CN203847368U - Flow rate controller for reactor coolant pump - Google Patents
Flow rate controller for reactor coolant pump Download PDFInfo
- Publication number
- CN203847368U CN203847368U CN201420243697.0U CN201420243697U CN203847368U CN 203847368 U CN203847368 U CN 203847368U CN 201420243697 U CN201420243697 U CN 201420243697U CN 203847368 U CN203847368 U CN 203847368U
- Authority
- CN
- China
- Prior art keywords
- coolant pump
- reactor coolant
- housing
- measuring vessel
- flange
- 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- Withdrawn - After Issue
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Abstract
The utility model relates to a flow rate controller for a reactor coolant pump. The flow rate controller is located on a low-pressure leakage system of the reactor coolant pump and used for monitoring low-pressure leakage flow of a three-level fluid dynamic pressure mechanical seal, is one of most important auxiliary devices for the reactor coolant pump and provides important research and judgment data for analyzing whether the reactor coolant pump is in a normal working state or not. The flow rate controller is a flow measuring device special for the low-pressure leakage system of the reactor coolant pump and designed based on the volumetric flowmeter principle, and the flow measuring device has the advantages of being simple in structure, accurate in measured data and reliable in operation.
Description
Technical field: the utility model relates to reactor coolant pump flow speed controller.
Background technique: reactor coolant pump flow speed controller is one of measuring and controlling equipment important in reactor coolant pump auxiliary system, whether be normally used for monitoring three grades of hydrodynamic mechanical seal working staties of reactor coolant pump, by its feedack, whether can directly judge nuclear power plant reactor coolant pump in safe and reliable running state.At present, domestic not for the like product of reactor coolant pump.
Summary of the invention:
The purpose of this utility model is the reactor coolant pump flow speed controller that discloses that a kind of reliability is high, maintenance cost is low, is convenient to integral disassembly, assembly.The technical solution of the utility model is: a kind of reactor coolant pump flow speed controller, a flange is all respectively installed with main valve body bottom in main valve body left side, left side flange (18) is communicated with inlet tube, inlet tube (11) with hexagon nut (12) is threaded with housing (1), seal ring (13) is installed in housing (1) seal groove, liquid-level switch (15) is vertically mounted on lid (17), between the two, adopt seal ring (16) sealing, the probe (21) of liquid-level switch (15) is positioned at measuring vessel (10), and measuring vessel (10) is positioned at valve chamber (22); Flange in the bottom (14) is with outer pipe (23), outer pipe (23) is communicated with measuring vessel (10), between lid (17) and housing (1), adopt spirotallic gasket (2) to seal and pass through waisting bolt (3) and hexagon nut (4) is fixed, housing (1) is upper with straight pin (5), straight pin (5) is time location for mounting cover (17), relies on spirotallic gasket (6) to seal and pass through hexagon nut (9), sleeve (8) and waisting bolt (7) to be connected between flange in the bottom (14) and housing (1).
The utility model working principle:
Flow speed controller is positioned in reactor coolant pump low-pressure leak system, for monitoring three grades of hydrodynamic mechanical seal low-pressure leak flows.
When low-pressure leak flow is during higher than design load, illustrate that damaging appears in three grades of hydrodynamic mechanical seals, now do not allow reactor coolant pump to continue operation.
The import of flow speed controller and outlet(discharge) flange (14) are welded on low-pressure leak system pipeline, low-pressure leak enters flow speed controller by arrow direction indication in figure, through inlet tube (11), flow into measuring vessel (10), the volume of interior measuring vessel (10) and osculum size are by calculative determination, when flow is less than design load, the osculum that liquid stream can pass through on measuring vessel (10) flows out, and along arrow direction indication in figure, flow out flow speed controller, the liquid level switch liquid level that not will rise; When flow is greater than design load, liquid stream can not all be discharged by osculum, and now the liquid level in measuring vessel (10) can constantly raise, and while arriving switch liquid level, liquid-level switch (15) can send signal, and prompting low-pressure leak flow is excessive.
The beneficial effects of the utility model are:
The utility model is a measuring device of measuring three grades of hydrodynamic mechanical seal low-pressure leak flows of reactor coolant pump that is specifically designed to, and has filled up the blank of domestic this series products.The utility model relies on inlet tube and measuring vessel at flow speed controller inner chamber, to form the liquid chunnel of low-pressure leak, the volume of measuring vessel and osculum flow are through demarcating, when low-pressure leak flow is less than design load, liquid can flow out by the osculum from measuring vessel; When flow is greater than design load, liquid can not all be discharged by osculum, and at this moment the liquid level in measuring vessel will rise, and when increasing to switch liquid level, liquid-level switch will be by probe to control room transmitted signal.Succeeding in developing of flow speed controller, the production domesticization work of Jiang Shi China core main pump strides forward major step, for the safety of nuclear power station provides powerful guarantee, also for the competition of national nuclear power in international market and carry out condition to third party's outlet and prepare.The utility model reactor coolant pump flow speed controller reliability is high, is easy to dismounting, and maintenance cost is low, is conducive to the maintenance of core main pump, applied widely.
Accompanying drawing explanation
Fig. 1 is reactor coolant pump flow speed controller structure sectional view
Fig. 2 is the sectional view of measuring vessel (10)
Embodiment
As shown in Figure 1, a kind of reactor coolant pump flow speed controller, a flange is all respectively installed with main valve body bottom in main valve body left side, left side flange 18 is communicated with inlet tube, with the inlet tube 11 of hexagon nut 12, is threaded with housing 1, and seal ring 13 is installed in housing 1 seal groove, liquid-level switch 15 is vertically mounted on and covers on 17, between the two, adopt seal ring 16 sealings, the probe 21 of liquid-level switch 15 is positioned at measuring vessel 10, and measuring vessel 10 is positioned at valve chamber 22; Flange in the bottom 14 is with outer pipe 23, outer pipe 23 is communicated with measuring vessel 10, between lid 17 and housing 1, adopt spirotallic gasket 2 to seal and pass through waisting bolt 3 and hexagon nut 4 is fixed, on housing 1 with straight pin 5, straight pin 5 is time location for mounting cover 17, relies on spirotallic gasket 6 to seal and pass through hexagon nut 9, sleeve 8 and waisting bolt 7 to be connected between flange in the bottom 14 and housing 1.
As shown in Figure 2, the structure of described measuring vessel 10 is: container side wall is with the osculum 19 through flow calibration, and the inner chamber 24 of container is with volumetric calibration, and rhone 25 is arranged at container bottom.
The utility model, by the demarcation to measuring vessel and osculum, guarantees the accuracy of measurement result, reliable in structure, and operation expense is low.
Claims (2)
1. a reactor coolant pump flow speed controller, it is characterized in that: a flange is all respectively installed with main valve body bottom in main valve body left side, left side flange (18) is communicated with inlet tube, inlet tube (11) with hexagon nut (12) is threaded with housing (1), seal ring (13) is installed in housing (1) seal groove, liquid-level switch (15) is vertically mounted on lid (17), between the two, adopt seal ring (16) sealing, the probe (21) of liquid-level switch (15) is positioned at measuring vessel (10), and measuring vessel (10) is positioned at valve chamber (22); Flange in the bottom (14) is with outer pipe (23), outer pipe (23) is communicated with measuring vessel (10), between lid (17) and housing (1), adopt spirotallic gasket (2) to seal and pass through waisting bolt (3) and hexagon nut (4) is fixed, housing (1) is upper with straight pin (5), straight pin (5) is time location for mounting cover (17), relies on spirotallic gasket (6) to seal and pass through hexagon nut (9), sleeve (8) and waisting bolt (7) to be connected between flange in the bottom (14) and housing (1).
2. a kind of reactor coolant pump flow speed controller according to claim 1, it is characterized in that: the structure of described measuring vessel (10) is: container side wall is with the osculum (19) through flow calibration, the inner chamber of container (24) is with volumetric calibration, and rhone (25) is arranged at container bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243697.0U CN203847368U (en) | 2014-05-13 | 2014-05-13 | Flow rate controller for reactor coolant pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243697.0U CN203847368U (en) | 2014-05-13 | 2014-05-13 | Flow rate controller for reactor coolant pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847368U true CN203847368U (en) | 2014-09-24 |
Family
ID=51560393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243697.0U Withdrawn - After Issue CN203847368U (en) | 2014-05-13 | 2014-05-13 | Flow rate controller for reactor coolant pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005946A (en) * | 2014-05-13 | 2014-08-27 | 哈尔滨电气动力装备有限公司 | Reactor coolant pump flow speed controller |
-
2014
- 2014-05-13 CN CN201420243697.0U patent/CN203847368U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005946A (en) * | 2014-05-13 | 2014-08-27 | 哈尔滨电气动力装备有限公司 | Reactor coolant pump flow speed controller |
| CN104005946B (en) * | 2014-05-13 | 2016-07-06 | 哈尔滨电气动力装备有限公司 | Reactor coolant pump flow speed controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |