A cold and hot storage tank with pressure storage and its heat storage system

Abstract

The application provides a cold-heat storage pressure storage hot ball tank and a heat storage system thereof, which comprises a tank body and a support frame group, the tank body comprises a cold bin, a hot bin and upper and lower water inlet pipes, and further comprises a cold-heat storage assembly for simultaneously storing cold and hot water in one tank body, the cold-heat storage assembly comprises a cold-heat separation plate group, a water outlet inner pipe and a water outlet outer pipe, the cold-heat separation plate group comprises a plurality of groups of buoyancy rings, ring grooves, positioning sliding rods, ring plates, positioning sliding holes and limiting rings, the water outlet inner pipe is embedded in the limiting rings, the second sealing bearing is arranged between the water outlet inner pipe and the water outlet outer pipe, the first sealing bearing is arranged between the water outlet inner pipe and the tank body, the cold-heat separation plate group is fixedly connected with the water outlet inner pipe through the limiting rings, the plurality of groups of buoyancy rings are arranged in a sequentially sleeved manner from the center to the outside, and adjacent two groups of buoyancy rings are slidably connected through the ring grooves and the ring plates. The application solves the problem that the design of the heat storage ball tank can simultaneously store cold and hot water in the same tank body, and enhances the problem of simultaneously storing water at different temperatures.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal storage ball tanks, in particular to a cold and hot storage pressure ball tank and a thermal storage system thereof. BACKGROUND

[0002] Traditional thermal storage systems often face several key challenges: low energy conversion efficiency, limited storage capacity, and complex energy consumption management. For example, hot water tanks or steam boilers and other equipment will lose a lot of heat during the cooling process, which not only leads to energy waste, but also increases operating costs. In addition, for seasonal or intermittent energy demand changes, traditional systems often have difficulty in flexible response, especially in the case of simultaneous heating and cooling demand, how to balance energy supply becomes a difficult problem.

[0003] Among them, the cold and hot storage ball tank introduces the design of the isolation belt, that is, an isolation area from high temperature to low temperature is formed inside the thermal storage medium, which can more finely control the temperature distribution, thereby improving the thermal storage efficiency of the whole system. This design enables both high-temperature medium and low-temperature medium to be stored in the same container, effectively realizing the simultaneous storage and distribution of cold and hot resources.

[0004] In the prior art, cold and hot water cannot be stored in the same tank body during the use of the thermal storage ball tank. Therefore, we improve it and propose a cold and hot storage pressure ball tank and a thermal storage system thereof. SUMMARY

[0005] The purpose of the present application is to solve the problem that the current thermal storage ball tank design cannot store cold and hot water in the same tank body.

[0006] In order to achieve the above application purpose, the present application provides the following technical scheme:

[0007] A cold and hot storage pressure ball tank and a thermal storage system thereof are provided to improve the above problems.

[0008] The present application is as follows:

[0009] A cold and hot storage pressure ball tank, comprising a tank body and a support frame group, characterized in that the tank body comprises a cold bin, a hot bin and upper and lower water inlet pipes, and further comprising:

[0010] A cold and hot storage assembly for storing cold and hot water in the same tank body, the cold and hot storage assembly comprising a cold and hot separation plate group, an inner water outlet pipe and an outer water outlet pipe, the cold and hot separation plate group comprising a plurality of buoyancy rings, ring grooves, positioning slide rods, ring plates, positioning slide holes and limiting rings, the inner water outlet pipe being embedded in the limiting ring, a second sealing bearing being provided between the inner water outlet pipe and the outer water outlet pipe, and a first sealing bearing being provided between the inner water outlet pipe and the tank body.

[0011] As the preferred technical scheme of the present application, the cold-hot split plate group is fixedly connected with the water outlet inner pipe through the limiting ring, a plurality of buoyancy rings are arranged in turn in the center and are sleeved, adjacent two groups of buoyancy rings are slidably connected through the ring groove and the ring plate, helium or nitrogen is injected into the buoyancy ring, and the ring groove is fixedly connected between the positioning slide rod.

[0012] As the preferred technical scheme of the present application, the ring plate is wrapped at the outer end of the positioning slide rod through the positioning slide hole, the limiting ring and the outermost group of buoyancy rings are slidably connected through the ring groove and the ring plate, the water outlet inner pipe is connected with the limiting ring, the water outlet inner pipe is movably sealed on the equatorial line inner surface of the tank body through the first sealing bearing, and the water outlet inner pipe is movably connected with the water outlet outer pipe through the second sealing bearing.

