CN201840980U - Online pH value detection and regulation device for phosphine gas purification equipment - Google Patents
Online pH value detection and regulation device for phosphine gas purification equipment Download PDFInfo
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- CN201840980U CN201840980U CN2010202770075U CN201020277007U CN201840980U CN 201840980 U CN201840980 U CN 201840980U CN 2010202770075 U CN2010202770075 U CN 2010202770075U CN 201020277007 U CN201020277007 U CN 201020277007U CN 201840980 U CN201840980 U CN 201840980U
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Abstract
The utility model discloses an online pH value detection and regulation device for phosphine gas purification equipment, which comprises an absorption reaction tower body (7) and a feed pump (6). A pH value probe (3) which is in contact with reaction solution in the absorption reaction tower body (7) is installed on the absorption reaction tower body (7). The pH value probe (3) is connected with a pH value detection display control instrument (4) through a signal line. The pH value detection display control instrument (4) is electrically connected with the control system of the charging pump (6) through an output control line. By using the pH value online detection display control instrument and inserting the pH value probe (3) into the reaction solution in the absorption reaction tower body (7), the pH value of the reaction solution can be monitored by the pH value probe (3) in real time and can be kept within 5.5 to 8.5. When the pH value is high, the feed pump on a solution storage tank outside the reaction tower is controlled to feed acid solution into the reaction solution to keep the pH value of the reaction solution within 5.5 to 8.5.
Description
Technical field
The utility model is a kind of industries such as tobacco, grain, Chinese herbal medicine that relate to, behind the hydrogen phosphide desinsection, and in order to the equipment that the hydrogen phosphide residual gas is purified, the device that equipment reaction tower internal reaction liquid is carried out online detection of acid-base value and regulation and control.
Technical background
Industries such as tobacco, grain, Chinese herbal medicine need storage for a long time, in the process of storage, be easy to produce insect pest, therefore domestic most of cigarette factory, grain depot, medium-height grass Drug Storage divide secondary to carry out the insecticidal operation of warehousing storage in spring, autumn (insect larva and ovum incubation period) respectively.The process of desinsection at first seals storehouse or carries out the sealing of film tent with the article that plastic sheeting will desinsection, utilize the toxicity of hydrogen phosphide in the regular hour, the insect in the confined space to be killed, but also residual a large amount of poisonous phosphine gas in the warehouse of the back sealing that kills off the insect pests and the tent, present stage is to the processing method of residual phosphine gas, a kind of is that storehouse and the tent of opening sealing directly spreads discharging, this surrounding environment to the reservoir area causes certain pollution, does not advocate.A kind of is to utilize reclaimer that residual hydrogen phosphide in the storehouse or in the tent is carried out purified treatment to make it generate nontoxic material.It mainly is to utilize chemical oxidation reaction that hydrogen phosphide purification is handled prior art, and the acid-base value of reaction tower internal reaction liquid is that influence purifies one of key of reacting, requirement and device that the present still unmatchful acid-base value of prior art is controlled.
The utility model content
Technical problem to be solved in the utility model provides a kind of can the online acid-base value that is used on the phosphine gas cleaning equipment that the acid-base value of reaction tower internal reaction liquid is carried out real-time monitoring the detection and regulation device.
In order to solve the problems of the technologies described above, the online acid-base value that is used on the phosphine gas cleaning equipment that the utility model provides detects and regulation device, comprise absorption reaction tower body and fluid filling pump, on described absorption reaction tower body, be equipped with described absorption reaction tower body in the acid-base value probe of reactant liquor contact detection, described acid-base value probe detects by holding wire and pH value and shows that controller links to each other, and described pH value detects and shows that controller is electrically connected with the control system of described fluid filling pump by output control line.
Described acid-base value probe is inserted in the middle and lower part of described absorption reaction tower body.
Adopt the online acid-base value that is used on the phosphine gas cleaning equipment of technique scheme to detect and regulation device, the course of work of device is: the acid-base value probe is monitored the acid-base value (pH value) of the reactant liquor in the absorption reaction tower in real time, because pH value of reaction system constantly raises in the hydrogen phosphide absorption process, utilize the pH value detect to show that controller makes its pH value demonstration and is controlled between 5.5～8.9, in the process that hydrogen phosphide is absorbed when the pH of reactant liquor value is higher than 8.9, the control of pH value detection demonstration controller adds the fluid filling pump of sour liquid reserve tank and opens, in the absorption reaction tower body, add acid, regulate its pH value and make between pH value control 5.5～8.9 scopes of reactant liquor, absorption reaction is maintained a good state.
In sum, the utility model is a kind of can the online acid-base value that is used on the phosphine gas cleaning equipment that the acid-base value of reaction tower internal reaction liquid is carried out real-time monitoring and simple in structure, dependable performance the detection and regulation device.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is an installation site of the present utility model schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1 and Fig. 2, absorption reaction tower body 7 tops are provided with wind pipe 8, absorption reaction tower body 7 bottoms are connected with centrifugal high pressure air exhauster 1 by intake stack 2, adding sour liquid reserve tank 5 is connected with absorption reaction tower body 7 by fluid filling pump 6, the middle and lower part of absorption reaction tower body 7 be equipped with absorption reaction tower body 7 in the acid-base value probe 3 of reactant liquor contact detection, acid-base value probe 3 detects by holding wire and pH value and shows that controller 4 links to each other, and the pH value detects and shows that controller 4 is electrically connected by the control system of output control line with fluid filling pump 6.
Referring to Fig. 1 and Fig. 2, the course of work of the present utility model is: acid-base value probe 3 is monitored the acid-base value (pH value) of the reactant liquor in the absorption reaction tower 7 in real time, because pH value of reaction system constantly raises in the hydrogen phosphide absorption process, utilize the pH value detect to show that controller 4 makes its pH value demonstration and is controlled between 5.5～8.9, in the process that hydrogen phosphide is absorbed when the pH of reactant liquor value is higher than 8.9,4 controls of pH value detection demonstration controller add the fluid filling pump 6 of sour liquid reserve tank 5 and open, in absorption reaction tower body 7, add acid, regulate its pH value and make between pH value control 5.5～8.9 scopes of reactant liquor, make absorption reaction remain on optimum state.
Claims (2)
1. an online acid-base value that is used on the phosphine gas cleaning equipment detects and regulation device, comprise absorption reaction tower body (7) and fluid filling pump (6), it is characterized in that: on described absorption reaction tower body (7), be equipped with described absorption reaction tower body (7) in the acid-base value probe (3) of reactant liquor contact detection, described acid-base value probe (3) detects by holding wire and pH value and shows that controller (4) links to each other, and described pH value detects and shows that controller (4) is electrically connected by the control system of output control line with described fluid filling pump (6).
2. the online acid-base value that is used on the phosphine gas cleaning equipment according to claim 1 detects and regulation device, and it is characterized in that: described acid-base value probe (3) is inserted in the middle and lower part of described absorption reaction tower body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202770075U CN201840980U (en) | 2010-07-30 | 2010-07-30 | Online pH value detection and regulation device for phosphine gas purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202770075U CN201840980U (en) | 2010-07-30 | 2010-07-30 | Online pH value detection and regulation device for phosphine gas purification equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201840980U true CN201840980U (en) | 2011-05-25 |
Family
ID=44035885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202770075U Expired - Lifetime CN201840980U (en) | 2010-07-30 | 2010-07-30 | Online pH value detection and regulation device for phosphine gas purification equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201840980U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430748A (en) * | 2016-10-01 | 2017-02-22 | 辽宁中成永续水工科技有限公司 | Automatic pH monitoring control device of waste acid treatment and recovery system |
| CN116381153A (en) * | 2023-04-11 | 2023-07-04 | 安徽华西稀有金属材料有限公司 | Method and device for detecting pH value of molybdenum concentrate by continuously adding ammonia through oxygen pressure ammonia leaching |
-
2010
- 2010-07-30 CN CN2010202770075U patent/CN201840980U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430748A (en) * | 2016-10-01 | 2017-02-22 | 辽宁中成永续水工科技有限公司 | Automatic pH monitoring control device of waste acid treatment and recovery system |
| CN116381153A (en) * | 2023-04-11 | 2023-07-04 | 安徽华西稀有金属材料有限公司 | Method and device for detecting pH value of molybdenum concentrate by continuously adding ammonia through oxygen pressure ammonia leaching |
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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: 20110525 |
|
| CX01 | Expiry of patent term |