CN204828919U - Nozzle coal gas flow control orifice plate - Google Patents
Nozzle coal gas flow control orifice plate Download PDFInfo
- Publication number
- CN204828919U CN204828919U CN201520391911.1U CN201520391911U CN204828919U CN 204828919 U CN204828919 U CN 204828919U CN 201520391911 U CN201520391911 U CN 201520391911U CN 204828919 U CN204828919 U CN 204828919U
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- valve
- rod
- valve body
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- valve rod
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- Expired - Fee Related
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Abstract
The utility model relates to a nozzle coal gas flow control orifice plate belongs to vertical annealing stove nozzle adjustment device technical field. Including valve gap, valve body and valve rod, the internal thread is offered on the cylinder hole upper portion at valve body middle part, and the external screw thread is offered on valve rod upper portion, the valve rod insert in the cylinder hole at valve body middle part with valve body threaded connection, the valve gap lid fits the top in valve body middle part cylinder hole, external screw thread and valve body middle part cylinder hole threaded connection are offered to the valve cover connection pole, interior hexagonal screw is offered at the valve rod top, valve rod body of rod circumference is opened has the recess that assembles valve stem gasket in it. The utility model discloses the rotation regulation to the valve rod is realized to hexagonal screw in valve rod top and valve gap top are offered, the allen key that can use big moment, can not lead to the fact unable problem of adjusting because of the corrosion of valve rod and valve body junction, has convenient, the swift characteristics of adjusting, the good sealed of coal gas can be realized to the O type sealing washer that assembles on valve rod and valve gap sub -unit connection pole, stops to take place gas leakage's potential safety hazard.
Description
Technical field
The utility model relates to a kind of burner gas flow regulating orifice plate, belongs to vertical annealing furnace burner regulating equipment technical field.
Background technique
In vertical annealing furnace, need often to adjust the gas flow flowing through burner, to obtain suitable air fuel ratio, thus ensure coal gas perfect combustion in burner.The adjustment of burner gas flow is mainly undertaken by regulating orifice plate, regulating orifice plate conventional at present comprises valve gap, valve body and valve rod, formation comprises valve gap, valve body and valve rod, internal thread is offered on cylindrical hole top in the middle part of valve body, outside thread is offered on valve rod top, valve rod inserts in the cylindrical hole in the middle part of valve body and is connected with valve body screw thread, valve gap is covered on the top of cylindrical hole in the middle part of valve body, bonnet lower connecting rod is offered outside thread and is threaded with cylindrical hole in the middle part of valve body, realizes the change of coal gas cross-sectional flow area thus reach the object adjusting gas flow by rotary valve rod.In use there is following defect in existing regulating orifice plate: first, when operator reconcile gas flow, the word groove utilizing a word screwdriver to be offered by valve stem top is needed to rotate, because a word groove of existing valve stem top is more shallow, during adjustment, screwdriver easily skids off, and causes and regulates inconvenience; Meanwhile, due to the long corrosive action of coal gas, the easy corrosion of valve rod and valve body screw thread joint, a word screwdriver cannot regulate because adjustment moment of torsion is little, and the rotation of valve rod regulates more difficult, needs to stop to change, and cause the accident parking; Secondly, owing to lacking seal arrangement, there is the security risk of gas leakage in existing regulating orifice plate.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of burner gas flow regulating orifice plate of easy to adjust, good sealing effect, solves the defect of background technique.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is as follows:
A kind of burner gas flow regulating orifice plate, formation comprises valve gap, valve body and valve rod, internal thread is offered on cylindrical hole top in the middle part of valve body, outside thread is offered on valve rod top, valve rod inserts in the cylindrical hole in the middle part of valve body and is connected with valve body screw thread, valve gap is covered on the top of cylindrical hole in the middle part of valve body, valve gap connecting rod is offered outside thread and is threaded with cylindrical hole in the middle part of valve body, its improvements are: described valve stem top offers interior hexagonal screw, and valve rod body of rod circumference has the groove of assembling valve stem packing ring in it.
Above-mentioned a kind of burner gas flow regulating orifice plate, described in the valve stem packing ring be assemblied on the valve rod body of rod be O RunddichtringO, the cylindrical hole internal diameter in the middle part of its diameter and valve body matches.
Above-mentioned a kind of burner gas flow regulating orifice plate, interior hexagonal screw is offered at described valve gap top, valve gap connecting rod assembles O type valve bonnet seal circle, and its diameter is greater than the cylindrical hole internal diameter 1 ~ 2mm in the middle part of valve body.
