CN108843531A - For conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media - Google Patents
For conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media Download PDFInfo
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- CN108843531A CN108843531A CN201811021107.9A CN201811021107A CN108843531A CN 108843531 A CN108843531 A CN 108843531A CN 201811021107 A CN201811021107 A CN 201811021107A CN 108843531 A CN108843531 A CN 108843531A
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- plunger
- liquid
- pump
- combination valve
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- 239000007788 liquid Substances 0.000 title claims abstract description 136
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 43
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 42
- 239000012530 fluid Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 59
- 239000012071 phase Substances 0.000 description 17
- 238000002347 injection Methods 0.000 description 13
- 239000007924 injection Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 239000003921 oil Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 239000000945 filler Substances 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 5
- 238000010079 rubber tapping Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000037361 pathway Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241001046947 Ectropis obliqua Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241001347978 Major minor Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
-
- 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
-
- 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
- F04B2015/0818—Carbon dioxide
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media, including：The pump housing, the pump housing is interior to be equipped with the plunger channel being connected and combination valve passage；Plunger is movably arranged in plunger channel；Combination valve is located in combination valve passage, and wherein the lower part of combination valve passage is arranged in the liquid feed valve of combination valve, and the top of combination valve passage is arranged in the liquid valve of combination valve；Plunger channel is horizontally set in the pump housing, combination valve passage is obliquely installed from top to bottom and is located at the top of plunger channel, liquid feed valve and liquid valve are located on same center line, combination valve channel centerline and plunger channel center line are antarafacial setting, and it combines and offers a notch in the side wall surface of the lower end of valve passage, which is connected to plunger channel.The hydraulic end of plunger pump can not only effectively reduce the Iinvalid volume of plunger pump, and avoid the generation of air-lock problem, greatly improve the working efficiency of plunger pump.
Description
Technical field
The present invention relates to plunger pump technique fields, more particularly to one kind for conveying liquid carbon dioxide and other gassiness
The hydraulic end of plunger pump of medium.
Background technique
Plunger pump is that the common power convey to liquid carbon dioxide, liquid nitrogen, liquefied gas etc. containing gas medium is set
It is standby, for example, the oil field displacement of reservoir oil is handled up in technique or production using the essence of each animals and plants of carbon dioxide abstraction, require pair
Liquid carbon dioxide is conveyed, wherein handling up in technique in the oil field displacement of reservoir oil, by liquid carbon dioxide physical characteristic and fluid injection state
The influence of the particularity of carbon dioxide DP technology must have the requirement that can overcome gasification to the equipment of input.
Wherein, the oil field displacement of reservoir oil handle up technique be by reciprocating plunger pump be added mouth canned motor pump liquid carbon dioxide root
According to underground different pressure rating carry out injection reach handle up, oil displacement efficiency.It is generally used for Jie of storing liquid carbon dioxide
The pressure in matter source is 2.4-2.6Mpa, the entrance of plunger pump is entered after canned motor pump is pressurized 0.5Mpa, because plunger pump is conveying
Liquid plant, it is unable to air inlet in itself, once air inlet plunger pump with regard to gas lock fever not work done, loses conveying capacity, institute
Conveyed in the liquid state with plunger pump to be ensured, into plunger pump entrance when carbon dioxide should be liquid, in practical operation, generally
It is to be conveyed on the critical-temperature line of gas-liquid, but this process plunger pump is difficult to work in full liquid, because of column
The inlet pressure of plug pump is completed by canned motor pump pressure-raising 0.5Mpa, when gas source pressure inside the tank drops to 2.3Mpa, liquid
Even if carbon dioxide pressurization 0.5Mpa is still in gasification, and plunger pump can not convey gaseous carbon dioxide, due to
The conveying characteristic requirement of liquid carbon dioxide is too narrow, so the efficiency of plunger pump is very low in actual condition, gas source waste is very big,
It is be easy to cause gas lock, causes production efficiency lower.
In order to solve this technical problem, application No. is in CN98204169.1 (Authorization Notice No. CN2348096Y)
State's utility model patent discloses《A kind of liquid carbon dioxide injection device》, by liquid carbon dioxide injection pump and mating stream
Cheng Zucheng, injection pump includes liquid feed valve and tapping valve, wherein the axis of corresponding liquid feed valve and tapping valve at 90 degree, forms ＂ L ＂
Shape pump head, and feed liquor valve chamber high-order bit is equipped with air relief cock and valve rod, as discovery has gas lock phenomenon that can pass through in injection process
The air relief cock, valve rod are deflated.The utility model optimizes injection pump fluid end structure, reduces pump chamber to a certain extent
In dead volume, improve dischargeable capacity utilization rate, solve air-lock problem.
But in actual use, the liquid carbon dioxide injection device is there is also there is certain deficiency, firstly,
The injection pump of this L-type structure is three way type fluid end, and liquid feed valve is the operation of horizontal form, and tapping valve is standing form fortune
Row, since liquid feed valve, the installation requirement of tapping valve and stress need, the position that is connected between valve port and plunger cavity needs to stay
There are enough spaces, thus inevitably makes that still there is biggish Iinvalid volume, injection pump in the pump chamber of the injection pump
Working efficiency it is still not high；Secondly, the gas-liquid separation effect of the injection pump of this structure is unobvious, that is to say, that in liquid feed valve
When unlatching, the gas-liquid exchange process of carbon dioxide is not rapid enough, since carbon dioxide gas cannot be discharged in first time separation,
So still thering is a large amount of gas to be trapped in plunger cavity, so that the air-lock problem of plunger pump is still frequently sent out when liquid feed valve is closed
It is raw；In addition, the liquid carbon dioxide injection device of this structure, needs continually to discharge carbon dioxide gas in the environment,
The working environment that this results in operator is very severe, and does not also meet present environmental requirement.
Therefore existing hydraulic end of plunger pump also requires further improvement.
Summary of the invention
The technical problem to be solved by the invention for the present situation of prior art is to provide a kind of structure novels, Neng Gouyou
Effect reduces Iinvalid volume in pump chamber, improves the plunger pump for being used to convey liquid carbon dioxide and other gassiness media of working efficiency
Fluid end.
The present invention solves technical solution used by above-mentioned technical problem：One kind for convey liquid carbon dioxide and its
Its hydraulic end of plunger pump containing gas medium, including：The pump housing, the pump housing is interior to be equipped with the plunger channel being connected and combination valve passage；Column
Plug, is movably arranged in plunger channel；Combination valve is located in combination valve passage, and wherein the liquid feed valve setting of combination valve is being combined
The top of combination valve passage is arranged in the lower part of valve passage, the liquid valve of combination valve；The plunger channel is horizontally set on the pump housing
It is interior, it is described combination valve passage be obliquely installed from top to bottom and be located at the plunger channel top, the liquid feed valve and it is described go out
Liquid valve is located on same center line, and the combination valve channel centerline and the plunger channel center line are antarafacial setting, and
A notch is offered in the side wall surface of the lower end of the combination valve passage, which is connected to the plunger channel.
Preferably, the combination valve channel centerline is mutually perpendicular to the plunger channel center line, the notch position
It is combined in valve passage on the side wall surface of relatively low position in described.Such structure setting so that liquid feed valve open when,
Conveying can quickly carry out gas-liquid exchange containing gas medium, and wherein gas can be risen rapidly by the notch and enter liquid feed valve
Carry out gas-liquid separation.
Preferably, the recyclable device for recycling gaseous medium is additionally provided on the outside of the pump housing, on the pump housing
The feed liquor runner being obliquely installed from top to bottom is offered, the upper end of the feed liquor runner is connected to the recyclable device, the feed liquor
The lower end of runner is connected to the combination valve passage, and the center line of the feed liquor runner is in the combination valve channel centerline
Angle setting, and form a bevel angle α.The feed liquor runner is obliquely installed from top to bottom, convenient for containing the gas phase in gas medium
It is separated with liquid phase, and carries out rapidly increasing to the recyclable device.
Preferably, the liquid valve and liquid feed valve share a valve seat, and the both ends up and down of valve seat are located at, it is described
The middle position of the lower part of valve seat has the admission chamber being connected with the valve port of the liquid feed valve, also has along institute on the valve seat
Several inlet openings of the periphery progress of admission chamber circumferentially are stated, offer annular groove in the outside wall surface of the valve seat, it is described
The bottom surface of inlet opening from the annular groove, which tilts down, to be penetrated through to the admission chamber, and the feed liquor runner passes through the ring
Connected in star is connected to the inlet opening.Such structure setting can enable the gas in the admission chamber of valve seat to run through
The inlet opening being obliquely installed enters in annular groove, and then goes through in the feed pathway of the pump housing, reaches containing in gas medium
The quick separating of gas-liquid two-phase.
Preferably, the center line of the inlet opening and the angled setting of combination valve channel centerline, and form one
A oblique angle β, oblique angle β are identical as bevel angle α.Such structure setting, so that flow resistance is more when rising containing gas in gas medium
Small, the separating effect of gas-liquid two-phase is more preferable.
Preferably, the center line of the center line of one of inlet opening and the feed liquor runner is located at same straight line
On.Such structure setting, further reduce containing gas in gas medium rise when flow resistance, improve gas-liquid two-phase
Separating effect.
Preferably, the recyclable device includes recover, the top of the bottom of the recover and the incoming-stream manifold
It is connected, the recover is built-in with spherical float trap, and the top of the recover is equipped with gas outlet, is equipped with only at the gas outlet
Valve is returned, the gas outlet is connected to external agency storage tank through the check-valves.Such structure setting can make in gassiness medium
Gas phase quickly enter in feed liquor header, be then collected in the recover above feed liquor header, and be delivered to external reservoir
In, wherein the breakdown of check-valves can be gas phase CO2Or storage tank is drawn back into containing the gas in gas medium.
Preferably, the liquid valve and liquid feed valve include spool, the first elastic component and valve bonnet, the valve bonnet is fixed on
On the valve seat, there is feed liquor valve port and liquid valve mouth on the valve seat, spool cooperation is on corresponding valve port, and described the
One elastic component is connected between spool and the inner wall of the valve bonnet, in the position of the correspondence notch on the valve bonnet of the liquid feed valve
Place offers side opening, and the side opening is connected to the plunger channel and the admission chamber.Such structure setting, so that containing gas medium
In conveying, it directly can be flow to plunger channel from admission chamber by the side opening, reduce medium from admission chamber to plunger channel
Between flow path improve the working efficiency of plunger pump so that the Iinvalid volume in pump chamber reduces.
Preferably, multiple plunger channels, combination valve passage, plunger and combination valve are equipped in the pump housing, wherein each column
The arranged direction for filling in channel and each combination valve passage is consistent, and correspondingly, the pump housing is equipped with each combination valve passage of multiple connections
Feed liquor runner；The outer side seal of the pump housing is welded with incoming-stream manifold, and the incoming-stream manifold is connected with the multiple feed liquor runner
It is logical, and the both ends of incoming-stream manifold are respectively equipped with logical flange and blind flange.Such structure setting can make multiple plungers same
When act, improve total feed flow of plunger pump.
Preferably, the preceding dead-centre position of the plunger channel is provided with chock plug component, the chock plug component passes through preposition
Flange is fixed on the pump housing, and the chock plug component includes chock plug, movable cylinder and the second elastic component, and the activity cylinder is embedding
It is located in the chock plug and is coaxially disposed with the plunger, second elastic component top is held in the chock plug and the movable cylinder
Between.Since chock plug component has buffer protection effect to plunger, so the end of plunger end face corresponding with plunger channel
Between preset clearance can greatly reduce so that the Iinvalid volume in plunger channel significantly reduces, improve plunger pump
Working efficiency.
Compared with the prior art, the advantages of the present invention are as follows：The plunger channel center line of hydraulic end of plunger pump of the invention
It is antarafacial setting with combination valve channel centerline, that is to say, that the plunger in the plunger channel can avoid the combination
The extending direction of valve passage, and plunger channel be by combine valve passage side wall surface notch directly with combine valve passage phase
Intercommunicated, the conveying for not only meeting fluid media (medium) requires and the installation requirement of combination valve, but also need not be in the valve of liquid feed valve
There are the biggish flowing spaces for flow of media between mouth and plunger channel, this effectively reduces the invalid appearance of plunger pump
Product, greatly improves the working efficiency of plunger pump；Furthermore combination valve passage is to be obliquely installed from top to bottom, correspondingly, combination
Plane where the feed liquor valve port of the liquid feed valve of valve is also an inclined surface, and opening and closing for the spool of such liquid feed valve is inclined at one
Carried out on inclined-plane, which ensure that liquid liquid carbon dioxide or it is other containing gas medium in dynamic transport with prestissimo exchange into
The exchange of promoting the circulation of qi liquid, wherein gas phase can rise rapidly in the inner cavity without being trapped in plunger channel, avoid air-lock problem
Occur, to further improve the working efficiency of plunger pump.
