CN111946930B - Pressure reduction and speed control assembly, sleeve and regulating valve - Google Patents
Pressure reduction and speed control assembly, sleeve and regulating valve Download PDFInfo
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- CN111946930B CN111946930B CN202010779833.8A CN202010779833A CN111946930B CN 111946930 B CN111946930 B CN 111946930B CN 202010779833 A CN202010779833 A CN 202010779833A CN 111946930 B CN111946930 B CN 111946930B
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- connecting piece
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- partition plates
- speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
- F16L55/02727—Throttle passages in the form of perforated plates placed parallel to the axis of the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02736—Throttle passages using transversal baffles defining a tortuous path
Abstract
The application discloses fast subassembly, sleeve and governing valve of step-down accuse belongs to governing valve technical field. The voltage reduction and speed control assembly comprises: a connecting piece and at least two clapboards; each partition plate comprises a first part and a second part, wherein the first part is provided with a first through hole, and one side of the second part is provided with an inclined slope surface with the thickness gradually reduced along the direction from the first part to the direction away from the first part; the at least two partition plates are positioned between the first end and the second end of the connecting piece, wherein the first end is opposite to the second end, and the connecting piece between two adjacent partition plates in the at least two partition plates is provided with a second through hole; the first parts and the second parts of the at least two partition plates are sequentially and alternately positioned on one side of the connecting piece along the direction from the first end to the second end, the second parts and the first parts of the at least two partition plates are sequentially and alternately positioned on the other side of the connecting piece, and one side of the second part, which is provided with the inclined slope surface, faces the direction of the first end. The pressure-reducing and speed-controlling component is low in manufacturing cost, and the manufacturing cost of the regulating valve can be effectively reduced.
Description
Technical Field
The application relates to the technical field of regulating valves, in particular to a pressure reduction and speed control assembly, a sleeve and a regulating valve.
Background
With the development of material science and technology and mechanical science and technology, the domestic valve industry is also continuously advanced, and the product structure types of various valve enterprises are in the endlessly. Wherein, the governing valve is a comparatively common valve, and one of its effect is to realize pressure control and flow control, prevents to wash out valve inner part under the poor condition of high pressure, prevents the cavitation flash distillation.
At present, in order to realize the pressure control and flow regulation of a regulating valve, a pressure reduction labyrinth lamination structure is usually arranged in the regulating valve, namely, each lamination is subjected to labyrinth flow channel design, the laminations are stacked layer by layer and then formed by vacuum fiber welding to form an integral pressure reduction cage, and fluid passes through the labyrinth flow channel for multiple times along the way and is subjected to local loss to achieve the effect of pressure reduction and speed control.
However, the current decompression labyrinth lamination structure is complex, needs a large-scale precision test device for processing and manufacturing and mainly depends on import, which results in higher cost.
Disclosure of Invention
In view of this, the present application provides a pressure-reducing and speed-controlling assembly, a sleeve and a regulating valve with simple structure, so as to reduce the manufacturing cost.
Specifically, the method comprises the following technical scheme:
in a first aspect, an embodiment of the present application provides a step-down speed control assembly, located in a throttling through hole of a sleeve body, the step-down speed control assembly includes: a connecting piece and at least two clapboards;
Each partition plate comprises a first part and a second part, wherein the first part is provided with a first through hole, and one side of the second part is provided with an inclined slope surface with the thickness gradually reduced along the direction from the first part to the direction away from the first part;
the at least two partition plates are positioned between a first end and a second end of the connecting piece, wherein the first end is opposite to the second end, and a second through hole is formed in the connecting piece between two adjacent partition plates in the at least two partition plates;
the first parts and the second parts of the at least two partition plates are sequentially and alternately positioned on one side of the connecting piece along the direction from the first end to the second end, the second parts and the first parts of the at least two partition plates are sequentially and alternately positioned on the other side of the connecting piece, and one side of the second part, which is provided with the inclined slope surface, faces to the direction of the first end.
In a possible design, the connecting piece is a rectangular plate body, and each partition plate is an integrally formed circular plate body.
In one possible design, the at least two partition plates are equally spaced between the first end and the second end of the connecting member, and two adjacent partition plates are parallel to each other.
In a possible design, the connecting piece has at least two limiting grooves, and the first connecting portion of each partition plate located between the first portion and the second portion is located in the limiting grooves in a one-to-one correspondence manner.
In one possible embodiment, each of the partition plates has a fixing groove, and the second connecting portion of the connecting member at the upper portion of the stopper groove is located in the fixing groove.
In a possible design, when the number of the partition plates is three or more, the aperture of the second through holes between two adjacent partition plates is gradually increased in a direction from the first end to the second end.
In one possible design, the first through holes on the first portions of the at least two separators have a hole diameter that gradually increases in a direction from the first end to the second end.
In a possible design, two sides of the first portion are two planes parallel to each other, and a range of an included angle between the inclined slope surface and any one of the two planes is greater than 0 degree and less than or equal to 15 degrees.
In a second aspect, an embodiment of the present application provides a sleeve, where the sleeve includes any one of the depressurization speed control assemblies mentioned in the first aspect and a sleeve body, a circumference of the sleeve body has a plurality of throttling through holes, and a plurality of depressurization speed control assemblies are located in the throttling through holes in a one-to-one correspondence manner.
In a third aspect, embodiments of the present application provide a regulator valve including the sleeve mentioned in the second aspect above.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
by arranging at least two partition plates between the first end and the second end which are opposite to each other of the connecting piece, when fluid needs to pass through the pressure and speed reducing and controlling assembly, the at least two first through holes and the at least one second through hole can provide a passage for the circulation of the fluid due to the fact that the first part of each partition plate is provided with the first through hole and the second through hole is formed in the connecting piece between the two adjacent partition plates; and because the first parts and the second parts of the at least two clapboards are sequentially and alternately positioned on one side of the connecting piece along the direction from the first end to the second end, the second parts and the first parts of the at least two clapboards are sequentially and alternately positioned on the other side of the connecting piece, and the second parts are provided with inclined slopes with gradually reduced thickness along the direction from the first part to the part far away from the first part and towards the direction of the first end, when fluid passes through the first through hole of the first part of the current clapboard and then collides with the inclined slopes of the second part of the next clapboard, the fluid energy is consumed in a mode of colliding with the inclined slopes, forming a micro vortex area between the two clapboards and colliding with the continuously inflowing fluid, and the pressure reduction and speed control are realized.
Because the pressure reduction and speed control assembly is only composed of the connecting piece and at least two partition plates, the structure is simple, and the manufacturing can be realized without a large-scale precise testing device, thereby reducing the manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a voltage-reducing speed-controlling assembly according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view of a pressure reducing and speed controlling assembly in a throttling bore of a sleeve body according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating the flow path of a fluid within the pressure and flow control assembly according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a connecting member in a pressure reducing and speed controlling assembly according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a partition plate in a pressure reducing and speed controlling assembly according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of another partition plate in a pressure reducing and speed controlling assembly according to an embodiment of the present disclosure;
Fig. 7 is a cross-sectional view of a sleeve according to an embodiment of the present application.
The reference numerals in the figures denote:
1-a connecting piece, wherein the connecting piece is provided with a plurality of connecting holes,
11-the first end of the first tube,
12-the second end of the first tube,
13-the second through-hole, and,
14-a limiting groove, wherein the limiting groove is arranged on the upper surface of the bracket,
15-the second connecting portion is provided with,
2-a partition board which is arranged on the upper surface of the shell,
21-the first part-the second part,
22-the second part,
23-the first through-hole or holes,
24-the inclined slope surface is arranged on the lower portion of the steel pipe,
25-the first connection portion-is,
26-the fixing groove is formed by a groove,
201-a first partition plate, which is,
202-a second partition plate, the second partition plate,
203-a third partition plate, the third partition plate,
204-a fourth partition plate,
205-a fifth baffle-plate, which,
3-the main body of the sleeve,
31-a throttling through-hole, wherein,
32-throttling the inner wall of the through hole.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Before the embodiments of the present application are described in further detail, the terms of orientation, such as "upper" in the embodiments of the present application, are used only for clearly describing the structures of the pressure reducing and speed controlling assembly, the sleeve and the regulating valve of the embodiments of the present application, with reference to the orientation shown in fig. 1, and are not intended to limit the scope of the present application.
In order to make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.
With the further improvement of the scientific and technological level of China, the scale of the industrial production fields of petrochemical industry, natural gas liquefaction and the like is continuously enlarged, and the technological parameters are increased accordingly. In the control system, working conditions such as high pressure, high flow rate and the like frequently occur, and in order to realize pressure control and flow regulation, a regulating valve can be used for realizing.
At present, in order to realize pressure control and flow regulation of the regulating valve, a multi-stage depressurization labyrinth lamination structure, a multi-stage series depressurization structure, a multi-layer sleeve structure and the like are usually arranged in the regulating valve, wherein the depressurization labyrinth lamination structure is taken as a main part, each lamination is utilized to design a labyrinth flow passage, the lamination layers are superposed and then formed by vacuum fiber welding to form an integral depressurization cage, and fluid passes through the labyrinth flow passage for multiple times along the way and reaches the effect of depressurization and speed control through local loss.
However, the existing decompression labyrinth lamination structure is complex, a large-sized precise testing device is required for processing and manufacturing, the import is mainly relied on, and the cost is high.
In order to solve the problems of complex structure and high manufacturing cost of the depressurization and speed control assembly in the regulating valve in the prior art, the embodiment of the application provides the depressurization and speed control assembly which can be arranged in the throttling hole of the sleeve body, and the structure of the depressurization and speed control assembly is shown in fig. 1 and 2.
Referring to fig. 1 and 2, the pressure-reducing and speed-controlling assembly provided by the embodiment of the present application includes a connecting member 1 and at least two partition plates 2.
Here, the at least two separators 2 means that the number of the separators 2 is at least two, and may be more than two, that is, the number of the separators 2 may be three, four, five, six, and the like, and is not particularly limited herein.
For example, referring to fig. 1, the number of the separators 2 is five.
Wherein each partition 2 comprises a first portion 21 and a second portion 22, the first portion 21 having a first through hole 23, and one side of the second portion 22 having an inclined ramp 24 with a thickness gradually decreasing in a direction from the first portion 21 to a direction away from the first portion 21.
At least two partition boards 2 are located between the first end 11 and the second end 12 of the connecting piece 1, wherein the first end 11 is opposite to the second end 12, and the connecting piece 1 between two adjacent partition boards 2 of the at least two partition boards 2 is provided with a second through hole 13, that is, the connecting piece 1 between any two adjacent partition boards 2 is provided with a second through hole 13.
The first parts 21 and the second parts 22 of the at least two partition boards 2 are sequentially and alternately positioned on one side of the connecting piece 1 along the direction from the first end 11 to the second end 12, the second parts 22 and the first parts 21 of the at least two partition boards 2 are sequentially and alternately positioned on the other side of the connecting piece 1, and one side, provided with the inclined slope surface 24, of the second part 22 faces the direction of the first end 11. Since each partition 2 comprises a first portion 21 and a second portion 22, the first portions 21 and the second portions 22 of at least two partitions 2 are alternately located on one side of the connecting member 1 in sequence in a direction from the first end 11 to the second end 12, and the second portions 22 and the first portions 21 of at least two partitions 2 are alternately located on the other side of the connecting member 1 in sequence in a direction from the first end 11 to the second end 12.
When the pressure reducing and speed controlling assembly is used, the number of the pressure reducing and speed controlling assemblies is generally multiple and is the same as that of the throttling through holes.
The operating principle of the step-down speed control assembly provided by the embodiment of the application is as follows:
when fluid needs to pass through the pressure-reducing and speed-controlling assembly, referring to the schematic path diagram of the fluid flowing in the pressure-reducing and speed-controlling assembly in fig. 3, since the first portion 21 of each partition plate 2 has the first through hole 23 and the second through hole 13 is provided on the connecting member 1 between two adjacent partition plates 2, at least two first through holes 23 and at least one second through hole 13 can provide a passage for the fluid to flow through; and because the first parts 21 and the second parts 22 of at least two partition boards 2 are sequentially and alternately positioned on one side of the connecting piece 1 along the direction from the first end 11 to the second end 12, the second parts 22 and the first parts 21 of at least two partition boards 2 are sequentially and alternately positioned on the other side of the connecting piece 1, and the inclined slope surfaces 24 with gradually reduced thickness along the direction from the first part 21 to the first part 21 of the second part 22 face the direction of the first end 11, when the fluid passes through the first through hole 23 of the first part 21 of the current partition board 2 and then collides with the inclined slope surfaces 24 of the second part 22 of the next partition board 2, the fluid energy is consumed in a mode of colliding with the inclined slope surfaces 24, forming a micro vortex area in the space formed by the two partition boards 2 and the inner wall of the throttling through hole and colliding with the continuously flowing fluid, and the pressure reduction and speed control are realized.
It will be appreciated that, as the number of the partition plates 2 is increased, the number of the partition plates 2 through which the fluid passes through the pressure-reducing and speed-controlling module is increased, and the energy of the fluid is also consumed.
Therefore, the pressure reduction and speed control assembly provided by the embodiment of the application can realize pressure reduction and speed control on inflow fluid by using the connecting piece 1 and the at least two partition plates 2. Meanwhile, the pressure reduction and speed control assembly is only composed of the connecting piece 1 and at least two partition plates 2, so that the pressure reduction and speed control assembly is simple in structure, and can be manufactured without a large-scale accurate testing device, the manufacturing cost is reduced, and the problems of complex structure and overhigh manufacturing cost in the prior art are solved.
In one possible design, see fig. 4, the connecting element 1 is a rectangular plate, which is easy to manufacture.
It will be appreciated that the rectangular shape is a well-known and common shape and the manufacture of the connector 1 is simpler than the complex labyrinth flow path structure.
In one possible design, referring to fig. 4, the second through holes 13 between two adjacent partition plates 2 may each include a plurality of sub through holes.
Optionally, the aperture of each sub-through hole may be the same, so as to facilitate processing and manufacturing.
In a possible design, with continued reference to fig. 4, when the number of the partition boards 2 is three or more, since the second through holes 13 are formed between two adjacent partition boards 2, the number of the second through holes 13 is plural, and the hole diameters of the plural second through holes 13 gradually increase in a direction from the first end 11 to the second end 12.
The arrangement is that the divergent second through hole 13 is adopted, so that the flow area of the fluid is continuously increased, and the flow speed of the fluid is gradually reduced.
In one possible design, with continued reference to fig. 4, the connecting element 1 has at least two retaining grooves 14, and the first connecting portions 25 of each separating wall 2 between the first portion 21 and the second portion 22 are located in the retaining grooves 14 in a one-to-one correspondence, so that each separating wall 2 can be retained on the connecting element 1 by means of the corresponding retaining groove 14. In other words, the number of the stopper grooves 14 is the same as the number of the separators 2.
Since the at least two partition plates 2 are equally spaced between the first end 11 and the second end 12 of the connecting member 1, at least two spacing grooves 14 are also equally spaced on the connecting member 1, see fig. 4.
Optionally, the ratio of the depth of the limiting groove 14 to the width of the connecting member 1 is 2/3-4/5, so that as many first connecting portions 25 of the partition board 2 between the first portion 21 and the second portion 22 are located in the limiting groove 14 as possible.
In a possible design, referring to fig. 1, 5 or 6, each partition board 2 is a circular plate body formed integrally, so as to facilitate processing.
It will be appreciated that the circular shape is a well-known and common shape, and the partition plate 2 is simpler to manufacture than a complex labyrinth flow passage structure.
Optionally, when the partition board 2 is a circular board, the radius of the circle where the circular board is located is the same as the radius of the throttling through hole, so that the edge of each partition board 2 is in contact with the inner wall of the throttling through hole, and a gap through which fluid can flow is prevented from being formed between the edge of each partition board 2 and the inner wall of the throttling through hole.
It should be noted that, since the fluid passing through the first through hole 23 of the first portion 21 of the partition 2 at the first end 11 of the connecting member 1 when flowing into the pressure reducing and speed controlling assembly provided in the embodiment of the present application impinges on the inclined ramp 24 of the second portion 22 of the next partition 2, the second portion 22 of the partition 2 at the first end 11 of the connecting member 1 may not have the inclined ramp 24, see fig. 2.
In a possible design, referring to fig. 1 or fig. 2, at least two partition plates 2 are equally spaced between the first end 11 and the second end 12 of the connecting member 1, that is, the distance between two adjacent partition plates 2 is constant, which facilitates design and manufacturing.
In one possible design, see fig. 1 or fig. 2, two adjacent partitions 2 are parallel to each other, facilitating subsequent installation into the sleeve.
In one possible design, referring to fig. 5 or 6, the first through-hole 23 provided on the first portion 22 may include a plurality of sub-through-holes.
The aperture of each sub-through hole can be the same or different, and the sub-through holes can be processed and manufactured according to the requirement.
In one possible design, with continued reference to fig. 5 or 6, each partition 2 has a fixing groove 26, in which the second connecting portion 15 of the connecting element 1 at the upper part of the retaining groove 14 is located in the fixing groove 26.
