A scanning leak detection system for purification device

Abstract

The present invention discloses a scanning leak detection system for a purification device, and relates to the field of gas purification. The system includes a rack, a transmission component installed on the back of the rack, a scanning sampling component connected to the transmission component, and a scanning display device connected to the scanning sampling component through a test tube; the scanning sampling component is formed by two identical triangular plates arranged in parallel to seal both side ends and then jointly enclose a cavity structure with a triangular cavity, the triangular plate is obliquely intersected with the plane where the rack outlet is located, and a vertical partition arranged in a parallelogram is arranged in the triangular cavity, and the side surface of the open end of the triangular cavity is used as a sampling component collection port, and the sampling component collection port is parallel to the plane where the rack outlet is located, and a sampling component outlet is opened at the intersection of the two closed end sides of the triangular cavity. The present invention can uniformly, continuously and comprehensively collect and sample the gas purified by the filter device, greatly improve the sampling accuracy, accurately and real-time monitor the environmental quality, and has strong versatility and a wide range of applications.

Description

Technical Field

[0001] The invention relates to the technical field of biosafety exhaust purification, and is an online scanning leak detection system used in conjunction with a biosafety exhaust purification device, and is mainly used to test the filtering efficiency of the biosafety exhaust purification device for aerosols and determine the location of filter leaks. Background Art

[0002] Since the pharmaceutical industry and biological virus laboratories have special environmental requirements, it is necessary to install biosafety purification devices to protect the surrounding environment. It is usually necessary to install a purification device scanning sampling system at the rear end of the purification device for scanning and sampling the purified gas, so as to monitor the environmental quality in real time. Some existing patents use multiple trapezoidal sampling plates connected end to end, and a trumpet-shaped sampling cavity is opened in each sampling plate. There are problems of discontinuity and unevenness in sampling and collection, which leads to certain errors in the test results. Traditional scanning sampling systems also use chain drives for scanning sampling, but the use of chain drives for scanning sampling has the defects of complex structure, large space requirements and high cost. Summary of the invention

[0003] The purpose of the present invention is to provide a purification device scanning leak detection system to address the deficiencies in the above-mentioned prior art. The present invention improves the structure of the scanning sampling component, and can uniformly, continuously and comprehensively collect and sample the gas purified by the filter device, greatly improving the sampling accuracy - that is, ensuring the accuracy of the air flow sample entering the test tube, thus ensuring the accuracy of the subsequent scanning display device measuring and displaying data, and thus accurately monitoring the environmental quality in real time. In addition, the versatility and scope of application of the present invention are expanded through the designed series of optional racks.

[0004] The purpose of the present invention can be achieved by the following technical measures:

[0005] A purification device scanning leak detection system of the present invention includes a rack with a rectangular frame structure (the rack is the installation base of the present invention, and is used as a connecting component between the present invention and the filter outlet. The present invention can be matched with a plurality of racks 1 with different outer edge sizes and used in conjunction with different purification device specifications for selection: by simply changing the width of the crossbeam and the vertical beam used for the exchange and assembly rack, the rack with the outer edge size and the corresponding purification device specification can be flexibly adjusted, thereby expanding the application scope of the present invention; the rack outlet widths of the racks available for selection are the same, that is, the range of the sampling collection port for scanning and sampling remains unchanged, so that the scanning sampling part, the transmission component, the scanning display device, and the test tube can all be used as universal parts, greatly improving the present invention. The scanning sampling part is connected to the transmission component and slides to scan the outlet of the rack (the gas at the outlet of the rack is continuously collected and sampled during the sliding process), and the scanning display device of the scanning sampling part is connected to the test tube (it can accurately and intuitively display the data information of the impurity particles contained in the air flow sample in the test tube, and then monitor the environmental quality in real time through the data); the scanning sampling part is composed of two identical triangular plates arranged in parallel to seal the two sides to form a cavity structure with a triangular cavity, and the triangular plate is obliquely intersected with the plane where the outlet of the rack is located (reducing the gas flow rate in the triangular cavity, further ensuring the quality of the environment). The triangular cavity is provided with vertical partitions arranged in a parallelogram shape (the airflow samples collected by the sampling piece collection port enter the triangular cavity, and are first diverted and then converged by the vertical partitions arranged in a parallelogram shape, so that the airflow samples can flow out of the sampling piece outlet evenly and stably and then enter the test tube, thereby improving the sampling accuracy of the sampling piece outlet - that is, ensuring the accuracy of the airflow samples entering the test tube, thus ensuring the accuracy of the measurement data and display data of the subsequent scanning display device, and thus accurately monitoring the environmental quality in real time). The open end side of the angular clamping cavity serves as a sampling piece collecting port, which is parallel to the plane where the rack outlet is located, and the height of the sampling piece collecting port matches the width of the rack outlet (the sampling piece collecting port is an open end side and is parallel to the plane where the rack outlet is located. During the sliding process, the gas at the rack outlet can be evenly, continuously and comprehensively collected, thereby improving the sampling accuracy of the sampling piece collecting port). A sampling piece outlet is opened at the intersection of the two closed end sides of the triangular clamping cavity, and a connecting plate is arranged on the outer surface of the triangle plate and at the edge of the sampling piece outlet (it is matched and connected with the mounting plate in the transmission assembly, and the scanning sampling piece is fixed to the screw block, so that the scanning sampling piece can be translated relative to the screw together with the screw block).

[0006] The transmission assembly described in the present invention includes a transmission bracket composed of a U-shaped groove plate and vertical plates I and II located at both ends (the transmission bracket is the installation base of the transmission assembly, and the vertical plates I and II are fixed on two vertical beams of the rack), a screw arranged in the groove cavity of the U-shaped groove plate, a servo motor connected to the input end of the screw, a screw block sleeved on the screw and combined in a threaded manner, a mounting plate fixed on the top surface of the screw block and connected to the scanning sampling part by bolts (the mounting plate can be flexibly designed according to the shape and installation angle of the scanning sampling part, and is matched and connected with the connecting plate in the scanning sampling part during installation), a baffle arranged at the end of the transmission bracket and a travel switch installed on the baffle (the servo motor drives the screw to rotate, and the rotation of the screw drives the screw block to slide horizontally relative to the screw. While the screw block slides, it also drives the mounting plate and the scanning sampling part to slide horizontally, thereby scanning and sampling the gas at the rack outlet. The travel switch can prevent collision).

[0007] The height of the vertical partitions in the present invention matches the height of the triangular cavity (in addition to the function of diverting gas, the vertical partitions also function as supporting ribs - supported between the inner surfaces of the two triangular plates).

[0008] The length of the rack outlet of the present invention is not greater than the length of the purification device outlet, and the width of the rack outlet is not greater than the width of the purification device outlet (ensuring that the width of the rack outlet is less than or equal to the width of the purification device outlet, that is, ensuring that the scanning sampling amplitude of the sampling piece collection port is less than or equal to the width of the purification device outlet, which is conducive to collecting uniform airflow samples; at the same time, the present invention can also make the rack outlet widths of multiple sets of optional racks the same - that is, the range of scanning sampling of the sampling piece collection port remains unchanged, so that the scanning sampling piece, the transmission component, the scanning display device, and the test tube can all be used as universal parts, greatly improving The versatility of the present invention is improved); the outer edge length of the rack is not less than the length of the outlet of the purification device, and the outer edge width of the rack is not less than the width of the outlet of the purification device (ensuring that the horizontal beams and vertical beams in the rack are connected to the shell at the outlet end of the purification device; the present invention can flexibly produce a rack that is easy to connect to the shell at the outlet end of the purification device without changing the width of the rack outlet according to the change in the size of the shell at the outlet end of the purification device - that is, only by changing the width of the horizontal beams and vertical beams used for exchanging and assembling the racks, the outer edge size can be flexibly adjusted to match the specifications of the corresponding purification device, thereby expanding the scope of application of the present invention).

[0009] The inlet end of the test tube in the present invention is connected to the outlet of the sampling piece, and the outlet end of the test tube is connected to the scanning display device (the air flow sample collected at the outlet of the sampling piece is transmitted to the scanning display device through the test tube for measurement and data display).

[0010] The rack described in the present invention is a rectangular frame structure composed of horizontal beams and vertical beams (the present invention can be designed with a plurality of racks with different outer edge sizes and used in conjunction with different purification device specifications for selection: only by changing the width of the horizontal beams and vertical beams used for the exchange and assembly of the racks, the outer edge sizes of the racks used in conjunction with the corresponding purification device specifications can be flexibly adjusted, thereby expanding the scope of application of the present invention; the rack outlet widths of the optional racks are the same - that is, the range of the sampling collection port for scanning and sampling remains unchanged, so that the scanning sampling part, transmission assembly, scanning display device, and test tube can all be used as universal parts, greatly improving the versatility of the present invention).

[0011] The scanning display device described in the present invention is an optical scanner (which can accurately and intuitively display data information of impurity particles contained in the air flow sample in the test tube, and then monitor the environmental quality in real time through the data).

[0012] The scanning display device described in the present invention is a particle counter (which can accurately and intuitively display data information of impurity particles contained in the air flow sample in the test tube, and then monitor the environmental quality in real time through the data).

[0013] The design principle of the present invention is as follows:

[0014] The present invention improves the structure of the scanning sampling part, can uniformly, continuously and comprehensively collect and sample the gas purified by the filter device, greatly improves the sampling accuracy - that is, ensures the accuracy of the air flow sample entering the test tube, thus ensuring the accuracy of the subsequent scanning display device measuring and displaying data, and thus accurately monitoring the environmental quality in real time. In addition, the versatility and application scope of the present invention are expanded through the designed series of optional racks.

[0015] More specifically, the present invention designs a scanning sampling piece with a triangular cavity, and uses an open end side as a sampling piece collecting port, so that the scanning sampling piece can slide and scan along the rack outlet under the drive of the transmission component, and collect the gas purified by the filter device evenly, continuously and comprehensively during the sliding process, thereby improving the sampling accuracy of the sampling piece collecting port; the present invention also provides vertical partitions arranged in a parallelogram shape in the triangular cavity, and the airflow samples collected by the sampling piece collecting port enter the triangular cavity, and are first diverted and then converged by the vertical partitions arranged in a parallelogram shape, so that the airflow samples can flow out of the sampling piece outlet evenly and stably and then enter the test tube, thereby improving the sampling accuracy of the sampling piece outlet - that is, ensuring the accuracy of the airflow sample entering the test tube, thereby ensuring the accuracy of the measurement data and display data of the subsequent scanning display device, thereby accurately monitoring the environmental quality in real time. In addition, the present invention designs a plurality of rectangular frame structure racks of different specifications for optional connection between the scanning sampling component and the filter, and the rack outlet widths of the optional racks are the same, that is, the range of the sampling component collection port for scanning sampling remains unchanged, so that the scanning sampling component, the transmission component, the scanning display device, and the test tube can all be used as universal parts, greatly improving the versatility of the present invention; at the same time, only the width of the horizontal beams and the vertical beams used for assembling the racks needs to be replaced, so that the racks with the outer edge dimensions corresponding to the specifications of the corresponding purification device can be flexibly adjusted, thereby expanding the scope of application of the present invention.

[0016] The beneficial technical effects of the present invention are as follows:

[0017] The present invention improves the structure of the scanning sampling part, can uniformly, continuously and comprehensively collect and sample the gas purified by the filter device, greatly improves the sampling accuracy - that is, ensures the accuracy of the air flow sample entering the test tube, thus ensuring the accuracy of the subsequent scanning display device measuring and displaying data, and thus accurately monitoring the environmental quality in real time. In addition, the versatility and application scope of the present invention are expanded through the designed series of optional racks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention viewed from the front.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the present invention viewed from the back.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the rack in the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the scanning sampling component in the present invention.

[0022] Figure 5It is a schematic diagram of the inner cavity structure of the scanning sampling component in the present invention.

[0023] Figure 6 is a front cross-sectional view of the drive assembly in the present invention (i.e. Figure 7 AA section view in Figure 1).

[0024] Figure 7 yes Figure 6 Top view of the .

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the mounting plate in the drive assembly.

[0026] Explanation of the serial numbers in the figure: 1. Rack, 1-1. Rack outlet, 1-2. Crossbeam, 1-3. Vertical beam; 2. Scanning sampling piece, 2-1. Triangular plate, 2-2. Triangular clamping cavity, 2-2-1. Sampling piece collecting port, 2-2-2. Sampling piece outlet, 2-2-3. Vertical partition, 2-2-4. Connecting plate; 3. Transmission assembly, 3-1. Transmission bracket, 3-1-1. U-shaped groove plate, 3-1-2. Vertical plate I, 3-1-3. Vertical plate II, 3-2. Servo motor, 3-3. Screw, 3-4. Screw block, 3-5. Mounting plate, 3-6. Baffle, 3-7. Travel switch; 4. Scanning display device, 5. Test tube. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings:

[0028] like Figures 1 to 8As shown, a purification device scanning leak detection system of the present invention comprises a rack 1 of rectangular frame structure (the rack 1 is the installation base of the present invention, and is a connecting component between the present invention and the filter outlet. The present invention can be matched with a plurality of racks 1 with different outer edge sizes and used in conjunction with different purification device specifications for selection: only by changing the width of the crossbeam 1-2 and the vertical beam 1-3 used for the exchange and assembly of the rack 1, the rack 1 with the outer edge size and the corresponding purification device specification can be flexibly adjusted, thereby expanding the application scope of the present invention; the rack outlet 1-1 of the optional racks has the same format, that is, the range of the sampling collection port 2-2-1 for scanning and sampling remains unchanged, In this way, the scanning sampling member 2, the transmission assembly 3, the scanning display device 4, and the test tube 5 can all be used as universal parts, which greatly improves the universality of the present invention), the transmission assembly 3 installed on the back of the rack 1 (in order not to affect the gas sampling of the sampling member collection port 2-2-1), the scanning sampling member 2 connected to the transmission assembly and performing a sliding scanning on the rack outlet 1-1 (the gas at the rack outlet 1-1 is continuously collected and sampled during the sliding process), and the scanning display device 4 connected to the scanning sampling member through the test tube 5 (can accurately and intuitively display the data information of the impurity particles contained in the airflow sample in the test tube 5, and then monitor the environmental quality in real time through the data);The scanning sampling member 2 is formed by sealing the two sides of two identical triangular plates 2-1 arranged in parallel to form a cavity structure with a triangular cavity 2-2. The triangular plates 2-1 are obliquely intersected with the plane where the rack outlet is located (reducing the gas flow rate in the triangular cavity 2-2, further ensuring that the gas flow sample flows out of the sampling member outlet 2-2-2 evenly and stably), and the height of the sampling member collection port 2-2-1 matches the width of the rack outlet 1-1 (facilitating uniform, continuous and comprehensive collection of the gas at the rack outlet 1-1). The triangular cavity 2-2 is provided with vertical partitions 2-2-3 arranged in a parallelogram shape (the airflow sample collected by the sampling piece collection port 2-2-1 enters the triangular cavity 2-2, and is first divided and then converged by the vertical partitions 2-2-3 arranged in a parallelogram shape, so that the airflow sample can flow out of the sampling piece outlet 2-2-2 evenly and stably and then enter the test tube 5, thereby improving the sampling accuracy of the sampling piece outlet, that is, ensuring the accuracy of the airflow sample entering the test tube 5, thus ensuring the subsequent scanning and display The display device 4 measures and displays the accuracy of the data, thereby accurately monitoring the environmental quality in real time). The open end side of the triangular clamp cavity 2-2 serves as the sampling piece collecting port 2-2-1, and the sampling piece collecting port 2-2-1 is parallel to the plane where the rack outlet 1-1 is located, and the height of the sampling piece collecting port 2-2-1 matches the width of the rack outlet 1-1 (the sampling piece collecting port 2-2-1 is an open end side, and is parallel to the plane where the rack outlet 1-1 is located, and can be on the rack outlet 1-1 during the sliding process. The gas is collected uniformly, continuously and comprehensively, which improves the sampling accuracy of the sampling part collection port). A sampling part outlet 2-2-2 is provided at the intersection of the two closed ends of the triangular clamping cavity 2-2. A connecting plate 2-2-4 is provided on the outer surface of the triangular plate 2-1 and at the edge of the sampling part outlet 2-2-2 (matched and connected with the mounting plate 3-5 in the transmission assembly 3, fixing the scanning sampling part 2 to the screw block 3-4, so that the scanning sampling part 2 moves relative to the screw rod 3-3 together with the screw block 3-4). ;

[0029] The transmission assembly 3 of the present invention comprises a transmission bracket 3-1 composed of a U-shaped groove plate 3-1-1 and vertical plates I 3-1-2 and II 3-1-3 located at both ends (the transmission bracket 3-1 is the installation base of the transmission assembly 3, and the vertical plates I 3-1-2 and II 3-1-3 are fixed on the two vertical beams 1-3 of the rack 1), a screw rod 3-3 arranged in the groove cavity of the U-shaped groove plate, a servo motor 3-2 connected to the input end of the screw rod, a screw block 3-4 sleeved on the screw rod and combined in a threaded manner, and a mounting plate 3-5 fixed on the top surface of the screw block and connected to the scanning sample part 2 by bolts ( The mounting plate 3-5 can be flexibly designed according to the shape and installation angle of the scanning sampling part 2, and matched and connected with the connecting plate 2-2-4 in the scanning sampling part 2 during installation), the baffle 3-6 arranged at the end of the transmission bracket and the travel switch 3-7 installed on the baffle (the servo motor 3-2 drives the screw 3-3 to rotate, and the rotation of the screw 3-3 drives the screw block 3-4 to slide horizontally relative to the screw, and the sliding of the screw block 3-4 drives the mounting plate 3-5 and the scanning sampling part 2 to slide horizontally, thereby scanning and sampling the gas at the rack outlet 1-1. The travel switch 3-7 can prevent collision).

[0030] The height of the vertical partition 2-3-3 in the present invention matches the height of the triangular cavity 2-2 (in addition to the function of diverting gas, the vertical partition 2-2-3 also serves as a supporting rib - supported between the inner surfaces of the two triangular plates 2-1).

[0031] The length of the rack outlet 1-1 described in the present invention is not greater than the length of the outlet of the purification device, and the width of the rack outlet 1-1 is not greater than the width of the outlet of the purification device (ensuring that the format of the rack outlet 1-1 is less than or equal to the format of the outlet of the purification device, that is, ensuring that the scanning sampling amplitude of the sampling piece collecting port 2-2-1 is less than or equal to the format of the outlet of the purification device, which is conducive to collecting uniform airflow samples; at the same time, the present invention can also make the format of the rack outlet 1-1 of multiple sets of optional racks the same - that is, the range of scanning sampling of the sampling piece collecting port 2-2-1 remains unchanged, so that the scanning sampling piece 2, the transmission component 3, the scanning display device 4, and the test tube 5 can all be used as universal parts, which greatly The versatility of the present invention is improved); the outer edge length of the rack 1 is not less than the length of the purification device outlet, and the outer edge width of the rack 1 is not less than the width of the purification device outlet (ensuring that the cross beams 1-2 and vertical beams 1-3 in the rack 1 are connected to the shell at the outlet of the purification device; the present invention can flexibly produce a rack 1 that is easy to connect to the shell at the outlet of the purification device without changing the width of the rack outlet 1-1 according to the change in the size of the shell at the outlet of the purification device - that is, only the width of the cross beams 1-2 and vertical beams 1-3 used for replacing and assembling the rack 1 needs to be changed, so that the outer edge size of the rack 1 can be flexibly adjusted to match the specifications of the corresponding purification device, thereby expanding the scope of application of the present invention).

[0032] The inlet end of the test tube 5 in the present invention is connected to the sampling piece outlet 2-2-2, and the outlet end of the test tube 5 is connected to the scanning display device 4 (the air flow sample collected at the sampling piece outlet 2-2-2 is transmitted to the scanning display device 4 through the test tube 5 for measurement and data display).

[0033] The rack 1 described in the present invention is a rectangular frame structure composed of horizontal beams 1-2 and vertical beams 1-3 (the present invention can be designed with a plurality of racks 1 with different outer edge sizes and used in conjunction with different purification device specifications for selection: only by changing the widths of the horizontal beams 1-2 and vertical beams 1-3 used in the exchange group rack 1, the rack 1 with the outer edge size and the corresponding purification device specifications can be flexibly adjusted, thereby expanding the scope of application of the present invention; the rack outlets 1-1 of the optional racks have the same format - that is, the range of the sampling piece collection port 2-2-1 for scanning and sampling remains unchanged, so that the scanning sampling piece 2, the transmission assembly 3, the scanning display device 4, and the test tube 5 can all be used as universal parts, greatly improving the versatility of the present invention).

[0034] The scanning display device 4 in the present invention is an optical scanner (which can accurately and intuitively display data information of impurity particles contained in the airflow sample in the test tube 5, and then monitor the environmental quality in real time through the data).

[0035] The scanning display device 4 in the present invention is a particle counter (which can accurately and intuitively display data information of impurity particles contained in the airflow sample in the test tube 5, and then monitor the environmental quality in real time through the data).

[0036] The specific use of the present invention is as follows:

[0037] First, according to the above structural description, the scanning sampling part 2 is installed on the mounting plate 3-5 of the transmission component 3, and the inlet end of the test tube 5 is connected with the sampling part outlet 2-2-2, and the outlet end of the test tube 5 is connected with the scanning display device 4; then, according to the specifications of the outlet end of the purification device, a rack 1 with matching outer edge dimensions is selected; then, the vertical plates Ⅰ3-1-2 and vertical plates Ⅱ3-1-3 at both ends of the transmission component 3 are fixedly connected to the two vertical beams 1-3 of the rack 1 respectively; then, the rack 1 is installed and connected to the outlet end of the purification device in a coaxial manner, that is, the rack outlet 1-1 is arranged coaxially with the outlet of the purification device; finally, after opening the exhaust control valve of the purification device, start the servo motor 3-2 in the transmission component 3, start the scanning display device 4, and then start normal operation: the servo motor 3-2 drives the screw 3-3 to rotate, and the rotation of the screw 3-3 drives the screw block 3-4 to rotate When the screw rod slides laterally, the screw block 3-4 slides, which in turn drives the mounting plate 3-5 and the scanning sampling piece 2 to slide laterally. Since the side of the open end is used as the sampling piece collecting port 2-2-1, the sampling piece collecting port 2-2-1 can evenly, continuously and comprehensively collect the gas purified by the filtering device during the sliding process, thereby improving the sampling accuracy of the sampling piece collecting port; the airflow sample collected by the sampling piece collecting port 2-2-1 enters the triangular cavity 2-2, is first diverted and then converged by the vertical partitions 2-2-3 arranged in a parallelogram, so that the airflow sample can flow out of the sampling piece outlet 2-2-2 evenly and stably and then enter the test tube 5, thereby improving the sampling accuracy of the sampling piece outlet - that is, ensuring the accuracy of the airflow sample entering the test tube 5, thereby ensuring the accuracy of the measurement and display data of the subsequent scanning display device 4, thereby accurately monitoring the environmental quality in real time.

Claims

1. A scanning leak detection system for a purification device, characterized in that: The system comprises a rack (1) with a rectangular frame structure, a transmission assembly (3) installed on the back of the rack (1), a scanning sampling piece (2) connected to the transmission assembly and performing a sliding scanning on the rack outlet (1-1), and a scanning display device (4) connected to the scanning sampling piece through a test tube (5); the scanning sampling piece (2) is formed by sealing two sides of two identical triangular plates (2-1) arranged in parallel to form a cavity structure having a triangular cavity (2-2); the triangular plates (2-1) are obliquely intersected with the plane where the rack outlet is located; vertical partitions (2-2-3) arranged in a parallelogram are arranged in the triangular cavity (2-2); the side surface of the open end of the triangular cavity (2-2) serves as a sampling piece collection port (2-2-1); the sampling piece collection port (2-2-1) is parallel to the plane where the rack outlet (1-1) is located; the height of the sampling piece collection port (2-2-1) matches the width of the rack outlet (1-1); A sampling piece outlet (2-2-2) is provided at the intersection of the two closed end sides of the triangular cavity (2-2); a connecting plate (2-2-4) is provided on the outer surface of the triangular plate (2-1) and at the edge of the sampling piece outlet (2-2-2); the transmission assembly (3) comprises a transmission bracket (3-1) composed of a U-shaped groove plate (3-1-1) and vertical plates I (3-1-2) and II (3-1-3) located at both ends, a screw (3-3) arranged in the groove cavity of the U-shaped groove plate, a servo motor (3-2) connected to the input end of the screw, a screw block (3-4) sleeved on the screw and combined in a threaded manner, a mounting plate (3-5) fixed on the top surface of the screw block and connected to the scanning sampling piece (2) by bolts, a baffle (3-6) arranged at the end of the transmission bracket, and a travel switch (3-7) installed on the baffle; the height of the vertical baffle (2-3-3) matches the height of the triangular cavity (2-2).

2. A purification device scanning leak detection system according to claim 1, characterized in that: The length of the rack outlet (1-1) is not greater than the length of the purification device outlet, and the width of the rack outlet (1-1) is not greater than the width of the purification device outlet; the length of the outer edge of the rack (1) is not less than the length of the purification device outlet, and the width of the outer edge of the rack (1) is not less than the width of the purification device outlet.

3. A purification device scanning leak detection system according to claim 1, characterized in that: The inlet end of the test tube (5) is connected to the sampling piece outlet (2-2-2), and the outlet end of the test tube (5) is connected to the scanning display device (4).

4. A purification device scanning leak detection system according to claim 1, characterized in that: The bent frame (1) is a rectangular frame structure formed by assembling horizontal beams (1-2) and vertical beams (1-3).

5. A purification device scanning leak detection system according to claim 1, characterized in that: The scanning display device (4) is an optical scanner.

6. A purification device scanning leak detection system according to claim 1, characterized in that: The scanning display device (4) is a particle counter.

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