CN101832466B - Limited charging device, low-temperature liquid container and limited charging method - Google Patents
Limited charging device, low-temperature liquid container and limited charging method Download PDFInfo
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- CN101832466B CN101832466B CN 200910079927 CN200910079927A CN101832466B CN 101832466 B CN101832466 B CN 101832466B CN 200910079927 CN200910079927 CN 200910079927 CN 200910079927 A CN200910079927 A CN 200910079927A CN 101832466 B CN101832466 B CN 101832466B
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Abstract
The invention discloses a limited charging device of a low-temperature liquid container. The limited charging device is arranged in the low-temperature liquid container and comprises a pressure-bearing cavity, a floater device and a flow arresting block, wherein the pressure-bearing cavity is provided with a liquid inlet and a liquid outlet arranged on the top of the pressure-bearing cavity; the floater device comprises a floater and a floater guide rod arranged on the top of the floater; the floater guide rod passes through the whole pressure-bearing cavity and passes out of the liquid outlet; and the flow arresting block is limited in the pressure-bearing cavity, is fixed with the floater guide rod and is used for blocking the liquid outlet. Correspondingly, the invention provides the low-temperature liquid container with the device, thereby low-temperature media can be remotely charged without emission; the limited charging device not only saves energy and protects environment but also improves the safe reliability of charging, has higher charging speed and is more humanized.
Description
Technical field
The present invention relates to mechanical field, relate in particular to a kind of charging device of limiting the quantity of, cryogenic liquid vessel and the methods for filling of limiting the quantity of.
Background technique
Industrial cryogenic media commonly used, as liquid oxygen, liquid nitrogen, liquid argon, LNG (Liquefied Natural Gas, LNG Liquefied natural gas) equitemperature is lower, so the container of splendid attire cryogenic media is made up of inside and outside two-layer container usually at present, wherein interlayer adopts the vacuum insulation form, in order to the leaking heat of reduction environment to cryogenic media, thereby makes cryogenic media keep lower loss in storage and transportation process.
Because the temperature of cryogenic media is lower, is example with the liquid nitrogen, operating temperature about-196 ℃, because it is constantly vaporized in filling process, causes jar internal pressure to raise usually, as shown in Figure 1, so filling of common vacuum insulation vessel all adopts discharging to fill.One side fills by topping up pipe 1, opens outlet valve 20 simultaneously, and the steam of draining in order to a reduction jar internal pressure, thereby keeps continuing to fill with filling the stable pressure reduction in source.Like this, a part of cryogenic media has just been wasted with the form of steam.
Simultaneously, consider and be vapor liquid equilibrium under the cryogenic media state of equilibrium, fullness rate for cryogenic media also has certain control, usually all show that by setting the survey full packages this jar is full of, promptly surveying has cryogenic liquide to flow out from liquid discharging valve 30 in the full packages, show jar to have reached the design fullness rate, needs then manually to close to fill the source valve, and the topping up valve on the low-temperature (low temperature) vessel, and then stop to fill.
Cryogenic media such as liquid nitrogen are to obtain liquid nitrogen through complicated manufacturing process, and the energy and expense additional in the conversion process are very high.At energy scarcity nowadays, under the overall situation of energy-conserving and environment-protective,, how fundamentally to improve it and fill the cryogenic media device for as why not wasting on the cryogenic media of cost great cost acquisition, thereby reach the purpose that does not waste energy, caused that the researcher pays close attention to widely.
Comprehensively above-mentioned, the problem that the technology that fills of the vacuum insulation vessel of existing cryogenic media exists has: the first, the cryogenic gas discharging is arranged in the process that fills, and cause the waste of environmental pollution and cryogenic media; The second, when survey is full in the filling process, there is cryogenic liquide to flow out, cause the waste and the befouling environment of cryogenic liquide; The 3rd, in the topping up process, and need staff's operation of focusing one's attention on after being full of, in time close related valve, hommization is relatively poor; The 4th, Low Temperature Steam and fluid discharge are arranged, dangerous; The 5th, be that liquid discharging valve is forgotten and opened if survey full valve, may cause to overcharge, surpassing cryogenic media vessel safety liquid level, may cause the danger that builds the pressure and explode jar.Therefore, the technology that fills of the vacuum insulation vessel of existing cryogenic media on reality is used, obviously exists inconvenience and defective, so be necessary to be improved.
Summary of the invention
For solving the problems of the technologies described above, one object of the present invention is to provide a kind of charging device of limiting the quantity of of cryogenic liquid vessel to reach and cryogenic liquid vessel, and limit the quantity of to this cryogenic liquid vessel and to fill the method for cryogenic liquide, it can realize not having long-range the filling of discharging, be energy-conserving and environment-protective, increased the safety reliability that fills again, and the speed that fills is very fast, hommization more.
To achieve these goals, the invention provides a kind of cryogenic liquid vessel the charging device of limiting the quantity of, this charging device of limiting the quantity of is arranged in the cryogenic liquid vessel, it comprises a pressure pocket, has the liquid outlet that a liquid entering hole and is positioned at the top; One ball cock device comprises that a float and is positioned at the float guide rod at this float top, and this float guide rod runs through whole pressure pocket, and passes from this liquid outlet; And a fluid stopping piece, be limited in this pressure pocket, and fix with this float guide rod, be used for this liquid outlet of shutoff.
According to the charging device of limiting the quantity of of the present invention, the described charging device of limiting the quantity of comprises that one is used for the first spacing guide pipe, is fixed on the top of described pressure pocket, closely cooperates with described float guide rod.
According to the charging device of limiting the quantity of of the present invention, wherein said first guide pipe has some liquid outlet openings.
According to the charging device of limiting the quantity of of the present invention, the wherein said charging device of limiting the quantity of comprises that one is used for the second spacing guide pipe, is arranged on the bottom of this pressure pocket, closely cooperates with this float guide rod.
According to the charging device of limiting the quantity of of the present invention, the wherein said charging device of limiting the quantity of also is provided with a guiding fluid baffle plate, is obliquely installed in this pressure pocket, is used to guide the liquid that is filled into this pressure pocket from this liquid entering hole.
According to the charging device of limiting the quantity of of the present invention, wherein said guiding fluid baffle plate upper end is affixed with described pressure pocket inside ceiling panel, and described guiding fluid baffle plate lower end utilizes the side wall surface of outstanding a plurality of supports and described pressure pocket affixed.
According to the charging device of limiting the quantity of of the present invention, wherein said a plurality of outstanding supports are uniform on the outer rim of described guiding fluid baffle plate lower end.
According to the charging device of limiting the quantity of of the present invention, the wherein said charging device of limiting the quantity of also is provided with the liquid-discharging plate of a tape guide, comprises a base plate, is provided with to be used for the 3rd spacing guide pipe, and itself and this float guide rod closely cooperates; One sidewall is fixed on this pressure pocket; With some leakage openings.
According to the charging device of limiting the quantity of of the present invention, wherein said some leakage openings are uniform on described sidewall.
According to the charging device of limiting the quantity of of the present invention, the sealing surface that wherein said fluid stopping piece and described liquid outlet are complementary is the conical surface or cylinder.
According to the charging device of limiting the quantity of of the present invention, wherein said liquid entering hole is arranged on the top or the sidepiece of described pressure pocket.
The present invention also provides a kind of cryogenic liquid vessel with the above-mentioned charging device of limiting the quantity of, this cryogenic liquid vessel comprises the topping up pipe, be provided with the charging device of limiting the quantity of in the described cryogenic liquid vessel, the described charging device of limiting the quantity of comprises a pressure pocket, has the liquid outlet that a liquid entering hole and that is communicated with this topping up pipe is positioned at the top; One ball cock device comprises that a float and is positioned at the float guide rod at this float top, and this float guide rod runs through whole pressure pocket, and passes from this liquid outlet; And a fluid stopping piece, be limited in this pressure pocket, and fix with this float guide rod, be used for this liquid outlet of shutoff.
According to cryogenic liquid vessel provided by the invention, the wherein said charging device of limiting the quantity of comprises that one is used for the first spacing guide pipe, is fixed on the top of described pressure pocket, closely cooperates with described float guide rod.
According to cryogenic liquid vessel provided by the invention, wherein said first guide pipe has some liquid outlet openings.
According to cryogenic liquid vessel provided by the invention, the wherein said charging device of limiting the quantity of comprises that one is used for the second spacing guide pipe, is arranged on the bottom of this pressure pocket, closely cooperates with this float guide rod.
According to cryogenic liquid vessel provided by the invention, the wherein said charging device of limiting the quantity of also is provided with a guiding fluid baffle plate, is obliquely installed in this pressure pocket, is used to guide the liquid that is filled into this pressure pocket from this liquid entering hole.
