A vacuum oil skimmer with agitator

Abstract

The present invention relates to the technical field of floating oil recovery, and specifically provides a vacuum oil recovery machine with an agitator, comprising an oil suction pipe; an oil suction head, which is sealed and connected to one end of the oil suction pipe and can push liquid into the oil suction pipe; a pushing head, which is sealed and connected to the other end of the oil suction pipe; an oil collection tank, which is sealed and connected to the end of the pushing head away from the oil suction pipe, and can reduce the pressure in the oil suction pipe and suck the liquid in the oil suction pipe. The present invention accelerates the liquid drawn into the oil suction pipe into the oil collection tank through the cooperation of a liquid drum and a plugging head, thereby avoiding the influence of oil attached to or accumulated in the pipe body on the liquid flowing along the oil suction pipe, resulting in reduced efficiency of the oil entering the oil collection tank.

Description

Technical Field

[0001] The invention relates to the field of floating oil recovery, in particular to a vacuum oil skimmer with a stirrer. Background Art

[0002] In recent years, with the development of society, the improvement of people's living standards and the advancement of science, human needs and development of various oils have increased. In the production, transportation and use of various oils, oil spills occur from time to time. For example, when using oil tankers to transport oil products, oil spills are prone to occur. The oil spills enter the water body and float on the water surface, which not only causes a waste of resources, but also has a bad impact on the ecological environment. At present, the types of water oil spill emergency equipment mainly include emergency unloading equipment, oil spill containment equipment, mechanical recovery equipment, waste oil storage and transportation equipment, oil spill dispersion equipment, and oil spill adsorption equipment. Among them, mechanical recovery equipment refers to oil recovery machines, and the types of oil recovery machines are divided into rotary drum oil recovery machines, rope oil recovery machines, belt oil recovery machines, weir oil recovery machines, suction oil recovery machines, dynamic inclined oil recovery machines, vacuum oil recovery machines, vortex oil recovery machines and oil recovery nets. Among them, vacuum oil skimmers are usually called "skimming heads", which are devices that use suction pumps or vacuum pumps to create vacuum in vacuum oil storage tanks and recover oil-water mixtures through the pressure difference at the skimming head. Vacuum skimmers have the characteristics of small operating device size, simple operation, easy to carry, mobile, insensitive to garbage, easy maintenance, and low cost.

[0003] For example, the patent document with application number CN201521057538.2 discloses a floating oil recovery and processing device, which utilizes a negative pressure vacuum tank to collect oil. When it is used specifically, the oil collector can be adjusted to move up and down by controlling the screw rod, so that the oil collecting pipe mouth is always kept at the oil-water interface, ensuring that the sewage floating oil automatically and completely enters the oil collector, thereby reducing the difficulty of processing the sewage oil, improving the heat dissipation effect of the sewage, and ensuring the normal operation of the sewage process.

[0004] However, the above utility model patent has limitations when facing oil with higher viscosity. If the viscosity of the oil is high, some of the oil will entangle with each other and accumulate into a large mass. After the oil just enters the oil collecting pipe, some of the oil will adhere to the inner wall of the oil collecting pipe (especially far away from the oil pumping port, because the oil near the oil pumping port will be washed by the water flow, thereby reducing the adhesion efficiency. However, the farther away from the oil pumping port, the lower the water flow washing efficiency will be, and the oil adhered to the inner wall of the oil collecting pipe will not be easily washed away). This will result in a reduction in the inner diameter of the oil collecting pipe, that is, the path for the oil to flow becomes narrower. Therefore, when the oil is subsequently pumped, the oil entering the pumping port will be The speed of the oil port becomes slower (the reason is that although the oil extraction port can be sucked, the inner diameter of the oil collection pipe is reduced, which means that the amount of suction is less, and because the lumpy oil has high viscosity, it is difficult to enter the oil port. At the same time, because the inner wall of the oil collection pipe is adhered to the oil, the subsequent oil entering the oil collection pipe will be affected by the oil adhered to the inner wall of the oil collection pipe, further reducing the oil fluid velocity), and the efficiency of the oil collection process is reduced. That is, when facing higher viscosity oil, the oil will adhere to the inner wall of the oil collection pipe (especially away from the oil extraction port), which reduces the flow rate of the subsequent oil entering, thereby causing the oil collection efficiency of the oil collection pipe to decrease. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in order to solve the problem that when facing oil with higher viscosity, the oil will adhere to the inner wall of the oil collection pipe, which reduces the flow rate of subsequent oil entering, thereby reducing the oil collection efficiency of the oil collection pipe. The present invention provides a vacuum oil collection machine with an agitator to solve the above problem.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a vacuum oil skimmer with a stirrer, comprising an oil suction pipe;

[0007] An oil suction head, the oil suction head is sealed and connected to one end of the oil suction pipe, and the oil suction head can push liquid into the oil suction pipe;

[0008] A push head, the push head is sealed and connected to the other end of the oil suction pipe;

[0009] An oil collecting tank, the oil collecting tank is sealedly connected to an end of the push head away from the oil suction pipe, and the oil collecting tank can reduce the pressure in the oil suction pipe and suck the liquid in the oil suction pipe;

[0010] Wherein, the pushing head comprises a liquid drum having one end sealedly connected to the oil suction head and the other end connected to the oil collecting tank, and a plugging head, wherein the liquid drum can be squeezed to reduce the inner diameter, and the plugging head is arranged at the end of the liquid drum away from the oil collecting tank, and when the liquid drum is pressurized, the plugging head can be pushed toward the end of the liquid drum by the inner wall of the liquid drum and / or the airflow in the liquid drum to plug the end of the liquid drum away from the oil collecting tank;

[0011] When the oil collecting tank sucks liquid, the oil suction pipe guides the liquid into the liquid drum;

[0012] When the drum liquid cylinder is squeezed, the inner wall of the pressure side of the drum liquid cylinder moves toward the axis and applies thrust toward both ends to drive the plugging head to plug the drum liquid cylinder and force the liquid into the oil collecting tank.

[0013] Preferably, a limiting cylinder is connected to the inner wall of the end of the drum away from the oil collecting tank and the corresponding position of the oil suction pipe, and the plugging head can slide in the limiting cylinder. A stepped groove is provided on the inner wall of the end of the limiting cylinder close to the oil collecting tank;

[0014] The plugging head comprises a limiting flower head which can slide along the limiting cylinder, and a sealing head is connected to a side of the limiting flower head close to the oil collecting tank, and the sealing head can slide into the stepped groove and limit the liquid.

[0015] Preferably, the inner wall of the limiting cylinder is provided with a plurality of limiting strips, and the surface of the limiting strips is provided with a guiding surface;

[0016] The limiting flower head comprises a central column connected to the sealing head through a connecting rod, a plurality of expansion columns are arranged on the edge of the central column, and the limiting strip can limit the expansion columns when they slide along the inner side of the limiting cylinder.

[0017] Preferably, an agitator rubber cylinder is installed on the inner side wall of the drum liquid cylinder, a flow guide is provided at the axial position of the agitator rubber cylinder, and a pushing arc surface is provided on the inner wall of one end of the flow guide close to the plugging head, and the pushing arc surface can push the plugging head to plug the drum liquid cylinder.

[0018] Preferably, a force bag ring is sleeved on the outer side of the drum liquid cylinder, and a plurality of reset members are arranged inside the force bag ring. The setting position of the reset members corresponds to the drum rubber cylinder. An air suction head is arranged at one end of the force bag ring close to the oil collecting tank, and a plurality of exhaust heads are arranged at the other end of the force bag ring. The force bag ring can guide the external gas to enter from the air suction head and be discharged from the exhaust head.

[0019] Both ends of each resetting member are provided with force applying strips.

[0020] Preferably, the oil suction head includes an agitator and a flow guide cover connected to the oil suction pipe, a float is installed on the outside of the flow guide cover, the float is connected to the agitator through a connecting rod, the agitator is arranged at one end of the flow guide cover away from the oil suction pipe, and the axis centerline of the agitator coincides with the axis centerline of the flow guide cover.

[0021] Preferably, the oil suction pipe comprises a pipe body connected to the oil suction head and an air injection sleeve connected to an end of the pipe body away from the oil suction head, and the air injection sleeve is conductively connected to the drum liquid cylinder;

[0022] At least one pair of conducting tubes is installed on the side wall of the gas injection sleeve, and one end of each conducting tube away from the gas injection sleeve is connected to each exhaust head one by one; a gas guide cavity is provided in the gas injection sleeve, and a plurality of conducting columns are provided in the gas guide cavity, and each conducting column can inject gas into the oil suction pipe.

[0023] Preferably, the guide column comprises an outer slide and an inner slide sleeved in the outer slide, the outer slide is arranged on the inner wall of the air guide cavity close to the guide tube, one end of the inner slide away from the outer slide is connected to the inner wall of the air guide cavity, and the inner slide can slide along the inner wall of the outer slide and guide the airflow in the air guide cavity into the tube body when sliding to a certain position;

[0024] A return piece is sleeved between the outer slide cylinder and the inner slide cylinder; when the force bag ring guides the gas to be discharged from the exhaust head, each of the guide tubes guides the gas into the gas guide cavity so that the inner wall of the gas injection sleeve pulls each inner slide cylinder to slide along the corresponding outer slide cylinder.

[0025] Preferably, a mounting sleeve is installed at the end of the oil collecting tank, and a plurality of intermittent airbags are arranged in the mounting sleeve, each intermittent airbag is arranged one-to-one corresponding to each of the reset members, and the intermittent airbag can expand and contract intermittently. When the intermittent airbag expands, the intermittent airbag presses against the side wall of the force bag ring and squeezes the force bag ring.

[0026] The beneficial effects of the present invention are as follows: 1. Through the cooperation of the liquid drum and the plugging head, the liquid drawn into the oil suction pipe is accelerated to be sent to the oil collecting tank, thereby preventing the oil attached to or accumulated in the pipe body from affecting the liquid flowing along the oil suction pipe, resulting in a reduced efficiency of the oil entering the oil collecting tank.

[0027] 2. Through the cooperation of the agitator and the guide cover, the agitator can break up the high-viscosity oil spill layer and mix it with a proper amount of water during stirring, and then send it into the oil suction pipe. At this time, the water flowing along the oil suction pipe can lubricate the pipe wall to reduce the delivery pressure.

[0028] 3. Through the cooperation of the force bag ring and the gas injection sleeve, the operation of injecting gas into the oil suction pipe can be realized. After the gas enters the oil suction pipe, the inner wall of the pipe body can be flushed with gas, so that the oil attached to or accumulated in the pipe body can be "spit out", which is convenient for the subsequent oil to enter. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is the appearance diagram of the force capsule ring in the present invention.

[0032] Figure 3 It is a schematic diagram of the structure of the drum liquid cylinder in the present invention.

[0033] Figure 4 It is a schematic diagram of the structure of the agitator rubber cylinder in the present invention.

[0034] Figure 5 It is a schematic diagram of the plugging head structure in the present invention.

[0035] Figure 6 yes Figure 3 Enlarged view of point A in the middle;

[0036] Figure 7 It is a structural schematic diagram of the prior art when a pump body is installed on an oil suction head.

[0037] Figure numerals: 1. Oil suction pipe; 2. Oil suction head; 3. Oil collecting tank; 4. Drum liquid cylinder; 5. Sealing head; 6. Force bag ring; 11. Tube body; 12. Air injection sleeve; 13. Guide pipe; 14. Air guide cavity; 15. Outer slide cylinder; 16. Inner slide cylinder; 21. Agitator; 22. Guide cover; 23. Float; 31. Mounting sleeve; 32. Intermittent air bag; 41. Limiting cylinder; 42. Step groove; 43. Limiting strip; 44. Guide surface; 45. Agitator rubber cylinder; 46. Guide channel; 47. Pushing arc surface; 51. Limiting flower head; 52. Sealing head; 511. Center column; 512. Deployment column; 61. Reset member; 62. Force bar; 63. Suction head. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In order to solve the problem raised in the above background technology, when facing oil with higher viscosity, the oil will adhere to the inner wall of the oil collecting pipe, so that the flow rate of subsequent oil entering is reduced, thereby reducing the oil collection efficiency of the oil collecting pipe.

[0040] like Figures 1 to 7 As shown, the present invention provides an embodiment of a vacuum oil skimmer with a stirrer.

[0041] Specifically, the vacuum oil skimmer with a stirrer comprises:

[0042] Oil suction pipe 1;

[0043] The oil suction head 2 is sealed and connected to one end of the oil suction pipe 1, and the oil suction head 2 can push liquid into the oil suction pipe 1;

[0044] A push head, which is sealed and connected to the other end of the oil suction pipe 1;

[0045] The oil collecting tank 3 is sealed and connected to the end of the push head away from the oil suction pipe 1. The oil collecting tank 3 can reduce the pressure in the oil suction pipe 1 and suck the liquid in the oil suction pipe 1;

[0046] The push head includes a liquid drum 4 which is sealedly connected to the oil suction head 2 at one end and connected to the oil collecting tank 3 at the other end, and a plugging head 5. The liquid drum 4 can be squeezed to reduce the inner diameter. The plugging head 5 is arranged at the end of the liquid drum 4 away from the oil collecting tank 3. When the liquid drum 4 is pressurized, the plugging head 5 can be pushed toward the end of the liquid drum 4 by the inner wall of the liquid drum 4 and / or the airflow in the liquid drum 4 to plug the end of the liquid drum 4 away from the oil collecting tank 3.

[0047] When the oil collecting tank 3 sucks the liquid, the oil suction pipe 1 guides the liquid into the drum 4;

[0048] When the drum liquid cylinder 4 is squeezed, the inner wall of the pressure side of the drum liquid cylinder 4 moves toward the axis direction and applies thrust to both ends to drive the plugging head 5 to plug the drum liquid cylinder 4 and force the liquid into the oil collecting tank 3.

[0049] In the present invention, liquid refers to a mixture of oil and water, the oil collecting tank 3 is a vacuum tank, and the oil collecting tank 3 extracts oil by siphoning.

[0050] The present invention can accelerate the liquid drawn into the oil suction pipe 1 into the oil collecting tank 3 through the cooperation of the drum liquid cylinder 4 and the plugging head 5. In its specific implementation, the liquid is directly sucked through the oil collecting tank 3, and then the liquid enters the drum liquid cylinder 4 along the oil suction pipe 1, and then pressure is applied to the side wall of the drum liquid cylinder 4, and then the inner wall of the pressure side of the drum liquid cylinder 4 moves toward the axial direction and applies thrust to both ends to drive the plugging head 5 to block the drum liquid cylinder 4 and force the liquid to enter the oil collecting tank 3. During the whole operation, the squeezed drum liquid cylinder 4 will apply a driving force to the liquid, so that when it enters the oil collecting tank 3, the flow rate of the oil will not be reduced due to the oil adhering to the inner wall of the oil collecting pipe.

[0051] If the end of the liquid drum 4 away from the oil collecting tank 3 is not blocked, after squeezing the liquid drum 4, the airflow in the liquid drum 4 will be discharged from both ends of the liquid drum 4 at the same time, resulting in a decrease in the driving force of the airflow. Therefore, it is preferred that: a limiting cylinder 41 is connected to the inner wall of the end of the liquid drum 4 away from the oil collecting tank 3 and the corresponding position of the oil suction pipe 1, and the plugging head 5 can slide in the limiting cylinder 41, and a stepped groove 42 is opened on the inner wall of the end of the limiting cylinder 41 close to the oil collecting tank 3;

[0052] The plugging head 5 includes a limiting flower head 51 that can slide along the limiting cylinder 41. The limiting flower head 51 is connected to a sealing head 52 on one side close to the oil collecting tank 3. The sealing head 52 can slide into the stepped groove 42 and limit the liquid.

[0053] The plugging head 5 in the prior art (such as a one-way rubber valve used in a vacuum compression bag) is easily attached to the valve due to the high viscosity of the oil during use, which affects the flow rate of the liquid entering the drum liquid cylinder 4.

[0054] The plugging head 5 provided in this embodiment is used in a specific manner:

[0055] Under normal circumstances, the sealing head 52 is affected by its own gravity and is separated from the stepped groove 42 (at this time, the limiting flower head 51 is stuck in the limiting cylinder 41, so the sealing head 52 will not move at will. There are many ways to limit the limiting flower head 51 through the limiting cylinder 41, such as setting steps in the limiting cylinder 41 or setting grooves to limit the limiting flower head 51). The structure of the sealing head 52 is as follows: Figure 3 The two ends are spherical and the central area is cylindrical.

[0056] When the liquid enters the drum liquid barrel 4 along the oil suction pipe 1, the liquid will flow from the end of the sealing head 52 and fall into the drum liquid barrel 4, and will not accumulate at the end of the sealing head 52. Once the drum liquid barrel 4 is squeezed, the inner diameter of the drum liquid barrel 4 will shrink (specifically, the central area), and then the pressure in the shrunken drum liquid barrel 4 will decrease. At the same time, the inner walls of the drum liquid barrel 4 will approach each other, which will apply a driving force to the sealing head 52, causing the sealing head 52 to slide into the stepped groove 42 and restrict the liquid, so that the liquid in the oil suction pipe 1 will no longer enter the drum liquid barrel 4, and the gas in the drum liquid barrel 4 will no longer be discharged from the end of the restriction cylinder 41 away from the oil collecting tank 3.

[0057] In order to make the limiting flower head 51 be stuck in the limiting cylinder 41, and prevent the liquid from accumulating in the area of ​​the limiting cylinder 41 that limits the limiting flower head 51 (for example, a large amount of oil with high viscosity adheres to the area that limits the limiting flower head 51), it is preferred that a plurality of limiting strips 43 are provided on the inner wall of the limiting cylinder 41, and a guide surface 44 is provided on the surface of the limiting strips 43;

[0058] The limiting flower head 51 includes a central column 511 connected to the sealing head 52 via a connecting rod. A plurality of expansion columns 512 are provided at the edge of the central column 511 . The limiting strip 43 can limit the expansion columns 512 when they slide along the inner wall of the limiting cylinder 41 .

[0059] In this embodiment, the structure of the plurality of expansion columns 512 and the central column 511 can refer to Figure 4 and Figure 5 Such a configuration can prevent the flow of the liquid from being blocked by the limiting flower head 51.

[0060] When the liquid enters the drum liquid cylinder 4 from the oil suction pipe 1, it will first enter the limiting cylinder 41, slide along the inner wall of the limiting cylinder 41 and fall into the drum liquid cylinder 4. When the liquid slides along the inner wall of the limiting cylinder 41, due to the existence of the guide surface 44, the liquid will not accumulate in the limiting strip 43 area, but will slide along the guide surface 44. At the same time, when the limiting flower head 51 slides along the inner wall of the limiting cylinder 41, the existence of the limiting strip 43 is equivalent to reducing the inner diameter of the limiting cylinder 41, so the movement state of the multiple expansion columns 512 will be restricted.

[0061] Since there is a gap between the sealing head 52 and the stepped groove 42, the sealing head 52 may not be pushed into the stepped groove 42 by airflow alone. Therefore, in order to allow the sealing head 52 to fully enter the stepped groove 42, preferably, an agitator rubber cylinder 45 is installed on the inner side wall of the drum liquid cylinder 4, and a guide channel 46 is provided at the axial position of the agitator rubber cylinder 45. The inner wall of the guide channel 46 at one end close to the plugging head 5 is provided with a pushing arc surface 47, and the pushing arc surface 47 can push the plugging head 5 to seal the drum liquid cylinder 4.

[0062] When the drum liquid cylinder 4 is pressurized, the inner wall of the drum liquid cylinder 4 will move closer to the axial centerline area of ​​the drum liquid cylinder 4 from the force-applying side (preferably, force is applied from two corresponding sides at the same time, for example, Figure 4 For example, if force is applied from the left or right sides, the inner wall of the drum liquid cylinder 4 will approach the axial center line area of ​​the drum liquid cylinder 4 from the left or right sides), the agitator rubber cylinder 45 will also be pushed by the pressure, so that the inner wall of the agitator rubber cylinder 45 will also approach the axial center line area of ​​the drum liquid cylinder 4 from the force application side.

[0063] When the inner wall of the rubber drum 45 approaches the axial center area of ​​the liquid drum 4 , the arc surface 47 gradually contacts the sealing head 52 , thereby pushing the sealing head 52 into the stepped groove 42 to seal the limiting cylinder 41 .

[0064] During specific use, it can be foreseen that when the oil collecting tank 3 performs liquid suction, a suction force will be applied to the sealing head 52, so that the sealing head 52 will pull the limiting flower head 51 and pull the limiting flower head 51 away from the limiting strip 43. Therefore, in order to solve this problem, a plurality of pillars can be installed on the inner wall of the guide channel 46 of the agitator rubber cylinder 45. In other words, the sealing head 52 can be supported by the pillars at this time.

[0065] In order to realize the force on the drum liquid cylinder 4, it is preferred that: a force bag ring 6 is sleeved on the outer side of the drum liquid cylinder 4, and a plurality of reset members 61 are arranged inside the force bag ring 6. The setting position of the reset member 61 corresponds to the agitator rubber cylinder 45. An air suction head 63 is arranged at one end of the force bag ring 6 close to the oil collecting tank 3, and a plurality of exhaust heads are arranged at the other end of the force bag ring 6. The force bag ring 6 can guide the external gas to enter from the air suction head 63 and be discharged from the exhaust head; force bars 62 are arranged at both ends of each reset member 61.

[0066] The existing technology can choose manual or mechanical push (such as a clamping rod) to apply force, but due to the long operation time, manual fatigue is not conducive to long-term operation, while the structure used in mechanical operation occupies a large space and the clamping area is not conducive to replacement.

[0067] The length of the drum liquid cylinder 4 provided by the present invention is not limited to Figure 1 As shown, its length can occupy 1 / 2 of the length of the oil suction pipe 1, or can be longer. At the same time, the suction head 63 and the exhaust head area on the force-applying bag ring 6 provided by the present invention can be installed with a one-way valve (such as a rubber one-way valve, such as a one-way valve on a vacuum compression bag) so that the suction head 63 and the exhaust head area on the force-applying bag ring 6 can only perform suction and exhaust actions respectively.

[0068] The driving method provided by the present invention is as follows during specific use:

[0069] Just apply pressure directly toward the force bag ring 6 from the corresponding side, and then the pressurized force bag ring 6 will be compressed. At this time, the airflow in the force bag ring 6 will be discharged from the exhaust head, and the pressurized force bag ring 6 will push the force bar 62 corresponding to the pressure area, and then the pushed force bar 62 will push the corresponding reset member 61, (the force bar 62 refers to the force bar 62 set at the other end of the pushed reset member 61) and the drum liquid cylinder 4 in turn, thereby completing the squeezing of the drum liquid cylinder 4.

[0070] A mounting sleeve 31 is installed at the end of the oil collecting tank 3, and a plurality of intermittent airbags 32 are arranged in the mounting sleeve 31. Each intermittent airbag 32 is arranged one-to-one corresponding to each reset member 61. The intermittent airbag 32 can expand and contract intermittently. When the intermittent airbag 32 expands, the intermittent airbag 32 presses against the side wall of the force bag ring 6 and squeezes the force bag ring 6.

[0071] When the force-applying bag ring 6 is pressurized, the intermittent airbag 32 can be directly inflated by an external air pump (the intermittent airbag 32 can be provided with two, for details, see Figure 3 ), after which the inflated intermittent airbag 32 will gradually expand, and at the same time, the end of the intermittent airbag 32 will press against the side wall of the force bag ring 6 and squeeze the force bag ring 6, thereby completing the pressure on the force bag ring 6. After completing one pressure application on the force bag ring 6, the gas in the intermittent airbag 32 can be discharged through the timing solenoid valve on the intermittent airbag 32 (the timing time of the timing solenoid valve is to start releasing the gas in the intermittent airbag 32 after completing the pressure on the force bag ring 6, and the starting time is at least 5 seconds. At this time, the external air pump temporarily stops injecting gas).

[0072] After the gas in the intermittent airbag 32 is discharged, it means that the force bag ring 6 is no longer under pressure. Then, the reset member 61 is reset, pushing the force bag ring 6 to reset, so that the force bag ring 6 is inflated again through the suction head 63, so that the pressure operation can be performed again.

[0073] In this force application mode, the length of the force application bag ring 6 can be changed following the change of the drum liquid cylinder 4, and the space occupied by the force application bag ring 6 and the intermittent air bag 32 is small.

[0074] In order to speed up the fluidity of the liquid when it enters the oil suction pipe 1, it is preferred that: the oil suction head 2 includes an agitator 21 and a flow guide cover 22 which is conductively connected to the oil suction pipe 1, a float 23 is installed on the outer side of the flow guide cover 22, the float 23 is connected to the agitator 21 through a connecting rod, the agitator 21 is arranged at one end of the flow guide cover 22 away from the oil suction pipe 1, and the axis center line of the agitator 21 coincides with the axis center line of the flow guide cover 22.

[0075] In this embodiment, the connection between the float 23 and the agitator 21 can be referred to Figure 1 As shown, a clamp is installed on the side wall of the float 23 , a connecting rod is detachably connected to the clamp, and the connecting rod is connected to the agitator 21 .

[0076] When the oil collecting tank 3 extracts oil, the agitator 21 can perform a stirring operation (the agitator 21 can be turned on and off by an external remote control device, and the connection method with the remote control device can be Bluetooth, etc. The agitator 21 can be driven by a built-in battery, wherein the function of the float 23 is to increase the buoyancy of the deflector 22 so that the deflector 22 will not be driven by the agitator 21 to sink into the water). When stirring, the agitator 21 can break up the high-viscosity oil spill layer and mix it with a proper amount of water so as to be sent from the deflector 22 to the oil suction pipe 1. In the mixed liquid entering the oil suction pipe 1, the water flowing along the oil suction pipe 1 can play a role in lubricating the pipe wall to reduce the delivery pressure.

[0077] In order to prevent the liquid from being affected by the oil adhering to the inner wall of the oil suction pipe 1 after entering the oil suction pipe 1, it is preferred that: the oil suction pipe 1 includes a pipe body 11 connected to the oil suction head 2 and an air injection sleeve 12 connected to the end of the pipe body 11 away from the oil suction head 2, and the air injection sleeve 12 is conductively connected to the drum 4;

[0078] At least one pair of conducting tubes 13 is installed on the side wall of the air injection sleeve 12, and one end of each conducting tube 13 away from the air injection sleeve 12 is respectively connected to each exhaust head one by one; an air guide cavity 14 is provided in the air injection sleeve 12, and a plurality of conducting columns are provided in the air guide cavity 14, and each conducting column can inject gas into the oil suction pipe 1.

[0079] When the airflow in the force bag ring 6 is discharged from the exhaust head, it will directly enter the air injection sleeve 12 through the guide pipe 13, and then fill the air guide cavity 14 in the air injection sleeve 12. The gas filling the air guide cavity 14 will gradually be filled into the oil suction pipe 1 from the guide column.

[0080] The conducting column includes an outer slide 15 and an inner slide 16 sleeved in the outer slide 15. The outer slide 15 is arranged on the inner wall of the air guiding cavity 14 close to the conducting tube 13. One end of the inner slide 16 away from the outer slide 15 is connected to the inner wall of the air guiding cavity 14. The inner slide 16 can slide along the inner wall of the outer slide 15 and guide the airflow in the air guiding cavity 14 into the tube body 11 when sliding to a certain position.

[0081] A return piece is sleeved between the outer slide cylinder 15 and the inner slide cylinder 16; when the force bag ring 6 guides the gas to be discharged from the exhaust head, each guide tube 13 guides the gas into the gas guide cavity 14 so that the inner wall of the gas injection sleeve 12 pulls each inner slide cylinder 16 to slide along the corresponding outer slide cylinder 15.

[0082] When the airflow enters the air guide cavity 14, it gradually pushes the inner side of the air injection sleeve 12 to expand gradually. Figure 6 , and then the expanded inner wall of the gas injection sleeve 12 will pull the inner slide 16 to slide along the outer slide 15, and when the inner slide 16 slides along the outer slide 15, it will compress the return member (the return member is preferably a spring) so that the inner slide 16 can be quickly reset when there is no air intake in the subsequent air guide cavity 14. The outer slide 15 and the inner slide 16 are provided to prevent the sealing head 52 from performing the blocking operation, and the air flow in the air guide cavity 14 will enter the tube body 11. If this happens, the force of the gas flushing the inner wall of the tube body 11 will be greatly reduced.

[0083] When the inner slide tube 16 slides along the inner wall of the outer slide tube 15 to a certain position, the air flow in the air guide cavity 14 can be guided to enter the tube body 11 (in Figure 6 For example, in the figure, point p represents a hole on the inner slide cylinder 16, and the gas can enter the tube body 11 from point p), and the gas is flushed on the inner wall of the tube body 11, so that the oil attached to or accumulated in the tube body 11 can be "spitted out", which facilitates the entry of subsequent oil.

[0084] When in use, oil can be extracted through the oil collection tank 3, and the stirrer 21 is started at this time. When the stirrer 21 stirs, the high-viscosity oil spill layer can be broken up and mixed with a proper amount of water to be sent to the oil suction pipe 1. In the mixed liquid entering the oil suction pipe 1, the water flowing along the oil suction pipe 1 can play a role in lubricating the pipe wall to reduce the delivery pressure. After that, the liquid will enter the drum liquid cylinder 4 along the oil suction pipe 1, and finally enter the oil collection tank 3 from the drum liquid cylinder 4.

[0085] Once it is found that the speed at which the oil suction pipe 1 absorbs the oil is reduced, at this time, the intermittent airbag 32 can be injected with air through an external air pump. After that, the injected intermittent airbag 32 will gradually expand. At the same time, the end of the intermittent airbag 32 will press against the side wall of the force bag ring 6 and squeeze the force bag ring 6, thereby completing the pressure on the force bag ring 6.

[0086] Then the pressurized force bag ring 6 will be compressed, and the air flow in the force bag ring 6 will be discharged from the exhaust head, and the pressurized force bag ring 6 will push the force bar 62 corresponding to the pressure area, and then the pushed force bar 62 will push the corresponding reset member 61, (the force bar 62 refers to the force bar 62 set at the other end of the pushed reset member 61) and the drum liquid cylinder 4 in turn, thereby completing the squeezing of the drum liquid cylinder 4.

[0087] When the liquid drum 4 is pressurized, the inner wall of the liquid drum 4 will approach the axial center area of ​​the liquid drum 4 from the force-applying side, and the agitator rubber cylinder 45 will also be pushed by the pressure, so that the inner wall of the agitator rubber cylinder 45 will also approach the axial center area of ​​the liquid drum 4 from the force-applying side. In the process of the inner wall of the agitator rubber cylinder 45 approaching the axial center area of ​​the liquid drum 4, the pushing arc surface 47 will gradually contact the sealing head 52, thereby pushing the sealing head 52 into the stepped groove 42 to achieve the blocking of the limiting cylinder 41, so that the liquid in the oil suction pipe 1 will no longer enter the liquid drum 4, and at the same time, the gas in the liquid drum 4 will no longer be discharged from the end of the limiting cylinder 41 away from the oil collection tank 3, but push the liquid into the oil collection tank 3 from the other end, so that the flow rate of the liquid entering is accelerated, instead of slowly creeping in, that is, the influence of the oil attached to the inner wall of the oil suction pipe 1 is eliminated.

[0088] At the same time, when the airflow in the force bag ring 6 is discharged from the exhaust head, it will directly enter the gas injection sleeve 12 through the guide tube 13, and then fill the gas guide cavity 14 in the gas injection sleeve 12. After entering the gas guide cavity 14, the airflow will gradually push the inner side of the gas injection sleeve 12 to gradually expand. Figure 6 , and then the expanded inner wall of the gas injection sleeve 12 will pull the inner slide 16 to slide along the outer slide 15, and when the inner slide 16 slides along the outer slide 15, it will compress the return member (the return member is preferably a spring) so that the inner slide 16 can be quickly reset when there is no air intake in the subsequent air guide cavity 14.

[0089] When the inner slide tube 16 slides along the inner wall of the outer slide tube 15 to a certain position, the air flow in the air guide cavity 14 can be guided to enter the tube body 11 (in Figure 6 For example, in the figure, point p represents a hole on the inner slide cylinder 16, and the gas can enter the tube body 11 from point p, and the sliding position of the inner slide cylinder 16 should at least expose point p), and the gas is flushed on the inner wall of the tube body 11 so that the oil attached to or accumulated in the tube body 11 can be "spitted out", which facilitates the entry of subsequent oil.

[0090] After the pressure on the force bag ring 6 is applied once, the gas in the intermittent air bag 32 can be discharged through the timing solenoid valve on the intermittent air bag 32. After the gas in the intermittent air bag 32 is discharged, it means that the force bag ring 6 is no longer under pressure. After that, the reset member 61 is reset, pushing the force bag ring 6 to reset, so that the force bag ring 6 is inflated again through the suction head 63, so that the pressure operation can be performed again.

[0091] Based on the above, it can be seen that the present invention has the following improvements:

[0092] 1. Through the cooperation of the liquid drum 4 and the plugging head 5, the liquid drawn into the oil suction pipe 1 is accelerated and sent to the oil collecting tank 3, thereby preventing the oil attached to or accumulated in the pipe body 11 from affecting the liquid flowing along the oil suction pipe 1, resulting in a decrease in the efficiency of the oil entering the oil collecting tank 3.

[0093] 2. Through the cooperation of the agitator 21 and the guide cover 22, the agitator 21 can break up the high-viscosity oil spill layer during stirring and mix it with a proper amount of water to be sent into the oil suction pipe 1. In the mixed liquid entering the oil suction pipe 1, the water flowing along the oil suction pipe 1 can play a role in lubricating the pipe wall to reduce the delivery pressure.

[0094] 3. Through the cooperation of the force bag ring 6 and the gas injection sleeve 12, the operation of injecting gas into the oil suction pipe 1 can be realized. After the gas enters the oil suction pipe 1, the gas can be flushed on the inner wall of the tube body 11, so that the oil attached to or accumulated in the tube body 11 can be "spitted out", which is convenient for the subsequent oil to enter.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0096] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vacuum oil skimmer with a stirrer, comprising: Oil suction pipe (1); An oil suction head (2), the oil suction head (2) being sealedly connected to one end of the oil suction pipe (1), and the oil suction head (2) being capable of pushing liquid into the oil suction pipe (1); A push head, the push head being sealedly connected to the other end of the oil suction pipe (1); An oil collecting tank (3), the oil collecting tank (3) being sealedly connected to an end of the push head away from the oil suction pipe (1), the oil collecting tank (3) being capable of reducing the pressure in the oil suction pipe (1) and sucking the liquid in the oil suction pipe (1); It is characterized in that in, The push head comprises a liquid drum (4) having one end sealedly connected to the oil suction pipe (1) and the other end connected to the oil collecting tank (3), and a plugging head (5); the liquid drum (4) can be squeezed to reduce the inner diameter; the plugging head (5) is arranged at the end of the liquid drum (4) away from the oil collecting tank (3); when the liquid drum (4) is pressurized, the plugging head (5) can be pushed toward the end of the liquid drum (4) by the inner wall of the liquid drum (4) and / or the airflow in the liquid drum (4) to plug the end of the liquid drum (4) away from the oil collecting tank (3); When the oil collecting tank (3) sucks liquid, the oil suction pipe (1) guides the liquid into the liquid drum (4); When the liquid drum (4) is squeezed, the inner wall of the pressure-bearing side of the liquid drum (4) moves toward the axis and applies thrust toward both ends, so as to drive the plugging head (5) to plug the liquid drum (4) and force the liquid into the oil collecting tank (3).

2. A vacuum oil skimmer with a stirrer as claimed in claim 1, characterized in that: A limiting cylinder (41) is connected to the inner wall of one end of the drum liquid cylinder (4) away from the oil collecting tank (3) at a position corresponding to the oil suction pipe (1), and the plugging head (5) is capable of sliding in the limiting cylinder (41). A stepped groove (42) is formed on the inner wall of one end of the limiting cylinder (41) close to the oil collecting tank (3); The plugging head (5) comprises a limiting flower head (51) capable of sliding along the inside of the limiting cylinder (41); a sealing head (52) is connected to a side of the limiting flower head (51) close to the oil collecting tank (3); and the sealing head (52) is capable of sliding into the stepped groove (42) and restricting the liquid.

3. A vacuum oil skimmer with a stirrer as claimed in claim 2, characterized in that: The inner wall of the limiting cylinder (41) is provided with a plurality of limiting strips (43), and the surface of the limiting strips (43) is provided with a guide surface (44); The limiting flower head (51) comprises a central column (511) connected to the sealing head (52) via a connecting rod, a plurality of expansion columns (512) are provided on the edge of the central column (511), and the limiting strip (43) is capable of limiting the expansion columns (512) when they slide along the inner wall of the limiting cylinder (41).

4. A vacuum oil skimmer with a stirrer as claimed in claim 1 or 2, characterized in that: An agitating rubber cylinder (45) is installed on the inner side wall of the drum liquid cylinder (4), a flow guide (46) is provided at the axial position of the agitating rubber cylinder (45), and a pushing arc surface (47) is provided on the inner wall of one end of the flow guide (46) close to the plugging head (5), and the pushing arc surface (47) can push the plugging head (5) to plug the drum liquid cylinder (4).

5. A vacuum oil skimmer with a stirrer as claimed in claim 4, characterized in that: The outer side of the drum liquid cylinder (4) is sleeved with a force capsule ring (6), and a plurality of reset members (61) are arranged inside the force capsule ring (6). The reset members (61) are arranged at positions corresponding to the drum rubber cylinder (45). An air suction head (63) is arranged at one end of the force capsule ring (6) close to the oil collecting tank (3), and a plurality of air exhaust heads are arranged at the other end of the force capsule ring (6). The force capsule ring (6) can guide external gas to enter from the air suction head (63) and be discharged from the air exhaust head. Both ends of each resetting member (61) are provided with force applying strips (62).

6. A vacuum oil skimmer with a stirrer as claimed in claim 1 or 2, characterized in that: The oil suction head (2) comprises an agitator (21) and a flow guide cover (22) which is conductively connected to the oil suction pipe (1). A float (23) is installed on the outer side of the flow guide cover (22). The float (23) is connected to the agitator (21) via a connecting rod. The agitator (21) is arranged at one end of the flow guide cover (22) away from the oil suction pipe (1), and the axis center line of the agitator (21) coincides with the axis center line of the flow guide cover (22).

7. The vacuum oil skimmer with a stirrer according to claim 5, characterized in that: The oil suction pipe (1) comprises a pipe body (11) connected to the oil suction head (2) and an air injection sleeve (12) connected to an end of the pipe body (11) away from the oil suction head (2), wherein the air injection sleeve (12) is conductively connected to the drum liquid cylinder (4); At least one pair of conducting tubes (13) is installed on the side wall of the gas injection sleeve (12), and one end of each conducting tube (13) away from the gas injection sleeve (12) is connected to each exhaust head in a one-to-one correspondence; a gas guide cavity (14) is provided in the gas injection sleeve (12), and a plurality of conducting columns are provided in the gas guide cavity (14), and each conducting column can inject gas into the oil suction pipe (1).

8. The vacuum oil skimmer with a stirrer according to claim 7, characterized in that: The conducting column comprises an outer slide cylinder (15) and an inner slide cylinder (16) sleeved in the outer slide cylinder (15); the outer slide cylinder (15) is arranged on an inner wall of the air guiding cavity (14) close to the conducting tube (13); an end of the inner slide cylinder (16) away from the outer slide cylinder (15) is connected to the inner wall of the air guiding cavity (14); and the inner slide cylinder (16) is capable of sliding along the inner wall of the outer slide cylinder (15) and guiding the airflow in the air guiding cavity (14) into the tube body (11) when sliding to a certain position; A return member is sleeved between the outer slide cylinder (15) and the inner slide cylinder (16); when the force bag ring (6) guides the gas to be discharged from the exhaust head, each of the guide tubes (13) guides the gas into the gas guide cavity (14) so ​​that the inner wall of the gas injection sleeve (12) pulls each inner slide cylinder (16) to slide along the corresponding outer slide cylinder (15).

9. The vacuum oil skimmer with a stirrer according to claim 5, characterized in that: The end of the oil collecting tank (3) is provided with a mounting sleeve (31), and a plurality of intermittent airbags (32) are arranged in the mounting sleeve (31). Each intermittent airbag (32) is arranged in a one-to-one correspondence with each of the resetting members (61). The intermittent airbags (32) can expand and contract intermittently. When the intermittent airbags (32) expand, the intermittent airbags (32) press against the side wall of the force bag ring (6) and squeeze the force bag ring (6).

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