembly 7 and a circulating pump 8. A tank top plate 4 is fixed at the top of the tank body 1; the preheating air inlet pipe 2 is embedded in one side of the tank top plate 4, the air outlet pipe 5 is arranged on the other side of the tank top plate 4, the air outlet pipe 5 is connected with the air inlet end of the circulating pump 8 through a pipeline, and the air outlet end of the circulating pump 8 is connected with the preheating air inlet pipe 2 through a pipeline; the heat preservation assembly 7 is arranged outside the tank body 1 and can adaptively adjust the heat preservation range according to the amount of the molten salt in the tank body 1.
Wherein, still be provided with respectively on the tank deck 4 and annotate salt pipe 3 and go out salt pipe 6, the part that goes out salt pipe 6 and stretch into jar body 1 has seted up the bevel connection for place temperature sensor's detection end, and temperature sensor is connected with the controller electricity, utilizes temperature sensor to monitor the fused salt temperature in salt pipe 6, can control the fused salt temperature in jar body 1.
Referring to fig. 2, the heat-insulating assembly 7 includes a base 72, a support ring plate 71, a construction cylinder 73, and a first seal ring plate 75.
The supporting ring plate 71 is connected between the base 72 and the bottom of the tank 1, so that a liquid storage space is formed among the bottom of the tank 1, the base 72 and the supporting ring plate 71 and used for storing heat preservation liquid.
The structure cylinder 73 is sleeved outside the tank body 1 and fixed on the base 72.
The first sealing ring plate 75 is fixedly sealed on the top of the construction cylinder 73, and a heat preservation space is formed among the first sealing ring plate 75, the construction cylinder 73, the tank body 1, the base 72 and the supporting ring plate 71.
In a preferred embodiment, the liquid storage space stores heat preservation oil, the heat preservation oil is heated by a heating rod to maintain the temperature, and the heating rod is electrically connected with the controller.
The liquid storage space is communicated with the heat preservation space through a pipe body, one end of the pipe body positioned in the liquid storage space is communicated with the suction pump, so that the amount of heat preservation oil in the heat preservation space is adjusted through the suction pump, and the suction pump is electrically connected with the controller;
and when the temperature sensor monitors that the temperature of the molten salt in the salt outlet pipe 6 is lower than the threshold value, the conveying action of the salt outlet pipe 6 is stopped, the heating rod and the suction pump are started to carry out heat preservation on the tank body 1 by using heat preservation oil, the lowest molten state temperature is maintained, and the molten salt is guaranteed not to be solidified.
As a preferred embodiment, a second distance meter 11 fixed on the top plate 4 of the tank is arranged in the tank body 1 and used for measuring the liquid level height of the molten salt;
a first distance meter 10 fixed on the first sealing ring plate 75 is arranged in the heat-insulating space and used for measuring the liquid level height of the heat-insulating oil, and the first distance meter and the second distance meter are both electrically connected with the controller;
and when the heat preservation oil is used for heat preservation, the liquid level height of the heat preservation oil is kept 8-15 cm higher than that of the molten salt, so that the energy is saved, and the temperature of the molten salt is effectively kept.
In this embodiment, the base 72 is fixed to the bottom of the concrete foundation 12 by a plurality of sets of lifting blocks 77, the cross section of the concrete foundation 12 is concave, and the top of the concrete foundation 12 is detachably fixed with the partition 13.
In addition, an insulating cylinder 74 is sleeved outside the construction cylinder 73, the insulating cylinder 74 is placed on the concrete foundation 12, the top of the insulating cylinder 74 is fixed below the first sealing ring plate 75, and the insulating cylinder 74 and the construction cylinder 73 are connected in a sealing manner by using a second sealing ring plate 76, so that a sealed vacuum space is formed among the insulating cylinder 74, the construction cylinder 73, the first sealing ring plate 75 and the second sealing ring plate 76.
And, adopt multiunit annular backup pad 78 to separate and support in the sealed vacuum space, improved the heat preservation effect.
Referring to fig. 3, in the present embodiment, the salt injection tube 3 is connected to the liquid collection barrel 15 by using an L-shaped connection tube 14, a liquid outlet end of the liquid collection barrel 15 is communicated with the intercepting barrel 16, a liquid spraying barrel 17 is sleeved outside the liquid collection barrel 15 and the intercepting barrel 16, and a plurality of liquid spraying holes 19 are distributed on the liquid spraying barrel 17;
the liquid spraying cylinder 17 is also provided with a heat conductor 18 extending into the intercepting cylinder 16.
The air inlet end of the circulating pump 8 is also embedded with a temperature controller 9, and the air inlet temperature of the circulating pump can be controlled through the temperature controller.
To sum up, the utility model discloses a molten salt storage tank, utilize circulating pump, preheat air-supply line and play tuber pipe to constitute circulation preheating structure, can avoid the molten salt storage tank to take place freezing stifled accident when starting, improved the stability of equipment operation; in addition, when the temperature sensor monitors that the temperature of the molten salt in the salt pipe is lower than the threshold value during operation, the conveying action of the salt pipe is stopped, the heating rod and the suction pump are started to conduct heat preservation on the tank body through heat preservation oil, the lowest molten state temperature is maintained, the molten salt is guaranteed not to be solidified, the liquid level height of the heat preservation oil is kept 8-15 cm higher than the liquid level height of the molten salt through measurement of the first distance meter and the second distance meter, energy is saved, and meanwhile the temperature of the molten salt is effectively guaranteed to be kept.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (9)

