CN206291305U - A kind of heating network anticorrosion chemicals dosing plant - Google Patents
A kind of heating network anticorrosion chemicals dosing plant Download PDFInfo
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- CN206291305U CN206291305U CN201621362710.XU CN201621362710U CN206291305U CN 206291305 U CN206291305 U CN 206291305U CN 201621362710 U CN201621362710 U CN 201621362710U CN 206291305 U CN206291305 U CN 206291305U
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- dissolved oxygen
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Abstract
A kind of heating network anticorrosion chemicals dosing plant, it is characterized in that online pH tables, online electrical conductivity table, the pole cup entrance of online dissolved oxygen meter are connected with the probe tube outlet of heating network pipeline, pole cup is exported and is connected with sampling water collection tank entrance, the outlet of sampling water collection tank is connected with the entrance of sampling Water circulation pump, and the outlet for sampling Water circulation pump is connected with heating network pipeline；Online pH tables, online electrical conductivity table, the detection signal of online dissolved oxygen meter are input into Programmable Logic Controller, through Programmable Logic Controller according to specified criteria computing in pre-set programs after, output to dosing pump adjusts the chemical feeding quantity of dosing pump；Programmable Logic Controller is adjusted repeatedly, water quality index is kept basicly stable automatically, meets the requirement of standard.Advantage is to be provided simultaneously with improving pH, reduce dissolved oxygen and anticorrosion double effects；The on-line checking of n.s water loss is especially realized in non-warm season.
Description
Technical field
The utility model is related to belong to corrosion protection technology field, a kind of heating network anticorrosion chemicals dosing plant.
Background technology
In recent years, because heating network frequently occurs leakage problem, the winter for frequently resulting in stops the generation of warm accident, causes
Serious social influence, therefore cause the most attention of society.At present, the domestic treatment technology for generally using has heating power to remove
Oxygen method, ammonification method etc..These methods improve the water quality index of heating network to varying degrees, but also there is respective asking
Topic.
Thermal de-aeration method reaches the purpose for slowing down corrosion by reducing the oxygen content in hot net water, there is shortcoming and is mainly
System is complex, and operation is inconvenient, and deaerating effect is unstable, and is inconvenient to use in non-warm season；Ammonification method passes through
The pH value of hot net water is improved, the purpose for slowing down corrosion is reached, there is shortcoming and be mainly is influenceed by system water supplement amount, pH is adjusted not
It is easy to control, and can not prevent there is the spot corrosion that corrosive ion causes in system；The above method is in current thermal power plant
Used in heating network anti-corrosion protection, but protection effect is generally poor.
Existing to report display, heating network is embedded in underground, and the seepage that corrosion causes occurs more frequently, especially in early days not
Easily realize；Once revealing, influenceed by surface structures etc., it is difficult to treatment and reparation, cause heat supply more long to interrupt, cause tight
The social influence of weight.Be necessary to overcome the shortcomings of existing method, realize reliable and stable, automatic running, annual convenient use it is anti-
Caustic solution.
The content of the invention
The purpose of this utility model is to provide a kind of heating network anticorrosion chemicals dosing plant, by special purpose device anticorrosion
Medicament is added in heating network, effectively enhancing corrosion protection effect.
This heating network anticorrosion chemicals dosing plant of the present utility model, including online pH tables, online electrical conductivity table, online
Dissolved oxygen meter, molten medicine-chest, dosing pump, Programmable Logic Controller samples water collection tank, samples Water circulation pump, it is characterised in that online
PH tables, online electrical conductivity table, the pole cup entrance of online dissolved oxygen meter are connected with the probe tube outlet of heating network pipeline, electrode
Cup outlet is connected with sampling water collection tank entrance, and the outlet of sampling water collection tank is connected with the entrance of sampling Water circulation pump, sampling water
The outlet of reuse pump is connected with heating network pipeline；Online pH tables, online electrical conductivity table, online dissolved oxygen meter detection signal it is defeated
Enter to Programmable Logic Controller, through Programmable Logic Controller according to specified criteria computing in pre-set programs after, output to dosing pump, regulation
The chemical feeding quantity of dosing pump；Programmable Logic Controller is adjusted repeatedly, water quality index is kept basicly stable automatically, meets wanting for standard
Ask.
The utility model has the advantages that：(1) using online pH tables, online electrical conductivity table, online dissolved oxygen meter real-time detection
Heating network water quality, and control dosing pump；(2) chemicals for being added to heating network is provided simultaneously with improving pH, reduces dissolving
Oxygen and anticorrosion double effects；(3) in-line meter sampling water is recycled to collecting box and is recycled with reuse pump, realizes sampling
Recycling for water, especially realizes the on-line checking of n.s water loss in non-warm season.
Brief description of the drawings
Fig. 1 is process chart of the present utility model.
In figure：1 online pH tables, 2 online electrical conductivity tables, 3 online dissolved oxygen meters, 4 molten medicine-chests, 5 dosing pumps, 6 programmable controls
Device processed, 7 sampling water collection tanks, 8 sampling Water circulation pumps.
Specific embodiment
As shown in figure 1, in the utility model heating network anticorrosion chemicals dosing plant, be made up of molten medicine-chest 4 and dosing pump 5 and added
Medicine system is to heating network dosing；By online pH tables 1, online electrical conductivity table 2, online dissolved oxygen meter 3 and the structure of Programmable Logic Controller 6
Into detecting and controlling system realize automatically control dosing；The sample water being made up of sampling water collection tank 7, sampling Water circulation pump 8 is returned
Receipts system realizes the on-line checking of n.s water loss.
During operation, the detecting and controlling system circuit opens the molten medicine-chest 4 and dosing pump 5 of medicine system, adjusts chemical feeding quantity
To setting value, to heating network dosing.As medicament is added in heating network by dosing pump 5, the pH and electrical conductivity of hot net water
Raise, dissolved oxygen reduction.Online pH tables 1, online electrical conductivity table 2, online dissolved oxygen meter 3 detect hot net water water quality index and reach
During high limit setting value, Programmable Logic Controller 6, by logical operation, controls the flow of dosing pump 5 according to specified criteria in pre-set programs,
It is automatic to reduce medicament addition, reduce water quality index.When water quality index is less than lower bound setting value, Programmable Logic Controller 6 is controlled
The flow of dosing pump processed 5, is automatically increased medicament addition, raises water quality index.So adjust repeatedly, automatically protect water quality index
Hold basicly stable, meet the requirement of standard.
Claims (1)
1. a kind of heating network anticorrosion chemicals dosing plant, including online pH tables (1), online electrical conductivity table (2), online dissolved oxygen meter
(3), molten medicine-chest (4), dosing pump (5), Programmable Logic Controller (6), sampling water collection tank (7), sampling Water circulation pump (8) is constituted,
It is characterized in that：Online pH tables (1), online electrical conductivity table (2), the pole cup entrance and heating network of online dissolved oxygen meter (3)
The probe tube outlet of pipeline is connected, and pole cup outlet is connected with sampling water collection tank (7) entrance, sampling water collection tank (7) outlet
Entrance with sampling Water circulation pump (8) is connected, and the outlet of sampling Water circulation pump (8) is connected with heating network pipeline；Online pH tables
(1), online electrical conductivity table (2), the detection signal of online dissolved oxygen meter (3) are input into Programmable Logic Controller (6), through programmable control
After device (6) processed is according to specified criteria computing in pre-set programs, output to dosing pump (5), the chemical feeding quantity of regulation dosing pump (5)；Can
Programmable controller (6) is adjusted repeatedly, water quality index is kept basicly stable automatically, meets the requirement of standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362710.XU CN206291305U (en) | 2016-12-13 | 2016-12-13 | A kind of heating network anticorrosion chemicals dosing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362710.XU CN206291305U (en) | 2016-12-13 | 2016-12-13 | A kind of heating network anticorrosion chemicals dosing plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206291305U true CN206291305U (en) | 2017-06-30 |
Family
ID=59098354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621362710.XU Active CN206291305U (en) | 2016-12-13 | 2016-12-13 | A kind of heating network anticorrosion chemicals dosing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206291305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824133A (en) * | 2019-03-20 | 2019-05-31 | 西安热工研究院有限公司 | One kind being used for heat supply network circulation corrosion-resistant monitoring and control method and device |
-
2016
- 2016-12-13 CN CN201621362710.XU patent/CN206291305U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824133A (en) * | 2019-03-20 | 2019-05-31 | 西安热工研究院有限公司 | One kind being used for heat supply network circulation corrosion-resistant monitoring and control method and device |
| CN109824133B (en) * | 2019-03-20 | 2024-03-08 | 西安热工研究院有限公司 | Monitoring control method and device for corrosion prevention of heat supply network circulating water system |
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