CN203365192U - Gas catalytic oxidation furnace for monitoring and sampling of <14>C of air - Google Patents
Gas catalytic oxidation furnace for monitoring and sampling of <14>C of air Download PDFInfo
- Publication number
- CN203365192U CN203365192U CN 201320404187 CN201320404187U CN203365192U CN 203365192 U CN203365192 U CN 203365192U CN 201320404187 CN201320404187 CN 201320404187 CN 201320404187 U CN201320404187 U CN 201320404187U CN 203365192 U CN203365192 U CN 203365192U
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- Prior art keywords
- oxidation furnace
- air
- catalysis oxidation
- gas
- gas catalysis
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Abstract
The utility model belongs to the technical field of air monitoring and discloses a gas catalytic oxidation furnace for monitoring and sampling of <14>C of air. A gas inlet and a gas outlet are formed in the upper end and the lower end of the oxidation furnace respectively; two or more insulated heating pipes are distributed in a furnace body uniformly; the two ends of each insulated heating pipe stretch out of the furnace body; electric heating wires are placed in the insulated heating pipes; and the furnace body is full of a catalyst. The catalytic oxidation furnace has the characteristic that the catalyst is heated quickly and uniformly.
Description
Technical field
The utility model belongs to the air monitering technical field, is specifically related to a kind of for air
14the gas catalysis oxidation furnace of C monitoring sampling.
Background technology
In environs radiation monitoring, in air
14the C monitoring is an important environs radiation monitoring project, and air sampling is a crucial link, airborne
14c exists with carbon dioxide, carbon monoxide, methane and other compound forms usually.In air
14the method of C sampling is, with aspiration pump, air is passed into to the gas catalysis oxidation furnace, the carbon compounds such as carbon monoxide, methane in the gas catalysis oxidation furnace, be converted into carbon dioxide through catalytic oxidation, gas, by after the catalytic oxidation stove, passes into aqueous slkali, with aqueous slkali, absorbs the carbon dioxide in gas, to alkali lye further process, sample preparation, dodge spectrometer with liquid and measure in sample
14c.
General gas catalysis oxidation furnace is all that catalyzer is placed in stove, in the heating of the stove outside.Because heat is that ecto-entad progressively conducts, so catalyzer is heated inhomogeneously, and the temperature of catalyzer is also inhomogeneous.To the gas catalysis oxidation, inhomogeneous when catalyst temperature, will affect speed and the effect of gas catalysis oxidation, therefore need to a kind ofly can make the uniform gas catalysis oxidation furnace of catalyzer heating-up temperature.
Summary of the invention
(1) utility model purpose
According to the existing problem of prior art, the utility model provides a kind of and has made that the catalyzer firing rate is fast, a kind of gas catalysis oxidation furnace of homogeneous heating.
(2) technical scheme
In order to solve the existing problem of prior art, the technical scheme that the utility model provides is as follows:
A kind of for air
14the gas catalysis oxidation furnace of C monitoring sampling, the upper/lower terminal of this oxidation furnace is respectively equipped with air intake opening and gas outlet, is uniform-distribution with 2 or 2 above insulation heating pipes in body of heater, and stretch out outside body of heater at the two ends of insulation heating pipe, places heating wire in insulation heating pipe; Catalyzer abrim in body of heater.
Preferably, the body of heater of gas catalysis oxidation furnace is cylindrical.
Preferably, the material of described insulation heating pipe and gas catalysis oxidation furnace body of heater is quartzy.
Preferably, thermopair is placed at the center of gas catalysis oxidation furnace, and thermopair is connected with temperature controller.
(3) beneficial effect
The gas catalysis oxidation furnace that adopts the utility model to provide, this oxidation furnace heats catalyzer in stove, abandoned traditional mode at the stove external heat, can improve on the one hand the utilization ratio of heat and also can make on the one hand the catalyzer heating-up temperature in stove be consistent.
The accompanying drawing explanation
Fig. 1 is gas catalysis oxidation furnace schematic diagram;
1. air intake opening; 2. gas catalysis oxidation furnace; 3. electrical heating wire; 4. catalyzer; 5. insulation heating pipe; 6. temperature controller; 7. gas outlet; 8. thermopair.
Embodiment
Below in conjunction with specification drawings and specific embodiments, the utility model is further elaborated.
A kind of for air
14the gas catalysis oxidation furnace of C monitoring sampling, body of heater is cylindrical, material is quartzy, the upper/lower terminal of this oxidation furnace is respectively equipped with air intake opening and gas outlet, being uniform-distribution with 2 or 2 above materials in body of heater is quartzy insulation heating pipe, stretch out outside body of heater at the two ends of insulation heating pipe, places heating wire in insulation heating pipe; Pt-Pd-Al abrim in body of heater
2o
3catalyzer.Thermopair is placed at the center of gas catalysis oxidation furnace, and thermopair is connected with temperature controller.
Utilize this device to carry out
14the method of operating that C collects is:
By electrical heating wire, catalyzer is heated, heating-up temperature is 400 ~ 600 ℃, inserts the temperature that thermopair is used for responding to catalyzer in the middle of body of heater, and thermopair is connected with temperature controller, by temperature controller, controls heating-up temperature.With aspiration pump, air is pumped in the gas catalysis stove from air intake opening, in the gas catalysis stove, the carbon compound such as carbon monoxide, methane is converted into carbon dioxide through catalytic oxidation, gas passes into aqueous slkali after by the catalytic oxidation stove, absorb the carbon dioxide in gas with aqueous slkali, to aqueous slkali further process, sample preparation, dodge spectrometer with liquid and measure in sample
14c.
Utilize this device to complete in air sample
14the collection experiment of C, the collecting effect ideal.
Claims (4)
1. one kind for air
14the gas catalysis oxidation furnace of C monitoring sampling, it is characterized in that, the upper/lower terminal of this oxidation furnace is respectively equipped with air intake opening and gas outlet, is uniform-distribution with 2 or 2 above insulation heating pipes in body of heater, stretch out outside body of heater at the two ends of insulation heating pipe, places heating wire in insulation heating pipe; Catalyzer abrim in body of heater.
2. according to claim 1 a kind of for air
14the gas catalysis oxidation furnace of C monitoring sampling is characterized in that the body of heater of described gas catalysis oxidation furnace is cylindrical.
3. according to claim 1 a kind of for air
14the gas catalysis oxidation furnace of C monitoring sampling is characterized in that the material of described insulation heating pipe and gas catalysis oxidation furnace body of heater is quartzy.
4. according to claim 1 a kind of for air
14the gas catalysis oxidation furnace of C monitoring sampling is characterized in that thermopair is placed at the center of gas catalysis oxidation furnace, and thermopair is connected with temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320404187 CN203365192U (en) | 2013-07-09 | 2013-07-09 | Gas catalytic oxidation furnace for monitoring and sampling of <14>C of air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320404187 CN203365192U (en) | 2013-07-09 | 2013-07-09 | Gas catalytic oxidation furnace for monitoring and sampling of <14>C of air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365192U true CN203365192U (en) | 2013-12-25 |
Family
ID=49812938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320404187 Expired - Lifetime CN203365192U (en) | 2013-07-09 | 2013-07-09 | Gas catalytic oxidation furnace for monitoring and sampling of <14>C of air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365192U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822811A (en) * | 2014-02-28 | 2014-05-28 | 中国地质大学（武汉） | Pretreatment method and device for measuring 14C abundance of organic compound type sample |
| CN109404940A (en) * | 2018-10-19 | 2019-03-01 | 浙江工业大学 | A kind of catalyst converter of quick start organic exhaust gas degradation |
| CN114113453A (en) * | 2021-12-06 | 2022-03-01 | 北京大学 | Device, system and method for detecting content of total organic carbon in gas |
-
2013
- 2013-07-09 CN CN 201320404187 patent/CN203365192U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822811A (en) * | 2014-02-28 | 2014-05-28 | 中国地质大学（武汉） | Pretreatment method and device for measuring 14C abundance of organic compound type sample |
| CN103822811B (en) * | 2014-02-28 | 2016-01-27 | 中国地质大学（武汉） | A kind of test organism class sample 14the pre-treating method of C abundance and equipment |
| CN109404940A (en) * | 2018-10-19 | 2019-03-01 | 浙江工业大学 | A kind of catalyst converter of quick start organic exhaust gas degradation |
| CN114113453A (en) * | 2021-12-06 | 2022-03-01 | 北京大学 | Device, system and method for detecting content of total organic carbon in gas |
| CN114113453B (en) * | 2021-12-06 | 2023-09-22 | 北京大学 | Apparatus, system and method for detecting total organic carbon content in gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |