CN105876590A - Novel ethyl formate quantitative dosing system - Google Patents
Novel ethyl formate quantitative dosing system Download PDFInfo
- Publication number
- CN105876590A CN105876590A CN201410456410.7A CN201410456410A CN105876590A CN 105876590 A CN105876590 A CN 105876590A CN 201410456410 A CN201410456410 A CN 201410456410A CN 105876590 A CN105876590 A CN 105876590A
- Authority
- CN
- China
- Prior art keywords
- ethyl formate
- gasifier
- gasification
- gas
- dosing system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 title claims abstract description 58
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 title claims abstract description 57
- 238000002309 gasification Methods 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 238000003958 fumigation Methods 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002316 fumigant Substances 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Catching Or Destruction (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A novel ethyl formate quantitative dosing system comprises an ethyl formate storage tank, a constant delivery pump, a flowmeter, a gasifier and a gas blending tank, etc. A controller controls temperature of the gasifier. The flowmeter controls gasification quantity of ethyl formate. The gasifier is a hollow cylinder strcture, and the gasifier wall contains an inner wall and an outer wall. By a heater strip spirally wound between the inner wall and the outer wall, ethyl formate is heated to be gasified. According to the invention, gasification quantity of ethyl formate can be effectively controlled. After mixing of CO2 or N2 gas and ethyl formate, explosion danger coefficient can be reduced, heating area inside the gasifier can be increased, and gasification efficiency of ethyl formate is improved.
Description
Art
The present invention relates to a kind of quantitative chemical dosing system, use of quantitatively gasifying in particular for Ethyl formate, belong to commercial production processing, plant protection process and quarantine suffocating treatment technical field.
Background technology
Ethyl formate as dry fruit, eat fruit raw and grain fumigating agent has been widely used, quality and the germination percentage of planting plants is not interfered with during stifling, Ethyl formate can be given birth to during preserving in natural birth simultaneously, and can quickly degrade to nature level, residual will not be produced, therefore, Ethyl formate is considered as a kind of very promising novel replacement fumigant.At present, Australia Commonwealth Scientific and Industrial Research Organisation (CSIR O) substitute as bromomethane is researched and developed, and is expected in terms of reducing the selection pressure of hydrogen phosphide play certain effect.
Ethyl formate is colourless liquid at normal temperatures, needs the gasification of liquid formic ethyl ester to use before stifling.In Ethyl formate gasification, the Ethyl formate of 2.7-16% easily with air formed explosive mixture, meet naked light, Gao Re or and oxidising agent, have the danger causing combustion explosion.It addition, the gasification rate of the uncontrollable Ethyl formate of the gasification process of routine and quality, easily cause gasification Ethyl formate skewness simultaneously, affect fumigating effect.
Summary of the invention
In order to form explosive mixture with air after solving Ethyl formate gasification, gasification utilization rate is low, it is impossible to accurately controlling the problems such as Ethyl formate amount of vaporization, the present invention provides a kind of novel Ethyl formate quantitative chemical dosing system.This quantitative chemical dosing system is controlled by temperature control system, comprises Ethyl formate storage tank, dosing pump, current meter, gasifier and gas blending tank, CO2Or N2Generator etc..
Ethyl formate storage tank is used for depositing Ethyl formate liquid, and dosing pump controls the content of Ethyl formate gasification, the work efficiency of current meter monitoring gasifier, controls Ethyl formate flow rate by valve opening and closing, and gasifier completes Ethyl formate gasification.Ethyl formate gas after gasification is in gas blending tank and CO2Or N2It is stored in after mixing in gas blending tank, can import in Fumigation Station for fumigating.
Gasifier is by temperature controller control, and temperature controller controls gasifier internal temperature and reaches Ethyl formate gasification temperature.Gasifier inner hollow, outer layer has inside and outside wall two-layer, is wound around heater strip between inside and outside wall two-layer, and heater strip promotes gasifier internal temperature, heats Ethyl formate liquid so that it is gasification.
The external CO of gas blending tank2Or N2Generator, multiple gases mixes in blending tank, reduces Ethyl formate gas ratio in Fumigation Station, prevents Ethyl formate from exploding.
Beneficial effect
1, CO is added2Or N2Gas can avoid Ethyl formate to mix with air, reduces the aerial content of Ethyl formate, reduces explosion danger coefficient, improves safety；
2, dosing pump and current meter accurately control Ethyl formate gasification quantity and speed, can effectively control the amount of vaporization of Ethyl formate；
3, gasifier uses the mode of heater strip spiral winding, adds device internal heating surface and amasss, improves the rate of gasification of Ethyl formate.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is gasifier pictorial diagram in the present invention.
1. medicine storage tank, 2. dosing pump, 3. current meter, 4. gasifier, 5. temperature controller, 6. gas blending tank, 7. gas generator, 8. Fumigation Station, 9. gasifier outer wall, 10. gasifier inwall in figure, 11. gasifier heater strips.
Detailed description of the invention
In FIG, medicine storage tank 1 is deposited liquid Ethyl formate, quantitative Ethyl formate liquid is driven to enter current meter 3 along pipeline under the effect of dosing pump 2, the flow speed control Ethyl formate according to current meter 3 quantity by pipeline, quantitative Ethyl formate is entered in gasifier 4 by pipeline, and gasifier 4 heats under the effect of temperature controller 5, and in making gasifier 4, temperature reaches the temperature required for Ethyl formate gasification, make Ethyl formate liquid gasification become steam, entered in gas blending tank 6 by pipeline.Meanwhile, gas generator 7 is passed through CO in gas blending tank 62Or N2, mix with Ethyl formate steam, make the content of gas Ethyl formate be reduced to air and mix the concentration that blast will not occur, in entering Fumigation Station after having mixed, carry out fumigation action.
In fig. 2, gasifier 4 is a hydrostatic column, is wound around one layer of heater strip 11 between container outer wall 9 and inwall 10, and temperature controller 5 controls the temperature of heater strip 11, makes the Ethyl formate heating of gasifier inner space reach gasification temperature.
Claims (5)
1. a novel Ethyl formate quantitative chemical dosing system, it is characterised in that by temperature control system control, is provided with medicine storage tank, quantitatively
Pump, current meter, gasifier, gas blending tank and gas generator etc. form.
A kind of novel Ethyl formate quantitative chemical dosing system the most as claimed in claim 1, it is characterised in that medicine memorizer is used for depositing first
Acetoacetic ester liquid, dosing pump controls the Ethyl formate content for gasification, according to the gasification of the flow speed control Ethyl formate of current meter
Amount and speed.Ethyl formate gas after gasification is in gas blending tank and CO2Or N2Mixing, mixed gas enters Fumigation Station and enters
Row is stifling.
A kind of novel Ethyl formate quantitative chemical dosing system the most as claimed in claim 1, it is characterised in that gasifier is controlled gas by temperature controller
Change device internal temperature so that it is reach Ethyl formate gasification temperature.
A kind of novel Ethyl formate quantitative chemical dosing system the most as claimed in claim 3, it is characterised in that gasifier inner hollow, outer layer
Being divided into inside and outside wall two-layer, be wound around heater strip between inside and outside wall two-layer, heater strip promotes gasifier internal temperature, heats Ethyl formate
Liquid, controls its gasification.
