Solar heat utilization and storage device

Abstract

The utility model discloses a solar heat utilization heat storage device which comprises a heat storage tank body, a solar auxiliary heating assembly is arranged at the top of the heat storage tank body, a supporting frame is fixedly connected to the bottom of the heat storage tank body, and a heat insulation base is arranged at the lower end of the outer side of the heat storage tank body. Heat transfer loss is reduced through the heat buffer layer, the heat storage density is improved through the phase change heat storage unit, the structural stability is enhanced by combining the heat insulation base and the reinforcing rib plates, and the heat insulation base and the reinforcing rib plates are connected with the heat insulation top plate and the heat insulation bottom plate respectively. The problems that a traditional heat storage device is low in efficiency, large in heat loss and prone to structure deformation are effectively solved, and the device is suitable for building heating, industrial waste heat recovery and other scenes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to solar heat utilization technical field, concretely relates to a solar heat utilization heat storage device. BACKGROUND

[0002] The solar heat storage device is a kind of key equipment for collecting and storing solar heat for subsequent utilization.The heat storage device in prior art is insufficient in heat insulation performance, resulting in a large amount of heat loss during storage, especially in high-temperature environment, and efficiency is significantly reduced.Moreover, long-term thermal expansion or external environmental changes can easily cause deformation of the connection part between the heat storage tank and the base, affecting the service life of the device. SUMMARY

[0003] The utility model solves the technical problems of overcoming the defects of the prior art and providing a solar heat utilization heat storage device to solve the problems in the background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a solar heat utilization heat storage device, the heat storage tank body top is provided with solar heat collection component, the heat storage tank body bottom is fixedly connected with support frame, the heat storage tank body outside lower end is provided with heat insulation base, the bottom of support frame and the inside of heat insulation base two sides are fixedly connected with heat insulation top plate and heat insulation bottom plate respectively, heat insulation top plate and heat insulation bottom plate are fixedly connected with heat buffer layer, the bottom of heat insulation top plate and the top of heat insulation bottom plate are fixedly connected with heat conduction block and fixed block respectively, heat conduction block and fixed block are fixedly connected with phase change heat storage unit.

[0005] Preferably, the solar heat collection component includes a mounting bracket, the mounting bracket top is fixedly connected with a solar heat collection plate, the heat storage tank body inside is fixedly provided with a heat storage medium cavity, a temperature control system and a circulating pump respectively.

[0006] Preferably, the mounting bracket is fixedly connected to the top of the heat storage tank body.

[0007] Preferably, the solar heat collection plate, the heat storage medium cavity, the temperature control system and the circulating pump are connected by pipelines or circuits.

[0008] Preferably, the support frame is of an annular structure, and the support frame is slidingly connected inside the heat insulation base.

[0009] Preferably, the heat insulation base top is provided with a fixing bolt, and the heat insulation base two sides are symmetrically fixedly connected with reinforcing rib plates.

[0010] Preferably, the heat buffer layer is symmetrically provided with four, and is located at four corners between the heat insulation top plate and the heat insulation bottom plate.

[0011] Preferably, symmetrical fixing lugs are fixedly connected to both sides of the heat insulation base plate, and the heat insulation base plate and the fixing lugs are fixedly connected to the heat insulation base through bolts.

[0012] Compared with the prior art, the solar heat utilization heat storage device has the following beneficial effects:

[0013] The utility model discloses to the serious problem of heat loss of traditional device, through the multilayer heat insulation structure of heat insulation roof, heat insulation base plate and heat buffer layer, combine low thermal conductivity material (such as aerogel), effectively block the conduction of heat to the base, adopt the sliding connection of annular support frame and heat insulation base, can adaptive heat storage tank thermal expansion and cold shrink deformation, avoid the base cracking caused by stress concentration, and the device life is prolonged significantly, introduce phase change heat storage unit (such as paraffin) and temperature control system cooperate, utilize latent heat characteristics of phase change material and improve heat storage density, cooperate circulating pump dynamic regulation medium flow rate, match external heat load demand. Heat insulation base realizes quick installation through fixed bolt and reinforcing rib plate, and the modular structure reduces the maintenance difficulty, and the fixed lug ensures that the heat insulation base plate is closely connected, and the overall reliability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model, and in the drawings:

[0015] Figure 1 It is a kind of solar heat utilization heat storage device one side's axle side structure schematic view proposed by the utility model;

[0016] Figure 2 It is another side's axle side structure schematic view of a kind of solar heat utilization heat storage device proposed by the utility model;

[0017] Figure 3 It is the internal structure schematic view of a kind of solar heat utilization heat storage device proposed by the utility model;

[0018] Figure 4 It is the sectional structure schematic view of a kind of solar heat utilization heat storage device proposed by the utility model;

[0019] Figure 5 It is the A place enlarged structure schematic view of a kind of solar heat utilization heat storage device proposed by the utility model;

[0020] Figure 6 It is the heat buffer layer structure schematic view of a kind of solar heat utilization heat storage device proposed by the utility model;

[0021] In the figure: heat storage tank body 1, mounting bracket 2, solar heat collecting plate 3, heat storage medium cavity 4, temperature control system 5, circulating pump 6, support frame 7, heat insulation base 8, fixing bolt 9, reinforcing rib plate 10, heat insulation top plate 11, heat insulation bottom plate 12, heat buffer layer 13, heat conducting block 14, fixing block 15, phase change heat storage unit 16, fixing lug 17. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-6 The present application provides a technical solution: a solar heat utilization heat storage device, comprising a heat storage tank body 1, which improves the overall structural stability, and a solar heat collecting assembly is arranged at the top of the heat storage tank body 1 to realize efficient solar energy collection and heat energy conversion. The bottom of the heat storage tank body 1 is fixedly connected with a support frame 7, which supports the heat storage tank body and allows thermal expansion and cold contraction deformation to be self-adaptive. The lower end of the outer side of the heat storage tank body 1 is provided with a heat insulation base 8, which reduces heat conduction to the ground and enhances the deformation resistance of the base. The bottom of the support frame 7 and the inner side of the heat insulation base 8 are fixedly connected with a heat insulation top plate 11 and a heat insulation bottom plate 12 respectively, forming a multi-layer heat insulation barrier to reduce heat loss. The heat insulation top plate 11 and the heat insulation bottom plate 12 are fixedly connected with a heat buffer layer 13 therebetween, which is filled with aerogel or ceramic fiber to further block heat transfer. The bottom of the heat insulation top plate 11 and the top of the heat insulation bottom plate 12 are fixedly connected with a heat conducting block 14 and a fixing block 15 respectively, which ensures efficient heat transfer to the phase change heat storage unit. The heat conducting block 14 and the fixing block 15 are fixedly connected with a phase change heat storage unit 16 therebetween, which utilizes paraffin or sodium sulfate phase change material to realize high-density heat storage.

[0024] The utility model discloses, preferably, solar heat collecting assembly includes installation support 2, and it is convenient for solar heat collecting plate quick installation and maintenance to have solar heat collecting plate 3 at installation support 2 top fixedly connected, directly absorbs solar energy and converts into heat energy, and the heat storage tank body 1 inside is fixedly provided with heat storage medium cavity 4 respectively, stores water or molten salt medium to show heat form heat storage, temperature control system 5, real -time monitoring and dynamic adjustment heat release rate and circulating pump 6, drive heat storage medium circulation to satisfy external heat demand, and installation support 2 is fixedly connected to the top of heat storage tank body 1, ensures that heat collecting assembly and heat storage tank structure integration, and solar heat collecting plate 3, heat storage medium cavity 4, temperature control system 5 and circulating pump 6 all pass through pipeline or circuit connection between, realize the whole process collaborative control of heat collection, storage and release, and support frame 7 is annular structure, and evenly disperses thermal stress, avoids local deformation, and support frame 7 is located in the inside sliding connection of heat insulation base 8, and self -adaptation thermal expansion and contraction deformation, prolongs the life of device, and heat insulation base 8 top all is provided with fixed bolt 9, and quick fixed base and convenient to disassemble maintenance, and heat insulation base 8 both sides all are fixedly connected with the symmetrical reinforcing rib 10, and strengthen base structure strength, prevent deformation of long -term use, and heat buffer layer 13 are symmetrically provided with four, and are located at the four corners between heat insulation top plate 11 and heat insulation bottom plate 12 respectively, optimize heat insulation layer distribution, reduce four corners thermal bridge effect, and heat insulation bottom plate 12 both sides are fixedly connected with the symmetrical fixed lug plate 17, and through bolt connection ensures that heat insulation bottom plate and base closely cooperate, and heat insulation bottom plate 12 and fixed lug plate 17 are fixedly connected with heat insulation base 8 through bolt, like this can simplify installation process and improve maintenance convenience.

[0025] The working principle and use process of the utility model are as follows: when using, the heat insulation base 8 needs to be fixed on the ground through the fixing bolt 9 to ensure stability, then the mounting bracket 2 is welded and connected with the top of the heat storage tank body 1 and the solar heat collecting plate 3 is installed, which is connected with the heat storage medium cavity 4, circulating pump 6 and external heat exchange system through pipeline, the sensor of the temperature control system 5 is checked before starting to ensure that the heat storage medium cavity 4 is filled with water or molten salt as heat storage medium, the solar heat collecting plate 3 collects solar energy under the light condition and converts it into heat energy, the heat is transmitted to the heat storage medium in the heat storage medium cavity 4 through the pipeline, the temperature of the heat storage medium rises after absorbing heat, part of the heat is transmitted to the phase change heat storage unit 16 through the heat conducting block 14, the phase change heat storage unit 16 absorbs and stores latent heat by using the phase change characteristics of paraffin or sodium sulfate, the heat buffer layer 13 is filled between the heat insulation top plate 11 and the heat insulation bottom plate 12 to slow down the conduction of heat to the heat insulation base 8, the temperature control system 5 monitors the temperature change of the heat storage medium cavity 4 in real time and controls the circulation rate of the heat storage medium by adjusting the flow of the circulating pump 6, when the external system needs heat, the temperature control system 5 starts the circulating pump 6 to drive the heat storage medium to flow through the external heat exchanger to release the stored heat, the supporting frame 7 and the heat insulation base 8 adopt sliding connection, which can adapt to the thermal expansion and cold shrink deformation of the heat storage tank body 1 caused by temperature change, avoid stress concentration to cause structure damage, the reinforcing rib plate 10 and the fixed lug plate 17 on both sides of the heat insulation base 8 are connected through bolts to ensure the close fit between the heat insulation bottom plate 12 and the base, regular inspection is needed for the daily maintenance to check whether the fixing bolt 9 is loose, whether the reinforcing rib plate 10 is deformed or corroded, the surface dust of the solar heat collecting plate 3 is cleaned to maintain the heat collecting efficiency, the packaging integrity of the phase change heat storage unit 16 is checked to prevent the phase change material from leaking, at the same time, the material performance of the heat buffer layer 13 is monitored to prevent the heat buffer layer 13 from degrading, if necessary, aerogel or ceramic fiber is replaced to maintain the heat insulation effect, when long-term inactivity, the liquid medium in the heat storage medium cavity 4 needs to be emptied and the pipeline needs to be cleaned to prevent corrosion or blockage, before reusing, the temperature control system 5, the circulating pump 6 and the connection state of each part need to be detected comprehensively to ensure that the system runs safely and reliably.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A solar heat utilization heat storage device comprising a heat storage tank body (1), characterized in that: The solar heat collecting assembly is provided with a mounting bracket (2), and the mounting bracket (2) is fixedly connected with a solar heat collecting plate (3) at the top.

2. The heat storage device for solar thermal utilization according to claim 1, characterized in that: The mounting bracket (2) is fixedly connected to the top of the heat storage tank body (1).

3. The heat storage device for solar heat utilization according to claim 2, characterized in that: The solar heat collecting plate (3), the heat storage medium cavity (4), the temperature control system (5) and the circulating pump (6) are connected through pipelines or circuits.

4. The heat storage device for solar heat utilization according to claim 2, characterized in that: The support frame (7) is in the form of a ring, and is slidably connected to the inside of the heat insulation base (8).

5. The heat storage device for solar heat utilization according to claim 1, characterized in that: The heat insulation base (8) is provided with a fixing bolt (9) at the top, and the two sides of the heat insulation base (8) are fixedly connected with a reinforcing rib plate (10) in a symmetrical manner.

6. The heat storage device for solar heat utilization according to claim 1, characterized in that: The heat buffer layer (13) is provided with four symmetrical heat buffer layers (13) at the four corners between the heat insulation top plate (11) and the heat insulation bottom plate (12).

7. The heat storage device for solar thermal energy utilization according to claim 1, characterized in that: The two sides of the heat insulation bottom plate (12) are fixedly connected with a fixed lug plate (17) in a symmetrical manner, and the heat insulation bottom plate (12) and the fixed lug plate (17) are fixedly connected with the heat insulation base (8) through bolts.

8. The heat storage device for solar heat utilization according to claim 1, characterized in that: ​

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