CN106744957A - A kind of pump pressure type dry-ice machine - Google Patents
A kind of pump pressure type dry-ice machine Download PDFInfo
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- CN106744957A CN106744957A CN201710154573.3A CN201710154573A CN106744957A CN 106744957 A CN106744957 A CN 106744957A CN 201710154573 A CN201710154573 A CN 201710154573A CN 106744957 A CN106744957 A CN 106744957A
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Abstract
A kind of pump pressure type dry-ice machine, including high-pressure pump, high-pressure curing room, recirculation cooler, high-pressure pump is connected with high-pressure curing room by conduit under fluid pressure, liquid carbon dioxide is pressed into high-pressure curing room by high-pressure pump, liquid carbon dioxide is promoted to shrink curing molding as dry ice in high-pressure curing chamber interior volume with the output pressure of high-pressure pump, high-pressure curing room is arranged in recirculation cooler, and removing liquid carbon dioxide compression with the heat exchanger in recirculation cooler is cured as the heat that dry ice is discharged.Dry ice yield of the present invention is high, invests smaller.
Description
Technical field
Device the present invention relates to prepare dry ice, is specifically related to a kind of direct by liquid carbon dioxide pressure using high-pressure pump
Contracting solidification prepares the device of dry ice.
Background technology
In being colourless, tasteless gas under normal temperature, molecular weight is 44 to carbon dioxide, and density is at standard conditions
1.977g/L, proportion is about 1.5 times of air；Solubility in water is reduced with the rising of temperature, with the rising of pressure
And increase, temperature is 0 DEG C, and when pressure is 0.1MPa, solubility is 1.79Ncm3/ g, and it is identical in temperature, and pressure is 1.0MPa
When, its solubility is 15.92Ncm3/ g, every volumes carbon dioxide of 100 volume water soluble 88 under 20 DEG C of normal pressures, carbon dioxide is dissolved in
A water part is with water reaction generation carbonic acid；The critical point temperature of carbon dioxide is 31.06 DEG C, and critical pressure is 7.382MPa, is faced
Boundary's density is 468kg/m3；Fusing point（Triple point）It it is -56.57 DEG C, triple point pressure is 0.416MPa；Boiling point is -78.45
DEG C (rise Huawei dry ice)；Work as CO2In -56.57 DEG C when, it is that three phase point i.e. gaseous state, liquid, solid-state coexist；When temperature is in
At 31.06 DEG C~-56.57 DEG C, CO2For gaseous state, liquid coexist；When temperature is in -56.57 DEG C~-78.45 DEG C, CO2It is gas
State, solid-state coexist.In atmospheric conditions, carbon dioxide can not exist in fluid form.At 20 DEG C, by carbon dioxide pressurization
It is to become colourless liquid to 5.73Mpa, is typically liquefied as colourless liquid, liquid two in 7.092MPa under normal temperature (70 atmospheric pressure)
Oxidation carbon density 1.101g/cm3, storage in steel cylinder is often compressed in, it is changed into solid in -56.6 DEG C, 0.527Mpa.Liquid two
The influence that the density of carbonoxide is stressed is little, and be influenced by temperature it is then larger, such as 31.0 DEG C when, density is 463.9kg/
m3, density is 1074.2kg/m at -30 DEG C.Volume is only about the 1/356 of atmospheric carbon dioxide after co 2 liquefaction, is solidified into
Volume is only gaseous about 1/764 after shape.Can congeal into drikold when liquid CO 2 evaporates or when cooling is pressurizeed,
" dry ice " is commonly called as, is a kind of cryogenic coolant, density is 1.56g/cm3.When liquid carbon dioxide decompression is evaporated rapidly, a part
Gasification heat absorption, another part quenching becomes to avenge shape solid, will avenge shape solid compressed, and as ice-like solid " dry ice ", dry ice exists
0.1-0.13MPa, -78.5 DEG C when can directly distil and become gas.
With the raising of social environment protective awareness, the application promoted such as CCS technologies of industrial carbon emission reduction technology, trapping
Carbon dioxide conversion is liquid carbon dioxide, and the storage-stable of substantial amounts of liquid carbon dioxide or application will turn into a new skill
Art problem, and it is then an effective outlet that liquid carbon dioxide is solidified into dry ice processed, dry ice is the carbon dioxide of curing molding,
Volume contraction is to the 1/356 of atmospheric carbon dioxide after co 2 liquefaction, and volume contraction is to gaseous 1/764 after curing molding.
Dry ice can directly rise the gas of Huawei's volume hundreds times because of its heat absorption, and noresidue, it is nontoxic, tasteless, non-ignitable and can sterile character,
Using increasingly extensive, the industries such as food and drink, food, chemical industry, medicine, health, industry, video display, meteorology and its cleaning skill are can be applied to
In art.
Currently, CO2Liquefaction and dry ice are prepared and can be divided into high-pressure process（8MPa）And middle-pressure process（1.6MPa~2.5MPa）, low pressure
Method（0.7MPa~0.9MPa）.High-pressure process can realize gas CO2Liquefy at normal temperatures, compressor is generally three stage compression or level Four
Compression, energy consumption is very big, and liquefy CO2Lower the temperature through throttling expansion again, operative liquid CO2Enter dry-ice machine after being converted into snow shape solid-state
Shaping prepares dry ice；Mesolow method can realize gas CO2In cryogenic conditions（Such as cryogenics）Lower liquefaction, then enter through throttling expansion
One step is lowered the temperature, operative liquid CO2After being converted into snow shape solid-state dry ice, compressor power consumption relatively high pressure are prepared into dry-ice machine shaping
Method is much lower.
Existing dry-ice machine is usually using high pressure or mesolow liquid CO2Throttling expansion cooling, make partially liq CO2It is solidifying
Form solid snow shape CO2, then, closely knit bulk or pelletized product is pressed into through plunger in dry ice forming machine.Generally, can be with
By liquid CO2In middle pressure（1.6MPa~2.5MPa）Or low pressure（0.7MPa~0.9MPa）Dry ice is introduced by auto feed valve down
The snow bucket of press, a little higher than triple point pressure of pressure in bucket（About 0.55MPa）；Feeding quantity is by Timer Controlling or according to snow bucket
Interior liquid level is adjusted.Throttling expansion step-down makes operative liquid CO2Vaporization, the cold steam of generation makes liquid by heat exchange
CO2Further cooling.When being cooled to triple point（-56.6℃）Hereinafter, when pressure drops to 0.518MPa, liquid CO2It is solidified into
Snow shape dry ice.Finally with press the snow shape CO for generating2It is pressed into dry ice lumps or particle.The liquid that traditional dry-ice machine passes through elevated pressures
Body segment stream vaporizing section solidification after be made dry ice, will liquid carbon dioxide throttling vaporization separate atmospheric carbon dioxide after, compression
The part snow shape carbon dioxide of heat release solidification can just obtain dry ice, wherein the amount of the carbon dioxide for losing is about the dry of acquisition
Two times of ice amount, dry ice yield is only 0.3~0.4.Existing dry ice structural establishment processed is complicated, and volume is big, invests larger, is produced into
This is also higher.
On the other hand, with the development of hydraulic technique, the low energy consumption high-pressure pump of 100MPa~500MPa is very ripe extensive
It is applied to the fields such as hydraulic pumping, Water Cutting, but the report of any research or practice is had no in dry ice preparation field, and CO2's
Physical property and three-phase diagram feature show CO2Compressible Phase Transformation Characteristic.How CO is utilized2Physical property and three-phase diagram
The compressible Phase Transformation Characteristic of display, developing a kind of smaller, dry ice yield more easy dry ice preparation facilities high of investing has in fact
The value on border.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of above-mentioned background technology, there is provided a kind of dry ice yield is high,
Invest less pump pressure type dry-ice machine.
The present invention solves the technical scheme that its technical problem uses, a kind of pump pressure type dry-ice machine, including high-pressure pump, high pressure
Curing room, recirculation cooler, high-pressure pump are connected with high-pressure curing room by conduit under fluid pressure, and high-pressure pump is by liquid carbon dioxide pressure
Enter high-pressure curing room, promote liquid carbon dioxide to shrink curing molding in high-pressure curing chamber interior volume with the output pressure of high-pressure pump
It is dry ice, high-pressure curing room is arranged in recirculation cooler, liquid carbon dioxide is removed with the heat exchanger in recirculation cooler
Compression is cured as the heat that dry ice is discharged.
Further, the high-pressure curing room includes pressurized tank, and the pressurized tank includes tank body, feed liquor control piper, temperature and pressure
Induction installation, gas exhaust inspecting pipeline, the first end cap；The first end is covered on tank body one end, the feed liquor control piper, temperature and pressure
Induction installation, gas exhaust inspecting pipeline are arranged at first end and cover, and are connected with pressurized tank；The temperature and pressure induction installation is used to survey
Amount pressure pressure inside the tank and temperature；The gas exhaust inspecting pipeline is used for air or CO in discharge pressure tank2Gas；It is described enter hydraulic control
Tubulation road is used to control the flow and pressure of the liquid carbon dioxide in press-in pressurized tank.
Further, anti-sticking die is provided with the pressurized tank, anti-sticking die is dry ice mould.
Further, the high-pressure curing room also includes the second end cap, and on tank body, the second end cap is located at anti-the second end cap
Sticking mould bottom, for picking and placeing anti-sticking die.
Further, the feed liquor control piper includes the first check valve, first pressure inductor, flowmeter and pipe insulation
Temperature regulating device, first check valve, first pressure inductor, flowmeter and pipe insulation temperature regulating device are arranged on conduit under fluid pressure
On, the pipe insulation temperature regulating device includes pipe insulating layer, the first temperature inductor and heater, and the pipe insulating layer sets
In the outer wall of conduit under fluid pressure, on conduit under fluid pressure, the heater is located in conduit under fluid pressure first temperature inductor, institute
Pipe insulation temperature regulating device is stated for preventing liquid carbon dioxide in conduit under fluid pressure from solidifying.
Further, the high-pressure curing room is vertical is arranged in recirculation cooler.
Further, the high-pressure curing room is horizontal is arranged in recirculation cooler.
Further, the recirculation cooler is also designed to jacket type cooler；The pressurized tank bag of the high-pressure curing room
Tank body is included, tank body is externally provided with shell body, and shell body is provided with external thermal insulation, and the tank body is high-pressure curing space, for containing
Liquid carbon dioxide simultaneously compresses solidification, and refrigerant circulation chuck is formed between the tank body and shell body, solid on the shell body
Surely refrigerant enters pipeline and refrigerant outlet pipes, the refrigerant enters pipeline and refrigerant outlet pipes and refrigerant
Circulation chuck connection.
Further, the refrigerant is provided with the second check valve into pipeline, and the refrigerant outlet pipes are provided with
Three check valves.
Further, electric-control system is additionally provided with, electric-control system is electrically connected with high-pressure pump, high-pressure curing room, recirculation cooler respectively
Connect.
Compared with prior art, advantages of the present invention is as follows：The carbon dioxide of liquid is directly sent into by high pressure with high-pressure pump
Curing room, is directly cured as fine and close dry ice, while to follow with the liquid high pressure that high-pressure pump is exported by the carbon dioxide compression of liquid
Ring cooler removes the compression heat that discharges of solidification and cools down dry ice；The present invention borrows ripe using the property of carbon dioxide
Relatively low energy consumption high-pressure hydraulic pump highly pressurised liquid conveying technology, directly by the carbon dioxide of liquid feeding high-pressure curing room
Compression is cured as fine and close dry ice, replaceable different
Anti-sticking die, makes dry ice be molded into different shape；Equipment overall structure is simple, invests smaller, ice making efficiency high, it is to avoid existing
Necessary to some dry-ice machines processed throttling expansion vaporization about 2/3rds carbon dioxide with solidify about 1/3rd carbon dioxide
The defect of dry ice processed, liquid carbon dioxide utilization rate almost all high is converted into dry ice, dry ice yield up to nearly 100%, energy consumption compared with
It is low, low production cost, good economy performance.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the high-pressure curing room of embodiment illustrated in fig. 1.
Fig. 3 is the structural representation of the embodiment of the present invention 2.
Fig. 4 is that the recirculation cooler of embodiment illustrated in fig. 3 is the structural representation of jacket type cooler.
Fig. 5 is the structural representation of the embodiment of the present invention 3.
In figure：1-high-pressure pump, 102-conduit under fluid pressure, 2-high-pressure curing room, 21-pressurized tank, 210-tank body, 211-
Feed liquor control piper, 211a-the first check valve, 211b-first pressure inductor, 211c-flowmeter, 211d-pipeline is protected
Control temp device, 211d1-pipe insulating layer, 211d2-the first temperature inductor, 211d3-heater, the sense of 212-temperature and pressure
Answer device, 212a-second pressure inductor, 212b-second temperature inductor, 213-gas exhaust inspecting pipeline, 213a-exhaust
Valve, 214-upper end cover, 215-bottom end cover, 214'-left end cap, 215'-right end cap, 22-anti-sticking die, 3-circulating cooling
Device, 301-heat exchanger, 302-shell body, 303-external thermal insulation, 304-refrigerant enters pipeline, and 304a-the second is single
To valve, 305-refrigerant outlet pipes, the check valves of 305a-the 3rd, 4-electric-control system.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention.
Embodiment 1
Reference picture 1, the present embodiment includes high-pressure pump 1, high-pressure curing room 2, recirculation cooler 3, high-pressure pump 1 and high-pressure curing room 2
It is connected by conduit under fluid pressure 102, liquid carbon dioxide is pressed into high-pressure curing room 2 by high-pressure pump 1, with the output pressure of high-pressure pump 1
Making every effort to promote makes liquid carbon dioxide shrink curing molding for dry ice in the inner volume of high-pressure curing room 2, and high-pressure curing room 2 is vertical to be arranged at
In recirculation cooler 3, dry ice is cured as with the removal liquid carbon dioxide compression of heat exchanger 301 in recirculation cooler 3 and is released
The heat put.
Reference picture 2, high-pressure curing room 2 includes pressurized tank 21 and anti-sticking die 22, and anti-sticking die 22 is placed on pressurized tank 21
Interior, anti-sticking die 22 is dry ice mould, and the shape of dry ice shaping is determined by anti-sticking die 22；The inwall of pressurized tank 21 is prevented
Viscous treatment, can prevent dry ice from adhering to, and high-pressure curing room 2 is vertical to be arranged in recirculation cooler 3, pressurized tank 21 include tank body 210,
Feed liquor control piper 211, temperature and pressure induction installation 212, gas exhaust inspecting pipeline 213, upper end cover 214, bottom end cover 215, upper end cover 214
Located at the top of tank body 210, bottom end cover 215 is located at the bottom of tank body 210, and located at the bottom of anti-sticking die 22, for picking and placeing anti-sticking to mould
Tool 22；Feed liquor control piper 211, temperature and pressure induction installation 212, gas exhaust inspecting pipeline 213 are arranged on upper end cover 214, and with pressure
Connection in power tank 21；Feed liquor control piper 211 is used to control the flow and pressure of the liquid carbon dioxide in press-in pressurized tank 21.
Feed liquor control piper 211 includes the first check valve 211a, first pressure inductor 211b, flowmeter 211c and pipeline
Insulation temperature regulating device 211d, the first check valve 211a, first pressure inductor 211b, flowmeter 211c and pipe insulation temperature control dress
Put 211d to be arranged on the conduit under fluid pressure 102 that high-pressure pump 1 is connected with upper end cover 214, pipe insulation temperature regulating device 211d includes pipe
Road heat-insulation layer 211d1, the first temperature inductor 211d2 and heater 211d3, pipe insulating layer 211d1 are located at conduit under fluid pressure 102
Outer wall, the first temperature inductor 211d2 on the conduit under fluid pressure 102, heater 211d3 in conduit under fluid pressure 102, pipeline
Insulation temperature regulating device 211d is used to prevent liquid carbon dioxide in conduit under fluid pressure 102 from solidifying.
Temperature and pressure induction installation 212 is used to measure pressure and temperature in pressurized tank 21, and temperature and pressure induction installation 212 includes the second pressure
Power inductor 212a and second temperature inductor 212b.
Gas exhaust inspecting pipeline 213 is used for air or CO in discharge pressure tank 212Gas, gas exhaust inspecting pipeline 213 includes row
Air valve 213a, gas exhaust inspecting pipeline 213 can also be used for being pressed into CO when bottom end cover 215 is opened2Gas is by the dry ice of curing molding
Outside extruder pressure tank 21.
Embodiment 2
Reference picture 3, the present embodiment is differed only in embodiment 1：High-pressure curing room 2 is horizontal to be arranged in recirculation cooler 3,
High-pressure curing room 2 includes pressurized tank 21 and anti-sticking die 22, and anti-sticking die 22 is placed in pressurized tank 21；The inwall of pressurized tank 21 enters
Release treatment is gone, can prevent dry ice from adhering to, high-pressure curing room 2 is horizontal to be arranged at when in recirculation cooler 3, and pressurized tank 21 is included
There are tank body 210, feed liquor control piper 211, temperature and pressure induction installation 212, gas exhaust inspecting pipeline 213, left end cap 214', right end cap
215', left end cap 214' are located at the left end of pressurized tank 21, and right end cap 215' is located at pressurized tank side, and located at the bottom of anti-sticking die 22
Portion, for picking and placeing anti-sticking die 22；Feed liquor control piper 211, temperature and pressure induction installation 212, gas exhaust inspecting pipeline 213 are arranged at a left side
Connected with pressurized tank 21 on end cap 214'；Feed liquor control piper 211 is used to control the liquid titanium dioxide in press-in pressurized tank 21
The flow and pressure of carbon, feed liquor control piper 211 include the first check valve 211a, first pressure inductor 211b, flowmeter
211c and pipe insulation temperature regulating device 211d, the first check valve 211a, first pressure inductor 211b, flowmeter 211c and pipeline
Insulation temperature regulating device 211d is arranged on conduit under fluid pressure 102, pipe insulation temperature regulating device 211d 211d1 containing pipe insulating layer, the
One temperature inductor 211d2 and heater 211d3 is used to prevent liquid carbon dioxide in input duct 211 from solidifying；Temperature and pressure sense
Device 212 is used to measure pressure and temperature in pressurized tank 21, and temperature and pressure induction installation 212 includes second pressure inductor 212a and the
Two temperature inductor 212b；Gas exhaust inspecting pipeline 213 is used for air or CO in discharge pressure tank 212Gas, gas exhaust inspecting pipeline
213 include air bleeding valve 213a, and gas exhaust inspecting pipeline 213 can also be used for being pressed into CO when right end cap 215' is opened2Gas will solidify
Outside the dry ice extruder pressure tank 21 of shaping.
Reference picture 4, recirculation cooler 3 is jacket type cooler.The pressurized tank 21 of high-pressure curing room 2 includes tank body 210, tank
Body 210 is externally provided with shell body 302, and shell body 302 is provided with external thermal insulation 303, and tank body 210 is high-pressure curing space, for containing
Dress liquid carbon dioxide simultaneously compresses solidification；Refrigerant circulation chuck is formed between tank body 210 and shell body 302, on shell body 302
Refrigerant into pipeline 304 and refrigerant outlet pipes 305 is fixed with, refrigerant enters pipeline 304 and refrigerant outlet pipes
305 connect with refrigerant circulation chuck；Refrigerant is provided with the second check valve 304a, refrigerant outlet pipes into pipeline 304
305 are provided with the 3rd check valve 305a.
Embodiment 3
Reference picture 5, the present embodiment is differed only in embodiment 1：Be additionally provided with electric-control system 4, electric-control system 4 respectively with high pressure
Pump 1, high-pressure curing room 2, recirculation cooler 3 are electrically connected；Electric-control system 4 is according to temperature, pressure and flow, time parameter adjustment system
The working condition of system is realized automatically controlling.
Pump pressure type dry-ice machine of the present invention, directly with high-pressure pump by the carbon dioxide feeding high-pressure curing room 2 of liquid, with high pressure
The carbon dioxide compression of liquid is directly cured as fine and close dry ice by the liquid high pressure of the output of pump 1, while being removed with recirculation cooler 3
The compression heat that discharges of solidification simultaneously cools down dry ice.
The present invention borrows the highly pressurised liquid conveying of the high-pressure hydraulic pump of ripe relatively low energy consumption using the property of carbon dioxide
Technology, is directly cured as fine and close dry ice by the carbon dioxide of liquid feeding high-pressure curing interior compression, replaceable different anti-sticking
Mould, makes dry ice be molded into different shape；Equipment overall structure is simple, invests smaller, ice making efficiency high, it is to avoid existing system is done
Necessary to ice maker the carbon dioxide of throttling expansion vaporization about 2/3rds with solidify about 1/3rd carbon dioxide dry ice
Defect, liquid carbon dioxide utilization rate almost all high is converted into dry ice, and dry ice yield is up to nearly 100%, and energy consumption is relatively low, production
Low cost, good economy performance.
Those skilled in the art can carry out various modifications and variations to the present invention, if these modifications and modification are at this
Within the scope of invention claim and its equivalent technologies, then these modifications and modification are also within protection scope of the present invention.
In the prior art that the content not described in detail in specification is known to the skilled person.
Claims (10)
1. a kind of pump pressure type dry-ice machine, it is characterised in that：Including high-pressure pump（1）, high-pressure curing room（2）, recirculation cooler（3）,
The high-pressure pump（1）With high-pressure curing room（2）By conduit under fluid pressure（102）It is connected, the high-pressure pump（1）By liquid titanium dioxide
Carbon pressure enters high-pressure curing room（2）, with high-pressure pump（1）Output pressure promote liquid carbon dioxide in high-pressure curing room（2）Interior body
It is dry ice, the high-pressure curing room that product shrinks curing molding（2）It is arranged at recirculation cooler（3）It is interior, with recirculation cooler（3）It is interior
Heat exchanger（301）Remove liquid carbon dioxide compression and be cured as the heat that dry ice is discharged.
2. pump pressure type dry-ice machine as claimed in claim 1, it is characterised in that：The high-pressure curing room（2）Including pressurized tank
（21）, pressurized tank（21）Including tank body（210）, feed liquor control piper（211）, temperature and pressure induction installation（212）, gas exhaust inspecting pipeline
（213）, the first end cap；The first end is covered on tank body（210）One end, the feed liquor control piper（211）, temperature and pressure sensing dress
Put（212）, gas exhaust inspecting pipeline（213）First end is arranged to cover, and and pressurized tank（21）Interior connection；The temperature and pressure sensing dress
Put（212）For measuring pressurized tank（21）Interior pressure and temperature；The gas exhaust inspecting pipeline（213）For discharge pressure tank（21）
Interior air or CO2Gas；The feed liquor control piper（211）For controlling press-in pressurized tank（21）Interior liquid carbon dioxide
Flow and pressure.
3. pump pressure type dry-ice machine as claimed in claim 2, it is characterised in that：The pressurized tank（21）Inside it is provided with anti-sticking die
（22）, anti-sticking die（22）It is dry ice mould.
4. pump pressure type dry-ice machine as claimed in claim 3, it is characterised in that：The high-pressure curing room（2）Also include the second end
Lid, the second end cap is located at tank body（210）On, the second end cap is located at anti-sticking die（22）Bottom, for picking and placeing anti-sticking die（22）.
5. pump pressure type dry-ice machine as claimed in claim 2 or claim 3, it is characterised in that：The feed liquor control piper（211）Comprising
One check valve（211a）, first pressure inductor（211b）, flowmeter（211c）And pipe insulation temperature regulating device（211d）, it is described
First check valve（211a）, first pressure inductor（211b）, flowmeter（211c）And pipe insulation temperature regulating device（211d）If
Put in conduit under fluid pressure（102）On, the pipe insulation temperature regulating device（211d）Including pipe insulating layer（211d1）, the first temperature
Inductor（211d2）And heater（211d3）, the pipe insulating layer（211d1）Located at conduit under fluid pressure（102）Outer wall, institute
State the first temperature inductor（211d2）Located at conduit under fluid pressure（102）On, the heater（211d3）Located at conduit under fluid pressure（102）
It is interior, the pipe insulation temperature regulating device（211d）For preventing conduit under fluid pressure（102）Interior liquid carbon dioxide solidification.
6. pump pressure type dry-ice machine as claimed in claim 1 or 2, it is characterised in that：The high-pressure curing room（2）It is vertical to be arranged at
Recirculation cooler（3）It is interior.
7. pump pressure type dry-ice machine as claimed in claim 1 or 2, it is characterised in that：The high-pressure curing room（2）It is horizontal to be arranged at
Recirculation cooler（3）It is interior.
8. pump pressure type dry-ice machine as claimed in claim 7, it is characterised in that：The recirculation cooler（3）For jacket type is cooled down
Device；The high-pressure curing room（2）Pressurized tank（21）Including tank body（210）, the tank body（210）It is externally provided with shell body（302）,
The shell body（302）It is provided with external thermal insulation（303）, the tank body（210）It is high-pressure curing space, for containing liquid two
Carbonoxide simultaneously compresses solidification, tank body（210）And shell body（302）Between formed refrigerant circulation chuck, the shell body（302）
On be fixed with refrigerant and enter pipeline（304）And refrigerant outlet pipes（305）, the refrigerant enters pipeline（304）And system
Cryogen discharge line（305）Connected with refrigerant circulation chuck.
9. pump pressure type dry-ice machine as claimed in claim 8, it is characterised in that：The refrigerant enters pipeline（304）It is provided with
Second check valve（304a）, the refrigerant outlet pipes（305）It is provided with the 3rd check valve（305a）.
10. pump pressure type dry-ice machine as claimed in claim 1 or 2, it is characterised in that：It is additionally provided with electric-control system（4）, electric-control system
（4）Respectively with high-pressure pump（1）, high-pressure curing room（2）, recirculation cooler（3）Electrical connection.
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| TWI723642B (en) * | 2019-11-22 | 2021-04-01 | 哈伯精密股份有限公司 | Cooling device |
| CN113154741A (en) * | 2021-05-19 | 2021-07-23 | 东莞市天卓干冰制品有限公司 | Carbon dioxide compression system for dry ice preparation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI723642B (en) * | 2019-11-22 | 2021-04-01 | 哈伯精密股份有限公司 | Cooling device |
| CN113154741A (en) * | 2021-05-19 | 2021-07-23 | 东莞市天卓干冰制品有限公司 | Carbon dioxide compression system for dry ice preparation |
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| CN106744957B (en) | 2019-07-09 |
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