A waste heat recovery system for molding machine operation and mold processing

By designing a waste heat recovery and utilization system during the molding machine and mold processing, and using components such as water source heat pumps and high-temperature water storage tanks, the problem of direct emission of high-temperature steam and water vapor is solved, the recovery and utilization of heat and water resources is achieved, and the utilization efficiency of energy and water resources is improved.

CN115923019BActive Publication Date: 2025-10-10杭州欧宸科技有限公司
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Patent Information

Application Number
CN202211395440.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-09
Publication Date
2025-10-10
Estimated Expiration
2042-11-09

AI Technical Summary

Technical Problem

The high-temperature steam discharged by the existing molding machine during operation and the high-temperature steam generated when the mold is cooled are directly discharged to the outside, and the heat and water resources cannot be recycled.

Method used

A waste heat recovery and utilization system is designed. The mold cooling equipment and molding machine operating equipment are connected by pipes. Utilizing components such as a water source heat pump and a high-temperature water storage tank, high-temperature steam and water vapor are recovered and recycled for heating and dehumidification in the baking room.

Benefits of technology

It realizes the heat recovery and utilization of high-temperature steam and water vapor, reduces energy supply, saves water resources, and improves energy utilization efficiency and water resource recycling rate.

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Abstract

The present application relates to the technical field of waste heat recycling during mold processing and manufacturing, and discloses a waste heat recycling system during working of a molding machine and mold processing, which comprises a mold cooling device and a molding machine operation device, a first pipeline is fixedly connected to a water outlet of the mold cooling device, and a second pipeline is fixedly connected to a water outlet of the molding machine operation device; the waste heat recycling system during working of the molding machine and mold processing is provided with the first pipeline, the second pipeline, a third pipeline, a cooling water pool, a fourth pipeline, a first water pump, a water source heat pump, a fifth pipeline, a high-temperature water storage tank, a sixth pipeline, a second water pump, a baking room, a radiator and a dehumidifier, can recycle high-temperature steam in the two devices, transport the high-temperature steam to the baking room, utilize the heat of the high-temperature steam, reduce energy supply, liquefy water vapor for repeated use, and save water resources.
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Description

Technical Field

[0001] The present invention relates to the technical field of waste heat recovery during mold manufacturing, and in particular to a waste heat recovery system during molding machine operation and mold processing. Background Art

[0002] At present, the foam molding machine will heat the mold with high-temperature steam when it is working. The high-temperature steam will be discharged to the outside after heating the mold. In the mold cooling stage, the vacuum atomization cooling method is adopted. Atomized water is sprayed onto the mold surface in the vacuum chamber. After absorbing heat, the water droplets can quickly vaporize to produce high-temperature water vapor. After the mold is cooled, the water vapor is discharged to the outside.

[0003] The existing technology has the following defects and deficiencies:

[0004] At present, the high-temperature water vapor discharged when the molding machine is working and the high-temperature water vapor generated when the mold is cooled are directly discharged into the outside, and the heat and water resources cannot be recovered and utilized in other processing links. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a waste heat recovery and utilization system during the operation of a molding machine and mold processing, which can solve the problems of the existing waste heat recovery and utilization system during the operation of a molding machine and mold processing; this device is equipped with a heat energy and water resource recovery and utilization device, which effectively solves the problem that high-temperature steam of existing equipment is discharged to the outside and cannot be utilized during operation.

[0006] In order to achieve the purpose of the above-mentioned waste heat recovery and utilization system during the operation of a molding machine and mold processing, the present invention provides the following technical solutions: A waste heat recovery and utilization system during the operation of a molding machine and mold processing, comprising a mold cooling device and a molding machine operating device, wherein the water outlet of the mold cooling device is fixedly connected to a first pipe, the water outlet of the molding machine operating device is fixedly connected to a second pipe, one end of the first pipe and the second pipe are both fixedly connected to a third pipe, the cooling water in the mold cooling device forms high-temperature steam and enters the first pipe, and the high-temperature steam in the molding machine operating device enters the second pipe after use. In the pipeline, one end of the third pipeline is fixedly connected to the cooling water pool, a fourth pipeline is provided on one side of the cooling water pool, one end of the fourth pipeline is fixedly connected to the water source heat pump, one side of the water source heat pump is fixedly connected to the fifth pipeline, one end of the fifth pipeline is provided with a high-temperature water storage tank, one side of the high-temperature water storage tank is fixedly connected to the second water pump, one end of the second water pump is fixedly connected to the sixth pipeline, a baking room is provided on one side of the high-temperature water storage tank, a radiator is fixedly connected to the inner wall of the baking room, a dehumidifier is provided inside the baking room, and one end of the sixth pipeline is fixedly connected to the water inlet of the radiator.

[0007] Preferably, one side of the mold cooling device is provided with a water supplement port, and one side of the molding machine operating device is provided with a steam inlet port.

