CN104309820A - Drinking water long-term storage water tank for space station - Google Patents
Drinking water long-term storage water tank for space station Download PDFInfo
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- CN104309820A CN104309820A CN201410559467.XA CN201410559467A CN104309820A CN 104309820 A CN104309820 A CN 104309820A CN 201410559467 A CN201410559467 A CN 201410559467A CN 104309820 A CN104309820 A CN 104309820A
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- end cap
- water tank
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- outer end
- housing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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Abstract
The invention discloses a drinking water long-term storage water tank for a space station. The drinking water long-term storage water tank comprises a butterfly nut (1), a locking screw (2), a pin (3), an air port connector (4), bolts (5), a handle (6), an inner end cover (7), an inner end cover and outer end cover sealing O-shaped ring (8), an outer end cover (9), an outer end cover and shell sealing O-shaped ring (10), a shell (11), an inner bag (12), an air port connector sealing O-shaped ring (13), a steel wire barrel (14), a first liquid path disconnector (15), a second liquid path disconnector (19) and a liquid path disconnector sealing O-shaped ring (16). The shell and the outer end cover are made of metal. The inner bag (12) is made of nine-layer composite film. The water tank has the advantages that the water tank is simple in structure, capable of bearing high operation pressure, capable of being demounted, good in compatibility with water, high in air stopping performance, high in airtightness, reusable and long in service life, and has two internal medium extrusion manners.
Description
Technical field
The present invention relates to a kind of space station potable water long storage periods water tank.
Background technology
The general water tank in space station is that space station environmental Kuznets Curves and life keep subsystem (ECLSS) general water container, and in water tank, the medium of storage or contact comprises the astronaut's potable water, condensed water, the ultra-pure water etc. after the purification of urine processing equipment that add silver ion.Therefore, except meeting the leak rate index of general water tank container, discharge efficiency index, outside the specific function of the general water tank in space station is required, also need to meet the compatibility test requirement with above-mentioned medium, other requirements such as high reliability request and in-orbit use.
The water tank that international space station uses is mainly based on CWC water tank, this water tank adopts fiber cloth as external capsule protecting sleeve, the suture homogeneity of external capsule protecting sleeve is difficult to ensure and external capsule finish size can be stretched due to fiber cloth material, external capsule finish size bigger error; Fiber cloth external capsule is as main pressure-containing member in addition, and the warp-wise of fiber cloth is different with broadwise strained condition, causes water tank to be difficult to bear higher pressure.When extreme case appears in inside, space station, such as, when being in vacuum state, water tank needs the minimum pressure bearing 100kPa, adds in water tank own with pressure, and water tank inside and outside differential pressure is too large, and water tank is difficult to safely ensure.CWC water tank inlet and water outlet are same in addition, when water tank in filling process once there is gas in inside, gas will be difficult to discharge, harm water tank safety.CWC water tank capsula interna and external capsule part do not have anchor fitting, and capsula interna inconsistent phenomenon easily occurs in the injecting process and causes water tank with water interface to misplace.
Existing space station water tank is difficult to bear higher operating pressure, is difficult to ensure reliability under space station extreme case (vacuum).Space station water tank many employings metal parts directly contacts with water, metal parts can with potable water generation chemical reaction, cause water quality to change, be difficult to ensure compatible for a long time.The draining mode of CWC water tank is more single in addition, and the mode that pump can only be adopted to take out discharges liquid.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of space station potable water long storage periods water tank, this cisten mechanism is simple, higher operating pressure can be born, there is detachable function, good with the compatibility of water, there is extremely strong gas barrier properties, air-tightness is high, repeatedly can use, long service life, there are two kinds of interior media extrusion ways.
