A green and environmentally friendly ventilation system energy recovery device

Abstract

This utility model relates to the field of energy recovery technology for ventilation systems, and more particularly to a green and environmentally friendly energy recovery device for ventilation systems. It includes a frame and ventilation pipes installed on both sides of the frame. Both the ventilation pipes and the frame are divided into two cavities. A fixing frame is symmetrically fixed to the inner side of the frame, and a heat exchange pipe is fixedly connected between the fixing frame and the frame. A fixing frame is fixed to the bottom of the frame. When hot air is discharged into the frame through the ventilation pipes, it comes into contact with the heat exchange pipes. The heat exchange pipes absorb the heat from the hot air, and the absorbed heat comes into contact with water, turning the water into hot water. The hot water is then discharged from the heat exchange pipes. After prolonged use, an electric push rod is activated to move a movable frame, which in turn moves a brush frame to remove dust and impurities adhering to the outer wall of the heat exchange pipes. This prevents dust and impurities from affecting heat absorption, thereby improving energy recovery efficiency and effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of energy recovery technology for ventilation systems, and in particular to a green and environmentally friendly energy recovery device for ventilation systems. Background Technology

[0002] In ventilation systems, traditional ventilation methods often focus only on air circulation and quality improvement, neglecting energy recovery and utilization. This results in a significant waste of heat and other forms of energy during the ventilation process. To recover and utilize the waste heat and energy in the exhaust gases generated during ventilation, energy recovery devices are used to recycle energy, achieving efficient energy utilization and reducing energy consumption.

[0003] Chinese Patent CN211625585U discloses a fresh air ventilation energy recovery device, including a ventilation box. The ventilation box has a first ventilation chamber and a second ventilation chamber inside. A first air inlet and a first air outlet are respectively installed on both sides of the other end of the ventilation box. A first connecting pipe and a second connecting pipe are installed on one side of the first heat exchanger and the second heat exchanger. A drain pipe and a water inlet pipe are respectively installed on the first connecting pipe and the second connecting pipe. Although the above patent can absorb heat from the hot air and complete energy recovery, the hot air is also mixed with a large amount of dust and impurities. The dust and impurities will adhere and affect the heat exchange, resulting in a reduction in energy recovery efficiency and effect.

[0004] This utility model aims to solve the problems existing in the above-mentioned patents. To this end, it proposes a green and environmentally friendly ventilation system energy recovery device that can remove attached dust and impurities and improve heat exchange efficiency and effect. Utility Model Content

[0005] To overcome the shortcomings of the large amount of dust and impurities mixed in with hot air, which can affect heat exchange and reduce energy recovery efficiency and effect, this utility model provides a green and environmentally friendly ventilation system energy recovery device that can remove the attached dust and impurities and improve energy recovery efficiency and effect.

[0006] This utility model is achieved through the following technical solution:

[0007] An energy recovery device for a green and environmentally friendly ventilation system includes a frame and ventilation pipes installed on both sides of the frame. Both the ventilation pipes and the frame are divided into two cavities. A fixed frame is symmetrically fixed to the inner side of the frame, and a heat exchange pipe is fixedly connected between the fixed frame and the frame. A fixed frame is fixed to the bottom of the frame. The device also includes a movable frame, a brush holder, an electric push rod, and a blocking component. Movable frames are slidably connected at even intervals at the top of the frame. A brush holder is fixed between the bottom ends of the movable frames on the same side, and the brush holder is located inside the frame and contacts the heat exchange pipe. Electric push rods are symmetrically fixed to both sides of the frame. The telescopic ends of the electric push rods are fixedly connected to the movable frames. The electric push rods are used to drive the movable frames to move up and down, which in turn drives the brush holders to move up and down, allowing the brush holders to remove dust and impurities adhering to the outer wall of the heat exchange pipe. The blocking component is installed between the ventilation pipe and the fixed frame to block hot air.

[0008] Further explanation: The blocking assembly includes sealing plates that are rotatably connected to the ventilation duct at even intervals. The front three sealing plates form a group, and the rear three sealing plates form a group, which are used to block hot air. A worm gear is fixedly mounted on the top of the shaft of the sealing plate. A worm gear that meshes with the worm gear is symmetrically rotatably connected to the top of the ventilation duct. A drive motor is installed on both sides of the frame. A V-belt assembly is connected between the output shaft of the drive motor and the end of the worm gear. A sealing assembly is provided between the sealing plate and the frame to seal the bottom of the frame.

[0009] Further explanation: The enclosure component includes a U-shaped plate symmetrically fixed to the bottom of the frame. Rotary shafts are evenly spaced and rotatably connected between the two sides of the U-shaped plate. The ends of the rotating shafts are connected to the ends of the shafts of the enclosure plate through a bevel gear assembly. A baffle is fixedly mounted on the rotating shaft for sealing the bottom of the frame.

[0010] Further explanation includes a flow guiding assembly, which includes baffles evenly spaced and fixed to the heat exchange tubes. Annular seats are rotatably connected to the left front side and right rear side of the fixed frame. The annular seats are rotatably fitted onto the outside of the heat exchange tubes. A flow guiding plate is fixed to the outer side of the annular seats for guiding the hot air. A torsion spring connects the annular seats and the fixed frame. A pulling assembly is provided between the annular seats and the baffles for pulling the annular seats to rotate.

[0011] Further explanation: The pulling assembly includes a guide tube symmetrically fixed to the inner side of the front return plate, a winding wheel fixed circumferentially to the outer side of the annular seat, a pull wire wound on the winding wheel, and the end of the pull wire passing through the guide tube and fixedly connected to the baffle.

[0012] Further explanation includes a collection box placed inside the fixed frame, located below the baffle, to collect falling dust and impurities.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. First, start the drive motor to rotate the V-belt assembly, causing the sealing plate to rotate 90 degrees and stop, thus sealing the ventilation pipe and the baffle to swing upwards to seal the U-shaped plate, which in turn seals the bottom of the frame. Then, when hot air is discharged into the frame through the ventilation pipe, the hot air comes into contact with the heat exchange pipe, which absorbs the heat from the hot air pipe. The absorbed heat comes into contact with water, turning the water into hot water, which is then discharged from the heat exchange pipe. Whenever the heat exchange pipe has been used for a long time, start the electric push rod to move the movable frame, which in turn moves the brush frame to remove the dust and impurities adhering to the outer wall of the heat exchange pipe, preventing dust and impurities from adhering to the outer wall of the heat exchange pipe and affecting heat absorption, thereby improving energy recovery efficiency and effect.

[0015] 2. Under the action of the guide plate and baffle, an S-shaped channel can be formed between the heat exchange tube and the frame. The hot air flows in the S-shaped channel and absorbs heat, so that the hot air is in contact with the heat exchange tube for a longer time. This prevents the heat in the hot air from being discharged from the right ventilation pipe before it is absorbed, thereby improving the heat absorption effect of the hot air.

[0016] 3. With the help of the collection box, whenever the dust and impurities are removed and fall, the collection box can collect and process them, making it more convenient to collect and process the removed dust and impurities. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the brush holder of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the closed plate of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the baffle of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the flow guiding component of this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the torsion spring of this utility model.

[0023] Figure 7 This is a three-dimensional structural diagram of the guide plate of this utility model after it swings.

[0024] Figure 8 This is a three-dimensional structural diagram of the collection frame of this utility model.

[0025] Component names and serial numbers in the diagram: 1_Frame, 2_Ventilation duct, 3_Heat exchange duct, 4_Fixed frame, 5_Fixed bracket, 6_Movable bracket, 7_Brush bracket, 8_Electric push rod, 9_Sealing plate, 91_Worm gear, 92_Worm, 93_V-belt assembly, 94_Drive motor, 95_U-shaped plate, 96_Rotating shaft, 97_Baffle, 10_Annular seat, 101_Guide plate, 1011_Baffle plate, 102_Torsion spring, 103_Winding wheel, 104_Wire conduit, 105_Pull wire, 11_Collection frame. Detailed Implementation

[0026] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, and lateral, also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0027] Example: An energy recovery device for a green and environmentally friendly ventilation system. Please refer to [link / reference]. Figures 1-4 As shown, the system includes a frame 1 and ventilation pipes 2 installed on the left and right sides of the frame 1. The ventilation pipes 2 and the frame 1 are each divided into two cavities. A fixed frame 5 is symmetrically fixed to the lower inner side of the frame 1. A heat exchange pipe 3 is fixedly connected between the fixed frame 5 and the top of the frame 1. A fixed frame 4 is fixedly connected to the bottom outer side of the frame 1. The system also includes movable frames 6, brush holders 7, electric push rods 8, and blocking components. Four movable frames 6 are evenly spaced and slidably connected to the top of the frame 1. Brush holders 7 are fixedly connected between the bottom ends of the movable frames 6 on the left and right sides. Located inside the frame 1 and in contact with the heat exchange tube 3, the frame 1 has electric push rods 8 symmetrically fixed to its front and rear sides. The telescopic rod ends of the four electric push rods 8 are respectively fixedly connected to the upper part of the four movable frames 6. The electric push rods 8 are used to drive the movable frames 6 to move up and down, and the movable frames 6 drive the brush frame 7 to move up and down, so that the brush frame 7 can remove the dust and impurities attached to the outer wall of the heat exchange tube 3. The blocking component is installed between the ventilation pipe 2 and the fixed frame 4. When the blocking component is in operation, the blocking component can block the hot air.

[0028] Please see Figure 3 and Figure 4As shown, the blocking assembly includes a sealing plate 9, a worm gear 91, a worm 92, a V-belt assembly 93, a drive motor 94, and a sealing component. Sealing plates 9 are evenly spaced and rotatably connected to the ventilation pipes 2 near the frame 1 on both sides. Three sealing plates 9 form a group on the front, and three sealing plates 9 form a group on the rear. The sealing plates 9 can block hot air. A worm gear 91 is fixedly fitted to the top of the shaft of the sealing plate 9. Worms 92 are symmetrically rotatably connected to the top of the ventilation pipes 2 near the frame 1, and the worms 92 mesh with the worm gears 91. Drive motors 94 are installed on the upper part of both the front and rear sides of the frame 1. The output shafts of the front and rear drive motors 94 are connected to the outer ends of the front and rear worms 92 via V-belt assemblies 93. The V-belt assembly 93 consists of three pulleys and a flat belt. Two pulleys are fixedly mounted on the outer ends of the worm gears 92 on the left and right sides respectively, and another pulley is fixedly mounted on the output shaft of the drive motor 94. A flat belt is wound between the three pulleys. A sealing component is provided between the sealing plate 9 and the frame 1. When the sealing component is in operation, it can seal the bottom of the frame 1. The sealing component includes a shaped plate 95, a rotating shaft 96 and a baffle 97. The shaped plate 95 is symmetrically fixed to the bottom of the frame 1. Three rotating shafts 96 are evenly spaced and rotated between the upper parts of the left and right sides of the shaped plate 95. The left and right ends of the rotating shafts 96 are respectively connected to the bottom ends of the shafts of the sealing plates 9 on the left and right sides through bevel gear assemblies. A baffle 97 is fixedly mounted in the middle of the rotating shaft 96. When the baffle 97 swings upward to a horizontal state, it can seal the bottom of the frame 1.

[0029] First, connect the left and right ventilation pipes 2 to the machine, then connect the heat exchange pipe 3 to a water source and drain the water into the heat exchange pipe 3. The water then flows within the heat exchange pipe 3. Next, start the drive motor 94 to drive the V-belt assembly 93 to rotate. The rotation of the V-belt assembly 93 drives the left and right worm gears 92 to rotate. The worm gears 92 drive the left and right worm wheels 91 to rotate. The worm wheels 91 drive the sealing plate 9 to rotate 90 degrees. The sealing plate 9 stops rotating 90 degrees and closes the ventilation pipe 2. At the same time, the rotation of the sealing plate 9 also drives the rotating shaft 96 to rotate through the bevel gear assembly. The rotating shaft 96 drives the baffle 97 to swing upward 90 degrees. The baffle 97 closes the U-shaped plate 95, which in turn closes the bottom of the frame 1. Turn off the drive motor 94. The sealing plate 9 stops rotating and the baffle 97 stops swinging. Then, hot air passes through... The left ventilation duct 2 discharges into the frame 1. Hot air comes into contact with the heat exchange tube 3, which absorbs the heat from the hot air. The water inside the heat exchange tube 3 also absorbs the heat, turning the water into hot water. The hot water is then discharged through the heat exchange tube 3 for further use. Simultaneously, the hot air that has had its heat absorbed continues to flow and is discharged through the right ventilation duct 2 for further processing. In this way, the heat exchange tube 3 and water work together to absorb the heat from the hot air, thus recovering energy and making full use of it. However, during energy recovery, dust and impurities mixed in with the hot air adhere to the outer wall of the heat exchange tube 3. When a large amount of dust and impurities adhere to the outer wall of the heat exchange tube 3, the front drive motor 94 is activated, which drives the worm gear 92 to rotate in the opposite direction via the V-belt assembly 93. The worm gear 91 drives the front sealing plate 9 to rotate 90 degrees in the opposite direction to reset. The reset of the front sealing plate 9 seals the cavity on the front side of the ventilation pipe 2, preventing hot air from entering the cavity on the front side of the frame 1 and contacting the heat exchange tube 3. Hot air can only enter the frame 1 from the rear cavity of the ventilation pipe 2 to contact the heat exchange tube 3. This eliminates the need to stop the machine to clean dust and impurities from the outer wall of the heat exchange tube 3, thus ensuring energy recovery efficiency. The reverse rotation of the front sealing plate 9 drives the rotating shaft 96 to rotate in the opposite direction via the bevel gear assembly. The rotating shaft 96 drives the front baffle 97 to swing downwards and reset. The front baffle 97 stops sealing the front return plate 95, which activates the front electric push rod 8. The extension and retraction of the front electric push rod 8 moves the front movable frame 6 up and down. The movement of the front brush holder 7 causes it to move up and down, removing dust and impurities adhering to the outer wall of the front half of the heat exchange tube 3. The removed dust and impurities fall from the frame 1 into the front molded plate 95, and then fall into the fixed frame 4. Once the dust and impurities adhering to the outer wall of the front half of the heat exchange tube 3 are cleaned, the front electric push rod 8 is closed, the front movable frame 6 stops moving the front brush holder 7 up and down, and the front drive motor 94 is started to rotate, causing the front sealing plate 9 to rotate 90 degrees to stop and close the cavity on the front side of the ventilation pipe 2, and the front baffle 97 to swing upward 90 degrees to close the front molded plate 95. Following the above operation, the rear drive motor 94 is started to drive the V-belt assembly 93 to rotate in the opposite direction and reset.The rear sealing plate 9 is reset to close the cavity behind the ventilation pipe 2, and the rear baffle 97 stops swinging downwards, closing the rear return plate 95. Then, the rear electric push rod 8 is activated, which drives the rear brush holder 7 to move up and down through the rear movable frame 6. The rear brush holder 7 moves up and down to remove dust and impurities adhering to the outer wall of the rear half of the heat exchange tube 3. The removed dust and impurities fall into the fixed frame 4 through the rear return plate 95. After the dust and impurities adhering to the outer wall of the rear half of the heat exchange tube 3 are cleaned, the rear electric push rod 8 is closed, and the rear drive motor 94 is activated, causing the rear sealing plate 9 to stop rotating, closing the cavity behind the ventilation pipe 2, and the rear baffle 97 swings upwards to close the rear return plate 95. In this way, the dust and impurities adhering to the outer wall of the heat exchange tube 3 can be cleaned periodically to prevent dust and impurities from adhering to the outer wall of the heat exchange tube 3 and affecting heat absorption, thereby improving energy recovery efficiency and effect. When the hot air stops being discharged into the ventilation duct 2, the drive motor 94 is started, causing the sealing plate 9 to rotate and reset, closing the ventilation duct 2 and the baffle 97 to swing downwards and reset. Then, the dust and impurities inside the fixed frame 4 are removed.

[0030] Please see Figures 5-7 As shown, it also includes a flow guiding assembly installed between the fixed frame 5 and the baffle 97. The flow guiding assembly includes an annular seat 10, a flow guiding plate 101, a partition 1011, a torsion spring 102, and a pulling assembly. The partitions 1011 are evenly spaced and fixed on the heat exchange tube 3. The annular seat 10 is rotatably connected to the left front side and right rear side of the fixed frame 5 on both the front and rear sides. The annular seat 10 is rotatably fitted onto the outside of the heat exchange tube 3. The flow guiding plate 101 is fixed to the outer side of the annular seat 10. When the flow guiding plate 101 swings 90 degrees, the flow guiding plate 101 can guide the hot air. A torsion spring 102 is connected between the lower side and the top of the fixed frame 5. A pulling component is provided between the annular seat 10 and the baffle 97. When the pulling component is in operation, it can pull the annular seat 10 to rotate. The pulling component includes a winding wheel 103, a wire tube 104 and a pull wire 105. The wire tube 104 is symmetrically fixed to the inner side of the front and rear eccentric plates 95 that are far apart from each other. The winding wheel 103 is fixed to the lower outer side of the annular seat 10 along the circumference. The pull wire 105 is wound on the winding wheel 103. The tail end of the pull wire 105 passes through the wire tube 104 and is fixedly connected to the lower part of the baffle 97.

[0031] Initially, the torsion spring 102 is in a compressed state. When the baffle 97 swings upward to close the guide plate 95, the upward swing of the baffle 97 causes the pull wire 105 to loosen. Due to the action of the torsion spring 102, the annular seat 10 rotates, driving the winding wheel 103 to rotate. The rotation of the winding wheel 103 winds up the loosened pull wire 105. At the same time, the rotation of the annular seat 10 also causes the left and right guide plates 101 to swing inward by ninety degrees. The left guide plate 101 blocks the left front side of the heat exchange tube 3, and the right guide plate 101 blocks the right rear side of the heat exchange tube 3. The guide plate 101 and the partition plate 1011 cooperate to form an S-shaped channel between the heat exchange tube 3 and the frame 1, so that hot air is discharged into the frame 1. Inside, hot air flows within the S-shaped channel and is absorbed by the heat exchange tube 3. Due to the S-shaped channel, the hot air flows within the frame 1 for a longer time, resulting in better heat absorption by the heat exchange tube 3. When the baffle 97 swings downward to reset, it drives the pull wire 105 downward. The pull wire 105, through the guide tube 104, drives the winding wheel 103 to rotate in the opposite direction. The reverse rotation of the winding wheel 103 winds up the pull wire 105, which in turn drives the winding wheel 103 to rotate in the opposite direction. This rotation, in turn, drives the annular seat 10 to rotate in the opposite direction, causing the left and right guide plates 101 to swing outward to reset. This prevents the heat in the hot air from being discharged from the right ventilation pipe 2 before it is absorbed, thereby improving the heat absorption effect.

[0032] Please see Figure 8 As shown, it also includes a collection frame 11. The collection frame 11 is placed inside the fixed frame 4 and is located below the baffle 97. The collection frame 11 can collect falling dust and impurities.

[0033] When dust and impurities fall through the guide plate 95 into the fixed frame 4, they fall into the collection frame 11, where they are collected. When the collection frame 11 contains a suitable amount of dust and impurities, it is removed from the fixed frame 4 to empty the dust and impurities. After all the dust and impurities have been emptied, the collection frame 11 is placed back onto the fixed frame 4. This makes it easier to collect and process the removed dust and impurities.

[0034] Finally, it is necessary to note that the above content is only used to help understand the technical solution of this utility model and should not be construed as a limitation on the scope of protection of this utility model; any non-essential improvements and adjustments made by those skilled in the art based on the above content of this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A green and environmentally friendly ventilation system energy recovery device, comprising a frame (1) and ventilation pipes (2) installed on both sides of the frame (1), wherein the ventilation pipes (2) and the frame (1) are each divided into two cavities, a fixing frame (5) is symmetrically fixed to the inner side of the frame (1), a heat exchange pipe (3) is fixedly connected between the fixing frame (5) and the frame (1), and a fixing frame (4) is fixed to the bottom of the frame (1), characterized in that, It also includes a movable frame (6), a brush holder (7), an electric push rod (8), and a blocking assembly. The movable frame (6) is evenly spaced and slidably connected to the top of the frame (1). The brush holder (7) is fixed between the bottom ends of the movable frames (6) on the same side. The brush holder (7) is located inside the frame (1) and contacts the heat exchange tube (3). The electric push rod (8) is symmetrically fixed on both sides of the frame (1). The telescopic rod end of the electric push rod (8) is fixedly connected to the movable frame (6). The electric push rod (8) is used to drive the movable frame (6) to move up and down. The movable frame (6) drives the brush holder (7) to move up and down, so that the brush holder (7) can remove the dust and impurities attached to the outer wall of the heat exchange tube (3). The blocking assembly is installed between the ventilation pipe (2) and the fixed frame (4) to block the hot air.

2. The energy recovery device for a green and environmentally friendly ventilation system according to claim 1, characterized in that, The blocking assembly includes a set of three sealing plates (9) that are rotatably connected to the ventilation pipe (2) at uniform intervals. The three sealing plates (9) on the front side form a group and the three sealing plates (9) on the rear side form a group to block the hot air. A worm gear (91) is fixedly mounted on the top of the shaft of the sealing plate (9). A worm (92) that meshes with the worm gear (91) is symmetrically rotatably connected to the top of the ventilation pipe (2). A drive motor (94) is installed on both sides of the frame (1). A V-belt assembly (93) is connected between the output shaft of the drive motor (94) and the end of the worm (92). A sealing assembly is provided between the sealing plate (9) and the frame (1) to seal the bottom of the frame (1).

3. The energy recovery device for a green and environmentally friendly ventilation system according to claim 2, characterized in that, The enclosure assembly includes a U-shaped plate (95) symmetrically fixed to the bottom of the frame (1). Rotary shafts (96) are evenly spaced between the two sides of the U-shaped plate (95) and are rotatably connected. The end of the rotary shaft (96) is connected to the end of the shaft of the enclosure plate (9) through a bevel gear assembly. A baffle (97) is fixedly mounted on the rotary shaft (96) for closing the bottom of the frame (1).

4. The energy recovery device for a green and environmentally friendly ventilation system according to claim 3, characterized in that, It also includes a flow guiding component, which includes baffles (1011) that are evenly spaced and fixed to the heat exchange tube (3). The left front side and right rear side of the fixed frame (5) are rotatably connected to annular seats (10). The annular seats (10) are rotatably fitted on the outside of the heat exchange tube (3). A flow guiding plate (101) is fixed to the outer side of the annular seats (10) for guiding the hot air. A torsion spring (102) is connected between the annular seats (10) and the fixed frame (5). A pulling component is provided between the annular seats (10) and the baffle (97) for pulling the annular seats (10) to rotate.

5. The energy recovery device for a green and environmentally friendly ventilation system according to claim 4, characterized in that, The pulling assembly includes a guide tube (104) symmetrically fixed to the inner side of the front return plate (95), a winding wheel (103) fixed circumferentially to the outer side of the annular seat (10), a pull line (105) wound on the winding wheel (103), and the tail end of the pull line (105) passing through the guide tube (104) and fixedly connected to the baffle (97).

6. The energy recovery device for a green and environmentally friendly ventilation system according to claim 5, characterized in that, It also includes a collection box (11) placed inside the fixed frame (4), which is located below the baffle (97) to collect falling dust and impurities.

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