Detailed description of the invention
Fig. 1 is in the embodiment of the present invention for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media
Structure chart；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 is B-B direction cross-sectional view in Fig. 2, wherein combination valve is not shown；
Fig. 4 is in the embodiment of the present invention for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media
Structure chart, wherein combination valve and plunger is not shown；
Fig. 5 is in the embodiment of the present invention for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media
The structure chart of combination valve；
Fig. 6 is in the embodiment of the present invention for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media
Feed liquor header and recover matching chart.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
It is a kind of for conveying the hydraulic end of plunger pump packet of liquid carbon dioxide and other gassiness media as shown in FIG. 1 to FIG. 2
The pump housing 10, plunger 13 and combination valve 20 are included, the plunger channel 11 being connected and combination valve passage 12, column are equipped in middle pump body 10
Plug 13 is movably arranged in plunger channel 11, and combination valve 20 is located in combination valve passage 12, combination valve 20 include liquid feed valve 201 and
The lower part of combination valve passage 12 is arranged in liquid valve 202, the liquid feed valve 201 of combination valve 20, and the liquid valve 202 of combination valve 20 is arranged
On the top of combination valve passage 12, wherein liquid feed valve 201 and liquid valve 202 are located at same center line, specifically, liquid feed valve 201
Valve port and the valve port of liquid valve 202 be located on same center line, in the present embodiment, plunger channel 11 is horizontally set on the pump housing
In 10, combination valve passage 12 be obliquely installed from top to bottom and be located at plunger channel 11 top, combination 12 center line of valve passage with
11 center line of plunger channel be antarafacial setting, and combine valve passage 12 lower end side wall surface on offer a notch 120, should
Notch 120 is connected to plunger channel 11, and specifically, plunger channel 11 is located at plunger channel in the position that is connected with notch 120
On the side wall surface on 11 top, i.e. the upside that is located at the cross section of plunger channel 11 of notch 120.In the present embodiment, it is located at
Plunger 13 in plunger channel 11 can avoid the extending direction of combination valve passage 12, and plunger channel 11 is to pass through combination valve
The notch 120 of the side wall surface in channel 12 directly with combine valve passage 12 be interconnected, not only meet the conveying of fluid media (medium)
It is required that and combination valve 20 installation requirement, and need not there are biggish between the valve port and plunger channel 11 of liquid feed valve 201
For the flowing space of flow of media, this effectively reduces the Iinvalid volume of plunger pump, greatly improves the work of plunger pump
Efficiency；Furthermore combination valve passage 12 is to be obliquely installed from top to bottom, correspondingly, the feed liquor valve port of the liquid feed valve 201 of combination valve 20
The plane at place is also an inclined surface, and opening and closing for the spool 22a of such liquid feed valve 201 is carried out on an inclined surface, is protected
It has demonstrate,proved liquid liquid carbon dioxide or other exchanged containing gas medium in dynamic transport with prestissimo carries out gas-liquid exchange, wherein
Gas phase can rise rapidly in the inner cavity without being trapped in plunger channel 11, and liquid phase then remains in the inner cavity of plunger channel 11
In, the generation of air-lock problem is avoided, to further improve the working efficiency of plunger pump.Certainly, the column in the present embodiment
Filling in pump hydraulic end can also include preceding guide sleeve 14, spring base, self-styled spring 3, main packing seal 17, rear pressure ring 16, secondary filler
Sealing 18, letter body 15, oil pump are for recycle oil assembly 1, regulating nut 19, upper press ring 25, upper flange 26, chock plug component 80 and preceding
Flange 84 is set, specifically, plunger channel 11 is provided with two section filler of major-minor, rear pressure ring 16, preceding guide sleeve 14, spring base and self-styled
Spring 3 is the automatic compensation after adjusting filler abrasion, to guarantee what plunger 13 moved back and forth in plunger channel 11
Sealing performance in the process, wherein letter body is mounted on the step of plunger channel 11 of the pump housing 10, close equipped with secondary filler in letter body
Envelope 18, oil pump provides recyclable lubricating oil by oil return pipe 4 and lubricating oil swap tank 2 for recycle oil assembly 1, to plunger 13
The major and minor filler of periphery carries out circulation lubrication, it is ensured that the coefficient of friction of filler is minimum to reduce power consumption, and regulating nut 19 is used
Carry out sealing lubricating oil and places its leakage；Combination valve 20 is fitted into can be by upper press ring 25 and upper flange 26 to it in combination valve passage 12
It is fixed；Chock plug component 80 and preposition flange 84 can be sealed the front end of plunger channel 11.
Together referring to Fig. 5, the liquid feed valve 201 and liquid valve 202 of combination valve 20 share same valve seat 21, liquid valve 202 and
Liquid feed valve 201 is located at the both ends up and down of valve seat 21, wherein there is liquid valve mouth on the upper surface of valve seat 21, valve seat 21
There is feed liquor valve port on lower end surface, the middle position on the top of valve seat 21 also has what is be connected with liquid valve mouth to go out sap cavity 211,
The middle position of the lower part of valve seat 21 has the admission chamber 210 being connected with the valve port of liquid feed valve 201, specifically, liquid valve 202
And liquid feed valve 201 also includes spool 22a, 22b, the first elastic component 23a, 23b and valve bonnet 24a, 24b, valve bonnet 24a, 24b is fixed
On valve seat 21, spool 22a, 22b are set to valve bonnet 24a, the inside of 24b and cooperate corresponding valve port (i.e. feed liquor valve port or
Liquid valve mouth) on, the first elastic component 23a, 23b are connected to spool 22a, 22b and valve bonnet 24a, between the inner wall of 24b, with control
The open and close of the corresponding valve port of liquid feed valve 201 and liquid valve 202, the first elastic component 23a, 23b can be spring, specifically
Ground, side opening 240 is offered on the valve bonnet 24a of liquid feed valve 201 at the position of corresponding notch 120, and side opening 240 is connected to plunger channel
11 with admission chamber 210.It, can be by the valve bonnet 24a of the liquid feed valve 201 containing gas medium when being conveyed by the plunger pump
Side opening 240 directly flow to plunger channel 11 from admission chamber 210, shorten medium from admission chamber 210 to plunger channel 11
Flow path improve the working efficiency of plunger pump so that the Iinvalid volume in pump chamber reduces.
In order to enable plunger pump is carrying out conveying when containing gas medium, gas-liquid two-phase can be separated more quickly, kept away
The generation for exempting from gas lock phenomenon is combined 12 center line of valve passage and is mutually perpendicular to 11 center line of plunger channel referring to Fig. 3, and lacks
Mouthfuls 120 are located in combination valve passage 12 on the side wall surface of relatively low position, wherein combination 12 center line of valve passage and crossing column
The vertical plane shape of plug 11 center line of channel has angle v, and wherein angle may range from 10 °~60 °, wherein it is preferred that 20 °；
Further, the outside of the pump housing 10 is additionally provided with the recyclable device for recycling gaseous medium, offer on the pump housing 10 from upper and
Under the feed liquor runner 100 that is obliquely installed, the upper end of feed liquor runner 100 is connected to recyclable device, the lower end connection group of feed liquor runner 100
Close valve passage 12, wherein the center line of feed liquor runner 100 with combine 12 center line of valve passage formation one bevel angle α, be detailed in Fig. 3 and
Fig. 4；Wherein feed liquor runner 100 is obliquely installed from top to bottom, after containing the gas phase and liquid phase separation in gas medium, quickly on
It is raised in recyclable device；Still further, on valve seat 21 also have along admission chamber 210 periphery carry out circumferentially it is several into
Fluid apertures 30 offers annular groove 40 in the outside wall surface of valve seat 21, and the bottom surface of inlet opening 30 from annular groove 40, which tilts down, to be passed through
Admission chamber 210 is passed to, and feed liquor runner 100 is connected to inlet opening 30 by annular groove 40, wherein the center line of inlet opening 30
An oblique angle β is formed with 12 center line of valve passage is combined, oblique angle β is identical with bevel angle α, and wherein oblique angle β is acute angle, and size can be with
It is selected according to the tilt angle of combination valve passage 12, i.e. oblique angle β is adapted with angle v size, to guarantee that gas can be fast
Speed rises in recover 60, and specifically, oblique angle β ranges preferably from 20 °~80 °, more preferable 70 °.Such structure setting, can
So that the gas in the admission chamber 210 of valve seat 21, which can run through the inlet opening 30 being obliquely installed, enters annular groove 40
In, and then go through in the feed pathway of the pump housing 10, reach the quick separating containing the gas-liquid two-phase in gas medium.Further
Ground improves the separating effect of gas-liquid two-phase, in this reality to reduce the flow resistance containing gas in gas medium when rising
It applies in example, the center line of the center line and feed liquor runner 100 of one of inlet opening 30 is located along the same line, that is, wherein one
A inlet opening 30 and feed liquor runner 100 are to be coaxially disposed and be interconnected, and certainly, inlet opening 30 and feed liquor runner 100 can also be with
Mutual dislocation setting.In addition, the quantity of inlet opening 30 can be selected according to the flow velocity of medium fluid, in the present embodiment,
In order to easy to process, inlet opening 30 may be set to even numbers, also have the row of connection plunger channel 11 with sap cavity 211 out on valve seat 21
Fluid apertures 31, drainage hole 31 can be arranged with 30 misaligned interval of inlet opening.
Referring to Fig. 1 and Fig. 3, in order to improve total feed flow of plunger pump, settable multiple plungers are logical in the pump housing 10
Road 11, combination valve passage 12, plunger 13 and combination valve 20, specifically can be arranged different number according to the cylinder quantity of plunger pump
Plunger channel 11, wherein the arranged direction of each plunger channel 11 and each combination valve passage 12 is consistent, and correspondingly, the pump housing 10 is set
There is the feed liquor runner 100 of each combination valve passage 12 of multiple connections, it is contemplated that multiple connection each groups are additionally provided on the pump housing 10
The liquid outlet channel 101 of valve passage 12 is closed, liquid outlet channel 101 is used to the fluid media (medium) being discharged from liquid valve 202 being transported to the external world；
The outside of the pump housing 10 is equipped with incoming-stream manifold 50, and incoming-stream manifold 50 is connected with multiple feed liquor runners 100, and incoming-stream manifold 50
Both ends are respectively equipped with logical flange 51 and blind flange 52, and logical flange 51 and blind flange 52 can be interchangeable according to installation requirements,
Middle feed pathway is connected to the lower part of incoming-stream manifold 50, the center line of the feed liquor runner 100 of the pump housing 10 and excessively incoming-stream manifold 50
In an angle, in order to contain gas medium during transportation, liquid actively enters feed liquor runner 100 to the horizontal plane shape of axis,
Gas is risen to automatically in incoming-stream manifold 50, and specifically, the pump housing 10 is substantially in cuboid, and has a front bevel, feed liquor
Manifold 50 can also use method with sealing welding on the front bevel of the pump housing 10 between certain incoming-stream manifold 50 and the pump housing 10
Orchid is fixed；Referring to fig. 2 and Fig. 6, the recyclable device for recycling gas phase media includes recover 60, the bottom of recover 60 with into
The top of liquid pipe remittance 50 is connected, and recover 60 is built-in with the spherical float trap 70 for pressure stabilizing, and the top of recover 60 is equipped with
Gas outlet 61, check-valves 71 is equipped at the gas outlet 61, and gas outlet 61 is connected to external agency storage tank (not shown) through check-valves 71.
Specifically, recover 60 is cylindrical tube, is vertically disposed on incoming-stream manifold 50, float trap 70 can be in cylindrical tube body
360 ° of rotations float up and down, wherein plunger pump, can be according to containing the gas after gas medium gasification in 13 chamber of plunger in action process
It is secondary to be rapidly introduced into incoming-stream manifold 50 by admission chamber 210, inlet opening 30, feed liquor runner 100, then proceed to rise and can
It is hoarded in recover 60 by the peripheral clearance of float trap 70 in recover 60, wherein the breakdown of check-valves 71 can be gas
Phase medium, which is recovered in external agency storage tank, reaches zero emission requirement.
Referring to fig. 2, the preceding dead-centre position of plunger channel 11 is provided with chock plug component 80, and chock plug component 80 passes through preposition flange
84 are fixed on the pump housing 10, and chock plug component 80 includes that chock plug 81, movable cylinder 82 and the second elastic component 83, movable cylinder 82 are embedded
It being coaxially disposed in chock plug 81 and with plunger 13, the second elastic component 83 top is held between chock plug 81 and movable cylinder 82, specifically,
Movable cylinder 82 is a rigid member, and to matching, the second elastic component 83 can be with for the end size of the size of the rigid member and plunger 13
For rubber spring, since chock plug component 80 has buffer protection effect to plunger 13, so the end of plunger 13 and plunger channel
Preset clearance between 11 corresponding end face can reduce to 2mm, so that the Iinvalid volume in plunger channel 11 is obvious
It reduces, improves the working efficiency of plunger pump.
Working principle of the present invention is as follows：Liquid feed valve 201 is opened when plunger 13 moves backward, the gassiness in incoming-stream manifold 50
The inlet opening 30 of medium successively the feed liquor runner 100 through the pump housing 10, liquid feed valve 201 carried out into the inner cavity of plunger channel 11 into
Liquid, wherein when 201 breakdown of liquid feed valve, gas-liquid can be exchanged moment, and the gas phase containing gas medium, which rises rapidly, leaves plunger channel 11
Inner cavity enter in high-order recyclable device, liquid phase is full of 11 cavity of plunger channel；When plunger 13 travels forward into
Liquid valve 201 is closed, and plunger 13 holds cavity pressure and increases, and tapping valve is opened, and liquid is discharged out of exhaust chamber, and reciprocation cycle carries out.
11 center line of plunger channel due to hydraulic end of plunger pump with combine valve passage 12 center line for antarafacial setting, so plunger pump
Iinvalid volume in plunger channel 11 greatly reduces, and improves work efficiency, and combines valve passage 12 and tilt from top to bottom and set
It sets, correspondingly, the plane where the feed liquor valve port of the liquid feed valve 201 of combination valve 20 is also an inclined surface, such liquid feed valve 201
Opening and closing for spool 22a is carried out on an inclined surface, which ensure that liquid liquid carbon dioxide or other gas mediums that contain are dynamic
It is exchanged in state conveying with prestissimo and carries out gas-liquid exchange, wherein gas phase can rise very rapidly up in high-order recover 60
Without being trapped in the inner cavity of plunger channel 11, liquid phase then enters in the inner cavity of plunger channel 11, it is ensured that plunger pump is complete
It works under liquid status (or close to full liquid status), avoids gas lock phenomenon from occurring, further increase the working efficiency of plunger pump.It is another
Aspect, the center line of the feed liquor runner 100 on the pump housing 10 and the center line of the inlet opening 30 on valve seat 21 are logical with combination valve
The angled setting of 12 center line of road, and two angles are identical (i.e. oblique angle β is identical as bevel angle α), and with the inclination of combining valve passage 12
(i.e. angle v) is adapted angle, and this structure setting shortens circulation path of the gas in uphill process, reduces flowing resistance
Power ensure that gas can rapidly increase in recover 60, improve gas-liquid separation efficiency.
Claims (10)
1. it is a kind of for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media, including：
The pump housing (10), the pump housing (10) is interior to be equipped with the plunger channel (11) being connected and combination valve passage (12)；
Plunger (13) is movably arranged in plunger channel (11)；
Combination valve (20) is located in combination valve passage (12), and wherein liquid feed valve (201) setting of combination valve (20) is logical in combination valve
The lower part in road (12), liquid valve (202) setting of combination valve (20) is on the top of combination valve passage (12)；
It is characterized in that：The plunger channel (11) is horizontally set in the pump housing (10), the combination valve passage (12) oneself up to
Under be obliquely installed and be located at the top of the plunger channel (11), the liquid feed valve (201) and the liquid valve (202) are located at same
On one center line, combination valve passage (12) center line and the plunger channel (11) center line are that antarafacial is arranged, and institute
It states and offers a notch (120) in the side wall surface of the lower end of combination valve passage (12), the notch (120) and the plunger channel
(11) it is connected to.
2. it is according to claim 1 for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media,
It is characterized in that：Combination valve passage (12) center line is mutually perpendicular to the plunger channel (11) center line, the notch
(120) it is located in combination valve passage (12) on the side wall surface of relatively low position.
3. it is according to claim 1 or 2 for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media,
It is characterized in that：The recyclable device for recycling gaseous medium, the pump housing (10) are additionally provided on the outside of the pump housing (10)
On offer the feed liquor runner (100) being obliquely installed from top to bottom, the upper end of the feed liquor runner (100) is connected to the recycling and fills
It sets, the lower end of the feed liquor runner (100) is connected to the combination valve passage (12), and the center of the feed liquor runner (100)
Line forms a bevel angle α with valve passage (12) center line that combines.
4. it is according to claim 3 for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media,
It is characterized in that：The liquid valve (202) and liquid feed valve (201) share a valve seat (21), and are located at the upper of valve seat (21)
Lower both ends, the middle position of the lower part of the valve seat (21) have the admission chamber being connected with the valve port of the liquid feed valve (201)
(210), also there are several inlet openings along the progress of the periphery of the admission chamber (210) circumferentially on the valve seat (21)
(30), it is offered annular groove (40) in the outside wall surface of the valve seat (21), the inlet opening (30) is from the annular groove
(40) bottom surface, which tilts down, to be penetrated through to the admission chamber (210), and the feed liquor runner (100) passes through the annular groove
(40) it is connected to the inlet opening (30).
5. it is according to claim 4 for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media,
It is characterized in that：The center line of the inlet opening (30) forms an oblique angle β, oblique angle β with valve passage (12) center line that combines
It is identical as bevel angle α.
6. it is according to claim 5 for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media,
It is characterized in that：The center line of one of inlet opening (30) is located along the same line with the feed liquor runner (100).
7. it is according to claim 3 for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media,
It is characterized in that：The recyclable device includes recover (60), bottom and the incoming-stream manifold (50) of the recover (60)
Top is connected, and the recover (60) is built-in with spherical float trap (70), and the top of the recover (60) is equipped with gas outlet
(61), check-valves (71) are equipped at the gas outlet (61), the gas outlet (61) is connected to external agency through the check-valves (71)
Storage tank.
8. it is according to claim 4 for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media,
It is characterized in that：The liquid valve (202) and liquid feed valve (201) also include spool (22a, 22b), the first elastic component (23a,
23b) and valve bonnet (24a, 24b), the valve bonnet (24a, 24b) are fixed on the valve seat (21), have on the valve seat (21)
Feed liquor valve port and liquid valve mouth, the spool (22a, 22b) cooperation on corresponding valve port, first elastic component (23a,
It 23b) is connected between the inner wall of spool (22a, 22b) and the valve bonnet (24a, 24b)；
Side opening (240), institute are offered at the position of the correspondence notch (120) on the valve bonnet (24a) of the liquid feed valve (201)
It states side opening (240) and is connected to the plunger channel (11) and the admission chamber (210).
9. it is according to claim 7 for conveying the hydraulic end of plunger pump of liquid carbon dioxide and other gassiness media,
It is characterized in that：Multiple plunger channels (11), combination valve passage (12), plunger (13) and combination valve are equipped in the pump housing (10)
(20), wherein the arranged direction of each plunger channel (11) and respectively combination valve passage (12) is consistent, correspondingly, the pump housing (10) is set
There is the feed liquor runner (100) of each combination valve passage (12) of multiple connections；
The outer side seal of the pump housing (10) is welded with incoming-stream manifold (50), the incoming-stream manifold (50) and the multiple feed liquor stream
Road (100) is connected, and the logical flange (51) and blind flange (52) that the both ends of incoming-stream manifold (50) are respectively equipped with.
10. according to claim 1 or 2 for conveying the plunger pump fluid power of liquid carbon dioxide and other gassiness media
End, it is characterised in that：The preceding dead-centre position of the plunger channel (11) is provided with chock plug component (80), the chock plug component (80)
It is fixed on the pump housing (10) by preposition flange (84)；
The chock plug component (80) includes chock plug (81), movable cylinder (82) and the second elastic component (83), the activity cylinder
(82) it is embedded in the chock plug (81) and is coaxially disposed with the plunger (13), the second elastic component (83) top is held described
Between chock plug (81) and the movable cylinder (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021107.9A CN108843531B (en) | 2018-09-03 | 2018-09-03 | Plunger pump fluid end for conveying liquid carbon dioxide and other gas-containing media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021107.9A CN108843531B (en) | 2018-09-03 | 2018-09-03 | Plunger pump fluid end for conveying liquid carbon dioxide and other gas-containing media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108843531A true CN108843531A (en) | 2018-11-20 |
| CN108843531B CN108843531B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811021107.9A Active CN108843531B (en) | 2018-09-03 | 2018-09-03 | Plunger pump fluid end for conveying liquid carbon dioxide and other gas-containing media |
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| CN (1) | CN108843531B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854476A (en) * | 2019-03-28 | 2019-06-07 | 宁波合力机泵股份有限公司 | A kind of dynamic air inlet liquid conveying device |
| CN111678037A (en) * | 2020-07-01 | 2020-09-18 | 优普能源技术有限公司 | Low-temperature single-tank full-vacuum gas-liquid separator |
| US20220235751A1 (en) * | 2019-11-18 | 2022-07-28 | Kerr Machine Co. | Fluid routing plug |
| CN115234464A (en) * | 2022-07-27 | 2022-10-25 | 四川宏华电气有限责任公司 | Carbon dioxide fracturing release device |
| US11859601B2 (en) | 2019-11-18 | 2024-01-02 | Kerr Machine Co. | Fluid routing plug |
| US11920587B2 (en) | 2019-11-18 | 2024-03-05 | Kerr Machine Co. | Fluid routing plug |
| US12000257B2 (en) | 2022-10-17 | 2024-06-04 | Kerr Machine Co. | Fluid end |
| US12012955B2 (en) | 2019-11-18 | 2024-06-18 | Kerr Machine Co. | Fluid end |
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| US12000257B2 (en) | 2022-10-17 | 2024-06-04 | Kerr Machine Co. | Fluid end |
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