The beneficial effects of the utility model are:
The utility model offers interior hexagonal screw at valve stem top and valve gap top, can realize regulating the rotation of valve rod with the inner hexagon spanner of high-torque, the problem that cannot regulate can not be caused because of the corrosion of valve rod and valve body joint, there is easy to adjust, feature efficiently; The O RunddichtringO be assemblied on valve rod and bonnet lower connecting rod can realize the excellent sealing of coal gas, stops the potential safety hazard that gas leakage occurs.The utility model structure is simple, regulate fast, convenient and safe coefficient high, has good popularizing application prospect.
Accompanying drawing explanation
Fig. 1 is the utility model assembling schematic diagram;
Fig. 2 is valve rod schematic diagram;
Fig. 3 is valve gap schematic diagram;
In figure, mark is as follows: valve gap 1, valve body 2, valve rod 3, groove 4, valve stem packing ring 5, valve bonnet seal circle 6, valve gap connecting rod 7.
Embodiment
Fig. 1 ~ Fig. 3 shows, the utility model formation comprises valve gap 1, valve body 2 and valve rod 3, internal thread is offered on cylindrical hole top in the middle part of valve body 2, outside thread is offered on valve rod 3 top, valve rod 3 inserts in the cylindrical hole in the middle part of valve body 2 and is threaded with valve body 2, valve gap 1 is covered on the top of cylindrical hole in the middle part of valve body 2, valve gap connecting rod 7 is offered outside thread and is threaded with cylindrical hole in the middle part of valve body 2, interior hexagonal screw is offered at the top of valve rod 3, valve rod 3 body of rod circumference has the groove 4 of assembling valve stem packing ring 5 in it, valve stem packing ring 5 is O RunddichtringO, cylindrical hole internal diameter in the middle part of its diameter and valve body 2 matches, interior hexagonal screw is offered at the top of valve gap 1, valve gap connecting rod 7 assembles O type valve bonnet seal circle 6, and its diameter is greater than the cylindrical hole internal diameter 1 ~ 2mm in the middle part of valve body 2.
The utility model changes a word groove at valve rod 3 top into interior hexagonal screw, the inner hexagon spanner utilizing moment of torsion larger realizes regulating the rotation of valve rod 3, be convenient to adjustment and dismounting, overcome the technical barrier that the adjustment caused due to the corrosion of valve rod 3 rotates difficulty; The O RunddichtringO that the middle part of valve rod 3 is installed, moves up and down in process at valve rod 3, ensure with valve body 2 in the middle part of the close contact of cylindrical hole inwall, prevent coal gas excessive; Valve gap 1 increases O RunddichtringO newly, even if wearing and tearing appear in the O RunddichtringO at valve rod 3 place, also can ensure that coal gas is not excessive when valve gap 1 covers, two O RunddichtringOs with the use of, the tightness of regulating orifice plate can be increased, stop the potential safety hazard of gas leakage.
Claims (3)
1. a burner gas flow regulating orifice plate, formation comprises valve gap (1), valve body (2) and valve rod (3), internal thread is offered on the cylindrical hole top at valve body (2) middle part, outside thread is offered on valve rod (3) top, valve rod (3) inserts in the cylindrical hole at valve body (2) middle part and is threaded with valve body (2), valve gap (1) is covered on the top of valve body (2) middle part cylindrical hole, valve gap connecting rod (7) is offered outside thread and is threaded with valve body (2) middle part cylindrical hole, be characterised in that: interior hexagonal screw is offered at described valve rod (3) top, valve rod (3) body of rod circumference has the groove (4) of assembling valve stem packing ring (5) in it.
2. a kind of burner gas flow regulating orifice plate as claimed in claim 1, is characterized in that: described in the valve stem packing ring (5) be assemblied on valve rod (3) body of rod be O RunddichtringO, its diameter and valve body (2) middle part cylindrical hole internal diameter match.
3. a kind of burner gas flow regulating orifice plate as claimed in claim 1 or 2, it is characterized in that: interior hexagonal screw is offered at described valve gap (1) top, valve gap connecting rod (7) upper assembling O type valve bonnet seal circle (6), its diameter is greater than the cylindrical hole internal diameter 1 ~ 2mm at valve body (2) middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520391911.1U CN204828919U (en) | 2015-06-09 | 2015-06-09 | Nozzle coal gas flow control orifice plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520391911.1U CN204828919U (en) | 2015-06-09 | 2015-06-09 | Nozzle coal gas flow control orifice plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828919U true CN204828919U (en) | 2015-12-02 |
Family
ID=54686522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520391911.1U Expired - Fee Related CN204828919U (en) | 2015-06-09 | 2015-06-09 | Nozzle coal gas flow control orifice plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828919U (en) |
-
2015
- 2015-06-09 CN CN201520391911.1U patent/CN204828919U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20151202 Termination date: 20180609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |