CN220622116U - Marine high-pressure air compressor blowdown splash-proof device - Google Patents

Abstract

The utility model discloses a pollution discharge and splash prevention device of a marine high-pressure air compressor, which comprises a buffer tank body assembly, a tank body cover plate assembly, a fastening assembly and a time delay discharge assembly, wherein the tank body cover plate assembly is arranged at the top of the buffer tank body assembly, the tank body cover plate assembly is in sealing connection with the buffer tank body assembly and is detachably fastened and connected through the fastening assembly, and the time delay discharge assembly is arranged at the bottom of the buffer tank body assembly. According to the utility model, the pressure relief buffering process and the dirt relief process of the high-pressure relief object of the air compressor are separated, so that the problem of secondary splashing caused by the traditional pressure relief splash-proof device can be effectively solved. Meanwhile, the utility model can be disassembled and inspected, and is convenient for overhauling and maintenance after long-term use.

Description

Marine high-pressure air compressor blowdown splash-proof device

Technical Field

The utility model relates to a pollution discharge and splash prevention device of a high-pressure air compressor for a ship, and belongs to the field of ship guarantee system protection equipment.

Background

The compressed air system is an important ship pipeline system and is a convenient and reliable power source for storage. With the increasing size and complexity of ships, more and more mechanical devices in ship systems use compressed air as an energy source, such as: the compressed air is used for starting the engine, driving the whistle, the shutter, the pneumatic valve and the like. In order to reduce the volume of the compressed air storage device and meet the air supply pressure requirements of different users, a high-pressure air compressor is commonly used as an air supply source of a compressed air system of the large-sized ship, and the air supply pressure range is 10-20 MPa. The air compressor is mainly of a multi-stage compression and single-acting piston type structure type, has the functions of automatic discharging and timing discharging, and the sewage discharging device consists of a sewage collecting barrel, a sewage discharging pipeline and related valve members. In order to ensure the air supply quality of the compressed air, after the compressed air is subjected to liquid-gas separation, condensed water and oil stains are stored in an oil-water separator shell, and are discharged at regular time. Because the oil-water-gas mixture discharged by the high-pressure air compressor has higher pressure, if the oil-water-gas mixture is directly discharged to the bilge or the sewage well, splashing is very easy to occur, serious pollution is caused to surrounding equipment or cabin environment, and even a shipman is injured when the pressure is too high; if the hydraulic oil tank is discharged to a bilge water tank or an oil residue tank, short-time overpressure of the tank can cause structural deformation, and safety is affected.

The pressure relief buffering and the dirt discharging of the traditional pollution discharge anti-splashing device are simultaneously carried out, and although the discharged material of the middle-low air compressor has a certain pressure reduction buffering effect, the discharging effect of the high-pressure air compressor with the working pressure of 10-20 MPa is poor, the pressure of the outlet of the buffering device cannot be completely discharged, secondary splashing is easily caused, and the structure of the prior art is complex and inconvenient to maintain.

The inlet and the outlet of the discharged material in the prior art are in a space communication state, and when the high-pressure air compressor discharges sewage, although the high-pressure discharged material can be subjected to certain pressure reduction and buffering, the residual pressure is easily transmitted from the discharged material outlet, so that secondary splashing is caused.

Disclosure of Invention

The utility model aims to solve the technical problems that: how to improve the effect of high-pressure air compressor machine and release, avoid residual pressure to be passed from releasing the thing export easily, cause the secondary splash.

In order to solve the technical problems, the technical scheme of the utility model provides a sewage splashing prevention device of a marine high-pressure air compressor, which is characterized by comprising a buffer tank body assembly, a tank body cover plate assembly, a fastening assembly and a time delay discharging assembly, wherein the tank body cover plate assembly is arranged at the top of the buffer tank body assembly, the tank body cover plate assembly is in sealing connection with the buffer tank body assembly and is detachably fastened and connected through the fastening assembly, and the bottom of the buffer tank body assembly is provided with the time delay discharging assembly;

the buffer tank body component comprises a buffer tank and a first annular baffle plate, the first annular baffle plate is fixed on the inner wall of the buffer tank,

the tank cover plate component comprises a tank cover plate, a second annular baffle plate, a discharge inlet pipe and a ventilation bent pipe, the discharge inlet pipe and the ventilation bent pipe penetrate through the tank cover plate, the second annular baffle plate is arranged in the buffer tank and fixed on the outer wall of the discharge inlet pipe, the tank cover plate is covered on an opening at the top of the buffer tank in a sealing way,

the time-delay release component comprises a piston, a cylinder body and a spring, wherein the cylinder body penetrates through the bottom of the buffer tank, two ends of the cylinder body are communicated, the piston and the spring are arranged in the cylinder body, one end of the spring is connected with one end of the cylinder body, which is far away from a tank cover plate, the other end of the spring is connected with the piston, the periphery of the piston is in sealed sliding connection with the inner wall of the cylinder body,

one end of the discharge inlet pipe is communicated with a discharge port of the discharge pipe of the high-pressure air compressor, the other end of the discharge inlet pipe is opposite to a piston at one end of the cylinder body, and the other end of the cylinder body is communicated with a discharge pipeline on the ship; at least one first bleed hole is circumferentially arranged on the side wall of the cylinder body; when the spring is fully compressed, the piston fully covers all of the first bleed orifice.

Preferably, the second annular partition plate is positioned between the first annular partition plate and the tank cover plate, the second annular partition plate and the first annular partition plate are of annular structures, the outer wall of the discharge inlet pipe is fixedly and hermetically connected with the inner wall of the central hole of the second annular partition plate, and the outer wall of the first annular partition plate is fixedly and hermetically connected with the inner wall of the buffer tank; the diameter of the outer circle of the second annular partition plate is larger than the diameter of the central opening of the first annular partition plate.

Preferably, the fixed position of the first annular partition plate in the buffer tank is higher than the height of the other end of the discharge inlet pipe.

Preferably, the other end of the discharge inlet pipe is of a necking structure.

Preferably, the ratio of the area of the central opening of the first annular partition to the flow cross-sectional area of the bleed inlet is not less than 3 times.

Preferably, the flow cross-section of the discharge inlet pipe is not smaller than that of the discharge pipe of the high-pressure air compressor, and the ratio of the cross-section of the buffer tank to the flow cross-section of the discharge inlet pipe is not smaller than 15 times.

Preferably, the ventilation elbow has a flow cross-sectional area not less than 1.5 times the flow cross-sectional area of the bleed inlet.

Preferably, the sectional area of the cylinder body is not smaller than 2 times of the flow sectional area of the discharge inlet pipe and not more than 5 times of the flow sectional area of the discharge inlet pipe.

Preferably, the height of the first bleed hole on the side wall of the cylinder body is smaller than the sum of the thickness of the piston and the length of the spring after the spring is fully compressed; the length of the cylinder body positioned outside the buffer tank is smaller than the length of the spring after the spring is fully compressed, and one end of the spring connected with the piston after the spring is fully compressed is lower than the lowest position of the first discharge hole; the diameter of the first bleed orifice is less than the thickness of the piston.

Preferably, the maximum elastic force of the spring ensures that the high-pressure air discharged by the air compressor pushes the piston to the bottom of the buffer tank, and simultaneously ensures that the piston is restored to the initial position after the high-pressure air is discharged.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The device of the utility model leads the high-pressure oil, water and gas mixture discharged from the sewage outlet of the high-pressure air compressor into the cavity of the device for pressure reduction and buffering through the inlet pipeline of the device, and separates the gas from the mixed discharged mixture through the two-stage annular partition plate and discharges the gas through the ventilation bent pipe. When the high-pressure air compressor discharges, the piston of the time-delay discharge assembly can close the discharge outlet of the device, and when the high-pressure air compressor discharges, the piston returns to the original position, and the normal-pressure oil-water mixed discharge is naturally discharged from the discharge outlet by gravity, so that splash pollution can not be caused to the bilge and the bilge well, and the working intensity of a shipman is effectively reduced.

(2) The device separates the pressure relief buffering process and the dirt discharging process of the high-pressure discharged matter of the air compressor, and can effectively solve the problem of secondary splashing caused by the traditional pressure relief splash-proof device without manual operation.

(3) The device has simple structure and convenient installation, and the detachable part of the connecting and fastening assembly adopts the shoe-shaped gold ingot nut which is convenient to detach, so that the device can be detached and inspected efficiently and quickly, and is convenient for overhauling and maintenance after long-term use.

Drawings

FIG. 1 is a schematic structural view of a pollution discharge and splash prevention device of a marine high-pressure air compressor;

FIG. 2 is a top view of a marine high pressure air compressor blowdown splash guard;

FIG. 3 is an enlarged view of FIG. 1 at A;

fig. 4 is an enlarged view at B in fig. 1 (a state when the air compressor is not discharged);

fig. 5 is an enlarged view at B in fig. 1 (state at the time of air compressor bleed).

Detailed Description

In order to make the utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

The utility model provides a pollution discharge and splash prevention device of a high-pressure air compressor for a ship, which comprises a buffer tank body assembly 1, a tank body cover plate assembly 2, a fastening assembly 3, a delay discharge assembly 4 and a sealing gasket 5, wherein the tank body cover plate assembly 2 is arranged at the top of the buffer tank body assembly 1, the tank body cover plate assembly 2 and the buffer tank body assembly 1 are sealed through the sealing gasket 5 and are fastened and connected through the fastening assembly 3, and the delay discharge assembly 4 is arranged at the bottom of the buffer tank body assembly 1. The materials of the buffer tank body component 1 and the tank body cover board component 2 are preferably stainless steel materials. The sealing gasket 5 is preferably made of polytetrafluoroethylene coated gasket or non-asbestos aramid rubber gasket.

The buffer tank body assembly 1 is composed of a buffer tank 11, a first annular partition plate 12, a fastening lug 13 and a tank body seat plate 14. The top of the buffer tank 11 is provided with an opening, the outer periphery of the opening of the buffer tank 11 is fixedly connected with a tank body seat board 14, and bolt grooves matched with the fastening assembly 3 in position are uniformly distributed on the circumference of the tank body seat board 14; the bottom of the buffer tank 11 is provided with an opening, the opening of the buffer tank 11 is fixedly connected with the delay discharging component 4, the buffer tank 11 is internally provided with a first annular partition plate 12, and the first annular partition plate 12 is fixedly and hermetically connected with the inner wall of the buffer tank 11 and is used for preventing discharged materials from splashing; the outside of buffer vessel 11 upper portion is equipped with fastening ear seat 13, and fastening ear seat 13 and buffer vessel 11 outer wall fixed connection for mounting bolt pivot 33 to with jar body apron subassembly 2 fastening connection.

The tank cover plate assembly 2 consists of a tank cover plate 21, a second annular partition plate 22, a discharge inlet pipe 23, a first connecting flange 24 and a ventilation elbow pipe 25. Bolt grooves matched with the tank seat plate 14 on the buffer tank assembly 1 are uniformly distributed on the circumference of the tank cover plate 21 (the bolt grooves on the tank cover plate 21 are in one-to-one correspondence with the bolt grooves on the tank seat plate 14); the tank cover plate 21 is fixedly connected with a discharge inlet pipe 23 and a ventilation bent pipe 25 which penetrate through two sides of the tank cover plate 21 (namely, one side is positioned in the buffer tank 11, and the other side is positioned outside the buffer tank 11), one end of the discharge inlet pipe 23 is connected with a discharge port of a discharge pipe of the high-pressure air compressor through a first connection flange 24, the other end of the discharge inlet pipe is subjected to necking treatment, the flow rate of discharged materials is further increased, and the necking at the other end of the discharge inlet pipe 23 is opposite to the piston 41 so as to push the piston 41 to move downwards; the ventilation bent pipe 25 is used for discharging air after oil-water separation; a second annular baffle 22 is fixedly connected to the bleed inlet pipe 23 for further preventing splash of the bleed.

Wherein the second annular partition 22 is located above the first annular partition 12, i.e. the second annular partition 22 is located between the first annular partition 12 and the tank cover 21. The second annular partition plate 22 and the first annular partition plate 12 are of annular structures, the inner wall of the central hole of the second annular partition plate 22 is welded with the outer wall of the discharge inlet pipe 23, and the outer wall of the first annular partition plate 12 is welded with the inner wall of the buffer tank 11. The outer diameter of the second annular partition 22 is greater than the central opening diameter of the first annular partition 12.

The fixed position of the first annular partition plate 12 in the buffer tank 11 is higher than the height of the necking end of the discharge inlet pipe 23, and the ratio of the central opening area of the first annular partition plate 12 to the flow cross section area of the discharge inlet pipe 23 is not less than 3 times.

The flow cross section of the discharge inlet pipe 23 is not smaller than that of the discharge pipe of the high-pressure air compressor, and the ratio of the cross section of the buffer tank 11 to the flow cross section of the discharge inlet pipe 23 is not smaller than 15 times.

The ventilation elbow 25 has a cross-sectional flow area not less than 1.5 times the cross-sectional flow area of the bleed inlet 23.

As shown in fig. 3, the fastening assembly 3 is composed of a plurality of fastening nuts 31, a plurality of connecting bolts 32, and a plurality of bolt rotating shafts 33. One end of the connecting bolt 32 is connected to the buffer tank 11 through a bolt rotating shaft 33 and a fastening lug 13, and is uniformly distributed along the circumferential direction of the buffer tank 11; the other end of the connecting bolt 32 is fastened to the tank cover 21 by a fastening nut 31. Each connecting bolt 32 is inserted into a bolt slot on one can lid 21 and a corresponding bolt slot on can base 14. The fastening component 3 is used for connecting the buffer tank body component 1 and the tank body cover plate component 2, is convenient to disassemble and assemble during later maintenance, and the sealing gasket 5 is used for sealing between the buffer tank body group 1 and the tank body cover plate component 2. The tightening nut 31 is preferably a shoe-shaped gold ingot nut.

