CN104565803A - Perlite filling device - Google Patents
Perlite filling device Download PDFInfo
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- CN104565803A CN104565803A CN201410801784.8A CN201410801784A CN104565803A CN 104565803 A CN104565803 A CN 104565803A CN 201410801784 A CN201410801784 A CN 201410801784A CN 104565803 A CN104565803 A CN 104565803A
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Abstract
The invention provides a perlite filling device. The perlite filling device comprises a containing tank, a storage tank and a hot nitrogen generation device, wherein the containing tank is connected with the storage tank so that perlites in the containing tank can be placed into an interlayer of the storage tank; and the hot nitrogen generation device is connected with the containing tank and is used for drying the perlites in the containing tank by hot nitrogen before the perlites in the containing tank are placed into the interlayer of the storage tank. The perlite filling device comprises the containing tank, the storage tank and the hot nitrogen generation device; the hot nitrogen is used for dehydrating and drying the perlites in the containing tank before the perlites are added into the interlayer of the storage tank, so that the moisture content of the perlites is effectively reduced and the vacuumizing time of the interlayer of the storage tank can be shortened; and the steam content in the interlayer is small in a use process of the storage tank, so that the vacuum degree in the interlayer of the storage tank can be maintained for longer time and the service life of the storage tank is prolonged.
Description
Technical field
The present invention relates to low-temperature storage tank manufacturing technology, particularly relate to a kind of perlite filling device.
Background technique
Perlite is as the thermoinsulation material of filling in low-temperature powder insulated storage tank interlayer, the features such as bulk density is light, thermal conductivity is low owing to having, chemical stability is good, serviceability temperature scope is wide, nonpoisonous and tasteless, are thus widely used in the device such as ice chest for air separation equipment, cryogenic liquid vessel.
At present, the interlayer of low-temperature storage tank all leaves filling mouth, before storage tank interlayer is filled, first packed perlite is inserted in an accommodating tank, then by connecting pipeline, the perlite in accommodating tank is transported in storage tank interlayer, after storage tank interlayer is filled up, then to storage tank interlayer vacuum-pumping, within degree of vacuum is extracted into 5Pa, namely can obtain that there is the low-temperature storage tank that perlite fills interlayer.
The deficiencies in the prior art part is, after perlite is filled into storage tank interlayer, the time needed storage tank interlayer vacuum-pumping is longer, and in storage tank using process, the degree of vacuum in interlayer is difficult to maintain, and storage tank vacuum life is shorter.
Summary of the invention
The invention provides a kind of perlite filling device, the degree of vacuum for solving storage tank interlayer in prior art is difficult to the technical problem maintained, storage tank vacuum life is shorter.
The invention provides a kind of perlite filling device, comprising: accommodating tank, storage tank and hot nitrogen generation device;
Wherein, described accommodating tank is connected with described storage tank, for being filled in described storage tank interlayer by the perlite in described accommodating tank;
Described hot nitrogen generation device is connected with described accommodating tank, for before being filled in described storage tank interlayer by the perlite in described accommodating tank, dries the perlite in described accommodating tank with hot nitrogen.
Further, described hot nitrogen generation device comprises liquid nitrogen container, vaporizer and oven;
Wherein, described vaporizer is connected with described liquid nitrogen container, for vaporizing to the liquid nitrogen in described liquid nitrogen container, generates nitrogen;
Described oven is connected with described vaporizer, for heating described nitrogen, and Heat of Formation nitrogen.
Further, described vaporizer is connected by decompressor with described oven, and described decompressor is for regulating the pressure of described nitrogen.
Further, the bottom of described accommodating tank is provided with nitrogen inlet, and top is provided with nitrogen outlet, and described nitrogen inlet is connected with described hot nitrogen generation device.
Further, described perlite filling device also comprises: the first water ring pump;
Described first water ring pump is connected with described storage tank interlayer, for before being filled in described storage tank interlayer by the perlite in described accommodating tank, to described storage tank interlayer vacuum-pumping.
Further, described nitrogen generation device is connected with described storage tank, for utilize the first water ring pump to described storage tank interlayer vacuum-pumping before, pressure is greater than the hot nitrogen press-in storage tank interlayer of atmospheric pressure.
Further, described perlite filling device also comprises: the hopper be connected with described accommodating tank respectively and the second water ring pump;
Described hopper is used for filling perlite in described accommodating tank;
Described second water ring pump is used for filling perlitic in described accommodating tank while, vacuumizes described accommodating tank.
Further, described perlite filling device also comprises: Roots pump, for after being filled in described storage tank interlayer by the perlite in described accommodating tank, to described storage tank interlayer vacuum-pumping.
Further, described perlite filling device also comprises: hot blast unit, for heating described storage tank inner canister.
Further, described perlite filling device also comprises: vibration pump, for the perlite shake in storage tank interlayer being fallen apart.
Perlite filling device provided by the invention, comprise accommodating tank, storage tank and hot nitrogen generation device, before interlayer perlite being filled to storage tank, with hot nitrogen, the perlite in accommodating tank is dewatered, dried, effectively reduce perlitic water content, the time of storage tank interlayer vacuum-pumping can be shortened, and storage tank in use, because the moisture content in interlayer is less, the degree of vacuum in storage tank interlayer can maintain the long period, improves the vacuum life of storage tank.
Accompanying drawing explanation
The structural representation of the perlite filling device that Fig. 1 provides for the embodiment of the present invention one;
The structural representation of the perlite filling device that Fig. 2 provides for the embodiment of the present invention two;
The flow chart of the perlite filling method that Fig. 3 provides for the embodiment of the present invention three;
The flow chart of the perlite filling method that Fig. 4 provides for the embodiment of the present invention four.
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
The structural representation of the perlite filling device that Fig. 1 provides for the embodiment of the present invention one.As shown in Figure 1, the perlite filling device in this enforcement, can comprise: accommodating tank 1, storage tank 2 and hot nitrogen generation device 3;
Wherein, accommodating tank 1 is connected with storage tank 2, for being filled in storage tank 2 interlayer by the perlite in accommodating tank 1;
Hot nitrogen generation device 3 is connected with accommodating tank 1, for before being filled in storage tank 2 interlayer by the perlite in accommodating tank 1, dries the perlite in accommodating tank 1 with hot nitrogen.
Particularly, accommodating tank 1 can for having the sealed shell of tank of a constant volume, such as sand tank etc., accommodating tank 1 is for storing, heating perlite, perlite is specifically as follows pearlife, the top of accommodating tank 1 and bottom can be respectively arranged with and add sand mouth and sand jet outlet, and perlite can enter accommodating tank 1 via adding sand mouth.Accommodating tank 1 conventional in related domain has horizontal and vertical two kinds, if select horizontal accommodating tank, then, when to the Sandwich filling perlite of storage tank 2, the tank base of accommodating tank is understood some perlite and is difficult to be inhaled into storage tank interlayer, therefore can adopt vertical accommodating tank, avoid perlite to waste.
In actual applications, correspondingly can determine the volume of accommodating tank 1 according to the volume of the interlayer of storage tank 2, such as, the mezzanine space of LNG (Liquefied Natural Gas, LNG Liquefied natural gas) storage tank is about 32m
3, be (1.7 ~ 1.9) according to perlite packed space and the ratio of interlayer volume: 1 calculates, the volume of accommodating tank 1 should be greater than 60.8m
3, such as, volume can be selected to be 70m
3accommodating tank, or be divided into two 35m
3accommodating tank storage is deposited.
