High efficiency particulate air filter performance test apparatus
By designing adjustment and auxiliary mechanisms, the problems of cleaning difficulty and testing accuracy caused by oil deposits have been solved, enabling rapid disassembly and sealing of the high-efficiency air filter performance testing device, thus improving testing efficiency and result accuracy.
Patent Information
- Application Number
- CN202521596306.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-07-29
AI Technical Summary
In existing high-efficiency air filter performance testing equipment, oil stains are easily volatilized and deposited on the inner surface of the equipment, increasing the difficulty of cleaning and affecting the accuracy of testing.
The design incorporates adjustment and auxiliary mechanisms, including an adjustment plate, insertion rod, compression spring, closing ring, and telescopic hydraulic cylinder, to achieve rapid separation and automatic sealing between the filter housing and the oil stain detection tester, reducing manual operation steps and improving detection efficiency and accuracy.
The automated sealing and separation design significantly reduces filter replacement and cleaning steps, ensuring the accuracy and consistency of test results, preventing airflow leakage, and improving test preparation and maintenance efficiency.
Smart Images
Figure CN224399209U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter testing technology, and in particular to a testing device for testing the performance of high-efficiency air filters. Background Technology
[0002] Generally, air conditioning filters are installed in clean environments to remove particulate matter from external or recirculated air, ensuring the cleanliness of the air blown out by the air conditioner and meeting environmental cleanliness requirements. However, different air conditioning filters have significantly different filtration capabilities, specifically in terms of filter resistance, grading efficiency, and dust holding capacity. If a substandard filter is used, the cleanliness of the enclosed environment cannot be guaranteed. Therefore, filters are tested using performance testing equipment.
[0003] The high-efficiency air filter performance testing device is mainly used to test the filtration efficiency, resistance and other performance indicators of high-efficiency air filters. It uses atomization drying method to artificially generate NaCl aerosol in the range of MPPS close to that of the filter material for testing. The NaCl aerosol upstream and downstream of the filter is collected in a burner and burned under a hydrogen flame. The sodium flame light generated by the combustion is converted into an electric current signal and detected by a photoelectric measuring instrument. The filtration efficiency of the filter is calculated using the measured current value.
[0004] The existing filter performance testing device has the following drawbacks: during the oil stain test, the turbine oil mist is easily volatilized, forming oil vapor aerosol. Due to the interconnection of components and the relatively narrow interior, it is inconvenient for personnel to collect and clean the oil stains in a timely manner, resulting in the oil stains accumulating on the inner surface of the equipment, increasing the difficulty of subsequent cleaning and the accuracy of the test. Therefore, a high-efficiency air filter performance testing device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a high-efficiency air filter performance testing device, which aims to improve the problem that the internal space of the existing technology is relatively narrow, making it inconvenient for personnel to collect and clean oil stains in a timely manner, resulting in oil stains depositing on the inner surface of the equipment, increasing the difficulty of subsequent cleaning and the accuracy of testing.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a high-efficiency air filter performance testing device, including a bracket and an oil stain detection tester. The oil stain detection tester is fixedly connected to the top outer wall of the bracket. A test and detection control box is fixedly connected to the front outer wall of the bracket. A filter placement cover is fixedly connected to the right outer wall of the bracket. An adjustment mechanism is provided on the filter placement cover. An auxiliary mechanism is provided on the adjustment mechanism. A docking cover is in contact with the outer wall of the filter placement cover. A sub-frame is fixedly connected to the right outer wall of the docking cover. The adjustment mechanism includes a positioning groove, which is formed on the top outer wall of the oil stain detection tester. A closed ring is slidably connected to the top inner wall of the positioning groove. An adjustment plate is slidably connected to the top inner wall of the closed ring. A plug rod is fixedly connected to the bottom outer wall of the adjustment plate. A compression spring is fixedly connected to the top outer wall of the adjustment plate.
[0007] As a further description of the above technical solution: the auxiliary mechanism includes a sliding rod that passes through the inner walls of the left and right sides of the bracket. The left and right ends of the sliding rod are fixedly connected to a base. A telescopic hydraulic cylinder is fixedly connected to the inner wall of the right side of the base. A sealing plate is fixedly connected to the outer wall of the right side of the filter placement cover. A slot is provided on the inner wall of the right side of the sealing plate. An insert plate is fixedly connected to the outer wall of the left side of the docking cover.
[0008] As a further description of the above technical solution: the closed ring is slidably connected to the outer side wall of the oil stain detection tester, and the inner diameter of the closed ring is adapted to the outer diameter of the oil stain detection tester.
[0009] As a further description of the above technical solution: the top and bottom outer walls of the adjustment plate are fixedly connected to the adjustment plate, and the top and bottom outer walls of the adjustment plate are fixedly connected to the frosted pads.
[0010] As a further description of the above technical solution: a steel sleeve is fixedly connected to the outer side wall of the insertion rod, the insertion rod passes through the bottom inner wall of the positioning groove, and the end of the compression spring away from the adjusting plate is fixedly connected to the top inner wall of the closed ring.
[0011] As a further description of the above technical solution: the output end of the telescopic hydraulic cylinder is fixedly connected to the outer right side wall of the bracket, and a sealing ring is fixedly connected to the inner side wall of the slot.
[0012] As a further description of the above technical solution: the insert plate is inserted into the inner wall of the right side of the slot, and the sealing plate has a frame-like shape.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the linkage design of the adjusting plate, the insertion rod and the compression spring in the adjusting mechanism, combined with the sliding structure of the closed ring along the positioning groove, enables the rapid separation of the filter placement cover and the oil stain detection tester; the auxiliary mechanism uses a telescopic hydraulic cylinder to drive the support to move, automatically completing the insertion and sealing of the slot and the insertion plate, replacing the traditional manual fastening method, significantly reducing the operation steps of filter replacement and device cleaning, and greatly improving the efficiency of test preparation and maintenance.
[0015] 2. In this utility model, the closed ring of the appropriate size fits tightly with the oil stain detection tester. Combined with the sealing plate, sealing ring and frame structure design, air leakage during the test is effectively prevented. At the same time, the bracket provides stable support, and the adjustment plate frosted pad enhances the operational stability and the insertion rod steel sleeve improves the structural strength, ensuring the long-term reliability of the oil stain detection tester under high-precision operation and ensuring the accuracy and consistency of the test results. Attached Figure Description
[0016] Figure 1 This is a schematic front view of the overall high-efficiency air filter performance testing device proposed in this utility model;
[0017] Figure 2 This is a split diagram of the high-efficiency air filter performance testing device proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the adjustment mechanism of the high-efficiency air filter performance testing device proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the auxiliary mechanism of the high-efficiency air filter performance testing device proposed in this utility model.
[0020] Legend:
[0021] 1. Bracket; 2. Oil stain detection tester; 3. Test and control cabinet; 4. Filter housing; 42. Docking cover; 43. Sub-frame; 5. Adjustment mechanism; 51. Positioning groove; 52. Closing ring; 53. Adjustment plate; 54. Insert rod; 55. Compression spring; 6. Auxiliary mechanism; 61. Sliding rod; 62. Base; 63. Telescopic hydraulic cylinder; 64. Sealing plate; 65. Slot; 66. Insert plate. Detailed Implementation
[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Reference Figures 1-3 This utility model provides an embodiment of a high-efficiency air filter performance testing device, including a support 1 and an oil stain testing device 2. The oil stain testing device 2 is fixedly connected to the top outer wall of the support 1. A test control box 3 is fixedly connected to the front outer wall of the support 1. The support 1 provides stable support for the entire device, ensuring that the oil stain testing device 2 remains stable during the testing process and avoiding the impact of shaking on the testing accuracy. As a core testing component, the oil stain testing device 2 can quantitatively analyze the oil filtration performance of the filter. A filter placement cover 4 is fixedly connected to the right outer wall of the support 1. The filter placement cover 4 is used to accommodate the high-efficiency air filter to be tested, providing a closed test space for the testing process and preventing external environmental interference with the test results. An adjustment mechanism 5 is provided on the filter placement cover 4, and an auxiliary mechanism 6 is provided on the adjustment mechanism 5. The outer wall of the filter placement cover 4 contacts a docking cover 42. A sub-frame 43 is fixedly connected to the right outer wall of the docking cover 42. The adjustment mechanism 5 includes a positioning groove 51, which is opened on the top outer wall of the oil stain testing device 2. A closing ring 52 is slidably connected to the top inner wall of the positioning groove 51. The closing ring 52 can slide along the positioning groove 51. By moving it, the connection between the filter placement cover 4 and the oil stain testing device 2 can be locked or unlocked, which facilitates the disassembly and maintenance of the device. An adjustment plate 53 is slidably connected to the top inner wall of the closing ring 52. A plug rod 54 is fixedly connected to the bottom outer wall of the adjustment plate 53. A compression spring 55 is fixedly connected to the top outer wall of the adjustment plate 53.
[0024] Reference Figures 2-4 The closed ring 52 is slidably connected to the outer side wall of the oil stain tester 2. The inner diameter of the closed ring 52 is matched with the outer diameter of the oil stain tester 2. The matching size ensures that the closed ring 52 and the oil stain tester 2 fit tightly, enhancing the connection stability and avoiding sealing failure due to excessive gap. The top and bottom outer walls of the adjusting plate 53 are fixedly connected to the adjusting plate 53. The top and bottom outer walls of the adjusting plate 53 are fixedly connected to the abrasive pads. The outer side wall of the insertion rod 54 is fixedly connected to the steel sleeve. The abrasive pad increases the friction of the surface of the adjusting plate 53, preventing slippage when the operator pulls the adjusting plate 53 and improving the reliability of operation. The steel sleeve enhances the structural strength of the insertion rod 54, improves its wear resistance and deformation resistance, and extends the service life of the insertion rod 54. The insertion rod 54 passes through the bottom inner wall of the positioning groove 51. The end of the compression spring 55 away from the adjusting plate 53 is fixedly connected to the top inner wall of the closed ring 52.
[0025] Reference Figures 3-4The auxiliary mechanism 6 includes a sliding rod 61, which passes through the inner walls of the left and right sides of the support 1. Bases 62 are fixedly connected to both ends of the sliding rod 61. A telescopic hydraulic cylinder 63 is fixedly connected to the inner right side of the base 62. The telescopic hydraulic cylinder 63 serves as a power source, driving the support 1 to move along the sliding rod 61 through telescopic movement, thereby achieving automatic docking and separation of the filter placement cover 4 and the docking cover 42, improving operational efficiency. A sealing plate 64 is fixedly connected to the outer right side of the filter placement cover 4. A slot 65 is provided on the inner right side of the sealing plate 64 for... An insert plate 66 is fixedly connected to the left outer wall of the housing 42. The output end of the telescopic hydraulic cylinder 63 is fixedly connected to the right outer wall of the bracket 1. A sealing ring is fixedly connected to the inner side wall of the slot 65. The sealing ring further enhances the sealing performance at the connection between the slot 65 and the insert plate 66, preventing airflow from leaking from the joint gap. The insert plate 66 is inserted into the inner right wall of the slot 65. The sealing plate 64 has a frame-like shape. The frame-like sealing plate 64 can form a complete sealing area around the edge of the filter housing 4, ensuring the sealing and stability of the joint.
[0026] Working principle: After the performance test of a single filter is completed, when it is necessary to clean the internal oil stains, the adjusting plate 53 is pulled to move the insertion rod 54. The insertion rod 54 moves and separates from the top inner wall of the positioning groove 51. Then, the closing ring 52 is pulled to separate from the surface of the oil stain detection tester 2, so that the filter placement cover 4 and the docking cover 42 can be easily disassembled. This allows personnel to easily and quickly clean the internal inner wall, greatly reducing the maintenance time between subsequent filter intervals, thereby achieving high efficiency in filter performance testing. At the same time, when changing filters, which involves the cumbersome opening and closing of the filter placement cover 4, the telescopic hydraulic cylinder 63 is opened to drive the bracket 1 to move left and right on the sliding rod 61. The movement of the bracket 1 drives the oil stain detection tester 2 to move, and the movement of the oil stain detection tester 2 drives the filter placement cover 4 to move, so that the slot 65 and the insertion plate 66 can be inserted, and the joint between the filter placement cover 4 and the docking cover 42 can be quickly sealed. This improves the time required for assembly with additional self-locking tools in the traditional joint opening, and improves the efficiency of testing.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency air filter performance testing device, comprising a support (1) and an oil stain detection tester (2), characterized in that: The oil stain testing device (2) is fixedly connected to the top outer wall of the bracket (1). The front outer wall of the bracket (1) is fixedly connected to the test and detection control box (3). The right outer wall of the bracket (1) is fixedly connected to the filter placement cover (4). The filter placement cover (4) is provided with an adjustment mechanism (5). The adjustment mechanism (5) is provided with an auxiliary mechanism (6). The outer wall of the filter placement cover (4) contacts the docking cover (42). The right outer wall of the docking cover (42) is fixedly connected to the sub-frame (43). The adjustment mechanism (5) includes a positioning groove (51), which is located on the top outer wall of the oil stain tester (2). A closed ring (52) is slidably connected to the top inner wall of the positioning groove (51), and an adjustment plate (53) is slidably connected to the top inner wall of the closed ring (52). A plug rod (54) is fixedly connected to the bottom outer wall of the adjustment plate (53), and a compression spring (55) is fixedly connected to the top outer wall of the adjustment plate (53).
2. The high-efficiency air filter performance testing device according to claim 1, characterized in that: The auxiliary mechanism (6) includes a sliding rod (61) that passes through the inner walls of the left and right sides of the bracket (1). The left and right ends of the sliding rod (61) are fixedly connected to a base (62). The inner wall of the right side of the base (62) is fixedly connected to a telescopic hydraulic cylinder (63). The outer wall of the filter placement cover (4) is fixedly connected to a sealing plate (64). The inner wall of the right side of the sealing plate (64) is provided with a slot (65). The outer wall of the docking cover (42) is fixedly connected to a plug plate (66).
3. The high-efficiency air filter performance testing device according to claim 1, characterized in that: The closed ring (52) is slidably connected to the outer side wall of the oil stain detection tester (2), and the inner diameter of the closed ring (52) is adapted to the outer diameter of the oil stain detection tester (2).
4. The high-efficiency air filter performance testing device according to claim 1, characterized in that: The top and bottom sides of the adjustment plate (53) are fixedly connected to the adjustment plate (53), and the top and bottom sides of the adjustment plate (53) are fixedly connected to the frosted pads.
5. The high-efficiency air filter performance testing device according to claim 1, characterized in that: A steel sleeve is fixedly connected to the outer side wall of the insertion rod (54), the insertion rod (54) passes through the bottom inner wall of the positioning groove (51), and the end of the compression spring (55) away from the adjusting plate (53) is fixedly connected to the top inner wall of the closing ring (52).
6. The high-efficiency air filter performance testing device according to claim 2, characterized in that: The output end of the telescopic hydraulic cylinder (63) is fixedly connected to the outer right side wall of the bracket (1), and a sealing ring is fixedly connected to the inner side wall of the slot (65).
7. The high-efficiency air filter performance testing device according to claim 2, characterized in that: The insert plate (66) is inserted into the inner wall of the right side of the slot (65), and the sealing plate (64) has a frame-shaped appearance.