CN214466117U - Scouring-resistant gate valve - Google Patents
Scouring-resistant gate valve Download PDFInfo
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- CN214466117U CN214466117U CN202120385601.4U CN202120385601U CN214466117U CN 214466117 U CN214466117 U CN 214466117U CN 202120385601 U CN202120385601 U CN 202120385601U CN 214466117 U CN214466117 U CN 214466117U
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- valve
- sleeve
- erosion
- valve seat
- resistant
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Abstract
The utility model relates to a gate valve technical field especially relates to a resistant sluice valve that erodees, include: the valve seat is arranged in the cavity of the valve body, and an anti-erosion orifice plate is arranged on the valve seat; the sleeve is arranged in the cavity of the valve body and is arranged on the valve seat; the valve core is detachably connected with the valve seat and is in sliding connection with the sleeve; the valve rod is connected with the valve core; the throttling sleeve is arranged in the cavity of the valve seat, and a plurality of through holes are formed in the throttling sleeve. The utility model provides a medium directly erodees the problem that the case damaged the case easily among the prior art. According to the erosion-resistant gate valve, the erosion-resistant pore plate is arranged on the valve seat, the throttling sleeve is arranged in the valve seat, and under the combined action of the throttling sleeve and the erosion-resistant pore plate, even under the condition of high pressure difference, the flow passes through the erosion-resistant pore plate and the throttling sleeve and then passes through the valve core, so that direct erosion is prevented, the service life is greatly prolonged, and the use cost is reduced.
Description
Technical Field
The utility model relates to a gate valve technical field especially relates to a wash-resistant gate valve.
Background
Because the existing stop valve is used for a long time under the condition of high pressure difference, the valve core is easy to damage and generate inner leakage because the flow rate is low, high and direct erosion of the valve core, and if the internal part needs to be replaced due to damage, the stop valve is very inconvenient and has high maintenance cost.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a scouring-resistant gate valve for solving the problem that the valve core is easily damaged by directly eroding the valve core by the medium in the prior art. According to the erosion-resistant gate valve, the erosion-resistant pore plate is arranged on the valve seat, the throttling sleeve is arranged in the valve seat, and under the combined action of the throttling sleeve and the erosion-resistant pore plate, even under the condition of high pressure difference, the flow passes through the erosion-resistant pore plate and the throttling sleeve and then passes through the valve core, so that direct erosion is prevented, the service life is greatly prolonged, and the use cost is reduced. Under the condition of high pressure difference, the medium cannot erode the valve core, so that the service cycle is prolonged, and the maintenance cost is reduced.
In order to realize above-mentioned purpose and other relevant purposes, the utility model provides a resistant gate valve that erodees, resistant gate valve that erodees includes:
a valve body;
the valve seat is arranged in the cavity of the valve body, and an anti-erosion orifice plate is arranged on the valve seat;
a sleeve mounted in a cavity of the valve body, the sleeve mounted on the valve seat;
the valve core is detachably connected with the valve seat and is in sliding connection with the sleeve;
the valve rod is connected with the valve core;
the throttling sleeve is arranged in the cavity of the valve seat, and a plurality of through holes are formed in the throttling sleeve.
According to the erosion-resistant gate valve, the erosion-resistant pore plate is arranged on the valve seat, the throttling sleeve is arranged in the valve seat, and under the combined action of the throttling sleeve and the erosion-resistant pore plate, even under the condition of high pressure difference, the flow passes through the erosion-resistant pore plate and the throttling sleeve and then passes through the valve core, so that direct erosion is prevented, the service life is greatly prolonged, and the use cost is reduced. Under the condition of high pressure difference, the medium cannot erode the valve core, so that the service cycle is prolonged, and the maintenance cost is reduced.
The throttling sleeve and the anti-erosion orifice plate are added on the valve seat, a medium flows into the inner cavity of the valve seat after passing through a plurality of small holes (preventing the medium from flowing out quickly) on the anti-erosion orifice plate at the lower part of the valve seat, and the medium releases the pressure of the medium at the moment to play a role in reducing pressure; the medium flows into the throttling sleeve again, and the pressure of the medium is released again through the throttling sleeve; then flows into the upper cavity of the valve seat and flows out through the sealing surface of the valve core and the valve seat. After the medium is throttled and depressurized twice, the sealing surfaces of the valve core and the valve seat can be well protected from cavitation erosion. And after the medium flows out of the sealing surface, the medium enters the anti-scouring groove, and the medium can still be prevented from flowing out quickly to generate cavitation, so that the sealing surface of the valve core and the valve seat is protected.
In an embodiment of the present invention, the valve seat is close to one end of the valve element and is provided with a groove, the throttling sleeve is fixed in the groove, and the throttling sleeve is installed above the erosion-resistant orifice plate.
In an embodiment of the present invention, the throttle sleeve is made of tungsten carbide.
In an embodiment of the utility model, the valve body with first winding gasket is installed to the junction of disk seat, second winding gasket is installed to the junction of valve body and valve gap, the valve gap is installed the top of valve body.
In an embodiment of the present invention, the valve body is connected to the valve cover through the first connecting member.
In an embodiment of the utility model, the valve rod runs through the valve gap, the valve rod with install the filler ring between the valve gap, gland is installed to the top of filler ring, gland plate is installed to gland plate's top, gland plate with the valve gap passes through the second connecting piece and connects.
In an embodiment of the present invention, a gasket is installed below the packing ring.
In an embodiment of the present invention, the top end of the valve rod is connected to the handwheel mechanism.
As above, the utility model discloses a resistant sluice valve that erodees has following beneficial effect: according to the erosion-resistant gate valve, the erosion-resistant pore plate is arranged on the valve seat, the throttling sleeve is arranged in the valve seat, and under the combined action of the throttling sleeve and the erosion-resistant pore plate, even under the condition of high pressure difference, the flow passes through the erosion-resistant pore plate and the throttling sleeve and then passes through the valve core, so that direct erosion is prevented, the service life is greatly prolonged, and the use cost is reduced. Under the condition of high pressure difference, the medium cannot erode the valve core, so that the service cycle is prolonged, and the maintenance cost is reduced.
Drawings
Fig. 1 is an overall schematic view of a erosion-resistant gate valve according to an embodiment of the present invention.
Fig. 2 shows a schematic diagram of the medium movement of a erosion-resistant gate valve according to an embodiment of the present invention.
Description of the element reference numerals
1-a valve body; 2-valve seat; 3-erosion resistant orifice plate; 4-a first winding shim; 5-a sleeve; 6-valve core; 7-a valve stem; 8-valve cover; 9-a second winding shim; 10-a first connector; 11-a packing ring; 12-a packing gland; 13-a packing press plate; 14-a second connector; 15-a liner; 16-a throttle sleeve; 17-hand wheel mechanism.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1-2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Referring to fig. 1, the present invention provides a wash-resistant gate valve, which includes:
a valve body 1;
the valve seat 2 is installed in a cavity of the valve body 1, and an anti-erosion orifice plate 3 is arranged on the valve seat 2; a first winding gasket 4 is arranged at the joint of the valve body 1 and the valve seat 2;
the sleeve 5 is installed in the cavity of the valve body 1, and the sleeve 5 is installed on the valve seat 2;
the valve core 6 is detachably connected with the valve seat 2, and the valve core 6 is in sliding connection with the sleeve 5;
the valve rod 7 is connected with the valve core 6;
the valve cover 8, a second winding gasket 9 is arranged at the joint of the valve body 1 and the valve cover 8, and the valve cover 8 is arranged at the top of the valve body 1; the valve body 1 is connected with the valve cover 8 through a first connecting piece 10 (generally adopting a bolt); the valve rod 7 penetrates through the valve cover 8, a packing ring 11 is installed between the valve rod 7 and the valve cover 8, a packing gland 12 is installed above the packing ring 11, a packing pressing plate 13 is installed above the packing gland 12, and the packing pressing plate 13 is connected with the valve cover 8 through a second connecting piece 14 (generally adopting a bolt); a gasket 15 is arranged below the packing ring 11;
a groove is formed in one end, close to the valve core 6, of the valve seat 2, the throttling sleeve 16 is fixed in the groove, and the throttling sleeve 16 is installed above the erosion-resistant orifice plate 3; the throttling sleeve 16 is provided with a plurality of through holes, and the throttling sleeve 16 is made of tungsten carbide;
and the top end of the valve rod 7 is connected with the hand wheel mechanism 17.
