CN206190914U - High pressure cage single seat control valve - Google Patents
High pressure cage single seat control valve Download PDFInfo
- Publication number
- CN206190914U CN206190914U CN201621145745.8U CN201621145745U CN206190914U CN 206190914 U CN206190914 U CN 206190914U CN 201621145745 U CN201621145745 U CN 201621145745U CN 206190914 U CN206190914 U CN 206190914U
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- China
- Prior art keywords
- valve
- valve body
- high pressure
- medium
- pressure cage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Lift Valve (AREA)
Abstract
The utility model discloses a high pressure cage single seat control valve, include valve body and last valve body down, pass through stud, hexagon nut fixed connection down between valve body and the last valve body seted up medium inflow path down on the valve body upward seted up medium outflow passageway on the valve body go up and still to have installed the disk seat in the valve body, set up the first medium via hole that is linked together with medium inflow path in the bottom of this disk seat a plurality of second medium via holes have been seted up on the lateral wall of disk seat, still install the case in the disk seat still cover on the conical sealing surface of case and be equipped with the sclerosis inoxidizing coating, the upper portion of case is connected with the valve rod, and upwards stretch out on the upper portion of this valve rod go up the valve body. It is showing the effect: lay the sclerosis inoxidizing coating of making by the exotic material on sealed surface of case, consequently improved anti cavitation erosion, the washing out ability of case, prolonged the life of valve.
Description
Technical field
The utility model is related to single seat control valve production technical field, is a kind of high pressure cage single seat control specifically
Valve processed.
Background technology
During Automated condtrol, the use of valve is controlled widely, single-seat valve is even more and obtain big as conventional valve
Amount is used.With the high speed development of industrial automation, the requirement more and more higher to controlling valve.
In many High Pressure Difference occasions, medium is also easy to produce interior steaming and cavitation, and damage of this phenomenon to valve is especially big, easily right
The sealing surface of valve is damaged, and has a strong impact on the service life of valve.Can protect valve body not by flash distillation and cavitation although there is sleeve
Destroy, but valve element cannot be protected.
The content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of high pressure cage single seat control valve, the control
Valve processed carries out protection Design on the surface of the sealing surface of valve element, it is possible to increase the anti-cavitation of valve element, scouring capability, extends making for valve
Use the life-span
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of high pressure cage single seat controls valve, and it is critical only that：Including lower valve body and upper valve body, the lower valve body and upper valve
It is fixedly connected by stud, hex nut between body, medium flow channel is offered in the lower valve body, on described
Medium flow pass is offered on valve body, valve seat is also equiped with the upper valve body, offered and Jie in the bottom of the valve seat
The first medium via that matter flow channel is connected, offers multiple circumferentially distributed and and medium flow fields on the side wall of the valve seat
Go out the second medium via that passage is connected, valve element is also equipped with the valve seat, the conical seal (contact) face support of the valve element bottom
On the first medium via, be also covered with hardening overcoat on the conical seal (contact) face of the valve element, the valve element it is upper
Portion is connected with valve rod, and the top of the valve rod protrudes upward the upper valve body.
When in use, valve rod is connected and while move up and down this structure with the output shaft of executing agency, realizes the aperture of valve
Regulation；The hardening overcoat being made up of special material is laid on the surface of the sealing surface of valve element, therefore has improve the anti-of valve element
Cavitation erosion, scouring capability, extend the service life of valve；And multiple second medium vias are set, effectively reduce medium throttling
Diffusion and the noise caused by expansion, realize the low noise function of control valve.
Further, in order to ensure control valve sealing, stuffing-box group is additionally provided between the valve rod and upper valve body
Part, described filler letter component includes the filler and gland that set gradually from the bottom to top.
Further, pressing plate is additionally provided with above described filler letter component, the pressing plate is fixed on institute by connecting bolt
State on upper valve body.
By said structure, position of the packing box assembly in valve body is withstood using pressing plate, and ensure in valve body
Liquid does not spill over, and plays sealing effectiveness.
Further, in order to ensure to control the sealing of valve, between described filler cover plate and valve rod and gland
O-ring is provided between upper valve body.
Further, it is additionally provided with round nut in the upper end of the upper valve body.By the round nut, in that context it may be convenient in realization
Connection between valve body and executing agency, simplifies connection operation,
Further, for the ease of control valve installation fix, the upper valve body medium flow into passway and under
The medium outflow passway of valve body is respectively and fixedly provided with flange.
Remarkable result of the present utility model is：Simple structure, it is novel in design, the surface of the sealing surface of valve element laid by
The hardening overcoat that special material is made, therefore the anti-cavitation of valve element, scouring capability are improve, extend the service life of valve.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the valve element.
Specific embodiment
Specific embodiment of the present utility model and operation principle are described in further detail below in conjunction with the accompanying drawings.
As shown in Figures 1 and 2, a kind of high pressure cage single seat control valve, including lower valve body 1 and upper valve body 4, the lower valve body
It is fixedly connected by stud 15, hex nut 16 between 1 and upper valve body 4, medium inflow is offered in the lower valve body 1
Passage 2, offers medium flow pass 5 on the upper valve body 4, valve seat 3 is also equiped with the upper valve body 4, in the valve
The bottom of seat 3 offers the first medium via being connected with medium flow channel 2, is offered on the side wall of the valve seat 3
Multiple second medium vias that are circumferentially distributed and being connected with medium flow pass 5, valve element 7 is also equipped with the valve seat 3, should
The conical seal (contact) face of the bottom of valve element 7 is supported on the first medium via, is also covered on the conical seal (contact) face of the valve element 7
There is hardening overcoat 6, the top of the valve element 7 is connected with valve rod 8, and the top of the valve rod 8 protrudes upward the upper valve body 4,
The upper end of the upper valve body 4 is additionally provided with round nut 14.
Referring to accompanying drawing 1, packing box assembly is additionally provided between the valve rod 8 and upper valve body 4, described filler letter component includes
The filler 9 that sets gradually from the bottom to top and gland 10, between described filler gland 10 and valve rod 8 and gland 10
O-ring 13 is provided between upper valve body 4, pressing plate 11 is additionally provided with above described filler letter component, the pressing plate 11 passes through
Connecting bolt 12 is fixed on the upper valve body 4.
It can further be seen from figure 1 that the outlet of the entrance point and medium flow pass 5 in the medium flow channel 2
End is respectively and fixedly provided with flange 17.
This control valve has laid the hardening overcoat 6 being made up of special material on the surface of the sealing surface of valve element 7, such as Fig. 2 institutes
Show, therefore improve the anti-cavitation of valve element 7, scouring capability, and then extend the service life of valve.
Claims (6)
1. a kind of high pressure cage single seat controls valve, it is characterised in that：Including lower valve body (1) and upper valve body (4), the lower valve body
(1) it is fixedly connected by stud (15), hex nut (16) between upper valve body (4), is opened up in the lower valve body (1)
There is medium flow channel (2), medium flow pass (5) is offered on the upper valve body (4), in the upper valve body (4) also
Valve seat (3) is equiped with, the first medium via being connected with medium flow channel (2) is offered in the bottom of the valve seat (3),
Multiple second medium vias that are circumferentially distributed and being connected with medium flow pass (5) are offered on the side wall of the valve seat (3),
Valve element (7) is also equipped with the valve seat (3), the conical seal (contact) face of valve element (7) bottom is supported on the first medium via
On, hardening overcoat (6) is also covered with the conical seal (contact) face of the valve element (7), the top of the valve element (7) is connected with valve
Bar (8), the top of the valve rod (8) protrudes upward the upper valve body (4).
2. high pressure cage single seat according to claim 1 controls valve, it is characterised in that：In the valve rod (8) and upper valve body
(4) packing box assembly is additionally provided between, described filler letter component includes the filler (9) and gland that set gradually from the bottom to top
(10)。
3. high pressure cage single seat according to claim 2 controls valve, it is characterised in that：In the top of described filler letter component
Pressing plate (11) is additionally provided with, the pressing plate (11) is fixed on the upper valve body (4) by connecting bolt (12).
4. high pressure cage single seat according to claim 2 controls valve, it is characterised in that：In described filler gland (10) and valve
O-ring (13) is provided between bar (8) and between gland (10) and upper valve body (4).
5. high pressure cage single seat according to claim 1 controls valve, it is characterised in that：In the upper end of the upper valve body (4)
It is additionally provided with round nut (14).
6. high pressure cage single seat according to claim 1 controls valve, it is characterised in that：In the medium flow channel (2)
Entrance point and the port of export of medium flow pass (5) be respectively and fixedly provided with flange (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145745.8U CN206190914U (en) | 2016-10-21 | 2016-10-21 | High pressure cage single seat control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145745.8U CN206190914U (en) | 2016-10-21 | 2016-10-21 | High pressure cage single seat control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190914U true CN206190914U (en) | 2017-05-24 |
Family
ID=58732514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621145745.8U Active CN206190914U (en) | 2016-10-21 | 2016-10-21 | High pressure cage single seat control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883036A (en) * | 2017-11-27 | 2018-04-06 | 李莉 | A kind of lifesaving quick release valve |
-
2016
- 2016-10-21 CN CN201621145745.8U patent/CN206190914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883036A (en) * | 2017-11-27 | 2018-04-06 | 李莉 | A kind of lifesaving quick release valve |
| CN107883036B (en) * | 2017-11-27 | 2019-07-02 | 李莉 | A kind of lifesaving quick release valve |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |