Preheating system of electric steam heat storage boiler
By introducing an insulated outer cylinder and heat insulation materials into the electric steam boiler, the kinetic energy of high-temperature steam is used to accelerate water evaporation, and hot water is preheated through internal heat exchange tubes, thus solving the problem of boiler heat loss and achieving efficient use of electrical energy and saving of thermal energy.
Patent Information
- Application Number
- CN202511831468.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-02-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing electric steam boilers exhibit heat loss during water evaporation, leading to increased energy consumption and a decrease in water temperature near the boiler's inner wall, making it impossible to effectively utilize the heat energy from the boiler's outer surface.
An electric steam thermal storage boiler preheating system was designed, including an insulated outer cylinder, a liquid storage tank, an accelerated evaporation mechanism, and a furnace body heat exchange mechanism. By filling the space between the insulated outer cylinder and the liquid storage tank with insulating material, the kinetic energy of high-temperature steam is used to accelerate water evaporation, and the water is efficiently preheated through internal heat exchange tubes and preheating arc tubes to reduce heat loss.
It increases the rate of water evaporation, reduces power consumption, ensures a constant boiler surface temperature, and improves thermal energy utilization efficiency.
Smart Images
Figure CN121498035A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electric steam boiler technology, specifically to an electric steam thermal storage boiler preheating system. Background Technology
[0002] Thermal storage electric boilers are devices that use electricity as their energy source, heating a thermal storage medium to store heat energy during off-peak hours and releasing it for heating during peak hours. Their core technology utilizes resistance heating elements to convert electrical energy into heat energy. By leveraging time-of-use pricing policies, operating costs are reduced, allowing them to meet the centralized heating needs of large public buildings.
[0003] When the heating elements inside the boiler are energized and the stored water is continuously evaporated at high temperatures, the boiler body will experience heat loss due to the heat radiation from the continuous evaporation of water. Furthermore, the boiler's outer surface volume is too large, and directly adding insulation material to the inner wall of the boiler has limited effect on preventing heat loss. Therefore, during the evaporation of water, the heat energy dissipated from the boiler body is difficult to utilize effectively. At the same time, the water temperature near the inner wall of the boiler will also decrease due to the excessive heat dissipation from the outer surface of the boiler body, which will increase the energy loss.
[0004] In view of this, an electric steam thermal storage boiler preheating system was designed to solve the above problems. Summary of the Invention
[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
[0006] Therefore, the technical solution adopted in this invention is as follows: An electric steam thermal storage boiler preheating system includes a boiler structure, an electric steam mechanism installed within the boiler structure, a furnace body heat exchange mechanism installed within the boiler structure, and an accelerated evaporation mechanism installed within the electric steam mechanism. The electric steam mechanism includes a liquid storage tank, a vertical pipe fixedly installed on the top of the liquid storage tank, a steam cylinder fixedly installed on the top of the vertical pipe, an exhaust pipe fixedly installed on the top of the steam cylinder, and a slot provided on the outer wall of the steam cylinder. The accelerated evaporation mechanism includes a protective cover installed within the slot, two second studs provided on the top of the protective cover, a pneumatic impeller movably installed at the inner end of the protective cover, and a rod in the middle of the pneumatic impeller mounted with… The drive wheel and shaft are movably mounted on the other end of the protective cover. The transmission wheel is mounted on the shaft. The sliding column is fixedly mounted on the outside of the shaft. The sliding sleeve is movably mounted on the outside of the sliding column. The guide rod is inserted into the inside of the sliding sleeve and engaged in the sliding groove on the outer wall of the sliding column. The end plate is fixedly mounted on the outer end of the guide rod, and two symmetrically distributed traction rods are fixedly mounted inside the end plate. A transmission belt is connected to the drive wheel and the transmission wheel. Two rod sleeves are fixedly mounted on the top of the liquid storage tank, and two traction rods are adapted to pass through the two rod sleeves. Multiple evenly distributed vibrating pads are fixedly mounted on the outside of the two traction rods, and the multiple vibrating pads are located in the inner cavity of the liquid storage tank.
