Steam flue gas heat energy recycling device
By designing a steam flue gas heat energy reuse device, using a heat exchange exhaust hood and a combined heat exchange unit, the problems of low heat energy recovery efficiency and poor adaptability in the prior art are solved, and high efficiency of steam and exhaust gas thermal energy is achieved Recycling and utilization.
Patent Information
- Application Number
- CN202420126133.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The existing steam and exhaust gas heat energy recovery devices have a single structure and insufficient heat exchange area, resulting in low heat recovery and poor adaptability, and the thermal energy in steam and exhaust gas cannot be effectively utilized.
A steam flue gas thermal energy reuse device is designed, using a heat exchange and exhaust hood, cold water inlet pipe, air inlet hood, hot water drain pipe and a combined heat exchange unit, including hollow heat exchange gas plate and air inlet Branch pipes, hot gas exhaust branch pipes and S-type heat exchange water pipes realize the recycling of heat energy through these components, and improve the heat exchange efficiency through air guide plates and thermal fins.
Improve the efficiency of heat recovery, realize the efficient utilization of heat energy in steam or flue gas, can heat cold water and clean air at the same time, improve the utilization rate of heat energy, and ensure the discharge of condensate water by setting the condensate water collection chamber. .
Smart Images
Figure CN222336159U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heat energy recovery, in particular to a steam and flue gas heat energy recovery device. Background Art
[0002] The steam or waste gas discharged from steam boilers, incinerators and chemical plants contains a large amount of thermal energy, so the thermal energy in the steam and waste gas needs to be recovered and utilized. However, the thermal energy recovery device currently used for steam and waste gas has a relatively simple structure and cannot increase the heat exchange area. The heat recovery rate is low, resulting in a large amount of thermal energy waste, which is not conducive to energy conservation and environmental protection. Moreover, the existing thermal energy recovery devices are relatively limited in use. The thermal energy in steam and waste gas needs to be recovered and utilized by different recovery devices, and the adaptability is poor. Therefore, the present application proposes a steam flue gas thermal energy recovery device. Utility Model Content
[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a steam and flue gas heat energy recovery device, which effectively solves the problems of low recovery rate and poor adaptability of the existing heat energy recovery devices.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steam flue gas heat energy recovery device, comprising a heat exchange exhaust hood, one end of the heat exchange exhaust hood is fixedly provided with a hot air inlet pipe, the other end of the heat exchange exhaust hood is fixedly provided with a hot air exhaust pipe, a cold water inlet pipe and a cold air inlet hood are respectively inserted at one end of the back side of the heat exchange exhaust hood close to the hot air exhaust pipe, a hot water drain pipe and a hot air exhaust hood are respectively inserted at one end of the front side of the heat exchange exhaust hood close to the hot air inlet pipe, a heat exchange mechanism connected to the cold water inlet pipe, the cold air inlet hood, the hot water drain pipe and the hot air exhaust hood are fixedly provided inside the heat exchange exhaust hood, and the heat exchange mechanism is composed of a plurality of combined heat exchange units.
[0005] Preferably, the combined heat exchange unit is composed of a hollow heat exchange air guide plate, a plurality of cold air inlet branch pipes, a plurality of hot air exhaust branch pipes and an S-shaped heat exchange water guide pipe. The cold air inlet branch pipe and the hot air exhaust branch pipe are both inserted into the hollow heat exchange air guide plate and connected thereto. The other end of the cold air inlet branch pipe is fixedly connected to the cold air inlet hood, and the other end of the hot air exhaust branch pipe is fixedly connected to the hot air exhaust hood. The S-shaped heat exchange water guide pipe is welded to one side of the hollow heat exchange air guide plate, and the two ends of the S-shaped heat exchange water guide pipe are respectively fixedly connected to the cold water inlet pipe and the hot water drain pipe.
[0006] Preferably, the vertical cross-section of the hollow heat exchange air guide plate is an S-shaped structure, and both ends of the hollow heat exchange air guide plate are provided with a plurality of installation through holes matching the cold air intake branch pipe and the hot air exhaust branch pipe.
[0007] Preferably, a plurality of air guide plates 1 and a plurality of air guide plates 2 are fixedly arranged on both sides of the interior of the hollow heat exchange air guide plate, the air guide plates 1 and the air guide plates 2 are both inclined structures, the air guide plates 1 and the air guide plates 2 are alternately arranged, and a plurality of heat conducting fins 1 are fixedly arranged on the hollow heat exchange air guide plate.
