High-temperature forging waste heat recycling device
By designing a waste heat recovery device for high-temperature forgings, the first fan is used to extract the high-temperature gas in the forging room and recover heat energy through the heat exchange parts, the problem of the inability to utilize the high-temperature waste heat in the forging plant is solved, and the effective utilization of heat energy and rapid cooling of the forging room is achieved.
Patent Information
- Application Number
- CN202420354778.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-02-27
AI Technical Summary
The high-temperature waste heat generated by forging plants during the production of forgings cannot be effectively utilized, resulting in waste of heat energy.
A waste heat recovery device for high-temperature forgings is designed, and the high-temperature gas in the forging chamber is extracted through the first fan, and heat exchange components (including superheater, steam turbine generator, condenser and water pump) are used to recover heat energy. Finally, the cooled gas is discharged into the forging chamber through the second fan, achieving rapid cooling and thermal energy utilization.
It effectively utilizes the high-temperature waste heat generated during forging production, reduces resource waste, and reduces the internal temperature of the forging chamber through rapid cooling.
Smart Images
Figure CN222688140U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat recovery, in particular to a device for recovering waste heat from high-temperature forgings. Background Art
[0002] When forging is carried out in a forging factory, the temperature inside the forging equipment is usually relatively high. After the forging is completed, the forging equipment is generally allowed to cool naturally. This part of the heat cannot be utilized, resulting in a waste of heat energy. Therefore, those skilled in the art provide a high-temperature forging waste heat recovery device to solve the problems raised in the above background technology. Utility Model Content
[0003] The purpose of the utility model is to provide a device for recovering waste heat from high-temperature forgings to solve the problems raised in the above-mentioned background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A device for recovering waste heat from high-temperature forgings comprises a forging chamber, wherein an exhaust port of the forging chamber is connected to a first fan via a pipeline, a first valve is installed on the pipeline between the forging chamber and the first fan, an air inlet of the forging chamber is connected to a second fan via a pipeline, an input end of the second fan is connected to a return air pipeline, a surface of the return air pipeline is connected to an external exhaust pipeline, a third valve is arranged on the surface of the return air pipeline between the external exhaust pipeline and the second fan, a second valve is arranged on the surface of the external exhaust pipeline, and a heat exchange component is arranged between the output end of the first fan and the return air pipeline.
[0006] As a further solution of the utility model: the heat exchange component includes a superheater, a steam turbine generator, a condenser and a water pump, the output end of the first fan is connected to the superheater through a pipeline, the superheater is connected to the steam turbine generator, the steam turbine generator is connected to the condenser, the liquid outlet end of the condenser is connected to the water pump, the water pump is connected to the liquid inlet end of the superheater, and the gas outlet end of the condenser is connected to the return air pipeline.
[0007] As a further solution of the utility model: the heat exchange component also includes a gas-liquid heat exchanger, and the gas-liquid heat exchanger is installed between the condenser and the steam turbine generator.
[0008] As a further solution of the utility model: the heat exchange component is an air-to-air heat exchanger, and two ends of the air-to-air heat exchanger are respectively connected to the output end of the first fan and the return air duct.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] By setting up the heat exchange component, the high-temperature gas inside the forging chamber can be extracted through the first fan and utilized, so as to use the heat energy as much as possible and reduce the waste of resources. Finally, the cooled gas is discharged into the interior of the forging chamber through the second fan. After the operation inside the forging chamber is stopped, the interior of the forging chamber can be quickly cooled, thereby realizing the rational utilization of the cooling gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic structural diagram of a first embodiment of a high-temperature forging waste heat recovery and utilization device;
[0012] Figure 2 It is a schematic structural diagram of a second embodiment of a high-temperature forging waste heat recovery and utilization device;
[0013] Figure 3 The figure is a schematic structural diagram of a third embodiment of a high-temperature forging waste heat recovery device.
[0014] In the figure: 1. forging chamber; 2. first valve; 3. first fan; 4. superheater; 5. steam turbine generator; 6. condenser; 7. water pump; 8. second valve; 9. third valve; 10. second fan; 11. air-to-air heat exchanger; 12. air-to-liquid heat exchanger; 13. return air duct; 14. external exhaust duct. DETAILED DESCRIPTION
[0015] See also Figures 1 to 3 A high-temperature forging waste heat recovery device includes a forging chamber 1, an exhaust port of the forging chamber 1 is connected to a first fan 3 through a pipeline, a first valve 2 is installed on the pipeline between the forging chamber 1 and the first fan 3, an air inlet of the forging chamber 1 is connected to a second fan 10 through a pipeline, an input end of the second fan 10 is connected to a return air pipeline 13, and a heat exchange component is arranged between the output end of the first fan 3 and the return air pipeline 13.
[0016] In the first embodiment, the heat exchange component includes a superheater 4, a steam turbine generator 5, a condenser 6 and a water pump 7. The output end of the first fan 3 is connected to the superheater 4 through a pipeline, the superheater 4 is connected to the steam turbine generator 5, the steam turbine generator 5 is connected to the condenser 6, the liquid outlet end of the condenser 6 is connected to the water pump 7, the water pump 7 is connected to the liquid inlet end of the superheater 4, the gas outlet end of the condenser 6 is connected to the return air pipe 13, the other end of the return air pipe 13 is connected to the input end of the second fan 10, the surface of the return air pipe 13 is connected to the external exhaust pipe 14, the surface of the return air pipe 13 located between the external exhaust pipe 14 and the second fan 10 is provided with a third valve 9, and the surface of the external exhaust pipe 14 is provided with a second valve 8.
[0017] When the temperature inside the forging chamber 1 is too high and needs to be discharged, hot air is introduced into the superheater 4 through the first fan 3 to form water vapor in the superheater 4, and the water vapor is further heated from the saturation temperature to the superheating temperature by the superheater 4, and then electricity is generated through the steam turbine generator 5. The water-gas mixture is then directly separated through the condenser 6, and the water is re-introduced into the superheater 4 through the water pump 7 for recycling. The gas passes through the return air pipe 13 and can be discharged when the third valve 9 is closed and the second valve 8 is opened, or it can be sucked into the interior of the forging chamber 1 through the second fan 10 when the second valve 8 is closed and the third valve 9 is opened, so as to quickly cool the forging chamber 1.
[0018] In the second embodiment, the difference from the first embodiment is that the heat exchange component is an air-to-air heat exchanger 11, both ends of the air-to-air heat exchanger 11 are respectively connected to the output end of the first fan 3 and the return air duct 13, and the rest of the parts are the same as above.
[0019] For a smaller forging chamber 1 or when there are fewer forgings in the forging chamber 1, the hot gas in the forging chamber 1 can be directly extracted and transported to the air-to-air heat exchanger 11 for heat exchange through the air-to-air heat exchanger 11. The gas after heat exchange can be directly discharged to the outside or introduced into the forging chamber 1 for rapid cooling of the forging chamber 1.
[0020] In the third embodiment, what is different from the first embodiment is that a gas-liquid heat exchanger 12 is newly added to the heat exchange component. The gas-liquid heat exchanger 12 is installed between the condenser 6 and the steam turbine generator 5. The rest of the parts are the same as the first embodiment.
[0021] When the temperature inside the forging chamber 1 is too high and needs to be discharged, hot air is introduced into the superheater 4 through the first fan 3 to form water vapor in the superheater 4. The superheater 4 is used to further heat the water vapor from the saturation temperature to the superheat temperature, and then electricity is generated through the steam turbine generator 5. The discharged water vapor containing waste heat passes through the gas-liquid heat exchanger 12 for secondary utilization of heat, such as indoor heating. After secondary utilization, the water-gas mixture is separated by the condenser 6, and the water is re-introduced into the superheater 4 through the water pump 7 for recycling. The gas passes through the return air pipe 13 and can be discharged when the third valve 9 is closed and the second valve 8 is opened, or it can be sucked into the interior of the forging chamber 1 through the second fan 10 when the second valve 8 is closed and the third valve 9 is opened, so as to quickly cool the forging chamber 1.
[0022] The working principle of the utility model is: by setting up a heat exchange component, the high-temperature gas inside the forging chamber 1 can be extracted and utilized through the first fan 3, so as to use the heat energy as much as possible and reduce the waste of resources, and the finally cooled gas is discharged into the interior of the forging chamber 1 through the second fan 10, so that the interior of the forging chamber 1 can be quickly cooled after the operation inside the forging chamber 1 is stopped.
[0023] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A high-temperature forging waste heat recovery device, comprising a forging chamber (1), characterized in that: The exhaust port of the forging chamber (1) is connected to a first fan (3) via a pipeline, the pipeline between the forging chamber (1) and the first fan (3) is provided with a first valve (2), the air inlet of the forging chamber (1) is connected to a second fan (10) via a pipeline, the input end of the second fan (10) is connected to a return air pipeline (13), the surface of the return air pipeline (13) is connected to an external exhaust pipeline (14), a third valve (9) is provided on the surface of the return air pipeline (13) between the external exhaust pipeline (14) and the second fan (10), a second valve (8) is provided on the surface of the external exhaust pipeline (14), and a heat exchange component is provided between the output end of the first fan (3) and the return air pipeline (13).
2. The high temperature forging waste heat recovery device according to claim 1 is characterized in that: The heat exchange component comprises a superheater (4), a steam turbine generator (5), a condenser (6) and a water pump (7); the output end of the first fan (3) is connected to the superheater (4) through a pipeline; the superheater (4) is connected to the steam turbine generator (5); the steam turbine generator (5) is connected to the condenser (6); the liquid outlet end of the condenser (6) is connected to the water pump (7); the water pump (7) is connected to the liquid inlet end of the superheater (4); and the gas outlet end of the condenser (6) is connected to the return gas pipeline (13).
3. The high temperature forging waste heat recovery device according to claim 2 is characterized in that: The heat exchange component further comprises a gas-liquid heat exchanger (12), wherein the gas-liquid heat exchanger (12) is installed between the condenser (6) and the steam turbine generator (5).
4. The high temperature forging waste heat recovery device according to claim 1, characterized in that: The heat exchange component is an air-to-air heat exchanger (11), and two ends of the air-to-air heat exchanger (11) are respectively connected to the output end of the first fan (3) and the return air duct (13).