CN217624060U - Sea water valve box of ice region navigation nuclear power ship - Google Patents

Sea water valve box of ice region navigation nuclear power ship Download PDF

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Publication number
CN217624060U
CN217624060U CN202220758861.6U CN202220758861U CN217624060U CN 217624060 U CN217624060 U CN 217624060U CN 202220758861 U CN202220758861 U CN 202220758861U CN 217624060 U CN217624060 U CN 217624060U
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China
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ice
tank
floating
water
refrigerator
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CN202220758861.6U
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Chinese (zh)
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胡安康
杜晓程
陈励志
田明琦
林一
孙建
丁海
张筠如
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China Nuclear Offshore Nuclear Power Development Co ltd
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China Nuclear Offshore Nuclear Power Development Co ltd
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Abstract

The utility model relates to a nuclear power ship field especially relates to an ice field navigation nuclear power ship sea water valve box. The seawater valve box comprises: the water inlet tank, the middle layer and the ice-floating tank are sequentially arranged from the bottom of the ship to the deck direction, the middle layer comprises a transition water tank and a clean water tank which are arranged side by side, the transition water tank is close to the outer plate, the clean water tank is far away from the outer plate, and one end of the clean water tank is connected with a cooling water inlet pipe; the bottom of the water inlet tank is an outer plate water inlet, the top of the water inlet tank is communicated with the bottom of the transition water tank, and the bottom of the floating ice tank is upwards provided with an ice separating plate which separates an inlet and an outlet of the floating ice tank; the inlet of the floating refrigerator is communicated with the top of the transition water tank, and the outlet of the floating refrigerator is communicated with the top of the purified water tank; an isolated empty chamber is arranged between the floating refrigerator and the outer plate; the water inlet tank is internally provided with a steam blowing pipe aligned with the water inlet of the outer plate. The utility model discloses when guaranteeing that boats and ships have sufficient cooling sea water to supply with, still can effectively prevent trash ice and foreign matter and block up the suction inlet to avoid trash ice and foreign matter to get into cooling circuit.

Description

Ice zone navigation nuclear power ship seawater valve box
Technical Field
The utility model relates to a nuclear power ship field especially relates to an ice district navigation nuclear power ship sea water valve case.
Background
Compared with the conventional water area sailing ship, the ship needs to have certain anti-freezing and anti-icing capabilities when sailing in the ice area, and has a plurality of special requirements on the design of a hull structure, a power system, a piping system and other supporting equipment.
Meanwhile, when the secondary cooling system of the nuclear power ship sucks seawater by adopting seawater for cooling, broken ice and foreign matters in the water can cause adverse effects on pipelines; if the crushed ice and foreign matters block the cooling water suction inlet, the reactor can be stopped urgently, and the normal operation of the ship is influenced.
Therefore, it is particularly necessary to design a seawater valve box structure which can simultaneously prevent crushed ice and foreign matters from entering the pipeline and being blocked.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the seawater valve box for the ice region sailing nuclear power ship can ensure that the ship can still effectively prevent crushed ice and foreign matters from blocking a suction port and prevent the crushed ice and the foreign matters from entering a cooling loop while ensuring sufficient cooling seawater supply when the ship sails in dense sea ice or marine organism water areas.
The utility model provides an ice formation navigation nuclear power ship seawater valve case, include: the water inlet tank, the middle layer and the ice-floating tank are sequentially arranged from the bottom of the ship to the deck direction, the middle layer comprises a transition water tank and a clean water tank which are arranged side by side, the transition water tank is close to the outer plate, the clean water tank is far away from the outer plate, and one end of the clean water tank is connected with the cooling water inlet pipe;
the bottom of the water inlet tank is an outer plate water inlet, the top of the water inlet tank is communicated with the bottom of the transition water tank,
the bottom of the floating refrigerator is upwards provided with an ice separation plate which separates an inlet from an outlet of the floating refrigerator;
the inlet of the floating refrigerator is communicated with the top of the transition water tank, and the outlet of the floating refrigerator is communicated with the top of the clean water tank;
an isolated empty cabin is arranged between the floating refrigerator and the outer plate;
and a steam blowing pipe aligned with the water inlet of the outer plate is arranged in the water inlet tank.
Preferably, the water inlet of the outer plate adopts a mode that a grating hole is directly formed in the outer plate of the ship body.
Preferably, a plurality of steam blowing and degassing holes are formed in the lower end of the steam blowing pipe and correspond to the water inlets of the outer plate one by one.
Preferably, the top surface of the floating refrigerator is provided with an access manhole cover and a vent hole.
Preferably, the bottom of the floating refrigerator is provided with two outlets, the first outlet is communicated with the top of the water purifying tank through a detachable grid cover, and the second outlet is communicated with the top of the water purifying tank through a grid manhole cover.
Preferably, ladder ways are also arranged in the floating refrigerator and the purified water tank; the stairway is adjacent to the grille manhole cover.
Preferably, the surfaces of the water inlet tank, the floating refrigerator, the transition water tank and the water purifying tank are all provided with anti-corrosion core blocks.
Preferably, 1-4 anti-corrosion core blocks are respectively arranged on each box body.
Preferably, one side of the floating refrigerator, which is far away from the outer plate, is also connected with a steam ice melting pipe and/or a cooling water reinjection pipe.
Preferably, the height of the ice partition plate is not less than one third of the height of the ice floator.
Compared with the prior art, the utility model discloses an ice district navigation nuclear power ship sea water valve case has following beneficial effect:
1) Compared with the conventional seawater valve box, the steam blowing device can effectively avoid the condition that cooling water cannot enter due to the blockage of the water inlet;
2) Compared with the conventional seawater valve box, the multi-box body and multi-channel blocking design of the seawater valve box can effectively prevent sea ice, marine organisms or other foreign matters from entering a ship body cooling loop;
3) Compared with the conventional seawater valve box, the utility model is provided with the ladder way and the grating manhole cover, so that the maintainers can enter the seawater valve box to clear faults or blockages in emergency;
4) Furthermore, the utility model discloses install the zinc billet additional at each box, can effectively avoid corroding, improve device life.
Drawings
Fig. 1 is a schematic structural view illustrating a seawater valve box of an ice-water sailing nuclear power ship according to an embodiment;
FIG. 2 is a schematic view of the structure of the water inlet of the outer plate;
FIG. 3 is a schematic structural view and a seawater flow diagram of a seawater valve box of an ice-sailing nuclear powered ship according to another embodiment;
FIG. 4 is a schematic structural view showing a seawater valve box of an ice-sailing nuclear powered vessel according to yet another embodiment;
in the figure, the position of the upper end of the main shaft,
1-water inlet tank, 2-transition water tank, 3-floating refrigerator, 4-water purifying tank, 5-isolation empty chamber, 6-ice isolation plate, 7-outer plate water inlet, 10-seawater waterline, 11-outer plate, 21-cooling water inlet pipe, 22-cooling water return pipe, 23-steam ice melting pipe, 24-steam blowing pipe, 25-steam blowing air hole, 26-,27-,28-, 31-maintenance manhole cover, 32-air vent hole, 33-detachable grid cover, 34-grid manhole cover, 35-ladder way and 36-anti-corrosion core block.
Detailed Description
For further understanding of the present invention, embodiments of the present invention are described below with reference to examples, but it should be understood that these descriptions are only intended to further illustrate features and advantages of the present invention, and are not intended to limit the present invention.
The embodiment of the utility model discloses an ice field navigation nuclear power ship seawater valve case, as shown in figure 1, include: the water inlet tank 1, the middle layer and the floating ice tank 3 are sequentially arranged from the bottom of the ship to the deck direction, the middle layer comprises a transition water tank 2 and a clean water tank 4 which are arranged side by side, the transition water tank 2 is close to the outer plate, the clean water tank 4 is far away from the outer plate, and one end of the clean water tank 4 is connected with a cooling water inlet pipe 21;
the bottom of the water inlet tank 1 is an outer plate water inlet 7, the top of the water inlet tank is communicated with the bottom of the transition water tank 2,
the bottom of the floating refrigerator 3 is upwards provided with an ice separating plate 6 which separates an inlet and an outlet of the floating refrigerator 4;
the inlet of the floating refrigerator 3 is communicated with the top of the transition water tank 2, and the outlet of the floating refrigerator 3 is communicated with the top of the purified water tank 4;
an isolated empty chamber 5 is arranged between the floating refrigerator 3 and the outer plate 11;
a steam blowing pipe 24 aligned with the water inlet 7 of the outer plate is arranged in the water inlet tank 1.
As shown in fig. 2, the outer plate water inlet 7 adopts a mode that a grid hole is directly formed on an outer plate of a ship body, and is used for preventing ice blocks and marine organisms from entering the inside of the seawater valve box;
as shown in fig. 3, a plurality of steam blowing holes 25 are formed at the lower end of the steam blowing pipe 24, and correspond to the outer plate water inlets one by one. If the condition that the ice blockage or the marine life and other foreign matters cover the whole water inlet at the water inlet to cause the insufficient supply of cooling water occurs, high-temperature and high-pressure steam is blown out from the steam blowing air holes 25 through the steam blowing pipe 24 to melt the ice blockage at the water inlet of the outer plate or blow off the marine life or the foreign matters covering the water inlet 01 of the outer plate.
After a small amount of crushed ice and marine organisms or foreign matters enter the water inlet tank 1, the transition water tank 2 mainly functions to change the turbulence in the water inlet tank 1 so that the crushed ice and the marine organisms or the foreign matters enter the floating refrigerator 3 vertically and upwards as much as possible.
The main function of the floating refrigerator 3 is to make the crushed ice float on the upper part of the refrigerator body, and the ice-free seawater continues to flow downwards. An ice separating plate 6 is arranged at the bottom of the floating refrigerator 3 upwards to separate the inlet and the outlet of the floating refrigerator 4. The ice partition 6 serves to extend the upward movement distance of the crushed ice and to retard and block the movement of the crushed ice and marine life or foreign matter toward the inside of the hull as much as possible. The height of the ice separating plate 6 is not less than one third of the height of the floating refrigerator.
And a steam ice melting pipe 23 and/or a cooling water reinjection pipe 22 are/is further connected to one side of the floating refrigerator 3, which is far away from the outer plate. The steam ice melting pipe 23 can spray high-temperature steam to melt floating ice; the cooling water return pipe 22 returns a small amount of relatively high-temperature water circulating in the ship cooling circuit to the floating ice box, which is more favorable for deicing.
The bottom of the floating refrigerator 3 is provided with two outlets, the first outlet is communicated with the top of the water purifying tank 4 through a detachable grid cover 33, and the second outlet is communicated with the top of the water purifying tank 4 through a grid manhole cover 34.
The grill manhole cover 34 and the detachable grill cover 33 serve as a final seawater filtering device to block crushed ice and marine life or foreign materials which may reach there with a very small probability, thereby ensuring the cleanliness of seawater introduced into the clean water tank 4.
An access manhole cover 31 and a vent hole 32 are arranged on the top surface of the floating refrigerator 3. The air vents 32 are used for ensuring that the internal air pressure in the seawater valve box is the same as the external environment pressure, and the gas exhausted from the steam ice melting pipe 23 can be finally discharged, so that the situation of cabin explosion is avoided.
As shown in fig. 4, ladder ways 35 are further arranged in the floating refrigerator 3 and the fresh water tank 4; the stairways 35 are adjacent to the grille manhole cover 34.
When an emergency occurs during routine inspection or operation of the vessel requiring personnel to enter the tank for inspection, the inspection personnel (wearing appropriate equipment such as diving suits, etc.) can open the manhole cover 31, access the sea chest through the stairway 35, troubleshoot or clear the broken ice or foreign matter attached to the removable grill cover 33 and the grill manhole cover 34.
The surfaces of the water inlet tank 1, the floating ice tank 3, the transition water tank 2 and the purified water tank 4 are all provided with anti-corrosion core blocks 36. Preferably, 1-4 corrosion resistant pellets 36 are provided on each box, respectively.
An isolated empty chamber 5 is arranged between the floating refrigerator 3 and the outer plate 11; the main function of the isolation empty chamber 5 is to form a thermal insulation layer between seawater and atmospheric environment and the floating ice box, so as to prevent the low temperature from being directly transferred into the floating ice box through the hull outer plate 11, and the ice melting difficulty is caused.
In actual use, the top surface of the ice floator 3 is substantially flush with the seawater line 10, as shown in fig. 3. The seawater flows in the running direction of the arrow line in the figure. After entering the device, the seawater with ice flows through the water inlet tank 1, the floating ice tank 3, the transition water tank 2 and the water purification tank 4 in sequence, so that the ice is removed, and finally the seawater enters the cooling water inlet pipe 21.
The above description of the embodiments is only intended to help understand the method of the present invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A sea water valve box for ice region sailing nuclear power ship is characterized by comprising: the water inlet tank, the middle layer and the ice-floating tank are sequentially arranged from the bottom of the ship to the deck direction, the middle layer comprises a transition water tank and a clean water tank which are arranged side by side, the transition water tank is close to the outer plate, the clean water tank is far away from the outer plate, and one end of the clean water tank is connected with a cooling water inlet pipe;
the bottom of the water inlet tank is an outer plate water inlet, the top of the water inlet tank is communicated with the bottom of the transition water tank,
the bottom of the floating refrigerator is upwards provided with an ice separation plate which separates an inlet from an outlet of the floating refrigerator;
the inlet of the floating refrigerator is communicated with the top of the transition water tank, and the outlet of the floating refrigerator is communicated with the top of the clean water tank;
an isolated empty cabin is arranged between the floating refrigerator and the outer plate;
and a steam blowing pipe aligned with the water inlet of the outer plate is arranged in the water inlet tank.
2. The ice-region sailing nuclear power vessel seawater valve box of claim 1, wherein the water inlet of the outer plate adopts a mode that the grating holes are directly opened on the outer plate of the hull.
3. The ice bank sailing nuclear sea water valve box according to claim 2, characterized in that a plurality of steam blow-off gas holes are arranged at the lower end of the steam blow-off pipe and correspond to the water inlets of the outer plate one by one.
4. The ice bank sailing nuclear power vessel seawater valve box according to claim 1, wherein a manhole cover and a vent hole are provided on a top surface of the floating refrigerator.
5. The ice-region sailing nuclear-powered ship seawater valve box of claim 1, wherein the bottom of the floating refrigerator is provided with two outlets, the first outlet is communicated with the top of the water purifying box through a detachable grid cover, and the second outlet is communicated with the top of the water purifying box through a grid manhole cover.
6. The ice region sailing nuclear power vessel seawater valve box of claim 5, wherein a ladder way is further arranged in the floating refrigerator and the clean water tank; the stairway is adjacent to the grille manhole cover.
7. The ice bank sailing nuclear power ship seawater valve box according to claim 1, characterized in that the surfaces of the water inlet tank, the floating refrigerator, the transition water tank and the clear water tank are all provided with anti-corrosion pellets.
8. The valve box for sea water of sailing nuclear powered ships in ice areas according to claim 6, characterized in that each box body is respectively provided with 1-4 anti-corrosion pellets.
9. The ice-bank sailing nuclear power ship seawater valve box according to claim 1, characterized in that one side of the floating refrigerator, which is far away from the outer plate, is also connected with a steam de-icing pipe and/or a cooling water reinjection pipe.
10. The ice bank sailing nuclear power vessel seawater valve box of claim 1, wherein the height of the ice-separating plate is not less than one third of the height of the ice floator.
CN202220758861.6U 2022-04-01 2022-04-01 Sea water valve box of ice region navigation nuclear power ship Active CN217624060U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220758861.6U CN217624060U (en) 2022-04-01 2022-04-01 Sea water valve box of ice region navigation nuclear power ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220758861.6U CN217624060U (en) 2022-04-01 2022-04-01 Sea water valve box of ice region navigation nuclear power ship

Publications (1)

Publication Number Publication Date
CN217624060U true CN217624060U (en) 2022-10-21

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ID=83646025

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220758861.6U Active CN217624060U (en) 2022-04-01 2022-04-01 Sea water valve box of ice region navigation nuclear power ship

Country Status (1)

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CN (1) CN217624060U (en)

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