CN1771398A - Double cone for generation of a pressure difference - Google Patents

Double cone for generation of a pressure difference Download PDF

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Publication number
CN1771398A
CN1771398A CNA038265206A CN03826520A CN1771398A CN 1771398 A CN1771398 A CN 1771398A CN A038265206 A CNA038265206 A CN A038265206A CN 03826520 A CN03826520 A CN 03826520A CN 1771398 A CN1771398 A CN 1771398A
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Prior art keywords
cone
equipment
double
hole
diameter
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CNA038265206A
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CN100419276C (en
Inventor
约翰·斯塔克
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DCT Double Cone Technology AG
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DCT Double Cone Technology AG
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Publication of CN1771398A publication Critical patent/CN1771398A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/466—Arrangements of nozzles with a plurality of nozzles arranged in parallel

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  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Reciprocating Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Pens And Brushes (AREA)
  • Exhaust Silencers (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Inert Electrodes (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

The present invention deals with a double-cone device that produces enhanced suction, pressure amplification and reduced noise. The enhancement is achieved is by using a continuous geometry for the two frustroconical sections of the double-cone device. Further, a plurality of holes on the exit cone is used to suck the material into the device. Continuous geometry results in a stable flow profile that leads to reduced noise and enhanced amplification. Holes increase the suction force since they can be placed very close to the orifice. Further enhancements are also achieved by choosing the appropriate range of entry cone and exit cone angles.

Description

Be used to produce the double cone of pressure reduction
Technical field
The present invention relates to a kind of double-cone arrangement, be used for when fluid flows through this double-cone arrangement, producing a pressure reduction.Especially, the present invention relates to a kind of double-cone that has produced the wearing and tearing of enhanced suction and reduction.
Background technique
A double-cone comprises an input unit, an outlet port unit and an intermediate portion, and each all is the conical butt of hollow for input unit and outlet port unit, and intermediate portion is called the mouth of pipe.When fluid flow through this equipment, opening part presented suction properties.This suction properties makes that a double-cone all is very much useful, is drawn into separation process from well in many occasions---for example desalination and deionization.In these were used, double-cone was used for providing a pressure to amplify to the employed fluid of these processes.
The U.S. Patent application US4792284 that is called " being used for producing and utilizing the equipment of pressure reduction and technology thereof to use (Device forcreating and exploiting pressure difference and the technical applicationsthereof) " in name has described double-cone.The described double-cone of this patent is shown among Fig. 1.
Double-cone 100 comprises two coaxial frusto-conical portions, is called entrance cone 102 and outlet circular cone 104, and they keep together by a cylindrical tube 110.The feature of entrance cone 102 is its length L 1, than major diameter D 1, less diameter d 1With cone angle θ 1Similarly, the feature of outlet circular cone 104 is its length L 2, than major diameter D 2, less diameter d 2With cone angle θ 2Smallest diameter portion between these two-part is called the mouth of pipe 106.For double-cone 100 provides a supply flow that enters and discharge from outlet circular cone 104 from entrance cone 102.Supply flow can be any fluid, promptly can be liquid or gas.
Cylinder connecting tube 110 has surrounded the zone around the mouth of pipe.An inlet 108 that is positioned on the cylinder connecting tube 110 makes fluid to be pumped into the mouth of pipe 106 from equipment 100 outsides.
In the process of flowing, supply flow has experienced a variation in pressure in double-cone 100, and this variation in pressure is the geometrical configuration of double-cone 100 and at the function of the liquid speed of the ingress of entrance cone 102.This variation in pressure in double-cone 100 is shown among Fig. 2.As shown in Figure 2, the pressure in double-cone 100 reduces when fluid flows through entrance cone 102 gradually, raises again in outlet circular cone 104 then.(z=0) locates the pressure minimum in place in the mouth of pipe 106.And, at entrance cone 102 section start (z=-L 1) pressure P 1With at outlet circular cone 104 exit point (z=L 2) pressure P located 2Be different.This pressure differential deltap P=P 1-P 2Be called through the pressure drop behind the equipment 100.
The function that supply flow proterties in equipment or variation in pressure are a plurality of factors, these factors comprise: for example the geometric parameters such as cone angle of entrance and exit circular cone, in the external pressure in the outlet port of the ingress of entrance cone and outlet circular cone.Especially, external pressure is high more, and is low more at the pressure at mouth of pipe place.This has caused the higher suction force at mouth of pipe place.
The performance of double-cone is amplified with its pressure usually and is weighed.The pressure amplification of double-cone is defined as: the pressure P in outlet circular cone outlet port 2And through the ratio between the pressure drop Δ P behind the equipment.Can improve the pressure amplification by reducing the pressure drop or the pressure of increasing export.It is the noise that is produced by double-cone that the another one performance is weighed parameter.High noise level can cause the quick wearing and tearing of equipment, and is commonly considered as not environmental protection.In addition, must reduce to the wearing and tearing of equipment minimum to guarantee that equipment has a long life cycle.
In basic doublecone design, taked multiple improvement to improve its performance.
PCT patent application PCT/the CH99/00403 that is called " double cone (Double-cone for generation of apressure difference) that is used for producing pressure reduction " in name has described such improvement.This patent has been described a kind of double-cone, and it comprises an entrance cone and an outlet circular cone, and entrance cone and outlet circular cone are coupled together to produce a mouth of pipe by its smaller diameter end.In addition, inlet is arranged in the outlet circular cone, away from the mouth of pipe.Entrance cone angle θ 1Also be refined to less than 5 °.These improvement have reduced the noise and the wearing and tearing of double-cone.
Be called in name among " double-cone and pump (Double-cone device and pump) " PCT patent application PCT/CH02/00134 and described another kind of improvement.This double-cone comprises an entrance cone and outlet circular cone that couples together by one the 3rd circular cone.An inlet is arranged in the outlet circular cone.The smaller diameter end of entrance cone and the 3rd circular cone couple together to form a mouth of pipe.The cone angle of the 3rd circular cone is less than the cone angle of outlet circular cone.In addition, the cone angle of the 3rd circular cone must be between 1 ° to 5 °.The introducing of the 3rd circular cone and inlet is arranged on away from mouth of pipe place reduced wearing and tearing.This is because the material of wall can not bear very high stress, as in initial double cone structure.Also be minimized through the pressure drop behind the equipment, caused better suction performance.
Though doublecone design has been carried out multiple improvement, can also take further to improve to add strong pressure and amplify, reduce noise level and steady flow.For example, in the existing equipment under being in some running state, the noise of generation can reach 110 to 115 decibels magnitude, and the patient noise level of people is about 85 decibels.Therefore, need have double-cone than low noise levels.In addition, in existing double-cone, in the equipment be flowing in high flow rate the time stable inadequately.Therefore, need to improve design to be stabilized in flowing under the high flow rate.
Summary of the invention
An object of the present invention is to provide a kind of double-cone that strengthens the pressure amplification that has.
Another object of the present invention provides a kind of double-cone that has enhanced suction pressure in the ingress.
Another object of the present invention provides a kind of double-cone with noise level of reduction.
Thereby another object of the present invention is the wearing and tearing that reduce on the double-cone prolongs its working life.
Another object of the present invention is to improve the flow profile of the fluid of the double-cone of flowing through.
Another object of the present invention provides a kind of double-cone with operating temperature of reduction.
And also another purpose of the present invention provides a kind of double-cone, compares with existing double-cone, and it can be worked under high flow rate effectively.
Above-mentioned purpose reaches by using a double-cone with continuous geometrical configuration.Especially, double-cone comprises two frusto-conical portions, is called entrance cone and outlet circular cone.Inlet circle and outlet circular cone have a common smaller diameter face.This common diameter region is called the mouth of pipe.In addition, near on the outlet circular cone of the mouth of pipe a plurality of holes are being arranged.
With existing double-cone can obtain compare, the present invention has realized that higher pressure amplifies, higher suction force and lower noise.By using a continuous geometrical configuration and having realized this purpose as the circular hole of suction inlet.
The hole forms on the outlet circular cone, is in the downstream of the mouth of pipe, but is in the outlet tapered segment of diameter less than 1.5 times nozzle diameter.The size in hole is less than or equal to half of nozzle diameter.
The cone angle of entrance cone is less than or equal to 5 °, and the cone angle of outlet circular cone is less than or equal to 4 °.This has caused the power absorption, the noise level of reduction and the higher flow rate that reduce.
In an optional embodiment of the present invention, Kong Youyi away from the mouth of pipe on the outlet circular cone has the part of hole to replace, and is used for simulating a zone with the very little hole of numerous size, and this zone is between the outlet circular cone and the mouth of pipe.This hole part is made by materials such as for example potteries.
The optional embodiment of another one of the present invention comprises that two are called the frustum of a cone unit of entrance and exit circular cone, an orifice region and an embedded part.In this equipment, embedded part provides the path in the material flow suction pipe port area.In addition, the outlet cone angle is less than 2 °.
Description of drawings
The preferred embodiments of the present invention will be described with reference to the drawings hereinafter, and accompanying drawing is used for explaination and unrestricted the present invention, and wherein same label is represented same element, wherein:
Fig. 1 has shown the double-cone arrangement that a U.S. Patent application US4792284 who is called " being used for producing and utilizing the equipment of pressure reduction and technology thereof to use " in name describes;
Fig. 2 has shown the variation in pressure when supply flow is flowed through the different piece of double-cone;
Fig. 3 has shown a double-cone according to the continuous geometry configuration of preferred embodiment;
Fig. 4 has shown a double-cone that has the continuous geometry configuration of a hole part;
Fig. 5 has shown a double-cone with an embedded part.
Embodiment
The present invention has disclosed a kind of double-cone with continuous geometry configuration, and it has one first tapered portion and one second flaring part.A plurality of holes on the second portion at mouth of pipe rear have made things convenient for the suction in equipment.The mouth of pipe is the starting point that tapered portion finishes part and flaring part, and it still is the part of device diameters minimum.
Fig. 3 has shown the double-cone with continuous geometry configuration 300 according to a preferred embodiment of the invention.Equipment 300 comprises two frusto-conical portion and a plurality of holes 306 that are positioned on the outlet circular cone 304 that are called the hollow of first tapered portion (being called entrance cone hereinafter), 302 and second flaring part (being called the outlet circular cone hereinafter) 304.The part of equipment 300 diameter minimums is also referred to as the mouth of pipe 308.The mouth of pipe 308 also is the exit portion of entrance cone 302 and the intake section of outlet circular cone 304.In a preferred embodiment, the edge of the mouth of pipe should be point and the cross section should be fully circular.For the person of ordinary skill of the art, it is evident that the edge also can be level and smooth.
Entrance cone 302 is characterised in that its length L 1, bigger diameter D 1With cone angle θ 1Similarly, outlet circular cone 304 is characterised in that its length L 2, bigger diameter D 2With cone angle θ 2
In a preferred embodiment of the invention, entrance cone angle θ 1Be less than or equal to 5 °, and the cone angle of outlet circular cone is less than or equal to 4 °.L 1, D 1, L 2, D 2Value can be according to selected angle θ 1, θ 2Value select.For the person of ordinary skill of the art, it is evident that the value that can adopt other entrance cone angles and outlet cone angle, and can not deviate from scope of the present invention.Yet on selected angle, this equipment noise level reduces and requires the energy of input lower.
Infeeded the supply flow 310 that enters and discharge from outlet circular cone 304 from entrance cone 302 in the double-cone 300.Supply flow 310 can be any fluid, for example liquid or gas.
Supply flow 310 has experienced variation in pressure in double-cone 300.Pressure when supply flow 310 is flowed through entrance cone 302 in the double-cone descends gradually, and rises again in outlet circular cone 304 subsequently.Pressure is minimum at the mouth of pipe 308 places.In the outlet circular cone, the low pressure around the mouth of pipe 308 allows material 312 to pass through hole 306 outside equipment 300 and within the inhalation device 300.
The hole can be an Any shape, and is for example square, oval and circular.In a preferred embodiment, adopted circular port.In addition, in a preferred embodiment of the invention, 306 longshore currents moving direction in hole tilts.Necessarily it is evident that for the person of ordinary skill of the art: for the direction of supply flow, the axis in hole can be along any direction, for example perpendicular to the surface of outlet circular cone or against the direction of supply flow, and do not deviate from scope of the present invention.
The size in hole 306 depends on the material 310 in the supply flow and the size of the mouth of pipe 308.The character of the material that sucks has directly influenced the size in hole.For example, if the material that sucks is a water, so the diameter in hole and the ratio between the nozzle diameter should less than 0.5 and its absolute value should be limited in less than in 10 millimeters the scope.If what use is non-Newtonian fluid, the maximum diameter in hole is limited in 4 to 5 millimeters so.In addition, for a kind of non Newtonian liquid, the size in hole depends on the mechanical property of liquid very much.In a preferred embodiment, preferably, the size in hole is less than 0.2 times nozzle diameter.Preferably, the ratio between the size of the hole and the mouth of pipe is little, because if this ratio is too high, can the stability of supply flow be had a negative impact so.
A plurality of holes have been used so that can suck a large amount of materials.The position of retaining hole is positioned as close to the mouth of pipe, because suction force reduces when leaving orifice plane.In a preferred embodiment of the invention, the hole forms on a cross section of outlet circular cone 304, and the diameter in this cross section is less than the diameter of 1.5 times the mouth of pipe 308.
In an optional embodiment of the present invention, the intake section of outlet circular cone is made by porous material, rather than has a plurality of holes.This embodiment is described with Fig. 4.
Fig. 4 has shown a double-cone 400, comprises entrance cone 302, outlet circular cone 304 and a hole part 402.The geometrical configuration of equipment is continuous and entrance cone 302 is made by first material with outlet circular cone 304, and this material can be the common material that is used to make double-cone, for example steel.Hole part 402 has the material of hole to make by for example pottery or glass composite etc.It is the ideal material that is used for the large scale double-cone that hole concrete composite is arranged.In other examples, can be formed with the part of hole by the suitable material of chemical leaching.For example, the composite of being made up of different-alloy and plastics can be used for forming geometrical configuration, is formed with the part of hole then by chemical erosion or the suitable zone of electroerosion.Supply flow 310 equipment 400 of flowing through enters and is expelled to the outlet of outlet circular cone 304 from the inlet of entrance cone 302.This effulent comprises supply flow 310 and the material 404 that sucks.Material 404 is inhaled in the equipment 400 by hole part 402.
For porous material, used the hole of dimensional range between 50 to 100 μ m, relatively quietly aspirate (low noise levels) to provide one, and do not reduce suction capactity.In addition, preferably, the diameter of hole part 402 should be less than the diameter of 1.5 times the mouth of pipe 308.
Advantage
The invention provides the pressure amplification of enhancing and the noise that reduces.
Noise in double-cone is produced by a flow profile that is not inconsistent with selected geometrical configuration.In other words, fluid does not contact the wall of double cone fully.In addition, in existing equipment, when supply flow when entrance cone flows to orifice region, flow profile changes sharp.The present invention has reduced this noise by producing a flow profile of comparing the geometrical configuration of more closely following wall with existing double-cone.
The continuous geometry configuration of double-cone of the present invention makes the flow profile maintenance at the mouth of pipe 308 and the supply flow of outlet in the circular cone 304 contact with wall.This is because continuous geometrical configuration forbids that supply flow 310 is as becoming free in the existing double-cone.Thereby when supply flow 310 moves to outlet during circular cone 304 from the mouth of pipe 308, flow profile does not take place sharply to change.The flow profile of this improvement has caused the remarkable reduction of noise level.In addition, the flow profile of improvement has reduced the wearing and tearing of equipment.In addition, but exist the energy efficiency of equipment to compare with existing, the flow profile of the improvement equipment that makes is worked expeditiously with very high flow rate.
Compare with existing double-cone, continuous geometrical configuration has also increased the amplification of pressure.The pressure that can obtain to amplify be the function of the flowing state in double cone.Especially, the pressure amplification is the function of axial flow velocity component.The axial flow velocity component is occupied an leading position more, and the amplification that can obtain is strong more.The continuous geometry configuration has reduced the tendency that non axial velocity component increases, thus the increase that causes pressure to amplify.
For example, compare with the performance of an existing double-cone, the double-cone of a continuous geometry configuration causes pressure to amplify approximately increases by 50%.The noise that the double-cone of continuous geometry configuration produces also is reduced.For existing double-cone, can produce about 100 decibels noise, and the double-cone of continuous geometry configuration produces about 80 decibels noise.Especially, at an entrance cone angle is that 5 ° and outlet cone angle are in the experiment of being carried out in 2 ° the double-cone of continuous geometry configuration, only produced the pressure drop of 10 crust, on an about noise level of 80 decibels, produced about 1.8 times pressure simultaneously and amplified.But compare with the existing equipment with specific power, the performance that this pressure amplifies has improved about 50%.
In addition, work as θ 1In the time of≤5 °, supply flow rotating tendency in equipment 300 reduces.The revolution of supply flow causes the consumption of energy.Thereby the selection of the Inlet cone angle that is provided has reduced the energy consumption that causes owing to revolution.The increase that the minimizing of energy consumption has caused obtainable pressure to amplify.
Work as θ 2≤ 4 °, the flow profile of the supply flow in outlet circular cone 304 is stablized.Even the stable of fluid makes that equipment 300 also can use effectively when higher flow.The energy that equipment 300 consumes also is minimized.In addition, the noise of equipment generation also is minimized.
For example, when when the specific hydraulic pressure reflux pump (hydraulic reverse pumping), the entrance cone angle is that 5 ° and outlet cone angle are that 5 ° existing double-cone can not operate effectively.And on the other hand, be that 2 ° double-cone works together and do not have any problem according to outlet cone angle of the present invention.
With to remove sliced section from the outlet circular cone in existing double-cone opposite, the use in hole has caused one at the mouth of pipe 308 downstream enhanced suction pressure.Suction force depends on the pressure that is produced around the mouth of pipe 308.At this regional pressure function that is a plurality of parameters.These parameters comprise the physical dimension of double-cone 300, at the outlet port applied pressure of outlet circular cone 304 with the position of the inlet of material inhalation device 300.Especially, if be used to aspirate the close mouth of pipe of inlet of material, then suction force is higher.This is because suction force depends on the pressure in the mouth of pipe 308.Pressure in the mouth of pipe 308 is low more, and suction force is just high more.After leaving the mouth of pipe 308, pressure sharply rises.Thereby for making the suction force maximum, the suction inlet should the as close as possible mouth of pipe 308.The present invention utilizes this fact, produces higher suction by using a plurality of holes 306 near the mouth of pipe.
The reason of using hole 306 be because: compare as the section of taking out from the outlet circular cone in the existing equipment with one, hole 306 more can close orifice plane.When from the outlet circular cone, removing a section, formed a free jet, this free jet could resume contacts again with the outlet conical walls after deeply exporting in the circular cone.Flow velocity is high more, and this problem can worsen more.If the section of removing is too near to the mouth of pipe, then jet velocity is too high, and the outlet circular cone can not apply enough influences to the main flow near the mouth of pipe.Thereby otch can not be near the mouth of pipe.
Another one embodiment of the present invention uses an embedded part between the entrance and exit circular cone.This embodiment shows with Fig. 5.
Fig. 5 has shown a double-cone 500, it comprises two hollow frusto-conical parts that are called first tapered portion (hereinafter being weighed into a mouthful circular cone), 502 and second flaring part (hereinafter weighing up a mouthful circular cone) 504, and an embedded part 508 that has replaced having the continuous part in hole.
The cone angle of outlet circular cone 504 is less than 2 °.Selected this cone angle, this equipment has obtained significant noise to be reduced.Yet, necessarily it is evident that the value that can use other outlet cone angles and do not deviate from the scope of present embodiment for those of ordinary skill in the art.
Supply flow 510 enters and is expelled to the outlet of outlet circular cone 504 from the inlet of entrance cone 502.Effulent comprises supply flow 510 and sucks material 512.Material 512 is by embedded part 508 inhalation devices 500.
Embedded part 508 comprises that a smaller diameter end from entrance cone 502 extends to the frusto-conical portion of the hollow of the section start that exports circular cone 504.Hollow space than the smaller diameter end of minor diameter and entrance cone 502 coupling, and hollow space than larger diameter distal end and outlet circular cone 504 originally locate be complementary.In addition, embedded part 508 has a plurality of radial holes that are positioned at hollow space, is used for material inhalation device 500.
Use embedded part to cause noise to reduce greatly.For example, if pressure is 19 crust in the outlet of outlet circular cone, the noise that is produced by existing double-cone is the 110-115 decibel.And on the other hand, the noise that is produced by equipment 500 is the 85-90 decibel.
Though the preferred embodiments of the present invention have obtained explaination and described, clearly, the present invention is not limited only to these embodiments.Many improvement, change, variation, substitute and equivalent it will be apparent to those of skill in the art that they do not deviate from main idea of the present invention as described in claims and scope.

Claims (15)

1, a kind of double-cone (300) with continuous geometry configuration is used for producing a pressure reduction when a fluid flows through this equipment, and this equipment comprises:
A. first tapered portion (302) that is roughly the hollow frusto-conical shape; With
B. second flaring part (304) that is roughly the hollow frusto-conical shape,
Wherein this equipment has the mouth of pipe 308 that the part of minimum diameter is this equipment,
Wherein said second flaring part has a plurality of holes on its surface (306) that are positioned at the rear of the described mouth of pipe, so that realize suction.
2, equipment as claimed in claim 1, the cone angle of wherein said first tapered portion is greater than 0 ° and be no more than 10 °, preferably is no more than 5 °.
3, equipment as claimed in claim 1, the cone angle of wherein said second flaring part is greater than 0 ° and be no more than 10 °, preferably is no more than 4 °.
4, equipment as claimed in claim 1, wherein said hole is circular.
5, equipment as claimed in claim 1, the flow direction of wherein said hole longshore current body tilts.
6, equipment as claimed in claim 1, the diameter in wherein said hole is less than half of described opening part diameter.
7, equipment as claimed in claim 1, wherein said hole forms at mouth of pipe place.
8, equipment as claimed in claim 1, wherein said hole are formed on the part in described second flaring part, and the diameter of this part is greater than the diameter of the described mouth of pipe and less than 1.5 times of this nozzle diameter.
9, a kind of double-cone (400) with continuous geometry configuration is used for producing a pressure reduction when a fluid flows through this equipment, and this equipment comprises:
A. first tapered portion (302) that is roughly the hollow frusto-conical shape;
B. second flaring part (402) that is roughly the hollow frusto-conical shape, described second flaring partly be have hole so that realize suction; With
C. the 3rd flaring part (304) that is roughly the hollow frusto-conical shape, the 3rd flaring part is extended from the end of described hole part.
10, equipment as claimed in claim 9, the cone angle of wherein said first tapered portion is greater than 0 ° and be no more than 10 °, preferably is no more than 5 °.
11, equipment as claimed in claim 9, the cone angle of wherein said the 3rd flaring part is greater than 0 ° and be no more than 10 °, preferably is no more than 4 °.
12, equipment as claimed in claim 9, the wherein said part that hole arranged than major diameter greater than described first tapered portion than minor diameter, and less than this first tapered portion 1.5 times than minor diameter.
13, a kind of double-cone (500) is used for producing a pressure reduction when a fluid flows through this equipment, and this equipment comprises:
A. first tapered portion (502) that is roughly the hollow frusto-conical shape;
B. second flaring part (504) that is roughly the hollow frusto-conical shape; With
C, an embedded part (506), described embedded part has a hollow frusto-conical part placed in the middle, this hollow space have smaller diameter end that the smaller diameter end with described first tapered portion is complementary and with the smaller diameter end of described second flaring part be complementary than larger diameter end, this embedded part extends to the section start of described second flaring part from the smaller diameter end of described first tapered portion, and wherein this embedded part has and a plurality ofly is positioned at the radial hole on the hollow embedded part placed in the middle and is convenient to suction.
14, equipment as claimed in claim 13, the cone angle of wherein said first tapered portion is greater than 0 ° and be no more than 10 °.
15, equipment as claimed in claim 13, the cone angle of wherein said second flaring part is greater than 0 ° and be no more than 10 °, preferably is no more than 2 °.
CNB038265206A 2003-06-20 2003-06-20 Double cone for generation of a pressure difference Expired - Fee Related CN100419276C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2003/000402 WO2004113733A1 (en) 2003-06-20 2003-06-20 Double cone for generation of a pressure difference

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Publication Number Publication Date
CN1771398A true CN1771398A (en) 2006-05-10
CN100419276C CN100419276C (en) 2008-09-17

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US (1) US20060140780A1 (en)
EP (1) EP1636498B1 (en)
CN (1) CN100419276C (en)
AT (1) ATE411474T1 (en)
AU (1) AU2003232572A1 (en)
CA (1) CA2525680C (en)
CY (1) CY1108698T1 (en)
DE (1) DE60324202D1 (en)
DK (1) DK1636498T3 (en)
ES (1) ES2315574T3 (en)
IL (1) IL171999A (en)
MX (1) MXPA05012480A (en)
PT (1) PT1636498E (en)
SI (1) SI1636498T1 (en)
WO (1) WO2004113733A1 (en)

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FR2976329B1 (en) * 2011-06-07 2016-02-05 Cmi Thermline Services AERODYNAMIC DEVICE FOR REGULATING TEMPERATURE AND PRESSURE IN A FLUID CIRCULATION CIRCUIT
US9534544B2 (en) 2014-03-28 2017-01-03 Denso International America, Inc. Electric hybrid powertrain regeneration efficiency improvement
US11555638B2 (en) * 2016-11-30 2023-01-17 Dwyer Instruments, Llc Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies
US10641406B2 (en) 2016-11-30 2020-05-05 Universal Flow Monitors, Inc. Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies
US11035483B2 (en) 2018-02-07 2021-06-15 Universal Flow Monitors, Inc. Dual orifice venturi vacuum drawback assemblies having air breather check valve

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR740179A (en) * 1932-06-21 1933-01-23 ejector
US2093408A (en) * 1934-01-06 1937-09-21 Bates Injection pump
US2241337A (en) * 1939-03-04 1941-05-06 Beaton & Cadwell Mfg Company Liquid agitating and siphon break apparatus
US2354151A (en) * 1942-04-16 1944-07-18 United Aircraft Corp Fluid nozzle
US2962221A (en) * 1959-05-12 1960-11-29 United Aircraft Corp Rocket nozzle construction with cooling means
US3371618A (en) * 1966-02-18 1968-03-05 Chambers John Pump
US3468397A (en) * 1966-10-26 1969-09-23 Svenska Flaektfabriken Ab Gas ejector with built-in sound attenuating means
FR2161288A5 (en) * 1971-11-19 1973-07-06 Snecma
US4383646A (en) * 1980-11-19 1983-05-17 Smith Fergus S Snow making nozzle
US4603735A (en) * 1984-10-17 1986-08-05 New Pro Technology, Inc. Down the hole reverse up flow jet pump
AU588624B2 (en) * 1985-09-21 1989-09-21 Paul Werner Straub Process and device for creating and exploiting a pressure differential and its technical application thereof
US5417550A (en) * 1993-11-02 1995-05-23 Marine Gikens Co., Ltd. Submersed jet pump for generating a stream of water
DE29719975U1 (en) * 1997-11-11 1998-01-08 Richter, Siegfried, Dipl.-Ing. (FH), 88605 Sauldorf Suction nozzle operated with compressed air
AU5368299A (en) * 1999-08-31 2001-03-26 Dct Double-Cone Technology Ag Double cone for generation of a pressure difference
US7128092B2 (en) * 1999-08-31 2006-10-31 Dct Double-Cone Technology Ag Separating arrangement for treatment of fluids
US6623154B1 (en) * 2000-04-12 2003-09-23 Premier Wastewater International, Inc. Differential injector
EP1243748A1 (en) * 2001-03-16 2002-09-25 DCT Double-Cone Technology AG Double-cone device and pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108884839A (en) * 2016-04-01 2018-11-23 蒂埃尔威有限公司 The setting method of the outlet flow passage of injector, the manufacturing method of injector and diffuser
CN108884839B (en) * 2016-04-01 2020-03-31 蒂埃尔威有限公司 Ejector, method for manufacturing ejector, and method for setting outlet flow path of diffuser

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ATE411474T1 (en) 2008-10-15
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EP1636498A1 (en) 2006-03-22
EP1636498B1 (en) 2008-10-15
MXPA05012480A (en) 2006-01-30
AU2003232572A1 (en) 2005-01-04
DK1636498T3 (en) 2009-01-26
US20060140780A1 (en) 2006-06-29
CA2525680A1 (en) 2004-12-29
DE60324202D1 (en) 2008-11-27
CY1108698T1 (en) 2014-04-09
WO2004113733A1 (en) 2004-12-29
CN100419276C (en) 2008-09-17
IL171999A (en) 2009-08-03

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