Positive pressure nitrogen blowing device
By introducing a liquid level detection element and a heating element into the nitrogen blowing device, dynamic adjustment of the nitrogen blowing needle and sample heating are achieved, solving the problems of nitrogen waste and low efficiency, and improving nitrogen blowing efficiency and ease of operation.
Patent Information
- Application Number
- CN202423109245.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing nitrogen blowing equipment suffers from serious nitrogen waste, low sample evaporation efficiency, lack of bottom heating function, and complex operation. It also cannot dynamically adjust the position of the nitrogen blowing needle, resulting in extended processing time.
A positive pressure nitrogen blowing device was designed, comprising a tray module, a positive pressure module, and a nitrogen blowing module. The position of the nitrogen blowing needle is adjusted in real time by a liquid level detection device, and the sample is heated by a heating element to achieve dynamic control of nitrogen usage.
It improves nitrogen blowing efficiency, saves nitrogen consumption, shortens processing time, and enhances sample concentration efficiency and ease of operation.
Smart Images
Figure CN223637220U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to biomedical automation instrument technical field especially, relate to a positive pressure nitrogen blowing device. BACKGROUND
[0002] In laboratory analysis, often need to carry out nitrogen blowing treatment to the sample to concentrate target matter in the sample. The existing nitrogen blowing equipment has significant deficiencies: nitrogen gas is wasted seriously, sample evaporation efficiency is low, lacks bottom heating function and the problem such as complex operation. The conventional equipment cannot dynamically adjust the nitrogen blowing needle position according to the liquid level, resulting in a large amount of nitrogen gas waste and processing time extension, and at the same time, lacks the support of the heating module, and it is difficult to realize efficient concentration by relying on nitrogen gas flow alone.
[0003] Therefore, a positive pressure nitrogen blowing device is needed to solve the above problems. UTILITY MODEL CONTENT
[0004] The utility model discloses a positive pressure nitrogen blowing device, which can improve the nitrogen blowing efficiency and save the nitrogen blowing time.
[0005] According to the above idea, the technical scheme adopted by the utility model is:
[0006] A positive pressure nitrogen blowing device is provided, comprising:
[0007] A tray module includes a consumable placement plate and a heating element. The consumable placement plate is used to place a consumable plate. The heating element is arranged below the consumable placement plate and is used to heat the consumable plate.
[0008] A positive pressure module includes a positive pressure plate and a vertical sliding table. The positive pressure plate is arranged on the vertical sliding table. The vertical sliding table is used to drive the vertical movement of the positive pressure plate, so that the positive pressure plate can press the consumable plate.
[0009] A nitrogen blowing module includes a nitrogen blowing head, an air chamber sliding rail, and a liquid level detection element. The nitrogen blowing head includes an air chamber sliding table and a nitrogen blowing needle. The nitrogen blowing needle is arranged on the side of the air chamber sliding table facing the consumable plate. The air chamber sliding rail is arranged on the vertical sliding table. The air chamber sliding table is slidingly arranged on the air chamber sliding rail. The liquid level detection element is arranged on the air chamber sliding table. The liquid level detection element is used to detect the height of the liquid level in the consumable plate. The liquid level detection element is signal connected with the nitrogen blowing head, so that the nitrogen blowing needle can be inserted into the consumable plate to a predetermined depth.
[0010] Optionally, the tray module further comprises a horizontal sliding table, a first driving member and a first guide rail, the horizontal sliding table is slidingly arranged on the first guide rail, the output end of the first driving member is connected with the horizontal sliding table, the first driving member is used to drive the horizontal sliding table to move along the extension direction of the first guide rail, so that the horizontal sliding table can be located below the nitrogen blowing module, and the consumable placing plate and the heating member are arranged on the horizontal sliding table.
[0011] Optionally, the tray module further comprises a position sensor, the position sensor is used to detect the position of the horizontal sliding table, and the position sensor is signal connected with the first driving member and the positive pressure module.
[0012] Optionally, the positive pressure module further comprises a second driving member, a second guide rail and a fixed support, the second driving member and the second guide rail are arranged on the fixed support, the vertical sliding table is slidingly arranged on the second guide rail, the output end of the second driving member is connected with the vertical sliding table, and the second driving member is used to drive the vertical sliding table to move along the extension direction of the second guide rail, so that the positive pressure plate can press against the consumable plate.
[0013] Optionally, the positive pressure module further comprises a shaft coupling, a lead screw, a nut and a bearing, the nut is arranged on the vertical sliding table, the lead screw is rotatably arranged in the nut, the end of the lead screw is connected with the output end of the second driving member through the shaft coupling, the two ends of the lead screw are arranged in the inner ring of the bearing, and the outer ring of the bearing is connected with the fixed support.
[0014] Optionally, the second guide rail is provided with at least two second guide rails, the at least two second guide rails are arranged in parallel with the extension direction of the second guide rail, the vertical sliding table is provided with at least two vertical sliding grooves, and one second guide rail is correspondingly arranged in one vertical sliding groove.
[0015] Optionally, the nitrogen blowing module further comprises a third driving member, the third driving member is arranged on the vertical sliding table, the output end of the third driving member is connected with the air chamber sliding table, the third driving member is used to drive the air chamber sliding table to move along the extension direction of the air chamber sliding rail, and the third driving member is signal connected with the liquid level detecting member.
[0016] Optionally, the air chamber sliding rail is provided with at least two air chamber sliding rails, the at least two air chamber sliding rails are arranged in parallel with the extension direction of the air chamber sliding rail, the air chamber sliding table is provided with at least two air chamber sliding grooves, and one air chamber sliding rail is correspondingly arranged in one air chamber sliding groove.
[0017] Optionally, the tray module further comprises at least two plate position correction blocks, the at least two plate position correction blocks are arranged along diagonals of the consumable placing plate, the plate position correction blocks have positioning structures capable of moving in a vertical direction to fix the consumable plate at a consumable fixing position on the consumable placing plate.
[0018] Optionally, the positive pressure nitrogen blowing device further comprises a base, and the tray module, the positive pressure module and the nitrogen blowing module are arranged on the base.
[0019] The positive pressure nitrogen blowing device has the following beneficial effects:
[0020] The positive pressure nitrogen blowing device comprises a tray module, a positive pressure module and a nitrogen blowing module. The tray module comprises a consumable placing plate and a heating piece. The consumable placing plate is used for placing a consumable plate, and the heating piece is arranged below the consumable placing plate. The heating piece can heat the consumable plate, thereby improving the temperature of a solution in the consumable plate. The positive pressure module comprises a positive pressure plate and a vertical sliding table. The positive pressure plate is arranged on the vertical sliding table. The vertical sliding table is used for driving the positive pressure plate to move vertically, so that the positive pressure plate can press against the consumable plate. The nitrogen blowing module comprises a nitrogen blowing head, a gas chamber sliding rail and a liquid level detection piece. The nitrogen blowing head comprises a gas chamber sliding table and a nitrogen blowing needle. The nitrogen blowing needle is arranged on a side of the gas chamber sliding table facing the consumable plate. The gas chamber sliding rail is arranged on the vertical sliding table. The gas chamber sliding table is slidingly arranged on the gas chamber sliding rail, that is, the gas chamber sliding table can move relative to the vertical sliding table, so as to drive the nitrogen blowing needle to insert into the consumable plate. The liquid level detection piece is also arranged on the gas chamber sliding table. The liquid level detection piece is used for detecting the height of a liquid surface in the consumable plate. The liquid level detection piece is signal connected with the nitrogen blowing head. That is, the nitrogen blowing head can move a preset distance towards the consumable plate according to the height of the liquid surface in the consumable plate, so that the nitrogen blowing needle can insert into the consumable plate to a preset depth. The positive pressure nitrogen blowing device can heat the solution in the consumable plate by using the heating piece, thereby accelerating sample concentration. The position of the nitrogen blowing needle can be adjusted in real time according to the height of the liquid surface of the solution, so as to avoid nitrogen blowing waste, improve nitrogen blowing efficiency and save nitrogen blowing time to the maximum extent. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a partial structure schematic diagram of the positive pressure nitrogen blowing device provided by the utility model embodiment;
[0022] Figure 2 is a structure schematic diagram of the positive pressure module provided by the utility model embodiment;
[0023] Figure 3 is a position schematic diagram of the nitrogen blowing module and the consumable plate provided by the utility model embodiment;
[0024] Figure 4 is a partial assembly drawing of the positive pressure module and the nitrogen blowing module provided by the utility model embodiment;
[0025] Figure 5 is a partial first assembly drawing of the tray module and the base provided by the embodiment of the utility model;
[0026] Figure 6 is a partial second assembly drawing of the tray module and the base provided by the embodiment of the utility model.
[0027] In the drawing:
[0028] 1, tray module; 11, consumable placing plate; 12, heating piece; 13, horizontal sliding table; 14, first driving piece; 141, driving motor; 142, driving wheel; 143, driven wheel; 144, transmission belt; 15, first guide rail; 16, plate position correction block; 17, position sensor;
[0029] 2, positive pressure module; 21, positive pressure plate; 22, vertical sliding table; 23, second driving piece; 24, second guide rail; 25, fixed support;
[0030] 3, nitrogen blowing module; 31, nitrogen blowing head; 311, air chamber sliding table; 312, nitrogen blowing needle; 32, third driving piece; 33, air chamber sliding rail; 34, liquid level detection piece;
[0031] 4, base;
[0032] 100, consumable plate. DETAILED DESCRIPTION
[0033] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model will be further explained by specific implementation manners below in combination with the drawings. It can be understood that the specific embodiments described here are only used to explain the utility model, not to limit the utility model. In addition, it needs to be explained that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all.
[0034] In the description of the utility model, unless another explicit provision and limitation, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0035] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "upper surface of" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature "under", "below" and "under surface of" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature.
[0036] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0037] The technical scheme of the utility model will be further illustrated below by specific embodiments in conjunction with the drawings.
[0038] As Figures 1 to 6As shown, the embodiment provides a positive pressure nitrogen blowing device, which comprises a tray module 1, a positive pressure module 2 and a nitrogen blowing module 3. The tray module 1 comprises a consumable placing plate 11 and a heating piece 12, the consumable placing plate 11 is used for placing a consumable plate 100, and the heating piece 12 is arranged below the consumable placing plate 11, and the heating piece 12 can heat the consumable plate 100, so as to improve the temperature of the solution in the consumable plate 100. The positive pressure module 2 comprises a positive pressure plate 21 and a vertical sliding table 22, the positive pressure plate 21 is arranged on the vertical sliding table 22, and the vertical sliding table 22 is used for driving the vertical movement of the positive pressure plate 21, so that the positive pressure plate 21 can press the consumable plate 100. In specific implementation, the vertical movement of the vertical sliding table 22 can make the positive pressure plate 21 press the consumable plate 100 located below the positive pressure plate 21, a filter extraction column is arranged on the consumable plate 100, and the positive pressure plate 21 can be used to apply positive pressure to the filter extraction column, so that the extraction liquid is forced to enter the filter extraction column arranged on the consumable plate 100, and sample separation is completed. The nitrogen blowing module 3 comprises a nitrogen blowing head 31, a gas chamber sliding rail 33 and a liquid level detection piece 34, the nitrogen blowing head 31 comprises a gas chamber sliding table 311 and a nitrogen blowing needle 312, the nitrogen blowing needle 312 is arranged on the side of the gas chamber sliding table 311 facing the consumable plate 100, the gas chamber sliding rail 33 is arranged on the vertical sliding table 22, and the gas chamber sliding table 311 is slidingly arranged on the gas chamber sliding rail 33, that is, the gas chamber sliding table 311 can move relative to the vertical sliding table 22, so as to drive the nitrogen blowing needle 312 to insert into the consumable plate 100. The liquid level detection piece 34 is also arranged on the gas chamber sliding table 311, and the liquid level detection piece 34 is used for detecting the height of the liquid level in the consumable plate 100, and the liquid level detection piece 34 is signal connected with the nitrogen blowing head 31, that is, the nitrogen blowing head 31 can be moved by a preset distance towards the consumable plate 100 according to the height of the liquid level in the consumable plate 100, so that the nitrogen blowing needle 312 can be inserted into the consumable plate 100 to a preset depth. In specific implementation, the heating piece 12 can heat the solution in the consumable plate 100 to accelerate sample concentration, and the position