A skid-mounted environmental protection oil unloading system

Abstract

The present application relates to the pry dress gas station field, specifically is related to a pry dress environmental protection oil unloading system, including by control room and tank body containing warehouse composition pry dress gas station ontology, still including water supply assembly, spray cooling assembly and temperature detector, water supply assembly includes water tank, pressurizing pump and intermittent drive mechanism, water tank is equipped with water inlet, water outlet and backflow port, intermittent drive mechanism includes driver, ejector pin, proximity switch and control mechanism, control mechanism includes water tank, horizontal pipe, piston and telescopic rod, water tank is equipped with water inlet, first drain and second drain, telescopic rod includes movable rod, spray cooling assembly is intermittently sprayed to oil tank through intermittent drive mechanism, the work of pressurizing pump is intermittently interrupted through water power drive, and the frequency of stepping motor is replaced by this mode, and it is efficient and environmental protection.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of skid-mounted refueling stations, in particular to a skid-mounted environmentally-friendly oil unloading system. BACKGROUND

[0002] The full name of the skid-mounted refueling station is a barrier explosion-proof skid-mounted refueling device. It is a ground refueling device that integrates a refueling machine, a barrier explosion-proof double-layer oil storage tank, a barrier explosion-proof oil gas recovery system, and an automatic fire extinguisher. It has the appearance of a large container and can be lifted and moved. It has all the functions of a fixed refueling station. The barrier explosion-proof oil storage tank of the barrier explosion-proof skid-mounted refueling station has been technically modified. The barrier explosion-proof technical modification is to fill a barrier explosion-proof material (a barrier explosion-proof material is a mesh structure material made of special aluminum alloy) into an oil storage tank containing flammable and explosive liquids at a certain density. When encountering open flames, static electricity, impact, lightning, gunshots, welding, and accidental violent impact accidents, no explosion accidents will occur. It is widely used in places where vehicles are concentrated, such as ports, terminals, airports, logistics parks, industrial parks, passenger stations, nuclear power stations, large construction sites, and internal refueling stations of enterprises.

[0003] The existing Chinese patent with publication number CN114194643A discloses a barrier explosion-proof skid-mounted refueling device, but still has the following defects:

[0004] Firstly, its explosion-proof principle is to detect whether the tank body has expanded by a plurality of pressure sensors attached to the surface of the tank body. However, since the skid-mounted refueling station is mobile, tank body shaking during movement or severe shaking caused by earthquakes will affect the pressure sensor. At this time, it is not due to the expansion of the tank body itself, but the external factors affecting the value detected by the pressure sensor.

[0005] Secondly, the device can only prevent the explosion of the tank body that has already expanded. At this time, since the tank body has already expanded, the risk of explosion increases and it is meaningless to prevent it. Prevention should be carried out before the tank body expands.

[0006] The Chinese patent with publication number CN217396490U discloses a new energy-saving skid-mounted refueling station. This device mainly adds a solar panel to the structure of a traditional skid-mounted refueling station to absorb solar energy and convert it into electrical energy for the electrical equipment of the skid-mounted refueling station, thereby achieving energy saving and environmental protection. However, this method is limited by the size, efficiency, and weather of the solar panel, and is not stable enough. Moreover, the practical effect is not good.

[0007] The Chinese patent with the publication number CN206384828U discloses a barrier explosion-proof skid-mounted refueling tank body. The inside of the refueling tank body is divided into a left tank body part, a middle tank body part and a right tank body part by partitions. The left tank body part and the right tank body part are provided with communicating air vents at the top, and the communicating air vents are in communication with the upper part of the middle tank body part and then in communication with a breather valve. The top of the middle tank body part is provided with a fire cap and a breather valve. The bottoms of the two partitions are provided with oil passages, and the oil passages are in communication with the bottoms of the left tank body part, the middle tank body part and the right tank body part. The bottom of the middle tank body part is provided with an oil inlet. The improvement of the device is limited to the refueling tank body. Two partitions are added to the tank body, so that the tank body is more solid. The oil tank cooling problem is not involved.

[0008] The Chinese patent with the publication number CN216105995U discloses a smart management and control safety oil unloading system for gas stations. The system sets an oil unloading safety interlocking integrated machine in an oil unloading tank. The tank key is sensed by a control cabinet to perceive the tank stabilizing process, the static electricity level and whether oil is overflowing. The oil unloading process can be controlled by controlling the battery valve pipe of the oil unloading pipe. The whole oil unloading process is controlled by the oil unloading safety interlocking integrated machine and displayed on a display screen. Information can be transmitted to a server in the gas station, so that personnel in the gas station can know the oil unloading situation. The whole oil unloading process and process can be seen. The problem solved by the system is focused on information collection and human-computer interaction, and not on cooling the surface of the oil tank before the oil tank expands to prevent the oil tank from expanding excessively due to heating and minimize the risk of explosion. The problem related to energy saving and environmental protection is not involved.

[0009] Therefore, in view of the above problems, it is necessary to provide a skid-mounted environment-friendly oil unloading system. SUMMARY

[0010] Therefore, in view of the above problems, it is necessary to provide a skid-mounted environment-friendly oil unloading system.

[0011] To solve the problems of the prior art, the technical scheme adopted by the present application is as follows:

[0012] The utility model provides a pry dress environmental protection oil unloading system, including the fixed oil tank in the tank containing warehouse, its characterized in be further including water supply assembly, spray cooling assembly and temperature detector, temperature detector is used to detect the temperature in the tank containing warehouse, and spray cooling assembly is used to spray water to oil tank and carries out cooling, water supply assembly includes no.

[0013] Further, the intermittent driving mechanism further comprises a top pin corresponding to the proximity switch, and the control assembly comprises a horizontal pipe, a piston and an extension rod; the proximity switch is slidingly connected above the second water tank, so that the proximity switch can slide in the horizontal direction; the driver is used to drive the top pin to top the proximity switch, so as to start the pressure pump; the horizontal pipe is connected with the first drain port; the piston is slidingly arranged in the horizontal pipe; the extension rod comprises a movable rod capable of extending and rebounding to the original position along the sliding direction of the proximity switch; the piston is driven to displace by the water pressure in the horizontal pipe, and in turn drives the proximity switch to slide reversely and separate from the top pin through the movable rod; the backflow port is connected with the second drain port through an electromagnetic valve.

[0014] Further, the first water tank is provided with a water inlet, a water outlet and a backflow port; the second water tank is located above the first water tank; the first drain port is higher than the second drain port; the water outlet is connected with the water inlet end of the pressure pump; and the backflow port is connected with the second drain port through an electromagnetic valve.

[0015] Further, the water inlet is arranged at the bottom of the second water tank; the first drain port is arranged close to the top of the second water tank; and the second drain port is arranged close to the bottom of the second water tank.

[0016] Further, the control room is fixedly provided with a double-layer control cabinet and a containing cabinet, the first water tank is fixedly arranged in the containing cabinet, the intermittent driving mechanism is arranged on the upper layer of the double-layer control cabinet, and the pressurizing pump is fixedly arranged on the lower layer of the double-layer control cabinet.

[0017] Further, the top of the second water tank is fixedly provided with a horizontal rectangular mounting seat beside the motor base, a horizontal linear slide rail is fixedly arranged on the rectangular mounting seat, a sliding plate is arranged on the linear slide rail, the proximity switch is fixedly connected with the sliding plate, the inside of the rectangular mounting seat is hollow, the horizontal pipe is fixedly arranged in the inside of the rectangular mounting seat, the axial direction of the horizontal pipe is consistent with the axial direction of the threaded rod, one end of the horizontal pipe is connected with the second water tank through the first connecting pipe, the other end of the horizontal pipe is coaxially formed with a first blocking ring, the cap end of the piston faces the first connecting pipe, the rod part of the piston horizontally penetrates through the first blocking ring and extends out of the horizontal pipe, a connecting rod is fixedly connected with the extending end of the rod part of the piston, and the connecting rod is connected with the movable rod through the first vertical rod.

[0018] Further, the end of the rectangular mounting seat away from the motor base is formed with a vertical plate, the telescopic rod further comprises a fixed sleeve and a first spring, the fixed sleeve is arranged on the vertical plate, the axial direction of the fixed sleeve is consistent with the axial direction of the horizontal pipe, the movable rod is slidably arranged in the fixed sleeve, the first spring is arranged in the fixed sleeve, and the two ends of the first spring are respectively in contact with the movable rod and the vertical plate, one end of the movable rod is located in the fixed sleeve, and the other end of the movable rod extends horizontally to the proximity switch, the upper end of the first vertical rod is fixedly connected with the end of the movable rod located in the fixed sleeve, a strip-shaped containing groove is formed in the fixed sleeve to avoid horizontal displacement of the first vertical rod, the other end of the movable rod is fixedly provided with a second vertical rod vertically downward, one end of the sliding plate close to the second vertical rod is fixedly provided with a horizontal strip-shaped plate, a strip-shaped sliding groove with a length direction consistent with the axial direction of the movable rod is formed in the strip-shaped plate, and the lower end of the second vertical rod is inserted into the strip-shaped sliding groove.

[0019] Further, the connecting rod and the slide plate are provided with a retreat-stop mechanism, and the connecting rod and the first vertical rod are provided with a tolerant displacement mechanism, the retreat-stop mechanism comprises a horizontal slide rod, a vertical slide rod and a vertical pipe sleeve, the vertical pipe sleeve is fixedly arranged at the top of the rectangular mounting seat, the upper end of the vertical pipe sleeve is of an open structure, the lower end is of a closed structure, the vertical slide rod is slidably arranged in the vertical pipe sleeve, the upper end of the vertical slide rod is provided with a first inclined wedge block capable of being elastically pressed downward, the bottom of the slide plate is formed with a second inclined wedge block, the vertical part of the first inclined wedge block is in abutment with the vertical part of the second inclined wedge block, one end of the horizontal slide rod is fixedly connected with the end of the connecting rod close to the piston, the other end of the horizontal slide rod passes through the lower end of the vertical pipe sleeve in a horizontal manner and is in inclined wedge cooperation with the lower end of the vertical slide rod, the tolerant displacement mechanism comprises a second spring and a block, the end of the connecting rod away from the piston is provided with a strip-shaped recess with the length direction consistent with the axial direction of the connecting rod, the block is located in the end of the strip-shaped recess away from the piston and is fixedly connected with the lower end of the first vertical rod, the second spring is arranged in the strip-shaped recess, and the two ends of the second spring are respectively in abutment with the block and the inner wall of the strip-shaped recess.

[0020] Further, the vertical slide rod comprises a vertical pipe and a solid column, the solid column is vertically and slidably arranged in the vertical pipe sleeve, the lower end of the solid column is in inclined wedge cooperation with one end of the horizontal slide rod, the lower end of the vertical pipe is of an open structure and is fixedly connected with the upper end of the solid column in a coaxial manner, the upper end of the vertical pipe is coaxially formed with a second blocking ring, the lower end of the first inclined wedge block is formed with a slide pin passing through the second blocking ring in a coaxial downward manner, the lower end of the slide pin is coaxially formed with a circular slide block slidably arranged in the vertical pipe, and the vertical pipe is provided with a third spring vertically arranged therein, and the upper and lower ends of the third spring are respectively in abutment with the circular slide block and the solid column.

[0021] Further, the spray cooling assembly comprises a plurality of water pipes arranged in parallel along the length direction of the oil tank and connected end to end, each water pipe is connected with a rotating spray head facing the oil tank, the water outlet end of the pressurizing pump is connected with a horizontal pipe, the water pipes close to the control room are connected with the pipe through a plurality of second connecting pipes, the second water tank is provided with a water inlet, the middle part of the pipe is connected with the water inlet through a first hose, and a one-way valve is arranged at the connection position of the first hose and the water inlet.

[0022] Further, the second water outlet is connected with the backflow opening through a second hose, and the electromagnetic valve is arranged at the connection position of the second hose and the backflow opening.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] Firstly, the device can cool the surface of the oil tank before the oil tank expands through the spray cooling assembly and the temperature detector, so that the risk of explosion is minimized.

[0025] Secondly, the spraying cooling assembly of the device sprays water on the oil tank intermittently through the intermittent driving mechanism, preventing the oil tank from cracking due to rapid cold and hot alternation and causing safety hazards, and the several rotating nozzles in the spraying cooling assembly change the water flow into water mist to spray on the surface of the oil tank, so as to take away the temperature of the oil tank through the evaporation of the water mist;

[0026] Thirdly, the regulating mechanism of the device is driven in reverse by water to displace the proximity switch, so that the proximity switch is separated from the driver (or the top pin), thereby interrupting the work of the pressurizing pump, and replacing the frequent starting of the stepping motor in this way, which is efficient, environmentally friendly, and further prolongs the service life of the stepping motor. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective structural schematic diagram of the embodiment;

[0028] Figure 2 is a top view of the embodiment;

[0029] Figure 3 is Figure 2 is a sectional view along the line A-A;

[0030] Figure 4 is Figure 3 is a partial enlarged schematic diagram indicated by A1 in FIG. 1;

[0031] Figure 5 is Figure 3 is a partial enlarged schematic diagram indicated by A2 in FIG. 1;

[0032] Figure 6 is Figure 2 is a sectional view along the line B-B;

[0033] Figure 7 is a top view of the containing cabinet and the double-layer control cabinet of the embodiment;

[0034] Figure 8 is Figure 7 is a sectional view along the line C-C;

[0035] Figure 9 is Figure 8 is a partial enlarged schematic diagram indicated by A3 in FIG. 1;

[0036] Figure 10 is Figure 8 is a partial enlarged schematic diagram indicated by A4 in FIG. 1;

[0037] Figure 11 is Figure 10 is a partial enlarged schematic diagram indicated by A5 in FIG. 1;

[0038] Figure 12 is Figure 10The enlarged view of the area indicated by A6 in the middle;

[0039] Figure 13 This is a three-dimensional structural diagram of the driver in an embodiment;

[0040] Figure 14 This is a top view of the control mechanism in the embodiment;

[0041] Figure 15 yes Figure 14 Sectional view along line DD;

[0042] Figure 16 yes Figure 15 The enlarged view of the area indicated by A7 in the diagram;

[0043] Figure 17 yes Figure 15 A magnified view of the area indicated by A8 in the diagram;

[0044] Figure 18 yes Figure 15 The enlarged schematic diagram of the part indicated by A9 in the middle.

[0045] The diagram is labeled as follows: 1. Control room; 2. Tank housing; 3. Skid-mounted gas station body; 4. Oil tank; 5. Hose No. 1; 6. Check valve; 7. Temperature detector; 8. Water tank No. 1; 9. Booster pump; 10. Inlet; 11. Outlet; 12. Return port; 13. Hose No. 2; 14. Top pin; 15. Proximity switch; 16. Pipeline; 17. Water tank No. 2; 18. Horizontal pipe; 19. Pipe; 20. Inlet; 21. Drain No. 1; 22. Drain No. 2; 23. Movable rod; 24. Solenoid valve; 25. Double-layer control cabinet; 26. Housing cabinet; 27. Motor base; 28. Stepper motor; 29. ​​Threaded rod; 30. Threaded sleeve; 31. Bracket; 32. Limit rod. 33. Sliding sleeve; 34. Rectangular mounting base; 35. Slide plate; 36. Connecting pipe No. 1; 37. Retaining ring No. 1; 38. Connecting rod; 39. Vertical rod No. 1; 40. Vertical plate; 41. Fixing sleeve; 42. Spring No. 1; 43. Strip-shaped receiving groove; 44. Vertical rod No. 2; 45. Strip plate; 46. Strip-shaped sliding groove; 47. Horizontal sliding rod; 48. Vertical sliding rod; 49. Vertical pipe sleeve; 50. Wedge No. 1; 51. Wedge No. 2; 52. Spring No. 2; 53. Abutment block; 54. Strip-shaped recess; 55. Vertical pipe; 56. Solid column; 57. Retaining ring No. 2; 58. Sliding pin; 59. Circular slider; 60. Spring No. 3; 61. Water pipe; 62. Rotating nozzle; 63. Connecting pipe No. 2; Detailed Implementation

[0046] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0047] Reference Figures 1 to 18 The environmental protection oil unloading system shown in the figure comprises a tank body containing bin (2) fixed with an oil tank (4), further comprises a water supply assembly, a spray cooling assembly and a temperature detector 7; the temperature detector 7 is used for detecting the temperature in the tank body containing bin 2, and the spray cooling assembly is used for spraying water in the form of mist to the oil tank 4 for cooling; the water supply assembly comprises a first water tank 8, a pressure pump 9 and an intermittent driving mechanism for intermittently starting and stopping the pressure pump 9; the intermittent driving mechanism comprises a driver, a proximity switch 15 and a control mechanism; the driver is used for first approaching the proximity switch 15 to start the pressure pump 9; the control mechanism comprises a second water tank 17 and a control assembly, a part of water in the first water tank 8 is pressurized by the pressure pump 9 and enters the spray cooling assembly, and a part is unidirectionally discharged into the second water tank 17; the second water tank 17 is provided with a first drain port 21 connected with the control assembly and a second drain port 22 used for backflow to the first water tank 8; the liquid level in the second water tank 17 rises and falls to make the control mechanism generate different water pressures, so as to drive the proximity switch 15 to move away from or approach the driver.

[0048] In further embodiments, the intermittent driving mechanism further comprises a top pin 14 corresponding to the proximity switch 15; the control mechanism comprises a horizontal pipe 18, a piston 19 and an extension rod; the proximity switch 15 is slidingly connected above the second water tank 17, so that the proximity switch 15 can slide in the horizontal direction; the driver is used for driving the top pin 14 to top the proximity switch 15, so as to start the pressure pump 9; the horizontal pipe 18 is connected with the first drain port 21, the piston 19 is slidingly arranged in the horizontal pipe 18, and the extension rod comprises a movable rod 23 capable of extending and rebounding in the sliding direction of the proximity switch 15; the piston 19 is driven to displace by the water pressure in the horizontal pipe 18, and drives the proximity switch 15 to slide reversely and separate from the top pin 14 through the movable rod 23; the backflow port 12 is connected with the second drain port 22 through an electromagnetic valve 24.

[0049] In further embodiments, the first water tank 8 is provided with a water inlet port 10, a water outlet port 11 and a backflow port 12; the second water tank 17 is located above the first water tank 8, the first drain port 21 is higher than the second drain port 22, the water outlet port 11 is connected with the water inlet end of the pressure pump 9, and the backflow port 12 is connected with the second drain port 22 through the electromagnetic valve 24.

[0050] In further embodiments, the water inlet port (20) is arranged at the bottom of the second water tank 17; the first drain port 21 is arranged close to the top of the second water tank 17, and the second drain port 22 is arranged close to the bottom of the second water tank 17.

[0051] In another embodiment, a skid-mounted environmental oil unloading system comprises a skid-mounted gas station body 3 composed of a control room 1 and a tank containing bin 2, an oil tank 4 fixedly arranged in the tank containing bin 2, a water supply assembly arranged in the control room 1, a spray cooling assembly arranged in the tank containing bin 2, and a temperature detector 7 arranged in the tank containing bin 2, the temperature detector 7 being used to detect the temperature in the tank containing bin 2, the spray cooling assembly being used to spray water in the form of mist to cool the oil tank 4, the water supply assembly comprising a first water tank 8, a pressurizing pump 9, and an intermittent driving mechanism used to intermittently start and stop the pressurizing pump 9, the first water tank 8 being provided with a water inlet 10, a water outlet 11, and a backflow port 12, the intermittent driving mechanism comprising a driver, a top pin 14, a proximity switch 15, and a control mechanism, the control mechanism comprising a second water tank 17, a horizontal pipe 18, a piston 19, and an extension rod, the second water tank 17 being arranged above the first water tank 8, the second water tank 17 being provided with a water inlet 20 arranged at the bottom of the second water tank 17, a first water outlet 21 arranged close to the top of the second water tank 17, and a second water outlet 22 arranged close to the bottom of the second water tank 17, the proximity switch 15 being slidably connected above the second water tank 17, so that the proximity switch 15 can slide in the horizontal direction, the driver being used to drive the top pin 14 to move towards the proximity switch 15, so as to start the pressurizing pump 9, the water outlet 11 being connected to the water inlet of the pressurizing pump 9, a part of the water discharged from the water outlet of the pressurizing pump 9 being discharged to the spray cooling assembly, and another part of the water being unidirectionally discharged to the water inlet 20, the horizontal pipe 18 being connected to the first water outlet 21, the piston 19 being slidably arranged in the horizontal pipe 18, the extension rod comprising a movable rod 23 capable of being extended and retracted along the sliding direction of the proximity switch 15 and being repositioned, the piston 19 being driven to displace by the water pressure in the horizontal pipe 18, and driving the proximity switch 15 to slide reversely and separate from the top pin 14 through the movable rod 23, the backflow port 12 being connected to the second water outlet 22 through an electromagnetic valve 24.

[0052] In further embodiments, the temperature detector 7 is electrically connected with a controller (not shown in the figure) that controls the start and stop of the drive. When the temperature in the tank containing compartment 2 is too high, the temperature detector 7 converts the high temperature signal into an electrical signal and transmits it to the controller, and the controller starts the drive. Then the drive drives the top pin 14 to move a certain distance, so that the top pin 14 touches the proximity switch 15. The proximity switch 15 is used to turn on and off the operating circuit of the pressurizing pump 9 and to open and close the electromagnetic valve 24. When the proximity switch 15 is touched by the top pin 14, the operating circuit of the pressurizing pump 9 is closed, the pressurizing pump 9 is started, and the electromagnetic valve 24 closes the passage from the second drainage port 22 to the backflow port 12. The water in the first water tank 8 is pressurized and pumped out by the pressurizing pump 9, and the pressurized water is discharged from the water outlet 11 and flows to the spray cooling assembly and the water inlet 20 in two branches. During this process, the spray cooling assembly sprays water in the form of mist to cool the oil tank 4. At the same time, the water in the second water tank 17 accumulates, and when the water level in the second water tank 17 exceeds the first drainage port 21, the water in the second water tank 17 flows into the horizontal pipe 18 through the first drainage port 21. When the second water tank 17 is full, the water pressure pushes the piston 19 in the horizontal pipe 18 to slide and drive the movable rod 23 to move, and the retractable rod is in a retracted state and generates a restoring force. After the movable rod 23 moves, it drives the proximity switch 15 to move away from the top pin 14. Once the proximity switch 15 is separated from the top pin 14 and loses contact, the operating circuit of the pressurizing pump 9 is disconnected, the pressurizing pump 9 stops, and the electromagnetic valve 24 opens the passage from the second drainage port 22 to the backflow port 12. At this time, the spray cooling assembly stops spraying water, and the water level in the second water tank 17 gradually decreases. The water in the second water tank 17 flows into the first water tank 8 through the backflow port 12. The movable rod 23 drives the piston 19 to move in the opposite direction due to the restoring force. Since the water level in the second water tank 17 gradually decreases, the water in the horizontal pipe 18 is gradually pushed back by the piston 19 until the movable rod 23 returns to the initial state. At this time, the proximity switch 15 is driven by the movable rod 23 to be in contact with the top pin 14 again, and the pressurizing pump 9 is started again. In this way, the spray cooling assembly sprays water intermittently in a cyclic manner. When the temperature in the tank containing compartment 2 decreases, the temperature detector 7 converts the low temperature signal into an electrical signal and transmits it to the controller, and the controller starts the drive to drive the top pin 14 to move in the opposite direction. At this time, the top pin 14 is completely separated from the proximity switch 15, so that the spray cooling assembly does not spray water until the temperature in the tank containing compartment 2 increases again. The drive is started only according to the signal transmitted by the temperature detector 7 to the controller.

[0053] When the oil tank 4 is at high temperature, if the water spray cooling is continuously carried out, the tank body will be cracked due to rapid temperature alternation, which will cause safety hidden danger, so the spray cooling of the oil tank 4 can only be intermittent, the water mist sprayed by the spray cooling assembly falls on the tank body of the oil tank 4, and the water mist is evaporated to absorb heat so as to take away the temperature of the oil tank 4.

[0054] In further embodiments, in order to show the specific structure of the driver, the following features are provided:

[0055] The double-layer control cabinet 25 and the containing cabinet 26 are fixedly arranged in the control room 1, the first water tank 8 is fixedly arranged in the containing cabinet 26, the intermittent driving mechanism is arranged in the upper layer of the double-layer control cabinet 25, and the pressurizing pump 9 is fixedly arranged in the lower layer of the double-layer control cabinet 25; the driver comprises a motor base 27, a stepping motor 28, a threaded rod 29 and a threaded sleeve 30; the motor base 27 is fixedly arranged on the upper layer of the double-layer control cabinet 25 through a support 31; the stepping motor 28 is horizontally fixedly arranged in the motor base 27; the threaded rod 29 is coaxially and fixedly connected with the output end of the stepping motor 28; the threaded sleeve 30 is arranged on the threaded rod 29 and threadedly matched with the threaded rod 29; two limiting rods 32 parallel to the threaded rod 29 are formed on one end of the motor base 27 close to the threaded rod 29, and the threaded rod 29 is located between the two limiting rods 32; two sliding sleeves 33 are formed on the threaded sleeve 30 and slidably arranged on the two limiting rods 32 respectively; and the top pin 14 is fixedly connected with the threaded sleeve 30, and the axial direction of the top pin 14 and the sliding direction of the proximity switch 15 are consistent with the axial direction of the threaded rod 29.

[0056] When the temperature detector 7 detects high temperature, the controller starts the stepping motor 28, so that the output end of the stepping motor 28 drives the threaded rod 29 to rotate by a certain angle, and the threaded sleeve 30 threadedly matched with the threaded rod 29 is only horizontally displaced due to the limiting of the two limiting rods 32, and finally the top pin 14 connected with the threaded sleeve 30 is horizontally displaced and abuts against the proximity switch 15; when the temperature detector 7 detects low temperature, the controller starts the stepping motor 28 to reverse the output end of the stepping motor 28, so as to reversely displace the top pin 14 and separate the top pin 14 from the proximity switch 15;

[0057] The output end of the stepping motor 28 only rotates or reverses by a certain number of turns, so the displacement distance of the top pin 14 driven by the threaded sleeve 30 is certain, and when the proximity switch 15 is installed, since the proximity switch 15 is slidably connected, the distance between the proximity switch 15 and the top pin 14 can be adjusted by sliding the proximity switch 15, so that when the stepping motor 28 drives the top pin 14 to displace to the position where the stepping motor 28 stops, the top pin 14 can abut against the proximity switch 15;

[0058] Since the proximity switch 15 controls the pressurizing pump 9, if the displacement of the ejector pin 14 is directly controlled by the stepping motor 28, the intermittent water supply of the spray cooling assembly can also be realized by making the ejector pin 14 continuously contact and separate from the proximity switch 15. However, in this way, the stepping motor 28 needs to be frequently started, and the stepping motor 28 is a precision control device, and frequent starting will cause certain damage to the stepping motor 28. In the device, the stepping motor 28 is only started according to the signal transmitted by the temperature detector 7 to the controller, which reduces the number of times the stepping motor 28 is started frequently. The control mechanism of the device reversely drives the displacement of the proximity switch 15 through hydraulic drive, so that the proximity switch 15 is separated from the ejector pin 14, and this way replaces the frequent starting of the stepping motor 28, is efficient and environmentally friendly, and further prolongs the service life of the stepping motor 28.

[0059] In further embodiments, in order to show the specific connection mode of the horizontal pipe 18 and the connection mode of the movable rod 23 and the piston 19, the following features are specifically provided:

[0060] The top of the second water tank 17 is fixedly provided with a rectangular mounting seat 34 which is horizontal and located beside the motor base 27. A straight line slide rail is fixedly provided on the rectangular mounting seat 34 in a horizontal manner, and a sliding plate 35 is provided on the straight line slide rail. The proximity switch 15 is fixedly connected with the sliding plate 35. The inside of the rectangular mounting seat 34 is hollow. The horizontal pipe 18 is fixedly provided in the inside of the rectangular mounting seat 34. The axial direction of the horizontal pipe 18 is consistent with the axial direction of the threaded rod 29. One end of the horizontal pipe 18 is connected with the second water tank 17 through a first connecting pipe 36. The other end of the horizontal pipe 18 is coaxially formed with a first blocking ring 37. The cap end of the piston 19 faces the first connecting pipe 36. The rod part of the piston 19 horizontally penetrates through the first blocking ring 37 and extends out of the horizontal pipe 18. A connecting rod 38 is coaxially fixedly connected to the extending end of the rod part of the piston 19. The connecting rod 38 is connected with the movable rod 23 through a first vertical rod 39.

