CN216381341U - Novel adjustable erosion-resistant double-cage-sleeve oil nozzle - Google Patents
Novel adjustable erosion-resistant double-cage-sleeve oil nozzle Download PDFInfo
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- CN216381341U CN216381341U CN202123223946.9U CN202123223946U CN216381341U CN 216381341 U CN216381341 U CN 216381341U CN 202123223946 U CN202123223946 U CN 202123223946U CN 216381341 U CN216381341 U CN 216381341U
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Abstract
The utility model discloses an adjustable and erosion-resistant novel double-cage oil nozzle, which comprises an oil nozzle seat, an oil nozzle, an outer cage, a shell, an inner cage, a positioning sleeve and an end cover, wherein the double-cage structure is adopted, namely the outer cage and the inner cage, so that an entering high-pressure high-speed fluid medium firstly acts on the outer cylindrical surface of the outer cage, the direct action of the high-pressure high-speed fluid medium on key parts such as the outer cylindrical surface of the oil nozzle, a throttling through hole and the like is avoided, and the erosion problem of the oil nozzle is favorably improved; and the flow velocity and the flow direction of the high-pressure high-speed fluid medium are interfered forcibly, so that a relatively stable and ideal flow field and pressure field can be formed between the outer cylindrical surface of the oil nozzle and the inner cylindrical surface of the outer cage sleeve, and particularly, after the fluid is subjected to opposite flushing, the flow direction of the fluid acts on the outer cylindrical surface of the oil nozzle at a relatively small incident angle, so that the influence of the flushing on the oil nozzle is further reduced.
Description
Technical Field
The utility model belongs to the technical field of petroleum and natural gas equipment, and particularly relates to an adjustable novel erosion-resistant double-cage sleeve oil nozzle.
Background
In the exploitation process of shale gas, throttling control needs to be carried out through an oil nozzle. At present, a fixed-aperture oil nozzle structure is generally adopted in China, automatic adjustment cannot be achieved in the using process, manual disassembly and replacement are needed, and the automation degree is low; in order to facilitate accurate regulation and control, the automatic adjustable oil nozzle driven by a hydraulic or electric mechanism is adopted abroad, and the opening of the oil nozzle is automatically controlled according to a pressure signal acquired by a sensor, so that the oil gas yield is obviously improved. However, both fixed nozzles and adjustable nozzles have different erosion problems, resulting in the failure of nozzle closure and shortened service life. Therefore, the research and development of the adjustable erosion-resistant oil nozzle is significant by optimally designing the structure of the oil nozzle.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an adjustable novel erosion-resistant double-cage oil nozzle.
In order to solve the technical problem, the technical scheme of the utility model is as follows: an adjustable novel erosion-resistant double-cage oil nozzle comprises an oil nozzle seat, an oil nozzle, an outer cage, a shell, an inner cage, a positioning sleeve and an end cover, wherein the shell is provided with an axial through hole and a radial hole, the oil nozzle seat is sleeved and fixed at the lower side in the axial through hole of the shell, the outer wall of the lower side of the oil nozzle is in interference fit with the inner hole of the oil nozzle seat, the inner wall of the lower side of the inner cage is in clearance fit with the outer wall of the upper side of the oil nozzle, a reserved space is arranged between the lower end of the inner cage and the upper end of the oil nozzle seat, the circumferential direction of the oil nozzle is provided with the through hole, the upper end of the inner cage sequentially penetrates through the positioning sleeve and the end cover, the middle outer wall of the inner cage is in clearance fit with the inner hole of the positioning sleeve, the outer wall of the upper side of the inner cage is in key connection with the inner hole of the end cover, the outer cage is arranged at the intersection of the axial through hole and the radial hole, the inner wall of the outer cage is in clearance fit with the outer wall of the inner cage, the circumferential direction of the outer cage is provided with the through hole, the through-hole of outer cage is corresponding with the through-hole distribution position of glib talker, the end cover is fixed at the axial through-hole of casing and is kept away from a terminal surface of glib talker seat, and the position sleeve is spacing in the space that the hole of end cover and the axial through-hole of casing formed, and the lower terminal surface of position sleeve cooperates with the up end of outer cage, and the position sleeve compresses tightly outer cage at glib talker seat up end, and the inner bore axis coincidence of glib talker seat, glib talker, outer cage, interior cage, position sleeve and end cover.
Preferably, the radial hole is arranged at the middle position of the shell, the end face of the radial hole is welded with the flange, a gas releasing nozzle is arranged on one side wall of the intersection of the axial through hole and the radial hole of the shell, the flange is connected with the pressure end and is a medium inlet, and one end of the axial through hole, which is close to the oil nozzle seat, is connected with a downstream pipeline and is a medium outlet.
Preferably, interior cage cover comprises cage cover part and pole portion, the tip coaxial coupling of cage cover part and pole portion, the inner wall of cage cover part and the outer wall clearance fit of glib talker, and its fit clearance is 0.2mm, and the outer wall of cage cover part and the inner wall clearance fit of outer cage cover, and its fit clearance is 0.5mm, the hole of position sleeve and end cover is passed in proper order to pole portion, pole portion and position sleeve clearance fit, the pole portion upside is provided with the screw thread, and the pole portion outer wall is provided with the keyway, and the end cover inner wall is equipped with the keyway, and the keyway of end cover sets up into the strip along the axial of end cover, and the parallel key cooperation is installed in the keyway of end cover and the keyway of pole portion, and the external electric machanism of tip of cage cover part is kept away from to pole portion, and interior cage cover reciprocates in the reservation space along the glib talker axis under electric machanism's drive for change the flow area of glib thru hole.
Preferably, a first sealing ring and a first clamping spring are arranged between the outer wall of the lower side of the oil nozzle seat and the inner wall of the shell, a second sealing ring and a second clamping spring are arranged between the outer wall of the lower side of the rod part of the inner cage and the inner wall of the lower side of the positioning sleeve, and a third sealing ring and a third clamping spring are arranged between the outer wall of the middle part of the rod part of the inner cage and the inner wall of the upper side of the positioning sleeve.
Preferably, the upper end face of the shell is fixedly connected with the lower end face of the end cover through a bolt, and the inner step of the end cover is positioned with the upper end face of the positioning sleeve through a positioning pin.
Preferably, the glib talker is cylinder type axial trompil spare, has seted up the throttle through-hole on the upside face of cylinder of glib talker, and the trompil axis of throttle through-hole arranges in pairs along glib axisymmetric plane, and the throttle through-hole has arranged 8 pairs along the face of cylinder altogether, and the axis of two adjacent pairs of throttle through-holes is 90 contained angles, and the downside hole of glib talker is the round platform shape, and the diameter that throttle through-hole one end was kept away from to the downside hole of glib talker is big.
Preferably, the throttling through holes comprise large through holes and small through holes, the throttling through holes are arranged in a spiral mode on the cylindrical surface of the oil nozzle, the throttling through holes are arranged in a spiral mode of sequentially forming the small through holes, the large through holes, the small through holes and the small through holes from bottom to top, and the vertical distance between the centers of the two adjacent throttling through holes is equal to the radius of the large through holes.
Preferably, the upper end surface of the outer cage sleeve is provided with a limiting tooth, the lower end surface of the positioning sleeve is provided with a groove, and the limiting tooth is matched with the groove.
Preferably, outer cage is cylinder type axial trompil spare, has seted up outer cage through-hole on the face of cylinder of outer cage, and outer cage through-hole is "well" style of calligraphy and arranges, and outer cage through-hole sets up four layers on the face of cylinder along outer cage axis direction, and the position of outer cage through-hole is about outer cage axis symmetry, and outer cage through-hole forms 8 groups along outer cage axis direction, and the axis of adjacent two sets of outer cage through-holes is 90 contained angles, and the trompil axis and the radial hole axis mutually perpendicular of the outer cage through-hole that is close to radial hole one side perhaps are not in same straight line.
Compared with the prior art, the utility model has the advantages that:
(1) the double-cage structure, namely the outer cage and the inner cage, is adopted, so that the entered high-pressure high-speed fluid medium firstly acts on the outer cylindrical surface of the outer cage, the direct action of the high-pressure high-speed fluid medium on key parts such as the outer cylindrical surface of the oil nozzle, a throttling through hole and the like is avoided, and the erosion problem of the oil nozzle is favorably improved;
(2) the through holes on the outer cage sleeve are distributed in a 'well' shape, the near end far away from the radial holes is ensured, the axes of the through holes on the outer cage sleeve and the axes of the radial holes are mutually vertical or are not in the same straight line, and a relatively stable and ideal flow field and pressure field can be formed between the outer cylindrical surface of the oil nozzle and the inner cylindrical surface of the outer cage sleeve by forcibly intervening the flow velocity and the flow direction of a high-pressure high-speed fluid medium, particularly after the fluid is flushed, the flow direction acts on the outer cylindrical surface of the oil nozzle at a relatively small incident angle, so that the influence of erosion on the oil nozzle is further reduced;
(3) the oil nozzle adopts the structure form of combining the sizes of the small-large-small through holes with the spiral arrangement, can effectively improve the control precision of the oil nozzle in the large through holes and the small through holes, is favorable for improving the yield and the reliability and the stability;
(4) the inner cage sleeve is driven by the electric mechanism to move up and down along the axis of the oil nozzle, the flow area of the throttling through hole is changed, the flow of a high-pressure high-speed fluid medium is controlled, the throttling control of the inner cage sleeve by the outer cage sleeve can play a role in protection, and the outer cage sleeve is simple in structure, easy to install and replace and good in economical efficiency.
Drawings
FIG. 1 is a schematic sectional view of an adjustable erosion-resistant dual-cage oil nozzle according to the present invention;
FIG. 2 is an exploded view of an adjustable erosion-resistant dual-cage oil nozzle according to the present invention;
FIG. 3 is a schematic view of an initial state of an adjustable erosion-resistant dual-cage oil nozzle according to the present invention;
FIG. 4 is a schematic view of the working state of the novel adjustable erosion-resistant double-cage oil nozzle of the present invention;
FIG. 5 is a schematic top view cross-sectional structural view of a novel adjustable erosion-resistant dual-cage oil nozzle according to the present invention;
FIG. 6 is a schematic view of a nozzle tip structure of an adjustable erosion-resistant novel double-cage nozzle tip according to the present invention;
FIG. 7 is a circumferential expansion distribution diagram of throttling through holes of an adjustable erosion-resistant novel double-cage oil nozzle according to the present invention;
FIG. 8 is a schematic view of a front cross-sectional structure of an outer cage of the adjustable erosion-resistant novel double-cage oil nozzle of the present invention;
FIG. 9 is a schematic top sectional view of an outer cage of the adjustable erosion-resistant dual-cage nozzle tip according to the present invention.
Description of reference numerals:
1. the sealing ring, 2, an oil nozzle seat, 3, an oil nozzle, 4, an outer cage, 5, an air release nozzle, 6, a shell, 7, an inner cage, 8, a second snap spring, 9, a second sealing ring, 10, a positioning sleeve, 11, a third snap spring, 12, an end cover, 13, a flat key, 14, a third sealing ring, 15, a bolt, 16, a positioning pin, 17, a flange, 18 and a first snap spring;
3-1, throttling through holes, 3-2 and spiral lines;
4-1, an outer cage sleeve through hole, 4-2 and a limiting tooth;
6-1, axial through holes, 6-2 and radial holes;
7-1, a cage sleeve part, 7-2 and a rod part.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
it should be noted that the structures, proportions, sizes, and other elements shown in the specification are included for the purpose of understanding and reading only, and are not intended to limit the scope of the utility model, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example 1
As shown in figures 1-4, the utility model discloses an adjustable novel erosion-resistant double-cage oil nozzle, which comprises an oil nozzle seat 2, an oil nozzle 3, an outer cage 4, a shell 6, an inner cage 7, a positioning sleeve 10 and an end cover 12, wherein the shell 6 is provided with an axial through hole 6-1 and a radial hole 6-2, the oil nozzle seat 2 is sleeved and fixed at the middle lower side of the axial through hole 6-1 of the shell 6, the outer wall of the lower side of the oil nozzle 3 is in interference fit with an inner hole of the oil nozzle seat 2, the inner wall of the lower side of the inner cage 7 is in clearance fit with the outer wall of the upper side of the oil nozzle 3, a reserved space is arranged between the lower end of the inner cage 7 and the upper end of the oil nozzle seat 2, the through hole is arranged in the circumferential direction of the oil nozzle 3, the upper end of the inner cage 7 sequentially passes through the positioning sleeve 10 and the end cover 12, the middle outer wall of the inner cage 7 is in clearance fit with the inner hole of the positioning sleeve 10, the outer wall of the inner cage 7 is in key connection with the end cover 12, the outer cage sleeve 4 is arranged at the intersection of the axial through hole 6-1 and the radial hole 6-2, the inner wall of the outer cage sleeve 4 is in clearance fit with the outer wall of the inner cage sleeve 7, through holes are formed in the circumferential direction of the outer cage sleeve 4, the through holes of the outer cage sleeve 4 correspond to the through hole distribution positions of the oil nozzle 3, the end cover 12 is fixed on one end face, away from the oil nozzle base 2, of the axial through hole 6-1 of the shell 6, the positioning sleeve 10 is limited in a space formed by the inner hole of the end cover 12 and the axial through hole 6-1 of the shell 6, the lower end face of the positioning sleeve 10 is matched with the upper end face of the outer cage sleeve 4, the outer cage sleeve 4 is tightly pressed on the upper end face of the oil nozzle base 2 by the positioning sleeve 10, and the axes of the oil nozzle base 2, the oil nozzle 3, the outer cage sleeve 4, the inner cage sleeve 7, the positioning sleeve 10 and the end cover 12 coincide.
The oil nozzle seat 2 is fixedly connected with the shell 6 through threads.
Example 2
As shown in fig. 1, preferably, the radial hole 6-2 is disposed at a middle position of the housing 6, an end surface of the radial hole 6-2 is welded to a flange 17, a side wall of an intersection of the axial through hole 6-1 of the housing 6 and the radial hole 6-2 is provided with a bleeding nozzle 5, the flange 17 is connected to a pressure end and is a medium inlet, and one end of the axial through hole 6-1, which is close to the oil nozzle seat 2, is connected to a downstream pipeline and is a medium outlet.
The axial through hole 6-1 and the radial hole 6-2 are perpendicular to each other, the axial through hole 6-1 is communicated along the axial direction of the shell 6, the radial hole 6-2 is communicated along one radial end of the shell 6, and the other end of the radial hole is not communicated.
And reinforcing layers are arranged on the inner walls of the axial through hole 6-1 and the radial hole 6-2.
Example 3
As shown in fig. 2, preferably, the inner cage 7 is composed of a cage part 7-1 and a rod part 7-2, the ends of the cage part 7-1 and the rod part 7-2 are coaxially connected, the inner wall of the cage part 7-1 is in clearance fit with the outer wall of the oil nozzle 3, the fit clearance is 0.2mm, the outer wall of the cage part 7-1 is in clearance fit with the inner wall of the outer cage 4, the fit clearance is 0.5mm, the rod part 7-2 sequentially passes through the inner holes of the positioning sleeve 10 and the end cover 12, the rod part 7-2 is in clearance fit with the positioning sleeve 10, the upper side of the rod part 7-2 is provided with a thread, the outer wall of the rod part 7-2 is provided with a key groove, the inner wall of the end cover 12 is provided with a key groove, the key groove of the end cover 12 is arranged in a strip shape along the axial direction of the end cover 12, the flat key 13 is fittingly installed in the key groove of the end cover 12 and the key groove of the rod part 7-2, the end part of the rod part 7-2, which is far away from the cage sleeve part 7-1, is externally connected with an electric mechanism, and the inner cage sleeve 7 moves up and down in the reserved space along the axis of the oil nozzle 3 under the driving of the electric mechanism and is used for changing the flow area of the through hole of the oil nozzle 3.
The screw thread arranged on the upper side of the rod part 7-2 is in threaded connection with the electric mechanism.
The cage sleeve part 7-1 is a cylindrical hole piece, and the inner wall and the outer wall of the cage sleeve part 7-1 are in clearance fit with the oil nozzle 3 and the outer cage sleeve 4 respectively.
Example 4
As shown in fig. 1 to 2, preferably, a first sealing ring 1 and a first snap spring 18 are arranged between the outer wall of the lower side of the oil nozzle seat 2 and the inner wall of the housing 6, a second sealing ring 9 and a second snap spring 8 are arranged between the outer wall of the lower side of the rod portion 7-2 of the inner cage 7 and the inner wall of the lower side of the positioning sleeve 10, and a third sealing ring 14 and a third snap spring 11 are arranged between the outer wall of the middle portion of the rod portion 7-2 of the inner cage 7 and the inner wall of the upper side of the positioning sleeve 10.
The sealing ring and the clamp spring are used for limiting sealing and sealing elements, so that a medium is prevented from flowing out from a gap between the oil nozzle seat 2 and the shell 6, and the medium is prevented from flowing out from a gap between the inner cage sleeve 7 and the positioning sleeve 10.
Preferably, the upper end surface of the housing 6 is fixedly connected with the lower end surface of the end cover 12 through a bolt 15, and the inner step of the end cover 12 is positioned with the upper end surface of the positioning sleeve 10 through a positioning pin 16.
Example 5
As shown in fig. 6, preferably, the oil nipple 3 is a cylindrical axial hole-opening member, the cylindrical surface of the upper side of the oil nipple 3 is provided with throttle through holes 3-1, the hole-opening axes of the throttle through holes 3-1 are arranged in pairs along the axial symmetry plane of the oil nipple 3, the throttle through holes 3-1 are arranged in 8 pairs along the cylindrical surface, the axes of two adjacent pairs of throttle through holes 3-1 form an included angle of 90 degrees, the lower side inner hole of the oil nipple 3 is in a circular truncated cone shape, and the diameter of the lower side inner hole of the oil nipple 3, which is far away from one end of the throttle through hole 3-1, is large.
Preferably, the throttling through holes 3-1 comprise large through holes and small through holes, the throttling through holes 3-1 are arranged on the cylindrical surface of the oil nozzle 3 in a spiral mode, the throttling through holes 3-1 are arranged in a spiral mode of sequentially forming the small through holes, the large through holes, the small through holes and the small through holes from bottom to top, and the vertical distance between the centers of every two adjacent throttling through holes 3-1 is equal to the radius of the large through holes.
As shown in fig. 6 and 7, the throttling through-holes 3-1 are distributed along the spiral line 3-2.
As shown in fig. 7, the diameter of the through hole on the outer cylindrical surface of the oil nozzle 3 is 3mm, 3mm, 4mm, 13mm, 13mm, 4mm, 3mm, 3mm in turn from bottom to top, and the vertical distance between the centers of two adjacent holes is equal to the radius of the large through hole.
Example 6
As shown in fig. 8 and 9, preferably, the upper end surface of the outer cage 4 is provided with a limiting tooth 4-2, the lower end surface of the positioning sleeve 10 is provided with a groove, and the limiting tooth 4-2 is matched with the groove.
As shown in fig. 9, preferably, the outer cage 4 is a cylindrical axial hole-opening member, the cylindrical surface of the outer cage 4 is provided with outer cage through holes 4-1, the outer cage through holes 4-1 are arranged in a shape of a Chinese character jing, the outer cage through holes 4-1 are arranged in four layers on the cylindrical surface along the axial direction of the outer cage 4, the positions of the outer cage through holes 4-1 are symmetrical with respect to the axial line of the outer cage 4, the outer cage through holes 4-1 form 8 groups along the axial direction of the outer cage 4, the axial lines of the two adjacent groups of outer cage through holes 4-1 form an included angle of 90 degrees, and the hole axis of the outer cage through hole 4-1 near one side of the radial hole 6-2 is perpendicular to the axial line of the radial hole 6-2 or is not in the same straight line.
The diameter of the through holes on the cylindrical surface of the outer cage 4 is 4mm at the near end of the inlet 6-2 away from the radial hole, and the diameter of the through holes is 8, and the diameter of the through holes is 6mm at the far end of the inlet 6-2 away from the radial hole.
Preferably, the use method of the adjustable novel erosion-resistant double-cage oil nozzle comprises the following steps:
step 1: connecting the radial hole 6-2 with a pressure end, connecting one end of the axial through hole 6-1 far away from the end cover 12 with a downstream pipeline, and connecting the upper end of the inner cage 7 with an electric mechanism;
step 2: high-pressure high-speed fluid medium enters the radial hole 6-2 from the pressure end, enters a reserved space among the oil nozzle 3, the outer cage 4 and the inner cage 7 through the through hole on the outer cage 4, enters an inner hole of the oil nozzle 3 through the through hole on the oil nozzle 3, and flows out to a downstream pipeline through the axial through hole 6-1;
and step 3: the inner cage 7 moves up and down along the axis of the oil nozzle 3 under the driving of the electric mechanism, changes the flow area of the through hole of the oil nozzle 3 and controls the flow of the high-pressure high-speed fluid medium.
The working principle of the utility model is as follows:
as shown in fig. 1-4, the utility model provides a novel adjustable and erosion-resistant double-cage oil nozzle, which is composed of an oil nozzle seat 2, an oil nozzle 3, an outer cage 4, a shell 6, an inner cage 7, a positioning sleeve 10 and an end cover 12, wherein the double-cage structure is adopted, so that an entering high-pressure high-speed fluid medium firstly acts on the outer cylindrical surface of the outer cage 4, the direct action of the high-pressure high-speed fluid medium on the outer cylindrical surface of the oil nozzle 3, a throttling through hole and other key parts is avoided, the flow velocity and the flow direction of the high-pressure high-speed fluid medium are forcibly interfered, a relatively stable and ideal flow field and pressure field can be formed between the outer cylindrical surface of the oil nozzle 3 and the inner cylindrical surface of the outer cage 4, and the influence of erosion on the oil nozzle is reduced; meanwhile, the oil nozzle adopts the structure of combining the size of the small-large-small through holes with the spiral arrangement, so that the control precision of the oil nozzle in the large through holes and the small through holes can be effectively improved, the yield is favorably improved, and the reliability and the stability are improved.
The through holes on the outer cage sleeve are distributed in a 'well' shape, the near end far away from the radial holes is ensured, the axes of the through holes on the outer cage sleeve and the axes of the radial holes are mutually vertical or are not in the same straight line, and a relatively stable and ideal flow field and pressure field can be formed between the outer cylindrical surface of the oil nozzle and the inner cylindrical surface of the outer cage sleeve by forcibly intervening the flow velocity and the flow direction of a high-pressure high-speed fluid medium, particularly after the fluid is flushed, the flow direction of the fluid acts on the outer cylindrical surface of the oil nozzle at a relatively small incident angle, so that the influence of erosion on the oil nozzle is further reduced.
The inner cage sleeve is driven by the electric mechanism to move up and down along the axis of the oil nozzle, the flow area of the throttling through hole is changed, the flow of a high-pressure high-speed fluid medium is controlled, the throttling control of the inner cage sleeve by the outer cage sleeve can play a role in protection, and the outer cage sleeve is simple in structure, easy to install and replace and good in economical efficiency.
When in use:
a flange 17 is connected with a pressure end, an axial through hole 6-1 is connected with a downstream pipeline, and a rod part 7-2 at the upper part of an inner cage 7 is connected with an electric mechanism.
As shown in fig. 3, in the initial state of the dual-cage oil nozzle, the inner cage 7 falls down to contact with the oil nozzle seat 2, the reserved space between the outer cage 4 and the oil nozzle 3 is compressed to the minimum, and the through holes on the outer cage 4 and the oil nozzle 3 are not communicated.
As shown in fig. 4, in the working state of the double-cage oil nozzle, the inner cage 7 leaves the oil nozzle base 2 and rises to the maximum position, the reserved space between the outer cage 4 and the oil nozzle 3 is enlarged to the maximum, and the outer cage 4 is communicated with the through hole on the oil nozzle 3.
As shown in fig. 5, a high-pressure high-speed fluid medium enters the radial hole 6-2 from the pressure end and collides with the outer wall of the outer cage sleeve 4 in the front to avoid erosion of the oil nozzle due to too large pressure, then enters a reserved space among the oil nozzle 3, the outer cage sleeve 4 and the inner cage sleeve 7 through a through hole in the outer cage sleeve 4 beside a bypass, enters an inner hole of the oil nozzle 3 through a through hole in the oil nozzle 3, and flows out to a downstream pipeline through the axial through hole 6-1; the inner cage 7 moves up and down along the axis of the oil nozzle 3 under the driving of the electric mechanism, changes the flow area of the through hole of the oil nozzle 3 and controls the flow of the high-pressure high-speed fluid medium.
