Steam heat storage equipment

Abstract

The invention relates to the technical field of energy storage and recycling, in particular to steam heat storage equipment which comprises an outer cylinder and an inner cylinder longitudinally and movably sleeved with the outer cylinder, a steam containing bin is arranged in the inner cylinder, a top cover is connected to the upper portion of the inner cylinder, a power lifting seat is connected to the lower portion of the inner cylinder, and a magnetic intermittent generation ring is arranged in the power lifting seat. The center of the steam containing bin is upwards communicated with a steam inlet pipe; the bottom end of the steam inlet pipe is connected with an impeller bin, the centers of the steam inlet pipe and the impeller bin are connected with a steam inlet rotating rod, the lower part of the steam inlet rotating rod extends out of the impeller bin and the periphery is connected with a conical spiral steam outlet strip, and the bottom of the conical spiral steam outlet strip is connected with a stretching magnetic ring; the impeller bin is connected with a static impeller, the steam inlet rotating rod is connected with a movable impeller, and a steam conveying channel is arranged from the steam inlet pipe to the upper surface of the conical spiral steam outlet strip. According to the scheme, steam and saturated water are fully mixed, heat exchange and dispersion are balanced, the internal temperature gradient is small, and steam is fully condensed and releases latent heat; and rapid deployment of equipment and efficient loading and unloading of the thermal insulation layer are also realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage and recycling, in particular to a steam heat storage device. BACKGROUND

[0002] In modern industry, steam heat storage devices can "absorb-store-release" steam energy on demand, balance the fluctuation of steam supply and demand, and thus improve energy utilization efficiency. The main working principle is to store heat energy in the form of saturated water and release it in the form of saturated steam when needed. This ingenious design not only ensures the stability of the steam heating system during peak periods, but also improves the economy of the energy system.

[0003] For existing steam heat storage devices, there is still a lot of room for technical upgrading. The most important thing is that during the heat storage stage, it is necessary to take technical measures to avoid local concentration of steam into saturated water, insufficient contact with water, and uneven energy transfer. If steam concentrates and impacts local water, an over-temperature area will be formed at the concentrated charging site, the water temperature difference is large, and the steam is more evenly charged into the saturated water, which is the key to avoiding local overheating and temperature difference impact. At the same time, it can ensure sufficient heat exchange between steam and water and maintain the stability of the heat storage / heat release process, which is directly related to the operating efficiency and service life of the equipment and the heating system. In addition, improving the installation efficiency of the equipment can effectively shorten the construction period, reduce labor and time costs, meet the requirements of environmental protection and energy saving and emission reduction; and improving the installation and replacement efficiency of the outer thermal insulation layer of the equipment can ensure that the thermal insulation layer quickly forms a complete and fitted protective structure, reduces energy loss, and at the same time improves the consistency of installation quality, further enhances the economy and safety of equipment operation. SUMMARY

[0004] The purpose of the present application is to provide a steam heat storage device that can achieve efficient and sufficient heat storage inside the device, convenient installation and removal of the outer thermal insulation layer, and rapid deployment of the overall device, meeting the needs of green and environmentally friendly technology development.

[0005] To achieve the above purposes, the technical solution adopted by the present application is: A steam heat storage device, comprising an outer cylinder and an inner cylinder movably sleeved in the outer cylinder, a steam storage bin is arranged in the inner cylinder, a top cover is connected to the upper top wall of the steam storage bin, a power lifting seat is connected to the lower bottom wall of the steam storage bin, a magnetic intermittent generation ring is arranged in the power lifting seat, and a steam inlet pipe is connected to the center of the steam storage bin and extends upward; The bottom end of the steam inlet pipe is connected with an impeller bin, and the center of the two is rotationally connected with a steam inlet rotating rod, the lower part of the steam inlet rotating rod extends out of the impeller bin and is peripherally connected with a conical spiral steam outlet strip, the bottom of the conical spiral steam outlet strip is connected with a pull magnetic ring; in the impeller bin, the impeller bin is connected with a static vane in the central direction, the steam inlet rotating rod is connected with a dynamic vane in the peripheral direction, and the static vane and the dynamic vane are longitudinally arranged in layers and spaced apart. A steam conveying channel is arranged from the upper opening of the steam inlet pipe to the upper surface of the conical spiral steam outlet strip.

[0006] Further, a conical steam conveying frame is arranged in the steam inlet pipe and coaxial with the central axis, the top end of the conical steam conveying frame and the bottom end of the impeller bin are respectively connected with the top end and the rod body of the steam inlet rotating rod through a first rotation support and a second rotation support; the static vane is fixed to the inner wall of the impeller bin and has a gap with the steam inlet rotating rod, the dynamic vane is fixed to the outer wall of the steam inlet rotating rod and has a gap with the impeller bin, and the steam inlet rotating rod rotates synchronously with the dynamic vane.

[0007] Further, a rod inner steam conveying cavity is arranged below the dynamic vane in the steam inlet rotating rod, the upper end of the rod inner steam conveying cavity is connected with the inside of the impeller bin through a rod wall upper steam conveying hole, the rod wall upper steam conveying hole is located above the second rotation support, and the bottom end of the rod inner steam conveying cavity is connected with a spiral steam channel arranged in the conical spiral steam outlet strip through a rod wall lower steam conveying hole.

[0008] Further, the spiral steam channel gradually expands in the outer diameter from top to bottom along the configuration of the conical spiral steam outlet strip, the upper surface of the spiral steam outlet strip is provided with a steam jet hole connected with the spiral steam channel, and the steam jet hole is arranged in a manner of being immersed in water.

[0009] Further, the magnetic intermittent generating ring and the pull magnetic ring are arranged coaxially with the central axis, and the distance between the two is variable, and the magnetic intermittent generating ring is provided with a power-on and power-off controllable electromagnetic coil.

[0010] Further, the outer cylinder body is open and penetrates through the upper and lower ends, the dynamic power lifting seat is connected with a spiral pile foundation group at the bottom, the spiral pile foundation group comprises a driving gear and a plurality of driven gears which are arranged in meshing transmission around the driving gear, the center of each driven gear is connected with a spiral tapered pile one by one downward, the bottom of the inner cylinder body is provided with a center motor and a fixed shaft column which are arranged downward, the fixed shaft column is arranged around the center motor, the spiral tapered piles are one by one sleeved outside the fixed shaft column through bearings, and the rotating shaft of the center motor is connected with the driving gear.

[0011] Further, the steam outlet pipe of the steam conveying container is arranged on the side of the steam inlet pipe, the steam inlet pipe and the steam outlet pipe longitudinally penetrate the upper top wall and the top cover of the steam conveying container, and the bottom end of the steam outlet pipe is connected with a steam-water separation device.

[0012] Furthermore, the top inner circumference of the outer cylinder is provided with an inwardly protruding limiting ring, which is always located below the flange provided on the outer periphery of the top cover. The upper outer periphery of the inner cylinder is provided with a movable groove that matches the limiting ring. When the limiting ring contacts the bottom of the movable groove, the entire helical pile foundation assembly retracts into the outer cylinder.

[0013] Furthermore, the bottom end of the outer cylinder has a transversely protruding annular groove, and a trolley that can move around the outer cylinder is provided on the annular groove. A free turntable is provided on the trolley, and a detachable roller is connected to the free turntable. A heat insulation film can be wound around the outside of the roller layer by layer.

[0014] Furthermore, the upper part of the free turntable is connected to the bottom end of the roller via a hinge shaft, which is driven by a geared motor shaft, allowing the roller to switch between a horizontal and vertical placement state.

[0015] Compared with the prior art, the beneficial effects of the steam thermal storage device disclosed in this invention are as follows: 1. By causing the conical spiral steam outlet bar to generate longitudinal elastic expansion and contraction oscillation and rotation to generate spiral disturbance, the steam released from the jet holes on the upper surface enters the saturated water from multiple positions, mixes fully with the saturated water, and the uniform steam filling makes the heat exchange between steam and water dispersed and balanced, with a very small internal temperature gradient. The uniformly distributed steam and the contact area between the saturated water are greatly increased, and the steam can fully condense and maximize the release of latent heat, significantly improving the heat storage efficiency. 2. By setting an outer cylinder and an inner cylinder that is longitudinally movable, the bottom wall of the steam tank is connected to a power lifting seat. After the equipment is in place, it drives the inner cylinder to move down and fix it, realizing the modular and efficient assembly and deployment of the heat storage equipment, with a small footprint, and combining construction efficiency and environmental friendliness. 3. It enables rapid wrapping and peeling of thermal insulation film on the outer cylinder, keeping the heat loss rate of the equipment below 1%, avoiding the formation of a "temperature gradient" inside the equipment, improving the effective heat storage capacity, preventing heat loss from causing a sudden drop in internal pressure, ensuring the stable operation of the heat storage equipment and heating system, and reducing carbon emissions. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention; Figure 2 This is a cross-sectional structural diagram of Embodiment 1 of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 for Figure 2Enlarged view of point C in the middle; Figure 6 This is a three-dimensional structural diagram of the steam inlet swivel and peripheral components in this invention; Figure 7 This is a cross-sectional structural diagram of the steam inlet swivel and peripheral components in this invention; Figure 8 for Figure 7 Enlarged view of point D; Figure 9 This is a schematic diagram of the stationary impeller in this invention; Figure 10 This is an exploded structural diagram of the spiral pile foundation assembly in this invention; Figure 11 This is a cross-sectional exploded view of Embodiment 2 of the present invention; Figure 12 for Figure 11 Enlarged view of point E in the middle; Figure 13 This is a side view of the structure of Embodiment 2 of the present invention.

[0017] Marked in the image: 1. Outer cylinder; 101. Limiting ring; 102. Ring groove; 103. Pulley; 104. Turntable; 105. Roller; 106. Thermal insulation film; 2. Inner cylinder; 201. Steam container; 202. Top cover; 203. Power lifting seat; 204. Magnetic intermittent generating ring; 205. Steam inlet pipe; 206. Steam outlet pipe; 207. Impeller compartment; 208. Steam inlet swivel rod; 209. Conical spiral steam outlet bar; 210. Stretching magnetic ring; 211. Stationary impeller; 212. Moving impeller; 213. Conical steam venting frame; 214. First rotating support; 215. Steam venting chamber inside the rod; 216. Steam venting hole on the rod wall; 217. Second rotating support; 218. Steam venting hole at the bottom of the rod wall; 219. Spiral pile foundation assembly; 219a. Drive gear; 219b. Driven gear; 219c. Spiral conical pile; 219d. Fixed shaft column; 219e. Central motor; 220. Lifting connector. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that if the terms "upper", "lower", "middle", "inner", "outer" are used to indicate the direction or positional relationship based on the direction or positional relationship shown in the accompanying drawings, they are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] Please see Figures 1-9 A steam heat storage device, embodiment 1: includes an outer cylinder 1 and an inner cylinder 2 that is longitudinally movably sleeved inside it. A steam chamber 201 is provided in the inner cylinder 2. A top cover 202 is connected to the upper top wall of the steam chamber 201. A power lifting seat 203 is connected to the lower bottom wall of the steam chamber 201. A magnetic intermittent generating ring 204 is provided in the power lifting seat 203. The inner cylinder 2 moves longitudinally synchronously with the power lifting seat 203 in the outer cylinder 1. A steam inlet pipe 205 is connected to the center of the steam container 201 and extends upwards. A steam outlet pipe 206 is provided on the side of the steam inlet pipe 205 and extends through the steam container 201. Both the steam inlet pipe 205 and the steam outlet pipe 206 extend longitudinally through the upper top wall and the top cover 202 of the steam container 201. The bottom end of the steam outlet pipe 206 is connected to a steam-water separator to prevent water droplets from being carried away when the steam is output.

[0020] During the heat storage phase, it is necessary to take technical measures to avoid localized concentrated steam filling into saturated water, insufficient contact between steam and water, and uneven energy transfer. If steam concentrates and impacts a local water body, an overheated zone will form at the point of concentrated filling, resulting in a large temperature difference in the water. During non-uniform steam filling, high-pressure steam filling into the water body will form uneven local jets and eddies, and some steam will not fully contact the saturated water to condense (not fully releasing latent heat). This uncondensed steam cannot participate in "latent heat storage," resulting in a decrease in the amount of heat stored per unit time and reducing the heat storage efficiency of the equipment.

