Leakage detection scanning mechanism for air supply and exhaust high-efficiency filter

Abstract

The utility model relates to a leak detection scanning mechanism for an air supply and exhaust high-efficiency filter in the technical field of biosafety laboratory purification. The leak detection scanning mechanism comprises a mechanical transmission assembly, a detection assembly and a control center, the mechanical transmission assembly comprises an X-axis moving assembly, a first Y-axis moving assembly, a second Y-axis moving assembly and a fixing frame. The detection assembly comprises a detection probe and a detection interface; the detection probe is mounted on the second Y-axis moving assembly; the second Y-axis moving assembly is mounted on the X-axis moving assembly; the X-axis moving assembly is mounted on the first Y-axis moving assembly; the detection interface is used for connecting an external particle counter. According to the scheme, the scanning mechanism adopts full-automatic mechanical scanning and is provided with a leakage point positioning and marking function. The position and the size of a leakage point can be determined according to collected data, a control center is used for early warning a leakage event in advance, automatic detection work is standardized, and the scanning efficiency and the environment safety are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of biological safety laboratory purification technology, especially a kind of leak detection scanning mechanism for high efficiency filter of air supply and exhaust. BACKGROUND

[0002] The current market high efficiency filter scanning leak detection operation is handheld scanning or manual mechanical rocker push scanning form, and the defects of this mode are: 1, scanning probe is mostly slender rectangle, and the aspect ratio does not meet the standard ratio;2, scanning path and scanning mode do not meet the relevant standards;Handheld scanning or manual rocker push scanning cannot guarantee that probe moves uniformly and stably, and the detection result has large unstable factors;3, unless obvious visible damage, qualitative analysis of filter can be carried out according to collected data (pressure difference and particle quantity). In most cases, the specific situation of filter (leakage point position and leakage size) cannot be determined, so it is not suitable for quantitative analysis occasions;4. Filter cannot be repaired through scanning results.

[0003] Therefore, the market urgently needs a technical scheme to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to solve the above problems, the utility model discloses a kind of leak detection scanning mechanism for high efficiency filter of air supply and exhaust, and the scanning mechanism of this scheme adopts full-automatic mechanical scanning, and is equipped with leak point positioning mark function. Not only can the position and size of leakage point be determined according to collected data, but also the control hub can be used to early warn leakage event, standard automatic detection work, greatly improve scanning efficiency and environmental safety. The technical scheme of the utility model is implemented as follows:

[0005] A kind of leak detection scanning mechanism for high efficiency filter of air supply and exhaust, including mechanical transmission assembly, detection component and control hub;

[0006] The mechanical transmission assembly includes X-axis moving assembly, first Y-axis moving assembly, second Y-axis moving assembly and fixed frame;

[0007] The detection component includes detection probe and detection interface;

[0008] The detection probe is slidably installed on the second Y-axis moving assembly;

[0009] The second Y-axis moving assembly is slidably installed on the X-axis moving assembly;

[0010] The X-axis moving assembly is slidably installed on the first Y-axis moving assembly;

[0011] The first Y-axis moving assembly is fixed on the fixed frame;

[0012] The fixed frame is connected with the air supply and exhaust high-efficiency filter.

[0013] The control center is in communication connection with the detection probe, the X-axis moving assembly, the first Y-axis moving assembly and the second Y-axis moving assembly.

[0014] The detection interface is arranged above the box body of the air supply and exhaust high-efficiency filter.

[0015] The detection interface is used for connecting an external particle counter.

[0016] Preferably, a differential pressure gauge is further included.

[0017] The differential pressure gauge is installed outside the box body of the air supply and exhaust high-efficiency filter.

[0018] The differential pressure gauge is in communication connection with the control center.

[0019] Preferably, the control center includes a touch screen and control components.

[0020] The control components are integrated in the touch screen.

[0021] Preferably, the X-axis moving assembly includes an X-axis fixed frame, an X-axis motor, an X-axis transmission screw rod, an X-axis guide rail and an X-axis sliding block.

[0022] The X-axis motor is connected with the X-axis transmission screw rod, the X-axis sliding block is arranged on the X-axis guide rail, the X-axis guide rail is fixed on the X-axis fixed frame, and the X-axis fixed frame is fixed on the first Y-axis moving assembly.

[0023] Preferably, the first Y-axis moving assembly includes a first Y-axis motor, a first Y-axis transmission screw rod, a first Y-axis guide rail and a first Y-axis sliding block.

[0024] The first Y-axis motor is connected with the first Y-axis transmission screw rod, the first Y-axis sliding block is arranged on the first Y-axis guide rail, and the first Y-axis guide rail is fixed on the fixed frame.

[0025] Preferably, the second Y-axis moving assembly includes a second Y-axis fixed frame, a second Y-axis motor, a second Y-axis transmission screw rod, a second Y-axis guide rail and a second Y-axis sliding block.

[0026] The second Y-axis motor is connected with the second Y-axis transmission screw rod, the second Y-axis sliding block is arranged on the second Y-axis guide rail, the second Y-axis guide rail is fixed on the second Y-axis fixed frame, and the second Y-axis fixed frame is fixed on the X-axis sliding block.

[0027] Preferably, the detection probe includes a square detection port.

[0028] Preferably, the square detection port has a size of 50mmX50mm.

[0029] The utility model discloses the advantages are as follows:

[0030] 1, the fixed frame whole pasting sends the exhaust outlet box of high -efficient filter, stability is good and is favorable to improving the overall strength of the exhaust outlet, can resist 2500PA pressure 60min, no crack, no deformation.

[0031] 2, mechanical transmission assembly adopts the transmission mode of motor + screw rod, and the moving precision of this mode can be 0.01mm.

[0032] 3, scanning stroke direction has X -axis, first Y -axis and second Y -axis three strokes, wherein X -axis, first Y -axis are the stroke in the conventional filter air outlet plane range, and second Y -axis is Y -axis stroke that can be increased in the conventional plane range, mainly applies when filter frame connection place leakage scanning and multiple probe parallel scanning.

[0033] 4, detection probe adopts 50X50 square port, and the plane moves uniformly at 2cm from the surface of high -efficient filter.

[0034] 5, can set scanning path according to the structure type of filter, can carry out key coverage scanning to the common problem leakage point of different type filters.

[0035] 6, according to scanning data, carries out leakage point positioning, and the repairability of filter leakage point is evaluated through the data pre-input in control core.

[0036] 7, adopts particle scanning method, is suitable for almost all types of filters, whether partial test or comprehensive test is applicable, and the accuracy is higher. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only one embodiment of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0038] Wherein the same parts are denoted by the same reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0039] Figure 1 is a front view of an embodiment of the present application;

[0040] Figure 2 is a side view of an embodiment of the present application;

[0041] Figure 3 is a top view of an embodiment of the present application;

[0042] Figure 4 is a structural axial view of the mechanical moving assembly in the embodiment shown in Figure 1

[0043] Figure 5 is a structural plan view of the mechanical moving assembly in the embodiment shown in Figure 1

[0044] Figure 6 is a specific use state diagram of the embodiment shown in Figure 1

[0045] 2, X-axis moving assembly;

[0046] 2-1, X-axis fixed frame;

[0047] 2-2, X-axis motor;

[0048] 2-3, X-axis transmission screw;

[0049] 2-4, X-axis guide rail;

[0050] 2-5, X-axis slider;

[0051] 3, first Y-axis moving assembly;

[0052] 3-1, first Y-axis execution motor;

[0053] 3-2, first Y-axis slider;

[0054] 3-3, first Y-axis guide rail;

[0055] 3-4, first Y-axis transmission screw; 4, second Y-axis moving assembly;

[0056] 4-1, second Y-axis fixed frame;

[0057] 4-2, second Y-axis motor;​​​

[0058] 4-3, second Y-axis drive screw;

[0059] 4-4, second Y-axis guide rail;

[0060] 4-5, second Y-axis slider;

[0061] 5, fixed frame;

[0062] 6, detection probe;

[0063] 7, detection interface;

[0064] 8, differential pressure gauge;

[0065] 9, box body;

[0066] 10, inlet air cover plate;

[0067] 11, high-efficiency filter;

[0068] 12, filter front side pressure inlet;

[0069] 13, filter rear side pressure inlet;

[0070] 14, safety sealing valve. DETAILED DESCRIPTION

[0071] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0072] Unless otherwise defined, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those skilled in the art to which the present application belongs; the terms used in the specific embodiments are only for the purpose of describing the specific embodiments, and are not intended to limit the present application; the terms "include" and "have" in the specification and claims of the present application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0073] In the description of the specific embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0074] The phrase "embodiment" in the present utility model means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present utility model. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present utility model can be combined with other embodiments.

[0075] In the description of the embodiments of the present utility model, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " in the present utility model generally represents that the front and rear associated objects are in an "or" relationship.

[0076] Throughout the present utility model, numerical values represent approximate measurements or limits of a range to encompass minor deviations from the given values as well as embodiments having about the mentioned values and embodiments having the mentioned exact values. Except for the working examples provided at the end of the specific embodiments, all numerical values of parameters (e.g., amounts or conditions) in the specification (including the appended claims) should be understood in all cases to be modified by the term "about", regardless of whether "about" actually appears before the numerical value. "About" indicates that some minor inaccuracy exists in the stated numerical value (is close to the exact value of the stated value to some extent; is approximately or reasonably close to the stated value; is almost). If the inaccuracy provided by "about" is not otherwise understood in the art in this ordinary meaning, "about" as used in the present utility model at least indicates the variation that can be produced by ordinary methods of measuring and using such parameters. For example, "about" can include a variation of less than or equal to 5%, optionally less than or equal to 4%, optionally less than or equal to 3%, optionally less than or equal to 2%, optionally less than or equal to 1%, optionally less than or equal to 0.5%, and in certain aspects, optionally less than or equal to 0.1%.

[0077] In addition, the disclosure of a range includes all values and further partitioned range disclosures within the entire range, including the endpoints and subranges given for these ranges.

[0078] The embodiments of the present utility model will be described in more detail below by way of examples. It should be noted that the embodiments of the present utility model are not limited to only these examples.

[0079] Embodiments

[0080] In a specific embodiment, as Figures 1-3As shown, a leak detection scanning mechanism for a high-efficiency filter for supply and exhaust air includes a mechanical transmission assembly, a detection assembly, and a control center 1; the mechanical transmission assembly includes an X-axis moving assembly 2, a first Y-axis moving assembly 3, a second Y-axis moving assembly 4, and a fixed frame 5.

[0081] The detection components include a detection probe 6 and a detection interface 7.

[0082] The detection probe 6 is slidably mounted on the second Y-axis moving assembly 4; the second Y-axis moving assembly 4 is slidably mounted on the X-axis moving assembly 2; the X-axis moving assembly 2 is slidably mounted on the first Y-axis moving assembly; the first Y-axis moving assembly is fixed on the fixed frame 5.

[0083] This embodiment is used for scanning and leak detection of supply and exhaust air high-efficiency filters.

[0084] The supply and exhaust air high-efficiency filter includes a housing 9, a high-efficiency filter 11, and an air inlet cover 10; the housing 9 is provided with a front pressure inlet 12 and a rear pressure inlet 13 of the filter; the fixing frame 5 is attached to the high-efficiency filter 11.

[0085] The control center 1 is communicatively connected to the detection probe 6, the X-axis movement component 2, the first Y-axis movement component 3, and the second Y-axis movement component 4; the detection interface 7 is located above the housing 9; the detection interface 7 is used to connect to an external particle counter.

[0086] This embodiment includes a differential pressure gauge 8, which is installed on the outside of the housing 9 and is communicatively connected to the control center 1. The differential pressure gauge 8 is connected to the pressure inlet 12 on the front side of the filter and the pressure inlet 13 on the rear side of the filter.

[0087] In this embodiment, the control center 1 includes a touch screen and control components; the control components are integrated into the touch screen.

[0088] like Figures 5-6 As shown, the X-axis moving assembly 2 includes an X-axis fixed frame 2-1, an X-axis actuator motor 2-2, an X-axis transmission screw 2-3, an X-axis guide rail 2-4, and an X-axis slider 2-5; the X-axis actuator motor 2-2 is connected to the X-axis transmission screw 2-3, the X-axis slider 2-5 is mounted on the X-axis guide rail 2-4, the X-axis guide rail 2-4 is fixed to the X-axis fixed frame 2-1, and the X-axis fixed frame 2-1 is fixed to the first Y-axis slider 3-2.

[0089] The first Y-axis moving assembly 3 includes a first Y-axis actuator motor 3-1, a first Y-axis transmission screw 3-4, a first Y-axis guide rail 3-3, and a first Y-axis slider 3-2; the first Y-axis actuator motor 3-1 is connected to the first Y-axis transmission screw 3-4, the first Y-axis slider 3-2 is disposed on the first Y-axis guide rail 3-3, and the first Y-axis guide rail 3-3 is fixed on the fixed frame 5.

[0090] The second Y-axis moving assembly 4 comprises a second Y-axis fixed frame 4-1, a second Y-axis execution motor 4-2, a second Y-axis transmission screw 4-3, a second Y-axis guide rail 4-4 and a second Y-axis sliding block 4-5. The second Y-axis execution motor 4-2 is connected to the second Y-axis transmission screw 4-3. The second Y-axis sliding block 4-5 is arranged on the second Y-axis guide rail 4-4. The second Y-axis guide rail 4-4 is fixed to the second Y-axis fixed frame 4-1. The second Y-axis fixed frame 4-1 is fixed to the X-axis sliding block 2-5.

[0091] In the embodiment, the detection probe 6 comprises a square detection port with a size of 50mmX50mm.

[0092] In the embodiment, the control center 1 is used to collect and display the collected data, locate the leakage point according to the scanning result, and give a recommended repair or replacement scheme. According to the historical scanning data, possible leakage points can be timely warned and found.

[0093] The detection probe 6 scans the high-efficiency filter 11 according to the route set by the control center 1.

[0094] The differential pressure gauge 6 is used to detect the pressure difference between the inlet and outlet of the high-efficiency filter 11.

[0095] The specific use state of the embodiment is shown in Figure 6 The working process is as follows:

[0096] According to the detection requirements, the touch screen on the control center 1 is used to set a regular periodic detection task. The control center 1 issues an instruction. The mechanical transmission assembly controls the detection probe 6 to scan according to the scanning path set by the program. The scanning data is transmitted to the control center 1 by the particle counter. The control center 1 analyzes the data, generates a scanning result and a recommended scheme. When the scanning result shows a leakage point, the safety sealing valve 14 is closed and an alarm is issued to locate the leakage point. The on-site personnel can process it in combination with manual detection and system recommended scheme. When the high-efficiency filter 11 is repaired or replaced and installed, the control center 1 issues a task of full scanning and local coverage scanning of the leakage locating point. If the scanning result is normal, the alarm is removed, the safety sealing valve 14 is opened and the relevant records are kept. The differential pressure gauge 8 detects the pressure difference between the inlet and outlet of the high-efficiency filter 11 in real time. If the pressure difference is abnormal, the control center 1 issues an alarm signal. The initial pressure difference of the high-efficiency filter 11 should be less than 250PA. When the pressure difference is greater than twice the set initial pressure difference, the filter should be replaced in time. When the pressure difference is less than the set initial pressure difference, it may be due to filter leakage, so the leakage point should be scanned and repaired in time. In the case of unrepairable, the filter should be replaced in time.

[0097] It should be pointed out that the above only the preferred embodiments of the present application, and not to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included within the scope of the present application.

Claims

1. A leak detection scanning mechanism for a high efficiency particulate air filter, comprising: The mechanical transmission assembly, the detection assembly and the control center are included. The mechanical transmission assembly includes an X-axis moving assembly, a first Y-axis moving assembly, a second Y-axis moving assembly and a fixed frame. The detection assembly includes a detection probe and a detection interface. The detection probe is slidably mounted on the second Y-axis moving assembly. The second Y-axis moving assembly is slidably mounted on the X-axis moving assembly. The X-axis moving assembly is slidably mounted on the first Y-axis moving assembly. The first Y-axis moving assembly is fixed on the fixed frame. The fixed frame is connected with the air supply and exhaust high-efficiency filter. The control center is in communication connection with the detection probe, the X-axis moving assembly, the first Y-axis moving assembly and the second Y-axis moving assembly. The detection interface is arranged above the box body of the air supply and exhaust high-efficiency filter. The detection interface is used for connecting an external particle counter.

2. The leak scan mechanism for a supply and exhaust high efficiency particulate air filter of claim 1, wherein, A differential pressure gauge is further included. The differential pressure gauge is mounted outside the box body of the air supply and exhaust high-efficiency filter. The differential pressure gauge is in communication connection with the control center.

3. The leak scan mechanism for a high efficiency particulate air filter according to claim 1, wherein, The control center includes a touch screen and control components. The control components are integrated in the touch screen.

4. The leak scan mechanism for a high efficiency particulate air filter according to claim 1, wherein, The X-axis moving assembly includes an X-axis fixed frame, an X-axis motor, an X-axis transmission screw rod, an X-axis guide rail and an X-axis sliding block. The X-axis motor is connected with the X-axis transmission screw rod, the X-axis sliding block is arranged on the X-axis guide rail, the X-axis guide rail is fixed on the X-axis fixed frame, and the X-axis fixed frame is fixed on the first Y-axis moving assembly.

5. The leak scan mechanism for a supply and exhaust high efficiency particulate air filter of claim 4, wherein, The first Y-axis moving assembly includes a first Y-axis motor, a first Y-axis transmission screw rod, a first Y-axis guide rail and a first Y-axis sliding block. The first Y-axis motor is connected with the first Y-axis transmission screw rod, the first Y-axis sliding block is arranged on the first Y-axis guide rail, and the first Y-axis guide rail is fixed on the fixed frame.

6. The leak scan mechanism for a supply and exhaust high efficiency particulate air filter of claim 5, wherein, The second Y-axis moving assembly includes a second Y-axis fixed frame, a second Y-axis motor, a second Y-axis transmission screw rod, a second Y-axis guide rail and a second Y-axis sliding block. The second Y-axis motor is connected with the second Y-axis transmission screw rod, the second Y-axis sliding block is arranged on the second Y-axis guide rail, the second Y-axis guide rail is fixed on the second Y-axis fixed frame, and the second Y-axis fixed frame is fixed on the X-axis sliding block.

7. The leak scan mechanism for a high efficiency particulate air filter according to claim 1, wherein, The detection probe includes a square detection port.

8. The leak scan mechanism for a supply and exhaust high efficiency particulate air filter of claim 7, wherein, The size of the square detection port is 50mmX50mm.

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