[0007] In a preferred embodiment, the present invention may be further configured as follows: the boiler mechanism includes an insulated outer cylinder disposed outside the liquid storage tank, and a gap is reserved between the insulated outer cylinder and the liquid storage tank; two load-bearing washers are fixedly installed at the top and bottom of the inner cavity of the insulated outer cylinder, and the load-bearing washers have a plurality of evenly distributed through holes inside; the outer shell is fixedly installed outside the insulated outer cylinder; and the insulation material is disposed in the gap.
[0008] In a preferred embodiment, the present invention can be further configured as follows: an inlet pipe is fixedly installed at the bottom of the liquid storage tank, a reflux cylinder is installed at the bottom end of the inlet pipe, a docking end pipe is installed at the other end of the reflux cylinder, and a plurality of preheating arc pipes are evenly distributed between the inlet pipe and the docking end pipe, wherein the plurality of preheating arc pipes are located in the inner cavity of the reflux cylinder. The preheating arc tube is immersed in high-temperature water in the inner cavity of the return cylinder, and performs efficient preheating treatment on the continuously fed liquid.
[0009] In a preferred embodiment, the present invention can be further configured as follows: the furnace heat exchange mechanism includes a plurality of internal heat exchange tubes installed inside two load-bearing gaskets, a sleeve fixedly installed at the bottom of the plurality of internal heat exchange tubes, an end tube fixedly installed at the top of the plurality of internal heat exchange tubes, a branch tube installed on the lower surface of the sleeve, and the other end of the branch tube connected to the return cylinder. The end tube has multiple evenly distributed pads fixedly installed inside, and multiple first studs are provided on the top of the end tube, with a limiting frame fixedly installed on the top of the end tube.
[0010] In a preferred embodiment, the present invention can be further configured such that: an outer pipe is fixedly installed on the outside of the end pipe, and the outer pipe is located in the middle of the inner cavity of the outer shell, and the outer shell is used to keep the water circulating in the outer pipe warm.
[0011] In a preferred embodiment, the present invention may be further configured such that a base is fixedly mounted on the bottom of the protective cover, and the base is mounted on the outside of a plurality of first studs.
[0012] In a preferred embodiment, the present invention can be further configured such that: a hydraulic impeller is fixedly installed at the bottom end of the shaft, and the hydraulic impeller is located in the inner cavity of the end pipe, the hydraulic impeller being used to provide kinetic energy for the circulating flow of preheated water.
[0013] In a preferred embodiment, the present invention can be further configured such that the inner wall of the insulation material is adapted to fit the outer surface of the liquid storage tank, and a certain gap is reserved between the outer wall of the insulation material and the inner wall of the insulation outer cylinder.
[0014] In a preferred embodiment, the present invention may be further configured such that a frame is connected to the outer wall of the steam cylinder, and two second studs are mounted on the frame by nuts.
[0015] In a preferred embodiment, the present invention can be further configured such that: the top and bottom of the vibrating pad are provided with annular grooves to enhance the mixing pressure of the water in the storage tank and improve the evaporation rate of the mixed water.
[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. This invention provides an efficient kinetic energy acceleration mechanism by reserving a hollow gap between the heat-insulating outer cylinder and the storage tank, and filling the hollow gap with heat-insulating material. As the water inside the storage tank is evaporated by the heating element, the high-pressure airflow generated by the high-temperature steam passing through the inner cavity of the steam cylinder provides effective kinetic energy for the evaporation acceleration mechanism. Finally, multiple vibrating pads located in the inner cavity of the storage tank can accelerate the mixing of the continuously supplied water and the water in the tank, thereby increasing the speed of water evaporation and further reducing power consumption.
[0017] 2. This invention installs an inlet pipe at the bottom of the storage tank and installs multiple preheating arc pipes evenly distributed in the reflux cylinder between the inlet pipe and the docking end pipe. When the water is fed in, it flows through the multiple preheating arc pipes. The wide-diameter residual heat arc pipes can work with the high-temperature water circulating in the reflux cylinder to quickly preheat the water, thereby avoiding excessive temperature difference after water mixing and thus increasing power consumption.
[0018] 3. This invention sets up multiple evenly distributed internal heat exchange pipes in the reserved gaps and installs insulation material on the outside of the multiple internal heat exchange pipes. As the water inside the storage tank continues to evaporate and release high temperature, the heat energy dissipating from the storage tank to the outside is first radiated into the insulation material. The preheated water circulating and flowing at high speed along the inner cavity of the multiple internal heat exchange pipes will efficiently exchange the dissipated heat energy, thereby ensuring a constant surface temperature of the insulation outer cylinder. Attached Figure Description
[0019] Figure 1 This is a schematic diagram illustrating the use of the present invention; Figure 2 This is a bottom view diagram of the present invention; Figure 3 This is a cross-sectional schematic diagram of the heat-insulating outer cylinder of the present invention; Figure 4 For the present invention Figure 3 An explosion diagram; Figure 5 This is a schematic diagram of the electric steam mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 For the present invention Figure 3 A partial schematic diagram; Figure 8 This is a schematic diagram of the furnace heat exchange mechanism of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of point B in the middle; Figure 10 This is a schematic diagram of the accelerated evaporation mechanism of the present invention; Figure 11 For the present invention Figure 10 Enlarged diagram of point C in the middle.
[0020] Figure label: 100. Boiler mechanism; 110. Insulated outer cylinder; 120. Load-bearing gasket; 130. Outer shell; 140. Insulation material; 200. Electric steam mechanism; 210. Liquid storage tank; 220. Liquid inlet pipe; 230. Return cylinder; 240. Connecting end pipe; 250. Preheating arc pipe; 260. Vertical pipe; 2601. Steam cylinder; 2602. Exhaust pipe; 300. Furnace body heat exchange mechanism; 310. Internal heat exchange tube; 320. Sheath; 330. Branch pipe; 340. End pipe; 3401. Spacer block; 3402. First stud; 3403. Limiting bracket; 350. Outer pipe; 400. Accelerated evaporation mechanism; 410. Base; 4101. Protective cover; 4102. Second stud; 420. Pneumatic impeller; 4201. Drive wheel; 430. Shaft; 4301. Transmission wheel; 440. Hydraulic impeller; 450. Transmission belt; 460. Sliding column; 4601. Sliding sleeve; 4602. Guide rod; 470. End plate; 4701. Traction rod; 480. Rod sleeve; 490. Vibrating liquid pad. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0022] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.
[0023] The following describes, with reference to the accompanying drawings, some embodiments of an electric steam thermal storage boiler preheating system provided by the present invention.
[0024] Example 1: Combination Figures 1 to 11As shown, the present invention provides an electric steam thermal storage boiler preheating system, including a boiler structure 100, an electric steam mechanism 200 installed in the boiler structure 100, a furnace body heat exchange mechanism 300 installed in the boiler structure 100, and an accelerated evaporation mechanism 400 installed in the electric steam mechanism 200. The boiler structure 100 is used to continuously heat the water fed into the electric steam mechanism 200, the electric steam mechanism 200 is used to evaporate the fed water, the furnace body heat exchange mechanism 300 uses the heat energy dissipated by the evaporation of water by the electric steam mechanism 200 to continuously preheat the fed water, and the accelerated evaporation mechanism 400 uses the steam generated in the electric steam mechanism 200 to provide kinetic energy for water mixing and preheating.
[0025] The electric steam mechanism 200 includes a liquid storage tank 210, a vertical pipe 260 fixedly installed on the top of the liquid storage tank 210, a steam cylinder 2601 fixedly installed on the top of the vertical pipe 260, an exhaust pipe 2602 fixedly installed on the top of the steam cylinder 2601, and a slot is provided on the outer wall of the steam cylinder 2601. An inlet pipe 220 is fixedly installed on the bottom of the liquid storage tank 210, a return cylinder 230 is installed at the bottom end of the inlet pipe 220, a docking end pipe 240 is installed at the other end of the return cylinder 230, and a plurality of preheating arc pipes 250 are evenly distributed between the inlet pipe 220 and the docking end pipe 240, and the plurality of preheating arc pipes 250 are located in the inner cavity of the return cylinder 230. The preheating arc tube 250 is immersed in high-temperature water in the inner cavity of the return cylinder 230, and the continuously fed liquid is subjected to efficient preheating treatment. The boiler mechanism 100 includes an insulated outer cylinder 110 disposed outside the liquid storage tank 210, with a gap reserved between the insulated outer cylinder 110 and the liquid storage tank 210, two load-bearing washers 120 fixedly installed at the top and bottom of the inner cavity of the insulated outer cylinder 110, and multiple evenly distributed through holes opened inside the load-bearing washers 120, an outer shell 130 fixedly installed outside the insulated outer cylinder 110, and insulation material 140 disposed in the gap; The inner wall of the insulation material 140 is adapted to fit the outer surface of the liquid storage tank 210, and a certain gap is reserved between the outer wall of the insulation material 140 and the inner wall of the insulation outer cylinder 110. The accelerated evaporation mechanism 400 includes a shroud 4101 installed in a slot. Two second studs 4102 are provided on the top of the shroud 4101. A pneumatic impeller 420 is movably installed on the inner end of the shroud 4101, and a drive wheel 4201 is installed on the rod in the middle of the pneumatic impeller 420. A shaft 430 is movably installed on the other end of the shroud 4101. A transmission wheel 4301 is installed on the shaft 430. A sliding column 460 is fixedly installed on the outside of the shaft 430. A sliding sleeve 4601 is movably installed on the outside of the sliding column 460. A guide rod 4602 is inserted into the inside of the sliding sleeve 4601 and engaged in the sliding groove on the outer wall of the sliding column 460. An end plate 470 is fixedly installed on the outer end of the guide rod 4602, and two symmetrically distributed traction rods 4701 are fixedly installed inside the end plate 470. A drive belt 450 is connected to the drive wheel 4201 and the transmission wheel 4301. Two rod sleeves 480 are fixedly installed on the top of the liquid storage tank 210, and two traction rods 4701 are adapted to pass through the two rod sleeves 480. Multiple evenly distributed vibrating pads 490 are fixedly installed on the outside of the two traction rods 4701, and the multiple vibrating pads 490 are located in the inner cavity of the liquid storage tank 210.
[0026] After the external pipe is connected to the docking end pipe 240, the external pipe will input water from the docking end pipe 240 into multiple preheating arc pipes 250. Finally, the water will be transferred from the multiple preheating arc pipes 250 to the inside of the liquid inlet pipe 220. As the water continuously flows into the inner cavity of the liquid storage tank 210 from the liquid inlet pipe 220, the electric heating element pre-installed inside the liquid storage tank 210 will quickly heat until high-temperature steam is generated. When high-temperature steam is continuously released from the vertical pipe 260, steam cylinder 2601 and exhaust pipe 2602, the high-pressure airflow generated by the high-temperature steam will drive the pneumatic impeller 420 and drive wheel 4201. The drive wheel 4201 will drive the transmission belt 450 and transmission wheel 4301. Finally, the shaft 430 and the sliding column 460 will help the guide rod 4602 to move up and down repeatedly. The end plate 470 installed on the outer end of the guide rod 4602 and the two traction rods 4701 will drive multiple vibrating liquid pads 490 to vibrate regularly. At this time, the water that flows into the inner cavity of the liquid storage tank 210 can be efficiently mixed by the multiple vibrating liquid pads 490, thereby accelerating the uniformity of water temperature and increasing the speed of steam generation, further reducing the loss of electrical energy.
[0027] Example 2: Combination Figures 4 to 10As shown, based on Embodiment 1, the furnace heat exchange mechanism 300 includes multiple internal heat exchange pipes 310 installed inside two load-bearing washers 120, a sleeve 320 fixedly installed at the bottom of the multiple internal heat exchange pipes 310, an end pipe 340 fixedly installed at the top of the multiple internal heat exchange pipes 310, a branch pipe 330 installed on the lower surface of the sleeve 320, and the other end of the branch pipe 330 connected to the return cylinder 230. Multiple evenly distributed pads 3401 are fixedly installed inside the end tube 340, and multiple first studs 3402 are provided on the top of the end tube 340. The limiting frame 3403 is fixedly installed on the top of the end tube 340. An outer pipe 350 is fixedly installed on the outside of the end pipe 340, and the outer pipe 350 is located in the middle of the inner cavity of the outer shell 130. The outer shell 130 is used to keep the water circulating in the outer pipe 350 warm.
[0028] Preferably, the number of internal heat exchange pipes 310 can be set according to the heat exchange requirements of the outer surface of the liquid storage tank 210, and the internal heat exchange pipes 310 are U-shaped in general. Specifically, as the water inside the storage tank 210 is continuously heated by the heating element until high-temperature steam is generated, the heat energy released by the water due to the temperature rise to the outside of the storage tank 210 is transferred to the insulation material 140. Finally, the multiple internal heat exchange pipes 310 evenly distributed inside the insulation material 140 can use the heat energy to heat the water circulating in its inner cavity. This process can realize the rapid heat exchange of the storage tank 210 by the multiple internal heat exchange pipes 310, and avoid excessive heat energy from escaping to the outer surface of the insulation outer cylinder 110. After the water transferred by the multiple internal heat exchange pipes 310 is transferred from the end pipe 340 to the inside of the outer pipe 350, the preheated water transferred by the outer pipe 350 to the inner cavity of the return cylinder 230 can rapidly heat the multiple preheating arc pipes 250 evenly distributed. At this time, the water fed in through the multiple preheating arc pipes 250 can be efficiently preheated.
[0029] Example 3: Combination Figures 6 to 11 As shown, in the above embodiment, a base 410 is fixedly installed at the bottom of the protective cover 4101, and the base 410 is installed on the outside of a plurality of first studs 3402. A hydraulic impeller 440 is fixedly installed at the bottom end of the shaft 430, and the hydraulic impeller 440 is located in the inner cavity of the end pipe 340. The hydraulic impeller 440 is used to provide kinetic energy for the circulating flow of preheated water. A frame is connected to the outer wall of the steam cylinder 2601, and two second studs 4102 are installed on the frame by nuts; The top and bottom of the vibrating pad 490 are provided with annular grooves to enhance the mixing pressure of the water in the storage tank 210 and improve the evaporation rate of the mixed water.
[0030] Preferably, the drive wheel 4201, transmission wheel 4301 and transmission belt 450 are only one way to transmit mechanical kinetic energy. According to the actual kinetic energy transmission requirements, the drive wheel 4201 and transmission wheel 4301 can be replaced by gears, and the corresponding transmission belt 450 can be replaced by a chain. The diameter of the cavity at the top of the end tube 340 is the same as the length of the blade of the hydraulic impeller 440. As the pneumatic impeller 420 is assisted by the high-pressure steam flow, the drive wheel 4201 drives the transmission belt 450 and the transmission wheel 4301, while the shaft 430 drives the hydraulic impeller 440 to rotate at a constant speed. Finally, the hydraulic impeller 440 actively transfers the water after heat exchange in its inner cavity. The heated water that is actively transferred can continuously replace the water in the inner cavity of the return cylinder 230, thereby preheating the water continuously fed into the multiple preheating arc tubes 250.
[0031] The working principle and usage process of this invention are as follows: During use, the water stored in the inner cavity of the storage tank 210 is rapidly heated by the heating module until steam is generated. The steam enters the inner cavity of the steam cylinder 2601 through the vertical pipe 260. As the steam is continuously output through the inner cavity of the steam cylinder 2601, the pneumatic impeller 420 and the drive wheel 4201, propelled by the airflow, drive the transmission belt 450 to rotate. The other end of the transmission belt 450 drives the transmission wheel 4301, the shaft 430, and the hydraulic impeller 440. At this time, the hydraulic impeller 440 moves along the end pipe... The inner cavity of 340 rotates at a uniform speed. High-temperature water enters the end tube 340 along the inner cavity of multiple inner heat exchange tubes 310. The high-temperature water in the inner cavity of the end tube 340 is transferred to the interior of the return cylinder 230 along the inner cavity of the outer tube 350. The heat exchanged high-temperature water will quickly and comprehensively preheat multiple evenly distributed preheating arc tubes 250. Multiple preheating arc tubes 250 with small flow rate and increased heating area can quickly and efficiently preheat the continuously input water, thereby reducing the energy consumption of high-temperature evaporation of water entering the storage tank 210 and further improving the thermal efficiency of the boiler system. Meanwhile, the rotating shaft 430 drives the sliding column 460 to rotate, and the limiting frame 3403 provides longitudinal limiting constraint on the sliding sleeve 4601. As the sliding column 460 rotates, the guide rod 4602, which is locked in the sliding groove on the outer wall of the sliding column 460 and is placed horizontally, drives the guide rod 4602 and the end plate 470 to reciprocate and rise and fall. The two traction rods 4701 installed in the end plate 470 drive the evenly distributed multiple vibrating liquid pads 490 to move up and down regularly. The multiple vibrating liquid pads 490 will longitudinally vibrate and agitate the water in the inner cavity of the liquid storage tank 210. The hotter part of the agitated water mixes quickly with the colder part, thereby reducing the heat loss of the evaporation surface and accelerating the uniform distribution of heat energy in the liquid, thereby increasing the evaporation rate of the water in the inner cavity of the liquid storage tank 210. Therefore, the water that has been preheated and continuously fed into the inner cavity of the liquid storage tank 210 can be treated with high efficiency and rapid evaporation, greatly reducing energy consumption and achieving energy-saving effect.
[0032] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A preheating system for an electric steam thermal storage boiler, characterized in that, It includes an electric steam mechanism (200) installed in the boiler mechanism (100), a furnace heat exchange mechanism (300) installed in the boiler mechanism (100), and an accelerated evaporation mechanism (400) installed in the electric steam mechanism (200). The accelerated evaporation mechanism (400) includes a shroud (4101) installed in a slot, two second studs (4102) set on the top of the shroud (4101), a pneumatic impeller (420) movably installed at the inner end of the shroud (4101), a drive wheel (4201) installed on the middle rod of the pneumatic impeller (420), a shaft (430) movably installed at the other end of the shroud (4101), a transmission wheel (4301) installed on the shaft (430), a slide column (460) fixedly installed outside the shaft (430), a sliding sleeve (4601) movably installed outside the slide column (460), a guide rod (4602) inserted into the sliding sleeve (4601) and engaged in the sliding groove on the outer wall of the slide column (460), and an end plate (470) fixedly installed at the outer end of the guide rod (4602). Two symmetrically distributed traction rods (4701) are fixedly installed inside the end plate (470). A transmission belt (450) is connected to the drive wheel (4201) and the transmission wheel (4301).
2. The electric steam thermal storage boiler preheating system according to claim 1, characterized in that, The electric steam mechanism (200) includes a liquid storage tank (210), a vertical pipe (260) is fixedly installed on the top of the liquid storage tank (210), a steam cylinder (2601) is fixedly installed on the top of the vertical pipe (260), an exhaust pipe (2602) is fixedly installed on the top of the steam cylinder (2601), and a slot is provided on the outer wall of the steam cylinder (2601). A frame is connected to the outer wall of the steam cylinder (2601), and two second studs (4102) are installed on the frame by nuts. Two rod sleeves (480) are fixedly installed on the top of the liquid storage tank (210), and two traction rods (4701) are adapted to pass through the two rod sleeves (480). Multiple evenly distributed vibrating pads (490) are fixedly installed on the outside of the two traction rods (4701), and the multiple vibrating pads (490) are located in the inner cavity of the liquid storage tank (210).
3. The electric steam thermal storage boiler preheating system according to claim 2, characterized in that, The boiler mechanism (100) includes an insulated outer cylinder (110) disposed outside the liquid storage tank (210). A gap is reserved between the insulated outer cylinder (110) and the liquid storage tank (210). Insulation material (140) is disposed in the gap. Two load-bearing washers (120) are fixedly installed at the top and bottom of the inner cavity of the insulated outer cylinder (110). The load-bearing washers (120) have multiple evenly distributed through holes inside. An outer shell (130) is fixedly installed on the outside of the insulated outer cylinder (110).
4. The electric steam thermal storage boiler preheating system according to claim 3, characterized in that, The inner wall of the insulation material (140) is adapted to fit the outer surface of the liquid storage tank (210), and a certain gap is reserved between the outer wall of the insulation material (140) and the inner wall of the heat insulation outer cylinder (110).
5. The electric steam thermal storage boiler preheating system according to claim 2, characterized in that, The bottom of the storage tank (210) is fixedly installed with an inlet pipe (220), and a return cylinder (230) is installed at the bottom end of the inlet pipe (220). A connecting pipe (240) is installed at one end of the return cylinder (230). Multiple preheating arc pipes (250) are evenly distributed between the inlet pipe (220) and the connecting pipe (240). The multiple preheating arc pipes (250) are located in the inner cavity of the return cylinder (230). The preheating arc tube (250) is immersed in high-temperature water inside the reflux cylinder (230).
6. The electric steam thermal storage boiler preheating system according to claim 2, characterized in that, The furnace heat exchange mechanism (300) includes multiple internal heat exchange tubes (310) installed inside two load-bearing washers (120), a sleeve (320) fixedly installed at the bottom of the multiple internal heat exchange tubes (310), an end tube (340) fixedly installed at the top of the multiple internal heat exchange tubes (310), and a branch tube (330) installed on the lower surface of the sleeve (320), with the other end of the branch tube (330) connected to the return cylinder (230). The end tube (340) is fixedly installed with a plurality of evenly distributed pads (3401), and the top of the end tube (340) is provided with a plurality of first studs (3402). The limiting frame (3403) is fixedly installed on the top of the end tube (340).
7. The electric steam thermal storage boiler preheating system according to claim 6, characterized in that, An outer tube (350) is fixedly installed on the outside of the end tube (340). The outer tube (350) is located in the middle of the inner cavity of the outer shell (130). The outer shell (130) is used to keep the water circulating in the outer tube (350) warm.
8. The electric steam thermal storage boiler preheating system according to claim 1, characterized in that, The bottom of the protective cover (4101) is fixedly mounted with a base (410), which is mounted on the outside of a plurality of first studs (3402).
9. The electric steam thermal storage boiler preheating system according to claim 1, characterized in that, A hydraulic impeller (440) is fixedly installed at the bottom end of the shaft (430). The hydraulic impeller (440) is located in the inner cavity of the end pipe (340). The hydraulic impeller (440) is used to provide kinetic energy for the circulating flow of preheated water.
10. The electric steam thermal storage boiler preheating system according to claim 2, characterized in that, The top and bottom of the vibrating liquid pad (490) are provided with annular grooves to enhance the mixing pressure of the water in the storage tank (210).