Cold end anti-corrosion device for air preheater of garbage incinerator

Abstract

The utility model discloses a cold end anti-corrosion device for an air preheater of a garbage incinerator, which belongs to the field of air preheaters, and adopts the technical scheme that the cold end anti-corrosion device comprises a body mechanism, the outer end of the body mechanism is movably connected with a connecting mechanism, the outer end of the connecting mechanism is provided with a protection mechanism, and the protection mechanism comprises a treatment box; the inner end of the treatment box is rotationally connected with a rotating wheel, and the outer end of the rotating wheel is fixedly connected with convex blocks which are uniformly distributed; through the arrangement of the protruding blocks and the filtering pieces, smoke is heated through the smoke heater among the multiple pipelines, in the conveying process, the multiple filtering pieces can filter the smoke conveyed by the smoke inlet pipe, the multiple protruding blocks rotate to collide with the filtering pieces during maintenance, the filtering pieces can conduct transmission to treat external impurities and dust, and therefore the filtering efficiency is improved. The device can prevent corrosion of the cold end, can meet daily maintenance, and improves the practicability of the anti-corrosion device.

Description

Technical Field

[0001] The utility model relates to the field of air preheaters, in particular to a cold end anti-corrosion device for an air preheater of a garbage incinerator. Background Art

[0002] Air preheaters are very common in waste incineration. They are mainly flue gas waste heat utilization devices. They absorb heat from high-temperature flue gas and turn the hot flue gas into cold flue gas for energy exchange, allowing the waste incineration work to proceed smoothly.

[0003] The existing air preheater cold end has certain disadvantages when in use. First, the structure of the air preheater cold end is relatively simple. When flowing through the cold end of the low-temperature section of the air preheater, sulfuric acid vapor will condense into corrosive droplets and adsorb on the metal surface of the air preheater, causing the cold end to be easily corroded and unable to be maintained. As a result, the corrosion resistance of the air preheater cold end is increased, resulting in, for this reason, we propose a waste incinerator air preheater cold end anti-corrosion device. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present utility model is to provide a cold-end anti-corrosion device for an air preheater of a waste incinerator. By arranging protrusions and filters, when the flue gas is conducted, the flue gas is heated by a flue gas heater between multiple pipes. During the transmission process, multiple filters can filter the flue gas transmitted by the flue gas inlet pipe, and during maintenance, multiple protrusions rotate and collide with the filter elements, allowing the filter elements to transmit and process external impurities and dust, so that the device can prevent cold-end corrosion while meeting daily maintenance, thereby improving the practicality of the anti-corrosion device.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A cold end anti-corrosion device for an air preheater of a waste incinerator comprises a main body mechanism, an outer end of the main body mechanism is movably connected to a connecting mechanism, and an outer end of the connecting mechanism is equipped with a protective mechanism;

[0007] The protection mechanism includes a processing box, the inner end of the processing box is rotatably connected to a rotating wheel, the outer end of the rotating wheel is fixedly connected to evenly distributed protrusions, and the outer sides of the protrusions are slidably connected to evenly distributed filter elements.

[0008] By installing the protrusion and the filter element, the practicality of the anti-corrosion device can be improved.

[0009] Furthermore, sliders are installed at both ends of the filter element, and the inner ends of the sliders are slidably connected to slide rods.

[0010] By installing the slider, the slider can form a connection structure at both ends of the filter element. Combined with the slide rod, the filter element can be handled and maintained more stably without offset.

[0011] Furthermore, an elastic ring is sleeved on the outer end of the slide rod, and a reinforcement seat is installed on the bottom end of the slide rod.

[0012] By installing an elastic ring, the filter element can enhance its ability to filter impurities.

[0013] Furthermore, a guide groove is provided at the outer end of the reinforcement seat, and the guide groove is located at the inner end of the processing box. A discharge pipe is installed at the bottom end of the processing box.

[0014] By installing the guide groove, the guide groove can guide the moving slider, so that the slider can slide and drive the filter element more stably.

[0015] Furthermore, the main body mechanism includes an air outlet pipe, the outer side of the air outlet pipe is movably connected to a smoke inlet pipe, the bottom of the smoke inlet pipe is movably connected to an air inlet pipe, the outer side of the air inlet pipe is movably connected to a smoke outlet pipe, and the outer side of the smoke inlet pipe is movably connected to a smoke heater.

[0016] By installing a flue gas heater, the structure can achieve heat exchange and corrosion protection.

[0017] Furthermore, the outer end of the flue gas inlet pipe is movably connected to the heater inlet pipe, the inner end of the heater inlet pipe is provided with an assembly port, and the outer end of the assembly port is sleeved with a sealing ring.

[0018] By installing a sealing ring, the heater inlet pipe can be prevented from leaking.

[0019] Furthermore, a heater regulating valve is installed at the outer end of the heater inlet pipe, and a heater outlet pipe is installed at the other end of the heater inlet pipe away from the flue gas inlet pipe.

[0020] By installing the heater outlet pipe, the heater outlet pipe can transmit the flue gas after the heat exchange is completed.

[0021] Furthermore, an electrostatic precipitator is installed at the bottom end of the heater outlet pipe.

[0022] By installing an electrostatic precipitator, the particles in the flue gas can be further removed.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. By providing the protrusions and filters, the flue gas is heated by the flue gas heaters between the multiple pipes during transmission. During the transmission process, the multiple filters can filter the flue gas transmitted by the flue gas inlet pipe. During maintenance, the multiple protrusions rotate and collide with the filter, allowing the filter to transmit and process external impurities and dust. This allows the device to prevent cold-end corrosion while meeting daily maintenance requirements, thereby improving the practicality of the anti-corrosion device.

[0025] 2. By setting the elastic ring, the elastic ring allows the slider to generate a force, so that the slider drives the filter element to extend the transmission, so that the filter element can filter impurities more effectively;

[0026] 3. By setting a sealing ring, the sealing ring can make the smoke conduction of the heater inlet pipe more sealed, preventing the heater inlet pipe from leaking and affecting the operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0028] Figure 2 Schematic diagram of the structure of the flue gas heater in this embodiment;

[0029] Figure 3 Schematic diagram of the structure of the sealing ring plane in this embodiment;

[0030] Figure 4 Schematic diagram of the cross section of the processing box in this embodiment;

[0031] Figure 5 In this embodiment Figure 4 Schematic diagram of the structure with the plane at point A enlarged.

[0032] In the figure, 1. main body mechanism; 101. air outlet pipe; 102. flue gas inlet pipe; 103. air inlet pipe; 104. flue gas outlet pipe; 105. flue gas heater; 2. connecting mechanism; 201. heater inlet pipe; 202. assembly port; 203. sealing ring; 204. heater regulating valve; 205. heater outlet pipe; 206. electrostatic precipitator; 3. protective mechanism; 301. processing box; 302. rotor; 303. bump; 304. filter element; 305. slider; 306. slide rod; 307. elastic ring; 308. reinforcement seat; 309. guide groove; 310. discharge pipe. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings.

[0034] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0035] Reference Figure 1-5 As shown, a cold end anti-corrosion device for an air preheater of a waste incinerator in a preferred embodiment of the present invention comprises a main body mechanism 1, an outer end of the main body mechanism 1 is movably connected to a connecting mechanism 2, and an outer end of the connecting mechanism 2 is installed with a protective mechanism 3;

[0036] The protection mechanism 3 includes a processing box 301 , the inner end of the processing box 301 is rotatably connected to a rotating wheel 302 , the outer end of the rotating wheel 302 is fixedly connected to evenly distributed protrusions 303 , and the outer side of the protrusions 303 is slidably connected to evenly distributed filter elements 304 .

[0037] Reference Figure 4-5 As shown, further, sliders 305 are installed at both ends of the filter element 304, and the inner ends of the sliders 305 are slidably connected to the sliding rods 306.

[0038] Reference Figure 5 As shown, further, an elastic ring 307 is sleeved on the outer end of the slide rod 306 , and a reinforcement seat 308 is installed on the bottom end of the slide rod 306 .

[0039] Reference Figure 4-5 As shown, further, a guide groove 309 is opened at the outer end of the reinforcement seat 308, and the guide groove 309 is located at the inner end of the processing box 301. A discharge pipe 310 is installed at the bottom end of the processing box 301.

[0040] When the flue gas is conducted by installation, the flue gas heater 105 is used between multiple pipes to heat the flue gas. During the transmission process, multiple filters 304 can filter the flue gas transmitted by the flue gas inlet pipe 102, and after a period of use, after the wheel 302 is started to rotate, multiple protrusions 303 rotate and collide with the filter element 304, so that the filter element 304 can transmit and process external impurities and dust, and the elastic ring 307 allows the slider 305 to generate a force, so that the slider 305 drives the filter element 304 to extend the transmission, so that the device can prevent cold end corrosion while meeting daily maintenance.

[0041] Reference Figure 1-2As shown, further, the main body mechanism 1 includes an air outlet pipe 101, the outer side of the air outlet pipe 101 is movably connected to the smoke inlet pipe 102, the lower side of the smoke inlet pipe 102 is movably connected to the air inlet pipe 103, the outer side of the air inlet pipe 103 is movably connected to the smoke outlet pipe 104, and the outer side of the smoke inlet pipe 102 is movably connected to the smoke heater 105.

[0042] By installing the flue gas heater 105, the flue gas heater 105 heats the transmitted cold air through the heat energy transmitted by the flue gas inlet pipe 102, raising the temperature to about 60°C. After secondary heating, the cold air enters the air outlet pipe 101 for combustion, thereby allowing the structure to achieve heat exchange and anti-corrosion work.

[0043] Reference Figure 1-3 As shown, further, the outer end of the flue gas inlet pipe 102 is movably connected to the heater inlet pipe 201, the inner end of the heater inlet pipe 201 is installed with an assembly port 202, and the outer end of the assembly port 202 is sleeved with a sealing ring 203.

[0044] Reference Figure 2 As shown, further, a heater regulating valve 204 is installed at the outer end of the heater inlet pipe 201 , and a heater outlet pipe 205 is installed at the other end of the heater inlet pipe 201 away from the flue gas inlet pipe 102 .

[0045] Reference Figure 2 As shown, further, an electrostatic precipitator 206 is installed at the bottom end of the heater outlet pipe 205.

[0046] By installing the sealing ring 203, the smoke conduction of the heater inlet pipe 201 can be more sealed to prevent leakage of the heater inlet pipe 201, and the electrostatic precipitator 206 can be removed, and the electrostatic precipitator 206 can further remove particles in the smoke.

[0047] Specific implementation process: When the device is in use, the flue gas heater 105 heats the transmitted cold air through the heat energy transmitted by the flue gas inlet pipe 102, raising the temperature to about 60°C. After secondary heating, the cold air enters the air outlet pipe 101 for combustion, thereby allowing the structure to achieve heat exchange and anti-corrosion work. During transmission, the sealing ring 203 can make the heater inlet pipe 201 more sealed for flue gas conduction, preventing leakage of the heater inlet pipe 201.

[0048] During the transmission process, the flue gas is heated by the flue gas heater 105 between multiple pipes. During the transmission process, multiple filters 304 can filter the flue gas transmitted by the flue gas inlet pipe 102. After a period of use, after the start-up wheel 302 rotates, multiple protrusions 303 rotate and collide with the filter element 304, allowing the filter element 304 to transmit and process external impurities and dust. The elastic ring 307 allows the slider 305 to generate a force, so that the slider 305 drives the filter element 304 to extend the transmission, allowing the device to prevent cold-end corrosion while meeting daily maintenance, thereby improving the practicality of the anti-corrosion device.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A cold end anti-corrosion device for an air preheater of a waste incinerator, characterized by: It comprises a main body mechanism (1), the outer end of the main body mechanism (1) is movably connected to a connecting mechanism (2), and the outer end of the connecting mechanism (2) is equipped with a protective mechanism (3); The protection mechanism (3) comprises a processing box (301), the inner end of the processing box (301) is rotatably connected to a rotating wheel (302), the outer end of the rotating wheel (302) is fixedly connected to evenly distributed protrusions (303), and the outer sides of the protrusions (303) are slidably connected to evenly distributed filter elements (304).

2. The cold end anti-corrosion device for an air preheater of a waste incinerator according to claim 1, characterized in that: Slide blocks (305) are installed at both ends of the filter element (304), and the inner end of the slide block (305) is slidably connected to a slide rod (306).

3. The cold end anti-corrosion device of the air preheater of a waste incinerator according to claim 2, characterized in that: The outer end of the slide rod (306) is sleeved with an elastic ring (307), and the bottom end of the slide rod (306) is installed with a reinforcement seat (308).

4. The cold end anti-corrosion device for an air preheater of a waste incinerator according to claim 3, characterized in that: A guide groove (309) is provided at the outer end of the reinforcement seat (308), and the guide groove (309) is located at the inner end of the processing box (301). A discharge pipe (310) is installed at the bottom end of the processing box (301).

5. The cold end anti-corrosion device of the air preheater of a waste incinerator according to claim 1, characterized in that: The main body mechanism (1) comprises an air outlet pipe (101), the outer side of the air outlet pipe (101) is movably connected to a smoke inlet pipe (102), the lower side of the smoke inlet pipe (102) is movably connected to an air inlet pipe (103), the outer side of the air inlet pipe (103) is movably connected to a smoke outlet pipe (104), and the outer side of the smoke inlet pipe (102) is movably connected to a smoke heater (105).

6. The cold end anti-corrosion device for an air preheater of a waste incinerator according to claim 5, characterized in that: The outer end of the flue gas inlet pipe (102) is movably connected to the heater inlet pipe (201), the inner end of the heater inlet pipe (201) is provided with an assembly port (202), and the outer end of the assembly port (202) is sleeved with a sealing ring (203).

7. The cold end anti-corrosion device for an air preheater of a waste incinerator according to claim 6, characterized in that: A heater regulating valve (204) is installed at the outer end of the heater inlet pipe (201), and a heater outlet pipe (205) is installed at the other end of the heater inlet pipe (201) away from the flue gas inlet pipe (102).

8. The cold end anti-corrosion device for an air preheater of a waste incinerator according to claim 7, characterized in that: An electrostatic precipitator (206) is installed at the bottom end of the heater outlet pipe (205).

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