CN204784824U - Linear regulated flow ball valve - Google Patents
Linear regulated flow ball valve Download PDFInfo
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- CN204784824U CN204784824U CN201520515142.1U CN201520515142U CN204784824U CN 204784824 U CN204784824 U CN 204784824U CN 201520515142 U CN201520515142 U CN 201520515142U CN 204784824 U CN204784824 U CN 204784824U
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Abstract
The utility model belongs to the technical field of the flow control technique and specifically relates to a linear regulated flow ball valve, including valve body, valve rod and case, its characterized in that be equipped with on the sealed face of case opening lateral wall and close close point flow accessory mounting hole, it closes close point flow accessory rather than matched with to be equipped with in the close point flow accessory mounting hole of pass, by adopting the above structure, the utility model, have simple structure, dismantle convenient, when control is convenient, response speed fast, the flow parameter was linear increase, locking when the case was opened advantage such as case constant flow.
Description
Technical field
The utility model relates to flow control technique field, specifically a kind of ball valve for carrying out linearly adjust for piping flow.
Background technique
At present, the valve of adjust flux mostly is plunger stop valve, and stop valve presses down valve rod regulating spool by straight line, is difficult to realize automatically controlling; Although conventional ball valve is easier to realize accurate adjustment aperture by reducing motor, the flow curve of this ball valve core is equal percentage curve, is usually used in controlling opening and closing, is difficult to be locked by ball valve regulate with certain constant flow rate.
Through retrieval, CN104653806 discloses a kind of aperture and the linear electric linear ball valve of flow, and it comprises V hole ball valve core, valve body, valve rod, and the through hole that the center of V hole ball valve core is provided with cross section semicircular in shape and half square combination is called V duct; The center of valve body is valve core chamber; Be provided with flange above valve body, described flange center is provided with the rod aperture that valve core chamber communicates; Valve rod is the copper component of cylinder rod; V hole ball valve core is arranged in valve core chamber, and valve stem slides is positioned at rod aperture, and lower end and the V hole ball valve core of valve rod are fastened and connected, and the upper end of valve rod protrudes from above flange; During work, the aperture of V hole ball valve core and the flow flowing through valve body internal channel is utilized to be corresponding linear relationship, V hole ball Spool rotating is driven to carry out the technological scheme of linear scale control flow by motor driver through valve rod, make the electric linear valve for Flow-rate adjustment in automatic pilot line, although this structure also can solve the Substantial technical problem of linearly adjust, but flow parameter cannot be met linearly increase, and during locking valve, spool cannot use with constant small flow.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provide that a kind of structure is simple, when convenient disassembly, control are convenient, fast response time, spool are opened flow parameter linearly increase, the linearly adjust flow ball valve of spool constant flow when locking.
The utility model solves the technological scheme that its technical problem adopts:
A kind of linearly adjust flow ball valve, comprise valve body, valve rod and spool, it is characterized in that the sealing surface of described valve core opening sidewall is provided with and close close point flow capability mounting hole, the pass close point flow capability matched with it is provided with, to reach the function of constant flow when Locked valve is closed in the close point flow capability mounting hole of described pass.
Valve core opening described in the utility model be by the transverse section of sealing surface end be small arc-shaped small arc surface, depart from parabolic manner the arc shaped surface outwards extended at center gradually along small arc surface two ends and the great circle cambered surface being connected to two parabolic arc faces is formed, be beneficial to when valve rod controls valve core rotation, current flow through the small arc surface of valve core opening, arc shaped surface and great circle cambered surface gradually, achieve the object of valve flow with aperture linear change.
Small arc surface radius described in the utility model is 0.6 ~ 0.8 times of valve ball radius, and the parabolic shape of described arc shaped surface is x=a*y
2wherein a is 0.5 ~ 2, described large circular arc radius is 0.6 ~ 0.8 times of valve ball radius, when this opening achieves valve core rotation, first half stroke spool opening area is that equal percentage increases, later half stroke spool opening area linearly increases, thus reaches in whole valve opening stroke, and flow linearly increases.
The utility model is provided with small flow through hole on the close point flow capability of described pass, to reach the effect passed through for constant small flow during valve closing.
Small flow through-hole aperture described in the utility model is 0.01 ~ 0.15 times of valve ball radius, is beneficial to as requested, changes different pass close point flow capability.
Pass described in the utility model close point flow capability is connected with pass close point flow capability mounting hole through screw thread, realizing when not tearing ball valve open, changing the pass close point flow capability of different pore size, facilitate dismounting according to different traffic requirements reaching.
The structure that pass described in the utility model close point flow capability mounting hole and pass close point flow capability match, can adopt cylindrical, also can adopt taper shape.
The utility model owing to adopting said structure, have that structure is simple, when convenient disassembly, control are convenient, fast response time, spool are opened flow parameter linearly increase, the advantage such as spool constant flow when locking.
Accompanying drawing explanation
Fig. 1 is decomposition texture schematic diagram of the present utility model.
Fig. 2 is the stereogram of spool.
Fig. 3 is the whole-cutaway view of Fig. 2.
Reference character: valve body 1, valve rod 2, spool 3, pass close point flow capability mounting hole 4, pass close point flow capability 5, small arc surface 6, arc shaped surface 7, great circle cambered surface 9, through hole 8, small flow through hole 10.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated:
As shown in drawings, a kind of linearly adjust flow ball valve, comprise valve body 1, valve rod 2 and spool 3, structure and the annexation of valve body 1, valve rod 2 and spool 3 are same as the prior art, this does not repeat, it is characterized in that the sealing surface of described spool 3 opening sidewalls is provided with and close close point flow capability mounting hole 4, in described pass close point flow capability mounting hole 4, be provided with the pass close point flow capability 5 matched with it, to reach the function of constant flow when Locked valve is closed.
Spool 3 opening described in the utility model be by the transverse section of sealing surface end be small arc-shaped small arc surface 6, depart from parabolic manner the arc shaped surface 7 outwards extended at center gradually along small arc surface 6 two ends and the great circle cambered surface 9 being connected to two arc shaped surfaces 7 is formed, be beneficial to when valve rod 2 control spool 3 rotate time, current flow through the small arc surface 6 of spool 3 opening, arc shaped surface 7 and great circle cambered surface 9 gradually, achieve the object of valve flow with aperture linear change.
Small arc surface 6 radius described in the utility model is 0.6 ~ 0.8 times of spool 3 radius of a ball, and the parabolic shape of described arc shaped surface 7 is x=a*y
2wherein a is 0.5 ~ 2, described orthodrome 9 radius is 0.6 ~ 0.8 times of spool 3 radius of a ball, this opening achieves spool 3 when rotating, first half stroke spool 3 opening area is that equal percentage increases, later half stroke spool 3 opening area linearly increases, thus reaches in whole valve opening stroke, and flow linearly increases.
The utility model is provided with small flow through hole 10 on described pass close point flow capability 5, the effect of constant minimum discharge during to play valve closing.
Small flow through-hole aperture described in the utility model is 0.01 ~ 0.15 times of valve ball radius, is beneficial to as requested, changes different pass close point flow capability.
Pass described in the utility model close point flow capability 5 is connected with pass close point flow capability mounting hole 4 through screw thread, realizing when not tearing ball valve open, changing the pass close point flow capability of different pore size, facilitate maintenance according to different traffic requirements reaching.
Pass described in the utility model close point flow capability mounting hole 4 can be cylindrical, also conically, can form the structure matched with described pass close point flow capability 5.
The utility model in use, small flow when first closing according to required spool 3, selection pass close point flow capability is the one in 0.01 ~ 0.15 times of valve ball radius, and described small arc surface radius is the one in 0.6 ~ 0.8 times of valve ball radius, and the parabolic shape of described arc shaped surface is x=a*y
2, wherein a is 0.5 ~ 2, and described large circular arc radius is the one in 0.6 ~ 0.8 times of valve ball radius; During valve open, when spool 3 rotates, first half stroke spool opening area is that equal percentage increases, and later half stroke spool opening area linearly increases, thus reaches in the process of whole valve open, and flow presents linear increase; When spool is closed, the corresponding water (flow) direction of through hole 8 of spool, now, current flow through the small flow through hole on the pass close point flow capability on sealing surface, when achieving valve closing, flow constant.
The utility model owing to adopting said structure, have that structure is simple, when convenient disassembly, control are convenient, fast response time, spool are opened flow parameter linearly increase with aperture, the advantage such as spool constant flow when locking.
Claims (6)
1. a linearly adjust flow ball valve, comprise valve body, valve rod and spool, it is characterized in that the sealing surface of described valve core opening sidewall is provided with and close close point flow capability mounting hole, in the close point flow capability mounting hole of described pass, be provided with the pass close point flow capability matched with it.
2. a kind of linearly adjust flow ball valve according to claim 1, it is characterized in that described valve core opening be by the transverse section of sealing surface end be small arc-shaped small arc surface, depart from parabolic manner the arc shaped surface outwards extended at center gradually along small arc surface two ends and the great circle cambered surface being connected to two parabolic arc faces is formed.
3. a kind of linearly adjust flow ball valve according to claim 2, it is characterized in that described small arc surface radius is 0.6 ~ 0.8 times of valve ball radius, the parabolic shape of described arc shaped surface is x=a*y
2, wherein a is 0.5 ~ 2, and described large circular arc radius is 0.6 ~ 0.8 times of valve ball radius.
4. a kind of linearly adjust flow ball valve according to claim 1, is characterized in that described pass close point flow capability is provided with small flow through hole.
5. a kind of linearly adjust flow ball valve according to claim 4, is characterized in that described small flow through-hole aperture is 0.01 ~ 0.15 times of valve ball radius.
6. a kind of linearly adjust flow ball valve according to claim 1, is characterized in that described pass close point flow capability is connected with pass close point flow capability mounting hole through screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520515142.1U CN204784824U (en) | 2015-07-16 | 2015-07-16 | Linear regulated flow ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520515142.1U CN204784824U (en) | 2015-07-16 | 2015-07-16 | Linear regulated flow ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784824U true CN204784824U (en) | 2015-11-18 |
Family
ID=54524874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520515142.1U Active CN204784824U (en) | 2015-07-16 | 2015-07-16 | Linear regulated flow ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486490A (en) * | 2018-05-14 | 2019-11-22 | 讯凯国际股份有限公司 | Control valve |
-
2015
- 2015-07-16 CN CN201520515142.1U patent/CN204784824U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486490A (en) * | 2018-05-14 | 2019-11-22 | 讯凯国际股份有限公司 | Control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |