CN210196517U

CN210196517U - Regulating valve

Info

Publication number: CN210196517U
Application number: CN201920340426.XU
Authority: CN
Inventors: Shuo Li; 李硕; Zhuan Qi; 祁专
Original assignee: Samson Control Equipment (china) Co Ltd
Current assignee: Samson Control Equipment (china) Co Ltd; Samson Controls China Co Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-03-27
Anticipated expiration: 2029-03-18

Abstract

The utility model provides a regulating valve, include: the valve body is internally provided with a flow passage; the valve seat is arranged in the flow channel and is provided with a flow guide hole communicated with the flow channel; and the valve core is rotatably arranged on the valve seat and can be communicated with or close the flow guide hole when the valve core rotates. According to the utility model discloses a governing valve, the case is rotatably established on the disk seat, the case can switch on or seal the water conservancy diversion hole when the case is rotatory, realize opening or closing of valve through rotatory case, the rotation type case is sealed for the face with the sealing of disk seat, sealed contact surface is great, better leakproofness has, the life of extension case and disk seat, rotation type case and disk seat are plane shearing motion in the use, surface-attached deposit can be clear away in both motion processes, be difficult for producing and block up, can bear great valve body pressure differential and higher temperature environment, this governing valve machining precision requires not highly, and the processing of being convenient for, the installation is maintained portably.

Description

Regulating valve

Technical Field

The utility model relates to the technical field of valves, in particular to governing valve.

Background

The regulating valve is a common valve, as shown in fig. 1a and fig. 1b, the throttling part of the straight-through single-seat regulating valve is composed of a valve seat 1 and a valve core 2, the valve core 2 is driven by an actuating mechanism to move up and down, so that the opening and closing functions of the valve are achieved, and the sealing surfaces of the valve core 2 and the valve seat 1 are small. Although the valve core and the valve seat of the straight-through single-valve-seat regulating valve have advantages in practical use, the straight-through single-valve-seat regulating valve has many defects, such as high processing difficulty, easy abrasion in matching and the like. The straight-through single-valve-seat regulating valve mainly has the following defects: 1) the sealing surfaces of the valve core and the valve seat are very small, and when the sealing surfaces are mutually contacted, the mutual contact area of the two sealing surfaces is smaller; when the medium is not clean and continuously impacts and collides with the sealing surface, the sealing surface is easily damaged, so that the valve core and the valve seat can be sealed untight after being used for a long time, and the sealing performance is reduced; in addition, when the opening position of the valve is not large, a gap formed by the valve and the valve is small, and deposits are easy to remain; 2) the dimensional tolerance requirements of the valve core and the valve seat are very high, although the existing processing technology is continuously improved and the processing equipment capability is continuously improved, the dimensional tolerance requirements of all parts cannot be met, and particularly the dimensional tolerance requirements in the drawing are difficult to meet for the valve core and the valve seat with larger sizes; the sealing effect after assembly can be influenced by slight deviation of part processing, and when the sealing performance of the assembled valve core and the assembled valve seat cannot reach the ideal state, the damage of the valve core and the valve seat can be accelerated in the using process; 3) the valve core and the valve seat are easily affected by the working environment after being used, and are easily damaged and need to be replaced periodically particularly in a severe environment, so that the maintenance cost is high; 4) the pressure difference allowed by the two sides of the valve core and the valve seat is small in the operation process of the straight-through single-valve-seat valve, and the straight-through single-valve-seat valve cannot bear a large temperature environment.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a governing valve for solve case and valve body leakproofness not good, the processing degree of difficulty is big, the poor problem of performance.

In order to solve the technical problem, the utility model discloses a following technical scheme:

according to the utility model discloses governing valve includes:

a valve body defining a flow passage therein;

the valve seat is arranged in the flow channel and is provided with a flow guide hole communicated with the flow channel;

the valve core is rotatably arranged on the valve seat and can be communicated with or close the diversion hole when rotating.

Furthermore, the flow passage comprises a first flow passage and a second flow passage, one end of the first flow passage is positioned below the second flow passage, the valve seat is arranged between the first flow passage and the second flow passage, and the flow guide hole is communicated with the first flow passage and the second flow passage.

Furthermore, a groove is formed in the valve seat, the flow guide hole is formed in the bottom of the groove, the valve element is rotatably arranged in the groove, and the valve element can be communicated with or close the flow guide hole when the valve element is rotated.

Further, the cross section of the groove is formed into a circular shape, the valve core is formed into a disc with a slotted hole matched with the groove, and the slotted hole is communicated with the flow guide hole when the disc rotates to a preset position.

Further, the number of the diversion holes is equal to that of the slotted holes, the diversion holes are formed into fan-shaped rings, and the slotted holes are formed into fan-shaped sectors.

Further, the flow guide holes comprise two flow guide holes which are uniformly distributed at intervals along the circumferential direction of the bottom of the groove, and the slotted holes comprise two slotted holes which are uniformly distributed at intervals along the circumferential direction of the disc.

Further, the valve seat is formed in a columnar shape, external threads are formed on the outer side wall of the valve seat, internal threads matched with the external threads are formed on the inner side wall of the flow passage, and the valve seat is in threaded connection with the inner side wall of the flow passage.

Furthermore, the regulating valve also comprises a valve rod, one end of the valve rod is connected with the valve core, and the valve rod can drive the valve core to rotate when rotating.

Further, the regulating valve also comprises a driving mechanism, and the driving mechanism is connected with the other end of the valve rod and is used for driving the valve rod to rotate.

Furthermore, the regulating valve also comprises a bracket, the driving mechanism is arranged on the bracket, and one end of the valve rod rotatably penetrates through the bracket to be connected with the valve core.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

according to the utility model discloses a governing valve, the case is rotatably established on the disk seat, the case can switch on or seal the water conservancy diversion hole when the case is rotatory, realize opening or closing of valve through rotatory case, the rotation type case is sealed for the face with the sealing of disk seat, sealed contact surface is great, better leakproofness has, the life of extension case and disk seat, rotation type case and disk seat are plane shearing motion in the use, surface-attached deposit can be clear away in both motion processes, be difficult for producing and block up, can bear great valve body pressure differential and higher temperature environment, this governing valve machining precision requires not highly, and the processing of being convenient for, the installation is maintained portably.

Drawings

FIG. 1a is a schematic structural view of a conventional regulator valve;

FIG. 1b is an enlarged schematic view of portion A of FIG. 1 a;

FIG. 2a is a front view of a valve seat in a regulator valve according to an embodiment of the present invention;

FIG. 2b is a top view of a valve seat in a regulator valve according to an embodiment of the present invention;

fig. 3a is a front view of a valve element and a valve stem of a regulating valve according to an embodiment of the present invention;

fig. 3b is a top view of the connection between the valve element and the valve stem in the regulating valve of the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a regulating valve according to an embodiment of the present invention;

fig. 5 is another schematic structural diagram of a regulating valve according to an embodiment of the present invention.

Reference numerals

A valve body 10; a first flow channel 11; a second flow passage 12;

a valve seat 20; a diversion hole 21; a groove 22;

a valve core 30; the slot 31;

a valve stem 40;

a drive mechanism 50;

a bracket 60.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

The regulating valve according to an embodiment of the present invention will be described first in detail with reference to the accompanying drawings.

As shown in fig. 2a to 5, a regulator valve according to an embodiment of the present invention includes a valve body 10, a valve seat 20, and a valve element 30.

Specifically, a flow passage is defined in the valve body 10, the valve seat 20 is disposed in the flow passage, the guide hole 21 communicating with the flow passage is disposed on the valve seat 20, the valve element 30 is rotatably disposed on the valve seat 20, and the valve element 30 can open or close the guide hole 21 when the valve element 30 rotates.

That is to say, a flow channel may be defined in the valve body 10, the valve seat 20 may be disposed in the flow channel, and the valve seat 20 may be disposed with the diversion holes 21, the number and the shape of the diversion holes 21 may be reasonably selected, for example, one diversion hole 21 may be provided, the diversion hole 21 is communicated with the flow channel, the valve core 30 is rotatably disposed on the valve seat 20, the rotary valve core 30 and the valve seat 20 do a planar shearing motion in the using process, the deposit attached to the surface may be removed in the moving process of the two, the blockage is not easily generated, and the large contact surface between the valve core 30 and the valve seat 20 can bear a large valve body pressure difference and a high temperature environment. The valve core 30 can open or close the diversion hole 21 when the valve core 30 rotates, for example, the valve core 30 opens the diversion hole 21 when the valve core 30 rotates to the first position, so that the whole flow passage is in a conduction state, and the valve core 30 closes the diversion hole 21 when the valve core 30 rotates to the second position, so that the whole flow passage is in a non-conduction state, and the opening degree of the regulating valve can be regulated by regulating the rotation position of the valve core 30.

The utility model discloses an among the governing valve, the case is rotatably established on the disk seat, the case can switch on or seal the water conservancy diversion hole when the case is rotatory, realize opening or closing of valve through rotatory case, the rotation type case can realize that the case is sealed for the face with the disk seat, sealed contact surface is great, better leakproofness has, the life of extension case and disk seat, rotation type case and disk seat are the plane shearing motion in the use, surface-adhered deposit can be clear away in both motion processes, be difficult for producing and block up, can bear great valve body pressure differential and higher temperature environment, this governing valve machining precision requires not highly, and the processing of being convenient for, and the installation is maintained portably.

The utility model discloses an in some embodiments, the runner can include first runner 11 and second runner 12, the concrete shape of first runner 11 and second runner 12 can be according to the rational in infrastructure design of valve body 10, the one end of first runner 11 can be located the below of second runner 12, disk seat 20 is established between first runner 11 and second runner 12, and water conservancy diversion hole 21 intercommunication first runner 11 and second runner 12, can make whole runner switch on through water conservancy diversion hole 21, case 30 can switch on or seal water conservancy diversion hole 21 when case 30 is rotatory, thereby adjust the runner through case 30's rotation and switch on or seal, and then realize the regulation of the aperture of governing valve.

In other embodiments of the utility model, can be formed with recess 22 on the valve seat 20, water conservancy diversion hole 21 can be established in the bottom of recess 22, and case 30 rotatably establishes in recess 22, and case 30 can switch on or seal water conservancy diversion hole 21 during rotatory case 30, rotatably establishes case 30 in recess 22 and can make case 30 rotate steadily, guarantees the stability that governing valve aperture was adjusted.

According to the utility model discloses a some embodiments, the cross-section of recess 22 can be formed into circularly, case 30 can be formed into the disc, the disc matches with recess 22, slotted hole 31 has on the disc, slotted hole 31 and water conservancy diversion hole 21 intercommunication when the disc is rotatory to preset position, when the disc is rotatory to skew preset position, other positions except slotted hole 31 on the disc can seal water conservancy diversion hole 21, make slotted hole 31 and water conservancy diversion hole 21 not communicate, be convenient for stably adjust the aperture of water conservancy diversion hole 21 through the disc, and then realize the aperture regulation of governing valve.

Alternatively, the number of the pilot holes 21 and the slotted holes 31 may be equal, the pilot holes 21 may be formed in a fan-shaped ring shape, the slotted holes 31 may be formed in a fan shape, and the sizes of the pilot holes 21 and the slotted holes 31 are matched to facilitate adjustment of the opening of the regulating valve. The utility model discloses a in some embodiments, water conservancy diversion hole 21 can include two, and two water conservancy diversion holes 21 can be followed the even spaced apart distribution in circumference of the bottom of recess 22, and slotted hole 31 can include two, and two slotted holes 31 can be followed the even spaced apart distribution in circumference of disc for water conservancy diversion hole 21 and slotted hole 31 correspond when switching on, reduce fluidic resistance, the regulation of the regulating valve aperture of being convenient for.

The utility model discloses an in other embodiments, disk seat 20 can form to the column, and disk seat 20's lateral wall can be formed with the external screw thread, can be formed with the internal thread that matches with the external screw thread on the inside wall of runner, and disk seat 20 and the inside wall spiro union of runner are through external screw thread and internal screw thread spiro union, convenient to install and dismantle.

According to some embodiments of the utility model, the governing valve can also include valve rod 40, and valve rod 40's one end can link to each other with case 30, and valve rod 40 can link to each other with case 30 is perpendicular, can drive case 30 when valve rod 40 is rotatory, is convenient for control case 30's rotation.

According to other embodiments of the present invention, the adjusting valve may further include a driving mechanism 50, the driving mechanism 50 is connected to the other end of the valve rod 40, and the driving mechanism 50 may be used to drive the valve rod 40 to rotate.

In some embodiments of the present invention, the adjusting valve may further include a bracket 60, the driving mechanism 50 may be disposed on the bracket 60, one end of the valve rod 40 may rotatably pass through the bracket 60 to be connected to the valve core 30, and the stability of the valve rod 40 during rotation may be ensured by the bracket 60.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A regulator valve, comprising:

a valve body defining a flow passage therein;

2. The regulator valve according to claim 1, wherein the flow passage includes a first flow passage and a second flow passage, one end of the first flow passage is located below the second flow passage, the valve seat is provided between the first flow passage and the second flow passage, and the pilot hole communicates the first flow passage and the second flow passage.

3. The regulating valve according to claim 1, wherein a groove is formed on the valve seat, the guiding hole is formed at the bottom of the groove, the valve core is rotatably arranged in the groove, and the valve core can conduct or close the guiding hole when the valve core is rotated.

4. The regulator valve according to claim 3, wherein the groove is formed in a circular shape in cross section, and the spool is formed as a disk with a groove hole that matches the groove, the groove hole communicating with the pilot hole when the disk is rotated to a predetermined position.

5. The regulator valve according to claim 4, wherein said pilot holes and said slots are equal in number, said pilot holes being formed as a sector ring and said slots being formed as sectors.

6. The regulating valve of claim 4 wherein said pilot holes comprise two, two said pilot holes being evenly spaced circumferentially about the bottom of said groove and said slots comprise two, two said slots being evenly spaced circumferentially about said disk.

7. The regulator valve according to claim 1, wherein the valve seat is formed in a cylindrical shape, an outer side wall of the valve seat is formed with an external thread, an inner side wall of the flow passage is formed with an internal thread matching the external thread, and the valve seat is screwed with the inner side wall of the flow passage.

8. The regulator valve according to claim 1, further comprising a valve stem, wherein one end of the valve stem is connected to the valve element, and wherein rotation of the valve stem causes the valve element to rotate.

9. The regulator valve according to claim 8, further comprising an actuating mechanism coupled to the other end of the valve stem for rotating the valve stem.

10. The regulator valve of claim 9 further comprising a bracket, wherein the actuator is disposed on the bracket, and wherein one end of the valve stem is rotatably coupled to the valve spool through the bracket.