According to cryogenic liquid vessel provided by the invention, wherein said guiding fluid baffle plate upper end is affixed with described pressure pocket inside ceiling panel, and described guiding fluid baffle plate lower end utilizes the side wall surface of outstanding a plurality of supports and described pressure pocket affixed.
According to cryogenic liquid vessel provided by the invention, wherein said a plurality of outstanding supports are uniform on the outer rim of described guiding fluid baffle plate lower end.
According to cryogenic liquid vessel provided by the invention, the wherein said charging device of limiting the quantity of also is provided with the liquid-discharging plate of a tape guide, comprises a base plate, is provided with to be used for the 3rd spacing guide pipe, and itself and this float guide rod closely cooperates; One sidewall is fixed on this pressure pocket; With some leakage openings.
According to cryogenic liquid vessel provided by the invention, wherein said some leakage openings are uniform on described sidewall.
According to cryogenic liquid vessel provided by the invention, the sealing surface that wherein said fluid stopping piece and described liquid outlet are complementary is the conical surface or cylinder.
According to cryogenic liquid vessel provided by the invention, wherein said liquid entering hole is arranged on the top or the sidepiece of described pressure pocket.
The present invention also provides a kind of methods for filling of limiting the quantity of that utilizes above-mentioned cryogenic liquid vessel to fill cryogenic liquide, comprises a pressure pocket is provided, and a liquid entering hole and is positioned at the liquid outlet at top, sprays from the top so that be filled into the cryogenic liquide of this pressure pocket; One ball cock device is provided, and it comprises that a float and is positioned at the float guide rod at this float top, and this float guide rod runs through whole pressure pocket, and passes from this liquid outlet; And a fluid stopping piece, be limited in this pressure pocket, and fix with this float guide rod, when the cryogenic liquide that constantly pours reached predetermined height, the float of come-up promoted this this liquid outlet of fluid stopping piece shutoff.
The present invention is by establishing the charging device of limiting the quantity of in cryogenic liquid vessel, this charging device of limiting the quantity of comprises a pressure pocket, pressure pocket is provided with liquid entering hole and liquid outlet, cryogenic liquide can fill into pressure pocket by liquid entering hole, enter into cryogenic liquid vessel by liquid outlet, the described charging device of limiting the quantity of also comprises a ball cock device, this ball cock device comprises the float guide rod and is fixed in the float of float guide rod bottom, the float guide rod runs through whole pressure pocket, and pass from liquid outlet, described ball cock device can fluctuate, the float guide rod also is connected with a fluid stopping piece, this fluid stopping piece is limited in the pressure pocket, and when cryogenic liquid vessel constantly charged into cryogenic liquid vessel, described fluid stopping piece was along with together motion straight up of ball cock device, when the cryogenic liquide liquid level in the cryogenic liquid vessel equals or is higher than predetermined when being full of liquid level, the fluid stopping piece stops up liquid outlet, makes that the vapor pressure in pressure pocket and the topping up pipe rises rapidly, fills when big pressure reduction is sensed in the source and can cut off supply.Whereby, to filling of cryogenic media, can realize not having long-range the filling of discharging, i.e. energy-conserving and environment-protective have increased the safety reliability that fills again, and the speed that fills is very fast, more hommization.
Description of drawings
Fig. 1 is the schematic representation of the cryogenic liquid vessel of prior art;
Figure 2 shows that and adopt the cryogenic liquid vessel of the charging device of limiting the quantity of to fill schematic representation;
Fig. 3 is the structural drawing of the charging device of limiting the quantity of provided by the invention;
Fig. 4 A is the external view of first guide pipe shown in Fig. 3;
Fig. 4 B is the longitudinal sectional view of first guide pipe shown in Fig. 4 A;
Fig. 5 A is the external view of the baffle plate of guiding fluid shown in Fig. 3;
Fig. 5 B is the sectional view along A-A line among Fig. 5 A;
Fig. 6 A is the longitudinal sectional view of the liquid-discharging plate of tape guide shown in Fig. 3;
Fig. 6 B is the sectional view along B-B line among Fig. 6 A;
Fig. 7 A is the initial schematic representation of filling of cryogenic liquid vessel provided by the invention;
Fig. 7 B be cryogenic liquid vessel provided by the invention fill the end schematic representation.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Figure 2 shows that and adopt the cryogenic liquid vessel 50 of the charging device 40 of limiting the quantity of to fill schematic representation.Cryogenic liquid vessel 50 comprises a topping up pipe 1 and the charging device 40 of limiting the quantity of that is arranged in the cryogenic liquid vessel 50.Topping up pipe 1 one ends insert the charging device 40 of limiting the quantity of, and another termination fills the source.After filling beginning, fill the source cryogenic liquide of certain pressure is injected by topping up pipe 1, enter into cryogenic liquid vessel 50 again by the charging device 40 of limiting the quantity of then.In filling process, the full valve 30 of outlet valve 20 and survey all is in closed condition, thereby does not have leaking outside of cryogenic liquide in filling process, has promptly saved the energy, has protected environment again.
Fig. 3 is the structural drawing of the charging device of limiting the quantity of provided by the invention.The described charging device 40 of limiting the quantity of is arranged in the cryogenic liquid vessel 50, and the charging device 40 of limiting the quantity of comprises the liquid-discharging plate 9 and the float 10 of float guide rod 2, first guide pipe 3, liquid outlet 4, guiding fluid baffle plate 5, pressure pocket 6, fluid stopping piece 7, second guide pipe 8, tape guide.
Second guide pipe 8 and pressure pocket 6 coaxial settings are fixed in the bottom of pressure pocket 6, closely cooperate with float guide rod 2, with spacing its stage casing.Fluid stopping piece 7 be fixed in float guide rod 2 the stage casing predetermined position and be limited within the pressure pocket 6.Float 10 and float guide rod 2 are coaxial and be fixed in the bottom of float guide rod 2 and be positioned at outside the pressure pocket 6.This float 10 is finally promoted by buoyancy along with the rising of the liquid level in the cryogenic liquid vessel 50, and like this, fluid stopping piece 7 also can float thereupon.Cryogenic liquide liquid level in the described cryogenic liquid vessel 50 equals or is higher than predeterminedly when being full of liquid level, and fluid stopping piece 7 stops up liquid outlets 2, makes that the vapor pressure in pressure pocket 6 and the topping up pipe 1 rises rapidly, fills when big pressure reduction is sensed in the source and can cut off supply.
Preferably, establish a guiding fluid baffle plate 5 that tilts in the pressure pocket 6, the upper end 52 of this guiding fluid baffle plate 5 is affixed with the top of pressure pocket 6, and the lower end is provided with outstanding support 51, referring to Fig. 5 A and 5B.Described support 51 evenly distributes on the edge of the lower end of guiding fluid baffle plate 5, and guiding fluid baffle plate 5 is affixed with the sidewall of pressure pocket 6 by equally distributed support 51.Whereby, the sidewall of the lower limb of guiding fluid baffle plate 5 and pressure pocket 6 has certain space G.In an embodiment provided by the invention, the cryogenic liquide of a certain amount of big pressure injects the buffering of pressure pocket 6 back elder generations through guiding fluid baffle plate 5, and then enter pressure pocket 6 by described space G, the cryogenic liquide of Zhu Ruing can not produce shock effect to pressure pocket like this, thereby has improved the working life of pressure pocket.
Because pressure pocket 6 needs to bear very big pressure in filling the liquid process, so each chamber wall of pressure pocket 6 has bigger thickness, the chamber wall thickness is by itself suffered pressure decision in filling the liquid process, and concrete thickness size can calculating by intensity.
Referring to Fig. 6 A and 6B, the also coaxial liquid-discharging plate 9 that is provided with a tape guide of the charging device 40 of limiting the quantity of, the liquid-discharging plate 9 of this tape guide comprises sidewall 91 and base plate 92, sidewall 91 is provided with some equally distributed leakage openings 94, with so that the liquid that second guide pipe 8 and float guide rod 2 gaps spill can flow in the cryogenic liquid vessel 50, thereby reduce hydraulic shock pressure, float 10 can impregnablely be moved up and down with float guide rod 2 together freely float 10 upper ends.Base plate 92 is provided with the 3rd guide pipe 93, is used for closely cooperating with float guide rod 2, with spacing its hypomere.The sidewall 91 of the liquid-discharging plate 9 of tape guide is fixed on pressure pocket 6 bottoms, forms a cavity between the liquid-discharging plate 9 of this tape guide and the pressure pocket 6.Described float guide rod 2 passes successively to be located in the 3rd guide pipe 93, second guide pipe 8, liquid outlet 4 and first guide pipe 3.Float guide rod 2, fluid stopping piece 7 and 10 3 parts of float fuse, and form a floating system, and floating system can freely move up and down by in the vertical direction in the filling process of cryogenic liquide.Liquid-discharging plate 9, second guide pipe 8, pressure pocket 6, liquid outlet 4 and the guiding fluid baffle plate 5 of topping up pipe 1, first guide pipe 3, tape guide fuse, and form a fixed system.The 3rd guide pipe and 2 of the described float guide rods of the liquid-discharging plate 9 of first guide pipe 3, second guide pipe 8 and tape guide all are preset with suitable gap, be provided with so on the one hand and can reduce leakage, can guarantee again that on the other hand floating system can carry out free vertical moving up and down.
In a specific embodiment provided by the invention, the liquid level of cryogenic media liquid constantly rises in the cryogenic liquid vessel 50, by float guide rod 2, the floating system that fluid stopping piece 7 and float 10 are formed also can constantly rise, when being filled into to a certain degree, fluid stopping piece 7 progresses into liquid outlet 4, when the liquid level of cryogenic media liquid in cryogenic liquid vessel 50 reaches or be higher than the default liquid level of institute, the sealing surface of fluid stopping piece 7 just contacts with the sealing surface of liquid outlet 4 fully, fluid stopping piece 7 is the contact of no gap with the contacting of sealing surface of 4 of liquid outlets, so just can guarantee not have again cryogenic media liquid to flow out by liquid outlet 4.Be more preferably, the sealing surface of fluid stopping piece 7 and liquid outlet 4 can be set as shapes such as cylinder or vertebra face according to different needs.
Preferably, charging device 40 each parts except that float 10 of limiting the quantity of all adopt stainless steel material to make, and the material of float 10 is a foamed polyurethane.Cryogenic liquide then comprises: liquid oxygen, liquid nitrogen, liquid argon and LNG Liquefied natural gas etc.Placement between each parts of the described charging device 40 of limiting the quantity of is for welding, be spirally connected or riveting, and for example fluid stopping piece 7 is welded in the middle part of float guide rod 2, and float 10 is welded in the bottom of float guide rod 2 etc.Float 10 is for being inverted floating drum, and actual its shape can be made as tubular, sphere or cube etc. as required.In assembly process, fluid stopping piece 7, float guide rod 2 and float 10 can have certain concentricity, and the liquid-discharging plate 9 of first guide pipe 3, second guide pipe 8 and tape guide also can have certain concentricity.
Be more preferably, this charging device 40 of limiting the quantity of can be according to client's different filling rate requirement, under the situation of safety, make to measure, and this charging device of limiting the quantity of can guarantee that the fullness rate of the liquid that charges into is no more than the maximum filling rate that design code requires, thereby overcharging of avoiding that routine may cause in filling and cause container to build the pressure, fried jar danger.Because the filling pressure in the filling process is very big, so the speed that fills is very fast, for less than the low-temperature (low temperature) vessel about 2000L, the time of filling is generally 3～20 minutes.In addition, the volume of limit filling device is little, and reliable in structure can repeated multiple times be used, and can the volume of container do not impacted.
The present invention provides a kind of cryogenic liquid vessel with the charging device 40 of limiting the quantity of accordingly, it comprises topping up pipe 1, and in establish the charging device 40 of limiting the quantity of, topping up pipe 1 one ends of cryogenic liquid vessel 50 are connected with pressure pocket 6 by the liquid entering hole of pressure pocket 6, the external source that fills of an end.
Be example with the cryogenic liquide liquid nitrogen below, specify the process that the present invention fills cryogenic liquide:
Fig. 7 A and Fig. 7 B show the beginning that fills with cryogenic liquid vessel 50 provided by the invention respectively and the state when finishing.According to Fig. 7 A, by the accurate Calculation setting position of charging device 40 of limiting the quantity of in cryogenic liquid vessel 50 inside.One end of topping up pipe 1 runs through on the pressure pocket 6 of being located at the charging device 40 of limiting the quantity of, and the outer connection one of the other end of topping up pipe 1 fills the source.
Fill beginning, the overcooled liquid of certain pressure constantly injects by topping up pipe 1, the liquid that injects enters in the pressure pocket 6 by the buffering of guiding fluid baffle plate 5, the buffering of guiding fluid baffle plate 5 can allow the liquid that can not that injects that float guide rod 2 is produced shock effect, thereby can not influence the motion of floating system.The overcooled liquid that is injected in the pressure pocket 6 enters in the cryogenic liquid vessel 50 by the liquid outlet opening on liquid outlet 4, first guide pipe 3 more successively, and the liquid that is spilt by second guide pipe 8 and float guide rod 2 gaps then flow in the cryogenic liquid vessel 50 by the leakage opening 94 on the liquid-discharging plate 9 of tape guide.The overcooled liquid that sprays in the cryogenic liquid vessel 50 cools off once more to the Low Temperature Steam on cryogenic liquid vessel 50 tops, Low Temperature Steam becomes cryogenic liquide and falls into cryogenic liquid vessel 50 lower curtates, thereby reduce the vapor pressure in the cryogenic liquid vessel 50, and then can guarantee to fill pressure reduction in source and the container, continue to fill and need not open outlet valve discharge section Low Temperature Steam thereby can keep.Whereby, filling process has promptly been saved resource and has been protected environment again.
In the process of constantly injecting liquid, liquid level in the cryogenic liquid vessel 50 constantly rises, float 10 constantly upwards floats, come-up along with float 10, fluid stopping piece 7 is also along with the float guide rod 2 that is connected on the float 10 moves straight up, when float 10 rises to the liquid level that sets, shown in Fig. 7 B, fluid stopping piece 7 enters in the liquid outlet 4 and blocks the mouth of pipe of liquid outlet 4, this moment, pressure pocket 6 interior liquid can't spray in the container by liquid outlet 4, thereby can't cool off the Low Temperature Steam on cryogenic liquid vessel 50 tops, vapor pressure can not reduce in the cryogenic liquid vessel 50, make that vapor pressure pressure pocket 6 and topping up pipe 1 in rapidly rise because the cryogenic liquide gasification is very fast this moment, thereby produce the nearly pressure reduction of 2～5kg.The described place, source that fills is provided with pneumatic pump, when fluid stopping piece 7 stops up liquid outlet 4, pressure in the cryogenic liquid vessel 50 rises, described pneumatic pump by topping up pipe 1 sense close automatically after the predetermined pressure difference described fill the source fill valve with automatic cut-out supply, thereby realize spacing harmless filling.
The present invention provides a method of utilizing above-mentioned cryogenic liquid vessel to fill as follows accordingly:
The first, provide a pressure pocket, a liquid entering hole and is positioned at the liquid outlet at top, sprays from the top so that be filled into the cryogenic liquide of this pressure pocket;
The second, provide a ball cock device, it comprises that a float and is positioned at the float guide rod at this float top, and this float guide rod runs through whole pressure pocket, and passes from this liquid outlet; And a fluid stopping piece, be limited in this pressure pocket, and fix with this float guide rod, when the cryogenic liquide that constantly pours reached predetermined height, the float of come-up promoted this this liquid outlet of fluid stopping piece shutoff.
In sum, the present invention is by establishing the charging device of limiting the quantity of in cryogenic liquid vessel, this charging device of limiting the quantity of comprises a pressure pocket, pressure pocket is provided with liquid entering hole and liquid outlet, cryogenic liquide can fill into pressure pocket by liquid entering hole, enter into cryogenic liquid vessel by liquid outlet, the described charging device of limiting the quantity of also comprises a ball cock device, this ball cock device comprises the float guide rod and is fixed in the float of float guide rod bottom, the float guide rod runs through whole pressure pocket, and pass from liquid outlet, described ball cock device can fluctuate, and the float guide rod also is connected with a fluid stopping piece, and this fluid stopping piece is limited in the pressure pocket, when cryogenic liquid vessel constantly charges into cryogenic liquid vessel, described fluid stopping piece is along with together motion straight up of ball cock device, and when the cryogenic liquide liquid level in the cryogenic liquid vessel equals or is higher than predeterminedly when being full of liquid level, the fluid stopping piece stops up liquid outlet, make the vapor pressure in pressure pocket and the topping up pipe rise rapidly, fill when big pressure reduction is sensed in the source and can cut off supply.Whereby, to filling of cryogenic media, can realize not having long-range the filling of discharging, i.e. energy-conserving and environment-protective have increased the safety reliability that fills again, and the speed that fills is very fast, more hommization.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (23)
1. the charging device of limiting the quantity of of a cryogenic liquid vessel is characterized in that, the described charging device of limiting the quantity of is arranged in the cryogenic liquid vessel, and it comprises
One pressure pocket has the liquid outlet that a liquid entering hole and is positioned at the top;
One ball cock device comprises that a float and is positioned at the float guide rod at this float top, and this float guide rod runs through whole pressure pocket, and passes from this liquid outlet; And
One fluid stopping piece is limited in this pressure pocket, and fixes with this float guide rod, is used for this liquid outlet of shutoff.
2. the charging device of limiting the quantity of according to claim 1 is characterized in that, the described charging device of limiting the quantity of comprises that one is used for the first spacing guide pipe, is fixed on the top of described pressure pocket, closely cooperates with described float guide rod.
3. the charging device of limiting the quantity of according to claim 2 is characterized in that, described first guide pipe has some liquid outlet openings.
4. the charging device of limiting the quantity of according to claim 3 is characterized in that, the described charging device of limiting the quantity of comprises that one is used for the second spacing guide pipe, is arranged on the bottom of this pressure pocket, closely cooperates with this float guide rod.
5. according to the described charging device of limiting the quantity of of above-mentioned each claim, it is characterized in that the described charging device of limiting the quantity of also is provided with a guiding fluid baffle plate, is obliquely installed in this pressure pocket, is used to guide the liquid that is filled into this pressure pocket from this liquid entering hole.
6. the charging device of limiting the quantity of according to claim 5 is characterized in that, described guiding fluid baffle plate upper end is affixed with described pressure pocket inside ceiling panel, and described guiding fluid baffle plate lower end utilizes the side wall surface of outstanding a plurality of supports and described pressure pocket affixed.
7. the charging device of limiting the quantity of according to claim 6 is characterized in that, described a plurality of outstanding supports are uniform on the outer rim of described guiding fluid baffle plate lower end.
8. the charging device of limiting the quantity of according to claim 7 is characterized in that, the described charging device of limiting the quantity of also is provided with the liquid-discharging plate of a tape guide, comprises
One base plate is provided with and is used for the 3rd spacing guide pipe, and itself and this float guide rod closely cooperates;
One sidewall is fixed on this pressure pocket; With
Some leakage openings.
9. the charging device of limiting the quantity of according to claim 8 is characterized in that, described some leakage openings are uniform on described sidewall.
10. the charging device of limiting the quantity of according to claim 1 is characterized in that, the sealing surface that described fluid stopping piece and described liquid outlet are complementary is the conical surface or cylinder.
11. the charging device of limiting the quantity of according to claim 1 is characterized in that, described liquid entering hole is arranged on the top or the sidepiece of described pressure pocket.
12. a cryogenic liquid vessel comprises the topping up pipe, it is characterized in that, is provided with the charging device of limiting the quantity of in the described cryogenic liquid vessel, the described charging device of limiting the quantity of comprises
One pressure pocket has the liquid outlet that a liquid entering hole and that is communicated with this topping up pipe is positioned at the top;
One ball cock device comprises that a float and is positioned at the float guide rod at this float top, and this float guide rod runs through whole pressure pocket, and passes from this liquid outlet; And
One fluid stopping piece is limited in this pressure pocket, and fixes with this float guide rod, is used for this liquid outlet of shutoff.
13. cryogenic liquid vessel according to claim 12 is characterized in that, the described charging device of limiting the quantity of comprises that one is used for the first spacing guide pipe, is fixed on the top of described pressure pocket, closely cooperates with described float guide rod.
14. cryogenic liquid vessel according to claim 13 is characterized in that, described first guide pipe has some liquid outlet openings.
15. cryogenic liquid vessel according to claim 14 is characterized in that, the described charging device of limiting the quantity of comprises that one is used for the second spacing guide pipe, is arranged on the bottom of this pressure pocket, closely cooperates with this float guide rod.
16., it is characterized in that the described charging device of limiting the quantity of also is provided with a guiding fluid baffle plate, is obliquely installed in this pressure pocket, is used to guide the liquid that is filled into this pressure pocket from this liquid entering hole according to the described cryogenic liquid vessel of above-mentioned each claim.
