CN202814952U - Working gas purity detection device for hydrogen-cooled generator - Google Patents
Working gas purity detection device for hydrogen-cooled generator Download PDFInfo
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- CN202814952U CN202814952U CN 201220507607 CN201220507607U CN202814952U CN 202814952 U CN202814952 U CN 202814952U CN 201220507607 CN201220507607 CN 201220507607 CN 201220507607 U CN201220507607 U CN 201220507607U CN 202814952 U CN202814952 U CN 202814952U
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- gas circuit
- purity
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Abstract
The utility model discloses a working gas purity detection device for a hydrogen-cooled generator. The working gas purity detection device comprises a gas purity transducer, an analytical sampling gas path, a calibration gas path, a top sampling gas path and a bottom sampling gas path, wherein the top sampling gas path is communicated with a region of the top of the hydrogen-cooled generator to sample and measure replacing gases in the region, the bottom sampling gas path is communicated with a region of the bottom of the hydrogen-cooled generator to sample and measure hydrogen in the region, a gas inlet end of the analytical sampling gas path is communicated with the top sampling gas path and the bottom sampling gas path through a two-position three-way valve, the two-position three-way valve comprises a gas outlet and two gas inlets, the gas outlet is in butt joint with the analytical sampling gas path, and gas inlets are communicated with the top sampling gas path and the bottom sampling gas path respectively. The working gas purity detection device samples and analyzes different gases in different regions through switching of the two-position three-way valve, the whole switching process is simple to operate, mistakes are not made easily, and the working efficiency of the purity detection device can be effectively improved.
Description
Technical field
The utility model belongs to the hydrogen cooled generator technical field, is specifically related to a kind of hydrogen cooled generator work gas purity pick-up unit.
Background technology
Hydrogen is as a kind of heat-conduction medium of excellence, is applied on the generator as heat eliminating medium more, during use, hydrogen is filled with in the generator machine room.But the potpourri of hydrogen and air can be blasted after surpassing certain scope, so should be noted that the hydrogen purity in the machine room.For in the Chinese utility model patent instructions of CN201184880Y a kind of hydrogen analyser is disclosed at Granted publication number, this hydrogen analyser comprises sampling gas circuit and calibration gas circuit and is used for the gas that enters from sampling gas circuit and calibration gas circuit is carried out the gas purity transmitter of Treatment Analysis, the sampling gas circuit is provided with the sampling gas admittance valve, and is provided with the calibration gas admittance valve in the calibration gas circuit.During calibration, open the calibration gas admittance valve, close the sampling gas admittance valve, the calibration air-flow is successively by taking into account the gas purity transmitter by filtering pressure reducing valve, pressure maintaining valve, flow, and is emptying by the air outlet valve that links to each other with the purity transmitter at last.And when measuring, open first the sampling gas admittance valve, close the calibration gas admittance valve, allow sampling air flow successively by taking into account the gas purity transmitter by pressure maintaining valve, flow, the air outlet valve that links to each other by the exhausr port with the gas purity transmitter at last is emptying, and the hydrogen purity of the sampling gas that is measured by the output of gas purity transmitter.In the hydrogen cooled generator technical field, need generator is overhauled, need during maintenance first the generator machine room to be connected with atmosphere, after the oxygen in machine room reaches standard, just can overhaul.And after maintenance is finished, need in machine room, to be filled with substitution gas so that the air in the machine room is emptying from the machine room bottom first, usually select the heavier inert gas of carbon dioxide or nitrogen equimolecular weight ratio air molecule weight as substitution gas, and then slave roof section is filled with hydrogen so that the inert gas in the machine room is emptying in machine room.But when after the hydrogen cooled generator maintenance is finished, also using the inert gas replacement air, the purity that need to measure at the top of hydrogen cooled generator inert gas is emptying with air to guarantee, and when in hydrogen cooled generator, filling hydrogen, need to measure in the bottom of hydrogen cooled generator the purity of hydrogen to guarantee peril can not occur.But only be furnished with single sampling gas interface on the above-mentioned hydrogen analyser intelligence, integrated not high, when measuring different sampling gas, need to install and remove the different sampling gas circuit of docking, so, not only operate cumbersome, also make mistakes easily, and then affect measurement result, affect the job security of hydrogen cooled generator.
The utility model content
The purpose of this utility model is to provide the high hydrogen cooled generator of a kind of integrated degree with work gas purity pick-up unit, and is low and need to install and remove the different sampling air-path interface of docking and the technical matters that causes makeing mistakes easily when measuring different sampling gas to solve the integrated degree of hydrogen analyser of the prior art.
For achieving the above object, hydrogen cooled generator provided by the utility model with the technical scheme of work gas purity pick-up unit is: hydrogen cooled generator work gas purity pick-up unit, comprise the gas purity analyser, this gas purity analyser comprise have into, the gas purity transmitter of exhausr port and to analytical sampling gas circuit and the calibration gas circuit of the air intake opening of gas purity transmitter input gas, described working gas purity detecting device also comprises for being connected with region, hydrogen cooled generator top and carries out the top sample gas circuit of sampling and measuring and be used for being connected with region, hydrogen cooled generator bottom and carry out the bottom sampling gas circuit of sampling and measuring with the hydrogen to this zone with the substitution gas to this zone, the inlet end of described analytical sampling gas circuit is communicated with described top sample gas circuit and described bottom sampling gas circuit by two-position three-way valve, and two-position three-way valve comprises gas outlet and two air intake openings that are connected with described top sample gas circuit and bottom sampling gas circuit respectively that connect with the analytical sampling gas circuit.
Be serially connected with in the hydrogen cooled generator machine room, being filled with substitution gas with the displacement gas gas circuit of displaced air on the described bottom sampling gas circuit, be serially connected with on the described top sample gas circuit for when maintenance injecting compressed air in the described machine room the pressurized air gas circuit and be used in described machine room, injecting the hydrogen source gas gas circuit of hydrogen, described top sample gas circuit and bottom sampling gas circuit respectively are connected with the intermediate connection gas circuit by a switch valve, and the intermediate connection gas circuit is connected with the emptying gas circuit that is connected with ambient atmosphere by a switch valve.
Gas purity transmitter in the described gas purity analyser is furnished with two covers, two cover gas purity transmitters are respectively main gas purity transmitter and auxiliary gas purity transmitter, the air intake opening of two cover gas purity transmitters is communicated with respectively a two-position three-way valve, two two-position three-way valves include the air intake opening that the gas outlet that is connected with the air intake opening of corresponding gas purity transmitter and two connect with analytical sampling gas circuit and calibration gas circuit respectively, the exhausr port of described two cover gas purity transmitters is serially connected with respectively the exhaust line that is connected for described emptying gas circuit, is equipped with switch valve on each exhaust line.
The signal output part of the described gas purity transmitter of every cover conducts electricity respectively and is connected with the purity indicator gauge.
Described pressurized air gas circuit is provided with the switch valve for this gas path on-off of control, and is serially connected with air strainer in the pressurized air gas circuit.
Be serially connected with for the hydrogen filter that hydrogen is processed, hydrogen reduction valve on the described hydrogen source gas gas circuit and be used for the pressure of this hydrogen source gas branch road hydrogen, hydrogen source pressure unit, hydrogen flowing quantity transmitter and the Hydrogen Vapor Pressure table that flow detects.
Also be serially connected with safety valve on the described hydrogen source gas gas circuit.
Be serially connected with the Hydrogen Vapor Pressure transmitter on the described top sample gas circuit.
The beneficial effects of the utility model are: hydrogen cooled generator provided by the utility model uses the analytical sampling gas circuit of the gas purity analyser on the work gas purity pick-up unit by two-position three-way valve and described top sample gas circuit and described bottom sampling gas circuit, when finishing in maintenance and during with the air in the substitution gas displacement machine room, the two-bit triplet valve events, so that the top sample gas circuit is connected with the analytical sampling gas circuit by two-position three-way valve, by the gas purity analyser gas of the top area of hydrogen gas generation machine is carried out sample analysis, guarantee that substitution gas is emptying with the air in the machine room, and when needs in the machine room inputting hydrogen so that substitution gas is emptying, the two-bit triplet valve events, so that bottom sampling gas circuit is connected with the analytical sampling gas circuit by two-position three-way valve, by the gas purity analyser gas of the bottom section of hydrogen gas generation machine is carried out sample analysis, guarantee that hydrogen is emptying with the inert gas in the machine room, guarantee that the hydrogen purity in the hydrogen cooled generator machine room meets the demands.Above-mentioned working gas purity detecting device is by switching the two-position three-way valve realization to the sample analysis of zones of different gas with various, and whole hand-over process operations is simple, be not easy to make mistakes, but the work efficiency of Effective Raise purity detecting device.
Description of drawings
Fig. 1 is the structure principle chart (gas flow direction when arrow is depicted as work among the figure) of a kind of embodiment of hydrogen cooled generator working gas purity detecting device provided by the utility model.
Embodiment
As shown in Figure 1, the hydrogen cooled generator embodiment of work gas purity pick-up unit, hydrogen cooled generator among this embodiment work gas purity pick-up unit, comprise gas purity analyser 1, this gas purity analyser 1 comprise have into, the gas purity transmitter of exhausr port and to analytical sampling gas circuit 14 and the calibration gas circuit 19 of the air intake opening of gas purity transmitter input gas, mainly be with the difference of prior art: this working gas purity detecting device also comprises for being connected with region, hydrogen cooled generator top and carries out the top sample gas circuit 5 of sampling and measuring and be used for being connected with region, hydrogen cooled generator bottom and carry out the bottom sampling gas circuit 6 of sampling and measuring with the hydrogen to this zone with the substitution gas to this zone, be serially connected with Hydrogen Vapor Pressure transmitter 28 on the described top sample gas circuit 5, the inlet end of described analytical sampling gas circuit 14 is connected with described top sample gas circuit 5 and described bottom sampling gas circuit 6 by two-position three-way valve 11, two-position three-way valve 11 comprises gas outlet and two air intake openings that connect with the analytical sampling gas circuit, and two air intake openings are the substitution gas sampling gas air intake opening 111 that is connected with described top sample gas circuit respectively and the hydrogen sampling gas air intake opening 112 that is connected with bottom sampling gas circuit.Be serially connected with in the hydrogen cooled generator machine room, being filled with inert gas with the displacement gas gas circuit 3 of displaced air on the described bottom sampling gas circuit 6, be serially connected with switch valve 31 on this displacement gas gas circuit 3, be serially connected with the pressurized air gas circuit 4 of being used for when maintenance of being arranged in parallel injecting compressed air in the described machine room on the described top sample gas circuit 5 and be used in described machine room, injecting the hydrogen source gas gas circuit 2 of hydrogen, described top sample gas circuit 5 is connected with intermediate connection gas circuit 7 by switch valve 51, bottom sampling gas circuit 6 is connected with intermediate connection gas circuit 7 by switch valve 61, and intermediate connection gas circuit 7 is connected with the emptying gas circuit 9 that is connected with ambient atmosphere by switch valve 71.Described pressurized air gas circuit 4 is provided with the switch valve for this gas path on-off of control, and is serially connected with air strainer 41 in the pressurized air gas circuit.Be serially connected with on the described hydrogen source gas gas circuit 2 for the hydrogen filter 21 that hydrogen is processed, hydrogen reduction valve 24 and reach and be used for the pressure of this hydrogen source gas branch road hydrogen, hydrogen source pressure unit 23, hydrogen flowing quantity transmitter 26 and the Hydrogen Vapor Pressure table 25 that flow detects.
In the present embodiment, gas purity transmitter in the gas purity analyser is furnished with two covers, two cover gas purity transmitters are respectively main gas purity transmitter 100 and auxiliary gas purity transmitter 200, the air intake opening of two cover gas purity transmitters is communicated with respectively a two-position three-way valve, two two-position three-way valves are respectively the first two-position three-way valve 12 and the second two-position three-way valve 13, two two-position three-way valves include the air intake opening that the gas outlet that connects with the air intake opening of corresponding gas purity transmitter and two connect with analytical sampling gas circuit 14 and calibration gas circuit 19 respectively, the air intake opening of two-position three-way valve respectively with sampling gas air intake opening and calibration gas air intake opening, the exhausr port of described two cover gas purity transmitters is serially connected with respectively the exhaust line that is connected for described emptying gas circuit 9, is equipped with switch valve on each exhaust line.The signal output part of the described gas purity transmitter of every cover conducts electricity respectively and is connected with purity indicator gauge 17.
