Heat energy power energy-saving device
By introducing a wall scraping mechanism and a filtration mechanism into the thermal power unit, the problem of reduced heat exchange efficiency caused by the condensation of smoke and dust impurities is solved, achieving efficient waste heat utilization and energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-07
AI Technical Summary
During long-term use, impurities in the flue gas of existing thermal power plants tend to condense on the pipe walls, leading to a decrease in heat exchange efficiency.
A device including a flue pipe, a heat exchange cylinder, and a wall scraping mechanism was designed. The device uses the flow of flue gas to drive the wall scraper to clean the inner wall of the flue pipe, and combines it with a filtration mechanism to filter impurities and prevent impurity accumulation.
This effectively prevents impurities from accumulating on the inner wall of the flue pipe, improves heat exchange efficiency, and achieves efficient utilization of waste heat and energy saving.
Smart Images
Figure CN224094495U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to thermal power energy saving technical field, especially thermal power energy saving device. BACKGROUND
[0002] Thermal power device refers to the complete thermal equipment that thermal energy is converted into mechanical energy and generates prime mover, and the source of thermal energy includes the heat energy that is released by using coal, petroleum, natural gas, oil shale, biomass energy and other fuel combustion and nuclear energy, solar energy, geothermal energy, etc., and a large amount of smoke dust is generated in the combustion process of the substances, and a considerable part of the residual heat in the smoke dust is discharged into the atmosphere, causing energy waste.
[0003] At present, in order to fully utilize the residual heat in the smoke dust, the existing thermal power energy saving device generally adopts water pipe spiral and exhaust pipe contact cooperation, and the residual heat in the smoke dust is used to heat the water in the water pipe through heat exchange, so as to reduce the waste of residual heat. However, in the actual application, due to the fact that a large amount of impurities are mixed in the smoke dust, the impurities are easily condensed on the inner wall of the pipeline in the long-term use process, thereby reducing the heat transfer efficiency and affecting the residual heat recovery effect.
[0004] Therefore, the present application provides a thermal power energy saving device to solve the above technical problems. UTILITY MODEL CONTENTS
[0005] The technical problem to be solved by the utility model is to provide a thermal power energy saving device to solve the problem that the impurities in the smoke dust are easily condensed on the pipeline wall in the long-term use process of the thermal power energy saving device in the prior art.
[0006] To solve the above technical problems, the utility model provides the following technical scheme:
[0007] A thermal power energy saving device, comprising an exhaust pipe, a heat exchange cylinder is sleeved on the outer side of the middle part of the exhaust pipe, a recovery pipe is arranged in the heat exchange cylinder and surrounds the exhaust pipe, and a wall scraping mechanism is arranged in the middle part of the exhaust pipe.
[0008] The wall scraping mechanism comprises a movable shaft which is vertically rotatably installed in the middle part of the exhaust pipe, a wall scraping plate is fixed on one side of the middle part of the movable shaft, the wall scraping plate abuts against the inner wall of the exhaust pipe at the position corresponding to the heat exchange cylinder, and a driven fan blade which rotates with the airflow is also fixed on the movable shaft.
[0009] Optionally, a fixed flange is fixed on the bottom of the exhaust pipe.
[0010] Optionally, a water inlet pipe is fixed on the top of the side surface of the heat exchange cylinder, and a water outlet pipe is fixed on the bottom of the side surface of the heat exchange cylinder.
[0011] Optionally, the inlet pipe and the outlet pipe are respectively connected to both ends of the recovery pipe.
[0012] Optionally, both ends of the movable shaft are rotatably fitted with fixed frames, which are fixed to the inner wall of the exhaust pipe.
[0013] Optionally, a filter mechanism is installed at the bottom of the exhaust pipe. The filter mechanism includes a fixed frame installed on the inner wall of the exhaust pipe, and a filter screen is laid in the middle of the fixed frame.
[0014] Optionally, the scraper plate is an inclined plate body, and its inclination direction is the same as that of the driven fan blade.
[0015] Compared with the prior art, this utility model has at least the following beneficial effects:
[0016] In the above scheme, thanks to the cooperation of the flue pipe, heat exchange cylinder and wall scraping mechanism, the flue pipe is used to connect to the thermal power equipment. When the flue dust containing waste heat is discharged, the waste heat of the flue dust is used to heat the recovery pipe in the heat exchange cylinder, achieving the energy-saving effect of waste heat utilization. In addition, the movable shaft, wall scraper and driven fan blades will also rotate with the flow of flue dust, so that the wall scraper can clean the inner wall of the flue pipe around, avoiding the accumulation of impurities and affecting the heat exchange of the recovery pipe.
[0017] In the above solution, thanks to the filter mechanism installed at the bottom of the flue, impurities in the flue can be further filtered to avoid the problem of impurities accumulating on the inner wall of the flue and affecting heat exchange.
[0018] In summary, when utilizing the waste heat from flue gas in thermal power equipment, this device can drive the scraping mechanism to automatically clean the inner wall of the exhaust pipe through the flow of flue gas, thereby avoiding the problem of impurities accumulating on the inner wall of the exhaust pipe and affecting the heat exchange efficiency, resulting in good performance. Attached Figure Description
[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.
[0020] Figure 1 This is a schematic diagram of the structure of a thermal power energy-saving device;
[0021] Figure 2 This is a schematic diagram of the internal structure of a thermal power energy-saving device.
[0022] Figure 3 This is a schematic diagram of the wall scraping mechanism of a thermal power energy-saving device.
[0023] Figure 4 This is a schematic diagram of the filtration mechanism of a thermal power energy-saving device.
[0024] [Figure Labels]
[0025] 1. Exhaust pipe; 2. Fixed flange; 3. Heat exchanger; 301. Recovery pipe; 4. Water inlet pipe; 5. Water outlet pipe; 6. Wall scraping mechanism; 601. Movable shaft; 602. Fixed frame; 603. Wall scraping plate; 604. Driven fan blade; 7. Filtration mechanism; 701. Fixed frame; 702. Filter screen.
[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0027] The present invention provides a thermal power energy-saving device in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some known technologies, those skilled in the art can also use other alternative methods to implement the invention. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0028] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0030] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0031] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0032] like Figure 1 and Figure 2 As shown, an embodiment of this utility model provides a thermal power energy-saving device, including a flue pipe 1. The bottom of the flue pipe 1 is fixed with a fixing flange 2, which can be used to fix it at the exhaust outlet of the thermal power equipment.
[0033] A heat exchange cylinder 3 is sleeved on the outer side of the middle part of the exhaust pipe 1. A recovery pipe 301 is arranged inside the heat exchange cylinder 3, which surrounds the exhaust pipe 1. A water inlet pipe 4 is fixed to the top side of the heat exchange cylinder 3, and a water outlet pipe 5 is fixed to the bottom side of the heat exchange cylinder 3. The water inlet pipe 4 and the water outlet pipe 5 are respectively connected to the two ends of the recovery pipe 301, so that the recovery pipe 301 can be connected to an external water source. Thus, the waste heat of the exhaust gas in the exhaust pipe 1 can be used to heat the water in the recovery pipe 301, achieving the effect of waste heat utilization and reducing energy consumption.
[0034] Cooperate Figure 3 As shown, a wall scraping mechanism 6 is provided in the middle of the exhaust pipe 1. The wall scraping mechanism 6 includes a movable shaft 601 that is vertically and rotatably installed in the middle of the exhaust pipe 1. Specifically, both the upper and lower ends of the movable shaft 601 are rotatably fitted with a fixed frame 602, and the fixed frame 602 is fixed to the inner wall of the exhaust pipe 1.
[0035] A scraper 603 is fixed to one side of the middle part of the movable shaft 601. The scraper 603 abuts against the inner wall of the exhaust pipe 1 corresponding to the position of the heat exchange cylinder 3. A driven fan blade 604 that rotates as the airflow passes through is also fixed on the movable shaft 601.