[0008] Preferably, a plurality of heat-conducting fins 2 are fixedly provided on the side of the S-shaped heat-exchange water conduit, a conical hollow guide sleeve is fixedly provided inside the S-shaped heat-exchange water conduit, a plurality of cold water guide plates are fixedly provided inside the conical hollow guide sleeve, and the cold water guide plates are inclined structures.
[0009] Preferably, a condensate collecting bin is fixedly provided at the middle position of the bottom end of the heat exchange exhaust hood, a condensate drain pipe is fixedly provided at the bottom end of the condensate collecting bin, a valve is provided on the condensate drain pipe, and a hose is provided at the bottom end of the condensate drain pipe.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] (1) During operation, the heat exchange unit is provided with a heat exchange exhaust hood, a cold water inlet pipe, a cold air inlet hood, a hot water drain pipe, a hot air exhaust hood, and a combined heat exchange unit consisting of a hollow heat exchange air guide plate, a plurality of cold air inlet branch pipes, a plurality of hot air exhaust branch pipes, and an S-shaped heat exchange water guide pipe, so that the heat energy in the steam or flue gas can be recovered and utilized, and the cold water and clean air can be heated simultaneously by using the heat energy, thereby improving the heat energy recovery efficiency;
[0012] (2) By providing air guide plate 1 and air guide plate 2, clean air can be guided, the uniformity of clean air heating can be improved, and the heat exchange efficiency can be improved. By providing a conical hollow guide sleeve and a cold water guide plate, cold water can be guided, the uniformity of cold water heating and the heating area can be improved, and the heat exchange efficiency can be improved. By providing a condensate collection tank, a condensate drain pipe, a valve and a hose, the condensate generated can be discharged when recovering steam heat energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0014] In the attached picture:
[0015] Figure 1 This is a schematic diagram of the structure of the steam and flue gas heat energy recovery device of the utility model;
[0016] Figure 2 This is a schematic diagram of the heat exchange mechanism structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the combined heat exchange unit of the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the hollow heat exchange air guide plate of the utility model;
[0019] Figure 5 This is a top sectional view of the hollow heat exchange air guide plate of the utility model;
[0020] Figure 6 This is a partial cross-sectional view of the S-shaped heat exchange water pipe of the utility model;
[0021] In the figure: 1. heat exchange exhaust hood; 2. hot air inlet pipe; 3. hot air exhaust pipe; 4. cold water inlet pipe; 5. cold air inlet hood; 6. hot water drain pipe; 7. hot air exhaust hood; 8. heat exchange mechanism; 9. combined heat exchange unit; 10. hollow heat exchange air guide plate; 11. cold air inlet branch pipe; 12. hot air exhaust branch pipe; 13. S-type heat exchange water guide pipe; 14. installation through hole; 15. air guide plate one; 16. air guide plate two; 17. heat transfer fin one; 18. heat transfer fin two; 19. conical hollow guide sleeve; 20. cold water guide plate; 21. condensate collection tank; 22. condensate drain pipe; 23. valve; 24. hose. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with 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 of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0023] Depend on Figure 1 and Figure 2 The utility model provides a steam flue gas heat energy recovery device, comprising a heat exchange exhaust hood 1, one end of the heat exchange exhaust hood 1 is fixedly provided with a hot air inlet pipe 2, the other end of the heat exchange exhaust hood 1 is fixedly provided with a hot air exhaust pipe 3, a cold water inlet pipe 4 and a cold air inlet hood 5 are respectively inserted at one end of the back of the heat exchange exhaust hood 1 close to the hot air exhaust pipe 3, a hot water drain pipe 6 and a hot air exhaust hood 7 are inserted at one end of the front of the heat exchange exhaust hood 1 close to the hot air inlet pipe 2, a heat exchange mechanism 8 connected with the cold water inlet pipe 4, the cold air inlet hood 5, the hot water drain pipe 6 and the hot air exhaust hood 7 is fixedly provided inside the heat exchange exhaust hood 1, and the heat exchange mechanism 8 is composed of a plurality of combined heat exchange units 9;
[0024] When in use, steam or smoke enters the interior of the heat exchange exhaust hood 1 through the hot gas intake pipe 2, and the heat energy is recycled through the heat exchange mechanism 8 to avoid wasting heat energy and improve the utilization rate of heat energy. Then, the steam or smoke is discharged through the hot gas exhaust pipe 3.
[0025] Depend on Figures 1 to 6 It is given that the combined heat exchange unit 9 is composed of a hollow heat exchange air guide plate 10, a plurality of cold air intake branch pipes 11, a plurality of hot air exhaust branch pipes 12 and an S-shaped heat exchange water guide pipe 13. The cold air intake branch pipe 11 and the hot air exhaust branch pipe 12 are both inserted into the hollow heat exchange air guide plate 10 and connected thereto. The other end of the cold air intake branch pipe 11 is fixedly connected to the cold air intake cover 5, and the other end of the hot air exhaust branch pipe 12 is fixedly connected to the hot air exhaust cover 7. The S-shaped heat exchange water guide pipe 13 is welded to one side of the hollow heat exchange air guide plate 10. The two ends of the S-shaped heat exchange water guide pipe 13 are respectively fixedly connected to the cold water inlet pipe 4 and the hot water drain pipe 6. The vertical section of the hollow heat exchange air guide plate 10 is an S-shaped structure. Both ends of the hollow heat exchange air guide plate 10 are provided with a plurality of mounting through holes 14 matching the cold air intake branch pipe 11 and the hot air exhaust branch pipe 12.
[0026] Cold water enters the S-shaped heat exchange water pipe 13 through the cold water inlet pipe 4, and heat exchange is achieved through the S-shaped heat exchange water pipe 13. The S-shaped heat exchange water pipe 13 is heated by steam or exhaust gas, thereby heating the cold water. The heated hot water is discharged through the hot water drain pipe 6. Cold air enters the interior of multiple cold air intake branches 11 through the cold air intake hood 5, and then enters the interior of multiple hollow heat exchange air guide plates 10. Heat exchange is achieved through the hollow heat exchange air guide plates 10. The hollow heat exchange air guide plates 10 are heated by steam or exhaust gas, thereby heating the air. The heated air is discharged through the hot air exhaust branch pipe 12 and the hot air exhaust hood 7. The heated air can be used for boiler intake.
[0027] Depend on Figures 3 to 6 It is given that a plurality of air guide plates 15 and a plurality of air guide plates 2 16 are fixedly arranged on both sides of the interior of the hollow heat exchange air guide plate 10, and both the air guide plates 15 and the air guide plates 2 16 are inclined structures, and the air guide plates 15 and the air guide plates 2 16 are alternately arranged, and a plurality of heat conduction fins 17 are fixedly arranged on the hollow heat exchange air guide plate 10, and a plurality of heat conduction fins 2 18 are fixedly arranged on the side of the S-shaped heat exchange water guide pipe 13, and a conical hollow guide sleeve 19 is fixedly arranged inside the S-shaped heat exchange water guide pipe 13, and a plurality of cold water guide plates 20 are fixedly arranged inside the conical hollow guide sleeve 19, and the cold water guide plates 20 are inclined structures;
[0028] The air guide plate 15 and the air guide plate 2 16 are used to guide the air inside the hollow heat exchange air guide plate 10, extend the flow path, and increase the heating area. The heat conduction fin 17 can improve the heat conduction efficiency of the hollow heat exchange air guide plate 10. The conical hollow guide sleeve 19 and the cold water guide plate 20 can turbulently control the cold water, improve the uniformity of the cold water heating, and thus improve the heating efficiency.
[0029] Depend on Figure 1 It is given that a condensate collecting tank 21 is fixedly provided at the middle position of the bottom end of the heat exchange exhaust hood 1, a condensate drain pipe 22 is fixedly provided at the bottom end of the condensate collecting tank 21, a valve 23 is provided on the condensate drain pipe 22, and a hose 24 is provided at the bottom end of the condensate drain pipe 22;
[0030] If the steam heat energy is recycled, condensed water will be generated in the recycling process. The condensed water is temporarily stored in the condensed water collection tank 21 and then discharged through the condensed water drain pipe 22 and the hose 24.
[0031] During operation, by providing a heat exchange exhaust hood, a cold water inlet pipe, a cold air inlet hood, a hot water drain pipe, a hot air exhaust hood and a combined heat exchange unit composed of a hollow heat exchange air guide plate, a plurality of cold air inlet branch pipes, a plurality of hot air exhaust branch pipes and an S-shaped heat exchange water guide pipe, it is possible to recover and utilize the heat energy in the steam or flue gas, and to utilize the heat energy to heat the cold water and the clean air at the same time, thereby improving the heat energy recovery efficiency; by providing an air guide plate one and an air guide plate two, it is possible to guide the clean air, improve the uniformity of heating the clean air, and thus improve the heat exchange efficiency; by providing a conical hollow guide sleeve and a cold water guide plate, it is possible to guide the cold water, improve the uniformity and heating area of the cold water, and thus improve the heat exchange efficiency; by providing a condensate collection tank, a condensate drain pipe, a valve and a hose, the condensate generated can be discharged when recovering the steam heat energy.
Claims
1. A steam flue gas heat energy recovery device, comprising a heat exchange exhaust hood (1), characterized in that: A hot air inlet pipe (2) is fixedly provided at one end of the heat exchange exhaust hood (1), and a hot air exhaust pipe (3) is fixedly provided at the other end of the heat exchange exhaust hood (1); a cold water inlet pipe (4) and a cold air inlet hood (5) are respectively inserted through one end of the back side of the heat exchange exhaust hood (1) close to the hot air exhaust pipe (3); a hot water drain pipe (6) and a hot air exhaust hood (7) are inserted through one end of the front side of the heat exchange exhaust hood (1) close to the hot air inlet pipe (2); a heat exchange mechanism (8) connected to the cold water inlet pipe (4), the cold air inlet hood (5), the hot water drain pipe (6) and the hot air exhaust hood (7) is fixedly provided inside the heat exchange exhaust hood (1); the heat exchange mechanism (8) is composed of a plurality of combined heat exchange units (9).
2. The steam and flue gas heat energy recovery device according to claim 1 is characterized in that: The combined heat exchange unit (9) is composed of a hollow heat exchange air guide plate (10), a plurality of cold air intake branch pipes (11), a plurality of hot air exhaust branch pipes (12) and an S-shaped heat exchange water guide pipe (13). The cold air intake branch pipe (11) and the hot air exhaust branch pipe (12) are both inserted into the hollow heat exchange air guide plate (10) and are connected thereto. The other end of the cold air intake branch pipe (11) is fixedly connected to the cold air intake cover (5), and the other end of the hot air exhaust branch pipe (12) is fixedly connected to the hot air exhaust cover (7). The S-shaped heat exchange water guide pipe (13) is welded to one side of the hollow heat exchange air guide plate (10), and the two ends of the S-shaped heat exchange water guide pipe (13) are respectively fixedly connected to the cold water inlet pipe (4) and the hot water drain pipe (6).
3. The steam and flue gas heat energy recovery device according to claim 2 is characterized in that: The vertical cross-section of the hollow heat exchange air guide plate (10) is an S-shaped structure, and both ends of the hollow heat exchange air guide plate (10) are provided with a plurality of mounting through holes (14) matching the cold air intake branch pipe (11) and the hot air exhaust branch pipe (12).
4. The steam and flue gas heat energy recovery device according to claim 2 is characterized in that: A plurality of air guide plates one (15) and a plurality of air guide plates two (16) are fixedly arranged on both sides of the interior of the hollow heat exchange air guide plate (10), the air guide plates one (15) and the air guide plates two (16) are both inclined structures, the air guide plates one (15) and the air guide plates two (16) are alternately arranged, and a plurality of heat conduction fins one (17) are fixedly arranged on the hollow heat exchange air guide plate (10).
5. The steam and flue gas heat energy recovery device according to claim 2 is characterized in that: A plurality of heat-conducting fins (18) are fixedly arranged on the side of the S-shaped heat-exchange water-conducting pipe (13), a conical hollow flow guide sleeve (19) is fixedly arranged inside the S-shaped heat-exchange water-conducting pipe (13), and a plurality of cold water flow guide plates (20) are fixedly arranged inside the conical hollow flow guide sleeve (19), and the cold water flow guide plates (20) are of an inclined structure.
6. The steam and flue gas heat energy recovery device according to claim 1, characterized in that: A condensate collection bin (21) is fixedly disposed at the middle position of the bottom end of the heat exchange exhaust hood (1), a condensate drainage pipe (22) is fixedly disposed at the bottom end of the condensate collection bin (21), a valve (23) is disposed on the condensate drainage pipe (22), and a hose (24) is disposed at the bottom end of the condensate drainage pipe (22).