CN201062668Y - Slip regulating valve with protection and flow guiding structure - Google Patents
Slip regulating valve with protection and flow guiding structure Download PDFInfo
- Publication number
- CN201062668Y CN201062668Y CNU2007201107995U CN200720110799U CN201062668Y CN 201062668 Y CN201062668 Y CN 201062668Y CN U2007201107995 U CNU2007201107995 U CN U2007201107995U CN 200720110799 U CN200720110799 U CN 200720110799U CN 201062668 Y CN201062668 Y CN 201062668Y
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- valve
- flow guide
- guide structure
- import
- axis
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Abstract
The utility model relates to a regulating valve used in a high pressure pipeline system for delivering highly wearable and corrosive material. The utility model solves the technical problems that the provided valve is expected to have the properties of impact and vibration resistance, wear resistance, high intensity and long service life. The utility model adopts the technical proposal that a slurry regulating valve with a protective flow guiding structure is provided, the axial line of the valve inlet opening is vertical to the axial line of the valve outlet opening, a valve seat is embedded atthe outlet opening in the valve, a valve stem which can move linearly is extended into the valve from the outside of the valve body, and a valve head matched with the valve seat is fixed at the top of the valve stem; the protective flow guiding structure is arranged in the valve, and is extended to the edge of the valve stem from the pipe wall at the top end of the inlet opening, the front half part of the structure is arc shaped and is bent toward the outlet opening in the valve, and the edge of the top end of the structure is in certain distance from the axial line of the inlet opening. The top end edge of the protective flow guiding structure is a straight line, and is shorten than 3 cm away from the axial line of the inlet opening. The top end edge of the protective flow guiding structure can also be arc shaped.
Description
Technical field
The utility model relates to a kind of regulating valve, especially carries the modulating valve that uses in the high pressure pipe line system of strong abrasiveness and corrosivity material.
Background technique
This valve is mainly used in alumina producing factory high pressure stripping workshop from evaporator drier feed system.By of the adjusting of this valve, keep desirable pressure, liquid level (capacity) and the temperature of alumina slurry in the from evaporator drier, to obtain best output and to guarantee from evaporator drier safety to flow.
From evaporator drier keeps suitable high pressure, the condition of high temperature at work.For this reason, to this valve have the nominal pressure height (6.3～16.0MPa), operating temperature height (about 300 ℃), allow to regulate slip flow velocity height (15-45m/s), erosion resistance, wear-resistant, every harsh requirement such as safe in utilization.
The structure of the modulating valve that conventional from evaporator drier feed system adopts is by shown in Figure 1: the axis 10 of this valve import 2 is arranged vertically substantially with the axis 12 of outlet 1, outlet position in the valve is embedded with the valve seat 6 that has pod apertures in the middle of, can stretch in the valve from the valve body outside along the axis that exports by straight-line valve rod 3, valve stem tip is fixed with the valve head 5 that high-abrasive material is made; Valve rod advances, valve head just insert in the valve seat pod apertures 6-1 (valve head is arranged in figure double dot dash line position) thus throttle down; Valve rod retreats, and opens valve thereby valve head just breaks away from valve seat, and material just can pass through smoothly.
Because alumina slurry is a slurries shape particulate matter, be alkalescence, easily scab, equipment there is abrasive acrion; And very high from the alumina slurry speed (direction A) of valve inlet input, the valve rod of arranging with the import axis normal stands in the breach and is subjected to the impact of alumina slurry.Because valve rod is positioned at runner central authorities, the valve head of valve rod is again to be tightened in the valve rod screw (and adding that stop pin 8 prevents to get loose) by the body screw rod.Under the high speed erosion of alumina slurry, very easily produce following consequence:
1, be in positive valve rod, valve head and the connecting part of directly impacting thereof very easily by erosion, wearing and tearing, valve rod working life only is about one month; And often because of the connecting part produces loosening, fracture, valve head comes off and causes equipment accident.
2, bear the positive valve interior wall position of directly impacting by the erosion attenuation, the valve body bearing capacity is reduced, and then also reduced valve working life.
The model utility content
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of improvement of regulating valve is provided, and this valve should have the characteristics of shock resistance vibrations, high abrasion, intensity height, long service life.
The technical solution adopted in the utility model is: the slip modulating valve with protection flow guide structure, the axis of this valve import becomes to be arranged vertically with the axis of outlet, outlet position in the valve is embedded with the valve seat that has pod apertures in the middle of, can stretch in the valve from the valve body outside along the axis that exports by straight-line valve rod, valve stem tip is fixed with the valve head that cooperates with valve seat; The juncture area of the axis of the axis of import and outlet is provided with a protection flow guide structure in the described valve, this protection flow guide structure extends to the valve rod limit forward by the tube wall place, top of import, the outlet position bending of first half camber in valve of protection flow guide structure, and the edge, top of this structure and import axis keep suitable distance, so as to prevent material to valve rod wash away and will be from the pod apertures in the middle of the direct guide valve seat of the material that import enters.
The edge, top of described protection flow guide structure is a straight line, with the import axial line distance be in the 3cm.
The edge, top of described protection flow guide structure is an arc.
Adopt the utility model, have following beneficial effect:
1, prevents erosion; The protection flow guide structure that the utility model adds stopped substantially the high-speed motion slip to valve rod and with the direct erosion of valve head binding site, make valve rod, valve head and be used in combination the life-span to have prolonged 3～5 times.Solved original structure and caused from evaporator drier pressure sharply to rise, explosion caused potential safety hazard because of valve head comes off, stops up runner.
2, water conservancy diversion; The protection flow guide structure that is added has played guide functions to the slip of flow valve, and the guiding slip flows through valve with the minimum flow resistance direction; And then reduced the flow resistance of modulating valve.
Description of drawings
Fig. 1 is the structural representation of existing valve.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the left apparent direction structural representation at the valve inlet position among Fig. 2.
Embodiment
By Fig. 2, Fig. 3 as can be known: modulating valve with valve head coupling sleeve, the axis 10 of this valve import 2 is arranged vertically for 12 one-tenth with the axis of outlet 1, outlet position in the valve is embedded with the valve seat 6 that has pod apertures 6-1 in the middle of, valve seat 6 is positioned in the valve by 7 holdings of valve circle, and the runner 7-1 in the valve circle 7 directly is connected with pod apertures 6-1; Can stretch in the valve from the valve body outside along the axis that exports by straight-line valve rod 3, valve stem tip is fixed with the valve head 5 that high-abrasive material is made.
The juncture area of the axis of the utility model import in valve and the axis of outlet is provided with a protection flow guide structure 11, this protection flow guide structure extends to valve rod limit (general and valve rod keeps the 10-30mm distance), the outlet position bending of first half camber in valve of protection flow guide structure forward by the 2-1 tube wall place, top of import 2; Edge, the top 11-1 of this protection flow guide structure is generally lineal shape, the distance H of this edge and import axis 10 is in the 3cm, be that import axis 10 top 3cm are to import axis below (valve seat one side in the valve) 3cm, so that prevent material to the washing away of valve rod, and will be from the leadout hole in the middle of the direct guide valve seat of the material that import enters.
As preferably, the edge, top of described protection flow guide structure is positioned at import axis below 2cm (position shown in Fig. 3).
In addition, the edge, top of described protection flow guide structure also can be as shown in the figure lineal shape, (center and the import axial line distance of protecting the edge, top of flow guide structure this moment should be in the 3cm and adopt the arc that the centre is high, both sides are low, preferred 2cm below the import axis), has same effect.
The thickness of above-described protection flow guide structure, the size of arc all can change according to the different operating modes of from evaporator driers at different levels; The flow-guiding mouth that is intended to make the slip that is entered by import directly to guide to valve seat gets final product.This protection flow guide structure (casting, welding etc.) by rights combines with valve body.
In addition, in the utility model, the bind mode of valve head 5 and valve rod 3, and the orientation type of valve seat 6 and valve circle 7, can be respectively selected in Fig. 1, structure shown in Figure 2.
Claims (3)
1. the slip modulating valve that has the protection flow guide structure, the axis (12) of this valve import (2) becomes to be arranged vertically with the axis (12) of outlet (1), outlet position in the valve is embedded with the valve seat (6) that has pod apertures (6-1) in the middle of, can stretch in the valve from the valve body outside along the axis that exports by straight-line valve rod (3), valve stem tip is fixed with the valve head (5) that cooperates with valve seat; The axis that it is characterized in that import in the described valve is provided with one with the juncture area of the axis of outlet and protects flow guide structure (11), this protection flow guide structure extends to the valve rod limit forward by the tube wall place, top of import, the outlet position bending of first half camber in valve of protection flow guide structure, and the edge, top of this structure and import axis keep suitable distance, so as to prevent material to valve rod wash away and will be from the pod apertures in the middle of the direct guide valve seat of the material that import enters.
2. according to claim 1 have the protection flow guide structure the slip modulating valve, the edge, top (11-1) that it is characterized in that described protection flow guide structure is a straight line, with import axial line distance (H) be in the 3cm.
3. the slip modulating valve with protection flow guide structure according to claim 1 is characterized in that the edge, top of described protection flow guide structure is an arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201107995U CN201062668Y (en) | 2007-07-05 | 2007-07-05 | Slip regulating valve with protection and flow guiding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201107995U CN201062668Y (en) | 2007-07-05 | 2007-07-05 | Slip regulating valve with protection and flow guiding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201062668Y true CN201062668Y (en) | 2008-05-21 |
Family
ID=39451043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201107995U Expired - Fee Related CN201062668Y (en) | 2007-07-05 | 2007-07-05 | Slip regulating valve with protection and flow guiding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201062668Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214352A (en) * | 2014-08-29 | 2014-12-17 | 超达阀门集团股份有限公司 | Wear-resistant and scour-resistant valve |
-
2007
- 2007-07-05 CN CNU2007201107995U patent/CN201062668Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214352A (en) * | 2014-08-29 | 2014-12-17 | 超达阀门集团股份有限公司 | Wear-resistant and scour-resistant 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: 20080521 Termination date: 20140705 |
|
| EXPY | Termination of patent right or utility model |