CN106744958B - Cryogenic plunger type dry ice machine - Google Patents
Cryogenic plunger type dry ice machine Download PDFInfo
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- CN106744958B CN106744958B CN201710160755.1A CN201710160755A CN106744958B CN 106744958 B CN106744958 B CN 106744958B CN 201710160755 A CN201710160755 A CN 201710160755A CN 106744958 B CN106744958 B CN 106744958B
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Abstract
The utility model provides a cryogenic plunger formula dry ice machine, includes power hydraulic means, cryogenic plunger ice making device, electric control unit, power hydraulic means passes through hydraulic pressure pipeline and links to each other with cryogenic plunger ice making device, electric control unit is connected with power hydraulic means, cryogenic plunger ice making device electricity respectively. The invention can fully convert liquid carbon dioxide into dry ice, has low practical energy consumption and high productivity, and has good economical efficiency.
Description
Technical Field
The invention relates to a device for preparing dry ice, in particular to a device for preparing dry ice by pressing and solidifying liquid carbon dioxide by using a deep cooling technology and plunger hydraulic pressure.
Background
Carbon dioxide is colorless and odorless gas at normal temperature, has a molecular weight of 44, has a density of 1.977g/L under standard conditions, and has a specific gravity of about 1.5 times that of air; the solubility in water decreases with increasing temperature and increases with increasing pressure, and the solubility is 1.79Ncm at 0℃and 0.1MPa 3 Per g, and at the same temperature and pressure of 1.0MPa, the solubility was 15.92Ncm 3 Per 100 volumes of water-soluble 88 volumes of carbon dioxide at 20 ℃ and normal pressure, wherein a part of the carbon dioxide dissolved in water reacts with water to generate carbonic acid; the critical point temperature of the carbon dioxide is 31.06 ℃, the critical pressure is 7.382MPa, and the critical density is 468kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the Melting point (triple point temperature) is-56.57 ℃, triple point pressure is 0.416MPa; boiling point is-78.45 ℃ (sublimation to dry ice); when CO 2 At the temperature of minus 56.57 ℃, the three phases are in coexistence of gas, liquid and solid; when the temperature is between 31.06 ℃ and-56.57 ℃, CO 2 Is in the coexistence of gas and liquid; when the temperature is between minus 56.57 ℃ and minus 78.45 ℃, CO 2 Is in the coexistence of gas and solid. Under atmospheric conditions, carbon dioxide cannot exist in liquid form. Pressurizing carbon dioxide to 5.73Mpa at 20deg.C to obtain colorless liquid, liquefying at normal temperature 7.092MPa (70 atm) to obtain colorless liquid, and density of carbon dioxide liquid is 1.101g/cm 3 The mixture was stored in a steel cylinder under normal pressure, and was changed to a solid at-56.6℃and 0.527 MPa. The density of liquid carbon dioxide is slightly affected by pressure and greatly affected by temperature, for example, the density is 463.9kg/m at 31.0 DEG C 3 The density at-30 ℃ is 1074.2kg/m. The volume of the liquefied carbon dioxide is only about 1/356 of that of the gaseous carbon dioxide, and the volume of the liquefied carbon dioxide is only about gaseous1/764. The liquid carbon dioxide can be condensed into solid carbon dioxide during evaporation or pressurized cooling, commonly called dry ice, is a low-temperature refrigerant with the density of 1.56g/cm 3 . When the liquid carbon dioxide is decompressed and rapidly evaporated, one part of the liquid carbon dioxide is gasified and absorbs heat, the other part of the liquid carbon dioxide is quenched to become snow-like solid, the snow-like solid is compressed to become ice-like solid dry ice, and the dry ice can be directly sublimated to become gas at the temperature of between 0.1 and 0.13MPa and between minus 78.5 ℃.
With the improvement of social environmental protection consciousness, popularization of industrial carbon emission reduction technology, such as application of CCS technology, is realized, captured carbon dioxide is converted into liquid carbon dioxide, stable storage or application of a large amount of liquid carbon dioxide becomes a new technical problem, and solidifying the liquid carbon dioxide to prepare dry ice is an effective outlet, namely solidifying the carbon dioxide, wherein the volume of the solidified dry ice is contracted to 1/356 of that of gaseous carbon dioxide after the carbon dioxide is liquefied, and the volume of the solidified dry ice is contracted to 1/764 of that of gaseous carbon dioxide. The dry ice can be directly sublimated into gas with hundreds of times of volume due to heat absorption, has the characteristics of no residue, no toxicity, no smell, incombustibility and sterilization, is increasingly widely applied, and can be applied to the industries of catering, food, chemical industry, medicine, sanitation, industry, video, weather and the like and the cleaning technology thereof.
Currently, CO 2 The liquefaction and dry ice preparation can be classified into a high pressure method (8 MPa), a medium pressure method (1.6 MPa to 2.5 MPa) and a low pressure method (0.7 MPa to 0.9 MPa). High pressure method can realize gas CO 2 Liquefying at normal temperature, the compressor is generally three-stage compression or four-stage compression, the energy consumption is very high, and CO is liquefied 2 Then the temperature is reduced by throttling expansion, and partial liquid CO 2 After being converted into snow solid state, the snow solid state enters a dry ice machine for molding to prepare dry ice; the medium-low pressure method can realize gas CO 2 Liquefying under low temperature (such as cryogenic technology), further cooling by throttle expansion, and partially liquefying CO 2 After being converted into snow solid state, the snow solid state is sent into a dry ice machine to be molded to prepare dry ice, and the power consumption of a compressor is much lower than that of a high-pressure method.
The prior ice drier generally utilizes high-pressure or medium-low-pressure liquid CO 2 Is throttled, expanded and cooled to enable partial liquid CO 2 Is condensed into solid snow-like CO 2 Then, forming in dry iceThe inside of the machine is pressed into a compact block or granular product by a plunger. In general, liquid CO may be used 2 Introducing into a snow barrel of a dry ice pressing machine through an automatic feeding valve under medium pressure (1.6-2.5 MPa) or low pressure (0.7-0.9 MPa), wherein the pressure in the barrel is slightly higher than the three-phase pressure (about 0.55 MPa); the feeding amount is controlled by a timer or is regulated according to the height of the liquid level in the snow barrel. Throttling, expanding and depressurizing to enable partial liquid CO 2 Vaporization, the cold steam produced causes liquid CO by heat exchange 2 And further cooling. When the temperature is cooled to be below the triple point temperature (-56.6 ℃) and the pressure is reduced to 0.518MPa, the liquid CO 2 Solidifying into snow-like dry ice. Finally, the generated snow-like CO is pressed by a press 2 Pressed into dry ice cubes or granules. The traditional ice drier is manufactured into dry ice after being solidified through a liquid throttling vaporization part with higher pressure, namely, after liquid carbon dioxide throttles and vaporizes to separate gaseous carbon dioxide, the partial snow-like carbon dioxide solidified by heat release is compressed to obtain the dry ice, wherein the amount of the lost carbon dioxide gas is about twice the amount of the obtained dry ice, and the yield of the dry ice is only 0.3-0.4. The existing dry ice making mechanism has complex equipment, large volume, large investment and high production cost.
On the other hand, with the development of hydraulic technology, hydraulic ram technology has been mature and popular in pumping concrete, mortar and the like, but is only used for simple compaction and molding of snow-like dry ice cured through throttle expansion in the dry ice preparation field, no report is seen on any research or practice for directly cold pressing liquid carbon dioxide to prepare dry ice, and CO 2 Physical properties and three-phase diagram characteristics of (C) show CO 2 Is characterized by a compressible phase change. How to utilize CO 2 The development of a dry ice preparation device capable of completely converting liquid carbon dioxide into dry ice has practical value due to the physical properties and the compressible phase change characteristics shown by the three-phase diagram.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the background technology and providing a deep-cooling plunger type ice dryer capable of completely converting liquid carbon dioxide into solid dry ice.
The technical scheme adopted by the invention for solving the technical problems is that the deep cooling plunger type dry ice machine comprises a power hydraulic device, a deep cooling plunger type ice making device and an electric control device, wherein the power hydraulic device is connected with the deep cooling plunger type ice making device through a hydraulic pipeline, and the electric control device is respectively and electrically connected with the power hydraulic device and the deep cooling plunger type ice making device.
Further, the cryogenic plunger ice making device includes a cooler, a plunger former, the plunger former being secured in the cooler.
Further, a bracket is provided, and the cooler and the plunger former are mounted on the bracket.
Further, the plunger former comprises a hydraulic oil cylinder, a plunger barrel, a piston, a pressure head, a die head, a liquid inlet pipeline, an exhaust pipeline and a pressure gauge, wherein the piston, the pressure head and the die head are sequentially arranged in the plunger barrel, the hydraulic oil cylinder is connected with the piston in the plunger barrel, the piston is connected with the pressure head, the piston and the pressure head can slide up and down in the plunger barrel, the die head is fixed at the end part of the plunger barrel, and a cavity with changeable volume is formed between the pressure head and the die head; the liquid inlet pipeline, the exhaust pipeline and the pressure gauge are arranged on the cylinder body of the plunger cylinder and are communicated with the inside of the plunger cylinder; the liquid inlet pipeline is communicated with the exhaust pipeline.
Further, the liquid inlet pipeline comprises a liquid inlet one-way valve, a flowmeter and a liquid inlet pipeline, wherein the liquid one-way valve and the flowmeter are arranged on the liquid inlet pipeline.
Further, the exhaust pipeline comprises an exhaust one-way valve, an air pump, an air supply pipeline and a regulating valve, and the exhaust one-way valve, the air pump and the regulating valve are arranged on the air supply pipeline; the air supply pipeline is communicated with the liquid inlet pipeline.
Further, the cooler is a jacket cooler, the jacket cooler uses a cylinder body of a plunger cylinder as an inner shell, an outer shell is arranged outside the inner shell, an outer heat insulation layer is arranged outside the outer shell, a cryogenic agent circulating jacket is formed between the inner shell and the outer shell, a cryogenic agent inlet pipeline and a cryogenic agent outlet pipeline are arranged on the outer shell, the cryogenic agent inlet pipeline and the cryogenic agent outlet pipeline are communicated with the cryogenic agent circulating jacket, a cryogenic agent inlet check valve is arranged on the cryogenic agent inlet pipeline, and a cryogenic agent outlet check valve is arranged on the cryogenic agent outlet pipeline.
Further, the number of the plunger formers is two, the coolers are cooling boxes, the two plunger formers are fixed in the cooling boxes side by side, a distribution valve is further arranged, and an exhaust pipeline and a liquid inlet pipeline of each plunger former are connected with the distribution valve.
Further, a support is also provided, and the plunger former and the cooling box are arranged on the support.
Compared with the prior art, the invention has the following advantages: the liquid carbon dioxide can be completely converted into dry ice by utilizing the phase change characteristic of the carbon dioxide under the synchronous change of temperature and pressure and the thermodynamic effect thereof, and the method has the advantages of low actual energy consumption, high productivity and good economical efficiency.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of embodiment 2 of the present invention.
In the figure: 1-power hydraulic device, 102-hydraulic pipeline, 2-cryogenic plunger ice making device, 21-jacket cooler, 210-coolant circulation jacket, 211-outer shell, 212-outer insulation layer, 213-cryogenic agent inlet pipeline, 213 a-check valve, 214-cryogenic agent outlet pipeline, 22-plunger former, 220-chamber, 221-hydraulic cylinder, 222-plunger cylinder, 223-piston, 224-pressure head, 225-die head, 226-liquid inlet pipeline, 226 a-liquid inlet check valve, 226 b-flowmeter, 226 c-liquid inlet pipeline, 227-air outlet pipeline, 227 a-air outlet check valve, 227 b-air pump, 227 c-air supply pipeline, 227 d-regulating valve, 227 e-distribution valve, 228-pressure gauge, 23-bracket, 3-electric control device.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and specific examples.
Example 1
Referring to fig. 1, the embodiment is a cryogenic plunger type dry ice machine, which comprises a power hydraulic device 1, a cryogenic plunger type ice making device 2 and an electric control device 3, wherein the power hydraulic device 1 is connected with the cryogenic plunger type ice making device 2 through a hydraulic pipeline 102, and the electric control device 3 is respectively electrically connected with the power hydraulic device 1 and the cryogenic plunger type ice making device 2.
The power hydraulic device 1 is a well-known hydraulic driving device and comprises a motor, a hydraulic pump, a distributor and a hydraulic pipeline, and the power hydraulic device 1 provides hydraulic power for a hydraulic cylinder 221 of the cryogenic plunger ice making device 2.
The electric control device 3 is an electric control device of a well-known hydraulic driving device, and the electric control device 3 automatically controls the working conditions of the power hydraulic device 1 and the cryogenic plunger ice making device 2 to operate according to the set parameters such as flow, pressure, temperature and the like of the cryogenic ice making device 2.
The cryogenic plunger ice making device 2 includes a jacket cooler 21, a plunger shaper 22, and a bracket 23, the jacket cooler 21 and the plunger shaper 22 being mounted on the bracket 23, the plunger shaper 22 being fixed in the jacket cooler 21.
Plunger former 22 includes hydraulic ram 221, ram barrel 222, piston 223, ram 224, die 225, feed line 226, vent line 227, pressure gauge 228,
piston 223, ram 224 and die 225 are disposed in sequence from top to bottom within plunger barrel 222,
the plunger cylinder 222 is fixed on the bracket 23, the hydraulic oil cylinder 221 is connected with the piston 223 in the plunger cylinder 222, the piston 223 is connected with the pressure head 224, the piston 223 and the pressure head 224 can slide up and down in the plunger cylinder 222, the die head 225 is fixed on the lower end part of the plunger cylinder 222, and a cavity 220 with changeable volume is formed between the pressure head 224 and the die head 225; a liquid inlet pipeline 226, a gas outlet pipeline 227 and a pressure gauge 228 are arranged on the cylinder body of the plunger cylinder 222 and are communicated with the inside of the plunger cylinder 222.
The liquid inlet pipe 226 comprises a liquid inlet check valve 226a, a flow meter 226b and a liquid inlet pipe 226c, wherein the liquid inlet check valve 226a and the flow meter 226b are arranged on the liquid inlet pipe 226 c.
The exhaust pipeline 227 comprises an exhaust one-way valve 227a, an air pump 227b, an air supply pipeline 227c and a regulating valve 227d, and the exhaust one-way valve 227a, the air pump 227b and the regulating valve 227d are arranged on the air supply pipeline 227 c; the air supply pipe 227c communicates with the liquid supply pipe 226 c.
The exhaust pipeline 227 is used for adjusting the gasification and solidification speed of the liquid carbon dioxide in the cavity 220, and under the control of the electric control device 3, the carbon dioxide gas pumped and discharged by the air pump 227b is sent to the liquid inlet pipeline 226 through the air supply pipeline 227c and the regulating valve 227d, and circulated into the cavity 220 of the plunger cylinder 222 to accelerate solidification of the liquid carbon dioxide.
The jacket cooler 21 uses the cylinder body of the plunger cylinder 222 as an inner shell, an outer shell 211 is arranged outside the inner shell 211, an outer insulating layer 212 is arranged outside the outer shell 211, a cryogenic agent circulating jacket 210 is formed between the inner shell and the outer shell 211, a cryogenic agent inlet pipeline 213 and a cryogenic agent outlet pipeline 214 are arranged on the outer shell 211, the cryogenic agent inlet pipeline 213 and the cryogenic agent outlet pipeline 214 are communicated with the cryogenic agent circulating jacket 210, a cryogenic agent inlet check valve 213a is arranged on the cryogenic agent inlet pipeline 213, and a cryogenic agent outlet check valve 214a is arranged on the cryogenic agent outlet pipeline 214.
Example 2
Referring to fig. 2, the embodiment is a double-cylinder cryogenic plunger type dry ice machine, which comprises a power hydraulic device 1, a cryogenic plunger type ice making device 2 and an electric control device 3, wherein the power hydraulic device 1 is connected with the cryogenic plunger type ice making device 2 through a hydraulic pipeline 102, and the electric control device 3 is respectively electrically connected with the power hydraulic device 1 and the cryogenic plunger type ice making device 2.
The cryogenic plunger ice making device 2 comprises a cooling box 21', two plunger formers 22, wherein the two plunger formers 22 are fixed in the cooling box 21' side by side, and the plunger formers 22 and the cooling box 21' are arranged on a bracket 23; each plunger former 22 comprises a hydraulic cylinder 221, a plunger cylinder 222, a piston 223, a pressure head 224, a die head 225, a liquid inlet pipeline 226, an exhaust pipeline 227 and a pressure gauge 228, wherein the piston 223, the pressure head 224 and the die head 225 are sequentially arranged in the plunger cylinder 222 from bottom to top, the plunger cylinder 222 is fixed on a bracket 23, the hydraulic cylinder 221 is connected with the piston 223 in the plunger cylinder 222, the piston 223 is connected with the pressure head 224, the piston 223 and the pressure head 224 can slide up and down in the plunger cylinder 222, the die head 225 is fixed at the upper end part of the plunger cylinder 222, and a cavity 220 with variable volume is formed between the pressure head 224 and the die head 225; a liquid inlet pipeline 226, a gas outlet pipeline 227 and a pressure gauge 228 are arranged on the cylinder body of the plunger cylinder 222 and are communicated with the inside of the plunger cylinder 222.
The liquid inlet pipe 226 comprises a liquid inlet check valve 226a, a flow meter 226b and a liquid inlet pipe 226c, wherein the liquid inlet check valve 226a and the flow meter 226b are arranged on the liquid inlet pipe 226 c.
The exhaust pipeline 227 comprises an exhaust check valve 227a, an air pump 227b, a regulating valve 227d, a distributing valve 227e and an air supply pipeline 227c, and the exhaust check valve 227a, the air pump 227b, the regulating valve 227d and the distributing valve 227e are arranged on the air supply pipeline 227 c; the exhaust line 227 and the feed line 226 of each plunger former 22 are connected to a distribution valve 227e, the distribution valve 227e being used to distribute the amount of carbon dioxide entering each feed line 226.
The exhaust pipeline 227 is used for adjusting the gasification and solidification speed of the liquid carbon dioxide in the cavity 220 of the plunger cylinder 222, and under the control of the electric control device 3, the carbon dioxide sucked and exhausted by the air pump 227b is sent to the liquid inlet pipeline 226 through the air supply pipeline 227c, the regulating valve 227d and the distributing valve 227d, and circulated into the cavity 220 of the plunger cylinder 222 to accelerate solidification of the liquid carbon dioxide.
Carbon dioxide gas sucked and discharged through the exhaust pipeline 227 is sent into the liquid inlet pipeline 226c through the one-way valve 227a, the air pump 227b, the air supply pipeline 227c and the distribution valve 227e under the control of the electric control device 3, and circulated into the cavity 220 of the plunger cylinder 222 to prepare dry ice.
The invention relates to a cryogenic plunger type ice dryer, which utilizes the phase change characteristic of carbon dioxide under the synchronous change of temperature and pressure and the thermodynamic effect thereof, liquid carbon dioxide is metered into a cavity 220 of a plunger cylinder 222 under continuous cooling through a flowmeter 226b, the vaporization and solidification speed of the liquid carbon dioxide in the cavity 220 of the plunger cylinder 222 is regulated by the suction of an air pump 227b, the sucked gaseous carbon dioxide is sent into a liquid inlet pipeline 226c, is sent into the cavity 220 of the plunger cylinder 222 through the liquid pipeline 226c, is circularly converted into solid carbon dioxide in the cavity 220 of the plunger cylinder 222, and the system is automatically controlled by an electric control device 3 to fully solidify and press the liquid carbon dioxide into dry ice. The invention can fully convert liquid carbon dioxide into dry ice, has low practical energy consumption and high productivity, and has good economical efficiency.
Various modifications and variations of the present invention may be made by those skilled in the art, and, provided that they are within the scope of the appended claims and their equivalents, they are also within the scope of the present invention.
What is not described in detail in the specification is prior art known to those skilled in the art.
Claims (4)
1. A cryogenic plunger type dry ice machine is characterized in that: the device comprises a power hydraulic device (1), a cryogenic plunger ice making device (2) and an electric control device (3), wherein the power hydraulic device (1) is connected with the cryogenic plunger ice making device (2) through a hydraulic pipeline (102), and the electric control device (3) is electrically connected with the power hydraulic device (1) and the cryogenic plunger ice making device (2) respectively; the cryogenic plunger ice making device (2) comprises a cooler and a plunger shaper (22), wherein the plunger shaper (22) is fixed in the cooler; the plunger former (22) comprises a hydraulic cylinder (221), a plunger cylinder (222), a piston (223), a pressure head (224), a die head (225), a liquid inlet pipeline (226), an exhaust pipeline (227) and a pressure gauge (228), wherein the piston (223), the pressure head (224) and the die head (225) are sequentially arranged in the plunger cylinder (222), the hydraulic cylinder (221) is connected with the piston (223) in the plunger cylinder (222), the piston (223) is connected with the pressure head (224), the piston (223) and the pressure head (224) can slide up and down in the plunger cylinder (222), the die head (225) is fixed at the end part of the plunger cylinder (222), and a cavity (220) with variable volume is formed between the pressure head (224) and the die head (225); the liquid inlet pipeline (226), the exhaust pipeline (227) and the pressure gauge (228) are arranged on the cylinder body of the plunger cylinder (222) and are communicated with the inside of the plunger cylinder (222); the liquid inlet pipeline (226) is communicated with the exhaust pipeline (227); the liquid inlet pipeline (226) comprises a liquid inlet one-way valve (226 a), a flowmeter (226 b) and a liquid inlet pipeline (226 c), and the liquid one-way valve (226 a) and the flowmeter (226 b) are arranged on the liquid inlet pipeline (226 c); the exhaust pipeline (227) comprises an exhaust one-way valve (227 a), an air pump (227 b), an air supply pipeline (227 c) and a regulating valve (227 d), and the exhaust one-way valve (227 a), the air pump (227 b) and the regulating valve (227 d) are arranged on the air supply pipeline (227 c); the air supply pipeline (227 c) is communicated with the liquid inlet pipeline (226 c); the cooler is a jacket cooler (21), the jacket cooler (21) takes a cylinder body of a plunger cylinder (222) as an inner shell, an outer shell (211) is arranged outside the inner shell, an outer insulating layer (212) is arranged outside the outer shell (211), a cryogenic agent circulation jacket (210) is formed between the inner shell and the outer shell (211), a cryogenic agent inlet pipeline (213) and a cryogenic agent outlet pipeline (214) are arranged on the outer shell (211), the cryogenic agent inlet pipeline (213) and the cryogenic agent outlet pipeline (214) are communicated with the cryogenic agent circulation jacket (210), a cryogenic agent inlet check valve (213 a) is arranged on the cryogenic agent inlet pipeline (213), and a cryogenic agent outlet check valve (214 a) is arranged on the cryogenic agent outlet pipeline (214).
2. The cryogenic plunger ice dryer of claim 1, wherein: a bracket (23) is also provided, and the cooler and the plunger former (22) are mounted on the bracket (23).
3. The cryogenic plunger ice dryer of claim 2, wherein: the number of the plunger formers (22) is two, the coolers are cooling boxes (21 '), the two plunger formers (22) are fixed in the cooling boxes (21') side by side, a regulating valve (227 d) is further arranged, and an exhaust pipeline (227) and a liquid inlet pipeline (226) of each plunger former (22) are connected with a distributing valve (227 e).
4. The ice-drying machine of claim 3, wherein: a bracket (23) is also provided, and the plunger former (22) and the cooling box (21') are arranged on the bracket (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160755.1A CN106744958B (en) | 2017-03-17 | 2017-03-17 | Cryogenic plunger type dry ice machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710160755.1A CN106744958B (en) | 2017-03-17 | 2017-03-17 | Cryogenic plunger type dry ice machine |
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| CN106744958A CN106744958A (en) | 2017-05-31 |
| CN106744958B true CN106744958B (en) | 2023-09-19 |
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| CN109432661B (en) * | 2018-11-09 | 2020-07-28 | 河北鑫隆安全技术有限公司 | Multifunctional smoke-discharging fire-extinguishing device for fire fighting |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA326535A (en) * | 1932-10-04 | Luther Jones Charles | Solid carbon dioxide making apparatus | |
| CN2539946Y (en) * | 2002-04-08 | 2003-03-12 | 朱行郎 | Deep cold high efficient dry-ice machine |
| CN101670924A (en) * | 2009-09-16 | 2010-03-17 | 烟台冰轮股份有限公司 | Movable energy-saving differential pressure precooling device |
| WO2011035776A2 (en) * | 2009-09-24 | 2011-03-31 | Jens Werner Kipp | Method for producing dry ice without or with considerably reduced losses caused by the formation of gaseous carbon dioxide |
| CN103288085A (en) * | 2013-04-16 | 2013-09-11 | 杨中维 | Dry ice generator using cold energy produced in vaporization of cryogenic liquid |
| CN203478770U (en) * | 2013-10-15 | 2014-03-12 | 迪普干冰制造(大连)有限公司 | Double-cylinder dry ice block manufacturing machine |
| CN104236252A (en) * | 2014-08-27 | 2014-12-24 | 华南理工大学 | Method and device for preparing liquid CO2 (carbon diode) by cold energy of LNG (liquefied natural gas) |
| CN106082218A (en) * | 2016-08-05 | 2016-11-09 | 廊坊市尚奇燃气技术有限责任公司 | Prepare the device of dry ice |
| CN106468201A (en) * | 2015-08-17 | 2017-03-01 | 浙江福爱电子有限公司 | A kind of hot environment liquid injection apparatus |
-
2017
- 2017-03-17 CN CN201710160755.1A patent/CN106744958B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA326535A (en) * | 1932-10-04 | Luther Jones Charles | Solid carbon dioxide making apparatus | |
| CN2539946Y (en) * | 2002-04-08 | 2003-03-12 | 朱行郎 | Deep cold high efficient dry-ice machine |
| CN101670924A (en) * | 2009-09-16 | 2010-03-17 | 烟台冰轮股份有限公司 | Movable energy-saving differential pressure precooling device |
| WO2011035776A2 (en) * | 2009-09-24 | 2011-03-31 | Jens Werner Kipp | Method for producing dry ice without or with considerably reduced losses caused by the formation of gaseous carbon dioxide |
| CN103288085A (en) * | 2013-04-16 | 2013-09-11 | 杨中维 | Dry ice generator using cold energy produced in vaporization of cryogenic liquid |
| CN203478770U (en) * | 2013-10-15 | 2014-03-12 | 迪普干冰制造(大连)有限公司 | Double-cylinder dry ice block manufacturing machine |
| CN104236252A (en) * | 2014-08-27 | 2014-12-24 | 华南理工大学 | Method and device for preparing liquid CO2 (carbon diode) by cold energy of LNG (liquefied natural gas) |
| CN106468201A (en) * | 2015-08-17 | 2017-03-01 | 浙江福爱电子有限公司 | A kind of hot environment liquid injection apparatus |
| CN106082218A (en) * | 2016-08-05 | 2016-11-09 | 廊坊市尚奇燃气技术有限责任公司 | Prepare the device of dry ice |
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