CN2906225Y - Adjustable valve - Google Patents
Adjustable valve Download PDFInfo
- Publication number
- CN2906225Y CN2906225Y CN 200620012470 CN200620012470U CN2906225Y CN 2906225 Y CN2906225 Y CN 2906225Y CN 200620012470 CN200620012470 CN 200620012470 CN 200620012470 U CN200620012470 U CN 200620012470U CN 2906225 Y CN2906225 Y CN 2906225Y
- Authority
- CN
- China
- Prior art keywords
- spool
- valve core
- valve
- wall
- jacket casing
- 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 - Fee Related
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- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model relates to a control valve, belonging to the field of valves, which comprises parts as follows: a screw, a screw cap, a gland, a shelter, a valve stem, a seal ring, a flow export, a welding port, a valve core and a sleeve, wherein, the valve core comprises valve core plug, valve core pipe, seal ring, guide bar, decompression orifice and flow orifice positioned on the wall of the valve core pipe; the sleeve covers the valve core, the wall of the sleeve is provided with the flow orifice. The decompression orifice has the function of reducing the press, the flow orifice has the function of controlling the flow, which makes the switch controlled easily, the valve core can be shut easily and insusceptibly when the pressure difference is large in use, the effect of zero leakage can be reached when the valve is completely shut, and cavitation won't happen when the flow changes.
Description
Technical field
The utility model relates to a kind of modulating valve, belongs to valve field.
Background technique
Modulating valve in the prior art is mainly used in the switch of being responsible for liquid pipe or tracheae.When the valve pressure difference was big, spool was difficult to close.Or just close motionlessly at all, so frequent leakage can occur, when changes in flow rate, the differential pressure of modulating valve also can the manservant of an official changes, so the shortcoming that cavitates takes place easily.
The model utility content
In order to overcome the deficiency that existing modulating valve leaks easily or cavitates, the purpose of this utility model is: provide a kind of difficult generation to leak or cavitation erosion the high-quality modulating valve of high efficiency.
The technological scheme that its technical problem that solves the utility model adopts is as follows: a kind of modulating valve comprises following former parts: screw, screw cap, gland, loam cake, valve rod, seal ring, flow direction outlet, soldering opening, spool also comprise jacket casing; Described spool comprises spool plug, valve core tube, seal ring, guide rod, also comprises vent, metering orifice, and the spool tube wall is provided with metering orifice; Described jacket casing is enclosed within outside the spool, and the jacket casing wall is provided with metering orifice.
Say that further a kind of modulating valve comprises following former parts: screw, screw cap, gland, loam cake, valve rod, seal ring, flow direction outlet, soldering opening, spool, jacket casing; Described spool comprises spool plug, valve core tube, spool wall, seal ring, guide rod, also comprise vent, metering orifice, described seal ring be arranged on spool beyond the Great Wall portion spool plug and spool wall are tightly connected, described vent passes spool plug and spool wall, join with jacket casing, described guide rod is a straight-bar, and the part of guide rod is embedded in the spool plug, and another part is in the valve core tube; Stream with uniform distribution metering-orifice on the tube wall of described valve core tube; Jacket casing can be enclosed within outside the spool just, and jacket casing is enclosed within the outer part of valve core tube on the jacket casing wall, and metering orifice shape in the shape of a spiral distributes.
Compared with prior art, the beneficial effects of the utility model are:
1. be provided with metering orifice and vent on spool, the skin of spool also is with a jacket casing.The effect of its jacket casing is used for alleviating pressure medium, its vent plays and reduces pressure, the important size that plays control flow rate of metering orifice, so easy control switch, even in use work as under the big situation of pressure difference, spool is closed also and can be affected, shut operation easily, when valve is closed fully, can reach the characteristics of zero leakage, when changes in flow rate, can not cavitate yet.
2. the differential pressure of this valve sponges by the porous slab assembly is at different levels, so can be with the vibration control of the spool scope in minimum, because of a little operational torques have reduced.Efficient and quality have been improved.
Description of drawings
Fig. 1 is the structural representation of the utility model modulating valve;
Fig. 2 is the spool cross-sectional view of the utility model modulating valve.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
See also the embodiment of the utility model modulating valve of Fig. 1-shown in Figure 3.
Embodiment 1
A kind of modulating valve comprises following former parts: screw 1, screw cap 2, gland 3, loam cake 4, valve rod 5, seal ring 6, flow direction outlet 7, welding 8, spool 9, jacket casing 10; Described spool 9 comprises spool plug 9.1, valve core tube 9.2, spool wall 9.3, seal ring 9.4, guide rod 9.5, also comprise vent 9.6, metering orifice 9.7, described seal ring 9.4 is arranged on spool plug 9.1 tops is tightly connected spool plug 9.1 and spool wall 9.3, described vent 9.6 passes spool plug 9.1 and spool wall 9.3, described guide rod 9.5 is a straight-bar, the part of guide rod 9.5 is embedded in the spool plug 9.1, and another part is in the valve core tube 9.2; Stream with uniform distribution metering-orifice 9.7 on the tube wall of described valve core tube 9.2; Jacket casing 10 can be enclosed within outside the spool 9 just, and jacket casing 10 is enclosed within valve core tube 9.2 part outward on the jacket casing wall, and metering orifice 9.7 shape in the shape of a spiral distributes.
Claims (4)
1, a kind of modulating valve comprises following former parts: screw, screw cap, gland, loam cake, valve rod, seal ring, flow direction outlet, soldering opening, spool, and described spool comprises spool plug, valve core tube, seal ring, guide rod; It is characterized in that: also comprise jacket casing, described spool also comprises vent, metering orifice, and the spool tube wall is provided with metering orifice; Described jacket casing is enclosed within outside the spool, and the jacket casing wall is provided with metering orifice.
2, modulating valve according to claim 1 is characterized in that: described vent passes spool plug and spool wall, joins with jacket casing.
3, modulating valve according to claim 1 is characterized in that: described metering orifice is evenly distributed on the spool tube wall.
4, modulating valve according to claim 1 is characterized in that: described metering orifice shape in the shape of a spiral is distributed on the jacket casing wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620012470 CN2906225Y (en) | 2006-04-19 | 2006-04-19 | Adjustable valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620012470 CN2906225Y (en) | 2006-04-19 | 2006-04-19 | Adjustable valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906225Y true CN2906225Y (en) | 2007-05-30 |
Family
ID=38114860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620012470 Expired - Fee Related CN2906225Y (en) | 2006-04-19 | 2006-04-19 | Adjustable valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906225Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047438A (en) * | 2011-10-13 | 2013-04-17 | 中国石油化工集团公司 | Valve capable of regulating pressure drop |
-
2006
- 2006-04-19 CN CN 200620012470 patent/CN2906225Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047438A (en) * | 2011-10-13 | 2013-04-17 | 中国石油化工集团公司 | Valve capable of regulating pressure drop |
| CN103047438B (en) * | 2011-10-13 | 2014-10-15 | 中国石油化工集团公司 | Valve capable of regulating pressure drop |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 |