A kind of novel Ethyl formate quantitative chemical dosing system the most as claimed in claim 1, it is characterised in that the external CO of gas blending tank2
Or N2Generating means, multiple gases mixes in blending tank, reduces Ethyl formate gas ratio in Fumigation Station, prevents formic acid second
Ester explodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456410.7A CN105876590A (en) | 2014-09-10 | 2014-09-10 | Novel ethyl formate quantitative dosing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456410.7A CN105876590A (en) | 2014-09-10 | 2014-09-10 | Novel ethyl formate quantitative dosing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105876590A true CN105876590A (en) | 2016-08-24 |
Family
ID=57000808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410456410.7A Pending CN105876590A (en) | 2014-09-10 | 2014-09-10 | Novel ethyl formate quantitative dosing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105876590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107549299A (en) * | 2017-09-25 | 2018-01-09 | 中国检验检疫科学研究院 | A kind of Ethyl formate administration system fumigated for fruit and method |
Citations (9)
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|---|---|---|---|---|
| WO2001037979A1 (en) * | 1999-11-19 | 2001-05-31 | Cytec Technology Corporation | Process and apparatus for supplying a gaseous mixture |
| CN101507431A (en) * | 2009-01-24 | 2009-08-19 | 中国检验检疫科学研究院检测技术与装备研究所 | Novel fumigant and preparation method and use thereof |
| CN101790974A (en) * | 2010-04-08 | 2010-08-04 | 中国检验检疫科学研究院检测技术与装备研究所 | Phosphine temperature-controlled fumigating device of fresh and live agricultural product |
| CN102114382A (en) * | 2011-01-14 | 2011-07-06 | 浙江诚信医化设备有限公司 | Method for separating and recovering fumigation medicine |
| CN102268642A (en) * | 2011-07-22 | 2011-12-07 | 上海奕瑞光电子科技有限公司 | Resistance heating evaporation source |
| CN102419292A (en) * | 2011-08-10 | 2012-04-18 | 攀钢集团有限公司 | System for determining SO3 in flue gas |
| CN202310993U (en) * | 2011-11-24 | 2012-07-11 | 四川金叶生物防治有限公司 | Hydrogen phosphide and carbon dioxide outside-bin mixed gas fumigating device |
| CN202738704U (en) * | 2012-08-15 | 2013-02-20 | 中华人民共和国山东出入境检验检疫局 | Low-temperature methyl bromide fumigation treatment house |
| CN204259765U (en) * | 2014-08-29 | 2015-04-15 | 中国检验检疫科学研究院 | A kind of novel Ethyl formate quantitative chemical dosing system |
-
2014
- 2014-09-10 CN CN201410456410.7A patent/CN105876590A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001037979A1 (en) * | 1999-11-19 | 2001-05-31 | Cytec Technology Corporation | Process and apparatus for supplying a gaseous mixture |
| CN101507431A (en) * | 2009-01-24 | 2009-08-19 | 中国检验检疫科学研究院检测技术与装备研究所 | Novel fumigant and preparation method and use thereof |
| CN101790974A (en) * | 2010-04-08 | 2010-08-04 | 中国检验检疫科学研究院检测技术与装备研究所 | Phosphine temperature-controlled fumigating device of fresh and live agricultural product |
| CN102114382A (en) * | 2011-01-14 | 2011-07-06 | 浙江诚信医化设备有限公司 | Method for separating and recovering fumigation medicine |
| CN102268642A (en) * | 2011-07-22 | 2011-12-07 | 上海奕瑞光电子科技有限公司 | Resistance heating evaporation source |
| CN102419292A (en) * | 2011-08-10 | 2012-04-18 | 攀钢集团有限公司 | System for determining SO3 in flue gas |
| CN202310993U (en) * | 2011-11-24 | 2012-07-11 | 四川金叶生物防治有限公司 | Hydrogen phosphide and carbon dioxide outside-bin mixed gas fumigating device |
| CN202738704U (en) * | 2012-08-15 | 2013-02-20 | 中华人民共和国山东出入境检验检疫局 | Low-temperature methyl bromide fumigation treatment house |
| CN204259765U (en) * | 2014-08-29 | 2015-04-15 | 中国检验检疫科学研究院 | A kind of novel Ethyl formate quantitative chemical dosing system |
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| 唐培安等: "甲酸乙酯与氮气混合熏蒸对赤拟谷盗的毒力研究", 《中国粮油学报》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107549299A (en) * | 2017-09-25 | 2018-01-09 | 中国检验检疫科学研究院 | A kind of Ethyl formate administration system fumigated for fruit and method |
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Application publication date: 20160824 |