CN203658024U - Calibration apparatus of throttle pipe of reactor coolant pump - Google Patents
Calibration apparatus of throttle pipe of reactor coolant pump Download PDFInfo
- Publication number
- CN203658024U CN203658024U CN201320731889.1U CN201320731889U CN203658024U CN 203658024 U CN203658024 U CN 203658024U CN 201320731889 U CN201320731889 U CN 201320731889U CN 203658024 U CN203658024 U CN 203658024U
- Authority
- CN
- China
- Prior art keywords
- choker
- line
- water tank
- plunger pump
- pressure
- 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.)
- Expired - Fee Related
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims description 15
- 230000009466 transformation Effects 0.000 claims description 11
- 230000033228 biological regulation Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000008676 import Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model relates to a calibration apparatus of a throttle pipe of reactor coolant pump, wherein the throttle pipe is manufactured by bending of a capillary pipe according to a calculated theoretical length. A differential pressure gauge (6) is connected in parallel with two ends of a throttle pipe (1); one end of a filter (7) is connected with the throttle pipe (1) and the other end is connected with a high-pressure plunger pump (9); a voltage-stabilizing tank (10) is installed between the filter (7) and the high-pressure plunger pump (9); one end of a voltage regulating bypass (8) is connected between the filter (7) and the high-pressure plunger pump (9) and the other end is connected with a cooling water tank (11); and the cooling water tank (11) and a cooling water loop (12) are connected. A calibration water tank (13) is also arranged inside the cooling water tank (11); and a liquidometer (14) is installed outside the calibration water tank (13). According to the scheme, the measuring precision is high; the high-pressure tightness and security of the calibration testing are ensured; the welding is not needed; and assembling and disassembling can be carried out conveniently.
Description
Technical field: the utility model relates to a kind of reactor coolant pump choker-line caliberating device.
Background technology: reactor coolant pump main shaft seal choker-line is widely used in the main coolant pump of pressurized-water reactor nuclear power plant all over the world, hereinafter to be referred as main pump.
By some grades of main shaft seals and backup system can be by high temperature, high pressure, be with active reactor medium to keep apart with the external world.Knockdown main pump choker-line can be revealed system pressure is reasonably distributed to every one-level mechanical seal by the controllable high-voltage of setting, thereby reduces the working pressure of main pump mechanical seal and for it provides cool stream, ensure reliability and the life-span of main shaft seal.Because choker-line group needs the restriction characteristic that keeps reliable and stable under the various failure states of main pump shaft seal, need to carry out Accurate Calibration to choker-line.Pipe diameter and inner surface quality for the manufacture of choker-line are unstable, thereby choker-line carries out demarcating accurately very difficult.
Summary of the invention: the purpose of this utility model is to provide high-pressure tightness and the security that a kind of measuring accuracy is high, guarantee rating test, and without welding, dismounting is reactor coolant pump choker-line caliberating device easily.The technical solution of the utility model is: a kind of caliberating device of reactor coolant pump choker-line, and caliberating device is by choker-line (1), cutting ferrule nut (2), cutting ferrule (3), transformation of the way ferrule fitting (4), take over (5), differential pressure indicator (6), filtrator (7), pressure regulation bypass (8), high-pressure plunger pump (9), buffer tank (10), cooler water tank (11), chilled(cooling) water return (CWR) (12) flow calibration container (13), liquid level gauge (14) and connecting tube, valve composition, wherein choker-line (1) is bent and forms according to the theoretical length of calculating by capillary tubing, choker-line (1) two ends and cutting ferrule nut (2), cutting ferrule (3), transformation of the way ferrule fitting (4) connects and seals, choker-line (1) end is deep into adapter (5) inside through transformation of the way ferrule fitting (4), differential pressure indicator (6) is in parallel with choker-line (1) two ends, filtrator (7) one end is connected the other end and is connected with high-pressure plunger pump (9) with choker-line (1), buffer tank (10) is arranged between filtrator (7) and high-pressure plunger pump (9), pressure regulation bypass (8) one end is connected between filtrator (7) and high-pressure plunger pump (9), the other end is connected with cooling water tank (11), cooling water tank (11) is connected with chilled(cooling) water return (CWR) (12), cooling water tank (11) inside is also provided with demarcates water tank (13), and liquid level gauge (14) is arranged on demarcates water tank (13) outside.
Technological merit of the present utility model is:
1. use capillary tubing to make choker-line (1), under equal bending radius, can effectively reduce pipe diameter and bending radius ratio, effectively reduce the impact of tube bending on choker-line (1) restriction characteristic, improve ratio and the stated accuracy of linear loss in total losses.
2. choker-line (1) end inner edge is designed with rounding (16), the rounding (16) of end can reduce greatly choker-line (1) and import and export the local losses that changes generation because flow diameter is installed, greatly reduce the error effect of pressure measuring tie-in local losses to choker-line calibration result, improve stated accuracy.
3. choker-line (1) can be deep into the adapter that internal diameter is larger (5) inside by transformation of the way ferrule fitting (4), reduces to be flowing in choker-line (1) and imports and exports the loss of arriving pressure measurement interface section, improves stated accuracy.
4. test loop can provide temperature stabilization test(ing) medium, and rating test is carried out under choker-line (1) running temperature, has reduced because medium temperature viscosity changes the calibrated error causing, and improves stated accuracy.
5. choker-line (1) two ends all adopt and comprise that cutting ferrule nut (2), cutting ferrule (3) and the cutting ferrule of transformation of the way ferrule fitting (4) composition are connected, guarantee high-pressure tightness and the security of rating test, without welding, dismounting facility, and can not produce any damage to choker-line (1).
6. the application of volume flow measuring and test water silver thermometer has guaranteed to demarcate the flow temperature measurement accuracy of medium, has improved stated accuracy.
Accompanying drawing explanation:
Fig. 1 choker-line rating test loop diagram
Embodiment:
The caliberating device of a kind of reactor coolant pump choker-line as shown in Figure 1, caliberating device is by choker-line 1, cutting ferrule nut 2, cutting ferrule 3, transformation of the way ferrule fitting 4, take over 5, differential pressure indicator 6, filtrator 7, pressure regulation bypass 8, high-pressure plunger pump 9, buffer tank 10, cooler water tank 11, chilled(cooling) water return (CWR) 12 flow calibration containers 13, liquid level gauge 14 and connecting tube, valve composition, wherein choker-line 1 is bent and forms according to the theoretical length of calculating by capillary tubing, choker-line 1 two ends and cutting ferrule nut 2, cutting ferrule 3, transformation of the way ferrule fitting 4 connects and seals, choker-line 1 end is deep into and takes over 5 inside through transformation of the way ferrule fitting 4, differential pressure indicator 6 is in parallel with choker-line 1 two ends, filtrator 7 one end are connected the other end and are connected with high-pressure plunger pump 9 with choker-line 1, buffer tank 10 is arranged between filtrator 7 and high-pressure plunger pump 9, pressure regulation bypass 8 one end are connected between filtrator 7 and high-pressure plunger pump 9, the other end is connected with cooling water tank 11, cooling water tank 11 is connected with chilled(cooling) water return (CWR) 12, cooling water tank 11 inside are also provided with demarcates water tank 13, and liquid level gauge 14 is arranged on demarcates water tank 13 outsides.
Claims (1)
1. a caliberating device for reactor coolant pump choker-line, is characterized in that: caliberating device is by choker-line (1), cutting ferrule nut (2), cutting ferrule (3), transformation of the way ferrule fitting (4), take over (5), differential pressure indicator (6), filtrator (7), pressure regulation bypass (8), high-pressure plunger pump (9), buffer tank (10), cooler water tank (11), chilled(cooling) water return (CWR) (12) flow calibration container (13), liquid level gauge (14) and connecting tube, valve composition, wherein choker-line (1) is bent and forms according to the theoretical length of calculating by capillary tubing, choker-line (1) two ends and cutting ferrule nut (2), cutting ferrule (3), transformation of the way ferrule fitting (4) connects and seals, choker-line (1) end is deep into adapter (5) inside through transformation of the way ferrule fitting (4), differential pressure indicator (6) is in parallel with choker-line (1) two ends, filtrator (7) one end is connected the other end and is connected with high-pressure plunger pump (9) with choker-line (1), buffer tank (10) is arranged between filtrator (7) and high-pressure plunger pump (9), pressure regulation bypass (8) one end is connected between filtrator (7) and high-pressure plunger pump (9), the other end is connected with cooling water tank (11), cooling water tank (11) is connected with chilled(cooling) water return (CWR) (12), cooling water tank (11) inside is also provided with demarcates water tank (13), and liquid level gauge (14) is arranged on demarcates water tank (13) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731889.1U CN203658024U (en) | 2013-11-19 | 2013-11-19 | Calibration apparatus of throttle pipe of reactor coolant pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731889.1U CN203658024U (en) | 2013-11-19 | 2013-11-19 | Calibration apparatus of throttle pipe of reactor coolant pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658024U true CN203658024U (en) | 2014-06-18 |
Family
ID=50924401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320731889.1U Expired - Fee Related CN203658024U (en) | 2013-11-19 | 2013-11-19 | Calibration apparatus of throttle pipe of reactor coolant pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203658024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121432A (en) * | 2014-07-04 | 2014-10-29 | 华中科技大学 | Ultrahigh water pressure adjusting method and device |
-
2013
- 2013-11-19 CN CN201320731889.1U patent/CN203658024U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121432A (en) * | 2014-07-04 | 2014-10-29 | 华中科技大学 | Ultrahigh water pressure adjusting method and device |
| CN104121432B (en) * | 2014-07-04 | 2016-04-13 | 华中科技大学 | A kind of ultra high water pressure regulating method and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 |