Energy-saving oil filtering and scrap iron removing device

Abstract

The utility model discloses an energy-saving oil filtering and scrap iron removing device which comprises an oil tank provided with an oil inlet, an oil outlet and a slag discharging opening, and further comprises a flange plate installed on the top of the oil tank and an air inlet formed in the side face of the oil tank. A plurality of protective sleeves are fixedly connected to the flange plate in the direction longitudinally penetrating through the plate face of the flange plate, and a magnetic bar lifting mechanism is arranged above the flange plate. The magnetic bar lifting mechanism comprises an air cylinder, a lifting panel and a plurality of magnetic bars which are fixedly connected to the lower portion of the lifting panel and inserted into the protective sleeve in a matched mode, and the lifting panel is connected with a movable piston rod of the air cylinder. The device is high in automation degree, convenient to operate and use by personnel, high in safety coefficient and stable in performance, the magnetic suction washing and filtering time is greatly shortened, scrap iron is removed cleanly, and a user does not need to frequently replace a filtering magnetic grid and a filter screen any more.

Description

Technical Field

[0001] The utility model relates to an energy-saving oil filtering and iron chip removing device, belonging to the technical field of oil filtering and magnetic iron chip removing equipment for large oil storage tanks. Background Art

[0002] Today's power plant steam turbines suffer from oil purity that doesn't meet ideal requirements, causing severe rotor wear and impure filtration of metal debris and iron chips in the oil, leading to operational hazards. Furthermore, the safety requirements for power plant steam turbines are constantly increasing, leading to a continuous stream of technologically innovative products.

[0003] The inventors of this application have discovered that the prior art has at least the following technical problems:

[0004] First of all, the ordinary simple magnetic bar grid originally used has a complicated magnetic filtration operation process, the filter is easily clogged, and it is inconvenient to clean it manually, resulting in the filtered oil being impure and mixed with many tiny iron filings.

[0005] Secondly, due to the poor magnetic attraction effect, the filter magnetic grid needs to be replaced frequently, resulting in a particularly large consumption of magnetic rods. Users also often complain about the serious economic waste caused by technical problems.

[0006] Therefore, there is an urgent need for technological innovation to improve the removal effect and cleaning efficiency, transform the original process production line, and reduce the cost of dandruff removal. Summary of the Invention

[0007] This application solves the problem of time-consuming and labor-intensive iron chip removal process and poor impurity removal effect in the prior art by providing an energy-saving oil filtering and iron chip removal device, thereby achieving the technical effect of high efficiency and energy saving. The device of this utility model has the characteristics of long service life and wide application range.

[0008] The present application provides an energy-saving oil filtering and iron chip removing device, comprising an oil tank, wherein the oil tank is provided with an oil inlet, an oil outlet, and a slag discharge port, and is characterized in that it further comprises a flange mounted on the top of the oil tank and an air inlet provided on the side of the oil tank;

[0009] A plurality of sheath pipes are fixedly connected to the flange in the direction of the flange surface running longitudinally through the flange, and a magnetic bar lifting mechanism is provided above the flange;

[0010] The magnetic rod lifting mechanism includes a cylinder, a lifting panel and a plurality of magnetic rods fixed to the bottom of the lifting panel and adapted to be inserted into the sheath tube. The lifting panel is connected to the movable plug rod of the cylinder.

[0011] Preferably, the air inlet includes a first air inlet provided with a first air inlet pipe and a second air inlet provided with a second air inlet pipe, the first air inlet pipe is evenly distributed along the busbar direction of the circumferential inner wall of the fuel tank; the second air inlet pipe is arranged at the center of the fuel tank and is parallel to the first air inlet pipe, and air outlet holes are distributed on the first air inlet pipe and the second air inlet pipe.

[0012] Preferably, there are two cylinders, which are symmetrically arranged at 180° on the outside of the oil tank, and the movable plug rods of the two cylinders are respectively connected to the lifting panel.

[0013] Preferably, the sheath tube is fixed to the flange in the shape of an equilateral triangle.

[0014] Preferably, the sheath pipe and the flange are sealed and welded using nuts and gaskets.

[0015] Preferably, the top of the sheath tube is open to facilitate the insertion of the magnetic rod, and the bottom of the sheath tube is a sealed structure.

[0016] Preferably, the oil inlet pipe is provided with a first oil inlet valve, a drain valve, a filter, an air inlet valve and a second oil inlet valve in sequence;

[0017] When the oil tank is in normal working condition, the first oil inlet valve and the second oil inlet valve are opened, and the drain valve and the air inlet valve are closed;

[0018] When the oil tank is in the impurity removal working state, the first oil inlet valve and the second oil inlet valve are closed, and the sewage valve and the air inlet valve are opened to reversely flush the filter screen.

[0019] Preferably, the oil outlet, slag discharge port, and the first air inlet and the second air inlet are all provided with control valves.

[0020] Preferably, a PLC control system is further included, and the PL control system is communicatively connected with the cylinder, the first oil inlet valve, the second oil inlet valve, the sewage valve, and the oil outlet, the slag outlet, and the control valves of the first air inlet and the second air inlet.

[0021] The technical solution provided by this application has at least the following technical effects or advantages:

[0022] The utility model has a high degree of automation and is easy to operate and use. It has a high safety factor and stable performance. The magnetic suction flushing and filtration time is greatly reduced, and the iron filings are removed more cleanly. Users no longer need to frequently replace the filter magnetic grid and filter screen.

[0023] The magnetic rod of the utility model is inserted into the stainless steel sheath tube, and is easy and quick to disassemble. When the magnetic rod is pulled upward, the iron filings will automatically fall off due to the loss of the magnetic field. In addition, the filtering cycle flushing makes the surface of the stainless steel tube clean with almost no iron filings sticking, and the surface of the magnetic rod will not be contaminated by oil.

[0024] The operating cycle is extended, which saves operating costs for customers and achieves a high energy-saving effect. It has the characteristics of long service life and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0026] Figure 2 for Figure 1 Middle AA section view;

[0027] Figure 3 for Figure 1 A partial enlarged schematic diagram of point c in the middle;

[0028] Figure 4 for Figure 1 The local enlarged view of point d in the middle;

[0029] Figure 5 for Figure 2 A partial enlarged view of point I in the middle. DETAILED DESCRIPTION

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods. Example

[0031] This embodiment provides an energy-saving oil filtering and iron chip removing device, such as Figure 1-Figure 5 As shown, it includes a fuel tank 1, which is equipped with an oil inlet, an oil outlet, and a slag outlet. The oil inlet pipe is sequentially installed with valves 1#, 4#, filter 2, 2#, and 3#. Valve 4# is the drain valve for filter 2, valve 2# is the air intake valve, and valve 3# is connected to the fuel tank. Valve 8# is installed at the slag outlet at the bottom of the tank, and valve 6# is installed on the oil outlet pipe.

[0032] A flange 3 is installed on the top of the oil tank 1, and a first air inlet 4 and a second air inlet 5 are provided on the side (with a 7# valve installed, not shown in the figure);

[0033] Several protective tubes 6 are fixed to the flange 3 in the direction of the flange surface, and a magnetic rod lifting mechanism is set above the flange. The magnetic rod lifting mechanism includes a cylinder 11, a lifting panel 10 and several magnetic rods 7 fixed to the bottom of the lifting panel and adapted to be inserted into the protective tube. The lifting panel is connected to the movable plug rod of the cylinder. An air pump valve 9# is installed between the cylinder and the air pump. More specifically, the magnetic rod is designed to be removable in this embodiment. Figure 1 As shown, the diameter of the magnetic rod is φ20, and there are more than 130 φ23*1 sheath tubes in the furnace for inserting the magnetic rod. The more than 130 sheath tubes are arranged in an equilateral triangle, and the top is welded to the flange and sealed with M30 nuts and gaskets respectively.

[0034] Preferably, the first air inlet 4 is provided with an air inlet pipe 4-1, and the second air inlet 5 is provided with an air inlet pipe 5-1, and the air inlet pipes 4-1 are evenly distributed along the busbar direction of the circumferential inner wall of the oil tank; the air inlet pipe 5-1 is arranged in the center of the oil tank and is parallel to the air inlet pipe 4-1, and air outlet holes are distributed on the air inlet pipe 4-1 and the air inlet pipe 5-1 for blowing the sheath pipe.

[0035] Preferably, in this embodiment, two air cylinders 11 are arranged 180° symmetrically on the outside of the fuel tank. The movable plug rods of the two cylinders 11 are respectively connected to the lifting panel. Driven by an air source (no additional air pump is required if an air source is available on site; conversely, an additional air pump is required if an air source is not available on site), the entire magnetic rod component is lifted to facilitate flushing of the sheath tube. The pneumatic pump pulls up the main body of the magnetic rod. As the magnetic rod is pulled upward, the iron filings adsorbed on the surface of the stainless steel sheath tube inside the sealed container will automatically fall off due to the loss of magnetic force. Combined with the purge system, the surface of the stainless steel tube is clean and almost free of iron filings. The fallen iron filings fall to the bottom of the container and are discharged through the bottom valve along with some of the dirty oil.

[0036] Preferably, the top of the sheath is open to facilitate the insertion of the magnetic rod, and the bottom of the sheath is a sealed structure made of stainless steel S30408. The magnetic rod has a high magnetic strength (5000-8000 gauss) and cannot come into direct contact with the dirty oil, otherwise it will not be able to remove the iron chips adsorbed on the surface of the magnetic rod.

[0037] Preferably, a PLC control system is also included, and the PL control system is communicatively connected with the cylinder, the first oil inlet valve, the second oil inlet valve, the drain valve, and the oil outlet, the slag outlet, and the control valves of the first air inlet and the second air inlet.

[0038] This device is controlled by a PLC control system and is equipped with an automatic thermostat. The control system can be set to either manual or automatic mode. In manual mode, each valve is started and stopped using buttons on the touch screen. In automatic mode, automatic operation is initiated by pressing the system start and stop buttons on the touch screen.

[0039] The working principle of the utility model is as follows: when the oil tank is in normal working state, the first oil inlet valve and the second oil inlet valve are opened, and the drain valve and the air inlet valve are closed;

[0040] When the oil tank is in the impurity removal working state, the first and second oil inlet valves are closed, the drain valve and the air inlet valve are opened, and the filter screen is reversely flushed. Therefore, a filter screen is installed at the inlet of the equipment pipeline to filter out the impurities in the oil flowing from the pipeline.

[0041] The specific work process is as follows:

[0042] The 9# valve controls the pneumatic pump to control the rise and fall of the cylinder. During operation, the strong magnetic grid is lowered (the pneumatic pump rises during ventilation). After the cylinder plug rod is lowered, the electric valves 1#, 3#, and 6# are activated and begin normal operation.

[0043] In this embodiment, the operating cycle is set to 30-60 days. When the set SV1 = 30 days is reached, an alarm is triggered. The user presses the Read button to release the SV1 alarm and start manual backwashing of the filter. In the automatic mode, when the set number of days is reached, the filter is automatically backwashed. Based on the set operating range of SV1 = 30-60 days, the filter is backwashed by closing electric valves 1# and 3# and opening valves 2# and 4#. Automatic flushing of scrap iron is completed in approximately 1 minute.

[0044] Subsequently, flush the iron-containing debris in the entire device, close valves 3# and 6#, open valve 8#, start ventilation, and raise the pneumatic pump.

[0045] After the lifting is completed, open the 5# valve for 2 minutes, automatically open the 7# valve, and close the 5# valve at the same time, inflate and purge for 2 minutes. This is one cycle. The subsequent automatic cycle is three times, and the flushing is considered complete.

[0046] After flushing is completed, close valve 8# and valve 2#, open valve 1#, valve 3#, valve 6#, close valve 9#, the pneumatic pump is lowered, the touch screen resets SV1, restarts the timing, and starts a new normal operation.

[0047] The touch screen requirements are as follows:

[0048] 1. Each valve is not fully closed or fully opened, and an alarm prompt and record is given (alarm pop-up window);

[0049] 2. System start button, system stop button, manual / stop / automatic selection;

[0050] 3. 1-11 valve start button, 1-11 valve stop button;

[0051] 4. Time setting SV1-4 (Note: When SV1 reaches the set 30 days, the upper limit of SV1 is 60 days, an alarm prompt will be issued, and the user can click the "read" button to release the SV1 alarm);

[0052] 5. Reset button (recalculate the number of days);

[0053] 6. System simulation linkage device diagram;

[0054] 7. Record the number of cycles.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as the scope of protection of the present invention.

Claims

1. An energy-saving oil filtering and iron chip removing device, comprising an oil tank (1), wherein the oil tank is provided with an oil inlet, an oil outlet and a slag discharge port, and is characterized in that: It also includes a flange (3) mounted on the top of the oil tank and an air inlet arranged on the side of the oil tank; A plurality of sheath pipes (6) are fixedly connected to the flange in the direction of the flange surface running longitudinally therethrough, and a magnetic bar lifting mechanism is provided above the flange; The magnetic rod lifting mechanism comprises a cylinder (11), a lifting panel (10), and a plurality of magnetic rods (7) fixed below the lifting panel and adapted to be inserted into the sheath tube. The lifting panel is connected to a movable plug rod of the cylinder.

2. The energy-saving oil filtering and iron chip removing device according to claim 1 is characterized in that: The air inlet comprises a first air inlet (4) provided with a first air inlet duct (4-1) and a second air inlet (5) provided with a second air inlet duct (5-1), wherein the first air inlet duct is uniformly distributed along a busbar direction of a circumferential inner wall of the oil tank; the second air inlet duct is arranged at the center of the oil tank and is parallel to the first air inlet duct, and air outlet holes are distributed on the first air inlet duct and the second air inlet duct.

3. The energy-saving oil filtering and iron chip removing device according to claim 1 is characterized in that: There are two cylinders, which are symmetrically arranged at 180 degrees on the outside of the oil tank, and the movable plug rods of the two cylinders are respectively connected to the lifting panel.

4. The energy-saving oil filtering and iron chip removing device according to claim 1 is characterized in that: The sheath tube is fixed on the flange in the shape of an equilateral triangle.

5. The energy-saving oil filtering and iron chip removing device according to claim 4 is characterized in that: The sheath pipe and the flange are sealed and welded by using nuts and gaskets.

6. The energy-saving oil filtering and iron chip removing device according to claim 1 is characterized in that: The top of the sheath tube is open to facilitate the insertion of the magnetic rod, and the bottom of the sheath tube is a sealing structure.

7. The energy-saving oil filtering and iron chip removing device according to claim 2, characterized in that: The oil inlet pipe is provided with a first oil inlet valve, a drain valve, a filter, an air inlet valve and a second oil inlet valve in sequence; When the oil tank is in normal working condition, the first oil inlet valve and the second oil inlet valve are opened, and the drain valve and the air inlet valve are closed; When the oil tank is in the impurity removal working state, the first oil inlet valve and the second oil inlet valve are closed, and the sewage valve and the air inlet valve are opened to reversely flush the filter screen.

8. The energy-saving oil filtering and iron chip removing device according to claim 7, characterized in that: The oil outlet, the slag discharge port, the first air inlet, and the second air inlet are all provided with control valves.

9. The energy-saving oil filtering and iron chip removing device according to claim 8, characterized in that: It also includes a PLC control system, which is communicatively connected to the cylinder, the first oil inlet valve, the second oil inlet valve, the sewage valve, and the oil outlet, the slag outlet, and the control valves of the first air inlet and the second air inlet.

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