CN115886067A - Pasteurization system and method based on high-temperature heat pump technology - Google Patents
Pasteurization system and method based on high-temperature heat pump technology Download PDFInfo
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- CN115886067A CN115886067A CN202211432983.7A CN202211432983A CN115886067A CN 115886067 A CN115886067 A CN 115886067A CN 202211432983 A CN202211432983 A CN 202211432983A CN 115886067 A CN115886067 A CN 115886067A
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Abstract
The invention relates to a pasteurization system based on a high-temperature heat pump technology and a method thereof, which can greatly reduce the steam consumption on the basis of not influencing the original production process by utilizing the waste heat in the existing production process and adopting the high-temperature heat pump technology, adopt electric energy for substitution, greatly reduce the operation cost while improving the system energy efficiency, simultaneously have better environmental benefits and provide ideas for energy conservation and efficiency improvement in the milk production process. Meanwhile, a large amount of waste heat in the existing production process is recycled in a combined manner, so that the energy utilization efficiency is greatly improved. The invention replaces the original steam by electric power, can greatly reduce the operation cost and greatly improve the overall energy efficiency of the system.
Description
Technical Field
The invention belongs to the technical field of milk production, and particularly relates to a pasteurization system and method based on a high-temperature heat pump technology.
Background
Currently, pasteurization technology is widely adopted in liquid milk and milk powder production equipment, milk needs to be heated to 75-80 ℃, the heating method commonly adopted at present is to utilize high-temperature steam for heat exchange, however, steam is used as a heat source, the energy grade is higher, and the energy cost for producing steam is increased along with the increase of the price of natural gas. With the development of high-temperature heat pump technology, the temperature of hot water which can be produced currently exceeds 80 ℃, and a technical basis is provided for electric power replacement of pasteurization equipment.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a pasteurization system based on a high-temperature heat pump technology and a method thereof, can greatly improve the economical efficiency and the operation energy efficiency of the technological process by utilizing waste heat and replacing electric energy in the pasteurization process, simultaneously reduces the carbon emission of the system, and has good economic benefit and environmental benefit.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides a pasteurization system based on high temperature heat pump technique, includes high temperature heat pump set, heat pump condensation side circulating pump, heat pump evaporation side circulating pump and milk production facility, high temperature heat pump set's condensation side export is passed through heat pump condensation side circulating pump and is connected milk production facility, and high temperature heat pump set's condensation side entry linkage milk production facility, high temperature heat pump set's evaporation side export is passed through heat pump evaporation side circulating pump and is connected milk production facility.
And the milk production equipment comprises milk pasteurization equipment, milk heat exchange equipment, milk primary cooling equipment and milk final cooling equipment, and the milk pasteurization equipment, the milk heat exchange equipment, the milk primary cooling equipment and the milk final cooling equipment are sequentially connected.
And the milk heat exchange equipment is internally provided with a milk-milk heat exchanger, wherein a heat pump condensation side circulating pump is connected with one end of the milk-milk heat exchanger, and a condensation side inlet of the high-temperature heat pump unit is connected with the other end of the milk-milk heat exchanger.
And a milk-water heat exchanger is arranged in the milk final cooling device, an evaporation side inlet of the high-temperature heat pump unit is connected with one end of the milk-water heat exchanger, and a heat pump evaporation side circulating pump is connected with the other end of the milk-water heat exchanger.
Moreover, the cold source in the process of the milk-water heat exchanger is a water chilling unit.
A method of a pasteurization system based on high temperature heat pump technology comprises a heating process and a cooling process.
Further, the heating process includes the steps of:
step 1.1, after raw milk passes through milk pasteurization equipment, the raw milk enters a milk-milk heat exchanger in milk heat exchange equipment to complete heat exchange of the raw milk, and the temperature is raised to 40 ℃;
the raw milk of the step 1.2 and the temperature of 40 ℃ enters a condensation side inlet of a high-temperature heat pump unit,
and step 1.3, heating the raw milk in the high-temperature heat pump unit, and enabling the raw milk to flow out from a condensation side outlet of the high-temperature heat pump unit to finish pasteurization.
Further, the cooling process includes the steps of:
step 2.1, heating the raw milk to complete heat exchange with the raw milk through a milk-milk heat exchanger, reducing the temperature to 42 ℃,
the heated raw milk of step 2.2 and 42 ℃ enters an evaporation side inlet of a high-temperature heat pump unit,
cooling the heated raw milk at the temperature of 42 ℃ in a high-temperature heat pump unit, and flowing out from an evaporation side outlet of the high-temperature heat pump unit;
and 2.4, the cooled raw milk enters final milk cooling equipment to exchange heat with a water chilling unit, and the temperature is reduced.
The invention has the advantages and positive effects that:
1. according to the invention, by utilizing the waste heat in the existing production process and adopting the high-temperature heat pump technology, the steam consumption can be greatly reduced on the basis of not influencing the original production process, the electric energy is adopted for substitution, the operation cost is greatly reduced while the system energy efficiency is improved, and meanwhile, the method has better environmental benefits and provides an idea for energy conservation and efficiency improvement in the milk production process.
2. According to the invention, a large amount of waste heat in the existing production process is combined and recycled, so that the energy utilization efficiency is greatly improved.
3. The invention replaces the original steam by electric power, can greatly reduce the operation cost and greatly improve the overall energy efficiency of the system.
Drawings
FIG. 1 is a block diagram of the present invention.
Description of reference numerals:
1. the system comprises a high-temperature heat pump unit, a high-temperature heat pump unit 2, a heat pump condensation side circulating pump, a heat pump evaporation side circulating pump, a water chilling unit 4, a milk pasteurization device 5, a milk heat exchange device 6, a milk primary cooling device 7, a milk final cooling device 8, a milk-milk heat exchanger 9, a milk-milk heat exchanger 10 and a milk-water heat exchanger.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a pasteurization system based on high temperature heat pump technique, includes high temperature heat pump set 1, heat pump condensation side circulating pump 2, heat pump evaporation side circulating pump 3 and milk production facility, high temperature heat pump set's condensation side export is passed through heat pump condensation side circulating pump and is connected milk production facility, and high temperature heat pump set's condensation side entry linkage milk production facility, high temperature heat pump set's evaporation side export is passed through heat pump evaporation side circulating pump and is connected milk production facility.
The milk production equipment comprises milk pasteurization equipment 5, milk heat exchange equipment 6, milk primary cooling equipment 7 and milk final cooling equipment 8, and the milk pasteurization equipment, the milk heat exchange equipment, the milk primary cooling equipment and the milk final cooling equipment are connected in sequence.
The milk heat exchange equipment is internally provided with a milk-milk heat exchanger 9, wherein a circulating pump at the condensation side of the heat pump is connected with one end of the milk-milk heat exchanger, and an inlet at the condensation side of the high-temperature heat pump unit is connected with the other end of the milk-milk heat exchanger.
A milk-water heat exchanger 10 is arranged in the milk final cooling device, an evaporation side inlet of the high-temperature heat pump unit is connected with one end of the milk-water heat exchanger, and a heat pump evaporation side circulating pump is connected with the other end of the milk-water heat exchanger.
And the cold source in the process of the milk-water heat exchanger is a water chilling unit 4.
A method of a pasteurization system based on high temperature heat pump technology comprises a heating process and a cooling process.
The heating process comprises the following steps:
step 1.1, after raw milk passes through milk pasteurization equipment, the raw milk enters a milk-milk heat exchanger in milk heat exchange equipment to complete heat exchange of the raw milk, and the temperature is raised to 40 ℃;
the raw milk of the step 1.2 and the temperature of 40 ℃ enters a condensation side inlet of a high-temperature heat pump unit,
and step 1.3, heating the raw milk in the high-temperature heat pump unit, and enabling the raw milk to flow out from a condensation side outlet of the high-temperature heat pump unit to finish pasteurization.
The cooling process comprises the following steps:
step 2.1, heating the raw milk to complete heat exchange with the raw milk through a milk-milk heat exchanger, reducing the temperature to 42 ℃,
the heated raw milk of step 2.2 and 42 ℃ enters an evaporation side inlet of a high-temperature heat pump unit,
cooling the heated raw milk at the temperature of 42 ℃ in a high-temperature heat pump unit, and flowing out from an evaporation side outlet of the high-temperature heat pump unit;
and 2.4, the cooled raw milk enters final milk cooling equipment to exchange heat with a water chilling unit, and the temperature is reduced.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention includes, but is not limited to, the embodiments described in the detailed description, as well as other embodiments that can be derived by one skilled in the art from the teachings herein.
Claims (8)
1. A pasteurization system based on high temperature heat pump technology, its characterized in that: including high temperature heat pump set, heat pump condensation side circulating pump, heat pump evaporation side circulating pump and milk production facility, high temperature heat pump set's condensation side export is passed through heat pump condensation side circulating pump and is connected milk production facility, and high temperature heat pump set's condensation side entry linkage milk production facility, high temperature heat pump set's evaporation side entry linkage milk production facility, and high temperature heat pump set's evaporation side export is passed through heat pump evaporation side circulating pump and is connected milk production facility.
2. A pasteurization system based on high temperature heat pump technology according to claim 1, characterized in that: the milk production equipment comprises milk pasteurization equipment, milk heat exchange equipment, milk primary cooling equipment and milk final cooling equipment, wherein the milk pasteurization equipment, the milk heat exchange equipment, the milk primary cooling equipment and the milk final cooling equipment are sequentially connected.
3. A pasteurization system based on high temperature heat pump technology according to claim 2, characterized in that: the milk heat exchange equipment is internally provided with a milk-milk heat exchanger, wherein a circulating pump at the condensation side of the heat pump is connected with one end of the milk-milk heat exchanger, and an inlet at the condensation side of the high-temperature heat pump unit is connected with the other end of the milk-milk heat exchanger.
4. A pasteurization system based on high temperature heat pump technology according to claim 2, characterized in that: the milk final cooling equipment is internally provided with a milk-water heat exchanger, an evaporation side inlet of the high-temperature heat pump unit is connected with one end of the milk-water heat exchanger, and a heat pump evaporation side circulating pump is connected with the other end of the milk-water heat exchanger.
5. A pasteurization system based on high temperature heat pump technology as claimed in claim 4, characterized in that: the cold source in the process of the milk-water heat exchanger is a water chilling unit.
6. A method of pasteurization system based on high temperature heat pump technology according to claim 1, characterized in that: including a heating process and a cooling process.
7. Method of a pasteurization system based on high temperature heat pump technology, in accordance with claim 6, characterized in that: the heating process comprises the steps of:
step 1.1, after raw milk passes through milk pasteurization equipment, the raw milk enters a milk-milk heat exchanger in milk heat exchange equipment to complete heat exchange of the raw milk, and the temperature is raised to 40 ℃;
the raw milk of the step 1.2 and the temperature of 40 ℃ enters a condensation side inlet of a high-temperature heat pump unit,
and step 1.3, heating the raw milk in the high-temperature heat pump unit, and enabling the raw milk to flow out from a condensation side outlet of the high-temperature heat pump unit to finish pasteurization.
8. The method of pasteurization system based on high-temperature heat pump technology according to claim 6, characterized in that: the cooling process comprises the following steps:
step 2.1, heating the raw milk to complete heat exchange with the raw milk through a milk-milk heat exchanger, reducing the temperature to 42 ℃,
the heated raw milk of step 2.2 and 42 ℃ enters an evaporation side inlet of a high-temperature heat pump unit,
cooling the heated raw milk at the temperature of 42 ℃ in a high-temperature heat pump unit, and flowing out from an evaporation side outlet of the high-temperature heat pump unit;
and 2.4, the cooled raw milk enters final milk cooling equipment to exchange heat with a water chilling unit, and the temperature is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211432983.7A CN115886067A (en) | 2022-11-16 | 2022-11-16 | Pasteurization system and method based on high-temperature heat pump technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211432983.7A CN115886067A (en) | 2022-11-16 | 2022-11-16 | Pasteurization system and method based on high-temperature heat pump technology |
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| CN202211432983.7A Pending CN115886067A (en) | 2022-11-16 | 2022-11-16 | Pasteurization system and method based on high-temperature heat pump technology |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203893501U (en) * | 2014-06-10 | 2014-10-22 | 北京中科华誉能源技术发展有限责任公司 | Electric compression heat pump for pasteurization link |
| US20180325147A1 (en) * | 2015-09-29 | 2018-11-15 | Red Bull Gmbh | System and method for pasteurizing foods |
| CN110897004A (en) * | 2019-12-13 | 2020-03-24 | 上海海洋大学 | Milk freezing concentration pasteurization method |
| CN214758926U (en) * | 2021-03-30 | 2021-11-19 | 内蒙古大丰源轻工机械有限公司 | Continuous pasteurization system of milk |
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- 2022-11-16 CN CN202211432983.7A patent/CN115886067A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203893501U (en) * | 2014-06-10 | 2014-10-22 | 北京中科华誉能源技术发展有限责任公司 | Electric compression heat pump for pasteurization link |
| US20180325147A1 (en) * | 2015-09-29 | 2018-11-15 | Red Bull Gmbh | System and method for pasteurizing foods |
| CN110897004A (en) * | 2019-12-13 | 2020-03-24 | 上海海洋大学 | Milk freezing concentration pasteurization method |
| CN214758926U (en) * | 2021-03-30 | 2021-11-19 | 内蒙古大丰源轻工机械有限公司 | Continuous pasteurization system of milk |
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