of the nitrogen blowing needle 312 can be adjusted in real time according to the liquid level of the solution, so as to avoid waste of nitrogen blowing, improve the nitrogen blowing efficiency, and maximize the nitrogen blowing time. The positive pressure nitrogen blowing device designed in the utility model integrates the functions of liquid level detection, bottom heating and positive pressure control. The device can monitor the liquid position in real time through the liquid level detection piece 34, dynamically adjust the insertion depth of the nitrogen blowing needle 312, ensure the utilization efficiency of nitrogen, and cooperate the heating piece 12 with the positive pressure module 2 to accelerate sample concentration. The modular design improves the applicability and operation convenience of the device. The multifunctional integrated design not only improves the experimental efficiency and reliability, but also meets the demand of high-throughput detection, and provides an efficient and accurate solution for laboratory analysis.
[0039] Optionally, the liquid level detection member 34 is provided with at least two liquid level detection members 34, the at least two liquid level detection members 34 are arranged along the first side edge of the consumable plate 100, the consumable plate 100 has NXM hole positions, the NXM hole positions include N columns arranged along the first side edge and M rows arranged perpendicularly to the first side edge, each liquid level detection member 34 can capture the liquid level in the first row of hole positions closest to the liquid level detection member 34, and by default, the liquid levels in each column of hole positions are consistent. By arranging at least two liquid level detection members 34 to jointly measure the liquid level in the first row of hole positions, the two liquid level detection members 34 correct each other, so as to ensure the accuracy of the liquid level detection member 34 in detecting the liquid level in the hole position. In the embodiment, the liquid level detection member 34 includes a liquid level detection camera, the liquid level detection camera is arranged towards the consumable plate 100, can capture the liquid level image in the first row of hole positions closest to the liquid level detection member 34 in the consumable plate 100 in real time, the liquid level image is transmitted to the image detection element of the liquid level detection member 34 and the liquid level image is analyzed, so as to obtain the liquid level, and the liquid level is further fed back to the nitrogen blowing head 31, so that the nitrogen blowing head 31 can adjust the position according to the liquid level, and accurately control the distance between the nitrogen blowing needle 312 and the liquid level.
[0040] Optionally, the tray module 1 further comprises at least two plate position correction blocks 16, the at least two plate position correction blocks 16 are arranged along the diagonal lines of the consumable placing plate 11, the plate position correction block 16 has a positioning structure, the positioning structure can move in the vertical direction, so that the consumable plate 100 is fixed on the consumable fixing position of the consumable placing plate 11. In the embodiment, the plate position correction block 16 comprises a fixed body and a positioning structure, the fixed body is fixed on the consumable placing plate 11, and the positioning structure is a bolt, which is arranged vertically and is threadedly connected with the horizontally arranged fixed body. By rotating the bolt, the bolt can move in the vertical direction, that is, the depth of the bolt inserted into the fixed body is changed. In the embodiment, the fixed body has a first edge and a second edge arranged at an angle, at least one positioning structure is arranged on each of the first edge and the second edge, and when the consumable plate 100 is placed on the consumable placing plate 11, the first edge and the second edge are located on the two adjacent sides of the consumable plate 100 respectively. By rotating the positioning structure on the at least two plate position correction blocks 16 arranged along the diagonal lines of the consumable placing plate 11, the positioning structure moves upward relative to the fixed body, so that the consumable plate 100 is clamped between the plurality of positioning structures in the horizontal plane, so that the consumable plate 100 is fixed on the consumable fixing position of the consumable placing plate 11, and the subsequent accurate cooperation with the nitrogen blowing needle 312 is facilitated.
[0041] Further, as Figure 6As shown, the tray module 1 also includes a horizontal slide 13, a first drive member 14, and a first guide rail 15. The horizontal slide 13 is slidably disposed on the first guide rail 15. The output end of the first drive member 14 is connected to the horizontal slide 13. The first drive member 14 is used to drive the horizontal slide 13 to move along the extension direction of the first guide rail 15 so that the horizontal slide 13 can be located below the nitrogen blowing module 3. The consumable placement plate 11 and the heating element 12 are both disposed on the horizontal slide 13. In this embodiment, the first driving member 14 includes a drive motor 141, a driving wheel 142, a driven wheel 143, and a transmission belt 144. The driving wheel 142 and the driven wheel 143 are connected by the transmission belt 144. The driving wheel 142 is connected to the output shaft of the drive motor 141, and the horizontal slide 13 is connected to the transmission belt 144. That is, the output shaft of the drive motor 141 rotates to drive the driving wheel 142 to rotate synchronously, and the driven wheel 143 rotates synchronously with the driving wheel 142 through the transmission belt 144, so that the horizontal slide 13 connected to the transmission belt 144 can move along the extension direction of the transmission belt 144. In other embodiments, the first driving member 14 can also be a drive cylinder. The horizontal slide 13 is connected to the output end of the drive cylinder. The reciprocating movement of the output end can drive the horizontal slide 13 to move repeatedly along the first guide rail 15. The first guide rail 15 is used to limit the movement path of the horizontal slide 13 to ensure that the path of the horizontal slide 13 is consistent each time it moves back and forth.
[0042] Optionally, such as Figure 5 As shown, the tray module 1 also includes a position sensor 17, which is used to detect the position of the horizontal slide 13. The position sensor 17 is signal-connected to both the first drive member 14 and the positive pressure module 2. In this embodiment, the position sensor 17 can be an optical position sensor. That is, when the horizontal slide 13 moves to a preset position, the optical position sensor can detect that it has moved into place. At this time, the position signal can be transmitted to the first drive member 14 so that the first drive member 14 stops driving the horizontal slide 13 and transmits the position signal to the positive pressure module 2 so that the positive pressure module 2 can start working according to a preset mode. For example, the vertical slide 22 can move towards one side of the tray module 1 so that the positive pressure plate 21 is close to the consumable plate 100.
[0043] Optionally, such as Figure 2As shown, the positive pressure module 2 further comprises a second driving member 23, a second guide rail 24 and a fixed support 25, the second driving member 23 and the second guide rail 24 are both arranged on the fixed support 25, the vertical sliding table 22 is slidingly arranged on the second guide rail 24, the output end of the second driving member 23 is connected with the vertical sliding table 22, and the second driving member 23 is used to drive the vertical sliding table 22 to move along the extension direction of the second guide rail 24, so that the positive pressure plate 21 can press against the consumable plate 100. In the embodiment, the fixed support 25 comprises a left vertical plate, a right vertical plate and a back plate which are oppositely arranged and connected, the back plate is perpendicular to the left vertical plate and the right vertical plate, the second guide rail 24 and the second driving member 23 are both arranged on the back plate, and the second guide rail 24 extends in the vertical direction, so that the vertical sliding table 22 can reciprocate in the vertical direction. The second driving member 23 is a driving cylinder, the output shaft of the driving cylinder is connected with the vertical sliding table 22, and the cylinder shaft reciprocates in the vertical direction, so as to drive the vertical sliding table 22 to move along the extension direction of the second guide rail 24.
