CN112722229B - Operation control method of oil stain transfer vehicle - Google Patents

Operation control method of oil stain transfer vehicle Download PDF

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Publication number
CN112722229B
CN112722229B CN202011487354.5A CN202011487354A CN112722229B CN 112722229 B CN112722229 B CN 112722229B CN 202011487354 A CN202011487354 A CN 202011487354A CN 112722229 B CN112722229 B CN 112722229B
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China
Prior art keywords
sewage
controller
pump
hose
storage cabinet
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CN202011487354.5A
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CN112722229A (en
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王永敬
熊友元
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Anhui Tianjian Biological Environmental Protection Co ltd
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Anhui Tianjian Environmental Protection Co ltd
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Publication of CN112722229A publication Critical patent/CN112722229A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
    • B63J4/006—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating waste water or sewage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems

Abstract

The invention relates to the field of sewage treatment equipment, in particular to an operation control method of an oil stain transfer vehicle. The operation control method respectively controls oil suction and oil discharge; four working processes of sewage suction and sewage discharge; the control method of the sewage suction process comprises the following steps: s1: initializing and setting; s2: switching a related pipeline for sewage suction into a conducting state; s3: a release hose; s4: towing the hose onto the vessel; s5, finishing pipe releasing and butting pipelines; s6: starting a pump mechanism; s7: re-reeling the hose; the operation steps of the sewage discharge process are as follows: s01: equipment initialization; s02: mixing and stirring the sewage uniformly; s03: opening the pump body for pollution discharge; s04: monitoring the liquid level of the sewage storage cabinet; s05: restoring the initial state; the automation degree of the oil stain transfer vehicle using the control method is greatly improved, the efficiency of the oil stain transfer vehicle can be obviously improved, and the workload of operators is reduced.

Description

Operation control method of oil stain transfer vehicle
Technical Field
The invention relates to the field of sewage treatment equipment, in particular to an operation control method of an oil stain transfer vehicle.
Background
During operation, a large amount of domestic sewage and waste materials are generated by ships, and the sewage and waste materials comprise sewage and waste materials generated in personnel or article cleaning processes, sewage and waste materials generated in cooking processes, excrement generated in personnel excretion processes and the like. These contaminants typically flow into the domestic sewage storage tank through the sewer system on the vessel. Because the ship can not carry out harmless treatment on the living needs, the ship can discharge pollutants in a living sewage storage tank after being supplied to the shore; or a special sewage transfer ship is used for extracting and transferring the sewage in the ship in the sailing process.
The existing ship sewage storage tank is simple in structure, only serves as a temporary storage container for pollutants, and is sucked and discharged by a dung suction truck when the ship sewage storage tank is in shore or transported, so that pollutant pretreatment cannot be carried out. The domestic sewage often contains a large amount of organic matters, and the pollutants can be biologically fermented in the storage tank to generate a large amount of flammable and explosive gases, so that great potential safety hazards are brought to the storage process of the domestic sewage. Meanwhile, solid matters in the sewage may be adhered to the inner wall of the container during temporary storage, so that a pipeline is blocked, and the sewage is not discharged. Meanwhile, the existing sewage storage tank needs a person to watch on the sewage storage tank on a regular basis, the internal reserves are checked, and the person needs to watch on and operate the sewage storage tank in the sewage discharge process.
Besides the sewage storage facilities on the ship, onshore sewage transfer and collection devices and the like have disadvantages. For example, the collection and transfer of the existing onshore sewage are mainly completed by a dung suction truck which needs to be butted with a sewage storage tank on a ship through a pipeline when in use and then the pipeline is recovered after the completion of sewage discharge and storage. The release and recovery of the existing pipelines are mostly finished by manpower, which is time-consuming, labor-consuming, dirty and smelly, and may cause sewage leakage to pollute a ship body, a water body, a bank or a wharf.
In the ship sewage collecting and transferring process, the automation degree of various related devices is relatively low, manual operation butt joint is needed, and flow statistics, cost settlement and the like are performed manually. These all reduce the efficiency of the sewage collection and transportation work greatly, and the low efficiency is reflected in the high cost of the sewage collection and transportation.
The high cost of sewage recovery, transportation and treatment leads to illegal and untidy behaviors such as disorder discharge and the like in part of shipping enterprises. If the pollutants on the ship are discharged into the water body, serious water body pollution accidents can be caused. Therefore, governments in various parts of China require overall planning and acceleration of the construction of onshore fixed receiving facilities and overwater mobile receiving capacity; a ship pollutant receiving system which takes onshore fixed facility receiving as a main body and takes overwater flow receiving as supplement is gradually formed, the ship pollutant receiving capacity of regions such as port wharfs in jurisdictions is comprehensively improved, the effect of 'being fully received due to receiving' is achieved, and effective links of ship pollutant receiving, transferring and disposing links are well made. Although huge sewage collection and transportation demands exist, the operation efficiency, safety and the like of the existing ship sewage collection and transportation system and equipment are obviously insufficient, and the market demands cannot be met.
Disclosure of Invention
In order to overcome the problems in the prior art, the operation control method of the oil stain transfer vehicle provided by the invention has the advantages that the automation degree of the oil stain transfer vehicle adopting the control method is greatly improved, the efficiency of the oil stain transfer vehicle can be obviously improved, and the work load of operators is reduced.
The technical scheme provided by the invention comprises the following technical contents:
an operation control method of an oil stain transfer vehicle, which respectively controls oil suction and oil removal; four working processes of sewage suction and sewage discharge;
the control method of the sewage suction process comprises the following steps:
s1: initializing the oil stain transfer vehicle, and closing each pump body and each valve body;
s2: switching a related pipeline for sewage suction into a conducting state;
s3: releasing the hose;
s4: towing the hose onto the vessel;
s5: the hose is released to reach the required length, the hose is put, and the hose is butted with a sewage discharge pipeline on the ship;
s6: starting a pump mechanism, and pumping the sewage on the ship into a sewage storage cabinet of an oil stain transfer trolley;
s7: finishing the sewage suction process, and re-winding the hose;
wherein, the operation steps of the sewage discharge process are as follows:
s01: keeping the oil stain transfer vehicle in an initialization state, and communicating a drain outlet of the pump body with a sewage treatment tank;
s02: uniformly mixing and stirring the sewage in the sewage storage cabinet in the oil stain transfer trolley;
s03: switching the pipeline and the valve body related to sewage discharge into a conducting state, and starting the pump body to discharge sewage;
s04: monitoring the liquid level of the sewage storage cabinet in the sewage discharge process; after the lowest liquid level is reached, the pump body stops running;
s05: re-closing the related valve body and recovering the oil stain transfer trolley to the initial state;
the fluid suction process is the same with sewage suction process, and fluid pumps to fluid storage tank, the difference of fluid elimination process and sewage discharge process lies in: in the oil liquid removing process, the stirring and mixing process is not carried out on the oily waste liquid.
Further, oil is sucked and discharged; the four working processes of sewage suction and sewage discharge are executed by controlling related execution elements by a third controller, wherein the execution elements comprise a first exhaust valve, a second exhaust valve, a first three-way valve, a second three-way valve, a fourth stop valve and a fifth stop valve; the sewage pump comprises a second self-sucking pump, a second sewage pump, a first motor, a liquid level meter and a second motor; the first exhaust valve and the second exhaust valve are respectively used for balancing the air pressure in the sewage storage cabinet and the oil storage cabinet; the first three-way valve is used for switching water inlet passages of the sewage storage cabinet and the oil storage cabinet; the second three-way valve is used for switching the discharge passages of the sewage storage cabinet and the oil storage cabinet; the fourth stop valve is used for controlling the on-off of the suction process of the second self-sucking pump; the fifth stop valve is used for controlling the on-off of the sewage discharging process of the second sewage discharging pump; the liquid level meter is used for detecting the real-time liquid levels of pollutants in the sewage storage cabinet and the oil storage cabinet; the first motor is used for driving the hose retracting mechanism to operate; the second motor is used for driving the stirring device in the sewage storage cabinet to operate; the third controller is also electrically connected with a third switch controller module, and the third switch controller module is used for inputting manual operation instructions to the third controller.
Further, the third controller and the actuator perform the sewage pumping process as follows:
s1: in an initial state, an oil liquid storage cabinet and a sewage storage cabinet of the oil stain transfer trolley are vacant; the first exhaust valve, the second exhaust valve, the fourth stop valve, the fifth stop valve, the self-priming pump, the sewage pump, the first motor and the second motor are all in a closed state;
s2: an onshore operator sends a command of pumping the sewage to a third controller through a third switch control module, and the third controller controls the first three-way valve to be switched to a state of conducting a sewage pumping pipeline according to the relevant command;
s3: after the first three-way valve is switched, an onshore operator sends a pipe placing instruction to a third controller through a third switch control module; the third controller drives the first motor to rotate reversely, and the hose is released;
s4: during hose release, an operator pulls the hose and hands it over to ship personnel;
s5: after the hose is released to reach the required length, an operator on the shore issues a hose release stopping instruction to the third controller through the third switch control module, when the third controller receives the hose release stopping instruction of the operator or the hose release reaches the maximum limit, the third controller controls the first motor to stop rotating, the hose release is finished, and a worker on the ship butts the quick connector of the hose with the sewage discharge interface on the ship;
s6: after the pipe discharging process is finished, an operator on the shore starts a second self-sucking pump to suck the sewage on the ship into a sewage storage cabinet;
s7: after the sewage pumping process is finished, an operator on the ship disconnects the quick connector; the shore operating personnel assigns the instruction to the third controller module through the third switch control module, and the first motor of third control module drive antiport rolls up the hose, and after the hose roll-up was accomplished, the shore operating personnel closed first motor through switch control module.
Further, the sewage suction process in step S6 includes the steps of:
s61: the third controller obtains the total reserve volume V of the sewage on the shipShip with a detachable hullThe third controller is based on the volume V of the sewage storage tankCabinetAnd VShip with a detachable hullThe relationship of (a) determines the strategy of the current round of pumping:
(1) when V isShip with a detachable hull≤VCabinetThe maximum suction volume Vmax of the second self-priming pump wheel is VShip with a detachable hullCompletely pumping out the sewage on the ship at one time;
(2) when V isShip with a detachable hull＞VCabinetThen, the maximum suction volume of the second self-priming pump wheel is Vmax ═ VCabinetStep-by-step pumping of the sewage on the ship;
s62: after the strategy is determined, the third controller respectively controls the second exhaust valve to be opened, the fourth stop valve to be opened and the second self-priming pump to operate to suck the sewage;
s63: in the sewage suction process, the flow meter counts the flow of fluid flowing through the self-priming pump, and sends a flow counting result to the third controller, and the third controller determines the running state of the second self-priming pump according to the relation between the maximum suction volume Vmax and the real-time flow Vi in the current round of suction strategy; the operation control strategy of the second self-priming pump is as follows:
(1) when Vmax-Vi is larger than delta V, the second self-priming pump continues to operate;
(2) when Vmax-Vi is less than or equal to delta V, the second self-priming pump stops running;
wherein, Δ V is the maximum loss value of the water receiving and water obtaining in the pumping process under the condition of considering the viscosity loss of the pipeline and the equipment, the water receiving refers to the fluid volume extracted from the ship, and the water obtaining refers to the fluid volume stored in the storage cabinet;
s64: after the second self-priming pump stops operating, the third controller controls the fourth stop valve to close, and the second exhaust valve is closed; the pumping process is completed.
Further, the third controller and the actuator perform the sewage pumping process as follows:
s01: an operator moves the transfer trolley to a position near the sewage treatment station, and an outlet of the sewage discharge pump is connected with a sewage pipeline in a sewage pool; in an initial state, the second sewage pump, the second exhaust valve, the fourth stop valve and the second motor are all in a closed state;
s02: an operator sends a sewage discharge instruction to a third controller through a third switch control module, and the third controller controls a second motor to operate for a specified period to stir and uniformly mix the sewage in the sewage storage cabinet;
s03: after the blending is finished, the third controller respectively switches the second three-way valve to enable the sewage discharge pipeline to be conducted, the second exhaust valve and the fifth stop valve are opened, and the second sewage pump operates; discharging the sewage from the sewage storage cabinet to a sewage treatment tank;
s04: in the sewage discharge process, the second liquid level meter monitors the real-time liquid level h in the sewage storage cabinet, and the third controller receives the detection result of the liquid level meter and makes the following judgment according to the result:
(1) when the real-time liquid level h is larger than or equal to h0, the second sewage pump continues to operate;
(2) when the real-time liquid level h is less than h0, the second sewage pump stops running;
h0 is an empirical value, h0 is the historical minimum level of fluid in the sewage storage tank after the second sewage pump discharges sewage;
s05: and after the second sewage pump stops operating, the third controller controls the second exhaust valve and the fifth stop valve to be closed, so that the sewage discharge process is completed.
Further, the greasy dirt transfer car (buggy) includes: the device comprises a chassis, an oil storage cabinet, a sewage storage cabinet, a suction pump mechanism, a pipe retraction and release mechanism, a discharge pump mechanism, a fourth stop valve, a fifth stop valve and a third control box;
the top of the oil liquid storage cabinet is provided with a first exhaust valve; the top of the sewage storage cabinet is provided with a second exhaust valve; the suction pump mechanism comprises a second self-suction pump, a hose, a suction pipeline and a first three-way valve, and the end part of the hose is provided with a quick joint for connecting with the ship sewage storage device; the suction pipeline comprises a first suction pipeline and a second suction pipeline, an outlet of the second self-sucking pump is communicated with one ends of the first suction pipeline and the second suction pipeline through a first three-way valve respectively, the other end of the first suction pipeline extends into an inner cavity of the oil storage cabinet, and the other end of the second suction pipeline extends into an inner cavity of the sewage storage cabinet.
The drain pump mechanism comprises a second drain pump, a drain pipe and a second three-way valve, and the drain pipe comprises a first drain pipe and a second drain pipe; one end of the first discharge pipeline extends to the bottom of the inner cavity of the oil liquid storage cabinet; one end of the second sewage draining pipeline extends to the bottom of the sewage storage cabinet, and the other ends of the first sewage draining pipeline and the second sewage draining pipeline are communicated with an inlet of the second sewage draining pump through a second three-way valve.
The fourth stop valve is positioned at the inlet of the second self-sucking pump and used for controlling the on-off of the oil stain sucking process; and the fifth stop valve is positioned at the outlet of the second sewage pump and used for controlling the on-off of the oil stain discharge process.
The third control box comprises a third controller and a third switch control module; the third switch control module is used for sending a manual control instruction to the third controller; the third switch control module, the first exhaust valve, the second exhaust valve, the first three-way valve, the second three-way valve, the fourth stop valve, the fifth stop valve, the second self-priming pump, the second sewage pump and the first motor are all electrically connected with a third controller; the third controller is used for controlling the running states of the first exhaust valve, the second exhaust valve, the first three-way valve, the second three-way valve, the fourth stop valve, the fifth stop valve, the second self-priming pump, the second sewage pump and the first motor.
Further, the hose retracting mechanism is used for automatically retracting the hose; the pipe retracting and releasing mechanism comprises a support frame, a rotary drum, a left baffle, a right baffle, a pipe limiting mechanism, a first motor and a transmission mechanism; the rotary drum is rotatably connected to the support frame, the left baffle and the right baffle are sleeved on the peripheries of two ends of the rotary drum, and the area between the left baffle and the right baffle on the rotary drum is a winding area of the hose; the rotary drum comprises an inner cavity, one end of the rotary drum is sealed, a pipe joint for connecting a hose is arranged on the outer wall of the rotary drum, and the pipe joint is communicated with the inner cavity of the rotary drum; the rotary drum is rotatably connected with the support frame through a bearing; the non-sealed end of the rotary drum is communicated with the inlet of the second self-priming pump through a flange, and the flange is rotatably and hermetically connected with the end part of the rotary drum; the tube limiting mechanism is used for adjusting the winding or releasing position of the hose on the rotary drum; the pipe limiting mechanism comprises a single-rotation reciprocating screw rod and a limiting pulley block; the limiting pulley block comprises a base, an upper pulley and a lower pulley, and the base is rotatably connected with a nut in the single-rotation reciprocating screw rod; the upper pulley and the lower pulley are arranged on the base, and are symmetrically arranged along the vertical direction and have the same rotating direction with the rotating direction; the hose passes through the pulley groove between the upper pulley and the lower pulley; the first motor drives the screw rod and the rotary drum in the single-rotation reciprocating screw rod to rotate simultaneously through the transmission structure.
Further, a stirring device is also arranged in the sewage storage cabinet and is used for uniformly mixing the sewage mixture stored in the sewage storage cabinet; the stirring device comprises a stirring impeller and a second motor, and the stirring impeller is positioned in the center of the inner cavity of the sewage storage cabinet and close to the bottom wall; the second motor is positioned at the top of the sewage storage cabinet, an output shaft of the second motor extends into the inner cavity along a through hole formed in the top of the sewage storage cabinet, and the output shaft is fixedly connected with the stirring impeller; the output shaft of the second motor is connected with the upper wall of the sewage storage cabinet through a bearing, the second motor is electrically connected with a third controller, and the third controller controls the running state of the second motor.
Furthermore, a first liquid level meter and a second liquid level meter are respectively arranged in the oil storage cabinet and the sewage storage cabinet, the first liquid level meter and the second liquid level meter are electronic liquid level meters, the first liquid level meter and the second liquid level meter are electrically connected with a third controller, and the third controller calculates real-time storage amount in the oil storage cabinet and the sewage storage cabinet according to measurement values of the first liquid level meter and the second liquid level meter.
Furthermore, a pipe placing limit controller is arranged on the surface of the rotary drum in the pipe retracting and releasing mechanism and is electrically connected with a third controller, and the pipe placing limit controller is used for forcibly cutting off the rotation process of the motor when the hose is released to the maximum limit; the tube placing limit controller is a contact type inductive switch, the contact type inductive switch comprises a first contact electrode and a second contact electrode, the first contact electrode is positioned on the surface of the rotary drum, and the second contact electrode is positioned on the surface of the tail end of the hose; the first contact electrode and the second contact electrode are in contact with each other in a state where the hose is stored, and are disconnected after the hose is completely released.
The operation control method of the oil stain transfer vehicle provided by the invention has the following beneficial effects:
the method is mainly an automatic operation control method of the oil stain transfer vehicle, after the oil stain transfer vehicle is provided with a relevant controller and an executive component and operates the control method, the automation degree of the oil stain transfer vehicle is greatly improved, and oil liquid suction and oil liquid removal are carried out; when the four working processes of sewage suction and sewage discharge are carried out, an operator only needs to send out related operation instructions, and the specific execution process of the working content is completed by related execution elements, so that the workload of the operator is greatly reduced.
In addition, in the oil stain transfer vehicle applying the operation control method provided by the invention, the releasing and furling processes of the hose are also realized by the relevant executing mechanism, and the hose is furled without manpower. Meanwhile, the hose can be accurately wound on the rotary drum or released from the rotary drum by the hose winding and unwinding mechanism in the oil contamination transfer vehicle. The practical value is very high, and the hose receive and release effect is better than manual operation.
The oil stain transfer vehicle using the operation control method is simple to operate, has rich functions, is very suitable for popularization and application, can meet the requirements of users, and has wide market prospect.
Drawings
FIG. 1 is a schematic view showing the overall structure of the oil contamination transfer vehicle in this embodiment 1;
FIG. 2 is a side view of the oil contamination transfer vehicle in this embodiment 1;
fig. 3 is a schematic structural diagram of the tube picking and laying mechanism in this embodiment 1;
FIG. 4 is a schematic view of the construction of a single-turn reciprocating screw in example 1;
FIG. 5 is a schematic structural view of a limiting pulley block in example 1;
FIG. 6 is a block diagram showing a control portion of the oil contamination transfer vehicle in the embodiment 1;
FIG. 7 is a flow chart showing the operation of the sewage suction process of the oil contamination transfer vehicle in this embodiment 2;
FIG. 8 is a flow chart showing the operation of the sewage discharge process of the oil contamination transfer vehicle in this embodiment 2;
FIG. 9 is a schematic structural view of the ship sewage storage apparatus in the right side view in this example 3;
FIG. 10 is a schematic structural view of the ship sewage storage apparatus in the present example 3 from the left side;
FIG. 11 is a schematic structural view of the ship sewage storage apparatus in the embodiment 3 from a front view;
fig. 12 is a block connection diagram of a control part in the ship sewage storage apparatus of this embodiment 3;
FIG. 13 is a flowchart illustrating the operation of the marine sewage storage apparatus of this embodiment 4;
fig. 14 is a general layout diagram of the oil collecting and transferring system of the ship in the vehicle-mounted movement of the embodiment 5;
labeled as:
1. a mounting frame; 2. a first case; 3. a second case; 4. a water inlet; 5. air holes; 6. a pulverizing circulating pump; 7. a drug injection device; 8. a first internal circulation conduit; 9. a second internal circulation conduit; 10. cutting a sewage pump; 11. a first sewerage pipeline; 12. a first shut-off valve; 13. a second stop valve; 14. a first control box; 15. a first controller; 16. a display module; 17. a first switch control module; 18. an alarm device; 19. a liquid level meter; 20. a first communication module; 21. an access hole; 22. a gas analyzer; 23. a first exhaust pump; 24. a third stop valve; 31. a chassis; 32. a roller; 33. a handspike; 34. a draw bar; 35. an oil storage cabinet; 36. a sewage storage cabinet; 37. a second self-priming pump; 38. a tube retraction mechanism; 39. a discharge pump mechanism; 40. a third control box; 41. a second dredge pump; 42. a first exhaust valve; 43. a second exhaust valve; 44. a hose; 45. a flange; 46. a rotating drum; 47. a left baffle; 48. a right baffle; 49. a pipe joint; 50. a rotating shaft; 51. a first sprocket; 52. a second sprocket; 53. a third sprocket; 54. a fourth sprocket; 55. a first chain; 56. a second chain; 57. a first motor; 58. a screw; 59. a slide bar; 60. a support frame; 61. a base; 62. a nut; 63. a through hole; 64. an upper pulley; 65. a lower pulley; 66. a third controller; 67. a third switch control module; 68. a first three-way valve; 69. a second three-way valve; 70. a fourth stop valve; 71. a fifth stop valve; 72. a tube placement limit controller; 73. a second motor; 74. a first liquid level meter; 75. a second level gauge; 76. a second flow meter; 77. a third communication module; 78. a quick coupling; 100. a ship oil stain storage device; 200. an oil stain transfer vehicle; 300. a sewage treatment tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment provides an oil contamination transfer vehicle, as shown in fig. 1 and 2, comprising: a chassis 31, an oil reservoir tank 35, a sewage reservoir tank 36, a suction pump mechanism, a pipe retraction mechanism 38, a discharge pump mechanism 39, a fourth shutoff valve 70, a fifth shutoff valve 71, and a third control tank 40.
Wherein, the lower part of the chassis 31 is provided with a roller 32; a push rod 33 and a traction rod 34 are mounted to the front end of the chassis 31. A first exhaust valve 42 is arranged at the top of the oil storage tank 35; the sewage storage tank 36 and the oil storage tank 35 are arranged on the chassis 31 side by side, and a second exhaust valve 43 is arranged at the top of the sewage storage tank 36. The roller 32 at the bottom of the chassis 31 is convenient for moving the chassis 31 and controlling the movement of the oil stain transfer vehicle, the hand push rod 33 is used for manually pushing and pulling the oil stain transfer vehicle, and the draw bar 34 is used for connecting with a power vehicle head and the like, so that the oil stain transfer vehicle when being fully loaded is convenient to transfer. The first and second exhaust valves 42 and 43 may be opened when oil or sewage is sucked or discharged to equalize air pressures in the sewage reservoir 36 and the oil reservoir 35 while closing the valves during transportation to prevent odor from being diffused.
The suction pump mechanism comprises a second self-priming pump 37, a hose 44, a suction pipeline and a first three-way valve 68, and the end part of the hose 44 is provided with a quick joint 78 for connecting with the ship sewage storage device; the suction pipeline comprises a first suction pipeline and a second suction pipeline, an outlet of the second self-sucking pump 37 is communicated with one ends of the first suction pipeline and the second suction pipeline through a first three-way valve 68 respectively, the other end of the first suction pipeline extends into an inner cavity of the oil liquid storage cabinet 35, and the other end of the second suction pipeline extends into an inner cavity of the sewage storage cabinet 36.
A hose retraction mechanism 38 for automatically retracting the hose 44; as shown in fig. 3, the tube retracting mechanism 38 includes a support frame 60, a drum 46, a left baffle 47, a right baffle 48, a tube limiting mechanism, a first motor 57, and a transmission mechanism; the rotary drum 46 is rotatably connected to the support frame 60, the left baffle 47 and the right baffle 48 are sleeved on the peripheries of two ends of the rotary drum 46, the area between the left baffle 47 and the right baffle 48 on the rotary drum 46 is the winding area of the hose 44, the rotary drum 46 contains an inner cavity, one end of the rotary drum 46 is sealed, a pipe joint 49 for connecting the hose 44 is arranged on the outer wall of the rotary drum 46, and the pipe joint 49 is communicated with the inner cavity of the rotary drum 46; the rotary drum 46 is rotatably connected with the support frame 60 through a bearing; the unsealed end of the rotary drum 46 is communicated with the inlet of the second self-priming pump 37 through a flange 45, and the flange 45 is rotatably and hermetically connected with the end part of the rotary drum 46; the tube position limiting mechanism is used for adjusting the winding or releasing position of the hose 44 on the drum 46; the pipe limiting mechanism comprises a single-rotation reciprocating screw rod and a limiting pulley block; as shown in fig. 5, the limiting pulley block comprises a base 61, an upper pulley 64 and a lower pulley 65, wherein the base 61 is rotatably connected with a nut 62 in a single-rotation reciprocating screw rod; the upper pulley 64 and the lower pulley 65 are installed on the base 61, and the upper pulley 64 and the lower pulley 65 are symmetrically arranged along the vertical direction and have the same rotating direction with the rotating direction; the hose 44 passes along the pulley groove between the upper pulley 64 and the lower pulley 65; the first motor 57 simultaneously drives the screw 58 of the single-turn reciprocating screw and the drum 46 to rotate through a transmission structure.
Before the sewage or oil suction process, the hose 44 is released by the pipe retraction/release mechanism 38, and is connected to a sewage storage device on the ship. During the release of the hose 44, the first motor 57 drives the drum 46 to rotate, so that the hose 44 is released from the drum 46, and the hose 44 is translated by the hose limiting mechanism, so that the hose 44 can be released uniformly on the drum 46 without winding. Meanwhile, the upper pulley 64 and the lower pulley 65 also have the function of clamping a pipeline, so that the hose 44 can be conveniently released through the rotation of the upper pulley 64 and the lower pulley 65. Accordingly, when the hose 44 is stored, the drum 46 and the tube stopper mechanism can uniformly wind the hose 44 by the reverse rotation of the motor.
A drain pump mechanism 39 including a second drain pump 41, a drain line including a first drain line and a second drain line, and a second three-way valve 69; one end of the first discharge pipeline extends to the bottom of the inner cavity of the oil storage cabinet 35; one end of the second sewage draining pipeline extends to the bottom of the sewage storage cabinet 36, and the other ends of the first sewage draining pipeline and the second sewage draining pipeline are communicated with the inlet of the second sewage draining pump 41 through a second three-way valve 69; the outlet of the second dredge pump 41 is connected with a quick coupling 78.
The fourth stop valve 70 is positioned at the inlet of the second self-priming pump 37 and is used for controlling the on-off of the oil stain suction process; and a fifth cut-off valve 71 at the outlet of the second dredge pump 41 for controlling the on-off of the oil discharge process.
The third control box 40 includes a third controller 66 and a third switch control module 67; the third switch control module 67 is used for sending a manual control instruction to the third controller 66; as shown in fig. 6, the third switch control module 67, the first exhaust valve 42, the second exhaust valve 43, the first three-way valve 68, the second three-way valve 69, the fourth stop valve 70, the fifth stop valve 71, the second self-priming pump 37, the second dredge pump 41 and the first motor 57 are all electrically connected to the third controller 66; the third controller 66 is used for controlling the operation states of the first exhaust valve 42, the second exhaust valve 43, the first three-way valve 68, the second three-way valve 69, the fourth stop valve 70, the fifth stop valve 71, the second self-priming pump 37, the second dredge pump 41 and the first motor 57. In this example, the third controller 66 automatically controls the running process of the oil contamination transfer vehicle, and an operator only needs to issue instructions such as | pipeline retraction "," suction "," pollution discharge "and the like to the third controller 66 through the switch control module; the operation process is very simple.
In this embodiment, a stirring device is further disposed in the sewage storage cabinet 36, and the stirring device is used for uniformly mixing the sewage mixture stored in the sewage storage cabinet 36; the stirring device comprises a stirring impeller and a second motor 73, wherein the stirring impeller is positioned in the center of the inner cavity of the sewage storage cabinet 36 and close to the bottom wall; the second motor 73 is positioned at the top of the sewage storage cabinet 36, an output shaft of the second motor 73 extends into the inner cavity along a through hole 63 formed at the top of the sewage storage cabinet 36, and the output shaft is fixedly connected with the stirring impeller; the output shaft of the second motor 73 is connected with the upper wall of the sewage storage tank 36 through a bearing, the second motor 73 is electrically connected with the third controller 66, and the third controller 66 controls the running state of the second motor 73.
The main thing of keeping in the sewage storage cabinet 36 is domestic sewage, and these sewage often are smashed the mixing by preliminary on boats and ships, nevertheless still can appear deposit, adhesion, the phenomenon of harden in the transportation, and these bigger solid matters of size can lead to sewer pipe etc. to take place the jam. Therefore, in this embodiment, a stirring device is provided in the sewage storage tank 36 to periodically stir and mix the sewage mixture therein.
In this example, the oil storage tank 35 and the sewage storage tank 36 are respectively provided with a first level gauge 74 and a second level gauge 75, the first level gauge 74 and the second level gauge 75 are electronic level gauges, the first level gauge 74 and the second level gauge 75 are both electrically connected to the third controller 66, and the third controller 66 calculates the real-time storage volume V in the oil storage tank 35 and the sewage storage tank 36 according to the measurement values of the first level gauge 74 and the second level gauge 75Oil、VWater (W)And a maximum volume Vmax according to the oil tank 35 and the sewage tank 36Oil、VmaxWater (W)Determination of an acceptable reserve VreOil、VreWater (W). The liquid level meter can monitor the storage capacity in the cabinet body in real time, and the storage capacity can be used for calculating the subsequent receiving amount of sewage or oil liquid and analyzing whether the transfer can be completed at one time when the sewage in the ship is excessive; meanwhile, the liquid level meter can also be used for calculating the total storage capacity in the oil storage cabinet 35 and the sewage storage cabinet 36, and the data is the basis for settlement of cost when sewage is discharged to a sewage treatment station in the later period.
In this example, a second flow meter 76 is provided at the inlet of the fourth shut-off valve 70 and the self-priming pump; the second flowmeter 76 is used for measuring the suction volume Vi of the oil or sewage pumped by the self-sucking pumpOilOr ViWater (W). The flow meter can count the flow of the sewage or oil received by the oil contamination transfer vehicle from the ship, and the data is used as the settlement basis for the sewage recovery treatment of the transfer vehicle and the ship.
As shown in fig. 4, the surface of the screw 58 in the single-turn reciprocating screw is provided with thread grooves along the positive and negative directions, and the ends of the thread grooves in the two directions are smoothly and smoothly connected at the two ends of the screw 58; the nut 62 is provided with inwardly projecting groove teeth, and the groove teeth on the nut 62 are in matched clamping connection with the thread groove on the screw 58.
The working principle of the single-rotation reciprocating screw rod is as follows: when the screw 58 rotates, the groove teeth in the nut 62 are clamped in the thread groove, so that the nut 62 can perform self-rotating motion along with the translation of the screw 58, and when the nut 62 reaches one end of the screw 58, the nut can automatically switch to the thread groove in the other direction to perform reciprocating self-rotating motion. The retainer pulley is rotatably coupled to the nut 62 so that the retainer pulley reciprocates along the screw 58.
The pipe limiting mechanism further comprises at least one smooth sliding rod 59, the sliding rod 59 is arranged in parallel with the screw 58, a through hole 63 corresponding to the position is formed in a base 61 of the limiting pulley block, and the sliding rod 59 is inserted into the through hole 63. The sliding rod 59 is used for controlling the self-rotating motion of the limiting pulley block, so that the limiting pulley block only moves horizontally without self-rotating, the reliability and the service life of the nut 62 and the screw 58 are greatly improved, and deformation and damage caused by relative displacement between the groove teeth and the thread groove are prevented.
The transmission mechanism comprises a rotating shaft 50, a first chain wheel 51, a second chain wheel 52, a third chain wheel 53, a fourth chain wheel 54, a first chain 55 and a second chain 56; the shaft is concentrically connected to the sealed end of the bowl 46; the first chain wheel 51 and the second chain wheel 52 are sleeved on an output shaft of the first motor 57 in parallel, the third chain wheel 53 is sleeved on the rotating shaft 50, the fourth chain wheel 54 is sleeved on a screw 58 of the single-rotation reciprocating screw rod, the first chain 55 is sleeved on the first chain wheel 51 and the third chain wheel 53, and the second chain 56 is sleeved on the second chain wheel 52 and the fourth chain wheel 54.
The rotating speed ratio of the rotary drum 46 and the screw 58 in the single-rotation reciprocating screw is matched through the size and the gear ratio of the first chain wheel 51, the second chain wheel 52, the third chain wheel 53 and the fourth chain wheel 54, and a speed reducer is further arranged between the rotary drum 46 and the rotating shaft 50.
The transmission mechanism enables the first single machine to simultaneously drive the drum 46 and the screw 58 to rotate, and simultaneously, the rotating speeds of the drum 46 and the screw 58 are not constant because the outer diameters of the combination of the drum 46 and the hose 44 are continuously changed during the process of receiving and dispatching the hose 44 by the drum 46, so that the rotating speeds of the drum 58 and the screw 46 are adjusted and adapted through the gear ratio and the speed reduction of the chain wheels.
In this example, the third controller 66 is further connected to a third communication module 77, and the third communication module 77 is used for communicating with an external device or system, acquiring a volume of sewage or oil to be transferred on the ship, and receiving an operation instruction sent by the external device or a cloud system. The third communication module 77 enables the third controller 66 to establish a link with the ship to obtain required data, and meanwhile, can establish a communication connection with a cloud system to facilitate remote control and data transmission of the device. Such as making payments for fees online, etc.
In this example, the portions of the first and second suction pipes extending to the inside of the oil tank 35 and the sewage tank 36 are located at the upper portion of the cavity; the first sewage discharging pipeline and the second sewage discharging pipeline extend to the bottom of the cavity body of the oil liquid storage cabinet 35 and the part inside the sewage storage cabinet 36, a downward concave part is arranged at the position, corresponding to the first sewage discharging pipeline, on the bottom wall of the oil liquid storage cabinet 35, and a downward concave part is also arranged at the position, corresponding to the second sewage discharging pipeline, on the bottom wall of the sewage storage cabinet 36. The depressed part makes the blowdown in-process, and the solid matter of the deposit of storage cabinet bottom also can be by abundant suction, prevents that solid matter adhesion scheduling problem from leading to cabinet body or pipeline jam.
The surface of the rotary drum 46 in the pipe retracting mechanism 38 is further provided with a pipe releasing limit controller 72, the pipe releasing limit controller 72 is electrically connected with the third controller 66, and the pipe releasing limit controller 72 is used for forcibly cutting off the rotation process of the motor when the hose 44 is released to the maximum limit; the payout limit controller 72 is a contact-sensitive switch that includes a first contact electrode located on the surface of the drum 46 and a second contact electrode located on the surface of the tail end of the hose 44; the first contact electrode and the second contact electrode are in contact with each other in a state where the tube 44 is stored, and are disconnected after the tube 44 is completely released. During the release process, if the maximum is reached, the drum 46 continues to rotate at this time, which may cause a reverse retraction of the hose 44, which may cause the hose 44 to break or cause injury to the operator's personal safety. In this embodiment, a controller 72 for limiting the pipe discharging is provided, when the hose 44 is close to the maximum length, the contact-type inductive switch is automatically turned off, and the third controller 66 receives a signal to control the motor to stop running in time, so as to avoid dangerous accidents.
The third controller 66 also has a self-locking function between the second self-priming pump 37 and the first motor 57 through program control, and controls at most one device to operate, so that sewage leakage, idle running of the pump body and other safety accidents caused by simultaneous operation of the two devices are avoided, and the safety of the device is improved.
Example 2
An operation control method of an oil stain transfer vehicle is applied to the oil stain transfer vehicle in the embodiment 1, and comprises a suction working process and a pollution discharge working process; the pumping working process and the pollution discharge working process respectively comprise oil pumping and oil discharging; sewage suction and sewage discharge.
As shown in fig. 7, the control method of the sewage suction process is as follows:
s1: in the initial state, the oil storage cabinet 35 and the sewage storage cabinet 36 of the oil stain transfer trolley are vacant; the first exhaust valve 42, the second exhaust valve 43, the fourth stop valve 70, the fifth stop valve 71, the second self-priming pump 37, the second dredge pump 41, the first motor 57 and the second motor 73 are all in a closed state;
s2: an onshore operator sends a command of pumping sewage to the third controller 66 through the third switch control module 67, and the third controller 66 controls the first three-way valve 68 to be switched to a state of conducting the second pumping pipeline according to the relevant command;
s3: after the first three-way valve 68 is switched, the onshore operator sends a pipe placing instruction to the third controller 66 through the third switch control module 67; the third controller 66 drives the first motor 57 to rotate reversely, and the hose 44 is released;
s4: during the release of the hose 44, an operator pulls the hose 44 and delivers it to a ship worker who interfaces the quick connector 78 of the hose 44 with a sewage discharge port on the ship;
s5: after the hose 44 is released to reach the required length, an operator on the shore issues a pipe releasing stopping instruction to the third controller 66 through the third switch control module 67, and when the third controller 66 receives the pipe releasing stopping instruction of the operator or the hose 44 is released to reach the maximum limit, the third controller 66 controls the first motor 57 to stop rotating, and pipe releasing is finished;
s6: after the pipe discharging process is finished, an operator on the shore starts the second self-sucking pump 37 to suck the sewage on the ship into the sewage storage cabinet 36; the sewage suction process comprises the following steps:
s61: the third communication module 77 establishes communication connection with the sewage storage device on the ship to obtain the total storage volume V of the sewage on the shipShip with a detachable hullThe third controller 66 is based on the volume V of the wastewater storage tank 36CabinetAnd VShip with a detachable hullThe relationship of (a) determines the strategy of the current round of pumping:
(1) when V isShip with a detachable hull≤VCabinetThe maximum suction volume Vmax of the wheel of the second self-priming pump 37 is equal to VShip with a detachable hullCompletely pumping out the sewage on the ship at one time;
(2) when V isShip with a detachable hull＞VCabinetThe maximum suction volume of the second self-priming pump 37 is Vmax ═ VCabinetStep-by-step pumping of the sewage on the ship;
s62: after the strategy is determined, the third controller 66 respectively controls the second exhaust valve 43 to be opened, the fourth stop valve 70 to be opened, and the second self-priming pump 37 to operate to suck the sewage;
s63: in the sewage suction process, the second flow meter 76 counts the flow of the fluid flowing through the self-priming pump, and sends the flow counting result to the third controller 66, and the third controller 66 determines the operation state of the second self-priming pump 37 according to the relation between the maximum suction volume Vmax and the real-time flow Vi in the suction strategy of the round; the operation control strategy of the second self-priming pump 37 is as follows:
(1) when Vmax-Vi is greater than Δ V, the second self-priming pump 37 continues to operate;
(2) when Vmax-Vi is less than or equal to delta V, the second self-priming pump 37 stops running;
wherein, the delta V is the maximum loss value of water receiving and water obtaining in the pumping process under the condition of considering the viscosity loss of pipelines and equipment, the water receiving refers to the volume of fluid extracted from a ship, and the water obtaining refers to the volume of fluid stored in the storage cabinet;
s64: after the second self-priming pump 37 stops operating, the third controller 66 controls the fourth stop valve 70 to close, and the second exhaust valve 43 to close; completing the aspiration process;
s7: after the sewage pumping process is finished, the operator on the ship disconnects the quick connector 78; the shore operator gives an instruction to the third controller 66 module through the third switch control module 67, the third controller 66 drives the first motor 57 to rotate reversely, the hose 44 is wound, and after the winding of the hose 44 is completed, the shore operator turns off the first motor 57 through the third switch control module 67.
The oil suction process is similar to the sewage suction process, and the difference between the oil suction process and the sewage suction process is that: during oil suction, the first three-way valve 68 maintains the first suction line in a conductive state.
As shown in fig. 8, the operation steps of the sewage discharge process are as follows:
s1: an operator moves the transfer trolley to a position near a sewage treatment station, and connects a quick connector 78 at the outlet of the sewage pump with a sewage pipeline communicated with a sewage pool; in the initial state, the second sewage pump 41, the second exhaust valve 43, the fifth stop valve 71 and the second motor 73 are all in a closed state;
s2: an operator sends a sewage discharge instruction to the third controller 66 through the third switch control module 67, and the third controller 66 controls the second motor 73 to operate for a specified period to stir and mix the sewage in the sewage storage cabinet 36;
s3: after the blending is finished, the third controller 66 switches the second three-way valve 69 to control the second exhaust valve 43 and the fifth stop valve 71 to be opened and control the second sewage pump 41 to operate; discharging the sewage from the sewage storage tank 36 into a sewage tank;
s4: in the sewage discharge process, the liquid level meter monitors the real-time liquid level h in the sewage storage cabinet 36, and the first controller receives the detection result of the liquid level meter and makes the following judgment according to the result:
(1) when the real-time liquid level h is larger than or equal to h0, the second sewage pump 41 continues to operate;
(2) when the real-time liquid level h is less than h0, the second sewage pump 41 stops running;
wherein h0 is an empirical value, h0 is the historical minimum level of fluid in the wastewater storage tank 36 after the second dredge pump 41 has dredged; h0 may be zero;
s5: when the second dredge pump 41 stops operating, the third controller 66 controls the second exhaust valve 43 and the fifth stop valve 71 to close, and the dredge process is completed.
The oil liquid discharge process is similar to the sewage discharge process, and the difference between the oil liquid discharge process and the sewage discharge process is as follows: in the oil discharging process, the second three-way valve 69 keeps the first discharging pipeline in a conducting state, and meanwhile, the oil storage cabinet 35 does not need to be stirred and mixed uniformly.
Example 3
The present embodiment provides a ship sewage storage apparatus, as shown in fig. 9 to 11, the apparatus includes a mounting frame 1, a first tank 2, a second tank 3, a level gauge 19, a pulverizing circulation pump 6, an internal circulation pipe, a cutting sewage pump 10, a sewage pipe, a first stop valve 12, a second stop valve 13, and a third stop valve 24.
In this example, the top of the first tank 2 is provided with a water inlet 4 and an air hole 5. The water inlet 4 is used for communicating a sewage pipe network on the ship with the inner cavity of the first box body 2. The gas hole 5 is used for balancing the air pressure in the first box body 2 and the second box body 3, when the first box body 2 and the second box body 3 receive sewage, the gas in the inner cavity is discharged along the gas hole 5, when the first box body 2 and the second box body 3 discharge sewage, the external gas enters along the gas hole 5, and the air pressure in the inner cavity of the first box body 2 and the second box body 3 is balanced.
The second box body 3 and the first box body 2 are symmetrically arranged on the mounting frame 1 in parallel, upper through holes and lower through holes are arranged at corresponding positions on the side wall of the first box body 2, which is in contact with the second box body 3, and the lower through holes in the side walls of the first box body 2 and the second box body 3 are respectively positioned at the positions, connected with the bottom surface, in the side walls; the upper through holes and the lower through holes in the first box body 2 and the second box body 3 are communicated with each other. A display portion of the level gauge 19 is provided outside the first tank 2, and a detection portion of the level gauge 19 is provided inside the first tank 2 for measuring the fluid level in a communication chamber formed by the first tank 2 and the second tank 3.
The crushing circulating pump 6 is used for crushing and uniformly mixing the sewage mixture received in the inner cavities of the first box body 2 and the second box body 3; the crushing circulating pump 6 is arranged outside the first box body 2 and the second box body 3; the crushing circulating pump 6 is also connected with a medicine injection device 7, and the medicine injection device 7 is used for injecting medicines for treating sewage into the inner cavities of the first box body 2 and the second box body 3 through the crushing circulating pump 6.
The internal circulation pipes comprise a first internal circulation pipe 8 and a second internal circulation pipe 9; one end of the first internal circulation pipeline 8 is communicated with the inlet of the crushing circulation pump 6; the other end extends to the lower part of the inner cavity of the first box body 2; the portion of the first internal circulation duct 8 located inside the first tank 2 is disposed in the vertical direction with the opening of the end of the first internal circulation duct 8 facing downward. One end of a second internal circulation pipeline 9 is communicated with an outlet of the circulating crushing pump, the other end of the second internal circulation pipeline extends into an inner cavity of the second box body 3, and the part, located in the second box body 3, of the second internal circulation pipeline 9 is horizontally arranged and attached to the inner wall of the bottom of the second box body 3; the flow direction of the fluid at the end of the second internal circulation pipe 9 is directed into the first tank 2 along the lower through hole of the second tank 3.
The first tank 2 and the second tank 3 are in communication with each other, and after the pollutants fall into the first tank 2 along the water inlet 4, the solid matters are mainly deposited inside the first tank 2, and the liquid sewage is uniformly distributed between the first tank 2 and the second tank 3. When the whole reserve volume of sewage mixture rises to a certain height (in this example, does not pass through the last through-hole in first box 2 and the second box 3), accessible crushing circulating pump 6 is regularly smashed the mixing to the pollutant in first box 2 and the second box 3.
The crushing circulating pump 6 is a circulating pump with a built-in crushing cavity and a crushing cutter, and fluid materials can be sufficiently cut and crushed after passing through the crushing circulating pump 6. A crushing circulating pump 6 and an internal circulating pipeline are arranged; so that the sewage and solid pollutants (such as feces and food residues and the like) in the first box body 2 and the second box body 3 can be crushed and uniformly mixed between the two box bodies, and the circulating crushing process is as follows:
when the crushing circulating pump 6 operates, solid matters are sucked from the bottom of the first box body 2 through the first inner circulating pipeline 8, and then are discharged through the second inner circulating pipeline 9 after being crushed by the crushing circulating pump 6. When discharging, the smashed pollutants are washed into the first box body 2 along the lower through hole at the bottom of the second box body 3. During the flushing process, part of the solid matters deposited at the bottom of the second box body 3 are flushed into the first box body 2 and sucked and crushed again. In the process of circularly crushing the solid matters at the lower parts of the first box body 2 and the second box body 3, the liquid matters at the upper parts of the first box body 2 and the second box body 3 circularly flow along the upper through holes. By maintaining such a process for a while, the contaminants in the first casing 2 and the second casing 3 are completely crushed and mixed.
The cutting sewage pump 10 is used for discharging the contained sewage mixture in the first box body 2 and the second box body 3; the cutting sewage pump 10 is positioned outside the first box body 2 and the second box body 3; the cutting dredge pump 10 is a lift pump with a cutting tool for lifting the contaminants in the first tank 2 and the second tank 3 to the level of the deck so as to facilitate discharge of the contaminants.
The sewage discharge pipeline comprises a first sewage discharge pipeline 11 and a second sewage discharge pipeline, one end of the first sewage discharge pipeline 11 is communicated with an inlet of the cutting sewage discharge pump 10, and the other end of the first sewage discharge pipeline extends into the first box body 2; the part of the first waste trap pipe located in the first tank 2 is close to but not in contact with the inner wall of the bottom of the first tank 2. And a second sewage discharge pipeline is communicated with an outlet of the cutting sewage discharge pump 10, extends to the deck of the ship body, and is connected with a quick connector at the port.
The first stop valve 12 is arranged between the inlet of the cutting sewage pump 10 and the sewage bent pipe and is used for controlling the on-off of the sewage discharging process in the sewage storage device; the second stop valve 13 is arranged between the water inlet 4 at the top of the first box body 2 and the sewage pipe network and used for controlling the on-off of the sewage collection process in the sewage storage device. And a third stop valve 24 is arranged between the sewage discharge pipeline and the quick joint, and the third stop valve 24 is used for controlling the on-off of the fluid discharging process at the quick joint.
In this example, the parts of the first internal circulation pipeline 8 and the first sewage pipeline 11 located in the first box 2 are both vertically arranged downwards, the end parts of the first internal circulation pipeline and the first sewage pipeline are in butt joint with the inside of the bottom of the first box 2 but are not in contact with each other, meanwhile, the position on the bottom wall of the first box 2 is also provided with a downward concave part, the concave part is used for enabling the suction effect of the crushing circulation pump 6 and the cutting sewage pump 10 to be more sufficient, and the bottom of the first box 2 is relatively viscous and pollutants with higher density can be completely sucked at the position.
In this example, the first control box 14 includes a first controller 15 and a harmful gas treatment device; the harmful gas treatment device is electrically connected with the first controller 15; the harmful gas treatment device is used for detecting the concentration of various gases in the inner cavity in real time in the whole using process of the sewage storage device, the first controller 15 calculates the comprehensive concentration parameter PPM of the harmful gas according to the concentration of various gases, and when the comprehensive concentration parameter PPM of the harmful gas reaches a danger threshold value, the harmful gas treatment device discharges the harmful gas in the inner cavity out of the first box body 2 and the second box body 3.
In the present embodiment, the harmful gas treatment apparatus includes a gas analyzer 22, an exhaust pipe, and a first exhaust pump 23; the gas analyzer 22 is used for detecting the concentration of four gases, namely oxygen, hydrogen sulfide, carbon monoxide and combustible gas, in the inner cavities of the first box body 2 and the second box body 3; one end of the exhaust pipeline is communicated with the space at the top of the inner cavities of the first box body 2 and the second box body 3, and the other end of the exhaust pipeline extends out of the cabin; the first exhaust pump 23 is positioned at an inlet of the exhaust duct, and is used for exhausting harmful gas in the first tank 2 and the second tank 3; the gas analyzer 22 and the first exhaust pump 23 are both electrically connected to the first controller 15; the first controller 15 is configured to obtain a detection result of the gas analyzer 22, and control an operation state of the first exhaust pump 23 according to the obtained comprehensive concentration parameter of the harmful gas, where a control strategy of the first controller 15 on the operation state of the first exhaust pump 23 is as follows:
(1) when the real-time harmful gas comprehensive concentration parameter PPM in the first box body 2 and the second box body 3 is less than or equal to PPM0, the first exhaust pump 23 does not work;
(2) when the real-time harmful gas comprehensive concentration parameter PPM in the first box body 2 and the second box body 3 is more than PPM0, the first exhaust pump 23 operates for a specified time period T0;
the PPM is a comprehensive parameter obtained by calculation according to the difference value between the real-time concentration of four gases including oxygen, hydrogen sulfide, carbon monoxide and combustible gas and the dangerous concentration threshold value; the parameters consider the influence factors of each gas on the explosion risk of the mixed gas; and the risk threshold ppm0 for this composite parameter is determined empirically by the expert.
In this example, the calculation formula of PPM of the comprehensive concentration parameter of the harmful gas is as follows:
Figure BDA0002839707240000151
in the above formula, A is the real-time concentration of oxygen, A0Is a dangerous concentration threshold value of oxygen, and a is an influence factor of the oxygen on the explosion danger of the mixed gas; b is the real-time concentration of hydrogen sulfide, B0B is a dangerous concentration threshold value of the hydrogen sulfide, and b is an influence factor of the hydrogen sulfide on the explosion danger of the mixed gas; c is the real-time concentration of carbon monoxide, C0C is a dangerous concentration threshold value of the carbon monoxide, and c is an influence factor of the carbon monoxide on the explosion danger of the mixed gas; d is the real-time concentration of the combustible gas, D0The mixture of combustible gas and air can be exploded to the lowest concentration when meeting fire source, and d is the influence factor of combustible gas on the explosion risk of the mixed gas.
In this example, the top of the first box 2 and the second box 3 are respectively provided with an access hole 21, the access hole 21 is provided with a top cover which can be opened and closed, the air hole 5 is connected with one end of the conduit, and the other end of the conduit extends out of the cabin. The access hole 21 is mainly used for overhauling the components in the first box body 2 and the second box body 3; meanwhile, the first box body 2 and the second box body 3 can be flushed through the opening regularly, pollutants adhered to the inner wall are removed, and the upper through hole, the lower through hole, the sewage discharge pipeline and the internal circulation pipeline are kept to be communicated.
As shown in fig. 12, the first stop valve 12, the second stop valve 13, and the third electromagnetic valve are electric stop valves; the level gauge 19 is an electronic level gauge 19. The control box also comprises a display module 16, a first switch controller module 17 and an alarm device 18; the display module 16, the first switch controller module 17 and the alarm module are all electrically connected with the first controller 15; the display module 16 is used for displaying the man-machine interaction content in the operation and control process of the sewage storage device; the switch control is used for the operator to send an operation instruction to the first controller 15; the alarm device 18 comprises a buzzer and a strobe light, and the alarm device 18 is used for sending out early warning alarms to operators in different states of the sewage collection process; the first controller 15 is also electrically connected with a liquid level meter 19, a first stop valve 12, a second stop valve 13, a third electromagnetic valve, a crushing circulating pump 6, a medicine injection device 7 and a cutting sewage pump 10; the liquid level meter 19 is used for detecting the liquid level height of the fluid in the communication cavity of the first box body 2 and the second box body 3; the first controller 15 is respectively used for calculating the storage amount of the sewage mixture in the communicating cavities of the first tank body 2 and the second tank body 3 according to the liquid level height obtained by the liquid level meter 19 and controlling the opening and closing states of the first stop valve 12, the second stop valve 13 and the third stop valve 24; for controlling the operating states and parameters of the pulverizing and pulverizing circulating pump 6 and the cutting circulating pump; for controlling the medicine injection means 7 to periodically inject the sewage treatment medicine into the first tank 2 and the second tank 3.
In this example, the first controller 15 is further connected to a first communication module 20, and the first communication module 20 is used for sending the real-time storage amount of the sewage mixture in the sewage storage device to other equipment or systems and receiving an external sewage discharge operation instruction.
Example 4
In this example, there is provided an automatic control method of a ship sewage storage apparatus, which is applied to the ship sewage storage apparatus described in example 3; as shown in fig. 13, the automatic control method includes the steps of:
s1: in an initial state, the first box body 2 and the second box body 3 are in an idle state, the first controller 15 in the control box controls the first stop valve 12 to be in an open state, the second stop valve 13 and the third stop valve 24 to be in a closed state, and the crushing circulating pump 6 and the cutting sewage pump 10 are in a stop state;
s2: the first controller 15 controls the second stop valve 13 to be opened, the sewage storage device starts to collect sewage flowing into a sewage pipe network in the ship, and the gas analyzer 22 monitors the concentration of gas generated by fermentation in the inner cavities of the first box body 2 and the second box body 3 in real time and sends data to the first controller 15; when the gas concentration reaches the alarm value ppm0, the first controller 15 controls the first exhaust pump 23 to open, and harmful gas is exhausted out of the first tank 2 and the second tank 3;
s3: in the using process of the sewage storage device, the electronic liquid level meter 19 monitors the liquid level height h of a sewage mixture in the ship sewage storage device in real time and sends a detection result to the first controller 15, and the first controller 15 calculates the real-time storage volume V of the ship sewage storage device through a volume operation function; the volume operation function V(h)The formula of (1) is as follows:
Figure BDA0002839707240000171
in the above formula, N is the total number of the first casing 2 and the second casing 3, N is 2 for the 1 st second casing 3, N is 3 … … for the 2 nd second casing 3, and N is N +1 for the nth second casing 3; sn(h) H is the real-time liquid level height of the content in the ship sewage storage device detected by a liquid level meter 19, and is a function of the horizontal sectional area and the height of the (n-1) th second box body 3;
s4: when the real-time reserves V in the first box body 2 and the second box body 3 reach the bottom limit capacity V0, the first controller 15 controls the crushing circulating pump 6 to operate for a period of time t0, a crushing and uniformly mixing process is completed, and the contents in the inner cavity of the ship sewage storage device are crushed and uniformly mixed; when the reserve volume V rises by one volume delta V, completing the process of crushing and mixing for one time;
s5: in a plurality of crushing and mixing processes, the first controller 15 controls the medicine injection device 7 to inject sewage treatment medicines into the first box body 2 and the second box body 3 according to a preset frequency, and the medicines are uniformly distributed in sewage along with the crushing and mixing processes of the contents;
s6: when the real-time reserves in the first box body 2 and the second box body 3 reach the warning capacity v1, the first controller 15 sends an instruction to the second stop valve 13, and meanwhile, the alarm device 18 reminds workers on the ship that the sewage storage device is nearly full and needs to be in time landed for sewage disposal in a ringing and/or stroboscopic mode;
s7: when the real-time storage amount in the first tank 2 and the second tank 3 reaches the upper limit v2 of the capacity, the first controller 15 sends a control instruction to the second stop valve 13, and the second stop valve 13 is closed; waiting for the ship to land for pollution discharge; at the same time, the alarm device 18 is operated to alert the operator that the sewage storage device has failed to continue to receive sewage;
s8: after boats and ships leaned on the shore, the staff with the quick-operation joint of second sewage pipes tip and the quick-operation joint butt joint of the filth collection device on the bank to give the blowdown instruction of beginning through first on-off controller module 17 to first controller 15, boats and ships sewage storage device is receiving the following process of the automatic execution according to the chronogenesis after beginning the blowdown instruction:
s81: the first controller 15 controls the crushing and circulating pump 6 to issue a control instruction, and controls the crushing and circulating pump 6 to finish the last crushing and mixing process before the sewage is discharged;
s82: after the crushing and uniformly mixing process is finished, the first controller 15 sends control instructions to the first stop valve 12 and the third stop valve 24 to drive the first stop valve and the third stop valve 24 to be opened;
s83: after the first stop valve 12 and the second stop valve 13 are opened, the first controller 15 sends a control instruction to the cutting sewage pump 10, the cutting sewage pump 10 operates to lift the sewage mixture in the first box body 2 and the second box body 3 to a deck, and the sewage mixture is extracted by a sewage collecting device on the shore;
s84: during the operation of the cutting dredge pump 10, the first controller 15 receives the data measured by the liquid level meter 19 in real time, and judges whether the sewage mixture in the first box body 2 and the second box body 3 is emptied:
(1) when the sewage is not completely discharged, the cutting sewage pump 10 continues to operate;
(2) when the sewage is drained, the first controller 15 sends a control instruction to the cutting sewage pump 10, and the cutting sewage pump 10 stops running; finishing the sewage discharge process;
s9: after the sewage disposal process is finished, the first controller 15 gives an instruction to the alarm device 18, and the alarm device 18 works to remind an operator to disconnect the quick connector 63; at the same time, the first controller 15 restores the sewage storage device to the initial state as in S1, and continues to receive the sewage discharged into the ship sewage network.
In the present embodiment, the alarm state in steps S6, S7, S9 is automatically cleared after a duration of time or manually cleared by the first switch controller module 17; the control flow for operation of the alarm device 18 to elimination is as follows:
after the alarm device 18 is operated, the first controller 15 counts the specified alarm duration of the alarm state, and determines whether a manual shutdown command is received, and makes a determination by combining the two:
(1) when the specified alarm time length is not reached and the manual closing instruction is not received, the alarm device 18 continues to work;
(2) when the duration of the alarm state has been reached or a manual shut down command has been received, the first controller 15 issues a command to the alarm device 18 and the alarm device 18 is shut down.
In the present embodiment, the three alarms in steps S6, S7, and S9 differ in the prescribed duration of the alarm state and the combined state of ringing and stroboscopic in the alarm signal.
Example 5
In this example, there is provided a vehicle-mounted mobile marine oil contamination collecting and transferring system, as shown in fig. 14, comprising: the ship oil stain storage device 100, the oil stain transfer trolley 200 and the sewage treatment pool 300. The ship oil contamination storage apparatus 100 in this embodiment is different from the ship sewage storage apparatus described in embodiment 3 in that: the ship oil stain storage device 100 is additionally provided with an oil tank which is communicated with an oil recovery tank on the deck through a pipeline, and the inlet of the cutting sewage pump 10 is respectively communicated with the first box body 2 and the oil tank through a third three-way valve. The cutting dredge pump 10 is used to pump sewage in the first tank or oil in the oil tank, respectively, onto the deck.
The oil stain transfer vehicle in the embodiment is the oil stain transfer vehicle in the embodiment 1; the sewage treatment tank 300 is used for performing innocent treatment on domestic sewage collected from a ship. And after the collected oil is subjected to oil stain separation, oil components are recycled, and sewage components are discharged into a sewage treatment tank for harmless treatment.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The operation control method of the oil contamination transfer vehicle is characterized in that the operation control method respectively controls oil suction and oil removal; four working processes of sewage suction and sewage discharge;
the control method of the sewage suction process comprises the following steps:
s1: initializing the oil stain transfer vehicle, and closing each pump body and each valve body;
s2: switching a related pipeline for sewage suction into a conducting state;
s3: releasing the hose;
s4: towing the hose onto the vessel;
s5: the hose is released to reach the required length, the hose is put, and the hose is butted with a sewage discharge pipeline on the ship;
s6: starting a pump mechanism, and pumping the sewage on the ship into a sewage storage cabinet of an oil stain transfer trolley;
s7: finishing the sewage suction process, and re-winding the hose;
the operation steps of the sewage discharge process are as follows:
s01: keeping the oil stain transfer vehicle in an initialization state, and communicating a drain outlet of the pump body with a sewage treatment tank;
s02: uniformly mixing and stirring the sewage in the sewage storage cabinet in the oil stain transfer trolley;
s03: switching the pipeline and the valve body related to sewage discharge into a conducting state, and starting the pump body to discharge sewage;
s04: monitoring the liquid level of the sewage storage cabinet in the sewage discharge process; after the lowest liquid level is reached, the pump body stops running;
s05: re-closing the related valve body and recovering the oil stain transfer trolley to the initial state;
the fluid suction process is the same with sewage suction process, and during fluid pumped the fluid storage cabinet, the fluid process of getting rid of lies in with the difference of sewage discharge process: in the oil liquid removing process, the stirring and uniformly mixing process is not carried out on the oily waste liquid;
oil suction and oil discharge; the four working processes of sewage suction and sewage discharge are executed by controlling related execution elements by a third controller, wherein the execution elements comprise a first exhaust valve, a second exhaust valve, a first three-way valve, a second three-way valve, a fourth stop valve and a fifth stop valve; the sewage pump comprises a second self-sucking pump, a second sewage pump, a first motor, a liquid level meter and a second motor; the first exhaust valve and the second exhaust valve are respectively used for balancing the air pressure in the sewage storage cabinet and the oil storage cabinet; the first three-way valve is used for switching water inlet passages of the sewage storage cabinet and the oil storage cabinet; the second three-way valve is used for switching the discharge passages of the sewage storage cabinet and the oil storage cabinet; the fourth stop valve is used for controlling the on-off of the suction process of the second self-sucking pump; the fifth stop valve is used for controlling the on-off of the sewage discharging process of the second sewage discharging pump; the liquid level meter is used for detecting the real-time liquid levels of pollutants in the sewage storage cabinet and the oil storage cabinet; the first motor is used for driving the hose retracting mechanism to operate; the second motor is used for driving the stirring device in the sewage storage cabinet to operate; the third controller is also electrically connected with a third switch controller module, and the third switch controller module is used for inputting manual operation instructions to the third controller.
2. The operation control method of the oil contamination transfer vehicle according to claim 1, characterized in that: the third controller and the execution element execute the sewage pumping process as follows:
s1: in an initial state, an oil liquid storage cabinet and a sewage storage cabinet of the oil stain transfer trolley are vacant; the first exhaust valve, the second exhaust valve, the fourth stop valve, the fifth stop valve, the self-priming pump, the sewage pump, the first motor and the second motor are all in a closed state;
s2: an onshore operator sends a command of pumping the sewage to a third controller through a third switch control module, and the third controller controls the first three-way valve to be switched to a state of conducting a sewage pumping pipeline according to the relevant command;
s3: after the first three-way valve is switched, an onshore operator sends a pipe placing instruction to a third controller through a third switch control module; the third controller drives the first motor to rotate reversely, and the hose is released;
s4: during the hose release process, an operator pulls the hose and delivers the hose to ship workers;
s5: after the hose is released to reach the required length, an operator on the shore issues a hose release stopping instruction to the third controller through the third switch control module, when the third controller receives the hose release stopping instruction of the operator or the hose release reaches the maximum limit, the third controller controls the first motor to stop rotating, the hose release is finished, and a worker on the ship butts the quick connector of the hose with the sewage discharge interface on the ship;
s6: after the pipe discharging process is finished, an operator on the shore starts a second self-sucking pump to suck the sewage on the ship into a sewage storage cabinet;
s7: after the sewage pumping process is finished, an operator on the ship disconnects the quick connector; the shore operating personnel assigns the instruction to the third controller module through the third switch control module, and the first motor of third control module drive antiport rolls up the hose, and after the hose roll-up was accomplished, the shore operating personnel closed first motor through switch control module.
3. The operation control method of the oil contamination transfer vehicle according to claim 2, characterized in that: the sewage suction process in step S6 includes the steps of:
s61: the third controller obtains the total reserve volume V of the sewage on the shipShip with a detachable hullThe third controller is based on the volume V of the sewage storage tankCabinetAnd VShip with a detachable hullThe relationship of (a) determines the strategy of the current round of pumping:
(1) when V isShip with a detachable hull≤VCabinetThe maximum suction volume Vmax of the self-priming pump wheel is VShip with a detachable hullCompletely pumping out the sewage on the ship at one time;
(2) when V isShip with a detachable hull＞VCabinetWhen the self-priming pump is used, the maximum suction volume of the self-priming pump wheel is Vmax ═ VCabinetStep-by-step pumping of the sewage on the ship;
s62: after the strategy is determined, the third controller respectively controls the second exhaust valve to be opened, the fourth stop valve to be opened and the second self-priming pump to operate to suck the sewage;
s63: in the sewage suction process, the flow meter counts the flow of fluid flowing through the self-priming pump, and sends a flow counting result to the third controller, and the third controller determines the running state of the second self-priming pump according to the relation between the maximum suction volume Vmax and the real-time flow Vi in the current round of suction strategy; the operation control strategy of the second self-priming pump is as follows:
(1) when Vmax-Vi is larger than delta V, the second self-priming pump continues to operate;
(2) when Vmax-Vi is less than or equal to delta V, the second self-priming pump stops running;
the delta V is the maximum loss value of water collected in the pumping process and water obtained in the condition of considering the viscosity loss of pipelines and equipment, the water collected refers to the volume of fluid extracted from a ship, and the water obtained refers to the volume of fluid stored in the storage cabinet;
s64: after the second self-priming pump stops operating, the third controller controls the fourth stop valve to close, and the second exhaust valve is closed; the pumping process is completed.
4. The operation control method of the oil contamination transfer vehicle according to claim 1, characterized in that: the third controller and the execution element execute the sewage pumping process as follows:
s01: an operator moves the transfer trolley to a position near a sewage treatment station, and connects a quick connector at the outlet of the sewage pump with a sewage pipeline communicated with a sewage pool; in an initial state, the second sewage pump, the second exhaust valve, the fourth stop valve and the second motor are all in a closed state;
s02: an operator sends a sewage discharge instruction to a third controller through a third switch control module, and the third controller controls a second motor to operate for a specified period to stir and uniformly mix the sewage in the sewage storage cabinet;
s03: after the blending is finished, the third controller respectively switches the second three-way valve to enable the sewage discharge pipeline to be conducted, the second exhaust valve and the fifth stop valve are opened, and the second sewage pump operates; discharging the sewage from the sewage storage cabinet to a sewage treatment tank;
s04: in the sewage discharge process, the second liquid level meter monitors the real-time liquid level h in the sewage storage cabinet, and the third controller receives the detection result of the liquid level meter and makes the following judgment according to the result:
(1) when the real-time liquid level h is larger than or equal to h0, the second sewage pump continues to operate;
(2) when the real-time liquid level h is less than h0, the second sewage pump stops running;
h0 is an empirical value, h0 is the historical minimum level of fluid in the sewage storage tank after the second sewage pump discharges sewage;
s05: and after the second sewage pump stops operating, the third controller controls the second exhaust valve and the fifth stop valve to be closed, so that the sewage discharge process is completed.
5. The operation control method of the oil contamination transfer vehicle according to claim 1, characterized in that: the greasy dirt transfer car (buggy) includes: the device comprises a chassis, an oil storage cabinet, a sewage storage cabinet, a suction pump mechanism, a pipe retraction and release mechanism, a discharge pump mechanism, a fourth stop valve, a fifth stop valve and a third control box;
the top of the oil liquid storage cabinet is provided with a first exhaust valve; the top of the sewage storage cabinet is provided with a second exhaust valve; the suction pump mechanism comprises a second self-sucking pump, a hose, a suction pipeline and a first three-way valve, and the end part of the hose is provided with a quick joint for connecting with a ship sewage storage device; the suction pipeline comprises a first suction pipeline and a second suction pipeline, an outlet of the second self-sucking pump is respectively communicated with one ends of the first suction pipeline and the second suction pipeline through a first three-way valve, the other end of the first suction pipeline extends into an inner cavity of the oil liquid storage cabinet, and the other end of the second suction pipeline extends into an inner cavity of the sewage storage cabinet;
the drain pump mechanism comprises a second drain pump, a drain pipe and a second three-way valve, and the drain pipe comprises a first drain pipe and a second drain pipe; one end of the first discharge pipeline extends to the bottom of the inner cavity of the oil liquid storage cabinet; one end of the second sewage discharge pipeline extends to the bottom of the sewage storage cabinet, and the other ends of the first sewage discharge pipeline and the second sewage discharge pipeline are communicated with an inlet of the second sewage discharge pump through a second three-way valve;
the fourth stop valve is positioned at the inlet of the second self-sucking pump and used for controlling the on-off of the oil stain sucking process; the fifth stop valve is positioned at the outlet of the second sewage pump and used for controlling the on-off of the oil stain discharge process;
the third control box comprises a third controller and a third switch control module; the third switch control module is used for sending a manual control instruction to the third controller; the third switch control module, the first exhaust valve, the second exhaust valve, the first three-way valve, the second three-way valve, the fourth stop valve, the fifth stop valve, the second self-priming pump, the second sewage pump and the first motor are all electrically connected with a third controller; the third controller is used for controlling the running states of the first exhaust valve, the second exhaust valve, the first three-way valve, the second three-way valve, the fourth stop valve, the fifth stop valve, the second self-priming pump, the second sewage pump and the first motor.
6. The oil-contaminated transfer vehicle operation control method according to claim 5, characterized in that: the pipe retracting mechanism is used for automatically retracting the hose; the pipe retracting and releasing mechanism comprises a support frame, a rotary drum, a left baffle, a right baffle, a pipe limiting mechanism, a first motor and a transmission mechanism; the rotary drum can be rotatably connected to the support frame, the left baffle and the right baffle are sleeved on the peripheries of two ends of the rotary drum, and the area between the left baffle and the right baffle on the rotary drum is a winding area of the hose; the rotary drum comprises an inner cavity, one end of the rotary drum is sealed, a pipe joint for connecting a hose is arranged on the outer wall of the rotary drum, and the pipe joint is communicated with the inner cavity of the rotary drum; the rotary drum is rotatably connected with the support frame through a bearing; the non-sealed end of the rotary drum is communicated with an inlet of a second self-priming pump through a flange, and the flange is rotatably and hermetically connected with the end part of the rotary drum; the tube limiting mechanism is used for adjusting the winding or releasing position of the hose on the rotary drum; the pipe limiting mechanism comprises a single-rotation reciprocating screw rod and a limiting pulley block; the limiting pulley block comprises a base, an upper pulley and a lower pulley, and the base is rotatably connected with a nut in the single-rotation reciprocating screw rod; the upper pulley and the lower pulley are arranged on the base, and are symmetrically arranged along the vertical direction and have the same rotating direction with the rotating direction; the hose passes through the pulley groove between the upper pulley and the lower pulley; the first motor drives the screw rod and the rotary drum in the single-rotation reciprocating screw rod to rotate simultaneously through the transmission structure.
7. The oil contamination transfer vehicle operation control method according to claim 6, characterized in that: the sewage storage cabinet is also internally provided with a stirring device, and the stirring device is used for uniformly mixing a sewage mixture stored in the sewage storage cabinet; the stirring device comprises a stirring impeller and a second motor, and the stirring impeller is positioned in the center of the inner cavity of the sewage storage cabinet and close to the bottom wall; the second motor is positioned at the top of the sewage storage cabinet, an output shaft of the second motor extends into the inner cavity along a through hole formed in the top of the sewage storage cabinet, and the output shaft is fixedly connected with the stirring impeller; the output shaft of the second motor is connected with the upper wall of the sewage storage cabinet through a bearing, the second motor is electrically connected with a third controller, and the third controller controls the running state of the second motor.
8. The operation control method of the oil contamination transfer vehicle according to claim 7, characterized in that: the oil storage cabinet and the sewage storage cabinet are respectively provided with a first liquid level meter and a second liquid level meter, the first liquid level meter and the second liquid level meter are electronic liquid level meters, the first liquid level meter and the second liquid level meter are electrically connected with a third controller, and the third controller calculates real-time storage amount in the oil storage cabinet and the sewage storage cabinet according to measurement values of the first liquid level meter and the second liquid level meter.
9. The oil-contaminated transfer vehicle operation control method according to claim 8, characterized in that: the surface of the rotary drum in the pipe retracting mechanism is also provided with a pipe releasing limit controller which is electrically connected with a third controller and is used for forcibly cutting off the rotation process of the motor when the hose release reaches the maximum limit; the tube placing limit controller is a contact type inductive switch, the contact type inductive switch comprises a first contact electrode and a second contact electrode, the first contact electrode is positioned on the surface of the rotary drum, and the second contact electrode is positioned on the surface of the tail end of the hose; the first contact electrode and the second contact electrode are in contact with each other in a state where the hose is stored, and are disconnected after the hose is completely released.
CN202011487354.5A 2020-12-16 2020-12-16 Operation control method of oil stain transfer vehicle Active CN112722229B (en)

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CN113682433B (en) * 2021-10-26 2021-12-24 浙江特勤卫星导航科技有限公司 Ship sewage onshore intelligent receiving method and device

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