CN1139937C

CN1139937C - Boiling water type atomic reactor

Info

Publication number: CN1139937C
Application number: CNB991250613A
Authority: CN
Inventors: 若松光夫; 直; 奈良林直; 夫; 松井秀夫
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1998-11-24
Filing date: 1999-11-24
Publication date: 2004-02-25
Anticipated expiration: 2019-11-24
Also published as: TW428176B; JP2000162382A; JP4077091B2; CN1254626A

Abstract

To efficiently absorb non-condensible gas and reduce the concentration of dissolved oxygen by lowering the level of the non-condensible gas such as dissolved oxygen with a water supply system of a boiling water reactor. In a boiling water reactor in which steam generated in a reactor pressure vessel is sent through a main steam line to a steam turbine and the steam supplied for work is condensed in a condenser into water which is sent with a condensate pump through a heater and a deaerator to a feed water system and returned as reactor feed water through the feed water system into the reactor pressure vessel, a low pressure drain tank 213 for introducing part of steam/water heated with a heater through a steam/water inlet piping 1, extracting non-condensible gas such as oxygen contained in the steam/water and sucking in an offgas extractor 216 is provided and the steam/water inlet piping 1 is penetrated through a tank wall into the low pressure drain tank 213. Around the piping 1 positioned in the tank, a plurality of flow holes 4 for discharging steam/water as droplets are provided with proper intervals.

Description

Boiling water type atomic reactor

The present invention relates in the boiling water type atomic reactor low pressure drainage tank and condenser, particularly can extract the boiling water type atomic reactor of non-condensing gas such as oxygen that the atomic reaction core pressure vessel produces, hydrogen efficiently out as the closed circuit part of feed heating system.

In the existing boiling water type atomic reactor, give steam turbine the steam that is produced by the atomic reaction core pressure vessel by main steam pipe arrangement, supplying with steam after its work is condensed after the device condensation, by condenser pump this condensate water is delivered to water system by condensate water well heater, degasifier etc., arrive the atomic reaction core pressure vessel as atomic pile water supply circulation through this water system.

In this water system, be provided with and be used to pay the feed pump of water supply power and be low pressure feed water pump and the high pressure water pump that the boundary is configured in its upper and lower stream side with this feed pump.

These feed-water heaters are setting a plurality of heating tubes by some formations in cylinder, turbine is bled or other steam circulates in this cylinder, and making supplies water flows through in the heating tube, by the heat interchange of the heating tube perisporium heating of will supplying water, the raising thermal efficiency.

Figure 22 is the system diagram of the closed circuit general structure of water supply heating system in this boiling water type atomic reactor of expression.

As shown in figure 22, the heat that the stove heart 202 in atomic reaction core pressure vessel 201 is produced makes by pump 203 round-robin water to become vapor water.This vapor water is become by moisture trap 219 and steam heated oven 220 and is the high steam of mass dryness fraction, the main steam pipe arrangement 204 of process is after turbine 205 work again, become the condensate water that contains non-condensing gas such as oxygen by condenser 206 coolings, by after 207 pressurizations of low pressure condenser pump, arrive air ejector 208 again.After the air that these air ejector 208 parts are drawn out of was handled by exhaust treatment system 209, the gas of the low radiant degree that allowable value is following was discharged from aiutage 210.

Condensate water is by 211 pressurizations of high pressure condenser pump, by delivering to high service well heater 217 by feed pump 221 again behind the some grades of low pressure feed-water heaters 214,215.In this process, high-temperature high pressure water is circulating to the circulating path that is sent in the atomic reaction core pressure vessel from feed pipe 218.

By some grades of feed-water heaters 214,215 warmed-up a part of vapor waters, be directed to low pressure drainage tank 213.In low pressure drainage tank 213, non-condensing gas such as contained oxygen, hydrogen attracted to waste gas extractor displacer 216 in the vapor water, are handled by exhaust treatment system 209.

Figure 23 represents the mobile situation of condensate water of the general structure and the heating steam water of low pressure drainage tank (De レ Application sunset Application ケ) 213 and peripheral machine thereof.Passed through the condensate water of low pressure feed-water heater 214, with the saturation solubility be the upper limit remaining the non-condensing gas of oxygen etc.In equipment, must monitor dissolved oxygen concentration, control it as below the certain value.

Flowed into the condensate water of drainage tank 213 from above-mentioned low pressure feed-water heater 214, run into be located at inflow portion front impingement plate 222 backs to the bottom diffluence, through being provided in the colyliform plate 223 of drainage tank 213 bottoms, be imported into low-pressure drainage pump 213.In addition, on the top of drainage tank 213, connecting the waste gas extractor displacer 216 that is used to attract non-condensing gas.

Figure 24 represents the general structure of above-mentioned condenser 206.This condenser 206 has heat-transfer pipe 232 and sets thereunder plate 233 obliquely, the heat-transfer pipe 232 inner seawater of sending here from cooling water system 231 that import.The outlet steam of turbine 205 is imported into condenser 206 through steam inflow pipe 230, the seawater of sending here from cooling water system 231 passes through in the heat-transfer pipe 232, after carrying out heat interchange inside and outside the nest of tubes, after flowing down along hang plate 233 as condensate water, arrive low pressure condenser pump 207.

At this moment, when condensation flow is fallen on the liquid level 224, because gas is involved in, make the molten non-condensing gas of having deposited in the condensate water, this is disadvantageous.

In the closed circuit of the water supply heating system of the boiling water type atomic reactor of this structure, as shown in figure 22, passed through the condensate water of low pressure feed-water heater 214, with the saturation solubility be the upper limit remaining non-condensing gas such as oxygen.This is molten deposits oxygen and may corrode in pipe arrangement, the stove structure etc., so, must remove and moltenly condensate water be returned water system after depositing oxygen.For this reason, in equipment, must monitor dissolved oxygen concentration, control it as below the certain value.

Flowed into the condensate water of drainage tank 213 from low pressure feed-water heater 214, run into impingement plate 222 backs,, be imported into low-pressure drainage pump 213 through colyliform plate 223 to the bottom diffluence.Connecting waste gas extractor displacer 216 on low pressure drainage tank 213, non-condensing gas is attracted by this waste gas extractor displacer 216.At this moment, because the non-condensing gas that is attracted is extracted in the gas space only from condensate water surface stripping, so some are relatively good greatly for the surface area that joins with condensate water and the gas space.

But, in the above-mentioned structure, be involved in the condensate water by the gas that flows, particularly produces of condensate water by torrent, so, in water supply, contain the more molten oxygen of depositing, may corrode pipe arrangement, stove heart structure etc.

In addition, as shown in figure 24, in condenser 206, the outlet steam of turbine 205 process steam inflow pipe 230 directed toward condenser 206, the seawater of sending here from chilled water feed system 231 passes through in the heat-transfer pipe 232, after carrying out heat interchange inside and outside the nest of tubes, run down into plate 233 as condensate water after, arrive low pressure condenser pump 207.

At this moment, when condensation flow is fallen liquid level 224,, make the molten non-condensing gas of depositing in the condensate water because of being involved in of gas.Particularly when gas is involved in condensate water by torrent, with low pressure drainage tank 213 similarly, make and contain the more molten oxygen etc. of depositing in supplying water, may corrode pipe arrangement, stove heart structure.

As mentioned above, the non-condensing gas in the water supply, the especially molten oxygen of depositing can cause the corrosion of structural member etc., destroys the structure viability.In addition, if contain the non-condensing gas of volume in the water supply, then when the water boiling of the stove heart, the latent heat of unit weight diminishes, and the thermal efficiency reduces.

The present invention makes in view of the above problems, its purpose is to provide a kind of boiling water type atomic reactor, and boiling atomic pile of the present invention is by reducing molten non-condensing gas amounts such as oxygen of depositing in the water system, can absorb non-condensing gas effectively, lower dissolved oxygen concentration.

In addition, the 2nd purpose of the present invention provides boiling water type atomic reactor, and this boiling water type atomic reactor of the present invention is by containing the non-condensing gas of volume in preventing to supply water, when the water boiling of the stove heart, can add the latent heat of heavy unit weight hot, improve the thermal efficiency.

To achieve these goals, the present invention takes following technical scheme:

Boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, at this, the steam that will be used for work by condenser condenses after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

Have the low pressure drainage tank, a part of vapor water that has made by above-mentioned heater heats flows into pipe arrangement by vapor water and flows into this low pressure drainage tank, extracts the non-condensing gas such as oxygen that contain in the vapor water out, is attracted to the waste gas extractor displacer;

Above-mentioned vapor water inflow pipe arrangement is run through above-mentioned low pressure drainage tank side wall surface also flatly introduce in the drainage tank, be positioned on the pipe arrangement side face of drainage tank, be provided with respectively with appropriate intervals and make vapor water several tap holes as the drop ejection.

Described boiling water type atomic reactor is characterized in that, is located at the some tap holes on the pipe arrangement side face, is configured on the Lower Half side face of pipe arrangement.

Described boiling water type atomic reactor is characterized in that, is positioned at each tap hole on the pipe arrangement side face of drainage tank, has the contraction flow region with a part of constriction of its stream.

Described boiling water type atomic reactor is characterized in that, is provided with the cycle nozzle, and this rotation nozzle is communicated with each tap hole on the pipe arrangement side face that is positioned at drainage tank.

Described boiling water type atomic reactor is characterized in that, the openend of pipe arrangement that is positioned at drainage tank is by the spheroidite obturation, on the side face of this spheroidite, is respectively equipped with appropriate intervals and makes the some tap holes of vapor water as the drop ejection.

Boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, at this, will by for be used for work steam by condenser condenses after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

Above-mentioned vapor water is flowed into pipe arrangement to be run through above-mentioned low pressure drainage tank side wall surface and flatly introduces in the drainage tank, dendritic body is installed and is communicated with at the openend of the pipe arrangement that is positioned at drainage tank with about central portion of this dendritic body, at the side face of this body, make the some tap holes of vapor water with the appropriate intervals setting respectively as the drop ejection.

Described boiling water type atomic reactor is characterized in that, at the inner peripheral surface of the pipe arrangement that is positioned at drainage tank, axially is provided with and makes the tortuous barrier plate that flows of condensate water.

Described boiling water type atomic reactor, it is characterized in that, the outside circumference of pipe arrangement respectively level the long L font fin of some direction of principal axis is installed, the cross-directional length difference of this fin from top to the bottom, and the at right angles bending up of its horizontal direction both ends.

Boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, by condenser this by for be used for work the steam condensation after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

Above-mentioned vapor water is flowed into pipe arrangement to be run through above-mentioned low pressure drainage tank side wall surface and flatly introduces in the drainage tank, leading section at the pipe arrangement that is positioned at drainage tank, rotation aproll porous blade rotatably is installed, condensate water in the pipe arrangement is flowed out by open pore, rotation aproll porous blade is paid rotating energy, spray as drop from each tap hole.

Described boiling water type atomic reactor is characterized in that, the pipe arrangement that is positioned at the drainage tank part as pipe, is formed dual pipe structure at its arranged outside outer tube, is provided with on outer tube pipe face and makes the tap hole of vapor water as the drop ejection.

Above-mentioned vapor water is flowed into the side wall surface that pipe arrangement runs through above-mentioned low pressure drainage tank, and, making openend face drainage tank wall ground connects, the casing that surrounds this connecting portion is installed at the drainage tank internal face, and, on each face of this casing, be respectively equipped with and make the some tap holes of vapor water as the drop ejection.

Described boiling water type atomic reactor, it is characterized in that, being installed in casing on the drainage tank internal face as interior side box body, side box body outside install in its outside, form dual case construction, each face of side box body is provided with and makes the some tap holes of vapor water as the drop ejection outside.

Described boiling water type atomic reactor is characterized in that, near the top liquid level in above-mentioned low pressure drainage tank is being provided with the bearing plate that has the some holes that are used to accept drop.

Boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, after this is used for the steam condensation of work by the condenser handle, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

Above-mentioned vapor water is flowed into the bottom wall that pipe arrangement runs through above-mentioned low pressure drainage tank, in drainage tank, vertically erect,, make the some tap holes of vapor water as the drop ejection with the appropriate intervals setting at the side face of this vertical pipe arrangement.

Described boiling water type atomic reactor is characterized in that, in the inside of above-mentioned vertical pipe arrangement, axially is provided with the several layers orifice plate with appropriate intervals, and the position in each hole does not overlap on this orifice plate and the pipe arrangement.

Described boiling water type atomic reactor is characterized in that, at the outer peripheral face of vertical pipe arrangement, axially with appropriate intervals and the plate-shaped fins that some different sizes are installed with horizontality, this fin does not overlap with each hole site.

Described boiling water type atomic reactor is characterized in that, at the outer peripheral face of above-mentioned vertical pipe arrangement, the spiral fashion fin that does not overlap with each hole site is installed.

Above-mentioned condenser has heat-transfer pipe and sets thereunder plate, and heat-transfer pipe is inner to import from the cooling water system for the cold water that comes;

Be detained near the top of liquid level at condensate water or condensate water is detained below liquid level tight, flatly be provided with on the plate face porous plate with some holes, this porous plate is accepted through the condensate water under the above-mentioned plate current after the above-mentioned heat-transfer pipe heat interchange.

Boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, after this steam that will be used for work is by condenser condenses, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

The portion that falls at the condensate water under above-mentioned plate current is provided with bearing container, and downtake is arranged at this bearing container bottom, also is provided with the horizontal porous tray of accepting from the torrent of this downtake.

The portion that falls at the condensate water under above-mentioned plate current, be provided with bearing container, downtake is arranged at the bottom of this bearing container, in this downtake bottom, with this downtake is the loop pipe that the center is setting horizontality, on the pipe face of this loop pipe a plurality of tap holes are arranged, between this loop pipe and the downtake by being connected some communicating pipes.

The boiling water type atomic reactor that atomic pile is put down in writing, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, by condenser the steam condensation after here working after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

Above-mentioned vapor water inflow pipe arrangement is run through above-mentioned low pressure drainage tank side wall surface also flatly introduce in the drainage tank, be positioned at the pipe arrangement side face of drainage tank, make vapor water several tap holes as the drop ejection with the appropriate intervals setting.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, are located at the some tap holes on the pipe arrangement side face, are configured on the Lower Half side face of pipe arrangement.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, is positioned at each tap hole on the pipe arrangement side face of drainage tank, has the contraction flow region with a part of constriction of its stream.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, are provided with the cycle nozzle, and this rotation nozzle is communicated with each tap hole on the pipe arrangement side face that is positioned at drainage tank.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, the openend of pipe arrangement that is positioned at drainage tank is by the spheroidite obturation, on the side face of this spheroidite, is provided with appropriate intervals and makes the some tap holes of vapor water as the drop ejection.

The boiling water type atomic reactor of being put down in writing, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, by condenser the steam condensation after here working after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

Above-mentioned vapor water is flowed into pipe arrangement to be run through above-mentioned low pressure drainage tank side wall surface and flatly introduces in the drainage tank, dendritic body is installed and is communicated with at the openend of the pipe arrangement that is positioned at drainage tank with about central portion of this dendritic body, at the side face of this body, make the some tap holes of vapor water as the drop ejection with the appropriate intervals setting.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, at the inner peripheral surface of the pipe arrangement that is positioned at drainage tank, axially are provided with and make the having many bends or curves mobile barrier plate of condensate water.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, in the outside circumference of pipe arrangement the long L font fin of some direction of principal axis is installed, the cross-directional length difference of this fin from top to the bottom, and the at right angles bending up of its horizontal direction both ends.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, the pipe arrangement that is positioned at the drainage tank part as pipe, is formed dual pipe structure at its arranged outside outer tube, are provided with at the outer tube side face and make the tap hole of vapor water as the drop ejection.

Above-mentioned vapor water is flowed into the side wall surface that pipe arrangement runs through above-mentioned low pressure drainage tank, and, make openend face drainage tank wall ground and connect, the casing that surrounds this connecting portion is installed at the drainage tank internal face, and, on each face of this casing, be provided with and make the some tap holes of vapor water as the drop ejection.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, being installed in casing on the drainage tank internal face as interior side box body, side box body outside install in its outside, form dual case construction, each face of side box body is provided with and makes the some tap holes of vapor water as the drop ejection outside.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that near the top liquid level in above-mentioned low pressure drainage tank is provided with the bearing plate with some holes, and this bearing plate is accepted drop.

The boiling water type atomic reactor of putting down in writing, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, by condenser the steam condensation after here working after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

Above-mentioned vapor water is flowed into the bottom wall that pipe arrangement runs through above-mentioned low pressure drainage tank, in drainage tank, vertically erect,, be provided with some tap holes that vapor water is sprayed as drop with appropriate intervals at the side face of this vertical pipe arrangement.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, in the inside of above-mentioned vertical pipe arrangement, axially are provided with the several layers orifice plate with appropriate intervals, and the position in each hole does not overlap on this orifice plate and the pipe arrangement.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that at the outer peripheral face of vertical pipe arrangement, axially with appropriate intervals and the plate-shaped fins that some different sizes are installed with horizontality, this fin does not overlap with each hole site.

The boiling water type atomic reactor of being put down in writing, atomic pile is characterized in that, at the outer peripheral face of above-mentioned vertical pipe arrangement, the spiral fashion fin that does not overlap with each hole site are installed.

In the boiling water type atomic reactor of being put down in writing, deposit non-condensing gas content such as oxygen, can absorb non-condensing gas effectively, reduce dissolved oxygen concentration by reducing molten in the water system.

The portion that falls at the condensate water under above-mentioned plate current is provided with bearing container, and downtake is arranged at the bottom of this bearing container, also is provided with the horizontal porous tray of accepting from the torrent of this downtake.

The portion that falls at the condensate water under above-mentioned plate current, be provided with bearing container, downtake is arranged at the bottom of this bearing container, in this downtake bottom, with this downtake is the loop pipe that the center is setting horizontality, a plurality of tap holes are arranged on the side face of this loop pipe, between ring colyliform pipe and the downtake by being connected some communicating pipes.

On in the boiling water type atomic reactor put down in writing, contain the non-condensing gas of volume in can preventing to supply water, the unit weight latent heat during the water boiling that can strengthen the stove heart improves the thermal efficiency.

Effect of the present invention:

As mentioned above,,, can effectively absorb non-condensing gas, reduce dissolved oxygen concentration by reducing the contained molten non-condensing gas amount such as oxygen of depositing in the boiling water type atomic reactor water system according to boiling water type atomic reactor of the present invention.In addition, contain the non-condensing gas of volume, can strengthen the latent heat of water when boiling unit weight of the stove heart, improve the thermal efficiency by preventing to supply water.

Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is among the present invention the 1st embodiment, and expression is located at the low pressure drainage tank on the part of water supply heating system closed circuit and the sectional drawing of periphery general structure thereof.

Fig. 2 is in the above-described embodiments, and the key diagram of the conduits structure in the low pressure drainage tank is introduced in expression.

Fig. 3 is among the present invention the 2nd embodiment, and the schematic partial sectional view of the pipe arrangement in the low pressure drainage tank is introduced in expression.

Fig. 4 is among the present invention the 3rd embodiment, and the schematic partial sectional view of the pipe arrangement in the low pressure drainage tank is introduced in expression.

Fig. 5 is among the present invention the 4th embodiment, and the schematic partial sectional view of the pipe arrangement in the low pressure drainage tank is introduced in expression.

Fig. 6 is among the present invention the 5th embodiment, and the schematic partial sectional view of the pipe arrangement in the low pressure drainage tank is introduced in expression.

Fig. 7 is among the present invention the 6th embodiment, and the schematic partial sectional view of the pipe arrangement in the low pressure drainage tank is introduced in expression.

Fig. 8 is among the present invention the 7th embodiment, and the schematic partial sectional view of the pipe arrangement in the low pressure drainage tank is introduced in expression.

Fig. 9 is among the present invention the 8th embodiment, and the schematic partial sectional view of the pipe arrangement in the low pressure drainage tank is introduced in expression.

Figure 10 is among the present invention the 9th embodiment, and the sectional drawing of the part of the pipe arrangement in the low pressure drainage tank is introduced in expression.

Figure 11 is among the present invention the 10th embodiment, the key diagram of the connecting portion of expression low pressure drainage tank and pipe arrangement end.

Figure 12 is among the present invention the 11st embodiment, the key diagram of the connecting portion of expression low pressure drainage tank and pipe arrangement end.

Figure 13 is among the present invention the 12nd embodiment, the key diagram of expression low pressure drainage tank and peripheral machine construction thereof.

Figure 14 is among the present invention the 13rd embodiment, the key diagram of expression low pressure drainage tank and peripheral machine construction thereof.

Figure 15 is among the present invention the 14th embodiment, and expression is inserted in the key diagram of the vertical pipe arrangement local structure in the low pressure drainage tank.

Figure 16 is among the present invention the 15th embodiment, and expression is inserted in the key diagram of the vertical pipe arrangement local structure in the low pressure drainage tank.

Figure 17 is among the present invention the 16th embodiment, and expression is inserted in the key diagram of the vertical pipe arrangement local structure in the low pressure drainage tank.

Figure 18 is among the present invention the 17th embodiment, the sectional drawing of expression condenser and near general structure thereof.

Figure 19 is among the present invention the 18th embodiment, the sectional drawing of expression condenser and near general structure thereof.

Figure 20 is among the present invention the 19th embodiment, the sectional drawing of expression condenser and near general structure thereof.

Figure 21 is among the present invention the 20th embodiment, is illustrated in the stereographic map of the colyliform antipriming pipe that is connecting on the downtake of the receiving vessel bottom in the condenser.

Figure 22 is the system diagram of closed circuit general structure of the water supply heating system of expression boiling water type atomic reactor.

Figure 23 is in above-mentioned water supply heating system, represents the figure of the mobile situation of condensate water of existing low pressure drainage tank and peripheral machine general structure and heating steam water.

Figure 24 is in above-mentioned water supply heating system, roughly represents the key diagram of existing condenser configuration.

Below, with reference to the embodiment of description of drawings boiling water type atomic reactor of the present invention.

Fig. 1 is among the present invention the 1st embodiment, and expression is located at the low pressure drainage tank on the part of water supply heating system closed circuit and the sectional drawing of periphery general structure thereof, with parts identical among Figure 22 annotate with same tag describe.

Unitary construction and person shown in Figure 21 are basic identical, and its explanation is omitted.

Among the 1st embodiment, as shown in Figure 1, pipe arrangement 1 run through low pressure drainage tank 213 wall be horizontally disposed with, this pipe arrangement 1 is used for importing condensate water from low pressure feed-water heater 214 in low pressure drainage tank 213.Be positioned at the peristome of the pipe arrangement 1 of this drainage tank, open and close, on the pipe arrangement side face, be and be provided with several tap holes 4 staggeredly by end plug 2.On end plug 2, also be provided with tap hole 4.

The 1st embodiment according to this structure, the condensate water that contains non-condensing gas such as the oxygen that produces at atomic reaction core pressure vessel 201, hydrogen, flow into low pressure drainage tank 213 from low pressure feed-water heater 214 by pipe arrangement 1, but this condensate water can be from being located at several tap holes 4 on the pipe arrangement 1 as drop 3 ejections and disperse.

If the radius of tap hole 4 is R, axial spacing is P, and the number of Zhou Fangxiang is M, then total number N=P * M, and total number of establishing the tap hole of end plug 2 is H, then total aperture area of these tap holes 4 is

πR ²×(N+H)。

Therefore, flow out owing to become drop 3 from each tap hole 4, so, with prior art like that the even state that flows down compare, can strengthen the area that contact with spatial portion in the low pressure drainage tank 213, non-condensing gas is more from the surperficial stripping of drop.Like this, waste gas extractor displacer 216 can attract non-condensing gas in large quantities.

According to present embodiment, because non-condensing gas is retracted in the gas space in large quantities from the condensate water surface that becomes drop 3, so, can lower contain in the water supply molten and deposit non-condensing gas concentration such as oxygen.

In the foregoing description, be to be described be the staggered situation that some tap holes 4 are set on the pipe arrangement side face, still, the tap hole 4 on the pipe arrangement 1 also can equally spaced dispose at direction of principal axis and Zhou Fangxiang, is adapted to square.Also can only on first half side face, be staggered or square shape sets.

Shown in Fig. 2 (a) and (b), also can be only on the Lower Half side face of pipe arrangement 1, be staggered or square shape sets several tap holes 4.When only on the Lower Half side face of pipe arrangement 1 tap hole 4 being set in this wise, drop 3 does not overlap each other, can strengthen the contact area with spatial portion, and non-condensing gas is more from drop surface stripping.

In the foregoing description, be on the pipe arrangement in inserting low pressure drainage tank 213 horizontally, several tap holes 4 that the aperture equates are set, but, also can be from end plug 2 one sides of pipe arrangement 1, upstream side towards condensate water sets tap hole 4 with enlarging the aperture gradually, sets tap hole 4 with perhaps reducing the aperture on the contrary gradually, so also can obtain and above-mentioned same action effect.

In addition, in the foregoing description, be that circular tap hole 4 is set on pipe arrangement 1, still, this tap hole also can be the shape that the part with circle cuts.In addition, the shape of this tap hole also can be with triangle, four jiaos, star, the circular outstanding to the inside shape of a part.

On pipe arrangement 1, set variform like this tap hole, also can obtain and above-mentioned same action effect.

Fig. 3 is among the present invention the 2nd embodiment, and expression imports the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as aerobic, hydrogen the schematic partial sectional view of the pipe arrangement in the low pressure drainage tank with horizontality.

Among the 2nd embodiment, shown in Fig. 3 (a) and (b), be positioned on the side face of pipe arrangement 1 of low pressure drainage tank 213, be respectively equipped with several tap holes 12 at Zhou Fangxiang and direction of principal axis with appropriate intervals, the ejection oral-lateral of these tap holes 12 is contraction-like.

Also can on the side face of pipe arrangement 1, be respectively equipped with several tap holes 13 at Zhou Fangxiang and direction of principal axis with appropriate intervals shown in Fig. 3 (c), centre, the mountain portion of these tap holes 13 is contraction-like.In addition, also can on the side face of pipe arrangement 1, be respectively equipped with some tap holes 14 at Zhou Fangxiang and direction of principal axis with appropriate intervals shown in Fig. 3 (d), the entrance side of these tap holes 14 is contraction-like.

According to this structure, the condensate water that contains non-condensing gas such as aerobic is earlier by the contraction flow region throttling of tap hole, at this state or the state that after throttling, spread, be ejected in the low pressure drainage tank 213, so, when condensate water flows out from each tap hole, become drop easily.Like this, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in large quantities.

Therefore, according to this embodiment, owing to non-condensing gas is retracted to the gas space in large quantities from the condensate water surface that becomes drop 3, so, can lower the molten concentration of depositing non-condensing gas such as oxygen that contains in the water supply.

Among above-mentioned the 2nd embodiment, be positioned on the side face of pipe arrangement 1 of low pressure drainage tank 213, be provided with the flow export 12,13,14 of band contraction flow region, the flow velocity of condensate water is improved.But, also can barrier plate be set in the export department of each tap hole, replace contraction flow region.

At this moment, can be in the export department of each tap hole, with the cross-shaped hole central part that is configured in of tabular a pair of barrier plate.Perhaps, also can discoid barrier plate be set in the central authorities of export department of each tap hole.

Like this,, contain the condensate water of non-condensing gas such as oxygen, can distribute, to low pressure drainage tank 213 in, spraying after each tap hole becomes drop and dispersing with configuration flow rate corresponding with barrier plate by barrier plate being set at each tap hole.Like this, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in a large number.

Therefore, with similarly aforementioned, because non-condensing gas is retracted in the gas space in large quantities from the condensate water surface that becomes drop 3, so, can lower contain in the water supply molten and deposit non-condensing gas concentration such as oxygen.

In addition, improve the condensate water flow velocity, become the method that drop sprays, also can adopt an end of nozzle is inserted the interior method of each tap hole that is located on the pipe arrangement 1 respectively.

According to this structure, contain the condensate water of non-condensing gas such as aerobic, become drop 3 backs from nozzle and to low pressure drainage tank 213 in, spray and disperse.So, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in a large number.

Fig. 4 is among the present invention the 3rd embodiment, and expression imports the local structure key diagram that low pressure is let out the pipe arrangement in the cabinet to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

In the 3rd embodiment, as shown in Figure 4, on the side face of pipe arrangement 1, be respectively equipped with some tap holes 4 at Zhou Fangxiang and direction of principal axis, simultaneously, corresponding cycle nozzle 17 is set on these each tap holes 4.

According to this structure, the condensate water that contains non-condensing gas such as aerobic, from cycle nozzle 17 towards the diagram cycle of left-handed ground, under centrifugal action, spray, disperse in the low pressure drainage tank as drop 3, so, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in a large number.

Among above-mentioned the 3rd embodiment, be cycle nozzle 17 to be set, but also can on the side face of the pipe arrangement 1 that is positioned at the low pressure drainage tank, with appropriate intervals several diagonal tap holes be set respectively at Zhou Fangxiang and direction of principal axis at each tap hole 4.

Fig. 5 is among the present invention the 4th embodiment, and expression imports the local structure key diagram of the pipe arrangement in the low pressure drainage tank to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

Among the 4th embodiment, as shown in Figure 5, the openend of pipe arrangement 1 that is positioned at the low pressure drainage tank on the side face of this spheroidite 19 and pipe arrangement 1, is respectively equipped with some tap holes 4 at Zhou Fangxiang and direction of principal axis with appropriate intervals by spheroidite 19 obturations.

According to this structure, the condensate water that contains non-condensing gas such as aerobic, from being located at the tap hole 4 on pipe arrangement 1 and the spheroidite 19, spray, disperse in the low pressure drainage tank as drop 3, so the outflow position of this drop is many, with previous embodiment similarly, non-condensing gas is more from drop surface stripping, and waste gas extractor displacer 216 can attract non-condensing gas in a large number.

Among above-mentioned the 4th embodiment, be that openend at pipe arrangement 1 is provided with spheroidite 19, but also can use the openend of the inaccessible pipe arrangement 1 of occlusor of wedge shape, on the side face of this occlusor and pipe arrangement 1, with appropriate intervals several tap holes 4 are set respectively at Zhou Fangxiang and direction of principal axis.

In addition, also can manage,, several tap holes are set with appropriate intervals at the lower face of this flat shape pipe the flat shape that the openend of pipe arrangement 1 is installed integratedly less than its diameter.

Fig. 6 is among the present invention the 5th embodiment, and expression imports the local structure key diagram that low pressure is let out the pipe arrangement in the cabinet to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

Among the 5th embodiment, as shown in Figure 6, be positioned at the rising on the mouth end of pipe arrangement 1 of low pressure drainage tank, dendritic body 22 be installed, and be communicated with, on the side face of this body 22, be provided with several tap holes 4 with appropriate intervals with the central portion of this body 22.

According to this structure, the condensate water that contains non-condensing gas such as aerobic, from being located at the tap hole 4 on the body 22, spray, disperse in the low pressure drainage tank as drop 3, so the outflow position of this drop is many, with previous embodiment similarly, non-condensing gas is more from drop surface stripping, and waste gas extractor displacer 216 can attract non-condensing gas in a large number.

Among above-mentioned the 5th embodiment, be that openend at pipe arrangement 1 is provided with dendritic body 22, but branch's body of コ font also can be installed at the openend of pipe arrangement 1, and be communicated with about central portion of this body, on the side face of this body, several tap holes 4 are set with appropriate intervals.Perhaps install towards upper and lower and be communicated with, on the side face of this body, several tap holes 4 are set with appropriate intervals to the body of branch and with the central portion of this body.Like this, also can obtain and aforementioned same action effect.

Fig. 7 is among the present invention the 6th embodiment, and expression imports the local structure key diagram that low pressure is let out the pipe arrangement in the cabinet to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

Among the 6th embodiment, as shown in Figure 7, on the side face of pipe arrangement 1, be respectively equipped with some tap holes 4 with appropriate intervals at Zhou Fangxiang and direction of principal axis, and, on the inner peripheral surface of pipe arrangement 1, be provided with the barrier plate 26 that condensate water is flowed at direction of principal axis having many bends or curvesly.

According to this structure, the condensate water that contains non-condensing gas such as aerobic, being blocked plate 26 stops and flows having many bends or curvesly, become the state that non-condensing gas separates easily from condensate water,, spray, disperse in the low pressure drainage tank from each tap hole 4 as drop 3 at this state, so, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in a large number.

In the foregoing description, be to set to make the having many bends or curves mobile barrier plate 26 of condensate water, but also can axially insert the spiral fashion guide blade in the pipe arrangement 1, like this, also can obtain and aforementioned same action effect.

Fig. 8 is among the 7th embodiment, and expression imports the local structure key diagram that low pressure is let out the pipe arrangement in the cabinet to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

Among the 7th embodiment, shown in Fig. 8 (a), be positioned on pipe arrangement 1 side face of low pressure drainage tank part, be respectively equipped with tap hole 4 at Zhou Fangxiang and direction of principal axis with appropriate intervals, in addition, on the circumferential lateral surface of pipe arrangement 1, with horizontality the microscler L font fin 28 of some direction of principal axis is installed, these fins 28 its cross-directional length from top to the bottom is step-like shortening, and the horizontal direction both ends of fin 28 are bending squarely up.

In addition, also can be shown in figure (b), with the aforementioned L font fin 29 of similarly installing, about central portion of the L font end of fin 29 is provided with otch 30 on pipe arrangement 1.In addition, also can on pipe arrangement, be provided with the L font fin of several otch with aforementioned installation similarly.

According to this structure, the condensate water that contains non-condensing gas such as aerobic is behind each tap hole 4 spray mountain, and along continuous straight runs flows on each L font fin 28, disperses in the low pressure drainage tank as drop 3.

Particularly when flow when not reaching 50%, 75% the sub-load running of rated flow 100%, in the low discharge running in when starting, because the flow velocity when tap hole 4 comes out is slow, so ejection is slow, can be fit from the drop that adjacent tap hole 4 comes out, surface area is reduced.And in the present embodiment, owing to set

L font fin

28 or 29, even under low flow condition, also can be used as drop 3 to flow down from the fin two ends, so, forming drop easily, surface area increases.In addition, in 100% specified running, because the speed when tap hole 4 comes out is big, so, form drop 3 easily.

Therefore, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in a large number.

In addition, with similarly aforementioned, because non-condensing gas is retracted in the gas space in large quantities from the condensate water surface that becomes drop 3, so, can lower contain in the water supply molten and deposit non-condensing gas concentration such as oxygen.

Among above-mentioned the 7th embodiment, be on the outer peripheral face of pipe arrangement 1, L font fin 28 is set, but also can on the plate face of this L font fin 28, several tap holes be set.In addition, replace this L font fin, also can obtain and aforementioned same action effect with the tabular fin.

In addition, also can be on the outer peripheral face of pipe arrangement 1, the spiral fashion of axially reeling fin.In this structure, a part of drop from each tap hole 4 ejections of pipe arrangement 1 flows down along helical fin, and other drop can obtain and aforementioned same action effect directly from tap hole 4 ejections and disperse.

Fig. 9 is among the 8th embodiment, and expression imports the local structure key diagram that low pressure is let out the pipe arrangement in the cabinet to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

Among the 8th embodiment, shown in Fig. 9 (a) and (b), be positioned on the leading section of low pressure drainage tank 213 pipe arrangement 1 partly, rotation aproll porous blade 34 rotatably is installed, condensate water in the pipe arrangement 1 flows out by open pore, to paying energy of rotation on this rotation aproll porous blade 34.At this moment, rotation aproll porous blade 34 makes the condensate water stream form the X shape, is respectively equipped with some tap holes in its end.

According to this structure, the condensate water that contains non-condensing gas such as aerobic, inflow is rotatably installed in the rotation aproll porous blade 34 of pipe arrangement 1 leading section, become drop ejection from the squit hole of end and disperse in low pressure drainage tank 213 while rotating, so, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas is taken out device 216 can attract non-condensing gas in a large number.

Therefore, according to present embodiment, because non-condensing gas is retracted in the gas space in large quantities from the condensate water surface that becomes drop 3, so, can lower contain in the water supply molten and deposit non-condensing gas concentration such as oxygen.

Figure 10 is among the present invention the 9th embodiment, and expression imports the local structure key diagram that low pressure is let out the pipe arrangement in the cabinet to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

Among the 9th embodiment, shown in Figure 10 (a) and (b), the pipe arrangement 1 that is positioned at low pressure drainage tank 213 parts as pipe, is provided with outer tube 35 in its outside, forms dual pipe structure.On the side face of pipe arrangement 1 and outer tube 35,, be respectively equipped with tap hole 4 and 36 with appropriate intervals at Zhou Fangxiang and direction of principal axis.

Pipe is the tap hole 4 on the pipe arrangement 1 and is located at tap hole 36 on the outer tube 35 in being located at, the aperture can be identical also can be inequality.No matter the tap hole 4 of pipe arrangement 1 is with aperture or different aperture with the tap hole 36 of outer tube, and these holes can be provided with mutually with staggering.

According to this structure, the condensate water that contains non-condensing gas such as aerobic, after tap hole 4 outflows of pipe arrangement 1, temporarily be stored in the outer tube 35, then, become the drop ejection from the tap hole 36 of outer tube 35 and disperse in low pressure drainage tank 213, so, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in a large number.

Figure 11 is among the present invention the 10th embodiment, and expression imports the local structure key diagram that low pressure is let out the pipe arrangement in the cabinet to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

Among the 10th embodiment, as shown in figure 11, the side wall surface that pipe arrangement 1 is run through low pressure drainage tank 213 with horizontality, and, openend is connected on the sidewall with facing the drainage tank internal face, the casing 38 that surrounds this connecting portion is installed on low pressure drainage tank inwall, and some tap holes 4 are set on each face of casing 38.

According to this structure, contain the condensate water of non-condensing gas such as aerobic, flow into casing 38 from the openend of pipe arrangement 1, again from be located at tap hole 4 on these casing 38 each faces as drop 3 ejections, disperse in low pressure drainage tank 213.So, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in a large number.

Among above-mentioned the 10th embodiment, the openend barrier plate in opposite directions with pipe arrangement 1 can be set in casing 38 also.Like this, after the condensate water that flows out from pipe arrangement 1 is run into barrier plate, become the drop ejection, disperse in low pressure drainage tank 213 from the tap hole 4 that is located on casing 38 each face again.

In addition, コ font plate also can be set replace casing 38, on each face of this plate, be provided with if in tap hole.In addition, the open L font plate in top can be set also, on each face of this plate, some tap holes be set.

In addition, the open font of the falling L plate in bottom can be set also, some tap holes 4 are set on each face of this plate.In addition, the hemispherical plate that surrounds the pipe arrangement openend can be set also, some tap holes are set on its hemisphere face.

Such structure also can obtain and aforementioned same action effect.

Figure 12 is among the present invention the 11st embodiment, and expression imports the local structure key diagram that low pressure is let out the pipe arrangement in the cabinet to the condensate water of supplying with from the low pressure feed-water heater that contains non-condensing gas such as oxygen, hydrogen with horizontality.

Among the 11st embodiment, as shown in figure 12, the side wall surface that pipe arrangement 1 is run through low pressure drainage tank 213 with horizontality, and, openend is connected on the sidewall with facing the drainage tank internal face, install to surround the interior side box body 44 of this connecting portion at low pressure drainage tank inwall, and the arranged outside of this casing 44 outside side box body 45, form dual box-shaped and construct.Some tap holes 4 are set on each face of each casing.

According to this structure, the condensate water that contains non-condensing gas such as aerobic, flow into interior side box body 44 from the openend of pipe arrangement 1, outside Liu Shan hole 4 on side box body 44 each face flows out to as drop 3 in being located at this again in the side box body 45, tap hole 4 on side box body 45 each face outside being located at this becomes drop 3 ejections, disperses in low pressure drainage tank 213 again.Therefore, with previous embodiment similarly, non-condensing gas is more from the stripping of drop surface, waste gas extractor displacer 216 can attract non-condensing gas in a large number.

In addition, also can combine the open plate part of the inside plate and the outside overlappingly, replace above-mentioned dual box-shaped structure, on the open plate of these inside plates and the outside, tap hole is set.So also can obtain and aforementioned same action effect.

Among the 12nd embodiment, as shown in figure 13, pipe arrangement 1 is run through the wall of low pressure drainage tank 213 with horizontality, and pipe arrangement 1 is used for from low pressure feed-water heater 214 condensate waters that contain the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel are imported low pressure drainage tank 213.On the side face of the pipe arrangement 1 that is positioned at this drainage tank, be respectively equipped with some tap holes 4 at Zhou Fangxiang and direction of principal axis, in addition,, the bearing plate 48 that has a plurality of holes on the plate face is set at low pressure drainage tank 213 inner bottom parts.Before arriving liquid levels, accepts the drop 3 of each tap hole 4 ejections of pipe arrangement 1 by this bearing plate 48.

According to the present embodiment of this structure, make the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel spray, disperse as drop 3 from several tap holes 4 with condensate water.

Therefore, compare with the mode that before condensate water is evenly flowed down, can add high surface area, non-condensing gas is many from drop surface stripping, so mouth is attracted to non-condensing gas waste gas extractor displacer 216 in large quantities.In addition, the energy that falls that flows to the drop group 3 of liquid level 224 disperses because of colliding with porous plate 48, can reduce the amount of being involved in of gas 225.

Therefore, according to present embodiment, except can non-condensing gas from the condensate water surface that becomes drop 3 be retracted in large quantities in the gas space and, owing to flowing to the condensate water liquid level of supplying with water, the amount of being involved in of gas reduces, so two kinds of measures and usefulness reduce the molten concentration of depositing non-condensing gas such as oxygen that contains in supplying water more.

Among the 13rd embodiment, as shown in figure 14, pipe arrangement is run through the bottom wall of low pressure drainage tank 213 with horizontality, and this pipe arrangement is used for from low pressure feed-water heater 214 condensate waters that contain the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel are imported low pressure drainage tank 213.And, in low pressure drainage tank 213, set the vertical pipe arrangement 49 that vertically erects, on the side face that is positioned at the vertical pipe arrangement 49 above the liquid level, with appropriate intervals some tap holes 4 are set respectively at Zhou Fangxiang and direction of principal axis.

Present embodiment according to this structure, when because of the reason on the equipment, even pipe arrangement can not run through to horizontality the wall of low pressure drainage tank 213 liquid levels top, the non-condensing gas such as oxygen that the atomic reaction core pressure vessel is produced spray, disperse as drop 3 from several tap holes 4 with condensate water.

Therefore, compare with the mode that before condensate water is evenly flowed down, can add high surface area, non-condensing gas is many from drop surface stripping, so, can in large quantities non-condensing gas be attracted to waste gas extractor displacer 216.

Like this, because non-condensing gas is retracted in the gas space in large quantities from the condensate water surface that becomes drop 3, so, can lower contain in the water supply molten and deposit non-condensing gas concentration such as oxygen.

Among above-mentioned the 13rd embodiment, being positioned at the some tap holes that are provided with on the liquid level top side face of vertical pipe arrangement 49 of low pressure drainage tank 213, also can be with the diagonal tap hole of angle [alpha] to upper angled from level.

According to this diagonal tap hole, because condensate water becomes upwards ejection of drop, so diffusion easily.

Among the 14th embodiment, on the side face of the vertical pipe arrangement 49 in low pressure drainage tank 213 above the liquid level 224, with appropriate intervals some tap holes 4 are set respectively at Zhou Fangxiang and direction of principal axis, and, in pipe arrangement inside, axially with appropriate intervals several layers orifice plate 55 is set, this orifice plate 55 does not overlap with the position of each tap hole 4.

According to the present embodiment of this structure, the upper portion in the vertical pipe arrangement 49 is in each space of being separated by several layers orifice plate 55, the influx of condensate water is conditioned, so, make non-condensing gas such as oxygen with condensate water from some tap holes 4, as the flow velocity Be Controlled drop 3 ejections, disperse.

Among above-mentioned the 14th embodiment, each central part that is located at the several layers orifice plate 55 in the vertical pipe arrangement 49 is porose, also can corresponding barrier plate be set by this hole.When making such structure, also can Be Controlled from the flow velocity of the drop 3 of tap hole 4 ejection, effect more significantly can play a role.

Among above-mentioned the 14th embodiment, be in vertical pipe arrangement 49, the several layers orifice plate to be set, but the upper end in also can the vertical pipe arrangement 49 in low pressure drainage tank 213, most advanced and sophisticated triangle taper piece down is installed, gap between triangle taper piece and vertical pipe arrangement 49 inner peripheral surfaces, enlarge continuously from the upper end toward the below, regulate from the ejection pressure of the condensate water of each tap hole 4 outflows with this.

With similarly above-mentioned, also can replace triangle taper piece in the upper end mounting strap step block of vertical pipe arrangement 49, this band step block is step-like from past below, the upper end of vertical pipe arrangement 49 and reduces.Similarly, the barrier plate that orifice plate and piece are combined also can be set.

Among the 15th embodiment, as shown in figure 16, the side face of the vertical pipe arrangement 49 in low pressure drainage tank 213 above the liquid level 224, be respectively equipped with some tap holes 4 at Zhou Fangxiang and direction of principal axis with appropriate intervals, and, at the outer peripheral face of vertical pipe arrangement 49, the discoideus fin 61 of the several layers different-diameter of horizontality axially is set with appropriate intervals, this fin 61 does not overlap with the position of each tap hole 4.

The section of each fin 61 is the L font, and its outer peripheral edges portion vertically erects, and on its rising portions, is provided with several notch parts 60 with appropriate intervals.In addition, the diameter of fin 61 is to reduce from the topmost to the foot step-likely.

Present embodiment according to this structure, the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel with condensate water from several tap holes 4 of vertical pipe arrangement 49 during as drop 3 ejections, this drop 3 is trapped on each fin 61, becomes drop 3 soon once more and flow down and disperse when notch part 60 overflows.Especially when with the running of 50%, 75% sub-load, though because the flow velocity degree when tap hole 4 flows out is slow, spray not freely, from the drop zoarium that adjacent tap hole comes out, surface area reduces,, can be from the breach 60 of fin 61 as under the stream of liquid droplets.

Therefore, compare with the mode that before condensate water is evenly flowed down, can add high surface area, non-condensing gas is many from drop surface stripping, so, can in large quantities non-condensing gas be attracted to waste gas extractor displacer 216.Particularly when low discharge turns round, disperse as drop 3 from notch part 60 through fin 61, so its effect is more remarkable.

In the foregoing description, be that fin 60 is installed on the outer peripheral face of vertical pipe arrangement 49, on the L of this fin font rising portions, be provided with notch part 60.But installing does not have the fin of notch part can obtain same action effect yet.

In the above-described embodiments, also can be between vertical pipe arrangement 49 and discoideus fin 61, be some guide blades are set radially, and on the L font rising portions of fin 61 circumferences, some radial holes are set with appropriate intervals.

According to this structure, condensate water becomes drop when each tap hole 4 of vertical pipe arrangement 49 flows on the fin 61, this drop is trapped in the spatial portion that is surrounded by each guide blade, soon the radial hole from the L font rising portions becomes drop once more and runs down in the low pressure drainage tank, so can obtain and aforementioned same effect.

Among the 16th embodiment, as shown in figure 17, the side face of the vertical pipe arrangement 49 in low pressure drainage tank 213 above the liquid level 224, be respectively equipped with some tap holes 4 at Zhou Fangxiang and direction of principal axis with appropriate intervals, and, outer peripheral face at vertical pipe arrangement 49 is not installed with spiral fashion fin 68 with each hole site with not overlapping.

Present embodiment according to this structure, the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel with condensate water from several tap holes 4 of vertical pipe arrangement 49 during as drop 3 ejections, this drop 3 flows down along spiral fashion fin 68, in its process, fall after becoming drop 3 once more, disperse in low pressure drainage tank 213 by centrifugal force.

Therefore, compare with the mode that before condensate water is evenly flowed down, can add high surface area, non-condensing gas is many from drop surface stripping, so, can in large quantities non-condensing gas be attracted to waste gas extractor displacer 216.Particularly when low discharge turns round, disperse as drop 3 through spiral fashion fin 68, so its effect is more remarkable.

In the foregoing description, be outer peripheral face, spiral fashion fin 68 be not installed with overlapping with each hole site at vertical pipe arrangement 49.But, also can be this vertical pipe arrangement as interior pipe, in its outside outer tube is set with leaving ring part, form vertical dual pipe structure, side face of pipe and outer tube in this, with appropriate intervals some tap holes are set respectively at Zhou Fangxiang and direction of principal axis, like this, also can obtain and aforementioned same action effect.

Figure 18 is among the present invention the 17th embodiment, the sectional drawing of expression condenser and near general structure thereof, and with part identical among Figure 23, notes describe with same tag.

As shown in figure 18, condenser 206 has heat-transfer pipe 232 and the plate 233 that sets thereunder, the heat-transfer pipe 232 inner seawater of sending here from cooling water system 231 that import, figure does not show that the outlet steam of turbine is imported into condenser 206 through the steam inflow pipe, the seawater of sending here from cooling water system 231 passes through in the heat-transfer pipe 232, inside and outside nest of tubes, carry out heat interchange, run down into plate 233 as condensate water after, flow to low pressure condenser pump 207.

Among the 17th embodiment, the condenser 206 of this structure near condensate water is detained liquid level top, flatly is provided with porous plate 101.Be provided with some tap holes 102 with appropriate intervals on the plate face of this porous plate 101.

The 17th embodiment according to this structure, the condensate water that contains the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel, after the heat interchange as condensate water, energy when slave plate 233 falls into liquid level 224 is because of being disperseed with porous plate 101 collisions, then, fall as drop 103 from tap hole 102, like this, can reduce the gas flow of bringing into from liquid level 224.Therefore, can lower the molten non-condensing gas concentration such as oxygen of depositing that contain in the water supply.

Among above-mentioned the 17th embodiment, be to make 233 direct and porous plate 101 collisions of condensate water slave plate, but also can between plate 233 and porous plate 101, barrier plate 104 be set flatly, energy when making the condensate water that contains non-condensing gas fall into liquid level 224 disperses because of 2 collisions of itself and barrier plate 104 and horizontal perforated panel 102, like this, also can obtain the action effect same with the foregoing description.

In addition, among above-mentioned the 17th embodiment, also porous plate can be set, but the lower horizontal of plate 233 set the some barrier plates that are step-like, make condensate water flow to lower floor from the upper strata successively, drop to the condensate water stagnant area from undermost barrier plate as drop, like this, also can obtain and aforementioned same action effect.

In addition, also some holes that flow down can be set respectively on each barrier plate, make drop flow down the hole and fall from these.

In addition, among above-mentioned the 17th embodiment, also can not establish porous plate, but below plate 233, the weir is set flatly, this weir is used to be detained the outer water of condensation that slave plate 233 flows down, and condensate water overflows at leisure from this weir.

Among above-mentioned the 17th embodiment, also can not establish porous plate, but below plate 233, be arranged side by side some peak shape plates 114 with horizontality, condensate water that slave plate 233 flows down and 114 collisions of peak shape plate, like this, the energy the when condensate water that contains non-condensing gas such as aerobic falls into liquid level 224 is also disperseed, and so also can obtain and aforementioned same action effect.

Among above-mentioned the 17th embodiment, also can not establish porous plate, but below plate 233, tray is set, some tap holes are arranged on the bottom surface of this tray, and inside is inserted with the metal brush, behind the condensate water and tray collision that slave plate 233 flows down towards this tray, condensate water falls from tap hole as drop, also can obtain and aforementioned same action effect.

Among above-mentioned the 17th embodiment, also can not establish porous plate, but below plate 233, the porous plate of band teat tap hole flatly is set, energy when the condensate water that contains non-condensing gas such as aerobic falls into liquid level 224 disperses because of its porous plate collision with band teat tap hole, drop to condensate water delay portion from the teat tap hole then, so also can obtain and aforementioned same action effect.

Among the 18th embodiment, as shown in figure 19, below the condensate water delay liquid level in condenser 206 is tight, porous plate 128 is set flatly.Be provided with some tap holes 102 with appropriate intervals on the plate face of this porous plate 128.

The 18th embodiment according to this structure, the condensate water that contains the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel, by after the heat interchange as condensate water, energy when slave plate 233 falls into liquid level 224 can reduce the gas flow of bringing into from liquid level 224 because of 128 collisions of itself and porous plate disperse.Therefore, can lower the molten non-condensing gas concentration such as oxygen of depositing that contain in the water supply.

Among above-mentioned the 18th embodiment, can near condensate water is detained liquid level top, porous plate 101 be set flatly in addition, like this, the condensate water that contains non-condensing gas such as aerobic, energy when falling into liquid level 224 disperses because of horizontal perforated panel 128 collisions of near porous plate itself and the liquid level top and the tight below of liquid level, compare with previous embodiment, have more significant action effect.

Among above-mentioned the 18th embodiment, be that the condensate water delay liquid level in condenser 206 tightly exerts oneself flatly to be provided with porous plate 128, still, also can near condensate water be detained liquid level, some unsteady ball floats 188 be set replace this porous plate 128.

In such structure, contain the condensate water of non-condensing gas such as oxygen, the energy when falling into liquid level can lower the gas flow of bringing into from liquid level because of itself and some ball floats 188 collisions that float on the liquid level are disperseed.

In addition, the ball float that floats on the liquid level 188 also can be set and sink to subsurface big density ball float 189, with them as the torrent fender.In addition, these ball floats also can couple together with chain shape thing.

Among the 19th embodiment, as shown in figure 20, the condensate water portion of falling in condenser 206 is provided with bearing container 139, and there is downtake 141 its underpart, be provided with the porous tray 140 of level below this downtake 141, this porous tray 140 is accepted the torrent that comes out from downtake 141.

The 19th embodiment according to this structure, the condensate water that contains the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel, when falling into liquid level 224, accept by near the bearing container 139 that is located at the liquid level, from torrent and 140 collisions of porous tray that the downtake 141 of its underpart comes out, therefore, the energy when it falls into is disperseed, like this, can reduce the gas flow of bringing into from liquid level.Therefore, can lower the molten non-condensing gas concentration such as oxygen of depositing that contain in the water supply.

In the foregoing description, on the porous tray that is located at below the downtake, be provided with hemispherical, make the collision of torrent and its sphere, so also can obtain and aforementioned same action effect.

Figure 21 is among the present invention the 20th embodiment, the stereographic map of the ring-type antipriming pipe that the bottom downtake of the bearing container that expression and condenser are interior is being connected.

Among the 20th embodiment, as shown in figure 21, downtake 141 figure interior with being located at condenser do not show that bearing container is communicated with, bottom at this downtake 141, to set with this downtake be the loop pipe 151 that a plurality of tap holes are arranged on center, the side face with horizontal, and, between this loop pipe 151 and downtake 141 with being connected some communicating pipes 150.

In this structure, the condensate water that contains the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel, when falling into liquid level, from be located near the liquid level downtake 141 by Zhou Fangxiang communicating pipes 150 flow into loop pipe 151 after, spray as drop from tap hole, its energy is disperseed, so, with similarly aforementioned, can reduce the gas flow of bringing into from liquid level.

In the foregoing description, also can on the bottom of bearing container downtake 141, the porous plate with slot-shaped tap hole be installed flatly, from this slit flow portal flow on the porous plate after, be distributed to liquid level as drop, like this, also can obtain and aforementioned same action effect.

In addition, in the foregoing description, also can discoideus base plate be installed in the bottom of the bottom of bearing container downtake 141, this discoideus base plate has the guide blade of streamline shape by supporting.

In such structure, the condensate water that contains the non-condensing gas such as oxygen that produce at the atomic reaction core pressure vessel, when falling into liquid level, flow into the base plate that has guide blade near the downtake that is located at the liquid level, the centrifugal force that is guided blade when flowing to liquid level forms stream of liquid droplets, and its energy is disperseed, so, with similarly aforementioned, can reduce the gas flow of bringing into from liquid level.

Claims

1. boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, at this, the steam that will be used for work by condenser condenses after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

2. boiling water type atomic reactor as claimed in claim 1 is characterized in that, is located at the some tap holes on the pipe arrangement side face, is configured on the Lower Half side face of pipe arrangement.

3. boiling water type atomic reactor as claimed in claim 1 is characterized in that, is positioned at each tap hole on the pipe arrangement side face of drainage tank, has the contraction flow region with a part of constriction of its stream.

4. boiling water type atomic reactor as claimed in claim 1 is characterized in that, is provided with the cycle nozzle, and this rotation nozzle is communicated with each tap hole on the pipe arrangement side face that is positioned at drainage tank.

5. boiling water type atomic reactor as claimed in claim 1 is characterized in that, the openend of pipe arrangement that is positioned at drainage tank is by the spheroidite obturation, on the side face of this spheroidite, is respectively equipped with appropriate intervals and makes the some tap holes of vapor water as the drop ejection.

6. boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, at this, will by for be used for work steam by condenser condenses after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

7. boiling water type atomic reactor as claimed in claim 1 is characterized in that, at the inner peripheral surface of the pipe arrangement that is positioned at drainage tank, axially is provided with and makes the tortuous barrier plate that flows of condensate water.

8. boiling water type atomic reactor as claimed in claim 1, it is characterized in that, the outside circumference of pipe arrangement respectively level the long L font fin of some direction of principal axis is installed, the cross-directional length difference of this fin from top to the bottom, and the at right angles bending up of its horizontal direction both ends.

9. boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, after this is used for the steam condensation of work by the condenser handle, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

10. boiling water type atomic reactor as claimed in claim 1, it is characterized in that, the pipe arrangement that is positioned at the drainage tank part as pipe, is formed dual pipe structure at its arranged outside outer tube, on outer tube pipe face, be provided with and make the tap hole of vapor water as the drop ejection.

11. boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, after this is used for the steam condensation of work by the condenser handle, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

12. boiling water type atomic reactor as claimed in claim 11, it is characterized in that, being installed in casing on the drainage tank internal face as interior side box body, side box body outside install in its outside, form dual case construction, each face of side box body is provided with and makes the some tap holes of vapor water as the drop ejection outside.

13., it is characterized in that near the top liquid level in above-mentioned low pressure drainage tank is being provided with the bearing plate that has some holes as each described boiling water type atomic reactor in the claim 1 to 12, this hole is used to accept drop.

14. boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, after this is used for the steam condensation of work by the condenser handle, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

15. boiling water type atomic reactor as claimed in claim 14 is characterized in that, in the inside of above-mentioned vertical pipe arrangement, axially is provided with the several layers orifice plate with appropriate intervals, the position in each hole does not overlap on this orifice plate and the pipe arrangement.

16. boiling water type atomic reactor as claimed in claim 14 is characterized in that, at the outer peripheral face of vertical pipe arrangement, axially with appropriate intervals and the plate-shaped fins that some different sizes are installed with horizontality, this fin does not overlap with each hole site.

17. boiling water type atomic reactor as claimed in claim 14 is characterized in that, at the outer peripheral face of above-mentioned vertical pipe arrangement, the spiral fashion fin that does not overlap with each hole site is installed.

18. boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, after this is used for the steam condensation of work by the condenser handle, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

19. boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, after this steam that will be used for work is by condenser condenses, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,

20. boiling water type atomic reactor, the steam that produces at the atomic reaction core pressure vessel is delivered to steam turbine by main steam pipe arrangement, at this, the steam that will be used for work by condenser condenses after, with condenser pump this condensed condensate water is delivered to water system by well heater, degasifier, through this water system, arrive the atomic reaction core pressure vessel as atomic pile water supply circulation; It is characterized in that,