[0044] Optionally, the positive pressure module 2 further comprises a transmission member, and the output end of the second driving member 23 is connected with the vertical sliding table 22 through the transmission member. The transmission member comprises a shaft coupling, a lead screw, a nut and a bearing, the nut is arranged on the vertical sliding table 22, the lead screw is rotatably arranged in the nut, the end of the lead screw is connected with the output end of the second driving member 23 through the shaft coupling, and the lead screw cooperates with the nut, so that the rotation of the lead screw around itself can be converted into the movement of the nut along the axial direction of the lead screw, and the movement path of the vertical sliding table 22 is consistent with that of the nut. In specific implementation, the bearing is provided with at least two, the two ends of the lead screw are respectively arranged in the inner rings of the two bearings, and the outer rings of the bearings are connected with the fixed support 25, that is, the outer rings of the bearings are fixed with the fixed support 25, and the inner rings of the bearings rotate synchronously with the lead screw. The bearing is used to enable the lead screw to rotate relative to the fixed support 25, while achieving the support of the lead screw.
[0045] Optionally, the second guide rail 24 is provided with at least two, and the at least two second guide rails 24 are arranged in parallel and spaced apart along the extension direction of the second guide rail 24. The vertical sliding table 22 is provided with at least two vertical sliding grooves, and one second guide rail 24 is correspondingly arranged in one vertical sliding groove. The plurality of second guide rails 24 can not only further ensure the smooth movement of the vertical sliding table 22, but also can strengthen the limiting effect of the second guide rail 24 on the moving direction of the vertical sliding table 22, so as to avoid the rotation of the vertical sliding table 22 caused by the rotation of the lead screw.
[0046] Further, as shown in FIG. 1, Figure 3 and Figure 4As shown, the nitrogen blowing module 3 further comprises a third driving member 32 arranged on the vertical sliding table 22, an output end of the third driving member 32 is connected with the air chamber sliding table 311, the third driving member 32 is used for driving the air chamber sliding table 311 to move along the extending direction of the air chamber sliding rail 33, and the third driving member 32 is signal connected with the liquid level detecting member 34. In the embodiment, the third driving member 32 is a driving cylinder, the air chamber sliding table 311 is connected with an output end of the driving cylinder, and the third driving member 32 drives the air chamber sliding table 311 to move a corresponding distance according to the signal feedback of the liquid level detecting member 34. The air chamber sliding rail 33 is consistent with the extending direction of the second guide rail 24, and both are vertical directions.
[0047] Optionally, the air chamber sliding rail 33 is provided with at least two air chamber sliding rails 33, the at least two air chamber sliding rails 33 are arranged at intervals in a direction perpendicular to the extending direction of the air chamber sliding rail 33, the air chamber sliding table 311 is provided with at least two air chamber sliding grooves, and one air chamber sliding rail 33 is correspondingly inserted into one air chamber sliding groove, so as to further ensure that the air chamber sliding table 311 moves stably.
[0048] Optionally, the positive pressure nitrogen blowing device further comprises a base 4, the tray module 1, the positive pressure module 2 and the nitrogen blowing module 3 are arranged on the base 4. In the embodiment, the first driving member 14 and the first guide rail 15 of the tray module 1 are arranged on the base 4, and the consumable placing plate 11 is slidingly arranged above the first guide rail 15. The fixed support 25 of the positive pressure module 2 is arranged on the base 4, so that the vertical sliding table 22 and the air chamber sliding table 311 are located above the consumable placing plate 11.
