CN104800872A - Formaldehyde fumigation method and formaldehyde fumigation device - Google Patents
Formaldehyde fumigation method and formaldehyde fumigation device Download PDFInfo
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- CN104800872A CN104800872A CN201510162963.6A CN201510162963A CN104800872A CN 104800872 A CN104800872 A CN 104800872A CN 201510162963 A CN201510162963 A CN 201510162963A CN 104800872 A CN104800872 A CN 104800872A
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- formaldehyde
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- potassium permanganate
- formalin
- time delay
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Abstract
The invention discloses a formaldehyde fumigation method and a formaldehyde fumigation device. According to the invention, the contact time of formaldehyde and potassium permanganate can be well controlled, so that formaldehyde can fully react, and no formaldehyde liquid being left is ensured, and the effect of fumigation for a sealed room is achieved; formaldehyde and potassium permanganate reacts after an operator leaves the room to be disinfected, so that open fire is avoided during the whole fumigation process, and the safety of the operator is ensured.
Description
Technical field
The present invention relates to a kind of formaldehyde fumigation sterilization method, the invention still further relates to a kind of formaldehyde fumigation decontaminating apparatus.
Background technology
The formaldehyde fumigation disinfection way of current use adds in rustless steel container by formaldehyde, container is placed on support, heat with alcohol burner, formaldehyde is made to evaporate method in indoor fumigation, the shortcoming of the method is that operation link is loaded down with trivial details, the method there is potential safety hazard: after need light alcohol burner, operator just can withdraw from a room, now formaldehyde has started volatilization, can have an impact to the operator ' s health do not withdrawn from a room, even cause formaldehyde poisoning symptom, severe formaldehyde poisoning entail dangers to life; Alcohol burner is naked light, easily causes disaster hidden-trouble.
Summary of the invention
In order to solve the problems referred to above existing for prior art, the invention provides a kind of formaldehyde fumigation sterilization method and decontaminating apparatus thereof, chemical principle is utilized to carry out disinfection, it can well control the time of contact of formaldehyde and potassium permanganate, make formaldehyde reaction complete, ensure that formaldehyde liquid noresidue is to reach the effect of the fumigation to closed room; Formaldehyde and potassium permanganate are reacted after operator open 30 seconds of valve, reserve the time leaving clean room to operator, and whole disinfecting process avoids the generation of naked light, ensure that the safety of operator.
Technical solution of the present invention forms like this:
A kind of formaldehyde fumigation sterilization method, is characterized in that, comprise the following steps: formalin flow to the formaldehyde transfer pipeline of band valve through formaldehyde trench bottom aperture; Opening valve makes formalin flow into time delay groove and control formalin flow velocity size; Formalin flow in time delay groove through formaldehyde transfer pipeline; When the height of formalin in time delay groove reaches spillway hole height, formalin flows out from spillway hole, flow to and is equipped with in the potassium permanganate groove of potassium permanganate solid; Formalin and potassium permanganate solid contact react, and formaldehyde gas discharges, and carries out fumigation to closed room.Described formalin concentration is 36%, and the liquid-solid ratio of formalin and potassium permanganate solid is 25:1 (V:W); At least start to react with potassium permanganate solid through 30 seconds formalin after opening valve.
Present invention also offers a kind of decontaminating apparatus for above-mentioned formaldehyde fumigation sterilization method, it is characterized in that, comprise formaldehyde groove, support, potassium permanganate groove, time delay groove and formaldehyde transfer pipeline, described formaldehyde trench bottom depressed area is provided with aperture; The bottom of described formaldehyde groove is fixed on above support; One end of described formaldehyde transfer pipeline is connected to formaldehyde trench bottom and communicates with aperture, and the other end of formaldehyde transfer pipeline stretches at potassium permanganate groove sidewall, and below is provided with the time delay groove being fixed on potassium permanganate trench bottom; Described formaldehyde transfer pipeline is provided with valve; Described time delay groove side is provided with spillway hole.
Preferably, the interior diameter ratio of hole diameter and formaldehyde transfer pipeline is 1:10.
Preferably, described time delay groove is cylinder or cuboid, and formaldehyde transfer pipeline does not exceed the cell body of time delay groove at potassium permanganate groove sidewall built-in length.
Preferably, described spillway hole height is distance time delay trench bottom 1-1.3cm, and described spillway hole diameter is 0.2-0.4cm.
Preferably, described formaldehyde groove is cylinder; Support is square or cuboid, the movable dismounting at least one side; Potassium permanganate groove is rectangle or square.
