CN205262535U - Open fluid commutator device - Google Patents
Open fluid commutator device Download PDFInfo
- Publication number
- CN205262535U CN205262535U CN201521095926.XU CN201521095926U CN205262535U CN 205262535 U CN205262535 U CN 205262535U CN 201521095926 U CN201521095926 U CN 201521095926U CN 205262535 U CN205262535 U CN 205262535U
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- nozzle
- drive unit
- open type
- utility
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Abstract
The utility model discloses an open fluid commutator device is among the mainly used flow rate standard facility. This flow commutator device includes shunt, nozzle, drive arrangement, be equipped with voltage regulator device and speed adjusting device in the drive arrangement gas circuit, voltage regulator device and speed adjusting device have the absolute position encoder through threaded connection respectively. The utility model discloses can detect different flows, the switching -over process is steady, has good repeatability and movement accuracy for in whole flow error minimums inside the country of examining and determine.
Description
Technical field
The utility model relates to flow detection device technical field, and particularly a kind of open type fluid reversing apparatus, is mainly used in flow standard device.
Background technology
Commutator is a critical component that affects metering performance in flow standard device, and its error is to cause the principal element of standard set-up error. At present, the commutator using in water flow standard apparatus is mainly open type commutator, the advantage of this type commutator maximum is that ducted fluid is not produced to disturbance, but still there is problem in this commutator in using: the flow rate of water flow skewness problem of (1) nozzle ejection, and this skewness will make to change to/swap out not in the same way commutator and increase changing to/swap out the device uncertainty causing in the time period; (2) change to/swap out not the pulse-triggered position problems of open type commutator in the same way, during due to different flow, the velocity flow profile of commutator nozzle is also different, if pulse-triggered position is distributed and adjusts and be placed in a fixed position according to a certain flow velocity, under this flow, commutator causes that ground uncertainty will be less, and under other flow, velocity flow profile and pulse-triggered position cause the uncertainty of commutator greatly to increase.
Utility model content
The purpose of this utility model is: for problems of the prior art, provide a kind of open type fluid reversing apparatus.
Concrete scheme of the present utility model is:
A kind of open type fluid reversing apparatus, is made up of current divider, nozzle, drive unit, and described nozzle is bolted on current divider; Described drive unit gas circuit is provided with stable-pressure device and arrangements for speed regulation.
Described drive unit is arranged on current divider by support, and the moving process of all moving components is all linear when ensureing work, improves kinematic accuracy.
Described nozzle is fixed by front sealing support set and rear sealing support set. The water jet of nozzle is one and extends vertically rectangular narrow spout, so that current are crossed a point water plate with the shortest time when commutation, reduces mushing error. The diameter of nozzle can adopt all size, to adapt to the detection of different flow.
On described drive unit, be also provided with absolute position encoder, this absolute position encoder and stable-pressure device, arrangements for speed regulation are bolted respectively, to assemble, clean and change.
Described absolute position encoder provides continuous trigger point, can accurately feed back reverser assembly particular location in the course of the work, to ensure commutator error minimum in all examining and determine Traffic Domain.
The relative prior art of the utility model has following effect:
1, the utility model provides one to improve to a greater extent test traffic and flow velocity accuracy.
2, commutator commutation process described in the utility model is steady, has good repeatability.
3, the utility model can be for the detection of different flow, and ensures error minimum in whole calibrating Traffic Domains.
4, the utility model has good kinematic accuracy in commutation process.
5, the utility model novel structure, simple to operate, easy for installation, good seal performance.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is gas control figure of the present utility model.
Detailed description of the invention
A kind of open type fluid reversing apparatus, is made up of current divider 1, nozzle 4, drive unit 5. Drive unit 5 is provided with absolute position encoder 6, drive unit gas circuit is provided with stable-pressure device 7 and arrangements for speed regulation 8, source of the gas enters stable-pressure device 7 through filtering, stable-pressure device 7 is stabilized on the atmospheric pressure value needing output pressure, arrangements for speed regulation 8 are arranged on drive unit 5 ports of export, by regulating arrangements for speed regulation 8 restriction sizes, regulate compressed-air actuated mass rate of emission, certain back pressure is provided to drive unit 5, what make that drive unit 5 moves is more steady simultaneously; In the time that drive unit 5 is worked, drive unit 5 push rods drive absolute position encoder 6 synchronously to rotate, and absolute position encoder 6 transmits to controlling computer the absolute position that nozzle rotates, and computer is controlled according to the location parameter of absolute position encoder 6. Drive unit 5 is arranged on current divider 1 by support, adopts gear-rack-driving. Nozzle 4 is arranged in front sealing support set 2 and rear sealing support set 3, and be bolted on current divider 1, the diameter of nozzle 4 can adopt all size, such as Φ l00, Φ 125, Φ 160, Φ 200 etc., and water jet is one and extends vertically rectangular narrow spout. Between absolute position encoder 6, stable-pressure device 7 and arrangements for speed regulation 8, adopt split-type structural, be bolted, absolute position encoder 6 provides continuous trigger point, under different flow, uses different trigger positions.
Claims (5)
1. an open type fluid reversing apparatus, is made up of current divider (1), nozzle (4), drive unit (5), and described nozzle (4) is bolted on current divider (1); It is characterized in that: described drive unit (5) gas circuit is provided with stable-pressure device (7) and arrangements for speed regulation (8).
2. a kind of open type fluid reversing apparatus according to claim 1, is characterized in that: described drive unit (5) is arranged on current divider (1) by support.
3. a kind of open type fluid reversing apparatus according to claim 1, is characterized in that: described nozzle (4) is fixing by front sealing support set (2) and rear sealing support set (3).
4. a kind of open type fluid reversing apparatus according to claim 1, is characterized in that: the water jet of nozzle is one and extends vertically rectangular narrow spout.
5. according to any open type fluid reversing apparatus described in claim 1 ~ 4, it is characterized in that: described drive unit (5) is provided with absolute position encoder (6), this absolute position encoder (6) is bolted respectively with stable-pressure device (7), arrangements for speed regulation (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095926.XU CN205262535U (en) | 2015-12-24 | 2015-12-24 | Open fluid commutator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095926.XU CN205262535U (en) | 2015-12-24 | 2015-12-24 | Open fluid commutator device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205262535U true CN205262535U (en) | 2016-05-25 |
Family
ID=56004057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521095926.XU Expired - Fee Related CN205262535U (en) | 2015-12-24 | 2015-12-24 | Open fluid commutator device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205262535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421607A (en) * | 2016-06-07 | 2017-12-01 | 西尼尔(南京)过程控制有限公司 | Fluid flow demarcates reversing arrangement |
| CN111707334A (en) * | 2020-05-15 | 2020-09-25 | 浙江水利水电学院 | Rotary open type equidirectional commutator in liquid flow standard device and method thereof |
-
2015
- 2015-12-24 CN CN201521095926.XU patent/CN205262535U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421607A (en) * | 2016-06-07 | 2017-12-01 | 西尼尔(南京)过程控制有限公司 | Fluid flow demarcates reversing arrangement |
| CN111707334A (en) * | 2020-05-15 | 2020-09-25 | 浙江水利水电学院 | Rotary open type equidirectional commutator in liquid flow standard device and method thereof |
| CN111707334B (en) * | 2020-05-15 | 2022-12-06 | 浙江水利水电学院 | Rotary open type equidirectional commutator in liquid flow standard device and method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20171224 |