Waste heat recovery device for waste incineration

Abstract

The utility model belongs to the technical field of waste incineration treatment, and particularly provides a waste heat recovery device for waste incineration, which is connected with a waste incineration device and comprises a main shell, a split-flow air inlet device, a split-flow exhaust device and a spiral pipe. The split-flow air inlet device and the split-flow air exhauster are symmetrically mounted at the two ends of the main shell respectively; a supporting through pipe is arranged in the main shell, and the interior of the main shell communicates with the flow dividing air inlet device and the flow dividing air exhauster at the two ends through the supporting through pipe correspondingly. The split-flow air inlet device is communicated with the waste incineration device; the spiral pipe is wound on the supporting through pipe, a water inlet and a water outlet are formed in the outer side face of the main shell, and the inlet end and the outlet end of the spiral pipe are connected with the water inlet and the water outlet of the main shell respectively. The waste heat recovery device is connected with the waste incineration device, and smoke discharged during waste incineration can be directly input into the waste heat recovery device for heat exchange and then discharged, so that the purpose of energy utilization is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage incineration treatment, and specifically relates to a waste heat recovery device for garbage incineration. Background Art

[0002] Garbage is solid waste generated in human daily life and production. Due to its large discharge volume, complex and diverse composition, and its pollution, resource and social nature, it needs to be harmlessly disposed, resourced, reduced and socialized. If it is not properly handled, it will pollute the environment, affect environmental hygiene, waste resources, damage production and living safety, and destroy social harmony. Garbage disposal is to quickly remove the garbage, treat it harmlessly, and finally make reasonable use of it. The widely used garbage disposal methods today are sanitary landfill, high-temperature composting and incineration, with the aim of harmlessness, resource utilization and reduction.

[0003] In the existing related technologies, most of the garbage disposal is carried out by incineration. The garbage incineration process generally involves collecting the garbage in a centralized manner first, and then feeding it into an incinerator for centralized incineration. During the incineration of the garbage, a large amount of flue gas will be discharged. The discharged flue gas carries a large amount of heat energy. If the high-temperature flue gas generated during the incineration of the garbage is directly discharged, there will be a problem of energy waste.

[0004] Based on this, the utility model provides a waste heat recovery device for garbage incineration to solve the above problems. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a waste heat recovery device for garbage incineration to solve the problems in the prior art.

[0006] One embodiment of the utility model provides a waste heat recovery device for garbage incineration, which is connected to the garbage incineration device. The waste heat recovery device includes:

[0007] A main housing, a split-flow inlet, a split-flow exhaust, and a spiral tube;

[0008] The split air inlet and split air exhaust are symmetrically installed at two ends of the main shell;

[0009] A support pipe is provided inside the main shell, and the inside of the main shell is connected to the split air inlet and the split air exhaust at both ends through the support pipe;

[0010] The split air inlet is connected to the garbage incineration device;

[0011] The spiral tube is wound on the supporting through pipe, and a water inlet and a water outlet are arranged on the outer side of the main shell. The inlet end and the outlet end of the spiral tube are respectively connected to the water inlet and the water outlet of the main shell.

[0012] In one embodiment, the centers of both end faces of the main shell are provided with mounting holes, and both ends of the supporting through-tube are respectively mounted on the mounting holes of the end faces of the main shell, and supported and mounted inside the main shell through the mounting holes;

[0013] Wherein, both end surfaces of the main shell are provided with through holes, and a plurality of through holes are provided around the circumference of the mounting hole.

[0014] In one of the embodiments, the interior of the split flow inlet is a cavity;

[0015] The split air inlet is provided with a first air inlet pipe on one end face away from the main shell, and is connected with the garbage incineration device through the first air inlet pipe;

[0016] The split air inlet is provided with a second air inlet pipe having the same number as the through holes on one end surface close to the main shell, and the second air inlet pipe is respectively connected to the split air inlet and the main shell.

[0017] In one of the embodiments, the first air inlet pipe is provided with an external thread;

[0018] An internal threaded sleeve is provided at the connection between the first air inlet pipe and the garbage incineration device;

[0019] One end of the internal threaded sleeve is threadedly connected to the first air inlet pipe, and the other end of the internal threaded sleeve is threadedly connected to the waste incineration device, and the first air inlet pipe is connected to the waste incineration device through the internal threaded sleeve.

[0020] In one of the embodiments, the first air inlet pipe is provided with a filter plate;

[0021] The filter plate is located at the connection between the first air inlet pipe and the internal threaded sleeve.

[0022] In one of the embodiments, a plurality of uniform air outlet holes are arranged on the surface of the supporting through pipe.

[0023] In one of the embodiments, support feet are provided outside the main shell, and the main shell is supported and suspended by the support feet.

[0024] The waste heat recovery device for waste incineration provided in the above embodiments has the following beneficial effects:

[0025] 1. By connecting the waste heat recovery device with the garbage incineration device, the flue gas emitted during garbage incineration can be directly input into the waste heat recovery device of the present application for heat exchange and then discharged, thereby achieving the purpose of energy utilization.

[0026] 2. Since the supporting tube is wound with a spiral tube, part of the flue gas discharged by the garbage incineration device enters the inner side of the supporting tube from the split air inlet, and part of it enters the inside of the main shell and is located on the outer side of the supporting tube. When the spiral tube inputs normal temperature water from the water inlet, through this setting method, the input water can fully absorb the heat in the flue gas, thereby improving the effect of heat energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the overall structure of a waste heat recovery device for waste incineration provided in an embodiment of the utility model.

[0029] Figure Number:

[0030] 100, main shell; 110, water inlet; 120, drain outlet; 130, through hole; 200, split air inlet; 210, first air inlet pipe; 220, second air inlet pipe; 300, split air exhauster; 400, spiral tube; 500, supporting through pipe; 510, air outlet; 600, internal threaded sleeve; 700, filter plate; 800, supporting foot. DETAILED DESCRIPTION

[0031] 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 of 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.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0034] Reference Figure 1 One embodiment of the utility model provides a waste heat recovery device for garbage incineration, which is connected to the garbage incineration device. The waste heat recovery device includes:

[0035] The main housing 100, the split air inlet 200, the split air exhauster 300 and the spiral tube 400;

[0036] The split air inlet 200 and the split air exhauster 300 are symmetrically installed at two ends of the main housing 100;

[0037] A support pipe 500 is provided inside the main housing 100, and the inside of the main housing 100 is connected to the split air inlet 200 and the split air exhauster 300 at both ends through the support pipe 500;

[0038] The split air inlet 200 is connected to the garbage incineration device;

[0039] The spiral tube 400 is wound around the supporting tube 500 , and the outer side of the main shell 100 is provided with a water inlet 110 and a drain outlet 120 . The inlet end and the outlet end of the spiral tube 400 are respectively connected to the water inlet 110 and the drain outlet 120 of the main shell 100 .

[0040] In this embodiment, specifically, the waste heat recovery device is composed of a main shell 100, a split air inlet 200, a split air exhauster 300, a spiral tube 400 and a support pipe 500; the main shell 100 is a hollow cylinder, the support pipe 500 is arranged inside the main shell 100, and the two ends of the support pipe 500 extend out, the split air inlet 200 and the split air exhauster 300 are respectively connected to the extension parts at both ends of the support pipe 500, the exhaust part of the waste incineration device is connected to the split air inlet 200 through a pipeline, and the waste heat recovery device is discharged to the inside of the main shell 100 through the split air inlet 200. High-temperature flue gas generated during garbage incineration is input; the spiral tube 400 is wound around the supporting tube 500, and the spiral tube 400 is supported by the supporting tube 500. The outer side of the main shell 100 is provided with a water inlet 110 and a drain outlet 120. The water inlet 110 is close to the end where the diverter air inlet 200 is located, and the drain outlet 120 is close to the end where the diverter exhauster 300 is located. The two ends of the spiral tube 400 are respectively connected to the water inlet 110 and the drain outlet 120. Normal temperature water is input into the spiral tube 400 through the water inlet 110, and water after absorbing heat is output through the drain outlet 120.

[0041] One principle of this embodiment is: the high-temperature flue gas generated by the garbage incineration device when burning garbage is continuously transported to the diverter air inlet 200 of the waste heat recovery device through the pipeline, and the transported high-temperature flue gas enters the interior of the main shell 100. At the same time, normal-temperature water is input into the water inlet 110, and the input normal-temperature water enters the spiral tube 400; since the spiral tube 400 is wound and arranged inside the main shell 100, the input normal-temperature water flows in the spiral tube 400 inside the main shell 100, and spirally flows from the end where the water inlet 110 is located to the end where the drain port 120 is located. During the flow, the water absorbs the heat of the high-temperature flue gas inside the main shell 100, so that the temperature of the water rises and the temperature of the flue gas drops. The heated water is discharged from the drain port 120, and the cooled flue gas is discharged from the diverter exhauster 300, thereby achieving the purpose of waste heat recovery and thermal energy utilization. Since the spiral tube 400 is wound around the supporting through pipe 500, the input water can fully absorb the heat in the flue gas through this arrangement, thereby improving the effect of heat energy utilization.

[0042] In one embodiment, the center of both end faces of the main housing 100 is provided with mounting holes, and both ends of the supporting through pipe 500 are respectively mounted on the mounting holes of the end faces of the main housing 100, and supported and mounted inside the main housing 100 through the mounting holes;

[0043] Wherein, both end surfaces of the main housing 100 are provided with through holes 130 , and a plurality of through holes 130 are provided around the circumference of the mounting hole.

[0044] In this embodiment, both left and right end surfaces of the main housing 100 are provided with mounting holes, the support pipe 500 is arranged inside the main housing 100, and both ends of the support pipe 500 are arranged on the mounting holes at both ends of the main housing 100, the support pipe 500 is supported by the mounting holes at both ends of the main housing 100, and both ends of the support pipe 500 extend out, and the split inlet 200 and the split exhaust 300 are respectively connected to the extension parts at both ends of the support pipe 500; at the same time, both end surfaces of the main housing 100 are also provided with a plurality of The circumferentially arranged through holes 130, when the diverter air inlet 200 / diverter exhauster 300 is connected to the supporting through pipe 500, are also connected to the interior of the main shell 100 through the through holes 130, so that when high-temperature flue gas is input, the high-temperature flue gas can enter the interior of the main shell 100 and the interior of the supporting through pipe 500 at the same time, thereby improving the absorption efficiency of the subsequent normal temperature water in the spiral tube 400 when absorbing the high-temperature flue gas; the diverter exhauster 300 is connected to the main shell 100 through the through holes 130 in order to discharge the flue gas after the temperature inside the main shell 100 is reduced.

[0045] In one embodiment, the interior of the split air inlet 200 is a cavity;

[0046] The split air inlet 200 is provided with a first air inlet pipe 210 at one end surface away from the main housing 100, and is connected to the garbage incineration device through the first air inlet pipe 210;

[0047] The split air inlet 200 is provided with a second air inlet pipe 220 having the same number as the through holes 130 on one end surface close to the main shell 100 . The second air inlet pipe 220 is connected to the split air inlet 200 and the main shell 100 , respectively.

[0048] In this embodiment, the diverter air inlet 200 is a hollow disc, one end face of which is provided with a first air inlet pipe 210, which is connected to the waste incineration device to receive the high-temperature flue gas output by the waste incineration device, and the other end face is provided with a second air inlet pipe 220 having the same number as the through holes 130, and the diverter air inlet 200 is connected to the main shell 100 through the second air inlet pipe 220; the high-temperature flue gas output by the waste incineration device enters the hollow interior of the diverter air inlet 200 from the first air inlet pipe 210, and the high-temperature flue gas entering the diverter air inlet 200 flows into the interior of the supporting through pipe 500, and flows to the interior of the main shell 100 through the second air inlet pipe 220, thereby achieving a diversion effect.

[0049] In one embodiment, the first air inlet pipe 210 is provided with an external thread;

[0050] An internal threaded sleeve 600 is provided at the connection between the first air inlet pipe 210 and the garbage incineration device;

[0051] One end of the internal threaded sleeve 600 is threadedly connected to the first air inlet pipe 210 , and the other end of the internal threaded sleeve 600 is threadedly connected to the waste incineration device. The first air inlet pipe 210 is connected to the waste incineration device through the internal threaded sleeve 600 .

[0052] In this embodiment, an internal threaded sleeve 600 is provided at the connection between the first air inlet pipe 210 and the waste incineration device, and the first air inlet pipe 210 is connected to the waste incineration device through the internal threaded sleeve 600; the threaded connection method is adopted to facilitate disassembly and installation.

[0053] In one embodiment, the first air inlet pipe 210 is provided with a filter plate 700;

[0054] The filter plate 700 is located at the connection between the first air inlet pipe 210 and the internal threaded sleeve 600 .

[0055] In this embodiment, since the flue gas emitted during garbage incineration contains a lot of debris / fly ash, if the flue gas is directly transported into the waste heat recovery device, for a long time, the debris / fly ash in the flue gas will accumulate in the waste heat recovery device, which may cause the efficiency of the waste heat recovery device to be reduced or damaged. At the same time, the flue gas is discharged after passing through the waste heat recovery device, and the debris / fly ash it contains will be discharged to the outside world, which may cause environmental pollution to the outside world. Based on this, a filter plate 700 is provided at the connection between the first air inlet pipe 210 and the internal threaded sleeve 600, which is used to filter the flue gas output by the garbage incineration device. The flue gas filtered by the filter plate 700 enters the split air inlet 200 to prevent the above problems from occurring.

[0056] In one embodiment, a plurality of uniform air outlet holes 510 are disposed on the surface of the supporting through pipe 500 .

[0057] In this embodiment, a plurality of uniform air outlet holes 510 are provided on the surface of the supporting tube 500 so that the high-temperature flue gas inputted into / outside the supporting tube 500 can flow, and the spiral tube 400 can fully absorb the heat in the flue gas, thereby increasing the efficiency of heat utilization.

[0058] In one of the embodiments, support feet 800 are disposed outside the main housing 100 , and the main housing 100 is supported in suspension by the support feet 800 .

[0059] In this embodiment, the support legs 800 are made of steel to increase the stability of the support for the main housing 100 during use. The support legs 800 can be fixed to the outer side of the main housing 100 by welding.

[0060] As needed, the above-mentioned installation, setting, provision or connection methods include but are not limited to installation, setting or connection by screws, riveting, welding or socketing, fixing, etc., and the installation, setting or connection method is selected according to the needs of the working scenario.

[0061] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A waste heat recovery device for garbage incineration, connected to a garbage incineration device, characterized in that: The waste heat recovery device comprises: A main housing (100), a split air inlet (200), a split air exhauster (300) and a spiral tube (400); The split air inlet (200) and the split air exhauster (300) are symmetrically mounted at two ends of the main housing (100); A support pipe (500) is provided inside the main housing (100), and the inside of the main housing (100) is respectively connected to the split air inlet (200) and the split air exhauster (300) at both ends through the support pipe (500); The split air inlet (200) is connected to the garbage incineration device; The spiral tube (400) is wound around the supporting tube (500), and a water inlet (110) and a water outlet (120) are provided on the outer side of the main shell (100). The inlet end and the outlet end of the spiral tube (400) are respectively connected to the water inlet (110) and the water outlet (120) of the main shell (100).

2. The waste heat recovery device for garbage incineration as claimed in claim 1, characterized in that: The centers of both end surfaces of the main shell (100) are provided with mounting holes, and the two ends of the supporting through-tube (500) are respectively mounted on the mounting holes on the end surfaces of the main shell (100), and supported and mounted inside the main shell (100) through the mounting holes; Wherein, both end surfaces of the main housing (100) are provided with through holes (130), and a plurality of through holes (130) are provided around the circumference of the mounting hole.

3. The waste heat recovery device for garbage incineration as claimed in claim 2, characterized in that: The interior of the split air inlet (200) is a cavity; A first air intake pipe (210) is provided on one end surface of the split air intake device (200) away from the main housing (100), and is connected to the garbage incineration device through the first air intake pipe (210); The split air inlet (200) is provided with a second air inlet pipe (220) having the same number as the through holes (130) on one end surface close to the main shell (100), and the second air inlet pipe (220) is respectively connected to the split air inlet (200) and the main shell (100).

4. The waste heat recovery device for garbage incineration as claimed in claim 3, characterized in that: The first air inlet pipe (210) is provided with an external thread; An internal threaded sleeve (600) is provided at the connection between the first air inlet pipe (210) and the garbage incineration device; One end of the internally threaded sleeve (600) is threadedly connected to the first air inlet pipe (210), and the other end of the internally threaded sleeve (600) is threadedly connected to the waste incineration device, and the first air inlet pipe (210) is connected to the waste incineration device through the internally threaded sleeve (600).

5. The waste heat recovery device for garbage incineration as claimed in claim 4, characterized in that: The first air inlet pipe (210) is provided with a filter plate (700); The filter plate (700) is located at the connection between the first air inlet pipe (210) and the internal threaded sleeve (600).

6. The waste heat recovery device for garbage incineration as claimed in claim 1, characterized in that: The surface of the supporting through pipe (500) is provided with a plurality of uniform air outlet holes (510).

7. The waste heat recovery device for garbage incineration as claimed in claim 1, characterized in that: Support legs (800) are arranged outside the main housing (100), and the main housing (100) is supported and suspended in the air by the support legs (800).

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