CN113106950A - Automatic sinking and floating control system and control method for floating access door - Google Patents
Automatic sinking and floating control system and control method for floating access door Download PDFInfo
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- CN113106950A CN113106950A CN202110282022.1A CN202110282022A CN113106950A CN 113106950 A CN113106950 A CN 113106950A CN 202110282022 A CN202110282022 A CN 202110282022A CN 113106950 A CN113106950 A CN 113106950A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 732
- 230000001105 regulatory effect Effects 0.000 claims abstract description 129
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000007689 inspection Methods 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 230000000007 visual effect Effects 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000004069 differentiation Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 description 3
- 108010066057 cabin-1 Proteins 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 108010066114 cabin-2 Proteins 0.000 description 1
- 108010066278 cabin-4 Proteins 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C1/00—Locks or dry-docks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
- E02C1/06—Devices for filling or emptying locks
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C1/00—Locks or dry-docks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
Abstract
An automatic sinking and floating control system and a control method of a floating access door comprise an access door body and are characterized in that a central water tank is arranged in the center of the bottom in the access door body, a first side water tank and a second side water tank are respectively arranged at the upper part of the central water tank at the upper and lower sides in the door body, a first regulating water tank and a second regulating water tank are respectively arranged at the two sides of the first side water tank and the second side water tank, the central water tank is arranged through the access door body, the side water tanks and the regulating water tanks are respectively arranged at the upper and lower sides in the door body, and a valve system connected with the central water tank, the side water tanks and the regulating water tanks is adopted to achieve the purpose that the access door can float or sink through the regulating valve body, simultaneously, a high-low position float switch in the side water tanks is adopted to regulate a liquid level meter in the water tanks, a main control cabinet can automatically control the sinking or floating of the access door, simultaneously, the inclination angle, and when the stable state of the door body is achieved, the door body can be routinely inspected through a routine inspection mode.
Description
Technical Field
The invention relates to the field of access door control, in particular to an automatic sinking and floating control system and method for a floating access door.
Background
The floating type access door for the hydropower station pivot project is of a door body structure at present, a plurality of water tanks are arranged in an internal structure, liquid level meters and connecting valves are arranged in the water tanks, and the floating type access door sinks and floats upwards through the change of the water level of the water tanks under manual control. The control of water level mainly judges whether the water yield in each cabin needs to be increased or decreased through the manual work, and the electric valve of every water cabin is connected with manual operation to control, and a start-up case is generally configured to a single electric valve, and through manual, operation start-up case one by one, the realization is opened and is closed of each valve. The working state of the floating gate judges whether the floating gate is transversely inclined or not by manually checking the water gauges at the four corners of the floating gate.
However, in actual operation, the valves are manually operated one by one, and accurate judgment of field command and skillful matching of a plurality of operators are needed, so that the sinking and floating operation process of the floating gate is complicated and the control efficiency is low. Inaccurate manual judgment and untimely manual operation can cause unstable state of the access floating gate when the access floating gate works, so that the floating gate transversely inclines or longitudinally inclines in a gate slot, and the structure of the gate body is damaged and uncertain potential safety hazards are brought.
For example, chinese patent document CN 111364433 a describes a ship lock floating type access door device and an automatic floating control method, but it cannot observe the water level in the cabin in real time, and the water level between the upstream and downstream cannot be communicated through the access door during operation, which affects the convenience and progress of floating.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic sinking and floating control system and a control method for a floating access door, which can enable the floating access door to float and sink in various working modes, can be manually controlled and can also be automatically controlled, and when the floating access door is automatically controlled, the opening degree of the valve can be adjusted by detecting the liquid level and the inclination angle so as to stably float or sink and prevent the door body from toppling over.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a floating access door comprises an access door body, wherein a central water cabin is arranged in the center of the bottom in the access door body, a first side water cabin and a second side water cabin are respectively arranged at the upper parts of the central water cabin at the upper and lower sides in the door body, a first regulating water cabin and a second regulating water cabin are respectively arranged at the two sides of the first side water cabin and the second side water cabin, the upper parts of the central water cabin, the first side water cabin, the second side water cabin, the first regulating water cabin and the second regulating water cabin are respectively provided with a vent pipe, a first water inlet valve and a second water inlet valve which are respectively connected with the upstream side and the downstream side are arranged on the central water cabin, a first balance valve is connected with a pipeline penetrating through the access door body at the upstream and downstream, the central water cabin, the first side water cabin and the second side water cabin are respectively connected through a first side water cabin water inlet and outlet valve and a second side water inlet and outlet valve, a first regulating water inlet and outlet valve A connected with the first regulating water cabin is arranged on a branch of a first side water, and a second regulating water tank water inlet and outlet valve A connected with the second regulating water tank is arranged on the branch of the second side water tank water inlet and outlet valve and the central water tank connecting pipeline, a drainage pump water outlet valve and a drainage pump are arranged on the central water tank, and the output end of the drainage pump is positioned at the upper part of the access door.
And the water inlet and outlet valve A of the first regulating water tank is provided with a water inlet and outlet valve B of the first regulating water tank which is connected in parallel, the water inlet and outlet valve A of the second regulating water tank is provided with a water inlet and outlet valve B of the second regulating water tank which is connected in parallel, and the first balance valve is provided with a second balance valve which is connected in parallel.
The automatic sinking and floating control system using the floating type access door is characterized in that a regulating water tank liquid level meter is arranged in the first regulating water tank and the second regulating water tank, a side water tank high-level floating ball switch and a side water tank low-level floating ball switch are arranged in the first side water tank and the second side water tank, the upper portion of the access door is provided with inclination angle sensors on the two sides of the upper portion and the lower portion, the regulating water tank liquid level meter, the side water tank high-level floating ball switch, the side water tank low-level floating ball switch, the inclination angle sensors and the input end of a main control cabinet are electrically connected, the output end of the main control cabinet is electrically connected with a valve body control box, and the valve body control box and.
The four corners of the regulating water tank liquid level meter are respectively provided with one regulating water tank.
The regulating water tank liquid level meter is a drop-in type liquid level meter.
The main control cabinet controller adopts a PLC (programmable logic controller), the PLC is electrically connected with the analog input/output module, and an HMI (human machine interface) display screen connected with the PLC is arranged on the main control cabinet;
the first regulating water tank water inlet and outlet valve A, the first regulating water tank water inlet and outlet valve B, the second regulating water tank water inlet and outlet valve A and the second regulating water tank water inlet and outlet valve B are regulating valves and are electrically connected with the analog quantity output module.
The sinking and floating control method using the floating type access door automatic sinking and floating control system comprises the following specific steps:
STEP1, the control mode is divided into manual mode, automatic mode, emergency mode and routine checking mode;
when STEP2 is in sinking and floating operation, a PLC in a main control cabinet firstly judges which mode is currently in, when the PLC is in a manual mode, the PLC enters STEP3, when the PLC is in an automatic mode, the PLC enters STEP4, and when the PLC is in a routine checking mode, the PLC enters STEP 5; when the system detection condition reaches the emergency mode, STEP6 is entered,
STEP3, when the floating and sinking operation is carried out in the manual mode, the HMI display screen is manually operated to open the valve bodies in sequence, so that the central water cabin, the first side water cabin, the second side water cabin and the first regulating water cabin and the second regulating water cabin carry out water inlet and water discharge in sequence;
when STEP4 and the automatic mode sink-and-float operation are carried out, the PLC controls the valve bodies to be opened in sequence, so that the central water tank, the first side water tank, the second side water tank and the first adjusting water tank can be used for feeding water and draining water in sequence, and the opening of the valve bodies of the first adjusting water tank and the second adjusting water tank can be automatically adjusted according to the liquid level information transmitted by the adjusting water tank liquid level meter and the current inclination angle of the access door transmitted by the inclination angle sensor;
STEP5, when the access door is in a routine inspection mode, the system automatically realizes the water filling or discharging process of the central water tank, the first side water tank and the second side water tank in the access door, and realizes sinking and floating;
STEP6, the control system judges that when the trim and roll angle of the floating gate exceeds the set value according to the data transmitted by the tilt sensor, the system enters an emergency operation mode and sends out an acousto-optic alarm, an emergency operation program is started, and the system automatically closes all valves and pumps.
The specific process of STEP3 is as follows:
STEP3.1, when the access door sinks, opening a first water inlet valve and a second water inlet valve, starting water filling of a central water tank, after the central water tank is full, opening a first side water tank water inlet and outlet valve and a second side water tank water inlet and outlet valve, starting water inlet of the first side water tank and the second side water tank, after the two side water tanks are full, opening a first regulating water tank water inlet and outlet valve A, a first regulating water tank water inlet and outlet valve B, a second regulating water tank water inlet and outlet valve A and a second regulating water tank water inlet and outlet valve B, starting water inlet of the first regulating water tank and the second regulating water tank, and after the two regulating water tanks are filled to the preset lower sinking position of the access door, closing the first water inlet valve connected with the upstream side and keeping the second water inlet valve connected with the downstream side open;
STEP3.2, when the access door floats upwards, closing the first water inlet valve and the second water inlet valve, opening the first balance valve and the second balance valve, closing the first balance valve and the second balance valve after the upstream water level and the downstream water level are consistent, closing the first side water tank water inlet and outlet valve and the second side water tank water inlet and outlet valve, simultaneously opening the first adjusting water tank water inlet and outlet valve A, the first adjusting water tank water inlet and outlet valve B, the second adjusting water tank water inlet and outlet valve A, the second adjusting water tank water inlet and outlet valve B and the drainage pump water outlet valve of the two adjusting water tanks, starting the drainage pump access door to drain water, floating upwards, when the two connecting water tanks are emptied, closing the first adjusting water tank water inlet and outlet valve A, the first adjusting water tank water inlet and outlet valve B, the second adjusting water tank water inlet and outlet valve A and the second adjusting water tank water inlet and outlet valve B, opening the first side water tank water inlet and outlet valve and the second side water tank water inlet and outlet valve of the two side water tanks to drain water, and closing the water inlet and outlet valves of each cabin and closing the drainage pump and the drainage pump outlet valve after the access door floats to the preset no-load waterline.
The specific process of STEP4 is as follows:
STEP4.1, when the access door sinks in an automatic mode, the system firstly controls the first water inlet valve and the second water inlet valve to be opened, the central water tank starts to fill water, when the preset time is reached, the first side water tank water inlet and outlet valve and the second side water tank water inlet and outlet valve are opened, when the water level reaches the low level of the side water tank, the side water tank low level float switch is activated, the system automatically alarms and displays, when the side water tank reaches the high level, the side water tank high level float switch is activated, the system automatically alarms and displays, at the moment, the system receives two switch trigger signals of the side water tank high level float switch and the side water tank low level float switch, the system automatically opens the first regulating water tank water inlet and outlet valve A, the first regulating water tank water inlet and outlet valve B, the second regulating water tank water inlet and outlet valve A and the second regulating water tank water inlet and outlet valve B, the two regulating water tanks start to fill water, and the regulating water tank liquid level meters arranged at four corners of the regulating water tanks detect the water, when the liquid level meter of the regulating water tank detects that the water level is sunk to the preset water level, the first water inlet valve and the second water inlet valve are closed
In the process of adjusting the water filling of the water tank, the system automatically detects the inclination data of the access door transmitted by the inclination angle sensor, when the inclination angle is within a set allowable range, the PLC in the main control cabinet sends out a PID (proportion integration differentiation) adjusting signal according to the inclination direction and the angle fed back by the inclination angle sensor to adjust the opening degree of the first adjusting water tank water inlet and outlet valve A, the first adjusting water tank water inlet and outlet valve B, the second adjusting water tank water inlet and outlet valve A and the second adjusting water tank water inlet and outlet valve B, so that the speeds of the first adjusting water tank and the second adjusting water tank are inconsistent, the inclination of the access door is reduced, when the inclination angle exceeds the preset range, the system sends out an audible and visual alarm, automatically switches to an emergency operation mode to enter a STEP (STEP-in-STEP) mode, and controls the valves by switching to a manual;
STEP4.2, when the access door floats upwards in an automatic mode, the system controls a drainage pump outlet valve to be opened, when the opening degree of the drainage pump outlet valve reaches 100%, the system automatically starts the drainage pump, simultaneously closes a first side water tank inlet and outlet valve and a second side water tank inlet and outlet valve, opens a first regulation water tank inlet and outlet valve A, a first regulation water tank inlet and outlet valve B, a second regulation water tank inlet and outlet valve A and a second regulation water tank inlet and outlet valve B, the two regulation water tanks start drainage, when the drainage reaches the preset lowest water level of a regulation water tank liquid level meter, the first side water tank inlet and outlet valve and the second side water tank inlet and outlet valve are opened, the two side water tanks start drainage, when the side water tanks drain water to all side water tank high-level float switches and side water tank low-level switches are not activated, the access door reaches the preset waterline, the system controls the drainage pump to stop, and controls the outlet valve to be closed, all valves of each cabin are closed simultaneously;
when the water discharging process of the adjusting water tank is carried out, the system automatically detects the inclination data of the access door transmitted by the inclination angle sensor, when the inclination angle is within a set allowable range, the PLC in the main control cabinet sends out PID adjusting signals according to the inclination direction and the inclination angle fed back by the inclination angle sensor to adjust the opening sizes of the water inlet and outlet valve A of the first adjusting water tank, the water inlet and outlet valve B of the first adjusting water tank, the water inlet and outlet valve A of the second adjusting water tank and the water inlet and outlet valve B of the second adjusting water tank, so that the speeds of the first adjusting water tank and the second adjusting water tank are inconsistent, the inclination of the access door is reduced, when the inclination angle exceeds the preset range, the system sends out audible and visual alarm, automatically switches to an emergency operation mode, enters STEP6, and controls the valves by switching to a manual mode, so that the access door.
The specific process of STEP5 is as follows:
when the access door is in a routine inspection mode, the system automatically controls the central water tank and the two side water tanks to be filled with water, stops filling water when the high-level float switches of the two side water tanks are activated, immediately turns to a water drainage process, opens the water outlet valve of the drainage pump and the drainage pump, stops the water outlet valve of the drainage pump and closes all valves of each tank when the water is drained to the low-level float switches of the two side water tanks to reset.
The invention provides an automatic sinking and floating control system and a control method of a floating access door, wherein a central water cabin is arranged through an access door body, side water cabins and adjusting water cabins are respectively arranged at the upper and lower sides in the door body, and a valve system connected with the central water cabin, the side water cabins and the adjusting water cabins is adopted, so that the access door can float or sink through the adjusting valve body, meanwhile, a level meter in the adjusting water cabin is adopted, a main control cabinet can automatically control the access door to sink or float, meanwhile, the inclination angle of the door body is detected through an inclination angle sensor and the opening size of each valve body is automatically adjusted, the stable state of the door body is achieved, and the door body can be checked through a routine checking mode.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of an access door of the present invention;
fig. 2 is a schematic connection diagram of the sinking and floating control system of the present invention.
Wherein: the water level control system comprises a central water tank 1, a first side water tank 2, a second side water tank 3, a first regulation water tank 4, a second regulation water tank 5, a vent pipe 6, a first water inlet valve 7, a second water inlet valve 8, a first balance valve 9, a second balance valve 10, a first side water tank water inlet and outlet valve 11, a second side water tank water inlet and outlet valve 12, a first regulation water tank water inlet and outlet valve A13, a first regulation water tank water inlet and outlet valve B14, a second regulation water tank water inlet and outlet valve A15, a second regulation water tank water inlet and outlet valve B16, a drainage pump water outlet valve 17, a drainage pump 18, a side water tank high-level float switch 19, a side water tank low-level float switch 20, a regulation water tank liquid level meter 21, a main control cabinet 22, an inclination angle sensor 23, a power cabinet 24, a valve body control box 25 and a water level meter 27.
Detailed Description
The technical scheme of the invention is explained in detail in the following by combining the drawings and the embodiment.
As shown in figures 1 and 2, a floating access door comprises an access door body, wherein a central water tank 1 is arranged at the center of the bottom in the access door body, a first side water tank 2 and a second side water tank 3 are respectively arranged at the upper part of the central water tank 1 at the upper and lower sides in the door body, a first regulating water tank 4 and a second regulating water tank 5 are respectively arranged at the two sides of the first side water tank 2 and the second side water tank 3, a first inlet valve 7 and a second inlet valve 8 which are respectively connected with the upstream side and the downstream side are arranged on the central water tank 1, the first side water tank 2, the second side water tank 3, the first regulating water tank 4 and the second regulating water tank 5, a first balance valve 9 is connected with a pipeline which penetrates through the access door body at the upper and lower streams, the central water tank 1, the first side water tank 2 and the second side water tank 3 are respectively connected through a first side water tank inlet and outlet valve 11 and a second side water outlet valve 12, the branch of the connecting pipeline of the first side water tank inlet and outlet valve 11 and the central water tank 1 is provided with a first regulating water tank inlet and outlet valve A13 connected with the first regulating water tank 4, the branch of the connecting pipeline of the second side water tank inlet and outlet valve 12 and the central water tank 1 is provided with a second regulating water tank inlet and outlet valve A15 connected with the second regulating water tank 5, the central water tank 1 is provided with a drainage pump outlet valve 17 and a drainage pump 18, the output end of the drainage pump 18 is positioned at the upper part of the access door, the upper and lower sides of the upper and lower parts are respectively provided with a first water inlet valve 7 and a second water inlet valve 8, when sinking is finished, the water level in the access door can be automatically leveled with the upper part or the lower part by keeping the first water inlet valve 7 or the second water inlet valve 8 open, the output end of the drainage pump 18 is arranged at the upper end of the access door, the water pressure met when the drainage of, the influence of the drainage water flow on organisms in the channel can be reduced.
The water inlet and outlet valve B14 of the first adjusting water tank is connected in parallel on the first adjusting water tank water inlet and outlet valve A13, the water inlet and outlet valve B16 of the second adjusting water tank is connected in parallel on the second adjusting water tank water inlet and outlet valve A15, the second balancing valve 10 of the parallel connection is arranged on the first balancing valve 9, the first balancing valve 9 and the second balancing valve 10 are used for enabling the upstream water level and the downstream water level of the access door to be consistent when the access door floats upwards, and the upstream water level and the downstream water level of the access door to be consistent when the access door sinks, and the first balancing valve 9 and the second balancing valve 10 are opened to save the water pumping operation when the access door floats upwards.
The automatic sinking and floating control system using the floating access door is characterized in that a regulating water tank liquid level meter 21 is arranged in the first regulating water tank 4 and the second regulating water tank 5, a side water tank high-level float switch 19 and a side water tank low-level float switch 20 are arranged in the first side water tank 2 and the second side water tank 3, an inclination angle sensor 23 is arranged on the upper portion of the access door on the upper side and the lower side, the regulating water tank liquid level meter 21, the side water tank high-level float switch 19, the side water tank low-level float switch 20, the inclination angle sensor 23 and the input end of a main control cabinet 22 are electrically connected, the output end of the main control cabinet 22 is electrically connected with a valve body control box 25, the valve body control box 25 and the main control cabinet 22 are powered by a power cabinet 24, the inclination angle sensor 23 is used for measuring the static inclination angle of the access door relative to the horizontal plane, the static inclination angle is converted into the inclination angle change by measuring the static gravity, the tilt angle sensor 23 is used for monitoring the attitude of the access door and calibrating the water level gauge, and is used for monitoring the attitude of the access door in a standby mode with the water level sensor.
The four corners of the two regulating water tanks of the regulating water tank liquid level meter 21 are respectively provided with one, and the regulating water tank liquid level meter 21 is convenient to maintain and replace by being electrically connected with the main control cabinet 22 through a water level meter junction box 26 arranged on the main deck.
The regulating water tank liquid level meter 21 is a drop-in type liquid level meter.
The main control cabinet 22 adopts a PLC (programmable logic controller), the PLC is electrically connected with an analog input/output module, the analog input is connected with a regulating water tank liquid level meter 21 to sense and regulate the liquid level of the water tank in real time, the analog output module is connected with a valve body control box 25 to regulate the opening degree of each valve body, and an HMI (human machine interface) display screen connected with the PLC is arranged on the main control cabinet 22;
the first regulating water tank water inlet and outlet valve A13, the first regulating water tank water inlet and outlet valve B14, the second regulating water tank water inlet and outlet valve A15 and the second regulating water tank water inlet and outlet valve B16 are regulating valves and are electrically connected with the analog quantity output module.
The sinking and floating control method using the floating type access door automatic sinking and floating control system comprises the following specific steps:
STEP1, the control mode is divided into manual mode, automatic mode, emergency mode and routine checking mode;
when STEP2 is in the sinking and floating operation, the PLC in the main control cabinet 22 firstly judges which mode is currently in, when in the manual mode, the PLC enters STEP3, when in the automatic mode, the PLC enters STEP4, and when in the routine checking mode, the PLC enters STEP 5; when the system detection condition reaches the emergency mode, STEP6 is entered,
STEP3, when the floating and sinking operation is carried out in the manual mode, the HMI display screen is manually operated to open the valve bodies in sequence, so that the central water tank 1, the first side water tank 2, the second side water tank 3, the first regulating water tank 4 and the second regulating water tank 5 are sequentially subjected to water inlet and water discharge;
when STEP4 and the automatic mode sink-and-float operation are carried out, the PLC controls the valve bodies to be opened in sequence, so that the central water tank 1, the first side water tank 2, the second side water tank 3, the first regulating water tank 4 and the second regulating water tank 5 can be used for water inlet and water outlet in sequence, and the opening of the valve bodies of the first regulating water tank 4 and the second regulating water tank 5 can be automatically regulated according to the liquid level information transmitted by the regulating water tank liquid level meter 21 and the current inclination angle of the access door transmitted by the inclination angle sensor 23;
STEP5, when the access door is in a routine inspection mode, the system automatically realizes the water filling or discharging process of the central water tank 1, the first side water tank 2 and the second side water tank 3 in the access door, and realizes sinking and floating;
STEP6, control system judge according to inclination sensor 23 transmission data when floating gate pitch, heeling angle surpass the setting value, the system enters emergency operation mode and sends out the acousto-optic warning, start emergency operation procedure, and all valves and pumps are closed to the system automation, are equipped with urgent stop button on the main control cabinet 22, and when HMI display screen damages and PLC still is in operation this moment, accessible pushes down urgent stop button, triggers urgent stop, makes PLC be in the stop condition, and each valve is closed, the pump stops.
The specific process of STEP3 is as follows:
STEP3.1, when the access door sinks, opening a first water inlet valve 7 and a second water inlet valve 8, starting filling water into a central water cabin 1, after the central water cabin 1 is full, opening a first side water cabin water inlet and outlet valve 11 and a second side water cabin water inlet and outlet valve 12, starting water inlet into a first side water cabin 2 and a second side water cabin 3, after the two side water cabins are full, opening a first regulating water cabin water inlet and outlet valve A13, a first regulating water cabin water inlet and outlet valve B14, a second regulating water cabin water inlet and outlet valve A15 and a second regulating water cabin water inlet and outlet valve B16, starting water inlet into a first regulating water cabin 4 and a second regulating water cabin 5, and after the two regulating water cabins are sunk to the preset access door, closing the first water inlet valve 7 connected with the upstream side and keeping the second water inlet valve 8 connected with the downstream side open;
STEP3.2, when the access door floats upwards, closing a first water inlet valve 7 and a second water inlet valve 8, opening a first balance valve 9 and a second balance valve 10, closing the first balance valve 9 and the second balance valve 10 after upstream and downstream water levels are consistent, closing a first side water compartment water inlet and outlet valve 11 and a second side water compartment water inlet and outlet valve 12, simultaneously opening a first regulating water compartment water inlet and outlet valve A13, a first regulating water compartment water inlet and outlet valve B14, a second regulating water compartment water inlet and outlet valve A15, a second regulating water compartment water inlet and outlet valve B16 and a drainage pump water outlet valve 17 of two regulating water compartments, starting a drainage pump 18 access door to start water drainage and floating, when the two connecting water compartments are emptied, closing the first regulating water compartment water inlet and outlet valve A13, the first regulating water compartment water inlet and outlet valve B14, the second regulating water compartment water inlet and outlet valve A15 and the second regulating water compartment water inlet and outlet valve B16, opening a first side water inlet and outlet valve A11 and a second side water outlet valve B3512 of the two side water compartments to drain water compartments, and after the access door floats to the preset no-load waterline, closing the water inlet and outlet valves of all the cabins, and closing the drainage pump 18 and the drainage pump outlet valve 17.
The specific process of STEP4 is as follows:
STEP4.1, when the access door sinks in the automatic mode, the system firstly controls a first water inlet valve 7 and a second water inlet valve 8 to open, the central water tank 1 starts to fill water, when the time is preset, a first side water tank water inlet and outlet valve 11 and a second side water tank water inlet and outlet valve 12 are opened, when the water level reaches the low level of the side water tank, a side water tank low level float switch 20 is activated, the system automatically alarms and displays, when the side water tank reaches the high level, a side water tank high level float switch 19 is activated, the system automatically alarms and displays, at the moment, the system receives two switch trigger signals of the side water tank high level float switch 19 and the side water tank low level switch 20, the system automatically opens a first regulating water tank water inlet and outlet valve A13, a first regulating water tank water inlet and outlet valve B14, a second regulating water tank water inlet and outlet valve A15 and a second regulating water tank water inlet and outlet valve B16, the two regulating water tanks start to fill water, and a regulating water tank liquid level meter 21 arranged at four corners of the regulating water tanks detect the liquid level of the, when the regulating reservoir liquid level meter 21 detects that the water level is sunk to the preset water level, the first water inlet valve 7 and the second water inlet valve 8 are closed
In the process of adjusting the water filling of the water tank, the system automatically detects the inclination data of the access door transmitted by the inclination angle sensor 23, when the inclination angle is within the set allowable range, the PLC in the main control cabinet 22 sends out a PID (proportion integration differentiation) adjusting signal according to the inclination direction and the angle fed back by the inclination angle sensor 23 to adjust the opening degree of the first adjusting water tank water inlet and outlet valve A13, the first adjusting water tank water inlet and outlet valve B14, the second adjusting water tank water inlet and outlet valve A15 and the second adjusting water tank water inlet and outlet valve B16, so that the speeds of the first adjusting water tank 4 and the second adjusting water tank 5 are inconsistent, the inclination of the access door is reduced, when the inclination angle exceeds the preset range, the system sends out an audible and visual alarm, automatically switches to an emergency operation mode, enters STEP6, and controls each valve by switching to a manual mode, so that the access door is;
STEP4.2, when the access door floats upwards in the automatic mode, the system controls the drainage pump outlet valve 17 to be opened, when the opening degree of the drainage pump outlet valve 17 reaches 100%, the system automatically starts the drainage pump 18, simultaneously closes the first side water tank inlet and outlet valve 11 and the second side water tank inlet and outlet valve 12, opens the first regulation water tank inlet and outlet valve A13, the first regulation water tank inlet and outlet valve B14, the second regulation water tank inlet and outlet valve A15 and the second regulation water tank inlet and outlet valve B16, the two regulation water tanks start drainage, when the drainage reaches the preset minimum water level of the regulation water tank liquid level meter 21, the first side water tank inlet and outlet valve 11 and the second side water tank inlet and outlet valve 12 are opened, the two side water tanks start drainage, when the side water tanks drain to all the side water tank high-level float switches 19 and the side water tank low-level float switches 20, the access door reaches the preset no-load waterline, and the system controls 18 to stop, controlling the drainage pump outlet valve 17 to be closed, and closing all valves of each chamber at the same time;
when the water drainage process of the adjusting water tank is carried out, the system automatically detects the inclination data of the access door transmitted by the inclination angle sensor 23, when the inclination angle is within the set allowable range, the PLC in the main control cabinet 22 sends out PID adjusting signals according to the inclination direction and the inclination angle fed back by the inclination angle sensor 23 to adjust the speed of the first adjusting water tank water inlet and outlet valve A13, the first adjusting water tank water inlet and outlet valve B14, the second adjusting water tank water inlet and outlet valve A15 and the opening degree of the second adjusting water tank water inlet and outlet valve B16, so that the speed of the first adjusting water tank 4 is inconsistent with that of the second adjusting water tank 5, the inclination of the access door is reduced, when the inclination angle exceeds the preset range, the system sends out audible and visual alarm, automatically switches to an emergency operation mode, enters STEP6, and controls the valves by switching to a manual mode, so that the access door is balanced.
The specific process of STEP5 is as follows:
when the access door is in a routine inspection mode, the system automatically controls the water filling to the central water tank 1 and the two side water tanks, stops the water filling when the activation of the high-level float switches 19 of the two side water tanks is achieved, immediately turns to the water discharging process, opens the water outlet valve 17 of the drainage pump and the drainage pump 18, stops the water outlet valve 17 of the drainage pump and closes all valves of each tank when the water is discharged to the reset of the low-level float switches 20 of the two side water tanks.
Claims (10)
1. The floating type access door comprises an access door body and is characterized in that a central water tank (1) is arranged in the center of the bottom in the access door body, a first side water tank (2) and a second side water tank (3) are respectively arranged on the upper portions of the central water tank (1) on the upper portion of the upper portion and the lower portion of the door body on the upper portion and the lower portion of the door body in the lower portion, a first adjusting water tank (4) and a second adjusting water tank (5) are respectively arranged on the two sides of the first side water tank (2) and the second side water tank (3), vent pipes (6) are respectively arranged on the upper portions of the central water tank (1), the first side water tank (2), the second side water tank (3), the first adjusting water tank (4) and the second adjusting water tank (5), a first water inlet valve (7) and a second water inlet valve (8) which are respectively connected with the upper portion and the lower portion are arranged on the central water tank (1), a first balance, The second side water tank (3) is connected with the first side water tank inlet and outlet valve (11) and the second side water tank inlet and outlet valve (12) respectively, a first regulating water tank inlet and outlet valve A (13) connected with the first regulating water tank (4) is arranged on a branch of a connecting pipeline of the first side water tank inlet and outlet valve (11) and the central water tank (1), a second regulating water tank inlet and outlet valve A (15) connected with the second regulating water tank (5) is arranged on a branch of a connecting pipeline of the second side water tank inlet and outlet valve (12) and the central water tank (1), a drainage pump outlet valve (17) and a drainage pump (18) are arranged on the central water tank (1), and the output end of the drainage pump (18) is positioned at the upper part of the access door.
2. The floating access door of claim 1, wherein the first regulating reservoir inlet and outlet valve A (13) is provided with a first regulating reservoir inlet and outlet valve B (14) connected in parallel, the second regulating reservoir inlet and outlet valve A (15) is provided with a second regulating reservoir inlet and outlet valve B (16) connected in parallel, and the first balance valve (9) is provided with a second balance valve (10) connected in parallel.
3. The automatic sinking and floating control system of the floating type access door according to claim 2 is characterized in that a regulating water tank liquid level meter (21) is arranged in the first regulating water tank (4) and the second regulating water tank (5), a side water tank high-level float switch (19) and a side water tank low-level float switch (20) are arranged in the first side water tank (2) and the second side water tank (3), the upper portion of the access door is provided with an inclination angle sensor (23) on the upper side and the lower side, the regulating water tank liquid level meter (21), the side water tank high-level float switch (19), the side water tank low-level float switch (20) and the inclination angle sensor (23) are electrically connected with the input end of the main control cabinet (22), the output end of the main control cabinet (22) is electrically connected with the valve body control box (25), and the power supply is provided for the valve body control box (25) and the main control cabinet (22) through the power cabinet (24).
4. The automatic sinking and floating control system of the floating access door as claimed in claim 3, wherein the regulating reservoir level meter (21) is provided with one each at four corners of two regulating reservoirs.
5. The automatic sinking and floating control system of the floating access door as claimed in claim 4, wherein the regulating tank level meter (21) is a drop-in level meter.
6. The automatic sinking and floating control system of the floating type access door according to claim 5, characterized in that a PLC is adopted as a controller of the main control cabinet (22), the PLC is electrically connected with the analog input and output module, and an HMI display screen connected with the PLC is arranged on the main control cabinet (22);
and the first regulating water tank water inlet and outlet valve A (13), the first regulating water tank water inlet and outlet valve B (14), the second regulating water tank water inlet and outlet valve A (15) and the second regulating water tank water inlet and outlet valve B (16) are regulating valves and are electrically connected with the analog quantity output module.
7. The sinking and floating control method using the automatic sinking and floating control system of the floating access door of claim 6 is characterized by comprising the following specific steps:
STEP1, the control mode is divided into manual mode, automatic mode, emergency mode and routine checking mode;
when STEP2 is in sinking and floating operation, the PLC in the main control cabinet (22) firstly judges which mode is currently in, when the PLC is in a manual mode, the PLC enters STEP3, when the PLC is in an automatic mode, the PLC enters STEP4, and when the PLC is in a routine checking mode, the PLC enters STEP 5; when the system detection condition reaches the emergency mode, STEP6 is entered,
when the floating and sinking operation is carried out in the STEP3 and the manual mode, the HMI display screen is manually operated to enable the valve bodies to be opened in sequence, so that the central water tank (1), the first side water tank (2), the second side water tank (3), the first adjusting water tank (4) and the second adjusting water tank (5) are sequentially subjected to water inlet and water discharge;
when STEP4 and the automatic mode sink-and-float operation are carried out, the PLC controls the valve bodies to be opened in sequence, so that the central water tank (1), the first side water tank (2), the second side water tank (3) and the first adjusting water tank (4) and the second adjusting water tank (5) can be used for feeding water and draining water in sequence, and the opening degree of the valve bodies of the first adjusting water tank (4) and the second adjusting water tank (5) can be automatically adjusted according to the liquid level information transmitted by the adjusting water tank liquid level meter (21) and the current inclination angle of the access door transmitted by the inclination angle sensor (23);
STEP5, when the access door is in a routine inspection mode, the system automatically realizes the water filling or discharging process of the central water tank (1), the first side water tank (2) and the second side water tank (3) in the access door, and realizes sinking and floating;
STEP6, the control system judges that when the trim and the roll angle of the floating gate exceed the set values according to the data transmitted by the tilt angle sensor (23), the system enters an emergency operation mode and sends out an acousto-optic alarm, an emergency operation program is started, and the system automatically closes all valves and pumps.
8. The sinking and floating control method of the automatic sinking and floating control system of the floating access door according to claim 7, wherein the STEP3 comprises the following specific STEPs:
STEP3.1, when the access door sinks, the first water inlet valve (7) and the second water inlet valve (8) are opened, the central water tank (1) starts to be filled with water, after the central water tank (1) is filled, the water inlet and outlet valve (11) of the first side water tank and the water inlet and outlet valve (12) of the second side water tank are opened, the water inlet of the first side water tank (2) and the water inlet of the second side water tank (3) are started, when the two side water chambers are full, the water inlet and outlet valve A (13), the water inlet and outlet valve B (14), the water inlet and outlet valve A (15) and the water inlet and outlet valve B (16) of the first adjusting water chamber are opened, the first adjusting water chamber (4) and the second adjusting water chamber (5) start to feed water, when the two regulating water cabins enter water and sink to the preset access door, a first water inlet valve (7) connected with the upstream side is closed, and a second water inlet valve (8) connected with the downstream side is kept open;
STEP3.2, when the access door floats upwards, closing a first water inlet valve (7) and a second water inlet valve (8), opening a first balance valve (9) and a second balance valve (10), closing the first balance valve (9) and the second balance valve (10) after upstream and downstream water levels are consistent, closing a first side water tank water inlet and outlet valve (11) and a second side water tank water inlet and outlet valve (12), simultaneously opening a first adjusting water tank water inlet and outlet valve A (13), a first adjusting water tank water inlet and outlet valve B (14), a second adjusting water tank water inlet and outlet valve A (15), a second adjusting water tank water inlet and outlet valve B (16) and a drainage pump water outlet valve (17) of the two adjusting water tanks, starting a drainage pump (18) to access the door to drain water, and closing the first adjusting water tank water inlet and outlet valve A (13), the first adjusting water tank water inlet and outlet valve B (14), the second adjusting water tank water inlet and outlet valve A (15) and the second adjusting water tank water inlet and outlet valve B (16) after the two connecting water tanks are emptied, and opening a first side water tank water inlet and outlet valve (11) and a second side water tank water inlet and outlet valve (12) of the two side water tanks for draining water, closing the water inlet and outlet valves of the tanks and closing a draining pump (18) and a draining pump water outlet valve (17) after the access door floats to a preset no-load waterline.
9. The sinking and floating control method of the automatic sinking and floating control system of the floating access door according to claim 7, wherein the STEP4 comprises the following specific STEPs:
STEP4.1, when the access door sinks in an automatic mode, the system firstly controls a first water inlet valve (7) and a second water inlet valve (8) to be opened, the central water tank (1) starts to fill water, when the preset time is reached, a first side water tank water inlet and outlet valve (11) and a second side water tank water inlet and outlet valve (12) are opened, when the water level reaches the low level of the side water tank, a side water tank low level floating ball switch (20) is activated, the system automatically alarms and displays, when the side water tank reaches the high level, a side water tank high level floating ball switch (19) is activated, the system automatically alarms and displays, at the moment, the system receives two switch trigger signals of the side water tank high level floating ball switch (19) and the side water tank low level floating ball switch (20), and automatically opens a first regulating water tank water inlet and outlet valve A (13), a first regulating water tank water inlet and outlet valve B (14), a second regulating water tank water inlet and outlet valve A (15) and a second regulating water tank water inlet and outlet valve B (16), the two regulating water tanks start to be filled with water, regulating water tank liquid level meters (21) arranged at four corners of the regulating water tanks detect the liquid level of the water tanks, and when the regulating water tank liquid level meters (21) detect that the water tanks sink to a preset water level, the first water inlet valve (7) and the second water inlet valve (8) are closed
In the process of adjusting the water filling of the water tank, the system automatically detects the inclination data of the access door transmitted by the inclination angle sensor (23), when the inclination angle is within a set allowable range, the PLC in the main control cabinet (22) sends out PID (proportion integration differentiation) adjusting signals according to the inclination direction and the angle fed back by the inclination angle sensor (23) to adjust the opening degree of the first adjusting water tank water inlet and outlet valve A (13), the first adjusting water tank water inlet and outlet valve B (14), the second adjusting water tank water inlet and outlet valve A (15) and the second adjusting water tank water inlet and outlet valve B (16), so that the speeds of the first adjusting water tank (4) and the second adjusting water tank (5) are inconsistent, the access door is inclined and becomes small, when the inclination angle exceeds the preset range, the system sends out audible and visual alarm, automatically switches to an emergency operation mode, enters STEP6, and controls each valve by switching to a manual mode, so that the access door is balanced;
STEP4.2, when the access door floats upwards in an automatic mode, the system controls a drainage pump outlet valve (17) to be opened, when the opening degree of the drainage pump outlet valve (17) reaches 100%, the system automatically starts a drainage pump (18), simultaneously closes a first side water tank inlet and outlet valve (11) and a second side water tank inlet and outlet valve (12), opens a first regulation water tank inlet and outlet valve A (13), a first regulation water tank inlet and outlet valve B (14), a second regulation water tank inlet and outlet valve A (15) and a second regulation water tank inlet and outlet valve B (16), two regulation water tanks start drainage, when the drainage reaches a preset lowest water level of a regulation water tank liquid level meter (21), the first side water tank inlet and outlet valve (11) and the second side water tank inlet and outlet valve (12) are opened, two side water tanks start drainage, and when side water tanks drain water to all side water tank high-level float ball switches (19) and side water tank low-level switches (20) without activation, when the access door reaches a preset no-load waterline, the system controls the drainage pump (18) to stop, controls the drainage pump to close the water outlet valve (17), and closes all valves of each cabin at the same time;
when the water discharging process of the adjusting water tank is carried out, the system automatically detects the inclination data of the access door transmitted by the inclination angle sensor (23), when the inclination angle is within a set allowable range, the PLC in the main control cabinet (22) sends out PID adjusting signals according to the inclination direction and the inclination angle fed back by the inclination angle sensor (23) to adjust the opening degree of the first adjusting water tank water inlet and outlet valve A (13), the first adjusting water tank water inlet and outlet valve B (14), the second adjusting water tank water inlet and outlet valve A (15) and the second adjusting water tank water inlet and outlet valve B (16), so that the speeds of the first adjusting water tank (4) and the second adjusting water tank (5) are inconsistent, the access door is inclined and becomes small, when the inclination angle exceeds the preset range, the system sends out sound-light alarm, automatically switches to an emergency operation mode, enters STEP6, and controls the valves by switching to a manual mode, so that the access door is balanced.
10. The sinking and floating control method of the automatic sinking and floating control system of the floating access door according to claim 8, wherein the STEP5 comprises the following specific STEPs:
when the access door is in a routine inspection mode, the system automatically controls the water filling to the central water tank (1) and the two side water tanks, stops filling water when the activation of the high-level float switches (19) of the two side water tanks is achieved, immediately turns to the water discharging process, opens the water discharging pump outlet valve (17) and the water discharging pump (18), stops the water discharging pump (18) and the water discharging pump outlet valve (17) when the water discharging to the low-level float switches (20) of the two side water tanks is reset, and closes all valves of each tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110282022.1A CN113106950A (en) | 2021-03-16 | 2021-03-16 | Automatic sinking and floating control system and control method for floating access door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110282022.1A CN113106950A (en) | 2021-03-16 | 2021-03-16 | Automatic sinking and floating control system and control method for floating access door |
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| CN113106950A true CN113106950A (en) | 2021-07-13 |
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| CN202110282022.1A Pending CN113106950A (en) | 2021-03-16 | 2021-03-16 | Automatic sinking and floating control system and control method for floating access door |
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Application publication date: 20210713 |