CN219283687U - Waste heat recovery and energy saving system of smoke factory based on heat pump - Google Patents
Waste heat recovery and energy saving system of smoke factory based on heat pump Download PDFInfo
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- CN219283687U CN219283687U CN202320768780.9U CN202320768780U CN219283687U CN 219283687 U CN219283687 U CN 219283687U CN 202320768780 U CN202320768780 U CN 202320768780U CN 219283687 U CN219283687 U CN 219283687U
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Abstract
The utility model provides a heat pump-based waste heat recovery and energy saving system for a smoke factory, which comprises: the heat pump unit, the first heat exchange unit, the second heat exchange unit, the waste heat exchange unit and the water collector. The hot end water outlet of the heat pump unit is respectively connected with the first heat exchange unit and the second heat exchange unit through hot water pipelines, and the hot end water inlet of the heat pump unit is connected with the return water output end of the waste heat exchange unit through a return water pipeline. The first heat exchange unit is connected with the office building heating system through a first pipeline so as to exchange heat. The second heat exchange unit is connected with the workshop power and heat supply system through a second pipeline so as to exchange heat. The waste heat exchange unit is used for carrying out waste heat recovery and heat exchange on the air compressor waste heat system and the boiler waste heat system. The heat pump unit is used for heating backwater conveyed by the water collector by utilizing heat generated by the heat pump. The utility model can improve the energy utilization rate of the smoke factory and realize energy conservation and emission reduction.
Description
Technical Field
The utility model relates to the technical field of energy conservation of a tobacco plant, in particular to a waste heat recovery energy-saving system of a tobacco plant based on a heat pump.
Background
The operation of the equipment in the existing cigarette factory can discharge a great amount of heat, and if the equipment is discharged into the air, great energy waste is easily caused. There are a large number of different types of recyclable energy in cigarette factories. In the production process, a large amount of high-temperature and high-humidity process exhaust air is discharged from workshop process equipment; the energy consumed by the air compressor is converted into heat in the working process and then is taken away by cooling water, and the heat of the cooling water is 75% of the input power of the air compressor; the steam condensate of air conditioning, heating and process equipment in the cigarette factory still contains about 25% of the steam heat. At present, waste heat of exhaust air, condensed water and waste heat of an air compressor in a cigarette factory are independently recovered, and the adopted condensed water recovery technology is generally to directly discharge secondary flash steam, so that a large amount of energy is wasted. Meanwhile, the range of the smoke factory is large in area, so that the heating energy demand in winter is large. Therefore, how to effectively utilize the waste heat of the equipment operation of the cigarette factory and provide heat energy for the office or the equipment operation so as to reduce the steam consumption and realize the purpose of energy conservation, and strives to realize the zero carbon emission of the cigarette factory in the early days, thereby having important significance.
Disclosure of Invention
The utility model provides a heat pump-based smoke factory waste heat recovery energy-saving system, which solves the problem of unreasonable waste heat utilization of equipment operation in the existing smoke factory, can improve the energy utilization rate of the smoke factory, and realizes energy conservation and emission reduction.
In order to achieve the above object, the present utility model provides the following technical solutions:
a heat pump-based waste heat recovery and energy conservation system for a tobacco plant, comprising: the system comprises a heat pump unit, a first heat exchange unit, a second heat exchange unit, a waste heat exchange unit and a water collector;
the hot end water outlet of the heat pump unit is respectively connected with the first heat exchanger unit and the second heat exchanger unit through hot water pipelines, and the hot end water inlet of the heat pump unit is connected with the backwater output end of the waste heat exchanger unit through a backwater pipeline;
the first heat exchange unit is connected with the office building heating system through a first pipeline so as to exchange heat;
the second heat exchange unit is connected with the workshop power heating system through a second pipeline so as to exchange heat;
the office building heating system and the workshop power heating system are connected with a water return port of the water collector through a water return pipeline, and a water outlet of the water collector is connected with a water return inlet end of the waste heat exchanger unit;
the waste heat exchange unit is also connected with the air compressor waste heat system and the boiler waste heat system through heat exchange pipelines respectively so as to perform waste heat recovery and heat exchange;
the heat pump unit is used for heating backwater conveyed by the water collector by utilizing heat generated by the heat pump.
Preferably, the method further comprises: a cooling tower;
the cold end water inlet of the heat pump unit is connected with a cooling water pipeline of the workshop air compressor, and the cold end water outlet of the heat pump unit is connected with the cooling tower to form heat pump cold end water circulation of the heat pump unit, so that cooling of cooling water of the workshop air compressor is completed.
Preferably, the method further comprises: a first water pump, a second water pump, and a third water pump;
the first water pump is arranged on the first pipeline to drive hot water in the first pipeline to circularly operate;
the second water pump is arranged on the second pipeline to drive hot water in the second pipeline to circularly operate;
the third water pump is arranged on the water return pipeline to drive the water return circulation operation in the water return pipeline.
Preferably, the waste heat exchange unit includes: the air pressure heat exchanger, the boiler heat exchanger, the first backwater communicating tank and the second backwater communicating tank;
the return water ends of the air pressure heat exchanger and the boiler heat exchanger are respectively connected with the first return water communicating tank and the second return water communicating tank;
the water outlet end of the first water return communication tank is used as a water return output end of the waste heat exchanger unit and is connected with a hot end water inlet of the heat pump unit;
the water inlet end of the second backwater communicating tank is used as a backwater water inlet end of the waste heat exchanger unit and is connected with the water outlet of the water collector.
Preferably, the first heat exchange unit includes: an office building heat exchanger and a first water separator;
the office building heat exchanger is connected with the first water separator through an office building circulation pipeline, and the first water separator is used for conveying circulating hot water into heating circulation pipelines in different offices.
Preferably, the second heat exchange unit includes: a plant heat exchanger and a second water separator;
the workshop heat exchanger is connected with the second water separator through a workshop circulation pipeline, and the second water separator is used for conveying circulating hot water into each heating circulation pipeline of the workshop.
Preferably, the office building heat exchanger and the shop heat exchanger are plate heat exchangers.
Preferably, the method further comprises: a regulating valve;
the first pipeline, the second pipeline and the water return pipeline are all provided with regulating valves so as to regulate the running water quantity.
The utility model provides a smoke factory waste heat recovery energy-saving system based on a heat pump, which adopts a waste heat exchanger unit to recover waste heat of an air compressor waste heat system and a boiler waste heat system, utilizes the heat pump to heat backwater conveyed by the waste heat exchanger unit, and respectively supplies heat to an office building and a workshop power heat supply system through a first heat exchanger unit and a second heat exchanger unit. The problem of the unreasonable waste heat utilization of the operation of current tobacco mill interior equipment is solved, the energy utilization of tobacco mill can be improved, energy saving and emission reduction are realized.
Drawings
In order to more clearly illustrate the specific embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described.
Fig. 1 is a schematic diagram of a heat pump-based waste heat recovery and energy saving system for a tobacco plant.
Fig. 2 is a schematic diagram of an energy-saving system for recovering waste heat of air pressure in a cigarette factory, which is provided by the embodiment of the utility model.
Detailed Description
In order to make the solution of the embodiment of the present utility model better understood by those skilled in the art, the embodiment of the present utility model is further described in detail below with reference to the accompanying drawings and embodiments.
Aiming at the problem that the waste heat utilization of the equipment in the current tobacco plant is unreasonable, the utility model provides a tobacco plant waste heat recovery energy-saving system based on a heat pump, which solves the problem that the waste heat utilization of the equipment in the current tobacco plant is unreasonable, can improve the energy utilization rate of the tobacco plant, and realizes energy conservation and emission reduction.
