JPH10160882A - Cooling pump building of reactor power station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size of cooling pump building volume by providing the cooling equipment of turbine system for a plurality of units in the first floor of one building. SOLUTION: In a valve bit room, water circulation pumps 1 for 2 units, turbine auxiliary component cooling sea-water pumps 5, turbine auxiliary component cooling system heat exchangers 3 turbine auxiliary component cooling water pumps 4 and electric parts 6 concerning them are provided symmetrically in left and right. The turbine auxiliary component cooling system heat exchangers 3 share a cooling pipe tube withdrawal space 9 with those in other unit each other. To the circulation water pipe 2 for the discharge of the circulation water pump 1, a header 18 is provided. The circulation water pump 1 takes in sea-water from an intake path 20 for the circulation water pump provided in a bulkhead 19 and send water via a circulation pipe valve 11 into the circulation water pipe 2. Similarly, the turbine auxiliary component cooling sea-water pumps 5 takes in sea-water form an inlet channel 21 for turbine auxiliary component cooling sea-water pumps. In this manner, equipments of low seismic class are arranged on the first floor of one building to make a cooling pump building.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling pump building of a nuclear power plant for accommodating cooling equipment of a nuclear power plant.

[0002]

2. Description of the Related Art For example, a cooling system for a turbine system in a nuclear power plant includes a circulating water pump, a turbine auxiliary cooling seawater pump, a turbine auxiliary cooling system heat exchanger, a turbine auxiliary cooling water pump, and an electric power related thereto. There are air conditioners and the like, and these cooling facilities are housed in a cooling pump building.

FIG. 16 is an explanatory view showing the arrangement of cooling equipment in a conventional cooling pump building of a nuclear power plant.
(A) is a plan view of the upper floor, FIG. 16 (b) is a plan view of the lower floor,
FIG. 16C is a side view of the cooling pump building. The cooling pump building of the conventional nuclear power plant is a building of a concrete structure with one unit alone, and has two layers, upper and lower. In other words, the cooling equipment of the turbine system for one unit is housed in one cooling pump building having two upper and lower layers.

As shown in FIG. 16A, three circulating water pumps 1 and three turbine auxiliary cooling seawater pumps 5 are housed on the upper floor, and an air conditioner 7 is housed therein. . A circulating water pipe 2 is connected to each circulating water pump 1 via a circulating water pipe valve 11. on the other hand,
On the lower floor, as shown in FIG. 16 (b), three turbine accessory cooling system heat exchangers 3 and three turbine accessory cooling water pumps 4 are stored, and drainage and the like in the building are collected. The sump 8 is stored. The cooling tube tube drawing space 9 of the turbine auxiliary cooling system heat exchanger 3 is separately provided for each building.

[0005] As shown in FIG. 16 (c), seawater is taken into the circulating water pump 1 from a circulating water pump intake channel 20 via a circulating water pump bell mouth 22 and supplied to a circulating water pipe 2. You. A gantry crane 15 for maintenance and inspection is provided above the circulating water pump 1.

As described above, the conventional cooling pump building comprises three circulating water pumps 1, three turbine auxiliary cooling seawater pumps, three auxiliary turbine cooling system heat exchangers 3, and four auxiliary turbine cooling water pumps. One unit is stored in a two-story building.

[0007]

However, since such a conventional cooling pump building is designed as a single unit building, the cooling pipe tube drawing space of the turbine auxiliary cooling system heat exchanger is separately provided. Will be secured. Therefore, even when a plurality of units are designed and constructed at the same time, the cooling pipe tube drawing space 9 of the turbine auxiliary cooling system heat exchanger 3 is secured, so that the occupied area of the cooling pump building increases. That is,
The cooling pipe drawing space 9 of the turbine auxiliary cooling system heat exchanger 3 in the cooling pump building of each single nuclear power plant is:
It became proportional to the number of units, affecting the size of the cooling pump building. In addition, since the storage facilities were arranged in two or more levels, the building volume was large and the amount of excavated material was large.

[0008] It is an object of the present invention to provide a cooling pump building for a nuclear power plant that can reduce the size of the cooling pump building when a plurality of units are designed and constructed at the same time.

[0009]

According to a first aspect of the present invention, two units of turbine cooling equipment are installed on one floor in one building.

According to the first aspect of the present invention, a two-unit integrated turbine system cooling system is installed on one level. Therefore, the building volume can be small.

According to a second aspect of the present invention, in the first aspect, the cooling system of the turbine system includes a circulating water pump, a turbine auxiliary cooling seawater pump, a turbine auxiliary cooling system heat exchanger, and a turbine auxiliary cooling water pump. And electric air-conditioning equipment related thereto.

According to the second aspect of the present invention, in addition to the operation of the first aspect of the present invention, equipment having a low seismic class, such as a circulating water pump, is installed on one level, so that the apparatus is rich in earthquake resistance.

According to a third aspect of the present invention, in the second aspect of the invention, two units of circulating water pumps are installed in parallel, and a turbine auxiliary cooling seawater pump is arranged between the circulating water pumps of each unit. The screen equipment for two units and the intake channel are arranged on the revetment side in front of it.

According to a third aspect of the present invention, in addition to the operation of the second aspect, a turbine accessory cooling seawater pump is disposed between the circulating water pumps of the respective units, and both sides of the turbine accessory cooling seawater pump. The flow of the intake channel to the provided circulating water pump is averaged.

According to a fourth aspect of the present invention, in the third aspect of the present invention, two units of the intake channel are shared.

According to a fourth aspect of the present invention, in addition to the function of the third aspect of the present invention, two units of the intake channel are used in common, and the amount of partition walls in the intake channel is reduced.

According to a fifth aspect of the present invention, in the second aspect of the present invention, a cooling pipe tube drawing space required for maintenance of a cooling pipe tube inside the heat exchanger of the turbine auxiliary cooling system is changed to a cooling pipe of another unit. A turbine auxiliary cooling system heat exchanger is installed so as to be shared with the tube drawing space.

According to the fifth aspect of the present invention, in addition to the function of the second aspect of the present invention, the space for drawing out the cooling tube of the turbine auxiliary cooling system heat exchanger is shared with other units, and the building is made compact.

According to a sixth aspect of the present invention, there is provided the first or second aspect.
In the invention of the invention, a loading / unloading hatch for loading / unloading of a cooling system of a turbine system, a building entrance for accessing a building, a stair to a maintenance stand, and a sump for collecting drainage in the building,
The two units are provided so as to be shared with each other.

According to the sixth aspect of the invention, in addition to the operation of the first or second aspect, a loading / unloading hatch or the like for loading / unloading the cooling system of the turbine system is shared, thereby achieving a compact building.

According to a seventh aspect of the present invention, in the third aspect of the present invention, a sump for collecting drainage in the building is provided at the back of the intake channel of the turbine auxiliary cooling seawater pump.

According to the seventh aspect of the invention, in addition to the function of the third aspect of the present invention, the space behind the intake channel of the turbine auxiliary cooling seawater pump is effectively used.

According to an eighth aspect of the present invention, in the third aspect of the present invention, a screen cleaning pump having a small water intake is provided together with the turbine auxiliary cooling seawater pump on the back of the intake channel of the turbine auxiliary cooling seawater pump. They are arranged collectively.

According to an eighth aspect of the present invention, in addition to the function of the third aspect of the present invention, a turbine auxiliary cooling seawater pump and a screen cleaning pump are collectively arranged at the back of the intake passage of the turbine auxiliary cooling seawater pump. Make effective use of.

According to a ninth aspect of the present invention, in the third aspect of the present invention, a horizontal shaft type is installed as a turbine auxiliary cooling seawater pump, and seawater is taken in from a water intake channel by a horizontal suction pipe from an intake bit. Things.

According to the ninth aspect of the present invention, in addition to the function of the third aspect of the present invention, a horizontal shaft type is installed as a turbine auxiliary cooling seawater pump, and a space formed above the horizontal axis type is effectively used.

According to a tenth aspect of the present invention, in the first aspect of the present invention, a building for accommodating the reactor auxiliary cooling equipment is installed on the same row adjacent to the building for accommodating the turbine cooling equipment.

According to the tenth aspect of the present invention, in addition to the operation of the first aspect of the present invention, the cooling system for the turbine system and the cooling equipment for the reactor auxiliary equipment are housed in a building installed adjacent to the building, thereby achieving a compact building. .

According to an eleventh aspect of the present invention, in accordance with the tenth aspect of the present invention, a common gantry crane or a common gantry crane for checking a cooling pump is provided across a building for housing a turbine-based cooling system and a building for housing a reactor auxiliary equipment cooling system. An overhead crane was installed.

In the eleventh aspect of the invention, in addition to the function of the tenth aspect, a common gantry crane or a common overhead crane straddling the buildings of the turbine system cooling equipment and the reactor auxiliary equipment cooling equipment is shared.

According to a twelfth aspect of the present invention, in the first aspect of the present invention, in addition to the turbine accessory cooling seawater pump, the turbine accessory cooling system heat exchanger, and the turbine accessory cooling water pump, which are turbine system cooling equipment, or Instead of these, a reactor accessory cooling seawater pump as a reactor accessory cooling facility, a reactor accessory cooling water system heat exchanger, and a reactor accessory cooling water pump are provided.

According to a twelfth aspect of the present invention, in addition to the operation of the first aspect of the present invention, a reactor auxiliary equipment cooling seawater pump, a reactor auxiliary equipment cooling water system heat exchanger, and a reactor auxiliary equipment cooling equipment are provided. A cooling water pump will be installed in a one-story building. Therefore,
The building volume is small.

According to a thirteenth aspect, in the third aspect, a header common to the two units is provided at the discharge portion of the two-unit circulating water pump.

According to the thirteenth aspect of the invention, in addition to the operation of the third aspect of the present invention, the operation of another unit is not hindered during the periodic inspection of one unit.

[0035]

Embodiments of the present invention will be described below. FIG. 1 is a plan view of the inside of a cooling pump building according to the first embodiment of the present invention. As shown in FIG.
When designing and constructing two or more units at the same time, two units of turbine cooling equipment are installed on one floor in one building. That is, in the valve pit chamber, the circulating water pump 1, the turbine accessory cooling seawater pump 5, the turbine accessory cooling system heat exchanger 3, the turbine accessory cooling water pump 4, and the electric components 6 related thereto are provided for two units. Each is installed symmetrically. The two units of the turbine accessory cooling system heat exchanger 3 are arranged so as to share the cooling tube tube drawing space 9 with the turbine accessory cooling system heat exchanger 3 of the other unit. The circulating water pipe 2 for discharging the circulating water pump 1 has a header 1
8 are provided.

A circulating water pump 1 which is a cooling device of a condenser
Takes seawater from a circulating water pump intake channel 20 provided on the revetment 19 and passes the seawater to the circulating water pipe 2 via the circulating water pipe valve 11. Similarly, the turbine accessory cooling seawater pump 5 takes in seawater from the turbine accessory cooling seawater pump intake channel 21. An electrolytic iron ion supply device 17 for preventing corrosion of seawater pipes and a sump 8 for collecting water such as drainage in a building are provided on the back of the turbine auxiliary cooling seawater pump intake channel 21. Further, at both ends of the valve pit chamber, an access base 12 on which an operator is mounted when operating valves and the like is provided, and an access stair 13 is provided on the access base.

FIG. 2 is a plan view of the upper part of the cooling pump building according to the first embodiment of the present invention. At the top of the cooling pump building, a hatch 1 for loading and unloading equipment shared by two units
0 and a circulating water piping valve carry-in / out hatch 14 are provided, and an air conditioner 7 is provided. A gantry crane rail 16 is provided above the circulating water pump 1 and the turbine accessory cooling seawater pump 5, and the gantry crane 15 runs as shown in FIG. FIG. 3 is a side view of the cooling pump building according to the first embodiment of the present invention.

As described above, in the first embodiment, when two or more units are designed and constructed at the same time, the circulating water pump 1, the turbine accessory cooling seawater pump 5, and the turbine accessory cooling system for two units are used. The heat exchanger 3, the turbine auxiliary cooling water pump 4, the electric components 6, and the air-conditioning equipment 7 having low seismic resistance class are arranged in one floor of one building to be a cooling pump building of a nuclear power plant. This aims to reduce the size of the concrete mat and the building, and reduce the amount of excavation.

Here, in the first embodiment, two units of the turbine accessory cooling system heat exchangers 3 are arranged to face each other, which is necessary when inspecting the cooling pipes of the turbine accessory cooling system heat exchanger 3. Cooling tube withdrawal space 9
Units are shared. That is, in the two-unit turbine accessory cooling system heat exchanger, the cooling tube tube drawing space 9 required for maintenance of the cooling tube tubes inside the turbine accessory cooling system heat exchanger is replaced with the cooling tube tube drawing space of other units. It is installed so that it can be shared with.

As shown in FIG. 2, one hatch 10 for loading and unloading equipment is provided in the upper central part of the cooling pump building, and the turbine auxiliary equipment cooling seawater pump 5, the turbine auxiliary equipment cooling system heat exchanger 3 , Turbine auxiliary cooling water pump 4, electric components 6
Also, two units are commonly used for carrying in and out of the air conditioner 7 and the like.

On the other hand, a steel column is built from the floor of the valve pit room in which the turbine auxiliary cooling system heat exchanger 3 and the like are arranged, and the upper roof is made of a steel structure to reduce the weight of the building. Also,
In order to secure an access space having a height of about 2 m below the circulating water pipe 2, the floor level of the valve pit room in which the turbine auxiliary cooling system heat exchanger 3 and the like are arranged is lowered, and further, the operation of valves and the like is performed. The height of the gantry is approximately 2 m, which is used as the valley 12 for valve operation and access.

The equipment loading / unloading hatch 10 for loading and unloading the equipment, the entrance of the building for accessing the building, and the stairs 1 for accessing the access gantry 12 for maintenance.
3. Two units share the sump 8 for collecting wastewater in the building. As shown in FIG. 1, a header 18 is provided in the circulating water pipe 2 for discharging the circulating water pump 1.
The header 18 can be arranged both inside and outside the cooling pump building.

As shown in FIG. 1, the turbine accessory cooling seawater pump 5 and the turbine accessory cooling seawater pump intake channel 21 are disposed on the back of the turbine accessory cooling seawater with respect to the intake direction. A chamber at the same level as the pump intake channel 21 is provided. An electrolytic iron ion supply device 17 is provided in this chamber, and electrolytic iron ions are supplied from the electrolytic iron ion supply device 17 to the seawater pipe in order to prevent corrosion of the seawater pipe. In addition, a sump 8 for collecting water such as drainage in the building is installed in the room to share two units. Further, the gantry crane rail 16 is disposed so as to sandwich the circulating water pump 1 and the turbine auxiliary cooling seawater pump 5 and the like.
A stand is installed and shared by two units.

As described above, the two-unit turbine accessory cooling seawater pump 5 is arranged at the center, and the two-unit turbine accessory cooling seawater pump 5 at the center is arranged on the seawall near the sea side of the building. As a result, the back of the turbine auxiliary cooling seawater pump intake channel 21 is used as a device installation space, and devices such as the sump 8 and the electrolytic iron ion supply device 17 are installed.

Next, FIG. 4 is an explanatory view of the water intake channels 20, 21 of the circulating water pump 1 and the turbine auxiliary cooling seawater pump 5. If the seabed on the side of the revetment 19 is shallow, the intake channel 20
The screen equipment of 21 will also be shallow. For this reason, it is necessary to supplement the depth in order to secure the intake flow rate.
The width of 0 and 21 becomes wider. In this case, as shown in FIG. 4, when the circulating water pump 1 is installed in the center of the cooling pump building, a flow 38 of the intake channel to the circulating water pump 1 occurs.

Therefore, the flow of the circulating water pump intake passage 20 is averaged with respect to the circulating water pump 1 so that the offset flow 38 does not exist. Therefore, the intake channel 2 for the circulating water pump
0 is disposed in front of each circulating water pump 1, a turbine auxiliary cooling seawater pump 5 is disposed between the two units of circulating water pumps 1, and a turbine auxiliary cooling A seawater pump intake channel 21 is installed.

As described above, the circulating water pump 1
And, in order to shorten the intake channel to the turbine auxiliary cooling seawater pump 5, two screen units and two circulating water intake channels 20 are arranged on the revetment 19 side in front of the circulating water pump 1,
A turbine auxiliary cooling seawater pump intake channel 21 is disposed between the two circulating water pump intake channels 20. This makes it possible to shorten the distance from the revetment 19 to the cooling pump building, make it straight, and reduce the intake channel volume.

Further, as shown in FIG. 5, the intake passage 20 for the circulating water pump and the intake passage 21 for the turbine auxiliary cooling seawater pump.
2 units common water intake channel 37
It is also possible to use By sharing two intake channels, the volume of the bulkhead of the intake channel can be reduced.

As shown in FIG. 6, in addition to the turbine auxiliary cooling seawater pump 5, a screen cleaning pump 23 can be arranged on the back of the turbine auxiliary cooling seawater pump intake channel 21. is there. That is, in addition to the two-unit turbine auxiliary cooling seawater pump 5 installed at the center of the intake channel, cooling pumps such as the screen cleaning pump 23 having a small intake volume are collectively arranged. This allows
The cooling pump building will be made more compact.

Next, a second embodiment of the present invention will be described. FIG. 7 is an explanatory diagram of the second embodiment of the present invention,
FIG. 7A is a plan view of the inside of the cooling pump building, and FIG.
FIG. 7B is a plan view showing an arrangement of a water intake pit in the cooling pump building, and FIG. 7C is a side view showing an arrangement in the cooling pump building. In the second embodiment, a horizontal axis type turbine accessory that directly takes in water from an intake pit 40 through a horizontal suction pipe 39 instead of the vertical axis type turbine accessory cooling seawater pump 5 is used. A cooling seawater pump 47 is provided.

As shown in FIG. 7C, on the lower floor of the room accommodating the turbine accessory cooling heat exchanger 3 and the like, near the circulating water pump 1, a horizontal axis type turbine accessory cooling seawater tap pump 47 is provided.
Is installed, and water is taken from the water intake pit 40 by the suction pipe 39 from the horizontal direction in consideration of the effective suction area and the depth of submersion.
With this arrangement, the upper floor is used as an equipment arrangement space 41, and the outdoor part above the floor is used as an overhaul space 42 for another cooling pump.

As described above, in the second embodiment, the horizontal axis-type turbine auxiliary machine is replaced with the vertical axis-type turbine auxiliary cooling seawater pump 5 that takes water from the vertical direction of the water intake pit 40 in the building. Since the cooling seawater pump 47 draws water from the water intake pit 40 to the suction pipe 39 from the horizontal direction, the water intake pit 40 in the building can be reduced, and the outdoor laydown space can be expanded and the equipment installation space 41 can be effectively used. .

Next, a third embodiment of the present invention will be described. FIG. 8 is an explanatory view showing a third embodiment of the present invention. FIG. 8 (a) is a plan view showing a ground portion of a cooling pump building, and FIG. 8 (b) is a side view showing a cooling pump building. It is. In the third embodiment, a building for accommodating a reactor auxiliary cooling system is installed adjacent to a building for accommodating a cooling system for a turbine system, and the cooling system for the turbine system is accommodated in the third embodiment. A common gantry crane or a common overhead crane for cooling pump inspection is installed across the building and the building that houses the reactor auxiliary equipment cooling equipment.

As shown in FIG. 8A, adjacent to the cooling pump building, the reactor auxiliary equipment cooling water system heat exchanger 24, the reactor auxiliary equipment cooling water pump 25, the reactor auxiliary equipment seawater pump 26, and the like The cooling pump building 43 of the furnace auxiliary equipment cooling equipment is arranged on the same row. And a circulating water pump 1 of a turbine system, a turbine auxiliary equipment cooling seawater pump 5, a nuclear reactor auxiliary equipment cooling seawater pump 2
The common gantry crane rail 44 on which the common gantry crane for checking the cooling pump 6 travels is installed. Also,
As shown in FIG. 8B, a shed 45 is provided and the shed 4
5 is provided with a common overhead crane 46.

In the third embodiment, since the cooling pump building of the reactor auxiliary equipment cooling equipment is installed on the same row adjacent to the cooling pump building, the cooling pump building can be made more compact. Two units can be shared by one common gantry crane for inspection or one common overhead crane 46 in the shed 45.

Next, a fourth embodiment of the present invention will be described. FIG. 9 is an explanatory view of a cooling pump building according to a fourth embodiment of the present invention. FIG. 9 (a) is a plan view showing the arrangement of the second basement floor in the cooling pump building, and FIG. It is a top view which shows arrangement | positioning of the first basement floor in a cooling pump building, and an intake channel.

In the fourth embodiment, a turbine accessory cooling seawater pump 5, a turbine accessory cooling system heat exchanger 3 and a turbine accessory cooling water pump 4
In addition to or in place of these, the reactor accessory cooling seawater pump 26, reactor accessory cooling water system heat exchanger 24, and reactor accessory cooling water pump 25, which are reactor accessory cooling facilities, are installed in the cooling pump building. It is something to do.

As shown in FIG. 9A, a turbine auxiliary cooling system heat exchanger 3 and a turbine auxiliary cooling water pump 4 of a turbine cooling system are arranged on the second basement floor.
As shown in (b), a reactor auxiliary equipment cooling seawater pump 26 is provided at the center between the two circulating water pumps 1 on the revetment 19 side.
And two units of the turbine auxiliary cooling seawater pump 5. Then, on the first floor, which is the same level as the circulating water pipe 2, the reactor auxiliary equipment cooling water system heat exchanger 24 and the reactor auxiliary equipment cooling water pump 25 of the reactor auxiliary equipment cooling equipment are arranged in the cooling pump building. Reference numeral 35 in FIG. 9B is a water intake passage for a reactor auxiliary equipment cooling seawater pump.

Further, the turbine auxiliary cooling system heat exchanger 3 and the turbine auxiliary cooling water pump 4 of the turbine auxiliary cooling system on the second basement floor in FIG. 9A can be constructed as separate buildings. In this case, it will be a one-level cooling pump building.

Next, a fifth embodiment of the present invention will be described. FIG. 10 is a plan view of the inside of a cooling pump building according to a fifth embodiment of the present invention. In the fifth embodiment, a header 27 common to two units is provided at the discharge part of the circulating water pump 1 of two units.

As shown in FIG. 10, a head 2 common to two units is provided at the discharge portions of four circulating water pumps 1 for two units.
7 is provided. Thus, at the time of one unit periodic inspection, any two of the four circulating water pumps 1 of the two units can be operated so as not to hinder the operation of the other units. Any circulating water pump 1 can be stopped. In addition, the circulating water pump intake passage 20
Maintenance can be made redundant.

Next, when the location of the nuclear power plant is near a freshwater river or lake, the cooling system of the turbine system and the condenser 29 is changed from seawater to freshwater as shown in FIG. The cooling water can be cooled in the cooling tower 28 as a closed loop.

In FIG. 11, the steam generated in the nuclear reactor 30 is guided to a high-pressure turbine 31 and a low-pressure turbine 32, and the turbine drives a generator 33 to generate power. The steam that has completed the work in the high-pressure turbine 31 and the low-pressure turbine 32 is condensed in the condenser 29 and supplied to the reactor 3 by the reactor water supply pump 34. The condenser 29 of such a turbine system is cooled by cooling water from the circulating water pump 1. The cooling water in this case is cooled in the cooling tower 28 using fresh water. The cooling system has a closed loop including the cooling tower 28. It goes without saying that the cooling pump building of the present invention can be used in such a cooling water system.

That is, when the location is near a freshwater river or lake, the condenser 29 and the cooling system of the turbine system are changed from seawater to freshwater, and the cooling water is used as a closed loop in the cooling tower 28. It is also possible to cool and remove the intake channels 20, 21.

As described above, since the cooling pump building of the present invention is a two-unit building, three units of the turbine auxiliary cooling system heat exchanger 3, the turbine auxiliary cooling water pump 4, and the turbine Although the auxiliary equipment cooling seawater pump 5 is provided, one of the three systems is a spare system, and therefore, as shown in FIG. Of the turbine accessory cooling system heat exchanger 3 and the turbine accessory cooling water pump 4, it is also possible to arrange such that one of the auxiliary systems is shared by two units.

As shown in FIG. 13, a turbine accessory cooling seawater pump 5 for feeding cooling seawater to the turbine accessory cooling system heat exchanger 3 is provided with a turbine accessory cooling system for taking in cooling seawater from the circulating water pipe 2. The seawater booster pump 18 can be changed or arranged.

Further, as shown in FIG. 14, the turbine auxiliary cooling system heat exchangers 3 can be three-dimensionally stacked and arranged in two upper and lower stages. FIG. 14A is a plan view showing the arrangement inside the cooling pump building in that case, and FIG.
(B) is a side view of the cooling pump building in that case.

Further, as shown in FIG. 15, in order to make the maintenance of each intake channel 20, 21 redundant, a common intake channel 37 between the screen equipment and the cooling pump is provided as a boundary between the two units. It is also possible to arrange an intake passage gate 36 so that the intake passage 20 for the circulating water pump and the intake passage 21 for the turbine auxiliary cooling seawater pump are separated from each other.

[0069]

As described above, according to the present invention, 2
When two or more units are designed and constructed at the same time, the cooling system for the turbine system and condenser for two units is housed in one floor of one building. The amount of material can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of the inside of a cooling pump building according to a first embodiment of the present invention.

FIG. 2 is a plan view of an upper part of a cooling pump building according to the first embodiment of the present invention.

FIG. 3 is a side view showing an arrangement inside the cooling pump building according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram of a water intake passage of a circulating water pump and a turbine auxiliary cooling seawater pump according to the first embodiment of the present invention.

FIG. 5 is a plan view showing an arrangement of an intake channel and a cooling pump building shared by two units according to the first embodiment of the present invention.

FIG. 6 is a plan view showing an arrangement in a cooling pump building and an intake passage when a screen cleaning pump is arranged in addition to the two-unit turbine auxiliary cooling seawater pump in the first embodiment of the present invention.

FIG. 7 is an explanatory view of a second embodiment of the present invention. FIG. 7 (a) is a plan view of the inside of a cooling pump building, and FIG. 7 (b).
FIG. 7 is a plan view showing an arrangement of a water intake pit portion in the cooling pump building, and FIG. 7C is a side view showing an arrangement in the cooling pump building.

FIG. 8 is an explanatory view showing a third embodiment of the present invention, wherein FIG. 8 (a) is a plan view showing a ground portion of a cooling pump building, and FIG. 8 (b) is a side view showing a cooling pump building; FIG.

FIG. 9 is an explanatory view of a cooling pump building according to a fourth embodiment of the present invention. FIG. 9 (a) is a plan view showing an arrangement on the second basement floor in the cooling pump building, and FIG. 9 (b). FIG. 2 is a plan view showing an arrangement of a first basement floor and an intake channel in a cooling pump building.

FIG. 10 is a plan view of the inside of a cooling pump building according to a fifth embodiment of the present invention.

FIG. 11 is a system configuration diagram showing a turbine cooling system when the turbine cooling system of the present invention is a closed loop.

FIG. 12 is a plan view showing an arrangement inside a cooling pump building when a spare system is shared among the cooling systems of the turbine system of the present invention.

FIG. 13 is a plan view showing an arrangement inside a cooling pump building when a turbine accessory cooling seawater booster pump is employed as a pump for sending seawater for cooling to the turbine accessory cooling system heat exchanger of the present invention.

FIG. 14 is an explanatory view of a case where the turbine auxiliary cooling system heat exchangers of the present invention are three-dimensionally stacked in upper and lower two stages.
(A) is a plan view showing the arrangement inside the cooling pump building, FIG.
(B) is a side view of the inside of a cooling pump building.

FIG. 15 is a plan view of a cooling pump building in which a water intake gate that separates a water intake passage for a circulating water pump and a water intake passage for a turbine auxiliary cooling seawater pump is disposed in the common water intake passage of the present invention.

16 (a) is a plan view of an upper floor, FIG. 16 (b) is a plan view of a lower floor, and FIG. (C)
Is a side view of the cooling pump building.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Circulating water pump 2 Circulating water piping 3 Turbine auxiliary equipment cooling system heat exchanger 4 Turbine auxiliary equipment cooling water pump 5 Turbine auxiliary equipment cooling seawater pump 6 Electric equipment 7 Air conditioner 8 Sump 9 Cooling pipe tube withdrawal space 10 Equipment loading / unloading Hatch 11 Circulating water piping valve 12 Access frame 13 Access stair 14 Circulating water piping valve carry-in / out hatch 15 Gantry crane 16 Gantry crane rail 17 Electrolytic iron ion supply device 18 Header 19 Revetment 20 Circulating water pump intake channel 21 Turbine Inlet channel for auxiliary equipment cooling seawater pump 22 Circulating water pump bell mouth 23 Screen cleaning pump 24 Reactor auxiliary equipment cooling water system heat exchanger 25 Reactor auxiliary equipment cooling water pump 26 Reactor auxiliary equipment seawater pump 27 Header 28 Cooling tower 29 Water device 30 Reactor 31 High pressure turbine 32 Low pressure turbine N 33 Generator 34 Reactor feedwater pump 35 Intake channel for reactor auxiliary equipment cooling seawater pump 36 Intake channel gate 37 Common intake channel 38 Side flow 39 Suction pipe 40 Intake pit 41 Equipment installation space 42 Disassembly and inspection space 43 Reactor Cooling pump building for auxiliary equipment cooling equipment 44 Common gantry crane rail 45 Shed 46 Common overhead crane 47 Horizontal axis turbine auxiliary equipment cooling seawater pump

Claims (13)

[Claims] 1. A nuclear power plant cooling pump building for housing nuclear power plant cooling equipment, wherein two units of turbine cooling equipment are installed on one floor in one building. Power plant cooling pump building. 2. The cooling system of the turbine system is a circulating water pump, a turbine auxiliary cooling seawater pump, a turbine auxiliary cooling system heat exchanger, a turbine auxiliary cooling water pump, and an electric air conditioning system related thereto. The cooling pump building of a nuclear power plant according to claim 1, wherein: 3. The two units of circulating water pumps are installed in parallel, and a turbine auxiliary cooling seawater pump is arranged between the circulating water pumps of the respective units. The cooling pump building of a nuclear power plant according to claim 2, wherein a screen facility and an intake channel are arranged. 4. The cooling pump building of a nuclear power plant according to claim 3, wherein the water intake passage of the two units is shared. 5. The turbine according to claim 1, wherein a cooling tube withdrawing space required for maintenance of the cooling tube in the turbine auxiliary cooling system heat exchanger is shared with a cooling tube withdrawing space of another unit. 3. An auxiliary cooling system heat exchanger is provided.
Nuclear power plant cooling pump building as described in. 6. The two units share a loading / unloading hatch for loading / unloading the cooling system of the turbine system, a building entrance for accessing the building, a stair to a maintenance stand, and a sump for collecting drainage from the building. The cooling pump building of a nuclear power plant according to claim 1, wherein the cooling pump building is provided so as to perform the following. 7. The cooling pump building for a nuclear power plant according to claim 3, wherein a space for installing a sump for collecting drainage in the building is provided behind the intake channel of the turbine auxiliary cooling seawater pump. . 8. A back surface of an intake passage of the turbine auxiliary cooling seawater pump, together with the turbine auxiliary cooling seawater pump,
The cooling pump building of a nuclear power plant according to claim 3, wherein pumps for screen washing having a small water intake are collectively arranged. 9. The seawater pump according to claim 3, wherein a horizontal shaft type is installed as said turbine auxiliary cooling seawater pump, and seawater is taken in from said intake channel by a horizontal suction pipe from an intake bit. Cooling pump building of a nuclear power plant. 10. The nuclear power plant according to claim 1, wherein a building for storing the reactor auxiliary cooling system is installed adjacent to the building for storing the turbine system cooling system. Cooling pump building. 11. A common gantry crane or a common overhead crane for inspecting a cooling pump is provided across a building accommodating the cooling system for the turbine system and a building accommodating the cooling system for the reactor auxiliary equipment. A cooling pump building for a nuclear power plant according to claim 10. 12. In addition to, or instead of, the turbine accessory cooling seawater pump, the turbine accessory cooling system heat exchanger, and the turbine accessory cooling water pump that are the turbine system cooling equipment. 2. The cooling system for a nuclear power plant according to claim 1, wherein a reactor auxiliary equipment cooling seawater pump, a reactor auxiliary equipment cooling water system heat exchanger, and a reactor auxiliary equipment cooling water pump are installed. Pump building. 13. The cooling pump building of a nuclear power plant according to claim 3, wherein a header common to the two units is provided at a discharge part of the circulating water pumps of the two units.