Smoke exhaust pipe waste heat recovery device of diesel generator

Abstract

The utility model discloses a smoke exhaust pipe waste heat recovery device of a diesel generator, which comprises a device main body, a smoke inlet pipe is connected on the outer wall of one side of the device main body, a purification device is arranged on the smoke inlet pipe, a turbine box is arranged in the device main body, the smoke inlet pipe is communicated with the turbine box, and a turbine is rotatably connected in the turbine box. A spiral smoke exhaust pipe is arranged in the device body, one end of the spiral smoke exhaust pipe is communicated with the turbine box, the other end of the spiral smoke exhaust pipe extends out of the device body, a water inlet pipe is arranged at the top end of the device body, and a water outlet pipe is arranged at the bottom end of the device body. Smoke spirally flows in the spiral smoke exhaust pipe through the turbine box and then is exhausted out of the room, heat exchange is generated between the smoke and a clean water source in the device body, the temperature of the water source is increased, the smoke exhaust stroke is greatly increased through the spiral smoke exhaust pipe, the heat exchange efficiency is improved, and compared with the prior art, the waste heat recovery efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recovery device technical field especially relates to a diesel generator's exhaust pipe waste heat recovery device. BACKGROUND

[0002] The utility model discloses a waste heat recovery device technical field especially relates to a diesel generator's exhaust pipe waste heat recovery device, including exhaust pipe, water storage tank, coil, upper pressure tight shell and lower pressure tight shell, the outer detachable formula connection of coil that the coil of exhaust pipe outside is set has upper pressure tight shell and lower pressure tight shell, the inside communication of water storage tank is passed to water storage tank with the one end of pump body on water storage tank through the water pump, the other end of pump body is connected with the water inlet end through the water delivery pipe, and one end of the water outlet is connected with the drain pipe, water temperature sensor and second solenoid valve, in the utility model, the stainless steel bellows pipe with softness is wound outside the exhaust pipe, better adaptation different pipe diameter exhaust pipe uses, then the upper pressure tight shell and lower pressure tight shell that the inner wall is provided with the flexible layer of silicon rubber material are installed outside the exhaust pipe through bolt and nut, not only further improve the effective fit between the winding pipe and the exhaust pipe, and the flexible layer also plays a certain heat preservation function, improves the waste heat recovery efficiency.

[0003] The prior art realizes the effect of waste heat recovery by setting the spiral water pipe outside the exhaust pipe, but the flue gas heat is transferred through the pipe wall of the exhaust pipe and then transferred to the water source in the pipe through the pipe wall of the water pipe, which is easy to cause heat loss and low waste heat recovery efficiency, so a diesel generator's exhaust pipe waste heat recovery device is needed to meet people's needs. UTILITY MODEL CONTENTS

[0004] The utility model discloses a diesel generator's exhaust pipe waste heat recovery device to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a diesel generator's exhaust pipe waste heat recovery device, including device main part, the one side outer wall of device main part is connected with the inlet pipe, is provided with the purification device on the inlet pipe, be provided with the turbine box in device main part, the inlet pipe is communicated with turbine box, the turbine is rotatably connected in turbine box, be provided with spiral exhaust pipe in device main part, one end of spiral exhaust pipe is linked with turbine box, and the other end extends to device main part outside, be provided with the water inlet pipe on the top of device main part, be provided with the water outlet pipe on the bottom, be provided with the valve on water outlet pipe and water inlet pipe, the top of turbine box is rotatably connected with the shaft, the bottom of shaft is connected on the center of turbine, be connected with a plurality of stirring rods on the outer wall of shaft, a plurality of stirring rods are evenly arranged in the circumferential shape axial.

[0006] Preferably, a relief valve is provided on the device main body.

[0007] Preferably, a thermometer is arranged on the device body.

[0008] Preferably, a heat preservation layer is arranged on the outer wall of the device body.