The present invention includes following technical scheme:
A kind of space station potable water long storage periods water tank, comprises fly nut, tightly locks screw rod, pin, gas port joint, bolt, handle, inner end cap, inner end cap and outer end cap and seal O type circle, outer end cap, outer end cap and housing seal O type circle, housing, capsula interna, gas port joint sealing O type circle, steel-wire screw-socket, the first fluid path disconnect, the second fluid path disconnect and fluid path disconnect and seal O type circle; Housing is taper, and the material of housing and outer end cap is metal; The material of inner end cap is non-metal; Described capsula interna adopts nine layers of composite film material to make;
Capsula interna is the software that upper surface has opening, and capsula interna is positioned at housing, and the upper surface of capsula interna and the lower surface of inner end cap are by heat seal process heat seal weld together; Inner end cap and outer end cap seal the upper surface that O type circle embeds inner end cap, steel-wire screw-socket embeds in inner end cap, inner end cap and outer end cap seal O type circle and are positioned at outside steel-wire screw-socket, coordinated by bolt, thus inner end cap and outer end cap are fixed together through after outer end cap with the steel-wire screw-socket in inner end cap; Outer end cap and housing seal O type circle embed in housing, and outer end cap and housing adopt fly nut, tightly lock screw rod and pin is fixed together, and realize tank seal by outer end cap and housing seal O type circle; Gas port joint is fixed on outer end cap, and adopts gas port joint sealing O type circle to realize sealing; First fluid path disconnect, the second fluid path disconnect are fixed in inner end cap through after outer end cap, and the second fluid path disconnect is positioned at the described overthe openings of capsula interna as filling pipe end, and the first fluid path disconnect is positioned at the described overthe openings of capsula interna as water outlet; Seal O type circle by fluid path disconnect between two fluid path disconnect and inner end cap to realize sealing; Handle is arranged on outer end cap; Capsula interna outside face, inner end cap side and shell inner surface adjacent part have the first gap, the outermost upper surface of inner end cap with there is between outer end cap lower surface the second gap be communicated with the first gap; Gas port joint can realize above-mentioned first gap and water tank external communication.
Inner end cap adopts polythene material to make.
The weld seam of heat seal welding is not less than 5mm at the width of inner end cap radial direction, adopts twice heat seal weld seam.
Described capsula interna and heat seal place of inner end cap are annular arrangement, and the external diameter of heat seal place is less than the maximum outside diameter of inner end cap lower surface.
Described capsula interna length is less than the height of housing.
Inner end cap forms groove towards the surface of capsula interna.
The height of handle is higher than the top of fluid path disconnect.
The tapering of described housing is 1:10.4.
The outside of water tank outer end cap and housing is provided with the mounting hole for assembling with other tank parts.
The present invention compared with prior art tool has the following advantages:
(1) space of the present invention water tank breaches the restriction that potable water is difficult to long storage periods, adopt nine layers of complex film physically based deformation isolation method by isolated for the material that can react with water, the compatibility of itself and water is good, has extremely strong gas barrier properties, and air-tightness is high another.In addition, space duricrust water tank adopts nine layers of structure of composite membrane to take splendid attire astronaut potable water, not only can ensure that the inner water quality of water tank remains unchanged for a long period of time, and capsula interna material hardness is little, is compressible to and is convenient to together reduce storage space after vacuumizing.
(2) water tank of the present invention comprises fly nut, tightly locks screw rod, pin, gas port joint, bolt, handle, inner end cap, inner end cap and outer end cap and seal O type circle, outer end cap, outer end cap and housing seal O type circle, housing, capsula interna, gas port joint sealing O type circle, steel-wire screw-socket, the first fluid path disconnect, the second fluid path disconnect and fluid path disconnect and seal O type circle; Housing is taper, and the material of housing and outer end cap is metal; The material of inner end cap is non-metal; Thus making water tank can bear higher operating pressure on the whole, structure is simple, and can be accessed by water tank in life support system pipeline easily, this water tank has detachable function, and the split realizing tank parts stores, and tank parts ergonomic designs can realize rapid-assembling.This water tank uses nine layers of complex film and medium Long term compatibility feature and nine layers of complex film non-deformability strong in addition, and water tank can repeatedly use, long service life.
(3) water tank is made to have medium extrusion way by gas port joint, the first fluid path disconnect, the second fluid path disconnect, outer end cap, inner end cap, coordinating between housing with nine layers of complex film capsula interna; A kind of mode adopts pump to carry; Another mode can adopt inflation method to utilize air pressure to be extruded by the liquid in capsula interna.
Accompanying drawing explanation
Fig. 1 is space of the present invention potable water box structure schematic diagram;
Fig. 2 is gap and gas port joint UNICOM schematic diagram between the outer and housing of capsula interna
Fig. 3 is capsula interna and inner end cap heat seal place structural representation;
Fig. 4 is that 1 water tank and multiple housing stack schematic diagram;
Fig. 5 is 4 water tanks except outside part stacks schematic diagram;
Fig. 6 is the partial enlarged drawing of Fig. 5.
