CN104374438A - Gas flow detection device and method for light gas turbine combustion chamber nozzle - Google Patents
Gas flow detection device and method for light gas turbine combustion chamber nozzle Download PDFInfo
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- CN104374438A CN104374438A CN201410583447.6A CN201410583447A CN104374438A CN 104374438 A CN104374438 A CN 104374438A CN 201410583447 A CN201410583447 A CN 201410583447A CN 104374438 A CN104374438 A CN 104374438A
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- turbine combustion
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Abstract
The invention discloses a gas flow detection device and method for a light gas turbine combustion chamber nozzle, and relates to gas flow detection devices and methods. The problem that no detection device and method special for the light gas turbine combustion chamber nozzle exist at present can be solved. One end of a flowmeter is communicated with a first connecting tube, the first connecting tube is provided with a stop valve, and a second connecting tube, a first flared tube body, a second flared tube body, a gas collecting guide barrel body and a nozzle connecting flange are sequentially communicated with the other end of the flowmeter. The detection method includes the first step of cleaning work, the second step of dewatering work, the third step of adjusting work, the fourth step of data recording work, the fifth step of calculating work and the sixth step of the work for detecting the other gas circuit end of the nozzle. The device and method are specially used in gas flow detection work of the light gas turbine combustion chamber nozzle, and the device and method are used for detecting the gas flow of the light gas turbine combustion chamber nozzle.
Description
Technical field
The present invention is specifically related to a kind of airflow detecting device and detection method thereof of lightweight gas turbine combustion chamber burner.
Background technology
Gas-turbine combustion chamber nozzle is by fuel and the good combination of air, accelerates fuel burning rate in a combustion chamber, improves the utilization factor of fuel.In gas-turbine combustion chamber, if orifice gas flow can not meet requirement, in air and fuel mix process, there will be fuel mix with air improper, be atomized insufficient, just likely cause the combustion instability phenomenons such as the flame-out or flame pulsation of gas turbine, burning efficiency also can not be very high.Therefore combustion chamber burner gas flow directly has influence on the overall performance of gas turbine, easily occur that compressed air pressure is unstable for combustion chamber burner detection of gas flow rate, the problems such as measuring instrument reading out of true, pressurized air is adopted to pass through the gas-detecting device of two flared section and a barretter, mineralization pressure meets the air of the dynamic steady state of testing requirements, the dynamic steady state air that pressure meets testing requirements flows through the combustion chamber burner of flange clamping, pass through thermal resistance, pressure unit, pressure difference transmitter on integration Wen conical pipe flowmeter and the measurement of intelligent digital integrating instrument, complete detection of gas flow rate work, improve the precision of combustion chamber burner detection of gas flow rate.
Summary of the invention
The object of this invention is to provide a kind of airflow detecting device and detection method thereof of lightweight gas turbine combustion chamber burner, with solve existing to lightweight gas turbine combustion chamber burner without special pick-up unit with the problem detected it without special detection method.
The present invention solves the problems of the technologies described above the technical scheme taked to be:
The airflow detecting device of described lightweight gas turbine combustion chamber burner comprises flowmeter, first enlarging body, second enlarging body, gas collection guide cylinder, nozzle flange for connection, stop valve, stop valve flange for connection, first connecting pipe and the second connecting pipe, temperature detector, pressure unit and differential pressure transmitter, one end of described flowmeter is communicated with the first connecting pipe, described first connecting pipe is communicated with stop valve by stop valve flange for connection, the other end of described flowmeter is communicated with the second connecting pipe in turn, first enlarging body, second enlarging body, gas collection guide cylinder and nozzle flange for connection, described temperature detector and pressure unit are all communicated with the first connecting pipe, described flowmeter is provided with differential pressure transmitter.
The air-flow detection method of described lightweight gas turbine combustion chamber burner realizes according to following steps:
Step one: cleaning: first lightweight gas turbine combustion chamber burner is placed in ultrasonic cleaning apparatus and cleans, then stop valve, the first connecting pipe, flowmeter, the second connecting pipe, the first enlarging body, the second enlarging body, gas collection guide cylinder, nozzle flange for connection are communicated with in turn with stop valve flange for connection, then a gas circuit end of lightweight gas turbine combustion chamber burner is connected on nozzle flange for connection by auxiliary connecting device;
Step 2: dewater work: first open described stop valve, again the pressurized air of drying is passed in the cavity that the first connecting pipe, flowmeter, the second connecting pipe, the first enlarging body, the second enlarging body and gas collection guide cylinder form by stop valve, regulates pressure at 0.15 ~ 0.25MPa and keep 0.2 ~ 0.5 hour;
Step 3: adjustment work: under the airtight conditions that the airflow detecting device of described lightweight gas turbine combustion chamber burner is remained in step 2, under the state that stop valve is opened, air-flow enters in gas collection guide cylinder by the first enlarging body and the second enlarging body, under the second manometric monitoring on the first tensimeter on described second connecting pipe and described gas collection guide cylinder, adjust the stop valve on the first connecting pipe, first gate valve and the second gate valve, wherein the first tensimeter and the second manometric precision are 0.0001MPa, range is 0MPa ~ 2MPa, ensure pressurized air be in the testing requirements of pressure between 0.0999MPa ~ 0.1001MPa under dynamic steady state,
Step 4: by be in step 2 and step 3 pressure meet regulate pressure at 0.15 ~ 0.25MPa and keep 0.2 ~ 0.5 hour, ensure pressurized air be in pressure between 0.0999MPa ~ 0.1001MPa and keep at least 1 minute testing requirements dynamic steady state under flow in the gas circuit of described lightweight gas turbine combustion chamber burner through auxiliary connecting device, the data measured by differential pressure transmitter simultaneously recorded on temperature detector, pressure unit and the flowmeter on the first connecting pipe 8 are Gc
1, the data Gc will measured by many instrument signal spools
1feed back on intelligent digital integrating instrument, mass rate intelligent digital integrating instrument demonstrated in described lightweight gas turbine combustion chamber burner in step 3 under state is Gc
2;
Step 5: evaluation work: the environment temperature K by the atmospheric pressure P0 under measuring state and when measuring records, will by correction formula Gs=Gc
2× α revises data on intelligent digital integrating instrument, and correction formula is Gs=Gc × α, and wherein α is calculated by atmospheric temperature K when atmospheric pressure P0 during test and test, Gc
2for the mass rate of display on intelligent digital integrating instrument 20, the flow Gs required under atmospheric conditions can be calculated; Correction formula Gs=Gc
2× α is effect is revise data Gc on intelligent digital integrating instrument
2, be used for being converted to the flow number Gs under standard atmosphere condition;
Step 6: the testing of another gas circuit end of nozzle: be communicated with stop valve flange for connection by auxiliary connecting device another gas circuit end by described lightweight gas turbine combustion chamber burner, measures the flow value of another gas circuit end of described lightweight gas turbine combustion chamber burner again according to step 2 to the operating process of step 5.
Beneficial effect of the present invention:
The present invention is pick-up unit for detecting the gas flow in lightweight gas turbine combustion chamber burner and detection method.The present invention by the first enlarging body, the second enlarging body and gas collection guide cylinder with the use of, pressurized air is in dynamic steady state that pressure meets testing requirements, by the use of flowmeter, effectively improve the precision of combustion chamber burner detection of gas flow rate.The present invention aims at the gas flow detected in lightweight gas turbine combustion chamber burner and develops, fill up special in the pick-up unit of gas flow in lightweight gas turbine combustion chamber burner and the blank of method in this area, compared with prior art, accuracy of detection improves 30% in the present invention.The flow detector that pick-up unit in the present invention is integrated, by the flow detector of integration, achieves and detects accurately nozzle flow, and measurement data is accurate, stable, reproducible, ensure that the work of gas turbine safety and stability.The present invention is simple clear easy to operate, easy to use, is applicable to popularity.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the airflow detecting device of lightweight gas turbine combustion chamber burner in the present invention, and Fig. 2 is A place enlarged drawing in Fig. 1.
Embodiment
Embodiment one: composition graphs 1 and Fig. 2 illustrate present embodiment, described in present embodiment, the airflow detecting device of lightweight gas turbine combustion chamber burner comprises flowmeter 1, first enlarging body 2, second enlarging body 3, gas collection guide cylinder 4, nozzle flange for connection 5, stop valve 6, stop valve flange for connection 7, first connecting pipe 8 and the second connecting pipe 9, temperature detector 14, pressure unit 15 and differential pressure transmitter 17, one end of described flowmeter 1 is communicated with the first connecting pipe 8, described first connecting pipe 8 is communicated with stop valve 6 by stop valve flange for connection 7, the other end of described flowmeter 1 is communicated with the second connecting pipe 9 in turn, first enlarging body 2, second enlarging body 3, gas collection guide cylinder 4 and nozzle flange for connection 5, described temperature detector 14 and pressure unit 15 are all communicated with the first connecting pipe 8, described flowmeter 1 is provided with differential pressure transmitter 17.
First connecting pipe 8 and the second connecting pipe 9 described in present embodiment are DN40 pipe, and described stop valve 6 model is J41H, PN=1.6MPa, and stop valve flange for connection 7 is DN40, PN=1.6MPa.The first gasket seal 22 is provided with between second connecting pipe 9 and the first enlarging body 2 described in present embodiment, the second gasket seal 23 is provided with between described first enlarging body 2 and the second enlarging body 3, the 3rd gasket seal 24 is provided with between described second enlarging body 3 and gas collection guide cylinder 4, the pad circle 25 of DN250 is provided with between nozzle flange for connection 5 and gas collection guide cylinder 4, first gasket seal 22, second gasket seal 23, the setting of the pad circle 25 of the 3rd gasket seal 24 and DN250 is the impermeability in order to strengthen airflow detecting device, be conducive to the present invention effectively to carry out smoothly the testing of lightweight gas turbine combustion chamber burner.Removably connected by screw bolt and nut between the pad circle 25 of nozzle flange for connection 5, DN250 and gas collection guide cylinder 4 in present embodiment.Described first enlarging body 2 and the second enlarging body 3 are the conical tube increased gradually from Single port to another port.
Embodiment two: composition graphs 1 and Fig. 2 illustrate present embodiment, described in present embodiment, flowmeter 1 is Wen's conical pipe flowmeter.The integrated Wen's conical pipe flowmeter of Wen's conical pipe flowmeter 1.Other composition and annexation identical with embodiment one.
Embodiment three: composition graphs 1 and Fig. 2 illustrate present embodiment, the airflow detecting device of the combustion chamber burner of lightweight gas turbine described in present embodiment also comprises the 3rd connecting pipe 10, 4th connecting pipe 11, first gate valve 12, second gate valve 13, needle valve 16, first tensimeter 18 and the second tensimeter 19, described first connecting pipe 8 is communicated with the 3rd connecting pipe 10 and the 4th connecting pipe 11, described 3rd connecting pipe 10 is provided with the first gate valve 12, described 4th connecting pipe 11 is provided with the second gate valve 13, needle valve 16 is provided with between described pressure unit 15 and the first connecting pipe 8, described second connecting pipe 9 is provided with the first tensimeter 18, described gas collection guide cylinder 4 is provided with the second tensimeter 19.
In present embodiment, the 3rd connecting pipe 10 is DN10 pipe, and described 4th connecting pipe 11 is DN15 pipe, and described first gate valve 12 and the second gate valve 13 are Z41H-16C gate valve.Described needle valve 16 is J23W-160P needle valve.In present embodiment by temperature detector 14, pressure unit 15, between differential pressure transmitter 17, first tensimeter 18 and the second tensimeter 19 with the use of effectively strengthening accuracy of detection of the present invention.Other composition and annexation identical with two with embodiment one.
Embodiment four: composition graphs 1 and Fig. 2 illustrate present embodiment, temperature detector 14 described in present embodiment is thermal resistance.Other composition and annexation identical with embodiment three.
Embodiment five: composition graphs 1 and Fig. 2 illustrate present embodiment, the airflow detecting device of described lightweight gas turbine combustion chamber burner described in present embodiment also comprises intelligent digital integrating instrument 20 and Duo Gen instrument signal spool 21, and described temperature detector 14, pressure unit 15 and differential pressure transmitter 17 are electrically connected with intelligent digital integrating instrument 20 by many instrument signal spools 21.Temperature detector 14 described in present embodiment, pressure unit 15 and differential pressure transmitter 17 to be energized with intelligent digital integrating instrument 20 by many instrument signal spools 21 and to be connected, in present embodiment, intelligent digital integrating instrument 20 is Q intelligent digital integrating instrument, the present invention, by the application of temperature detector 14, pressure unit 15, differential pressure transmitter 17, first tensimeter 18, second tensimeter 19 and Q intelligent digital integrating instrument, effectively improves the accuracy of detection of lightweight gas turbine combustion chamber burner gas flow.Other composition and annexation identical with embodiment four.
Embodiment six: composition graphs 1 and Fig. 2 illustrate present embodiment, and described in present embodiment, method realizes according to following steps:
Step one: cleaning: first lightweight gas turbine combustion chamber burner is placed in ultrasonic cleaning apparatus and cleans, then stop valve 6, first connecting pipe 8, flowmeter 1, second connecting pipe 9, first enlarging body 2, second enlarging body 3, gas collection guide cylinder 4, nozzle flange for connection 5 are communicated with in turn with stop valve flange for connection 7, then are connected on nozzle flange for connection 5 by a gas circuit end of lightweight gas turbine combustion chamber burner by auxiliary connecting device;
Auxiliary connecting device in this step comprises pneumatic quick-change coupler, adapter, ebonite pipe, one end, the adapter of described pneumatic quick-change coupler are communicated with successively with one end of ebonite pipe, the other end of described pneumatic quick-change coupler is communicated with nozzle flange for connection 5, the other end of described ebonite pipe is communicated with a gas circuit end of lightweight gas turbine combustion chamber burner, make testing process of the present invention simple to operate by the use of nozzle flange for connection 5, pneumatic quick-change coupler, adapter, ebonite pipe, labour intensity is little, is applicable to popularity;
Step 2: dewater work: first open described stop valve 6, again the pressurized air of drying is passed in the cavity that the first connecting pipe 8, flowmeter 1, second connecting pipe 9, first enlarging body 2, second enlarging body 3 and gas collection guide cylinder 4 form by stop valve 6, regulates pressure at 0.15 ~ 0.25MPa and keep 0.2 ~ 0.5 hour; Regulate pressure at 0.2MPa in this step and keep 0.3 hour for best;
Step 3: adjustment work: under the airtight conditions that the airflow detecting device of described lightweight gas turbine combustion chamber burner is remained in step 2, under the state that stop valve 6 is opened, air-flow enters in gas collection guide cylinder 4 by the first enlarging body 2 and the second enlarging body 3, under the monitoring of the first tensimeter 18 on described second connecting pipe 9 and the second tensimeter 19 on described gas collection guide cylinder 4, adjust the stop valve 6 on the first connecting pipe 8, first gate valve 12 and the second gate valve 13, wherein the precision of the first tensimeter 18 and the second tensimeter 19 is 0.0001MPa, range is 0MPa ~ 2MPa, ensure pressurized air be in the testing requirements of pressure between 0.0999MPa ~ 0.1001MPa under dynamic steady state,
Step 4: by be in step 2 and step 3 pressure meet regulate pressure at 0.15 ~ 0.25MPa and keep 0.2 ~ 0.5 hour, ensure pressurized air be in pressure between 0.0999MPa ~ 0.1001MPa and keep at least 1 minute testing requirements dynamic steady state under flow in the gas circuit of described lightweight gas turbine combustion chamber burner through auxiliary connecting device, the data measured by differential pressure transmitter 17 simultaneously recorded on the temperature detector 14 on the first connecting pipe 8, pressure unit 15 and flowmeter 1 are Gc
1, the data Gc will measured by many instrument signal spools 21
1feed back on intelligent digital integrating instrument 20, mass rate intelligent digital integrating instrument 20 demonstrated in described lightweight gas turbine combustion chamber burner in step 3 under state is Gc
2;
Step 5: evaluation work: the environment temperature K by the atmospheric pressure P0 under measuring state and when measuring records, will by correction formula Gs=Gc
2× α revises data on intelligent digital integrating instrument 20, and correction formula is Gs=Gc × α, and wherein α is calculated by atmospheric temperature K when atmospheric pressure P0 during test and test, Gc
2for the mass rate of display on intelligent digital integrating instrument 20, the flow Gs required under atmospheric conditions can be calculated; Correction formula Gs=Gc in this step
2× α is effect is revise data Gc on intelligent digital integrating instrument 20
2, be used for being converted to the flow number Gs under standard atmosphere condition;
Step 6: the testing of another gas circuit end of nozzle: be communicated with stop valve flange for connection 7 by auxiliary connecting device another gas circuit end by described lightweight gas turbine combustion chamber burner, measures the flow value of another gas circuit end of described lightweight gas turbine combustion chamber burner again according to step 2 to the operating process of step 5.
Claims (6)
1. an airflow detecting device for lightweight gas turbine combustion chamber burner, is characterized in that: the airflow detecting device of described lightweight gas turbine combustion chamber burner comprises flowmeter (1), first enlarging body (2), second enlarging body (3), gas collection guide cylinder (4), nozzle flange for connection (5), stop valve (6), stop valve flange for connection (7), first connecting pipe (8) and the second connecting pipe (9), temperature detector (14), pressure unit (15) and differential pressure transmitter (17), one end of described flowmeter (1) is communicated with the first connecting pipe (8), described first connecting pipe (8) is communicated with stop valve (6) by stop valve flange for connection (7), and the other end of described flowmeter (1) is communicated with the second connecting pipe (9) in turn, first enlarging body (2), second enlarging body (3), gas collection guide cylinder (4) and nozzle flange for connection (5), described temperature detector (14) is all communicated with the first connecting pipe (8) with pressure unit (15), described flowmeter (1) is provided with differential pressure transmitter (17).
2. the airflow detecting device of lightweight gas turbine combustion chamber burner according to claim 1, is characterized in that: described flowmeter (1) is Wen's conical pipe flowmeter.
3. the airflow detecting device of lightweight gas turbine combustion chamber burner according to claim 1 or 2, it is characterized in that: the airflow detecting device of described lightweight gas turbine combustion chamber burner also comprises the 3rd connecting pipe (10), 4th connecting pipe (11), first gate valve (12), second gate valve (13), needle valve (16), first tensimeter (18) and the second tensimeter (19), described first connecting pipe (8) is communicated with the 3rd connecting pipe (10) and the 4th connecting pipe (11), described 3rd connecting pipe (10) is provided with the first gate valve (12), described 4th connecting pipe (11) is provided with the second gate valve (13), needle valve (16) is provided with between described pressure unit (15) and the first connecting pipe (8), described second connecting pipe (9) is provided with the first tensimeter (18), described gas collection guide cylinder (4) is provided with the second tensimeter (19).
4. the airflow detecting device of lightweight gas turbine combustion chamber burner according to claim 3, is characterized in that: described temperature detector (14) is thermal resistance.
5. the airflow detecting device of lightweight gas turbine combustion chamber burner according to claim 4, it is characterized in that: the airflow detecting device of described lightweight gas turbine combustion chamber burner also comprises intelligent digital integrating instrument (20) and many instrument signal spools (21), and described temperature detector (14), pressure unit (15) and differential pressure transmitter (17) are electrically connected with intelligent digital integrating instrument (20) by many instrument signal spools (21).
6. utilize the airflow detecting device of lightweight gas turbine combustion chamber burner described in claim 1 and the detection method realized, it is characterized in that, described method realizes according to following steps:
Step one: cleaning: first lightweight gas turbine combustion chamber burner is placed in ultrasonic cleaning apparatus and cleans, then by stop valve (6), first connecting pipe (8), flowmeter (1), second connecting pipe (9), first enlarging body (2), second enlarging body (3), gas collection guide cylinder (4), nozzle flange for connection (5) is communicated with in turn with stop valve flange for connection (7), again a gas circuit end of lightweight gas turbine combustion chamber burner is connected on nozzle flange for connection (5) by auxiliary connecting device,
Step 2: dewater work: first open described stop valve (6), be passed in the cavity that the first connecting pipe (8), flowmeter (1), the second connecting pipe (9), the first enlarging body (2), the second enlarging body (3) and gas collection guide cylinder (4) form by the pressurized air of drying by stop valve (6) again, adjustment pressure is at 0.15 ~ 0.25MPa and keep 0.2 ~ 0.5 hour;
Step 3: adjustment work: under the airtight conditions that the airflow detecting device of described lightweight gas turbine combustion chamber burner is remained in step 2, under the state that stop valve (6) is opened, air-flow enters in gas collection guide cylinder (4) by the first enlarging body (2) and the second enlarging body (3), under the monitoring of the first tensimeter (18) on described second connecting pipe (9) and the second tensimeter (19) on described gas collection guide cylinder (4), adjust the stop valve (6) on the first connecting pipe (8), first gate valve (12) and the second gate valve (13), wherein the precision of the first tensimeter (18) and the second tensimeter (19) is 0.0001MPa, range is 0MPa ~ 2MPa, ensure pressurized air be in the testing requirements of pressure between 0.0999MPa ~ 0.1001MPa under dynamic steady state,
Step 4: by be in step 2 and step 3 pressure meet regulate pressure at 0.15 ~ 0.25MPa and keep 0.2 ~ 0.5 hour, ensure pressurized air be in pressure between 0.0999MPa ~ 0.1001MPa and keep at least 1 minute testing requirements dynamic steady state under flow in the gas circuit of described lightweight gas turbine combustion chamber burner through auxiliary connecting device, the data measured by differential pressure transmitter (17) simultaneously recorded on the temperature detector (14) on the first connecting pipe (8), pressure unit (15) and flowmeter (1) are Gc
1, the data Gc will measured by many instrument signal spools (21)
1feed back on intelligent digital integrating instrument (20), on intelligent digital integrating instrument (20), the mass rate demonstrated in described lightweight gas turbine combustion chamber burner in step 3 under state is Gc
2;
Step 5: evaluation work: the environment temperature K by the atmospheric pressure P0 under measuring state and when measuring records, will by correction formula Gs=Gc
2× α revises the upper data of intelligent digital integrating instrument (20), and correction formula is Gs=Gc × α, and wherein α is calculated by atmospheric temperature K when atmospheric pressure P0 during test and test, Gc
2for the mass rate in the upper display of intelligent digital integrating instrument (20), the flow Gs required under atmospheric conditions can be calculated;
Step 6: the testing of another gas circuit end of nozzle: be communicated with stop valve flange for connection (7) by auxiliary connecting device another gas circuit end by described lightweight gas turbine combustion chamber burner, measures the flow value of another gas circuit end of described lightweight gas turbine combustion chamber burner again according to step 2 to the operating process of step 5.
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| CN201410583447.6A CN104374438B (en) | 2014-10-27 | 2014-10-27 | The air-flow detection method of lightweight gas turbine combustion chamber burner |
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|---|---|---|---|
| CN201410583447.6A CN104374438B (en) | 2014-10-27 | 2014-10-27 | The air-flow detection method of lightweight gas turbine combustion chamber burner |
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| CN104374438B CN104374438B (en) | 2017-09-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108731924A (en) * | 2018-04-10 | 2018-11-02 | 华电电力科学研究院有限公司 | Gas turbine nozzle flow testing system and test method based on Laval nozzle principle |
| CN108779994A (en) * | 2016-03-22 | 2018-11-09 | Mtu 腓特烈港有限责任公司 | Measuring device, the fuel gas supply equipment with such measuring device and the internal combustion engine with such fuel gas supply equipment |
| CN110410219A (en) * | 2019-07-10 | 2019-11-05 | 国营川西机器厂 | One kind being used for aircraft engine airflow channel clean-in-place method made in Russia |
| CN112945327A (en) * | 2021-05-13 | 2021-06-11 | 西安多普多信息科技有限公司 | Mass flow detection method, device and system |
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|---|---|
| CN104374438B (en) | 2017-09-19 |
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Effective date of registration: 20221227 Address after: 150000 building 3, high tech production base, Nangang District, Harbin City, Heilongjiang Province Patentee after: HARBIN TURBINE Co.,Ltd. Patentee after: HADIAN POWER EQUIPMENT NATIONAL ENGINEERING RESEARCH CENTER CO.,LTD. Address before: 150046 No. three power road 345, Xiangfang District, Heilongjiang, Harbin Patentee before: HARBIN TURBINE Co.,Ltd. |
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