When the partition board 2 needs to be fixed to the connection member 1, the partition board 2 having one side of the fixing groove 26 is inserted into the limiting groove 14 in alignment, so that the first connection portion 25 of the partition board 2 located between the first portion 21 and the second portion 22 may be located in the limiting groove 14, and along with the continuous insertion of the partition board 2, the second connection portion 15 of the connection member 1 may continuously enter the fixing groove 26, so that the partition board 2 and the connection member 1 may be engaged with each other, and stable connection between the partition board 2 and the connection member 1 is ensured.
In one possible design, see fig. 1, the first through-holes 23 in the first portions 21 of at least two separators 2 have a gradually increasing aperture in the direction from the first end 11 to the second end 12.
Similar to the gradual increase of the hole diameters of the plurality of second through holes 13 in the direction from the first end 11 to the second end 12, the flow area of the fluid can be increased and the flow speed of the fluid can be decreased gradually by using the gradually expanding first through hole 23.
In a possible design, see fig. 2, two planes parallel to each other are provided on both sides of the first portion 21, and the angle α between the inclined slope surface 24 and any one of the two planes is greater than 0 degree and less than or equal to 15 degrees.
So set up for when the fluid collides the slope surface 24 that inclines, most fluid can be along the direction that slope surface 24 flowed to connecting piece 1, and the direction of the little part fluid flow direction of leaving away from connecting piece 1 collides the inner wall of the throttle through-hole that step-down accuse fast subassembly was located then, because the compulsory change fluid flow direction here, can form local tiny vortex region in this department. In a vortex region, the fluid irregularly rotates, collides and reflows, and can collide with the fluid continuously flowing in, further consuming the energy of the fluid, and reducing the pressure and the speed of the fluid.
In one possible design, the connecting piece 1 and the at least two separating plates 2 are each made of stainless steel.
In a possible example, the pressure-reducing and speed-controlling assembly is located in a throttling through hole of a sleeve body, taking fig. 3 as an example, where the number of the partition plates 2 is 5, and a first partition plate 201, a second partition plate 202, a third partition plate 203, a fourth partition plate 204 and a fifth partition plate 205 are respectively arranged from the first end 11 to the second end 12, which specifically describes the flow pattern of fluid in the pressure-reducing and speed-controlling assembly provided by the embodiment of the present application:
When fluid needs to pass through the pressure and speed reducing and controlling assembly provided by the embodiment of the application, the fluid enters the space formed by the first partition plate 201, the second partition plate 202 and the inner wall 32 of the throttling through hole on one side of the connecting piece 1 through the first through hole 23 on the first partition plate 201, because the flow velocity of the fluid is relatively high, the fluid will collide with the inclined slope surface 24 of the second partition plate 202 after passing through the first through hole 23 of the first partition plate 201, most of the fluid will enter into the space formed by the first and second clapboards 201 and 202 and the inner wall 32 of the throttling through hole on the other side of the connecting piece 1 through the second through hole 13 on the connecting piece 1 between the first clapboard 201 and the second clapboard 202 after collision, a small part of fluid collides with the inner wall 32 of the throttling through hole and the first partition plate 201 to form a local micro-eddy region and collides with the fluid flowing in continuously;
the fluid introduced into the space formed by the first and second partitions 201 and 202 and the inner wall 32 of the throttle through-hole at the other side of the connection member 1 collides with the first and second partitions 201 and 202 and the inner wall 32 of the throttle through-hole, and enters into the space formed by the second clapboard 202, the third clapboard 203 and the inner wall 32 of the throttling through hole on the other side of the connecting piece 1 through the first through hole 23 on the second clapboard 202, and collides with the inclined slope surface 24 of the third clapboard 203, most of the fluid will enter into the space formed by the second partition plate 202 and the third partition plate 203 on one side of the connecting piece 1 and the inner wall 32 of the throttling through hole through the second through hole 13 on the connecting piece 1 between the second partition plate 202 and the third partition plate 203 after collision, a small part of fluid collides with the inner wall 32 of the throttling through hole and the second partition plate 202 to form a local micro-eddy region and collides with the fluid flowing in continuously;
The fluid entering the aperture formed by the second partition plate 202, the third partition plate 203 and the inner wall 32 of the throttling through hole on one side of the connecting piece 1 enters the space formed by the third partition plate 203, the fourth partition plate 204 and the inner wall 32 of the throttling through hole on one side of the connecting piece through the first through hole 23 on the third partition plate 203 and collides with the inclined slope 24 of the second partition plate 202, wherein most of the fluid enters the space formed by the third partition plate 203, the fourth partition plate 204 and the inner wall 32 of the throttling through hole on the other side of the connecting piece 1 through the second through hole 13 on the connecting piece 1 between the third partition plate 203 and the fourth partition plate 204 after collision, and a small part of the fluid collides with the inner wall 32 of the throttling through hole and the third partition plate 203 to form a local micro-vortex area and collides with the fluid which continuously flows in;
the fluid entering the space formed by the third partition 203, the fourth partition 204 and the inner wall 32 of the throttling through hole on the other side of the connecting piece 1 collides with the third partition 203, the fourth partition 204 and the inner wall 32 of the throttling through hole, and enters the space formed by the fourth partition 204, the fifth partition 205 and the inner wall 32 of the throttling through hole on the other side of the connecting piece 1 through the first through hole 23 on the fourth partition 204, collides with the inclined slope 24 of the fifth partition 205, at this time, the flow rate of the fluid is greatly reduced compared with the flow rate when the fluid passes through the first through hole 23 on the partition, at this time, most of the fluid after the collision enters the space formed by the fourth partition 204, the fifth partition 205 and the inner wall 32 of the throttling through hole on one side of the connecting piece 1 through the second through hole 13 on the connecting piece 1 between the fourth partition 204 and the fifth partition 205, and a very small part of the fluid collides with the inner wall 32 of the throttling through hole and the fourth partition 204 to form a local micro vortex area, and is flushed with the fluid which continuously flows in;
The fluid entering the space formed by the fourth partition plate 204, the fifth partition plate 205 and the inner wall 32 of the throttling through hole on one side of the connecting piece 1 collides with the fourth partition plate 204, the fifth partition plate 205 and the inner wall 32 of the throttling through hole and flows out of the pressure-reducing and speed-controlling assembly through the first through hole 23 on the fifth partition plate 205, so as to complete pressure reduction and speed control.
In another aspect, the present embodiment further provides a sleeve, see fig. 7, which includes a plurality of pressure reducing and speed controlling assemblies according to any one of the embodiments of the present invention and a sleeve body 3. Wherein, the periphery of sleeve body 3 has a plurality of throttle through-holes 31, and a plurality of step-down accuse fast subassembly one-to-one is located throttle through-hole 31.
Based on the adoption of the pressure reduction and speed control assembly, the structure of the sleeve is simplified, and the manufacturing cost of the sleeve is reduced.
In a possible design, a plurality of throttling through holes 31 are uniformly distributed on the circumference of the sleeve body 3, and the number of the throttling through holes 31 on the same height is the same.
In another aspect, embodiments of the present application further provide a regulating valve, where the regulating valve includes a sleeve according to embodiments of the present application.
Based on the sleeve with the pressure reduction and speed control assembly, the structure of the regulating valve is simplified, and the manufacturing cost of the regulating valve is also reduced.
In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless explicitly defined otherwise.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (8)
1. The utility model provides a fast subassembly of step-down accuse which lies in the throttle through-hole of sleeve body, the fast subassembly of step-down accuse includes: a connecting piece (1) and at least two clapboards (2);
each partition plate (2) is an integrally formed round plate body, each partition plate (2) comprises a first portion (21) and a second portion (22), a first through hole (23) is formed in the first portion (21), and one side of the second portion (22) is provided with an inclined slope surface (24) with the thickness gradually reduced along the direction from the position close to the first portion (21) to the position far away from the first portion (21);
The at least two partition plates (2) are positioned between a first end (11) and a second end (12) of the connecting piece (1), wherein the first end (11) is opposite to the second end (12), and a second through hole (13) is formed in the connecting piece (1) between two adjacent partition plates (2) in the at least two partition plates (2);
the connecting piece (1) is a rectangular plate body, the first portion (21) and the second portion (22) of at least two baffles (2) are located in one side of the connecting piece (1) in turn along the direction from the first end (11) to the second end (12), the other side of the connecting piece (1) is the second portion (22) and the first portion (21) of at least two baffles (2) in turn, the second portion (22) has one side of the slope surface (24) towards the direction where the first end (11) is located, the aperture of the first through hole (23) on the first portion (21) of at least two baffles (2) is from the first end (11) to the direction of the second end (12) is gradually increased.
2. The pressure reducing and speed controlling assembly according to claim 1, wherein the at least two diaphragms (2) are equally spaced between the first end (11) and the second end (12) of the connecting member (1), and adjacent two diaphragms (2) are parallel to each other.
3. The pressure reducing and speed controlling assembly according to claim 1, wherein the connecting member (1) has at least two limiting grooves (14), and the first connecting portion (25) of each partition plate (2) between the first portion (21) and the second portion (22) is located in the limiting grooves (14) in a one-to-one correspondence.
4. The depressurize and speed control assembly according to claim 3, wherein each of the partition plates (2) has a fixing groove (26), and the second connecting portion (15) of the connecting member (1) at the upper portion of the stopper groove (14) is located in the fixing groove (26).
5. The pressure-reducing and speed-controlling assembly according to claim 1, wherein when the number of the partition plates (2) is three or more, the aperture of the plurality of second through holes (13) between two adjacent partition plates (2) is gradually increased in a direction from the first end (11) to the second end (12).
6. The pressure-reducing and speed-controlling assembly according to claim 1, wherein two sides of the first portion (21) are two planes parallel to each other, and an included angle between the inclined slope surface (24) and any one of the two planes is greater than 0 degree and less than or equal to 15 degrees.
7. A sleeve, characterized in that it comprises a plurality of pressure-reducing and speed-controlling assemblies according to any one of claims 1 to 6 and a sleeve body (3), the circumference of the sleeve body (3) having a plurality of throttling through holes (31), a plurality of pressure-reducing and speed-controlling assemblies being located in the throttling through holes (31) in a one-to-one correspondence.
8. A regulator valve, characterized in that it comprises a sleeve according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779833.8A CN111946930B (en) | 2020-08-05 | 2020-08-05 | Pressure reduction and speed control assembly, sleeve and regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779833.8A CN111946930B (en) | 2020-08-05 | 2020-08-05 | Pressure reduction and speed control assembly, sleeve and regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111946930A CN111946930A (en) | 2020-11-17 |
| CN111946930B true CN111946930B (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010779833.8A Active CN111946930B (en) | 2020-08-05 | 2020-08-05 | Pressure reduction and speed control assembly, sleeve and regulating valve |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3078877A (en) * | 1960-07-19 | 1963-02-26 | United Nuclear Corp | Labyrinth control valve |
| DE10216870A1 (en) * | 2002-04-17 | 2003-11-13 | Daimler Chrysler Ag | Acoustic damper for rain drainage channels on lorry comprises tube mounted at base of channel which is divided internally by transverse ribs which form labyrinthine channel |
| ES1067292U (en) * | 2008-02-08 | 2008-05-01 | Fominaya, S.A. | Tap filter |
| CN203549257U (en) * | 2013-09-27 | 2014-04-16 | 华东理工大学 | Labyrinth-type orifice plate unit device for constant-value pressure reducing and current limiting of pipeline |
| CN103968149A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Axial-flow type maze throttling structure |
| CN207921468U (en) * | 2017-12-27 | 2018-09-28 | 西安航天远征流体控制股份有限公司 | A kind of labyrinth adjusting valve disc devices structure |
-
2020
- 2020-08-05 CN CN202010779833.8A patent/CN111946930B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3078877A (en) * | 1960-07-19 | 1963-02-26 | United Nuclear Corp | Labyrinth control valve |
| DE10216870A1 (en) * | 2002-04-17 | 2003-11-13 | Daimler Chrysler Ag | Acoustic damper for rain drainage channels on lorry comprises tube mounted at base of channel which is divided internally by transverse ribs which form labyrinthine channel |
| ES1067292U (en) * | 2008-02-08 | 2008-05-01 | Fominaya, S.A. | Tap filter |
| CN203549257U (en) * | 2013-09-27 | 2014-04-16 | 华东理工大学 | Labyrinth-type orifice plate unit device for constant-value pressure reducing and current limiting of pipeline |
| CN103968149A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Axial-flow type maze throttling structure |
| CN207921468U (en) * | 2017-12-27 | 2018-09-28 | 西安航天远征流体控制股份有限公司 | A kind of labyrinth adjusting valve disc devices structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111946930A (en) | 2020-11-17 |
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