CN113273541A - Refrigeration equipment for sea cucumber seedling culture - Google Patents
Refrigeration equipment for sea cucumber seedling culture Download PDFInfo
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- CN113273541A CN113273541A CN202110822808.8A CN202110822808A CN113273541A CN 113273541 A CN113273541 A CN 113273541A CN 202110822808 A CN202110822808 A CN 202110822808A CN 113273541 A CN113273541 A CN 113273541A
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- pipeline
- screw compressor
- ammonia
- ice water
- cooling screw
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/06—Arrangements for heating or lighting in, or attached to, receptacles for live fish
- A01K63/065—Heating or cooling devices
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/047—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type
Abstract
The invention relates to refrigeration equipment for sea cucumber seedling culture, which comprises a first automatic liquid-cooling screw compressor unit, a second automatic liquid-cooling screw compressor unit, a first ice water plate exchanger unit and a second ice water plate exchanger unit, wherein corresponding ports of the first ice water plate exchanger unit and the second ice water plate exchanger unit are mutually communicated, corresponding ports of the first automatic liquid-cooling screw compressor unit and the second automatic liquid-cooling screw compressor unit are mutually communicated, and a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline are sequentially arranged between the ports of the first ice water plate exchanger unit and the second ice water plate exchanger unit and between the corresponding ports of the first automatic liquid-cooling screw compressor unit and the second automatic liquid-cooling screw compressor unit. The invention has the advantages that: the refrigeration efficiency is improved, the maintenance work is reduced, and the danger that the ammonia leakage of the evaporator affects the production is avoided.
Description
Technical Field
The invention relates to a refrigeration device for sea cucumber seedling culture, and relates to the field of refrigeration.
Background
The sea cucumber seedling and cultivation has the characteristics of short breeding period, high growth speed, high cultivation yield, high economic value and the like, and the sea cucumber is cultivated in the south and north coastal areas of China. The problems existing in the prior art are as follows: firstly, once ammonia is leaked by an evaporator of the refrigeration equipment, the seedling quality is influenced, and irrecoverable loss is brought to seedling production. Secondly, energy is wasted seriously, hundreds of tons of low-temperature seawater are added into a seedling raising water system every day and discharged into the sea at the same time in the process of raising the sea cucumber seedlings, so that a large amount of energy is wasted.
The invention discloses a sea cucumber seedling raising air source cold accumulation system, and discloses that an energy storage water tank is arranged near a sea cucumber seedling raising pool, a heat preservation and cold accumulation water chamber is arranged near the energy storage water tank, a sea cucumber heat pump unit is arranged between the heat preservation and cold accumulation water chamber and the sea cucumber seedling raising pool, the energy storage water tank and the heat preservation and cold accumulation water chamber are communicated through a circulating pipeline and are provided with a circulating water pump, the heat preservation and cold accumulation water chamber and the sea cucumber heat pump unit are communicated through a water supply pipeline and are provided with electric valves, and the sea cucumber heat pump unit is communicated with the sea cucumber seedling raising pool through a pipeline. The disadvantages are as follows: because structural design's drawback, in actual operation, can not solve the problem that the evaporimeter ammonia was revealed, have the potential safety hazard.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a refrigeration device for raising sea cucumber seedlings, and the technical scheme of the invention is as follows:
a refrigeration device for sea cucumber seedling culture comprises a first automatic liquid-cooling screw compressor unit, a second automatic liquid-cooling screw compressor unit, a first ice water plate exchanger unit and a second ice water plate exchanger unit, the corresponding ports of the first ice water plate exchanger unit and the second ice water plate exchanger unit are communicated with each other, the corresponding ports of the first automatic liquid cooling screw compressor unit and the second automatic liquid cooling screw compressor unit are communicated with each other, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline are sequentially arranged between the ports of the first ice water plate exchanger unit and the second ice water plate exchanger unit and the corresponding ports of the first automatic liquid cooling screw compressor unit and the second automatic liquid cooling screw compressor unit, a sixth pipeline is also arranged between the second ice water plate exchanger unit and the oil collector, between the automatic air separator and between the second ice water plate exchanger unit and the ammonia filling station; a seventh pipeline and an eighth pipeline are arranged between the first automatic liquid-cooling screw compressor unit and the ammonia vertical siphon liquid reservoir, an air outlet end is formed at one end of the second pipeline, a flow guide mechanism is arranged at the air outlet end of the second pipeline and comprises a flow guide plate and an arc-shaped cover plate, the flow guide plate is arranged on the periphery of the second pipeline and is in threaded connection with the second pipeline, and a sealing ring is arranged at the connection position of the flow guide plate and the second pipeline; the arc-shaped cover plate is fixedly arranged on the guide plate, a space is formed between the arc-shaped cover plate and the air outlet end of the second pipeline, and guide vanes are arranged on two sides of the arc-shaped cover plate; the first automatic liquid cooling screw compressor unit, the second automatic liquid cooling screw compressor unit and the steam cooling type condenser are communicated through a ninth pipeline, and the third pipeline is connected to the ninth pipeline; a tenth pipeline and an eleventh pipeline are further installed between the ammonia vertical siphon liquid receiver and the steam-cooled condenser, and the ammonia vertical siphon liquid receiver and the oil collector are also connected to the second pipeline; the oil collector is connected to the fourth pipeline, and the ammonia filling station and the automatic air separator are connected to the fifth pipeline through a twelfth pipeline; the automatic air separator, the steam-cooled condenser and the vertical siphon-type ammonia liquid receiver are connected together through a thirteenth pipeline; the ammonia filling station, the vertical siphon-type ammonia liquid receiver and the evaporative condenser are connected together through a fourteenth pipeline; the vertical siphon-type ammonia liquid reservoir and the emergency ammonia discharger are connected together through a fifteenth pipeline, and the fifteenth pipeline is communicated with the fourth pipeline; the emergency ammonia discharger is also provided with a pipeline communicated with tap water; all the electromagnetic valves, the first automatic liquid cooling screw compressor unit, the second automatic liquid cooling screw compressor unit, the evaporative cooling condenser, the ammonia vertical siphon liquid reservoir, the emergency ammonia discharger, the ammonia filling station, the automatic air separator, the oil collector, the first ice water plate exchanger unit and the second ice water plate exchanger unit are connected to the control box.
The first ice water plate replacing unit is one, and the second ice water plate replacing unit is two.
The number of the first automatic liquid cooling screw compressor units is two, the refrigerating capacity of each first automatic liquid cooling screw compressor unit is 612KW, the shaft power is 102KW, and the motor power is 125 KW; the second automatic liquid cooling screw compressor unit is one, the refrigerating capacity of the second automatic liquid cooling screw compressor unit is 1224KW, the shaft power is 204KW, and the motor power is 250 KW.
The invention has the advantages that: compared with the prior art, the refrigeration system has the advantages that the defects in the prior art are overcome by the aid of the matching of the steam-cooled condenser, the ammonia vertical siphon liquid reservoir, the emergency ammonia release device, the ammonia filling station, the automatic air separator, the oil collector, the first ice water plate unit, the second ice water plate unit, the first automatic liquid-cooled screw compressor unit and the second automatic liquid-cooled screw compressor unit, the refrigeration efficiency is improved, maintenance work is reduced, and particularly the danger that production is affected due to ammonia release of the evaporator is eliminated; the invention is safe, environment-friendly, energy-saving and efficient, and does not have the problem of elimination and replacement of the refrigeration working medium.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention.
Fig. 2 is a schematic structural view of the flow guide mechanism in fig. 1.
Reference numerals: 1. a first automatic liquid-cooled screw compressor unit; 2. a second automatic liquid-cooled screw compressor unit; 3. an evaporative condenser; 4. an ammonia vertical siphon reservoir; 5. an emergency ammonia drain; 6. an ammonia filling station; 7. an automatic air separator; 8. an oil collector; 9. the first ice water plate unit is replaced; 10. the second ice water plate unit is replaced; 11. a baffle; 12. an arc-shaped cover plate; 13. a guide vane; 1-1, a first pipeline; 1-2, a second pipeline; 1-3, a third pipeline; 1-4, a fourth pipeline; 1-5, a fifth pipeline; 1-6, a sixth pipeline; 1-7, a seventh pipeline; 1-8, an eighth pipeline; 1-9, ninth conduit; 1-10, tenth pipeline; 1-11, an eleventh conduit; 1-12, a twelfth pipeline; 1-13, a thirteenth conduit; 1-14, a fourteenth conduit; 1-15 and a fifteenth pipeline.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
Referring to fig. 1 and 2, the invention relates to a refrigeration device for raising sea cucumber seedlings, which comprises a first automatic liquid-cooling screw compressor unit 1, a second automatic liquid-cooling screw compressor unit 2, a first ice water plate exchanger unit 9 and a second ice water plate exchanger unit 10, wherein corresponding ports of the first ice water plate exchanger unit 9 and the second ice water plate exchanger unit 10 are communicated with each other, corresponding ports of the first automatic liquid-cooling screw compressor unit 1 and the second automatic liquid-cooling screw compressor unit 2 are communicated with each other, a first pipeline 1-1, a second pipeline 1-2, a third pipeline 1-3, a fourth pipeline 1-4 and a fifth pipeline 1-5 are sequentially arranged between the ports of the first ice water plate exchanger unit 9 and the second ice water plate exchanger unit 10 and the corresponding ports of the first automatic liquid-cooling screw compressor unit 1 and the second automatic liquid-cooling screw compressor unit 2, sixth pipelines 1-6 are also arranged between the second ice water plate exchanger unit 10 and the oil collector 8, between the automatic air separator 7 and between the second ice water plate exchanger unit and the ammonia filling station 6; a seventh pipeline 1-7 and an eighth pipeline 1-8 are arranged between the first automatic liquid cooling screw compressor unit 1 and the second automatic liquid cooling screw compressor unit 2 and the vertical ammonia siphon liquid receiver 4, one end of the second pipeline 1-2 forms an air outlet end, a flow guide mechanism is arranged at the air outlet end of the second pipeline 1-2, the flow guide mechanism comprises a flow guide plate 11 and an arc-shaped cover plate 12, the periphery of the second pipeline 1-2 is provided with the flow guide plate 11, the flow guide plate 11 is in threaded connection with the second pipeline 1-2, and a sealing ring is arranged at the connection part of the flow guide plate 11 and the second pipeline 1-2; the arc-shaped cover plate 12 is fixedly arranged on the guide plate 11, a space is formed between the arc-shaped cover plate 12 and the air outlet end of the second pipeline 1-2, and guide vanes 13 are arranged on two sides of the arc-shaped cover plate 12 to accelerate the flow of the gas; the first automatic liquid-cooling screw compressor unit 1 and the second automatic liquid-cooling screw compressor unit 2 are communicated with the steam-cooling type condenser 3 through ninth pipelines 1-9, and the third pipelines 1-3 are connected into the ninth pipelines 1-9; a tenth pipeline 1-10 and an eleventh pipeline 1-11 are further installed between the ammonia vertical siphon liquid receiver 4 and the evaporative cooling type condenser 3, and the ammonia vertical siphon liquid receiver 4 and the oil collector 8 are also connected to the second pipeline 1-2; the oil collector 8 is connected into the fourth pipeline 1-4, and the ammonia filling station 6 and the automatic air separator 7 are connected into the fifth pipeline 1-5 through the twelfth pipeline 1-12; the automatic air separator 7 is connected with the steam-cooled condenser 3 and the vertical siphon-type ammonia liquid receiver 4 through thirteenth pipelines 1-13; the ammonia filling station 6 is connected with the vertical siphon-type ammonia liquid receiver 4 and the steam-cooled condenser 3 through fourteenth pipelines 1-14; the vertical siphon-type ammonia liquid receiver 4 and the emergency ammonia discharger 5 are connected together through a fifteenth pipeline 1-15, and the fifteenth pipeline 1-15 is communicated with the fourth pipeline 1-4; the emergency ammonia discharger 5 is also provided with a pipeline communicated with tap water; the first pipeline 1-1 to the twelfth pipeline 1-12 are all provided with electromagnetic valves, and all the electromagnetic valves, the first automatic liquid cooling screw compressor unit 1, the second automatic liquid cooling screw compressor unit 2, the evaporative condenser 3, the vertical siphon-type ammonia liquid reservoir 4, the emergency ammonia drain device 5, the ammonia filling station 6, the automatic air separator 7, the oil collector 8, the first ice water plate exchanger unit 9 and the second ice water plate exchanger unit 10 are all connected to a control box.
The number of the first ice water plate replacing units 9 is one, and the number of the second ice water plate replacing units 10 is two.
The number of the first automatic liquid cooling screw compressor units 1 is two, the refrigerating capacity of each first automatic liquid cooling screw compressor unit 1 is 612KW, the shaft power is 102KW, and the motor power is 125 KW; the second automatic liquid-cooling screw compressor unit 2 is one, and the refrigerating capacity of the second automatic liquid-cooling screw compressor unit 2 is 1224KW, the shaft power is 204KW, and the motor power is 250 KW.
The working principle of the invention is as follows: in the evaporative condenser 3, seawater exchanges heat with refrigeration working medium ammonia, and the principle is that ammonia liquid with +2 ℃ (4.6 bar) is evaporated and changed from liquid state to gas state, gasification heat absorption is generated, heat in seawater is taken away, evaporated gaseous refrigerant ammonia gas is absorbed by the first automatic liquid cooling screw compressor unit 1 and the second automatic liquid cooling screw compressor unit 2, low-temperature low-pressure ammonia gas (+ 2 ℃, 4.6 bar) is compressed into high-temperature high-pressure ammonia gas (+ 80 ℃, 13.5 bar) through compression and is discharged into the evaporative condenser 3, the high-temperature high-pressure ammonia gas is condensed into high-temperature high-pressure ammonia liquid (+ 35 ℃, 13.5 bar) by the evaporative condenser 3, the working medium ammonia gas releases heat to the environment in the condensation process, is condensed into ammonia liquid, automatically flows into the ammonia vertical siphon liquid receiver 4 by gravity, is stored, and the ammonia liquid is delivered to the first ice water through the ammonia vertical liquid receiver 4 through throttling (the high-temperature high-pressure ammonia liquid is throttled into the low-temperature low-pressure ammonia liquid) And in the plate changing unit 9 and the second ice water plate changing unit 10, the whole circulation process is realized.
The emergency ammonia discharger 5 is mainly used for mixing ammonia liquid in the system with water in the device and discharging the mixture into an accident pool when the system has an accident (including disasters such as fire disasters). Preventing the ammonia liquid from leaking to cause poisoning of people or explosion in fire, etc.
The ammonia filling station 6 is used for filling the refrigerating medium for a system after the pressure leakage test, and has two filling modes: 1. a large amount of ammonia liquid is filled by being connected with a tank truck; 2. when a small amount of the liquid is filled, the liquid is filled by connecting an ammonia bottle.
The automatic air separator 7 is used for discharging non-condensable gas and preventing the excessive non-condensable gas from causing overhigh condensation pressure (a non-condensable gas generation way is that 1, lubricating oil in a system is carbonized due to high temperature in the compression process of a unit, 2, air is mixed in when the system is filled, 3, ambient air caused by leakage points in the system enters the system, and the like).
The oil collector 8 is used for collecting and discharging the lubricating oil mixed in the system, and the lubricating oil mixing process in the system comprises the following steps: high temperature high pressure refrigerant gas discharges to the oil branch and carries out work medium and oil's separation in-process and can't accomplish 100% separation, and few lubricating oil enters into the system along with refrigerant, because the density of oil is great than the density of ammonia work medium, accumulates in the bottom of auxiliary assembly usually, accumulates a period of time later and collects and discharges through the oil catcher.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A refrigeration device for sea cucumber seedling culture comprises a first automatic liquid-cooling screw compressor unit, a second automatic liquid-cooling screw compressor unit, a first ice water plate exchanger unit and a second ice water plate exchanger unit, the corresponding ports of the first ice water plate exchanger unit and the second ice water plate exchanger unit are communicated with each other, the corresponding ports of the first automatic liquid cooling screw compressor unit and the second automatic liquid cooling screw compressor unit are communicated with each other, it is characterized in that a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline are sequentially arranged between the ports of the first ice water plate exchanger unit and the second ice water plate exchanger unit and the corresponding ports of the first automatic liquid cooling screw compressor unit and the second automatic liquid cooling screw compressor unit, a sixth pipeline is also arranged between the second ice water plate exchanger unit and the oil collector, between the automatic air separator and between the second ice water plate exchanger unit and the ammonia filling station; a seventh pipeline and an eighth pipeline are arranged between the first automatic liquid-cooling screw compressor unit and the ammonia vertical siphon liquid reservoir, an air outlet end is formed at one end of the second pipeline, a flow guide mechanism is arranged at the air outlet end of the second pipeline and comprises a flow guide plate and an arc-shaped cover plate, the flow guide plate is arranged on the periphery of the second pipeline and is in threaded connection with the second pipeline, and a sealing ring is arranged at the connection position of the flow guide plate and the second pipeline; the arc-shaped cover plate is fixedly arranged on the guide plate, a space is formed between the arc-shaped cover plate and the air outlet end of the second pipeline, and guide vanes are arranged on two sides of the arc-shaped cover plate; the first automatic liquid cooling screw compressor unit, the second automatic liquid cooling screw compressor unit and the steam cooling type condenser are communicated through a ninth pipeline, and the third pipeline is connected to the ninth pipeline; a tenth pipeline and an eleventh pipeline are further installed between the ammonia vertical siphon liquid receiver and the steam-cooled condenser, and the ammonia vertical siphon liquid receiver and the oil collector are also connected to the second pipeline; the oil collector is connected to the fourth pipeline, and the ammonia filling station and the automatic air separator are connected to the fifth pipeline through a twelfth pipeline; the automatic air separator, the steam-cooled condenser and the vertical siphon-type ammonia liquid receiver are connected together through a thirteenth pipeline; the ammonia filling station, the vertical siphon-type ammonia liquid receiver and the evaporative condenser are connected together through a fourteenth pipeline; the vertical siphon-type ammonia liquid reservoir and the emergency ammonia discharger are connected together through a fifteenth pipeline, and the fifteenth pipeline is communicated with the fourth pipeline; the emergency ammonia discharger is also provided with a pipeline communicated with tap water; all the electromagnetic valves, the first automatic liquid cooling screw compressor unit, the second automatic liquid cooling screw compressor unit, the evaporative cooling condenser, the ammonia vertical siphon liquid reservoir, the emergency ammonia discharger, the ammonia filling station, the automatic air separator, the oil collector, the first ice water plate exchanger unit and the second ice water plate exchanger unit are connected to the control box.
2. The refrigeration equipment for raising sea cucumber seedlings according to claim 1, wherein the number of the first ice water plate replacing units is one, and the number of the second ice water plate replacing units is two.
3. The refrigeration equipment for raising sea cucumber seedlings according to claim 1 or 2, wherein the number of the first automatic liquid-cooling screw compressor units is two, the refrigerating capacity of each first automatic liquid-cooling screw compressor unit is 612KW, the shaft power is 102KW, and the motor power is 125 KW; the second automatic liquid cooling screw compressor unit is one, the refrigerating capacity of the second automatic liquid cooling screw compressor unit is 1224KW, the shaft power is 204KW, and the motor power is 250 KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110822808.8A CN113273541B (en) | 2021-07-21 | 2021-07-21 | Refrigeration equipment for sea cucumber seedling culture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110822808.8A CN113273541B (en) | 2021-07-21 | 2021-07-21 | Refrigeration equipment for sea cucumber seedling culture |
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| CN113273541A true CN113273541A (en) | 2021-08-20 |
| CN113273541B CN113273541B (en) | 2021-10-29 |
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| CN202110822808.8A Active CN113273541B (en) | 2021-07-21 | 2021-07-21 | Refrigeration equipment for sea cucumber seedling culture |
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