Steam waste heat recovery device for industrial energy conservation

Abstract

The utility model belongs to the field of industrial energy conservation, particularly relates to a steam waste heat recovery device for industrial energy conservation, and provides the following scheme aiming at the problems that the existing water fluidity is poor and the heat exchange effect is influenced: the steam waste heat recovery device comprises a heat exchange tank, the heat exchange assembly comprises an air inlet pipe, a main industrial energy-saving steam waste heat recovery spiral pipe, a connecting pipe, an auxiliary industrial energy-saving steam waste heat recovery spiral pipe and an air outlet pipe, a stirring plate can be driven to rotate, and the stirring plate can drive water in the heat exchange tank to flow; water absorbing heat around the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe is taken away in time, and the flowing speed of the water around the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe is increased; and more low-temperature water is in contact with the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe, so that the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial energy saving, in particular to a steam waste heat recovery device for industrial energy saving. Background Art

[0002] During the operation of industrial equipment, a large amount of steam is often generated. This steam needs to be recovered using a steam waste heat recovery device. Chinese patent document publication number: CN113280652A discloses a steam waste heat recovery system for industrial energy saving.

[0003] However, the above technical solution only uses a serpentine tube for heating. The fluidity of water around the serpentine tube is poor, and after being heated, it is not possible to replace it with lower temperature water in time, which affects the heat absorption effect of the steam inside the serpentine tube. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that water fluidity is poor and the heat exchange effect is affected, and to propose a steam waste heat recovery device for industrial energy saving.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A steam waste heat recovery device for industrial energy saving, comprising

[0007] heat exchange tank;

[0008] The heat exchange component includes an air inlet pipe, a main industrial energy-saving steam waste heat recovery spiral pipe, a connecting pipe, a secondary industrial energy-saving steam waste heat recovery spiral pipe and an air outlet pipe. One end of the air inlet pipe is located inside the heat exchange tank and is connected to the air inlet end of the main industrial energy-saving steam waste heat recovery spiral pipe. The air outlet end of the main industrial energy-saving steam waste heat recovery spiral pipe is connected to the top end of the connecting pipe. The bottom end of the connecting pipe is connected to the air inlet end of the secondary industrial energy-saving steam waste heat recovery spiral pipe. The air outlet end of the secondary industrial energy-saving steam waste heat recovery spiral pipe is connected to the air inlet end of the air outlet pipe.

[0009] A water pump connected to the bottom end of the heat exchange tank surface;

[0010] A water pipe is connected to the water outlet of the water pump, and the top of the water pipe is connected to the top of the heat exchange tank;

[0011] A rotating shaft is rotatably sleeved inside the heat exchange tank;

[0012] A stirring plate, the stirring plate being bolted to the surface of the rotating shaft;

[0013] The power mechanism is connected to the rotating shaft. The power mechanism is used to drive the stirring plate to rotate. The stirring plate can be driven to rotate through the transmission of the structure. The stirring plate can drive the water inside the heat exchange tank to flow, and promptly take away the water that has absorbed heat around the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe, accelerate the flow speed of water around the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe, allow more low-temperature water to contact the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe, and improve the heat exchange efficiency.

[0014] As a preferred solution of the present utility model, the power mechanism includes an electric push rod, a rack, a pinion and a sprocket assembly. The output end of the electric push rod is bolted to one end of the rack, the teeth of the rack are engaged with the teeth of the pinion, and the pinion is key-connected to the sprocket assembly. When the power supply of the electric push rod is turned on, the electric push rod is controlled by a controller, and the output end of the electric push rod continuously extends and retracts. The electric push rod can drive the rack to move back and forth, and the rack can drive the pinion to rotate.

[0015] As a preferred solution of the present invention, the sprocket assembly includes a main sprocket, a chain and a secondary sprocket. The bottom of the pinion is connected to the top key of the main sprocket, the teeth of the main sprocket are engaged with the inner side of the chain, the inner side of the chain is engaged with the teeth of the secondary sprocket, and the axis of the secondary sprocket is connected to the top key of the rotating shaft. The pinion can drive the main sprocket to rotate, the main sprocket can drive the chain to rotate, and the chain can drive the secondary sprocket to rotate. The size of the main sprocket is larger than that of the secondary sprocket, which can produce an acceleration effect on the secondary sprocket, and the secondary sprocket can drive the rotating shaft to rotate.

[0016] As an optimal solution of the present invention, the surface of the electric push rod is connected to the top bolt of the heat exchange tank, the axis of the main sprocket is rotatably connected to the top of the heat exchange tank, the electric push rod is fixed by the heat exchange tank, and the electric push rod drives the rack to move. The main sprocket is rotatably arranged with the heat exchange tank through a bearing to ensure the stability of the main sprocket rotation.

[0017] As a preferred solution of the present invention, the top and bottom of the left side of the heat exchange tank are connected by through pipes, and a flange is integrally processed on the end of the through pipe away from the heat exchange tank. The top through pipe is used to inject hot water, and the bottom through pipe is used to extract and replace the hot water inside the heat exchange tank. The flange facilitates the connection of the through pipes.

[0018] As a preferred solution of the present invention, the surface of the air inlet pipe is welded to the hole on the right side of the heat exchange tank, the surface of the air outlet pipe is welded to the hole at the bottom end of the right side of the heat exchange tank, the surfaces of the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe are connected to the internal bolts of the heat exchange tank, and a complete sealing structure is adopted between the air inlet pipe and the air outlet pipe and the heat exchange tank to avoid penetration. The main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe can be fixed to the heat exchange tank using a cross bar, thereby avoiding the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe from falling. Beneficial effects

[0019] 1. The power mechanism can drive the rotating shaft to rotate, and the rotating shaft can drive the stirring plate to rotate. The stirring plate can stir the hot water inside the heat exchange tank, and replace the water around the main industrial energy-saving steam waste heat recovery spiral tube and the auxiliary industrial energy-saving steam waste heat recovery spiral tube in time, so as to achieve faster heat exchange;

[0020] 2. The water pump extracts the water at the bottom of the heat exchange tank and then pumps it into the water pipe. The water pipe transports the water at the bottom to the top of the heat exchange tank, forming a top-down flow trend inside the heat exchange tank.

[0021] In the utility model: the transmission of the structure can drive the stirring plate to rotate, and the stirring plate can drive the water inside the heat exchange tank to flow, and promptly take away the water that has absorbed heat around the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe, accelerate the flow speed of water around the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe, allow more low-temperature water to contact the main industrial energy-saving steam waste heat recovery spiral pipe and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe, and improve the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0023] Figure 2 This is a three-dimensional diagram of the stirring plate of the present invention;

[0024] Figure 3 This is a three-dimensional diagram of the main industrial energy-saving steam waste heat recovery spiral pipe of the utility model;

[0025] Figure 4 This is a three-dimensional diagram of the heat exchange tank of the present utility model.

[0026] In the figure: 1. Heat exchange tank; 2. Air inlet pipe; 3. Main industrial energy-saving steam waste heat recovery spiral pipe; 4. Connecting pipe; 5. Auxiliary industrial energy-saving steam waste heat recovery spiral pipe; 6. Air outlet pipe; 7. Water pump; 8. Water pipe; 9. Electric push rod; 10. Rack; 11. Pinion; 12. Main sprocket; 13. Chain; 14. Auxiliary sprocket; 15. Rotating shaft; 16. Stirring plate; 17. Through pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0028] Reference Figure 1-Figure 4 , a steam waste heat recovery device for industrial energy saving, comprising

[0029] Heat exchange tank 1;

[0030] The heat exchange component includes an air inlet pipe 2, a main industrial energy-saving steam waste heat recovery spiral pipe 3, a connecting pipe 4, a secondary industrial energy-saving steam waste heat recovery spiral pipe 5 and an air outlet pipe 6. One end of the air inlet pipe 2 located inside the heat exchange tank 1 is connected to the air inlet end of the main industrial energy-saving steam waste heat recovery spiral pipe 3, the air outlet end of the main industrial energy-saving steam waste heat recovery spiral pipe 3 is connected to the top end of the connecting pipe 4, the bottom end of the connecting pipe 4 is connected to the air inlet end of the secondary industrial energy-saving steam waste heat recovery spiral pipe 5, and the air outlet end of the secondary industrial energy-saving steam waste heat recovery spiral pipe 5 is connected to the air inlet end of the air outlet pipe 6;

[0031] A water pump 7 is connected to the bottom end of the surface of the heat exchange tank 1;

[0032] A water pipe 8 is connected to the water outlet of the water pump 7, and the top of the water pipe 8 is connected to the top of the heat exchange tank 1;

[0033] The rotating shaft 15 is rotatably sleeved inside the heat exchange tank 1;

[0034] A stirring plate 16 , the stirring plate 16 is bolted to the surface of the rotating shaft 15 ;

[0035] The power mechanism is connected to the rotating shaft 15 and is used to drive the stirring plate 16 to rotate.

[0036] By means of the above structure: the transmission of the structure can drive the stirring plate 16 to rotate, and the stirring plate 16 can drive the water inside the heat exchange tank 1 to flow, and promptly take away the water that has absorbed heat around the main industrial energy-saving steam waste heat recovery spiral tube 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral tube 5, and accelerate the flow speed of water around the main industrial energy-saving steam waste heat recovery spiral tube 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral tube 5, so that more low-temperature water can contact the main industrial energy-saving steam waste heat recovery spiral tube 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral tube 5, thereby improving the heat exchange efficiency.

[0037] See also Figure 2 The power mechanism includes an electric push rod 9, a rack 10, a pinion 11 and a sprocket assembly. The output end of the electric push rod 9 is bolted to one end of the rack 10, the teeth of the rack 10 are engaged with the teeth of the pinion 11, and the pinion 11 is key-connected to the sprocket assembly. When the power of the electric push rod 9 is turned on, the electric push rod 9 is controlled by a controller. The output end of the electric push rod 9 is continuously extended and retracted. The electric push rod 9 can drive the rack 10 to move back and forth, the rack 10 can drive the pinion 11 to rotate, and the pinion 11 can drive the sprocket assembly to rotate.

[0038] See also Figure 2 The sprocket assembly includes a main sprocket 12, a chain 13 and a secondary sprocket 14. The bottom of the pinion 11 is key-connected to the top of the main sprocket 12, the teeth of the main sprocket 12 are meshed with the inner side of the chain 13, the inner side of the chain 13 is meshed with the teeth of the secondary sprocket 14, and the axis of the secondary sprocket 14 is key-connected to the top of the rotating shaft 15. The pinion 11 can drive the main sprocket 12 to rotate, the main sprocket 12 can drive the chain 13 to rotate, and the chain 13 can drive the secondary sprocket 14 to rotate. The size of the main sprocket 12 is larger than that of the secondary sprocket 14, which can produce an acceleration effect on the secondary sprocket 14, and the secondary sprocket 14 can drive the rotating shaft 15 to rotate.

[0039] See also Figure 1 The surface of the electric push rod 9 is connected to the top bolt of the heat exchange tank 1, and the axis of the main sprocket 12 is rotatably connected to the top of the heat exchange tank 1. The electric push rod 9 is fixed by the heat exchange tank 1, which makes it convenient for the electric push rod 9 to drive the rack 10 to move. The main sprocket 12 is rotatably set with the heat exchange tank 1 through the bearing to ensure the stability of the rotation of the main sprocket 12.

[0040] See also Figure 4 The top and bottom of the left side of the heat exchange tank 1 are connected by a through pipe 17. The end of the through pipe 17 away from the heat exchange tank 1 is integrally processed with a flange. The top through pipe 17 is used to inject hot water, and the bottom through pipe 17 is used to extract and replace the hot water inside the heat exchange tank 1. The flange facilitates the connection of the through pipe 17.

