CN113465274A - Condensing unit and condensing method for milk refrigeration - Google Patents
Condensing unit and condensing method for milk refrigeration Download PDFInfo
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- CN113465274A CN113465274A CN202110767823.7A CN202110767823A CN113465274A CN 113465274 A CN113465274 A CN 113465274A CN 202110767823 A CN202110767823 A CN 202110767823A CN 113465274 A CN113465274 A CN 113465274A
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- 235000013336 milk Nutrition 0.000 title claims abstract description 183
- 239000008267 milk Substances 0.000 title claims abstract description 183
- 210000004080 milk Anatomy 0.000 title claims abstract description 183
- 238000005057 refrigeration Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 489
- 230000006835 compression Effects 0.000 claims abstract description 108
- 238000007906 compression Methods 0.000 claims abstract description 108
- 238000001816 cooling Methods 0.000 claims description 189
- 239000007788 liquid Substances 0.000 claims description 65
- 235000020247 cow milk Nutrition 0.000 claims description 57
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 28
- 239000003507 refrigerant Substances 0.000 claims description 22
- 210000001503 joint Anatomy 0.000 claims description 20
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 11
- 239000008239 natural water Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000008400 supply water Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 2
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- 230000004048 modification Effects 0.000 description 4
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- 230000009471 action Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 235000020186 condensed milk Nutrition 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to the field of refrigeration engineering, in particular to a condensing unit and a condensing method for milk refrigeration. The air-cooled refrigeration system comprises an air-cooled system, wherein the air-cooled system is a compression refrigeration system, a cold air outlet of the compression refrigeration system is opposite to a cold air inlet (19) connected with an evaporator (15), an air heat exchange coil is arranged in the evaporator (15), one side of the air heat exchange coil is the cold air inlet (19), the other side of the cold air inlet (19) is opposite to an outlet connected with the cold air, and the outlet of the cold air is connected into the compression refrigeration system; the evaporator (15) also comprises an evaporator cold water inlet (18) and an evaporator cold water outlet (8), and the evaporator cold water outlet (8) is connected with a circulating water pump (12) and a circulating water tank (11). Has the advantages that: the heat exchanger has the advantages of being capable of reducing noise and shock, achieving efficient heat exchange, being capable of flexibly utilizing heat of the surrounding environment, being capable of flexibly utilizing the surrounding environment, and being capable of flexibly selecting and configuring.
Description
Technical Field
The invention relates to the field of refrigeration engineering, in particular to a condensing unit and a condensing method for milk refrigeration.
Background
The compression refrigeration technology is a very mature technology, and the basic principle is as follows: the substance is the carrier of energy exchange, and the substance here is the refrigerant, and the air conditioner is actually a heat cycle exchange system. The compressor compresses gaseous refrigerant into high-temperature high-pressure gaseous refrigerant, the gaseous refrigerant is sent to the condenser to be cooled, the cooled medium-temperature high-pressure liquid refrigerant is changed into medium-temperature high-pressure liquid refrigerant, the medium-temperature high-pressure liquid refrigerant enters the drying bottle to be filtered and dehumidified, the medium-temperature liquid refrigerant is throttled and decompressed by the expansion valve (throttling part) to be changed into low-temperature low-pressure gas-liquid mixture (more liquid), the gas refrigerant is evaporated by absorbing heat in air by the evaporator to be changed into gaseous refrigerant, and then the gaseous refrigerant returns to the compressor to be continuously compressed and continuously circulates to be refrigerated.
Disclosure of Invention
The purpose of the invention is as follows: in order to provide a condensing unit and a condensing method for milk refrigeration with better effect, the specific purpose is seen in a plurality of substantial technical effects of the specific implementation part.
In order to achieve the purpose, the invention adopts the following technical scheme:
the first scheme is as follows:
the air-cooled cow milk cooling system is characterized by comprising an air-cooled system, wherein the air-cooled system is a compression type refrigerating system, a cold air outlet of the compression type refrigerating system is butted with a cold air inlet 19 of an evaporator 15, an air heat exchange coil is arranged in the evaporator 15, one side of the air heat exchange coil is the cold air inlet 19, the other side of the cold air inlet 19 is butted with a cold air outlet, and the cold air outlet is connected into the compression type refrigerating system; the evaporator 15 also comprises an evaporator cold water inlet 18 and an evaporator cold water outlet 8, and the evaporator cold water outlet 8 is connected with a circulating water pump 12 and a circulating water tank 11.
The present invention has a further technical proposal that the evaporator 15 also comprises an evaporator air outlet 16 and an evaporator water outlet 17.
The invention has the further technical proposal that the circulating water tank 11 can be used for placing milk; the circulation water tank 11 is also connected to the evaporator cold water outlet 8 via the evaporator return port 9.
Scheme II:
the water-cooled cow milk cooling system is characterized by comprising a water cooling system, wherein the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on a base frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is positioned in a cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; and a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9.
The invention further adopts the technical scheme that a small circulating water tank A4 is also arranged between the compression type refrigeration system and the milk heat exchange box 23, and the small circulating water tank A4 is positioned on the chilled water inlet pipe for hydraulic concentration.
The compression type refrigeration system comprises more than one group of compressors, and the more than one group of compressors are arranged in parallel.
The invention further adopts the technical scheme that a medium in the small circulating water tank A4 is glycol low-temperature secondary refrigerant and is connected with the milk heat exchange box 23, the small circulating water tank A4 is connected with a compression type refrigerating system, the glycol can be cooled to 0-5 ℃ or lower temperature by utilizing production gaps or off-peak electricity price at night, and the small circulating water tank A4 realizes the storage of cold energy.
The third scheme is as follows:
the cooling system combining air cooling and water cooling is characterized in that the cooling system comprises a milk heat exchange box 23, the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23;
the milk heat exchange box 23 is simultaneously connected with a water-cooled milk cooling system and an air-cooled milk cooling system; the water-cooled milk cooling system and the air-cooled milk cooling system can work together or alternatively work;
the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is located in the cow milk heat exchange box 23; and a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9.
The air-cooled cow milk cooling system comprises an air-cooled system, the air-cooled system is a compression type refrigerating system, a cold air outlet of the compression type refrigerating system is butted with a cold air inlet 19 of an evaporator 15, an air heat exchange coil is arranged in the evaporator 15, one side of the air heat exchange coil is a cold air inlet 19, the other side of the cold air inlet 19 is butted with a cold air outlet, and the cold air outlet is connected into the compression type refrigerating system; the evaporator 15 also comprises an evaporator cold water inlet 18 and an evaporator cold water outlet 8, and the evaporator cold water outlet 8 is connected with a circulating water pump 12 and a circulating water tank 11.
The further technical proposal of the invention is that a valve is arranged on a cold water pipeline of the air-cooled cow milk cooling system, and a valve is arranged on a cold water pipeline of the water-cooled cow milk cooling system; the valve is intelligent valve.
The invention further has the technical scheme that a temperature sensor is arranged in the milk heat exchange box 23.
The invention further adopts the technical scheme that the temperature sensor is in communication connection with a central control part, the central control part is a communication host, and the communication host is in communication connection with the valve.
And the scheme is as follows:
the water-cooled cow milk cooling system utilizing the natural cooling energy of the water tower is characterized in that the milk heat exchange box 23 comprises two cooling systems which are respectively a water-cooled cow milk cooling system and a natural water cooling system; the natural water cooling system comprises an external water tower or water tank B1, the external water tower or water tank B1 is connected with a natural circulating water pump through a water pipe, and the natural circulating water pump is positioned in a water path of the natural circulating water liquid heat exchange coil; the natural circulating water liquid heat exchange coil is positioned in the milk heat exchange box 23;
the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is located in the cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; and a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9.
The invention further adopts the technical scheme that the natural circulating water liquid heat exchange coil and the liquid heat exchange coil are two independent coils.
The invention further adopts the technical scheme that the natural circulating water liquid heat exchange coil and the liquid heat exchange coil are one coil, namely, the water inlet of the coil is connected with an external water tower or a water tank B1 or a chilled water source through a tee; the water outlet of the coil is connected with an external water tower or a water tank B1 or a chilled water outlet through a tee; an optional two-way cycle is implemented.
And a fifth scheme:
the refrigeration system utilizing the sleeve-in-sleeve structure is characterized in that the milk heat exchange box 23 comprises an inner water tank 231, the outer part of the inner water tank 231 is a water tank outer layer 232, and an inner feed port 237, an inner chilled water inlet 238, an inner discharge port 239 and an inner chilled water outlet 2310 are connected to the inner water tank 231; the inner chilled water outlet 2310 and the inner chilled water inlet 238 are connected with a water-cooled cow milk cooling system, the water-cooled cow milk cooling system comprises a water-cooled system, the water-cooled system is a compression type refrigerating system, the compression type refrigerating system is arranged on the base frame 21, the inner chilled water outlet 2310 and the inner chilled water outlet 2310 of the compression type refrigerating system are in butt joint with a liquid heat exchange coil, and the liquid heat exchange coil is positioned in the cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; the inner layer feed port 237 and the inner layer discharge port 239 jointly form an inlet part and an outlet part of the milk;
the outer layer 232 of water tank is still communicating outer return water mouth 233 and external water inlet 236, and outer return water mouth 233 and external water inlet 236 are passing through the external special water tank 234 of tube coupling to external return water mouth 233 has arranged external water pump 235 on the pipeline of external water inlet 236 connection.
The further technical scheme of the invention is that the inner water tank 231 is connected with the inner wall of the outer water tank layer 232 through a vertical column.
The further technical scheme of the invention is that one side of the outer layer 232 and one side of the inner layer 231 of the water tank share the same wall, and the rest three sides are of a nested sandwich structure.
A further technical solution of the present invention is that an interlayer underwater water pipe 2311 is provided below the outer layer 232 of the water tank, and the interlayer underwater water pipe 2311 is connected to a blow-down water tank 2312.
The further technical scheme of the invention is that the emptying water tank 2312 is connected with a water pipe where the external water pump 235 is arranged through a pipeline.
Scheme six:
a water cooling system for reducing noise of a cooling system in a plant area by using a water cover is characterized in that,
the cooling system comprises a base frame 21, wherein a lower water tank 22 is arranged below the base frame 21; the water cooling system is a compression type refrigeration system, the compression type refrigeration system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigeration system are connected with a liquid heat exchange coil in a butt joint mode, and the liquid heat exchange coil is positioned in the milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9; the noise of the compressor operation of the compression refrigeration system can be absorbed and reduced by the underlying waterbox 22.
A further technical solution of the present invention is that the underlying water tank 22 can supply water to a compression refrigeration system.
The invention further adopts the technical scheme that part of the milk heat exchange box 23 is positioned in the lower water tank 22 so as to exchange heat with water in the lower water tank 22.
The technical scheme of the invention is that the chilled water outlet pipe A9 is a double-layer pipeline, the chilled water outlet pipe A9 comprises a chilled water inlet pipe outer layer 261 and a chilled water inlet pipe inner layer 262, and the chilled water inlet pipe outer layer 261 is connected with the material inlet pipe 24, so that the material entering from the material inlet pipe 24 can exchange heat with cold water in the chilled water inlet pipe inner layer 262 through the chilled water inlet pipe outer layer 261 at the pipeline stage.
The scheme is seven:
1. a condensing unit for cow milk refrigeration, its characterized in that, condensing unit is any one of following:
the first scheme is as follows: the air-cooled cow milk cooling system comprises an air-cooled system, wherein the air-cooled system is a compression type refrigeration system, a cold air outlet of the compression type refrigeration system is butted with a cold air inlet 19 of an evaporator 15, an air heat exchange coil is arranged in the evaporator 15, one side of the air heat exchange coil is provided with the cold air inlet 19, the other side of the cold air inlet 19 is butted with a cold air outlet, and the cold air outlet is connected into the compression type refrigeration system; the evaporator 15 also comprises an evaporator cold water inlet 18 and an evaporator cold water outlet 8, and the evaporator cold water outlet 8 is connected with a circulating water pump 12 and a circulating water tank 11;
the second scheme is as follows: the water-cooled cow milk cooling system comprises a water cooling system, wherein the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on a basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is positioned in a cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9;
in the third scheme: the cooling system combines air cooling and water cooling, the cooling system comprises a milk heat exchange box 23, the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23;
the milk heat exchange box 23 is simultaneously connected with a water-cooled milk cooling system and an air-cooled milk cooling system; the water-cooled milk cooling system and the air-cooled milk cooling system can work together or alternatively work;
the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is located in the cow milk heat exchange box 23; a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9;
the air-cooled cow milk cooling system comprises an air-cooled system, the air-cooled system is a compression type refrigerating system, a cold air outlet of the compression type refrigerating system is butted with a cold air inlet 19 of an evaporator 15, an air heat exchange coil is arranged in the evaporator 15, one side of the air heat exchange coil is a cold air inlet 19, the other side of the cold air inlet 19 is butted with a cold air outlet, and the cold air outlet is connected into the compression type refrigerating system; the evaporator 15 also comprises an evaporator cold water inlet 18 and an evaporator cold water outlet 8, and the evaporator cold water outlet 8 is connected with a circulating water pump 12 and a circulating water tank 11;
a fourth scheme: the water-cooled milk cooling system utilizing the natural cooling energy of the water tower, the milk heat exchange box 23 comprises two cooling systems which are respectively a water-cooled milk cooling system and a natural water cooling system; the natural water cooling system comprises an external water tower or water tank B1, the external water tower or water tank B1 is connected with a natural circulating water pump through a water pipe, and the natural circulating water pump is positioned in a water path of the natural circulating water liquid heat exchange coil; the natural circulating water liquid heat exchange coil is positioned in the milk heat exchange box 23;
the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is located in the cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9;
the fifth scheme is as follows: by utilizing the refrigeration system with the sleeve-in-sleeve structure, the milk heat exchange box 23 comprises an inner water tank 231, the outer part of the inner water tank 231 is a water tank outer layer 232, and an inner feed port 237, an inner chilled water inlet 238, an inner discharge port 239 and an inner chilled water outlet 2310 are connected to the inner water tank 231; the inner chilled water outlet 2310 and the inner chilled water inlet 238 are connected with a water-cooled cow milk cooling system, the water-cooled cow milk cooling system comprises a water-cooled system, the water-cooled system is a compression type refrigerating system, the compression type refrigerating system is arranged on the base frame 21, the inner chilled water outlet 2310 and the inner chilled water outlet 2310 of the compression type refrigerating system are in butt joint with a liquid heat exchange coil, and the liquid heat exchange coil is positioned in the cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; the inner layer feed port 237 and the inner layer discharge port 239 jointly form an inlet part and an outlet part of the milk;
the outer layer 232 of the water tank is also communicated with an outer layer water return port 233 and an external water inlet 236, the outer layer water return port 233 and the external water inlet 236 are connected with the external special water tank 234 through pipelines, and an external water pump 235 is arranged on a pipeline connecting the outer layer water return port 233 and the external water inlet 236;
the sixth scheme is as follows: the water cooling system utilizes the water cover to reduce the noise of the plant cooling system, and comprises a base frame 21, wherein a lower water tank 22 is arranged below the base frame 21; the water cooling system is a compression type refrigeration system, the compression type refrigeration system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigeration system are connected with a liquid heat exchange coil in a butt joint mode, and the liquid heat exchange coil is positioned in the milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9; the noise of the compressor operation of the compression refrigeration system can be absorbed and reduced by the underlying water tank 22;
the underneath water tank 22 can supply water to the compression refrigeration system;
part of the milk heat exchange tank 23 is located in the lower water tank 22 and is capable of exchanging heat with water in the lower water tank 22.
Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects: the heat exchanger has the advantages of being capable of reducing noise and shock, achieving efficient heat exchange, being capable of flexibly utilizing heat of the surrounding environment, being capable of flexibly utilizing the surrounding environment, and being capable of flexibly selecting and configuring.
Drawings
To further illustrate the present invention, further description is provided below with reference to the accompanying drawings:
FIG. 1 is a schematic structural diagram of an air-cooled mainframe;
FIG. 2 is a schematic diagram of the internal structure of an air-cooled mainframe;
FIG. 3 is a schematic diagram of the connection of an air-cooled mainframe;
FIG. 4 is a schematic illustration of a noise reduction mode;
FIG. 5 is a system of combined air and water cooling;
FIG. 6 is a schematic view of a further modification of the heat exchange box;
FIG. 7 is a schematic diagram of a water-cooled mainframe;
FIG. 8 is a schematic connection diagram of a water-cooled mainframe;
FIG. 9 is a schematic diagram of a further modification of the water-cooled mainframe;
FIG. 10 is an alternative construction of a sleeve-in-sleeve;
FIG. 11 is a schematic view of a water cooling apparatus;
wherein: 1. a side net cover; 2. a column; 3. a condensing fan; 4. a control cabinet; 5. a low pressure gauge; 6. a high pressure gauge; 7. a finned condenser; 8. a water outlet of the evaporator; 9. a water return port of the evaporator; 10. a water flow switch; 11. a circulating water tank; 12. a water circulating pump; 13. a first compressor; 14. a second compressor; 15. an evaporator; 16. an evaporator exhaust port; 17. an evaporator drain port; 18. an evaporator cold water outlet; 19. a cold air inlet; 20. a cold air outlet; 21. a base frame; 22. a lower water tank; 23. a milk heat exchange box; 24. feeding the material into a pipe; 25. a material outlet pipe; 26. a chilled water inlet pipe; 27. a chilled water outlet pipe; 261. the outer layer of the chilled water inlet pipe; 262. the inner layer of the chilled water inlet pipe; A1. a first compressor; A2. a second compressor; 23. a milk heat exchange box; A4. a small circulation water tank; a5.Y filter; A6. an external water circulation pump; A7. a water outlet pipe of the condenser; A8. a cooling circulation pump; A9. a chilled water outlet pipe; b1 external water tower or tank; 231. an inner water tank; 232. an outer layer of the water tank; 233. an outer-layer water return port; 234. a special water tank is arranged outside; 235. an external water pump; 236. an external water inlet; 237. an inner layer feed inlet; 238. an inner layer chilled water inlet; 239. an inner layer discharge hole; 2310. an inner layer chilled water outlet; 2311. the interlayer water is provided with a water pipe; 2312. and (5) emptying the water tank.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The fixing means, which is not described herein, may be any one of screw fixing, bolt fixing, or glue bonding.
The first embodiment is as follows: combining fig. 1 with fig. 2 and fig. 3;
the air-cooled cow milk cooling system is characterized by comprising an air-cooled system, wherein the air-cooled system is a compression type refrigerating system, a cold air outlet of the compression type refrigerating system is butted with a cold air inlet 19 of an evaporator 15, an air heat exchange coil is arranged in the evaporator 15, one side of the air heat exchange coil is the cold air inlet 19, the other side of the cold air inlet 19 is butted with a cold air outlet, and the cold air outlet is connected into the compression type refrigerating system; the evaporator 15 also comprises an evaporator cold water inlet 18 and an evaporator cold water outlet 8, and the evaporator cold water outlet 8 is connected with a circulating water pump 12 and a circulating water tank 11. The technical scheme of the invention has the following substantial technical effects and the realization process: gas is directly adopted for cooling, and the heat exchange of the milk is realized. The fresh milk produced in fresh can be preserved after being cooled.
Example two: as a further modification or in parallel or alternatively independently, the evaporator 15 further comprises an evaporator air outlet 16 and an evaporator water outlet 17.
The technical scheme of the invention has the following substantial technical effects and the realization process: the drainage and the exhaust can be performed.
Example three: as a further development or in parallel or alternatively independently, the circulation tank 11 can be filled with milk; the circulation water tank 11 is also connected to the evaporator cold water outlet 8 via the evaporator return port 9. The technical scheme of the invention has the following substantial technical effects and the realization process: in this embodiment, the substance to be cooled is milk, which is itself circulating, and the cold air is also circulating, thus enabling air cooling.
Scheme II:
example four: as a further development or in parallel or alternatively independently, fig. 7 and 8 are combined; the water-cooled cow milk cooling system is characterized by comprising a water cooling system, wherein the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on a base frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is positioned in a cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; and a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9. The technical scheme of the invention has the following substantial technical effects and the realization process: the cooling is carried out by water cooling, and the refrigerating medium of the compressor is any one of a plurality of refrigerants such as water, Freon, glycol low-temperature secondary refrigerant and the like. The compression refrigeration technology is undoubtedly the prior art and is not further described herein.
Example five: as a further improved scheme or a parallel scheme or an optional independent scheme, a small circulating water tank A4 is also arranged between the compression type refrigerating system and the milk heat exchange tank 23, and the small circulating water tank A4 is positioned on a chilled water inlet pipe for hydraulic concentration. The technical scheme of the invention has the following substantial technical effects and the realization process: the medium in the small circulation water tank A4 is glycol low-temperature secondary refrigerant, the small circulation water tank A4 is connected with the milk heat exchange box 23, the small circulation water tank A4 is connected with the compression type refrigeration system, the glycol can be cooled to 0-5 ℃ or lower by utilizing production gaps or valley electricity price at night, and the small circulation water tank A4 realizes the storage of cold energy.
Example six: as a further development, either in parallel or alternatively independently, the compression refrigeration system comprises more than one set of compressors, which are arranged in parallel. The technical scheme of the invention has the following substantial technical effects and the realization process: the number of different compressor groups can be adjusted according to the requirements of site and manufacturer.
The third scheme is as follows:
example seven: as a further development or in parallel or alternatively independently, fig. 5 is used; the cooling system combining air cooling and water cooling is characterized in that the cooling system comprises a milk heat exchange box 23, the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23;
the milk heat exchange box 23 is simultaneously connected with a water-cooled milk cooling system and an air-cooled milk cooling system; the water-cooled milk cooling system and the air-cooled milk cooling system can work together or alternatively work;
the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is located in the cow milk heat exchange box 23; and a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9.
The air-cooled cow milk cooling system comprises an air-cooled system, the air-cooled system is a compression type refrigerating system, a cold air outlet of the compression type refrigerating system is butted with a cold air inlet 19 of an evaporator 15, an air heat exchange coil is arranged in the evaporator 15, one side of the air heat exchange coil is a cold air inlet 19, the other side of the cold air inlet 19 is butted with a cold air outlet, and the cold air outlet is connected into the compression type refrigerating system; the evaporator 15 also comprises an evaporator cold water inlet 18 and an evaporator cold water outlet 8, and the evaporator cold water outlet 8 is connected with a circulating water pump 12 and a circulating water tank 11. The technical scheme of the invention has the following substantial technical effects and the realization process: and according to the site permission requirements, cooling is carried out simultaneously or alternatively. Meanwhile, the milk can be quickly cooled; alternatively, cooling may be performed using a cold source, for example, air cooling may be used when the temperature is relatively low, and liquid cooling may be used when the temperature is relatively high. Can flexibly deal with various factory environments and weather environments.
Example eight: as a further improved scheme or a parallel scheme or an optional independent scheme, a valve is arranged on a cold water pipeline of the air-cooled cow milk cooling system, and a valve is arranged on a cold water pipeline of the water-cooled cow milk cooling system; the valve is intelligent valve. The technical scheme of the invention has the following substantial technical effects and the realization process: this scheme of adoption can open all valves or the valve is opened in the alternative. And then flexibly used according to actual requirements.
Example nine: as a further development, either in parallel or alternatively independently, a temperature sensor is arranged in the milk heat exchanger tank 23. The technical scheme of the invention has the following substantial technical effects and the realization process: temperature joint control can be realized.
Example ten: as a further improvement scheme or a parallel scheme or an optional independent scheme, the temperature sensor is in communication connection with the central control part, the central control part is a communication host, and the communication host is in communication connection with the valve.
And the scheme is as follows:
example eleven: as a further improved scheme or a parallel scheme or a selectable independent scheme, the water-cooled cow milk cooling system utilizing natural cold energy of the water tower is characterized in that the cow milk heat exchange box 23 comprises two cooling systems which are respectively a water-cooled cow milk cooling system and a natural water cooling system;
the natural water cooling system comprises an external water tower or water tank B1, the external water tower or water tank B1 is connected with a natural circulating water pump through a water pipe, and the natural circulating water pump is positioned in a water path of the natural circulating water liquid heat exchange coil; the natural circulating water liquid heat exchange coil is positioned in the milk heat exchange box 23;
the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is located in the cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; and a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9. The technical scheme of the invention has the following substantial technical effects and the realization process: the cooling scheme employed in the scheme of this example is as follows: the water circulation of the water tank is firstly used for cooling the milk to be consistent with the room temperature, and then the water-cooling heat exchange is carried out by adopting a water-cooling milk cooling system to cool the milk to the required temperature. Because the compressor of the water-cooled cow milk cooling system works, the electric power and the energy are consumed.
Example twelve: as a further improvement or a parallel scheme or an optional independent scheme, the natural circulation water liquid heat exchange coil and the liquid heat exchange coil are two independent coils. The technical scheme of the invention has the following substantial technical effects and the realization process: the two coils do not interact with each other and can therefore function independently.
Example thirteen: as a further improved scheme or a parallel scheme or an optional independent scheme, the natural circulating water liquid heat exchange coil and the liquid heat exchange coil are one coil, namely, the water inlet of the coil is connected with an external water tower or a water tank B1 or a chilled water source through a tee; the water outlet of the coil is connected with an external water tower or a water tank B1 or a chilled water outlet through a tee; an optional two-way cycle is implemented. The technical scheme of the invention has the following substantial technical effects and the realization process: this embodiment is a side-by-side embodiment of the twelfth embodiment and is characterized by the ability to reduce the coil layout.
And a fifth scheme:
example fourteen: as a further improvement, or a parallel solution or an optional independent solution, referring to fig. 10, the refrigeration system using a jacket-in-jacket structure is characterized in that the milk heat exchange tank 23 includes an inner water tank 231, an outer water tank layer 232 is disposed outside the inner water tank 231, and the inner water tank 231 is connected to an inner feed port 237, an inner chilled water inlet 238, an inner discharge port 239, and an inner chilled water outlet 2310; the inner chilled water outlet 2310 and the inner chilled water inlet 238 are connected with a water-cooled cow milk cooling system, the water-cooled cow milk cooling system comprises a water-cooled system, the water-cooled system is a compression type refrigerating system, the compression type refrigerating system is arranged on the base frame 21, the inner chilled water outlet 2310 and the inner chilled water outlet 2310 of the compression type refrigerating system are in butt joint with a liquid heat exchange coil, and the liquid heat exchange coil is positioned in the cow milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; the inner layer feed port 237 and the inner layer discharge port 239 jointly form an inlet part and an outlet part of the milk;
the outer layer 232 of water tank is still communicating outer return water mouth 233 and external water inlet 236, and outer return water mouth 233 and external water inlet 236 are passing through the external special water tank 234 of tube coupling to external return water mouth 233 has arranged external water pump 235 on the pipeline of external water inlet 236 connection. The technical scheme of the invention has the following substantial technical effects and the realization process: the water circulation of the water tank is firstly used for cooling the milk to be consistent with the room temperature, and then the water-cooling heat exchange is carried out by adopting a water-cooling milk cooling system to cool the milk to the required temperature. But the cooling mode does not adopt a coil pipe, but adopts a nested mode of water tanks to exchange heat. The method comprises the following specific steps:
firstly, pumping water into the outer layer 232 of the water tank by using an external water pump 235;
milk is put into the inner-layer water tank 231, and the milk and the normal-temperature water in the outer layer 232 of the water tank exchange heat firstly;
after the heat exchange is carried out to the normal temperature, the water in the outer layer 232 of the water tank is discharged, so that the influence of the water in the outer layer 232 of the water tank on the subsequent cooling is avoided;
and then, the compression type refrigerating system is utilized to exchange heat for the milk in the inner water tank 231, and the milk is reduced to be lower than the room temperature for preservation.
Example fifteen: as a further development or in a side-by-side or alternatively independent solution, the inner tank 231 is connected to the inner wall of the outer tank layer 232 by means of a pillar. The technical scheme of the invention has the following substantial technical effects and the realization process: the upright post is not drawn, and the structure can lead the structure of the whole device to be more stable.
Example sixteen: as a further improvement or a parallel solution or an alternative independent solution, the outer layer 232 and the inner layer 231 of the water tank share the same wall on one side, and the rest three sides are in a nested sandwich structure. The technical scheme of the invention has the following substantial technical effects and the realization process: one wall is shared, thus avoiding routing in the tank outer layer 232, further avoiding heat loss.
Example seventeen: as a further improvement or in parallel or alternatively independently, an interlayer underwater water supply pipe 2311 is arranged below the outer layer 232 of the water tank, and the interlayer underwater water supply pipe 2311 is connected with a blow-down water tank 2312. The technical scheme of the invention has the following substantial technical effects and the realization process: the expression "discharge water from the outer tank layer 232" in the fourteenth embodiment is preferably used for self-draining with the sandwiched underwater water pipe 2311.
Example eighteen: as a further alternative or in parallel or alternatively independently, the blowdown tank 2312 is piped to the water line from which the external water pump 235 is located. The technical scheme of the invention has the following substantial technical effects and the realization process: thereby allowing water to return to the external dedicated water tank 234.
Scheme six:
example nineteenth: as a further improvement or a parallel solution or an alternative independent solution, in combination with fig. 4, a water cooling system for reducing noise of a plant cooling system by using a water hood is characterized in that the cooling system comprises a base frame 21, and a lower water tank 22 is arranged below the base frame 21; the water cooling system is a compression type refrigeration system, the compression type refrigeration system is arranged on the basic frame 21, a chilled water outlet pipe A9 and a chilled water inlet pipe of the compression type refrigeration system are connected with a liquid heat exchange coil in a butt joint mode, and the liquid heat exchange coil is positioned in the milk heat exchange box 23; the milk heat exchange box 23 comprises an external circulating water pump A6, and the external circulating water pump A6 is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box 23; a cooling circulating pump A8 is arranged on the chilled water outlet pipe A9; the noise of the compressor operation of the compression refrigeration system can be absorbed and reduced by the underlying waterbox 22. The technical scheme of the invention has the following substantial technical effects and the realization process: the compressor can increase the noise and the vibrations in factory when work, and this patent sets up the water tank in the below, can absorb vibrations, and the noise reduction further can fall and make an uproar.
Example twenty: as a further development or in parallel or alternatively independently, the lower tank 22 can supply the compression refrigeration system with water.
Example twenty one: as a further development or in parallel or alternatively independently, a part of the milk heat exchange tank 23 is located in the lower tank 22 and is thus able to exchange heat with the water in the lower tank 22. The technical scheme of the invention has the following substantial technical effects and the realization process: can directly carry out contact heat exchange.
Example twenty two: as a further improvement, or a parallel scheme or an optional independent scheme, the chilled water outlet pipe a9 is a double-layer pipeline, the chilled water outlet pipe a9 includes a chilled water inlet pipe outer layer 261 and a chilled water inlet pipe inner layer 262, and the chilled water inlet pipe outer layer 261 is connected to the material inlet pipe 24, so that the material entering from the material inlet pipe 24 will exchange heat with the cold water in the chilled water inlet pipe inner layer 262 through the chilled water inlet pipe outer layer 261 at the pipeline stage. The technical scheme of the invention has the following substantial technical effects and the realization process: referring to fig. 6, compared with the prior art that the supply pipe for the frozen water is in contact with the outside, the present invention enables the pipeline to realize heat exchange during transportation, and further realizes full utilization of energy.
As further preferred: 1. the inner circulation box and the outer circulation box of the low-temperature ethylene glycol secondary refrigerant are adopted, and the inner circulation box cools the ethylene glycol to 0-5 ℃ or lower temperature by utilizing production gaps or off-peak electricity prices at night, so that cold energy is stored. 2. During production, the external circulation box and the pump jointly participate in the large circulation of the refrigerating fluid to cool the milk in the milk tank. 3. The air-cooled condensed milk all-in-one machine is adopted in the water-deficient area, and the water-cooled condensed milk all-in-one machine is adopted in the area with sufficient water source, so that the requirement of herdsmen in different areas on milk cooling is met. According to the heat transfer formula: Q-KA Δ t K heat transfer coefficient a: heat transfer area Δ t: a heat transfer temperature difference; the low temperature of the cooling fluid maintains a large temperature differential for heat exchange. The constant heat exchange temperature difference is ensured by adopting a countercurrent heat exchange method. Stainless steel or copper pipes are adopted, so that the heat conductivity coefficient is high, and the heat transfer coefficient is improved. When heat exchange is carried out between cow milk and refrigerating fluid, the tubular heat exchanger is provided with fins, so that the effective heat exchange area is increased. In summary, the following steps: under the situation that the country requires environmental protection and energy conservation, the cold storage technology is realized and a larger heat transfer temperature difference delta t is ensured under the condition that the heat exchange area is kept unchanged through the process design; and under a reasonable heat exchange mode, the heat transfer coefficient K is improved. The improvement of K and delta t realizes the rapid cooling of the milk and ensures the freshness of the raw materials.
As a further preference, the solution of the present patent has the following outstanding advantages: cooling by water cooling, wherein the refrigerating medium of the compressor is any one of a plurality of refrigerants such as water, Freon, glycol low-temperature secondary refrigerant and the like; the medium in the small circulation water tank A4 is glycol low-temperature secondary refrigerant, the small circulation water tank A4 is connected with the milk heat exchange box 23, the small circulation water tank A4 is connected with a compression type refrigerating system, the glycol can be cooled to 0-5 ℃ or lower temperature by utilizing production gaps or valley electricity price at night, and the small circulation water tank A4 realizes the storage of cold energy;
according to the requirements of the site, cooling is carried out at the same time or alternatively; meanwhile, the milk can be quickly cooled; alternative cooling is performed by using a cold source, for example, air cooling is adopted when the temperature is relatively low, and liquid cooling is adopted when the temperature is relatively high; the system can flexibly deal with various factory environments and weather environments;
firstly, cooling milk to be consistent with room temperature by using water circulation of a water tank, and then carrying out water-cooling heat exchange by adopting a water-cooled milk cooling system to reduce the milk to the required temperature; the cooling mode adopts a coil pipe, but adopts a water tank nesting mode to carry out heat exchange; the method comprises the following specific steps:
firstly, pumping water into the outer layer 232 of the water tank by using an external water pump 235;
milk is put into the inner-layer water tank 231, and the milk and the normal-temperature water in the outer layer 232 of the water tank exchange heat firstly;
after the heat exchange is carried out to the normal temperature, the water in the outer layer 232 of the water tank is discharged, so that the influence of the water in the outer layer 232 of the water tank on the subsequent cooling is avoided;
then, a compression type refrigerating system is utilized to exchange heat for the milk in the inner-layer water tank 231, the temperature is reduced to be lower than the room temperature, and the milk is preserved;
one sides of the outer layer 232 and the inner layer 231 of the water tank share the same wall, and the rest three sides are of a nested sandwich structure; one wall is shared, thus avoiding routing in the tank outer layer 232, further avoiding heat loss.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is to be limited to the embodiments described above.
Claims (2)
1. A condensing unit for cow milk refrigeration, its characterized in that, condensing unit is any one of following:
the first scheme is as follows: the air-cooled cow milk cooling system comprises an air-cooled system, wherein the air-cooled system is a compression type refrigerating system, a cold air outlet of the compression type refrigerating system is connected with a cold air inlet (19) of an evaporator (15), an air heat exchange coil is arranged in the evaporator (15), one side of the air heat exchange coil is the cold air inlet (19), the other side of the cold air inlet (19) is connected with a cold air outlet, and the cold air outlet is connected into the compression type refrigerating system; the evaporator (15) also comprises an evaporator cold water inlet (18) and an evaporator cold water outlet (8), and the evaporator cold water outlet (8) is connected with a circulating water pump (12) and a circulating water tank (11);
the second scheme is as follows: the water-cooled cow milk cooling system comprises a water cooling system, wherein the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on a basic frame (21), a chilled water outlet pipe (A9) and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is positioned in a cow milk heat exchange box (23); the milk heat exchange box (23) comprises an external circulating water pump (A6), and the external circulating water pump (A6) is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box (23); a cooling circulating pump (A8) is arranged on the chilled water outlet pipe (A9);
in the third scheme: the cooling system combines air cooling and water cooling, the cooling system comprises a milk heat exchange box (23), the milk heat exchange box (23) comprises an external circulating water pump (A6), and the external circulating water pump (A6) is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box (23);
the milk heat exchange box (23) is simultaneously connected with a water-cooled milk cooling system and an air-cooled milk cooling system; the water-cooled milk cooling system and the air-cooled milk cooling system can work together or alternatively work;
the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on a basic frame (21), a chilled water outlet pipe (A9) and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is located in a cow milk heat exchange box (23); a cooling circulating pump (A8) is arranged on the chilled water outlet pipe (A9);
the air-cooled cow milk cooling system comprises an air-cooled system, the air-cooled system is a compression type refrigerating system, a cold air outlet of the compression type refrigerating system is opposite to a cold air inlet (19) connected with the evaporator (15), an air heat exchange coil is arranged in the evaporator (15), one side of the air heat exchange coil is the cold air inlet (19), the other side of the cold air inlet (19) is opposite to an outlet connected with the cold air, and the outlet of the cold air is connected into the compression type refrigerating system; the evaporator (15) also comprises an evaporator cold water inlet (18) and an evaporator cold water outlet (8), and the evaporator cold water outlet (8) is connected with a circulating water pump (12) and a circulating water tank (11);
a fourth scheme: the water-cooled milk cooling system utilizes natural cold energy of the water tower, the milk heat exchange box (23) comprises two cooling systems which are respectively a water-cooled milk cooling system and a natural water cooling system; the natural water cooling system comprises an external water tower or water tank (B1), the external water tower or water tank (B1) is connected with a natural circulating water pump through a water pipe, and the natural circulating water pump is positioned in a water path of the natural circulating water liquid heat exchange coil; the natural circulating water liquid heat exchange coil is positioned in the milk heat exchange box (23);
the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on a basic frame (21), a chilled water outlet pipe (A9) and a chilled water inlet pipe of the compression type refrigerating system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is located in a cow milk heat exchange box (23); the milk heat exchange box (23) comprises an external circulating water pump (A6), and the external circulating water pump (A6) is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box (23); a cooling circulating pump (A8) is arranged on the chilled water outlet pipe (A9);
the fifth scheme is as follows: in the refrigeration system using the sleeve-in-sleeve structure, the milk heat exchange box (23) comprises an inner water tank (231), the outer part of the inner water tank (231) is a water tank outer layer (232), and an inner feed port (237), an inner chilled water inlet (238), an inner discharge port (239) and an inner chilled water outlet (2310) are connected to the inner water tank (231); the inner-layer chilled water outlet (2310) and the inner-layer chilled water inlet (238) are connected with a water-cooled cow milk cooling system, the water-cooled cow milk cooling system comprises a water cooling system, the water cooling system is a compression type refrigerating system, the compression type refrigerating system is arranged on a basic frame (21), the inner-layer chilled water outlet (2310) and the inner-layer chilled water outlet (2310) of the compression type refrigerating system are in butt joint with a liquid heat exchange coil, and the liquid heat exchange coil is positioned in a cow milk heat exchange box (23); the milk heat exchange box (23) comprises an external circulating water pump (A6), and the external circulating water pump (A6) is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box (23); the inner layer feed port (237) and the inner layer discharge port (239) jointly form an inlet part and an outlet part of the milk;
the outer layer (232) of the water tank is also communicated with an outer layer water return port (233) and an external water inlet (236), the outer layer water return port (233) and the external water inlet (236) are connected with an external special water tank (234) through a pipeline, and an external water pump (235) is arranged on a pipeline connecting the outer layer water return port (233) and the external water inlet (236);
the sixth scheme is as follows: the water cooling system utilizes the water cover to reduce the noise of the plant cooling system, and comprises a base frame (21), wherein a lower water tank (22) is arranged below the base frame (21); the water cooling system is a compression type refrigeration system, the compression type refrigeration system is arranged on a basic frame (21), a chilled water outlet pipe (A9) and a chilled water inlet pipe of the compression type refrigeration system are connected with a liquid heat exchange coil pipe in a butt joint mode, and the liquid heat exchange coil pipe is positioned in a milk heat exchange box (23); the milk heat exchange box (23) comprises an external circulating water pump (A6), and the external circulating water pump (A6) is positioned in a milk pipeline and can drive milk to circulate in the milk heat exchange box (23); a cooling circulating pump (A8) is arranged on the chilled water outlet pipe (A9); the noise of the compressor work of the compression type refrigerating system can be absorbed and reduced by the underlying water tank (22);
the lower water tank (22) can supply water to the compression type refrigeration system;
part of the milk heat exchange box (23) is positioned in the underlying water tank (22) and can exchange heat with water in the underlying water tank (22).
2. A condensing method of a condensing unit for milk refrigeration, characterized by using the condensing unit of claim 1;
cooling by water cooling, wherein the refrigerating medium of the compressor is any one of a plurality of refrigerants such as water, Freon, glycol low-temperature secondary refrigerant and the like; the medium in the small circulating water tank (A4) is glycol low-temperature secondary refrigerant and is connected with the milk heat exchange box (23), the small circulating water tank (A4) is connected with the compression type refrigeration system, the glycol can be cooled to 0-5 ℃ or lower temperature by utilizing production gaps or off-peak electricity price at night, and the small circulating water tank (A4) realizes the storage of cold energy;
according to the requirements of the site, cooling is carried out at the same time or alternatively; meanwhile, the milk can be quickly cooled; alternative cooling is performed by using a cold source, for example, air cooling is adopted when the temperature is relatively low, and liquid cooling is adopted when the temperature is relatively high; the system can flexibly deal with various factory environments and weather environments;
firstly, cooling milk to be consistent with room temperature by using water circulation of a water tank, and then carrying out water-cooling heat exchange by adopting a water-cooled milk cooling system to reduce the milk to the required temperature; the cooling mode adopts a coil pipe, but adopts a water tank nesting mode to carry out heat exchange; the method comprises the following specific steps:
firstly, an external water pump (235) is adopted to pump water into the outer layer (232) of the water tank;
milk is put into the inner-layer water tank (231), and the milk and the normal-temperature water in the outer layer (232) of the water tank exchange heat firstly; after the heat exchange is carried out to the normal temperature, the water in the outer layer (232) of the water tank is discharged, so that the influence of the water in the outer layer (232) of the water tank on the subsequent cooling is avoided;
then, a compression type refrigerating system is utilized to exchange heat for the milk in the inner water tank (231), and the milk is reduced to be lower than room temperature for preservation;
one sides of the outer layer (232) and the inner layer (231) of the water tank share the same wall, and the rest three sides are of a nested sandwich structure; one wall is shared, so that the pipeline can be prevented from running in the outer layer ()232 of the water tank, and further the heat loss can be prevented.
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| CN114485000A (en) * | 2021-12-24 | 2022-05-13 | 内蒙古蒙牛乳业（集团）股份有限公司 | Intelligent modular refrigeration system for cooling dairy products and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114485000A (en) * | 2021-12-24 | 2022-05-13 | 内蒙古蒙牛乳业（集团）股份有限公司 | Intelligent modular refrigeration system for cooling dairy products and control method thereof |
| CN114485000B (en) * | 2021-12-24 | 2023-11-14 | 内蒙古蒙牛乳业（集团）股份有限公司 | Intelligent modularized refrigerating system for cooling dairy products and control method thereof |
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