CN204961867U - Power station is with novel high temperature high pressure sluice valve - Google Patents
Power station is with novel high temperature high pressure sluice valve Download PDFInfo
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- CN204961867U CN204961867U CN201520057165.2U CN201520057165U CN204961867U CN 204961867 U CN204961867 U CN 204961867U CN 201520057165 U CN201520057165 U CN 201520057165U CN 204961867 U CN204961867 U CN 204961867U
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Abstract
The utility model relates to a power station is with novel high temperature high pressure sluice valve, including valve body, flashboard, valve rod, transmission, the valve body is equipped with and flows in chamber and exhaust chamber, flows in and is equipped with the flashboard between chamber and the exhaust chamber, and the flashboard is wedge type structure, its characterized in that: the flashboard be close to to flow in chamber and exhaust chamber end, locate all to be equipped with the sealing washer with valve body contact, the valve body still is equipped with the valve rod hole, and valve rod one end is connected constitution circumferential location with the flat notch on the flashboard and is connected, and the other end is worn out the valve rod hole and is connected with transmission, the valve rod is close to valve rod hole department and is equipped with self -energized seal device, this self -energized seal device along the central line and valve body swing joint of valve rod, through above technical scheme, the utility model discloses a seal adoption pressure self -energized seal, pressure is high more, and sealing performance is good more, and simultaneously, this valve flashboard adopts wedge type elasticity single gate disc structure, moves the benefit and tastes owing to the valve body of loading unusually or the temperature arouses warp, can not produce the dead phenomenon of flashboard wedge.
Description
Technical field:
The utility model relates to valve technology field, is specifically related to a kind of power station Novel high-temperature high-pressure gate valve.
Background technique:
Gate valve is mainly applicable on the pipeline of the various system of firepower power station, cuts off or connects pipeline medium.
A kind of high-temperature and high-pressure wearable gate valve disclosed in existing patent 201320612718.7, comprise valve body, valve seat, flashboard, valve rod, valve gap, valve body adopts forged steel pieces, flashboard adopts wedge shape flashboard, flashboard two side plane spraying abrasion-proof alloy material, mainly valve seat adopts antifriction metal (AFM) circle composition, one end end face of antifriction metal (AFM) circle is shaped with the sealing surface cooperatively interacted with ram seal face, the other end is shaped with outside thread, the valve pocket side importing and exporting passage at valve body is shaped with inner bolt hole, the center line of this inner bolt hole is mutually vertical with the plane at place, ram seal face, antifriction metal (AFM) circle is arranged in the inner bolt hole of valve body by its outside thread, seal ring is provided with between the bottom surface of valve body inner bolt hole and the end face of valve seat outside thread side.This kind of gate valve innovative point is mainly that valve seat is replaceable, although this model utility is when after valve base sealing surface wear, can pull down replacing from valve body, guarantee the sealability between valve seat and flashboard, it is not suitable for power station valve gate valve.
Because the feature of power station valve compared with other valve products is High Temperature High Pressure, need product to have unique selfsealings design, pressure is higher, seals more reliable.Due to power station valve performance technologies characteristic, operating mode special make product also form other products the feature that do not substitute.
Model utility content:
The utility model is for the problem in background technique, proposes a kind of power station Novel high-temperature high-pressure gate valve, the selfsealings of its uniqueness design, and pressure is higher, seal more reliable, be suitable for high temperature and high pressure condition.
The utility model is for solving above technical problem, adopt following technological scheme: a kind of power station Novel high-temperature high-pressure gate valve, comprise valve body, flashboard, valve rod, transmission device, valve body is provided with inflow chamber and exhaust chamber, be provided with flashboard between inflow chamber and exhaust chamber, flashboard is key-like structure, is provided with support between transmission device and valve body, it is characterized in that: described flashboard is near inflow chamber and exhaust chamber end, and place is equipped with seal ring with valve body contact; Valve body is also provided with valve rod hole, and the flat notch on valve rod one end and flashboard connects and composes circumference and is located by connecting, and the other end passes valve rod hole and is connected with transmission device; Valve rod is provided with self-energized seal device near valve rod hole place, and this self-energized seal device is flexibly connected along the center line of valve rod with valve body.
By above technological scheme, sealing of the present utility model adopts pressure self-tightening sealing, pressure is higher, sealability is better, meanwhile, this valve flashboard adopts wedge-type elasticity Single disc structure, and dynamic benefit tastes the valve body deformation because abnormal load or temperature cause, sealing is reliable, can not produce the dead phenomenon of flashboard wedge.
The centerline of described exhaust chamber and described inflow chamber in same straight line, with the central axis of valve rod.
By above technological scheme, valve passage of the present utility model is through-type, and medium is in line flowing, and flow resistance, medium energy loss is very little.
Described self-energized seal device comprises floating gland, selfsealings circle, packing ring, pendant collet, gland, float and be provided with filler between gland and valve rod, and compress with Gland, the gland that floats is provided with selfsealings circle, packing ring, pendant collet successively near valve rod hole place, and compress with gland, selfsealings circle is mixed by steel wire and Expanded graphite and forms.
By above technological scheme, pressure self-tightening sealing device structure of the present utility model is simple, simultaneously because selfsealings circle is made up of steel wire and Expanded graphite mixing, makes the utility model be applicable to high-temperature high-pressure medium environment.
Described valve rod is shaped with trapezoidal thread near the top of valve rod hole.
By above technological scheme, the utility model adopts rising stem (RS.) rise-fall type, and valve rod, from the first half of handwheel upper trapezoid screw thread at valve rod, not with physical contact between media, directly can not found out from screw thread by the rotten valve opening height of medium, convenient operation.
Accompanying drawing illustrates:
Fig. 1 is the utility model structural representation;
In Fig. 1,1-valve body, 2-flashboard, 3-valve rod, 4-transmission device, 5-float gland, 6-selfsealings circle, 7-packing ring, 8-pendant collet, 9-gland, 10-filler, 11-Gland, 12-support.
Embodiment:
As shown in Figure 1, in specific embodiment of the present utility model, the utility model provides a kind of power station Novel high-temperature high-pressure gate valve, comprise valve body (1), flashboard (2), valve rod (3), transmission device (4), valve body (1) is provided with inflow chamber and exhaust chamber, flashboard (2) is provided with between inflow chamber and exhaust chamber, flashboard (2) is key-like structure, support (12) is provided with between transmission device (4) and valve body (1), it is characterized in that: described flashboard (2) is near inflow chamber and exhaust chamber end, seal ring is equipped with valve body (1) contacting point, valve body (1) is also provided with valve rod hole, and the flat notch on valve rod (3) one end and flashboard (2) connects and composes circumference and is located by connecting, and the other end passes valve rod hole and is connected with transmission device (4), valve rod (3) is provided with self-energized seal device near valve rod hole place, and this self-energized seal device is flexibly connected along the center line of valve rod (3) with valve body (1), sealing of the present utility model adopts pressure self-tightening sealing, pressure is higher, sealability is better, simultaneously, the flashboard (2) of this valve adopts wedge-type elasticity Single disc structure, dynamic benefit tastes valve body (1) distortion because abnormal load or temperature cause, and sealing is reliable, can not produce the dead phenomenon of flashboard wedge.
The centerline of described exhaust chamber and described inflow chamber in same straight line, with the central axis of valve rod (3); Because valve passage of the present utility model is through-type, medium is in line flowing, and flow resistance, medium energy loss is very little.
Described self-energized seal device comprises floating gland (5), selfsealings circle (6), packing ring (7), pendant collet (8), gland (9), float and be provided with filler (10) between gland (5) and valve rod (3), and compress with Gland (11), the gland (5) that floats is provided with selfsealings circle (6), packing ring (7), pendant collet (8) successively near valve rod hole place, and compress with gland (9), selfsealings circle (6) is mixed by steel wire and Expanded graphite and forms; Pressure self-tightening sealing device structure of the present utility model is simple, simultaneously because selfsealings circle (6) is made up of steel wire and Expanded graphite mixing, makes the utility model be applicable to high-temperature high-pressure medium environment.
Described valve rod (3) is shaped with trapezoidal thread near the top of valve rod hole, the utility model adopts rising stem (RS.) rise-fall type, valve rod (3) is from the first half of handwheel upper trapezoid screw thread at valve rod, not with physical contact between media, directly can not find out from screw thread by the rotten valve opening height of medium, convenient operation.
Claims (4)
1. a power station Novel high-temperature high-pressure gate valve, comprise valve body (1), flashboard (2), valve rod (3), transmission device (4), valve body (1) is provided with inflow chamber and exhaust chamber, flashboard (2) is provided with between inflow chamber and exhaust chamber, flashboard (2) is key-like structure, support (12) is provided with between transmission device (4) and valve body (1), it is characterized in that: described flashboard (2), near inflow chamber and exhaust chamber end, is equipped with seal ring with valve body (1) contacting point; Valve body (1) is also provided with valve rod hole, and the flat notch on valve rod (3) one end and flashboard (2) connects and composes circumference and is located by connecting, and the other end passes valve rod hole and is connected with transmission device (4); Valve rod (3) is provided with self-energized seal device near valve rod hole place, and this self-energized seal device is flexibly connected along the center line of valve rod (3) with valve body (1).
2. a kind of power station according to claim 1 Novel high-temperature high-pressure gate valve, is characterized in that: the centerline of described exhaust chamber and described inflow chamber in same straight line, with the central axis of valve rod (3).
3. a kind of power station according to claim 1 Novel high-temperature high-pressure gate valve, it is characterized in that: described self-energized seal device comprises floating gland (5), selfsealings circle (6), packing ring (7), pendant collet (8), gland (9), float and be provided with filler (10) between gland (5) and valve rod (3), and compress with Gland (11), the gland (5) that floats is provided with selfsealings circle (6) successively near valve rod hole place, packing ring (7), pendant collet (8), and compress with gland (9), selfsealings circle (6) is mixed by steel wire and Expanded graphite and forms.
4. a kind of power station according to claim 1 Novel high-temperature high-pressure gate valve, is characterized in that: described valve rod (3) is shaped with trapezoidal thread near the top of valve rod hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057165.2U CN204961867U (en) | 2015-01-24 | 2015-01-24 | Power station is with novel high temperature high pressure sluice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057165.2U CN204961867U (en) | 2015-01-24 | 2015-01-24 | Power station is with novel high temperature high pressure sluice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961867U true CN204961867U (en) | 2016-01-13 |
Family
ID=55056936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520057165.2U Expired - Fee Related CN204961867U (en) | 2015-01-24 | 2015-01-24 | Power station is with novel high temperature high pressure sluice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826970A (en) * | 2019-03-26 | 2019-05-31 | 良工阀门集团有限公司 | A kind of dark rod flat plate valve of no flange and bolted bonnet (BB) structure |
| CN113669472A (en) * | 2021-08-04 | 2021-11-19 | 凯瑞特阀业有限公司 | Integral forged high-sealing gate valve |
-
2015
- 2015-01-24 CN CN201520057165.2U patent/CN204961867U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826970A (en) * | 2019-03-26 | 2019-05-31 | 良工阀门集团有限公司 | A kind of dark rod flat plate valve of no flange and bolted bonnet (BB) structure |
| CN109826970B (en) * | 2019-03-26 | 2023-11-10 | 良工阀门集团有限公司 | Hidden rod flat valve without flange and bolt connection valve cover structure |
| CN113669472A (en) * | 2021-08-04 | 2021-11-19 | 凯瑞特阀业有限公司 | Integral forged high-sealing gate valve |
| CN113669472B (en) * | 2021-08-04 | 2024-04-23 | 凯瑞特阀业集团有限公司 | Integral forging high sealing gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20170124 |