CN101624087B - Anti-rolling tank control device - Google Patents

Abstract

The invention discloses a tank stabilizer control device, which mainly solves the technical problems of improving the pitch damping effects of ships and the like, and adopts the technical scheme that: a left throttling passage and a right throttling passage are arranged at the top parts of a larboard air chamber and a starboard air chamber of a U-shaped tank stabilizer, throttling components are arranged on the two passages, the two components are connected with a controller which is connected with a detector, detected ship swinging period signals are input to the controller, control signals are output to the two throttling components according to set rules, and the throttling components adjust effective sectional areas of the two throttling passages so as to realize the water level alternation period of the U-shaped tank stabilizer the same as the ship swinging period. The tank stabilizer control device is applied to various U-shaped tank stabilizers.

Description

Tank stabilizer control device

Technical field:

The present invention relates to a kind of control setup that reduces the equipment, particularly a kind of this equipment of ship rolling motion with transfer liquid.

Background technology:

Antirolling tank is one of device that reduces ship rolling, it is low than stabilizer that it has cost, can be in advantages such as any speed of a ship or plane played a role when (comprising zero speed of a ship or plane), be widely used in all kinds of ships and light boats more than 500 tonnes, the theoretical analysis achievement that principle is based on krylov-Bo Lageweixinsiji is shaken in subtracting of antirolling tank, its main points are, because the water tank roll damping ratio is less, the frequency-response data of the rolling motion amplification factor of ship presents bimodal, be equivalent to have two humorous swept frequency rates of master, if the wave disturbance frequency is near two humorous swept frequency rates of master, the effect of out-of-control passive U type water tank is the rolling that increases ship, when wave disturbance frequency and boats and ships from the swept frequency rate, when water level sweep frequency three equates in the water tank, ship rolling hysteresis disturbance force п/2 phase places, water oscillating hysteresis rolling п in the water tank/2 phase places, moment and distrubing moment opposite in sign that U type water tank produces, stabilizing efficiency the best of water tank, this shows, out-of-control U type antirolling tank is difficult to obtain desirable stabilizing efficiency, sometimes even can strengthen and wave.For obtaining preferable stabilizing efficiency, should on water tank, install control setup additional, this device can make the interior height of water period of change of water tank identical with the ship period of rolling as much as possible, and its phase place is to lag behind ship rolling phase place п/2, at this, the dealer has developed different water tank control setups, as Japanese STABILO company and JFE company, Britain ROLLS-ROYCE company etc., different product all is provided, and prior art can be divided into two big classes:

In hold 91 passages of U type water tank 9, be provided with valve, wherein with one valve 911 (as Fig. 6) control discharge, realization is to the control of water level alternating cycles and phase place, or with the multistage adjusting flow velocity of multistage valve 911 ' (as Fig. 8) realization, its concrete scheme is hold 91 to be cut apart form a plurality of parallel ports, each passage mounted valve is regulated the classification of discharge with the break-make combination realization of these valves;

Air chamber 92 in water column upper end, U type water tank 9 both sides is provided with connecting pipe, in this pipeline, be provided with valve, wherein control the flow velocity of water with the pressure of one valve 921 (as Fig. 7) control air chamber, realization is to the control of water level alternating cycles and phase place, or connect two side of a ship air chambers 92 to count parallel pipeline, multistage valve 921 ' (as Fig. 9) is installed on each pipeline respectively, is made up the classification that realizes discharge with the break-make of these valves 921 ' and regulate;

The major defect of above-mentioned prior art is, the alternating cycles of water can only be regulated and the cycle is reduced to the direction that increases, and is difficult to realize stepless continuous control.

Summary of the invention:

Technical matters to be solved by this invention is, a kind of improved tank stabilizer control device is provided, and it can be controlled and make in the water tank water level alternating cycles lengthening or shorten, and should the control stepless continuous, thereby obtains preferable stabilizing efficiency.

The technical scheme that the present invention solves the problems of the technologies described above employing is:

Tank stabilizer control device includes U type antirolling tank, detector and controller, be characterized in: at U type antirolling tank, detector and detecting device, be characterized in: on the left side of U type antirolling tank, the top of starboard air chamber is respectively arranged with a left side, right throttling passage, on this left side, be respectively arranged with a left side on the right throttling passage, right orifice union, this left side, right orifice union is connected with controller, this controller is connected with detector, the seel periodic signal input controller that this detector detects, this controller is pressed the functional relation output control signal of water level alternating cycles T in the U type water tank, this signal is through a left side, right orifice union is regulated a left side, the effective cross sectional area of right throttling passage is realized the water level alternating cycles of the U type antirolling tank identical with the seel cycle.

The present invention is on the left side of U type antirolling tank, in the starboard air chamber, feature with variable restrictor passage effective cross sectional area, its rule is when needs lengthening water level alternating cycles, regulate the effective cross sectional area that increases throttling passage, when needs shorten the water level alternating cycles, adjusting reduces the effective cross sectional area of throttling passage, its control is to finish continuously automatically, thereby realize that the water level alternating cycles of antirolling tank and seel cycle equate, obtain best stabilizing efficiency, device employing equipment is the market device, and cost increases few, be significant to improving the ship's navigation performance, be rich in market outlook.

Description of drawings:

Fig. 1 is a tank stabilizer control device structured flowchart of the present invention.

Fig. 2 is a tank stabilizer control device scheme drawing of the present invention.

Fig. 3 is a part-structure scheme drawing () among Fig. 1.

Fig. 4 is a part-structure scheme drawing (two) among Fig. 1.

Fig. 5 is a part-structure scheme drawing (three) among Fig. 1.

Fig. 6 is existing tank stabilizer control device scheme drawing ().

Fig. 7 is existing tank stabilizer control device scheme drawing (two).

Fig. 8 is existing tank stabilizer control device scheme drawing (three).

Fig. 9 is existing tank stabilizer control device scheme drawing (four).

The specific embodiment:

With reference to Fig. 1,2, tank stabilizer control device comprises U type antirolling tank 1, larboard air chamber 11, starboard air chamber 11 ', left orifice union 12, right orifice union 12 ', detector and controller.

U type antirolling tank 1, its structure is similar with prior art or identical, two topsides in the U type are formed with larboard air chamber 11 and starboard air chamber 11 ' respectively, and be sealing state, offer left throttling passage 110 and right throttling passage 110 ' (as Fig. 3,5) respectively at left and right air chamber 11,11 ' top, atmosphere is led on left and right throttling passage 110,110 ' top, i.e. left restriction 120 as shown in Fig. 3,5 and right restriction 120 ' can be provided with left orifice union 12 and right orifice union 12 ' on left and right throttling passage 110,110 '.

Left side orifice union 12 is to be installed in one of significant components on the left throttling passage 110, includes left flashboard 122, left slideway 123, left cylinder 124 and control cock 125, wherein:

Left side flashboard 122, the flashboard structure of its structure and existing gate valve is same or similar, left side flashboard 122 can be positioned at the top of left throttling passage 110, also can be located at the middle part of this passage, left side flashboard 122 is to be laid on the left slideway 123, and can be in the guiding lower slider of left slideway 123, left flashboard 122 is to be connected on the piston of left cylinder 124.

Left side cylinder 124, its structure and prior art are same or similar, and left cylinder 124 is to be installed in larboard air chamber 11 tops, or is installed on the matrix of left throttling passage 110, is equipped with left control cock 125 on the left cylinder 124;

Left side control cock 125, can be an electric airshed apportioning valve, electricity one flow quantity apportioning valve or other similar valve members, in order to accept the command signal of self-controller, make left cylinder 124 actions, thereby drive left flashboard 122 and do corresponding displacement,, promptly change the size (as Fig. 3) of restriction 120 opening to change the effective cross sectional area of air flows in the left throttling passage 110.

Right orifice union 12 ' is the significant components that is installed on the right throttling passage 110 ', includes right flashboard 122 ', right slideway 123 ', right cylinder 124 ' and control cock 125 ', and the 26S Proteasome Structure and Function of right orifice union 12 ' is identical with above-mentioned left orifice union 12.

In U type antirolling tank 1, an orifice union can only be set on the air chamber of a topside, be provided with a left throttling passage 110 as top at the larboard air chamber 11 of U type antirolling tank 1, this left side throttling passage 110 is provided with a left orifice union 12; Or being provided with a right throttling passage 110 ' at the top of the starboard air chamber 11 ' of U type antirolling tank 1, this right side throttling passage 110 ' is provided with a right orifice union 12 '.

Left and right orifice union 12,12 ' can adopt another technical scheme, wherein:

Left side orifice union 12 includes left-hand rotation leaf 126, left-hand rotation moving axis hole 127, left electric notor 128 and control cock 125, the rotating vane structure of the structure of left-hand rotation leaf 126 and existing butterfly valve is identical, left-hand rotation leaf 126 is the runners that are arranged in left throttling passage 110, and its rotating vane axle is extended through left-hand rotation moving axis hole 127 and is connected with left electric notor 128; Left side electric notor 128 structures and prior art are same or similar, and left electric notor 128 is to be installed on the matrix of left throttling passage 110, is equipped with left control cock 125 on the left electric notor 128;

Right orifice union 12 ' includes right-hand rotation leaf 126 ', right-hand rotation moving axis hole 127 ', right electric notor 128 ' and control cock 125, and the 26S Proteasome Structure and Function of right orifice union 12 ' is identical with above-mentioned left orifice union 12 correspondences;

Adopt left and right electric notor 128,128 ' to be the left and right rotating vane 126 of power driven, 126 ' rotation, change the effective cross sectional area of left and right throttling passage 110,110 ' middle air flows, as shown in Figure 5.

Detector is the equipment that detects the Ship Swaying cycle, can utilize existing market product, and detector can pass to controller with actual measurement gained signal.

Controller can adopt the PAC series of Siemens S7-300/400 series, great lattice or the APC series control machine of APLEX etc. in the present invention, and the setting rule of controller is:

In the research process of U type antirolling tank, the inventor obtains very valuable achievement---and the gentle indoor air flows state of water level alternating cycles is closely related in the U type antirolling tank, and sets up following functional relation:

$T=2\mathrm{\π}\sqrt{\frac{\mathrm{\ρL}}{2\mathrm{\ρg}+a_r\left(S_r\right)-a_l\left(S_l\right)}}$

Water level alternating cycles in T in the formula---the U type water tank

Gas density in ρ---the left and right air chamber of U type water tank

G---acceleration due to gravity

a _l, a _r---left and right side of a ship linear coefficient

s _l, s _r---the effective cross sectional area of left and right throttling passage gas flow

By formula as can be known, regulate left and right side of a ship air chamber 11,11 ' left and right throttling passage 110, the effective cross sectional area of 110 ' gas flow, just can obtain water level alternating cycles in the corresponding U type water tank 1, when two sectional areas reduce, the water level alternating cycles shortens, when two sectional areas increased, water level alternating cycles lengthening was T when the ship rolling cycle ₁The time, press following formula, change s _l, s _rThe time gained T be

T＝T ₁

U type antirolling tank 1 can obtain best stabilizing efficiency at this moment.

The technical scheme that the present invention is new according to above-mentioned rules cue, its operational process is: detector extracts T ₁The value input controller, the rule (functional relation) that controller is set by following formula is imported left and right control cock 125,125 ' with respective signal, left and right control cock 125, the left and right cylinder 124 of 125 ' control, 124 ' (or electric notor 128,128 ') drive left and right flashboard 122,122 ' (or left and right rotating vane 126,126 '), and the left and right throttling passage 110 of Gai Bianing, the effective cross sectional area of 110 ' gas flow be able to make T=T thus ₁Thereby, obtain best stabilizing efficiency.

Claims (3)

1. tank stabilizer control device, include U type antirolling tank, detector and controller, it is characterized in that: on the left side of U type antirolling tank (1), starboard air chamber (11,11 ') top is respectively arranged with a left side, right throttling passage (110,110 '), on this left side, right throttling passage (110,110 ') be respectively arranged with a left side on, right orifice union (12,12 '), this left side, right orifice union (12,12 ') be connected with controller, this controller is connected with detector, the seel periodic signal input controller that this detector detects, this controller is pressed the functional relation output control signal of water level alternating cycles T in the U type water tank, this signal is through a left side, right orifice union (12,12 ') regulate a left side, right throttling passage (110,110 ') effective cross sectional area is realized the water level alternating cycles of the U type antirolling tank (1) identical with the Ship Swaying cycle.

2. tank stabilizer control device according to claim 1, it is characterized in that left and right orifice union (12,12 ') includes left and right flashboard (122,122 '), left and right slideway (123,123 ') and left and right cylinder (124,124 '), left and right flashboard (122,122 ') the left and right slideway (123,123 ') that is laid in respectively, left and right flashboard (122,122 ') is connected with left and right cylinder (124,124 ') respectively, and left and right cylinder disposes left and right control cock (125,125 ') on (124,124 ').

3. tank stabilizer control device according to claim 1, it is characterized in that a left side, right orifice union (12,12 ') include a left side, right-hand rotation leaf (126,126 '), a left side, right-hand rotation moving axis hole (127,127 ') and a left side, right electric notor (128,128 '), a left side, right-hand rotation leaf (126,126 ') left side that is laid in respectively, right throttling passage (110,110 ') in, a left side, right-hand rotation leaf (126,126 ') rotating shaft is extended through a left side, right-hand rotation moving axis hole (127,127 ') and be connected with a left side, right electric notor (128,128 ') a, left side, right electric notor (128,128 ') dispose a left side on, right control cock (125,125 ').

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