Aerosol misting oil tank

Abstract

The novel aerosol misting oil tank provided by the present invention is connected to the compressed air source by arranging a regulating valve at the right end of the clean air inlet nozzle, so that the pressure and flow rate of the air flowing through the clean air inlet nozzle can be adjusted by the regulating valve, and the required oil mist can be continuously adjusted to high concentration and low concentration before detecting the high-efficiency filter, and the air intake pressure and flow rate of the air inlet are controlled to make the oil mist flow smoothly in the box, and by arranging a filter baffle, the oil mist is filtered before passing through the oil mist outlet nozzle, so that the oil mist particles with a particle size of about 0.3um are evenly passed through the baffle and sprayed out by the oil mist outlet nozzle, and the oil mist blocked by the filter baffle is condensed and falls back into the box for reuse. By arranging the filter baffle, the present invention can maintain good consistency for oil mists of different particle sizes, will not have an adverse effect on the overall detection system, prevents the oil mist backflow phenomenon, has a stable misting effect, and is easy to adjust the oil mist concentration, which can greatly improve the accuracy of the photometer leak detection method.

Description

Technical Field

[0001] The invention relates to the field of aerosol misting equipment, in particular to a novel aerosol misting oil tank. Background Art

[0002] Currently, leakage rate detection of high efficiency filters or ultra-high efficiency filters is generally divided into two types: particle counter method and photometer and aerosol generator detection method.

[0003] Since the counter method needs to be used in conjunction with a diluter and the detection technology is immature, it is difficult to promote. In terms of scope of use, the photometer method has a wider range of use.

[0004] The aerosol generator is an indispensable device in the photometer leak detection system. It is mainly used to generate oil mist upstream of the high-efficiency filter to test the filter leakage rate. The aerosol misting oil tank is the core component of the aerosol generator. The existing aerosol misting oil tank has at least the defects of unstable misting effect and difficult to adjust the oil mist concentration, which seriously affects the performance of the aerosol generator and reduces the accuracy of the photometer leak detection method. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a novel aerosol misting oil tank, which has a stable misting effect, is easy to adjust the oil mist concentration, and can greatly improve the accuracy of the photometer leak detection method.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is a novel aerosol misting oil tank, comprising:

[0007] A box body, wherein two air inlets are provided on the upper part of the right side wall of the box body, an air outlet is provided on the upper part of the left side wall of the box body, a refueling port is provided on the top plate of the box body, and a detachable fuel tank cap is provided on the refueling port;

[0008] A clean air inlet nozzle, the clean air inlet nozzle is arranged at the air inlet, the left end of the clean air inlet nozzle extends into the box body, and the clean air inlet nozzle is sealed and connected to the right side wall of the box body;

[0009] An oil mist outlet nozzle, the oil mist outlet nozzle is arranged at the air outlet, and the oil mist outlet nozzle is sealed and connected to the left side wall of the box body;

[0010] A Laskin nozzle, the Laskin nozzle is connected to the left end of the clean air inlet nozzle through an oil-resistant pipe, the Laskin nozzle is arranged in a vertical direction, the Laskin nozzle comprises a hollow copper tube, a flange cover connected to the lower end of the hollow copper tube, the middle part of the flange cover protrudes downward to form a cylindrical protrusion, the protrusion is provided with a plurality of through holes for generating oil mist, and the through holes are located below the clean air inlet nozzle and the oil mist outlet nozzle;

[0011] The side wall of the box body is also provided with an observation window for viewing the liquid level in the box body, through which the flange cover and a part of the hollow copper tube can be seen;

[0012] The box body is also provided with a filter baffle, which is arranged near the air outlet. The oil mist in the box body is filtered by the filter baffle and then discharged from the oil mist outlet nozzle through the air outlet.

[0013] The right end of the clean air inlet nozzle is connected to a compressed air source through a regulating valve, and the regulating valve is used to adjust the air pressure and flow rate passing through the clean air inlet nozzle.

[0014] Preferably, there are four through holes, and the through holes are evenly distributed on the outer circumferential surface of the protrusion.

[0015] Preferably, the through hole is located on the bottom surface and the outer circumferential surface of the protrusion.

[0016] Preferably, the inner diameter of the through hole is 0.8-1.2 mm.

[0017] Preferably, the inner diameter of the oil mist outlet nozzle is 12-17 mm.

[0018] Further preferably, the inner diameter of the hollow copper tube is 5-9 mm.

[0019] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0020] The novel aerosol misting oil tank provided by the present invention is connected to the compressed air source by arranging a regulating valve at the right end of the clean air inlet nozzle, so that the pressure and flow rate of the air flowing through the clean air inlet nozzle can be adjusted by the regulating valve, and the required oil mist can be continuously adjusted to high concentration and low concentration before detecting the high-efficiency filter, and the air intake pressure and flow rate of the air inlet are controlled to make the oil mist flow smoothly in the box, and by arranging a filter baffle, the oil mist is filtered before passing through the oil mist outlet nozzle, so that the oil mist particles with a particle size of about 0.3um are evenly passed through the baffle and sprayed out by the oil mist outlet nozzle, and the oil mist blocked by the filter baffle is condensed and falls back into the box for reuse. By arranging the filter baffle, the present invention can maintain good consistency for oil mists of different particle sizes, will not have an adverse effect on the overall detection system, prevents the oil mist backflow phenomenon, has a stable misting effect, and is easy to adjust the oil mist concentration, which can greatly improve the accuracy of the photometer leak detection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view schematic diagram of the present invention.

[0022] Figure 2 It is a right side schematic diagram of the present invention.

[0023] Figure 3 It is a cross-sectional schematic diagram of the Laskin nozzle in the present invention.

[0024] Among them: 100. Box body; 101. Fuel tank cover; 102. Observation window; 103. Oil drain cap; 200. Clean air inlet nozzle; 201. Regulating valve; 300. Oil mist outlet nozzle; 400. Laskin nozzle; 401. Hollow copper tube; 402. Flange cover; 4021. Protrusion; 4022. Through hole; 500. Filter baffle; 600. Oil-resistant pipe. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] The up and down directions described in the present invention refer to Figure 2 The up and down directions in the present invention refer to the left and right directions. Figure 2 left and right direction in center.

[0027] like Figure 1-3As shown, the novel aerosol misting oil tank provided by the present invention comprises: a box body 100, a clean air inlet nozzle 200, an oil mist outlet nozzle 300, a Laskin nozzle 400, a filter baffle 500, and an oil-resistant pipe 600, wherein two air inlets are provided on the upper part of the right side wall of the box body 100, the clean air inlet nozzle 200 is arranged at the air inlet, the left end of the clean air inlet nozzle 200 extends into the box body 100, and the clean air inlet nozzle 200 is sealed and connected to the right side wall of the box body 100; the box body 100 An air outlet is provided on the upper part of the left wall of the box 100, and an oil mist outlet nozzle 300 is arranged at the air outlet. The oil mist outlet nozzle 300 is sealed and connected to the left wall of the box body 100; a refueling port is provided on the top plate of the box body 100, and a detachable oil tank cap 101 is provided on the refueling port; a Laskin nozzle 400 is located in the box body 100, and the Laskin nozzle 400 is connected to the left end of the clean air intake nozzle 200 through an oil-resistant pipe 600, and the Laskin nozzle 400 is arranged in the vertical direction. The box 100 includes a hollow copper tube 401 and a flange cover 402 connected to the lower end of the hollow copper tube 401. The middle part of the flange cover 402 protrudes downward to form a cylindrical protrusion 4021. The protrusion 4021 is provided with a plurality of through holes 4022 for generating oil mist. The through holes 4022 are located below the clean air inlet nozzle 200 and the oil mist outlet nozzle 300. The side wall of the box 100 is also provided with an observation window 102 for checking the liquid level in the box 100 and an oil drain cover 104 for draining the oil in the box 100. The flange cover 402 and a part of the hollow copper tube 401 can be seen through the observation window 102; a filter baffle 500 is also provided in the box body 100, and the filter baffle 500 is arranged near the air outlet. The oil mist in the box body 100 is filtered by the filter baffle 500 and then discharged from the oil mist outlet nozzle 300 through the air outlet; the right end of the clean air inlet nozzle 200 is connected to the compressed air source through the regulating valve 201, and the regulating valve 201 is used to adjust the air pressure and flow passing through the clean air inlet nozzle 200.

