CN2646501Y - Dusts or particles gas dump valve - Google Patents
Dusts or particles gas dump valve Download PDFInfo
- Publication number
- CN2646501Y CN2646501Y CN 03284361 CN03284361U CN2646501Y CN 2646501 Y CN2646501 Y CN 2646501Y CN 03284361 CN03284361 CN 03284361 CN 03284361 U CN03284361 U CN 03284361U CN 2646501 Y CN2646501 Y CN 2646501Y
- Authority
- CN
- China
- Prior art keywords
- valve
- tapered plug
- valve rod
- opening
- cut
- Prior art date
- 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.)
- Expired - Lifetime
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- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a dust, kernel gas trip valve, the valve is internally provided with a valve core, the valve core is connected with an opening and closing mechanism, the valve core is a tapered plug, the opening and closing mechanism consists of a rotation nut provided in a bracket, an overrunning coupler and a valve handle, the valve handle passed through the rotation nut, the overrunning coupler and a valve cover from upper to bottom, the upper section of the valve handle is provided with an outside thread connected with a thread of the rotation nut, the middle part of the valve handle is provided with a key slot for matching with the overrunning coupler by sliding, the lower side of the valve handle fixedly connects with the tapered plug, the lower end of the tapered plug is provided with a guide shaft for matching with a shaft cover provided on a valve body. The seal surface of the utility model is always protected under the opening and the closing conditions, thereby preventing the dust, the kernels and hazardous substances from corroding and eroding the seal surface, extending the service life of the valve. The utility model adopts the tapered plug seal structure and has a safe and reliable seal.
Description
Technical field
The utility model belongs to a kind of valve, particularly relates to a kind of valve that plays cutting action on the pipeline of carrying coal gas that is applied in.
Background technique
It is more to contain dust, particle and harmful matter in blast furnace gas, coke-stove gas and the raw coke oven gas, and for the valve on the gas pipe line, the user is more and more higher to the requirement of its Security and sealing reliability.The valve that uses on the gas pipe line mainly contains butterfly valve, gate valve and push-pull valve etc. at present, and these valves in use respectively have its pluses and minuses.Butterfly valve structure is simple, and is easy and simple to handle, rapid, favorable sealing property, and shortcoming is that the pressure loss is bigger.Although the gate valve pressure loss is little, and is simple in structure, its boundary dimension is bigger, and required installing space is also bigger, and in playing closed procedure, relative friction is arranged between sealing surface, and it is bigger to wear and tear, and influences the working life of valve.The advantage of push-pull valve is to open and close the back sealing reliably, and shortcoming is that gas has leakage in the opening-closing process.
Summary of the invention
The purpose of this utility model provides dust, the granular gas cut-off valve of the reliable and long service life of a kind of sealingly secure.
For achieving the above object, the utility model adopts following technological scheme: a kind of dust, the granular gas cut-off valve, spool is housed in valve body, spool is connected with its opening/closing mechanism, described spool is a tapered plug, opening/closing mechanism is by the swivel nut that is contained in the support, free wheel device and valve rod are formed, valve rod passes swivel nut from top to bottom, free wheel device and valve gap, the epimere of valve rod is provided with outside thread and is threaded with swivel nut, the middle part of valve rod is provided with keyway and free wheel device is slidingly matched, fixedly connected with tapered plug in the lower end of valve rod, the axle sleeve on the lower end of tapered plug is provided with the axis of guide and is contained in valve body matches.
The valve rod lower end is connected with contiguous block by bearing pin, and contiguous block is connected with land on the tapered plug.
The connection part of valve rod and valve gap is equipped with stuffing box packing and is compressed by Gland.
The ash discharge funnel of establishing drain opening is housed on the valve body.
On valve gap, be provided with water filling hole and pressure tap.
The utility model on-off structure in the switching process upwards promotes valve rod earlier, drives the tapered plug rotation again and realizes opening or closing, and having guaranteed does not have friction in the sealing pair switching process, and running torque is little, and sealing pair does not have wearing and tearing.The utility model is protected all the time in opening and closing state lower sealing surface, has avoided corrosion and the erosion to sealing surface of dust, particle and harmful matter, has prolonged valve working life.The utility model adopts the tapered plug sealing configuration, and sealingly secure is reliable.In addition, adopt the tapered plug sealing configuration can guarantee that the valve mechanism size is little, be convenient to install.
Description of drawings
Accompanying drawing is depicted as structural representation of the present utility model.
Embodiment
In the valve body 10 of this dust, granular gas cut-off valve tapered plug 11 is housed, tapered plug 11 is connected with its opening/closing mechanism, and opening/closing mechanism is made up of the swivel nut 23, free wheel device 21 and the valve rod 1 that are contained in the support.Support comprises upper bracket 2 and is connected support 20, and swivel nut 23 and free wheel device 21 all are contained in the upper bracket 2, upper bracket 2 be connected support 20 and connect, connect support 20 and be connected with valve gap 7.Valve rod 1 passes swivel nut 23, free wheel device 21 and valve gap 7 from top to bottom, and its lower end is connected with contiguous block 8 by bearing pin 9, and contiguous block 8 is connected with land 17 on being contained in tapered plug 11.The epimere of valve rod 1 is provided with outside thread and is threaded with swivel nut 23, and the outside thread below of valve rod epimere also is provided with a thrust button 3, and when thrust button 3 rose to the lower end surface of swivel nut 23, valve rod 1 stopped to move upward.The middle part of valve rod 1 is provided with keyway 22 and is slidingly matched with free wheel device 21, is contained in Upper shaft sleeve 18 between valve rod 1 and the valve gap 7.The connection part of valve rod 1 and valve gap 7 is filled with stuffing box packing 5 and is compressed by Gland 4.Tapered plug 11 bottoms are provided with the axis of guide 12, and valve body 10 bottoms are provided with Lower shaft sleeve 16, and the axis of guide 12 is contained in the Lower shaft sleeve and can slides up and down in Lower shaft sleeve 16.On valve gap 7, be provided with water filling hole 19, can water filling in valve pocket by this water filling hole, the water of injection can form water seal at the sealing surface place, prevent that coal gas from leaking from sealing surface, improves sealing effect.On valve gap 7, also be provided with pressure tap 6,, can measure in real time, when hydraulic pressure is not enough, by control system water filling in valve pocket in time, so that the pressure of water is all the time greater than the gas pressure at sealing surface place to the hydraulic pressure in the valve pocket in that this valve is actual when using.
In valve body 10 bottoms ash discharge funnel 13 is housed, ash discharge funnel 13 bottoms are provided with ash discharge drain opening 15.When the utility model size was big, its underpart was with mounting bracket 14 supportings, when size hour, can not establish mounting bracket.
Its working principle is: at first, with the supporting valve actuator rotation of the utility model, the driven rotary nut rotates, valve rod is promoted together with tapered plug, after lifting puts in place, swivel nut and valve rod tighten together, and drive the tapered plug half-twist again, after being rotated in place, valve actuator stops operating, valve actuator revolution then, this moment, free wheel device was in jointing state, prevented the valve rod revolution, guarantee that swivel nut and valve rod are separated from, valve rod moves downward afterwards, and tapered plug is compressed, and realizes the unlatching of valve or closes.
Claims (6)
1, a kind of dust, the granular gas cut-off valve, spool is housed in valve body, spool is connected with its opening/closing mechanism, it is characterized in that, described spool is a tapered plug, opening/closing mechanism is by the swivel nut that is contained in the support, free wheel device and valve rod are formed, valve rod passes swivel nut from top to bottom, free wheel device and valve gap, the epimere of valve rod is provided with outside thread and is threaded with swivel nut, the middle part of valve rod is provided with keyway and free wheel device is slidingly matched, fixedly connected with tapered plug in the lower end of valve rod, the axle sleeve on the lower end of tapered plug is provided with the axis of guide and is contained in valve body matches.
2, cut-off valve as claimed in claim 1 is characterized in that, the valve rod lower end is connected with contiguous block by bearing pin, and contiguous block is connected with land on the tapered plug.
3, cut-off valve as claimed in claim 1 or 2 is characterized in that, the connection part of valve rod and valve gap is equipped with stuffing box packing and is compressed by Gland.
4, cut-off valve as claimed in claim 1 or 2 is characterized in that, the ash discharge funnel of establishing drain opening is housed on the valve body.
5, cut-off valve as claimed in claim 1 or 2 is characterized in that, is provided with water filling hole on valve gap.
6, cut-off valve as claimed in claim 5 is characterized in that, also is provided with pressure tap on the valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03284361 CN2646501Y (en) | 2003-09-25 | 2003-09-25 | Dusts or particles gas dump valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03284361 CN2646501Y (en) | 2003-09-25 | 2003-09-25 | Dusts or particles gas dump valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646501Y true CN2646501Y (en) | 2004-10-06 |
Family
ID=34303792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03284361 Expired - Lifetime CN2646501Y (en) | 2003-09-25 | 2003-09-25 | Dusts or particles gas dump valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646501Y (en) |
-
2003
- 2003-09-25 CN CN 03284361 patent/CN2646501Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130925 Granted publication date: 20041006 |