Detailed description of the invention
Just by reference to the accompanying drawings the present invention is described further below.
As shown in Figure 1, a kind of space station of the present invention potable water long storage periods water tank, comprises fly nut 1, tight lock screw rod 2, pin 3, gas port joint 4, bolt 5, handle 6, inner end cap 7, inner end cap and outer end cap seals O type circle 8, outer end cap 9, outer end cap and housing seal O type circle 10, housing 11, capsula interna 12, gas port joint sealing O type circle 13, steel-wire screw-socket 14, first fluid path disconnect 15, second fluid path disconnect 19 and fluid path disconnect and seal O type circle 16; Housing 11 is taper, and its material is metal; The material of inner end cap 7 is non-metal;
Capsula interna 12 has the non-metal software of opening for upper surface, and capsula interna 12 is positioned at housing 11, and the lower surface of capsula interna 12, by heat seal process and inner end cap 7 heat seal weld together, ensures that water tank inside does not exist leakage; Inner end cap and outer end cap seal the upper surface that O type circle 8 embeds inner end cap 7, steel-wire screw-socket 14 embeds in inner end cap 7, inner end cap and outer end cap seal O type circle 8 and are positioned at outside steel-wire screw-socket 14, bolt 5 is coordinated with the steel-wire screw-socket 14 in inner end cap 7 through after outer end cap 9, thus inner end cap 7 and outer end cap 9 are fixed together; Outer end cap and housing seal O type circle 10 embed in housing 11, and outer end cap 9 and housing 11 adopt fly nut 1, tightly lock screw rod 2 and pin 3 is fixed together, and realize tank seal by outer end cap and housing seal O type circle 10; Astronaut's hand operation in space station is convenient in the setting of fly nut 1, changes the miscellaneous part of water tank except housing 11.Gas port joint 4 is fixed by screws on outer end cap 9, and adopts gas port joint sealing O type circle 13 to realize sealing; First fluid path disconnect 15, second fluid path disconnect 19 is through outer end cap 9, and be fixed by screws in inner end cap 7, second fluid path disconnect 19 is as the described overthe openings of filling pipe end towards capsula interna 12, and the first fluid path disconnect 15 is positioned at the described overthe openings of capsula interna 12 as water outlet; Water tank can be realized be connected with the quick of pipeline; Seal O type circle 16 by fluid path disconnect between two fluid path disconnect and inner end cap to realize sealing; Handle 6 is arranged on outer end cap 9 by screw, facilitates astronaut to carry out carrying work to water tank in space station; Capsula interna 12 outside face, inner end cap 7 side and housing 11 inside face adjacent part have the first gap, have the second gap be communicated with the first gap between the outermost upper surface of inner end cap 7 with outer end cap 9 lower surface; Gas port joint 4 can realize above-mentioned first gap and water tank external communication, ensure filling and adopt pump mode extrusion in environmental communication, avoid causing water tank to destroy.
Inner end cap 7 and outer end cap 9 such as can adopt 6 bolts 5 to connect.
Capsula interna 12 can adopt nine layers of composite film material to make, air-tightness, good with the compatibility of water, can meet the needs of long storage periods water, but its insufficient strength, and internal operating pressures is unsuitable excessive, therefore arranges metal case as main pressure-containing member.Inner end cap 7 adopts polythene material to make, and can ensure the reliability that heat seal is welded, and heat seal weld seam is not less than 5mm at the width of inner end cap radial direction, adopts twice heat seal weld seam.Heat seal place needs heat seal even, there are not fold, bubble, superfluity etc.Capsula interna 12 is annular arrangement with heat seal place 24 of inner end cap 7, and heat seal place external diameter is less than the maximum outside diameter of inner end cap 7, and ensure that water tank inside is filled in water capsula interna 12 expansion phase, suffered by heat seal weld seam, application force is pressure, there is not shearing stress; Inner end cap 7 outer margin deformation can not be caused when can ensure heat seal in addition; Such as internal radius is 240mm, and external diameter is 280mm.
The height that capsula interna 12 length is less than housing 11 avoids capsula interna 12 to produce fold in the injecting process, produces destroy capsula interna 12.Such as can 10mm less of body height.
When not filling water in water tank, negative pressure is taken out in water tank inside, taking out negative pressure is operated by fluid path disconnect 15, and negative pressure can make capsula interna 12 deform, and slowly shrinks and fits in inner end cap 7, and capsula interna can be fitted smoothly.Inner end cap 7 intensity is high, is to deform vacuumizing.Inner end cap forms groove 17 on the circular surface of capsula interna; Make water tank capsula interna slowly collapse into end cap groove when vacuum pumping, save the parking space of multiple water tank end cap.
Water tank is when water-filling, pipeline is connected fluid path disconnect 19, slowly toward water tank intracontour waterflooding, water tank capsula interna 12 increases expansion gradually along with moisture storage capacity and is fitted on housing 11, now housing is as pressure-containing member, capsula interna does not bear pressure load, and therefore the intensity of water tank determines primarily of housing.Water tank inside adopts pressure differential method water filling, and when water tank internal pressure is equal with water injection pressure, water tank is in full state.
Water tank has two kinds of methods when discharge opeing.One adopts pump to draw water from fluid path disconnect 15, needs to open gas interface 4, prevent the too high destruction capsula interna of water tank capsula interna 13 both sides pressure reduction in pump process.A kind of method is that water tank internal water is extruded by the method for inflating pressure, gas port joint 4 is connected source of the gas or Floor Pump, slowly pressurizes, and when water tank internal air gap pressure height water capsula interna 13 inside water pressure, namely water can be extruded discharge from fluid path disconnect 15.
The height of handle 6 is higher than the top of fluid path disconnect 15, and when ensureing that all parts of water tank except housing 11 are stacked together, fluid path disconnect 12 can not contact.
The tapering of housing 11 is 1:10.4, can realize multiple housing 11 and be connected with water tank, and when multiple tank shell 11 is stacked together, retain certain gap between each housing 11, for convenience detach.Water tank outer end cap 9, housing 11 are provided with mounting hole 18, multiple housing 11 can be connected with a complete water tank, as shown in Figure 4.
As shown in Figure 5, the parts of water tank except housing 11 can be adopted by the mounting hole 18 on outer end cap 9 overbolt 20 to carry out connection and be stacked together, generally can adopt the pattern that 4 assemblies stack, the side being welded with capsula interna of the inner end cap 7 of every two assemblies contacts, again two parts are close together by the mode that handle 6 is relative, ensure that inner end cap 7 is in whole component internal, handle 6 is outer, because metal parts such as wall handle 6 grade damages inner end cap 7 and capsula interna 12.This kind stacks the parking space that mode can reduce water tank effectively.Partial enlarged drawing as shown in Figure 6.
In water tank, astronaut's potable water of silver ion is added in storage, and this duricrust water tank can ensure that astronaut's potable water does not go bad after storing 1.5 years.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (9)
1. a space station potable water long storage periods water tank, it is characterized in that, comprise fly nut (1), tight lock screw rod (2), pin (3), gas port joint (4), bolt (5), handle (6), inner end cap (7), inner end cap and outer end cap seal O type circle (8), outer end cap (9), outer end cap and housing seal O type circle (10), housing (11), capsula interna (12), gas port joint sealing O type circle (13), steel-wire screw-socket (14), first fluid path disconnect (15), second fluid path disconnect (19) and fluid path disconnect sealing O type circle (16), housing (11) is taper, and the material of housing and outer end cap is metal, the material of inner end cap (7) is non-metal, described capsula interna (12) adopts nine layers of composite film material to make,
Capsula interna (12) has the software of opening for upper surface, capsula interna (12) is positioned at housing (11), and the upper surface of capsula interna (12) and the lower surface of inner end cap (7) are by heat seal process heat seal weld together; Inner end cap and outer end cap seal the upper surface that O type circle (8) embeds inner end cap (7), steel-wire screw-socket (14) embeds in inner end cap (7), inner end cap and outer end cap seal O type circle (8) and are positioned at steel-wire screw-socket (14) outside, bolt (5) is coordinated with the steel-wire screw-socket (14) in inner end cap (7) afterwards through outer end cap (9), thus inner end cap (7) and outer end cap (9) are fixed together; Outer end cap and housing seal O type circle (10) embed in housing (11), outer end cap (9) and housing (11) adopt fly nut (1), tightly lock screw rod (2) and pin (3) is fixed together, and realize tank seal by outer end cap and housing seal O type circle (10); Gas port joint (4) is fixed on outer end cap (9), and adopts gas port joint sealing O type circle (13) to realize sealing; First fluid path disconnect (15), the second fluid path disconnect (19) are through being fixed in inner end cap (7) after outer end cap (9), second fluid path disconnect (19) is positioned at the described overthe openings of capsula interna (12) as filling pipe end, the first fluid path disconnect (15) is positioned at the described overthe openings of capsula interna (12) as water outlet; Seal O type circle (16) by fluid path disconnect between two fluid path disconnect and inner end cap to realize sealing; Handle (6) is arranged on outer end cap (9); Capsula interna (12) outside face, inner end cap (7) side and housing (11) inside face adjacent part have the first gap, have the second gap be communicated with the first gap between inner end cap (7) outermost upper surface with outer end cap (9) lower surface; Gas port joint (4) can realize above-mentioned first gap and water tank external communication.
2. space station as claimed in claim 1 potable water long storage periods water tank, is characterized in that: inner end cap (7) adopts polythene material to make.
3. space station as claimed in claim 1 potable water long storage periods water tank, is characterized in that, the weld seam of heat seal welding is not less than 5mm at the width of inner end cap radial direction, adopts twice heat seal weld seam.
4. space station as claimed in claim 1 potable water long storage periods water tank, is characterized in that: described capsula interna (12) is annular arrangement with heat seal place of inner end cap (7), and the external diameter of heat seal place is less than the maximum outside diameter of inner end cap lower surface.
5. space station as claimed in claim 1 potable water long storage periods water tank, is characterized in that: described capsula interna (12) length is less than the height of housing (11).
6. space station as claimed in claim 1 potable water long storage periods water tank, is characterized in that: inner end cap forms groove (17) towards the surface of capsula interna.
7. space station as claimed in claim 1 potable water long storage periods water tank, is characterized in that: the height of handle (6) is higher than the top of fluid path disconnect (15).
8. space station as claimed in claim 1 potable water long storage periods water tank, is characterized in that: the tapering of described housing (11) is 1:10.4.
9. space station as claimed in claim 1 potable water long storage periods water tank, is characterized in that: the outside of water tank outer end cap (9) and housing (11) is provided with the mounting hole (18) for assembling with other tank parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559467.XA CN104309820B (en) | 2014-10-20 | 2014-10-20 | A kind of space station drinking water Long-term Storage Water case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559467.XA CN104309820B (en) | 2014-10-20 | 2014-10-20 | A kind of space station drinking water Long-term Storage Water case |
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| CN104309820A true CN104309820A (en) | 2015-01-28 |
| CN104309820B CN104309820B (en) | 2016-05-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104743290A (en) * | 2015-04-14 | 2015-07-01 | 山东格瑞德集团有限公司 | Splicing, assembling and bag lining type galvanizing water tank |
| CN105253447A (en) * | 2015-10-21 | 2016-01-20 | 郑运婷 | Use method for safe water storage barrel |
| CN105292730A (en) * | 2015-10-21 | 2016-02-03 | 郑运婷 | Safe water storage bucket |
| CN105314289A (en) * | 2015-08-07 | 2016-02-10 | 北京控制工程研究所 | Space station drinking water soft storage tank |
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| FR2586408A1 (en) * | 1985-08-26 | 1987-02-27 | Coca Cola Co | SYSTEM FOR PREPARING AND DISPENSING A BEVERAGE FORMED FROM A MIXTURE IN THE CONDITIONS OF NONE GRAVITY REGULATING IN OUTER SPACE. |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104743290A (en) * | 2015-04-14 | 2015-07-01 | 山东格瑞德集团有限公司 | Splicing, assembling and bag lining type galvanizing water tank |
| CN105314289A (en) * | 2015-08-07 | 2016-02-10 | 北京控制工程研究所 | Space station drinking water soft storage tank |
| CN105314289B (en) * | 2015-08-07 | 2018-01-05 | 北京控制工程研究所 | A kind of soft tank of space station drinking water |
| CN105253447A (en) * | 2015-10-21 | 2016-01-20 | 郑运婷 | Use method for safe water storage barrel |
| CN105292730A (en) * | 2015-10-21 | 2016-02-03 | 郑运婷 | Safe water storage bucket |
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| CN105253447B (en) * | 2015-10-21 | 2017-05-03 | 王双枝 | Use method for safe water storage barrel |
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| CN104309820B (en) | 2016-05-04 |
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