CN202848430U - Cement tank air inlet device for ship without filter cloth - Google Patents

Abstract

The utility model relates to a cement tank air inlet device for a ship without a filter cloth. The cement tank air inlet device for the ship without the filter cloth comprises cement tank cavity-divided air chambers and air inlet pipes, wherein the cement tank cavity-divided air chambers are separated by clapboards and the air inlet pipes are arranged inside the cavity-divided air chambers. A remote pressure sensor is arranged inside each cement tank cavity-divided air chamber, and a flow automatic regulating valve and a flow meter are arranged on each air inlet pipe. According to the cement tank air inlet device for the ship without the filter cloth, a grating and the filter cloth are not used inside each cavity-divided air chamber, and a silk net pipe is additionally installed at the tail end of each air inlet pipe. A reinforcing rib is arranged inside each silk net pipe, and a support framework is arranged on the periphery of each silk net pipe. According to the cement tank air inlet device for the ship without the filter cloth, the silk net pipe technology is adopted to replace an air inflation structure of the gratings and the filter cloths adopted by an existing cement tank. The necessary match working situation of the gratings and the air chambers is changed, the maintenance of the filter cloths is canceled, the service life of a filter device is prolonged, the working strength of an operator is relieved, and the working efficiency is improved. The cement tank air inlet device for the ship without the filter cloth is suitable for conveying of cement tank powdery materials for a single-cavity herringbone sliding plate type ship, a multi-cavity slant panel type ship and a single-cavity external cone slant panel type ship between a conveying workboat and an offshore platform.

Description

No filter-fabric cement canister incoming gas peculiar to vessel device

One, technical field

The utility model relates to the air inlet system in the loose unpacked material peculiar to vessel system.

Two, background technology

Existing ship mainly is comprised of several parts such as cementing tank peculiar to vessel, material pipeline, propulsions source with the loose unpacked material system.Cementing tank peculiar to vessel generally is comprised of end socket, cylindrical shell, admission line, bleeder line, discharging pipeline, pressurising pipeline and remote pressure sensor, safety valve, compression indicator etc.Lower in working order, require granular material in tank, to flow, be filled with high pressure draft at pot bottom, wadding dress material in the tank is evenly distributed and flow at high speed, flow to pot bottom center-point lowest part under the Action of Gravity Field of material self, the entrance of discharging pipeline is arranged on bottom position usually, at the bottom of material drops to tank near the time, extracted out outside the tank by the discharging pipeline, be delivered to offshore work platform.Thereby realize remote, free of losses, at a high speed, efficient material transferring.Cementing tank peculiar to vessel mainly plays the effect of metered flow in whole system, to fully the blowing under the state of stirring of material, by the measurement to tank internal pressure and discharging piping flow, calculate the output of loose unpacked material.

At present; for making material Uniform Flow in tank, being unlikely to condense affects measurement accuracy, usually adopts to be filled with high pressure air and to stir at the bottom of tank; for air-flow is evenly distributed; usually can adopt minute mode of chamber air inlet, be about to low head and be divided into 9 ~ 12 air chambers, adopt many mouthfuls of air inlets; above air chamber, adopt the fluid canvas as filter cloth; because filter cloth intensity is relatively poor, and need to consider can not barrier air pass through, therefore can not be simple pass through to increase filter cloth density and thickness raising filter cloth intensity.Usually can below the fluid canvas, place flase floor as support, so as not to because of solid accumulation or when changing filter cloth operator's weight destroy the sealing property of filter cloth.Material is flow at high speed in tank, the loading line entrance have a larger impact, and the friction that material high-speed flows and produces is seriously influencing the service life of canvas and the leak tightness at filter cloth edge.For guaranteeing the normal operation of repair ship, the filter cloth of having to often change.Because filter cloth is installed complicated, usually structure is in the boring of filter cloth periphery, all needs up and down to place a sealing joint strip at filter cloth, superincumbent sealing joint strip top, also to place a metal platen guaranteeing the even distribution of bolt thrust, a quadrant is set as support under the sealing joint strip below the filter cloth.Between stay bearing plate, sealing joint strip, filter cloth and pressing plate, adopt a large amount of bolts to connect, to guarantee the leak tightness in chamber of whole each minute, if the grid edge leaks, will disperse the pressure gas stream by filter cloth, reduce pressure, affect result of use.In the manufacturing process of cementing tank, the time that filter cloth is installed accounts for more than 1/3 of whole manufacturing cycle usually, and before filter cloth is installed, requirement is to clearing up in the tank, and in the Practical manufacturing process, because after grid installs, still need will be repeatedly dismounting, therefore be difficult to guarantee the cleaning in the tank.Grid is when installing, and owing to tank body seals, and the operational space is narrow and small in tank, and environment is abominable, and operator's labour intensity is very large.After equipment was installed aboard ship, the space was little in the tank, can't use weight-lifting equipment, only can adopt manually-operated mode to load and unload grid, because the volume of grid is larger, can't put into cementing tank by the manhole of cementing tank, need to before the tank body sealing grid be put into tank.Because grid can't be changed, and the applying working condition of cementing tank has determined that grid very easily weares and teares.So in the manufacturing process of cementing tank, grid anticorrosion had specific (special) requirements.Every group of grid weight is about about 80Kg, and every cementing tank has 9 ~ 12 groups of grids usually, and gross weight is about 700 ~ 1000Kg, and not only manufacturing process is complicated, even for service personnel, each installation consumes one's strength huge, inefficiency.And change the grid filter cloth at every turn, need dismounting, fastening thousands of nuts, owing to usually adopt the all-metal jam nut in the cementing tank, Reusability easily causes the damage of double-screw bolt screw thread, and the double-screw bolt that cooperates with jam nut is weld bolt, adopt the mode of welding to be welded on the stay bearing plate, can't change.Therefore, present structural shape can't guarantee to change the sealing effectiveness at filter cloth edge behind the filter cloth.Abominable operating environment, the hard work amount both can't guarantee the service efficiency of repair ship, the result of use after also can't guaranteeing to change.

Three, summary of the invention

The purpose of this utility model provides a kind of no filter-fabric cement canister incoming gas peculiar to vessel device, is convenient to the operation of service personnel, simplifies the maintenance of air inflator system, reduces time and the expense that cementing tank consumes of safeguarding, reduces the labour intensity of service personnel.

The technical solution adopted in the utility model is: no filter-fabric cement canister incoming gas peculiar to vessel device comprises the air inlet pipe in the cementing tank minute cavity gas chamber that become by baffle for separating and each minute cavity gas chamber, in cementing tank minute cavity gas chamber, the remote pressure sensor is housed, at air inlet pipe motor valve and flow counter are housed, the utility model without grid and filter cloth, but installs wire mesh tube additional at the air inlet pipe end in each minute cavity gas chamber.In wire mesh tube inside reinforced rib is set, support frame is set around wire mesh tube.

Adopt wire mesh tube as distribution device in gas-fluid, cancelled supportive grid, reduce the difficulty of cementing tank in manufacturing process, reduced Fabrication procedure, shortened the manufacturing cycle, reduced purchase cost and labour cost.The mode that the utility model adopts no filter-fabric all to press has been cancelled the grid assembly of existing cementing tank.Adopt wire mesh tube all to press, and the replacing of wire mesh tube is very simple, between wire mesh tube and air inlet pipe, adopts threaded connection to connect, when wire mesh tube need to be changed, the operator only needed to back out old wire mesh tube, and the new wire mesh tube of changing same size gets final product.Wire mesh tube adopts stainless steel material to make, and this has determined again to be higher than greatly traditional filter cloth the service life of wire mesh tube, has prolonged greatly the service intervals cycle of air inflator system.The filter cloth of cancellation cementing tank can reduce the manufacture difficulty of cementing tank, reduces production costs, and has shortened the manufacturing cycle of cementing tank.Owing to cancelled grid, weight of equipment is descended simultaneously, satisfied the requirement of equipment on board to weight, improved economy and the comformability of product, changed the situation that is difficult to keep in repair after the grid damage.

The utility model adopts the wire mesh tube technology, substitutes the inflatable structure that the grid that adopts in the existing cementing tank adds filter cloth, changes the situation that grid and air chamber must be joined work, the cancellation filter cloth is safeguarded, prolong filtering installation service life, alleviate operator's working strength, increase work efficiency.The utility model is applicable to single chamber herringbone slide type, multi-cavity ramp type and single chamber outer cone ramp type cementing tank granular material peculiar to vessel in the transmission of carrying between workboat and offshore platform.

Four, description of drawings

Fig. 1 is bottom configuration scheme drawing of the present utility model;

Fig. 2 is that the utility model is brought gas coil pipe cementing tank wire mesh tube arrangement plan into;

Fig. 3 is the utility model multi-pipeline pressurising cementing tank wire mesh tube arrangement plan;

Fig. 4 is the structural representation of the utility model wire mesh tube;

Fig. 5 is the lateral plan of Fig. 3.

Five, the specific embodiment

No filter-fabric cement canister incoming gas peculiar to vessel device comprises the air inlet pipe 3 in the cementing tank minute cavity gas chamber that is separated into by dividing plate 1 and each minute cavity gas chamber, in cementing tank minute cavity gas chamber, remote pressure sensor 5 is housed, at air inlet pipe 3 motor valve 4 and flow counter 6 are housed, filter cloth, grid, stay bearing plate, pressing plate and the sealing joint strip of the utility model existing inflation of cancellation grid in each minute cavity gas chamber, install wire mesh tube 2 additional at air inlet pipe 3 ends, realize the equal pressure request of cementing tank pressurising pipeline.Cementing tank loading line peculiar to vessel of the present utility model can according to the difference of pressurising pipeline at the bottom of the tank, adopt different arrangements.With the cementing tank of the outer pressurising coil pipe of tank, each minute the pressure source in chamber be independently, can adopt the structure of monofilament webmaster, at each air chamber an independently wire mesh tube is set.For the cementing tank that adopts the multi-pipeline pressurising, can as required, adopt the structure of the tree-shaped distribution of wire mesh tube.Utilize wire mesh tube that high pressure draft is evenly distributed, adopt pipe collar to be connected between wire mesh tube and admission line, to satisfy the quick-replaceable requirement of wire mesh tube, after the wire mesh tube wearing and tearing, only need be backed out wire mesh tube, change new wire mesh tube and get final product.In wire mesh tube inside, increase the quantity of reinforced rib 7, around wire mesh tube, should suitably arrange support frame, to improve its intensity, prolong the service life of wire mesh tube.For the gap of wire mesh tube, should calculate separately according to the diameter of tank body and the charge flow rate of equipment, guarantee high pressure draft can well-distributed simultaneously, guarantee that its flow can satisfy the requirement of system.Working process of the present utility model is: opens solenoid valve, open admission line, and high pressure draft enters loading line, after through coil pipe outside the tank, enter the admission port on the tank body low head, behind adapter, pipe collar, enter wire mesh tube, quadratic distribution by wire mesh tube enters in the tank uniformly.At this moment, material scatters in tank by the inlet point at tank body top, relies on the gravity fall of self.The high pressure draft that flows out by the tank base wire mesh tube purges the material that is deposited on tank base, and it is cotton-shaped swimming in the tank body that the stirring by high pressure draft makes mixing of materials, and uniform-flow is to pot bottom center nadir.When opening the discharging pipeline, material is by the past offshore platform of discharging Pipeline transport.

Claims (2)

1. no filter-fabric cement canister incoming gas peculiar to vessel device, comprise the air inlet pipe (3) in the cementing tank minute cavity gas chamber that is separated into by dividing plate (1) and each minute cavity gas chamber, remote pressure sensor (5) is housed in cementing tank minute cavity gas chamber, at air inlet pipe (3) motor valve (4) and flow counter (6) are housed, it is characterized in that: the utility model without grid and filter cloth, but installs wire mesh tube (2) additional at air inlet pipe (3) end in each minute cavity gas chamber.

2. no filter-fabric according to claim 1 cement canister incoming gas peculiar to vessel device is characterized in that: in wire mesh tube (2) inside reinforced rib (7) is set, in wire mesh tube (2) support frame is set on every side.

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