[0021] Specifically, the bottom end of the steam inlet pipe 205 is connected to the impeller chamber 207, and the two are rotatably connected by an inlet swivel 208. The lower part of the inlet swivel 208 extends out of the impeller chamber 207 and is connected to a conical spiral steam outlet bar 209. The bottom of the conical spiral steam outlet bar 209 is connected to a stretching magnetic ring 210. Inside the impeller chamber 207, the impeller chamber 207 is connected to a stationary impeller 211 in the center direction, and the inlet swivel 208 is connected to a moving impeller 212 in the outer direction. The stationary impeller 211 and the moving impeller 212 are arranged longitudinally in layers. For details, please refer to the following: Figure 1 , Figure 2 and Figure 7 A conical steam inlet frame 213 is installed along the central axis inside the steam inlet pipe 205. The inner and outer conical surfaces of the conical steam inlet frame 213 are provided with through holes for steam to flow from top to bottom. The top end of the conical steam inlet frame 213 and the bottom end of the impeller chamber 207 are connected to the top end and the body of the steam inlet swivel rod 208 through the first swivel support 214 and the second swivel support 217, respectively. The second swivel support 217 has both rotation support and sealing functions. The stationary impeller 211 is fixed to the inner wall of the impeller chamber 207 and has a gap with the steam inlet swivel rod 208. The moving impeller 212 is fixed to the outer wall of the steam inlet swivel rod 208 and has a gap with the impeller chamber 207. Furthermore, an internal steam passage chamber 215 is provided in the steam inlet swivel rod 208 below the moving impeller 212. The upper end of the internal steam passage chamber 215 is connected to the interior of the impeller chamber 207 through a steam passage hole 216 on the rod wall. The steam passage hole 216 on the rod wall is located above the second rotating support 217. The bottom end of the internal steam passage chamber 215 is connected to the spiral steam passage provided in the conical spiral steam outlet bar 209 through a lower steam passage hole 218 on the rod wall. The spiral steam passage gradually expands in outer diameter from top to bottom along with the configuration of the conical spiral steam outlet bar 209. The upper surface of the spiral steam outlet bar 209 is provided with jet holes that connect to the spiral steam passage. The jet holes are immersed in saturated water. Through the above configuration, a steam transmission channel is formed from the upper opening of the steam inlet pipe 205 to the jet holes on the upper surface of the conical spiral steam outlet bar 209. During the heat storage stage, when the steam fluid is input downward from the steam inlet pipe 205, passes through the conical steam duct 213 and enters the impeller chamber 207, the fluid impact energy of the steam is converted into mechanical rotational energy in the impeller chamber 207 through the cooperation of the stationary impeller 211 and the moving impeller 212, which drives the moving impeller 212 to rotate synchronously with the steam inlet swivel bar 208. The steam inlet swivel bar 208 simultaneously drives the spiral steam passage to rotate synchronously with the conical spiral steam outlet bar 209. On the other hand, the magnetic intermittent generating ring 204 and the stretching magnetic ring 210 are arranged on the same central axis. The magnetic intermittent generating ring 204 is equipped with a power supply controllable electromagnetic coil. By changing the energization status of the electromagnetic coil through the control system, the distance between the magnetic intermittent generating ring 204 and the stretching magnetic ring 210 can be made variable. Since the height of the magnetic intermittent generating ring 204 is fixed, the stretching magnetic ring 210 can move up and down, which drives the conical spiral steam outlet bar 209 to produce longitudinal vibration.

[0022] In this specific embodiment, during the steam injection and heat storage stage, the electromagnetic coil is intermittently powered, and the entire structure of the stretched magnetic ring 210 and the upper conical spiral steam outlet bar 209 generates longitudinal elastic expansion and contraction oscillation. Combined with the spiral disturbance generated by the rotation of the conical spiral steam outlet bar 209 driven by the steam inlet swirl rod 208, the steam released from the jet holes on the upper surface of the spiral steam outlet bar 209 enters the saturated water from multiple positions, mixes thoroughly with the saturated water, and is uniformly filled with steam, so that the heat exchange between the steam and water is dispersed and balanced, the internal temperature gradient is minimal, and the contact area between the uniformly distributed steam and the saturated water is greatly increased. The steam can fully condense and maximize the release of latent heat (the heat of the steam is mainly latent heat, accounting for 70%-80%), improving the heat storage efficiency. The jet holes are equipped with nozzles, and the steam dissolves rapidly into the saturated water through the nozzles, achieving a high-efficiency heat storage effect. After the heat storage process, the temperature and pressure of the saturated water in the steam container 201 both increase.

[0023] Combination Figure 1 , Figure 2 and Figure 5As shown, the outer cylinder 1 has openings at both the top and bottom. A convex limiting ring 101 is provided on the inner circumference of the top of the outer cylinder 1. The limiting ring 101 is always located below the flange provided on the outer periphery of the top cover 202. A movable groove matching the limiting ring 101 is provided on the upper outer periphery of the inner cylinder 2. Simultaneously, the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2 are slidably connected by a longitudinally arranged linear guide rib and guide groove module. That is, one of the outer cylinder 1 and the inner cylinder 2 is connected to a linear guide rib, and the other is connected to a matching linear guide groove, thus restricting the vertical movement of the inner cylinder 2 within the outer cylinder 1 and preventing relative rotation between the two. (See further details...) Figure 10 The bottom of the power lifting base 203 is connected to a spiral pile foundation 219. The spiral pile foundation 219 includes a drive gear 219a and several driven gears 219b meshing around the drive gear 219a. The center of each driven gear 219b is connected to a spiral cone pile 219c one-to-one. The bottom of the inner cylinder 2 extends downward and is equipped with a central motor 219e and a fixed shaft column 219d. The fixed shaft column 219d is arranged around the central motor 219e. The spiral cone piles 219c are sleeved one-to-one on the outside of the fixed shaft column 219d through bearings. The shaft of the central motor 219e is connected to the drive gear 219a. The central motor 219e is driven to work by the control system. The spiral cone piles 219c, with a quantity of ≥3, rotate synchronously and are screwed downward into the setting point. When the equipment is moved out, the operation is reversed to achieve overall grounding and fixation, and rapid deployment.

[0024] In this specific embodiment, when the limiting ring 101 contacts the bottom of the movable groove, the spiral pile foundation assembly 219 retracts entirely into the outer cylinder 1, facilitating transfer and transportation. After reaching the set position that has been leveled, the longitudinal hoisting equipment is lowered onto the set position, and the bottom of the outer cylinder 1 touches the ground. Then, through the operation of the spiral pile foundation assembly 219, the spiral cone pile 219c rotates and is screwed into the foundation to achieve the bearing function. The limiting ring 101 moves upward in the movable groove, and the inner cylinder 2 descends, realizing the rapid positioning and installation of the equipment. This solution combines high construction efficiency with environmental friendliness. This solution enables modular and efficient assembly and deployment of the thermal storage equipment, with a small footprint, avoiding the problem of large footprint of horizontal steam thermal storage equipment.

[0025] Steam thermal storage equipment is essentially a "temporary warehouse of thermal energy." If its exterior lacks effective insulation, the stored thermal energy will continuously dissipate to the external environment through the equipment's outer shell. A significant temperature difference exists between the high-temperature saturated water inside the equipment and the external environment, causing heat loss through conduction, convection, and radiation. Thermal energy loss can account for a high proportion of the total stored heat. To compensate for this loss, frequent replenishment of thermal energy to the storage equipment via boilers or electric heaters is necessary, leading to additional fuel consumption (such as natural gas or coal) or electricity consumption, which violates the principles of environmental protection and energy conservation.

[0026] Example 2: Based on the aforementioned examples, in order to achieve flexible and rapid installation, removal, or replacement of the external thermal insulation layer of the equipment, combined with... Figures 11-12 As shown, an annular groove 102 is laterally protruding from the bottom of the outer cylinder 1. A trolley 103 is provided on the annular groove 102, which can move around the outer cylinder 1 for one revolution. An electric roller or gear is provided inside the trolley 103, which contacts the annular groove 102. Driving the roller or gear to rotate the trolley 103 enables the trolley 103 to move in a circular motion around the outer cylinder 1 based on the annular groove 102. A free turntable 104 is provided on the trolley 103, and a detachable roller 105 is connected to the free turntable 104. The roller 105 can be longitudinally installed on the free turntable 104 and rotates on its own axis. A heat insulation film 106 can be wound layer by layer around the roller 105. When it is necessary to cover the outer cylinder 1 of the heat storage equipment with a heat insulation layer, the heat insulation film 106 is wound layer by layer. The roller 105 is vertically mounted on the turntable 104. The head edge of the thermal insulation film 106 is then attached or nailed to the outer wall of the outer cylinder 1, with the connection point serving as the starting point for winding. The trolley 103 is then driven to move around the outer cylinder 1 in a circular motion. In conjunction with the turntable 104, the thermal insulation film 106 on the roller 105 is transferred layer by layer to the outer periphery of the outer cylinder 1, achieving efficient and convenient wrapping and replacement of the thermal insulation film 106. The thermal insulation film 106 can be cut from any part, and the number of wrapping layers can be flexibly adjusted and precisely controlled as needed. When it is necessary to peel off the old thermal insulation film 106 from the outer periphery of the outer cylinder 1, an empty roller 105 is installed on the turntable 104, and the process is reversed as described above.

[0027] Further optimization schemes such as Figure 13 As shown, the upper part of the free turntable 104 is connected to the bottom end of the roller 105 through a hinge shaft. The hinge shaft is driven by the shaft of the geared motor. The roller 105 can be flipped and switched between a horizontal and vertical placement state. The horizontal placement state of the roller 105 effectively improves the ease of loading and unloading the thermal insulation film 106.

[0028] In this specific embodiment, the thermal insulation film 106 is quickly applied and peeled off around the outer cylinder 1. It also effectively addresses the problem that "the insulation layer ages after long-term use, reducing its thermal insulation efficiency and requiring periodic replacement." This allows for efficient on-site application and replacement of the insulation layer without disassembly and transport back to the factory. The thermal insulation film 106 has a thermal conductivity of ≤0.025W / (m·K), and the equipment heat loss rate is controlled within 1%. This avoids the formation of a "temperature gradient" inside the equipment, such as the stratification phenomenon of "low outer water temperature and high central water temperature," thereby increasing the effective heat storage capacity, preventing heat loss that could lead to a sudden drop in internal pressure, ensuring the stable operation of the heat storage equipment and heating system, and reducing carbon emissions.

[0029] In addition, in the technical solution disclosed herein, the steam chamber 201 should be connected to the outside world by a safety valve, a water supply pipeline, and other necessary components in the prior art; the top cover 202 is connected to a hoisting connector 220 to facilitate the hoisting and transportation of the equipment.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. For those skilled in the art, various changes, modifications or additions made without departing from the concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A steam thermal storage device, characterized in that: The device includes an outer cylinder (1) and an inner cylinder (2) that is longitudinally and movably connected therein. A steam chamber (201) is provided in the inner cylinder (2). A top cover (202) is connected to the upper top wall of the steam chamber (201). A power lifting seat (203) is connected to the lower bottom wall of the steam chamber (201). A magnetic intermittent generating ring (204) is provided inside the power lifting seat (203). A steam inlet pipe (205) is connected to the center of the steam chamber (201) and extends upwards. The bottom end of the steam inlet pipe (205) is connected to an impeller chamber (207), and the two are rotatably connected by an inlet swivel rod (208). The lower part of the inlet swivel rod (208) extends out of the impeller chamber (207) and is connected to a conical spiral steam outlet strip (209) on its periphery. The bottom of the conical spiral steam outlet strip (209) is connected to a stretching magnetic ring (210). The impeller chamber (207) is connected to a stationary impeller (211) in the center direction, and the inlet swivel rod (208) is connected to a moving impeller (212) in the periphery direction. The stationary impeller (211) and the moving impeller (212) are arranged longitudinally in layers. A steam delivery channel is provided from the top of the steam inlet pipe (205) to the upper surface of the conical spiral steam outlet bar (209).

2. The steam thermal storage device according to claim 1, characterized in that: A conical steam inlet frame (213) is provided along the central axis inside the steam inlet pipe (205). The top end of the conical steam inlet frame (213) and the bottom end of the impeller chamber (207) are connected to the steam inlet swivel rod (208) through the first swivel support (214) and the second swivel support (217), respectively. The stationary impeller (211) is fixed to the inner wall of the impeller chamber (207) and has a gap with the steam inlet swivel rod (208). The moving impeller (212) is fixed to the outer wall of the steam inlet swivel rod (208) and has a gap with the impeller chamber (207).

3. A steam thermal storage device according to claim 2, characterized in that: The steam inlet swivel rod (208) is provided with an internal steam passage cavity (215) below the moving impeller (212). The upper end of the internal steam passage cavity (215) is connected to the interior of the impeller chamber (207) through a steam passage hole (216) on the rod wall. The steam passage hole (216) on the rod wall is located above the second rotating support (217). The bottom end of the internal steam passage cavity (215) is connected to the spiral steam passage provided in the conical spiral steam outlet bar (209) through a steam passage hole (218) on the lower part of the rod wall.

4. A steam thermal storage device according to claim 3, characterized in that: The spiral steam passage gradually expands in outer diameter from top to bottom along with the configuration of the conical spiral steam outlet bar (209), and the upper surface of the spiral steam outlet bar (209) is provided with a jet hole that connects to the spiral steam passage.

5. A steam thermal storage device according to claim 4, characterized in that: The magnetic intermittent generating ring (204) and the stretching magnetic ring (210) are arranged on the same central axis, and the distance between them is variable. A controllable electromagnetic coil is provided in the magnetic intermittent generating ring (204).

6. A steam thermal storage device according to claim 1, characterized in that: The outer cylinder (1) has openings at both the top and bottom. The bottom of the power lifting seat (203) is connected to a spiral pile foundation assembly (219). The spiral pile foundation assembly (219) includes a drive gear (219a) and several driven gears (219b) meshing and transmitting around the drive gear (219a). The driven gears (219b) are connected one-to-one with spiral cone piles (219c) facing downwards. The bottom of the inner cylinder (2) has a central motor (219e) and a fixed shaft column (219d) extending downwards. The spiral cone piles (219c) are sleeved one-to-one with the fixed shaft column (219d) through bearings. The shaft of the central motor (219e) is connected to the drive gear (219a).

7. A steam thermal storage device according to claim 1, characterized in that: A steam outlet pipe (206) is provided on the side of the steam inlet pipe (205) to conduct steam to the steam container (201). The steam inlet pipe (205) and the steam outlet pipe (206) both longitudinally penetrate the upper top wall and the top cover (202) of the steam container (201).

8. A steam thermal storage device according to claim 6, characterized in that: The top inner circumference of the outer cylinder (1) is provided with an inwardly protruding limiting ring (101). The limiting ring (101) is always located below the flange provided on the outer periphery of the top cover (202). The upper part of the outer periphery of the inner cylinder (2) is provided with a movable groove that matches the limiting ring (101). When the limiting ring (101) contacts the bottom of the movable groove, the spiral pile foundation group (219) is retracted into the outer cylinder (1).

9. A steam thermal storage device according to claim 1, characterized in that: It also includes an annular groove (102) that is laterally protruding at the bottom of the outer cylinder (1), a movable trolley (103) is provided on the annular groove (102), a free turntable (104) is provided on the trolley (103), a detachable roller (105) is connected to the free turntable (104), and a heat insulation film (106) can be wound layer by layer on the outside of the roller (105).

10. A steam thermal storage device according to claim 9, characterized in that: The upper part of the free turntable (104) is connected to the bottom end of the roller (105) via a hinge shaft. The hinge shaft is driven by the shaft of a speed reduction motor. The roller (105) can be flipped and switched between a horizontally placed state and a vertically placed state.

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