[0061] When the level in the second water tank 17 gradually rises, the water in the second water tank 17 will be discharged into the horizontal pipe 18 through the first connecting pipe 36. Once the second water tank 17 is filled with water, the water pressure in the horizontal pipe 18 will resist the cap end of the piston 19, so that the piston 19 slides away from the jackscrew 14 in the horizontal pipe 18. When the piston 19 slides, the rod part of the piston 19 extending out of the horizontal pipe 18 will drive the movable rod 23 to displace, and finally the proximity switch 15 connected with the movable rod 23 will be driven by the movable rod 23 to gradually move away from the jackscrew 14. Once the proximity switch 15 is separated from the jackscrew 14, the pressurizing pump 9 will stop, and the electromagnetic valve 24 will open the passage of the second water outlet 22 to the backflow port 12. At this time, since the second water tank 17 is located above the first water tank 8, water flows to the lower place, so the water in the second water tank 17 will be discharged into the backflow port 12 through the second water outlet 22 and the electromagnetic valve 24, and the water pressure in the horizontal pipe gradually decreases, so that the movable rod 23 can be reset by the elastic force. Since there is still a certain amount of water in the horizontal pipe at this time, the piston 19 will have a certain resistance when moving, so the movable rod 23 will drive the proximity switch 15 to displace slowly until the movable rod 23 is reset to the initial state, and the proximity switch 15 is in contact with the jackscrew 14 again. Through the resistance of water when the piston 19 is reversely driven to displace, the displacement time of the proximity switch 15 when it is reset is reduced, that is, the time when the proximity switch 15 is in contact with the jackscrew 14 again is reduced, so as to increase the interval time of water spraying of the spray cooling assembly. During the interval time, the water mist falling on the oil tank 4 is evaporated by heating to take away the temperature on the surface of the oil tank 4.

[0062] In further embodiments, in order to realize the rebound reset of the movable rod 23, the following features are specifically provided:

[0063] The end of the rectangular mounting seat 34 away from the motor base 27 is formed with a vertical plate 40. The telescopic rod further includes a fixed sleeve 41 and a first spring 42. The fixed sleeve 41 is arranged on the vertical plate 40, and the axial direction of the fixed sleeve 41 is consistent with the axial direction of the horizontal pipe 18. The movable rod 23 is slidably arranged in the fixed sleeve 41. The first spring 42 is arranged in the fixed sleeve 41, and the two ends of the first spring 42 are in contact with the movable rod 23 and the vertical plate 40, respectively. One end of the movable rod 23 is located in the fixed sleeve 41, and the other end extends horizontally to the proximity switch 15. The upper end of the first vertical rod 39 is fixedly connected with the one end of the movable rod 23 located in the fixed sleeve 41. A strip-shaped accommodating groove 43 for avoiding the horizontal displacement of the first vertical rod 39 is formed in the fixed sleeve 41. The other end of the movable rod 23 is fixedly provided with a second vertical rod 44 extending downward. A horizontal strip-shaped plate 45 is fixedly arranged on the end of the sliding plate 35 close to the second vertical rod 44. A strip-shaped sliding groove 46 with the length direction consistent with the axial direction of the movable rod 23 is formed in the strip-shaped plate 45. The lower end of the second vertical rod 44 is inserted into the strip-shaped sliding groove 46.

[0064] In the initial state, the first spring 42 is fully released, and the active rod 23 is in the extended state due to the resistance of the first spring 42. After the first spring 42 is fully released, the active rod 23 is extended to the limit, and when the active rod 23 is extended to the limit, the lower end of the second vertical rod is in contact with one end of the strip-shaped sliding groove 46 close to the proximity switch 15. When the piston 19 is squeezed and slides in the horizontal pipe 18, the piston 19 drives the active rod 23 to retract into the fixed sleeve 41 through the first vertical rod 39. In this process, the active rod 23 compresses the first spring 42, so that the first spring 42 generates elastic force. The upper end of the first vertical rod slides in the strip-shaped accommodating groove 43, and the second vertical rod 44 slides in the strip-shaped sliding groove 46. The second vertical rod 44 moves from one end of the strip-shaped sliding groove 46 close to the proximity switch 15 to the other end of the strip-shaped sliding groove 46 away from the proximity switch 15. Once the second vertical rod 44 moves to the other end of the strip-shaped sliding groove 46 away from the proximity switch 15, the second vertical rod 44 drives the proximity switch 15 to slide on the straight sliding rail through the strip-shaped plate 45. At this time, the proximity switch 15 is separated from the top pin 14. After that, the water level in the second water tank 17 gradually decreases, and the water pressure acting on the piston 19 gradually decreases. At this time, the reset elastic force of the first spring 42 overcomes the water resistance of the piston 19 to resist the extension of the active rod 23. When the active rod 23 gradually extends, the second vertical rod 44 slides in the strip-shaped sliding groove 46. When the second vertical rod 44 slides and contacts one end of the strip-shaped sliding groove 46 close to the proximity switch 15, the second vertical rod 44 drives the proximity switch 15 to move towards the top pin 14 through the strip-shaped plate 45. Until the elastic force of the first spring 42 is fully released, the proximity switch 15 contacts the top pin 14 again. Through the cooperation of the second vertical rod 44 and the strip-shaped sliding groove 46, when the active rod 23 is driven to extend by the first spring 42, the displacement of the proximity switch 15 and the displacement of the active rod 23 have a time difference, so as to reduce the displacement time of the proximity switch 15 when it is reset, and further increase the interval time of the spray cooling assembly.

[0065] In further embodiments, the active rod 23 connected with the proximity switch 15 is elastically connected by the first spring 42, and the proximity switch 15 is in an active state. When the proximity switch 15 is contacted by the top pin 14, the proximity switch 15 will move backward with the contact of the top pin 14. At this time, the force of the top pin 14 contacting the proximity switch 15 is too small to trigger the proximity switch 15. Therefore, in order to solve the above problems, the following features are provided:

[0066] The connecting rod 38 and the slide plate 35 are provided with a retreat-stop mechanism, and the connecting rod 38 and the first vertical rod 39 are provided with a tolerant displacement mechanism. The retreat-stop mechanism comprises a horizontal slide rod 47, a vertical slide rod 48 and a vertical sleeve 49. The vertical sleeve 49 is fixedly arranged on the top of the rectangular mounting base 34. The upper end of the vertical sleeve 49 is of an open structure, and the lower end is of a closed structure. The vertical slide rod 48 is slidably arranged in the vertical sleeve 49. The upper end of the vertical slide rod 48 is provided with a first inclined wedge block 50 which can be elastically pressed downward. The bottom of the slide plate 35 is formed with a second inclined wedge block 51. The vertical part of the first inclined wedge block 50 is in abutment with the vertical part of the second inclined wedge block 51. One end of the horizontal slide rod 47 is fixedly connected with the end of the connecting rod 38 close to the piston 19. The other end of the horizontal slide rod 47 horizontally penetrates through the lower end of the vertical sleeve 49 and is in inclined wedge cooperation with the lower end of the vertical slide rod 48. The tolerant displacement mechanism comprises a second spring 52 and a block 53. The end of the connecting rod 38 away from the piston 19 is provided with a strip-shaped recess 54 with the length direction consistent with the axial direction of the connecting rod 38. The block 53 is located in the end of the strip-shaped recess 54 away from the piston 19 and is fixedly connected with the lower end of the first vertical rod 39. The second spring 52 is arranged in the strip-shaped recess 54. The two ends of the second spring 52 are respectively in abutment with the block 53 and the inner wall of the strip-shaped recess 54.

[0067] In the initial state, the second spring 52 is fully released, and the horizontal slide rod 47 is in cooperation with the inclined wedge of the vertical slide rod 48, so that the vertical slide rod 48 is displaced upward, so that the first inclined wedge block 50 at the upper end of the vertical slide rod 48 is close to the bottom of the slide plate 35, and finally the vertical part of the first inclined wedge block 50 is in close contact with the vertical part of the first inclined wedge block 50. At this time, the vertical slide rod 48 is in a fixed state, and then when the top pin 14 is driven to displace towards the proximity switch 15, the second inclined wedge block 51 provided at the bottom of the slide plate 35 will be in contact with the first inclined wedge block 50, so that the proximity switch 15 will not be retreated by the top pin 14, and then when the proximity switch 15 is triggered, the pressurizing pump 9 is started, and water is introduced into the horizontal pipe 18. At this time, the piston 19 sliding through the water pressure will drive the connecting rod 38 to displace, and the connecting rod 38 will drive the proximity switch 15 to displace through the first vertical rod 39. However, at this time, the proximity switch 15 is stopped by the first inclined wedge block 50 on the vertical slide rod 48, and the connecting rod 38 is stuck and cannot displace, so the tolerance displacement mechanism is used to make the connecting rod 38 displace before the proximity switch 15 is stopped. In this process, the first vertical rod 39 is in a fixed state because the proximity switch 15 is stopped, so the connecting rod 38 will drive the second spring 52 to displace towards the abutting block 53. Relative to the connecting rod 38, the abutting block 53 provided at the lower end of the first vertical rod 39 will slide in the strip-shaped groove 54 and compress the second spring 52, so that the tolerance amount of the connecting rod 38 is given by the extension and retraction amount generated by the deformation of the second spring 52. Once the connecting rod 38 moves, the connecting rod 38 will drive the horizontal slide rod 47 to slide out from the lower end of the vertical pipe sleeve 49, and the vertical slide rod 48 will descend due to gravity and lose the resistance of the horizontal slide rod 47. Finally, the lower end of the vertical slide rod 48 will be in contact with the lower end of the vertical pipe sleeve 49, and the first inclined wedge block 50 at the upper end of the vertical slide rod 48 will be separated from the second inclined wedge block 51, so that the proximity switch 15 changes from the stopped state to the active state. After the second spring 52 is compressed to the limit, the connecting rod 38 will drive the entire first vertical rod 39 to displace, and finally the proximity switch 15 can be driven to displace.

[0068] When the first vertical rod 39 is driven to reset by the movable rod 23 in the reverse direction, because the water pressure in the horizontal pipe 18 decreases at this time, the piston 19 is not resisted, and then the second spring 52 will fully release the elastic force and drive the entire piston 19 to displace by a distance. The distance is the extension and retraction amount generated by the deformation of the second spring 52, and because of the cooperation of the second vertical rod 44 and the strip-shaped sliding groove 46, when the movable rod 23 is driven to extend by the first spring 42, the displacement of the proximity switch 15 has a time difference with the displacement of the movable rod 23, and then the vertical slide rod 48 will reset before the slide plate 35, that is, after the vertical slide rail is fully raised, the first inclined wedge block 50 is pressed downward by the elasticity to prevent the first inclined wedge block 50 from colliding with the second inclined wedge block 51.

[0069] In further embodiments, in order to realize the elastic downward pressing function of the first wedge block 50, the following features are specifically provided:

[0070] The vertical slide rod 48 comprises a vertical tube 55 and a solid column 56, the solid column 56 is vertically slidably arranged in the vertical tube sleeve 49, the lower end of the solid column 56 is wedge-shapedly matched with one end of the horizontal slide rod 47, the lower end of the vertical tube 55 is of an open structure and is coaxially fixedly connected with the upper end of the solid column 56, the upper end of the vertical tube 55 is coaxially formed with a second blocking ring 57, the lower end of the first wedge block 50 is formed with a slide pin 58 which passes through the second blocking ring 57 coaxially downward, the lower end of the slide pin 58 is coaxially formed with a circular slide block 59 which is slidably arranged in the vertical tube 55, and the vertical tube 55 is provided with a third spring 60 which is vertically arranged, the upper and lower ends of the third spring 60 are respectively in abutment with the circular slide block 59 and the solid column 56.

[0071] When the vertical slide rod 48 is upwardly displaced by the horizontal slide rod 47, the third spring 60 is completely released and the first wedge block 50 is upwardly lifted by the slide pin 58, but the first wedge block 50 is always located below the slide plate 35 and does not abut against the slide plate 35, during the displacement of the slide plate 35 towards the top pin 14, the second wedge block 51 gradually displaces towards the first wedge block 50 until the inclined surface of the second wedge block 51 abuts against the inclined surface of the first wedge block 50, thereafter the horizontal abutment force of the first wedge block 50 given by the second wedge block 51 drives the first wedge block 50 to downwardly displace, at this time the slide pin 58 is retracted in the vertical tube sleeve 49, and the circular slide block 59 compresses the third spring 60, when the second wedge block 51 moves beyond the first wedge block 50, the first wedge block 50 loses the abutment force of the second wedge block 51, and finally the first wedge block 50 is upwardly lifted to the initial state by the restoring force of the third spring 60, at this time the vertical portion of the first wedge block 50 and the vertical portion of the second wedge block 51 are opposite to each other, thereby the retreat prevention function of the first wedge block 50 to the proximity switch 15 is restored again, wherein the second blocking ring 57 is provided to prevent the slide pin 58 from being lifted out of the vertical tube sleeve 49 by the third spring 60.

[0072] In further embodiments, in order to show the specific structure of the spray cooling assembly, the following features are provided:

[0073] The spray cooling assembly comprises a plurality of water pipes 61 which are parallelly arranged along the length direction of the oil tank 4 and are connected in series, each water pipe 61 is connected with a rotary spray head 62 which faces the oil tank 4, the outlet of the pressurized pump 9 is connected with a horizontal pipe 16, the water pipe 61 close to the control room 1 is connected with the pipe 16 through a plurality of second connecting pipes 63, the middle portion of the pipe 16 is connected with the water inlet 20 through the first hose 5, and a one-way valve 6 is arranged at the connection between the first hose 5 and the water inlet 20.

[0074] When the pressurized pump 9 is started, the water flows through the discharge pipe 16 and then flows to the No. 1 hose 5 and one of the water pipes 61. Thereafter, the several rotating nozzles 62 will rotate and spray water, and the water will be sprayed in the form of mist on the surface of the oil tank 4. The water entering the No. 2 water tank 17 through the water inlet 20 will gradually increase, until the water level in the No. 2 water tank 17 exceeds the No. 1 water outlet 21. Thereafter, the water in the No. 2 water tank 17 will flow to the horizontal pipe 18 and act on the cap end of the piston 19. The one-way valve 6 is used to prevent the water in the No. 2 water tank 17 from flowing back into the No. 1 hose 5.

[0075] In further embodiments, in order to show the specific connection mode of the No. 2 water outlet 22 and the backflow port 12, the following features are provided:

[0076] The No. 2 water outlet 22 is connected to the backflow port 12 through the No. 2 hose 13, wherein the electromagnetic valve 24 is arranged at the connection between the No. 2 hose 13 and the backflow port 12.

[0077] Since the No. 2 water tank 17 is higher than the No. 1 water tank 8, when the electromagnetic valve 24 opens the passage between the No. 2 hose 13 and the backflow port 12, the water in the No. 2 water tank 17 will flow back into the No. 1 water tank 8 through the No. 2 hose 13. In this way, the water used to act on the piston 19 for hydraulic drive will be recycled, saving water resources.

[0078] Working principle:

[0079] When the temperature in the tank body containing bin 2 is too high, the temperature detector 7 will convert the high temperature signal into an electrical signal to the controller, and the controller will start the stepper motor 28, and then the stepper motor 28 drives the top pin 14 to displace an end distance, so that the top pin 14 contacts the proximity switch 15, at this time the proximity switch 15 is prevented from being retracted by the first wedge block 50, so that the proximity switch 15 will not be retracted with the contact of the top pin 14, when the proximity switch 15 is triggered, the pressurizing pump 9 is started, and the water flows through the discharge pipe 16 and then flows to the first hose 5 and one of the water pipes 61, and then several rotating nozzles 62 will rotate and spray water, and the water mist attached to the surface of the oil tank 4 will be evaporated to absorb heat, thereby taking away the temperature on the surface of the oil tank 4, the water entering the second water tank 17 through the water inlet 20 will gradually increase, until the water level in the second water tank 17 exceeds the first drain 21, and then the water in the second water tank 17 will flow into the horizontal pipe 18 and act on the cap end of the piston 19, and then the piston 19 is slid in the horizontal pipe 18 by the water pressure, when the piston 19 slides, the connecting rod 38 will drive the second spring 52 to displace towards the abutting block 53, relative to the connecting rod 38, the abutting block 53 arranged at the lower end of the first vertical rod 39 will slide in the strip-shaped groove 54 and compress the second spring 52, and then the extension and contraction amount generated by the deformation of the second spring 52 will give the connecting rod 38 a tolerant displacement amount, once the connecting rod 38 moves, the connecting rod 38 will drive the horizontal slide rod 47 to slide out of the lower end of the vertical pipe sleeve 49, and at the same time the vertical slide rod 48 loses the contact of the horizontal slide rod 47 and falls due to gravity, and finally the lower end of the vertical slide rod 48 will contact the lower end of the vertical pipe sleeve 49, and the first wedge block 50 arranged at the upper end of the vertical slide rod 48 will be separated from the second wedge block 51, so that the proximity switch 15 changes from the state of being prevented from being retracted to the state of being active, and then when the second spring 52 is compressed to the limit, the connecting rod 38 will drive the entire first vertical rod 39 to displace, and finally the proximity switch 15 can be driven to displace, after the proximity switch 15 displaces, the pressurizing pump 9 stops, the second water tank 17 stops filling water, and at the same time the electromagnetic valve 24 opens the passage between the second hose 13 and the backflow port 12, and then the water in the second water tank 17 will flow back into the first water tank 8 through the second hose 13, and the water in the horizontal pipe 18 will decrease with the decrease of the water level in the second water tank 17, at this time the reset spring force of the first spring 42 will overcome the water resistance of the piston 19 to contact the movable rod 23 to extend, when the movable rod 23 gradually extends, the second vertical rod 44 will first slide in the strip-shaped slide groove 46, when the second vertical rod 44 slides and contacts the end of the strip-shaped slide groove 46 close to the proximity switch 15, the second vertical rod 44 will drive the proximity switch 15 to displace towards the top pin 14 through the strip-shaped plate 45, until the elastic force of the first spring 42 is completely released, at this time the proximity switch 15 contacts the top pin 14 again, so that the pressurizing pump 9 is started again, and the cycle is repeated, and finally the intermittent water spraying of the several rotating nozzles 62 is realized.

[0080] The above embodiments only express one or several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A skid-mounted environmentally-friendly oil unloading system, comprising a tank containing bin (2), an oil tank (4) is fixed in the tank containing bin (2), characterized in that, The water supply assembly, the spray cooling assembly and the temperature detector (7) are further included; the temperature detector (7) is used for detecting the temperature in the tank containing bin (2), and the spray cooling assembly is used for spraying water to the oil tank (4) for cooling; the water supply assembly includes a water tank (8), a pressure pump (9) and an intermittent driving mechanism used for intermittently starting and stopping the pressure pump (9); the intermittent driving mechanism includes a driver, a proximity switch (15) and a regulating mechanism; the driver is used for triggering the proximity switch (15) to start the pressure pump (9); The regulating mechanism includes a second water tank (17) and a regulating assembly, a part of water in the water tank (8) is pressurized by the pressure pump (9) and enters the spray cooling assembly, and another part is unidirectionally discharged into the second water tank (17); the second water tank (17) is provided with a water inlet (20), a first water outlet (21) connected with the regulating assembly and a second water outlet (22) used for backflow to the water tank (8); the regulating assembly drives the proximity switch (15) to move away from or close to the driver under different water pressures generated by the liquid level of the second water tank (17); The water tank (8) is provided with a water inlet (10), a water outlet (11) and a backflow port (12); the second water tank (17) is located above the water tank (8), the first water outlet (21) is higher than the second water outlet (22), the water outlet (11) is connected with the water inlet end of the pressure pump (9), and the backflow port (12) is connected with the second water outlet (22) through an electromagnetic valve (24); The intermittent driving mechanism further includes a top pin (14) corresponding to the proximity switch (15); the regulating assembly includes a horizontal pipe (18), a piston (19) and an extension rod; the proximity switch (15) is slidingly connected above the second water tank (17), so that the proximity switch (15) can slide in the horizontal direction; the driver is used for driving the top pin (14) to top the proximity switch (15), so as to start the pressure pump (9); the horizontal pipe (18) is connected with the first water outlet (21), the piston (19) is slidingly arranged in the horizontal pipe (18), and the extension rod includes a movable rod (23) capable of extending and rebounding in the sliding direction of the proximity switch (15); the piston (19) is driven to displace by the water pressure in the horizontal pipe (18), and drives the proximity switch (15) to slide and separate from the top pin (14) through the movable rod (23).

2. The skid-mounted environmentally friendly oil draining system according to claim 1, characterized in that, The water inlet (20) is arranged at the bottom of the second water tank (17); the first water outlet (21) is arranged near the top of the second water tank (17), and the second water outlet (22) is arranged near the bottom of the second water tank (17).

3. The skid-mounted environmentally friendly oil draining system according to claim 2, characterized in that, The control room (1) is internally fixed with a double-layer control cabinet (25) and a containing cabinet (26), the first water tank (8) is fixed in the containing cabinet (26), the intermittent driving mechanism is arranged on the upper layer of the double-layer control cabinet (25), and the pressurizing pump (9) is fixed on the lower layer of the double-layer control cabinet (25), the driver comprises a motor base (27), a stepping motor (28), a threaded rod (29) and a threaded sleeve (30), the motor base (27) is fixed on the upper layer of the double-layer control cabinet (25) through a support (31), the stepping motor (28) is horizontally fixed in the motor base (27), the threaded rod (29) is coaxially and fixedly connected with the output end of the stepping motor (28), the threaded sleeve (30) is arranged on the threaded rod (29) and is in threaded connection with the threaded rod (29), two limiting rods (32) parallel to the threaded rod (29) are formed on one end of the motor base (27) close to the threaded rod (29), the threaded rod (29) is located between the two limiting rods (32), two sliding sleeves (33) are formed on the threaded sleeve (30) and are slidably arranged on the two limiting rods (32) respectively, the top pin (14) is fixedly connected with the threaded sleeve (30), and the axial direction of the top pin (14) and the sliding direction of the proximity switch (15) are consistent with the axial direction of the threaded rod (29).

4. The skid-mounted environmentally friendly oil draining system according to claim 3, characterized in that, The top of the second water tank (17) is fixedly provided with a horizontal rectangular mounting seat (34) beside the motor base (27), a horizontal linear sliding rail is fixedly arranged on the rectangular mounting seat (34), a sliding plate (35) is arranged on the linear sliding rail, the proximity switch (15) is fixedly connected with the sliding plate (35), the inside of the rectangular mounting seat (34) is hollow, a horizontal pipe (18) is fixedly arranged in the inside of the rectangular mounting seat (34), the axial direction of the horizontal pipe (18) is consistent with the axial direction of the threaded rod (29), one end of the horizontal pipe (18) is connected with the second water tank (17) in communication through a first connecting pipe (36), the other end of the horizontal pipe (18) is coaxially formed with a first blocking ring (37), the cap end of the piston (19) faces the first connecting pipe (36), the rod portion of the piston (19) horizontally penetrates through the first blocking ring (37) and extends out of the horizontal pipe (18), a connecting rod (38) is fixedly connected with the extending end of the rod portion of the piston (19) in a coaxial mode, and the connecting rod (38) is connected with the movable rod (23) through a first vertical rod (39).

5. The skid-mounted environmentally friendly oil draining system according to claim 4, characterized in that, The vertical plate (40) is formed on the end of the rectangular mounting base (34) away from the motor base (27), the telescopic rod further comprises a fixing sleeve (41) and a first spring (42), the fixing sleeve (41) is arranged on the vertical plate (40), the axial direction of the fixing sleeve (41) is consistent with the axial direction of the horizontal pipe (18), the movable rod (23) is slidingly arranged in the fixing sleeve (41), the first spring (42) is arranged in the fixing sleeve (41), and the two ends of the first spring (42) are respectively in abutment with the movable rod (23) and the vertical plate (40), one end of the movable rod (23) is located in the fixing sleeve (41), the other end of the movable rod (23) extends horizontally to the proximity switch (15), the upper end of the first vertical rod (39) is fixedly connected with one end of the movable rod (23) located in the fixing sleeve (41), a strip-shaped accommodating groove (43) for allowing the first vertical rod (39) to displace horizontally is formed in the fixing sleeve (41), the other end of the movable rod (23) is fixedly provided with a second vertical rod (44) downward vertically, one end of the sliding plate (35) close to the second vertical rod (44) is fixedly provided with a horizontal strip-shaped plate (45), the strip-shaped plate (45) is provided with a strip-shaped sliding groove (46) with the axial direction consistent with the axial direction of the movable rod (23), and the lower end of the second vertical rod is inserted into the strip-shaped sliding groove (46).

6. The skid-mounted environmentally friendly oil draining system according to claim 4, characterized in that, The connecting rod (38) and the sliding plate (35) are provided with a retreat-preventing mechanism, and the connecting rod (38) and the first vertical rod (39) are provided with a tolerant displacement mechanism, the retreat-preventing mechanism comprises a horizontal sliding rod (47), a vertical sliding rod (48) and a vertical pipe sleeve (49), the vertical pipe sleeve (49) is fixedly arranged on the top of the rectangular mounting base (34), the upper end of the vertical pipe sleeve (49) is of an open structure, the lower end of the vertical pipe sleeve (49) is of a closed structure, the vertical sliding rod (48) is slidingly arranged in the vertical pipe sleeve (49), the upper end of the vertical sliding rod (48) is provided with a first inclined wedge block (50) capable of being elastically pressed downward, the bottom of the sliding plate (35) is formed with a second inclined wedge block (51), the vertical part of the first inclined wedge block (50) is in abutment with the vertical part of the second inclined wedge block (51), one end of the horizontal sliding rod (47) is fixedly connected with the end of the connecting rod (38) close to the piston (19), the other end of the horizontal sliding rod (47) horizontally penetrates through the lower end of the vertical pipe sleeve (49) and is in inclined wedge cooperation with the lower end of the vertical sliding rod (48), the tolerant displacement mechanism comprises a second spring (52) and an abutting block (53), the end of the connecting rod (38) away from the piston (19) is provided with a strip-shaped recess (54) with the axial direction consistent with the axial direction of the connecting rod (38), the abutting block (53) is located in the end of the strip-shaped recess (54) away from the piston (19) and is fixedly connected with the lower end of the first vertical rod (39), the second spring (52) is arranged in the strip-shaped recess (54), and the two ends of the second spring (52) are respectively in abutment with the abutting block (53) and the inner wall of the strip-shaped recess (54).

7. The skid-mounted environmentally friendly oil draining system according to claim 4, characterized in that, The vertical slide rod (48) comprises a vertical pipe (55) and a solid column (56), the solid column (56) is vertically slidably arranged in the vertical pipe sleeve (49), the lower end of the solid column (56) is wedge-shaped matched with one end of the horizontal slide rod (47), the lower end of the vertical pipe (55) is of an open structure and is coaxially and fixedly connected with the upper end of the solid column (56), the upper end of the vertical pipe (55) is coaxially formed with a No. 2 stop ring (57), the lower end of the No. 1 wedge-shaped block (50) is formed with a slide pin (58) which passes through the No. 2 stop ring (57) downward, the lower end of the slide pin (58) is coaxially formed with a circular slide block (59) which is slidably arranged in the vertical pipe (55), the vertical pipe (55) is provided with a No. 3 spring (60) which is vertically arranged, the upper and lower ends of the No. 3 spring (60) are respectively abutted with the circular slide block (59) and the solid column (56).

8. The skid-mounted environmentally friendly oil draining system according to claim 1, characterized in that, The spray cooling assembly comprises a plurality of water pipes (61) which are parallelly arranged along the length direction of the oil tank (4) and connected in series, each water pipe (61) is connected with a rotary spray head (62) which faces the oil tank (4), the water outlet end of the pressurized pump (9) is connected with a horizontal pipe (16), the water pipe (61) close to the control room (1) is connected with the pipe (16) through a plurality of No. 2 connecting pipes (63), the No. 2 water tank (17) is provided with a water inlet (20), the middle part of the pipe (16) is connected with the water inlet (20) through a No. 1 hose (5), and a one-way valve (6) is arranged at the connection position of the No. 1 hose (5) and the water inlet (20).

9. The skid-mounted environmentally friendly oil draining system according to claim 1, characterized in that, The No. 2 water outlet (22) is connected with the backflow port (12) through a No. 2 hose (13), wherein the electromagnetic valve (24) is arranged at the connection position of the No. 2 hose (13) and the backflow port (12).

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