Waste heat utilization pipeline for boiler combustion optimization

Abstract

The utility model discloses a waste heat utilization pipeline for boiler combustion optimization, which comprises a pipeline body, a plurality of heat exchange plates and a plurality of cleaning components, and the plurality of heat exchange plates are arranged in parallel at intervals along the length direction of the pipeline body. The corresponding cleaning assemblies are arranged on the contact faces of all the heat exchange plates and smoke and used for removing smoke steam impurities accumulated on the heat exchange plates. The heat exchange plate is of a wave-shaped structure and is used for increasing the contact area between the heat exchange plate and smoke. Corresponding cleaning assemblies are arranged at the bottoms of all heat exchange plates installed in a waste heat utilization pipeline, so that the cleaning assemblies are driven by rotating driving parts to move in the length direction of lead screws, and then a cleaning roller installed between the two lead screws moves along the heat exchange plates; and furthermore, metal bristles on the cleaning roller are used for removing smoke impurities accumulated on the heat exchange surface of the heat exchange plate, so that the waste heat utilization efficiency of the waste heat utilization pipeline for boiler combustion optimization is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste heat utilization technology, specifically to a waste heat utilization pipeline for boiler combustion optimization. Background Technology

[0002] Boilers produce a large amount of combustion flue gas during combustion. The heat in the flue gas accounts for 10% of the heat of the boiler gas. Direct discharge will cause a large amount of energy loss. Existing boiler flue gas waste heat utilization devices, on the other hand, set up waste heat pipes at the rear end of the boiler exhaust pipes to allow high-temperature flue gas to exchange heat with water. The pipes are generally installed as a whole.

[0003] The existing waste heat utilization pipeline for boiler combustion optimization (a waste heat utilization conversion device with application number 202222428723.4) improves the waste heat utilization efficiency of the boiler by setting an adjustable metal conduit inside the waste heat utilization pipeline so that the conduit can adjust the distribution density according to the flue gas in the waste heat pipeline. However, this waste heat utilization pipeline does not have a cleaning component at the bottom of the heat exchange plate so that the cleaning component can clean the heat exchange plate regularly and prevent impurities such as flue gas from accumulating on the heat exchange surface of the heat exchange plate on the waste heat utilization pipeline, which would affect the recovery and utilization efficiency of waste heat for boiler combustion optimization. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a waste heat recovery pipeline for boiler combustion optimization, which solves the technical problem that the heat exchange plate bottom of the existing waste heat recovery pipeline is not equipped with a cleaning component, so that the cleaning component can clean the heat exchange plate regularly and prevent impurities such as flue gas from accumulating on the heat exchange surface of the heat exchange plate on the waste heat recovery pipeline, thus affecting the efficiency of waste heat recovery for boiler combustion optimization.

[0005] According to the technical solution provided in the embodiments of this application, a waste heat utilization pipeline for boiler combustion optimization includes a pipeline body, a plurality of heat exchange plates and a plurality of cleaning components. The plurality of heat exchange plates are arranged side by side and spaced apart along the length direction of the pipeline body, and each heat exchange plate is provided with a corresponding cleaning component on the contact surface with the flue gas for removing flue gas impurities accumulated on the heat exchange plate.

[0006] The heat exchange plate has a corrugated structure to increase the contact area between the heat exchange plate and the flue gas.

[0007] The cleaning assembly includes a rotary drive, two drive wheels, two lead screws, a drive belt, and a cleaning roller. The two ends of the cleaning roller are screwed onto the corresponding lead screws. The front end of each lead screw is equipped with a drive wheel corresponding to the oil fume. The two drive wheels are respectively engaged with the drive belt. The drive wheel at the front end is connected to the output end of the rotary drive, so that the rotary drive drives the cleaning roller to move along the length of the lead screw for cleaning the impurities accumulated on the heat exchange plate.

[0008] Furthermore, the lead screws are arranged side by side and spaced apart on both sides of the cleaning roller.

[0009] Furthermore, the cleaning roller has rotating holes at both ends, and a corresponding rotating rod is inserted into each of the rotating holes.

[0010] Furthermore, the rotating rod is horizontally mounted on the movable seat, and the movable seat is screwed onto the corresponding lead screw.

[0011] Furthermore, the cleaning roller is equipped with a plurality of bristles, which are evenly distributed on the outer side of the cleaning roller.

[0012] Furthermore, the bristles on the cleaning roller abut against the bottom of the heat exchange plate.

[0013] Furthermore, the brush bristles are made of metal.

[0014] In summary, the beneficial effects of this application are as follows:

[0015] 1. By installing a corrugated heat exchange plate inside the waste heat utilization pipeline, the contact area between the heat exchange plate and the flue gas is increased, so that the flue gas can exchange heat with the water in the heat exchange plate in a timely manner, thereby improving the waste heat utilization efficiency of boiler combustion optimization.

[0016] Second, by installing corresponding cleaning components at the bottom of each heat exchange plate inside the waste heat utilization pipeline, the cleaning components move along the length of the lead screw under the drive of the rotating drive component, thereby causing the cleaning roller installed between the two lead screws to move along the heat exchange plate, and the metal bristles on the cleaning roller to remove the dust and impurities accumulated on the heat exchange surface of the heat exchange plate, thereby improving the waste heat utilization efficiency of the waste heat utilization pipeline for boiler combustion optimization. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded structural diagram of the present invention;

[0020] Figure 3 This is an exploded view of the cleaning component of this utility model;

[0021] Figure 4 This is a schematic diagram of the heat exchange plate structure of this utility model.

[0022] The following components are labeled in the diagram: Pipe body - 100, heat exchange plate - 200, cleaning component - 300, rotation drive component - 310, transmission wheel - 320, lead screw - 330, transmission belt - 340, cleaning roller - 350, brush bristles - 360, moving seat - 370, rotating rod - 380. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] A waste heat recovery pipe for boiler combustion optimization, its structure is as follows: Figures 1-4As shown, the system includes a pipe body 100, several heat exchange plates 200, and several cleaning components 300. The heat exchange plates 200 are arranged side by side and spaced apart along the length of the pipe body 100, and each heat exchange plate 200 has a corresponding cleaning component 300 on its contact surface with the flue gas, so that the cleaning component 300 can remove the flue gas impurities accumulated on the heat exchange plate 200. The heat exchange plate 200 has a corrugated external structure and a heat exchange chamber inside, with an inlet and a outlet on the heat exchange chamber. The heat exchange chamber is filled with hot water that flows and exchanges heat with the waste heat flue gas in the waste heat utilization pipeline. The corrugated heat exchange contact surface of the heat exchange plate 200 is used to increase the contact area between the heat exchange plate 200 and the flue gas, thereby improving the waste heat utilization efficiency of the boiler. The cleaning component 300 includes a rotating drive component 310, two drive wheels 320, two lead screws 330, a drive belt 340, and a cleaning roller 350. The two ends of the cleaning roller 350 are respectively screwed to the corresponding lead screws 330, and each lead screw 330... A transmission wheel 320 corresponding to the oil fume is installed at the front end of the 0 rod. The two transmission wheels 320 are respectively meshed with the transmission belt 340. The transmission wheel 320 at the front end is connected to the output end of the rotation drive 310. After the rotation drive 310 on the cleaning component 300 is started, it drives the transmission wheel 320 at the front end to rotate, which in turn causes the transmission belt 340 meshed with the transmission wheel 320 to rotate. The transmission belt 340 drives the other transmission wheel 320 to rotate, which causes the lead screw 330 installed on the two transmission wheels 320 to rotate. This causes the movable seat 370 screwed on the lead screw 330 to move along the length direction of the lead screw 330, which in turn causes the cleaning roller 350 installed between the two movable seats 370 to rotate and move linearly along the length direction of the lead screw 330. This allows the several metal bristles 360 installed on the cleaning roller 350 to remove the smoke and dust impurities accumulated on the heat exchange plate 200, thereby improving the heat exchange efficiency between the heat exchange plate 200 and the boiler flue gas and the waste heat utilization efficiency of the flue gas.

[0026] As a preferred embodiment, please refer to Figure 3 The lead screws 330 are arranged side by side and spaced apart on both sides of the cleaning roller 350. The lead screws 330 are arranged horizontally along the length of the heat exchange plate 200 so that the cleaning roller 350 screwed to the two lead screws 330 can move along the length of the lead screws 330, thereby removing dust and impurities from the heat exchange contact surface of the heat exchange plate 200.

[0027] As a preferred embodiment, please refer to Figure 2 and Figure 3The cleaning roller 350 has rotating holes at both ends, and a corresponding rotating rod 380 is inserted into each rotating hole. The rotating rod 380 is horizontally mounted on the movable seat 370, and the movable seat 370 is screwed onto the corresponding lead screw 330. When the rotating drive 310 drives the movable seat 370 to move linearly along the corresponding lead screw 330, the cleaning roller 350 on the rotating rod 380 movably mounted on the movable seat 370 rotates and moves, thereby causing the bristles 360 mounted on the cleaning roller 350 to remove the dust and impurities accumulated on the heat exchange plate 200.

[0028] As a preferred embodiment, please refer to Figure 2 and Figure 3 The cleaning roller 350 is equipped with several bristles 360, which are evenly distributed on the outer side of the cleaning roller 350. The bristles 360 on the cleaning roller 350 abut against the bottom of the heat exchange plate 200. When the rotating drive 310 drives the cleaning roller 350 to move, the metal bristles 360 clean the heat exchange contact surface of the heat exchange plate 200 along the movement and rotation of the cleaning roller 350. This prevents a large amount of boiler combustion dust from accumulating on the heat exchange plate 200, affecting the heat exchange efficiency of the heat exchange plate 200, and thus affecting the waste heat utilization efficiency of the boiler combustion flue gas.

[0029] The working principle of this utility model for a waste heat recovery pipeline used for boiler combustion optimization is as follows:

[0030] During boiler combustion, the flue gas contains a large amount of heat. By installing a waste heat utilization pipe at the rear end of the flue gas duct, the waste heat utilization pipe can exchange heat with the flue gas in a timely manner, thereby utilizing the heat in the flue gas and reducing energy waste. However, during the heat exchange process in the waste heat utilization pipe, due to the large amount of soot contained in the flue gas, a large amount of soot and impurities will accumulate on the contact surface between the heat exchange plate 200 and the flue gas, thus affecting the heat exchange efficiency between the heat exchange plate 200 and the flue gas. By installing cleaning components 300 on the heat exchange contact surfaces of each heat exchange plate 200 in the waste heat utilization pipe, when the rotation drive component 310 on the cleaning component 300 is activated, it drives the transmission wheel 320 located at the front end to rotate, thereby causing the transmission belt 340 meshing with the transmission wheel 320 to rotate, and the transmission belt 340 drives another transmission wheel 320 to rotate, so that the transmission belt 340 connected to the two transmission wheels 320 can rotate. The lead screw 330 rotates, causing the movable seat 370 screwed onto the lead screw 330 to move along the length of the lead screw 330. This causes the cleaning roller 350, installed between the two movable seats 370, to rotate and move linearly along the length of the lead screw 330. This allows several metal bristles 360 installed on the cleaning roller 350 to remove the dust and impurities accumulated on the heat exchange plate 200, thereby improving the heat exchange efficiency between the heat exchange plate 200 and the boiler flue gas, as well as the waste heat utilization efficiency of the flue gas. At the same time, the traditional plate heat exchange plate 200 is set into a corrugated structure, and several exhaust holes are set on the heat exchange plate 200 to allow the flue gas to be discharged from the exhaust holes. By setting the corrugated structure of the heat exchange plate 200 in the waste heat utilization pipe, the contact area between the heat exchange plate 200 and the flue gas is increased, so that the flue gas can exchange heat with the water in the heat exchange plate 200 in a timely manner, thereby improving the waste heat utilization efficiency of the boiler combustion optimization.

[0031] The above description is merely a preferred embodiment of this application and an explanation of the technical principles and solutions employed. Furthermore, the scope of the utility model involved in this application is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A waste heat utilization pipe for boiler combustion optimization, comprising a pipe body (100), a plurality of heat exchange plates (200), and a plurality of cleaning components (300), wherein the plurality of heat exchange plates (200) are arranged side by side and spaced apart along the length direction of the pipe body (100), and each heat exchange plate (200) has a corresponding cleaning component (300) on its contact surface with the flue gas for removing flue gas impurities accumulated on the heat exchange plates (200), characterized in that: The heat exchange plate (200) has a corrugated structure to increase the contact area between the heat exchange plate (200) and the flue gas; The cleaning assembly (300) includes a rotation drive (310), two drive wheels (320), two lead screws (330), a drive belt (340), and a cleaning roller (350). The two ends of the cleaning roller (350) are respectively screwed onto the corresponding lead screws (330). The front end of each lead screw (330) is equipped with the corresponding drive wheel (320) for oil fume. The two drive wheels (320) are respectively engaged with the drive belt (340). The drive wheel (320) located at the front end is connected to the output end of the rotation drive (310) so that the rotation drive (310) drives the cleaning roller (350) to move along the length direction of the lead screw (330) for cleaning the impurities accumulated on the heat exchange plate (200).

2. The waste heat recovery pipeline for boiler combustion optimization according to claim 1, characterized in that: The lead screws (330) are arranged side by side and spaced apart on both sides of the cleaning roller (350).

3. A waste heat recovery pipeline for boiler combustion optimization according to claim 1, characterized in that: The cleaning roller (350) has rotating holes at both ends, and a corresponding rotating rod (380) is inserted into each of the rotating holes.

4. A waste heat recovery pipeline for boiler combustion optimization according to claim 3, characterized in that: The rotating rod (380) is horizontally mounted on the movable seat (370), and the movable seat (370) is screwed onto the corresponding lead screw (330).

5. A waste heat recovery pipeline for boiler combustion optimization according to claim 1, characterized in that: The cleaning roller (350) is equipped with a plurality of bristles (360), which are evenly distributed on the outer side of the cleaning roller (350).

6. A waste heat recovery pipeline for boiler combustion optimization according to claim 1, characterized in that: The bristles (360) on the cleaning roller (350) abut against the bottom of the heat exchange plate (200).

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