CN115183261A

CN115183261A - Tail heat absorption device for boiler

Info

Publication number: CN115183261A
Application number: CN202211019431.3A
Authority: CN
Inventors: 赵敏敏; 孙瑜; 李立升
Original assignee: KASTO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Current assignee: KASTO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-10-14

Abstract

The invention relates to a tail heat absorption device, in particular to a tail heat absorption device for a boiler. The tail heat absorption device for the boiler can filter and purify hot gas and avoid pollution. A tail heat absorption device for a boiler comprises a cooling pipe, a connecting pipe, a purifier, a connecting strip, a filter screen and the like; the cooling tube right side is connected with the connecting pipe that can dismantle, and the connecting pipe upside left part is connected with the clarifier, and the connecting pipe is connected with the connecting strip with the junction of cooling tube, and the left part is connected with the filter screen in the connecting pipe. This device is installed at the boiler afterbody, and boiler steam gets into the cooling tube, and the cold water that flows through the circulation tube inner loop cools down, and filter screen and clarifier can filter the dust impurity in the steam and purify, and the scraper blade rebound can be scraped the dust impurity of adhesion on the filter screen down, avoids dust impurity to pile up too much influence and ventilates, and because the connecting pipe is for dismantling the setting, can make things convenient for the staff to overhaul more.

Description

Tail heat absorption device for boiler

Technical Field

The invention relates to a tail heat absorption device, in particular to a tail heat absorption device for a boiler.

Background

The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people's life, and can also be converted into mechanical energy or electric energy. A boiler for supplying hot water is called a hot water boiler, and a boiler for generating steam is called a steam boiler. The heat in the boiler can be discharged through the tail part of the boiler, so that the aim of quickly cooling the interior of the boiler is fulfilled.

Patent grant publication No. CN 215411819U's patent discloses a afterbody heat sink for boiler, and this afterbody heat sink includes boiler and blast pipe, the blast pipe is located lower extreme one side of boiler, the top of blast pipe is provided with the exhaust fan, one side of exhaust fan is leaned on the lower extreme to be provided with the gas vent, lower extreme one side of boiler is provided with the gas outlet, the outer end of gas outlet is located the inside of blast pipe, the junction of blast pipe and boiler is provided with the anticreep cover, and surface one side of boiler is leaned on lower extreme equidistance to be provided with a plurality of connecting rod, the outer end of connecting rod all is provided with the anticreep pole by upper and lower both sides, just the connecting rod is provided with the bearing axle with the junction of anticreep pole, inside one side of exhaust fan is provided with the rotation motor. The tail heat absorption device for the boiler can prevent the exhaust pipe from being suddenly separated from the air outlet, ensure the stability of heat absorption and temperature reduction of the exhaust fan and clean impurity and dust adhered to the inner surface of the exhaust pipe. However, the tail heat absorption device has no function of filtering and purifying hot gas, and the hot gas which is not filtered and purified is discharged into the environment and is easy to pollute.

Therefore, the tail heat absorption device for the boiler can filter and purify hot gas and avoid pollution.

Disclosure of Invention

In order to overcome the defects that the existing tail heat absorption device does not have the function of filtering and purifying hot gas and the hot gas emission easily causes pollution to the environment, the technical problem to be solved is as follows: the tail heat absorption device for the boiler can filter and purify hot gas and avoid pollution.

The technical implementation scheme of the invention is as follows: the utility model provides a afterbody heat sink for boiler, including the cooling tube, the connecting pipe, the clarifier, the connecting strip, the filter screen, heat absorption mechanism and dust removal mechanism, the cooling tube right side is connected with the connecting pipe that can dismantle, connecting pipe upside left part is connected with the clarifier, the connecting pipe is connected with the connecting strip with the junction of cooling tube, the left part is connected with the filter screen in the connecting pipe, be equipped with on the cooling tube and be used for adsorbing the heat absorption mechanism that steam cooled down, the cooling tube right part is equipped with the dust removal mechanism that is used for clearing up the dust on the filter screen.

As the preferred, heat absorption mechanism is including first mounting panel, the water tank, the cooler, circulating pipe and circulating pump, and the cooling pipe front side right part is connected with two first mounting panels, is connected with the water tank between two first mounting panels, and water tank left side upper portion is connected with the cooler, and water tank left side sub-unit connection has the circulating pump, is connected with the circulating pipe between cooler and the circulating pump, and the circulating pipe cover is in the cooling pipe outside, and the circulating pump function makes water circulate from the circulating pipe and cools down the cooling pipe.

Preferably, the dust removal mechanism comprises guide plates, ejector rods and scraping plates, the guide plates are symmetrically connected to the right of the cooling pipe in a front-back sliding mode, the ejector rods are connected to the upper portions of the guide plates, the scraping plates are connected between the lower portions of the front guide plate and the rear guide plate and attached to the filter screen, and the scraping plates move up and down to clean dust on the filter screen.

As preferred, still including being used for adsorbing the adsorption apparatus who remains the dust in the air, adsorption apparatus is including guide bar, stopper, multilayer adsorption plate and first spring, and connecting pipe upside right part is connected with the guide bar, and the sliding connection has the stopper on the guide bar, and the connecting pipe right part is connected with the multilayer adsorption plate that can dismantle, and in the multilayer adsorption plate stretched into the connecting pipe, the stopper blocked multilayer adsorption plate upper right portion, was connected with first spring between stopper and the guide bar.

Preferably, still including the mechanism that falls that is used for falling the cooling tube inner wall absorption dust that shakes, the mechanism that falls shakes is including the leading truck, strike the frame, torsion spring, the push rod, second spring and guide rail, the position of the cooling tube upside inclined to the right side is connected with the leading truck, the symmetrical rotary type is connected with strikes the frame around leading truck upper portion, strike and all be connected with torsion spring between frame and the leading truck, torsion spring is in deformation state, leading truck upper portion sliding connection has the push rod, be connected with the second spring between push rod and the leading truck, all be connected with the guide rail on the ejector rod, the guide rail all is connected with the push rod sliding connection, strike a frame right part and adjacent guide rail contact, the push rod moves extrusion guide rail that moves to the right and upwards moves, and then the drive scraper blade upwards moves scrapes the dust on the filter screen.

Preferably, the dust and impurity collecting device further comprises a falling mechanism for collecting dust and impurities, the falling mechanism comprises a second mounting plate, a collecting box and a funnel, the left part of the lower side of the connecting pipe is connected with the second mounting plate, the lower part of the second mounting plate is connected with the collecting box, the right part of the lower side of the cooling pipe is connected with the funnel, and the funnel is clamped with the collecting box and communicated with the collecting box.

Preferably, the adjusting mechanism is used for adjusting the size of the airflow and comprises a guide sleeve, an adjusting plate and an adjusting rod, the position on the right side of the upper side of the connecting pipe is connected with the guide sleeve, the position on the right side in the connecting pipe is rotatably connected with the adjusting plate, and the guide sleeve is internally connected with the adjusting rod in a sliding manner.

Preferably, the adjusting device further comprises a rotating handle, the upper part of the adjusting plate is connected with the rotating handle, and the rotating handle is in contact with the adjusting rod.

The invention has the following advantages: 1. this device is installed at the boiler afterbody, and boiler steam gets into the cooling tube, and the cold water that flows through the circulation tube inner loop cools down, and filter screen and clarifier can carry out filtration purification to the dust impurity in the steam, and scraper blade rebound can scrape the dust impurity of adhesion on the filter screen down, avoids dust impurity to pile up too much influence and ventilates, and because the connecting pipe is for dismantling the setting, can make things convenient for the staff to overhaul more.

2. The hot gas in the connecting pipe is purified and filtered for the second time through the multilayer adsorption plate, and the multilayer adsorption plate can also be detached and cleaned.

3. The knocking frame rotates to knock the cooling pipe, and then dust and impurities adhered to the inner wall of the cooling pipe are shaken off.

4. The dust and impurities shaken off by the knocking frame and the dust and impurities scraped by the scraper can enter the funnel and enter the collecting box through the funnel to be collected.

5. The adjusting plate rotates to change the size of a gap between the adjusting plate and the connecting pipe, and then the size of the air flow is adjusted.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial perspective view of the present invention.

Fig. 3 is a schematic perspective view of the heat absorbing mechanism of the present invention.

Fig. 4 is a schematic perspective view of a first dust removing mechanism of the present invention.

Fig. 5 is a schematic perspective view of a second dust removing mechanism of the present invention.

Fig. 6 is a schematic perspective view of a first adsorption mechanism according to the present invention.

Fig. 7 is a schematic perspective view of a second adsorption mechanism according to the present invention.

Fig. 8 is a schematic perspective view of a first embodiment of a vibration-damping mechanism according to the present invention.

Fig. 9 is a schematic perspective view of a second embodiment of the vibration-damping mechanism of the present invention.

Fig. 10 is a schematic perspective view of the falling mechanism of the present invention.

Fig. 11 is a schematic perspective view of a first adjustment mechanism according to the present invention.

Fig. 12 is a schematic perspective view of a second adjustment mechanism of the present invention.

In the above drawings: 1: cooling tube, 2: connecting pipe, 3: purifier, 4: connecting strip, 5: a filter screen, 6: heat absorbing mechanism, 61: first mounting plate, 62: water tank, 63: cooler, 64: circulation pipe, 65: circulating pump, 7: dust removal mechanism, 71: guide plate, 72: ejector rod, 73: scraper, 8: adsorption mechanism, 81: guide bar, 82: stopper, 83: multilayer adsorption plate, 84: first spring, 9: shake-off mechanism, 91: guide frame, 92: knocking frame, 93: torsion spring, 94: push rod, 95: second spring, 96: guide rail, 10: drop-back mechanism, 101: second mounting plate, 102: collection box, 103: hopper, 11: adjustment mechanism, 111: guide sleeve, 112: adjusting plate, 113: adjusting rod, 12: and (7) rotating a handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings in combination with the embodiments. It is to be understood that these descriptions are only illustrative and are not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example 1

The utility model provides a afterbody heat sink for boiler, as shown in fig. 1-5, including cooling tube 1, connecting pipe 2, clarifier 3, connecting strip 4, the filter screen 5, heat absorption mechanism 6 and dust removal mechanism 7, cooling tube 1 right side is connected with connecting pipe 2 that can dismantle, the side left part is connected with clarifier 3 on connecting pipe 2, clarifier 3 is used for purifying steam, connecting pipe 2 is connected with connecting strip 4 with the junction of cooling tube 1, the left part is connected with filter screen 5 in the connecting pipe 2, filter screen 5 is used for filtering the dust impurity in the steam, be equipped with heat absorption mechanism 6 on the cooling tube 1, heat absorption mechanism 6 can adsorb steam and cool down, cooling tube 1 right part is equipped with dust removal mechanism 7, dust removal mechanism 7 can clear up the dust on the filter screen 5.

When using the device, the staff installs cooling tube 1 to the boiler on, steam in the boiler gets into in the cooling tube 1, carry out heat absorption cooling treatment through heat absorption mechanism 6, steam after the cooling gets into in connecting pipe 2, filter screen 5 filters the large granule dust impurity in the steam, steam after the filtration gets into connecting pipe 2, carry out purification treatment through clarifier 3, at the in-process that this device used, staff's accessible dust removal mechanism 7 clears up the dust impurity on filter screen 5, avoid dust impurity to pile up too much influence and ventilate, when needs are dismantled this device and are overhauld, the staff can loosen connecting strip 4, then dismantle connecting pipe 2 from cooling tube 1, after the maintenance is accomplished, the staff reinstalls connecting pipe 2 on cooling tube 1, rethread connecting strip 4 fixes.

As shown in fig. 1 and 3, the heat absorbing mechanism 6 includes first mounting plates 61, a water tank 62, a cooler 63, a circulating pipe 64, and a circulating pump 65, two first mounting plates 61 are welded on the right portion of the front side of the cooling pipe 1, the water tank 62 is bolted between the two first mounting plates 61, the water tank 62 is used for containing water, the cooler 63 is connected on the upper portion of the left side of the water tank 62, the circulating pump 65 is connected on the lower portion of the left side of the water tank 62, the circulating pipe 64 is connected between the cooler 63 and the circulating pump 65, and the circulating pipe 64 is sleeved on the outer side of the cooling pipe 1.

When using the device, the staff starts circulating pump 65, circulating pump 65 operates in the water suction circulating pipe 64 in with water tank 62, water flows through circulating pipe 64 and cools down to cooling tube 1 to adsorb the heat of steam in the cooling tube 1, water after the heat absorption flows into water tank 62 again after the cooler 63 cools down, circulating pipe 64 continuously operates and makes cold water constantly circulate and carry out the heat absorption cooling to cooling tube 1, after this device uses the completion, the staff closes circulating pump 65.

As shown in fig. 1, 4 and 5, the dust removing mechanism 7 includes a guide plate 71, a top rod 72 and a scraper 73, the guide plate 71 is connected to the right portion of the cooling pipe 1 in a sliding manner, the top rods 72 are welded to the upper portion of the guide plate 71, the scraper 73 is welded between the lower portions of the front and rear guide plates 71, and the scraper 73 is attached to the filter screen 5.

When the device is used, a worker pulls the ejector rod 72 to move upwards, the ejector rod 72 moves upwards to drive the guide plate 71 to slide upwards, the guide plate 71 slides upwards to drive the scraper plate 73 to move upwards, the scraper plate 73 moves upwards to scrape dust and impurities adhered to the filter screen 5, excessive influence on ventilation caused by accumulation of the dust and impurities is avoided, after the dust and impurities are scraped, the worker pushes the ejector rod 72 to move downwards, the ejector rod 72 moves downwards to drive the guide plate 71 to slide downwards, and the guide plate 71 slides downwards to drive the scraper plate 73 to move downwards to reset.

Example 2

On embodiment 1's basis, as shown in fig. 1, fig. 6 and fig. 7, still including adsorption apparatus 8, adsorption apparatus 8 can adsorb remaining dust in the air, adsorption apparatus 8 is including guide bar 81, stopper 82, multilayer adsorption plate 83 and first spring 84, connecting pipe 2 upside right part welding has guide bar 81, sliding connection has stopper 82 on guide bar 81, connecting pipe 2 right part is connected with the multilayer adsorption plate 83 that can dismantle, multilayer adsorption plate 83 stretches into in the connecting pipe 2, stopper 82 blocks the upper right part of multilayer adsorption plate 83, be connected with first spring 84 between stopper 82 and the guide bar 81.

When using the device, steam in the connecting pipe 2 carries out secondary purification and filtration through multilayer adsorption plate 83, when needs are cleared up multilayer adsorption plate 83, the staff promotes stopper 82 and upwards slides, first spring 84 takes place deformation, stopper 82 no longer blocks multilayer adsorption plate 83 after upwards sliding, at this moment, the staff alright dismantle multilayer adsorption plate 83 from connecting pipe 2 and clear up, the clearance is accomplished the back, the staff installs multilayer adsorption plate 83 back again on connecting pipe 2, then loosen stopper 82 again, under the effect that first spring 84 resets, stopper 82 slides downwards thereupon and blocks multilayer adsorption plate 83 again.

As shown in fig. 1, 8 and 9, the cooling tube device further comprises a vibration falling mechanism 9, the vibration falling mechanism 9 can vibrate the inner wall of the cooling tube 1 to adsorb dust, the vibration falling mechanism 9 comprises a guide frame 91, a knocking frame 92, a torsion spring 93, a push rod 94, a second spring 95 and a guide rail 96, the guide frame 91 is welded at the position of the right part of the upper side of the cooling tube 1, the knocking frame 92 is symmetrically and rotatably connected to the front and back of the upper part of the guide frame 91, the torsion spring 93 is connected between the knocking frame 92 and the guide frame 91, the torsion spring 93 is in a deformation state, the push rod 94 is slidably connected to the upper part of the guide frame 91, the second spring 95 is connected between the push rod 94 and the guide frame 91, the guide rail 96 is welded on the push rod 72, the guide rail 96 is slidably connected with the push rod 94, and the right part of the knocking frame 92 is in contact with the adjacent guide rail 96.

When the device is used, a worker pushes the push rod 94 to slide rightwards, the second spring 95 deforms, the push rod 94 slides rightwards to extrude the guide rail 96 to move upwards, the guide rail 96 moves upwards to drive the ejector rod 72 to move upwards, the scraper 73 moves upwards to clean the filter screen 5, after the guide rail 96 moves upwards, under the reset action of the torsion spring 93, the left part of the knocking frame 92 swings downwards to knock the cooling pipe 1, dust impurities adhered to the inner wall of the cooling pipe 1 are shaken off, then the worker loosens the push rod 94, under the reset action of the second spring 95, the push rod 94 slides leftwards to reset, the push rod 94 slides leftwards to extrude the guide rail 96 to move downwards, the guide rail 96 drives the ejector rod 72 to move downwards to reset, the right part of the knocking frame 92 swings downwards while the guide rail 96 moves downwards, the left part of the knocking frame 92 swings upwards along with the guide rail, and the torsion spring 93 deforms.

As shown in fig. 1 and 10, the dust and impurity collecting device further comprises a falling mechanism 10, the falling mechanism 10 can collect dust and impurity, the falling mechanism 10 comprises a second mounting plate 101, a collecting box 102 and a funnel 103, the second mounting plate 101 is welded on the left portion of the lower side of the connecting pipe 2, the collecting box 102 is bolted to the lower portion of the second mounting plate 101, the collecting box 102 is used for collecting dust and impurity, the funnel 103 is connected to the right portion of the lower side of the cooling pipe 1, and the funnel 103 is connected with the collecting box 102 in a clamped mode and communicated with each other.

When the device is used, dust impurities shaken off by the knocking frame 92 and dust impurities scraped by the scraper 73 enter the funnel 103 and enter the collecting box 102 through the funnel 103 to be collected, and when the connecting pipe 2 is detached from the cooling pipe 1, the funnel 103 and the collecting box 102 are clamped and can be detached and separated, so that the connecting pipe 2 is prevented from being affected to detach.

As shown in fig. 1, 11 and 12, the air flow adjusting device further includes an adjusting mechanism 11, the adjusting mechanism 11 can adjust the size of the air flow, the adjusting mechanism 11 includes a guide sleeve 111, an adjusting plate 112 and an adjusting rod 113, the guide sleeve 111 is welded at a position on the upper side of the connecting pipe 2 on the right side, the adjusting plate 112 is rotatably connected at a position on the inner side of the connecting pipe 2 on the right side, and the adjusting rod 113 is slidably connected in the guide sleeve 111.

As shown in fig. 11 and 12, the adjusting device further comprises a rotating handle 12, the rotating handle 12 is welded on the upper portion of the adjusting plate 112, and the rotating handle 12 is in contact with the adjusting rod 113.

When the device is used, a worker pulls the adjusting rod 113 to slide upwards in the guide sleeve 111 without clamping the rotating handle 12, at this time, the worker can rotate the rotating handle 12, the rotating handle 12 rotates to drive the adjusting plate 112 to rotate, the adjusting plate 112 rotates to change the size of a gap between the adjusting plate and the connecting pipe 2, the size of air flow is further adjusted, after the adjusting plate 112 rotates to a proper angle, the worker pushes the adjusting rod 113 to slide downwards, the adjusting rod 113 slides downwards and then clamps the rotating handle 12, and the position of the adjusting plate 112 is further fixed.

The above description is only an example of the present invention and is not intended to limit the present invention. All equivalents which come within the spirit of the invention are therefore intended to be embraced therein. Details not described herein are well within the skill of those in the art.

Claims

1. The utility model provides a afterbody heat sink for boiler, including cooling tube (1), connecting pipe (2) and connecting strip (4), cooling tube (1) right side is connected with connecting pipe (2) that can dismantle, connecting pipe (2) are connected with connecting strip (4) with the junction of cooling tube (1), characterized by, still including clarifier (3), filter screen (5), heat absorption mechanism (6) and dust removal mechanism (7), connecting pipe (2) upside left part is connected with clarifier (3), the left part is connected with filter screen (5) in connecting pipe (2), be equipped with on cooling tube (1) and be used for adsorbing heat absorption mechanism (6) that steam cooled down, cooling tube (1) right part is equipped with dust removal mechanism (7) that are used for clearing up the dust on filter screen (5).

2. The tail heat absorbing device for the boiler is characterized in that the heat absorbing mechanism (6) comprises first mounting plates (61), a water tank (62), a cooler (63), circulating pipes (64) and circulating pumps (65), the two first mounting plates (61) are connected to the right portion of the front side of the cooling pipe (1), the water tank (62) is connected between the two first mounting plates (61), the cooler (63) is connected to the upper portion of the left side of the water tank (62), the circulating pumps (65) are connected to the lower portion of the left side of the water tank (62), the circulating pipes (64) are connected between the cooler (63) and the circulating pumps (65), the circulating pipes (64) are sleeved on the outer side of the cooling pipe (1), and the circulating pumps (65) operate to enable water to circulate in the circulating pipes (64) to cool the cooling pipe (1).

3. The tail heat absorption device for the boiler as claimed in claim 2, characterized in that the dust removing mechanism (7) comprises a guide plate (71), a top rod (72) and a scraper (73), the guide plate (71) is connected to the right part of the cooling pipe (1) in a front-back symmetrical sliding manner, the top rod (72) is connected to the upper part of the guide plate (71), the scraper (73) is connected between the lower parts of the front guide plate and the rear guide plate (71), the scraper (73) is attached to the filter screen (5), and the scraper (73) moves up and down to clean dust on the filter screen (5).

4. The tail heat absorption device for the boiler according to claim 3, further comprising an adsorption mechanism (8) for adsorbing residual dust in air, wherein the adsorption mechanism (8) comprises a guide rod (81), a limiting block (82), a plurality of layers of adsorption plates (83) and a first spring (84), the guide rod (81) is connected to the right part of the upper side of the connecting pipe (2), the limiting block (82) is connected to the guide rod (81) in a sliding manner, the detachable layers of adsorption plates (83) are connected to the right part of the connecting pipe (2), the plurality of layers of adsorption plates (83) extend into the connecting pipe (2), the limiting block (82) blocks the upper right part of the plurality of layers of adsorption plates (83), and the first spring (84) is connected between the limiting block (82) and the guide rod (81).

5. The tail heat absorption device for the boiler as claimed in claim 4, further comprising a shaking and dropping mechanism (9) for adsorbing dust on the inner wall of the shaking and dropping cooling pipe (1), wherein the shaking and dropping mechanism (9) comprises a guide frame (91), a knocking frame (92), a torsion spring (93), a push rod (94), a second spring (95) and a guide rail (96), the position of the upper side of the cooling pipe (1) on the right side is connected with the guide frame (91), the front and back symmetrical and rotary type upper portion of the guide frame (91) is connected with the knocking frame (92), the torsion springs (93) are connected between the knocking frame (92) and the guide frame (91), the torsion springs (93) are in a deformation state, the upper portion of the guide frame (91) is connected with the push rod (94) in a sliding manner, the second spring (95) is connected between the push rod (94) and the guide frame (91), the guide rail (96) is connected on the push rod (72), the guide rail (96) is connected with the push rod (94) in a sliding manner, the right portion of the knocking frame (92) is in contact with the adjacent guide rail (96), the push rod (94) moves rightwards to extrude the guide rail (96), and further to move the scraper (73), and drive the scraper (5) to move upwards to drive the scraper (5).

6. The tail heat absorption device for the boiler as claimed in claim 5, further comprising a falling mechanism (10) for collecting dust and impurities, wherein the falling mechanism (10) comprises a second mounting plate (101), a collection box (102) and a funnel (103), the second mounting plate (101) is connected to the left part of the lower side of the connecting pipe (2), the collection box (102) is connected to the lower part of the second mounting plate (101), the funnel (103) is connected to the right part of the lower side of the cooling pipe (1), and the funnel (103) is clamped with the collection box (102) and communicated with each other.

7. The rear heat absorbing device for the boiler as claimed in claim 6, further comprising an adjusting mechanism (11) for adjusting the size of the air flow, wherein the adjusting mechanism (11) comprises a guide sleeve (111), an adjusting plate (112) and an adjusting rod (113), the guide sleeve (111) is connected to the position of the upper side of the connecting pipe (2) which is inclined to the right, the adjusting plate (112) is rotatably connected to the position of the inner side of the connecting pipe (2) which is inclined to the right, and the adjusting rod (113) is slidably connected to the inner side of the guide sleeve (111).

8. A rear heat absorber device for a boiler as claimed in claim 7, further comprising a rotary handle (12), wherein the rotary handle (12) is connected to an upper portion of the adjusting plate (112), and the rotary handle (12) is in contact with the adjusting rod (113).