CN205002975U - Steam generator blowdown test device - Google Patents
Steam generator blowdown test device Download PDFInfo
- Publication number
- CN205002975U CN205002975U CN201520597041.3U CN201520597041U CN205002975U CN 205002975 U CN205002975 U CN 205002975U CN 201520597041 U CN201520597041 U CN 201520597041U CN 205002975 U CN205002975 U CN 205002975U
- Authority
- CN
- China
- Prior art keywords
- water
- outlet
- steam generator
- blowdown
- circulation pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model belongs to PWR nuclear power station key equipment field specifically discloses a steam generator blowdown test device. It includes main circulating pump, mud sediment blender, notes pulp pump, the experimental body of secondary side blowdown, pond and back water pump, main circulating pump intake end inserts testing campaign water, the export pipeline of back water pump connects the intake end at main circulating pump, the intake end at main circulating pump is connected to the experimental body outlet pipe of secondary side blowdown, district, secondary settlement district, return water district are washed including subsiding in the pond. The utility model discloses has offset because temperature difference change or system leak the change of water level in the system that results in, to mud sediment - the water mixture of the preset parameter of injection in the system return circuit, has taken away main circulating pump and mix heat, keep the system return circuit in the temperature maintain regulation numerical value, can be used for studying transmission, deposit and the discharge technique of the inside mud sediment of steam generator to optimize steam generator structural design, verify the design analysis method and calculate software, and confirm waste fitting discharging's pollution discharge effect.
Description
Technical field
The utility model belongs to pressurized-water reactor nuclear power plant key equipment field, is specifically related to a kind of steam generator blowdown test unit.
Background technology
Steam generator is one of key equipment of pressurized-water reactor nuclear power plant, and its serviceability and reliability are directly connected to safe reliability and the availability of whole nuclear power station.At present, threatening maximum to the safe operation of steam generator is heat-transfer pipe.Due to work under bad environment, heat-transfer pipe is easy to degrade even damaged.In the nuclear power station run in the world, the annual steam generator generation heat-transfer pipe damage accident having about half, force nuclear power plant to have to take unplanned shutdown, extensive plugging, downrating even to change the measures such as steam generator, cause huge economic loss.
Statistics shows, the breakage more than 80% of heat-transfer pipe is caused by corrosion.Steam generator secondary surveys the various impurity summarized, as the impurity of the feed water objectionable impurities of bringing into and suspended particles, secondary coolant circuit system and material corrosion product etc., these impurity all enter steam generator and are deposited on gravity settling, boiling deposition, mode such as turbulent flow deposition etc. in the gap of steam generator tube sheet surface, tube surface, back up pad surperficial and heat-transfer pipe and back up pad, cause the body refuse accumulation at the positions such as the surface scale of heat-transfer pipe and tube sheet.Often there is the high concentration region of some chemical compositions in these body refuses, thus causes the corrosion of heat-transfer pipe in piling up.
Carry out steam generator secondary side subsidence settling situation and filth-discharging effect experimental study, by test, steam generator blowdown structure is optimized, and the fluid flowing grasping nearly tube sheet surf zone is significant.
Summary of the invention
The purpose of this utility model is to provide a kind of steam generator blowdown test unit tested for steam generator secondary side subsidence settling situation and filth-discharging effect, it can be used in studying the transmission of the inner body refuse of steam generator, deposition and discharge technology, thus optimize steam generator structural design, checking Design and analysis methods and software for calculation, and confirm the filth-discharging effect of blowdown apparatus.
The technical solution of the utility model is as follows:
A kind of steam generator blowdown test unit, it comprises main circulation pump, is connected to the body refuse mixer of main circulation pump suction side and note pulp pump, and is connected to the secondary side blowdown test body of main circulation pump outlet end, pond and back water pump in turn; Described main circulation pump suction side access test cycle water; The outlet conduit of described back water pump is connected to the suction side of main circulation pump; Described secondary side blowdown test body comprises cylindrical shell and is positioned at the decline cylinder of cylindrical shell, and described cylindrical shell upper end is provided with feed pipe entrance, and top is provided with test body outlet, and cylinder body bottom is provided with blow-off pipe; Described test body outlet is connected to the suction side of main circulation pump; Described pond comprises sedimentation rinsing area, secondary settlement district, backwater zone, and the bottom in each region is provided with freeing port, and the blow-off pipe of described secondary side blowdown test body is inserted in sedimentation rinsing area by pipeline.
In above-mentioned a kind of steam generator blowdown test unit: also comprise the water receptacle surge tank be located between backwater delivery side of pump and the suction side of main circulation pump on pipeline; Described water receptacle surge tank comprises surge tank tank body, and its top is processed with feed-water intake, and bottom is reverse taper, is processed with feedwater outlet bottom reverse taper.
In above-mentioned a kind of steam generator blowdown test unit: also comprise be located at main circulation pump outlet end and secondary side blowdown test body feed pipe entrance between circuit cools device on pipeline; Described circuit cools device comprises heat interchanger main body, and its top is processed with cold side input port and cold side outlet port; Sidepiece is processed with hot side outlet, and bottom is processed with hot side entrance.
In above-mentioned a kind of steam generator blowdown test unit: the pipeline of the hot side outlet connection of described circuit cools device is provided with sampler.
In above-mentioned a kind of steam generator blowdown test unit: be equipped with sampler on the pipeline that the test body outlet of described secondary side blowdown test body connects, on the pipeline that connects of bottom blow-down pipe.
The beneficial effects of the utility model are:
Be provided with water capacity surge tank, for offsetting because difference variation or system are leaked the change of water level in the system caused;
Be provided with body refuse mixer, for injecting the body refuse-aqueous mixtures of given parameters in system circuit;
Be provided with circuit cools device, mix heat for taking away main circulation pump, in keeping system loop, water temperature maintains specified value;
Be provided with pond, this pond is divided into sedimentation rinsing area, secondary settlement district, backwater zone, after the recirculated water that the body refuse content flowed out from blowdown test body is higher flow into sedimentation flushing, because flow velocity declines, most of body refuse can be deposited in this district, and the water after spilling flows into secondary settlement district, body refuse is sedimentation again, the content of further reduction body refuse, the body refuse content flow into after spilling in the water of backwater zone significantly reduces, and substantially becomes clear water.Again can be pumped in closed circuit as feedwater.
Accompanying drawing explanation
Fig. 1 is steam generator blowdown test unit overall schematic;
Fig. 2 is secondary side blowdown test body schematic diagram;
Fig. 3 is pond schematic diagram;
Fig. 4 is water capacity surge tank schematic diagram;
Fig. 5 is circuit cools device schematic diagram;
In figure: 1. body refuse mixer; 2. note pulp pump; 3. main circulation pump; 4. circuit cools device; 5. cooling-water pump; 6. secondary side blowdown test body; 7. pond; 8. back water pump; 9. water capacity surge tank; 10. sampler; 401. cold side input port; 402. cold side outlet port; 403. hot side outlets; 404. heat interchanger main bodys; 405. hot side entrances; 601. test body outlets; 602. feed pipe entrances; 603. cylindrical shell; 604. decline cylinders; 605. blow-off pipe; 701. sedimentation rinsing areas; 702. secondary settlement districts; 703. backwater zone; 704. freeing port; 901. feed-water intake; 902. surge tank tank bodies; 903. feedwater outlet.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, entrance joint test cold conditions recirculated water (by room temperature tap water) of main circulation pump 3, body refuse mixer 1 is connected into the inlet duct of main circulation pump 3 simultaneously, utilizes note pulp pump 2 body refuse to be pumped into circulating water pipeline, with the filth-discharging effect of test evaporator.
Two entrances of the outlet connecting secondary side blowdown test body 6 of main circulation pump 3, the outlet conduit at the top of secondary side blowdown test body 6 is connected to the suction inlet of main circulation pump 3.
The outlet of secondary side blowdown test body 6 lower end connects the pond 7 of steel by pipeline, water pump in pond 7 is got back to water capacity surge tank 9 by back water pump 8, the outlet of water receptacle surge tank 9 is connected to the suction inlet of main circulation pump 3 by pipeline, be namely connected in the return of main circulation pump 3.
In order in keeping system loop, water temperature maintains specified value, link circuit refrigeratory 4 on the export pipeline of main circulation pump 3, by cooling-water pump 5 for circuit cools device 4 provides chilled water.
In order to offset because difference variation or system are leaked the change of water level in the system caused, the export pipeline of back water pump 8 be installed water capacity surge tank 9, and then is connected on the closed circuit pipeline of main circulation pump 3.
At gatherer import and export place, and bottom blow-down pipe place is provided with sampler 10 respectively.Sampler can use turbidimeter, carries out real-time concentration analysis.On the one hand can guiding experiment process, by the variation relation of Concentration-time, body refuse collecting effect can be analyzed on the other hand.
As shown in Figure 2, secondary side blowdown test body 6 comprises cylindrical shell 603, and install decline cylinder 604 in cylindrical shell 603, above-mentioned cylindrical shell 603 upper end is processed with two feed pipe entrances 602, and top is processed with a test body outlet 601, and lower end is provided with blow-off pipe 605.Test cold conditions recirculated water enters from two feed pipe entrances 602 on top, flow through test body decline cylinder 604, after the flow field flow of blowdown test body internal simulation steam generator bottom, major part flows out from the test body outlet 601 of upper end, enter major cycle, all the other fractions flow out from blow-off pipe 605, flow to the pond 7 of lower end through flowmeter and flow control valve.
As shown in Figure 3, pond 7 is divided into sedimentation rinsing area 701, secondary settlement district 702, backwater zone 703, is provided with freeing port 704 in the bottom in each region.The blow-off pipe 605 of secondary side blowdown test body 6 is inserted in sedimentation rinsing area 701 by pipeline.
After the recirculated water that the body refuse content flowed out from secondary blowdown test body 6 is higher flow into sedimentation rinsing area 701, because flow velocity declines, major part body refuse can be deposited in this district, water after spilling flows into secondary settlement district 702, body refuse is sedimentation again, the content of further reduction body refuse, the body refuse content flow into after spilling in the water of backwater zone 703 significantly reduces, and substantially becomes clear water.
As shown in Figure 4, water capacity surge tank 9 comprises surge tank tank body 902, and its top is processed with feed-water intake 901, and bottom is reverse taper, is processed with feedwater outlet 903 bottom reverse taper.Recirculated water after the process of above-mentioned back water pump 8 blowback enters into surge tank tank body 902 from the feed-water intake 901 of above-mentioned water capacity surge tank 9, flows out from the feedwater outlet 903 of bottom.Thus counteract because difference variation or system are leaked the change of water level in the circulation system caused.
As shown in Figure 5, circuit cools device 4 comprises heat interchanger main body 404, and its top is processed with cold side input port 401 and cold side outlet port 402, and the flowing for chilled water passes in and out.Heat interchanger main body 404 sidepiece is processed with hot side outlet 403, and bottom is processed with hot side entrance 405, and the flowing for recirculated water passes in and out.
The recirculated water driven by main circulation pump 3, after flow regulation is distributed, flow into the hot side entrance 18 of circuit cools device, enter heat interchanger main body 404, carry out heat interchange with the chilled water entered by cold side input port 401, flow out from hot side outlet 403 more afterwards, enter secondary side blowdown test body 6.And the chilled water after heat interchange flows out from cold side outlet port 402 again.
By body refuse mixer 1 and note pulp pump 2, the test cold conditions recirculated water (room temperature tap water) being mixed into body refuse is injected in main circulation pump 3, driven by main circulation pump 3, first coordinate electromagnetic flowmeter to carry out flow regulation by electric butterfly valve and distribute the rear inflow hot side entrance 18 of circuit cools device, after flowing out from hot side outlet 403, enter feed pipe entrance 602, flow through decline cylinder 604, after the flow field flow of blowdown test body 6 internal simulation steam generator bottom, most of water is flowed out by top exit pipeline 601, flows back to main circulation pump 3 suction side complete circulation through pipeline; And small part water flow in sedimentation rinsing area, blowdown pond 701 by the blow-off pipe 605 of blowdown test body through flowmeter and flow control valve, sewer in the secondary settlement district 702 in blowdown pond by body refuse particle deposition, then flow to the backwater zone 703 in blowdown pond, rear use back water pump pumps water to test water capacity surge tank 9 and turns back to major circulatory system.
In order to balance main circulation pump heat being added to recirculated water, circulating water temperature being controlled within the specific limits, in circuit system, is provided with a circuit cools device 4, by the temperature regulating the cooling water inflow of refrigeratory to regulate recirculated water.In order to make pilot system stable operation, in test loop, be provided with water capacity surge tank 9, for cushioning the pilot system water capacity change because the factor such as blowdown, temperature variation causes.
Claims (5)
1. a steam generator blowdown test unit, it is characterized in that: it comprises main circulation pump (3), is connected to the body refuse mixer (1) of main circulation pump (3) suction side and note pulp pump (2), and is connected to secondary side blowdown test body (6), pond (7) and the back water pump (8) of main circulation pump (3) outlet end in turn; Described main circulation pump (3) suction side access test cycle water; The outlet conduit of described back water pump 8 is connected to the suction side of main circulation pump (3); Described secondary side blowdown test body (6) comprises cylindrical shell (603) and is positioned at the decline cylinder (604) of cylindrical shell (603), described cylindrical shell (603) upper end is provided with feed pipe entrance (602), top is provided with test body outlet (601), and cylindrical shell (603) bottom is provided with blow-off pipe (605); Described test body outlet (601) is connected to the suction side of main circulation pump (3); Described pond (7) comprises sedimentation rinsing area (701), secondary settlement district (702), backwater zone (703), the bottom in each region is provided with freeing port (704), and the blow-off pipe (605) of described secondary side blowdown test body (6) is inserted in sedimentation rinsing area (701) by pipeline.
2. a kind of steam generator blowdown test unit as claimed in claim 1, is characterized in that: also comprise the water receptacle surge tank (9) between outlet and the suction side of main circulation pump (3) on pipeline being located at back water pump (8); Described water receptacle surge tank (9) comprises surge tank tank body (902), and its top is processed with feed-water intake (901), and bottom is reverse taper, is processed with feedwater outlet (903) bottom reverse taper.
3. a kind of steam generator blowdown test unit as claimed in claim 1, is characterized in that: also comprise be located at main circulation pump (3) outlet end and secondary side blowdown test body (6) feed pipe entrance (602) between circuit cools device (4) on pipeline; Described circuit cools device (4) comprises heat interchanger main body (404), and its top is processed with cold side input port (401) and cold side outlet port (402); Sidepiece is processed with hot side outlet (403), and bottom is processed with hot side entrance (405).
4. a kind of steam generator blowdown test unit as claimed in claim 3, is characterized in that: the pipeline that the hot side outlet (403) of described circuit cools device (4) connects is provided with sampler (10).
5. a kind of steam generator blowdown test unit as claimed in claim 1, is characterized in that: be equipped with sampler (10) on the pipeline that the test body outlet (601) of described secondary side blowdown test body (6) connects, on the pipeline that connects of bottom blow-down pipe (605).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520597041.3U CN205002975U (en) | 2015-08-10 | 2015-08-10 | Steam generator blowdown test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520597041.3U CN205002975U (en) | 2015-08-10 | 2015-08-10 | Steam generator blowdown test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205002975U true CN205002975U (en) | 2016-01-27 |
Family
ID=55159859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520597041.3U Withdrawn - After Issue CN205002975U (en) | 2015-08-10 | 2015-08-10 | Steam generator blowdown test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205002975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404431A (en) * | 2015-08-10 | 2017-02-15 | 核动力运行研究所 | Steam generator blowdown testing device |
-
2015
- 2015-08-10 CN CN201520597041.3U patent/CN205002975U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404431A (en) * | 2015-08-10 | 2017-02-15 | 核动力运行研究所 | Steam generator blowdown testing device |
| CN106404431B (en) * | 2015-08-10 | 2019-04-16 | 核动力运行研究所 | A kind of steam generator blowdown experimental rig |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110160902B (en) | Detachable annular gas-liquid-solid erosive wear combined test device | |
| CN207608421U (en) | A kind of indirect air cooling pH in Circulating Water regulating device | |
| CN204929512U (en) | A supply water -chilling plant for converter | |
| CN210639042U (en) | Detachable loop type gas-liquid-solid erosion-wear combined test device | |
| CN202522504U (en) | Experiment system simulating material corrosion of primary circuit of nuclear power plant | |
| CN205002975U (en) | Steam generator blowdown test device | |
| KR20090065907A (en) | Apparatus for draining of rcs and the method there for | |
| CN106404431B (en) | A kind of steam generator blowdown experimental rig | |
| CN206174035U (en) | Water circulating system of thermal power plant | |
| CN204558040U (en) | In nuclear reactor coolant, particle removes device | |
| CN106120954A (en) | Thermal power plant's water circulation system | |
| Chen et al. | Research on the transportation and flow characteristics of deep-sea ore transportation equipment | |
| CN214747441U (en) | Sewage waste heat recovery device | |
| WO2022252359A1 (en) | Novel automatic depressurizing system and method for nuclear power plant | |
| CN205258216U (en) | Flowing back processing apparatus is returned in acidizing of offshore oil field oil well | |
| CN211345276U (en) | Constant volume sewage discharge system for power station | |
| CN212198553U (en) | Comprehensive recycling system for coke dry quenching wastewater | |
| CN103278038A (en) | Novel plate heat exchanger | |
| CN104405454B (en) | Cooling water circulating system for supercharger laboratory | |
| CN209401323U (en) | Million kilowatt nuclear power station Spent Fuel Pool cooling system | |
| CN208457940U (en) | A kind of multitubular boiler recirculated cooling water water charging system | |
| CN207227051U (en) | A kind of oxygen-eliminating device without a head | |
| CN111517380A (en) | Comprehensive recycling system for coke dry quenching wastewater | |
| CN212778763U (en) | Heat recovery system | |
| CN205349597U (en) | Cooling tower return water power generation facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yong Inventor after: Zhang Ao Inventor after: Wang Wei Inventor after: Liu Yan Inventor after: Wu Jin Inventor after: Zhang Kun Inventor after: Gao Chang Inventor before: Wang Yong Inventor before: Zhang Wei Inventor before: Wang Wei Inventor before: Liu Yan Inventor before: Wu Jin Inventor before: Zhang Kun |
|
| COR | Change of bibliographic data | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160127 Effective date of abandoning: 20190416 |