A kind of cryogenic insulated cylinder pumped vacuum systems
Technical field
The utility model relates to a kind of cryogenic insulated cylinder pumped vacuum systems.
Background technique
Cryogenic insulated cylinder, as a kind of low-temperature pressure container, is mainly used in transporting liquid oxygen, liquid nitrogen, liquid argon, LNG gas, and the gas of continuous use can be provided.In the unsettled courage outside of supporting structure of inner bag by two ends end to end.Gas cylinder chuck is designed to high vacuum, multilayer heat insulation winding structure, and inner bag is used for storing cryogenic fluids.Inner bladder outer wall is tied with multilayer insulant and has superpower insulation capacity.Interlayer (between inner bag and outer courage) is pumped into vacuum and is formed good heat-insulation system simultaneously.
Common cryogenic insulated cylinder pumped vacuum systems generally comprises the some gas cylinders that are arranged in heating in vacuum room, gas cylinder interlayer is directly connected with vacuum pumping device and carries out vacuum pumping, because gas cylinder band height is little, area is large, the single hole that vacuumizes will be taken out the air in airtight gas cylinder interlayer to the greatest extent, consuming time longer.
Model utility content
Technical problem to be solved in the utility model is: provide a kind of vacuumize efficiency high cryogenic insulated cylinder pumped vacuum systems.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of cryogenic insulated cylinder pumped vacuum systems, comprise the some gas cylinders that are arranged in heating in vacuum room, gas cylinder interlayer is connected with vacuum pumping device, described gas bottle outside lining is provided with air input joint, and air input joint is connected with interlayer heating cabinet, dehumidifier and pressurized air inlet pipe successively by pipeline.
Described in this patent cryogenic insulated cylinder pumped vacuum systems further preferred technological scheme be: being connected with inner bag heating cabinet and blower successively by pipeline from boost port of described cylinder liner.
As the preferred scheme of one, between described gas cylinder interlayer and vacuum pumping device, be provided with cold well.
As the preferred scheme of one, between described gas cylinder, be provided with the pressure pipeline of the each gas cylinder interlayer of UNICOM, pressure pipeline is provided with vacuum measuring instrument.
The beneficial effects of the utility model are: because gas bottle outside lining is provided with air input joint, air input joint is connected with interlayer heating cabinet and pressurized air inlet pipe successively by pipeline, adopt the pressurized air after heating to carry out heat drying to interlayer, remove moisture fast, energy consumption is little, nitrogen replacement is clean, and efficiency is high, can greatly shorten the pumpdown time.
Due to being connected with inner bag heating cabinet and blower successively by pipeline from boost port of described cylinder liner, when interlayer vacuum-pumping, inner bag is heated, make the evaporation of interlayer moisture faster.
Accompanying drawing explanation
Fig. 1 is embodiment's 1 of the present utility model structural representation.
Fig. 2 is embodiment's 2 of the present utility model structural representation.
In Fig. 1 to Fig. 2: 1. heating in vacuum room, 2. gas cylinder, 201. gas cylinder interlayers, 202. gas bottle outside linings, 203. air input joints, 204. from boost port, 3. vacuum pumping device, 4. interlayer heating cabinet, 5. pressurized air inlet pipe, 6. inner bag heating cabinet, 7. blower, 8. dehumidifier, 9. cold well, 10. pressure pipeline, 11. vacuum measuring instruments.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
Embodiment 1 as shown in Figure 1, a kind of cryogenic insulated cylinder pumped vacuum systems, comprise the some gas cylinders 2 that are arranged in heating in vacuum room 1, gas cylinder interlayer 201 is connected with vacuum pumping device 3, described gas bottle outside lining 202 is provided with air input joint 203, and air input joint 203 is connected with interlayer heating cabinet 4, dehumidifier 8 and pressurized air inlet pipe 5 successively by pipeline.
During the vacuumizing of cryogenic insulated cylinder pumped vacuum systems as above, first pressurized air enters in gas cylinder interlayer 201 through interlayer heating cabinets 4 from dehumidifier 8, and interlayer is heated; Then, from dehumidifier 8, through interlayer heating cabinet, 4 heating enter in gas cylinder interlayer 201 until degree of vacuum reaches setting value nitrogen.
Embodiment 2 as shown in Figure 2, a kind of cryogenic insulated cylinder pumped vacuum systems, comprise the some gas cylinders 2 that are arranged in heating in vacuum room 1, gas cylinder interlayer 201 is connected with vacuum pumping device 3, described gas bottle outside lining 202 is provided with air input joint 203, and air input joint 203 is connected with interlayer heating cabinet 4 and pressurized air inlet pipe 5 successively by pipeline.Being connected with inner bag heating cabinet 6 and blower 7 successively by pipeline from boost port 204 of described cylinder liner.Between described interlayer heating cabinet 4 and pressurized air inlet pipe 5, be provided with dehumidifier 8.Between described gas cylinder interlayer 201 and vacuum pumping device 3, be provided with cold well 9.2 of described gas cylinders are provided with the pressure pipeline 10 of the each gas cylinder interlayer 201 of UNICOM, and pressure pipeline 10 is provided with vacuum measuring instrument 11.
During the vacuumizing of further cryogenic insulated cylinder 2 pumped vacuum systems of having improved as above, first, pressurized air enters in gas cylinder interlayer 201 through interlayer heating cabinets 4 from dehumidifier 8, and interlayer is carried out to heat drying; Meanwhile, air heats cylinder liner by inner bag heating cabinet 6 through blower 7;
Then, nitrogen enters in gas cylinder interlayer 201 through interlayer heating cabinet 4 from dehumidifier 8, and meanwhile, air heats cylinder liner by inner bag heating cabinet 6 through blower 7;
Finally, gas cylinder interlayer 201 is vacuumized until degree of vacuum reaches setting value.
The above embodiments principle and effect thereof that only illustrative the utility model is created, and the embodiment of part utilization, but not for limiting the utility model; It should be pointed out that for the person of ordinary skill of the art, not departing under the prerequisite of the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.