CN103674622A - Cumulative corrosion product sampling device - Google Patents
Cumulative corrosion product sampling device Download PDFInfo
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- CN103674622A CN103674622A CN201310672657.8A CN201310672657A CN103674622A CN 103674622 A CN103674622 A CN 103674622A CN 201310672657 A CN201310672657 A CN 201310672657A CN 103674622 A CN103674622 A CN 103674622A
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Abstract
The invention discloses a cumulative corrosion product sampling device. The cumulative corrosion product sampling device comprises a sample water inlet pipe (1), a first needle-shaped valve (2), a metal hose (3), a plug valve (4), a sampling filter (5), a sewage discharging filter (6), an automatic steady flow shunt-off valve (7), a flow sensor (8) and a flow integrating control instrument (9) which are connected in sequence through pipelines; a bypass pipeline is connected between the first needle-shaped valve (2) and the metal hose (3); a second needle-shaped valve (10) and a glass rotor flow meter (11) are arranged on the bypass pipeline in sequence. The cumulative corrosion product sampling device disclosed by the invention is reasonable in structural design and convenient to use; the flow of fluid can be controlled accurately; the flow of the fluid can be measured precisely; the total flow is integrated by the flow integrating control instrument; signals can be received and output to realize intelligent remote monitoring; moreover, the sampling can stop automatically; the automation degree and the intelligence degree are high; the sampling amount is large; the sampling accuracy is high; the work efficiency is high; the application range is wide.
Description
Technical field
The present invention designs corrosion product sampling apparatus, is specifically related to the accumulation corrosion product sampling apparatus for therrmodynamic systems such as power station (comprising nuclear power station), petrochemical factory, Industrial Boilers.
Background technology
Control and the protection of corrosion are the main concerned issues of the field therrmodynamic system run durations such as power station, petrochemical factory, Industrial Boiler.If corrosion is not carried out to necessary control, will cause generating efficiency to reduce, when serious, will cause the damage of equipment.
To therrmodynamic system, corrosion is controlled, and first will implement effectively and monitoring accurately corrosion condition.Traditional existing corrosion product Sampling techniques, adopt artificial sample mode to carry out more.Because adopting artificial sample mode, only can gather in short-term sample water a small amount of in therrmodynamic system at every turn, can not realize accumulated samples, because sampling quantity is less, sample representativeness is poor, be difficult to the corrosion condition of therrmodynamic system to carry out comprehensive and accurate monitoring, be also difficult to the corrosion product of different shape to be analyzed respectively.Meanwhile, because adopting artificial sample mode, labour intensity is higher, is also difficult to realize real-time sampling.
Therefore, necessary on the basis of prior art, design research and development can gather the medium in therrmodynamic system continuously at arbitrary period, to sampling flow, can realize automatic adjusting, volume to sampling can add up automatically, adopt filtration and ion exchange technique can catch respectively and enrichment solid-state in institute's sample water and corrosion product ionic state, be convenient to the device of subsequent analysis judgement.
Summary of the invention
Goal of the invention: the object of the invention is in order to solve the deficiency of existing artificial sample, a kind of reasonable in design, easy to use is provided, can accurately control fluid flow, by the accurate measuring flow of flow sensor, and by flow accumulation controller integrating total flow, can accept, output signal realizes intelligent remote monitoring, and can reach the accumulation corrosion product sampling apparatus that automatically stop sampling after setting total flow terminal.This sampling apparatus can be dismantled resampling filter device easily with handling sampling filter disc, is convenient to follow-up mensuration and the analysis of carrying out corrosion product, determines type and the content of corrosion product.Owing to adopting automated manner, sampling quantity is large, and sampling precision is high, and work efficiency is high, has wide range of applications.
Technical scheme: in order to realize above object, the technical scheme that the present invention takes is:
Accumulation corrosion product sampling apparatus, it comprises: by pipeline successively connected sample water inlet pipe, the first needle valve, metal hose, stopcock, resampling filter device, drain filter, automatic steady current shut-off valve, tensimeter, flow sensor and flow accumulation controller;
Between the first described needle valve and metal hose, be connected with bypass duct, the second needle valve and glass rotameter are installed on bypass duct successively.
As preferred version, above-described accumulation corrosion product sampling apparatus, wherein the first needle valve and the second needle valve are angle type needle valve.
As preferred version, above-described accumulation corrosion product sampling apparatus, is provided with tensimeter on described automatic steady current shut-off valve and the pipeline between flow sensor, by tensimeter, can show in real time the fluid actual pressure by pipeline portions.
As preferred version, above-described accumulation corrosion product sampling apparatus, can install filtration membrane and/or ion exchange membrane sheet in described resampling filter device.Described resampling filter device is applicable to the sampling filter disc that various seizure corrosion products are installed, inside is provided with high precision filter disc pallet, the filter disc that can guarantee to sample is operated under full flow state, and indeformablely do not break, and the sampling filter disc (as: filtration membrane and ion exchange membrane sheet) of various seizure corrosion products can conveniently be installed in resampling filter device inside, thereby can be applicable to various accumulation corrosion products to sample targetedly.
As preferred version, above-described accumulation corrosion product sampling apparatus, described flow accumulation controller is for the total flow of integrating sample water, and can when reaching flow accumulation terminal, automatically close sampling branch road, also exportable alerting signal, traffic termination signal, and dispose digital communication module, can with tele-control system communication, thereby can realize data double-way transmission and Long-distance Control, robotization and intelligent degree are high.
Above-described accumulation corrosion product sampling apparatus: automatic steady current shut-off valve wherein, can, according to actual setpoint needs, regulate the flow of sampling fluid automatically; The accurate measuring flow of flow sensor wherein, and by flow accumulation controller integrating total flow.
As preferred version, above-described accumulation corrosion product sampling apparatus, after drain filter is arranged on resampling filter device, both convenient sampling, can not sample or automatic steady current shut-off valve and flow sensor protected lavage specimens water lines in the situation that again, anti-locking apparatus damages, and increases the service life; And before stopcock is arranged on resampling filter device, convenient high-speed switch stream when starting sampling and stopping sampling; And between the first needle valve and stopcock, adopt metal hose to be connected, be convenient to the dismounting of resampling filter device.
As preferred version, above-described accumulation corrosion product sampling apparatus, described automatic steady current shut-off valve, flow sensor, flow accumulation controller are connected, wherein flow accumulation controller can arrange arbitrarily required sample discharge and total flow, by automatic steady current shut-off valve automatically regulate and keep that sample discharge is constant, the accurate measuring flow of flow sensor, flow accumulation controller integrating total flow.
As preferred version, above-described accumulation corrosion product sampling apparatus, described bypass conduit, when automatic steady current shut-off valve is in flow control scope during adjust flux, by the second needle valve, from the unnecessary sample water of bypath system venting, and can observe by glass rotameter the flow of bypass sample water.Wherein blowdown cup is designed to opened type, prevents sample water blowdown back pressure and sample water " venturi " phenomenon.
As preferred version, above-described accumulation corrosion product sampling apparatus, adopts box-type Integrated design, is convenient to integrated installation and comprehensively arranges with other sampling apparatuses.And functional unit and observing apparatus are arranged in to front panel, intuitive and convenient; Pipeline, blowdown, flow sensor etc. are arranged in box house, attractive in appearance neat.
The present invention can gather the medium in therrmodynamic system pipeline (being generally water) and volume accumulation automatically, and the corrosion product of the different shape comprising in medium (solid-state and ionic state) is caught respectively to sampling.According to the cumulative volume of sampling media and the amount of corrosion product wherein, can to the corrosion condition of therrmodynamic system, judge easily, and can, in conjunction with chemical analysis means, can accurately calculate the corrosion rate of therrmodynamic system.
The principle of work of accumulation corrosion product sampling apparatus of the present invention is: first, according to concrete working condition requirement, required sample flow and total flow terminal are set on flow accumulation controller.By automatic steady current shut-off valve, adjust in real time and keep that sample discharge is constant, bypass conduit is discharged in the situation of unnecessary sample water, the sampling filter disc of various seizure corrosion products is installed respectively by resampling filter device, so that follow-up, carry out corrosion product analysis, determine type and the content of corrosion product; By the accurate measuring flow of flow sensor, flow accumulation controller integrating total flow, and automatically close sampling branch road can arrive flow accumulation terminal time, last sample water enters opened type blowdown cup and discharges, and can output alarm signal, traffic termination signal, and configurable digital communication module, with tele-control system communication, and realize data double-way transmission and Long-distance Control.
Beneficial effect: accumulation corrosion product sampling apparatus of the present invention is compared and had the following advantages with existing artificial sample technology:
1, can realize to corrosion product continuously, for a long time sampling, sample representativeness is high.
2, automatic steady current shut-off valve can maintain the constant current of sample water automatically, without manual shift, can improve measurement device precision, and automaticity is high.
3, flow accumulation controller can be accepted the signal of external control system, and signal can be outputed to external control system, realizes intellectuality and remote monitoring, and work efficiency is higher, applied widely.
4, flow accumulation controller can arrange arbitrarily sample discharge and total flow, can the in the situation that of low discharge, guarantee high-acruracy survey.
5, resampling filter device, is convenient to dismounting, easy to clean, is applicable to the sampling filter disc of the various seizure corrosion products of clamping, and inside is provided with high precision filter disc pallet, guarantees sampling filter disc is indeformable in sampling process not break, and sample water can uniform-flow filter.
6, whole device integration is high, and robotization and intelligent degree are high, and excellent performance can have been saved a large amount of manual operation flow processs of sampling process, and work efficiency is high.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of accumulation corrosion product sampling apparatus provided by the invention.
Fig. 2 is the panel layout of accumulation corrosion product sampling apparatus provided by the invention.
Fig. 3 is the device arrangements figure of accumulation corrosion product sampling apparatus provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, only for the present invention is described, is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of accumulation corrosion product sampling apparatus, it comprises: by pipeline successively connected sample water inlet pipe (1), the first needle valve (2), metal hose (3), stopcock (4), resampling filter device (5), drain filter (6), automatic steady current shut-off valve (7), flow sensor (8) and flow accumulation controller (9);
Between described the first needle valve (2) and metal hose (3), be connected with bypass duct, the second needle valve (10) and glass rotameter (11) are installed on bypass duct successively.
Above-described accumulation corrosion product sampling apparatus, the first needle valve (2) and the second needle valve (10) are angle type needle valve.
Above-described accumulation corrosion product sampling apparatus, is provided with tensimeter (12) on described automatic steady current shut-off valve (7) and the pipeline between flow sensor (8).
Above-described accumulation corrosion product sampling apparatus, can install filtration membrane and/or ion exchange membrane sheet in described resampling filter device (5).
Above-described accumulation corrosion product sampling apparatus, can be provided with digital communication module in described flow accumulation controller (9), is connected by communication with tele-control system.
During accumulation corrosion product sampling apparatus real work provided by the invention, first according to concrete working condition requirement, on flow accumulation controller (9), required sample flow and total flow are set, by automatic steady current shut-off valve (7), adjust in real time and keep that sample discharge is constant, bypass conduit is discharged in the situation of unnecessary sample water, the sampling filter disc of various seizure corrosion products is installed respectively by resampling filter device (5), so that follow-up, carry out corrosion product analysis, determine type and the content of corrosion product; By the accurate measuring flow of flow sensor (8), and by flow accumulation controller (9) integrating total flow, and automatically close sampling branch road can arrive flow accumulation terminal time, last sample water enters the discharge of blowdown cup.It can also be exported and comprise alerting signal, traffic termination signal, and configurable digital communication module, with tele-control system communication and realize data double-way transmission and Long-distance Control.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. accumulate corrosion product sampling apparatus, it is characterized in that, it comprises: by pipeline successively connected sample water inlet pipe (1), the first needle valve (2), metal hose (3), stopcock (4), resampling filter device (5), drain filter (6), automatic steady current shut-off valve (7), flow sensor (8) and flow accumulation controller (9);
Between described the first needle valve (2) and metal hose (3), be connected with bypass duct, the second needle valve (10) and glass rotameter (11) are installed on bypass duct successively.
2. accumulation corrosion product sampling apparatus according to claim 1, is characterized in that, the first needle valve (2) and the second needle valve (10) are angle type needle valve.
3. accumulation corrosion product sampling apparatus according to claim 1, is characterized in that, on described automatic steady current shut-off valve (7) and the pipeline between flow sensor (8), tensimeter (12) is installed.
4. accumulation corrosion product sampling apparatus according to claim 1, is characterized in that, in described resampling filter device (5), can install filtration membrane and/or ion exchange membrane sheet.
5. according to the accumulation corrosion product sampling apparatus described in claim 1 to 4 any one, it is characterized in that, in described flow accumulation controller (9), digital communication module can be installed, be connected by communication with tele-control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672657.8A CN103674622B (en) | 2013-12-12 | 2013-12-12 | Accumulation corrosion product sampling apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310672657.8A CN103674622B (en) | 2013-12-12 | 2013-12-12 | Accumulation corrosion product sampling apparatus |
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| CN103674622A true CN103674622A (en) | 2014-03-26 |
| CN103674622B CN103674622B (en) | 2015-09-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424953A (en) * | 2015-11-18 | 2016-03-23 | 华北电力大学 | Equal state monitoring system and method for corrosion products in power station steam-water system working medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978506A (en) * | 1988-05-18 | 1990-12-18 | Westinghouse Electric Corp. | Corrosion product monitoring method and system |
| JPH0886877A (en) * | 1994-09-19 | 1996-04-02 | Hitachi Ltd | Method and apparatus for controlling dust collection of dust radiation monitor and dust sampler |
| CN202305288U (en) * | 2011-10-13 | 2012-07-04 | 秦山第三核电有限公司 | Spent fuel dry type storage barrel sample drying device |
| CN103323287A (en) * | 2013-06-04 | 2013-09-25 | 国家电网公司 | Automatic sampling device for sampling furfural in transformer oil and sampling method |
| CN203643212U (en) * | 2013-12-12 | 2014-06-11 | 中广核工程有限公司 | Cumulative corrosion product sampling device |
-
2013
- 2013-12-12 CN CN201310672657.8A patent/CN103674622B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978506A (en) * | 1988-05-18 | 1990-12-18 | Westinghouse Electric Corp. | Corrosion product monitoring method and system |
| JPH0886877A (en) * | 1994-09-19 | 1996-04-02 | Hitachi Ltd | Method and apparatus for controlling dust collection of dust radiation monitor and dust sampler |
| CN202305288U (en) * | 2011-10-13 | 2012-07-04 | 秦山第三核电有限公司 | Spent fuel dry type storage barrel sample drying device |
| CN103323287A (en) * | 2013-06-04 | 2013-09-25 | 国家电网公司 | Automatic sampling device for sampling furfural in transformer oil and sampling method |
| CN203643212U (en) * | 2013-12-12 | 2014-06-11 | 中广核工程有限公司 | Cumulative corrosion product sampling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424953A (en) * | 2015-11-18 | 2016-03-23 | 华北电力大学 | Equal state monitoring system and method for corrosion products in power station steam-water system working medium |
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Granted publication date: 20150909 Termination date: 20191212 |