CN219489704U - Automatic slight alkali adjusting device of cold water in generator - Google Patents
Automatic slight alkali adjusting device of cold water in generator Download PDFInfo
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- CN219489704U CN219489704U CN202320331987.XU CN202320331987U CN219489704U CN 219489704 U CN219489704 U CN 219489704U CN 202320331987 U CN202320331987 U CN 202320331987U CN 219489704 U CN219489704 U CN 219489704U
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- adjusting device
- alkali
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Abstract
The utility model provides an automatic slight alkali adjusting device of cold water in generator, automatic slight alkali adjusting device's entry is linked together through pipeline and demineralized water main pipe, the export is linked together through pipeline and pipeline blender's entry, pipeline blender's export is linked together through the flowmeter of installing on the pipeline with the entry of the interior cold water tank of generator, the overflow mouth of the interior cold water tank of generator is linked together through overflow pipeline and buffer tank's entry, buffer tank's export links to each other with the condensate water hot well through the pipeline, this device can effectively control interior cold water pH, control system conductivity is in standard range, do not produce the discarded object, a high-efficient environmental protection's processing system.
Description
Technical Field
The utility model belongs to the technical field of industrial water treatment devices or equipment, and particularly relates to an automatic micro-alkali adjusting device for cold water in a generator.
Background
With the improvement of environmental protection requirements, the exhaust emission control of the steel industry is more and more strict, so that the environmental protection requirements are better met, better economic benefits are brought to steel enterprises, and the generator sets are rapidly increased in the steel enterprises. However, in the running process, the problem that the copper ion content of cold water in the generator exceeds the standard appears in different degrees in many power plants, and the service life and safe running of the generator set are seriously influenced.
The stator of the generator adopts water cooling, and the rotor winding is also water cooling, namely a double-water internal cooling system. The stator and the rotor share an independent self-circulation system, the internal cold water is sucked out of the water tank, enters the cooler after being boosted, passes through the filter screen, enters the generator coil, and the outlet water flows back to the water tank, so that the water is circulated continuously, and the supplementing water is secondary desalted water. The method for controlling the quality of cold water in the generator in the prior art mainly comprises (1) a mixed bed treatment method; (2) membrane alkalization treatment; (3) adding condensation water into the internal cold water; (4) corrosion inhibitor method. However, the method (1) and (2) have short operation period and high operation cost, the method (3) has the problem that ammonium ions are easy to cause ammonia corrosion, and the corrosion inhibitor of the method (4) needs specific conditions for use, and has high toxicity and high price. In the prior art, the cold water treatment is mainly carried out by adopting an ion exchange and alkali adding method to control the quality of the cold water in the generator, namely a small mixed bed treatment method, wherein anion and cation ion exchange resins are respectively arranged in the small mixed bed to remove anions and cations in water, thereby achieving the aim of purifying the water quality; in addition, the common resin in the small mixed bed often leaks a large amount of low molecular polymer, so that the water quality of cold water in the generator is polluted, the pH value of the effluent of the small mixed bed is lower, the pH value of the effluent of the small mixed bed is usually lower than 6.5, and the pH value of the effluent of the small mixed bed is not smaller than 7.0, which is not in accordance with the national power industry standard. In addition, the design of the small mixed bed lacks necessary monitoring instruments, the system water quality cannot be detected in real time, and at present, although most power plants are put into the small mixed bed in China, the defects are caused.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the automatic micro-alkali adjusting device for the internal cooling water of the generator, which has reasonable design, simple structure, energy conservation and environmental protection.
The technical scheme adopted for solving the technical problems is as follows: an inlet of the automatic micro-alkali regulating device is communicated with a desalted water main pipe through a pipeline, an outlet of the automatic micro-alkali regulating device is communicated with an inlet of a pipeline mixer through a pipeline, an outlet of the pipeline mixer is communicated with an inlet of a cold water tank in the generator through a flowmeter arranged on the pipeline, an overflow port of the cold water tank in the generator is communicated with an inlet of a buffer water tank through an overflow pipeline, and an outlet of the buffer water tank is connected with a condensate water heating well through a pipeline.
The outlet pipeline of the pipeline mixer is provided with a conductivity and PH measuring point, and the data of the conductivity and PH measuring point monitoring are fed back to the automatic micro-alkali adjusting device.
The automatic micro-alkali regulating device is controlled by a PID regulator or a PLC controller.
The overflow pipeline is of a telescopic structure and is adjustable in height.
A liquid level monitor is arranged in a buffer water tank, a solenoid valve is arranged at a water outlet of the buffer water tank, and the liquid level monitor and the solenoid valve are electrically connected with an automatic micro-alkali adjusting device.
The alkaline medicine adopted by the automatic slight alkali adjusting device is sodium hydroxide or ammonia water.
The utility model adopts the automatic micro-alkali regulating device arranged at the water inlet end of the internal cooling water tank of the generator, the automatic micro-alkali regulating device automatically regulates the adding amount of alkaline medicines according to the electric conductivity of the outlet of the pipeline mixer and the PH feedback signal, and the PH of the desalted water entering the internal cooling water tank of the generator is improved by adding micro-alkaline substances into the desalted water, so as to achieve the aim of improving the PH value of the internal cooling water system, improve the PH value of the internal cooling water system, reduce the corrosiveness of the internal cooling water, reduce the corrosion of hollow copper bars, improve the safety of the generator set, remove redundant internal cooling water through overflow pipelines, maintain the liquid level of the cold water tank of the internal generator, ensure that the height of the overflow pipelines is adjustable, meet the running requirements of different systems, and finally realize the system pollution-free discharge by means of the negative pressure suction of the condensed water into the buffer water tank.
Drawings
Fig. 1 is a schematic diagram of the structure of an embodiment of the present utility model.
In the figure: 1. an automatic slight alkali adjusting device; 2. a pipe mixer; 3. a flow meter; 4. a cold water tank in the generator; 5. an overflow pipe; 6. buffer water tank.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, but the present utility model is not limited to these examples.
Example 1
In fig. 1, the inlet of the automatic micro-alkali regulating device 1 is communicated with a desalted water main pipe through a pipeline, the outlet of the automatic micro-alkali regulating device is communicated with the inlet of a pipeline mixer 2 through a pipeline, the outlet of the pipeline mixer 2 is communicated with the inlet of a cold water tank 4 in the generator through a flowmeter 3 arranged on the pipeline, the overflow port of the cold water tank 4 in the generator is communicated with the inlet of a buffer water tank 6 through an overflow pipeline 5, and the height of the overflow pipeline 5 is adjustable, so that the running requirements of different systems are met. The outlet of the buffer water tank 6 is connected with a condensate water heating well through a pipeline, and the automatic micro-alkali adjusting device 1 of the embodiment consists of an adjusting controller, a man-machine exchange interface, a precise metering pump, an online instrument and the like. The adopted regulating controller is controlled by a PID regulator or a PLC controller, a conductivity and PH measuring point is arranged on an outlet pipeline of the pipeline mixer 2, and the data of conductivity and PH measuring point monitoring are fed back to the automatic micro-alkali regulating device 1. The controller controls the precise metering pump by collecting on-line conductivity and PH meter signals so as to achieve the aim of adjusting the dosage of the alkaline medicine, and particularly, the alkaline medicine adopted by the automatic micro-alkali adjusting device 1 is alkaline liquid medicine such as sodium hydroxide or ammonia water.
Further, a liquid level monitor is arranged in the buffer water tank 6, a water outlet of the buffer water tank 6 is provided with an electromagnetic valve, the liquid level monitor is electrically connected with the automatic micro-alkali adjusting device 1, liquid level information in the buffer water tank 6 is fed back to the automatic micro-alkali adjusting device 1 through the liquid level monitor, the automatic micro-alkali adjusting device 1 sends corresponding instructions according to the liquid level, the electromagnetic valve is opened when the liquid level of the buffer water tank 6 is high, the liquid is discharged, the electromagnetic valve is closed when the liquid level of the buffer water tank 6 is low, and air can be prevented from entering a condensate water heating well, so that the condensate water heating well has a function of evacuating prevention.
Claims (6)
1. An automatic slight alkali adjusting device of generator interior cold water, its characterized in that: the inlet of the automatic micro-alkali regulating device (1) is communicated with the desalted water main pipe through a pipeline, the outlet of the automatic micro-alkali regulating device is communicated with the inlet of the pipeline mixer (2) through a pipeline, the outlet of the pipeline mixer (2) is communicated with the inlet of the cold water tank (4) in the generator through a flowmeter (3) arranged on the pipeline, the overflow port of the cold water tank (4) in the generator is communicated with the inlet of the buffer water tank (6) through an overflow pipeline (5), and the outlet of the buffer water tank (6) is connected with the condensate water heating well through a pipeline.
2. The automatic micro-alkali adjusting device for cold water in a generator according to claim 1, wherein: the outlet pipeline of the pipeline mixer (2) is provided with a conductivity and PH measuring point, and the data of conductivity and PH measuring point monitoring are fed back to the automatic micro-alkali regulating device (1).
3. The automatic micro-alkali adjusting device for cold water in a generator according to claim 1, wherein: the automatic micro-alkali adjusting device (1) is controlled by a PID regulator or a PLC controller.
4. The automatic micro-alkali adjusting device for cold water in a generator according to claim 1, wherein: the height of the overflow pipeline (5) is adjustable in a telescopic structure.
5. The automatic micro-alkali adjusting device for cold water in a generator according to claim 1, wherein: the buffer water tank (6) is internally provided with a liquid level monitor, the water outlet of the buffer water tank (6) is provided with an electromagnetic valve, and the liquid level monitor and the electromagnetic valve are electrically connected with the automatic micro-alkali regulating device (1).
6. The automatic micro-alkali adjusting device for cold water in a generator according to claim 1, wherein: the alkaline medicine adopted by the automatic micro-alkali regulating device (1) is sodium hydroxide or ammonia water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320331987.XU CN219489704U (en) | 2023-02-28 | 2023-02-28 | Automatic slight alkali adjusting device of cold water in generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320331987.XU CN219489704U (en) | 2023-02-28 | 2023-02-28 | Automatic slight alkali adjusting device of cold water in generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219489704U true CN219489704U (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320331987.XU Active CN219489704U (en) | 2023-02-28 | 2023-02-28 | Automatic slight alkali adjusting device of cold water in generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219489704U (en) |
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2023
- 2023-02-28 CN CN202320331987.XU patent/CN219489704U/en active Active
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