Air preheater

Abstract

The utility model relates to the technical field of air preheating, in particular to an air preheater which comprises a ventilation pipeline, the right side of the ventilation pipeline is fixedly connected with a control box body, and a lifting assembly is arranged in the control box body. The lifting assembly comprises a first rotating motor, the first rotating motor is fixedly installed in the control box body, a first gear is fixedly connected to the transmission end of the first rotating motor, a second gear is rotatably installed below the first gear, a lead screw is fixedly connected to the interior of the second gear, and a lifting groove is formed in the ventilation pipeline. A lifting shell is movably mounted in the lifting groove, a lifting block is fixedly connected to the outer side of the lifting shell, and a threaded hole is formed in the inner wall of the lifting block. According to the air preheater, the filter plate can be conveniently cleaned or replaced, the air circulation performance is effectively improved, the phenomenon that the filter plate is blocked due to long-time accumulation of dust is avoided, and the practicability and stability are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air preheating, in particular to an air preheater. Background Art

[0002] The air preheater is a heat exchanger that uses the exhaust heat from boilers and other devices to preheat. Its function is to reduce the exhaust temperature of boilers and other equipment, improve thermal efficiency, make the fuel easier to ignite, burn stably and improve combustion efficiency.

[0003] In order to improve the air quality, existing air preheaters often have air filter plates installed inside them to filter impurities in the air. However, when the air preheater is used for a long time, a large amount of impurities will accumulate inside the air filter plate. If the air filter plate cannot be cleaned or replaced, the air circulation may be reduced, and in severe cases, the ventilation duct may be blocked, thereby affecting the normal operation of the air preheater. Utility Model Content

[0004] The purpose of the utility model is to provide an air preheater to solve the problem in the above background technology that if the air filter plate cannot be cleaned or replaced, the air circulation may be reduced, and in serious cases, the ventilation duct may be blocked. To achieve the above purpose, the utility model provides the following technical solutions: an air preheater, including a ventilation duct, a control box is fixedly connected to the right side of the ventilation duct, and a lifting assembly is arranged inside the control box;

[0005] The lifting assembly includes a rotating motor 1, which is fixedly installed inside the control box, a gear 1 is fixedly connected to the transmission end of the rotating motor 1, a gear 2 is rotatably installed below the gear 1, a screw is fixedly connected inside the gear 2, a lifting slot is provided inside the ventilation duct, a lifting shell is movably installed inside the lifting slot, a lifting block is fixedly connected to the outside of the lifting shell, a threaded hole is provided on the inner wall of the lifting block, and a filter plate is movably installed inside the lifting block;

[0006] The gear 2 is meshed and connected with the gear 1, the lifting block is adapted to the lifting slot, the threaded hole is threadedly connected with the screw rod, and the filter plate is distributed in parallel front and back to the inside of the lifting block. The setting of the lifting component, during use, by starting the rotating motor 1, it drives the gear 1 at its transmission end to rotate, and then the gear 2 is meshed and connected with the gear 1, driving the gear 2 and the screw rod to rotate, and at the same time, through the adaptation of the lifting block and the lifting slot and the threaded connection of the threaded hole and the screw rod, the lifting shell can be lifted and lowered and leave the inside of the control box. After that, the staff can easily clean or replace the filter plate, which effectively improves the air circulation and avoids the clogging of the filter plate due to long-term accumulation of dust, effectively improves the practicality and stability, and facilitates the use of the staff.

[0007] Further preferably, the lifting block is provided with a fixing component inside, and the fixing component includes a limiting slide slot, and the limiting slide slot is opened inside the lifting block, and the limiting slide slot is distributed parallel to the inside of the lifting block in the upper and lower directions, and the inner wall of the limiting slide slot is provided with a positioning groove, and the positioning groove is symmetrically distributed to the inner wall of the limiting slide slot, and the outer side of the filter plate is provided with an auxiliary groove 1. The setting of the fixing component, during use, the staff pushes the filter plate to make the rotating roller stuck in the limiting slide slot, and then limits the height of the rotating roller through the limiting slide slot, so that the coil spring contracts, and then when the rotating roller moves to the positioning groove, the coil spring will not be limited and will bounce off, so that the rotating roller is stuck in the positioning groove, thereby effectively improving the stability and safety of the filter plate installation, avoiding the shaking of the filter plate during use, and facilitating the use of the staff.

[0008] Further preferably, the auxiliary groove 1 is distributed parallel to the outside of the filter plate, the inner wall of the auxiliary groove 1 is provided with an auxiliary groove 2, the inside of the auxiliary groove 2 is fixedly connected with a coil spring, the top of the coil spring is fixedly connected with a support rod, and the outer side of the support rod is rotatably connected with a rotating roller.

[0009] Further preferably, a ventilation component is provided inside the ventilation duct, and the ventilation component includes an auxiliary plate, and the auxiliary plate is fixedly installed inside the ventilation duct, and a rotating motor 2 is fixedly installed on the back side of the auxiliary plate, and a fan blade is fixedly installed on the transmission end of the rotating motor 2. The ventilation component is set up, and during use, by starting the rotating motor 2, it drives the fan blades at its transmission end to rotate, thereby accelerating the air to be discharged from the air inlet to the air outlet. In the process of air circulation inside the ventilation duct, the air is preheated by the heating of the heating block and the resistance wire, and then the hot air is discharged through the air outlet, which effectively improves the practicality and convenience, and effectively improves the air circulation speed.

[0010] Further preferably, a heating block is fixedly installed inside the ventilation duct behind the fan blades, and the heating block is distributed in parallel up and down to the inside of the ventilation duct. A resistance wire is fixedly connected to the opposite side of the heating block, and the resistance wire is distributed in parallel front and back to the opposite side of the heating block.

[0011] Further preferably, an air inlet is provided on the front side of the ventilation duct, an air outlet is provided on the back side of the ventilation duct, a heat dissipation groove is provided on the left side of the control box, a strip grille is fixedly installed inside the heat dissipation groove, and the strip grille is distributed vertically and parallelly to the inside of the heat dissipation groove. The installation of the strip grille protects the installation of the rotating motor 1 and extends the service life of the rotating motor 1.

[0012] Further preferably, a handle is fixedly installed on the left side of the filter plate, a support column is fixedly installed on the bottom of the ventilation duct, and an anti-slip pad is fixedly installed on the bottom of the support column. The installation of the anti-slip pad increases the friction with the placement surface and improves the stability and safety of placement.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the setting of the lifting component, during use, by starting the rotating motor 1, it drives the gear 1 at its transmission end to rotate, and then the gear 2 is meshed with the gear 1 to drive the gear 2 and the screw rod to rotate, and at the same time, through the adaptation of the lifting block and the lifting groove and the threaded connection between the threaded hole and the screw rod, the lifting shell can be lifted and left the interior of the control box, and then the staff can clean or replace the filter plate conveniently, which effectively improves the air circulation and avoids the clogging of the filter plate due to the long-term accumulation of dust, effectively improves the practicality and stability, and facilitates the use of the staff.

[0015] In the utility model, the setting of the fixing component is that during use, the staff pushes the filter plate to make the rotating roller stuck in the limiting slide groove, and then limits the height of the rotating roller through the limiting slide groove, so that the spiral spring contracts. Afterwards, when the rotating roller moves to the positioning groove, the spiral spring is not limited and will pop up, so that the rotating roller is stuck in the positioning groove, which effectively improves the stability and safety of the filter plate installation, avoids the filter plate from shaking during use, and is convenient for the staff to use.

[0016] In the utility model, the ventilation component is set up, during use, by starting the rotating motor 2, so that it drives the fan blades at its transmission end to rotate, thereby accelerating the discharge of air from the air inlet to the air outlet. During the circulation of air inside the ventilation duct, the air is preheated by the heating block and the resistance wire, and then the hot air is discharged through the air outlet, which effectively improves the practicality and convenience and effectively increases the air circulation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the front plan structure of the control box of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the filter plate of the utility model from a top view;

[0023] Figure 7 It is a schematic diagram of the planar structure of the ventilation duct of the utility model when viewed from above.

[0024] In the figure: 1. ventilation duct; 2. control box; 3. lifting component; 4. fixing component; 5. ventilation component; 6. air inlet; 7. air outlet; 8. heat dissipation slot; 9. bar grille; 10. handle; 11. support column; 12. anti-skid pad; 301. rotating motor one; 302. gear one; 303. gear two; 304. screw rod; 305. lifting slot; 306. lifting shell; 307. lifting block; 308. threaded hole; 309. filter plate; 401. limiting slide slot; 402. positioning slot; 403. auxiliary slot one; 404. auxiliary slot two; 405. spiral spring; 406. support rod; 407. rotating roller; 501. auxiliary plate; 502. rotating motor two; 503. fan blade; 504. heating block; 505. resistance wire. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 - Figure 7 The utility model provides a technical solution: an air preheater, comprising a ventilation duct 1, a control box 2 is fixedly connected to the right side of the ventilation duct 1, and a lifting assembly 3 is arranged inside the control box 2;

[0027] The lifting assembly 3 includes a rotating motor 301, which is fixedly installed inside the control box 2, a gear 302 is fixedly connected to the transmission end of the rotating motor 301, a gear 303 is rotatably installed below the gear 302, a screw rod 304 is fixedly connected inside the gear 303, a lifting slot 305 is provided inside the ventilation duct 1, a lifting shell 306 is movably installed inside the lifting slot 305, a lifting block 307 is fixedly connected to the outer side of the lifting shell 306, a threaded hole 308 is provided on the inner wall of the lifting block 307, and a filter plate 309 is movably installed inside the lifting block 307;

[0028] Gear 2 303 is meshed with gear 1 302 , the lifting block 307 is matched with the lifting slot 305 , the threaded hole 308 is threadedly connected with the screw rod 304 , and the filter plate 309 is distributed in parallel to the inside of the lifting block 307 .

[0029] In this embodiment, Figure 1 and Figure 6 As shown, the interior of the lifting block 307 is provided with a fixing component 4, and the fixing component 4 includes a limiting slide groove 401, which is opened in the interior of the lifting block 307, and the limiting slide groove 401 is distributed in parallel to the interior of the lifting block 307 in the upper and lower directions, and the inner wall of the limiting slide groove 401 is provided with a positioning groove 402, and the positioning groove 402 is symmetrically distributed to the inner wall of the limiting slide groove 401, and the outer side of the filter plate 309 is provided with an auxiliary groove 1 403, and the auxiliary groove 1 403 is distributed in parallel to the outer side of the filter plate 309 in the upper and lower directions, and the inner wall of the auxiliary groove 1 403 is provided with an auxiliary groove 2 404, and the interior of the auxiliary groove 2 404 is fixedly connected with a coil spring 405, and the top of the coil spring 405 is fixedly connected with a support rod 406, and the outer side of the support rod 406 is rotatably connected with a rotating roller 407.

[0030] In this embodiment, Figure 4 and Figure 7As shown, a ventilation assembly 5 is provided inside the ventilation duct 1, and the ventilation assembly 5 includes an auxiliary plate 501, and the auxiliary plate 501 is fixedly installed inside the ventilation duct 1, and a rotating motor 2 502 is fixedly installed on the back side of the auxiliary plate 501, and a fan blade 503 is fixedly installed on the transmission end of the rotating motor 2 502, and a heating block 504 is fixedly installed inside the ventilation duct 1 behind the fan blade 503, and the heating block 504 is distributed in parallel up and down to the inside of the ventilation duct 1, and a resistance wire 505 is fixedly connected to the opposite side of the heating block 504, and the resistance wire 505 is distributed in parallel front and back to the opposite side of the heating block 504.

[0031] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, an air inlet 6 is provided on the front of the ventilation duct 1, an air outlet 7 is provided on the back of the ventilation duct 1, a heat dissipation slot 8 is provided on the left side of the control box 2, a strip grille 9 is fixedly installed inside the heat dissipation slot 8, and the strip grilles 9 are distributed vertically and parallelly to the inside of the heat dissipation slot 8, a handle 10 is fixedly installed on the left side of the filter plate 309, a support column 11 is fixedly installed on the bottom of the ventilation duct 1, and an anti-slip pad 12 is fixedly installed on the bottom of the support column 11.

[0032] The use method and advantages of the utility model: When the air preheater is used, the working process is as follows:

