CN214008848U - Automatic control system for nitrogen replacement of generator - Google Patents
Automatic control system for nitrogen replacement of generator Download PDFInfo
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- CN214008848U CN214008848U CN202023188514.4U CN202023188514U CN214008848U CN 214008848 U CN214008848 U CN 214008848U CN 202023188514 U CN202023188514 U CN 202023188514U CN 214008848 U CN214008848 U CN 214008848U
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- nitrogen gas
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Abstract
The utility model relates to a generator nitrogen gas replacement automatic control system. The quantity of on-spot nitrogen cylinder is deposited and need a large amount of gas pipelines to lay when gaseous replacement, adopts the nitrogen cylinder manual work to change one by one, and entry pressure is uncontrollable, needs frequently to change the nitrogen cylinder again. Meanwhile, the personnel who unload and load the nitrogen cylinder bear the risk of injury. The utility model provides a generator nitrogen gas replacement automatic control system which constitutes and includes: nitrogen gas storage jar (1), nitrogen gas storage jar is connected with female pipe of nitrogen gas (2), the female pipe upper shed of nitrogen gas is connected with instrument tube (3), the instrument tube inserts the gas replacement station of generator, nitrogen gas storage jar top is connected with the unit stiff end, nitrogen gas storage jar one end is connected with unloads nitrogen hand-operated gate (4), be connected with respectively on the female pipe of nitrogen gas and supply nitrogen electric actuator (5), changer (6) and flowmeter (7), changer and flowmeter are connected with PLC control system (8). The utility model discloses be applied to the thermoelectricity field.
Description
Technical Field
The utility model relates to a generator nitrogen gas replacement automatic control system.
Background
The quantity of on-spot nitrogen cylinder is deposited and need a large amount of gas pipelines to lay when gaseous replacement, adopts the nitrogen cylinder manual work to change one by one, and entry pressure is uncontrollable, needs frequently to change the nitrogen cylinder again. Meanwhile, the personnel who unload and load the nitrogen cylinder bear the risk of injury.
The existing direct-insertion type zirconium oxide oxygen probe filtering device has the main defects that:
(1) by adopting the collecting and exhausting mode, maintainers need to carry the nitrogen cylinder back and forth, and the workload of nitrogen replacement is increased;
(2) a large number of gas pipelines need to be laid when the storage quantity of the on-site nitrogen cylinders and the gas are replaced;
(3) the nitrogen cylinder unloads and the existence personnel injury risk of loading.
The invention content is as follows:
the utility model aims at providing a generator nitrogen gas replacement automatic control system.
The above purpose is realized by the following technical scheme:
the utility model provides a generator nitrogen gas replacement automatic control system which constitutes and includes: nitrogen gas storage jar, nitrogen gas storage jar female union coupling with nitrogen gas, the female pipe upper shed of nitrogen gas be connected with the instrument tube, the instrument tube insert the gaseous displacement station of generator, nitrogen gas storage jar top be connected with the unit stiff end, nitrogen gas storage jar one end be connected with and unload nitrogen hand-operated gate, the female pipe on be connected with respectively and supply nitrogen electric actuator, changer and flowmeter be connected with PLC control system.
Generator nitrogen gas replacement automatic control system, nitrogen gas storage jar capacity be 30 cubes, 2.5Mpa, the female pipe of 316 stainless steel of adoption of nitrogen gas, the pipe diameter is phi 32, the pipe diameter of instrument pipe be phi 14.
The utility model has the advantages that:
1. the utility model discloses a to generator nitrogen gas replacement automatic control system's transformation, solved the maintainer and need not make a round trip to carry the nitrogen cylinder, alleviateed nitrogen gas replacement work volume and improved work efficiency, nitrogen gas replacement work will realize standardizing simultaneously, will greatly improve generator gas replacement efficiency and overhaul job progress scheduling problem.
The utility model discloses a set up the female pipe of nitrogen gas and supply with the gaseous replacement back of generator, through addding female pipe pressure transmitter, flowmeter and entry and evacuation electric valve and necessary emergency exit, combine generator body pressure, hydrogen oil pressure difference isoparametric, upload to unit DCS, through setting up one set of reasonable logic control procedure, full automatic control can be realized in generator nitrogen gas replacement work, one set of inert gas extinguishing device has been increased in other words simultaneously, be favorable to the short circuit or the hydrogen explosion accident processing of generator, prevent secondary accident from expanding.
The method comprises the following specific steps:
(1) a set of nitrogen storage tank (the capacity is 30 cubic, 2.5 Mpa) is arranged at the fixed end of the unit, a nitrogen main pipe is laid for the unit, a 316 stainless steel main pipe is adopted, the pipe diameter is phi 32, an opening on the main pipe is connected with a pipe diameter phi 14 instrument pipe, and the phi 14 instrument pipe is connected with a gas replacement station of a generator;
(2) after the nitrogen main pipe is arranged to supply generator gas for replacement, a main pipe pressure transmitter, a flowmeter, an inlet, an emptying electric valve and a necessary safety door are additionally arranged at the position of a 316 stainless steel main pipe, parameters such as generator body pressure, hydrogen-oil pressure difference and the like are combined, the parameters are uploaded to a unit DCS, and full-automatic control can be realized through setting a set of reasonable logic control program during generator nitrogen replacement.
(3) If the full-automatic control of the nitrogen replacement work of the generator is realized, the nitrogen replacement work can be standardized, and the gas replacement efficiency and the overhaul work progress of the generator can be greatly improved;
(4) after the transformation, a set of inert gas fire extinguishing device is equivalently added, which is beneficial to the short circuit or hydrogen explosion accident treatment of the generator and prevents the secondary accident from expanding.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises a nitrogen storage tank, 2, a nitrogen main pipe, 3, an instrument pipe, 4, a nitrogen discharging manual door, 5, a nitrogen supply electric actuating mechanism, 6, a transmitter, 7, a flowmeter, 8 and a PLC control system.
The specific implementation mode is as follows:
example 1:
the utility model provides a generator nitrogen gas replacement automatic control system which constitutes and includes: nitrogen gas storage jar 1, nitrogen gas storage jar be connected with female pipe 2 of nitrogen gas, the female pipe upper shed of nitrogen gas be connected with instrument tube 3, instrument tube insert the gaseous displacement station of generator, nitrogen gas storage jar top be connected with the unit stiff end, nitrogen gas storage jar one end be connected with and unload nitrogen hand door 4, the female pipe on be connected with respectively and supply nitrogen electric actuator 5, changer 6 and flowmeter 7, changer and flowmeter be connected with PLC control system 8.
Example 2:
according to embodiment 1 generator nitrogen replacement automatic control system, nitrogen gas storage jar capacity be 30 cubes, 2.5Mpa, the female pipe of nitrogen gas adopt the female pipe of 316 stainless steel, the pipe diameter is phi 32, the pipe diameter of instrument pipe be phi 14.
Claims (2)
1. The utility model provides a generator nitrogen gas replacement automatic control system which constitutes and includes: nitrogen gas storage jar, characterized by: nitrogen gas storage jar and the female union coupling of nitrogen gas, the female pipe upper shed of nitrogen gas be connected with the instrument tube, the instrument tube insert the gaseous displacement station of generator, nitrogen gas storage jar top be connected with the unit stiff end, nitrogen gas storage jar one end be connected with and unload nitrogen hand door, the female pipe of nitrogen gas on be connected with respectively and supply nitrogen electric actuator, changer and flowmeter and PLC control system to be connected.
2. The automatic control system for nitrogen replacement of generator according to claim 1, wherein: the nitrogen gas storage tank capacity be 30 cubes, 2.5Mpa, the female pipe of nitrogen gas adopt the female pipe of 316 stainless steel, the pipe diameter is phi 32, the pipe diameter of instrument tube be phi 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023188514.4U CN214008848U (en) | 2020-12-26 | 2020-12-26 | Automatic control system for nitrogen replacement of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023188514.4U CN214008848U (en) | 2020-12-26 | 2020-12-26 | Automatic control system for nitrogen replacement of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214008848U true CN214008848U (en) | 2021-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023188514.4U Active CN214008848U (en) | 2020-12-26 | 2020-12-26 | Automatic control system for nitrogen replacement of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214008848U (en) |
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2020
- 2020-12-26 CN CN202023188514.4U patent/CN214008848U/en active Active
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