KR101575523B1 - Hydrogen getting apparatus for nuclear power plant - Google Patents

Abstract

The present invention relates to a hydrogen collecting device for a nuclear power plant and, more specifically, to a hydrogen collecting device which comprises: a housing container; and a hydrogen collecting unit placed inside the housing container, and comprising a collecting part collecting and removing hydrogen, generated when oxygen in the housing container is exhausted. According to the present invention, the hydrogen collecting device comprises: the housing container; and the hydrogen collecting unit comprising the collecting part placed in an upper part of a catalyst to collect and remove hydrogen gas, and installed inside the housing container. Since the hydrogen collecting unit, equipped with the collecting part comprising a carbon-combined polymer-getter, is introduced, a large amount of hydrogen gas from a critical accident or coolant loss accident of a nuclear plant or hydrogen gas from the exhaustion of oxygen in the housing container is collected and removed, and therefore, an accident by the hydrogen explosion of the nuclear plant is prevented.

Description

HYDROGEN GETTING APPARATUS FOR NUCLEAR POWER PLANT BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

In the present invention, when oxygen is exhausted from inside a nuclear reactor building regardless of whether oxygen exists in a nuclear reactor building or whether a nuclear accident occurs, oxygen is generated and supplied by a non-powered oxygen supplying means, And a hydrogen collecting device for a nuclear power plant capable of preventing an accident caused by a hydrogen explosion of a nuclear power plant by removing hydrogen continuously, particularly when oxygen is exhausted due to the introduction of a collector using a polymer getter.

As a device for removing hydrogen from the inside of a containment vessel of a conventional nuclear power plant, Japanese Patent Application Laid-Open No. 1996-297194 (hereinafter referred to as "Background Art") discloses a "hydrogen removal system".

The above background art discloses a hydrogen removing apparatus for removing hydrogen gas in a containment vessel including an upper dry well containing a reactor pressure vessel and a pressure control chamber in which a pressure suppressing pool water is stored, Wherein the blowing means and the catalytic hydrogen removing means connected to the staying furnace are provided in the containment vessel so that the blowing side of the blowing means is connected to the catalytic hydrogen removing means or the blowing side of the blowing means is the catalytic hydrogen removing Is arranged in the vicinity of the means.

However, the background art is installed to remove hydrogen generated from a coolant loss accident or a serious industrial accident,

In this case, the hydrogen removal is only possible within the range of available oxygen (within about 50 hours), and it plays a role of hydrogen control due to depletion of oxygen during the concrete reaction (MCCI, Molten Core Concrete Interaction) There is a problem that can not be done.

In addition, since the hydrogen discharge through the Containment Filtered Venting System (CFVS) is also released simultaneously with the water vapor, there is a limit to lowering the concentration itself.

In addition, if the reactor building is sound, the risk of hydrogen explosion is reduced due to internal depletion of oxygen. However, if air is introduced into a defective part of the reactor building due to a slight defect, contact between air and hydrogen accumulated in the containment vessel The risk of hydrogen explosion increases. Therefore, it is urgent to develop a technology capable of collecting hydrogen even when oxygen is depleted.

Japanese Laid-Open Patent Publication No. 1996-297194 (November 12, 1996)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

When oxygen is depleted inside the reactor building regardless of whether there is oxygen inside the reactor building or whether or not there is a nuclear accident, oxygen is supplied and supplied by the non-powered oxygen supply means to prevent depletion of oxygen inside the reactor building And an object of the present invention is to prevent the accident caused by the hydrogen explosion of the nuclear power plant by removing the hydrogen continuously when the oxygen is depleted by introducing the collector using the polymer getter.

The present invention aims at enhancing the collection efficiency of hydrogen by removing hydrogen in the air moving upward by adhering hydrogen collecting means composed of an aggregate composed of a carbon bond polymer getter to the reactor building ceiling for another purpose do.

