CN203971783U - Formaldehyde gas generating means - Google Patents
Formaldehyde gas generating means Download PDFInfo
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- CN203971783U CN203971783U CN201420408705.2U CN201420408705U CN203971783U CN 203971783 U CN203971783 U CN 203971783U CN 201420408705 U CN201420408705 U CN 201420408705U CN 203971783 U CN203971783 U CN 203971783U
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Abstract
The utility model relates to a kind of formaldehyde gas generating means, comprise housing, described housing is provided with air inlet, gas mouth and exhaust outlet, described air inlet connects pressure-reducing valve, described pressure-reducing valve connects scarvenger device, described scarvenger device quality of connection flowmeter, described mass flowmenter connects respectively the first rotor flowmeter and the second spinner flowmeter, described the first rotor flowmeter connects diffusion cell, in described diffusion cell, be provided with anemostat and osmos tube, described diffusion cell connects cracker, described cracker is all connected mixed air vessel with the second spinner flowmeter, described mixed air vessel connects respectively first row air valve and second row air valve, described first row air valve connects gas mouth, described second row air valve connects exhaust outlet, above-described each device all connects by tracheae.The beneficial effects of the utility model are: the utility model can produce the formaldehyde gas of steady concentration, and precision is high, and whole apparatus structure compactness is easy to use, and the impact that changed by ambient temperature is little.
Description
Technical field
The utility model relates to gas generator field, is specifically related to a kind of formaldehyde gas generating means for generation of multiple concentration formaldehyde gas.
Background technology
Dynamic air-distributing device for formaldehyde standard gas need to be according to the instructions for use of various volatility, corrosivity, absorbing gas osmos tube or anemostat and is custom-designed, is the ideal equipment of department's preparation standard mists such as environmental protection, instrument production, oil, chemical industry, metallurgy, scientific research, national defence metrology.
Utility model content
The purpose of this utility model is to provide a kind of formaldehyde gas generating means, realizes the formaldehyde gas that produces steady concentration.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of formaldehyde gas generating means, comprise housing, described housing is provided with air inlet, gas mouth and exhaust outlet, described air inlet connects pressure-reducing valve, described pressure-reducing valve connects scarvenger device, described scarvenger device quality of connection flowmeter, described mass flowmenter connects respectively the first rotor flowmeter and the second spinner flowmeter, described the first rotor flowmeter connects diffusion cell, in described diffusion cell, be provided with anemostat and osmos tube, described diffusion cell connects cracker, described cracker is all connected mixed air vessel with the second spinner flowmeter, described mixed air vessel connects respectively first row air valve and second row air valve, described first row air valve connects gas mouth, described second row air valve connects exhaust outlet, above-described each device all connects by tracheae.
Further, described diffusion cell is located in Water Tank with Temp.-controlled.
Further, described anemostat is metaformaldehyde anemostat.
Further, described mixed air vessel is threeway blender.
The beneficial effects of the utility model are: the utility model can produce the formaldehyde gas of steady concentration, and precision is high, and whole apparatus structure compactness is easy to use, and the impact that changed by ambient temperature is little.
Brief description of the drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the pipeline schematic diagram of formaldehyde gas generating means described in the utility model embodiment.
In figure:
1, housing; 2, air inlet; 3, gas mouth; 4, exhaust outlet; 5, pressure-reducing valve; 6, scarvenger device; 7, mass flowmenter; 8, the first rotor flowmeter; 9, the second spinner flowmeter; 10, diffusion cell; 11, Water Tank with Temp.-controlled; 12, cracker; 13, mixed air vessel; 14, first row air valve; 15, second row air valve; 16, steel cylinder.
Detailed description of the invention
As shown in Figure 1, a kind of formaldehyde gas generating means described in the utility model embodiment, comprise housing 1, the both sides of described housing 1 are respectively equipped with air inlet 2 and gas mouth 3, the side of described gas mouth 3 is provided with exhaust outlet 4, be equipped with that pressure is greater than the compressed air of 0.5Mpa or the steel cylinder of high pure nitrogen 16 connects described air inlet 2 by tracheae, described air inlet 2 connects pressure-reducing valve 5 by tracheae, gases at high pressure enter in instrument by air inlet 2, then through the pressure-reducing valve 5 0.2～0.3Mpa that reduces pressure.
Described pressure-reducing valve 5 connects scarvenger device 6 by tracheae, be used for purification for gas, prevent that gas is because preventing from for a long time causing gas oxidation or impure, thereby affect the concentration that gas mixes, described scarvenger device 6 is by tracheae quality of connection flowmeter 7, described mass flowmenter 7 connects respectively the first rotor flowmeter 8 and the second spinner flowmeter 9 by tracheae, described the first rotor flowmeter 8 connects diffusion cell 10 by tracheae, described diffusion cell 10 is located in Water Tank with Temp.-controlled 11, Water Tank with Temp.-controlled adopts semiconductor controlled silicon mode of heating, the temperature long-term stability of Water Tank with Temp.-controlled 11 is at 40 degree, can allow environment temperature to have a greater change, in described diffusion cell 10, be provided with anemostat and osmos tube, described anemostat is metaformaldehyde anemostat, what diffuse out is metaformaldehyde molecule.
Described diffusion cell 10 connects cracker 12 by tracheae, through cat cracker 12, be decomposed into formaldehyde molecule completely, described cracker 12 is all connected mixed air vessel 13 by tracheae with the second spinner flowmeter 9, described mixed air vessel 13 is threeway blender, described mixed air vessel 13 connects respectively first row air valve 14 and second row air valve 15 by tracheae, described first row air valve 14 connects gas mouth 3 by tracheae, discharge the calibrating gas of desired concn, described second row air valve 15 connects exhaust outlet 4 by tracheae, for discharging unnecessary gas.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (4)
1. a formaldehyde gas generating means, comprise housing, described housing is provided with air inlet, gas mouth and exhaust outlet, it is characterized in that: described air inlet connects pressure-reducing valve, described pressure-reducing valve connects scarvenger device, described scarvenger device quality of connection flowmeter, described mass flowmenter connects respectively the first rotor flowmeter and the second spinner flowmeter, described the first rotor flowmeter connects diffusion cell, in described diffusion cell, be provided with anemostat and osmos tube, described diffusion cell connects cracker, described cracker is all connected mixed air vessel with the second spinner flowmeter, described mixed air vessel connects respectively first row air valve and second row air valve, described first row air valve connects gas mouth, described second row air valve connects exhaust outlet, above-described each device all connects by tracheae.
2. formaldehyde gas generating means according to claim 1, is characterized in that: described diffusion cell is located in Water Tank with Temp.-controlled.
3. formaldehyde gas generating means according to claim 1, is characterized in that: described anemostat is metaformaldehyde anemostat.
4. formaldehyde gas generating means according to claim 2, is characterized in that: described mixed air vessel is threeway blender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408705.2U CN203971783U (en) | 2014-07-23 | 2014-07-23 | Formaldehyde gas generating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408705.2U CN203971783U (en) | 2014-07-23 | 2014-07-23 | Formaldehyde gas generating means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203971783U true CN203971783U (en) | 2014-12-03 |
Family
ID=51969258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420408705.2U Expired - Fee Related CN203971783U (en) | 2014-07-23 | 2014-07-23 | Formaldehyde gas generating means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203971783U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152825A (en) * | 2015-10-16 | 2015-12-16 | 中国矿业大学 | Compressed gas generation device based on single-component propellant catalytic decomposition |
| CN105334299A (en) * | 2015-12-15 | 2016-02-17 | 北京雪迪龙科技股份有限公司 | Standard gas generation system and method for dynamically monitoring standard gas |
| CN107727807A (en) * | 2017-11-23 | 2018-02-23 | 天津商业大学 | A kind of novel methylene generator |
-
2014
- 2014-07-23 CN CN201420408705.2U patent/CN203971783U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152825A (en) * | 2015-10-16 | 2015-12-16 | 中国矿业大学 | Compressed gas generation device based on single-component propellant catalytic decomposition |
| CN105152825B (en) * | 2015-10-16 | 2018-10-16 | 中国矿业大学 | Compressed gas generation device based on single-component propellant catalytic decomposition |
| CN105334299A (en) * | 2015-12-15 | 2016-02-17 | 北京雪迪龙科技股份有限公司 | Standard gas generation system and method for dynamically monitoring standard gas |
| CN107727807A (en) * | 2017-11-23 | 2018-02-23 | 天津商业大学 | A kind of novel methylene generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161124 Address after: 101100 Beijing city Tongzhou District Lu Yuan South Street No. 1093 2-966 Patentee after: Beijing Tiandi Environment Technology Co., Ltd. Address before: 101111 Beijing City, Taiwan town Tongzhou District Mai Zhuang Road No. 8 Patentee before: BEIJING ZHITIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20200723 |