CN206514896U - A kind of control device of linearity test flow - Google Patents
A kind of control device of linearity test flow Download PDFInfo
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- CN206514896U CN206514896U CN201720244581.2U CN201720244581U CN206514896U CN 206514896 U CN206514896 U CN 206514896U CN 201720244581 U CN201720244581 U CN 201720244581U CN 206514896 U CN206514896 U CN 206514896U
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- secondary channels
- sprue
- control device
- branch road
- thread cavity
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Abstract
The utility model is related to flow controller technical field, discloses in a kind of control device of linearity test flow, including channel body, the channel body and is provided with sprue, it is characterised in that：The channel body is additionally provided with the secondary channels that are used to detect parallel with sprue, one end of the sprue is provided with the first thread cavity, the other end of the sprue is provided with the second thread cavity, first thread cavity is provided with the first branch road, and first branch road is communicated with secondary channels input；The detection environment of this control device secondary channels is more stablized relative to sprue, so that the parameter of testing agency's detection fluid is more accurate, make the numerical precision of input higher, be conducive to carrying out linearity test and control, also achieve detection mode of the fluid without main fluid.
Description
Technical field
The utility model is related to flow controller technical field, more particularly to a kind of control device of linearity test flow.
Background technology
Flow controller refers to the precision equipment that flowing metering is carried out for liquid, gas etc., therefore, flow controller pair
Seem suitable important for modern industrial equipment, existing flow controller is generally required to flow when controlling flow
Detected, and conventional detection means is：One aperture is set in the fluid passage, flow sensor is loaded in aperture,
And flow sensor is extended in fluid passage, this detection method when actually detected, flow number detection tend not to be in
It is now Linear Control, its reason is that all fluids are passed through from fluid passage, and the cross section of fluid passage is larger,
There is such as channel design, detection hole machined, the influence of channel shape factor toward contact, there is the detection numerical value that correspondence is exported
Deviation.In view of this, inventor has made improvement to this.
Utility model content
The purpose of this utility model is that there is provided a kind of control of linearity test flow dress in view of the shortcomings of the prior art
Put, this control device can improve the precision of flow detection.
To achieve the above object, a kind of control device of linearity test flow of the present utility model, including channel body, institute
State and sprue be provided with channel body, the channel body is additionally provided with the secondary channels that are used to detect parallel with sprue,
One end of the sprue is provided with the first thread cavity, and the other end of the sprue is provided with the second thread cavity, described first
Thread cavity is provided with the first branch road, and first branch road is communicated with secondary channels input, and second thread cavity is provided with
Second branch road, second branch road is communicated with the output end of secondary channels, and the channel body, which is additionally provided with, stretches into secondary channels
Testing agency, first thread cavity is connected with input tube head, and second thread cavity is connected with output tube head.
Further, the input tube head includes connector, and the connector has an input pipe, and the tube head is provided with and the
The external screw thread of one thread cavity connection, the external screw thread is additionally provided with the tap hole separated for the fluid in input pipe.
It is preferred that, first branch road is vertical with secondary channels, which to be communicated, the second branch road is vertical with secondary channels communicates.
Further, the channel body is provided with the recess for housing testing agency, and the recess is provided with fixation
Screw and the mounting hole inserted for testing agency.
More excellent, the recess is circle, and the testing agency includes annular seating and is arranged at the sensor of annular seating, institute
State sensor and pass through mounting hole to secondary channels.
It is furthermore preferred that the recess is provided with two.
The beneficial effects of the utility model：A kind of control device of linearity test flow, including channel body, the passage
Sprue is provided with body, the channel body is additionally provided with the secondary channels that are used to detect parallel with sprue, this control
Device need not be stretched into sprue due to being provided with secondary channels, testing agency, and fluid enters the first branch road from input tube head,
Resynchronisation enters in secondary channels, is detected by testing agency, because the section of secondary channels is far less than the cross section of sprue,
So, the detection environment of secondary channels is more stablized relative to sprue, so that the parameter of testing agency's detection fluid is more accurate
Really, make the numerical precision of input higher, be conducive to carrying out linearity test and control, also achieve detection of the fluid without main fluid
Mode.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structural decomposition diagram of the present utility model.
Fig. 3 is cross section structure diagram of the present utility model.
Reference：
Channel body -- 31, recess -- 311, fixing threaded hole -- 312, mounting hole -- 313, sprue -- 32, the first screw thread
Chamber -- 321, the second thread cavity -- 322, the first branch road -- 323, the second branch road -- 324, secondary channels -- 33, testing agency --
34, annular seating -- 341, sensor -- 342, input tube head -- 35, connector -- 351, input pipe -- 352, tap hole -- 353,
Export tube head -- 36.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 1 to Fig. 3, a kind of control device of linearity test flow, including channel body 31, the channel body 31
Sprue 32 is inside provided with, the channel body 31 is additionally provided with the secondary channels 33 that are used to detect parallel with sprue 32, institute
The one end for stating sprue 32 is provided with the first thread cavity 321, and the other end of the sprue 32 is provided with the second thread cavity 322,
First thread cavity 321 is provided with the first branch road 323, and first branch road 323 is communicated with the input of secondary channels 33, institute
State the second thread cavity 322 and be provided with the second branch road 324, second branch road 324 is communicated with the output end of secondary channels 33, institute
State channel body 31 and be additionally provided with the testing agency 34 for stretching into secondary channels 33, first thread cavity 321 is connected with input pipe 352
First 35, second thread cavity 322 is connected with output tube head 36；This control device is due to being provided with secondary channels 33, testing agency
34 need not stretch into sprue 32, and fluid enters the first branch road 323 from input pipe 352 first 35, and resynchronisation enters secondary channels
In 33, detected by testing agency 34, because the section of secondary channels 33 is far less than the cross section of sprue 32, according to reality
The cross-sectional area ratio of test, sprue 32 and secondary channels 33 is 1：0.2~0.35, when sprue 32 and the horizontal stroke of secondary channels 33
Area of section ratio is 1：When 0.15, the numerical value that testing agency 34 obtains is larger for error, and its reason is less secondary channels
33 influence fluids pass through property；And when the cross-sectional area ratio of sprue 32 and secondary channels 33 is 1：When 0.4, testing agency 34
The numerical value ripple of acquirement moves larger, belongs to nonlinear object, is unfavorable for controlling to adjust；It is transversal when sprue 32 and secondary channels 33
Face area ratio is 1：When 0.2, stable numerical value detection can be obtained；When sprue 32 and the cross-sectional area ratio of secondary channels 33
It is worth for 1：When 0.35, stable numerical value detection can also be obtained；Accordingly, with respect to the existing detection stream directly in sprue 32
For body, the detection environment of secondary channels 33 is more stablized relative to sprue 32, so that the ginseng of fluid detects in testing agency 34
Number is more accurate, makes the numerical precision of input higher, is conducive to carrying out linearity test and control, realizes fluid without main fluid
Detection mode.
In the technical program, the input pipe 352 first 35 includes connector 351, and the connector 351 has input pipe
352, the tube head is provided with the external screw thread being connected with the first thread cavity 321, and the external screw thread is additionally provided with input pipe 352
The tap hole 353 that separates of fluid.Fluid enters from input pipe 352, and most fluid is directly entered in sprue 32, part
Fluid enters tap hole 353, then sequentially enters the first branch road 323 and secondary channels 33, finally from the second branch road 324 export into
Enter to export in tube head 36, whole detection fluid is not passed through in sprue 32, it is to avoid the environmental convection body of sprue 32 produces shadow
Ring.So, the magnetic valve set at output tube head 36 end can carry out corresponding flow control, control essence according to the data of detection
Du Genggao.
It is further to note that the structure of the output tube head 36 is identical with input pipe 352 first 35 in itself, it is its work(
Respectively as input and output fluid on energy, therefore, here, no longer illustrating.
In the technical program, first branch road 323 is vertical with secondary channels 33 to be communicated, the second branch road 324 with it is secondary
Runner 33 is vertically communicated.This structure vertically communicated, its main purpose is easy for processing, is directly to pass through three times in processing
Bore process, after drilling, the passage communicated in conjunction with corresponding plug one head and the tail of formation, you can the first branch road 323 of formation,
The branch road 324 of secondary channels 33 and second, can conveniently manufacture, save cost.
In order that the connection of testing agency 34 more facilitates and stably, the channel body 31 is provided with for accommodating detection
The recess 311 of mechanism 34, the recess 311 is provided with fixing threaded hole 312 and the mounting hole 313 inserted for testing agency 34.
In the technical program, the recess 311 is circle, and the testing agency 34 includes annular seating 341 and is arranged at
The sensor 342 of annular seating 341, the sensor 342 passes through mounting hole 313 to secondary channels 33.If for detecting flow velocity, together
It is that sensor 342 is flow sensor 342, if the pressure of detection fluid, sensor 342 is pressure sensor 342.Sensing
Device 342 with the formation of mounting hole 313 when mounted, it is necessary to seal, between preventing fluid between mounting hole 313 and sensor 342
Gap is escaped.
This control device can set two sensors 342 simultaneously, at this moment, and the recess 311 is provided with two.So as to shape
Into installation flow sensor 342 and pressure sensor 342.
Above content is only preferred embodiment of the present utility model, for one of ordinary skill in the art, according to this reality
With new thought, it will change in specific embodiments and applications, this specification content should not be construed as
To limitation of the present utility model.
Claims (6)
1. being provided with sprue in a kind of control device of linearity test flow, including channel body, the channel body, it is special
Levy and be：The channel body is additionally provided with the secondary channels that are used to detect parallel with sprue, and one end of the sprue is set
The first thread cavity is equipped with, the other end of the sprue is provided with the second thread cavity, and first thread cavity is provided with first point
By-path, first branch road is communicated with secondary channels input, and second thread cavity is provided with the second branch road, described second
Branch road is communicated with the output end of secondary channels, and the channel body is additionally provided with the testing agency for stretching into secondary channels, described first
Thread cavity is connected with input tube head, and second thread cavity is connected with output tube head.
2. a kind of control device of linearity test flow according to claim 1, it is characterised in that：The input tube head bag
Connector is included, the connector has input pipe, and the tube head is provided with the external screw thread being connected with the first thread cavity, the external screw thread
It is additionally provided with the tap hole separated for the fluid in input pipe.
3. a kind of control device of linearity test flow according to claim 2, it is characterised in that：First branch road
It is vertical with secondary channels communicate, the second branch road is vertical with secondary channels communicates.
4. a kind of control device of linearity test flow according to claim 1, it is characterised in that：The channel body is set
The recess for housing testing agency is equipped with, the recess is provided with fixing threaded hole and the mounting hole inserted for testing agency.
5. a kind of control device of linearity test flow according to claim 4, it is characterised in that：The recess is circle
Shape, the testing agency includes annular seating and is arranged at the sensor of annular seating, and the sensor passes through mounting hole to secondary channels.
6. a kind of control device of linearity test flow according to claim 5, it is characterised in that：The recess is provided with two
It is individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720244581.2U CN206514896U (en) | 2017-03-14 | 2017-03-14 | A kind of control device of linearity test flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720244581.2U CN206514896U (en) | 2017-03-14 | 2017-03-14 | A kind of control device of linearity test flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206514896U true CN206514896U (en) | 2017-09-22 |
Family
ID=59870459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720244581.2U Active CN206514896U (en) | 2017-03-14 | 2017-03-14 | A kind of control device of linearity test flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206514896U (en) |
-
2017
- 2017-03-14 CN CN201720244581.2U patent/CN206514896U/en active Active
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