The present invention is characterized in that the plate-shaped members of the second collecting body of the hydrogen collecting means are arranged in the vertical direction on the first collecting body to form slits between the plate-shaped members so that when oxygen is not exhausted, Another object is to allow the removed air to smoothly move through the slit.

A hydrogen collecting apparatus for a nuclear power plant according to the present invention comprises: a reactor building; A first collector disposed in the housing; a first collector disposed in the housing and disposed above or below the first collector; and a second collector disposed in the upper and the lower, A hydrogen collecting means including a sieve; And an oxygen supply means disposed at a lower portion of the housing of the hydrogen collecting means.

The upper part of the reactor building according to the present invention further comprises a third collector formed of a carbon getter polymer getter.

The second collector of the hydrogen collecting means according to the present invention is characterized in that a plurality of first plate members are coated with the polymer getter, and the plate members are spaced apart from each other to form a plurality of slits.

The hydrogen collecting apparatus for a nuclear power plant according to the present invention generates and supplies oxygen by the non-powered oxygen supplying means in the case where oxygen exists in the inside of the reactor building or oxygen is exhausted inside the reactor building regardless of occurrence of the nuclear accident It is possible to prevent depletion of oxygen in the inside of the reactor building and to prevent the accident caused by the hydrogen explosion of the nuclear power plant by removing the hydrogen continuously, especially when the oxygen is depleted by introducing the collector using the polymer getter.

The present invention can increase the collection efficiency of hydrogen by removing hydrogen in the air moving upward by attaching hydrogen collecting means composed of an aggregate composed of carbon bond polymer getters to the reactor building ceiling.

The present invention is characterized in that the plate-shaped members of the second collecting body of the hydrogen collecting means are arranged in the vertical direction on the first collecting body to form slits between the plate-shaped members so that when oxygen is not exhausted, The removed air can secure smooth movement through the slit.

1 is a schematic view showing a hydrogen collecting apparatus for a nuclear power plant according to the present invention,
2 is a perspective view showing a hydrogen collecting means according to the present invention,
3 is a perspective view showing a second collector of the hydrogen collecting means according to the present invention,
4 is a perspective view showing still another modification of the oxygen supplying means according to the present invention,
5 is a perspective view showing an oxygen supply means according to the present invention,
6 and 7 are conceptual perspective views showing the opening and closing door of the oxygen supply means according to the present invention,
8 is a plan view showing an air flow space of a third collector according to the present invention,
9 is a side view showing the arrangement structure of the third and fourth collectors of the hydrogen collecting means according to the present invention,
10 is a perspective view showing an installation according to the present invention;

Hereinafter, a hydrogen collecting apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

Generally, in a nuclear power plant, if the reactor primary piping is damaged, the coolant for cooling the reactor is discharged in the form of vapor to the dry well portion in the reactor containment vessel from the broken portion of the pipe, so that the coolant in the reactor (pressure vessel) Be made

In this case, when the pressure and temperature in the dry well are rapidly increased due to the coolant discharged in the form of vapor in the drywell portion, and the coolant reduction state is long-term, in the reactor of the light water reactor type nuclear power plant, And oxygen gas.

Further, hydrogen gas is generated by causing a reaction between zirconium in the fuel cladding tube, and these gases are released from the rupture portion of the pipe into the containment vessel.

When the hydrogen gas concentration is 4 vol% and the oxygen gas concentration exceeds 5 vol%, the gas becomes flammable and the risk of explosion is generated if it is left as it is.

Therefore, in the light-water reactor type nuclear power plant, a gas containing hydrogen gas is discharged from the containment vessel out of the containment vessel by a blowing means, for example, a blower, heated to an electric heater to recombine hydrogen and oxygen into water, And a hydrogen removing system using a heating plant combiner which is cooled by a cooler and then returned to a containment vessel is used.

Also, in a nuclear power plant having a large containment vessel, a forced ignition system called an igniter is employed, or a system of injecting nitrogen as an inert gas into the containment vessel to dilute the containment vessel atmosphere (CAD).

Conventionally, a forced driving force such as a blower or heater or electricity is used, but a catalytic re-coupling device has recently been developed as a static device that does not use a driving power source or electricity.

The apparatus is manufactured in various forms such as a pellet or the like with a catalytic type hydrogen reaction material in a box, and the cartridges are stacked in a box to recombine hydrogen and oxygen through the flow path between cartridges to remove hydrogen.

That is, although the conventional hydrogen removing apparatus as described above is installed to remove hydrogen from a coolant loss accident or a serious industrial accident,

In this case, the hydrogen removal is only possible within the range of available oxygen (within about 50 hours), and it plays a role of hydrogen control due to depletion of oxygen during the concrete reaction (MCCI, Molten Core Concrete Interaction) In addition, hydrogen emissions through the Containment Filtered Venting System (CFVS) are also released simultaneously with water vapor, so there is a limit to lowering the concentration itself.

In addition, if the reactor building is sound, the risk of hydrogen explosion is reduced due to internal depletion of oxygen. However, there is a danger that the explosion of hydrogen may be caused by the air inflow at the moment when even a slight defect occurs in the reactor building. It is necessary to develop a technology capable of collecting hydrogen even when oxygen is depleted.

The hydrogen collecting apparatus for nuclear power generation according to the present invention for realizing this

As shown in Figs. 1 to 10, comprises a reactor building 1, hydrogen collecting means 20 (110) disposed inside the reactor building 1, and oxygen supplying means 30.

First, as shown in FIG. 1, a nuclear reactor 3 and a cooling system are installed inside a reactor building 1 according to the present invention, and a variety of accessory devices, safety protection facilities, and the like are stored.

Next, as shown in FIGS. 1 to 4, the hydrogen collecting means 20 according to the present invention includes:

A catalytic first collector 21 embedded in the housing 10 and a second collector 22 disposed on the upper or lower portion of the first collector 21. The housing 10 is disposed in the reactor building 1, And a body (23).

The housing 10 of the hydrogen collecting means according to the present invention can be manufactured in various shapes such as a box shape or a cylindrical shape. However, considering the arrangement and handling of the collector, it is preferable that the housing 10 is formed in a box shape.

The first collecting body 21 of the water collecting means according to the present invention includes a plurality of collecting bodies in the form of a plate and is arranged vertically in the housing 10 in a layered structure. The collecting body is a mesh or mesh 21a, .

In addition, an insertion portion (not shown) is formed on one side of the housing 10 so that the first collecting body 21 can be inserted therein, and the first collecting body 21 is mounted on the inner side surface A mounting portion (not shown) may be formed.

In this case, when the first collecting body 21 is inserted through the inserting portion, both side portions of the first collecting body 21 are slid on the receiving portion to be drawn into the housing 10, and the pulling out is possible.

In addition, the first collector 21 may be formed in a drawer shape. At this time, it is preferable that the lower surface of the drawer collector is made of a porous plate panel.

A platinum catalyst or a nickel catalyst is applied to the mesh or mesh 21a so that the hydrogen and oxygen can be easily bonded to the first collector 21,

Alternatively, the platinum catalyst or the nickel catalyst may be formed in a particulate structure such as pellets and disposed on the porous plate panel of the drawer collector.

When the catalyst is produced in the form of pellets, the catalyst in the form of pellets must be made larger than the particle size of the perforated plate panel to prevent the catalyst from being detached from the mesh or mesh 21a.

As shown in FIGS. 2 to 4, the second collecting body 23 of the hydrogen collecting means according to the present invention is disposed above or below the first collecting body 21 or vertically, and the polymer getter 23b ).

The second collector 23 is constituted by a structure in which a mesh or mesh 21a is provided on the first plate member 23a so that the polymer getter 23b is applied to the mesh or mesh 21a or the pellet, And can be accommodated in the drawer-type collecting part.

Particularly, the second collecting body 23 collects and removes hydrogen by the polymer getter 23b when oxygen is depleted inside the reactor building 1. However,

If the oxygen is not depleted, it is preferable that the hydrogen-depleted air can be arranged by the first collector 21 so as not to interfere with the flow.

To this end, when the second collecting body 23 is disposed above the first collecting body 21, a plurality of plate-shaped members are arranged in the vertical direction and are spaced apart from each other to form a slit 23c (slit) .

That is, the slit 23c of the second collecting body 23 forms a flow space for the movement of the air from which the hydrogen has been removed by the first collecting body 21, so that when the oxygen is not depleted, It is possible to secure smooth flow and to efficiently operate the apparatus.

In this case, that is, when the oxygen is not depleted, when the hydrogen-removed air moves through the second collector 23, hydrogen is not contained in the air, so that the polymer getter 23b and the hydrogen bond with each other The problem of the polymer getter 23b of the second collecting body 23 being consumed does not occur.

The second collecting body 23 according to the present invention is constituted such that the first plate members 23a are separated from each other and the first plate members 23a are connected to each other so as to maintain a predetermined space, A support member 23d is provided.

The support member 23d is attached to the corner of each first plate member 23a and serves to integrally connect the first plate members 23a while maintaining a predetermined spacing between the first plate members 23a .

The second collecting body 23 is provided with a fixing member 23e protruding outwardly from the first plate member 23a disposed at both end portions of the housing 10, So that the second collecting body can be fixedly installed on the housing 10, so that the stable arrangement structure of the second collecting body 23 can be maintained.

In this case, the fixing member 23e is joined to the inner side surface of the housing 10 by welding or an insertion hole or an insertion groove (not shown) or the like capable of fitting the fixing member 23e into the housing 10 is formed So that it can be fixed by a method of being inserted and fixed.

Although not shown in the accompanying drawings, the second collecting body 23 can be disposed under the first collecting body 21, but when oxygen is not depleted, air is supplied to the second collecting body 21, It is preferable that the second collecting body 23 can be disposed above the first collecting body 21 because the efficiency of operation of the apparatus is deteriorated because the collecting body 23 first contacts the collecting body 23.

Further, as shown in FIGS. 1 and 8 to 10, the hydrogen collecting means according to the present invention may be provided with a third collecting body 111 as another hydrogen collecting means 110 on the upper part of the nuclear reactor building, that is, the ceiling .

This means that the air containing hydrogen can move upwards,

In this case, even when the air moves directly to the upper portion without passing through the first and second collectors 21 and 23, or when the air moves through the first and second collectors 21 and 23, If the function is lost and hydrogen remains in the air, it is necessary to remove the hydrogen.

1, the installation 100 is fixed to the upper portion of the reactor building 1, that is, the ceiling 5, by another hydrogen collecting means 110, and is mounted on the installation 100. As shown in FIG.

This is because the hydrogen-containing air passes through the catalytic type collecting device or another type of collecting device to collect and remove the hydrogen, but does not pass through these collecting devices, There is a problem that it is difficult to remove hydrogen in the reactor building 1 irrespective of whether oxygen is depleted or not.

Therefore, in the present invention, it is proposed to arrange the hydrogen collecting means 110 in the ceiling 5 of the reactor building 1 to collect hydrogen in the air moving to the upper portion of the reactor building 1 to increase the amount of collected hydrogen.

The hydrogen collecting means 110 is composed of a fixture 100 mounted on the ceiling 5 of the reactor building 1 and a third collector 111 mounted on the fixture 100.

First, as shown in FIGS. 1 and 8 to 10, the third collector 111 is formed of a plate-like structure 111a composed of a mesh (or mesh), and a network of the plate-like structure 111a is provided with a carbon bond Of a polymer getter is applied.

As shown in FIG. 8, the platelike structures 111a are stacked in layers to secure a constant capacity,

In this case, in order to further increase the hydrogen collection rate, the network of the plate-shaped structures 111a stacked in layers is arranged in a staggered manner so that the inter-layer air flow space 111b is densely arranged.

Therefore, the air passing through the dense air flow space 111b has a high contact rate with the third collector 111, thereby enhancing the collection efficiency of the hydrogen, thereby improving the reliability of the apparatus.

As described above, the third collector 111 is formed of a polymer getter to capture oxygen when oxygen is depleted inside the reactor building 1,

Considering the hydrogen moving upward in a state in which oxygen is not depleted, the introduction of the catalytic fourth collector 113 using a platinum catalyst or a nickel catalyst can be considered.

In this case, the fourth collecting body 113 may be contained in the installation 100 alone, or the third collecting body 111 and the fourth collecting body 113 may be incorporated together.

Also, in the case where the oxygen is depleted, the fourth collecting body 113 may be embedded in the fixture 100 together with the third collecting body 111.

As shown in FIG. 9, when the third collector 111 and the fourth collector 113 are incorporated together, it is preferable that the collectors are vertically disposed,

This is for the purpose of enabling hydrogen to be removed by at least one collector when the air containing hydrogen is moved to the upper portion of the reactor building 1 regardless of whether the oxygen is depleted or not and passes through the collector.

That is, when oxygen is not depleted, if hydrogen is removed only by the third collecting body 111, the consumption rate of the third collecting body 111 composed of the polymer getter relatively increases, and if the third collecting body 111 is used for a long time, ) May be deteriorated, or the function may be lost.

Therefore, the third collecting body 111 and the fourth collecting body 113 can be used together so as to extend the service life of the third collecting body 111 and to perform the original function even in an extreme situation such as a nuclear accident. .

As shown in Fig. 9 (a), a configuration in which the third and fourth collectors 111 and 113 are arranged in the upper and lower regions may be arranged in the upper and lower regions, respectively. Alternatively, as shown in Fig. 9 (b) It is also possible to arrange them alternately.

9C, a fourth collector 113 is disposed in the upper layer 113A and the lower layer 113B, and the upper collector layer 113A and the lower collector layer 113B of the fourth collector 113 It is also possible that the third collector 111 is disposed.

If the oxygen is not depleted, the consumption of the third collector 111 can be lowered because hydrogen is removed by the fourth collector 113 disposed in the upper layer 113A and the lower layer 113B.

On the other hand, when the oxygen is depleted, the introduced air passes through the fourth collector 113 as it is, and the air thus passed is discharged after the hydrogen is removed by the third collector 111.

Therefore, when the oxygen is not depleted, unnecessary consumption of the polymer getter is reduced to lower the consumption rate of the third collector 111, thereby prolonging the life of the fourth collector 111 to prepare for depletion of oxygen Thereby enabling efficient operation of the apparatus.

1 and 10, a fixture 100 according to the present invention includes a receptacle 101 for accommodating a collecting body, and a fixing unit 110 for fixing the receptor 101 to the ceiling 5 of the reactor building 1 And a connecting member (103)

The receptacle 101 of the fixture 100 can be manufactured in various shapes such as a flat plate shape and an arched shape, and an attached receptacle 101 is shown in the attached drawings.

In this case, the third collecting body 111 of the hydrogen collecting means 110 is directly attached to the ceiling 5 (see FIG. 1) by the connecting member 103 or embedded in the receptacle 101 of the fitting 100 (See Fig. 10).

4, the receiver 101 of the installation 100 is constituted by a panel 101a in the form of a perforated plate when the collector 111 is installed with the receiver 101, Is introduced through the panel 101a,

The introduced air is discharged through the perforated panel 101a after the hydrogen is removed by the collector 111. [

In addition, the connecting member 103 of the fixture 100 may be configured to be adjustable in length,

This is for easier and easier maintenance and repair work, such as when the collector 101 is moved up and down to replace the collector, or when only the polymer getter collector is used and then the catalyst collector is additionally installed.

1, 2, and 4, the oxygen supply means 30 according to the present invention includes:

When the oxygen is depleted, the oxygen is generated and supplied to the first collector 21 to activate the catalytic reaction. The first collector 21 is disposed below the housing 10 and is disposed below the first collector 21.

The layered structure 31 is composed of a mesh or a second plate-like member 31a having a honeycomb shape in the form of a mesh.

The net of the second plate member 31a or the network 21a is coated with potassium superoxide (KO2) or formed in the form of pellets and accommodated in the upper part of the layered structure 31 .

In this case, when the layered structure 31 is composed of a plurality of second plate-shaped members 31a as shown in Figs. 2 and 5 (b), the second plate-shaped members 31a are arranged radially in a fan-

Or may be stacked and arranged in the form of being housed in the housing 35 as shown in Figs. 4 and 5 (a).

Particularly, potassium oxide (33) reacts with carbon dioxide by the following formula to generate oxygen.

That is, '4KO ₂ + 2CO ₂ -> 2K ₂ CO ₃ + 3O ₂ ', potassium carbonate (K ₂ CO ₃ ) generated from the chemical reaction formula is chemically very stable.

Therefore, the oxygen supply means 30 can generate and supply oxygen through the chemical reaction between the carbon dioxide and the potassium oxide 33 in the air, so that it is possible to generate and supply oxygen without power supply.

This is because, in the event of a nuclear accident, the reactor building 1 is stopped from supplying electric power, so that it can not generate and supply oxygen in the case of the oxygen supplying means 30 requiring electric supply,

Therefore, in case of a nuclear accident, if oxygen is depleted in the reactor building (1), it is difficult to remove hydrogen because it can not supply oxygen, and eventually there is a risk of hydrogen explosion.

That is, according to the present invention, oxygen can be generated and supplied in the event of a nuclear accident through the non-powered oxygen supply means 30, so that the risk of hydrogen explosion can be prevented.

4, 6 and 7, the oxygen supply means 30 may be arranged such that the layered structure 31 is disposed on the enclosure 35,

In this case, when the layered structure 31 is formed into a radial fan shape, the housing 35 is also formed in a fan shape, and the lower end and the side portion of the housing 35 are opened or the lower end of the housing 35 and the side panel The oxygen generated by the reaction of the carbon dioxide and the potassium oxide 33 in the air is discharged to the side portion of the layered structure 31 to form air Oxygen is discharged toward the inflow portion 50 side.

The layered structure 31 may be accommodated in a structure in which a plurality of second plate-shaped members 31a are laminated in the housing 35. [

No matter how the layered structure 31 is arranged, a large number of enclosures 35 are mounted so as to be spaced from each other on both sides of the bottom or the front and rear surfaces of the housing 10, and the air inlet 50 is formed in the spaced spaces.

In the drawings, the housing 35 is mounted on both sides or front and rear surfaces of the housing 10, but it may be mounted on each side of the housing 10 if necessary.

When the layered structure 31 is vertically stacked in the enclosure 35, each enclosure 35 is composed of a box-shaped frame and a plurality of panels 35a mounted on the frame.

It is preferable that at least the panel 35a on the side of the air inflow section 50 and the panel 35a in the form of a perforated plate are provided on the lower end or the side panel 35a among the panels 35a,

This is because air must be introduced into the enclosure 35 through the lower portion of the enclosure 35 or the side panel 35a and the generated oxygen must be discharged to the air inflow portion 50 side.

In this case, the upper panel 35a of each enclosure 35 may be formed of a perforated plate. However, in order to prevent the generated oxygen from being discharged in a direction other than the air inflow part 50, that is, Panel 35a.

Each of the enclosures 35 is formed with a space 60 so that the enclosures 35 are separated from the bottom of the housing 10 by a predetermined height so that air can be introduced into the enclosures 35, So that the air can flow smoothly.

Furthermore, as shown in FIG. 1, the oxygen sensor 30 according to the present invention further includes an oxygen sensor 40,

The enclosure 35 may be provided with an opening / closing door 37 that is opened and closed in response to a detection signal from the oxygen sensor 40.

This is because, when oxygen is depleted inside the reactor building 1 even in the event of a nuclear accident or a nuclear accident, the oxygen detecting sensor 40 detects an oxygen depletion signal and opens the opening / closing door 37, And oxygen is released only to the outside.

That is, the potassium oxide 33 of the oxygen supplying means 30 is exhausted by generating oxygen through reaction with the diatomaceous carbon, so that the opening / closing door 37 is opened only when oxygen is exhausted regardless of the accident of the nuclear reactor , When the oxygen is present in the reactor building 1, the opening / closing door 37 is closed to prevent the potassium oxide 33 from being exhausted.

Whereby the service life of the oxygen supply means 30 can be prolonged for a long time.

At this time, the opening and closing door 37 can be manufactured in various forms, and it can be operated by a general motor or an actuator,

It is also possible that the power supply is cut off in the event of a nuclear accident so that operation by non-power can be performed.

Closing door 37 is operated in the non-powered manner as shown in FIG. 6, the opening / closing door 37 is arranged in the vertical direction on the side of the panel 35a on the side of the air inlet 50, The wire or the rope 39 is connected to the upper end of the door 39 and the closed state is maintained. When the oxygen is exhausted, the worker disconnects or loosens the wire 39 or the rope 39 at the remote site, So that it can be lowered and opened.

Further, it is also possible that the worker pulls the wire or the rope 39 at a remote place to open and close the opening / closing door 37 to open.

In this case, a stopper 38 for supporting the opening / closing door 37 at the lower ends of both frames adjacent to the panel 35a on the side of the air inflow portion 50 is provided to maintain the stopped state in the closed state of the opening / closing door 37 Respectively,

In this case, it is preferable that the opening / closing door 37 is raised or lowered, or the stopper 38 is rotated downward so that the opening / closing door 37 can be lowered by its own weight.

Furthermore, as shown in FIGS. 6 and 7, the side panel 35a of each housing 35 and the lower panel 35a may be provided with an opening / closing door 37,

When oxygen is present in the reactor building 1, the opening / closing door 37 is closed to block the inflow of air into the enclosures 35. When oxygen is exhausted, the opening / closing door 37 is opened So that air can be introduced into each of the enclosures 35.

In this case, since the opening / closing door 37 is vertically arranged in the side panel 35a of each housing 35, it can be opened by its own weight like the open / close door 37 on the public inlet side, It is possible,

In this case, the opening / closing door 37 can be opened in the same manner as the panel 35a on the air inlet 50 side.

5, the opening / closing door 37 disposed on the lower panel 35a of each housing 35 is arranged in the horizontal direction. Therefore, when using the wire and the rope 39, It is possible to pull the wire or the rope 39 at a remote place so that the opening and closing door 37 can be opened laterally through the sliding operation.

In addition, when the layered structure 31 is arranged in a radial fan shape, the air inlet portion 50 side panel 35a, that is, the side panel 35a or the lower panel 35a, ) Can be introduced.

In this case, in the case of the opening / closing door 37 disposed on the side panel 35a, the opening / closing door 37 disposed on the lower panel 35a has its own weight or an open structure based on the elevating operation And is slid in the lateral direction.

On the other hand, the collectors of the hydrogen collecting means are stacked vertically on the housing or on the installation, and the plate-shaped members of the oxygen supplying means are also stacked on the housing in the vertical direction. Capacity, design criteria, flow characteristics of hydrogen gas, etc. can be increased or decreased in consideration of design.

Further, the hydrogen collecting means according to the present invention can be applied not only to a nuclear power plant, but also to facilities for nuclear waste, or to facilities where there is a risk of hydrogen explosion due to the generation of hydrogen gas.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments disclosed herein, but is capable of numerous modifications and alterations, The present invention is not limited thereto.

1: Reactor building 3: Reactor
5: ceiling 10: housing
11: discharging portion 20: hydrogen collecting means
21: first collector 21a: mesh or mesh
23: second collector 23a: first plate member
23b: polymer getter 23c: slit
23d: support member 23e: fixing member
30: oxygen supply means 31: second plate member
33: Potassium oxide 35: Enclosure
35a: panel 37: opening / closing door
38: Stopper 39: Wire or rope
40: oxygen sensor 50: air inlet
60: Space part 100: Fixture
101: receptor 101a: porous
103: connecting member 110: hydrogen collecting means
111: third collector 111a: plate-like structure
111b: air flow space 113: fourth collector
113A: upper layer 113B: lower layer

Claims (14)

Reactor building (1);
A housing 10 disposed inside the reactor building 1,
A catalytic first collector 21 embedded in the housing 10,
A hydrogen collecting means 20 built in the housing 10 and arranged above or below the first collecting body 21 or up and down and including a second collecting body 23 composed of a carbon getter polymer getter, ; And
And oxygen supplying means 30 disposed under the housing 10 of the hydrogen collecting means 20,
The second collector (23) of the hydrogen collecting means is constituted by applying the polymer getter to a plurality of first plate members (23a)
The first plate-shaped members 23a are spaced apart from each other to form a plurality of slits 23c,
The second collecting body (23) of the hydrogen collecting means is disposed above the first collecting body (21)
Wherein the first plate members (23a) are arranged in a vertical direction so that the slits (23c) are arranged vertically.
The method according to claim 1,
Further comprising a third collector (111) composed of a carbon getter polymer getter on the reactor building (1).
delete delete The method according to claim 1,
Wherein the second collector (23) further comprises a support member (23d) integrally connecting the first plate member (23a).
6. The method of claim 5,
The first sheet member (23a) disposed on both sides of the second collector (23) further comprises a fixing member (23e) coupled to the inner wall of the housing (10) Device.
The method according to claim 1,
Wherein the oxygen supplying means (30) comprises a flat plate-like layered structure (31) provided with potassium oxide (KO2).
8. The method of claim 7,
The layered structure 31 of the oxygen supply means 30 is coated with the potassium oxide on a plurality of honeycomb-shaped second plate-shaped members 31a,
And the second plate-shaped member (31a) is arranged in a radial fan shape.
8. The method of claim 7,
The plurality of layered structures 31 of the oxygen supplying means 30 are disposed below the first collecting body 21 and the layered structures are spaced apart from each other to form the air inflow portion 50 Hydrogen capture equipment for nuclear power plants.
8. The method of claim 7,
Further comprising a space (60) spaced from the bottom surface of the laminated structure (31) and the housing (10).
8. The method of claim 7,
Wherein the oxygen sensor (40) is further provided in the reactor building (1) so that oxygen is released only when the oxygen supplying means (30) is depleted of oxygen.
12. The apparatus according to claim 11, wherein the oxygen supply means (30)
The housing 35,
Wherein the housing (35) further comprises an opening / closing door (37) for opening and closing according to a sensing signal of the oxygen sensing sensor (40).
3. The method of claim 2,
In the third collecting body 111, the plate-like structures 111a in the form of a network are layered and arranged in layers,
Wherein the polymer getter is applied to a mesh network of the plate structure (111a).
14. The method of claim 13,
Wherein the mesh structures of the plate-shaped structures (111a) of the third collector (111) are arranged in a staggered fashion to densely form the inter-layer air flow space (111b).

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