CN210522282U - Combined cavitator capable of being adjusted online - Google Patents

Abstract

The utility model relates to a combined cavitator capable of being adjusted online, including the big and small cylinder bodies connected as an organic whole, the port of big and small cylinder bodies is covered with left and right end lid respectively, the right-hand member of small cylinder body is connected with fluid inlet, the middle section of the circumferential wall of big cylinder body is connected with fluid outlet, the left side of fluid inlet is equipped with the combination and sprays the body, the right-hand member of the combination and sprays the body convex ring that is equipped with the axial fretwork, the left side of spraying the body convex ring leans on the step of the little cylinder body centre bore, the right side of spraying the body convex ring is equipped with fixation nut, fixation nut connects at the inner wall of small cylinder body soon, the left end of the; the inner wall of the center hole of the small cylinder body is provided with a slip ring, the right side of the slip ring is provided with a cutoff ring, the inner wall of the cutoff ring is provided with an inner conical surface of the cutoff ring, and an annular gap channel is formed between the inner conical surface of the cutoff ring and the outer conical surface of the injection body. The combined injection body is provided with a central hole and an end face injection hole. The cavitator can realize various cavitation modes, and has strong raw material adaptability and good cavitation effect.

Description

Combined cavitator capable of being adjusted online

Technical Field

The utility model relates to a combined cavitator that can adjust on line belongs to fluid reaction unit technical field.

Background

The hydrodynamic cavitation phenomenon is that when fluid flows through a flow-limiting area (orifice plate, venturi tube, annular gap, etc.), the internal pressure is reduced, when the pressure is reduced to the saturated vapor pressure of the liquid at the temperature, the liquid begins to vaporize to generate a large amount of cavitation vapor bubbles, when the cavitation vapor bubbles flow through an instant expanded flow channel, the liquid pressure is increased, the volume of the cavitation vapor bubbles is rapidly reduced until collapse, and the collapse instant is accompanied by high-temperature, high-pressure and strong shock waves and microjets. The huge instant energy released when the cavitation bubbles collapse can be utilized to break chemical chains and accelerate the reaction process, so that the hydrodynamic cavitation is widely applied to the fields of wastewater treatment, food, reaction strengthening process and the like.

At present, researchers at home and abroad generally consider that cavitation occurrence strength is judged by a cavitation value, and the formula is as follows: δ c =2 (P-P)_V) /(ρ V), wherein: δ c is the cavitation value, P is the liquid partial static pressure, Pv is the liquid vapor pressure, ρ is the density of the liquid, and V is the velocity of the liquid. It is generally believed that cavitation is likely to occur at δ c < 1, with cavitation reactions being more vigorous with smaller values of δ c; it can be seen that the local static pressure P, the liquid velocity V are important control parameters. According to the transformation relation of hydrostatic energy and kinetic energy and the inverse relation of hydrostatic pressure P and velocity V, the cavitation strength can be seen to be dominated by the velocity V, and meanwhile, the boundary condition of fluid flowing through can also influence the cavitation; cavitation bubble generation and collapse have been the direction of research for hydrodynamic cavitators used in industry.

At present, the cavitation device design at home and abroad basically forces fluid to intercept, rapidly increase flow velocity and generate cavitation bubbles by decompression by single-stage or multi-stage series fixed orifice plates or a fixed annular gap formed between an internal flow-blocking body and an external cavity, and the flow velocity is reduced along with the increase of the section of a flow channel, the pressure is increased and the bubbles are collapsed after passing through the cavitation bubbles. Research shows that great pressure change is difficult to generate between multiple stages, cavitation bubbles occur at the last stage orifice plate, only the mixing function is increased, and power consumption is increased innocently. The flow channel with the non-adjustable section has strict requirements on initial condition parameters (flow, pressure and physical properties) of the fluid, and the stability of a subsequent working section is influenced by slight change, so that the flow channel with the non-adjustable section has great limitation on continuous industrial production; and the requirements for cavitation strength of different raw materials are different, the design is difficult to take into consideration comprehensively at the initial stage and cannot be adjusted on line, and even if the adjustment needs a large amount of manpower, time and the cost of production line pause. The result may be innocent increased power consumption on the one hand and overall line indicator fluctuations and operational complexity, uncertainty on the other hand.

At present, the flow velocity of fluid can be changed by adjusting the number of small holes on a pore plate on line to realize the control of cavitation intensity, the section of the small holes of the structure is not uniformly distributed, although the multi-stage pore plate has the intensified mixing function, cavitation bubbles also occur at the last stage of pore plate; secondly, the number of the small holes communicated with the static hole plate is changed by rotating the movable hole plate, which is equivalent to that a plurality of fixed change gears exist, or continuous stepless change cannot be realized. In addition, the design of the existing cavitators does not have much consideration for the research on the collapse area space of cavitation bubbles. The cavitation device is applied in industry, and the instant energy generated when the bubbles collapse can accelerate the reaction process. The existing collapse area is still a method for continuously meeting the equal-diameter pipeline with general flow velocity, the high-speed fluid at the upstream is not fully expanded, and as a result, on one hand, the fluid carries bubbles to collide and break and flow to the downstream, on the other hand, a large amount of bubbles are gathered to occupy limited space to form a collapse barrier, and the bubbles are not fully collapsed, so that the cavitation effect is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that exists among the prior art, provide a but combined cavitator of online adjustment, can change the fluid velocity of flow, realize online regulation and control cavitation emergence parameter, improve the cavitation effect.

In order to solve the technical problems, the combined type cavitator capable of being adjusted on line of the utility model comprises a large cylinder body and a small cylinder body which are connected into a whole in a step shape and are coaxial, the small cylinder body is positioned at the right side of the large cylinder body, the inner cavities of the large cylinder body and the small cylinder body are communicated with each other, the left end opening of the big cylinder body is covered with a left end cover, the right end opening of the small cylinder body is covered with a right end cover, the right end of the circumferential wall of the small cylinder body is connected with a fluid inlet, the middle section of the circumferential wall of the large cylinder body is connected with a fluid outlet, a combined spraying body is arranged at the left side of the fluid inlet, a spraying body convex ring which is axially hollowed out is arranged at the right end of the combined spraying body, the left side of the injection body convex ring is abutted against the step of the central hole of the small cylinder body, the right side of the injection body convex ring is provided with a fixed nut, the fixed nut is screwed on the inner wall of the small cylinder body, and the left end of the combined injection body is provided with an injection body outer conical surface; the inner wall of the small cylinder body center hole is provided with a sliding ring, the right side of the sliding ring is provided with a cutoff ring, the inner wall of the cutoff ring is provided with a cutoff ring inner conical surface, and an annular gap channel is formed between the cutoff ring inner conical surface and the jet body outer conical surface.

Compared with the prior art, the utility model discloses following beneficial effect has been obtained: the material enters the small cylinder body from the fluid inlet, passes through the hollowed-out convex ring of the jetting body, is jetted out from an annular gap channel between the inner conical surface of the closure ring and the outer conical surface of the jetting body, enters the inner cavity of the large cylinder body, and is finally discharged from the fluid outlet at the bottom of the large cylinder body. The combined jet body realizes axial positioning by the step of the small cylinder body center hole and the fixing nut, the slide block drives the cutoff ring to axially move, so that the section of the annular gap channel can be changed, and the change of the width of the annular gap directly brings the speed change of fluid, thereby effectively controlling the generation and strength of cavitation. The cylindrical bubble area is generated through the annular gap, and the problem that bubbles of a traditional adjustable movable orifice plate are not uniformly distributed is solved. In addition, the section enlargement of the large cylinder body is favorable for reducing the speed and converting kinetic energy into static pressure energy, the bubble collapse condition is created, a favorable bubble collapse space is created, and the cavitation effect can be improved.

As an improvement of the utility model, a piston supported on the inner wall of the large cylinder body is arranged on the left side of the fluid outlet, the center of the left end of the piston is connected with a screw rod sleeve, the screw rod sleeve is screwed in a hand wheel sleeve, the hand wheel sleeve is rotatably arranged at the center of the left end cover, and the left end of the hand wheel sleeve is connected with a large hand wheel; the right end of the piston is connected with the slip ring through a supporting rib extending to the right. The hand wheel sleeve can be rotated through the large hand wheel, and the axial direction of the hand wheel sleeve is fixed, so that the rotation of the hand wheel sleeve enables the screw sleeve to generate axial displacement, the screw sleeve pulls the piston to generate translation, and the piston pulls the sliding ring to translate through the supporting rib, so that the axial displacement of the cutoff ring is realized, and the adjustment of an annular gap channel is realized.

As a further improvement, the right-hand member face center of piston is equipped with the piston boss, the periphery cover of piston boss is equipped with the brace rod flange, the brace rod flange passes through screw and piston fixed connection, and each brace rod symmetric connection is in on the brace rod flange. The supporting rib flange is convenient to independently replace, the processing difficulty of the piston can be reduced, the manufacturing cost is reduced, and the supporting ribs are symmetrically connected to the supporting rib flange, so that the sliding ring can be stably translated.

As a further improvement, the combination sprays the body and is equipped with along the injection body centre bore that the axis link up, the screw rod axle has been connect soon in the screw rod cover, little hand wheel is installed to the left end of screw rod axle, the right-hand member polished rod section of screw rod axle passes the centre bore of piston and inserts in the injection body centre bore. The screw shaft is rotated by the small hand wheel, and the screw shaft moves axially by the connecting thread of the screw shaft and the screw sleeve. When the right end head of the screw shaft is separated from the central hole of the injection body, the combined injection body not only injects the peripheral annular gap channel, but also injects the central hole of the injection body, so that a first cavitation mode of the combined injection body is realized; when the right end polished rod section of the screw shaft is inserted into the central hole of the jet body, the left port of the central hole of the jet body is closed and is not jetted any more, and only the peripheral annular gap channel is used for jetting, so that the second cavitation mode of the combined jet body is realized.

As a further improvement of the utility model, a piston stuffing box is arranged in the central area of the piston, piston stuffing is filled in the piston stuffing box, and the piston stuffing surrounds the periphery of the screw shaft; the left side of the piston stuffing box is provided with a disc spring for compressing the piston stuffing, the left side of the disc spring is provided with a piston gland, the piston gland is fixed on the piston through a screw, and the right end of the screw sleeve is connected with the piston gland. The piston gland compresses the piston packing in the piston packing box, so that sealing is realized between the piston and the screw shaft, and the screw sleeve can realize translation of the piston by pushing and pulling the piston gland. The thickness of the central area of the piston is increased by the piston boss, the length of the piston stuffing box can be prolonged, and the sealing effect is improved. The piston packing can be pressed by the tension of the disc spring all the time, and the abrasion of the piston packing is compensated.

As a further improvement, the periphery of the hand wheel sleeve is installed through the bearing the center of the left end cover, the right side of the bearing is sealed with the left end cover through the left end cover sealing ring, the left side of the bearing is equipped with the bearing gland, the bearing gland is fixed on the left end cover. The hand wheel sleeve can rotate in the left end cover without changing the axial position, and the axial position of the piston can be adjusted through the screw sleeve when the hand wheel sleeve rotates.

As a further improvement, the through-hole that overflows that has a plurality of axial link up is distributed on the circumference of the protruding circle of injection body, the left end face evenly distributed that the combination sprayed the body has a plurality of jet orifices, and the root of each jet orifice link up with the injection body centre bore through spraying radial passage respectively mutually. The overflowing through hole is used for enabling fluid to cross the convex ring of the injection body to reach the annular gap channel on the periphery of the combined injection body, and the fluid entering the central hole of the injection body can enter each injection hole through the injection radial channel, so that the end face of the combined injection body also generates injection jet.

As a further improvement, the jet orifice is equipped with inside and outside two rings on the left end face of the combination injection body, and the root of inner circle jet orifice link up with the injection body centre bore through spraying radial short channel respectively, and the root of outer lane jet orifice link up with the injection body centre bore through spraying radial long channel respectively, spray radial long channel and be located spray the right side of radial short channel. When the right end head of the screw shaft is inserted into the left port of the central hole of the injection body, fluid entering the central hole of the injection body from the right end enters each outer ring injection hole through the radial long injection channel to be injected, enters each inner ring injection hole through the radial short injection channel to be injected, and is injected by the annular gap channel on the periphery, so that the third cavitation mode of the combined injection body is realized. And when the right end of the screw shaft is inserted rightwards continuously to seal the liquid inlet holes of the radial short spraying channels, the fluid entering the central hole of the spraying body from the right end enters the spraying holes of the outer rings through the radial long spraying channels to be sprayed out, and the annular gap channels on the periphery are sprayed out, so that the fourth cavitation mode of the combined spraying body is realized.

As a further improvement, the center of right-hand member lid is pegged graft and is had the valve rod, the right-hand member of valve rod is equipped with the valve rod hand wheel, the left end of valve rod inserts little cylinder body inner chamber and installs the valve body, the valve body is the thick step form in a left side thin right side, the left end periphery of valve body is equipped with the valve body conical surface that can insert the right port of the body centre bore of spouting. The valve rod is rotated by the valve rod handwheel, so that the valve body conical surface at the left end of the valve body is close to the right port of the central hole of the jet body, and the inlet section entering the central hole of the jet body can be adjusted, thereby changing the flow of central jet flow and realizing the fifth cavitation mode of the combined jet body.

As the utility model discloses a further improvement, it has the case to connect soon along the valve body axis, the case is equipped with the case centre bore that link up, and evenly distributed has a plurality of valve body overflowing holes to communicate with each other with the case centre bore on the circumference of valve body major diameter section. When the right end of the screw shaft is separated from the central hole of the jet body, the small diameter section at the left end of the valve body is completely inserted into the central hole of the jet body to seal the central hole, fluid enters the central hole of the valve core through the valve body overflowing hole on the circumference of the large diameter section of the valve body and flows out from the central hole of the valve core, and the aperture of the central hole of the valve core is far smaller than that of the central hole of the jet body, so that the sixth cavitation mode of the combined jet body is realized. The valve core and the valve body are in threaded connection, so that the valve core is convenient to replace, and the size of a central hole of the valve core can be conveniently adjusted.

In conclusion, because the utility model discloses a combined cavitator can realize multiple cavitation mode to can also adjust the velocity of flow of department such as annular space passageway under various cavitation modes, allow the change of supplied materials flow big, through selecting the cavitation module and adding the required cavitation intensity of change fluid overflow cross-sectional area and satisfy the reaction. The annular space cavitation, the central single hole or the combined cavitation can be selected according to the existence of particles and the particle size of raw materials or additives (such as chemical agents and catalysts), the size of the annular space with the same flow area is far smaller than the diameter of the small hole, and the requirements of diversification of the raw materials can be met. Aiming at the analysis of the emulsification sensitivity of the cavitation process to the raw materials, different cavitation modes are selected, and the cavitation process is perfected and smoothly carried out by comprehensively considering the cavitation intensity, the bubble distribution, the collision probability and the impact intensity of bubbles and the wall surface and the like.

Drawings

The invention will be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration purposes only and are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of a first working state of the on-line adjustable combined cavitator of the present invention.

Fig. 2 is a cross-sectional view a-a of fig. 1.

Fig. 3 is a cross-sectional view of B-B in fig. 1.

Fig. 4 is a schematic diagram of the second working state of the on-line adjustable combined cavitator of the present invention.

In the figure: 1. a large cylinder body; 1a fluid outlet; 2. a small cylinder body; 2a, a fluid inlet; 3. a left end cap; 3a, a left end cover sealing ring; 4. a piston; 4a, a piston gland; 4b, piston packing; 4c, supporting rib flanges; 4d, supporting ribs; 4e, disc spring; 5. a screw sleeve; 6. a hand wheel sleeve; 6a, a big hand wheel; 7. a screw shaft; 7a, a small hand wheel; 8. a bearing; 8a, bearing gland bush; 9. a combined jet body; 9a, a convex ring of the injection body; 9a1. flow through vias; 9b. a central hole of the jet body; 9c, inner ring jet holes; 9d, spraying a radial short channel; 9e, an outer ring jet hole; 9f, spraying the radial long channel; 10. fixing a nut; 11. a slip ring; 12. a cutoff ring; 13. a right end cap; 14. a valve body; 14a. a valve core; 14b, a valve body overflowing hole; 15. a valve stem; 16. valve stem handwheel.

Detailed Description

As shown in fig. 1 to 4, the utility model discloses combined cavitator that can adjust on line, including being step-like even as an organic whole and coaxial big cylinder body 1 and little cylinder body 2, little cylinder body 2 is located the right side of big cylinder body 1 and both inner chambers link up each other, the left end mouth of big cylinder body 1 covers has left end cover 3, the right end mouth of little cylinder body 2 covers has right end cover 13, the right-hand member of the circumference wall of little cylinder body 2 is connected with fluid inlet 2a, the middle section of the circumference wall of big cylinder body 1 is connected with fluid outlet 1a, the left side of fluid inlet 2a is equipped with combination injection body 9, the right-hand member of combination injection body 9 is equipped with the injection body bulge loop 9a that the axial is hollowed out, the left side of injection body bulge loop 9a supports and leans on the step conical surface of little cylinder body centre bore, the right side of injection body bulge loop 9a is equipped with fixation nut 10, fixation nut 10 connects soon at the inner; the inner wall of the small cylinder body center hole is provided with a slip ring 11, the right side of the slip ring 11 is provided with a cutoff ring 12, the inner wall of the cutoff ring 12 is provided with a cutoff ring inner conical surface, and an annular gap channel is formed between the cutoff ring inner conical surface and the jet body outer conical surface.

The material enters the small cylinder body 2 from the fluid inlet 2a, passes through the hollowed-out convex ring 9a of the jetting body, is jetted out from an annular gap channel between the inner conical surface of the intercepting ring and the outer conical surface of the jetting body, enters the inner cavity of the large cylinder body 1, and is finally discharged from the fluid outlet 1a at the bottom of the large cylinder body 1. The combined jet body 9 is axially positioned by the step of the central hole of the small cylinder body and the fixing nut 10, the slide block drives the cutoff ring 12 to axially move, so that the section of the annular gap channel can be changed, and the change of the width of the annular gap directly brings the change of the speed of the fluid, thereby effectively controlling the generation and strength of cavitation. The cylindrical bubble area is generated through the annular gap, and the problem that bubbles of a traditional adjustable movable orifice plate are not uniformly distributed is solved. In addition, the section enlargement of the large cylinder body 1 is beneficial to speed reduction and kinetic energy conversion to static pressure energy, the bubble collapse condition is created, a beneficial bubble collapse space is created, and the cavitation effect can be improved.

A piston 4 supported on the inner wall of the large cylinder body 1 is arranged on the left side of the fluid outlet 1a, the center of the left end of the piston 4 is connected with a screw rod sleeve 5, the screw rod sleeve 5 is screwed in a hand wheel sleeve 6, the hand wheel sleeve 6 is rotatably arranged in the center of the left end cover 3, and the left end of the hand wheel sleeve 6 is connected with a large hand wheel 6 a; the right end of the piston 4 is connected to the slide ring 11 through a support rib 4d that protrudes rightward. The hand wheel sleeve 6 can be rotated through the large hand wheel 6a, and the axial direction of the hand wheel sleeve 6 is fixed, so that the screw sleeve 5 generates axial displacement through the rotation of the hand wheel sleeve 6, the screw sleeve 5 pulls the piston 4 to generate translation, and the piston 4 pulls the sliding ring 11 to translate through the supporting rib 4d, so that the axial displacement of the cutoff ring 12 is realized, and the adjustment of an annular gap channel is realized.