In the present embodiment, on hydrogen source gas gas circuit 2, also be serially connected with safety valve 22.
When above-mentioned hydrogen cooled generator is worked with work gas purity pick-up unit, when needing maintenance, in machine room, suppress air by top sample gas circuit 5 by pressurized air gas circuit 4, after maintenance is finished, inject carbon dioxide as substitution gas by displacement gas gas circuit 3 in the machine room by bottom sampling gas circuit 6, by carbon dioxide that the air in the machine room is emptying, at this moment, two position three-way valve 11 actions, so that top sample gas circuit 5 is connected with the analytical sampling gas circuit by two-position three-way valve 11, by the gas purity analyser gas of the top area of hydrogen gas generation machine is carried out sample analysis, guarantee that inert gas is emptying with the air in the machine room.Then in machine room, inject hydrogen by top sample gas circuit 5 by hydrogen source gas gas circuit 2, and by hydrogen that carbon dioxide is emptying, at this moment, two position three-way valve 11 actions, gas circuit 6 is connected with the analytical sampling gas circuit by the hydrogen sampling air intake opening 112 of two-position three-way valve so that take a sample in the bottom, by the gas purity analyser gas of the bottom section of hydrogen engine is carried out sample analysis, guarantee that hydrogen is emptying with the carbon dioxide in the machine room, guarantee the hydrogen purity in the machine room, and then guarantee the trouble free service of hydrogen gas generation machine.
In the above-described embodiments, problem for the maintenance that prevents from having to whole device is pulled down after the gas purity transmitter from going wrong, gas purity in the above-described embodiments with in be provided with main gas purity transmitter 100 and auxiliary gas purity transmitter 200, when main gas purity transmitter is calibrated, 12 actions of the first two-position three-way valve make the calibration gas air intake opening of this two-position three-way valve be connected with the gas outlet, at this moment, calibration gas circuit 16 is connected with main gas purity transmitter 100, calibration gas enters in the main gas purity transmitter, and then calibration gas is drained through the exhausr port of main gas purity transmitter.If main gas purity transmitter is working properly, can use this main gas purity transmitter to carry out the measurement of gas purity.If in calibration or measuring process, find main gas purity transmitter cisco unity malfunction, close main gas purity transmitter this moment, open auxiliary gas purity transmitter, and adjust accordingly the second two-position three-way valve 13 and two-position three-way valve 11 to realize calibration and to detect to the sampling hydrogen of region, hydrogen cooled generator top and to the sampling of the sampling hydrogen of region, hydrogen cooled generator bottom, whole calibration, testing process are substantially the same with the course of work of main gas purity transmitter, do not repeat them here.
The hydrogen cooled generator that present embodiment provides can guarantee that with work gas purity measurement mechanism working gas purity determination device can work in the same old way after a cover gas purity transmitter goes wrong.Simultaneously, can also be to the detection of taking a sample of hydrogen cooled generator top and bottom, and then improve accuracy of detection to hydrogen cooled generator work, effectively guarantee the normal operation of hydrogen cooled generator.
Claims (8)
1. hydrogen cooled generator is with work gas purity pick-up unit, comprise the gas purity analyser, this gas purity analyser comprise have into, the gas purity transmitter of exhausr port and to analytical sampling gas circuit and the calibration gas circuit of the air intake opening of gas purity transmitter input gas, it is characterized in that: described working gas purity detecting device also comprises for being connected with region, hydrogen cooled generator top and carries out the top sample gas circuit of sampling and measuring and be used for being connected with region, hydrogen cooled generator bottom and carry out the bottom sampling gas circuit of sampling and measuring with the hydrogen to this zone with the substitution gas to this zone, the inlet end of described analytical sampling gas circuit is communicated with described top sample gas circuit and described bottom sampling gas circuit by two-position three-way valve, and two-position three-way valve comprises gas outlet and two air intake openings that are connected with described top sample gas circuit and bottom sampling gas circuit respectively that connect with the analytical sampling gas circuit.
2. hydrogen cooled generator according to claim 1 is with work gas purity pick-up unit, it is characterized in that: be serially connected with in the hydrogen cooled generator machine room, being filled with substitution gas with the displacement gas gas circuit of displaced air on the described bottom sampling gas circuit, be serially connected with on the described top sample gas circuit for when maintenance injecting compressed air in the described machine room the pressurized air gas circuit and be used in described machine room, injecting the hydrogen source gas gas circuit of hydrogen, described top sample gas circuit and bottom sampling gas circuit respectively are connected with the intermediate connection gas circuit by a switch valve, and the intermediate connection gas circuit is connected with the emptying gas circuit that is connected with ambient atmosphere by a switch valve.
3. hydrogen cooled generator according to claim 2 is with work gas purity pick-up unit, it is characterized in that: the gas purity transmitter in the described gas purity analyser is furnished with two covers, two cover gas purity transmitters are respectively main gas purity transmitter and auxiliary gas purity transmitter, the air intake opening of two cover gas purity transmitters is communicated with respectively a two-position three-way valve, two two-position three-way valves include the air intake opening that the gas outlet that is connected with the air intake opening of corresponding gas purity transmitter and two connect with analytical sampling gas circuit and calibration gas circuit respectively, the exhausr port of described two cover gas purity transmitters is serially connected with respectively the exhaust line that is connected for described emptying gas circuit, is equipped with switch valve on each exhaust line.
4. hydrogen cooled generator according to claim 3 is with work gas purity pick-up unit, and it is characterized in that: the signal output part of the described gas purity transmitter of every cover conducts electricity respectively and is connected with the purity indicator gauge.
According to claim 2 or 3 or 4 described hydrogen cooled generators with work gas purity pick-up units, it is characterized in that: described pressurized air gas circuit is provided with the switch valve for this gas path on-off of control, and is serially connected with air strainer in the pressurized air gas circuit.
According to claim 2 or 3 or 4 described hydrogen cooled generators with work gas purity pick-up units, it is characterized in that: be serially connected with for the hydrogen filter that hydrogen is processed, hydrogen reduction valve on the described hydrogen source gas gas circuit and be used for the pressure of this hydrogen source gas branch road hydrogen, hydrogen source pressure unit, hydrogen flowing quantity transmitter and the Hydrogen Vapor Pressure table that flow detects.
7. hydrogen cooled generator according to claim 6 is characterized in that: also be serially connected with safety valve on the described hydrogen source gas gas circuit with work gas purity pick-up unit.
According to claim 2 or 3 or 4 described hydrogen cooled generators with work gas purity pick-up units, it is characterized in that: be serially connected with the Hydrogen Vapor Pressure transmitter on the described top sample gas circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507607 CN202814952U (en) | 2012-09-29 | 2012-09-29 | Working gas purity detection device for hydrogen-cooled generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507607 CN202814952U (en) | 2012-09-29 | 2012-09-29 | Working gas purity detection device for hydrogen-cooled generator |
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| Publication Number | Publication Date |
|---|---|
| CN202814952U true CN202814952U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220507607 Expired - Lifetime CN202814952U (en) | 2012-09-29 | 2012-09-29 | Working gas purity detection device for hydrogen-cooled generator |
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| Country | Link |
|---|---|
| CN (1) | CN202814952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865928A (en) * | 2015-03-28 | 2015-08-26 | 韩少卿 | Monitoring system of cooling medium in generator and method thereof |
| CN106526045A (en) * | 2016-08-30 | 2017-03-22 | 新疆广陆能源科技股份有限公司 | Novel chromatographic instrument gas path purification device |
-
2012
- 2012-09-29 CN CN 201220507607 patent/CN202814952U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865928A (en) * | 2015-03-28 | 2015-08-26 | 韩少卿 | Monitoring system of cooling medium in generator and method thereof |
| CN106526045A (en) * | 2016-08-30 | 2017-03-22 | 新疆广陆能源科技股份有限公司 | Novel chromatographic instrument gas path purification device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee after: GLTECH Co.,Ltd. Address before: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee before: ZHEJIANG GUANGLI TECH DEVELOPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
|
| CX01 | Expiry of patent term |