Inlet air filtering unit and inlet air filtering chamber

Abstract

The invention discloses an air inlet filtering unit and an air inlet filtering chamber, and relates to the technical field of air filtering devices.The air inlet filtering unit comprises a filtering unit body, an air inlet is formed in one end of the filtering unit body, and an air outlet is formed in the other end of the filtering unit body; the plurality of filter mounting frames are sequentially connected end to end and are fixed in the filtering unit body; the filter mounting frame is obliquely arranged in the filter unit body; the filters are fixedly installed at the ends, close to the air inlet, of the filter installation frames, and after the filters are installed in the multiple filter installation frames, the air inlet and the air outlet can be separated. The air inlet filtering chamber is formed by assembling the two air inlet filtering units. On the premise that the size of an installation space is limited, the filtering area can be increased, and the high-flow requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of gas filtration devices, and particularly to an intake air filtration unit and an intake air filtration chamber. Background Art

[0002] The intake air filtration chamber filters the incoming air through the filter inside it, removing pollutants such as solid impurities and dust, so as to provide clean air for subsequent equipment or systems. However, when providing an intake air filtration chamber for a gas turbine, due to the limited space of the installation environment, the maximum external dimension of the intake air filtration chamber is restricted. When the demand for intake air volume is too high, the traditional "one"-shaped filter arrangement in the intake air filtration chamber has a small filtration area, and the intake air filtration chamber cannot meet the high-flow demand.

[0003] Therefore, there is an urgent need to design an intake air filtration solution that can meet the high-flow demand under the premise of limited installation space dimensions. Summary of the Invention

[0004] The purpose of the present invention is to provide an intake air filtration unit and an intake air filtration chamber to solve the problems existing in the above-mentioned prior art, and to be able to increase the filtration area and meet the high-flow demand under the premise of limited installation space dimensions.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The present invention provides an intake air filtration unit, including:

[0007] A filtration unit body, one end of which is provided with an air inlet, and the other end is provided with an air outlet;

[0008] Filter mounting frames, a plurality of the filter mounting frames are connected end to end in sequence and are fixed inside the filtration unit body; the filter mounting frames are arranged obliquely inside the filtration unit body;

[0009] Filters, fixedly installed at one end of the filter mounting frame close to the air inlet, and after the filters are installed in a plurality of the filter mounting frames, the air inlet and the air outlet can be separated.

[0010] Preferably, the filter mounting frame includes a parallel top side and a bottom side, and the top side and the bottom side are fixedly connected by two parallel side sides. The area surrounded by the top side, the bottom side and the two side sides is used to install the filter; a plurality of the filter mounting frames are connected end to end in sequence through the side sides.

[0011] Preferably, the side edges are vertically arranged inside the filtering unit body, the top edges are obliquely arranged between the top of the air inlet and the top of the air outlet of the filtering unit body, the top edges of two adjacent filter mounting frames are obliquely arranged in opposite directions, the bottom edges are obliquely arranged between the bottom of the air inlet and the bottom of the air outlet of the filtering unit body, and the bottom edges of two adjacent filter mounting frames are obliquely arranged in opposite directions.

[0012] Preferably, the top edges are fixedly parallel to the top of the air inlet or the top of the air outlet, and the bottom edges are fixedly parallel to one end far from the top edges; the side edges are obliquely arranged inside the filtering unit body, and the side edges of two adjacent filter mounting frames are obliquely arranged in the same direction.

[0013] Preferably, a louver mounting frame is fixedly arranged at one end of the filtering unit body close to the air inlet, and louvers are arranged inside the louver mounting frame; a wire rack is arranged on the louver mounting frame, and one end of the cable of the louver is threaded through the wire rack.

[0014] Preferably, a horizontally arranged platform is arranged inside the filtering unit body, and the platform is located at one end of the filter mounting frame close to the air inlet; the platform includes a platform skeleton fixedly arranged inside the filtering unit body, a horizontally arranged bearing plate is fixedly arranged on the platform skeleton, and the upper surface of the bearing plate is provided with patterns.

[0015] Preferably, a sewage pipe is arranged between two adjacent filter mounting frames, the sewage pipe penetrates through the bottom of the filtering unit body, and a ball valve is installed on each sewage pipe.

[0016] Preferably, interlayers are arranged on the side walls of the filtering unit body, and sound-insulating glass wool is filled in the interlayers.

[0017] The present invention also provides an air inlet filtering chamber, which includes two air inlet filtering units as described above; a connection port is arranged on one side of the air inlet filtering unit; the two air inlet filtering units are connected through the connection port, and a gasket is arranged at the connection position.

[0018] Preferably, a maintenance door is hinged to one side of one of the air inlet filtering units far from the connection port, and the maintenance door is located at one end of the air inlet filtering unit close to the air outlet.

[0019] The present invention has achieved the following technical effects compared with the prior art:

[0020] In the present invention, a plurality of filter mounting frames are arranged inside the filtering unit body, and a filter is installed in each filter mounting frame. After the filters are installed in the plurality of filter mounting frames respectively, they are connected end to end in sequence and arranged obliquely. By arranging the filters obliquely, compared with the linear vertical arrangement structure of traditional filters, the inclined structure of the present invention increases the filtering area, thereby meeting the high-flow requirements of the intake filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Structural schematic diagram of the intake filtration chamber in one or some embodiments of the present invention;

[0023] Figure 2 Structural schematic diagram of the intake filtration unit in one or some embodiments of the present invention;

[0024] Figure 3 Front view of the intake filtration unit in one or some embodiments of the present invention;

[0025] Figure 4 For Figure 3 A-A sectional structure schematic diagram of

[0026] Figure 5 For Figure 2 Partial structure schematic diagram at position A of

[0027] Figure 6 For Figure 2 Partial structure schematic diagram at position B of

[0028] Figure 7 For Figure 2 Partial structure schematic diagram at position C of

[0029] Figure 8 Structural schematic diagram of the intake filtration unit at the right end of the intake filtration chamber in one or some embodiments of the present invention;

[0030] Figure 9 For Figure 8 Partial structure schematic diagram at position D of

[0031] Figure 10 Structural schematic diagram of the sewage discharge pipe.

[0032] In the figure: 1 - intake filtration unit; 101 - louver mounting frame; 102 - louver; 103 - filter mounting frame; 104 - filter; 105 - platform skeleton; 106 - bearing plate; 107 - through hole; 108 - cable tray; 109 - interlayer; 110 - sewage pipe; 111 - hinge; 112 - inspection door; 113 - door handle. Detailed implementation manners

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] The purpose of the present invention is to provide an intake filtration unit and an intake filtration chamber to solve the problems existing in the above-mentioned prior art, and can increase the filtration area and meet the high-flow demand under the premise of limited installation space dimensions.

[0035] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0036] The filters in the existing intake chamber are all vertically arranged and in a linear arrangement, forming an overall vertical filtration plane. When the installation space is limited and the volume of the filtration chamber is small, the filtration area of the filter is small. To solve this technical problem, the present invention provides an intake filtration unit, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, it includes a filter unit body, a filter mounting frame 103, and a filter 104. One end of the filter unit body is provided with an air inlet, and the other end is provided with an air outlet. A plurality of filter mounting frames 103 are connected end to end in sequence and are fixed inside the filter unit body. The filter mounting frames 103 are arranged obliquely inside the filter unit body. The filter 104 is fixedly installed at one end of the filter mounting frame 103 close to the air inlet. After the filters 104 are installed in a plurality of filter mounting frames 103, the air inlet and the air outlet can be separated. The filter 104 in this embodiment is a prior art, generally including a filter element for filtering gas, which belongs to a known structure and will not be elaborated. By arranging the filter 104 obliquely, compared with the straight vertical arrangement structure of the traditional filter 104, the inclined structure of the present invention increases the filtration area, thereby meeting the high-flow requirements of the intake filter 104. In the present invention, a plurality of filter mounting frames 103 are arranged in the filter unit body, and a filter 104 is installed in each filter mounting frame 103. After the filters 104 are respectively installed in a plurality of filter mounting frames 103, they are connected end to end in sequence and are arranged obliquely. The inclination method is not limited. It can be that the upper part of the filter mounting frame 103 inclines towards the side close to the air inlet, or the lower part of the filter mounting frame 103 inclines towards the side close to the air inlet, or it can also adopt the method that the filter mounting frame 103 is arranged in a W-shaped inclination in the intake filter unit. The filters 104 on the filter mounting frame 103 are inclined synchronously. By arranging the filter 104 obliquely, compared with the straight vertical arrangement structure of the traditional filter, the inclined structure of the present invention increases the filtration area, thereby meeting the high-flow requirements of the intake filter.

[0037] In one embodiment, the filter mounting frame 103 is a rectangular frame structure as a whole. It includes a parallel top side and bottom side, and the top side and the bottom side are fixedly connected by two parallel side sides. The rectangular area surrounded by the top side, the bottom side, and the two side sides is used to install the filter 104. A plurality of filter mounting frames 103 are connected end to end in sequence through the side sides. A baffle is welded between adjacent two filter mounting frames 103 to prevent unfiltered air from entering the rear of the filter mounting frame. The filter 104 is installed on each filter mounting frame 103, and the filter 104 filters the air to obtain clean air for the use of the gas turbine behind.

[0038] There are no restrictions on the tilting methods of the filter 104 and the filter mounting frame 103, as long as the function of increasing the filtration area can be satisfied. In one embodiment, the side edges are vertically arranged within the filter unit body, the top edges are inclinedly arranged between the top of the air inlet and the top of the air outlet of the filter unit body, the inclined directions of the top edges of two adjacent filter mounting frames 103 are opposite, the bottom edges are inclinedly arranged between the bottom of the air inlet and the bottom of the air outlet of the filter unit body, and the inclined directions of the bottom edges of two adjacent filter mounting frames 103 are opposite, so that the cross-sections of multiple filter mounting frames 103 in this embodiment are arranged in a W-shaped structure. Due to the influence of the installation environment, the maximum outer dimension of the air inlet filtration chamber is limited, and the required air intake of the gas turbine is a fixed value. When the air intake requirement is too high, in the traditional linear filter arrangement method, air needs to flow through the filter 104 at a high flow rate. At this time, the initial resistance of the filter 104 increases, which may damage the gas turbine or compressor; after arranging the filter mounting frames 103 in a W shape, the filtration area is increased, thereby reducing the flow rate of air passing through the filter 104, and then the initial resistance is reduced, so as to meet the usage requirements of high flow rate.

[0039] In another embodiment, the top edges are fixedly parallel to the top of the air inlet or the top of the air outlet, and the bottom edges are fixedly parallel to one end far from the top edges; the side edges are inclinedly arranged within the filter unit body, and the inclined directions of the side edges of two adjacent filter mounting frames 103 are the same. Thus, although multiple filter mounting frames 103 are also installed in a linear manner, their overall structure forms an inclined structure towards the air inlet end. Compared with the traditional vertically arranged linear filter structure, the filtration area is also increased in this embodiment, thereby reducing the flow rate of air passing through the filter 104, and then the initial resistance is reduced, so as to meet the usage requirements of high flow rate.

[0040] In one embodiment, a sandwich layer 109 is provided inside the side walls of the filter unit body, and sound insulation glass wool is filled in the sandwich layer 109 to prevent sound from escaping to the outside through the wall panels of the filter unit body, which may cause the failure of the sound absorption section behind the air inlet filtration chamber, so as to ensure the normal operation of the entire air intake system.

[0041] In one embodiment, a louver mounting frame 101 is welded to one end of the filter 104 of the filter unit body near the air inlet for mounting the louver 102. When the filter unit body is not working, the louver 102 can be closed, thereby isolating the filter unit body from the outside world, preventing dust from entering the filter unit body, protecting the filter 104, and extending the maintenance interval of the filter 104; mounting the louver 102 inside the filter unit body reduces the length of the entire intake system, thereby making better use of the limited space; and when replacing the filter 104, the louver 102 needs to be removed. In the form of mounting the louver 102 inside the filter unit body, when the louver 102 is removed, it can be removed one by one, thereby increasing the convenience of maintenance.

[0042] In one embodiment, two horizontally arranged platforms are provided inside the filter unit body. The platforms are located at one end of the filter mounting frame 103 near the air inlet; the platform includes a platform skeleton 105 fixedly provided inside the filter unit body, and a horizontally arranged bearing plate 106 is fixedly provided on the platform skeleton 105. The upper surface of the bearing plate 106 is provided with patterns. When replacing and maintaining the filter 104, maintenance personnel can stand on the bearing plate 106 to operate, and the two platforms can be used to maintain filters 104 at different heights.

[0043] After the filter 104 is used for a certain period of time, it needs to be cleaned. The current conventional cleaning method is to wash it by spraying; the sewage after cleaning will fall inside the filter unit body. In order to avoid the accumulation of sewage, in one embodiment, a sewage discharge pipe 110 is respectively provided between two adjacent filter mounting frames 103, as Figure 10 shown, Figure 10 is the bottom view of the intake air filter unit 1. The sewage discharge pipe 110 penetrates the bottom of the filter unit body, and a ball valve is installed on each sewage discharge pipe 110; usually the ball valve is in the closed state. When cleaning the filter 104, the ball valve is opened to discharge the sewage, thereby completing the maintenance of the filter 104.

[0044] On the basis of the above solution, the present invention further provides an intake air filter chamber, as Figure 1 shown, which includes two intake air filter units 1 as above; a connection port is provided on one side of the intake air filter unit 1; the two intake air filter units 1 are connected through the connection port, and can be disassembled and transported during transportation, saving transportation costs; and it is convenient to install the filters 104 in the two intake air filter units 1; the two intake air filter units 1 are assembled on site, and sealing gaskets are pasted on all the connection surfaces between the two intake air filter units 1, thereby sealing the intake air filter chamber to prevent unfiltered air and rainwater from directly entering the intake air filter chamber.

[0045] As Figure 8 、Figure 9 and Figure 10 As shown in Figure 10 , in this embodiment, the louver 102 adopts a louver that is electrically controlled to open and close in the prior art. The wire racks 108 are welded equidistantly on each louver mounting frame 101. The cables of the louver 102 are fixed on the corresponding wire racks 108 through cable ties. A quick-release plug is provided at the end of each group of cables. The cables of the louver 102 are connected to the external cable through the quick-connect plug. One end of the external cable away from the quick-connect plug is connected to the control box. Thus, the electric control signal can be transmitted from the control box to the electric control device of the louver 102 through the external cable and the corresponding cables, realizing the electric control of the opening and closing of the louver 102. And because the quick-release plug is provided, the cable of the louver can be conveniently disconnected from the external cable, and the external cable will not interfere with the disassembly and assembly process of the louver 102 when disassembling and assembling the louver, so as to realize the quick disassembly and assembly of the louver 102. Taking the example shown in the figure, eight through holes 107 are opened on the wall plate of the intake air filtration unit 1 at the left end. A wall-through gland is fixed in each through hole 107. The wall-through gland is a mature structure in the prior art. The external cable of each louver 102 passes through a wall-through gland respectively. The wall-through gland realizes the sealing between the external cable and the wall plate. Each external cable is assigned a wall-through gland, so that each louver 102 corresponds to its own separately provided external cable and wall-through gland, preventing the external cables from being entangled with each other when repairing a single louver 102, and thus having an adverse impact on other louvers 102. The control box is provided with a plurality of indicators corresponding to the respective louvers 102. The indicators feedback the states of the corresponding louvers 102. The cable and the external cable are marked with wire sequence marks, and the indicators correspond to the cable numbers, so as to quickly locate the cable, and then locate the louver 102, realizing the quick positioning of the cable of the louver 102 to be repaired, thereby improving the convenience of maintenance. The eight through holes 107 are arranged staggeredly, increasing the convenience of disassembling and assembling the wall-through gland.

[0046] The through-wall gland, also known as cable waterproof joint and cable fixing head, is widely used in the fixation and protection of electrical wires and cables in mechanical equipment electrical systems, ship electrical systems, and corrosion-proof equipment. Its main functions are cable fastening and sealing. Fastening means locking the cable through the gland to prevent axial displacement and radial rotation of the cable, thus ensuring normal cable connection. The purpose of sealing is to prevent dust and water ingress. In the present invention, a through-wall gland is provided on the side wall of the air intake filtering unit close to the air intake, so that the position of the through-hole 107 is sealed. When air intake filtering is carried out, the inner side of the through-hole 107 is the air intake area. The high-speed air intake flow will cause a negative pressure in the air intake area, so that the gas outside the through-hole 107 enters the air intake area through the through-hole 107. Since the equipment of the present invention is installed on devices such as ships, the outside of the through-hole 107 is generally easily wetted by waves, etc., making the gas outside the through-hole 107 humid and carrying water droplets. The air flow outside the through-hole 107 will drive the water droplets into the air intake area. To avoid this problem, the present invention provides a through-wall gland at the through-hole 107, realizing the sealing of the through-hole 107. Furthermore, when the air intake filtering unit performs air intake filtering, leakage will not occur at the through-hole 107, and water droplets, gas, etc. outside the through-hole 107 will not enter the air intake area of the air intake filtering unit through the through-hole 107.

[0047] In order to facilitate the maintenance of the position of the air intake filtering chamber at the rear end of the filter 104, in one embodiment, an access door 112 is hinged on the side of the air intake filtering unit 1 at the right end away from the connection port through a hinge 111. The side of the access door 112 away from the hinge 111 can be fixedly connected to the side wall of the air intake filtering unit 1 through bolts; so that the access door 112 can be directly opened on the air intake filtering chamber without disassembly; when opening the access door 112, the bolts on the side away from the hinge 111 need to be removed first, and then the door handle 113 on the access door 112 is pulled, and the access door 112 can be opened, and then the filtered part of the air intake filtering chamber can be repaired and maintained; in a preferred embodiment, a door handle 113 is also welded at the position of the air intake filtering unit 1 at the right end that is at the same height as the door handle 113 on the access door 112. When opening the access door 112, a safety device can be connected to this door handle 113 and this door handle 113 can be held to further improve the safety of maintenance.

[0048] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An air intake filter unit, characterized in that: include: The filter unit body has an air inlet at one end and an air outlet at the other end; A filter installation frame, wherein a plurality of the filter installation frames are connected end to end in sequence and fixed inside the filter unit body; the filter installation frames are arranged obliquely inside the filter unit body; The filter is fixedly mounted on one end of the filter mounting frame close to the air inlet, and after the filters are mounted in a plurality of the filter mounting frames, the air inlet and the air outlet can be separated.

2. The air intake filter unit according to claim 1, characterized in that: The filter installation frame includes a parallel top edge and a bottom edge, the top edge and the bottom edge are fixedly connected by two parallel side edges, and the area surrounded by the top edge, the bottom edge and the two side edges is used to install the filter; multiple filter installation frames are connected end to end in sequence through the side edges.

3. The air intake filter unit according to claim 2, characterized in that: The side edge is vertically arranged in the filter unit body, the top edge is obliquely arranged between the top of the air inlet and the top of the air outlet of the filter unit body, and the top edges of two adjacent filter mounting frames are inclined in opposite directions, the bottom edge is obliquely arranged between the bottom of the air inlet and the bottom of the air outlet of the filter unit body, and the bottom edges of two adjacent filter mounting frames are inclined in opposite directions.

4. The air intake filter unit according to claim 2, characterized in that: The top edge is fixed in parallel to the top of the air inlet or the top of the air outlet, and the bottom edge is fixed in parallel to an end away from the top edge; the side edges are arranged obliquely in the filter unit body, and the side edges of two adjacent filter mounting frames have the same inclination direction.

5. The air intake filter unit according to claim 1, characterized in that: A shutter installation frame is fixedly provided at one end of the filter unit body close to the air inlet, and a shutter is arranged inside the shutter installation frame; a wiring rack is provided on the shutter installation frame, and one end of the cable of the shutter is passed through the wiring rack.

6. The air intake filter unit according to claim 1, characterized in that: A horizontally arranged walkway is provided in the filter unit body, and the walkway is located at one end of the filter installation frame close to the air inlet; the walkway includes a walkway frame fixed in the filter unit body, a horizontally arranged bearing plate is fixed on the walkway frame, and a pattern is provided on the upper surface of the bearing plate.

7. The air intake filter unit according to claim 1, characterized in that: A sewage pipe is arranged between two adjacent filter installation frames, the sewage pipe runs through the bottom of the filter unit body, and a ball valve is installed on each sewage pipe.

8. The air intake filter unit according to claim 1, characterized in that: The side walls of the filter unit body are each provided with an interlayer, and the interlayer is filled with sound-insulating glass wool.

9. An air intake filter chamber, characterized in that: It comprises two air intake filter units as described in any one of claims 1 to 8; a connecting port is provided on one side of the air intake filter unit; the two air intake filter units are connected through the connecting port, and a sealing gasket is provided at the connecting position.

10. The air intake filter chamber according to claim 9, characterized in that: One of the air inlet filter units is hinged with an inspection door on one side away from the connecting port, and the inspection door is located at one end of the air inlet filter unit close to the air outlet.

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