Electrically heated solid heat storage steam generator

Abstract

The utility model discloses a kind of electric heating solid heat storage type steam furnace, it is related to steam furnace technical field.The utility model includes furnace body, the bottom of furnace body is provided with heat storage mechanism, the bottom of heat storage mechanism is provided with evaporation mechanism, the side of evaporation mechanism is provided with frequency conversion high-temperature fan;The heat storage mechanism includes shell, the top of shell is fixedly connected with the bottom of furnace body, and the bottom of shell inner chamber is fixedly connected with heat storage body.The utility model fully utilizes low valley electricity price to store energy by heat storage mechanism, changes traditional steam furnace energy utilization mode, effectively reduces energy cost, efficiently heat storage in electricity low valley period, releases heat energy to produce steam in peak period, and this time-sharing heat storage steam production mode greatly improves energy utilization efficiency, conforms to the trend of energy structure adjustment, simultaneously, the close cooperation of heat storage mechanism and evaporation mechanism ensures the stable supply of steam, meets the steam demand of user in different time periods.

Description

Technical Field

[0001] This utility model belongs to the field of steam furnace technology, and in particular relates to an electrically heated solid heat storage steam furnace. Background Technology

[0002] Steam boilers have wide applications in various fields, including industrial production, commercial operations, and residential life. In industry, they are commonly used in chemical, food processing, and textile printing and dyeing industries to provide the necessary heat energy for production processes. In the commercial sector, hotels, hospitals, schools, and other places rely on steam boilers for heating, hot water supply, and to meet specific process requirements. In residential life, they may also be used for centralized heating. With the adjustment of energy structure and the increasing environmental protection requirements, higher demands are being placed on the energy efficiency, environmental performance, and level of intelligence of steam boilers.

[0003] Traditional steam boilers mostly lack time-of-use heat storage capabilities, making it impossible to utilize off-peak electricity prices for energy storage. Throughout the day, regardless of peak or off-peak electricity consumption, they consume electricity at the same price to generate steam, resulting in high energy costs. Furthermore, traditional steam boilers suffer from significant heat loss due to the lack of effective insulation measures, causing a large amount of heat to dissipate into the surrounding environment during energy conversion and transfer, further reducing energy efficiency.

[0004] To address these issues, we provide an electrically heated solid thermal storage steam furnace. Utility Model Content

[0005] The purpose of this utility model is to provide an electrically heated solid thermal storage steam furnace, which solves the problem that existing electrically heated solid thermal storage steam furnaces do not have time-sharing thermal storage function through the cooperation of the thermal storage mechanism and the evaporation mechanism.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to an electrically heated solid-state thermal storage steam furnace, comprising a furnace body, a heat storage mechanism at the bottom of the furnace body, an evaporation mechanism at the bottom of the heat storage mechanism, and a variable frequency high-temperature fan on one side of the evaporation mechanism; the heat storage mechanism includes a shell, the top of which is fixedly connected to the bottom of the furnace body, and a heat storage body fixedly connected to the bottom of the inner cavity of the shell, the heat storage body being composed of uniformly distributed heat storage bricks, and uniformly distributed electric heating wires penetrating the surface of the heat storage body; the evaporation mechanism includes a water tank, the top of which is fixedly connected to the bottom of the shell, and an array of [unclear - possibly a type of heat storage device] fixedly connected to the inner wall of the water tank. The heat exchange tubes are arranged in rows. The top of the variable frequency high-temperature fan is connected to the bottom of the shell, one side of the variable frequency high-temperature fan is connected to the air inlet side of the heat exchange tube, and the air outlet of the heat exchange tube is connected to the shell. The heat storage mechanism uses off-peak electricity prices to store energy, reducing energy costs and solving the problem of low energy utilization efficiency of traditional steam boilers. The evaporation mechanism works in conjunction with the variable frequency high-temperature fan to efficiently convert the stored heat energy into steam, meeting the user's steam demand. The overall design comprehensively improves the performance of the steam boiler in terms of energy utilization and steam generation, adapting to the modern energy structure adjustment and the user's demand for efficient steam supply.

[0008] The present invention is further configured such that steam delivery pipes are connected to both the front and back of the water tank, and the end of the steam delivery pipe away from the water tank is connected to the furnace body.

[0009] The present invention is further provided that the inner wall of the shell is fixedly connected with a uniformly distributed heat-insulating material.

[0010] The present invention is further configured such that an insulating ceramic tube is provided through one side of the shell, one end of the insulating ceramic tube extends into the inner cavity of the shell and is fixedly connected to the heat storage body, and a heat-resistant conductive body is provided in the inner cavity of the insulating ceramic tube, one end of the heat-resistant conductive body being electrically connected to the heating wire.

[0011] The present invention is further configured such that temperature sensors are provided through both sides of the housing, the two temperature sensors are of the same model and are arranged symmetrically, and the model of the temperature sensors is SC-ASS-IM075G-150-SHX.

[0012] The present invention is further configured such that a water supply pipe is connected to one side of the water tank, and a water sensor switch is installed through the bottom of one side of the water tank. The water supply pipe facilitates the replenishment of water to the water tank, ensuring the continuous evaporation process. The water sensor switch monitors the water level in real time and automatically replenishes water when the water level is low, which greatly improves the safety of equipment operation, avoids safety accidents caused by low water level, and solves the shortcomings of traditional steam boiler water level control.

[0013] The present invention is further configured such that support bases are fixedly connected to both sides of the bottom of the furnace body, a vertical plate is fixedly connected to one side of the furnace body, and an electrical control cabinet is fixedly connected to the side of the vertical plate away from the furnace body.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model utilizes off-peak electricity prices to store energy through a heat storage mechanism, changing the traditional energy utilization method of steam boilers and effectively reducing energy costs. It efficiently stores heat during off-peak electricity periods and releases heat energy to produce steam during peak periods. This time-sharing heat storage and steam production mode greatly improves energy utilization efficiency and conforms to the trend of energy structure adjustment. At the same time, the close cooperation between the heat storage mechanism and the evaporation mechanism ensures a stable supply of steam and meets the user's demand for steam at different times.

[0016] 2. This utility model water-sensing switch realizes real-time monitoring and automatic water replenishment of water level, effectively avoiding safety accidents caused by low water level and significantly improving the safety of equipment operation. The electrical control cabinet, combined with temperature sensors and other components, realizes automated and intelligent control of the equipment, which not only reduces the workload of operators, but also accurately adjusts various parameters to ensure stable steam production and meet the needs of different working conditions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional view of an electrically heated solid thermal storage steam furnace.

[0019] Figure 2 This is a three-dimensional diagram showing the connection between the heat storage mechanism, the evaporation mechanism, and the variable frequency high-temperature fan in an electrically heated solid-state thermal storage steam furnace.

[0020] Figure 3 This is a three-dimensional cross-sectional view of the heat storage mechanism in an electrically heated solid-state thermal storage steam furnace.

[0021] Figure 4 This is a three-dimensional view of the heat storage body in an electrically heated solid-state thermal storage steam furnace.

[0022] Figure 5 This is a three-dimensional cross-sectional view of the evaporation mechanism in an electrically heated solid-state thermal storage steam furnace.

[0023] In the attached diagram: 1. Furnace body; 2. Heat storage mechanism; 3. Evaporation mechanism; 4. Variable frequency high-temperature fan; 21. Shell; 22. Heat storage body; 23. Heating wire; 31. Water tank; 32. Heat exchange tube; 33. Steam delivery pipe; 211. Insulation material; 212. Insulating ceramic tube; 213. Heat-resistant conductive material; 5. Temperature sensor; 311. Water supply pipe; 312. Water sensor switch; 6. Support base; 7. Vertical plate; 8. Electrical control cabinet. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0025] Please see Figure 1-5 This utility model is an electrically heated solid-state thermal storage steam furnace, including a furnace body 1, a heat storage mechanism 2 at the bottom of the furnace body 1, an evaporation mechanism 3 at the bottom of the heat storage mechanism 2, and a variable frequency high-temperature fan 4 on one side of the evaporation mechanism 3; the heat storage mechanism 2 includes a shell 21, the top of the shell 21 is fixedly connected to the bottom of the furnace body 1, and a heat storage body 22 is fixedly connected to the bottom of the inner cavity of the shell 21. The heat storage body 22 is composed of uniformly distributed heat storage bricks, and uniformly distributed electric heating wires 23 are arranged through the surface of the heat storage body 22; the evaporation mechanism 3 includes a water tank 31, the top of the water tank 31 is fixedly connected to the bottom of the shell 21, and an array of heat exchange tubes 32 are fixedly connected to the inner wall of the water tank 31. The top of the variable frequency high-temperature fan 4 is connected to the bottom of the shell 21, one side of the variable frequency high-temperature fan 4 is connected to the air inlet side of the heat exchange tube 32, and the air outlet of the heat exchange tube 32 is connected to the shell 21.

[0026] Specifically: the heat storage mechanism 2 uses off-peak electricity prices to store energy, reducing energy costs and solving the problem of low energy utilization efficiency of traditional steam boilers. The evaporation mechanism 3 works in conjunction with the variable frequency high-temperature fan 4 to efficiently convert the stored heat energy into steam, meeting the user's steam demand. The overall design comprehensively improves the performance of the steam boiler in terms of energy utilization and steam generation, adapting to the modern energy structure adjustment and the user's demand for efficient steam supply. Example 2

[0027] Please see Figure 1-5 Based on Embodiment 1, steam delivery pipes 33 are connected to both the front and back of the water tank 31. The end of the steam delivery pipe 33 away from the water tank 31 is connected to the furnace body 1. A uniformly distributed heat-insulating material 211 is fixedly connected to the inner wall of the shell 21. An insulating ceramic tube 212 is installed through one side of the shell 21. One end of the insulating ceramic tube 212 extends into the inner cavity of the shell 21 and is fixedly connected to the heat storage body 22. A heat-resistant conductive body 213 is installed in the inner cavity of the insulating ceramic tube 212. One end of the heat-resistant conductive body 213 is connected to the heating wire. 23 Electrical connection, temperature sensor 5 is installed through both sides of the housing 21, the two temperature sensors 5 are the same model and are symmetrically arranged, the model of temperature sensor 5 is SC-ASS-IM075G-150-SHX, water tank 31 is connected to one side of the water tank 31 by water pipe 311, water sensor switch 312 is installed through the bottom of one side of the water tank 31, support base 6 is fixedly connected to both sides of the bottom of the furnace body 1, vertical plate 7 is fixedly connected to one side of the furnace body 1, and electrical control cabinet 8 is fixedly connected to the side of the vertical plate 7 away from the furnace body 1.

[0028] Specifically: Steam delivery pipe 33 smoothly delivers the steam generated by evaporation mechanism 3 to furnace body 1, improving the steam production and application process, ensuring that steam can be used by users in a timely and effective manner, guaranteeing the normal operation of the steam furnace, and meeting practical application needs. The insulation material 211 on the inner wall of shell 21 significantly reduces heat loss during the heat storage process, improves the heat storage efficiency of heat storage mechanism 2, reduces energy consumption, further demonstrating the advantages of this steam furnace in energy utilization, and conforming to the development trend of energy conservation and consumption reduction. The insulating ceramic tube 212 ensures good insulation between heating wire 23 and shell 21, preventing current leakage, ensuring the safety of operators and equipment, and at the same time, providing protection for heat-resistant conductive material 213, extending its service life, and improving the reliability and stability of heat storage mechanism 2. Temperature sensor 5 monitors the shell in real time. The internal temperature of the body 21 provides accurate temperature data for the electrical control cabinet 8, enabling the electrical control cabinet 8 to precisely adjust the heating power of the heating wire 23 and achieve intelligent control of the heat storage process. This helps maintain the stability of the heat storage process, improves energy utilization efficiency, and ensures that the steam boiler can operate efficiently under different working conditions. The water supply pipe 311 facilitates the replenishment of water to the water tank 31, ensuring the continuous evaporation process. The water sensor switch 312 monitors the water level in real time and automatically replenishes water when the water level is low, greatly improving the safety of equipment operation and avoiding safety accidents caused by low water levels. This solves the shortcomings of traditional steam boiler water level control. The support base 6 provides stable support for the steam boiler, ensuring that the equipment will not be displaced or damaged due to vibration or external force during operation, ensuring the normal operation of all components. The setting of the vertical plate 7 and the electrical control cabinet 8 facilitates centralized control of the equipment.

[0029] The working principle of this utility model is as follows: During off-peak electricity consumption periods, the heat storage mechanism 2 plays a crucial role. The top of the shell 21 of the heat storage mechanism 2 is connected to the bottom of the furnace body 1. A heat storage body 22 composed of uniformly distributed heat storage bricks is fixed at the bottom of the inner cavity of the shell 21. The heat storage body 22 typically uses magnesia bricks or high-alumina bricks as the heat storage medium. Heating wires 23 are uniformly installed through the surface of the heat storage body 22. At this time, the current is transmitted to the heating wires 23 through the heat-resistant conductive body 213 inside the insulating ceramic tube 212, causing them to heat up. As the heating wires 23 continue to heat up, the temperature of the heat storage body 22 continuously rises, thereby converting electrical energy into heat energy and storing it. When peak electricity consumption periods arrive, the heat storage... The stored heat energy in mechanism 2 begins to be released, and the variable frequency high-temperature fan 4 starts, blowing the hot air in the shell 21 into the heat exchange tubes 32 arrayed on the inner wall of the water tank 31 of the evaporation mechanism 3. The hot air flows in the heat exchange tubes 32 and fully exchanges heat with the water in the water tank 31, causing the water to heat up and evaporate to produce steam. The generated steam is transported to the furnace body 1 through the steam delivery pipe 33 connecting the front and back of the water tank 31 to meet the user's steam usage needs. During this process, the water filling pipe 311 on one side of the water tank 31 can replenish water in time to ensure that the evaporation process continues. The water sensor switch 312 is used to monitor the water level in real time and automatically replenish water when the water level is low, which improves safety.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. An electrically heated solid-state thermal storage steam furnace, comprising a furnace body (1), characterized in that: The furnace body (1) is provided with a heat storage mechanism (2) at the bottom, and an evaporation mechanism (3) is provided at the bottom of the heat storage mechanism (2). A variable frequency high temperature fan (4) is provided on one side of the evaporation mechanism (3). The heat storage mechanism (2) includes a shell (21), the top of the shell (21) is fixedly connected to the bottom of the furnace body (1), and a heat storage body (22) is fixedly connected to the bottom of the inner cavity of the shell (21). The heat storage body (22) is composed of uniformly distributed heat storage bricks, and uniformly distributed electric heating wires (23) are arranged through the surface of the heat storage body (22). The evaporation mechanism (3) includes a water tank (31), the top of which is fixedly connected to the bottom of the shell (21), and an array of heat exchange tubes (32) are fixedly connected to the inner wall of the water tank (31). The top of the variable frequency high temperature fan (4) is connected to the bottom of the shell (21), one side of the variable frequency high temperature fan (4) is connected to the air inlet side of the heat exchange tube (32), and the air outlet of the heat exchange tube (32) is connected to the shell (21).

2. The electrically heated solid-state thermal storage steam furnace according to claim 1, characterized in that: The water tank (31) is connected to a steam delivery pipe (33) on both the front and back sides. The end of the steam delivery pipe (33) away from the water tank (31) is connected to the furnace body (1).

3. The electrically heated solid-state thermal storage steam furnace according to claim 1, characterized in that: The inner wall of the shell (21) is fixedly connected with a uniformly distributed thermal insulation material (211).

4. The electrically heated solid-state thermal storage steam furnace according to claim 1, characterized in that: An insulating ceramic tube (212) is provided through one side of the housing (21). One end of the insulating ceramic tube (212) extends into the inner cavity of the housing (21) and is fixedly connected to the heat storage body (22). A heat-resistant conductive body (213) is provided in the inner cavity of the insulating ceramic tube (212). One end of the heat-resistant conductive body (213) is electrically connected to the heating wire (23).

5. The electrically heated solid-state thermal storage steam furnace according to claim 1, characterized in that: Temperature sensors (5) are provided through both sides of the housing (21). The two temperature sensors (5) are of the same model and are arranged symmetrically. The model of the temperature sensor (5) is SC-ASS-IM075G-150-SHX.

6. The electrically heated solid-state thermal storage steam furnace according to claim 1, characterized in that: A water inlet pipe (311) is connected to one side of the water tank (31), and a water sensor switch (312) is installed through the bottom of one side of the water tank (31).

7. The electrically heated solid-state thermal storage steam furnace according to claim 1, characterized in that: The furnace body (1) has support bases (6) fixedly connected to both sides of the bottom, and a vertical plate (7) fixedly connected to one side of the furnace body (1). An electrical control cabinet (8) is fixedly connected to the side of the vertical plate (7) away from the furnace body (1).

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