CN204436676U - A kind of feedback arrangement of impulse turbine of built-in DC jet tube - Google Patents
A kind of feedback arrangement of impulse turbine of built-in DC jet tube Download PDFInfo
- Publication number
- CN204436676U CN204436676U CN201420804320.8U CN201420804320U CN204436676U CN 204436676 U CN204436676 U CN 204436676U CN 201420804320 U CN201420804320 U CN 201420804320U CN 204436676 U CN204436676 U CN 204436676U
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- China
- Prior art keywords
- feedback
- rod
- link bar
- impulse turbine
- arrangement
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a kind of feedback arrangement of impulse turbine of built-in DC jet tube, this feedback arrangement comprises jet pipe and needle stem, described water turbine also comprises feedback link bar and the feedback rod that can move in the horizontal direction relative to jet pipe, one connecting end of described feedback link bar is connected with needle stem, and described feedback rod is connected with another connecting end of feedback link bar and extends outside described jet pipe and to be connected with linear displacement transducer.The feedback arrangement of the impulse turbine of the built-in DC jet tube of the utility model, install, operation maintenance is very convenient, and the feedback signal of nozzle needle displacement is accurate, the nozzle needle displacement detector that can solve the impulse turbine of built-in DC jet tube in prior art easily damages and the inaccurate technical problem of displacement signal feedback.
Description
Technical field
The utility model relates to a kind of feedback arrangement of impulse turbine of built-in DC jet tube, and water turbine manufactures field.
Background technique
In the use of the impulse turbine of built-in DC jet tube, need the displacement of monitoring nozzle needle in jet pipe, by the control to nozzle needle displacement, thus regulate the jet diameter of nozzle.In prior art, nozzle needle Displacement Feedback device for this kind of water turbine generally has two kinds of mounting structures, a kind of structure is loaded in spray pipe by displacement transducer, but, when infiltration appears in the installation cavity of installation position displacement sensor, very worthy displacement transducer can be damaged, and when needing to change this displacement transducer after damaging, jet pipe must be taken apart and could change, cause safeguarding inconvenience.Another kind of structure is led to outside spray pipe by the action of feedback cone motional feedback bar, then displacement transducer is loaded on feedback rod, realizes the displacement detecting to nozzle needle.But more more than the actual displacement scale smaller of needle stem by the displacement amount of feedback cone, feedback inferior quality.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of feedback arrangement of impulse turbine of built-in DC jet tube, the nozzle needle Displacement Feedback convenience for device maintenance of this water turbine, and feedback signal is accurate.
The technical solution of the utility model is: a kind of feedback arrangement of impulse turbine of built-in DC jet tube, comprise jet pipe and needle stem, described water turbine also comprises feedback link bar and the feedback rod that can move in the horizontal direction relative to jet pipe, one connecting end of described feedback link bar is connected with needle stem, and described feedback rod is connected with another connecting end of feedback link bar and extends water turbine outside and be connected with linear displacement transducer.
The utility model is by arranging the feedback rod and feedback link bar that can move in the horizontal direction relative to jet pipe, by feedback link bar, the displacement of spray boom pin is conducted to feedback rod, by being connected to the external sensor on feedback rod, the misalignment of needle stem accurately can be measured.
Further, when jet pipe feedback fraction is placed in casing, a guard tube can be added between casing inner wall and jet pipe, directly enter in the motion chamber of jet pipe feedback rod to avoid current.When jet pipe feedback fraction is placed in casing foreign affairs, just do not need to do water-proofing treating.
As a kind of preferred implementation of the present utility model, the inside of described jet pipe is provided with cavity, on this cavity, the housing of corresponding water turbine is provided with opening, described cavity and described opening define feedback rod and to move chamber, and the tie point of described feedback rod and feedback link bar is arranged in described feedback nyctinastic movement chamber.
As a kind of preferred implementation of the present utility model, described feedback link bar is parallel with needle stem.
As a kind of preferred implementation of the present utility model, described feedback rod is vertical with described feedback link bar.
Further, described sensor is the linear displacement transducer of boom guy type or pull-rod type, is arranged in the outside of casing.
The impulse turbine of the built-in DC jet tube of the utility model, installs, operation maintenance is very convenient.And the feedback signal of nozzle needle displacement is accurate, the nozzle needle displacement detector that can solve the impulse turbine of built-in DC jet tube in prior art easily damages and the inaccurate technical problem of displacement signal feedback.
Accompanying drawing explanation
Fig. 1 be the impulse turbine of the built-in DC jet tube of the utility model feedback arrangement schematic diagram.
Embodiment
From concisely, the present embodiment highlights the utility model part different from the impulse turbine feedback arrangement of DC jet tube built-in in prior art.Please refer to Fig. 1, Fig. 1 is the feedback arrangement schematic diagram of the impulse turbine of the built-in DC jet tube of the utility model.
The feedback arrangement of the impulse turbine of built-in DC jet tube described in the utility model, comprises jet pipe 6, needle stem 1, feedback link bar 2 and feedback rod 5.Described needle stem 1 and feedback link bar 2 are all arranged at the inside of described jet pipe 6.One connecting end of described feedback link bar 2 is connected with needle stem 1, and described feedback rod 5 is connected with another connecting end of feedback link bar 2 and extends the outside of the housing of described water turbine.The body of rod that external sensor extends water turbine outside with connecting rod 2 is connected.Adopt structure described in the utility model, described external sensor can adopt the displacement transducer of bracing wire or pull-rod type.Relative to traditional magnetostrictive displacement sensor, the price of the displacement transducer of described bracing wire or pull-rod type is more cheap, reaches cost-saving object.
Improve as one of the present utility model, the inwall stating jet pipe is provided with protruding structure 3, described feedback link bar 2 is connected with feedback rod 5 through this protruding structure 3.
The inside of described jet pipe 6 is provided with cavity, on this cavity, the housing of corresponding water turbine is provided with opening, described cavity and described opening define feedback rod and to move chamber 4, and this feedback rod motion chamber 4 is preferably disposed on the afterbody of jet pipe 6, as the space of feedback rod 4.Described feedback rod 5 be arranged at described feedback rod with the tie point of feedback link bar 2 and move within chamber 4.
As the preferred implementation of the present embodiment, described feedback link bar 2 is parallel with needle stem 1, and described feedback rod 5 is vertical with described feedback link bar 2.
When monitoring the displacement of nozzle needle in jet pipe, by being connected to the linear displacement transducer on the exposed connecting rod divided in water turbine outside, during needle stem 1 displacement, by the transmission of feedback link bar 2, drive the displacement of described feedback rod 5.User can learn the misalignment of water turbine nozzle needle by the linear displacement transducer be connected with feedback rod 5, by the control to nozzle needle displacement, thus regulates the jet diameter of nozzle.
The feedback arrangement of the impulse turbine of the built-in DC jet tube of the utility model, installs, operation maintenance is very convenient.And the feedback signal of nozzle needle displacement is accurate, the nozzle needle displacement detector that can solve the impulse turbine of built-in DC jet tube in prior art easily damages and the inaccurate technical problem of displacement signal feedback.
Claims (6)
1. the feedback arrangement of the impulse turbine of a built-in DC jet tube, comprise sensor, jet pipe, feedback rod and needle stem, it is characterized in that, described water turbine also comprises feedback link bar and the feedback rod that can move in the horizontal direction relative to jet pipe, one connecting end of described feedback link bar is connected with needle stem, described feedback rod is connected with another connecting end of feedback link bar and extends water turbine outside, and described feedback rod extends water turbine outside and is connected with linear displacement transducer.
2. the feedback arrangement of impulse turbine as claimed in claim 1, it is characterized in that, described nozzle wall is provided with needle stem, and described feedback link bar is connected with feedback rod through this needle stem.
3. the feedback arrangement of impulse turbine as claimed in claim 2, it is characterized in that, the guide rib intralamellar part of described jet pipe is provided with cavity, on this cavity, the housing of corresponding water turbine is provided with opening, described cavity and described opening define feedback rod and to move chamber, and the tie point of described feedback rod and feedback link bar is arranged at described feedback rod and moves in chamber.
4. the feedback arrangement of impulse turbine as claimed in claim 1, it is characterized in that, described feedback link bar is parallel with needle stem.
5. the feedback arrangement of impulse turbine as claimed in claim 1, the feedback arrangement that it is characterized in that, described feedback rod is vertical with described feedback link bar.
6. the feedback arrangement of impulse turbine as claimed in claim 1, it is characterized in that, described sensor is the linear displacement transducer of boom guy type or pull-rod type, is arranged in the outside of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804320.8U CN204436676U (en) | 2014-12-18 | 2014-12-18 | A kind of feedback arrangement of impulse turbine of built-in DC jet tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804320.8U CN204436676U (en) | 2014-12-18 | 2014-12-18 | A kind of feedback arrangement of impulse turbine of built-in DC jet tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436676U true CN204436676U (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420804320.8U Expired - Fee Related CN204436676U (en) | 2014-12-18 | 2014-12-18 | A kind of feedback arrangement of impulse turbine of built-in DC jet tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462172A (en) * | 2017-09-19 | 2017-12-12 | 徐工集团工程机械有限公司 | Nozzle opening degree detection means, big gun head and fire water monitor |
-
2014
- 2014-12-18 CN CN201420804320.8U patent/CN204436676U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462172A (en) * | 2017-09-19 | 2017-12-12 | 徐工集团工程机械有限公司 | Nozzle opening degree detection means, big gun head and fire water monitor |
| CN107462172B (en) * | 2017-09-19 | 2024-02-02 | 江苏徐工工程机械研究院有限公司 | A nozzle opening degree detecting device gun head and fire water gun |
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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: 20150701 Termination date: 20211218 |