CN113153726A - Speed measuring device for water feeding pump of gas turbine - Google Patents
Speed measuring device for water feeding pump of gas turbine Download PDFInfo
- Publication number
- CN113153726A CN113153726A CN202110507677.4A CN202110507677A CN113153726A CN 113153726 A CN113153726 A CN 113153726A CN 202110507677 A CN202110507677 A CN 202110507677A CN 113153726 A CN113153726 A CN 113153726A
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- China
- Prior art keywords
- wind
- speed measuring
- measuring device
- gas turbine
- feeding pump
- Prior art date
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/14—Safety means against, or active at, failure of coolant-pumps drives, e.g. shutting engine down; Means for indicating functioning of coolant pumps
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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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a speed measuring device of a fuel machine feed pump, which comprises a gear disc and a sensor, wherein the gear disc is provided with at least two wind-blowing modules which are uniformly arranged in an annular array; the invention can improve the use environment of the speed measuring device under the condition of not increasing larger-volume parts, prolong the service life of the speed measuring device and optimize working condition parameters; the wind-starting module is arranged on the end face of the gear disc, so that a good improvement effect can be achieved, and the wind-starting module can be used as an integrated piece of the gear disc, and is ingenious in conception, novel in structure, good in effect and low in cost.
Description
Technical Field
The invention relates to the technical field of speed measuring devices of combustion engine feed pumps, in particular to a speed measuring device of a combustion engine feed pump.
Background
At present, in a high-pressure feed pump rotating speed measuring system matched with a domestic Siemens 9F gas turbine, 1 speed measuring probe is axially arranged, the number of teeth is 3, a spoon pipe actuator frequently fails in actual use, a feed pump rotating speed signal jumps when the spoon pipe actuator fails, an automatic fault exits, the fault disappears quickly, the rotating speed signal recovers, and great potential safety hazards are caused to the operation of a unit; the reason of frequent failure is as follows: the speed measuring probe designed by the original manufacturer is axially installed, the installation and maintenance are generally 2-2.5mm, and the axial vibration quantity reaches 2-3mm when the feed pump is started or stopped, so that the gap of the speed measuring probe is reduced, even the speed measuring probe is worn, a speed measuring signal jumps, and abnormal faults of an automatic system of a spoon pipe of the high-pressure feed pump are caused;
the working environment of the water supply pump of the gas turbine is moist, a relatively high humidity environment exists, meanwhile, the temperature is relatively high, fault statistics in the existing equipment maintenance finds that after the equipment runs for a relatively long time, due to the fact that conditions such as ventilation and the like are not high, a high-temperature high-humidity environment is added, the gear disc is seriously corroded, corrosion damage influences are caused to used speed measuring devices such as mechanical type and electromagnetic type, the speed measuring devices are arranged in a sealing mode, the speed measuring devices are not easy to repair and maintain, the internal environment is not easy to observe, the maintenance is inconvenient, the internal state is difficult to master in daily maintenance under the fault-free condition, once a fault which cannot be repaired or restarted occurs, the loss which cannot be repaired is caused, although a plurality of sensors are arranged to be mutually standby, the corrosion damage of the high-temperature high-humidity environment cannot be resisted; meanwhile, the speed measuring device is small, the volume and the space are limited, and auxiliary equipment is difficult to be added to improve the working environment, so that the speed measuring device for the water feeding pump of the combustion engine is needed.
Disclosure of Invention
The invention aims to provide a speed measuring device for a water feeding pump of a gas turbine, which has the characteristics of convenience and quickness in implementation, low cost, simple structure, self ventilation, positive and negative rotation heat dissipation and dehumidification.
In order to solve the problems, the invention provides a speed measuring device for a water feeding pump of a combustion engine, which comprises a gear disc and a sensor, wherein the gear disc is provided with at least two wind-raising modules which are uniformly arranged in an annular array.
The speed measuring device for the water feeding pump of the combustion engine, provided by the invention, also has the following technical characteristics:
furthermore, the wind-lifting module is an arc-shaped groove.
Further, the outer edge of the cross section of the wind-raising module is a smooth transition curve.
Furthermore, the wind-lifting modules are paired with positive and negative wind-collecting grooves which are arranged in a positive and negative direction.
Furthermore, folding baffles are arranged in the wind-blowing modules which are arranged in the forward direction and the reverse direction.
Furthermore, the wind-lifting module is a folding baffle, cushion blocks are arranged on two sides of the folding baffle, and an included angle between the folding baffle and the end face of the gear disc is larger than one degree when the gear disc rotates.
Furthermore, the number of tooth grooves on the gear disc is more than three.
Further, the number of the tooth grooves on the gear disc is 3, 12, 60, 120, 180 and 240.
Further, the gear plate and the sensor are arranged in a radial direction.
Furthermore, the wind-raising module comprises a first-order groove, a second-order groove and a third-order groove which are sequentially and adjacently arranged, and the width of the tooth groove is larger than 30 mm.
The invention has the following beneficial effects: the following points are provided by combining specific technical means:
1. the invention can improve the use environment of the speed measuring device under the condition of not increasing larger-volume parts, prolong the service life of the speed measuring device and optimize working condition parameters; the wind-starting module is arranged on the end face of the gear disc, so that a good improvement effect can be achieved, and the wind-starting module can be used as an integrated piece of the gear disc, and is ingenious in conception, novel in structure, good in effect and low in cost.
2. The wind-starting module is a groove on the gear disc, can be implemented in a machining mode, is simple in structure and good in effect, is suitable for application scenes with high unidirectional rotation ratio, meets the requirements of heat dissipation and ventilation in a unidirectional mode, is simple in structure, low in cost, good in effect and convenient and fast to implement, and guarantees high-speed rotation dynamic balance of the wind-starting module only by considering the machining precision of the wind-starting module on the gear disc.
3. The wind-starting module can be set into a positive and negative wind groove of a positive and negative combined structure, so that the requirement of bidirectional rotation can be met, the requirement of machining can be adopted for analogy, the structure is simple, the functions are complex and diverse, the effect is good, the cost is low, and the diverse requirements are met.
4. The wind-starting module can also consider using a folding baffle plate, the folding baffle plate is enabled to be tightly attached to the end face of the gear disc by utilizing the centrifugal force generated when the gear disc of the speed measuring device rotates, then the cushion blocks are arranged on the two sides of the folding baffle plate, so that an included angle is formed between the folding baffle plate and the end face of the gear disc, a certain angle is generated, the gear disc rotating at a high speed drives the folding baffle plate to form wind power, the requirements can be met no matter the gear disc rotates forwards or backwards, the conception is ingenious, the structure is simple, and the cost is low.
Drawings
FIG. 1 is a front view of a speed measuring device of a water-feeding pump of a combustion engine according to an embodiment of the invention;
FIG. 2 is a left side view of a speed measuring device of a water feed pump of a combustion engine according to an embodiment of the invention;
FIG. 3 is a top half-sectional view of a speed measuring device of a water feed pump of a combustion engine according to an embodiment of the present invention;
FIG. 4 is a rear view of a speed measuring device of a water-feeding pump of a combustion engine according to an embodiment of the invention;
FIG. 5 is a rear view of a speed measuring device of a water-feeding pump of a combustion engine according to an embodiment of the invention;
FIG. 6 is a rear view of a speed measuring device of a water-feeding pump of a combustion engine according to an embodiment of the invention;
FIG. 7 is a rear view of a speed measuring device of a water-feeding pump of a combustion engine according to an embodiment of the invention;
FIG. 8 is a rear view of a speed measuring device of a water-feeding pump of a combustion engine according to an embodiment of the invention;
FIG. 9 is a rear view of a speed measuring device of a water-feeding pump of a combustion engine according to an embodiment of the invention;
in the figure: 1. the wind-driven generator comprises a gear plate 2, a wind-lifting module 11, a tooth groove 21, a first-order groove 22, a second-order groove 23, a third-order groove 24, a single wind groove 25, a folding baffle 26 and a positive and negative wind groove.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The speed measuring device for the water feeding pump of the combustion engine comprises a gear disc 1 and a sensor, wherein the gear disc 1 is provided with wind-raising modules 2, and the wind-raising modules 2 are at least two and uniformly arranged in an annular array.
When the invention is implemented, the implementation key points are as follows:
1. the invention can improve the use environment of the speed measuring device under the condition of not increasing larger-volume parts, prolong the service life of the speed measuring device and optimize working condition parameters; rely on setting up wind module 2 on the terminal surface at toothed disc 1, can play good improvement effect, wind module 2 can regard as the integrative piece of toothed disc 1 moreover, think about ingenious, novel structure, effectual, with low costs.
2. The wind-starting module 2 is a groove on the gear disc 1, can be implemented in a machining mode, is simple in structure and good in effect, is suitable for application scenes with high unidirectional rotation ratio, meets the requirements on heat dissipation and ventilation in a unidirectional mode, is simple in structure, low in cost, good in effect and convenient and fast to implement, and guarantees high-speed rotation dynamic balance of the wind-starting module 2 only by considering the machining precision of the wind-starting module 2 on the gear disc 1.
3. The wind-starting module 2 can be set into a positive and negative wind groove 26 with a positive and negative combined structure, so that the requirement of bidirectional rotation can be met, the requirement of machining can be adopted for analogy, the structure is simple, the functions are complex and diverse, the effect is good, the cost is low, and the diverse requirements are met.
4. The wind-starting module 2 can also consider using the folding baffle 25, the folding baffle 25 is tightly attached to the end surface of the gear disc 1 by utilizing the centrifugal force when the gear disc 1 of the speed measuring device rotates, then the cushion blocks are arranged on the two sides of the folding baffle 25, so that an included angle is formed between the folding baffle 25 and the end surface of the gear disc 1, a certain angle is generated, the gear disc 1 rotating at a high speed drives the folding baffle 25 to form wind power, the requirements can be met no matter the gear disc 1 rotates forwards or backwards, the conception is ingenious, the structure is simple, and the cost is low.
In an embodiment of the application, the wind module 2 be the arc recess, simple structure, think about ingeniously, convenient implementation does not increase spare part, and changes the terminal surface of toothed disc 1 through the form that sets up processing recess, forms the air supply structure, and is with low costs, effectual, it is convenient to implement.
In an embodiment of the application, the outer edge of the cross section of the wind-raising module 2 is a smooth transition curve, so that the wind-raising module is convenient to process, simple in structure, low in cost and good in effect.
In an embodiment of the application, the wind-starting modules 2 are paired with the positive and negative wind grooves 26 which are arranged in the positive and negative directions, the conception is ingenious, and the paired structure overcomes the problem of positive and negative rotation.
In an embodiment of the application, the folding baffle 25 is arranged in the wind-starting module 2 which is arranged in the forward direction and the reverse direction, the influence of the other paired groove is reduced, the effect is good, the cost is low, and the wind-starting effect is good.
In an embodiment of the application, the wind module 2 be folding baffle 25, and folding baffle 25 both sides set up the cushion, make folding baffle 25 and 1 terminal surface contained angle of toothed disc 1 be greater than one degree when toothed disc 1 is rotatory, utilize folding baffle 25 directly to form the wind structure, with low costs, effectual, compatible just reversing, it is convenient to implement.
In an embodiment of the application, the number of the tooth grooves 11 on the gear plate 1 is more than three, so that the sensor test is facilitated, and the installation and use requirements of most sensors are met.
In one embodiment of the present application, the number of the tooth grooves 11 on the gear plate 1 is 3, 12, 60, 120, 180, 240, and the greater the number, the higher the precision.
In an embodiment of this application, toothed disc 1 and sensor for radial setting, overcome the error that the axial runout brought, traditional axial mounting means can't avoid the measuring error that the axial runout caused, causes signal fault easily, has great potential safety hazard, and this problem can perfectly be avoided to this structure, need not higher installation accuracy and can satisfy operation requirement.
In an embodiment of the application, the wind module 2 include adjacent first order groove 21, second order groove 22, the third order groove 23 that sets up in proper order, the width of tooth's socket 11 be greater than 30mm, can satisfy and overcome the measurement under the big circumstances of axial error, simple structure, with low costs, effectual.
In one embodiment of the present application, the data comparing the original equipment and the process using the invention is as follows:
| service life | Rate of accuracy | Failure rate | |
| Original structure mode | 6 months old | 97% | 15% |
| The invention is | 18 months old | 99% | 5% |
In conclusion, the technical effects of the invention can be seen.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a combustion engine feed pump speed sensor, includes toothed disc (1), sensor, its characterized in that: the wind-driven gearbox is characterized in that the gear disc (1) is provided with wind-driving modules (2), and the wind-driving modules (2) are at least arranged in two uniform annular arrays.
2. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 1, wherein: the wind-starting module (2) is an arc-shaped groove.
3. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 1, wherein: the outer edge of the cross section of the wind-starting module (2) is a smooth transition curve.
4. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 1, wherein: the wind-starting modules (2) are paired with positive and negative wind-making grooves (26) which are arranged in the positive and negative directions.
5. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 1, wherein: and folding baffles (25) are arranged in the wind-lifting modules (2) which are arranged in the forward direction and the reverse direction.
6. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 1, wherein: the wind-lifting module (2) is a folding baffle (25), cushion blocks are arranged on two sides of the folding baffle (25), and an included angle between the folding baffle (25) and the end face of the gear disc (1) is larger than one degree when the gear disc (1) rotates.
7. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 1, wherein: the number of the tooth grooves (11) on the gear disc (1) is more than three.
8. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 7, wherein: the number of the tooth grooves (11) on the gear disc (1) is 3, 12, 60, 120, 180 and 240.
9. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 1, wherein: the gear disc (1) and the sensor are arranged in the radial direction.
10. The speed measuring device for the water feeding pump of the gas turbine as claimed in claim 7, wherein: the wind-starting module (2) comprises a first-order groove (21), a second-order groove (22) and a third-order groove (23) which are sequentially and adjacently arranged, and the width of the tooth groove (11) is larger than 30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110507677.4A CN113153726B (en) | 2021-05-10 | 2021-05-10 | Speed measuring device for water supply pump of combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110507677.4A CN113153726B (en) | 2021-05-10 | 2021-05-10 | Speed measuring device for water supply pump of combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113153726A true CN113153726A (en) | 2021-07-23 |
| CN113153726B CN113153726B (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110507677.4A Active CN113153726B (en) | 2021-05-10 | 2021-05-10 | Speed measuring device for water supply pump of combustion engine |
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| Country | Link |
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| CN (1) | CN113153726B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090177433A1 (en) * | 2007-12-21 | 2009-07-09 | Weston Aerospace Limited | Method and apparatus for monitoring the rotational speed of shaft |
| CN201359609Y (en) * | 2008-12-31 | 2009-12-09 | 株洲南方燃气轮机成套制造安装有限公司 | Speed measuring device of gas turbine |
| CN204307319U (en) * | 2014-12-30 | 2015-05-06 | 哈尔滨师范大学 | Vibration is tested the speed and superfine length is fixedly turned the training of hip force at the core and quantize feedback device |
| CN204389520U (en) * | 2015-01-26 | 2015-06-10 | 上海凯泉泵业（集团）有限公司 | A kind of nuclear power main feed pump speed measuring device |
| CN104849487A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | To-be-detected shaft rotation speed detecting device and system |
| US20160363470A1 (en) * | 2015-06-09 | 2016-12-15 | Sunonwealth Electric Machine Industry Co., Ltd. | Airflow Sensor and Airflow Detecting Module |
| WO2017162942A1 (en) * | 2016-03-24 | 2017-09-28 | Renault S.A.S | Differential ring gear equipped with a target for measuring the rotation speed thereof and arrangement in a gearbox |
-
2021
- 2021-05-10 CN CN202110507677.4A patent/CN113153726B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090177433A1 (en) * | 2007-12-21 | 2009-07-09 | Weston Aerospace Limited | Method and apparatus for monitoring the rotational speed of shaft |
| CN201359609Y (en) * | 2008-12-31 | 2009-12-09 | 株洲南方燃气轮机成套制造安装有限公司 | Speed measuring device of gas turbine |
| CN104849487A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | To-be-detected shaft rotation speed detecting device and system |
| CN204307319U (en) * | 2014-12-30 | 2015-05-06 | 哈尔滨师范大学 | Vibration is tested the speed and superfine length is fixedly turned the training of hip force at the core and quantize feedback device |
| CN204389520U (en) * | 2015-01-26 | 2015-06-10 | 上海凯泉泵业（集团）有限公司 | A kind of nuclear power main feed pump speed measuring device |
| US20160363470A1 (en) * | 2015-06-09 | 2016-12-15 | Sunonwealth Electric Machine Industry Co., Ltd. | Airflow Sensor and Airflow Detecting Module |
| WO2017162942A1 (en) * | 2016-03-24 | 2017-09-28 | Renault S.A.S | Differential ring gear equipped with a target for measuring the rotation speed thereof and arrangement in a gearbox |
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| Publication number | Publication date |
|---|---|
| CN113153726B (en) | 2023-07-25 |
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