CN111520528A

CN111520528A - Liquid level control device for water storage tank of ship

Info

Publication number: CN111520528A
Application number: CN202010415171.6A
Authority: CN
Inventors: 黄崇海; 肖颀; 李献领; 戴春辉; 苟金澜; 陶模; 李勇; 马灿; 陈凯; 王俊荣; 李少丹; 柯汉兵; 魏志国; 庞杰; 李邦明
Original assignee: Wuhan No 2 Ship Design Institute No 719 Research Institute of China Shipbuilding Industry Corp
Current assignee: Wuhan No 2 Ship Design Institute No 719 Research Institute of China Shipbuilding Industry Corp
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-08-11

Abstract

The invention discloses a liquid level control device of a ship water storage tank, which comprises a water storage tank, a second guide plate, a first guide plate, a swing adjusting structure and a floating ball limiting structure, wherein the second guide plate is arranged on the water storage tank; the floating ball limiting structure divides the water storage tank into an upper water storage tank and a lower water storage tank; the second guide plate is connected with the first end of the connecting rod, the second end of the connecting rod is connected with the heavy ball, and the second guide plate and the connecting rod are arranged at an included angle, so that the second guide plate is connected to the first guide plate or arranged on one side of the first guide plate at intervals through the swing angle of the heavy ball. According to the liquid level control device for the water storage tank of the ship, when the ship swings and inclines, the floating ball limiting structure blocks the small hole on the inclined side under the combined action of buoyancy and additional lift force, so that liquid is prevented from flowing out of the small hole on the inclined side of the water storage tank. Meanwhile, the swing adjusting structure can guide cooling water to flow into a non-inclined side through gravity action control, and the problem that the filling height of the centrifugal pump is reduced due to the fact that ship swing is restrained is solved.

Description

Liquid level control device for water storage tank of ship

Technical Field

The invention relates to the field of ship fluid conveying, in particular to a liquid level control device for a ship water storage tank.

Background

On civil ships using a steam turbine power device as driving force, a cooler is main equipment for cooling steam on the ships, the steam expands in a steam turbine to do work and then is discharged into the cooler, the steam is cooled by outboard water and condensed into water, the condensed water flows into a water storage tank below the cooler, and the water in the water storage tank is pumped by a centrifugal pump and is conveyed to a boiler to be heated to form steam, so that a closed cycle is formed. Because the space of the ship is limited and the equipment is compactly arranged, the filling height of the centrifugal pump is not too large, and the liquid level of the water storage tank is basically kept constant under the condition of normal and stable navigation, so that the filling height required by the normal operation of the centrifugal pump can be met. However, when the ship sails, the phenomenon of swinging and the like often occurs under the influence of ocean conditions, so that the liquid level in the water storage tank also periodically shakes. The sloshing of the liquid level can reduce the effective filling height of the centrifugal pump, and even can cause the cavitation problem of the centrifugal pump when the effective filling height is serious. In order to prevent cavitation of the centrifugal pump caused by the liquid level of the water storage tank shaking under the ship shaking condition, a method for inhibiting the liquid level of the water storage tank from shaking under the shaking condition needs to be adopted.

The traditional method for controlling the liquid level mostly adopts a floating ball to control a valve switch to replenish liquid to a water storage tank, the floating ball floats on the surface of the liquid level, when the liquid level of the water storage tank is lower than a set value, the floating ball descends and drives a switch connected with the floating ball to open a water replenishing valve for replenishing water, when the liquid level rises to the set value again, the floating ball floats upwards along with the liquid level to disconnect the valve switch, and the water replenishing is finished. The liquid level control method has the advantages that the valve switch is opened and closed frequently, the valve switch is easy to damage, and the liquid level control method is not suitable for liquid level control of the water storage tank of the ship cooler. The water replenishing valve is controlled to be opened and closed through the water level indicated by the water level meter, and under the condition that the ship swings, the water level indicated by the water level meter also fluctuates periodically, so that the water replenishing valve is also frequently triggered to be opened, and the problem similar to that of a floating ball control method is caused.

Disclosure of Invention

In view of the technical defects and application requirements, the embodiment of the invention provides a liquid level control device for a water storage tank of a ship, which is used for reducing the reduction value of the filling height of a centrifugal pump caused by the swing of the ship, so that the filling height of the centrifugal pump is not reduced too much, and the cavitation of the centrifugal pump is effectively avoided.

In order to solve the above problems, the present invention provides a liquid level control device for a water storage tank of a ship, comprising: the water storage tank, the second guide plate, the first guide plate, the swing adjusting structure and the floating ball limiting structure;

the floating ball limiting structure is arranged in the water storage tank and divides the water storage tank into an upper water storage tank and a lower water storage tank; the first guide plate is arranged in the upper water storage tank; the swing adjusting structure includes: the second guide plate, the connecting rod and the heavy ball; the second guide plate is located go up the water storage tank, the second guide plate with the first end of connecting rod is connected, the second end of connecting rod with heavy ball is connected, the second guide plate with the connecting rod is the contained angle setting, so that the second guide plate passes through the swing angle of heavy ball is connected on the first guide plate or the interval sets up one side of first guide plate.

Further, the swing adjusting structure further includes: a gear assembly; the second baffle is rotatably connected to the first end of the link through the gear assembly.

Further, the gear assembly includes: the first gear and the second gear are meshed and connected with each other; the first gear is connected with the second guide plate, and the second gear is connected with the first end of the connecting rod.

Further, the swing adjusting structure further includes: the device comprises an external cladding and a flexible limiter; flexible stopper includes: a first flexible stopper and a second flexible stopper; the external cladding is installed on one side of the water storage tank, the connecting rod, the heavy ball, the first flexible limiter, the second flexible limiter and the gear assembly are all located in the external cladding, the first flexible limiter is installed between the heavy ball and the water storage tank, and the second flexible limiter is installed between the heavy ball and the external cladding.

Furthermore, the number of the swing adjusting structures is two, and the swing adjusting structures are respectively a first swing adjusting structure and a second swing adjusting structure; the first swing adjusting structure and the second swing adjusting structure are respectively installed at the left end and the right end of the water storage tank.

Further, the second baffle includes: a magnetic segment and a non-magnetic segment; the magnetic section is connected with the first end of the connecting rod through the non-magnetic section.

Further, the ship water storage tank liquid level control device further comprises: a liquid distributor; the liquid distributor is installed in the upper water storage tank and is positioned at the top of the first guide plate.

Further, floater limit structure includes: the device comprises a pore plate, a floating ball and a limit cover; each small hole below the pore plate is correspondingly provided with the limiting cover, and each limiting cover is internally provided with the floating ball; the connection part of the limiting cover and the pore plate adopts arc transition, and a flow channel which is gradually reduced and then gradually expanded is formed in the limiting cover.

Furthermore, the upper water storage tank is provided with a water inlet, the lower water storage tank is provided with a water outlet, and the water outlet is connected with the centrifugal pump.

Further, the ship water storage tank liquid level control device further comprises: the partition plate and the limiting support plate; the baffle plate is positioned between the first guide plate and the floating ball limiting structure, and the first guide plate is connected to the floating ball limiting structure through the baffle plate; the spacing backup pad is installed first guide plate with between the baffle.

According to the liquid level control device for the water storage tank of the ship, the swing adjusting structure and the floating ball limiting structure are arranged at the same time, when the ship swings and inclines, the floating ball limiting structure blocks the small hole on the inclined side under the combined action of buoyancy and additional lift force, so that liquid is prevented from flowing out of the small hole on the inclined side of the water storage tank, and the water level on the other side can be raised. Meanwhile, the swing adjusting structure can guide cooling water to flow into the non-inclined side through gravity action control, so that the water level of the non-inclined side of the water storage tank can be further improved, and the problem of reduction of the filling height of the centrifugal pump caused by the inhibition of ship swing is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a stable navigation of a water level control device of a water storage tank of a ship provided by an embodiment of the invention;

FIG. 2 is a schematic structural diagram of the device for controlling the liquid level of the water storage tank of the ship provided by the embodiment of the invention when the device inclines rightwards;

FIG. 3 is an enlarged partial schematic view of the location A of FIG. 1;

FIG. 4 is a cross-sectional view taken at location B-B of FIG. 1;

description of reference numerals: 1. a water inlet; 2. a water storage tank; 3. a liquid distributor; 4. a second gear; 5. a first gear; 6. a non-magnetic segment; 7. a magnetic section; 8. an external cladding; 9. a connecting rod; 10. heavy balls; 11. a flexible stopper; 12. a first baffle; 13. a partition plate; 14. a limiting support plate; 15. an orifice plate; 16. a floating ball; 17. a limiting cover; 18. a water outlet; 19. and (4) a small hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the invention provides a liquid level control device of a ship water storage tank, which comprises the following components: storage water tank 2, first guide plate 12, second guide plate, swing regulation structure and floater limit structure. The floating ball limiting structure is arranged in the water storage tank 2 and divides the water storage tank 2 into an upper water storage tank and a lower water storage tank. The first guide plate 12 is arranged in the upper water storage tank; the swing adjusting structure includes: a second deflector, a connecting rod 9 and a heavy ball 10; the second guide plate is located the water storage tank, and the second guide plate is connected with the first end of connecting rod 9, and the second end and the heavy ball 10 of connecting rod 9 are connected, and second guide plate and connecting rod 9 are the contained angle setting to make the second guide plate pass through the swing angle of heavy ball 10, control second guide plate and connect on first guide plate 12 or control second guide plate interval setting in one side of first guide plate 12.

When the second guide plate is connected to the first guide plate 12, the cooling water can be guided to flow into the floating ball limiting structure from the other side where the second guide plate is connected to the first guide plate 12. When the second guide plate is arranged on one side of the first guide plate 12 at intervals, the cooling water can normally flow into the floating ball limiting structure.

Wherein, the upper water storage tank is provided with a water inlet 1, the lower water storage tank is provided with a water outlet 18, and the water outlet 18 is connected with the centrifugal pump. The centrifugal pump pumps water in the water storage tank 2 to be supplied to subsequent equipment.

When the ship water storage tank liquid level control device provided by the embodiment is used for stably sailing a ship, cooling water flows into the water storage tank 2 from the water inlet 1 and is pumped out from the water outlet 18 through the centrifugal pump, the water inflow is consistent with the water outflow, the water level of the water storage tank 2 is kept in a stable state, and the floating ball limiting structure is in an opening state at the moment. The rotating angle of the second guide plate is controlled by the heavy ball 10 under the action of gravity, the second guide plate is attached to the inner wall of the water storage tank 2, and meanwhile, the second guide plate is arranged on one side of the first guide plate 12 at intervals. The cooling water in the upper water storage tank can directly enter the lower water storage tank through the floating ball limiting structure and is finally pumped out from the water outlet 18 through the centrifugal pump.

When the ship is swayed by sea waves, as shown in fig. 2, the ship is leaned to the right, and the swaying adjusting structure is assumed to be disposed on the right side of the water storage tank 2. When the hull right bank certain angle, under the action of gravity, heavy ball 10 can turn right swing an angle, then heavy ball 10 drives connecting rod 9 swing to make the second guide plate take place to rotate, after rotatory certain angle, the second guide plate will be connected on first guide plate 12, constitute right side water conservancy diversion passageway and make right side cooling water flow in the left side space through right side water conservancy diversion passageway, thereby the cooling water flows into storage water tank down from floater limit structure's left side aperture 19. Simultaneously, the hull right bank back, the water in the storage water tank is toward the right bank, the floater that leads to floater limit structure right side blocks up aperture 19 on right side under the effect of buoyancy, and when the hull right bank, water can be full of the floater limit structure on right side, and there is the trend of following floater limit structure outflow, if there is water floater limit structure outflow, then the velocity of flow of water in floater limit structure will increase, thereby make the pressure reduction of this position department, this float ball in the floater limit structure that has just additionally provided an additional lift, make floater limit structure's shutoff power bigger, the shutoff effect is better. Due to the plugging effect of the floating ball limiting structure, water cannot flow out of the small right hole 19 of the floating ball limiting structure when the ship body inclines rightwards, so that the water level reduction amplitude of the water storage tank 2 is effectively restrained, and the cooling water is gathered on the left side through the right flow guide channel, so that the water level on the left side is further improved, and the purpose of restraining the effective filling height of the centrifugal pump from being reduced is achieved.

When the hull resets, heavy ball 10 also then resets, drives the second guide plate and resets, and the cooling water conservancy diversion passageway that second guide plate and first guide plate 12 constitute is relieved, and storage water tank 2 water level reconversion, floater limit structure reconversion original state. When the ship body inclines to the left, the corresponding structure on the left side acts like a right inclination.

According to the liquid level control device for the water storage tank of the ship, provided by the embodiment of the invention, the swing adjusting structure and the floating ball limiting structure are arranged at the same time, when the ship swings and inclines, the floating ball limiting structure blocks the small hole on the inclined side under the combined action of buoyancy and additional lift force, so that liquid is prevented from flowing out of the small hole on the inclined side of the water storage tank, and the water level on the other side can be raised. Meanwhile, the swing adjusting structure can guide cooling water to flow into the non-inclined side through gravity action control, so that the water level of the non-inclined side of the water storage tank can be further improved, and the problem of reduction of the filling height of the centrifugal pump caused by the inhibition of ship swing is solved.

Based on the above embodiments, in a preferred embodiment, as shown in fig. 1, the swing adjusting structure further includes: a gear assembly; the second deflector is rotatably connected to the first end of the link 9 by a gear assembly. The gear assembly includes: a first gear 5 and a second gear 4 which are meshed with each other. The first gear 5 is connected with the second guide plate, and the second gear 4 is connected with the first end of the connecting rod 9.

According to the angle of the second guide plate and the connecting rod 9 which need to rotate, the specifications of the first gear 5 and the second gear 4 can be correspondingly adjusted, and further the rotating angle of the corresponding structure can be controlled. In this embodiment, the second gear 4 can be a large gear, and the first gear 5 can be a small gear, so that when the connecting rod 9 rotates a certain angle, the rotation angle of the second deflector is greater than that of the connecting rod 9.

When the hull takes place to incline, if the right bank, heavy ball 10 will be an angle of swing right under the effect of gravity, then drive connecting rod 9 and second gear 4's rotation, through the drive ratio that sets up between big and small gear, drive the rotation of first gear 5 in the storage water tank 2, first gear 5 drives the swing of second guide plate, make the second guide plate to 2 inside swing angles of storage water tank, thereby the guide is gathered to 2 left sides intervals of storage water tank from storage water tank 2's cooling water, avoid the cooling water to get into 2 right sides of storage water tank region and lead to the too much water of floater limit structure top gathering thereby weaken floater limit structure's shutoff effect. Meanwhile, the cooling water is collected to the left side, so that the liquid level at the left side can be effectively improved, and the reduction of the effective filling height of the centrifugal pump is inhibited.

In this embodiment, the swing adjusting structure further includes: an outer cover 8 and a flexible stopper 11. The flexible stopper 11 is used to limit the swing range of the heavy ball 10, and includes: a first flexible stopper and a second flexible stopper; external cladding 8 is installed in one side of storage water tank 2, and second guide plate, connecting rod 9, heavy ball 10, first flexible stopper, the flexible stopper of second and gear assembly all are located external cladding 8, all install in storage water tank 2 outside except the second guide plate in the swing regulation structure promptly, can prevent to a certain extent that 2 inside liquid in storage water tank from outflowing. The first flexible stopper is installed between the heavy ball 10 and the water storage tank 2, and the second flexible stopper is installed between the heavy ball 10 and the external cladding 8. When the ship sails stably, the heavy ball 10 abuts against the first flexible stopper. When the vessel is rocked, the heavy ball 10 will swing between the first flexible stopper and the second flexible stopper.

Generally, the number of the swing adjusting structures is two, namely a first swing adjusting structure and a second swing adjusting structure. The first swing adjusting structure and the second swing adjusting structure are respectively arranged at the left end and the right end of the water storage tank 2.

To ensure the connection of the second baffle to the first baffle 12, the second baffle comprises: a magnetic segment 7 and a non-magnetic segment 6; the magnetic section 7 is connected to a first end of a linkage 9 by a non-magnetic section 6. The first guide plate 12 is a stainless steel guide short plate, and after rotating for a certain angle, the magnetic section 7 can be connected to the first guide plate 12. The lengths of the magnetic sections 7 and the non-magnetic sections 6 can be designed according to the actual situation.

Wherein, boats and ships storage water tank liquid level control device still includes: a liquid distributor 3; the liquid distributor 3 is installed in the upper water storage tank, and the liquid distributor 3 is positioned on the top of the first guide plate 12. So that the cooling water entering from the water inlet 1 can uniformly fall into the water storage tank 2, a large amount of cooling water is prevented from directly rushing into the water storage tank from the water inlet 1, and the impact force on related equipment is reduced.

Wherein, boats and ships storage water tank liquid level control device still includes: a partition plate 13 and a limit supporting plate 14; baffle 13 is located between first guide plate 12 and the floater limit structure for divide into the left and right sides with last storage water tank, and the height of baffle 13 can be confirmed according to specific demand. First guide plate 12 passes through baffle 13 and connects on the floater limit structure. Spacing support plate 14 is installed between first baffle 12 and baffle 13 for support first baffle 12. The connecting part of the first guide plate 12 and the partition plate 13 can swing rotatably according to different requirements.

As shown in fig. 3, the floating ball limiting structure includes: the hole plate 15, the floating ball 16 and the limit cover 17; each small hole 19 below the pore plate 15 is correspondingly provided with a limiting cover 17, each limiting cover 17 is internally provided with a floating ball 16, and the diameter of each limiting cover 17 is slightly larger than that of the floating ball 16, so that the floating ball 16 is prevented from being blocked. The floating ball 16 is made of a light material with certain flexibility, the flexible material can enable the blocking effect of the floating ball 16 to be better, and the floating ball 16 made of the light material can respond to the change of the liquid level more quickly. The connection part of the limit cover 17 and the orifice plate 15 adopts arc transition, and a flow channel which is gradually reduced and then gradually expanded is formed in the limit cover 17. Generally, the pore plate 15 is arranged above the liquid level when the water storage tank 2 runs stably, the pore plate 15 is provided with a plurality of pores 19 on the whole cross section, and the corresponding limit cover 17 is also provided with a plurality of pores 19, so that the liquid in the limit cover 17 can enter and exit conveniently. The cooling water above the hole plate can only flow into the lower part of the hole plate through the small holes 19 on the hole plate 15. When the ship normally and stably runs, the floating ball 16 floats on the water surface and has a certain distance with the pore plate 15, and the small hole 19 on the pore plate 15 is in an open state, so that cooling water above the small hole conveniently flows through the small hole; when boats and ships take place to sway the slope, for example the hull inclines to the right side, leads to the right side water level to rise, makes the corresponding floater 16 of right side follow the come-up to plug up the aperture 19 that corresponds on the right side orifice plate 15, make water unable from the outflow of right side aperture 19, thereby restrain the decline by a wide margin of storage water tank water level.

Wherein, spacing cover 17 can adopt the cylinder type structure, its connection position with orifice plate 15 adopts the arc transition, just formed the space that gradually expands after the convergent earlier between it and the floater 16, when boats and ships slope, the water of orifice plate 15 below can bypass the space between floater 16 and spacing cover 17 and flow in orifice plate 15's aperture 19, when rivers cross the convergent space between floater 16 and spacing cover 17, the velocity of flow increases, lead to this department pressure reduction, thereby make floater 16 receive an ascending additional lift, in addition the buoyancy that floater 16 self received, both combined action make floater 16 block up orifice 15's aperture 19 better, can prevent to a certain extent that liquid from flowing through.

As shown in fig. 4, an example of the outer shape of a water storage tank is given, but not limited to the case of this example. The cross section of the water storage tank 2 can be circular or rectangular. The openings in the liquid distributor 3 can be arranged as shown in fig. 4, or can be arranged as the case may be. The orifice plate 15 is similarly perforated with small holes 19.

When the ship water storage tank liquid level control device provided by the embodiment is used for stably sailing a ship, cooling water flows into the water storage tank 2 from the water inlet 1 and is pumped out from the water outlet 18 through the centrifugal pump, the water inflow is consistent with the water outflow, the water level of the water storage tank 2 is kept in a stable state, the floating ball 16 floats on the water surface at the moment and has a certain distance with the pore plate 15, and the small hole 19 in the pore plate 15 is in an open state. The heavy balls 10 in the external cladding 8 at the two outer sides of the water storage tank 2 are in contact with the flexible limiting stopper 11 at the inner side, and the second guide plate connected with the first gear 5 in the water storage tank 2 is attached to the inner wall of the water storage tank 2. Connected to the first gear wheel 5 is a non-magnetic section 6 of the second deflector and a magnetic section 7 is located at the other end of the second deflector. After cooling water flows into the water storage tank 2 from the water inlet 1, the cooling water is uniformly distributed to a lower space through the liquid distributor 3 above the water storage tank 2, then flows into the limiting cover 17 through the small hole 19 on the pore plate 15, is communicated with external water through the small hole 19 on the limiting cover 17, and finally is pumped out from the water outlet 18 through the centrifugal pump.

When the ship is subjected to wave and sways, the ship water storage tank liquid level control device provided by the embodiment takes the ship as an example of right inclination as shown in fig. 2. When the ship body inclines rightwards for a certain angle theta 1, the heavy ball 10 can swing rightwards for an angle theta 2 under the action of gravity, then the heavy ball 10 drives the connecting rod 9 to swing by an angle theta 2, the connecting rod 9 is connected with the second gear 4, therefore, the second gear 4 can also rotate by an angle theta 2, the second gear 4 and the first gear 5 are in gear transmission, through setting a reasonable gear transmission ratio, the first gear 5 can rotate by an angle theta 3, thereby rotating the second guide plate connected with the first gear 5, the magnetic section 7 of the second guide plate will attract the first guide plate 12 on the right side of the baffle 13, finally the magnetic section 7 and the first guide plate 12 on the right side are jointed by magnetic adsorption to form a right guide channel, so that the right cooling water distributed by the liquid distributor 3 flows into the left space of the middle partition 13 through the right guide passage, and the cooling water flows into the lower water from the left small hole 19 of the orifice plate 15. Simultaneously, the hull right bank back, the water in the storage water tank 2 is toward the right bank, thereby it blocks up the aperture 19 that the aperture plate 15 right side corresponds to result in the floater 16 on right side to go up under the effect of buoyancy, and when the hull right bank, water can be full of the spacing cover 17 on right side, and have the trend of the gradual reduction gradual expansion passageway outflow between floater 16 and the spacing cover 17, if there is water to flow from this gradual reduction gradual expansion passageway, then the velocity of flow of water will increase in the gradual reduction passageway, thereby make the pressure reduction of this position department, this has additionally provided an additional lift for floater 16, make floater 16 bigger to the shutoff power of aperture 19, the shutoff effect is better. Due to the plugging effect of the floating ball 16, water cannot flow out from the small hole 19 on the right side of the pore plate 15 when the ship body inclines rightwards, so that the water level reduction amplitude of the water storage tank is effectively inhibited, and in addition, the cooling water is converged on the left side of the partition plate 13 through the flow guide channel on the right side of the water inlet 1, the water level on the left side is further improved, and the purpose of inhibiting the effective filling height of the centrifugal pump from being reduced is achieved.

When the hull resets, heavy ball 10 also follows and resets, drives the second guide plate and resets, and the cooling water conservancy diversion passageway that second guide plate and first guide plate 12 constitute is relieved, and the water level reconversion of storage water tank 2, the whereabouts of right side floater 16 make 15 right side apertures 19 of orifice plate reopen, and the device resumes original state. When the ship body inclines to the left, the corresponding structure on the left side acts like a right inclination.

In summary, according to the liquid level control device for the water storage tank of the ship provided by the embodiment of the invention, the swing adjusting structure and the floating ball limiting structure are arranged at the same time, when the ship swings and inclines, the floating ball limiting structure blocks the small hole on the inclined side under the combined action of buoyancy and additional lift force, so that the liquid is prevented from flowing out of the small hole on the inclined side of the water storage tank, and the water level on the other side can be raised. Meanwhile, the swing adjusting structure can guide cooling water to flow into the non-inclined side through gravity action control, so that the water level of the non-inclined side of the water storage tank can be further improved, and the problem of reduction of the filling height of the centrifugal pump caused by the inhibition of ship swing is solved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the invention, but not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ship water storage tank liquid level control device is characterized by comprising:

the water storage tank, the first guide plate, the second guide plate, the swing adjusting structure and the floating ball limiting structure are arranged on the water storage tank;

2. The marine vessel storage tank liquid level control device of claim 1, wherein the swing adjustment structure further comprises: a gear assembly; the second baffle is rotatably connected to the first end of the link through the gear assembly.

3. The marine water storage tank liquid level control device of claim 2, wherein the gear assembly comprises: the first gear and the second gear are meshed and connected with each other; the first gear is connected with the second guide plate, and the second gear is connected with the first end of the connecting rod.

4. The marine vessel storage tank liquid level control device of claim 2, wherein the swing adjustment structure further comprises: the device comprises an external cladding and a flexible limiter; the flexible stopper includes: a first flexible stopper and a second flexible stopper; the external cladding is installed on one side of the water storage tank, the connecting rod, the heavy ball, the first flexible limiter, the second flexible limiter and the gear assembly are all located in the external cladding, the first flexible limiter is installed between the heavy ball and the water storage tank, and the second flexible limiter is installed between the heavy ball and the external cladding.

5. The marine water storage tank liquid level control device of any one of claims 1-4, wherein the number of the swing adjusting structures is two, namely a first swing adjusting structure and a second swing adjusting structure; the first swing adjusting structure and the second swing adjusting structure are respectively installed at the left end and the right end of the water storage tank.

6. The marine vessel storage tank liquid level control device of any one of claims 1-4, wherein the second baffle comprises: a magnetic segment and a non-magnetic segment; the magnetic section is connected with the first end of the connecting rod through the non-magnetic section.

7. The marine tank liquid level control device of any one of claims 1-4, further comprising: a liquid distributor; the liquid distributor is installed in the upper water storage tank and is positioned at the top of the first guide plate.

8. The marine water storage tank liquid level control device of any one of claims 1-4, wherein the floating ball limiting structure comprises: the device comprises a pore plate, a floating ball and a limit cover; each small hole below the pore plate is correspondingly provided with the limiting cover, and each limiting cover is internally provided with the floating ball; the connection part of the limiting cover and the pore plate adopts arc transition, and a flow channel which is gradually reduced and then gradually expanded is formed in the limiting cover.

9. The marine water storage tank liquid level control device of any one of claims 1-4, wherein the upper water storage tank is provided with a water inlet, the lower water storage tank is provided with a water outlet, and the water outlet is connected with a centrifugal pump.

10. The marine tank liquid level control device of any one of claims 1-4, further comprising: the partition plate and the limiting support plate; the baffle plate is positioned between the first guide plate and the floating ball limiting structure, and the first guide plate is connected to the floating ball limiting structure through the baffle plate; the spacing backup pad is installed first guide plate with between the baffle.