CN110177944A - Liquid-supplying system - Google Patents
Liquid-supplying system Download PDFInfo
- Publication number
- CN110177944A CN110177944A CN201880006946.5A CN201880006946A CN110177944A CN 110177944 A CN110177944 A CN 110177944A CN 201880006946 A CN201880006946 A CN 201880006946A CN 110177944 A CN110177944 A CN 110177944A
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- China
- Prior art keywords
- liquid
- pump chamber
- flow path
- opening portion
- supplying system
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
- F04B45/022—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows with two or more bellows in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
- F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/06—Venting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
- F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
- F04B2015/081—Liquefied gases
- F04B2015/082—Helium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
- F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
- F04B2015/081—Liquefied gases
- F04B2015/0824—Nitrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/11—Kind or type liquid, i.e. incompressible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Reciprocating Pumps (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention provides a kind of liquid-supplying system that can efficiently cool down.Liquid-supplying system of the invention includes container (130), and inside includes pump chamber (P1, P2), and is equipped with the suction inlet (131b) of liquid and sends out mouth (131c)；Pipe (320) is sent out, the liquid that will be discharged from the submitting mouth (131c) of the container (130) is to exterior guiding；Flow path, from the suction inlet (131b) by the pump chamber (P1, P2), also, the liquid is flowed from the pump chamber (P1, P2) towards the submitting mouth (131c) to vertical direction downside；First opening portion (601), is configured in the flow path；Second opening portion (604) is arranged than first opening portion (601) closer to the downstream side in the flow path；And exhaust pipe (602), it is connect with first opening portion (601) and second opening portion (604)；Wherein, second opening portion (604) configures than first opening portion (601) closer to vertical direction upside.
Description
Technical field
The present invention relates to a kind of liquid-supplying systems for supplying liquid.
Background technique
It is well known to have with being formed by bellows as a kind of liquid-supplying system for circulating liquid to circulation stream
The bellowspump (referring to patent document 1) of pump chamber.The system is that there are two pump chambers for tool in vertically upward and downward directions, is constituted each
The bellows of pump chamber is fixed on the axis for carrying out up and down direction driving by driver, and links to carry out up and down with the movement of axis
It stretches in direction.
In order to heat-insulated, pump installation is integrally accommodated in vacuum tank, and the top of vacuum tank is equipped with driver.In order to every
Heat, it is preferable that submitting of the liquid of suction line and self-pumping apparatus in future externally to pump installation supply liquid to outside discharge
Pipe is connect in the position for being away as far as possible extraneous gas with pump installation.Suction line and submitting top of the pipe from vacuum tank as a result,
Into in vacuum tank, position more lower than pump installation is extended to, with the opening of U-shaped connection pump installation bottom.By will be with
The piping of pump installation connection is arranged to such shape, realizes for the high heat-proof quality from external heat.Such structure
Bellowspump be suitable for supplying the super-low liquids such as liquid nitrogen, liquid helium to the cooled device such as superconducting apparatus use on the way.
But when making the bellowspump operation for assembling maintenance under normal temperature environment for the supply for cryogenic liquid,
The step of firstly the need of temperature by the structure member of pump installation from room temperature cooling to cryogenic liquid.This is because if structural portion
The temperature of part is high, and cryogenic liquid evaporates in bellows chamber becomes gas-liquid mixture phase, and pump can not work normally.As cooling pump
The method of device, there are following methods, that is, make cryogenic liquid flow into pump installation, between structure member and cryogenic liquid into
Row heat exchange gradually reduces the temperature of structure member.In the method, from the bottom of pump installation flow into cryogenic liquid before this under
The bellows pump chamber in portion, the bellows pump chamber followed by top is gradually full of inside pump installation in this way, on the water level of cryogenic liquid
It rises.But in the cooling means, there are the following problems, that is, needs to grow very much in order to which bellowspump is cooled to operational temperature
Time.
The reason for this is that in the state that the water level of the cryogenic liquid in pump installation is low, pump configuration component and cryogenic liquid
Liquid contact surface product is small, therefore, low in the initial stage cooling efficiency of cooling step.In addition, the temperature in pump configuration component is high
Under state, cryogenic liquid evaporation, gas is trapped in pump chamber, interferes the inflow of cryogenic liquid.Further, since being two bellowss
The structure that pump chamber is arranged above and below, if using the pump chamber of top as the first pump chamber, the pump chamber of lower section flows into pump dress as the second pump chamber
The liquid set is flowed out from the outlet of the second pump chamber, and water level is difficult on the height for rising to the outlet of the second pump chamber.Therefore,
It is very time-consuming for the cooling of the first pump chamber there are when the first pump chamber on the outlet of the second pump chamber.In addition, high in order to obtain
Discharge pressure, pump component parts uses the metal material of high rigidity, if the metallic surface that cryogenic liquid contact heat conductien rate is high, low
The gas covering metallic surface of geothermal liquid gasification and generation.The phenomenon is known as film boiling.In the gas that the metal surface is formed
Layer plays a role as thermal insulation layer, interferes the heat transfer of cryogenic liquid and pump configuration component.
Patent document 1: International Publication No. 2016/006648
Summary of the invention
The purpose of the present invention is to provide the liquid-supplying systems that one kind can be cooled down efficiently.
The present invention uses following scheme in order to solve the above problems.
That is, liquid-supplying system of the invention includes:
Container, inside include pump chamber, and are equipped with the suction inlet of liquid and send out mouth；
Pipe is sent out, by the liquid being discharged from the submitting mouth to exterior guiding；
Flow path, from the suction inlet by the pump chamber, also, the liquid from the pump chamber towards the submitting mouth and
It is flowed on the downside of to vertical direction；
First opening portion is configured in the flow path；
Second opening portion is arranged than first opening portion closer to the downstream side in the flow path；And
Exhaust pipe is connect with first opening portion and second opening portion,
Wherein, second opening portion is configured than first opening portion closer to vertical direction upside.
Liquid-supplying system of the invention includes the flow path that liquid is flowed from pump chamber to vertical direction downside.Moreover, if liquid
Volume is there are on the downside of vertical direction, and when generating gas in container, the gas in container can not be discharged.For example, in order to will locate
Liquid-supplying system under normal temperature environment is flowed into for the circulation of super-low liquid and in the cooling step before the work that carries out
The cooling of system is evaporated in container with liquid, it is thereby possible to generate such situation.
Liquid-supplying system according to the present invention, there are when gas like this in container, that is, by the flow path of pump chamber
There are when gas, the gas in flow path can be expelled to the outside of container by exhaust pipe.Moreover, being able to suppress air volume
There are in container.If gas accumulation in container, flows into cryogenic liquid and cooling system, sometimes, cryogenic liquid is become difficult to
It flows into, the time required for cooling step is elongated, according to the present invention, due to being able to suppress gas accumulation in container, can contract
Time required for short cooling step.Moreover, liquid-supplying system can efficiently be cooled down by flowing into cryogenic liquid.According to
Therefore the present invention, the step of capable of shortening the liquid-supplying system under cooling normal temperature environment required time are able to suppress and are
The setting operation of system and the working hour of upkeep operation increase.Furthermore it is possible to inhibit the consumption of cryogenic liquid in cooling step.
Preferably, second opening portion is set in the submitting pipe.
Thereby, it is possible to which the gas for accumulating in pump chamber top is expelled to submitting pipe, submitting pipe can be shared, liquid is supplied to
The exhaust gear being arranged before can reduce the position of liquid and external contact, accordingly, it is difficult to cause heat for system entirety
Exchange, is able to suppress the consumption of cryogenic liquid.
Preferably, the present invention can be suitable for the liquid-supplying system including bellows pump.That is,
Include:
Shaft member vertically moves back and forth in the container；And
First bellows and the second bellows, are vertically arranged, also, with the round-trip shifting of the shaft member
It moves and stretches,
The pump chamber includes:
Space around the outer peripheral surface of first bellows is formed by the first pump chamber；And
Space around the outer circumference end of second bellows is formed by the second pump chamber,
The flow path includes:
First flow path, liquid send output flow described in by first pump chamber from the suction inlet；And
Second flow path, liquid send output flow described in by second pump chamber from the suction inlet,
Wherein, the exhaust pipe is set at least one of the first flow path and the second flow path.
In the liquid-supplying system, gas is easy to accumulate in the pump chamber positioned at vertical upper side.According to above structure, exhaust
Pipe is set at least one of first flow path and second flow path, therefore, will can easily pass through the flow path of the pump chamber of top
The gas of middle accumulation is discharged to outside.It, can be by the way that cryogenic liquid be flowed into the first pump chamber and the according to the liquid-supplying system
Two pump chambers and efficiently cool down each pump chamber.
Preferably, first pump chamber is arranged than second pump chamber closer to vertical direction upside,
Outlet of first opening portion than first pump chamber is arranged closer to vertical direction upside.
In the liquid-supplying system, gas is easy to accumulate in the area of the near exit of Vertical Square the first pump chamber to the upper side
Domain.According to above structure, the first opening portion of exhaust pipe is set to the outlet than first pump chamber closer on the upside of vertical direction,
Therefore, the gas in container can easily be discharged.
In addition, above-mentioned each structure can combine use in feasible range.
As described above, liquid-supplying system of the invention can be cooled down efficiently.
Detailed description of the invention
Fig. 1 is the sketch structure figure of the liquid-supplying system of the embodiment of the present invention.
Fig. 2 is the sketch structure figure of the liquid-supplying system of the embodiment of the present invention.
Fig. 3 is the schematic cross sectional views of the liquid-supplying system of the embodiment of the present invention.
Symbol description
10 liquid-supplying systems
100 system ontologies
110 linear actuators
120 shaft members
121 shaft body portions
122 cylindrical portions
122a upper end side extroversion flange portion
122b lower end side extroversion flange portion
123 interconnecting pieces
130 containers
131 chest portions
The opening portion 131a
131b suction inlet
131c sends out mouth
131d flow path
131e flow path
131X body part
To flange portion in 131Xa first
To flange portion in 131Xb second
131Xc first flow path
131Xd second flow path
131Xg third flow path
131Y base plate
141 first bellowss
142 second bellowss
151 third bellowss
152 the 4th bellowss
160 check-valves
160A first check-valve
160B second check-valve
160C third check-valves
The 4th check-valves of 160D
200 vacuum tanks
310 suction lines
320 send out pipe
401 first pump chamber entrances
The outlet of 402 first pump chambers
403 second pump chamber entrances
The outlet of 404 second pump chambers
601 first opening portions
602 exhaust pipes
603 bolts
604 second opening portions
The first pump chamber of P1
The second pump chamber of P2
Specific embodiment
Next, mode for carrying out the present invention is illustratively described in detail based on embodiment referring to attached drawing.Wherein,
Size, material, shape, its relative configuration of the structure member recorded in the embodiment etc. are recorded, not table as long as no specific
Show that the scope of the present invention is only limitted to this.
(embodiment)
Referring to Fig.1~Fig. 3 illustrates the liquid-supplying system of the embodiment of the present invention.The liquid-supplying system example of the present embodiment
Such as can suitably it be used to make superconducting apparatus maintain ultra low temperature state.That is, needing to make superconducting coil etc. in superconducting apparatus
It is often cooling.Therefore, by often supplying liquid (liquid nitrogen, liquid of ultralow temperature to the cooled device including superconducting coil etc.
Helium), cooled device is often cooled down.More specifically, circulation stream of the setting by the device that is cooled, also, in the circulation
The liquid-supplying system that the present embodiment is installed in flow path keeps cooled device frequent thereby, it is possible to make the liquid circulation of ultralow temperature
It is cooling.
<overall structure of liquid-supplying system>
Fig. 1, Fig. 2 are the sketch structure figures of the liquid-supplying system entirety of the embodiment of the present invention, are represented from section
The figure of liquid-supplying system entirety Sketch.In addition, Fig. 1, Fig. 2 are represented liquid-supplying system comprising center axis thereof
Face at the Sketch of section splitted, but for convenience of explanation, by the liquid-supplying system of cylindrical shape it is circumferential not
Section with position is indicated with an attached drawing.Specifically, on the left of Fig. 1, Fig. 2 central axis, there is shown exhaust pipe is very clear
Position (position indicated by the BB of Fig. 3) section, on the right side of the central axis of Fig. 1, there is shown pass through the second pump chamber
The section of the very specific position (position indicated by the DD of Fig. 3) of second flow path, on the right side of the central axis of Fig. 2, there is shown
Pass through the section of the very specific position (position indicated by the CC of Fig. 3) of the first flow path of the first pump chamber.
The liquid-supplying system 10 of the present embodiment include liquid-supplying system ontology (hereinafter referred to as system ontology 100),
It is internally provided with vacuum tank 200 and the piping (suction line 310 and submitting pipe 320) of system ontology 100.It suction line 310 and send
Outlet pipe 320 enters the inside of vacuum tank 200 from the outside of vacuum tank 200, connect with system ontology 100.Vacuum tank
200 inside is closed, in the inside of vacuum tank 200, system ontology 100, suction line 310 and the space for sending out 320 outside of pipe
Maintain vacuum state.The space has heat insulating function as a result,.Liquid-supplying system 10 is generally arranged on horizontal plane.It is being arranged
In the state of liquid-supplying system 10, top is above vertical direction in Fig. 1, Fig. 2, and lower section is vertical direction in Fig. 1, Fig. 2
Lower section.
System ontology 100 includes as the linear actuator 110 of driving source, by linear actuator 110 in vertical direction
The shaft member 120 and container 130 of upper round-trip.In addition, linear actuator 110 is fixed on any position, fixed position can be with
It is container 130, it can also be with other positions (not shown).Container 130 includes chest portion 131.Shaft member 120 is set in such a way
It sets: from the outside of container 130, entering inside container through the opening portion 131a being arranged upper at the top of chest portion 131.In addition, chest portion
131 bottom is equipped with the suction inlet 131b of liquid and sends out mouth 131c.The above-mentioned connection of suction line 310 is provided with suction inlet 131b
Position, send out pipe 320 connection be provided with send out mouth 131c position.
The inside of chest portion 131 includes multiple components, is formed by multiple spaces that these multiple components are divided multiple
The flow path and heat-insulated vacuum chamber of pump chamber, liquid.Hereinafter, the internal structure of the chest portion 131 is described in more detail.
Shaft member 120 has shaft body portion 121, internal to have hollow portion；Cylindrical portion 122, to surround shaft body portion
The mode of 121 periphery surface side is arranged；And interconnecting piece 123, connecting shaft body part 121 and cylindrical portion 122.In addition, cylinder
The upper end in portion 122 is equipped with upper end side extroversion flange portion 122a, and the lower end of cylindrical portion 122 is equipped with lower end side extroversion flange portion 122b.
Chest portion 131 includes the body part 131X and base plate 131Y of substantially tubular.In addition, body part 131X is set
It is placed in first near the centre of short transverse into flange portion 131Xa and be set to top second to flange portion 131Xb.
The inside of body part 131X, to below flange portion 131Xa in first, in the circumferential interval and formed multiple
The first flow path 131Xc axially extended.First flow path 131Xc is connect with the entrance 401 of flow path 131d and the first pump chamber P1.
In addition, in the inside of body part 131X, to above flange portion 131Xa in first, in the circumferential interval and
Form multiple third flow path 131Xg axially extended.Third flow path 131Xg is connect with the entrance 404 of the second pump chamber P2.
In addition, in the inside of body part 131X, than the region provided with first flow path 131Xc closer to radial outside,
It is additionally provided with the second flow path 131Xd being made of the cylindric space axially extended.Second flow path 131Xd and the first pump chamber
The outlet 402 of P1 connects, and extends to the height of the outlet 402 of the first pump chamber P1.
In addition, in the bottom of chest portion 131, to flow path 131d radial outside extension and connect with first flow path 131Xc
It is circle-shaped to be formed uniformly.
Further, on the base plate 131Y of chest portion 131, the flow path 131e extended to radial outside is circle-shaped uniformly
It is formed.Flow path 131e is connect with the entrance 403 of the second pump chamber P2.
That is, these flow paths 131d and flow path 131e, with liquid from the lateral radial outside of central axis in 360 ° of omnidirections
The mode radially flowed is constituted.By the flow path of the first pump chamber P1 by flow path 131d, first flow path 131Xc, second
Road 131Xd is constituted.It is made of the flow path of the second pump chamber P2 flow path 131e, third flow path 131Xg and second flow path 131Xd.
In addition, the inside of container 130 be equipped with the round-trip with shaft member 120 and flexible the first bellows 141 and
Second bellows 142.These first bellowss 141 and the second bellows 142 are vertically arranged.First bellows
141 upper end side is fixed on the upper end side extroversion flange portion 122a of the cylindrical portion 122 of shaft member 120, the first bellows 141
Lower end side is fixed in the first of chest portion 131 on flange portion 131Xa.In addition, the upper end side of the second bellows 142 is fixed on
In the first of chest portion 131 on flange portion 131Xa, the lower end side of the second bellows 142 is fixed on the cylindrical portion of shaft member 120
On 122 lower end side extroversion flange portion 122b.Then, the first pump chamber is formed around the space of the outer peripheral surface of the first bellows 141
P1, the space around the outer peripheral surface of the second bellows 142 form the second pump chamber P2.
In addition, the inside of container 130 is additionally provided with third bellows 151 with the round-trip of shaft member 120 and flexible
And the 4th bellows 152.The upper end side of third bellows 151 is fixed on the top of chest portion 131, under third bellows 151
End side is fixed in shaft member 120.The opening portion 131a being arranged in chest portion 131 is occluded as a result,.4th bellows 152
Upper end side is fixed in second be arranged in chest portion 131 on flange portion 131Xb, and the lower end side of the 4th bellows 152 is fixed
In on the interconnecting piece 123 of shaft member 120.Then, the hollow portion inside the shaft body portion 121 of shaft member 120 is formed by first
Space K1, the periphery surface side of third bellows 151 and inner peripheral surface side of the 4th bellows 152 etc. be formed by second space K2,
The periphery surface side of the inner peripheral surface side of first bellows 141 and the second bellows 142 and cylindrical portion 122 is formed by third space K3
Connection.These first spaces K1, second space K2 and the formed space-closed of third space K3.In the present embodiment, by them
It is formed by enclosure space and maintains vacuum state, have heat insulating function.
Further, 4 check-valves 160 are equipped in the inside of container 130 (according to installation site, to be suitably referred to as first and stop
Return valve 160A, second check-valve 160B, third check-valves 160C and the 4th check-valves 160D).In addition, first check-valve 160A and
Second check-valve 160B is configured at the opposite side (Vertical Square of linear actuator 110 across the first pump chamber P1 and the second pump chamber P2
To downside).Then, third check-valves 160C and the 4th check-valves 160D are configured at than first check-valve 160A and second check-valve
160B is closer on the upside of vertical direction.
In addition, first check-valve 160A and third check-valves 160C are set on the flow path by the first pump chamber P1.This
One check-valves 160A and third check-valves 160C undertakes the liquid countercurrent for preventing flowing by the pump function of the first pump chamber P1
Effect.More specifically, first check-valve 160A is arranged in the upstream side of the first pump chamber P1, third check-valves is set in downstream side
160C.More specifically, first check-valve 160A is set on the flow path 131d formed on the bottom of chest portion 131.In addition, third
Check-valves 160C is set in second be arranged in chest portion 131 on the flow path formed near flange portion 131Xb.Specifically
Ground is set to the top of the first pump chamber P1.The top of pump chamber be in the region to play a role as pump chamber vertical direction center on
Side, or gas present in the first pump chamber P1 is discharged and the position of the first pump chamber P1 can be full of by liquid.
Then, second check-valve 160B and the 4th check-valves 160D is set on the flow path by the second pump chamber P2.This
Two check-valves 160B and the 4th check-valves 160D undertake the liquid countercurrent for preventing flowing by the pump function of the second pump chamber P2
Effect.More specifically, second check-valve 160B is arranged in the upstream side of the second pump chamber P2, the 4th check-valves is set in downstream side
160D.More specifically, second check-valve 160B is set on the flow path 131e formed on the base plate 131Y of chest portion 131.This
Outside, the 4th check-valves 160D is set in the first of chest portion 131 on the flow path formed near flange portion 131Xa.Tool
Body, it is set to the top of the second pump chamber P2.The top of pump chamber is vertical direction center in the region to play a role as pump chamber
Upside, or gas present in the second pump chamber P2 is discharged and the position of the second pump chamber P2 can be full of by liquid.It should
The outlet of third flow path 131Xg is arranged in fluid from the identical position of height that third check-valves 160C flows out.
<action specification of liquid-supplying system entirety>
The movement of liquid-supplying system entirety is illustrated.According to linear actuator 110, when shaft member 120 declines, the
One bellows 141 is shunk, and the second bellows 142 extends.At this point, the fluid pressure due to the first pump chamber P1 reduces, the first non-return
Valve 160A is opened, and third check-valves 160C is closed.It is transported as a result, by suction line 310 from the outside of liquid-supplying system 10
Liquid (reference arrow S10) passes through first check-valve 160A (reference arrow S11) out of suction inlet 131b sucking container 130.So
Afterwards, the first flow path 131Xc inside body part 131X that the liquid for having passed through first check-valve 160A passes through chest portion 131, to
First pump chamber P1 is transported.Further, since the fluid pressure of the second pump chamber P2 increases, second check-valve 160B is closed, the 4th non-return
Valve 160D is opened.The liquid in the second pump chamber P2 passes through the 4th check-valves 160D (reference arrow T12) as a result, to third flow path
131Xg, second flow path 131Xd are transported.Later, liquid is sent out pipe 320 to liquid-supplying system 10 by sending out mouth 131c
It sends out outside.
Then, according to linear actuator 110, when shaft member 120 rises, the first bellows 141 extends, the second bellows
142 shrink.At this point, the fluid pressure due to the first pump chamber P1 increases, first check-valve 160A is closed, and third check-valves 160C is beaten
It opens.The liquid in the first pump chamber P1 passes through third check-valves 160C (reference arrow T11) as a result, to the inside of body part 131X
Second flow path 131Xd is transported.Later, liquid is sent out pipe 320 and is sent to the outside of liquid-supplying system 10 by sending out mouth 131c
Out.Further, since the fluid pressure of the second pump chamber P2 reduces, second check-valve 160B is opened, and the 4th check-valves 160D is closed.By
This, is sucked from the external liquid (reference arrow S10) transported of liquid-supplying system 10 from suction inlet 131b by suction line 310
In container 130, second check-valve 160B (reference arrow S12) is passed through.It then passes through the liquid of second check-valve 160B is to
Two pump chamber P2 are transported.
As described above, can when shaft member 120 declines and when rising in the liquid-supplying system 10 of the present embodiment
Make liquid from 310 effluent of suction line to send out 320 side of pipe.Moreover, being able to suppress so-called pulsation.
Herein, super-low liquid is claimed by the first pump chamber P1 to the flow path that mouth 131c flows is sent out from suction inlet 131b
For first flow path, super-low liquid is known as the to the flow path that mouth 131c flows is sent out by the second pump chamber P2 from suction inlet 131b
Two flow paths.First flow path, as described above in clearly show that as, be from suction inlet 131b enter very low temperature flow along arrow
It after the flowing of the head direction S11, is flowed along the direction arrow T11, to the flow path for sending out mouth 131c flowing.In addition, second flow path be from
The super-low liquid that suction inlet 131b enters flows after the flowing of the direction arrow S12 to the direction arrow T12 and the direction arrow T13
It is dynamic, to the flow path for sending out mouth 131c flowing.
In the present embodiment, the height (reference arrow of the position of downside is gone in first flow path on the upside of vertical direction
T11) identical as the height (reference arrow T13) of position of downside is gone in second flow path on the upside of vertical direction.
The flowing for summarizing fluid when liquid-supplying system 10 drives is as follows.When shaft member 120 declines, first in first flow path
The upstream side liquid of pump chamber P1 flows, and downstream side liquid does not flow.In addition, in second flow path the second pump chamber P2 downstream side liquid
Flowing, upstream side liquid do not flow.It is on the other side, when shaft member 120 rises, the downstream side of the first pump chamber P1 in first flow path
Fluid flowing, upstream side liquid do not flow.In addition, the upstream side liquid of the second pump chamber P2 flows in second flow path, downstream effluent
Body does not flow.
<exhaust pipe>
Referring to Fig.1~Fig. 3, the exhaust pipe having to the liquid-supplying system of the present embodiment are illustrated.Fig. 3 is signal
Property indicates the figure of the AA section of Fig. 1, Fig. 2.
As shown in figure 3, equidistantly configuring exhaust pipe 602, connection second in circumferentially spaced in the radial outside of the second pump chamber P2
The third flow path 131Xg of the outlet 404 of pump chamber P2, connect the first pump chamber P1 entrance 401 first flow path 131Xc and be used for portion
The bolt 603 connected between part.
Exhaust pipe 602 is as shown in Figure 1 and Figure 2, the sky near the check-valves 160C that the outlet 402 of the first pump chamber P1 is arranged
Between have the first opening portion 601, in container 130 on the upside of vertical direction to downside extend, reach send out mouth 131c.Further
Ground, exhaust pipe 602 are set to the inside for sending out pipe 320, as shown in Figure 1, extending to than the first opening portion by sending out mouth 131c
Second opening portion 604 of 601 higher positions.As a result, by the gas of the near exit in the flow path of the first pump chamber P1, pass through row
Tracheae 602 is expelled to than the external higher position in the first opening portion 601.Exhaust pipe 602 is in the outside of liquid-supplying system 10
Also it can connect exhaust gear.The gas that thereby, it is possible to be effectively discharged out in container 130.
<cooling of liquid-supplying system entirety>
When the liquid-supplying system 10 of the present embodiment is used in the circulation of the super-low liquids such as liquid nitrogen, liquid helium, need by
Liquid-supplying system 10 under normal temperature environment is cooled to the temperature with working fluid i.e. cryogenic liquid with degree before operation.At this
In embodiment, it is cooling that the identical liquid of the cryogenic liquid to circulate when running with system is used for system.Alternatively, it is also possible to being to be
The liquid that the liquid for uniting cooling circulates when running from system is different.
System is cooling by flowing into cryogenic liquid from suction line 310, in structure member, that is, cabinet of liquid-supplying system 10
Heat exchange is carried out between portion 131 etc. and cryogenic liquid, the temperature of structure member is gradually reduced and carries out.In the present embodiment, by
Suction inlet 131b is equipped in the bottom of container 100 and sends out mouth 131c, and the cryogenic liquid flowed into cooling step is according to first
Second pump chamber P2, then the sequence of the first pump chamber P1 is gradually full of in system, and the water level of cryogenic liquid rises.It is upper with water level
It rises, the structure member for carrying out heat exchange with cooling cryogenic liquid increases, cooling to carry out from the lower to upper part of system.
<the advantages of liquid-supplying system of the present embodiment>
In the liquid-supplying system 10 of the present embodiment, carry out as described above for the circulation for cryogenic liquid
When cooling before work, in the initial stage of cooling step, cryogenic liquid is evaporated in container, the gas of generation rests in container
Top, become gas-liquid mixture phase.In the present embodiment, gas is since the space near the outlet 402 of the first pump chamber P1
Accumulate, if gas flow increases, gas may also can accumulate in the first pump chamber P1, the second pump chamber P2.If it does, even if from suction line
310 flow into cryogenic liquids and cooling system, the inflow of cryogenic liquid are hindered by the presence of gas, the cryogenic liquid in container
Water level becomes difficult to rise.It is cooling by the system for flowing into cryogenic liquid, warp is contacted with cryogenic liquid by system structure component
Heat exchange and carry out, therefore, if the rising of water level is obstructed, cooling can not be carried out effectively.
According to the liquid-supplying system 10 of the present embodiment, the gas accumulated in container can be expelled to by exhaust pipe 602
It is external.Moreover, be able to suppress in cooling step initial stage gas accumulation on the top of container, cooling cryogenic liquid is to appearance
Inflow in device becomes difficult to be obstructed.Therefore, water level rising of the cryogenic liquid in container becomes difficult to be obstructed, Low Temperature Liquid
The heat exchange of body and system structure component more efficiently carries out.Moreover, can be higher by the system cooling for flowing into cryogenic liquid
Effect ground carries out.Thereby, it is possible to shorten to carry out needed for cooling step to make the liquid-supplying system under normal temperature environment work
The working hour of the time wanted, the setting operation, upkeep operation that are able to suppress system increase.Furthermore it is possible to inhibit low in cooling step
The consumption of geothermal liquid.
(other)
In the present embodiment, it is set near the outlet 402 of the first pump chamber P1 with the first opening portion 601 of exhaust pipe 602
Space for be illustrated, but the opening portion of exhaust pipe can be suitably set according to the structure of liquid-supplying system.Exhaust pipe
Opening portion preferably by being open in the flow path of pump chamber in the highest position of vertical direction or the position near it.Pass through
It is arranged to such structure, when the water level in container rises, the remaining gas of container internal upper part can be reliably discharged, this
Outside, the liquid being able to suppress in container flows into exhaust pipe.Further, since exhaust pipe configuration is in the inside of discharge pipe 320, in order to make
The gas for flowing into exhaust pipe does not liquefy inside exhaust pipe, is preferably provided to be difficult to by circulation discharge pipe 320 inside exhaust pipe
Liquid temperature influence heat insulation structural.In addition, the present invention, which is suitable for flow path, is exported to downstream side along Vertical Square from pump chamber
It is obtained into the liquid-supplying system of the structure for the shape that downside extends and then extends on the upside of the lateral vertical direction in downstream above-mentioned
Effect.In the present embodiment, an example as the flow path for exporting to downside the shape extended, then extend to upside from pump chamber,
Example goes out the discharge pipe 320 that the submitting mouth 131c for the liquid being arranged with container bottom is connect, there is shown sets in the inside of discharge pipe
Set the example of exhaust pipe.But it exports from pump chamber to downside and extends, then the flow path of the shape to upside extension is without being limited thereto.Example
Such as, have in the liquid-supplying system for the structure that container internal flow path is turned back by U-shaped, the present invention can also be applied.
In the present embodiment, by the present invention be suitable for around bellows outer peripheral surface pump chamber vertically on
Under (bellows telescopic direction) arranged in series two bellowspump liquid-supplying system for be illustrated, but the present invention
Liquid-supplying system applicatory is without being limited thereto.The present invention usually can be applicable in sucking send out liquid pump, be suitable for liquid from
Has the container bottoms discharge of pump chamber, being directed in the liquid-supplying system than the structure of the bottom surface position Geng Gao can obtain very
Good effect.In the liquid-supplying system of such structure, it is piped using U-shaped and liquid is discharged to external container, therefore,
If container internal gas accumulates, it is difficult to be expelled to outside.By being applicable in the present invention, the gas that can will accumulate inside container
Easily it is discharged to outside.
In the present embodiment, among the inside of vacuum tank 200, using make system ontology 100, suction line 310 and send out
The outside of pipe 320 has the structure of heat insulating function as vacuum state.In addition, in the present embodiment, using making the first space
K1, second space K2 and third space K3 are formed by the structure that enclosure space has heat insulating function as vacuum state.And
And these spaces can also be made and flowing through super-low liquid the liquid flowed in circulation stream temperature maintain it is low
Temperature.
Claims (4)
1. a kind of liquid-supplying system characterized by comprising
Container, inside include pump chamber, and are equipped with the suction inlet of liquid and send out mouth；
Pipe is sent out, by the liquid being discharged from the submitting mouth to exterior guiding；
Flow path, from the suction inlet by the pump chamber, also, the liquid is from the pump chamber towards the submittings mouth and to vertical
The downward side flowing of histogram；
First opening portion is configured in the flow path；
Second opening portion is arranged than first opening portion closer to the downstream side in the flow path；And
Exhaust pipe is connect with first opening portion and second opening portion,
Wherein, second opening portion is configured than first opening portion closer to vertical direction upside.
2. liquid-supplying system according to claim 1, which is characterized in that second opening portion is set to the submitting
In pipe.
3. a kind of liquid-supplying system, which is characterized in that
Include:
Shaft member vertically moves back and forth in the container；And
First bellows and the second bellows, are vertically arranged, also, with the round-trip of the shaft member and
It is flexible,
The pump chamber includes:
Space around the outer peripheral surface of first bellows is formed by the first pump chamber；With
Space around the outer circumference end of second bellows is formed by the second pump chamber,
The flow path includes:
First flow path, liquid send output flow described in by first pump chamber from the suction inlet；And
Second flow path, liquid send output flow described in by second pump chamber from the suction inlet,
Wherein, the exhaust pipe is set at least one of the first flow path and the second flow path.
4. liquid-supplying system according to claim 3, which is characterized in that
First pump chamber is arranged than second pump chamber closer to vertical direction upside,
Outlet of first opening portion than first pump chamber is arranged closer to vertical direction upside.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017019040 | 2017-02-03 | ||
| JP2017-019040 | 2017-02-03 | ||
| PCT/JP2018/003632 WO2018143420A1 (en) | 2017-02-03 | 2018-02-02 | Liquid supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110177944A true CN110177944A (en) | 2019-08-27 |
Family
ID=63040771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880006946.5A Pending CN110177944A (en) | 2017-02-03 | 2018-02-02 | Liquid-supplying system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20200032785A1 (en) |
| EP (1) | EP3578820A1 (en) |
| JP (1) | JPWO2018143420A1 (en) |
| KR (1) | KR20190098228A (en) |
| CN (1) | CN110177944A (en) |
| RU (1) | RU2019122417A (en) |
| WO (1) | WO2018143420A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021003639A1 (en) * | 2021-07-14 | 2023-01-19 | Hydac Technology Gmbh | conveyor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064732A (en) * | 1990-12-21 | 1992-09-23 | 赖蒙德·安德列斯股份及两合有限公司 | The batching atomizing pump of output liquid, low goo and pasty material |
| EP1156217A1 (en) * | 1999-11-29 | 2001-11-21 | Nippon Pillar Packing Co., Ltd. | Fluid device with bellows |
| CN2777241Y (en) * | 2004-01-27 | 2006-05-03 | 株式会社易威奇 | Coupled reciprocating movement diaphragm pump with linkage axle |
| JP2006207410A (en) * | 2005-01-26 | 2006-08-10 | Nippon Pillar Packing Co Ltd | Bellows pump |
| CN102325999A (en) * | 2009-02-24 | 2012-01-18 | 日本皮拉工业株式会社 | Bellows pump |
| CN103388577A (en) * | 2012-05-09 | 2013-11-13 | 日本皮拉工业株式会社 | Volume pump for liquid |
| US20140054318A1 (en) * | 2011-03-15 | 2014-02-27 | Eagle Industry Co., Ltd. | Liquid supply system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3962716B2 (en) * | 2003-10-10 | 2007-08-22 | 日本ピラー工業株式会社 | Fluid device having bellows and method for discharging residual air in fluid device |
| JP5602595B2 (en) * | 2010-11-17 | 2014-10-08 | 日本ピラー工業株式会社 | Volumetric pump for liquid |
| KR101885017B1 (en) | 2014-07-10 | 2018-08-02 | 이글 고오교 가부시키가이샤 | Liquid supply system |
-
2018
- 2018-02-02 RU RU2019122417A patent/RU2019122417A/en not_active Application Discontinuation
- 2018-02-02 CN CN201880006946.5A patent/CN110177944A/en active Pending
- 2018-02-02 JP JP2018566133A patent/JPWO2018143420A1/en active Pending
- 2018-02-02 WO PCT/JP2018/003632 patent/WO2018143420A1/en unknown
- 2018-02-02 EP EP18748795.4A patent/EP3578820A1/en not_active Withdrawn
- 2018-02-02 KR KR1020197021572A patent/KR20190098228A/en active IP Right Grant
- 2018-02-02 US US16/482,394 patent/US20200032785A1/en not_active Abandoned
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064732A (en) * | 1990-12-21 | 1992-09-23 | 赖蒙德·安德列斯股份及两合有限公司 | The batching atomizing pump of output liquid, low goo and pasty material |
| EP1156217A1 (en) * | 1999-11-29 | 2001-11-21 | Nippon Pillar Packing Co., Ltd. | Fluid device with bellows |
| CN2777241Y (en) * | 2004-01-27 | 2006-05-03 | 株式会社易威奇 | Coupled reciprocating movement diaphragm pump with linkage axle |
| JP2006207410A (en) * | 2005-01-26 | 2006-08-10 | Nippon Pillar Packing Co Ltd | Bellows pump |
| CN102325999A (en) * | 2009-02-24 | 2012-01-18 | 日本皮拉工业株式会社 | Bellows pump |
| US20140054318A1 (en) * | 2011-03-15 | 2014-02-27 | Eagle Industry Co., Ltd. | Liquid supply system |
| CN103388577A (en) * | 2012-05-09 | 2013-11-13 | 日本皮拉工业株式会社 | Volume pump for liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| US20200032785A1 (en) | 2020-01-30 |
| JPWO2018143420A1 (en) | 2019-11-21 |
| RU2019122417A (en) | 2021-03-03 |
| EP3578820A1 (en) | 2019-12-11 |
| RU2019122417A3 (en) | 2021-03-03 |
| KR20190098228A (en) | 2019-08-21 |
| WO2018143420A1 (en) | 2018-08-09 |
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Application publication date: 20190827 |