1. A molten salt storage tank is characterized by comprising a tank body (1), wherein a tank top plate (4) is arranged at the top of the tank body (1); a preheating air inlet pipe (2) is embedded into one side of the tank top plate (4), an air outlet pipe (5) is arranged on the other side of the tank top plate, the air outlet pipe (5) is connected with an air inlet end of a circulating pump (8) through a pipeline, and an air outlet end of the circulating pump (8) is connected with the preheating air inlet pipe (2) through a pipeline; the outside of the tank body (1) is provided with a heat preservation component (7).
2. The molten salt storage tank of claim 1, wherein a salt injection pipe (3) and a salt outlet pipe (6) are correspondingly arranged on the tank top plate (4), a temperature sensor is arranged in the salt outlet pipe (6), an inclined opening is formed in a part of the salt outlet pipe (6) extending into the tank body (1), and a detection end of the temperature sensor is placed at the inclined opening.
3. The molten salt storage tank as claimed in claim 2, characterized in that the salt injection pipe (3) is connected with the liquid collection barrel (15) by an L-shaped connecting pipe (14), the liquid outlet end of the liquid collection barrel (15) is connected with the intercepting barrel (16), and the liquid spraying barrels (17) are sleeved outside the liquid collection barrel (15) and the intercepting barrel (16); the liquid spraying cylinder (17) is also provided with a heat conductor (18).
4. The molten salt storage tank as claimed in claim 1, characterized in that the insulation assembly (7) comprises: a base (72); the supporting ring plate (71) is connected between the base (72) and the bottom of the tank body (1), so that a liquid storage space is formed among the bottom of the tank body (1), the base (72) and the supporting ring plate (71); the structure cylinder (73) is sleeved outside the tank body (1) and fixed on the base (72); the first sealing ring plate (75) is fixedly sealed at the top of the construction cylinder (73), and a heat preservation space is formed among the first sealing ring plate (75), the construction cylinder (73), the tank body (1), the base (72) and the supporting ring plate (71).
5. The molten salt storage tank of claim 4, wherein a heating rod is arranged in the liquid storage space, and heat preservation oil is stored in the liquid storage space; the liquid storage space is communicated with the heat preservation space through a pipeline, and one end of the pipeline positioned in the liquid storage space is connected with a suction pump; when the temperature sensor detects that the temperature of the molten salt in the salt pipe (6) is lower than a threshold value, the heating rod and the suction pump are started.
6. The molten salt storage tank as claimed in claim 4, characterized in that a first distance meter (10) for measuring the liquid level of the insulating oil is arranged on the first sealing ring plate (75), and a second distance meter (11) for measuring the liquid level of the molten salt is arranged on the tank roof plate (4); the liquid level height of the heat preservation oil is 8-15 cm higher than that of the molten salt.
7. The molten salt storage tank as claimed in claim 4, characterized in that the base (72) is fixed to the bottom of the concrete foundation (12) by means of a plurality of sets of lifting blocks (77), the cross section of the concrete foundation (12) is of a concave structure, and the top of the concrete foundation (12) is provided with a detachable partition plate (13).
8. The molten salt storage tank as claimed in claim 4, characterized in that an insulating cylinder (74) is sleeved outside the construction cylinder (73), the insulating cylinder (74) is placed on the concrete foundation (12), the top of the insulating cylinder (74) is located below the first sealing ring plate (75), and the insulating cylinder (74) and the construction cylinder (73) are in sealing connection through the second sealing ring plate (76), so that a sealed vacuum space is formed among the insulating cylinder (74), the construction cylinder (73), the first sealing ring plate (75) and the second sealing ring plate (76).
9. The molten salt storage tank as claimed in claim 8, characterized in that a plurality of sets of annular support plates (78) are provided spaced apart in the sealed vacuum space.
CN202120280789.6U 2021-02-01 2021-02-01 Fused salt storage tank Active CN214307660U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120280789.6U CN214307660U (en) 2021-02-01 2021-02-01 Fused salt storage tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120280789.6U CN214307660U (en) 2021-02-01 2021-02-01 Fused salt storage tank

Publications (1)

Publication Number Publication Date
CN214307660U true CN214307660U (en) 2021-09-28

Family

ID=77831925

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120280789.6U Active CN214307660U (en) 2021-02-01 2021-02-01 Fused salt storage tank

Country Status (1)

Country Link
CN (1) CN214307660U (en)

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