A heat recovery electric boiler

Abstract

The utility model discloses a kind of heat recovery electric boiler, it is related to boiler equipment field, including electric boiler main body, the bottom end of the electric boiler main body is fixedly connected with support mechanism, the inside of the electric boiler main body is also fixedly connected with recovery mechanism, by setting heat exchange copper pipe, liquid inlet pipe, liquid outlet pipe and the like component, solve because traditional electric boiler is not set special heat recovery device, waste heat in backwater cannot be effectively utilized, leading to electric heating element needs to consume more electric energy to heat backwater to set temperature, not only energy utilization is low, also increase the operation cost of user's problem, by the fit of heat exchange copper pipe and electric boiler main body inner container and the communication relationship of liquid inlet pipe, liquid outlet pipe and heat exchange copper pipe, so that heat exchange copper pipe can be absorbed by heat conduction to the waste heat of hot water in electric boiler main body inner container, the device can preheat new incoming to be heated liquid by recovering waste heat in backwater.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment, and in particular to a heat recovery electric boiler. Background Technology

[0002] An electric boiler is a heating device that uses electricity as its energy source to heat water into hot water or steam through electric heating elements. It is widely used in industrial production, commercial buildings, and residential buildings.

[0003] In traditional electric boilers, the temperature of hot water drops after being used by the heat-consuming equipment, but some residual heat remains. This wastewater is usually directly returned to the boiler for reheating. Since traditional electric boilers do not have a dedicated heat recovery device, the waste heat in the return water cannot be effectively utilized. This causes the electric heating element to consume more electricity to heat the return water to the set temperature, resulting in low energy efficiency and increased operating costs for users. Therefore, this utility model provides a heat recovery electric boiler. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heat recovery electric boiler, which solves the problem mentioned in the background art that, due to the lack of a dedicated heat recovery device in traditional electric boilers, the waste heat in the return water cannot be effectively utilized, resulting in the electric heating element needing to consume more electrical energy to heat the return water to the set temperature, which not only leads to low energy utilization but also increases the user's operating costs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a heat recovery electric boiler, including an electric boiler body, a support mechanism fixedly connected to the bottom end of the electric boiler body, a recovery mechanism fixedly connected inside the electric boiler body, a covering mechanism installed at the top end of the electric boiler body, and the support mechanism including support legs and a lower mounting plate.

[0006] As a further technical solution of this utility model, the support leg is provided in three places, and the three support legs are fixedly arranged in a ring array at the bottom end of the electric boiler body, and the lower mounting plate is fixedly arranged at the top end of the electric boiler body.

[0007] As a further technical solution of this utility model, the support mechanism also includes mounting holes and insulation cavities, and the lower mounting plate has an annular structure with a diameter larger than that of the electric boiler body.

[0008] As a further technical solution of this utility model, the mounting hole annular array is opened in the lower mounting plate, the heat insulation cavity is opened in the interior of the electric boiler body, and the top of the heat insulation cavity is a one-way through mechanism.

[0009] As a further technical solution of this utility model, the recycling mechanism includes a heat exchange copper tube, which is fixedly installed in the heat-insulating cavity. The heat exchange copper tube has a spiral structure, and the inner wall of the heat exchange copper tube is in contact with the inner liner of the electric boiler body.

[0010] As a further technical solution of this utility model, the recycling mechanism also includes an inlet pipe and an outlet pipe. The inlet pipe is fixedly installed at one end of the heat exchange copper tube and passes through the electric boiler body to the outside. The outlet pipe is fixedly installed at one end of the heat exchange copper tube and is located below the inlet pipe.

[0011] As a further technical solution of this utility model, the liquid outlet pipe passes through the main body of the electric boiler to the outside, and control valves are installed inside both the liquid outlet pipe and the liquid inlet pipe.

[0012] As a further technical solution of this utility model, the covering mechanism includes an upper cover plate, an upper mounting plate and a fixing bolt. The upper cover plate is fixedly disposed on the top of the electric boiler body, the upper mounting plate is fixedly disposed on the outer wall of the upper cover plate and located directly above the lower mounting plate, and the fixing bolt is fixedly disposed inside the upper mounting plate and the lower mounting plate.

[0013] This utility model provides a heat recovery electric boiler, which has the following advantages compared with the prior art: 1. This design discloses a heat recovery electric boiler. By setting up components such as heat exchange copper tubes, liquid inlet pipes, and liquid outlet pipes, and through the close fit between the heat exchange copper tubes and the inner tank of the electric boiler body, as well as the connection between the liquid inlet pipes and the liquid outlet pipes and the heat exchange copper tubes, the heat exchange copper tubes can absorb the waste heat of the hot water in the inner tank of the electric boiler body through heat conduction. This device can preheat the newly entered liquid to be heated by recovering the waste heat in the return water, effectively utilizing the waste heat that is not utilized in traditional electric boilers, and solving the technical problem of low energy utilization rate of traditional electric boilers.

[0014] 2. This design of a heat recovery electric boiler, through the setting of components such as an insulated cavity, an upper cover plate, an upper mounting plate, a lower mounting plate, and fixing bolts, and through the cooperation of the heat insulation effect of the insulated cavity and the sealing structure formed by the upper cover plate, upper mounting plate, lower mounting plate, and fixing bolts, makes it difficult for heat to be lost from the main body of the electric boiler. This device can further improve the heat recovery effect by reducing heat loss, reduce the power consumption required for the electric heating element to heat water to the set temperature, and solve the technical problem of high operating cost of traditional electric boilers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cross-section and disassembled rearward tilted side view of a heat recovery electric boiler; Figure 2 This is a schematic diagram of the overall front view of a heat recovery electric boiler. Figure 3 This is a schematic diagram of the combined structure of the main body and the insulation cavity of a heat recovery electric boiler. Figure 4 This is a schematic diagram of the combined structure of heat exchange copper tubes and liquid inlet pipe in a heat recovery electric boiler. Figure 5 This is a schematic diagram of the overall front structure of a heat recovery electric boiler. Figure 6 This is a schematic diagram of the front view of a heat recovery electric boiler after sectional cutting.

[0016] In the diagram: 1. Main body of electric boiler; 101. Support leg; 1011. Lower mounting plate; 1012. Mounting hole; 1013. Insulation cavity; 2. Heat exchange copper tube; 201. Liquid inlet pipe; 2011. Liquid outlet pipe; 3. Upper cover plate; 301. Upper mounting plate; 3011. Fixing bolt. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 6 This utility model provides a heat recovery electric boiler technical solution, including an electric boiler body 1, a support mechanism fixedly connected to the bottom of the electric boiler body 1, a recovery mechanism fixedly connected inside the electric boiler body 1, and a covering mechanism installed at the top of the electric boiler body 1. The support mechanism includes support legs 101 and a lower mounting plate 1011. By adopting the structure of the electric boiler body 1, support mechanism, recovery mechanism, and covering mechanism, and the support mechanism including support legs 101 and lower mounting plate 1011, the basic functional layout of stable support, waste heat recovery, and top protection of the electric boiler body 1 is realized. like Figure 3 As shown, there are three support legs 101. The three support legs 101 are fixedly arranged in a ring array at the bottom of the electric boiler body 1. The lower mounting plate 1011 is fixedly arranged at the top of the electric boiler body 1. By adopting the structure of three support legs 101 fixed in a ring array at the bottom of the electric boiler body 1 and the lower mounting plate 1011 fixed at the top of the electric boiler body 1, the bottom of the electric boiler body 1 is evenly stressed and placed stably, while providing an installation foundation for the top covering mechanism.

[0019] like Figure 2As shown, the support mechanism also includes mounting holes 1012 and insulation cavities 1013. The lower mounting plate 1011 has an annular structure, and its diameter is larger than that of the electric boiler body 1. By adopting a support mechanism that includes mounting holes 1012 and insulation cavities 1013, and a lower mounting plate 1011 that is annular and has a diameter larger than that of the electric boiler body 1, the lower mounting plate 1011 can be easily assembled with other components, while also providing insulation space for waste heat recovery.

[0020] like Figure 4 As shown, the mounting holes 1012 are arranged in a ring array within the lower mounting plate 1011, and the insulation cavity 1013 is located inside the main body of the electric boiler 1. The top of the insulation cavity 1013 is a one-way through mechanism. By adopting the structure of the mounting holes 1012 arranged in a ring array within the lower mounting plate 1011 and the insulation cavity 1013 located inside the main body of the electric boiler 1 with a one-way through structure, the mounting holes 1012 are precisely aligned and installed. The insulation cavity 1013 can limit the waste heat recovery area and reduce heat loss.

[0021] like Figure 2 As shown, the heat exchange copper tube 2 is fixedly installed in the insulation cavity 1013. The heat exchange copper tube 2 has a spiral structure, and its inner wall is in contact with the inner liner of the electric boiler body 1. By using the structure of the heat exchange copper tube 2 fixed in the insulation cavity 1013, spiral in shape, and with its inner wall in contact with the inner liner of the electric boiler body 1, the function of increasing the heat exchange contact area and efficiently absorbing the heat of the electric boiler inner liner for waste heat recovery is realized.

[0022] like Figure 5 As shown, the recovery mechanism also includes an inlet pipe 201 and an outlet pipe 2011. The inlet pipe 201 is fixedly installed at one end of the heat exchange copper tube 2 and extends outward through the electric boiler body 1. The outlet pipe 2011 is fixedly installed at one end of the heat exchange copper tube 2 and is located below the inlet pipe 201. By adopting a recovery mechanism that includes an inlet pipe 201 and an outlet pipe 2011, with the inlet pipe 201 fixed at one end of the heat exchange copper tube 2 and extending out of the electric boiler body 1, and the outlet pipe 2011 fixed at one end of the heat exchange copper tube 2 and located below the inlet pipe 201, the orderly input of the liquid to be heated and the output of the liquid after absorbing waste heat are realized, forming a complete waste heat recovery fluid channel.

[0023] like Figure 1 As shown, the liquid outlet pipe 2011 passes through the main body 1 of the electric boiler outward. Both the liquid outlet pipe 2011 and the liquid inlet pipe 201 are equipped with control valves. By adopting the structure of the liquid outlet pipe 2011 passing through the main body 1 of the electric boiler and the liquid outlet pipe 2011 and the liquid inlet pipe 201 being equipped with control valves, the function of accurately controlling the liquid inlet and outlet flow rates and adjusting the waste heat recovery efficiency is realized.

[0024] like Figure 3 As shown, the covering mechanism includes an upper cover plate 3, an upper mounting plate 301, and a fixing bolt 3011. The upper cover plate 3 is fixedly installed at the top of the electric boiler body 1. The upper mounting plate 301 is fixedly installed on the outer wall of the upper cover plate 3 and located directly above the lower mounting plate 1011. The fixing bolt 3011 is fixedly installed inside the upper mounting plate 301 and the lower mounting plate 1011. By adopting a covering mechanism including an upper cover plate 3, an upper mounting plate 301, and a fixing bolt 3011, the upper cover plate 3 is fixed at the top of the electric boiler body 1, the upper mounting plate 301 is fixed on the outer wall of the upper cover plate 3 and located directly above the lower mounting plate 1011, and the fixing bolt 3011 is fixed inside the upper mounting plate 301 and the lower mounting plate 1011, the top of the electric boiler body 1 is sealed and protected. At the same time, the fixing bolt 3011 achieves a stable connection between the covering mechanism and the support mechanism, preventing heat loss from the top.

[0025] The working principle of this utility model is as follows: Before the equipment is put into use, the electric boiler body 1 is placed at the target installation position by the support legs 101 in the support mechanism. The three support legs 101 distributed in a ring array can evenly distribute the weight of the electric boiler body 1, ensuring that the equipment is placed stably and avoiding shaking due to uneven force during operation. Then, with the help of the mounting holes 1012 on the lower mounting plate 1011, the upper mounting plate 301 and the fixing bolt 3011 in the covering mechanism are used to fix the upper cover plate 3 to the top of the electric boiler body 1, so that the upper cover plate 3 tightly covers the top opening of the electric boiler body 1, forming a sealed structure to prevent heat from escaping from the top during subsequent operation. When the electric boiler starts operating and generates hot water for use by the heating equipment, when the return water containing waste heat flows back, first open the control valve inside the liquid inlet pipe 201 to allow the liquid to be heated (including the return waste heat water and the newly added cold water) to slowly flow into the heat exchange copper tube 2 of the recovery mechanism through the liquid inlet pipe 201. Since the heat exchange copper tube 2 is fixed in the heat insulation cavity 1013 inside the electric boiler body 1, and the inner wall of the heat exchange copper tube 2 is directly attached to the inner tank of the electric boiler body 1, the waste heat carried by the hot water in the inner tank of the electric boiler body 1 will be directly conducted to the liquid to be heated inside the heat exchange copper tube 2 through the pipe wall to preheat it. During this process, the heat insulation cavity 1013 can wrap the heat exchange copper tube 2, reduce the loss of heat to the external environment during the heat exchange process, and ensure the efficiency of waste heat transfer. According to the actual heat recovery requirements, the flow rate of the liquid to be heated in the heat exchange copper tube 2 can be controlled by adjusting the control valves inside the inlet pipe 201 and the outlet pipe 2011. If it is necessary to improve the preheating effect, the liquid flow rate can be slowed down to prolong the heat exchange time between the liquid and the inner tank in the heat exchange copper tube 2. If it is necessary to speed up the liquid circulation, the flow rate can be appropriately increased to ensure the smooth overall heating process. After the liquid is preheated by the heat exchange copper tube 2, the temperature is increased. At this time, the control valve of the liquid outlet pipe 2011 is opened, and the preheated liquid is discharged from the heat exchange copper tube 2 through the liquid outlet pipe 2011 and enters the inner tank of the electric boiler body 1. Then, the electric heating element inside the electric boiler body 1 heats the preheated liquid. Since the liquid has absorbed the residual heat, the power consumption required to reach the set temperature is greatly reduced. During the entire operation, the upper cover plate 3 is always kept sealed by the cooperation of the upper mounting plate 301, the lower mounting plate 1011 and the fixing bolt 3011, continuously preventing heat from being lost from the top. The heat insulation cavity 1013 continuously provides a heat insulation environment for the heat exchange copper tube 2, ensuring that the heat recovery process is stable and efficient, and ensuring that the equipment always operates in a low-energy state.

[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A heat recovery electric boiler, characterized in that, The electric boiler body (1) is included. A support mechanism is fixedly connected to the bottom end of the electric boiler body (1). A recycling mechanism is also fixedly connected inside the electric boiler body (1). A covering mechanism is installed at the top end of the electric boiler body (1). The support mechanism includes a support leg (101) and a lower mounting plate (1011).

2. The heat recovery electric boiler according to claim 1, characterized in that, The support leg (101) is provided in three places. The three support legs (101) are arranged in a ring array and fixedly installed at the bottom of the electric boiler body (1). The lower mounting plate (1011) is fixedly installed at the top of the electric boiler body (1).

3. The heat recovery electric boiler according to claim 1, characterized in that, The support mechanism also includes mounting holes (1012) and insulation cavities (1013). The lower mounting plate (1011) is an annular structure, and the diameter of the lower mounting plate (1011) is larger than the diameter of the electric boiler body (1).

4. A heat recovery electric boiler according to claim 3, characterized in that, The mounting holes (1012) are arranged in a ring array inside the lower mounting plate (1011), and the heat insulation cavity (1013) is opened inside the electric boiler body (1). The top of the heat insulation cavity (1013) is a one-way through mechanism.

5. A heat recovery electric boiler according to claim 1, characterized in that, The recycling mechanism includes a heat exchange copper tube (2), which is fixedly installed in the heat insulation cavity (1013). The heat exchange copper tube (2) has a spiral structure, and the inner wall of the heat exchange copper tube (2) is in contact with the inner liner of the electric boiler body (1).

6. A heat recovery electric boiler according to claim 1, characterized in that, The recycling mechanism also includes an inlet pipe (201) and an outlet pipe (2011). The inlet pipe (201) is fixedly installed at one end of the heat exchange copper tube (2) and extends outward through the electric boiler body (1). The outlet pipe (2011) is fixedly installed at one end of the heat exchange copper tube (2) and is located below the inlet pipe (201).

7. A heat recovery electric boiler according to claim 6, characterized in that, The liquid outlet pipe (2011) passes through the main body (1) of the electric boiler to the outside. Both the liquid outlet pipe (2011) and the liquid inlet pipe (201) are equipped with control valves.

8. A heat recovery electric boiler according to claim 1, characterized in that, The covering mechanism includes an upper cover plate (3), an upper mounting plate (301), and a fixing bolt (3011). The upper cover plate (3) is fixedly installed at the top of the electric boiler body (1). The upper mounting plate (301) is fixedly installed on the outer wall of the upper cover plate (3) and located directly above the lower mounting plate (1011). The fixing bolt (3011) is fixedly installed inside the upper mounting plate (301) and the lower mounting plate (1011).

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