CN2805369Y - Gas recovery apparatus - Google Patents
Gas recovery apparatus Download PDFInfo
- Publication number
- CN2805369Y CN2805369Y CNU2005200230550U CN200520023055U CN2805369Y CN 2805369 Y CN2805369 Y CN 2805369Y CN U2005200230550 U CNU2005200230550 U CN U2005200230550U CN 200520023055 U CN200520023055 U CN 200520023055U CN 2805369 Y CN2805369 Y CN 2805369Y
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- gas concentration
- cabin
- circulating
- stifling
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Abstract
The utility model relates to a gas recovery apparatus which is used for the absorbent recovery treatment of the gas mixture of residual fumigant in a sealed fumigation space. The gas recovery apparatus comprises an absorbent tank and a closed cycle pipeline unit, wherein the interior of the absorbent tank is provided with at least a group of absorbent beds, and at least a part of absorbent material is attached on the absorbent beds; the closed cycle pipeline unit form a flow path with a closed cycle between the fumigation space and the absorbent tank. The utility model can adsorb most of fumigant adsorbed in residual fumigant gas, e. g. Methyl bromide, etc. Before the gas enter atmosphere. Therefore, fumigation operation is better for environment and safer. In addition, the absorbed fumigant can be recycled and reused.
Description
Technical field
The utility model relates to a kind of fumigating gas retracting device, relates in particular to a kind of gas concentration unit that utilizes again after the residual gas that freight all kinds is fumigated the methyl bromide gas of handling recycles that is mainly used in.
Background technology
Along with the reinforcement of various countries to the quarantine disinfection, people fumigate and will continue to be used widely as cost-effective quarantine disinfection method the growing interest of quarantine disinfection.At present, because the Celfume penetration performance is good, diffusion is rapid, sphere of action is wide, killing ability is strong, be fumigant the most commonly used in the stifling processing of the international animal and plant quarantine.
In September, 1987, United Nations Environment Programme held " Convention for the Protection of the Ozone Layer is about the Protocol on Chlorofluorocarbons plenipotentiary conference ", had worked out Montreal Protocol on Substances that Deplete the Ozone Layer (being called for short " protocol ").Contracting party as " protocol "; engraving them on one's mind according to obligated protection human health and the environment of taking appropriate measures of this book; make it avoid being enough to change the adverse effect that maybe may cause that mankind's activity caused that maybe may change ozone layer; the discharging meeting of recognizing some material of the whole world consumes greatly and otherwise changes ozone layer; may bring adverse effect to human health and environment; discharging may influence considering these materials to weather; recognize that the measure of being taked for the unlikely consume of protection ozone layer should be according to relevant scientific knowledge; and turn round and look at technology and economic consideration; be determined to take to control liberally the preventive measure of ODS whole world total emission volumn; with the protection ozone layer; final purpose then is the development according to scientific knowledge; consider technology and economic aspect; and engrave the development need of developing country on one's mind; thoroughly eliminate " discharging of ODS (being called for short ODS), the environment of preserving our planet.Subsequently, the content of " protocol " has obtained further revision, and in November, 1992, Celfume was formally listed in the controlled substance of " protocol ", progressively limits or stop using Celfume in the 4th Meeting of States Parties in Copenhagen.Generally speaking, except that quarantine and shipment and specific use, developed country is in the use of superseded Celfume in 2005, and the usage amount of developing country also will progressively be cut down.Superseded Celfume has been trend of the times.
According to the international convention " Montreal Protocol " of protection ozone layer, developed country uses the most of Celfume from superseded soil disinfection in 2005, and the usage amount of developing country also will be superseded substantially in 2015.But Celfume to be a kind of performance very good application is fumigant very widely, handles as quarantine in a lot of applications and can't find substitute technology or method so far.In order to protect atmospheric ozone layer, international community requires to reduce the usage amount of Celfume as far as possible, reduces the Celfume discharging and is very important.Perhaps improve the air-tightness of existing stifling facility, or before discharging, earlier Celfume is adsorbed recycling, in atmosphere, discharge Celfume to reduce.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of gas concentration unit, can before entering atmosphere, remaining fumigant gases such as Celfume adsorb the wherein fumigant of the overwhelming majority, more environmental protection is safer to make stifling operation, and can the fumigant that be absorbed is recycling.
