A high-power fan inlet filter device that can be replaced online

Abstract

The invention discloses an online replaceable high-power fan inlet filter device, comprising a filter body arranged at the blower inlet, an air inlet mask of the filter body being provided with a rainproof cover, and filter plates being provided around the air inlet of the filter body; the invention can ensure the continuous operation of the gasification device, and the filter screen can be directly replaced online; the filter plate is designed to be separate from the filter body, which greatly improves the inspection and maintenance flexibility and facilitates disassembly and installation; the filter plate adopts a new design concept, which can realize the rapid replacement of the filter element, and avoids the situation where the filter element is repeatedly cleaned and damaged, resulting in the filter plate being unusable; a filter plate track is designed to realize the pull-out loading and unloading function of the filter plate; the air intake area is increased, and the air intake volume is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of new energy and energy conservation and environmental protection, and relates to an online replaceable high-power fan inlet filter device. Background Art

[0002] The Yangling LNG Emergency Reserve Peak Shaving Project of Shaanxi Liquefied Natural Gas Investment and Development Co., Ltd. includes a natural gas purification unit, a natural gas liquefaction unit, LNG storage facilities, LNG loading facilities and a gasification unit. The gasification unit is an important facility of the Yangling LNG Emergency Reserve Peak Shaving Project, which effectively solves the problems of natural gas peak shaving and accident emergency of gas transmission network in winter in Shaanxi Province, provides strong guarantee for the safe and stable gas supply in Shaanxi Province, and has good social and economic benefits. Since the gasification unit of the Yangling LNG plant with a processing capacity of 3 million Nm3 / day was put into use, it has played an important role in the supply guarantee period of the peak gas consumption in winter in the province over the years.

[0003] As one of the core equipment of the gasification unit, the air combustion blower is the basis for ensuring the continuous, stable and efficient operation of the gasification unit. Due to the presence of a large amount of dust and coal powder in the surrounding air, the air intake filter of the combustion air blower is prone to clogging, which affects the air intake of the blower and reduces the pressure of the combustion air, resulting in incomplete combustion of the burner. In severe cases, it directly causes the SCV interlock shutdown. In the original form of the filter, the gasification unit must be stopped when cleaning and replacing the filter. The gasification unit generates losses during the start-up and shutdown process, which directly causes economic losses, and the venting causes environmental pollution. At the same time, it has a major impact on the province's peak load regulation and supply guarantee tasks, affects the stable supply of gas for people's livelihood, and causes adverse social impacts. Summary of the invention

[0004] The purpose of the present invention is to provide a high-power fan inlet filter device that can be replaced online. By developing and designing a new fan inlet filter device, processing and manufacturing a new fan inlet filter device to replace the original filter, the problem of being unable to replace the filter online is solved while ensuring that the air quality meets efficient operation.

[0005] The technical solution adopted by the present invention is an online replaceable high-power fan inlet filter device, including a filter body arranged at the blower inlet, the air inlet cover of the filter body is provided with a rain cover, and filter plates are provided around the air inlet of the filter body.

[0006] The present invention is also characterized in that:

[0007] The rain cover has a semi-enclosed structure and is mounted on the filter body through a bracket;

[0008] The filter plate is a rectangular filter plate;

[0009] The filter plate is provided with a filter cotton core inside, and the surface of the filter plate is also fixedly connected with two mutually perpendicular flat irons, and the two flat irons are located on the vertical bisector of the rectangular filter plate;

[0010] A handle is also provided at the end of the filter plate;

[0011] The filter body is located around the air inlet and is welded with filter plate tracks parallel to the side of the filter body, and the filter plates are embedded in the filter plate tracks and movably connected to the filter plate tracks;

[0012] The filter track includes two mutually parallel angle irons, the angle irons are respectively welded to the filter body around the air inlet, and the filter plate is embedded between the two angle irons.

[0013] The beneficial effects of the present invention are:

[0014] The existing gasification device needs to be shut down for filter replacement, which requires at least three hours of shutdown at a time. The high-power fan inlet filter device that can be replaced online in the present invention allows the gasification device to maintain continuous operation without interruption when the filter is replaced. The filter only needs to be slid out and then replaced, thus avoiding the gasification device from leaking natural gas due to multiple shutdowns caused by filter replacement, and also avoiding production losses during the winter supply guarantee period. This has great economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a main structural diagram of an online replaceable high-power fan inlet filter device of the present invention;

[0016] Figure 2 It is a side structural diagram of an online replaceable high-power fan inlet filter device of the present invention;

[0017] Figure 3 This is a structural diagram of a filter plate in an online replaceable high-power fan inlet filter device of the present invention;

[0018] In the figure, 1. filter rain cover, 2. filter plate, 3. filter cotton core, 4. blower inlet filter, 5. filter plate track. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The present invention provides an online replaceable high-power fan inlet filter device, the structure of which is as follows: Figure 1 and Figure 2 As shown, it includes a blower inlet filter itself 4, a filter rain cover 1 mounted around the filter air inlet, and a removable filter plate 2 installed around the filter air inlet, such as Figure 3As shown, the interior of the filter plate 2 is provided with a filter cotton core 3, and a filter plate track 5 for carrying the filter plate for pulling and loading and unloading; the blower inlet filter itself 4 is made of carbon steel, the filter rain cover 1 is welded to the filter device body through a bracket, the pull-out filter plate 2 is installed on the filter plate track 5 around the air inlet of the fan inlet filter 4 body, the filter cotton core 3 of the filter plate is directly installed in the pull-out filter plate 2, and is provided with two mutually perpendicular flat irons for welding and fixing, the filter plate track 5 is made of a plurality of mutually parallel angle irons, and is directly welded at the design position of the air inlet, and the filter plate track 5 is parallel to the side of the filter 4 body.

[0021] When the present invention is working, air can enter the blower from four directions at the same time, ensuring sufficient air intake. When the filter screen is blocked, the removable filter plate 2 can be directly pulled out for replacement without stopping the blower. The replacement work is safe and fast. It only needs to directly insert the clean removable filter plate 2 prepared in advance into the filter plate track 5. The cleaning work of the removable filter plate 2 is very convenient and fast. It only needs to open the fixing nuts around the removable filter plate 2, take out the filter cotton core 3 of the filter plate for cleaning or directly replace it with a new cotton core.

[0022] The new optimized filter device of the present invention can completely replace the original filter device. The new filter device has the following innovations and advantages during implementation and use:

[0023] (1) It can ensure the continuous operation of the gasification device and directly replace the filter online;

[0024] (2) The filter plate is designed to be separated from the filter body, which greatly improves the flexibility of inspection and maintenance and facilitates disassembly and installation;

[0025] (3) The filter plate adopts a new design concept, which can realize the rapid replacement of the filter element, avoiding the situation where the filter element is damaged by repeated cleaning, resulting in the filter plate being unusable;

[0026] (4) The filter plate track is designed to realize the pull-out loading and unloading function of the filter plate;

[0027] (5) Increase the air intake area and increase the air intake volume.

[0028] Especially in the northwest region and in the harsh environment around enterprises, the present invention has a more significant effect on high-power fans with high air quality requirements; the filtering device of the present invention has the characteristics of advanced design, compact equipment structure, simple on-site layout, strong practicality, safety and reliability, convenient and efficient operation, etc.

Claims

1. A high-power fan inlet filter device that can be replaced online, characterized in that: The invention comprises a filter body (4) arranged at the inlet of a blower, wherein the air inlet cover of the filter body (4) is provided with a rainproof cover (1), and filter plates (2) are provided around the air inlet of the filter body (4); The rain cover (1) has a semi-enclosed structure in cross section and is mounted on the filter body (4) via a bracket; The filter plate (2) is provided with a filter cotton core (3) inside, and the surface of the filter plate (2) is also fixedly connected with two mutually perpendicular flat irons, and the two flat irons are located on the vertical bisector of the rectangular filter plate (2); The filter body (4) is welded with filter plate tracks (5) parallel to the side surfaces of the filter body at the four sides of the air inlet, and the filter plate (2) is embedded in the filter plate track (5) and movably connected to the filter plate track (5); The filter plate track (5) comprises two mutually parallel angle irons, the angle irons are respectively welded to the air inlets around the filter body (4), and the filter plate (2) is embedded between the two angle irons.

2. The online replaceable high-power fan inlet filter device according to claim 1 is characterized in that: A handle is also provided at the end of the filter plate (2).

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