Preheater capable of greatly reducing crust thickness

Abstract

The utility model belongs to the technical field of preheaters, and particularly relates to a preheater capable of greatly reducing crust thickness, which comprises a preheater main body and an air inlet pipe, the air inlet pipe is mounted on one side of the preheater main body, and the upper side of the preheater main body is connected with a final-stage cylinder articulated chute through a valve I; and a driving motor is mounted on one side, close to the final-stage cylinder articulated chute, of the preheater main body. According to the preheater capable of greatly reducing the crust thickness, when a worker needs to clean a final-stage barrel articulated chute, a first valve is started, the final-stage barrel articulated chute is closed through the first valve, meanwhile, a second valve is started, a first connecting pipe is opened through the second valve, a driving motor and an exhaust fan are started at the moment, and crust and scale attached to the inner wall of the final-stage barrel articulated chute can be scraped off through a scraping plate; and at the moment, the exhaust fan can guide airflow, so that crusts and scales stay in the storage box, the final-stage barrel articulated chute is not prone to crusting and scaling, and the preheater is not prone to reducing the heat transfer efficiency and the fluid flow speed.

Description

TECHNICAL FIELD

[0001] The utility model relates to preheater technical field, concretely is a preheater that can greatly reduce the thickness of skin. BACKGROUND

[0002] The main role of the preheater is to preheat the fluid entering the system by recycling and utilizing waste heat or external heat source, thereby improving energy efficiency, reducing energy consumption, and optimizing the working efficiency of the overall system. The preheater recycles waste gas, waste heat, or utilizes external heat source to heat the fluid, effectively utilizes energy, and reduces additional energy consumption. By recycling the discharged heat or extracting heat from the surrounding environment, the thermal efficiency of the system can be greatly improved. By preheating the fluid entering the equipment, the preheater can reduce the demand for external heat source.

[0003] The last-stage cylinder pipe of the preheater is usually located at the farthest end of the heat exchanger or is the last-stage heat exchange part of the heat exchange system. It is the heat exchange pipe section that finally contacts with the fluid. Since the last-stage cylinder pipe is responsible for completing the final heating of the fluid, the temperature gradient and pressure borne by this part of the pipe are large, and therefore the last-stage cylinder pipe is prone to skinning and fouling. The skinning and fouling form a heat insulation layer on the pipe wall, reducing the efficiency of heat transfer, and increasing the flow resistance in the pipe, thereby reducing the fluid flow rate. Therefore, the preheater capable of greatly reducing the thickness of skin is proposed. SUMMARY

[0004] The utility model discloses a preheater capable of greatly reducing the thickness of skin to solve the problem of large temperature gradient and pressure borne by the last-stage cylinder pipe, which is prone to skinning and fouling, reduces the efficiency of heat transfer, and reduces the fluid flow rate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a preheater capable of greatly reducing the thickness of skin, comprising a preheater body and an air inlet pipe, wherein the air inlet pipe is installed on one side of the preheater body, and the upper side of the preheater body is connected with the last-stage cylinder pipe through a valve one, a drive motor is installed on the side of the preheater body close to the last-stage cylinder pipe, the output end of the drive motor is fixed with a synchronous wheel one, and the outer side of the synchronous wheel one is connected with one end of a synchronous belt.

[0006] The other end of the synchronous belt is connected with a synchronous wheel two, the upper side of the synchronous wheel two is fixed with a toothed disc, and the toothed disc is connected with a toothed ring, the synchronous wheel one and the synchronous wheel two are movably connected with the preheater body through bearings, and the toothed disc and the toothed ring are movably connected with the last-stage cylinder pipe through bearings.

[0007] Preferably, the inner side of the tooth ring is fixed with the connecting block, and the upper side of the connecting block is provided with a connecting plate, one side of the connecting plate is fixed with one end of the scraper.

[0008] Preferably, the lower side of the connecting plate is fixed with the butt joint block, and the side of the connecting block close to the butt joint block is provided with a butt joint groove, and the butt joint block is butted with the butt joint groove.

[0009] Preferably, the side of the connecting block close to the butt joint groove is provided with a plug groove, and the inside of the connecting plate and the inside of the butt joint block are penetrated by a screw rod, and the lower end of the screw rod is butted with the plug groove.

[0010] Preferably, the side of the last-stage cylinder pipe is fixed with one end of the connecting pipe one through the valve two, and the other end of the connecting pipe one is connected with the storage box.

[0011] Preferably, the inside of the storage box is connected with the filter plate, and the upper side of the storage box is connected with the sealing cover plate through the bolt.

[0012] Preferably, the side of the storage box close to the filter plate is connected with one end of the connecting pipe two, and the other end of the connecting pipe two is fixed with the air inlet of the exhaust fan, and the exhaust fan is connected with the preheater main body.

[0013] Compared with the prior art, the preheater can greatly reduce the thickness of the skin, when the worker needs to clean the last-stage cylinder pipe, the valve one is started to close the last-stage cylinder pipe, and the valve two is started to open the connecting pipe one, at this time, the driving motor and the exhaust fan are started, the scraper can scrape the skin and scale attached to the inner wall of the last-stage cylinder pipe, and at this time, the exhaust fan can guide the airflow, so that the skin and scale are retained in the inside of the storage box, so that the last-stage cylinder pipe is not easy to form the skin and scale, and the preheater is not easy to reduce the efficiency of heat transfer and fluid flow rate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a preheater main body, an air inlet pipe and a connecting structure thereof of the utility model;

[0015] Figure 2 It is a last-stage cylinder pipe, a driving motor and a connecting structure thereof of the utility model;

[0016] Figure 3 It is a butt joint block, a butt joint groove and a connecting structure thereof of the utility model;

[0017] Figure 4 It is a Figure 2 It is a partial enlarged structure schematic view of A in the utility model.

[0018] In the figure: 1, preheater main body; 101, air inlet pipe; 102, valve one; 103, last stage cylinder pipe; 2, driving motor; 201, synchronous wheel one; 202, synchronous belt; 203, synchronous wheel two; 204, toothed disc; 205, toothed ring; 206, connecting block; 207, connecting plate; 208, scraper; 209, butt joint block; 210, butt joint groove; 211, insertion slot; 212, screw rod; 213, valve two; 214, connecting pipe one; 215, storage box; 216, filter plate; 217, sealing cover plate; 218, connecting pipe two; 219, air extractor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-4The utility model provides a technical scheme: a preheater that can greatly reduce the skin thickness, including preheater main part 1 and intake pipe 101, preheater main part 1 one side is installed with intake pipe 101, and the upside of preheater main part 1 is connected with last stage cylinder chute pipe 103 through valve one 102, and the side of preheater main part 1 close to last stage cylinder chute pipe 103 is installed with drive motor 2, and the output of drive motor 2 is fixed with synchronous pulley one 201, and the outside of synchronous pulley one 201 is opposite with one end of synchronous belt 202, and the other end of synchronous belt 202 is opposite with synchronous pulley two 203, and the upside of synchronous pulley two 203 is fixed with toothed disc 204, and toothed disc 204 is opposite with toothed ring 205, and synchronous pulley one 201 and synchronous pulley two 203 are movably connected with preheater main part 1 through bearing respectively, and toothed disc 204 and toothed ring 205 are movably connected with last stage cylinder chute pipe 103 through bearing respectively, and the inside of toothed ring 205 is fixed with connecting block 206, and the upside of connecting block 206 is provided with connecting plate 207, and one side of connecting plate 207 is fixed with one end of scraper 208, and the downside of connecting plate 207 is fixed with butt joint block 209, and the side of connecting block 206 close to butt joint block 209 is provided with butt joint groove 210, and butt joint block 209 is opposite with butt joint groove 210, and the side of connecting block 206 close to butt joint groove 210 is provided with insertion slot 211, and the inside of connecting plate 207 and the inside of butt joint block 209 are penetrated with screw rod 212 simultaneously, and the lower end of screw rod 212 is opposite with insertion slot 211, and one side of last stage cylinder chute pipe 103 is fixed with one end of connecting pipe one 214 through valve two 213, and the other end of connecting pipe one 214 is connected with containing box 215, and the inside of containing box 215 is connected with filter plate 216, and the upside of containing box 215 is connected with sealing cover plate 217 through bolt, and the side of containing box 215 close to filter plate 216 is connected with one end of connecting pipe two 218, and the other end of connecting pipe two 218 is fixed with the air inlet of exhaust fan 219, and exhaust fan 219 is connected with preheater main part 1, and synchronous pulley one 201 and synchronous pulley two 203 are engaged with synchronous belt 202, and toothed disc 204 is engaged with toothed ring 205, and butt joint block 209 is matched with butt joint groove 210, and the cross section shape of butt joint groove 210 is rectangular, and insertion slot 211 is connected with screw rod 212, and sealing cover plate 217 and containing box 215 form sealing state.

[0021] In specific implementation, according to Figures 1-4When the preheater body 1 is put into use, first insert the scraper 208 into the inside of the last stage cylinder spout pipe 103, make the butt joint block 209 butt joint with the butt joint groove 210, match the butt joint block 209 with the butt joint groove 210, and the cross section shape of the butt joint groove 210 is rectangular, so that the butt joint block 209 is not easy to shift in the inside of the butt joint groove 210, make one side of the scraper 208 and the last stage cylinder spout pipe 103 locate and fit together, at this time use the screw rod 212 to penetrate the connecting plate 207 and the butt joint block 209 to rotate and butt joint with the insertion slot 211, make the screw rod 212 and the insertion slot 211 limit together through the threaded connection between the insertion slot 211 and the screw rod 212, so as to limit the scraper 208 on one side of the inner wall of the last stage cylinder spout pipe 103, at this time use the bolt to limit the sealing cover plate 217 and the storage box 215 together, make the sealing cover plate 217 and the storage box 215 form a sealed state, then install the preheater body 1, make the preheater body 1 can preheat the fluid entering the system by recycling and utilizing waste heat or external heat source, so as to improve energy efficiency and reduce energy consumption, and when the staff needs to clean the last stage cylinder spout pipe 103, start the valve one 102, make the valve one 102 close the last stage cylinder spout pipe 103, at the same time start the valve two 213, make the valve two 213 open the connecting pipe one 214, at this time start the driving motor 2 and the exhaust fan 219, make the output end of the driving motor 2 drive the synchronous wheel one 201 to rotate, make the synchronous wheel two 203 rotate through the meshing butt joint between the synchronous wheel one 201 and the synchronous wheel two 203 and the synchronous belt 202, make the synchronous wheel two 203 drive the toothed disc 204 to rotate, make the toothed disc 204 drive the toothed ring 205 to rotate through the meshing butt joint between the toothed disc 204 and the toothed ring 205, at this time the toothed ring 205 drives the scraper 208 to rotate through the connecting block 206, make the scraper 208 scrape off the skin and scale attached to the inner wall of the last stage cylinder spout pipe 103, and at this time the exhaust fan 219 can guide the airflow, make the skin and scale scraped off in the last stage cylinder spout pipe 103 follow the airflow and be sucked into the inside of the storage box 215 through the connecting pipe one 214, and the skin and scale can be filtered down through the fixed filter plate 216, make the skin and scale stay in the inside of the storage box 215, when the cleaning of the last stage cylinder spout pipe 103 is finished, the staff can open the sealing cover plate 217 and clean out the skin and scale in the inside of the storage box 215, make the last stage cylinder spout pipe 103 not easy to form skin and scale, so that the preheater is not easy to reduce the efficiency of heat transfer and the fluid flow rate.

[0022] In summary, when the staff needs to clean the last-stage cylinder chute 103, the valve one 102 is started to close the last-stage cylinder chute 103, and the valve two 213 is started to open the connecting pipe one 214, at this time, the driving motor 2 and the air blower 219 are started, the scraper 208 can scrape the incrustation and scale adhered to the inner wall of the last-stage cylinder chute 103, and at this time, the air blower 219 can guide the airflow, so that the incrustation and scale stay in the inside of the storage box 215, so that the last-stage cylinder chute 103 is not easy to generate incrustation and scale, so that the preheater is not easy to reduce the efficiency of heat transfer and the fluid flow rate, and the contents not described in detail in the description belong to the prior art known to the person skilled in the art.

[0023] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A preheater capable of greatly reducing the thickness of the skin, comprising a preheater body (1) and an air inlet pipe (101), characterized in that: One side of the preheater body (1) is provided with an air inlet pipe (101), and the upper side of the preheater body (1) is connected with a final cylinder chute pipe (103) through a valve (102), and the side of the preheater body (1) close to the final cylinder chute pipe (103) is provided with a driving motor (2), and the output end of the driving motor (2) is fixed with a synchronous pulley (201), and the outer side of the synchronous pulley (201) is connected with one end of a synchronous belt (202). The other end of the synchronous belt (202) is connected with a synchronous pulley (203), the upper side of the synchronous pulley (203) is fixed with a toothed disc (204), and the toothed disc (204) is connected with a toothed ring (205), the synchronous pulley (201) and the synchronous pulley (203) are movably connected with the preheater body (1) through bearings, and the toothed disc (204) and the toothed ring (205) are movably connected with the final cylinder chute pipe (103) through bearings.

2. A preheater capable of substantially reducing the thickness of the skin according to claim 1, characterized in that: The inner side of the toothed ring (205) is fixed with a connecting block (206), and the upper side of the connecting block (206) is provided with a connecting plate (207), and one side of the connecting plate (207) is fixed with one end of a scraper (208).

3. A preheater capable of substantially reducing the thickness of the skin according to claim 2, characterized in that: The lower side of the connecting plate (207) is fixed with a butt joint block (209), and the side of the connecting block (206) close to the butt joint block (209) is provided with a butt joint groove (210), and the butt joint block (209) is connected with the butt joint groove (210).

4. A preheater capable of substantially reducing the thickness of the skin according to claim 3, characterized in that: The side of the connecting block (206) close to the butt joint groove (210) is provided with a slot (211), the inside of the connecting plate (207) and the inside of the butt joint block (209) are simultaneously penetrated by a screw rod (212), and the lower end of the screw rod (212) is connected with the slot (211).

5. A preheater capable of substantially reducing the thickness of the skin according to claim 4, characterized in that: One side of the final cylinder chute pipe (103) is fixed with one end of a connecting pipe (214) through a valve (213), and the other end of the connecting pipe (214) is connected with a storage box (215).

6. A preheater capable of substantially reducing the thickness of the skin according to claim 5, characterized in that: The inside of the storage box (215) is connected with a filter plate (216), and the upper side of the storage box (215) is connected with a sealing cover plate (217) through bolts.

7. A preheater capable of substantially reducing the thickness of the skin according to claim 6, characterized in that: The side of the storage box (215) close to the filter plate (216) is connected with one end of a connecting pipe (218), and the other end of the connecting pipe (218) is fixed with the air inlet of an exhaust fan (219), and the exhaust fan (219) is connected with the preheater body (1).

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