CN101592144B - Extracting device and method thereof - Google Patents
Extracting device and method thereof Download PDFInfo
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- CN101592144B CN101592144B CN2008101098641A CN200810109864A CN101592144B CN 101592144 B CN101592144 B CN 101592144B CN 2008101098641 A CN2008101098641 A CN 2008101098641A CN 200810109864 A CN200810109864 A CN 200810109864A CN 101592144 B CN101592144 B CN 101592144B
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Abstract
The invention relates to an extracting device which comprises a cylinder body, a piston, a pull rod, a buffer matter supply unit and a buffer unit, wherein the cylinder body comprises a hollow cavity which is provided with a first opening at the tail end of the cylinder body and a second opening that is positioned at the front end of the cylinder body and is communicated with the hollow cavity; the piston is positioned into the hollow cavity, the edge of the piston contacts with the wall of the hollow cavity and divides the hollow cavity into a first region and a second region, the first region is positioned between the piston and the front end of the cylinder body, the second region is positioned between the piston and the first opening; the pull rod is connected to the piston and moves the piston; the buffer matter supply unit provides a buffer matter to the second region so as to inhibit impurities from entering the first region; the buffer unit enables the second region to form a closed space and to collect the buffer matter; when the piston moves towards the tail end of the cylinder body, a material is extracted to the first region through the second opening, and the buffer matter is discharged into the buffer unit.
Description
Technical field
The present invention relates to a kind of draw-out device and method, specifically, is a kind of draw-out device and method of isolated impurity.
Background technique
Fig. 1 is the schematic representation of known draw-out device, and is as shown in the figure, and known draw-out device 100 comprises a cylindrical shell 110; It comprises the front end 112 that a hollow chamber 150, one openings 140 are positioned at cylindrical shell 110 and is communicated with hollow chamber 150, and a piston 120 is arranged in hollow chamber 150; And one pull bar 130 be connected to piston 120; Piston 120 is moved in hollow chamber 150, when piston 120 when the end 114 of cylindrical shell 110 moves, material to be extracted is extracted in the hollow chamber 150 via opening 140; When piston 120 when the front end 112 of cylindrical shell 110 moves, the material that extracted in the hollow chamber 150 is discharged via opening 140.Yet; Because hollow chamber 150 is an open space at the end 114 of cylindrical shell 110; Therefore the wall of hollow chamber 150 can adhere to impurity, for example air, and the hollow chamber 150 before impurity can be arranged in piston 120 through 122 entering of the space between piston 120 and the hollow chamber 150 when piston 120 moves backward; Therefore when extracting material; Attached to the impurity of hollow chamber's 150 walls and the impurity that gets into via space 122, make the Substance Properties deterioration that is extracted to hollow chamber 150, cause the deterioration of effect.For example, with draw-out device 100 extract ultra polarization helium 3 (
3He) time, because the paramagnetism of oxygen can cause ultra polarization
3The depolarizing of He is therefore attached to the oxygen of hollow chamber's 150 walls and the oxygen that gets into via space 122, feasible ultra polarization
3The slow time T of He
1Significantly reduce, cause the ultra polarization of using draw-out device 100 to extract
3When He carried out nuclear-magnetism development (MRI), difficult acquisition formed images clearly.
Therefore known draw-out device exists above-mentioned all inconvenience and problem.
Summary of the invention
The object of the invention is to propose a kind of draw-out device with enclosed space.
Another object of the present invention is to propose a kind of draw-out device and method of isolated impurity.
Another purpose of the present invention is to propose a kind of draw-out device and method that prevents air penetration.
A purpose more of the present invention is to propose a kind of draw-out device and method that prevents the oxygen infiltration.
