CN101592144A - Draw-out device and method - Google Patents
Draw-out device and method Download PDFInfo
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- CN101592144A CN101592144A CNA2008101098641A CN200810109864A CN101592144A CN 101592144 A CN101592144 A CN 101592144A CN A2008101098641 A CNA2008101098641 A CN A2008101098641A CN 200810109864 A CN200810109864 A CN 200810109864A CN 101592144 A CN101592144 A CN 101592144A
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Abstract
A kind of draw-out device comprises a cylindrical shell, a piston, one pull bar, a cushion feeding unit and a buffer cell, its middle cylinder body comprises a hollow chamber, hollow chamber has one first opening at the end of cylindrical shell, and the front end that one second opening is positioned at cylindrical shell is communicated with hollow chamber; Piston is arranged in hollow chamber, and the edge of piston contacts with the wall of hollow chamber, and hollow chamber is divided into first and second zone, and the first area is between the front end of piston and cylindrical shell, and second area is between the piston and first opening; Pull bar is connected to piston, and mobile piston; The cushion feeding unit provides a cushion to second area, enters the first area to block impurity; Buffer cell makes second area become an enclosed space and collects cushion; When piston during toward cylindrical shell terminal mobile, material is extracted to the first area via second opening, and cushion enters buffer cell.
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, as shown in the figure, known draw-out device 100 comprises a cylindrical shell 110, it comprises a hollow chamber 150, the front end 112 that one opening 140 is positioned at cylindrical shell 110 is communicated with hollow chamber 150, one 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 is 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, air for example, and impurity can enter by the space 122 between piston 120 and the hollow chamber 150 and be arranged in piston 120 hollow chamber 150 before when piston 120 is mobile backward, therefore when extracting material, attached to the impurity of hollow chamber's 150 walls and the impurity that enters 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 super polarization helium 3 (
3He) time, because the paramagnetism of oxygen can cause super polarization
3The depolarizing of He, therefore attached to the oxygen of hollow chamber's 150 walls and the oxygen that enters via space 122, feasible super polarization
3The slow time T of He
1Significantly reduce, cause the super polarization of using draw-out device 100 to extract
3When He carries out nuclear-magnetism development (MRI), difficult acquisition imaging clearly.
Therefore known draw-out device exists above-mentioned all inconvenience and problem.
Summary of the invention
Purpose of the present 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 further object of the present invention is to propose a kind of draw-out device and method that prevents the oxygen infiltration.
For achieving the above object, 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:
Described cylindrical shell comprises a hollow chamber, and described hollow chamber has one first opening at the end of described cylindrical shell, and the front end that one second opening is positioned at described cylindrical shell is communicated with described hollow chamber;
Described piston is arranged in described hollow chamber, the edge of described piston contacts with the wall of described hollow chamber, and described hollow chamber is divided into first and second zone, described first area is between the front end of described piston and described cylindrical shell, and described second area is between described piston and described first opening;
Described pull bar is connected to described piston, and moves described piston;
Described cushion feeding unit provides a cushion to described second area, enters described first area to block impurity;
Described buffer cell makes described second area become an enclosed space and collects described cushion;
Wherein, when described piston during toward described cylindrical shell terminal mobile, material is extracted to described first area via described second opening, and described cushion enters described buffer cell.
Draw-out device of the present invention can also be further achieved by the following technical measures.
Aforesaid draw-out device comprises also that wherein an application of force unit connects described pull bar.
Aforesaid draw-out device, wherein said cushion feeding unit comprises:
One pipeline passes described cylindrical shell and is communicated with described second area;
One cushion source connects described pipeline to supply described cushion.
Aforesaid draw-out device, but wherein said buffer cell comprises a Compression and Expansion container, but described Compression and Expansion container has the terminal driving fit of one the 3rd opening and described cylindrical shell, enters described second area to intercept described impurity.
Aforesaid draw-out device, but but wherein said pull bar be positioned at described stretched container and engage with described stretched container bottom.
Aforesaid draw-out device, the size of wherein said the 3rd opening is identical with the external diameter of described cylindrical shell.
Aforesaid draw-out device, wherein said buffer cell comprises:
One bottom enters described second area in order to seal described first opening to intercept described impurity, and described bottom has a through hole and passes for described pull bar;
One pipeline passes described cylindrical shell and is communicated with described second area;
One container connects described pipeline.
Aforesaid draw-out device, wherein said bottom comprises:
One body has described through hole, and one first groove reaches the outer rim that one second groove is positioned at described through hole in order to engage the end of described cylindrical shell;
One sealing unit is arranged in described second groove, makes described pull bar and described through hole driving fit;
One fixed unit is in order to be fixed on described sealing unit on the described body.
Aforesaid draw-out device, the size of wherein said first groove is identical with the external diameter of described cylindrical shell.
Aforesaid draw-out device, wherein said sealing unit comprises a circular ring, the internal diameter of described circular ring is equal to or less than the external diameter of described pull bar.
Aforesaid draw-out device, the size of wherein said second groove is identical with the external diameter of described circular ring.
Aforesaid draw-out device, wherein said first and second groove lays respectively at two sides of described body.
Aforesaid draw-out device, wherein said fixed unit comprises:
One flat board has described through hole and passes for described pull bar;
Several screws are fixed in described flat board on the described 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 described pull bar.
A kind of draw-out device comprises a cylindrical shell, a mobile unit, and a pull bar and a cushion feeding unit is characterized in that:
Described cylindrical shell comprises a hollow chamber, and described hollow chamber has one first opening at the end of described cylindrical shell, and the front end that one second opening is positioned at described cylindrical shell is communicated with described hollow chamber;
Described mobile unit is arranged in described hollow chamber, described mobile unit includes one, and at interval unit and described first and second piston are positioned at the both sides of unit, described interval, the edge of described first and second piston contacts with the wall of described hollow chamber, and described hollow chamber is divided into one first, second and third zone, described first area is between described first piston and described barrel front end, described second area is between described first and second piston, be a closed area, described the 3rd zone is between described second piston and described first opening;
Described pull bar is connected to described second piston, to move described mobile unit;
Described cushion feeding unit provides a cushion to described second area, enters described first area to block impurity.
Draw-out device of the present invention can also be further achieved by the following technical measures.
Aforesaid draw-out device comprises also that wherein an application of force unit connects described pull bar.
Aforesaid draw-out device, wherein said cushion feeding unit comprises:
One pipeline passes described cylindrical shell;
One cushion source connects described pipeline to supply described cushion.
Aforesaid draw-out device comprises more that wherein a linear actuating device connects described pull bar.
A kind of abstracting method, in order to a material is extracted to a draw-out device, described draw-out device has a hollow chamber, one opening is positioned at the front end of described draw-out device, and one the piston that contacts with described hollow chamber described hollow chamber is divided into first and second zone, described first area is in communication with the outside through described opening, described second area is an enclosed space, it is characterized in that described abstracting method comprises the following steps:
First step: fill a cushion to described second area, with isolated impurity;
Second step: the end of described piston to described draw-out device moved, make described material be extracted to described first area through described opening;
Third step: described cushion is drained into a buffer cell, with described first and second the regional pressure of balance;
The 4th step: the amount that is extracted according to the described material of the volume calculations of described first area after the pressure balance.
Abstracting method of the present invention can also be further achieved by the following technical measures.
Aforesaid abstracting method wherein more comprises the impurity of removing in the described hollow chamber.
Aforesaid abstracting method, the described cushion of wherein said filling to the step of described second area comprises that the described cushion of filling is to whole described 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.
Now see also Fig. 2 and Fig. 3, Fig. 2 is first embodiment's schematic representation of draw-out device of the present invention, and Fig. 3 is the exploded view of Fig. 2.As shown in the figure, described draw-out device 200 comprises a cylindrical shell 202, it comprises a hollow chamber 210 and an opening 208, hollow chamber 210 has an opening 207 at cylindrical shell 202 ends 206, opening 208 is positioned at cylindrical shell 202 front ends 204 and is communicated with hollow chamber 210, one piston 216 is arranged in hollow chamber 210, its edge contacts with the wall of hollow chamber 210, hollow chamber 210 is divided into two zones 212 and 214, 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, one end of pull bar 218 (a for example Cylindrical object) connects piston 216, and with mobile piston 216, pipeline 230 passes cylindrical shell 202 and is communicated with zone 214, cushion source 228 connecting pipelines 230 also constitute the cushion feeding units with pipeline 230, to provide a cushion, block impurity and enter zone 212, and a buffer cell 222 makes zone 214 become an enclosed space and collect described cushion to zone 214.Piston 216 is made 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 described Compression and Expansion container 223 has end 206 driving fits of opening 224 and cylindrical shell 202, 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, enters zone 214 to intercept described impurity, and pull bar 218 is positioned at and can stretches and compression container 223 and 226 being connected bottom it.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 enters 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, described draw-out device 300 is by the buffer cell 222 in bottom 302, pipeline 306 and container 304 pie graphs 2.Described bottom 302 is in order to sealing opening 207, it has through hole 314 and passes for pull bar 218, enter zone 214 to intercept described 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, sealing unit 316 is arranged in groove 312, make pull bar 218 and through hole 314 driving fits, to avoid impurity to enter zone 214 via the space between pull bar 218 and the through hole 314, and fixed unit 318 is in order to be 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 enter 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 by the road to collect cushion source 210.In the present embodiment, the size of described groove 310 equals the external diameter of cylindrical shell 202, be accommodated in wherein with end 206 cylindrical shell 202, 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 described 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, described 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 different embodiments, 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.
Now see also Fig. 8 and Fig. 9, Fig. 8 is the 4th embodiment's schematic representation of draw-out device of the present invention, and Fig. 9 is the exploded view of Fig. 8.As shown in the figure, described draw-out device 400 comprises a cylindrical shell 202, it comprises a hollow chamber 210 and an opening 208, hollow chamber 210 has an opening 207 at cylindrical shell 202 ends 206, opening 208 is positioned at cylindrical shell 202 front ends 204 and is communicated with hollow chamber 210, one mobile unit 402 is arranged in hollow chamber 210, it comprises a unit 406 (a for example Cylindrical object), interval and is positioned at the piston 404 and 408 of 406 both sides, unit at interval, piston 404 and 408 edge contact with the wall of hollow chamber 210, 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 between piston 404 and 408, it is an enclosed space, zone 414 is between piston 408 and opening 207, one end of pull bar 218 (a for example Cylindrical object) connects piston 408, with mobile mobile 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, enters zone 410 to block impurity.When mobile pull bar 218 moves the end 206 of mobile 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, isolated material and the impurity (for example air) of being extracted of the cushion in the zone 412.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 different embodiments, the end that pull bar 218 is not connected with piston 408 connects a linear actuating device, mechanically replaces manpower and moves mobile 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 (for example super 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 comprises a base bottle 504 that described polarization gas is housed 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 nitrogen 510 (a for example nitrogen steel cylinder) by the road 502 and valve switch 526,524,516 and 530 are 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 the polarization gas that extracts with draw-out device 300 in the base bottle 504, 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, make nitrogen be filled to pipeline 502, gas extraction device 300, in container 304 and the object 508, again valve switch 526 is closed, Open valve switch 528, utilize vacuum pump 506 with pipeline 502, gas extraction device 300, nitrogen in container 304 and the object 508 is removed and is made it become vacuum state, so repeat one to secondary, to guarantee pipeline 502, gas extraction device 300, be unfavorable in container 304 and the object 508 that the impurity of polarization gas removes fully, 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, nitrogen is filled in the zone 214, 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 enter in it, and be filled with nitrogen in the zone 214, via piston 216 and zone the space between 214 enter zone 212 for 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 described buffer container 304 can be the pocket of a deformation, and the volume that scale viewing area 212 is arranged on the draw-out device 300, 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, because but 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 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 also refer to Fig. 4, Fig. 5 and Figure 11, in described step 610, filling one can not make desire extract the cushion of physical property deterioration to zone 214, cause described desire to extract the impurity of physical property deterioration with isolation, for example when described desire extracts material for super 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, this time domain 214 diminishes gradually, described desire extracts material and is extracted to zone 212 through opening 208, enter the cushion that is in zone 212 via the space between piston 216 and the zone 214, 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, volume according to pressure balance rear region 212, calculate to extract the amount of substance 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 described desire extract the impurity of physical property deterioration in the zone 212 and 214, for example remove described 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 is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique under the situation that does not break away from the spirit and scope of the present invention, can also be made various conversion or variation.Therefore, all technological schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
The assembly symbol description
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 mobile units
404 pistons
Unit, 406 interval
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:
Described cylindrical shell comprises a hollow chamber, and described hollow chamber has one first opening at the end of described cylindrical shell, and the front end that one second opening is positioned at described cylindrical shell is communicated with described hollow chamber;
Described piston is arranged in described hollow chamber, the edge of described piston contacts with the wall of described hollow chamber, and described hollow chamber is divided into first and second zone, described first area is between the front end of described piston and described cylindrical shell, and described second area is between described piston and described first opening;
Described pull bar is connected to described piston, and moves described piston;
Described cushion feeding unit provides a cushion to described second area, enters described first area to block impurity;
Described buffer cell makes described second area become an enclosed space and collects described cushion;
Wherein, when described piston during toward described cylindrical shell terminal mobile, material is extracted to described first area via described second opening, and described cushion enters described buffer cell.
2. draw-out device as claimed in claim 1 is characterized in that, comprises that also an application of force unit connects described pull bar.
3. draw-out device as claimed in claim 1 is characterized in that, described cushion feeding unit comprises:
One pipeline passes described cylindrical shell and is communicated with described second area;
One cushion source connects described pipeline to supply described cushion.
4. draw-out device as claimed in claim 1 is characterized in that, but described buffer cell comprises a Compression and Expansion container, but described Compression and Expansion container has the terminal driving fit of one the 3rd opening and described cylindrical shell, enters described second area to intercept described impurity.
5. draw-out device as claimed in claim 4 is characterized in that, but but described pull bar be positioned at described stretched container and engage with described stretched container bottom.
6. draw-out device as claimed in claim 4 is characterized in that, the size of described the 3rd opening is identical with the external diameter of described cylindrical shell.
7. draw-out device as claimed in claim 1 is characterized in that, described buffer cell comprises:
One bottom enters described second area in order to seal described first opening to intercept described impurity, and described bottom has a through hole and passes for described pull bar;
One pipeline passes described cylindrical shell and is communicated with described second area;
One container connects described pipeline.
8. draw-out device as claimed in claim 7 is characterized in that, described bottom comprises:
One body has described through hole, and one first groove reaches the outer rim that one second groove is positioned at described through hole in order to engage the end of described cylindrical shell;
One sealing unit is arranged in described second groove, makes described pull bar and described through hole driving fit;
One fixed unit is in order to be fixed on described sealing unit on the described body.
9. draw-out device as claimed in claim 8 is characterized in that, the size of described first groove is identical with the external diameter of described cylindrical shell.
10. draw-out device as claimed in claim 8 is characterized in that described sealing unit comprises a circular ring, and the internal diameter of described circular ring is equal to or less than the external diameter of described pull bar.
11. draw-out device as claimed in claim 10 is characterized in that, the size of described second groove is identical with the external diameter of described circular ring.
12. draw-out device as claimed in claim 8 is characterized in that, described first and second groove lays respectively at two sides of described body.
13. draw-out device as claimed in claim 8 is characterized in that, described fixed unit comprises:
One flat board has described through hole and passes for described pull bar;
Several screws are fixed in described flat board on the described body.
14. draw-out device as claimed in claim 7 is characterized in that, but described 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 described pull bar.
16. a draw-out device comprises a cylindrical shell, a mobile unit, and a pull bar and a cushion feeding unit is characterized in that:
Described cylindrical shell comprises a hollow chamber, and described hollow chamber has one first opening at the end of described cylindrical shell, and the front end that one second opening is positioned at described cylindrical shell is communicated with described hollow chamber;
Described mobile unit is arranged in described hollow chamber, described mobile unit includes one, and at interval unit and described first and second piston are positioned at the both sides of unit, described interval, the edge of described first and second piston contacts with the wall of described hollow chamber, and described hollow chamber is divided into one first, second and third zone, described first area is between described first piston and described barrel front end, described second area is between described first and second piston, be a closed area, described the 3rd zone is between described second piston and described first opening;
Described pull bar is connected to described second piston, to move described mobile unit;
Described cushion feeding unit provides a cushion to described second area, enters described 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 described pull bar.
18. draw-out device as claimed in claim 16 is characterized in that, described cushion feeding unit comprises:
One pipeline passes described cylindrical shell;
One cushion source connects described pipeline to supply described cushion.
19. draw-out device as claimed in claim 16 is characterized in that, comprises that more a linear actuating device connects described pull bar.
20. abstracting method, in order to a material is extracted to a draw-out device, described draw-out device has a hollow chamber, one opening is positioned at the front end of described draw-out device, and one the piston that contacts with described hollow chamber described hollow chamber is divided into first and second zone, described first area is in communication with the outside through described opening, described second area is an enclosed space, it is characterized in that described abstracting method comprises the following steps:
First step: fill a cushion to described second area, with isolated impurity;
Second step: the end of described piston to described draw-out device moved, make described material be extracted to described first area through described opening;
Third step: described cushion is drained into a buffer cell, with described first and second the regional pressure of balance;
The 4th step: the amount that is extracted according to the described material of the volume calculations of described 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 described hollow chamber.
22. abstracting method as claimed in claim 20 is characterized in that, the described cushion of described filling to the step of described second area comprises that the described cushion of filling is to whole described hollow chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101098641A CN101592144B (en) | 2008-05-30 | 2008-05-30 | Extracting device and method thereof |
Applications Claiming Priority (1)
| 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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| CN101592144A true CN101592144A (en) | 2009-12-02 |
| CN101592144B CN101592144B (en) | 2012-07-25 |
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| CN2008101098641A Expired - Fee Related CN101592144B (en) | 2008-05-30 | 2008-05-30 | Extracting device and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101381130B1 (en) | 2007-08-29 | 2014-04-04 | 알까뗄 루슨트 | Multi-user precoding and scheduling method and base station for implementing the method |
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| 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 |
| US20060269614A1 (en) * | 2003-01-17 | 2006-11-30 | Ian Nelson | Multi-cell polarizer systems for hyperpolarizing 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 |
-
2008
- 2008-05-30 CN CN2008101098641A patent/CN101592144B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101381130B1 (en) | 2007-08-29 | 2014-04-04 | 알까뗄 루슨트 | Multi-user precoding and scheduling method and base station for implementing the method |
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| Publication number | Publication date |
|---|---|
| CN101592144B (en) | 2012-07-25 |
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