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, during use, by starting the rotating motor 1 301, it drives the gear 1 302 at its transmission end to rotate, and then the gear 2 303 is meshed with the gear 1 302 to drive the gear 2 303 and the screw rod 304 to rotate. At the same time, through the adaptation of the lifting block 307 and the lifting slot 305 and the threaded connection of the threaded hole 308 and the screw rod 304, the lifting shell 306 can be lifted and left the inside of the control box 2. After that, the staff can clean or replace the filter plate 309. When replacing, the staff pushes the filter plate 309 to make the rotating roller 407 stuck in the inside of the limiting slide groove 401. Then, the height of the rotating roller 407 is limited by the limiting slide groove 401, so that the coil spring 405 contracts. Then, when the rotating roller 407 moves to the positioning groove 402, the coil spring 405 is not limited and will pop open, so that the rotating roller 407 is stuck inside the positioning groove 402. Finally, by starting the rotating motor 2 502, it drives the fan blades 503 at its transmission end to rotate, thereby accelerating the air to be discharged from the air inlet 6 to the air outlet 7. During the circulation of air inside the ventilation duct 1, the air will be preheated by the heating block 504 and the resistance wire 505, and then the hot air is discharged through the air outlet 7.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An air preheater, comprising a ventilation duct (1), characterized in that: The right side of the ventilation duct (1) is fixedly connected to a control box (2), and a lifting assembly (3) is arranged inside the control box (2); The lifting assembly (3) comprises a rotating motor 1 (301), the rotating motor 1 (301) being fixedly mounted inside the control box (2), a transmission end of the rotating motor 1 (301) being fixedly connected to a gear 1 (302), a gear 2 (303) being rotatably mounted below the gear 1 (302), a screw rod (304) being fixedly connected inside the gear 2 (303), a lifting groove (305) being provided inside the ventilation duct (1), a lifting shell (306) being movably mounted inside the lifting groove (305), a lifting block (307) being fixedly connected to the outer side of the lifting shell (306), a threaded hole (308) being provided on the inner wall of the lifting block (307), and a filter plate (309) being movably mounted inside the lifting block (307); The gear 2 (303) is meshedly connected with the gear 1 (302), the lifting block (307) is matched with the lifting slot (305), the threaded hole (308) is threadedly connected with the screw rod (304), and the filter plate (309) is distributed in parallel front and back to the inside of the lifting block (307).

2. An air preheater according to claim 1, characterized in that: A fixing component (4) is arranged inside the lifting block (307), and the fixing component (4) comprises a limiting slide groove (401). The limiting slide groove (401) is arranged inside the lifting block (307), and the limiting slide groove (401) is distributed vertically and parallelly inside the lifting block (307). The inner wall of the limiting slide groove (401) is provided with a positioning groove (402), and the positioning groove (402) is distributed symmetrically on the inner wall of the limiting slide groove (401). An auxiliary groove 1 (403) is arranged on the outer side of the filter plate (309).

3. An air preheater according to claim 2, characterized in that: The auxiliary groove one (403) is distributed in parallel up and down to the outside of the filter plate (309); the inner wall of the auxiliary groove one (403) is provided with an auxiliary groove two (404); a coil spring (405) is fixedly connected inside the auxiliary groove two (404); a support rod (406) is fixedly connected to the top of the coil spring (405); and a rotating roller (407) is rotatably connected to the outside of the support rod (406).

4. The air preheater according to claim 1, characterized in that: A ventilation assembly (5) is arranged inside the ventilation duct (1), and the ventilation assembly (5) comprises an auxiliary plate (501), the auxiliary plate (501) is fixedly mounted inside the ventilation duct (1), a second rotating motor (502) is fixedly mounted on the back of the auxiliary plate (501), and a fan blade (503) is fixedly mounted on the transmission end of the second rotating motor (502).

5. An air preheater according to claim 4, characterized in that: A heating block (504) is fixedly installed inside the ventilation duct (1) behind the fan blade (503); the heating block (504) is distributed vertically and parallelly inside the ventilation duct (1); a resistance wire (505) is fixedly connected to the opposite side of the heating block (504); the resistance wire (505) is distributed frontward and rearward in parallel to the opposite side of the heating block (504).

6. An air preheater according to claim 1, characterized in that: An air inlet (6) is provided on the front of the ventilation duct (1), an air outlet (7) is provided on the back of the ventilation duct (1), and a heat dissipation slot (8) is provided on the left side of the control box (2).

7. An air preheater according to claim 6, characterized in that: A strip grid (9) is fixedly installed inside the heat dissipation groove (8), and the strip grid (9) is distributed vertically and parallelly inside the heat dissipation groove (8).

8. An air preheater according to claim 2, characterized in that: A handle (10) is fixedly mounted on the left side of the filter plate (309), a support column (11) is fixedly mounted on the bottom of the ventilation duct (1), and an anti-slip pad (12) is fixedly mounted on the bottom of the support column (11).

Images