[0013] As the preferred technical scheme of the present application, the auxiliary sealing assembly is used for assisting the sealing between the limiting ring and the inner wall of the tank body, the auxiliary sealing assembly comprises an inner circular groove embedded in the inner wall of the tank body and upper and lower oil pressure chambers embedded in the limiting ring, an upper sealing plate is slidably arranged in the upper oil pressure chamber, a lower sealing plate is slidably arranged in the lower oil pressure chamber, the upper sealing plate and the lower sealing plate are movably attached and arranged in an annular array in the limiting ring, a plurality of groups of connecting oil pipes are arranged in the upper and lower oil pressure chambers, and an oil pump is connected to the upper end of each group of connecting oil pipes.

[0014] As the preferred technical scheme of the present application, the inner circular groove is fixed to the central inner wall of the tank body, and the number of the inner circular grooves is two groups, and the two groups of inner circular grooves are movably connected with the two groups of upper and lower sealing plates respectively.

[0015] As the preferred technical scheme of the present application, the upper sealing plate is slidably connected in the upper oil pressure chamber, the lower sealing plate is slidably connected in the lower oil pressure chamber, the upper sealing plate and the lower sealing plate are in contact with each other in a fully unfolded state, and the upper and lower sealing plates are arranged in a group in an annular array in the limiting ring.

[0016] As the preferred technical scheme of the present application, the upper and lower oil pressure chambers are arranged in an annular array in the limiting ring, the width of the upper and lower oil pressure chambers is greater than the width of the upper and lower sealing plates, the upper and lower oil pressure chambers are connected with the plurality of groups of connecting oil pipes, the upper end of each group of connecting oil pipes is movably connected with the oil pump, and the oil pump is fixed to the outer end of the limiting ring.

[0017] A heat storage system of a cold-heat storage tank with pressure heat storage, characterized in that the heat storage system comprises a temperature sensor fixed on a buoyancy ring and a heating belt, the heating belt is wrapped around the upper end or the lower end of each group of buoyancy rings, the temperature sensor is in signal transmission connection with the heat storage system, and the heating belt is in electrically conductive connection with a heating controller.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] In the scheme of the present application:

[0020] 1. By setting the cold and hot dividing plate group, according to the different volume of the lower end and the upper end, whether to bend upwards or downwards is changed, and through the temperature sensor located outside each group of buoyancy plate and the heat storage system, when the temperature layer appears gradient, the temperature layer with large temperature difference is heated by the heating controller to open the heating belt of the layer, when the temperature reaches the predetermined temperature preservation value, the heating is immediately controlled to be closed, which avoids the large overall heating energy consumption and has the effect of energy saving;

[0021] 2. Through the stable connection of ring groove, positioning sliding rod, positioning ring hole and ring plate, the stable movement between the adjacent two groups of buoyancy rings can be ensured, and the sealing ring is embedded in the position of the ring plate between the multiple groups of buoyancy rings, which can well ensure the relative sealing of the upper and lower warehouses, and facilitate heating and measuring the energy storage temperature according to the movement between the buoyancy rings;

[0022] 3. By setting the auxiliary sealing assembly, when the cold and hot dividing plate group is fixed, the corresponding upper sealing plate and lower sealing plate are pushed out by the oil pump and positioned in the inner circular groove on the inside of the tank body, which facilitates the stable sealing;

[0023] 4. By arranging the heat storage system, cold water and hot water are injected into the upper and lower warehouse bodies respectively, the buoyancy ring itself senses the effect of buoyancy, and under the action of gravity of the upper end warehouse body, the multiple groups of buoyancy rings produce a ladder shape, the temperature sensor located on the buoyancy ring senses the change of the temperature of each layer of water body in real time, when the temperature loss is large, the corresponding heating controller is controlled to open the heating belt of the corresponding gradient belt to heat the water of the gradient, which facilitates the stable water temperature in the different warehouse bodies and slows down the temperature loss, and at the same time, the temperature of each layer of gradient can be monitored to reduce the influence of the too fast temperature loss caused by the simultaneous storage of cold and hot water bodies. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic diagram of a cold and hot storage pressure storage spherical tank and its heat storage system provided by the application;

[0025] Figure 2 It is a cross-sectional internal structure schematic diagram of a cold and hot storage pressure storage spherical tank and its heat storage system provided by the application;

[0026] Figure 3 It is a side cross-sectional front view of a cold and hot storage pressure storage spherical tank and its heat storage system provided by the application;

[0027] Figure 4 It is a cold and hot storage pressure storage spherical tank and its heat storage system provided by the application; Figure 2 Enlarged structure schematic diagram of A;

[0028] Figure 5This application provides a pressurized thermal storage spherical tank and its thermal storage system that can store both hot and cold water. Figure 3 A magnified structural diagram of B in the diagram;

[0029] Figure 6 An enlarged structural schematic diagram of a pressurized thermal storage spherical tank and its thermal storage system for both hot and cold storage provided in this application;

[0030] Figure 7 This application provides a pressurized thermal storage spherical tank and its thermal storage system that can store both hot and cold water. Figure 6 Enlarged schematic diagram of the left end of the side profile;

[0031] Figure 8 An exploded structural diagram of a pressurized thermal storage spherical tank for both hot and cold storage and its thermal storage system, including the limiting ring, upper sealing plate, and lower sealing plate.

[0032] Figure 9 This application provides a pressurized thermal storage spherical tank and its thermal storage system that can store both hot and cold water. Figure 3 A magnified structural diagram of C.

[0033] The image shows:

[0034] 1. Tank body; 2. Support frame assembly; 3. Hot and cold dividing plate assembly; 4. Buoyancy ring; 5. Ring groove; 6. Positioning slide rod; 7. Ring plate; 8. Positioning sliding hole; 9. Limiting ring; 10. First sealing bearing; 11. Inner water outlet pipe; 12. Outer water outlet pipe; 13. Second sealing bearing; 23. Inner circular groove; 24. Upper sealing plate; 25. Lower sealing plate; 26. Upper oil pressure chamber; 27. Lower oil pressure chamber; 28. Oil pump; 29. ​​Connecting oil pipe. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely to illustrate some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments, features, and technical solutions in the embodiments of the present invention can be combined with each other.

[0037] It should be noted that like reference numerals and letters refer to like items in the several views, and that no further definitions and explanations of defined items are required in subsequent drawings once an item is defined in one drawing.

[0038] As Figures 1-9 shown, the embodiment proposes a cold and hot storage tank with pressure storage and a heat storage system thereof, comprising a tank body 1 and a support frame group 2, the tank body 1 comprising a cold bin, a hot bin and upper and lower water inlet pipes, further comprising:

[0039] A cold and hot storage assembly for storing cold and hot water in one tank body 1, the cold and hot storage assembly comprising a cold and hot partition plate group 3, a water outlet inner pipe 11 and a water outlet outer pipe 12, the cold and hot partition plate group 3 comprising a plurality of buoyancy rings 4, ring grooves 5, positioning sliding rods 6, ring plates 7, positioning sliding holes 8 and limiting rings 9, the water outlet inner pipe 11 being embedded in the limiting ring 9, a second sealing bearing 13 being arranged between the water outlet inner pipe 11 and the water outlet outer pipe 12, and a first sealing bearing 10 being arranged between the water outlet inner pipe 11 and the tank body 1;

[0040] The cold and hot partition plate group 3 is fixedly connected with the water outlet inner pipe 11 through the limiting ring 9, the plurality of buoyancy rings 4 are arranged in a nested manner from the center to the outside, adjacent two buoyancy rings 4 are slidably connected through the ring grooves 5 and the ring plates 7, helium or nitrogen is injected into the buoyancy rings 4, and the ring grooves 5 are fixedly connected with the positioning sliding rods 6.

[0041] The ring plates 7 are wrapped around the outer ends of the positioning sliding rods 6 through the positioning sliding holes 8, the limiting ring 9 and the outermost buoyancy ring 4 are slidably connected through the ring grooves 5 and the ring plates 7, the water outlet inner pipe 11 is connected with the limiting ring 9 in a penetrating manner, the water outlet inner pipe 11 is sealingly movably arranged on the equatorial line inner surface of the tank body 1 through the first sealing bearing 10, and the water outlet inner pipe 11 is movably connected with the water outlet outer pipe 12 through the second sealing bearing 13.

[0042] In use, different volumes of water are injected into the cold bin and the hot bin respectively, the cold and hot partition plate group 3 located in the middle changes whether to bend upwards or downwards according to the different volumes of the lower end and the upper end, and is associated with the heat storage system through the temperature sensors located outside each buoyancy plate, when a temperature gradient appears in the temperature layer, the temperature layer with a larger temperature difference is heated through the heating controller to open the heating belt of the layer, and when the temperature reaches a predetermined heat preservation value, the heating is immediately controlled to be closed, thereby avoiding excessive overall heating energy consumption which is not conducive to the concept of environmental protection and energy saving.

[0043] The water outlet inner pipe 11 and the limiting ring 9 are connected through the first sealing bearing 10, which can ensure that the water in the tank body 1 is in a sealed state with the tank body 1, and the water outlet inner pipe 11 and the water outlet outer pipe 12 are connected and controlled through the second sealing bearing 13, which can ensure stable water supply to the cold bin or the hot bin.

[0044] The stable connection of the ring groove 5, the positioning slide rod 6, the positioning ring 22 hole and the ring plate 7 can ensure the stable movement between the adjacent two groups of buoyancy rings 4, and the sealing ring embedded in the position of the ring plate 7 between the groups of buoyancy rings 4 can well ensure the relative sealing of the upper and lower tanks, and facilitate the heating and measurement of the energy storage temperature according to the movement between the groups of buoyancy rings 4.

[0045] The buoyancy ring 4 has a certain thickness, which can well ensure the relative temperature balance of the upper and lower tanks by the internal inert gas, and has a good heat insulation effect.

[0046] The auxiliary sealing assembly includes an inner circular groove 23 embedded in the inner wall of the tank body 1 and an upper oil pressure tank 26 and a lower oil pressure tank 27 embedded in the limiting ring 9, the upper sealing plate 24 slides in the upper oil pressure tank 26, the lower sealing plate 25 slides in the lower oil pressure tank 27, the upper sealing plate 24 and the lower sealing plate 25 are movably attached along the annular array arrangement in the limiting ring 9, and a plurality of connecting oil pipes 29 are arranged in the upper oil pressure tank 26 and the lower oil pressure tank 27.

[0047] The inner circular groove 23 is fixed to the central inner wall of the tank body 1, and the number of the inner circular groove 23 is two, and the two groups of inner circular grooves 23 are movably connected with the two groups of upper sealing plates 24 and lower sealing plates 25 respectively, the upper sealing plate 24 is slidably connected in the upper oil pressure tank 26, the lower sealing plate 25 is slidably connected in the lower oil pressure tank 27, the upper sealing plate 24 and the lower sealing plate 25 are in contact with each other in the fully expanded state, the upper sealing plate 24 and the lower sealing plate 25 are arranged in the limiting ring 9 in a group annular array, the upper oil pressure tank 26 and the lower oil pressure tank 27 are arranged in the limiting ring 9 in a staggered annular array, the width of the upper oil pressure tank 26 and the lower oil pressure tank 27 is greater than the width of the upper sealing plate 24 and the lower sealing plate 25, the upper oil pressure tank 26 and the lower oil pressure tank 27 are connected with the plurality of connecting oil pipes 29, the upper end of each connecting oil pipe 29 is movably connected with the oil pump 28, and the oil pump 28 is fixed to the outer end of the limiting ring 9.

[0048] When the cold and hot dividing plate group 3 is located at the equatorial line position of the tank body 1, the oil pump 28 injects hydraulic oil into the connecting oil pipe 29, the hydraulic oil pushes the upper sealing plate 24 and the lower sealing plate 25 in the upper oil pressure tank 26 and the lower oil pressure tank 27 to push out, in the process of pushing out, the outer end parts of the upper sealing plate 24 and the lower sealing plate 25 are in close contact with each other, and are inserted into the inner circular groove 23 on the inner side of the tank body 1, realizing stable sealing and avoiding the mixing of the upper and lower tank bodies.

[0049] A kind of hot and cold storage's heat storage system of heat storage ball tank with pressure, heat storage system includes temperature sensor and heating belt fixed on buoyancy ring 4, heating belt is wrapped in the upper end or lower end of each group of buoyancy ring 4 simultaneously, temperature sensor is connected with heat storage system signal transmission, heating belt is electrically connected with heating controller.

[0050] By injecting cold water and hot water in upper and lower bin body respectively, by buoyancy ring 4 itself sensing the action of buoyancy, and under the action of gravity of upper end bin body, multiple groups of buoyancy ring 4 generate ladder, by temperature sensor on buoyancy ring 4 real-time sensing the temperature change of each layer water body, when temperature dissipates greatly, by controlling corresponding heating controller to open the heating belt of corresponding gradient belt, the water of this gradient is heated, it is convenient to keep the temperature of water in different bin stable, temperature dissipates slowly, simultaneously, temperature monitoring can be carried out to each layer gradient, reduce the influence of temperature dissipates too fast due to cold and hot water storage simultaneously.

[0051] The above examples are only used to illustrate the present application and not limit the technical solutions described in the present application, although the present application has been described in detail with reference to the above-described embodiments, the present application is not limited to the above specific embodiments, therefore any modification or equivalent replacement of the present application, and all technical solutions and improvements without departing from the spirit and scope of the present application, are all covered in the scope of claims of the present application.

Claims

1. A cold and hot storage pressure storage ball tank, comprising a tank body (1) and a support frame group (2), characterized in that, The tank body (1) includes cold bin, hot bin and upper and lower water inlet pipes, and further comprises: The cold and hot storage assembly is used for storing cold and hot water in one tank body (1) at the same time, and comprises a cold and hot partition plate group (3), a water outlet inner pipe (11) and a water outlet outer pipe (12). The cold and hot partition plate group (3) comprises a plurality of groups of buoyancy rings (4), ring grooves (5), positioning sliding rods (6), ring plates (7), positioning sliding holes (8) and limiting rings (9). The water outlet inner pipe (11) is embedded in the limiting ring (9). The water outlet inner pipe (11) and the water outlet outer pipe (12) are provided with a second sealing bearing (13) therebetween. The water outlet inner pipe (11) and the tank body (1) are provided with a first sealing bearing (10) therebetween. The cold and hot partition plate group (3) is fixedly connected with the water outlet inner pipe (11) through the limiting ring (9). A plurality of groups of the buoyancy rings (4) are arranged in turn around the center outward. Adjacent two groups of the buoyancy rings (4) are slidably connected through the ring groove (5) and the ring plate (7). The buoyancy ring (4) is injected with helium or nitrogen. The ring groove (5) is fixedly connected with the positioning sliding rod (6).

2. A combined hot and cold thermal storage tank under pressure according to claim 1, characterized in that, The ring plate (7) is wrapped around the outer end of the positioning sliding rod (6) through the positioning sliding hole (8). The limiting ring (9) and the outermost group of the buoyancy rings (4) are slidably connected through the ring groove (5) and the ring plate (7). The water outlet inner pipe (11) is connected with the limiting ring (9) through penetration. The water outlet inner pipe (11) is sealingly movably arranged in the equatorial line inner surface of the tank body (1) through the first sealing bearing (10). The water outlet inner pipe (11) and the water outlet outer pipe (12) are movably connected through the second sealing bearing (13).

3. A combined hot and cold thermal storage tank under pressure according to claim 2, characterized in that, Further comprising: An auxiliary sealing assembly is used for assisting the limiting ring (9) and the inner wall of the tank body (1) to be sealed. The auxiliary sealing assembly comprises an inner circular groove (23) embedded in the inner wall of the tank body (1) and an upper oil pressure bin (26) and a lower oil pressure bin (27) embedded in the limiting ring (9). An upper sealing plate (24) is slidably arranged in the upper oil pressure bin (26). A lower sealing plate (25) is slidably arranged in the lower oil pressure bin (27). The upper sealing plate (24) and the lower sealing plate (25) are movably attached and arranged in an annular array along the limiting ring (9). A plurality of groups of connecting oil pipes (29) are arranged in the upper oil pressure bin (26) and the lower oil pressure bin (27). The upper end of each group of the connecting oil pipes (29) is connected with an oil pump (28).

4. A combined hot and cold thermal storage tank under pressure according to claim 3, characterized in that, The inner circular groove (23) is fixedly arranged on the central inner wall of the tank body (1). The number of the inner circular grooves (23) is two. Two groups of the inner circular grooves (23) are movably connected with two groups of the upper sealing plates (24) and the lower sealing plates (25) respectively.

5. A combined hot and cold thermal storage tank under pressure according to claim 4, characterized in that, The upper sealing plate (24) is slidably connected in the upper oil pressure bin (26). The lower sealing plate (25) is slidably connected in the lower oil pressure bin (27). The upper sealing plate (24) and the lower sealing plate (25) are in contact with each other in a fully unfolded state. The upper sealing plate (24) and the lower sealing plate (25) are arranged in a group annular array in the limiting ring (9).

6. A combined hot and cold thermal storage tank under pressure according to claim 5, characterized in that, The upper oil pressure bin (26) and the lower oil pressure bin (27) stagger annular array in the limiting ring (9), the width of the upper oil pressure bin (26) and the lower oil pressure bin (27) is greater than the width of the upper sealing plate (24) and the lower sealing plate (25), the upper oil pressure bin (26) and the lower oil pressure bin (27) are connected with the multiple groups of connecting oil pipes (29) penetratingly, the upper end of each group of the connecting oil pipes (29) is movably connected with the oil pump (28), and the oil pump (28) is fixed on the outer end of the limiting ring (9).

7. A cold heat and pressure storage heat tank of a heat storage system characterized by, The cold and hot storage tank under pressure includes the temperature sensor and the heating belt fixed on the buoyancy ring (4), the heating belt is wrapped on the upper end or the lower end of each group of the buoyancy ring (4), the temperature sensor is in signal transmission connection with the heat storage system, and the heating belt is in electric connection with the heating controller.

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