A foam collection device

Abstract

The application discloses a kind of foam collection devices, including foam collection box, foam baffle, foam scraper, slide rail, weighing equipment and foam collection structure;Foam collection box includes box, top cover plate and side cover plate, box top opening connects top cover plate, foam baffle is fixed in the box in the bottom of top cover plate, through-hole is opened in foam baffle, box side opening connects side cover plate, and foam scraper is fixed in the top of box side opening;Box inside fixed slide rail, weighing equipment is fixed on slide rail, and foam collection structure is set on weighing equipment, and the collection end of foam collection structure is set just below through-hole.The advantages of the present application are that the device can quickly collect foam, and there is no manual operation during the collection process, improving the accuracy of foam performance detection in the later stage.Foam baffle, foam scraper, slide rail, weighing equipment and foam collection structure are all arranged in foam collection box, which is convenient to move and operate, and has wide application range.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment technology, specifically to a foam collection device. Background Technology

[0002] DC transmission is currently an important means of solving the problems of high voltage, large capacity, long-distance power transmission and power grid interconnection. Compared with AC transmission, high voltage DC transmission has a large transmission capacity, long distance, low transmission loss, and saves land and corridor space. Ultra-high voltage DC transmission is currently the most advanced power transmission technology in the world.

[0003] Ultra-high voltage (UHV) converter stations are the core of UHVDC projects, enabling AC-DC conversion. Their normal operation is the foundation for the normal operation of the UHVDC transmission system, and their reliability directly affects the safety of personnel and equipment, as well as the stable operation of the power grid. Converter stations contain a large number of oil-filled electrical devices, such as converter transformers, posing a significant fire hazard. Statistics show that most converter station accidents are explosions or fires caused by oil-filled equipment. These accidents range from minor damage to switchgear leading to single-pole outages to severe burnout of converter equipment causing shutdowns for maintenance, seriously impacting the safe operation of the power grid. Therefore, it is necessary to install fire suppression systems in UHV converter stations. For example, Chinese invention patent publication number CN111790089A discloses a fire suppression system, method, and application for an operating UHV converter station. This system provides a fire suppression system that can completely cover the fire area of ​​the converter transformer without damaging the structure of the operating converter station, and is applicable to operating UHV converter stations.

[0004] Currently, most converter substations use traditional fire suppression systems: water spray and foam spray systems. With continuous advancements in fire suppression technology, a new, highly efficient fire suppression system has emerged: the compressed air foam fire suppression system. Given its advantages such as high fire suppression and cooling efficiency, good coverage, water savings, resistance to explosions, and high-temperature resistance, the compressed air foam fire suppression system is well-suited for extinguishing hot oil fires in large transformers at UHV converter substations. Fixed compressed air foam fire suppression systems in UHV converter substations have been gradually put into operation. In subsequent maintenance, specialized testing equipment is needed to periodically test the performance of fixed compressed air foam fire suppression systems to ensure they are in good working order and to guarantee the safe operation of the converter substation.

[0005] Traditional foam performance testing involves spraying foam directly onto the ground and manually collecting it. This collection process is not only complex, but the data collected manually is also not accurate enough. Summary of the Invention

[0006] The technical problem to be solved by this invention is how to quickly collect foam and improve the detection accuracy after foam collection.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A foam collection device includes a foam collection box, a foam baffle, a foam scraper, a slide rail, a weighing device, and a foam collection structure; the foam collection box includes a box body, a top cover plate, and a side cover plate, the box body is open at the top and on one side, the top opening of the box body is connected to the top cover plate, the foam baffle is fixed inside the box body at the bottom of the top cover plate, the foam baffle has a through hole, the side opening of the box body is connected to the side cover plate, and the foam scraper is fixed at the top of the side opening of the box body;

[0009] The slide rail is fixed inside the box, and the weighing device is fixed on the slide rail. A foam collecting structure is provided on the weighing device, and the collecting end of the foam collecting structure is located directly below the through hole.

[0010] Compressed air foam is sprayed onto a foam baffle by opening the top cover and flows into the foam collection structure through the through-holes for collection. After collection, the side cover is opened, and the weighing device and foam collection structure are moved out of the box via a slide rail. During the removal process, a foam scraper smooths out excess foam on the top of the foam collection structure, and the weight of the foam inside the foam collection structure is weighed by the weighing device. This device can quickly collect compressed air foam without manual operation, improving the accuracy of subsequent foam performance testing. Furthermore, the foam baffle, foam scraper, slide rail, weighing device, and foam collection structure are all housed inside the foam collection box, facilitating movement and operation, and making it widely applicable.

[0011] Preferably, the foam collection structure includes a support plate, a foam collection tank, a reflux plate, an outlet pipe, and a valve. The foam collection tank is mounted on the weighing equipment via the support plate. The top of the foam collection tank is open, and the top opening of the foam collection tank is located directly below the through hole. A reflux plate is provided along the edge of the top opening of the foam collection tank. The bottom of the foam collection tank is connected to the outlet pipe, and the valve is provided on the outlet pipe.

[0012] Preferably, the top surface of the reflux plate is flush with the top opening of the foam collection tank.

[0013] Preferably, the top opening of the foam collection tank is flush with the bottom surface of the foam scraper.

[0014] Preferably, the valve is an electric ball valve.

[0015] Preferably, the top cover plate includes a first top cover plate, a second top cover plate, and foam baffles. The two ends of the first top cover plate are rotatably connected to the two sides of the top opening of the box via a pivot. The top of the first top cover plate is hinged to the second top cover plate. Two foam baffles are fixed at the bottom of the first top cover plate. The two foam baffles are arranged in a V-shape, so that when the first top cover plate is opened, the bottom of the V-shape formed by the two foam baffles is positioned directly above the through hole.

[0016] Compressed air foam flows into the through hole through the V-shaped bottom formed by two foam baffles and enters the foam collection structure for collection. At the same time, compressed air foam flowing into the foam baffle will also enter the foam collection structure through the through hole for collection. The collection process is quick and convenient and will not cause waste of foam liquid.

[0017] Preferably, the second top cover plate is provided with a top cover plate handle.

[0018] Preferably, the weighing device is an electronic scale.

[0019] Preferably, the box body is provided with an elastic handle.

[0020] Preferably, the bottom of the box is also fixed with multiple rollers.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. By opening the top cover, compressed air foam is sprayed onto the foam baffle and flows into the foam collection structure through the through-hole for foam collection. After collection, the side cover is opened, and the weighing device and foam collection structure are moved out of the box via the slide rail. During the removal process, the foam scraper scrapes off excess foam from the top of the foam collection structure, and the weight of the foam in the foam collection structure is weighed by the weighing device. This device can quickly collect compressed air foam without manual operation, improving the accuracy of subsequent foam performance testing. Furthermore, the foam baffle, foam scraper, slide rail, weighing device, and foam collection structure are all housed inside the foam collection box, facilitating movement and operation, and making it widely applicable.

[0023] 2. Compressed air foam flows into the through hole through the V-shaped bottom formed by two foam baffles and enters the foam collection structure for collection. At the same time, compressed air foam flowing into the foam baffle will also enter the foam collection structure through the through hole for collection. The collection process is quick and convenient and will not cause waste of foam liquid. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a foam collection device according to Embodiment 1 of the present invention;

[0025] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0026] Figure 3 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0027] Figure 4 This is a left view of Embodiment 1 of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the detection device body according to Embodiment 1 of the present invention. Detailed Implementation

[0029] To facilitate understanding of the technical solution of the present invention by those skilled in the art, the technical solution of the present invention will now be further described in conjunction with the accompanying drawings.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited.

[0032] See Figure 1 and Figure 2 This embodiment discloses a foam collection device, including a foam collection box 1, a foam baffle 2, a foam scraper 3, a slide rail 4, a weighing device 5, and a foam collection structure 6. The foam collection box 1 includes a box body 11, a top cover plate 12, and a side cover plate 13. The box body 11 is open at the top and on one side. The top opening of the box body 11 is connected to the top cover plate 12. The foam baffle 2 is fixed inside the box body 11 at the bottom of the top cover plate 12. The foam baffle 2 has a through hole 21. The side opening of the box body 11 is connected to the side cover plate 13. The top of the side opening of the box body 13 is fixed to the foam scraper 3.

[0033] The slide rail 4 is fixed inside the housing 11, and the weighing device 5 is fixed on the slide rail 4. In this embodiment, the weighing device 5 is an electronic scale. The foam collecting structure 6 is fixed on the weighing device 5, and the collecting end of the foam collecting structure 6 is located directly below the through hole 21.

[0034] By opening the top cover 12, compressed air foam is sprayed onto the foam baffle 2 and flows into the foam collection structure 6 through the through hole 21 for foam collection. After collection, the side cover 13 is opened, and the weighing device 5 and the foam collection structure 6 are moved out of the box 11 via the slide rail 4. During the removal process, the foam scraper 3 scrapes off the excess foam on the top of the foam collection structure 6, and the weight of the foam in the foam collection structure 6 is weighed by the weighing device 5. This device can quickly collect compressed air foam without manual operation, improving the accuracy of subsequent foam performance testing. Furthermore, the foam baffle 2, foam scraper 3, slide rail 4, weighing device 5, and foam collection structure 6 are all located inside the foam collection box 1, making it convenient to operate and carry, and applicable to a wide range of situations.

[0035] See Figure 3 The foam collection box 1 is also equipped with an elastic handle 14 and multiple rollers 15. The box body 11 includes an outer frame 111 and a panel 112. The outer frame 111 is a frame structure. The panel 112 is fixed on the outer frame 111. The elastic handle 14 is fixed on the panel 112. The rollers 15 are arranged along the four corners of the bottom of the outer frame 111 to facilitate the movement of the foam collection box 1.

[0036] See Figure 4 The top cover plate 12 includes a first top cover plate 121, a second top cover plate 122, foam baffles 123, and a top cover plate handle 124. The two ends of the first top cover plate 121 are rotatably connected to the two sides of the top opening of the outer frame 111 via a pivot. The top of the first top cover plate 121 is hinged to the second top cover plate 122. The top cover plate handle 124 is fixed on the side of the second top cover plate 122 away from the first top cover plate 121. Two foam baffles 123 are fixed at the bottom of the first top cover plate 121. The two foam baffles 123 are arranged in a V-shape, so that when the first top cover plate 121 is opened, the bottom of the V-shape formed by the two foam baffles 123 is positioned directly above the through hole 21.

[0037] Specifically, pulling the top cover handle 124 opens the first top cover 121 via the second top cover 122, causing the V-shaped bottom formed by the two foam baffles 123 at the bottom of the first top cover 121 to be positioned directly above the through hole 21. Then, compressed air foam is sprayed onto the bottom surface of the first top cover 121. The compressed air foam flows into the through hole 21 through the V-shaped bottom formed by the two foam baffles 123 and enters the foam collection structure 6 for collection. At the same time, the compressed air foam flowing into the foam baffle 2 also enters the foam collection structure 6 through the through hole 21 for collection. The collection process is quick and convenient and does not cause waste of foam liquid.

[0038] The side cover plate 13 is hinged to the side opening of the outer frame 111, and a side cover plate handle 131 is fixed on the side cover plate 13.

[0039] See Figure 5 The foam collection structure 6 includes a support plate 61, a foam collection tank 62, a return plate 63, an outlet pipe 64, and a valve 65. The foam collection tank 62 is fixed to the weighing device 5 by the support plate 61. The top of the foam collection tank 62 is open, and the top opening of the foam collection tank 62 is located directly below the through hole 21. The return plate 63 is provided along the edge of the top opening of the foam collection tank 62, and the top surface of the return plate 63 is flush with the top opening of the foam collection tank 62, for returning the foam to the foam collection tank 62. The bottom of the foam collection tank 62 is connected to the outlet pipe 64, and the valve 65 is provided on the outlet pipe 64. In this embodiment, the valve 65 is an electric ball valve.