As shown in fig. 4, the time delay vent assembly 4 is comprised of a piston 41, a cylinder 42, a spring 43, a vent outlet tube 44, a second connecting flange 45. One end of the discharge outlet pipe 44 is connected to the bottom of the cylinder body 42 in a sealing manner, and the other end of the discharge outlet pipe 44 is connected with a ship discharge pipeline through a second connecting flange 45. The side wall of the cylinder body 42 is provided with a plurality of first discharge holes 421 which are uniformly distributed in the circumferential direction and communicated with the buffer tank 11, and the bottom of the cylinder body 42 is provided with a second discharge hole 422 communicated with the discharge outlet pipe 44; the piston 41 and the spring 43 are both arranged in the cylinder 42, one end of the spring 43 is connected with one end of the cylinder 42 close to the discharge outlet pipe 44 (or one end of the cylinder 42 far away from the tank cover plate 21), the other end of the spring 43 is connected with the piston 41, and the periphery of the piston 41 is in sealing sliding connection with the inner wall of the cylinder 42 (namely, clearance fit is adopted between the cylinder 42 and the piston 41). The first bleed hole 421 is provided at the bottom of the side wall of the cylinder 42, and when the spring 43 is fully compressed, the piston 41 can fully cover all the first bleed hole 421, i.e., when the piston 41 slides to the bottom of the cylinder 42, the first bleed hole 421 is closed, thereby blocking the passage between the cylinder 42 and the surge tank 11.

The cross-sectional area of the cylinder 42 is not less than 2 times the cross-sectional area of the bleed inlet 23 and not more than 5 times the cross-sectional area of the bleed inlet 23.

The height of the first bleed orifice 421 on the side wall of the cylinder 42 is less than the sum of the thickness of the piston 41 and the length of the spring 43 after full compression. And after the cylinder 42 is connected with the buffer tank 11, the length of the cylinder 42 outside the buffer tank 11 should be slightly smaller than the length of the spring 43 after being fully compressed, and one end of the connecting piston 41 after the spring 43 is fully compressed is lower than the lowest position of the first relief hole 421. The lowest point of the cylinder body 42 in the buffer tank 11 should be provided with 2 to 4 first bleed holes 421 uniformly distributed in the circumferential direction, and the diameter of the first bleed holes 421 should be smaller than the thickness of the piston 41, so as to ensure effective sealing of the piston 41 to the first bleed holes 421.

The maximum elastic force of the spring 43 should ensure that the high-pressure air discharged from the air compressor pushes the piston 41 to the bottom of the buffer tank 11, and at the same time, ensure that the piston 41 is restored to the original position after the high-pressure air is discharged.

The bleed outlet pipe 44 should have a cross-sectional flow area that is not less than the sum of the areas of all of the first bleed holes 421.

When the discharged matters of the air compressor are discharged at high speed through the shrinkage port at the tail end of the discharge inlet pipe 23, the piston 41 is pushed to move downwards to the bottom of the cylinder body 42, and the first discharge hole 421 and the second discharge hole 422 are closed, so that the high-pressure discharged matters can be prevented from being directly discharged by the discharge outlet pipe 44 to cause secondary splashing; after the high-pressure oil-water-gas mixed discharge material entering the buffer tank 11 is buffered by the inner cavity of the buffer tank 11 and is blocked by the first annular partition plate 12 and the second buffer partition plate 22 in sequence, gas is separated from the high-pressure mixed discharge material and then is discharged from the ventilation elbow pipe 25; when the air compressor is completely discharged, the piston 41 returns to the initial position under the action of the spring 43, and the oil-water mixture accumulated at the bottom of the buffer tank 11 smoothly enters the second discharge hole 422 from the first discharge hole 421 by gravity to be discharged from the discharge outlet pipe 44.

Claims (10)

1. The utility model provides a marine high-pressure air compressor blowdown splash guard which is characterized in that, including buffer tank body subassembly (1), jar body apron subassembly (2), fastening component (3), delay release subassembly (4), jar body apron subassembly (2) are located buffer tank body subassembly (1) top, jar body apron subassembly (2) and buffer tank body subassembly (1) sealing connection to through fastening component (3) detachable fastening connection, the bottom of buffer tank body subassembly (1) is equipped with delay release subassembly (4);

the buffer tank body assembly (1) comprises a buffer tank (11) and a first annular partition board (12), wherein the first annular partition board (12) is fixed on the inner wall of the buffer tank (11),

the tank cover plate component (2) comprises a tank cover plate (21), a second annular partition plate (22), a discharge inlet pipe (23) and a ventilation elbow pipe (25), wherein the discharge inlet pipe (23) and the ventilation elbow pipe (25) penetrate through the tank cover plate (21), the second annular partition plate (22) is arranged in the buffer tank (11) and fixed on the outer wall of the discharge inlet pipe (23), the tank cover plate (21) is covered on an opening at the top of the buffer tank (11) in a sealing way,

the time-delay discharging component (4) comprises a piston (41), a cylinder body (42) and a spring (43), wherein the cylinder body (42) penetrates through the bottom of the buffer tank (11), two ends of the cylinder body (42) are communicated, the piston (41) and the spring (43) are arranged in the cylinder body (42), one end of the spring (43) is connected with one end, far away from the tank cover plate (21), of the cylinder body (42), the other end of the spring (43) is connected with the piston (41), the periphery of the piston (41) is in sealed sliding connection with the inner wall of the cylinder body (42),

one end of the discharge inlet pipe (23) is communicated with a discharge port of the discharge pipe of the high-pressure air compressor, the other end of the discharge inlet pipe (23) is opposite to a piston (41) at one end of a cylinder body (42), and the other end of the cylinder body (42) is communicated with a ship discharge pipeline; at least one first discharge hole (421) is circumferentially arranged on the side wall of the cylinder body (42); when the spring (43) is fully compressed, the piston (41) fully covers all of the first bleed orifice (421).

2. The high-pressure air compressor blowdown and splash-proof device for the ship according to claim 1, wherein the second annular partition plate (22) is positioned between the first annular partition plate (12) and the tank cover plate (21), the second annular partition plate (22) and the first annular partition plate (12) are of annular structures, the outer wall of the discharge inlet pipe (23) is fixedly and hermetically connected with the inner wall of a central hole of the second annular partition plate (22), and the outer wall of the first annular partition plate (12) is fixedly and hermetically connected with the inner wall of the buffer tank (11); the outer diameter of the second annular partition (22) is larger than the diameter of the central opening of the first annular partition (12).

3. A blow-down splash guard for a high-pressure air compressor for a ship as claimed in claim 2, wherein the first annular partition (12) is fixed at a position higher than the other end of the discharge inlet pipe (23) in the buffer tank (11).

4. A drain splash-proof device for a high-pressure air compressor for a ship as claimed in claim 1 or 3, wherein the other end of the drain inlet pipe (23) is of a necking structure.

5. A marine high pressure air compressor blowdown splash guard as claimed in claim 2 wherein the ratio of the central open area of the first annular partition (12) to the cross-sectional flow area of the bleed inlet (23) is not less than 3.

6. The drain splash-proof device of the high-pressure air compressor for the ship according to claim 1, wherein the flow cross-section area of the drain inlet pipe (23) is not smaller than that of the drain pipe of the high-pressure air compressor, and the ratio of the cross-section area of the buffer tank (11) to the flow cross-section area of the drain inlet pipe (23) is not smaller than 15 times.

7. The splash-proof device for the sewage disposal of the high-pressure air compressor for the ship according to claim 1, wherein the flow cross section area of the ventilation elbow (25) is not smaller than 1.5 times that of the discharge inlet pipe (23).

8. A marine high pressure air compressor blowdown splash guard as claimed in claim 1 wherein the cross-sectional area of the cylinder (42) is no less than 2 times the cross-sectional area of the bleed inlet (23) and no more than 5 times the cross-sectional area of the bleed inlet (23).

9. The splash guard for the high-pressure air compressor for the ship according to claim 1, wherein the height of the first bleed hole (421) on the side wall of the cylinder body (42) is smaller than the sum of the thickness of the piston (41) and the length of the spring (43) after the spring is completely compressed; the length of the cylinder body (42) positioned outside the buffer tank (11) is smaller than the length of the spring (43) after being fully compressed, and one end of the connecting piston (41) is lower than the lowest position of the first relief hole (421) after the spring (43) is fully compressed; the diameter of the first bleed orifice (421) is smaller than the thickness of the piston (41).

10. The splash guard for the sewage disposal of the high-pressure air compressor for the ship according to claim 1, wherein the maximum elastic force of the spring (43) is used for ensuring that the high-pressure air discharged by the air compressor pushes the piston (41) to the bottom of the buffer tank (11) and simultaneously ensuring that the piston (41) is restored to the initial position after the high-pressure air is discharged.