A marine equipment based anti-corrosion type coarse water filter

Abstract

The application discloses the field of rough water filter, and relates to a rough water filter based on a ship device and capable of preventing corrosion, which comprises a mounting barrel, a water inlet pipe is fixedly connected to the right side wall of the mounting barrel, a water outlet pipe is fixedly connected to the left side wall of the mounting barrel, and a filter screen is fixedly connected in the mounting barrel. The rough water filter is provided with a heating mechanism and a self-locking mechanism. When the water draining work is completed, the self-locking mechanism is automatically opened, the threaded plate moves downward under the action of a first return spring, the threaded rod reversely rotates, the sealing block re-seals the water inlet pipe, the first through hole and the second through hole are re-connected, and the heated seawater is used for flushing the filter screen. Since the seawater is in a heated state, the sea salt adhered to the filter screen can be dissolved and separated from the surface of the filter screen, so that the filter screen is prevented from being blocked by the sea salt and corroded by the sea salt, the filtering effect of the filter screen is improved, and the service life of the filter screen is prolonged.

Description

TECHNICAL FIELD

[0001] The application discloses a rough water filter based on a ship equipment and having an anti-corrosion function. BACKGROUND

[0002] The rough water filter is used for being installed at a fuel oil chamber of a ship, and the sucked dirty water is flowed into the rough water filter, filtered by a filtering mechanism inside the main body, and the impurities in the dirty water are removed, so that the filtered clean water is obtained, and the use is facilitated.

[0003] In the prior art, the rough water filter is an important use machine of the ship, when the ship is running in seawater, since a large amount of sea salt exists in the seawater, when the rough water filter filters the seawater for a long time, the sea salt in the seawater is accumulated on both sides of the filter plate, not only causes the blockage, but also the corrosiveness of the sea salt can corrode the filter plate, so that the filtering function of the filter plate is reduced, and the problem that the rough water filter is not fully filtered is caused.

[0004] Based on this, the application designs a rough water filter based on a ship equipment and having an anti-corrosion function to solve the above problems. SUMMARY

[0005] The application aims to provide a rough water filter based on a ship equipment and having an anti-corrosion function to solve the problem that the rough water filter is an important use machine of the ship in the prior art, when the ship is running in seawater, since a large amount of sea salt exists in the seawater, when the rough water filter filters the seawater for a long time, the sea salt in the seawater is accumulated on both sides of the filter plate, not only causes the blockage, but also the corrosiveness of the sea salt can corrode the filter plate, so that the filtering function of the filter plate is reduced, and the problem that the rough water filter is not fully filtered is caused.

[0006] To achieve the above object, the application provides the following technical scheme: a rough water filter based on a ship equipment and having an anti-corrosion function, comprising a mounting barrel, a water inlet pipe is fixedly connected to a right side wall of the mounting barrel, a drain pipe is fixedly connected to a left side wall of the mounting barrel, a filter screen is fixedly connected in the mounting barrel, the filter screen is arranged in an inclined manner, and a heating mechanism is arranged at a top end of the mounting barrel.

[0007] The heating mechanism comprises a heating plate, the heating plate is fixedly connected to the inner side wall of the installation barrel top end, a threaded rod is rotationally connected to the bottom end of the heating plate, a first baffle is fixedly connected to the bottom end of the threaded rod, the first baffle is rotationally connected to the inner side wall of the installation barrel, first through holes are arranged on the surface of the first baffle in an array, a second baffle is rotationally connected to the surface of the threaded rod, the second baffle is fixedly connected to the inner side wall of the installation barrel, second through holes are arranged on the surface of the second baffle in an array, a threaded plate is threadedly connected to the surface of the threaded rod, the threaded plate is slidingly connected to the inner side wall of the installation barrel, a first return spring is sleeved on the surface of the threaded rod, the two ends of the first return spring are fixedly connected to the bottom end of the heating plate and the top end of the threaded rod respectively, a connecting frame is fixedly connected to the bottom end of the threaded rod after penetrating through the first baffle, a sealing block is fixedly connected to the end of the connecting frame, the sealing block is sealed with the drain pipe port, and a self-locking mechanism is arranged on the side wall of the sealing block.

[0008] In operation, in the prior art, the coarse water filter is an important machine for ships, when the ship is running in seawater, a large amount of sea salt exists in the seawater, when the coarse water filter filters seawater for a long time, the sea salt in the seawater will accumulate on both sides of the filter plate, not only causing blockage, but also the corrosiveness of the sea salt will corrode the filter plate, thereby reducing the filtering function of the filter plate, leading to the problem of insufficient filtering of the coarse water filter, the technical scheme can solve the above problems, the specific operation is as follows: when the seawater flows into the installation barrel from the water inlet pipe at the left end, the seawater is filtered through the inclined filter screen, since the filter screen is arranged in an inclined manner, the filter residue generated after filtering falls into the bottom end of the installation barrel, since the sealing block is sealed at the drain pipe port, the filtered seawater flows into the top end of the second baffle through the first through hole and the second through hole, and presses the threaded rod, so that the threaded plate moves upward along the inner side wall of the installation barrel, while the first return spring is compressed, the threaded rod rotates, drives the first baffle to rotate, and the first through hole and the second through hole are dislocated, the seawater is sealed between the heating plate and the second baffle, and the seawater is heated by the heating plate, and when the threaded rod rotates, the sealing block is rotated through the connecting frame to be separated from the drain pipe, and the sealing block is fixed through the self-locking mechanism to ensure the stability of the first pressing plate, the first through hole and the second through hole are sealed, so that the seawater cannot flow out, and the remaining seawater is discharged through the drain pipe, when the drainage work is completed, the self-locking mechanism is automatically opened, under the action of the first return spring, the threaded plate moves downward, the threaded rod reversely rotates, the sealing block reseals the water inlet pipe, the first through hole and the second through hole are reconnected, and the heated seawater washes the filter screen, since the seawater is in a heated state, the sea salt adhering to the filter screen can be dissolved to separate from the surface of the filter screen, thereby avoiding the blockage of the filter screen by the sea salt and preventing the corrosion of the filter screen by the sea salt, thereby improving the filtering effect of the filter screen and prolonging the service life of the filter screen.

[0009] As a further scheme of the present application, the filter screen surface is provided with a cleaning mechanism, the cleaning mechanism comprises a rotating shaft, the rotating shaft is provided with a driving mechanism at the end, the rotating shaft is rotatably connected with the filter screen after penetrating through the filter screen, the surface of the rotating shaft is fixedly connected with a first cleaning plate in a symmetrical manner, the first cleaning plate is respectively close to the two surfaces of the filter screen, the cleaning plate is fixedly connected with a sliding rod, the end of the sliding rod is fixedly connected with a second cleaning plate, the surface of the sliding rod is sleeved with a second reset spring, and the two ends of the second reset spring are fixedly connected with the first cleaning plate and the second cleaning plate respectively; when the filter screen filters seawater, the sea salt is sticky on the filter screen, so that the seawater cannot be washed by the heated seawater, the rotating shaft is rotated under the action of the driving mechanism, so that the two first cleaning plates clean the two sides of the filter screen respectively, the sea salt is prevented from staying on the filter screen for a long time to form a sticky effect and block the filtering effect of the filter screen on seawater, and the heated seawater can be easily washed away after the filtering is completed, and the second cleaning plate can be contracted under the action of the second reset spring, so that the surface of the filter screen can be cleaned without dead angle, the cleaning effect is improved, and the filtering effect of the filter screen is increased.

[0010] As a further scheme of the present application, the self-locking mechanism comprises a connecting rod, a threaded groove and an annular groove are formed in the surface of the connecting rod, the threaded groove and the annular groove are communicated, a sliding block is slidably connected in the threaded groove, a connecting plate is fixedly connected to the top end of the sliding block, the connecting plate is fixedly connected to the side wall of the sealing block, a clamping ball is fixedly connected to the end of the connecting rod after penetrating through the connecting plate, a receiving groove is formed in the surface of the connecting plate corresponding to the position of the clamping ball, a clamping groove is formed in the inner side wall of the installation barrel, a first special-shaped gear and a connecting block are slidably connected to the surface of the connecting rod, a torsional spring is sleeved on the surface of the connecting rod, and the two ends of the torsional spring are fixedly connected to the connecting block and the connecting plate respectively; when the sealing block is rotated away from the drain pipe, the clamping ball moves to the clamping groove, the first special-shaped gear is rotated under the action of the driving mechanism, the torsional spring is compressed, the connecting rod drives the clamping ball to stretch out of the receiving groove and into the clamping groove under the action of the threaded groove and the sliding block, and self-locking is formed, so that the stability of the first pressing plate is ensured, seawater is prevented from flowing out, the position of the sealing block is stabilized, seawater is ensured to be stably discharged from the drain pipe, the driving mechanism stops working after the filtering work is completed, the clamping ball is separated from the clamping groove and reenters the receiving groove under the action of the torsional spring, then the sealing plate resets, and seawater is washed against the filter screen, so that seawater is prevented from flowing out, the stability and volume of seawater are reduced, and the problem that the sea salt on the filter screen cannot be washed and dissolved is solved.

[0011] As a further scheme of the present application, the driving mechanism comprises a rotating rod, a second special-shaped gear is fixed on the surface of the rotating rod, the surface of the rotating rod and the surface of the rotating shaft are jointly driven by a first belt, a motor is fixedly connected to the outer wall of the installation barrel, and the output shaft of the motor and the surface of the rotating shaft are jointly driven by a second belt; during operation, when the clamping ball moves to the position of the clamping groove, the first special-shaped gear and the second special-shaped gear are engaged, the rotating shaft is driven to rotate under the driving of the second belt, the rotating rod is driven to rotate under the driving of the first belt, and the second special-shaped gear is driven to rotate, so that the first special-shaped gear is driven to rotate, and power sources are provided for the self-locking mechanism and the cleaning mechanism.

[0012] As a further scheme of the present application, the end of the rotating shaft is fixedly connected with a vane, and the vane is located at the water inlet pipe; during operation, the vane is arranged to accelerate the flow of seawater into the water inlet pipe and then out of the water outlet pipe, thereby improving the working efficiency of the equipment.

[0013] As a further scheme of the present application, the surface of the threaded rod is fixedly connected with a spiral conveying vane; during operation, when the threaded rod rotates, the spiral conveying vane rotates, seawater is sucked or discharged, the impact force of seawater is improved, and the seawater can wash away the salt on the filter screen.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. The heating mechanism and the self-locking mechanism are arranged, after the water discharge work is completed, the self-locking mechanism is automatically opened, the threaded plate moves downward under the action of the first return spring, the threaded rod reversely rotates, the water inlet pipe is resealed by the sealing block, the first through hole and the second through hole are reconnected, the heated seawater washes the filter screen, the salt adhered to the filter screen can be dissolved under the condition that the seawater is heated, so as to separate from the surface of the filter screen, the salt is prevented from blocking the filter screen, the corrosion of the salt to the filter screen is prevented, the filtering effect of the filter screen is improved, and the service life of the filter screen is prolonged.

[0016] 2. The cleaning mechanism is arranged, the rotating shaft rotates under the action of the driving mechanism, so that the two first cleaning plates clean the two sides of the filter screen respectively, the salt is prevented from staying on the filter screen for a long time to form an adhesion effect and block the filtering effect of the filter screen on seawater, the heated seawater can be easily washed away after the filtering is completed, the second cleaning plate is arranged, and the second cleaning plate can be retracted under the action of the second return spring, so that the surface of the filter screen can be cleaned without dead angle, the cleaning effect is improved, and the filtering effect of the filter screen is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0018] Figure 1 It is a general structure schematic diagram in the present application.

[0019] Figure 2 It is a first cross-sectional view of the general structure in the present application.

[0020] Figure 3 It is Figure 2 It is an enlarged view of A in the present application.

[0021] Figure 4 It is a second cross-sectional view of the general structure in the present application.

[0022] Figure 5 It is a connection diagram of the self-locking mechanism in the present application.

[0023] Figure 6 It is a connection diagram of the first cleaning plate and the second cleaning plate in the present application.

[0024] Figure 7 It is a perspective view of the first baffle and the second baffle in the present application.

[0025] In the drawings, the components represented by each reference numeral are listed as follows:

[0026] Mounting barrel 1, water inlet pipe 2, drain pipe 3, filter screen 4, heating plate 5, threaded rod 6, first baffle 7, first through hole 8, second baffle 9, second through hole 10, connecting rod 11, threaded plate 12, first return spring 13, connecting frame 14, sealing block 15, rotating shaft 16, first cleaning plate 17, sliding rod 18, second cleaning plate 19, second return spring 20, threaded groove 21, annular groove 22, sliding block 23, connecting plate 24, clamping ball 25, storage groove 26, clamping groove 27, first special-shaped gear 28, connecting block 29, torsional spring 30, rotating rod 31, second special-shaped gear 32, first belt 33, motor 34, second belt 35, fan 36, spiral conveying blade 37. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort are within the scope of protection of the present application.

[0028] Please refer to Figures 1-7 The application provides a technical scheme: a ship equipment-based anti-corrosion coarse water filter, which comprises a mounting barrel 1, a water inlet pipe 2 is fixedly connected to the right side wall of the mounting barrel 1, a drain pipe 3 is fixedly connected to the left side wall of the mounting barrel 1, a filter screen 4 is fixedly connected in the mounting barrel 1, the filter screen 4 is arranged obliquely, and a heating mechanism is arranged at the top end of the mounting barrel 1.

[0029] The heating mechanism comprises a heating plate 5, the heating plate 5 is fixedly connected to the inner side wall at the top end of the mounting barrel 1, a threaded rod 6 is rotationally connected to the bottom end of the heating plate 5, a first baffle 7 is fixedly connected to the bottom end of the threaded rod 6, the first baffle 7 is rotationally connected to the inner side wall of the mounting barrel 1, a plurality of first through holes 8 are arrayed on the surface of the first baffle 7, a second baffle 9 is rotationally connected to the surface of the threaded rod 6, the second baffle 9 is fixedly connected to the inner side wall of the mounting barrel 1, a plurality of second through holes 10 are arrayed on the surface of the second baffle 9, a threaded plate 12 is threadedly connected to the surface of the threaded rod 6, the threaded plate 12 is slidingly connected to the inner side wall of the mounting barrel 1, a first reset spring 13 is sleeved on the surface of the threaded rod 6, the two ends of the first reset spring 13 are fixedly connected to the bottom end of the heating plate 5 and the top end of the threaded rod 6 respectively, a connecting frame 14 is fixedly connected to the bottom end of the threaded rod 6 after penetrating through the first baffle 7, a sealing block 15 is fixedly connected to the end of the connecting frame 14, the sealing block 15 is sealed with the mouth of the drain pipe 3, and a self-locking mechanism is arranged on the side wall of the sealing block 15.

[0030] In operation, in the prior art, the coarse water filter is an important machine for a ship, when the ship is running in seawater, a large amount of sea salt exists in the seawater, when the coarse water filter filters the seawater for a long time, the sea salt in the seawater will accumulate on both sides of the filter plate, not only causing blockage, but also the corrosive nature of the sea salt will corrode the filter plate, thereby reducing the filtering function of the filter plate, leading to the problem of insufficient filtering of the coarse water filter, the technical scheme can solve the above problems, the specific operation is as follows: when the seawater flows into the installation barrel 1 from the water inlet pipe 2 at the left end, the seawater is filtered through the inclined filter screen 4, since the filter screen 4 is arranged obliquely, the filter residue generated after filtering falls into the bottom end of the installation barrel 1, since the drainage pipe 3 port is sealed with a sealing block 15, the filtered seawater will flow into the top end of the second baffle 9 through the first through hole 8 and the second through hole 10, and extrude the threaded rod 6, so that the threaded plate 12 moves upward along the inner side wall of the installation barrel 1, while the first return spring 13 is compressed, the threaded rod 6 rotates, driving the first baffle 7 to rotate, so that the first through hole 8 and the second through hole 10 are misaligned, sealing the seawater between the heating plate 5 and the second baffle 9, and heating the seawater through the heating plate 5, and when the threaded rod 6 rotates, the sealing block 15 is rotated through the connecting frame 14 to be separated from the drainage pipe 3, and the sealing block 15 is fixed through the self-locking mechanism to ensure the stability of the first pressing plate, sealing the first through hole 8 and the second through hole 10, so that the seawater cannot flow out, and the remaining seawater is discharged through the drainage pipe 3, when the drainage work is completed, the self-locking mechanism is automatically opened, under the action of the first return spring 13, the threaded plate 12 moves downward, the threaded rod 6 reversely rotates, and the sealing block 15 re-seals the water inlet pipe 2, while the first through hole 8 and the second through hole 10 are re-connected, the heated seawater is washed against the filter screen 4, since the seawater is in a heated state, the sea salt adhering to the filter screen 4 can be dissolved, thereby separating from the surface of the filter screen 4, avoiding the blockage of the filter screen 4 by the sea salt, and preventing the corrosion of the filter screen 4 by the sea salt, thereby improving the filtering effect of the filter screen 4 and prolonging the service life of the filter screen 4.

[0031] As a further solution of the present invention, a cleaning mechanism is provided on the surface of the filter 4, and the cleaning mechanism includes a rotating shaft 16, and a driving mechanism is provided at the end of the rotating shaft 16. The rotating shaft 16 passes through the filter 4 and is rotatably connected to the filter 4. The surface of the rotating shaft 16 is symmetrically fixed with a first cleaning plate 17, and the first cleaning plate 17 is respectively in close contact with the two sides of the filter 4. A sliding rod 18 is fixedly connected inside the cleaning plate, and the ends of the sliding rod 18 are fixedly connected to the second cleaning plate 19. A second return spring 20 is sleeved on the surface of the sliding rod 18, and the two ends of the second return spring 20 are respectively fixedly connected to the first cleaning plate 17 and the second cleaning plate 19; when working, when the filter 4 filters seawater, due to the viscosity of sea salt, it will stick to the filter 4. The filter 4 cannot be flushed by the heated seawater at one time. By setting a cleaning mechanism, the rotating shaft 16 rotates under the action of the driving mechanism, thereby driving the two first cleaning plates 17 to clean the two sides of the filter 4 respectively, to prevent sea salt from staying on the filter 4 for a long time, forming an adhesion effect, thereby blocking the filter 4 from filtering the seawater. At the same time, it is convenient for the heated seawater to be easily flushed away after the filtration is completed. At the same time, by setting a second cleaning plate 19, it can be contracted under the action of the second return spring 20, thereby ensuring that the surface of the filter 4 can be cleaned without dead angles, improving the cleaning effect, and increasing the filtering effect of the filter 4.

[0032] As a further scheme of the present application, the self-locking mechanism comprises a connecting rod 11, a threaded groove 21 and an annular groove 22 are formed on the surface of the connecting rod 11 respectively, the threaded groove 21 and the annular groove 22 are communicated, a sliding block 23 is slidably connected in the threaded groove 21, a connecting plate 24 is fixedly connected to the top end of the sliding block 23, the connecting plate 24 is fixedly connected to the side wall of the sealing block 15, a clamping ball 25 is fixedly connected to the end of the connecting rod 11 after penetrating through the connecting plate 24, a receiving groove 26 is formed on the surface of the connecting plate 24 corresponding to the position of the clamping ball 25, a clamping groove 27 is formed on the inner side wall of the installation barrel 1, a first special-shaped gear 28 and a connecting block 29 are slidably connected to the surface of the connecting rod 11, a torsional spring 30 is sleeved on the surface of the connecting rod 11, and the two ends of the torsional spring 30 are fixedly connected to the connecting block 29 and the connecting plate 24 respectively; when the sealing block 15 is rotated to be separated from the drain pipe 3, the clamping ball 25 moves to the clamping groove 27, the first special-shaped gear 28 rotates under the action of the driving mechanism, the torsional spring 30 is compressed, the connecting rod 11 drives the clamping ball 25 to extend out of the receiving groove 26 and into the clamping groove 27 under the action of the threaded groove 21 and the sliding block 23, the self-locking is formed, the stability of the first pressing plate is ensured, the seawater is prevented from flowing out, the position of the sealing block 15 is stabilized, the seawater is prevented from flowing out, and the problem that the seawater cannot be fully washed and dissolved on the filter screen 4 is solved.

[0033] As a further scheme of the present application, the driving mechanism comprises a rotating rod 31, a second special-shaped gear 32 is fixedly connected to the surface of the rotating rod 31, the surface of the rotating rod 31 and the surface of the rotating shaft 16 are commonly driven by a first belt 33, a motor 34 is fixedly connected to the outer side wall of the installation barrel 1, and the output shaft of the motor 34 and the surface of the rotating shaft 16 are commonly driven by a second belt 35; when the clamping ball 25 moves to the position of the clamping groove 27, the first special-shaped gear 28 and the second special-shaped gear 32 are engaged, the rotating shaft 16 rotates under the driving action of the second belt 35, the rotating rod 31 rotates under the driving action of the first belt 33, and the second special-shaped gear 32 rotates, so that the first special-shaped gear 28 is driven to rotate, and power sources are provided for the self-locking mechanism and the cleaning mechanism.

[0034] As a further scheme of the present application, the end of the rotating shaft 16 is fixedly connected with a leaf fan 36, and the leaf fan 36 is located at the water inlet pipe 2; in operation, the seawater flows into the water inlet pipe 2 and is discharged from the drain pipe 3 through the leaf fan 36, and the working efficiency of the equipment is improved.

[0035] As a further scheme of the present application, the threaded rod 6 is fixedly connected with a spiral conveying blade 37; in operation, when the threaded rod 6 rotates, the spiral conveying blade 37 rotates, seawater is sucked or discharged, and the impact force of the seawater is increased, so that the seawater can wash the salt on the filter screen 4.

[0036] Working principle: when seawater flows into the installation barrel 1 from the water inlet pipe 2 at the left end, the seawater is filtered by the inclined filter screen 4; since the filter screen 4 is arranged in an inclined manner, the filter residue generated after the filtering falls into the bottom end of the installation barrel 1; since the drainage pipe 3 is sealed with the sealing block 15, the filtered seawater flows into the top end of the second baffle 9 through the first through hole 8 and the second through hole 10, and presses the threaded rod 6, so that the threaded plate 12 moves upward along the inner side wall of the installation barrel 1, the first return spring 13 is compressed at the same time, the threaded rod 6 rotates, the first baffle 7 rotates, the first through hole 8 and the second through hole 10 are dislocated, the seawater is sealed between the heating plate 5 and the second baffle 9, the seawater is heated by the heating plate 5, and when the threaded rod 6 rotates, the sealing block 15 is rotated by the connecting frame 14 to be separated from the drainage pipe 3, and the sealing block 15 is fixed by the self-locking mechanism to ensure the stability of the first pressing plate, the first through hole 8 and the second through hole 10 are sealed, so that the seawater cannot flow out, and the remaining seawater is discharged through the drainage pipe 3; when the drainage work is completed, the self-locking mechanism is automatically opened, the threaded plate 12 moves downward under the action of the first return spring 13, the threaded rod 6 reversely rotates, the sealing block 15 re-seals the water inlet pipe 2, the first through hole 8 and the second through hole 10 are re-connected, and the heated seawater washes the filter screen 4; since the seawater is in a heated state, the salt adhered to the filter screen 4 can be dissolved.

[0037] In the description of the present specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, nor limit the present application to the specific embodiments. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-corrosion coarse water filter based on ship equipment, comprising a mounting barrel (1), a water inlet pipe (2) fixedly connected to the right side wall of the mounting barrel (1), a drain pipe (3) fixedly connected to the left side wall of the mounting barrel (1), and a filter screen (4) fixedly connected inside the mounting barrel (1), characterized in that: The filter screen (4) is arranged obliquely, and the mounting barrel (1) is provided with a heating mechanism at the top end; The heating mechanism comprises a heating plate (5) fixedly connected to the inner side wall of the top end of the mounting barrel (1), a threaded rod (6) rotatably connected to the bottom end of the heating plate (5), a first baffle (7) fixedly connected to the bottom end of the threaded rod (6), the first baffle (7) being rotatably connected to the inner side wall of the mounting barrel (1), a plurality of first through holes (8) being arranged on the surface of the first baffle (7), a second baffle (9) being rotatably connected to the surface of the threaded rod (6), the second baffle (9) being fixedly connected to the inner side wall of the mounting barrel (1), a plurality of second through holes (10) being arranged on the surface of the second baffle (9), a threaded plate (12) being threadedly connected to the surface of the threaded rod (6), the threaded plate (12) being slidably connected to the inner side wall of the mounting barrel (1), a first return spring (13) being sleeved on the surface of the threaded rod (6), the two ends of the first return spring (13) being fixedly connected to the bottom end of the heating plate (5) and the top end of the threaded rod (6) respectively, a connecting frame (14) being fixedly connected to the bottom end of the threaded rod (6) after penetrating through the first baffle (7), a sealing block (15) being fixedly connected to the end of the connecting frame (14), the sealing block (15) being sealed with the opening of the drain pipe (3), and a self-locking mechanism being arranged on the side wall of the sealing block (15).

2. A marine equipment based anti-corrosive type coarse water filter as claimed in claim 1 wherein: The surface of the filter screen (4) is provided with a cleaning mechanism, the cleaning mechanism comprising a rotating shaft (16), the end of the rotating shaft (16) being provided with a driving mechanism, the rotating shaft (16) penetrating through the filter screen (4) and being rotatably connected to the filter screen (4), a first cleaning plate (17) being fixedly connected to the surface of the rotating shaft (16) in a symmetrical manner, the first cleaning plate (17) being tightly attached to the two surfaces of the filter screen (4) respectively, a sliding rod (18) being fixedly connected to the cleaning plate, a second cleaning plate (19) being fixedly connected to the end of the sliding rod (18), a second return spring (20) being sleeved on the surface of the sliding rod (18), the two ends of the second return spring (20) being fixedly connected to the first cleaning plate (17) and the second cleaning plate (19) respectively.

3. A marine equipment based anti-corrosive type coarse water filter as claimed in claim 1 wherein: The self-locking mechanism comprises a connecting rod (11), a threaded groove (21) and an annular groove (22) are respectively formed on the surface of the connecting rod (11), the threaded groove (21) and the annular groove (22) are communicated, a sliding block (23) is slidably connected in the threaded groove (21), a connecting plate (24) is fixedly connected to the top end of the sliding block (23), the connecting plate (24) is fixedly connected to the side wall of the sealing block (15), a clamping ball (25) is fixedly connected to the end of the connecting rod (11) penetrating through the connecting plate (24), a receiving groove (26) is formed on the surface of the connecting plate (24) corresponding to the position of the clamping ball (25), a clamping groove (27) is formed on the inner side wall of the installation barrel (1), a first special-shaped gear (28) and a connecting block (29) are slidably connected to the surface of the connecting rod (11), a torsional spring (30) is sleeved on the surface of the connecting rod (11), and the two ends of the torsional spring (30) are fixedly connected to the connecting block (29) and the connecting plate (24) respectively.

4. A marine equipment based anti-corrosive type coarse water filter as claimed in claim 2, wherein: The driving mechanism comprises a rotating rod (31), a second special-shaped gear (32) is fixedly connected to the surface of the rotating rod (31), the surface of the rotating rod (31) and the surface of the rotating shaft (16) are commonly driven by a first belt (33), a motor (34) is fixedly connected to the outer side wall of the installation barrel (1), and the output shaft of the motor (34) and the surface of the rotating shaft (16) are commonly driven by a second belt (35).

5. A marine equipment based anti-corrosive type coarse water filter as claimed in claim 4, wherein: The end of the rotating shaft (16) is fixedly connected with a leaf fan (36), and the leaf fan (36) is located at the water inlet pipe (2).

6. A marine equipment based anti-corrosive type coarse water filter as claimed in claim 1 wherein: The surface of the threaded rod (6) is fixedly connected with a spiral conveying blade (37).

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