CN104033192A - Second or first rotation speed and jumping protective device for steam turbine - Google Patents
Second or first rotation speed and jumping protective device for steam turbine Download PDFInfo
- Publication number
- CN104033192A CN104033192A CN201410264711.XA CN201410264711A CN104033192A CN 104033192 A CN104033192 A CN 104033192A CN 201410264711 A CN201410264711 A CN 201410264711A CN 104033192 A CN104033192 A CN 104033192A
- Authority
- CN
- China
- Prior art keywords
- chaser
- dry contact
- rotation speed
- jumping
- contact
- 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.)
- Pending
Links
Landscapes
- Control Of Turbines (AREA)
Abstract
The invention discloses a second or first rotation speed and jumping protective device for a steam turbine, and relates to the field of steam turbines. The second or first rotation speed and jumping protective device aims to solve problems that two-out-of-three logics are adopted for an existing rotation speed protective device for a steam turbine, the existing rotation speed protective device is poor in reliability, only one rotation speed can be optimally displayed and whether each rotation speed fails or not cannot be visually judged. The second and first rotation speed and jumping protective device is characterized in that each rotation speed card is used for receiving sinusoidal signals measured by a rotation speed probe of the steam turbine, tooth number operation processing is carried out according to speed measuring gears of the steam turbine, rotation speeds of the steam turbine can be obtained and displayed, jumping signals are respectively outputted to four jumping dry contacts by the four rotation speed cards, the first jumping dry contact J1 and the third jumping dry contact J3 are connected with each other in parallel to form a first parallel connection branch, the second jumping dry contact J2 and the fourth jumping dry contact J4 are connected with each other in parallel to form a second parallel connection branch, and the two parallel connection branches are connected with each other in series and then are connected with a jumping state output contact in parallel. The second or first rotation speed and jumping protective device can be applied to the steam turbine.
Description
Technical field
The present invention relates to a kind of turbine speed two or one and chaser protective gear.Belong to steam turbine field.
Background technique
Current turbine speed protective gear is that rotating speed three gets two, and system comprises three road rotating speed cards, and every road rotating speed enters a rotating speed card, and three road rotating speeds three are got two chaser logics and realized by software at system negative.The type system can only show at most a road rotating speed, cannot the every road of intuitive judgment rotating speed fault whether; System three is got two chaser logics and is realized by software, and reliability is determined by system backplane; Two-way 220VAC Power supply is by what switch to realize, and system exists the risk of electrical source exchange power-off.
Summary of the invention
The present invention gets two chaser logics in order to solve existing turbine speed protective gear Wei San road rotating speed three, poor reliability, and can only show at most a road rotating speed, cannot the every road of intuitive judgment rotating speed the problem of fault whether.Turbine speed two or one and chaser protective gear are now provided.
Turbine speed two or one and chaser protective gear, it comprises four road rotating speed cards, four tunnel chaser dry contacts and a chaser State-output contact,
Described every road rotating speed card, the sine wave signal recording for accepting turbine speed probe, and according to the number of teeth calculation process of steam turbine measure speed gears, form turbine speed and show, four road rotating speed cards are exported respectively chaser signal Gei Si road chaser dry contact,
Described four tunnel chaser dry contacts comprise the first chaser dry contact J
1, the second chaser dry contact J
2, the 3rd chaser dry contact J
3with the forth jump machine dry contact J
4,
Described the first chaser dry contact J
1with the 3rd chaser dry contact J
3a parallel branch, the second chaser dry contact J of forming in parallel
2with the forth jump machine dry contact J
4in parallel second parallel branch that forms, after two parallel branches series connection and chaser State-output contact be connected in parallel.
The invention has the beneficial effects as follows: the present invention includes four road rotating speed Ka He tetra-tunnel chaser dry contacts, every road rotating speed enters a rotating speed card, a chaser signal of every road rotating speed card output, is connected with a chaser dry contact, by chaser dry contact J
1and J
3form one or, chaser dry contact J
2and J
4form another or door, two or carry out and logical process, its reliability is got two chaser protective gears than existing three and is enhanced about more than once again; And system dead electricity Shi Mei road chaser dry contact is closed state, while guaranteeing system dead electricity, in chaser state, You Si road rotating speed card forms Si road tach signal and can show simultaneously, therefore, state that can the every road of real-time inspection chaser State-output contact, judges the fault of every road rotating speed.It can be used in steam turbine.
Turbine speed two of the present invention or one and the beneficial effect of chaser protective gear be:
1, four road rotating speed cards are the rotating speed card that model is CSB-II, and the tachometric survey scope of this rotating speed card is 1-9999RPM,
2, four road rotating speed cards are the rotating speed card that model is CSB-II, and the rotating speed testing precision of this rotating speed card is n≤± 1RPM,
3, model is tachometric survey cycle of CSB-II tetra-road rotating speed cards to be T1≤5ms,
4, the steam turbine chaser rotating speed of four road rotating speed cards can arrange arbitrarily dead electricity and stores,
6, Trip Logic: two or one and,
7, system power supply: AC220V 5A 2 tunnels.
Accompanying drawing explanation
Fig. 1 is turbine speed two of the present invention or one and chaser protective gear logical schematic,
Fig. 2 is turbine speed two of the present invention or one and chaser protective gear power supply system schematic diagram.
Embodiment
Embodiment one: with reference to Fig. 1, illustrate present embodiment, the turbine speed two described in present embodiment or one and chaser protective gear, it comprises four road rotating speed cards, four tunnel chaser dry contacts and a chaser State-output contact,
Described every road rotating speed card, the sine wave signal recording for accepting turbine speed probe, and according to the number of teeth calculation process of steam turbine measure speed gears, form turbine speed and show, four road rotating speed cards are exported respectively chaser signal Gei Si road chaser dry contact,
Described four tunnel chaser dry contacts comprise the first chaser dry contact J
1, the second chaser dry contact J
2, the 3rd chaser dry contact J
3with the forth jump machine dry contact J
4,
Described the first chaser dry contact J
1with the 3rd chaser dry contact J
3a parallel branch, the second chaser dry contact J of forming in parallel
2with the forth jump machine dry contact J
4in parallel second parallel branch that forms, after two parallel branches series connection and chaser State-output contact be connected in parallel.
In present embodiment, the number of teeth of the steam turbine measure speed gears of each rotating speed card can arrange arbitrarily; The steam turbine chaser rotating speed of each rotating speed card can arrange arbitrarily.
In present embodiment, the chaser tach signal that each rotating speed card provides is chaser state contact, and it is closed state during system dead electricity, while guaranteeing system dead electricity in chaser state.
Described chaser dry contact is equivalent to a normal open switch.
Embodiment two: with reference to Fig. 2, illustrate present embodiment, present embodiment be to the turbine speed two described in embodiment one or one and chaser protective gear be described further, in present embodiment, it also comprises power supply system,
Described power supply system comprises a 220V ac power supply 2, the 2nd 220V ac power supply 3, an AC-DC power module 4, the 2nd AC-DC power module 5 and redundant processor 6,
The ac power input end of power supply termination the one AC-DC power module 4 of a described 220V ac power supply 2, the DC power output end of a described AC-DC power module 4 connects one group of DC power supply signal input part of redundant processor 6;
The feeder ear of the 2nd 220V ac power supply 3 connects the ac supply signal input end of the 2nd AC-DC power module 5, the DC power output end of described the 2nd AC-DC power module 5 connects another DC power supply signal input part of redundant processor 6, and the DC power signal output terminal of redundant processor 6 is for providing DC supply to whole system.
In power supply system in present embodiment; comprise two cover DC power-supply systems; described two cover DC power-supply systems form redundancy electric power supply system; by redundant processor, to the device in chaser protective gear, provide working power; synchronization, redundant processor synchronization only accesses a set of DC power-supply system, when this DC power-supply system breaks down; switch to another set of DC power-supply system, and then guarantee the normal work of chaser protective gear.
Embodiment three: present embodiment be to the turbine speed two described in embodiment one or one and chaser protective gear be described further; in present embodiment; chaser State-output contact is normal opened contact, and capacity is 220V ac power supply, and electric current is 4A.
Embodiment four: present embodiment be to the turbine speed two described in embodiment one or one and chaser protective gear be described further, in present embodiment, the first chaser dry contact J
1, the second chaser dry contact J
2, the 3rd chaser dry contact J
3with the forth jump machine dry contact J
4actuation time be all less than or equal to 10ms.
Claims (4)
1. turbine speed two or one and chaser protective gear, is characterized in that, it comprises four road rotating speed cards, four tunnel chaser dry contacts and a chaser State-output contact,
Described every road rotating speed card, the sine wave signal recording for accepting turbine speed probe, and according to the number of teeth calculation process of steam turbine measure speed gears, form turbine speed and show, four road rotating speed cards are exported respectively chaser signal Gei Si road chaser dry contact,
Described every road rotating speed card, the sine wave signal recording for accepting turbine speed probe, and according to the number of teeth calculation process of steam turbine measure speed gears, form turbine speed and show, four road rotating speed cards are exported respectively chaser signal Gei Si road chaser dry contact,
Described four tunnel chaser dry contacts comprise the first chaser dry contact J
1, the second chaser dry contact J
2, the 3rd chaser dry contact J
3with the forth jump machine dry contact J
4,
Described the first chaser dry contact J
1with the 3rd chaser dry contact J
3a parallel branch, the second chaser dry contact J of forming in parallel
2with the forth jump machine dry contact J
4in parallel second parallel branch that forms, after two parallel branches series connection and chaser State-output contact be connected in parallel.
2. turbine speed two according to claim 1 or one and chaser protective gear, is characterized in that, it also comprises power supply system,
Described power supply system comprises a 220V ac power supply (2), the 2nd 220V ac power supply (3), an AC-DC power module (4), the 2nd AC-DC power module (5) and redundant processor (6),
The ac power input end of power supply termination the one AC-DC power module (4) of a described 220V ac power supply (2), the DC power output end of a described AC-DC power module (4) connects one group of DC power supply signal input part of redundant processor (6);
The feeder ear of the 2nd 220V ac power supply (3) connects the ac supply signal input end of the 2nd AC-DC power module (5), the DC power output end of described the 2nd AC-DC power module (5) connects another DC power supply signal input part of redundant processor (6), and the DC power signal output terminal of redundant processor (6) is for providing DC supply to whole system.
3. turbine speed two according to claim 1 or one and chaser protective gear, is characterized in that, chaser State-output contact is normal opened contact, and capacity is 220V ac power supply, and electric current is 4A.
4. turbine speed two according to claim 1 or one and chaser protective gear, is characterized in that the first chaser dry contact J
1, the second chaser dry contact J
2, the 3rd chaser dry contact J
3with the forth jump machine dry contact J
4actuation time be all less than or equal to 10ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264711.XA CN104033192A (en) | 2014-06-13 | 2014-06-13 | Second or first rotation speed and jumping protective device for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264711.XA CN104033192A (en) | 2014-06-13 | 2014-06-13 | Second or first rotation speed and jumping protective device for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104033192A true CN104033192A (en) | 2014-09-10 |
Family
ID=51464155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410264711.XA Pending CN104033192A (en) | 2014-06-13 | 2014-06-13 | Second or first rotation speed and jumping protective device for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033192A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810300A (en) * | 2020-07-03 | 2020-10-23 | 东方电气自动控制工程有限公司 | Gas turbine protection device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818791Y (en) * | 2005-03-31 | 2006-09-20 | 上海汽轮机有限公司 | Low-pressure turbine oil safe system of steam turbine |
| CN101004613A (en) * | 2007-01-30 | 2007-07-25 | 北京和利时系统工程股份有限公司 | Method and device for restricting overspeed of a speed adjustment system |
| CN201197086Y (en) * | 2008-05-16 | 2009-02-18 | 鞍山钢铁集团公司第二发电厂 | Redundant power supply used for digital electro-hydraulic control system of turbine |
| CN101435347A (en) * | 2008-12-13 | 2009-05-20 | 东方电气集团东方汽轮机有限公司 | Full fault automatic stop relay protection circuit of steam turbine digital electrohydraulic control system master control modular unit |
| CN101737100A (en) * | 2009-12-28 | 2010-06-16 | 国电南京自动化股份有限公司 | Turbine emergency protective system capable of preventing misoperation |
| CN102004167A (en) * | 2010-10-19 | 2011-04-06 | 国电南京自动化股份有限公司 | Measuring method for rotate speed of turbine |
| CN102042047A (en) * | 2009-10-15 | 2011-05-04 | 上海电气电站设备有限公司 | Overspeed protection device of turbine |
| DE102011083721A1 (en) * | 2011-09-29 | 2013-04-04 | Ellenberger & Poensgen Gmbh | Over-speed protection device for solenoid valve of e.g. gas turbine, has monitoring device that monitors functionality of decision device which selects three-channel control signals, so as to actuate power semiconductor switches |
-
2014
- 2014-06-13 CN CN201410264711.XA patent/CN104033192A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818791Y (en) * | 2005-03-31 | 2006-09-20 | 上海汽轮机有限公司 | Low-pressure turbine oil safe system of steam turbine |
| CN101004613A (en) * | 2007-01-30 | 2007-07-25 | 北京和利时系统工程股份有限公司 | Method and device for restricting overspeed of a speed adjustment system |
| CN201197086Y (en) * | 2008-05-16 | 2009-02-18 | 鞍山钢铁集团公司第二发电厂 | Redundant power supply used for digital electro-hydraulic control system of turbine |
| CN101435347A (en) * | 2008-12-13 | 2009-05-20 | 东方电气集团东方汽轮机有限公司 | Full fault automatic stop relay protection circuit of steam turbine digital electrohydraulic control system master control modular unit |
| CN102042047A (en) * | 2009-10-15 | 2011-05-04 | 上海电气电站设备有限公司 | Overspeed protection device of turbine |
| CN101737100A (en) * | 2009-12-28 | 2010-06-16 | 国电南京自动化股份有限公司 | Turbine emergency protective system capable of preventing misoperation |
| CN102004167A (en) * | 2010-10-19 | 2011-04-06 | 国电南京自动化股份有限公司 | Measuring method for rotate speed of turbine |
| DE102011083721A1 (en) * | 2011-09-29 | 2013-04-04 | Ellenberger & Poensgen Gmbh | Over-speed protection device for solenoid valve of e.g. gas turbine, has monitoring device that monitors functionality of decision device which selects three-channel control signals, so as to actuate power semiconductor switches |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810300A (en) * | 2020-07-03 | 2020-10-23 | 东方电气自动控制工程有限公司 | Gas turbine protection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103472331B (en) | A kind of photovoltaic generation fault diagnosis system based on photovoltaic physical model | |
| CN201965215U (en) | Storage battery pack on-line monitoring system | |
| CN105909324B (en) | Two from three voting, four take the steam turbine protection device that two hydraulic pressure interdict | |
| CN105699927A (en) | DC system insulation monitor calibration device | |
| CN203867634U (en) | Steam turbine rotating speed two-out-of-three shutdown protecting device | |
| CN104033192A (en) | Second or first rotation speed and jumping protective device for steam turbine | |
| CN103091580A (en) | Micro-grid electric energy monitoring device based on ARM | |
| CN203867633U (en) | Steam turbine rotating speed two-or-one and shutdown protecting device | |
| CN108594051A (en) | A kind of electrical equipment malfunction automatic testing method and system | |
| CN102426304A (en) | Automatic tester of direct current microcomputer protective device and testing method thereof | |
| CN201629559U (en) | Turbine over-speed protection device with automatic self-detecting function | |
| CN102169134A (en) | A hardware-based transient voltage recording method | |
| CN206740886U (en) | A kind of test circuit | |
| CN104033193A (en) | Two-out-of-three rotation speed jumping protective device for steam turbine | |
| CN113432854B (en) | High-voltage switch cabinet tulip contact state monitoring method, system, equipment and medium | |
| CN104734121B (en) | A kind of current control method and device of off-network type energy accumulation current converter | |
| CN103412241A (en) | Cable fault positioning system based on single-chip microcomputer technology | |
| CN103683299B (en) | A kind of distribution transformer branch load monitoring device | |
| CN205844887U (en) | A kind of test system of new forms of energy cooling protection system | |
| CN203217003U (en) | Micro-grid electric energy monitoring device based on ARM | |
| CN204556771U (en) | Small Electric Current Earthing And Routing Device | |
| CN201623475U (en) | Small current system grounding protection device | |
| CN203365616U (en) | Cable fault locating system based on single-chip microcomputer technology | |
| CN104348255B (en) | Transformer station measurement and control device power abnormal alarm method | |
| CN209590636U (en) | A kind of electrical soft fault diagnosis device of analog quantity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140910 |