CN201741415U - Emergency water compensation device - Google Patents
Emergency water compensation device Download PDFInfo
- Publication number
- CN201741415U CN201741415U CN2010202819166U CN201020281916U CN201741415U CN 201741415 U CN201741415 U CN 201741415U CN 2010202819166 U CN2010202819166 U CN 2010202819166U CN 201020281916 U CN201020281916 U CN 201020281916U CN 201741415 U CN201741415 U CN 201741415U
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- Prior art keywords
- water
- fire
- emergence compensating
- water device
- moisturizing pipeline
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to an emergency water compensation device of an equipment cooling water system, comprising a water compensation pipeline and a transfer hose, wherein the water compensation pipeline is communicated with the suction end of a centrifugal pump of the equipment cooling water system, and the transfer hose is in dismountable communication with a fire coil attached by a fire hydrant in a nuclear island fire fighting system. The water outlet of the transfer hose is communicated with the water inlet of the water compensation pipeline by a connecting structure, and the water compensation pipeline is provided with an isolating valve. The water inlet of the transfer hose is provided with a quick connector. When a nuclear island demineralization water distribution system can not be used, the transfer hose is communicated with the fire coil attached by the fire hydrant in the nuclear island fire fighting system by the quick connector to form an emergency water compensation pipeline composed of the fire hydrant of the nuclear island fire fighting system, the fire coil attached by the fire hydrant, the transfer hose, the water compensation pipeline and the centrifugal pump. The isolating valve is opened, and therefore water yield in a ripple tank is compensated by fire water to ensure the normal operation of the equipment cooling water system.
Description
Technical field
The utility model relates to the nuclear power technology field, more particularly, relates to a kind of emergence compensating water device.
Background technology
In the nuclear power field, component cooling water system (Component cooling water system, abbreviation RRI system) function mainly contains: first, refrigerating function, be that RRI system each heat exchanger in nuclear island provides chilled water, and its thermal load passed to liquid coolant by essential service water system (abbreviating the SEC system as), in seawater; The second, buffer action, promptly the RRI system is the barrier of each heat exchanger of nuclear island between seawater, it both can avoid radioactive fluid uncontrollably to be discharged in the seawater and contaminated environment can prevent the corrosion of seawater to each heat exchanger of nuclear island again.As shown in Figure 1, be the fundamental diagram of component cooling water system, wherein, 1 is heat exchanger, and 2 is centrifugal pump, and 3 is ripple tank.
For each unit, the RRI system is provided with two independent line (series A and serial B) and a common line, is described one by one below:
Article two, independent line provides low-temperature receiver for reactor safety facility and the requisite refrigeratory of cold shut, these refrigeratorys all need 100% redundancy, therefore independent line is designed to respectively by emergency power pack A row and the power supply of B row, make under accident conditions, every independent line all has 100% the ability that necessary cooling is provided.In addition, two independent line are made up of the ripple tank of the heat exchanger of the centrifugal pump of two 100% capacity, two 50% capacity, a suction side that is connected centrifugal pump and corresponding pipeline and instrument respectively.
The user of common line is the refrigeratory that chilled water needn't be provided under accident conditions, these refrigeratorys can be for the switching that helps valve, provide chilled water by independent line series A or serial B, under accident conditions, then itself and independent line are isolated, stop to supply water to the common line user by electrically operated valve.
The unique moisturizing source of RRI system is nuclear island demineralized water distribution system (Nuclear Island Demineralized Water Distribution System, abbreviate the SED system as), the SED system replenishes demineralized water to the RRI system, compensation ensures that owing to the expansion of water, the water capacity that contraction causes change and possible leakage the water level of ripple tank maintains in the scope of design.But, this designs the SED system as non-anti-" safe shutdown earthquake ", so-called " safe shutdown earthquake ", be meant at geology and the seismic condition of analyzing nuclear power plant region and plant area, and analyze determined, contingent maximum earthquake on the basis of substance characteristics under the local face of land, so, when " safe shutdown earthquake " takes place, structures, system and the parts of non-anti-" safe shutdown earthquake " design its function of can not guaranteeing to fulfil again.As seen, under " safe shutdown earthquake " situation, the SED system is unavailable, and this moment is if the leakage of the normal leakage amount that system estimates appears in the RRI system, the then water level in the ripple tank and the water yield normal operation that can't guarantee the RRI system.
The utility model content
The technical problems to be solved in the utility model is, at in the prior art when nuclear island demineralized water distribution system is unavailable, if the leakage of the normal leakage amount of system's expectation appears in component cooling water system, the water level in the ripple tank and the water yield defective that can't guarantee the normal operation of component cooling water system then provides a kind of emergence compensating water device of component cooling water system.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of emergence compensating water device of establishing, comprise the moisturizing pipeline that is connected with the suction side of centrifugal pump in the component cooling water system, and the fire-fighting coil pipe detachable switching flexible pipe that be communicated with subsidiary with the hose saddle in the nuclear island fire-fighting system; The water delivering orifice of described switching flexible pipe is communicated with by a syndeton with the water inlet of described moisturizing pipeline; Described moisturizing pipeline is provided with isolation valve; The water inlet of described switching flexible pipe is provided with rapid-acting coupling.
In the emergence compensating water device described in the utility model, also be provided with reverse checkvalve on the described moisturizing pipeline.
In the emergence compensating water device described in the utility model, also be provided with restriction orifice on the described moisturizing pipeline.
In the emergence compensating water device described in the utility model, described reverse checkvalve, restriction orifice and isolation valve set gradually along the ducted water (flow) direction of described moisturizing.
In the emergence compensating water device described in the utility model, described syndeton is the structure that removably connects.
In the emergence compensating water device described in the utility model, the described structure that removably connects is that flange connects.
In the emergence compensating water device described in the utility model, described flange connects the employing bolt and nut and connects.
In the emergence compensating water device described in the utility model, described flange connects employing and is threaded.
Implement the emergence compensating water device of component cooling water system of the present utility model, have following beneficial effect: the moisturizing pipeline is connected with the suction side of centrifugal pump in the component cooling water system, when nuclear island demineralized water distribution system is unavailable, if the leakage of the normal leakage amount of system's expectation appears in component cooling water system, can be communicated with by the subsidiary fire-fighting coil pipe of hose saddle that rapid-acting coupling will be transferred in flexible pipe and the nuclear island fire-fighting system, constitute one by the hose saddle of nuclear island fire-fighting system and subsidiary fire-fighting coil pipe thereof, the switching flexible pipe, the moisturizing pipeline, the emergence compensating water pipeline that centrifugal pump constitutes, open isolation valve, thereby adopt fire demand water that the water yield in the ripple tank is compensated, to guarantee the normal operation of component cooling water system.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the fundamental diagram of component cooling water system;
Fig. 2 is the application block diagram of the emergence compensating water device of the utility model component cooling water system;
Fig. 3 is the structured flowchart of emergence compensating water device first embodiment of the utility model component cooling water system;
Fig. 4 is the structured flowchart of emergence compensating water device second embodiment of the utility model component cooling water system;
Fig. 5 is the structural diagrams of application system of the emergence compensating water device of the utility model component cooling water system.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 2, it is the application block diagram of the emergence compensating water device of the utility model component cooling water system, and it has described the application mode of the emergence compensating water device that is provided with at an independent line, so, for a unit, two emergence compensating water devices need be set to be used respectively with two independent line.
Wherein, 1 is heat exchanger, and 2 is centrifugal pump, and 3 is ripple tank, with identical among Fig. 1.
Component cooling water system links to each other with nuclear island demineralized water distribution system, when normal condition, nuclear island demineralized water distribution system is that component cooling water system replenishes demineralized water, when nuclear island demineralized water distribution system is unavailable, if the leakage of the normal leakage amount of system's expectation appears in component cooling water system, then can provide the emergence compensating water demand for component cooling water system by emergence compensating water device 100 of the present utility model.
