Heat recovery device of dryer

Abstract

The heat recovery device comprises a treatment box and a heat exchange pipe, the treatment box communicates with an air outlet pipe, a water inlet and a water outlet are formed in the top of the treatment box, one end of the heat exchange pipe sequentially penetrates through the water inlet and the water outlet, the side wall of the treatment box is connected with a knocking plate and a driving assembly, and the driving assembly is used for driving the knocking plate to move in the vertical direction. The treatment box communicates with a drainage pipe. The knocking plate knocks the treatment box, so that the treatment box and the heat exchange pipe vibrate, the heat exchange pipe vibrates, water drops on the surface of the heat exchange pipe drop to the bottom of the treatment box and are discharged out of the treatment box through the drainage pipe, water on the surface of the heat exchange pipe is reduced, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of dryers, and in particular to a heat recovery device for a dryer. Background Art

[0002] After the fabric is printed and dyed, it is often necessary to dry it through drying equipment. During the fabric drying process, a large amount of high-temperature exhaust gas is generated, and direct discharge will cause waste and affect the environment.

[0003] The Chinese patent with the authorization announcement number CN212006678U discloses a heat recovery device for a dryer, including a bottom plate, a support column is arranged at the upper end of the bottom plate, a shell is arranged at the upper end of the support column, an air outlet pipe is arranged at the top of the shell, a treatment box is arranged at the end of the air outlet pipe away from the shell, a water inlet pipe is arranged on the outer wall of the shell, a horizontal water storage pipe is arranged at one end of the water inlet pipe, and a vertical water storage pipe is arranged on one side of the horizontal water storage pipe. High-temperature exhaust gas enters the shell, heats the clean water in the horizontal water storage pipe and the vertical water storage pipe, so that heat is stored in the clean water.

[0004] Regarding the above-mentioned related technologies, the high-temperature exhaust gas generated by the dryer usually carries water vapor. When the water vapor comes into contact with the water storage pipe, the water vapor will condense into water due to cooling and adsorb on the side wall of the water storage pipe, which may affect the heat exchange efficiency. Utility Model Content

[0005] In order to reduce water droplets on the surface of the heat exchange tube and improve the heat exchange efficiency, the present application provides a heat recovery device for a dryer.

[0006] The heat recovery device of a dryer provided in this application adopts the following technical solution:

[0007] A heat recovery device for a dryer comprises a processing box and a heat exchange tube. The processing box is used to be connected to a dryer body. The processing box is connected to an air outlet duct. A water inlet and a water outlet are provided on the top of the processing box. One end of the heat exchange tube passes through the water inlet and the water outlet in sequence. A knocking plate and a driving assembly are connected to the side wall of the processing box. The knocking plate is used to knock the processing box. The driving assembly is used to drive the knocking plate to move in a vertical direction. The bottom of the processing box is connected to a drain pipe.

[0008] By adopting the above technical scheme, the high-temperature exhaust gas generated by the dryer body is discharged into the treatment box, and the water in the heat exchange tube is heated. The water vapor carried by the high-temperature exhaust gas condenses into water droplets after contacting the heat exchange tube and adsorbed on the surface of the heat exchange tube. The knocking plate is driven by the driving component to move in the vertical direction, so that the knocking plate knocks the treatment box, causing the treatment box and the heat exchange tube to vibrate. The heat exchange tube vibrates, causing the water droplets on the surface of the heat exchange tube to drip to the bottom of the treatment box and be discharged from the treatment box through the drain pipe, thereby reducing the water on the surface of the heat exchange tube and improving the heat exchange efficiency.

[0009] Optionally, the knocking plate includes a connecting plate and a knocking block, the knocking block is connected to the bottom of the connecting plate, the knocking block is used to knock the processing box, the top of the processing box is connected to a support plate, the length direction of the support plate is consistent with the vertical direction, the support plate is provided with a sliding hole, the length direction of the sliding hole is consistent with the vertical direction, the driving assembly includes a first motor, a first rod, a second rod, and a slider, the first motor is connected to a side wall of one side of the processing box, the output shaft of the first motor is connected to a disc, one end of the first rod is rotatably connected to the eccentric point of the disc, the first rod is hinged to one end of the second rod, the slider is slidably connected in the sliding hole along the vertical direction, the other end of the second rod is hinged to one end of the slider, and the other end of the slider is connected to the connecting plate.

[0010] By adopting the above technical solution, the first motor drives the disc to rotate, the first rod follows the disc to rotate, the first rod drives the second rod to move, the second rod drives the slider to slide in the vertical direction and connect to the sliding hole, the connecting plate follows the movement of the slider, and drives the knocking block to move in the vertical direction and approach or move away from the processing box, so that the knocking block knocks the processing box.

[0011] Optionally, the bottom of the treatment box is connected to a water collecting tank, the length direction of the water collecting tank is consistent with the width direction of the treatment box, the drain pipe is connected to the bottom of the water collecting tank, and the drain pipe is connected to a first valve, and the first valve is used to control the switch of the drain pipe.

[0012] By adopting the above technical solution, water dripping from the surface of the heat exchange tube to the bottom of the treatment box is collected in the water collecting box. When draining, the first valve opens the drain pipe, and part of the water in the water collecting box is discharged and part is retained, so as to avoid the water in the water collecting box from being emptied as much as possible, and then the high-temperature exhaust gas in the treatment box is discharged from the treatment box through the drain pipe.

[0013] Optionally, two guide plates are connected in the treatment box, and the length direction of the guide plates is consistent with the width direction of the treatment box. The two guide plates are spaced apart along the length direction of the treatment box, and the two guide plates are spaced apart to form a gap for placing a water collecting tank. One guide plate is connected to an inner wall of one side of the treatment box along the length direction of the treatment box at one end along the width direction, and the other guide plate is connected to an inner wall of the other side of the treatment box at one end along the width direction. The guide plate is inclined toward one side of the water collecting tank at one end close to the water collecting tank, and is connected to the top of the water collecting tank at one end close to the water collecting tank.

[0014] By adopting the above technical solution, water on the surface of the heat exchange tube falls to the top of the guide plate and enters the water collecting tank along the guide plate. The guide plate is inclined to avoid water accumulation at the bottom of the treatment tank as much as possible.

[0015] Optionally, the guide plates are connected to a scraper and a moving component. The length direction of the scraper is consistent with the width direction of the processing box. The bottom of the scraper is in contact with the guide plate. The moving component is used to drive the scraper to slide along the width direction of the guide plate and is connected to the top of the guide plate. When the scraper moves, the bottom of the scraper is always in contact with the top of the guide plate.

[0016] By adopting the above technical solution, when there is water on the top of the guide plate, the moving component drives the scraper to move along the width direction of the guide plate, and the scraper pushes the water on the top of the guide plate into the water collecting tank, thereby speeding up the speed at which water enters the water collecting tank and facilitating water collection.

[0017] Optionally, a movable groove is opened at the top of the guide plate, and the length direction of the movable groove is consistent with the width direction of the guide plate. The movable assembly includes a screw rod, a second motor, and a movable block. The length direction of the screw rod is consistent with the width direction of the guide plate. The screw rod is rotatably connected in the movable groove, the second motor is connected to the outer wall of the processing box, the output shaft of the second motor is connected to one end of the screw rod, the movable block is threadedly sleeved on the screw rod, and the movable block is slidably connected in the movable groove along the width direction of the guide plate, and the bottom of the scraper is connected to the slider.

[0018] By adopting the above technical solution, the second motor drives the screw to rotate, so that the moving block slides along the width direction of the guide plate and is connected in the moving groove, and the scraper follows the moving block to move, thereby pushing water into the collection tank.

[0019] Optionally, a drainage hole is provided on one side of the movable groove close to the water collecting tank, and the drainage hole connects the movable groove and the water collecting tank.

[0020] By adopting the above technical solution, water droplets on the surface of the heat exchange tube fall into the moving groove and enter the collecting groove through the drainage hole. Additional drainage holes are provided to avoid water droplets falling into the moving groove and accumulating in the moving groove as much as possible.

