阅读说明：本技术 水下启闭舱口盖悬浮泥沙模拟环境试验系统及试验方法 (Simulation environment test system and test method for suspended sediment of underwater opening and closing hatch cover ) 是由 赵飞虎 许可 宋强 于 2021-10-08 设计创作，主要内容包括：水下启闭舱口盖悬浮泥沙模拟环境试验系统及试验方法,包括水箱,水箱的顶面安装有搅拌器,搅拌器的螺旋桨伸入至水箱内部,水箱内部充满水,并配置有泥沙,启动搅拌器在螺旋桨的作用下泥沙颗粒悬浮分布于水箱内部；水箱的内部还安装有筒体,筒体的底部配合安装有盖板,盖板通过摆臂与启闭摆动缸连接,启闭摆动缸的基座安装在筒体上,通过控制启闭摆动缸的转动实现盖板的开启或关闭动作；筒体的顶部中心位置开有孔,孔处安装有过渡接头,过渡接头依次通过管路串联有截止阀和空气压缩机；筒体内部还安装有锁紧机构；在试验室平台条件下运行,开展水下启闭舱口盖的悬浮泥沙环境适应性试验,并以密封圈的气密压力值作为试验考核指标。(The underwater opening and closing hatch cover suspended sediment simulation environment test system comprises a water tank, wherein a stirrer is installed on the top surface of the water tank, a propeller of the stirrer extends into the water tank, the water tank is filled with water and is provided with sediment, and sediment particles are suspended and distributed in the water tank by starting the stirrer under the action of the propeller; the water tank is internally provided with a cylinder body, the bottom of the cylinder body is provided with a cover plate in a matching way, the cover plate is connected with the opening and closing oscillating cylinder through a swing arm, a base of the opening and closing oscillating cylinder is arranged on the cylinder body, and the opening or closing action of the cover plate is realized by controlling the rotation of the opening and closing oscillating cylinder; a hole is formed in the center of the top of the cylinder body, a transition joint is mounted at the hole, and the transition joint is connected with a stop valve and an air compressor in series through a pipeline in sequence; a locking mechanism is also arranged in the cylinder body; the device runs under the condition of a platform of a test room, carries out the suspended sediment environment adaptability test of the underwater opening and closing hatch cover, and takes the airtight pressure value of the sealing ring as a test check index.)

1. The utility model provides an open and close hatch board suspension silt simulation environment test system under water which characterized in that: the water tank comprises a water tank (1), wherein a stirrer (2) is installed on the top surface of the water tank (1), a propeller of the stirrer (2) extends into the water tank (1), the water tank (1) is filled with water and is provided with silt, and the stirrer (2) is started to suspend silt particles in the water tank (1) under the action of the propeller;

the water tank (1) is internally provided with a cylinder body (3), the bottom of the cylinder body (3) is provided with a cover plate (4) in a matching way, the cover plate (4) is connected with an opening and closing swinging cylinder (8) through a swinging arm (7), a base of the opening and closing swinging cylinder (8) is arranged on the cylinder body (3), and the opening or closing action of the cover plate (4) is realized by controlling the rotation of the opening and closing swinging cylinder (8);

a hole is formed in the center of the top of the barrel (3), a transition joint (9) is installed at the hole, and the transition joint (9) is connected with a stop valve (11) and an air compressor (12) in series through a pipeline in sequence;

a locking mechanism (5) is also arranged in the cylinder body (3);

the locking mechanism (5) is structurally characterized in that:

including fixing two sliding support (503) inboard at apron (4), still including being located axle plate (501) of two sliding support (503), axle plate (501) are "ten" style of calligraphy structure, the bottom of axle plate (501) is connected and is locked swing jar (502), locks simultaneously and swings jar (502) and install in apron (4) inboard central axis department, the both ends of axle plate (501) are connected with connecting rod (505) through round pin axle (506) respectively, the outside of connecting rod (505) is through same round pin axle (506) connection latch (504), and latch (504) are installed in the hole of sliding support (503), and latch (504) carry out rectilinear movement along sliding support (503).

2. The underwater opening and closing hatch cover suspended sediment simulation environment test system of claim 1, characterized in that: a groove is formed in the cover plate (4), and a sealing ring (6) is installed in the groove.

3. The underwater opening and closing hatch cover suspended sediment simulation environment test system of claim 1, characterized in that: and a pressure gauge (10) is arranged on a pipeline between the transition joint (9) and the stop valve (11), and the pressure gauge (10) detects the pressure on the inner side of the cover plate (4).

4. The underwater opening and closing hatch cover suspended sediment simulation environment test system of claim 1, characterized in that: the sliding support (503) is welded with the inner side surface of the cover plate (4).

5. The underwater opening and closing hatch cover suspended sediment simulation environment test system and method as claimed in claim 1, characterized in that: the cross section of the sliding support (503) is in a T-shaped structure.

6. The underwater opening and closing hatch cover suspended sediment simulation environment test system and method as claimed in claim 1, characterized in that: the inner wall surface of the cylinder body (3) is provided with a concave pit matched with the locking pin (504).

7. A test method of the test system for simulating the environment by using the suspended sediment of the underwater opening and closing hatch cover of claim 1 is characterized in that: the method comprises the following steps:

the first step is as follows: adding water into the water tank (1) and preparing silt;

the second step is that: starting the stirrer (2) to enable silt particles to be suspended and distributed in the water tank (1);

the third step: starting a locking swing cylinder (502) to work;

the fourth step: the locking swing cylinder (502) is controlled to rotate, the locking pin (504) is driven to be separated from the pit in the cylinder body (3), and the cover plate (4) is unlocked;

the fifth step: the opening and closing swing cylinder (8) is controlled to rotate, the cover plate (4) is opened, and the opening state is kept;

and a sixth step: the time in the state of opening the cover is used for simulating the actual operation state, and the time in the state of closing and locking the cover plate (4) is used for simulating the complete working process of the hatch cover in the dry-wet conversion operation task;

the seventh step: driving the stirrer (2) to stop working;

eighth step: after water in the water tank (1) is static, the stop valve (11) is opened, the air compressor (12) is started, and when the reading of the pressure gauge (10) reaches a preset value, the stop valve (11) is closed and the air compressor (12) is stopped;

the ninth step: after the pressure is maintained for 30-60 minutes, observing whether the pressure value of the pressure gauge (10) is reduced and whether bubbles emerge from the water tank (1) or not, and judging whether the tightness of the sealing ring (6) of the cover plate (4) is intact or not;

the tenth step: according to the test operation flow, repeated opening and closing locking functions and tightness check tests of the cover plate (4) are carried out for many times so as to verify the adaptability and reliability of the underwater opening and closing hatch cover in the suspended sediment environment.

Technical Field

The invention relates to the technical field of underwater opening and closing hatch covers, in particular to a system and a method for simulating an environment by suspended sediment of an underwater opening and closing hatch cover.

Background

With the continuous development of ocean engineering technology, the requirements of an underwater platform on a dry-wet conversion technology are increasingly improved, and the underwater opening and closing hatch cover is used as a key component of the dry-wet conversion cabin, and whether the function of the underwater opening and closing hatch cover is reliable or not directly determines whether a dry-wet conversion operation task can be smoothly completed or not.

Different from an ideal state, suspended sediment exists in seawater (particularly on the offshore bottom surface) in practical engineering application, suspended sediment inevitably enters a sealing surface of a hatch cover in the opening and closing processes of the hatch cover, if the sealing structure cannot adapt to the existence of sediment particles, sealing failure can be caused, and a dry-wet conversion operation process cannot be completed, so that the technical problem that the adaptive effect of the sealing structure for the underwater opening and closing hatch cover on the suspended sediment is required to be solved before engineering application is tested. The test of the adaptability of the suspended sediment environment for opening and closing the hatch cover underwater in the marine environment is the most intuitive, but the method adopting the marine test not only brings a great deal of technical difficulty to the construction of a test system, but also needs a great amount of manpower, material resources and cost expenditure.

