A thermocline heat storage device for liquid heat storage

Abstract

The present invention discloses an inclined temperature layer heat storage device for liquid heat storage, which relates to the field of heat storage devices, and solves the problem that it is difficult to ensure the stable internal liquid circulation and the temperature at the position of the inclined temperature layer in the existing inclined temperature layer heat storage device for liquid heat storage during use, affecting the heat storage and transportation efficiency. It includes a base, a conveying mechanism and a control mechanism. A heat storage tank is fixedly connected to the base. The control mechanism includes a control frame and a control board. An upper through hole and a lower through hole are opened in the control frame. The present invention conveys the liquid through the conveying mechanism, and controls the lifting of the control board through the control mechanism, so as to block the upper through hole and the lower through hole and then drive the control frame to lift synchronously, achieving the purpose of actively sucking the liquid into the heat storage tank. At the same time, the liquid can also be directly conveyed into the heat storage tank through the liquid pressure, and the positions of the control frame and the control board are adjusted during the conveying process to achieve liquid separation without affecting the liquid conveyance.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal storage devices, and particularly to an inclined temperature layer thermal storage device for liquid heat storage. Background Art

[0002] Heat storage technology is of great significance for discontinuous energy applications such as industrial waste heat and renewable energy. Compared with the traditional heat storage system with a double-body structure of high temperature and low temperature, the single-body heat storage system adopting the inclined temperature layer principle has the advantage of lower cost. To ensure the inlet temperature of the heat-using equipment, measures need to be taken to suppress the mixing and natural convection of high-temperature liquid and low-temperature liquid in the heat storage system.

[0003] The invention patent with the publication number CN106288903B discloses an inclined temperature layer thermal storage device for liquid heat storage, including a variable-frequency motor 1, a hot fluid inlet 2, a hot fluid inlet valve 3, a heat insulation layer 4, a heat storage tank 5, a screw rod 6, a heat insulation plate 7, a cold fluid outlet valve 8, a cold fluid outlet 9, a cold fluid inlet 10, a cold fluid inlet valve 11, a screw rod bearing 12, a heat insulation plate sealing ring 13, a guide rod sealing ring 14, a guide rod 15, a speed reducer 16, a hot fluid outlet valve 17, and a hot fluid outlet 18. The heat insulation plate 7 is driven by the screw rod 6 to move up and down, thereby driving the liquid to flow in and out of the heat storage tank 5. This way of completely separating the heat storage tank by the heat insulation plate will not generate an inclined temperature layer in the heat storage tank, and the liquid exchange on both sides of the heat insulation plate cannot flow. At this time, the heat storage tank is equivalent to a positive-displacement suction pump. If the screw rod is not started and only the pressure of the liquid in the inlet and outlet pipes is used, the device cannot operate normally. The operation mode of the device is single. Once a power failure or motor damage occurs, the liquid in the heat storage tank cannot be transported by its own pressure, resulting in the equipment that needs heating or cooling being unable to utilize the liquid in the heat storage tank in time, causing consequences such as equipment damage. Summary of the Invention

[0004] The purpose of the present invention is to provide an inclined temperature layer thermal storage device for liquid heat storage that is convenient to improve the diversity of the inclined temperature layer separation state and liquid transportation method, so as to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: An inclined temperature layer heat storage device for liquid heat storage, comprising a base, a conveying mechanism and a control mechanism. A heat storage tank is fixedly connected to the base. The conveying mechanism is installed on the heat storage tank and is used for conveying liquid. The control mechanism includes a control box installed in the heat storage tank. A sliding cavity is formed in the control box. A control plate is slidably connected in the sliding cavity along the vertical direction. An upper through hole and a lower through hole are formed in the control box. The upper through hole is located above the control plate, and the lower through hole is located below the control plate, and is used to control the lifting of the control plate, so as to block the upper through hole and the lower through hole and then drive the control box to lift synchronously, achieving the purpose of actively sucking the liquid into the heat storage tank. At the same time, the liquid can also be directly conveyed into the heat storage tank by liquid pressure, and the positions of the control box and the control plate are adjusted during the conveying process to achieve liquid separation without affecting the liquid conveyance, facilitating the improvement of the diversity of the inclined temperature layer separation state and the liquid conveyance method.

[0006] Preferably, the control mechanism further includes first springs fixedly installed on the upper and lower sides of the control plate. The two groups of first springs are respectively fixedly connected to the inner wall of the control box. A plurality of communication holes are formed in the control plate. A plurality of first sealing blocks capable of being inserted and sealed with the upper through hole are fixedly connected to the upper side of the control plate. A plurality of second sealing blocks capable of being inserted and sealed with the lower through hole are fixedly connected to the lower side of the control plate. A lifting member for controlling the lifting state of the control plate is provided in the heat storage tank, facilitating the control of the lifting of the control plate, so as to block the upper through hole and the lower through hole and then drive the control box to lift synchronously, achieving the purpose of actively sucking the liquid into the heat storage tank. At the same time, the liquid can also be directly conveyed into the heat storage tank by liquid pressure, and the positions of the control box and the control plate are adjusted during the conveying process to achieve liquid separation without affecting the liquid conveyance.

[0007] Preferably, the conveying mechanism includes a first water inlet pipe and a first drain pipe connected to the upper end of the heat storage tank in a communicating manner. A second water inlet pipe and a second drain pipe are connected to the lower end of the heat storage tank in a communicating manner, facilitating the conveyance of liquid.

[0008] Preferably, the lifting member includes a driving motor fixedly installed on the base. The output end of the driving motor is coaxially and fixedly connected with a driving shaft. The driving shaft penetrates the bottom of the heat storage tank, the control frame and the control board, and is movably sleeved on the inner walls of the control frame and the control board. The driving shaft is rotatably connected to the heat storage tank. A plurality of guiding grooves are formed in the heat storage tank. A guiding block fixedly connected to the outer wall of the control frame is slidably connected to the inner wall of the guiding groove in the vertical direction. The control board is provided with a driving member for controlling the lifting of the control board when the driving shaft rotates, which is convenient for controlling the lifting state of the control board.

[0009] Preferably, the driving member includes a driving block installed on the control board. A sliding groove is formed in the control board. The driving block is slidably connected to the inner wall of the sliding groove in the horizontal direction. A threaded groove is formed in the outer wall of the driving shaft. One end of the driving block is slidably connected to the inner wall of the threaded groove. A tension spring fixedly connected to the sliding groove is fixedly connected to the end of the driving block away from the threaded groove. The control board is provided with a control member for controlling the sliding state of the driving block, which is convenient for controlling the lifting of the control board when the driving shaft rotates.

[0010] Preferably, the control member includes an arc-shaped plate installed on the control board. An arc-shaped groove is formed in the control board. The arc-shaped plate is slidably connected to the inner wall of the arc-shaped groove. The arc-shaped groove is communicated with the sliding groove. One end of the driving block close to the tension spring is slidably attached to the side surface of the arc-shaped plate. A groove capable of slidably fitting with one end of the driving block is formed in the middle of the side surface of the arc-shaped plate. The control board is provided with a rotating member for driving the arc-shaped plate to rotate, which is convenient for controlling the sliding state of the driving block.

[0011] Preferably, the rotating member includes a rotating ring rotatably connected to the control board. The driving shaft penetrates the rotating ring and is movably sleeved on the inner wall of the rotating ring. A plurality of limiting grooves are formed in the outer wall of the driving shaft. A limiting block fixedly connected to the inner wall of the rotating ring is slidably connected to the limiting groove in the vertical direction. Elastic ropes fixedly connected to the arc-shaped groove are fixedly connected to both ends of the arc-shaped plate. The rotating ring is provided with a friction member for increasing the frictional driving force on the arc-shaped plate, which is convenient for driving the arc-shaped plate to rotate.

[0012] Preferably, the friction member includes a plurality of helical teeth blocks installed on the rotating ring. A lifting groove is formed in the rotating ring for the helical teeth blocks to slide in the vertical direction. A second spring fixedly connected to the lifting groove is fixedly connected to the upper side of the helical teeth block. A plurality of triangular grooves are formed in the side surface of the arc-shaped plate, which is convenient for increasing the frictional driving force on the arc-shaped plate.

[0013] Preferably, control valves are provided on the first water inlet pipe, the first drain pipe, the second water inlet pipe, and the second drain pipe, facilitating the control and adjustment of the liquid flow direction.

[0014] Preferably, there are two sets of the control members, symmetrically distributed on the upper and lower sides of the control board, facilitating more stable movement and contact of the driving block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The present invention provides an inclined thermocline heat storage device for liquid heat storage, which solves the problem that it is difficult to ensure the stable internal liquid circulation and the temperature of the inclined thermocline position in the existing inclined thermocline heat storage device for liquid heat storage during use, affecting the heat storage and transportation efficiency. The liquid is transported through the transportation mechanism, and the control board is controlled to lift through the control mechanism, so as to block the upper through hole and the lower through hole and then drive the control frame to lift synchronously, achieving the purpose of actively sucking the liquid into the heat storage tank. At the same time, the liquid can also be directly transported into the heat storage tank through the liquid pressure, and the position of the control frame and the control board can be adjusted during the transportation process, realizing liquid separation without affecting the liquid transportation.

[0017] 2. The present invention provides an inclined thermocline heat storage device for liquid heat storage. The device has a simple structure, convenient operation, and comprehensive functions. It can ensure the interconnection between hot and cold liquids to generate an inclined thermocline while reducing the liquid flow rate in the inclined thermocline area, ensuring the temperature separation of hot and cold liquids. At the same time, it can control the transportation of the fluid in the heat storage tank through the driving motor, and can also automatically add and discharge the fluid in the heat storage tank only relying on the water pressure in the water inlet pipe without using the driving motor, making the use more stable and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the partial structure of the transportation mechanism of the present invention;

[0020] Figure 3 is a schematic diagram of the partial structure of the control mechanism of the present invention;

[0021] Figure 4 is Figure 3 the enlarged view of area A in

[0022] Figure 5 is an exploded view of the partial structure of the control mechanism of the present invention;

[0023] Figure 6 is a schematic diagram of the partial structure of the control member of the present invention;

[0024] Figure 7 isFigure 6 Enlarged view of area B;

[0025] Figure 8 Schematic diagram of the partial structure of the driving part of the present invention;

[0026] Figure 9 is Figure 8 Enlarged view of area C.

[0027] In the figure: 1 - base; 2 - heat storage tank; 3 - conveying mechanism; 4 - control mechanism; 5 - control box; 6 - sliding cavity; 7 - control board; 8 - upper through hole; 9 - lower through hole; 10 - first spring; 11 - communication hole; 12 - first sealing block; 13 - second sealing block; 14 - lifting member; 15 - first water inlet pipe; 16 - first drain pipe; 17 - second water inlet pipe; 18 - second drain pipe; 19 - driving motor; 20 - driving shaft; 21 - guiding groove; 22 - guiding block; 23 - driving part; 24 - driving block; 25 - sliding groove; 26 - threaded groove; 27 - tension spring; 28 - control part; 29 - arc plate; 30 - arc groove; 31 - groove; 32 - rotating member; 33 - rotating ring; 34 - limiting groove; 35 - limiting block; 36 - elastic rope; 37 - friction part; 38 - helical tooth block; 39 - lifting groove; 40 - second spring; 41 - triangular groove; 42 - control valve. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-9 , the present invention provides a technical solution: an inclined thermocline heat storage device for liquid heat storage, including a base 1, a conveying mechanism 3 and a control mechanism 4. A heat storage tank 2 is fixedly connected to the base 1. The conveying mechanism 3 is installed on the heat storage tank 2 for conveying liquid. The control mechanism 4 includes a control box 5 installed in the heat storage tank 2. A sliding cavity 6 is opened in the control box 5. A control board 7 is slidably connected in the sliding cavity 6 along the vertical direction. Upper through holes 8 and lower through holes 9 are opened in the control box 5. The upper through hole 8 is located above the control board 7, and the lower through hole 9 is located below the control board 7, for controlling the lifting of the control board 7, so as to block the upper through hole 8 and the lower through hole 9 and then drive the control box 5 to lift synchronously, achieving the purpose of actively sucking the liquid into the heat storage tank 2. At the same time, the liquid can also be directly conveyed into the heat storage tank 2 through the liquid pressure, and the positions of the control box 5 and the control board 7 can be adjusted during the conveying process to achieve liquid separation without affecting the liquid conveyance.

[0030] The control mechanism 4 further includes first springs 10 fixedly installed on the upper and lower sides of the control board 7. Two groups of first springs 10 are respectively fixedly connected to the inner wall of the control frame 5. A plurality of communication holes 11 are formed on the control board 7. A plurality of first sealing blocks 12 that can be inserted and sealed with the upper through holes 8 are fixedly connected to the upper side of the control board 7. A plurality of second sealing blocks 13 that can be inserted and sealed with the lower through holes 9 are fixedly connected to the lower side of the control board 7. A lifting member 14 for controlling the lifting state of the control board 7 is provided in the heat storage tank 2.

[0031] The conveying mechanism 3 includes a first water inlet pipe 15 and a first drain pipe 16 connected to the upper end of the heat storage tank 2 in a communicating manner. A second water inlet pipe 17 and a second drain pipe 18 are connected to the lower end of the heat storage tank 2 in a communicating manner. Control valves 42 are provided on the first water inlet pipe 15, the first drain pipe 16, the second water inlet pipe 17, and the second drain pipe 18.

[0032] The lifting member 14 includes a driving motor 19 fixedly installed on the base 1. The model of the driving motor 19 is preferably Y80M1-2. The output end of the driving motor 19 is coaxially fixedly connected with a driving shaft 20. The driving shaft 20 penetrates the bottom of the heat storage tank 2, as well as the control frame 5 and the control board 7, and is movably sleeved on the inner walls of the control frame 5 and the control board 7. The driving shaft 20 is rotatably connected to the heat storage tank 2. A plurality of guiding grooves 21 are formed in the heat storage tank 2. A guiding block 22 fixedly connected to the outer wall of the control frame 5 and slidably connected to the inner wall of the guiding groove 21 in the vertical direction is provided. A driving member 23 for controlling the lifting of the control board 7 when the driving shaft 20 rotates is provided on the control board 7.

[0033] The driving member 23 includes a driving block 24 installed on the control board 7. A sliding groove 25 is formed in the control board 7. The driving block 24 is slidably connected to the inner wall of the sliding groove 25 in the horizontal direction. A threaded groove 26 is formed on the outer wall of the driving shaft 20. One end of the driving block 24 is slidably connected to the inner wall of the threaded groove 26. A tension spring 27 fixedly connected to the sliding groove 25 is fixedly connected to the end of the driving block 24 away from the threaded groove 26. A control member 28 for controlling the sliding state of the driving block 24 is provided on the control board 7. There are two groups of control members 28, and they are symmetrically distributed on the upper and lower sides of the control board 7.

[0034] The control member 28 includes an arc-shaped plate 29 installed on the control board 7. An arc-shaped groove 30 is formed on the control board 7. The arc-shaped plate 29 is slidably connected to the inner wall of the arc-shaped groove 30. The arc-shaped groove 30 is communicated with the sliding groove 25. One end of the driving block 24 close to the tension spring 27 is slidably attached to the side surface of the arc-shaped plate 29. A groove 31 capable of slidably attaching to one end of the driving block 24 is formed in the middle of the side surface of the arc-shaped plate 29. A rotating member 32 for driving the arc-shaped plate 29 to rotate is provided on the control board 7.

[0035] The rotating member 32 includes a rotating ring 33 rotatably connected to the control plate 7, the driving shaft 20 passes through the rotating ring 33 and is movably sleeved with the inner wall of the rotating ring 33, the outer wall of the driving shaft 20 is provided with multiple groups of limit grooves 34, the inner wall of the rotating ring 33 is fixedly connected with a limit block 35 that is slidably connected to the limit groove 34 in the vertical direction, both ends of the arc plate 29 are fixedly connected with an elastic rope 36 that is fixedly connected to the arc groove 30, the rotating ring 33 is provided with a friction member 37 for increasing the friction driving force on the arc plate 29, the friction member 37 includes multiple groups of bevel gear blocks 38 installed on the rotating ring 33, the rotating ring 33 is provided with a lifting groove 39 that is slidably connected to the bevel gear block 38 in the vertical direction, the upper side of the bevel gear block 38 is fixedly connected with a second spring 40 that is fixedly connected to the lifting groove 39, and the side of the arc plate 29 is provided with multiple groups of triangular grooves 41.

[0036] In this embodiment, when it is necessary to electrically control the liquid in and out of the heat storage tank 2, the drive motor 19 is started to drive the drive shaft 20 to rotate, and the drive shaft 20 drives the limit groove 34 to make the limit block 35 and the rotating ring 33 rotate. The multiple groups of bevel gear blocks 38 at the bottom of the rotating ring 33 rub the triangular groove 41, so that the arc plate 29 rotates in the same direction and is limited after reaching the set position. At this time, one end of the drive block 24 slides from the inside of the groove 31 to one end position of the arc plate 29, and is pushed to one side of the thread groove 26 by the arc plate 29. After the thread groove 26 rotates to the corresponding position, one end of the drive block 24 is inserted into the thread groove 26, and the other end is limited by the resistance of the arc plate 29, which can ensure that the drive block 24 is always in the thread groove 26. As the drive shaft 20 drives the thread groove 26 to rotate, the drive block 24 drives the control plate 7 to rise and fall.

[0037] The lifting state of the control board 7 is changed according to the different rotation directions of the driving shaft 20 driven by the driving motor 19. No matter in which direction the driving shaft 20 drives the rotating ring 33 to rotate, the rotating ring 33 will make the driving block 24 rotate out from the middle of the groove 31 and abut and limit the side walls at both ends of the arc plate 29, completing the docking and sliding of the driving block 24 and the threaded groove 26, thereby driving the control board 7 to rise and fall.

[0038] When the control panel 7 rises, the first spring 10 on the upper side is compressed, the first sealing block 12 moves up to be plugged and sealed with the upper through hole 8, and the control valve 42 on the first drain pipe 16 and the second water inlet pipe 17 is opened. After that, the liquid on the upper side can be discharged through the first drain pipe 16, and the liquid in the second water inlet pipe 17 is pumped into the bottom position of the heat storage tank 2. Conversely, when the control panel 7 moves down, the first spring 10 on the lower side is compressed, the second sealing block 13 moves down to be plugged and sealed with the lower through hole 9, and the control valve 42 on the second drain pipe 18 and the first water inlet pipe 15 is opened. The liquid on the lower side can be discharged through the second drain pipe 18, and the liquid in the first water inlet pipe 15 can be pumped into the upper area of ​​the heat storage tank 2.

[0039] After the pumping and conveying is completed, the driving motor 19 drives the driving shaft 20 to rotate reversely by a set angle, so that the rotating ring 33 drives the arc-shaped plate 29 to rotate reversely by an arc length, and rotates one end of the driving block 24 to the position of the groove 31. Among them, the elastic rope 36 is used to assist the arc-shaped plate 29 to rotate to the centered position after the rotating ring 33 releases the rotational drive of the arc-shaped plate 29. Under the pulling of the tension spring 27, the docking of the driving block 24 and the threaded groove 26 is released. After that, the entire control frame 5 can be suspended in the liquid. The thermocline utilizes the characteristic that the density of the liquid increases as the temperature decreases, and controls the overall density of the internal structure of the control frame 5 to be between the densities of the liquids at the temperatures required for stratification. For example, if the liquid needs to be stratified into a lower layer with a temperature below 4°C and an upper layer with a temperature above 15°C, it is necessary to measure the average density of the liquid between 4 - 15°C, and then adjust the material of the overall seal of the internal structure of the control frame 5 to make its density close to the required average density. Then, during the process of the two-layer liquid in the heat storage tank 2 being conveyed from the upper and lower sides, the control frame 5 can automatically float to the middle position between the two layers for separation. At the same time, it can also ensure the connection of the liquids on both sides while reducing the flow rate at the connection position through the upper through hole 8, the lower through hole 9, and the communication hole 11, achieving the purpose of thermocline temperature control adjustment.

[0040] When the liquid in the heat storage tank 2 can be directly squeezed and replaced by the water pressure in the water inlet pipe, directly open the control valves 42 on the first water inlet pipe 15 and the second drain pipe 18, and the liquid above the control board 7 will increase. Since the inner diameters of the upper through hole 8, the lower through hole 9, and the communication hole 11 are small and the flow rate of the internal liquid is slow, during the process of the rapid increase of the liquid above, the entire control frame 5 and the control board 7 are pushed downward. At the same time, the low-temperature liquid below automatically flows downward into the second drain pipe 18 for discharge for subsequent refrigeration treatment.

[0041] Similarly, open the second water inlet pipe 17 and the first drain pipe 16, and the low-temperature liquid can be injected into the heat storage tank 2 from the bottom, pushing the entire control frame 5 and the control board 7 upward, and discharging the high-temperature liquid above from the first drain pipe 16, realizing automatic liquid conveyance. At this time, the limiting block 35 slides vertically inside the limiting groove 34, the driving block 24 is not in contact with the threaded groove 26, and the control frame 5 and the guiding block 22 slide vertically up and down along the guiding groove 21, realizing the automatic conveyance and separation operation of the liquid without the driving motor 19 running.

[0042] The device has a simple structure, convenient operation, and comprehensive functions. It can ensure the interconnection between hot and cold liquids to generate a thermocline while reducing the liquid flow rate in the thermocline area to ensure the temperature separation of hot and cold liquids. At the same time, it can control the fluid in the heat storage tank 2 for transportation through the driving motor 19, and can also automatically add and discharge the fluid inside the heat storage tank 2 only relying on the water pressure in the water inlet pipe without using the driving motor 19, making the use more stable and efficient.

[0043] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermocline heat storage device for liquid heat storage, characterized in that: include: A base, to which a heat storage tank is fixedly connected; Also includes: A conveying mechanism, which is installed on the heat storage tank and is used to convey the liquid; The control mechanism comprises a control frame installed in the heat storage tank, a sliding cavity is provided in the control frame, a control board is slidably connected in the sliding cavity along the vertical direction, an upper through hole and a lower through hole are provided in the control frame, the upper through hole is located on the upper side of the control board, and the lower through hole is located on the lower side of the control board, which is used to control the lifting of the control board, so as to block the upper through hole and the lower through hole and then drive the control frame to lift synchronously, so as to achieve the purpose of actively sucking the liquid into the heat storage tank, and at the same time, the liquid can be directly transported into the heat storage tank by liquid pressure, and the position of the control frame and the control board can be adjusted during the transportation process to achieve liquid separation without affecting the transportation of the liquid, and the control mechanism comprises a control frame and a control board, wherein the control frame and the control board are provided in the control frame, ... The control mechanism also includes a first spring fixedly installed on the upper and lower sides of the control board, the two groups of first springs are respectively fixedly connected to the inner wall of the control frame, a plurality of communication holes are provided on the control board, a plurality of first sealing blocks that can be plugged and sealed with the upper through holes are fixedly connected to the upper side of the control board, a plurality of second sealing blocks that can be plugged and sealed with the lower through holes are fixedly connected to the lower side of the control board, a lifting member is provided in the heat storage tank, the lifting member includes a driving motor fixedly installed on the base, the output end of the driving motor is coaxially fixedly connected with a driving shaft, the driving shaft passes through the bottom of the heat storage tank, the control frame and the control board, and is movably sleeved with the control frame and the inner wall of the control board, and the driving shaft is connected to the heat storage tank. The tank is rotatably connected, and multiple groups of guide grooves are provided in the heat storage tank. The outer wall of the control frame is fixedly connected with a guide block that is slidably connected to the inner wall of the guide groove along the vertical direction. A driving member is provided on the control board, and the driving member includes a driving block installed on the control board. A sliding groove is provided in the control board, and the driving block is slidably connected to the inner wall of the sliding groove along the horizontal direction. A threaded groove is provided on the outer wall of the driving shaft, and one end of the driving block is slidably connected to the inner wall of the threaded groove. The end of the driving block away from the threaded groove is fixedly connected with a tension spring fixedly connected to the sliding groove. A control member is provided on the control board, and the control member includes an arc plate installed on the control board, and an arc groove is provided on the control board. The arc plate and the arc groove The inner wall is slidably connected, the arc groove is connected to the sliding groove, the end of the driving block close to the tension spring is slidably fitted with the side of the arc plate, and the middle part of the side of the arc plate is provided with a groove that can slide and fit with one end of the driving block. A rotating part is provided on the control plate, and the rotating part includes a rotating ring rotatably connected to the control plate, the driving shaft passes through the rotating ring, and is movably connected to the inner wall of the rotating ring, and the outer wall of the driving shaft is provided with multiple groups of limit grooves, and the inner wall of the rotating ring is fixedly connected with a limit block slidably connected to the limit groove along the vertical direction, and both ends of the arc plate are fixedly connected with elastic ropes fixedly connected to the arc groove, and the rotating ring is provided with a friction part for increasing the friction driving force on the arc plate.

2. A thermocline heat storage device for liquid heat storage according to claim 1, characterized in that: The conveying mechanism comprises a first water inlet pipe and a first drain pipe which are communicated with the upper end of the heat storage tank, and a second water inlet pipe and a second drain pipe which are communicated with the lower end of the heat storage tank.

3. The thermocline heat storage device for liquid heat storage according to claim 1, characterized in that: The friction part includes multiple groups of bevel gear blocks installed on the rotating ring. The rotating ring is provided with lifting grooves that are slidably connected to the bevel gear blocks along the vertical direction. The upper side of the bevel gear blocks is fixedly connected to a second spring that is fixedly connected to the lifting groove. Multiple groups of triangular grooves are provided on the side of the arc plate.

4. The thermocline heat storage device for liquid heat storage according to claim 2, characterized in that: The first water inlet pipe, the first drainage pipe, the second water inlet pipe and the second drainage pipe are all provided with control valves.

5. The thermocline heat storage device for liquid heat storage according to claim 1, characterized in that: There are two groups of control components, which are symmetrically distributed on the upper and lower sides of the control panel.

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