To achieve these goals, the utility model provides a kind of gas concentration unit, is used for the absorption recycling of the admixture of gas of the remaining fumigant in the airtight stifling space, and its characteristics are that it comprises:
One absorbs the cabin, is provided with at least one group of absorbent bed in it, and at least a portion sorbing material adheres on it;
One closed cycle piping unit, it is in described stifling space and absorb the circulation path that is formed with closed circulation between the cabin.
Above-mentioned gas concentration unit, its characteristics are that described closed cycle piping unit comprises at least:
One circulating fan, its air inlet is communicated to described stifling space by an admission line;
One first circulating line, the one end is communicated with the air outlet of described circulating fan, and the other end is communicated with described absorption cabin;
One second circulating line, the one end is communicated with described absorption cabin, and the other end is communicated with described stifling space;
Wherein, in the described stifling space admixture of gas of remaining fumigant flow through described admission line, circulating fan air inlet, circulating fan air outlet, first circulating line, absorb cabin, second circulating line, stifling space, form the circulation path of described closed circulation.
Above-mentioned gas concentration unit, its characteristics are that the inlet that described first circulating line is communicated with described absorption cabin is positioned at the bottom in described absorption cabin, and the outlet that described second circulating line is communicated with described absorption cabin is positioned at the top in described absorption cabin.
Above-mentioned gas concentration unit, its characteristics are that described closed cycle piping unit also comprises:
One first two-way valve is arranged on the described admission line;
One second two-way valve is arranged on described second circulating line.
Above-mentioned gas concentration unit, its characteristics are that described gas concentration unit comprises that also one is used to resolve the extraction retracting device that separation is attached to the fumigant on the described absorbent bed.
Above-mentioned gas concentration unit, its characteristics are that described extraction retracting device comprises:
One heater is communicated with described circulating fan air outlet and described first circulating line;
One the 3rd circulating line, one end and described second circulating line are communicated with absorbing between the cabin at described second two-way valve, and the other end and described admission line are communicated with between the air inlet of described first two-way valve and circulating fan;
One the 3rd two-way valve, it is arranged on described the 3rd circulating line.
Above-mentioned gas concentration unit, its characteristics are, also are provided with a filter on described admission line.
Above-mentioned gas concentration unit, its characteristics are that described stifling space is a fixing stifling warehouse.
Above-mentioned gas concentration unit, its characteristics are that described stifling space is a movably mobile stifling case.
According to one side of the present utility model, can before the gas discharging in the stifling space, utilize gas concentration unit of the present utility model to sponge remaining fumigant such as most Celfume, thereby reduce the discharging of Celfume, have environmental-protecting performance preferably.
According on the other hand of the present utility model, also can utilize the heater of gas concentration unit of the present utility model, but the fumigant such as Celfume that absorbent bed absorbed resolve and to separate, and utilize once more in the stifling space of recycled back, reduced cost.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is the structural representation of of the present utility model one preferable gas concentration unit.
Embodiment
As shown in Figure 1, show the structure of the preferable gas concentration unit of the utility model one, it mainly comprises: one absorbs cabin 10, is provided with at least one group of absorbent bed in it, at least a portion sorbing material (as carbon fiber) adheres on it, is used for absorbing the remaining methyl bromide fumigation agent of tail gas; One closed cycle piping unit, it is in an airtight stifling space (not shown) and absorb the circulation path that is formed with closed circulation between the cabin 10.Remaining fumigant mist enters through described closed cycle piping unit from stifling spatial flow and absorbs in the cabin 10, absorb fumigant remaining in the mist through absorbent bed, flow back to stifling space from the closed cycle piping unit, form the circulation path of closed circulation, mist is through after repeatedly circulating, absorbent bed can sponge about 95% remaining fumigant, like this, can enter in the atmosphere by discharge duct discharging through the tail gas after the absorption, as by the emission by exhaust pipe on the stifling space, thereby reduced the discharging of Celfume.
In present embodiment as shown in Figure 1, described closed cycle piping unit comprises: a circulating fan 30, and its air inlet is communicated to described stifling space by an admission line 40; One first circulating line 20, the one end is communicated with the air outlet of described circulating fan 30, and the other end is communicated to the bottom in described absorption cabin 10; One second circulating line 60, one end are communicated to top, described absorption cabin, and the other end is communicated with described stifling space; One first two-way valve 42 is arranged on the described admission line 40, is used to make admission line to be communicated with or is not communicated with; One second two-way valve 62 is arranged on described second circulating line 60, is used to make second circulating line 60 to be communicated with or not to be communicated with.
And, preferable, the utility model is separated for the fumigant parsing that will be adsorbed on the absorbent bed, also is provided with one and extracts retracting device on gas concentration unit, it comprises: a heater 70 is communicated with described circulating fan 30 air outlets and described first circulating line 20; One the 3rd circulating line 80, one end and described second circulating line 60 are communicated with absorbing between the cabin at described second two-way valve 62, and the other end and described admission line 40 are communicated with between the air inlet of described first two-way valve 42 and circulating fan 30; One the 3rd two-way valve 82, it is arranged on described the 3rd circulating line 80, is used to make the 3rd circulating line 80 to be communicated with or not to be communicated with.
In addition, between admission line 40 and circulating fan 30 air inlets, a filter 50 can be set also.
Below with reference to Fig. 1 gas absorption process of the present utility model and fumigant extraction removal process are described further.
In the gas absorption process, open first two-way valve 42, second two-way valve 62, and close the 3rd two-way valve 82, heater 70, like this, behind the ON cycle blower fan 30, in the stifling space admixture of gas of remaining fumigant by the tail gas import flow through described admission line 40, filter 50, circulating fan 30 air inlets, circulating fan 30 air outlets, heater, first circulating line 20, absorb cabin 10, second circulating line 60, flow back to and fumigate in the space, form the circulation path of a closed circulation.Admixture of gas is through after repeatedly circulating, and remaining fumigant (as the Celfume) major part that contains in the gas is absorbed the absorbent beds absorption in the cabin 10, thereby reaches the purpose that reduces the Celfume content in the exhaust emissions.
In the extraction removal process of fumigant, form a closed circulation pipeline independently on the cabin 10 absorbing, by heater 70 heated air to uniform temperature, fumigant adsorbed on the absorbent bed is resolved, separates, gasified, open the passage that absorbs cabin 10 and stifling space then, the gas that will contain fumigant is sent into continuation utilization in the stifling space.Also be, its course of work is as follows: close first two-way valve 42, second two-way valve 62, open the 3rd two-way valve 82, like this, absorb cabin 10, second circulating line 60, the 3rd circulating line 80, admission line 40, filter 50, circulating fan 30 air inlets, circulating fan 30 air outlets, heater 70, first circulating line 20, absorb between the cabin 10 and form independently closed circulation pipeline, heater 70, after air-flow is heated to uniform temperature, by described closed circulation pipeline circulating current, fumigant adsorbed on the absorbent beds in the absorption cabin 10 can be resolved and separate, form mist.After resolving finishes, can open first two-way valve 42, second two-way valve 62, and close the 3rd two-way valve 82, like this, the mist that can will contain fumigant is sent in the stifling space, carries out second use.
And, the gas concentration unit in the utility model can with fixing stifling facility, as the stifling supporting use in storehouse, also can with the stifling setting of moving, as moving supporting use such as stifling case.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1, a kind of gas concentration unit is used for the absorption recycling of the admixture of gas of the remaining fumigant in the airtight stifling space, it is characterized in that it comprises:
One absorbs the cabin, is provided with at least one group of absorbent bed in it, and at least a portion sorbing material adheres on it;
One closed cycle piping unit, it is in described stifling space and absorb the circulation path that is formed with closed circulation between the cabin.
2, gas concentration unit according to claim 1 is characterized in that, described closed cycle piping unit comprises at least:
One circulating fan, its air inlet is communicated to described stifling space by an admission line;
One first circulating line, the one end is communicated with the air outlet of described circulating fan, and the other end is communicated with described absorption cabin;
One second circulating line, the one end is communicated with described absorption cabin, and the other end is communicated with described stifling space;
Wherein, in the described stifling space admixture of gas of remaining fumigant flow through described admission line, circulating fan air inlet, circulating fan air outlet, first circulating line, absorb cabin, second circulating line, stifling space, form the circulation path of described closed circulation.
3, gas concentration unit according to claim 2, it is characterized in that, the inlet that described first circulating line is communicated with described absorption cabin is positioned at the bottom in described absorption cabin, and the outlet that described second circulating line is communicated with described absorption cabin is positioned at the top in described absorption cabin.
4, gas concentration unit according to claim 2 is characterized in that, described closed cycle piping unit also comprises:
One first two-way valve is arranged on the described admission line;
One second two-way valve is arranged on described second circulating line.
5, gas concentration unit according to claim 4 is characterized in that, described gas concentration unit comprises that also one is used to resolve the extraction retracting device that separation is attached to the fumigant on the described absorbent bed.
6, gas concentration unit according to claim 5 is characterized in that, described extraction retracting device comprises:
One heater is communicated with described circulating fan air outlet and described first circulating line;
One the 3rd circulating line, one end and described second circulating line are communicated with absorbing between the cabin at described second two-way valve, and the other end and described admission line are communicated with between the air inlet of described first two-way valve and circulating fan;
One the 3rd two-way valve, it is arranged on described the 3rd circulating line.
7, according to claim 1 or 2 or 3 or 4 or 5 or 6 described gas concentration units, it is characterized in that, on described admission line, also be provided with a filter.
8, according to claim 1 or 2 or 3 or 4 or 5 or 6 described gas concentration units, it is characterized in that the carbon fiber absorption bed that described absorbent bed distributes for many groups are arranged in parallel.
According to claim 1 or 2 or 3 or 4 or 5 or 6 described gas concentration units, it is characterized in that 9, described stifling space is a fixing stifling warehouse.
According to claim 1 or 2 or 3 or 4 or 5 or 6 described gas concentration units, it is characterized in that 10, described stifling space is a movably mobile stifling case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200230550U CN2805369Y (en) | 2005-06-28 | 2005-06-28 | Gas recovery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200230550U CN2805369Y (en) | 2005-06-28 | 2005-06-28 | Gas recovery apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2805369Y true CN2805369Y (en) | 2006-08-16 |
Family
ID=36919667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200230550U Expired - Fee Related CN2805369Y (en) | 2005-06-28 | 2005-06-28 | Gas recovery apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2805369Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150651A (en) * | 2010-12-17 | 2011-08-17 | 中华人民共和国天津出入境检验检疫局 | System for reutilizing bromomethane by vacuum heating |
| CN103638799A (en) * | 2013-12-07 | 2014-03-19 | 中华人民共和国德州出入境检验检疫局 | Recycling method and recycling device of fumigation agent methyl bromide |
| CN104430267A (en) * | 2014-11-13 | 2015-03-25 | 浙江大学 | Disinfection and disinfestation system capable of recycling sulfuryl fluoride |
| CN108789723A (en) * | 2018-07-20 | 2018-11-13 | 唐山曹妃甸木业股份有限公司 | Pharmaceutical pipeline device and pipe-line system |
| CN111066499A (en) * | 2019-12-26 | 2020-04-28 | 湖南省粮油产品质量监测中心 | Allicin fumigation apparatus |
-
2005
- 2005-06-28 CN CNU2005200230550U patent/CN2805369Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150651A (en) * | 2010-12-17 | 2011-08-17 | 中华人民共和国天津出入境检验检疫局 | System for reutilizing bromomethane by vacuum heating |
| CN103638799A (en) * | 2013-12-07 | 2014-03-19 | 中华人民共和国德州出入境检验检疫局 | Recycling method and recycling device of fumigation agent methyl bromide |
| CN103638799B (en) * | 2013-12-07 | 2016-04-06 | 中华人民共和国德州出入境检验检疫局 | A kind of recovery method of fumigant methyl bromide and retracting device |
| CN104430267A (en) * | 2014-11-13 | 2015-03-25 | 浙江大学 | Disinfection and disinfestation system capable of recycling sulfuryl fluoride |
| CN108789723A (en) * | 2018-07-20 | 2018-11-13 | 唐山曹妃甸木业股份有限公司 | Pharmaceutical pipeline device and pipe-line system |
| CN111066499A (en) * | 2019-12-26 | 2020-04-28 | 湖南省粮油产品质量监测中心 | Allicin fumigation apparatus |
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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: 20060816 Termination date: 20100628 |