The valve rod 7 moves upwards under the driving of the hand wheel mechanism 17, the valve rod 7 can drive the valve core 6 to move upwards, and after the valve core 6 moves upwards, the valve core 6 and the sleeve 5 can form a channel, so that a medium flow channel is formed.
As can be seen from fig. 2, the media movement process of the erosion-resistant gate valve: the medium flows into the inner cavity of the valve seat 2 after being throttled and decelerated by the erosion-resistant pore plate 3 below the valve seat 2, and the medium releases the pressure of the medium at the moment, so that the pressure reduction effect is achieved. The medium flows into the throttling sleeve 16 again, and the medium pressure is released through the cavity hole of the throttling sleeve 16 by throttling and decelerating again. The medium flows into the upper cavity of the valve seat 2, flows into the anti-scouring groove of the sleeve 5 through the sealing surfaces of the valve core 6 and the valve seat 2 for speed reduction, and finally flows out after entering the sleeve 5.
As can be seen from fig. 2, when the opening is small, the outer wall of the valve element 6 and the sleeve 5 are in a sealed state, so that the sealing surface between the valve element 6 and the valve seat 2 is prevented from being corroded by cavitation under the condition of the small opening. The anti-scouring groove is positioned on the sleeve 5, and the anti-scouring groove is an area where the medium flows out of the sleeve 5 in fig. 2. To sum up, the utility model discloses a resistant gate valve that erodees is provided with anti erosion orifice plate 3 on disk seat 2, installs throttle cover 16 in the disk seat 2, through throttle cover 16 and 3 combined action of anti erosion orifice plate, even under the high pressure difference condition, the flow prevents directly to erode through case 6 again behind anti erosion orifice plate 3 and the throttle cover 16, and life improves greatly, has reduced use cost. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A erosion resistant gate valve, comprising:
a valve body (1);
the valve seat (2) is installed in a cavity of the valve body (1), and an anti-erosion orifice plate (3) is arranged on the valve seat (2);
a sleeve (5), the sleeve (5) being mounted in a cavity of the valve body (1), the sleeve (5) being mounted on the valve seat (2);
the valve core (6), the valve core (6) is detachably connected with the valve seat (2), and the valve core (6) is connected with the sleeve (5) in a sliding manner;
the valve rod (7), the said valve rod (7) is connected with said valve core (6);
the throttling sleeve (16) is installed in the cavity of the valve seat (2), and a plurality of through holes are formed in the throttling sleeve (16).
2. A wash-resistant gate valve according to claim 1, characterized in that: a groove is formed in one end, close to the valve core (6), of the valve seat (2), the throttling sleeve (16) is fixed in the groove, and the throttling sleeve (16) is installed above the erosion-resistant pore plate (3).
3. A wash-resistant gate valve according to claim 1 or 2, characterized in that: the throttle sleeve (16) is made of tungsten carbide.
4. A wash-resistant gate valve according to claim 1, characterized in that: valve body (1) with first winding gasket (4) are installed to the junction of disk seat (2), second winding gasket (9) are installed to the junction of valve body (1) and valve gap (8), install valve gap (8) the top of valve body (1).
5. A wash-resistant gate valve according to claim 4, characterized in that: the valve body (1) is connected with the valve cover (8) through a first connecting piece (10).
6. A wash-resistant gate valve according to claim 4 or 5, characterized in that: the valve rod (7) runs through the valve cover (8), the packing ring (11) is installed between the valve rod (7) and the valve cover (8), the packing gland (12) is installed above the packing ring (11), the packing pressing plate (13) is installed above the packing gland (12), and the packing pressing plate (13) is connected with the valve cover (8) through the second connecting piece (14).
7. A wash-resistant gate valve according to claim 6, characterized in that: and a gasket (15) is arranged below the packing ring (11).
8. A wash-resistant gate valve according to claim 1, characterized in that: the top end of the valve rod (7) is connected with a hand wheel mechanism (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120385601.4U CN214466117U (en) | 2021-02-20 | 2021-02-20 | Scouring-resistant gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120385601.4U CN214466117U (en) | 2021-02-20 | 2021-02-20 | Scouring-resistant gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214466117U true CN214466117U (en) | 2021-10-22 |
Family
ID=78144447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120385601.4U Active CN214466117U (en) | 2021-02-20 | 2021-02-20 | Scouring-resistant gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214466117U (en) |
-
2021
- 2021-02-20 CN CN202120385601.4U patent/CN214466117U/en active Active
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