Boiler waste heat recovery equipment

Abstract

The utility model discloses boiler waste heat recovery equipment, which relates to the technical field of boiler waste heat recovery and comprises a water tank, a spiral smoke pipe is mounted in the water tank, two ends of the smoke pipe penetrate through the side wall of the water tank, and the upper surface of the water tank is fixedly connected with a support box. A hollow shaft is rotationally connected in the upper wall of the water tank and located in the supporting box, the hollow shaft is sleeved with the spiral smoke pipe, an opening is formed in the upper end of the hollow shaft, and a rotating shaft is jointly rotationally connected in the upper wall of the supporting box and the lower end of the hollow shaft; a plurality of lower stirring rods are fixedly connected to the portion, located below the hollow shaft, of the side surface of the rotating shaft, and a plurality of upper stirring rods are fixedly connected to the portion, located in the water tank, of the side surface of the hollow shaft. The water is stirred by anticlockwise rotation of the upper stirring rod and the stirring frame and clockwise rotation of the lower stirring rod, so that the water can be uniformly heated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler waste heat recovery technical field, concretely is a kind of boiler waste heat recovery equipment. BACKGROUND

[0002] Boiler is a kind of energy conversion equipment, the energy input to boiler has chemical energy in fuel, electric energy, boiler exports steam with certain heat energy, high-temperature water or organic heat carrier, fuel combustion in boiler produces flue gas, flue gas can carry a large amount of waste heat, in order to reduce the waste of energy, not to the purpose of energy saving and emission reduction, need to use waste heat recovery device to recycle and utilize flue gas waste heat.

[0003] As the utility model patent with the announcement number CN218884720U, a kind of boiler flue gas heat recovery device, including main recovery mechanism and vice recovery mechanism, the main recovery mechanism includes water storage bucket and spiral smoke pipe, the spiral smoke pipe is fixedly installed in the middle part of water storage bucket, the vice recovery mechanism includes water tank and bent smoke pipe, the water tank is arranged on the outside of water storage bucket, the bent smoke pipe is fixedly installed in the middle part of water tank, and bent smoke pipe is connected with spiral smoke pipe, it is convenient to need heat recovery just can be connected with the flue gas outlet of boiler by smoke inlet pipe, so that it guarantees that flue gas can enter into spiral smoke pipe by smoke inlet pipe, so it can guarantee that the heat in flue gas is exchanged with the water in the inside of water storage bucket by spiral smoke pipe, to achieve the purpose of heat recovery, finally, the flue gas after heat exchange is discharged by smoke outlet pipe.

[0004] However, the utility model in use, the contact area of smoke pipe and water is limited, it is easy to cause uneven heating of water, and the use effect is poor. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of boiler waste heat recovery equipment to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of boiler waste heat recovery equipment, including water tank, the spiral smoke pipe is installed in the water tank, the both ends of the smoke pipe are through the side wall of the water tank, the upper surface of the water tank is fixedly connected with support box, the hollow shaft is rotatably connected in the upper wall of the water tank and located in the support box, the hollow shaft is sheathed with the spiral smoke pipe, the upper end of the hollow shaft is open, the upper wall of the support box and the lower end of the hollow shaft are rotatably connected with the rotating shaft, the rotating shaft side surface and located below the hollow shaft are fixedly connected with multiple lower stirring rods, the hollow shaft side surface and located in the water tank are fixedly connected with multiple upper stirring rods.

[0007] Preferably, the rotation shaft side surface and the support box are fixedly connected with a first driven bevel gear, the support box right surface is fixedly connected with a speed reducer, the speed reducer driving end penetrates the support box right wall and is fixedly connected with a driving bevel gear, the first driven bevel gear is engaged with the driving bevel gear, the hollow shaft side surface and the support box are fixedly connected with a second driven bevel gear, and the second driven bevel gear is engaged with the driving bevel gear.

[0008] Preferably, the hollow shaft lower part side surface is fixedly connected with a stirring frame, and the lower stirring rod is located in the stirring frame.

[0009] Preferably, the water tank upper wall is communicated with a water inlet pipe, the water inlet pipe is provided with a water inlet valve, the water tank right wall bottom is communicated with a drain pipe, and the drain pipe is provided with a water outlet valve.

[0010] Beneficial effects:

[0011] The utility model provides a kind of boiler waste heat recovery equipment, with the following beneficial effects:

[0012] Flue gas enters into helical flue by helical flue left end, helical flue heats water by flue gas waste heat, and the water is stirred by the anticlockwise rotation of upper stirring rod and stirring frame and the clockwise rotation of lower stirring rod, so that water is heated uniformly. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the front view of the utility model;

[0014] Fig. 2 It is the front view of the hollow shaft in the utility model.

[0015] In the drawing: 1, water tank; 2, lower stirring rod; 3, rotation shaft; 4, water outlet valve; 5, drain pipe; 6, helical flue; 7, hollow shaft; 8, upper stirring rod; 9, support box; 10, speed reducer; 11, water inlet pipe; 12, water inlet valve; 13, driving bevel gear; 14, first driven bevel gear; 15, second driven bevel gear; 16, stirring frame. DETAILED DESCRIPTION

[0016] The technical solutions in the utility model will be described clearly and completely below in conjunction with the drawings in the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0017] The directions mentioned in the utility model, such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like, are only reference directions shown in the drawings, and the directions are used to explain and understand the utility model, and are not used to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0018] Please refer to Figs. 1-2 The utility model provides a kind of technical scheme: a boiler waste heat recovery equipment, including water tank 1, spiral flue 6 is installed in water tank 1, flue both ends penetrate water tank 1 side wall, support box 9 is fixedly connected on the upper surface of water tank 1, hollow shaft 7 is rotatably connected in the upper wall of water tank 1 and located in support box 9, hollow shaft 7 is covered with spiral flue 6, the upper end of hollow shaft 7 is open, the upper wall of support box 9 and the lower end of hollow shaft 7 are rotatably connected with shaft 3, a plurality of lower stirring rods 2 are fixedly connected on the side surface of shaft 3 and located below hollow shaft 7, a plurality of upper stirring rods 8 are fixedly connected on the side surface of hollow shaft 7 and located in water tank 1;First driven bevel gear 14 is fixedly connected on the side surface of shaft 3 and located in support box 9, speed reducer motor 10 is fixedly connected on the right surface of support box 9, driving end of speed reducer motor 10 is fixedly connected with driving bevel gear 13 penetrating the right wall of support box 9, first driven bevel gear 14 is engaged with driving bevel gear 13, second driven bevel gear 15 is fixedly connected on the side surface of hollow shaft 7 and located in support box 9, and second driven bevel gear 15 is engaged with driving bevel gear 13;Stirring frame 16 is fixedly connected on the lower part side surface of hollow shaft 7, and lower stirring rod 2 is located in stirring frame 16;Water tank 1 upper wall is communicated with water inlet pipe 11, water inlet valve 12 is installed on water inlet pipe 11, and water tank 1 right wall bottom is communicated with drain pipe 5, and water outlet valve 4 is installed on drain pipe 5.

[0019] By the person skilled in the art, all electrical components in the case and their adapted power supply are electrically connected, and appropriate controller should be selected according to actual situation to meet the control requirement, and the specific connection and control sequence should be completed electrically connected according to the working order between each electrical component in the following working principle, and the detailed connection means is the public known technology in the art, and the following mainly introduces working principle and process, and the electrical control is not explained.

[0020] Embodiment: according to the description attached Figs. 1-2It can be known that, in use, connecting each pipeline, water through the water inlet pipe 11 can enter the water tank 1, flue gas through the spiral-shaped smoke pipe 6 left end into the spiral-shaped smoke pipe 6, the spiral-shaped smoke pipe 6 through the flue gas waste heat to heat the water, starting the speed reducer 10 can drive the driving bevel gear 13 rotation, through the driving bevel gear 13 rotation can drive the first driven bevel gear 14 clockwise rotation and the second driven bevel gear 15 counterclockwise rotation, through the first driven bevel gear 14 clockwise rotation can drive the shaft 3 clockwise rotation, through the shaft 3 clockwise rotation can drive the lower stirring rod 2 clockwise rotation, through the second driven bevel gear 15 counterclockwise rotation can drive the hollow shaft 7 counterclockwise rotation, through the hollow shaft 7 counterclockwise rotation can drive the upper stirring rod 8 and the stirring frame 16 counterclockwise rotation, through the upper stirring rod 8 and the stirring frame 16 counterclockwise rotation and the lower stirring rod 2 clockwise rotation to the water stirring can make the water heated evenly, when people need to use hot water, open the water outlet valve 4 can use hot water.

[0021] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler heat recovery apparatus, characterized by, The utility model provides a water tank (1) is installed spiral smoke pipe (6) in, the smoke pipe both ends penetrate the lateral wall of water tank (1), the upper surface fixed connection of water tank (1) has support box (9), the upper wall of water tank (1) and be located in the rotation connection of support box (9) has hollow shaft (7), the hollow shaft (7) is covered with spiral smoke pipe (6), the upper end of hollow shaft (7) is open, the upper wall of support box (9) and the lower end of hollow shaft (7) are jointly rotationally connected with the rotating shaft (3), the side surface of rotating shaft (3) and be located below the hollow shaft (7) fixed connection has a plurality of lower stirring rod (2), the side surface of hollow shaft (7) and be located in water tank (1) fixed connection has a plurality of upper stirring rod (8).

2. A boiler heat recovery apparatus according to claim 1, wherein The side surface of rotating shaft (3) and be located in the support box (9) fixed connection has first driven bevel gear (14), the right surface fixed connection of support box (9) has speed -reducing motor (10), the driving end fixed connection of speed -reducing motor (10) has driving bevel gear (13) through the right wall of support box (9), first driven bevel gear (14) engages with driving bevel gear (13), the side surface fixed connection of hollow shaft (7) and be located in the support box (9) has second driven bevel gear (15), second driven bevel gear (15) engages with driving bevel gear (13).

3. A boiler heat recovery apparatus according to claim 1, wherein The lower part side surface fixed connection of hollow shaft (7) has stirring frame (16), and lower stirring rod (2) is located in stirring frame (16).

4. A boiler heat recovery apparatus according to claim 1, wherein The upper wall of water tank (1) is communicated with water inlet pipe (11), and water inlet valve (12) is installed on water inlet pipe (11), and the bottom of right wall of water tank (1) is communicated with drain pipe (5), and water outlet valve (4) is installed on drain pipe (5).

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