[0049] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above embodiments. Without departing from the spirit and scope of the present application, the present application has various changes and changes, and these changes and changes all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A positive pressure nitrogen blowing device, characterized by, The application relates to a tray module (1) comprising a consumable placing plate (11) for placing a consumable plate (100) and a heating piece (12) arranged below the consumable placing plate (11) and used for heating the consumable plate (100); a positive pressure module (2) comprising a positive pressure plate (21) arranged on a vertical sliding table (22) and used for vertically moving the positive pressure plate (21) to enable the positive pressure plate (21) to press against the consumable plate (100); and a nitrogen blowing module (3) comprising a nitrogen blowing head (31) comprising a gas chamber sliding table (311) and a nitrogen blowing needle (312) arranged on a side of the gas chamber sliding table (311) facing the consumable plate (100), a gas chamber sliding rail (33) arranged on the vertical sliding table (22), and a liquid level detection piece (34) arranged on the gas chamber sliding table (311) and used for detecting the height of a liquid level in the consumable plate (100), the liquid level detection piece (34) being signal connected with the nitrogen blowing head (31) to enable the nitrogen blowing needle (312) to be inserted into the consumable plate (100) to a preset depth. The tray module (1) further comprises a horizontal sliding table (13) slidingly arranged on a first guide rail (15), a first driving piece (14) having an output end connected with the horizontal sliding table (13) and used for moving the horizontal sliding table (13) along the extension direction of the first guide rail (15) to enable the horizontal sliding table (13) to be located below the nitrogen blowing module (3), and the consumable placing plate (11) and the heating piece (12) are arranged on the horizontal sliding table (13). The tray module (1) further comprises a position sensor (17) used for detecting the position of the horizontal sliding table (13) and signal connected with the first driving piece (14) and the positive pressure module (2). The positive pressure module (2) further comprises a second driving piece (23), a second guide rail (24) and a fixing support (25), the second driving piece (23) and the second guide rail (24) are arranged on the fixing support (25), the vertical sliding table (22) is slidingly arranged on the second guide rail (24), the output end of the second driving piece (23) is connected with the vertical sliding table (22), and the second driving piece (23) is used for moving the vertical sliding table (22) along the extension direction of the second guide rail (24) to enable the positive pressure plate (21) to press against the consumable plate (100).
2. The positive pressure nitrogen purge device of claim 1, wherein, 3. The positive pressure nitrogen flush device of claim 2, wherein, 4. The positive pressure nitrogen purge device of claim 1, wherein, 5. The positive pressure nitrogen flush device of claim 4, wherein, The positive pressure module (2) further comprises a shaft coupling, a lead screw, a nut and a bearing, the nut is arranged on the vertical sliding table (22), the lead screw is rotatably arranged in the nut, the end of the lead screw is connected with the output end of the second driving member (23) through the shaft coupling, and the two ends of the lead screw are arranged in the inner ring of the bearing, and the outer ring of the bearing is connected with the fixed support (25).
6. The positive pressure nitrogen flush device of claim 4, wherein, The second guide rail (24) is provided with at least two second guide rails (24) which are arranged in parallel with the extension direction of the second guide rail (24), and the vertical sliding table (22) is provided with at least two vertical sliding grooves, and one second guide rail (24) is arranged in one vertical sliding groove.
7. The positive pressure nitrogen flush device of claim 1, wherein, The nitrogen blowing module (3) further comprises a third driving member (32), the third driving member (32) is arranged on the vertical sliding table (22), the output end of the third driving member (32) is connected with the air chamber sliding table (311), the third driving member (32) is used for driving the air chamber sliding table (311) to move along the extension direction of the air chamber sliding rail (33), and the third driving member (32) is signal connected with the liquid level detector (34).
8. The positive pressure nitrogen flush device of claim 1, wherein, The air chamber sliding rail (33) is provided with at least two air chamber sliding rails (33) which are arranged in parallel with the extension direction of the air chamber sliding rail (33), and the air chamber sliding table (311) is provided with at least two air chamber sliding grooves, and one air chamber sliding rail (33) is arranged in one air chamber sliding groove.
9. The positive pressure nitrogen flush device of claim 1, wherein, The tray module (1) further comprises at least two plate position correction blocks (16), at least two plate position correction blocks (16) are arranged along the diagonal lines of the consumable placing plate (11), the plate position correction block (16) has a positioning structure, and the positioning structure can be moved in the vertical direction to fix the consumable plate (100) on the consumable fixing position of the consumable placing plate (11).
10. The positive pressure nitrogen flush device of claim 1, wherein, The positive pressure nitrogen blowing device further comprises a base (4), and the tray module (1), the positive pressure module (2) and the nitrogen blowing module (3) are arranged on the base (4).