The bottom of accommodating tank 1 can be provided with nitrogen inlet, and top can be provided with nitrogen outlet, and the hot nitrogen that hot nitrogen generation device 3 generates enters accommodating tank 1 by the nitrogen inlet of bottom, dewaters to the perlite in accommodating tank 1, dries.Packed perlite water content in packaging, transportation process can increase, easy caking, and adsorb a large amount of incoagulable gas, if directly perlite is inserted in the interlayer of storage tank 2, then in storage tank 2 using process, because the water in perlite and gas constantly discharge, the degree of vacuum in storage tank 2 interlayer is difficult to maintain, and causes storage tank 2 vacuum life shorter.With hot nitrogen, re-heat, drying are carried out to the perlite in accommodating tank 1, perlitic water content can be effectively reduced, and displace the incoagulable gas of absorption in perlite.
Storage tank is the container of the various chemical substances for depositing gaseous state or liquid state, storage tank in the present embodiment can be mobile storage tank, also can be standing tank, the interlayer of storage tank 2 can offer filling mouth, the sand jet outlet of accommodating tank 1 is connected with the filling mouth of storage tank 2, perlite in accommodating tank 1, after drying through hot nitrogen, is transported in the interlayer of storage tank 2.After the interlayer of storage tank 2 fills up, then the interlayer vacuum-pumping to storage tank 2.
The perlite filling device that the present embodiment provides, comprise accommodating tank 1, storage tank 2 and hot nitrogen generation device 3, before interlayer perlite being filled to storage tank 2, with hot nitrogen, the perlite in accommodating tank 1 is dewatered, dried, effectively reduce perlitic water content, the time of storage tank 2 interlayer vacuum-pumping can be shortened, and storage tank 2 in use, because the moisture content in interlayer is less, degree of vacuum in storage tank 2 interlayer can maintain the long period, improves the vacuum life of storage tank 2.
Embodiment two
The structural representation of the perlite filling device that Fig. 2 provides for the embodiment of the present invention two.As shown in Figure 2, the perlite filling device in this enforcement, can comprise: accommodating tank 1, storage tank 2, hot nitrogen generation device 3, first water ring pump 4, hopper 5, second water ring pump 6 and Roots pump 7;
Wherein, accommodating tank 1 is connected with storage tank 2, for being filled in storage tank 2 interlayer by the perlite in accommodating tank 1.
Particularly, filling in early stage and later stage can be divided into fill two-part to the filling of storage tank 2 interlayer.The filling of its mid-early stage can comprise:
Step a, utilize the first water ring pump 4 pairs of storage tank 2 interlayer vacuum-pumpings, continue the first Preset Time;
Step b, the perlite in accommodating tank 1 is filled to storage tank 2 interlayer, continues the second Preset Time;
Repeat step a and step b, until the perlitic amount in storage tank 2 interlayer reaches the first predetermined threshold value.
Wherein, the first Preset Time and the second Preset Time can be determined according to actual conditions, such as, fill perlite 100 seconds after can vacuumizing 30 minutes at every turn.Storage tank 2 interlayer can be provided with multiple filling mouth, after certain number of times is filled to each filling mouth, change next mouth of filling and fill, more quickly storage tank 2 interlayer can be filled up and tamp.
When the perlitic amount in storage tank 2 interlayer reaches the first predetermined threshold value, early stage has filled.First predetermined threshold value can calculate according to the volume of storage tank 2 interlayer, can be the certain multiple such as about 1.9 times of storage tank 2 interlayer volume.
Later stage filling can comprise:
After perlitic amount in storage tank 2 interlayer reaches the first predetermined threshold value, repeat step c to steps d, until the perlitic amount in storage tank 2 interlayer reaches the second predetermined threshold value:
Step c, pressure is greater than hot nitrogen press-in storage tank 2 interlayer of atmospheric pressure, continues the 3rd Preset Time, be compacted to make the perlite in storage tank 2 interlayer;
Steps d, to storage tank 2 interlayer vacuum-pumping, continue the 4th Preset Time;
Step e, the perlite in accommodating tank 1 is filled to storage tank 2 interlayer, continues the 5th Preset Time.
