CN105258394B - Carbon dioxide heat pump system - Google Patents
Carbon dioxide heat pump system Download PDFInfo
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- CN105258394B CN105258394B CN201510650667.0A CN201510650667A CN105258394B CN 105258394 B CN105258394 B CN 105258394B CN 201510650667 A CN201510650667 A CN 201510650667A CN 105258394 B CN105258394 B CN 105258394B
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- cooler
- carbon dioxide
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- heat exchanger
- cold
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/963—Off-grid food refrigeration
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Abstract
Carbon dioxide heat pump system involved in the present invention,Because the first cooling water can be changed into hot water by the first cooler,Hot water introduces bactericidal unit,Sterilization treatment is carried out to dairy products,Second cooling water can be changed into warm water by the second cooler,Warm water introduces preheating device,Dairy products are preheated,Chilled water can be changed into cold water by evaporator,Cold water is introduced into cooling device and cold storage plant,So as to which dairy products are cooled down and refrigerated,And,First heat exchanger is provided between first cooler and the second cooler,Second heat exchanger is provided between second cooler and choke valve,Improve the coefficient of performance in heating and coefficient of performance of refrigerating of carbon dioxide heat pump system,And it is destructive what carbon dioxide do not have to environment substantially,Wide material sources,It is cheap,Therefore the heat pump efficiency of the carbon dioxide heat pump system of the present invention is high,It can not only be saved when providing heat and cold for dairy products system of processing,But also environmental protection.
Description
Technical field
The invention belongs to dairy product processing field, and in particular to a kind of to provide heat and cold for dairy products production system
Carbon dioxide heat pump system.
Background technology
With the fast development of China's economy, need to consume the substantial amounts of energy daily, substantial amounts of energy resource consumption will certainly be right
Environment causes serious influence, at present, the environmental problem getting worse in China, the haze caused by mass energy consumes, ozone
The health of the problems such as damage layer, serious threat to people.Therefore, in various production processes, we urgently find one kind
The energy supply mode of energy-conserving and environment-protective.
Generally, the energy that Dairy Products Processing Factory needs to use includes：Heat energy, electric energy and water.In dairy products processing industry, one
As include preheating, sterilization, cooling and cryopreservation step, sterilization typically use high temperature sterilization, however, preheating and sterilization needs heat
There is provided by boiler combustion natural gas, the cold that cooling and refrigeration need is carried by electronic HFC (freon) refrigeration system
Supply.According to statistics, in Dairy Industry, the expense of natural gas and power consumption accounts for the 32% and 40% of totle drilling cost respectively, and
And the dairy products for often producing 1Kg discharge 50~100g carbon dioxide into air.It is well known that freon is to smelly in atmosphere
Oxygen layer destructive power is very strong, and therefore, people should try one's best in refrigeration systems to be avoided using freon and chloro-fluoro-carbon kind can be to ozone layer
The refrigerant damaged, also, the electric energy used in dairy products processing, the power consumption for having 31% is for refrigeration.Cause
This, it would be desirable to a kind of energy-conserving and environment-protective and the system for being capable of supply that enough heats and refrigeration.
The content of the invention
The present invention is, and it is an object of the present invention to provide one kind can be dairy products production system in order to solving the above problems and carry out
The carbon dioxide heat pump system of energy-conserving and environment-protective.
Carbon dioxide heat pump system provided by the invention, it is characterised in that including：Compressor, for providing HTHP
Carbon dioxide；Heating part, comprising：For introducing the first water inlet pipe of the first cooling water, being connected and make with the first water inlet pipe
First cooling water is heated to be hot water while is changed into the first cooler of medium temperature carbon dioxide, for drawing by HTHP carbon dioxide
Enter the second water inlet pipe of the second cooling water, be connected with the second water inlet pipe and the first cooler and make medium temperature carbon dioxide by
Two cooling waters are heated to be warm water while are changed into the second cooler of low-temperature carbon dioxide；Refrigeration section, comprising：With the second cooler phase
Be connected to be changed into after low-temperature carbon dioxide is throttled low pressure CO 2 choke valve, for introduce chilled water the 3rd
Water inlet pipe, it is connected with choke valve and the 3rd water inlet pipe and so that chilled water is changed into the evaporator of cold water, wherein, hot water and breast
The bactericidal unit of production of articles system is connected, and for providing heat to bactericidal unit, warm water is pre- with dairy products production system
Thermal is connected, for providing heat, cold water and the cooling device and cold storage plant of dairy products production system to preheating device
It is connected, for providing cold to cooling device and cold storage plant, heating part also includes：With the first cooler, the second cooler
The first heat exchanger being connected with compressor, refrigeration section also include：It is located between the second cooler and choke valve and with
The second heat exchanger that two coolers, choke valve, first heat exchanger and evaporator are connected, second heat exchanger are utilized from steaming
The low pressure CO 2 of hair device discharge cools down to low-temperature carbon dioxide, sharp in first heat exchanger subsequently into choke valve
The low pressure CO 2 discharged out of second heat exchanger is heated with medium temperature carbon dioxide, subsequently into compressor.
The carbon dioxide heat pump system of the present invention can also have the feature that：Wherein, heating part also includes：Respectively with
The first outlet pipe that first cooler and bactericidal unit are connected and it is connected respectively with the second cooler and preheating device
Second outlet pipe, the first outlet pipe are used to hot water guiding to bactericidal unit from the first cooler, and the second outlet pipe is used for warm water
Preheating device is guided to from the second cooler.
The carbon dioxide heat pump system of the present invention can also have the feature that：Wherein, it is provided with the first outlet pipe
First by-passing valve, the second by-passing valve is installed on second outlet pipe.
The carbon dioxide heat pump system of the present invention can also have the feature that：Wherein, refrigeration section also includes：Respectively with
The 3rd outlet pipe that evaporator is connected with cooling device, cold storage plant, the 3rd outlet pipe are used to draw cold water from evaporator
Into cooling device, cold storage plant.
The effect of invention and effect
According to carbon dioxide heat pump system involved in the present invention, because the first cooling water can be changed into heat by the first cooler
Water, hot water introduce bactericidal unit, and sterilization treatment is carried out to dairy products, and the second cooling water can be changed into warm water by the second cooler, temperature
Water introduces preheating device, and dairy products are preheated, and chilled water can be changed into cold water by evaporator, cold water be introduced into cooling device and
Cold storage plant, the first heat is provided with so as to which dairy products are cooled down and refrigerated, also, between the first cooler and the second cooler
Exchanger, second heat exchanger is provided between the second cooler and choke valve, improves the heating of carbon dioxide heat pump system
Can coefficient and coefficient of performance of refrigerating, and what destructiveness carbon dioxide have to environment substantially, wide material sources, cheap,
Therefore the heat pump efficiency of the carbon dioxide heat pump system of the present invention is high, when providing heat and cold for dairy products system of processing not only
It can save, but also environmental protection.
Brief description of the drawings
Fig. 1 is the structural representation of carbon dioxide heat pump system in embodiments of the invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, it is real below
Example combination accompanying drawing is applied to be specifically addressed the carbon dioxide heat pump system of the present invention.
Fig. 1 is the structural representation of carbon dioxide heat pump system in embodiments of the invention.
As shown in figure 1, carbon dioxide heat pump system 100 is used to providing heat needed for dairy products production system and cold
Amount, and the effect with energy-conservation and environmental protection.Dairy products production system includes：Bactericidal unit 200, preheating device 300, cooling dress
Put 400, cold storage plant 500.
Bactericidal unit 200 is used to carry out sterilization processing for dairy products, and preheating device 300 is used to preheat dairy products,
Cooling device 400 is used to cool down dairy products, and cold storage plant 500 is used to refrigerate dairy products.
Carbon dioxide heat pump system 100 includes：Compressor 110, heating part 120 and refrigeration section 130.
Compressor 110 is used to carbon dioxide being compressed as HTHP carbon dioxide.
Heating part 120 includes：First water inlet pipe 121, the first cooler 122, the second water inlet pipe 123, the second cooler
124th, first heat exchanger 125, the first outlet pipe 126 and the second outlet pipe 127.
First water inlet pipe 121 is connected with the water inlet of the first cooler 122, for introducing the to the first cooler 122
One cooling water.One end of first outlet pipe 126 is connected with the delivery port of the first cooler 122, the other end and bactericidal unit 200
It is connected, for the hot water in the first cooler 122 to be guided into bactericidal unit 200.The air inlet of first cooler 122 and compression
The gas outlet of machine 110 is connected, and the gas outlet of the first cooler 122 is connected with the air inlet a of first heat exchanger 125, and first
The gas outlet b of heat exchanger 125 is connected with the air inlet of the second cooler 124.Second water inlet pipe 123 and the second cooler 124
Water inlet be connected, for the second cooler introduce the second cooling water.One end of second outlet pipe 127 and the second cooler
124 delivery port is connected, and the other end is connected with preheating device 300, pre- for the warm water in the second cooler 124 to be guided to
Thermal 300.
Refrigeration section 130 includes：Choke valve 131, evaporator 132, the 3rd water inlet pipe 133, second heat exchanger 134 and the 3rd
Outlet pipe 135.
The air inlet e of second heat exchanger 134 is connected with the gas outlet of the second cooler 124, second heat exchanger 134
Gas outlet g is connected with choke valve 131, and choke valve 131 is arranged on the inlet port of evaporator 132, and choke valve 131 is used for flowing through
Its carbon dioxide carries out expenditure and pressure.3rd water inlet pipe 133 is connected with the water inlet of evaporator 132, for evaporator 132
Introduce chilled water.The gas outlet of evaporator 132 is connected with the air inlet h of second heat exchanger 134.The one of 3rd outlet pipe 135
End is connected with the delivery port of evaporator 132, and the other end is connected with cooling device 400 and cold storage plant 500, for by evaporator
Cold water in 132 guides to cooling device 400 and cold storage plant 500.
The gas outlet f of second heat exchanger 134 is connected with the air inlet d of first heat exchanger 125, first heat exchanger
125 gas outlet c is connected with the air inlet of compressor 110.
The HTHP carbon dioxide that compressor 110 is discharged enters the first cooler 122, and HTHP carbon dioxide is by the
The first cooling water in one cooler 122 is cooled to medium temperature carbon dioxide, meanwhile, the first cooling water be heated as hot water or
Steam, hot water or steam are discharged into bactericidal unit 200 from the first outlet pipe 126, and heat is provided for bactericidal unit 200, from
And dairy products are sterilized.
The first cooling water come out from the first cooler 122 can be heated to 95 DEG C, meet the needs of dairy products sterilizing.
Certainly, the heated temperature of the first cooling water is not limited only to 95 DEG C, can be adjusted according to the needs of production.
Enter first heat exchanger 125 from air inlet a from the medium temperature carbon dioxide of the first cooler 122 discharge, from outlet
Mouth b discharges, subsequently into the second cooler 124, medium temperature carbon dioxide is cooled to by the second cooling water in the second cooler 124
Low-temperature carbon dioxide, meanwhile, the second cooling water is heated as warm water, and warm water is discharged into pre- hot charging from the second outlet pipe 127
300 are put, is to provide heat with preheating device 300, so as to be preheated for dairy products.
The second cooling water come out from the second cooler 124 can be heated to 50 DEG C, meet the need to dairy products preheating
Ask.Certainly, the heated temperature of the second cooling water is not limited only to 50 DEG C, can be adjusted according to the needs of production.
Enter second heat exchanger 134 from air inlet e from the low-temperature carbon dioxide of the second cooler 124 discharge, from outlet
Mouth g discharges, then by entering after the expenditure and pressure of choke valve 131 in evaporator 132.Wherein, low-temperature carbon dioxide is through celebrating a festival
After the throttling for flowing valve 131, it is changed into low pressure CO 2, and low pressure CO 2 now is two-phase state, two-phase state
Low pressure CO 2 evaporates in evaporator 132, so as to absorb the chilled water entered from the 3rd water inlet pipe 133 in evaporator 132
Heat, chilled water is changed into cold water after absorption heat, cold water is discharged into cooling device 400 and cold from the 3rd outlet pipe 135
Device 500 is hidden, is freezed for cooling device 400 and cold storage plant 500.
The cold water come out from evaporator 132 can be lowered to 4 DEG C, meet the needs of refrigeration.Certainly, the temperature of cold water is not
4 DEG C are only limitted to, can be adjusted according to the needs of production.
The low pressure CO 2 discharged from evaporator 132 is again introduced into second heat exchanger 134 from air inlet h, flows through the
After two heat exchangers 134, discharged from gas outlet f.Low pressure CO 2 will flow through the second heat exchange when flowing through second heat exchanger 134
The low-temperature carbon dioxide of device 134 is cooled, and reduce further the temperature of the low-temperature carbon dioxide into choke valve 131, from
And improve the refrigeration COP of carbon dioxide heat pump system.
The low pressure CO 2 discharged from the gas outlet f of second heat exchanger 134 enters first heat exchanger from air inlet d
125, after flowing through first heat exchanger 125, discharged from gas outlet c.The quilt when carbon dioxide of low pressure flows through first heat exchanger 125
Medium temperature carbon dioxide heats, and improves the temperature of the low pressure CO 2 into compressor 110, so as to improve carbon dioxide heat
The heating COP of pumping system system.
Then, the low pressure CO 2 of the gas outlet c discharges from first heat exchanger 125 is compressed by compressor 110
The carbon dioxide of HTHP is discharged afterwards, and so circulation is carried out.
The effect of embodiment and effect
Carbon dioxide heat pump system according to involved by the present embodiment, because the first cooling water can be changed into by the first cooler
Hot water, hot water introduce bactericidal unit, and sterilization treatment is carried out to dairy products, and the second cooling water can be changed into warm water by the second cooler,
Warm water introduces preheating device, dairy products is preheated, chilled water can be changed into cold water by evaporator, and cold water is introduced into cooling device
And cold storage plant, so as to which dairy products are cooled down and refrigerated, also, first is provided between the first cooler and the second cooler
Heat exchanger, second heat exchanger is provided between the second cooler and choke valve, improves the heating of carbon dioxide heat pump system
The coefficient of performance and coefficient of performance of refrigerating, and carbon dioxide does not have any destructiveness to environment substantially, and wide material sources, price are low
It is honest and clean, therefore the heat pump efficiency of the carbon dioxide heat pump system of the present invention is high, when providing heat and cold for dairy products system of processing
It can not only save, but also environmental protection.
Above-mentioned embodiment is the preferred case of the present invention, is not intended to limit protection scope of the present invention.
The first outlet pipe is connected with bactericidal unit in above-described embodiment, and heat is provided for being sterilized for dairy products, and second
Outlet pipe is connected with preheating device, and energy is provided for carrying out preheating to dairy products.In the carbon dioxide heat-pump system of the present invention
The first by-passing valve can also be provided with system on the first outlet pipe, the second by-passing valve is provided with the second outlet pipe, is passed through
Hot water and warm water can be introduced domestic water system by the first by-passing valve and the second by-passing valve respectively, and life heat is provided for employee
Water, or the hot-water heating system in hotel nearby is introduced, provide domestic hot-water for hotel.
Claims (2)
1. a kind of carbon dioxide heat pump system, for providing heat and cold needed for dairy products production system, its feature exists
In, including：
Compressor, for providing HTHP carbon dioxide；
Heating part, comprising：For introducing the first water inlet pipe of the first cooling water, being connected with first water inlet pipe and making institute
State HTHP carbon dioxide by first cooling water be heated to be hot water and meanwhile be changed into the first cooler of medium temperature carbon dioxide,
For introducing the second water inlet pipe of the second cooling water, being connected with second water inlet pipe and first cooler and making institute
Medium temperature carbon dioxide is stated second cooling water is heated to be into warm water while is changed into the second cooler of low-temperature carbon dioxide；
Refrigeration section, comprising：It is connected with second cooler for being changed into low after the low-temperature carbon dioxide is throttled
Press the choke valve of carbon dioxide, the 3rd water inlet pipe for introducing chilled water, with the choke valve and the 3rd water inlet pipe phase
Connect and cause the chilled water to be changed into the evaporator of cold water,
Wherein, the hot water is connected with the bactericidal unit of the dairy products production system, for being provided to the bactericidal unit
The heat,
The warm water is connected with the preheating device of the dairy products production system, for providing the heat to the preheating device
Amount,
The cold water is connected with the cooling device and cold storage plant of the dairy products production system, for the cooling device
The cold is provided with the cold storage plant,
The heating part also includes：First to be connected with first cooler, second cooler and the compressor
Heat exchanger,
The refrigeration section also includes：Be located between second cooler and the choke valve and with second cooler,
The second heat exchanger that the choke valve, the first heat exchanger are connected with the evaporator,
The second heat exchanger is carried out using from the low pressure CO 2 that the evaporator is discharged to the low-temperature carbon dioxide
Cooling, then the low-temperature carbon dioxide enters the choke valve,
Using the medium temperature carbon dioxide to the low pressure titanium dioxide discharged out of described second heat exchanger in first heat exchanger
Carbon is heated, subsequently into the compressor,
The heating part also includes：The first outlet pipe for being connected respectively with first cooler and the bactericidal unit, with
And the second outlet pipe being connected respectively with second cooler and the preheating device,
First outlet pipe is used to the hot water guiding to the bactericidal unit from first cooler,
Second outlet pipe is used to the warm water guiding to the preheating device from second cooler,
First by-passing valve is installed on first outlet pipe, the second by-passing valve is installed on second outlet pipe,
One air inlet of the second heat exchanger is connected with the gas outlet of second cooler, the second heat exchanger
A gas outlet be connected with the choke valve, the choke valve be arranged on the evaporator inlet port, the evaporator
Gas outlet be connected with another air inlet of the second heat exchanger, another gas outlet of the second heat exchanger with
The low-pressure admission mouth of the first heat exchanger directly connects, the low-pressure admission mouth of the first heat exchanger and described second cold
But device does not connect.
2. carbon dioxide heat pump system according to claim 1, it is characterised in that：
Wherein, the refrigeration section also includes：It is connected respectively with the evaporator and the cooling device, the cold storage plant
3rd outlet pipe,
3rd outlet pipe is used to guiding to the cold water into the cooling device, the cold storage plant from the evaporator
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650667.0A CN105258394B (en) | 2015-10-10 | 2015-10-10 | Carbon dioxide heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650667.0A CN105258394B (en) | 2015-10-10 | 2015-10-10 | Carbon dioxide heat pump system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105258394A CN105258394A (en) | 2016-01-20 |
| CN105258394B true CN105258394B (en) | 2017-11-14 |
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ID=55098186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510650667.0A Active CN105258394B (en) | 2015-10-10 | 2015-10-10 | Carbon dioxide heat pump system |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576283B (en) * | 2009-06-11 | 2012-02-15 | 上海理工大学 | Water heater with heating-supply from transcritical carbon dioxide heat-pump |
| CN102345940A (en) * | 2010-08-05 | 2012-02-08 | 佛山市众越节能环保技术开发有限公司 | Novel refrigeration system with energy system optimization device |
| CN102283284B (en) * | 2011-06-16 | 2013-04-03 | 上海理工大学 | Transcritical carbon dioxide heat pump milk disinfecting and cooling system and method |
| CN102721225B (en) * | 2012-07-09 | 2014-10-22 | 西华大学 | High-temperature heat pump and using method thereof |
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