A detection device for oil mist separator and a method of using the same

Abstract

The present invention relates to a detection device for an oil mist separator and a method for using the same, and to the technical field of oil mist separator detection equipment, which includes an oil tank, an air outlet is provided on the top of the oil tank, an oil mist separator is connected to the air outlet, a smoke concentration detector is connected to the output end of the oil mist separator, the oil tank includes an oil fume generating area and an oil fume discharging area, a partition is provided between the oil fume generating area and the oil fume discharging area; an electric heating pipe is provided in the middle of the oil fume generating area, oil injection pipes are provided on both sides of the oil fume generating area along its length direction, the oil injection pipes are connected to an oil injection device, a nozzle is provided toward the electric heating pipe, an air intake pipe is provided below the two oil injection pipes, the air intake pipes are connected to an air intake device, and an air supply device is provided on the side wall of the oil fume discharging area. The present invention has the effects of increasing the formation speed of oil fume and the utilization rate of oil, while reducing the oil entering the oil mist separator, and increasing the accuracy of oil mist separator detection.

Description

Technical Field

[0001] The present invention relates to the technical field of oil mist separator detection equipment, and in particular to a detection device for an oil mist separator and a use method thereof. Background Art

[0002] Oil mist separator, also known as oil mist recovery machine, oil mist collector, just called differently. Oil mist separator is installed on CNC machining center, cleaning machine, die casting machine, CNC lathe and other machining equipment to absorb oil mist in the machining chamber to purify the air and protect the health of workers. Before the oil mist separator is officially used, it is necessary to test the various performance indicators of oil mist separation. The traditional oil mist separation experiment is conducted on-site by the user, with a long test cycle and poor results.

[0003] A Chinese patent with announcement number CN205859559U discloses an oil mist generating device for oil and gas experiments, including a closed oil tank, wherein the upper surface of the oil tank is provided with a refueling port and an oil and gas outlet connected to the oil and gas test port; a sewage discharge pipeline is provided at the bottom of the side of the oil tank; an oil mist generator is installed on the oil tank, and the oil mist generator is connected to an oil suction pipe extending below the oil liquid level, and a pump is installed on the oil suction pipe; and an air replenishing valve is installed on the oil tank.

[0004] The above scheme has the following defects: the nozzle sprays oil toward the heating tube, the oil is atomized into oil gas, the oil gas fills the upper cavity of the oil, and under the action of the air supply valve, it flows from the oil gas outlet to the oil gas test port, but the amount of oil sprayed is large, and it is difficult for the heating tube to convert all the oil into oil smoke, a large amount of oil is wasted and accumulated at the bottom of the oil tank. At the same time, the oil splashed everywhere is also easy to enter the oil mist separator with the oil gas, affecting the work of the oil mist separator and causing inaccurate detection. Summary of the invention

[0005] In view of the shortcomings of the prior art, one of the objects of the present invention is to provide a detection device for an oil mist separator, which has the effect of increasing the formation speed of oil smoke and the utilization rate of oil, while reducing the oil entering the oil mist separator, thereby improving the accuracy of oil mist separator detection.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A detection device for an oil mist separator comprises an oil tank, a gas outlet is arranged on the top of the oil tank, the gas outlet is connected to the oil mist separator, the output end of the oil mist separator is connected to a smoke concentration detector, the oil tank comprises an oil fume generation area and an oil fume discharge area, a partition is arranged between the oil fume generation area and the oil fume discharge area, an oil fume intercommunication area is arranged on the top of the partition, and the gas outlet is located above the oil fume discharge area;

[0008] An electric heating pipe is provided in the middle of the oil fume generating area, and oil filling pipes are provided on both sides of the oil fume generating area along its length direction, and the oil filling pipes are connected with an oil filling device. A nozzle is provided on the oil filling pipe facing the electric heating pipe, and air intake pipes are provided under the two oil filling pipes, and the air intake pipes are connected with an air intake device. An air supply device is provided on the side wall of the oil fume discharge area.

[0009] By adopting the above technical scheme, the oil filling pipe sprays out oil, and the air inlet pipe sprays out compressed air to blow and atomize the oil. The high temperature generated by the electric heating tube converts the oil mist into oil smoke. The oil smoke enters the oil smoke exhaust area from the oil smoke interconnection area, and then enters the oil mist separator through the air outlet. After being filtered by the oil mist separator, it enters the smoke concentration detector for detection. The oil mist is generated in the oil smoke generating area. Due to the isolation of the partition, the oil splashed everywhere is difficult to enter the oil mist separator, which improves the accuracy of the oil mist separator detection. At the same time, the compressed air sprayed from the jet pipe blows the oil away, increases the contact area between the oil and the high-temperature air, and improves the formation rate of oil smoke.

[0010] In a preferred example, the present invention can be further configured as follows: the oil injection device includes an oil barrel, the oil barrel is connected to an oil outlet pipe, one end of the oil outlet pipe is located at the bottom of the oil barrel, the end of the oil outlet pipe away from the oil barrel is provided with a third tee pipe, the two ends of the third tee pipe away from the oil outlet pipe are respectively connected to a first oil pipe and a second oil pipe, the first oil pipe and the second oil pipe are respectively connected to the two oil injection pipes, and the first oil pipe and the second oil pipe are respectively provided with a first pressure gauge and a second pressure gauge;

[0011] The oil barrel is also connected with an air injection pipe, and the air injection pipe is connected with the air intake device.

[0012] By adopting the above technical solution, the air inlet pipe injects air into the oil barrel to increase the air pressure in the oil barrel, thereby pressing the oil in the oil barrel into the oil outlet pipe and then into the two oil filling pipes through the third three-way pipe.

[0013] In a preferred example, the present invention can be further configured as follows: the air intake device includes an air compressor, the air compressor is connected to the air outlet pipe, a first three-way pipe is provided at one end of the air outlet pipe away from the air compressor, and two ends of the first three-way pipe away from the blowpipe are respectively connected to a first main pipe and a second main pipe;

[0014] A first solenoid valve and a second solenoid valve are respectively provided on the side walls of the oil tank, the first main pipe and the second main pipe are respectively connected to the first solenoid valve and the second solenoid valve, an end of the first solenoid valve away from the first main pipe is connected to the gas injection pipe, an end of the second solenoid valve away from the second main pipe is connected to a third main pipe, an end of the third main pipe away from the second solenoid valve is connected to a second three-way pipe, two ends of the second three-way pipe away from the second solenoid valve are respectively connected to a first branch pipe and a second branch pipe, and the first branch pipe and the second branch pipe are respectively connected to the two intake pipes.

[0015] By adopting the above technical solution, compressed air flows out from the air compressor and enters the oil barrel and the oil tank respectively. The compressed air entering the oil barrel can be controlled by the first solenoid valve, thereby controlling the oil filling of the oil filling pipe; the compressed air entering the oil tank is controlled by the second solenoid valve, thereby controlling the atomization of the oil.

[0016] In a preferred example, the present invention can be further configured as follows: an inclined plate is arranged at an angle at the bottom of the oil fume generating area along its width direction, the portion of the inclined plate close to the oil barrel is lower in height, the inclined plate is in contact with the partition, and an oil drain pipe is arranged at the bottom of the oil fume generating area.

[0017] By adopting the above technical solution, the oil dripping from the oil fume generating area is gradually accumulated on the inclined plate and discharged from the oil drain pipe along the inclined plate.

[0018] In a preferred example, the present invention can be further configured as follows: an oil inlet pipe is provided on the side wall of the oil barrel, a funnel is provided at the end away from the oil barrel, the funnel is located below the oil outlet pipe, and a flow control valve is provided on the oil discharge pipe.

[0019] By adopting the above technical solution, the oil flowing out of the oil outlet pipe falls into the funnel and then enters the oil barrel, thereby realizing the recycling of the oil.

[0020] In a preferred example, the present invention can be further configured as follows: the oil mist separator is connected to an oil return pipe, one end of the oil return pipe away from the oil mist separator is connected to an oil return barrel, and the oil return barrel is connected to the funnel.

[0021] By adopting the above technical solution, the oil return pipe recovers the oil filtered by the oil mist separator into the oil return barrel, and then inputs it into the oil barrel through the oil supply pipe, thereby realizing the recycling of oil and reducing the waste of resources.

[0022] In a preferred example, the present invention can be further configured as follows: a heat exchange tube is provided at the bottom of the inclined plate, the heat exchange tube is S-shaped and surrounds the bottom of the inclined plate, one end of the heat exchange tube is respectively connected to a water inlet pipe and a first water outlet pipe, and the first water outlet pipe is spirally surrounded on the outer wall of the oil filling pipe.

[0023] By adopting the above technical solution, the first water outlet pipe absorbs the heat of the residual oil on the inclined plate, and then transfers the heat to the oil filling pipe to preheat the oil, thereby improving the utilization rate of heat and reducing energy waste.

[0024] In a preferred example, the present invention can be further configured as follows: a second water outlet pipe is provided at one end of the heat exchange tube away from the water inlet pipe, and the second water outlet pipe extends out of the oil tank away from one end of the heat exchange tube and spirally surrounds the outer wall of the oil barrel.

[0025] By adopting the above technical solution, the second water outlet pipe transfers the heat from the residual oil to the oil drum, preheats the oil in the oil drum, improves the utilization rate of heat, and reduces energy waste.

[0026] In a preferred example, the present invention can be further configured as follows: one end of the heat exchange tube away from the water inlet pipe is also connected to a third water outlet pipe, and the third water outlet pipe surrounds the outer wall of the oil return barrel.

[0027] By adopting the above technical solution, the third water outlet pipe transfers the heat from the residual oil to the oil return drum, preheats the oil in the oil return drum, improves the utilization rate of heat, and reduces energy waste.

[0028] Another object of the present invention is to provide a method for using a detection device for an oil mist separator, which has the effect of accurately detecting the filtering performance of the oil mist separator in a safe and reliable manner.

[0029] The above technical objectives of the present invention are achieved through the following technical solutions:

[0030] A method for using the detection device for an oil mist separator according to any one of claims 1 to 9, characterized in that:

[0031] Step 1: Start the electric heating tube to heat the smoke generating area, then turn on the air compressor, and open the first solenoid valve and the second solenoid valve at the same time. The oil barrel supplies oil to the two oil filling pipes, and the second main pipe supplies air to the two air injection pipes. The compressed air blows and atomizes the oil, and the electric heating tube turns the oil mist into oil smoke. At this time, turn on the oil mist separator, and turn on the air supply device at the same time to guide the oil smoke into the oil mist separator. The air filtered by the oil mist separator is tested by the smoke concentration detector;

[0032] Step 2: After the test is completed, close the second solenoid valve and stop filling the oil. At this time, the air intake pipe continues to inject air, and the oil mist separator continues to extract air to cool the oil tank;

[0033] Step 3: After the temperature in the oil tank drops to the preset temperature, close the oil mist separator, the second solenoid valve and the compressed air machine, open the flow control valve, and the oil at the bottom of the oil tank flows into the oil barrel through the funnel.

[0034] Through the above scheme, the filtering performance of the oil mist separator can be accurately measured to reduce the possibility of safety accidents during the measurement process.

[0035] In summary, the present invention includes at least one of the following beneficial technical effects:

[0036] 1. The setting of partitions, air intake pipes and electric heating pipes can increase the speed of oil fume formation and the utilization rate of oil, while reducing the amount of oil entering the oil mist separator and improving the accuracy of oil mist separator detection;

[0037] 2. Through the setting of the first solenoid valve and the second solenoid valve, the oil filling pipe and the air intake pipe can be controlled to be open and closed, thereby achieving the effect of sequential control;

[0038] 3. Through the arrangement of heat exchange tubes, water inlet pipes and water outlet pipes, the heat of the residual oil on the inclined plate can be absorbed, and then the heat can be transferred to the oil filling pipe to preheat the oil, so as to reuse the residual heat and reduce the waste of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0040] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A in the middle.

[0041] Figure 3 yes Figure 1 A partial enlarged schematic diagram of part B in the middle.

[0042] Figure 4 It is a schematic diagram of the structure of the oil discharge pipe, the oil inlet pipe and the oil supply pipe in this embodiment.

[0043] Figure 5 yes Figure 4 A partial enlarged schematic diagram of part C in the middle.

[0044] Figure 6 It is a schematic diagram of the cross-section structure used to illustrate the spray head and the nozzle in this embodiment.

[0045] Figure 7 yes Figure 6 A partial enlarged schematic diagram of part D in the middle.

[0046] In the figure, 2, oil tank; 21, air outlet; 22, oil mist separator; 221, oil return pipe; 222, oil return barrel; 223, oil supply pipe; 2231, third flow control valve; 23, smoke concentration detector; 24, oil fume generating area; 241, electric heating pipe; 242, oil filling pipe; 2421, nozzle; 243, air inlet pipe; 2431, nozzle; 25, oil fume discharge area; 26, partition; 261, oil fume intercommunication area; 28, inclined plate; 281, oil discharge pipe; 282, heat exchange pipe; 2821, water inlet pipe; 2822, water pump; 2823, first water outlet pipe; 2824, second water outlet pipe; 2825, third water outlet pipe; 2811, first Flow control valve; 3. Oil filling device; 31. Oil drum; 311. Oil inlet pipe; 3111. Second flow control valve; 312. Funnel; 32. Oil outlet pipe; 33. Third three-way pipe; 331. First oil pipe; 3311. First pressure gauge; 332. Second oil pipe; 3321. Second pressure gauge; 34. Air injection pipe; 4. Air intake device; 41. Air compressor; 42. Air outlet pipe; 43. First three-way pipe; 431. First main pipe; 4311. First solenoid valve; 432. Second main pipe; 4321. Second solenoid valve; 4322. Third main pipe; 4323. Second three-way pipe; 4324. First branch pipe; 4325. Second branch pipe; 5. Air replenishing device. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0048] Embodiment 1:

[0049] Reference Figure 1 and Figure 6 , is a detection device for an oil mist separator disclosed in the present invention, comprising an oil tank 2 and an oil mist separator 22, wherein a partition 26 is provided in the oil tank 2, and an oil fume generating area 24 and an oil fume discharging area 25 are respectively provided at both ends of the partition 26, and an oil fume generating area 24 is provided with an oil injection pipe 242 along its length direction for oil injection, and an electric heating pipe 241 is provided in the middle of the oil fume generating area 24 for heating to form oil fume; an oil fume intercommunication area 261 is provided above the partition 26 for transferring oil fume from the oil fume generating area 24 to the oil fume discharging area 25; and the top of the oil fume discharging area 25 is connected to the oil mist separator 22 for discharging oil fume. The oil mist separator 22 is connected to a smoke concentration detector 23 for detecting the oil fume filtered by the oil mist separator 22, and then detecting the filtering performance of the oil mist separator 22. An air supply device 5 is also provided on the side wall of the oil fume discharging area 25 for assisting the oil fume to enter the oil mist separator 22.

[0050] Reference Figure 1 and Figure 7, a nozzle 2421 is provided on the oil filling pipe 242 facing the electric heating pipe 241, and the nozzle 2421 can be an oil mist nozzle 2421LMV210-35 produced by SMC. The ends of the two oil filling pipes 242 away from the electric heating pipe 241 are connected to the oil filling device 3, and the oil filling device 3 includes an oil barrel 31, and the oil barrel 31 is respectively connected to the air injection pipe 34 and the oil outlet pipe 32. One end of the oil outlet pipe 32 is located in the oil barrel 31 and abuts against the bottom of the oil barrel 31. When the air injection pipe 34 is injected with air, the air pressure in the oil barrel 31 increases, forcing the oil to enter the oil outlet pipe 32. The other end of the oil outlet pipe 32 is connected to the third three-way pipe 33, and the other two ends of the third three-way pipe 33 are respectively connected to the first oil pipe 331 and the second oil pipe 332. The first oil pipe 331 and the second oil pipe 332 are respectively connected to the two oil filling pipes 242, and the oil in the oil barrel 31 is injected into the oil filling pipe 242. The first oil pipe 331 and the second oil pipe 332 are respectively provided with a first pressure gauge 3311 and a second pressure gauge 3321 for detecting the oil pressure of the first oil pipe 331 and the second oil pipe 332 .

[0051] Reference Figure 1 and Figure 2 The two oil injection pipes 242 are provided with air inlet pipes 243 below, which are used to blow away the oil sprayed from the nozzle 2421, so that the electric heating pipe 241 can gasify it. The air inlet pipe 243 is provided with a conical nozzle 2431 facing the electric heating pipe 241, which is used to increase the speed of the sprayed compressed air and improve the dispersion of the oil. The end of the air inlet pipe 243 away from the electric heating pipe 241 passes through the oil tank 2 and is connected to the air inlet device 4. The air inlet device 4 includes an air compressor 41, and the air compressor 41 is connected to an air outlet pipe 42. The end of the air outlet pipe 42 away from the air compressor 41 is provided with a first three-way pipe 43, and the other two ends of the first three-way pipe 43 are respectively connected to a first main pipe 431 and a second main pipe 432. The end of the first main pipe 431 away from the first three-way pipe 43 is connected to a first solenoid valve 4311 installed on the side wall of the oil tank 2. The other end of the first solenoid valve 4311 is connected to the air injection pipe 34, which is used to control the opening and closing of the air injection pipe 34. A second solenoid valve 4321 is provided at the other end of the second main pipe 432, and a second main pipe 432 is provided inside the other end of the second solenoid valve 4321. A second three-way pipe 4323 is provided at one end of the second main pipe 432 away from the second solenoid valve 4321, and the other two ends of the second three-way pipe 4323 are respectively connected to a first branch pipe 4324 and a second branch pipe 4325, which are respectively connected to two intake pipes 243. The second solenoid valve 4321 is used to control the opening and closing of the intake pipe 243.

[0052] Reference Figure 5 and Figure 6The bottom of the oil fume generating area 24 is provided with an inclined plate 28 inclined along the width direction of the oil fume generating area 24, and the height of the inclined plate 28 near the oil barrel 31 is lower, which is used to collect the oil dripping from the oil mist generating area 24. The inclined plate 28 is in contact with the partition 26. The bottom of the oil fume generating area 24 is also provided with an oil drain pipe 281 for draining the oil, and the oil drain pipe 281 is provided with a first flow control valve 2811, which is used to close the oil drain pipe 281 when the oil fume generating area 24 is working, so as to reduce the possibility of oil fume leakage. An oil inlet pipe 311 is also provided on the side of the oil barrel 31. A funnel 312 is provided at the end of the oil inlet pipe 311 away from the oil barrel 31. The funnel 312 is located below the oil drain pipe 281 and is used to guide the oil discharged from the oil drain pipe 281 into the oil inlet pipe 311. A second flow control valve 3111 is provided on the oil inlet pipe 311 to reduce air pressure leakage when the oil barrel 31 is working, which may result in the inability to supply oil to the oil filling pipe 242.

[0053] Reference Figure 6 The oil mist separator 22 is also connected to an oil return pipe 221, and one end of the oil return pipe 221 away from the oil mist separator 22 is connected to an oil return barrel 22231. An oil supply pipe 223 is provided on the side wall of the oil return barrel 22231. The oil supply pipe 223 is connected to the oil inlet pipe 311, and a third flow control valve 2231 is provided on the oil supply pipe 223 to reduce the possibility of oil entering the oil pipe 311 and overflowing when the oil mist separator 22 is working.

[0054] See also Figure 1 and Figure 6 The bottom of the inclined plate 28 is arranged in an S shape with a heat exchange tube 282 for absorbing the heat of the residual oil above the inclined plate 28. One end of the heat exchange tube 282 is connected to a water inlet pipe 2821, and the water inlet pipe 2821 is pumped by a water pump 2822; the other end of the heat exchange tube 282 is provided with a first water outlet pipe 2823, a second water outlet pipe 2824 and a third water outlet pipe 2825. The first water outlet pipe 2823 passes through the inclined plate 28 and surrounds the outer wall of the oil filling pipe 242 to preheat the oil in the oil filling pipe 242. The second water outlet pipe 2824 passes through the oil tank 2 and spirally surrounds the outer wall of the oil barrel 31 to preheat the oil in the oil barrel 31, which is conducive to the formation of oil smoke, improves the utilization rate of heat, and reduces energy waste. The third water outlet pipe 2825 passes through the oil tank 2 and spirally surrounds the outer wall of the oil return barrel 22231 to preheat the oil in the oil return barrel 22231, making full use of the heat of the residual oil on the inclined plate 28 to reduce energy waste.