17. cryogenic liquid vessel according to claim 16 is characterized in that, described guiding fluid baffle plate upper end is affixed with described pressure pocket inside ceiling panel, and described guiding fluid baffle plate lower end utilizes the side wall surface of outstanding a plurality of supports and described pressure pocket affixed.
18. cryogenic liquid vessel according to claim 17 is characterized in that, described a plurality of outstanding supports are uniform on the outer rim of described guiding fluid baffle plate lower end.
19. cryogenic liquid vessel according to claim 18 is characterized in that, the described charging device of limiting the quantity of also is provided with the liquid-discharging plate of a tape guide, comprises
One base plate is provided with and is used for the 3rd spacing guide pipe, and itself and this float guide rod closely cooperates;
One sidewall is fixed on this pressure pocket; With
Some leakage openings.
20. cryogenic liquid vessel according to claim 19 is characterized in that, described some leakage openings are uniform on described sidewall.
21. cryogenic liquid vessel according to claim 12 is characterized in that, the sealing surface that described fluid stopping piece and described liquid outlet are complementary is the conical surface or cylinder.
22. cryogenic liquid vessel according to claim 12 is characterized in that, described liquid entering hole is arranged on the top or the sidepiece of described pressure pocket.
23. the methods for filling of limiting the quantity of that is used for as the cryogenic liquid vessel of claim 12 is characterized in that,
One pressure pocket is provided, and it comprises that a liquid entering hole and is positioned at the liquid outlet at top, sprays from the top so that be filled into the cryogenic liquide of this pressure pocket;
One ball cock device is provided, and it comprises that a float and is positioned at the float guide rod at this float top, and this float guide rod runs through whole pressure pocket, and passes from this liquid outlet; And
One fluid stopping piece is limited in this pressure pocket, and fixes with this float guide rod, and when the cryogenic liquide that constantly pours reached predetermined height, the float of come-up promoted this this liquid outlet of fluid stopping piece shutoff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910079927 CN101832466B (en) | 2009-03-13 | 2009-03-13 | Limited charging device, low-temperature liquid container and limited charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910079927 CN101832466B (en) | 2009-03-13 | 2009-03-13 | Limited charging device, low-temperature liquid container and limited charging method |
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| Publication Number | Publication Date |
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| CN101832466A CN101832466A (en) | 2010-09-15 |
| CN101832466B true CN101832466B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910079927 Active CN101832466B (en) | 2009-03-13 | 2009-03-13 | Limited charging device, low-temperature liquid container and limited charging method |
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| CN115183146B (en) * | 2022-07-27 | 2023-10-24 | 东北林业大学 | Natural gas adsorption tank body heat exchange system |
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|---|---|---|---|---|
| US5787942A (en) * | 1996-06-14 | 1998-08-04 | Mve, Inc. | Float-type shut off device for a cryogenic storage tank |
| CN1566742A (en) * | 2003-06-30 | 2005-01-19 | 李平安 | Over-inflation protecting apparatus |
| CN200968494Y (en) * | 2006-11-23 | 2007-10-31 | 查特深冷工程系统(常州)有限公司 | Deep cooling liquid container floating type control device for liquor charging amount |
| CN201386903Y (en) * | 2009-03-13 | 2010-01-20 | 中国国际海运集装箱(集团)股份有限公司 | Limit filling device and low-temperature fluid container |
-
2009
- 2009-03-13 CN CN 200910079927 patent/CN101832466B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5787942A (en) * | 1996-06-14 | 1998-08-04 | Mve, Inc. | Float-type shut off device for a cryogenic storage tank |
| CN1566742A (en) * | 2003-06-30 | 2005-01-19 | 李平安 | Over-inflation protecting apparatus |
| CN200968494Y (en) * | 2006-11-23 | 2007-10-31 | 查特深冷工程系统(常州)有限公司 | Deep cooling liquid container floating type control device for liquor charging amount |
| CN201386903Y (en) * | 2009-03-13 | 2010-01-20 | 中国国际海运集装箱(集团)股份有限公司 | Limit filling device and low-temperature fluid container |
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| CN101832466A (en) | 2010-09-15 |
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Address after: No. 159, Chenggang Road, Nantong City, Jiangsu Province, 226000 Patentee after: Zhongji an Ruihuan Technology Co.,Ltd. Address before: No. 159, Chenggang Road, Nantong City, Jiangsu Province, 226000 Patentee before: NANTONG CIMC TANK EQUIPMENT Co.,Ltd. |