Nuclear island fire-fighting system (Nuclear Island Fire Protection System, abbreviate the JPI system as) design for anti-" safe shutdown earthquake ", there is standby fire water in the nuclear island fire-fighting system, when nuclear island demineralized water distribution system is unavailable, can in time be the component cooling water system moisturizing by fire water, promptly draw the fire demand water in the nuclear island fire-fighting system, the water yield in the ripple tank is compensated, thus the normal operation of assurance component cooling water system.
Above-mentioned " leakage of the normal leakage amount that system estimates ", promptly system allows this leakage, but must in time replenish the water yield in the ripple tank.
Emergence compensating water device 100 of the present utility model links to each other with component cooling water system, and in that do not use should be anxious during water replanishing device 100, turn-offing by the switch valves (as isolation valve) in the emergence compensating water device 100 should anxious water replanishing device 100; In that use should be anxious during water replanishing device 100, the fire-fighting coil pipe that this emergence compensating water device 100 and the hose saddle in the nuclear island fire-fighting system is subsidiary is communicated with, after the use end fire-fighting coil pipe is disassembled to get final product.
As shown in Figure 3, it is the structured flowchart of emergence compensating water device first embodiment of the utility model component cooling water system, and it has described the structured flowchart of the emergence compensating water device that is provided with at an independent line, for a unit, two emergence compensating water devices can be set to be used respectively with two independent line.In the present embodiment, this emergence compensating water device comprises the moisturizing pipeline 101 that is connected with the suction side of centrifugal pump in the component cooling water system, and the switching flexible pipe 102 that detachably is communicated with hose saddle in the nuclear island fire-fighting system; The water delivering orifice of switching flexible pipe 102 is communicated with by a syndeton 104 with the water inlet of moisturizing pipeline 101; Moisturizing pipeline 101 is provided with isolation valve 103; The water inlet of switching flexible pipe 102 is provided with rapid-acting coupling 107.
Specific implementation process is as follows: a tee pipe fitting is set on the pipeline of the suction side of centrifugal pump in component cooling water system, on this tee pipe fitting, connect moisturizing pipeline 101, thereby the break-make of isolation valve 103 control moisturizing pipelines 101 is set on this moisturizing pipeline 101, the end that this moisturizing pipeline 101 is connected with threeway is defined as the water delivering orifice of moisturizing pipeline 101 herein, the other end of moisturizing pipeline 101 is defined as the water inlet of moisturizing pipeline 101.Do not using should anxious water replanishing device the time, the water delivering orifice of switching flexible pipe 102 is communicated with by syndeton 104 with the water inlet of moisturizing pipeline 101 always, using should anxious water replanishing device the time, the flexible pipe 102 of at first will transferring is communicated with by the subsidiary fire-fighting coil pipe of rapid-acting coupling 107 and the hose saddle in the nuclear island fire-fighting system, and then open isolation valve 103 and hose saddle, fire demand water can pass through hose saddle and subsidiary fire-fighting coil pipe thereof successively, switching flexible pipe 102, moisturizing pipeline 101, centrifugal pump injects ripple tank, the water yield in the ripple tank is compensated, thus the normal operation of assurance component cooling water system.After using, close isolation valve 103 and hose saddle, the fire-fighting coil pipe that hose saddle is subsidiary disassembles from switching flexible pipe 10 and gets final product.
Further, described syndeton 104 is the structure that removably connects, so switching flexible pipe 102 damages when needing to change, and is easy to operate.
As shown in Figure 4, it is the structured flowchart of emergence compensating water device second embodiment of the utility model component cooling water system, and it has also described the structured flowchart of the emergence compensating water device that is provided with at an independent line, for a unit, two emergence compensating water devices can be set to be used respectively with two independent line.The difference of this second embodiment and first embodiment shown in Figure 1 is: on the basis of first embodiment, should also be provided with reverse checkvalve 106 and restriction orifice 105 on the moisturizing pipeline 101 of anxious water replanishing device.
The effect of reverse checkvalve 106: only allow direction of current direction to flow, and stop reversed flow.When using this emergence compensating water device that the water in the ripple tank is compensated, reverse checkvalve 106 is opened under the fluid pressure action of fire water; If fire water is flowed in the other direction, flowing of fire water will be closed and cut off to reverse checkvalve 106 automatically, play the reverse protection effect.
The effect of restriction orifice 105: there is big pressure drop the upstream and downstream of isolation valve 103 in moisturizing pipeline 101, restriction orifice 105 can reduce the impact of fire water to isolation valve 103, and the fire water that low discharge and continuous flow be provided is to compensate the water in the ripple tank better.
In the present embodiment; reverse checkvalve 106, restriction orifice 105 and isolation valve 103 set gradually along the water (flow) direction in the moisturizing pipeline 101; on the basis that above-mentioned basic controlling fire water break-make, the pressure drop that reduces isolation valve 103 two ends fire waters, reverse protection are provided; also play double protection; as when preventing that isolation valve 103 lost efficacy; reverse checkvalve 106 can turn-off the moisturizing pipeline, prevents that fire water from flowing out by the moisturizing pipeline.
In other embodiments, water (flow) direction in the also reversible moisturizing pipeline 101 of reverse checkvalve 106, restriction orifice 105 and isolation valve 103 sets gradually, but under this mode, reverse checkvalve 106 is in running order always, and the uprising performance of the resistance to compression of reverse checkvalve 106 is had relatively high expectations.
Among above-mentioned Fig. 3, the embodiment shown in Figure 4, preferably, syndeton 104 is the structure that removably connects, and again preferably, this structure that removably connects is that flange connects.So-called traditional flange connects, it is a kind of releasable connection, form by a pair of flange, a pad and several bolt and nuts, pad is placed between two flange sealing surfaces, behind the fastening nut, specific pressure on the gasket surface produces distortion after reaching certain numerical value, and fills up uneven place on the sealing surface, and connection is not tightly leaked; Certainly, along with the development of technology, the bolt and nut on traditional flange connects can be replaced by screw connection structure.
So,, preferably adopt the flange of bolt and nut to connect in order to ensure closely fixing between moisturizing pipeline 101 and the switching flexible pipe 102.Certainly, in other embodiments, also can adopt the flange of screw-type to connect.
Certainly, syndeton 104 connects more than being limited to flange, also can be the syndeton of other form, even the fire-fighting coil pipe can be put in or is enclosed within the water inlet of moisturizing pipeline 101, again by a fixed form fastening (as tightening with iron wire) etc.
During the utility model converges, be provided with rapid-acting coupling 107 at the water inlet of switching flexible pipe 102, when the fire-fighting coil pipe that moisturizing pipeline 101 attaches by rapid-acting coupling 107 and hose saddle was communicated with, connection speed was fast, and good leak tightness meets emergent demand.
As shown in Figure 5, be the structural diagrams of application system of the emergence compensating water device of the utility model component cooling water system.Should be application system with system at the emergence compensating water device of an independent line, so, for a unit, can be provided with that two emergence compensating water devices come and two independent line are used respectively.The concrete structure of the emergence compensating water device 100 of cooling water system, annexation and use operation etc. have been documented in the content of Fig. 3, Fig. 4 correspondence, repeat no more herein.In addition, the subsidiary fire-fighting coil pipe of hose saddle is shown in 108.
To sum up, in the emergence compensating water device of component cooling water system of the present utility model, the moisturizing pipeline is connected with the suction side of centrifugal pump in the component cooling water system, the fire-fighting coil pipe that hose saddle in switching flexible pipe and the nuclear island fire-fighting system attaches detachably is communicated with, when nuclear island demineralized water distribution system is unavailable, can be communicated with by the subsidiary fire-fighting coil pipe of hose saddle that rapid-acting coupling will be transferred in flexible pipe and the nuclear island fire-fighting system, constitute one by the hose saddle of nuclear island fire-fighting system and subsidiary fire-fighting coil pipe thereof, the switching flexible pipe, the moisturizing pipeline, the emergence compensating water pipeline that centrifugal pump constitutes, open isolation valve, thereby adopt fire demand water that the water in the ripple tank is compensated, to guarantee the normal operation of component cooling water system.
The above only is embodiment of the present utility model, not in order to restriction the utility model, all any modifications of being done in spirit of the present utility model and principle, is equal to and replaces or improvement etc., all should be included in the protection domain of the present utility model.
Claims (8)
1. an emergence compensating water device is characterized in that, comprises the moisturizing pipeline that is connected with the suction side of centrifugal pump in the component cooling water system, and the fire-fighting coil pipe detachable switching flexible pipe that be communicated with subsidiary with the hose saddle in the nuclear island fire-fighting system;
The water delivering orifice of described switching flexible pipe is communicated with by a syndeton with the water inlet of described moisturizing pipeline;
Described moisturizing pipeline is provided with isolation valve;
The water inlet of described switching flexible pipe is provided with rapid-acting coupling.
2. emergence compensating water device according to claim 1 is characterized in that, also is provided with reverse checkvalve on the described moisturizing pipeline.
3. emergence compensating water device according to claim 2 is characterized in that, also is provided with restriction orifice on the described moisturizing pipeline.
4. emergence compensating water device according to claim 3 is characterized in that, described reverse checkvalve, restriction orifice and isolation valve set gradually along the ducted water (flow) direction of described moisturizing.
5. according to any described emergence compensating water device of claim 1 to 4, it is characterized in that described syndeton is the structure that removably connects.
6. according to any described emergence compensating water device of claim 5, it is characterized in that the described structure that removably connects is that flange connects.
7. emergence compensating water device according to claim 6 is characterized in that, described flange connects the employing bolt and nut and connects.
8. emergence compensating water device according to claim 6 is characterized in that, described flange connects employing and is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202819166U CN201741415U (en) | 2010-07-30 | 2010-07-30 | Emergency water compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202819166U CN201741415U (en) | 2010-07-30 | 2010-07-30 | Emergency water compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201741415U true CN201741415U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202819166U Expired - Lifetime CN201741415U (en) | 2010-07-30 | 2010-07-30 | Emergency water compensation device |
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| Country | Link |
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| CN (1) | CN201741415U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680646A (en) * | 2012-09-12 | 2014-03-26 | 中广核工程有限公司 | Emergency water supplement system for spent fuel pool of nuclear power station |
| CN105469841A (en) * | 2016-01-04 | 2016-04-06 | 上海核工程研究设计院 | Equipment cooling water system of floating nuclear power plant |
| CN109899616A (en) * | 2019-02-12 | 2019-06-18 | 武昌船舶重工集团有限公司 | A kind of logical bank conversion equipment and its application method |
| CN110448844A (en) * | 2019-07-12 | 2019-11-15 | 岭澳核电有限公司 | The synchronous method for replacing peripheral workshop fire-fighting water isolation valve of nuclear power station |
-
2010
- 2010-07-30 CN CN2010202819166U patent/CN201741415U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680646A (en) * | 2012-09-12 | 2014-03-26 | 中广核工程有限公司 | Emergency water supplement system for spent fuel pool of nuclear power station |
| CN105469841A (en) * | 2016-01-04 | 2016-04-06 | 上海核工程研究设计院 | Equipment cooling water system of floating nuclear power plant |
| CN109899616A (en) * | 2019-02-12 | 2019-06-18 | 武昌船舶重工集团有限公司 | A kind of logical bank conversion equipment and its application method |
| CN110448844A (en) * | 2019-07-12 | 2019-11-15 | 岭澳核电有限公司 | The synchronous method for replacing peripheral workshop fire-fighting water isolation valve of nuclear power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
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| CX01 | Expiry of patent term |