Filter cartridge sealing performance testing apparatus and method

Abstract

Provided in the present invention are a filter cartridge sealing performance testing apparatus and method. The filter cartridge sealing performance testing apparatus comprises: an air intake mechanism, which is arranged on one side of a filter cartridge under test; an air exhaust mechanism, which is arranged on the other side of said filter cartridge, wherein an airflow test channel is formed between the air intake mechanism and the air exhaust mechanism, and said filter cartridge is placed in the airflow test channel; a frame, which is connected to the air intake mechanism and the air exhaust mechanism, and is used for driving the air intake mechanism and the air exhaust mechanism to vertically move along said filter cartridge; and testing members, which are respectively arranged on the sides of said filter cartridge adjacent to the air intake mechanism and the air exhaust mechanism, and cooperate with the frame to test the sealing performance of said filter cartridge. The filter cartridge sealing performance testing apparatus uses gas testing to replace isopropanol soaking testing commonly used for liquid filter cartridges, avoiding contamination of a filter cartridge by isopropanol and eliminating the need for post-treatment operations, while also applying to testing of both the liquid filter cartridges and gas filter cartridges.

Description

Filter element sealing test device and method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application 202311434906.X, filed on October 31, 2023, entitled “Filter Element Sealing Test Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present invention relates to the field of filtration technology, and in particular to a filter element sealing test device and method. Background Art

[0004] With the increasing application of filter elements, the importance of filter element sealing testing has gradually become more prominent, especially for usage scenarios that may lead to major safety accidents.

[0005] It should be noted that filter elements usually need to undergo a structural tightness test on the entire batch before leaving the factory. The existing structural tightness test of water filter elements is to test the initial bubbling point by immersing the filter element in isopropyl alcohol. The pressure and location of the bubbling point are used to determine whether the filter element structure is damaged. This testing method usually leads to the following problems:

[0006] (1) Isopropyl alcohol needs to be reused, and some external impurities will inevitably be brought into the filter element during the test process. The re-cleaning of the filter element after the test increases the difficulty of operation and the test cost;

[0007] (2) Isopropyl alcohol has a pungent odor, and testers need to wear protective gear when operating. The large amount of isopropyl alcohol used when testing large-size filter elements will also cause safety hazards, so there are certain requirements for the test site.

[0008] Based on this, the present invention proposes a filter element sealing test device and method to solve the above technical problems.

[0009] Summary of the Invention

[0010] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a filter element sealing test device and method, which adopts gas detection instead of the isopropyl alcohol immersion test commonly used in liquid filter elements, thereby overcoming the problems of high cost and safety hazards in the process of liquid filter element sealing test.

[0011] A first aspect of the present invention provides a filter element sealing test device, comprising:

[0012] The air intake mechanism is arranged on one side of the filter element to be tested;

[0013] An air outlet mechanism is provided on the other side of the filter element to be tested, an air flow test channel is formed between the air inlet mechanism and the air outlet mechanism, and the filter element to be tested is placed in the air flow test channel;

[0014] A bracket, connected to the air inlet mechanism and the air outlet mechanism, and used to drive the air inlet mechanism and the air outlet mechanism to move vertically along the filter element to be tested;

[0015] The detection components are respectively arranged on a side of the filter element to be tested adjacent to the air inlet mechanism and a side adjacent to the air outlet mechanism, and cooperate with the bracket to detect the sealing performance of the filter element to be tested.

[0016] Preferably, the bracket comprises:

[0017] A first connecting rod connected to the air inlet mechanism and a second connecting rod connected to the air outlet mechanism, the first connecting rod and the second connecting rod are connected by a top rod, and a telescopic rod is provided on the top rod, and the telescopic rod is used to drive the first connecting rod and the second connecting rod to move vertically along the filter element to be tested.

[0018] Preferably, the first connecting rod and the second connecting rod are both U-shaped rods.

[0019] The first connecting end of the first connecting rod is inserted into the first mounting hole of the air intake mechanism.

[0020] The second connecting end of the second connecting rod is inserted into the second mounting hole of the air outlet mechanism.

[0021] Preferably, the filter element to be tested is a hollow cylindrical shape.

[0022] The air outlet mechanism is sleeved on the outside of the air inlet mechanism, and the first opening side of the air inlet mechanism and the second opening side of the air outlet mechanism are both arranged toward the filter element to be tested.

[0023] The filter element to be tested is inserted into the airflow testing channel.

[0024] Preferably, the filter element to be tested is in the shape of a cube.

[0025] The air inlet mechanism and the air outlet mechanism are spaced apart, the air inlet mechanism is arranged inside the air outlet mechanism, and the first opening side of the air inlet mechanism and the second opening side of the air outlet mechanism are both arranged toward the filter element to be tested.

[0026] The filter element to be tested is inserted into the airflow testing channel.

[0027] Preferably, at least one heater is provided in the air intake mechanism.

[0028] The detection component is a temperature sensor and / or a flow sensor, and the temperature sensor and / or the flow sensor are arranged on the inner side and the outer side of the filter element to be tested.

[0029] Preferably, at least one suction hole is provided on the outer side of the air outlet mechanism, and a suction pipe is detachably mounted on the suction hole.

[0030] Preferably, at least one partition is provided in the air intake mechanism, and the partition divides the air intake mechanism into a plurality of compartments, and each compartment is provided with the heater;

[0031] At least one partition plate is provided in the air outlet mechanism, and the partition plate divides the air outlet mechanism into a plurality of partition spaces, and each of the partition spaces is connected to the suction pipe;

[0032] The partition chambers correspond to the partition spaces one by one.

[0033] Preferably, the air inlet mechanism and the air outlet mechanism are both provided with flexible rubber seals on one side adjacent to the filter element to be tested.

[0034] A second aspect of the present invention provides a filter element sealing test method, using the filter element sealing test device as described above, comprising the following steps:

[0035] Step S1: placing the filter element to be tested into the airflow test channel, and placing the detection components on both the side of the filter element to be tested adjacent to the air inlet mechanism and the side adjacent to the air outlet mechanism;

[0036] Step S2: starting the detection component, and driving the air inlet mechanism and the air outlet mechanism to move vertically up and down along the filter element to be tested through the bracket, so as to detect the sealing performance of the filter element to be tested at different heights.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The filter element sealing test device of the present invention adopts gas detection instead of the isopropyl alcohol immersion test commonly used for liquid filter elements, thereby avoiding the contamination of the filter element by isopropyl alcohol and the operation of post-processing, and is suitable for the detection of liquid filter elements and gas filter elements.

[0039] The present invention can utilize the temperature sensor and the flow sensor to monitor the flow rate in and out of the filter element and the change of the temperature difference, effectively detect the leakage point of the filter element, and improve the reliability of the filter element detection result.

[0040] The present invention can realize local testing of key areas by providing an air intake mechanism and an air outlet mechanism and separating the air intake mechanism and the air outlet mechanism, making the detection process safer, simpler and more efficient, and reducing operating costs.

[0041] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application.

[0043] FIG1 is a schematic structural diagram of a filter element sealing test device according to an embodiment of the present invention;

[0044] FIG2 is a schematic structural diagram of the filter element sealing test device in FIG1 with the filter element to be tested installed;

[0045] FIG3 is a cross-sectional view of the filter element sealing test device in FIG2 without the bracket installed;

[0046] FIG4 is a schematic structural diagram of the air intake mechanism in FIG1 ;

[0047] FIG5 is a schematic structural diagram of the air outlet mechanism in FIG1 ;

[0048] 6 is a schematic structural diagram of a filter element sealing test device according to an embodiment of the present invention (the air inlet mechanism and the air outlet mechanism are spaced apart);

[0049] FIG7 is a schematic structural diagram of the filter element sealing test device in FIG6 with the filter element to be tested installed;

[0050] FIG8 is a schematic structural diagram of the air intake mechanism in FIG6;

[0051] FIG9 is a schematic structural diagram of the air outlet mechanism in FIG6 ;

[0052] FIG10 is a schematic structural diagram of the air outlet mechanism and the adjacent side of the filter element to be tested in FIG6 ;

[0053] 11 is a flow chart of a filter element sealing test method according to an embodiment of the present invention;

[0054] FIG12 is a flow chart of step S2 of the filter element sealing test method in this embodiment.

[0055] Reference numerals:

[0056] 1-Intake mechanism;

[0057] 11-first mounting hole;

[0058] 12-heater;

[0059] 13-separator;

[0060] 14-septal chamber;

[0061] 15- first opening side;

[0062] 2-air outlet mechanism;

[0063] 21- second mounting hole;

[0064] 22-suction hole;

[0065] 23-Suction tube;

[0066] 24- spacer;

[0067] 25-interval space;

[0068] 26- second opening side;

[0069] 3- Bracket;

[0070] 31-first connecting rod;

[0071] 311-first horizontal bar;

[0072] 312-first connection end;

[0073] 32- second connecting rod;

[0074] 321-second horizontal bar;

[0075] 322-second connection end;

[0076] 33- ejector rod;

[0077] 34- telescopic rod;

[0078] 4- Airflow test channel;

[0079] 5-Testing parts;

[0080] 6-Filter element to be tested. DETAILED DESCRIPTION

[0081] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0082] Compared with the traditional method of testing the filter element by immersing it in isopropyl alcohol, this embodiment uses gas detection to avoid the contamination of the filter element by isopropyl alcohol and post-processing operations, and is also applicable to the detection of liquid filter elements and air filter elements.

[0083] Figure 1 is a structural schematic diagram of a filter element sealing test device in an embodiment of the present invention, Figure 2 is a structural schematic diagram of a filter element sealing test device in Figure 1 with a filter element 6 to be tested installed, Figure 3 is a cross-sectional view of the filter element sealing test device in Figure 2 without a bracket 3 installed, Figure 4 is a structural schematic diagram of the air intake mechanism 1 in Figure 1, and Figure 5 is a structural schematic diagram of the air outlet mechanism 2 in Figure 1.

[0084] The present embodiment provides a filter element sealing test device, as shown in Figures 1 and 2, comprising an air inlet mechanism 1, an air outlet mechanism 2 and a bracket 3. The air inlet mechanism 1 and the air outlet mechanism 2 are both mounted on the bracket 3. An airflow test channel 4 is formed between the air inlet mechanism 1 and the air outlet mechanism 2. The filter element 6 to be tested is inserted into the airflow test channel 4. The bracket 3 can drive the air inlet mechanism 1 and the air outlet mechanism 2 to move vertically up and down relative to the filter element 6 to be tested. The filter element sealing test device of the present embodiment also includes a detection member 5, which is respectively arranged on the side of the filter element 6 to be tested adjacent to the air inlet mechanism 1 and the side adjacent to the air outlet mechanism 2, i.e., the inner side and the outer side of the filter element 6 to be tested. When the bracket 3 drives the air inlet mechanism 1 and the air outlet mechanism 2 to move vertically up and down along the filter element 6 to be tested, the detection member 5 detects the sealing of the filter element 6 to be tested at different heights. 3 , the filter element 6 to be tested is a hollow cylinder, and its axial cross-section is annular. Thus, the corresponding air inlet mechanism 1 and air outlet mechanism 2 are both cylindrical structures. The detection member 5 disposed inside the filter element 6 to be tested is blocked and not marked.

[0085] Specifically, the bracket 3 includes a first connecting rod 31 connected to the air intake mechanism 1 and a second connecting rod 32 connected to the air outlet mechanism 2 .

[0086] In some embodiments, the first connecting rod 31 and the second connecting rod 32 can be U-shaped rods. The first connecting rod 31 has a first connecting end 312 at its bottom, through which the first connecting rod 31 is connected to the air intake mechanism 1. The second connecting rod 32 has a second connecting end 322 at its bottom, through which the second connecting rod 32 is connected to the air outlet mechanism 2. The first connecting rod 31 has a first horizontal rod 311 at its top, and the second connecting rod 32 has a second horizontal rod 321 at its top. The first horizontal rod 311 and the second horizontal rod 321 are connected by a top rod 33. The top rod 33 has at least one telescopic rod 34, which is used to move the first and second connecting rods 31 and 32 vertically. The top rod 33 connects the air intake mechanism 1 and the air outlet mechanism 2 through the first and second connecting rods 31 and 32, ensuring that the air intake mechanism 1 and the air outlet mechanism 2 are at the same height and preventing the first and second connecting rods 31 and 32 from shaking during the extension and retraction of the telescopic rod 34, which may cause the air intake mechanism 1 and the air outlet mechanism 2 to be misaligned.

[0087] As shown in FIG. 2 , the filter element 6 to be tested is cylindrical, and the first connecting rod 31 and the second connecting rod 32 share a push rod 33 , that is, the first horizontal rod 311 and the second horizontal rod 321 serve as the push rod 33 .

[0088] The telescopic rod 34 drives the first connecting rod 31 and the second connecting rod 32 to move vertically via the top rod 33, thereby causing the air inlet mechanism 1 and the air outlet mechanism 2 to simultaneously shift and move vertically along the filter element 6 to be tested. Furthermore, a drive mechanism is provided at the end of the telescopic rod 34 that is away from the top rod 33. The drive mechanism can be a drive motor or a sling, etc. The drive motor or sling is used to pull the first connecting rod 31 and the second connecting rod 32 to move vertically, so that the air inlet mechanism 1 and the air outlet mechanism 2 can move vertically along the filter element 6 to be tested and the sealing performance of the filter element 6 at different vertical positions can be tested.

[0089] As shown in Figure 4, the air intake mechanism 1 is cylindrical, matching the shape of the filter element 6 to be tested, and a first mounting hole 11 is opened on the top. The first connecting end 312 is inserted into the first mounting hole 11 to complete the fixed connection between the first connecting rod 31 and the air intake mechanism 1; a heater 12 and a separator 13 are provided in the air intake mechanism 1. When the air intake mechanism 1 is cylindrical, the heater 12 is set at the center of the air intake mechanism 1, and the hole at the bottom of the heater 12 is the air intake hole of the air intake mechanism 1 (not marked in the figure). The separator 13 extends outward with the heater 12 as the center, dividing the air intake mechanism 1 into multiple partition chambers 14; the side of the air intake mechanism 1 facing the filter element 6 to be tested is the first opening side 15 (also the outlet side of the air intake mechanism 1), that is, the side of the air intake mechanism 1 adjacent to the filter element 6 to be tested is an opening setting; in the air intake mechanism 1, the gas flows in from the air intake hole and flows out from the first opening side 15.

[0090] As shown in Figure 5, the air outlet mechanism 2 is in the form of a hollow ring, which matches the shape of the filter element 6 to be tested. A second mounting hole 21 is provided on the top, and the second connecting end 322 is inserted into the second mounting hole 21 to complete the fixed connection between the second connecting rod 32 and the air outlet mechanism 2; at least one suction hole 22 is provided on the outside of the air outlet mechanism 2 (away from the side of the filter element 6 to be tested), and a suction tube 23 is detachably installed on the suction hole 22; a partition plate 24 is provided in the air outlet mechanism 2, which divides the air outlet mechanism 2 into a plurality of partition spaces 25, and a suction hole 22 is provided on the outside of each partition space 25, and a suction tube 23 is detachably installed on each suction hole 22, and the partition spaces 25 correspond one-to-one to the partition chamber 14; the side of the air outlet mechanism 2 facing the filter element 6 to be tested is the second opening side 26, that is, the side of the air outlet mechanism 2 adjacent to the filter element 6 to be tested is an opening setting.

[0091] Flexible rubber seals are provided on the side of the air inlet mechanism 1 and the air outlet mechanism 2 adjacent to the filter element 6 to be tested, which are used to reduce the gas overflow of the air inlet mechanism 1 and prevent the air outlet mechanism 2 from extracting too much external air, thereby improving data reliability and preventing the air inlet mechanism 1 and the air outlet mechanism 2 from causing damage to the surface of the filter element 6 to be tested during movement.

[0092] The air outlet mechanism 2 is sleeved on the outside of the air inlet mechanism 1, and the outlet side of the air inlet mechanism 1 is arranged corresponding to the second opening side 26 of the air outlet mechanism 2, forming an airflow test channel 4 between the air inlet mechanism 1 and the air outlet mechanism 2. The filter element 6 to be tested is inserted into the airflow test channel 4, and the test piece 5 is respectively arranged on the inside and outside of the filter element 6 to be tested. During the actual testing process, the filter element 6 to be tested is in a stationary state. The first connecting rod 31, the second connecting rod 32 and the telescopic rod 34 drive the air inlet mechanism 1 and the air outlet mechanism 2 to move vertically along the filter element 6 to be tested. One end of the suction pipe 23 is connected to the suction pump, which draws air through the suction pipe 23, so that the air flows through the air inlet mechanism 1 to the air outlet mechanism 2, and then flows through the filter element 6 to be tested. The deviation of the detection value detected by the detection piece 5 is used to detect the leakage point. Once a leakage point appears on the filter element 6 to be tested, the detection values ​​of the two detection pieces 5 will change, thereby determining the location of the leakage point, and realizing the detection of different heights of the sealing of the filter element 6 to be tested.

[0093] The detection part 5 is a temperature sensor and / or a flow sensor. Two temperature sensors and / or two flow sensors are respectively arranged on the inner side and outer side of the filter element 6 to be tested. Furthermore, the detection part 5 can be two temperature sensors or two flow sensors, or two temperature sensors and two flow sensors can be arranged at the same time to form a redundant design, which is not limited here.

[0094] Figure 6 is a structural schematic diagram of the filter element sealing test device in an embodiment of the present invention, in which the air intake mechanism 1 and the air outlet mechanism 2 are arranged at intervals. Figure 7 is a structural schematic diagram of the filter element sealing test device in Figure 6 with the filter element 6 to be tested installed. Figure 8 is a structural schematic diagram of the air intake mechanism 1 in Figure 6. Figure 9 is a structural schematic diagram of the air outlet mechanism 2 in Figure 6. Figure 10 is a structural schematic diagram of the side of the air outlet mechanism 2 adjacent to the filter element 6 to be tested in Figure 6.

[0095] The filter element sealing test device provided in this embodiment can be designed accordingly according to the shape of the filter element 6 to be tested. As shown in Figures 6 and 7, when the filter element 6 to be tested is cubic, the air inlet mechanism 1 and the air outlet mechanism 2 are arranged at intervals and are both rectangular structures.

[0096] Specifically, as shown in Figure 6, the first connecting rod 31 and the second connecting rod 32 are arranged in parallel, and the first horizontal rod 311 at the top of the first connecting rod 31 and the second horizontal rod 321 at the top of the second connecting rod 32 are connected by a top rod 33, and a telescopic rod 34 is provided on the top rod 33; the first connecting end 312 at the bottom of the first connecting rod 31 is connected to the air intake mechanism 1, and the second connecting end 322 at the bottom of the second connecting rod 32 is connected to the air outlet mechanism 2; at least one telescopic rod 34 is provided on the top rod 33, and the first connecting rod 31 and the second connecting rod 32 are driven to move vertically by the extension and contraction of the telescopic rod 34.

[0097] As shown in FIG7 , the filter element 6 to be tested is provided with a detection member 5 , which is respectively provided on a side adjacent to the air inlet mechanism 1 and a side adjacent to the air outlet mechanism 2 .

[0098] As shown in Figure 8, the air intake mechanism 1 is rectangular, with a first mounting hole 11 on the top, and the first connecting end 312 is inserted into the first mounting hole 11 to complete the fixed connection between the first connecting rod 31 and the air intake mechanism 1; at least one partition plate 13 is provided in the air intake mechanism 1, and the partition plate 13 divides the air intake mechanism 1 into multiple partition chambers 14, each partition chamber 14 is provided with a heater 12, and the hole at the bottom of the heater 12 is the air intake hole of the air intake mechanism 1 (not marked in the figure); the side of the air intake mechanism 1 facing the filter element 6 to be tested is the first opening side 15 (also the outlet side of the air intake mechanism 1), that is, the side of the air intake mechanism 1 adjacent to the filter element 6 to be tested is an opening setting; in the air intake mechanism 1, the gas flows in from the air intake hole and flows out from the first opening side 15.

[0099] As shown in Figures 9 and 10, the air outlet mechanism 2 is rectangular, with a second mounting hole 21 on the top, and the second connecting end 322 is inserted into the second mounting hole 21 to complete the fixed connection between the second connecting rod 32 and the air outlet mechanism 2; at least one partition plate 24 is provided in the air outlet mechanism 2, and the partition plate 24 divides the air outlet mechanism 2 into a plurality of partition spaces 25, and each partition space 25 is provided with a suction hole 22 on the outside, and a suction pipe 23 can be detachably installed on each suction hole 22, and the partition space 25 corresponds one-to-one to the partition chamber 14; the side of the air outlet mechanism 2 facing the filter element 6 to be tested is the second opening side 26, that is, the side of the air outlet mechanism 2 adjacent to the filter element 6 to be tested is an opening setting.

[0100] The filter element 6 to be tested is cubical in shape. The air inlet mechanism 1 can be provided with multiple compartments 14 along its width, and the air outlet mechanism 2 can be provided with multiple compartments 25 along its width. This allows the airflow test channel 4 to cover the sides of the filter element 6 to be tested, thereby increasing the area of ​​the filter element 6 to be tested, thereby improving detection accuracy and reliability. The number of compartments 14 and compartments 25 can be two, three, or more, and is not limited herein.

[0101] FIG11 is a flow chart of a filter element sealing test method according to an embodiment of the present invention, and FIG12 is a flow chart of step S2 of the filter element sealing test method according to this embodiment.

[0102] As shown in FIG11 , the filter element sealing test method, using the filter element sealing test device described above, includes the following steps:

[0103] Step S1: Place the filter element 6 to be tested into the airflow test channel 4, and place the detection element 5 on both the side of the filter element 6 to be tested adjacent to the air inlet mechanism 1 and the side adjacent to the air outlet mechanism 2;

[0104] Step S2: Start the detection member 5, and drive the air inlet mechanism 1 and the air outlet mechanism 2 to move vertically up and down along the filter element 6 to be tested through the bracket 3, so as to test the sealing performance of the filter element 6 at different heights.

[0105] In step S1, an air intake mechanism 1, an air outlet mechanism 2, and a bracket 3 of appropriate sizes are selected according to the size of the filter element 6 to be tested, a heater 12 is set in the air intake mechanism 1, a suction pump is connected to the suction pipe 23 of the air outlet mechanism 2, the detection component 5 is a temperature sensor and / or a flow sensor, and the telescopic rod 34 of the bracket 3 is adjusted so that the air intake mechanism 1 and the air outlet mechanism 2 are at the same height and only close to the filter element 6 to be tested.

[0106] Without turning on the heater 12 and the detection part 5, a suction pump is used to extract air to the outside through the suction pipe 23 to complete the preliminary purge of all target height areas, so as to prevent fibers or other impurities on the surface of the filter element 6 to be tested from falling off and affecting the accuracy of the data, and at the same time achieve simple cleaning of the filter element 6 to be tested.

[0107] As shown in FIG12 , step S2 includes the following steps:

[0108] Step S21: Start the heater 12 and the detection element 5, use the suction pump to extract air to the outside through the suction pipe 23, adjust the suction pressure and record the values ​​of the temperature sensors and / or flow sensors on both sides of the filter element 6 to be tested, determine the leakage point and the corresponding suction pressure in the corresponding height area of ​​the filter element 6 to be tested based on the difference in the temperature sensor and / or flow sensor values, and turn off the suction pump;

[0109] Step S22: The first connecting rod 31 and the second connecting rod 32 are driven by the telescopic rod 34 to move the air inlet mechanism 1 and the air outlet mechanism 2 to the next height range of the filter element 6 to be tested;

[0110] Step S23: Repeat steps S21 and S22 to complete the test of all target height areas of the filter element 6 to be tested;

[0111] Step S24: Processing the temperature sensor and / or flow sensor data, determining the maximum leakage point position of the filter element 6 to be tested and its corresponding suction pressure, and judging whether the sealing performance of the filter element 6 to be tested is qualified.

[0112] This embodiment uses a filter element sealing test device to test the sealing performance of the filter element 6 to be tested, and adopts gas detection instead of the isopropyl alcohol immersion test commonly used for the liquid filter filter 6 to be tested, thereby avoiding the contamination of the filter element 6 to be tested by isopropyl alcohol and the post-processing operation, and is also applicable to the detection of the liquid filter filter 6 to be tested and the gas filter filter 6 to be tested.

[0113] The detection component 5 is a temperature sensor and / or a flow sensor. The temperature sensor and flow sensor can be used to monitor the flow rate and temperature difference changes of the filter element 6 to be tested, effectively detect the leakage point of the filter element 6 to be tested, and improve the reliability of the detection results of the filter element 6 to be tested.

[0114] By providing the air intake mechanism 1 and the air outlet mechanism 2 and separating the air intake mechanism 1 from the air outlet mechanism 2, local testing of key areas can be achieved, making the testing process safer, simpler and more efficient, and reducing operating costs.

[0115] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A filter element sealing test device, characterized in that: include: An air intake mechanism is arranged on one side of the filter element to be tested; An air outlet mechanism is arranged at the other side of the filter element to be tested, an air flow test channel is formed between the air inlet mechanism and the air outlet mechanism, and the filter element to be tested is placed in the air flow test channel; A bracket, connected to the air inlet mechanism and the air outlet mechanism, and used to drive the air inlet mechanism and the air outlet mechanism to move vertically along the filter element to be tested; The detection member is respectively arranged on a side of the filter element to be tested adjacent to the air inlet mechanism and a side adjacent to the air outlet mechanism, and cooperates with the bracket to detect the sealing performance of the filter element to be tested.

2. The filter element sealing test device according to claim 1, characterized in that: The support comprises: A first connecting rod connected to the air inlet mechanism and a second connecting rod connected to the air outlet mechanism, the first connecting rod and the second connecting rod are connected by a top rod, and a telescopic rod is provided on the top rod, and the telescopic rod is used to drive the first connecting rod and the second connecting rod to move vertically along the filter element to be tested.

3. The filter element sealing test device according to claim 2, characterized in that: The first connecting rod and the second connecting rod are both U-shaped rods, The first connecting end of the first connecting rod is inserted into the first mounting hole of the air intake mechanism. The second connecting end of the second connecting rod is inserted into the second mounting hole of the air outlet mechanism.

4. The filter element sealing test device according to claim 1, characterized in that: The filter element to be tested is a hollow cylindrical shape. The air outlet mechanism is sleeved on the outside of the air inlet mechanism, and the first opening side of the air inlet mechanism and the second opening side of the air outlet mechanism are both arranged toward the filter element to be tested. The filter element to be tested is inserted into the airflow testing channel.

5. The filter element sealing test device according to claim 1, characterized in that: The filter element to be tested is in the shape of a cube. The air inlet mechanism and the air outlet mechanism are arranged at intervals, the air inlet mechanism is arranged inside the air outlet mechanism, and the first opening side of the air inlet mechanism and the second opening side of the air outlet mechanism are both arranged toward the filter element to be tested. The filter element to be tested is inserted into the airflow testing channel.

6. The filter element sealing test device according to claim 1, characterized in that: At least one heater is provided in the air intake mechanism. The detection component is a temperature sensor and / or a flow sensor, and the temperature sensor and / or the flow sensor are arranged on the inner side and the outer side of the filter element to be tested.

7. The filter element sealing test device according to claim 6, characterized in that: At least one suction hole is arranged on the outer side of the air outlet mechanism, and a suction pipe is detachably mounted on the suction hole.

8. The filter element sealing test device according to claim 7, characterized in that: At least one partition is provided in the air intake mechanism, and the partition divides the air intake mechanism into a plurality of partition chambers, and each of the partition chambers is provided with the heater; At least one partition plate is provided in the air outlet mechanism, and the partition plate divides the air outlet mechanism into There are a plurality of partition spaces, each of which is connected to the suction pipe; The partition chambers correspond to the partition spaces one by one.

9. The filter element sealing test device according to claim 1, characterized in that: The air inlet mechanism and the air outlet mechanism are both provided with flexible rubber seals on one side adjacent to the filter element to be tested.

10. A filter element sealing test method, characterized in that: The filter element sealing test device according to any one of claims 1 to 9 comprises the following steps: Step S1: placing the filter element to be tested into the airflow test channel, and placing the detection element on both the side of the filter element to be tested adjacent to the air inlet mechanism and the side adjacent to the air outlet mechanism; Step S2: Start the detection component, and drive the air inlet mechanism and the air outlet mechanism to move vertically up and down along the filter element to be tested through the bracket, so as to detect the sealing performance of the filter element to be tested at different heights.

Images