CN106137324A - A kind of liquid feed device, method and system - Google Patents
A kind of liquid feed device, method and system Download PDFInfo
- Publication number
- CN106137324A CN106137324A CN201610754237.8A CN201610754237A CN106137324A CN 106137324 A CN106137324 A CN 106137324A CN 201610754237 A CN201610754237 A CN 201610754237A CN 106137324 A CN106137324 A CN 106137324A
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- displacement pump
- liquid
- plunger displacement
- liquid tank
- reserving
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3203—Fluid jet cutting instruments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
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- Details Of Reciprocating Pumps (AREA)
Abstract
The invention provides a kind of liquid feed device, method and system, this liquid feed device includes at least two plunger displacement pump and the reserving liquid tank being connected with each plunger displacement pump；Supply opening and the fluid infusion mouth being connected with outside liquid source of supply is included on each plunger displacement pump；When plunger displacement pump is in extended state, fluid infusion mouth is opened and supply opening is closed, and is received the liquid of liquid source of supply output by fluid infusion mouth；When plunger displacement pump is in compressive state, fluid infusion mouth is closed and supply opening is opened, by the liquid of storage inside by supply opening output to reserving liquid tank；And the end time synchronised of the extended state of the end time of the compressive state of arbitrary plunger displacement pump and another plunger displacement pump.Due to can be while plunger displacement pump obtains liquid, by another plunger displacement pump output liquid, therefore, this programme can continue output liquid to reserving liquid tank.
Description
Technical field
The present invention relates to field of medical technology, particularly to a kind of liquid feed device, method and system.
Background technology
Water cutter, i.e. with water as cutter, is a kind of High Pressure Water Jet Cutting Technology, various materials can be carried out cold cut and cut.For
Ensure the smooth execution of high pressure waterjet operation, need the lasting output liquid to water cutter.
At present, the liquid stored can be exported to water cutter in reserving liquid tank, and along with the output of liquid in reserving liquid tank, permissible
Feed flow is carried out by a plunger displacement pump.
Obtain liquid from external source owing to plunger displacement pump can circulate to be in and the liquid obtained is exported to reserving liquid tank both shapes
State, therefore existing implementation can not continue output liquid to reserving liquid tank.
Summary of the invention
The invention provides a kind of liquid feed device, method and system, it is possible to continue output liquid to reserving liquid tank.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
First aspect, the invention provides a kind of liquid feed device, including:
At least two plunger displacement pump, reserving liquid tank；
Each described plunger displacement pump is connected with described reserving liquid tank；
Include on each described plunger displacement pump: the fluid infusion mouth that is connected with outside liquid source of supply, supply opening；
When described plunger displacement pump is in extended state, described fluid infusion mouth is opened and described supply opening is closed, by described fluid infusion
Mouth receives the liquid of described liquid source of supply output；When described plunger displacement pump is in compressive state, described fluid infusion mouth is closed and described
Supply opening is opened, by the liquid of storage inside by described supply opening output to described reserving liquid tank；
When arbitrary plunger displacement pump in described at least two plunger displacement pump is in compressive state, there is another plunger displacement pump and be in stretching
State, and the end time of the extended state of another plunger displacement pump of end time and this of the compressive state of this arbitrary plunger displacement pump is identical
Step.
Further, each described plunger displacement pump includes: housing, removable piston structure and cam；
The inner surface of described housing contacts with the outer surface of described removable piston structure, and described housing and described can
There is one between mobile plunger structure and seal cavity；Described removable piston structure is connected with described cam；
During described cam rotation, at shaft core position and described removable piston structure and the described cam of described cam
Position, junction between distance when being in minima, described removable piston structure is in the state of being completely stretched, described close
Envelope cavity has maximum volume；Shaft core position and described removable piston structure and the junction of described cam at described cam
When distance between position is in maximum, described removable piston structure is in complete compressive state, and described sealing cavity has
There is minimum volume.
Further, the connected mode of described removable piston structure and described cam includes: by protruding guide rail and recessed
The connected mode that groove slideway is connected.
Further, the fluid infusion mouth and the supply opening that described plunger displacement pump include are positioned on the housing of this plunger displacement pump.
Further, described reserving liquid tank includes infusion port；
The liquid of storage inside is exported to outside water cutter by described reserving liquid tank by described infusion port.
Further, described reserving liquid tank includes accumulator；
In described accumulator, storage has compressible gas, and the quality of described compressible gas is fixed；
The bottom of described accumulator connects hollow pipe, and one end of described hollow pipe is positioned at inside described reserving liquid tank and deposits
The liquid level bottom of tank body；
When current pressure within described reserving liquid tank is more than a upper pressure, in described reserving liquid tank, the partially liq of storage leads to
Cross described hollow pipe to enter in described accumulator, to compress described compressible gas, thus reduce described current pressure；Described
When current pressure within reserving liquid tank is less than a upper pressure, the partially liq in described accumulator is entered by described hollow pipe
Entering in described reserving liquid tank, described compressible gas expands, thus increases described current pressure.
Second aspect, the invention provides a kind of feed liquid method, including:
Each plunger displacement pump at least two plunger displacement pump is connected with reserving liquid tank；
For plunger displacement pump each described, described plunger displacement pump from compressive state become extended state time, by described plunger displacement pump
On fluid infusion mouth open, by described plunger displacement pump supply opening close, and by described fluid infusion mouth reception outside liquid supply
The liquid of source output；Described plunger displacement pump from extended state become compressive state time, by described plunger displacement pump fluid infusion mouth close, will
Supply opening on described plunger displacement pump is opened, and by the liquid of storage inside by described supply opening output to described reserving liquid tank；
By the end time of the compressive state of the arbitrary plunger displacement pump in described at least two plunger displacement pump and another plunger displacement pump
The end time of extended state synchronizes.
Further, the method also includes: utilize the internal pressure in described reserving liquid tank, by storage in described reserving liquid tank
Liquid is by the water cutter of the infusion port output on described reserving liquid tank to outside.
Further, the method also includes: arranging storage in accumulator, and described accumulator in described reserving liquid tank has matter
The compressible gas that amount is fixing；Connect hollow pipe in the bottom of described accumulator, and one end of described hollow pipe is positioned at institute
State the liquid level bottom of reserving liquid tank storage inside liquid；When current pressure within described reserving liquid tank is more than a upper pressure, by institute
State the partially liq of storage in reserving liquid tank to be squeezed in described accumulator by described hollow pipe, to compress described compressible gas
Body, thus reduce described current pressure；When current pressure within described reserving liquid tank is less than a upper pressure, by described accumulator
In partially liq be squeezed in described reserving liquid tank by described hollow pipe so that described compressible gas expands, thus increase
Big described current pressure.
The third aspect, the invention provides a kind of liquid-supplying system, including:
Any of the above-described described liquid feed device, liquid source of supply, and water cutter；
Described liquid source of supply is connected with described liquid feed device；
The liquid of storage inside is exported to described water cutter by described liquid feed device.
The invention provides a kind of liquid feed device, method and system, this liquid feed device include at least two plunger displacement pump and with
The reserving liquid tank that each plunger displacement pump is connected；Include what supply opening and the liquid source of supply with outside were connected on each plunger displacement pump
Fluid infusion mouth；When plunger displacement pump is in extended state, fluid infusion mouth is opened and supply opening is closed, and receives liquid source of supply by fluid infusion mouth defeated
The liquid gone out；When plunger displacement pump is in compressive state, fluid infusion mouth is closed and supply opening is opened, and the liquid of storage inside is passed through feed flow
Mouth exports to reserving liquid tank；And the end of the extended state of the end time of the compressive state of arbitrary plunger displacement pump and another plunger displacement pump
Time synchronised.Due to can be while plunger displacement pump obtains liquid, by another plunger displacement pump output liquid, therefore, this
Invention can continue output liquid to reserving liquid tank.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
Fig. 1 is the schematic diagram of a kind of liquid feed device that one embodiment of the invention provides；
Fig. 2 is the schematic diagram of the another kind of liquid feed device that one embodiment of the invention provides；
Fig. 3 is the structural representation of a kind of plunger displacement pump that one embodiment of the invention provides；
Fig. 4 is a kind of removable piston structure that provides of one embodiment of the invention and the schematic diagram of attachment structure of cam；
Fig. 5 is the flow chart of a kind of feed liquid method that one embodiment of the invention provides；
Fig. 6 is the schematic diagram of a kind of liquid-supplying system that one embodiment of the invention provides.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, embodiments provide a kind of liquid feed device 10, may include that
At least two plunger displacement pump 101, reserving liquid tank 102；
Each described plunger displacement pump 101 is connected with described reserving liquid tank 102；
Include on each described plunger displacement pump 101: the fluid infusion mouth that is connected with outside liquid source of supply, supply opening；
When described plunger displacement pump 101 is in extended state, described fluid infusion mouth is opened and described supply opening is closed, by described benefit
Liquid mouth receives the liquid of described liquid source of supply output；When described plunger displacement pump 101 is in compressive state, described fluid infusion mouth close and
Described supply opening is opened, by the liquid of storage inside by described supply opening output to described reserving liquid tank 102；
When arbitrary plunger displacement pump in described at least two plunger displacement pump 101 is in compressive state, there is another plunger displacement pump and be in
Extended state, and the end time of the extended state of the end time of the compressive state of this arbitrary plunger displacement pump and this another plunger displacement pump
Synchronised.
Embodiments provide a kind of liquid feed device, be connected including at least two plunger displacement pump with each plunger displacement pump
Reserving liquid tank；Supply opening and the fluid infusion mouth being connected with outside liquid source of supply is included on each plunger displacement pump；At plunger displacement pump
When extended state, fluid infusion mouth is opened and supply opening is closed, and is received the liquid of liquid source of supply output by fluid infusion mouth；Plunger displacement pump
When being in compressive state, fluid infusion mouth is closed and supply opening is opened, and is exported to reserving liquid tank by supply opening by the liquid of storage inside
In；And the end time synchronised of the extended state of the end time of the compressive state of arbitrary plunger displacement pump and another plunger displacement pump.By
In can be while plunger displacement pump obtains liquid, by another plunger displacement pump output liquid, therefore, the present invention can be the most defeated
Go out liquid to reserving liquid tank.
In an embodiment of the invention, described at least two plunger displacement pump can be:
(1) even number plunger displacement pump.Wherein, for any two plunger displacement pump in this even number plunger displacement pump, there are two posts
The end time of the compressive state of the arbitrary plunger displacement pump in plug pump and the end time synchronised of the extended state of another plunger displacement pump.
That is, plunger displacement pump 1 is while carrying out feed flow, and plunger displacement pump 2 is carrying out fluid infusion, when plunger displacement pump 1 feed flow completes to start fluid infusion, and plunger displacement pump
2 complete fluid infusion starts feed flow.When there is at least one plunger displacement pump feed flow simultaneously, in the unit interval, this at least one plunger displacement pump is total
Liquid supply rate is equal to the liquid output amount of water cutter with reserving liquid tank.
(2) odd number plunger displacement pump.Wherein, this odd number plunger displacement pump exists the combination of least one set plunger displacement pump, and each group
Block pump combination and can include above-mentioned plunger displacement pump 1 and above-mentioned plunger displacement pump 2.Remove the combination of least one set plunger displacement pump, this odd number post
In plug pump, a remaining plunger displacement pump can be as standby plunger displacement pump, when arbitrary plunger displacement pump abnormal work, to substitute this exception
Plunger displacement pump normally works.
In an embodiment of the invention, as in figure 2 it is shown, in order to by plunger displacement pump so that reservoir is carried out feed flow,
So, each described plunger displacement pump 101 includes: housing 1011, removable piston structure 1012 and cam 1013；
The inner surface of described housing 1011 contacts with the outer surface of described removable piston structure 1012, and described housing
There is one between 1011 and described removable piston structure 1012 and seal cavity；Described removable piston structure 1012 and described
Cam 1013 is connected；
In described cam 1013 rotation process, at shaft core position and the described removable piston structure of described cam 1013
When distance between 1012 and the position, junction of described cam 1013 is in minima, at described removable piston structure 1012
In being completely stretched state, described sealing cavity has maximum volume；Removable with described at the shaft core position of described cam 1013
When distance between the position, junction of piston structure 1012 and described cam 1013 is in maximum, described removable plunger is tied
Structure 1012 is in complete compressive state, and described sealing cavity has minimum volume.
In detail, when removable piston structure is in extended state, the volume sealing cavity persistently increases, and by outside
The liquid that inputted by fluid infusion mouth of liquid source of supply store to this sealing cavity；Until removable piston structure has been in
During full extended state, sealing cavity volume maximum, liquid storage amount is most；Then, along with the rotation of cam, removable plunger knot
Structure is initially located in compressive state, and the volume sealing cavity persistently diminishes, and will seal the feeding liquid under pressure stored in cavity to liquid storage
In case；During until removable piston structure is in complete compressive state, seal cavity volume minimum, liquid storage amount minimum or nothing
Liquid storage amount；Then, along with the rotation of cam, removable piston structure is initially located in extended state, so circulates, to pass through
Plunger displacement pump carries out feed flow to reserving liquid tank.
Further, when a plunger displacement pump is in compressive state, another plunger displacement pump can be had to be in extended state, pass through
The synergy of these two plunger displacement pumps, to ensure that any instant all exists the plunger displacement pump of fluid infusion and the plunger displacement pump of feed flow, thus can
Reserving liquid tank is carried out uninterrupted feed flow by least two plunger displacement pump.
Additionally, for industrial plunger displacement pump, this industrial plunger displacement pump is typically in turbine type, and turbine structure
It is usually present lubricating oil.After liquid enters in this plunger displacement pump, the lubricating oil being easily stored in is polluted, the liquid after being contaminated
It is generally unsuitable for field of medical technology.And the plunger displacement pump that the present embodiment provides is by between housing and removable piston structure
Sealing cavity is to store liquid, and makes removable piston structure circulation be in compressive state and stretching shape by the rotation of cam
State, such that it is able to circulation obtains fluid infusion and exports fluid infusion, this liquid transmitting procedure no liquid pollution condition, therefore can be by this
Feed liquid way is applied to field of medical technology.
In an embodiment of the invention, as shown in Figure 3, it is provided that the structural representation of a kind of plunger displacement pump.In figure 3,
Described removable piston structure 1012 is connected with described housing 1011 and described cam 1013 respectively.Round dot shown in Fig. 3 can
Think the center of the rotary shaft of described cam 1013.Described housing 1011 and the central axis of described removable piston structure 1012
Coincide, and this central axis can be as shown in phantom in FIG..Additionally, the center of this central axis and this rotary shaft may be located at
On same level line.
In detail, during in fig. 3 it can be seen that described cam 1013 turns to this current location, described removable plunger
Structure 1012 is currently at the state of being completely stretched, and the space between described housing 1011 and described removable piston structure 1012 is
Seal cavity, and the current volume of this sealing cavity is maximum.
Furthermore, it is possible to above described housing 1011, A as shown in Figure 31Position, arranges fluid infusion mouth, and this benefit
Liquid mouth is connected with liquid source of supply；And can be at the left of described housing 1011, A as shown in Figure 32Position, if
Put supply opening, and this supply opening is connected with described reserving liquid tank 102.
In figure 3, at present this sealing cavity can store liquid, when shown cam 1013 starts to turn in current location
Time dynamic, described removable piston structure 1012 is initially located in compressive state, A1The fluid infusion mouth of position is closed and A2The confession of position
Liquid mouth is opened, and the liquid that will be sealed in cavity by this supply opening is exported to described reserving liquid tank 102.
In an embodiment of the invention, as shown in Figure 4, described removable piston structure 1012 and described cam 1013
Connected mode includes: the connected mode being connected with groove slideway by protruding guide rail.
In detail, when removable piston structure includes protruding guide rail, cam should include groove slideway, otherwise, removable post
When plug structure includes groove slideway, cam should include protruding guide rail.The connected mode being connected with groove slideway by protruding guide rail,
Can realize being connected removable piston structure with cam, such that it is able to make removable piston structure follow along with the rotation of cam
Ring is in extended state and compressive state.
In detail, described Fig. 4 can be removable piston structure 1012 and the vertical view of described cam 1013 described in Fig. 3
Figure.In the diagram, removable piston structure is connected with the protruding guide rail of cam by the groove slideway of self.
In an embodiment of the invention, the fluid infusion mouth and the supply opening that described plunger displacement pump 101 include are positioned at this plunger displacement pump
On the housing 1011 of 101.
In detail, seal cavity owing to existing between housing and removable piston structure, therefore plunger displacement pump is in extended state
Time, by the fluid infusion mouth on housing, the liquid that liquid source of supply exports can be stored to this sealing cavity；At plunger displacement pump
When compressive state, by the supply opening on housing, the liquid of storage in this sealing cavity can be exported to reserving liquid tank, with
Complete a fluid infusion and the feed flow circulation of plunger displacement pump.
In an embodiment of the invention, described reserving liquid tank 102 is connected with the supply opening on described housing 1011.
