CN213194900U - Stainless steel pipeline serial washing device for preventing microbial corrosion - Google Patents
Stainless steel pipeline serial washing device for preventing microbial corrosion Download PDFInfo
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- CN213194900U CN213194900U CN202021161129.8U CN202021161129U CN213194900U CN 213194900 U CN213194900 U CN 213194900U CN 202021161129 U CN202021161129 U CN 202021161129U CN 213194900 U CN213194900 U CN 213194900U
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Abstract
The utility model provides a prevent that nonrust steel pipeline cluster of microbial corrosion from washing device. An injection port at the upper part of the integrated serial washing water cabinet is connected with a water supplementing pipeline and a water returning pipeline; a steam pipeline is arranged at the lower part of the injection port end of the integrated cluster washing water cabinet, and heating steam is dispersed into the integrated cluster washing water cabinet through a steam injection pipe; a water supply pipeline is arranged at a suction inlet of the integrated serial washing water cabinet, and a stop valve, a water pump and an analytic deoxidizing device are connected to the water supply pipeline and are finally connected to a stainless steel pipeline through a serial washing pipeline; an inert gas charging pipeline is arranged between the analytic deoxygenation device and the stainless steel pipeline to charge inert gas from the analytic deoxygenation device to the stainless steel pipeline. The utility model discloses a low oxygen environment is established in the steam line heating, reduces the oxygen content of cluster washing water through analytic deaerator, supplies the inert gas to the stainless steel pipeline interior after the cluster washing simultaneously, disappears the microorganism, stops the microbial growth and the reproduction in the stainless steel pipeline, prevents the corrosion of stainless steel pipeline microorganism. The device is suitable for being used as a serial washing device for stainless steel pipelines of ship equipment.
Description
Technical Field
The utility model relates to a maintenance protection of boats and ships field driving system stainless steel pipeline, the protection of stainless steel cable connection are sealed and the maintenance protection of nuclear power field stainless steel pipeline, especially relate to the sealed or pressure-bearing sealed container of the underwater cable of various engineering boats and ships sealed.
Background
Stainless steel pipelines are widely applied to ship systems and nuclear power systems, and are usually used as main materials of core steam systems due to special corrosion resistance and mechanical properties. The stainless steel pipeline is inevitably formed with filth such as rust, welding slag, prick scale skin, greasy dirt in the inner wall of pipeline in shaping, installation, welding process, and above filth need be clear away before equipment operation to avoid damaging equipment, influence the normal operating of equipment, this just needs to carry out the series cleaning to pipeline system. The wash water is typically demineralized water. During serial washing and after serial washing, corresponding microorganisms are remained on the inner side of the pipe wall and the welding part of the pipeline, and in the actual engineering construction, the stainless steel pipeline needs to be put into operation after serial washing for a long time, so that a favorable environment is provided for the growth and propagation of the microorganisms. Stainless steel is less resistant to biological contamination than conventional copper alloys, microbial corrosion of stainless steel often occurs in welds and heat affected zones, and under the influence of microbes, corrosion resistance sometimes does not play a role in microbial corrosion as does carbon steel. Common microorganisms include algae, sulfate reducing bacteria, iron oxidizing bacteria and ferromanganese oxidizing bacteria, most of which are aerobic flora, and the growth and the propagation of the microorganisms can be effectively controlled by establishing a low-oxygen environment.
In order to prevent the corrosion of the stainless steel pipe of the microbial ship or nuclear power core system, a set of process protection measures of the system are required to be provided for the serial washing of the stainless steel pipeline and the maintenance after the serial washing.
Disclosure of Invention
In order to solve the problem that the microbial corrosion appears after the stainless steel pipeline cluster washes, the utility model provides a prevent that the stainless steel pipeline cluster of microbial corrosion from washing device. The device establishes the low oxygen environment, reduces the oxygen content of the serial washing water through analyzing the deaerator, supplies inert gas to the stainless steel pipeline after the serial washing simultaneously, maintains the low oxygen environment of the stainless steel pipeline, eliminates microorganisms, prevents the microorganism growth and reproduction in the stainless steel pipeline, prevents the microbial corrosion of the stainless steel pipeline, and solves the technical problem that the microbial corrosion of the stainless steel pipeline occurs after the pipeline is serially washed.
The utility model provides a scheme that technical problem adopted is:
the stainless steel pipeline serial washing device for preventing microbial corrosion comprises an integrated serial washing water cabinet, a water pump, a steam injection pipe, an analytic deoxidizing device, a duplex filter, a breather valve with a filter, a thermometer, a liquid level meter, a partition plate, a water supplementing pipeline, a water supply pipeline, a water return pipeline, a serial washing pipeline, a steam pipeline and an inert filling pipeline;
an injection port at the upper part of the integrated string washing water cabinet is connected with a water supplementing pipeline and a water return pipeline, desalted water enters the integrated string washing water cabinet through the water supplementing pipeline, one end of the water return pipeline is connected with a stainless steel pipeline, the other end of the water return pipeline is connected with a valve and a duplex filter in series to filter impurities, and the injection port is provided with a corresponding impact baffle;
a steam pipeline is arranged at the lower part of the injection port end of the integrated cluster washing water cabinet, and heating steam is dispersed into the integrated cluster washing water cabinet through a steam injection pipe;
a thermometer is arranged in the integrated serial washing cabinet and used for observing the steam heating temperature of the integrated serial washing cabinet, a liquid level meter for observing the liquid level of the integrated serial washing cabinet is also arranged, and a partition plate is arranged at the suction port of the integrated serial washing cabinet to ensure that the water quality at the suction port is relatively clean;
a water supply pipeline is arranged at a suction inlet of the integrated serial washing water cabinet, and a stop valve, a water pump and an analytic deoxidizing device are connected to the water supply pipeline and are finally connected to a stainless steel pipeline through a serial washing pipeline; an inert gas charging pipeline is arranged between the analytic deoxygenation device and the stainless steel pipeline to charge inert gas from the analytic deoxygenation device to the stainless steel pipeline;
a breather valve with a filter is arranged on the stainless steel pipeline, and the inert gas charging operation is controlled according to the oxygen content.
Furthermore, the analytic deoxygenation device comprises a Venturi tube and an inert gas generator, wherein inert gas is generated by the inert gas generator, enters the Venturi tube and is conveyed to the stainless steel pipeline through an inert gas charging pipeline.
The positive effect, because the utility model discloses a low oxygen environment is established in the steam line heating, reduces the oxygen content of cluster washing water through analytic deaerator, supplies the inert gas in the stainless steel pipeline after to the cluster simultaneously, maintains stainless steel pipeline's low oxygen environment, and the microorganism that disappears prevents in the stainless steel pipeline microorganism growth and breed, prevents stainless steel pipeline microbial corrosion. The device is suitable for being used as a serial washing device for stainless steel pipelines of ship equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a water replenishing pipeline, 2, a water return pipeline, 3, a thermometer, 4, a steam injection pipe, 5, an integrated serial washing water cabinet, 6, a liquid level meter, 7, a partition plate, 8, a water pump, 9, a water supply pipeline, 10, a desorption oxygen removal device, 11, a breather valve with a filter, 12, an inert filling pipeline, 13, a serial washing pipeline, 14, a duplex filter, 15, a steam pipeline and 16, a stainless steel pipeline are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in the figure, the stainless steel pipeline serial washing device for preventing microbial corrosion comprises an integrated serial washing water cabinet 5, a water pump 8, an analytic deoxidizing device 10, a duplex filter 14, a breather valve 11 with a filter, a water replenishing pipeline 1, a water supplying pipeline 9, a water returning pipeline 2, a serial washing pipeline 13, a steam pipeline 15 and an inert filling pipeline 12;
an injection port at the upper part of the integrated serial washing water cabinet 5 is connected with a water supplementing pipeline 1 and a water return pipeline 2, desalted water enters the integrated serial washing water cabinet 5 through the water supplementing pipeline 1, one end of the water return pipeline 2 is connected with a stainless steel pipeline 16, the other end of the water return pipeline is connected with a valve in series and a duplex filter 14 to filter impurities and enters the integrated serial washing water cabinet 5, and the injection port is provided with a corresponding impact baffle;
a steam pipeline 15 is arranged at the lower part of the injection port end of the integrated cluster washing water cabinet 5, and heating steam is dispersed into the integrated cluster washing water cabinet 5 through a steam injection pipe 4;
a thermometer 3 is arranged in the integrated serial washing cabinet 5 and is used for observing the steam heating temperature of the integrated serial washing cabinet, a liquid level meter 6 for observing the liquid level of the integrated serial washing cabinet is also arranged, and a partition plate 7 is arranged at the suction port of the integrated serial washing cabinet 5 to ensure that the water quality at the suction port is relatively clean;
a water supply pipeline 9 is arranged at a suction inlet of the integrated serial washing water cabinet, a stop valve, a water pump 8 and a resolving deaerating device 10 are connected to the water supply pipeline 9, and finally the integrated serial washing water cabinet is connected to a stainless steel pipeline 16 through a serial washing pipeline 13; an inert gas charging pipeline 12 is arranged between the analytic deoxygenation device 10 and the stainless steel pipeline 16 to charge inert gas from the analytic deoxygenation device 10 to the stainless steel pipeline 16;
a breather valve 11 with a filter is arranged on the stainless steel pipeline 16, and the inert gas charging operation is controlled according to the oxygen content.
The analytic oxygen removal device 10 comprises a venturi tube and an inert gas generator, wherein the inert gas is generated by the inert gas generator, enters the venturi tube and is sent to a stainless steel pipeline 16 through an inert gas charging pipeline 12.
The utility model discloses a theory of operation:
three forms of pipeline protection against microbial corrosion: 1) the chemical method has a new corrosion problem on stainless steel pipelines; 2) the coating method is not suitable for the main steam pipeline, the coating can be damaged when the temperature is high, and the system does not allow the coating to be dissolved; 3) and establishing a low oxygen environment.
Based on Henry's law, inert gas is mixed strongly with oxygen-containing water, oxygen dissolved in water is separated out by replacement with oxygen-free gas, oxygen content in water is reduced, microorganisms are killed, and growth and reproduction of microorganisms are organized.
The utility model discloses an establish the low oxygen environment, through analytic deaerator with fill idle equipment, guarantee the low oxygen environment of device to the growth and the reproduction of microorganism in the prevention stainless steel pipeline prevent the microbial corrosion of pipeline.
The utility model discloses a working process:
1. the demineralized water is conveyed to the integrated serial washing cabinet through the water replenishing pipeline by the external pipeline, after the device is balanced, the water level height in the water cabinet is maintained, the liquid level in the integrated serial washing cabinet is observed by the liquid level meter, and the supply of the demineralized water by the external pipeline is stopped.
2. And (3) starting a steam pipeline, opening a corresponding valve, radiating 0.2-0.4Mpa steam into the serial washing water cabinet through a steam jet pipe, heating serial washing water in the integrated serial washing water cabinet as an important measure for thermal deoxidization and temperature rise in winter, and observing a thermometer during temperature rise and deoxidization, wherein the thermal deoxidization temperature is generally 95-105 ℃.
3. Open the water supply pipe way, observe the level gauge of integrated cluster washing water cabinet, start water pump and both sides valve, open analytic oxygen-eliminating device, make the demineralized water through the deoxidization after through cluster washing pipeline to the nonrust steel pipeline of waiting to wash, the inert gas flow of analytic oxygen-eliminating device and the flow phase-match of water pump guarantee the deoxidization effect, generally can remove about 90% dissolved oxygen of aquatic.
4. After the serial washing is carried out through the stainless steel pipeline, serial washing backwater passes through a valve of the backwater pipeline to the duplex filter, impurities in the serial washing loop are filtered and precipitated through the duplex filter, a filter element of the duplex filter is replaced regularly, and the serial washing effect is guaranteed.
5. The serial washing backwater returns from the duplex filter to the integrated serial washing water cabinet through a backwater pipeline, and an impact baffle is arranged on the cabinet body at the injection inlet; in order to ensure the water quality of the water supply pipeline and prevent accidental impurities from entering the water supply pipeline, an intermediate partition plate is arranged inside the integrated serial washing cabinet.
6. After the stainless steel system is subjected to serial cleaning, the stainless steel system pipeline needs to be protected for a long time, inert gas is generated by an analytic deoxygenation device and enters the stainless steel pipeline through an inert gas charging pipeline and a valve, redundant inert gas is discharged from a breather valve, the inert gas discharged from the breather valve is monitored, and the inert gas charging is stopped when the oxygen content is lower than 5%; the breather valve plays the protection stainless steel pipeline and does not exceed design pressure, and the filter of breather valve isolates the microbial invasion of external environment.
The utility model has the advantages that:
water supply pipeline: the integrated serial washing water cabinet is connected, an external water supply system supplies demineralized water to the serial washing system, and water supply is stopped after water in the serial washing system is balanced;
a water pump: on the water supply pipeline, power of a serial washing system is provided, and serial washing flow speed is ensured to remove impurities;
a water supply pipeline: the device and accessories are used for connecting a water supply system in series, the pipeline is started from a suction inlet in the integrated serial washing water cabinet, is connected with a stop valve, a water pump and an analytic deoxygenation device in series, and is finally connected with the serial washing pipeline;
serially washing pipelines: a serial washing inlet pipeline and a serial washing outlet pipeline which are stainless steel pipelines needing serial washing respectively;
a water return pipeline: connecting a stainless steel pipeline with the serial washing integrated water tank, and connecting a valve and a duplex filter in series on a water return pipeline for filtering impurities in serial washing water and returning the serial washing water to the integrated serial washing integrated water tank;
the integrated cluster washing cabinet: the water supply starting point and the water return end point comprise:
1) the injection ports are respectively a water supplementing pipeline and a water returning pipeline, and correspond to the impact baffle;
2) a steam pipeline: consists of a valve and a steam injection pipeline. Introducing 0.2-0.4Mpa steam into the integrated serial washing water cabinet, heating to 90-105 ℃ to play a role in thermal deoxygenation, simultaneously meeting the serial washing temperature requirement and preventing the serial washing water in the pipeline from freezing in winter;
3) a thermometer: observing the steam heating temperature of the integrated serial washing water tank;
4) a clapboard: a partition board is vertically arranged at the bottom of the integrated water tank, so that the water quality at a suction port is ensured to be relatively clean;
5) a liquid level meter: and observing the liquid level of the integrated water tank by using a plate glass liquid level meter.
A duplex filter: the series washing effect evaluation system is used for filtering impurities in the series washing device and evaluating the series washing effect of the system by periodically disassembling and washing the filter element.
Analyzing the deoxidizing device: the inert gas is generated by the inert gas generator, enters the venturi tube and is sent to the stainless steel pipeline through the inert gas charging pipeline.
Charging an inert pipeline: connecting the analytic deaerating device with a stainless steel pipeline to be serially washed, starting when the pipeline is serially washed and needs to be protected by charging inert gas, charging inert gas from the analytic deaerating device to the stainless steel pipeline, and discharging the inert gas through a breather valve at the highest position; and stopping charging when the oxygen content of the discharged gas is detected to be lower than 5%.
Breather valve with filter: after the stainless steel pipeline is subjected to series washing, inert gas is filled into the stainless steel pipeline through the analytic deoxygenation device, the pressure in the stainless steel pipeline is ensured to meet the design requirement through the breather valve, and a filter of the breather valve is composed of a high-efficiency filter or a novel ceramic microbial filter; when the inerting is charged, sampling can be carried out through a breather valve, and the inerting charging is stopped when the oxygen content of the discharged inerting gas is lower than 5%; after the stainless steel pipeline is washed in series, the stainless steel pipeline is filled with inert gas for sealing, and a filter on the breather valve can prevent the invasion of environmental microorganisms.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (2)
1. Prevent nonrust steel pipeline cluster of microbial corrosion and wash device, characterized by: the device comprises an integrated serial washing water cabinet (5), a water pump (8), a desorption deoxidizing device (10), a duplex filter (14), a breather valve (11) with a filter, a water supplementing pipeline (1), a water supply pipeline (9), a water return pipeline (2), a serial washing pipeline (13), a steam pipeline (15) and an inert filling pipeline (12);
an injection port at the upper part of the integrated serial washing cabinet (5) is connected with a water supplementing pipeline (1) and a water return pipeline (2), desalted water enters the integrated serial washing cabinet (5) through the water supplementing pipeline (1), one end of the water return pipeline (2) is connected with a stainless steel pipeline (16), impurities filtered by a valve and a duplex filter (14) are connected in series at the other end of the water return pipeline and enter the integrated serial washing cabinet (5), and a corresponding impact baffle is arranged at the injection port;
a steam pipeline (15) is arranged at the lower part of the injection port end of the integrated cluster washing tank (5), and heating steam is dispersed into the integrated cluster washing tank (5) through a steam injection pipe (4);
a thermometer (3) is arranged in the integrated serial washing cabinet (5) and is used for observing the steam heating temperature of the integrated serial washing cabinet, a liquid level meter (6) for observing the liquid level of the integrated serial washing cabinet is also arranged, and a partition plate (7) is arranged at the suction port of the integrated serial washing cabinet (5) to ensure that the water quality at the suction port is relatively clean;
a water supply pipeline (9) is arranged at a suction inlet of the integrated serial washing water cabinet (5), a stop valve, a water pump (8) and a resolving deaerating device (10) are connected to the water supply pipeline (9), and finally the integrated serial washing water cabinet is connected to a stainless steel pipeline (16) through a serial washing pipeline (13); an inert gas charging pipeline (12) is arranged between the analysis deoxygenation device (10) and the stainless steel pipeline (16) to charge inert gas from the analysis deoxygenation device (10) to the stainless steel pipeline (16);
a breather valve (11) with a filter is arranged on the stainless steel pipeline (16), and the inert gas charging operation is controlled according to the oxygen content.
2. The apparatus for washing a stainless steel pipeline in series for preventing microbial corrosion according to claim 1, wherein:
the analytic deoxygenation device (10) comprises a Venturi tube and an inert gas generator, wherein inert gas is generated by the inert gas generator, enters the Venturi tube and is sent to a stainless steel pipeline (16) through an inert gas charging pipeline (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021161129.8U CN213194900U (en) | 2020-06-22 | 2020-06-22 | Stainless steel pipeline serial washing device for preventing microbial corrosion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021161129.8U CN213194900U (en) | 2020-06-22 | 2020-06-22 | Stainless steel pipeline serial washing device for preventing microbial corrosion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888005A (en) * | 2022-04-27 | 2022-08-12 | 渤海造船厂集团有限公司 | Hydraulic system cleanliness control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888005A (en) * | 2022-04-27 | 2022-08-12 | 渤海造船厂集团有限公司 | Hydraulic system cleanliness control method |
| CN114888005B (en) * | 2022-04-27 | 2023-10-13 | 渤海造船厂集团有限公司 | Hydraulic system cleanliness control method |
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