CN204024729U - A kind of Novel backwashing bypath system - Google Patents
A kind of Novel backwashing bypath system Download PDFInfo
- Publication number
- CN204024729U CN204024729U CN201420198765.6U CN201420198765U CN204024729U CN 204024729 U CN204024729 U CN 204024729U CN 201420198765 U CN201420198765 U CN 201420198765U CN 204024729 U CN204024729 U CN 204024729U
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- Prior art keywords
- filter screen
- counterflushing
- sieves
- grades
- automatically
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- 238000011001 backwashing Methods 0.000 title claims abstract description 13
- 239000002828 fuel tank Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a kind of Novel backwashing bypath system, comprise automatically counterflushing sieves, secondary filter screen unit, three grades of filter screen units, regulator, the intake line of described automatically counterflushing sieves, output pipe connect respectively oil cooler pipeline, secondary filter screen unit successively, be positioned at secondary filter screen unit output terminal and connect three grades of filter screen units, the output terminal of described three grades of filter screen units connects regulator; An automatically counterflushing sieves bypass of described automatically counterflushing sieves parallel connection outside access, meanwhile, is positioned at automatically counterflushing sieves output terminal and accesses another filter screen outlet separating valve.The utility model beneficial effect is: when oil suction oil is poor while causing that reverse flushing filter screen blocks, system can be switched to bypass operation, can effectively avoid must stop quotation on the exchange car, oil pump of steam turbine to clean reverse flushing filter screen, can guarantee the equipment safety operations such as turbine rotor, bearing.
Description
Technical field
The utility model relates to steam turbine set hydraulics, relates in particular to a kind of Novel backwashing bypath system.
Background technique
With work steam turbine generator pool-size, constantly increase, the increase of rotor weight, single lubricant oil can not meet the needs of continuous jiggering, for reducing rotor moment of rotation and the wearing and tearing of avoiding bearing shell, large turbo-type generator group has generally increased macro-axis jacking system, when carrying out continuous jiggering, open jacking oil system, can make rotor stability rotate.Its main feature is: adopt import variable plunger pump, redundant configuration, adapts to changes in flow rate, reduces pressure surge; Set up duplex oil purifier piece, improve the turbidity test that enter pump and bearing oil; Adopt the key elements such as inlet throttle valve, spill valve to improve system reliability; Adopt integrated morphology to make system adapter facilitate attractive in appearance.But, existing 300MW steam turbine set jacking oil system only has an automatically counterflushing sieves, when oil suction oil poor, and while surpassing its automatic backwash ability, reverse flushing filter screen will block, oil pump is by the phenomenon that occurs that gateway pressure is low, oil mass is little, and this will have a strong impact on oil pump safe operation; Like this, just must stop quotation on the exchange car and jacking(oil) pump, carry out labor cleaning to reverse flushing filter screen, threatens the safe operation of unit, even occurs the accidents such as rotor bow, tile kilning.Therefore,, for above aspect, need to reasonably improve prior art.
Model utility content
For above defect, the utility model provides a kind of and can be in time filter screen is cleaned, guaranteed unit safety, is conducive to the Novel backwashing bypath system of stable operation, to solve many deficiencies of prior art.
For achieving the above object, the utility model is by the following technical solutions:
A kind of Novel backwashing bypath system, comprise automatically counterflushing sieves, secondary filter screen unit, three grades of filter screen units, regulator, the intake line of described automatically counterflushing sieves, output pipe connects respectively oil cooler pipeline successively, secondary filter screen unit, be positioned at secondary filter screen unit output terminal and connect three grades of filter screen units, three grades of filter screen units wherein by two three grades of filter screens, formed and the intake line of each three grades of filter screen on access a jacking(oil) pump, the output terminal of described three grades of filter screen units connects regulator, described regulator is with four output pipes, each output pipe passes through respectively one-way valve successively, pressure regulator valve access bearing, correspondingly, automatically counterflushing sieves bypass with filter screen outlet separating valve of described automatically counterflushing sieves parallel connection outside access, meanwhile, is positioned at automatically counterflushing sieves output terminal and accesses another filter screen outlet separating valve.
Secondary filter screen unit is wherein composed in parallel by two filter screens, and the pipeline between three grades of filter screen units and regulator is connected to relief valve and accesses fuel tank again.
The beneficial effect of Novel backwashing bypath system described in the utility model is: by installing bypass additional in the existing jacking oil system automatically counterflushing sieves of 300MW steam turbine set outside, and install respective isolation valves door additional, when oil suction oil is poor while causing that reverse flushing filter screen blocks, system can be switched to bypass operation, can effectively avoid must stop quotation on the exchange car, oil pump of steam turbine to clean reverse flushing filter screen, can guarantee the equipment safety operations such as turbine rotor, bearing; After automatically counterflushing sieves cleans, can to reverse flushing filter screen, recover in time, guarantee oil product turbidity test.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the Novel backwashing bypath system connection diagram described in the utility model embodiment.
In figure:
1, automatically counterflushing sieves; 2, secondary filter screen unit; 3, three grades of filter screen units; 4, automatically counterflushing sieves bypass; 5, filter screen outlet separating valve.
Embodiment
As shown in Figure 1, Novel backwashing bypath system described in the utility model embodiment, comprise automatically counterflushing sieves 1, secondary filter screen unit 2, three grades of filter screen units 3, regulator, the intake line of described automatically counterflushing sieves 1, output pipe connects respectively oil cooler pipeline successively, secondary filter screen unit 2, be positioned at secondary filter screen unit 2 output terminals and connect three grades of filter screen units 3, secondary filter screen unit 2 is wherein composed in parallel by two filter screens, three grades of filter screen units 3 wherein by two three grades of filter screens, composed in parallel and the intake line of each three grades of filter screen on access a jacking(oil) pump, the output terminal connection regulator of described three grades of filter screen units 3 and the pipeline between three grades of filter screen units 3 and regulator are connected to relief valve and access fuel tank again, described regulator is with four output pipes, each output pipe passes through respectively one-way valve successively, pressure regulator valve access 3, 4, 5, No. 6 bearings,
Correspondingly, automatically counterflushing sieves bypass 4 with filter screen outlet separating valve 5 of described automatically counterflushing sieves 1 parallel connection outside access, meanwhile, is positioned at automatically counterflushing sieves 1 output terminal and accesses another filter screen outlet separating valve 5.
Novel backwashing bypath system described in above the utility model embodiment, applicable to 300MW unit jacking oil system, mainly by high pressure oil pump (model A10V0100DR-31-PPA12N00, flow 60L/min, rotating speed 1480r/min), anti-explosion motor (model: YB250-4/B35, rated power 55Kw), automatically counterflushing sieves, bitubular secondary net, three grades of filter screens of pump discharge, pressure switch, relief valve etc., formed; The oil suction of shaft-raising gear from oil cooler after (pressure 0.2MPa), oil suction is carried out coarse filtration through 32 μ m automatically counterflushing sieves, and then enter jacking(oil) pump entrance through the bitubular secondary filter screen of 25 μ m, and through pump, boosting to 16MPa, its pressure is controlled by relief valve; The pressure oil of oil pump output enters before each bearing, also will finally guarantee the turbidity test of jacking oil through three grades of filter screens of 10 μ m, pressure oil is after three grades of filter screens, through one-way valve, pressure regulator valve, enter integrated controll block again and be assigned to each corresponding bearing, realize apical axis object; Oil mass and the pressure that by adjusting the pressure regulator valve of integrated controll block, can control each bearing, make axle journal jack-up in the reasonable scope; Install the existing jacking oil system automatically counterflushing sieves of 300MW steam turbine set additional bypass, and install respective isolation valves door additional, when oil suction oil is poor while causing that reverse flushing filter screen blocks, system can be switched to bypass operation.
The above-mentioned description to embodiment is can understand and apply this case technology for the ease of those skilled in the art, person skilled in the art obviously can make various modifications to these examples easily, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, this case is not limited to above embodiment, and those skilled in the art is according to the announcement of this case, and the improvement of making for this case and modification all should be in the protection domains of this case.
Claims (3)
1. a Novel backwashing bypath system, comprises automatically counterflushing sieves (1), secondary filter screen unit (2), three grades of filter screen units (3), regulator, it is characterized in that:
The intake line of described automatically counterflushing sieves (1), output pipe connect respectively oil cooler pipeline, secondary filter screen unit (2) successively, be positioned at secondary filter screen unit (2) output terminal and connect three grades of filter screen units (3), three grades of filter screen units (3) wherein by two three grades of filter screens, formed and the intake line of each three grades of filter screen on access a jacking(oil) pump, the output terminal of described three grades of filter screen units (3) connects regulator, described regulator is with four output pipes, and each output pipe is successively respectively by one-way valve, pressure regulator valve access bearing; Correspondingly, automatically counterflushing sieves bypass (4) with filter screen outlet separating valve (5) of described automatically counterflushing sieves (1) parallel connection outside access, meanwhile, be positioned at automatically counterflushing sieves (1) output terminal and access another filter screen outlet separating valve (5).
2. Novel backwashing bypath system according to claim 1, is characterized in that: secondary filter screen unit (2) is wherein composed in parallel by two filter screens.
3. Novel backwashing bypath system according to claim 1, is characterized in that: be positioned at pipeline between three grades of filter screen units (3) and regulator and be connected to relief valve and access fuel tank again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198765.6U CN204024729U (en) | 2014-04-23 | 2014-04-23 | A kind of Novel backwashing bypath system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198765.6U CN204024729U (en) | 2014-04-23 | 2014-04-23 | A kind of Novel backwashing bypath system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204024729U true CN204024729U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420198765.6U Expired - Lifetime CN204024729U (en) | 2014-04-23 | 2014-04-23 | A kind of Novel backwashing bypath system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204024729U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246247A (en) * | 2016-09-29 | 2016-12-21 | 华北电力科学研究院有限责任公司 | A kind of thermal power plant's Turbo-generator Set lubricating oil system and on off control method thereof |
| CN107165683A (en) * | 2017-06-26 | 2017-09-15 | 北京首钢股份有限公司 | A kind of steam-turbine lubrication oil circulating system and method |
| CN108793372A (en) * | 2018-06-26 | 2018-11-13 | 深圳市玖品空气净化科技有限公司 | A kind of effluent purifying device of good purification |
| CN110496440A (en) * | 2019-09-20 | 2019-11-26 | 西安热工研究院有限公司 | A kind of plant feedwater train backlash cleaning device and method with ultrasonic cleaning structure |
| CN111412027A (en) * | 2020-03-23 | 2020-07-14 | 中国电力工程顾问集团华北电力设计院有限公司 | Lubricating oil supply system of independent direct current power supply system without emergency oil pump |
| CN111412028A (en) * | 2020-03-23 | 2020-07-14 | 中国电力工程顾问集团华北电力设计院有限公司 | Lubricating oil supply system sharing direct-current power supply system and not provided with emergency oil pump |
-
2014
- 2014-04-23 CN CN201420198765.6U patent/CN204024729U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246247A (en) * | 2016-09-29 | 2016-12-21 | 华北电力科学研究院有限责任公司 | A kind of thermal power plant's Turbo-generator Set lubricating oil system and on off control method thereof |
| CN107165683A (en) * | 2017-06-26 | 2017-09-15 | 北京首钢股份有限公司 | A kind of steam-turbine lubrication oil circulating system and method |
| CN107165683B (en) * | 2017-06-26 | 2020-10-23 | 北京首钢股份有限公司 | Turbine lubricating oil circulating system and method |
| CN108793372A (en) * | 2018-06-26 | 2018-11-13 | 深圳市玖品空气净化科技有限公司 | A kind of effluent purifying device of good purification |
| CN110496440A (en) * | 2019-09-20 | 2019-11-26 | 西安热工研究院有限公司 | A kind of plant feedwater train backlash cleaning device and method with ultrasonic cleaning structure |
| CN110496440B (en) * | 2019-09-20 | 2024-05-28 | 西安热工研究院有限公司 | Backwashing device and method for power station water supply system with ultrasonic cleaning structure |
| CN111412027A (en) * | 2020-03-23 | 2020-07-14 | 中国电力工程顾问集团华北电力设计院有限公司 | Lubricating oil supply system of independent direct current power supply system without emergency oil pump |
| CN111412028A (en) * | 2020-03-23 | 2020-07-14 | 中国电力工程顾问集团华北电力设计院有限公司 | Lubricating oil supply system sharing direct-current power supply system and not provided with emergency oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141217 |
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| CX01 | Expiry of patent term |