Wherein, the step a that steps d and step e and early stage fill and step b is similar, and therefore, the later stage fills and is with the main distinction of filling early stage, before to storage tank 2 interlayer vacuum-pumping, is first pressed in storage tank 2 interlayer, by the perlite compacting in interlayer with hot nitrogen.The pressure of hot nitrogen should be greater than atmospheric pressure, is preferably 0.4MPa.
3rd Preset Time, the 4th Preset Time and the 5th Preset Time can be determined according to actual conditions, such as, can continue after 10 seconds by hot nitrogen press-in storage tank 2 interlayer, vacuumize 30 minutes, then fill perlite 70 seconds.Repeatedly after several, when the perlitic amount in storage tank 2 interlayer reaches the second predetermined threshold value, the later stage has filled.Second predetermined threshold value can be the certain multiple such as about 2.2 to 2.3 times of storage tank 2 interlayer volume.
The perlite of filling due to early stage has reached certain amount, it is just very difficult that continuation employing step a and step b fills more perlite in storage tank 2 interlayer, therefore in first that pressure is larger in the later stage fills hot nitrogen press-in storage tank 2 interlayer, perlite in interlayer is compacted, then the operation vacuumizing and fill is carried out, on the basis can filled in early stage, fill more perlite further in storage tank 2 interlayer, improve the heat-insulating property of storage tank 2.
The bottom of accommodating tank 1 is provided with nitrogen inlet, and top is provided with nitrogen outlet, and nitrogen inlet is connected with hot nitrogen generation device 3.
Hot nitrogen generation device 3, for before being filled in storage tank 2 interlayer by the perlite in accommodating tank 1, is dried the perlite in accommodating tank 1 with hot nitrogen.
Particularly, accommodating tank 1 is provided with nitrogen inlet and nitrogen outlet, and nitrogen inlet is connected with hot nitrogen generation device 3, and hot nitrogen generation device 3 specifically can comprise liquid nitrogen container 31, vaporizer 32 and oven 33 by hot nitrogen generation device 3; Wherein, vaporizer 32 is connected with liquid nitrogen container 31, for vaporizing to the liquid nitrogen in liquid nitrogen container 31, generates nitrogen; Oven 33 is connected with vaporizer 32, for heating nitrogen, and Heat of Formation nitrogen; In addition, vaporizer 32 can be connected by decompressor 34 with oven 33, and decompressor 34 is for regulating the pressure of hot nitrogen.
Add after accommodating tank 1 until perlite, drying, dehydration can be carried out with hot nitrogen to perlite.In addition, during oven dry, hot nitrogen is discharged from the nitrogen outlet on accommodating tank 1 top, can also take the perlite of undersized out of accommodating tank 1, the perlite granularity in accommodating tank 1 is met the demands as dust.Preferably, be high-purity (99.99%) for drying perlitic hot nitrogen, temperature is 120 °, and pressure is 0.2MPa, and drying time continues 24 hours.
First water ring pump 4 is connected with storage tank 2 interlayer, for fill early stage and later stage filling process in, storage tank 2 interlayer is vacuumized, can also before the perlite in accommodating tank 1 be filled in storage tank 2 interlayer, to storage tank 2 interlayer vacuum-pumping.
Nitrogen generation device 3 is also connected with storage tank 2, for before utilizing the first water ring pump 4 pairs of storage tank 2 interlayer vacuum-pumpings, pressure is greater than hot nitrogen press-in storage tank 2 interlayer of atmospheric pressure.
Owing to containing a large amount of steam and incoagulable gas in storage tank 2 interlayer, therefore, before the perlite after oven dry is added into storage tank 2 interlayer, first the air displacement in storage tank 2 interlayer to be gone out.Concrete displacement step can comprise: by hot nitrogen press-in in storage tank 2 interlayer, until the pressure in storage tank 2 interlayer reaches the first threshold pressure; After the 6th Preset Time, the hot nitrogen in storage tank 2 interlayer is got rid of.
Preferably, first threshold pressure can be 0.2MPa, 6th Preset Time can be 6 hours, and can be 120 ° for the temperature displacing the hot nitrogen of air in storage tank 2 interlayer, hot nitrogen is entered by the filling mouth of storage tank 2 interlayer, after the hot nitrogen be filled with reaches the first threshold pressure, close and fill mouth, hot nitrogen and air are fully mixed, after the 6th Preset Time in storage tank 2 interlayer, again the filling mouth of storage tank 2 interlayer is opened, hot nitrogen and air are discharged.As required, can carry out repeatedly replacing the air in storage tank 2 interlayer.
Hopper 5 is connected with accommodating tank 1 respectively with the second water ring pump 6, and hopper 5 for filling perlite in accommodating tank 1; Second water ring pump 6, for filling perlitic in accommodating tank 1 while, vacuumizes accommodating tank 1.
Wherein, while perlite being added into accommodating tank 1, the second water ring pump 6 can be utilized to vacuumize accommodating tank 1.Particularly, the second water ring pump 6 is connected with accommodating tank 1, accommodating tank 1 can offer and add sand mouth, add sand mouth and be connected with hopper 5, be specifically designed to and carry perlite in accommodating tank 1.In process perlite being added into accommodating tank 1, first open the second water ring pump 6, that then opens accommodating tank 1 adds sand mouth, pours packed perlite into hopper 5, the perlite in hopper 5 can be drawn into accommodating tank 1 by hopper 5 and the pressure difference of accommodating tank 1.
In addition, vibrating screen panel can also be set on hopper 5, to be removed by the perlite of larger particles in advance.Because usual perlite granularity can effectively meet Cryo Heat Insulation requirement between 0.1-1.2mm, therefore can by placing the vibrating screen panel of suitable size of mesh, the perlite particle avoiding granularity to be greater than 1.2mm enters accommodating tank 1.
Roots pump 7 is connected with storage tank 2, for after being filled in storage tank 2 interlayer by the perlite in accommodating tank 1, to storage tank 2 interlayer vacuum-pumping.
Particularly, after the perlitic amount in storage tank 2 interlayer of stating reaches the second predetermined threshold value, utilize Roots pump 7 pairs of storage tank 2 interlayer vacuum-pumpings, until the pressure in storage tank 2 interlayer reaches the second threshold pressure.
Wherein, the second threshold pressure can be 5Pa.After early stage fills and the later stage fills, can first carry out just vacuumizing with the first water ring pump 4 pairs of storage tank 2 interlayers, after degree of vacuum reaches about 100Pa, recycling Roots pump vacuumizes, within degree of vacuum is extracted into 5Pa further to storage tank 2 interlayer.
In the perlite filling device that the present embodiment provides, because hot nitrogen generation device 3 is connected with storage tank 2 interlayer respectively with accommodating tank 1, water and the incoagulable gas of perlite inside and storage tank 2 interlayer can be displaced, therefore the storage tank 2 interlayer vacuum-pumping time is effectively shortened, and be filled with more perlite in storage tank 2, make the degree of vacuum in storage tank 2 interlayer to maintain the long period, further increase the vacuum life of storage tank 2.In addition, the perlite in accommodating tank 1 dried and the air of storage tank 2 interlayer is replaced, all can adopt a set of nitrogen generation device 3, improve working efficiency, reduce manufacture cost.
On the basis of the technological scheme provided at above-described embodiment, preferably, perlite filling device also comprises: hot blast unit, for heating storage tank 2 inner canister.Before being filled in storage tank 2 interlayer by the perlite in accommodating tank 1, hot blast unit can be utilized to heat storage tank 2 inner canister.Wherein, heating-up temperature can control below 200 °, preferably 120 ° to 150 °, hot blast unit is utilized to heat storage tank 2 inner canister, make the temperature also corresponding rising of storage tank 2 interlayer, the steam be conducive in storage tank 2 interlayer is discharged, and improves the vacuum life of storage tank 2.
On the basis of the technological scheme provided at above-described embodiment, preferably, perlite filling device also comprises: vibration pump, for by loose for the perlite shake in storage tank 2 interlayer.Particularly, multiple vibration pump can be evenly set on the outer wall of storage tank 2, while the perlite in accommodating tank 1 is filled in storage tank 2 interlayer, vibration pump shakes on the outer wall of storage tank 2, the perlite in storage tank 2 interlayer can be driven to shake, by loose for perlite shake, after avoiding storage tank 2 to run a period of time, perlite particle sedimentation in interlayer and cause local location to form cavity, causes the cryogenic media in tank and outside air to carry out heat exchange.
Embodiment three
The flow chart of the perlite filling method that Fig. 3 provides for the embodiment of the present invention three.As shown in Figure 3, the perlite filling method in the present embodiment, can comprise:
Step 301, perlite to be added in accommodating tank.
Step 302, with hot nitrogen, the perlite in described accommodating tank to be dried.
Step 303, the perlite in described accommodating tank to be filled in storage tank interlayer.
Perlite filling device in the present embodiment, may be used for performing the perlite filling method in embodiment one, repeats no more herein.
In the perlite filling method that the present embodiment provides, after perlite is inserted accommodating tank, first with hot nitrogen, perlite in tank is dewatered, dried, effectively reduce perlitic water content, and then perlite is filled in storage tank interlayer, the time of storage tank interlayer vacuum-pumping can be shortened, and storage tank in use, because the moisture content in interlayer is less, the degree of vacuum in storage tank interlayer can maintain the long period, improves the vacuum life of storage tank.
Embodiment four
The flow chart of the perlite filling method that Fig. 4 provides for the embodiment of the present invention four.As shown in Figure 4, the perlite filling method in the present embodiment, can comprise:
Step 401, perlite to be added in accommodating tank.
Step 402, with hot nitrogen, the perlite in described accommodating tank to be dried.
Step 403, the air displaced with hot nitrogen in storage tank interlayer.
Step 404, the perlite in described accommodating tank to be filled in storage tank interlayer.
Step 405, storage tank interlayer finally to be vacuumized.
Perlite filling device in the present embodiment, may be used for performing the perlite filling method in embodiment two, repeats no more herein.
In the perlite filling method that the present embodiment provides, first hot nitrogen is utilized to be dried by the perlite in accommodating tank, then with hot nitrogen, the air in storage tank interlayer is replaced, effectively reduce perlitic water content, and when filling perlite in storage tank interlayer, the hot nitrogen utilizing pressure larger is by the perlite compacting in interlayer, and then carry out vacuumizing and padding, owing to having displaced water and the incoagulable gas of perlite inside and storage tank interlayer, therefore can complete perlite within 5 days fill and vacuumize flow process, be less than the time of in industry average 15-20 days, and be filled with more perlite in storage tank, the degree of vacuum in storage tank interlayer is made to maintain the long period, further increase the vacuum life of storage tank.In addition, the perlite in accommodating tank dried and the air of storage tank interlayer is replaced, all can adopt a set of nitrogen generation device, improve working efficiency, reduce manufacture cost.
On the basis of the technological scheme provided at above-described embodiment, preferably, before the perlite in accommodating tank is filled in storage tank interlayer, also comprise: utilize hot blast unit to heat described storage tank inner canister.Wherein, heating-up temperature can control below 200 °, preferably 120 ° to 150 °, utilizes hot blast unit to the heating of storage tank inner canister, makes the also corresponding rising of the temperature of storage tank interlayer, and the steam be conducive in storage tank interlayer is discharged, and improves the vacuum life of storage tank.
On the basis of the technological scheme provided at above-described embodiment, preferably, while being filled in storage tank interlayer by the perlite in accommodating tank, utilize vibration pump by loose for the perlite shake in storage tank interlayer.Particularly, multiple vibration pump can be evenly set on storage tank, perlite in storage tank interlayer can shake loose by vibration pump, after avoiding storage tank to run a period of time, perlite particle sedimentation in interlayer and cause local location to form cavity, causes the cryogenic media in tank and outside air to carry out heat exchange.
