CN114316917A - Environment-friendly non-toxic low-temperature coolant and preparation method thereof - Google Patents
Environment-friendly non-toxic low-temperature coolant and preparation method thereof Download PDFInfo
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- CN114316917A CN114316917A CN202111576021.4A CN202111576021A CN114316917A CN 114316917 A CN114316917 A CN 114316917A CN 202111576021 A CN202111576021 A CN 202111576021A CN 114316917 A CN114316917 A CN 114316917A
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Abstract
The invention discloses an environment-friendly nonhazardous low-temperature coolant and a preparation method thereof, relates to the technical field of low-temperature coolant, and aims to solve the problems that the added solid materials are not fully ground, so that the prepared low-temperature coolant has uneven fineness, the prepared low-temperature coolant is adsorbed on the inner wall of a reaction kettle, the low-temperature coolant is wasted, and the preparation effect of the low-temperature coolant is poor. The composite material comprises the following components in percentage by mass: 10% of ethylene glycol, 5% of ammonium chloride, 5% of sodium chloride, 5% of calcium chloride, 1% of guar gum, 0.3% of organic acid, 2% of super absorbent resin, 2% of borax and 69.7% of water, and preparing the ethylene glycol, the ammonium chloride and the water into an aqueous solution; fully grinding sodium chloride, calcium chloride, super absorbent resin and borax, and then adding into a reaction kettle; starting a stirring motor to drive a stirring paddle to stir the materials in the reaction kettle; and starting the electric heater to heat the reaction kettle.
Description
Technical Field
The invention relates to the technical field of low-temperature coolant, in particular to an environment-friendly non-toxic low-temperature coolant and a preparation method thereof.
Background
The cold storage technology is a process of storing cold energy in a cold storage agent by utilizing various physical, chemical, mechanical and other effective means and releasing the stored cold energy when needed, and the substance produced by the technology not only can efficiently store the cold energy, but also meets various physical and chemical requirements and is called as the cold storage agent. The cold accumulating agent is a semi-transparent and viscous colloid mixture comprising organic or inorganic compounds, and can absorb and store a great amount of cold at low temperature, and release a great amount of cold at higher temperature to maintain low temperature environment in itself and in small range around for a long time.
At present, the low-temperature coolant needs to mix and react various materials in the preparation process, the added solid materials are not fully ground, the prepared low-temperature coolant has uneven fineness, the prepared low-temperature coolant can be adsorbed on the inner wall of a reaction kettle, the low-temperature coolant is wasted, the preparation effect of the low-temperature coolant is poor, the use requirement cannot be met, and therefore the problems are solved by an environment-friendly and non-toxic low-temperature coolant and a preparation method thereof in the market.
Disclosure of Invention
The invention aims to provide an environment-friendly nonhazardous low-temperature coolant and a preparation method thereof, and aims to solve the problems that solid materials added in the background technology are not fully ground, so that the prepared low-temperature coolant has uneven fineness, and the prepared low-temperature coolant is adsorbed on the inner wall of a reaction kettle, so that the low-temperature coolant is wasted, and the preparation effect of the low-temperature coolant is poor.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly non-toxic low-temperature coolant comprises the following components in percentage by mass: 10% of ethylene glycol, 5% of ammonium chloride, 5% of sodium chloride, 5% of calcium chloride, 1% of guar gum, 0.3% of organic acid, 2% of super absorbent resin, 2% of borax and 69.7% of water.
A preparation method of an environment-friendly and non-toxic low-temperature coolant comprises the following steps:
step 1: preparing the ethylene glycol, the ammonium chloride, the sodium chloride, the calcium chloride, the guar gum, the organic acid, the super absorbent resin, the borax and the water according to the mass percentage;
step 2: preparing ethylene glycol, ammonium chloride and water into aqueous solution, and adding the prepared aqueous solution into a preparation device;
wherein the preparation apparatus comprises:
the reaction kettle is provided with a kettle cover above the reaction kettle, three support frames are arranged outside the reaction kettle and connected with the reaction kettle through screws, the three support frames are arranged at equal intervals outside the reaction kettle, a stirring motor is arranged above the kettle cover and connected with the kettle cover through screws, a stirring shaft is arranged inside the reaction kettle and connected with the output end of the stirring motor into an integral structure, stirring blades are arranged on the stirring shaft and connected with the stirring shaft through screws, a feeding component is arranged on one side of the stirring motor and connected with the kettle cover into an integral structure, a discharging component is arranged at the lower end of the reaction kettle, and the discharging component and the reaction kettle are arranged into an integral structure;
and step 3: adding the prepared aqueous solution, guar gum and organic acid into a reaction kettle from a feeding assembly, fully grinding sodium chloride, calcium chloride, super absorbent resin and borax, and adding into the reaction kettle;
and 4, step 4: starting a stirring motor to drive a stirring paddle to stir the materials in the reaction kettle, so that the added materials are quickly and fully mixed;
and 5: starting an electric heater to heat the reaction kettle, and keeping the reaction temperature inside the reaction kettle at 50-60 ℃;
step 6: stirring and reacting for 3 hours, standing and cooling at normal temperature to obtain the cold storage agent.
Preferably, the inside of reation kettle casing is provided with electric heater, and electric heater is provided with six, and electric heater sets up structure as an organic whole with reation kettle's casing, six electric heater sets up at reation kettle's casing equidistance.
Preferably, the other side of agitator motor is provided with grinding device, and grinding device and kettle cover pass through bolted connection, the one end of grinding device discharge gate runs through and extends to the inside of kettle cover.
Preferably, one side of stirring paddle leaf is provided with rubber scraper, be provided with the hinge between rubber scraper and the stirring paddle leaf, and the hinge is connected structure as an organic whole with stirring paddle leaf and rubber scraper, stirring paddle leaf rotates with rubber scraper to be connected, and rubber scraper laminates with reation kettle's inner wall mutually.
Preferably, one side of reation kettle is provided with the backwash pump, and the backwash pump passes through the screw connection with reation kettle, the both ends of backwash pump all are provided with backflow pipeline, and backflow pipeline's one end runs through and extends to reation kettle's inside.
Preferably, one side of support frame is provided with high-pressure gas holder and air compressor machine, and high-pressure gas holder and air compressor machine all pass through the screw connection with the support frame, the both ends of air compressor machine all are provided with the gas injection pipeline, and the gas injection pipeline all is connected structure as an organic whole with reation kettle, high-pressure gas holder and air compressor machine, reation kettle's inside is provided with the air nozzle, and the air nozzle sets up structure as an organic whole with reation kettle, the air nozzle is connected structure as an organic whole with the gas injection pipeline.
Preferably, one side of reation kettle is provided with temperature sensor, and temperature sensor and reation kettle are connected structure as an organic whole, temperature sensor's one end is run through and is extended to reation kettle's inside.
Preferably, one side of reation kettle is provided with the liquid level linker, and the liquid level linker is connected structure as an organic whole with reation kettle, the both ends of liquid level linker all run through and extend to reation kettle's inside.
Preferably, it is three the lower extreme of support frame all is provided with the dashpot, and is three the below of support frame all is provided with anti-skidding cushion block, and anti-skidding cushion block's one end extends to the inside of dashpot, the inside of dashpot is provided with the shock absorber, and the both ends of shock absorber have support frame and anti-skidding cushion block to connect structure as an organic whole respectively, anti-skidding cushion block's both sides all are provided with the slider, and the slider passes through screw connection with the support frame, slider and anti-skidding cushion block sliding connection.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the arrangement of the grinding equipment and the reflux pump, the grinding equipment can grind the added solid preparation raw material and reduce the granularity of the added raw material, so that the fineness of the prepared low-temperature coolant is ensured, and the coolant at the lower layer can be pumped and transferred to the upper layer under the action of the reflux pump, so that the mixing of the coolant is accelerated, and the quality of the low-temperature coolant is indirectly improved. Solves the problem that the quality of the prepared low-temperature coolant is reduced due to the excessive granularity of the added raw materials.
2. According to the invention, through the arrangement of the high-pressure gas storage tank and the air compressor, the gas stored in the high-pressure gas storage tank can be pressurized and injected into the reaction kettle under the action of the air compressor, so that bubbles in the cold storage agent can be discharged, and the quality of the low-temperature cold storage agent is improved. The problem of low temperature coolant quality is reduced because bubbles can be mixed in the low temperature coolant preparation stirring process is solved.
3. According to the invention, through the arrangement of the rubber scraper, the rubber scraper is driven to rotate along with the rotation of the stirring paddle, and the low-temperature coolant attached to the inner wall of the reaction kettle can be scraped off by the rubber scraper attached to the inner wall of the reaction kettle during rotation, so that the waste of the low-temperature coolant is reduced. The problem of the low temperature coolant of preparation remain adsorb on the reation kettle inner wall, can cause the waste of low temperature coolant is solved.
4. According to the invention, through the arrangement of the anti-skid cushion block and the shock absorber, the shock absorber can shrink and buffer the transmitted vibration force, so that the vibration buffer in the device preparation process is released, the stability of the device is improved, and the noise reduction effect is indirectly realized. The problem of the vibration can not the buffering release in the device use, the noise is great is solved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a sectional view of a reaction vessel according to the present invention;
FIG. 3 is a cross-sectional view of a reaction vessel of the present invention;
FIG. 4 is an enlarged view of a portion of the area A of FIG. 2 according to the present invention;
FIG. 5 is a diagram showing the connection relationship between the anti-slip mat and the support frame according to the present invention.
In the figure: 1. a reaction kettle; 2. a kettle cover; 3. a support frame; 4. an anti-skid cushion block; 5. a discharge assembly; 6. a locking assembly; 7. a stirring motor; 8. a feeding assembly; 9. a grinding device; 10. a reflux pump; 11. a return line; 12. a first solenoid valve; 13. a high pressure gas storage tank; 14. an air compressor; 15. a gas injection pipe; 16. a second solenoid valve; 17. a temperature sensor; 18. a liquid level communicating vessel; 19. a stirring shaft; 20. a stirring paddle; 21. a rubber blade; 22. a hinge; 23. an electric heater; 24. an air nozzle; 25. a seal member; 26. a buffer tank; 27. a slider; 28. a shock absorber; 29. a chute.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an embodiment of the present invention is shown: an environment-friendly non-toxic low-temperature coolant comprises the following components in percentage by mass: 10% of ethylene glycol, 5% of ammonium chloride, 5% of sodium chloride, 5% of calcium chloride, 1% of guar gum, 0.3% of organic acid, 2% of super absorbent resin, 2% of borax and 69.7% of water.
A preparation method of an environment-friendly and non-toxic low-temperature coolant comprises the following steps:
step 1: preparing the ethylene glycol, the ammonium chloride, the sodium chloride, the calcium chloride, the guar gum, the organic acid, the super absorbent resin, the borax and the water according to the mass percentage;
step 2: preparing ethylene glycol, ammonium chloride and water into aqueous solution, and adding the prepared aqueous solution into a preparation device;
wherein the preparation apparatus comprises:
a reaction kettle 1, a kettle cover 2 is arranged above the reaction kettle 1, three locking assemblies 6 are arranged between the kettle cover 2 and the reaction kettle 1, the locking assemblies 6 are connected with the reaction kettle 1 and the kettle cover 2 into an integral structure, a support frame 3 is arranged outside the reaction kettle 1, the three support frames 3 are connected with the reaction kettle 1 through screws, the three support frames 3 are arranged at equal intervals outside the reaction kettle 1, a stirring motor 7 is arranged above the kettle cover 2, the stirring motor 7 is connected with the kettle cover 2 through screws, a stirring shaft 19 is arranged inside the reaction kettle 1, the stirring shaft 19 is connected with the output end of the stirring motor 7 into an integral structure, stirring blades 20 are arranged on the stirring shaft 19, the stirring blades 20 are connected with the stirring shaft 19 through screws, a feeding assembly 8 is arranged on one side of the stirring motor 7, and the feeding assembly 8 is connected with the kettle cover 2 into an integral structure, the lower end of the reaction kettle 1 is provided with a discharge component 5, and the discharge component 5 and the reaction kettle 1 are arranged into an integral structure;
and step 3: adding the prepared aqueous solution, guar gum and organic acid into a reaction kettle 1 from a feeding component 8, fully grinding sodium chloride, calcium chloride, super absorbent resin and borax, and adding into the reaction kettle 1;
and 4, step 4: starting the stirring motor 7 to drive the stirring blades 20 to stir the materials in the reaction kettle 1, so that the added materials are quickly and fully mixed;
and 5: starting an electric heater 23 to heat the reaction kettle 1, and keeping the reaction temperature in the reaction kettle 1 at 50-60 ℃;
step 6: stirring and reacting for 3 hours, standing and cooling at normal temperature to obtain the cold storage agent.
Further, the electric heaters 23 are arranged inside the shell of the reaction kettle 1, six electric heaters 23 are arranged, the electric heaters 23 and the shell of the reaction kettle 1 are arranged into an integral structure, and the six electric heaters 23 are equidistantly arranged on the shell of the reaction kettle 1. The reaction kettle 1 can be heated through the electric heater 23, so that the preparation temperature of the low-temperature coolant is adjusted, and the preparation of the low-temperature coolant is facilitated at a proper temperature.
Further, the other side of agitator motor 7 is provided with grinding device 9, and grinding device 9 passes through the screw connection with kettle cover 2, and the one end of grinding device 9 discharge gate runs through and extends to the inside of kettle cover 2. The added solid raw materials can be fully ground through the grinding equipment 9, so that the granularity of the added materials is controlled, and the fineness of the prepared low-temperature coolant is indirectly ensured.
Further, one side of stirring paddle 20 is provided with rubber scraper 21, is provided with hinge 22 between rubber scraper 21 and the stirring paddle 20, and hinge 22 is connected as an organic whole structure with stirring paddle 20 and rubber scraper 21, and stirring paddle 20 rotates with rubber scraper 21 to be connected, and rubber scraper 21 laminates with reation kettle 1's inner wall mutually. Make rubber scraper 21 can rotate through hinge 22, rubber scraper 21 stirs the material equally when stirring paddle 20 clockwise rotation, and stirring paddle 20 anticlockwise rotation can make rubber scraper 21 laminate reation kettle 1's inner wall and rotate to can strike off the low temperature coolant attached to on reation kettle 1 inner wall and come down, reduce the waste of low temperature coolant.
Further, one side of reation kettle 1 is provided with backwash pump 10, and backwash pump 10 passes through the screw connection with reation kettle 1, backwash pump 10's both ends all are provided with backflow pipeline 11, and backflow pipeline 11's one end runs through and extends to reation kettle 1's inside, backflow pipeline 11 is provided with sealing member 25 with reation kettle 1's contact department, and sealing member 25 and reation kettle 1 and backflow pipeline 11 are connected structure as an organic whole, be provided with first solenoid valve 12 on backflow pipeline 11, and first solenoid valve 12 sets up structure as an organic whole with backflow pipeline 11. Can mix in the coolant extraction transfer to upper strata coolant of lower floor in reation kettle 1 through backwash pump 10 for coolant mixes more thoroughly evenly, the indirect coolant preparation effect that has improved.
Further, one side of support frame 3 is provided with high-pressure gas holder 13 and air compressor machine 14, and high-pressure gas holder 13 and air compressor machine 14 all pass through the screw connection with support frame 3, the both ends of air compressor machine 14 all are provided with gas injection pipeline 15, and gas injection pipeline 15 and reation kettle 1, high-pressure gas holder 13 and air compressor machine 14 all are connected structure as an organic whole, reation kettle 1's inside is provided with air nozzle 24, and air nozzle 24 sets up structure as an organic whole with reation kettle 1, air nozzle 24 is connected structure as an organic whole with gas injection pipeline 15, be provided with second solenoid valve 16 on the gas injection pipeline 15, and second solenoid valve 16 sets up structure as an organic whole with gas injection pipeline 15. The stored gas can be pressurized and injected into the coolant through the high-pressure gas tank 13 and the air compressor 14, so that bubbles in the coolant can be extruded and discharged, thereby ensuring the quality of the prepared coolant.
Further, one side of reaction kettle 1 is provided with temperature sensor 17, and temperature sensor 17 is connected as an organic whole structure with reaction kettle 1, and the one end of temperature sensor 17 runs through and extends to the inside of reaction kettle 1. The temperature sensor 17 can measure the temperature of the low-temperature coolant in the reaction kettle 1, so that the preparation temperature of the low-temperature coolant is accurately controlled, and the quality of the low-temperature coolant is indirectly improved.
Further, one side of reation kettle 1 is provided with liquid level linker 18, and liquid level linker 18 is connected structure as an organic whole with reation kettle 1, and the both ends of liquid level linker 18 all run through and extend to reation kettle 1's inside. The liquid level of the low-temperature coolant in the reaction kettle 1 can be measured through the liquid level communicating vessel 18.
Further, the lower extreme of three support frame 3 all is provided with dashpot 26, the below of three support frame 3 all is provided with non slipping block 4, and non slipping block 4's one end extends to the inside of dashpot 26, the inside of dashpot 26 is provided with shock absorber 28, and shock absorber 28's both ends have support frame 3 and non slipping block 4 to connect structure as an organic whole respectively, be provided with spout 29 on the non slipping block 4, spout 29 is provided with two, and two spout 29 sets up the both sides at non slipping block 4, non slipping block 4's both sides all are provided with slider 27, and slider 27 passes through screw connection with support frame 3, slider 27's one end extends to the inside of spout 29, and slider 27 and non slipping block 4 sliding connection. The vibration force transmitted to the support frame 3 can be contracted and buffered through the shock absorber 28, so that the vibration amplitude of the preparation device is reduced, and the noise reduction effect is achieved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The environment-friendly non-toxic low-temperature coolant is characterized by comprising the following components in percentage by mass: 10% of ethylene glycol, 5% of ammonium chloride, 5% of sodium chloride, 5% of calcium chloride, 1% of guar gum, 0.3% of organic acid, 2% of super absorbent resin, 2% of borax and 69.7% of water.
2. The preparation method of the environment-friendly non-toxic low-temperature coolant is characterized by comprising the following steps of:
step 1: preparing the ethylene glycol, the ammonium chloride, the sodium chloride, the calcium chloride, the guar gum, the organic acid, the super absorbent resin, the borax and the water according to the mass percentage;
step 2: preparing ethylene glycol, ammonium chloride and water into aqueous solution, and adding the prepared aqueous solution into a preparation device;
wherein the preparation apparatus comprises:
the reaction kettle (1), a kettle cover (2) is arranged above the reaction kettle (1), three support frames (3) are arranged outside the reaction kettle (1), the number of the support frames (3) is three, the support frames (3) are connected with the reaction kettle (1) through screws, the three support frames (3) are arranged at the outer equal distance of the reaction kettle (1), a stirring motor (7) is arranged above the kettle cover (2), the stirring motor (7) is connected with the kettle cover (2) through screws, a stirring shaft (19) is arranged inside the reaction kettle (1), the stirring shaft (19) is connected with the output end of the stirring motor (7) into an integral structure, stirring blades (20) are arranged on the stirring shaft (19), the stirring blades (20) are connected with the stirring shaft (19) through screws, a feeding assembly (8) is arranged on one side of the stirring motor (7), the feeding assembly (8) and the kettle cover (2) are connected into an integral structure, the lower end of the reaction kettle (1) is provided with the discharging assembly (5), and the discharging assembly (5) and the reaction kettle (1) are arranged into an integral structure;
and step 3: adding the prepared aqueous solution, guar gum and organic acid into a reaction kettle (1) from a feeding component (8), fully grinding sodium chloride, calcium chloride, super absorbent resin and borax, and then adding into the reaction kettle (1);
and 4, step 4: starting a stirring motor (7) to drive a stirring paddle (20) to stir the materials in the reaction kettle (1), so that the added materials are quickly and fully mixed;
and 5: starting an electric heater (23) to heat the reaction kettle (1), and keeping the reaction temperature inside the reaction kettle (1) at 50-60 ℃;
step 6: stirring and reacting for 3 hours, standing and cooling at normal temperature to obtain the cold storage agent.
3. The method for preparing the environment-friendly nontoxic low-temperature coolant as claimed in claim 2, wherein the method comprises the following steps: the reaction kettle (1) is characterized in that an electric heater (23) is arranged in the shell of the reaction kettle (1), six electric heaters (23) are arranged, the shell of each electric heater (23) and the shell of the reaction kettle (1) are arranged to be of an integral structure, and the electric heaters (23) are arranged at equal intervals on the shell of the reaction kettle (1).
4. The method for preparing the environment-friendly nontoxic low-temperature coolant as claimed in claim 2, wherein the method comprises the following steps: the opposite side of agitator motor (7) is provided with grinding device (9), and grinding device (9) and kettle cover (2) pass through the screw connection, the one end of grinding device (9) discharge gate runs through and extends to the inside of kettle cover (2).
5. The method for preparing the environment-friendly nontoxic low-temperature coolant as claimed in claim 2, wherein the method comprises the following steps: one side of stirring paddle (20) is provided with rubber scraper (21), be provided with hinge (22) between rubber scraper (21) and stirring paddle (20), and hinge (22) are connected structure as an organic whole with stirring paddle (20) and rubber scraper (21), stirring paddle (20) rotate with rubber scraper (21) and are connected, and the inner wall of rubber scraper (21) and reation kettle (1) is laminated mutually.
6. The method for preparing the environment-friendly nontoxic low-temperature coolant as claimed in claim 2, wherein the method comprises the following steps: one side of reation kettle (1) is provided with backwash pump (10), and backwash pump (10) and reation kettle (1) pass through the screw connection, the both ends of backwash pump (10) all are provided with backflow pipeline (11), and the one end of backflow pipeline (11) runs through and extends to the inside of reation kettle (1).
7. The method for preparing the environment-friendly nontoxic low-temperature coolant as claimed in claim 2, wherein the method comprises the following steps: one side of support frame (3) is provided with high-pressure gas holder (13) and air compressor machine (14), and high-pressure gas holder (13) and air compressor machine (14) all pass through the screw connection with support frame (3), the both ends of air compressor machine (14) all are provided with gas injection pipeline (15), and gas injection pipeline (15) all are connected structure as an organic whole with reation kettle (1), high-pressure gas holder (13) and air compressor machine (14), the inside of reation kettle (1) is provided with air nozzle (24), and air nozzle (24) and reation kettle (1) set up structure as an organic whole, air nozzle (24) are connected structure as an organic whole with gas injection pipeline (15).
8. The method for preparing the environment-friendly nontoxic low-temperature coolant as claimed in claim 2, wherein the method comprises the following steps: one side of reation kettle (1) is provided with temperature sensor (17), and temperature sensor (17) and reation kettle (1) are connected structure as an organic whole, the inside of reation kettle (1) is run through and extends to in the one end of temperature sensor (17).
9. The method for preparing the environment-friendly nontoxic low-temperature coolant as claimed in claim 2, wherein the method comprises the following steps: one side of reation kettle (1) is provided with liquid level linker (18), and liquid level linker (18) is connected structure as an organic whole with reation kettle (1), the inside of reation kettle (1) is all run through and extend to at the both ends of liquid level linker (18).
10. The method for preparing the environment-friendly nontoxic low-temperature coolant as claimed in claim 2, wherein the method comprises the following steps: it is three the lower extreme of support frame (3) all is provided with dashpot (26), and is three the below of support frame (3) all is provided with anti-skidding cushion block (4), and the one end of anti-skidding cushion block (4) extends to the inside of dashpot (26), the inside of dashpot (26) is provided with shock absorber (28), and the both ends of shock absorber (28) have support frame (3) and anti-skidding cushion block (4) respectively to be connected structure as an organic whole, the both sides of anti-skidding cushion block (4) all are provided with slider (27), and slider (27) pass through the screw connection with support frame (3), slider (27) and anti-skidding cushion block (4) sliding connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111576021.4A CN114316917A (en) | 2021-12-22 | 2021-12-22 | Environment-friendly non-toxic low-temperature coolant and preparation method thereof |
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| CN202111576021.4A CN114316917A (en) | 2021-12-22 | 2021-12-22 | Environment-friendly non-toxic low-temperature coolant and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104726071A (en) * | 2015-03-23 | 2015-06-24 | 南京久鼎制冷空调设备有限公司 | Composite low-temperature coolant and preparation method and applications thereof |
| CN109370538A (en) * | 2018-11-26 | 2019-02-22 | 浙江大学 | A kind of phase change cold accumulating agent fresh-keeping for Pleurotus eryngii and preparation method thereof |
| CN213643861U (en) * | 2020-10-12 | 2021-07-09 | 潍坊裕凯化工有限公司 | Heat preservation cauldron is used in bromine nitre alcohol production |
-
2021
- 2021-12-22 CN CN202111576021.4A patent/CN114316917A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104726071A (en) * | 2015-03-23 | 2015-06-24 | 南京久鼎制冷空调设备有限公司 | Composite low-temperature coolant and preparation method and applications thereof |
| CN109370538A (en) * | 2018-11-26 | 2019-02-22 | 浙江大学 | A kind of phase change cold accumulating agent fresh-keeping for Pleurotus eryngii and preparation method thereof |
| CN213643861U (en) * | 2020-10-12 | 2021-07-09 | 潍坊裕凯化工有限公司 | Heat preservation cauldron is used in bromine nitre alcohol production |
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