Energy-saving furnace with waste heat utilization

Abstract

The utility model is suitable for energy -conserving stove technical field provides a kind of energy -conserving stove of waste heat utilization, including bottom plate, the bottom plate is fixedly connected with energy -conserving stove body, the side of energy -conserving stove body is equipped with exhaust pipe, one end of exhaust pipe is equipped with recovery tank, the upper portion of recovery tank is equipped with heating device. In the utility model, by starting water pump, water pump is inhaled water flow after water inlet pipe and enters outlet pipe, water flow is transported to shell, again, heat pipe is penetrated recovery tank inside, at this moment, high-temperature exhaust gas of furnace body is entered heat pipe by one-way air inlet valve, and heat exchange is formed with heat pipe inner wall, to carry out sustained heating to the water body flowing in shell, exhaust gas is discharged by one-way air outlet valve after heat exchange in heat pipe, realize the one-way flow update of gas, avoid heat accumulation, by the above-mentioned circulation, the waste heat originally directly discharged can be fully recovered and used for water heating, not only improve the thermal efficiency, but also realize the effect of energy saving and consumption reduction.

Description

Technical Field

[0001] This utility model belongs to the field of energy-saving furnace technology, and in particular relates to an energy-saving furnace that utilizes waste heat. Background Technology

[0002] Chinese patent CN223376328U discloses an energy-saving furnace for waste heat utilization. The furnace includes a sealed heating tank with a heating chamber inside. An air inlet is located at the top of the heating tank and communicates with the heating chamber. A blower fan is installed inside the heating tank and positioned at the air inlet. Multiple circulating air channels are embedded in the inner wall of the heating tank, circling the outer periphery of the heating chamber. Both ends of the circulating air channels communicate with the heating chamber; one channel opening is located at the bottom of the heating chamber, and the other opening is located on the inner wall of the air inlet. This invention allows the incoming air to circulate within the furnace and remain for a certain period, effectively maintaining the temperature of the internal heating chamber. Simultaneously, the temperature of the gas circulating inside the furnace is fully heated, making it easy to control the gas temperature and resulting in higher heating efficiency.

[0003] However, in the above-mentioned solutions, although traditional energy-saving furnaces have a certain thermal energy utilization rate during the combustion process, a large amount of waste gas generated by combustion is still directly discharged through the exhaust pipe, resulting in a significant waste of thermal energy. In the existing technology, although some energy-saving furnaces have attempted to add heat exchangers in the exhaust pipe for waste heat recovery, most of them have a simple structure and can only perform simple heat exchange on the gas, making it difficult to achieve continuous circulating water heating. Furthermore, they lack functions in water temperature control, automatic switching, and storage, resulting in low waste heat utilization and insufficient system intelligence. Utility Model Content

[0004] This utility model provides an energy-saving furnace for waste heat utilization, aiming to solve the problem that although traditional energy-saving furnaces have a certain thermal energy utilization rate during combustion, a large amount of waste gas generated during combustion is still directly discharged through the exhaust pipe, resulting in a large waste of thermal energy. In the prior art, although some energy-saving furnaces have attempted to add heat exchangers in the exhaust pipe for waste heat recovery, most of them have simple structures and can only perform simple heat exchange on the gas, making it difficult to achieve continuous circulating water heating.

[0005] This utility model is implemented as follows: an energy-saving furnace for waste heat utilization includes a base plate, an energy-saving furnace body is fixedly connected to the base plate, an exhaust pipe is installed on one side of the energy-saving furnace body, a recovery box is installed at one end of the exhaust pipe, a heating device is installed above the recovery box, and a storage device is installed on one side of the recovery box.

[0006] The heating device includes a water pump and a housing. The output end of the water pump is equipped with a water outlet pipe. The housing is fixedly connected above the recycling bin. A heat conduction pipe is installed inside the housing. The heat conduction pipe is connected through the recycling bin via a one-way air inlet valve and a one-way air outlet valve. One end of the water outlet pipe is connected through the housing.

[0007] Preferably, the water pump has an inlet pipe installed at its input end, and the inlet pipe is configured as a flexible pipe that is easy to install.

[0008] Preferably, the heat pipe is shaped to facilitate extending the heating path.

[0009] Preferably, the storage device includes a water tank, a solenoid valve, and a temperature sensor. The water tank is fixedly connected to the base plate and to one side of the recycling bin. An observation window is installed on the front of the water tank. The solenoid valve is fixedly connected to the upper surface of the recycling bin. The input end of the solenoid valve is installed inside the housing, and a pipe is installed on the output end of the solenoid valve.

[0010] Preferably, the pipe is connected through the water storage tank, the temperature sensor is installed inside the housing, and the detection end of the temperature sensor is connected through the housing.

[0011] Preferably, a wire is installed inside the temperature sensor, and a controller is installed below the wire.

[0012] Preferably, the controller is fixedly connected above the recycling bin, and the controller is electrically connected to both the solenoid valve and the water pump.

[0013] Compared with related technologies, the energy-saving furnace for waste heat utilization provided by this utility model has the following beneficial effects:

[0014] 1. In this utility model, by starting the water pump, the water pump draws water through the inlet pipe and then into the outlet pipe. The water is transported into the casing and then passes through the heat-conducting pipe into the inside of the recovery tank. At this time, the high-temperature exhaust gas discharged from the furnace enters the heat-conducting pipe through the one-way inlet valve and forms a heat exchange with the inner wall of the heat-conducting pipe, thereby continuously heating the water flowing in the casing. After heat exchange in the heat-conducting pipe, the exhaust gas is discharged through the one-way outlet valve, realizing the one-way flow and renewal of the gas and avoiding heat accumulation. Through the above cycle, the waste heat that was originally directly discharged can be fully recovered and used for water heating, which not only improves the thermal energy utilization rate, but also achieves the effect of energy saving and consumption reduction.

[0015] 2. In this utility model, the water temperature inside the casing is monitored in real time by a temperature sensor. When the water temperature reaches a preset threshold, the temperature sensor sends a signal through the controller to automatically open the solenoid valve, allowing the heated hot water to flow into the storage tank for storage. Subsequently, the control system starts the water pump to introduce new cold water into the casing through the inlet pipe for the next round of heating. When the water pump has run for a set time, the controller issues a stop command, and the water pump stops working. Through the above automatic control process, the automatic discharge of hot water and the re-entry of cold water are realized, forming a complete circulating heating system. This enables the energy-saving furnace to continuously and efficiently recover and utilize waste heat, improving the system's automation and energy-saving level. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the heating device of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the storage device of this utility model;

[0019] Figure 4 This utility model Figure 3 An enlarged structural diagram of part A in the middle.

[0020] In the diagram: 1. Base plate; 2. Energy-saving furnace body; 3. Exhaust pipe; 4. Recycling box; 5. Heating device; 501. Water pump; 502. Water inlet pipe; 503. Water outlet pipe; 504. Housing; 505. Heat conduction pipe; 6. Storage device; 601. Water storage tank; 602. Observation window; 603. Solenoid valve; 604. Pipeline; 605. Temperature sensor; 606. Wire; 607. Controller. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] Example 1

[0024] A preferred embodiment of the energy-saving furnace for waste heat utilization provided by this utility model is, for example... Figures 1 to 2 As shown: An energy-saving furnace for waste heat utilization includes a base plate 1, an energy-saving furnace body 2 fixedly connected to the base plate 1, an exhaust pipe 3 installed on one side of the energy-saving furnace body 2, a recovery box 4 installed at one end of the exhaust pipe 3, a heating device 5 installed above the recovery box 4, and a storage device 6 installed on one side of the recovery box 4.

[0025] The heating device 5 includes a water pump 501 and a housing 504. The output end of the water pump 501 is equipped with a water outlet pipe 503. The housing 504 is fixedly connected above the recycling box 4. A heat conduction pipe 505 is installed inside the housing 504. The heat conduction pipe 505 is connected through the recycling box 4 via a one-way air inlet valve and a one-way air outlet valve. One end of the water outlet pipe 503 is connected through the housing 504.

[0026] In this embodiment, the cooperation between the heat pipe 505 and the one-way air inlet valve allows the hot air entering the recovery box 4 to flow unidirectionally along the direction of the heat pipe 505, avoiding backflow of gas and a decrease in heat exchange efficiency. When the hot air flows in a fixed direction in the heat pipe 505, it can fully contact the heat-conducting wall to achieve stable and continuous heat conduction, thereby improving the heating uniformity of the water flow in the casing 504.

[0027] In a further preferred embodiment of the present invention, a water inlet pipe 502 is installed at the input end of the water pump 501. The water inlet pipe 502 is configured as an elastic pipe that is easy to install, and the heat conduction pipe 505 is configured as an irregular shape that is easy to extend the heating path.

[0028] In this embodiment, the cooperation between the water inlet pipe 502 and the water pump 501 enables the water pump 501 to quickly draw in water when it starts up. The elastic structure of the water inlet pipe 502 helps to reduce vibration and stress concentration during installation and operation, and prevents the interface from loosening or leaking. The elastic pipe can also buffer instantaneous flow pressure changes, ensuring the stability of the water pump 501's water intake process and providing continuous flow support for the subsequent heating process.

[0029] Example 2

[0030] Based on Example 1, a preferred embodiment of the energy-saving furnace for waste heat utilization provided by this utility model is as follows: Figures 3 to 4 As shown: The storage device 6 includes a water tank 601, a solenoid valve 603, and a temperature sensor 605. The water tank 601 is fixedly connected to the base plate 1 and to one side of the recycling tank 4. An observation window 602 is installed on the front of the water tank 601. The solenoid valve 603 is fixedly connected to the upper surface of the recycling tank 4. The input end of the solenoid valve 603 is installed inside the housing 504, and the output end of the solenoid valve 603 is connected to a pipe 604, which runs through the water tank 601. The temperature sensor 605 is installed inside the housing 504, and the detection end of the temperature sensor 605 runs through the housing 504. A wire 606 is installed inside the temperature sensor 605, and a controller 607 is installed below the wire 606. The controller 607 is fixedly connected to the top of the recycling tank 4, and the controller 607 is electrically connected to the solenoid valve 603 and the water pump 501.

[0031] In this embodiment, the cooperation between the temperature sensor 605 and the solenoid valve 603 enables the system to achieve automatic water temperature control. When the water temperature inside the housing 504 reaches the preset value, the temperature sensor 605 immediately sends a signal to the controller 607, which then drives the solenoid valve 603 to open, realizing automatic hot water discharge. This linkage makes the system operation process more intelligent, reduces manual intervention, and improves the level of energy efficiency management.

[0032] In summary, by starting the water pump 501, water is drawn into the inlet pipe 502 and then into the outlet pipe 503. The water is then transported into the casing 504 and passes through the heat pipe 505 into the recovery tank 4. At this time, the high-temperature exhaust gas discharged from the furnace enters the heat pipe 505 through the one-way inlet valve, where it exchanges heat with the inner wall of the heat pipe 505, thereby continuously heating the water flowing inside the casing 504. After heat exchange in the heat pipe 505, the exhaust gas is discharged through the one-way outlet valve, achieving unidirectional gas flow renewal and preventing heat accumulation. Through the above cycle, the waste heat that would otherwise be directly discharged can be fully utilized. The water is recycled and used for water heating. The temperature sensor 605 monitors the water temperature inside the casing 504 in real time. When the water temperature reaches the preset threshold, the temperature sensor 605 sends a signal through the controller 607 to control the solenoid valve 603 to open automatically, so that the heated hot water flows into the storage tank 601 through the pipe 604 for storage. Then, the control system starts the water pump 501 to introduce new cold water into the casing 504 through the inlet pipe 502 for the next round of heating. When the water pump 501 has run for a set time, the controller 607 issues a stop command, and the water pump 501 stops working.

[0033] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0034] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An energy-saving furnace for waste heat utilization, characterized in that, include: A base plate (1) is fixedly connected to an energy-saving furnace body (2). An exhaust pipe (3) is installed on one side of the energy-saving furnace body (2). A recycling box (4) is installed at one end of the exhaust pipe (3). A heating device (5) is installed above the recycling box (4). A storage device (6) is installed on one side of the recycling box (4). The heating device (5) includes a water pump (501) and a housing (504). The output end of the water pump (501) is equipped with a water outlet pipe (503). The housing (504) is fixedly connected above the recycling box (4). A heat conduction pipe (505) is installed inside the housing (504). The heat conduction pipe (505) is connected through the recycling box (4) through a one-way air inlet valve and a one-way air outlet valve. One end of the water outlet pipe (503) is connected through the housing (504).

2. The energy-saving furnace for waste heat utilization as described in claim 1, characterized in that, The water pump (501) is equipped with an inlet pipe (502) at its input end, and the inlet pipe (502) is configured as an elastic pipe that is easy to install.

3. The energy-saving furnace for waste heat utilization as described in claim 1, characterized in that, The heat pipe (505) is shaped to facilitate extending the heating path.

4. The energy-saving furnace for waste heat utilization as described in claim 1, characterized in that, The storage device (6) includes a water tank (601), a solenoid valve (603), and a temperature sensor (605). The water tank (601) is fixedly connected to the base plate (1) and to one side of the recycling box (4). An observation window (602) is installed on the front of the water tank (601). The solenoid valve (603) is fixedly connected to the upper surface of the recycling box (4). The input end of the solenoid valve (603) is installed inside the casing (504), and the output end of the solenoid valve (603) is installed with a pipe (604).

5. The energy-saving furnace for waste heat utilization as described in claim 4, characterized in that, The pipe (604) is connected through the water storage tank (601), and the temperature sensor (605) is installed inside the casing (504). The detection end of the temperature sensor (605) is connected through the casing (504).

6. The energy-saving furnace for waste heat utilization as described in claim 5, characterized in that, A wire (606) is installed inside the temperature sensor (605), and a controller (607) is installed below the wire (606).

7. The energy-saving furnace for waste heat utilization as described in claim 6, characterized in that, The controller (607) is fixedly connected above the recycling bin (4), and the controller (607) is electrically connected to the solenoid valve (603) and the water pump (501).

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