[0009] Preferably, a sealing sleeve is arranged in the top end of the turbine box, and the bottom shaft body of the rotating shaft is arranged in the sealing sleeve.

[0010] Preferably, a connecting rod is arranged between the same-side axially arranged stirring rods.

[0011] Preferably, a through hole is arranged on the connecting rod and the stirring rods.

[0012] The device has the advantages that:

[0013] In the device, the flue gas in the flue gas pipe is recycled through the smoke inlet pipe, the flue gas is purified through the purification device, and the flue gas is discharged to the outside after spiral flowing in the spiral flue gas pipe through the turbine box, and heat exchange is generated with the clean water source in the device body, so that the temperature of the water source is increased, the spiral flue gas pipe greatly increases the travel of flue gas discharge, improves the heat exchange efficiency, and improves the waste heat recovery efficiency compared with the prior art.

[0014] In the device, the airflow generated when the flue gas flows pushes the turbine to rotate, and the stirring rod rotates in the device body through the connection of the rotating shaft, so that the temperature difference of the internal water source is reduced, and the uniform effect of the temperature of the water source after waste heat absorption is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structural schematic view of the flue gas pipe waste heat recovery device of the diesel generator is provided in the device.

[0016] Figure 2 A turbine top view sectional structure schematic view of the flue gas pipe waste heat recovery device of the diesel generator is provided in the device.

[0017] Figure 3 A side view sectional structure schematic view of the flue gas pipe waste heat recovery device of the diesel generator is provided in the device.

[0018] Figure 4 A front view sectional structure schematic view of the flue gas pipe waste heat recovery device of the diesel generator is provided in the device.

[0019] In the figure: 1, device main body; 2, smoke inlet pipe; 3, purification device; 4, turbine box; 5, turbine; 6, spiral smoke exhaust pipe; 7, water inlet pipe; 8, water outlet pipe; 9, valve; 10, rotating shaft; 11, stirring rod; 12, pressure relief valve; 13, thermometer; 14, heat preservation layer; 15, sealing sleeve; 16, connecting rod; 17, through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] Referring to Figures 1-4 A kind of exhaust pipe waste heat recovery device of diesel generator, including device main body 1, the side outer wall of device main body 1 is connected with smoke inlet pipe 2, and purification device 3 is arranged on smoke inlet pipe 2, turbine box 4 is arranged in device main body 1, smoke inlet pipe 2 is communicated with turbine box 4, and turbine 5 is rotatably connected in turbine box 4, spiral smoke exhaust pipe 6 is arranged in device main body 1, one end of spiral smoke exhaust pipe 6 is communicated with turbine box 4, and the other end extends to the outside of device main body 1, water inlet pipe 7 is arranged on the top of device main body 1, water outlet pipe 8 is arranged on the bottom, and valve 9 is arranged on water outlet pipe 8 and water inlet pipe 7, rotating shaft 10 is rotatably connected in the top of turbine box 4, the bottom of rotating shaft 10 is connected on the center of turbine 5, and the outer wall of rotating shaft 10 is connected with several stirring rods 11, and the several stirring rods 11 are uniformly arranged in circumferential shape axially.

[0022] The purification device 3 includes a diesel oxidation catalyst, a diesel particulate filter and a selective catalytic reduction. The diesel oxidation catalyst first oxidizes CO and HC, and simultaneously increases the temperature of the flue gas, thereby creating better working conditions for the diesel particulate filter and the selective catalytic reduction. The diesel particulate filter captures particulate matter and reduces PM emissions. The selective catalytic reduction treats NOx and further reduces nitrogen oxide emissions. The combination of the three can significantly reduce the pollutant emissions of the diesel engine.

[0023] The flue gas in the exhaust pipe is recovered through the smoke inlet pipe 2, and the flue gas is purified through the purification device 3. After the flue gas spirally flows in the spiral smoke exhaust pipe 6, it is discharged to the outside. The clean water source in the device main body 1 exchanges heat with the flue gas, increases the temperature of the water source, and increases the travel distance of the flue gas discharged from the spiral smoke exhaust pipe 6, thereby improving the heat exchange efficiency. Compared with the prior art, the waste heat recovery efficiency is improved. The airflow generated when the flue gas flows pushes the turbine 5 to rotate. Through the connection of the rotating shaft 10, the stirring rod 11 rotates in the device main body 1, thereby reducing the temperature difference of the internal water source and improving the uniformity of the temperature of the water source after absorbing waste heat.

[0024] Specifically, in the embodiment, the device body 1 is provided with a pressure relief valve 12 to eliminate the air pressure generated in the device body 1 due to the temperature rise of the water source.

[0025] Specifically, in the embodiment, the device body 1 is provided with a thermometer 13 to facilitate observation of the real-time change of the temperature of the water source in the device body 1.

[0026] Specifically, in the embodiment, the device body 1 is provided with a heat preservation layer 14 on the outer wall to improve the heat preservation effect of the device body 1 and improve the waste heat recovery efficiency.

[0027] Specifically, in the embodiment, the top end of the turbine box 4 is provided with a sealing sleeve 15, and the bottom shaft body of the rotating shaft 10 is arranged in the sealing sleeve 15 to prevent the flue gas from leaking from the turbine box 4 into the device body 1.

[0028] Specifically, in the embodiment, a connecting rod 16 is arranged between the same side and the same direction of the stirring rods 11 to improve the overall strength between the axial stirring rods 11.

[0029] Specifically, in the embodiment, the connecting rod 16 and the stirring rods 11 are both provided with through holes 17 to reduce the resistance of the stirring rods 11 and the connecting rod 16 in the circumferential stirring of the water source.

[0030] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An exhaust heat recovery device for a diesel generator exhaust pipe, comprising a device main body (1), characterized in that: The side outer wall of the device body (1) is connected with the smoke inlet pipe (2), and the smoke inlet pipe (2) is provided with the purification device (3); the device body (1) is provided with the turbine box (4), the smoke inlet pipe (2) communicates with the turbine box (4), the turbine box (4) is rotationally connected with the turbine (5), the device body (1) is provided with the spiral smoke exhaust pipe (6), one end of the spiral smoke exhaust pipe (6) communicates with the turbine box (4), and the other end extends to the outside of the device body (1); the top end of the device body (1) is provided with the water inlet pipe (7), the bottom end is provided with the water outlet pipe (8), the water outlet pipe (8) and the water inlet pipe (7) are provided with the valve (9), the top end of the turbine box (4) is rotationally connected with the rotating shaft (10), the bottom end of the rotating shaft (10) is connected to the center of the turbine (5), the outer wall of the rotating shaft (10) is connected with the plurality of stirring rods (11), and the plurality of stirring rods (11) are uniformly arranged in the circumferential direction.

2. A device for recovering exhaust heat from a diesel engine exhaust pipe according to claim 1, characterized in that: The device body (1) is provided with the pressure relief valve (12).

3. A device for recovering exhaust heat from a diesel engine exhaust pipe according to claim 1, characterized in that: The device body (1) is provided with the thermometer (13).

4. A device for recovering exhaust heat from a diesel engine exhaust pipe according to claim 1, characterized in that: The outer wall of the device body (1) is provided with the heat preservation layer (14).

5. A device for recovering exhaust heat from a diesel engine exhaust pipe according to claim 1, characterized in that: The top end of the turbine box (4) is provided with the sealing sleeve (15), and the bottom shaft body of the rotating shaft (10) is arranged in the sealing sleeve (15).

6. A device for recovering exhaust heat from a diesel engine exhaust pipe according to claim 1, characterized in that: The same connecting rod (16) is arranged between the plurality of stirring rods (11) arranged on the same side in the axial direction.

7. A device according to claim 6, characterised in that: The connecting rod (16) and the plurality of stirring rods (11) are provided with the through hole (17).

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