The center of the right end face of the piston 4 is provided with a piston boss, the periphery of the piston boss is sleeved with a support rib flange 4c, the support rib flange 4c is fixedly connected with the piston 4 through screws, and the support ribs 4d are symmetrically connected to the support rib flange 4c. Set up brace rod flange 4c and be convenient for independently change, can reduce the processing degree of difficulty of piston 4, reduce manufacturing cost, brace rod 4d symmetric connection is on brace rod flange 4c for the translation of sliding ring 11 is very steady.

The combined injection body 9 is provided with an injection body center hole 9b which is through along the axis, the screw rod sleeve 5 is internally screwed with a screw rod shaft 7, the left end of the screw rod shaft 7 is provided with a small hand wheel 7a, and the right end polished rod section of the screw rod shaft 7 penetrates through the center hole of the piston 4 to be inserted into the injection body center hole 9b. The screw shaft 7 is rotated by the small hand wheel 7a, and the screw shaft 7 moves axially by the connecting thread of the screw shaft 7 and the screw sleeve 5. When the right end head of the screw shaft 7 is separated from the central hole 9b of the jet body, the combined jet body 9 not only jets the peripheral annular gap channel, but also jets the central hole 9b of the jet body, and a first cavitation mode of the combined jet body 9 is realized; when the right polished rod section of the screw shaft 7 is inserted into the central hole 9b of the jet body, the left port of the central hole 9b of the jet body is closed and no longer jets, and only jets are carried out by the peripheral annular gap channel, so that the second cavitation mode of the combined jet body 9 is realized.

A piston stuffing box is arranged in the central area of the piston 4, piston stuffing 4b is filled in the piston stuffing box, and the piston stuffing 4b surrounds the periphery of the screw shaft 7; the left side of the piston stuffing box is provided with a disc spring 4e for compressing the piston stuffing 4b, the left side of the disc spring 4e is provided with a piston gland 4a, the piston gland 4a is fixed on the piston 4 through a screw, and the right end of the screw sleeve 5 is connected with the piston gland 4a. The piston gland 4a compresses the piston packing 4b in the piston packing box, so that sealing is realized between the piston 4 and the screw shaft 7, and the screw sleeve 5 can realize translation of the piston 4 by pushing and pulling the piston gland 4a. The thickness of the central area of the piston is increased by the piston boss, the length of the piston stuffing box can be prolonged, and the sealing effect is improved. The tension of the disc spring 4e can always compress the piston packing to compensate the abrasion of the piston packing.

The periphery of the hand wheel sleeve 6 is installed at the center of the left end cover 3 through the bearing 8, the right side of the bearing 8 is sealed with the left end cover 3 through the left end cover sealing ring 3a, the left side of the bearing 8 is provided with the bearing gland 8a, and the bearing gland 8a is fixed on the left end cover 3. So that the hand wheel housing 6 can rotate in the left end cap 3 without changing the axial position, so that when the hand wheel housing 6 rotates, the axial position of the piston 4 can be adjusted by the screw housing 5.

A plurality of through-flow through holes 9a1 which are axially communicated are distributed on the circumference of the convex ring 9a of the injection body, a plurality of injection holes are uniformly distributed on the left end surface of the combined injection body 9, and the root parts of the injection holes are respectively communicated with the central hole 9b of the injection body through injection radial channels. The through-flow holes 9a1 allow the fluid to cross the convex ring 9a of the jet body to reach the annular channel on the periphery of the combined jet body 9, and the fluid entering the central hole 9b of the jet body can enter each jet hole through the radial jet channel, so that the end surface of the combined jet body 9 also generates jet flow.

The spraying holes are arranged on the left end face of the combined spraying body 9 in an inner ring and an outer ring, the root parts of the spraying holes 9c of the inner ring are communicated with a central hole 9b of the spraying body through spraying radial short channels 9d respectively, the root parts of the spraying holes 9e of the outer ring are communicated with the central hole 9b of the spraying body through spraying radial long channels 9f respectively, and the spraying radial long channels 9f are positioned on the right side of the spraying radial short channels 9d. When the right end head of the screw shaft 7 is inserted into the left port of the jet body center hole 9b, the fluid entering the jet body center hole 9b from the right end enters each outer ring jet hole 9e through the jet radial long channel 9f to be jetted, and enters each inner ring jet hole 9c through the jet radial short channel 9d to be jetted, and the jet radial long channel and the jet radial short channel are added to the annular gap channel on the periphery to be jetted, so that the third cavitation mode of the combined jet body 9 is realized. When the right end of the screw shaft 7 is inserted rightwards continuously to seal the liquid inlet holes of the radial short channels 9d, the fluid entering the central hole 9b of the injection body from the right end enters the injection holes 9e of the outer ring through the radial long channels 9f for injection, and the annular gap channels on the periphery are used for injection, so that the fourth cavitation mode of the combined injection body 9 is realized.

A valve rod 15 is inserted in the center of the right end cover 13, a valve rod hand wheel 16 is arranged at the right end of the valve rod 15, the left end of the valve rod 15 is inserted into the inner cavity of the small cylinder body 2 and is provided with a valve body 14, the valve body 14 is in a step shape with a thin left end and a thick right end, and the periphery of the left end of the valve body 14 is provided with a valve body conical surface which can be inserted into the right port of the central. The valve rod 15 is rotated by the valve rod hand wheel 16, so that the valve body conical surface at the left end of the valve body 14 is close to the right port of the central hole 9b of the jet body, the inlet section entering the central hole 9b of the jet body can be adjusted, the flow of central jet flow is changed, and the fifth cavitation mode of the combined jet body 9 is realized.

A valve core 14a is screwed along the axial line of the valve body, the valve core 14a is provided with a through valve core central hole, and a plurality of valve body overflowing holes 14b are uniformly distributed on the circumference of the large-diameter section of the valve body and communicated with the valve core central hole. When the right end of the screw shaft 7 is separated from the central hole 9b of the injection body, the small diameter section of the left end of the valve body 14 is completely inserted into the central hole 9b of the injection body to seal the same, fluid enters the central hole of the valve core through the valve body overflowing hole 14b on the circumference of the large diameter section of the valve body and flows out from the central hole of the valve core, and the hole diameter of the central hole of the valve core is far smaller than that of the central hole 9b of the injection body, so that the sixth cavitation mode of the combined injection body 9 is. The valve core 14a is connected with the valve body by screw threads, so that the valve core is convenient to replace, and the size of the central hole of the valve core can be conveniently adjusted.

In conclusion, because the utility model discloses a multiple cavitation mode can be realized to combined cavitator to can also adjust the velocity of flow of department such as annular space passageway under various cavitation modes, allow the change of supplied materials flow big, through selecting the cavitation module and adding the required cavitation intensity of change fluid overflow cross-sectional area and satisfy the reaction.

The annular space cavitation, the central single hole or the combined cavitation can be selected according to the existence of particles and the particle size of raw materials or additives (such as chemical agents and catalysts), the size of the annular space with the same flow area is far smaller than the diameter of the small hole, and the requirements of diversification of the raw materials can be met.

Aiming at the analysis of the emulsification sensitivity of the cavitation process to the raw materials, different cavitation modes are selected, and the cavitation process is perfected and smoothly carried out by comprehensively considering the cavitation intensity, the bubble distribution, the collision probability and the impact intensity of bubbles and the wall surface and the like.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments, for example, the up-down direction and the left-right direction may be interchanged. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention. The undescribed technical features of the present invention can be realized by or using the prior art, and are not described herein again.

Claims (10)

1. The utility model provides a combined cavitator that can adjust on line, is including being the big cylinder body and the little cylinder body that step form is even as an organic whole and coaxial, and little cylinder body is located the right side of big cylinder body and both inner chambers link up each other, the left end mouth of big cylinder body covers there is the left end lid, the right-hand member mouth of little cylinder body covers there is right end lid, its characterized in that: the right end of the circumferential wall of the small cylinder body is connected with a fluid inlet, the middle section of the circumferential wall of the large cylinder body is connected with a fluid outlet, the left side of the fluid inlet is provided with a combined injection body, the right end of the combined injection body is provided with an injection body convex ring which is axially hollowed, the left side of the injection body convex ring is abutted against the step of the central hole of the small cylinder body, the right side of the injection body convex ring is provided with a fixing nut, the fixing nut is screwed on the inner wall of the small cylinder body, and the left end of the combined injection body is provided with an injection body outer conical; the inner wall of the small cylinder body center hole is provided with a sliding ring, the right side of the sliding ring is provided with a cutoff ring, the inner wall of the cutoff ring is provided with a cutoff ring inner conical surface, and an annular gap channel is formed between the cutoff ring inner conical surface and the jet body outer conical surface.

2. The on-line adjustable combined cavitator of claim 1, wherein: a piston supported on the inner wall of the large cylinder body is arranged on the left side of the fluid outlet, the center of the left end of the piston is connected with a screw rod sleeve, the screw rod sleeve is screwed in a hand wheel sleeve, the hand wheel sleeve is rotatably arranged at the center of the left end cover, and the left end of the hand wheel sleeve is connected with a large hand wheel; the right end of the piston is connected with the slip ring through a supporting rib extending to the right.

3. The on-line adjustable combined cavitator of claim 2, wherein: the piston is characterized in that a piston boss is arranged at the center of the right end face of the piston, a supporting rib flange is sleeved on the periphery of the piston boss and fixedly connected with the piston through screws, and the supporting ribs are symmetrically connected to the supporting rib flange.

4. The on-line adjustable combined cavitator of claim 2, wherein: the combined injection body is provided with an injection body center hole which is communicated along the axis, a screw rod shaft is screwed in the screw rod sleeve, a small hand wheel is installed at the left end of the screw rod shaft, and a right-end polished rod section of the screw rod shaft penetrates through the center hole of the piston to be inserted into the injection body center hole.

5. The on-line adjustable combined cavitator of claim 4, wherein: a piston stuffing box is arranged in the central area of the piston, piston stuffing is filled in the piston stuffing box, and the piston stuffing surrounds the periphery of the screw shaft; the left side of the piston stuffing box is provided with a disc spring for compressing the piston stuffing, the left side of the disc spring is provided with a piston gland, the piston gland is fixed on the piston through a screw, and the right end of the screw sleeve is connected with the piston gland.

6. The on-line adjustable combined cavitator of claim 4, wherein: the periphery of the hand wheel sleeve is installed at the center of the left end cover through a bearing, the right side of the bearing is sealed with the left end cover through a left end cover sealing ring, a bearing gland is arranged on the left side of the bearing, and the bearing gland is fixed on the left end cover.

7. The on-line adjustable combined cavitator of claim 4, wherein: the circumference of the convex ring of the jet body is distributed with a plurality of through holes which are axially communicated, the left end surface of the combined jet body is uniformly distributed with a plurality of jet holes, and the root of each jet hole is communicated with the central hole of the jet body through a radial jet channel.

8. The on-line adjustable combined cavitator of claim 7, wherein: the spray holes are arranged in an inner ring and an outer ring on the left end face of the combined spray body, the roots of the spray holes in the inner ring are communicated with the central hole of the spray body through radial short spray passages respectively, the roots of the spray holes in the outer ring are communicated with the central hole of the spray body through radial long spray passages respectively, and the radial long spray passages are located on the right side of the radial short spray passages.

9. The on-line adjustable combined cavitator of claim 8, wherein: the left end of the valve rod is inserted into the inner cavity of the small cylinder body and is provided with a valve body, the valve body is in a step shape with a thin left end and a thick right end, and the periphery of the left end of the valve body is provided with a valve body conical surface capable of being inserted into the right port of the central hole of the injection body.

10. The on-line adjustable combined cavitator of claim 9, wherein: the valve core is screwed along the axial line of the valve body, the valve core is provided with a through valve core central hole, and a plurality of valve body overflowing holes are uniformly distributed on the circumference of the large-diameter section of the valve body and communicated with the valve core central hole.

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