For realizing above-mentioned purpose, technical solution of the present invention is:
A kind of draw-out device comprises a cylindrical shell, a piston, and a pull bar, a cushion feeding unit and a buffer cell is characterized in that:
Said cylindrical shell comprises a hollow chamber, and said hollow chamber has one first opening at the end of said cylindrical shell, and the front end that one second opening is positioned at said cylindrical shell is communicated with said hollow chamber;
Said piston is arranged in said hollow chamber; The edge of said piston contacts with the wall of said hollow chamber; And said hollow chamber is divided into first and second zone; Said first area is between the front end of said piston and said cylindrical shell, and said second area is between said piston and said first opening;
Said pull bar is connected to said piston, and moves said piston;
Said cushion feeding unit provides a cushion to said second area, gets into said first area to block impurity;
Said buffer cell makes said second area become an enclosed space and collects said cushion;
Wherein, when the end of the past said cylindrical shell of said piston moved, material was extracted to said first area via said second opening, and said cushion enters said buffer cell.
Draw-out device of the present invention can also adopt following technical measures further to realize.
Aforesaid draw-out device comprises also that wherein an application of force unit connects said pull bar.
Aforesaid draw-out device, wherein said cushion feeding unit comprises:
One pipeline passes said cylindrical shell and is communicated with said second area;
One cushion source connects said pipeline to supply said cushion.
Aforesaid draw-out device, but wherein said buffer cell comprises a Compression and Expansion container, but said Compression and Expansion container has the terminal driving fit of one the 3rd opening and said cylindrical shell, gets into said second area to intercept said impurity.
Aforesaid draw-out device, but but wherein said pull bar be positioned at said stretched container and engage with said stretched container bottom.
Aforesaid draw-out device, the size of wherein said the 3rd opening is identical with the external diameter of said cylindrical shell.
Aforesaid draw-out device, wherein said buffer cell comprises:
One bottom gets into said second area in order to seal said first opening to intercept said impurity, and said bottom has a through hole and supplies said pull bar to pass;
One pipeline passes said cylindrical shell and is communicated with said second area;
One container connects said pipeline.
Aforesaid draw-out device, wherein said bottom comprises:
One body has said through hole, and one first groove reaches the outer rim that one second groove is positioned at said through hole in order to engage the end of said cylindrical shell;
One sealing unit is arranged in said second groove, makes said pull bar and said through hole driving fit;
One fixed unit is in order to be fixed on said sealing unit on the said body.
Aforesaid draw-out device, the size of wherein said first groove is identical with the external diameter of said cylindrical shell.
Aforesaid draw-out device, wherein said sealing unit comprises a circular ring, the internal diameter of said circular ring is equal to or less than the external diameter of said pull bar.
Aforesaid draw-out device, the size of wherein said second groove is identical with the external diameter of said circular ring.
Aforesaid draw-out device, wherein said first and second groove lays respectively at two sides of said body.
Aforesaid draw-out device, wherein said fixed unit comprises:
One flat board has said through hole and passes for said pull bar;
Several screws are fixed in said flat board on the said body.
Aforesaid draw-out device, but wherein said container comprises the pocket of a deformation.
Aforesaid draw-out device comprises more that wherein a linear actuating device connects said pull bar.
A kind of draw-out device comprises a cylindrical shell, and one moves the unit, and a pull bar and a cushion feeding unit is characterized in that:
Said cylindrical shell comprises a hollow chamber, and said hollow chamber has one first opening at the end of said cylindrical shell, and the front end that one second opening is positioned at said cylindrical shell is communicated with said hollow chamber;
Said mobile unit is arranged in said hollow chamber; Said mobile unit pack contains a bay unit and first and second piston that is positioned at said bay unit both sides; The edge of said first and second piston contacts with the wall of said hollow chamber; And said hollow chamber is divided into one first, second and third zone, and said first area is between said first piston and said barrel front end, and said second area is between said first and second piston; Be a closed area, said the 3rd zone is between said second piston and said first opening;
Said pull bar is connected to said second piston, to move said mobile unit;
Said cushion feeding unit provides a cushion to said second area, gets into said first area to block impurity.
Draw-out device of the present invention can also adopt following technical measures further to realize.
Aforesaid draw-out device comprises also that wherein an application of force unit connects said pull bar.
Aforesaid draw-out device, wherein said cushion feeding unit comprises:
One pipeline passes said cylindrical shell;
One cushion source connects said pipeline to supply said cushion.
Aforesaid draw-out device comprises more that wherein a linear actuating device connects said pull bar.
A kind of abstracting method, in order to a material is extracted to a draw-out device, said draw-out device has a hollow chamber; One opening is positioned at the front end of said draw-out device; And one the piston that contacts with said hollow chamber said hollow chamber is divided into first and second zone, said first area is in communication with the outside through said opening, said second area is an enclosed space; It is characterized in that said abstracting method comprises the following steps:
First step: fill a cushion to said second area, with isolated impurity;
Second step: the end of said piston to said draw-out device moved, make said material be extracted to said first area through said opening;
Third step: said cushion is drained into a buffer cell, with said first and second the regional pressure of balance;
The 4th step: the amount that is extracted according to the said material of the volume calculations of said first area after the pressure balance.
Abstracting method of the present invention can also adopt following technical measures further to realize.
Aforesaid abstracting method wherein more comprises the impurity of removing in the said hollow chamber.
Aforesaid abstracting method, the step of the said cushion of wherein said filling to said second area comprise fills said cushion to whole said hollow chamber.
After adopting technique scheme, draw-out device of the present invention has the following advantages:
1. avoid being extracted material and in extraction process, cause the character deterioration because of impurity infiltrates.
2. the Security of enhancing substance extraction process.
Description of drawings
Fig. 1 is the schematic representation of known draw-out device;
Fig. 2 is first embodiment's schematic representation of draw-out device of the present invention;
Fig. 3 is the exploded view of Fig. 2;
Fig. 4 is second embodiment's schematic representation of draw-out device of the present invention;
Fig. 5 is the exploded view of Fig. 4;
Fig. 6 is the front view of bottom;
Fig. 7 is the 3rd embodiment's schematic representation of draw-out device of the present invention;
Fig. 8 is the 4th embodiment's schematic representation of draw-out device of the present invention;
Fig. 9 is the exploded view of Fig. 8;
Figure 10 uses the polarization gas extraction of draw-out device of the present invention and the schematic representation of transporting system;
Figure 11 is the flow chart of abstracting method of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the present invention is illustrated further.
See also Fig. 2 and Fig. 3, Fig. 2 is first embodiment's schematic representation of draw-out device of the present invention at present, and Fig. 3 is the exploded view of Fig. 2.As shown in the figure, said draw-out device 200 comprises a cylindrical shell 202, and it comprises a hollow chamber 210 and an opening 208; Hollow chamber 210 has an opening 207 at cylindrical shell 202 terminal 206, and opening 208 is positioned at cylindrical shell 202 front ends 204 and is communicated with hollow chamber 210, and a piston 216 is arranged in hollow chamber 210; Its edge contacts with the wall of hollow chamber 210, and hollow chamber 210 is divided into two zones 212 and 214, and zone 212 is between the front end 204 of piston 216 and cylindrical shell 202; Be in communication with the outside through opening 208, zone 214 is between piston 216 and opening 207, and an end of pull bar 218 (a for example Cylindrical object) connects piston 216; With mobile piston 216; Pipeline 230 passes cylindrical shell 202 and 214 is communicated with the zone, and cushion source 228 connecting pipelines 230 also constitute the cushion feeding units with pipeline 230, to provide a cushion to regional 214; Block impurity and get into zone 212, and a buffer cell 222 makes zone 214 become an enclosed space and collect said cushion.Piston 216 is processed with elastic material (for example Furtulon) in the present embodiment; The edge of piston 216 is closely contacted with the wall of hollow chamber 210; And but buffer cell 222 comprises a Compression and Expansion container 223; But an end of said Compression and Expansion container 223 has end 206 driving fits of opening 224 and cylindrical shell 202, and for example the size of opening 224 equals the external diameter of cylindrical shell 202, is accommodated in wherein with the end 206 with cylindrical shell 202.But the other end of Compression and Expansion container 223 is the closed area, makes the zone 214 become an enclosed space, gets into zone 214 to intercept said impurity, and pull bar 218 is positioned at and can stretches and compression container 223 and bottom it, 226 being connected.But when stretching Compression and Expansion container 223, piston 216 moves to the end 206 of cylindrical shell 202, and desire extracts material and is extracted to zone 212 via opening 208, but the cushion in the zone 214 enters in the stretched container 223.But when compression Compression and Expansion container 223, piston 216 moves to the front end 204 of cylindrical shell 202, but the cushion in the Compression and Expansion container 223 gets into zone 214, and the material that is extracted to zone 212 is discharged via opening 208.
See also Fig. 4～Fig. 6 again, Fig. 4 is second embodiment's schematic representation of draw-out device of the present invention, and Fig. 5 is the exploded view of Fig. 4, and Fig. 6 is the front view of bottom.As shown in the figure, said draw-out device 300 is by the buffer cell 222 in bottom 302, pipeline 306 and container 304 pie graphs 2.Said bottom 302 is in order to sealing opening 207, and it has through hole 314 and supplies pull bar 218 to pass, and gets into zone 214 to intercept said impurity; It comprises that body 308 has through hole 314 and passes for pull bar 218; The end 206 of groove 310 engage barrel 202 is with sealing opening 207, and groove 312 is positioned at the outer rim of through hole 314, and sealing unit 316 is arranged in groove 312; Make pull bar 218 and through hole 314 driving fits; Avoiding impurity to get into zone 214 via the space between pull bar 218 and the through hole 314, and fixed unit 318 is in order to being fixed on sealing unit 316 on the body 308, when avoiding pull bar 218 to move; Sealing unit 316 separates with body 308, causes impurity to get into zone 214 via the space between pull bar 218 and the through hole 314.Preferably more comprise the end that an application of force unit 220 (a for example tabular body) cylinder lever connecting rod 218 is not connected with piston 216, to make things convenient for user's application of force mobile piston 216.Pipeline 306 passes cylindrical shell 202 and is communicated with zone 214, and container 304 connecting pipelines 306 230 provide to the cushion in zone 214 to collect cushion source 210 by the road.In the present embodiment; The size of said groove 310 equals the external diameter of cylindrical shell 202, is accommodated in wherein with the end 206 with cylindrical shell 202, and the size of through hole 314 equals the external diameter of the pull bar 218 of pull bar; Sealing unit 316 comprises a circular ring (O-ring); Its internal diameter is equal to or slightly less than the external diameter of pull bar 208, and the size of groove 312 equals the external diameter of said circular ring, and groove 310 and 312 lays respectively at two sides of body 308.Fixed unit 318 comprises that dull and stereotyped 319 have through hole 321 and pass for pull bar 218, and screw 320 and 322 is fixed in flat board 319 on the body 308, and through hole 321 is all identical with the size and the position of through hole 314.In one embodiment, said groove 310 and 312 can be positioned at the same side of body 308.In another embodiment, pull bar 218 is disassembled device with application of force unit 220, after pull bar passes bottom 302 earlier, again with 220 combinations of application of force unit, with ease of assembly.Fig. 7 is the 3rd embodiment's schematic representation of draw-out device of the present invention; As shown in the figure; In various embodiment; More comprise the end that a linear actuating device 324 cylinder lever connecting rods 218 are not connected with piston 216, mechanically replace manpower mobile piston 216, reach the purpose of saving manpower and automation.
See also Fig. 8 and Fig. 9, Fig. 8 is the 4th embodiment's schematic representation of draw-out device of the present invention at present, and Fig. 9 is the exploded view of Fig. 8.As shown in the figure, said draw-out device 400 comprises a cylindrical shell 202, and it comprises a hollow chamber 210 and an opening 208; Hollow chamber 210 has an opening 207 at cylindrical shell 202 terminal 206, and opening 208 is positioned at cylindrical shell 202 front ends 204 and is communicated with hollow chamber 210, and one moves unit 402 is arranged in hollow chamber 210; It comprises a bay unit 406 (a for example Cylindrical object) and the piston 404 and 408 that is positioned at bay unit 406 both sides, and piston 404 and 408 edge contact with the wall of hollow chamber 210, and hollow chamber 210 is divided into three zones 410,412 and 414; Zone 410 is between the front end 204 of piston 404 and cylindrical shell 202; Be in communication with the outside through opening 208, zone 412 is an enclosed space between piston 404 and 408; Zone 414 is between piston 408 and opening 207; One end of pull bar 218 (a for example Cylindrical object) connects piston 408, and moving unit 402, the cushion feeding unit comprises that a cushion source 228 and passes the pipeline 230 of cylindrical shell 202; Cushion source 228 provides cushion to zone 412 via pipeline 230, gets into zone 410 to block impurity.When mobile pull bar 218 moves the end 206 that unit 402 past cylindrical shells 202; Also move toward the end 206 of cylindrical shell 202 in zone 412; Material is extracted in the zone 410 via opening 208, and the cushion in the zone 412 is isolated to be extracted material and impurity (for example air).Preferably more comprise the end that an application of force unit 220 (a for example tabular body) cylinder lever connecting rod 218 is not connected with linkage unit 216, move damper piston 402 to make things convenient for user's application of force.In various embodiment, the end that pull bar 218 is not connected with piston 408 connects a linear actuating device, mechanically replaces manpower and moves unit 402, reaches the purpose of saving manpower and automation.
Figure 10 uses the polarization gas extraction of draw-out device of the present invention and the schematic representation of transporting system; More particularly; Figure 10 uses polarization gas (the for example ultra polarization helium 3) extraction of draw-out device 300 shown in Figure 4 and the schematic representation of transporting system 500; In order to from base bottle 504, to extract polarization gas and it be delivered to object 508; System 500 comprise one said polarization gas is housed base bottle 504 by the road 502 and valve switch 512,514,518 and 520 connection opening 208; One object 508 (for example sampler bag) by the road 502 and valve switch 522 and 520 connection opening, 208, one source nitrogens 510 (a for example nitrogen steel cylinder) by the road 502 and valve switch 526,524,516 and 530 be connected to zone 214, provide nitrogen (being cushion) to zone 214 as a cushion source; To isolate polarization gas (i.e. the material of desire extraction) and air (i.e. the impurity of desire isolation); Container 304 by the road 502 and valve switch 532 be connected to the zone 214, with the nitrogen in the collecting zone 214, and a vacuum pump 506 is via valve switch 528 connecting pipelines 502.Before extracting the polarization gas in the base bottle 504 with draw-out device 300; Throttle down switch 512 and 526 and utilize vacuum pump 506 with pipeline 502, gas extraction device 300, container 304 and object 508 state that is evacuated; Follow throttle down switch 528; Open valve switch 526 is filled in pipeline 502, gas extraction device 300, container 304 and the object 508 nitrogen, valve switch 526 is closed again; Open valve switch 528; Utilize vacuum pump 506 that the nitrogen in pipeline 502, gas extraction device 300, container 304 and the object 508 is removed and make it become vacuum state, so repeat one, remove fully to guarantee to be unfavorable in pipeline 502, gas extraction device 300, container 304 and the object 508 impurity of polarization gas to secondary; Be vacuum state in the draw-out device 300 at this moment, piston 216 is positioned at the front end 204 of draw-out device 300.Follow throttle down switch 514,518-522,528 and 532, Open valve switch 526 is filled in the zone 214 nitrogen; The throttle down switch 516,524,526 and 530 afterwards; Open valve switch 512,514,518,520 and 532 moves piston 216 to bottom 302, with the polarization gas extraction in the base bottle 504 to zone 212; The space of this time domain 214 diminishes gradually, and nitrogen wherein enters container 304.When extracting to the quantity of required polarization gas throttle down switch 512,514 and 518, Open valve switch 522; The front end 204 of piston 216 to draw-out device 300 moved; Make the polarization gas in the zone 212 inject object 508, throttle down switch 520 and 522 is handled the polarization gas in the object 508 according to follow-up application afterwards; For example utilize the polarization gas in the nitrogen dilution object 508, suck with patients and carry out the nuclear-magnetism development.In this process; Zone 214 is an enclosed space; Extraneous impurity (for example air or oxygen) can not get in it, and is filled with nitrogen in the zone 214, via piston 216 and space between the zone 214 get into regional 212 be cushion but not impurity; Therefore the character of polarization gas can deterioration, and for example its polar biased rate can not change.
In one embodiment of this invention; But said buffer container 304 can be the pocket of a deformation, and on the draw-out device 300 volume of scale viewing area 212 is arranged, when extracting to the required rough volume of polarization gas; Throttle down switch 512,514,518 and 520; Make the pressure balance in zone 212 and 214, but because buffer container 304 is the pocket of deformation, and application of force unit 220 is arranged in atmosphere; Therefore the pressure after 212 and 214 balances of zone is a barometric pressure, obtains taking out the quantity with polarization gas to zone 212 via ideal gas equation formula PV=nRT.Wherein, P and V are respectively the pressure and the volume in zone 212, and n is the molal quantity (mol) of polarization gas in the zone 212, and R is an ideal gas constant, and T is the kelvin temperature in zone 212.
See also Figure 11 at last, Figure 11 is the flow chart 600 of abstracting method of the present invention.Please be simultaneously with reference to figure 4, Fig. 5 and Figure 11; In said step 610; Filling one can not make the cushion of desire extraction physical property deterioration to zone 214; Cause said desire to extract the impurity of physical property deterioration with isolation, for example when said desire extracts material for ultra polarization helium 3, the nitrogen that use can not influence its polar biased rate as cushion with air-isolation and oxygen.In step 620; Mobile piston 216 moves its terminad 206, and this time domain 214 diminishes gradually, and said desire extracts material and is extracted to zone 212 through opening 208; Via the entering zone, space 212 between piston 216 and the zone 214 is cushion; Significantly reduce to infiltrate the impurity in zone 212, reduce that desire extracts that material touches impurity and the probability that causes the deterioration of its character is guaranteed the Security of material extraction process.In step 630, the cushion in the zone 214 drains into container 304, makes the pressure balance in zone 212 and 214.In step 640; According to the volume of pressure balance rear region 212, calculate the amount of substance in extraction to the zone 212, for example when the material that extracts is gas; Can be according to the gas pressure and the volume of pressure balance rear region 212; Calculate the gas flow that extracts via the ideal gas equation formula, when being applied to extract liquid, can learn the amount of liquid of extraction via the scale on the draw-out device.Preferably in step 610, piston 216 moves to front end 204 along with the filling of cushion, makes whole hollow chamber 210 be full of cushion, desires to take out material and impurity to intercept fully.In one embodiment of this invention; More be included in before the step 610; Remove and make said desire extract the impurity of physical property deterioration in the zone 212 and 214; For example remove the said impurity in the zone 212 and 214, be extracted to the probability that material in the zone 212 touches impurity with further reduction with vacuum pump.
Above embodiment only supplies to explain the present invention's usefulness, but not limitation of the present invention, the technician in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or variation.Therefore, all technological schemes that are equal to also should belong to category of the present invention, should be limited each claim.
The element numbers explanation
100 draw-out devices
110 cylindrical shells
112 front ends
114 ends
120 pistons
122 spaces
130 pull bars
140 openings
150 hollow chamber
200 draw-out devices
202 cylindrical shells
204 front ends
206 ends
The 207-208 opening
210 hollow chamber
The 212-214 zone
216 pistons
218 pull bars
220 application of force unit
222 buffer cells
But 223 Compression and Expansion containers
224 openings
226 bottoms
228 cushion sources
230 pipelines
300 draw-out devices
302 bottoms
304 containers
306 pipelines
308 bodies
The 310-312 groove
314 through holes
316 sealing units
318 fixed units
319 flat boards
320 screws
321 through holes
322 screws
324 linear actuating devices
400 draw-out devices
402 move the unit
404 pistons
406 bay unit
408 pistons
The 410-414 zone
The extraction of 500 polarization gases and transporting system
502 pipelines
504 base bottles
506 vacuum pumps
508 objects
510 source nitrogens
The 512-532 valve switch
The flow chart of 600 abstracting methods
610 fill cushion
620 extract material
630 balance pressures
640 calculate the amount of substance that is extracted
Claims (22)
1. a draw-out device comprises a cylindrical shell, a piston, and a pull bar, a cushion feeding unit and a buffer cell is characterized in that:
Said cylindrical shell comprises a hollow chamber, and said hollow chamber has one first opening at the end of said cylindrical shell, and the front end that one second opening is positioned at said cylindrical shell is communicated with said hollow chamber;
Said piston is arranged in said hollow chamber; The edge of said piston contacts with the wall of said hollow chamber; And said hollow chamber is divided into first and second zone; Said first area is between the front end of said piston and said cylindrical shell, and said second area is between said piston and said first opening;
Said pull bar is connected to said piston, and moves said piston;
Said cushion feeding unit provides a cushion to said second area, gets into said first area to block impurity;
Said buffer cell makes said second area become an enclosed space and collects said cushion;
Wherein, when the end of the past said cylindrical shell of said piston moved, material was extracted to said first area via said second opening, and said cushion enters said buffer cell.
2. draw-out device as claimed in claim 1 is characterized in that, comprises that also an application of force unit connects said pull bar.
3. draw-out device as claimed in claim 1 is characterized in that, said cushion feeding unit comprises:
One pipeline passes said cylindrical shell and is communicated with said second area;
One cushion source connects said pipeline to supply said cushion.
4. draw-out device as claimed in claim 1 is characterized in that, but said buffer cell comprises a Compression and Expansion container, but said Compression and Expansion container has the terminal driving fit of one the 3rd opening and said cylindrical shell, gets into said second area to intercept said impurity.
5. draw-out device as claimed in claim 4 is characterized in that, but but said pull bar be positioned at said stretched container and engage with said stretched container bottom.
6. draw-out device as claimed in claim 4 is characterized in that, the size of said the 3rd opening is identical with the external diameter of said cylindrical shell.
7. draw-out device as claimed in claim 1 is characterized in that, said buffer cell comprises:
One bottom gets into said second area in order to seal said first opening to intercept said impurity, and said bottom has a through hole and supplies said pull bar to pass;
One pipeline passes said cylindrical shell and is communicated with said second area;
One container connects said pipeline.
8. draw-out device as claimed in claim 7 is characterized in that, said bottom comprises:
One body has said through hole, and one first groove reaches the outer rim that one second groove is positioned at said through hole in order to engage the end of said cylindrical shell;
One sealing unit is arranged in said second groove, makes said pull bar and said through hole driving fit;
One fixed unit is in order to be fixed on said sealing unit on the said body.
9. draw-out device as claimed in claim 8 is characterized in that, the size of said first groove is identical with the external diameter of said cylindrical shell.
10. draw-out device as claimed in claim 8 is characterized in that said sealing unit comprises a circular ring, and the internal diameter of said circular ring is equal to or less than the external diameter of said pull bar.
11. draw-out device as claimed in claim 10 is characterized in that, the size of said second groove is identical with the external diameter of said circular ring.
12. draw-out device as claimed in claim 8 is characterized in that, said first and second groove lays respectively at two sides of said body.
13. draw-out device as claimed in claim 8 is characterized in that, said fixed unit comprises:
One flat board has said through hole and passes for said pull bar;
Several screws are fixed in said flat board on the said body.
14. draw-out device as claimed in claim 7 is characterized in that, but said container comprises the pocket of a deformation.
15. draw-out device as claimed in claim 14 is characterized in that, comprises that more a linear actuating device connects said pull bar.
16. a draw-out device comprises a cylindrical shell, one moves the unit, and a pull bar and a cushion feeding unit is characterized in that:
Said cylindrical shell comprises a hollow chamber, and said hollow chamber has one first opening at the end of said cylindrical shell, and the front end that one second opening is positioned at said cylindrical shell is communicated with said hollow chamber;
Said mobile unit is arranged in said hollow chamber; Said mobile unit pack contains a bay unit and first and second piston that is positioned at said bay unit both sides; The edge of said first and second piston contacts with the wall of said hollow chamber; And said hollow chamber is divided into one first, second and third zone, and said first area is between said first piston and said barrel front end, and said second area is between said first and second piston; Be a closed area, said the 3rd zone is between said second piston and said first opening;
Said pull bar is connected to said second piston, to move said mobile unit;
Said cushion feeding unit provides a cushion to said second area, gets into said first area to block impurity.
17. draw-out device as claimed in claim 16 is characterized in that, comprises that also an application of force unit connects said pull bar.
18. draw-out device as claimed in claim 16 is characterized in that, said cushion feeding unit comprises:
One pipeline passes said cylindrical shell;
One cushion source connects said pipeline to supply said cushion.
19. draw-out device as claimed in claim 16 is characterized in that, comprises that more a linear actuating device connects said pull bar.
20. an abstracting method, in order to a material is extracted to a draw-out device, said draw-out device has a hollow chamber; One opening is positioned at the front end of said draw-out device; And one the piston that contacts with said hollow chamber said hollow chamber is divided into first and second zone, said first area is in communication with the outside through said opening, said second area is an enclosed space; It is characterized in that said abstracting method comprises the following steps:
First step: fill a cushion to said second area, with isolated impurity;
Second step: the end of said piston to said draw-out device moved, make said material be extracted to said first area through said opening;
Third step: said cushion is drained into a buffer cell, with said first and second the regional pressure of balance;
The 4th step: the amount that is extracted according to the said material of the volume calculations of said first area after the pressure balance.
21. abstracting method as claimed in claim 20 is characterized in that, more comprises the impurity of removing in the said hollow chamber.
22. abstracting method as claimed in claim 20 is characterized in that, the step of the said cushion of said filling to said second area comprises fills said cushion to whole said hollow chamber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101098641A CN101592144B (en) | 2008-05-30 | 2008-05-30 | Extracting device and method thereof |
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|---|---|---|---|
| CN2008101098641A CN101592144B (en) | 2008-05-30 | 2008-05-30 | Extracting device and method thereof |
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| CN101592144A CN101592144A (en) | 2009-12-02 |
| CN101592144B true CN101592144B (en) | 2012-07-25 |
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| CN101378277B (en) | 2007-08-29 | 2016-04-06 | 上海贝尔股份有限公司 | Multi-user pre-coding and dispatching method and realize the base station of the method |
Citations (7)
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| US4154434A (en) * | 1977-10-26 | 1979-05-15 | Wallis Bernard J | Boot arrangement for piston-cylinder assembly |
| US5297399A (en) * | 1992-09-24 | 1994-03-29 | Tieken James B | Manually operated refrigerant recovery device |
| JP2001115970A (en) * | 1999-10-18 | 2001-04-27 | Chuo Koeki Kk | Liquid filling device |
| DE10143003A1 (en) * | 2001-09-03 | 2003-03-20 | Bosch Rexroth Ag | Water driven hydraulic cylinder for closure and injection units of injection molding machines has seals between cylinder chamber and an external chamber for inert material |
| CN2614276Y (en) * | 2003-02-17 | 2004-05-05 | 董建军 | Air pressure type chemical material grouting pump |
| CN2721909Y (en) * | 2004-08-03 | 2005-08-31 | 李伯卿 | Plunger pump |
| CN1739035A (en) * | 2003-01-17 | 2006-02-22 | 医疗物理有限公司 | Pump system and method for transferring hyperpolarized gases |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4154434A (en) * | 1977-10-26 | 1979-05-15 | Wallis Bernard J | Boot arrangement for piston-cylinder assembly |
| US5297399A (en) * | 1992-09-24 | 1994-03-29 | Tieken James B | Manually operated refrigerant recovery device |
| JP2001115970A (en) * | 1999-10-18 | 2001-04-27 | Chuo Koeki Kk | Liquid filling device |
| DE10143003A1 (en) * | 2001-09-03 | 2003-03-20 | Bosch Rexroth Ag | Water driven hydraulic cylinder for closure and injection units of injection molding machines has seals between cylinder chamber and an external chamber for inert material |
| CN1739035A (en) * | 2003-01-17 | 2006-02-22 | 医疗物理有限公司 | Pump system and method for transferring hyperpolarized gases |
| CN2614276Y (en) * | 2003-02-17 | 2004-05-05 | 董建军 | Air pressure type chemical material grouting pump |
| CN2721909Y (en) * | 2004-08-03 | 2005-08-31 | 李伯卿 | Plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101592144A (en) | 2009-12-02 |
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