CN207472512U - The leak detection disk of condenser hotwell leakage detection apparatus - Google Patents
The leak detection disk of condenser hotwell leakage detection apparatus Download PDFInfo
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- CN207472512U CN207472512U CN201721355565.7U CN201721355565U CN207472512U CN 207472512 U CN207472512 U CN 207472512U CN 201721355565 U CN201721355565 U CN 201721355565U CN 207472512 U CN207472512 U CN 207472512U
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- water
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- inlet pipeline
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Abstract
The leak detection disk of condenser hotwell leakage detection apparatus.It is related to the leak detection disk of condenser hotwell device in technical field of nuclear power, more particularly to condenser hotwell leakage detection apparatus.It is compact-sized, detection efficiency is high, detection data is accurate, extend instrument and meter service life.Including inlet pipeline, manual sampling branch and chemical measurement branch；One end of the inlet pipeline is equipped with water-in flange, and the other end is equipped with backwater valve, and the throttle valve concatenated is equipped between the water-in flange and backwater valve；The water inlet end of the manual sampling branch and water outlet are connected between the water-in flange and throttle valve, and the manual sampling branch road is respectively equipped with pressure gauge and sampling valve；The water inlet of the chemical measurement branch is connected between the water-in flange and throttle valve, and water outlet is connected between the throttle valve and backwater valve.The utility model has the characteristics that compact-sized, detection efficiency is high, detection data is accurate, extends instrument and meter service life.
Description
Technical field
The utility model is related to condenser hotwell devices in technical field of nuclear power, more particularly to condenser hotwell leakage detection apparatus
Leak detection disk.
Background technology
The sump of condenser collective low condensation water.Full name " condenser hotwell ", is commonly called as " hot well ".Mounted on steamer
A kind of upright cylinder-like part of machine surface condenser bottom.It is coagulated to collect the master for continuously being condensed by a large amount of steam exhaust and being generated
It bears water.
Condenser leakage detection device is that exhaust steam pressure is reduced in nuclear power plant, Steam Power Circulation efficiency is improved, condenses steam discharge
Important equipment for solidifying feedwater.Condenser pipe in condenser generally using copper pipe or titanium tube, with condenser tube sheet consolidate by condenser pipe
It connects mode and generally connects mode using rising.With in unit operation vibration, expand with heat and contract with cold and influence phenomena such as chemical attack, coagulate
Cooling water leakage accident can occur for vapour device, and its leakage point generally rises in tube sheet and meets place.How rapidly condenser is judged whether
Leakage, the accurate position for detecting leakage point, is all very important chemistry and steam turbine profession.
Condenser leakage detection device is to utilize vacuum pump by condensation water from the condenser hotwell under vacuum operating status
Extraction, passes through its related chemistry index of on-line chemical analysis instrument measurement, its measured value of comprehensive comparative analysis by the water sample of extraction
To achieve the purpose that detect Steam Condenser Leak point and calculate slip to handle immediately.It is existing since condenser volume is bigger
There is the leakage detection apparatus in technology, sample water lines design function is relatively simple, and leak detection and sampling work amount are big, efficiency of hunting leak and precision
It is not high；On-line checking of the prior art, the fluctuating change of inflow temperature affect to measurement result, and sample water
Conference survey measuring instrumentss are crossed in temperature fluctuation certain loss, so as to the service life of lowering apparatus instrument.
Utility model content
The utility model in view of the above problems, provide it is a kind of it is compact-sized, detection efficiency is high, detection data is accurate, prolongs
The leak detection disk of the condenser hotwell leakage detection apparatus of long instrument and meter service life.
The technical solution of the utility model is：Including inlet pipeline, manual sampling branch and chemical measurement branch；
One end of the inlet pipeline is equipped with water-in flange, and the other end is equipped with backwater valve, the water-in flange and return water
The throttle valve of concatenation is equipped between valve；
The water inlet end of the manual sampling branch and water outlet are connected between the water-in flange and throttle valve, institute
It states manual sampling branch road and is respectively equipped with pressure gauge and sampling valve；
The water inlet of the chemical measurement branch is connected between the water-in flange and throttle valve, and water outlet is connected to institute
It states between throttle valve and backwater valve；The chemical measurement branch road is connected with ion exchange column, suspended body flowmeter and electrical conductivity
Measuring instrument.
Inlet pipeline close to the water-in flange is equipped with sequentially connected flow valve, heating unit and temperature survey
Instrument.
The heating unit includes the tube body that sealing is set on the outside of the inlet pipeline, and the tube body is equipped with and persistently carries
For the inlet and outlet of heating.
The heating unit includes the rounded cover body of heater strip and section, and the heater strip is uniformly arranged in the cover body
Inner wall, the cover body is set on the inlet pipeline.
The inlet pipeline is equipped with insulating layer.
The utility model takes water sample to be measured from condenser, and water sample is flowed into from the bottom of suction box in vacuum pump, through vacuum
Pump supercharging enters leak detection disk.By hunting leak manual sampling branch on disk and chemical measurement branch is detected water sample, compares,
Determine whether there is leakage point.By setting heating unit in manual sampling branch and chemical measurement branch front end, it is ensured that water sample temperature
It is constant, improve instrument and meter detection accuracy.The utility model have it is compact-sized, detection efficiency is high, detection data is accurate
Really, the features such as extending instrument and meter service life.
Description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment one；
Fig. 2 is the rearview of Fig. 1；
Fig. 3 is the right view of Fig. 1；
Fig. 4 is the structure diagram of the utility model embodiment two；
1 is inlet pipeline in figure, and 11 be water-in flange, and 12 be backwater valve, and 13 be throttle valve, and 2 be manual sampling branch,
21 be pressure gauge, and 22 be sampling valve, and 3 be chemical measurement branch, and 31 be ion exchange column, and 32 suspended body flowmeters, 33 be electrical conductivity
Measuring instrument, 4 be flow valve, and 5 be heating unit, and 6 be temperature measuring set.
Specific embodiment
The utility model as shown in Figs 1-4, including inlet pipeline 1, manual sampling branch 2 and chemical measurement branch 3；
One end of the inlet pipeline 1 is equipped with water-in flange 11, and the other end is equipped with backwater valve 12, the water-in flange 11
The throttle valve 13 concatenated is equipped between backwater valve 12；
The water inlet end of the manual sampling branch 2 and water outlet be connected to the water-in flange 11 and throttle valve 13 it
Between, it is respectively equipped with pressure gauge 21 and sampling valve 22 on the manual sampling branch 2；
The water inlet of the chemical measurement branch 3 is connected between the water-in flange 11 and throttle valve 13, and water outlet connects
It is connected between the throttle valve 13 and backwater valve 12；Ion exchange column 31, float stream are connected on the chemical measurement branch 3
Gauge 32 and electrical conductivity measuring instrument 33.
Water-in flange 11 in detection plate is connect by pipeline with sampling rack flowing water Valve, and water sample enters through vacuum pump to be taken
Sample dish；The flow of manual sampling branch 2 and chemical measurement branch between water-in flange 11 and throttle valve 13 are controlled by throttle valve 13
The flow on road 3.
Manual sampling branch 2 separates on the pipeline between water-in flange 11 and throttle valve 13, is set on manual sampling branch 2
There is pressure gauge 21, the hydraulic pressure in branch is monitored；Water sampling mouth after manual sampling is flowed into inlet pipeline 1.
After water sample enters ion exchange column 31, ammonium ion in water sample is eliminated by ion exchange column 31, measurement result is done
It disturbs；Water sample is after ion exchange by entering chemical measurement instrument after suspended body flowmeter 32（Electrical conductivity measuring instrument 33）, by chemistry
Measuring instrument measures the conductive capability of water sample, judges the leakage situation of condenser；The result detected can be measured with manual sampling
Result be compared, verify, realize accurate detection.Leak detection disk is arranged on the spot on zero meter of layer near condenser hotwell.
Inlet pipeline 1 close to the water-in flange 11 is equipped with sequentially connected flow valve 4, heating unit 5 and temperature
Measuring instrument 6.
Heating unit 5 is wrapped on inlet pipeline 1（Between water-in flange 11 and the reflux branch of manual sampling branch 2）,
It is adjusted by the water sample in the pipeline to entrance into trip temperature, realizes stability when water sample enters instrument and meter；According to temperature
Flow valve 4 is adjusted in the numerical value that degree measuring instrument 6 measures, and when measuring temperature higher than set temperature value, increases the flow of water sample；
When measuring temperature less than set temperature value, reduce the flow of water sample.
The heating unit 5 includes the tube body that sealing is set in 1 outside of inlet pipeline, and the tube body, which is equipped with, to be continued
The inlet and outlet of heating is provided.Heating unit 5 realizes the water sample temperature variation in tube body by the way of heating exchange.It is warm
The temperature of gas can be adjusted according to the data variation of temperature measuring set 6.
The heating unit 5 includes the rounded cover body of heater strip and section, and the heater strip is uniformly arranged in the cover
The inner wall of body, the cover body are set on the inlet pipeline 1.Heater strip heats, and the air themperature in cover body rises, from two bands
The rising of water sample temperature in dynamic pipeline.
The inlet pipeline 1 is equipped with insulating layer.Insulating layer is generally wrapped in using heat-preservation cotton on inlet pipeline 1, to pipe
Water sample in road is kept the temperature, and reduces heat dissipation consumption.
Claims (5)
1. the leak detection disk of condenser hotwell leakage detection apparatus, which is characterized in that surveyed including inlet pipeline, manual sampling branch and chemistry
Measure branch；
One end of the inlet pipeline is equipped with water-in flange, and the other end is equipped with backwater valve, the water-in flange and backwater valve
Between be equipped with concatenation throttle valve；
The water inlet end of the manual sampling branch and water outlet are connected between the water-in flange and throttle valve, the people
Pressure gauge and sampling valve are respectively equipped on work sampling slip；
The water inlet of the chemical measurement branch is connected between the water-in flange and throttle valve, and water outlet is connected to the section
It flows between valve and backwater valve；The chemical measurement branch road is connected with ion exchange column, suspended body flowmeter and electrical conductivity and measures
Instrument.
2. the leak detection disk of condenser hotwell leakage detection apparatus according to claim 1, which is characterized in that close to described into water law
Blue inlet pipeline is equipped with sequentially connected flow valve, heating unit and temperature measuring set.
3. the leak detection disk of condenser hotwell leakage detection apparatus according to claim 2, which is characterized in that the heating unit packet
The tube body that sealing is set on the outside of the inlet pipeline is included, the tube body is equipped with the inlet and outlet for persistently providing heating.
4. the leak detection disk of condenser hotwell leakage detection apparatus according to claim 2, which is characterized in that the heating unit packet
The rounded cover body of heater strip and section is included, the heater strip is uniformly arranged the inner wall in the cover body, and the cover body is set in
On the inlet pipeline.
5. the leak detection disk of the condenser hotwell leakage detection apparatus according to claim 1,2,3 or 4, which is characterized in that it is described into
Water lines are equipped with insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355565.7U CN207472512U (en) | 2017-10-19 | 2017-10-19 | The leak detection disk of condenser hotwell leakage detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355565.7U CN207472512U (en) | 2017-10-19 | 2017-10-19 | The leak detection disk of condenser hotwell leakage detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207472512U true CN207472512U (en) | 2018-06-08 |
Family
ID=62264358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721355565.7U Expired - Fee Related CN207472512U (en) | 2017-10-19 | 2017-10-19 | The leak detection disk of condenser hotwell leakage detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207472512U (en) |
-
2017
- 2017-10-19 CN CN201721355565.7U patent/CN207472512U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20181019 |