In an embodiment of the invention, described reserving liquid tank 102 includes infusion port；
The liquid of storage inside is exported to outside water cutter by described reserving liquid tank 102 by described infusion port.
In detail, when being in compressive state due to plunger displacement pump, the liquid of its storage inside can be pressed out to reserving liquid tank, this
One implementation can cause in reserving liquid tank and there is internal pressure, if this pressure can be 3Mpa.Additionally, at the work of this internal pressure
Under with, output liquid can be continued to water cutter by the infusion port included on reserving liquid tank.Export to the liquid of water cutter from water cutter cutter
During head ejection, it is generally of higher pressure and speed, such that it is able to utilize water cutter to perform corresponding cutting operation.
In the present embodiment, stablizing of reserving liquid tank internal pressure is of value to normally working of water cutter, such as this internal pressure
When stablizing, liquid spray volume and liquid spouting velocity at water jet blade can be stablized at steady state value, thus are beneficial to water cutter
Normal cutting operation.
By the synergy of two plunger displacement pumps to continue during reserving liquid tank carries out fluid infusion, the realization of continuous fluid infusion
Mode can make reserving liquid tank remain certain internal pressure, but fluid infusion operation is generally not capable of making this internal pressure be maintained solid
Definite value.
Therefore, for solving or alleviating this pressure instability stable condition, thus improve the stability of reserving liquid tank internal pressure, therefore
In an embodiment of the invention, described reserving liquid tank 102 includes accumulator 1021；
In described accumulator 1021, storage has compressible gas, and the quality of described compressible gas is fixed；
The bottom of described accumulator 1021 connects hollow pipe, and one end of described hollow pipe is positioned at described reserving liquid tank
The liquid level bottom of 102 storage inside liquid；
When current pressure within described reserving liquid tank 102 is more than a upper pressure, the part of storage in described reserving liquid tank 102
Liquid enters in described accumulator 1021 by described hollow pipe, to compress described compressible gas, thus reduces described working as
Front pressure；When current pressure within described reserving liquid tank 102 is less than a upper pressure, the partially liq in described accumulator 1021
Entering in described reserving liquid tank 102 by described hollow pipe, described compressible gas expands, thus increases described current pressure.
In an embodiment of the invention, described accumulator 1021 can be fixed on the top within described reserving liquid tank 102
Position.
In detail, when reserving liquid tank internal pressure instability, in order to eliminate or alleviate this pressure instability stable condition, permissible
One accumulator is set in reserving liquid tank.Wherein, in this accumulator, storage has the compressible gas of fixed mass, under this accumulator
Portion can connect a hollow pipe, and the end of this hollow pipe may be located in reserving liquid tank below liquid level.Such as, can be by
The end of this hollow tubing conductor is placed in the bottom position of reserving liquid tank.
When reserving liquid tank internal pressure becomes big, reserving liquid tank internal pressure is caused to be more than accumulator internal pressure, therefore by inciting somebody to action
Compressible gas in accumulator, in hollow pipe is compressed to accumulator, can be pressed by the partially liq in reserving liquid tank
Contracting, so that this compressed gas density increases, volume reduces, thus eliminates or alleviates this pressure big situation of change.Accordingly, storage is worked as
When liquid case internal pressure diminishes, reserving liquid tank internal pressure is caused to be less than accumulator internal pressure, therefore by by the portion in accumulator
Separatory body, in hollow pipe is compressed to reserving liquid tank, can make the compressible gas in accumulator expand, so that this compression
Gas density reduces, volume increases, thus eliminates or alleviate this pressure and diminish situation.
By this implementation, reserving liquid tank internal pressure can be made to be maintained in stability range, be of value to stable output
Liquid is to water cutter, thus ensures the normal work of water cutter.
In an embodiment of the invention, when water cutter is for medical field, liquid used in embodiment can be
Normal saline.
In an embodiment of the invention, when water cutter is for other field, liquid used in embodiment can be
Water, or, the fluid-mixing with water as medium.
As it is shown in figure 5, one embodiment of the invention provides a kind of feed liquid method, specifically may comprise steps of:
Step 201: each plunger displacement pump at least two plunger displacement pump is connected with reserving liquid tank.
Step 202: for plunger displacement pump each described, described plunger displacement pump from compressive state become extended state time, by institute
State the fluid infusion mouth on plunger displacement pump to open, the supply opening on described plunger displacement pump is closed, and by outside the reception of described fluid infusion mouth
The liquid of liquid source of supply output；Described plunger displacement pump from extended state become compressive state time, by the fluid infusion on described plunger displacement pump
Mouth is closed, and is opened by the supply opening on described plunger displacement pump, and the liquid of storage inside is the most described by the output of described supply opening
In reserving liquid tank.
Step 203: by end time of the compressive state of the arbitrary plunger displacement pump in described at least two plunger displacement pump and another
The end time of the extended state of plunger displacement pump synchronizes.
In an embodiment of the invention, this at least two plunger displacement pump can be two plunger displacement pumps, and these two plunger displacement pumps
Changed by the synchronous backward of compressive state and extended state, to continue to reserving liquid tank feed flow.
In an embodiment of the invention, this feed liquid method may further include: utilizes the inside in described reserving liquid tank
Pressure, by the liquid of storage in described reserving liquid tank by the infusion port output on described reserving liquid tank to outside water cutter.
In detail, when plunger displacement pump is in compressive state to be exported to reserving liquid tank by the liquid of storage inside, storage can be made
Liquid case produces pressure effect, such as 3Mpa, infusion port can be passed through by this pressure effect, the liquid in reserving liquid tank is exported extremely
Water cutter.
In an embodiment of the invention, this feed liquid method may further include: arranges accumulation of energy in described reserving liquid tank
In device, and described accumulator, storage has the compressible gas that quality is fixing；Hollow pipe is connected in the bottom of described accumulator, and
One end of described hollow pipe is positioned at the liquid level bottom of described reserving liquid tank storage inside liquid；Current pressure within described reserving liquid tank
When power is more than a upper pressure, the partially liq of storage in described reserving liquid tank is squeezed into described accumulation of energy by described hollow pipe
In device, to compress described compressible gas, thus reduce described current pressure；Current pressure within described reserving liquid tank is less than upper
During one pressure, the partially liq in described accumulator is squeezed in described reserving liquid tank by described hollow pipe, so that institute
State compressible gas to expand, thus increase described current pressure.
In detail, when reservoir internal pressure instability, by the compressible gas in accumulator is compressed or
Bring it about expansion, can eliminate or alleviate this pressure oscillation such that it is able to stablize output liquid to water cutter.Real by this
Existing mode, when stablizing output liquid to water cutter, at water jet blade, the liquid at eruption can have stable flow and flow velocity, from
And water cutter can be made to be in normal operating conditions.
As shown in Figure 6, one embodiment of the invention provides a kind of liquid-supplying system, including:
Liquid feed device 10 described above, liquid source of supply 30, and water cutter 40；
Described liquid source of supply 30 is connected with described liquid feed device 10；
The liquid of storage inside is exported to described water cutter 40 by described liquid feed device 10.
In detail, liquid feed device can include at least two plunger displacement pump and a reserving liquid tank, by the connection of each plunger displacement pump
Cooperation use, can persistently obtain fluid infusion at liquid source of supply, and persistently can export the fluid infusion obtained to reserving liquid tank.?
In reserving liquid tank under the effect of internal pressure, can persistently the liquid stabilising stored in reserving liquid tank be exported to water cutter.From water cutter cutter
The liquid that head ejects has high pressure and feature at a high speed, such that it is able to treat cutting part to carry out cutting operation.
In sum, each embodiment of the present invention at least has the advantages that
1, in the embodiment of the present invention, liquid feed device can include at least two plunger displacement pump and be connected with each plunger displacement pump
Reserving liquid tank；Supply opening and the fluid infusion mouth being connected with outside liquid source of supply is included on each plunger displacement pump；Plunger displacement pump is in
During extended state, fluid infusion mouth is opened and supply opening is closed, and is received the liquid of liquid source of supply output by fluid infusion mouth；At plunger displacement pump
When compressive state, fluid infusion mouth is closed and supply opening is opened, by the liquid of storage inside by supply opening output to reserving liquid tank；
And the end time synchronised of the extended state of the end time of the compressive state of arbitrary plunger displacement pump and another plunger displacement pump.Due to can
While obtaining liquid at a plunger displacement pump, by another plunger displacement pump output liquid, therefore, the present invention can persistently export liquid
Body is to reserving liquid tank.
2, in the embodiment of the present invention, plunger displacement pump passes through the sealing cavity between housing and removable piston structure to store liquid
Body, and make removable piston structure circulation be in compressive state and extended state, such that it is able to circulation obtains by the rotation of cam
Take fluid infusion and output fluid infusion, this liquid transmitting procedure no liquid pollution condition, therefore this feed liquid way can be applied to doctor
Treat technical field.
3, in the embodiment of the present invention, by arranging the accumulation of energy of a compressible gas comprising fixed mass in reserving liquid tank
Device, and according to different reserving liquid tank internal pressure change conditions, compressible gas is compressed or makes it expand, to disappear
Removing or alleviate the reserving liquid tank internal pressure change conditions occurred, this implementation can make reserving liquid tank internal pressure be maintained at surely
In the range of Ding, it be of value to stable output liquid to water cutter, thus ensure the normal work of water cutter.
It should be noted that in this article, the relational terms of such as first and second etc is used merely to an entity
Or operation separates with another entity or operating space, and not necessarily require or imply existence between these entities or operation
The relation of any this reality or order.And, term " includes ", " comprising " or its any other variant are intended to non-
Comprising of exclusiveness, so that include that the process of a series of key element, method, article or equipment not only include those key elements,
But also include other key elements being not expressly set out, or also include being consolidated by this process, method, article or equipment
Some key elements.In the case of there is no more restriction, statement the key element " including " and limiting, do not arrange
Except there is also other same factor in including the process of described key element, method, article or equipment.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be passed through
The hardware that programmed instruction is relevant completes, and aforesaid program can be stored in the storage medium of embodied on computer readable, this program
Upon execution, perform to include the step of said method embodiment；And aforesaid storage medium includes: ROM, RAM, magnetic disc or light
In the various medium that can store program code such as dish.
Last it should be understood that the foregoing is only presently preferred embodiments of the present invention, it is merely to illustrate the skill of the present invention
Art scheme, is not intended to limit protection scope of the present invention.All made within the spirit and principles in the present invention any amendment,
Equivalent, improvement etc., be all contained in protection scope of the present invention.
Claims (10)
1. a liquid feed device, it is characterised in that including:
At least two plunger displacement pump, reserving liquid tank；
Each described plunger displacement pump is connected with described reserving liquid tank；
Include on each described plunger displacement pump: the fluid infusion mouth that is connected with outside liquid source of supply, supply opening；
When described plunger displacement pump is in extended state, described fluid infusion mouth is opened and described supply opening is closed, and is connect by described fluid infusion mouth
Receive the liquid of described liquid source of supply output；When described plunger displacement pump is in compressive state, described fluid infusion mouth is closed and described feed flow
Mouth is opened, by the liquid of storage inside by described supply opening output to described reserving liquid tank；
When arbitrary plunger displacement pump in described at least two plunger displacement pump is in compressive state, there is another plunger displacement pump and be in stretching shape
State, and the end time of the extended state of another plunger displacement pump of end time and this of the compressive state of this arbitrary plunger displacement pump is identical
Step.
Liquid feed device the most according to claim 1, it is characterised in that
Each described plunger displacement pump includes: housing, removable piston structure and cam；
The inner surface of described housing contacts with the outer surface of described removable piston structure, and described housing and described removable
There is one between piston structure and seal cavity；Described removable piston structure is connected with described cam；
During described cam rotation, in shaft core position and described removable piston structure and the company of described cam of described cam
When distance between position, the place of connecing is in minima, described removable piston structure is in the state of being completely stretched, described annular seal space
Body has maximum volume；Shaft core position and described removable piston structure and the position, junction of described cam at described cam
Between distance when being in maximum, described removable piston structure is in complete compressive state, and described sealing cavity has
Small size.
Liquid feed device the most according to claim 2, it is characterised in that
Described removable piston structure includes with the connected mode of described cam: the company being connected with groove slideway by protruding guide rail
Connect mode.
Liquid feed device the most according to claim 2, it is characterised in that
The fluid infusion mouth included on described plunger displacement pump and supply opening are positioned on the housing of this plunger displacement pump.
Liquid feed device the most according to claim 1, it is characterised in that
Infusion port is included on described reserving liquid tank；
The liquid of storage inside is exported to outside water cutter by described reserving liquid tank by described infusion port.
6. according to described liquid feed device arbitrary in claim 1 to 5, it is characterised in that
Described reserving liquid tank includes accumulator；
In described accumulator, storage has compressible gas, and the quality of described compressible gas is fixed；
The bottom of described accumulator connects hollow pipe, and one end of described hollow pipe is positioned at described reserving liquid tank storage inside liquid
The liquid level bottom of body；
When current pressure within described reserving liquid tank is more than a upper pressure, in described reserving liquid tank, the partially liq of storage passes through institute
State hollow pipe to enter in described accumulator, to compress described compressible gas, thus reduce described current pressure；Described liquid storage
When current pressure within case is less than a upper pressure, the partially liq in described accumulator enters institute by described hollow pipe
Stating in reserving liquid tank, described compressible gas expands, thus increases described current pressure.
7. a feed liquid method, it is characterised in that including:
Each plunger displacement pump at least two plunger displacement pump is connected with reserving liquid tank；
For plunger displacement pump each described, described plunger displacement pump from compressive state become extended state time, by described plunger displacement pump
Fluid infusion mouth is opened, and is closed by the supply opening on described plunger displacement pump, and defeated by the liquid source of supply outside the reception of described fluid infusion mouth
The liquid gone out；Described plunger displacement pump from extended state become compressive state time, by described plunger displacement pump fluid infusion mouth close, by described
Supply opening on plunger displacement pump is opened, and by the liquid of storage inside by described supply opening output to described reserving liquid tank；
Stretching by the end time of the compressive state of the arbitrary plunger displacement pump in described at least two plunger displacement pump He another plunger displacement pump
The end time of state synchronizes.
Feed liquid method the most according to claim 7, it is characterised in that farther include:
Utilize the internal pressure in described reserving liquid tank, by the liquid of storage in described reserving liquid tank by the transfusion on described reserving liquid tank
Mouth output is to outside water cutter.
9. according to the feed liquid method described in claim 7 or 8, it is characterised in that farther include:
Storage in accumulator, and described accumulator is set in described reserving liquid tank and has the compressible gas that quality is fixed；
Connect hollow pipe in the bottom of described accumulator, and one end of described hollow pipe is positioned at described reserving liquid tank storage inside
The liquid level bottom of liquid；
When current pressure within described reserving liquid tank is more than a upper pressure, the partially liq of storage in described reserving liquid tank is passed through
Described hollow pipe is squeezed in described accumulator, to compress described compressible gas, thus reduces described current pressure；Described
When current pressure within reserving liquid tank is less than a upper pressure, by the partially liq in described accumulator by described hollow pipe
It is squeezed in described reserving liquid tank, so that described compressible gas expands, thus increases described current pressure.
10. a liquid-supplying system, it is characterised in that including:
Liquid feed device as described in arbitrary in claim 1 to 8, liquid source of supply, and water cutter；
Described liquid source of supply is connected with described liquid feed device；
The liquid of storage inside is exported to described water cutter by described liquid feed device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754237.8A CN106137324A (en) | 2016-08-30 | 2016-08-30 | A kind of liquid feed device, method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754237.8A CN106137324A (en) | 2016-08-30 | 2016-08-30 | A kind of liquid feed device, method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106137324A true CN106137324A (en) | 2016-11-23 |
Family
ID=57344606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610754237.8A Pending CN106137324A (en) | 2016-08-30 | 2016-08-30 | A kind of liquid feed device, method and system |
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| Country | Link |
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| CN (1) | CN106137324A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109212246A (en) * | 2017-06-30 | 2019-01-15 | 深圳迈瑞生物医疗电子股份有限公司 | Liquid feed device, sample analyser build pressure device and feed liquid method |
| CN109366761A (en) * | 2018-12-24 | 2019-02-22 | 佛山市永盛达机械有限公司 | A kind of water-jet cutting machine booster |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212246A (en) * | 2017-06-30 | 2019-01-15 | 深圳迈瑞生物医疗电子股份有限公司 | Liquid feed device, sample analyser build pressure device and feed liquid method |
| CN109212246B (en) * | 2017-06-30 | 2022-06-24 | 深圳迈瑞生物医疗电子股份有限公司 | Liquid supply device, sample analyzer, pressure building device and liquid supply method |
| CN109366761A (en) * | 2018-12-24 | 2019-02-22 | 佛山市永盛达机械有限公司 | A kind of water-jet cutting machine booster |
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Application publication date: 20161123 |