CN213871180U - Sliding plate valve structure - Google Patents
Sliding plate valve structure Download PDFInfo
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- CN213871180U CN213871180U CN202022616427.8U CN202022616427U CN213871180U CN 213871180 U CN213871180 U CN 213871180U CN 202022616427 U CN202022616427 U CN 202022616427U CN 213871180 U CN213871180 U CN 213871180U
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Abstract
The utility model discloses a slide plate valve structure, include: the valve body is provided with a flow passage in a penetrating way; the static valve plate is fixed at the runner port of the valve body, and a static throttling slot hole penetrates through the static valve plate; the movable valve plate is positioned in the valve body and attached to the surface of the static valve plate, the movable valve plate is fixed on the plate seat, a movable throttling groove hole and a positioning hole penetrate through the movable valve plate, a groove is formed in the surface of the movable valve plate attached to the static valve plate, and the groove is communicated with the positioning hole and is not communicated with the movable throttling groove hole and the static throttling groove hole all the time; and the valve rod is fixedly connected with the plate seat and driven by an actuating mechanism to drive the movable valve plate to slide along the static valve plate, so that the movable throttling groove hole and the static throttling groove hole are communicated in an aligned mode or are separated in a staggered mode. According to the structure of the sliding plate valve, the labyrinth grooves are processed on the plane which does not participate in sealing, so that the pressure balancing effect is achieved, the contact area of the movable valve plate and the static valve plate is reduced, the friction force is reduced, the requirement on driving force can be reduced, the stress of the valve rod is reduced, and the allowable pressure difference of the valve is increased.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a slide plate valve structure.
Background
In recent years, in the field of valve technology, there are many valves that use a plate-type structure as a valve element and use a plate-type structure valve seat to cooperate with the plate-type structure valve element to control the flow of gas or liquid, which are called as slide valves. However, in the conventional sliding plate valve, the fluid medium generates a large fluid pressure to the valve plate because the sealing performance needs to be ensured, but the friction force on the valve plate surface is large, so that when the fluid is throttled, a considerable external force needs to be applied to the valve plate to close the fluid passage. When the driving force of the actuating mechanism is small, the maximum allowable pressure difference of the valve is low, if the maximum allowable pressure difference of the valve needs to be increased, the driving force of the actuating mechanism needs to be increased, so that the stress strength of pressure-bearing parts such as a valve rod, a valve plate, a support and the like is increased, and the requirements on parts are improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a slide plate valve structure when guaranteeing valve seal nature, reduces valve plate face frictional force, increases the tolerance pressure difference of valve, reduces valve internals atress intensity.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a slide valve structure, comprising:
the valve body is provided with a flow passage in a penetrating way;
the static valve plate is fixed at the runner port of the valve body, and a static throttling slot hole penetrates through the static valve plate;
the movable valve plate is positioned in the valve body and attached to the surface of the static valve plate, the movable valve plate is fixed on the plate seat, a movable throttling groove hole and a positioning hole penetrate through the movable valve plate, a groove is formed in the surface of the movable valve plate attached to the static valve plate, and the groove is communicated with the positioning hole and is not communicated with the movable throttling groove hole and the static throttling groove hole all the time;
and the valve rod is fixedly connected with the plate seat and driven by an actuating mechanism to drive the movable valve plate to slide along the static valve plate, so that the movable throttling groove hole and the static throttling groove hole are communicated in an aligned mode or are separated in a staggered mode.
Particularly, a valve cover is fixed on the valve body through bolts and covers the surface of the static valve plate in a pressing mode, a through hole is formed in the valve cover corresponding to the static throttling slotted hole, and a sealing gasket is arranged between the valve cover and the static valve plate.
In particular, the groove is disposed about the rim of the movable valve plate.
In particular, the grooves are arranged in a labyrinth configuration.
Especially, the valve rod is worn to locate in the valve body, presss from both sides between valve rod and the valve body and is equipped with sealing filler, and compresses tightly sealing filler through the spring clamp plate subassembly.
To sum up, the beneficial effects of the utility model are that, compare with prior art, the slide valve structure is considered to have most contact surface and directly not participate in sealedly between movable valve plate and the quiet valve plate, through processing labyrinth recess in the plane department that does not participate in sealedly, both can guarantee that valve sealing performance is unchangeable, and can play the equilibrium pressure effect for movable valve plate reduces with the area of contact of quiet valve plate in the course of the work, and frictional force reduces, thereby can reduce the drive power requirement, reduces the valve rod atress, increases the allowable pressure difference of valve.
Drawings
Fig. 1 is a sectional view of a sliding plate valve structure provided in an embodiment of the present invention;
fig. 2 is a schematic view of the cooperation between a static valve plate and a movable valve plate in the sliding plate valve structure provided by the embodiment of the present invention;
fig. 3 is a schematic end view of a movable valve plate in a sliding plate valve structure provided by the embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 3, the present embodiment provides a sliding plate valve structure, which includes a valve body 1, a static valve plate 2, a movable valve plate 3 and a valve rod 4.
The valve body 1 is provided with a flow passage 5 in a penetrating manner, the static valve plate 2 is fixed at a flow passage opening of the valve body 1, the static valve plate 2 is provided with a static throttling groove hole 6 in a penetrating manner, the valve body 1 is fixed with a valve cover 7 through a bolt, the valve cover 7 is pressed on the surface of the static valve plate 2, the valve cover 7 is provided with a through hole corresponding to the static throttling groove hole 6, and a sealing gasket 8 is arranged between the valve cover 7 and the static valve plate 2.
The movable valve plate 3 is positioned in the valve body 1 and attached to the surface of the static valve plate 2, the movable valve plate 3 is fixed on the plate seat 9, a movable throttling groove hole 10 and a positioning hole 11 penetrate through the movable valve plate 3, a labyrinth groove 12 is arranged on the surface, attached to the static valve plate 2, of the movable valve plate 3, and the labyrinth groove 12 is communicated with the positioning hole 11 and is not communicated with the movable throttling groove hole 10 and the static throttling groove hole 6 all the time. In view of the arrangement of the actual dynamic throttle slots 10 and static throttle slots 6, it is preferable that the labyrinth grooves 12 are provided around the edge of the dynamic valve plate 3 so as not to interfere.
The valve rod 4 penetrates through the valve body 1, the sealing filler 13 is clamped between the valve rod 4 and the valve body 1, the sealing filler 13 is tightly pressed through the spring pressing plate assembly, the valve rod 4 is fixedly connected with the plate seat 9 and driven by the actuating mechanism, the movable valve plate 3 is driven to slide along the static valve plate 2, and the movable throttling slot hole 10 is aligned with and communicated with or staggered with the static throttling slot hole 6 to be cut off.
Because the stroke of the sliding plate valve is short, most contact surfaces between the movable valve plate 3 and the static valve plate 2 do not directly participate in sealing, the labyrinth grooves 12 are processed at the plane which does not participate in sealing, the labyrinth grooves 12 do not influence the surface-to-surface contact tightness, the sealing performance of the valve is guaranteed to be unchanged, the surface of the movable valve plate 3 is uniformly abraded in the working process, and leakage caused by local abrasion is avoided.
In addition, medium pressure enters the labyrinth groove 12 from the positioning hole 11 to play a role of pressure balancing, the contact area between the movable valve plate 3 and the static valve plate 2 is reduced, the friction force is reduced, through tests, the pressure on the movable valve plate 3 can be reduced by 25% -40%, the friction force is reduced by 25% -40%, and the total acting force on the valve rod 4 can be reduced by 20% -30%.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A sliding plate valve structure is characterized by comprising
The valve body is provided with a flow passage in a penetrating way;
the static valve plate is fixed at the runner port of the valve body, and a static throttling slot hole penetrates through the static valve plate;
the movable valve plate is positioned in the valve body and attached to the surface of the static valve plate, the movable valve plate is fixed on the plate seat, a movable throttling groove hole and a positioning hole penetrate through the movable valve plate, a groove is formed in the surface of the movable valve plate attached to the static valve plate, and the groove is communicated with the positioning hole and is not communicated with the movable throttling groove hole and the static throttling groove hole all the time;
and the valve rod is fixedly connected with the plate seat and driven by an actuating mechanism to drive the movable valve plate to slide along the static valve plate so as to enable the movable throttling groove hole and the static throttling groove hole to be communicated in an aligned mode or separated in a staggered mode.
2. The slide valve structure according to claim 1, wherein: the valve body is fixed with a valve cover through a bolt, the valve cover covers the surface of the static valve plate in a pressing mode, a through hole is formed in the valve cover corresponding to the static throttling slotted hole, and a sealing gasket is arranged between the valve cover and the static valve plate.
3. The slide valve structure according to claim 1, wherein: the groove is arranged around the edge of the movable valve plate.
4. A sliding plate valve structure according to claim 3, characterised in that: the groove is arranged to be of a labyrinth structure.
5. The slide valve structure according to claim 1, wherein: the valve rod penetrates through the valve body, a sealing filler is clamped between the valve rod and the valve body, and the sealing filler is tightly pressed through the spring pressing plate assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022616427.8U CN213871180U (en) | 2020-11-12 | 2020-11-12 | Sliding plate valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022616427.8U CN213871180U (en) | 2020-11-12 | 2020-11-12 | Sliding plate valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213871180U true CN213871180U (en) | 2021-08-03 |
Family
ID=77055496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022616427.8U Active CN213871180U (en) | 2020-11-12 | 2020-11-12 | Sliding plate valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213871180U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2780395C1 (en) * | 2021-11-22 | 2022-09-22 | Акционерное общество "Конструкторское бюро химического машиностроения имени А.М. Исаева" | Electromagnetic throttle valve |
| CN116592152A (en) * | 2023-07-18 | 2023-08-15 | 盛世精密科技(沧州)有限公司 | Slide valve |
| CN117516920A (en) * | 2024-01-08 | 2024-02-06 | 盛世精密科技(沧州)有限公司 | Running-in testing device and running-in testing method for slide valve |
-
2020
- 2020-11-12 CN CN202022616427.8U patent/CN213871180U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2780395C1 (en) * | 2021-11-22 | 2022-09-22 | Акционерное общество "Конструкторское бюро химического машиностроения имени А.М. Исаева" | Electromagnetic throttle valve |
| CN116592152A (en) * | 2023-07-18 | 2023-08-15 | 盛世精密科技(沧州)有限公司 | Slide valve |
| CN116592152B (en) * | 2023-07-18 | 2023-09-19 | 盛世精密科技(沧州)有限公司 | Slide valve |
| CN117516920A (en) * | 2024-01-08 | 2024-02-06 | 盛世精密科技(沧州)有限公司 | Running-in testing device and running-in testing method for slide valve |
| CN117516920B (en) * | 2024-01-08 | 2024-03-29 | 盛世精密科技(沧州)有限公司 | Running-in testing device and running-in testing method for slide valve |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210910 Address after: 214100 No. 85, Yanyu Road, Yanqiao street, Huishan District, Wuxi City, Jiangsu Province (Yanqiao) Patentee after: Wuxi Jiade fluid control valve Co.,Ltd. Address before: 214000 Room 101, building 17, Huaqing Creative Park, No. 33, Zhizhi Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: Jiangsu yiyouda Fluid Technology Co.,Ltd. |