Waste incineration boiler drum feed water heating device

Abstract

The utility model discloses a feed water heating device for a boiler barrel of a waste incineration boiler, and relates to the technical field of waste treatment. The waste incineration boiler drum feed water heating device comprises a water storage tank, a water purification device is arranged behind the water storage tank, a boiler feed water pump is arranged behind the water purification device, a feed water heater is arranged behind the boiler feed water pump, a coal economizer is arranged behind the feed water heater, and the coal economizer is arranged behind the boiler feed water pump. A steam pocket is arranged behind the coal economizer; according to the waste incineration boiler drum feed water heating device, a water body purification device is arranged, a stirring structure is used for efficiently mixing a water body and a disinfectant, so that the water body is sterilized and disinfected, and three filter screens are matched for adsorbing and filtering different types of impurities, so that the water body is subjected to multi-stage treatment in a filter structure; therefore, the treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage treatment, in particular to a drum feed water heating device for a garbage incineration boiler. Background Art

[0002] A garbage incineration boiler, also known as a garbage incinerator, is a device for incinerating and treating garbage. The garbage burns in the furnace and turns into waste gas which enters the secondary combustion chamber. It is completely burned under the forced combustion of the burner and then enters the spray dust collector. After dust removal, it is discharged into the atmosphere through the chimney. The garbage incinerator is a harmless treatment equipment commonly used in the harmless treatment of medical and domestic waste and animals. It is a common garbage incineration equipment.

[0003] The drum is a cylindrical pressure vessel in the boiler that is used for steam-water separation and steam purification, forming a water circulation loop and storing boiler water. It is also called a steam drum. Its main functions are to receive water from the economizer, separate steam from water, supply water to the circulation loop, and deliver saturated steam to the superheater.

[0004] The boiler feed water pump, feed water heater, economizer and steam drum mentioned in this scheme are all existing technologies and have been proposed in a waste incineration boiler bidirectional feed water heating system with patent publication number CN216143707U and an isothermal conversion furnace circulating boiler water filtration system with CN216143707UCN202221870591.4, so they will not be repeated here.

[0005] After searching, it is found that in a two-way feedwater heating system for a garbage incineration boiler with a patent publication number of CN216143707U, it is stated that "the utility model reduces the thermal stress of the steam drum, avoids corrosion of the heating surface of the economizer, and effectively controls the exhaust gas temperature, saves fuel, and improves the boiler efficiency";

[0006] However, the above scheme still has certain shortcomings in actual use. This scheme adopts a two-way feed water heating system to increase the feed water temperature of the two-way economizer and reduce the thermal stress of the steam drum;

[0007] However, the scheme does not have a filtering device for boiler feed water, resulting in excessive impurities in the boiler feed water. Excessive impurities will eventually clog the equipment, thus affecting the normal use of the waste incineration boiler. Utility Model Content

[0008] The utility model provides a waste incineration boiler drum water heating device to solve the problems in the background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste incineration boiler drum feed water heating device, comprising a water reservoir, a water purification device is arranged behind the water reservoir, a boiler feed water pump is arranged behind the water purification device, a feed water heater is arranged behind the boiler feed water pump, an economizer is arranged behind the feed water heater, and a steam drum is arranged behind the economizer;

[0010] The water purification device comprises a purification box, a front cover is arranged on the front side of the purification box, a partition plate is fixedly installed on the inner wall of the purification box, and the partition plate divides the internal space of the purification box into a stirring chamber and a filtering chamber;

[0011] A stirring structure is fixedly installed on the inner wall of the stirring chamber, and the stirring structure includes a stirring barrel and a top cover. The inside of the top cover is rotatably connected to a stirring shaft through a built-in power supply. The water outlet end of the water reservoir is connected to the inside of the stirring barrel, and the water outlet end of the stirring barrel extends through a partition plate to the inside of the filter chamber.

[0012] A filter screen is movably inserted into the inner wall of the filter cavity, and the top end of the filter screen extends to the outside of the purification box.

[0013] Furthermore, the water purification device, boiler feed water pump, feed water heater, economizer and steam drum are connected via connecting pipes.

[0014] Furthermore, an air pump is fixedly installed on the outside of the mixing barrel, an air inlet pipe is fixedly installed on the water outlet end of the air pump, the air inlet pipe is located inside the mixing barrel, and a nozzle is fixedly connected to the surface of the air inlet pipe.

[0015] Furthermore, a socket is fixedly mounted on the inner wall of the filter cavity, and the bottom end of the filter screen is movably plugged into the inner wall of the socket.

[0016] Furthermore, the three filters are a PP cotton filter plate, a ceramic filter plate and a granular activated carbon filter plate, and external handles are fixedly installed on the top of the three filters, and the external handles are located above the purification box.

[0017] Compared with the prior art, the utility model provides a waste incineration boiler drum feed water heating device, which has the following beneficial effects:

[0018] The waste incineration boiler drum feed water heating device is equipped with a water purification device and can use a stirring structure to efficiently mix water and disinfectant, thereby sterilizing and disinfecting the water. It then cooperates with three filters to adsorb and filter different types of debris, so that the water is treated in multiple stages in the filtration structure, thereby improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of a water purification device of the utility model;

[0021] Figure 3 It is a schematic diagram of the stirring structure of the present utility model.

[0022] In the figure: 1. water reservoir; 2. water purification device; 201. purification box; 202. front cover; 203. partition plate; 204. stirring chamber; 205. filter chamber; 206. stirring structure; 207. stirring barrel; 208. top cover; 209. stirring shaft; 210. vacuum pump; 211. air inlet pipe; 212. nozzle; 213. filter screen; 214. socket; 3. boiler feed pump; 4. feed heater; 5. economizer; 6. steam drum; 7. connecting pipe. DETAILED DESCRIPTION

[0023] 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 technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 The utility model discloses a waste incineration boiler drum feed water heating device, comprising a water reservoir 1, a water purification device 2 is arranged behind the water reservoir 1, a boiler feed water pump 3 is arranged behind the water purification device 2, a feed water heater 4 is arranged behind the boiler feed water pump 3, an economizer 5 is arranged behind the feed water heater 4, a steam drum 6 is arranged behind the economizer 5, and the water purification device 2, the boiler feed water pump 3, the feed water heater 4, the economizer 5 and the steam drum 6 are connected by a connecting pipe 7.

[0025] The water purification device 2 comprises a purification box 201, a front cover 202 is provided on the front side of the purification box 201, a partition plate 203 is fixedly installed on the inner wall of the purification box 201, and the partition plate 203 divides the internal space of the purification box 201 into a stirring chamber 204 and a filtering chamber 205;

[0026] A stirring structure 206 is fixedly installed on the inner wall of the stirring chamber 204, and the stirring structure 206 includes a stirring barrel 207 and a top cover 208. The inside of the top cover 208 is rotatably connected to a stirring shaft 209 through a built-in power supply. The water outlet end of the water reservoir 1 is connected to the inside of the stirring barrel 207, and the water outlet end of the stirring barrel 207 extends through the partition plate 203 to the inside of the filter chamber 205.

[0027] A filter screen 213 is movably connected to the inner wall of the filter cavity 205 , and the top of the filter screen 213 extends to the outside of the purification box 201 . A socket 214 is fixedly installed on the inner wall of the filter cavity 205 , and the bottom end of the filter screen 213 is movably connected to the inner wall of the socket 214 .

[0028] By setting up a water purification device 2, the stirring structure 206 can be used to efficiently mix the water and the disinfectant, so that the water is sterilized and disinfected, and then the three filter screens 213 are used to adsorb and filter different types of debris, so that the water is treated in multiple stages in the filtering structure, thereby improving the treatment effect.

[0029] Specifically, an air pump 210 is fixedly installed on the outside of the mixing barrel 207 , an air inlet pipe 211 is fixedly installed on the water outlet end of the air pump 210 , the air inlet pipe 211 is located inside the mixing barrel 207 , and a nozzle 212 is fixedly connected to the surface of the air inlet pipe 211 .

[0030] In this embodiment, the vacuum pump 210 passes the outside air into the air inlet pipe 211, and then the gas is injected into the disinfected water body through the nozzle 212. The air and the disinfected water body are fully mixed in the purification box 201, thereby increasing the oxygen content of the water body. By increasing the oxygen content, the mixing between the disinfectant and the water body is more complete.

[0031] Specifically, the three filter screens 213 are a PP cotton filter plate, a ceramic filter plate and a granular activated carbon filter plate, respectively, and external handles are fixedly installed on the tops of the three filter screens 213 , and the external handles are located above the purification box 201 .

[0032] In this embodiment, the water is initially filtered through a PP cotton filter plate to remove pollutants with a diameter greater than 5um, such as sediment, colloids, and rust;

[0033] The water is filtered through a ceramic filter plate, and further filtration is performed to remove impurities such as suspended matter and colloids in the water;

[0034] The water is filtered and adsorbed by the granular activated carbon filter plate, and the water's discoloration, odor, and antibacterial properties are effectively adsorbed and inhibited;

[0035] The water body is filtered and adsorbed by the three filter screens 213, so that the water body is purified.

[0036] When in use, the water purification device 2 is started, so that the water purification device 2 draws the water from the water reservoir 1 into the interior of the water purification device 2, and the water enters the interior of the mixing barrel 207 through the connecting pipe 7. Then, the staff injects disinfectant into the interior of the mixing barrel 207, and then starts the stirring shaft 209, so that the stirring shaft 209 starts to drive the water to mix with the disinfectant quickly, thereby completing the dilution of the disinfectant. The disinfectant can disinfect bacteria in the water, and the composition of the disinfectant belongs to the conventional means under the prior art, and the disinfectant will not corrode the equipment, thereby ensuring the normal use of the equipment;

[0037] While stirring, start the air pump 210 so that the air pump 210 passes outside air into the air inlet pipe 211, and then the gas is injected into the disinfection water body through the nozzle 212, and the air and the disinfection water body are fully mixed in the purification box 201, thereby increasing the oxygen content of the water body, and the mixing between the disinfectant and the water body is more complete by increasing the oxygen content;

[0038] Then, the mixed water body passes through three filter screens 213 in sequence, and the three filter screens 213 are PP cotton filter plate, ceramic filter plate and granular activated carbon filter plate respectively;

[0039] The water is initially filtered through a PP cotton filter plate to remove pollutants with a diameter greater than 5um, such as sediment, colloids, and rust;

[0040] The water is filtered through a ceramic filter plate, and further filtration is performed to remove impurities such as suspended matter and colloids in the water;

[0041] The water is filtered and adsorbed by the granular activated carbon filter plate, and the water's discoloration, odor, and antibacterial properties are effectively adsorbed and inhibited;

[0042] The water body is filtered and adsorbed by the three filters 213, so that the water body is purified at this time;

[0043] The water after multi-stage treatment enters the feed water heater 4 driven by the boiler feed water pump 3 for heating, and then passes through the economizer 5 and finally enters the interior of the steam drum 6, thus completing the feed water heating process.

[0044] In summary, the waste incineration boiler drum feed water heating device, by setting up a water purification device 2, can use the stirring structure 206 to efficiently mix the water and the disinfectant, thereby sterilizing and disinfecting the water, and then cooperate with three filter screens 213 to adsorb and filter different types of debris, so that the water is treated in multiple stages in the filtering structure, thereby improving the treatment effect.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste incineration boiler drum feed water heating device, comprising a water reservoir (1), characterized in that: A water purification device (2) is arranged behind the water reservoir (1), a boiler feed water pump (3) is arranged behind the water purification device (2), a feed water heater (4) is arranged behind the boiler feed water pump (3), an economizer (5) is arranged behind the feed water heater (4), and a steam drum (6) is arranged behind the economizer (5); The water purification device (2) comprises a purification box (201), a front cover (202) being arranged on the front side of the purification box (201), a partition plate (203) being fixedly mounted on the inner wall of the purification box (201), and the partition plate (203) dividing the internal space of the purification box (201) into a stirring chamber (204) and a filtering chamber (205); A stirring structure (206) is fixedly mounted on the inner wall of the stirring chamber (204), the stirring structure (206) comprising a stirring barrel (207) and a top cover (208), the interior of the top cover (208) being rotatably connected to a stirring shaft (209) via a built-in power source, the water outlet end of the water reservoir (1) being connected to the interior of the stirring barrel (207), and the water outlet end of the stirring barrel (207) extending through a partition plate (203) to the interior of the filter chamber (205); A filter screen (213) is movably inserted into the inner wall of the filter cavity (205), and the top end of the filter screen (213) extends to the outside of the purification box (201).

2. A waste incineration boiler drum feed water heating device according to claim 1, characterized in that: The water purification device (2), the boiler feed water pump (3), the feed water heater (4), the economizer (5) and the steam drum (6) are connected via a connecting pipe (7).

3. The waste incineration boiler drum feed water heating device according to claim 1, characterized in that: An air pump (210) is fixedly mounted on the outside of the mixing barrel (207); an air inlet pipe (211) is fixedly mounted on the water outlet end of the air pump (210); the air inlet pipe (211) is located inside the mixing barrel (207); and a nozzle (212) is fixedly connected to the surface of the air inlet pipe (211).

4. The waste incineration boiler drum feed water heating device according to claim 1, characterized in that: A plug-in socket (214) is fixedly mounted on the inner wall of the filter cavity (205), and the bottom end of the filter screen (213) is movably plugged into the inner wall of the plug-in socket (214).

5. The waste incineration boiler drum feed water heating device according to claim 1, characterized in that: The three filter screens (213) are respectively a PP cotton filter plate, a ceramic filter plate and a granular activated carbon filter plate, and external handles are fixedly mounted on the tops of the three filter screens (213), and the external handles are located above the purification box (201).

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