CN2743835Y - Working gas source supplying device of hydrocarbon compound analyzer for air separation - Google Patents
Working gas source supplying device of hydrocarbon compound analyzer for air separation Download PDFInfo
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- CN2743835Y CN2743835Y CN 200420107526 CN200420107526U CN2743835Y CN 2743835 Y CN2743835 Y CN 2743835Y CN 200420107526 CN200420107526 CN 200420107526 CN 200420107526 U CN200420107526 U CN 200420107526U CN 2743835 Y CN2743835 Y CN 2743835Y
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- hydrogen
- air
- reburner
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- hydrocarbon
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Abstract
The utility model provides the working gas source supplying device of a hydrocarbon compound analyzer for air separation, comprising a hydrogen source, a hydrogen supply pipeline, a compressed air source, and an air transport pipeline. The hydrogen source comprises two parallel hydrogen cylinders. The compressed air source is a molecular sieve in an air separation device. A filtration pressure reducing valve, a converter, a purifier and a thermostat are arranged in the air transport pipeline, wherein, the inlet end of the filtration pressure reducing valve is communicated with the molecular sieve, and the outlet end is connected with the inlet end of the converter; the outlet end of the converter is connected with the inlet end of the purifier; the outlet end of the purifier is communicated with the analyzer of hydrocarbon; the thermostat and the converter are connected. The working air source supply device of the analyzer of hydrocarbon of the utility model can continuously supply the working air source of high quality for the analyzer, which raises the measuring continuity, the accuracy and the stability of the analyzer.
Description
Technical field
The utility model relates to a kind of analytical and testing instrument, particularly a kind of work source of the gas generator that is applied to the hydrocarbon measuring instrument on the air separation unit tower.
Background technology
In the operational process of sky branch (air separation) device, must carry out online check and analysis to the impurity content in the liquid oxygen, be strictly on guard against that it exceeds standard to cause danger.Wherein the easiest impurity of causing danger is various hydrocarbons, comprises hydrocarbons such as methane, acetylene, ethene, and its total hydrocarbon maximum acceptable concentration (MPC) counts 500 * 10 with methane
-6Volume as surpassing this concentration, just has the danger of blasting, and this all has a precedent international and domestic.Therefore the online check and analysis that the impurity content in the liquid oxygen is carried out accurately and timely seem very important, and this work is at present all carried out by means of hydrocarbon measuring instrument.During the hydrocarbon measuring instrument operate as normal, must use pressurized air and flammable hydrogen as the work source of the gas, therefore set up a cover work source of the gas generator, it comprises sources of hydrogen, hydrogen delivery tube road, compressed air source and air delivery pipe road.The work source of the gas generator of prior art as shown in Figure 1, its sources of hydrogen is flammable hydrogen cylinder 11, compressed air source is a pneumatic accumulator 12, the two is communicated with hydrocarbon measuring instrument 3 by hydrogen delivery tube road 13 and air delivery pipe road 14 respectively.In actual applications, there is following subject matter in this work source of the gas generator: first bottled gas finite capacity, in case gas uses up, must change gas cylinder, so just cause the work source of the gas of on-line analysis to interrupt, force the instrument interruption of work, make the operation of air separation unit be in runaway condition, can't guarantee its safe operation; It two is to use bottled gas, and the composition of gas might be inconsistent, causes the hydrocarbon measuring instrument poor stability, brings harm for the safe operation of air separation unit; In addition, often also contain a spot of hydrocarbon impurity in the pressurized air commonly used, its content is usually 0.01～0.5 * 10
-6Volume provides the work source of the gas to understand the accuracy of impact analysis apparatus measuring value in this way, causes errors of analytical results.
Summary of the invention
The purpose of this utility model provides a kind of new hydrocarbon measuring instrument work source of the gas generator, to improve accuracy of measurement, continuity and the stability of analyser, guarantees the safe operation of air separation unit.
To achieve these goals, the utility model device has adopted following technical scheme: 1, a kind of air separation unit work source of the gas generator of hydrocarbon measuring instrument, comprise sources of hydrogen, the hydrogen delivery tube road, compressed air source and air delivery pipe road, wherein, described sources of hydrogen comprises two hydrogen cylinders that are connected in parallel on the described hydrogen delivery tube road, described compressed air source is the molecular sieve in the air separation unit, described air delivery pipe road is provided with filtering pressure reducing valve, reburner, clarifier and temperature controller, wherein, the entrance point of filtering pressure reducing valve is communicated with molecular sieve, its endpiece connects the entrance point of reburner, the endpiece of reburner connects the entrance point of clarifier, the endpiece of clarifier is communicated with hydrocarbon measuring instrument, and temperature controller links to each other with reburner.
Reasonable is in said apparatus, to be provided with electric heater, temperature element and hydrocarbon conversion catalyst in the described reburner.
Reasonablely be, in said apparatus, the 5A molecular sieve is equipped with on the top of described clarifier, and discolour silica gel is equipped with in the bottom.
Work source of the gas generator of the present utility model is provided with the use in parallel of two bottles of hydrogen, wherein one bottle with and another bottle is standby, when at the hydrogen working pressure of usefulness during less than 500KPa, the air-supplying valve of opening standby another bottle hydrogen can guarantee to provide continuously to analyser the work hydrogen of steady pressure.Next change out of use hydrogen cylinder, change new hydrogen cylinder, make it be in stand-by state, go round and begin again, can guarantee gas-break phenomenon can not occur.In addition, air source adopts the molecular sieve of continuous air feed, has solved effectively in the analyser work operational process because the problem that quits work that occurs dying and caused.Owing in the air delivery pipe road, be provided with equipment such as reburner, clarifier, temperature controller, the control air that enters analyser is carried out pre-service, in time removed hydrocarbon and aqueous vapor wherein, guaranteed to enter the quality of the control air of analyser effectively, the measuring accuracy and the accuracy that have improved instrument.In addition owing to adopt the outlet air of the molecular sieve in the air separation unit to replace bottled pressurized air as the work source of the gas, can guarantee to analyser provide continuously, stablize, high-quality control air, and saved the bottled compressed-air actuated buying expenses of use greatly.
Description of drawings
Fig. 1 is the synoptic diagram of the work source of the gas generator of prior art hydrocarbon measuring instrument;
Fig. 2 is the work source of the gas generator synoptic diagram of hydrocarbon measuring instrument of the present utility model;
Fig. 3 is the utility model air delivery pipe road figure.
Embodiment
Referring to Fig. 2, it shows the work source of the gas generator of the utility model hydrocarbon measuring instrument.Work source of the gas generator of the present utility model comprises flammable sources of hydrogen 21, compressed air source 22, hydrogen delivery tube road 23, air delivery pipe road 24.
Comprise two hydrogen cylinders 211,212 that are connected in parallel on the hydrogen delivery tube road 23 in the flammable sources of hydrogen 21.Compressed air source 22 directly adopts the molecular sieve in the air separation unit.Air delivery pipe road 24 (cooperating referring to Fig. 3) comprises filtering pressure reducing valve 241, reburner 242, clarifier 243, temperature controller 244 and corresponding connecting tube, wherein, the entrance point of filtering pressure reducing valve 241 is communicated with molecular sieve 22, its endpiece connects the entrance point of reburner 242, the endpiece of reburner 242 connects the entrance point of clarifier 243, and the endpiece of clarifier 243 is communicated with hydrocarbon measuring instrument 3.Be provided with electric heater 2421, temperature element 2422 and hydrocarbon conversion catalyst (not shown) in the reburner 242.Reburner 242 is mainly used to absorb the airborne hydrocarbon impurity as the work source of the gas, hydrocarbon conversion catalyst in the reburner is made by special alloy, having the hydrocarbon impurity decomposition and inversion is the effect of water and carbon dioxide, and its activationary temperature is 250～350 ℃.When using first, the control temperature of temperature controller 244 can be set in 300 ℃ of heating two hours, then working temperature be controlled at 200 ℃ of uses.5A molecular sieve (not shown) is equipped with on clarifier 243 tops, and discolour silica gel (not shown) is equipped with in the bottom.Its major function is further to absorb airborne moisture content.When discolour silica gel becomes shallow pink or represents that the absorbent function of clarifier lost efficacy when white from blueness, must carry out activation processing or replacing.During activation discolour silica gel is placed in the baking oven, was heated to 150 ℃ of constant temperature two hours, reduce to room temperature then and can use.Place it in during the molecular sieve activation and be heated to 300 ℃ of constant temperature in the muffle furnace two hours, reduce to room temperature then and can use.The external 220V AC power of the power end of temperature controller 244, its load side connects the well heater 2421 in the reburner 242.Be used to control the temperature in the reburner.For example when the temperature of temperature controller was set at 200 ℃, if the temperature in the reburner is lower than 200 ℃, temperature controller will begin heating by instruction heater, and the temperature in reburner is higher than 200 ℃, and temperature controller will stop heating by instruction heater.
Claims (3)
1, a kind of air separation unit work source of the gas generator of hydrocarbon measuring instrument, comprise sources of hydrogen, the hydrogen delivery tube road, compressed air source and air delivery pipe road, it is characterized in that, described sources of hydrogen comprises two hydrogen cylinders that are connected in parallel on the described hydrogen delivery tube road, described compressed air source is the molecular sieve in the air separation unit, described air delivery pipe road is provided with filtering pressure reducing valve, reburner, clarifier and temperature controller, wherein, the entrance point of filtering pressure reducing valve is communicated with molecular sieve, its endpiece connects the entrance point of reburner, the endpiece of reburner connects the entrance point of clarifier, the endpiece of clarifier is communicated with hydrocarbon measuring instrument, and temperature controller links to each other with reburner.
2, device according to claim 1 is characterized in that, is provided with electric heater, temperature element and hydrocarbon conversion catalyst in the described reburner.
3, device according to claim 1 is characterized in that, the 5A molecular sieve is equipped with on the top of described clarifier, and discolour silica gel is equipped with in the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107526 CN2743835Y (en) | 2004-10-29 | 2004-10-29 | Working gas source supplying device of hydrocarbon compound analyzer for air separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107526 CN2743835Y (en) | 2004-10-29 | 2004-10-29 | Working gas source supplying device of hydrocarbon compound analyzer for air separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2743835Y true CN2743835Y (en) | 2005-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420107526 Expired - Fee Related CN2743835Y (en) | 2004-10-29 | 2004-10-29 | Working gas source supplying device of hydrocarbon compound analyzer for air separation |
Country Status (1)
| Country | Link |
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| CN (1) | CN2743835Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621272A (en) * | 2011-12-08 | 2012-08-01 | 河北先河环保科技股份有限公司 | On-line analyzer for hydrocarbons in air |
| CN107399725A (en) * | 2016-05-19 | 2017-11-28 | 拜默实验设备（上海）股份有限公司 | A kind of nitrogen gas generator |
| CN107765720A (en) * | 2016-08-22 | 2018-03-06 | 宝山钢铁股份有限公司 | Oxygen processed always hydrocarbon analysis and Control system and control method |
-
2004
- 2004-10-29 CN CN 200420107526 patent/CN2743835Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621272A (en) * | 2011-12-08 | 2012-08-01 | 河北先河环保科技股份有限公司 | On-line analyzer for hydrocarbons in air |
| CN107399725A (en) * | 2016-05-19 | 2017-11-28 | 拜默实验设备（上海）股份有限公司 | A kind of nitrogen gas generator |
| CN107765720A (en) * | 2016-08-22 | 2018-03-06 | 宝山钢铁股份有限公司 | Oxygen processed always hydrocarbon analysis and Control system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051130 Termination date: 20131029 |