TW201502402A - Valve installed in the flow control sleeve group - Google Patents

Abstract

The present invention relates to a valve installed in the flow control sleeve group, which mainly comprises a base, a first sleeve, a second sleeve and a valve plug. The valve body is disposed on the base of a channel and located between the inlet end and the outlet end of the channel. The first sleeve is located inside the second sleeve. Both the first and second sleeves are provided with a plurality of perforations. The first and second sleeves are spaced from each other at a proper distance and are mounted on the base. The top of the valve plug is connected to a drive shaft of the valve and can move up and down as controlled by the drive shaft in order to control the quantity of the perforations that can be laid open in the channel. With the present invention, the structure, not only through the double sleeve configuration, to avoid turbulence and to achieve the best effect of flow regulation. Moreover, by freely adjusting sleeve replacement and a combination device in the fluid line can be in response to the needs of the system for flow characteristics, can be easily applied in a variety of the valve body, a substantial increase in the ease of use.

Description

Flow control sleeve set

The present invention relates to a flow control assembly for use in a valve body, and more particularly to a flow control sleeve set having a double layer of porous sleeve.

The valve body is the most popular mechanical device for controlling fluid transportation. It is mainly used in the system of fluid transportation. The valve body is installed in the pipeline between the fluid supply end and the use end to change the fluid flow direction and guide. The fluid forms a function of splitting the flow, adjusting the flow rate and flow rate of the fluid, and shutting off the flow of the fluid; and when the fluid delivery system needs to change the flow rate of the fluid in the pipeline, such as the existing one-eighth control valve is assembled on the pipeline, and depending on the demand for use, The flow rate is reduced to four or less. According to the current technology, it is usually to replace a new set of flow characteristic control valves or to add another four-turn pipeline and valve to meet the needs of use, but these two methods are not only difficult to construct, There is also a need to replace or add a large number of parts, resulting in excessive cost, so there are still problems to be improved.

In order to improve the effect of the flow regulation, the valve body can be further improved, and a single-layer sleeve is arranged at the valve core, and the flow is adjusted through the perforation formed in the sleeve, but the valve body of the structure is only The fixed flow coefficient can be adjusted. When the system wants to change the flow characteristics, it can only choose to replace a new valve body or add a new pipeline, which can not effectively improve the problem.

Another example is the applicant of the case who first proposed the Republic of China Announcement No. M419846 The new patent "cage valve improved structure" controls the flow of fluid through the structure of the three-layer cage sleeve, allowing the user to adjust the number of perforations that the fluid can circulate according to the demand, thereby achieving the function of regulating the flow; In the structure of the case, because the cage sleeve is driven up and down through the rotating shaft, the relatively deep space is required to start the three-layer cage sleeve, and in actual use, the space in the valve body is generally difficult to meet. The requirements of use cannot be fully utilized; in addition, the position of the perforations of the cages of the case must also meet certain correspondences, so that the perforations of the layers can be matched when the cages are not deployed. For fluid circulation, it is also inconvenient in production and use.

In view of this, the inventors have further improved these problems, so that the fluid control component applied to the valve body can have better performance in flow regulation, and can be widely applied to a general valve body structure. Make the user more convenient.

The invention mainly uses a flow control sleeve set to regulate the flow rate of a fluid in a valve body. The valve body can include a body and a valve cover. The body is provided with a passage, and the two ends of the passage are respectively an inlet end. And an outlet end, and the valve cover can be locked to the body via a locking component and provided with a drive shaft.

The main object of the present invention is to adjust the flow rate by using the double-layered sleeve assembly in the flow control sleeve group, and control the flowable number of perforations through the valve plug actuation, and can effectively control and adjust the flow coefficient (Cv) according to requirements. To meet the needs of use.

Another object of the present invention is to avoid the problem that the distance between the sleeves is too close or the perforations of the sleeves are not corresponding to each other to prevent the flow between the sleeves by the appropriate distance between the double sleeves. The flow control sleeve set can be widely applied to the structure of various valve bodies, and the components can be replaced and used according to the needs of use. Convenience.

To achieve the above objective, the flow control sleeve set of the present invention is mainly installed in a valve body, and includes a base, a first sleeve, a second sleeve and a valve plug. The base is an annular body disposed in the passage between the inlet end and the outlet end; the first sleeve is generally hollow cylindrical, and the bottom end is disposed on the surface of the base. And a plurality of perforations are formed on the side; the second sleeve is generally hollow and is located in the first sleeve, and the bottom end is disposed on the surface of the base and is provided with a plurality of sides The perforation, in addition, the diameter of the second sleeve is smaller than the diameter of the first sleeve, and the distance between the outer wall surface of the second sleeve and the inner wall surface of the first sleeve is greater than or equal to the first sleeve 0.15 times the inner radius of the cylinder; the top end of the valve plug is connected to the driving shaft, and includes a first piston portion and a second piston portion. The first piston portion is disposed in the second sleeve and is The inner side of the second sleeve corresponds to the columnar body and is movable in the axial direction of the second sleeve. The second piston portion is disposed between the first sleeve and the second sleeve, and is a cylindrical body corresponding to the inner side surface of the first sleeve and the outer side surface of the second sleeve, and may be combined with the first piston portion Moving in the direction of the axial direction of the second sleeve.

With the above structure, when the user actuates the drive shaft, the valve plug can be moved up and down, and the fluid in the valve body can flow through different numbers of perforations through the lifting and lowering of the valve plug, and is adjusted according to the needs of the user. The position of the valve plug can effectively adjust the flow rate and flow rate at the outlet end, thereby controlling the flow coefficient (Cv), and controlling the distance between the first sleeve and the second sleeve to avoid the problem of spoiler when the fluid passes through the valve body. To achieve the best results of flow control.

Preferably, the base protrudes upwardly from the first sleeve and the second sleeve with a first flange and a second flange, respectively, for fixing the first sleeve and the first The position of the two sleeves further defines the corresponding relationship of the components, which can avoid the positional deviation when the machine is actuated, and can improve the convenience when replacing the sleeve.

Preferably, the base may be a circular annular body.

Preferably, the valve plug further comprises a top cover, the top cover is combined with the first piston portion and the second piston portion, whereby the top cover can be driven together by the driving shaft to move up and down The first piston portion and the second piston portion are simultaneously operated, and the flow rate can be controlled more accurately.

Preferably, the shapes of the perforations may be circular, square elliptical, etc., or, in other words, may be polygonal.

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the present inventors, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

10‧‧‧Fluid Control Sleeve Set

11‧‧‧Base

111‧‧‧First flange

112‧‧‧second flange

113‧‧‧ flow path

12‧‧‧First sleeve

13‧‧‧Second sleeve

14‧‧‧ Valve plug

141‧‧‧First piston department

142‧‧‧Second Piston

143‧‧‧Top cover

20‧‧‧ valve body

21‧‧‧ body

211‧‧‧ channel

212‧‧‧ imported end

213‧‧‧export end

22‧‧‧ bonnet

221‧‧‧ drive shaft

222‧‧‧Locking components

A‧‧‧Perforation

1 is a schematic view showing the appearance of a flow control sleeve set according to a preferred embodiment of the present invention; FIG. 2 is an exploded view of the flow control sleeve set of the preferred embodiment of the present invention; and FIG. 3 is a view showing a preferred embodiment of the present invention. FIG. 4 is a schematic view showing the operation of the valve plug according to the preferred embodiment of the present invention; FIG. 5 is a schematic view showing the structure of the valve body assembled by the preferred embodiment of the present invention; FIG. 7 is a schematic view showing the operation of the valve plug in the valve body. FIG. 7 is a schematic view showing the operation of the valve plug in the valve body according to the preferred embodiment of the present invention (2).

1 and 2 are an external view and an exploded view of a flow control sleeve set according to a preferred embodiment of the present invention. As shown in the figure, the main structure of the flow control sleeve set 10 of the present embodiment includes a base. 11. A first sleeve 12, a second sleeve 13, and a valve plug 14.

In this embodiment, the base 11 is located at the bottom of the flow control sleeve set 10, and has a circular annular body. The middle portion of the base 11 forms a through-flow passage 113 on the outer edge of the upper surface of the base 11. A first flange 111 and a second flange 112 are respectively protruded upwardly from the inner edge for respectively positioning the first sleeve 12 and the second sleeve 13 coupled to the base.

The first sleeve 12 and the second sleeve 13 are both hollow cylinders, and a plurality of perforations A are respectively formed on the side surfaces; the first sleeve 12 and the second sleeve 13 are coaxially disposed coaxially on the base 11 On the surface, the diameter of the second sleeve 13 is smaller than the diameter of the first sleeve 12 and is located inside the first sleeve 12; in addition, the bottom ends of the first sleeve 12 and the second sleeve 13 are The first flange 111 and the second flange 112 protruding from the surface of the base 11 can be fixed to fix the position to avoid displacement; wherein the first flange 111 of the embodiment is disposed on the first sleeve 12 The outer side of the first sleeve 12 abuts against the first flange 111, and the first flange 111 can also be disposed on the inner side of the first sleeve 12 according to the use condition, so that the first sleeve The inner side of the bottom end of the base 12 is abutted against the first flange 111. Similarly, the second flange 112 can be disposed on the inner side or the outer side of the second sleeve 13, so that the inner side or the outer end of the bottom end of the second sleeve 13 The second flange 112 protrudes from the side of the base 11 .

The valve plug 14 has a top end for connecting to a driving shaft, and a top cover 143 is disposed below the connecting portion. The top cover 143 is opposite to the other side of the driving shaft, that is, the lower side of the top cover 143. a piston portion 141 and a second piston portion 142; the first piston portion 141 is a solid cylinder disposed on the inner side of the second sleeve 13, and the outer diameter of the first piston portion 141 is approximately equal to the second sleeve The inner diameter of 13 allows the first piston portion 141 to be along the second sleeve 13 is moved in the axial direction; the second piston portion 142 is a hollow cylinder which is located between the first sleeve 12 and the second sleeve 13, and the inner diameter of the second piston portion 142 is approximately equal to the second The outer diameter of the sleeve 13 and the outer diameter of the second piston portion 142 are approximately equal to the inner diameter of the first sleeve 12, so that the second piston portion 142 can move in the axial direction of the first sleeve 12 and the second sleeve 13. Moreover, the first piston portion 141 and the second piston portion 142 can be simultaneously actuated by the connection of the top cover 143.

The flow control sleeve set 10 of the present embodiment is mainly applied to the structure of a valve body device. As shown in FIG. 5, the valve body 20 includes a body 21 and a valve cover 22. The body 21 is provided with a channel 211 for providing fluid communication, and the two ends of the channel 211 are respectively an inlet end 212 and an outlet end 213, and can be respectively connected to the pipe body (not shown). The fluid supply end and the release end; the valve cover 22 is locked to the body 21 via the locking component 222, and the body 21 can be closed to open one opening on one side of the channel 211, through which the user can easily The flow control sleeve set 10 is mounted to the passage 211 in the body 21, and the base 11 is fixed to the narrower spool position in the passage 211, and the valve plug 14 in the flow control sleeve set 10 is connected at the top end. One of the bonnets 22 drives the shaft 221, and the user can actuate the drive shaft 221 to drive the valve plug 14 up and down. The drive shaft 221 may be a screw that moves up and down by a swirling method, but may be operated by a cylinder or the like.

Please refer to FIGS. 3~4 and 6~7, respectively, for the actuation diagram of the valve plug in this embodiment. As shown in FIG. 3, the valve plug 14 and the sleeve (the first sleeve 12 and the first The two sleeves 13) are in a closed state. At this time, the perforations A of the first sleeve 12 and the second sleeve 13 are not allowed to flow through the fluid, and as shown in FIG. 4, when the valve plug 14 moves upward, gradually Each of the perforations A is opened, so that the fluid on the side of the inlet end 212 of the passage 211 can flow through the first sleeve 12 and the second sleeve 13 to the inside of the second sleeve 13 through the perforations A, due to the valve plug 14 Limiting, the fluid will flow downward and flow out through the flow path 113 of the base 11 The quantity control sleeve set 10, which in turn flows to the outlet end 213, and by controlling the height at which the valve plug 14 rises, can effectively grasp the number of perforations A opened, thereby controlling the flow rate. Wherein, the valve plug 14 has the first piston portion 141 and the second piston portion 142 at the same time, which can prevent the fluid in the flow control sleeve group 10 from unpredictable flow phenomenon, thereby improving the service life of the flow control sleeve group 10 .

Similarly, in the sixth and seventh figures, the valve plug 14 is driven up and down by the drive shaft 221, the sixth figure is the closed state in which the valve plug 14 is lowered, and the seventh figure is the fully open state in which the valve plug is raised. The user is allowed to control the flow rate through the drive shaft 221 to control the opening height of the valve plug 14.

Furthermore, the flow control sleeve set 10 of the present embodiment adopts a double-layered sleeve structure, and has a more stable outlet pressure than the conventional single-layered sleeve structure. However, in view of the problem that the distance between the first sleeve 12 and the second sleeve 13 is too close, the problem of the spoiler may occur. In the structure of the flow control sleeve group 10 of the present embodiment, the inner wall surface of the first sleeve 12 and the first The distance between the outer wall surfaces of the two sleeves 13 is at least 0.15 times the inner radius of the first sleeve 12, and depending on the use, the distance between the inner wall surface of the first sleeve 12 and the outer wall surface of the second sleeve 13 may be greater than The inner sleeve 12 has a radius of 0.15 times, thereby effectively preventing the occurrence of the spoiler; the perforations A through the first sleeve 12 and the second sleeve 13 can be non-corresponding to each other. The perforation A of the first sleeve 12 and the perforation A of the second sleeve 13 may also be apertures of different sizes, thereby allowing the user to obtain different flow characteristics when the fluid is discharged at the outlet end 213 ( Cv) adjusting the effect, and more precisely controlling the flow characteristics of the flow control sleeve group 10; even, with the valve body 20 structure disclosed in the present embodiment, the user only needs to open the valve cover 22 to replace the flow control sleeve. The components of the cartridge set 10, such as the first sleeve 12 or the second sleeve 13 of different apertures Meet the needs of the effect.

In the present embodiment, the perforations A of the first sleeve 12 and the second sleeve 13 and the components of the flow control sleeve set 10, such as the base 11, the first sleeve 12, The second sleeve 13 and the valve plug 14 are both circular, which is not intended to limit the scope of the patent application of the present invention. According to the actual situation, the perforation A may also be square, elliptical or even polygonal. The components of the flow control sleeve set 10 may also be mutually corresponding polygonal structures.

The embodiments described above are merely illustrative of the technical spirit and characteristics of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention. Equivalent changes or modifications made in accordance with the spirit of the present invention should still be included in the scope of the invention.

11‧‧‧Base

111‧‧‧First flange

112‧‧‧second flange

12‧‧‧First sleeve

13‧‧‧Second sleeve

14‧‧‧ Valve plug

142‧‧‧Second Piston

143‧‧‧Top cover

A‧‧‧Perforation

Claims (6)

A flow control sleeve set is installed in a valve body, the valve body comprises a body and a valve cover, the body is provided with a passage, and at each end of the passage is an inlet end and an outlet end respectively The valve cover can be locked to the body via a locking component, and a drive shaft is disposed. The flow control sleeve set includes: a base, an annular body disposed in the passage and located at the inlet Between the end and the outlet end; a first sleeve is generally hollow cylindrical, the bottom end is disposed on the surface of the base, and a plurality of perforations are formed on the side; a second sleeve is hollow a cylindrical shape, located in the first sleeve, and the bottom end is disposed on the surface of the base, and a plurality of perforations are formed on the side surface, and a distance between the outer wall surface of the second sleeve and the inner wall surface of the first sleeve The system is connected to the drive shaft, and includes a first piston portion disposed in the second sleeve and is configured to The inner side of the two sleeves corresponds to the columnar body and is movable in the axial direction of the second sleeve a second piston portion disposed between the first sleeve and the second sleeve, and is a cylindrical body corresponding to the inner side surface of the first sleeve and the outer side surface of the second sleeve, and The first piston portion is moved together in the axial direction of the second sleeve. The flow control sleeve set according to claim 1, wherein the base surface has a first flange protruding upward from the first sleeve, and the inner side or the outer side of the bottom end of the first sleeve is Reaching against the first flange. The flow control sleeve set according to claim 1, wherein the base surface has a second flange protruding upward from a position opposite to the second sleeve, and an inner side of the bottom end of the second sleeve or The outer side surface abuts against the second flange. The flow control sleeve set of any one of claims 1 to 3, wherein the base is a circular annular body. The flow control sleeve set of claim 4, wherein the valve plug further comprises a top cover coupled to the first piston portion and the second piston portion and located at the first sleeve Above the second sleeve. The flow control sleeve set of claim 5, wherein the shapes of the perforations are circular, square, elliptical or polygonal.