As shown in fig. 1, a heat pump-based waste heat recovery and energy saving system for a tobacco plant includes: the heat pump unit, the first heat exchange unit, the second heat exchange unit, the waste heat exchange unit and the water collector. The hot end water outlet of the heat pump unit is respectively connected with the first heat exchanger unit and the second heat exchanger unit through hot water pipelines, and the hot end water inlet of the heat pump unit is connected with the return water output end of the waste heat exchanger unit through a return water pipeline. The first heat exchange unit is connected with the office building heating system through a first pipeline so as to exchange heat. The second heat exchange unit is connected with the workshop power and heat supply system through a second pipeline so as to exchange heat. The office building heating system and the workshop power heating system are connected with a water return port of the water collector through a water return pipeline, and a water outlet of the water collector is connected with a water return inlet end of the waste heat exchanger unit. The waste heat exchange unit is also connected with the air compressor waste heat system and the boiler waste heat system through heat exchange pipelines respectively so as to perform waste heat recovery and heat exchange. The heat pump unit is used for heating backwater conveyed by the water collector by utilizing heat generated by the heat pump.
In practical application, the heat pump condensation heat is utilized to heat backwater of the waste heat exchanger unit, the waste heat exchanger unit exchanges heat with the air compressor waste heat system and the boiler waste heat system to perform waste heat recovery, the system can effectively utilize waste heat of the air compressor, low-grade waste heat of cooling water of the power center air compressor is converted into high-grade heat energy for an office building or a workshop power heating system, the heat exchange steam consumption of a hot plate is greatly reduced, the improvement of the heat recovery efficiency of the air compressor is facilitated, the efficiency loss of the air compressor is reduced, and the total heat recovery of the air compressor is basically realized.
The system further comprises: a cooling tower; the cold end water inlet of the heat pump unit is connected with a cooling water pipeline of the workshop air compressor, and the cold end water outlet of the heat pump unit is connected with the cooling tower to form heat pump cold end water circulation of the heat pump unit, so that cooling of cooling water of the workshop air compressor is completed.
In practical application, the cold end water inlet of the heat pump unit is connected with cooling water of the air compressor, and low-grade cooling water of the air compressor returns to the cooling tower after passing through the cold end water outlet of the heat pump. And (3) completing the cold end water circulation of the heat pump, namely utilizing the cold energy of the heat pump to cool the cooling water of the air compressor.
The system further comprises: the first water pump, the second water pump and the third water pump. The first water pump is arranged on the first pipeline to drive hot water in the first pipeline to circularly operate. The second water pump is arranged on the second pipeline to drive hot water in the second pipeline to circularly operate. The third water pump is arranged on the water return pipeline to drive the water return circulation operation in the water return pipeline.
Further, the waste heat exchange unit includes: the air pressure heat exchanger, the boiler heat exchanger, the first backwater communicating tank and the second backwater communicating tank. And the return water ends of the air pressure heat exchanger and the boiler heat exchanger are respectively connected with the first return water communicating tank and the second return water communicating tank. The water outlet end of the first water return communicating tank is used as a water return output end of the waste heat exchanger unit and is connected with a hot end water inlet of the heat pump unit. The water inlet end of the second backwater communicating tank is used as a backwater water inlet end of the waste heat exchanger unit and is connected with the water outlet of the water collector.
Further, the first heat exchange unit includes: an office building heat exchanger and a first water separator; the office building heat exchanger is connected with the first water separator through an office building circulation pipeline, and the first water separator is used for conveying circulating hot water into heating circulation pipelines in different offices.
Further, the second heat exchange unit includes: a plant heat exchanger and a second water separator; the workshop heat exchanger is connected with the second water separator through a workshop circulation pipeline, and the second water separator is used for conveying circulating hot water into each heating circulation pipeline of the workshop.
Further, the office building heat exchanger and the shop heat exchanger employ plate heat exchangers.
The system further comprises: a regulating valve; the first pipeline, the second pipeline and the water return pipeline are all provided with regulating valves so as to regulate the running water quantity.
In one embodiment, as shown in fig. 2, the energy-saving system for recovering air pressure waste heat of a cigarette factory based on a heat pump comprises a heat pump unit 1, a power plate exchanger 2, an office floor exchanger 3, a heat pump unit cold end water inlet 4, a heat pump unit cold end water outlet 5, a heat pump unit hot end water inlet 6, a heat pump unit hot end water outlet 7, a heat pump end water pump 8, a backwater communicating tank 9, a backwater communicating tank 10, an air pressure waste heat recovery plate exchanger 11, a boiler waste heat recovery plate exchanger 12, an air pressure waste heat recovery regulating valve 13, an office floor exchanger water pump 14, an office floor exchanger water separator 15, an office floor exchanger water collector 16, an office floor exchanger water return regulating valve 17, a power plate exchanger water pump 18, a power plate exchanger water separator 19, a power plate exchanger water collector 20 and a power plate exchanger water return regulating valve 21.
The energy-saving system mainly comprises a heat pump unit 1, a power plate exchanger 2 of a power center and an office floor exchanger 3, wherein a cold end water inlet 4 of the heat pump unit is connected with cooling water of an air compressor, and the cooling water returns to a cooling tower after passing through a cold end water outlet 5 of the heat pump unit. The hot end water inlet 6 of the heat pump unit is connected with a backwater communicating tank 9, the backwater communicating tank 9 is respectively connected with an air pressure waste heat recovery plate exchanger 11 and a boiler waste heat recovery plate exchanger 12, the hot end water outlet 7 of the heat pump unit is divided into two paths, one path is connected with an office floor slab backwater exchanging pump 14 front end, the other path is connected with a power plate backwater exchanging pump 18 front end. The hot water is sent to each user end from the water separator 15 and the water separator 19 after plate replacement, is summarized to the water collector 16 and the water collector 20 after use, and is led out from the water collector 16 and the water collector 20 to the backwater communicating tank 10 respectively, and is sent to the hot end water inlet 6 of the heat pump unit through the heat pump end water pump 8 after plate replacement by waste heat recovery. The backwater is heated by the pump heat principle of the heat pump, then is converged with backwater regulated by the backwater regulating valve 17 and the backwater regulating valve 21, and is pumped to the power plate exchanger 2 and the office floor exchanger 3 by the water pump 14 and the water pump 18 after being fully mixed, so that the water circulation at the hot end of the heat pump is completed, namely, the heat of the heat pump is utilized for heating part of backwater of the plate exchanger, thereby improving the backwater temperature and furthest reducing the heat consumption of the exchanger.
The utility model provides a smoke factory waste heat recovery energy-saving system based on a heat pump, which is characterized in that a waste heat exchange unit is used for recovering waste heat of an air compressor waste heat system and a boiler waste heat system, the heat pump is used for heating backwater conveyed by the waste heat exchange unit, and the first heat exchange unit and the second heat exchange unit are used for respectively supplying heat to a power heating system of an office building and a workshop. The problem of the unreasonable waste heat utilization of the operation of current tobacco mill interior equipment is solved, the energy utilization of tobacco mill can be improved, energy saving and emission reduction are realized.
While the construction, features and effects of the present utility model have been described in detail with reference to the illustrated embodiments, the above description is only the preferred embodiments of the present utility model, but the present utility model should not be limited to the embodiments shown in the drawings, and all changes made according to the concepts of the present utility model or modifications as equivalent embodiments shall fall within the scope of the present utility model without departing from the spirit covered by the specification and drawings.
Claims (8)
1. The utility model provides a smoke factory waste heat recovery economizer system based on heat pump which characterized in that includes: the system comprises a heat pump unit, a first heat exchange unit, a second heat exchange unit, a waste heat exchange unit and a water collector;
the hot end water outlet of the heat pump unit is respectively connected with the first heat exchanger unit and the second heat exchanger unit through hot water pipelines, and the hot end water inlet of the heat pump unit is connected with the backwater output end of the waste heat exchanger unit through a backwater pipeline;
the first heat exchange unit is connected with the office building heating system through a first pipeline so as to exchange heat;
the second heat exchange unit is connected with the workshop power heating system through a second pipeline so as to exchange heat;
the office building heating system and the workshop power heating system are connected with a water return port of the water collector through a water return pipeline, and a water outlet of the water collector is connected with a water return inlet end of the waste heat exchanger unit;
the waste heat exchange unit is also connected with the air compressor waste heat system and the boiler waste heat system through heat exchange pipelines respectively so as to perform waste heat recovery and heat exchange;
the heat pump unit is used for heating backwater conveyed by the water collector by utilizing heat generated by the heat pump.
2. The heat pump-based flue gas plant waste heat recovery and energy conservation system of claim 1, further comprising: a cooling tower;
the cold end water inlet of the heat pump unit is connected with a cooling water pipeline of the workshop air compressor, and the cold end water outlet of the heat pump unit is connected with the cooling tower to form heat pump cold end water circulation of the heat pump unit, so that cooling of cooling water of the workshop air compressor is completed.
3. The heat pump-based flue gas plant waste heat recovery and energy conservation system of claim 2, further comprising: a first water pump, a second water pump, and a third water pump;
the first water pump is arranged on the first pipeline to drive hot water in the first pipeline to circularly operate;
the second water pump is arranged on the second pipeline to drive hot water in the second pipeline to circularly operate;
the third water pump is arranged on the water return pipeline to drive the water return circulation operation in the water return pipeline.
4. A heat pump-based flue gas plant waste heat recovery and energy saving system according to claim 3, wherein the waste heat exchanger unit comprises: the air pressure heat exchanger, the boiler heat exchanger, the first backwater communicating tank and the second backwater communicating tank;
the return water ends of the air pressure heat exchanger and the boiler heat exchanger are respectively connected with the first return water communicating tank and the second return water communicating tank;
the water outlet end of the first water return communication tank is used as a water return output end of the waste heat exchanger unit and is connected with a hot end water inlet of the heat pump unit;
the water inlet end of the second backwater communicating tank is used as a backwater water inlet end of the waste heat exchanger unit and is connected with the water outlet of the water collector.
5. The heat pump-based flue gas plant waste heat recovery and energy saving system according to claim 4, wherein the first heat exchange unit comprises: an office building heat exchanger and a first water separator;
the office building heat exchanger is connected with the first water separator through an office building circulation pipeline, and the first water separator is used for conveying circulating hot water into heating circulation pipelines in different offices.
6. The heat pump-based flue gas plant waste heat recovery and energy conservation system of claim 5, wherein the second heat exchange unit comprises: a plant heat exchanger and a second water separator;
the workshop heat exchanger is connected with the second water separator through a workshop circulation pipeline, and the second water separator is used for conveying circulating hot water into each heating circulation pipeline of the workshop.
7. The heat pump-based flue gas plant waste heat recovery and energy conservation system of claim 6, wherein the office building heat exchanger and the plant heat exchanger employ plate heat exchangers.
8. The heat pump-based flue gas plant waste heat recovery and energy conservation system of claim 7, further comprising: a regulating valve;
the first pipeline, the second pipeline and the water return pipeline are all provided with regulating valves so as to regulate the running water quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320768780.9U CN219283687U (en) | 2023-04-04 | 2023-04-04 | Waste heat recovery and energy saving system of smoke factory based on heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320768780.9U CN219283687U (en) | 2023-04-04 | 2023-04-04 | Waste heat recovery and energy saving system of smoke factory based on heat pump |
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| CN219283687U true CN219283687U (en) | 2023-06-30 |
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| CN202320768780.9U Active CN219283687U (en) | 2023-04-04 | 2023-04-04 | Waste heat recovery and energy saving system of smoke factory based on heat pump |
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- 2023-04-04 CN CN202320768780.9U patent/CN219283687U/en active Active
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