Device for collecting floating oil in a water collection well of a power plant and automated system thereof

Abstract

Device for collecting floating oil in a water collection well of a power plant, characterized in that it comprises the following: a mounting bracket (1) arranged to cross both sides of the water collection well opening, wherein a pulling unit (2) is permanently installed on the upper side wall of the mounting bracket (1); and wherein the pulling unit (2) comprises a winding frame (21), a winding roller (22) arranged on the inside of the winding frame (21) and a pulling rope (24) wound on the outside of the winding roller (22); a tensioning unit (3) comprising a sliding frame (31) connected to the winding frame (21), a mounting plate (32) connected to the sliding frame (31), an elastic piece (33) installed on one side of the mounting plate (32) facing the pull rope (24), comprising a first release element (35) installed on a side of the mounting plate (32) facing away from the pull rope (24) and a pressure plate (36) penetrating the mounting plate (32) and connected to the elastic piece (33); a floating oil absorption plate (4) used to absorb oil spills on the surface of the water collection well; a counterweight (5) connected to the running end of the pull rope (24), wherein the counterweight (5) passes through the interior of the floating oil absorption plate (4); wherein the counterweight (5) by its own gravity holds the pull rope (24) in a taut state, and wherein the outer wall of the pull rope (24) abuts the end section of the elastic piece (33) so that the elastic piece (33) is in a compressed, energy-storing state, and wherein the elastic piece (33) can push the pressure plate (36) away from the first release element (35).

Description

TECHNICAL AREA

[0001] The present invention relates to the field of technology for collecting floating oil, in particular a device for collecting floating oil in a water collection well of a power plant and an automated system thereof. STATE OF THE ART

[0002] Water collection wells are used in hydroelectric power plants to collect seepage water, rainwater, and other water flows. The accumulated water is then pumped or channeled away to ensure plant safety. This water mixes with lubricating / hydraulic oil leaking from the equipment, forming oily wastewater. Since oil spills are classified as hazardous waste, it is strictly forbidden to discharge them directly into natural bodies of water. They must undergo specialized physical or chemical treatment to ensure compliance with discharge standards.

[0003] To collect the oil contamination at the water collection well, a floating oil absorption device is currently in use. This device absorbs the oil from the surface of the water collection well. The floating oil absorption machine draws the oil from the surface through an oil absorption plate that floats on the surface of the water collection well and conveys the oil-water mixture via a delivery line to an oil-water separation unit at the well opening. The separated waste oil is collected in oil collection tanks, while the treated wastewater is returned to the water collection well and reprocessed there to achieve absorption of the floating oil within the well.

[0004] Since the surface of the water collection well lies relatively deep below the wellhead, a tow rope is attached to the top of the floating oil absorption plate to facilitate its insertion and maintenance. This rope is connected to the wellhead. When the floating oil absorption plate is inserted into the water collection well, it is connected to the tow rope. Because the water level in the well is determined by the inflow of wastewater, the water level rises during heavy rain, and the floating plate rises with it. The tow rope slackens, hangs down, and partially sinks into the water. Simultaneously, the limited surface area of ​​the water collection well causes the floating plate to drift uncontrollably due to turbulent currents during the rainy season.The underwater portion of the rope can easily wrap around the bracket on the underside of the floating plate. When the rainy season ends and the water level in the well drops, the taut rope creates a pulling force. If the underwater portion of the rope has wrapped around the bracket on the underside of the floating plate, this pulling force can rotate the floating plate 180° or tip it sideways, submerging the absorption area and reducing the efficiency of oil collection.

[0005] Because the liquid level in the water collection well is deep below the well opening and the environment in the power plant is relatively dark, employees cannot directly assess the condition of the floating oil absorption plate with the naked eye, which can lead to a reduction in the machine's work efficiency for absorbing floating oil and an inability to absorb the oil pollution. CONTENT OF THE PRESENT INVENTION

[0006] The technical problem that the present invention aims to solve is therefore that the height of the liquid level in the water collection well changes, causing the pull rope to wrap around the underside of the floating plate, and that the liquid level drops, thereby tightening the rope and lifting the floating plate, which leads to the floating plate tipping over and impairs the efficiency of the absorption of floating oil.

[0007] The aforementioned technical problem is solved by the following technical solution: the present invention provides a device for collecting floating oil in a water collection well of a power plant, comprising: a mounting bracket arranged to cross both sides of the water collection well opening, wherein a pulling unit is fixedly installed on the upper side wall of the mounting bracket; and wherein the pulling unit comprises a winding frame, a winding roller arranged on the inside of the winding frame, and a pulling rope wound on the outside of the winding roller;a tensioning unit comprising a sliding frame connected to the winding frame, a mounting plate connected to the sliding frame, an elastic element installed on one side of the mounting plate facing the pull rope, a first release element installed on a side of the mounting plate facing away from the pull rope, and a pressure plate penetrating the mounting plate and connected to the elastic element; a floating oil absorption plate used to absorb oil spills on the surface of the water collection well; a counterweight connected to the discharge end of the pull rope, the counterweight passing through the interior of the floating oil absorption plate;wherein the counterweight, by its own gravity, holds the pull rope in a taut state, and wherein the outer wall of the pull rope abuts the end section of the elastic piece, so that the elastic piece is in a compressed, energy-storing state, and wherein the elastic piece can push the pressure plate away from the first release element.

[0008] In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, the floating oil absorption plate rises with the increase of the liquid level in the water collection well, the floating oil absorption plate supporting the counterweight, thereby keeping the pull rope in a relaxed state; and the elastic piece releasing the elastic force to cause the pressure plate to compress the first release element.

[0009] In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, the pulling unit comprises a rope guide arranged at the bottom of the winding frame and a drive element for driving the pulling rope for winding; wherein the sliding frames are provided in a number of 2 sets, and wherein the two sets of sliding frames are arranged symmetrically; and wherein the sliding frames move along the guide column of the rope guide synchronously with the winding and unwinding of the pulling rope.In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, a connecting plate is arranged on a side of the sliding frame facing the pull rope; wherein a first through-hole is provided at an end section of the connecting plate facing away from the sliding frame, and wherein the pull rope penetrates the first through-hole and extends to an outside.

[0010] In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, the mounting plate comprises a horizontal section and a vertical section; wherein a second through-hole is provided in the middle of the horizontal section, and wherein the axes of the second through-hole and the first through-hole overlap; and wherein the projection of the first through-hole along the vertical direction lies completely within the boundary of the hole wall of the second through-hole.In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, the vertical section is perpendicular to the horizontal section; wherein a clamping plate is arranged on a side of the vertical section facing the pull rope; and wherein two sides of the elastic piece penetrate the clamping plate and extend to its outside.

[0011] In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, the pressure plate comprises a rod section connected to the elastic part and a press section arranged at an end section of the rod section, wherein the press section is located at an end of the rod section facing away from the elastic part; and wherein the rod section passes through the interior of the vertical section.

[0012] In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, the rod section is provided with an elastic element along its circumferential outer wall; wherein one end of the elastic element abuts against the vertical section and the other end abuts against the elastic piece.

[0013] In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, the counterweight comprises a connecting rod penetrating the top of the filter mesh of the floating oil absorption plate and a weight block arranged at the bottom of the connecting rod; wherein a limiting ring is arranged on the outer circumferential wall of the connecting rod; and wherein a second triggering element is installed inside the top of the filter mesh of the floating oil absorption plate.

[0014] In a preferred embodiment of a device for collecting floating oil in a water collection well of a power plant according to the present invention, the floating oil absorption plate sinks with the liquid level of the water collection well, causing the second trigger element to collide with the weight block.

[0015] The advantageous effect of the present invention consists in the fact that the floating oil absorption plate is lowered to the liquid level of the water collection well by the arranged pulling unit in order to absorb floating oil; when the liquid level of the water collection well rises, the pulling cable is relaxed, and at this time the elastic element drives the pressure plate to strike against the first release element, the first release element issues a signal to initiate the winding of the pulling cable, which ensures that the pulling cable always remains taut to prevent the pulling cable from wrapping around the bottom of the floating oil absorption plate and thus causing the floating oil absorption plate to tip over. BRIEF DESCRIPTION OF THE DRAWING

[0016] To more clearly explain the technical solution in the exemplary embodiments of the present invention, the accompanying drawings of these embodiments are briefly presented below. It is evident that the following drawings relate only to some exemplary embodiments of the present invention and do not represent a limitation of the present invention. Fig. Figure 1 shows a schematic diagram of the assembly structure of a device for collecting floating oil; Fig. Figure 2 shows a schematic diagram of the structure of a train unit; Fig. Figure 3 shows a schematic diagram of the structure of a clamping unit; Fig. Figure 4 shows a schematic diagram of an exploded structure of a clamping unit; Fig. Figure 5 shows a top view of a floating oil absorption plate; Fig. Figure 6 shows an AA half-section according to Fig. 5. DETAILED DESCRIPTION

[0017] In order to enable experts in this field to better understand the present invention, the present invention will be explained in more detail below with reference to a specific embodiment and the accompanying drawings.

[0018] The terms used in the present invention are general terms that are currently widely used in this field, taking into account the functions of the present invention. However, these terms may vary depending on intent, precedents, or new technologies in this field, as interpreted by those skilled in the art. Furthermore, certain terms may be selected by the applicant, in which case their precise meaning will be explained in the detailed description of the present invention. Therefore, the terms used in the description should not be understood as mere designations, but rather as being based on the meaning of the terms and the overall description of the invention.

[0019] See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6, the present embodiment provides a device for collecting floating oil in a water collection well of a power plant, comprising: a mounting bracket 1, which is mainly used to support a pulling unit 2, wherein the mounting bracket 1 is arranged to cross both sides of the water collection well opening, and wherein the pulling unit 2 is fixedly installed on the upper side wall of the mounting bracket 1.

[0020] It should be noted that the mounting bracket 1 comprises symmetrically arranged support columns on both sides and a crossbeam connecting the tops of the two groups of support columns, with the crossbeam providing the necessary positions for installing the pulling unit 2. To reduce the weight of the mounting bracket 1, the beams and columns are made of an aluminum alloy. To facilitate the movement of the mounting bracket 1 within the power plant corridor, rollers are attached to the base of the support columns.

[0021] The pulling unit 2 comprises a winding frame 21, which is attached to the side wall of the crossbeam of the mounting bracket 1 by screws. A winding roller 22 is installed on the inside of the winding frame 21 and is rotatably connected to the winding frame 21. By rotating the winding roller 22, the operator can wind and unwind the pulling rope 24. The pulling rope 24 is wound around the outside of the winding roller 22. To accommodate the different liquid levels in the water collection well, the length of the pulling rope 24 should be sufficient so that its end can touch the bottom of the water collection well.

[0022] The tensioning unit 3 comprises a sliding frame 31 connected to the winding frame 21, a mounting plate 32 connected to the sliding frame 31 and detachably connected to the sliding frame 31, the mounting plate 32 providing a suitable mounting position for the elastic piece 33 to ensure that the elastic piece 33 always abuts the outer wall of the pull rope 24; an elastic piece 33 installed on one side of the mounting plate 32, which is arranged on a side of the mounting plate 32 facing the pull rope 24; a first release element 35 arranged on a side of the mounting plate 32 facing away from the pull rope 24, and a pressure plate 36 penetrating the mounting plate 32 and connected to the elastic piece 33.

[0023] It should be noted that the first triggering element 35 can be a pressure sensor, an indicator light, etc., which provides a unique signal for winding and unwinding the pull rope 24.

[0024] If the first triggering element 35 is preferably a pressure sensor, the drive source of the winding roller 22 assumes an electric motor; when the first triggering element 35 receives a pressure signal, the first triggering element 35 transmits the signal to the control system, the control system receives the signal and issues a command to drive the motor that rotates the winding roller 22, thereby realizing the winding and unwinding of the traction rope 24.

[0025] If the first release element 35 is preferably an indicator light, it can be manually operated by personnel. When the pressure plate 36 abuts the first release element 35, the first release element 35 illuminates to indicate to the personnel that the pull rope 24 is in a relaxed state and that the personnel must manually adjust the length of the pull rope 24.

[0026] The floating oil absorption plate 4 serves to collect oil contaminants on the surface of the water collection well. The floating oil absorption plate 4 comprises a support plate, at least three floats, an oil absorption line arranged on the upper surface of the support plate, and a filter mesh arranged on the outside of the oil absorption line.

[0027] The three floats ensure that the floating oil absorption plate 4 remains stable on the surface of the water collection well; furthermore, the opening of the oil absorption line is always oriented upwards, and adjusting the height of the floats relative to the support plate ensures that the opening of the oil absorption line is approximately one centimeter below the liquid level of the water collection well, thus ensuring that only a small amount of water enters the oil-water separation device and improving the efficiency of oil recovery.

[0028] The counterweight 5 is connected to the trailing end of the pull rope 24, wherein the counterweight 5 passes through the interior of the floating oil absorption plate 4; and wherein the counterweight 5, by its own gravity, holds the pull rope 24 in a taut state, and wherein the outer wall of the pull rope 24 abuts the end section of the elastic piece 33, so that the elastic piece 33 is in a compressed, energy-storing state, and wherein the elastic piece 33 can push the pressure plate 36 away from the first release element 35.

[0029] The floating oil absorption plate 4 floats on the liquid surface of the water collection well. When the pull rope 24 is taut, the counterweight 5 does not touch the floating oil absorption plate 4; that is, the floating oil absorption plate 4 cannot support the counterweight 5. Under the influence of gravity, the counterweight 5 pulls the pull rope 24 by its own weight, thus tautensing the pull rope 24. When the pull rope 24 is taut, the resulting tension pushes the elastic element 33 toward the mounting plate 32, preventing the pressure plate 36 from striking the first release element 35. Conversely, when slack, the pull rope 24 swings freely under the influence of gravity, and its position deviates from its vertical state.Simultaneously, the elastic piece 33 is no longer compressed by the tension of the pull rope 24; the elastic piece 33 returns to its elastic deformation and moves away from the mounting plate 32. The movement of the elastic piece 33 can cause the pressure plate 36 to compress the first release element 35. The first release element 35 is triggered when the pull rope 24 is in a relaxed state, in order to signal to the personnel that the pull rope 24 is in a relaxed state so that the personnel can take appropriate action.

[0030] See Fig. 1, Fig. 2 to Fig. 3, in an optional embodiment, the floating oil absorption plate 4 rises with the increase in the liquid level in the water collection well, wherein the floating oil absorption plate 5 supports the counterweight 5, thereby keeping the pull rope 24 in a relaxed state; and wherein the elastic piece 33 releases the elastic force to cause the pressure plate 36 to compress the first release element 35.

[0031] In the present embodiment, the amount of water escaping from the power plant increases during the rainy season, thereby increasing the amount of water entering the water collection well, which in turn leads to a rise in the liquid level in the water collection well. If the length of the pull rope 24 remains unchanged at this time, a portion of the pull rope 24 comes into contact with the liquid level in the water collection well as the liquid level rises and sinks into the water. Due to the influence of the water entering the water collection well, the floating oil absorption plate 4 blows irregularly inside the water collection well. This causes the submerged pull rope 24 to become entangled with the floating oil absorption plate 4.When the liquid level in the water collection well drops, the pull rope 24 pulls the floating oil absorption plate 4 upwards, causing it to tip over and the oil absorption line opening of the floating oil absorption plate 4 to be submerged and no longer able to absorb oil contamination on the surface.

[0032] To overcome the aforementioned problem, the counterweight 5, connected to the end of the pull rope 24, is lifted by the floating oil absorption plate 4 when the liquid level in the water collection well rises, so that the pull rope 24 is not affected by the gravity of the counterweight 5 and is in a relaxed state. In this state, the tension of the pull rope 24 decreases, so that the movement of the elastic section 33 is no longer restricted. The elastic section 33 regains its elasticity and pushes the pressure plate 36 against the first release element 35. The first release element 35 issues a signal so that the personnel can adjust the length of the unwound pull rope 24.

[0033] It should be noted that the pull rope 24 can be an existing nylon rope and that the cross-section of the pull rope 24 can be round or flat and elongated or have another structure; the pull rope 24 is mainly used for pulling.

[0034] See Fig. 2 and Fig. 3, the present embodiment provides a device for collecting floating oil in a water collection well of a power plant, comprising a pulling unit 2, which includes a rope guide 23 arranged on the bottom of the winding frame 21 and a drive element 25 for driving the pulling rope 24 for winding.

[0035] With the aid of the rope guide 23, the traction rope 24 can be wound in layers along the axis of the winding roller 22 on the outside of the circumference of the winding roller 22 to ensure that it does not become tangled when winding and unwinding the traction rope 24.

[0036] In the present embodiment, the drive element 25 comprises an electric motor, a signal receiver for receiving signals from the first triggering element 35, a signal processor communicating with the signal receiver, and a control system that, after processing the signals, controls the start and stop of the control motor.

[0037] In particular, by receiving the signal from the first triggering element 35 and transmitting it to the drive element 25, the winding roller 22 can be driven to rotate by the drive element 25, and the rotation of the winding roller 22 drives the pull rope 24 to wind, thereby allowing the length of the pull rope 24 falling into the well to be adjusted.

[0038] Furthermore, the sliding frames 31 are provided in a number of 2 sets, wherein the two sets of sliding frames 31 are arranged symmetrically; and wherein the sliding frames 31 move along the guide column of the rope guide 23 synchronously with the winding and unwinding of the haul rope 24.

[0039] It should be noted that a pull rope 24 is arranged in the middle between the two sets of sliding frames 31, which moves along the direction of the long axis of the rope guide 23 during winding. The movement of the pull rope 24 simultaneously causes a synchronous movement of the sliding frames 31, thus ensuring that the mounting plate 32 is always positioned opposite the pull rope 24.

[0040] Furthermore, a connecting plate 37 is arranged on a side of the sliding frame 31 facing the pull rope 24; wherein a first through-hole 371 is provided at an end section of the connecting plate 37 facing away from the sliding frame 31, and wherein the pull rope 24 penetrates the first through-hole 371 and extends to an outside.

[0041] It should be noted that the connecting plate 37 is stamped from a thin sheet of metal and exhibits a certain degree of elastic deformability. The connecting plate 37 is firmly connected to the sliding frame 31.

[0042] The pull rope 24 exhibits a certain degree of flexibility. When the pull rope 24 is moved and displaces the sliding frame 31, a certain deformation occurs, which leads to misalignment when the pull rope 24 is wound up, so that the pull rope 24 cannot be wound evenly along its original path.

[0043] When the pull rope 24 penetrates the first through-hole 371, its movement pushes the connecting plate 37 to one side, thereby pulling the connecting plate 37 on the other side into a stretched state. The stretched connecting plate 37 tends to return to its original state, drawing the sliding frame 31 connected to it closer to the pull rope 24. This allows the pull rope 24 to be positioned in the first through-hole 371, ensuring that the sliding frame 31 moves smoothly along the guide rod of the rope guide 23.

[0044] See Fig. 1 and Fig. 4, in an embodiment provided by the present application, the mounting plate 32 comprises a horizontal section 321 and a vertical section 322; wherein a second through-hole 3211 is provided in the middle of the horizontal section 321, and wherein the axes of the second through-hole 3211 and the first through-hole 371 overlap; and wherein the projection of the first through-hole 371 along the vertical direction lies completely within the boundary of the hole wall of the second through-hole 3211.

[0045] The mounting plate 32 is positioned between the ends of the two groups of connecting plates 37, wherein the surfaces of the mounting plates 32 that abut the end section of the connecting plate 37 are each provided with wedge-shaped recesses, and wherein the surfaces of the connecting plates 37 corresponding to the mounting plate 32 are provided with projections, and wherein the projections cooperate with the wedge-shaped recesses to mount and fasten the connecting plates 37.

[0046] The pull rope 24 penetrates the first through hole 371 and simultaneously penetrates the second through hole 3211, the diameter of the second through hole 3211 being larger than the diameter of the first through hole 371 to ensure that the mounting plate 32 does not come into direct contact with the pull rope 24, thus preventing misalignment of the connecting plate 37.

[0047] The connecting plate 37 clamps the mounting plate 32 securely to ensure that the mounting plate 32 can move synchronously with the sliding frame 31. To reduce the force required to move the sliding frame 31, balls are attached to the inner wall of the sliding frame 31, enabling smoother movement of the sliding frame 31.

[0048] See Fig. 1 and Fig. 4, in an embodiment provided by the present application, the vertical section 322 is perpendicular to the horizontal section 321; wherein a clamping plate 3221 is arranged on a side of the vertical section 322 facing the traction cable 24; and wherein two sides of the elastic piece 33 penetrate the clamping plate 3221 and extend to its outside.

[0049] It should be noted that a rear clamping plate 3221 is attached to the surface of the vertical section 322 and is firmly connected to the vertical section 322 by welding, the vertical section 322 having an inverted —shaped structure; and wherein both ends of the elastic piece 33 penetrate a gap formed by the clamping plate 3221 and the vertical section 322 and extend outwards.

[0050] When the elastic piece 33 is compressed, its two ends move along the boundary path of the clamping plate 3221, such that the two ends of the elastic piece 33 move along the direction of the long axis of the vertical section 322. The boundary of the clamping plate 3221 ensures that the elastic piece 33 deforms in the direction of the vertical section 322 when an external force is applied.

[0051] Furthermore, the pressure plate 36 comprises a rod section 361 connected to the elastic piece 33 and a press section 362 arranged at an end section of the rod section 361, wherein the press section 362 is located at an end of the rod section 361 facing away from the elastic piece 33; and wherein the rod section 361 passes through the interior of the vertical section 322.

[0052] It should be noted that the rod section 361 has an internally hollow rod-shaped structure and the wall thickness of the rod section 361 corresponds to the wall thickness of the elastic piece 33; the rod section 361 is relatively light to ensure that the elastic piece 33 can push the rod section 361 to move when deformed.

[0053] The deformation of the elastic piece 33 causes a movement of the rod section 361, whereby the rod section 361, which is arranged at an end section of the rod section 361, can approach or move away from the first release element 35 in order to determine, by means of the open or closed state of the first release element 35, whether the drive element 25 is activated for winding and unwinding the pull rope 24.

[0054] To increase the elastic force of the elastic piece 33 during its return to its original position, the force required for the return of the elastic piece 33 can be increased by adding an elastic element 38. The elastic element 38 is attached to the outside of the rod section 361. When the elastic piece 33 is compressed, the elastic element 38 is also compressed. When the external force is removed, the elastic piece 33 and the elastic element 38 return to their original position simultaneously, thereby increasing the force required to bend the pull rope 24.

[0055] During use, the floating oil absorption plate 4 moves upwards as the liquid level in the water collection well rises, supporting the counterweight 5. This relieves the pull rope 24 of its slack position, allowing it to change from a tensioned to a relaxed state. With the pull rope 24 relaxed, the force generated by its tension disappears, causing the elastic element 33 to deform. This elastic element then drives the rod section 361, causing the end face of the press section 362 to abut the first release element 35. The first release element 35 then issues a pressure signal, which is transmitted to the drive element 25. The drive element 25 then rotates the winding roller 22, winding the pull rope 24 upwards by a specified distance.When the pull rope 24 separates the counterweight 5 from the floating oil absorption plate 4, the pull rope 24 is under tension due to the weight of the counterweight 5. The resulting tension force at the side wall of the pull rope 24 acts against the elastic section 33 and compresses it. As the elastic section 33 is compressed, it pushes the press section 362 away from the first release element 35. If the first release element 35 is not released, the drive element 25 stops and fixes the winding length of the pull rope 24.

[0056] See Fig. 1, Fig. 3 and Fig.4, in an embodiment provided by the present application, the counterweight 5 comprises a connecting rod 51 penetrating the top of the filter mesh of the floating oil absorption plate 4, and a weight block 52 arranged at the bottom of the connecting rod 51; wherein a limiting ring 511 is arranged on the outer circumferential wall of the connecting rod 51; and wherein a second release element 6 is installed inside the top of the filter mesh of the floating oil absorption plate 4.

[0057] It should be noted that the counterweight 5 includes a connecting rod 51 that penetrates the top of the filter mesh on the top of the floating oil absorption plate 4 and can slide up and down along the through-hole on the top of the floating oil absorption plate 4. The limiting ring 511 is attached to the outside of the connecting rod 51, and the diameter of the limiting ring 511 is larger than that of the through-hole on the top of the floating oil absorption plate 4. When the limiting ring 511 abuts the top of the floating oil absorption plate 4, the connecting rod 51 cannot move further downwards.

[0058] In particular, the second triggering element 6 is preferably a pressure sensor, the second triggering element 6 is attached to the top of the inside of the floating oil absorption plate 4, and the counterweight 52 is arranged inside the floating oil absorption plate 4.

[0059] In the present embodiment, the problem is solved that when the liquid level of the water collection well falls, the oil absorption line opening of the floating oil absorption plate 4 is exposed above the liquid level; when the liquid level in the water collection well falls, the height of the floating oil absorption plate 4 also falls, causing the counterweight 52 to approach the second release element 6. When the counterweight 52 strikes the second release element 6, the second release element 6 issues a pressure signal and transmits it to the drive element 25. At this point, the drive element 25 is activated, which drives the winding roller 22 to rotate, thereby unwinding the pull rope 24 a certain distance into the interior of the water collection well. When the floating oil absorption plate 4 touches the liquid level of the water collection well, it is fixed in its position by the buoyancy of the water.By further unwinding the pull rope 24, the counterweight 52 and the second release element 6 are separated from each other, the drive element 25 no longer receives a pressure signal from the second release element 6 and stops, so that the pull rope 24 is not unwound further downwards.

[0060] Finally, it should be noted that the methods and devices described in detail above are only exemplary embodiments of the implementation and that experts in this field may modify these exemplary embodiments in various ways, as long as they do not deviate from the scope of the present invention.

[0061] It should be noted that the foregoing embodiments serve only to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention is further explained in connection with preferred embodiments, the person skilled in the art should understand that they may modify or equivalently replace the technical solutions of the present invention without departing from the spirit and scope of the technical solution of the present invention, and such modifications or equivalent replacements should be considered to be within the scope of the claims of the present invention.

Claims

[1] Device for collecting floating oil in a water collection well of a power plant, characterized by that it includes the following: a mounting bracket (1) arranged to cross both sides of the water collection well opening, wherein a pulling unit (2) is permanently installed on the upper side wall of the mounting bracket (1); and wherein the pulling unit (2) comprises a winding frame (21), a winding roller (22) arranged on the inside of the winding frame (21) and a pulling rope (24) wound on the outside of the winding roller (22); a tensioning unit (3) comprising a sliding frame (31) connected to the winding frame (21), a mounting plate (32) connected to the sliding frame (31), an elastic piece (33) installed on one side of the mounting plate (32) facing the pull rope (24), comprising a first release element (35) installed on a side of the mounting plate (32) facing away from the pull rope (24) and a pressure plate (36) penetrating the mounting plate (32) and connected to the elastic piece (33); a floating oil absorption plate (4) used to absorb oil spills on the surface of the water collection well; a counterweight (5) connected to the running end of the pull rope (24), wherein the counterweight (5) passes through the interior of the floating oil absorption plate (4); wherein the counterweight (5) by its own gravity holds the pull rope (24) in a taut state, and wherein the outer wall of the pull rope (24) abuts the end section of the elastic piece (33) so that the elastic piece (33) is in a compressed, energy-storing state, and wherein the elastic piece (33) can push the pressure plate (36) away from the first release element (35). [2] Device for collecting floating oil in a water collection well of a power plant according to claim 1, characterized by , that the floating oil absorption plate (4) rises with the increase in the liquid level in the water collection well, the floating oil absorption plate (4) supporting the counterweight (5), thereby keeping the pull rope (24) in a relaxed state; and wherein the elastic piece (33) releases the elastic force to cause the pressure plate (36) to compress the first release element (35). [3] Device for collecting floating oil in a water collection well of a power plant according to claim 2, characterized by , that the pulling unit (2) further comprises a rope guide (23) arranged on the bottom of the winding frame (21) and a drive element (25) for driving the pulling rope (24) for winding; wherein the sliding frames (31) are provided in a number of 2 sets, and wherein the two sets of sliding frames (31) are arranged symmetrically; and wherein the sliding frame (31) moves along the guide column of the rope guide (23) synchronously with the winding and unwinding of the haul rope (24). [4] Device for collecting floating oil in a water collection well of a power plant according to claim 3, characterized by , that a connecting plate (37) is arranged on a side of the sliding frame (31) facing the pull rope (24); wherein a first through hole (371) is provided at an end section of the connecting plate (37) facing away from the sliding frame (31), and wherein the pull rope (24) penetrates the first through hole (371) and extends to an outside. [5] Device for collecting floating oil in a water collection well of a power plant according to claim 4, characterized by , that the mounting plate (32) comprises a horizontal section (321) and a vertical section (322); wherein a second through-hole (3211) is provided in the middle of the horizontal section (321), and wherein the axes of the second through-hole (3211) and the first through-hole (371) overlap; and wherein the projection of the first through hole (371) along the vertical direction lies completely within the boundary of the hole wall of the second through hole (3211). [6] Device for collecting floating oil in a water collection well of a power plant according to claim 5, characterized by , that the vertical section (322) is perpendicular to the horizontal section (321); wherein a clamping plate (3221) is arranged on a side of the vertical section (322) facing the traction cable (24); and wherein two sides of the elastic piece (33) penetrate the clamping plate (3221) and extend to its outside. [7] Device for collecting floating oil in a water collection well of a power plant according to claim 6, characterized by , that the pressure plate (36) comprises a rod section (361) connected to the elastic piece (33) and a press section (362) arranged at an end section of the rod section (361), wherein the press section (362) is located at an end of the rod section (361) facing away from the elastic piece (33); and wherein the rod section (361) passes through the interior of the vertical section (322). [8] Device for collecting floating oil in a water collection well of a power plant according to claim 7, characterized by , that the rod section (361) is provided with an elastic element (38) along its outer circumferential wall; wherein one end of the elastic element (38) abuts the vertical section (322) and the other end abuts the elastic piece (33). [9] Device for collecting floating oil in a water collection well of a power plant according to claim 8, characterized by , that the counterweight (5) comprises a connecting rod (51) which penetrates the top of the filter mesh of the floating oil absorption plate (4) and a weight block (52) arranged at the bottom of the connecting rod (51); wherein a limiting ring (511) is arranged on the outer circumferential wall of the connecting rod (51); and wherein a second triggering element (6) is installed inside the top of the filter mesh of the floating oil absorption plate (4). [10] Device for collecting floating oil in a water collection well of a power plant according to claim 9, characterized by , that the floating oil absorption plate (4) sings with the liquid level of the water collection well, causing the second trigger element (6) to collide with the weight block (52).

Images