CN113182242A - Shunting turntable of deepwater net cage netting cleaning equipment and grading rotating speed adjusting method thereof - Google Patents
Shunting turntable of deepwater net cage netting cleaning equipment and grading rotating speed adjusting method thereof Download PDFInfo
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- CN113182242A CN113182242A CN202110332798.XA CN202110332798A CN113182242A CN 113182242 A CN113182242 A CN 113182242A CN 202110332798 A CN202110332798 A CN 202110332798A CN 113182242 A CN113182242 A CN 113182242A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 178
- 238000009434 installation Methods 0.000 claims description 45
- 238000005507 spraying Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 241000196171 Hydrodictyon reticulatum Species 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 description 3
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- 239000012530 fluid Substances 0.000 description 2
- 241000238586 Cirripedia Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241001245601 Perna viridis Species 0.000 description 1
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- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention discloses a shunt rotating disc of deepwater net cage netting cleaning equipment and a graded rotating speed adjusting method thereofΩThe rotating speed of the rotating disc is automatically rotated, so that the grading rotating speed control of the diverting disc is accurately realized under the conditions that the high-pressure water supply pressure is fixed and an additional auxiliary speed regulating mechanism is not needed, and therefore, the proper target stable rotating speed can be set for the net cage culture fouling organism attachment types of the deepwater net cage required to be cleaned in different sea areas or different culture stagesΩTo configure the best rotating speed for the shunt rotating disc during the netting cleaningThe cleaning efficiency and the removal rate of fouling organisms of the deepwater net cage netting are improved; the invention can ensure the smooth rotation of the shunting rotary table and stabilize the shunting rotary table at a stable rotating speed close to the preset targetΩThe rotating speed of the deep water net cage is reduced, so that the cleaning efficiency of the deep water net cage and the removal rate of fouling organisms are improved.
Description
Technical Field
The invention relates to a deepwater net cage netting cleaning device, in particular to a shunting turntable of the deepwater net cage netting cleaning device and a grading rotating speed adjusting method thereof.
Background
Deep water cage culture is a main mode for culturing marine fishes in China. The accumulation of fouling organisms in the net cover of the deep-water net cage blocks the meshes, the exchange of water bodies inside and outside the deep-water net cage is blocked, and the breeding of germs and the damage to water quality are induced when the accumulation is serious, and even the cultured organisms die in a large area. Meanwhile, the distribution characteristics, distribution rules and the like of netting fouling organisms are greatly different according to different sea areas, sea area terrain differences and the like, for example, the fouling organisms of the deepwater net cage in the Guangdong Zhuhai Guishan island are mainly hard shells such as perna viridis and barnacles, the soil adhesion is mainly used in the deepwater net cage culture sea area in Guangdong Yangjiang, and the fouling organisms of the netting of the deepwater net cage in the northern sea area are mainly algae. The underwater netting cleaning equipment is an important engineering means for solving the problem of the attachment of netting fouling organisms, and higher requirements are put forward on performance parameters of the netting cleaning equipment due to the fouling organisms and the difference of attachment degrees. The netting cleaning equipment forms high-speed jet flow through a shunting turntable and a high-pressure nozzle by high-pressure flow provided by a high-pressure pump station, and the falling of fouling organisms is realized by utilizing the impact force of the jet flow. Meanwhile, the diversion turntable integrally moves in a translation or curve manner along with the cleaning equipment in the rotation process, so that when the rotation speed of the diversion turntable is too low, the net surface of the cleaning equipment passing through the area does not have the high-speed jet effect, and the stained organisms on the net surface are not completely removed; when the rotating speed of the shunting rotating disc is too high, the fouling organisms on the net surface do not reach enough high-pressure jet flow acting time, so that the problem of poor fouling organism removing effect is caused.
Disclosure of Invention
One of the technical problems to be solved by the invention is as follows: provides a shunt turntable of deepwater net cage netting cleaning equipment.
The technical scheme adopted by the invention is as follows:
a shunt turntable of deepwater net cage netting cleaning equipment is provided with a disc-shaped turntable body; the method is characterized in that:
the circular front surface of the turntable body is provided with n groups of water outlet groups, wherein n is more than or equal to 3, each water outlet group comprises m water outlets which are arranged at intervals along the extension line of the water outlet group, and m is more than or equal to 2; the extension lines of the water outlet groups are uniformly arranged around the axis of the turntable body at intervals, and each extension line is the radius of the circular front surface; the m water outlets of each water outlet group are respectively positioned on m concentric circles with different radiuses on the circular front surface;
the water outlet is a connecting port capable of being provided with a high-pressure nozzle or a plug, and the water spraying direction of the high-pressure nozzle is along the axis of the water outlet where the high-pressure nozzle is located; the axis of the water outlet is vertical to the extension line of the water outlet group where the water outlet is located, and forms an included angle with the round front face, wherein the included angle is alpha, alpha is more than or equal to 30 degrees and less than or equal to 60 degrees, and the axes of the water outlets contained in the water outlet groups of each group are rotationally symmetrical around the axis of the turntable body;
the round back of the turntable body is provided with a water inlet coaxial with the turntable body; the inside of carousel body is equipped with the runner structure, the water inlet passes through this runner structure intercommunication each the delivery port.
Therefore, the use mode of the flow dividing rotary disc is as follows: the water inlet of the shunting turntable is rotatably arranged on a high-pressure water supply port of the deepwater net cage netting cleaning equipment through a hollow rotating shaft, a plurality of water outlets of the shunting turntable are provided with high-pressure nozzles, and plugs are arranged on the other water outlets, so that high-pressure water flow output by the high-pressure water supply port is sprayed out after passing through the shunting turntable and the high-pressure nozzles, the generated jet reaction force forms driving torque to drive the shunting turntable to rotate, the deepwater net cage netting is cleaned by high-pressure jet, and the rotating speed of the shunting turntable can be adjusted in a grading manner only by adjusting the installation position of the high-pressure nozzle on the shunting turntable without an additional auxiliary speed adjusting mechanism or an additional device; therefore, the shunting rotary table has the advantages of simple structure, capability of realizing multi-stage rotation speed adjustment, simplicity and convenience in operation and low cost.
Preferably: the water outlet consists of a groove and an internal threaded hole, the groove is arranged on the circular front surface of the turntable body, the internal threaded hole is communicated with the groove and the flow passage structure, and the axis of the internal threaded hole is the axis of the water outlet; the high-pressure nozzle and the plug are connected in a threaded connection mode on the internal thread hole and can be accommodated in the groove so as to reduce resistance to rotation of the shunting turntable.
Preferably: the runner structure corresponds every a set the delivery port group is equipped with a runner, each runner all extends along its extension line that corresponds delivery port group, the water inlet passes through the m delivery ports that this runner of runner intercommunication corresponds delivery port group to make the runner structure all has in the carousel body distribution, does not influence the rotation balance nature of reposition of redundant personnel carousel.
Preferably: the angle alpha of the included angle is 45 degrees.
The m water outlets can be uniformly arranged at intervals or non-uniformly arranged at intervals along the extension line of the water outlet group where the m water outlets are located.
As a preferred embodiment of the present invention: each water outlet group is symmetrically provided with m reverse water outlets (not shown in the figure) along the extension line corresponding to the m water outlets contained in the water outlet group.
Therefore, the high-pressure nozzle is selectively arranged at the water outlet or the reverse water outlet, so that the flow dividing rotary disc can be controlled to rotate forwards or reversely.
The second technical problem to be solved by the invention is as follows: a method for hierarchical speed regulation is provided.
The technical scheme adopted by the invention is as follows:
a method for adjusting the graded rotating speed is characterized in that: the shunt rotating disc is suitable for the deepwater net cage netting cleaning equipment;
the method comprises the following steps:
step one, when the deepwater net cage netting is cleaned, a water inlet of the shunting rotary disc is rotatably arranged on a high-pressure water supply port of deepwater net cage netting cleaning equipment through a hollow rotary shaft; one end of the hollow rotating shaft is fixedly connected with the shunting rotating disc, the other end of the hollow rotating shaft is in rotating fit with a high-pressure water supply port of the deepwater net cage netting cleaning equipment, and the high-pressure water supply port of the deepwater net cage netting cleaning equipment is communicated with a water inlet of the shunting rotating disc through the hollow rotating shaft.
Step two, setting a target stable rotating speed omega of the shunting turntable, wherein the unit is rad/s, and calculating the target nozzle installation radius and the value R according to the following formulan：
Wherein Q is an output flow rate of the high pressure water supply port, R is a radius of the turntable body, and M is0The friction resistance moment of the shunting turntable and the hollow rotating shaft is shown, P is the water pressure at the water inlet of the turntable body, and alpha is the angle value of the included angle; wherein M is0The size of the flow-dividing rotary table is related to the rotating speed of the flow-dividing rotary table, the internal friction resistance of the cleaning equipment, the fluid viscosity and the like, and can be obtained by actually measuring the flow-dividing rotary table.
Thirdly, the radius of the m concentric circles and the target nozzle installation radius sum value RnComparing;
for the case that the diversion rotary disc is provided with even groups of the water outlet groups, namely n is an even number:
if the radius of n times of the same concentric circle is closest to RnRecording the concentric circle as an installation concentric circle, installing n high-pressure nozzles on n water outlets on the installation concentric circle, and installing the plugs on the rest water outlets on the turntable body;
for example: the flow dividing rotary table shown in fig. 1 is provided with four sets of the water outlet groups, and four high-pressure nozzles are mounted at four water outlets on a mounting concentric circle.
If n/2 times the sum of the radii of two of said concentric circles is closest to RnRecording the two concentric circles as a first installation concentric circle and a second installation concentric circle, alternately installing the n high-pressure nozzles on water outlets on the first installation concentric circle and the second installation concentric circle along the circumferential direction of the turntable body, and installing the plugs on the rest water outlets on the turntable body;
for example: the flow dividing rotary table shown in fig. 3 is provided with four sets of water outlet groups, two high-pressure nozzles are symmetrically arranged on two water outlets on a first installation concentric circle, and the other two high-pressure nozzles are symmetrically arranged on two water outlets on a second installation concentric circle.
For the case that the diversion rotary table is provided with odd groups of the water outlet groups, that is, n is an odd number:
n is the nearest to RnThe concentric circles are marked as installation concentric circles, n high-pressure nozzles are installed at n water outlets on the installation concentric circles, and the plugs are installed at the rest water outlets on the turntable body.
For example: the flow dividing rotary disc shown in fig. 3 is provided with three sets of the water outlet sets, and three high-pressure nozzles are mounted at three water outlets on a mounting concentric circle.
Therefore, after the deepwater net cage netting cleaning equipment is started, the shunting turntable can stably rotate at the rotating speed close to the target stable rotating speed omega after the starting stage.
Therefore, the stepped rotating speed adjusting method can enable the shunting turntable to stably rotate at a rotating speed close to the preset target stable rotating speed omega through the steps from the first step to the third step, and realize that the stepped rotating speed control is accurately carried out on the shunting turntable under the conditions that the high-pressure water supply pressure is fixed and no additional auxiliary speed regulating mechanism is needed, so that the proper target stable rotating speed omega can be set aiming at the net cage culture fouling organism attachment types of the deepwater net cage required to be cleaned in different sea areas or different culture stages, the optimal rotating speed is configured for the shunting turntable when the net cage is cleaned, and the cleaning efficiency and the fouling organism removal rate of the deepwater net cage are improved;
in any case, namely no matter n is even or odd, no matter n is installed on the installation concentric circle or alternately installed on the first installation concentric circle and the second installation concentric circle, the n high-pressure nozzles are symmetrically arranged on the shunting rotary table, so that the shunting rotary table cannot be subjected to overturning moment to increase the rotating friction force, and the rotating smoothness of the shunting rotary table is ensured;
in conclusion, the stepped rotating speed adjusting method can ensure the smoothness of the rotation of the shunting turntable, and can ensure that the shunting turntable stably rotates at a rotating speed close to the preset target stable rotating speed omega, so as to improve the cleaning efficiency of the deepwater net cage and the removal rate of fouling organisms.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the water inlet of the shunting rotary table is rotatably arranged on a high-pressure water supply port of deepwater net cage netting cleaning equipment through a hollow rotary shaft, the high-pressure nozzles are arranged on a plurality of water outlets of the shunting rotary table, and the plugs are arranged on the rest water outlets, so that high-pressure water flow output by the high-pressure water supply port can be sprayed out after passing through the shunting rotary table and the high-pressure nozzles, the generated jet reaction force forms driving torque to drive the shunting rotary table to rotate, the deepwater net cage netting can be cleaned by high-pressure jet, and the rotating speed of the shunting rotary table can be adjusted in a grading manner only by adjusting the installation position of the high-pressure nozzles on the shunting rotary table without an additional auxiliary speed adjusting mechanism; therefore, the shunting rotary table has the advantages of simple structure, capability of realizing multi-stage rotation speed adjustment, simplicity and convenience in operation and low cost.
Secondly, the stepped rotating speed adjusting method can enable the shunting turntable to stably rotate at a rotating speed close to a preset target stable rotating speed omega through the steps from the first step to the third step, so that the stepped rotating speed control of the shunting turntable is accurately performed under the conditions that the high-pressure water supply pressure is fixed and an additional auxiliary speed regulating mechanism is not needed, and therefore, the proper target stable rotating speed omega can be set aiming at the net cage culture fouling organism attachment types of the deepwater net cage required to be cleaned in different sea areas or different culture stages, the optimal rotating speed is configured for the shunting turntable when the net cage is cleaned, and the cleaning efficiency and the fouling organism removal rate of the deepwater net cage are improved;
in any case, namely no matter n is even or odd, no matter n is installed on the installation concentric circle or alternately installed on the first installation concentric circle and the second installation concentric circle, the n high-pressure nozzles are symmetrically arranged on the shunting rotary table, so that the shunting rotary table cannot be subjected to overturning moment to increase the rotating friction force, and the rotating smoothness of the shunting rotary table is ensured;
in conclusion, the stepped rotating speed adjusting method can ensure the smoothness of the rotation of the shunting turntable, and can ensure that the shunting turntable stably rotates at a rotating speed close to the preset target stable rotating speed omega, so as to improve the cleaning efficiency of the deepwater net cage and the removal rate of fouling organisms.
Thirdly, the water outlet formed by the groove and the internal thread hole is adopted in the shunting rotary table, so that the resistance applied to the shunting rotary table during rotation can be reduced.
Drawings
The invention is described in further detail below with reference to the following figures and specific examples:
FIG. 1 is a schematic structural view of a flow distribution turntable provided with even number of water outlet groups, wherein n high-pressure nozzles are located on the same concentric circle;
FIG. 2 is a schematic structural view of the diverter disc according to the present invention with a perspective effect;
FIG. 3 is a schematic structural view of a diverter table with even number of water outlet sets according to the present invention, wherein n high pressure nozzles are located in two concentric circles with different radii; (ii) a
FIG. 4 is a schematic structural view of the diverter disc with odd number of water outlet sets according to the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the inventive concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without inventive efforts by those skilled in the art will fall within the scope of the present invention without departing from the inventive concept of the present invention.
Example one
As shown in fig. 1 to 4, the invention discloses a shunt turntable of deepwater net cage netting cleaning equipment, which is provided with a disc-shaped turntable body 1; the method is characterized in that:
the round front surface 1-1 of the turntable body 1 is provided with n groups of water outlet groups, wherein n is more than or equal to 3, each water outlet group comprises m water outlets 1b which are arranged at intervals along the extension line 1-1a of the water outlet group, and m is more than or equal to 2; extension lines 1-1a of the water outlet groups of each group are uniformly arranged at intervals around the axis of the turntable body 1, and each extension line 1-1a is the radius of the round front surface 1-1; the m water outlets 1b of each water outlet group are respectively positioned on m concentric circles 1-1b with different radiuses on the circular front surface 1-1;
the water outlet 1b is a connecting port capable of being provided with a high-pressure nozzle 2 or a plug 3, and the water spraying direction of the high-pressure nozzle 2 is along the axis 1bA of the water outlet 1b where the high-pressure nozzle is located; the axis 1bA of the water outlet 1b is vertical to the extension line 1-1a of the water outlet group where the water outlet 1b is located, and forms an included angle with the round front surface 1-1, wherein the included angle is alpha, alpha is more than or equal to 30 degrees and less than or equal to 60 degrees, and the axis 1bA of the water outlet 1b contained in each water outlet group is rotationally symmetrical around the axis of the turntable body 1;
moreover, a water inlet 1a coaxial with the circular back surface 1-2 of the turntable body 1 is arranged on the circular back surface 1-2 of the turntable body; the inside of carousel body 1 is equipped with the runner structure, water inlet 1a communicates each through this runner structure delivery port 1 b.
Therefore, the use mode of the flow dividing rotary disc is as follows: the water inlet 1a of the shunting turntable is rotatably arranged on a high-pressure water supply port of the deepwater net cage netting cleaning equipment through a hollow rotating shaft, the high-pressure nozzles 2 are arranged on a plurality of water outlets 1b of the shunting turntable, and the plugs 3 are arranged on the rest water outlets 1b, so that high-pressure water flow output by the high-pressure water supply port is sprayed out after passing through the shunting turntable and the high-pressure nozzles 2, the generated jet reaction force forms driving torque to drive the shunting turntable to rotate, the deepwater net cage netting is cleaned by high-pressure jet, and the rotating speed of the shunting turntable can be adjusted in a grading manner only by adjusting the installation position of the high-pressure nozzle 2 on the shunting turntable without an additional auxiliary speed adjusting mechanism or an additional device; therefore, the shunting rotary table has the advantages of simple structure, capability of realizing multi-stage rotation speed adjustment, simplicity and convenience in operation and low cost.
The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:
preferably: the water outlet 1b consists of a groove 1b1 and an internal thread hole 1b2, the groove 1b1 is arranged on the circular front surface 1-1 of the turntable body 1, the internal thread hole 1b2 is communicated with the groove 1b1 and the flow passage structure, and the axis of the internal thread hole 1b2 is the axis 1bA of the water outlet 1 b; when the high-pressure nozzle 2 and the plug 3 are connected to the internal thread hole 1b2 in a threaded connection mode, the high-pressure nozzle and the plug can be accommodated in the groove 1b1, so that resistance to rotation of the flow dividing rotary table is reduced.
Preferably: the runner structure is provided with a runner 1c corresponding to each group of the water outlet groups, each runner 1c extends along the extension line 1-1a of the corresponding water outlet group, and the water inlet 1a is communicated with m water outlets 1b of the corresponding water outlet group of the runner 1c through the runner 1c, so that the runner structures are distributed in the turntable body 1, and the rotation balance of the flow dividing turntable is not influenced.
Preferably: the angle alpha of the included angle is 45 degrees.
The m water outlets 1b may be uniformly spaced or non-uniformly spaced along the extension line 1-1a of the water outlet group in which the m water outlets are located.
Example two
On the basis of the first embodiment, the second embodiment also adopts the following preferred embodiments:
each water outlet group is symmetrically provided with m reverse water outlets (not shown in the figure) along the extension line 1-1a corresponding to the m water outlets 1b contained in the water outlet group.
Therefore, the high-pressure nozzle 2 is selectively arranged at the water outlet 1b or the reverse water outlet, so that the forward or reverse rotation of the flow dividing rotary disc can be controlled.
EXAMPLE III
The invention also discloses a graded rotating speed adjusting method, which is suitable for the shunt turntable of the deepwater net cage and netting cleaning equipment in the first embodiment or the second embodiment;
the method comprises the following steps:
step one, when the deepwater net cage netting is cleaned, the water inlet 1a of the shunting rotary disc is rotatably arranged on a high-pressure water supply port of deepwater net cage netting cleaning equipment through a hollow rotary shaft; so that one end of the hollow rotating shaft is fixedly connected with the shunting rotating disc, the other end of the hollow rotating shaft is in rotating fit with a high-pressure water supply port of the deepwater net cage netting cleaning equipment, and the high-pressure water supply port of the deepwater net cage netting cleaning equipment is communicated with the water inlet 1a of the shunting rotating disc through the hollow rotating shaft.
