CN107601507A - The apparatus and method that carbon dioxide is recycled in dry ice preparation process - Google Patents
The apparatus and method that carbon dioxide is recycled in dry ice preparation process Download PDFInfo
- Publication number
- CN107601507A CN107601507A CN201711006945.4A CN201711006945A CN107601507A CN 107601507 A CN107601507 A CN 107601507A CN 201711006945 A CN201711006945 A CN 201711006945A CN 107601507 A CN107601507 A CN 107601507A
- Authority
- CN
- China
- Prior art keywords
- dry
- carbon dioxide
- connecting pipe
- flow
- ice machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses the device that carbon dioxide is recycled in a kind of dry ice preparation process, including the raw material storage tank being sequentially connected, first connecting pipe, dry-ice machine, second connecting pipe, air exhauster, 3rd connecting pipe, compressor, 4th connecting pipe, liquefier, 5th connecting pipe and refrigerator, first connecting pipe is provided with regulating valve A, it is tightly connected between second connecting pipe and the exhaust outlet of dry-ice machine and dry-ice machine is additionally provided with pressure relief opening, pressure relief opening is provided with check-valves, the liquid outlet of liquefier and the inlet of dry-ice machine are connected by the 6th connecting pipe, 6th connecting pipe is provided with flow sensor A, the input of the control unit of flow sensor A connections one, the output end of regulating valve A connection control units, control unit sends the instruction for controlling to adjust valve A according to flow sensor A testing result.Purification processes need not be carried out to waste gas, you can in the present invention to realize the recycling of waste gas in dry ice manufacturing process.
Description
Technical field
The present invention relates to carbon dioxide recovery field, and in particular to the dress of carbon dioxide is recycled in dry ice preparation process
Put and method.
Background technology
Carbon dioxide is a kind of valuable resource, can be widely used in multiple fields：Chemical synthesis industry, machinery
Protect welding, metal casting processing, agricultural fertilizer, fruit and vegetable is fresh-keeping, beer beverage is filling, oil exploitation, fire-fighting fire extinguishing, doctor
The industries such as medicine health are required for great amount of carbon dioxide.The source of China's carbon dioxide is very abundant, but due to reclaiming carbon dioxide
Measure it is unfavorable, the 2% of the also insufficient discharge capacity of carbon dioxide of annual recycling, be discharged into air every year in world wide
In about 20,000,000,000 tons or so of carbon dioxide, both caused the pollution of air, and formed fearful greenhouse effects, waste again
Valuable resource.So the recycling of carbon dioxide can not only reduce the manufacture of carbon dioxide, air can also be reduced
In carbon dioxide, finally play reduce atmosphere pollution effect.
Dry ice has a powdery and block two kinds, powdery dry ice be with liquid CO 2 through obtained from throttling expansion, it is block
Dry ice is that powdery dry ice is suppressed and obtained in ice maker, and it according to carbon dioxide phase equilibrium diagram is foundation that carbon dioxide solidification, which is,
It was found from carbon dioxide phase diagram, when liquid CO 2 throttling expansion reduces pressure, it reduces temperature simultaneously, is put down along gas-solid
During the movement of weighing apparatus line low temperature direction, the gentle body carbon dioxide of powdery dry ice is produced.So in dry ice preparation process, can produce a large amount of
Carbon dioxide, if these carbon dioxide can reclaim, it is possible to reduce atmosphere pollution.
Authorization Notice No. is that CN201545703U Chinese utility model patent discloses a kind of dry ice waste gas recovery purification
Carbon dioxide plant, recovery dry ice waste gas access purifying plant, because the exhaust outlet of dry-ice machine is not closed, therefore is caused back
The carbon dioxide purity of receipts is very low, it is necessary to which accessing after purifying plant is handled to recycle.
The content of the invention
It is an object of the invention to provide the device that carbon dioxide is recycled in a kind of dry ice preparation process, it is not necessary to useless
Gas carries out purification processes, you can to realize the recycling of waste gas in dry ice manufacturing process.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：Dioxy is recycled in a kind of dry ice preparation process
Change the device of carbon, including raw material storage tank, dry-ice machine, air exhauster, compressor, liquefier and refrigerator, the raw material storage
The inlet of the liquid outlet of tank and the dry-ice machine is connected by the first connecting pipe, and the exhaust outlet of the dry-ice machine is taken out with described
The air inlet of blower fan is connected by the second connecting pipe, and the air inlet of the gas outlet of the air exhauster and the compressor passes through the
Three connecting pipes are connected, and the gas outlet of the compressor and the air inlet of the liquefier are connected by the 4th connecting pipe, institute
The refrigerant inlet of the refrigerant exit and the liquefier of stating refrigerator is connected by the 5th connecting pipe；
Wherein, first connecting pipe is provided with the carbon dioxide stream that regulation flows to the dry-ice machine from the raw material storage tank
The regulating valve A of amount, it is tightly connected between second connecting pipe and the exhaust outlet of the dry-ice machine and the dry-ice machine is also set
There is pressure relief opening, the pressure relief opening flows to the check-valves outside the dry-ice machine, institute provided with carbon dioxide in the permission dry-ice machine
The inlet of the liquid outlet and the dry-ice machine of stating liquefier is connected by the 6th connecting pipe, and the 6th connecting pipe is provided with inspection
Survey the flow sensor A for the carbon dioxide flow that the dry-ice machine is flowed to from the liquefier, the flow sensor A connections one
The input of control unit, the output end of the regulating valve A connections described control unit, described control unit is according to the flow
The testing result of sensors A sends the instruction for controlling the regulating valve A.
In above-mentioned technical proposal, the internal diameter of the exhaust outlet of the dry-ice machine is more than the external diameter of second connecting pipe, institute
The outer sheath for stating the second connecting pipe is provided with sealing drum, the company of sealing between one end of the sealing drum and the exhaust outlet end face
Connect, the other end of the sealing drum is tightly connected with the second connecting pipe outer wall, and the pressure relief opening is located at the sealing drum
On.
In above-mentioned technical proposal, the valve element of the check-valves is pressed in its valve seat by the restoring force effect of elastomeric element
On, the valve element of the check-valves is acted on away from its valve seat, the recovery of the elastomeric element by the pressure inside the dry-ice machine
Power is identical with the safe pressure inside the dry-ice machine.
In above-mentioned technical proposal, detection is additionally provided with first connecting pipe and flows to described do from the raw material storage tank
The flow sensor B of the carbon dioxide flow of ice maker, the input of the flow sensor B connections described control unit, respectively holds
The output end of the start stop switch connection described control unit of row mechanism, described control unit is according to the flow sensor A and institute
The testing result for stating flow sensor B sends the instruction for the start stop switch for controlling each executing agency.
In above-mentioned technical proposal, the dry-ice machine is provided with the pressure sensor A for detecting its internal pressure, the pressure sensing
The input of device A connection described control units, the output end of the motor connection described control unit of the compressor, the control
Unit sends the instruction for the motor for controlling the compressor according to the testing result of the pressure sensor A.
In above-mentioned technical proposal, the liquefier is provided with the temperature sensor for detecting its refrigerant temperature, the 5th connection
Pipeline is provided with the regulating valve B for the flow for adjusting the refrigerant that the liquefier is flowed to from the refrigerator, the temperature sensor
Connect described control unit input, the output end of the regulating valve B connections described control unit, described control unit according to
The testing result of the temperature sensor sends the instruction for controlling the regulating valve B.
In above-mentioned technical proposal, second connecting pipe is provided with detection and flows to the air exhauster from the dry-ice machine
The flow sensor C of carbon dioxide flow, the 3rd connecting pipe are additionally provided with the first drain, and first drain is provided with
Regulation flows to the regulating valve C of carbon dioxide flow outside the 3rd connecting pipe from inside the 3rd connecting pipe, described
The input of flow sensor C connection described control units, the output end of the regulating valve C connections described control unit are described
Control unit sends the instruction for controlling the regulating valve C according to the testing result of the flow sensor C.
In above-mentioned technical proposal, the raw material storage tank is provided with the pressure sensor B for detecting its internal pressure, the raw material
Storage tank is additionally provided with the second drain, and second drain is provided with regulation and flows to the raw material from inside the raw material storage tank
The regulating valve D of carbon dioxide flow, the input of the pressure sensor B connections described control unit are described outside storage tank
The output end of regulating valve D connection described control units, described control unit are sent according to the testing result of the pressure sensor B
Control the instruction of the regulating valve D.
The present invention also provides another technical scheme：The side of carbon dioxide is recycled in a kind of dry ice preparation process
Method, using device as described above, comprise the following steps：
S1, the regulating valve A is opened, the liquid carbon dioxide in the raw material storage tank is sent into the dry-ice machine；
S2, liquid carbon dioxide therein will be fed into by the dry-ice machine make to form dry ice, while form gaseous state titanium dioxide
Carbon；
S3, by the air exhauster extract dry ice make the gaseous carbon dioxide to be formed, while the gaseous state titanium dioxide that will be drawn into
Carbon is sent in the compressor after being pressurized to 0.1-0.3MPa；
S4, gaseous carbon dioxide therein will be fed into by the compressor it is pressurized to after 1.5-2.5MPa and be sent into the liquefier
In；
S5, form liquid titanium dioxide after making feeding gaseous carbon dioxide therein and refrigerant heat-shift by the liquefier
Carbon；
S6, the carbon dioxide that the liquefier is formed is sent into the dry-ice machine while adjusts the aperture of the regulating valve A, returned
To S2；
Wherein, in S6, the flow that described control unit detects according to the flow sensor A always enters flow quantity control with default
The aperture of the regulating valve A, when the flow that the flow sensor A is detected always enters the X% of flow quantity to preset, the regulation
Valve A aperture is 1-X%.
In above-mentioned technical proposal, when the carbon dioxide flow that the dry-ice machine is flowed to from the raw material storage tank detected
Be less than with the carbon dioxide flow that the dry-ice machine is flowed to from the liquefier it is default when always entering the 40% of flow quantity, described in control
Dry-ice machine, the air exhauster, the compressor, the liquefier and the refrigerator are shut down.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, by by the second connecting tube
It is tightly connected between road and the exhaust outlet of dry-ice machine, dry-ice machine sets pressure relief opening, and pressure relief opening, which is provided with, only allows dioxy in dry-ice machine
Change carbon flow to the check-valves outside dry-ice machine, pass through above-mentioned setting, on the one hand, when pressure is excessive in dry-ice machine, can drive
Check-valves open carry out pressure release, avoid because device interior pressure rise cause equipment can not normal operation the problem of appearance,
On the other hand, outside impurity can not enter inside dry-ice machine, and the carbon dioxide of discharge will not mix impurity, therefore, subsequently not
Need to be purified the recycling that carbon dioxide can be achieved；The inlet of the liquid outlet of liquefier and dry-ice machine is passed through
Six connecting pipes are connected, and the flow that the 6th connecting pipe is provided with the carbon dioxide flow that detection flows to dry-ice machine from liquefier passes
Sensor A, the first connecting pipe are provided with the regulating valve A that regulation flows to the carbon dioxide flow of dry-ice machine from raw material storage tank, stream
The input of the control unit of quantity sensor A connections one, the output end of regulating valve A connection control units, control unit is according to flow
The testing result of sensors A sends the instruction for controlling to adjust valve A, passes through above-mentioned setting, on the one hand, realizes returning for carbon dioxide
Receipts recycle, and the production requirement liquid carbon dioxide total amount of dry-ice machine, flow sensor A and regulating valve A mutual linkings,
Ensure that the liquid carbon dioxide inlet of dry-ice machine is constant, on the other hand, the preferential carbon dioxide using recovery carries out dry ice
Make, it is not necessary to set storage tank to be stored in addition；
2）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, the pressure relief opening of dry-ice machine leans on
Its nearly exhaust outlet is set, and by above-mentioned setting, is advantageous to reduce the pressure inside dry-ice machine；
3）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, the exhaust outlet of dry-ice machine
Internal diameter is more than the external diameter of the second connecting pipe, and the outer sheath of the second connecting pipe is provided with sealing drum, one end of sealing drum and exhaust
Mouth is tightly connected between end face, and the other end of sealing drum and the second connecting pipe outer wall are tightly connected, and pressure relief opening is located at sealing drum
On, by above-mentioned setting, the recycling that can be achieved carbon dioxide can be directly transformed existing dry-ice machine；
4）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, the valve element of check-valves passes through
The restoring force effect of elastomeric element is pressed on its valve seat, and the valve element of check-valves is acted on away from it by the pressure inside dry-ice machine
Valve seat, the restoring force of elastomeric element is identical with the safe pressure inside dry-ice machine, by above-mentioned setting, the pressure inside dry-ice machine
Bigger, then the valve element aperture of check-valves is bigger, and dry-ice machine internal pressure can quickly reduce, and ensure that dry-ice machine internal pressure base
This is constant；
5）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, is gone back on the first connecting pipe
The flow sensor B of the carbon dioxide flow of the dry-ice machine, flow sensor B connections are flowed to from raw material storage tank provided with detection
The input of control unit, the output end of executing agency's start stop switch connection control unit, control unit is according to flow sensor B
Testing result send the instruction of control executing agency start stop switch, by above-mentioned setting, flow sensor B and executing agency are opened
Guard's valve is chain, when liquid carbon dioxide amount deficiency, controls executing agency to be stopped in time；
6）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, dry-ice machine, which is provided with, detects it
The input of the pressure sensor A of internal pressure, pressure sensor A connection control unit, the motor connection control of compressor are single
The output end of member, control unit sends the instruction of the motor of control compressor according to pressure sensor A testing result, by upper
State setting, the motor of pressure sensor A and compressor is chain, and equipment pressure is big, then increases the running speed of air exhauster, otherwise also
So, dry-ice machine internal pressure substantially constant is ensured；
7）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, liquefier, which is provided with, detects it
The temperature sensor of refrigerant temperature, the 5th connecting pipe are provided with the tune for the flow for adjusting the refrigerant that liquefier is flowed to from refrigerator
Save valve B, temperature sensor connect control unit input, the output end of regulating valve B connection control units, control unit according to
The testing result of temperature sensor sends the instruction for controlling to adjust valve B, and by above-mentioned setting, temperature sensor connects with regulating valve B
Lock, to ensure that liquefier can maintain constant low temperature so that gaseous carbon dioxide can all liquefy；
8）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, is set on the second connecting pipe
There is the flow sensor C that detection flows to the carbon dioxide flow of compressor from dry-ice machine, the 3rd connecting pipe is additionally provided with first and put
Eat dishes without rice or wine, the first drain is provided with the tune that regulation flows to carbon dioxide flow outside the 3rd connecting pipe from inside the 3rd connecting pipe
Save valve C, the input of flow sensor C connection control units, the output end of regulating valve C connection control units, control unit root
The instruction for controlling to adjust valve C, by above-mentioned setting, regulating valve C and flow sensor are sent according to flow sensor C testing result
C is chain, if the flow for entering compressor is too many, suitably opens this regulating valve and is vented, to ensure that compressor will not be because
Damaged greatly very much for air inflow；
9）The device and method of carbon dioxide is recycled in dry ice preparation process disclosed by the invention, raw material storage tank is provided with inspection
The pressure sensor B of its internal pressure is surveyed, raw material storage tank is additionally provided with the second drain, and the second drain is provided with regulation described in
The regulating valve D of carbon dioxide flow outside the raw material storage tank, pressure sensor B connections control are flowed to inside raw material storage tank
The input of unit, the output end of regulating valve D connection control units, control unit are sent out according to pressure sensor B testing result
Go out to control to adjust valve D instruction, by above-mentioned setting, pressure sensor B and regulating valve D are chain, when liquid titanium dioxide in storage tank
When carbon usage amount is less, pressure can raise, especially summer, higher than 2.2Mpa, now can automatic linkage start this regulation
Valve, the pressure of storage tank is reduced, ensure that storage tank will not superpressure transmission security incident.
Brief description of the drawings
Fig. 1 is the composition frame chart for the device that carbon dioxide is recycled in dry ice preparation process disclosed by the invention.
Fig. 2 is the cooperation schematic diagram of the exhaust outlet of dry-ice machine disclosed by the invention, the second connecting pipe and pressure relief opening.
Wherein：101st, raw material storage tank；102nd, dry-ice machine；102a, exhaust outlet；102b, the second connecting pipe；It is 102c, close
Sealed tube；102d, pressure relief opening；103rd, air exhauster；104th, compressor；105th, liquefier；106th, refrigerator；201st, check-valves；202、
Flow sensor A；203rd, regulating valve A；204th, flow sensor B；205th, pressure sensor A；206th, temperature sensor；207th, adjust
Save valve B；208th, flow sensor C；209th, regulating valve C；210th, pressure sensor B；211st, regulating valve D.
Embodiment
With reference to drawings and Examples, the invention will be further described：
Referring to Fig. 1 and Fig. 2, as shown in legend therein, the device of carbon dioxide, bag are recycled in a kind of dry ice preparation process
Include raw material storage tank 101, dry-ice machine 102, air exhauster 103, compressor 104, liquefier 105 and refrigerator 106, raw material storage
The liquid outlet of tank 101 is connected with the inlet of dry-ice machine 102 by the first connecting pipe, the exhaust outlet and exhausting of dry-ice machine 102
The air inlet of machine 103 is connected by the second connecting pipe, and the gas outlet of air exhauster 103 and the air inlet of compressor 104 pass through the
Three connecting pipes are connected, and the gas outlet of compressor 104 is connected with the air inlet of liquefier 105 by the 4th connecting pipe, are freezed
The refrigerant exit of machine 106 is connected with the refrigerant inlet of liquefier 105 by the 5th connecting pipe,
Wherein, the first connecting pipe is provided with the regulating valve that regulation flows to the carbon dioxide flow of dry-ice machine from raw material storage tank
A201, it is tightly connected between the second connecting pipe and the exhaust outlet of dry-ice machine and dry-ice machine is additionally provided with pressure relief opening 102d, pressure relief opening
102d, which is provided with, allows in dry-ice machine carbon dioxide to flow to check-valves 202 outside the dry-ice machine, the liquid outlet of liquefier 105 with
The inlet of dry-ice machine 102 is connected by the 6th connecting pipe, and the 6th connecting pipe is provided with detection and flows to dry ice from liquefier
The input of the control unit of the flow sensor A203 of the carbon dioxide flow of machine, flow sensor A203 connection one, regulating valve
The output end of A201 connection control units, control unit send the finger for controlling to adjust valve A according to flow sensor A testing result
Order.
It is a kind of method that carbon dioxide is recycled in dry ice preparation process below, using device as above, including such as
Lower step：
S1, regulating valve A201 is opened, the liquid carbon dioxide in raw material storage tank 101 is sent into dry-ice machine 102；
S2, liquid carbon dioxide therein will be fed into by dry-ice machine 102 make to form dry ice, while form gaseous state titanium dioxide
Carbon；
S3, by air exhauster 103 extract dry ice make the gaseous carbon dioxide to be formed, while the gaseous carbon dioxide that will be drawn into
It is sent to after being pressurized to 0.1-0.3MPa in compressor 104；
S4, it be will be fed into by compressor 104 after gaseous carbon dioxide therein is pressurized to 1.5-2.5MPa and be sent into liquefier 105
In；
S5, form liquid carbon dioxide after making feeding gaseous carbon dioxide therein and refrigerant heat-shift by liquefier 105；
S6, the carbon dioxide that liquefier 105 is formed is sent into dry-ice machine 102 while adjusts the aperture of the regulating valve A, returned to
S2；
Wherein, in S6, control unit is according to the flow sensor A203 flows detected and presets total feed liquor flow control regulating valve
A201 aperture, when the flow that flow sensor A203 is detected always enters the X% of flow quantity to preset, regulating valve A201 aperture
For 1-X%.
In a kind of embodiment, the pressure relief opening of dry-ice machine 102 is set close to its exhaust outlet.
In a kind of embodiment, the exhaust outlet 102a of dry-ice machine 102 internal diameter is more than the second connecting pipe 102b external diameter,
Second connecting pipe 102b outer sheath is provided with sealing drum 102c, close between sealing drum 102c one end and exhaust outlet 102a end faces
Envelope connection, the sealing drum 102c other end and the second connecting pipe 102b outer walls are tightly connected, and pressure relief opening 102d is located at described close
In sealed tube.
In a kind of embodiment, the valve element of check-valves 202 is pressed on its valve seat by the restoring force effect of elastomeric element,
The valve element of check-valves 202 is acted on away from its valve seat, the restoring force and dry-ice machine of elastomeric element by the pressure inside dry-ice machine 102
Internal safe pressure is identical.
In a kind of embodiment, the titanium dioxide that detection flows to dry-ice machine from raw material storage tank is additionally provided with the first connecting pipe
The input of the flow sensor B204 of carbon flow, flow sensor B204 connection control unit, the start and stop of each executing agency are opened
Connection connects the output end of control unit, and control unit is sent out according to flow sensor A203 and flow sensor B204 testing result
Go out the instruction for the start stop switch for controlling each executing agency.
In a kind of embodiment, dry-ice machine 102 is provided with the pressure sensor A205 for detecting its internal pressure, pressure sensor
The input of A205 connection control units, the output end of the motor connection control unit of compressor 104, control unit is according to pressure
The testing result of sensors A 205 sends the instruction of the motor of control compressor 104.
In a kind of embodiment, liquefier 105 is provided with the temperature sensor 206 for detecting its refrigerant temperature, the 5th connecting tube
Road is provided with the regulating valve B207 for the flow for adjusting the refrigerant that liquefier is flowed to from refrigerator, the connection control of temperature sensor 206
The input of unit, the output end of regulating valve B207 connection control units, control unit is according to the detection knot of temperature sensor 206
Fruit sends the instruction for controlling to adjust valve B207.
In a kind of embodiment, the second connecting pipe is provided with the carbon dioxide flow that detection flows to air exhauster from dry-ice machine
Flow sensor C208, the 3rd connecting pipe is additionally provided with the first drain, and the first drain is provided with regulation from the 3rd connecting tube
The regulating valve C209 of carbon dioxide flow outside the 3rd connecting pipe, flow sensor C208 connection control units are flowed to inside road
Input, the output end of regulating valve C209 connection control units, control unit is according to flow sensor C208 testing result
Send the instruction for controlling to adjust valve C209.
In a kind of embodiment, raw material storage tank 101 is provided with the pressure sensor B210 for detecting its internal pressure, and raw material is deposited
Storage tank 101 is additionally provided with the second drain, and the second drain is provided with regulation and flowed to from inside raw material storage tank outside raw material storage tank
The input of the regulating valve D211 of carbon dioxide flow, pressure sensor B210 connection control unit, regulating valve D211 connections control
The output end of unit processed, control unit send the instruction for controlling to adjust valve D211 according to pressure sensor B210 testing result.
In a kind of embodiment, when what is detected flows to the carbon dioxide flow of dry-ice machine and liquefaction certainly from raw material storage tank
Device flow to dry-ice machine carbon dioxide flow be less than it is default when always entering the 40% of flow quantity, control dry-ice machine 102, air exhauster 103,
Compressor 104, liquefier 105 and refrigerator 106 are shut down.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. the device of carbon dioxide is recycled in a kind of dry ice preparation process, including raw material storage tank（101）, dry-ice machine
（102）, air exhauster（103）, compressor（104）, liquefier（105）And refrigerator（106）, the raw material storage tank（101）
Liquid outlet and the dry-ice machine（102）Inlet connected by the first connecting pipe, the dry-ice machine（102）Exhaust outlet
With the air exhauster（103）Air inlet connected by the second connecting pipe, the air exhauster（103）Gas outlet and the pressure
Contracting machine（104）Air inlet connected by the 3rd connecting pipe, the compressor（104）Gas outlet and the liquefier
（105）Air inlet connected by the 4th connecting pipe, the liquefier（105）Refrigerant inlet and the refrigerator（106）
Refrigerant exit connected by the 5th connecting pipe；
Characterized in that, first connecting pipe is provided with regulation from the raw material storage tank（101）Flow to the dry-ice machine
（102）Carbon dioxide flow regulating valve A（201）, second connecting pipe and the dry-ice machine（102）Exhaust outlet it
Between be tightly connected and the dry-ice machine（102）It is additionally provided with pressure relief opening（102d）, the pressure relief opening (102d), which is provided with, allows described do
Ice maker（102）Interior carbon dioxide flows to the dry-ice machine（102）Outside check-valves (202), the liquefier（105）Go out liquid
Mouth and the dry-ice machine（102）Inlet connected by the 6th connecting pipe, the 6th connecting pipe be provided with detection from described in
Liquefier（105）Flow to the dry-ice machine（102）Carbon dioxide flow flow sensor A（203）, the flow sensor
A（203）Connect the input of a control unit, the regulating valve A（201）Connect the output end of described control unit, the control
Unit processed is according to the flow sensor A（203）Testing result send the control regulating valve A（201）Instruction.
2. the device of carbon dioxide is recycled in dry ice preparation process according to claim 1, it is characterised in that described
Dry-ice machine（102）Exhaust outlet（102a）Internal diameter be more than second connecting pipe (102b) external diameter, it is described second connection
The outer sheath of pipeline (102b) is provided with sealing drum（102c）, the sealing drum（102c）One end and the exhaust outlet（102a）End
It is tightly connected between face, the sealing drum（102c）The other end and the second connecting pipe (102b) outer wall be tightly connected,
The pressure relief opening（102d）Located at the sealing drum（102c）On.
3. the device of carbon dioxide is recycled in dry ice preparation process according to claim 1, it is characterised in that described
The valve element of check-valves (202) is pressed on its valve seat by the restoring force effect of elastomeric element, the valve element of the check-valves (202)
By the internal pressure effect of the dry-ice machine (102) away from its valve seat, the restoring force of the elastomeric element and the dry-ice machine
（102）Internal safe pressure is identical.
4. the device of carbon dioxide is recycled in dry ice preparation process according to claim 1, it is characterised in that described
Detection is additionally provided with first connecting pipe from the raw material storage tank（101）Flow to the dry-ice machine（102）Carbon dioxide stream
The flow sensor B of amount（204）, the flow sensor B（204）Connect the input of described control unit, each executing agency
Start stop switch connection described control unit output end, described control unit is according to the flow sensor A（203）With it is described
Flow sensor B（204）Testing result send the instruction of the start stop switch for controlling each executing agency.
5. the device of carbon dioxide is recycled in dry ice preparation process according to claim 1, it is characterised in that described
Dry-ice machine（102）Provided with the pressure sensor A for detecting its internal pressure（205）, the pressure sensor A（205）Described in connection
The input of control unit, the compressor（104）Motor connection described control unit output end, described control unit root
According to the pressure sensor A（205）Testing result send the control compressor（104）Motor instruction.
6. the device of carbon dioxide is recycled in dry ice preparation process according to claim 1, it is characterised in that described
Liquefier（105）Provided with the temperature sensor for detecting its refrigerant temperature（206）, the 5th connecting pipe, which is provided with, to be adjusted from institute
State refrigerator（106）Flow to the liquefier（105）Refrigerant flow regulating valve B（207）, the temperature sensor
（206）Connect the input of described control unit, the regulating valve B（207）Connect the output end of described control unit, the control
Unit processed is according to the temperature sensor（206）Testing result send the control regulating valve B（207）Instruction.
7. the device of carbon dioxide is recycled in dry ice preparation process according to claim 1, it is characterised in that described
Second connecting pipe（102b）Detection is provided with from the dry-ice machine（102）Flow to the air exhauster（103）Carbon dioxide stream
The flow sensor C of amount（208）, the 3rd connecting pipe is additionally provided with the first drain, and first drain is provided with regulation
The regulating valve C of carbon dioxide flow outside the 3rd connecting pipe is flowed to from inside the 3rd connecting pipe（209）, it is described
Flow sensor C（208）Connect the input of described control unit, the regulating valve C（209）Connect the defeated of described control unit
Go out end, described control unit is according to the flow sensor C（208）Testing result send the control regulating valve C（209）'s
Instruction.
8. the device of carbon dioxide is recycled in dry ice preparation process according to claim 1, it is characterised in that described
Raw material storage tank（101）Provided with the pressure sensor B for detecting its internal pressure（210）, the raw material storage tank（101）It is additionally provided with
Second drain, second drain are provided with regulation from the raw material storage tank（101）Inside flows to the raw material storage tank
（101）The regulating valve D of outside carbon dioxide flow（211）, the pressure sensor B（210）Connect the defeated of described control unit
Enter end, the regulating valve D（211）The output end of described control unit is connected, described control unit is according to the pressure sensor B
（210）Testing result send the control regulating valve D（211）Instruction.
9. the method for carbon dioxide is recycled in a kind of dry ice preparation process, it is characterised in that appoint using such as claim 1-8
Device described in one, comprises the following steps：
S1, open the regulating valve A（201）, by the raw material storage tank（101）In liquid carbon dioxide be sent into the dry ice
Machine（102）In；
S2, pass through the dry-ice machine（102）It will be fed into liquid carbon dioxide therein to make to form dry ice, while form gaseous state two
Carbonoxide；
S3, pass through the air exhauster（103）Extract dry ice and make the gaseous carbon dioxide to be formed, while the gaseous state two that will be drawn into
Carbonoxide is sent to the compressor after being pressurized to 0.1-0.3MPa（104）In；
S4, pass through the compressor（104）It will be fed into described in gaseous carbon dioxide therein is pressurized to after 1.5-2.5MPa and is sent into
Liquefier（105）In；
S5, pass through the liquefier（105）Make feeding gaseous carbon dioxide therein with forming liquid two after refrigerant heat-shift
Carbonoxide；
S6, by the liquefier（105）The carbon dioxide of formation is sent into the dry-ice machine（102）In simultaneously adjust the regulating valve
A（201）Aperture, return to S2；
Wherein, in S6, described control unit is according to the flow sensor A（203）The flow detected always enters liquid stream with default
Amount controls the regulating valve A（201）Aperture, the flow sensor A（203）The flow detected always enters flow quantity to be default
X% when, the regulating valve A（201）Aperture be 1-X%.
10. the method for carbon dioxide is recycled in dry ice preparation process according to claim 9, it is characterised in that when
Detect from the raw material storage tank（101）Flow to the dry-ice machine（102）Carbon dioxide flow and from the liquefier
（105）Flow to the dry-ice machine（102）Carbon dioxide flow be less than default when always entering the 40% of flow quantity, control the dry ice
Machine（102）, the air exhauster（103）, the compressor（104）, the liquefier (105 and the refrigerator (106 shut down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006945.4A CN107601507A (en) | 2017-10-25 | 2017-10-25 | The apparatus and method that carbon dioxide is recycled in dry ice preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006945.4A CN107601507A (en) | 2017-10-25 | 2017-10-25 | The apparatus and method that carbon dioxide is recycled in dry ice preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107601507A true CN107601507A (en) | 2018-01-19 |
Family
ID=61079792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711006945.4A Pending CN107601507A (en) | 2017-10-25 | 2017-10-25 | The apparatus and method that carbon dioxide is recycled in dry ice preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107601507A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282574A (en) * | 2018-09-25 | 2019-01-29 | 陈剑军 | A kind of device and production method with ammonia heat pump refrigerating recycling dry ice gas phase |
| CN109279604A (en) * | 2018-11-30 | 2019-01-29 | 厦门理工学院 | A kind of high-density CO 2 molding equipment |
| CN114956080A (en) * | 2022-02-10 | 2022-08-30 | 厦门金瑞镒工贸有限公司 | Dry ice preparation device, exhaust structure of dry ice preparation device and exhaust method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4886534A (en) * | 1987-08-04 | 1989-12-12 | Societe Industrielle De L'anhydride Carbonique | Process for apparatus for cryogenic cooling using liquid carbon dioxide as a refrigerating agent |
| JPH0733423A (en) * | 1993-07-15 | 1995-02-03 | Iwatani Internatl Corp | Device for recovering carbon dioxide from dry ice packing device |
| CN207391013U (en) * | 2017-10-25 | 2018-05-22 | 昆山金宏二氧化碳有限公司 | The device of carbon dioxide is recycled in dry ice preparation process |
-
2017
- 2017-10-25 CN CN201711006945.4A patent/CN107601507A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4886534A (en) * | 1987-08-04 | 1989-12-12 | Societe Industrielle De L'anhydride Carbonique | Process for apparatus for cryogenic cooling using liquid carbon dioxide as a refrigerating agent |
| JPH0733423A (en) * | 1993-07-15 | 1995-02-03 | Iwatani Internatl Corp | Device for recovering carbon dioxide from dry ice packing device |
| CN207391013U (en) * | 2017-10-25 | 2018-05-22 | 昆山金宏二氧化碳有限公司 | The device of carbon dioxide is recycled in dry ice preparation process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282574A (en) * | 2018-09-25 | 2019-01-29 | 陈剑军 | A kind of device and production method with ammonia heat pump refrigerating recycling dry ice gas phase |
| CN109279604A (en) * | 2018-11-30 | 2019-01-29 | 厦门理工学院 | A kind of high-density CO 2 molding equipment |
| CN109279604B (en) * | 2018-11-30 | 2020-04-10 | 厦门理工学院 | High-density carbon dioxide forming equipment |
| CN114956080A (en) * | 2022-02-10 | 2022-08-30 | 厦门金瑞镒工贸有限公司 | Dry ice preparation device, exhaust structure of dry ice preparation device and exhaust method |
| CN114956080B (en) * | 2022-02-10 | 2024-02-06 | 厦门金瑞镒工贸有限公司 | Dry ice preparation device, exhaust structure of dry ice preparation device and exhaust method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107601507A (en) | The apparatus and method that carbon dioxide is recycled in dry ice preparation process | |
| CN207391013U (en) | The device of carbon dioxide is recycled in dry ice preparation process | |
| CN201329273Y (en) | Reactor for preparing iodine pentafluoride | |
| CN104482396B (en) | BOG recovery system with cold storage function | |
| CN220070763U (en) | Device for separating high-purity hydrogen chloride from byproduct hydrogen chloride of sucralose | |
| CN107265413A (en) | For improving the system that membrane separator prepares high-purity nitrogen efficiency | |
| CN104973358B (en) | Chemical tank pressure equaliser | |
| CN208593831U (en) | Small-entity polypropylene nitrogen circulation air-transport system | |
| CN207131554U (en) | Compressed air water cooling plant | |
| CN207029595U (en) | A kind of dust collecting and system | |
| CN107120525A (en) | A kind of liquid argon volatilization condensate recycling device and its argon gas condensation recycling method | |
| CN207215226U (en) | A kind of device for liquid ammonia quality flow measurement | |
| CN109320764A (en) | It is a kind of to industrialize pure PU foam alcoholysis recovery method and Special back receipts feeding device | |
| CN217391600U (en) | Control device of closed circulation spray dryer | |
| CN112479801A (en) | Electronic-grade propylene rectification and purification method | |
| CN208699148U (en) | The vacuum-packed blast resistance construction of gas-phase silica | |
| CN206777884U (en) | A kind of spray tower cooling system for producing wax powder | |
| CN203020565U (en) | Dry ice snowflake machine | |
| CN203743853U (en) | LNG refrigerant recycling system | |
| CN207237331U (en) | A kind of distillation system pressure equaliser of trimethyl gallium | |
| CN203336898U (en) | Stripping device for air separation liquid air delivery to argon tower | |
| CN210765201U (en) | Vacuum suction type anti-blocking coke oven gas purification equipment | |
| CN205403327U (en) | Processing apparatus of natural gas | |
| CN202414779U (en) | Vacuum absorption buffering device on fluid conveying line | |
| CN211411978U (en) | Xylene desolventizing system for amide dilute products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |