CN201127857Y

CN201127857Y - Novel cavitator

Info

Publication number: CN201127857Y
Application number: CNU2007200160114U
Authority: CN
Inventors: 黄永刚; 周全林
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-21
Filing date: 2007-11-21
Publication date: 2008-10-08
Anticipated expiration: 2017-11-21

Abstract

The utility model relates to a novel cavitating device, comprising a liquid inlet tube, a cavitating cavity and a liquid outlet tube, a channel which is used for connecting the liquid inlet tube and the liquid outlet tube is arranged inside the cavitating cavity; the device also comprises a pore plate which is provided with gas vents inside, a porous cavitating induction head and a drive impeller; the cavitating induction head and the drive impeller are arranged on one end of the pore plate which is arranged inside the liquid inlet pipe, a mounting hole and an air inlet hole are arranged in the cavitating cavity, the other end of the pore plate is arranged in the mounting hole and can make rotation relative to the mounting hole, and the matching length is smaller than the distance from the outer edge of the mounting hole to the air inlet hole. Through the adjustment of ventilation, the nascent cavitation number of cavitation is improved and the pore plate can crush and separate clogs during operation. The novel cavitating device can realize emulsified breaking for emulsified oil, pipe mixture and biological cell disintegration, suitable for chemical separation, physic-chemical reaction intensification, etc.; in addition, the volume is small, the operation is easier and the energy consumption is low.

Description

Novel cavitation device

Technical field

The utility model relates to a kind of cavitation device, and especially a kind of oil emulsion breakdown of emulsion, novel cavitation device that pipeline mixes, biological cell cracks realized is used for technical fields such as chemical separating, physical-chemical reaction reinforcement.

Background technology

The breakdown of emulsion that key that oily waste water is administered and difficult point are oil emulsion.In oily waste water was administered, method commonly used at present had: centrifugation, membrane filtration, flocculation, chemical method, absorption method and ultrasonic dehydration etc.Wherein the chemical demulsification effect is better, but carries out breakdown of emulsion owing to need chemistry to add chemical agent in processing procedure, and isolated oil generally can not directly reclaim, and processing cost is than higher, and the medicament that adds simultaneously also can cause secondary pollution.The correlative study in recent years of ultrasonic cavitation breakdown of emulsion is more, and in laboratory scope, local superhigh temperature and super-pressure that the researcher utilizes cavitation to produce promote chemical reaction, surperficial scale removal etc.But the most of energy of ultrasonic cavitation method is lost in the mode of heat, and efficient is lower, and the drawback of ultrasonic cavitation maximum is to be difficult to realize industrialization.At first to the research of Hydrodynamic cavitation, be for fear of with alleviate the harm that Hydrodynamic cavitation brought.People recognize in recent years, and Hydrodynamic cavitation also can be used to promote the well-being of mankind.Utilize the high-energy that Hydrodynamic cavitation moment gathers, develop much energy-conservation, physical and chemical process efficiently.This extreme physical and chemical condition that cavitation processes produced can make the fluid media (medium) of different in kind produce displacement effect and fuel factor, realizes oily waste water breakdown of emulsion purpose.The high temperature that cavitation processes produces, high pressure, thump can the strengthening physical chemical processes, and it is low to consume energy.

Chinese patent specification CN 1605376A discloses a kind of convolution cavitation device that is used for chemical separating, its basic structure is made up of feed tube, urceolus, middle tube and inner core and nozzle, tube is designed to difformity as required, incoming flow forms high-speed eddy through nozzle in cavitation device inside under certain pressure, regulate when the eddy current internal pressure is lower than the liquid phase saturated vapour pressure and form cavity, crumble and fall when cavity enters the higher-pressure region.This invention structure relative complex, volume is bigger, and in addition, the incoming flow that contains solid phase impurity easily takes place to stop up through the ozzle place and causes the equipment operating condition to change, and has strengthened the difficulty that operation is regulated.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of novel cavitation device, and not only structure is small and exquisite, and in use orifice plate can rotate, and prevents to stop up.

For achieving the above object, the novel cavitation device that the utility model provides comprises feed tube, cavitation chamber and drain pipe, be provided with the passage that connects feed tube and drain pipe in the described cavitation chamber, establish the cavitation of orifice plate, the porous of gas port in described novel cavitation device also comprises and induce head and drives impeller, this orifice plate end dress cavitation in feed tube is induced head and drives impeller, described cavitation chamber is provided with installing hole and air admission hole, the described orifice plate other end places installing hole and can relatively rotate with it, and length of fit arrives the induction port distance less than the installing hole outer.The liquid inflow entrance matched in clearance in orifice plate and cavitation chamber, the gap is 0.01～0.05mm.Orifice plate is having diameter 2-5 millimeter semicircle orifice with edge, cooperation place, cavitation chamber, and the axis of this semicircle orifice and pivot center are 7-15 ° of angle.

Characteristics of the present utility model are: improve the cavitation number of cavitation inception by the air supply that regulate to feed, by the orifice plate rotation produce shear and axially motive force make tamper broken and break away from.Stable working state, cavitation efficient height, easy to use, energy savings.

Description of drawings

Fig. 1 is the structural representation of novel cavitation device

Fig. 2 is the orifice plate front view

Fig. 3 is the orifice plate left view

Fig. 4 is the cutaway view in cavitation chamber

Fig. 5 is Fig. 4 analysing and observe along the A-A face

The specific embodiment

As Fig. 1-shown in Figure 4: novel cavitation device comprises that mainly feed tube 1, cavitation chamber 2, drain pipe 3 orifice plates 7, cavitation induce head and drives impeller.Feed tube 1, cavitation chamber 2, drain pipe 3 connect successively by screw, and there is the liquid passage 6 of flowing through 2 inside, cavitation chamber.Orifice plate 7 has through hole along axis, and its end is taper type in feed tube 1, and cavitation induces 4 to be installed in its end, and its upper surface induces 4 a lower surfaces size consistent with cavitation.Cavitation induces 4 to be porous ceramics, and orifice plate 7 inside have gas port 8 and cavitation to induce the hole on 4 to communicate.Drives impeller 5 is installed in the side of orifice plate 7 taper types.Cavitation chamber 2 is provided with installing hole 10, also has one to make the air admission hole 9 that communicates with the external world in the chamber, and orifice plate 7 other ends stretch into installing hole 10, and to induction port 9 distances, orifice plate 7 can relatively rotate with installing hole 10 built-in length less than installing hole 10 outers.Orifice plate 7 and cavitation chamber 2 are in liquid inflow entrance 11 matched in clearance, and the gap is 1～5%mm.Liquid inflow entrance 11 place's orifice plates 7 edges in cavitation chamber 2 have diameter 2-5 millimeter semicircle orifice 12, and the axis of this semicircle orifice 12 and pivot center are 7-15 ° of angle.Compressed air enters in the installing hole 10 through air admission hole 9 during work, and the gas port 8 by orifice plate arrives cavitations and induces 4 then, discharges from cavitation is induced the pore of head, produces the microvesicle of diameter 2-5 micron, brings out cavitation inception.When incoming flow drives drives impeller 5 rotations with the flow velocity of 3-10m/s during by feed tube 1, and then orifice plate 7 is rotated together, liquid is sneaked into cavity simultaneously being stirred, along with the radially area of flowing through reduces gradually, flow velocity increases gradually, when liquid is flowed through the semicircle orifice 12 of plate hole 7, and the flow velocity maximum.The current pressure reduce rapidly after flowing out semicircle orifice 12, and cavity is crumbled and fall, and produce local HTHP and high-speed micro-jet.Liquid is finished cavitation processes in cavitation chamber 2, flow out through drain pipe 3.In order to improve sealing, can establish seal groove with the end face that cavitation chamber 2 links to each other at feed tube 1, drain pipe 3 is established seal groove with the end face that cavitation chamber 2 links to each other, and seal is installed in seal groove.Novel cavitation device can be directly installed on the pipeline by flange, its size also can be according to the difference of caliber different respective change with treatment process.Novel cavitation device each parts except that cavitation is induced head can be according to materials such as the different mining plastics of treat liquid or metals.Cavitation induces head also can adopt other porous materials.Orifice plate also can package assembly.

Claims

1. a novel cavitation device comprises feed tube, cavitation chamber and drain pipe, be provided with the passage that connects feed tube and drain pipe in the described cavitation chamber, it is characterized in that: the cavitation of establishing orifice plate, the porous of gas port in described novel cavitation device also comprises is induced head and drives impeller, the end dress cavitation of this orifice plate in feed tube induced head and drives impeller, described cavitation chamber is provided with installing hole and air admission hole, the described orifice plate other end places installing hole and can relatively rotate with it, and length of fit arrives the induction port distance less than the installing hole outer.

2. novel cavitation device as claimed in claim 1 is characterized in that: the liquid inflow entrance matched in clearance in described orifice plate and cavitation chamber.

3. novel cavitation device as claimed in claim 2 is characterized in that: described orifice plate is having diameter 2-5 millimeter semicircle orifice with edge, cooperation place, cavitation chamber, and the axis of this semicircle orifice and pivot center are 7-15 ° of angle.