[0055] The implementation process of the above embodiment is as follows: the air compressor 41 is started, and the compressed air passes through the first solenoid valve 4311 into the air injection pipe 34, so that the oil barrel 31 injects oil into the oil injection pipe 242, and the oil is sprayed from the nozzle 2421 to the electric heating tube 241. At the same time, the compressed air passes through the first solenoid valve 4311 into the air intake pipe 243, and the oil mist sprayed from the nozzle 2421 is blown away, so that the electric heating tube 241 heats the oil to produce oil smoke, and the oil smoke passes through the oil smoke interconnection area 261, and enters the oil mist separator 22 with the assistance of the air supply device 5, and the remaining air is filtered and enters the smoke concentration detector 23.

[0056] Embodiment 2:

[0057] The present invention discloses a method for using a detection device for an oil mist separator, comprising the following steps:

[0058] Step 1: Start the electric heating tube 241 to heat the smoke generating area, then turn on the air compressor 41, and simultaneously open the first solenoid valve 4311 and the second solenoid valve 4321, the oil barrel 31 supplies oil to the two oil injection tubes 242, and the second main tube 432 supplies air to the two air injection tubes 34, the compressed air blows and atomizes the oil, and the electric heating tube 241 turns the oil mist into oil smoke, at this time, turn on the oil mist separator 22, and at the same time turn on the air supply device 5, and guide the oil smoke into the oil mist separator 22, and the air filtered by the oil mist separator 22 is detected by the smoke concentration detector 23;

[0059] Step 2: After the detection is completed, the second solenoid valve 4321 is closed to stop the oil injection. At this time, the air inlet pipe 243 continues to inject air, and the oil mist separator 22 continues to extract air to cool the oil tank 2;

[0060] Step 3: After the temperature in the oil tank 2 drops to the preset temperature, close the oil mist separator 22, the second solenoid valve 4321 and the air compressor 41, open the first flow control valve 2811, and the oil at the bottom of the oil tank 2 flows into the oil barrel 31 through the funnel 312.

[0061] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for an oil mist separator, comprising an oil tank (2), wherein the top of the oil tank (2) is provided with an air outlet (21), the air outlet (21) is connected to an oil mist separator (22), and the output end of the oil mist separator (22) is connected to a smoke concentration detector (23), characterized in that: The oil tank (2) comprises an oil fume generating area (24) and an oil fume discharging area (25), a partition (26) is provided between the oil fume generating area (24) and the oil fume discharging area (25), an oil fume intercommunication area (261) is provided on the top of the partition (26), and the air outlet (21) is located above the oil fume discharging area (25); An electric heating pipe (241) is provided in the middle of the oil fume generating area (24), oil injection pipes (242) are provided on both sides of the oil fume generating area (24) along its length direction, the oil injection pipes (242) are connected to an oil injection device (3), the oil injection pipes (242) are provided with nozzles facing the electric heating pipe (241), air intake pipes (243) are provided below the two oil injection pipes (242), the air intake pipes (243) are connected to an air intake device (4), and an air supply device (5) is provided on the side wall of the oil fume discharging area (25); The oil injection device (3) comprises an oil barrel (31), the oil barrel (31) is connected to an oil outlet pipe (32), an oil inlet pipe (311) is provided on the side wall of the oil barrel (31), a funnel (312) is provided at one end of the oil inlet pipe (311) away from the oil barrel (31), and the funnel (312) is located below the oil outlet pipe (32); one end of the oil outlet pipe (32) located at the oil barrel (31) is located at the bottom of the oil barrel (31), and the oil outlet pipe (32) A third three-way pipe (33) is provided at one end away from the oil barrel (31); two ends of the third three-way pipe (33) away from the oil outlet pipe (32) are respectively connected to a first oil pipe (331) and a second oil pipe (332); the first oil pipe (331) and the second oil pipe (332) are respectively connected to the two oil injection pipes (242); and a first pressure gauge (3311) and a second pressure gauge (3321) are respectively provided on the first oil pipe (331) and the second oil pipe (332); The oil barrel (31) is also connected to an air injection pipe (34), and the air injection pipe (34) is connected to the air intake device (4); The air intake device (4) comprises an air compressor (41), the air compressor (41) is connected to an air outlet pipe (42), one end of the air outlet pipe (42) away from the air compressor (41) is provided with a first three-way pipe (43), and two ends of the first three-way pipe (43) away from the air outlet pipe (42) are respectively connected to a first main pipe (431) and a second main pipe (432); A first solenoid valve (4311) and a second solenoid valve (4321) are respectively provided on the side wall of the oil tank (2); the first main pipe (431) and the second main pipe (432) are respectively connected to the first solenoid valve (4311) and the second solenoid valve (4321); an end of the first solenoid valve (4311) away from the first main pipe (431) is connected to the gas injection pipe (34); an end of the second solenoid valve (4321) away from the second main pipe (432) is connected to a third main pipe (4322); an end of the third main pipe (4322) away from the second solenoid valve (4321) is connected to a second three-way pipe (4323); two ends of the second three-way pipe (4323) away from the second solenoid valve (4321) are respectively connected to a first branch pipe (4324) and a second branch pipe (4325); the first branch pipe (4324) and the second branch pipe (4325) are respectively connected to the two intake pipes (243); The bottom of the oil fume generating area (24) is provided with an inclined plate (28) inclined along its width direction, the height of the portion of the inclined plate (28) close to the oil barrel (31) is relatively low, the inclined plate (28) is in contact with the partition (26), the bottom of the oil fume generating area (24) is provided with an oil drain pipe (281), and the oil drain pipe (281) is provided with a first flow control valve (2811); the bottom of the inclined plate (28) is provided with a heat exchange pipe (282), the heat exchange pipe (282) is S-shaped and surrounds the bottom of the inclined plate (28), one end of the heat exchange pipe (282) is respectively connected with a water inlet pipe (2821) and a first water outlet pipe (2823), and the first water outlet pipe (2823) is spirally surrounded on the outer wall of the oil injection pipe (242); The oil mist separator (22) is connected to an oil return pipe (221), one end of the oil return pipe (221) away from the oil mist separator (22) is connected to an oil return barrel (222), and the oil return barrel (222) is connected to the funnel (312).

2. The detection device for an oil mist separator according to claim 1, characterized in that: A second water outlet pipe (2824) is also provided at one end of the heat exchange pipe (282) away from the water inlet pipe (2821); the second water outlet pipe (2824) extends out of the oil tank (2) at one end of the heat exchange pipe (282) away from the water inlet pipe (2821) and spirally surrounds the outer wall of the oil barrel (31).

3. The detection device for an oil mist separator according to claim 2, characterized in that: One end of the heat exchange tube (282) away from the water inlet pipe (2821) is also connected to a third water outlet pipe (2825), and the third water outlet pipe (2825) surrounds the outer wall of the oil return barrel (222).

4. A method for using the detection device for an oil mist separator according to any one of claims 1 to 3, characterized in that: Step 1: Start the electric heating tube (241) to heat the smoke generating area, then turn on the air compressor (41), and simultaneously open the first solenoid valve (4311) and the second solenoid valve (4321), the oil barrel (31) supplies oil to the two oil injection tubes (242), and the second main tube (432) supplies air to the two air injection tubes (34), the compressed air blows and atomizes the oil, and the electric heating tube (241) turns the oil mist into oil smoke, then turn on the oil mist separator (22), and at the same time turn on the air supply device (5), and guide the oil smoke into the oil mist separator (22), and the air filtered by the oil mist separator (22) is tested by the smoke concentration detector (23); Step 2: After the test is completed, the second solenoid valve (4321) is closed and the oil injection is stopped. At this time, the air inlet pipe (243) continues to inject air, and the oil mist separator (22) continues to extract air to cool the oil tank (2); Step 3: After the temperature in the oil tank (2) drops to a preset temperature, the oil mist separator (22), the second solenoid valve (4321) and the air compressor (41) are closed, and the first flow control valve (2811) is opened, and the oil at the bottom of the oil tank (2) flows into the oil barrel (31) through the funnel (312).

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