Preferably, one end of described formaldehyde transfer pipeline is welded on formaldehyde trench bottom and communicates with aperture, and hole diameter is 1.0mm, and the interior diameter of formaldehyde transfer pipeline is 1.0cm.
Preferably, be a cuboid after support and the combination of potassium permanganate groove.
Preferably, described decontaminating apparatus material is rustless steel.
The present invention has cushioned the reaction of formalin and potassium permanganate solid by time delay groove, and spillway hole wherein controls the time of formalin and potassium permanganate solid contact especially, leaves clean room provide the time to operator.
Now inventor is described below in the development of existing equipment:
First time tests improvement:
The present invention uses electrically operated valve at first, and due to inconvenient operation, rear dismounting electrically operated valve, installs manually-operated gate, realize Artificial Control chemical reaction.The method is simple and convenient, but chemical reaction is still very violent.
Second time tests improvement:
The hole diameter of formaldehyde trench bottom depressed area is set to 1.5mm; Valve open, formalin 2-3s flows in potassium permanganate groove, and violent chemical reaction occurs.
Third time tests improvement:
Adopt the drill bit redrilling of 1.0mm that the hole diameter of formaldehyde trench bottom depressed area is improved to 1.0mm, reaction severe degree obviously reduces.
Although inventor finds to control response strength by improving hole diameter, but the formaldehyde fumigation decontaminating apparatus of more than 2 is all put in general clean area fumigation, if only carry out above-mentioned improvement, operator safety can not be reached and leave on-the-spot effect, so determine to increase time delay groove for the present invention, delay the response time of formalin and potassium permanganate solid, reach the requirement carrying out after operator leave clean room reacting.Concrete steps are as follows:
A. suppose that operator need the time of 30s to withdraw stifling on-the-spot, calculated the volume of time delay groove by beaker measurement formalin by the liquid volume of formaldehyde transfer pipeline stream 30s.
B. because the formalin volume flowing into time delay groove exceedes when time delay cell body amasss start chemical reaction occurs, need to output gap in the corresponding position of time delay groove, control the time that formalin flows out time delay groove and potassium permanganate solid reaction, determine that gap diameter is 0.2-0.4cm by test, start chemical reaction occurs through the time of 30s after making valve open, such operator just can have the safe escape time of 30s after opening valve.4th test improves:
Appropriate formaldehyde and potassium permanganate are poured in formaldehyde groove and potassium permanganate groove respectively, starts timing while opening valve, after 30s, chemical reaction occurs, illustrate that time delay groove and gap can reach the effect delaying above-mentioned reaction.But find after off-test to remain formaldehyde in time delay groove, illustrate and fully do not react.Need to adjust spillway hole height to reach the requirement of fully reaction.
The height (h spillway hole) of computation delay groove spillway hole, measures the height (h mixing) that reaction terminates rear mixed solution, the formalin in time delay groove be made to react completely, need h mixing > h spillway hole.
By test measuring and calculating h mixing and removing residue formaldehyde solution conditions in the time delay groove of h spillway hole differing heights difference, result of the test is in table 1.Test illustrates that h mixes the requirement that should react completely with the formalin reached in time delay groove higher than h spillway hole 15mm, determines that spillway hole height is 1-1.3cm.
Table 1
Accompanying drawing explanation
Fig. 1 is the structural representation of decontaminating apparatus of the present invention
Fig. 2 is the top view of decontaminating apparatus of the present invention
Detailed description of the invention
Present invention is described for 1-2 by reference to the accompanying drawings:
Embodiment 1
The height on formaldehyde groove (1) distance ground is 38cm, the straight warp of aperture (2) in bottom notch district is 1mm, the bottom of formaldehyde groove (1) is fixed on above support (3), support (3) is square, the movable dismounting at least one side, be a cuboid after support (3) and potassium permanganate groove (4) combination, the interior diameter of formaldehyde transfer pipeline (7) is 1cm, one end of formaldehyde transfer pipeline (7) is welded on formaldehyde groove (1) bottom and communicates with aperture (2), the other end of formaldehyde transfer pipeline (7) stretches at potassium permanganate groove (4) sidewall, below is provided with the time delay groove (5) being fixed on potassium permanganate trench bottom, formaldehyde transfer pipeline (7) does not exceed the cell body of time delay groove (5) at potassium permanganate groove (4) sidewall built-in length, formaldehyde transfer pipeline (7) is provided with valve (8), time delay groove (5) side is provided with spillway hole (6), spillway hole (6) is highly distance time delay trench bottom 1.3cm, diameter is 0.4cm.
Preferably, described time delay groove is cylinder or cuboid.
Preferably, formaldehyde groove is cylinder, and potassium permanganate groove is rectangle or square.
Formalin and potassium permanganate solid are poured respectively into formaldehyde groove (1) and potassium permanganate groove (4), described formalin concentration is 36%, and the liquid-solid ratio of formalin and potassium permanganate solid is 25:1 (V:W).Formalin flow to the formaldehyde transfer pipeline (7) of band valve (8) through formaldehyde trench bottom aperture (2); Opening valve (8) makes formalin flow into time delay groove and control formalin flow velocity size; Formalin flow in time delay groove (5) through formaldehyde transfer pipeline (7); When the height of formalin in time delay groove (5) reaches spillway hole (6) height, formalin flows out from spillway hole (6), flow to and is equipped with in the potassium permanganate groove (4) of potassium permanganate solid; Formalin and potassium permanganate solid contact react, and formaldehyde gas discharges, and carries out fumigation to closed room.Open valve to start to react with potassium permanganate solid through 30 seconds formalin.
Embodiment 2
The height on formaldehyde groove (1) distance ground is 45cm, the straight warp of aperture (2) in bottom notch district is 1mm, the bottom of formaldehyde groove (1) is fixed on above support (3), support (3) is cuboid, the movable dismounting at least one side, be a cuboid after support (3) and potassium permanganate groove (4) combination, the interior diameter of formaldehyde transfer pipeline (7) is 1cm, one end of formaldehyde transfer pipeline (7) is welded on formaldehyde groove (1) bottom and communicates with aperture (2), the other end of formaldehyde transfer pipeline (7) stretches at potassium permanganate groove (4) sidewall, below is provided with the time delay groove (5) being fixed on potassium permanganate trench bottom, formaldehyde transfer pipeline (7) does not exceed the cell body of time delay groove (5) at potassium permanganate groove (4) sidewall built-in length, formaldehyde transfer pipeline (7) is provided with valve (8), time delay groove (5) side is provided with spillway hole (6), spillway hole (6) is highly distance time delay trench bottom 1cm, diameter is 0.2cm.
Preferably, described time delay groove is cylinder or cuboid.
Preferably, formaldehyde groove is cylinder, and potassium permanganate groove is rectangle or square.
Formalin and potassium permanganate solid are poured respectively into formaldehyde groove (1) and potassium permanganate groove (4), described formalin concentration is 36%, and the liquid-solid ratio of formalin and potassium permanganate solid is 25:1 (V:W).Formalin flow to the formaldehyde transfer pipeline (7) of band valve (8) through formaldehyde trench bottom aperture (2); Opening valve (8) makes formalin flow into time delay groove and control formalin flow velocity size; Formalin flow in time delay groove (5) through formaldehyde transfer pipeline (7); When the height of formalin in time delay groove (5) reaches spillway hole (6) height, formalin flows out from spillway hole (6), flow to and is equipped with in the potassium permanganate groove (4) of potassium permanganate solid; Formalin and potassium permanganate solid contact react, and formaldehyde gas discharges, and carries out fumigation to closed room.Open valve to start to react with potassium permanganate solid through 40 seconds formalin.
Claims (11)
1. a formaldehyde fumigation sterilization method, is characterized in that, comprises the following steps: formalin flow to the formaldehyde transfer pipeline of band valve through formaldehyde trench bottom aperture; Opening valve makes formalin flow into time delay groove and control formalin flow velocity size; Formalin flow in time delay groove through formaldehyde transfer pipeline; When the height of formalin in time delay groove reaches spillway hole height, formalin flows out from spillway hole, flow to and is equipped with in the potassium permanganate groove of potassium permanganate solid; Formalin and potassium permanganate solid contact react, and formaldehyde gas discharges, and carries out fumigation to closed room.
2. formaldehyde fumigation sterilization method as claimed in claim 1, it is characterized in that, described formalin concentration is 36%, and the liquid-solid ratio of formalin and potassium permanganate solid is 25:1 (V:W).
3. formaldehyde fumigation sterilization method as claimed in claim 1, is characterized in that, at least start to react with potassium permanganate solid through 30 seconds formalin after opening valve.
4. a formaldehyde fumigation decontaminating apparatus, it is characterized in that, comprise formaldehyde groove (1), support (3), potassium permanganate groove (4), time delay groove (5) and formaldehyde transfer pipeline (7), described formaldehyde groove (1) bottom notch district is provided with aperture (2); The bottom of described formaldehyde groove (1) is fixed on above support (3); One end of described formaldehyde transfer pipeline (7) is connected to formaldehyde groove (1) bottom and communicates with aperture (2), the other end of formaldehyde transfer pipeline (7) stretches at potassium permanganate groove (4) sidewall, and below is provided with the time delay groove (5) being fixed on potassium permanganate groove (4) bottom; Described formaldehyde transfer pipeline (7) is provided with valve (8); Described time delay groove (5) side is provided with spillway hole (6).
5. decontaminating apparatus as claimed in claim 4, it is characterized in that, the interior diameter ratio of aperture (2) diameter and formaldehyde transfer pipeline (7) is 1:10.
6. decontaminating apparatus as claimed in claim 4, it is characterized in that, described time delay groove (5) is cylinder or cuboid, and formaldehyde transfer pipeline (7) does not exceed the cell body of time delay groove (5) at potassium permanganate groove (4) sidewall built-in length.
7. decontaminating apparatus as claimed in claim 4, is characterized in that, described spillway hole (6) is highly distance time delay trench bottom 1-1.3cm, and described spillway hole (6) diameter is 0.2-0.4cm.
8. decontaminating apparatus as claimed in claim 1, it is characterized in that, described formaldehyde groove (1) is cylinder; Support (3) is square or cuboid, the movable dismounting at least one side; Potassium permanganate groove (4) is rectangle or square.
9. decontaminating apparatus as claimed in claim 5, it is characterized in that, one end of described formaldehyde transfer pipeline (7) is welded on formaldehyde groove (1) bottom and communicates with aperture (2), aperture (2) diameter is 1.0mm, and the interior diameter of formaldehyde transfer pipeline (7) is 1.0cm.
10. decontaminating apparatus as claimed in claim 8, is characterized in that, is a cuboid after support (3) and potassium permanganate groove (4) combination.
11. decontaminating apparatuss as claimed in claim 4, it is characterized in that, described decontaminating apparatus material is rustless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510162963.6A CN104800872B (en) | 2015-04-08 | 2015-04-08 | A kind of formaldehyde fumigation sterilization method and its chlorination equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510162963.6A CN104800872B (en) | 2015-04-08 | 2015-04-08 | A kind of formaldehyde fumigation sterilization method and its chlorination equipment |
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| CN104800872A true CN104800872A (en) | 2015-07-29 |
| CN104800872B CN104800872B (en) | 2017-06-13 |
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| CN201510162963.6A Active CN104800872B (en) | 2015-04-08 | 2015-04-08 | A kind of formaldehyde fumigation sterilization method and its chlorination equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105031683A (en) * | 2015-08-12 | 2015-11-11 | 南阳师范学院 | Reagent time delay adding device, fumigation sterilization device and fumigation sterilization method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03109069A (en) * | 1989-09-22 | 1991-05-09 | Nippon Soda Co Ltd | Fumigating sterilization |
| CN2418877Y (en) * | 1999-11-09 | 2001-02-14 | 桂茶华 | Disposable fumigation sterilizing pot |
| CN201996878U (en) * | 2011-02-28 | 2011-10-05 | 刘德江 | Efficient fuming fumigator |
| CN204542953U (en) * | 2015-04-08 | 2015-08-12 | 石家庄四药有限公司 | A kind of formaldehyde fumigation decontaminating apparatus |
-
2015
- 2015-04-08 CN CN201510162963.6A patent/CN104800872B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03109069A (en) * | 1989-09-22 | 1991-05-09 | Nippon Soda Co Ltd | Fumigating sterilization |
| CN2418877Y (en) * | 1999-11-09 | 2001-02-14 | 桂茶华 | Disposable fumigation sterilizing pot |
| CN201996878U (en) * | 2011-02-28 | 2011-10-05 | 刘德江 | Efficient fuming fumigator |
| CN204542953U (en) * | 2015-04-08 | 2015-08-12 | 石家庄四药有限公司 | A kind of formaldehyde fumigation decontaminating apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105031683A (en) * | 2015-08-12 | 2015-11-11 | 南阳师范学院 | Reagent time delay adding device, fumigation sterilization device and fumigation sterilization method |
| CN105031683B (en) * | 2015-08-12 | 2018-07-13 | 南阳师范学院 | Fumigation method |
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| CN104800872B (en) | 2017-06-13 |
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Address after: 050035 No. 518, Huai'an East Road, high tech Industrial Development Zone, Shijiazhuang City, Hebei Province Patentee after: SHIJIAZHUANG NO.4 PHARMACEUTICAL Co.,Ltd. Address before: 050035 No.288, Zhujiang Avenue, Shijiazhuang hi tech Industrial Development Zone, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG NO.4 PHARMACEUTICAL Co.,Ltd. |
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