[0021] Optionally, an observation window is opened on one side of the water collecting tank, a glass plate is connected to the observation window, the glass plate is provided with scale lines, and the scale lines are used to display the water volume in the water collecting tank.

[0022] By adopting the above technical solution, when the drain pipe is opened to allow water in the water collecting tank to be discharged from the water collecting tank, the water volume in the water collecting tank can be observed through the observation window, so that the opening and closing of the drain pipe can be controlled according to the water volume in the water collecting tank.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The high-temperature exhaust gas of the dryer is discharged into the treatment box and heats the water in the heat exchange tube. The water vapor carried by the high-temperature exhaust gas condenses into water droplets after contacting the heat exchange tube and adsorbs on the surface of the heat exchange tube. The knocking plate is driven by the driving component to move in the vertical direction, so that the knocking plate knocks the treatment box, causing the treatment box and the heat exchange tube to vibrate. The heat exchange tube vibrates, causing the water droplets on the surface of the heat exchange tube to drip to the bottom of the treatment box and be discharged from the treatment box through the drain pipe, thereby reducing the water on the surface of the heat exchange tube and improving the heat exchange efficiency;

[0025] 2. The first motor drives the disc to rotate, the first rod follows the disc to rotate, the first rod drives the second rod to move, the second rod drives the slider to slide in the vertical direction and connect to the sliding hole, the connecting plate follows the slider to move, and drives the knocking block to move in the vertical direction and approach or move away from the processing box, so that the knocking block knocks the processing box;

[0026] 3. The water on the surface of the heat exchange tube falls to the top of the guide plate and enters the water collecting tank along the guide plate. The guide plate is set at an angle to avoid water accumulation at the bottom of the treatment tank as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of this embodiment.

[0028] Figure 2 It is a top view of this embodiment.

[0029] Figure 3 This embodiment Figure 2 Sectional view along AA direction.

[0030] Figure 4 This embodiment Figure 1 Magnified view of part B.

[0031] Figure 5 This embodiment Figure 3 Magnified view of part C.

[0032] Figure 6 This embodiment Figure 3 Magnified view of part D.

[0033] Description of reference numerals: 100, treatment box; 110, air inlet pipe; 120, air outlet pipe; 130, water inlet; 140, water outlet; 150, support plate; 151, sliding hole; 160, water collecting box; 161, observation window; 162, glass plate; 163, scale line; 170, drain pipe; 171, valve; 180, mounting plate; 200, heat exchange tube; 210, water inlet pipe; 220, water outlet pipe; 221, Water pump; 300, knocking plate; 310, connecting plate; 320, knocking block; 321, rubber layer; 400, driving assembly; 410, first motor; 411, disc; 420, first rod; 430, second rod; 440, slider; 500, guide plate; 510, scraper; 520, moving groove; 521, drainage hole; 600, moving assembly; 610, screw rod; 620, moving block; 630, second motor. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a heat recovery device for a dryer. Figure 1 and Figure 2 The heat recovery device of the dryer includes a processing box 100, one end of the processing box 100 along its length direction is connected to an air inlet pipe 110, the air inlet pipe 110 is used to communicate with the dryer body, and the other end of the processing box 100 is connected to an air outlet pipe 120.

[0036] Reference Figure 1 and Figure 3 The treatment box 100 is connected to a heat exchange tube 200. A water inlet 130 and a water outlet 140 are provided on the top of the treatment box 100. The water inlet 130 and the water outlet 140 are spaced apart along the length direction of the treatment box 100. One end of the heat exchange tube 200 passes through the water inlet 130 and the water outlet 140 in sequence, and one end of the heat exchange tube 200 is arranged in an S shape in the treatment box 100. One end of the heat exchange tube 200 is connected to a water inlet pipe 210, and the other end of the heat exchange tube 200 is connected to a water outlet pipe 220. The water inlet pipe 210 is used to input water into the heat exchange tube 200. A water pump 221 is connected to the top of the treatment box 100, and the water pump 221 is connected to the water outlet pipe 220. The top of the processing box 100 is connected with a knocking plate 300 and a driving assembly 400. The driving assembly 400 is used to drive the knocking plate 300 to move in the vertical direction and approach or move away from the processing box 100. The knocking plate 300 is used to knock the top of the processing box 100. When there is water on the surface of the heat exchange tube 200, the driving assembly 400 drives the knocking plate 300 to move in the vertical direction, so that the knocking plate 300 knocks the processing box 100, thereby causing the heat exchange tube 200 to vibrate and the water on the surface of the heat exchange tube 200 to fall off, thereby reducing the water on the surface of the heat exchange tube 200 and improving the heat exchange efficiency.

[0037] Reference Figure 3 and Figure 4 , a support plate 150 is connected to the top of the processing box 100, the length direction of the support plate 150 is consistent with the vertical direction, and a sliding hole 151 is opened on the support plate 150, and the length direction of the sliding hole 151 is consistent with the vertical direction. The driving assembly 400 includes a first motor 410, a first rod 420, a second rod 430, and a slider 440. The first motor 410 is connected to the side wall of the processing box 100 along one side of its length direction, and the output shaft of the first motor 410 is connected to a disk 411, and the central axis of the disk 411 is colinear with the central axis of the output shaft of the first motor 410. One end of the first rod 420 is rotatably connected to the eccentric part of the disk 411, the first rod 420 is hinged to one end of the second rod 430, and the second rod 430 is hinged to one end of the slider 440. The slider 440 is slidably connected to the sliding hole 151 along the vertical direction, and the other end of the slider 440 is connected to the knocking plate 300.

[0038] Reference Figure 4 The knocking plate 300 includes a connecting plate 310 and a knocking block 320. The length direction of the connecting plate 310 is consistent with the length direction of the processing box 100. One end of the connecting plate 310 is connected to the end of the slider 440 away from the second rod 430. The knocking block 320 is connected to the other end of the connecting plate 310. The knocking block 320 is connected to the bottom of the connecting plate 310. The bottom of the knocking block 320 is connected to a rubber layer 321, and the rubber layer 321 is in contact with the top of the processing box 100.

[0039] The first motor 410 drives the disc 411 to rotate, the first rod 420 rotates following the disc 411, the second rod 430 moves following the first rod 420, and the second rod 430 drives the slider 440 to slide in the vertical direction and connect to the sliding hole 151, thereby driving the connecting plate 310 and the knocking block 320 to approach or move away from the processing box 100, so that the knocking block 320 continuously knocks the processing box 100.

[0040] Reference Figure 1 and Figure 3 The bottom of the treatment box 100 is connected to a water collecting box 160, the length direction of the water collecting box 160 is consistent with the width direction of the treatment box 100, and the bottom of the water collecting box 160 is connected to a drain pipe 170, and the drain pipe 170 is connected to a valve 171, and the valve 171 is used to control the switch of the drain pipe 170. An observation window 161 is opened on one side of the water collecting box, and the length direction of the observation window 161 is consistent with the vertical direction. A glass plate 162 is connected in the observation window 161, and the glass plate 162 is provided with a scale line 163, and the scale line 163 extends from bottom to top along the vertical direction.

[0041] Reference Figure 3 and Figure 5The inner walls of both sides of the treatment box 100 along the length direction are connected with guide plates 500. The length direction of the guide plates 500 is consistent with the width direction of the treatment box 100. The two guide plates 500 are arranged at intervals along the length direction of the treatment box 100. The two guide plates 500 are arranged at intervals to form a gap for the water collecting box 160 to be placed. One end of a guide plate 500 along the width direction is connected to the inner wall of the treatment box 100, and the other end of the guide plate 500 is inclined toward one side of the water collecting box 160. The bottom ends of the two guide plates 500 are respectively connected to the tops of both ends of the water collecting box 160 along the width direction of the water collecting box 160.

[0042] Reference Figure 3 and Figure 5 , the guide plates 500 are all connected with a scraper 510, the length direction of the scraper 510 is consistent with the width direction of the treatment box 100, the scraper 510 is tilted, and the bottom end of the scraper 510 is tilted toward the side of the water collecting tank 160. The bottom of the scraper 510 contacts the guide plate 500. The guide plates 500 are also connected with a moving assembly 600. A moving groove 520 is opened at the top of the guide plate 500, and the length direction of the moving groove 520 is consistent with the width direction of the guide plate 500. The moving assembly 600 includes a screw rod 610, a moving block 620, and a second motor 630. The length direction of the screw rod 610 is consistent with the width direction of the guide plate 500, and both ends of the screw rod 610 along its length direction are rotatably connected in the moving groove 520. The moving block 620 is slidably connected in the moving groove 520 along the width direction of the guide plate 500, and the moving block 620 is threadedly sleeved on the screw rod 610. The processing box 100 is connected to mounting plates 180 on both sides along its length direction, the second motor 630 is connected to the mounting plates 180, and the output shaft of the second motor 630 passes through the side wall of the processing box 100 and the inner wall of the moving groove 520 along the width direction of the guide plate 500 and is connected to one end of the screw rod 610. The bottom end of the scraper 510 is connected to the moving block 620.

[0043] Reference Figure 3 and Figure 6 A drainage hole 521 is opened on the inner wall of the movable groove 520 along its length direction and close to one end of the water collecting tank 160 , and the drainage hole 521 connects the movable groove 520 and the water collecting tank 160 in the length direction.

[0044] After the water drops on the surface of the heat exchange tube 200 fall to the top of the guide plate 500, the second motor 630 drives the screw 610 to rotate, so that the moving block 620 and the scraper 510 move along the width direction of the guide plate 500. The scraper 510 pushes the water on the surface of the guide plate 500 into the water collecting tank 160. The water in the water collecting tank 160 is discharged from the water collecting tank 160 through the drain pipe 170, thereby facilitating water recovery.

[0045] The implementation principle of a heat recovery device of a dryer in an embodiment of the present application is as follows: the high-temperature exhaust gas of the dryer body enters the processing box 100 through the air inlet pipe 110, and the water vapor in the high-temperature exhaust gas condenses into water droplets on the surface of the heat exchange tube 200. The first motor 410 drives the disc 411 to rotate, and the first rod 420 rotates following the disc 411. The first rod 420 drives the second rod 430 to move, and the second rod 430 drives the slider 440 to slide in the vertical direction and connect to the sliding hole 151. The connecting plate 310 and the knocking block 320 move along the vertical direction following the slider 440, so that the knocking block 320 continuously knocks on the top of the processing box 100, thereby causing the heat exchange tube 200 to vibrate, and the water droplets on the surface of the heat exchange tube 200 drip onto the top of the guide plate 500, and some of the water droplets slide along the guide plate 500 into the water collecting tank 160. The second motor 630 drives the screw rod 610 to rotate, so that the moving block 620 is slidably connected to the moving groove 520 along the width direction of the guide plate 500, and the scraper 510 follows one end of the moving block 620. The scraper 510 pushes the water drops on the top of the guide plate 500 into the water collecting box 160. When there is water in the water collecting box 160, the drain pipe 170 is opened through the valve 171 to discharge the water in the water collecting box 160. In this way, the water drops on the surface of the heat exchange tube 200 are reduced, thereby improving the heat exchange efficiency.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heat recovery device for a dryer, comprising a processing box (100) and a heat exchange pipe (200), wherein the processing box (100) is used to communicate with a dryer body, the processing box (100) is connected to an air outlet pipe (120), a water inlet (130) and a water outlet (140) are provided on the top of the processing box (100), one end of the heat exchange pipe (200) passes through the water inlet (130) and the water outlet (140) in sequence, and the device is characterized in that: The side wall of the processing box (100) is connected to a knocking plate (300) and a driving assembly (400); the knocking plate (300) is used to knock the processing box (100); the driving assembly (400) is used to drive the knocking plate (300) to move in a vertical direction; and the bottom of the processing box (100) is connected to a drainage pipe (170).

2. The heat recovery device for a dryer according to claim 1, characterized in that: The knocking plate (300) comprises a connecting plate (310) and a knocking block (320), wherein the knocking block (320) is connected to the bottom of the connecting plate (310), and the knocking block (320) is used to knock the processing box (100). The top of the processing box (100) is connected to a support plate (150), wherein the length direction of the support plate (150) is consistent with the vertical direction, and the support plate (150) is provided with a sliding hole (151), wherein the length direction of the sliding hole (151) is consistent with the vertical direction. The driving component (400) comprises a first motor (410), a first rod (420), and a first Two rods (430) and a slider (440), the first motor (410) is connected to a side wall of a processing box (100), the output shaft of the first motor (410) is connected to a disk (411), one end of the first rod (420) is rotatably connected to an eccentric portion of the disk (411), the first rod (420) is hinged to one end of the second rod (430), the slider (440) is slidably connected to a sliding hole (151) in a vertical direction, the other end of the second rod (430) is hinged to one end of the slider (440), and the other end of the slider (440) is connected to a connecting plate (310).

3. The heat recovery device for a dryer according to claim 1, characterized in that: The bottom of the treatment box (100) is connected to a water collecting box (160); the length direction of the water collecting box (160) is consistent with the width direction of the treatment box (100); the drainage pipe (170) is connected to the bottom of the water collecting box (160); the drainage pipe (170) is connected to a first valve (171); the first valve (171) is used to control the opening and closing of the drainage pipe (170).

4. The heat recovery device for a dryer according to claim 3, characterized in that: Two guide plates (500) are connected inside the treatment box (100); the length direction of the guide plates (500) is consistent with the width direction of the treatment box (100); the two guide plates (500) are arranged at intervals along the length direction of the treatment box (100); the two guide plates (500) are spaced apart to form a gap for placing a water collecting box (160); one end of one guide plate (500) along its width direction is connected to an inner wall of one side of the treatment box (100) along the length direction of the treatment box (100); and the other end of the other guide plate (500) along its width direction is connected to an inner wall of the other side of the treatment box (100); one end of the guide plate (500) close to the water collecting box (160) is arranged to be inclined toward one side of the water collecting box (160); and one end of the guide plate (500) close to the water collecting box (160) is connected to the top of the water collecting box (160).

5. The heat recovery device for a dryer according to claim 4, characterized in that: The guide plates (500) are connected to a scraper (510) and a moving assembly (600); the length direction of the scraper (510) is consistent with the width direction of the processing box (100); the bottom of the scraper (510) is in contact with the guide plate (500); the moving assembly (600) is used to drive the scraper (510) to slide along the width direction of the guide plate (500) and is connected to the top of the guide plate (500); when the scraper (510) moves, the bottom of the scraper (510) is always in contact with the top of the guide plate (500).

6. The heat recovery device for a dryer according to claim 5, characterized in that: A moving groove (520) is provided at the top of the guide plate (500), and the length direction of the moving groove (520) is consistent with the width direction of the guide plate (500). The moving assembly (600) comprises a screw rod (610), a second motor (630), and a moving block (620). The length direction of the screw rod (610) is consistent with the width direction of the guide plate (500). The screw rod (610) is rotatably connected to the moving groove (520). The second motor (630) is connected to the outer wall of the processing box (100). The output shaft of the second motor (630) is connected to one end of the screw rod (610). The moving block (620) is threadedly sleeved on the screw rod (610). The moving block (620) is slidably connected to the moving groove (520) along the width direction of the guide plate (500). The bottom of the scraper (510) is connected to the slider (440).

7. The heat recovery device for a dryer according to claim 6, characterized in that: A drainage hole (521) is provided on one side of the movable groove (520) close to the water collecting tank (160), and the drainage hole (521) connects the movable groove (520) and the water collecting tank (160).

8. The heat recovery device for a dryer according to claim 3, characterized in that: An observation window (161) is provided on one side of the water collecting tank (160), a glass plate (162) is connected to the inside of the observation window (161), and the glass plate (162) is provided with scale lines (163), and the scale lines (163) are used to display the amount of water in the water collecting tank (160).

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