[0036] Cooperate Figure 4As shown, a filter mechanism 7 is installed at the bottom of the exhaust pipe 1. The filter mechanism 7 includes a fixed frame 701 installed on the inner wall of the exhaust pipe 1, and a filter screen 702 is laid in the middle of the fixed frame 701.
[0037] In other embodiments, the scraper plate 603 may also be designed as an inclined plate, and the inclination direction of the blades of the driven fan blade 604 is the same, so that the scraper plate 603 can also be rotated by the influence of airflow.
[0038] The working principle provided by this utility model is that, when in use, the thermal power energy-saving device is connected to the exhaust port of the thermal power equipment through the fixed flange 2 at the bottom of the exhaust pipe 1. When the exhaust pipe 1 discharges smoke containing residual heat, the residual heat of the smoke can be used to heat the recovery pipe 301 in the heat exchange cylinder 3. This allows the recovery pipe 301 to use the residual heat to heat the water, achieving the energy-saving effect of waste heat utilization.
[0039] Meanwhile, due to the flow of smoke and dust, the driven fan blades 604 will drive the movable shaft 601 to rotate, thereby driving the scraper 603 to clean the inner wall of the exhaust pipe 1 around, so as to avoid the accumulation of impurities and affect the heat exchange of the recovery pipe 301.
[0040] In addition, since a filter mechanism 7 is also provided at the bottom of the flue pipe 1, it can further filter the impurities in the flue gas to avoid the problem of impurities in the flue gas accumulating on the inner wall of the flue pipe 1 and affecting heat exchange.
[0041] In summary, when utilizing the waste heat from the flue gas of thermal power equipment, this device can drive the scraping mechanism 6 to automatically clean the inner wall of the exhaust pipe 1 through the flow of flue gas, thereby avoiding the problem of impurities accumulating on the inner wall of the exhaust pipe 1 and affecting the heat exchange efficiency, resulting in good performance.
[0042] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A thermal power energy-saving device, comprising a flue pipe (1), characterized in that, A heat exchange cylinder (3) is sleeved on the outer side of the middle part of the exhaust pipe (1). A recovery pipe (301) is provided inside the heat exchange cylinder (3) surrounding the exhaust pipe (1). A wall scraping mechanism (6) is provided in the middle part of the exhaust pipe (1). The wall scraping mechanism (6) includes a movable shaft (601) that is vertically rotatably installed in the middle of the flue pipe (1). A wall scraping plate (603) is fixed on one side of the middle of the movable shaft (601). The wall scraping plate (603) abuts against the inner wall of the flue pipe (1) corresponding to the position of the heat exchange cylinder (3). A driven fan blade (604) that rotates as the airflow passes through is also fixed on the movable shaft (601).
2. The thermal power energy-saving device according to claim 1, characterized in that, The bottom of the exhaust pipe (1) is fixed with a fixing flange (2).
3. The thermal power energy-saving device according to claim 1, characterized in that, A water inlet pipe (4) is fixed to the top side of the heat exchange cylinder (3), and a water outlet pipe (5) is fixed to the bottom side of the heat exchange cylinder (3).
4. The thermal power energy-saving device according to claim 3, characterized in that, The inlet pipe (4) and the outlet pipe (5) are respectively connected to both ends of the recovery pipe (301).
5. The thermal power energy-saving device according to claim 1, characterized in that, The movable shaft (601) is rotatably fitted with a fixed frame (602) at both its upper and lower ends, and the fixed frame (602) is fixed to the inner wall of the exhaust pipe (1).
6. The thermal power energy-saving device according to claim 1, characterized in that, A filter mechanism (7) is installed at the bottom of the exhaust pipe (1). The filter mechanism (7) includes a fixed frame (701) installed on the inner wall of the exhaust pipe (1). A filter screen (702) is laid in the middle of the fixed frame (701).
7. The thermal power energy-saving device according to claim 1, characterized in that, The scraper plate (603) is an inclined plate, and its inclination direction is the same as that of the driven fan blade (604).