Step two, setting a target stable rotating speed omega of the shunting turntable, wherein the unit is rad/s, and calculating the target nozzle installation radius and the value R according to the following formulan：
Wherein Q is an output flow rate of the high pressure water supply port, R is a radius of the turntable body 1, and M is0The friction resistance of the shunting rotary disc and the hollow rotating shaftThe moment P is the water pressure at the water inlet 1a of the turntable body 1, and alpha is the angle value of the included angle; wherein M is0The size of the flow-dividing rotary table is related to the rotating speed of the flow-dividing rotary table, the internal friction resistance of the cleaning equipment, the fluid viscosity and the like, and can be obtained by actually measuring the flow-dividing rotary table.
Step three, the radius of the m concentric circles 1-1b and the target nozzle installation radius sum value RnComparing;
for the case that the diversion rotary disc is provided with even groups of the water outlet groups, namely n is an even number:
if the radius of n times of the same concentric circle 1-1b is closest to RnRecording the concentric circle 1-1b as an installation concentric circle 1-1bA, installing n high-pressure nozzles 2 on n water outlets 1b on the installation concentric circle 1-1bA, and installing the plugs 3 on the rest water outlets 1b on the turntable body 1;
for example: the flow dividing rotary table shown in fig. 1 is provided with four water outlet groups, and four high-pressure nozzles 2 are mounted on four water outlets 1b on a concentric circle 1-1 bA.
If n/2 times the sum of the radii of two of said concentric circles 1-1b is closest to RnRecording the two concentric circles 1-1b as a first installation concentric circle 1-1bA1 and a second installation concentric circle 1-1bA2, and alternately installing n high-pressure nozzles 2 on water outlets 1b on the first installation concentric circle 1-1bA1 and the second installation concentric circle 1-1bA2 along the circumferential direction of the turntable body 1, wherein the rest water outlets 1b on the turntable body 1 are provided with the plugs 3;
for example: the flow dividing rotary disc shown in fig. 3 is provided with four groups of water outlets, two high-pressure nozzles 2 are symmetrically arranged on two water outlets 1b on a first installation concentric circle 1-1bA1, and the other two high-pressure nozzles 2 are symmetrically arranged on two water outlets 1b on a second installation concentric circle 1-1bA 2.
For the case that the diversion rotary table is provided with odd groups of the water outlet groups, that is, n is an odd number:
n is the nearest to RnThe concentric circles 1-1b are recorded as anThe concentric circles 1-1bA are installed, n high-pressure nozzles 2 are installed on n water outlets 1b on the installation concentric circles 1-1bA, and the plugs 3 are installed on the rest water outlets 1b on the rotary disc body 1.
For example: the flow dividing rotary disc shown in fig. 3 is provided with three groups of water outlet groups, and three high-pressure nozzles 2 are arranged at three water outlets 1b on a concentric circle 1-1 bA.
Therefore, after the deepwater net cage netting cleaning equipment is started, the shunting turntable can stably rotate at the rotating speed close to the target stable rotating speed omega after the starting stage.
Therefore, the stepped rotating speed adjusting method can enable the shunting turntable to stably rotate at a rotating speed close to the preset target stable rotating speed omega through the steps from the first step to the third step, and realize that the stepped rotating speed control is accurately carried out on the shunting turntable under the conditions that the high-pressure water supply pressure is fixed and no additional auxiliary speed regulating mechanism is needed, so that the proper target stable rotating speed omega can be set aiming at the net cage culture fouling organism attachment types of the deepwater net cage required to be cleaned in different sea areas or different culture stages, the optimal rotating speed is configured for the shunting turntable when the net cage is cleaned, and the cleaning efficiency and the fouling organism removal rate of the deepwater net cage are improved;
in any case, no matter n is even or odd, no matter n is installed on the installation concentric circle 1-1bA or is alternately installed on the first installation concentric circle 1-1bA1 and the second installation concentric circle 1-1bA2, the n high-pressure nozzles 2 are symmetrically arranged on the flow dividing rotary disc, so that the flow dividing rotary disc can be ensured not to be subjected to overturning moment to increase the rotating friction force, and the rotating smoothness of the flow dividing rotary disc is ensured;
in conclusion, the stepped rotating speed adjusting method can ensure the smoothness of the rotation of the shunting turntable, and can ensure that the shunting turntable stably rotates at a rotating speed close to the preset target stable rotating speed omega, so as to improve the cleaning efficiency of the deepwater net cage and the removal rate of fouling organisms.
The present invention is not limited to the above embodiments, and various other equivalent modifications, substitutions and alterations can be made without departing from the basic technical concept of the invention as described above, according to the common technical knowledge and conventional means in the field.
Claims (7)
1. A shunt turntable of deepwater net cage netting cleaning equipment is provided with a disc-shaped turntable body (1); the method is characterized in that:
the circular front surface (1-1) of the turntable body (1) is provided with n groups of water outlet groups, wherein n is more than or equal to 3, each water outlet group comprises m water outlets (1b) which are arranged at intervals along the extension line (1-1a), and m is more than or equal to 2; extension lines (1-1a) of the water outlet groups of each group are uniformly arranged around the axis of the turntable body (1) at intervals, and each extension line (1-1a) is the radius of the round front surface (1-1); the m water outlets (1b) of each water outlet group are respectively positioned on m concentric circles (1-1b) with different radiuses of the circular front surface (1-1);
the water outlet (1b) is a connecting port capable of being provided with a high-pressure nozzle (2) or a plug (3), and the water spraying direction of the high-pressure nozzle (2) is along the axis (1bA) of the water outlet (1b) where the high-pressure nozzle is located; the axis (1bA) of the water outlet (1b) is vertical to the extension line (1-1a) of the water outlet group where the water outlet (1b) is located, and forms an included angle with the circular front surface (1-1), wherein the included angle is alpha, the alpha is more than or equal to 30 degrees and less than or equal to 60 degrees, and the axis (1bA) of the water outlet (1b) contained in each water outlet group is rotationally symmetrical around the axis of the turntable body (1);
moreover, a water inlet (1a) coaxial with the circular back surface (1-2) of the turntable body (1) is arranged on the circular back surface; the inside of carousel body (1) is equipped with the runner structure, water inlet (1a) through this runner structure intercommunication each delivery port (1 b).
2. The shunt turntable of the deepwater net cage and netting cleaning equipment of claim 1, which is characterized in that: the water outlet (1b) consists of a groove (1b1) and an internal thread hole (1b2), the groove (1b1) is arranged on the circular front surface (1-1) of the turntable body (1), the internal thread hole (1b2) is communicated with the groove (1b1) and the flow channel structure, and the axis of the internal thread hole (1b2) is the axis (1bA) of the water outlet (1 b); when the high-pressure nozzle (2) and the plug (3) are connected to the internal threaded hole (1b2) in a threaded connection mode, the high-pressure nozzle and the plug can be accommodated in the groove (1b 1).
3. The shunt turntable of the deepwater net cage and netting cleaning equipment of claim 1, which is characterized in that: the runner structure corresponds each group the delivery port group is equipped with a runner (1c), each runner (1c) all extends along the extension line (1-1a) of its delivery port group that corresponds, water inlet (1a) pass through this runner (1c) communicates m delivery port (1b) of the delivery port group that corresponds.
4. The shunt turntable of the deepwater net cage and netting cleaning equipment of claim 1, which is characterized in that: the angle alpha of the included angle is 45 degrees.
5. The shunt turntable of the deepwater net cage and netting cleaning equipment of claim 1, which is characterized in that: the m water outlets (1b) are uniformly arranged at intervals along the extension line (1-1a) of the water outlet group where the m water outlets are located.
6. The shunt turntable of the deepwater net cage and netting cleaning equipment as claimed in any one of claims 1 to 5, wherein: each water outlet group is symmetrically provided with m reverse water outlets along the extension line (1-1a) corresponding to the m water outlets (1b) contained in the water outlet group.
7. A method for adjusting the graded rotating speed is characterized in that: a shunt rotating disc suitable for the deepwater net cage and netting cleaning equipment of any one of claims 1 to 6;
the method comprises the following steps:
step one, when the deepwater net cage netting is cleaned, the water inlet (1a) of the shunting rotary disc is rotatably arranged on a high-pressure water supply port of deepwater net cage netting cleaning equipment through a hollow rotary shaft;
step two, setting the target stable rotation of the shunting turntableSpeed omega, and calculating the target nozzle installation radius and value R according to the following formulan：
Wherein Q is the output flow rate of the high-pressure water supply port, R is the radius of the turntable body (1), and M is0The friction resistance moment of the shunting turntable and the hollow rotating shaft is shown, P is the water pressure at the water inlet (1a) of the turntable body (1), and alpha is the angle value of the included angle;
thirdly, the radius of the m concentric circles (1-1b) and the target nozzle installation radius sum value RnComparing;
for the case that the diversion rotary disc is provided with even groups of the water outlet groups, namely n is an even number:
if the n-half radius of the same concentric circle (1-1b) is closest to RnRecording the concentric circle (1-1b) as an installation concentric circle (1-1bA), installing n high-pressure nozzles (2) on n water outlets (1b) on the installation concentric circle (1-1bA), and installing the plugs (3) on the rest water outlets (1b) on the turntable body (1);
if n/2 times the sum of the radii of two of said concentric circles (1-1b) is closest to RnRecording the two concentric circles (1-1b) as a first installation concentric circle (1-1bA1) and a second installation concentric circle (1-1bA2), and alternately installing n high-pressure nozzles (2) on water outlets (1b) on the first installation concentric circle (1-1bA1) and the second installation concentric circle (1-1bA2) along the circumferential direction of the rotary disc body (1), wherein the plugs (3) are installed on the rest water outlets (1b) on the rotary disc body (1);
for the case that the diversion rotary table is provided with odd groups of the water outlet groups, that is, n is an odd number:
n is the nearest to RnThe concentric circles (1-1b) are recorded as installation concentric circles (1-1bA), and n high-pressure nozzles (2) are installed on n water outlets (1b) on the installation concentric circles (1-1bA), wherein the turntable body (1) is provided withThe other water outlets (1b) are provided with the plugs (3).
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| CN202110332798.XA CN113182242B (en) | 2021-03-29 | 2021-03-29 | Shunting turntable of deepwater net cage netting cleaning equipment and grading rotating speed adjusting method thereof |
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| CN202110332798.XA CN113182242B (en) | 2021-03-29 | 2021-03-29 | Shunting turntable of deepwater net cage netting cleaning equipment and grading rotating speed adjusting method thereof |
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| CN113182242B CN113182242B (en) | 2022-09-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031151A (en) * | 2022-06-21 | 2022-09-09 | 浙江昕兴科技有限公司 | Single-metering valve double-groove oil injection structure and oil injection method thereof |
| CN116174401A (en) * | 2023-04-25 | 2023-05-30 | 山东辰升科技有限公司 | Rotary jet type deep sea cage netting cleaning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206911591U (en) * | 2017-05-27 | 2018-01-23 | 费钰涵 | Rotary top-spraying gondola |
| CN107671052A (en) * | 2017-11-13 | 2018-02-09 | 中国水产科学研究院渔业机械仪器研究所 | A kind of aquaculture net cage underwater cleaning device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206911591U (en) * | 2017-05-27 | 2018-01-23 | 费钰涵 | Rotary top-spraying gondola |
| CN107671052A (en) * | 2017-11-13 | 2018-02-09 | 中国水产科学研究院渔业机械仪器研究所 | A kind of aquaculture net cage underwater cleaning device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031151A (en) * | 2022-06-21 | 2022-09-09 | 浙江昕兴科技有限公司 | Single-metering valve double-groove oil injection structure and oil injection method thereof |
| CN115031151B (en) * | 2022-06-21 | 2023-08-25 | 浙江昕兴科技有限公司 | Single-quantitative valve double-channel oiling structure and oiling method thereof |
| CN116174401A (en) * | 2023-04-25 | 2023-05-30 | 山东辰升科技有限公司 | Rotary jet type deep sea cage netting cleaning device |
| CN116174401B (en) * | 2023-04-25 | 2023-07-14 | 山东辰升科技有限公司 | Rotary jet type deep sea cage netting cleaning device |
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| CN113182242B (en) | 2022-09-13 |
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