CN109519367A - Automobile assembly welding Iine abnormal performance diagnostic method - Google Patents
Automobile assembly welding Iine abnormal performance diagnostic method Download PDFInfo
- Publication number
- CN109519367A CN109519367A CN201811175856.7A CN201811175856A CN109519367A CN 109519367 A CN109519367 A CN 109519367A CN 201811175856 A CN201811175856 A CN 201811175856A CN 109519367 A CN109519367 A CN 109519367A
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- China
- Prior art keywords
- feed pump
- assembly welding
- automobile assembly
- iine
- turbine
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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.)
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to a kind of automobile assembly welding Iine abnormal performance diagnostic methods.When there is anomaly analysis reason in automobile assembly welding Iine performance, be feed pump turbine efficiency or steam feed pump efficiency decline or the two efficiency decline caused by, currently without more clear effectively diagnostic method.In the present invention, the performance decrease reason of automobile assembly welding Iine analyzing and diagnosing principle: is diagnosed by comparing the pitch aperture of the water flows of two steam feed pumps, feed pump turbine under identical automobile assembly welding Iine revolving speed；Analysis and diagnosis method: according to the result of analytical judgment in the maintenance process of next step, emphasis inspection is carried out for a certain steam feed pump or feed pump turbine, is repaired.Operation of the present invention is simple, can rapidly and accurately judge the reason of leading to automobile assembly welding Iine abnormal performance, provides direction for the anomaly analysis of automobile assembly welding Iine and maintenance, while laying a good foundation for automobile assembly welding Iine abnormal performance diagnostic analysis.
Description
Technical field
The present invention relates to a kind of automobile assembly welding Iine abnormal performance diagnostic methods.
Background technique
Automobile assembly welding Iine, which is connected with steam feed pump by feed pump turbine, to be formed, and steam feed pump is by feed pump
Steam Turbine Driven, control system adjusts the revolving speed of automobile assembly welding Iine by adjusting the throttle flow of feed pump turbine, to reach
To the purpose of control feed pump water flow, such as application No. is 201620360595.6 Chinese patents.Due to feed pump steamer
Machine and steam feed pump are the pump groups rotated coaxially, are water supply when there is anomaly analysis reason for automobile assembly welding Iine performance
Mercury vapour turbine or the decline of steam feed pump efficiency or the two efficiency decline, currently without more clear effectively diagnosis side
Method.Only by the abnormity diagnosis to automobile assembly welding Iine performance, specific conclusion is obtained, it could be in the maintenance plan of next step
It is middle that automobile assembly welding Iine is targetedly overhauled according to diagnostic result.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of reasonable steam-operating of design
Water supply pump group abnormal performance diagnostic method, can rapidly and accurately judge the reason of leading to automobile assembly welding Iine abnormal performance.
Technical solution used by the present invention solves the above problems is: a kind of automobile assembly welding Iine abnormal performance diagnosis side
Method, which is characterized in that the diagnostic method is as follows:
1, analyzing and diagnosing principle: every unit is commonly equipped with two automobile assembly welding Iines, feed pump turbine electrohydraulic control system
Throttle flow by adjusting feed pump turbine adjusts the revolving speed of automobile assembly welding Iine, to reach control feed pump water flow
Purpose.Under normal circumstances, two automobile assembly welding Iines reach essentially identical feed pump rate of discharge under same rotational speed, and
The pitch aperture (pitch aperture represents throttle flow) of two feed pump turbines is also essentially identical, this shows two steam feed pumps
The feed pump turbine and steam feed pump of group are run in the case where same performance.Due to the same revolution speed of the shaft power of feed pump
Cube it is directly proportional, that is to say, that no matter steam feed pump or feed pump turbine efficiency decline, the vapour under same rotational speed
The shaft power of dynamic water supply pump group will not change.In conclusion can be by being compared under identical automobile assembly welding Iine revolving speed
The water flow of two steam feed pumps, the pitch aperture of feed pump turbine are former come the performance decline for diagnosing automobile assembly welding Iine
Cause.
2, analysis and diagnosis method: the motorized recycling valve and centre for checking respectively for two automobile assembly welding Iines of confirmation first are taken out
The head tight No leakage of electrically operated gate, guarantees that the rate of discharge of two steam feed pumps can be compared in the case where system No leakage
Compared with；Secondly two automobile assembly welding Iines are compared, if a certain feed pump stream under identical automobile assembly welding Iine revolving speed
Measure it is relatively low more, then illustrate the relatively low feed pump of flow compared to another feed pump abnormal performance efficiency it is relatively low；In identical vapour
If a certain feed pump turbine pitch aperture (pitch aperture represents throttle flow) is bigger than normal under dynamic water supply pump group revolving speed, illustrate to adjust
Door aperture feed pump turbine bigger than normal is relatively low compared to another feed pump turbine abnormal performance efficiency.It, can be with since in this way
According to the result of analytical judgment in the maintenance process of next step, for a certain steam feed pump or feed pump turbine into
The inspection of row emphasis is repaired.
Compared with prior art, the present invention having the following advantages that and effect: it is easy to operate, it can rapidly and accurately judge to cause
The reason of automobile assembly welding Iine abnormal performance, provides direction for the anomaly analysis of unit and maintenance, while being steam feed pump
Group abnormal performance diagnostic analysis is laid a good foundation.
Specific embodiment
Below by embodiment, the present invention is described in further detail, following embodiment be explanation of the invention and
The invention is not limited to following embodiments.
Embodiment.
A kind of automobile assembly welding Iine abnormal performance diagnostic method, diagnostic method are as follows:
1, analyzing and diagnosing principle: every unit is commonly equipped with two automobile assembly welding Iines, feed pump turbine electrohydraulic control system
Throttle flow by adjusting feed pump turbine adjusts the revolving speed of automobile assembly welding Iine, to reach control feed pump water flow
Purpose.Under normal circumstances, two automobile assembly welding Iines reach essentially identical feed pump rate of discharge under same rotational speed, and
The pitch aperture (pitch aperture represents throttle flow) of two feed pump turbines is also essentially identical, this shows two steam feed pumps
The feed pump turbine and steam feed pump of group are run in the case where same performance.Due to the same revolution speed of the shaft power of feed pump
Cube it is directly proportional, that is to say, that no matter steam feed pump or feed pump turbine efficiency decline, the vapour under same rotational speed
The shaft power of dynamic water supply pump group will not change.In conclusion can be by being compared under identical automobile assembly welding Iine revolving speed
The water flow of two steam feed pumps, the pitch aperture of feed pump turbine are former come the performance decline for diagnosing automobile assembly welding Iine
Cause.
2, analysis and diagnosis method: the motorized recycling valve and centre for checking respectively for two automobile assembly welding Iines of confirmation first are taken out
The head tight No leakage of electrically operated gate, guarantees that the rate of discharge of two steam feed pumps can be compared in the case where system No leakage
Compared with；Secondly two automobile assembly welding Iines are compared, if a certain feed pump stream under identical automobile assembly welding Iine revolving speed
Measure it is relatively low more, then illustrate the relatively low feed pump of flow compared to another feed pump abnormal performance efficiency it is relatively low；In identical vapour
If a certain feed pump turbine pitch aperture (pitch aperture represents throttle flow) is bigger than normal under dynamic water supply pump group revolving speed, illustrate to adjust
Door aperture feed pump turbine bigger than normal is relatively low compared to another feed pump turbine abnormal performance efficiency.It, can be with since in this way
According to the result of analytical judgment in the maintenance process of next step, for a certain steam feed pump or feed pump turbine into
The inspection of row emphasis is repaired.
It is any to be familiar with although the present invention is disclosed as above with embodiment, its protection scope being not intended to limit the invention
The technical staff of this technology changes and retouches made without departing from the spirit and scope of the invention, should belong to this hair
Bright protection scope.
Claims (1)
1. a kind of automobile assembly welding Iine abnormal performance diagnostic method, which is characterized in that the diagnostic method is as follows:
(1) analyzing and diagnosing principle: every unit is equipped with two automobile assembly welding Iines, and feed pump turbine electrohydraulic control system passes through
The revolving speed for adjusting the throttle flow adjustment automobile assembly welding Iine of feed pump turbine, to reach the mesh of control feed pump water flow
's；Under normal circumstances, two automobile assembly welding Iines reach identical feed pump rate of discharge under same rotational speed, and two are given
The pitch aperture of water pump steam turbine is also essentially identical, this shows the feed pump turbine of two automobile assembly welding Iines and steam-operating water supply
Pump is run in the case where same performance；Since the shaft power of feed pump is directly proportional with the cube of revolution speed, that is to say, that nothing
Decline by steam feed pump or feed pump turbine efficiency, the shaft power of automobile assembly welding Iine will not occur under same rotational speed
Change；In conclusion passing through the water flow and feed pump turbine that compare two steam feed pumps under identical pump group revolving speed
Pitch aperture diagnose the performance decrease reason of automobile assembly welding Iine；
(2) analysis and diagnosis method: the motorized recycling valve and centre tap of two automobile assembly welding Iines of confirmation are checked respectively for first
The tight No leakage of electrically operated gate guarantees that the rate of discharge of two steam feed pumps can be compared in the case where system No leakage；
Secondly two automobile assembly welding Iines are compared, if a certain water supply pump discharge is relatively low under identical pump group revolving speed, are said
The relatively low feed pump of free flow amount is relatively low compared to another feed pump abnormal performance efficiency, if a certain under identical pump group revolving speed
Feed pump turbine pitch aperture is bigger than normal, then illustrates pitch aperture feed pump turbine bigger than normal compared to another feed pump steamer
Machine abnormal performance efficiency is relatively low；Since in this way according to the result of analytical judgment in the maintenance process of next step, for a certain
Steam feed pump or feed pump turbine carry out emphasis inspection, repair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175856.7A CN109519367A (en) | 2018-10-10 | 2018-10-10 | Automobile assembly welding Iine abnormal performance diagnostic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175856.7A CN109519367A (en) | 2018-10-10 | 2018-10-10 | Automobile assembly welding Iine abnormal performance diagnostic method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109519367A true CN109519367A (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811175856.7A Pending CN109519367A (en) | 2018-10-10 | 2018-10-10 | Automobile assembly welding Iine abnormal performance diagnostic method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087655A (en) * | 2010-10-18 | 2012-05-10 | Mitsubishi Heavy Ind Ltd | Device and method for measuring rotor behavior of turbo rotary machine, as well as turbo rotary machine |
| CN103147955A (en) * | 2013-03-04 | 2013-06-12 | 章礼道 | Water-feeding pump system driven by high-speed synchronous motor |
| CN103206268A (en) * | 2013-04-19 | 2013-07-17 | 国家电网公司 | Systematic modification method for steam consumption quantity of steam turbine of feed pump in performance tests for steam turbine |
| CN104847421A (en) * | 2015-06-02 | 2015-08-19 | 济南达能动力技术有限责任公司 | Experimental system and method of emergency steam-driven oil pump |
| CN205533044U (en) * | 2016-04-26 | 2016-08-31 | 中国神华能源股份有限公司 | Steam -operating water feed pump set and water feed pump set system thereof |
-
2018
- 2018-10-10 CN CN201811175856.7A patent/CN109519367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087655A (en) * | 2010-10-18 | 2012-05-10 | Mitsubishi Heavy Ind Ltd | Device and method for measuring rotor behavior of turbo rotary machine, as well as turbo rotary machine |
| CN103147955A (en) * | 2013-03-04 | 2013-06-12 | 章礼道 | Water-feeding pump system driven by high-speed synchronous motor |
| CN103206268A (en) * | 2013-04-19 | 2013-07-17 | 国家电网公司 | Systematic modification method for steam consumption quantity of steam turbine of feed pump in performance tests for steam turbine |
| CN104847421A (en) * | 2015-06-02 | 2015-08-19 | 济南达能动力技术有限责任公司 | Experimental system and method of emergency steam-driven oil pump |
| CN205533044U (en) * | 2016-04-26 | 2016-08-31 | 中国神华能源股份有限公司 | Steam -operating water feed pump set and water feed pump set system thereof |
Non-Patent Citations (4)
| Title |
|---|
| 宋连龙: "《液压设备使用与维护》", 31 January 2015 * |
| 广东电网公司电力科学研究院: "《汽轮机设备及系统》", 31 January 2011 * |
| 望亭发电厂: "《汽轮机分册》", 30 September 2011 * |
| 黄志坚 袁周: "《工业泵节能实用技术》", 31 July 2013 * |
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Application publication date: 20190326 |