Boiler with heat cycle function

Abstract

The utility model discloses a boiler with a heat circulation function, which comprises a boiler main body, a heat circulation utilization mechanism is fixedly arranged at the gas outlet end of the boiler main body, and a waste gas filtering device is fixedly arranged at the top end of the heat circulation utilization mechanism. The heat recycling mechanism is installed, gas exhausted by the boiler is blown into the recycling box, heat exchange can be carried out on water flowing in the heat absorption coiled pipe, the snake-shaped heat absorption coiled pipe can prolong the heat exchange time and improve the heat exchange effect, high-temperature water flow absorbed by the interior of the heat absorption coiled pipe can enter the boiler body, and therefore heat exchange efficiency is improved. Water is provided for the boiler body, the heating time is shortened, then waste heat is recycled, in addition, a steam plate can collect water drops generated by entering high-temperature gas, a waste gas filtering device is installed, the gas can be sucked into a filtering box through a gas suction fan after heat exchange, the gas can be filtered through layer-by-layer filtering net plates, and therefore the heat exchange efficiency is improved. And the pollution of the discharged gas to the surrounding environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a boiler with a heat circulation function. Background Art

[0002] A boiler is an energy conversion device that converts input energy (such as chemical energy in fuel or electrical energy) into thermal energy to produce steam, high-temperature water or organic heat carrier.

[0003] The prior art has a publication number of CN220229086U, and the technical solution disclosed in this patent document is as follows: a circulating waste heat boiler, including a bottom plate, and also including: a circulating heat exchange mechanism, arranged on the top surface of the bottom plate near the right end, for absorbing the heat of the exhaust gas discharged from the smoke duct, the circulating heat exchange mechanism includes a heat exchange box located above the bottom plate, and the smoke duct passes through the left and right outer walls of the heat exchange box in sequence and extends to the right side of the heat exchange box; the utility model connects the two water outlet pipes together through an external connecting pipe, and by setting up a circulating heat exchange mechanism, the water can be circulated, so that the heat of the exhaust gas discharged from the smoke duct can be continuously absorbed, so that the waste heat recovery effect of the entire waste heat boiler is better.

[0004] The above technical solution recovers the heat of the exhausted exhaust gas through the smoke duct, but the smoke duct has a simple design structure and the effect of waste heat recovery is poor. In addition, no exhaust gas treatment structure is set, resulting in the exhaust gas discharged from the smoke duct being directly discharged into the atmosphere, causing pollution to the surrounding environment. Utility Model Content

[0005] The purpose of the present invention is to provide a boiler with a heat circulation function to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a boiler with a heat circulation function, comprising a boiler body, a heat circulation mechanism fixedly installed at the gas outlet end of the boiler body, and an exhaust gas filtering device fixedly installed at the top of the heat circulation mechanism.

[0007] The heat recycling mechanism includes a recovery box, which is arranged at the top of the boiler body. A heat-absorbing serpentine pipe is fixedly connected to the upper part of the recovery box. The water inlet end of the heat-absorbing serpentine pipe passes through the recovery box and is connected to an external water tank. The water outlet end of the heat-absorbing serpentine pipe passes through the recovery box and is provided with a water inlet pipe through a flange. The water inlet pipe is connected to the boiler body.

[0008] In the above technical solution, the gas discharged from the boiler is blown into the recovery box, which can exchange heat with the water flowing in the heat-absorbing serpentine tube, and the serpentine-shaped heat-absorbing serpentine tube can increase the heat exchange time and improve the heat exchange effect.

[0009] The exhaust gas filtering device includes a filter screen plate, and the front and rear ends of the filter screen plate are both provided with mounting slides. The upper and lower ends of the connection between the mounting slide and the filter screen plate are both provided with mounting grooves, and the mounting grooves are both bolted with connecting plates.

[0010] In the above technical solution, the gas can be filtered through the layers of filter screens, reducing the pollution of the exhaust gas to the surrounding environment, and the filter screens are connected to the mounting slides by bolts, which is convenient for disassembly and replacement.

[0011] As a further preferred embodiment of the present technical solution, an air outlet pipe is fixedly connected to the bottom side of the recovery box, and the other end of the air outlet pipe is connected to the air outlet end of the boiler body.

[0012] As a further preferred embodiment of the present technical solution, a steam plate is fixedly connected to the inner wall of the recovery box below the heat-absorbing serpentine tube, and a water outlet pipe is provided on the outer wall below the recovery box, and a valve is provided on the water outlet pipe.

[0013] In the above technical solution, the steam plate provided can collect the water droplets generated by the incoming high-temperature gas, which can then be discharged through the valve on the water outlet pipe.

[0014] As a further preferred embodiment of the present technical solution, the exhaust gas filtering device further includes an air intake pipe, which is arranged at the top of the recovery box, and an air intake fan is installed on the air intake pipe. The air outlet end of the air intake pipe is fixedly connected to the filter box, and the front and rear inner walls of the filter box are fixedly connected to mounting plates, and mounting grooves are provided on the mounting plates.

[0015] In the above technical solution, the filter screen plate is connected to the filter box in a sliding manner, which facilitates subsequent disassembly and cleaning.

[0016] As a further preferred embodiment of the present technical solution, a plurality of the installation slide grooves are provided, and the inner walls of the installation slide grooves are slidably connected to the outer walls of the installation slide plate and correspond one to one.

[0017] As a further preferred embodiment of the present technical solution, a top plate is bolted to the top side of the filter box, handles are fixedly connected to the front and rear ends of the top plate, and an embedding groove is arranged in the middle of the top plate.

[0018] As a further preferred embodiment of the present technical solution, the top sides of the filter screen plates are fixedly connected with handles, and the handles pass through the embedding slots and correspond one to one.

[0019] The utility model provides a boiler with a heat circulation function, which has the following beneficial effects:

[0020] (1) The utility model installs a heat recycling mechanism to blow the gas discharged from the boiler into the recovery box, which can exchange heat with the water flowing in the heat-absorbing serpentine tube. The serpentine-shaped heat-absorbing serpentine tube can increase the heat exchange time and improve the heat exchange effect. The high-temperature water flow absorbed by the heat-absorbing serpentine tube will enter the interior of the boiler body, providing water for the boiler body, reducing the heating time, and thus recycling the waste heat. The steam plate provided in addition can collect the water droplets generated by the incoming high-temperature gas.

[0021] (2) The utility model installs an exhaust gas filtering device. After heat exchange, the gas can be drawn into the filter box through the suction fan. The gas can be filtered through layers of filter plates, reducing the pollution of the exhaust gas to the surrounding environment. The filter plates are connected to the filter box in a sliding manner, which is convenient for subsequent disassembly and cleaning. In addition, the filter plates are connected to the installation slide plate by bolts, which is convenient for disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the boiler of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the heat recycling mechanism of the utility model;

[0024] Figure 3 This is a schematic structural diagram of the exhaust gas filtering device of the present utility model;

[0025] Figure 4 This is a schematic diagram of the structure between the installation slide plate and the filter screen plate of the utility model;

[0026] In the figure: 1. Boiler body; 2. Heat recycling mechanism; 3. Exhaust gas filtering device; 21. Recovery box; 22. Air outlet pipe; 23. Water outlet pipe; 24. Steam plate; 25. Heat absorbing serpentine pipe; 26. Water inlet pipe; 31. Air inlet pipe; 32. Intake fan; 33. Filter box; 34. Mounting plate; 341. Mounting slide; 35. Top plate; 351. Embedded groove; 352. Handle; 36. Mounting slide; 37. Filter screen plate; 371. Handle; 372. Mounting groove; 373. Connecting plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] The utility model provides a technical solution: Figure 1 As shown, in this embodiment, a boiler with a heat circulation function includes a boiler body 1, a heat circulation mechanism 2 is fixedly installed on the gas outlet end of the boiler body 1, and an exhaust gas filtering device 3 is fixedly installed on the top of the heat circulation mechanism 2.

[0029] like Figure 2 As shown, the heat recycling mechanism 2 includes a recovery box 21, which is arranged at the top of the boiler body 1. A heat absorbing serpentine pipe 25 is fixedly connected to the upper part of the recovery box 21. The water inlet end of the heat absorbing serpentine pipe 25 passes through the recovery box 21 and is connected to the external water tank. The water outlet end of the heat absorbing serpentine pipe 25 passes through the recovery box 21 and is provided with a water inlet pipe 26 through a flange. The water inlet pipe 26 is connected to the boiler body 1. An air outlet pipe 22 is fixedly connected to the bottom side of the recovery box 21. The other end of the air outlet pipe 22 is connected to the air outlet end of the boiler body 1. A steam plate 24 is fixedly connected to the inner wall of the recovery box 21 and located below the heat absorbing serpentine pipe 25. A water outlet pipe 23 is provided on the outer wall below the recovery box 21, and a valve is provided on the water outlet pipe 23. By installing the heat recycling mechanism 2, the gas discharged from the boiler is blown into the recovery box 21, which can exchange heat with the water flowing in the heat-absorbing serpentine tube 25. The snake-shaped heat-absorbing serpentine tube 25 can increase the heat exchange time and improve the heat exchange effect. The high-temperature water flow absorbed by the heat-absorbing serpentine tube 25 will enter the interior of the boiler body 1, providing water for the boiler body 1, reducing the heating time, and thereby recycling the waste heat. The steam plate 24 provided in addition can collect the water droplets generated by the entering high-temperature gas.

[0030] like Figure 3 and Figure 4 As shown, the exhaust gas filtering device 3 includes a filter screen plate 37, and the front and rear ends of the filter screen plate 37 are both provided with mounting slides 36. The upper and lower ends of the connection between the mounting slide 36 and the filter screen plate 37 are both provided with mounting grooves 372, and the mounting grooves 372 are both bolted with connecting plates 373. The exhaust gas filtering device 3 also includes an air inlet pipe 31, which is arranged at the top of the recovery box 21. An air suction fan 32 is installed on the air inlet pipe 31, and the air outlet end of the air inlet pipe 31 is fixedly connected to the filter box 33. The front and rear inner walls of the filter box 33 are both fixedly connected to the mounting plates 34, and the mounting plates 34 are both provided with mounting slides 341. There are multiple mounting slides 341, and the inner walls of the mounting slides 341 are slidably connected to the outer walls of the mounting slides 36, and In one-to-one correspondence, the top side of the filter box 33 is bolted to the top plate 35, and the front and rear ends of the top plate 35 are fixedly connected to handles 352. The middle part of the top plate 35 is provided with embedding grooves 351, and the top sides of the filter screen panels 37 are fixedly connected to handles 371. The handles 371 all pass through the embedding grooves 351 and correspond one to one. By installing the exhaust gas filtering device 3, the gas can be drawn into the filter box 33 through the suction fan 32 after heat exchange, and the gas can be filtered through the layers of filter screen panels 37 to reduce the pollution of the gas to the surrounding environment after discharge. The filter screen panels 37 are connected to the filter box 33 in a sliding manner, which is convenient for subsequent disassembly and cleaning. In addition, the filter screen panels 37 are connected to the mounting slide 36 by bolts, which is convenient for disassembly and replacement.

[0031] The utility model provides a boiler with a heat circulation function, and its specific working principle is as follows: the exhaust gas generated by the boiler body 1 enters the recovery box 21 through the outlet pipe 22, and the steam plate 24 is provided to collect the water droplets generated by the entering high-temperature gas, which can be discharged later through the valve on the outlet pipe 23. The heat can be exchanged with the water entering the boiler body 1 through the heat-absorbing serpentine pipe 25, so that the heat can be recycled; after the gas heat exchange, the gas is drawn into the filter box 33 through the suction fan 32, and the gas can be filtered through the layers of filter screen plates 37, and the filter screen plates 37 are connected to the filter box 33 in a sliding manner, and the filter screen plates 37 are connected to the mounting slide plate 36 by bolts, which is convenient for disassembly for cleaning or replacement.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler with a heat circulation function, comprising a boiler body (1), characterized in that: A heat recycling mechanism (2) is fixedly installed at the gas outlet end of the boiler body (1), and an exhaust gas filtering device (3) is fixedly installed at the top end of the heat recycling mechanism (2); The heat recycling mechanism (2) includes a recovery box (21), the recovery box (21) is arranged at the top of the boiler body (1), a heat absorbing serpentine tube (25) is fixedly connected to the upper part of the interior of the recovery box (21), the water inlet end of the heat absorbing serpentine tube (25) passes through the recovery box (21) and is connected to an external water tank, the water outlet end of the heat absorbing serpentine tube (25) passes through the recovery box (21) and is provided with a water inlet pipe (26) through a flange, and the water inlet pipe (26) is connected to the boiler body (1); The exhaust gas filtering device (3) comprises a filter screen plate (37), and the front and rear ends of the filter screen plate (37) are both provided with mounting slides (36). The upper and lower ends of the connection between the mounting slides (36) and the filter screen plate (37) are both provided with mounting grooves (372), and the mounting grooves (372) are both bolted with connecting plates (373).

2. The boiler with heat circulation function according to claim 1, characterized in that: An air outlet pipe (22) is fixedly connected to the bottom side of the recovery box (21), and the other end of the air outlet pipe (22) is connected to the air outlet end of the boiler body (1).

3. The boiler with thermal circulation function according to claim 1, characterized in that: A steam plate (24) is fixedly connected to the inner wall of the recovery box (21) and located below the heat-absorbing serpentine tube (25). A water outlet pipe (23) is provided on the outer wall below the recovery box (21), and a valve is provided on the water outlet pipe (23).

4. The boiler with heat circulation function according to claim 1, characterized in that: The exhaust gas filtering device (3) further comprises an air intake pipe (31), the air intake pipe (31) being arranged at the top end of the recovery box (21), an air intake fan (32) being installed on the air intake pipe (31), a filter box (33) being fixedly connected to the air outlet end of the air intake pipe (31), a mounting plate (34) being fixedly connected to the front and rear inner walls of the filter box (33), and a mounting slot (341) being provided on the mounting plate (34).

5. The boiler with heat circulation function according to claim 4, characterized in that: A plurality of the installation slide grooves (341) are provided, and the inner walls of the installation slide grooves (341) and the outer walls of the installation slide plates (36) are slidably connected and correspond one to one.

6. The boiler with heat circulation function according to claim 4, characterized in that: The top side of the filter box (33) is bolted to a top plate (35), the front and rear ends of the top plate (35) are fixedly connected to handles (352), and an embedding groove (351) is arranged in the middle of the top plate (35).

7. The boiler with thermal circulation function according to claim 1, characterized in that: The top sides of the filter screen plates (37) are all fixedly connected with handles (371), and the handles (371) all pass through the embedding slots (351) and correspond one to one.

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