[0040] Specifically, the foam flowing down from the through hole 21 enters the foam collection tank 62. During the flow process, a small amount of foam will flow onto the return plate 63 and then flow back into the foam collection tank 62 to prevent foam waste. When the foam collection tank 62 is full, the weighing device 5 is pulled, and the foam collection tank 62 is moved out of the foam collection box 1 through the slide rail 4 to achieve foam collection.

[0041] Furthermore, the top opening of the foam collection tank 62 is flush with the bottom surface of the foam scraper 3, so that excess foam on the top of the foam collection tank 62 can be scraped flat by the foam scraper 3 during the removal process, ensuring the accuracy of subsequent foam performance testing.

[0042] The working principle of this embodiment is as follows: According to the position of the compressed air foam fire extinguishing system, push the box 1 to move the device to the output end of the compressed air foam fire extinguishing system. Then, pull the top cover handle 124, and the first top cover 121 will be opened through the second top cover 122. The V-shaped bottom formed by the two foam baffles 123 at the bottom of the first top cover 121 will be positioned directly above the through hole 21. Then, compressed air foam will be sprayed on the bottom surface of the first top cover 121. The compressed air foam will flow into the through hole 21 through the V-shaped bottom formed by the two foam baffles 123. The foam flowing down from the through hole 21 will enter the foam collection tank 62. During the flow process, a small amount of foam will flow onto the return plate 63 and then flow back into the foam collection tank 62. When the foam collection tank 62 has finished collecting, open the side cover 13, pull the weighing device 5, and move the foam collection tank 62 out of the foam collection box 1 through the slide rail 4. The weight of the foam in the foam collection tank 62 will be weighed by the weighing device 5 to achieve foam collection.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] The above embodiments are merely examples of implementation methods of the invention. The scope of protection of the present invention is not limited to the above embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A foam collection device, characterized by: The foam collecting box, the foam baffle, the foam scraping plate, the slide rail, the weighing device and the foam collecting structure; the foam collecting box comprises a box body, a top cover plate and a side cover plate, the box body is open at the top and one side, the top opening of the box body is connected with the top cover plate, the foam baffle is fixed in the box body at the bottom of the top cover plate, the foam baffle is provided with a through hole, the side opening of the box body is connected with the side cover plate, and the foam scraping plate is fixed at the top of the side opening of the box body; The slide rail is fixed in the box body, the weighing device is fixed on the slide rail, the foam collecting structure is arranged on the weighing device, and the collecting end of the foam collecting structure is arranged directly below the through hole; The top opening of the foam collecting tank is flush with the bottom surface of the foam scraping plate; The top cover plate comprises a first top cover plate, a second top cover plate and a foam baffle rod, the first top cover plate is rotatably connected to the two sides of the top opening of the box body through rotating shafts at two ends, the first top cover plate is hingedly connected with the second top cover plate at the top, two foam baffle rods are fixed to the bottom of the first top cover plate, the two foam baffle rods are arranged in a V shape, and the bottom of the V shape formed by the two foam baffle rods is arranged directly above the through hole when the first top cover plate is opened.

2. A foam collection device according to claim 1, wherein: The foam collecting structure comprises a support plate, a foam collecting tank, a reflux plate, a liquid outlet pipe and a valve, the foam collecting tank is arranged on the weighing device through the support plate, the top of the foam collecting tank is open, the top opening of the foam collecting tank is arranged directly below the through hole, the reflux plate is arranged along the edge of the top opening of the foam collecting tank, the liquid outlet pipe is connected to the bottom of the foam collecting tank, and the valve is arranged on the liquid outlet pipe.

3. A foam collection device according to claim 2, wherein: The top surface of the reflux plate is flush with the top opening of the foam collecting tank.

4. A foam collection device according to claim 2, wherein: The valve is an electric ball valve.

5. A foam collection device according to claim 1, wherein: A top cover plate handle is arranged on the second top cover plate.

6. A foam collection device according to claim 1, wherein: The weighing device is an electronic scale.

7. A foam collection device according to claim 1, wherein: An elastic handle is arranged on the box body.

8. A foam collection device according to claim 1, wherein: A plurality of rollers are further fixed to the bottom of the box body.

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