[0028] like Figure 2-3 As shown, there are four through holes 4022, which are evenly distributed on the outer circumferential surface of the protrusion 4021. Of course, the through holes 4022 can also be set on the bottom surface of the protrusion 4021. The inner diameter of the through hole 4022 will affect the diameter of the emitted oil mist. Generally speaking, the inner diameter of the through hole 4022 is 0.8-1.2mm to prepare the oil mist with a diameter of about 0.3μm. The inner diameter of the hollow copper tube 401 will also affect the diameter of the oil mist. In order to ensure that the diameter of the prepared oil mist is about 0.3μm, the inner diameter range of the hollow copper tube 401 needs to be controlled within 5-9mm.

[0029] After filtering out some large droplets through the filter baffle 500, the oil mist is evenly discharged from the oil mist outlet nozzle 300 through the diamond holes on the filter baffle 500. In order to prevent the oil mist from condensing into oil liquid and then flowing back through the oil mist outlet nozzle 300 during the discharge process, it is more appropriate to control the inner diameter of the oil mist outlet nozzle 300 to be in the range of 12-17 mm.

[0030] Compared with the prior art, the present invention can generate oil mist in the range of high concentration to low concentration and maintain good stability, can greatly improve the accuracy of the photometer leak detection method, and will not affect the instrument to be tested or the high-efficiency filter, and can also avoid the phenomenon of oil mist backflow.

[0031] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel aerosol misting oil tank, comprising: A box body, wherein two air inlets are provided on the upper part of the right side wall of the box body, an air outlet is provided on the upper part of the left side wall of the box body, a refueling port is provided on the top plate of the box body, and a detachable fuel tank cap is provided on the refueling port; A clean air inlet nozzle, the clean air inlet nozzle is arranged at the air inlet, the left end of the clean air inlet nozzle extends into the box body, and the clean air inlet nozzle is sealed and connected to the right side wall of the box body; An oil mist outlet nozzle, the oil mist outlet nozzle is arranged at the air outlet, and the oil mist outlet nozzle is sealed and connected to the left side wall of the box body; A Laskin nozzle, the Laskin nozzle is connected to the left end of the clean air inlet nozzle through an oil-resistant pipe, the Laskin nozzle is arranged in a vertical direction, the Laskin nozzle comprises a hollow copper tube, a flange cover connected to the lower end of the hollow copper tube, the middle part of the flange cover protrudes downward to form a cylindrical protrusion, the protrusion is provided with a plurality of through holes for generating oil mist, and the through holes are located below the clean air inlet nozzle and the oil mist outlet nozzle; Features: The side wall of the box body is also provided with an observation window for viewing the liquid level in the box body, through which the flange cover and a part of the hollow copper tube can be seen; The box body is also provided with a filter baffle, which is arranged near the air outlet. The oil mist in the box body is filtered by the filter baffle and then discharged from the oil mist outlet nozzle through the air outlet. The right end of the clean air inlet nozzle is connected to a compressed air source through a regulating valve, and the regulating valve is used to adjust the air pressure and flow rate passing through the clean air inlet nozzle; There are four through holes, which are evenly distributed on the outer circumferential surface of the protruding portion; the through holes are located on the bottom surface and the outer circumferential surface of the protruding portion; and the inner diameter of the through holes is 0.8-1.2 mm.

2. The novel aerosol misting oil tank according to claim 1 is characterized in that: The inner diameter of the oil mist outlet nozzle is 12-17 mm.

3. The novel aerosol misting oil tank according to claim 1 or 2, characterized in that: The inner diameter of the hollow copper tube is 5-9 mm.

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