CN212616400U - High-pressure groove gate valve - Google Patents
High-pressure groove gate valve Download PDFInfo
- Publication number
- CN212616400U CN212616400U CN202020759135.7U CN202020759135U CN212616400U CN 212616400 U CN212616400 U CN 212616400U CN 202020759135 U CN202020759135 U CN 202020759135U CN 212616400 U CN212616400 U CN 212616400U
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- Prior art keywords
- valve
- gate
- valve body
- gate valve
- rod
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of gate valves, in particular to a high-pressure groove gate valve, which comprises a gate valve body, wherein the gate valve body comprises a valve body and a valve seat arranged on the valve body, a gate plate is arranged in the valve body, the top of the gate plate is connected with a gate rod, an upper cover is sleeved on the gate rod and is connected with a support; a packing is arranged between the upper cover and the brake rod, and a packing gland is arranged on the packing; the upper end part of the brake rod is provided with a bearing and a valve rod nut, and the top part of the brake rod is provided with a hand wheel; the valve seat of the utility model adopts a floating valve seat structure that an O-shaped sealing ring applies pretightening force, so that the valve realizes the bidirectional sealing of the inlet and the outlet; all be equipped with the carbide coating on disk seat and the flashboard, increased corrosion-resistant and wear resistance, improved the life of valve. In addition, the high-pressure groove gate valve is simple in structure, simple to operate, convenient to use and suitable for being used as an opening and closing device in pipelines such as long oil (gas) transmission pipelines, oil refineries, oil field pipelines, natural gas exploitation and oil exploitation.
Description
Technical Field
The utility model relates to a gate valve technical field especially relates to a high-pressure slot gate valve.
Background
The valves used for the fluid control system are various from the simplest stop valve to various valves used in a very complicated automatic control system, the variety and the specification of the valves are quite various, the valves can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, the valves are further divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316 and the like), chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard custom-made valve materials and the like according to the materials, in the installation process of the gate valve, the traditional gate valve connection modes are various, such as flanges, internal and external threads, socket welding, hoops and the like, but the traditional valve has poor sealing performance, the traditional single sealing gasket can not meet the use requirement, the use is very inconvenient, and the installation, the disassembly and maintenance cost of the traditional valve is high, the operation is more complicated and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the high pressure slot gate valve that proposes, the leakproofness is good, and corrosion-resistant and wear resistance are good, long service life, easy operation, convenient to use.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-pressure trench gate valve comprises a gate valve body, wherein the gate valve body comprises a valve body and a valve seat arranged on the valve body, a gate plate is arranged in the valve body, the top of the gate plate is connected with a gate rod, an upper cover is sleeved on the gate rod, and a support is connected to the upper cover; a packing is arranged between the upper cover and the brake rod, and a packing gland is arranged on the packing; the upper end of brake lever is equipped with bearing and valve-stem nut, the top of brake lever is equipped with the hand wheel.
Preferably, a first sealing ring and a second sealing ring are arranged between the valve seat and the valve body.
Preferably, the valve seat and the gate plate are both provided with hard alloy coatings.
Preferably, the gate is a gate with a diversion hole.
Preferably, the gate valve body is a single-groove gate valve, a double-groove gate valve or a triple-groove gate valve.
The utility model discloses following beneficial effect has: the utility model relates to a high-pressure groove gate valve, which comprises a gate valve body, wherein the gate valve body comprises a valve body and a valve seat arranged on the valve body, a flashboard is arranged in the valve body, the top of the flashboard is connected with a gate rod, an upper cover is sleeved on the gate rod, and the upper cover is connected with a bracket; a packing is arranged between the upper cover and the brake rod, and a packing gland is arranged on the packing; the upper end part of the brake rod is provided with a bearing and a valve rod nut, and the top part of the brake rod is provided with a hand wheel; the valve seat of the utility model adopts a floating valve seat structure that an O-shaped sealing ring applies pretightening force, so that the valve realizes the bidirectional sealing of the inlet and the outlet; all be equipped with the carbide coating on disk seat and the flashboard, increased corrosion-resistant and wear resistance, improved the life of valve. In addition, the high-pressure groove gate valve is simple in structure, simple to operate, convenient to use and suitable for being used as an opening and closing device in pipelines such as long oil (gas) transmission pipelines, oil refineries, oil field pipelines, natural gas exploitation and oil exploitation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
In the figure: 1-valve body, 2-valve seat, 3-gate plate, 4-gate rod, 5-upper cover, 6-support, 7-filler, 8-filler gland, 9-bearing, 10-valve rod nut, 11-hand wheel, 12-first sealing ring and 13-second sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, the high-pressure trench gate valve comprises a gate valve body, wherein the gate valve body comprises a valve body 1 and a valve seat 2 mounted on the valve body 1, a gate plate 3 is arranged in the valve body 1, the top of the gate plate 3 is connected with a gate rod 4, an upper cover 5 is sleeved on the gate rod 4, and a support 6 is connected on the upper cover 5; a packing 7 is arranged between the upper cover 5 and the brake rod 4, and a packing gland 8 is arranged on the packing 7; the upper end of brake lever 4 is equipped with bearing 9 and valve-stem nut 10, the top of brake lever 4 is equipped with hand wheel 11.
Specifically, a first sealing ring 12 and a second sealing ring 13 are arranged between the valve seat 2 and the valve body 1.
In this embodiment, the first seal ring 12 and the second seal ring 13 are both O-shaped seal rings, and here, the valve seat adopts a floating valve seat structure in which the O-shaped seal rings seal and a pre-tightening force is applied, so that the valve realizes bidirectional sealing of the inlet and the outlet; and the opening and closing torque of the structure is only 1/3-1/2 of that of a common valve, so that the valve can be loosened and closed easily.
Specifically, hard alloy coatings are arranged on the valve seat 2 and the flashboard 3.
In the embodiment, the surfaces of the valve seat 2 and the gate plate 3 are sprayed with the hard alloy coating by a spraying process during actual processing, so that the corrosion resistance and the wear resistance of the valve are effectively improved, and the service life of the valve is prolonged.
Specifically, the gate plate 3 is a gate plate with a diversion hole.
In the embodiment, the flashboard with the flow guide hole is adopted and is always matched with the sealing surface of the valve seat no matter the flashboard is fully opened or closed, so that the sealing pair is protected from being directly washed by a medium, and the service life is prolonged.
Specifically, the gate valve body is a single-groove gate valve, a double-groove gate valve or a triple-groove gate valve.
The utility model discloses in, single slot gate valve, double flute gate valve or three slot gate valves that here said are the connected mode of valve tip, can select according to the condition and decide during the actual application to satisfy the user demand.
Meanwhile, when the valve is fully opened, the channel is smooth and straight, no flow resistance and no pressure loss exist, and the hair bulb can be used for cleaning and sweeping the pipeline; the valve adopts a packing compression structure, so that the valve is easy to open and close and has good sealing performance; the full-closed structure is adopted, the protective performance is good, and the all-weather requirements can be met; a manually operated valve is adopted, a hand wheel rotates the valve door clockwise to close, and rotates the valve door anticlockwise to open. And after the valve is closed in place, the valve needs to rotate 1/4-1/2 circles anticlockwise, so that the valve plate is convenient to leave the bottom of the valve body and can flexibly move in the direction vertical to the pipeline, and good sealing between the valve plate and a valve seat is realized.
The pressure range of the valve is: PN 1.6-PN 70 MPa, and the temperature range is as follows: -29 to 121 ℃, and the caliber ranges are as follows: DN 25-DN 200, the connection mode of the end parts can be as follows: single trench, double trench, triple trench.
In conclusion, the high-pressure groove gate valve is simple in structure, simple to operate, convenient to use and suitable for being used as an opening and closing device in pipelines such as long oil (gas) transmission pipelines, oil refineries, oil field pipelines, natural gas exploitation and oil exploitation.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A high-pressure trench gate valve comprises a gate valve body and is characterized in that the gate valve body comprises a valve body (1) and a valve seat (2) arranged on the valve body (1), a gate plate (3) is arranged in the valve body (1), the top of the gate plate (3) is connected with a gate rod (4), an upper cover (5) is sleeved on the gate rod (4), and a support (6) is connected on the upper cover (5); a packing (7) is arranged between the upper cover (5) and the brake lever (4), and a packing gland (8) is arranged on the packing (7); the upper end of brake lever (4) is equipped with bearing (9) and valve-stem nut (10), the top of brake lever (4) is equipped with hand wheel (11).
2. A high-pressure trench gate valve according to claim 1, characterized in that a first sealing ring (12) and a second sealing ring (13) are provided between the valve seat (2) and the valve body (1).
3. A high-pressure trench gate valve according to claim 1, characterized in that both the valve seat (2) and the gate plate (3) are provided with a hard metal coating.
4. A high-pressure trench gate valve according to claim 1, characterized in that the gate plate (3) is a gate plate with a pilot hole.
5. The high pressure trench gate valve of claim 1, wherein the gate valve body is a single trench gate valve, a double trench gate valve, or a triple trench gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759135.7U CN212616400U (en) | 2020-05-09 | 2020-05-09 | High-pressure groove gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759135.7U CN212616400U (en) | 2020-05-09 | 2020-05-09 | High-pressure groove gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212616400U true CN212616400U (en) | 2021-02-26 |
Family
ID=74725563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020759135.7U Expired - Fee Related CN212616400U (en) | 2020-05-09 | 2020-05-09 | High-pressure groove gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212616400U (en) |
-
2020
- 2020-05-09 CN CN202020759135.7U patent/CN212616400U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |