CN208793663U - A kind of percentage characteristic curve fine adjustment type control valve for small flows - Google Patents
A kind of percentage characteristic curve fine adjustment type control valve for small flows Download PDFInfo
- Publication number
- CN208793663U CN208793663U CN201821333738.XU CN201821333738U CN208793663U CN 208793663 U CN208793663 U CN 208793663U CN 201821333738 U CN201821333738 U CN 201821333738U CN 208793663 U CN208793663 U CN 208793663U
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- vertical length
- diameter
- valve
- control valve
- characteristic curve
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- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of percentage characteristic curve fine adjustment type control valve for small flows, including actuator (1), actuator (1) is connected by the interior spool (2) set with valve seat (3), and spool (2) is provided with raised (9)；Raised (9) are provided with adjustment portion (92), and are marked with valve line (91)；Adjustment portion (92) and valve line (91) are connected directly and form one；Adjustment portion is uniformly provided with several graduation marks on (92)；The vertical length Y is distance of the graduation mark to valve line (91).The accurate adjusting of flow control valve can be thus achieved by adjusting the distance of graduation mark to valve line (91) in the utility model.
Description
Technical field
The utility model relates to a kind of percentage characteristic curve fine adjustment type control valve for small flows.
Background technique
Flow control valve also known as self-operated flow control valve, flow balance valve, static balancing valve.It is a kind of intuitive simplicity
Flow control set for adjusting.Application traffic regulating valve directly can set flow as needed in pipe network.Valve can be made in water
Under, flow deviation caused by the automatic residual head for eliminating pipeline and pressure oscillation, no matter how system pressure changes
Keep setting flow constant.These functions make pipe network flow adjust primary completion, the hydraulic misadjustment of effective solution pipe network.
In the accurate manufacture field of numerically-controlled machine tool, fine adjustment type control valve for small flows is used often to realize the mesh accurately processed
's.But traditional flow control valve often only has the function of adjusting flow.Some equipment are necessarily required in some pressure value
It could work, therefore to guarantee that the input pressure of the hydraulic oil of flow valve could be connected on some setting value.Traditional stream
Adjustable valve can cause load to cause irregular operating because of the variation that the variation of flow causes stress.For these reasons, existing
The accurate control for having the regulating valve in technology to can not achieve flow causes irrecoverable loss to enterprise.
Therefore those skilled in the art are dedicated to developing a kind of percentage characteristic curve fine adjustment type control valve for small flows, with solution
The technical issues of certainly flow control valve can not achieve accurate flow adjustment in the prior art.
Utility model content
In view of the above drawbacks of the prior art, technical problem to be solved in the utility model is in the prior art cannot
Realize accurate flow adjustment.
To achieve the above object, the utility model provides a kind of percentage characteristic curve fine adjustment type control valve for small flows,
Including actuator, actuator is connected by the interior spool set with valve seat, and spool is provided with protrusion；Protrusion is provided with adjustment portion, and
It is marked with valve line；Adjustment portion is connected with valve line and forms one；Several graduation marks are uniformly provided in adjustment portion；Protrusion is erected
The relationship of straight length and diameter is as follows:
When vertical length is 0 ㎜, diameter is 2.5 ㎜；
When vertical length is 2 ㎜, diameter is 2.486 ㎜；
When vertical length is 3 ㎜, diameter is 2.48 ㎜；
When vertical length is 4 ㎜, diameter is 2.472 ㎜；
When vertical length is 5 ㎜, diameter is 2.461 ㎜；
When vertical length is 6 ㎜, diameter is 2.445 ㎜；
When vertical length is 7 ㎜, diameter is 2.422 ㎜；
When vertical length is 8 ㎜, diameter is 2.389 ㎜；
When vertical length is 9 ㎜, diameter is 2.343 ㎜；
When vertical length is 10 ㎜, diameter is 2.276 ㎜；
Vertical length is distance of the graduation mark to valve line.
Preferably, valve line connects with discharge orifice when flow control valve is in close state.
Preferably, being provided with entrance and exit on valve seat, entrance is connected to first runner, and first runner passes through discharge orifice and the
The connection of two runners, second flow channel and outlet.
Preferably, entrance and outlet are arranged in spool two sides.
Preferably, valve line connects with discharge orifice when flow control valve is in close state.
The beneficial effects of the utility model are: the utility model uses such as the vertical length of lower convexity and the relationship of diameter:
When vertical length is 0 ㎜, diameter is 2.5 ㎜；
When vertical length is 2 ㎜, diameter is 2.486 ㎜；
When vertical length is 3 ㎜, diameter is 2.48 ㎜；
When vertical length is 4 ㎜, diameter is 2.472 ㎜；
When vertical length is 5 ㎜, diameter is 2.461 ㎜；
When vertical length is 6 ㎜, diameter is 2.445 ㎜；
When vertical length is 7 ㎜, diameter is 2.422 ㎜；
When vertical length is 8 ㎜, diameter is 2.389 ㎜；
When vertical length is 9 ㎜, diameter is 2.343 ㎜；
When vertical length is 10 ㎜, diameter is 2.276 ㎜；
Vertical length is distance of the graduation mark to valve line.
The utility model is different from the needle valve of other producers.The utility model using equal percentage characteristics curve,
The maximum feature of this curve is: the changes in flow rate very little of the flow control valve in 1%-50% stroke, is only under normal circumstances
There is the flow of common needle valve 18%.In front in 50% stroke range, finer adjusting is may be implemented in valve.And surplus
Under 50% to 100% stroke, the changes in flow rate of flow control valve valve is by 18% to 100%.At this point, involved by the utility model
The changes in flow rate of valve faster, can satisfy the needs of big flow adjusting.
Regulating valve equal percentage characteristics curve refers to that the relative travel of equal percentage characteristics and relative discharge do not form straight line pass
System, the variation of the caused flow of per stroke variation is directly proportional to the flow of this point on the every bit of stroke, changes in flow rate
Percentage be equal.It has an advantage in that being flow hour, changes in flow rate is small, and when flow is big, then changes in flow rate is big, also
It is the degree of regulation having the same in different opening.
Detailed description of the invention
Fig. 1 is the concrete structure schematic diagram of flow control valve involved by the utility model；
Fig. 2 is the concrete structure schematic diagram of the protrusion of flow control valve involved by the utility model.
Wherein, 1 actuator；2 be spool；3 be valve seat；4 be second flow channel；5 be outlet；6 be discharge orifice；7 be first runner；
8 be entrance；9 be protrusion；91 be valve line；92 be adjustment portion.
Specific embodiment
In order to make those skilled in the art more fully understand the technical scheme in the embodiment of the utility model, and make this reality
Can be more obvious and easy to understand with the above objects, features, and advantages of new embodiment, with reference to the accompanying drawings and examples to this reality
Be described further with novel, it should be noted that, in the description of the present invention, term " on ", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
State the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific mode is constructed and is operated, therefore should not be understood as limiting the present invention.Term " first ", " second ", "
Three " etc. are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
As shown in Figure 1 and Figure 2.In order to solve the above technical problems, the utility model provides a kind of percentage characteristic curve fine tuning
Formula control valve for small flows, including actuator 1, actuator 1 are connected by the interior spool 2 set with valve seat 3, and spool 2 is provided with protrusion
9；Protrusion 9 is provided with adjustment portion 92, and is marked with valve line 91；Adjustment portion 92 and valve line 91 are connected directly and form one；
Several graduation marks are uniformly provided in adjustment portion 92.The relationship of the vertical length Y and diameter D of protrusion 9 are as follows:
When vertical length Y is 0 ㎜, diameter D is 2.5 ㎜；
When vertical length Y is 2 ㎜, diameter D is 2.486 ㎜；
When vertical length Y is 3 ㎜, diameter D is 2.48 ㎜；
When vertical length Y is 4 ㎜, diameter D is 2.472 ㎜；
When vertical length Y is 5 ㎜, diameter D is 2.461 ㎜；
When vertical length Y is 6 ㎜, diameter D is 2.445 ㎜；
When vertical length Y is 7 ㎜, diameter D is 2.422 ㎜；
When vertical length Y is 8 ㎜, diameter D is 2.389 ㎜；
When vertical length Y is 9 ㎜, diameter D is 2.343 ㎜；
When vertical length Y is 10 ㎜, diameter D is 2.276 ㎜；
Vertical length Y is distance of the graduation mark to valve line 91.
Percentage characteristic curve fine adjustment type control valve for small flows involved by the utility model, by convex in adjusting spool 2
9 realize flow-adjustable.Medium flows into flow control valve involved by the utility model from entrance 8, by first runner
7 enter discharge orifice；Spool 2 can be inserted into or extract discharge orifice 6, whether circulation to control medium；It is realized by control and regulation portion 92
The size of flow-adjustable, especially the changes in flow rate very little in the flow control valve of 1%-50% stroke are under normal circumstances
The flow of only common needle valve 18%.In front in 50% stroke range, finer tune is may be implemented in flow control valve
Section.In remaining 50% to 100% stroke, the changes in flow rate of flow control valve valve is by 18% to 100%, to meet big flow tune
The needs of section.
When flow control valve is in close state, valve line 91 connects with discharge orifice 6, and actually valve line 91 is that this is practical
There is the concentric circles of a circle in novel involved flow control valve protrusion 7.Valve line 91 mainly seals, in the utility model
In also function to graduation mark line of reference effect, vertical length Y be the graduation mark to valve line 91 distance.
Entrance 8 and outlet 5 are arranged in 2 two sides of spool.
Spool 2 and the equal built-up welding Si Taili hard alloy of valve seat 3, so that spool 2 is more wear resistant.Under normal circumstances, because of spool 2
There are 2.5 ㎜, while having 12 ㎜ again, so when processing, it may appear that radial deformation.Using the spool after pile-up welding hard alloy
2 are conducive to process, and spool 2 is not in deformation, keep 2 curve of spool of processing more accurate.In addition, accurate using numerically-controlled machine tool
2 curve radian of spool is processed, to guarantee the adjustability of valve.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (4)
1. a kind of percentage characteristic curve fine adjustment type control valve for small flows, including actuator (1), it is characterised in that: the execution
Device (1) is connected by the interior spool (2) set with valve seat (3), and the spool (2) is provided with raised (9)；Protrusion (9) setting
There are adjustment portion (92), and is marked with valve line (91)；The adjustment portion (92) and valve line (91) are connected directly and form one；
Several graduation marks are uniformly provided on the adjustment portion (92)；The relationship of the vertical length Y and diameter D of the protrusion (9) are as follows:
When vertical length Y is 0 ㎜, diameter D is 2.5 ㎜；
When vertical length Y is 2 ㎜, diameter D is 2.486 ㎜；
When vertical length Y is 3 ㎜, diameter D is 2.48 ㎜；
When vertical length Y is 4 ㎜, diameter D is 2.472 ㎜；
When vertical length Y is 5 ㎜, diameter D is 2.461 ㎜；
When vertical length Y is 6 ㎜, diameter D is 2.445 ㎜；
When vertical length Y is 7 ㎜, diameter D is 2.422 ㎜；
When vertical length Y is 8 ㎜, diameter D is 2.389 ㎜；
When vertical length Y is 9 ㎜, diameter D is 2.343 ㎜；
When vertical length Y is 10 ㎜, diameter D is 2.276 ㎜；
The vertical length Y is distance of the graduation mark to valve line (91).
2. percentage characteristic curve fine adjustment type control valve for small flows as described in claim 1, it is characterized in that: in the flow tune
When section valve is in close state, the valve line (91) connects with discharge orifice (6).
3. percentage characteristic curve fine adjustment type control valve for small flows as described in claim 1, it is characterized in that: the valve seat (3)
On be provided with entrance (8) and outlet (5), the entrance (8) is connected to first runner (7), and the first runner (7) passes through discharge orifice
(6) it is connected to second flow channel (4), the second flow channel (4) is connected to outlet (5).
4. percentage characteristic curve fine adjustment type control valve for small flows as claimed in claim 3, it is characterized in that: the entrance (8)
It is arranged with outlet (5) in spool (2) two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333738.XU CN208793663U (en) | 2018-08-18 | 2018-08-18 | A kind of percentage characteristic curve fine adjustment type control valve for small flows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333738.XU CN208793663U (en) | 2018-08-18 | 2018-08-18 | A kind of percentage characteristic curve fine adjustment type control valve for small flows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208793663U true CN208793663U (en) | 2019-04-26 |
Family
ID=66205949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821333738.XU Expired - Fee Related CN208793663U (en) | 2018-08-18 | 2018-08-18 | A kind of percentage characteristic curve fine adjustment type control valve for small flows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208793663U (en) |
-
2018
- 2018-08-18 CN CN201821333738.XU patent/CN208793663U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190426 |