阅读说明：本技术 一种调节阀 (Regulating valve ) 是由 李硕 祁专 于 2019-03-18 设计创作，主要内容包括：本发明提供一种调节阀,包括：阀体,阀体内限定有流道；阀座,阀座设在流道内且阀座上设有与流道连通的导流孔；阀芯,阀芯可旋转地设在阀座上,阀芯旋转时阀芯能够导通或封闭导流孔。根据本发明的调节阀,阀芯可旋转地设在阀座上,阀芯旋转时阀芯能够导通或封闭导流孔,通过旋转阀芯来实现阀门的开启或关闭,旋转式阀芯与阀座的密封为面密封,密封接触面较大,具有较好的密封性,延长阀芯与阀座的使用寿命,旋转式阀芯和阀座在使用过程中是做平面剪切运动,表面附着的堆积物在两者运动过程中可被清除,不易产生堵塞,能够承受较大的阀体压差和较高的温度环境,该调节阀加工精度要求不高,便于加工,安装维护简便。(The present invention provides a regulator valve comprising: 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 regulating valve, the valve core is rotatably arranged on the valve seat, the valve core can be communicated with or close the flow guide hole when the valve core rotates, the valve is opened or closed by rotating the valve core, the rotary valve core and the valve seat are sealed in a surface mode, the sealing contact surface is large, the sealing performance is good, the service life of the valve core and the valve seat is prolonged, the rotary valve core and the valve seat do plane shearing movement in the use process, deposits attached to the surfaces can be removed in the movement process of the rotary valve core and the valve seat, blocking is not prone to occurring, the large valve body pressure difference and the high temperature environment can be borne, and the regulating valve is low in machining precision requirement, convenient to machine and simple and convenient to install and maintain.)

1. A regulator valve, comprising:

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.

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.

Technical Field

The invention relates to the technical field of valves, in particular to a regulating 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.

Disclosure of Invention

In view of the above, the invention provides a regulating valve, which is used for solving the problems of poor sealing performance, high processing difficulty and poor service performance of a valve core and a valve body.

In order to solve the technical problems, the invention adopts the following technical scheme:

according to an embodiment of the invention, a regulator valve comprises:

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 technical scheme of the invention has the following beneficial effects:

according to the regulating valve, the valve core is rotatably arranged on the valve seat, the valve core can be communicated with or close the flow guide hole when the valve core rotates, the valve is opened or closed by rotating the valve core, the rotary valve core and the valve seat are sealed in a surface mode, the sealing contact surface is large, the sealing performance is good, the service life of the valve core and the valve seat is prolonged, the rotary valve core and the valve seat do plane shearing movement in the use process, deposits attached to the surfaces can be removed in the movement process of the rotary valve core and the valve seat, blocking is not prone to occurring, the large valve body pressure difference and the high temperature environment can be borne, and the regulating valve is low in machining precision requirement, convenient to machine and simple and convenient to install and maintain.

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 in accordance with an embodiment of the present invention;

FIG. 3a is a front view of a valve cartridge coupled to a valve stem in a regulator valve in accordance with an embodiment of the present invention;

FIG. 3b is a top view of the connection of the valve cartridge to the valve stem of the regulator valve in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural view of a regulator valve according to an embodiment of the present invention;

fig. 5 is another schematic structural diagram of the regulator valve according to the 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 objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

The regulator 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, the regulator valve according to the embodiment of the present invention includes a valve body 10, a valve seat 20, and a valve spool 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.

In the regulating valve, the valve core is rotatably arranged on the valve seat, the valve core can conduct or close the flow guide hole when the valve core rotates, the valve is opened or closed by rotating the valve core, the rotary valve core can realize that the sealing between the valve core and the valve seat is surface sealing, the sealing contact surface is larger, the sealing property is better, the service life of the valve core and the valve seat is prolonged, the rotary valve core and the valve seat do plane shearing movement in the using process, deposits attached to the surfaces can be removed in the movement process of the rotary valve core and the valve seat, the blockage is not easy to generate, the larger valve body pressure difference and the higher temperature environment can be borne, the regulating valve has low processing precision requirement, is convenient to process, and is simple and convenient to install and.

In some embodiments of the present invention, the flow passages may include a first flow passage 11 and a second flow passage 12, the specific shapes of the first flow passage 11 and the second flow passage 12 may be reasonably designed according to the structure of the valve body 10, one end of the first flow passage 11 may be located below the second flow passage 12, the valve seat 20 is disposed between the first flow passage 11 and the second flow passage 12, and the diversion hole 21 communicates with the first flow passage 11 and the second flow passage 12, the whole flow passage may be conducted through the diversion hole 21, and the valve element 30 may be conducted or closed by the valve element 30 when the valve element 30 rotates, so that the conduction or the closure of the flow passages is adjusted by the rotation of the valve element 30, and further, the adjustment of the opening degree of the adjustment valve is achieved.

In other embodiments of the present invention, the groove 22 may be formed on the valve seat 20, the diversion hole 21 may be disposed at the bottom of the groove 22, the valve element 30 may be rotatably disposed in the groove 22, the valve element 30 may be capable of conducting or closing the diversion hole 21 when the valve element 30 is rotated, and the valve element 30 may be rotatably disposed in the groove 22, so that the valve element 30 may be stably rotated, and stability of adjustment of the opening degree of the adjustment valve may be ensured.

According to some embodiments of the present invention, the cross-section of the groove 22 may be formed in a circular shape, the valve core 30 may be formed in a disk, the disk is matched with the groove 22, the disk has a slot 31, the slot 31 is communicated with the diversion hole 21 when the disk rotates to a predetermined position, when the disk rotates to deviate from the predetermined position, the diversion hole 21 is closed by other positions on the disk except the slot 31, so that the slot 31 is not communicated with the diversion hole 21, and the opening of the diversion hole 21 is conveniently and stably adjusted by the disk, thereby realizing the opening adjustment of the adjustment 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. In some embodiments of the present invention, the two diversion holes 21 may be provided, the two diversion holes 21 may be uniformly spaced apart along the circumferential direction of the bottom of the groove 22, the two slotted holes 31 may be provided, and the two slotted holes 31 may be uniformly spaced apart along the circumferential direction of the disk, so that the diversion holes 21 and the slotted holes 31 correspond to each other when being communicated, thereby reducing the resistance of the fluid and facilitating the adjustment of the opening of the regulating valve.

In other embodiments of the present invention, the valve seat 20 may be formed in a cylindrical shape, an external thread may be formed on an outer sidewall of the valve seat 20, an internal thread matched with the external thread may be formed on an inner sidewall of the flow passage, and the valve seat 20 is screwed with the inner sidewall of the flow passage, so that the valve seat is convenient to mount and dismount by screwing the external thread and the internal thread.

According to some embodiments of the present invention, the regulating valve may further include a valve rod 40, one end of the valve rod 40 may be connected to the valve core 30, the valve rod 40 may be vertically connected to the valve core 30, and the valve rod 40 may rotate to drive the valve core 30 to rotate, so as to control the rotation of the valve core 30.

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

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

According to the regulating valve, the valve core is rotatably arranged on the valve seat, the valve core can be communicated with or close the flow guide hole when the valve core rotates, the valve is opened or closed by rotating the valve core, the rotary valve core and the valve seat are sealed in a surface mode, the sealing contact surface is large, the sealing performance is good, the service life of the valve core and the valve seat is prolonged, the rotary valve core and the valve seat do plane shearing movement in the use process, deposits attached to the surfaces can be removed in the movement process of the rotary valve core and the valve seat, blocking is not prone to occurring, the large valve body pressure difference and the high temperature environment can be borne, and the regulating valve is low in machining precision requirement, convenient to machine and simple and convenient to install and maintain.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application 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.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.