CN108695006A - The loading well temperature-controlled cooling system of million kilowatt nuclear power factory Spent Fuel Pool - Google Patents
The loading well temperature-controlled cooling system of million kilowatt nuclear power factory Spent Fuel Pool Download PDFInfo
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- CN108695006A CN108695006A CN201810494082.8A CN201810494082A CN108695006A CN 108695006 A CN108695006 A CN 108695006A CN 201810494082 A CN201810494082 A CN 201810494082A CN 108695006 A CN108695006 A CN 108695006A
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- temperature
- spent fuel
- fuel pool
- loading well
- nuclear power
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/06—Magazines for holding fuel elements or control elements
- G21C19/07—Storage racks; Storage pools
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
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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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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to the technical fields of million kilowatt nuclear power station core, more particularly to a kind of loading well temperature-controlled cooling system of million kilowatt nuclear power factory Spent Fuel Pool, temperature control device includes controlling executive module and the temperature monitoring elements for monitoring loading Well Temperature, and temperature monitoring elements include several temperature sensitive members being connected with control executive module;Cooling device includes being set to the connecting tube group for loading pulsating pump and connection Spent Fuel Pool and loading well in well, pulsating pump is connected with control executive module, after water temperature is increased to the numerical value of setting, control executive module just starts the motor of pulsating pump and high-temperature water is drawn in Spent Fuel Pool to cool down;After the water temperature in loading well is reduced to the numerical value of setting, control executive module just closes the motor of pulsating pump and stops pumping to Spent Fuel Pool, so realize the adjusting for loading water temperature in well so that the temperature loaded in well is maintained at a stable range, achievees the purpose that ensure to load well safety.
Description
Technical field
The invention belongs to the technical field at million kilowatt nuclear power station more particularly to a kind of weary combustions of million kilowatt nuclear power factory
Expect the loading well temperature-controlled cooling system in pond.
Background technology
Spentnuclear fuel refers to by radiation exposure, used nuclear fuel, is generated by the nuclear reactor of nuclear power station.Core is anti-
Include a large amount of radioactive elements in nuclear fuel after answering heap to react, therefore there are a large amount of radioactivity, if do not located properly
Reason, can seriously affect the health of environment and the personnel for contacting them.Therefore via the weary combustion after the reaction of the nuclear reactor of nuclear power station
Material needs to store many decades in Spent Fuel Pool, until its radioactivity is reduced to and can carry out the subsequently post-processing to spentnuclear fuel
When technique.With domestic nuclear power be on the increase and the lasting operation of nuclear power station, most domestic nuclear power station is weary at present
Fuel pit screen work completely holds, and it is impossible to meet the demands of spentnuclear fuel storage inside nuclear power station for existing container, therefore
Spent Fuel Pool must expand Spent Fuel Pool storage capacity by transformation, ensure the normal production in nuclear power station.
When carrying out Spent Fuel Pool dilatation operation, it is necessary first to first the old screen work inside Spent Fuel Pool is removed,
It needs first to transport the spentnuclear fuel inside old screen work to external storage before carrying out old screen work dismounting, but the weary combustion inside old screen work
The radioactivity of material is not reduced to the emittance value that can be transported and carry out needed for the aftertreatment technology of follow-up spentnuclear fuel generally, therefore
Transport and storage to spentnuclear fuel bring great difficulty.
Therefore during emptying spentnuclear fuel, the fuel assembly equipped with spentnuclear fuel need to be temporarily deposited in and is loaded in well,
However due to the spentnuclear fuel in fuel assembly remain unchanged can fission generate heat discharge to load well water in, cause load well in water
Temperature increase, after certain height is raised in water temperature, need to it will be carried out cooling processing with ensure load well safety.
Invention content
The purpose of the present invention is to provide a kind of loading well temperature control cooling systems of million kilowatt nuclear power factory Spent Fuel Pool
System, it is intended to solve in the prior art to loading the technical issues of cooling down after water temperature increases in well.
To achieve the above object, the technical solution adopted by the present invention is:A kind of million kilowatt nuclear power factory Spent Fuel Pool
Loading well temperature-controlled cooling system, including:
Temperature control device comprising control executive module and the temperature monitoring elements for monitoring loading Well Temperature, the temperature
Degree monitoring assembly includes several temperature sensitive members being connected with the control executive module;
Cooling device comprising the pulsating pump and connection Spent Fuel Pool that are set in the loading well and the loading well
Connecting tube group, the pulsating pump is connected with the control executive module.
Preferably, further include instruction device, the instruction device includes red light and green light, the red light and the green light
It is electrically connected with the control executive module.
Preferably, further include mounting bracket, the first end of the mounting bracket is articulated in the side of the Spent Fuel Pool
On wall, the second end of the mounting bracket extends in the Spent Fuel Pool, and the pulsating pump is installed on the mounting bracket
Second end.
Preferably, the mounting bracket is all steel holder.
Preferably, the temperature sensitive member includes thermal resistance and resistance shell, and the thermal resistance is set to outside the resistance
It is electrically connected in shell and with the control executive module, the resistance cage connection is in the mounting bracket.
Preferably, the temperature monitoring elements further include digital indicator, the digital indicator and thermal resistance electricity
Property connection.
Preferably, the temperature sensitive member and the quantity of the digital indicator are two, and two numbers are aobvious
Show that instrument is corresponded with two thermal resistances respectively to be electrically connected.
Preferably, the control device further includes panel change-over switch, and the panel change-over switch is executed with the control
Component electric connection is opened or closed or automatically selects to control the pulsating pump.
Preferably, the connecting tube group includes at least two conduits, and the first end of the conduit goes out with the pulsating pump
The mouth of a river connects, and the second end of each conduit is connected in Spent Fuel Pool, between the Spent Fuel Pool and the loading well
Equipped with for the cold water in the Spent Fuel Pool to be flowed into the sluice gate in the loading well.
Preferably, the conduit includes the first tube body and multiple second tube bodies, and the first tube body connects described in first tube body
It is connected between the water outlet of the pulsating pump and second tube body, remaining each described second tube body finishes up successively to be connected.
Preferably, first tube body is metal hose.
Preferably, the temperature sensitive member is located in the loading well, and each temperature sensitive member is distributed in institute
State the different height for loading well.
Preferably, further include power distribution cabinet, the power distribution cabinet respectively with the control executive module, temperature monitoring elements and
Pulsating pump is electrically connected.
Preferably, the mounting bracket includes hanging part, connector and installation part, and the hanging part is mounted on the loading
The top of well side wall, one end of the connector are connect with the hanging part, the other end of the connector and the installation part
Connection, the pulsating pump are installed on the installation part.
Preferably, the hanging part includes the vertical portion and transverse part for being interconnected to form an inverted "L" shape, the transverse part
It is connected to the top for loading well side wall, the vertical portion is fixed on by fastener on the side wall for loading well.
Preferably, the connector includes head rod disposed in parallel and the second connecting rod, the head rod
Upper end and the upper end of second connecting rod connect with the hanging part, the lower end of the head rod and described second
The lower end of connecting rod is connect with the installation part.
Preferably, the connector further includes multiple cross bars, and each cross bar is all connected to the head rod and institute
It states between the second connecting rod and is equally spaced.
Preferably, the mounting bracket further includes set connected components, and the connected components that cover are by the top of the water suction pump case
It is fixed on the connector.
Preferably, the installation part includes supporting frame and the support rod body that is connected on support frame as described above body, the suction
The lower end of water pump is fixedly mounted on by fastener on support frame as described above body and the support rod body.
Preferably, the mounting bracket further includes the first bracing piece being connected between the connector and the installation part
With the second bracing piece.
Preferably, the shell of the pulsating pump is all steel material.
Beneficial effects of the present invention:The loading well temperature control cooling system of the million kilowatt nuclear power factory Spent Fuel Pool of the present invention
System is set by the way that temperature monitoring elements are arranged in loading well with the temperature of the water in real-time monitoring loading well when water temperature is increased to
After fixed numerical value, control executive module just starts the motor of pulsating pump and high-temperature water is drawn to spentnuclear fuel water after obtaining the signal
To be cooled down in pond;After loading the water temperature in well and being reduced to the numerical value of setting, control executive module obtains after the signal just
It closes the motor of pulsating pump and stops pumping to Spent Fuel Pool, so realize the adjusting for loading water temperature in well so that load well
Interior temperature is maintained at a stable range, achievees the purpose that ensure to load well safety.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the loading well temperature-controlled cooling system of million kilowatt nuclear power factory provided in an embodiment of the present invention Spent Fuel Pool
Loading well structural schematic diagram;
Fig. 2 is the loading well temperature-controlled cooling system of million kilowatt nuclear power factory provided in an embodiment of the present invention Spent Fuel Pool
Mounting bracket structural schematic diagram;
Fig. 3 is the partial enlargement structural representation at A in Fig. 2.
Wherein, each reference numeral in figure:
10-cooling device 11-pulsating pump, 12-conduits
20-mounting bracket 21-hanging part, 22-connectors
23-installation part 24-set connected components 30-load well
31-sluice gate 121-first interface, 122-second interfaces
123-shackle member 211-vertical portion, 212-transverse parts
221-head rod 223-cross bars of the 222-the second connecting rod
231-the 241-the first arc of 232-support rod body of supporting frame socket parts
242-fixing piece the 252-the second bracing pieces of the 251-the first bracing piece
1231-the 2311-the first side of 1232-clamping portions of pothook
2312-the second the 2421-the second arc of 2313-transverse part of side socket part
2422-interconnecting pieces.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment that Fig. 1~3 is described is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;Can be that machinery connects
It connects, can also be electrical connection;It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in Figures 1 to 3, an embodiment of the present invention provides a kind of loading wells of million kilowatt nuclear power factory Spent Fuel Pool
Temperature-controlled cooling system, including:
Temperature control device comprising control executive module and the temperature monitoring elements for monitoring loading 30 water temperature of well, it is described
Temperature monitoring elements include several temperature sensitive members being connected with the control executive module;
Cooling device comprising the pulsating pump 11 and connection Spent Fuel Pool that are set in the loading well 30 and the dress
The connecting tube group 12 of well is carried, the pulsating pump 11 is connected with the control executive module.
Specifically, the loading well temperature-controlled cooling system of the million kilowatt nuclear power factory Spent Fuel Pool of the embodiment of the present invention,
By loading setting temperature monitoring elements in well 30, and the thermal resistance in temperature monitoring elements can load well 30 with examinations
In water temperature, after water temperature is increased to the numerical value of setting, the resistance value of thermal resistance also gradually increases to certain number with water temperature
The electric current of value, the control executive module being electrically connected at this time with thermal resistance changes therewith, and control executive module obtains the letter
Just start the motor of pulsating pump 11 after number and high-temperature water is drawn in Spent Fuel Pool, then the cold water in Spent Fuel Pool is then
It is interior to be cooled down to well 30 is loaded by the natural overflow of sluice gate 31;When the water temperature in loading well 30 is reduced to the numerical value of setting
Afterwards, thermal resistance resistance value is also gradually decrease to certain numerical value with water temperature, the control executive module being electrically connected at this time with thermal resistance
Electric current change therewith, control executive module obtain the signal after just close the motor of pulsating pump 11 and stop pumping to weary
Fuel pit, at this time due to the inflow of not no flow in Spent Fuel Pool, cold water also stops nature overflow to loading in well 30,
It keeps loading the balance in well 30 with water level in Spent Fuel Pool simultaneously, prevents from loading the water in well 30 and pacified by excessive extraction
Full problem so realizes the adjusting for loading water temperature in well 30 so that the temperature loaded in well 30 is maintained at a stable range,
Achieve the purpose that ensure to load 30 safety of well.
Further, in screen work replacement process, due to consideration that mixed between tinning pond and Spent Fuel Pool it is uneven,
It is uneven to load water temperature everywhere in well 30, forced convertion need to be carried out to tinning pond and Spent Fuel Pool using pulsating pump 11, come
The two mean temperature is maintained to be no more than 45 DEG C or 50 DEG C.
In the present embodiment, the loading well temperature-controlled cooling system of million kilowatt nuclear power factory Spent Fuel Pool further includes referring to
Showing device, the instruction device include red light and green light, and the red light and the green light are electrical with the control executive module
Connection.Specifically, the state of the motor operation of pulsating pump 11 is shown by red light and green light, when red, motor
It is in operating status;When green light, motor is in halted state, to which staff can understand, legibly connection loads
The state of lower water temperature in well 30.
In the present embodiment, the temperature monitoring elements further include at least one digital indicator, each digital indicator
It is electrically connected correspondingly with each thermal resistance respectively.Specifically, since digital indicator can in real time, accurately react
Thermal resistance senses the numerical value of the temperature of water, and the secondary normally opened and secondary normally closed output point provided by digital indicator,
When the numerical value of its display is increased to 45 DEG C or 50 DEG C, normally opened output point is opened, to control the motor of pulsating pump 11
It is automatic to start;When the numerical value of its display is reduced to 40 DEG C, normally closed output point is opened, to control the motor of pulsating pump 11
It is automatically closed.
In the present embodiment, the quantity of the temperature sensitive member and the digital indicator is two, two each numbers
Word display instrument corresponds with two thermal resistances be electrically connected respectively.Specifically, uneven due to loading the water temperature in well 30
Therefore weighing apparatus to ensure that temperature sensitive member can predict the water temperature loaded in well 30 in time, two temperature sensitive members is distinguished
Be arranged near screen work, and at two the numerical value of temperature monitoring have at one be higher than 45 DEG C or 50 DEG C when, pulsating pump 11
Motor starts automatically, when monitoring numerical value is below 40 DEG C at two, the motor automatic stop of pulsating pump 11.
In the present embodiment, the control device further includes panel change-over switch, the panel change-over switch and the control
Executive module electric connection is opened or closed or automatically selects to control the pulsating pump 11.Specifically, it is opened by panel conversion
The pattern for closing the motor operating of control pulsating pump 11 loads water in well 30 when staff needs to adjust manually according to actual conditions
Temperature when, the motor of pulsating pump 11 can be manually opened by panel change-over switch or be closed, when needing the electricity of pulsating pump 11
When machine is under automatic running pattern, converted by panel change-over switch.
In the present embodiment, as shown in Fig. 2, the mounting bracket 20 includes hanging part 21, connector 22 and installation part 23, institute
It states hanging part 21 and is mounted on the top for loading 30 side wall of well, one end of the connector 22 is connect with the hanging part 21,
The other end of the connector 22 is connect with the installation part 23, and the pulsating pump 11 is installed on the installation part 23.Specifically
Ground, pulsating pump 11 are set to load in well 30 by mounting bracket 20 and be extracted out to high-temperature water, and mounting bracket 20 stretches into weary combustion
Depth in material pond can be set according to actual needs, be generated so that pulsating pump 11 can be located to load in well 30 always
In the region of high-temperature water, achieve the purpose that in time, effectively to draw high-temperature water in loading well 30, and then effectively adjust loading well
The temperature of water in 30.
In the present embodiment, as shown in Fig. 2, the hanging part 21 includes vertical portion 211 and transverse part 212, the transverse part
212 one end is connect with one end of the vertical portion 211, the top of the other end of the transverse part 212 and the connector 22
Connection, the transverse part 212 are connected to the top for loading 30 side wall of well, and the other end of the vertical portion 211 is straight down
Extend and fit with the side wall for loading well 30, the vertical portion 211 is fixedly connected on the loading well by fastener
On 30 side wall.Specifically, the upper end of mounting bracket 20 is articulated in the upper end for loading 30 side wall of well by hanging part 21, wherein
Transverse part 212 is connected to the upper surface of side wall, and vertical portion 211 fits towards lower with side wall surface that is loading well 30, and by tight
Firmware is fixed together by vertical portion 211 and with the side wall surface for loading well 30 so that mounting bracket 20 can smoothly be consolidated
It is scheduled on the side wall for loading well 30.
In the present embodiment, as shown in Fig. 2, the connector 22 connects including head rod 221 and second disposed in parallel
The upper end of extension bar 222, the upper end of the head rod 221 and second connecting rod 222 is connect with the hanging part 21,
The lower end of the head rod 221 and the lower end of second connecting rod 222 are connect with the installation part 23.Specifically,
Connector 22 forms the support of its length direction by two parallel head rods 221 and the second connecting rod 222, and makes
Head rod 221 and the second connecting rod 222 can be bonded the side wall for loading well 30 as much as possible, due to loading well 30
Side wall can there is a situation where it is uneven, if using a strip plate as connector 22, it may appear that strip plate can not with it is recessed
The side wall of convex injustice is bonded, therefore when pulsating pump 11 works, and can cause strip plate more due to the mechanical shock of pulsating pump 11
It significantly shakes, causes to absorb water unstable, cannot be satisfied requirement, and use two parallel 221 Hes of head rod
The support that second connecting rod 222 forms its length direction can effectively solve this technical problem, realize that pulsating pump 11 is stable
It draws water effect.
In the present embodiment, as shown in Fig. 2, the connector 22 further includes multiple cross bars 223, each cross bar 223 connects
It is connected between the head rod 221 and second connecting rod 222 and is equally spaced.Specifically, by connecting first
Multiple cross bars 223 are set, and spacing is uniformly distributed between each cross bar 223, to reinforce between extension bar 221 and the second connecting rod 222
The stability connected between head rod 221 and the second connecting rod 222 ensures that pulsating pump 11 can firmly work under water
Make, while its is simple in structure, is not only easy to process, and lighter weight, be easily installed.
In the present embodiment, as shown in Fig. 2, the mounting bracket 20 further includes set connected components 24, the set connected components 24 wrap
Including the first arc socket part 241 and fixing piece 242, the fixation will include the second arc socket part 2421 and interconnecting piece 2422,
First arc socket part 241 is oppositely arranged with second arc socket part 2421 and is socketed on 11 shell of the pulsating pump
Top, the interconnecting piece 2422 are connected between cross bar 223 described in second arc socket part 2421 and the lowermost.Specifically
The top on ground, pulsating pump 11 is fixedly mounted on by covering connected components 24 on the cross bar 223 of mounting bracket 20, the lower end of pulsating pump 11
It is fixedly mounted on by fastener on the mounting portion of mounting bracket 20, so that pulsating pump 11 can be firmly mounted to install
On holder 20, and the shell of pulsating pump 11 keeps parallel with connector 22.
In the present embodiment, as shown in Fig. 2, the installation part 23 includes supporting frame 231 and at least one support rod body
232, support frame as described above body 231 includes the first side 2311, the second side 2312 and transverse part 2313, first side 2311
One end of one end and second side 2312 is connected to the lower end and described second of the head rod 221 with being respectively perpendicular
The both ends of the lower end of connecting rod 222, the transverse part 2313 are connected to the other end of first side 2311 and the second side
Between the other end in portion 2312, each support rod body 232 is connected in parallel to first side with the transverse part 2313
Between 2311 and second side 2312, the lower end of the pulsating pump 11 is fixedly mounted on the transverse part 2313 by fastener
In each support rod body 232.Specifically, installation part 23 is set as hollow out holder so that not only may be used the lower end of pulsating pump 11
To be fixed on installation part 23 by fastener, while nor affecting on the water sucking mouth water suction of the lower section of pulsating pump 11, so as to so that
Pulsating pump 11 can in time, effectively extracting high-temperature water.
In the present embodiment, as shown in Fig. 2, the mounting bracket 20 further includes the first bracing piece 251 and the second bracing piece
252, one end of first bracing piece 251 is connected to the lower part of the head rod 221, first bracing piece 251
The other end is connected to the front of first side 2311, and one end of second bracing piece 252 is connected to second connection
The lower part of bar 222, the other end of second bracing piece 252 are connected to the front of second side 2312.Specifically, pass through
The connection function of first bracing piece 251 and the second bracing piece 252 so that head rod 221, the first side 2311 and first add
A right angled triangle, same second connecting rod 222, the second side 2312 and the second bracing piece 252 are formed between strong bar 251
Between also form a congruent right angled triangle, using the characteristic of triangle, monosymmetric right angled triangle can be effective
The stability connected between installation part 23 and connector 22 is reinforced on ground, so that mounting bracket 20 can effectively provide support
Platform works for pulsating pump 11, and resists the mechanical oscillation generated when pulsating pump 11 works, prevents because pulsating pump 11 falls
The safety accident for falling and causing.
In the present embodiment, as shown in figures 2-3, the conduit 12 include the first tube body and multiple second tube bodies, described first
One end of tube body is equipped with first interface 121, and the other end of first tube body is equipped with second interface 122, each second tube body
One end be equipped with the second interface 122, the other end of each second tube body is equipped with third interface, the first interface
121 be bonded to each other with the water outlet of the pulsating pump 11 after be fixedly connected by fastener, be all provided in each second interface 122
There are multiple shackle members 123, offers multiple card interfaces on each third interface, the shackle member 123 is connected in the card
In interface.Specifically, conduit 12 is provided with more, and is connected with each other the high-temperature water of 11 water outlet of pulsating pump between each conduit 12
It is delivered in Spent Fuel Pool, wherein first conduit 12 being connect with pulsating pump 11, first interface 121 and pulsating pump 11
Water outlet is bonded to each other, then is fixed together by fastener, and in the water outlet of first interface 121 and pulsating pump 11
Joint place be both provided with sealing ring so that be tightly connected between first interface 121 and the water outlet of pulsating pump 11, prevent high temperature
Leaked water causes security risk;And connected by second interface 122 and third interface between conduit 12 and conduit 12, second
Interface 122 is equipped with shackle member 123, card interface is accordingly offered on third interface, shackle member 123 is connected in card interface will
The two is connected together, easy for installation and stable connection.
In the present embodiment, as shown in figures 2-3, the shackle member 123 includes pothook 1231 and clamping portion 1232, described
One end of clamping portion 1232 is connect with the periphery of the second interface 122, the other end of the clamping portion 1232 and the grab
Portion 1231 connects, and the pothook 1231 is connected in the card interface.Specifically, pothook 1231 is stretched in clamping portion 1232
Go out, so that pothook 1231 can be connected in card interface.
In the present embodiment, as shown in figure 3, the quantity of the shackle member 123 is two, and two shackle members 123 are right
Claim ground to be distributed in the periphery of the second interface 122, opened up on the third interface there are two card interface, and two clampings
Mouth is symmetrically distributed in the periphery of the third interface.Specifically, by by two shackle members 123 and two card interfaces symmetrically
Clamping so that connect between conduit 12 and conduit 12 and more consolidate, and connect more convenient.
In the present embodiment, the resistance shell is all steel shell.Specifically, due to the spy of environment in Spent Fuel Pool
Very, the material of resistance shell cannot contain halogen, sulfate ion, and need to meet radioactivity use when sealing and want
It asks, therefore resistance shell is 304 Stainless Steel Shells.
In the present embodiment, first tube body is metal hose.Specifically, conduit 12 is connect with 11 water outlet of pulsating pump
One end is set as metal hose so that conduit 12 can be swung in water more flexiblely, and dress is stretched into adjusting mounting bracket 20
When carrying the depth of well 30, the needs to draw water are constantly adapted to, and are adjusted without specially taking out pulsating pump 11 to dismantle, user
Just, and it is safe.
In the present embodiment, the shell of the pulsating pump 11 is all steel material.Specifically, due to Spent Fuel Pool inner ring
Border it is special, the material of resistance shell cannot contain halogen, sulfate ion, and while sealing need to meet radioactivity and make
With requiring, therefore the shell of pulsating pump 11 is 304 Stainless Steel Shells.
In the present embodiment, the mounting bracket 20 is all steel holder.Specifically, due to environment in Spent Fuel Pool
Special, the material of resistance shell cannot contain halogen, sulfate ion, and need to meet radioactivity use when sealing and want
It asks, therefore mounting bracket 20 is 304 stainless steel stents.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (21)
1. a kind of loading well temperature-controlled cooling system of million kilowatt nuclear power factory Spent Fuel Pool, it is characterised in that:Including:
Temperature control device comprising control executive module and the temperature monitoring elements for monitoring loading Well Temperature, the temperature prison
It includes several temperature sensitive members being connected with the control executive module to survey component;
Cooling device comprising the pulsating pump and connection Spent Fuel Pool that are set in the loading well and the company for loading well
Take over group, the pulsating pump are connected with the control executive module.
2. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 1 Spent Fuel Pool, special
Sign is:It further includes instruction device, and the instruction device includes red light and green light, the red light and the green light with it is described
Executive module is controlled to be electrically connected.
3. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 1 Spent Fuel Pool, special
Sign is:It further includes mounting bracket, and the first end of the mounting bracket is articulated on the side wall of the Spent Fuel Pool, described
The second end of mounting bracket extends in the Spent Fuel Pool, and the pulsating pump is installed on the second end of the mounting bracket.
4. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 3 Spent Fuel Pool, special
Sign is:The mounting bracket is all steel holder.
5. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 3 Spent Fuel Pool, special
Sign is:The temperature sensitive member includes thermal resistance and resistance shell, the thermal resistance be set in the resistance shell and with
The control executive module is electrically connected, and the resistance cage connection is in the mounting bracket.
6. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 5 Spent Fuel Pool, special
Sign is:The temperature monitoring elements further include digital indicator, and the digital indicator is electrically connected with the thermal resistance.
7. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 6 Spent Fuel Pool, special
Sign is:The temperature sensitive member and the quantity of the digital indicator are two, two digital indicator difference
It corresponds and is electrically connected with two thermal resistances.
8. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 1 Spent Fuel Pool, special
Sign is:The control device further includes panel change-over switch, and the panel change-over switch and the control executive module are electrical
Connection is opened or closed or automatically selects to control the pulsating pump.
9. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 1 Spent Fuel Pool, special
Sign is:The water outlet of the pulsating pump is connected to spentnuclear fuel by the connecting tube group including at least two conduits, the conduit
In pond, the Spent Fuel Pool and described load are equipped between well for will be described in cold water in the Spent Fuel Pool flows into
Load the sluice gate in well.
10. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 9 Spent Fuel Pool, special
Sign is:The conduit includes the first tube body and multiple second tube bodies, and the first tube body described in first tube body is connected to described
Between the water outlet of pulsating pump and second tube body, remaining each described second tube body, which finishes up to be connected successively, extends to the weary combustion
Expect in pond.
11. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 10 Spent Fuel Pool,
It is characterized in that:First tube body is metal hose.
12. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 1 Spent Fuel Pool, special
Sign is:The temperature sensitive member is located in the loading well, and each temperature sensitive member is distributed in the loading well
Different height.
13. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 1 Spent Fuel Pool, special
Sign is:It further includes power distribution cabinet, and the power distribution cabinet is electric with the control executive module, temperature monitoring elements and pulsating pump respectively
Property connection.
14. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 3 Spent Fuel Pool, special
Sign is:The mounting bracket includes hanging part, connector and installation part, and the hanging part is mounted on the loading well side wall
Top, one end of the connector are connect with the hanging part, and the other end of the connector is connect with the installation part, described
Pulsating pump is installed on the installation part.
15. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 14 Spent Fuel Pool,
It is characterized in that:The hanging part includes the vertical portion and transverse part for being interconnected to form an inverted "L" shape, and the transverse part is connected to
The top for loading well side wall, the vertical portion are fixed on by fastener on the side wall for loading well.
16. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 14 Spent Fuel Pool,
It is characterized in that:The connector includes head rod disposed in parallel and the second connecting rod, the upper end of the head rod
It is connect with the hanging part with the upper end of second connecting rod, the lower end of the head rod and second connecting rod
Lower end connect with the installation part.
17. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 16 Spent Fuel Pool,
It is characterized in that:The connector further includes multiple cross bars, and each cross bar is all connected to the head rod and described second
Between connecting rod and it is equally spaced.
18. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 14 Spent Fuel Pool,
It is characterized in that:The mounting bracket further includes set connected components, and the top of the water suction pump case is fixed on by the set connected components
On the connector.
19. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 14 Spent Fuel Pool,
It is characterized in that:The installation part includes supporting frame and the support rod body that is connected on support frame as described above body, the pulsating pump
Lower end is fixedly mounted on by fastener on support frame as described above body and the support rod body.
20. the loading well temperature-controlled cooling system of million kilowatt nuclear power factory according to claim 14 Spent Fuel Pool,
It is characterized in that:The mounting bracket further includes the first bracing piece and second being connected between the connector and the installation part
Bracing piece.
21. the loading well temperature control according to claim 1~20 any one of them million kilowatt nuclear power factory Spent Fuel Pool is cold
But system, it is characterised in that:The shell of the pulsating pump is all steel material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494082.8A CN108695006B (en) | 2018-05-22 | 2018-05-22 | Loading well temperature control cooling system of spent fuel pool of million kilowatt nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494082.8A CN108695006B (en) | 2018-05-22 | 2018-05-22 | Loading well temperature control cooling system of spent fuel pool of million kilowatt nuclear power plant |
Publications (2)
| Publication Number | Publication Date |
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| CN108695006A true CN108695006A (en) | 2018-10-23 |
| CN108695006B CN108695006B (en) | 2020-06-05 |
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|---|---|---|---|---|
| CN102412000A (en) * | 2011-10-18 | 2012-04-11 | 清华大学 | Vertical shaft storage system for spent fuel of nuclear power station |
| CN203503305U (en) * | 2013-09-09 | 2014-03-26 | 中国核电工程有限公司 | Cooling and treatment system for refueling pool and spent fuel pool of reactor |
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| CN105590659A (en) * | 2015-12-31 | 2016-05-18 | 清华大学 | Residual heat removal ventilation system for dry storage of spent fuel in nuclear power station |
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| CN108695006B (en) | 2020-06-05 |
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