TWI714222B - Press cycle system with heat recovery function - Google Patents

Abstract

This creation is a press cycle system with heat recovery function, including: heat exchanger, hot pressing system and cold pressing system. The heat exchanger can exchange heat energy between different pipes, hot pressing system and heat exchange. The cold press system is connected with the heat exchanger and is connected with the hot press system through the heat exchanger; in order to improve the heat waste problem of the existing press cycle system, this creation proposes a press cycle with heat recovery function The system is integrated into the cold pressing system, and can reuse the waste heat of the heat medium for hot pressing to raise the temperature of the cold pressing system, so that the heat energy can be used more effectively, and achieve the effect of improving the energy utilization efficiency of the press.

Description

Pressing machine circulation system with heat recovery function

This creation relates to a thermal cycle system of a press machine, especially a press cycle system that can reuse the heat medium used in the thermal press system.

The existing press cycle system is to process the processed material in the hot press in the heat press cycle system for high temperature (190℃~210℃) hot pressing. After the processed material is slightly cooled, the processed material is sent to a cold The cold press in the compression system performs low-temperature (about 80°C) compression and then cools; As shown in FIG. 2, the heating method of the existing press cycle system is to send the heat medium to the hot press cycle system 92 after being heated by a boiler, and then heat the hot press 921 to the working temperature for hot pressing. After the heat pressing is completed, the heat press 921 starts to cool down, and the heat medium is sent to the heat exchanger 91 and the heat medium (water) in the cooling system 93 for heat exchange, and then the heat medium (water) in the cooling system The temperature in the cooling water tower 931 is cooled, and then it is sent to the storage tank 932 for storage, and then recycled in the next process.

However, in the existing press cycle system, the residual temperature of the heat medium (water) when it enters the cooling system 93 is still high, and the heat medium still has a lot of heat energy that cannot be effectively used, so it must be cooled, resulting in a waste of energy; As mentioned, there is still room for improvement in the design of the existing press cycle system.

In order to improve the problem of heat waste in the existing press cycle system, this creation proposes a press cycle system with heat recovery function, which is integrated into the cold press system, and can use heat medium for hot press The waste heat is reused to raise the temperature of the cold press system, so that the heat energy can be used more effectively, and achieve the effect of improving the energy utilization efficiency of the press.

A press cycle system with heat recovery function, comprising: a heat exchanger, which can exchange heat energy between different pipelines, and is provided with a first output port, a first input port, and a second An output port and a second input port; a hot press system connected to the first output port and the first input port of the heat exchanger for conveying a first heat medium; and a cold press system connected to the The second output port and the second input port of the heat exchanger are connected, and the cold-pressing system is connected to the hot-pressing system through the heat exchanger for conveying a second heat medium. The heat medium raises the temperature of the second heat medium of the cold press system.

The cycle system of the press machine with heat recovery function includes an electroplating system connected with the pipeline between the heat exchanger and the cold press system.

The press cycle system with heat recovery function includes at least one heat storage device connected to the pipeline between the heat exchanger and the cold pressure system.

The efficiency gains obtained by the technical means of this creation are:

1. After the completion of the hot press, the heat of the heat medium will be exchanged to the cold press system and provided to the cold press system for heating, so that the heat energy of the heat medium can be reused before cooling to increase the energy of the press Use the efficiency of the effect.

2. This creation is equipped with electroplating equipment in the pipeline between the cold pressing system and the heat exchanger. After the cold pressing system completes the cold pressing of the processed materials, the waste heat energy of the heat medium is used to provide heat energy in the electroplating process. Need to achieve the effect of improving energy efficiency.

3. In this creation, a heat storage device is added to the pipeline between the cold pressing system and the heat exchanger. After the cold pressing operation of the cold pressing system or the electroplating process is completed, the waste heat energy of the heat medium is stored again The device is used for industrial use or civilian use to achieve the effect of improving energy utilization efficiency.

10: Heat exchanger

11: The first output port

12: The first input port

13: The second output port

14: The second input port

15, 16: Shunt node

17: Backflow control valve group

20: Hot pressing system

21: Hot press unit

30: Cold press system

31: Cold press unit

32: inlet valve group

33: Outlet valve group

40: Electroplating equipment

42: inlet valve group

43: outlet valve group

50: heat storage device

52: inlet valve group

53: Outlet valve group

60: Cooling system

61: inlet valve group

62: cooling tower

63: Reservoir

64: Outlet valve group

91: heat exchanger

92: Heat press circulation system

921: Hot Press

93: Cooling system

931: cooling tower

932: Reservoir

Figure 1 is a schematic diagram of a preferred embodiment of the creation.

Fig. 2 is a schematic diagram of the circulation system of the existing pressing machine.

In order to understand the technical features and practical effects of this creation in detail, and realize it in accordance with the creation content, the preferred embodiment shown in the figure is further used, and the detailed description is as follows: This creation provides a pressure recovery function with heat recovery. The combined machine circulation system, as shown in the preferred embodiment shown in FIG. 1, includes: a heat exchanger 10, a hot pressing system 20, a cold pressing system 30, an electroplating equipment 40, a heat storage device 50 and a cooling system 60 , The hot pressing system 20, the cold pressing system 30, the electroplating equipment 40, the heat storage device 50 and the cooling system 60 are all connected to the heat exchanger 10.

The heat exchanger 10 can exchange heat energy between different pipelines, and it includes a first output port 11, a first input port 12, a second output port 13, a second input port 14, and two branch nodes. 15, 16 and a reflux control valve group 17, the heat exchanger 10 can output the first heat medium for heat pressing from the first output port 11, and can receive the refluxed first heat from the first input port 12 The branch node 15 is connected to the second output port 13, the cold press system 30, the electroplating equipment 40, and the heat storage device 50. The branch node 16 is connected to the backflow control valve set 17 and is connected to the second input The port 14 is connected, and the branch node 16 is connected with the cold press system 30, the electroplating equipment 40, and the heat storage device 50. The backflow control valve group 17 can control the flow of the second heat medium to the second input port 14 or It is the cooling system 60. In this preferred embodiment, the second heat medium is water.

The cold press system 30 includes a cold press unit 31, an inlet valve group 32 and an outlet valve group 33. The inlet valve group 32 is connected to the branch node 15 and connected to the second output port 13, and the outlet valve group 33 is connected to the branch node 16 and communicates with the backflow control valve group 17.

After the heat pressing is completed, the first heat medium of the heat pressing system 20 enters the heat exchanger 10 from the first input port 12 to exchange heat energy to the second heat medium, and then the second heat medium that absorbs the waste heat from the first heat exchanger 10 The output from the second output port 13 enters the cold press system 30 through the inlet valve group 32 and raises the temperature of the cold press unit 31 to heat the cold press unit 31 to the working temperature, so that the cold press unit 31 performs cold compression , And the second heat medium can pass through the outlet valve group 33 and the return control valve group 17 and return to the heat exchanger 10 from the second input port 14.

Please refer to the right half of FIG. 1, the electroplating equipment 40 includes an inlet valve group 42 and an outlet valve group 43. The inlet valve group 42 is connected to the branch node 15 and connected to the second output port 13. The outlet valve The group 43 is connected to the branch node 16 and communicates with the backflow control valve group 17; the heat storage device 50 includes an inlet valve group 52 and an outlet valve group 53, the inlet valve group 52 is connected to the branch node 15 and is connected to The second output port 13 is connected, and the outlet valve group 53 is connected to the branch node 16 and connected to the backflow control valve group 17.

When the second heat medium is heating the cold press system 30, the two inlet valve groups 42, 52 and the two outlet valve groups 43, 53 are closed, so that the second heat medium cannot enter the electroplating equipment 40 and the heat storage device 50.

After the cold pressing work is completed, the inlet valve block 32 and the outlet valve block 33 will be closed so that the second heat medium will not enter the cold press system 30, and the inlet valve block 42 and the outlet valve block of the electroplating equipment 40 43 will be turned on to allow the second heat medium to enter the electroplating equipment 40, and the second heat medium is used to provide heat energy required for the electroplating process.

After finishing the work of the electroplating equipment 40, the inlet valve group 42 and the outlet valve group 43 will be closed, so that the second heat medium will not enter the electroplating equipment 40, and the inlet valve group 52 of the heat storage device 50 and the The outlet valve group 53 will be opened to allow the second heat medium to enter the heat storage device 50, use the second heat medium to heat water, and output the hot water for industrial use or civilian use.

The cooling system 60 sequentially includes an inlet valve group 61, a cooling water tower 62, a liquid storage tank 63, and an outlet valve group 64. The inlet valve group 61 communicates with the backflow control valve group 17, and the outlet valve group 64 Connect with the second input port 14.

When all the work of the system has been completed, or when the remaining heat energy of the second heat medium is insufficient to provide the equipment required, the second heat medium will flow into the inlet valve group 61 through the return control valve group 17 and be sent to The cooling water tower 62 is cooled, and after cooling is completed, it is sent to the liquid storage tank 63 for storage. After the next heating work of the hot pressing system 20 is completed, the second heat medium will be output from the outlet valve group 64 and pass through the first The second input port 14 returns to the heat exchanger 10 for a new working stroke.

In other implementation aspects of this creation, this creation can only provide one cold pressing system 30, and the cold pressing system 30 can reuse the waste heat of the first heat medium to improve the efficiency of heat energy use; or in other implementation aspects Also, only one cold pressing system 30 and one electroplating equipment 40, or one cold pressing system 30 and one heat storage device 50 are provided, and the configuration can be adjusted according to the usage.

After the hot pressing work of the hot pressing system 20 of this creation is completed, the second heat medium obtains the waste heat of the first heat medium through the heat exchanger 10, and then it will be sent to the cold pressing system 30 for the cold pressing system 30 Increase the temperature and reuse the heat energy to achieve the effect of improving energy utilization efficiency.

The electroplating equipment 40 is added between the cold pressing system 30 of the present invention and the heat exchanger 10. After the cold pressing system 30 completes the cold pressing of the processed material, the thermal energy of the second heat medium is used to provide the electroplating process. The heat energy required in the medium to achieve the effect of improving energy utilization efficiency.

The heat storage device 50 is added to the pipeline between the cold pressing system 30 and the heat exchanger 10 of the present invention. After the cold pressing operation or the electroplating process of the cold pressing system 30 is completed, the second heat medium The thermal energy is then used by the heat storage device 50 for industrial use or civilian use, so as to achieve the effect of improving energy utilization efficiency.

The above is only a preferred embodiment of this creation, and does not impose any formal restriction on this creation. Anyone with ordinary knowledge in the relevant technical field, if he does not deviate from the skills provided by this creation Within the scope of technical features, the equivalent embodiments that make partial changes or modifications using the technical content disclosed in this creation still fall within the scope of the technical features of this creation.

10: Heat exchanger

11: The first output port

12: The first input port

13: The second output port

14: The second input port

15, 16: Shunt node

17: Backflow control valve group

20: Hot pressing system

21: Hot press unit

30: Cold press system

31: Cold press unit

32: inlet valve group

33: Outlet valve group

40: Electroplating equipment

42: inlet valve group

43: outlet valve group

50: heat storage device

52: inlet valve group

53: Outlet valve group

60: Cooling system

61: inlet valve group

62: cooling tower

63: Reservoir

64: Outlet valve group

Claims (4)

A press cycle system with heat recovery function, comprising: a heat exchanger, which can exchange heat energy between different pipelines, and is provided with a first output port, a first input port, and a second An output port and a second input port; a hot press system connected to the first output port and the first input port of the heat exchanger for conveying a first heat medium; and a cold press system connected to the The second output port and the second input port of the heat exchanger are connected, and the cold-pressing system is connected to the hot-pressing system through the heat exchanger for conveying a second heat medium. The heat medium raises the temperature of the second heat medium of the cold press system. The press cycle system with heat recovery function as described in claim 1, which includes an electroplating system connected to the pipeline between the heat exchanger and the cold press system. The press cycle system with heat recovery function according to claim 2, which includes at least one heat storage device connected to the pipeline between the heat exchanger and the cold pressure system. The press cycle system with heat recovery function according to claim 1, which includes at least one heat storage device connected to the pipeline between the heat exchanger and the cold pressure system.

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