The utility model has the advantages of improving the erosion problem of the oil nozzle in the prior art, optimizing regulation and control, improving reliability and stability and promoting economic benefit.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the utility model. It is to be understood that the utility model is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (9)
1. The utility model provides a novel two cage cover glib talkers with adjustable, resistant erosion, its characterized in that: comprises an oil nozzle seat (2), an oil nozzle (3), an outer cage sleeve (4), a shell (6), an inner cage sleeve (7), a positioning sleeve (10) and an end cover (12), wherein the shell (6) is provided with an axial through hole (6-1) and a radial hole (6-2), the oil nozzle seat (2) is sleeved and fixed at the lower side in the axial through hole (6-1) of the shell (6), the outer wall of the lower side of the oil nozzle (3) is in interference fit with the inner hole of the oil nozzle seat (2), the inner wall of the lower side of the inner cage sleeve (7) is in clearance fit with the outer wall of the upper side of the oil nozzle (3), a reserved space is arranged between the lower end of the inner cage sleeve (7) and the upper end of the oil nozzle seat (2), the through hole is arranged in the circumferential direction of the oil nozzle (3), the upper end of the inner cage sleeve (7) sequentially penetrates through the positioning sleeve (10) and the end cover (12), and the inner wall of the inner cage sleeve (7) is in clearance fit with the positioning sleeve (10), the inner cage sleeve is characterized in that the outer wall of the upper side of the inner cage sleeve (7) is in key connection with the inner hole of the end cover (12), the outer cage sleeve (4) is arranged at the intersection of the axial through hole (6-1) and the radial hole (6-2), the inner wall of the outer cage sleeve (4) is in clearance fit with the outer wall of the inner cage sleeve (7), through holes are formed in the circumferential direction of the outer cage sleeve (4), the through holes of the outer cage sleeve (4) correspond to the distribution positions of the through holes of the oil nozzle (3), the end cover (12) is fixed on one end face, far away from the oil nozzle seat (2), of the axial through hole (6-1) of the shell (6), the positioning sleeve (10) is limited in a space formed by the inner hole of the end cover (12) and the axial through hole (6-1) of the shell (6), the lower end face of the positioning sleeve (10) is matched with the upper end face of the outer cage sleeve (4), the positioning sleeve (10) compresses the outer cage sleeve (4) on the upper end face of the oil nozzle seat (2), the axes of inner holes of the oil nozzle seat (2), the oil nozzle (3), the outer cage sleeve (4), the inner cage sleeve (7), the positioning sleeve (10) and the end cover (12) are overlapped.
2. The adjustable novel erosion-resistant double-cage oil nozzle as claimed in claim 1, wherein: radial hole (6-2) set up in casing (6) middle part position, and the terminal surface and the flange (17) welding of radial hole (6-2), axial through hole (6-1) and the radial hole (6-2) of casing (6) intersect a lateral wall of department and be provided with air release mouth (5), pressure end is connected in flange (17), and for the medium entry, the one end that axial through hole (6-1) is close to nozzle seat (2) is connected the low reaches pipeline, is the medium export.
3. The adjustable novel erosion-resistant double-cage oil nozzle as claimed in claim 1, wherein: the inner cage sleeve (7) is composed of a cage sleeve part (7-1) and a rod part (7-2), the end parts of the cage sleeve part (7-1) and the rod part (7-2) are coaxially connected, the inner wall of the cage sleeve part (7-1) is in clearance fit with the outer wall of the oil nozzle (3), the fit clearance is 0.2mm, the outer wall of the cage sleeve part (7-1) is in clearance fit with the inner wall of the outer cage sleeve (4), the fit clearance is 0.5mm, the rod part (7-2) sequentially penetrates through inner holes of the positioning sleeve (10) and the end cover (12), the rod part (7-2) is in clearance fit with the positioning sleeve (10), the upper side of the rod part (7-2) is provided with threads, the outer wall of the rod part (7-2) is provided with a key groove, the inner wall of the end cover (12) is provided with a key groove, the key groove of the end cover (12) is arranged into a strip shape along the axial direction of the end cover (12), the flat key (13) is installed in a key groove of the end cover (12) and a key groove of the rod part (7-2) in a matched mode, the end part, far away from the cage sleeve part (7-1), of the rod part (7-2) is externally connected with an electric mechanism, and the inner cage sleeve (7) moves up and down in a reserved space along the axis of the oil nozzle (3) under the driving of the electric mechanism and is used for changing the flow area of a through hole of the oil nozzle (3).
4. The adjustable novel erosion-resistant double-cage oil nozzle as claimed in claim 3, wherein: a first sealing ring (1) and a first clamping spring (18) are arranged between the outer wall of the lower side of the oil nozzle seat (2) and the inner wall of the shell (6), a second sealing ring (9) and a second clamping spring (8) are arranged between the outer wall of the lower side of the rod portion (7-2) of the inner cage sleeve (7) and the inner wall of the lower side of the positioning sleeve (10), and a third sealing ring (14) and a third clamping spring (11) are arranged between the outer wall of the middle portion of the rod portion (7-2) of the inner cage sleeve (7) and the inner wall of the upper side of the positioning sleeve (10).
5. The adjustable novel erosion-resistant double-cage oil nozzle as claimed in claim 1, wherein: the upper end face of the shell (6) is fixedly connected with the lower end face of the end cover (12) through a bolt (15), and the inner step of the end cover (12) is positioned with the upper end face of the positioning sleeve (10) through a positioning pin (16).
6. The adjustable novel erosion-resistant double-cage oil nozzle as claimed in claim 1, wherein: the oil nozzle (3) is a cylindrical axial hole-opening piece, throttling through holes (3-1) are formed in the upper side cylindrical surface of the oil nozzle (3), the hole-opening axes of the throttling through holes (3-1) are arranged in pairs along the axial symmetry plane of the oil nozzle (3), the throttling through holes (3-1) are arranged in 8 pairs along the cylindrical surface, the axes of two adjacent pairs of throttling through holes (3-1) form an included angle of 90 degrees, the lower side inner hole of the oil nozzle (3) is in a circular truncated cone shape, and the diameter of one end, away from the throttling through holes (3-1), of the lower side inner hole of the oil nozzle (3) is large.
7. The adjustable novel erosion-resistant double-cage oil nozzle as claimed in claim 6, wherein: the throttling through holes (3-1) comprise large through holes and small through holes, the throttling through holes (3-1) are arranged on the cylindrical surface of the oil nozzle (3) in a spiral mode, the throttling through holes (3-1) are arranged in a spiral mode of sequentially forming the small through holes, the large through holes, the small through holes and the small through holes from bottom to top, and the vertical distance between the centers of every two adjacent throttling through holes (3-1) is equal to the radius of the large through holes.
8. The adjustable novel erosion-resistant double-cage oil nozzle as claimed in claim 1, wherein: the upper end face of the outer cage sleeve (4) is provided with limiting teeth (4-2), the lower end face of the positioning sleeve (10) is provided with grooves, and the limiting teeth (4-2) are matched with the grooves.
9. The adjustable novel erosion-resistant double-cage oil nozzle as claimed in claim 8, wherein: the outer cage sleeve (4) is a cylindrical axial hole-opening piece, outer cage sleeve through holes (4-1) are formed in the cylindrical surface of the outer cage sleeve (4), the outer cage sleeve through holes (4-1) are arranged in a shape of a Chinese character jing, four layers of the outer cage sleeve through holes (4-1) are formed in the cylindrical surface along the axial direction of the outer cage sleeve (4), the positions of the outer cage sleeve through holes (4-1) are symmetrical about the axial direction of the outer cage sleeve (4), 8 groups of the outer cage sleeve through holes (4-1) are formed along the axial direction of the outer cage sleeve (4), the axial lines of two adjacent groups of the outer cage sleeve through holes (4-1) form an included angle of 90 degrees, and the hole-opening axial line of the outer cage sleeve through hole (4-1) close to one side of the radial hole (6-2) is perpendicular to the axial line of the radial hole (6-2) or not in the same straight line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123223946.9U CN216381341U (en) | 2021-12-21 | 2021-12-21 | Novel adjustable erosion-resistant double-cage-sleeve oil nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123223946.9U CN216381341U (en) | 2021-12-21 | 2021-12-21 | Novel adjustable erosion-resistant double-cage-sleeve oil nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN216381341U true CN216381341U (en) | 2022-04-26 |
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|---|---|---|---|
| CN202123223946.9U Active CN216381341U (en) | 2021-12-21 | 2021-12-21 | Novel adjustable erosion-resistant double-cage-sleeve oil nozzle |
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| Country | Link |
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| CN (1) | CN216381341U (en) |
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