CN106194719A - A kind of screw pump of low viscosity high pressure - Google Patents
A kind of screw pump of low viscosity high pressure Download PDFInfo
- Publication number
- CN106194719A CN106194719A CN201610742546.3A CN201610742546A CN106194719A CN 106194719 A CN106194719 A CN 106194719A CN 201610742546 A CN201610742546 A CN 201610742546A CN 106194719 A CN106194719 A CN 106194719A
- Authority
- CN
- China
- Prior art keywords
- screw
- pump
- screw rod
- actively
- high pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/001—Pumps for particular liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses the screw pump of a kind of low viscosity high pressure, including the pump housing, the active screw rod being arranged in the pump housing, bearing, sealing structure, be additionally provided with driven screw in the pump housing, bearing, sealing structure are set on active screw rod;Pump housing internal shaping has pump chamber, and axially arranged in pump chamber have lining, and actively screw rod, driven screw are arranged in lining;Lining is provided with mating holes;The sidewall engagement of the sidewall of driven screw and actively screw rod is adaptive, and its two ends and the top inner wall of pump chamber, bottom interior wall connect, and the inwall of its two ends and pump chamber connects;Actively the unsettled pump chamber in the bottom of screw rod bottom interior wall is arranged.The present invention can provide a kind of simple in construction, volume is little, install compact convenience, durable wear-resistant, pressure are high, it is little to let out in flow, and can effectively strengthen engagement screws and pay the wear-resisting durability of lining inner wall surface, reduce power energy consumption and improve the screw pump of low viscosity high pressure in service life.
Description
Technical field
The present invention relates to screw pump field, particularly relate to the screw pump of a kind of low viscosity high pressure.
Background technology
Spatial volume change that what screw pump was dependent on that the pump housing formed with screw rod engage and mobile carry liquid or be allowed to
The drum pump of supercharging, screw pump is divided into single-screw (single screw) pump, Quimby pump and screw pump etc. by screw rod number.Its operation principle is when electricity
When motivation drives pump shaft to rotate, screw rod is on the one hand around the axis rotation of itself, and on the other hand it rolls along sleeve inner surface again, in
Being the sealing chamber forming pump, its screw rod each rotation, the liquid in annular seal space pushes ahead a pitch, along with the company of screw rod
Continuous rotation, liquid spiral fashion presses to another annular seal space from an annular seal space, finally extrudes the pump housing.Screw pump is as one
The machinery of novel conveying liquid, has simple in construction, safe and reliable, easy maintenance, to go out liquid continuous uniform etc. excellent
Point, application the most commercially is widely.
Screw pump is used as fuel injection, fuel oil supply and delivery pump in heating equipment.At chemistry petrochemical industry and food
Industry is used as loading, conveying and solution feed pump.Boats and ships are used as conveying, supercharging, fuel oil injection and grease pump and peculiar to vessel
Hydraulic means pump.Screw pump is widely used in each row such as oil, chemical fibre, metallurgy, machinery, electric power, lathe, boats and ships, glass, highway
Each industry.Screw pump is applicable to carry fuel oil, lubricating oil, hydraulic oil, crude oil, Colophonium and the lubricating liquid of other similar oil.
Screw pump makees lubricating pump in industrial circle, makees hydraulic pump in hydraulic system, carries and booster pump in fuel system;?
Fuel transfer system carries and gasoline pump.Screw pump is rotator type displacement pump, and it is to utilize the screw rod theory of engagement, relies on rotation
Screw rod engages each other in pump block, and the medium carried is enclosed in engagement intracavity, axially along a screw the continuously and smoothly ground row of being pushed into
Outlet, provides stable pressure for system.Screw pump is applicable to carry various non-corrosiveness oils and similar oil and lubricity liquid
Body.
Existing screw pump, because structure design, process materials selection and the restriction of problems, also exists structure not
Enough simple compact the most durable, when causing work the screw rod of actively screw rod and driven screw engagement ship row time axial force and centrifugal
Power, radial force are excessive, and power is high, flimsy problem.Especially conveying low-viscosity media is such as: coolant, emulsion, saponification
During the mixture condition such as liquid, cooling oil, grinding fluid, cooling water, less economy and durability.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, volume is little, install compact convenience, durable wear-resistant, pressure are high, stream
Let out little in amount, and can effectively strengthen engagement screws and pay the wear-resisting durability of lining inner wall surface, reduce power energy consumption and carry
The screw pump of the low viscosity high pressure in high service life.For vast auto parts and components manufacturer and wind-driven generator wheel-box manufacture
Business and high accuracy equipment manufacturing business greatly reduce the loss of cutter knife, improve part finished surface crudy and add
Work efficiency rate.Benefit is dramatically increased for more mechanized equipment manufacturing enterprise.
The technical solution adopted for the present invention to solve the technical problems is: the screw pump of a kind of low viscosity high pressure, including
The pump housing, the active screw rod being arranged in the pump housing, bearing, sealing structure, be additionally provided with in the pump housing and actively screw rod engages each other suitable
The driven screw joined, bearing, sealing structure are set on active screw rod;Pump housing internal shaping has pump chamber, and axially arranged in pump chamber have
Lining, actively screw rod, driven screw are arranged in lining;Lining is provided with the cooperation suitable with driven screw, actively screw rod
Hole;The sidewall engagement adaptation of the sidewall of driven screw and actively screw rod, and its two ends and the top inner wall of pump chamber, bottom interior wall phase
Connect, and the inwall of its two ends and pump chamber connects;Actively the unsettled pump chamber in the bottom of screw rod bottom interior wall is arranged.
So that driven screw two ends are isobaric, reduce driven screw and the phase mutual friction of suction inlet end face, reduce power,
Improving service life, driven screw is axially arranged the liquid-through hole running through whole bar.
The frictional force caused to reduce the circular runout of driven screw increases problem, is provided with by wear-resisting material bottom pump chamber
The location sealing set that material is made, driven screw bottom device is in location sealing overlaps.
The frictional force caused to reduce the circular runout of driven screw increases problem, is provided with and driven spiral shell bottom pump chamber
The balance weight that bar is suitable.
The effectiveness that driving screw shaft end seals, reduces annular seal space pressure, reduces friction, reduces power, improves and uses the longevity
Life, actively screw rod shaft is provided with one section of labyrinth sealing, and one end that labyrinth sealing deviates from bearing with sealing structure connects.
Further, driven screw is provided with two, and actively the axle of screw rod and two driven screw is generally aligned in the same plane;Pump
Suction inlet and outlet are set on body;Pump chamber is double eight word cavitys, and the mating holes on lining is double eight word three holes accordingly, double eight
The active screw hole that word three hole includes and actively screw rod is suitable, and two driven screw holes that driven screw is suitable;Actively
The effective working screw of screw rod is all wrapped in the active screw hole in double eight word three holes, and driven screw is then from driven screw hole one
Directly extend to suction inlet end face.
In order to be that lining has good self-lubricating property, reduce the frictional force of screw and bushing inwall, and effectively drop
The vibrations of low pump, lining is the inwall lining through ceramic treatment.
In order to improve service life, hardened steel that actively screw rod, driven screw, balance weight three were processed by stiffened or carbon
SiClx or wolfram steel are made.
Preferably, the aperture of liquid-through hole is 0.3-6mm.
In order to meet the demand of different operating mode, sealing structure is mechanical seal or J-type cap sealing ring.
Beneficial effects of the present invention: the most existing screw pump of screw pump of this low viscosity high pressure, decreases existing skill
Art is arranged in higher-pressure region and the axle sleeve of driven screw video so that structure is simpler, compact.By active screw rod drive from
Dynamic screw rod, and the bottom unsettled pump chamber bottom interior wall of actively screw rod arranges, so can effectively solve because of driven screw is axial
Power and radial centrifugal force is excessive and the most wear-resisting durable problem that causes.Driven screw is axially arranged the logical liquid running through whole bar
Hole, is provided with the balance weight connected with driven screw bottom pump chamber so that driven screw two ends approximation equipressure, reduces balance weight
Friction, it is possible to effectively reduce power, play energy-conservation purpose, can improve service life simultaneously.Actively screw rod shaft is arranged
Having one section of labyrinth sealing, labyrinth sealing is provided for a long term extra pressure compensation, reduces the pressure of annular seal space, reduces friction,
Reduce power, it is possible to energy-conservation and improve service life.The lining of ceramic treatment has good self-lubricating property, reduces screw rod
With the frictional force of lining inwall, and lower the vibrations of pump.The hardened steel processed by stiffened or carborundum or wolfram steel are made
Actively screw rod, driven screw, balance weight, has highly abrasion-resistant and increases the service life feature.
Solve general pump series products high pressure conveying low viscosity, dirty medium as containing fine metal particles or grinder wheel
The coolant of ash, emulsion, saponification liquor, grinding fluid, cooling oil, cooling the most wear-resisting fragile frequent replacing pump and the cutter of not being durable of water
Uneconomic problem that tool causes.Substantially increase cutting-tool's used life and the crudy of parts and production efficiency.Especially
It is at deep hole drilling machine, numerically controlled tooth grinding machine, crankshaft grinding machine, wind-driven generator wheel-box processing, high-accuracy hydraulic part manufacture, vapour
Car parts: precision gear and the field such as bent axle, motor body arrive favor and extensively apply.Such that it is able to be applied to numerical control
Chip removal, chip breaking field are rinsed in the cooling of machining tool high pressure.
Below with reference to drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.Wherein sealing structure 9 is J-type cap sealing ring.
Fig. 2 is another structural representation of the present invention.Wherein seal 9 mechanical seals of structure.
Fig. 3 is the partial enlarged drawing of aminoacyl site.
Detailed description of the invention
Embodiment, the screw pump of a kind of low viscosity high pressure as shown in Figure 1, Figure 2, Figure 3 shows, including the pump housing 1, it is arranged on pump
Active screw rod 2 in body 1, bearing 8, sealing structure 9, be additionally provided with in the pump housing and actively screw rod 2 engages each other the driven of adaptation
Screw rod 3, bearing 8, sealing structure 9 are set on active screw rod 2;The pump housing 1 internal shaping has pump chamber 4, and axially arranged in pump chamber 4 have lining
Set 5, actively screw rod 1, driven screw 2 are arranged in lining 5;Lining 5 is provided with join suitable with driven screw, actively screw rod
Close hole;The sidewall engagement adaptation of the sidewall of driven screw 3 and actively screw rod 2, and its two ends and the top inner wall of pump chamber 4, bottom
Inwall connects;Actively unsettled pump chamber 4 bottom interior wall in the bottom of screw rod 2 is arranged.Actively screw rod 2 drives driven screw 3 synchronous axial system.
Driven screw 3 is provided with two, and actively the axle of screw rod 2 and two driven screw 3 is generally aligned in the same plane.On the pump housing 1, suction is set
Mouth and outlet;Pump chamber 4 is double eight word cavitys, and the mating holes on lining 5 is double eight word three holes accordingly, and double eight word three holes include
The active screw hole suitable with active screw rod 2, and two driven screw holes that driven screw is suitable.Actively screw rod 2 is effective
Working screw is all wrapped in the active screw hole in double eight word three holes, and driven screw 4 then extends from driven screw hole always
To suction inlet end face.
The location sealing being made up of the high-abrasive material set 17 connected with driven screw 3 it is provided with bottom pump chamber 4.High-abrasive material
Carborundum can be selected.High pressure medium introduce suction inlet in order to offset driven screw 3 axial force while, take carbonization
The location sealing set 17 of driven screw 3 low-pressure area that silicon or other high-abrasive materials are made, it is possible to reduce flow and pressure leakage, and
Overlapping 17 friction position coolings to driven screw 3 and location sealing, the high speed rotating to two driven screw 3 carries out radially determining simultaneously
Position, it is ensured that two driven screw 3 do good rotary motion on its axial line, to improve the energy of the anti-sideslip of driven screw 3
Power, thus it is greatly enhanced its wearability.
In order to make lining 5 have a good self-lubricating property, reduce the frictional force of screw and bushing 5 inwall, and effectively
Reducing the vibrations of pump, lining 5 is the inwall lining through ceramic treatment.Add high molecular abrasion-proof material and be allowed to penetrate into lining 5
Inwall has good self lubricity and durable wear.Actively screw rod 2, driven screw 3, location sealing set 17 are processed by stiffened
The hardened steel crossed or carborundum or wolfram steel are made.Can strengthen resisting the frictional dissipation of driven screw 3.
Seal structure 9 for mechanical seal or J-type cap sealing ring.Actively screw rod 2 shaft is provided with one section of labyrinth sealing 7,
Labyrinth sealing 7 and mechanical seal 9 or J-type cap sealing ring deviate from one end of bearing 8 and connect.Described labyrinth sealing 7 is for arranging
The ring packing tooth that on active screw rod 2 outer wall one group once arranges, forms one between ring packing tooth and ring packing tooth
Series throttle clearance and expand cavity, sealed medium when by the gap in tortuous labyrinth generation throttle effect and reach Drain Resistance
Purpose.Labyrinth sealing 7 combines J-type cap sealing ring or mechanical seal 9 uses, and can apply to more operating mode.Such as labyrinth
Formula seals 7 and can be applicable to suspension type installation in water tank, and a little leakage is directly entered fuel tank and does not pollutes the environment, and J-type cap is close
Seal cost is lower, greatly reduces purchase cost;Mechanical seal 9 can be applicable to the dry type installation that water tank is got angry outside water tank, really
Protect and do not leak.
So that driven screw 3 two ends are isobaric, reduce driven screw 3 and the phase mutual friction of suction inlet end face, reduce energy
Wasted work rate, improves service life, and driven screw 3 is axially arranged the liquid-through hole 16 running through whole bar;Also can say it is in driven screw 3
Mandrel connects to being designed with from higher-pressure region to low-pressure area or runs through the liquid-through hole 16 of whole driven screw 3.The aperture of liquid-through hole 16
For 0.3-6mm.Liquid-through hole 16 in order to introduce the high pressure of higher-pressure region by hydro-cushion offset when driven screw 3 runs axial
Power.The design of similar functions is played it may also is that individually bore a hole via the pump housing 1 and quote or from higher-pressure region housing with liquid-through hole 16
Or the outside boring of bearing block connects high-voltage tube and high pressure introduces suction inlet low-pressure area.
Embodiment 2, except being provided with the suitable balance weight of driven screw 3 rather than location sealing set 17 bottom pump chamber 4
In addition, remaining is with embodiment 1.Hardened steel that balance weight was processed by stiffened or carborundum or wolfram steel are made.
The flow of the screw pump of low viscosity high pressure is 1-1000 liter/min, operating pressure 1-15Mpa, and inlet pressure is
Big 2Mpa, operating temperature is the highest 130 DEG C, kinematic viscosity 1-2500 2.
Above in association with accompanying drawing, the present invention is exemplarily described.Obviously, the present invention implements not by above-mentioned side
The restriction of formula.As long as the improvement of the various unsubstantialities that the method design that have employed the present invention is carried out with technical scheme;Or not
Improved, above-mentioned design and the technical scheme of the present invention are directly applied to other occasion, all in protection scope of the present invention
Within.
Claims (10)
1. a screw pump for low viscosity high pressure, including the pump housing (1), the active screw rod (2) being arranged in the pump housing (1), bearing
(8), seal structure (9), be additionally provided with in the pump housing (1) and actively screw rod (2) engages each other adaptive driven screw (3), bearing
(8), seal structure (9) to be set in active screw rod (2);The pump housing (1) internal shaping has pump chamber (4), and axially arranged in pump chamber (4) have
Lining (5), actively screw rod (2), driven screw (3) are arranged in lining (5);Lining (5) is provided with and driven screw, actively spiral shell
The mating holes that bar is suitable;It is characterized in that: the sidewall engagement adaptation of the sidewall of driven screw (3) and actively screw rod (2), and its
Two ends and the top inner wall of pump chamber (4), bottom interior wall connect;Actively bottom unsettled pump chamber (4) bottom interior wall of screw rod (2) sets
Put.
The screw pump of low viscosity high pressure the most according to claim 1, it is characterised in that: driven screw (3) is axially arranged
There is the liquid-through hole (16) running through whole bar.
The screw pump of low viscosity high pressure the most according to claim 1 and 2, it is characterised in that: pump chamber (4) bottom is provided with
The location sealing set (17) being made up of high-abrasive material, driven screw (3) bottom device is in location sealing set (17).
The screw pump of low viscosity high pressure the most according to claim 1 and 2, it is characterised in that: pump chamber (4) bottom is provided with
The balance weight suitable with driven screw (3).
The screw pump of low viscosity high pressure the most according to claim 1 and 2, it is characterised in that: actively screw rod (2) shaft sets
It is equipped with one section of labyrinth sealing (7), labyrinth sealing (7) and seal structure (9) and deviate from one end of bearing (8) and connect.
The screw pump of low viscosity high pressure the most according to claim 3, it is characterised in that: driven screw (3) is provided with two
Root, actively the axle of screw rod (2) and two driven screw (3) is generally aligned in the same plane;The pump housing arranges suction inlet and outlet on (1);
Pump chamber (4) is double eight word cavitys, and the mating holes on lining (5) is double eight word three holes accordingly, and double eight word three holes include and active
The active screw hole that screw rod (2) is suitable, and two driven screw holes that driven screw (3) is suitable;Actively screw rod (2) is effective
Working screw is all wrapped in the active screw hole in double eight word three holes, and driven screw (3) then prolongs from driven screw hole always
Reach suction inlet end face.
The screw pump of low viscosity high pressure the most according to claim 1, it is characterised in that: lining (5) is that inwall is through pottery
The lining that porcelainization processes.
The screw pump of low viscosity high pressure the most according to claim 3, it is characterised in that: actively screw rod (2), driven screw
(3) hardened steel that, location sealing set (17) three was processed by stiffened or carborundum or wolfram steel are made.
The screw pump of low viscosity high pressure the most according to claim 2, it is characterised in that: the aperture of liquid-through hole (16) is
0.3-6mm。
The screw pump of low viscosity high pressure the most according to claim 5, it is characterised in that: sealing structure (9) is that machinery is close
Envelope or J-type cap sealing ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610742546.3A CN106194719A (en) | 2016-08-26 | 2016-08-26 | A kind of screw pump of low viscosity high pressure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610742546.3A CN106194719A (en) | 2016-08-26 | 2016-08-26 | A kind of screw pump of low viscosity high pressure |
Publications (1)
Publication Number | Publication Date |
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CN106194719A true CN106194719A (en) | 2016-12-07 |
Family
ID=57526973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201610742546.3A Pending CN106194719A (en) | 2016-08-26 | 2016-08-26 | A kind of screw pump of low viscosity high pressure |
Country Status (1)
Country | Link |
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CN (1) | CN106194719A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109854497A (en) * | 2019-01-12 | 2019-06-07 | 金迈思液压设备(天津)有限公司 | A kind of three screw rod labyrinth seals cutting liquid pump |
CN110230592A (en) * | 2019-07-30 | 2019-09-13 | 浙江博大泵业有限公司 | A kind of Quimby pump that metal screw is used with the pairing of line with rubber screw rod |
CN113192770A (en) * | 2021-04-20 | 2021-07-30 | 贵阳立特精密机械有限公司 | Vacuum impregnation device |
IT202000021280A1 (en) * | 2020-09-09 | 2022-03-09 | Metelli S P A | MULTI-SCREW PUMP FOR COOLING CIRCUITS |
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DE672700C (en) * | 1936-07-30 | 1939-03-08 | Imo Industri Ab | Screw pumps, motors, knives, etc. like |
CN2811603Y (en) * | 2005-07-11 | 2006-08-30 | 天津泵业机械集团有限公司 | High pressure three-screw pump |
CN102287368A (en) * | 2011-09-22 | 2011-12-21 | 黄山工业泵制造有限公司 | Composite balance single-suction double-screw pump |
US20150369241A1 (en) * | 2013-03-01 | 2015-12-24 | Netzsch Pumpen & Systeme Gmbh | Screw Pump |
CN206035802U (en) * | 2016-08-26 | 2017-03-22 | 黄山艾肯机械制造有限公司 | Low viscosity high pressure's spiral shell sucker -rod pumping |
-
2016
- 2016-08-26 CN CN201610742546.3A patent/CN106194719A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE672700C (en) * | 1936-07-30 | 1939-03-08 | Imo Industri Ab | Screw pumps, motors, knives, etc. like |
CN2811603Y (en) * | 2005-07-11 | 2006-08-30 | 天津泵业机械集团有限公司 | High pressure three-screw pump |
CN102287368A (en) * | 2011-09-22 | 2011-12-21 | 黄山工业泵制造有限公司 | Composite balance single-suction double-screw pump |
US20150369241A1 (en) * | 2013-03-01 | 2015-12-24 | Netzsch Pumpen & Systeme Gmbh | Screw Pump |
CN206035802U (en) * | 2016-08-26 | 2017-03-22 | 黄山艾肯机械制造有限公司 | Low viscosity high pressure's spiral shell sucker -rod pumping |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109854497A (en) * | 2019-01-12 | 2019-06-07 | 金迈思液压设备(天津)有限公司 | A kind of three screw rod labyrinth seals cutting liquid pump |
CN110230592A (en) * | 2019-07-30 | 2019-09-13 | 浙江博大泵业有限公司 | A kind of Quimby pump that metal screw is used with the pairing of line with rubber screw rod |
IT202000021280A1 (en) * | 2020-09-09 | 2022-03-09 | Metelli S P A | MULTI-SCREW PUMP FOR COOLING CIRCUITS |
EP3967882A1 (en) * | 2020-09-09 | 2022-03-16 | METELLI S.p.A. | Multiscrew pump for cooling circuits |
CN113192770A (en) * | 2021-04-20 | 2021-07-30 | 贵阳立特精密机械有限公司 | Vacuum impregnation device |
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Application publication date: 20161207 |