[0041] See also Figure 1The surface of the air inlet pipe 2 is welded to the hole on the right side of the heat exchange tank 1, and the surface of the air outlet pipe 6 is welded to the hole at the bottom end of the right side of the heat exchange tank 1. The surfaces of the main industrial energy-saving steam waste heat recovery spiral pipe 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe 5 are connected to the internal bolts of the heat exchange tank 1. The air inlet pipe 2 and the air outlet pipe 6 adopt a completely sealed structure with the heat exchange tank 1 to avoid penetration. The main industrial energy-saving steam waste heat recovery spiral pipe 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe 5 can be fixed to the heat exchange tank 1 using a cross bar, thereby avoiding the main industrial energy-saving steam waste heat recovery spiral pipe 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe 5 from falling. Example 2

[0042] The difference between this embodiment and embodiment 1 is that the electric push rod 9 and the rack 10 are replaced by a power motor, a screw rod keyed to the output end of the power motor, and a toothed plate threadedly connected to the surface of the screw rod. The power motor can drive the toothed plate to move through the screw rod, and the toothed plate can drive the pinion 11 to rotate. However, the power motor needs to be controlled back and forth, and the speed at which it drives the pinion 11 to rotate is slow. Therefore, the present application preferably uses the electric push rod 9 and the rack 10.

[0043] It should be noted that the specific types of water pump 7 and electric push rod 9 to be used are selected by relevant technical personnel familiar with this field, and the above water pump 7 and electric push rod 9 are all existing technologies and will not be elaborated in this solution.

[0044] The working principle of the utility model is as follows: the industrial steam source is connected to the air inlet pipe 2, the heat exchange water is injected into the heat exchange tank 1, the steam enters the main industrial energy-saving steam waste heat recovery spiral pipe 3 through the air inlet pipe 2, the steam rotates several times inside the main industrial energy-saving steam waste heat recovery spiral pipe 3 and then enters the connecting pipe 4, the connecting pipe 4 transports the steam to the auxiliary industrial energy-saving steam waste heat recovery spiral pipe 5, the auxiliary industrial energy-saving steam waste heat recovery spiral pipe 5 can transport the steam into the air outlet pipe 6, and then discharge it to the next equipment. In this process, the inside of the heat exchange tank 1 The water can absorb the internal steam through the main industrial energy-saving steam waste heat recovery spiral tube 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral tube 5, turn on the power of the electric push rod 9, the electric push rod 9 is controlled by a controller, and the output end of the electric push rod 9 continuously retracts and retracts, and the electric push rod 9 can drive the rack 10 to move back and forth, and the rack 10 can drive the pinion 11 to rotate, and the pinion 11 can drive the main sprocket 12 to rotate, and the main sprocket 12 can drive the chain 13 to rotate, and the chain 13 can drive the auxiliary sprocket 14 to rotate. The size of the main sprocket 12 The size of the secondary sprocket 14 is larger than that of the secondary sprocket 14, which can produce an acceleration effect on the secondary sprocket 14. The secondary sprocket 14 can drive the rotating shaft 15 to rotate, and the rotating shaft 15 can drive the stirring plate 16 to rotate. The stirring plate 16 can stir the hot water inside the heat exchange tank 1, and timely replace the water around the main industrial energy-saving steam waste heat recovery spiral tube 3 and the secondary industrial energy-saving steam waste heat recovery spiral tube 5, for faster heat exchange. The water pump 7 extracts the water at the bottom of the heat exchange tank 1 and then pumps it into the water pipe 8. The water pipe 8 transports the water at the bottom to the inside of the heat exchange tank 1. The top makes the inside of the heat exchange tank 1 form a top-down flow trend, and the stirring plate 16 can drive the water flow inside the heat exchange tank 1, and promptly take away the water that has absorbed heat around the main industrial energy-saving steam waste heat recovery spiral tube 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral tube 5, accelerate the flow speed of the water around the main industrial energy-saving steam waste heat recovery spiral tube 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral tube 5, and allow more low-temperature water to contact the main industrial energy-saving steam waste heat recovery spiral tube 3 and the auxiliary industrial energy-saving steam waste heat recovery spiral tube 5, thereby improving the heat exchange efficiency.

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steam waste heat recovery device for industrial energy saving, characterized in that: include Heat exchange tank (1); A heat exchange component, the heat exchange component comprises an air inlet pipe (2), a main industrial energy-saving steam waste heat recovery spiral pipe (3), a connecting pipe (4), a secondary industrial energy-saving steam waste heat recovery spiral pipe (5) and an air outlet pipe (6), wherein one end of the air inlet pipe (2) located inside the heat exchange tank (1) is connected to the air inlet end of the main industrial energy-saving steam waste heat recovery spiral pipe (3), the air outlet end of the main industrial energy-saving steam waste heat recovery spiral pipe (3) is connected to the top end of the connecting pipe (4), the bottom end of the connecting pipe (4) is connected to the air inlet end of the secondary industrial energy-saving steam waste heat recovery spiral pipe (5), and the air outlet end of the secondary industrial energy-saving steam waste heat recovery spiral pipe (5) is connected to the air inlet end of the air outlet pipe (6); A water pump (7), the water pump (7) is connected to the bottom end of the surface of the heat exchange tank (1); A water delivery pipe (8), the water delivery pipe (8) is connected to the water outlet of the water pump (7), and the top end of the water delivery pipe (8) is connected to the top of the heat exchange tank (1); A rotating shaft (15), the rotating shaft (15) is rotatably sleeved inside the heat exchange tank (1); A stirring plate (16), the stirring plate (16) is bolted to the surface of the rotating shaft (15); A power mechanism is connected to the rotating shaft (15), and the power mechanism is used to drive the stirring plate (16) to rotate.

2. The steam waste heat recovery device for industrial energy saving according to claim 1, characterized in that: The power mechanism comprises an electric push rod (9), a rack (10), a pinion (11) and a sprocket assembly, wherein the output end of the electric push rod (9) is bolted to one end of the rack (10), the teeth of the rack (10) are meshed with the teeth of the pinion (11), and the pinion (11) is key-connected to the sprocket assembly.

3. The steam waste heat recovery device for industrial energy saving according to claim 2, characterized in that: The sprocket assembly comprises a main sprocket (12), a chain (13) and a secondary sprocket (14); the bottom of the pinion (11) is key-connected to the top of the main sprocket (12); the teeth of the main sprocket (12) are meshed with the inner side of the chain (13); the inner side of the chain (13) is meshed with the teeth of the secondary sprocket (14); and the axis of the secondary sprocket (14) is key-connected to the top of the rotating shaft (15).

4. The steam waste heat recovery device for industrial energy saving according to claim 3 is characterized in that: The surface of the electric push rod (9) is connected to the top of the heat exchange tank (1) by bolts, and the axis of the main sprocket (12) is rotatably connected to the top of the heat exchange tank (1).

5. The steam waste heat recovery device for industrial energy saving according to claim 1, characterized in that: The top and bottom of the left side of the heat exchange tank (1) are both connected with a through pipe (17), and a flange is integrally processed on one end of the through pipe (17) away from the heat exchange tank (1).

6. The steam waste heat recovery device for industrial energy saving according to claim 1, characterized in that: The surface of the air inlet pipe (2) is welded to the hole on the right side of the heat exchange tank (1), the surface of the air outlet pipe (6) is welded to the hole at the bottom end of the right side of the heat exchange tank (1), and the surfaces of the main industrial energy-saving steam waste heat recovery spiral pipe (3) and the auxiliary industrial energy-saving steam waste heat recovery spiral pipe (5) are both connected to the internal bolts of the heat exchange tank (1).

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