CN202025211U - Automatic control device for accurate adding drugs in water supplying by waste heat generation - Google Patents
Automatic control device for accurate adding drugs in water supplying by waste heat generation Download PDFInfo
- Publication number
- CN202025211U CN202025211U CN2011200819518U CN201120081951U CN202025211U CN 202025211 U CN202025211 U CN 202025211U CN 2011200819518 U CN2011200819518 U CN 2011200819518U CN 201120081951 U CN201120081951 U CN 201120081951U CN 202025211 U CN202025211 U CN 202025211U
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- pipeline
- explosive barrel
- chemicals dosing
- dosing plant
- automatic control
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Abstract
The utility model belongs to the technical field of automatic control and provides an automatic control device for accurate adding drugs in water supplying of waste heat generation. The automatic control device is mainly characterized in that a PLC ( Programmable Logic Controller) and a compressed air pipeline with a safety valve are arranged on the basis of the existing drug adding device in water supplying, and an oxygen-dissolving detector and a PH value tester are arranged on a water supplying pipeline of a boiler. In the automatic control device, the functions of accurate drug adding in water supply by waste heat generation and whole-process automation control are achieved, and the automatic control device has the advantages that the drug adding is accurate, the labor intensity is reduced and the operation danger is reduced.
Description
Technical field
The utility model belongs to the automatic control technology field, relates to a kind of cogeneration accurate Automatic Dosage Control of Additives device that feeds water.
Background technology
Kiln heat recovery boiler in the production use for preventing heat distribution pipeline corrosion and fouling, in its feedwater, need to add oxygen scavenger hydrazine and pH value correctives morpholine, because hydrazine and morpholine all are the chemicalss with severe corrosive and toxicity, operating process is dangerous big, the untimely meeting of dosing simultaneously causes feed water quality to reduce, and influences the safety and the life-span of therrmodynamic system.
Summary of the invention
The inventor is in the daily course of work, find that existing kiln heat recovery boiler adds chemicals and exists above-mentioned defective in its feedwater, through design improvement constantly, technical problem to be solved in the utility model provides a kind of safe, convenient cogeneration accurate Automatic Dosage Control of Additives device that feeds water that again can Automatic Dosing.
For solving the problems of the technologies described above, technical solution adopted in the utility model is that the feed water structure of accurate Automatic Dosage Control of Additives device of this cogeneration comprises explosive barrel, the chemicals dosing plant that is connected with the explosive barrel pipeline, the drug feeding pipeline of band pump between chemicals dosing plant and boiler feed water pipeline, also establish the PLC controller, on explosive barrel, be connected with the compressed air piping of a band safety valve, on the pipeline between explosive barrel and chemicals dosing plant, establish solenoid valve, on chemicals dosing plant, establish fluid level transmitter, on the boiler feed water pipeline, establish dissolved oxygen detector and pH value analyzer, PLC controller and solenoid valve, fluid level transmitter, the chemical feed pipe pipeline pump with motor, dissolved oxygen detector and pH value analyzer control linkage.
In order effectively to control the pressurized air in the compressed air piping, with compressed air piping that explosive barrel is connected on establish stop valve.
In order to add different medicines simultaneously on the boiler feed water pipeline, the described dosing passage of being made up of the drug feeding pipeline of band pump between pipeline, chemicals dosing plant, chemicals dosing plant and the boiler feed water pipeline of charged magnet valve between compressed air piping, explosive barrel, explosive barrel and the chemicals dosing plant of band safety valve can be made as many groups.
Feed water accurate Automatic Dosage Control of Additives device of the utility model cogeneration adopts technique scheme, on the basis of original feedwater chemicals dosing plant, establish the compressed air piping of PLC controller, band safety valve, on the boiler feed water pipeline, establish dissolved oxygen detector and pH value analyzer, can effectively liquid medicine be entered the boiler feed water pipeline by explosive barrel, chemicals dosing plant, detect by dissolved oxygen detector and pH value analyzer again, have safety, advantage easily.
Description of drawings
Fig. 1 represents the feed water structural representation of accurate Automatic Dosage Control of Additives device of the utility model cogeneration.
Embodiment
The feed water structure of accurate Automatic Dosage Control of Additives device of cogeneration specifies to the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1, the feed water structure of accurate Automatic Dosage Control of Additives device of the utility model cogeneration comprises explosive barrel 1, the chemicals dosing plant 2 that is connected with explosive barrel 1 pipeline, the drug feeding pipeline of chemicals dosing plant 2 and 4 band pumps 3 of boiler feed water pipeline, also establish PLC controller 8, on explosive barrel 1, be connected with the compressed air piping 12 of a band safety valve 10, in order effectively to control the pressurized air in the compressed air piping 12, with compressed air piping 12 that explosive barrel 1 is connected on establish stop valve 11, on the pipeline of 2 of explosive barrel 1 and chemicals dosing plants, establish solenoid valve 9, on chemicals dosing plant 2, establish fluid level transmitter 5, on the boiler feed water pipeline, establish dissolved oxygen detector 6 and pH value analyzer 7, PLC controller 8 and solenoid valve 9, fluid level transmitter 5, chemical feed pipe pipeline pump 3 with motor, online dissolved oxygen detector 6 and online pH value analyzer 7 control linkages.
Certainly, the utility model cogeneration is fed water accurate Automatic Dosage Control of Additives device in order to add different medicines simultaneously on boiler feed water pipeline 4, can being made as, the dosing passage of being made of the drug feeding pipeline of pipeline, chemicals dosing plant 2, chemicals dosing plant 2 and 4 band pumps 3 of boiler feed water pipeline of compressed air piping 12, explosive barrel 1, explosive barrel 1 and 2 charged magnet valves 9 of chemicals dosing plant of band safety valve 10 organizing more, present embodiment is two groups, can add oxygen scavenger hydrazine and pH value correctives morpholine simultaneously in boiler feed water pipeline 4.
The utility model cogeneration accurate Automatic Dosage Control of Additives device that feeds water utilizes pressurized air that the barreled chemicals is pressed in the chemicals dosing plant, and feedwater is detected by online dissolved oxygen detector and online pH value analyzer, control the operation of dosing pump by PLC, realize cogeneration feed water accurate dosing and whole-course automation control, have dosing accurately, reduce labour intensity, reduce the advantage of operational danger.
Claims (3)
1. a cogeneration accurate Automatic Dosage Control of Additives device that feeds water, comprise explosive barrel, the chemicals dosing plant that is connected with the explosive barrel pipeline, the drug feeding pipeline of band pump between chemicals dosing plant and boiler feed water pipeline, it is characterized in that also being provided with the PLC controller, on explosive barrel, be connected with the compressed air piping of a band safety valve, on the pipeline between explosive barrel and chemicals dosing plant, establish solenoid valve, on chemicals dosing plant, establish fluid level transmitter, on the boiler feed water pipeline, establish dissolved oxygen detector and pH value analyzer, PLC controller and solenoid valve, fluid level transmitter, the chemical feed pipe pipeline pump with motor, dissolved oxygen detector and pH value analyzer control linkage.
2. the cogeneration as claimed in claim 1 accurate Automatic Dosage Control of Additives device that feeds water, it is characterized in that with compressed air piping that explosive barrel is connected on establish stop valve.
3. the cogeneration as claimed in claim 1 accurate Automatic Dosage Control of Additives device that feeds water is characterized in that the described dosing passage of being made up of the drug feeding pipeline of band pump between pipeline, chemicals dosing plant, chemicals dosing plant and the boiler feed water pipeline of charged magnet valve between compressed air piping, explosive barrel, explosive barrel and the chemicals dosing plant of band safety valve can be made as organize more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200819518U CN202025211U (en) | 2011-03-25 | 2011-03-25 | Automatic control device for accurate adding drugs in water supplying by waste heat generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200819518U CN202025211U (en) | 2011-03-25 | 2011-03-25 | Automatic control device for accurate adding drugs in water supplying by waste heat generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202025211U true CN202025211U (en) | 2011-11-02 |
Family
ID=44850156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200819518U Expired - Fee Related CN202025211U (en) | 2011-03-25 | 2011-03-25 | Automatic control device for accurate adding drugs in water supplying by waste heat generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202025211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776424A (en) * | 2015-04-02 | 2015-07-15 | 南京祥源动力供应有限公司 | System for recovering plant condensed water |
| CN113882922A (en) * | 2021-09-16 | 2022-01-04 | 华润水泥(陆川)有限公司 | Automatic power generation control system of boiler waste heat |
-
2011
- 2011-03-25 CN CN2011200819518U patent/CN202025211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776424A (en) * | 2015-04-02 | 2015-07-15 | 南京祥源动力供应有限公司 | System for recovering plant condensed water |
| CN113882922A (en) * | 2021-09-16 | 2022-01-04 | 华润水泥(陆川)有限公司 | Automatic power generation control system of boiler waste heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20160325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |