CN113389734B

CN113389734B - Ship emergency fire-fighting system

Info

Publication number: CN113389734B
Application number: CN202110714897.4A
Authority: CN
Inventors: 朱建林; 谢磊; 薛小伟
Original assignee: Nanjing Shenghang Shipping Co ltd
Current assignee: Nanjing Shenghang Shipping Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2023-03-07
Anticipated expiration: 2041-06-25
Also published as: CN113389734A

Abstract

The utility model relates to an emergent fire control system of boats and ships uses in the field of boats and ships fire control technique, and it is connected with inlet tube and outlet pipe including installing the centrifugal pump in the cabin bottom on the centrifugal pump, and in the inlet tube tip soaked the water body, the outlet pipe was equipped with exhaust tube and first valve along keeping away from the centrifugal pump direction in proper order, was equipped with the vacuum device who is connected with the exhaust tube in the cabin. This application has the effect that improves fire extinguishing system water outlet speed.

Description

Ship emergency fire-fighting system

Technical Field

The application relates to the field of ship fire fighting technologies, in particular to an emergency fire fighting system for ships.

Background

The marine fire pump set is one of necessary safety devices for large and medium ships, and has the main function of conveying seawater in a low-level seawater tank to a fire pipe through a fire pump for emergency use.

The fire fighting pipe is communicated with the fire hydrant, and the low-level seawater tank is arranged at the bottom of the ship and is communicated with the seawater outside the ship through a submarine door arranged on an outer plate at the bottom of the ship. When a fire hazard occurs on a ship, a crew can connect the fire hose with the fire hydrant and then open the valve of the fire hydrant, and the crew can convey fire water to a fire area through the fire hose to extinguish the fire.

Chinese patent No. CN209414187U discloses a marine fire pump set, which includes a centrifugal water pump, a gearbox, a base and a coupling. The base is a rectangular frame, a centrifugal water pump is arranged at the higher end of the base, and a gearbox is arranged at the other end of the base. The gearbox is a horizontal transmission mechanism, an input shaft section of the gearbox is sleeved with a coupling, and an output shaft of the gearbox positioned on the other side is coaxially connected with the centrifugal water pump to form a coupling transmission mechanism of the gearbox and the centrifugal water pump.

In view of the above-mentioned related technologies, the inventor believes that the centrifugal pump needs to be manually filled with water before being used to discharge air in the pipeline, which affects the water discharge speed of the fire fighting system.

Disclosure of Invention

In order to improve the problem that the manual watering of centrifugal pump influences the water outlet speed of fire extinguishing system, this application provides an emergent fire extinguishing system of boats and ships.

The application provides an emergent fire extinguishing systems of boats and ships adopts following technical scheme:

the utility model provides an emergent fire control system of boats and ships, is including installing the centrifugal pump in cabin bottom, be connected with inlet tube and outlet pipe on the centrifugal pump, in the inlet tube tip soaked the water body, the outlet pipe is equipped with exhaust tube and first valve along keeping away from the centrifugal pump direction in proper order, is equipped with the negative pressure device who is connected with the exhaust tube in the cabin.

Through adopting above-mentioned technical scheme, the operator closes first valve, utilizes negative pressure device to make and produces the negative pressure in the exhaust pipe for the sea water is in the inlet tube and is gushed centrifugal pump and outlet pipe under the external pressure effect, and the centrifugal pump starts alright the operation of drawing water this moment, and is simple swift, has saved the required time of artifical watering, has improved fire extinguishing system water outlet speed.

Optionally, the negative pressure device includes a first air pipe connected to the exhaust pipe, one end of the first air pipe is connected to the water outlet pipe, the other end of the first air pipe is communicated with the high-pressure air source, the air outlet end of the first air pipe is located on a side of the first valve departing from the centrifugal pump, and the air outlet end of the first air pipe is higher than the air inlet end.

Through adopting above-mentioned technical scheme, in high-pressure air enters into the outlet pipe from first trachea, the effect that the link of exhaust tube and first trachea received the high-pressure air current velocity of flow and produces the negative pressure rapidly to introduce the sea water from the inlet tube.

Optionally, the one end that the outlet pipe was kept away from to first trachea is connected with the second trachea, the second trachea is the arc and the one end that first trachea was kept away from to the second trachea distributes up.

Through adopting above-mentioned technical scheme, the arc of second trachea is buckled and has been played the effect of buffering retaining, has reduced the possibility that the sea water got into in the high-pressure air supply when air pressure weakens.

Optionally, a second valve is installed on the second air pipe.

By adopting the technical scheme, the second valve is closed after the centrifugal pump starts pumping water, so that the second air pipe is closed.

Optionally, the second air pipe is connected with the water inlet pipe through an air pipe, and a check valve and a third valve are connected in series on the air pipe.

By adopting the technical scheme, when the water inlet pipe is blocked, the third valve and the one-way valve are opened, so that high-pressure air flow enters the water inlet pipe through the air conveying pipe, and a blockage in the air inlet pipe is blown out.

Optionally, the water inlet end of the centrifugal pump is connected with a shunt tube, the water inlet tube is connected to one end of the shunt tube, the other end of the shunt tube is connected with a water delivery tube, and the shunt tube is provided with a first electromagnetic valve corresponding to the water inlet tube and a second electromagnetic valve corresponding to the water delivery tube.

Through adopting above-mentioned technical scheme, when the inlet tube takes place to block up at the urgent in-process that draws water, first solenoid valve is closed, and the second solenoid valve is opened, and high pressurized air source opens, and the sea water is introduced and is carried by the raceway, has increased the safety guarantee nature of fire extinguishing system water.

Optionally, water is injected into the water delivery pipe, and a plugging piece for plugging is arranged at the end of the water delivery pipe.

Through adopting above-mentioned technical scheme, when needs raceway draw water, the shutoff piece is relieved, because the intraductal water of having annotated of raceway for the centrifugal pump can directly draw water and carry, and is convenient quick.

Optionally, the blocking piece comprises a rotary table and a sleeve, the sleeve is connected to the end of the water delivery pipe, the rotary table is provided with two rotary tables which are mutually connected in a rotating manner, the two rotary tables are respectively provided with a plurality of symmetrically distributed water inlet holes, one of the rotary tables is fixed in the sleeve, the side wall of the other rotary table is in threaded connection with a deflector rod, the water delivery pipe is sleeved with a lifting cylinder, the lifting cylinder is provided with a guide groove for the deflector rod to pass through, and the guide groove extends upwards spirally along the outer circumferential surface of the lifting cylinder;

the water pipe is provided with an electromagnet, the electromagnet is located above the lifting cylinder, the outer wall of the electromagnet is provided with a fixing ring, the lifting cylinder is provided with a guide rod, the guide rod upwards penetrates through the fixing ring, a supporting plate is connected to one end of the guide rod, a spring is sleeved between the supporting plate and the fixing ring, when the lifting cylinder is adsorbed on the electromagnet, the spring is in a stretched state, and the water inlet holes in the two turnplates are staggered.

Through adopting above-mentioned technical scheme, the electro-magnet outage is lost magnetism, and spring pulling guide bar moves down, and the guide bar promotes the lift section of thick bamboo and moves down, and the driving lever drives its carousel that corresponds and rotates under the direction of guide slot for the inlet opening on two carousels is relative, and the sea water is followed the inlet opening and is inputed.

Optionally, the one end that the centrifugal pump was kept away from to the inlet tube is connected with the rose box, two through-holes have been seted up to the rose box bottom, the rose box bottom is equipped with the steel wire filter screen that is used for covering two through-holes, the rose box internal rotation is connected with the pivot that corresponds with two through-holes, through-hole and steel wire filter screen are passed in proper order in the pivot, and the one end of passing is connected with the cutter that a plurality of circumference distribute, cutter and steel wire filter screen laminating, be equipped with on the rose box and be used for driving pivot pivoted servo motor.

By adopting the technical scheme, when the seawater is pumped by the water inlet pipe, the impurities in the seawater are filtered by the steel wire filter screen, so that the possibility that the water inlet pipe and the centrifugal pump are blocked is reduced; meanwhile, the servo motor drives the cutter to rotate, and sundries adhered to the surface of the steel wire filter screen are removed, so that the filtering effect of the steel wire filter screen is ensured.

Optionally, the side wall of the filter box is provided with a floating plate.

Through adopting above-mentioned technical scheme, the kickboard makes the rose box float on the surface of water on the one hand, and on the other hand does benefit to and improves the holistic stability of rose box.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the negative pressure device enables air in the pipeline to be discharged quickly, so that time required by manual irrigation is saved, and the water outlet speed of a fire fighting system is improved;

2. when the water inlet pipe is blocked, the one-way valve is opened, so that high-pressure air flow enters the water inlet pipe through the air delivery pipe, and then a blockage in the air inlet pipe is blown out; the double cooperation of inlet tube and raceway has increased the safety guarantee nature of fire extinguishing system water.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying the cutter and the steel wire screen according to the embodiment of the present application.

Fig. 3 is a schematic structural diagram for embodying a closure according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram for embodying a guide groove according to an embodiment of the present application.

Description of reference numerals: 1. a centrifugal pump; 11. a water inlet pipe; 12. a water outlet pipe; 121. a first valve; 13. an air exhaust pipe; 2. a negative pressure device; 21. a first air pipe; 22. a second air pipe; 221. a second valve; 23. a gas delivery pipe; 231. a one-way valve; 232. a third valve; 3. a shunt tube; 31. a first solenoid valve; 32. a second solenoid valve; 33. a water delivery pipe; 4. a blocking member; 41. a turntable; 411. a water inlet hole; 412. a deflector rod; 42. a sleeve; 43. a lifting cylinder; 431. a guide groove; 44. an electromagnet; 45. a fixing ring; 46. a guide bar; 47. a support plate; 48. a spring; 5. a filter box; 51. a through hole; 52. a steel wire filter screen; 53. a rotating shaft; 531. a cutter; 54. a servo motor; 55. a floating plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses emergent fire extinguishing system of boats and ships. As shown in fig. 1, emergent fire extinguishing system of boats and ships is including installing centrifugal pump 1 in cabin bottom, 1 water inlet of centrifugal pump is connected with shunt tubes 3, shunt tubes 3's one end is connected with inlet tube 11, the other end is connected with raceway 33, inlet tube 11 is parallel to each other and both keep away from in the equal vertical downward infiltration body of one end of shunt tubes 3 with raceway 33, inlet tube 11 end connection has filtering component, it has water to fill in raceway 33, raceway 33 tip is equipped with shutoff 4, be equipped with first solenoid valve 31 and second solenoid valve 32 on the shunt tubes 3, first solenoid valve 31 corresponds with inlet tube 11, an input for controlling inlet tube 11 in to shunt tubes 3, second solenoid valve 32 corresponds with raceway 33.

As shown in fig. 1, a water outlet pipe 12 is connected to a water outlet of the centrifugal pump 1, the water outlet pipe 12 is vertically distributed upwards, an air exhaust pipe 13 and a first valve 121 are sequentially arranged on the water outlet pipe 12 along the direction away from the centrifugal pump 1, the air exhaust pipe 13 obliquely and upwards extends along the direction away from the water outlet pipe 12, and a negative pressure device 2 connected with the air exhaust pipe 13 is arranged in the cabin.

As shown in fig. 1, the negative pressure device 2 includes a first air pipe 21, the first air pipe 21 is connected to one end of the air exhaust pipe 13 far away from the water outlet pipe 12, the first air pipe 21 is obliquely arranged, one end of the first air pipe 21, which is inclined upwards, is connected with the water outlet pipe 12, a connecting end of the first air pipe 21 and the water outlet pipe 12 is higher than the first valve 121, one end of the first air pipe 21, which is inclined downwards, is connected with a second air pipe 22, the second air pipe 22 is bent downwards to form an arc shape, one end of the second air pipe 22, which is far away from the first air pipe 21, is upward distributed and communicated with a high-pressure air source, the second air pipe 22 is provided with a second valve 221, and the second valve 221 and the first valve 121 are both controlled by an electromagnetic valve.

When water is pumped, the first valve 121 is closed, the second valve 221 is opened, the centrifugal pump 1 is started, high-pressure air flow is sequentially sprayed into the water outlet pipe 12 through the second air pipe 22 and the first air pipe 21 at a high speed, pressure difference is generated at the joint of the air pumping pipe 13 and the first air pipe 21 due to flowing of the high-speed air flow, seawater flows in from the water inlet pipe 11 under the action of external pressure, air in the water inlet pipe 11 and the water outlet pipe 12 is discharged, the centrifugal pump 1 starts water pumping operation, at the moment, the first valve 121 is opened, the second valve 221 is closed, one part of the seawater is conveyed from the water outlet pipe 12, the other part of the seawater flows into the water outlet pipe 12 through the air pumping pipe 13 and the first air pipe 21, time required by manual water filling is saved, the pipeline can achieve introduction of the seawater in a short time due to the spraying of the high-pressure air flow, and the water outlet speed of a fire fighting system is improved.

The second air pipe 22 is connected with the water inlet pipe 11 through an air pipe 23, the connecting end of the air pipe 23 and the second air pipe 22 is positioned below the second valve 221, a third valve 232 and a one-way valve 231 are sequentially connected on the air pipe 23 in series, and the third valve 232 is also in a normally closed state by adopting an electromagnetic valve; when the water inlet pipe 11 is blocked, the second valve 221 is closed, and the third valve 232 and the one-way valve 231 are opened, so that high-pressure air flow is conveyed into the water inlet pipe 11 from the air conveying pipe 23, and the blockage in the water inlet pipe 11 is flushed out of the pipe.

As shown in fig. 2, the filtering assembly includes a filtering box 5, each side wall of the filtering box 5 is vertically provided with a floating plate 55, the bottom of the filtering box 5 is provided with two through holes 51 which penetrate through the through holes, a steel wire filter 52 is arranged on the bottom surface of the filtering box 5, the steel wire filter 52 covers the two through holes 51, two rotating shafts 53 are rotatably connected in the filtering box 5, the rotating shafts 53 correspond to the through holes 51 one by one and are coaxially distributed with each other, the lower end of the rotating shaft 53 sequentially penetrates through the through holes 51 and the steel wire filter 52, one end penetrating through the steel wire filter 52 is connected with a plurality of cutters 531 which are equidistantly distributed along the circumference of the axis of the rotating shaft 53, the cutters 531 are attached to the steel wire filter 52, two servo motors 54 are arranged on the filtering box 5, the two servo motors 54 correspond to the two rotating shafts 53 respectively, the motor shafts of the servo motors 54 are coaxially fixed with the corresponding rotating shafts 53, the two servo motors 54 are all waterproof, and one end of the water inlet pipe 11, which is far away from the centrifugal pump 1, is inserted in the filtering box 5 and is fixed with the filtering box 5.

The filter box 5 is immersed in seawater, when the water inlet pipe 11 pumps water, the seawater is filtered by the steel wire filter screen 52, so that the impurity content in the seawater is reduced, the possibility of blocking the water inlet pipe 11 is reduced, meanwhile, the servo motor 54 drives the rotating shaft 53 to drive the cutter 531 to rotate, the cutter 531 removes impurities adhered to the surface of the steel wire filter screen 52, and the meshes of the steel wire filter screen 52 are kept smooth.

As shown in fig. 3, the plugging member 4 includes a sleeve 42 coaxially connected to the water pipe 33 and far away from one end of the branch pipe, two rotating discs 41 axially distributed are arranged in the sleeve 42, the two rotating discs 41 are coaxially connected in a rotating manner, the outer diameter of each rotating disc 41 is the same as the inner diameter of the sleeve 42, the inner walls of the rotating discs 41 and the sleeves 42 above the rotating discs 41 are fixed, an elastic sealing gasket is arranged on the rotating discs 41 below the rotating discs, a plurality of water inlet holes 411 are formed in the two rotating discs 41, the water inlet holes 411 on the two rotating discs 41 correspond to one another one by one, and each water inlet hole 411 penetrates through the elastic sealing gasket.

As shown in fig. 3 and 4, a shifting lever 412 is connected to a side wall of the lower turntable 41 through a screw thread, the shifting lever 412 extends along a radial direction of the turntable 41, the water pipe 33 is sleeved with a lifting cylinder 43, the lifting cylinder 43 is made of iron, the lifting cylinder 43 is connected along an axial direction of the water pipe 33 in a sliding manner, a guide groove 431 corresponding to the shifting lever 412 is formed in an outer wall of the lifting cylinder 43, one end, far away from the turntable 41, of the shifting lever 412 penetrates out of the guide groove 431, the guide groove 431 extends upwards along an outer circumferential surface of the lifting cylinder 43 in a spiral manner, and an extending track of the guide groove 431 is a cylindrical spiral line.

The outer wall of the lifting cylinder 43 is provided with two guide rods 46 which are symmetrically distributed about the axis of the lifting cylinder 43, the two guide rods 46 extend upwards along the axis of the lifting cylinder 43, the water pipe 33 is provided with an electromagnet 44 above the lifting cylinder 43, the side wall of the electromagnet 44 is provided with a fixing ring 45, the fixing ring 45 is provided with a hole for the two guide rods 46 to pass through, one end of each guide rod 46 passing through the fixing ring 45 is in threaded connection with a support plate 47, the guide rods 46 are sleeved with springs 48, one end of each spring 48 is fixed with the support plate 47, and the other end of each spring 48 is fixed with the fixing ring 45; when the lifting cylinder 43 abuts against the electromagnet 44, the electromagnet 44 is energized to generate magnetism, and the lifting cylinder 43 is attracted, at this time, the shift lever 412 is positioned at the lowest end of the guide groove 431, the water inlet holes 411 on the two rotating discs 41 are staggered, and the spring 48 is in a stretched state.

When the electromagnet 44 is powered off and loses magnetism, the spring 48 pulls the support plate 47 to move downwards, the support plate 47 drives the guide rod 46 to move downwards, the guide rod 46 drives the lifting cylinder 43 to descend, the deflector rod 412 moves relatively along the guide groove 431, the corresponding rotary discs 41 are driven to rotate for a certain angle under the guiding and pushing of the groove wall of the guide groove 431, the water inlet holes 411 on the two rotary discs 41 are right opposite, the water delivery pipe 33 is communicated with seawater, and water pumping operation is carried out.

The implementation principle of the embodiment of the application is as follows: when water is pumped, the first valve 121, the third valve 232 and the second electromagnetic valve 32 are closed, the second valve 221 and the first electromagnetic valve 31 are opened, high-pressure air flows into the water outlet pipe 12 through the second air pipe 22 and the first air pipe 21, negative pressure is generated in the water inlet pipe 11, filtered seawater is sucked into the water inlet pipe 11 and the centrifugal pump 1, when the seawater is shunted to the air exhaust pipe 13 through the water outlet pipe 12 and then is guided into the water outlet pipe 12 through the first air pipe 21, the first valve 121 is opened, and the seawater is conveyed to a ship deck along the water outlet pipe 12.

When the water inlet pipe 11 is blocked in the emergency water pumping process, the first electromagnetic valve 31 is closed, the second electromagnetic valve 32 is opened, the electromagnet 44 is powered off, the lifting cylinder 43 descends and drives the shifting rod 412 to drive the rotary tables 41 to rotate, the water inlet holes 411 on the two rotary tables 41 are opposite, the water conveying pipe 33 is communicated with seawater, and as the water conveying pipe 33 is filled with water in advance and is matched with the seawater stored in the water conveying pipe when the centrifugal pump 1 pumps water, the seawater can be directly pumped out of the water conveying pipe 33, the water outlet of a fire-fighting system is ensured, and at the moment, the water inlet holes 411 also play a role in filtering partial impurities in the seawater.

When the centrifugal pump 1 can not pump water smoothly through the water pipe 33, the first valve 121 is closed, the second valve 221 is opened, and negative pressure action is repeated, so that the centrifugal pump is flexible and convenient.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an emergent fire extinguishing system of boats and ships which characterized in that: the device comprises a centrifugal pump (1) arranged at the bottom of a cabin, wherein the centrifugal pump (1) is connected with a water inlet pipe (11) and a water outlet pipe (12), the end part of the water inlet pipe (11) is immersed in water, the water outlet pipe (12) is sequentially provided with an air exhaust pipe (13) and a first valve (121) along the direction far away from the centrifugal pump (1), and a negative pressure device (2) connected with the air exhaust pipe (13) is arranged in the cabin;

the negative pressure device (2) comprises a first air pipe (21) connected with the air exhaust pipe (13), one end of the first air pipe (21) is connected with the water outlet pipe (12), the other end of the first air pipe is communicated with the high-pressure air source, the air outlet end of the first air pipe (21) is positioned on one side, away from the centrifugal pump (1), of the first valve (121), and the air outlet end of the first air pipe (21) is higher than the air inlet end;

one end of the first air pipe (21) far away from the water outlet pipe (12) is connected with a second air pipe (22), the second air pipe (22) is arc-shaped, and one end of the second air pipe (22) far away from the first air pipe (21) is distributed upwards;

a second valve (221) is arranged on the second air pipe (22);

the second air pipe (22) is connected with the water inlet pipe (11) through an air pipe (23), and a one-way valve (231) and a third valve (232) are connected on the air pipe (23) in series;

the centrifugal pump is characterized in that the water inlet end of the centrifugal pump (1) is connected with a flow dividing pipe (3), the water inlet pipe (11) is connected to one end of the flow dividing pipe (3), the other end of the flow dividing pipe (3) is connected with a water delivery pipe (33), and a first electromagnetic valve (31) corresponding to the water inlet pipe (11) and a second electromagnetic valve (32) corresponding to the water delivery pipe (33) are arranged on the flow dividing pipe (3);

the water pipe (33) is filled with water, and the end part of the water pipe (33) is provided with a plugging piece (4) for plugging.

2. The marine emergency fire protection system of claim 1, wherein: the blocking piece (4) comprises rotary discs (41) and sleeves (42), the sleeves (42) are connected to the end of the water conveying pipe (33), the rotary discs (41) are provided with two rotary discs which are connected in a mutually rotating mode, a plurality of water inlet holes (411) are formed in each of the two rotary discs (41) and are symmetrically distributed, one rotary disc (41) is fixed in the sleeve (42), the side wall of the other rotary disc (41) is connected with a shifting rod (412) in a threaded mode, a lifting cylinder (43) is sleeved outside the water conveying pipe (33), a guide groove (431) for the shifting rod (412) to penetrate through is formed in the lifting cylinder (43), and the guide groove (431) extends upwards along the outer circumferential surface of the lifting cylinder (43) in a spiral mode;

be equipped with electro-magnet (44) on raceway (33), electro-magnet (44) are located a lift section of thick bamboo (43) top, electro-magnet (44) outer wall is equipped with solid fixed ring (45), be equipped with guide bar (46) on a lift section of thick bamboo (43), guide bar (46) upwards pass solid fixed ring (45), and the one end of passing is connected with extension board (47), guide bar (46) cover is equipped with spring (48) between extension board (47) and solid fixed ring (45), works as a lift section of thick bamboo (43) adsorbs when on electro-magnet (44), spring (48) are in by tensile state, two inlet opening (411) on carousel (41) stagger mutually.

3. The emergency fire fighting system for ships according to claim 1, wherein: the one end that centrifugal pump (1) was kept away from in inlet tube (11) is connected with rose box (5), two through-holes (51) have been seted up to rose box (5) bottom, rose box (5) bottom is equipped with steel wire filter screen (52) that are used for covering two through-holes (51), rose box (5) internal rotation is connected with pivot (53) that correspond with two through-holes (51), through-hole (51) and steel wire filter screen (52) are passed in proper order in pivot (53), and the one end that just passes is connected with cutter (531) that a plurality of circumferences distribute, cutter (531) and steel wire filter screen (52) laminating, be equipped with on rose box (5) and be used for driving pivot (53) pivoted servo motor (54).

4. The marine emergency fire protection system of claim 3, wherein: the side wall of the filter box (5) is provided with a floating plate (55).