CN202358690U - Spherical flow adjusting valve - Google Patents
Spherical flow adjusting valve Download PDFInfo
- Publication number
- CN202358690U CN202358690U CN2011203437036U CN201120343703U CN202358690U CN 202358690 U CN202358690 U CN 202358690U CN 2011203437036 U CN2011203437036 U CN 2011203437036U CN 201120343703 U CN201120343703 U CN 201120343703U CN 202358690 U CN202358690 U CN 202358690U
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- valve
- outlet
- ball valve
- type ball
- valve core
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- Expired - Fee Related
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Abstract
The utility model provides a spherical flow adjusting valve with simple structure, capability of accurately controlling and adjusting the flow of a gas powder medium, strong wear resistance and self-cleaning capacity. The spherical flow adjusting valve comprises a valve main body, wherein the valve main body comprises a valve body and flange plates which are connected with two ends of the valve body, wherein an inlet and an outlet which are communicated with each other are formed in the middle of the valve main body; the inlet and outlet are both of flared shapes with larger outside apertures and small inside apertures; a valve seat, two ends of which are communicated with each other, is arranged at the hollow connected part of the inlet and the outlet; a V-shaped ball valve core is mounted in the valve seat; the V-shaped ball valve core is in hard sealed connection with the valve seat; and an upper valve rod and a lower valve rod, which are used for rotating the V-shaped ball valve core, are respectively arranged at upper and lower ends of the V-shaped ball valve core. The spherical flow adjusting valve provided by the utility model has the advantages of simple structure, fixed flow characteristic approximate to the percentage, capability of providing accurate control within a wide variation range, high wear resistance, self-cleaning property and the like.
Description
Technical field
The utility model relates to the valve arrangement field, refer more particularly to granular material Pneumatic conveying pipeline flow control valves such as a kind of blast-furnace coal powder injection system.
Background technology
Progressively raising along with the factory automation degree; In the blast-furnace coal powder injection system; Can automatically adjust to rate-of flow in the Pneumatic conveying pipeline as required, pipeline system weares and teares or adjusting coal dust operational throughput to reduce, so control cock has obtained increasing application.
But because the characteristic of gas-powder flow, need regulate the valves can accurate flow adjustment, has self-cleaning, wear-resisting, explosion-proof characteristic simultaneously.
Therefore, need a kind of simple in structure, self-regulating valve of flow of being applicable to gas powder two-phase medium of design.
Summary of the invention
The utility model technical matters to be solved; It is technical deficiency to above-mentioned existence; Provide a kind of simple in structure, can carry out accurate flow control and adjusting, and have the spherical flow control valve of strong wear-resisting effect and self-cleaning ability gas powder medium.
For solving the problems of the technologies described above, the technical scheme of the utility model is following: spherical flow control valve, and it includes valve body; Valve body includes valve body and is connected the flange at valve body two ends, it is characterized in that: have import and the outlet that is connected in the middle of the described valve body, import and outlet be into outside bore big; Little horn-like of the inside bore; In the middle vacancy of import with the outlet connecting portion, be provided with the valve seat that two is connected, V-type ball valve core is installed in the valve seat; V-type ball valve core and valve seat are for be tightly connected firmly, and V-type ball valve core is respectively arranged with upper valve rod and the lower valve rod that is used to rotate V-type ball valve core in two ends up and down.
In such scheme, described import and outlet inwall, and the inwall in the middle vacancy of import and outlet connecting portion are provided with one deck wear-resistant ceramic liner.
Wear-resistant ceramic is to be primary raw material with AL2O3, is flux with the rare metal oxide, through the extraordinary corundum ceramic that 1,700 degree high-temperature roastings form, the product that forms with specific rubber and high-intensity organic/inorganic binder combination respectively again.Its hardness is only second to adamas, and wear resisting property under equal operating mode, has prolonged service life of equipment considerably beyond wear-resistant steel and corrosion-resistant steel greatly, is applicable to the dielectric property of coal spraying pipeline.
In such scheme, the material of described V-type ball valve core also is a wear-resistant ceramic, and V-type ball valve core is close to valve seat and is rotated, and when rotating to certain angle, the V-type slit appears in seals at, and increases with the anglec of rotation, and the slit increases thereupon, is used to regulate the flow of gas powder.
Spool adopts V-type ball valve core; V-type ball valve core is in turning course; V-notch and valve seat produce powerful impurity such as shearing force ability cut fibres, avoid the valve stuck phenomenon to take place, simultaneously owing to be the revolution of no gap between spool and the valve seat; Incrustation thing on wiping spheroid and the valve seat keeps the excellent sealing between spheroid and the valve seat voluntarily.
In the rotary course of V-type ball valve core; Gas powder medium constantly changes through the actual internal area of spool, but because V-type ball valve wicking surface has the vee-type breach, rotation in any case; The shape at circulation interface remains triangle; Therefore V-type ball valve core has the inherent flow characteristic, of an approximate equal percentage and up to the regulating ratio of 300:1, can in the variation range of the wide width of cloth, accurate control be provided, and has guaranteed that valve all has good adjusting function under various apertures.
The principle of the utility model is to adopt the spool of V-type ball valve core as valve, and along with the rotation of spheroid, actual internal area constantly changes, but the shape at circulation interface remains triangle, thereby realizes the regulating action of valve.
The beneficial effect of the utility model is:
1, V-type ball valve core has the inherent flow characteristic, of an approximate equal percentage, can in the variation range of the wide width of cloth, accurate control be provided.
2 wear-resistant ceramic liners have prolonged service life of equipment greatly, are applicable to the dielectric property of coal spraying pipeline.
3 adopt hard sealing structure, and impurity such as ability cut fibres have self-cleaning function, avoid the valve stuck phenomenon to take place.
4 select air-actuator for use, satisfy the fire-proof and explosion-proof requirement in working space.
5 volumes are little, in light weight, simple in structure, good seal performance, are a kind of valves that real high efficiency is controlled state of arts.
Description of drawings
Fig. 1 is the utility model example structure cutaway view
Among the figure: 1-suction flange 2-valve body 3-discharge flange 4-import wear-resistant sleeve 5-outlet wear-resistant sleeve 6-valve seat 7-wear sleeve
8-V type ball valve core 9-upper valve rod 10-import 11-lower valve rod 12-outlet.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is explained further details.
Spherical flow control valve as shown in Figure 1, it includes valve body, and valve body includes valve body 2 and suction flange that is connected the valve body two ends 1 and discharge flange 3; Have the import 10 and outlet 12 that are connected in the middle of the wherein said valve body; Import 10 is to outside bore is big with outlet 12, and bore little horn-like in the inside is in the middle vacancy of import 10 with outlet 12 connecting portions; Be provided with the valve seat 6 that two is connected; V-type ball valve core 8 is installed in the valve seat 6, and V-type ball valve core 8 and valve seat 6 are for be tightly connected firmly, and V-type ball valve core is respectively arranged with the upper valve rod 9 and lower valve rod 11 that is used to rotate V-type ball valve core in two ends about in the of 8.
In the present embodiment, described import 10 and outlet 12 inwalls are provided with one deck wear-resistant ceramic liner, and the import inwall is an import wear-resistant sleeve 4, and the outlet inwall is outlet wear-resistant sleeve 5, and outside valve seat 6, is provided with wear sleeve 7.
Wear-resistant ceramic is to be primary raw material with AL2O3, is flux with the rare metal oxide, through the extraordinary corundum ceramic that 1,700 degree high-temperature roastings form, the product that forms with specific rubber and high-intensity organic/inorganic binder combination respectively again.Its hardness is only second to adamas, and wear resisting property under equal operating mode, has prolonged service life of equipment considerably beyond wear-resistant steel and corrosion-resistant steel greatly, is applicable to the dielectric property of coal spraying pipeline.
In the present embodiment, the material of described V-type ball valve core 8 also is a wear-resistant ceramic, and V-type ball valve core 8 is close to valve 6 and is rotated, and when rotating to certain angle, the V-type slit appears in seals at, and increases with the anglec of rotation, and the slit increases thereupon, is used to regulate the flow of gas powder.
Spool adopts V-type ball valve core 8; V-type ball valve core 8 is in turning course; V-notch and valve seat 6 produce powerful impurity such as shearing force ability cut fibres, avoid the valve stuck phenomenon to take place, simultaneously owing to be the revolution of no gap between V-type ball valve core 8 and the valve seat 6; Incrustation thing on wiping spheroid and the valve seat keeps the excellent sealing between spheroid and the valve seat 6 voluntarily.
In the rotary course of V-type ball valve core 6; Gas powder medium constantly changes through the actual internal area of spool, but because what adopt is the vee-type ball valve, rotation in any case; The shape at circulation interface remains triangle; Therefore V-type ball valve core 8 has the inherent flow characteristic, of an approximate equal percentage and up to the regulating ratio of 300:1, can in the variation range of the wide width of cloth, accurate control be provided, and has guaranteed that valve all has good adjusting function under various apertures.
In addition; The utility model embodiment device is rotated through pneumatic drive mechanism, is power gas source with pressurized air or nitrogen, through the mechanical drive valve rod of piston-rack, gear; With 0 ~ 90 ° of the moment of torsion rotating sphere of angle stroke output, just can accomplish switching motion or regulate and move.Go up simultaneously lower valve rod and control by supporting electropneumatic valve positioner, supporting electropneumatic valve positioner input 4-20mA current signal, the anglec of rotation (0-90 ° is arbitrarily angled) of change spool realizes parameters such as regulating control flow.
Claims (3)
1. spherical flow control valve, it includes valve body, and valve body includes valve body and the flange that is connected the valve body two ends; It is characterized in that: have import and the outlet that is connected in the middle of the described valve body; Import and outlet are to outside bore is big, and bore little horn-like in the inside is in the middle vacancy of import with the outlet connecting portion; Be provided with the valve seat that two is connected; V-type ball valve core is installed in the valve seat, and V-type ball valve core and valve seat are for be tightly connected firmly, and V-type ball valve core is respectively arranged with upper valve rod and the lower valve rod that is used to rotate V-type ball valve core in two ends up and down.
2. spherical flow control valve as claimed in claim 1 is characterized in that: described import and outlet inwall, and the inwall in the middle vacancy of import and outlet connecting portion are provided with one deck wear-resistant ceramic liner.
3. spherical flow control valve as claimed in claim 1 is characterized in that: the material of described V-type ball valve core is a wear-resistant ceramic, and V-type ball valve wicking surface has the vee-type breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203437036U CN202358690U (en) | 2011-09-14 | 2011-09-14 | Spherical flow adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203437036U CN202358690U (en) | 2011-09-14 | 2011-09-14 | Spherical flow adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202358690U true CN202358690U (en) | 2012-08-01 |
Family
ID=46569896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203437036U Expired - Fee Related CN202358690U (en) | 2011-09-14 | 2011-09-14 | Spherical flow adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202358690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442554A (en) * | 2011-09-14 | 2012-05-09 | 中冶南方工程技术有限公司 | Spherical flow adjusting valve |
-
2011
- 2011-09-14 CN CN2011203437036U patent/CN202358690U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442554A (en) * | 2011-09-14 | 2012-05-09 | 中冶南方工程技术有限公司 | Spherical flow adjusting 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 |
Granted publication date: 20120801 Termination date: 20150914 |
|
| EXPY | Termination of patent right or utility model |