CN2367614Y - Throttle-freezing type carbon deoxide remover - Google Patents
Throttle-freezing type carbon deoxide remover Download PDFInfo
- Publication number
- CN2367614Y CN2367614Y CN 99201089 CN99201089U CN2367614Y CN 2367614 Y CN2367614 Y CN 2367614Y CN 99201089 CN99201089 CN 99201089 CN 99201089 U CN99201089 U CN 99201089U CN 2367614 Y CN2367614 Y CN 2367614Y
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- throttling
- carbon dioxide
- freezing type
- container
- outlet
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Abstract
The utility model relates to a throttle-freezing type carbon dioxide remover. The utility model is characterized in that a throttle valve and a vessel are arranged in a cold box, the outlet of the throttle valve is directly in a sealing connection with the inlet of the vessel, an upper flange at the upper part of the throttle valve is in a sealing connection with a casing of the cold box, and a filter which is used for separating the inlet of the vessel from the outlet of the vessel is arranged between the inlet and the outlet of the vessel; filter is composed of a support skeleton and a metal net which is wound on the support skeleton, and can also be made of porous ceramic material; the vessel and the throttle valve can be cylindrical, a heat insulating cover with heat-insulating material is arranged at the bottom of the vessel, and a heater can also be arranged at the outlet of the throttle valve. The utility model can be used for recover valuable carbon dioxide and dry ice.
Description
The utility model relates to the carbon dioxide removal device in the Refrigeration ﹠ Cryogenic Technique field, particularly relates to a kind of throttling freezing type carbon dioxide removal device.
In the flow process of gas refrigeration and liquefaction, usually need to remove the carbonic acid gas in the unstripped gas, otherwise carbonic acid gas can be frozen on heat exchanger or the cryogenic piping, result in blockage, device can't be moved.Usually technology that removes carbonic acid gas and the equipment that adopts has three kinds, and a kind of is with molecular sieve (or silica gel etc.) adsorbing and removing carbonic acid gas; A kind of is to use the chemisorption method, promptly adopts weakly alkaline solvents such as diethanolamine to absorb carbonic acid gas in the unstripped gas; Also having a kind of is the method for utilizing interchanger or regenerator to freeze, promptly allows unstripped gas by interchanger or regenerator the time, and temperature reduces gradually, and the carbonic acid gas in the unstripped gas is frozen in interchanger or regenerator and the pipeline thereof, and regularly switches blowing.Required refrigeration, the liquefying plant of the equipment of carbonic acid gas is all very huge in above-mentioned all removing unstripped gass, and it operates also more complicated.For example, day output is the liquefying plant of 32 ten thousand stere Sweet natural gases, even the content of carbonic acid gas is not high, as be 1%, also needing to build two diameters when adopting molecular sieve adsorption is 4 meters, highly is the pressurized vessel of 15 meters large-scale filling molecular sieve, also support equipments such as molecular sieve thermal regeneration, cooling to be arranged, and will switch once in per 8 hours, it is many not only to invest large equipment, operates also more complicated, trouble; Employing interchanger or regenerator refrigerated mode are removed the carbonic acid gas in the unstripped gas, need arrange interchanger in the ice chest or regenerator two groups regularly to switch, make equipment also very huge like this, increase investment, and only be applicable to and handle the very low unstripped gas of carbon dioxide content, when content is big, easily stop up, and frequent switching of having to, take a lot of work, time-consuming, easy damage equipment.
The purpose of this utility model is to provide a kind of throttling freezing type carbon dioxide removal device, temperature descends suddenly when utilizing the unstripped gas throttling, the principle that causes carbonic acid gas dry ice to separate out is removed the carbonic acid gas in the unstripped gas, this eradicator has solved huge, the defective such as obstruction very easily of former method equipment, have simple in structure, easy to operate, and invest advantages such as little, recyclable valuable carbonic acid gas dry ice.
Embodiment of the present utility model is as follows:
The throttling freezing type carbon dioxide removal device that the utility model provides, comprise ice chest, it is characterized in that: place throttling valve and container in the ice chest, the outlet of throttling valve directly is sealedly connected in the import of container, the upper flange on throttling valve top is connected with the ice chest body seal, is provided with the strainer that it is separated between the import of container and the outlet; Vent valve is housed on the container outlet, and strainer is made of support frame and the wire netting on it, also can be the integral filters made from porous ceramic film material, and its container and throttling valve can be circle, and the bottom is provided with the insulation cover of band lagging material; Unstripped gas passes through throttling valve, temperature, pressure descend, directly enter container, by strainer the time, carbonic acid gas dry ice in the unstripped gas is separated out to be frozen on the strainer, in order to prevent that the throttling valve outlet from having dry ice to stagnate and tying, can also electric heater be set in the throttling valve exit, in order to the outlet of heating throttling valve; In addition, consider rising-heat contracting-cold, the upper flange of throttling valve and ice chest shell leave the gap, or install expansion joint additional on container.
The utility model is owing to only be provided with throttling valve and container in ice chest, therefore structure is very simple, operation also is easy to, do not need sorbing materials such as molecular sieve in the container, do not need chemical solvents, do not need huge interchanger or regenerator yet, and the container dimensional in this throttling freezing type carbon dioxide removal device is only relevant with the quantity of required unstripped gas to be processed, and is therefore also much smaller.With the natural gas liquefaction device of handling 32 ten thousand steres above-mentioned every day is example, only needs 1 meter of two diameter, long 3 meters throttling freezing type carbon dioxide removal device to switch and uses.During switching, only need open the insulation cover of carbonic acid gas dry ice frozen, after removing dry ice, again insulation cover is built and got final product, avoided the operations such as thermal regeneration, cooling of molecular sieve adsorption device, also need not the problem of considering that molecular sieve lost efficacy and changes, also solved with interchanger or cold-storage gas device and handled the huge of carbon dioxide plants in the unstripped gas, defectives such as complicated and easy obstruction, and the dry ice that takes out can also produce extra economic benefit.
Further describe the utility model below in conjunction with drawings and Examples:
Accompanying drawing 1 is a structural representation of the present utility model, wherein:
Gasket 3 on throttling valve 1 container 2
Strainer 4 insulation covers 5 lower seal pads 6
Vent valve 7 electric heaters 8 insulation covers 9
Ice chest 10 upper flanges 11 sealing-rings 12
Fig. 1 is the utility model structural representation, it simultaneously also is a kind of structure example structure schematic representation intention preferably, as seen from the figure, in the ice chest 10 of the throttling freezing type carbon dioxide removal device that the utility model provides throttling valve 1 and container 2 are installed, for the ease of installing, the import of the throttling valve 1 among Fig. 1 is located at the side of valve, outlet is in the bottom of throttling valve, and directly be connected and communicate with the inlet seal at cylindrical vessel 2 tops, throttling valve 1 flange in the bottom is connected with container 2 tops, and there is last gasket 3 to seal, be provided with cylindrical filter 4 in the container 2, its bottom is provided with the insulation cover 5 of band lagging material, and insulation cover 5 usefulness lower flanges are connected with ice chest 10, and seals with lower seal pad 6.Unstripped gas flows into from the import of throttling valve 1, enters the cylinder filter 4 in the container 2 after the throttling, and the carbonic acid gas dry ice of separating out in its process is trapped in the strainer 4, and the unstripped gas after the filtration is discharged from the outlet of container 2, enters pipeline through vent valve 7; Result in blockage in the exit of throttling valve 1 in order to prevent that carbonic acid gas dry ice from stagnating to tie, can electric heater 8 be installed at the outlet at bottom place of throttling valve 1, in case of necessity, in order to the outlet of heating throttling valve 1; The thermal insulation layer 9 that has lagging material to constitute between throttling valve 1 and container 2 and the ice chest 10; In addition, consider the rising-heat contracting-cold problem, the upper flange 11 of throttling valve 1 can be made step, and leaves the gap between the shell of ice chest 10, and seals by the sealing-ring 12 of side seal.For the ease of removing carbonic acid gas, the utility model preferably tilts or vertical the installation when mounted, and throttling valve 1 in the above.During use, generally install two, in parallel, switching is used.When switching, only need open the vent valve and the throttling valve of standby eradicator, open its insulation cover and remove dry ice, again insulation cover is built standby getting final product.Use the utility model it should be noted that: should calculate the appropriate working temperature of eradicator according to the pressure of unstripped gas and the content of carbonic acid gas, to avoid dry ice just occurring before throttling.Be 4MPa for pressure for example, carbon dioxide content is 1.1% Sweet natural gas, and temperature should be not less than-98 ℃ before the throttling of its throttling freezing type carbon dioxide removal device.
Claims (5)
1. throttling freezing type carbon dioxide removal device, comprise ice chest, it is characterized in that: place current regulator and container in the ice chest, the outlet of throttling valve directly is sealedly connected in the import of container, the upper flange on throttling valve top is connected with the body seal of ice chest, is provided with the strainer that it is separated between the import of container and the outlet.
2. by the described throttling freezing type of claim 1 carbon dioxide removal device, it is characterized in that described strainer is made up of support frame and the wire netting on it.
3. by the described throttling freezing type of claim 1 carbon dioxide removal device, it is characterized in that the integral filters of described strainer for making with porous ceramic film material.
4. by claim 2 or 3 described throttling freezing type carbon dioxide removal devices, it is characterized in that described container and strainer are round shape, its end is provided with the insulation cover of band lagging material.
5. by the described throttling freezing type of claim 1 carbon dioxide removal device, it is characterized in that described throttling valve exit is equipped with the electric heater in order to the heating throttling valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201089 CN2367614Y (en) | 1999-01-28 | 1999-01-28 | Throttle-freezing type carbon deoxide remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201089 CN2367614Y (en) | 1999-01-28 | 1999-01-28 | Throttle-freezing type carbon deoxide remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2367614Y true CN2367614Y (en) | 2000-03-08 |
Family
ID=33996938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99201089 Expired - Fee Related CN2367614Y (en) | 1999-01-28 | 1999-01-28 | Throttle-freezing type carbon deoxide remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2367614Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108349065A (en) * | 2015-08-29 | 2018-07-31 | Ics冰雪清理系统有限公司 | Dry ice container for Dry ice cleaning device |
| CN110906039A (en) * | 2019-11-14 | 2020-03-24 | 上海交通大学 | Adjustable low-temperature throttle valve device for vacuum cooling box |
-
1999
- 1999-01-28 CN CN 99201089 patent/CN2367614Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108349065A (en) * | 2015-08-29 | 2018-07-31 | Ics冰雪清理系统有限公司 | Dry ice container for Dry ice cleaning device |
| US10888972B2 (en) | 2015-08-29 | 2021-01-12 | Ics Ice Cleaning Systems S.R.O. | Dry ice container for dry ice cleaning devices |
| CN110906039A (en) * | 2019-11-14 | 2020-03-24 | 上海交通大学 | Adjustable low-temperature throttle valve device for vacuum cooling box |
| CN110906039B (en) * | 2019-11-14 | 2022-03-29 | 上海交通大学 | Adjustable low-temperature throttle valve device for vacuum cooling box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |