CN211571843U

CN211571843U - Water taking device arranged on bottom-sitting type maritime work platform

Info

Publication number: CN211571843U
Application number: CN201922307732.6U
Authority: CN
Inventors: 胡坚
Original assignee: Shanghai Merchant Ship Design and Research Institute of CSSC No 604 Research Institute
Current assignee: Shanghai Merchant Ship Design and Research Institute of CSSC No 604 Research Institute
Priority date: 2019-06-05
Filing date: 2019-12-19
Publication date: 2020-09-25
Anticipated expiration: 2029-12-19
Also published as: CN110952618A

Abstract

The utility model provides a water intake device arranged on a bottom-sitting type maritime work platform, wherein the bottom-sitting type maritime work platform is provided with a water ballast tank and a seawater valve box, the seawater valve box is connected with seawater, the water ballast tank is arranged on the bottom-sitting type maritime work platform, the water intake device comprises a water sump, the side surface of the bottom of the water sump is provided with a first water inlet and a second water inlet, the first water inlet and the second water inlet are both provided with control valves, the first water inlet is connected with the seawater valve box, the second water inlet is connected with the water ballast tank, and the side surface of the top of the water sump is provided with an overflow port connected with the water ballast tank; a submersible pump is arranged in the water sump, the water inlet of the submersible pump is arranged in the water sump, and the water outlet end of the submersible pump is connected with a water pipe arranged at the top of the water sump. The utility model discloses can guarantee that the immersible pump can receive mechanical protection, guarantee simultaneously that the marine platform of bottom formula of sitting can inhale relatively clean water source under bottom operation or shallow water operating mode.

Description

Water taking device arranged on bottom-sitting type maritime work platform

Technical Field

The utility model relates to a boats and ships field, concretely relates to arrange water intake device on sitting end formula maritime work platform.

Background

The conventional marine platform is used for a submersible pump for lifting seawater and is arranged outboard through a leg or a side guide rail, and the submersible pump can move up and down according to the actual draught condition of the platform. For the bottom-sitting type marine platform, except for the upper carried objects, the bottom-sitting type marine platform consists of an upper shell, an upright post and a lower shell, and the periphery of the platform is a crane operation area, so that the expensive submersible pump is easily damaged by a crane object or other ships (including other offshore structures) leaning on the side when the platform is used for lifting operation or piling operation. And the submersible platform itself does not have as small a profile depth as the jack-up marine platform so that submersible pumps are deployed with the use of the telescoping truss legs by opening a moon pool within the hull. The problem is that how to obtain the clean water source needed by the working of the platform is a big problem in the middle of the hull of the bottom-sitting type marine platform and the moon pool.

At present, most of marine platforms comprise self-elevating type, semi-submersible type, bottom-sitting type, water surface type and the like, and seawater lifting pumps of the marine platforms are all externally hung. No matter the lifting pump is arranged on the pile leg truss or the moon pool truss, as long as the lifting pump extends to the lower part of the upper shell, the platform can be contacted with seawater no matter what floating state the platform is.

However, for some bottom-sitting type marine platforms, in which the lower surface of the upper shell of the platform except the upright posts is covered by the lower shell, the installation mode of the traditional seawater lift pump cannot meet the normal water taking requirement of the platform. Especially, when the platform is in a shallow water working condition, the submersible pump (i.e. a seawater lift pump) can not suck water or can suck a large amount of water containing silt or impurities, so that the submersible pump is damaged early.

Two different submersible pump arrangements can be used if according to the prior art. One is a side-mounted lift arrangement suspended from the platform, which is extremely vulnerable to being knocked by hoisted objects or other vessels (including other structures at sea) leaning on the side because of the arrangement on the side of the platform. The other is to arrange a moon pool in the middle of the platform, and one arrangement mode can influence the structural strength of the whole platform or ensure the structural strength to increase the structural weight; in addition, a moon pool is arranged in the middle of the lower shell, when the platform is in a shallow water operation working condition, the submersible pump (namely, a seawater lifting pump) can not suck water because the upper surface of the lower shell is not submerged by the water surface but the bottom of the ship is seated, or can suck a large amount of water containing silt or sundries because the bottom of the ship is close to the seabed, so that the submersible pump is damaged too early.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be in various float attitude or under the operation operating mode at the platform, clean water source is inhaled to the sea water elevator pump homoenergetic to ensure the normal operation needs of platform. The specific scheme is as follows:

a water taking device arranged on a bottom sitting type maritime work platform is provided with a water ballast tank and a seawater valve box, wherein the seawater valve box is connected with seawater, the water ballast tank is arranged on the bottom sitting type maritime work platform, the water taking device comprises a water cabin, the side surface of the bottom of the water cabin is provided with a first water inlet and a second water inlet, the first water inlet and the second water inlet are both provided with control valves, the first water inlet is connected with the seawater valve box, the second water inlet is connected with the water ballast tank, and the side surface of the top of the water cabin is provided with an overflow port connected with the water ballast tank;

the water sump is internally provided with a submersible pump, the water inlet of the submersible pump is arranged in the water sump, and the water outlet end of the submersible pump is connected with a water pipe arranged at the top of the water sump.

Further, the submersible pump is provided with a check valve.

Furthermore, a reinforced toggle plate is arranged at the joint of the top end of the submersible pump and the top wall of the water sump.

Furthermore, the outer walls of the water bin, which are positioned at the first water inlet and the second water inlet, are provided with convex pipelines, and a reinforcing toggle plate is arranged between the pipelines and the outer wall of the water bin.

Further, the water sump top plate is provided with an air pipe seat plate.

Furthermore, the submersible pump is vertically arranged in the water sump.

The utility model discloses can guarantee that the immersible pump can receive mechanical protection, guarantee simultaneously that the marine platform of bottom formula of sitting can inhale relatively clean water source under bottom operation or shallow water operating mode.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1-2 are a top view and a side view of a water intake device disposed on a submersible maritime work platform according to the present invention;

fig. 3 is a top view (starboard symmetry) of a lower shell of a maritime work platform carrying the water intake device provided by the utility model;

figure 4 is a side view of the lower shell of the maritime work platform for carrying the water intake device provided by the utility model.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description so as to explain the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.

As shown in fig. 1-4, a water intake device disposed on a bottom-sitting type marine platform, the bottom-sitting type marine platform is provided with a water ballast tank 100 and a seawater valve box 200, the seawater valve box 200 is connected with seawater, the water ballast tank 100 is disposed on the bottom-sitting type marine platform, the water intake device comprises a water sump 1, the bottom side of the water sump 1 is provided with a first water inlet 2 and a second water inlet 9, the first water inlet 2 and the second water inlet 9 are both provided with control valves 20 and 90, the first water inlet 2 is connected with the seawater valve box 200, the second water inlet 9 is connected with the water ballast tank 100, and the top side of the water sump 1 is provided with an overflow port 5 connected with the water ballast tank 100;

a submersible pump 3 is arranged in the water sump 1, the water inlet of the submersible pump 3 is arranged in the water sump 1, and the water outlet end of the submersible pump 3 is connected with a water pipe 8 arranged at the top of the water sump 1.

In an alternative embodiment, the submersible pump 3 is provided with a check valve 4.

In an alternative embodiment, a reinforced toggle plate 6 is arranged at the joint of the top end of the submersible pump 3 and the top wall of the water sump 1. Furthermore, the outer walls of the water bin 1, which are positioned at the first water inlet 2 and the second water inlet 9, are provided with convex pipelines, and a reinforcing toggle plate 6 is also arranged between the pipelines and the outer wall of the water bin 1. Wherein, the water pipe 8 is welded on the watertight manhole cover 7 on the top plate of the water sump 1 and is connected with the water outlet pipe of the submersible pump 3.

In an alternative embodiment, the top plate of the water sump 1 is provided with an air duct seat plate 10.

As shown in fig. 4, when the platform is in a floating state, the water quality in the peripheral area of the platform is relatively clean, and at this time, the control valve 20 of the first water inlet 2 can be opened through the valve remote control system, so that the submersible pump chamber (i.e., the water sump) is communicated with the wayside seawater valve box 200, and the submersible pump 3 can directly take water from the wayside. When the platform is in a seated position or is operated in a shallow sea area with poor water quality, if water is still taken from the seawater valve box 200, the absorbed water is doped with more impurities such as silt and the like, and is not suitable for being conveyed to a ship body for use. At this point, we close the control valve 20 and open the control valve 90 of the second water inlet 9 to communicate between the submersible pump tank and the ballast tank 100, so as to let the submersible pump 3 take water directly from the ballast tank 100. Excess seawater from the platform seawater system and return water from the cooling system may then be returned to the ballast tank 100 through overflow port 5. Since the ballast tank 100 can have more than 2000 cubes of ballast water with the side of the board or other ballast tanks around it, there is no need to worry about heat dissipation. As shown in the figure, there are 4 ballast tanks 100 around the water sump 1, which can meet the water supply and heat dissipation requirements. A prerequisite, of course, is that the ballast water tanks 100 from which the water tanks are to be taken be filled with clean ballast water in advance or substantially during the submergence of the platform.

The submersible pump can be vertically or horizontally arranged in the pump cabin, and the vertical arrangement is generally suggested in consideration of the fact that the horizontal arrangement is easy to suck bottom silt.

The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all the modifications and variations of the embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.

Claims

1. A water intake device arranged on a bottom-sitting type maritime work platform is provided with a water ballast tank and a seawater valve box, wherein the seawater valve box is connected with seawater, and the water ballast tank is arranged on the bottom-sitting type maritime work platform;

2. The water intake apparatus disposed on a submersible marine platform of claim 1, wherein the submersible pump is configured with a check valve.

3. The water intake apparatus arranged on a submersible marine platform according to claim 1, wherein a reinforcing toggle plate is provided at a junction of the top end of the submersible pump and the top wall of the sump.

4. The water intake apparatus arranged on the submersible marine platform according to claim 1, wherein the water sump is provided with a protruding pipe at the outer wall of the first and second water inlets, and a reinforcing toggle plate is provided between the pipe and the outer wall of the water sump.

5. The water intake apparatus disposed on the submersible marine platform as claimed in claim 1, wherein the top plate of the sump is provided with an air pipe seat plate.

6. The water intake apparatus arranged on the submersible marine platform according to claim 1, wherein the submersible pump is vertically installed in the sump.