Efficient energy-saving electrode steam boiler

Abstract

The utility model discloses an efficient energy -conserving electrode formula steam boiler belongs to boiler equipment technical field, and its purpose is to solve the problem of uneven heating of the existing steam boiler and the energy waste caused by the cold water supplement, including steam tank, its bottom is installed with electrode heater, and the top is connected with the air outlet pipe, and the side is connected with the water inlet pipe, and the steam tank inside is provided with stirring subassembly and energy -consaving subassembly, and stirring subassembly includes the reciprocating pull -out board driven by air cylinder, and the pull -out board is rotatably connected with the fan, and energy -consaving subassembly includes the water inlet bin fixed in the jar, and the water inlet bin inside is provided with multilayer baffle with the water -passing mouth to constitute the preheating flow channel. The utility model discloses through stirring subassembly forced stirring water body to balance water temperature, and through energy -consaving subassembly to the cold water of supplement preheats, and the both synergies, and the heating efficiency and energy utilization rate have been improved significantly, and the heat shock is avoided, and the stability of steam output is guaranteed, and the compact structure is energy -conserving effect is remarkable.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment technology, and in particular to a high-efficiency and energy-saving electrode-type steam boiler. Background Technology

[0002] Steam boilers are important heat energy supply equipment in industrial production and civil applications, and their operating efficiency and energy consumption are key indicators for measuring their performance. Traditional steam boilers typically heat the water inside the tank through a bottom heating device to generate steam.

[0003] In actual operation, due to the poor thermal conductivity of water and the lack of effective disturbance, it is difficult to achieve rapid and uniform heat transfer by relying solely on natural convection. This often results in excessively high water temperatures near the electrode heater, while the water temperature rises slowly in areas far from the electrode heater, creating a significant water temperature stratification phenomenon. This not only reduces the overall heating efficiency but may also affect the service life of the heating equipment due to localized overheating.

[0004] More importantly, to maintain a continuous steam supply, the boiler needs to be periodically replenished with cold water. When a large amount of cold water is directly injected into the high-temperature boiler, it mixes violently with the hot water in the tank, causing a sudden drop in the overall water temperature. This thermal shock not only interrupts the stable generation of steam, but also requires the heating system to consume additional energy to reheat the mixed water to its boiling point, resulting in significant energy waste and reducing the overall energy efficiency of the boiler.

[0005] Therefore, this utility model proposes a high-efficiency and energy-saving electrode-type steam boiler to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a high-efficiency and energy-saving electrode-type steam boiler, which aims to improve the problems of uneven heating and low thermal efficiency caused by insufficient water mixing, as well as thermal shock and energy waste caused by direct cold water replenishment in the existing steam boiler.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency and energy-saving electrode steam boiler, comprising a steam tank, an electrode heater installed at the bottom of the steam tank, an exhaust pipe connected to the top of the steam tank, and a water inlet pipe connected to the side of the steam tank; and a stirring assembly and an energy-saving assembly disposed inside the steam tank. The mixing component includes a slide rail, a pull plate, and a cylinder, while the energy-saving component includes a water inlet tank. Furthermore, the slide rail is fixed inside the steam tank, the pull plate is slidably connected to the slide rail, a fan is rotatably connected to the pull plate, and a heat-absorbing copper pipe is fixedly connected to the outer surface of the pull plate. The cylinder is installed outside the steam tank, and the output end of the cylinder passes through the tank wall of the steam tank in a sealed manner and is fixedly connected to the pull plate to drive the pull plate to reciprocate along the slide rail. The water inlet is fixed to the inner wall of the steam tank. The top of the water inlet is provided with a water inlet that communicates with the water inlet pipe, and the bottom of the water inlet is provided with a water outlet that communicates with the inside of the steam tank. The inside of the water inlet is provided with multiple layers of partitions, and water through holes are opened on the partitions to form a preheating channel for cold water to flow from top to bottom. Preferably, the energy-saving component also includes a heat transfer column, which is vertically arranged inside the steam tank and has its outer wall thermally connected to the side wall of the water inlet chamber. This structure, by adding an additional heat absorber, expands the range of heat absorption from the high-temperature water inside the steam tank and efficiently conducts the heat to the water inlet chamber, further enhancing the preheating effect on cold water. Preferably, a heat transfer plate is also fixedly connected to the outer wall of the heat transfer column. The addition of the heat transfer plate significantly increases the contact area between the heat transfer column and the high-temperature water, improves the heat absorption efficiency, and thus makes the heat capture capacity of the entire composite heat exchange structure stronger. Preferably, the water inlets on two adjacent partitions inside the water inlet chamber are staggered horizontally. This staggered layout forces the cold water to form a zigzag flow path inside the water inlet chamber, which greatly extends the flow distance and residence time of the cold water in the chamber, ensuring that the cold water can have more sufficient heat exchange with the chamber wall before flowing out. Preferably, the stirring assembly is positioned above the electrode heater. This arrangement allows the rising heat flow generated by the electrode heater to be immediately dispersed and agitated laterally by the stirring assembly, effectively preventing heat accumulation at the bottom and promoting rapid temperature equalization of the water throughout the tank. Preferably, the steam boiler also includes an operating platform, which is fixed to the outer wall of the steam tank. This operating platform provides workers with a safe and convenient climbing and operating platform, facilitating routine maintenance and repair of the equipment on top of the boiler. Preferably, the inlet is located at the highest point of the inlet chamber and the outlet is located at the lowest point of the inlet chamber. This top-inlet and bottom-outlet structural design follows the gravity flow trend of the water body, ensuring that cold water can smoothly fill and flow through the entire preheating channel, avoiding poor preheating effect caused by air blockage or poor flow. Preferably, the heat-absorbing copper tube is made of copper, and the excellent thermal conductivity of copper allows the heat-absorbing copper tube to quickly exchange heat with the surrounding water during reciprocating motion.

[0008] This utility model has the following beneficial effects: 1. This utility model solves the problem of uneven heating and low thermal efficiency caused by water stagnation in existing steam boilers by setting a reciprocating pull plate driven by a cylinder and rotating a stirring assembly connected to a fan on the pull plate, thereby achieving the technical effect of forced convection and rapid temperature uniformity.

[0009] 2. This utility model, by setting up an energy-saving component with an internal multi-layered partition and staggered water inlets in the water inlet chamber, and forming a composite heat exchange structure with the external heat transfer column and heat transfer plate, solves the problem of thermal shock and energy waste caused by direct cold water replenishment in the prior art, and achieves the technical effect of efficient preheating of replenished cold water, stable steam output and significant energy saving.

[0010] 3. This utility model integrates the stirring component and the energy-saving component inside the steam tank to work together, making the entire equipment structure compact and highly coupled in function. Compared with external stirring or preheating equipment, it further optimizes the spatial layout and reduces the complexity of the system. Attached Figure Description

[0011] Figure 1 This is a perspective view of a high-efficiency and energy-saving electrode-type steam boiler proposed in this utility model. Figure 2 A schematic diagram of the cylinder of an efficient and energy-saving electrode-type steam boiler proposed in this utility model. Figure 3 This is a schematic diagram of the pull plate of a high-efficiency and energy-saving electrode-type steam boiler proposed in this utility model; Figure 4 This is a schematic diagram of the heat transfer column of a high-efficiency and energy-saving electrode-type steam boiler proposed in this utility model.

[0012] Legend: 1. Electrode heater; 2. Operating table; 3. Water inlet pipe; 4. Air outlet pipe; 5. Steam tank; 6. Stirring assembly; 601. Fan; 602. Heat-absorbing copper pipe; 603. Pull plate; 604. Slide rail; 605. Cylinder; 7. Energy-saving component; 701. Water inlet; 702. Water inlet; 703. Heat transfer column; 704. Heat transfer plate; 705. Water outlet; 706. Water outlet. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Reference Figures 1-4 An embodiment of this utility model is provided: a high-efficiency and energy-saving electrode steam boiler, including a steam tank 5 as the main body of the equipment. An electrode heater 1 for heating the water in the tank is installed at the bottom of the steam tank 5. An exhaust pipe 4 for discharging steam is connected to the top of the steam tank 5. An inlet pipe 3 for replenishing cold water is also connected to the side of the steam tank 5. The steam tank 5 is innovatively equipped with a stirring component 6 and an energy-saving component 7. The stirring component 6 is used to forcibly stir the water to equalize the water temperature, and the energy-saving component 7 is used to preheat the incoming cold water. The two work together to improve heating efficiency and save energy. Specifically, the stirring assembly 6 is used to achieve forced convection and disturbance of the water inside the steam tank 5 during the heating process; this stirring assembly 6 includes a slide rail 604 fixed along the inside of the steam tank 5, and a pull plate 603 that can slide along the slide rail 604. A fan 601 is rotatably connected to the pull plate 603, and a heat-absorbing copper tube 602 is also fixedly connected to the outer surface of the pull plate 603; to drive the pull plate 603 to move, the stirring assembly 6 also includes a cylinder 605 installed outside the steam tank 5. The output end of the cylinder 605 passes through the wall of the steam tank 5 in a sealed manner and is fixedly connected to the pull plate 603. When the cylinder 605 works periodically, its output end drives the pull plate 603 to reciprocate along the extension direction of the slide rail 604, thereby agitating the water inside the entire steam tank 5. During this process, the resistance of the water flow will drive the fan 601, which is rotatably connected to the pull plate 603, to rotate, further aggravating the water flow and promoting rapid and uniform water temperature. At the same time, the heat-absorbing copper tube 602 is immersed in hot water for heat exchange. Meanwhile, the energy-saving component 7 is used to efficiently preheat the cold water before it flows into the main heating zone. This energy-saving component 7 includes a water inlet chamber 701 fixed to the inner wall of the steam tank 5. The top of the water inlet chamber 701 is provided with a water inlet 702, which is connected to the external water inlet pipe 3 to receive cold water. The bottom of the water inlet chamber 701 is provided with a water outlet 706, which is connected to the internal main heating zone of the steam tank 5. In order to extend the preheating time, multiple layers of partitions are provided inside the water inlet chamber 701 along its height direction. Each layer of partitions is provided with a water through-hole 705. This structure allows the cold water entering from the water inlet 702 to flow from top to bottom in the water inlet chamber 701 along a tortuous path formed by the multiple layers of partitions and the water through-hole 705. Thus, before flowing out of the water outlet 706, it can fully exchange heat with the high-temperature water inside the steam tank 5, achieving a significant preheating effect. The heat transfer column 703 is a metal column with excellent thermal conductivity. It is vertically installed inside the steam tank 5, and its outer wall is thermally connected to the side wall of the water inlet 701. Specifically, a heat transfer plate 704 is fixedly connected to the outer wall of the heat transfer column 703. The heat transfer plate 704 extends radially from the heat transfer column 703 to increase the contact area with the high-temperature water inside the steam tank 5. The heat transfer column 703 is fixedly installed in the inner cavity of the steam tank 5. Its function is to act as the main heat absorber, absorb the heat of the hot water inside the steam tank 5, and efficiently conduct the heat to the water inlet 701 in contact with it. Meanwhile, the water inlet chamber 701, as a shell enclosing the preheating flow channel, has its inner wall and multiple partitions defining the tortuous preheating flow channel, while its outer wall is in close contact with the heat transfer column 703 and the heat transfer plate 704. In the assembled state, the water inlet chamber 701, the heat transfer column 703, and the heat transfer plate 704 together constitute a composite heat exchange structure. This composite heat exchange structure, which combines the internal tortuous flow channel with the external large-area heat absorption structure, ensures that when cold water flows inside the water inlet chamber 701, it can not only absorb heat through the chamber wall, but also indirectly obtain heat absorbed by the heat transfer column 703 and the heat transfer plate 704 from a wider area inside the tank through the thermally conductive connection with the heat transfer column 703, which greatly improves the preheating efficiency. For the power source that drives the reciprocating motion of the pull plate 603, this embodiment preferably uses a cylinder 605, which drives the piston rod to extend and retract by alternately filling and discharging compressed air into the cylinder cavity, thereby driving the pull plate 603 to move. Those skilled in the art can also use other linear drive devices such as hydraulic cylinders or electric push rods as needed. The specific internal structure and control method are well known in the art and will not be described in detail here. In a preferred embodiment, to extend the flow path of cold water within the inlet chamber 701 and thus obtain a longer preheating time, the water inlets 705 on adjacent partitions within the inlet chamber 701 are staggered horizontally. Specifically, if the water inlet 705 of the first partition is located on its left side, then the water inlet 705 of the adjacent second partition is located on its right side, and the third partition is located on its left side, and so on, alternatingly, forcing the water flow to form an "S"-shaped zigzag flow path within the inlet chamber 701, significantly extending the heat exchange time between the water flow and the chamber wall and partitions. As another preferred embodiment, in order to optimize the stirring effect, the stirring component 6 is preferably arranged above the electrode heater 1. This arrangement allows the rising heat flow generated by the electrode heater 1 to be effectively dispersed and stirred laterally by the reciprocating pull plate 603 and the fan 601 it drives, avoiding local overheating and allowing the heat at the bottom of the entire steam tank 5 to diffuse more quickly to the entire water body. As another preferred embodiment, in order to facilitate equipment maintenance and valve operation by the staff, the steam boiler also includes an operating platform 2, which is preferably a metal ladder structure and is fixed to the outer wall of the steam tank 5 by welding; the setting of the operating platform 2 provides a safe and stable climbing path. As another preferred embodiment, in order to further clarify the flow direction of cold water in the preheating channel, the inlet 702 is preferably located at the highest point of the inlet chamber 701, while the outlet 706 is located at the lowest point of the inlet chamber 701. This top-in, bottom-out structural design, combined with the gravity of the water itself, ensures that the cold water can flow smoothly from top to bottom through the entire preheating channel, avoiding the problems of air blockage or poor flow. As a more specific implementation, in order to take advantage of the excellent thermal conductivity of the material itself, the heat-absorbing copper tube 602 is preferably made of copper or a copper alloy.

[0015] Working Principle: When the equipment needs to be started, cold water first enters the energy-saving component 7 through the inlet pipe 3 and flows in from the inlet 702 located at the top of the inlet chamber 701. Due to the multi-layered baffles with staggered water inlets 705 inside the inlet chamber 701, the cold water is forced to form a tortuous flow path from top to bottom within the chamber. During this process, the cold water continuously absorbs heat from the existing hot water inside the steam tank 5 through the chamber wall of the inlet chamber 701, and through the heat transfer columns 703 and heat transfer plates 704 connected to them. The heat transfer columns 703 and heat transfer plates 704, as highly efficient heat-absorbing structures, transfer heat to the inlet chamber 701, thus fully preheating the cold water. Finally, the preheated water flows out from the outlet 706 at the bottom and merges into the main heating zone of the steam tank 5. Meanwhile, the electrode heater 1 located at the bottom of the steam tank 5 is activated to heat the water inside the tank. To equalize the water temperature, the cylinder 605 installed outside the steam tank 5 begins to operate periodically. The output end of the cylinder 605 drives the pull plate 603, which is fixedly connected to it, to slide back and forth on the slide rail 604. The reciprocating motion of the pull plate 603 produces a strong forced agitation effect on the entire water body. Since a fan 601 is rotatably connected to the pull plate 603, the water flow drives the fan 601 to rotate as it flows over the pull plate 603. This rotational motion further intensifies the turbulence of the water body, allowing heat to be distributed more quickly and evenly, avoiding local overheating. The heat-absorbing copper pipe 602 fixed to the pull plate 603 also moves along with the water during this process and exchanges heat with it. Once steam is generated, operators can perform relevant operations via the control panel 2 fixed to the outer wall of the steam tank 5, and discharge the required steam through the exhaust pipe 4 at the top. Through the preheating effect of the energy-saving component 7 and the forced temperature equalization effect of the stirring component 6, this invention solves the problems of thermal shock and uneven heating caused by cold water replenishment in existing boilers, significantly improving energy utilization efficiency and the stability of steam generation.

Claims

1. A high-efficiency and energy-saving electrode-type steam boiler, comprising a steam tank (5), an electrode heater (1) installed at the bottom of the steam tank (5), an exhaust pipe (4) connected to the top of the steam tank (5), and a water inlet pipe (3) connected to the side of the steam tank (5). Its features are, The steam boiler also includes a stirring assembly (6) and an energy-saving assembly (7) disposed inside the steam tank (5). The stirring assembly (6) includes a slide rail (604), a pull plate (603), and a cylinder (605). The slide rail (604) is fixed inside the steam tank (5). The pull plate (603) is slidably connected to the slide rail (604). A fan (601) is rotatably connected to the pull plate (603), and a heat-absorbing copper tube (602) is fixedly connected to the outer surface of the pull plate (603). The cylinder (605) is installed outside the steam tank (5). The output end of the cylinder (605) passes through the tank wall of the steam tank (5) in a sealed manner and is fixedly connected to the pull plate (603) to drive the pull plate (603) to reciprocate along the slide rail (604). The energy-saving component (7) includes a water inlet chamber (701), which is fixed to the inner wall of the steam tank (5). The top of the water inlet chamber (701) is provided with a water inlet (702) that communicates with the water inlet pipe (3), and the bottom of the water inlet chamber (701) is provided with a water outlet (706) that communicates with the interior of the steam tank (5). The interior of the water inlet chamber (701) is provided with multiple partitions, and water through-holes (705) are provided on the partitions to form a preheating channel for cold water to flow from top to bottom.

2. The high-efficiency and energy-saving electrode-type steam boiler according to claim 1, characterized in that: The energy-saving component (7) also includes a heat transfer column (703), which is vertically arranged inside the steam tank (5) and its outer wall is thermally connected to the side wall of the water inlet (701).

3. The high-efficiency and energy-saving electrode-type steam boiler according to claim 2, characterized in that: A heat transfer plate (704) is also fixedly connected to the outer wall of the heat transfer column (703).

4. The high-efficiency and energy-saving electrode-type steam boiler according to claim 1, characterized in that: The water inlets (705) on the two adjacent partitions inside the water inlet chamber (701) are staggered in the horizontal direction.

5. The high-efficiency and energy-saving electrode-type steam boiler according to claim 1, characterized in that: The stirring assembly (6) is positioned above the electrode heater (1).

6. The high-efficiency and energy-saving electrode-type steam boiler according to claim 1, characterized in that: The steam boiler also includes an operating platform (2), which is fixed to the outer wall of the steam tank (5).

7. The high-efficiency and energy-saving electrode-type steam boiler according to claim 1, characterized in that: The inlet (702) is located at the highest point of the inlet chamber (701), and the outlet (706) is located at the lowest point of the inlet chamber (701).

8. The high-efficiency and energy-saving electrode-type steam boiler according to claim 1, characterized in that: The heat-absorbing copper tube (602) is made of copper.

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