[0008] Preferably, one side of the cooling water pool is provided with a first water pump, one end of the fourth pipeline is fixedly connected with one end of the first water pump, and one end of the fourth pipeline is fixedly connected with a primary side water inlet of the water source heat pump.

[0009] Preferably, one end of the fifth pipeline is fixedly connected with a secondary side water outlet of the water source heat pump, and the other end of the fifth pipeline is fixedly connected with a water inlet of the high-temperature water storage tank.

[0010] Preferably, one side of the cooling water pool is fixedly connected with a seventh pipeline, and one end of the seventh pipeline is fixedly connected with a primary side water outlet of the water source heat pump.

[0011] Preferably, a third water pump is fixedly connected with the secondary side water inlet of the water source heat pump, one end of the third water pump is fixedly connected with an eighth pipeline, and one end of the eighth pipeline is fixedly connected with one side of the high-temperature water storage tank.

[0012] Preferably, a ninth pipeline is fixedly connected with one side of the high-temperature water storage tank, and one end of the ninth pipeline is fixedly connected with a water outlet of the radiator.

[0013] Preferably, a tenth pipeline is fixedly connected with a water outlet of the dehumidifier, and one end of the tenth pipeline is fixedly connected with one side of the cooling water pool.

[0014] Compared with the prior art, the present application provides a waste heat recycling system for molding machine operation and mold processing, which has the following beneficial effects:

[0015] 1. A waste heat recovery and utilization system during the operation of a molding machine and mold processing is provided with a first pipeline, a second pipeline, a third pipeline, a cooling water pool, a fourth pipeline, a first water pump, a water source heat pump, a fifth pipeline, a high-temperature water storage tank, a sixth pipeline, a second water pump, a baking room, a radiator and a dehumidifier. When in use, cooling water is poured into the mold cooling device through the water supply port to cool the mold, and high-temperature steam is poured into the mold through the steam inlet port to heat and shape the mold. The cooling water in the mold cooling device forms high-temperature steam and enters the first pipeline, and the high-temperature steam in the molding machine operation equipment enters the second pipeline after use. The water vapor in the first pipeline and the second pipeline enters the cooling water pool through the third pipeline, and the water vapor can be liquefied and stored in the cooling water pool. Then, the warm water is pumped by the first water pump and sent to the primary side water inlet of the water source heat pump through the fourth pipeline. After the warm water is cooled by the water source heat pump through heat exchange, it returns to the cooling water pool through the seventh pipeline, and the high-temperature water in the water source heat pump flows from the fifth pipeline into the high-temperature water storage tank for storage. The hot water with a lower temperature in the water tank will be pumped by the third water pump and sent to the secondary water inlet of the water source heat pump through the eighth pipe for heat exchange. After the hot water is heated, it will flow back to the high-temperature water tank through the fifth pipe. When the water temperature in the high-temperature water tank meets the heating requirement, the second water pump will be started. The second water pump will send the high-temperature hot water to the radiators in each baking room through the sixth pipe. The radiators will exchange heat to increase the temperature in the baking room and bake the items in the baking room. After heat exchange through the radiator, the high-temperature hot water will cool down. After cooling, the hot water will flow back to the high-temperature water tank through the ninth pipe. , reciprocating cycle. During baking, the objects being baked will be affected by the temperature and will discharge their own moisture into the air. At this time, the dehumidifier can perform dehumidification to reduce the humidity in the baking room, and the dehumidifier will flow the inhaled moisture into the cooling water pool through the tenth pipe for water circulation. This device can recover the high-temperature steam in the two devices and transport the heat energy to the baking room, so that the heat of the high-temperature steam can be utilized, reducing energy supply, and can also liquefy the water vapor for reuse, saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a flow chart of high-temperature steam flowing into a cooling water pool according to the present invention;

[0017] Figure 2 This is a flow chart of utilizing high-temperature water flow in the present invention.

[0018] In the figure: 1. Mold cooling equipment; 2. Molding machine operating equipment; 3. Water supply port; 4. Steam inlet port; 5. First pipeline; 6. Second pipeline; 7. Third pipeline; 8. Cooling water pool; 9. Fourth pipeline; 10. First water pump; 11. Water source heat pump; 12. Fifth pipeline; 13. High-temperature water storage tank; 14. Sixth pipeline; 15. Second water pump; 16. Baking room; 17. Radiator; 18. Dehumidifier; 19. Seventh pipeline; 20. Eighth pipeline; 21. Third water pump; 22. Ninth pipeline; 23. Tenth pipeline. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-2 A waste heat recovery and utilization system during the operation of a molding machine and mold processing includes a mold cooling device 1 and a molding machine operating device 2. A first pipe 5 is fixedly connected to the water outlet of the mold cooling device 1, and a second pipe 6 is fixedly connected to the water outlet of the molding machine operating device 2. One end of the first pipe 5 and the second pipe 6 are both fixedly connected to a third pipe 7. The cooling water in the mold cooling device 1 turns into high-temperature steam and enters the first pipe 5. The high-temperature steam in the molding machine operating device 2 enters the second pipe 6 after use. One end of the third pipe 7 is fixedly connected to a cooling water pool 8. The cooling water pool 8 A fourth pipe 9 is provided on one side of the , one end of the fourth pipe 9 is fixedly connected to a water source heat pump 11, one side of the water source heat pump 11 is fixedly connected to a fifth pipe 12, one end of the fifth pipe 12 is provided with a high-temperature water tank 13, one side of the high-temperature water tank 13 is fixedly connected to a second water pump 15, one end of the second water pump 15 is fixedly connected to a sixth pipe 14, a baking room 16 is provided on one side of the high-temperature water tank 13, the inner side wall of the baking room 16 is fixedly connected to a radiator 17, a dehumidifier 18 is provided inside the baking room 16, and one end of the sixth pipe 14 is fixedly connected to the water inlet of the radiator 17.

[0021] In summary, the mold cooling device 1 is provided with a water supplement port 3 on one side, which is used to supplement cooling water at the beginning of work. The molding machine operating device 2 is provided with a steam inlet port 4 on one side, through which high-temperature steam enters to heat the mold. The cooling water tank 8 is provided with a first water pump 10 on one side. One end of the fourth pipeline 9 is fixedly connected to one end of the first water pump 10. One end of the fourth pipeline 9 is fixedly connected to the primary side water inlet of the water source heat pump 11. The first water pump 10 pumps the water flow in the cooling water tank 8 to the water source heat pump 11 through the fourth pipeline 9. One end of the fifth pipeline 12 is fixedly connected to the secondary side water outlet of the water source heat pump 11. The other end of the fifth pipeline 12 is fixedly connected to the water inlet of the high-temperature water storage tank 13. The heated water flow in the water source heat pump 11 flows into the high-temperature water storage tank 13 through the fifth pipeline 12 for storage. The cooling water tank 8 is fixedly connected with a seventh pipeline 19 on one side. One end of the seventh pipeline 19 is fixedly connected to the primary side water outlet of the water source heat pump 11. The warm water is cooled by the water source heat pump 11 and then flows back to the cooling water tank 8 through the seventh pipeline 19 for circulation. The secondary side water inlet of the water source heat pump 11 is fixedly connected with a third water pump 21. One end of the third water pump 21 is fixedly connected with an eighth pipeline 20. One end of the eighth pipeline 20 is fixedly connected to one side of the high-temperature water storage tank 13. The lower-temperature hot water in the high-temperature water storage tank 13 is pumped by the third water pump 21, sent to the secondary side water inlet of the water source heat pump 11 through the eighth pipeline 20 for heat exchange, and then flows back to the high-temperature water storage tank 13 through the fifth pipeline 12 after being heated. One side of the high-temperature water storage tank 13 is fixedly connected with a ninth pipeline 22. One end of the ninth pipeline 22 is fixedly connected to the water outlet of the radiator 17. The high-temperature hot water is cooled by the radiator 17, and then flows back to the high-temperature water storage tank 13 through the ninth pipeline 22 after being cooled. The water outlet of the dehumidifier 18 is fixedly connected with a tenth pipeline 23. One end of the tenth pipeline 23 is fixedly connected to one side of the cooling water tank 8. The water flow in the dehumidifier 18 can flow into the cooling water tank 8 through the tenth pipeline 23.

[0022] The working process and installation method of the present invention are as follows: when in use, cooling water is poured into the mold cooling device 1 through the water supply port 3 to cool the mold, and high-temperature steam is poured into the mold through the steam inlet port 4 to heat the mold. Among them, the cooling water in the mold cooling device 1 forms high-temperature steam and enters the first pipe 5, and the high-temperature steam in the molding machine operation equipment 2 enters the second pipe 6 after use. The water vapor in the first pipe 5 and the second pipe 6 enters the cooling water pool 8 through the third pipe 7. The cooling water pool 8 can liquefy the water vapor and store it. Then the warm water is pumped by the first water pump 10 and sent to the primary water inlet of the water source heat pump 11 through the fourth pipe 9. After the warm water is cooled by the water source heat pump 11 through the seventh pipe 19, it flows back to the cooling water pool 8. The high-temperature water in the water source heat pump 11 flows from the fifth pipe 12 into the high-temperature water storage tank 13 for storage. The hot water with a lower temperature in the high-temperature water storage tank 13 will be pumped by the third water pump 21 and sent to the secondary water inlet of the water source heat pump 11 through the eighth pipe 20 for exchange. After the hot water is heated, it flows back to the high-temperature water storage tank 13 through the fifth pipe 12. When the water temperature in the high-temperature water storage tank 13 reaches the heating requirement, the second water pump 15 is started. The second water pump 15 sends the high-temperature hot water to the radiators 17 in each baking room 16 through the sixth pipe 14. The radiator 17 exchanges heat to increase the temperature in the baking room 16 to bake the items in the baking room 16. After the heat exchange in the radiator 17, the high-temperature hot water cools down. After cooling, the hot water flows back to the high-temperature water storage tank 13 through the ninth pipe 22, and the cycle repeats. When baking, The objects being baked will be affected by the temperature and will discharge their own moisture into the air. At this time, the dehumidifier 18 can perform dehumidification to reduce the humidity in the baking room 16, and the dehumidifier 18 will flow the absorbed moisture into the cooling water pool 8 through the tenth pipe 23 for water circulation. This device can recover the high-temperature steam in the two devices and transport the heat energy to the baking room 16, so that the heat of the high-temperature steam can be utilized, reducing energy supply, and can also liquefy the water vapor for reuse, saving water resources.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A waste heat recovery system for molding machine operation and mold processing, characterized by: The invention comprises a mold cooling device (1) and a molding machine operation device (2), wherein a first pipe (5) is fixedly connected to the water outlet of the mold cooling device (1), a second pipe (6) is fixedly connected to the water outlet of the molding machine operation device (2), one end of each of the first pipe (5) and the second pipe (6) is fixedly connected to a third pipe (7), cooling water in the mold cooling device (1) forms high-temperature steam and enters the first pipe (5), and high-temperature steam in the molding machine operation device (2) enters the second pipe (6) after use, one end of the third pipe (7) is fixedly connected to a cooling water pool (8), a fourth pipe (9) is provided on one side of the cooling water pool (8), and the third pipe (7) is fixedly connected to the cooling water pool (8). One end of the four pipes (9) is fixedly connected to a water source heat pump (11), one side of the water source heat pump (11) is fixedly connected to a fifth pipe (12), one end of the fifth pipe (12) is provided with a high-temperature water storage tank (13), one side of the high-temperature water storage tank (13) is fixedly connected to a second water pump (15), one end of the second water pump (15) is fixedly connected to a sixth pipe (14), one side of the high-temperature water storage tank (13) is provided with a baking room (16), the inner side wall of the baking room (16) is fixedly connected to a radiator (17), a dehumidifier (18) is provided inside the baking room (16), and one end of the sixth pipe (14) is fixedly connected to the water inlet of the radiator (17).

2. The waste heat recovery system during molding machine operation and mold processing according to claim 1 is characterized in that: A water supply port (3) is provided on one side of the mold cooling device (1), and a steam inlet port (4) is provided on one side of the molding machine operation device (2).

3. The waste heat recovery system during molding machine operation and mold processing according to claim 1 is characterized in that: A first water pump (10) is provided on one side of the cooling water pool (8), one end of the fourth pipe (9) is fixedly connected to one end of the first water pump (10), and one end of the fourth pipe (9) is fixedly connected to the primary side water inlet of the water source heat pump (11).

4. The waste heat recovery system during molding machine operation and mold processing according to claim 1 is characterized in that: One end of the fifth pipe (12) is fixedly connected to the secondary water outlet of the water source heat pump (11), and the other end of the fifth pipe (12) is fixedly connected to the water inlet of the high-temperature water storage tank (13).

5. The waste heat recovery and utilization system during molding machine operation and mold processing according to claim 1 is characterized in that: A seventh pipe (19) is fixedly connected to one side of the cooling water pool (8), and one end of the seventh pipe (19) is fixedly connected to the primary side water outlet of the water source heat pump (11).

6. The waste heat recovery system during molding machine operation and mold processing according to claim 1 is characterized in that: A third water pump (21) is fixedly connected to the secondary water inlet of the water source heat pump (11), one end of the third water pump (21) is fixedly connected to an eighth pipe (20), and one end of the eighth pipe (20) is fixedly connected to one side of the high-temperature water storage tank (13).

7. The waste heat recovery system during molding machine operation and mold processing according to claim 1 is characterized in that: A ninth pipe (22) is fixedly connected to one side of the high-temperature water storage tank (13), and one end of the ninth pipe (22) is fixedly connected to the water outlet of the radiator (17).

8. The waste heat recovery and utilization system during molding machine operation and mold processing according to claim 1 is characterized in that: A tenth pipe (23) is fixedly connected to the water outlet of the dehumidifier (18), and one end of the tenth pipe (23) is fixedly connected to one side of the cooling water pool (8).

Citation Information

Patent Citations

  • Waste heat recovery system for semiautomatic forming machine

    CN203510582U

  • System for reducing energy consumption of drying room by using waste heat of forming machine

    CN214562420U