A constant-volume incendiary bomb viewing window scraper cleaning device and method

Abstract

This invention discloses a scraper-type cleaning device and method for the sight glass of a constant-volume incendiary bomb, relating to the field of constant-volume incendiary bomb cleaning technology. It includes an outer sight glass flange, a sight glass lens, an inner sight glass flange, and a scraper device. The inner sight glass flange is connected to the outer sight glass flange, the sight glass lens is installed between the inner and outer flanges, and the scraper device is installed on the inner sight glass flange and positioned above the sight glass lens. The scraper device performs liquid spraying cleaning, scraping cleaning, and air-drying on the sight glass lens. This invention achieves automatic cleaning of the inside of the sight glass of a constant-volume incendiary bomb, reducing experimental costs and improving experimental efficiency, real-time performance, and safety.

Description

Technical Field

[0001] This invention belongs to the field of cleaning technology for constant volume incendiary bombs, and more specifically, relates to a cleaning device and method for a constant volume incendiary bomb viewing window scraper. Background Technology

[0002] Constant volume combustion bombs are widely used to study engine spray and combustion characteristics under approximately constant volume conditions near top dead center of internal combustion engines. Constant volume combustion bombs are typically made of high-strength metal and have optical windows evenly distributed around their perimeter. After repeated experiments, the optical windows become covered with a large amount of oil, water vapor, etc., reducing the camera's image sharpness and causing inaccurate experimental results.

[0003] Currently, the method for cleaning oil stains and water vapor from the inside of the sight glass of a constant-volume incendiary bomb is to disassemble the fixing flange of the sight glass and clean the sight glass separately. This not only wastes experimental time, disrupts the continuity of the experiment, and reduces experimental efficiency, but also increases the labor and economic costs of the experiment due to the need to replace the sealing gasket after disassembling the flange. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a scraper-type cleaning device and method for the viewing window of a constant-volume incendiary bomb, which can realize automatic cleaning of the inside of the viewing window of the constant-volume incendiary bomb, reduce experimental costs, and improve experimental efficiency, real-time performance and safety.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A constant-volume incendiary bomb sight glass scraper cleaning device includes an outer flange of the sight glass, a sight glass lens, an inner flange of the sight glass, and a scraper device. The inner flange of the sight glass is connected to the outer flange of the sight glass. The sight glass lens is installed between the inner flange and the outer flange of the sight glass. The scraper device is installed on the inner flange of the sight glass and located above the sight glass lens. The scraper device performs liquid spraying cleaning, scraping cleaning, and air jet drying on the sight glass lens.

[0007] Preferably, the scraper device includes a water and air supply pipe, a swing rotary joint, an internal gear, a driven scraper, a ring pipe, nozzles, a drain and exhaust pipe, and an active scraper. The ends of both the active and driven scrapers are rotatably connected to the inner flange of the sight glass. The swing rotary joint drives the active scraper to swing back and forth, the active scraper drives the internal gear to rotate back and forth, and the internal gear drives the driven scraper to swing back and forth. During the back and forth swinging process, the active and driven scrapers scrape and clean the sight glass. The water and air supply pipe is connected to the inlet of the swing rotary joint, and the ring pipe is connected to the outlet of the swing rotary joint through a connecting pipe. The ring pipe is installed on the inner flange of the sight glass and is equipped with several nozzles. The nozzles spray liquid to clean and air dry the sight glass. The drain and exhaust pipe is installed on the inner flange of the sight glass.

[0008] Preferably, a first connecting shaft is provided at the end of the active scraper, the first connecting shaft is keyed to the rotating end of the swing rotary joint, the first connecting shaft is also provided with a first external gear, the first external gear meshes with the internal gear, and the first connecting shaft is rotatably connected to the inner flange of the sight glass through a bearing.

[0009] Preferably, a second connecting shaft is provided at the end of the driven scraper, and a second external gear is provided on the second connecting shaft. The second external gear meshes with the internal gear, and the second connecting shaft is rotatably connected to the inner flange of the sight glass through a bearing.

[0010] Preferably, a groove with an opening facing the center is provided on the inner wall of the inner flange of the sight glass, and the internal gear is installed in the groove.

[0011] Preferably, there is one active scraper and two driven scrapers, all three are evenly distributed circumferentially, with an included angle of 120° between each pair. The bottom and free end of the scraper are made of flexible material, and the bottom of the scraper is in contact with the sight glass.

[0012] Preferably, the water or gas supply pipe provides pressurized liquid or gas to power the swing rotary joint to swing and rotate, with a swing angle of 110° to 120°.

[0013] A method for cleaning a constant-volume incendiary bomb using a scraper-type cleaning window, comprising the following steps:

[0014] The first step is to compare the computer image with the preset sharpness threshold. If it is lower than the threshold, it means that the lens is contaminated and needs to be cleaned.

[0015] The second step is to turn on the water pump in the cleaning solution tank, drive the scraper to swing and rotate, and spray the cleaning solution from the nozzle to clean the viewing lens. Once the computer image is higher than the preset clarity threshold, turn off the water pump.

[0016] The third step is to start the air compressor, inject air into the heat exchanger, exchange heat with the hot exhaust gas, and blow the hot air onto the inner surface of the lens to dry the water stains.

[0017] Fourth step: Once no more water vapor is discharged from the exhaust drain pipe outlet, the cleaning process is complete. Then, shut off the air compressor and its pipeline valves.

[0018] Preferably, a filter device needs to be installed at the outlet of the water pump and the air compressor.

[0019] The beneficial effects of adopting the above technical solution are as follows:

[0020] 1. This device inputs pressurized liquid or gas into the oscillating rotary joint to make it oscillate and rotate, thereby driving the scraper to oscillate and rotate to clean the sight glass. At the same time, the pressurized liquid can rinse the sight glass, and the gas can dry the sight glass. This achieves two goals at once, realizing automatic cleaning of the inside of the sight glass of the constant volume incendiary bomb, reducing experimental costs, and improving the efficiency, real-time performance, and safety of the experiment.

[0021] 2. This device utilizes the residual heat of the experimental exhaust gas, avoiding heat waste, and uses hot air to purge the steam inside the constant-volume incendiary bomb, ensuring the accuracy of subsequent experiments.

[0022] 3. This cleaning device has a simple structure, is easy to process and manufacture, and has strong practicality and applicability. Attached Figure Description

[0023] Figure 1 This is an exploded structural diagram of the present invention;

[0024] Figure 2 This is a 1 / 4 cross-sectional structural diagram of the sight glass, the inner flange of the sight glass, and the scraper device connected together;

[0025] Figure 3 This is a schematic diagram of the scraper device;

[0026] Figure 4 This is a schematic diagram of the flange inside the sight glass;

[0027] Figure 5 This is a schematic diagram of the ring nozzle setup;

[0028] Figure 6 This is a schematic diagram of the nozzle's spray range;

[0029] Figure 7 This is a system diagram of a constant-volume incendiary bomb window scraper cleaning method;

[0030] In the diagram: 1. Outer flange of sight glass; 2. Sight glass lens; 3. Inner flange of sight glass; 4. Scraper device; 41. Water and air supply pipe; 42. Swing rotary joint; 43. Internal gear; 44. Driven scraper; 45. Bearing; 46. Ring pipe; 47. Nozzle; 48. Drainage and exhaust pipe; 49. Active scraper; 410. Connecting pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] like Figure 1-2 As shown, the cleaning device includes an outer sight glass flange 1, a sight glass lens 2, an inner sight glass flange 3, and a scraper device 4. The inner sight glass flange 3 is bolted to the outer sight glass flange 1, and the sight glass lens 2 is installed between the inner sight glass flange 3 and the outer sight glass flange 1. The scraper device 4 is installed on the inner sight glass flange 3 and located above the sight glass lens 2. The scraper device 4 performs liquid spraying cleaning, scraping cleaning, and air drying on the sight glass lens 2.

[0033] Specifically, such as Figure 2-3 As shown, the scraper device 4 includes a water and air supply pipe 41, a swing rotary joint 42, an internal gear 43, a driven scraper 44, a ring pipe 4, a nozzle 47, a drain and exhaust pipe 48, and an active scraper 49. The water and air supply pipe 41 is connected to the inlet of the swing rotary joint 42. The water and air supply pipe 41 supplies pressurized liquid or gas to the swing rotary joint 42 to provide the power for the swing rotation of the swing rotary joint 42. The swing angle is controlled between 110° and 120°.

[0034] A first connecting shaft is provided at the end of the active scraper 49. The first connecting shaft is connected to the rotating end of the swing rotary joint 42 via a flat key, ensuring that the swing rotary joint 42 drives the first connecting shaft and the active scraper 49 to rotate synchronously. A first external gear is also provided on the first connecting shaft, which meshes with the internal gear 43. The first connecting shaft is rotatably connected to the inner flange 3 of the sight glass via a bearing. When the swing rotary joint 42 swings and rotates, the first connecting shaft drives the first external gear to swing and rotate synchronously, and the first external gear drives the internal gear 43 to swing and rotate.

[0035] A second connecting shaft is provided at the end of the driven scraper 44, and a second external gear is provided on the second connecting shaft. The second external gear meshes with the internal gear 43. The second connecting shaft is rotatably connected to the inner flange 3 of the sight glass through a bearing. When the internal gear 43 swings and rotates, it drives the second external gear to swing and rotate, which in turn drives the second connecting shaft to swing and rotate, and the second connecting shaft drives the driven scraper 44 to swing and rotate.

[0036] There is one active scraper 49 and two driven scrapers 44, all three evenly distributed circumferentially and swinging in the same direction. The included angle between any two scrapers is 120°. The bottom of the scraper is in contact with the viewing lens 2, and the scraper cleans the viewing lens 2 as it swings. The visible length of all three scrapers is equal to the visible radius of the viewing lens 2 to ensure there are no blind spots that cannot be cleaned. The bottom and free end of the scraper are made of flexible material to prevent deformation and misalignment when the scraper ends collide. The bottom of the scraper must be in close contact with the viewing lens 2 to ensure that the viewing lens 2 is thoroughly cleaned.

[0037] The outlet of the swivel rotary joint 42 is located at the stationary end, and is connected to the ring pipe 46 via the connecting pipe 410. The ring pipe 46 is spot-welded to the outside of the inner flange 3 of the sight glass. Figure 3 As shown, the drain and exhaust pipe 48 is placed at the bottom, with its inner bottom surface lower than the bottom surface of the annular groove of the inner flange 3 of the sight glass, to ensure that wastewater and exhaust gas can be discharged completely. Pressurized water or gas enters the swing rotary joint 42 from the water and gas supply pipe 41, driving the swing rotary joint 42 to swing and rotate, thereby driving the three scrapers to swing and rotate. Pressurized water or gas comes out from the swing rotary joint 42, enters the ring pipe 46 through the connecting pipe 410, and then is sprayed out from the nozzles 47 evenly distributed on the ring pipe 46. Finally, the sprayed water or gas is discharged through the drain and exhaust pipe 48.

[0038] An annular groove with an opening facing the center is provided on the inner wall of the inner flange 3 of the sight glass. The internal gear 43 is installed in the groove and can rotate within the groove. Figure 4 As shown, three evenly distributed semi-circular bosses with notches and holes need to be machined on the side of the inner flange 3 of the sight mirror near the sight mirror lens 2 to install bearings 45. The first connecting shaft and the second connecting shaft are rotatably connected to the inner flange 3 of the sight mirror through bearings 45.

[0039] like Figure 5 As shown, the nozzles 47 should be evenly distributed inside the ring pipe 46 and spray towards the sight glass 2. The number of nozzles should meet the flow rate and cleaning requirements. The spray range of the nozzles 47 should cover the visible range to ensure that there are no dead corners that cannot be cleaned, thereby ensuring the clarity of the camera images.

[0040] The cleaning method steps of the cleaning device are as follows:

[0041] The first step is to compare the computer image with the preset sharpness threshold. If it is lower than the threshold, it means that the lens 2 is contaminated and needs to be cleaned.

[0042] The second step is to turn on the water pump in the cleaning solution tank, drive the scraper to swing and rotate, and spray the cleaning solution from the nozzle to clean the viewing lens 2. Once the computer image is higher than the preset clarity threshold, turn off the water pump.

[0043] The third step is to start the air compressor, inject air into the heat exchanger, exchange heat with the hot exhaust gas, and blow the hot air through the nozzle onto the inner surface of the sight glass 2 to dry the water stains, etc.

[0044] Fourth step: Once no more water vapor is discharged from the exhaust drain pipe outlet, the cleaning process is complete. Then, shut off the air compressor and its pipeline valves.

[0045] like Figure 7 As shown, a filter device needs to be installed between the cleaning fluid tank and the water pump, and a filter device needs to be installed at the air compressor outlet to ensure that there are no impurities in the medium and to ensure smooth flow of the nozzle 47. An automatic gate valve is installed between the air compressor and the heat exchanger. The valve is closed during water pump operation and opened after the water pump is turned off, allowing the air to exchange heat with the hot exhaust gas.

[0046] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sight glass scraper-type cleaning device for a constant-volume incendiary bomb, comprising an outer flange (1), a sight glass lens (2), and an inner flange (3), wherein the inner flange (3) is connected to the outer flange (1), and the sight glass lens (2) is installed between the inner flange (3) and the outer flange (1), characterized in that, It also includes a scraper device (4), which is installed on the inner flange (3) of the sight glass and located above the sight glass (2). The scraper device (4) performs liquid spraying cleaning, scraping cleaning, and air drying on the sight glass (2). The scraper device (4) includes a water and air supply pipe (41), a swing rotary joint (42), an internal gear (43), a driven scraper (44), a ring pipe (46), a nozzle (47), a drain and exhaust pipe (48), and an active scraper (49). The ends of the active scraper (49) and the driven scraper (44) are rotatably connected to the inner flange (3) of the sight glass. The swing rotary joint (42) drives the active scraper (49) to swing back and forth. The active scraper (49) drives the internal gear (43) to rotate back and forth. The internal gear (43) drives the driven scraper (44) to swing back and forth. The active scraper (49) and the driven scraper (44) scrape and clean the sight glass (2) during the reciprocating swing process; the water and air supply pipe (41) is connected to the inlet of the swing rotary joint (42), and the ring pipe (46) is connected to the outlet of the swing rotary joint (42) through the connecting pipe (410). The ring pipe (46) is installed on the inner flange (3) of the sight glass, and several nozzles (47) are provided on the ring pipe (46). The nozzles (47) spray liquid to clean and air dry the sight glass (2); the drain and exhaust pipe (48) is installed on the inner flange (3) of the sight glass. A first connecting shaft is provided at the end of the active scraper (49). The first connecting shaft is keyed to the rotating end of the swing rotary joint (42). A first external gear is also provided on the first connecting shaft. The first external gear meshes with the internal gear (43). The first connecting shaft is rotatably connected to the inner flange (3) of the sight glass through a bearing. A second connecting shaft is provided at the end of the driven scraper (44), and a second external gear is provided on the second connecting shaft. The second external gear meshes with the internal gear (43), and the second connecting shaft is rotatably connected to the inner flange (3) of the sight glass through a bearing.

2. The constant-volume incendiary bomb viewing window scraper cleaning device according to claim 1, characterized in that, A groove with an opening facing the center is provided on the inner wall of the inner flange (3) of the sight glass, and the internal gear (43) is installed in the groove.

3. The constant-volume combustion bomb viewing window scraper type cleaning device according to claim 1, characterized in that, There is one active scraper (49) and two driven scrapers (44). The three are evenly distributed around the periphery, and the included angle between each pair is 120°. The bottom and free end of the scraper are made of flexible material, and the bottom of the scraper is attached to the sight glass (2).

4. The constant-volume incendiary bomb viewing window scraper type cleaning device according to claim 1, characterized in that, The water and gas supply pipe (41) inputs pressurized liquid or gas to provide the swing rotation power for the swing rotary joint (42), with a swing angle of 110°~120°.

5. A method for cleaning a constant-volume incendiary bomb window using a scraper-type cleaning device as described in claim 1, characterized in that, The steps are as follows: The first step is to compare the computer image with the preset sharpness threshold. If it is lower than the threshold, it means that the lens (2) is contaminated and needs to be cleaned. The second step is to turn on the water pump in the cleaning liquid tank, drive the scraper, spray the cleaning liquid, and clean the viewing lens (2). When the computer image is higher than the preset clarity threshold, turn off the water pump. The third step is to start the air compressor, inject air into the heat exchanger, exchange heat with the hot exhaust gas, and blow the hot air onto the inner surface of the sight glass (2) to dry the water stains. Fourth step: Once no more water vapor is discharged from the exhaust drain pipe outlet, the cleaning process is complete. Then, shut off the air compressor and its pipeline valves.

6. The method for cleaning a constant-volume incendiary bomb through a scraper-type window according to claim 5, characterized in that, Filter devices need to be installed at the outlets of the water pump and air compressor.

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