Dust filling and collecting equipment

Abstract

The utility model discloses dust filling and collecting equipment, and relates to the related technical field of filter testing. The device comprises a test bed, a filter shell, a communicating port and a bottom plate, a mounting frame is fixed to the upper portion of one side of the test bed, the filter shell is vertically and movably connected into the mounting frame in a penetrating mode, a fixing sleeve is fixed to the inner wall of the filter shell, an adsorption sleeve is fixed to the inner wall of the fixing sleeve, the bottom end of the filter shell is fixedly communicated with an adapter pipe, and the bottom end of the adapter pipe is fixedly communicated with the communicating port. The upper part of the peripheral side of the communication port fixedly communicates with a backflow joint. A bottom plate is fixed at the bottom of the test bench. Through the arrangement of the test bed, the filter shell, the communication port and the bottom plate, the problems that extra weighing equipment is needed to be matched in the test process of the filter, the operation applicability is not good enough, and extra dust is easily caused to enter the test bed when high-pressure air is recycled are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of filter testing, and in particular relates to a dust filling and collection device. Background Technology

[0002] The efficiency testing of coarse and medium-efficiency air filters typically employs the mass method. The testing principle involves installing the filter in a standard test wind tunnel, continuously generating dust from the upwind end, and measuring the mass of dust passing through the filter at regular intervals. This yields the filtration efficiency calculated based on the dust mass during that period. However, this method still has the following drawbacks in practical use:

[0003] During the filter testing process, dust and air are directly mixed in the test bench and then uniformly delivered to the collection device. After the test is completed and the filter is removed, an additional weighing device is required to weigh it in order to determine the filter efficiency of the tested filter. The equipment is not very user-friendly.

[0004] During the filter testing process, air is directly introduced into the filter under test and then transported to the test bench for high-pressure air recirculation. During long-term operation, this can easily cause additional dust to enter the test bench, affecting the operation of the test bench. Utility Model Content

[0005] The purpose of this utility model is to provide a dust filling and collection device. By setting up a test bench, filter shell, connecting port and base plate, it solves the problems that require additional weighing equipment during the filter testing process, have poor operability, and that the recovery of high-pressure air can easily cause additional dust to enter the test bench.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a dust collection and filling device, comprising a test bench, a filter housing, a connecting port, and a base plate. A mounting frame is fixed to the upper part of one side of the test bench. A filter housing is vertically and movably connected within the mounting frame. A fixing sleeve is fixed to the inner wall of the filter housing, and an adsorption sleeve is fixed to the inner wall of the fixing sleeve. A transfer pipe is fixedly connected to the bottom end of the filter housing, and a connecting port is fixedly connected to the bottom end of the transfer pipe. A return connector is fixedly connected to the upper periphery of the connecting port. A base plate is fixed to the bottom of the test bench. During operation, high-pressure air is input through the test bench, mixing the high-pressure air with dust, and then conveying it to the filter being tested. The air filtered in the filter is then conveyed to the connecting port, and through the connecting port to the transfer pipe, and then back into the filter housing for filtration before being returned to the test bench for reuse.

[0008] Furthermore, a weighing scale is embedded and fixed on the top surface in front of the test bench panel, and two valve switches are fixed on the test bench panel and distributed along the transverse center line, so that the weight of the filter under test before and after the test is measured by the weighing scale during the test.

[0009] Furthermore, the test bench is fixedly connected to an electric control valve one and an electric control valve two on the side near the filter housing. The electric control valve one is located below the electric control valve two. The output ends of both the electric control valve one and the electric control valve two are fixedly connected to a connector. When the test bench is working, it tests filters of different lengths through the electric control valve one and the electric control valve two.

[0010] Furthermore, a U-shaped return pipe is fixedly connected to the top of the test bench, and a sealing cap is fixedly connected to the end of the return pipe away from the test bench. An air supply pipe is fixedly connected to the side of the test bench away from the filter housing. The filtered air in the filter is transported to the return pipe through the sealing cap and then to the test bench through the return pipe.

[0011] Furthermore, a mounting plate is fixed to the top of the filter housing, the mounting plate is set on the top of the mounting frame, the bottom end of the sealing cover is fixedly connected to the top end of the mounting plate, and an inner filter element is fixedly fixed to the bottom of the filter housing. The inner filter element is fixedly connected to the adapter pipe, so that when working, the returning air enters the filter housing for filtration.

[0012] Furthermore, the connecting port is fixed to the top of the base plate, and omnidirectional wheels are fixed at the four corners of the bottom of the base plate. When the connecting port is in operation, it is supported by the omnidirectional wheels to assist in movement.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of insufficient operability and the need for additional weighing equipment during filter testing by setting up a test bench, connecting port, and base plate. The air filter to be tested is placed on the weighing scale on the test bench, and its weight is measured. The air supply pipe is connected to the external high-pressure air supply equipment. The air filter to be tested can then be positioned below the filter to determine its height. The input end of the filter is then connected to the corresponding solenoid valve one or two, and the output end of the filter is connected to the return connector on the connecting port. The corresponding valve switch is then opened to allow the air and dust mixture to be delivered into the filter. After filtering in the filter for the corresponding experimental time (determined according to the filter's experimental requirements), the filter is removed, and then weighed again using the weighing scale to determine the amount of dust filtered by the air filter. This eliminates the need for additional weighing equipment during filter testing, improving operability.

[0015] This invention solves the problem of additional dust entering the test bench during filter testing by setting up a test bench, filter housing, connecting port, and base plate. The air entering the connecting port is transported to the transfer pipe, and then to the inner filter element inside the filter housing. After being filtered by the inner filter element, the air is transported to the fixed sleeve, where it is further adsorbed by the adsorption sleeve on the inner wall of the fixed sleeve. Finally, it is transported to the return pipe through the sealing cover and recycled back to the test bench. This reduces the amount of additional dust entering the test bench due to the reuse of air and increases the energy efficiency of the test bench. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a dust filling and collection device;

[0018] Figure 2 This is a 3D view of the filter housing structure;

[0019] Figure 3 Front view of a dust filling and collection device;

[0020] Figure 4 A top view of a dust filling and collection device;

[0021] Figure 5 Left view of a dust filling and collection device.

[0022] Figure label:

[0023] 1. Test bench; 101. Electric control valve one; 102. Electric control valve two; 103. Connecting nozzle; 104. Return pipe; 105. Sealing cover; 106. Weighing scale; 107. Gas supply pipe; 108. Valve switch; 109. Mounting bracket; 2. Filter housing; 201. Mounting plate; 202. Inner filter element; 203. Fixing sleeve; 204. Adsorption sleeve; 3. Connecting port; 301. Adapter pipe; 302. Return connector; 4. Base plate; 401. Casters. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0025] Please see Figure 1-5 This utility model is a dust filling and collection device, including a test bench 1, a filter housing 2, a connecting port 3, and a base plate 4. A mounting bracket 109 is fixed to the upper part of one side of the test bench 1. (The test bench 1 has been disclosed in the existing known patent CN111442939A, so it will not be described in detail here.) The test bench 1 mixes the incoming air with dust and delivers it to either an electrically controlled valve 101 or an electrically controlled valve 102. During operation, the filter housing 2 is mounted on the mounting bracket 109. The mounting bracket 109 has a vertically penetrating and movably connected filter housing 2. When operating through the filter housing 2, the air that still contains dust after being filtered by the air filter is further filtered. A fixing sleeve 2 is fixed to the inner wall of the filter housing 2. 03. An adsorption sleeve 204 is fixed on the inner wall of the fixed sleeve 203. The adsorption sleeve 204 is fixed inside the fixed sleeve 203, and the dust entering the adsorption sleeve 204 is further adsorbed. The bottom end of the filter shell 2 is fixedly connected to the adapter pipe 301. The bottom end of the adapter pipe 301 is fixedly connected to the connecting port 3. The upper part of the periphery of the connecting port 3 is fixedly connected to the return connector 302. The filter shell 2 is connected to the connecting port 3 through the adapter pipe 301. When the return connector 302 is working, it is connected to the output end of the filter element under test, so that the air output from the filter element under test is delivered to the connecting port 3, and then delivered to the filter shell 2 through the adapter pipe 301. The bottom of the test bench 1 is fixedly connected to the base plate 4. When the base plate 4 is working, the test bench 1 is supported on it.

[0026] Specifically, a weighing scale 106 is embedded and fixed on the top surface in front of the test bench 1 panel. Two valve switches 108 are fixed on the test bench 1 panel and distributed along the horizontal center line. When the test bench 1 is working, the weighing scale 106 weighs the filter element before and after the test to test the dust holding weight in the filter element. The valve switch 108 near the center of the test bench 1 panel controls the switch of the second electric valve 102, and the valve switch 108 away from the center of the test bench 1 panel controls the switch of the first electric valve 101.

[0027] Furthermore, an electric control valve 101 and an electric control valve 102 are fixedly connected to the side of the test bench 1 near the filter housing 2. The electric control valve 101 is located below the electric control valve 102. The output ends of both the electric control valve 101 and the electric control valve 102 are fixedly connected to a connector 103. When the test bench 1 is working, the air and dust mixture is transported to the connector 103 through the electric control valve 101 or the electric control valve 102. After the connector 103 is connected to the air filter, the air and dust are transported to the air filter under test.

[0028] Furthermore, a U-shaped return pipe 104 is fixedly connected to the top of the test bench 1. A sealing cap 105 is fixedly connected to the end of the return pipe 104 away from the test bench 1. An air supply pipe 107 is fixedly connected to the side of the test bench 1 away from the filter housing 2. When the test bench 1 is working, the purified air in the filter housing 2 is returned to the test bench 1 for reuse through the return pipe 104. The air supply pipe 107 is connected to an external high-pressure air supply device, so that high-pressure air is supplied to the test bench 1 for operation.

[0029] The operation process of this embodiment is as follows: During operation, the air filter to be tested is first placed on the weighing scale 106 on the test bench to measure the weight of the air filter to be tested. The air supply pipe 107 is connected to the external equipment for supplying high-pressure air. Then, the air filter to be tested is set below the filter to determine the height of the filter. Then, the input end of the filter is connected to the corresponding solenoid valve 101 or solenoid valve 2 102. Then, the output end of the filter is connected to the return connector 302 on the connection port 3. Then, the corresponding valve switch 108 is opened to allow the mixture of air and dust to be transported into the filter. After filtering in the filter for the corresponding test time (determined according to the test requirements of the filter), the filter is removed and weighed again by the weighing scale 106 to determine the amount of dust filtered by the air filter to be tested. Specific Implementation Example 2

[0030] Please see Figure 1 , 2Based on the first specific embodiment, a mounting plate 201 is fixed on the top of the filter housing 2. The mounting plate 201 is set on the top of the mounting frame 109. The bottom end of the sealing cover 105 is fixedly connected to the top end of the mounting plate 201. An inner filter element 202 is fixedly fixed at the bottom of the filter housing 2. The inner filter element 202 is fixedly connected to the adapter pipe 301. When the filter housing 2 is working, the mounting plate 201 provides installation between it and the mounting frame 109. The air returning in the adapter pipe 301 is delivered to the inner filter element 202 inside the filter housing 2 through the inner filter element 202.

[0031] Specifically, the connecting port 3 is fixed to the top of the base plate 4, and four casters 401 are fixed at the four corners of the bottom of the base plate 4. The base plate 4 is supported on the ground by the casters 401 and moves in conjunction with the test bench 1.

[0032] The operation process of this embodiment is as follows: Before the experiment, the test bench 1 is pushed first. The casters 401 at the bottom of the base plate 4 drive the test bench 1 to a suitable position. After the filter is installed, the test can be carried out. During operation, the air entering the connecting port 3 is delivered to the transfer pipe 301, and then delivered to the inner filter element 202 in the filter housing 2 through the transfer pipe 301. After being filtered by the inner filter element 202, it is delivered to the fixed sleeve 203. Then, the dust is further adsorbed by the adsorption sleeve 204 on the inner wall of the fixed sleeve 203, and then delivered to the return pipe 104 through the sealing cover 105. It is then returned to the test bench 1 through the return pipe 104 for recycling, reducing the additional dust entering the test bench 1 caused by the return of air.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dust filling and collection device, comprising a test bench (1), a filter shell (2), a connecting port (3), and a base plate (4), characterized in that: A mounting bracket (109) is fixed on the upper side of one side of the test bench (1). A filter shell (2) is vertically and movably connected inside the mounting bracket (109). A fixing sleeve (203) is fixed on the inner wall of the filter shell (2). An adsorption sleeve (204) is fixed on the inner wall of the fixing sleeve (203). A connecting pipe (301) is fixedly connected to the bottom end of the filter shell (2). A connecting port (3) is fixedly connected to the bottom end of the connecting pipe (301). A return connector (302) is fixedly connected to the upper periphery of the connecting port (3). A base plate (4) is fixed to the bottom of the test bench (1).

2. The dust filling and collection device according to claim 1, characterized in that: A weighing scale (106) is embedded and fixed on the top surface in front of the panel of the test bench (1), and two valve switches (108) are fixed on the panel of the test bench (1) along the transverse center line.

3. The dust filling and collection device according to claim 2, characterized in that: The test bench (1) is fixedly connected to an electric control valve one (101) and an electric control valve two (102) on the side near the filter shell (2). The electric control valve one (101) is located below the electric control valve two (102). The output ends of the electric control valve one (101) and the electric control valve two (102) are both fixedly connected to a connector (103).

4. The dust filling and collection device according to claim 3, characterized in that: The top of the test bench (1) is fixedly connected to a U-shaped return pipe (104), and the end of the return pipe (104) away from the test bench (1) is fixedly connected to a sealing cap (105). The side of the test bench (1) away from the filter shell (2) is fixedly connected to a gas supply pipe (107).

5. A dust filling and collection device according to claim 4, characterized in that: The top of the filter housing (2) is fixed with an installation plate (201), which is located on the top of the mounting frame (109). The bottom end of the sealing cover (105) is fixedly connected to the top of the installation plate (201). The inner bottom of the filter housing (2) is fixed with an inner filter element (202), which is fixedly connected to the adapter pipe (301).

6. The dust filling and collection device according to claim 1, characterized in that: The connecting port (3) is fixed to the top of the base plate (4), and casters (401) are fixed at the four corners of the bottom of the base plate (4).

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