CN208616166U - A kind of empty cabin water seal regulator of FPSO isolation - Google Patents

Abstract

The utility model relates to a kind of FPSO, and empty cabin water seal regulator is isolated.It includes: outer barrel, inner cylinder, vent valve and water injection pipe that empty cabin water seal regulator, which is isolated, in the FPSO of the utility model, the outer barrel includes cylindrical water storage cylinder and cover, air inlet is opened up in the middle part of the side wall of the water storage cylinder, the cover is fastened in the top end surface of the water storage cylinder by connector fastening；The inner cylinder is through the cover and is tightly sleeved on the cover, and the vent valve is connected on the inner cylinder, offers through-hole in the bottom end face of the inner cylinder；The outer barrel is through the deck that empty cabin is isolated, and the air inlet is located in the empty cabin of the isolation, and it is empty out of my cabin that the vent valve is located at the isolation.Empty cabin water seal regulator, which is isolated, in FPSO described in the utility model has the advantages that simple structure, safety and stability, at low cost, arrangement occupy little space.

Description

A kind of empty cabin water seal regulator of FPSO isolation

Technical field

The utility model relates to ship equipments, and empty cabin water seal regulator is isolated more particularly to a kind of FPSO.

Background technique

FPSO (Floating Production Storage and Offloading), i.e. floating type production, storage and offloading dress It sets, preparatory processing can be carried out to crude oil and stores, referred to as " offshore oil factory ".FPSO is collection oil vapor treatment, storage, life Living, power generation, heat stations and crude oil exporting in the extremely complex process units of one, while requirement can at sea work continuously 20~ It places under repair without drydocking within 25 years.Must have according to several existing code requirements of main classification society, FPSO in the world Double ship side structures, to prevent Marine Pollution after FPSO breakage.According to classification society rule and MARPOL pact, (world prevents ship from causing Pollute pact) requirement, for prevent collide and cause crude oil leakage to cause marine environmental pollution, and may cause breakage and Explosion danger, all crude oil tanks of FPSO, slop tank, oil processing process tank and production water tank area should all be arranged the empty cabin of isolation into Row protection.

And these cabins lead to cabin internal pressure superpressure or negative pressure, such as crude oil oiling because of interior extraneous environmental change When cabin temperature increase, lead to that empty cabin superpressure is isolated, empty cabin temperature is isolated during crude oil tank edible vegetable oil to be reduced, and empty cabin is isolated Negative pressure, FPSO is frequently stored and oiling operation, and empty cabin is isolated and is easy to appear alternate superpressure or negative pressure, eventually leads to cabin Constructional variant influences FPSO operational safety.To prevent such situation from occurring, the usually corresponding sky cabin that is isolated needs to be arranged four sets of explosions Diaphragm apparatus, wherein three sets for preventing cabin vacuum, it is a set of for preventing cabin superpressure, and bursting diaphragm device is needed by special Industry manufacturer provides, and meets FPSO and the rupture disk and its component vendor period length, somewhat expensive that empty cabin requires is isolated, less economical, And FPSO is isolated that empty cabin headspace is limited, and four sets bursting diaphragm devices, which are arranged, will occupy limited space originally, to designing and Construction brings very big difficulty.

Utility model content

Based on this, the purpose of the utility model is to provide a kind of FPSO, and empty cabin water seal regulator is isolated, and has knot Structure advantage simple and easy to maintain.

A kind of empty cabin water seal regulator of FPSO isolation, including outer barrel, inner cylinder, vent valve and water injection pipe, it is described Outer barrel includes that cylindrical water storage cylinder and cover, the side wall of the water storage cylinder open up air inlet, and the cover passes through connection Part fastening is fastened in the top end surface of the water storage cylinder；The inner cylinder is through the cover and is tightly sleeved in the cover On, it is connected with the vent valve in the top end surface of the inner cylinder, offers through-hole in the bottom of the inner cylinder, and lead to It crosses the through-hole and is connected to the inner cylinder and the outer barrel；The water injection pipe penetrates through the cover and extends to the outer barrel Bottom is socketed with sealing shroud on the end in the outside positioned at the outer barrel of the water injection pipe；The air inlet is higher than institute State the bottom end face of inner cylinder.

Empty cabin water seal regulator is isolated in FPSO described in the utility model, passes through the change of the pressure of outer barrel and inner cylinder Change, the variation of the liquid level of outer barrel and inner cylinder is influenced, to realize the adjusting of pressure difference.Bottom end face of the air inlet compared with inner cylinder It is higher by a distance, so that one section of liquid level can be stored in outer barrel, and this liquid level is higher than the bottom end face of inner cylinder, and is formed Water seal.The empty cabin water seal regulator of this FPSO isolation can effectively adjust the pressure at air inlet and at vent valve, and pass through liquid level Variation come the pressure balance that both adjusts.

Further, a water space is formed between the inner wall of the outer barrel and the outer wall of the inner cylinder.The water storage The size in space is set according to actual cabin situation, and enough water spaces are capable of providing enough pressure regulating powers.

It further, further include sealing ring, which is arranged in the junction between the water storage cylinder and the cover.

It further, further include liquid level ruler, which is placed in the water injection pipe.Liquid level ruler is for measuring outer barrel Interior liquid level, and the variation of liquid level is further looked at, when liquid level is lower, it is necessary to the water filling in outer barrel, to guarantee liquid level Stabilization.

Further, empty cabin water seal regulator is isolated in this FPSO to be placed in the empty cabin of isolation, the outer barrel by every Deck from empty cabin is divided into cabin inner part and out of my cabin part, and the air inlet is located at the cabin inner part, the vent valve position In the part out of my cabin.When empty cabin water seal regulator is isolated for it is empty can effectively to adjust isolation when empty cabin is isolated in this FPSO Pressure balance inside and outside cabin, to guarantee the safety that empty cabin is isolated.

Bursting diaphragm device compared to the prior art, it is simple, safe that empty cabin water seal regulator structure is isolated in this FPSO Stable, at low cost, arrangement occupies little space, easy to operate.

In order to better understand and implement, according to the present invention will be described in detail below with reference to the accompanying drawings.

Detailed description of the invention

Fig. 1 is the structure principle chart that empty cabin water seal regulator is isolated in the FPSO of the utility model；

Fig. 2 is the schematic perspective view that empty cabin water seal regulator is isolated in the FPSO of the utility model.

Specific embodiment

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", " hard straight ", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two More than a.

Such as Fig. 1 and Fig. 2, empty cabin water seal regulator, including outer barrel 10, inner cylinder is isolated in a kind of FPSO of the utility model Body 20, vent valve 40 and water injection pipe 30, the outer barrel 10 include cylindrical water storage cylinder 11 and cover 12, the water storage The side wall of cylinder 11 opens up air inlet 13, and the cover 12 is fastened on the top end surface of the water storage cylinder 11 by connector fastening On；The inner cylinder 20 is through the cover 12 and is tightly sleeved on the cover 12, in the top end of the inner cylinder 20 It is provided with vent valve 40 on face, offers through-hole in the bottom of the inner cylinder 20, and the inner cylinder is connected to by the through-hole 20 and the outer barrel 10；The water injection pipe 30 penetrates through the cover 12 and extends to the bottom of the outer barrel 10, described Sealing shroud is socketed on the end in the outside positioned at the outer barrel 10 of water injection pipe 30；The inner wall of the outer barrel 10 and described A water space is formed between the outer wall of inner cylinder 20, the storage capacity of the water space is bigger, can bear bigger pressure. The air inlet 13 is higher than the bottom end face of the inner cylinder 20.

It is isolated in empty cabin water seal regulator in this FPSO, bottom end face the hanging down to the bottom of air inlet 13 of inner cylinder 20 Directly distance h, vertical range h are that the maximum pressure that the cabin in the empty cabin 50 of isolation can bear and vacuum degree, vertical range h are got over Greatly, the maximum pressure and vacuum degree that expression cabin can bear are also bigger.

It further includes sealing ring that empty cabin water seal regulator, which is isolated, in this FPSO, which is arranged in the water storage cylinder 11 and institute State the junction between cover 12；It further include liquid level ruler, which is placed in the water injection pipe 30.

The outer barrel 10 is through the deck that empty cabin 50 is isolated, and the air inlet 13 is located in the empty cabin 50 of the isolation, The vent valve 40 is located at outside the empty cabin 50 of the isolation.

The working principle of empty cabin water seal regulator is isolated in the FPSO:

The sealing shroud on water injection pipe 30 is opened, is then filled the water in outer barrel 10 by water injection pipe 30, it, will after the completion of water filling Sealing shroud is locked on water injection pipe 30.When empty cabin 50 is isolated by external influence, the cabin pressure that empty cabin 50 is isolated is increased Or reduce, the variation of the pressure acts on the water in outer barrel 10 by the air inlet 13 of outer barrel 10, then acts on inner cylinder The water of body 20 and the variation for causing the water level of outer barrel 10 and inner cylinder 20, and then balance the pressure of cabin interior.When in cabin The pressure in portion is greater than critical value, and air pressure causes the hydraulic pressure in outer barrel 10 to enter in inner cylinder 20, and the water level decreasing of outer barrel 10 is interior The water level of cylinder 20 rises, and when 20 superpressure of inner cylinder, is discharged by vent valve 40, to keep cabin interior and extraneous pressure Balance；Conversely, outside air enters from vent valve 40, and finally from air inlet when the indoor pressure in cabin is less than ambient pressure 13 enter in cabin, to realize the pressure balance inside and outside cabin.

Empty cabin water seal regulator is isolated compared to linker in the FPSO of the utility model, has some differences below. Its locating naval air environment feature of FPSO and inland atmosphere have significant difference, and all facilities must comprehensively consider space hold And reliability, it is different from existing linker application field that empty cabin water seal regulator is isolated in this FPSO, and solves the problems, such as follows: 1) existing linker is arranged in the external world, this FPSO is isolated empty cabin water seal regulator main body and is arranged in inside the empty cabin 50 of isolation, and Small part structure, which is exposed, is being isolated outside empty cabin 50, occupies little space；2) it is isolated inside empty cabin water seal regulator by this FPSO Water seal, empty cabin 50 can will effectively be isolated and be isolated with marine atmosphere (high salinity, high humility), cabin interior metal knot is isolated in reduction Structure corrosion；3) it can guarantee cabin internal pressure balance, avoid frequently storing because of FPSO and oiling operation, crude storage cabin temperature Variation leads to that the case where empty cabin 50 is easy to appear alternate superpressure or negative pressure, avoids cabin structure modification is isolated.

This FPSO is isolated empty cabin water seal regulator and is necessarily provided with water injection pipe 30, because are as follows: 1) water injection pipe 30 is with outer The function of the level measuring of cylinder 10；2) there is the possibility of evaporation in the water inside outer barrel 10, need to inspect periodically moisturizing, independent Water injection pipe 30 facilitate regular job.

The 50 regulator Successful utilization of isolation sky cabin of the utility model improves FPSO previous in more large size FPSO Mesh is isolated empty 50 protective device somewhat expensive of cabin, the situation of the big daily maintenance difficulty of occupied space, the FPSO of the utility model every It is conventional material from material selected by empty cabin water seal regulator, production is simple, and construction is easy, and daily maintenance is easy, Empty cabin 50 is isolated in the FPSO for being applicable to various specifications.

This FPSO is isolated empty cabin water seal regulator and had not only been able to satisfy the function of cabin protection, but also can reduce cost of equipment, also The occupancy in space is reduced, and reduces maintenance difficulties.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.

Claims (4)

1. empty cabin water seal regulator is isolated in a kind of FPSO, it is characterised in that: including outer barrel, inner cylinder, vent valve and note Water pipe, the outer barrel include that cylindrical water storage cylinder and cover, the side wall of the water storage cylinder open up air inlet, the cover It is fastened in the top end surface of the water storage cylinder by connector fastening；The inner cylinder is through the cover and is tightly sleeved On the cover, it is connected with the vent valve in the top end surface of the inner cylinder, is offered in the bottom of the inner cylinder Through-hole, and the inner cylinder and the outer barrel are connected to by the through-hole；The water injection pipe penetrates through the cover and extends to institute The bottom for stating outer barrel is socketed with sealing shroud on the end in the outside positioned at the outer barrel of the water injection pipe；It is described into Port is higher than the bottom end face of the inner cylinder.

2. empty cabin water seal regulator is isolated in FPSO according to claim 1, it is characterised in that: the inner wall of the outer barrel A water space is formed between the outer wall of the inner cylinder.

3. empty cabin water seal regulator is isolated in FPSO according to claim 2, it is characterised in that: it further include sealing ring, it should The junction between the water storage cylinder and the cover is arranged in sealing ring.

4. empty cabin water seal regulator is isolated in FPSO according to claim 3, it is characterised in that: it further include liquid level ruler, it should Liquid level ruler is placed in the water injection pipe.