Last it is noted that above each embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristics; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technological scheme.
Claims (10)
1. a perlite filling device, comprising: accommodating tank, storage tank and hot nitrogen generation device;
Wherein, described accommodating tank is connected with described storage tank, for being filled in described storage tank interlayer by the perlite in described accommodating tank;
Described hot nitrogen generation device is connected with described accommodating tank, for before being filled in described storage tank interlayer by the perlite in described accommodating tank, dries the perlite in described accommodating tank with hot nitrogen.
2. perlite filling device according to claim 1, is characterized in that, described hot nitrogen generation device comprises liquid nitrogen container, vaporizer and oven;
Wherein, described vaporizer is connected with described liquid nitrogen container, for vaporizing to the liquid nitrogen in described liquid nitrogen container, generates nitrogen;
Described oven is connected with described vaporizer, for heating described nitrogen, and Heat of Formation nitrogen.
3. perlite filling device according to claim 2, is characterized in that,
Described vaporizer is connected by decompressor with described oven, and described decompressor is for regulating the pressure of described nitrogen.
4. perlite filling device according to claim 1, is characterized in that, the bottom of described accommodating tank is provided with nitrogen inlet, and top is provided with nitrogen outlet, and described nitrogen inlet is connected with described hot nitrogen generation device.
5. the perlite filling device according to any one of claim 1-4, is characterized in that, also comprise: the first water ring pump;
Described first water ring pump is connected with described storage tank interlayer, for before being filled in described storage tank interlayer by the perlite in described accommodating tank, to described storage tank interlayer vacuum-pumping.
6. perlite filling device according to claim 5, it is characterized in that, described nitrogen generation device is connected with described storage tank, for utilize the first water ring pump to described storage tank interlayer vacuum-pumping before, pressure is greater than the hot nitrogen press-in storage tank interlayer of atmospheric pressure.
7. perlite filling device according to claim 5, is characterized in that, also comprise: the hopper be connected with described accommodating tank respectively and the second water ring pump;
Described hopper is used for filling perlite in described accommodating tank;
Described second water ring pump is used for filling perlitic in described accommodating tank while, vacuumizes described accommodating tank.
8. perlite filling device according to claim 5, is characterized in that, also comprise: Roots pump, for after being filled in described storage tank interlayer by the perlite in described accommodating tank, to described storage tank interlayer vacuum-pumping.
9. according to the perlite filling device that claim 5 is stated, it is characterized in that, also comprise: hot blast unit, for heating described storage tank inner canister.
10. perlite filling device according to claim 5, is characterized in that, also comprise: vibration pump, for the perlite shake in storage tank interlayer being fallen apart.
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| CN201410801784.8A CN104565803A (en) | 2014-12-19 | 2014-12-19 | Perlite filling device |
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|---|---|---|---|
| CN201410801784.8A CN104565803A (en) | 2014-12-19 | 2014-12-19 | Perlite filling device |
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| CN106892214A (en) * | 2017-03-15 | 2017-06-27 | 张家港市华孚实业有限公司 | The short-distance transport method of expanded perlite |
| CN109386729A (en) * | 2018-11-28 | 2019-02-26 | 宜昌江峡船用机械有限责任公司 | A kind of pearlife fill system and its fill method |
| CN110410660A (en) * | 2019-07-30 | 2019-11-05 | 南阳杜尔气体装备有限公司 | A kind of improved cryogenic tank pearlife packing method |
| CN110816912A (en) * | 2019-09-27 | 2020-02-21 | 新兴能源装备股份有限公司 | Method and device for filling pearlife |
| CN111810832A (en) * | 2020-08-05 | 2020-10-23 | 杭州富士达特种材料股份有限公司 | Vacuum multilayer heat-insulation low-temperature container interlayer nitrogen flushing and replacing system and method |
| EP4174361A4 (en) * | 2020-06-26 | 2024-03-06 | Kawasaki Heavy Ind Ltd | Double-shell tank and vessel |
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