Disclosure of Invention

The applicant provides a reasonable-structure simulation environment test system and a reasonable-structure simulation environment test method for suspended sediment of the underwater opening and closing hatch cover, aiming at the defects in the prior art, so that the test system and the test method can be operated under the condition of a platform of a test room, the environment adaptability test of the suspended sediment of the underwater opening and closing hatch cover can be carried out, and the airtight pressure value of the sealing ring is used as a test check index.

The technical scheme adopted by the invention is as follows:

a simulation environment test system for suspended sediment of an underwater opening and closing hatch cover comprises a water tank, wherein a stirrer is installed on the top surface of the water tank, a propeller of the stirrer extends into the water tank, the water tank is filled with water and is provided with sediment, and sediment particles are suspended and distributed in the water tank by starting the stirrer under the action of the propeller;

the water tank is internally provided with a cylinder body, the bottom of the cylinder body is provided with a cover plate in a matching way, the cover plate is connected with the opening and closing oscillating cylinder through a swing arm, a base of the opening and closing oscillating cylinder is arranged on the cylinder body, and the opening or closing action of the cover plate is realized by controlling the rotation of the opening and closing oscillating cylinder;

a hole is formed in the center of the top of the cylinder body, a transition joint is mounted at the hole, and a stop valve and an air compressor are connected in series through a pipeline in sequence through the transition joint;

a locking mechanism is also arranged in the cylinder body;

the locking mechanism has the structure that:

including fixing two inboard sliding support at the apron, still including the axletree board that is located two sliding support, the axletree board is "ten" style of calligraphy structure, the locking swing jar is connected to the bottom of axletree board, and the locking swing jar is installed in the inboard central axis department of apron simultaneously, there is the connecting rod at the both ends of axletree board through the round pin hub connection respectively, the outside of connecting rod is through same round pin hub connection fitting pin, and the fitting pin is installed in sliding support's hole, and the fitting pin carries out rectilinear movement along sliding support.

The cover plate is provided with a groove, and a sealing ring is arranged in the groove.

And a pressure gauge is arranged on a pipeline between the transition joint and the stop valve and used for detecting the pressure on the inner side of the cover plate.

The sliding support is welded with the inner side face of the cover plate.

The cross section of the sliding support is of a T-shaped structure.

And a concave pit matched with the locking pin is arranged on the inner wall surface of the cylinder body.

A test method of an underwater open-close hatch cover suspended sediment simulation environment test system comprises the following operation methods:

the first step is as follows: adding water into the water tank and preparing silt;

the second step is that: starting the stirrer to enable the silt particles to be suspended and distributed in the water tank;

the third step: starting the locking oscillating cylinder to work;

the fourth step: the locking swing cylinder is controlled to rotate, the locking pin is driven to be separated from the pit in the cylinder body, and the cover plate is unlocked;

the fifth step: the opening and closing swing cylinder is controlled to rotate, the cover plate is opened, and the uncovering state is kept;

and a sixth step: the time in the cover opening state is used for simulating the actual operation state, and the time in the cover plate state is closed and locked for simulating the complete working process of the hatch cover in the dry-wet conversion operation task;

the seventh step: driving the stirrer to stop working;

eighth step: after the water in the water tank is static, opening the stop valve, starting the air compressor, and closing the stop valve and stopping the air compressor when the reading of the pressure gauge reaches a preset value;

the ninth step: after the pressure is maintained for 30-60 minutes, observing whether the pressure value of the pressure gauge is reduced and whether bubbles emerge from the water tank, and judging whether the sealing ring of the cover plate is in good tightness;

the tenth step: according to the test operation flow, repeated cover plate opening and closing locking functions and tightness check tests are carried out for many times so as to verify the adaptability and reliability of the underwater opening and closing hatch cover in the suspended sediment environment.

The invention has the following beneficial effects:

the device has compact and reasonable structure and convenient operation, can simulate the opening, closing, locking and unlocking actions of the hatch cover in the environment by simulating the suspended sediment state of the marine environment of the dry-wet conversion cabin, and performs a sealing performance examination test on the hatch cover on the basis of the simulated opening, closing and locking actions of the hatch cover so as to test the adaptability and reliability of the underwater opening and closing hatch cover in the suspended sediment environment. The system can operate under the condition of a test platform, can simulate the proportion of suspended sediment in different ocean areas, and can carry out an environmental adaptability test and a long-term reliability examination test of the suspended sediment, thereby not only reducing the additional technical difficulty, but also greatly reducing the test cost compared with a direct sea test.

The invention is mainly used for simulating an underwater suspended sediment environment and testing the sealing performance of the hatch cover after opening and closing in the environment, thereby supporting the engineering application of opening and closing the hatch cover underwater.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the locking mechanism of the present invention.

Wherein: 1. a water tank; 2. a stirrer; 3. a barrel; 4. a cover plate; 5. a locking mechanism; 6. a seal ring; 7. swinging arms; 8. opening and closing the swing cylinder; 9. a transition joint; 10. a pressure gauge; 11. a stop valve; 12. an air compressor;

501. a shaft plate; 502. locking the swing cylinder; 503. a sliding support; 504. a locking pin; 505. a connecting rod; 506. and (7) a pin shaft.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the system for simulating an environment by suspending silt in an underwater opening and closing hatch cover of the embodiment includes a water tank 1, a stirrer 2 is installed on the top surface of the water tank 1, a propeller of the stirrer 2 extends into the water tank 1, the water tank 1 is filled with water and is provided with silt, and the stirrer 2 is started to suspend silt particles in the water tank 1 under the action of the propeller;

the water tank 1 is also internally provided with a cylinder body 3, the bottom of the cylinder body 3 is provided with a cover plate 4 in a matching way, the cover plate 4 is connected with an opening and closing swing cylinder 8 through a swing arm 7, the base of the opening and closing swing cylinder 8 is arranged on the cylinder body 3, and the opening or closing action of the cover plate 4 is realized by controlling the rotation of the opening and closing swing cylinder 8;

a hole is formed in the center of the top of the cylinder 3, a transition joint 9 is installed at the hole, and the transition joint 9 is connected with a stop valve 11 and an air compressor 12 in series through a pipeline in sequence;

a locking mechanism 5 is also arranged in the cylinder 3;

the locking mechanism 5 has the structure that:

the locking mechanism comprises two sliding supports 503 fixed on the inner side of a cover plate 4, and further comprises a shaft plate 501 located on the two sliding supports 503, wherein the shaft plate 501 is of a cross-shaped structure, the bottom of the shaft plate 501 is connected with a locking swing cylinder 502, the locking swing cylinder 502 is installed on the central axis of the inner side of the cover plate 4, two ends of the shaft plate 501 are respectively connected with a connecting rod 505 through a pin shaft 506, the outer side of the connecting rod 505 is connected with a locking pin 504 through the same pin shaft 506, the locking pin 504 is installed in the inner hole of the sliding support 503, and the locking pin 504 moves linearly along the sliding supports 503.

The cover plate 4 is provided with a groove, and a sealing ring 6 is arranged in the groove.

And a pressure gauge 10 is arranged on a pipeline between the transition joint 9 and the stop valve 11, and the pressure gauge 10 detects the pressure on the inner side of the cover plate 4.

The sliding support 503 is welded to the inner side of the cover plate 4.

The cross section of the sliding support 503 is in a T-shaped structure.

The inner wall surface of the cylinder 3 is provided with a recess that engages with the locking pin 504.

The test method of the underwater open-close hatch cover suspended sediment simulation environment test system comprises the following operation methods:

the first step is as follows: adding water into the water tank 1 and preparing silt;

the second step is that: starting the stirrer 2 to enable the silt particles to be suspended and distributed in the water tank 1;

the third step: starting the locking swing cylinder 502 to work;

the fourth step: the locking swing cylinder 502 is controlled to rotate, the locking pin 504 is driven to be separated from the pit in the cylinder body 3, and the cover plate 4 is unlocked;

the fifth step: the opening and closing swing cylinder 8 is controlled to rotate, the cover plate 4 is opened, and the uncovering state is kept;

and a sixth step: the time in the state of opening the cover is used for simulating the actual operation state, and the time in the state of closing and locking the cover plate 4 is used for simulating the complete working process of the hatch cover in the dry-wet conversion operation task;

the seventh step: driving the stirrer 2 to stop working;

eighth step: after the water in the water tank 1 is static, starting the stop valve 11, starting the air compressor 12, and when the reading of the pressure gauge 10 reaches a preset value, closing the stop valve 11 and stopping the air compressor 12;

the ninth step: after the pressure is maintained for 30-60 minutes, observing whether the pressure value of the pressure gauge 10 is reduced and whether bubbles emerge from the water tank 1, and judging whether the tightness of the sealing ring 6 of the cover plate 4 is intact;

the tenth step: according to the test operation flow, repeated opening and closing locking functions and tightness check tests of the cover plate 4 are carried out for many times so as to verify the adaptability and reliability of the underwater opening and closing hatch cover in the suspended sediment environment.

The main structure and function of the invention are as follows:

mainly comprises a water tank 1, a stirrer 2, a cylinder 3, a cover plate 4, a locking mechanism 5, a sealing ring 6, a swing arm 7, an opening and closing swing cylinder 8, a transition joint 9, a pressure gauge 10, a stop valve 11 and an air compressor 12,

the locking mechanism 5 comprises a shaft plate 501, a locking swing cylinder 502, a sliding support 503, a locking pin 504, a connecting rod 505 and a pin 506.

The stirrer 2 is arranged at the top of the water tank 1, the water tank 1 is filled with water and is provided with a certain amount of silt according to the proportion requirement, and the stirrer 2 is started to suspend and distribute silt particles in the water tank 1 under the action of the propeller;

the cylinder body 3 is arranged in the water tank 1, the cover plate 4 is connected with the opening and closing swing cylinder 8 through the swing arm 7, the sealing ring 6 is arranged in a groove of the cover plate 4, the base of the opening and closing swing cylinder 8 is arranged on the cylinder body 3, and the opening or closing action of the hatch cover can be realized by controlling the rotation of the opening and closing swing cylinder 8; the transition joint 9 is installed at an opening at the top of the cylinder 3, is connected with the stop valve 11 and the air compressor 12 sequentially through a pipeline, and a pressure gauge 10 is installed on the pipeline between the transition joint 9 and the stop valve 11 and used for detecting the pressure on the inner side of the cover plate 4.

The sliding support 503 is welded with the inner side of the cover plate 4, the locking swing cylinder 502 is installed at the inner axis of the cover plate 4, and the shaft outlet end of the locking swing cylinder 502 is fixedly connected with the locking shaft plate 501; the locking pin 504 is arranged in an inner hole of the sliding support 503, and the locking pin 504 can move linearly along the sliding support 503, when the locking pin 504 extends into the pit of the cylinder 3, the locking action of the cover plate 4 is realized, and when the locking pin 504 retracts, the unlocking action is realized; one end of a connecting rod 505 is hinged with the locking shaft plate 501 through a pin shaft 506, and the other end is hinged with the locking pin 504 through the pin shaft 506; the locking swing cylinder 502 is controlled to rotate forward and backward to realize the reciprocating directional movement of the locking pin 504, so that the locking and unlocking actions of the cover plate 4 are completed.

In the actual working process:

the stirrer 2 is started, after silt particles are suspended in the water tank 1, the locking swing cylinder 502 is controlled to rotate and unlock the cover plate 4, the opening and closing swing cylinder 8 is controlled to rotate and open the cover plate 4, the cover opening state is kept for a certain time to simulate the actual operation state, and the cover plate 4 is closed and locked.

Stopping the stirrer 2, starting the stop valve 11 and starting the air compressor 12 after the water in the water tank 1 is static, and closing the stop valve 11 and stopping the air compressor 12 when the reading of the pressure gauge 10 reaches a preset value. And after maintaining the pressure for a certain time, observing whether the pressure value of the pressure gauge 10 is reduced and whether bubbles emerge from the water tank 1, so as to judge whether the sealing ring 6 of the cover plate 4 is in good tightness.

According to the test operation flow, repeated opening and closing locking functions and tightness check tests of the cover plate 4 are carried out for many times so as to verify the adaptability and reliability of the underwater opening and closing hatch cover in the suspended sediment environment.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.